diff options
Diffstat (limited to 'arch/ppc')
336 files changed, 105169 insertions, 0 deletions
diff --git a/arch/ppc/config.mk b/arch/ppc/config.mk new file mode 100644 index 0000000..06a3b10 --- /dev/null +++ b/arch/ppc/config.mk @@ -0,0 +1,44 @@ +# +# (C) Copyright 2000-2002 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +CROSS_COMPILE ?= ppc_8xx- + +STANDALONE_LOAD_ADDR = 0x40000 + +PLATFORM_RELFLAGS += -mrelocatable +PLATFORM_CPPFLAGS += -DCONFIG_PPC -D__powerpc__ +PLATFORM_LDFLAGS += -n + +# +# When cross-compiling on NetBSD, we have to define __PPC__ or else we +# will pick up a va_list declaration that is incompatible with the +# actual argument lists emitted by the compiler. +# +# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3] + +ifeq ($(CROSS_COMPILE),powerpc-netbsd-) +PLATFORM_CPPFLAGS+= -D__PPC__ +endif +ifeq ($(CROSS_COMPILE),powerpc-openbsd-) +PLATFORM_CPPFLAGS+= -D__PPC__ +endif diff --git a/arch/ppc/cpu/74xx_7xx/Makefile b/arch/ppc/cpu/74xx_7xx/Makefile new file mode 100644 index 0000000..fe905f3 --- /dev/null +++ b/arch/ppc/cpu/74xx_7xx/Makefile @@ -0,0 +1,51 @@ +# +# (C) Copyright 2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# (C) Copyright 2001 +# Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).a + +START = start.o +SOBJS = cache.o kgdb.o io.o +COBJS = traps.o cpu.o cpu_init.o speed.o interrupts.o + +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/ppc/cpu/74xx_7xx/cache.S b/arch/ppc/cpu/74xx_7xx/cache.S new file mode 100644 index 0000000..66c7298 --- /dev/null +++ b/arch/ppc/cpu/74xx_7xx/cache.S @@ -0,0 +1,404 @@ +#include <config.h> +#include <74xx_7xx.h> +#include <version.h> + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#ifndef CACHE_LINE_SIZE +# define CACHE_LINE_SIZE L1_CACHE_BYTES +#endif + +#if CACHE_LINE_SIZE == 128 +#define LG_CACHE_LINE_SIZE 7 +#elif CACHE_LINE_SIZE == 32 +#define LG_CACHE_LINE_SIZE 5 +#elif CACHE_LINE_SIZE == 16 +#define LG_CACHE_LINE_SIZE 4 +#elif CACHE_LINE_SIZE == 8 +#define LG_CACHE_LINE_SIZE 3 +#else +# error "Invalid cache line size!" +#endif + +/* + * Invalidate L1 instruction cache. + */ +_GLOBAL(invalidate_l1_instruction_cache) + mfspr r3,PVR + rlwinm r3,r3,16,16,31 + cmpi 0,r3,1 + beqlr /* for 601, do nothing */ + /* 603/604 processor - use invalidate-all bit in HID0 */ + mfspr r3,HID0 + ori r3,r3,HID0_ICFI + mtspr HID0,r3 + isync + blr + +/* + * Invalidate L1 data cache. + */ +_GLOBAL(invalidate_l1_data_cache) + mfspr r3,HID0 + ori r3,r3,HID0_DCFI + mtspr HID0,r3 + isync + blr + +/* + * Flush data cache. + */ +_GLOBAL(flush_dcache) + lis r3,0 + lis r5,CACHE_LINE_SIZE +flush: + cmp 0,1,r3,r5 + bge done + lwz r5,0(r3) + lis r5,CACHE_LINE_SIZE + addi r3,r3,0x4 + b flush +done: + blr +/* + * Write any modified data cache blocks out to memory + * and invalidate the corresponding instruction cache blocks. + * This is a no-op on the 601. + * + * flush_icache_range(unsigned long start, unsigned long stop) + */ +_GLOBAL(flush_icache_range) + mfspr r5,PVR + rlwinm r5,r5,16,16,31 + cmpi 0,r5,1 + beqlr /* for 601, do nothing */ + li r5,CACHE_LINE_SIZE-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,LG_CACHE_LINE_SIZE + beqlr + mtctr r4 + mr r6,r3 +1: dcbst 0,r3 + addi r3,r3,CACHE_LINE_SIZE + bdnz 1b + sync /* wait for dcbst's to get to ram */ + mtctr r4 +2: icbi 0,r6 + addi r6,r6,CACHE_LINE_SIZE + bdnz 2b + sync /* additional sync needed on g4 */ + isync + blr +/* + * Write any modified data cache blocks out to memory. + * Does not invalidate the corresponding cache lines (especially for + * any corresponding instruction cache). + * + * clean_dcache_range(unsigned long start, unsigned long stop) + */ +_GLOBAL(clean_dcache_range) + li r5,CACHE_LINE_SIZE-1 + andc r3,r3,r5 /* align r3 down to cache line */ + subf r4,r3,r4 /* r4 = offset of stop from start of cache line */ + add r4,r4,r5 /* r4 += cache_line_size-1 */ + srwi. r4,r4,LG_CACHE_LINE_SIZE /* r4 = number of cache lines to flush */ + beqlr /* if r4 == 0 return */ + mtctr r4 /* ctr = r4 */ + + sync +1: dcbst 0,r3 + addi r3,r3,CACHE_LINE_SIZE + bdnz 1b + sync /* wait for dcbst's to get to ram */ + blr + +/* + * Write any modified data cache blocks out to memory + * and invalidate the corresponding instruction cache blocks. + * + * flush_dcache_range(unsigned long start, unsigned long stop) + */ +_GLOBAL(flush_dcache_range) + li r5,CACHE_LINE_SIZE-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,LG_CACHE_LINE_SIZE + beqlr + mtctr r4 + + sync +1: dcbf 0,r3 + addi r3,r3,CACHE_LINE_SIZE + bdnz 1b + sync /* wait for dcbf's to get to ram */ + blr + +/* + * Like above, but invalidate the D-cache. This is used by the 8xx + * to invalidate the cache so the PPC core doesn't get stale data + * from the CPM (no cache snooping here :-). + * + * invalidate_dcache_range(unsigned long start, unsigned long stop) + */ +_GLOBAL(invalidate_dcache_range) + li r5,CACHE_LINE_SIZE-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,LG_CACHE_LINE_SIZE + beqlr + mtctr r4 + + sync +1: dcbi 0,r3 + addi r3,r3,CACHE_LINE_SIZE + bdnz 1b + sync /* wait for dcbi's to get to ram */ + blr + +/* + * Flush a particular page from the data cache to RAM. + * Note: this is necessary because the instruction cache does *not* + * snoop from the data cache. + * This is a no-op on the 601 which has a unified cache. + * + * void __flush_page_to_ram(void *page) + */ +_GLOBAL(__flush_page_to_ram) + mfspr r5,PVR + rlwinm r5,r5,16,16,31 + cmpi 0,r5,1 + beqlr /* for 601, do nothing */ + rlwinm r3,r3,0,0,19 /* Get page base address */ + li r4,4096/CACHE_LINE_SIZE /* Number of lines in a page */ + mtctr r4 + mr r6,r3 +0: dcbst 0,r3 /* Write line to ram */ + addi r3,r3,CACHE_LINE_SIZE + bdnz 0b + sync + mtctr r4 +1: icbi 0,r6 + addi r6,r6,CACHE_LINE_SIZE + bdnz 1b + sync + isync + blr + +/* + * Flush a particular page from the instruction cache. + * Note: this is necessary because the instruction cache does *not* + * snoop from the data cache. + * This is a no-op on the 601 which has a unified cache. + * + * void __flush_icache_page(void *page) + */ +_GLOBAL(__flush_icache_page) + mfspr r5,PVR + rlwinm r5,r5,16,16,31 + cmpi 0,r5,1 + beqlr /* for 601, do nothing */ + li r4,4096/CACHE_LINE_SIZE /* Number of lines in a page */ + mtctr r4 +1: icbi 0,r3 + addi r3,r3,CACHE_LINE_SIZE + bdnz 1b + sync + isync + blr + +/* + * Clear a page using the dcbz instruction, which doesn't cause any + * memory traffic (except to write out any cache lines which get + * displaced). This only works on cacheable memory. + */ +_GLOBAL(clear_page) + li r0,4096/CACHE_LINE_SIZE + mtctr r0 +1: dcbz 0,r3 + addi r3,r3,CACHE_LINE_SIZE + bdnz 1b + blr + +/* + * Enable L1 Instruction cache + */ +_GLOBAL(icache_enable) + mfspr r3, HID0 + li r5, HID0_ICFI|HID0_ILOCK + andc r3, r3, r5 + ori r3, r3, HID0_ICE + ori r5, r3, HID0_ICFI + mtspr HID0, r5 + mtspr HID0, r3 + isync + blr + +/* + * Disable L1 Instruction cache + */ +_GLOBAL(icache_disable) + mflr r4 + bl invalidate_l1_instruction_cache /* uses r3 */ + sync + mtlr r4 + mfspr r3, HID0 + li r5, 0 + ori r5, r5, HID0_ICE + andc r3, r3, r5 + mtspr HID0, r3 + isync + blr + +/* + * Is instruction cache enabled? + */ +_GLOBAL(icache_status) + mfspr r3, HID0 + andi. r3, r3, HID0_ICE + blr + + +_GLOBAL(l1dcache_enable) + mfspr r3, HID0 + li r5, HID0_DCFI|HID0_DLOCK + andc r3, r3, r5 + mtspr HID0, r3 /* no invalidate, unlock */ + ori r3, r3, HID0_DCE + ori r5, r3, HID0_DCFI + mtspr HID0, r5 /* enable + invalidate */ + mtspr HID0, r3 /* enable */ + sync + blr + +/* + * Enable data cache(s) - L1 and optionally L2 + * Calls l2cache_enable. LR saved in r5 + */ +_GLOBAL(dcache_enable) + mfspr r3, HID0 + li r5, HID0_DCFI|HID0_DLOCK + andc r3, r3, r5 + mtspr HID0, r3 /* no invalidate, unlock */ + ori r3, r3, HID0_DCE + ori r5, r3, HID0_DCFI + mtspr HID0, r5 /* enable + invalidate */ + mtspr HID0, r3 /* enable */ + sync +#ifdef CONFIG_SYS_L2 + mflr r5 + bl l2cache_enable /* uses r3 and r4 */ + sync + mtlr r5 +#endif + blr + + +/* + * Disable data cache(s) - L1 and optionally L2 + * Calls flush_dcache and l2cache_disable_no_flush. + * LR saved in r4 + */ +_GLOBAL(dcache_disable) + mflr r4 /* save link register */ + bl flush_dcache /* uses r3 and r5 */ + sync + mfspr r3, HID0 + li r5, HID0_DCFI|HID0_DLOCK + andc r3, r3, r5 + mtspr HID0, r3 /* no invalidate, unlock */ + li r5, HID0_DCE|HID0_DCFI + andc r3, r3, r5 /* no enable, no invalidate */ + mtspr HID0, r3 + sync +#ifdef CONFIG_SYS_L2 + bl l2cache_disable_no_flush /* uses r3 */ +#endif + mtlr r4 /* restore link register */ + blr + +/* + * Is data cache enabled? + */ +_GLOBAL(dcache_status) + mfspr r3, HID0 + andi. r3, r3, HID0_DCE + blr + +/* + * Invalidate L2 cache using L2I and polling L2IP or L2I + */ +_GLOBAL(l2cache_invalidate) + sync + mfspr r3, l2cr + oris r3, r3, L2CR_L2I@h + sync + mtspr l2cr, r3 + sync + mfspr r3, PVR + sync + rlwinm r3, r3, 16,16,31 + cmpli 0,r3,0x8000 /* 7451, 7441 */ + beq 0,inv_7450 + cmpli 0,r3,0x8001 /* 7455, 7445 */ + beq 0,inv_7450 + cmpli 0,r3,0x8002 /* 7457, 7447 */ + beq 0,inv_7450 + cmpli 0,r3,0x8003 /* 7447A */ + beq 0,inv_7450 + cmpli 0,r3,0x8004 /* 7448 */ + beq 0,inv_7450 +invl2: + mfspr r3, l2cr + andi. r3, r3, L2CR_L2IP + bne invl2 + /* turn off the global invalidate bit */ + mfspr r3, l2cr + rlwinm r3, r3, 0, 11, 9 + sync + mtspr l2cr, r3 + sync + blr +inv_7450: + mfspr r3, l2cr + andis. r3, r3, L2CR_L2I@h + bne inv_7450 + blr + +/* + * Enable L2 cache + * Calls l2cache_invalidate. LR is saved in r4 + */ +_GLOBAL(l2cache_enable) + mflr r4 /* save link register */ + bl l2cache_invalidate /* uses r3 */ + sync + lis r3, L2_ENABLE@h + ori r3, r3, L2_ENABLE@l + mtspr l2cr, r3 + isync + mtlr r4 /* restore link register */ + blr + +/* + * Disable L2 cache + * Calls flush_dcache. LR is saved in r4 + */ +_GLOBAL(l2cache_disable) + mflr r4 /* save link register */ + bl flush_dcache /* uses r3 and r5 */ + sync + mtlr r4 /* restore link register */ +l2cache_disable_no_flush: /* provide way to disable L2 w/o flushing */ + lis r3, L2_INIT@h + ori r3, r3, L2_INIT@l + mtspr l2cr, r3 + isync + blr diff --git a/arch/ppc/cpu/74xx_7xx/config.mk b/arch/ppc/cpu/74xx_7xx/config.mk new file mode 100644 index 0000000..df1f6ac --- /dev/null +++ b/arch/ppc/cpu/74xx_7xx/config.mk @@ -0,0 +1,26 @@ +# +# (C) Copyright 2001 +# Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +PLATFORM_RELFLAGS += -fPIC -meabi + +PLATFORM_CPPFLAGS += -DCONFIG_74xx_7xx -ffixed-r2 -mstring diff --git a/arch/ppc/cpu/74xx_7xx/cpu.c b/arch/ppc/cpu/74xx_7xx/cpu.c new file mode 100644 index 0000000..3c17277 --- /dev/null +++ b/arch/ppc/cpu/74xx_7xx/cpu.c @@ -0,0 +1,320 @@ +/* + * (C) Copyright 2001 + * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * cpu.c + * + * CPU specific code + * + * written or collected and sometimes rewritten by + * Magnus Damm <damm@bitsmart.com> + * + * minor modifications by + * Wolfgang Denk <wd@denx.de> + * + * more modifications by + * Josh Huber <huber@mclx.com> + * added support for the 74xx series of cpus + * added support for the 7xx series of cpus + * made the code a little less hard-coded, and more auto-detectish + */ + +#include <common.h> +#include <command.h> +#include <74xx_7xx.h> +#include <asm/cache.h> + +#if defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#include <fdt_support.h> +#endif + +#ifdef CONFIG_AMIGAONEG3SE +#include "../board/MAI/AmigaOneG3SE/via686.h" +#include "../board/MAI/AmigaOneG3SE/memio.h" +#endif + +DECLARE_GLOBAL_DATA_PTR; + +cpu_t +get_cpu_type(void) +{ + uint pvr = get_pvr(); + cpu_t type; + + type = CPU_UNKNOWN; + + switch (PVR_VER(pvr)) { + case 0x000c: + type = CPU_7400; + break; + case 0x0008: + type = CPU_750; + + if (((pvr >> 8) & 0xff) == 0x01) { + type = CPU_750CX; /* old CX (80100 and 8010x?)*/ + } else if (((pvr >> 8) & 0xff) == 0x22) { + type = CPU_750CX; /* CX (82201,82202) and CXe (82214) */ + } else if (((pvr >> 8) & 0xff) == 0x33) { + type = CPU_750CX; /* CXe (83311) */ + } else if (((pvr >> 12) & 0xF) == 0x3) { + type = CPU_755; + } + break; + + case 0x7000: + type = CPU_750FX; + break; + + case 0x7002: + type = CPU_750GX; + break; + + case 0x800C: + type = CPU_7410; + break; + + case 0x8000: + type = CPU_7450; + break; + + case 0x8001: + type = CPU_7455; + break; + + case 0x8002: + type = CPU_7457; + break; + + case 0x8003: + type = CPU_7447A; + break; + + case 0x8004: + type = CPU_7448; + break; + + default: + break; + } + + return type; +} + +/* ------------------------------------------------------------------------- */ + +#if !defined(CONFIG_BAB7xx) +int checkcpu (void) +{ + uint type = get_cpu_type(); + uint pvr = get_pvr(); + ulong clock = gd->cpu_clk; + char buf[32]; + char *str; + + puts ("CPU: "); + + switch (type) { + case CPU_750CX: + printf ("750CX%s v%d.%d", (pvr&0xf0)?"e":"", + (pvr>>8) & 0xf, + pvr & 0xf); + goto PR_CLK; + + case CPU_750: + str = "750"; + break; + + case CPU_750FX: + str = "750FX"; + break; + + case CPU_750GX: + str = "750GX"; + break; + + case CPU_755: + str = "755"; + break; + + case CPU_7400: + str = "MPC7400"; + break; + + case CPU_7410: + str = "MPC7410"; + break; + + case CPU_7447A: + str = "MPC7447A"; + break; + + case CPU_7448: + str = "MPC7448"; + break; + + case CPU_7450: + str = "MPC7450"; + break; + + case CPU_7455: + str = "MPC7455"; + break; + + case CPU_7457: + str = "MPC7457"; + break; + + default: + printf("Unknown CPU -- PVR: 0x%08x\n", pvr); + return -1; + } + + printf ("%s v%d.%d", str, (pvr >> 8) & 0xFF, pvr & 0xFF); +PR_CLK: + printf (" @ %s MHz\n", strmhz(buf, clock)); + + return (0); +} +#endif +/* these two functions are unimplemented currently [josh] */ + +/* -------------------------------------------------------------------- */ +/* L1 i-cache */ + +int +checkicache(void) +{ + return 0; /* XXX */ +} + +/* -------------------------------------------------------------------- */ +/* L1 d-cache */ + +int +checkdcache(void) +{ + return 0; /* XXX */ +} + +/* -------------------------------------------------------------------- */ + +static inline void +soft_restart(unsigned long addr) +{ + /* SRR0 has system reset vector, SRR1 has default MSR value */ + /* rfi restores MSR from SRR1 and sets the PC to the SRR0 value */ + + __asm__ __volatile__ ("mtspr 26, %0" :: "r" (addr)); + __asm__ __volatile__ ("li 4, (1 << 6)" ::: "r4"); + __asm__ __volatile__ ("mtspr 27, 4"); + __asm__ __volatile__ ("rfi"); + + while(1); /* not reached */ +} + + +#if !defined(CONFIG_PCIPPC2) && \ + !defined(CONFIG_BAB7xx) && \ + !defined(CONFIG_ELPPC) && \ + !defined(CONFIG_PPMC7XX) +/* no generic way to do board reset. simply call soft_reset. */ +void +do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + ulong addr; + /* flush and disable I/D cache */ + __asm__ __volatile__ ("mfspr 3, 1008" ::: "r3"); + __asm__ __volatile__ ("ori 5, 5, 0xcc00" ::: "r5"); + __asm__ __volatile__ ("ori 4, 3, 0xc00" ::: "r4"); + __asm__ __volatile__ ("andc 5, 3, 5" ::: "r5"); + __asm__ __volatile__ ("sync"); + __asm__ __volatile__ ("mtspr 1008, 4"); + __asm__ __volatile__ ("isync"); + __asm__ __volatile__ ("sync"); + __asm__ __volatile__ ("mtspr 1008, 5"); + __asm__ __volatile__ ("isync"); + __asm__ __volatile__ ("sync"); + +#ifdef CONFIG_SYS_RESET_ADDRESS + addr = CONFIG_SYS_RESET_ADDRESS; +#else + /* + * note: when CONFIG_SYS_MONITOR_BASE points to a RAM address, + * CONFIG_SYS_MONITOR_BASE - sizeof (ulong) is usually a valid + * address. Better pick an address known to be invalid on your + * system and assign it to CONFIG_SYS_RESET_ADDRESS. + */ + addr = CONFIG_SYS_MONITOR_BASE - sizeof (ulong); +#endif + soft_restart(addr); + while(1); /* not reached */ +} +#endif + +/* ------------------------------------------------------------------------- */ + +/* + * For the 7400 the TB clock runs at 1/4 the cpu bus speed. + */ +#if defined(CONFIG_AMIGAONEG3SE) || defined(CONFIG_SYS_CONFIG_BUS_CLK) +unsigned long get_tbclk(void) +{ + return (gd->bus_clk / 4); +} +#else /* ! CONFIG_AMIGAONEG3SE and !CONFIG_SYS_CONFIG_BUS_CLK*/ + +unsigned long get_tbclk (void) +{ + return CONFIG_SYS_BUS_HZ / 4; +} +#endif /* CONFIG_AMIGAONEG3SE or CONFIG_SYS_CONFIG_BUS_CLK*/ +/* ------------------------------------------------------------------------- */ +#if defined(CONFIG_WATCHDOG) +#if !defined(CONFIG_PCIPPC2) && !defined(CONFIG_BAB7xx) +void +watchdog_reset(void) +{ + +} +#endif /* !CONFIG_PCIPPC2 && !CONFIG_BAB7xx */ +#endif /* CONFIG_WATCHDOG */ + +/* ------------------------------------------------------------------------- */ + +#ifdef CONFIG_OF_LIBFDT +void ft_cpu_setup(void *blob, bd_t *bd) +{ + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "timebase-frequency", bd->bi_busfreq / 4, 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "bus-frequency", bd->bi_busfreq, 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "clock-frequency", bd->bi_intfreq, 1); + + fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize); + + fdt_fixup_ethernet(blob); +} +#endif +/* ------------------------------------------------------------------------- */ diff --git a/arch/ppc/cpu/74xx_7xx/cpu_init.c b/arch/ppc/cpu/74xx_7xx/cpu_init.c new file mode 100644 index 0000000..1dd1b2c --- /dev/null +++ b/arch/ppc/cpu/74xx_7xx/cpu_init.c @@ -0,0 +1,63 @@ +/* + * (C) Copyright 2001 + * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * cpu_init.c - low level cpu init + * + * there's really nothing going on here yet. future work area? + */ + +#include <common.h> +#include <74xx_7xx.h> + +/* + * Breath some life into the CPU... + * + * there's basically nothing to do here since the memory controller + * isn't on the CPU in this case. + */ +void +cpu_init_f (void) +{ + switch (get_cpu_type()) { + case CPU_7450: + case CPU_7455: + case CPU_7457: + case CPU_7447A: + case CPU_7448: + /* enable the timebase bit in HID0 */ + set_hid0(get_hid0() | 0x4000000); + break; + default: + /* do nothing */ + break; + } +} + +/* + * initialize higher level parts of CPU like timers + */ +int cpu_init_r (void) +{ + return (0); +} diff --git a/arch/ppc/cpu/74xx_7xx/interrupts.c b/arch/ppc/cpu/74xx_7xx/interrupts.c new file mode 100644 index 0000000..0ea1aec --- /dev/null +++ b/arch/ppc/cpu/74xx_7xx/interrupts.c @@ -0,0 +1,105 @@ +/* + * (C) Copyright 2001 + * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * interrupts.c - just enough support for the decrementer/timer + */ + +#include <common.h> +#include <mpc8xx.h> +#include <mpc8xx_irq.h> +#include <asm/processor.h> +#include <commproc.h> +#include <command.h> + +int interrupt_init_cpu (unsigned *decrementer_count) +{ +#if defined(DEBUG) && !defined(CONFIG_AMIGAONEG3SE) + printf("interrupt_init: GT main cause reg: %08x:%08x\n", + GTREGREAD(LOW_INTERRUPT_CAUSE_REGISTER), + GTREGREAD(HIGH_INTERRUPT_CAUSE_REGISTER)); + printf("interrupt_init: ethernet cause regs: %08x %08x %08x\n", + GTREGREAD(ETHERNET0_INTERRUPT_CAUSE_REGISTER), + GTREGREAD(ETHERNET1_INTERRUPT_CAUSE_REGISTER), + GTREGREAD(ETHERNET2_INTERRUPT_CAUSE_REGISTER)); + printf("interrupt_init: ethernet mask regs: %08x %08x %08x\n", + GTREGREAD(ETHERNET0_INTERRUPT_MASK_REGISTER), + GTREGREAD(ETHERNET1_INTERRUPT_MASK_REGISTER), + GTREGREAD(ETHERNET2_INTERRUPT_MASK_REGISTER)); + puts("interrupt_init: setting decrementer_count\n"); +#endif + *decrementer_count = get_tbclk() / CONFIG_SYS_HZ; + + return (0); +} + +/****************************************************************************/ + +/* + * Handle external interrupts + */ +void +external_interrupt(struct pt_regs *regs) +{ + puts("external_interrupt (oops!)\n"); +} + +volatile ulong timestamp = 0; + +/* + * timer_interrupt - gets called when the decrementer overflows, + * with interrupts disabled. + * Trivial implementation - no need to be really accurate. + */ +void +timer_interrupt_cpu (struct pt_regs *regs) +{ + /* nothing to do here */ + return; +} + +/****************************************************************************/ + +/* + * Install and free a interrupt handler. + */ + +void +irq_install_handler(int vec, interrupt_handler_t *handler, void *arg) +{ + +} + +void +irq_free_handler(int vec) +{ + +} + +/****************************************************************************/ + +void +do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) +{ + puts("IRQ related functions are unimplemented currently.\n"); +} diff --git a/arch/ppc/cpu/74xx_7xx/io.S b/arch/ppc/cpu/74xx_7xx/io.S new file mode 100644 index 0000000..af2e6d1 --- /dev/null +++ b/arch/ppc/cpu/74xx_7xx/io.S @@ -0,0 +1,128 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Andreas Heppel <aheppel@sysgo.de> + * Copyright (C) 2002 Wolfgang Denk <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <ppc_asm.tmpl> + +/* ------------------------------------------------------------------------------- */ +/* Function: in8 */ +/* Description: Input 8 bits */ +/* ------------------------------------------------------------------------------- */ + .globl in8 +in8: + lbz r3,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: in16 */ +/* Description: Input 16 bits */ +/* ------------------------------------------------------------------------------- */ + .globl in16 +in16: + lhz r3,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: in16r */ +/* Description: Input 16 bits and byte reverse */ +/* ------------------------------------------------------------------------------- */ + .globl in16r +in16r: + lhbrx r3,0,r3 + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: in32 */ +/* Description: Input 32 bits */ +/* ------------------------------------------------------------------------------- */ + .globl in32 +in32: + lwz 3,0(3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: in32r */ +/* Description: Input 32 bits and byte reverse */ +/* ------------------------------------------------------------------------------- */ + .globl in32r +in32r: + lwbrx r3,0,r3 + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out8 */ +/* Description: Output 8 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out8 +out8: + stb r4,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out16 */ +/* Description: Output 16 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out16 +out16: + sth r4,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out16r */ +/* Description: Byte reverse and output 16 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out16r +out16r: + sthbrx r4,0,r3 + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out32 */ +/* Description: Output 32 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out32 +out32: + stw r4,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out32r */ +/* Description: Byte reverse and output 32 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out32r +out32r: + stwbrx r4,0,r3 + sync + blr diff --git a/arch/ppc/cpu/74xx_7xx/kgdb.S b/arch/ppc/cpu/74xx_7xx/kgdb.S new file mode 100644 index 0000000..ad487cd --- /dev/null +++ b/arch/ppc/cpu/74xx_7xx/kgdb.S @@ -0,0 +1,77 @@ +/* + * Copyright (C) 2000 Murray Jensen <Murray.Jensen@cmst.csiro.au> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307USA + */ + +#include <config.h> +#include <command.h> +#include <74xx_7xx.h> +#include <version.h> + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#if defined(CONFIG_CMD_KGDB) + + /* + * cache flushing routines for kgdb + */ + + .globl kgdb_flush_cache_all +kgdb_flush_cache_all: + lis r3,0 + addis r4,r0,0x0040 +kgdb_flush_loop: + lwz r5,0(r3) + addi r3,r3,CONFIG_SYS_CACHELINE_SIZE + cmp 0,0,r3,r4 + bne kgdb_flush_loop + SYNC + mfspr r3,1008 + ori r3,r3,0x8800 + mtspr 1008,r3 + sync + blr + + .globl kgdb_flush_cache_range +kgdb_flush_cache_range: + li r5,CONFIG_SYS_CACHELINE_SIZE-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,CONFIG_SYS_CACHELINE_SHIFT + beqlr + mtctr r4 + mr r6,r3 +1: dcbst 0,r3 + addi r3,r3,CONFIG_SYS_CACHELINE_SIZE + bdnz 1b + sync /* wait for dcbst's to get to ram */ + mtctr r4 +2: icbi 0,r6 + addi r6,r6,CONFIG_SYS_CACHELINE_SIZE + bdnz 2b + SYNC + blr + +#endif diff --git a/arch/ppc/cpu/74xx_7xx/speed.c b/arch/ppc/cpu/74xx_7xx/speed.c new file mode 100644 index 0000000..f2fdcd5 --- /dev/null +++ b/arch/ppc/cpu/74xx_7xx/speed.c @@ -0,0 +1,185 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <74xx_7xx.h> +#include <asm/processor.h> + +#ifdef CONFIG_AMIGAONEG3SE +#include "../board/MAI/AmigaOneG3SE/via686.h" +#endif + +DECLARE_GLOBAL_DATA_PTR; + +extern unsigned long get_board_bus_clk (void); + +static const int hid1_multipliers_x_10[] = { + 25, /* 0000 - 2.5x */ + 75, /* 0001 - 7.5x */ + 70, /* 0010 - 7x */ + 10, /* 0011 - bypass */ + 20, /* 0100 - 2x */ + 65, /* 0101 - 6.5x */ + 100, /* 0110 - 10x */ + 45, /* 0111 - 4.5x */ + 30, /* 1000 - 3x */ + 55, /* 1001 - 5.5x */ + 40, /* 1010 - 4x */ + 50, /* 1011 - 5x */ + 80, /* 1100 - 8x */ + 60, /* 1101 - 6x */ + 35, /* 1110 - 3.5x */ + 0 /* 1111 - off */ +}; + +/* PLL_CFG[0:4] table for cpu 7448/7447A/7455/7457 */ +static const int hid1_74xx_multipliers_x_10[] = { + 115, /* 00000 - 11.5x */ + 170, /* 00001 - 17x */ + 75, /* 00010 - 7.5x */ + 150, /* 00011 - 15x */ + 70, /* 00100 - 7x */ + 180, /* 00101 - 18x */ + 10, /* 00110 - bypass */ + 200, /* 00111 - 20x */ + 20, /* 01000 - 2x */ + 210, /* 01001 - 21x */ + 65, /* 01010 - 6.5x */ + 130, /* 01011 - 13x */ + 85, /* 01100 - 8.5x */ + 240, /* 01101 - 24x */ + 95, /* 01110 - 9.5x */ + 90, /* 01111 - 9x */ + 30, /* 10000 - 3x */ + 105, /* 10001 - 10.5x */ + 55, /* 10010 - 5.5x */ + 110, /* 10011 - 11x */ + 40, /* 10100 - 4x */ + 100, /* 10101 - 10x */ + 50, /* 10110 - 5x */ + 120, /* 10111 - 12x */ + 80, /* 11000 - 8x */ + 140, /* 11001 - 14x */ + 60, /* 11010 - 6x */ + 160, /* 11011 - 16x */ + 135, /* 11100 - 13.5x */ + 280, /* 11101 - 28x */ + 0, /* 11110 - off */ + 125 /* 11111 - 12.5x */ +}; + +static const int hid1_fx_multipliers_x_10[] = { + 00, /* 0000 - off */ + 00, /* 0001 - off */ + 10, /* 0010 - bypass */ + 10, /* 0011 - bypass */ + 20, /* 0100 - 2x */ + 25, /* 0101 - 2.5x */ + 30, /* 0110 - 3x */ + 35, /* 0111 - 3.5x */ + 40, /* 1000 - 4x */ + 45, /* 1001 - 4.5x */ + 50, /* 1010 - 5x */ + 55, /* 1011 - 5.5x */ + 60, /* 1100 - 6x */ + 65, /* 1101 - 6.5x */ + 70, /* 1110 - 7x */ + 75, /* 1111 - 7.5 */ + 80, /* 10000 - 8x */ + 85, /* 10001 - 8.5x */ + 90, /* 10010 - 9x */ + 95, /* 10011 - 9.5x */ + 100, /* 10100 - 10x */ + 110, /* 10101 - 11x */ + 120, /* 10110 - 12x */ +}; + + +/* ------------------------------------------------------------------------- */ + +/* + * Measure CPU clock speed (core clock GCLK1, GCLK2) + * + * (Approx. GCLK frequency in Hz) + */ + +int get_clocks (void) +{ + ulong clock = 0; + +#ifdef CONFIG_SYS_BUS_CLK + gd->bus_clk = CONFIG_SYS_BUS_CLK; /* bus clock is a fixed frequency */ +#else + gd->bus_clk = get_board_bus_clk (); /* bus clock is configurable */ +#endif + + /* calculate the clock frequency based upon the CPU type */ + switch (get_cpu_type()) { + case CPU_7447A: + case CPU_7448: + case CPU_7455: + case CPU_7457: + /* + * Make sure division is done before multiplication to prevent 32-bit + * arithmetic overflows which will cause a negative number + */ + clock = (gd->bus_clk / 10) * + hid1_74xx_multipliers_x_10[(get_hid1 () >> 12) & 0x1F]; + break; + + case CPU_750GX: + case CPU_750FX: + clock = (gd->bus_clk / 10) * + hid1_fx_multipliers_x_10[get_hid1 () >> 27]; + break; + + case CPU_7450: + case CPU_740: + case CPU_740P: + case CPU_745: + case CPU_750CX: + case CPU_750: + case CPU_750P: + case CPU_755: + case CPU_7400: + case CPU_7410: + /* + * Make sure division is done before multiplication to prevent 32-bit + * arithmetic overflows which will cause a negative number + */ + clock = (gd->bus_clk / 10) * + hid1_multipliers_x_10[get_hid1 () >> 28]; + break; + + case CPU_UNKNOWN: + printf ("get_gclk_freq(): unknown CPU type\n"); + clock = 0; + return (1); + } + + gd->cpu_clk = clock; + + return (0); +} + +/* ------------------------------------------------------------------------- */ diff --git a/arch/ppc/cpu/74xx_7xx/start.S b/arch/ppc/cpu/74xx_7xx/start.S new file mode 100644 index 0000000..88fdf88 --- /dev/null +++ b/arch/ppc/cpu/74xx_7xx/start.S @@ -0,0 +1,874 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2000,2001,2002 Wolfgang Denk <wd@denx.de> + * Copyright (C) 2001 Josh Huber <huber@mclx.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* U-Boot - Startup Code for PowerPC based Embedded Boards + * + * + * The processor starts at 0xfff00100 and the code is executed + * from flash. The code is organized to be at an other address + * in memory, but as long we don't jump around before relocating. + * board_init lies at a quite high address and when the cpu has + * jumped there, everything is ok. + */ +#include <config.h> +#include <74xx_7xx.h> +#include <timestamp.h> +#include <version.h> + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#if !defined(CONFIG_DB64360) && \ + !defined(CONFIG_DB64460) && \ + !defined(CONFIG_CPCI750) && \ + !defined(CONFIG_P3Mx) +#include <galileo/gt64260R.h> +#endif + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +/* We don't want the MMU yet. +*/ +#undef MSR_KERNEL +/* Machine Check and Recoverable Interr. */ +#define MSR_KERNEL ( MSR_ME | MSR_RI ) + +/* + * Set up GOT: Global Offset Table + * + * Use r12 to access the GOT + */ + START_GOT + GOT_ENTRY(_GOT2_TABLE_) + GOT_ENTRY(_FIXUP_TABLE_) + + GOT_ENTRY(_start) + GOT_ENTRY(_start_of_vectors) + GOT_ENTRY(_end_of_vectors) + GOT_ENTRY(transfer_to_handler) + + GOT_ENTRY(__init_end) + GOT_ENTRY(_end) + GOT_ENTRY(__bss_start) + END_GOT + +/* + * r3 - 1st arg to board_init(): IMMP pointer + * r4 - 2nd arg to board_init(): boot flag + */ + .text + .long 0x27051956 /* U-Boot Magic Number */ + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" + .ascii CONFIG_IDENT_STRING, "\0" + + . = EXC_OFF_SYS_RESET + .globl _start +_start: + li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */ + b boot_cold + sync + + . = EXC_OFF_SYS_RESET + 0x10 + + .globl _start_warm +_start_warm: + li r21, BOOTFLAG_WARM /* Software reboot */ + b boot_warm + sync + + /* the boot code is located below the exception table */ + + .globl _start_of_vectors +_start_of_vectors: + +/* Machine check */ + STD_EXCEPTION(0x200, MachineCheck, MachineCheckException) + +/* Data Storage exception. "Never" generated on the 860. */ + STD_EXCEPTION(0x300, DataStorage, UnknownException) + +/* Instruction Storage exception. "Never" generated on the 860. */ + STD_EXCEPTION(0x400, InstStorage, UnknownException) + +/* External Interrupt exception. */ + STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) + +/* Alignment exception. */ + . = 0x600 +Alignment: + EXCEPTION_PROLOG(SRR0, SRR1) + mfspr r4,DAR + stw r4,_DAR(r21) + mfspr r5,DSISR + stw r5,_DSISR(r21) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) + +/* Program check exception */ + . = 0x700 +ProgramCheck: + EXCEPTION_PROLOG(SRR0, SRR1) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, + MSR_KERNEL, COPY_EE) + + /* No FPU on MPC8xx. This exception is not supposed to happen. + */ + STD_EXCEPTION(0x800, FPUnavailable, UnknownException) + + /* I guess we could implement decrementer, and may have + * to someday for timekeeping. + */ + STD_EXCEPTION(0x900, Decrementer, timer_interrupt) + STD_EXCEPTION(0xa00, Trap_0a, UnknownException) + STD_EXCEPTION(0xb00, Trap_0b, UnknownException) + STD_EXCEPTION(0xc00, SystemCall, UnknownException) + STD_EXCEPTION(0xd00, SingleStep, UnknownException) + + STD_EXCEPTION(0xe00, Trap_0e, UnknownException) + STD_EXCEPTION(0xf00, Trap_0f, UnknownException) + + /* + * On the MPC8xx, this is a software emulation interrupt. It + * occurs for all unimplemented and illegal instructions. + */ + STD_EXCEPTION(0x1000, SoftEmu, SoftEmuException) + + STD_EXCEPTION(0x1100, InstructionTLBMiss, UnknownException) + STD_EXCEPTION(0x1200, DataTLBMiss, UnknownException) + STD_EXCEPTION(0x1300, InstructionTLBError, UnknownException) + STD_EXCEPTION(0x1400, DataTLBError, UnknownException) + + STD_EXCEPTION(0x1500, Reserved5, UnknownException) + STD_EXCEPTION(0x1600, Reserved6, UnknownException) + STD_EXCEPTION(0x1700, Reserved7, UnknownException) + STD_EXCEPTION(0x1800, Reserved8, UnknownException) + STD_EXCEPTION(0x1900, Reserved9, UnknownException) + STD_EXCEPTION(0x1a00, ReservedA, UnknownException) + STD_EXCEPTION(0x1b00, ReservedB, UnknownException) + + STD_EXCEPTION(0x1c00, DataBreakpoint, UnknownException) + STD_EXCEPTION(0x1d00, InstructionBreakpoint, UnknownException) + STD_EXCEPTION(0x1e00, PeripheralBreakpoint, UnknownException) + STD_EXCEPTION(0x1f00, DevPortBreakpoint, UnknownException) + + .globl _end_of_vectors +_end_of_vectors: + + . = 0x2000 + +boot_cold: +boot_warm: + /* disable everything */ + li r0, 0 + mtspr HID0, r0 + sync + mtmsr 0 + bl invalidate_bats + sync + +#ifdef CONFIG_SYS_L2 + /* init the L2 cache */ + addis r3, r0, L2_INIT@h + ori r3, r3, L2_INIT@l + sync + mtspr l2cr, r3 +#endif +#if defined(CONFIG_ALTIVEC) && defined(CONFIG_74xx) + .long 0x7e00066c + /* + * dssall instruction, gas doesn't have it yet + * ...for altivec, data stream stop all this probably + * isn't needed unless we warm (software) reboot U-Boot + */ +#endif + +#ifdef CONFIG_SYS_L2 + /* invalidate the L2 cache */ + bl l2cache_invalidate + sync +#endif +#ifdef CONFIG_SYS_BOARD_ASM_INIT + /* do early init */ + bl board_asm_init +#endif + + /* + * Calculate absolute address in FLASH and jump there + *------------------------------------------------------*/ + lis r3, CONFIG_SYS_MONITOR_BASE@h + ori r3, r3, CONFIG_SYS_MONITOR_BASE@l + addi r3, r3, in_flash - _start + EXC_OFF_SYS_RESET + mtlr r3 + blr + +in_flash: + /* let the C-code set up the rest */ + /* */ + /* Be careful to keep code relocatable ! */ + /*------------------------------------------------------*/ + + /* perform low-level init */ + /* sdram init, galileo init, etc */ + /* r3: NHR bit from HID0 */ + + /* setup the bats */ + bl setup_bats + sync + + /* + * Cache must be enabled here for stack-in-cache trick. + * This means we need to enable the BATS. + * This means: + * 1) for the EVB, original gt regs need to be mapped + * 2) need to have an IBAT for the 0xf region, + * we are running there! + * Cache should be turned on after BATs, since by default + * everything is write-through. + * The init-mem BAT can be reused after reloc. The old + * gt-regs BAT can be reused after board_init_f calls + * board_early_init_f (EVB only). + */ +#if !defined(CONFIG_BAB7xx) && !defined(CONFIG_ELPPC) && !defined(CONFIG_P3Mx) + /* enable address translation */ + bl enable_addr_trans + sync + + /* enable and invalidate the data cache */ + bl l1dcache_enable + sync +#endif +#ifdef CONFIG_SYS_INIT_RAM_LOCK + bl lock_ram_in_cache + sync +#endif + + /* set up the stack pointer in our newly created + * cache-ram (r1) */ + lis r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@h + ori r1, r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@l + + li r0, 0 /* Make room for stack frame header and */ + stwu r0, -4(r1) /* clear final stack frame so that */ + stwu r0, -4(r1) /* stack backtraces terminate cleanly */ + + GET_GOT /* initialize GOT access */ + + /* run low-level CPU init code (from Flash) */ + bl cpu_init_f + sync + + mr r3, r21 + + /* r3: BOOTFLAG */ + /* run 1st part of board init code (from Flash) */ + bl board_init_f + sync + + /* NOTREACHED */ + + .globl invalidate_bats +invalidate_bats: + /* invalidate BATs */ + mtspr IBAT0U, r0 + mtspr IBAT1U, r0 + mtspr IBAT2U, r0 + mtspr IBAT3U, r0 +#ifdef CONFIG_HIGH_BATS + mtspr IBAT4U, r0 + mtspr IBAT5U, r0 + mtspr IBAT6U, r0 + mtspr IBAT7U, r0 +#endif + isync + mtspr DBAT0U, r0 + mtspr DBAT1U, r0 + mtspr DBAT2U, r0 + mtspr DBAT3U, r0 +#ifdef CONFIG_HIGH_BATS + mtspr DBAT4U, r0 + mtspr DBAT5U, r0 + mtspr DBAT6U, r0 + mtspr DBAT7U, r0 +#endif + isync + sync + blr + + /* setup_bats - set them up to some initial state */ + .globl setup_bats +setup_bats: + addis r0, r0, 0x0000 + + /* IBAT 0 */ + addis r4, r0, CONFIG_SYS_IBAT0L@h + ori r4, r4, CONFIG_SYS_IBAT0L@l + addis r3, r0, CONFIG_SYS_IBAT0U@h + ori r3, r3, CONFIG_SYS_IBAT0U@l + mtspr IBAT0L, r4 + mtspr IBAT0U, r3 + isync + + /* DBAT 0 */ + addis r4, r0, CONFIG_SYS_DBAT0L@h + ori r4, r4, CONFIG_SYS_DBAT0L@l + addis r3, r0, CONFIG_SYS_DBAT0U@h + ori r3, r3, CONFIG_SYS_DBAT0U@l + mtspr DBAT0L, r4 + mtspr DBAT0U, r3 + isync + + /* IBAT 1 */ + addis r4, r0, CONFIG_SYS_IBAT1L@h + ori r4, r4, CONFIG_SYS_IBAT1L@l + addis r3, r0, CONFIG_SYS_IBAT1U@h + ori r3, r3, CONFIG_SYS_IBAT1U@l + mtspr IBAT1L, r4 + mtspr IBAT1U, r3 + isync + + /* DBAT 1 */ + addis r4, r0, CONFIG_SYS_DBAT1L@h + ori r4, r4, CONFIG_SYS_DBAT1L@l + addis r3, r0, CONFIG_SYS_DBAT1U@h + ori r3, r3, CONFIG_SYS_DBAT1U@l + mtspr DBAT1L, r4 + mtspr DBAT1U, r3 + isync + + /* IBAT 2 */ + addis r4, r0, CONFIG_SYS_IBAT2L@h + ori r4, r4, CONFIG_SYS_IBAT2L@l + addis r3, r0, CONFIG_SYS_IBAT2U@h + ori r3, r3, CONFIG_SYS_IBAT2U@l + mtspr IBAT2L, r4 + mtspr IBAT2U, r3 + isync + + /* DBAT 2 */ + addis r4, r0, CONFIG_SYS_DBAT2L@h + ori r4, r4, CONFIG_SYS_DBAT2L@l + addis r3, r0, CONFIG_SYS_DBAT2U@h + ori r3, r3, CONFIG_SYS_DBAT2U@l + mtspr DBAT2L, r4 + mtspr DBAT2U, r3 + isync + + /* IBAT 3 */ + addis r4, r0, CONFIG_SYS_IBAT3L@h + ori r4, r4, CONFIG_SYS_IBAT3L@l + addis r3, r0, CONFIG_SYS_IBAT3U@h + ori r3, r3, CONFIG_SYS_IBAT3U@l + mtspr IBAT3L, r4 + mtspr IBAT3U, r3 + isync + + /* DBAT 3 */ + addis r4, r0, CONFIG_SYS_DBAT3L@h + ori r4, r4, CONFIG_SYS_DBAT3L@l + addis r3, r0, CONFIG_SYS_DBAT3U@h + ori r3, r3, CONFIG_SYS_DBAT3U@l + mtspr DBAT3L, r4 + mtspr DBAT3U, r3 + isync + +#ifdef CONFIG_HIGH_BATS + /* IBAT 4 */ + addis r4, r0, CONFIG_SYS_IBAT4L@h + ori r4, r4, CONFIG_SYS_IBAT4L@l + addis r3, r0, CONFIG_SYS_IBAT4U@h + ori r3, r3, CONFIG_SYS_IBAT4U@l + mtspr IBAT4L, r4 + mtspr IBAT4U, r3 + isync + + /* DBAT 4 */ + addis r4, r0, CONFIG_SYS_DBAT4L@h + ori r4, r4, CONFIG_SYS_DBAT4L@l + addis r3, r0, CONFIG_SYS_DBAT4U@h + ori r3, r3, CONFIG_SYS_DBAT4U@l + mtspr DBAT4L, r4 + mtspr DBAT4U, r3 + isync + + /* IBAT 5 */ + addis r4, r0, CONFIG_SYS_IBAT5L@h + ori r4, r4, CONFIG_SYS_IBAT5L@l + addis r3, r0, CONFIG_SYS_IBAT5U@h + ori r3, r3, CONFIG_SYS_IBAT5U@l + mtspr IBAT5L, r4 + mtspr IBAT5U, r3 + isync + + /* DBAT 5 */ + addis r4, r0, CONFIG_SYS_DBAT5L@h + ori r4, r4, CONFIG_SYS_DBAT5L@l + addis r3, r0, CONFIG_SYS_DBAT5U@h + ori r3, r3, CONFIG_SYS_DBAT5U@l + mtspr DBAT5L, r4 + mtspr DBAT5U, r3 + isync + + /* IBAT 6 */ + addis r4, r0, CONFIG_SYS_IBAT6L@h + ori r4, r4, CONFIG_SYS_IBAT6L@l + addis r3, r0, CONFIG_SYS_IBAT6U@h + ori r3, r3, CONFIG_SYS_IBAT6U@l + mtspr IBAT6L, r4 + mtspr IBAT6U, r3 + isync + + /* DBAT 6 */ + addis r4, r0, CONFIG_SYS_DBAT6L@h + ori r4, r4, CONFIG_SYS_DBAT6L@l + addis r3, r0, CONFIG_SYS_DBAT6U@h + ori r3, r3, CONFIG_SYS_DBAT6U@l + mtspr DBAT6L, r4 + mtspr DBAT6U, r3 + isync + + /* IBAT 7 */ + addis r4, r0, CONFIG_SYS_IBAT7L@h + ori r4, r4, CONFIG_SYS_IBAT7L@l + addis r3, r0, CONFIG_SYS_IBAT7U@h + ori r3, r3, CONFIG_SYS_IBAT7U@l + mtspr IBAT7L, r4 + mtspr IBAT7U, r3 + isync + + /* DBAT 7 */ + addis r4, r0, CONFIG_SYS_DBAT7L@h + ori r4, r4, CONFIG_SYS_DBAT7L@l + addis r3, r0, CONFIG_SYS_DBAT7U@h + ori r3, r3, CONFIG_SYS_DBAT7U@l + mtspr DBAT7L, r4 + mtspr DBAT7U, r3 + isync +#endif + + /* bats are done, now invalidate the TLBs */ + + addis r3, 0, 0x0000 + addis r5, 0, 0x4 /* upper bound of 0x00040000 for 7400/750 */ + + isync + +tlblp: + tlbie r3 + sync + addi r3, r3, 0x1000 + cmp 0, 0, r3, r5 + blt tlblp + + blr + + .globl enable_addr_trans +enable_addr_trans: + /* enable address translation */ + mfmsr r5 + ori r5, r5, (MSR_IR | MSR_DR) + mtmsr r5 + isync + blr + + .globl disable_addr_trans +disable_addr_trans: + /* disable address translation */ + mflr r4 + mfmsr r3 + andi. r0, r3, (MSR_IR | MSR_DR) + beqlr + andc r3, r3, r0 + mtspr SRR0, r4 + mtspr SRR1, r3 + rfi + +/* + * This code finishes saving the registers to the exception frame + * and jumps to the appropriate handler for the exception. + * Register r21 is pointer into trap frame, r1 has new stack pointer. + */ + .globl transfer_to_handler +transfer_to_handler: + stw r22,_NIP(r21) + lis r22,MSR_POW@h + andc r23,r23,r22 + stw r23,_MSR(r21) + SAVE_GPR(7, r21) + SAVE_4GPRS(8, r21) + SAVE_8GPRS(12, r21) + SAVE_8GPRS(24, r21) + mflr r23 + andi. r24,r23,0x3f00 /* get vector offset */ + stw r24,TRAP(r21) + li r22,0 + stw r22,RESULT(r21) + mtspr SPRG2,r22 /* r1 is now kernel sp */ + lwz r24,0(r23) /* virtual address of handler */ + lwz r23,4(r23) /* where to go when done */ + mtspr SRR0,r24 + mtspr SRR1,r20 + mtlr r23 + SYNC + rfi /* jump to handler, enable MMU */ + +int_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SRR0,r2 + mtspr SRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfi + + .globl dc_read +dc_read: + blr + + .globl get_pvr +get_pvr: + mfspr r3, PVR + blr + +/*-----------------------------------------------------------------------*/ +/* + * void relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * r3 = dest + * r4 = src + * r5 = length in bytes + * r6 = cachelinesize + */ + .globl relocate_code +relocate_code: + mr r1, r3 /* Set new stack pointer */ + mr r9, r4 /* Save copy of Global Data pointer */ + mr r10, r5 /* Save copy of Destination Address */ + + GET_GOT + mr r3, r5 /* Destination Address */ + lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ + ori r4, r4, CONFIG_SYS_MONITOR_BASE@l + lwz r5, GOT(__init_end) + sub r5, r5, r4 + li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */ + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address + * + * Offset: + */ + sub r15, r10, r4 + + /* First our own GOT */ + add r12, r12, r15 + /* then the one used by the C code */ + add r30, r30, r15 + + /* + * Now relocate code + */ +#ifdef CONFIG_ECC + bl board_relocate_rom + sync + mr r3, r10 /* Destination Address */ + lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ + ori r4, r4, CONFIG_SYS_MONITOR_BASE@l + lwz r5, GOT(__init_end) + sub r5, r5, r4 + li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */ +#else + cmplw cr1,r3,r4 + addi r0,r5,3 + srwi. r0,r0,2 + beq cr1,4f /* In place copy is not necessary */ + beq 7f /* Protect against 0 count */ + mtctr r0 + bge cr1,2f + + la r8,-4(r4) + la r7,-4(r3) +1: lwzu r0,4(r8) + stwu r0,4(r7) + bdnz 1b + b 4f + +2: slwi r0,r0,2 + add r8,r4,r0 + add r7,r3,r0 +3: lwzu r0,-4(r8) + stwu r0,-4(r7) + bdnz 3b +#endif +/* + * Now flush the cache: note that we must start from a cache aligned + * address. Otherwise we might miss one cache line. + */ +4: cmpwi r6,0 + add r5,r3,r5 + beq 7f /* Always flush prefetch queue in any case */ + subi r0,r6,1 + andc r3,r3,r0 + mr r4,r3 +5: dcbst 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 5b + sync /* Wait for all dcbst to complete on bus */ + mr r4,r3 +6: icbi 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 6b +7: sync /* Wait for all icbi to complete on bus */ + isync + +/* + * We are done. Do not return, instead branch to second part of board + * initialization, now running from RAM. + */ + addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET + mtlr r0 + blr + +in_ram: +#ifdef CONFIG_ECC + bl board_init_ecc +#endif + /* + * Relocation Function, r12 point to got2+0x8000 + * + * Adjust got2 pointers, no need to check for 0, this code + * already puts a few entries in the table. + */ + li r0,__got2_entries@sectoff@l + la r3,GOT(_GOT2_TABLE_) + lwz r11,GOT(_GOT2_TABLE_) + mtctr r0 + sub r11,r3,r11 + addi r3,r3,-4 +1: lwzu r0,4(r3) + cmpwi r0,0 + beq- 2f + add r0,r0,r11 + stw r0,0(r3) +2: bdnz 1b + + /* + * Now adjust the fixups and the pointers to the fixups + * in case we need to move ourselves again. + */ + li r0,__fixup_entries@sectoff@l + lwz r3,GOT(_FIXUP_TABLE_) + cmpwi r0,0 + mtctr r0 + addi r3,r3,-4 + beq 4f +3: lwzu r4,4(r3) + lwzux r0,r4,r11 + add r0,r0,r11 + stw r10,0(r3) + stw r0,0(r4) + bdnz 3b +4: +/* clear_bss: */ + /* + * Now clear BSS segment + */ + lwz r3,GOT(__bss_start) + lwz r4,GOT(_end) + + cmplw 0, r3, r4 + beq 6f + + li r0, 0 +5: + stw r0, 0(r3) + addi r3, r3, 4 + cmplw 0, r3, r4 + bne 5b +6: + mr r3, r10 /* Destination Address */ +#if defined(CONFIG_AMIGAONEG3SE) || \ + defined(CONFIG_DB64360) || \ + defined(CONFIG_DB64460) || \ + defined(CONFIG_CPCI750) || \ + defined(CONFIG_PPMC7XX) || \ + defined(CONFIG_P3Mx) + mr r4, r9 /* Use RAM copy of the global data */ +#endif + bl after_reloc + + /* not reached - end relocate_code */ +/*-----------------------------------------------------------------------*/ + + /* + * Copy exception vector code to low memory + * + * r3: dest_addr + * r7: source address, r8: end address, r9: target address + */ + .globl trap_init +trap_init: + mflr r4 /* save link register */ + GET_GOT + lwz r7, GOT(_start) + lwz r8, GOT(_end_of_vectors) + + li r9, 0x100 /* reset vector always at 0x100 */ + + cmplw 0, r7, r8 + bgelr /* return if r7>=r8 - just in case */ +1: + lwz r0, 0(r7) + stw r0, 0(r9) + addi r7, r7, 4 + addi r9, r9, 4 + cmplw 0, r7, r8 + bne 1b + + /* + * relocate `hdlr' and `int_return' entries + */ + li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET + li r8, Alignment - _start + EXC_OFF_SYS_RESET +2: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 2b + + li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET + li r8, SystemCall - _start + EXC_OFF_SYS_RESET +3: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 3b + + li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET + li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET +4: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 4b + + /* enable execptions from RAM vectors */ + mfmsr r7 + li r8,MSR_IP + andc r7,r7,r8 + mtmsr r7 + + mtlr r4 /* restore link register */ + blr + +#ifdef CONFIG_SYS_INIT_RAM_LOCK +lock_ram_in_cache: + /* Allocate Initial RAM in data cache. + */ + lis r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@h + ori r3, r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@l + li r4, ((CONFIG_SYS_INIT_RAM_END & ~31) + \ + (CONFIG_SYS_INIT_RAM_ADDR & 31) + 31) / 32 + mtctr r4 +1: + dcbz r0, r3 + addi r3, r3, 32 + bdnz 1b + + /* Lock the data cache */ + mfspr r0, HID0 + ori r0, r0, 0x1000 + sync + mtspr HID0, r0 + sync + blr + +.globl unlock_ram_in_cache +unlock_ram_in_cache: + /* invalidate the INIT_RAM section */ + lis r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@h + ori r3, r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@l + li r4, ((CONFIG_SYS_INIT_RAM_END & ~31) + \ + (CONFIG_SYS_INIT_RAM_ADDR & 31) + 31) / 32 + mtctr r4 +1: icbi r0, r3 + addi r3, r3, 32 + bdnz 1b + sync /* Wait for all icbi to complete on bus */ + isync + + /* Unlock the data cache and invalidate it */ + mfspr r0, HID0 + li r3,0x1000 + andc r0,r0,r3 + li r3,0x0400 + or r0,r0,r3 + sync + mtspr HID0, r0 + sync + blr +#endif diff --git a/arch/ppc/cpu/74xx_7xx/traps.c b/arch/ppc/cpu/74xx_7xx/traps.c new file mode 100644 index 0000000..1d5dd01 --- /dev/null +++ b/arch/ppc/cpu/74xx_7xx/traps.c @@ -0,0 +1,252 @@ +/* + * linux/arch/ppc/kernel/traps.c + * + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * Modified by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras (paulus@cs.anu.edu.au) + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * This file handles the architecture-dependent parts of hardware exceptions + */ + +#include <common.h> +#include <command.h> +#include <kgdb.h> +#include <asm/processor.h> + +#ifdef CONFIG_AMIGAONEG3SE +DECLARE_GLOBAL_DATA_PTR; +#endif + +/* Returns 0 if exception not found and fixup otherwise. */ +extern unsigned long search_exception_table(unsigned long); + +/* THIS NEEDS CHANGING to use the board info structure. +*/ +#ifdef CONFIG_AMIGAONEG3SE +#define END_OF_MEM (gd->bd->bi_memstart + gd->bd->bi_memsize) +#else +#define END_OF_MEM 0x02000000 +#endif + +/* + * Trap & Exception support + */ + +void +print_backtrace(unsigned long *sp) +{ + int cnt = 0; + unsigned long i; + + printf("Call backtrace: "); + while (sp) { + if ((uint)sp > END_OF_MEM) + break; + + i = sp[1]; + if (cnt++ % 7 == 0) + printf("\n"); + printf("%08lX ", i); + if (cnt > 32) break; + sp = (unsigned long *)*sp; + } + printf("\n"); +} + +void +show_regs(struct pt_regs * regs) +{ + int i; + + printf("NIP: %08lX XER: %08lX LR: %08lX REGS:" + " %p TRAP: %04lx DAR: %08lX\n", + regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); + printf("MSR: %08lx EE: %01x PR: %01x FP:" + " %01x ME: %01x IR/DR: %01x%01x\n", + regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0, + regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0, + regs->msr&MSR_IR ? 1 : 0, + regs->msr&MSR_DR ? 1 : 0); + + printf("\n"); + for (i = 0; i < 32; i++) { + if ((i % 8) == 0) + { + printf("GPR%02d: ", i); + } + + printf("%08lX ", regs->gpr[i]); + if ((i % 8) == 7) + { + printf("\n"); + } + } +} + + +void +_exception(int signr, struct pt_regs *regs) +{ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Exception in kernel pc %lx signal %d",regs->nip,signr); +} + +void +MachineCheckException(struct pt_regs *regs) +{ + unsigned long fixup; + + /* Probing PCI using config cycles cause this exception + * when a device is not present. Catch it and return to + * the PCI exception handler. + */ + if ((fixup = search_exception_table(regs->nip)) != 0) { + regs->nip = fixup; + return; + } + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + printf("Machine check in kernel mode.\n"); + printf("Caused by (from msr): "); + printf("regs %p ",regs); + switch( regs->msr & 0x000F0000) { + case (0x80000000>>12): + printf("Machine check signal - probably due to mm fault\n" + "with mmu off\n"); + break; + case (0x80000000>>13): + printf("Transfer error ack signal\n"); + break; + case (0x80000000>>14): + printf("Data parity signal\n"); + break; + case (0x80000000>>15): + printf("Address parity signal\n"); + break; + default: + printf("Unknown values in msr\n"); + } + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("machine check"); +} + +void +AlignmentException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Alignment Exception"); +} + +void +ProgramCheckException(struct pt_regs *regs) +{ + unsigned char *p = regs ? (unsigned char *)(regs->nip) : NULL; + int i, j; + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + + p = (unsigned char *) ((unsigned long)p & 0xFFFFFFE0); + p -= 32; + for (i = 0; i < 256; i+=16) { + printf("%08x: ", (unsigned int)p+i); + for (j = 0; j < 16; j++) { + printf("%02x ", p[i+j]); + } + printf("\n"); + } + + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Program Check Exception"); +} + +void +SoftEmuException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Software Emulation Exception"); +} + + +void +UnknownException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", + regs->nip, regs->msr, regs->trap); + _exception(0, regs); +} + +/* Probe an address by reading. If not present, return -1, otherwise + * return 0. + */ +int +addr_probe(uint *addr) +{ +#if 0 + int retval; + + __asm__ __volatile__( \ + "1: lwz %0,0(%1)\n" \ + " eieio\n" \ + " li %0,0\n" \ + "2:\n" \ + ".section .fixup,\"ax\"\n" \ + "3: li %0,-1\n" \ + " b 2b\n" \ + ".section __ex_table,\"a\"\n" \ + " .align 2\n" \ + " .long 1b,3b\n" \ + ".text" \ + : "=r" (retval) : "r"(addr)); + + return (retval); +#endif + return 0; +} diff --git a/arch/ppc/cpu/mpc512x/Makefile b/arch/ppc/cpu/mpc512x/Makefile new file mode 100644 index 0000000..1719c66 --- /dev/null +++ b/arch/ppc/cpu/mpc512x/Makefile @@ -0,0 +1,63 @@ +# +# (C) Copyright 2007-2009 DENX Software Engineering +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +$(shell mkdir -p $(OBJTREE)/board/freescale/common) + +LIB = $(obj)lib$(CPU).a + +START = start.o +COBJS-y := cpu.o +COBJS-y += traps.o +COBJS-y += cpu_init.o +COBJS-y += fixed_sdram.o +COBJS-y += i2c.o +COBJS-y += interrupts.o +COBJS-y += iopin.o +COBJS-y += serial.o +COBJS-y += speed.o +COBJS-${CONFIG_FSL_DIU_FB} += diu.o +COBJS-${CONFIG_FSL_DIU_FB} += ../../../../board/freescale/common/fsl_diu_fb.o +COBJS-${CONFIG_FSL_DIU_FB} += ../../../../board/freescale/common/fsl_logo_bmp.o +COBJS-${CONFIG_CMD_IDE} += ide.o +COBJS-${CONFIG_IIM} += iim.o +COBJS-$(CONFIG_PCI) += pci.o + +COBJS := $(COBJS-y) +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/ppc/cpu/mpc512x/asm-offsets.h b/arch/ppc/cpu/mpc512x/asm-offsets.h new file mode 100644 index 0000000..5873fe0 --- /dev/null +++ b/arch/ppc/cpu/mpc512x/asm-offsets.h @@ -0,0 +1,15 @@ +/* + * needed for arch/ppc/cpu/mpc512x/start.S + * + * These should be auto-generated + */ +#define LPCS0AW 0x0024 +#define SRAMBAR 0x00C4 +#define SWCRR 0x0904 +#define LPC_OFFSET 0x10000 +#define CS0_CONFIG 0x00000 +#define CS_CTRL 0x00020 +#define CS_CTRL_ME 0x01000000 /* CS Master Enable bit */ + +#define EXC_OFF_SYS_RESET 0x0100 +#define _START_OFFSET EXC_OFF_SYS_RESET diff --git a/arch/ppc/cpu/mpc512x/config.mk b/arch/ppc/cpu/mpc512x/config.mk new file mode 100644 index 0000000..b6727dc --- /dev/null +++ b/arch/ppc/cpu/mpc512x/config.mk @@ -0,0 +1,29 @@ +# +# (C) Copyright 2007-2009 DENX Software Engineering +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# +PLATFORM_RELFLAGS += -fPIC -meabi + +PLATFORM_CPPFLAGS += -DCONFIG_MPC512X -DCONFIG_E300 \ + -ffixed-r2 -msoft-float -mcpu=603e + +# Use default linker script. +# A board port can override this setting in board/*/config.mk +LDSCRIPT := $(SRCTREE)/arch/ppc/cpu/mpc512x/u-boot.lds diff --git a/arch/ppc/cpu/mpc512x/cpu.c b/arch/ppc/cpu/mpc512x/cpu.c new file mode 100644 index 0000000..09cbd20 --- /dev/null +++ b/arch/ppc/cpu/mpc512x/cpu.c @@ -0,0 +1,216 @@ +/* + * (C) Copyright 2007-2010 DENX Software Engineering + * Copyright (C) 2004-2006 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * CPU specific code for the MPC512x family. + * + * Derived from the MPC83xx code. + */ + +#include <common.h> +#include <command.h> +#include <net.h> +#include <netdev.h> +#include <asm/processor.h> +#include <asm/io.h> + +#if defined(CONFIG_OF_LIBFDT) +#include <fdt_support.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +int checkcpu (void) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + ulong clock = gd->cpu_clk; + u32 pvr = get_pvr (); + u32 spridr = in_be32(&immr->sysconf.spridr); + char buf1[32], buf2[32]; + + puts ("CPU: "); + + switch (spridr & 0xffff0000) { + case SPR_5121E: + puts ("MPC5121e "); + break; + default: + printf ("Unknown part ID %08x ", spridr & 0xffff0000); + } + printf ("rev. %d.%d, Core ", SVR_MJREV (spridr), SVR_MNREV (spridr)); + + switch (pvr & 0xffff0000) { + case PVR_E300C4: + puts ("e300c4 "); + break; + default: + puts ("unknown "); + } + printf ("at %s MHz, CSB at %s MHz (RSR=0x%04lx)\n", + strmhz(buf1, clock), + strmhz(buf2, gd->csb_clk), + gd->reset_status & 0xffff); + return 0; +} + + +int +do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + ulong msr; + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + + /* Interrupts and MMU off */ + __asm__ __volatile__ ("mfmsr %0":"=r" (msr):); + + msr &= ~( MSR_EE | MSR_IR | MSR_DR); + __asm__ __volatile__ ("mtmsr %0"::"r" (msr)); + + /* + * Enable Reset Control Reg - "RSTE" is the magic word that let us go + */ + out_be32(&immap->reset.rpr, 0x52535445); + + /* Verify Reset Control Reg is enabled */ + while (!(in_be32(&immap->reset.rcer) & RCER_CRE)) + ; + + printf ("Resetting the board.\n"); + udelay(200); + + /* Perform reset */ + out_be32(&immap->reset.rcr, RCR_SWHR); + + /* Unreached... */ + return 1; +} + + +/* + * Get timebase clock frequency (like cpu_clk in Hz) + */ +unsigned long get_tbclk (void) +{ + ulong tbclk; + + tbclk = (gd->bus_clk + 3L) / 4L; + + return tbclk; +} + + +#if defined(CONFIG_WATCHDOG) +void watchdog_reset (void) +{ + int re_enable = disable_interrupts (); + + /* Reset watchdog */ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + out_be32(&immr->wdt.swsrr, 0x556c); + out_be32(&immr->wdt.swsrr, 0xaa39); + + if (re_enable) + enable_interrupts (); +} +#endif + +#ifdef CONFIG_OF_LIBFDT + +#ifdef CONFIG_OF_SUPPORT_OLD_DEVICE_TREES +/* + * fdt setup for old device trees + * fix up + * cpu clocks + * soc clocks + * ethernet addresses + */ +static void old_ft_cpu_setup(void *blob, bd_t *bd) +{ + /* + * avoid fixing up by path because that + * produces scary error messages + */ + uchar enetaddr[6]; + + /* + * old device trees have ethernet nodes with + * device_type = "network" + */ + eth_getenv_enetaddr("ethaddr", enetaddr); + do_fixup_by_prop(blob, "device_type", "network", 8, + "local-mac-address", enetaddr, 6, 0); + do_fixup_by_prop(blob, "device_type", "network", 8, + "address", enetaddr, 6, 0); + /* + * old device trees have soc nodes with + * device_type = "soc" + */ + do_fixup_by_prop_u32(blob, "device_type", "soc", 4, + "bus-frequency", bd->bi_ipsfreq, 0); +} +#endif + +static void ft_clock_setup(void *blob, bd_t *bd) +{ + char *cpu_path = "/cpus/" OF_CPU; + + /* + * fixup cpu clocks using path + */ + do_fixup_by_path_u32(blob, cpu_path, + "timebase-frequency", OF_TBCLK, 1); + do_fixup_by_path_u32(blob, cpu_path, + "bus-frequency", bd->bi_busfreq, 1); + do_fixup_by_path_u32(blob, cpu_path, + "clock-frequency", bd->bi_intfreq, 1); + /* + * fixup soc clocks using compatible + */ + do_fixup_by_compat_u32(blob, OF_SOC_COMPAT, + "bus-frequency", bd->bi_ipsfreq, 1); +} + +void ft_cpu_setup(void *blob, bd_t *bd) +{ +#ifdef CONFIG_OF_SUPPORT_OLD_DEVICE_TREES + old_ft_cpu_setup(blob, bd); +#endif + ft_clock_setup(blob, bd); +#ifdef CONFIG_HAS_ETH0 + fdt_fixup_ethernet(blob); +#endif + fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize); +} +#endif + +#ifdef CONFIG_MPC512x_FEC +/* Default initializations for FEC controllers. To override, + * create a board-specific function called: + * int board_eth_init(bd_t *bis) + */ + +int cpu_eth_init(bd_t *bis) +{ + return mpc512x_fec_initialize(bis); +} +#endif diff --git a/arch/ppc/cpu/mpc512x/cpu_init.c b/arch/ppc/cpu/mpc512x/cpu_init.c new file mode 100644 index 0000000..fe6beaf --- /dev/null +++ b/arch/ppc/cpu/mpc512x/cpu_init.c @@ -0,0 +1,92 @@ +/* + * Copyright (C) 2004-2006 Freescale Semiconductor, Inc. + * Copyright (C) 2007-2009 DENX Software Engineering + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Derived from the MPC83xx code. + * + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Set up the memory map, initialize registers, + */ +void cpu_init_f (volatile immap_t * im) +{ + u32 ips_div; + + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); + + /* Clear initial global data */ + memset ((void *) gd, 0, sizeof (gd_t)); + + /* system performance tweaking */ + +#ifdef CONFIG_SYS_ACR_PIPE_DEP + /* Arbiter pipeline depth */ + out_be32(&im->arbiter.acr, + (im->arbiter.acr & ~ACR_PIPE_DEP) | + (CONFIG_SYS_ACR_PIPE_DEP << ACR_PIPE_DEP_SHIFT) + ); +#endif + +#ifdef CONFIG_SYS_ACR_RPTCNT + /* Arbiter repeat count */ + out_be32(im->arbiter.acr, + (im->arbiter.acr & ~(ACR_RPTCNT)) | + (CONFIG_SYS_ACR_RPTCNT << ACR_RPTCNT_SHIFT) + ); +#endif + + /* RSR - Reset Status Register - clear all status */ + gd->reset_status = im->reset.rsr; + out_be32(&im->reset.rsr, ~RSR_RES); + + /* + * RMR - Reset Mode Register - enable checkstop reset + */ + out_be32(&im->reset.rmr, RMR_CSRE & (1 << RMR_CSRE_SHIFT)); + + /* Set IPS-CSB divider: IPS = 1/2 CSB */ + ips_div = in_be32(&im->clk.scfr[0]); + ips_div &= ~(SCFR1_IPS_DIV_MASK); + ips_div |= SCFR1_IPS_DIV << SCFR1_IPS_DIV_SHIFT; + out_be32(&im->clk.scfr[0], ips_div); + + /* + * Enable Time Base/Decrementer + * + * NOTICE: TB needs to be enabled as early as possible in order to + * have udelay() working; if not enabled, usually leads to a hang, like + * during FLASH chip identification etc. + */ + setbits_be32(&im->sysconf.spcr, SPCR_TBEN); +} + +int cpu_init_r (void) +{ + return 0; +} diff --git a/arch/ppc/cpu/mpc512x/diu.c b/arch/ppc/cpu/mpc512x/diu.c new file mode 100644 index 0000000..9361161 --- /dev/null +++ b/arch/ppc/cpu/mpc512x/diu.c @@ -0,0 +1,188 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * York Sun <yorksun@freescale.com> + * + * FSL DIU Framebuffer driver + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <command.h> +#include <asm/io.h> + +#include "../../../../board/freescale/common/fsl_diu_fb.h" + +#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) +#include <stdio_dev.h> +#include <video_fb.h> +#endif + +#ifdef CONFIG_FSL_DIU_LOGO_BMP +extern unsigned int FSL_Logo_BMP[]; +#else +#define FSL_Logo_BMP NULL +#endif + +static int xres, yres; + +void diu_set_pixel_clock(unsigned int pixclock) +{ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; + volatile clk512x_t *clk = &immap->clk; + volatile unsigned int *clkdvdr = &clk->scfr[0]; + unsigned long speed_ccb, temp, pixval; + + speed_ccb = get_bus_freq(0) * 4; + temp = 1000000000/pixclock; + temp *= 1000; + pixval = speed_ccb / temp; + debug("DIU pixval = %lu\n", pixval); + + /* Modify PXCLK in GUTS CLKDVDR */ + debug("DIU: Current value of CLKDVDR = 0x%08x\n", in_be32(clkdvdr)); + temp = in_be32(clkdvdr) & 0xFFFFFF00; + out_be32(clkdvdr, temp | (pixval & 0xFF)); + debug("DIU: Modified value of CLKDVDR = 0x%08x\n", in_be32(clkdvdr)); +} + +char *valid_bmp(char *addr) +{ + unsigned long h_addr; + + h_addr = simple_strtoul(addr, NULL, 16); + if (h_addr < CONFIG_SYS_FLASH_BASE || + h_addr >= (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_FLASH_SIZE - 1)) { + printf("bmp addr %lx is not a valid flash address\n", h_addr); + return 0; + } else if ((*(char *)(h_addr) != 'B') || (*(char *)(h_addr+1) != 'M')) { + printf("bmp addr is not a bmp\n"); + return 0; + } else + return (char *)h_addr; +} + +int mpc5121_diu_init(void) +{ + unsigned int pixel_format; + char *bmp = NULL; + char *bmp_env; + + xres = 1024; + yres = 768; + pixel_format = 0x88883316; + + debug("mpc5121_diu_init\n"); + bmp_env = getenv("diu_bmp_addr"); + if (bmp_env) { + bmp = valid_bmp(bmp_env); + } + if (!bmp) + bmp = (char *)FSL_Logo_BMP; + return fsl_diu_init(xres, pixel_format, 0, (unsigned char *)bmp); +} + +int mpc5121diu_init_show_bmp(cmd_tbl_t *cmdtp, + int flag, int argc, char *argv[]) +{ + unsigned int addr; + + if (argc < 2) { + cmd_usage(cmdtp); + return 1; + } + + if (!strncmp(argv[1], "init", 4)) { +#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) + fsl_diu_clear_screen(); + drv_video_init(); +#else + return mpc5121_diu_init(); +#endif + } else { + addr = simple_strtoul(argv[1], NULL, 16); + fsl_diu_clear_screen(); + fsl_diu_display_bmp((unsigned char *)addr, 0, 0, 0); + } + + return 0; +} + +U_BOOT_CMD( + diufb, CONFIG_SYS_MAXARGS, 1, mpc5121diu_init_show_bmp, + "Init or Display BMP file", + "init\n - initialize DIU\n" + "addr\n - display bmp at address 'addr'" + ); + + +#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) + +/* + * The Graphic Device + */ +GraphicDevice ctfb; +void *video_hw_init(void) +{ + GraphicDevice *pGD = (GraphicDevice *) &ctfb; + struct fb_info *info; + + if (mpc5121_diu_init() < 0) + return NULL; + + /* fill in Graphic device struct */ + sprintf(pGD->modeIdent, "%dx%dx%d %dkHz %dHz", + xres, yres, 32, 64, 60); + + pGD->frameAdrs = (unsigned int)fsl_fb_open(&info); + pGD->winSizeX = xres; + pGD->winSizeY = yres - info->logo_height; + pGD->plnSizeX = pGD->winSizeX; + pGD->plnSizeY = pGD->winSizeY; + + pGD->gdfBytesPP = 4; + pGD->gdfIndex = GDF_32BIT_X888RGB; + + pGD->isaBase = 0; + pGD->pciBase = 0; + pGD->memSize = info->screen_size - info->logo_size; + + /* Cursor Start Address */ + pGD->dprBase = 0; + pGD->vprBase = 0; + pGD->cprBase = 0; + + return (void *)pGD; +} + +/** + * Set the LUT + * + * @index: color number + * @r: red + * @b: blue + * @g: green + */ +void video_set_lut + (unsigned int index, unsigned char r, unsigned char g, unsigned char b) +{ + return; +} + +#endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */ diff --git a/arch/ppc/cpu/mpc512x/fixed_sdram.c b/arch/ppc/cpu/mpc512x/fixed_sdram.c new file mode 100644 index 0000000..442b5fc --- /dev/null +++ b/arch/ppc/cpu/mpc512x/fixed_sdram.c @@ -0,0 +1,152 @@ +/* + * (C) Copyright 2007-2009 DENX Software Engineering + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/mpc512x.h> + +/* + * MDDRC Config Runtime Settings + */ +ddr512x_config_t default_mddrc_config = { + .ddr_sys_config = CONFIG_SYS_MDDRC_SYS_CFG, + .ddr_time_config0 = CONFIG_SYS_MDDRC_TIME_CFG0, + .ddr_time_config1 = CONFIG_SYS_MDDRC_TIME_CFG1, + .ddr_time_config2 = CONFIG_SYS_MDDRC_TIME_CFG2, +}; + +u32 default_init_seq[] = { + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_PCHG_ALL, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_RFSH, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_RFSH, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_MICRON_INIT_DEV_OP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_EM2, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_PCHG_ALL, + CONFIG_SYS_DDRCMD_EM2, + CONFIG_SYS_DDRCMD_EM3, + CONFIG_SYS_DDRCMD_EN_DLL, + CONFIG_SYS_MICRON_INIT_DEV_OP, + CONFIG_SYS_DDRCMD_PCHG_ALL, + CONFIG_SYS_DDRCMD_RFSH, + CONFIG_SYS_MICRON_INIT_DEV_OP, + CONFIG_SYS_DDRCMD_OCD_DEFAULT, + CONFIG_SYS_DDRCMD_PCHG_ALL, + CONFIG_SYS_DDRCMD_NOP +}; + +/* + * fixed sdram init: + * The board doesn't use memory modules that have serial presence + * detect or similar mechanism for discovery of the DRAM settings + */ +long int fixed_sdram(ddr512x_config_t *mddrc_config, + u32 *dram_init_seq, int seq_sz) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024; + u32 msize_log2 = __ilog2(msize); + u32 i; + + /* take default settings and init sequence if necessary */ + if (mddrc_config == NULL) + mddrc_config = &default_mddrc_config; + if (dram_init_seq == NULL) { + dram_init_seq = default_init_seq; + seq_sz = sizeof(default_init_seq)/sizeof(u32); + } + + /* Initialize IO Control */ + out_be32(&im->io_ctrl.io_control_mem, IOCTRL_MUX_DDR); + + /* Initialize DDR Local Window */ + out_be32(&im->sysconf.ddrlaw.bar, CONFIG_SYS_DDR_BASE & 0xFFFFF000); + out_be32(&im->sysconf.ddrlaw.ar, msize_log2 - 1); + sync_law(&im->sysconf.ddrlaw.ar); + + /* DDR Enable */ + out_be32(&im->mddrc.ddr_sys_config, MDDRC_SYS_CFG_EN); + + /* Initialize DDR Priority Manager */ + out_be32(&im->mddrc.prioman_config1, CONFIG_SYS_MDDRCGRP_PM_CFG1); + out_be32(&im->mddrc.prioman_config2, CONFIG_SYS_MDDRCGRP_PM_CFG2); + out_be32(&im->mddrc.hiprio_config, CONFIG_SYS_MDDRCGRP_HIPRIO_CFG); + out_be32(&im->mddrc.lut_table0_main_upper, CONFIG_SYS_MDDRCGRP_LUT0_MU); + out_be32(&im->mddrc.lut_table0_main_lower, CONFIG_SYS_MDDRCGRP_LUT0_ML); + out_be32(&im->mddrc.lut_table1_main_upper, CONFIG_SYS_MDDRCGRP_LUT1_MU); + out_be32(&im->mddrc.lut_table1_main_lower, CONFIG_SYS_MDDRCGRP_LUT1_ML); + out_be32(&im->mddrc.lut_table2_main_upper, CONFIG_SYS_MDDRCGRP_LUT2_MU); + out_be32(&im->mddrc.lut_table2_main_lower, CONFIG_SYS_MDDRCGRP_LUT2_ML); + out_be32(&im->mddrc.lut_table3_main_upper, CONFIG_SYS_MDDRCGRP_LUT3_MU); + out_be32(&im->mddrc.lut_table3_main_lower, CONFIG_SYS_MDDRCGRP_LUT3_ML); + out_be32(&im->mddrc.lut_table4_main_upper, CONFIG_SYS_MDDRCGRP_LUT4_MU); + out_be32(&im->mddrc.lut_table4_main_lower, CONFIG_SYS_MDDRCGRP_LUT4_ML); + out_be32(&im->mddrc.lut_table0_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT0_AU); + out_be32(&im->mddrc.lut_table0_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT0_AL); + out_be32(&im->mddrc.lut_table1_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT1_AU); + out_be32(&im->mddrc.lut_table1_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT1_AL); + out_be32(&im->mddrc.lut_table2_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT2_AU); + out_be32(&im->mddrc.lut_table2_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT2_AL); + out_be32(&im->mddrc.lut_table3_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT3_AU); + out_be32(&im->mddrc.lut_table3_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT3_AL); + out_be32(&im->mddrc.lut_table4_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT4_AU); + out_be32(&im->mddrc.lut_table4_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT4_AL); + + /* + * Initialize MDDRC + * put MDDRC in CMD mode and + * set the max time between refreshes to 0 during init process + */ + out_be32(&im->mddrc.ddr_sys_config, + mddrc_config->ddr_sys_config | MDDRC_SYS_CFG_CMD_MASK); + out_be32(&im->mddrc.ddr_time_config0, + mddrc_config->ddr_time_config0 & MDDRC_REFRESH_ZERO_MASK); + out_be32(&im->mddrc.ddr_time_config1, + mddrc_config->ddr_time_config1); + out_be32(&im->mddrc.ddr_time_config2, + mddrc_config->ddr_time_config2); + + /* Initialize DDR with either default or supplied init sequence */ + for (i = 0; i < seq_sz; i++) + out_be32(&im->mddrc.ddr_command, dram_init_seq[i]); + + /* Start MDDRC */ + out_be32(&im->mddrc.ddr_time_config0, mddrc_config->ddr_time_config0); + out_be32(&im->mddrc.ddr_sys_config, mddrc_config->ddr_sys_config); + + return msize; +} diff --git a/arch/ppc/cpu/mpc512x/i2c.c b/arch/ppc/cpu/mpc512x/i2c.c new file mode 100644 index 0000000..e2d9097 --- /dev/null +++ b/arch/ppc/cpu/mpc512x/i2c.c @@ -0,0 +1,403 @@ +/* + * (C) Copyright 2003 - 2009 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Based on the MPC5xxx code. + */ + +#include <common.h> +#include <asm/io.h> + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_HARD_I2C + +#include <i2c.h> + +/* by default set I2C bus 0 active */ +static unsigned int bus_num __attribute__ ((section (".data"))) = 0; + +#define I2C_TIMEOUT 100 +#define I2C_RETRIES 3 + +struct mpc512x_i2c_tap { + int scl2tap; + int tap2tap; +}; + +static int mpc_reg_in(volatile u32 *reg); +static void mpc_reg_out(volatile u32 *reg, int val, int mask); +static int wait_for_bb(void); +static int wait_for_pin(int *status); +static int do_address(uchar chip, char rdwr_flag); +static int send_bytes(uchar chip, char *buf, int len); +static int receive_bytes(uchar chip, char *buf, int len); +static int mpc_get_fdr(int); + +static int mpc_reg_in (volatile u32 *reg) +{ + int ret = in_be32(reg) >> 24; + + return ret; +} + +static void mpc_reg_out (volatile u32 *reg, int val, int mask) +{ + if (!mask) { + out_be32(reg, val << 24); + } else { + clrsetbits_be32(reg, mask << 24, (val & mask) << 24); + } +} + +static int wait_for_bb (void) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; + int timeout = I2C_TIMEOUT; + int status; + + status = mpc_reg_in (®s->msr); + + while (timeout-- && (status & I2C_BB)) { + volatile int temp; + mpc_reg_out (®s->mcr, I2C_STA, I2C_STA); + temp = mpc_reg_in (®s->mdr); + mpc_reg_out (®s->mcr, 0, I2C_STA); + mpc_reg_out (®s->mcr, 0, 0); + mpc_reg_out (®s->mcr, I2C_EN, 0); + + udelay (1000); + status = mpc_reg_in (®s->msr); + } + + return (status & I2C_BB); +} + +static int wait_for_pin (int *status) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; + int timeout = I2C_TIMEOUT; + + *status = mpc_reg_in (®s->msr); + + while (timeout-- && !(*status & I2C_IF)) { + udelay (1000); + *status = mpc_reg_in (®s->msr); + } + + if (!(*status & I2C_IF)) { + return -1; + } + + mpc_reg_out (®s->msr, 0, I2C_IF); + + return 0; +} + +static int do_address (uchar chip, char rdwr_flag) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; + int status; + + chip <<= 1; + + if (rdwr_flag) { + chip |= 1; + } + + mpc_reg_out (®s->mcr, I2C_TX, I2C_TX); + mpc_reg_out (®s->mdr, chip, 0); + + if (wait_for_pin (&status)) { + return -2; + } + + if (status & I2C_RXAK) { + return -3; + } + + return 0; +} + +static int send_bytes (uchar chip, char *buf, int len) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; + int wrcount; + int status; + + for (wrcount = 0; wrcount < len; ++wrcount) { + + mpc_reg_out (®s->mdr, buf[wrcount], 0); + + if (wait_for_pin (&status)) { + break; + } + + if (status & I2C_RXAK) { + break; + } + + } + + return !(wrcount == len); +} + +static int receive_bytes (uchar chip, char *buf, int len) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; + int dummy = 1; + int rdcount = 0; + int status; + int i; + + mpc_reg_out (®s->mcr, 0, I2C_TX); + + for (i = 0; i < len; ++i) { + buf[rdcount] = mpc_reg_in (®s->mdr); + + if (dummy) { + dummy = 0; + } else { + rdcount++; + } + + if (wait_for_pin (&status)) { + return -4; + } + } + + mpc_reg_out (®s->mcr, I2C_TXAK, I2C_TXAK); + buf[rdcount++] = mpc_reg_in (®s->mdr); + + if (wait_for_pin (&status)) { + return -5; + } + + mpc_reg_out (®s->mcr, 0, I2C_TXAK); + + return 0; +} + +/**************** I2C API ****************/ + +void i2c_init (int speed, int saddr) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + int i; + + for (i = 0; i < I2C_BUS_CNT; i++){ + volatile i2c512x_dev_t *regs = &im->i2c.dev[i]; + + mpc_reg_out (®s->mcr, 0, 0); + + /* Set clock */ + mpc_reg_out (®s->mfdr, mpc_get_fdr (speed), 0); + mpc_reg_out (®s->madr, saddr << 1, 0); + + /* Enable module */ + mpc_reg_out (®s->mcr, I2C_EN, I2C_INIT_MASK); + mpc_reg_out (®s->msr, 0, I2C_IF); + } + + /* Disable interrupts */ + out_be32(&im->i2c.icr, 0); + + /* Turn off filters */ + out_be32(&im->i2c.mifr, 0); +} + +static int mpc_get_fdr (int speed) +{ + static int fdr = -1; + + if (fdr == -1) { + ulong best_speed = 0; + ulong divider; + ulong ips, scl; + ulong bestmatch = 0xffffffffUL; + int best_i = 0, best_j = 0, i, j; + int SCL_Tap[] = { 9, 10, 12, 15, 5, 6, 7, 8}; + struct mpc512x_i2c_tap scltap[] = { + {4, 1}, + {4, 2}, + {6, 4}, + {6, 8}, + {14, 16}, + {30, 32}, + {62, 64}, + {126, 128} + }; + + ips = gd->ips_clk; + for (i = 7; i >= 0; i--) { + for (j = 7; j >= 0; j--) { + scl = 2 * (scltap[j].scl2tap + + (SCL_Tap[i] - 1) * scltap[j].tap2tap + + 2); + if (ips <= speed*scl) { + if ((speed*scl - ips) < bestmatch) { + bestmatch = speed*scl - ips; + best_i = i; + best_j = j; + best_speed = ips/scl; + } + } + } + } + divider = (best_i & 3) | ((best_i & 4) << 3) | (best_j << 2); + if (gd->flags & GD_FLG_RELOC) { + fdr = divider; + } else { + debug("%ld kHz, \n", best_speed / 1000); + return divider; + } + } + + return fdr; +} + +int i2c_probe (uchar chip) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; + int i; + + for (i = 0; i < I2C_RETRIES; i++) { + mpc_reg_out (®s->mcr, I2C_STA, I2C_STA); + + if (! do_address (chip, 0)) { + mpc_reg_out (®s->mcr, 0, I2C_STA); + udelay (500); + break; + } + + mpc_reg_out (®s->mcr, 0, I2C_STA); + udelay (500); + } + + return (i == I2C_RETRIES); +} + +int i2c_read (uchar chip, uint addr, int alen, uchar *buf, int len) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; + char xaddr[4]; + int ret = -1; + + xaddr[0] = (addr >> 24) & 0xFF; + xaddr[1] = (addr >> 16) & 0xFF; + xaddr[2] = (addr >> 8) & 0xFF; + xaddr[3] = addr & 0xFF; + + if (wait_for_bb ()) { + printf ("i2c_read: bus is busy\n"); + goto Done; + } + + mpc_reg_out (®s->mcr, I2C_STA, I2C_STA); + if (do_address (chip, 0)) { + printf ("i2c_read: failed to address chip\n"); + goto Done; + } + + if (send_bytes (chip, &xaddr[4-alen], alen)) { + printf ("i2c_read: send_bytes failed\n"); + goto Done; + } + + mpc_reg_out (®s->mcr, I2C_RSTA, I2C_RSTA); + if (do_address (chip, 1)) { + printf ("i2c_read: failed to address chip\n"); + goto Done; + } + + if (receive_bytes (chip, (char *)buf, len)) { + printf ("i2c_read: receive_bytes failed\n"); + goto Done; + } + + ret = 0; +Done: + mpc_reg_out (®s->mcr, 0, I2C_STA); + return ret; +} + +int i2c_write (uchar chip, uint addr, int alen, uchar *buf, int len) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num]; + char xaddr[4]; + int ret = -1; + + xaddr[0] = (addr >> 24) & 0xFF; + xaddr[1] = (addr >> 16) & 0xFF; + xaddr[2] = (addr >> 8) & 0xFF; + xaddr[3] = addr & 0xFF; + + if (wait_for_bb ()) { + printf ("i2c_write: bus is busy\n"); + goto Done; + } + + mpc_reg_out (®s->mcr, I2C_STA, I2C_STA); + if (do_address (chip, 0)) { + printf ("i2c_write: failed to address chip\n"); + goto Done; + } + + if (send_bytes (chip, &xaddr[4-alen], alen)) { + printf ("i2c_write: send_bytes failed\n"); + goto Done; + } + + if (send_bytes (chip, (char *)buf, len)) { + printf ("i2c_write: send_bytes failed\n"); + goto Done; + } + + ret = 0; +Done: + mpc_reg_out (®s->mcr, 0, I2C_STA); + return ret; +} + +int i2c_set_bus_num (unsigned int bus) +{ + if (bus >= I2C_BUS_CNT) { + return -1; + } + bus_num = bus; + + return 0; +} + +unsigned int i2c_get_bus_num (void) +{ + return bus_num; +} + +#endif /* CONFIG_HARD_I2C */ diff --git a/arch/ppc/cpu/mpc512x/ide.c b/arch/ppc/cpu/mpc512x/ide.c new file mode 100644 index 0000000..dd6b2f4 --- /dev/null +++ b/arch/ppc/cpu/mpc512x/ide.c @@ -0,0 +1,128 @@ +/* + * (C) Copyright 2007-2009 DENX Software Engineering + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +#include <common.h> +#include <command.h> +#include <asm/io.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_IDE_RESET) + +void ide_set_reset (int idereset) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + debug ("ide_set_reset(%d)\n", idereset); + + if (idereset) { + out_be32(&im->pata.pata_ata_control, 0); + } else { + out_be32(&im->pata.pata_ata_control, FSL_ATA_CTRL_ATA_RST_B); + } + udelay(100); +} + +void init_ide_reset (void) +{ + debug ("init_ide_reset\n"); + + /* + * Clear the reset bit to reset the interface + * cf. RefMan MPC5121EE: 28.4.1 Resetting the ATA Bus + */ + ide_set_reset(1); + + /* Assert the reset bit to enable the interface */ + ide_set_reset(0); + +} + +#define CALC_TIMING(t) (t + period - 1) / period + +int ide_preinit (void) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + long t; + const struct { + short t0; + short t1; + short t2_8; + short t2_16; + short t2i; + short t4; + short t9; + short tA; + } pio_specs = { + .t0 = 600, + .t1 = 70, + .t2_8 = 290, + .t2_16 = 165, + .t2i = 0, + .t4 = 30, + .t9 = 20, + .tA = 50, + }; + union { + u32 config; + struct { + u8 field1; + u8 field2; + u8 field3; + u8 field4; + }bytes; + } cfg; + + debug ("IDE preinit using PATA peripheral at IMMR-ADDR %08x\n", + (u32)&im->pata); + + /* Set the reset bit to 1 to enable the interface */ + ide_set_reset(0); + + /* Init timings : we use PIO mode 0 timings */ + t = 1000000000 / gd->ips_clk; /* period in ns */ + cfg.bytes.field1 = 3; + cfg.bytes.field2 = 3; + cfg.bytes.field3 = (pio_specs.t1 + t) / t; + cfg.bytes.field4 = (pio_specs.t2_8 + t) / t; + + out_be32(&im->pata.pata_time1, cfg.config); + + cfg.bytes.field1 = (pio_specs.t2_8 + t) / t; + cfg.bytes.field2 = (pio_specs.tA + t) / t + 2; + cfg.bytes.field3 = 1; + cfg.bytes.field4 = (pio_specs.t4 + t) / t; + + out_be32(&im->pata.pata_time2, cfg.config); + + cfg.config = in_be32(&im->pata.pata_time3); + cfg.bytes.field1 = (pio_specs.t9 + t) / t; + + out_be32(&im->pata.pata_time3, cfg.config); + + debug ("PATA preinit complete.\n"); + + return 0; +} + +#endif /* defined(CONFIG_IDE_RESET) */ diff --git a/arch/ppc/cpu/mpc512x/iim.c b/arch/ppc/cpu/mpc512x/iim.c new file mode 100644 index 0000000..8f2eb37 --- /dev/null +++ b/arch/ppc/cpu/mpc512x/iim.c @@ -0,0 +1,394 @@ +/* + * Copyright 2008 Silicon Turnkey Express, Inc. + * Martha Marx <mmarx@silicontkx.com> + * + * ADS5121 IIM (Fusebox) Interface + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <command.h> +#include <asm/io.h> + +#ifdef CONFIG_CMD_FUSE + +DECLARE_GLOBAL_DATA_PTR; + +static char cur_bank = '1'; + +char *iim_err_msg(u32 err) +{ + static char *IIM_errs[] = { + "Parity Error in cache", + "Explicit Sense Cycle Error", + "Write to Locked Register Error", + "Read Protect Error", + "Override Protect Error", + "Write Protect Error"}; + + int i; + + if (!err) + return ""; + for (i = 1; i < 8; i++) + if (err & (1 << i)) + printf("IIM - %s\n", IIM_errs[i-1]); + return ""; +} + +int in_range(int n, int min, int max, char *err, char *usg) +{ + if (n > max || n < min) { + printf(err); + printf("Usage:\n%s\n", usg); + return 0; + } + return 1; +} + +int ads5121_fuse_read(int bank, int fstart, int num) +{ + iim512x_t *iim = &((immap_t *) CONFIG_SYS_IMMR)->iim; + u32 *iim_fb, dummy; + int f, ctr; + + out_be32(&iim->err, in_be32(&iim->err)); + if (bank == 0) + iim_fb = (u32 *)&(iim->fbac0); + else + iim_fb = (u32 *)&(iim->fbac1); +/* try a read to see if Read Protect is set */ + dummy = in_be32(&iim_fb[0]); + if (in_be32(&iim->err) & IIM_ERR_RPE) { + printf("\tRead protect fuse is set\n"); + out_be32(&iim->err, IIM_ERR_RPE); + return 0; + } + printf("Reading Bank %d cache\n", bank); + for (f = fstart, ctr = 0; num > 0; ctr++, num--, f++) { + if (ctr % 4 == 0) + printf("F%2d:", f); + printf("\t%#04x", (u8)(iim_fb[f])); + if (ctr % 4 == 3) + printf("\n"); + } + if (ctr % 4 != 0) + printf("\n"); +} + +int ads5121_fuse_override(int bank, int f, u8 val) +{ + iim512x_t *iim = &((immap_t *) CONFIG_SYS_IMMR)->iim; + u32 *iim_fb; + u32 iim_stat; + int i; + + out_be32(&iim->err, in_be32(&iim->err)); + if (bank == 0) + iim_fb = (u32 *)&(iim->fbac0); + else + iim_fb = (u32 *)&(iim->fbac1); +/* try a read to see if Read Protect is set */ + iim_stat = in_be32(&iim_fb[0]); + if (in_be32(&iim->err) & IIM_ERR_RPE) { + printf("Read protect fuse is set on bank %d;" + "Override protect may also be set\n", bank); + printf("An attempt will be made to override\n"); + out_be32(&iim->err, IIM_ERR_RPE); + } + if (iim_stat & IIM_FBAC_FBOP) { + printf("Override protect fuse is set on bank %d\n", bank); + return 1; + } + if (f > IIM_FMAX) /* reset the entire bank */ + for (i = 0; i < IIM_FMAX + 1; i++) + out_be32(&iim_fb[i], 0); + else + out_be32(&iim_fb[f], val); + return 0; +} + +int ads5121_fuse_prog(cmd_tbl_t *cmdtp, int bank, char *fuseno_bitno) +{ + iim512x_t *iim = &((immap_t *) CONFIG_SYS_IMMR)->iim; + int f, i, bitno; + u32 stat, err; + + f = simple_strtol(fuseno_bitno, NULL, 10); + if (f == 0 && fuseno_bitno[0] != '0') + f = -1; + if (!in_range(f, 0, IIM_FMAX, + "<frow> must be between 0-31\n\n", cmdtp->usage)) + return 1; + bitno = -1; + for (i = 0; i < 6; i++) { + if (fuseno_bitno[i] == '_') { + bitno = simple_strtol(&(fuseno_bitno[i+1]), NULL, 10); + if (bitno == 0 && fuseno_bitno[i+1] != '0') + bitno = -1; + break; + } + } + if (!in_range(bitno, 0, 7, "Bit number ranges from 0-7\n" + "Example of <frow_bitno>: \"18_4\" sets bit 4 of row 18\n", + cmdtp->usage)) + return 1; + out_be32(&iim->err, in_be32(&iim->err)); + out_be32(&iim->prg_p, IIM_PRG_P_SET); + out_be32(&iim->ua, IIM_SET_UA(bank, f)); + out_be32(&iim->la, IIM_SET_LA(f, bitno)); +#ifdef DEBUG + printf("Programming disabled with DEBUG defined \n"); + printf(""Set up to pro + printf("iim.ua = %x; iim.la = %x\n", iim->ua, iim->la); +#else + out_be32(&iim->fctl, IIM_FCTL_PROG_PULSE | IIM_FCTL_PROG); + do + udelay(20); + while ((stat = in_be32(&iim->stat)) & IIM_STAT_BUSY); + out_be32(&iim->prg_p, 0); + err = in_be32(&iim->err); + if (stat & IIM_STAT_PRGD) { + if (!(err & (IIM_ERR_WPE | IIM_ERR_WPE))) { + printf("Fuse is successfully set"); + if (err) + printf(" - however there are other errors"); + printf("\n"); + } + iim->stat = 0; + } + if (err) { + iim_err_msg(err); + out_be32(&iim->err, in_be32(&iim->err)); + } +#endif +} + +int ads5121_fuse_sense(int bank, int fstart, int num) +{ + iim512x_t *iim = &((immap_t *) CONFIG_SYS_IMMR)->iim; + u32 iim_fbac; + u32 stat, err, err_hold = 0; + int f, ctr; + + out_be32(&iim->err, in_be32(&iim->err)); + if (bank == 0) + iim_fbac = in_be32(&iim->fbac0); + else + iim_fbac = in_be32(&iim->fbac1); + if (iim_fbac & IIM_FBAC_FBESP) { + printf("\tSense Protect disallows this operation\n"); + out_be32(&iim->err, IIM_FBAC_FBESP); + return 1; + } + err = in_be32(&iim->err); + if (err) { + iim_err_msg(err); + err_hold |= err; + } + if (err & IIM_ERR_RPE) + printf("\tRead protect fuse is set; " + "Sense Protect may be set but will be attempted\n"); + if (err) + out_be32(&iim->err, err); + printf("Sensing fuse(s) on Bank %d\n", bank); + for (f = fstart, ctr = 0; num > 0; ctr++, f++, num--) { + out_be32(&iim->ua, IIM_SET_UA(bank, f)); + out_be32(&iim->la, IIM_SET_LA(f, 0)); + out_be32(&iim->fctl, IIM_FCTL_ESNS_N); + do + udelay(20); + while ((stat = in_be32(&iim->stat)) & IIM_STAT_BUSY); + err = in_be32(&iim->err); + if (err & IIM_ERR_SNSE) { + iim_err_msg(err); + out_be32(&iim->err, IIM_ERR_SNSE); + return 1; + } + if (stat & IIM_STAT_SNSD) { + out_be32(&iim->stat, 0); + if (ctr % 4 == 0) + printf("F%2d:", f); + printf("\t%#04x", (u8)iim->sdat); + if (ctr % 4 == 3) + printf("\n"); + } + if (err) { + err_hold |= err; + out_be32(&iim->err, err); + } + } + if (ctr % 4 != 0) + printf("\n"); + if (err_hold) + iim_err_msg(err_hold); + + return 0; +} + +int ads5121_fuse_stat(int bank) +{ + iim512x_t *iim = &((immap_t *) CONFIG_SYS_IMMR)->iim; + u32 iim_fbac; + u32 err; + + out_be32(&iim->err, in_be32(&iim->err)); + if (bank == 0) + iim_fbac = in_be32(&iim->fbac0); + else + iim_fbac = in_be32(&iim->fbac1); + err = in_be32(&iim->err); + if (err) + iim_err_msg(err); + if (err & IIM_ERR_RPE || iim_fbac & IIM_FBAC_FBRP) { + if (iim_fbac == 0) + printf("Since protection settings can't be read - " + "try sensing fuse row 0;\n"); + return 0; + } + if (iim_fbac & IIM_PROTECTION) + printf("Protection Fuses Bank %d = %#04x:\n", bank, iim_fbac); + else if (!(err & IIM_ERR_RPE)) + printf("No Protection fuses are set\n"); + if (iim_fbac & IIM_FBAC_FBWP) + printf("\tWrite Protect fuse is set\n"); + if (iim_fbac & IIM_FBAC_FBOP) + printf("\tOverride Protect fuse is set\n"); + if (iim_fbac & IIM_FBAC_FBESP) + printf("\tSense Protect Fuse is set\n"); + out_be32(&iim->err, in_be32(&iim->err)); + + return 0; +} + +int do_ads5121_fuse(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + int frow, n, v, bank; + + if (cur_bank == '0') + bank = 0; + else + bank = 1; + + switch (argc) { + case 0: + case 1: + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + case 2: + if (strncmp(argv[1], "stat", 4) == 0) + return ads5121_fuse_stat(bank); + if (strncmp(argv[1], "read", 4) == 0) + return ads5121_fuse_read(bank, 0, IIM_FMAX + 1); + if (strncmp(argv[1], "sense", 5) == 0) + return ads5121_fuse_sense(bank, 0, IIM_FMAX + 1); + if (strncmp(argv[1], "ovride", 6) == 0) + return ads5121_fuse_override(bank, IIM_FMAX + 1, 0); + if (strncmp(argv[1], "bank", 4) == 0) { + printf("Active Fuse Bank is %c\n", cur_bank); + return 0; + } + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + case 3: + if (strncmp(argv[1], "bank", 4) == 0) { + if (argv[2][0] == '0') + cur_bank = '0'; + else if (argv[2][0] == '1') + cur_bank = '1'; + else { + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + printf("Setting Active Fuse Bank to %c\n", cur_bank); + return 0; + } + if (strncmp(argv[1], "prog", 4) == 0) + return ads5121_fuse_prog(cmdtp, bank, argv[2]); + + frow = (int)simple_strtol(argv[2], NULL, 10); + if (frow == 0 && argv[2][0] != '0') + frow = -1; + if (!in_range(frow, 0, IIM_FMAX, + "<frow> must be between 0-31\n\n", cmdtp->usage)) + return 1; + if (strncmp(argv[1], "read", 4) == 0) + return ads5121_fuse_read(bank, frow, 1); + if (strncmp(argv[1], "ovride", 6) == 0) + return ads5121_fuse_override(bank, frow, 0); + if (strncmp(argv[1], "sense", 5) == 0) + return ads5121_fuse_sense(bank, frow, 1); + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + case 4: + frow = (int)simple_strtol(argv[2], NULL, 10); + if (frow == 0 && argv[2][0] != '0') + frow = -1; + if (!in_range(frow, 0, IIM_FMAX, + "<frow> must be between 0-31\n\n", cmdtp->usage)) + return 1; + if (strncmp(argv[1], "read", 4) == 0) { + n = (int)simple_strtol(argv[3], NULL, 10); + if (!in_range(frow + n, frow + 1, IIM_FMAX + 1, + "<frow>+<n> must be between 1-32\n\n", + cmdtp->usage)) + return 1; + return ads5121_fuse_read(bank, frow, n); + } + if (strncmp(argv[1], "ovride", 6) == 0) { + v = (int)simple_strtol(argv[3], NULL, 10); + return ads5121_fuse_override(bank, frow, v); + } + if (strncmp(argv[1], "sense", 5) == 0) { + n = (int)simple_strtol(argv[3], NULL, 10); + if (!in_range(frow + n, frow + 1, IIM_FMAX + 1, + "<frow>+<n> must be between 1-32\n\n", + cmdtp->usage)) + return 1; + return ads5121_fuse_sense(bank, frow, n); + } + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + default: /* at least 5 args */ + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + } +} + +U_BOOT_CMD( + fuse, CONFIG_SYS_MAXARGS, 0, do_ads5121_fuse, + " - Read, Sense, Override or Program Fuses\n", + "bank <n> - sets active Fuse Bank to 0 or 1\n" + " no args shows current active bank\n" + "fuse stat - print active fuse bank's protection status\n" + "fuse read [<frow> [<n>]] - print <n> fuse rows starting at <frow>\n" + " no args to print entire bank's fuses\n" + "fuse ovride [<frow> [<v>]]- override fuses at <frow> with <v>\n" + " no <v> defaults to 0 for the row\n" + " no args resets entire bank to 0\n" + " NOTE - settings persist until hard reset\n" + "fuse sense [<frow>] - senses current fuse at <frow>\n" + " no args for entire bank\n" + "fuse prog <frow_bit> - program fuse at row <frow>, bit <_bit>\n" + " <frow> is 0-31, <bit> is 0-7; eg. 13_2 \n" + " WARNING - this is permanent" +); +#endif /* CONFIG_CMD_FUSE */ diff --git a/arch/ppc/cpu/mpc512x/interrupts.c b/arch/ppc/cpu/mpc512x/interrupts.c new file mode 100644 index 0000000..ef7c773 --- /dev/null +++ b/arch/ppc/cpu/mpc512x/interrupts.c @@ -0,0 +1,61 @@ +/* + * (C) Copyright 2000-2007 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright 2004 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Derived from the MPC83xx code. + */ + +#include <common.h> + +DECLARE_GLOBAL_DATA_PTR; + +struct irq_action { + interrupt_handler_t *handler; + void *arg; + ulong count; +}; + +int interrupt_init_cpu (unsigned *decrementer_count) +{ + *decrementer_count = get_tbclk () / CONFIG_SYS_HZ; + + return 0; +} + +/* + * Install and free an interrupt handler. + */ +void +irq_install_handler (int irq, interrupt_handler_t * handler, void *arg) +{ +} + +void irq_free_handler (int irq) +{ +} + +void timer_interrupt_cpu (struct pt_regs *regs) +{ + /* nothing to do here */ + return; +} diff --git a/arch/ppc/cpu/mpc512x/iopin.c b/arch/ppc/cpu/mpc512x/iopin.c new file mode 100644 index 0000000..be20947 --- /dev/null +++ b/arch/ppc/cpu/mpc512x/iopin.c @@ -0,0 +1,49 @@ +/* + * (C) Copyright 2008 + * Martha J Marx, Silicon Turnkey Express, mmarx@silicontkx.com + * mpc512x I/O pin/pad initialization for the ADS5121 board + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <linux/types.h> +#include <asm/io.h> + +void iopin_initialize(iopin_t *ioregs_init, int len) +{ + short i, j, p; + u32 *reg; + immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + + reg = (u32 *)&(im->io_ctrl); + + if (sizeof(ioregs_init) == 0) + return; + + for (i = 0; i < len; i++) { + for (p = 0, j = ioregs_init[i].p_offset / sizeof(u_long); + p < ioregs_init[i].nr_pins; p++, j++) { + if (ioregs_init[i].bit_or) + setbits_be32(reg + j, ioregs_init[i].val); + else + out_be32 (reg + j, ioregs_init[i].val); + } + } + return; +} diff --git a/arch/ppc/cpu/mpc512x/pci.c b/arch/ppc/cpu/mpc512x/pci.c new file mode 100644 index 0000000..141db8b --- /dev/null +++ b/arch/ppc/cpu/mpc512x/pci.c @@ -0,0 +1,227 @@ +/* + * Copyright (C) 2009-2010 DENX Software Engineering <wd@denx.de> + * Copyright (C) Freescale Semiconductor, Inc. 2006, 2007. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +#include <asm/io.h> +#include <asm/mmu.h> +#include <asm/global_data.h> +#include <pci.h> +#if defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#include <fdt_support.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +/* System RAM mapped to PCI space */ +#define CONFIG_PCI_SYS_MEM_BUS CONFIG_SYS_SDRAM_BASE +#define CONFIG_PCI_SYS_MEM_PHYS CONFIG_SYS_SDRAM_BASE + +static struct pci_controller pci_hose; + + +/************************************************************************** + * pci_init_board() + * + */ +void +pci_init_board(void) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile law512x_t *pci_law; + volatile pot512x_t *pci_pot; + volatile pcictrl512x_t *pci_ctrl; + volatile pciconf512x_t *pci_conf; + u16 reg16; + u32 reg32; + u32 dev; + int i; + struct pci_controller *hose; + + /* Set PCI divider for 33MHz */ + reg32 = in_be32(&im->clk.scfr[0]); + reg32 &= ~(SCFR1_PCI_DIV_MASK); + reg32 |= SCFR1_PCI_DIV << SCFR1_PCI_DIV_SHIFT; + out_be32(&im->clk.scfr[0], reg32); + + clrsetbits_be32(&im->clk.scfr[0], + SCFR1_PCI_DIV_MASK, + SCFR1_PCI_DIV << SCFR1_PCI_DIV_SHIFT + ); + + pci_law = im->sysconf.pcilaw; + pci_pot = im->ios.pot; + pci_ctrl = &im->pci_ctrl; + pci_conf = &im->pci_conf; + + hose = &pci_hose; + + /* + * Release PCI RST Output signal + */ + out_be32(&pci_ctrl->gcr, 0); + udelay(2000); + out_be32(&pci_ctrl->gcr, 1); + + /* We need to wait at least a 1sec based on PCI specs */ + for (i = 0; i < 1000; i++) + udelay(1000); + + /* + * Configure PCI Local Access Windows + */ + out_be32(&pci_law[0].bar, CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR); + out_be32(&pci_law[0].ar, LAWAR_EN | LAWAR_SIZE_512M); + + out_be32(&pci_law[1].bar, CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR); + out_be32(&pci_law[1].ar, LAWAR_EN | LAWAR_SIZE_16M); + + /* + * Configure PCI Outbound Translation Windows + */ + + /* PCI mem space - prefetch */ + out_be32(&pci_pot[0].potar, + (CONFIG_SYS_PCI_MEM_BASE >> 12) & POTAR_TA_MASK); + out_be32(&pci_pot[0].pobar, + (CONFIG_SYS_PCI_MEM_PHYS >> 12) & POBAR_BA_MASK); + out_be32(&pci_pot[0].pocmr, + POCMR_EN | POCMR_PRE | POCMR_CM_256M); + + /* PCI IO space */ + out_be32(&pci_pot[1].potar, + (CONFIG_SYS_PCI_IO_BASE >> 12) & POTAR_TA_MASK); + out_be32(&pci_pot[1].pobar, + (CONFIG_SYS_PCI_IO_PHYS >> 12) & POBAR_BA_MASK); + out_be32(&pci_pot[1].pocmr, + POCMR_EN | POCMR_IO | POCMR_CM_16M); + + /* PCI mmio - non-prefetch mem space */ + out_be32(&pci_pot[2].potar, + (CONFIG_SYS_PCI_MMIO_BASE >> 12) & POTAR_TA_MASK); + out_be32(&pci_pot[2].pobar, + (CONFIG_SYS_PCI_MMIO_PHYS >> 12) & POBAR_BA_MASK); + out_be32(&pci_pot[2].pocmr, + POCMR_EN | POCMR_CM_256M); + + /* + * Configure PCI Inbound Translation Windows + */ + + /* we need RAM mapped to PCI space for the devices to + * access main memory */ + out_be32(&pci_ctrl[0].pitar1, 0x0); + out_be32(&pci_ctrl[0].pibar1, 0x0); + out_be32(&pci_ctrl[0].piebar1, 0x0); + out_be32(&pci_ctrl[0].piwar1, + PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | + PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1)); + + hose->first_busno = 0; + hose->last_busno = 0xff; + + /* PCI memory prefetch space */ + pci_set_region(hose->regions + 0, + CONFIG_SYS_PCI_MEM_BASE, + CONFIG_SYS_PCI_MEM_PHYS, + CONFIG_SYS_PCI_MEM_SIZE, + PCI_REGION_MEM|PCI_REGION_PREFETCH); + + /* PCI memory space */ + pci_set_region(hose->regions + 1, + CONFIG_SYS_PCI_MMIO_BASE, + CONFIG_SYS_PCI_MMIO_PHYS, + CONFIG_SYS_PCI_MMIO_SIZE, + PCI_REGION_MEM); + + /* PCI IO space */ + pci_set_region(hose->regions + 2, + CONFIG_SYS_PCI_IO_BASE, + CONFIG_SYS_PCI_IO_PHYS, + CONFIG_SYS_PCI_IO_SIZE, + PCI_REGION_IO); + + /* System memory space */ + pci_set_region(hose->regions + 3, + CONFIG_PCI_SYS_MEM_BUS, + CONFIG_PCI_SYS_MEM_PHYS, + gd->ram_size, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + hose->region_count = 4; + + pci_setup_indirect(hose, + (CONFIG_SYS_IMMR + 0x8300), + (CONFIG_SYS_IMMR + 0x8304)); + + pci_register_hose(hose); + + /* + * Write to Command register + */ + reg16 = 0xff; + dev = PCI_BDF(hose->first_busno, 0, 0); + pci_hose_read_config_word(hose, dev, PCI_COMMAND, ®16); + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16); + + /* + * Clear non-reserved bits in status register. + */ + pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff); + pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); + pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); + +#ifdef CONFIG_PCI_SCAN_SHOW + printf("PCI: Bus Dev VenId DevId Class Int\n"); +#endif + /* + * Hose scan. + */ + hose->last_busno = pci_hose_scan(hose); +} + +#if defined(CONFIG_OF_LIBFDT) +void ft_pci_setup(void *blob, bd_t *bd) +{ + int nodeoffset; + int tmp[2]; + const char *path; + + nodeoffset = fdt_path_offset(blob, "/aliases"); + if (nodeoffset >= 0) { + path = fdt_getprop(blob, nodeoffset, "pci", NULL); + if (path) { + tmp[0] = cpu_to_be32(pci_hose.first_busno); + tmp[1] = cpu_to_be32(pci_hose.last_busno); + do_fixup_by_path(blob, path, "bus-range", + &tmp, sizeof(tmp), 1); + + tmp[0] = cpu_to_be32(gd->pci_clk); + do_fixup_by_path(blob, path, "clock-frequency", + &tmp, sizeof(tmp[0]), 1); + } + } +} +#endif /* CONFIG_OF_LIBFDT */ diff --git a/arch/ppc/cpu/mpc512x/serial.c b/arch/ppc/cpu/mpc512x/serial.c new file mode 100644 index 0000000..ec2f41b --- /dev/null +++ b/arch/ppc/cpu/mpc512x/serial.c @@ -0,0 +1,193 @@ +/* + * (C) Copyright 2000 - 2010 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Based ont the MPC5200 PSC driver. + * Adapted for MPC512x by Jan Wrobel <wrr@semihalf.com> + */ + +/* + * Minimal serial functions needed to use one of the PSC ports + * as serial console interface. + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_PSC_CONSOLE) + +static void fifo_init (volatile psc512x_t *psc) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + + /* reset Rx & Tx fifo slice */ + out_be32(&psc->rfcmd, PSC_FIFO_RESET_SLICE); + out_be32(&psc->tfcmd, PSC_FIFO_RESET_SLICE); + + /* disable Tx & Rx FIFO interrupts */ + out_be32(&psc->rfintmask, 0); + out_be32(&psc->tfintmask, 0); + + out_be32(&psc->tfsize, CONSOLE_FIFO_TX_SIZE | (CONSOLE_FIFO_TX_ADDR << 16)); + out_be32(&psc->rfsize, CONSOLE_FIFO_RX_SIZE | (CONSOLE_FIFO_RX_ADDR << 16)); + + /* enable Tx & Rx FIFO slice */ + out_be32(&psc->rfcmd, PSC_FIFO_ENABLE_SLICE); + out_be32(&psc->tfcmd, PSC_FIFO_ENABLE_SLICE); + + out_be32(&im->fifoc.fifoc_cmd, FIFOC_DISABLE_CLOCK_GATE); + __asm__ volatile ("sync"); +} + +void serial_setbrg(void) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + unsigned long baseclk, div; + + /* calculate dividor for setting PSC CTUR and CTLR registers */ + baseclk = (gd->ips_clk + 8) / 16; + div = (baseclk + (gd->baudrate / 2)) / gd->baudrate; + + out_8(&psc->ctur, (div >> 8) & 0xff); + out_8(&psc->ctlr, div & 0xff); /* set baudrate */ +} + +int serial_init(void) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + + fifo_init (psc); + + /* set MR register to point to MR1 */ + out_8(&psc->command, PSC_SEL_MODE_REG_1); + + /* disable Tx/Rx */ + out_8(&psc->command, PSC_TX_DISABLE | PSC_RX_DISABLE); + + /* choose the prescaler by 16 for the Tx/Rx clock generation */ + out_be16(&psc->psc_clock_select, 0xdd00); + + /* switch to UART mode */ + out_be32(&psc->sicr, 0); + + /* mode register points to mr1 */ + /* configure parity, bit length and so on in mode register 1*/ + out_8(&psc->mode, PSC_MODE_8_BITS | PSC_MODE_PARNONE); + /* now, mode register points to mr2 */ + out_8(&psc->mode, PSC_MODE_1_STOPBIT); + + /* set baudrate */ + serial_setbrg(); + + /* disable all interrupts */ + out_be16(&psc->psc_imr, 0); + + /* reset and enable Rx/Tx */ + out_8(&psc->command, PSC_RST_RX); + out_8(&psc->command, PSC_RST_TX); + out_8(&psc->command, PSC_RX_ENABLE | PSC_TX_ENABLE); + + return 0; +} + +void serial_putc (const char c) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + + if (c == '\n') + serial_putc ('\r'); + + /* Wait for last character to go. */ + while (!(in_be16(&psc->psc_status) & PSC_SR_TXEMP)) + ; + + out_8(&psc->tfdata_8, c); +} + +void serial_putc_raw (const char c) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + + /* Wait for last character to go. */ + while (!(in_be16(&psc->psc_status) & PSC_SR_TXEMP)) + ; + + out_8(&psc->tfdata_8, c); +} + + +void serial_puts (const char *s) +{ + while (*s) { + serial_putc (*s++); + } +} + +int serial_getc (void) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + + /* Wait for a character to arrive. */ + while (in_be32(&psc->rfstat) & PSC_FIFO_EMPTY) + ; + + return in_8(&psc->rfdata_8); +} + +int serial_tstc (void) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + + return !(in_be32(&psc->rfstat) & PSC_FIFO_EMPTY); +} + +void serial_setrts(int s) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + + if (s) { + /* Assert RTS (become LOW) */ + out_8(&psc->op1, 0x1); + } + else { + /* Negate RTS (become HIGH) */ + out_8(&psc->op0, 0x1); + } +} + +int serial_getcts(void) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE]; + + return (in_8(&psc->ip) & 0x1) ? 0 : 1; +} +#endif /* CONFIG_PSC_CONSOLE */ diff --git a/arch/ppc/cpu/mpc512x/speed.c b/arch/ppc/cpu/mpc512x/speed.c new file mode 100644 index 0000000..ce8d094 --- /dev/null +++ b/arch/ppc/cpu/mpc512x/speed.c @@ -0,0 +1,156 @@ +/* + * (C) Copyright 2000-2009 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 2004-2006 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Based on the MPC83xx code. + */ + +#include <common.h> +#include <command.h> +#include <asm/io.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +static int spmf_mult[] = { + 68, 1, 12, 16, + 20, 24, 28, 32, + 36, 40, 44, 48, + 52, 56, 60, 64 +}; + +static int cpmf_mult[][2] = { + {0, 1}, {0, 1}, /* 0 and 1 are not valid */ + {1, 1}, {3, 2}, + {2, 1}, {5, 2}, + {3, 1}, {7, 2}, + {0, 1}, {0, 1}, /* and all above 7 are not valid too */ + {0, 1}, {0, 1}, + {0, 1}, {0, 1}, + {0, 1}, {0, 1} +}; + +static int sys_dividors[][2] = { + {2, 1}, {5, 2}, {3, 1}, {7, 2}, {4, 1}, + {9, 2}, {5, 1}, {7, 1}, {6, 1}, {8, 1}, + {9, 1}, {11, 1}, {10, 1}, {12, 1}, {13, 1}, + {15, 1}, {14, 1}, {16, 1}, {17, 1}, {19, 1}, + {18, 1}, {20, 1}, {21, 1}, {23, 1}, {22, 1}, + {24, 1}, {25, 1}, {27, 1}, {26, 1}, {28, 1}, + {29, 1}, {31, 1}, {30, 1}, {32, 1}, {33, 1} +}; + +int get_clocks (void) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + u8 spmf; + u8 cpmf; + u8 sys_div; + u8 ips_div; + u8 pci_div; + u32 ref_clk = CONFIG_SYS_MPC512X_CLKIN; + u32 spll; + u32 sys_clk; + u32 core_clk; + u32 csb_clk; + u32 ips_clk; + u32 pci_clk; + u32 reg; + + reg = in_be32(&im->sysconf.immrbar); + if ((reg & IMMRBAR_BASE_ADDR) != (u32) im) + return -1; + + reg = in_be32(&im->clk.spmr); + spmf = (reg & SPMR_SPMF) >> SPMR_SPMF_SHIFT; + spll = ref_clk * spmf_mult[spmf]; + + reg = in_be32(&im->clk.scfr[1]); + sys_div = (reg & SCFR2_SYS_DIV) >> SCFR2_SYS_DIV_SHIFT; + sys_clk = (spll * sys_dividors[sys_div][1]) / sys_dividors[sys_div][0]; + + csb_clk = sys_clk / 2; + + reg = in_be32(&im->clk.spmr); + cpmf = (reg & SPMR_CPMF) >> SPMR_CPMF_SHIFT; + core_clk = (csb_clk * cpmf_mult[cpmf][0]) / cpmf_mult[cpmf][1]; + + reg = in_be32(&im->clk.scfr[0]); + ips_div = (reg & SCFR1_IPS_DIV_MASK) >> SCFR1_IPS_DIV_SHIFT; + if (ips_div != 0) { + ips_clk = csb_clk / ips_div; + } else { + /* in case we cannot get a sane IPS divisor, fail gracefully */ + ips_clk = 0; + } + + reg = in_be32(&im->clk.scfr[0]); + pci_div = (reg & SCFR1_PCI_DIV_MASK) >> SCFR1_PCI_DIV_SHIFT; + if (pci_div != 0) { + pci_clk = csb_clk / pci_div; + } else { + /* in case we cannot get a sane IPS divisor, fail gracefully */ + pci_clk = 333333; + } + + gd->ips_clk = ips_clk; + gd->pci_clk = pci_clk; + gd->csb_clk = csb_clk; + gd->cpu_clk = core_clk; + gd->bus_clk = csb_clk; + return 0; + +} + +/******************************************** + * get_bus_freq + * return system bus freq in Hz + *********************************************/ +ulong get_bus_freq (ulong dummy) +{ + return gd->csb_clk; +} + +int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + char buf[32]; + + printf("Clock configuration:\n"); + printf(" CPU: %-4s MHz\n", strmhz(buf, gd->cpu_clk)); + printf(" Coherent System Bus: %-4s MHz\n", strmhz(buf, gd->csb_clk)); + printf(" IPS Bus: %-4s MHz\n", strmhz(buf, gd->ips_clk)); + printf(" PCI: %-4s MHz\n", strmhz(buf, gd->pci_clk)); + printf(" DDR: %-4s MHz\n", strmhz(buf, 2*gd->csb_clk)); + return 0; +} + +U_BOOT_CMD(clocks, 1, 0, do_clocks, + "print clock configuration", + " clocks" +); + +int prt_mpc512x_clks (void) +{ + do_clocks (NULL, 0, 0, NULL); + return (0); +} diff --git a/arch/ppc/cpu/mpc512x/start.S b/arch/ppc/cpu/mpc512x/start.S new file mode 100644 index 0000000..d26b617 --- /dev/null +++ b/arch/ppc/cpu/mpc512x/start.S @@ -0,0 +1,711 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2000-2009 Wolfgang Denk <wd@denx.de> + * Copyright Freescale Semiconductor, Inc. 2004, 2006. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Based on the MPC83xx code. + */ + +/* + * U-Boot - Startup Code for MPC512x based Embedded Boards + */ + +#include <config.h> +#include <timestamp.h> +#include <version.h> + +#define CONFIG_521X 1 /* needed for Linux kernel header files*/ + +#include <asm/immap_512x.h> +#include "asm-offsets.h" + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "MPC512X" +#endif + +/* + * Floating Point enable, Machine Check and Recoverable Interr. + */ +#undef MSR_KERNEL +#ifdef DEBUG +#define MSR_KERNEL (MSR_FP|MSR_RI) +#else +#define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI) +#endif + +/* Macros for manipulating CSx_START/STOP */ +#define START_REG(start) ((start) >> 16) +#define STOP_REG(start, size) (((start) + (size) - 1) >> 16) + +/* + * Set up GOT: Global Offset Table + * + * Use r12 to access the GOT + */ + START_GOT + GOT_ENTRY(_GOT2_TABLE_) + GOT_ENTRY(_FIXUP_TABLE_) + + GOT_ENTRY(_start) + GOT_ENTRY(_start_of_vectors) + GOT_ENTRY(_end_of_vectors) + GOT_ENTRY(transfer_to_handler) + + GOT_ENTRY(__init_end) + GOT_ENTRY(_end) + GOT_ENTRY(__bss_start) + END_GOT + +/* + * Magic number and version string + */ + .long 0x27051956 /* U-Boot Magic Number */ + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" + .ascii " ", CONFIG_IDENT_STRING, "\0" + +/* + * Vector Table + */ + .text + . = EXC_OFF_SYS_RESET + + .globl _start + /* Start from here after reset/power on */ +_start: + li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */ + b boot_cold + + .globl _start_of_vectors +_start_of_vectors: + +/* Machine check */ + STD_EXCEPTION(0x200, MachineCheck, MachineCheckException) + +/* Data Storage exception. */ + STD_EXCEPTION(0x300, DataStorage, UnknownException) + +/* Instruction Storage exception. */ + STD_EXCEPTION(0x400, InstStorage, UnknownException) + +/* External Interrupt exception. */ + STD_EXCEPTION(0x500, ExtInterrupt, UnknownException) + +/* Alignment exception. */ + . = 0x600 +Alignment: + EXCEPTION_PROLOG(SRR0, SRR1) + mfspr r4,DAR + stw r4,_DAR(r21) + mfspr r5,DSISR + stw r5,_DSISR(r21) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) + +/* Program check exception */ + . = 0x700 +ProgramCheck: + EXCEPTION_PROLOG(SRR0, SRR1) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, + MSR_KERNEL, COPY_EE) + +/* Floating Point Unit unavailable exception */ + STD_EXCEPTION(0x800, FPUnavailable, UnknownException) + +/* Decrementer */ + STD_EXCEPTION(0x900, Decrementer, timer_interrupt) + +/* Critical interrupt */ + STD_EXCEPTION(0xa00, Critical, UnknownException) + +/* System Call */ + STD_EXCEPTION(0xc00, SystemCall, UnknownException) + +/* Trace interrupt */ + STD_EXCEPTION(0xd00, Trace, UnknownException) + +/* Performance Monitor interrupt */ + STD_EXCEPTION(0xf00, PerfMon, UnknownException) + +/* Intruction Translation Miss */ + STD_EXCEPTION(0x1000, InstructionTLBMiss, UnknownException) + +/* Data Load Translation Miss */ + STD_EXCEPTION(0x1100, DataLoadTLBMiss, UnknownException) + +/* Data Store Translation Miss */ + STD_EXCEPTION(0x1200, DataStoreTLBMiss, UnknownException) + +/* Instruction Address Breakpoint */ + STD_EXCEPTION(0x1300, InstructionAddrBreakpoint, DebugException) + +/* System Management interrupt */ + STD_EXCEPTION(0x1400, SystemMgmtInterrupt, UnknownException) + + .globl _end_of_vectors +_end_of_vectors: + + . = 0x3000 +boot_cold: + /* Save msr contents */ + mfmsr r5 + + /* Set IMMR area to our preferred location */ + lis r4, CONFIG_DEFAULT_IMMR@h + lis r3, CONFIG_SYS_IMMR@h + ori r3, r3, CONFIG_SYS_IMMR@l + stw r3, IMMRBAR(r4) + mtspr MBAR, r3 /* IMMRBAR is mirrored into the MBAR SPR (311) */ + + /* Initialise the machine */ + bl cpu_early_init + + /* + * Set up Local Access Windows: + * + * 1) Boot/CS0 (boot FLASH) + * 2) On-chip SRAM (initial stack purposes) + */ + + /* Boot CS/CS0 window range */ + lis r3, CONFIG_SYS_IMMR@h + ori r3, r3, CONFIG_SYS_IMMR@l + + lis r4, START_REG(CONFIG_SYS_FLASH_BASE) + ori r4, r4, STOP_REG(CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE) + stw r4, LPCS0AW(r3) + + /* + * The SRAM window has a fixed size (256K), so only the start address + * is necessary + */ + lis r4, START_REG(CONFIG_SYS_SRAM_BASE) & 0xff00 + stw r4, SRAMBAR(r3) + + /* + * According to MPC5121e RM, configuring local access windows should + * be followed by a dummy read of the config register that was + * modified last and an isync + */ + lwz r4, SRAMBAR(r3) + isync + + /* + * Set configuration of the Boot/CS0, the SRAM window does not have a + * config register so no params can be set for it + */ + lis r3, (CONFIG_SYS_IMMR + LPC_OFFSET)@h + ori r3, r3, (CONFIG_SYS_IMMR + LPC_OFFSET)@l + + lis r4, CONFIG_SYS_CS0_CFG@h + ori r4, r4, CONFIG_SYS_CS0_CFG@l + stw r4, CS0_CONFIG(r3) + + /* Master enable all CS's */ + lis r4, CS_CTRL_ME@h + ori r4, r4, CS_CTRL_ME@l + stw r4, CS_CTRL(r3) + + lis r4, (CONFIG_SYS_MONITOR_BASE)@h + ori r4, r4, (CONFIG_SYS_MONITOR_BASE)@l + addi r5, r4, in_flash - _start + EXC_OFF_SYS_RESET + mtlr r5 + blr + +in_flash: + lis r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@h + ori r1, r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@l + + li r0, 0 /* Make room for stack frame header and */ + stwu r0, -4(r1) /* clear final stack frame so that */ + stwu r0, -4(r1) /* stack backtraces terminate cleanly */ + + /* let the C-code set up the rest */ + /* */ + /* Be careful to keep code relocatable & stack humble */ + /*------------------------------------------------------*/ + + GET_GOT /* initialize GOT access */ + + /* r3: IMMR */ + lis r3, CONFIG_SYS_IMMR@h + /* run low-level CPU init code (in Flash) */ + bl cpu_init_f + + /* r3: BOOTFLAG */ + mr r3, r21 + /* run 1st part of board init code (in Flash) */ + bl board_init_f + + /* NOTREACHED - board_init_f() does not return */ + +/* + * This code finishes saving the registers to the exception frame + * and jumps to the appropriate handler for the exception. + * Register r21 is pointer into trap frame, r1 has new stack pointer. + */ + .globl transfer_to_handler +transfer_to_handler: + stw r22,_NIP(r21) + lis r22,MSR_POW@h + andc r23,r23,r22 + stw r23,_MSR(r21) + SAVE_GPR(7, r21) + SAVE_4GPRS(8, r21) + SAVE_8GPRS(12, r21) + SAVE_8GPRS(24, r21) + mflr r23 + andi. r24,r23,0x3f00 /* get vector offset */ + stw r24,TRAP(r21) + li r22,0 + stw r22,RESULT(r21) + lwz r24,0(r23) /* virtual address of handler */ + lwz r23,4(r23) /* where to go when done */ + mtspr SRR0,r24 + mtspr SRR1,r20 + mtlr r23 + SYNC + rfi /* jump to handler, enable MMU */ + +int_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SRR0,r2 + mtspr SRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfi + +/* + * This code initialises the machine, it expects original MSR contents to be in r5. + */ +cpu_early_init: + /* Initialize machine status; enable machine check interrupt */ + /*-----------------------------------------------------------*/ + + li r3, MSR_KERNEL /* Set ME and RI flags */ + rlwimi r3, r5, 0, 25, 25 /* preserve IP bit */ +#ifdef DEBUG + rlwimi r3, r5, 0, 21, 22 /* debugger might set SE, BE bits */ +#endif + mtmsr r3 + SYNC + mtspr SRR1, r3 /* Mirror current MSR state in SRR1 */ + + lis r3, CONFIG_SYS_IMMR@h + +#if defined(CONFIG_WATCHDOG) + /* Initialise the watchdog and reset it */ + /*--------------------------------------*/ + lis r4, CONFIG_SYS_WATCHDOG_VALUE + ori r4, r4, (SWCRR_SWEN | SWCRR_SWRI | SWCRR_SWPR) + stw r4, SWCRR(r3) + + /* reset */ + li r4, 0x556C + sth r4, SWSRR@l(r3) + li r4, 0x0 + ori r4, r4, 0xAA39 + sth r4, SWSRR@l(r3) +#else + /* Disable the watchdog */ + /*----------------------*/ + lwz r4, SWCRR(r3) + /* + * Check to see if it's enabled for disabling: once disabled by s/w + * it's not possible to re-enable it + */ + andi. r4, r4, 0x4 + beq 1f + xor r4, r4, r4 + stw r4, SWCRR(r3) +1: +#endif /* CONFIG_WATCHDOG */ + + /* Initialize the Hardware Implementation-dependent Registers */ + /* HID0 also contains cache control */ + /*------------------------------------------------------*/ + lis r3, CONFIG_SYS_HID0_INIT@h + ori r3, r3, CONFIG_SYS_HID0_INIT@l + SYNC + mtspr HID0, r3 + + lis r3, CONFIG_SYS_HID0_FINAL@h + ori r3, r3, CONFIG_SYS_HID0_FINAL@l + SYNC + mtspr HID0, r3 + + lis r3, CONFIG_SYS_HID2@h + ori r3, r3, CONFIG_SYS_HID2@l + SYNC + mtspr HID2, r3 + sync + blr + + +/* Cache functions. + * + * Note: requires that all cache bits in + * HID0 are in the low half word. + */ + .globl icache_enable +icache_enable: + mfspr r3, HID0 + ori r3, r3, HID0_ICE + lis r4, 0 + ori r4, r4, HID0_ILOCK + andc r3, r3, r4 + ori r4, r3, HID0_ICFI + isync + mtspr HID0, r4 /* sets enable and invalidate, clears lock */ + isync + mtspr HID0, r3 /* clears invalidate */ + blr + + .globl icache_disable +icache_disable: + mfspr r3, HID0 + lis r4, 0 + ori r4, r4, HID0_ICE|HID0_ILOCK + andc r3, r3, r4 + ori r4, r3, HID0_ICFI + isync + mtspr HID0, r4 /* sets invalidate, clears enable and lock*/ + isync + mtspr HID0, r3 /* clears invalidate */ + blr + + .globl icache_status +icache_status: + mfspr r3, HID0 + rlwinm r3, r3, (31 - HID0_ICE_SHIFT + 1), 31, 31 + blr + + .globl dcache_enable +dcache_enable: + mfspr r3, HID0 + li r5, HID0_DCFI|HID0_DLOCK + andc r3, r3, r5 + mtspr HID0, r3 /* no invalidate, unlock */ + ori r3, r3, HID0_DCE + ori r5, r3, HID0_DCFI + mtspr HID0, r5 /* enable + invalidate */ + mtspr HID0, r3 /* enable */ + sync + blr + + .globl dcache_disable +dcache_disable: + mfspr r3, HID0 + lis r4, 0 + ori r4, r4, HID0_DCE|HID0_DLOCK + andc r3, r3, r4 + ori r4, r3, HID0_DCI + sync + mtspr HID0, r4 /* sets invalidate, clears enable and lock */ + sync + mtspr HID0, r3 /* clears invalidate */ + blr + + .globl dcache_status +dcache_status: + mfspr r3, HID0 + rlwinm r3, r3, (31 - HID0_DCE_SHIFT + 1), 31, 31 + blr + + .globl get_pvr +get_pvr: + mfspr r3, PVR + blr + +/*-------------------------------------------------------------------*/ + +/* + * void relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * r3 = dest + * r4 = src + * r5 = length in bytes + * r6 = cachelinesize + */ + .globl relocate_code +relocate_code: + mr r1, r3 /* Set new stack pointer */ + mr r9, r4 /* Save copy of Global Data pointer */ + mr r10, r5 /* Save copy of Destination Address */ + + GET_GOT + mr r3, r5 /* Destination Address */ + lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ + ori r4, r4, CONFIG_SYS_MONITOR_BASE@l + lwz r5, GOT(__init_end) + sub r5, r5, r4 + li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */ + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + * + Destination Address + * + * Offset: + */ + sub r15, r10, r4 + + /* First our own GOT */ + add r12, r12, r15 + /* then the one used by the C code */ + add r30, r30, r15 + + /* + * Now relocate code + */ + cmplw cr1,r3,r4 + addi r0,r5,3 + srwi. r0,r0,2 + beq cr1,4f /* In place copy is not necessary */ + beq 7f /* Protect against 0 count */ + mtctr r0 + bge cr1,2f + la r8,-4(r4) + la r7,-4(r3) + + /* copy */ +1: lwzu r0,4(r8) + stwu r0,4(r7) + bdnz 1b + + addi r0,r5,3 + srwi. r0,r0,2 + mtctr r0 + la r8,-4(r4) + la r7,-4(r3) + + /* and compare */ +20: lwzu r20,4(r8) + lwzu r21,4(r7) + xor. r22, r20, r21 + bne 30f + bdnz 20b + b 4f + + /* compare failed */ +30: li r3, 0 + blr + +2: slwi r0,r0,2 /* re copy in reverse order ... y do we needed it? */ + add r8,r4,r0 + add r7,r3,r0 +3: lwzu r0,-4(r8) + stwu r0,-4(r7) + bdnz 3b + +/* + * Now flush the cache: note that we must start from a cache aligned + * address. Otherwise we might miss one cache line. + */ +4: cmpwi r6,0 + add r5,r3,r5 + beq 7f /* Always flush prefetch queue in any case */ + subi r0,r6,1 + andc r3,r3,r0 + mr r4,r3 +5: dcbst 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 5b + sync /* Wait for all dcbst to complete on bus */ + mr r4,r3 +6: icbi 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 6b +7: sync /* Wait for all icbi to complete on bus */ + isync + +/* + * We are done. Do not return, instead branch to second part of board + * initialization, now running from RAM. + */ + addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET + mtlr r0 + blr + +in_ram: + /* + * Relocation Function, r12 point to got2+0x8000 + * + * Adjust got2 pointers, no need to check for 0, this code + * already puts a few entries in the table. + */ + li r0,__got2_entries@sectoff@l + la r3,GOT(_GOT2_TABLE_) + lwz r11,GOT(_GOT2_TABLE_) + mtctr r0 + sub r11,r3,r11 + addi r3,r3,-4 +1: lwzu r0,4(r3) + cmpwi r0,0 + beq- 2f + add r0,r0,r11 + stw r0,0(r3) +2: bdnz 1b + + /* + * Now adjust the fixups and the pointers to the fixups + * in case we need to move ourselves again. + */ + li r0,__fixup_entries@sectoff@l + lwz r3,GOT(_FIXUP_TABLE_) + cmpwi r0,0 + mtctr r0 + addi r3,r3,-4 + beq 4f +3: lwzu r4,4(r3) + lwzux r0,r4,r11 + add r0,r0,r11 + stw r10,0(r3) + stw r0,0(r4) + bdnz 3b +4: +clear_bss: + /* + * Now clear BSS segment + */ + lwz r3,GOT(__bss_start) + lwz r4,GOT(_end) + + cmplw 0, r3, r4 + beq 6f + + li r0, 0 +5: + stw r0, 0(r3) + addi r3, r3, 4 + cmplw 0, r3, r4 + bne 5b +6: + mr r3, r9 /* Global Data pointer */ + mr r4, r10 /* Destination Address */ + bl board_init_r + + /* + * Copy exception vector code to low memory + * + * r3: dest_addr + * r7: source address, r8: end address, r9: target address + */ + .globl trap_init +trap_init: + mflr r4 /* save link register */ + GET_GOT + lwz r7, GOT(_start) + lwz r8, GOT(_end_of_vectors) + + li r9, 0x100 /* reset vector at 0x100 */ + + cmplw 0, r7, r8 + bgelr /* return if r7>=r8 - just in case */ +1: + lwz r0, 0(r7) + stw r0, 0(r9) + addi r7, r7, 4 + addi r9, r9, 4 + cmplw 0, r7, r8 + bne 1b + + /* + * relocate `hdlr' and `int_return' entries + */ + li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET + li r8, Alignment - _start + EXC_OFF_SYS_RESET +2: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 2b + + li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET + li r8, SystemCall - _start + EXC_OFF_SYS_RESET +3: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 3b + + li r7, .L_Trace - _start + EXC_OFF_SYS_RESET + li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET +4: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 4b + + mfmsr r3 /* now that the vectors have */ + lis r7, MSR_IP@h /* relocated into low memory */ + ori r7, r7, MSR_IP@l /* MSR[IP] can be turned off */ + andc r3, r3, r7 /* (if it was on) */ + SYNC /* Some chip revs need this... */ + mtmsr r3 + SYNC + + mtlr r4 /* restore link register */ + blr diff --git a/arch/ppc/cpu/mpc512x/traps.c b/arch/ppc/cpu/mpc512x/traps.c new file mode 100644 index 0000000..786f4a5 --- /dev/null +++ b/arch/ppc/cpu/mpc512x/traps.c @@ -0,0 +1,212 @@ +/* + * (C) Copyright 2000 - 2007 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Derived from the MPC83xx code. + */ + +/* + * This file handles the architecture-dependent parts of hardware + * exceptions + */ + +#include <common.h> +#include <kgdb.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +extern unsigned long search_exception_table(unsigned long); + +/* + * End of addressable memory. This may be less than the actual + * amount of memory on the system if we're unable to keep all + * the memory mapped in. + */ +extern ulong get_effective_memsize(void); +#define END_OF_MEM (gd->bd->bi_memstart + get_effective_memsize()) + +/* + * Trap & Exception support + */ + +void +print_backtrace (unsigned long *sp) +{ + int cnt = 0; + unsigned long i; + + puts ("Call backtrace: "); + while (sp) { + if ((uint)sp > END_OF_MEM) + break; + + i = sp[1]; + if (cnt++ % 7 == 0) + putc ('\n'); + printf ("%08lX ", i); + if (cnt > 32) break; + sp = (unsigned long *) *sp; + } + putc ('\n'); +} + +void show_regs (struct pt_regs * regs) +{ + int i; + + printf ("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n", + regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); + printf ("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n", + regs->msr, regs->msr & MSR_EE ? 1 : 0, regs->msr & MSR_PR ? 1 : 0, + regs->msr & MSR_FP ? 1 : 0,regs->msr & MSR_ME ? 1 : 0, + regs->msr & MSR_IR ? 1 : 0, + regs->msr & MSR_DR ? 1 : 0); + + putc ('\n'); + for (i = 0; i < 32; i++) { + if ((i % 8) == 0) { + printf ("GPR%02d: ", i); + } + + printf ("%08lX ", regs->gpr[i]); + if ((i % 8) == 7) { + putc ('\n'); + } + } +} + + +void +_exception (int signr, struct pt_regs *regs) +{ + show_regs (regs); + print_backtrace ((unsigned long *)regs->gpr[1]); + panic ("Exception at pc %lx signal %d", regs->nip,signr); +} + + +void +MachineCheckException (struct pt_regs *regs) +{ + unsigned long fixup; + + if ((fixup = search_exception_table (regs->nip)) != 0) { + regs->nip = fixup; + return; + } + +#ifdef CONFIG_CMD_KGDB + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + puts ("Machine check.\nCaused by (from msr): "); + printf ("regs %p ",regs); + switch (regs->msr & 0x00FF0000) { + case (0x80000000 >> 10): + puts ("Instruction cache parity signal\n"); + break; + case (0x80000000 >> 11): + puts ("Data cache parity signal\n"); + break; + case (0x80000000 >> 12): + puts ("Machine check signal\n"); + break; + case (0x80000000 >> 13): + puts ("Transfer error ack signal\n"); + break; + case (0x80000000 >> 14): + puts ("Data parity signal\n"); + break; + case (0x80000000 >> 15): + puts ("Address parity signal\n"); + break; + default: + puts ("Unknown values in msr\n"); + } + show_regs (regs); + print_backtrace ((unsigned long *)regs->gpr[1]); + + panic ("machine check"); +} + +void +AlignmentException (struct pt_regs *regs) +{ +#ifdef CONFIG_CMD_KGDB + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs (regs); + print_backtrace ((unsigned long *)regs->gpr[1]); + panic ("Alignment Exception"); +} + +void +ProgramCheckException (struct pt_regs *regs) +{ +#ifdef CONFIG_CMD_KGDB + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs (regs); + print_backtrace ((unsigned long *)regs->gpr[1]); + panic ("Program Check Exception"); +} + +void +SoftEmuException (struct pt_regs *regs) +{ +#ifdef CONFIG_CMD_KGDB + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs (regs); + print_backtrace ((unsigned long *)regs->gpr[1]); + panic ("Software Emulation Exception"); +} + + +void +UnknownException (struct pt_regs *regs) +{ +#ifdef CONFIG_CMD_KGDB + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + printf ("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", + regs->nip, regs->msr, regs->trap); + _exception (0, regs); +} + +#ifdef CONFIG_CMD_BEDBUG +extern void do_bedbug_breakpoint (struct pt_regs *); +#endif + +void +DebugException (struct pt_regs *regs) +{ + printf ("Debugger trap at @ %lx\n", regs->nip ); + show_regs (regs); +#ifdef CONFIG_CMD_BEDBUG + do_bedbug_breakpoint (regs); +#endif +} diff --git a/arch/ppc/cpu/mpc512x/u-boot.lds b/arch/ppc/cpu/mpc512x/u-boot.lds new file mode 100644 index 0000000..fbc2026 --- /dev/null +++ b/arch/ppc/cpu/mpc512x/u-boot.lds @@ -0,0 +1,120 @@ +/* + * (C) Copyright 2007 DENX Software Engineering. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_ARCH(powerpc) +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + arch/ppc/cpu/mpc512x/start.o (.text) + *(.text) + *(.got1) + . = ALIGN(16); + *(.eh_frame) + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x0FFF) & 0xFFFFF000; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(4096); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(4096); + __init_end = .; + + __bss_start = .; + .bss (NOLOAD) : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + . = ALIGN(4); + } + _end = . ; + PROVIDE (end = .); +} +ENTRY(_start) diff --git a/arch/ppc/cpu/mpc5xx/Makefile b/arch/ppc/cpu/mpc5xx/Makefile new file mode 100644 index 0000000..f2ebb9a --- /dev/null +++ b/arch/ppc/cpu/mpc5xx/Makefile @@ -0,0 +1,59 @@ +# +# (C) Copyright 2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# (C) Copyright 2003 +# Martin Winistoerfer, martinwinistoerfer@gmx.ch. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +# +# File: arch/ppc/cpu/mpc5xx/Makefile +# +# Discription: Makefile to build mpc5xx cpu configuration. +# Will include top config.mk which itselfs +# uses the definitions made in arch/ppc/cpu/mpc5xx/config.mk +# + + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).a + +START = start.o +COBJS = serial.o cpu.o cpu_init.o interrupts.o traps.o speed.o spi.o + +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/ppc/cpu/mpc5xx/config.mk b/arch/ppc/cpu/mpc5xx/config.mk new file mode 100644 index 0000000..e0b0ce1 --- /dev/null +++ b/arch/ppc/cpu/mpc5xx/config.mk @@ -0,0 +1,36 @@ +# +# (C) Copyright 2003 +# Martin Winistoerfer, martinwinistoerfer@gmx.ch. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +# +# File: config.mk +# +# Discription: compiler flags and make definitions +# + + +PLATFORM_RELFLAGS += -fPIC -meabi + +PLATFORM_CPPFLAGS += -DCONFIG_5xx -ffixed-r2 -mpowerpc -msoft-float + +# Use default linker script. Board port can override in board/*/config.mk +LDSCRIPT := $(SRCTREE)/arch/ppc/cpu/mpc5xx/u-boot.lds diff --git a/arch/ppc/cpu/mpc5xx/cpu.c b/arch/ppc/cpu/mpc5xx/cpu.c new file mode 100644 index 0000000..7fffebc --- /dev/null +++ b/arch/ppc/cpu/mpc5xx/cpu.c @@ -0,0 +1,171 @@ +/* + * (C) Copyright 2003 + * Martin Winistoerfer, martinwinistoerfer@gmx.ch. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, + */ + +/* + * File: cpu.c + * + * Discription: Some cpu specific function for watchdog, + * cpu version test, clock setting ... + * + */ + + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <mpc5xx.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if (defined(CONFIG_MPC555)) +# define ID_STR "MPC555/556" + +/* + * Check version of cpu with Processor Version Register (PVR) + */ +static int check_cpu_version (long clock, uint pvr, uint immr) +{ + char buf[32]; + /* The highest 16 bits should be 0x0002 for a MPC555/556 */ + if ((pvr >> 16) == 0x0002) { + printf (" " ID_STR " Version %x", (pvr >> 16)); + printf (" at %s MHz:", strmhz (buf, clock)); + } else { + printf ("Not supported cpu version"); + return -1; + } + return 0; +} +#endif /* CONFIG_MPC555 */ + + +/* + * Check version of mpc5xx + */ +int checkcpu (void) +{ + ulong clock = gd->cpu_clk; + uint immr = get_immr (0); /* Return full IMMR contents */ + uint pvr = get_pvr (); /* Retrieve PVR register */ + + puts ("CPU: "); + + return check_cpu_version (clock, pvr, immr); +} + +/* + * Called by macro WATCHDOG_RESET + */ +#if defined(CONFIG_WATCHDOG) +void watchdog_reset (void) +{ + int re_enable = disable_interrupts (); + + reset_5xx_watchdog ((immap_t *) CONFIG_SYS_IMMR); + if (re_enable) + enable_interrupts (); +} + +/* + * Will clear software reset + */ +void reset_5xx_watchdog (volatile immap_t * immr) +{ + /* Use the MPC5xx Internal Watchdog */ + immr->im_siu_conf.sc_swsr = 0x556c; /* Prevent SW time-out */ + immr->im_siu_conf.sc_swsr = 0xaa39; +} + +#endif /* CONFIG_WATCHDOG */ + + +/* + * Get timebase clock frequency + */ +unsigned long get_tbclk (void) +{ + volatile immap_t *immr = (volatile immap_t *) CONFIG_SYS_IMMR; + ulong oscclk, factor; + + if (immr->im_clkrst.car_sccr & SCCR_TBS) { + return (gd->cpu_clk / 16); + } + + factor = (((CONFIG_SYS_PLPRCR) & PLPRCR_MF_MSK) >> PLPRCR_MF_SHIFT) + 1; + + oscclk = gd->cpu_clk / factor; + + if ((immr->im_clkrst.car_sccr & SCCR_RTSEL) == 0 || factor > 2) { + return (oscclk / 4); + } + return (oscclk / 16); +} + +void dcache_enable (void) +{ + return; +} + +void dcache_disable (void) +{ + return; +} + +int dcache_status (void) +{ + return 0; /* always off */ +} + +/* + * Reset board + */ +int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ +#if defined(CONFIG_PATI) + volatile ulong *addr = (ulong *) CONFIG_SYS_RESET_ADDRESS; + *addr = 1; +#else + ulong addr; + + /* Interrupts off, enable reset */ + __asm__ volatile (" mtspr 81, %r0 \n\t" + " mfmsr %r3 \n\t" + " rlwinm %r31,%r3,0,25,23\n\t" + " mtmsr %r31 \n\t"); + /* + * Trying to execute the next instruction at a non-existing address + * should cause a machine check, resulting in reset + */ +#ifdef CONFIG_SYS_RESET_ADDRESS + addr = CONFIG_SYS_RESET_ADDRESS; +#else + /* + * note: when CONFIG_SYS_MONITOR_BASE points to a RAM address, CONFIG_SYS_MONITOR_BASE * - sizeof (ulong) is usually a valid address. Better pick an address + * known to be invalid on your system and assign it to CONFIG_SYS_RESET_ADDRESS. + * "(ulong)-1" used to be a good choice for many systems... + */ + addr = CONFIG_SYS_MONITOR_BASE - sizeof (ulong); +#endif + ((void (*) (void)) addr) (); +#endif /* #if defined(CONFIG_PATI) */ + return 1; +} diff --git a/arch/ppc/cpu/mpc5xx/cpu_init.c b/arch/ppc/cpu/mpc5xx/cpu_init.c new file mode 100644 index 0000000..cb4bf84 --- /dev/null +++ b/arch/ppc/cpu/mpc5xx/cpu_init.c @@ -0,0 +1,123 @@ +/* + * (C) Copyright 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, + */ + +/* + * File: cpu_init.c + * + * Discription: Contains initialisation functions to setup + * the cpu properly + * + */ + +#include <common.h> +#include <mpc5xx.h> +#include <watchdog.h> + +/* + * Setup essential cpu registers to run + */ +void cpu_init_f (volatile immap_t * immr) +{ + volatile memctl5xx_t *memctl = &immr->im_memctl; + ulong reg; + + /* SYPCR - contains watchdog control. This will enable watchdog */ + /* if CONFIG_WATCHDOG is set */ + immr->im_siu_conf.sc_sypcr = CONFIG_SYS_SYPCR; + +#if defined(CONFIG_WATCHDOG) + reset_5xx_watchdog (immr); +#endif + + /* SIUMCR - contains debug pin configuration */ + immr->im_siu_conf.sc_siumcr |= CONFIG_SYS_SIUMCR; + + /* Initialize timebase. Unlock TBSCRK */ + immr->im_sitk.sitk_tbscrk = KAPWR_KEY; + immr->im_sit.sit_tbscr = CONFIG_SYS_TBSCR; + + /* Full IMB bus speed */ + immr->im_uimb.uimb_umcr = CONFIG_SYS_UMCR; + + /* Time base and decrementer will be enables (TBE) */ + /* in init_timebase() in time.c called from board_init_f(). */ + + /* Initialize the PIT. Unlock PISCRK */ + immr->im_sitk.sitk_piscrk = KAPWR_KEY; + immr->im_sit.sit_piscr = CONFIG_SYS_PISCR; + +#if !defined(CONFIG_PATI) + /* PATI sest PLL in start.S */ + /* PLL (CPU clock) settings */ + immr->im_clkrstk.cark_plprcrk = KAPWR_KEY; + + /* If CONFIG_SYS_PLPRCR (set in the various *_config.h files) tries to + * set the MF field, then just copy CONFIG_SYS_PLPRCR over car_plprcr, + * otherwise OR in CONFIG_SYS_PLPRCR so we do not change the currentMF + * field value. + */ +#if ((CONFIG_SYS_PLPRCR & PLPRCR_MF_MSK) != 0) + reg = CONFIG_SYS_PLPRCR; /* reset control bits */ +#else + reg = immr->im_clkrst.car_plprcr; + reg &= PLPRCR_MF_MSK; /* isolate MF field */ + reg |= CONFIG_SYS_PLPRCR; /* reset control bits */ +#endif + immr->im_clkrst.car_plprcr = reg; + +#endif /* !defined(CONFIG_PATI) */ + + /* System integration timers. CONFIG_SYS_MASK has EBDF configuration */ + immr->im_clkrstk.cark_sccrk = KAPWR_KEY; + reg = immr->im_clkrst.car_sccr; + reg &= SCCR_MASK; + reg |= CONFIG_SYS_SCCR; + immr->im_clkrst.car_sccr = reg; + + /* Memory Controller */ + memctl->memc_br0 = CONFIG_SYS_BR0_PRELIM; + memctl->memc_or0 = CONFIG_SYS_OR0_PRELIM; + +#if (defined(CONFIG_SYS_OR1_PRELIM) && defined(CONFIG_SYS_BR1_PRELIM)) + memctl->memc_or1 = CONFIG_SYS_OR1_PRELIM; + memctl->memc_br1 = CONFIG_SYS_BR1_PRELIM; +#endif + +#if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM) + memctl->memc_or2 = CONFIG_SYS_OR2_PRELIM; + memctl->memc_br2 = CONFIG_SYS_BR2_PRELIM; +#endif + +#if defined(CONFIG_SYS_OR3_PRELIM) && defined(CONFIG_SYS_BR3_PRELIM) + memctl->memc_or3 = CONFIG_SYS_OR3_PRELIM; + memctl->memc_br3 = CONFIG_SYS_BR3_PRELIM; +#endif + +} + +/* + * Initialize higher level parts of cpu + */ +int cpu_init_r (void) +{ + /* Nothing to do at the moment */ + return (0); +} diff --git a/arch/ppc/cpu/mpc5xx/interrupts.c b/arch/ppc/cpu/mpc5xx/interrupts.c new file mode 100644 index 0000000..167543f --- /dev/null +++ b/arch/ppc/cpu/mpc5xx/interrupts.c @@ -0,0 +1,207 @@ +/* + * (C) Copyright 2000-2002 Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * (C) Copyright 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, + */ + +/* + * File: interrupt.c + * + * Discription: Contains interrupt routines needed by U-Boot + * + */ + +#include <common.h> +#include <command.h> +#include <mpc5xx.h> +#include <asm/processor.h> + +#if defined(CONFIG_PATI) +/* PATI uses IRQs for PCI doorbell */ +#undef NR_IRQS +#define NR_IRQS 16 +#endif + +struct interrupt_action { + interrupt_handler_t *handler; + void *arg; + int count; +}; + +static struct interrupt_action irq_vecs[NR_IRQS]; + +/* + * Initialise interrupts + */ + +int interrupt_init_cpu (ulong *decrementer_count) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + int vec; + + /* Decrementer used here for status led */ + *decrementer_count = get_tbclk () / CONFIG_SYS_HZ; + + /* Disable all interrupts */ + immr->im_siu_conf.sc_simask = 0; + for (vec=0; vec<NR_IRQS; vec++) { + irq_vecs[vec].handler = NULL; + irq_vecs[vec].arg = NULL; + irq_vecs[vec].count = 0; + } + + return (0); +} + +/* + * Handle external interrupts + */ +void external_interrupt (struct pt_regs *regs) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + int irq; + ulong simask, newmask; + ulong vec, v_bit; + + /* + * read the SIVEC register and shift the bits down + * to get the irq number + */ + vec = immr->im_siu_conf.sc_sivec; + irq = vec >> 26; + v_bit = 0x80000000UL >> irq; + + /* + * Read Interrupt Mask Register and Mask Interrupts + */ + simask = immr->im_siu_conf.sc_simask; + newmask = simask & (~(0xFFFF0000 >> irq)); + immr->im_siu_conf.sc_simask = newmask; + + if (!(irq & 0x1)) { /* External Interrupt ? */ + ulong siel; + + /* + * Read Interrupt Edge/Level Register + */ + siel = immr->im_siu_conf.sc_siel; + + if (siel & v_bit) { /* edge triggered interrupt ? */ + /* + * Rewrite SIPEND Register to clear interrupt + */ + immr->im_siu_conf.sc_sipend = v_bit; + } + } + + if (irq_vecs[irq].handler != NULL) { + irq_vecs[irq].handler (irq_vecs[irq].arg); + } else { + printf ("\nBogus External Interrupt IRQ %d Vector %ld\n", + irq, vec); + /* turn off the bogus interrupt to avoid it from now */ + simask &= ~v_bit; + } + /* + * Re-Enable old Interrupt Mask + */ + immr->im_siu_conf.sc_simask = simask; +} + +/* + * Install and free an interrupt handler + */ +void irq_install_handler (int vec, interrupt_handler_t * handler, + void *arg) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + /* SIU interrupt */ + if (irq_vecs[vec].handler != NULL) { + printf ("SIU interrupt %d 0x%x\n", + vec, + (uint) handler); + } + irq_vecs[vec].handler = handler; + irq_vecs[vec].arg = arg; + immr->im_siu_conf.sc_simask |= 1 << (31 - vec); +#if 0 + printf ("Install SIU interrupt for vector %d ==> %p\n", + vec, handler); +#endif +} + +void irq_free_handler (int vec) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + /* SIU interrupt */ +#if 0 + printf ("Free CPM interrupt for vector %d\n", + vec); +#endif + immr->im_siu_conf.sc_simask &= ~(1 << (31 - vec)); + irq_vecs[vec].handler = NULL; + irq_vecs[vec].arg = NULL; +} + +/* + * Timer interrupt - gets called when bit 0 of DEC changes from + * 0. Decrementer is enabled with bit TBE in TBSCR. + */ +void timer_interrupt_cpu (struct pt_regs *regs) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + +#if 0 + printf ("*** Timer Interrupt *** "); +#endif + /* Reset Timer Status Bit and Timers Interrupt Status */ + immr->im_clkrstk.cark_plprcrk = KAPWR_KEY; + __asm__ ("nop"); + immr->im_clkrst.car_plprcr |= PLPRCR_TEXPS | PLPRCR_TMIST; + + return; +} + +#if defined(CONFIG_CMD_IRQ) +/******************************************************************************* + * + * irqinfo - print information about IRQs + * + */ +int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + int vec; + + printf ("\nInterrupt-Information:\n"); + printf ("Nr Routine Arg Count\n"); + + for (vec=0; vec<NR_IRQS; vec++) { + if (irq_vecs[vec].handler != NULL) { + printf ("%02d %08lx %08lx %d\n", + vec, + (ulong)irq_vecs[vec].handler, + (ulong)irq_vecs[vec].arg, + irq_vecs[vec].count); + } + } + return 0; +} + + +#endif diff --git a/arch/ppc/cpu/mpc5xx/serial.c b/arch/ppc/cpu/mpc5xx/serial.c new file mode 100644 index 0000000..88c6db8 --- /dev/null +++ b/arch/ppc/cpu/mpc5xx/serial.c @@ -0,0 +1,170 @@ +/* + * (C) Copyright 2003 + * Martin Winistoerfer, martinwinistoerfer@gmx.ch. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, + */ + +/* + * File: serial.c + * + * Discription: Serial interface driver for SCI1 and SCI2. + * Since this code will be called from ROM use + * only non-static local variables. + * + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <mpc5xx.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Local function prototypes + */ + +static int ready_to_send(void); + +/* + * Minimal global serial functions needed to use one of the SCI modules. + */ + +int serial_init (void) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + + serial_setbrg(); + +#if defined(CONFIG_5xx_CONS_SCI1) + /* 10-Bit, 1 start bit, 8 data bit, no parity, 1 stop bit */ + immr->im_qsmcm.qsmcm_scc1r1 = SCI_M_10; + immr->im_qsmcm.qsmcm_scc1r1 = SCI_TE | SCI_RE; +#else + immr->im_qsmcm.qsmcm_scc2r1 = SCI_M_10; + immr->im_qsmcm.qsmcm_scc2r1 = SCI_TE | SCI_RE; +#endif + return 0; +} + +void serial_putc(const char c) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + + /* Test for completition */ + if(ready_to_send()) { +#if defined(CONFIG_5xx_CONS_SCI1) + immr->im_qsmcm.qsmcm_sc1dr = (short)c; +#else + immr->im_qsmcm.qsmcm_sc2dr = (short)c; +#endif + if(c == '\n') { + if(ready_to_send()); +#if defined(CONFIG_5xx_CONS_SCI1) + immr->im_qsmcm.qsmcm_sc1dr = (short)'\r'; +#else + immr->im_qsmcm.qsmcm_sc2dr = (short)'\r'; +#endif + } + } +} + +int serial_getc(void) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + volatile short status; + unsigned char tmp; + + /* New data ? */ + do { +#if defined(CONFIG_5xx_CONS_SCI1) + status = immr->im_qsmcm.qsmcm_sc1sr; +#else + status = immr->im_qsmcm.qsmcm_sc2sr; +#endif + +#if defined(CONFIG_WATCHDOG) + reset_5xx_watchdog (immr); +#endif + } while ((status & SCI_RDRF) == 0); + + /* Read data */ +#if defined(CONFIG_5xx_CONS_SCI1) + tmp = (unsigned char)(immr->im_qsmcm.qsmcm_sc1dr & SCI_SCXDR_MK); +#else + tmp = (unsigned char)( immr->im_qsmcm.qsmcm_sc2dr & SCI_SCXDR_MK); +#endif + return tmp; +} + +int serial_tstc() +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + short status; + + /* New data character ? */ +#if defined(CONFIG_5xx_CONS_SCI1) + status = immr->im_qsmcm.qsmcm_sc1sr; +#else + status = immr->im_qsmcm.qsmcm_sc2sr; +#endif + return (status & SCI_RDRF); +} + +void serial_setbrg (void) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + short scxbr; + + /* Set baudrate */ + scxbr = (gd->cpu_clk / (32 * gd->baudrate)); +#if defined(CONFIG_5xx_CONS_SCI1) + immr->im_qsmcm.qsmcm_scc1r0 = (scxbr & SCI_SCXBR_MK); +#else + immr->im_qsmcm.qsmcm_scc2r0 = (scxbr & SCI_SCXBR_MK); +#endif +} + +void serial_puts (const char *s) +{ + while (*s) { + serial_putc(*s); + ++s; + } +} + +int ready_to_send(void) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + volatile short status; + + do { +#if defined(CONFIG_5xx_CONS_SCI1) + status = immr->im_qsmcm.qsmcm_sc1sr; +#else + status = immr->im_qsmcm.qsmcm_sc2sr; +#endif + +#if defined(CONFIG_WATCHDOG) + reset_5xx_watchdog (immr); +#endif + } while ((status & SCI_TDRE) == 0); + return 1; + +} diff --git a/arch/ppc/cpu/mpc5xx/speed.c b/arch/ppc/cpu/mpc5xx/speed.c new file mode 100644 index 0000000..ea5c1de --- /dev/null +++ b/arch/ppc/cpu/mpc5xx/speed.c @@ -0,0 +1,67 @@ +/* + * (C) Copyright 2003 + * Martin Winistoerfer, martinwinistoerfer@gmx.ch. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, + */ + +/* + * File: speed.c + * + * Discription: Provides cpu speed calculation + * + */ + +#include <common.h> +#include <mpc5xx.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Get cpu and bus clock + */ +int get_clocks (void) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + +#ifndef CONFIG_5xx_GCLK_FREQ + uint divf = (immr->im_clkrst.car_plprcr & PLPRCR_DIVF_MSK); + uint mf = ((immr->im_clkrst.car_plprcr & PLPRCR_MF_MSK) >> PLPRCR_MF_SHIFT); + ulong vcoout; + + vcoout = (CONFIG_SYS_OSC_CLK / (divf + 1)) * (mf + 1) * 2; + if(immr->im_clkrst.car_plprcr & PLPRCR_CSRC_MSK) { + gd->cpu_clk = vcoout / (2^(((immr->im_clkrst.car_sccr & SCCR_DFNL_MSK) >> SCCR_DFNL_SHIFT) + 1)); + } else { + gd->cpu_clk = vcoout / (2^(immr->im_clkrst.car_sccr & SCCR_DFNH_MSK)); + } + +#else /* CONFIG_5xx_GCLK_FREQ */ + gd->bus_clk = CONFIG_5xx_GCLK_FREQ; +#endif /* CONFIG_5xx_GCLK_FREQ */ + + if ((immr->im_clkrst.car_sccr & SCCR_EBDF11) == 0) { + /* No Bus Divider active */ + gd->bus_clk = gd->cpu_clk; + } else { + /* CLKOUT is GCLK / 2 */ + gd->bus_clk = gd->cpu_clk / 2; + } + return (0); +} diff --git a/arch/ppc/cpu/mpc5xx/spi.c b/arch/ppc/cpu/mpc5xx/spi.c new file mode 100644 index 0000000..3ca15ea --- /dev/null +++ b/arch/ppc/cpu/mpc5xx/spi.c @@ -0,0 +1,412 @@ +/* + * Copyright (c) 2001 Navin Boppuri / Prashant Patel + * <nboppuri@trinetcommunication.com>, + * <pmpatel@trinetcommunication.com> + * Copyright (c) 2001 Gerd Mennchen <Gerd.Mennchen@icn.siemens.de> + * Copyright (c) 2001 Wolfgang Denk, DENX Software Engineering, <wd@denx.de>. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * MPC5xx CPM SPI interface. + * + * Parts of this code are probably not portable and/or specific to + * the board which I used for the tests. Please send fixes/complaints + * to wd@denx.de + * + * Ported to MPC5xx + * Copyright (c) 2003 Denis Peter, MPL AG Switzerland, d.petr@mpl.ch. + */ + +#include <common.h> +#include <mpc5xx.h> +#include <asm/5xx_immap.h> +#include <linux/ctype.h> +#include <malloc.h> +#include <post.h> +#include <net.h> + +#if defined(CONFIG_SPI) + +#undef DEBUG + +#define SPI_EEPROM_WREN 0x06 +#define SPI_EEPROM_RDSR 0x05 +#define SPI_EEPROM_READ 0x03 +#define SPI_EEPROM_WRITE 0x02 + + +#ifdef DEBUG + +#define DPRINT(a) printf a; +/* ----------------------------------------------- + * Helper functions to peek into tx and rx buffers + * ----------------------------------------------- */ +static const char * const hex_digit = "0123456789ABCDEF"; + +static char quickhex (int i) +{ + return hex_digit[i]; +} + +static void memdump (void *pv, int num) +{ + int i; + unsigned char *pc = (unsigned char *) pv; + + for (i = 0; i < num; i++) + printf ("%c%c ", quickhex (pc[i] >> 4), quickhex (pc[i] & 0x0f)); + printf ("\t"); + for (i = 0; i < num; i++) + printf ("%c", isprint (pc[i]) ? pc[i] : '.'); + printf ("\n"); +} +#else /* !DEBUG */ + +#define DPRINT(a) + +#endif /* DEBUG */ + +/* ------------------- + * Function prototypes + * ------------------- */ +void spi_init (void); + +ssize_t spi_read (uchar *, int, uchar *, int); +ssize_t spi_write (uchar *, int, uchar *, int); +ssize_t spi_xfer (size_t); + + +/* ************************************************************************** + * + * Function: spi_init_f + * + * Description: Init SPI-Controller (ROM part) + * + * return: --- + * + * *********************************************************************** */ + +void spi_init_f (void) +{ + int i; + + volatile immap_t *immr; + volatile qsmcm5xx_t *qsmcm; + + immr = (immap_t *) CONFIG_SYS_IMMR; + qsmcm = (qsmcm5xx_t *)&immr->im_qsmcm; + + qsmcm->qsmcm_qsmcr = 0; /* all accesses enabled */ + qsmcm->qsmcm_qspi_il = 0; /* lowest IRQ */ + + /* -------------------------------------------- + * GPIO or per. Function + * PQSPAR[00] = 0 reserved + * PQSPAR[01] = 1 [0x4000] -> PERI: (SPICS3) + * PQSPAR[02] = 0 [0x0000] -> GPIO + * PQSPAR[03] = 0 [0x0000] -> GPIO + * PQSPAR[04] = 1 [0x0800] -> PERI: (SPICS0) + * PQSPAR[05] = 0 reseved + * PQSPAR[06] = 1 [0x0200] -> PERI: (SPIMOSI) + * PQSPAR[07] = 1 [0x0100] -> PERI: (SPIMISO) + * -------------------------------------------- */ + qsmcm->qsmcm_pqspar = 0x3 | (CONFIG_SYS_SPI_CS_USED << 3); + + /* -------------------------------------------- + * DDRQS[00] = 0 reserved + * DDRQS[01] = 1 [0x0040] -> SPICS3 Output + * DDRQS[02] = 0 [0x0000] -> GPIO Output + * DDRQS[03] = 0 [0x0000] -> GPIO Output + * DDRQS[04] = 1 [0x0008] -> SPICS0 Output + * DDRQS[05] = 1 [0x0004] -> SPICLK Output + * DDRQS[06] = 1 [0x0002] -> SPIMOSI Output + * DDRQS[07] = 0 [0x0001] -> SPIMISO Input + * -------------------------------------------- */ + qsmcm->qsmcm_ddrqs = 0x7E; + /* -------------------------------------------- + * Base state for used SPI CS pins, if base = 0 active must be 1 + * PORTQS[00] = 0 reserved + * PORTQS[01] = 0 reserved + * PORTQS[02] = 0 reserved + * PORTQS[03] = 0 reserved + * PORTQS[04] = 0 [0x0000] RxD2 + * PORTQS[05] = 1 [0x0400] TxD2 + * PORTQS[06] = 0 [0x0000] RxD1 + * PORTQS[07] = 1 [0x0100] TxD1 + * PORTQS[08] = 0 reserved + * PORTQS[09] = 0 [0x0000] -> SPICS3 Base Output + * PORTQS[10] = 0 [0x0000] -> SPICS2 Base Output + * PORTQS[11] = 0 [0x0000] -> SPICS1 Base Output + * PORTQS[12] = 0 [0x0000] -> SPICS0 Base Output + * PORTQS[13] = 0 [0x0004] -> SPICLK Output + * PORTQS[14] = 0 [0x0002] -> SPIMOSI Output + * PORTQS[15] = 0 [0x0001] -> SPIMISO Input + * -------------------------------------------- */ + qsmcm->qsmcm_portqs |= (CONFIG_SYS_SPI_CS_BASE << 3); + /* -------------------------------------------- + * Controll Register 0 + * SPCR0[00] = 1 (0x8000) Master + * SPCR0[01] = 0 (0x0000) Wired-Or + * SPCR0[2..5] = (0x2000) Bits per transfer (default 8) + * SPCR0[06] = 0 (0x0000) Normal polarity + * SPCR0[07] = 0 (0x0000) Normal Clock Phase + * SPCR0[08..15] = 14 1.4MHz + */ + qsmcm->qsmcm_spcr0=0xA00E; + /* -------------------------------------------- + * Controll Register 1 + * SPCR1[00] = 0 (0x0000) QSPI enabled + * SPCR1[1..7] = (0x7F00) Delay before Transfer + * SPCR1[8..15] = (0x0000) Delay After transfer (204.8usec@40MHz) + */ + qsmcm->qsmcm_spcr1=0x7F00; + /* -------------------------------------------- + * Controll Register 2 + * SPCR2[00] = 0 (0x0000) SPI IRQs Disabeld + * SPCR2[01] = 0 (0x0000) No Wrap around + * SPCR2[02] = 0 (0x0000) Wrap to 0 + * SPCR2[3..7] = (0x0000) End Queue pointer = 0 + * SPCR2[8..10] = 0 (0x0000) reserved + * SPCR2[11..15] = 0 (0x0000) NewQueue Address = 0 + */ + qsmcm->qsmcm_spcr2=0x0000; + /* -------------------------------------------- + * Controll Register 3 + * SPCR3[00..04] = 0 (0x0000) reserved + * SPCR3[05] = 0 (0x0000) Feedback disabled + * SPCR3[06] = 0 (0x0000) IRQ on HALTA & MODF disabled + * SPCR3[07] = 0 (0x0000) Not halted + */ + qsmcm->qsmcm_spcr3=0x00; + /* -------------------------------------------- + * SPSR (Controll Register 3) Read only/ reset Flags 08,09,10 + * SPCR3[08] = 1 (0x80) QSPI finished + * SPCR3[09] = 1 (0x40) Mode Fault Flag + * SPCR3[10] = 1 (0x20) HALTA + * SPCR3[11..15] = 0 (0x0000) Last executed command + */ + qsmcm->qsmcm_spsr=0xE0; + /*------------------------------------------- + * Setup RAM + */ + for(i=0;i<32;i++) { + qsmcm->qsmcm_recram[i]=0x0000; + qsmcm->qsmcm_tranram[i]=0x0000; + qsmcm->qsmcm_comdram[i]=0x00; + } + return; +} + +/* ************************************************************************** + * + * Function: spi_init_r + * Dummy, all initializations have been done in spi_init_r + * *********************************************************************** */ +void spi_init_r (void) +{ + return; + +} + +/**************************************************************************** + * Function: spi_write + **************************************************************************** */ +ssize_t short_spi_write (uchar *addr, int alen, uchar *buffer, int len) +{ + int i,dlen; + volatile immap_t *immr; + volatile qsmcm5xx_t *qsmcm; + + immr = (immap_t *) CONFIG_SYS_IMMR; + qsmcm = (qsmcm5xx_t *)&immr->im_qsmcm; + for(i=0;i<32;i++) { + qsmcm->qsmcm_recram[i]=0x0000; + qsmcm->qsmcm_tranram[i]=0x0000; + qsmcm->qsmcm_comdram[i]=0x00; + } + qsmcm->qsmcm_tranram[0] = SPI_EEPROM_WREN; /* write enable */ + spi_xfer(1); + i=0; + qsmcm->qsmcm_tranram[i++] = SPI_EEPROM_WRITE; /* WRITE memory array */ + qsmcm->qsmcm_tranram[i++] = addr[0]; + qsmcm->qsmcm_tranram[i++] = addr[1]; + + for(dlen=0;dlen<len;dlen++) { + qsmcm->qsmcm_tranram[i+dlen] = buffer[dlen]; /* WRITE memory array */ + } + /* transmit it */ + spi_xfer(i+dlen); + /* ignore received data */ + for (i = 0; i < 1000; i++) { + qsmcm->qsmcm_tranram[0] = SPI_EEPROM_RDSR; /* read status */ + qsmcm->qsmcm_tranram[1] = 0; + spi_xfer(2); + if (!(qsmcm->qsmcm_recram[1] & 1)) { + break; + } + udelay(1000); + } + if (i >= 1000) { + printf ("*** spi_write: Time out while writing!\n"); + } + return len; +} + +#define TRANSFER_LEN 16 + +ssize_t spi_write (uchar *addr, int alen, uchar *buffer, int len) +{ + int index,i,newlen; + uchar newaddr[2]; + int curraddr; + + curraddr=(addr[alen-2]<<8)+addr[alen-1]; + i=len; + index=0; + do { + newaddr[1]=(curraddr & 0xff); + newaddr[0]=((curraddr>>8) & 0xff); + if(i>TRANSFER_LEN) { + newlen=TRANSFER_LEN; + i-=TRANSFER_LEN; + } + else { + newlen=i; + i=0; + } + short_spi_write (newaddr, 2, &buffer[index], newlen); + index+=newlen; + curraddr+=newlen; + }while(i); + return (len); +} + +/**************************************************************************** + * Function: spi_read + **************************************************************************** */ +ssize_t short_spi_read (uchar *addr, int alen, uchar *buffer, int len) +{ + int i; + volatile immap_t *immr; + volatile qsmcm5xx_t *qsmcm; + + immr = (immap_t *) CONFIG_SYS_IMMR; + qsmcm = (qsmcm5xx_t *)&immr->im_qsmcm; + + for(i=0;i<32;i++) { + qsmcm->qsmcm_recram[i]=0x0000; + qsmcm->qsmcm_tranram[i]=0x0000; + qsmcm->qsmcm_comdram[i]=0x00; + } + i=0; + qsmcm->qsmcm_tranram[i++] = (SPI_EEPROM_READ); /* READ memory array */ + qsmcm->qsmcm_tranram[i++] = addr[0] & 0xff; + qsmcm->qsmcm_tranram[i++] = addr[1] & 0xff; + spi_xfer(3 + len); + for(i=0;i<len;i++) { + *buffer++=(char)qsmcm->qsmcm_recram[i+3]; + } + return len; +} + +ssize_t spi_read (uchar *addr, int alen, uchar *buffer, int len) +{ + int index,i,newlen; + uchar newaddr[2]; + int curraddr; + + curraddr=(addr[alen-2]<<8)+addr[alen-1]; + i=len; + index=0; + do { + newaddr[1]=(curraddr & 0xff); + newaddr[0]=((curraddr>>8) & 0xff); + if(i>TRANSFER_LEN) { + newlen=TRANSFER_LEN; + i-=TRANSFER_LEN; + } + else { + newlen=i; + i=0; + } + short_spi_read (newaddr, 2, &buffer[index], newlen); + index+=newlen; + curraddr+=newlen; + }while(i); + return (len); +} + +/**************************************************************************** + * Function: spi_xfer + **************************************************************************** */ +ssize_t spi_xfer (size_t count) +{ + volatile immap_t *immr; + volatile qsmcm5xx_t *qsmcm; + int i; + int tm; + ushort status; + immr = (immap_t *) CONFIG_SYS_IMMR; + qsmcm = (qsmcm5xx_t *)&immr->im_qsmcm; + DPRINT (("*** spi_xfer entered count %d***\n",count)); + + /* Set CS for device */ + for(i=0;i<(count-1);i++) + qsmcm->qsmcm_comdram[i] = 0x80 | CONFIG_SYS_SPI_CS_ACT; /* CS3 is connected to the SPI EEPROM */ + + qsmcm->qsmcm_comdram[i] = CONFIG_SYS_SPI_CS_ACT; /* CS3 is connected to the SPI EEPROM */ + qsmcm->qsmcm_spcr2=((count-1)&0x1F)<<8; + + DPRINT (("*** spi_xfer: Bytes to be xferred: %d ***\n", count)); + + qsmcm->qsmcm_spsr=0xE0; /* clear all flags */ + + /* start spi transfer */ + DPRINT (("*** spi_xfer: Performing transfer ...\n")); + qsmcm->qsmcm_spcr1 |= 0x8000; /* Start transmit */ + + /* -------------------------------- + * Wait for SPI transmit to get out + * or time out (1 second = 1000 ms) + * -------------------------------- */ + for (tm=0; tm<1000; ++tm) { + status=qsmcm->qsmcm_spcr1; + if((status & 0x8000)==0) + break; + udelay (1000); + } + if (tm >= 1000) { + printf ("*** spi_xfer: Time out while xferring to/from SPI!\n"); + } +#ifdef DEBUG + printf ("\nspi_xfer: txbuf after xfer\n"); + memdump ((void *) qsmcm->qsmcm_tranram, 32); /* dump of txbuf before transmit */ + printf ("spi_xfer: rxbuf after xfer\n"); + memdump ((void *) qsmcm->qsmcm_recram, 32); /* dump of rxbuf after transmit */ + printf ("\nspi_xfer: commbuf after xfer\n"); + memdump ((void *) qsmcm->qsmcm_comdram, 32); /* dump of txbuf before transmit */ + printf ("\n"); +#endif + + return count; +} + +#endif /* CONFIG_SPI */ diff --git a/arch/ppc/cpu/mpc5xx/start.S b/arch/ppc/cpu/mpc5xx/start.S new file mode 100644 index 0000000..0af879e --- /dev/null +++ b/arch/ppc/cpu/mpc5xx/start.S @@ -0,0 +1,576 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2000, 2001, 2002 Wolfgang Denk <wd@denx.de> + * Copyright (C) 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * File: start.S + * + * Discription: startup code + * + */ + +#include <config.h> +#include <mpc5xx.h> +#include <timestamp.h> +#include <version.h> + +#define CONFIG_5xx 1 /* needed for Linux kernel header files */ +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <linux/config.h> +#include <asm/processor.h> + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +/* We don't have a MMU. +*/ +#undef MSR_KERNEL +#define MSR_KERNEL ( MSR_ME | MSR_RI ) /* Machine Check and Recoverable Interr. */ + +/* + * Set up GOT: Global Offset Table + * + * Use r12 to access the GOT + */ + START_GOT + GOT_ENTRY(_GOT2_TABLE_) + GOT_ENTRY(_FIXUP_TABLE_) + + GOT_ENTRY(_start) + GOT_ENTRY(_start_of_vectors) + GOT_ENTRY(_end_of_vectors) + GOT_ENTRY(transfer_to_handler) + + GOT_ENTRY(__init_end) + GOT_ENTRY(_end) + GOT_ENTRY(__bss_start) + END_GOT + +/* + * r3 - 1st arg to board_init(): IMMP pointer + * r4 - 2nd arg to board_init(): boot flag + */ + .text + .long 0x27051956 /* U-Boot Magic Number */ + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" + .ascii CONFIG_IDENT_STRING, "\0" + + . = EXC_OFF_SYS_RESET + .globl _start +_start: + mfspr r3, 638 + li r4, CONFIG_SYS_ISB /* Set ISB bit */ + or r3, r3, r4 + mtspr 638, r3 + li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */ + b boot_cold + + . = EXC_OFF_SYS_RESET + 0x20 + + .globl _start_warm +_start_warm: + li r21, BOOTFLAG_WARM /* Software reboot */ + b boot_warm + +boot_cold: +boot_warm: + + /* Initialize machine status; enable machine check interrupt */ + /*----------------------------------------------------------------------*/ + li r3, MSR_KERNEL /* Set ME, RI flags */ + mtmsr r3 + mtspr SRR1, r3 /* Make SRR1 match MSR */ + + /* Initialize debug port registers */ + /*----------------------------------------------------------------------*/ + xor r0, r0, r0 /* Clear R0 */ + mtspr LCTRL1, r0 /* Initialize debug port regs */ + mtspr LCTRL2, r0 + mtspr COUNTA, r0 + mtspr COUNTB, r0 + +#if defined(CONFIG_PATI) + /* the external flash access on PATI fails if programming the PLL to 40MHz. + * Copy the PLL programming code to the internal RAM and execute it + *----------------------------------------------------------------------*/ + lis r3, CONFIG_SYS_MONITOR_BASE@h + ori r3, r3, CONFIG_SYS_MONITOR_BASE@l + addi r3, r3, pll_prog_code_start - _start + EXC_OFF_SYS_RESET + + lis r4, CONFIG_SYS_INIT_RAM_ADDR@h + ori r4, r4, CONFIG_SYS_INIT_RAM_ADDR@l + mtlr r4 + addis r5,0,0x0 + ori r5,r5,((pll_prog_code_end - pll_prog_code_start) >>2) + mtctr r5 + addi r3, r3, -4 + addi r4, r4, -4 +0: + lwzu r0,4(r3) + stwu r0,4(r4) + bdnz 0b /* copy loop */ + blrl +#endif + + /* + * Calculate absolute address in FLASH and jump there + *----------------------------------------------------------------------*/ + + lis r3, CONFIG_SYS_MONITOR_BASE@h + ori r3, r3, CONFIG_SYS_MONITOR_BASE@l + addi r3, r3, in_flash - _start + EXC_OFF_SYS_RESET + mtlr r3 + blr + +in_flash: + + /* Initialize some SPRs that are hard to access from C */ + /*----------------------------------------------------------------------*/ + + lis r3, CONFIG_SYS_IMMR@h /* Pass IMMR as arg1 to C routine */ + lis r2, CONFIG_SYS_INIT_SP_ADDR@h + ori r1, r2, CONFIG_SYS_INIT_SP_ADDR@l /* Set up the stack in internal SRAM */ + /* Note: R0 is still 0 here */ + stwu r0, -4(r1) /* Clear final stack frame so that */ + stwu r0, -4(r1) /* stack backtraces terminate cleanly */ + + /* + * Disable serialized ifetch and show cycles + * (i.e. set processor to normal mode) for maximum + * performance. + */ + + li r2, 0x0007 + mtspr ICTRL, r2 + + /* Set up debug mode entry */ + + lis r2, CONFIG_SYS_DER@h + ori r2, r2, CONFIG_SYS_DER@l + mtspr DER, r2 + + /* Let the C-code set up the rest */ + /* */ + /* Be careful to keep code relocatable ! */ + /*----------------------------------------------------------------------*/ + + GET_GOT /* initialize GOT access */ + + /* r3: IMMR */ + bl cpu_init_f /* run low-level CPU init code (from Flash) */ + + mr r3, r21 + /* r3: BOOTFLAG */ + bl board_init_f /* run 1st part of board init code (from Flash) */ + + + .globl _start_of_vectors +_start_of_vectors: + +/* Machine check */ + STD_EXCEPTION(0x200, MachineCheck, MachineCheckException) + +/* Data Storage exception. "Never" generated on the 860. */ + STD_EXCEPTION(0x300, DataStorage, UnknownException) + +/* Instruction Storage exception. "Never" generated on the 860. */ + STD_EXCEPTION(0x400, InstStorage, UnknownException) + +/* External Interrupt exception. */ + STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) + +/* Alignment exception. */ + . = 0x600 +Alignment: + EXCEPTION_PROLOG(SRR0, SRR1) + mfspr r4,DAR + stw r4,_DAR(r21) + mfspr r5,DSISR + stw r5,_DSISR(r21) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) + +/* Program check exception */ + . = 0x700 +ProgramCheck: + EXCEPTION_PROLOG(SRR0, SRR1) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, + MSR_KERNEL, COPY_EE) + + /* FPU on MPC5xx available. We will use it later. + */ + STD_EXCEPTION(0x800, FPUnavailable, UnknownException) + + /* I guess we could implement decrementer, and may have + * to someday for timekeeping. + */ + STD_EXCEPTION(0x900, Decrementer, timer_interrupt) + STD_EXCEPTION(0xa00, Trap_0a, UnknownException) + STD_EXCEPTION(0xb00, Trap_0b, UnknownException) + STD_EXCEPTION(0xc00, SystemCall, UnknownException) + STD_EXCEPTION(0xd00, SingleStep, UnknownException) + + STD_EXCEPTION(0xe00, Trap_0e, UnknownException) + STD_EXCEPTION(0xf00, Trap_0f, UnknownException) + + /* On the MPC8xx, this is a software emulation interrupt. It occurs + * for all unimplemented and illegal instructions. + */ + STD_EXCEPTION(0x1000, SoftEmu, SoftEmuException) + STD_EXCEPTION(0x1100, InstructionTLBMiss, UnknownException) + STD_EXCEPTION(0x1200, DataTLBMiss, UnknownException) + STD_EXCEPTION(0x1300, InstructionTLBError, UnknownException) + STD_EXCEPTION(0x1400, DataTLBError, UnknownException) + + STD_EXCEPTION(0x1500, Reserved5, UnknownException) + STD_EXCEPTION(0x1600, Reserved6, UnknownException) + STD_EXCEPTION(0x1700, Reserved7, UnknownException) + STD_EXCEPTION(0x1800, Reserved8, UnknownException) + STD_EXCEPTION(0x1900, Reserved9, UnknownException) + STD_EXCEPTION(0x1a00, ReservedA, UnknownException) + STD_EXCEPTION(0x1b00, ReservedB, UnknownException) + + STD_EXCEPTION(0x1c00, DataBreakpoint, UnknownException) + STD_EXCEPTION(0x1d00, InstructionBreakpoint, DebugException) + STD_EXCEPTION(0x1e00, PeripheralBreakpoint, UnknownException) + STD_EXCEPTION(0x1f00, DevPortBreakpoint, UnknownException) + + + .globl _end_of_vectors +_end_of_vectors: + + + . = 0x2000 + +/* + * This code finishes saving the registers to the exception frame + * and jumps to the appropriate handler for the exception. + * Register r21 is pointer into trap frame, r1 has new stack pointer. + */ + .globl transfer_to_handler +transfer_to_handler: + stw r22,_NIP(r21) + lis r22,MSR_POW@h + andc r23,r23,r22 + stw r23,_MSR(r21) + SAVE_GPR(7, r21) + SAVE_4GPRS(8, r21) + SAVE_8GPRS(12, r21) + SAVE_8GPRS(24, r21) + mflr r23 + andi. r24,r23,0x3f00 /* get vector offset */ + stw r24,TRAP(r21) + li r22,0 + stw r22,RESULT(r21) + mtspr SPRG2,r22 /* r1 is now kernel sp */ + lwz r24,0(r23) /* virtual address of handler */ + lwz r23,4(r23) /* where to go when done */ + mtspr SRR0,r24 + mtspr SRR1,r20 + mtlr r23 + SYNC + rfi /* jump to handler, enable MMU */ + +int_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SRR0,r2 + mtspr SRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfi + + +/* + * unsigned int get_immr (unsigned int mask) + * + * return (mask ? (IMMR & mask) : IMMR); + */ + .globl get_immr +get_immr: + mr r4,r3 /* save mask */ + mfspr r3, IMMR /* IMMR */ + cmpwi 0,r4,0 /* mask != 0 ? */ + beq 4f + and r3,r3,r4 /* IMMR & mask */ +4: + blr + + .globl get_pvr +get_pvr: + mfspr r3, PVR + blr + + +/*------------------------------------------------------------------------------*/ + +/* + * void relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * r3 = dest + * r4 = src + * r5 = length in bytes + * r6 = cachelinesize + */ + .globl relocate_code +relocate_code: + mr r1, r3 /* Set new stack pointer in SRAM */ + mr r9, r4 /* Save copy of global data pointer in SRAM */ + mr r10, r5 /* Save copy of monitor destination Address in SRAM */ + + GET_GOT + mr r3, r5 /* Destination Address */ + lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ + ori r4, r4, CONFIG_SYS_MONITOR_BASE@l + lwz r5, GOT(__init_end) + sub r5, r5, r4 + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address + * + * Offset: + */ + sub r15, r10, r4 + + /* First our own GOT */ + add r12, r12, r15 + /* the the one used by the C code */ + add r30, r30, r15 + + /* + * Now relocate code + */ + + cmplw cr1,r3,r4 + addi r0,r5,3 + srwi. r0,r0,2 + beq cr1,4f /* In place copy is not necessary */ + beq 4f /* Protect against 0 count */ + mtctr r0 + bge cr1,2f + + la r8,-4(r4) + la r7,-4(r3) +1: lwzu r0,4(r8) + stwu r0,4(r7) + bdnz 1b + b 4f + +2: slwi r0,r0,2 + add r8,r4,r0 + add r7,r3,r0 +3: lwzu r0,-4(r8) + stwu r0,-4(r7) + bdnz 3b + +4: sync + isync + +/* + * We are done. Do not return, instead branch to second part of board + * initialization, now running from RAM. + */ + + addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET + mtlr r0 + blr + +in_ram: + + /* + * Relocation Function, r12 point to got2+0x8000 + * + * Adjust got2 pointers, no need to check for 0, this code + * already puts a few entries in the table. + */ + li r0,__got2_entries@sectoff@l + la r3,GOT(_GOT2_TABLE_) + lwz r11,GOT(_GOT2_TABLE_) + mtctr r0 + sub r11,r3,r11 + addi r3,r3,-4 +1: lwzu r0,4(r3) + cmpwi r0,0 + beq- 2f + add r0,r0,r11 + stw r0,0(r3) +2: bdnz 1b + + /* + * Now adjust the fixups and the pointers to the fixups + * in case we need to move ourselves again. + */ + li r0,__fixup_entries@sectoff@l + lwz r3,GOT(_FIXUP_TABLE_) + cmpwi r0,0 + mtctr r0 + addi r3,r3,-4 + beq 4f +3: lwzu r4,4(r3) + lwzux r0,r4,r11 + add r0,r0,r11 + stw r10,0(r3) + stw r0,0(r4) + bdnz 3b +4: +clear_bss: + /* + * Now clear BSS segment + */ + lwz r3,GOT(__bss_start) + lwz r4,GOT(_end) + cmplw 0, r3, r4 + beq 6f + + li r0, 0 +5: + stw r0, 0(r3) + addi r3, r3, 4 + cmplw 0, r3, r4 + bne 5b +6: + + mr r3, r9 /* Global Data pointer */ + mr r4, r10 /* Destination Address */ + bl board_init_r + + /* + * Copy exception vector code to low memory + * + * r3: dest_addr + * r7: source address, r8: end address, r9: target address + */ + .globl trap_init +trap_init: + mflr r4 /* save link register */ + GET_GOT + lwz r7, GOT(_start) + lwz r8, GOT(_end_of_vectors) + + li r9, 0x100 /* reset vector always at 0x100 */ + + cmplw 0, r7, r8 + bgelr /* return if r7>=r8 - just in case */ +1: + lwz r0, 0(r7) + stw r0, 0(r9) + addi r7, r7, 4 + addi r9, r9, 4 + cmplw 0, r7, r8 + bne 1b + + /* + * relocate `hdlr' and `int_return' entries + */ + li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET + li r8, Alignment - _start + EXC_OFF_SYS_RESET +2: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 2b + + li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET + li r8, SystemCall - _start + EXC_OFF_SYS_RESET +3: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 3b + + li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET + li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET +4: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 4b + + mtlr r4 /* restore link register */ + blr + +#if defined(CONFIG_PATI) +/* Program the PLL */ +pll_prog_code_start: + lis r4, (CONFIG_SYS_IMMR + 0x002fc384)@h + ori r4, r4, (CONFIG_SYS_IMMR + 0x002fc384)@l + lis r3, (0x55ccaa33)@h + ori r3, r3, (0x55ccaa33)@l + stw r3, 0(r4) + lis r4, (CONFIG_SYS_IMMR + 0x002fc284)@h + ori r4, r4, (CONFIG_SYS_IMMR + 0x002fc284)@l + lis r3, CONFIG_SYS_PLPRCR@h + ori r3, r3, CONFIG_SYS_PLPRCR@l + stw r3, 0(r4) + addis r3,0,0x0 + ori r3,r3,0xA000 + mtctr r3 +..spinlp: + bdnz ..spinlp /* spin loop */ + blr +pll_prog_code_end: + nop + blr +#endif diff --git a/arch/ppc/cpu/mpc5xx/traps.c b/arch/ppc/cpu/mpc5xx/traps.c new file mode 100644 index 0000000..6882c21 --- /dev/null +++ b/arch/ppc/cpu/mpc5xx/traps.c @@ -0,0 +1,227 @@ +/* + * linux/arch/ppc/kernel/traps.c + * + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * Modified by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras (paulus@cs.anu.edu.au) + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * This file handles the architecture-dependent parts of hardware exceptions + */ + +#include <common.h> +#include <command.h> +#include <kgdb.h> +#include <asm/processor.h> + +#if defined(CONFIG_CMD_BEDBUG) +extern void do_bedbug_breakpoint(struct pt_regs *); +#endif + +/* Returns 0 if exception not found and fixup otherwise. */ +extern unsigned long search_exception_table(unsigned long); + +/* THIS NEEDS CHANGING to use the board info structure. +*/ +#define END_OF_MEM 0x0001000 + + +/* + * Print stack backtrace + */ +void print_backtrace(unsigned long *sp) +{ + int cnt = 0; + unsigned long i; + + printf("Call backtrace: "); + while (sp) { + if ((uint)sp > END_OF_MEM) + break; + + i = sp[1]; + if (cnt++ % 7 == 0) + printf("\n"); + printf("%08lX ", i); + if (cnt > 32) break; + sp = (unsigned long *)*sp; + } + printf("\n"); +} + +/* + * Print current registers + */ +void show_regs(struct pt_regs * regs) +{ + int i; + printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n", + regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); + printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n", + regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0, + regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0, + regs->msr&MSR_IR ? 1 : 0, + regs->msr&MSR_DR ? 1 : 0); + + printf("\n"); + for (i = 0; i < 32; i++) { + if ((i % 8) == 0) + { + printf("GPR%02d: ", i); + } + + printf("%08lX ", regs->gpr[i]); + if ((i % 8) == 7) + { + printf("\n"); + } + } +} + + +/* + * General exception handler routine + */ +void _exception(int signr, struct pt_regs *regs) +{ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Exception in kernel pc %lx signal %d",regs->nip,signr); +} + +/* + * Machine check exception handler routine + */ +void MachineCheckException(struct pt_regs *regs) +{ + unsigned long fixup; + + /* Probing PCI using config cycles cause this exception + * when a device is not present. Catch it and return to + * the PCI exception handler. + */ + if ((fixup = search_exception_table(regs->nip)) != 0) { + regs->nip = fixup; + return; + } + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + printf("Machine check in kernel mode.\n"); + printf("Caused by (from msr): "); + printf("regs %p ",regs); + switch( regs->msr & 0x000F0000) { + case (0x80000000>>12): + printf("Machine check signal\n"); + break; + case (0x80000000>>13): + printf("Transfer error ack signal\n"); + break; + case (0x80000000>>14): + printf("Data parity signal\n"); + break; + case (0x80000000>>15): + printf("Address parity signal\n"); + break; + default: + printf("Unknown values in msr\n"); + } + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("machine check"); +} + +/* + * Alignment exception handler routine + */ +void AlignmentException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Alignment Exception"); +} + +/* + * Program check exception handler routine + */ +void ProgramCheckException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Program Check Exception"); +} + +/* + * Software emulation exception handler routine + */ +void SoftEmuException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Software Emulation Exception"); +} + + +/* + * Unknown exception handler routine + */ +void UnknownException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", + regs->nip, regs->msr, regs->trap); + _exception(0, regs); +} + +/* + * Debug exception handler routine + */ +void DebugException(struct pt_regs *regs) +{ + printf("Debugger trap at @ %lx\n", regs->nip ); + show_regs(regs); +#if defined(CONFIG_CMD_BEDBUG) + do_bedbug_breakpoint( regs ); +#endif +} diff --git a/arch/ppc/cpu/mpc5xx/u-boot.lds b/arch/ppc/cpu/mpc5xx/u-boot.lds new file mode 100644 index 0000000..55190c7 --- /dev/null +++ b/arch/ppc/cpu/mpc5xx/u-boot.lds @@ -0,0 +1,137 @@ +/* + * (C) Copyright 2001 Wolfgang Denk, DENX Software Engineering, wd@denx.de + * (C) Copyright 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_ARCH(powerpc) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + /* WARNING - the following is hand-optimized to fit within */ + /* the sector layout of our flash chips! XXX FIXME XXX */ + + arch/ppc/cpu/mpc5xx/start.o (.text) + + *(.text) + *(.got1) + } + _etext = .; + PROVIDE (etext = .); + .rodata : + { + *(.eh_frame) + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x00FF) & 0xFFFFFF00; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2; + __fixup_entries = (. - _FIXUP_TABLE_)>>2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(256); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(256); + __init_end = .; + + __bss_start = .; + .bss (NOLOAD) : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + . = ALIGN(4); + } + + _end = . ; + PROVIDE (end = .); +/* . = env_start; + .ppcenv : + { + common/env_embedded.o (.ppcenv) + } +*/ +} diff --git a/arch/ppc/cpu/mpc5xxx/Makefile b/arch/ppc/cpu/mpc5xxx/Makefile new file mode 100644 index 0000000..0ee0611 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/Makefile @@ -0,0 +1,49 @@ +# +# (C) Copyright 2003-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).a + +START = start.o +SOBJS = io.o firmware_sc_task_bestcomm.impl.o +COBJS = i2c.o traps.o cpu.o cpu_init.o ide.o interrupts.o \ + loadtask.o pci_mpc5200.o serial.o speed.o usb_ohci.o usb.o + +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/ppc/cpu/mpc5xxx/config.mk b/arch/ppc/cpu/mpc5xxx/config.mk new file mode 100644 index 0000000..9a64cb6 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/config.mk @@ -0,0 +1,30 @@ +# +# (C) Copyright 2003 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +PLATFORM_RELFLAGS += -fPIC -meabi + +PLATFORM_CPPFLAGS += -DCONFIG_MPC5xxx -ffixed-r2 \ + -mstring -mcpu=603e -mmultiple + +# Use default linker script. Board port can override in board/*/config.mk +LDSCRIPT := $(SRCTREE)/arch/ppc/cpu/mpc5xxx/u-boot.lds diff --git a/arch/ppc/cpu/mpc5xxx/cpu.c b/arch/ppc/cpu/mpc5xxx/cpu.c new file mode 100644 index 0000000..b20234d --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/cpu.c @@ -0,0 +1,205 @@ +/* + * (C) Copyright 2000-2010 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * CPU specific code for the MPC5xxx CPUs + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <net.h> +#include <mpc5xxx.h> +#include <netdev.h> +#include <asm/io.h> +#include <asm/processor.h> + +#if defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#include <libfdt_env.h> +#include <fdt_support.h> +#endif + +#if defined(CONFIG_OF_IDE_FIXUP) +#include <ide.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +int checkcpu (void) +{ + ulong clock = gd->cpu_clk; + char buf[32]; + uint svr, pvr; + + puts ("CPU: "); + + svr = get_svr(); + pvr = get_pvr(); + + switch (pvr) { + case PVR_5200: + printf("MPC5200"); + break; + case PVR_5200B: + printf("MPC5200B"); + break; + default: + printf("Unknown MPC5xxx"); + break; + } + + printf (" v%d.%d, Core v%d.%d", SVR_MJREV (svr), SVR_MNREV (svr), + PVR_MAJ(pvr), PVR_MIN(pvr)); + printf (" at %s MHz\n", strmhz (buf, clock)); + return 0; +} + +/* ------------------------------------------------------------------------- */ + +int +do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + ulong msr; + /* Interrupts and MMU off */ + __asm__ __volatile__ ("mfmsr %0":"=r" (msr):); + + msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR); + __asm__ __volatile__ ("mtmsr %0"::"r" (msr)); + + /* Charge the watchdog timer */ + *(vu_long *)(MPC5XXX_GPT0_COUNTER) = 0x0001000f; + *(vu_long *)(MPC5XXX_GPT0_ENABLE) = 0x9004; /* wden|ce|timer_ms */ + while(1); + + return 1; + +} + +/* ------------------------------------------------------------------------- */ + +/* + * Get timebase clock frequency (like cpu_clk in Hz) + * + */ +unsigned long get_tbclk (void) +{ + ulong tbclk; + + tbclk = (gd->bus_clk + 3L) / 4L; + + return (tbclk); +} + +/* ------------------------------------------------------------------------- */ + +#if defined(CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP) +void ft_cpu_setup(void *blob, bd_t *bd) +{ + int div = in_8((void*)CONFIG_SYS_MBAR + 0x204) & 0x0020 ? 8 : 4; + char * cpu_path = "/cpus/" OF_CPU; +#ifdef CONFIG_MPC5xxx_FEC + uchar enetaddr[6]; + char * eth_path = "/" OF_SOC "/ethernet@3000"; +#endif + + do_fixup_by_path_u32(blob, cpu_path, "timebase-frequency", OF_TBCLK, 1); + do_fixup_by_path_u32(blob, cpu_path, "bus-frequency", bd->bi_busfreq, 1); + do_fixup_by_path_u32(blob, cpu_path, "clock-frequency", bd->bi_intfreq, 1); + do_fixup_by_path_u32(blob, "/" OF_SOC, "bus-frequency", bd->bi_ipbfreq, 1); + do_fixup_by_path_u32(blob, "/" OF_SOC, "system-frequency", + bd->bi_busfreq*div, 1); +#ifdef CONFIG_MPC5xxx_FEC + eth_getenv_enetaddr("ethaddr", enetaddr); + do_fixup_by_path(blob, eth_path, "mac-address", enetaddr, 6, 0); + do_fixup_by_path(blob, eth_path, "local-mac-address", enetaddr, 6, 0); +#endif +#if defined(CONFIG_OF_IDE_FIXUP) + if (!ide_device_present(0)) { + /* NO CF card detected -> delete ata node in DTS */ + int nodeoffset = 0; + char nodename[] = "/soc5200@f0000000/ata@3a00"; + + nodeoffset = fdt_path_offset(blob, nodename); + if (nodeoffset >= 0) { + fdt_del_node(blob, nodeoffset); + } else { + printf("%s: cannot find %s node err:%s\n", + __func__, nodename, fdt_strerror(nodeoffset)); + } + } + +#endif + fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize); +} +#endif + +#ifdef CONFIG_BOOTCOUNT_LIMIT + +void bootcount_store (ulong a) +{ + volatile ulong *save_addr = (volatile ulong *) (MPC5XXX_CDM_BRDCRMB); + + *save_addr = (BOOTCOUNT_MAGIC & 0xffff0000) | a; +} + +ulong bootcount_load (void) +{ + volatile ulong *save_addr = (volatile ulong *) (MPC5XXX_CDM_BRDCRMB); + + if ((*save_addr & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000)) + return 0; + else + return (*save_addr & 0x0000ffff); +} +#endif /* CONFIG_BOOTCOUNT_LIMIT */ + +#ifdef CONFIG_MPC5xxx_FEC +/* Default initializations for FEC controllers. To override, + * create a board-specific function called: + * int board_eth_init(bd_t *bis) + */ + +int cpu_eth_init(bd_t *bis) +{ + return mpc5xxx_fec_initialize(bis); +} +#endif + +#if defined(CONFIG_WATCHDOG) +void watchdog_reset(void) +{ + int re_enable = disable_interrupts(); + reset_5xxx_watchdog(); + if (re_enable) enable_interrupts(); +} + +void reset_5xxx_watchdog(void) +{ + volatile struct mpc5xxx_gpt *gpt0 = + (struct mpc5xxx_gpt *) MPC5XXX_GPT; + + /* Trigger TIMER_0 by writing A5 to OCPW */ + clrsetbits_be32(&gpt0->emsr, 0xff000000, 0xa5000000); +} +#endif /* CONFIG_WATCHDOG */ diff --git a/arch/ppc/cpu/mpc5xxx/cpu_init.c b/arch/ppc/cpu/mpc5xxx/cpu_init.c new file mode 100644 index 0000000..9daf375 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/cpu_init.c @@ -0,0 +1,233 @@ +/* + * (C) Copyright 2000-2010 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc5xxx.h> +#include <asm/io.h> +#include <watchdog.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Breath some life into the CPU... + * + * Set up the memory map, + * initialize a bunch of registers. + */ +void cpu_init_f (void) +{ + volatile struct mpc5xxx_mmap_ctl *mm = + (struct mpc5xxx_mmap_ctl *) CONFIG_SYS_MBAR; + volatile struct mpc5xxx_lpb *lpb = + (struct mpc5xxx_lpb *) MPC5XXX_LPB; + volatile struct mpc5xxx_gpio *gpio = + (struct mpc5xxx_gpio *) MPC5XXX_GPIO; + volatile struct mpc5xxx_xlb *xlb = + (struct mpc5xxx_xlb *) MPC5XXX_XLBARB; +#if defined(CONFIG_SYS_IPBCLK_EQUALS_XLBCLK) + volatile struct mpc5xxx_cdm *cdm = + (struct mpc5xxx_cdm *) MPC5XXX_CDM; +#endif /* CONFIG_SYS_IPBCLK_EQUALS_XLBCLK */ +#if defined(CONFIG_WATCHDOG) + volatile struct mpc5xxx_gpt *gpt0 = + (struct mpc5xxx_gpt *) MPC5XXX_GPT; +#endif /* CONFIG_WATCHDOG */ + unsigned long addecr = (1 << 25); /* Boot_CS */ + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); + + /* Clear initial global data */ + memset ((void *) gd, 0, sizeof (gd_t)); + + /* + * Memory Controller: configure chip selects and enable them + */ +#if defined(CONFIG_SYS_BOOTCS_START) && defined(CONFIG_SYS_BOOTCS_SIZE) + out_be32(&mm->boot_start, START_REG(CONFIG_SYS_BOOTCS_START)); + out_be32(&mm->boot_stop, STOP_REG(CONFIG_SYS_BOOTCS_START, + CONFIG_SYS_BOOTCS_SIZE)); +#endif +#if defined(CONFIG_SYS_BOOTCS_CFG) + out_be32(&lpb->cs0_cfg, CONFIG_SYS_BOOTCS_CFG); +#endif + +#if defined(CONFIG_SYS_CS0_START) && defined(CONFIG_SYS_CS0_SIZE) + out_be32(&mm->cs0_start, START_REG(CONFIG_SYS_CS0_START)); + out_be32(&mm->cs0_stop, STOP_REG(CONFIG_SYS_CS0_START, + CONFIG_SYS_CS0_SIZE)); + /* CS0 and BOOT_CS cannot be enabled at once. */ + /* addecr |= (1 << 16); */ +#endif +#if defined(CONFIG_SYS_CS0_CFG) + out_be32(&lpb->cs0_cfg, CONFIG_SYS_CS0_CFG); +#endif + +#if defined(CONFIG_SYS_CS1_START) && defined(CONFIG_SYS_CS1_SIZE) + out_be32(&mm->cs1_start, START_REG(CONFIG_SYS_CS1_START)); + out_be32(&mm->cs1_stop, STOP_REG(CONFIG_SYS_CS1_START, + CONFIG_SYS_CS1_SIZE)); + addecr |= (1 << 17); +#endif +#if defined(CONFIG_SYS_CS1_CFG) + out_be32(&lpb->cs1_cfg, CONFIG_SYS_CS1_CFG); +#endif + +#if defined(CONFIG_SYS_CS2_START) && defined(CONFIG_SYS_CS2_SIZE) + out_be32(&mm->cs2_start, START_REG(CONFIG_SYS_CS2_START)); + out_be32(&mm->cs2_stop, STOP_REG(CONFIG_SYS_CS2_START, + CONFIG_SYS_CS2_SIZE)); + addecr |= (1 << 18); +#endif +#if defined(CONFIG_SYS_CS2_CFG) + out_be32(&lpb->cs2_cfg, CONFIG_SYS_CS2_CFG); +#endif + +#if defined(CONFIG_SYS_CS3_START) && defined(CONFIG_SYS_CS3_SIZE) + out_be32(&mm->cs3_start, START_REG(CONFIG_SYS_CS3_START)); + out_be32(&mm->cs3_stop, STOP_REG(CONFIG_SYS_CS3_START, + CONFIG_SYS_CS3_SIZE)); + addecr |= (1 << 19); +#endif +#if defined(CONFIG_SYS_CS3_CFG) + out_be32(&lpb->cs3_cfg, CONFIG_SYS_CS3_CFG); +#endif + +#if defined(CONFIG_SYS_CS4_START) && defined(CONFIG_SYS_CS4_SIZE) + out_be32(&mm->cs4_start, START_REG(CONFIG_SYS_CS4_START)); + out_be32(&mm->cs4_stop, STOP_REG(CONFIG_SYS_CS4_START, + CONFIG_SYS_CS4_SIZE)); + addecr |= (1 << 20); +#endif +#if defined(CONFIG_SYS_CS4_CFG) + out_be32(&lpb->cs4_cfg, CONFIG_SYS_CS4_CFG); +#endif + +#if defined(CONFIG_SYS_CS5_START) && defined(CONFIG_SYS_CS5_SIZE) + out_be32(&mm->cs5_start, START_REG(CONFIG_SYS_CS5_START)); + out_be32(&mm->cs5_stop, STOP_REG(CONFIG_SYS_CS5_START, + CONFIG_SYS_CS5_SIZE)); + addecr |= (1 << 21); +#endif +#if defined(CONFIG_SYS_CS5_CFG) + out_be32(&lpb->cs5_cfg, CONFIG_SYS_CS5_CFG); +#endif + + addecr |= 1; +#if defined(CONFIG_SYS_CS6_START) && defined(CONFIG_SYS_CS6_SIZE) + out_be32(&mm->cs6_start, START_REG(CONFIG_SYS_CS6_START)); + out_be32(&mm->cs6_stop, STOP_REG(CONFIG_SYS_CS6_START, + CONFIG_SYS_CS6_SIZE)); + addecr |= (1 << 26); +#endif +#if defined(CONFIG_SYS_CS6_CFG) + out_be32(&lpb->cs6_cfg, CONFIG_SYS_CS6_CFG); +#endif + +#if defined(CONFIG_SYS_CS7_START) && defined(CONFIG_SYS_CS7_SIZE) + out_be32(&mm->cs7_start, START_REG(CONFIG_SYS_CS7_START)); + out_be32(&mm->cs7_stop, STOP_REG(CONFIG_SYS_CS7_START, + CONFIG_SYS_CS7_SIZE)); + addecr |= (1 << 27); +#endif +#if defined(CONFIG_SYS_CS7_CFG) + out_be32(&lpb->cs7_cfg, CONFIG_SYS_CS7_CFG); +#endif + +#if defined(CONFIG_SYS_CS_BURST) + out_be32(&lpb->cs_burst, CONFIG_SYS_CS_BURST); +#endif +#if defined(CONFIG_SYS_CS_DEADCYCLE) + out_be32(&lpb->cs_deadcycle, CONFIG_SYS_CS_DEADCYCLE); +#endif + + /* Enable chip selects */ + out_be32(&mm->ipbi_ws_ctrl, addecr); + out_be32(&lpb->cs_ctrl, (1 << 24)); + + /* Setup pin multiplexing */ +#if defined(CONFIG_SYS_GPS_PORT_CONFIG) + out_be32(&gpio->port_config, CONFIG_SYS_GPS_PORT_CONFIG); +#endif + + /* enable timebase */ + setbits_be32(&xlb->config, (1 << 13)); + + /* Enable snooping for RAM */ + setbits_be32(&xlb->config, (1 << 15)); + out_be32(&xlb->snoop_window, CONFIG_SYS_SDRAM_BASE | 0x1d); + +#if defined(CONFIG_SYS_IPBCLK_EQUALS_XLBCLK) + /* Motorola reports IPB should better run at 133 MHz. */ + setbits_be32(&mm->ipbi_ws_ctrl, 1); + /* pci_clk_sel = 0x02, ipb_clk_sel = 0x00; */ + addecr = in_be32(&cdm->cfg); + addecr &= ~0x103; +# if defined(CONFIG_SYS_PCICLK_EQUALS_IPBCLK_DIV2) + /* pci_clk_sel = 0x01 -> IPB_CLK/2 */ + addecr |= 0x01; +# else + /* pci_clk_sel = 0x02 -> XLB_CLK/4 = IPB_CLK/4 */ + addecr |= 0x02; +# endif /* CONFIG_SYS_PCICLK_EQUALS_IPBCLK_DIV2 */ + out_be32(&cdm->cfg, addecr); +#endif /* CONFIG_SYS_IPBCLK_EQUALS_XLBCLK */ + /* Configure the XLB Arbiter */ + out_be32(&xlb->master_pri_enable, 0xff); + out_be32(&xlb->master_priority, 0x11111111); + +#if defined(CONFIG_SYS_XLB_PIPELINING) + /* Enable piplining */ + clrbits_be32(&xlb->config, (1 << 31)); +#endif + +#if defined(CONFIG_WATCHDOG) + /* Charge the watchdog timer - prescaler = 64k, count = 64k*/ + out_be32(&gpt0->cir, 0x0000ffff); + out_be32(&gpt0->emsr, 0x9004); /* wden|ce|timer_ms */ + + reset_5xxx_watchdog(); +#endif /* CONFIG_WATCHDOG */ +} + +/* + * initialize higher level parts of CPU like time base and timers + */ +int cpu_init_r (void) +{ + volatile struct mpc5xxx_intr *intr = + (struct mpc5xxx_intr *) MPC5XXX_ICTL; + + /* mask all interrupts */ + out_be32(&intr->per_mask, 0xffffff00); + setbits_be32(&intr->main_mask, 0x0001ffff); + clrbits_be32(&intr->ctrl, 0x00000f00); + /* route critical ints to normal ints */ + setbits_be32(&intr->ctrl, 0x00000001); + +#if defined(CONFIG_CMD_NET) && defined(CONFIG_MPC5xxx_FEC) + /* load FEC microcode */ + loadtask(0, 2); +#endif + + return (0); +} diff --git a/arch/ppc/cpu/mpc5xxx/firmware_sc_task_bestcomm.impl.S b/arch/ppc/cpu/mpc5xxx/firmware_sc_task_bestcomm.impl.S new file mode 100644 index 0000000..00c2312 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/firmware_sc_task_bestcomm.impl.S @@ -0,0 +1,359 @@ +/* + * Copyright (C) 2001, Software Center, Motorola China. + * + * This file contains microcode for the FEC controller of the MPC5200 CPU. + */ + +#include <config.h> + +/* sas/sccg, gas target */ +.section smartdmaInitData,"aw",@progbits /* Initialized data for task variables */ +.section smartdmaTaskTable,"aw",@progbits /* Task tables */ +.align 9 +.globl taskTable +taskTable: +.globl scEthernetRecv_Entry +scEthernetRecv_Entry: /* Task 0 */ +.long scEthernetRecv_TDT - taskTable /* Task 0 Descriptor Table */ +.long scEthernetRecv_TDT - taskTable + 0x000000a4 +.long scEthernetRecv_VarTab - taskTable /* Task 0 Variable Table */ +.long scEthernetRecv_FDT - taskTable + 0x03 /* Task 0 Function Descriptor Table & Flags */ +.long 0x00000000 +.long 0x00000000 +.long scEthernetRecv_CSave - taskTable /* Task 0 context save space */ +.long CONFIG_SYS_MBAR +.globl scEthernetXmit_Entry +scEthernetXmit_Entry: /* Task 1 */ +.long scEthernetXmit_TDT - taskTable /* Task 1 Descriptor Table */ +.long scEthernetXmit_TDT - taskTable + 0x000000d0 +.long scEthernetXmit_VarTab - taskTable /* Task 1 Variable Table */ +.long scEthernetXmit_FDT - taskTable + 0x03 /* Task 1 Function Descriptor Table & Flags */ +.long 0x00000000 +.long 0x00000000 +.long scEthernetXmit_CSave - taskTable /* Task 1 context save space */ +.long CONFIG_SYS_MBAR + + +.globl scEthernetRecv_TDT +scEthernetRecv_TDT: /* Task 0 Descriptor Table */ +.long 0xc4c50000 /* 0000: LCDEXT: idx0 = var9 + var10; idx0 once var0; idx0 += inc0 */ +.long 0x84c5e000 /* 0004: LCD: idx1 = var9 + var11; ; idx1 += inc0 */ +.long 0x10001f08 /* 0008: DRD1A: var7 = idx1; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x10000380 /* 000C: DRD1A: var0 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x00000f88 /* 0010: DRD1A: var3 = *idx1; FN=0 init=0 WS=0 RS=0 */ +.long 0x81980000 /* 0014: LCD: idx0 = var3; idx0 once var0; idx0 += inc0 */ +.long 0x10000780 /* 0018: DRD1A: var1 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x60000000 /* 001C: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ +.long 0x010cf04c /* 0020: DRD2B1: var4 = EU3(); EU3(var1,var12) */ +.long 0x82180349 /* 0024: LCD: idx0 = var4; idx0 != var13; idx0 += inc1 */ +.long 0x81c68004 /* 0028: LCD: idx1 = var3 + var13 + 4; idx1 once var0; idx1 += inc0 */ +.long 0x70000000 /* 002C: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ +.long 0x018cf04e /* 0030: DRD2B1: var6 = EU3(); EU3(var1,var14) */ +.long 0x70000000 /* 0034: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ +.long 0x020cf04f /* 0038: DRD2B1: var8 = EU3(); EU3(var1,var15) */ +.long 0x00000b88 /* 003C: DRD1A: var2 = *idx1; FN=0 init=0 WS=0 RS=0 */ +.long 0x8000d184 /* 0040: LCDEXT: idx1 = 0xf0003184; ; */ +.long 0xc6990452 /* 0044: LCDEXT: idx2 = var13; idx2 < var17; idx2 += inc2 */ +.long 0x81486010 /* 0048: LCD: idx3 = var2 + var16; ; idx3 += inc2 */ +.long 0x006acf88 /* 004C: DRD1A: *idx3 = *idx1; FN=0 init=3 WS=1 RS=1 */ +.long 0x8000d184 /* 0050: LCDEXT: idx1 = 0xf0003184; ; */ +.long 0x86810492 /* 0054: LCD: idx2 = var13, idx3 = var2; idx2 < var18; idx2 += inc2, idx3 += inc2 */ +.long 0x006acf88 /* 0058: DRD1A: *idx3 = *idx1; FN=0 init=3 WS=1 RS=1 */ +.long 0x8000d184 /* 005C: LCDEXT: idx1 = 0xf0003184; ; */ +.long 0x868184d2 /* 0060: LCD: idx2 = var13, idx3 = var3; idx2 < var19; idx2 += inc2, idx3 += inc2 */ +.long 0x000acf88 /* 0064: DRD1A: *idx3 = *idx1; FN=0 init=0 WS=1 RS=1 */ +.long 0xc318839b /* 0068: LCDEXT: idx1 = var6; idx1 == var14; idx1 += inc3 */ +.long 0x80190000 /* 006C: LCD: idx2 = var0; idx2 once var0; idx2 += inc0 */ +.long 0x04008468 /* 0070: DRD1A: idx1 = var13; FN=0 INT init=0 WS=0 RS=0 */ +.long 0xc4038358 /* 0074: LCDEXT: idx1 = var8, idx2 = var7; idx1 == var13; idx1 += inc3, idx2 += inc0 */ +.long 0x81c50000 /* 0078: LCD: idx3 = var3 + var10; idx3 once var0; idx3 += inc0 */ +.long 0x1000cb18 /* 007C: DRD1A: *idx2 = idx3; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x00000f18 /* 0080: DRD1A: var3 = idx3; FN=0 init=0 WS=0 RS=0 */ +.long 0xc4188364 /* 0084: LCDEXT: idx1 = var8; idx1 > var13; idx1 += inc4 */ +.long 0x83990000 /* 0088: LCD: idx2 = var7; idx2 once var0; idx2 += inc0 */ +.long 0x10000c00 /* 008C: DRD1A: var3 = var0; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x0000c800 /* 0090: DRD1A: *idx2 = var0; FN=0 init=0 WS=0 RS=0 */ +.long 0x81988000 /* 0094: LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */ +.long 0x10000788 /* 0098: DRD1A: var1 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x60000000 /* 009C: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ +.long 0x080cf04c /* 00A0: DRD2B1: idx0 = EU3(); EU3(var1,var12) */ +.long 0x000001f8 /* 00A4(:0): NOP */ + + +.globl scEthernetXmit_TDT +scEthernetXmit_TDT: /* Task 1 Descriptor Table */ +.long 0x80024800 /* 0000: LCDEXT: idx0 = 0xf0008800; ; */ +.long 0x85c60004 /* 0004: LCD: idx1 = var11 + var12 + 4; idx1 once var0; idx1 += inc0 */ +.long 0x10002308 /* 0008: DRD1A: var8 = idx1; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x10000f88 /* 000C: DRD1A: var3 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x00000380 /* 0010: DRD1A: var0 = *idx0; FN=0 init=0 WS=0 RS=0 */ +.long 0x81980000 /* 0014: LCD: idx0 = var3; idx0 once var0; idx0 += inc0 */ +.long 0x10000780 /* 0018: DRD1A: var1 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x60000000 /* 001C: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ +.long 0x024cf04d /* 0020: DRD2B1: var9 = EU3(); EU3(var1,var13) */ +.long 0x84980309 /* 0024: LCD: idx0 = var9; idx0 != var12; idx0 += inc1 */ +.long 0xc0004003 /* 0028: LCDEXT: idx1 = 0x00000003; ; */ +.long 0x81c60004 /* 002C: LCD: idx2 = var3 + var12 + 4; idx2 once var0; idx2 += inc0 */ +.long 0x70000000 /* 0030: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ +.long 0x010cf04e /* 0034: DRD2B1: var4 = EU3(); EU3(var1,var14) */ +.long 0x70000000 /* 0038: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ +.long 0x014cf04f /* 003C: DRD2B1: var5 = EU3(); EU3(var1,var15) */ +.long 0x70000000 /* 0040: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ +.long 0x028cf050 /* 0044: DRD2B1: var10 = EU3(); EU3(var1,var16) */ +.long 0x70000000 /* 0048: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ +.long 0x018cf051 /* 004C: DRD2B1: var6 = EU3(); EU3(var1,var17) */ +.long 0x10000b90 /* 0050: DRD1A: var2 = *idx2; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x60000000 /* 0054: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ +.long 0x01ccf0a1 /* 0058: DRD2B1: var7 = EU3(); EU3(var2,idx1) */ +.long 0xc2988312 /* 005C: LCDEXT: idx1 = var5; idx1 > var12; idx1 += inc2 */ +.long 0x83490000 /* 0060: LCD: idx2 = var6 + var18; idx2 once var0; idx2 += inc0 */ +.long 0x00001b10 /* 0064: DRD1A: var6 = idx2; FN=0 init=0 WS=0 RS=0 */ +.long 0x8000d1a4 /* 0068: LCDEXT: idx1 = 0xf00031a4; ; */ +.long 0x8301031c /* 006C: LCD: idx2 = var6, idx3 = var2; idx2 > var12; idx2 += inc3, idx3 += inc4 */ +.long 0x008ac798 /* 0070: DRD1A: *idx1 = *idx3; FN=0 init=4 WS=1 RS=1 */ +.long 0x8000d1a4 /* 0074: LCDEXT: idx1 = 0xf00031a4; ; */ +.long 0xc1430000 /* 0078: LCDEXT: idx2 = var2 + var6; idx2 once var0; idx2 += inc0 */ +.long 0x82998312 /* 007C: LCD: idx3 = var5; idx3 > var12; idx3 += inc2 */ +.long 0x088ac790 /* 0080: DRD1A: *idx1 = *idx2; FN=0 TFD init=4 WS=1 RS=1 */ +.long 0x81988000 /* 0084: LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */ +.long 0x60000001 /* 0088: DRD2A: EU0=0 EU1=0 EU2=0 EU3=1 EXT init=0 WS=0 RS=0 */ +.long 0x0c4cfc4d /* 008C: DRD2B1: *idx1 = EU3(); EU3(*idx1,var13) */ +.long 0xc21883ad /* 0090: LCDEXT: idx1 = var4; idx1 == var14; idx1 += inc5 */ +.long 0x80190000 /* 0094: LCD: idx2 = var0; idx2 once var0; idx2 += inc0 */ +.long 0x04008460 /* 0098: DRD1A: idx1 = var12; FN=0 INT init=0 WS=0 RS=0 */ +.long 0xc4052305 /* 009C: LCDEXT: idx1 = var8, idx2 = var10; idx2 == var12; idx1 += inc0, idx2 += inc5 */ +.long 0x81c98000 /* 00A0: LCD: idx3 = var3 + var19; idx3 once var0; idx3 += inc0 */ +.long 0x1000c718 /* 00A4: DRD1A: *idx1 = idx3; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x00000f18 /* 00A8: DRD1A: var3 = idx3; FN=0 init=0 WS=0 RS=0 */ +.long 0xc4188000 /* 00AC: LCDEXT: idx1 = var8; idx1 once var0; idx1 += inc0 */ +.long 0x85190312 /* 00B0: LCD: idx2 = var10; idx2 > var12; idx2 += inc2 */ +.long 0x10000c00 /* 00B4: DRD1A: var3 = var0; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x1000c400 /* 00B8: DRD1A: *idx1 = var0; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x00008860 /* 00BC: DRD1A: idx2 = var12; FN=0 init=0 WS=0 RS=0 */ +.long 0x81988000 /* 00C0: LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */ +.long 0x10000788 /* 00C4: DRD1A: var1 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x60000000 /* 00C8: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ +.long 0x080cf04d /* 00CC: DRD2B1: idx0 = EU3(); EU3(var1,var13) */ +.long 0x000001f8 /* 00D0(:0): NOP */ + +.align 8 + +.globl scEthernetRecv_VarTab +scEthernetRecv_VarTab: /* Task 0 Variable Table */ +.long 0x00000000 /* var[0] */ +.long 0x00000000 /* var[1] */ +.long 0x00000000 /* var[2] */ +.long 0x00000000 /* var[3] */ +.long 0x00000000 /* var[4] */ +.long 0x00000000 /* var[5] */ +.long 0x00000000 /* var[6] */ +.long 0x00000000 /* var[7] */ +.long 0x00000000 /* var[8] */ +.long (CONFIG_SYS_MBAR + 0x8800) /* var[9] */ +.long 0x00000008 /* var[10] */ +.long 0x0000000c /* var[11] */ +.long 0x80000000 /* var[12] */ +.long 0x00000000 /* var[13] */ +.long 0x10000000 /* var[14] */ +.long 0x20000000 /* var[15] */ +.long 0x000005e4 /* var[16] */ +.long 0x0000000e /* var[17] */ +.long 0x000005e0 /* var[18] */ +.long 0x00000004 /* var[19] */ +.long 0x00000000 /* var[20] */ +.long 0x00000000 /* var[21] */ +.long 0x00000000 /* var[22] */ +.long 0x00000000 /* var[23] */ +.long 0x00000000 /* inc[0] */ +.long 0x60000000 /* inc[1] */ +.long 0x20000001 /* inc[2] */ +.long 0x80000000 /* inc[3] */ +.long 0x40000000 /* inc[4] */ +.long 0x00000000 /* inc[5] */ +.long 0x00000000 /* inc[6] */ +.long 0x00000000 /* inc[7] */ + +.align 8 + +.globl scEthernetXmit_VarTab +scEthernetXmit_VarTab: /* Task 1 Variable Table */ +.long 0x00000000 /* var[0] */ +.long 0x00000000 /* var[1] */ +.long 0x00000000 /* var[2] */ +.long 0x00000000 /* var[3] */ +.long 0x00000000 /* var[4] */ +.long 0x00000000 /* var[5] */ +.long 0x00000000 /* var[6] */ +.long 0x00000000 /* var[7] */ +.long 0x00000000 /* var[8] */ +.long 0x00000000 /* var[9] */ +.long 0x00000000 /* var[10] */ +.long (CONFIG_SYS_MBAR + 0x8800) /* var[11] */ +.long 0x00000000 /* var[12] */ +.long 0x80000000 /* var[13] */ +.long 0x10000000 /* var[14] */ +.long 0x08000000 /* var[15] */ +.long 0x20000000 /* var[16] */ +.long 0x0000ffff /* var[17] */ +.long 0xffffffff /* var[18] */ +.long 0x00000008 /* var[19] */ +.long 0x00000000 /* var[20] */ +.long 0x00000000 /* var[21] */ +.long 0x00000000 /* var[22] */ +.long 0x00000000 /* var[23] */ +.long 0x00000000 /* inc[0] */ +.long 0x60000000 /* inc[1] */ +.long 0x40000000 /* inc[2] */ +.long 0x4000ffff /* inc[3] */ +.long 0xe0000001 /* inc[4] */ +.long 0x80000000 /* inc[5] */ +.long 0x00000000 /* inc[6] */ +.long 0x00000000 /* inc[7] */ + +.align 8 + +.globl scEthernetRecv_FDT +scEthernetRecv_FDT: /* Task 0 Function Descriptor Table */ +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x21800000 /* and(), EU# 3 */ +.long 0x21400000 /* andn(), EU# 3 */ +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 + +.align 8 + +.globl scEthernetXmit_FDT +scEthernetXmit_FDT: /* Task 1 Function Descriptor Table */ +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x21800000 /* and(), EU# 3 */ +.long 0x21400000 /* andn(), EU# 3 */ +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 + + +.globl scEthernetRecv_CSave +scEthernetRecv_CSave: /* Task 0 context save space */ +.space 128, 0x0 + + +.globl scEthernetXmit_CSave +scEthernetXmit_CSave: /* Task 1 context save space */ +.space 128, 0x0 diff --git a/arch/ppc/cpu/mpc5xxx/i2c.c b/arch/ppc/cpu/mpc5xxx/i2c.c new file mode 100644 index 0000000..4f7f716 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/i2c.c @@ -0,0 +1,442 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_HARD_I2C + +#include <mpc5xxx.h> +#include <i2c.h> + +#if (CONFIG_SYS_I2C_MODULE == 2) +#define I2C_BASE MPC5XXX_I2C2 +#elif (CONFIG_SYS_I2C_MODULE == 1) +#define I2C_BASE MPC5XXX_I2C1 +#else +#error CONFIG_SYS_I2C_MODULE is not properly configured +#endif + +#define I2C_TIMEOUT 6667 +#define I2C_RETRIES 3 + +struct mpc5xxx_i2c_tap { + int scl2tap; + int tap2tap; +}; + +static int mpc_reg_in (volatile u32 *reg); +static void mpc_reg_out (volatile u32 *reg, int val, int mask); +static int wait_for_bb (void); +static int wait_for_pin (int *status); +static int do_address (uchar chip, char rdwr_flag); +static int send_bytes (uchar chip, char *buf, int len); +static int receive_bytes (uchar chip, char *buf, int len); +static int mpc_get_fdr (int); + +static int mpc_reg_in(volatile u32 *reg) +{ + int ret = *reg >> 24; + __asm__ __volatile__ ("eieio"); + return ret; +} + +static void mpc_reg_out(volatile u32 *reg, int val, int mask) +{ + int tmp; + + if (!mask) { + *reg = val << 24; + } else { + tmp = mpc_reg_in(reg); + *reg = ((tmp & ~mask) | (val & mask)) << 24; + } + __asm__ __volatile__ ("eieio"); + + return; +} + +static int wait_for_bb(void) +{ + struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; + int timeout = I2C_TIMEOUT; + int status; + + status = mpc_reg_in(®s->msr); + + while (timeout-- && (status & I2C_BB)) { +#if 1 + volatile int temp; + mpc_reg_out(®s->mcr, I2C_STA, I2C_STA); + temp = mpc_reg_in(®s->mdr); + mpc_reg_out(®s->mcr, 0, I2C_STA); + mpc_reg_out(®s->mcr, 0, 0); + mpc_reg_out(®s->mcr, I2C_EN, 0); +#endif + udelay(15); + status = mpc_reg_in(®s->msr); + } + + return (status & I2C_BB); +} + +static int wait_for_pin(int *status) +{ + struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; + int timeout = I2C_TIMEOUT; + + *status = mpc_reg_in(®s->msr); + + while (timeout-- && !(*status & I2C_IF)) { + udelay(15); + *status = mpc_reg_in(®s->msr); + } + + if (!(*status & I2C_IF)) { + return -1; + } + + mpc_reg_out(®s->msr, 0, I2C_IF); + + return 0; +} + +static int do_address(uchar chip, char rdwr_flag) +{ + struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; + int status; + + chip <<= 1; + + if (rdwr_flag) { + chip |= 1; + } + + mpc_reg_out(®s->mcr, I2C_TX, I2C_TX); + mpc_reg_out(®s->mdr, chip, 0); + + if (wait_for_pin(&status)) { + return -2; + } + + if (status & I2C_RXAK) { + return -3; + } + + return 0; +} + +static int send_bytes(uchar chip, char *buf, int len) +{ + struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; + int wrcount; + int status; + + for (wrcount = 0; wrcount < len; ++wrcount) { + + mpc_reg_out(®s->mdr, buf[wrcount], 0); + + if (wait_for_pin(&status)) { + break; + } + + if (status & I2C_RXAK) { + break; + } + + } + + return !(wrcount == len); +} + +static int receive_bytes(uchar chip, char *buf, int len) +{ + struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; + int dummy = 1; + int rdcount = 0; + int status; + int i; + + mpc_reg_out(®s->mcr, 0, I2C_TX); + + for (i = 0; i < len; ++i) { + buf[rdcount] = mpc_reg_in(®s->mdr); + + if (dummy) { + dummy = 0; + } else { + rdcount++; + } + + + if (wait_for_pin(&status)) { + return -4; + } + } + + mpc_reg_out(®s->mcr, I2C_TXAK, I2C_TXAK); + buf[rdcount++] = mpc_reg_in(®s->mdr); + + if (wait_for_pin(&status)) { + return -5; + } + + mpc_reg_out(®s->mcr, 0, I2C_TXAK); + + return 0; +} + +#if defined(CONFIG_SYS_I2C_INIT_MPC5XXX) + +#define FDR510(x) (u8) (((x & 0x20) >> 3) | (x & 0x3)) +#define FDR432(x) (u8) ((x & 0x1C) >> 2) +/* + * Reset any i2c devices that may have been interrupted during a system reset. + * Normally this would be accomplished by clocking the line until SCL and SDA + * are released and then sending a start condtiion (From an Atmel datasheet). + * There is no direct access to the i2c pins so instead create start commands + * through the i2c interface. Send a start command then delay for the SDA Hold + * time, repeat this by disabling/enabling the bus a total of 9 times. + */ +static void send_reset(void) +{ + struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; + int i; + u32 delay; + u8 fdr; + int SDA_Tap[] = { 3, 3, 4, 4, 1, 1, 2, 2}; + struct mpc5xxx_i2c_tap scltap[] = { + {4, 1}, + {4, 2}, + {6, 4}, + {6, 8}, + {14, 16}, + {30, 32}, + {62, 64}, + {126, 128} + }; + + fdr = (u8)mpc_reg_in(®s->mfdr); + + delay = scltap[FDR432(fdr)].scl2tap + ((SDA_Tap[FDR510(fdr)] - 1) * \ + scltap[FDR432(fdr)].tap2tap) + 3; + + for (i = 0; i < 9; i++) { + mpc_reg_out(®s->mcr, I2C_EN|I2C_STA|I2C_TX, I2C_INIT_MASK); + udelay(delay); + mpc_reg_out(®s->mcr, 0, I2C_INIT_MASK); + udelay(delay); + } + + mpc_reg_out(®s->mcr, I2C_EN, I2C_INIT_MASK); +} +#endif /* CONFIG_SYS_I2c_INIT_MPC5XXX */ + +/**************** I2C API ****************/ + +void i2c_init(int speed, int saddr) +{ + struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; + + mpc_reg_out(®s->mcr, 0, 0); + mpc_reg_out(®s->madr, saddr << 1, 0); + + /* Set clock + */ + mpc_reg_out(®s->mfdr, mpc_get_fdr(speed), 0); + + /* Enable module + */ + mpc_reg_out(®s->mcr, I2C_EN, I2C_INIT_MASK); + mpc_reg_out(®s->msr, 0, I2C_IF); + +#if defined(CONFIG_SYS_I2C_INIT_MPC5XXX) + send_reset(); +#endif + return; +} + +static int mpc_get_fdr(int speed) +{ + static int fdr = -1; + + if (fdr == -1) { + ulong best_speed = 0; + ulong divider; + ulong ipb, scl; + ulong bestmatch = 0xffffffffUL; + int best_i = 0, best_j = 0, i, j; + int SCL_Tap[] = { 9, 10, 12, 15, 5, 6, 7, 8}; + struct mpc5xxx_i2c_tap scltap[] = { + {4, 1}, + {4, 2}, + {6, 4}, + {6, 8}, + {14, 16}, + {30, 32}, + {62, 64}, + {126, 128} + }; + + ipb = gd->ipb_clk; + for (i = 7; i >= 0; i--) { + for (j = 7; j >= 0; j--) { + scl = 2 * (scltap[j].scl2tap + + (SCL_Tap[i] - 1) * scltap[j].tap2tap + 2); + if (ipb <= speed*scl) { + if ((speed*scl - ipb) < bestmatch) { + bestmatch = speed*scl - ipb; + best_i = i; + best_j = j; + best_speed = ipb/scl; + } + } + } + } + divider = (best_i & 3) | ((best_i & 4) << 3) | (best_j << 2); + if (gd->flags & GD_FLG_RELOC) { + fdr = divider; + } else { + if (gd->have_console) + printf("%ld kHz, ", best_speed / 1000); + return divider; + } + } + + return fdr; +} + +int i2c_probe(uchar chip) +{ + struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; + int i; + + for (i = 0; i < I2C_RETRIES; i++) { + mpc_reg_out(®s->mcr, I2C_STA, I2C_STA); + + if (! do_address(chip, 0)) { + mpc_reg_out(®s->mcr, 0, I2C_STA); + udelay(500); + break; + } + + mpc_reg_out(®s->mcr, 0, I2C_STA); + udelay(500); + } + + return (i == I2C_RETRIES); +} + +int i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len) +{ + char xaddr[4]; + struct mpc5xxx_i2c * regs = (struct mpc5xxx_i2c *)I2C_BASE; + int ret = -1; + + xaddr[0] = (addr >> 24) & 0xFF; + xaddr[1] = (addr >> 16) & 0xFF; + xaddr[2] = (addr >> 8) & 0xFF; + xaddr[3] = addr & 0xFF; + + if (wait_for_bb()) { + if (gd->have_console) + printf("i2c_read: bus is busy\n"); + goto Done; + } + + mpc_reg_out(®s->mcr, I2C_STA, I2C_STA); + if (do_address(chip, 0)) { + if (gd->have_console) + printf("i2c_read: failed to address chip\n"); + goto Done; + } + + if (send_bytes(chip, &xaddr[4-alen], alen)) { + if (gd->have_console) + printf("i2c_read: send_bytes failed\n"); + goto Done; + } + + mpc_reg_out(®s->mcr, I2C_RSTA, I2C_RSTA); + if (do_address(chip, 1)) { + if (gd->have_console) + printf("i2c_read: failed to address chip\n"); + goto Done; + } + + if (receive_bytes(chip, (char *)buf, len)) { + if (gd->have_console) + printf("i2c_read: receive_bytes failed\n"); + goto Done; + } + + ret = 0; +Done: + mpc_reg_out(®s->mcr, 0, I2C_STA); + return ret; +} + +int i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len) +{ + char xaddr[4]; + struct mpc5xxx_i2c *regs = (struct mpc5xxx_i2c *)I2C_BASE; + int ret = -1; + + xaddr[0] = (addr >> 24) & 0xFF; + xaddr[1] = (addr >> 16) & 0xFF; + xaddr[2] = (addr >> 8) & 0xFF; + xaddr[3] = addr & 0xFF; + + if (wait_for_bb()) { + if (gd->have_console) + printf("i2c_write: bus is busy\n"); + goto Done; + } + + mpc_reg_out(®s->mcr, I2C_STA, I2C_STA); + if (do_address(chip, 0)) { + if (gd->have_console) + printf("i2c_write: failed to address chip\n"); + goto Done; + } + + if (send_bytes(chip, &xaddr[4-alen], alen)) { + if (gd->have_console) + printf("i2c_write: send_bytes failed\n"); + goto Done; + } + + if (send_bytes(chip, (char *)buf, len)) { + if (gd->have_console) + printf("i2c_write: send_bytes failed\n"); + goto Done; + } + + ret = 0; +Done: + mpc_reg_out(®s->mcr, 0, I2C_STA); + return ret; +} + +#endif /* CONFIG_HARD_I2C */ diff --git a/arch/ppc/cpu/mpc5xxx/ide.c b/arch/ppc/cpu/mpc5xxx/ide.c new file mode 100644 index 0000000..d337abb --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/ide.c @@ -0,0 +1,99 @@ +/* + * (C) Copyright 2004 + * Pierre AUBERT, Staubli Faverges, <p.aubert@staubli.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Init is derived from Linux code. + */ +#include <common.h> + +#if defined(CONFIG_CMD_IDE) +#include <mpc5xxx.h> + +DECLARE_GLOBAL_DATA_PTR; + +#define CALC_TIMING(t) (t + period - 1) / period + +#ifdef CONFIG_IDE_RESET +extern void init_ide_reset (void); +#endif + +int ide_preinit (void) +{ + long period, t0, t1, t2_8, t2_16, t4, ta; + vu_long reg; + struct mpc5xxx_sdma *psdma = (struct mpc5xxx_sdma *) MPC5XXX_SDMA; + + reg = *(vu_long *) MPC5XXX_GPS_PORT_CONFIG; +#if defined(CONFIG_SYS_ATA_CS_ON_I2C2) + /* ATA cs0/1 on i2c2 clk/io */ + reg = (reg & ~0x03000000ul) | 0x02000000ul; +#elif defined(CONFIG_SYS_ATA_CS_ON_TIMER01) + /* ATA cs0/1 on Timer 0/1 */ + reg = (reg & ~0x03000000ul) | 0x03000000ul; +#else + /* ATA cs0/1 on Local Plus cs4/5 */ + reg = (reg & ~0x03000000ul) | 0x01000000ul; +#endif /* CONFIG_TOTAL5200 */ + *(vu_long *) MPC5XXX_GPS_PORT_CONFIG = reg; + + /* All sample codes do that... */ + *(vu_long *) MPC5XXX_ATA_SHARE_COUNT = 0; + +#if defined(CONFIG_UC101) + /* Configure and reset host */ + *(vu_long *) MPC5XXX_ATA_HOST_CONFIG = + MPC5xxx_ATA_HOSTCONF_SMR | MPC5xxx_ATA_HOSTCONF_FR; + udelay (10); + *(vu_long *) MPC5XXX_ATA_HOST_CONFIG = 0; +#else + /* Configure and reset host */ + *(vu_long *) MPC5XXX_ATA_HOST_CONFIG = MPC5xxx_ATA_HOSTCONF_IORDY | + MPC5xxx_ATA_HOSTCONF_SMR | MPC5xxx_ATA_HOSTCONF_FR; + udelay (10); + *(vu_long *) MPC5XXX_ATA_HOST_CONFIG = MPC5xxx_ATA_HOSTCONF_IORDY; +#endif + + /* Disable prefetch on Commbus */ + psdma->PtdCntrl |= 1; + + /* Init timings : we use PIO mode 0 timings */ + period = 1000000000 / gd->ipb_clk; /* period in ns */ + + t0 = CALC_TIMING (600); + t2_8 = CALC_TIMING (290); + t2_16 = CALC_TIMING (165); + reg = (t0 << 24) | (t2_8 << 16) | (t2_16 << 8); + *(vu_long *) MPC5XXX_ATA_PIO1 = reg; + + t4 = CALC_TIMING (30); + t1 = CALC_TIMING (70); + ta = CALC_TIMING (35); + reg = (t4 << 24) | (t1 << 16) | (ta << 8); + + *(vu_long *) MPC5XXX_ATA_PIO2 = reg; + +#ifdef CONFIG_IDE_RESET + init_ide_reset (); +#endif /* CONFIG_IDE_RESET */ + + return (0); +} +#endif diff --git a/arch/ppc/cpu/mpc5xxx/interrupts.c b/arch/ppc/cpu/mpc5xxx/interrupts.c new file mode 100644 index 0000000..6035771 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/interrupts.c @@ -0,0 +1,346 @@ +/* + * (C) Copyright 2006 + * Detlev Zundel, DENX Software Engineering, dzu@denx.de + * + * (C) Copyright -2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2001 + * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* this section was ripped out of arch/ppc/syslib/mpc52xx_pic.c in the + * Linux 2.6 source with the following copyright. + * + * Based on (well, mostly copied from) the code from the 2.4 kernel by + * Dale Farnsworth <dfarnsworth@mvista.com> and Kent Borg. + * + * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com> + * Copyright (C) 2003 Montavista Software, Inc + */ + +#include <common.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <command.h> + +struct irq_action { + interrupt_handler_t *handler; + void *arg; + ulong count; +}; + +static struct irq_action irq_handlers[NR_IRQS]; + +static struct mpc5xxx_intr *intr; +static struct mpc5xxx_sdma *sdma; + +static void mpc5xxx_ic_disable(unsigned int irq) +{ + u32 val; + + if (irq == MPC5XXX_IRQ0) { + val = in_be32(&intr->ctrl); + val &= ~(1 << 11); + out_be32(&intr->ctrl, val); + } else if (irq < MPC5XXX_IRQ1) { + BUG(); + } else if (irq <= MPC5XXX_IRQ3) { + val = in_be32(&intr->ctrl); + val &= ~(1 << (10 - (irq - MPC5XXX_IRQ1))); + out_be32(&intr->ctrl, val); + } else if (irq < MPC5XXX_SDMA_IRQ_BASE) { + val = in_be32(&intr->main_mask); + val |= 1 << (16 - (irq - MPC5XXX_MAIN_IRQ_BASE)); + out_be32(&intr->main_mask, val); + } else if (irq < MPC5XXX_PERP_IRQ_BASE) { + val = in_be32(&sdma->IntMask); + val |= 1 << (irq - MPC5XXX_SDMA_IRQ_BASE); + out_be32(&sdma->IntMask, val); + } else { + val = in_be32(&intr->per_mask); + val |= 1 << (31 - (irq - MPC5XXX_PERP_IRQ_BASE)); + out_be32(&intr->per_mask, val); + } +} + +static void mpc5xxx_ic_enable(unsigned int irq) +{ + u32 val; + + if (irq == MPC5XXX_IRQ0) { + val = in_be32(&intr->ctrl); + val |= 1 << 11; + out_be32(&intr->ctrl, val); + } else if (irq < MPC5XXX_IRQ1) { + BUG(); + } else if (irq <= MPC5XXX_IRQ3) { + val = in_be32(&intr->ctrl); + val |= 1 << (10 - (irq - MPC5XXX_IRQ1)); + out_be32(&intr->ctrl, val); + } else if (irq < MPC5XXX_SDMA_IRQ_BASE) { + val = in_be32(&intr->main_mask); + val &= ~(1 << (16 - (irq - MPC5XXX_MAIN_IRQ_BASE))); + out_be32(&intr->main_mask, val); + } else if (irq < MPC5XXX_PERP_IRQ_BASE) { + val = in_be32(&sdma->IntMask); + val &= ~(1 << (irq - MPC5XXX_SDMA_IRQ_BASE)); + out_be32(&sdma->IntMask, val); + } else { + val = in_be32(&intr->per_mask); + val &= ~(1 << (31 - (irq - MPC5XXX_PERP_IRQ_BASE))); + out_be32(&intr->per_mask, val); + } +} + +static void mpc5xxx_ic_ack(unsigned int irq) +{ + u32 val; + + /* + * Only some irqs are reset here, others in interrupting hardware. + */ + + switch (irq) { + case MPC5XXX_IRQ0: + val = in_be32(&intr->ctrl); + val |= 0x08000000; + out_be32(&intr->ctrl, val); + break; + case MPC5XXX_CCS_IRQ: + val = in_be32(&intr->enc_status); + val |= 0x00000400; + out_be32(&intr->enc_status, val); + break; + case MPC5XXX_IRQ1: + val = in_be32(&intr->ctrl); + val |= 0x04000000; + out_be32(&intr->ctrl, val); + break; + case MPC5XXX_IRQ2: + val = in_be32(&intr->ctrl); + val |= 0x02000000; + out_be32(&intr->ctrl, val); + break; + case MPC5XXX_IRQ3: + val = in_be32(&intr->ctrl); + val |= 0x01000000; + out_be32(&intr->ctrl, val); + break; + default: + if (irq >= MPC5XXX_SDMA_IRQ_BASE + && irq < (MPC5XXX_SDMA_IRQ_BASE + MPC5XXX_SDMA_IRQ_NUM)) { + out_be32(&sdma->IntPend, + 1 << (irq - MPC5XXX_SDMA_IRQ_BASE)); + } + break; + } +} + +static void mpc5xxx_ic_disable_and_ack(unsigned int irq) +{ + mpc5xxx_ic_disable(irq); + mpc5xxx_ic_ack(irq); +} + +static void mpc5xxx_ic_end(unsigned int irq) +{ + mpc5xxx_ic_enable(irq); +} + +void mpc5xxx_init_irq(void) +{ + u32 intr_ctrl; + + /* Remap the necessary zones */ + intr = (struct mpc5xxx_intr *)(MPC5XXX_ICTL); + sdma = (struct mpc5xxx_sdma *)(MPC5XXX_SDMA); + + /* Disable all interrupt sources. */ + out_be32(&sdma->IntPend, 0xffffffff); /* 1 means clear pending */ + out_be32(&sdma->IntMask, 0xffffffff); /* 1 means disabled */ + out_be32(&intr->per_mask, 0x7ffffc00); /* 1 means disabled */ + out_be32(&intr->main_mask, 0x00010fff); /* 1 means disabled */ + intr_ctrl = in_be32(&intr->ctrl); + intr_ctrl |= 0x0f000000 | /* clear IRQ 0-3 */ + 0x00ff0000 | /* IRQ 0-3 level sensitive low active */ + 0x00001000 | /* MEE master external enable */ + 0x00000000 | /* 0 means disable IRQ 0-3 */ + 0x00000001; /* CEb route critical normally */ + out_be32(&intr->ctrl, intr_ctrl); + + /* Zero a bunch of the priority settings. */ + out_be32(&intr->per_pri1, 0); + out_be32(&intr->per_pri2, 0); + out_be32(&intr->per_pri3, 0); + out_be32(&intr->main_pri1, 0); + out_be32(&intr->main_pri2, 0); +} + +int mpc5xxx_get_irq(struct pt_regs *regs) +{ + u32 status; + int irq = -1; + + status = in_be32(&intr->enc_status); + + if (status & 0x00000400) { /* critical */ + irq = (status >> 8) & 0x3; + if (irq == 2) /* high priority peripheral */ + goto peripheral; + irq += MPC5XXX_CRIT_IRQ_BASE; + } else if (status & 0x00200000) { /* main */ + irq = (status >> 16) & 0x1f; + if (irq == 4) /* low priority peripheral */ + goto peripheral; + irq += MPC5XXX_MAIN_IRQ_BASE; + } else if (status & 0x20000000) { /* peripheral */ + peripheral: + irq = (status >> 24) & 0x1f; + if (irq == 0) { /* bestcomm */ + status = in_be32(&sdma->IntPend); + irq = ffs(status) + MPC5XXX_SDMA_IRQ_BASE - 1; + } else + irq += MPC5XXX_PERP_IRQ_BASE; + } + + return irq; +} + +/****************************************************************************/ + +int interrupt_init_cpu(ulong * decrementer_count) +{ + *decrementer_count = get_tbclk() / CONFIG_SYS_HZ; + + mpc5xxx_init_irq(); + + return (0); +} + +/****************************************************************************/ + +/* + * Handle external interrupts + */ +void external_interrupt(struct pt_regs *regs) +{ + int irq, unmask = 1; + + irq = mpc5xxx_get_irq(regs); + + mpc5xxx_ic_disable_and_ack(irq); + + enable_interrupts(); + + if (irq_handlers[irq].handler != NULL) + (*irq_handlers[irq].handler) (irq_handlers[irq].arg); + else { + printf("\nBogus External Interrupt IRQ %d\n", irq); + /* + * turn off the bogus interrupt, otherwise it + * might repeat forever + */ + unmask = 0; + } + + if (unmask) + mpc5xxx_ic_end(irq); +} + +void timer_interrupt_cpu(struct pt_regs *regs) +{ + /* nothing to do here */ + return; +} + +/****************************************************************************/ + +/* + * Install and free a interrupt handler. + */ + +void irq_install_handler(int irq, interrupt_handler_t * handler, void *arg) +{ + if (irq < 0 || irq >= NR_IRQS) { + printf("irq_install_handler: bad irq number %d\n", irq); + return; + } + + if (irq_handlers[irq].handler != NULL) + printf("irq_install_handler: 0x%08lx replacing 0x%08lx\n", + (ulong) handler, (ulong) irq_handlers[irq].handler); + + irq_handlers[irq].handler = handler; + irq_handlers[irq].arg = arg; + + mpc5xxx_ic_enable(irq); +} + +void irq_free_handler(int irq) +{ + if (irq < 0 || irq >= NR_IRQS) { + printf("irq_free_handler: bad irq number %d\n", irq); + return; + } + + mpc5xxx_ic_disable(irq); + + irq_handlers[irq].handler = NULL; + irq_handlers[irq].arg = NULL; +} + +/****************************************************************************/ + +#if defined(CONFIG_CMD_IRQ) +void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[]) +{ + int irq, re_enable; + u32 intr_ctrl; + char *irq_config[] = { "level sensitive, active high", + "edge sensitive, rising active edge", + "edge sensitive, falling active edge", + "level sensitive, active low" + }; + + re_enable = disable_interrupts(); + + intr_ctrl = in_be32(&intr->ctrl); + printf("Interrupt configuration:\n"); + + for (irq = 0; irq <= 3; irq++) { + printf("IRQ%d: %s\n", irq, + irq_config[(intr_ctrl >> (22 - 2 * irq)) & 0x3]); + } + + puts("\nInterrupt-Information:\n" "Nr Routine Arg Count\n"); + + for (irq = 0; irq < NR_IRQS; irq++) + if (irq_handlers[irq].handler != NULL) + printf("%02d %08lx %08lx %ld\n", irq, + (ulong) irq_handlers[irq].handler, + (ulong) irq_handlers[irq].arg, + irq_handlers[irq].count); + + if (re_enable) + enable_interrupts(); +} +#endif diff --git a/arch/ppc/cpu/mpc5xxx/io.S b/arch/ppc/cpu/mpc5xxx/io.S new file mode 100644 index 0000000..2178a26 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/io.S @@ -0,0 +1,128 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Andreas Heppel <aheppel@sysgo.de> + * Copyright (C) 2003 Wolfgang Denk <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <ppc_asm.tmpl> + +/* ------------------------------------------------------------------------------- */ +/* Function: in8 */ +/* Description: Input 8 bits */ +/* ------------------------------------------------------------------------------- */ + .globl in8 +in8: + lbz r3,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: in16 */ +/* Description: Input 16 bits */ +/* ------------------------------------------------------------------------------- */ + .globl in16 +in16: + lhz r3,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: in16r */ +/* Description: Input 16 bits and byte reverse */ +/* ------------------------------------------------------------------------------- */ + .globl in16r +in16r: + lhbrx r3,0,r3 + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: in32 */ +/* Description: Input 32 bits */ +/* ------------------------------------------------------------------------------- */ + .globl in32 +in32: + lwz 3,0(3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: in32r */ +/* Description: Input 32 bits and byte reverse */ +/* ------------------------------------------------------------------------------- */ + .globl in32r +in32r: + lwbrx r3,0,r3 + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out8 */ +/* Description: Output 8 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out8 +out8: + stb r4,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out16 */ +/* Description: Output 16 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out16 +out16: + sth r4,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out16r */ +/* Description: Byte reverse and output 16 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out16r +out16r: + sthbrx r4,0,r3 + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out32 */ +/* Description: Output 32 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out32 +out32: + stw r4,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out32r */ +/* Description: Byte reverse and output 32 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out32r +out32r: + stwbrx r4,0,r3 + sync + blr diff --git a/arch/ppc/cpu/mpc5xxx/loadtask.c b/arch/ppc/cpu/mpc5xxx/loadtask.c new file mode 100644 index 0000000..47e7b59 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/loadtask.c @@ -0,0 +1,76 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * This file is based on code + * (C) Copyright Motorola, Inc., 2000 + */ + +#include <common.h> +#include <mpc5xxx.h> + +/* BestComm/SmartComm microcode */ +extern int taskTable; + +void loadtask(int basetask, int tasks) +{ + int *sram = (int *)MPC5XXX_SRAM; + int *task_org = &taskTable; + unsigned int start, offset, end; + int i; + +#ifdef DEBUG + printf("basetask = %d, tasks = %d\n", basetask, tasks); + printf("task_org = 0x%08x\n", (unsigned int)task_org); +#endif + + /* setup TaskBAR register */ + *(vu_long *)MPC5XXX_SDMA = MPC5XXX_SRAM; + + /* relocate task table entries */ + offset = (unsigned int)sram; + for (i = basetask; i < basetask + tasks; i++) { + sram[i * 8 + 0] = task_org[i * 8 + 0] + offset; + sram[i * 8 + 1] = task_org[i * 8 + 1] + offset; + sram[i * 8 + 2] = task_org[i * 8 + 2] + offset; + sram[i * 8 + 3] = task_org[i * 8 + 3] + offset; + sram[i * 8 + 4] = task_org[i * 8 + 4]; + sram[i * 8 + 5] = task_org[i * 8 + 5]; + sram[i * 8 + 6] = task_org[i * 8 + 6] + offset; + sram[i * 8 + 7] = task_org[i * 8 + 7]; + } + + /* relocate task descriptors */ + start = (sram[basetask * 8] - (unsigned int)sram); + end = (sram[(basetask + tasks - 1) * 8 + 1] - (unsigned int)sram); + +#ifdef DEBUG + printf ("TDT start = 0x%08x, end = 0x%08x\n", start, end); +#endif + + start /= 4; + end /= 4; + for (i = start; i <= end; i++) { + sram[i] = task_org[i]; + } + + /* relocate variables */ + start = (sram[basetask * 8 + 2] - (unsigned int)sram); + end = (sram[(basetask + tasks - 1) * 8 + 2] + 256 - (unsigned int)sram); + start /= 4; + end /= 4; + for (i = start; i < end; i++) { + sram[i] = task_org[i]; + } + + /* relocate function decriptors */ + start = ((sram[basetask * 8 + 3] & 0xfffffffc) - (unsigned int)sram); + end = ((sram[(basetask + tasks - 1) * 8 + 3] & 0xfffffffc) + 256 - (unsigned int)sram); + start /= 4; + end /= 4; + for (i = start; i < end; i++) { + sram[i] = task_org[i]; + } + + asm volatile ("sync"); +} diff --git a/arch/ppc/cpu/mpc5xxx/pci_mpc5200.c b/arch/ppc/cpu/mpc5xxx/pci_mpc5200.c new file mode 100644 index 0000000..8268f8a --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/pci_mpc5200.c @@ -0,0 +1,187 @@ +/* + * (C) Copyright 2000-2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +#if defined(CONFIG_PCI) + +#include <asm/processor.h> +#include <asm/io.h> +#include <pci.h> +#include <mpc5xxx.h> + +/* System RAM mapped over PCI */ +#define CONFIG_PCI_MEMORY_BUS CONFIG_SYS_SDRAM_BASE +#define CONFIG_PCI_MEMORY_PHYS CONFIG_SYS_SDRAM_BASE +#define CONFIG_PCI_MEMORY_SIZE (1024 * 1024 * 1024) + +/* PCIIWCR bit fields */ +#define IWCR_MEM (0 << 3) +#define IWCR_IO (1 << 3) +#define IWCR_READ (0 << 1) +#define IWCR_READLINE (1 << 1) +#define IWCR_READMULT (2 << 1) +#define IWCR_EN (1 << 0) + +static int mpc5200_read_config_dword(struct pci_controller *hose, + pci_dev_t dev, int offset, u32* value) +{ + *(volatile u32 *)MPC5XXX_PCI_CAR = (1 << 31) | dev | offset; + eieio(); + udelay(10); +#if (defined CONFIG_PF5200 || defined CONFIG_CPCI5200) + if (dev & 0x00ff0000) { + u32 val; + val = in_le16((volatile u16 *)(CONFIG_PCI_IO_PHYS+2)); + udelay(10); + val = val << 16; + val |= in_le16((volatile u16 *)(CONFIG_PCI_IO_PHYS+0)); + *value = val; + } else { + *value = in_le32((volatile u32 *)CONFIG_PCI_IO_PHYS); + } + udelay(10); +#else + *value = in_le32((volatile u32 *)CONFIG_PCI_IO_PHYS); +#endif + eieio(); + *(volatile u32 *)MPC5XXX_PCI_CAR = 0; + udelay(10); + return 0; +} + +static int mpc5200_write_config_dword(struct pci_controller *hose, + pci_dev_t dev, int offset, u32 value) +{ + *(volatile u32 *)MPC5XXX_PCI_CAR = (1 << 31) | dev | offset; + eieio(); + udelay(10); + out_le32((volatile u32 *)CONFIG_PCI_IO_PHYS, value); + eieio(); + *(volatile u32 *)MPC5XXX_PCI_CAR = 0; + udelay(10); + return 0; +} + +void pci_mpc5xxx_init (struct pci_controller *hose) +{ + hose->first_busno = 0; + hose->last_busno = 0xff; + + /* System space */ + pci_set_region(hose->regions + 0, + CONFIG_PCI_MEMORY_BUS, + CONFIG_PCI_MEMORY_PHYS, + CONFIG_PCI_MEMORY_SIZE, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + /* PCI memory space */ + pci_set_region(hose->regions + 1, + CONFIG_PCI_MEM_BUS, + CONFIG_PCI_MEM_PHYS, + CONFIG_PCI_MEM_SIZE, + PCI_REGION_MEM); + + /* PCI IO space */ + pci_set_region(hose->regions + 2, + CONFIG_PCI_IO_BUS, + CONFIG_PCI_IO_PHYS, + CONFIG_PCI_IO_SIZE, + PCI_REGION_IO); + + hose->region_count = 3; + + pci_register_hose(hose); + + /* GPIO Multiplexing - enable PCI */ + *(vu_long *)MPC5XXX_GPS_PORT_CONFIG &= ~(1 << 15); + + /* Set host bridge as pci master and enable memory decoding */ + *(vu_long *)MPC5XXX_PCI_CMD |= + PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + + /* Set maximum latency timer */ + *(vu_long *)MPC5XXX_PCI_CFG |= (0xf800); + + /* Set cache line size */ + *(vu_long *)MPC5XXX_PCI_CFG = (*(vu_long *)MPC5XXX_PCI_CFG & ~0xff) | + (CONFIG_SYS_CACHELINE_SIZE / 4); + + /* Map MBAR to PCI space */ + *(vu_long *)MPC5XXX_PCI_BAR0 = CONFIG_SYS_MBAR; + *(vu_long *)MPC5XXX_PCI_TBATR0 = CONFIG_SYS_MBAR | 1; + + /* Map RAM to PCI space */ + *(vu_long *)MPC5XXX_PCI_BAR1 = CONFIG_PCI_MEMORY_BUS | (1 << 3); + *(vu_long *)MPC5XXX_PCI_TBATR1 = CONFIG_PCI_MEMORY_PHYS | 1; + + /* Park XLB on PCI */ + *(vu_long *)(MPC5XXX_XLBARB + 0x40) &= ~((7 << 8) | (3 << 5)); + *(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (3 << 8) | (3 << 5); + + /* Disable interrupts from PCI controller */ + *(vu_long *)MPC5XXX_PCI_GSCR &= ~(7 << 12); + *(vu_long *)MPC5XXX_PCI_ICR &= ~(7 << 24); + + /* Set PCI retry counter to 0 = infinite retry. */ + /* The default of 255 is too short for slow devices. */ + *(vu_long *)MPC5XXX_PCI_ICR &= 0xFFFFFF00; + + /* Disable initiator windows */ + *(vu_long *)MPC5XXX_PCI_IWCR = 0; + + /* Map PCI memory to physical space */ + *(vu_long *)MPC5XXX_PCI_IW0BTAR = CONFIG_PCI_MEM_PHYS | + (((CONFIG_PCI_MEM_SIZE - 1) >> 8) & 0x00ff0000) | + (CONFIG_PCI_MEM_BUS >> 16); + *(vu_long *)MPC5XXX_PCI_IWCR |= (IWCR_MEM | IWCR_READ | IWCR_EN) << 24; + + /* Map PCI I/O to physical space */ + *(vu_long *)MPC5XXX_PCI_IW1BTAR = CONFIG_PCI_IO_PHYS | + (((CONFIG_PCI_IO_SIZE - 1) >> 8) & 0x00ff0000) | + (CONFIG_PCI_IO_BUS >> 16); + *(vu_long *)MPC5XXX_PCI_IWCR |= (IWCR_IO | IWCR_READ | IWCR_EN) << 16; + + /* Reset the PCI bus */ + *(vu_long *)MPC5XXX_PCI_GSCR |= 1; + udelay(1000); + *(vu_long *)MPC5XXX_PCI_GSCR &= ~1; + udelay(1000); + + pci_set_ops(hose, + pci_hose_read_config_byte_via_dword, + pci_hose_read_config_word_via_dword, + mpc5200_read_config_dword, + pci_hose_write_config_byte_via_dword, + pci_hose_write_config_word_via_dword, + mpc5200_write_config_dword); + + udelay(1000); + +#ifdef CONFIG_PCI_SCAN_SHOW + printf("PCI: Bus Dev VenId DevId Class Int\n"); +#endif + + hose->last_busno = pci_hose_scan(hose); +} +#endif /* CONFIG_PCI */ diff --git a/arch/ppc/cpu/mpc5xxx/serial.c b/arch/ppc/cpu/mpc5xxx/serial.c new file mode 100644 index 0000000..6675988 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/serial.c @@ -0,0 +1,363 @@ +/* + * (C) Copyright 2000 - 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Hacked for MPC8260 by Murray.Jensen@cmst.csiro.au, 19-Oct-00, with + * changes based on the file arch/ppc/mbxboot/m8260_tty.c from the + * Linux/PPC sources (m8260_tty.c had no copyright info in it). + * + * Martin Krause, 8 Jun 2006 + * Added CONFIG_SERIAL_MULTI support + */ + +/* + * Minimal serial functions needed to use one of the PSC ports + * as serial console interface. + */ + +#include <common.h> +#include <mpc5xxx.h> + +#if defined (CONFIG_SERIAL_MULTI) +#include <serial.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_PSC_CONSOLE) + +#if CONFIG_PSC_CONSOLE == 1 +#define PSC_BASE MPC5XXX_PSC1 +#elif CONFIG_PSC_CONSOLE == 2 +#define PSC_BASE MPC5XXX_PSC2 +#elif CONFIG_PSC_CONSOLE == 3 +#define PSC_BASE MPC5XXX_PSC3 +#elif CONFIG_PSC_CONSOLE == 4 +#define PSC_BASE MPC5XXX_PSC4 +#elif CONFIG_PSC_CONSOLE == 5 +#define PSC_BASE MPC5XXX_PSC5 +#elif CONFIG_PSC_CONSOLE == 6 +#define PSC_BASE MPC5XXX_PSC6 +#else +#error CONFIG_PSC_CONSOLE must be in 1 ... 6 +#endif + +#if defined(CONFIG_SERIAL_MULTI) && !defined(CONFIG_PSC_CONSOLE2) +#error you must define CONFIG_PSC_CONSOLE2 if CONFIG_SERIAL_MULTI is set +#endif + +#if defined(CONFIG_SERIAL_MULTI) +#if CONFIG_PSC_CONSOLE2 == 1 +#define PSC_BASE2 MPC5XXX_PSC1 +#elif CONFIG_PSC_CONSOLE2 == 2 +#define PSC_BASE2 MPC5XXX_PSC2 +#elif CONFIG_PSC_CONSOLE2 == 3 +#define PSC_BASE2 MPC5XXX_PSC3 +#elif CONFIG_PSC_CONSOLE2 == 4 +#define PSC_BASE2 MPC5XXX_PSC4 +#elif CONFIG_PSC_CONSOLE2 == 5 +#define PSC_BASE2 MPC5XXX_PSC5 +#elif CONFIG_PSC_CONSOLE2 == 6 +#define PSC_BASE2 MPC5XXX_PSC6 +#else +#error CONFIG_PSC_CONSOLE2 must be in 1 ... 6 +#endif +#endif /* CONFIG_SERIAL_MULTI */ + +#if defined(CONFIG_SERIAL_MULTI) +int serial_init_dev (unsigned long dev_base) +#else +int serial_init (void) +#endif +{ +#if defined(CONFIG_SERIAL_MULTI) + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; +#else + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; +#endif + unsigned long baseclk; + int div; + + /* reset PSC */ + psc->command = PSC_SEL_MODE_REG_1; + + /* select clock sources */ + psc->psc_clock_select = 0; + baseclk = (gd->ipb_clk + 16) / 32; + + /* switch to UART mode */ + psc->sicr = 0; + + /* configure parity, bit length and so on */ + psc->mode = PSC_MODE_8_BITS | PSC_MODE_PARNONE; + psc->mode = PSC_MODE_ONE_STOP; + + /* set up UART divisor */ + div = (baseclk + (gd->baudrate/2)) / gd->baudrate; + psc->ctur = (div >> 8) & 0xff; + psc->ctlr = div & 0xff; + + /* disable all interrupts */ + psc->psc_imr = 0; + + /* reset and enable Rx/Tx */ + psc->command = PSC_RST_RX; + psc->command = PSC_RST_TX; + psc->command = PSC_RX_ENABLE | PSC_TX_ENABLE; + + return (0); +} + +#if defined(CONFIG_SERIAL_MULTI) +void serial_putc_dev (unsigned long dev_base, const char c) +#else +void serial_putc(const char c) +#endif +{ +#if defined(CONFIG_SERIAL_MULTI) + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; +#else + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; +#endif + + if (c == '\n') +#if defined(CONFIG_SERIAL_MULTI) + serial_putc_dev (dev_base, '\r'); +#else + serial_putc('\r'); +#endif + + /* Wait for last character to go. */ + while (!(psc->psc_status & PSC_SR_TXEMP)) + ; + + psc->psc_buffer_8 = c; +} + +#if defined(CONFIG_SERIAL_MULTI) +void serial_putc_raw_dev(unsigned long dev_base, const char c) +#else +void serial_putc_raw(const char c) +#endif +{ +#if defined(CONFIG_SERIAL_MULTI) + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; +#else + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; +#endif + /* Wait for last character to go. */ + while (!(psc->psc_status & PSC_SR_TXEMP)) + ; + + psc->psc_buffer_8 = c; +} + + +#if defined(CONFIG_SERIAL_MULTI) +void serial_puts_dev (unsigned long dev_base, const char *s) +#else +void serial_puts (const char *s) +#endif +{ + while (*s) { +#if defined(CONFIG_SERIAL_MULTI) + serial_putc_dev (dev_base, *s++); +#else + serial_putc (*s++); +#endif + } +} + +#if defined(CONFIG_SERIAL_MULTI) +int serial_getc_dev (unsigned long dev_base) +#else +int serial_getc(void) +#endif +{ +#if defined(CONFIG_SERIAL_MULTI) + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; +#else + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; +#endif + + /* Wait for a character to arrive. */ + while (!(psc->psc_status & PSC_SR_RXRDY)) + ; + + return psc->psc_buffer_8; +} + +#if defined(CONFIG_SERIAL_MULTI) +int serial_tstc_dev (unsigned long dev_base) +#else +int serial_tstc(void) +#endif +{ +#if defined(CONFIG_SERIAL_MULTI) + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; +#else + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; +#endif + + return (psc->psc_status & PSC_SR_RXRDY); +} + +#if defined(CONFIG_SERIAL_MULTI) +void serial_setbrg_dev (unsigned long dev_base) +#else +void serial_setbrg(void) +#endif +{ +#if defined(CONFIG_SERIAL_MULTI) + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; +#else + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; +#endif + unsigned long baseclk, div; + + baseclk = (gd->ipb_clk + 16) / 32; + + /* set up UART divisor */ + div = (baseclk + (gd->baudrate/2)) / gd->baudrate; + psc->ctur = (div >> 8) & 0xFF; + psc->ctlr = div & 0xff; +} + +#if defined(CONFIG_SERIAL_MULTI) +void serial_setrts_dev (unsigned long dev_base, int s) +#else +void serial_setrts(int s) +#endif +{ +#if defined(CONFIG_SERIAL_MULTI) + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; +#else + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; +#endif + + if (s) { + /* Assert RTS (become LOW) */ + psc->op1 = 0x1; + } + else { + /* Negate RTS (become HIGH) */ + psc->op0 = 0x1; + } +} + +#if defined(CONFIG_SERIAL_MULTI) +int serial_getcts_dev (unsigned long dev_base) +#else +int serial_getcts(void) +#endif +{ +#if defined(CONFIG_SERIAL_MULTI) + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; +#else + volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; +#endif + + return (psc->ip & 0x1) ? 0 : 1; +} + +#if defined(CONFIG_SERIAL_MULTI) +int serial0_init(void) +{ + return (serial_init_dev(PSC_BASE)); +} + +int serial1_init(void) +{ + return (serial_init_dev(PSC_BASE2)); +} +void serial0_setbrg (void) +{ + serial_setbrg_dev(PSC_BASE); +} +void serial1_setbrg (void) +{ + serial_setbrg_dev(PSC_BASE2); +} + +void serial0_putc(const char c) +{ + serial_putc_dev(PSC_BASE,c); +} + +void serial1_putc(const char c) +{ + serial_putc_dev(PSC_BASE2, c); +} +void serial0_puts(const char *s) +{ + serial_puts_dev(PSC_BASE, s); +} + +void serial1_puts(const char *s) +{ + serial_puts_dev(PSC_BASE2, s); +} + +int serial0_getc(void) +{ + return(serial_getc_dev(PSC_BASE)); +} + +int serial1_getc(void) +{ + return(serial_getc_dev(PSC_BASE2)); +} +int serial0_tstc(void) +{ + return (serial_tstc_dev(PSC_BASE)); +} + +int serial1_tstc(void) +{ + return (serial_tstc_dev(PSC_BASE2)); +} + +struct serial_device serial0_device = +{ + "serial0", + "UART0", + serial0_init, + serial0_setbrg, + serial0_getc, + serial0_tstc, + serial0_putc, + serial0_puts, +}; + +struct serial_device serial1_device = +{ + "serial1", + "UART1", + serial1_init, + serial1_setbrg, + serial1_getc, + serial1_tstc, + serial1_putc, + serial1_puts, +}; +#endif /* CONFIG_SERIAL_MULTI */ + +#endif /* CONFIG_PSC_CONSOLE */ diff --git a/arch/ppc/cpu/mpc5xxx/speed.c b/arch/ppc/cpu/mpc5xxx/speed.c new file mode 100644 index 0000000..8027d3e --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/speed.c @@ -0,0 +1,94 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc5xxx.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* ------------------------------------------------------------------------- */ + +/* Bus-to-Core Multipliers */ + +static int bus2core[] = { + 3, 2, 2, 2, 4, 4, 5, 9, + 6, 11, 8, 10, 3, 12, 7, 0, + 6, 5, 13, 2, 14, 4, 15, 9, + 0, 11, 8, 10, 16, 12, 7, 0 +}; +/* ------------------------------------------------------------------------- */ + +/* + * + */ + +int get_clocks (void) +{ + ulong val, vco; + +#if !defined(CONFIG_SYS_MPC5XXX_CLKIN) +#error clock measuring not implemented yet - define CONFIG_SYS_MPC5XXX_CLKIN +#endif + + val = *(vu_long *)MPC5XXX_CDM_PORCFG; + if (val & (1 << 6)) { + vco = CONFIG_SYS_MPC5XXX_CLKIN * 12; + } else { + vco = CONFIG_SYS_MPC5XXX_CLKIN * 16; + } + if (val & (1 << 5)) { + gd->bus_clk = vco / 8; + } else { + gd->bus_clk = vco / 4; + } + gd->cpu_clk = gd->bus_clk * bus2core[val & 0x1f] / 2; + + val = *(vu_long *)MPC5XXX_CDM_CFG; + if (val & (1 << 8)) { + gd->ipb_clk = gd->bus_clk / 2; + } else { + gd->ipb_clk = gd->bus_clk; + } + switch (val & 3) { + case 0: gd->pci_clk = gd->ipb_clk; break; + case 1: gd->pci_clk = gd->ipb_clk / 2; break; + default: gd->pci_clk = gd->bus_clk / 4; break; + } + + return (0); +} + +int prt_mpc5xxx_clks (void) +{ + char buf1[32], buf2[32], buf3[32]; + + printf (" Bus %s MHz, IPB %s MHz, PCI %s MHz\n", + strmhz(buf1, gd->bus_clk), + strmhz(buf2, gd->ipb_clk), + strmhz(buf3, gd->pci_clk) + ); + return (0); +} + +/* ------------------------------------------------------------------------- */ diff --git a/arch/ppc/cpu/mpc5xxx/start.S b/arch/ppc/cpu/mpc5xxx/start.S new file mode 100644 index 0000000..ba49944 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/start.S @@ -0,0 +1,777 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2000 - 2003 Wolfgang Denk <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * U-Boot - Startup Code for MPC5xxx CPUs + */ +#include <config.h> +#include <mpc5xxx.h> +#include <timestamp.h> +#include <version.h> + +#define CONFIG_MPC5xxx 1 /* needed for Linux kernel header files */ +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +/* We don't want the MMU yet. +*/ +#undef MSR_KERNEL +/* Floating Point enable, Machine Check and Recoverable Interr. */ +#ifdef DEBUG +#define MSR_KERNEL (MSR_FP|MSR_RI) +#else +#define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI) +#endif + +/* + * Set up GOT: Global Offset Table + * + * Use r12 to access the GOT + */ + START_GOT + GOT_ENTRY(_GOT2_TABLE_) + GOT_ENTRY(_FIXUP_TABLE_) + + GOT_ENTRY(_start) + GOT_ENTRY(_start_of_vectors) + GOT_ENTRY(_end_of_vectors) + GOT_ENTRY(transfer_to_handler) + + GOT_ENTRY(__init_end) + GOT_ENTRY(_end) + GOT_ENTRY(__bss_start) + END_GOT + +/* + * Version string + */ + .data + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" + .ascii CONFIG_IDENT_STRING, "\0" + +/* + * Exception vectors + */ + .text + . = EXC_OFF_SYS_RESET + .globl _start +_start: + li r21, BOOTFLAG_COLD /* Normal Power-On */ + nop + b boot_cold + + . = EXC_OFF_SYS_RESET + 0x10 + + .globl _start_warm +_start_warm: + li r21, BOOTFLAG_WARM /* Software reboot */ + b boot_warm + +boot_cold: +boot_warm: + mfmsr r5 /* save msr contents */ + + /* Move CSBoot and adjust instruction pointer */ + /*--------------------------------------------------------------*/ + +#if defined(CONFIG_SYS_LOWBOOT) +# if defined(CONFIG_SYS_RAMBOOT) +# error CONFIG_SYS_LOWBOOT is incompatible with CONFIG_SYS_RAMBOOT +# endif /* CONFIG_SYS_RAMBOOT */ + lis r4, CONFIG_SYS_DEFAULT_MBAR@h + lis r3, START_REG(CONFIG_SYS_BOOTCS_START)@h + ori r3, r3, START_REG(CONFIG_SYS_BOOTCS_START)@l + stw r3, 0x4(r4) /* CS0 start */ + lis r3, STOP_REG(CONFIG_SYS_BOOTCS_START, CONFIG_SYS_BOOTCS_SIZE)@h + ori r3, r3, STOP_REG(CONFIG_SYS_BOOTCS_START, CONFIG_SYS_BOOTCS_SIZE)@l + stw r3, 0x8(r4) /* CS0 stop */ + lis r3, 0x02010000@h + ori r3, r3, 0x02010000@l + stw r3, 0x54(r4) /* CS0 and Boot enable */ + + lis r3, lowboot_reentry@h /* jump from bootlow address space (0x0000xxxx) */ + ori r3, r3, lowboot_reentry@l /* to the address space the linker used */ + mtlr r3 + blr + +lowboot_reentry: + lis r3, START_REG(CONFIG_SYS_BOOTCS_START)@h + ori r3, r3, START_REG(CONFIG_SYS_BOOTCS_START)@l + stw r3, 0x4c(r4) /* Boot start */ + lis r3, STOP_REG(CONFIG_SYS_BOOTCS_START, CONFIG_SYS_BOOTCS_SIZE)@h + ori r3, r3, STOP_REG(CONFIG_SYS_BOOTCS_START, CONFIG_SYS_BOOTCS_SIZE)@l + stw r3, 0x50(r4) /* Boot stop */ + lis r3, 0x02000001@h + ori r3, r3, 0x02000001@l + stw r3, 0x54(r4) /* Boot enable, CS0 disable */ +#endif /* CONFIG_SYS_LOWBOOT */ + +#if defined(CONFIG_SYS_DEFAULT_MBAR) && !defined(CONFIG_SYS_RAMBOOT) + lis r3, CONFIG_SYS_MBAR@h + ori r3, r3, CONFIG_SYS_MBAR@l + /* MBAR is mirrored into the MBAR SPR */ + mtspr MBAR,r3 + rlwinm r3, r3, 16, 16, 31 + lis r4, CONFIG_SYS_DEFAULT_MBAR@h + stw r3, 0(r4) +#endif /* CONFIG_SYS_DEFAULT_MBAR */ + + /* Initialise the MPC5xxx processor core */ + /*--------------------------------------------------------------*/ + + bl init_5xxx_core + + /* initialize some things that are hard to access from C */ + /*--------------------------------------------------------------*/ + + /* set up stack in on-chip SRAM */ + lis r3, CONFIG_SYS_INIT_RAM_ADDR@h + ori r3, r3, CONFIG_SYS_INIT_RAM_ADDR@l + ori r1, r3, CONFIG_SYS_INIT_SP_OFFSET + li r0, 0 /* Make room for stack frame header and */ + stwu r0, -4(r1) /* clear final stack frame so that */ + stwu r0, -4(r1) /* stack backtraces terminate cleanly */ + + /* let the C-code set up the rest */ + /* */ + /* Be careful to keep code relocatable ! */ + /*--------------------------------------------------------------*/ + + GET_GOT /* initialize GOT access */ + + /* r3: IMMR */ + bl cpu_init_f /* run low-level CPU init code (in Flash)*/ + + mr r3, r21 + /* r3: BOOTFLAG */ + bl board_init_f /* run 1st part of board init code (in Flash)*/ + +/* + * Vector Table + */ + + .globl _start_of_vectors +_start_of_vectors: + +/* Machine check */ + STD_EXCEPTION(0x200, MachineCheck, MachineCheckException) + +/* Data Storage exception. */ + STD_EXCEPTION(0x300, DataStorage, UnknownException) + +/* Instruction Storage exception. */ + STD_EXCEPTION(0x400, InstStorage, UnknownException) + +/* External Interrupt exception. */ + STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) + +/* Alignment exception. */ + . = 0x600 +Alignment: + EXCEPTION_PROLOG(SRR0, SRR1) + mfspr r4,DAR + stw r4,_DAR(r21) + mfspr r5,DSISR + stw r5,_DSISR(r21) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) + +/* Program check exception */ + . = 0x700 +ProgramCheck: + EXCEPTION_PROLOG(SRR0, SRR1) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, + MSR_KERNEL, COPY_EE) + + STD_EXCEPTION(0x800, FPUnavailable, UnknownException) + + /* I guess we could implement decrementer, and may have + * to someday for timekeeping. + */ + STD_EXCEPTION(0x900, Decrementer, timer_interrupt) + + STD_EXCEPTION(0xa00, Trap_0a, UnknownException) + STD_EXCEPTION(0xb00, Trap_0b, UnknownException) + STD_EXCEPTION(0xc00, SystemCall, UnknownException) + STD_EXCEPTION(0xd00, SingleStep, UnknownException) + + STD_EXCEPTION(0xe00, Trap_0e, UnknownException) + STD_EXCEPTION(0xf00, Trap_0f, UnknownException) + + STD_EXCEPTION(0x1000, InstructionTLBMiss, UnknownException) + STD_EXCEPTION(0x1100, DataLoadTLBMiss, UnknownException) + STD_EXCEPTION(0x1200, DataStoreTLBMiss, UnknownException) +#ifdef DEBUG + . = 0x1300 + /* + * This exception occurs when the program counter matches the + * Instruction Address Breakpoint Register (IABR). + * + * I want the cpu to halt if this occurs so I can hunt around + * with the debugger and look at things. + * + * When DEBUG is defined, both machine check enable (in the MSR) + * and checkstop reset enable (in the reset mode register) are + * turned off and so a checkstop condition will result in the cpu + * halting. + * + * I force the cpu into a checkstop condition by putting an illegal + * instruction here (at least this is the theory). + * + * well - that didnt work, so just do an infinite loop! + */ +1: b 1b +#else + STD_EXCEPTION(0x1300, InstructionBreakpoint, DebugException) +#endif + STD_EXCEPTION(0x1400, SMI, UnknownException) + + STD_EXCEPTION(0x1500, Trap_15, UnknownException) + STD_EXCEPTION(0x1600, Trap_16, UnknownException) + STD_EXCEPTION(0x1700, Trap_17, UnknownException) + STD_EXCEPTION(0x1800, Trap_18, UnknownException) + STD_EXCEPTION(0x1900, Trap_19, UnknownException) + STD_EXCEPTION(0x1a00, Trap_1a, UnknownException) + STD_EXCEPTION(0x1b00, Trap_1b, UnknownException) + STD_EXCEPTION(0x1c00, Trap_1c, UnknownException) + STD_EXCEPTION(0x1d00, Trap_1d, UnknownException) + STD_EXCEPTION(0x1e00, Trap_1e, UnknownException) + STD_EXCEPTION(0x1f00, Trap_1f, UnknownException) + STD_EXCEPTION(0x2000, Trap_20, UnknownException) + STD_EXCEPTION(0x2100, Trap_21, UnknownException) + STD_EXCEPTION(0x2200, Trap_22, UnknownException) + STD_EXCEPTION(0x2300, Trap_23, UnknownException) + STD_EXCEPTION(0x2400, Trap_24, UnknownException) + STD_EXCEPTION(0x2500, Trap_25, UnknownException) + STD_EXCEPTION(0x2600, Trap_26, UnknownException) + STD_EXCEPTION(0x2700, Trap_27, UnknownException) + STD_EXCEPTION(0x2800, Trap_28, UnknownException) + STD_EXCEPTION(0x2900, Trap_29, UnknownException) + STD_EXCEPTION(0x2a00, Trap_2a, UnknownException) + STD_EXCEPTION(0x2b00, Trap_2b, UnknownException) + STD_EXCEPTION(0x2c00, Trap_2c, UnknownException) + STD_EXCEPTION(0x2d00, Trap_2d, UnknownException) + STD_EXCEPTION(0x2e00, Trap_2e, UnknownException) + STD_EXCEPTION(0x2f00, Trap_2f, UnknownException) + + + .globl _end_of_vectors +_end_of_vectors: + + . = 0x3000 + +/* + * This code finishes saving the registers to the exception frame + * and jumps to the appropriate handler for the exception. + * Register r21 is pointer into trap frame, r1 has new stack pointer. + */ + .globl transfer_to_handler +transfer_to_handler: + stw r22,_NIP(r21) + lis r22,MSR_POW@h + andc r23,r23,r22 + stw r23,_MSR(r21) + SAVE_GPR(7, r21) + SAVE_4GPRS(8, r21) + SAVE_8GPRS(12, r21) + SAVE_8GPRS(24, r21) + mflr r23 + andi. r24,r23,0x3f00 /* get vector offset */ + stw r24,TRAP(r21) + li r22,0 + stw r22,RESULT(r21) + lwz r24,0(r23) /* virtual address of handler */ + lwz r23,4(r23) /* where to go when done */ + mtspr SRR0,r24 + mtspr SRR1,r20 + mtlr r23 + SYNC + rfi /* jump to handler, enable MMU */ + +int_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SRR0,r2 + mtspr SRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfi + +/* + * This code initialises the MPC5xxx processor core + * (conforms to PowerPC 603e spec) + * Note: expects original MSR contents to be in r5. + */ + + .globl init_5xx_core +init_5xxx_core: + + /* Initialize machine status; enable machine check interrupt */ + /*--------------------------------------------------------------*/ + + li r3, MSR_KERNEL /* Set ME and RI flags */ + rlwimi r3, r5, 0, 25, 25 /* preserve IP bit set by HRCW */ +#ifdef DEBUG + rlwimi r3, r5, 0, 21, 22 /* debugger might set SE & BE bits */ +#endif + SYNC /* Some chip revs need this... */ + mtmsr r3 + SYNC + mtspr SRR1, r3 /* Make SRR1 match MSR */ + + /* Initialize the Hardware Implementation-dependent Registers */ + /* HID0 also contains cache control */ + /*--------------------------------------------------------------*/ + + lis r3, CONFIG_SYS_HID0_INIT@h + ori r3, r3, CONFIG_SYS_HID0_INIT@l + SYNC + mtspr HID0, r3 + + lis r3, CONFIG_SYS_HID0_FINAL@h + ori r3, r3, CONFIG_SYS_HID0_FINAL@l + SYNC + mtspr HID0, r3 + + /* clear all BAT's */ + /*--------------------------------------------------------------*/ + + li r0, 0 + mtspr DBAT0U, r0 + mtspr DBAT0L, r0 + mtspr DBAT1U, r0 + mtspr DBAT1L, r0 + mtspr DBAT2U, r0 + mtspr DBAT2L, r0 + mtspr DBAT3U, r0 + mtspr DBAT3L, r0 + mtspr DBAT4U, r0 + mtspr DBAT4L, r0 + mtspr DBAT5U, r0 + mtspr DBAT5L, r0 + mtspr DBAT6U, r0 + mtspr DBAT6L, r0 + mtspr DBAT7U, r0 + mtspr DBAT7L, r0 + mtspr IBAT0U, r0 + mtspr IBAT0L, r0 + mtspr IBAT1U, r0 + mtspr IBAT1L, r0 + mtspr IBAT2U, r0 + mtspr IBAT2L, r0 + mtspr IBAT3U, r0 + mtspr IBAT3L, r0 + mtspr IBAT4U, r0 + mtspr IBAT4L, r0 + mtspr IBAT5U, r0 + mtspr IBAT5L, r0 + mtspr IBAT6U, r0 + mtspr IBAT6L, r0 + mtspr IBAT7U, r0 + mtspr IBAT7L, r0 + SYNC + + /* invalidate all tlb's */ + /* */ + /* From the 603e User Manual: "The 603e provides the ability to */ + /* invalidate a TLB entry. The TLB Invalidate Entry (tlbie) */ + /* instruction invalidates the TLB entry indexed by the EA, and */ + /* operates on both the instruction and data TLBs simultaneously*/ + /* invalidating four TLB entries (both sets in each TLB). The */ + /* index corresponds to bits 15-19 of the EA. To invalidate all */ + /* entries within both TLBs, 32 tlbie instructions should be */ + /* issued, incrementing this field by one each time." */ + /* */ + /* "Note that the tlbia instruction is not implemented on the */ + /* 603e." */ + /* */ + /* bits 15-19 correspond to addresses 0x00000000 to 0x0001F000 */ + /* incrementing by 0x1000 each time. The code below is sort of */ + /* based on code in "flush_tlbs" from arch/ppc/kernel/head.S */ + /* */ + /*--------------------------------------------------------------*/ + + li r3, 32 + mtctr r3 + li r3, 0 +1: tlbie r3 + addi r3, r3, 0x1000 + bdnz 1b + SYNC + + /* Done! */ + /*--------------------------------------------------------------*/ + + blr + +/* Cache functions. + * + * Note: requires that all cache bits in + * HID0 are in the low half word. + */ + .globl icache_enable +icache_enable: + mfspr r3, HID0 + ori r3, r3, HID0_ICE + lis r4, 0 + ori r4, r4, HID0_ILOCK + andc r3, r3, r4 + ori r4, r3, HID0_ICFI + isync + mtspr HID0, r4 /* sets enable and invalidate, clears lock */ + isync + mtspr HID0, r3 /* clears invalidate */ + blr + + .globl icache_disable +icache_disable: + mfspr r3, HID0 + lis r4, 0 + ori r4, r4, HID0_ICE|HID0_ILOCK + andc r3, r3, r4 + ori r4, r3, HID0_ICFI + isync + mtspr HID0, r4 /* sets invalidate, clears enable and lock */ + isync + mtspr HID0, r3 /* clears invalidate */ + blr + + .globl icache_status +icache_status: + mfspr r3, HID0 + rlwinm r3, r3, HID0_ICE_BITPOS + 1, 31, 31 + blr + + .globl dcache_enable +dcache_enable: + mfspr r3, HID0 + ori r3, r3, HID0_DCE + lis r4, 0 + ori r4, r4, HID0_DLOCK + andc r3, r3, r4 + ori r4, r3, HID0_DCI + sync + mtspr HID0, r4 /* sets enable and invalidate, clears lock */ + sync + mtspr HID0, r3 /* clears invalidate */ + blr + + .globl dcache_disable +dcache_disable: + mfspr r3, HID0 + lis r4, 0 + ori r4, r4, HID0_DCE|HID0_DLOCK + andc r3, r3, r4 + ori r4, r3, HID0_DCI + sync + mtspr HID0, r4 /* sets invalidate, clears enable and lock */ + sync + mtspr HID0, r3 /* clears invalidate */ + blr + + .globl dcache_status +dcache_status: + mfspr r3, HID0 + rlwinm r3, r3, HID0_DCE_BITPOS + 1, 31, 31 + blr + + .globl get_svr +get_svr: + mfspr r3, SVR + blr + + .globl get_pvr +get_pvr: + mfspr r3, PVR + blr + +/*------------------------------------------------------------------------------*/ + +/* + * void relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * r3 = dest + * r4 = src + * r5 = length in bytes + * r6 = cachelinesize + */ + .globl relocate_code +relocate_code: + mr r1, r3 /* Set new stack pointer */ + mr r9, r4 /* Save copy of Global Data pointer */ + mr r10, r5 /* Save copy of Destination Address */ + + GET_GOT + mr r3, r5 /* Destination Address */ + lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ + ori r4, r4, CONFIG_SYS_MONITOR_BASE@l + lwz r5, GOT(__init_end) + sub r5, r5, r4 + li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */ + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address + * + * Offset: + */ + sub r15, r10, r4 + + /* First our own GOT */ + add r12, r12, r15 + /* then the one used by the C code */ + add r30, r30, r15 + + /* + * Now relocate code + */ + + cmplw cr1,r3,r4 + addi r0,r5,3 + srwi. r0,r0,2 + beq cr1,4f /* In place copy is not necessary */ + beq 7f /* Protect against 0 count */ + mtctr r0 + bge cr1,2f + + la r8,-4(r4) + la r7,-4(r3) +1: lwzu r0,4(r8) + stwu r0,4(r7) + bdnz 1b + b 4f + +2: slwi r0,r0,2 + add r8,r4,r0 + add r7,r3,r0 +3: lwzu r0,-4(r8) + stwu r0,-4(r7) + bdnz 3b + +/* + * Now flush the cache: note that we must start from a cache aligned + * address. Otherwise we might miss one cache line. + */ +4: cmpwi r6,0 + add r5,r3,r5 + beq 7f /* Always flush prefetch queue in any case */ + subi r0,r6,1 + andc r3,r3,r0 + mfspr r7,HID0 /* don't do dcbst if dcache is disabled */ + rlwinm r7,r7,HID0_DCE_BITPOS+1,31,31 + cmpwi r7,0 + beq 9f + mr r4,r3 +5: dcbst 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 5b + sync /* Wait for all dcbst to complete on bus */ +9: mfspr r7,HID0 /* don't do icbi if icache is disabled */ + rlwinm r7,r7,HID0_ICE_BITPOS+1,31,31 + cmpwi r7,0 + beq 7f + mr r4,r3 +6: icbi 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 6b +7: sync /* Wait for all icbi to complete on bus */ + isync + +/* + * We are done. Do not return, instead branch to second part of board + * initialization, now running from RAM. + */ + + addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET + mtlr r0 + blr + +in_ram: + + /* + * Relocation Function, r12 point to got2+0x8000 + * + * Adjust got2 pointers, no need to check for 0, this code + * already puts a few entries in the table. + */ + li r0,__got2_entries@sectoff@l + la r3,GOT(_GOT2_TABLE_) + lwz r11,GOT(_GOT2_TABLE_) + mtctr r0 + sub r11,r3,r11 + addi r3,r3,-4 +1: lwzu r0,4(r3) + cmpwi r0,0 + beq- 2f + add r0,r0,r11 + stw r0,0(r3) +2: bdnz 1b + + /* + * Now adjust the fixups and the pointers to the fixups + * in case we need to move ourselves again. + */ + li r0,__fixup_entries@sectoff@l + lwz r3,GOT(_FIXUP_TABLE_) + cmpwi r0,0 + mtctr r0 + addi r3,r3,-4 + beq 4f +3: lwzu r4,4(r3) + lwzux r0,r4,r11 + add r0,r0,r11 + stw r10,0(r3) + stw r0,0(r4) + bdnz 3b +4: +clear_bss: + /* + * Now clear BSS segment + */ + lwz r3,GOT(__bss_start) + lwz r4,GOT(_end) + + cmplw 0, r3, r4 + beq 6f + + li r0, 0 +5: + stw r0, 0(r3) + addi r3, r3, 4 + cmplw 0, r3, r4 + bne 5b +6: + + mr r3, r9 /* Global Data pointer */ + mr r4, r10 /* Destination Address */ + bl board_init_r + + /* + * Copy exception vector code to low memory + * + * r3: dest_addr + * r7: source address, r8: end address, r9: target address + */ + .globl trap_init +trap_init: + mflr r4 /* save link register */ + GET_GOT + lwz r7, GOT(_start) + lwz r8, GOT(_end_of_vectors) + + li r9, 0x100 /* reset vector always at 0x100 */ + + cmplw 0, r7, r8 + bgelr /* return if r7>=r8 - just in case */ +1: + lwz r0, 0(r7) + stw r0, 0(r9) + addi r7, r7, 4 + addi r9, r9, 4 + cmplw 0, r7, r8 + bne 1b + + /* + * relocate `hdlr' and `int_return' entries + */ + li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET + li r8, Alignment - _start + EXC_OFF_SYS_RESET +2: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 2b + + li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET + li r8, SystemCall - _start + EXC_OFF_SYS_RESET +3: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 3b + + li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET + li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET +4: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 4b + + mfmsr r3 /* now that the vectors have */ + lis r7, MSR_IP@h /* relocated into low memory */ + ori r7, r7, MSR_IP@l /* MSR[IP] can be turned off */ + andc r3, r3, r7 /* (if it was on) */ + SYNC /* Some chip revs need this... */ + mtmsr r3 + SYNC + + mtlr r4 /* restore link register */ + blr diff --git a/arch/ppc/cpu/mpc5xxx/traps.c b/arch/ppc/cpu/mpc5xxx/traps.c new file mode 100644 index 0000000..934a2f2 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/traps.c @@ -0,0 +1,245 @@ +/* + * linux/arch/ppc/kernel/traps.c + * + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * Modified by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras (paulus@cs.anu.edu.au) + * fixed Machine Check Reasons by Reinhard Meyer (r.meyer@emk-elektronik.de) + * + * (C) Copyright 2000-2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * This file handles the architecture-dependent parts of hardware exceptions + */ + +#include <common.h> +#include <command.h> +#include <kgdb.h> +#include <asm/processor.h> + +/* Returns 0 if exception not found and fixup otherwise. */ +extern unsigned long search_exception_table(unsigned long); + +/* THIS NEEDS CHANGING to use the board info structure. +*/ +#define END_OF_MEM 0x02000000 + +/* + * Trap & Exception support + */ + +void +print_backtrace(unsigned long *sp) +{ + int cnt = 0; + unsigned long i; + + printf("Call backtrace: "); + while (sp) { + if ((uint)sp > END_OF_MEM) + break; + + i = sp[1]; + if (cnt++ % 7 == 0) + printf("\n"); + printf("%08lX ", i); + if (cnt > 32) break; + sp = (unsigned long *)*sp; + } + printf("\n"); +} + +void show_regs(struct pt_regs * regs) +{ + int i; + + printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n", + regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); + printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n", + regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0, + regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0, + regs->msr&MSR_IR ? 1 : 0, + regs->msr&MSR_DR ? 1 : 0); + + printf("\n"); + for (i = 0; i < 32; i++) { + if ((i % 8) == 0) + { + printf("GPR%02d: ", i); + } + + printf("%08lX ", regs->gpr[i]); + if ((i % 8) == 7) + { + printf("\n"); + } + } +} + + +void +_exception(int signr, struct pt_regs *regs) +{ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Exception in kernel pc %lx signal %d",regs->nip,signr); +} + +void +MachineCheckException(struct pt_regs *regs) +{ + unsigned long fixup; + + /* Probing PCI using config cycles cause this exception + * when a device is not present. Catch it and return to + * the PCI exception handler. + */ + if ((fixup = search_exception_table(regs->nip)) != 0) { + regs->nip = fixup; + return; + } + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + printf("Machine check in kernel mode.\n"); + printf("Caused by (from msr): "); + printf("regs %p ",regs); + /* refer to 603e Manual (MPC603EUM/AD), chapter 4.5.2.1 */ + switch( regs->msr & 0x000F0000) + { + case (0x80000000>>12) : + printf("Machine check signal - probably due to mm fault\n" + "with mmu off\n"); + break; + case (0x80000000>>13) : + printf("Transfer error ack signal\n"); + break; + case (0x80000000>>14) : + printf("Data parity signal\n"); + break; + case (0x80000000>>15) : + printf("Address parity signal\n"); + break; + default: + printf("Unknown values in msr\n"); + } + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("machine check"); +} + +void +AlignmentException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Alignment Exception"); +} + +void +ProgramCheckException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Program Check Exception"); +} + +void +SoftEmuException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Software Emulation Exception"); +} + + +void +UnknownException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", + regs->nip, regs->msr, regs->trap); + _exception(0, regs); +} + +#if defined(CONFIG_CMD_BEDBUG) +extern void do_bedbug_breakpoint(struct pt_regs *); +#endif + +void +DebugException(struct pt_regs *regs) +{ + + printf("Debugger trap at @ %lx\n", regs->nip ); + show_regs(regs); +#if defined(CONFIG_CMD_BEDBUG) + do_bedbug_breakpoint( regs ); +#endif +} + +/* Probe an address by reading. If not present, return -1, otherwise + * return 0. + */ +int +addr_probe(uint *addr) +{ +#if 0 + int retval; + + __asm__ __volatile__( \ + "1: lwz %0,0(%1)\n" \ + " eieio\n" \ + " li %0,0\n" \ + "2:\n" \ + ".section .fixup,\"ax\"\n" \ + "3: li %0,-1\n" \ + " b 2b\n" \ + ".section __ex_table,\"a\"\n" \ + " .align 2\n" \ + " .long 1b,3b\n" \ + ".text" \ + : "=r" (retval) : "r"(addr)); + + return (retval); +#endif + return 0; +} diff --git a/arch/ppc/cpu/mpc5xxx/u-boot-customlayout.lds b/arch/ppc/cpu/mpc5xxx/u-boot-customlayout.lds new file mode 100644 index 0000000..81ebde9 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/u-boot-customlayout.lds @@ -0,0 +1,133 @@ +/* + * (C) Copyright 2003-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_ARCH(powerpc) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + /* WARNING - the following is hand-optimized to fit within */ + /* the sector layout of our flash chips! XXX FIXME XXX */ + + arch/ppc/cpu/mpc5xxx/start.o (.text) + arch/ppc/cpu/mpc5xxx/traps.o (.text) + lib/crc32.o (.text) + arch/ppc/lib/cache.o (.text) + arch/ppc/lib/time.o (.text) + + . = DEFINED(env_offset) ? env_offset : .; + common/env_embedded.o (.ppcenv) + + *(.text) + *(.got1) + . = ALIGN(16); + *(.eh_frame) + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x0FFF) & 0xFFFFF000; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(4096); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(4096); + __init_end = .; + + __bss_start = .; + .bss (NOLOAD) : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + . = ALIGN(4); + } + _end = . ; + PROVIDE (end = .); +} diff --git a/arch/ppc/cpu/mpc5xxx/u-boot.lds b/arch/ppc/cpu/mpc5xxx/u-boot.lds new file mode 100644 index 0000000..64ef481 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/u-boot.lds @@ -0,0 +1,122 @@ +/* + * (C) Copyright 2003-2007 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_ARCH(powerpc) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + arch/ppc/cpu/mpc5xxx/start.o (.text) + *(.text) + *(.got1) + . = ALIGN(16); + *(.eh_frame) + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x0FFF) & 0xFFFFF000; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(4096); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(4096); + __init_end = .; + + __bss_start = .; + .bss (NOLOAD) : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + . = ALIGN(4); + } + _end = . ; + PROVIDE (end = .); +} diff --git a/arch/ppc/cpu/mpc5xxx/usb.c b/arch/ppc/cpu/mpc5xxx/usb.c new file mode 100644 index 0000000..bec7da3 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/usb.c @@ -0,0 +1,58 @@ +/* + * (C) Copyright 2007 + * Markus Klotzbuecher, DENX Software Engineering <mk@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) + +#include <mpc5xxx.h> + +int usb_cpu_init(void) +{ + /* Set the USB Clock */ + *(vu_long *)MPC5XXX_CDM_48_FDC = CONFIG_USB_CLOCK; + +#ifdef CONFIG_PSC3_USB /* USB is using the alternate configuration */ + /* remove all PSC3 USB bits first before ORing in ours */ + *(vu_long *)MPC5XXX_GPS_PORT_CONFIG &= ~0x00804f00; +#else + /* remove all USB bits first before ORing in ours */ + *(vu_long *)MPC5XXX_GPS_PORT_CONFIG &= ~0x00807000; +#endif + /* Activate USB port */ + *(vu_long *)MPC5XXX_GPS_PORT_CONFIG |= CONFIG_USB_CONFIG; + + return 0; +} + +int usb_cpu_stop(void) +{ + return 0; +} + +int usb_cpu_init_fail(void) +{ + return 0; +} + +#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */ diff --git a/arch/ppc/cpu/mpc5xxx/usb_ohci.c b/arch/ppc/cpu/mpc5xxx/usb_ohci.c new file mode 100644 index 0000000..7976e4d --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/usb_ohci.c @@ -0,0 +1,1646 @@ +/* + * URB OHCI HCD (Host Controller Driver) for USB on the MPC5200. + * + * (C) Copyright 2003-2004 + * Gary Jennejohn, DENX Software Engineering <garyj@denx.de> + * + * (C) Copyright 2004 + * Pierre Aubert, Staubli Faverges <p.aubert@staubli.com> + * + * Note: Much of this code has been derived from Linux 2.4 + * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> + * (C) Copyright 2000-2002 David Brownell + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ +/* + * IMPORTANT NOTES + * 1 - this driver is intended for use with USB Mass Storage Devices + * (BBB) ONLY. There is NO support for Interrupt or Isochronous pipes! + */ + +#include <common.h> + +#ifdef CONFIG_USB_OHCI + +#include <malloc.h> +#include <usb.h> +#include "usb_ohci.h" + +#include <mpc5xxx.h> + +#define OHCI_USE_NPS /* force NoPowerSwitching mode */ +#undef OHCI_VERBOSE_DEBUG /* not always helpful */ +#undef DEBUG +#undef SHOW_INFO +#undef OHCI_FILL_TRACE + +/* For initializing controller (mask in an HCFS mode too) */ +#define OHCI_CONTROL_INIT \ + (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE + +#define readl(a) (*((volatile u32 *)(a))) +#define writel(a, b) (*((volatile u32 *)(b)) = ((volatile u32)a)) + +#define min_t(type,x,y) ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) + +#ifdef DEBUG +#define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg) +#else +#define dbg(format, arg...) do {} while(0) +#endif /* DEBUG */ +#define err(format, arg...) printf("ERROR: " format "\n", ## arg) +#ifdef SHOW_INFO +#define info(format, arg...) printf("INFO: " format "\n", ## arg) +#else +#define info(format, arg...) do {} while(0) +#endif + +#define m16_swap(x) swap_16(x) +#define m32_swap(x) swap_32(x) + +#define ohci_cpu_to_le16(x) (x) +#define ohci_cpu_to_le32(x) (x) + +/* global ohci_t */ +static ohci_t gohci; +/* this must be aligned to a 256 byte boundary */ +struct ohci_hcca ghcca[1]; +/* a pointer to the aligned storage */ +struct ohci_hcca *phcca; +/* this allocates EDs for all possible endpoints */ +struct ohci_device ohci_dev; +/* urb_priv */ +urb_priv_t urb_priv; +/* RHSC flag */ +int got_rhsc; +/* device which was disconnected */ +struct usb_device *devgone; +/* flag guarding URB transation */ +int urb_finished = 0; + +/*-------------------------------------------------------------------------*/ + +/* AMD-756 (D2 rev) reports corrupt register contents in some cases. + * The erratum (#4) description is incorrect. AMD's workaround waits + * till some bits (mostly reserved) are clear; ok for all revs. + */ +#define OHCI_QUIRK_AMD756 0xabcd +#define read_roothub(hc, register, mask) ({ \ + u32 temp = readl (&hc->regs->roothub.register); \ + if (hc->flags & OHCI_QUIRK_AMD756) \ + while (temp & mask) \ + temp = readl (&hc->regs->roothub.register); \ + temp; }) + +static u32 roothub_a (struct ohci *hc) + { return read_roothub (hc, a, 0xfc0fe000); } +static inline u32 roothub_b (struct ohci *hc) + { return readl (&hc->regs->roothub.b); } +static inline u32 roothub_status (struct ohci *hc) + { return readl (&hc->regs->roothub.status); } +static u32 roothub_portstatus (struct ohci *hc, int i) + { return read_roothub (hc, portstatus [i], 0xffe0fce0); } + + +/* forward declaration */ +static int hc_interrupt (void); +static void +td_submit_job (struct usb_device * dev, unsigned long pipe, void * buffer, + int transfer_len, struct devrequest * setup, urb_priv_t * urb, int interval); + +/*-------------------------------------------------------------------------* + * URB support functions + *-------------------------------------------------------------------------*/ + +/* free HCD-private data associated with this URB */ + +static void urb_free_priv (urb_priv_t * urb) +{ + int i; + int last; + struct td * td; + + last = urb->length - 1; + if (last >= 0) { + for (i = 0; i <= last; i++) { + td = urb->td[i]; + if (td) { + td->usb_dev = NULL; + urb->td[i] = NULL; + } + } + } +} + +/*-------------------------------------------------------------------------*/ + +#ifdef DEBUG +static int sohci_get_current_frame_number (struct usb_device * dev); + +/* debug| print the main components of an URB + * small: 0) header + data packets 1) just header */ + +static void pkt_print (struct usb_device * dev, unsigned long pipe, void * buffer, + int transfer_len, struct devrequest * setup, char * str, int small) +{ + urb_priv_t * purb = &urb_priv; + + dbg("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,len:%d/%d stat:%#lx", + str, + sohci_get_current_frame_number (dev), + usb_pipedevice (pipe), + usb_pipeendpoint (pipe), + usb_pipeout (pipe)? 'O': 'I', + usb_pipetype (pipe) < 2? (usb_pipeint (pipe)? "INTR": "ISOC"): + (usb_pipecontrol (pipe)? "CTRL": "BULK"), + purb->actual_length, + transfer_len, dev->status); +#ifdef OHCI_VERBOSE_DEBUG + if (!small) { + int i, len; + + if (usb_pipecontrol (pipe)) { + printf (__FILE__ ": cmd(8):"); + for (i = 0; i < 8 ; i++) + printf (" %02x", ((__u8 *) setup) [i]); + printf ("\n"); + } + if (transfer_len > 0 && buffer) { + printf (__FILE__ ": data(%d/%d):", + purb->actual_length, + transfer_len); + len = usb_pipeout (pipe)? + transfer_len: purb->actual_length; + for (i = 0; i < 16 && i < len; i++) + printf (" %02x", ((__u8 *) buffer) [i]); + printf ("%s\n", i < len? "...": ""); + } + } +#endif +} + +/* just for debugging; prints non-empty branches of the int ed tree inclusive iso eds*/ +void ep_print_int_eds (ohci_t *ohci, char * str) { + int i, j; + __u32 * ed_p; + for (i= 0; i < 32; i++) { + j = 5; + ed_p = &(ohci->hcca->int_table [i]); + if (*ed_p == 0) + continue; + printf (__FILE__ ": %s branch int %2d(%2x):", str, i, i); + while (*ed_p != 0 && j--) { + ed_t *ed = (ed_t *)ohci_cpu_to_le32(ed_p); + printf (" ed: %4x;", ed->hwINFO); + ed_p = &ed->hwNextED; + } + printf ("\n"); + } +} + +static void ohci_dump_intr_mask (char *label, __u32 mask) +{ + dbg ("%s: 0x%08x%s%s%s%s%s%s%s%s%s", + label, + mask, + (mask & OHCI_INTR_MIE) ? " MIE" : "", + (mask & OHCI_INTR_OC) ? " OC" : "", + (mask & OHCI_INTR_RHSC) ? " RHSC" : "", + (mask & OHCI_INTR_FNO) ? " FNO" : "", + (mask & OHCI_INTR_UE) ? " UE" : "", + (mask & OHCI_INTR_RD) ? " RD" : "", + (mask & OHCI_INTR_SF) ? " SF" : "", + (mask & OHCI_INTR_WDH) ? " WDH" : "", + (mask & OHCI_INTR_SO) ? " SO" : "" + ); +} + +static void maybe_print_eds (char *label, __u32 value) +{ + ed_t *edp = (ed_t *)value; + + if (value) { + dbg ("%s %08x", label, value); + dbg ("%08x", edp->hwINFO); + dbg ("%08x", edp->hwTailP); + dbg ("%08x", edp->hwHeadP); + dbg ("%08x", edp->hwNextED); + } +} + +static char * hcfs2string (int state) +{ + switch (state) { + case OHCI_USB_RESET: return "reset"; + case OHCI_USB_RESUME: return "resume"; + case OHCI_USB_OPER: return "operational"; + case OHCI_USB_SUSPEND: return "suspend"; + } + return "?"; +} + +/* dump control and status registers */ +static void ohci_dump_status (ohci_t *controller) +{ + struct ohci_regs *regs = controller->regs; + __u32 temp; + + temp = readl (®s->revision) & 0xff; + if (temp != 0x10) + dbg ("spec %d.%d", (temp >> 4), (temp & 0x0f)); + + temp = readl (®s->control); + dbg ("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp, + (temp & OHCI_CTRL_RWE) ? " RWE" : "", + (temp & OHCI_CTRL_RWC) ? " RWC" : "", + (temp & OHCI_CTRL_IR) ? " IR" : "", + hcfs2string (temp & OHCI_CTRL_HCFS), + (temp & OHCI_CTRL_BLE) ? " BLE" : "", + (temp & OHCI_CTRL_CLE) ? " CLE" : "", + (temp & OHCI_CTRL_IE) ? " IE" : "", + (temp & OHCI_CTRL_PLE) ? " PLE" : "", + temp & OHCI_CTRL_CBSR + ); + + temp = readl (®s->cmdstatus); + dbg ("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp, + (temp & OHCI_SOC) >> 16, + (temp & OHCI_OCR) ? " OCR" : "", + (temp & OHCI_BLF) ? " BLF" : "", + (temp & OHCI_CLF) ? " CLF" : "", + (temp & OHCI_HCR) ? " HCR" : "" + ); + + ohci_dump_intr_mask ("intrstatus", readl (®s->intrstatus)); + ohci_dump_intr_mask ("intrenable", readl (®s->intrenable)); + + maybe_print_eds ("ed_periodcurrent", readl (®s->ed_periodcurrent)); + + maybe_print_eds ("ed_controlhead", readl (®s->ed_controlhead)); + maybe_print_eds ("ed_controlcurrent", readl (®s->ed_controlcurrent)); + + maybe_print_eds ("ed_bulkhead", readl (®s->ed_bulkhead)); + maybe_print_eds ("ed_bulkcurrent", readl (®s->ed_bulkcurrent)); + + maybe_print_eds ("donehead", readl (®s->donehead)); +} + +static void ohci_dump_roothub (ohci_t *controller, int verbose) +{ + __u32 temp, ndp, i; + + temp = roothub_a (controller); + ndp = (temp & RH_A_NDP); + + if (verbose) { + dbg ("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp, + ((temp & RH_A_POTPGT) >> 24) & 0xff, + (temp & RH_A_NOCP) ? " NOCP" : "", + (temp & RH_A_OCPM) ? " OCPM" : "", + (temp & RH_A_DT) ? " DT" : "", + (temp & RH_A_NPS) ? " NPS" : "", + (temp & RH_A_PSM) ? " PSM" : "", + ndp + ); + temp = roothub_b (controller); + dbg ("roothub.b: %08x PPCM=%04x DR=%04x", + temp, + (temp & RH_B_PPCM) >> 16, + (temp & RH_B_DR) + ); + temp = roothub_status (controller); + dbg ("roothub.status: %08x%s%s%s%s%s%s", + temp, + (temp & RH_HS_CRWE) ? " CRWE" : "", + (temp & RH_HS_OCIC) ? " OCIC" : "", + (temp & RH_HS_LPSC) ? " LPSC" : "", + (temp & RH_HS_DRWE) ? " DRWE" : "", + (temp & RH_HS_OCI) ? " OCI" : "", + (temp & RH_HS_LPS) ? " LPS" : "" + ); + } + + for (i = 0; i < ndp; i++) { + temp = roothub_portstatus (controller, i); + dbg ("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s", + i, + temp, + (temp & RH_PS_PRSC) ? " PRSC" : "", + (temp & RH_PS_OCIC) ? " OCIC" : "", + (temp & RH_PS_PSSC) ? " PSSC" : "", + (temp & RH_PS_PESC) ? " PESC" : "", + (temp & RH_PS_CSC) ? " CSC" : "", + + (temp & RH_PS_LSDA) ? " LSDA" : "", + (temp & RH_PS_PPS) ? " PPS" : "", + (temp & RH_PS_PRS) ? " PRS" : "", + (temp & RH_PS_POCI) ? " POCI" : "", + (temp & RH_PS_PSS) ? " PSS" : "", + + (temp & RH_PS_PES) ? " PES" : "", + (temp & RH_PS_CCS) ? " CCS" : "" + ); + } +} + +static void ohci_dump (ohci_t *controller, int verbose) +{ + dbg ("OHCI controller usb-%s state", controller->slot_name); + + /* dumps some of the state we know about */ + ohci_dump_status (controller); + if (verbose) + ep_print_int_eds (controller, "hcca"); + dbg ("hcca frame #%04x", controller->hcca->frame_no); + ohci_dump_roothub (controller, 1); +} + + +#endif /* DEBUG */ + +/*-------------------------------------------------------------------------* + * Interface functions (URB) + *-------------------------------------------------------------------------*/ + +/* get a transfer request */ + +int sohci_submit_job(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup, int interval) +{ + ohci_t *ohci; + ed_t * ed; + urb_priv_t *purb_priv; + int i, size = 0; + + ohci = &gohci; + + /* when controller's hung, permit only roothub cleanup attempts + * such as powering down ports */ + if (ohci->disabled) { + err("sohci_submit_job: EPIPE"); + return -1; + } + + /* if we have an unfinished URB from previous transaction let's + * fail and scream as quickly as possible so as not to corrupt + * further communication */ + if (!urb_finished) { + err("sohci_submit_job: URB NOT FINISHED"); + return -1; + } + /* we're about to begin a new transaction here so mark the URB unfinished */ + urb_finished = 0; + + /* every endpoint has a ed, locate and fill it */ + if (!(ed = ep_add_ed (dev, pipe))) { + err("sohci_submit_job: ENOMEM"); + return -1; + } + + /* for the private part of the URB we need the number of TDs (size) */ + switch (usb_pipetype (pipe)) { + case PIPE_BULK: /* one TD for every 4096 Byte */ + size = (transfer_len - 1) / 4096 + 1; + break; + case PIPE_CONTROL: /* 1 TD for setup, 1 for ACK and 1 for every 4096 B */ + size = (transfer_len == 0)? 2: + (transfer_len - 1) / 4096 + 3; + break; + } + + if (size >= (N_URB_TD - 1)) { + err("need %d TDs, only have %d", size, N_URB_TD); + return -1; + } + purb_priv = &urb_priv; + purb_priv->pipe = pipe; + + /* fill the private part of the URB */ + purb_priv->length = size; + purb_priv->ed = ed; + purb_priv->actual_length = 0; + + /* allocate the TDs */ + /* note that td[0] was allocated in ep_add_ed */ + for (i = 0; i < size; i++) { + purb_priv->td[i] = td_alloc (dev); + if (!purb_priv->td[i]) { + purb_priv->length = i; + urb_free_priv (purb_priv); + err("sohci_submit_job: ENOMEM"); + return -1; + } + } + + if (ed->state == ED_NEW || (ed->state & ED_DEL)) { + urb_free_priv (purb_priv); + err("sohci_submit_job: EINVAL"); + return -1; + } + + /* link the ed into a chain if is not already */ + if (ed->state != ED_OPER) + ep_link (ohci, ed); + + /* fill the TDs and link it to the ed */ + td_submit_job(dev, pipe, buffer, transfer_len, setup, purb_priv, interval); + + return 0; +} + +/*-------------------------------------------------------------------------*/ + +#ifdef DEBUG +/* tell us the current USB frame number */ + +static int sohci_get_current_frame_number (struct usb_device *usb_dev) +{ + ohci_t *ohci = &gohci; + + return ohci_cpu_to_le16 (ohci->hcca->frame_no); +} +#endif + +/*-------------------------------------------------------------------------* + * ED handling functions + *-------------------------------------------------------------------------*/ + +/* link an ed into one of the HC chains */ + +static int ep_link (ohci_t *ohci, ed_t *edi) +{ + volatile ed_t *ed = edi; + + ed->state = ED_OPER; + + switch (ed->type) { + case PIPE_CONTROL: + ed->hwNextED = 0; + if (ohci->ed_controltail == NULL) { + writel (ed, &ohci->regs->ed_controlhead); + } else { + ohci->ed_controltail->hwNextED = ohci_cpu_to_le32 ((unsigned long)ed); + } + ed->ed_prev = ohci->ed_controltail; + if (!ohci->ed_controltail && !ohci->ed_rm_list[0] && + !ohci->ed_rm_list[1] && !ohci->sleeping) { + ohci->hc_control |= OHCI_CTRL_CLE; + writel (ohci->hc_control, &ohci->regs->control); + } + ohci->ed_controltail = edi; + break; + + case PIPE_BULK: + ed->hwNextED = 0; + if (ohci->ed_bulktail == NULL) { + writel (ed, &ohci->regs->ed_bulkhead); + } else { + ohci->ed_bulktail->hwNextED = ohci_cpu_to_le32 ((unsigned long)ed); + } + ed->ed_prev = ohci->ed_bulktail; + if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] && + !ohci->ed_rm_list[1] && !ohci->sleeping) { + ohci->hc_control |= OHCI_CTRL_BLE; + writel (ohci->hc_control, &ohci->regs->control); + } + ohci->ed_bulktail = edi; + break; + } + return 0; +} + +/*-------------------------------------------------------------------------*/ + +/* unlink an ed from one of the HC chains. + * just the link to the ed is unlinked. + * the link from the ed still points to another operational ed or 0 + * so the HC can eventually finish the processing of the unlinked ed */ + +static int ep_unlink (ohci_t *ohci, ed_t *edi) +{ + volatile ed_t *ed = edi; + + ed->hwINFO |= ohci_cpu_to_le32 (OHCI_ED_SKIP); + + switch (ed->type) { + case PIPE_CONTROL: + if (ed->ed_prev == NULL) { + if (!ed->hwNextED) { + ohci->hc_control &= ~OHCI_CTRL_CLE; + writel (ohci->hc_control, &ohci->regs->control); + } + writel (ohci_cpu_to_le32 (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_controlhead); + } else { + ed->ed_prev->hwNextED = ed->hwNextED; + } + if (ohci->ed_controltail == ed) { + ohci->ed_controltail = ed->ed_prev; + } else { + ((ed_t *)ohci_cpu_to_le32 (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; + } + break; + + case PIPE_BULK: + if (ed->ed_prev == NULL) { + if (!ed->hwNextED) { + ohci->hc_control &= ~OHCI_CTRL_BLE; + writel (ohci->hc_control, &ohci->regs->control); + } + writel (ohci_cpu_to_le32 (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_bulkhead); + } else { + ed->ed_prev->hwNextED = ed->hwNextED; + } + if (ohci->ed_bulktail == ed) { + ohci->ed_bulktail = ed->ed_prev; + } else { + ((ed_t *)ohci_cpu_to_le32 (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; + } + break; + } + ed->state = ED_UNLINK; + return 0; +} + + +/*-------------------------------------------------------------------------*/ + +/* add/reinit an endpoint; this should be done once at the usb_set_configuration command, + * but the USB stack is a little bit stateless so we do it at every transaction + * if the state of the ed is ED_NEW then a dummy td is added and the state is changed to ED_UNLINK + * in all other cases the state is left unchanged + * the ed info fields are setted anyway even though most of them should not change */ + +static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe) +{ + td_t *td; + ed_t *ed_ret; + volatile ed_t *ed; + + ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint (pipe) << 1) | + (usb_pipecontrol (pipe)? 0: usb_pipeout (pipe))]; + + if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) { + err("ep_add_ed: pending delete"); + /* pending delete request */ + return NULL; + } + + if (ed->state == ED_NEW) { + ed->hwINFO = ohci_cpu_to_le32 (OHCI_ED_SKIP); /* skip ed */ + /* dummy td; end of td list for ed */ + td = td_alloc (usb_dev); + ed->hwTailP = ohci_cpu_to_le32 ((unsigned long)td); + ed->hwHeadP = ed->hwTailP; + ed->state = ED_UNLINK; + ed->type = usb_pipetype (pipe); + ohci_dev.ed_cnt++; + } + + ed->hwINFO = ohci_cpu_to_le32 (usb_pipedevice (pipe) + | usb_pipeendpoint (pipe) << 7 + | (usb_pipeisoc (pipe)? 0x8000: 0) + | (usb_pipecontrol (pipe)? 0: (usb_pipeout (pipe)? 0x800: 0x1000)) + | usb_pipeslow (pipe) << 13 + | usb_maxpacket (usb_dev, pipe) << 16); + + return ed_ret; +} + +/*-------------------------------------------------------------------------* + * TD handling functions + *-------------------------------------------------------------------------*/ + +/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */ + +static void td_fill (ohci_t *ohci, unsigned int info, + void *data, int len, + struct usb_device *dev, int index, urb_priv_t *urb_priv) +{ + volatile td_t *td, *td_pt; +#ifdef OHCI_FILL_TRACE + int i; +#endif + + if (index > urb_priv->length) { + err("index > length"); + return; + } + /* use this td as the next dummy */ + td_pt = urb_priv->td [index]; + td_pt->hwNextTD = 0; + + /* fill the old dummy TD */ + td = urb_priv->td [index] = (td_t *)(ohci_cpu_to_le32 (urb_priv->ed->hwTailP) & ~0xf); + + td->ed = urb_priv->ed; + td->next_dl_td = NULL; + td->index = index; + td->data = (__u32)data; +#ifdef OHCI_FILL_TRACE + if (usb_pipebulk(urb_priv->pipe) && usb_pipeout(urb_priv->pipe)) { + for (i = 0; i < len; i++) + printf("td->data[%d] %#2x ",i, ((unsigned char *)td->data)[i]); + printf("\n"); + } +#endif + if (!len) + data = 0; + + td->hwINFO = ohci_cpu_to_le32 (info); + td->hwCBP = ohci_cpu_to_le32 ((unsigned long)data); + if (data) + td->hwBE = ohci_cpu_to_le32 ((unsigned long)(data + len - 1)); + else + td->hwBE = 0; + td->hwNextTD = ohci_cpu_to_le32 ((unsigned long)td_pt); + + /* append to queue */ + td->ed->hwTailP = td->hwNextTD; +} + +/*-------------------------------------------------------------------------*/ + +/* prepare all TDs of a transfer */ +static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup, urb_priv_t *urb, int interval) +{ + ohci_t *ohci = &gohci; + int data_len = transfer_len; + void *data; + int cnt = 0; + __u32 info = 0; + unsigned int toggle = 0; + + /* OHCI handles the DATA-toggles itself, we just use the USB-toggle bits for reseting */ + if(usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) { + toggle = TD_T_TOGGLE; + } else { + toggle = TD_T_DATA0; + usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 1); + } + urb->td_cnt = 0; + if (data_len) + data = buffer; + else + data = 0; + + switch (usb_pipetype (pipe)) { + case PIPE_BULK: + info = usb_pipeout (pipe)? + TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ; + while(data_len > 4096) { + td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, 4096, dev, cnt, urb); + data += 4096; data_len -= 4096; cnt++; + } + info = usb_pipeout (pipe)? + TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ; + td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, data_len, dev, cnt, urb); + cnt++; + + if (!ohci->sleeping) + writel (OHCI_BLF, &ohci->regs->cmdstatus); /* start bulk list */ + break; + + case PIPE_CONTROL: + info = TD_CC | TD_DP_SETUP | TD_T_DATA0; + td_fill (ohci, info, setup, 8, dev, cnt++, urb); + if (data_len > 0) { + info = usb_pipeout (pipe)? + TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : TD_CC | TD_R | TD_DP_IN | TD_T_DATA1; + /* NOTE: mishandles transfers >8K, some >4K */ + td_fill (ohci, info, data, data_len, dev, cnt++, urb); + } + info = usb_pipeout (pipe)? + TD_CC | TD_DP_IN | TD_T_DATA1: TD_CC | TD_DP_OUT | TD_T_DATA1; + td_fill (ohci, info, data, 0, dev, cnt++, urb); + if (!ohci->sleeping) + writel (OHCI_CLF, &ohci->regs->cmdstatus); /* start Control list */ + break; + } + if (urb->length != cnt) + dbg("TD LENGTH %d != CNT %d", urb->length, cnt); +} + +/*-------------------------------------------------------------------------* + * Done List handling functions + *-------------------------------------------------------------------------*/ + + +/* calculate the transfer length and update the urb */ + +static void dl_transfer_length(td_t * td) +{ + __u32 tdINFO, tdBE, tdCBP; + urb_priv_t *lurb_priv = &urb_priv; + + tdINFO = ohci_cpu_to_le32 (td->hwINFO); + tdBE = ohci_cpu_to_le32 (td->hwBE); + tdCBP = ohci_cpu_to_le32 (td->hwCBP); + + + if (!(usb_pipecontrol(lurb_priv->pipe) && + ((td->index == 0) || (td->index == lurb_priv->length - 1)))) { + if (tdBE != 0) { + if (td->hwCBP == 0) + lurb_priv->actual_length += tdBE - td->data + 1; + else + lurb_priv->actual_length += tdCBP - td->data; + } + } +} + +/*-------------------------------------------------------------------------*/ + +/* replies to the request have to be on a FIFO basis so + * we reverse the reversed done-list */ + +static td_t * dl_reverse_done_list (ohci_t *ohci) +{ + __u32 td_list_hc; + td_t *td_rev = NULL; + td_t *td_list = NULL; + urb_priv_t *lurb_priv = NULL; + + td_list_hc = ohci_cpu_to_le32 (ohci->hcca->done_head) & 0xfffffff0; + ohci->hcca->done_head = 0; + + while (td_list_hc) { + td_list = (td_t *)td_list_hc; + + if (TD_CC_GET (ohci_cpu_to_le32 (td_list->hwINFO))) { + lurb_priv = &urb_priv; + dbg(" USB-error/status: %x : %p", + TD_CC_GET (ohci_cpu_to_le32 (td_list->hwINFO)), td_list); + if (td_list->ed->hwHeadP & ohci_cpu_to_le32 (0x1)) { + if (lurb_priv && ((td_list->index + 1) < lurb_priv->length)) { + td_list->ed->hwHeadP = + (lurb_priv->td[lurb_priv->length - 1]->hwNextTD & ohci_cpu_to_le32 (0xfffffff0)) | + (td_list->ed->hwHeadP & ohci_cpu_to_le32 (0x2)); + lurb_priv->td_cnt += lurb_priv->length - td_list->index - 1; + } else + td_list->ed->hwHeadP &= ohci_cpu_to_le32 (0xfffffff2); + } + td_list->hwNextTD = 0; + } + + td_list->next_dl_td = td_rev; + td_rev = td_list; + td_list_hc = ohci_cpu_to_le32 (td_list->hwNextTD) & 0xfffffff0; + } + return td_list; +} + +/*-------------------------------------------------------------------------*/ + +/* td done list */ +static int dl_done_list (ohci_t *ohci, td_t *td_list) +{ + td_t *td_list_next = NULL; + ed_t *ed; + int cc = 0; + int stat = 0; + /* urb_t *urb; */ + urb_priv_t *lurb_priv; + __u32 tdINFO, edHeadP, edTailP; + + while (td_list) { + td_list_next = td_list->next_dl_td; + + lurb_priv = &urb_priv; + tdINFO = ohci_cpu_to_le32 (td_list->hwINFO); + + ed = td_list->ed; + + dl_transfer_length(td_list); + + /* error code of transfer */ + cc = TD_CC_GET (tdINFO); + if (++(lurb_priv->td_cnt) == lurb_priv->length) { + if ((ed->state & (ED_OPER | ED_UNLINK)) + && (lurb_priv->state != URB_DEL)) { + dbg("ConditionCode %#x", cc); + stat = cc_to_error[cc]; + urb_finished = 1; + } + } + + if (ed->state != ED_NEW) { + edHeadP = ohci_cpu_to_le32 (ed->hwHeadP) & 0xfffffff0; + edTailP = ohci_cpu_to_le32 (ed->hwTailP); + + /* unlink eds if they are not busy */ + if ((edHeadP == edTailP) && (ed->state == ED_OPER)) + ep_unlink (ohci, ed); + } + + td_list = td_list_next; + } + return stat; +} + +/*-------------------------------------------------------------------------* + * Virtual Root Hub + *-------------------------------------------------------------------------*/ + +/* Device descriptor */ +static __u8 root_hub_dev_des[] = +{ + 0x12, /* __u8 bLength; */ + 0x01, /* __u8 bDescriptorType; Device */ + 0x10, /* __u16 bcdUSB; v1.1 */ + 0x01, + 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */ + 0x00, /* __u8 bDeviceSubClass; */ + 0x00, /* __u8 bDeviceProtocol; */ + 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */ + 0x00, /* __u16 idVendor; */ + 0x00, + 0x00, /* __u16 idProduct; */ + 0x00, + 0x00, /* __u16 bcdDevice; */ + 0x00, + 0x00, /* __u8 iManufacturer; */ + 0x01, /* __u8 iProduct; */ + 0x00, /* __u8 iSerialNumber; */ + 0x01 /* __u8 bNumConfigurations; */ +}; + + +/* Configuration descriptor */ +static __u8 root_hub_config_des[] = +{ + 0x09, /* __u8 bLength; */ + 0x02, /* __u8 bDescriptorType; Configuration */ + 0x19, /* __u16 wTotalLength; */ + 0x00, + 0x01, /* __u8 bNumInterfaces; */ + 0x01, /* __u8 bConfigurationValue; */ + 0x00, /* __u8 iConfiguration; */ + 0x40, /* __u8 bmAttributes; + Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */ + 0x00, /* __u8 MaxPower; */ + + /* interface */ + 0x09, /* __u8 if_bLength; */ + 0x04, /* __u8 if_bDescriptorType; Interface */ + 0x00, /* __u8 if_bInterfaceNumber; */ + 0x00, /* __u8 if_bAlternateSetting; */ + 0x01, /* __u8 if_bNumEndpoints; */ + 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */ + 0x00, /* __u8 if_bInterfaceSubClass; */ + 0x00, /* __u8 if_bInterfaceProtocol; */ + 0x00, /* __u8 if_iInterface; */ + + /* endpoint */ + 0x07, /* __u8 ep_bLength; */ + 0x05, /* __u8 ep_bDescriptorType; Endpoint */ + 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */ + 0x03, /* __u8 ep_bmAttributes; Interrupt */ + 0x02, /* __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */ + 0x00, + 0xff /* __u8 ep_bInterval; 255 ms */ +}; + +static unsigned char root_hub_str_index0[] = +{ + 0x04, /* __u8 bLength; */ + 0x03, /* __u8 bDescriptorType; String-descriptor */ + 0x09, /* __u8 lang ID */ + 0x04, /* __u8 lang ID */ +}; + +static unsigned char root_hub_str_index1[] = +{ + 28, /* __u8 bLength; */ + 0x03, /* __u8 bDescriptorType; String-descriptor */ + 'O', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'H', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'C', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'I', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + ' ', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'R', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'o', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'o', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 't', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + ' ', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'H', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'u', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'b', /* __u8 Unicode */ + 0, /* __u8 Unicode */ +}; + +/* Hub class-specific descriptor is constructed dynamically */ + + +/*-------------------------------------------------------------------------*/ + +#define OK(x) len = (x); break +#ifdef DEBUG +#define WR_RH_STAT(x) {info("WR:status %#8x", (x));writel((x), &gohci.regs->roothub.status);} +#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, (x));writel((x), &gohci.regs->roothub.portstatus[wIndex-1]);} +#else +#define WR_RH_STAT(x) writel((x), &gohci.regs->roothub.status) +#define WR_RH_PORTSTAT(x) writel((x), &gohci.regs->roothub.portstatus[wIndex-1]) +#endif +#define RD_RH_STAT roothub_status(&gohci) +#define RD_RH_PORTSTAT roothub_portstatus(&gohci,wIndex-1) + +/* request to virtual root hub */ + +int rh_check_port_status(ohci_t *controller) +{ + __u32 temp, ndp, i; + int res; + + res = -1; + temp = roothub_a (controller); + ndp = (temp & RH_A_NDP); + for (i = 0; i < ndp; i++) { + temp = roothub_portstatus (controller, i); + /* check for a device disconnect */ + if (((temp & (RH_PS_PESC | RH_PS_CSC)) == + (RH_PS_PESC | RH_PS_CSC)) && + ((temp & RH_PS_CCS) == 0)) { + res = i; + break; + } + } + return res; +} + +static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe, + void *buffer, int transfer_len, struct devrequest *cmd) +{ + void * data = buffer; + int leni = transfer_len; + int len = 0; + int stat = 0; + __u32 datab[4]; + __u8 *data_buf = (__u8 *)datab; + __u16 bmRType_bReq; + __u16 wValue; + __u16 wIndex; + __u16 wLength; + +#ifdef DEBUG +urb_priv.actual_length = 0; +pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe)); +#endif + if (usb_pipeint(pipe)) { + info("Root-Hub submit IRQ: NOT implemented"); + return 0; + } + + bmRType_bReq = cmd->requesttype | (cmd->request << 8); + wValue = m16_swap (cmd->value); + wIndex = m16_swap (cmd->index); + wLength = m16_swap (cmd->length); + + info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x", + dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength); + + switch (bmRType_bReq) { + /* Request Destination: + without flags: Device, + RH_INTERFACE: interface, + RH_ENDPOINT: endpoint, + RH_CLASS means HUB here, + RH_OTHER | RH_CLASS almost ever means HUB_PORT here + */ + + case RH_GET_STATUS: + *(__u16 *) data_buf = m16_swap (1); OK (2); + case RH_GET_STATUS | RH_INTERFACE: + *(__u16 *) data_buf = m16_swap (0); OK (2); + case RH_GET_STATUS | RH_ENDPOINT: + *(__u16 *) data_buf = m16_swap (0); OK (2); + case RH_GET_STATUS | RH_CLASS: + *(__u32 *) data_buf = m32_swap ( + RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE)); + OK (4); + case RH_GET_STATUS | RH_OTHER | RH_CLASS: + *(__u32 *) data_buf = m32_swap (RD_RH_PORTSTAT); OK (4); + + case RH_CLEAR_FEATURE | RH_ENDPOINT: + switch (wValue) { + case (RH_ENDPOINT_STALL): OK (0); + } + break; + + case RH_CLEAR_FEATURE | RH_CLASS: + switch (wValue) { + case RH_C_HUB_LOCAL_POWER: + OK(0); + case (RH_C_HUB_OVER_CURRENT): + WR_RH_STAT(RH_HS_OCIC); OK (0); + } + break; + + case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: + switch (wValue) { + case (RH_PORT_ENABLE): + WR_RH_PORTSTAT (RH_PS_CCS ); OK (0); + case (RH_PORT_SUSPEND): + WR_RH_PORTSTAT (RH_PS_POCI); OK (0); + case (RH_PORT_POWER): + WR_RH_PORTSTAT (RH_PS_LSDA); OK (0); + case (RH_C_PORT_CONNECTION): + WR_RH_PORTSTAT (RH_PS_CSC ); OK (0); + case (RH_C_PORT_ENABLE): + WR_RH_PORTSTAT (RH_PS_PESC); OK (0); + case (RH_C_PORT_SUSPEND): + WR_RH_PORTSTAT (RH_PS_PSSC); OK (0); + case (RH_C_PORT_OVER_CURRENT): + WR_RH_PORTSTAT (RH_PS_OCIC); OK (0); + case (RH_C_PORT_RESET): + WR_RH_PORTSTAT (RH_PS_PRSC); OK (0); + } + break; + + case RH_SET_FEATURE | RH_OTHER | RH_CLASS: + switch (wValue) { + case (RH_PORT_SUSPEND): + WR_RH_PORTSTAT (RH_PS_PSS ); OK (0); + case (RH_PORT_RESET): /* BUG IN HUP CODE *********/ + if (RD_RH_PORTSTAT & RH_PS_CCS) + WR_RH_PORTSTAT (RH_PS_PRS); + OK (0); + case (RH_PORT_POWER): + WR_RH_PORTSTAT (RH_PS_PPS ); OK (0); + case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/ + if (RD_RH_PORTSTAT & RH_PS_CCS) + WR_RH_PORTSTAT (RH_PS_PES ); + OK (0); + } + break; + + case RH_SET_ADDRESS: gohci.rh.devnum = wValue; OK(0); + + case RH_GET_DESCRIPTOR: + switch ((wValue & 0xff00) >> 8) { + case (0x01): /* device descriptor */ + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_dev_des), + wLength)); + data_buf = root_hub_dev_des; OK(len); + case (0x02): /* configuration descriptor */ + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_config_des), + wLength)); + data_buf = root_hub_config_des; OK(len); + case (0x03): /* string descriptors */ + if(wValue==0x0300) { + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_str_index0), + wLength)); + data_buf = root_hub_str_index0; + OK(len); + } + if(wValue==0x0301) { + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_str_index1), + wLength)); + data_buf = root_hub_str_index1; + OK(len); + } + default: + stat = USB_ST_STALLED; + } + break; + + case RH_GET_DESCRIPTOR | RH_CLASS: + { + __u32 temp = roothub_a (&gohci); + + data_buf [0] = 9; /* min length; */ + data_buf [1] = 0x29; + data_buf [2] = temp & RH_A_NDP; + data_buf [3] = 0; + if (temp & RH_A_PSM) /* per-port power switching? */ + data_buf [3] |= 0x1; + if (temp & RH_A_NOCP) /* no overcurrent reporting? */ + data_buf [3] |= 0x10; + else if (temp & RH_A_OCPM) /* per-port overcurrent reporting? */ + data_buf [3] |= 0x8; + + /* corresponds to data_buf[4-7] */ + datab [1] = 0; + data_buf [5] = (temp & RH_A_POTPGT) >> 24; + temp = roothub_b (&gohci); + data_buf [7] = temp & RH_B_DR; + if (data_buf [2] < 7) { + data_buf [8] = 0xff; + } else { + data_buf [0] += 2; + data_buf [8] = (temp & RH_B_DR) >> 8; + data_buf [10] = data_buf [9] = 0xff; + } + + len = min_t(unsigned int, leni, + min_t(unsigned int, data_buf [0], wLength)); + OK (len); + } + + case RH_GET_CONFIGURATION: *(__u8 *) data_buf = 0x01; OK (1); + + case RH_SET_CONFIGURATION: WR_RH_STAT (0x10000); OK (0); + + default: + dbg ("unsupported root hub command"); + stat = USB_ST_STALLED; + } + +#ifdef DEBUG + ohci_dump_roothub (&gohci, 1); +#endif + + len = min_t(int, len, leni); + if (data != data_buf) + memcpy (data, data_buf, len); + dev->act_len = len; + dev->status = stat; + +#ifdef DEBUG + if (transfer_len) + urb_priv.actual_length = transfer_len; + pkt_print(dev, pipe, buffer, transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/); +#endif + + return stat; +} + +/*-------------------------------------------------------------------------*/ + +/* common code for handling submit messages - used for all but root hub */ +/* accesses. */ +int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup, int interval) +{ + int stat = 0; + int maxsize = usb_maxpacket(dev, pipe); + int timeout; + + /* device pulled? Shortcut the action. */ + if (devgone == dev) { + dev->status = USB_ST_CRC_ERR; + return 0; + } + +#ifdef DEBUG + urb_priv.actual_length = 0; + pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe)); +#endif + if (!maxsize) { + err("submit_common_message: pipesize for pipe %lx is zero", + pipe); + return -1; + } + + if (sohci_submit_job(dev, pipe, buffer, transfer_len, setup, interval) < 0) { + err("sohci_submit_job failed"); + return -1; + } + + /* allow more time for a BULK device to react - some are slow */ +#define BULK_TO 5000 /* timeout in milliseconds */ + if (usb_pipebulk(pipe)) + timeout = BULK_TO; + else + timeout = 100; + + /* wait for it to complete */ + for (;;) { + /* check whether the controller is done */ + stat = hc_interrupt(); + if (stat < 0) { + stat = USB_ST_CRC_ERR; + break; + } + + /* NOTE: since we are not interrupt driven in U-Boot and always + * handle only one URB at a time, we cannot assume the + * transaction finished on the first successful return from + * hc_interrupt().. unless the flag for current URB is set, + * meaning that all TD's to/from device got actually + * transferred and processed. If the current URB is not + * finished we need to re-iterate this loop so as + * hc_interrupt() gets called again as there needs to be some + * more TD's to process still */ + if ((stat >= 0) && (stat != 0xff) && (urb_finished)) { + /* 0xff is returned for an SF-interrupt */ + break; + } + + if (--timeout) { + wait_ms(1); + if (!urb_finished) + dbg("\%"); + + } else { + err("CTL:TIMEOUT "); + dbg("submit_common_msg: TO status %x\n", stat); + stat = USB_ST_CRC_ERR; + urb_finished = 1; + break; + } + } +#if 0 + /* we got an Root Hub Status Change interrupt */ + if (got_rhsc) { +#ifdef DEBUG + ohci_dump_roothub (&gohci, 1); +#endif + got_rhsc = 0; + /* abuse timeout */ + timeout = rh_check_port_status(&gohci); + if (timeout >= 0) { +#if 0 /* this does nothing useful, but leave it here in case that changes */ + /* the called routine adds 1 to the passed value */ + usb_hub_port_connect_change(gohci.rh.dev, timeout - 1); +#endif + /* + * XXX + * This is potentially dangerous because it assumes + * that only one device is ever plugged in! + */ + devgone = dev; + } + } +#endif + + dev->status = stat; + dev->act_len = transfer_len; + +#ifdef DEBUG + pkt_print(dev, pipe, buffer, transfer_len, setup, "RET(ctlr)", usb_pipein(pipe)); +#endif + + /* free TDs in urb_priv */ + urb_free_priv (&urb_priv); + return 0; +} + +/* submit routines called from usb.c */ +int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len) +{ + info("submit_bulk_msg"); + return submit_common_msg(dev, pipe, buffer, transfer_len, NULL, 0); +} + +int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup) +{ + int maxsize = usb_maxpacket(dev, pipe); + + info("submit_control_msg"); +#ifdef DEBUG + urb_priv.actual_length = 0; + pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe)); +#endif + if (!maxsize) { + err("submit_control_message: pipesize for pipe %lx is zero", + pipe); + return -1; + } + if (((pipe >> 8) & 0x7f) == gohci.rh.devnum) { + gohci.rh.dev = dev; + /* root hub - redirect */ + return ohci_submit_rh_msg(dev, pipe, buffer, transfer_len, + setup); + } + + return submit_common_msg(dev, pipe, buffer, transfer_len, setup, 0); +} + +int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, int interval) +{ + info("submit_int_msg"); + return -1; +} + +/*-------------------------------------------------------------------------* + * HC functions + *-------------------------------------------------------------------------*/ + +/* reset the HC and BUS */ + +static int hc_reset (ohci_t *ohci) +{ + int timeout = 30; + int smm_timeout = 50; /* 0,5 sec */ + + if (readl (&ohci->regs->control) & OHCI_CTRL_IR) { /* SMM owns the HC */ + writel (OHCI_OCR, &ohci->regs->cmdstatus); /* request ownership */ + info("USB HC TakeOver from SMM"); + while (readl (&ohci->regs->control) & OHCI_CTRL_IR) { + wait_ms (10); + if (--smm_timeout == 0) { + err("USB HC TakeOver failed!"); + return -1; + } + } + } + + /* Disable HC interrupts */ + writel (OHCI_INTR_MIE, &ohci->regs->intrdisable); + + dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;", + ohci->slot_name, + readl (&ohci->regs->control)); + + /* Reset USB (needed by some controllers) */ + ohci->hc_control = 0; + writel (ohci->hc_control, &ohci->regs->control); + + /* HC Reset requires max 10 us delay */ + writel (OHCI_HCR, &ohci->regs->cmdstatus); + while ((readl (&ohci->regs->cmdstatus) & OHCI_HCR) != 0) { + if (--timeout == 0) { + err("USB HC reset timed out!"); + return -1; + } + udelay (1); + } + return 0; +} + +/*-------------------------------------------------------------------------*/ + +/* Start an OHCI controller, set the BUS operational + * enable interrupts + * connect the virtual root hub */ + +static int hc_start (ohci_t * ohci) +{ + __u32 mask; + unsigned int fminterval; + + ohci->disabled = 1; + + /* Tell the controller where the control and bulk lists are + * The lists are empty now. */ + + writel (0, &ohci->regs->ed_controlhead); + writel (0, &ohci->regs->ed_bulkhead); + + writel ((__u32)ohci->hcca, &ohci->regs->hcca); /* a reset clears this */ + + fminterval = 0x2edf; + writel ((fminterval * 9) / 10, &ohci->regs->periodicstart); + fminterval |= ((((fminterval - 210) * 6) / 7) << 16); + writel (fminterval, &ohci->regs->fminterval); + writel (0x628, &ohci->regs->lsthresh); + + /* start controller operations */ + ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER; + ohci->disabled = 0; + writel (ohci->hc_control, &ohci->regs->control); + + /* disable all interrupts */ + mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD | + OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC | + OHCI_INTR_OC | OHCI_INTR_MIE); + writel (mask, &ohci->regs->intrdisable); + /* clear all interrupts */ + mask &= ~OHCI_INTR_MIE; + writel (mask, &ohci->regs->intrstatus); + /* Choose the interrupts we care about now - but w/o MIE */ + mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO; + writel (mask, &ohci->regs->intrenable); + +#ifdef OHCI_USE_NPS + /* required for AMD-756 and some Mac platforms */ + writel ((roothub_a (ohci) | RH_A_NPS) & ~RH_A_PSM, + &ohci->regs->roothub.a); + writel (RH_HS_LPSC, &ohci->regs->roothub.status); +#endif /* OHCI_USE_NPS */ + +#define mdelay(n) ({unsigned long msec=(n); while (msec--) udelay(1000);}) + /* POTPGT delay is bits 24-31, in 2 ms units. */ + mdelay ((roothub_a (ohci) >> 23) & 0x1fe); + + /* connect the virtual root hub */ + ohci->rh.devnum = 0; + + return 0; +} + +/*-------------------------------------------------------------------------*/ + +/* an interrupt happens */ + +static int +hc_interrupt (void) +{ + ohci_t *ohci = &gohci; + struct ohci_regs *regs = ohci->regs; + int ints; + int stat = -1; + + if ((ohci->hcca->done_head != 0) && + !(ohci_cpu_to_le32(ohci->hcca->done_head) & 0x01)) { + + ints = OHCI_INTR_WDH; + + } else if ((ints = readl (®s->intrstatus)) == ~(u32)0) { + ohci->disabled++; + err ("%s device removed!", ohci->slot_name); + return -1; + + } else if ((ints &= readl (®s->intrenable)) == 0) { + dbg("hc_interrupt: returning..\n"); + return 0xff; + } + + /* dbg("Interrupt: %x frame: %x", ints, le16_to_cpu (ohci->hcca->frame_no)); */ + + if (ints & OHCI_INTR_RHSC) { + got_rhsc = 1; + stat = 0xff; + } + + if (ints & OHCI_INTR_UE) { + ohci->disabled++; + err ("OHCI Unrecoverable Error, controller usb-%s disabled", + ohci->slot_name); + /* e.g. due to PCI Master/Target Abort */ + +#ifdef DEBUG + ohci_dump (ohci, 1); +#endif + /* FIXME: be optimistic, hope that bug won't repeat often. */ + /* Make some non-interrupt context restart the controller. */ + /* Count and limit the retries though; either hardware or */ + /* software errors can go forever... */ + hc_reset (ohci); + return -1; + } + + if (ints & OHCI_INTR_WDH) { + writel (OHCI_INTR_WDH, ®s->intrdisable); + stat = dl_done_list (&gohci, dl_reverse_done_list (&gohci)); + writel (OHCI_INTR_WDH, ®s->intrenable); + } + + if (ints & OHCI_INTR_SO) { + dbg("USB Schedule overrun\n"); + writel (OHCI_INTR_SO, ®s->intrenable); + stat = -1; + } + + /* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */ + if (ints & OHCI_INTR_SF) { + unsigned int frame = ohci_cpu_to_le16 (ohci->hcca->frame_no) & 1; + wait_ms(1); + writel (OHCI_INTR_SF, ®s->intrdisable); + if (ohci->ed_rm_list[frame] != NULL) + writel (OHCI_INTR_SF, ®s->intrenable); + stat = 0xff; + } + + writel (ints, ®s->intrstatus); + return stat; +} + +/*-------------------------------------------------------------------------*/ + +/*-------------------------------------------------------------------------*/ + +/* De-allocate all resources.. */ + +static void hc_release_ohci (ohci_t *ohci) +{ + dbg ("USB HC release ohci usb-%s", ohci->slot_name); + + if (!ohci->disabled) + hc_reset (ohci); +} + +/*-------------------------------------------------------------------------*/ + +/* + * low level initalisation routine, called from usb.c + */ +static char ohci_inited = 0; + +int usb_lowlevel_init(void) +{ + + /* Set the USB Clock */ + *(vu_long *)MPC5XXX_CDM_48_FDC = CONFIG_USB_CLOCK; + +#ifdef CONFIG_PSC3_USB /* USB is using the alternate configuration */ + /* remove all PSC3 USB bits first before ORing in ours */ + *(vu_long *)MPC5XXX_GPS_PORT_CONFIG &= ~0x00804f00; +#else + /* remove all USB bits first before ORing in ours */ + *(vu_long *)MPC5XXX_GPS_PORT_CONFIG &= ~0x00807000; +#endif + /* Activate USB port */ + *(vu_long *)MPC5XXX_GPS_PORT_CONFIG |= CONFIG_USB_CONFIG; + + memset (&gohci, 0, sizeof (ohci_t)); + memset (&urb_priv, 0, sizeof (urb_priv_t)); + + /* align the storage */ + if ((__u32)&ghcca[0] & 0xff) { + err("HCCA not aligned!!"); + return -1; + } + phcca = &ghcca[0]; + info("aligned ghcca %p", phcca); + memset(&ohci_dev, 0, sizeof(struct ohci_device)); + if ((__u32)&ohci_dev.ed[0] & 0x7) { + err("EDs not aligned!!"); + return -1; + } + memset(gtd, 0, sizeof(td_t) * (NUM_TD + 1)); + if ((__u32)gtd & 0x7) { + err("TDs not aligned!!"); + return -1; + } + ptd = gtd; + gohci.hcca = phcca; + memset (phcca, 0, sizeof (struct ohci_hcca)); + + gohci.disabled = 1; + gohci.sleeping = 0; + gohci.irq = -1; + gohci.regs = (struct ohci_regs *)MPC5XXX_USB; + + gohci.flags = 0; + gohci.slot_name = "mpc5200"; + + if (hc_reset (&gohci) < 0) { + hc_release_ohci (&gohci); + return -1; + } + + if (hc_start (&gohci) < 0) { + err ("can't start usb-%s", gohci.slot_name); + hc_release_ohci (&gohci); + return -1; + } + +#ifdef DEBUG + ohci_dump (&gohci, 1); +#endif + ohci_inited = 1; + urb_finished = 1; + + return 0; +} + +int usb_lowlevel_stop(void) +{ + /* this gets called really early - before the controller has */ + /* even been initialized! */ + if (!ohci_inited) + return 0; + /* TODO release any interrupts, etc. */ + /* call hc_release_ohci() here ? */ + hc_reset (&gohci); + return 0; +} + +#endif /* CONFIG_USB_OHCI */ diff --git a/arch/ppc/cpu/mpc5xxx/usb_ohci.h b/arch/ppc/cpu/mpc5xxx/usb_ohci.h new file mode 100644 index 0000000..629b529 --- /dev/null +++ b/arch/ppc/cpu/mpc5xxx/usb_ohci.h @@ -0,0 +1,418 @@ +/* + * URB OHCI HCD (Host Controller Driver) for USB. + * + * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> + * (C) Copyright 2000-2001 David Brownell <dbrownell@users.sourceforge.net> + * + * usb-ohci.h + */ + + +static int cc_to_error[16] = { + +/* mapping of the OHCI CC status to error codes */ + /* No Error */ 0, + /* CRC Error */ USB_ST_CRC_ERR, + /* Bit Stuff */ USB_ST_BIT_ERR, + /* Data Togg */ USB_ST_CRC_ERR, + /* Stall */ USB_ST_STALLED, + /* DevNotResp */ -1, + /* PIDCheck */ USB_ST_BIT_ERR, + /* UnExpPID */ USB_ST_BIT_ERR, + /* DataOver */ USB_ST_BUF_ERR, + /* DataUnder */ USB_ST_BUF_ERR, + /* reservd */ -1, + /* reservd */ -1, + /* BufferOver */ USB_ST_BUF_ERR, + /* BuffUnder */ USB_ST_BUF_ERR, + /* Not Access */ -1, + /* Not Access */ -1 +}; + +/* ED States */ + +#define ED_NEW 0x00 +#define ED_UNLINK 0x01 +#define ED_OPER 0x02 +#define ED_DEL 0x04 +#define ED_URB_DEL 0x08 + +/* usb_ohci_ed */ +struct ed { + __u32 hwINFO; + __u32 hwTailP; + __u32 hwHeadP; + __u32 hwNextED; + + struct ed *ed_prev; + __u8 int_period; + __u8 int_branch; + __u8 int_load; + __u8 int_interval; + __u8 state; + __u8 type; + __u16 last_iso; + struct ed *ed_rm_list; + + struct usb_device *usb_dev; + __u32 unused[3]; +} __attribute__((aligned(16))); +typedef struct ed ed_t; + + +/* TD info field */ +#define TD_CC 0xf0000000 +#define TD_CC_GET(td_p) ((td_p >>28) & 0x0f) +#define TD_CC_SET(td_p, cc) (td_p) = ((td_p) & 0x0fffffff) | (((cc) & 0x0f) << 28) +#define TD_EC 0x0C000000 +#define TD_T 0x03000000 +#define TD_T_DATA0 0x02000000 +#define TD_T_DATA1 0x03000000 +#define TD_T_TOGGLE 0x00000000 +#define TD_R 0x00040000 +#define TD_DI 0x00E00000 +#define TD_DI_SET(X) (((X) & 0x07)<< 21) +#define TD_DP 0x00180000 +#define TD_DP_SETUP 0x00000000 +#define TD_DP_IN 0x00100000 +#define TD_DP_OUT 0x00080000 + +#define TD_ISO 0x00010000 +#define TD_DEL 0x00020000 + +/* CC Codes */ +#define TD_CC_NOERROR 0x00 +#define TD_CC_CRC 0x01 +#define TD_CC_BITSTUFFING 0x02 +#define TD_CC_DATATOGGLEM 0x03 +#define TD_CC_STALL 0x04 +#define TD_DEVNOTRESP 0x05 +#define TD_PIDCHECKFAIL 0x06 +#define TD_UNEXPECTEDPID 0x07 +#define TD_DATAOVERRUN 0x08 +#define TD_DATAUNDERRUN 0x09 +#define TD_BUFFEROVERRUN 0x0C +#define TD_BUFFERUNDERRUN 0x0D +#define TD_NOTACCESSED 0x0F + + +#define MAXPSW 1 + +struct td { + __u32 hwINFO; + __u32 hwCBP; /* Current Buffer Pointer */ + __u32 hwNextTD; /* Next TD Pointer */ + __u32 hwBE; /* Memory Buffer End Pointer */ + + __u8 unused; + __u8 index; + struct ed *ed; + struct td *next_dl_td; + struct usb_device *usb_dev; + int transfer_len; + __u32 data; + + __u32 unused2[2]; +} __attribute__((aligned(32))); +typedef struct td td_t; + +#define OHCI_ED_SKIP (1 << 14) + +/* + * The HCCA (Host Controller Communications Area) is a 256 byte + * structure defined in the OHCI spec. that the host controller is + * told the base address of. It must be 256-byte aligned. + */ + +#define NUM_INTS 32 /* part of the OHCI standard */ +struct ohci_hcca { + __u32 int_table[NUM_INTS]; /* Interrupt ED table */ + __u16 pad1; /* set to 0 on each frame_no change */ + __u16 frame_no; /* current frame number */ + __u32 done_head; /* info returned for an interrupt */ + u8 reserved_for_hc[116]; +} __attribute__((aligned(256))); + + +/* + * Maximum number of root hub ports. + */ +#define MAX_ROOT_PORTS 15 /* maximum OHCI root hub ports */ + +/* + * This is the structure of the OHCI controller's memory mapped I/O + * region. This is Memory Mapped I/O. You must use the readl() and + * writel() macros defined in asm/io.h to access these!! + */ +struct ohci_regs { + /* control and status registers */ + __u32 revision; + __u32 control; + __u32 cmdstatus; + __u32 intrstatus; + __u32 intrenable; + __u32 intrdisable; + /* memory pointers */ + __u32 hcca; + __u32 ed_periodcurrent; + __u32 ed_controlhead; + __u32 ed_controlcurrent; + __u32 ed_bulkhead; + __u32 ed_bulkcurrent; + __u32 donehead; + /* frame counters */ + __u32 fminterval; + __u32 fmremaining; + __u32 fmnumber; + __u32 periodicstart; + __u32 lsthresh; + /* Root hub ports */ + struct ohci_roothub_regs { + __u32 a; + __u32 b; + __u32 status; + __u32 portstatus[MAX_ROOT_PORTS]; + } roothub; +} __attribute__((aligned(32))); + + +/* OHCI CONTROL AND STATUS REGISTER MASKS */ + +/* + * HcControl (control) register masks + */ +#define OHCI_CTRL_CBSR (3 << 0) /* control/bulk service ratio */ +#define OHCI_CTRL_PLE (1 << 2) /* periodic list enable */ +#define OHCI_CTRL_IE (1 << 3) /* isochronous enable */ +#define OHCI_CTRL_CLE (1 << 4) /* control list enable */ +#define OHCI_CTRL_BLE (1 << 5) /* bulk list enable */ +#define OHCI_CTRL_HCFS (3 << 6) /* host controller functional state */ +#define OHCI_CTRL_IR (1 << 8) /* interrupt routing */ +#define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */ +#define OHCI_CTRL_RWE (1 << 10) /* remote wakeup enable */ + +/* pre-shifted values for HCFS */ +# define OHCI_USB_RESET (0 << 6) +# define OHCI_USB_RESUME (1 << 6) +# define OHCI_USB_OPER (2 << 6) +# define OHCI_USB_SUSPEND (3 << 6) + +/* + * HcCommandStatus (cmdstatus) register masks + */ +#define OHCI_HCR (1 << 0) /* host controller reset */ +#define OHCI_CLF (1 << 1) /* control list filled */ +#define OHCI_BLF (1 << 2) /* bulk list filled */ +#define OHCI_OCR (1 << 3) /* ownership change request */ +#define OHCI_SOC (3 << 16) /* scheduling overrun count */ + +/* + * masks used with interrupt registers: + * HcInterruptStatus (intrstatus) + * HcInterruptEnable (intrenable) + * HcInterruptDisable (intrdisable) + */ +#define OHCI_INTR_SO (1 << 0) /* scheduling overrun */ +#define OHCI_INTR_WDH (1 << 1) /* writeback of done_head */ +#define OHCI_INTR_SF (1 << 2) /* start frame */ +#define OHCI_INTR_RD (1 << 3) /* resume detect */ +#define OHCI_INTR_UE (1 << 4) /* unrecoverable error */ +#define OHCI_INTR_FNO (1 << 5) /* frame number overflow */ +#define OHCI_INTR_RHSC (1 << 6) /* root hub status change */ +#define OHCI_INTR_OC (1 << 30) /* ownership change */ +#define OHCI_INTR_MIE (1 << 31) /* master interrupt enable */ + + +/* Virtual Root HUB */ +struct virt_root_hub { + int devnum; /* Address of Root Hub endpoint */ + void *dev; /* was urb */ + void *int_addr; + int send; + int interval; +}; + +/* USB HUB CONSTANTS (not OHCI-specific; see hub.h) */ + +/* destination of request */ +#define RH_INTERFACE 0x01 +#define RH_ENDPOINT 0x02 +#define RH_OTHER 0x03 + +#define RH_CLASS 0x20 +#define RH_VENDOR 0x40 + +/* Requests: bRequest << 8 | bmRequestType */ +#define RH_GET_STATUS 0x0080 +#define RH_CLEAR_FEATURE 0x0100 +#define RH_SET_FEATURE 0x0300 +#define RH_SET_ADDRESS 0x0500 +#define RH_GET_DESCRIPTOR 0x0680 +#define RH_SET_DESCRIPTOR 0x0700 +#define RH_GET_CONFIGURATION 0x0880 +#define RH_SET_CONFIGURATION 0x0900 +#define RH_GET_STATE 0x0280 +#define RH_GET_INTERFACE 0x0A80 +#define RH_SET_INTERFACE 0x0B00 +#define RH_SYNC_FRAME 0x0C80 +/* Our Vendor Specific Request */ +#define RH_SET_EP 0x2000 + + +/* Hub port features */ +#define RH_PORT_CONNECTION 0x00 +#define RH_PORT_ENABLE 0x01 +#define RH_PORT_SUSPEND 0x02 +#define RH_PORT_OVER_CURRENT 0x03 +#define RH_PORT_RESET 0x04 +#define RH_PORT_POWER 0x08 +#define RH_PORT_LOW_SPEED 0x09 + +#define RH_C_PORT_CONNECTION 0x10 +#define RH_C_PORT_ENABLE 0x11 +#define RH_C_PORT_SUSPEND 0x12 +#define RH_C_PORT_OVER_CURRENT 0x13 +#define RH_C_PORT_RESET 0x14 + +/* Hub features */ +#define RH_C_HUB_LOCAL_POWER 0x00 +#define RH_C_HUB_OVER_CURRENT 0x01 + +#define RH_DEVICE_REMOTE_WAKEUP 0x00 +#define RH_ENDPOINT_STALL 0x01 + +#define RH_ACK 0x01 +#define RH_REQ_ERR -1 +#define RH_NACK 0x00 + + +/* OHCI ROOT HUB REGISTER MASKS */ + +/* roothub.portstatus [i] bits */ +#define RH_PS_CCS 0x00000001 /* current connect status */ +#define RH_PS_PES 0x00000002 /* port enable status*/ +#define RH_PS_PSS 0x00000004 /* port suspend status */ +#define RH_PS_POCI 0x00000008 /* port over current indicator */ +#define RH_PS_PRS 0x00000010 /* port reset status */ +#define RH_PS_PPS 0x00000100 /* port power status */ +#define RH_PS_LSDA 0x00000200 /* low speed device attached */ +#define RH_PS_CSC 0x00010000 /* connect status change */ +#define RH_PS_PESC 0x00020000 /* port enable status change */ +#define RH_PS_PSSC 0x00040000 /* port suspend status change */ +#define RH_PS_OCIC 0x00080000 /* over current indicator change */ +#define RH_PS_PRSC 0x00100000 /* port reset status change */ + +/* roothub.status bits */ +#define RH_HS_LPS 0x00000001 /* local power status */ +#define RH_HS_OCI 0x00000002 /* over current indicator */ +#define RH_HS_DRWE 0x00008000 /* device remote wakeup enable */ +#define RH_HS_LPSC 0x00010000 /* local power status change */ +#define RH_HS_OCIC 0x00020000 /* over current indicator change */ +#define RH_HS_CRWE 0x80000000 /* clear remote wakeup enable */ + +/* roothub.b masks */ +#define RH_B_DR 0x0000ffff /* device removable flags */ +#define RH_B_PPCM 0xffff0000 /* port power control mask */ + +/* roothub.a masks */ +#define RH_A_NDP (0xff << 0) /* number of downstream ports */ +#define RH_A_PSM (1 << 8) /* power switching mode */ +#define RH_A_NPS (1 << 9) /* no power switching */ +#define RH_A_DT (1 << 10) /* device type (mbz) */ +#define RH_A_OCPM (1 << 11) /* over current protection mode */ +#define RH_A_NOCP (1 << 12) /* no over current protection */ +#define RH_A_POTPGT (0xff << 24) /* power on to power good time */ + +/* urb */ +#define N_URB_TD 48 +typedef struct +{ + ed_t *ed; + __u16 length; /* number of tds associated with this request */ + __u16 td_cnt; /* number of tds already serviced */ + int state; + unsigned long pipe; + int actual_length; + td_t *td[N_URB_TD]; /* list pointer to all corresponding TDs associated with this request */ +} urb_priv_t; +#define URB_DEL 1 + +/* + * This is the full ohci controller description + * + * Note how the "proper" USB information is just + * a subset of what the full implementation needs. (Linus) + */ + + +typedef struct ohci { + struct ohci_hcca *hcca; /* hcca */ + /*dma_addr_t hcca_dma;*/ + + int irq; + int disabled; /* e.g. got a UE, we're hung */ + int sleeping; + unsigned long flags; /* for HC bugs */ + + struct ohci_regs *regs; /* OHCI controller's memory */ + + ed_t *ed_rm_list[2]; /* lists of all endpoints to be removed */ + ed_t *ed_bulktail; /* last endpoint of bulk list */ + ed_t *ed_controltail; /* last endpoint of control list */ + int intrstatus; + __u32 hc_control; /* copy of the hc control reg */ + struct usb_device *dev[32]; + struct virt_root_hub rh; + + const char *slot_name; +} ohci_t; + +#define NUM_EDS 8 /* num of preallocated endpoint descriptors */ + +struct ohci_device { + ed_t ed[NUM_EDS]; + int ed_cnt; +}; + +/* hcd */ +/* endpoint */ +static int ep_link(ohci_t * ohci, ed_t * ed); +static int ep_unlink(ohci_t * ohci, ed_t * ed); +static ed_t * ep_add_ed(struct usb_device * usb_dev, unsigned long pipe); + +/*-------------------------------------------------------------------------*/ + +/* we need more TDs than EDs */ +#define NUM_TD 64 + +/* +1 so we can align the storage */ +td_t gtd[NUM_TD+1]; +/* pointers to aligned storage */ +td_t *ptd; + +/* TDs ... */ +static inline struct td * +td_alloc (struct usb_device *usb_dev) +{ + int i; + struct td *td; + + td = NULL; + for (i = 0; i < NUM_TD; i++) + { + if (ptd[i].usb_dev == NULL) + { + td = &ptd[i]; + td->usb_dev = usb_dev; + break; + } + } + + return td; +} + +static inline void +ed_free (struct ed *ed) +{ + ed->usb_dev = NULL; +} diff --git a/arch/ppc/cpu/mpc8220/Makefile b/arch/ppc/cpu/mpc8220/Makefile new file mode 100644 index 0000000..b4fad28 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/Makefile @@ -0,0 +1,50 @@ +# +# (C) Copyright 2003-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).a + +START = start.o +SOBJS = io.o fec_dma_tasks.o +COBJS = cpu.o cpu_init.o dramSetup.o fec.o i2c.o \ + interrupts.o loadtask.o speed.o \ + traps.o uart.o pci.o + +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/ppc/cpu/mpc8220/config.mk b/arch/ppc/cpu/mpc8220/config.mk new file mode 100644 index 0000000..e2ebf38 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/config.mk @@ -0,0 +1,30 @@ +# +# (C) Copyright 2003 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +PLATFORM_RELFLAGS += -fPIC -meabi + +PLATFORM_CPPFLAGS += -DCONFIG_MPC8220 -ffixed-r2 \ + -mstring -mcpu=603e -mmultiple + +# Use default linker script. Board port can override in board/*/config.mk +LDSCRIPT := $(SRCTREE)/arch/ppc/cpu/mpc8220/u-boot.lds diff --git a/arch/ppc/cpu/mpc8220/cpu.c b/arch/ppc/cpu/mpc8220/cpu.c new file mode 100644 index 0000000..563cfe0 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/cpu.c @@ -0,0 +1,104 @@ +/* + * (C) Copyright 2000-2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * CPU specific code for the MPC8220 CPUs + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <mpc8220.h> +#include <netdev.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +int checkcpu (void) +{ + ulong clock = gd->cpu_clk; + char buf[32]; + + puts ("CPU: "); + + printf (CPU_ID_STR); + + printf (" (JTAG ID %08lx)", *(vu_long *) (CONFIG_SYS_MBAR + 0x50)); + + printf (" at %s MHz\n", strmhz (buf, clock)); + + return 0; +} + +/* ------------------------------------------------------------------------- */ + +int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + volatile gptmr8220_t *gptmr = (volatile gptmr8220_t *) MMAP_GPTMR; + ulong msr; + + /* Interrupts and MMU off */ + __asm__ __volatile__ ("mfmsr %0":"=r" (msr):); + + msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR); + __asm__ __volatile__ ("mtmsr %0"::"r" (msr)); + + /* Charge the watchdog timer */ + gptmr->Prescl = 10; + gptmr->Count = 1; + + gptmr->Mode = GPT_TMS_SGPIO; + + gptmr->Control = GPT_CTRL_WDEN | GPT_CTRL_CE; + + return 1; +} + +/* ------------------------------------------------------------------------- */ + +/* + * Get timebase clock frequency (like cpu_clk in Hz) + * + */ +unsigned long get_tbclk (void) +{ + ulong tbclk; + + tbclk = (gd->bus_clk + 3L) / 4L; + + return (tbclk); +} + +/* ------------------------------------------------------------------------- */ + +/* + * Initializes on-chip ethernet controllers. + * to override, implement board_eth_init() + */ +int cpu_eth_init(bd_t *bis) +{ +#if defined(CONFIG_MPC8220_FEC) + mpc8220_fec_initialize(bis); +#endif + return 0; +} diff --git a/arch/ppc/cpu/mpc8220/cpu_init.c b/arch/ppc/cpu/mpc8220/cpu_init.c new file mode 100644 index 0000000..8f52c7d --- /dev/null +++ b/arch/ppc/cpu/mpc8220/cpu_init.c @@ -0,0 +1,136 @@ +/* + * (C) Copyright 2000-2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc8220.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Breath some life into the CPU... + * + * Set up the memory map, + * initialize a bunch of registers. + */ +void cpu_init_f (void) +{ + volatile flexbus8220_t *flexbus = (volatile flexbus8220_t *) MMAP_FB; + volatile pcfg8220_t *portcfg = (volatile pcfg8220_t *) MMAP_PCFG; + volatile xlbarb8220_t *xlbarb = (volatile xlbarb8220_t *) MMAP_XLBARB; + + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); + + /* Clear initial global data */ + memset ((void *) gd, 0, sizeof (gd_t)); + + /* Clear all port configuration */ + portcfg->pcfg0 = 0; + portcfg->pcfg1 = 0; + portcfg->pcfg2 = 0; + portcfg->pcfg3 = 0; + portcfg->pcfg2 = CONFIG_SYS_GP1_PORT2_CONFIG; + portcfg->pcfg3 = CONFIG_SYS_PCI_PORT3_CONFIG | CONFIG_SYS_GP2_PORT3_CONFIG; + + /* + * Flexbus Controller: configure chip selects and enable them + */ +#if defined (CONFIG_SYS_CS0_BASE) + flexbus->csar0 = CONFIG_SYS_CS0_BASE; + +/* Sorcery-C can hang-up after CTRL reg initialization */ +#if defined (CONFIG_SYS_CS0_CTRL) + flexbus->cscr0 = CONFIG_SYS_CS0_CTRL; +#endif + flexbus->csmr0 = ((CONFIG_SYS_CS0_MASK - 1) & 0xffff0000) | 1; + __asm__ volatile ("sync"); +#endif +#if defined (CONFIG_SYS_CS1_BASE) + flexbus->csar1 = CONFIG_SYS_CS1_BASE; + flexbus->cscr1 = CONFIG_SYS_CS1_CTRL; + flexbus->csmr1 = ((CONFIG_SYS_CS1_MASK - 1) & 0xffff0000) | 1; + __asm__ volatile ("sync"); +#endif +#if defined (CONFIG_SYS_CS2_BASE) + flexbus->csar2 = CONFIG_SYS_CS2_BASE; + flexbus->cscr2 = CONFIG_SYS_CS2_CTRL; + flexbus->csmr2 = ((CONFIG_SYS_CS2_MASK - 1) & 0xffff0000) | 1; + portcfg->pcfg3 |= CONFIG_SYS_CS2_PORT3_CONFIG; + __asm__ volatile ("sync"); +#endif +#if defined (CONFIG_SYS_CS3_BASE) + flexbus->csar3 = CONFIG_SYS_CS3_BASE; + flexbus->cscr3 = CONFIG_SYS_CS3_CTRL; + flexbus->csmr3 = ((CONFIG_SYS_CS3_MASK - 1) & 0xffff0000) | 1; + portcfg->pcfg3 |= CONFIG_SYS_CS3_PORT3_CONFIG; + __asm__ volatile ("sync"); +#endif +#if defined (CONFIG_SYS_CS4_BASE) + flexbus->csar4 = CONFIG_SYS_CS4_BASE; + flexbus->cscr4 = CONFIG_SYS_CS4_CTRL; + flexbus->csmr4 = ((CONFIG_SYS_CS4_MASK - 1) & 0xffff0000) | 1; + portcfg->pcfg3 |= CONFIG_SYS_CS4_PORT3_CONFIG; + __asm__ volatile ("sync"); +#endif +#if defined (CONFIG_SYS_CS5_BASE) + flexbus->csar5 = CONFIG_SYS_CS5_BASE; + flexbus->cscr5 = CONFIG_SYS_CS5_CTRL; + flexbus->csmr5 = ((CONFIG_SYS_CS5_MASK - 1) & 0xffff0000) | 1; + portcfg->pcfg3 |= CONFIG_SYS_CS5_PORT3_CONFIG; + __asm__ volatile ("sync"); +#endif + + /* This section of the code cannot place in cpu_init_r(), + it will cause the system to hang */ + /* enable timebase */ + xlbarb->addrTenTimeOut = 0x1000; + xlbarb->dataTenTimeOut = 0x1000; + xlbarb->busActTimeOut = 0x2000; + + xlbarb->config = 0x00002000; + + /* Master Priority Enable */ + xlbarb->mastPriority = 0; + xlbarb->mastPriEn = 0xff; +} + +/* + * initialize higher level parts of CPU like time base and timers + */ +int cpu_init_r (void) +{ + /* this may belongs to disable interrupt section */ + /* mask all interrupts */ + *(vu_long *) 0xf0000700 = 0xfffffc00; + *(vu_long *) 0xf0000714 |= 0x0001ffff; + *(vu_long *) 0xf0000710 &= ~0x00000f00; + + /* route critical ints to normal ints */ + *(vu_long *) 0xf0000710 |= 0x00000001; + +#if defined(CONFIG_CMD_NET) && defined(CONFIG_MPC8220_FEC) + /* load FEC microcode */ + loadtask (0, 2); +#endif + return (0); +} diff --git a/arch/ppc/cpu/mpc8220/dma.h b/arch/ppc/cpu/mpc8220/dma.h new file mode 100644 index 0000000..d06ee63 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/dma.h @@ -0,0 +1,68 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * This file is based on code + * (C) Copyright Motorola, Inc., 2000 + * + * MPC8220 dma header file + */ + +#ifndef __MPC8220_DMA_H +#define __MPC8220_DMA_H + +#include <common.h> +#include <mpc8220.h> + +/* Task number assignment */ +#define FEC_RECV_TASK_NO 0 +#define FEC_XMIT_TASK_NO 1 + +/*--------------------------------------------------------------------- + * Stuff for Ethernet Tx/Rx tasks + *--------------------------------------------------------------------- + */ + +/* Layout of Ethernet controller Parameter SRAM area: + * ---------------------------------------------------------------- + * 0x00: TBD_BASE, base address of TX BD ring + * 0x04: TBD_NEXT, address of next TX BD to be processed + * 0x08: RBD_BASE, base address of RX BD ring + * 0x0C: RBD_NEXT, address of next RX BD to be processed + * --------------------------------------------------------------- + * ALL PARAMETERS ARE ALL LONGWORDS (FOUR BYTES EACH). + */ + +/* base address of SRAM area to store parameters used by Ethernet tasks */ +#define FEC_PARAM_BASE (MMAP_SRAM + 0x5b00) + +/* base address of SRAM area for buffer descriptors */ +#define FEC_BD_BASE (MMAP_SRAM + 0x5b20) + +/*--------------------------------------------------------------------- + * common shortcuts used by driver C code + *--------------------------------------------------------------------- + */ + +/* Disable SmartDMA task */ +#define DMA_TASK_DISABLE(tasknum) \ +{ \ + volatile ushort *tcr = (ushort *)(MMAP_DMA + 0x0000001c + 2 * tasknum); \ + *tcr = (*tcr) & (~0x8000); \ +} + +/* Enable SmartDMA task */ +#define DMA_TASK_ENABLE(tasknum) \ +{ \ + volatile ushort *tcr = (ushort *) (MMAP_DMA + 0x0000001c + 2 * tasknum);\ + *tcr = (*tcr) | 0x8000; \ +} + +/* Clear interrupt pending bits */ +#define DMA_CLEAR_IEVENT(tasknum) \ +{ \ + struct mpc8220_dma *dma = (struct mpc8220_dma *)MMAP_DMA; \ + dma->IntPend = (1 << tasknum); \ +} + +#endif /* __MPC8220_DMA_H */ diff --git a/arch/ppc/cpu/mpc8220/dramSetup.c b/arch/ppc/cpu/mpc8220/dramSetup.c new file mode 100644 index 0000000..52cf133 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/dramSetup.c @@ -0,0 +1,752 @@ +/* + * (C) Copyright 2004, Freescale, Inc + * TsiChung Liew, Tsi-Chung.Liew@freescale.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* +DESCRIPTION +Read Dram spd and base on its information to calculate the memory size, +characteristics to initialize the dram on MPC8220 +*/ + +#include <common.h> +#include <mpc8220.h> +#include "i2cCore.h" +#include "dramSetup.h" + +DECLARE_GLOBAL_DATA_PTR; + +#define SPD_SIZE CONFIG_SYS_SDRAM_SPD_SIZE +#define DRAM_SPD (CONFIG_SYS_SDRAM_SPD_I2C_ADDR)<<1 /* on Board SPD eeprom */ +#define TOTAL_BANK CONFIG_SYS_SDRAM_TOTAL_BANKS + +int spd_status (volatile i2c8220_t * pi2c, u8 sta_bit, u8 truefalse) +{ + int i; + + for (i = 0; i < I2C_POLL_COUNT; i++) { + if ((pi2c->sr & sta_bit) == (truefalse ? sta_bit : 0)) + return (OK); + } + + return (ERROR); +} + +int spd_clear (volatile i2c8220_t * pi2c) +{ + pi2c->adr = 0; + pi2c->fdr = 0; + pi2c->cr = 0; + pi2c->sr = 0; + + return (OK); +} + +int spd_stop (volatile i2c8220_t * pi2c) +{ + pi2c->cr &= ~I2C_CTL_STA; /* Generate stop signal */ + if (spd_status (pi2c, I2C_STA_BB, 0) != OK) + return ERROR; + + return (OK); +} + +int spd_readbyte (volatile i2c8220_t * pi2c, u8 * readb, int *index) +{ + pi2c->sr &= ~I2C_STA_IF; /* Clear Interrupt Bit */ + *readb = pi2c->dr; /* Read a byte */ + + /* + Set I2C_CTRL_TXAK will cause Transfer pending and + set I2C_CTRL_STA will cause Interrupt pending + */ + if (*index != 2) { + if (spd_status (pi2c, I2C_STA_CF, 1) != OK) /* Transfer not complete? */ + return ERROR; + } + + if (*index != 1) { + if (spd_status (pi2c, I2C_STA_IF, 1) != OK) + return ERROR; + } + + return (OK); +} + +int readSpdData (u8 * spdData) +{ + volatile i2c8220_t *pi2cReg; + volatile pcfg8220_t *pcfg; + u8 slvAdr = DRAM_SPD; + u8 Tmp; + int Length = SPD_SIZE; + int i = 0; + + /* Enable Port Configuration for SDA and SDL signals */ + pcfg = (volatile pcfg8220_t *) (MMAP_PCFG); + __asm__ ("sync"); + pcfg->pcfg3 &= ~CONFIG_SYS_I2C_PORT3_CONFIG; + __asm__ ("sync"); + + /* Points the structure to I2c mbar memory offset */ + pi2cReg = (volatile i2c8220_t *) (MMAP_I2C); + + + /* Clear FDR, ADR, SR and CR reg */ + pi2cReg->adr = 0; + pi2cReg->fdr = 0; + pi2cReg->cr = 0; + pi2cReg->sr = 0; + + /* Set for fix XLB Bus Frequency */ + switch (gd->bus_clk) { + case 60000000: + pi2cReg->fdr = 0x15; + break; + case 70000000: + pi2cReg->fdr = 0x16; + break; + case 80000000: + pi2cReg->fdr = 0x3a; + break; + case 90000000: + pi2cReg->fdr = 0x17; + break; + case 100000000: + pi2cReg->fdr = 0x3b; + break; + case 110000000: + pi2cReg->fdr = 0x18; + break; + case 120000000: + pi2cReg->fdr = 0x19; + break; + case 130000000: + pi2cReg->fdr = 0x1a; + break; + } + + pi2cReg->adr = CONFIG_SYS_I2C_SLAVE<<1; + + pi2cReg->cr = I2C_CTL_EN; /* Set Enable */ + + /* + The I2C bus should be in Idle state. If the bus is busy, + clear the STA bit in control register + */ + if (spd_status (pi2cReg, I2C_STA_BB, 0) != OK) { + if ((pi2cReg->cr & I2C_CTL_STA) == I2C_CTL_STA) + pi2cReg->cr &= ~I2C_CTL_STA; + + /* Check again if it is still busy, return error if found */ + if (spd_status (pi2cReg, I2C_STA_BB, 1) == OK) + return ERROR; + } + + pi2cReg->cr |= I2C_CTL_TX; /* Enable the I2c for TX, Ack */ + pi2cReg->cr |= I2C_CTL_STA; /* Generate start signal */ + + if (spd_status (pi2cReg, I2C_STA_BB, 1) != OK) + return ERROR; + + + /* Write slave address */ + pi2cReg->sr &= ~I2C_STA_IF; /* Clear Interrupt */ + pi2cReg->dr = slvAdr; /* Write a byte */ + + if (spd_status (pi2cReg, I2C_STA_CF, 1) != OK) { /* Transfer not complete? */ + spd_stop (pi2cReg); + return ERROR; + } + + if (spd_status (pi2cReg, I2C_STA_IF, 1) != OK) { + spd_stop (pi2cReg); + return ERROR; + } + + + /* Issue the offset to start */ + pi2cReg->sr &= ~I2C_STA_IF; /* Clear Interrupt */ + pi2cReg->dr = 0; /* Write a byte */ + + if (spd_status (pi2cReg, I2C_STA_CF, 1) != OK) { /* Transfer not complete? */ + spd_stop (pi2cReg); + return ERROR; + } + + if (spd_status (pi2cReg, I2C_STA_IF, 1) != OK) { + spd_stop (pi2cReg); + return ERROR; + } + + + /* Set repeat start */ + pi2cReg->cr |= I2C_CTL_RSTA; /* Repeat Start */ + + pi2cReg->sr &= ~I2C_STA_IF; /* Clear Interrupt */ + pi2cReg->dr = slvAdr | 1; /* Write a byte */ + + if (spd_status (pi2cReg, I2C_STA_CF, 1) != OK) { /* Transfer not complete? */ + spd_stop (pi2cReg); + return ERROR; + } + + if (spd_status (pi2cReg, I2C_STA_IF, 1) != OK) { + spd_stop (pi2cReg); + return ERROR; + } + + if (((pi2cReg->sr & 0x07) == 0x07) || (pi2cReg->sr & 0x01)) + return ERROR; + + pi2cReg->cr &= ~I2C_CTL_TX; /* Set receive mode */ + + if (((pi2cReg->sr & 0x07) == 0x07) || (pi2cReg->sr & 0x01)) + return ERROR; + + /* Dummy Read */ + if (spd_readbyte (pi2cReg, &Tmp, &i) != OK) { + spd_stop (pi2cReg); + return ERROR; + } + + i = 0; + while (Length) { + if (Length == 2) + pi2cReg->cr |= I2C_CTL_TXAK; + + if (Length == 1) + pi2cReg->cr &= ~I2C_CTL_STA; + + if (spd_readbyte (pi2cReg, spdData, &Length) != OK) { + return spd_stop (pi2cReg); + } + i++; + Length--; + spdData++; + } + + /* Stop the service */ + spd_stop (pi2cReg); + + return OK; +} + +int getBankInfo (int bank, draminfo_t * pBank) +{ + int status; + int checksum; + int count; + u8 spdData[SPD_SIZE]; + + + if (bank > 2 || pBank == 0) { + /* illegal values */ + return (-42); + } + + status = readSpdData (&spdData[0]); + if (status < 0) + return (-1); + + /* check the checksum */ + for (count = 0, checksum = 0; count < LOC_CHECKSUM; count++) + checksum += spdData[count]; + + checksum = checksum - ((checksum / 256) * 256); + + if (checksum != spdData[LOC_CHECKSUM]) + return (-2); + + /* Get the memory type */ + if (! + ((spdData[LOC_TYPE] == TYPE_DDR) + || (spdData[LOC_TYPE] == TYPE_SDR))) + /* not one of the types we support */ + return (-3); + + pBank->type = spdData[LOC_TYPE]; + + /* Set logical banks */ + pBank->banks = spdData[LOC_LOGICAL_BANKS]; + + /* Check that we have enough physical banks to cover the bank we are + * figuring out. Odd-numbered banks correspond to the second bank + * on the device. + */ + if (bank & 1) { + /* Second bank of a "device" */ + if (spdData[LOC_PHYS_BANKS] < 2) + /* this bank doesn't exist on the "device" */ + return (-4); + + if (spdData[LOC_ROWS] & 0xf0) + /* Two asymmetric banks */ + pBank->rows = spdData[LOC_ROWS] >> 4; + else + pBank->rows = spdData[LOC_ROWS]; + + if (spdData[LOC_COLS] & 0xf0) + /* Two asymmetric banks */ + pBank->cols = spdData[LOC_COLS] >> 4; + else + pBank->cols = spdData[LOC_COLS]; + } else { + /* First bank of a "device" */ + pBank->rows = spdData[LOC_ROWS]; + pBank->cols = spdData[LOC_COLS]; + } + + pBank->width = spdData[LOC_WIDTH_HIGH] << 8 | spdData[LOC_WIDTH_LOW]; + pBank->bursts = spdData[LOC_BURSTS]; + pBank->CAS = spdData[LOC_CAS]; + pBank->CS = spdData[LOC_CS]; + pBank->WE = spdData[LOC_WE]; + pBank->Trp = spdData[LOC_Trp]; + pBank->Trcd = spdData[LOC_Trcd]; + pBank->buffered = spdData[LOC_Buffered] & 1; + pBank->refresh = spdData[LOC_REFRESH]; + + return (0); +} + + +/* checkMuxSetting -- given a row/column device geometry, return a mask + * of the valid DRAM controller addr_mux settings for + * that geometry. + * + * Arguments: u8 rows: number of row addresses in this device + * u8 columns: number of column addresses in this device + * + * Returns: a mask of the allowed addr_mux settings for this + * geometry. Each bit in the mask represents a + * possible addr_mux settings (for example, the + * (1<<2) bit in the mask represents the 0b10 setting)/ + * + */ +u8 checkMuxSetting (u8 rows, u8 columns) +{ + muxdesc_t *pIdx, *pMux; + u8 mask; + int lrows, lcolumns; + u32 mux[4] = { 0x00080c04, 0x01080d03, 0x02080e02, 0xffffffff }; + + /* Setup MuxDescriptor in SRAM space */ + /* MUXDESC AddressRuns [] = { + { 0, 8, 12, 4 }, / setting, columns, rows, extra columns / + { 1, 8, 13, 3 }, / setting, columns, rows, extra columns / + { 2, 8, 14, 2 }, / setting, columns, rows, extra columns / + { 0xff } / list terminator / + }; */ + + pIdx = (muxdesc_t *) & mux[0]; + + /* Check rows x columns against each possible address mux setting */ + for (pMux = pIdx, mask = 0;; pMux++) { + lrows = rows; + lcolumns = columns; + + if (pMux->MuxValue == 0xff) + break; /* end of list */ + + /* For a given mux setting, since we want all the memory in a + * device to be contiguous, we want the device "use up" the + * address lines such that there are no extra column or row + * address lines on the device. + */ + + lcolumns -= pMux->Columns; + if (lcolumns < 0) + /* Not enough columns to get to the rows */ + continue; + + lrows -= pMux->Rows; + if (lrows > 0) + /* we have extra rows left -- can't do that! */ + continue; + + /* At this point, we either have to have used up all the + * rows or we have to have no columns left. + */ + + if (lcolumns != 0 && lrows != 0) + /* rows AND columns are left. Bad! */ + continue; + + lcolumns -= pMux->MoreColumns; + + if (lcolumns <= 0) + mask |= (1 << pMux->MuxValue); + } + + return (mask); +} + + +u32 dramSetup (void) +{ + draminfo_t DramInfo[TOTAL_BANK]; + draminfo_t *pDramInfo; + u32 size, temp, cfg_value, mode_value, refresh; + u8 *ptr; + u8 bursts, Trp, Trcd, type, buffered; + u8 muxmask, rows, columns; + int count, banknum; + u32 *prefresh, *pIdx; + u32 refrate[8] = { 15625, 3900, 7800, 31300, + 62500, 125000, 0xffffffff, 0xffffffff + }; + volatile sysconf8220_t *sysconf; + volatile memctl8220_t *memctl; + + sysconf = (volatile sysconf8220_t *) MMAP_MBAR; + memctl = (volatile memctl8220_t *) MMAP_MEMCTL; + + /* Set everything in the descriptions to zero */ + ptr = (u8 *) & DramInfo[0]; + for (count = 0; count < sizeof (DramInfo); count++) + *ptr++ = 0; + + for (banknum = 0; banknum < TOTAL_BANK; banknum++) + sysconf->cscfg[banknum]; + + /* Descriptions of row/column address muxing for various + * addr_mux settings. + */ + + pIdx = prefresh = (u32 *) & refrate[0]; + + /* Get all the info for all three logical banks */ + bursts = 0xff; + Trp = 0; + Trcd = 0; + type = 0; + buffered = 0xff; + refresh = 0xffffffff; + muxmask = 0xff; + + /* Two bank, CS0 and CS1 */ + for (banknum = 0, pDramInfo = &DramInfo[0]; + banknum < TOTAL_BANK; banknum++, pDramInfo++) { + pDramInfo->ordinal = banknum; /* initial sorting */ + if (getBankInfo (banknum, pDramInfo) < 0) + continue; + + /* get cumulative parameters of all three banks */ + if (type && pDramInfo->type != type) + return 0; + + type = pDramInfo->type; + rows = pDramInfo->rows; + columns = pDramInfo->cols; + + /* This chip only supports 13 DRAM memory lines, but some devices + * have 14 rows. To deal with this, ignore the 14th address line + * by limiting the number of rows (and columns) to 13. This will + * mean that for 14-row devices we will only be able to use + * half of the memory, but it's better than nothing. + */ + if (rows > 13) + rows = 13; + if (columns > 13) + columns = 13; + + pDramInfo->size = + ((1 << (rows + columns)) * pDramInfo->width); + pDramInfo->size *= pDramInfo->banks; + pDramInfo->size >>= 3; + + /* figure out which addr_mux configurations will support this device */ + muxmask &= checkMuxSetting (rows, columns); + if (muxmask == 0) + return 0; + + buffered = pDramInfo->buffered; + bursts &= pDramInfo->bursts; /* union of all bursts */ + if (pDramInfo->Trp > Trp) /* worst case (longest) Trp */ + Trp = pDramInfo->Trp; + + if (pDramInfo->Trcd > Trcd) /* worst case (longest) Trcd */ + Trcd = pDramInfo->Trcd; + + prefresh = pIdx; + /* worst case (shortest) Refresh period */ + if (refresh > prefresh[pDramInfo->refresh & 7]) + refresh = prefresh[pDramInfo->refresh & 7]; + + } /* for loop */ + + + /* We only allow a burst length of 8! */ + if (!(bursts & 8)) + bursts = 8; + + /* Sort the devices. In order to get each chip select region + * aligned properly, put the biggest device at the lowest address. + * A simple bubble sort will do the trick. + */ + for (banknum = 0, pDramInfo = &DramInfo[0]; + banknum < TOTAL_BANK; banknum++, pDramInfo++) { + int i; + + for (i = 0; i < TOTAL_BANK; i++) { + if (pDramInfo->size < DramInfo[i].size && + pDramInfo->ordinal < DramInfo[i].ordinal) { + /* If the current bank is smaller, but if the ordinal is also + * smaller, swap the ordinals + */ + u8 temp8; + + temp8 = DramInfo[i].ordinal; + DramInfo[i].ordinal = pDramInfo->ordinal; + pDramInfo->ordinal = temp8; + } + } + } + + + /* Now figure out the base address for each bank. While + * we're at it, figure out how much memory there is. + * + */ + size = 0; + for (banknum = 0; banknum < TOTAL_BANK; banknum++) { + int i; + + for (i = 0; i < TOTAL_BANK; i++) { + if (DramInfo[i].ordinal == banknum + && DramInfo[i].size != 0) { + DramInfo[i].base = size; + size += DramInfo[i].size; + } + } + } + + /* Set up the Drive Strength register */ + sysconf->sdramds = CONFIG_SYS_SDRAM_DRIVE_STRENGTH; + + /* ********************** Cfg 1 ************************* */ + + /* Set the single read to read/write/precharge delay */ + cfg_value = CFG1_SRD2RWP ((type == TYPE_DDR) ? 7 : 0xb); + + /* Set the single write to read/write/precharge delay. + * This may or may not be correct. The controller spec + * says "tWR", but "tWR" does not appear in the SPD. It + * always seems to be 15nsec for the class of device we're + * using, which turns out to be 2 clock cycles at 133MHz, + * so that's what we're going to use. + * + * HOWEVER, because of a bug in the controller, for DDR + * we need to set this to be the same as the value + * calculated for bwt2rwp. + */ + cfg_value |= CFG1_SWT2RWP ((type == TYPE_DDR) ? 7 : 2); + + /* Set the Read CAS latency. We're going to use a CL of + * 2.5 for DDR and 2 SDR. + */ + cfg_value |= CFG1_RLATENCY ((type == TYPE_DDR) ? 7 : 2); + + + /* Set the Active to Read/Write delay. This depends + * on Trcd which is reported as nanoseconds times 4. + * We want to calculate Trcd (in nanoseconds) times XLB clock (in Hz) + * which gives us a dimensionless quantity. Play games with + * the divisions so we don't run out of dynamic ranges. + */ + /* account for megaherz and the times 4 */ + temp = (Trcd * (gd->bus_clk / 1000000)) / 4; + + /* account for nanoseconds and round up, with a minimum value of 2 */ + temp = ((temp + 999) / 1000) - 1; + if (temp < 2) + temp = 2; + + cfg_value |= CFG1_ACT2WR (temp); + + /* Set the precharge to active delay. This depends + * on Trp which is reported as nanoseconds times 4. + * We want to calculate Trp (in nanoseconds) times XLB clock (in Hz) + * which gives us a dimensionless quantity. Play games with + * the divisions so we don't run out of dynamic ranges. + */ + /* account for megaherz and the times 4 */ + temp = (Trp * (gd->bus_clk / 1000000)) / 4; + + /* account for nanoseconds and round up, then subtract 1, with a + * minumum value of 1 and a maximum value of 7. + */ + temp = (((temp + 999) / 1000) - 1) & 7; + if (temp < 1) + temp = 1; + + cfg_value |= CFG1_PRE2ACT (temp); + + /* Set refresh to active delay. This depends + * on Trfc which is not reported in the SPD. + * We'll use a nominal value of 75nsec which is + * what the controller spec uses. + */ + temp = (75 * (gd->bus_clk / 1000000)); + /* account for nanoseconds and round up, then subtract 1 */ + cfg_value |= CFG1_REF2ACT (((temp + 999) / 1000) - 1); + + /* Set the write latency, using the values given in the controller spec */ + cfg_value |= CFG1_WLATENCY ((type == TYPE_DDR) ? 3 : 0); + memctl->cfg1 = cfg_value; /* cfg 1 */ + asm volatile ("sync"); + + + /* ********************** Cfg 2 ************************* */ + + /* Set the burst read to read/precharge delay */ + cfg_value = CFG2_BRD2RP ((type == TYPE_DDR) ? 5 : 8); + + /* Set the burst write to read/precharge delay. Semi-magic numbers + * based on the controller spec recommendations, assuming tWR is + * two clock cycles. + */ + cfg_value |= CFG2_BWT2RWP ((type == TYPE_DDR) ? 7 : 10); + + /* Set the Burst read to write delay. Semi-magic numbers + * based on the DRAM controller documentation. + */ + cfg_value |= CFG2_BRD2WT ((type == TYPE_DDR) ? 7 : 0xb); + + /* Set the burst length -- must be 8!! Well, 7, actually, becuase + * it's burst lenght minus 1. + */ + cfg_value |= CFG2_BURSTLEN (7); + memctl->cfg2 = cfg_value; /* cfg 2 */ + asm volatile ("sync"); + + + /* ********************** mode ************************* */ + + /* Set enable bit, CKE high/low bits, and the DDR/SDR mode bit, + * disable automatic refresh. + */ + cfg_value = CTL_MODE_ENABLE | CTL_CKE_HIGH | + ((type == TYPE_DDR) ? CTL_DDR_MODE : 0); + + /* Set the address mux based on whichever setting(s) is/are common + * to all the devices we have. If there is more than one, choose + * one arbitrarily. + */ + if (muxmask & 0x4) + cfg_value |= CTL_ADDRMUX (2); + else if (muxmask & 0x2) + cfg_value |= CTL_ADDRMUX (1); + else + cfg_value |= CTL_ADDRMUX (0); + + /* Set the refresh interval. */ + temp = ((refresh * (gd->bus_clk / 1000000)) / (1000 * 64)) - 1; + cfg_value |= CTL_REFRESH_INTERVAL (temp); + + /* Set buffered/non-buffered memory */ + if (buffered) + cfg_value |= CTL_BUFFERED; + + memctl->ctrl = cfg_value; /* ctrl */ + asm volatile ("sync"); + + if (type == TYPE_DDR) { + /* issue precharge all */ + temp = cfg_value | CTL_PRECHARGE_CMD; + memctl->ctrl = temp; /* ctrl */ + asm volatile ("sync"); + } + + + /* Set up mode value for CAS latency */ +#if (CONFIG_SYS_SDRAM_CAS_LATENCY==5) /* CL=2.5 */ + mode_value = (MODE_MODE | MODE_BURSTLEN (MODE_BURSTLEN_8) | + MODE_BT_SEQUENTIAL | MODE_CL (MODE_CL_2p5) | MODE_CMD); +#else + mode_value = (MODE_MODE | MODE_BURSTLEN (MODE_BURSTLEN_8) | + MODE_BT_SEQUENTIAL | MODE_CL (MODE_CL_2) | MODE_CMD); +#endif + asm volatile ("sync"); + + /* Write Extended Mode - enable DLL */ + if (type == TYPE_DDR) { + temp = MODE_EXTENDED | MODE_X_DLL_ENABLE | + MODE_X_DS_NORMAL | MODE_CMD; + memctl->mode = (temp >> 16); /* mode */ + asm volatile ("sync"); + + /* Write Mode - reset DLL, set CAS latency */ + temp = mode_value | MODE_OPMODE (MODE_OPMODE_RESETDLL); + memctl->mode = (temp >> 16); /* mode */ + asm volatile ("sync"); + } + + /* Program the chip selects. */ + for (banknum = 0; banknum < TOTAL_BANK; banknum++) { + if (DramInfo[banknum].size != 0) { + u32 mask; + int i; + + for (i = 0, mask = 1; i < 32; mask <<= 1, i++) { + if (DramInfo[banknum].size & mask) + break; + } + temp = (DramInfo[banknum].base & 0xfff00000) | (i - + 1); + + sysconf->cscfg[banknum] = temp; + asm volatile ("sync"); + } + } + + /* Wait for DLL lock */ + udelay (200); + + temp = cfg_value | CTL_PRECHARGE_CMD; /* issue precharge all */ + memctl->ctrl = temp; /* ctrl */ + asm volatile ("sync"); + + temp = cfg_value | CTL_REFRESH_CMD; /* issue precharge all */ + memctl->ctrl = temp; /* ctrl */ + asm volatile ("sync"); + + memctl->ctrl = temp; /* ctrl */ + asm volatile ("sync"); + + /* Write Mode - DLL normal */ + temp = mode_value | MODE_OPMODE (MODE_OPMODE_NORMAL); + memctl->mode = (temp >> 16); /* mode */ + asm volatile ("sync"); + + /* Enable refresh, enable DQS's (if DDR), and lock the control register */ + cfg_value &= ~CTL_MODE_ENABLE; /* lock register */ + cfg_value |= CTL_REFRESH_ENABLE; /* enable refresh */ + + if (type == TYPE_DDR) + cfg_value |= CTL_DQSOEN (0xf); /* enable DQS's for DDR */ + + memctl->ctrl = cfg_value; /* ctrl */ + asm volatile ("sync"); + + return size; +} diff --git a/arch/ppc/cpu/mpc8220/dramSetup.h b/arch/ppc/cpu/mpc8220/dramSetup.h new file mode 100644 index 0000000..3b64e08 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/dramSetup.h @@ -0,0 +1,108 @@ +/* + * dramSetup.h + * + * Prototypes, etc. for the Motorola MPC8220 + * embedded cpu chips + * + * 2004 (c) Freescale, Inc. + * Author: TsiChung Liew <Tsi-Chung.Liew@freescale.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#ifndef __INCdramsetuph +#define __INCdramsetuph +#ifndef __ASSEMBLY__ +/* Where various things are in the SPD */ +#define LOC_TYPE 2 +#define LOC_CHECKSUM 63 +#define LOC_PHYS_BANKS 5 +#define LOC_LOGICAL_BANKS 17 +#define LOC_ROWS 3 +#define LOC_COLS 4 +#define LOC_WIDTH_HIGH 7 +#define LOC_WIDTH_LOW 6 +#define LOC_REFRESH 12 +#define LOC_BURSTS 16 +#define LOC_CAS 18 +#define LOC_CS 19 +#define LOC_WE 20 +#define LOC_Tcyc 9 +#define LOC_Tac 10 +#define LOC_Trp 27 +#define LOC_Trrd 28 +#define LOC_Trcd 29 +#define LOC_Tras 30 +#define LOC_Buffered 21 +/* Types of memory the SPD can tell us about. + * We can actually only use SDRAM and DDR. + */ +#define TYPE_DRAM 1 /* plain old dram */ +#define TYPE_EDO 2 /* EDO dram */ +#define TYPE_Nibble 3 /* serial nibble memory */ +#define TYPE_SDR 4 /* SDRAM */ +#define TYPE_ROM 5 /* */ +#define TYPE_SGRRAM 6 /* graphics memory */ +#define TYPE_DDR 7 /* DDR sdram */ +#define SDRAMDS_MASK 0x3 /* each field is 2 bits wide */ +#define SDRAMDS_SBE_SHIFT 8 /* Clock enable drive strength */ +#define SDRAMDS_SBC_SHIFT 6 /* Clocks drive strength */ +#define SDRAMDS_SBA_SHIFT 4 /* Address drive strength */ +#define SDRAMDS_SBS_SHIFT 2 /* SDR DQS drive strength */ +#define SDRAMDS_SBD_SHIFT 0 /* Data and DQS drive strength */ +#define DRIVE_STRENGTH_HIGH 0 +#define DRIVE_STRENGTH_MED 1 +#define DRIVE_STRENGTH_LOW 2 +#define DRIVE_STRENGTH_OFF 3 + +#define OK 0 +#define ERROR -1 +/* Structure to hold information about address muxing. */ + typedef struct tagMuxDescriptor { + u8 MuxValue; + u8 Columns; + u8 Rows; + u8 MoreColumns; +} muxdesc_t; + +/* Structure to define one physical bank of + * memory. Note that dram size in bytes is + * (2^^(rows+columns)) * width * banks / 8 +*/ +typedef struct tagDramInfo { + u32 size; /* size in bytes */ + u32 base; /* base address */ + u8 ordinal; /* where in the memory map will we put this */ + u8 type; + u8 rows; + u8 cols; + u16 width; /* width of each chip in bits */ + u8 banks; /* number of chips, aka logical banks */ + u8 bursts; /* bit-encoded allowable burst length */ + u8 CAS; /* bit-encoded CAS latency values */ + u8 CS; /* bit-encoded CS latency values */ + u8 WE; /* bit-encoded WE latency values */ + u8 Trp; /* bit-encoded row precharge time */ + u8 Trcd; /* bit-encoded RAS to CAS delay */ + u8 buffered; /* buffered or not */ + u8 refresh; /* encoded refresh rate */ +} draminfo_t; + +#endif /* __ASSEMBLY__ */ + +#endif /* __INCdramsetuph */ diff --git a/arch/ppc/cpu/mpc8220/fec.c b/arch/ppc/cpu/mpc8220/fec.c new file mode 100644 index 0000000..992e0ff --- /dev/null +++ b/arch/ppc/cpu/mpc8220/fec.c @@ -0,0 +1,1000 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * This file is based on mpc4200fec.c, + * (C) Copyright Motorola, Inc., 2000 + */ + +#include <common.h> +#include <mpc8220.h> +#include <malloc.h> +#include <net.h> +#include <miiphy.h> +#include "dma.h" +#include "fec.h" + +#undef DEBUG +#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI) && \ + defined(CONFIG_MPC8220_FEC) + +#if !(defined(CONFIG_MII) || defined(CONFIG_CMD_MII)) +#error "CONFIG_MII has to be defined!" +#endif + +#ifdef DEBUG +static void tfifo_print (char *devname, mpc8220_fec_priv * fec); +static void rfifo_print (char *devname, mpc8220_fec_priv * fec); +#endif /* DEBUG */ + +#ifdef DEBUG +static u32 local_crc32 (char *string, unsigned int crc_value, int len); +#endif + +typedef struct { + u8 data[1500]; /* actual data */ + int length; /* actual length */ + int used; /* buffer in use or not */ + u8 head[16]; /* MAC header(6 + 6 + 2) + 2(aligned) */ +} NBUF; + +int fec8220_miiphy_read (char *devname, u8 phyAddr, u8 regAddr, u16 * retVal); +int fec8220_miiphy_write (char *devname, u8 phyAddr, u8 regAddr, u16 data); + +/********************************************************************/ +#ifdef DEBUG +static void mpc8220_fec_phydump (char *devname) +{ + u16 phyStatus, i; + u8 phyAddr = CONFIG_PHY_ADDR; + u8 reg_mask[] = { +#if CONFIG_PHY_TYPE == 0x79c874 /* AMD Am79C874 */ + /* regs to print: 0...7, 16...19, 21, 23, 24 */ + 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, +#else + /* regs to print: 0...8, 16...20 */ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +#endif + }; + + for (i = 0; i < 32; i++) { + if (reg_mask[i]) { + miiphy_read (devname, phyAddr, i, &phyStatus); + printf ("Mii reg %d: 0x%04x\n", i, phyStatus); + } + } +} +#endif + +/********************************************************************/ +static int mpc8220_fec_rbd_init (mpc8220_fec_priv * fec) +{ + int ix; + char *data; + static int once = 0; + + for (ix = 0; ix < FEC_RBD_NUM; ix++) { + if (!once) { + data = (char *) malloc (FEC_MAX_PKT_SIZE); + if (data == NULL) { + printf ("RBD INIT FAILED\n"); + return -1; + } + fec->rbdBase[ix].dataPointer = (u32) data; + } + fec->rbdBase[ix].status = FEC_RBD_EMPTY; + fec->rbdBase[ix].dataLength = 0; + } + once++; + + /* + * have the last RBD to close the ring + */ + fec->rbdBase[ix - 1].status |= FEC_RBD_WRAP; + fec->rbdIndex = 0; + + return 0; +} + +/********************************************************************/ +static void mpc8220_fec_tbd_init (mpc8220_fec_priv * fec) +{ + int ix; + + for (ix = 0; ix < FEC_TBD_NUM; ix++) { + fec->tbdBase[ix].status = 0; + } + + /* + * Have the last TBD to close the ring + */ + fec->tbdBase[ix - 1].status |= FEC_TBD_WRAP; + + /* + * Initialize some indices + */ + fec->tbdIndex = 0; + fec->usedTbdIndex = 0; + fec->cleanTbdNum = FEC_TBD_NUM; +} + +/********************************************************************/ +static void mpc8220_fec_rbd_clean (mpc8220_fec_priv * fec, FEC_RBD * pRbd) +{ + /* + * Reset buffer descriptor as empty + */ + if ((fec->rbdIndex) == (FEC_RBD_NUM - 1)) + pRbd->status = (FEC_RBD_WRAP | FEC_RBD_EMPTY); + else + pRbd->status = FEC_RBD_EMPTY; + + pRbd->dataLength = 0; + + /* + * Now, we have an empty RxBD, restart the SmartDMA receive task + */ + DMA_TASK_ENABLE (FEC_RECV_TASK_NO); + + /* + * Increment BD count + */ + fec->rbdIndex = (fec->rbdIndex + 1) % FEC_RBD_NUM; +} + +/********************************************************************/ +static void mpc8220_fec_tbd_scrub (mpc8220_fec_priv * fec) +{ + FEC_TBD *pUsedTbd; + +#ifdef DEBUG + printf ("tbd_scrub: fec->cleanTbdNum = %d, fec->usedTbdIndex = %d\n", + fec->cleanTbdNum, fec->usedTbdIndex); +#endif + + /* + * process all the consumed TBDs + */ + while (fec->cleanTbdNum < FEC_TBD_NUM) { + pUsedTbd = &fec->tbdBase[fec->usedTbdIndex]; + if (pUsedTbd->status & FEC_TBD_READY) { +#ifdef DEBUG + printf ("Cannot clean TBD %d, in use\n", + fec->cleanTbdNum); +#endif + return; + } + + /* + * clean this buffer descriptor + */ + if (fec->usedTbdIndex == (FEC_TBD_NUM - 1)) + pUsedTbd->status = FEC_TBD_WRAP; + else + pUsedTbd->status = 0; + + /* + * update some indeces for a correct handling of the TBD ring + */ + fec->cleanTbdNum++; + fec->usedTbdIndex = (fec->usedTbdIndex + 1) % FEC_TBD_NUM; + } +} + +/********************************************************************/ +static void mpc8220_fec_set_hwaddr (mpc8220_fec_priv * fec, char *mac) +{ + u8 currByte; /* byte for which to compute the CRC */ + int byte; /* loop - counter */ + int bit; /* loop - counter */ + u32 crc = 0xffffffff; /* initial value */ + + /* + * The algorithm used is the following: + * we loop on each of the six bytes of the provided address, + * and we compute the CRC by left-shifting the previous + * value by one position, so that each bit in the current + * byte of the address may contribute the calculation. If + * the latter and the MSB in the CRC are different, then + * the CRC value so computed is also ex-ored with the + * "polynomium generator". The current byte of the address + * is also shifted right by one bit at each iteration. + * This is because the CRC generatore in hardware is implemented + * as a shift-register with as many ex-ores as the radixes + * in the polynomium. This suggests that we represent the + * polynomiumm itself as a 32-bit constant. + */ + for (byte = 0; byte < 6; byte++) { + currByte = mac[byte]; + for (bit = 0; bit < 8; bit++) { + if ((currByte & 0x01) ^ (crc & 0x01)) { + crc >>= 1; + crc = crc ^ 0xedb88320; + } else { + crc >>= 1; + } + currByte >>= 1; + } + } + + crc = crc >> 26; + + /* + * Set individual hash table register + */ + if (crc >= 32) { + fec->eth->iaddr1 = (1 << (crc - 32)); + fec->eth->iaddr2 = 0; + } else { + fec->eth->iaddr1 = 0; + fec->eth->iaddr2 = (1 << crc); + } + + /* + * Set physical address + */ + fec->eth->paddr1 = + (mac[0] << 24) + (mac[1] << 16) + (mac[2] << 8) + mac[3]; + fec->eth->paddr2 = (mac[4] << 24) + (mac[5] << 16) + 0x8808; +} + +/********************************************************************/ +static int mpc8220_fec_init (struct eth_device *dev, bd_t * bis) +{ + mpc8220_fec_priv *fec = (mpc8220_fec_priv *) dev->priv; + struct mpc8220_dma *dma = (struct mpc8220_dma *) MMAP_DMA; + const u8 phyAddr = CONFIG_PHY_ADDR; /* Only one PHY */ + +#ifdef DEBUG + printf ("mpc8220_fec_init... Begin\n"); +#endif + + /* + * Initialize RxBD/TxBD rings + */ + mpc8220_fec_rbd_init (fec); + mpc8220_fec_tbd_init (fec); + + /* + * Set up Pin Muxing for FEC 1 + */ + *(vu_long *) MMAP_PCFG = 0; + *(vu_long *) (MMAP_PCFG + 4) = 0; + /* + * Clear FEC-Lite interrupt event register(IEVENT) + */ + fec->eth->ievent = 0xffffffff; + + /* + * Set interrupt mask register + */ + fec->eth->imask = 0x00000000; + + /* + * Set FEC-Lite receive control register(R_CNTRL): + */ + if (fec->xcv_type == SEVENWIRE) { + /* + * Frame length=1518; 7-wire mode + */ + fec->eth->r_cntrl = 0x05ee0020; /*0x05ee0000;FIXME */ + } else { + /* + * Frame length=1518; MII mode; + */ + fec->eth->r_cntrl = 0x05ee0024; /*0x05ee0004;FIXME */ + } + + fec->eth->x_cntrl = 0x00000000; /* half-duplex, heartbeat disabled */ + if (fec->xcv_type != SEVENWIRE) { + /* + * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock + * and do not drop the Preamble. + */ + /* tbd - rtm */ + /*fec->eth->mii_speed = (((gd->ipb_clk >> 20) / 5) << 1); */ + /* No MII for 7-wire mode */ + fec->eth->mii_speed = 0x00000030; + } + + /* + * Set Opcode/Pause Duration Register + */ + fec->eth->op_pause = 0x00010020; /*FIXME0xffff0020; */ + + /* + * Set Rx FIFO alarm and granularity value + */ + fec->eth->rfifo_cntrl = 0x0c000000; + fec->eth->rfifo_alarm = 0x0000030c; +#ifdef DEBUG + if (fec->eth->rfifo_status & 0x00700000) { + printf ("mpc8220_fec_init() RFIFO error\n"); + } +#endif + + /* + * Set Tx FIFO granularity value + */ + /*fec->eth->tfifo_cntrl = 0x0c000000; */ /*tbd - rtm */ + fec->eth->tfifo_cntrl = 0x0e000000; +#ifdef DEBUG + printf ("tfifo_status: 0x%08x\n", fec->eth->tfifo_status); + printf ("tfifo_alarm: 0x%08x\n", fec->eth->tfifo_alarm); +#endif + + /* + * Set transmit fifo watermark register(X_WMRK), default = 64 + */ + fec->eth->tfifo_alarm = 0x00000080; + fec->eth->x_wmrk = 0x2; + + /* + * Set individual address filter for unicast address + * and set physical address registers. + */ + mpc8220_fec_set_hwaddr (fec, (char *)(dev->enetaddr)); + + /* + * Set multicast address filter + */ + fec->eth->gaddr1 = 0x00000000; + fec->eth->gaddr2 = 0x00000000; + + /* + * Turn ON cheater FSM: ???? + */ + fec->eth->xmit_fsm = 0x03000000; + +#if 1 +/*#if defined(CONFIG_MPC5200)*/ + /* + * Turn off COMM bus prefetch in the MGT5200 BestComm. It doesn't + * work w/ the current receive task. + */ + dma->PtdCntrl |= 0x00000001; +#endif + + /* + * Set priority of different initiators + */ + dma->IPR0 = 7; /* always */ + dma->IPR3 = 6; /* Eth RX */ + dma->IPR4 = 5; /* Eth Tx */ + + /* + * Clear SmartDMA task interrupt pending bits + */ + DMA_CLEAR_IEVENT (FEC_RECV_TASK_NO); + + /* + * Initialize SmartDMA parameters stored in SRAM + */ + *(int *) FEC_TBD_BASE = (int) fec->tbdBase; + *(int *) FEC_RBD_BASE = (int) fec->rbdBase; + *(int *) FEC_TBD_NEXT = (int) fec->tbdBase; + *(int *) FEC_RBD_NEXT = (int) fec->rbdBase; + + if (fec->xcv_type != SEVENWIRE) { + /* + * Initialize PHY(LXT971A): + * + * Generally, on power up, the LXT971A reads its configuration + * pins to check for forced operation, If not cofigured for + * forced operation, it uses auto-negotiation/parallel detection + * to automatically determine line operating conditions. + * If the PHY device on the other side of the link supports + * auto-negotiation, the LXT971A auto-negotiates with it + * using Fast Link Pulse(FLP) Bursts. If the PHY partner does not + * support auto-negotiation, the LXT971A automatically detects + * the presence of either link pulses(10Mbps PHY) or Idle + * symbols(100Mbps) and sets its operating conditions accordingly. + * + * When auto-negotiation is controlled by software, the following + * steps are recommended. + * + * Note: + * The physical address is dependent on hardware configuration. + * + */ + int timeout = 1; + u16 phyStatus; + + /* + * Reset PHY, then delay 300ns + */ + miiphy_write (dev->name, phyAddr, 0x0, 0x8000); + udelay (1000); + + if (fec->xcv_type == MII10) { + /* + * Force 10Base-T, FDX operation + */ +#ifdef DEBUG + printf ("Forcing 10 Mbps ethernet link... "); +#endif + miiphy_read (dev->name, phyAddr, 0x1, &phyStatus); + /* + miiphy_write(fec, phyAddr, 0x0, 0x0100); + */ + miiphy_write (dev->name, phyAddr, 0x0, 0x0180); + + timeout = 20; + do { /* wait for link status to go down */ + udelay (10000); + if ((timeout--) == 0) { +#ifdef DEBUG + printf ("hmmm, should not have waited..."); +#endif + break; + } + miiphy_read (dev->name, phyAddr, 0x1, &phyStatus); +#ifdef DEBUG + printf ("="); +#endif + } while ((phyStatus & 0x0004)); /* !link up */ + + timeout = 1000; + do { /* wait for link status to come back up */ + udelay (10000); + if ((timeout--) == 0) { + printf ("failed. Link is down.\n"); + break; + } + miiphy_read (dev->name, phyAddr, 0x1, &phyStatus); +#ifdef DEBUG + printf ("+"); +#endif + } while (!(phyStatus & 0x0004)); /* !link up */ + +#ifdef DEBUG + printf ("done.\n"); +#endif + } else { /* MII100 */ + /* + * Set the auto-negotiation advertisement register bits + */ + miiphy_write (dev->name, phyAddr, 0x4, 0x01e1); + + /* + * Set MDIO bit 0.12 = 1(&& bit 0.9=1?) to enable auto-negotiation + */ + miiphy_write (dev->name, phyAddr, 0x0, 0x1200); + + /* + * Wait for AN completion + */ + timeout = 5000; + do { + udelay (1000); + + if ((timeout--) == 0) { +#ifdef DEBUG + printf ("PHY auto neg 0 failed...\n"); +#endif + return -1; + } + + if (miiphy_read (dev->name, phyAddr, 0x1, &phyStatus) != + 0) { +#ifdef DEBUG + printf ("PHY auto neg 1 failed 0x%04x...\n", phyStatus); +#endif + return -1; + } + } while (!(phyStatus & 0x0004)); + +#ifdef DEBUG + printf ("PHY auto neg complete! \n"); +#endif + } + + } + + /* + * Enable FEC-Lite controller + */ + fec->eth->ecntrl |= 0x00000006; + +#ifdef DEBUG + if (fec->xcv_type != SEVENWIRE) + mpc8220_fec_phydump (dev->name); +#endif + + /* + * Enable SmartDMA receive task + */ + DMA_TASK_ENABLE (FEC_RECV_TASK_NO); + +#ifdef DEBUG + printf ("mpc8220_fec_init... Done \n"); +#endif + + return 1; +} + +/********************************************************************/ +static void mpc8220_fec_halt (struct eth_device *dev) +{ + mpc8220_fec_priv *fec = (mpc8220_fec_priv *) dev->priv; + int counter = 0xffff; + +#ifdef DEBUG + if (fec->xcv_type != SEVENWIRE) + mpc8220_fec_phydump (dev->name); +#endif + + /* + * mask FEC chip interrupts + */ + fec->eth->imask = 0; + + /* + * issue graceful stop command to the FEC transmitter if necessary + */ + fec->eth->x_cntrl |= 0x00000001; + + /* + * wait for graceful stop to register + */ + while ((counter--) && (!(fec->eth->ievent & 0x10000000))); + + /* + * Disable SmartDMA tasks + */ + DMA_TASK_DISABLE (FEC_XMIT_TASK_NO); + DMA_TASK_DISABLE (FEC_RECV_TASK_NO); + + /* + * Disable the Ethernet Controller + */ + fec->eth->ecntrl &= 0xfffffffd; + + /* + * Clear FIFO status registers + */ + fec->eth->rfifo_status &= 0x00700000; + fec->eth->tfifo_status &= 0x00700000; + + fec->eth->reset_cntrl = 0x01000000; + + /* + * Issue a reset command to the FEC chip + */ + fec->eth->ecntrl |= 0x1; + + /* + * wait at least 16 clock cycles + */ + udelay (10); + +#ifdef DEBUG + printf ("Ethernet task stopped\n"); +#endif +} + +#ifdef DEBUG +/********************************************************************/ + +static void tfifo_print (char *devname, mpc8220_fec_priv * fec) +{ + u16 phyAddr = CONFIG_PHY_ADDR; + u16 phyStatus; + + if ((fec->eth->tfifo_lrf_ptr != fec->eth->tfifo_lwf_ptr) + || (fec->eth->tfifo_rdptr != fec->eth->tfifo_wrptr)) { + + miiphy_read (devname, phyAddr, 0x1, &phyStatus); + printf ("\nphyStatus: 0x%04x\n", phyStatus); + printf ("ecntrl: 0x%08x\n", fec->eth->ecntrl); + printf ("ievent: 0x%08x\n", fec->eth->ievent); + printf ("x_status: 0x%08x\n", fec->eth->x_status); + printf ("tfifo: status 0x%08x\n", fec->eth->tfifo_status); + + printf (" control 0x%08x\n", fec->eth->tfifo_cntrl); + printf (" lrfp 0x%08x\n", fec->eth->tfifo_lrf_ptr); + printf (" lwfp 0x%08x\n", fec->eth->tfifo_lwf_ptr); + printf (" alarm 0x%08x\n", fec->eth->tfifo_alarm); + printf (" readptr 0x%08x\n", fec->eth->tfifo_rdptr); + printf (" writptr 0x%08x\n", fec->eth->tfifo_wrptr); + } +} + +static void rfifo_print (char *devname, mpc8220_fec_priv * fec) +{ + u16 phyAddr = CONFIG_PHY_ADDR; + u16 phyStatus; + + if ((fec->eth->rfifo_lrf_ptr != fec->eth->rfifo_lwf_ptr) + || (fec->eth->rfifo_rdptr != fec->eth->rfifo_wrptr)) { + + miiphy_read (devname, phyAddr, 0x1, &phyStatus); + printf ("\nphyStatus: 0x%04x\n", phyStatus); + printf ("ecntrl: 0x%08x\n", fec->eth->ecntrl); + printf ("ievent: 0x%08x\n", fec->eth->ievent); + printf ("x_status: 0x%08x\n", fec->eth->x_status); + printf ("rfifo: status 0x%08x\n", fec->eth->rfifo_status); + + printf (" control 0x%08x\n", fec->eth->rfifo_cntrl); + printf (" lrfp 0x%08x\n", fec->eth->rfifo_lrf_ptr); + printf (" lwfp 0x%08x\n", fec->eth->rfifo_lwf_ptr); + printf (" alarm 0x%08x\n", fec->eth->rfifo_alarm); + printf (" readptr 0x%08x\n", fec->eth->rfifo_rdptr); + printf (" writptr 0x%08x\n", fec->eth->rfifo_wrptr); + } +} +#endif /* DEBUG */ + +/********************************************************************/ + +static int mpc8220_fec_send (struct eth_device *dev, volatile void *eth_data, + int data_length) +{ + /* + * This routine transmits one frame. This routine only accepts + * 6-byte Ethernet addresses. + */ + mpc8220_fec_priv *fec = (mpc8220_fec_priv *) dev->priv; + FEC_TBD *pTbd; + +#ifdef DEBUG + printf ("tbd status: 0x%04x\n", fec->tbdBase[0].status); + tfifo_print (dev->name, fec); +#endif + + /* + * Clear Tx BD ring at first + */ + mpc8220_fec_tbd_scrub (fec); + + /* + * Check for valid length of data. + */ + if ((data_length > 1500) || (data_length <= 0)) { + return -1; + } + + /* + * Check the number of vacant TxBDs. + */ + if (fec->cleanTbdNum < 1) { +#ifdef DEBUG + printf ("No available TxBDs ...\n"); +#endif + return -1; + } + + /* + * Get the first TxBD to send the mac header + */ + pTbd = &fec->tbdBase[fec->tbdIndex]; + pTbd->dataLength = data_length; + pTbd->dataPointer = (u32) eth_data; + pTbd->status |= FEC_TBD_LAST | FEC_TBD_TC | FEC_TBD_READY; + fec->tbdIndex = (fec->tbdIndex + 1) % FEC_TBD_NUM; + +#ifdef DEBUG + printf ("DMA_TASK_ENABLE, fec->tbdIndex = %d \n", fec->tbdIndex); +#endif + + /* + * Kick the MII i/f + */ + if (fec->xcv_type != SEVENWIRE) { + u16 phyStatus; + + miiphy_read (dev->name, 0, 0x1, &phyStatus); + } + + /* + * Enable SmartDMA transmit task + */ + +#ifdef DEBUG + tfifo_print (dev->name, fec); +#endif + + DMA_TASK_ENABLE (FEC_XMIT_TASK_NO); + +#ifdef DEBUG + tfifo_print (dev->name, fec); +#endif + +#ifdef DEBUG + printf ("+"); +#endif + + fec->cleanTbdNum -= 1; + +#ifdef DEBUG + printf ("smartDMA ethernet Tx task enabled\n"); +#endif + /* + * wait until frame is sent . + */ + while (pTbd->status & FEC_TBD_READY) { + udelay (10); +#ifdef DEBUG + printf ("TDB status = %04x\n", pTbd->status); +#endif + } + + return 0; +} + + +/********************************************************************/ +static int mpc8220_fec_recv (struct eth_device *dev) +{ + /* + * This command pulls one frame from the card + */ + mpc8220_fec_priv *fec = (mpc8220_fec_priv *) dev->priv; + FEC_RBD *pRbd = &fec->rbdBase[fec->rbdIndex]; + unsigned long ievent; + int frame_length, len = 0; + NBUF *frame; + +#ifdef DEBUG + printf ("mpc8220_fec_recv %d Start...\n", fec->rbdIndex); + printf ("-"); +#endif + + /* + * Check if any critical events have happened + */ + ievent = fec->eth->ievent; + fec->eth->ievent = ievent; + if (ievent & 0x20060000) { + /* BABT, Rx/Tx FIFO errors */ + mpc8220_fec_halt (dev); + mpc8220_fec_init (dev, NULL); + return 0; + } + if (ievent & 0x80000000) { + /* Heartbeat error */ + fec->eth->x_cntrl |= 0x00000001; + } + if (ievent & 0x10000000) { + /* Graceful stop complete */ + if (fec->eth->x_cntrl & 0x00000001) { + mpc8220_fec_halt (dev); + fec->eth->x_cntrl &= ~0x00000001; + mpc8220_fec_init (dev, NULL); + } + } + + if (!(pRbd->status & FEC_RBD_EMPTY)) { + if ((pRbd->status & FEC_RBD_LAST) + && !(pRbd->status & FEC_RBD_ERR) + && ((pRbd->dataLength - 4) > 14)) { + + /* + * Get buffer address and size + */ + frame = (NBUF *) pRbd->dataPointer; + frame_length = pRbd->dataLength - 4; + +#if (0) + { + int i; + + printf ("recv data hdr:"); + for (i = 0; i < 14; i++) + printf ("%x ", *(frame->head + i)); + printf ("\n"); + } +#endif + /* + * Fill the buffer and pass it to upper layers + */ +/* memcpy(buff, frame->head, 14); + memcpy(buff + 14, frame->data, frame_length);*/ + NetReceive ((volatile uchar *) pRbd->dataPointer, + frame_length); + len = frame_length; + } + /* + * Reset buffer descriptor as empty + */ + mpc8220_fec_rbd_clean (fec, pRbd); + } + DMA_CLEAR_IEVENT (FEC_RECV_TASK_NO); + return len; +} + + +/********************************************************************/ +int mpc8220_fec_initialize (bd_t * bis) +{ + mpc8220_fec_priv *fec; + +#ifdef CONFIG_HAS_ETH1 + mpc8220_fec_priv *fec2; +#endif + struct eth_device *dev; + char *tmp, *end; + char env_enetaddr[6]; + +#ifdef CONFIG_HAS_ETH1 + char env_enet1addr[6]; +#endif + int i; + + fec = (mpc8220_fec_priv *) malloc (sizeof (*fec)); + dev = (struct eth_device *) malloc (sizeof (*dev)); + memset (dev, 0, sizeof *dev); + + fec->eth = (ethernet_regs *) MMAP_FEC1; +#ifdef CONFIG_HAS_ETH1 + fec2 = (mpc8220_fec_priv *) malloc (sizeof (*fec)); + fec2->eth = (ethernet_regs *) MMAP_FEC2; +#endif + fec->tbdBase = (FEC_TBD *) FEC_BD_BASE; + fec->rbdBase = + (FEC_RBD *) (FEC_BD_BASE + FEC_TBD_NUM * sizeof (FEC_TBD)); + fec->xcv_type = MII100; + + dev->priv = (void *) fec; + dev->iobase = MMAP_FEC1; + dev->init = mpc8220_fec_init; + dev->halt = mpc8220_fec_halt; + dev->send = mpc8220_fec_send; + dev->recv = mpc8220_fec_recv; + + sprintf (dev->name, "FEC ETHERNET"); + eth_register (dev); + +#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) + miiphy_register (dev->name, + fec8220_miiphy_read, fec8220_miiphy_write); +#endif + + /* + * Try to set the mac address now. The fec mac address is + * a garbage after reset. When not using fec for booting + * the Linux fec driver will try to work with this garbage. + */ + tmp = getenv ("ethaddr"); + if (tmp) { + for (i = 0; i < 6; i++) { + env_enetaddr[i] = + tmp ? simple_strtoul (tmp, &end, 16) : 0; + if (tmp) + tmp = (*end) ? end + 1 : end; + } + mpc8220_fec_set_hwaddr (fec, env_enetaddr); + } +#ifdef CONFIG_HAS_ETH1 + tmp = getenv ("eth1addr"); + if (tmp) { + for (i = 0; i < 6; i++) { + env_enet1addr[i] = + tmp ? simple_strtoul (tmp, &end, 16) : 0; + if (tmp) + tmp = (*end) ? end + 1 : end; + } + mpc8220_fec_set_hwaddr (fec2, env_enet1addr); + } +#endif + + return 1; +} + +/* MII-interface related functions */ +/********************************************************************/ +int fec8220_miiphy_read (char *devname, u8 phyAddr, u8 regAddr, u16 * retVal) +{ + ethernet_regs *eth = (ethernet_regs *) MMAP_FEC1; + u32 reg; /* convenient holder for the PHY register */ + u32 phy; /* convenient holder for the PHY */ + int timeout = 0xffff; + + /* + * reading from any PHY's register is done by properly + * programming the FEC's MII data register. + */ + reg = regAddr << FEC_MII_DATA_RA_SHIFT; + phy = phyAddr << FEC_MII_DATA_PA_SHIFT; + + eth->mii_data = + (FEC_MII_DATA_ST | FEC_MII_DATA_OP_RD | FEC_MII_DATA_TA | phy + | reg); + + /* + * wait for the related interrupt + */ + while ((timeout--) && (!(eth->ievent & 0x00800000))); + + if (timeout == 0) { +#ifdef DEBUG + printf ("Read MDIO failed...\n"); +#endif + return -1; + } + + /* + * clear mii interrupt bit + */ + eth->ievent = 0x00800000; + + /* + * it's now safe to read the PHY's register + */ + *retVal = (u16) eth->mii_data; + + return 0; +} + +/********************************************************************/ +int fec8220_miiphy_write (char *devname, u8 phyAddr, u8 regAddr, u16 data) +{ + ethernet_regs *eth = (ethernet_regs *) MMAP_FEC1; + u32 reg; /* convenient holder for the PHY register */ + u32 phy; /* convenient holder for the PHY */ + int timeout = 0xffff; + + reg = regAddr << FEC_MII_DATA_RA_SHIFT; + phy = phyAddr << FEC_MII_DATA_PA_SHIFT; + + eth->mii_data = (FEC_MII_DATA_ST | FEC_MII_DATA_OP_WR | + FEC_MII_DATA_TA | phy | reg | data); + + /* + * wait for the MII interrupt + */ + while ((timeout--) && (!(eth->ievent & 0x00800000))); + + if (timeout == 0) { +#ifdef DEBUG + printf ("Write MDIO failed...\n"); +#endif + return -1; + } + + /* + * clear MII interrupt bit + */ + eth->ievent = 0x00800000; + + return 0; +} + +#ifdef DEBUG +static u32 local_crc32 (char *string, unsigned int crc_value, int len) +{ + int i; + char c; + unsigned int crc, count; + + /* + * crc32 algorithm + */ + /* + * crc = 0xffffffff; * The initialized value should be 0xffffffff + */ + crc = crc_value; + + for (i = len; --i >= 0;) { + c = *string++; + for (count = 0; count < 8; count++) { + if ((c & 0x01) ^ (crc & 0x01)) { + crc >>= 1; + crc = crc ^ 0xedb88320; + } else { + crc >>= 1; + } + c >>= 1; + } + } + + /* + * In big endian system, do byte swaping for crc value + */ + return crc; +} +#endif /* DEBUG */ + +#endif /* CONFIG_MPC8220_FEC */ diff --git a/arch/ppc/cpu/mpc8220/fec.h b/arch/ppc/cpu/mpc8220/fec.h new file mode 100644 index 0000000..a8927fc --- /dev/null +++ b/arch/ppc/cpu/mpc8220/fec.h @@ -0,0 +1,283 @@ +/* + * (C) Copyright 2003-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * This file is based on mpc4200fec.h + * (C) Copyright Motorola, Inc., 2000 + * + * odin ethernet header file + */ + +#ifndef __MPC8220_FEC_H +#define __MPC8220_FEC_H + +#include <common.h> +#include <mpc8220.h> +#include "dma.h" + +typedef struct ethernet_register_set { + +/* [10:2]addr = 00 */ + +/* Control and status Registers (offset 000-1FF) */ + + volatile u32 fec_id; /* MBAR_ETH + 0x000 */ + volatile u32 ievent; /* MBAR_ETH + 0x004 */ + volatile u32 imask; /* MBAR_ETH + 0x008 */ + + volatile u32 RES0[1]; /* MBAR_ETH + 0x00C */ + volatile u32 r_des_active; /* MBAR_ETH + 0x010 */ + volatile u32 x_des_active; /* MBAR_ETH + 0x014 */ + volatile u32 r_des_active_cl; /* MBAR_ETH + 0x018 */ + volatile u32 x_des_active_cl; /* MBAR_ETH + 0x01C */ + volatile u32 ivent_set; /* MBAR_ETH + 0x020 */ + volatile u32 ecntrl; /* MBAR_ETH + 0x024 */ + + volatile u32 RES1[6]; /* MBAR_ETH + 0x028-03C */ + volatile u32 mii_data; /* MBAR_ETH + 0x040 */ + volatile u32 mii_speed; /* MBAR_ETH + 0x044 */ + volatile u32 mii_status; /* MBAR_ETH + 0x048 */ + + volatile u32 RES2[5]; /* MBAR_ETH + 0x04C-05C */ + volatile u32 mib_data; /* MBAR_ETH + 0x060 */ + volatile u32 mib_control; /* MBAR_ETH + 0x064 */ + + volatile u32 RES3[6]; /* MBAR_ETH + 0x068-7C */ + volatile u32 r_activate; /* MBAR_ETH + 0x080 */ + volatile u32 r_cntrl; /* MBAR_ETH + 0x084 */ + volatile u32 r_hash; /* MBAR_ETH + 0x088 */ + volatile u32 r_data; /* MBAR_ETH + 0x08C */ + volatile u32 ar_done; /* MBAR_ETH + 0x090 */ + volatile u32 r_test; /* MBAR_ETH + 0x094 */ + volatile u32 r_mib; /* MBAR_ETH + 0x098 */ + volatile u32 r_da_low; /* MBAR_ETH + 0x09C */ + volatile u32 r_da_high; /* MBAR_ETH + 0x0A0 */ + + volatile u32 RES4[7]; /* MBAR_ETH + 0x0A4-0BC */ + volatile u32 x_activate; /* MBAR_ETH + 0x0C0 */ + volatile u32 x_cntrl; /* MBAR_ETH + 0x0C4 */ + volatile u32 backoff; /* MBAR_ETH + 0x0C8 */ + volatile u32 x_data; /* MBAR_ETH + 0x0CC */ + volatile u32 x_status; /* MBAR_ETH + 0x0D0 */ + volatile u32 x_mib; /* MBAR_ETH + 0x0D4 */ + volatile u32 x_test; /* MBAR_ETH + 0x0D8 */ + volatile u32 fdxfc_da1; /* MBAR_ETH + 0x0DC */ + volatile u32 fdxfc_da2; /* MBAR_ETH + 0x0E0 */ + volatile u32 paddr1; /* MBAR_ETH + 0x0E4 */ + volatile u32 paddr2; /* MBAR_ETH + 0x0E8 */ + volatile u32 op_pause; /* MBAR_ETH + 0x0EC */ + + volatile u32 RES5[4]; /* MBAR_ETH + 0x0F0-0FC */ + volatile u32 instr_reg; /* MBAR_ETH + 0x100 */ + volatile u32 context_reg; /* MBAR_ETH + 0x104 */ + volatile u32 test_cntrl; /* MBAR_ETH + 0x108 */ + volatile u32 acc_reg; /* MBAR_ETH + 0x10C */ + volatile u32 ones; /* MBAR_ETH + 0x110 */ + volatile u32 zeros; /* MBAR_ETH + 0x114 */ + volatile u32 iaddr1; /* MBAR_ETH + 0x118 */ + volatile u32 iaddr2; /* MBAR_ETH + 0x11C */ + volatile u32 gaddr1; /* MBAR_ETH + 0x120 */ + volatile u32 gaddr2; /* MBAR_ETH + 0x124 */ + volatile u32 random; /* MBAR_ETH + 0x128 */ + volatile u32 rand1; /* MBAR_ETH + 0x12C */ + volatile u32 tmp; /* MBAR_ETH + 0x130 */ + + volatile u32 RES6[3]; /* MBAR_ETH + 0x134-13C */ + volatile u32 fifo_id; /* MBAR_ETH + 0x140 */ + volatile u32 x_wmrk; /* MBAR_ETH + 0x144 */ + volatile u32 fcntrl; /* MBAR_ETH + 0x148 */ + volatile u32 r_bound; /* MBAR_ETH + 0x14C */ + volatile u32 r_fstart; /* MBAR_ETH + 0x150 */ + volatile u32 r_count; /* MBAR_ETH + 0x154 */ + volatile u32 r_lag; /* MBAR_ETH + 0x158 */ + volatile u32 r_read; /* MBAR_ETH + 0x15C */ + volatile u32 r_write; /* MBAR_ETH + 0x160 */ + volatile u32 x_count; /* MBAR_ETH + 0x164 */ + volatile u32 x_lag; /* MBAR_ETH + 0x168 */ + volatile u32 x_retry; /* MBAR_ETH + 0x16C */ + volatile u32 x_write; /* MBAR_ETH + 0x170 */ + volatile u32 x_read; /* MBAR_ETH + 0x174 */ + + volatile u32 RES7[2]; /* MBAR_ETH + 0x178-17C */ + volatile u32 fm_cntrl; /* MBAR_ETH + 0x180 */ + volatile u32 rfifo_data; /* MBAR_ETH + 0x184 */ + volatile u32 rfifo_status; /* MBAR_ETH + 0x188 */ + volatile u32 rfifo_cntrl; /* MBAR_ETH + 0x18C */ + volatile u32 rfifo_lrf_ptr; /* MBAR_ETH + 0x190 */ + volatile u32 rfifo_lwf_ptr; /* MBAR_ETH + 0x194 */ + volatile u32 rfifo_alarm; /* MBAR_ETH + 0x198 */ + volatile u32 rfifo_rdptr; /* MBAR_ETH + 0x19C */ + volatile u32 rfifo_wrptr; /* MBAR_ETH + 0x1A0 */ + volatile u32 tfifo_data; /* MBAR_ETH + 0x1A4 */ + volatile u32 tfifo_status; /* MBAR_ETH + 0x1A8 */ + volatile u32 tfifo_cntrl; /* MBAR_ETH + 0x1AC */ + volatile u32 tfifo_lrf_ptr; /* MBAR_ETH + 0x1B0 */ + volatile u32 tfifo_lwf_ptr; /* MBAR_ETH + 0x1B4 */ + volatile u32 tfifo_alarm; /* MBAR_ETH + 0x1B8 */ + volatile u32 tfifo_rdptr; /* MBAR_ETH + 0x1BC */ + volatile u32 tfifo_wrptr; /* MBAR_ETH + 0x1C0 */ + + volatile u32 reset_cntrl; /* MBAR_ETH + 0x1C4 */ + volatile u32 xmit_fsm; /* MBAR_ETH + 0x1C8 */ + + volatile u32 RES8[3]; /* MBAR_ETH + 0x1CC-1D4 */ + volatile u32 rdes_data0; /* MBAR_ETH + 0x1D8 */ + volatile u32 rdes_data1; /* MBAR_ETH + 0x1DC */ + volatile u32 r_length; /* MBAR_ETH + 0x1E0 */ + volatile u32 x_length; /* MBAR_ETH + 0x1E4 */ + volatile u32 x_addr; /* MBAR_ETH + 0x1E8 */ + volatile u32 cdes_data; /* MBAR_ETH + 0x1EC */ + volatile u32 status; /* MBAR_ETH + 0x1F0 */ + volatile u32 dma_control; /* MBAR_ETH + 0x1F4 */ + volatile u32 des_cmnd; /* MBAR_ETH + 0x1F8 */ + volatile u32 data; /* MBAR_ETH + 0x1FC */ + + /* MIB COUNTERS (Offset 200-2FF) */ + + volatile u32 rmon_t_drop; /* MBAR_ETH + 0x200 */ + volatile u32 rmon_t_packets; /* MBAR_ETH + 0x204 */ + volatile u32 rmon_t_bc_pkt; /* MBAR_ETH + 0x208 */ + volatile u32 rmon_t_mc_pkt; /* MBAR_ETH + 0x20C */ + volatile u32 rmon_t_crc_align; /* MBAR_ETH + 0x210 */ + volatile u32 rmon_t_undersize; /* MBAR_ETH + 0x214 */ + volatile u32 rmon_t_oversize; /* MBAR_ETH + 0x218 */ + volatile u32 rmon_t_frag; /* MBAR_ETH + 0x21C */ + volatile u32 rmon_t_jab; /* MBAR_ETH + 0x220 */ + volatile u32 rmon_t_col; /* MBAR_ETH + 0x224 */ + volatile u32 rmon_t_p64; /* MBAR_ETH + 0x228 */ + volatile u32 rmon_t_p65to127; /* MBAR_ETH + 0x22C */ + volatile u32 rmon_t_p128to255; /* MBAR_ETH + 0x230 */ + volatile u32 rmon_t_p256to511; /* MBAR_ETH + 0x234 */ + volatile u32 rmon_t_p512to1023; /* MBAR_ETH + 0x238 */ + volatile u32 rmon_t_p1024to2047;/* MBAR_ETH + 0x23C */ + volatile u32 rmon_t_p_gte2048; /* MBAR_ETH + 0x240 */ + volatile u32 rmon_t_octets; /* MBAR_ETH + 0x244 */ + volatile u32 ieee_t_drop; /* MBAR_ETH + 0x248 */ + volatile u32 ieee_t_frame_ok; /* MBAR_ETH + 0x24C */ + volatile u32 ieee_t_1col; /* MBAR_ETH + 0x250 */ + volatile u32 ieee_t_mcol; /* MBAR_ETH + 0x254 */ + volatile u32 ieee_t_def; /* MBAR_ETH + 0x258 */ + volatile u32 ieee_t_lcol; /* MBAR_ETH + 0x25C */ + volatile u32 ieee_t_excol; /* MBAR_ETH + 0x260 */ + volatile u32 ieee_t_macerr; /* MBAR_ETH + 0x264 */ + volatile u32 ieee_t_cserr; /* MBAR_ETH + 0x268 */ + volatile u32 ieee_t_sqe; /* MBAR_ETH + 0x26C */ + volatile u32 t_fdxfc; /* MBAR_ETH + 0x270 */ + volatile u32 ieee_t_octets_ok; /* MBAR_ETH + 0x274 */ + + volatile u32 RES9[2]; /* MBAR_ETH + 0x278-27C */ + volatile u32 rmon_r_drop; /* MBAR_ETH + 0x280 */ + volatile u32 rmon_r_packets; /* MBAR_ETH + 0x284 */ + volatile u32 rmon_r_bc_pkt; /* MBAR_ETH + 0x288 */ + volatile u32 rmon_r_mc_pkt; /* MBAR_ETH + 0x28C */ + volatile u32 rmon_r_crc_align; /* MBAR_ETH + 0x290 */ + volatile u32 rmon_r_undersize; /* MBAR_ETH + 0x294 */ + volatile u32 rmon_r_oversize; /* MBAR_ETH + 0x298 */ + volatile u32 rmon_r_frag; /* MBAR_ETH + 0x29C */ + volatile u32 rmon_r_jab; /* MBAR_ETH + 0x2A0 */ + + volatile u32 rmon_r_resvd_0; /* MBAR_ETH + 0x2A4 */ + + volatile u32 rmon_r_p64; /* MBAR_ETH + 0x2A8 */ + volatile u32 rmon_r_p65to127; /* MBAR_ETH + 0x2AC */ + volatile u32 rmon_r_p128to255; /* MBAR_ETH + 0x2B0 */ + volatile u32 rmon_r_p256to511; /* MBAR_ETH + 0x2B4 */ + volatile u32 rmon_r_p512to1023; /* MBAR_ETH + 0x2B8 */ + volatile u32 rmon_r_p1024to2047;/* MBAR_ETH + 0x2BC */ + volatile u32 rmon_r_p_gte2048; /* MBAR_ETH + 0x2C0 */ + volatile u32 rmon_r_octets; /* MBAR_ETH + 0x2C4 */ + volatile u32 ieee_r_drop; /* MBAR_ETH + 0x2C8 */ + volatile u32 ieee_r_frame_ok; /* MBAR_ETH + 0x2CC */ + volatile u32 ieee_r_crc; /* MBAR_ETH + 0x2D0 */ + volatile u32 ieee_r_align; /* MBAR_ETH + 0x2D4 */ + volatile u32 r_macerr; /* MBAR_ETH + 0x2D8 */ + volatile u32 r_fdxfc; /* MBAR_ETH + 0x2DC */ + volatile u32 ieee_r_octets_ok; /* MBAR_ETH + 0x2E0 */ + + volatile u32 RES10[6]; /* MBAR_ETH + 0x2E4-2FC */ + + volatile u32 RES11[64]; /* MBAR_ETH + 0x300-3FF */ +} ethernet_regs; + +/* Receive & Transmit Buffer Descriptor definitions */ +typedef struct BufferDescriptor { + u16 status; + u16 dataLength; + u32 dataPointer; +} FEC_RBD; + +typedef struct { + u16 status; + u16 dataLength; + u32 dataPointer; +} FEC_TBD; + +/* private structure */ +typedef enum { + SEVENWIRE, /* 7-wire */ + MII10, /* MII 10Mbps */ + MII100 /* MII 100Mbps */ +} xceiver_type; + +typedef struct { + ethernet_regs *eth; + xceiver_type xcv_type; /* transceiver type */ + FEC_RBD *rbdBase; /* RBD ring */ + FEC_TBD *tbdBase; /* TBD ring */ + u16 rbdIndex; /* next receive BD to read */ + u16 tbdIndex; /* next transmit BD to send */ + u16 usedTbdIndex; /* next transmit BD to clean */ + u16 cleanTbdNum; /* the number of available transmit BDs */ +} mpc8220_fec_priv; + +/* Ethernet parameter area */ +#define FEC_TBD_BASE (FEC_PARAM_BASE + 0x00) +#define FEC_TBD_NEXT (FEC_PARAM_BASE + 0x04) +#define FEC_RBD_BASE (FEC_PARAM_BASE + 0x08) +#define FEC_RBD_NEXT (FEC_PARAM_BASE + 0x0c) + +/* BD Numer definitions */ +#define FEC_TBD_NUM 48 /* The user can adjust this value */ +#define FEC_RBD_NUM 32 /* The user can adjust this value */ + +/* packet size limit */ +#define FEC_MAX_PKT_SIZE 1536 + +/* RBD bits definitions */ +#define FEC_RBD_EMPTY 0x8000 /* Buffer is empty */ +#define FEC_RBD_WRAP 0x2000 /* Last BD in ring */ +#define FEC_RBD_INT 0x1000 /* Interrupt */ +#define FEC_RBD_LAST 0x0800 /* Buffer is last in frame(useless) */ +#define FEC_RBD_MISS 0x0100 /* Miss bit for prom mode */ +#define FEC_RBD_BC 0x0080 /* The received frame is broadcast frame */ +#define FEC_RBD_MC 0x0040 /* The received frame is multicast frame */ +#define FEC_RBD_LG 0x0020 /* Frame length violation */ +#define FEC_RBD_NO 0x0010 /* Nonoctet align frame */ +#define FEC_RBD_SH 0x0008 /* Short frame */ +#define FEC_RBD_CR 0x0004 /* CRC error */ +#define FEC_RBD_OV 0x0002 /* Receive FIFO overrun */ +#define FEC_RBD_TR 0x0001 /* Frame is truncated */ +#define FEC_RBD_ERR (FEC_RBD_LG | FEC_RBD_NO | FEC_RBD_CR | \ + FEC_RBD_OV | FEC_RBD_TR) + +/* TBD bits definitions */ +#define FEC_TBD_READY 0x8000 /* Buffer is ready */ +#define FEC_TBD_WRAP 0x2000 /* Last BD in ring */ +#define FEC_TBD_INT 0x1000 /* Interrupt */ +#define FEC_TBD_LAST 0x0800 /* Buffer is last in frame */ +#define FEC_TBD_TC 0x0400 /* Transmit the CRC */ +#define FEC_TBD_ABC 0x0200 /* Append bad CRC */ + +/* MII-related definitios */ +#define FEC_MII_DATA_ST 0x40000000 /* Start of frame delimiter */ +#define FEC_MII_DATA_OP_RD 0x20000000 /* Perform a read operation */ +#define FEC_MII_DATA_OP_WR 0x10000000 /* Perform a write operation */ +#define FEC_MII_DATA_PA_MSK 0x0f800000 /* PHY Address field mask */ +#define FEC_MII_DATA_RA_MSK 0x007c0000 /* PHY Register field mask */ +#define FEC_MII_DATA_TA 0x00020000 /* Turnaround */ +#define FEC_MII_DATA_DATAMSK 0x0000ffff /* PHY data field */ + +#define FEC_MII_DATA_RA_SHIFT 18 /* MII Register address bits */ +#define FEC_MII_DATA_PA_SHIFT 23 /* MII PHY address bits */ + +#endif /* __MPC8220_FEC_H */ diff --git a/arch/ppc/cpu/mpc8220/fec_dma_tasks.S b/arch/ppc/cpu/mpc8220/fec_dma_tasks.S new file mode 100644 index 0000000..3f8a03b --- /dev/null +++ b/arch/ppc/cpu/mpc8220/fec_dma_tasks.S @@ -0,0 +1,363 @@ +/* + * Copyright (C) 2004, Freescale Semiconductor, Inc. + * + * This file contains microcode for the FEC controller of the MPC8220. + */ + +#include <config.h> + +#if defined(CONFIG_MPC8220) + +/* sas/sccg, gas target */ +.section smartdmaInitData,"aw",@progbits /* Initialized data for task variables */ +.section smartdmaTaskTable,"aw",@progbits /* Task tables */ +.align 9 +.globl taskTable +taskTable: +.globl scEthernetRecv_Entry +scEthernetRecv_Entry: /* Task 0 */ +.long scEthernetRecv_TDT - taskTable /* Task 0 Descriptor Table */ +.long scEthernetRecv_TDT - taskTable + 0x00000094 +.long scEthernetRecv_VarTab - taskTable /* Task 0 Variable Table */ +.long scEthernetRecv_FDT - taskTable + 0x03 /* Task 0 Function Descriptor Table & Flags */ +.long 0x00000000 +.long 0x00000000 +.long scEthernetRecv_CSave - taskTable /* Task 0 context save space */ +.long 0xf0000000 +.globl scEthernetXmit_Entry +scEthernetXmit_Entry: /* Task 1 */ +.long scEthernetXmit_TDT - taskTable /* Task 1 Descriptor Table */ +.long scEthernetXmit_TDT - taskTable + 0x000000e0 +.long scEthernetXmit_VarTab - taskTable /* Task 1 Variable Table */ +.long scEthernetXmit_FDT - taskTable + 0x03 /* Task 1 Function Descriptor Table & Flags */ +.long 0x00000000 +.long 0x00000000 +.long scEthernetXmit_CSave - taskTable /* Task 1 context save space */ +.long 0xf0000000 + + +.globl scEthernetRecv_TDT +scEthernetRecv_TDT: /* Task 0 Descriptor Table */ +.long 0xc4c50000 /* 0000(153): LCDEXT: idx0 = var9 + var10; idx0 once var0; idx0 += inc0 */ +.long 0x84c5e000 /* 0004(153): LCD: idx1 = var9 + var11; ; idx1 += inc0 */ +.long 0x10001f08 /* 0008(156): DRD1A: var7 = idx1; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x10000380 /* 000C(157): DRD1A: var0 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x00000f88 /* 0010(158): DRD1A: var3 = *idx1; FN=0 init=0 WS=0 RS=0 */ +.long 0x81980000 /* 0014(162): LCD: idx0 = var3; idx0 once var0; idx0 += inc0 */ +.long 0x10000780 /* 0018(164): DRD1A: var1 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x60000000 /* 001C(165): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ +.long 0x010cf04c /* 0020(165): DRD2B1: var4 = EU3(); EU3(var1,var12) */ +.long 0x82180349 /* 0024(169): LCD: idx0 = var4; idx0 != var13; idx0 += inc1 */ +.long 0x81c68004 /* 0028(172): LCD: idx1 = var3 + var13 + 4; idx1 once var0; idx1 += inc0 */ +.long 0x70000000 /* 002C(174): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ +.long 0x018cf04e /* 0030(174): DRD2B1: var6 = EU3(); EU3(var1,var14) */ +.long 0x70000000 /* 0034(175): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ +.long 0x020cf04f /* 0038(175): DRD2B1: var8 = EU3(); EU3(var1,var15) */ +.long 0x00000b88 /* 003C(176): DRD1A: var2 = *idx1; FN=0 init=0 WS=0 RS=0 */ +.long 0x80025184 /* 0040(205): LCDEXT: idx1 = 0xf0009184; ; */ +.long 0x86810412 /* 0044(205): LCD: idx2 = var13, idx3 = var2; idx2 < var16; idx2 += inc2, idx3 += inc2 */ +.long 0x0200cf88 /* 0048(209): DRD1A: *idx3 = *idx1; FN=0 init=16 WS=0 RS=0 */ +.long 0x80025184 /* 004C(217): LCDEXT: idx1 = 0xf0009184; ; */ +.long 0x8681845b /* 0050(217): LCD: idx2 = var13, idx3 = var3; idx2 < var17; idx2 += inc3, idx3 += inc3 */ +.long 0x0000cf88 /* 0054(221): DRD1A: *idx3 = *idx1; FN=0 init=0 WS=0 RS=0 */ +.long 0xc31883a4 /* 0058(225): LCDEXT: idx1 = var6; idx1 == var14; idx1 += inc4 */ +.long 0x80190000 /* 005C(225): LCD: idx2 = var0; idx2 once var0; idx2 += inc0 */ +.long 0x04008468 /* 0060(227): DRD1A: idx1 = var13; FN=0 INT init=0 WS=0 RS=0 */ +.long 0xc4038360 /* 0064(232): LCDEXT: idx1 = var8, idx2 = var7; idx1 == var13; idx1 += inc4, idx2 += inc0 */ +.long 0x81c50000 /* 0068(233): LCD: idx3 = var3 + var10; idx3 once var0; idx3 += inc0 */ +.long 0x1000cb18 /* 006C(235): DRD1A: *idx2 = idx3; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x00000f18 /* 0070(236): DRD1A: var3 = idx3; FN=0 init=0 WS=0 RS=0 */ +.long 0xc418836d /* 0074(238): LCDEXT: idx1 = var8; idx1 > var13; idx1 += inc5 */ +.long 0x83990000 /* 0078(238): LCD: idx2 = var7; idx2 once var0; idx2 += inc0 */ +.long 0x10000c00 /* 007C(240): DRD1A: var3 = var0; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x0000c800 /* 0080(241): DRD1A: *idx2 = var0; FN=0 init=0 WS=0 RS=0 */ +.long 0x81988000 /* 0084(245): LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */ +.long 0x10000788 /* 0088(247): DRD1A: var1 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x60000000 /* 008C(248): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ +.long 0x080cf04c /* 0090(248): DRD2B1: idx0 = EU3(); EU3(var1,var12) */ +.long 0x000001f8 /* 0094(:0): NOP */ + + +.globl scEthernetXmit_TDT +scEthernetXmit_TDT: /* Task 1 Descriptor Table */ +.long 0x80095b00 /* 0000(280): LCDEXT: idx0 = 0xf0025b00; ; */ +.long 0x85c60004 /* 0004(280): LCD: idx1 = var11 + var12 + 4; idx1 once var0; idx1 += inc0 */ +.long 0x10002308 /* 0008(283): DRD1A: var8 = idx1; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x10000f88 /* 000C(284): DRD1A: var3 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x00000380 /* 0010(285): DRD1A: var0 = *idx0; FN=0 init=0 WS=0 RS=0 */ +.long 0x81980000 /* 0014(288): LCD: idx0 = var3; idx0 once var0; idx0 += inc0 */ +.long 0x10000780 /* 0018(290): DRD1A: var1 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x60000000 /* 001C(291): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ +.long 0x024cf04d /* 0020(291): DRD2B1: var9 = EU3(); EU3(var1,var13) */ +.long 0x84980309 /* 0024(294): LCD: idx0 = var9; idx0 != var12; idx0 += inc1 */ +.long 0xc0004003 /* 0028(297): LCDEXT: idx1 = 0x00000003; ; */ +.long 0x81c60004 /* 002C(297): LCD: idx2 = var3 + var12 + 4; idx2 once var0; idx2 += inc0 */ +.long 0x70000000 /* 0030(299): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ +.long 0x010cf04e /* 0034(299): DRD2B1: var4 = EU3(); EU3(var1,var14) */ +.long 0x70000000 /* 0038(300): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ +.long 0x014cf04f /* 003C(300): DRD2B1: var5 = EU3(); EU3(var1,var15) */ +.long 0x70000000 /* 0040(301): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ +.long 0x028cf050 /* 0044(301): DRD2B1: var10 = EU3(); EU3(var1,var16) */ +.long 0x70000000 /* 0048(302): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ +.long 0x018cf051 /* 004C(302): DRD2B1: var6 = EU3(); EU3(var1,var17) */ +.long 0x10000b90 /* 0050(303): DRD1A: var2 = *idx2; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x60000000 /* 0054(304): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ +.long 0x01ccf0a1 /* 0058(304): DRD2B1: var7 = EU3(); EU3(var2,idx1) */ +.long 0xc2988312 /* 005C(308): LCDEXT: idx1 = var5; idx1 > var12; idx1 += inc2 */ +.long 0x83490000 /* 0060(308): LCD: idx2 = var6 + var18; idx2 once var0; idx2 += inc0 */ +.long 0x00001b10 /* 0064(310): DRD1A: var6 = idx2; FN=0 init=0 WS=0 RS=0 */ +.long 0x800251a4 /* 0068(315): LCDEXT: idx1 = 0xf00091a4; ; */ +.long 0xc30104dc /* 006C(315): LCDEXT: idx2 = var6, idx3 = var2; idx2 >= var19; idx2 += inc3, idx3 += inc4 */ +.long 0x839a032d /* 0070(316): LCD: idx4 = var7; idx4 == var12; idx4 += inc5 */ +.long 0x0220c798 /* 0074(321): DRD1A: *idx1 = *idx3; FN=0 init=17 WS=0 RS=0 */ +.long 0x800251a4 /* 0078(329): LCDEXT: idx1 = 0xf00091a4; ; */ +.long 0x99198337 /* 007C(329): LCD: idx2 = idx2, idx3 = idx3; idx2 > var12; idx2 += inc6, idx3 += inc7 */ +.long 0x022ac798 /* 0080(333): DRD1A: *idx1 = *idx3; FN=0 init=17 WS=1 RS=1 */ +.long 0x800251a4 /* 0084(350): LCDEXT: idx1 = 0xf00091a4; ; */ +.long 0xc1430000 /* 0088(350): LCDEXT: idx2 = var2 + var6; idx2 once var0; idx2 += inc0 */ +.long 0x82998312 /* 008C(351): LCD: idx3 = var5; idx3 > var12; idx3 += inc2 */ +.long 0x0a2ac790 /* 0090(354): DRD1A: *idx1 = *idx2; FN=0 TFD init=17 WS=1 RS=1 */ +.long 0x81988000 /* 0094(359): LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */ +.long 0x60000002 /* 0098(361): DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=0 RS=0 */ +.long 0x0c4cfc4d /* 009C(361): DRD2B1: *idx1 = EU3(); EU3(*idx1,var13) */ +.long 0xc21883ad /* 00A0(365): LCDEXT: idx1 = var4; idx1 == var14; idx1 += inc5 */ +.long 0x80190000 /* 00A4(365): LCD: idx2 = var0; idx2 once var0; idx2 += inc0 */ +.long 0x04008460 /* 00A8(367): DRD1A: idx1 = var12; FN=0 INT init=0 WS=0 RS=0 */ +.long 0xc4052305 /* 00AC(371): LCDEXT: idx1 = var8, idx2 = var10; idx2 == var12; idx1 += inc0, idx2 += inc5 */ +.long 0x81ca0000 /* 00B0(372): LCD: idx3 = var3 + var20; idx3 once var0; idx3 += inc0 */ +.long 0x1000c718 /* 00B4(374): DRD1A: *idx1 = idx3; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x00000f18 /* 00B8(375): DRD1A: var3 = idx3; FN=0 init=0 WS=0 RS=0 */ +.long 0xc4188000 /* 00BC(378): LCDEXT: idx1 = var8; idx1 once var0; idx1 += inc0 */ +.long 0x85190312 /* 00C0(378): LCD: idx2 = var10; idx2 > var12; idx2 += inc2 */ +.long 0x10000c00 /* 00C4(380): DRD1A: var3 = var0; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x1000c400 /* 00C8(381): DRD1A: *idx1 = var0; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x00008860 /* 00CC(382): DRD1A: idx2 = var12; FN=0 init=0 WS=0 RS=0 */ +.long 0x81988000 /* 00D0(386): LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */ +.long 0x10000788 /* 00D4(388): DRD1A: var1 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */ +.long 0x60000000 /* 00D8(389): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ +.long 0x080cf04d /* 00DC(389): DRD2B1: idx0 = EU3(); EU3(var1,var13) */ +.long 0x000001f8 /* 00E0(:0): NOP */ + +.align 8 + +.globl scEthernetRecv_VarTab +scEthernetRecv_VarTab: /* Task 0 Variable Table */ +.long 0x00000000 /* var[0] */ +.long 0x00000000 /* var[1] */ +.long 0x00000000 /* var[2] */ +.long 0x00000000 /* var[3] */ +.long 0x00000000 /* var[4] */ +.long 0x00000000 /* var[5] */ +.long 0x00000000 /* var[6] */ +.long 0x00000000 /* var[7] */ +.long 0x00000000 /* var[8] */ +.long 0xf0025b00 /* var[9] */ +.long 0x00000008 /* var[10] */ +.long 0x0000000c /* var[11] */ +.long 0x80000000 /* var[12] */ +.long 0x00000000 /* var[13] */ +.long 0x10000000 /* var[14] */ +.long 0x20000000 /* var[15] */ +.long 0x00000800 /* var[16] */ +.long 0x00000001 /* var[17] */ +.long 0x00000000 /* var[18] */ +.long 0x00000000 /* var[19] */ +.long 0x00000000 /* var[20] */ +.long 0x00000000 /* var[21] */ +.long 0x00000000 /* var[22] */ +.long 0x00000000 /* var[23] */ +.long 0x00000000 /* inc[0] */ +.long 0x60000000 /* inc[1] */ +.long 0x20000004 /* inc[2] */ +.long 0x20000001 /* inc[3] */ +.long 0x80000000 /* inc[4] */ +.long 0x40000000 /* inc[5] */ +.long 0x00000000 /* inc[6] */ +.long 0x00000000 /* inc[7] */ + +.align 8 + +.globl scEthernetXmit_VarTab +scEthernetXmit_VarTab: /* Task 1 Variable Table */ +.long 0x00000000 /* var[0] */ +.long 0x00000000 /* var[1] */ +.long 0x00000000 /* var[2] */ +.long 0x00000000 /* var[3] */ +.long 0x00000000 /* var[4] */ +.long 0x00000000 /* var[5] */ +.long 0x00000000 /* var[6] */ +.long 0x00000000 /* var[7] */ +.long 0x00000000 /* var[8] */ +.long 0x00000000 /* var[9] */ +.long 0x00000000 /* var[10] */ +.long 0xf0025b00 /* var[11] */ +.long 0x00000000 /* var[12] */ +.long 0x80000000 /* var[13] */ +.long 0x10000000 /* var[14] */ +.long 0x08000000 /* var[15] */ +.long 0x20000000 /* var[16] */ +.long 0x0000ffff /* var[17] */ +.long 0xffffffff /* var[18] */ +.long 0x00000004 /* var[19] */ +.long 0x00000008 /* var[20] */ +.long 0x00000000 /* var[21] */ +.long 0x00000000 /* var[22] */ +.long 0x00000000 /* var[23] */ +.long 0x00000000 /* inc[0] */ +.long 0x60000000 /* inc[1] */ +.long 0x40000000 /* inc[2] */ +.long 0xc000fffc /* inc[3] */ +.long 0xe0000004 /* inc[4] */ +.long 0x80000000 /* inc[5] */ +.long 0x4000ffff /* inc[6] */ +.long 0xe0000001 /* inc[7] */ + +.align 8 + +.globl scEthernetRecv_FDT +scEthernetRecv_FDT: /* Task 0 Function Descriptor Table */ +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x21800000 /* and(), EU# 3 */ +.long 0x21e00000 /* or(), EU# 3 */ +.long 0x21400000 /* andn(), EU# 3 */ +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 + +.align 8 + +.globl scEthernetXmit_FDT +scEthernetXmit_FDT: /* Task 1 Function Descriptor Table */ +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x21800000 /* and(), EU# 3 */ +.long 0x21e00000 /* or(), EU# 3 */ +.long 0x21400000 /* andn(), EU# 3 */ +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 +.long 0x00000000 + + +.globl scEthernetRecv_CSave +scEthernetRecv_CSave: /* Task 0 context save space */ +.space 128, 0x0 + + +.globl scEthernetXmit_CSave +scEthernetXmit_CSave: /* Task 1 context save space */ +.space 128, 0x0 + +#endif diff --git a/arch/ppc/cpu/mpc8220/i2c.c b/arch/ppc/cpu/mpc8220/i2c.c new file mode 100644 index 0000000..76ecdf1 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/i2c.c @@ -0,0 +1,390 @@ +/* + * (C) Copyright 2004, Freescale, Inc + * TsiChung Liew, Tsi-Chung.Liew@freescale.com. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_HARD_I2C + +#include <mpc8220.h> +#include <i2c.h> + +typedef struct mpc8220_i2c { + volatile u32 adr; /* I2Cn + 0x00 */ + volatile u32 fdr; /* I2Cn + 0x04 */ + volatile u32 cr; /* I2Cn + 0x08 */ + volatile u32 sr; /* I2Cn + 0x0C */ + volatile u32 dr; /* I2Cn + 0x10 */ +} i2c_t; + +/* I2Cn control register bits */ +#define I2C_EN 0x80 +#define I2C_IEN 0x40 +#define I2C_STA 0x20 +#define I2C_TX 0x10 +#define I2C_TXAK 0x08 +#define I2C_RSTA 0x04 +#define I2C_INIT_MASK (I2C_EN | I2C_STA | I2C_TX | I2C_RSTA) + +/* I2Cn status register bits */ +#define I2C_CF 0x80 +#define I2C_AAS 0x40 +#define I2C_BB 0x20 +#define I2C_AL 0x10 +#define I2C_SRW 0x04 +#define I2C_IF 0x02 +#define I2C_RXAK 0x01 + +#define I2C_TIMEOUT 100 +#define I2C_RETRIES 1 + +struct mpc8220_i2c_tap { + int scl2tap; + int tap2tap; +}; + +static int mpc_reg_in (volatile u32 * reg); +static void mpc_reg_out (volatile u32 * reg, int val, int mask); +static int wait_for_bb (void); +static int wait_for_pin (int *status); +static int do_address (uchar chip, char rdwr_flag); +static int send_bytes (uchar chip, char *buf, int len); +static int receive_bytes (uchar chip, char *buf, int len); +static int mpc_get_fdr (int); + +static int mpc_reg_in (volatile u32 * reg) +{ + int ret; + ret = *reg >> 24; + __asm__ __volatile__ ("eieio"); + return ret; +} + +static void mpc_reg_out (volatile u32 * reg, int val, int mask) +{ + int tmp; + + if (!mask) { + *reg = val << 24; + } else { + tmp = mpc_reg_in (reg); + *reg = ((tmp & ~mask) | (val & mask)) << 24; + } + __asm__ __volatile__ ("eieio"); + + return; +} + +static int wait_for_bb (void) +{ + i2c_t *regs = (i2c_t *) MMAP_I2C; + int timeout = I2C_TIMEOUT; + int status; + + status = mpc_reg_in (®s->sr); + + while (timeout-- && (status & I2C_BB)) { +#if 1 + volatile int temp; + + mpc_reg_out (®s->cr, I2C_STA, I2C_STA); + temp = mpc_reg_in (®s->dr); + mpc_reg_out (®s->cr, 0, I2C_STA); + mpc_reg_out (®s->cr, 0, 0); + mpc_reg_out (®s->cr, I2C_EN, 0); +#endif + udelay (1000); + status = mpc_reg_in (®s->sr); + } + + return (status & I2C_BB); +} + +static int wait_for_pin (int *status) +{ + i2c_t *regs = (i2c_t *) MMAP_I2C; + int timeout = I2C_TIMEOUT; + + *status = mpc_reg_in (®s->sr); + + while (timeout-- && !(*status & I2C_IF)) { + udelay (1000); + *status = mpc_reg_in (®s->sr); + } + + if (!(*status & I2C_IF)) { + return -1; + } + + mpc_reg_out (®s->sr, 0, I2C_IF); + return 0; +} + +static int do_address (uchar chip, char rdwr_flag) +{ + i2c_t *regs = (i2c_t *) MMAP_I2C; + int status; + + chip <<= 1; + + if (rdwr_flag) + chip |= 1; + + mpc_reg_out (®s->cr, I2C_TX, I2C_TX); + mpc_reg_out (®s->dr, chip, 0); + + if (wait_for_pin (&status)) + return -2; + if (status & I2C_RXAK) + return -3; + return 0; +} + +static int send_bytes (uchar chip, char *buf, int len) +{ + i2c_t *regs = (i2c_t *) MMAP_I2C; + int wrcount; + int status; + + for (wrcount = 0; wrcount < len; ++wrcount) { + + mpc_reg_out (®s->dr, buf[wrcount], 0); + + if (wait_for_pin (&status)) + break; + + if (status & I2C_RXAK) + break; + + } + + return !(wrcount == len); + return 0; +} + +static int receive_bytes (uchar chip, char *buf, int len) +{ + i2c_t *regs = (i2c_t *) MMAP_I2C; + int dummy = 1; + int rdcount = 0; + int status; + int i; + + mpc_reg_out (®s->cr, 0, I2C_TX); + + for (i = 0; i < len; ++i) { + buf[rdcount] = mpc_reg_in (®s->dr); + + if (dummy) + dummy = 0; + else + rdcount++; + + if (wait_for_pin (&status)) + return -4; + } + + mpc_reg_out (®s->cr, I2C_TXAK, I2C_TXAK); + buf[rdcount++] = mpc_reg_in (®s->dr); + + if (wait_for_pin (&status)) + return -5; + + mpc_reg_out (®s->cr, 0, I2C_TXAK); + return 0; +} + +/**************** I2C API ****************/ + +void i2c_init (int speed, int saddr) +{ + i2c_t *regs = (i2c_t *) MMAP_I2C; + + mpc_reg_out (®s->cr, 0, 0); + mpc_reg_out (®s->adr, saddr << 1, 0); + + /* Set clock + */ + mpc_reg_out (®s->fdr, mpc_get_fdr (speed), 0); + + /* Enable module + */ + mpc_reg_out (®s->cr, I2C_EN, I2C_INIT_MASK); + mpc_reg_out (®s->sr, 0, I2C_IF); + return; +} + +static int mpc_get_fdr (int speed) +{ + static int fdr = -1; + + if (fdr == -1) { + ulong best_speed = 0; + ulong divider; + ulong ipb, scl; + ulong bestmatch = 0xffffffffUL; + int best_i = 0, best_j = 0, i, j; + int SCL_Tap[] = { 9, 10, 12, 15, 5, 6, 7, 8 }; + struct mpc8220_i2c_tap scltap[] = { + {4, 1}, + {4, 2}, + {6, 4}, + {6, 8}, + {14, 16}, + {30, 32}, + {62, 64}, + {126, 128} + }; + + ipb = gd->bus_clk; + for (i = 7; i >= 0; i--) { + for (j = 7; j >= 0; j--) { + scl = 2 * (scltap[j].scl2tap + + (SCL_Tap[i] - + 1) * scltap[j].tap2tap + 2); + if (ipb <= speed * scl) { + if ((speed * scl - ipb) < bestmatch) { + bestmatch = speed * scl - ipb; + best_i = i; + best_j = j; + best_speed = ipb / scl; + } + } + } + } + divider = (best_i & 3) | ((best_i & 4) << 3) | (best_j << 2); + if (gd->flags & GD_FLG_RELOC) { + fdr = divider; + } else { + printf ("%ld kHz, ", best_speed / 1000); + return divider; + } + } + + return fdr; +} + +int i2c_probe (uchar chip) +{ + i2c_t *regs = (i2c_t *) MMAP_I2C; + int i; + + for (i = 0; i < I2C_RETRIES; i++) { + mpc_reg_out (®s->cr, I2C_STA, I2C_STA); + + if (!do_address (chip, 0)) { + mpc_reg_out (®s->cr, 0, I2C_STA); + break; + } + + mpc_reg_out (®s->cr, 0, I2C_STA); + udelay (50); + } + + return (i == I2C_RETRIES); +} + +int i2c_read (uchar chip, uint addr, int alen, uchar * buf, int len) +{ + uchar xaddr[4]; + i2c_t *regs = (i2c_t *) MMAP_I2C; + int ret = -1; + + xaddr[0] = (addr >> 24) & 0xFF; + xaddr[1] = (addr >> 16) & 0xFF; + xaddr[2] = (addr >> 8) & 0xFF; + xaddr[3] = addr & 0xFF; + + if (wait_for_bb ()) { + printf ("i2c_read: bus is busy\n"); + goto Done; + } + + mpc_reg_out (®s->cr, I2C_STA, I2C_STA); + if (do_address (chip, 0)) { + printf ("i2c_read: failed to address chip\n"); + goto Done; + } + + if (send_bytes (chip, (char *)&xaddr[4 - alen], alen)) { + printf ("i2c_read: send_bytes failed\n"); + goto Done; + } + + mpc_reg_out (®s->cr, I2C_RSTA, I2C_RSTA); + if (do_address (chip, 1)) { + printf ("i2c_read: failed to address chip\n"); + goto Done; + } + + if (receive_bytes (chip, (char *)buf, len)) { + printf ("i2c_read: receive_bytes failed\n"); + goto Done; + } + + ret = 0; + Done: + mpc_reg_out (®s->cr, 0, I2C_STA); + return ret; +} + +int i2c_write (uchar chip, uint addr, int alen, uchar * buf, int len) +{ + uchar xaddr[4]; + i2c_t *regs = (i2c_t *) MMAP_I2C; + int ret = -1; + + xaddr[0] = (addr >> 24) & 0xFF; + xaddr[1] = (addr >> 16) & 0xFF; + xaddr[2] = (addr >> 8) & 0xFF; + xaddr[3] = addr & 0xFF; + + if (wait_for_bb ()) { + printf ("i2c_write: bus is busy\n"); + goto Done; + } + + mpc_reg_out (®s->cr, I2C_STA, I2C_STA); + if (do_address (chip, 0)) { + printf ("i2c_write: failed to address chip\n"); + goto Done; + } + + if (send_bytes (chip, (char *)&xaddr[4 - alen], alen)) { + printf ("i2c_write: send_bytes failed\n"); + goto Done; + } + + if (send_bytes (chip, (char *)buf, len)) { + printf ("i2c_write: send_bytes failed\n"); + goto Done; + } + + ret = 0; + Done: + mpc_reg_out (®s->cr, 0, I2C_STA); + return ret; +} + +#endif /* CONFIG_HARD_I2C */ diff --git a/arch/ppc/cpu/mpc8220/i2cCore.c b/arch/ppc/cpu/mpc8220/i2cCore.c new file mode 100644 index 0000000..b89ad03 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/i2cCore.c @@ -0,0 +1,627 @@ +/* I2cCore.c - MPC8220 PPC I2C Library */ + +/* Copyright 2004 Freescale Semiconductor, Inc. */ + +/* +modification history +-------------------- +01c,29jun04,tcl 1.3 removed CR. Added two bytes offset support. +01b,19jan04,tcl 1.2 removed i2cMsDelay and sysDecGet. renamed i2cMsDelay + back to sysMsDelay +01a,19jan04,tcl 1.1 created and seperated from i2c.c +*/ + +/* +DESCRIPTION +This file contain I2C low level handling library functions +*/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <vxWorks.h> +#include <sysLib.h> +#include <iosLib.h> +#include <logLib.h> +#include <tickLib.h> + +/* BSP Includes */ +#include "config.h" +#include "mpc8220.h" +#include "i2cCore.h" + +#ifdef DEBUG_I2CCORE +int I2CCDbg = 0; +#endif + +#define ABS(x) ((x < 0)? -x : x) + +char *I2CERR[16] = { + "Transfer in Progress\n", /* 0 */ + "Transfer complete\n", + "Not Addressed\n", /* 2 */ + "Addressed as a slave\n", + "Bus is Idle\n", /* 4 */ + "Bus is busy\n", + "Arbitration Lost\n", /* 6 */ + "Arbitration on Track\n", + "Slave receive, master writing to slave\n", /* 8 */ + "Slave transmit, master reading from slave\n", + "Interrupt is pending\n", /* 10 */ + "Interrupt complete\n", + "Acknowledge received\n", /* 12 */ + "No acknowledge received\n", + "Unknown status\n", /* 14 */ + "\n" +}; + +/****************************************************************************** + * + * chk_status - Check I2C status bit + * + * RETURNS: OK, or ERROR if the bit encounter + * + */ + +STATUS chk_status (PSI2C pi2c, UINT8 sta_bit, UINT8 truefalse) +{ + int i, status = 0; + + for (i = 0; i < I2C_POLL_COUNT; i++) { + if ((pi2c->sr & sta_bit) == (truefalse ? sta_bit : 0)) + return (OK); + } + + I2CCDBG (L2, ("--- sr %x stabit %x truefalse %d\n", + pi2c->sr, sta_bit, truefalse, 0, 0, 0)); + + if (i == I2C_POLL_COUNT) { + switch (sta_bit) { + case I2C_STA_CF: + status = 0; + break; + case I2C_STA_AAS: + status = 2; + break; + case I2C_STA_BB: + status = 4; + break; + case I2C_STA_AL: + status = 6; + break; + case I2C_STA_SRW: + status = 8; + break; + case I2C_STA_IF: + status = 10; + break; + case I2C_STA_RXAK: + status = 12; + break; + default: + status = 14; + break; + } + + if (!truefalse) + status++; + + I2CCDBG (NO, ("--- status %d\n", status, 0, 0, 0, 0, 0)); + I2CCDBG (NO, (I2CERR[status], 0, 0, 0, 0, 0, 0)); + } + + return (ERROR); +} + +/****************************************************************************** + * + * I2C Enable - Enable the I2C Controller + * + */ +STATUS i2c_enable (SI2C * pi2c, PI2CSET pi2cSet) +{ + int fdr = pi2cSet->bit_rate; + UINT8 adr = pi2cSet->i2c_adr; + + I2CCDBG (L2, ("i2c_enable fdr %d adr %x\n", fdr, adr, 0, 0, 0, 0)); + + i2c_clear (pi2c); /* Clear FDR, ADR, SR and CR reg */ + + SetI2cFDR (pi2c, fdr); /* Frequency */ + pi2c->adr = adr; + + pi2c->cr = I2C_CTL_EN; /* Set Enable */ + + /* + The I2C bus should be in Idle state. If the bus is busy, + clear the STA bit in control register + */ + if (chk_status (pi2c, I2C_STA_BB, 0) != OK) { + if ((pi2c->cr & I2C_CTL_STA) == I2C_CTL_STA) + pi2c->cr &= ~I2C_CTL_STA; + + /* Check again if it is still busy, return error if found */ + if (chk_status (pi2c, I2C_STA_BB, 1) == OK) + return ERROR; + } + + return (OK); +} + +/****************************************************************************** + * + * I2C Disable - Disable the I2C Controller + * + */ +STATUS i2c_disable (PSI2C pi2c) +{ + i2c_clear (pi2c); + + pi2c->cr &= I2C_CTL_EN; /* Disable I2c */ + + if ((pi2c->cr & I2C_CTL_STA) == I2C_CTL_STA) + pi2c->cr &= ~I2C_CTL_STA; + + if (chk_status (pi2c, I2C_STA_BB, 0) != OK) + return ERROR; + + return (OK); +} + +/****************************************************************************** + * + * I2C Clear - Clear the I2C Controller + * + */ +STATUS i2c_clear (PSI2C pi2c) +{ + pi2c->adr = 0; + pi2c->fdr = 0; + pi2c->cr = 0; + pi2c->sr = 0; + + return (OK); +} + + +STATUS i2c_start (PSI2C pi2c, PI2CSET pi2cSet) +{ +#ifdef TWOBYTES + UINT16 ByteOffset = pi2cSet->str_adr; +#else + UINT8 ByteOffset = pi2cSet->str_adr; +#endif +#if 1 + UINT8 tmp = 0; +#endif + UINT8 Addr = pi2cSet->slv_adr; + + pi2c->cr |= I2C_CTL_STA; /* Generate start signal */ + + if (chk_status (pi2c, I2C_STA_BB, 1) != OK) + return ERROR; + + /* Write slave address */ + if (i2c_writebyte (pi2c, &Addr) != OK) { + i2c_stop (pi2c); /* Disable I2c */ + return ERROR; + } +#ifdef TWOBYTES +# if 0 + /* Issue the offset to start */ + if (i2c_write2byte (pi2c, &ByteOffset) != OK) { + i2c_stop (pi2c); /* Disable I2c */ + return ERROR; + } +#endif + tmp = (ByteOffset >> 8) & 0xff; + if (i2c_writebyte (pi2c, &tmp) != OK) { + i2c_stop (pi2c); /* Disable I2c */ + return ERROR; + } + tmp = ByteOffset & 0xff; + if (i2c_writebyte (pi2c, &tmp) != OK) { + i2c_stop (pi2c); /* Disable I2c */ + return ERROR; + } +#else + if (i2c_writebyte (pi2c, &ByteOffset) != OK) { + i2c_stop (pi2c); /* Disable I2c */ + return ERROR; + } +#endif + + return (OK); +} + +STATUS i2c_stop (PSI2C pi2c) +{ + pi2c->cr &= ~I2C_CTL_STA; /* Generate stop signal */ + if (chk_status (pi2c, I2C_STA_BB, 0) != OK) + return ERROR; + + return (OK); +} + +/****************************************************************************** + * + * Read Len bytes to the location pointed to by *Data from the device + * with address Addr. + */ +int i2c_readblock (SI2C * pi2c, PI2CSET pi2cSet, UINT8 * Data) +{ + int i = 0; + UINT8 Tmp; + +/* UINT8 ByteOffset = pi2cSet->str_adr; not used? */ + UINT8 Addr = pi2cSet->slv_adr; + int Length = pi2cSet->xfer_size; + + I2CCDBG (L1, ("i2c_readblock addr %x data 0x%08x len %d offset %d\n", + Addr, (int) Data, Length, ByteOffset, 0, 0)); + + if (pi2c->sr & I2C_STA_AL) { /* Check if Arbitration lost */ + I2CCDBG (FN, ("Arbitration lost\n", 0, 0, 0, 0, 0, 0)); + pi2c->sr &= ~I2C_STA_AL; /* Clear Arbitration status bit */ + return ERROR; + } + + pi2c->cr |= I2C_CTL_TX; /* Enable the I2c for TX, Ack */ + + if (i2c_start (pi2c, pi2cSet) == ERROR) + return ERROR; + + pi2c->cr |= I2C_CTL_RSTA; /* Repeat Start */ + + Tmp = Addr | 1; + + if (i2c_writebyte (pi2c, &Tmp) != OK) { + i2c_stop (pi2c); /* Disable I2c */ + return ERROR; + } + + if (((pi2c->sr & 0x07) == 0x07) || (pi2c->sr & 0x01)) + return ERROR; + + pi2c->cr &= ~I2C_CTL_TX; /* Set receive mode */ + + if (((pi2c->sr & 0x07) == 0x07) || (pi2c->sr & 0x01)) + return ERROR; + + /* Dummy Read */ + if (i2c_readbyte (pi2c, &Tmp, &i) != OK) { + i2c_stop (pi2c); /* Disable I2c */ + return ERROR; + } + + i = 0; + while (Length) { + if (Length == 2) + pi2c->cr |= I2C_CTL_TXAK; + + if (Length == 1) + pi2c->cr &= ~I2C_CTL_STA; + + if (i2c_readbyte (pi2c, Data, &Length) != OK) { + return i2c_stop (pi2c); + } + i++; + Length--; + Data++; + } + + if (i2c_stop (pi2c) == ERROR) + return ERROR; + + return i; +} + +STATUS i2c_writeblock (SI2C * pi2c, PI2CSET pi2cSet, UINT8 * Data) +{ + int Length = pi2cSet->xfer_size; + +#ifdef TWOBYTES + UINT16 ByteOffset = pi2cSet->str_adr; +#else + UINT8 ByteOffset = pi2cSet->str_adr; +#endif + int j, k; + + I2CCDBG (L2, ("i2c_writeblock\n", 0, 0, 0, 0, 0, 0)); + + if (pi2c->sr & I2C_STA_AL) { + /* Check if arbitration lost */ + I2CCDBG (L2, ("Arbitration lost\n", 0, 0, 0, 0, 0, 0)); + pi2c->sr &= ~I2C_STA_AL; /* Clear the condition */ + return ERROR; + } + + pi2c->cr |= I2C_CTL_TX; /* Enable the I2c for TX, Ack */ + + /* Do the not even offset first */ + if ((ByteOffset % 8) != 0) { + int remain; + + if (Length > 8) { + remain = 8 - (ByteOffset % 8); + Length -= remain; + + pi2cSet->str_adr = ByteOffset; + + if (i2c_start (pi2c, pi2cSet) == ERROR) + return ERROR; + + for (j = ByteOffset; j < remain; j++) { + if (i2c_writebyte (pi2c, Data++) != OK) + return ERROR; + } + + if (i2c_stop (pi2c) == ERROR) + return ERROR; + + sysMsDelay (32); + + /* Update the new ByteOffset */ + ByteOffset += remain; + } + } + + for (j = ByteOffset, k = 0; j < (Length + ByteOffset); j++) { + if ((j % 8) == 0) { + pi2cSet->str_adr = j; + if (i2c_start (pi2c, pi2cSet) == ERROR) + return ERROR; + } + + k++; + + if (i2c_writebyte (pi2c, Data++) != OK) + return ERROR; + + if ((j == (Length - 1)) || ((k % 8) == 0)) { + if (i2c_stop (pi2c) == ERROR) + return ERROR; + + sysMsDelay (50); + } + + } + + return k; +} + +STATUS i2c_readbyte (SI2C * pi2c, UINT8 * readb, int *index) +{ + pi2c->sr &= ~I2C_STA_IF; /* Clear Interrupt Bit */ + *readb = pi2c->dr; /* Read a byte */ + + /* + Set I2C_CTRL_TXAK will cause Transfer pending and + set I2C_CTRL_STA will cause Interrupt pending + */ + if (*index != 2) { + if (chk_status (pi2c, I2C_STA_CF, 1) != OK) /* Transfer not complete? */ + return ERROR; + } + + if (*index != 1) { + if (chk_status (pi2c, I2C_STA_IF, 1) != OK) + return ERROR; + } + + return (OK); +} + + +STATUS i2c_writebyte (SI2C * pi2c, UINT8 * writeb) +{ + pi2c->sr &= ~I2C_STA_IF; /* Clear Interrupt */ + pi2c->dr = *writeb; /* Write a byte */ + + if (chk_status (pi2c, I2C_STA_CF, 1) != OK) /* Transfer not complete? */ + return ERROR; + + if (chk_status (pi2c, I2C_STA_IF, 1) != OK) + return ERROR; + + return OK; +} + +STATUS i2c_write2byte (SI2C * pi2c, UINT16 * writeb) +{ + UINT8 data; + + data = (UINT8) ((*writeb >> 8) & 0xff); + if (i2c_writebyte (pi2c, &data) != OK) + return ERROR; + data = (UINT8) (*writeb & 0xff); + if (i2c_writebyte (pi2c, &data) != OK) + return ERROR; + return OK; +} + +/* FDR table base on 33MHz - more detail please refer to Odini2c_dividers.xls +FDR FDR scl sda scl2tap2 +510 432 tap tap tap tap scl_per sda_hold I2C Freq 0 1 2 3 4 5 +000 000 9 3 4 1 28 Clocks 9 Clocks 1190 KHz 0 0 0 0 0 0 +000 001 9 3 4 2 44 Clocks 11 Clocks 758 KHz 0 0 1 0 0 0 +000 010 9 3 6 4 80 Clocks 17 Clocks 417 KHz 0 0 0 1 0 0 +000 011 9 3 6 8 144 Clocks 25 Clocks 231 KHz 0 0 1 1 0 0 +000 100 9 3 14 16 288 Clocks 49 Clocks 116 KHz 0 0 0 0 1 0 +000 101 9 3 30 32 576 Clocks 97 Clocks 58 KHz 0 0 1 0 1 0 +000 110 9 3 62 64 1152 Clocks 193 Clocks 29 KHz 0 0 0 1 1 0 +000 111 9 3 126 128 2304 Clocks 385 Clocks 14 KHz 0 0 1 1 1 0 +001 000 10 3 4 1 30 Clocks 9 Clocks 1111 KHz1 0 0 0 0 0 +001 001 10 3 4 2 48 Clocks 11 Clocks 694 KHz 1 0 1 0 0 0 +001 010 10 3 6 4 88 Clocks 17 Clocks 379 KHz 1 0 0 1 0 0 +001 011 10 3 6 8 160 Clocks 25 Clocks 208 KHz 1 0 1 1 0 0 +001 100 10 3 14 16 320 Clocks 49 Clocks 104 KHz 1 0 0 0 1 0 +001 101 10 3 30 32 640 Clocks 97 Clocks 52 KHz 1 0 1 0 1 0 +001 110 10 3 62 64 1280 Clocks 193 Clocks 26 KHz 1 0 0 1 1 0 +001 111 10 3 126 128 2560 Clocks 385 Clocks 13 KHz 1 0 1 1 1 0 +010 000 12 4 4 1 34 Clocks 10 Clocks 980 KHz 0 1 0 0 0 0 +010 001 12 4 4 2 56 Clocks 13 Clocks 595 KHz 0 1 1 0 0 0 +010 010 12 4 6 4 104 Clocks 21 Clocks 321 KHz 0 1 0 1 0 0 +010 011 12 4 6 8 192 Clocks 33 Clocks 174 KHz 0 1 1 1 0 0 +010 100 12 4 14 16 384 Clocks 65 Clocks 87 KHz 0 1 0 0 1 0 +010 101 12 4 30 32 768 Clocks 129 Clocks 43 KHz 0 1 1 0 1 0 +010 110 12 4 62 64 1536 Clocks 257 Clocks 22 KHz 0 1 0 1 1 0 +010 111 12 4 126 128 3072 Clocks 513 Clocks 11 KHz 0 1 1 1 1 0 +011 000 15 4 4 1 40 Clocks 10 Clocks 833 KHz 1 1 0 0 0 0 +011 001 15 4 4 2 68 Clocks 13 Clocks 490 KHz 1 1 1 0 0 0 +011 010 15 4 6 4 128 Clocks 21 Clocks 260 KHz 1 1 0 1 0 0 +011 011 15 4 6 8 240 Clocks 33 Clocks 139 KHz 1 1 1 1 0 0 +011 100 15 4 14 16 480 Clocks 65 Clocks 69 KHz 1 1 0 0 1 0 +011 101 15 4 30 32 960 Clocks 129 Clocks 35 KHz 1 1 1 0 1 0 +011 110 15 4 62 64 1920 Clocks 257 Clocks 17 KHz 1 1 0 1 1 0 +011 111 15 4 126 128 3840 Clocks 513 Clocks 9 KHz 1 1 1 1 1 0 +100 000 5 1 4 1 20 Clocks 7 Clocks 1667 KHz 0 0 0 0 0 1 +100 001 5 1 4 2 28 Clocks 7 Clocks 1190 KHz 0 0 1 0 0 1 +100 010 5 1 6 4 48 Clocks 9 Clocks 694 KHz 0 0 0 1 0 1 +100 011 5 1 6 8 80 Clocks 9 Clocks 417 KHz 0 0 1 1 0 1 +100 100 5 1 14 16 160 Clocks 17 Clocks 208 KHz 0 0 0 0 1 1 +100 101 5 1 30 32 320 Clocks 33 Clocks 104 KHz 0 0 1 0 1 1 +100 110 5 1 62 64 640 Clocks 65 Clocks 52 KHz 0 0 0 1 1 1 +100 111 5 1 126 128 1280 Clocks 129 Clocks 26 KHz 0 0 1 1 1 1 +101 000 6 1 4 1 22 Clocks 7 Clocks 1515 KHz 1 0 0 0 0 1 +101 001 6 1 4 2 32 Clocks 7 Clocks 1042 KHz 1 0 1 0 0 1 +101 010 6 1 6 4 56 Clocks 9 Clocks 595 KHz 1 0 0 1 0 1 +101 011 6 1 6 8 96 Clocks 9 Clocks 347 KHz 1 0 1 1 0 1 +101 100 6 1 14 16 192 Clocks 17 Clocks 174 KHz 1 0 0 0 1 1 +101 101 6 1 30 32 384 Clocks 33 Clocks 87 KHz 1 0 1 0 1 1 +101 110 6 1 62 64 768 Clocks 65 Clocks 43 KHz 1 0 0 1 1 1 +101 111 6 1 126 128 1536 Clocks 129 Clocks 22 KHz 1 0 1 1 1 1 +110 000 7 2 4 1 24 Clocks 8 Clocks 1389 KHz 0 1 0 0 0 1 +110 001 7 2 4 2 36 Clocks 9 Clocks 926 KHz 0 1 1 0 0 1 +110 010 7 2 6 4 64 Clocks 13 Clocks 521 KHz 0 1 0 1 0 1 +110 011 7 2 6 8 112 Clocks 17 Clocks 298 KHz 0 1 1 1 0 1 +110 100 7 2 14 16 224 Clocks 33 Clocks 149 KHz 0 1 0 0 1 1 +110 101 7 2 30 32 448 Clocks 65 Clocks 74 KHz 0 1 1 0 1 1 +110 110 7 2 62 64 896 Clocks 129 Clocks 37 KHz 0 1 0 1 1 1 +110 111 7 2 126 128 1792 Clocks 257 Clocks 19 KHz 0 1 1 1 1 1 +111 000 8 2 4 1 26 Clocks 8 Clocks 1282 KHz 1 1 0 0 0 1 +111 001 8 2 4 2 40 Clocks 9 Clocks 833 KHz 1 1 1 0 0 1 +111 010 8 2 6 4 72 Clocks 13 Clocks 463 KHz 1 1 0 1 0 1 +111 011 8 2 6 8 128 Clocks 17 Clocks 260 KHz 1 1 1 1 0 1 +111 100 8 2 14 16 256 Clocks 33 Clocks 130 KHz 1 1 0 0 1 1 +111 101 8 2 30 32 512 Clocks 65 Clocks 65 KHz 1 1 1 0 1 1 +111 110 8 2 62 64 1024 Clocks 129 Clocks 33 KHz 1 1 0 1 1 1 +111 111 8 2 126 128 2048 Clocks 257 Clocks 16 KHz 1 1 1 1 1 1 +*/ +STATUS SetI2cFDR (PSI2C pi2cRegs, int bitrate) +{ +/* Constants */ + const UINT8 div_hold[8][3] = { {9, 3}, {10, 3}, + {12, 4}, {15, 4}, + {5, 1}, {6, 1}, + {7, 2}, {8, 2} + }; + + const UINT8 scl_tap[8][2] = { {4, 1}, {4, 2}, + {6, 4}, {6, 8}, + {14, 16}, {30, 32}, + {62, 64}, {126, 128} + }; + + UINT8 mfdr_bits; + + int i = 0; + int j = 0; + + int Diff, min; + int WhichFreq, iRec, jRec; + int SCL_Period; + int SCL_Hold; + int I2C_Freq; + + I2CCDBG (L2, ("Entering getBitRate: bitrate %d pi2cRegs 0x%08x\n", + bitrate, (int) pi2cRegs, 0, 0, 0, 0)); + + if (bitrate < 0) { + I2CCDBG (NO, ("Invalid bitrate\n", 0, 0, 0, 0, 0, 0)); + return ERROR; + } + + /* Initialize */ + mfdr_bits = 0; + min = 0x7fffffff; + WhichFreq = iRec = jRec = 0; + + for (i = 0; i < 8; i++) { + for (j = 0; j < 8; j++) { + /* SCL Period = 2 * (scl2tap + [(SCL_Tap - 1) * tap2tap] + 2) + * SCL Hold = scl2tap + ((SDA_Tap - 1) * tap2tap) + 3 + * Bit Rate (I2C Freq) = System Freq / SCL Period + */ + SCL_Period = + 2 * (scl_tap[i][0] + + ((div_hold[j][0] - 1) * scl_tap[i][1]) + + 2); + + /* Now get the I2C Freq */ + I2C_Freq = DEV_CLOCK_FREQ / SCL_Period; + + /* Take equal or slower */ + if (I2C_Freq > bitrate) + continue; + + /* Take the differences */ + Diff = I2C_Freq - bitrate; + + Diff = ABS (Diff); + + /* Find the closer value */ + if (Diff < min) { + min = Diff; + WhichFreq = I2C_Freq; + iRec = i; + jRec = j; + } + + I2CCDBG (L2, + ("--- (%d,%d) I2C_Freq %d minDiff %d min %d\n", + i, j, I2C_Freq, Diff, min, 0)); + } + } + + SCL_Period = + 2 * (scl_tap[iRec][0] + + ((div_hold[jRec][0] - 1) * scl_tap[iRec][1]) + 2); + + I2CCDBG (L2, ("\nmin %d WhichFreq %d iRec %d jRec %d\n", + min, WhichFreq, iRec, jRec, 0, 0)); + I2CCDBG (L2, ("--- scl2tap %d SCL_Tap %d tap2tap %d\n", + scl_tap[iRec][0], div_hold[jRec][0], scl_tap[iRec][1], + 0, 0, 0)); + + /* This may no require */ + SCL_Hold = + scl_tap[iRec][0] + + ((div_hold[jRec][1] - 1) * scl_tap[iRec][1]) + 3; + I2CCDBG (L2, + ("--- SCL_Period %d SCL_Hold %d\n", SCL_Period, SCL_Hold, 0, + 0, 0, 0)); + + I2CCDBG (L2, ("--- mfdr_bits %x\n", mfdr_bits, 0, 0, 0, 0, 0)); + + /* FDR 4,3,2 */ + if ((iRec & 1) == 1) + mfdr_bits |= 0x04; /* FDR 2 */ + if ((iRec & 2) == 2) + mfdr_bits |= 0x08; /* FDR 3 */ + if ((iRec & 4) == 4) + mfdr_bits |= 0x10; /* FDR 4 */ + /* FDR 5,1,0 */ + if ((jRec & 1) == 1) + mfdr_bits |= 0x01; /* FDR 0 */ + if ((jRec & 2) == 2) + mfdr_bits |= 0x02; /* FDR 1 */ + if ((jRec & 4) == 4) + mfdr_bits |= 0x20; /* FDR 5 */ + + I2CCDBG (L2, ("--- mfdr_bits %x\n", mfdr_bits, 0, 0, 0, 0, 0)); + + pi2cRegs->fdr = mfdr_bits; + + return OK; +} diff --git a/arch/ppc/cpu/mpc8220/i2cCore.h b/arch/ppc/cpu/mpc8220/i2cCore.h new file mode 100644 index 0000000..72783fd --- /dev/null +++ b/arch/ppc/cpu/mpc8220/i2cCore.h @@ -0,0 +1,103 @@ +/* + * i2cCore.h + * + * Prototypes, etc. for the Motorola MPC8220 + * embedded cpu chips + * + * 2004 (c) Freescale, Inc. + * Author: TsiChung Liew <Tsi-Chung.Liew@freescale.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#ifndef __INCi2ccoreh +#define __INCi2ccoreh +#ifndef __ASSEMBLY__ +/* device types */ +#define I2C_DEVICE_TYPE_EEPROM 0 +#define I2C_EEPROM_ADRS 0xa0 +#define I2C_CTRL_ADRS I2C_EEPROM_ADRS +#define EEPROM_ADDR0 0xA2 /* on Dimm SPD eeprom */ +#define EEPROM_ADDR1 0xA4 /* on Board SPD eeprom */ +#define EEPROM_ADDR2 0xD2 /* non-standard eeprom - clock generator */ +/* Control Register */ +#define I2C_CTL_EN 0x80 /* I2C Enable */ +#define I2C_CTL_IEN 0x40 /* I2C Interrupt Enable */ +#define I2C_CTL_STA 0x20 /* Master/Slave Mode select */ +#define I2C_CTL_TX 0x10 /* Transmit/Receive Mode Select */ +#define I2C_CTL_TXAK 0x08 /* Transmit Acknowledge Enable */ +#define I2C_CTL_RSTA 0x04 /* Repeat Start */ +/* Status Register */ +#define I2C_STA_CF 0x80 /* Data Transfer */ +#define I2C_STA_AAS 0x40 /* Adressed As Slave */ +#define I2C_STA_BB 0x20 /* Bus Busy */ +#define I2C_STA_AL 0x10 /* Arbitration Lost */ +#define I2C_STA_SRW 0x04 /* Slave Read/Write */ +#define I2C_STA_IF 0x02 /* I2C Interrupt */ +#define I2C_STA_RXAK 0x01 /* Receive Acknowledge */ +/* Interrupt Contol Register */ +#define I2C_INT_BNBE2 0x80 /* Bus Not Busy Enable 2 */ +#define I2C_INT_TE2 0x40 /* Transmit Enable 2 */ +#define I2C_INT_RE2 0x20 /* Receive Enable 2 */ +#define I2C_INT_IE2 0x10 /* Interrupt Enable 2 */ +#define I2C_INT_BNBE1 0x08 /* Bus Not Busy Enable 1 */ +#define I2C_INT_TE1 0x04 /* Transmit Enable 1 */ +#define I2C_INT_RE1 0x02 /* Receive Enable 1 */ +#define I2C_INT_IE1 0x01 /* Interrupt Enable 1 */ +#define I2C_POLL_COUNT 0x100000 +#define I2C_ENABLE 0x00000001 +#define I2C_DISABLE 0x00000002 +#define I2C_START 0x00000004 +#define I2C_REPSTART 0x00000008 +#define I2C_STOP 0x00000010 +#define I2C_BITRATE 0x00000020 +#define I2C_SLAVEADR 0x00000040 +#define I2C_STARTADR 0x00000080 +#undef TWOBYTES +typedef struct i2c_settings { + /* Device settings */ + int bit_rate; /* Device bit rate */ + u8 i2c_adr; /* I2C address */ + u8 slv_adr; /* Slave address */ +#ifdef TWOBYTES + u16 str_adr; /* Start address */ +#else + u8 str_adr; /* Start address */ +#endif + int xfer_size; /* Transfer Size */ + + int bI2c_en; /* Enable or Disable */ + int cmdFlag; /* I2c Command Flags */ +} i2cset_t; + +/* +int check_status(PSI2C pi2c, u8 sta_bit, u8 truefalse); +int i2c_enable(PSI2C pi2c, PI2CSET pi2cSet); +int i2c_disable(PSI2C pi2c); +int i2c_start(PSI2C pi2c, PI2CSET pi2cSet); +int i2c_stop(PSI2C pi2c); +int i2c_clear(PSI2C pi2c); +int i2c_readblock (PSI2C pi2c, PI2CSET pi2cSet, u8 *Data); +int i2c_writeblock (PSI2C pi2c, PI2CSET pi2cSet, u8 *Data); +int i2c_readbyte(PSI2C pi2c, u8 *readb, int *index); +int i2c_writebyte(PSI2C pi2c, u8 *writeb); +int SetI2cFDR( PSI2C pi2cRegs, int bitrate ); +*/ +#endif /* __ASSEMBLY__ */ + +#endif /* __INCi2ccoreh */ diff --git a/arch/ppc/cpu/mpc8220/interrupts.c b/arch/ppc/cpu/mpc8220/interrupts.c new file mode 100644 index 0000000..78e9917 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/interrupts.c @@ -0,0 +1,80 @@ +/* + * (C) Copyright -2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2001 + * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * interrupts.c - just enough support for the decrementer/timer + */ + +#include <common.h> +#include <asm/processor.h> +#include <command.h> + +int interrupt_init_cpu (ulong * decrementer_count) +{ + *decrementer_count = get_tbclk () / CONFIG_SYS_HZ; + + return (0); +} + +/****************************************************************************/ + +/* + * Handle external interrupts + */ +void external_interrupt (struct pt_regs *regs) +{ + puts ("external_interrupt (oops!)\n"); +} + +void timer_interrupt_cpu (struct pt_regs *regs) +{ + /* nothing to do here */ + return; +} + +/****************************************************************************/ + +/* + * Install and free a interrupt handler. + */ + +void irq_install_handler (int vec, interrupt_handler_t * handler, void *arg) +{ + +} + +void irq_free_handler (int vec) +{ + +} + +/****************************************************************************/ + +void +do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[]) +{ + puts ("IRQ related functions are unimplemented currently.\n"); +} diff --git a/arch/ppc/cpu/mpc8220/io.S b/arch/ppc/cpu/mpc8220/io.S new file mode 100644 index 0000000..5ecdf55 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/io.S @@ -0,0 +1,128 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Andreas Heppel <aheppel@sysgo.de> + * Copyright (C) 2003 Wolfgang Denk <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <ppc_asm.tmpl> + +/* ------------------------------------------------------------------------------- */ +/* Function: in8 */ +/* Description: Input 8 bits */ +/* ------------------------------------------------------------------------------- */ + .globl in8 +in8: + lbz r3,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: in16 */ +/* Description: Input 16 bits */ +/* ------------------------------------------------------------------------------- */ + .globl in16 +in16: + lhz r3,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: in16r */ +/* Description: Input 16 bits and byte reverse */ +/* ------------------------------------------------------------------------------- */ + .globl in16r +in16r: + lhbrx r3,0,r3 + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: in32 */ +/* Description: Input 32 bits */ +/* ------------------------------------------------------------------------------- */ + .globl in32 +in32: + lwz 3,0(3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: in32r */ +/* Description: Input 32 bits and byte reverse */ +/* ------------------------------------------------------------------------------- */ + .globl in32r +in32r: + lwbrx r3,0,r3 + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out8 */ +/* Description: Output 8 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out8 +out8: + stb r4,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out16 */ +/* Description: Output 16 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out16 +out16: + sth r4,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out16r */ +/* Description: Byte reverse and output 16 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out16r +out16r: + sthbrx r4,0,r3 + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out32 */ +/* Description: Output 32 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out32 +out32: + stw r4,0(r3) + sync + blr + +/* ------------------------------------------------------------------------------- */ +/* Function: out32r */ +/* Description: Byte reverse and output 32 bits */ +/* ------------------------------------------------------------------------------- */ + .globl out32r +out32r: + stwbrx r4,0,r3 + sync + blr diff --git a/arch/ppc/cpu/mpc8220/loadtask.c b/arch/ppc/cpu/mpc8220/loadtask.c new file mode 100644 index 0000000..6d8b627 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/loadtask.c @@ -0,0 +1,78 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * This file is based on code + * (C) Copyright Motorola, Inc., 2000 + */ + +#include <common.h> +#include <mpc8220.h> + +/* Multichannel DMA microcode */ +extern int taskTable; + +void loadtask (int basetask, int tasks) +{ + int *sram = (int *) (MMAP_SRAM + 512); + int *task_org = &taskTable; + unsigned int start, offset, end; + int i; + +#ifdef DEBUG + printf ("basetask = %d, tasks = %d\n", basetask, tasks); + printf ("task_org = 0x%08x\n", (unsigned int) task_org); +#endif + + /* setup TaskBAR register */ + *(vu_long *) MMAP_DMA = (MMAP_SRAM + 512); + + /* relocate task table entries */ + offset = (unsigned int) sram; + for (i = basetask; i < basetask + tasks; i++) { + sram[i * 8 + 0] = task_org[i * 8 + 0] + offset; + sram[i * 8 + 1] = task_org[i * 8 + 1] + offset; + sram[i * 8 + 2] = task_org[i * 8 + 2] + offset; + sram[i * 8 + 3] = task_org[i * 8 + 3] + offset; + sram[i * 8 + 4] = task_org[i * 8 + 4]; + sram[i * 8 + 5] = task_org[i * 8 + 5]; + sram[i * 8 + 6] = task_org[i * 8 + 6] + offset; + sram[i * 8 + 7] = task_org[i * 8 + 7]; + } + + /* relocate task descriptors */ + start = (sram[basetask * 8] - (unsigned int) sram); + end = (sram[(basetask + tasks - 1) * 8 + 1] - (unsigned int) sram); + +#ifdef DEBUG + printf ("TDT start = 0x%08x, end = 0x%08x\n", start, end); +#endif + + start /= 4; + end /= 4; + for (i = start; i <= end; i++) { + sram[i] = task_org[i]; + } + + /* relocate variables */ + start = (sram[basetask * 8 + 2] - (unsigned int) sram); + end = (sram[(basetask + tasks - 1) * 8 + 2] + 256 - + (unsigned int) sram); + start /= 4; + end /= 4; + for (i = start; i < end; i++) { + sram[i] = task_org[i]; + } + + /* relocate function decriptors */ + start = ((sram[basetask * 8 + 3] & 0xfffffffc) - (unsigned int) sram); + end = ((sram[(basetask + tasks - 1) * 8 + 3] & 0xfffffffc) + 256 - + (unsigned int) sram); + start /= 4; + end /= 4; + for (i = start; i < end; i++) { + sram[i] = task_org[i]; + } + + asm volatile ("sync"); +} diff --git a/arch/ppc/cpu/mpc8220/pci.c b/arch/ppc/cpu/mpc8220/pci.c new file mode 100644 index 0000000..7ef43b7 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/pci.c @@ -0,0 +1,191 @@ +/* + * Copyright 2004 Freescale Semiconductor. + * Copyright (C) 2003 Motorola Inc. + * Xianghua Xiao (x.xiao@motorola.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * PCI Configuration space access support for MPC8220 PCI Bridge + */ +#include <common.h> +#include <mpc8220.h> +#include <pci.h> +#include <asm/io.h> + +#if defined(CONFIG_PCI) + +/* System RAM mapped over PCI */ +#define CONFIG_PCI_SYS_MEM_BUS CONFIG_SYS_SDRAM_BASE +#define CONFIG_PCI_SYS_MEM_PHYS CONFIG_SYS_SDRAM_BASE +#define CONFIG_PCI_SYS_MEM_SIZE (1024 * 1024 * 1024) + +#define cfg_read(val, addr, type, op) *val = op((type)(addr)); +#define cfg_write(val, addr, type, op) op((type *)(addr), (val)); + +#define PCI_OP(rw, size, type, op, mask) \ +int mpc8220_pci_##rw##_config_##size(struct pci_controller *hose, \ + pci_dev_t dev, int offset, type val) \ +{ \ + u32 addr = 0; \ + u16 cfg_type = 0; \ + addr = ((offset & 0xfc) | cfg_type | (dev) | 0x80000000); \ + out_be32(hose->cfg_addr, addr); \ + __asm__ __volatile__("sync"); \ + cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \ + out_be32(hose->cfg_addr, addr & 0x7fffffff); \ + __asm__ __volatile__("sync"); \ + return 0; \ +} + +PCI_OP(read, byte, u8 *, in_8, 3) +PCI_OP(read, word, u16 *, in_le16, 2) +PCI_OP(write, byte, u8, out_8, 3) +PCI_OP(write, word, u16, out_le16, 2) +PCI_OP(write, dword, u32, out_le32, 0) + +int mpc8220_pci_read_config_dword(struct pci_controller *hose, pci_dev_t dev, + int offset, u32 *val) +{ + u32 addr; + u32 tmpv; + u32 mask = 2; /* word access */ + /* Read lower 16 bits */ + addr = ((offset & 0xfc) | (dev) | 0x80000000); + out_be32(hose->cfg_addr, addr); + __asm__ __volatile__("sync"); + *val = (u32) in_le16((u16 *) (hose->cfg_data + (offset & mask))); + out_be32(hose->cfg_addr, addr & 0x7fffffff); + __asm__ __volatile__("sync"); + + /* Read upper 16 bits */ + offset += 2; + addr = ((offset & 0xfc) | 1 | (dev) | 0x80000000); + out_be32(hose->cfg_addr, addr); + __asm__ __volatile__("sync"); + tmpv = (u32) in_le16((u16 *) (hose->cfg_data + (offset & mask))); + out_be32(hose->cfg_addr, addr & 0x7fffffff); + __asm__ __volatile__("sync"); + + /* combine results into dword value */ + *val = (tmpv << 16) | *val; + + return 0; +} + +void +pci_mpc8220_init(struct pci_controller *hose) +{ + u32 win0, win1, win2; + volatile mpc8220_xcpci_t *xcpci = + (volatile mpc8220_xcpci_t *) MMAP_XCPCI; + + volatile pcfg8220_t *portcfg = (volatile pcfg8220_t *) MMAP_PCFG; + + win0 = (u32) CONFIG_PCI_MEM_PHYS; + win1 = (u32) CONFIG_PCI_IO_PHYS; + win2 = (u32) CONFIG_PCI_CFG_PHYS; + + /* Assert PCI reset */ + out_be32 (&xcpci->glb_stat_ctl, PCI_GLB_STAT_CTRL_PR); + + /* Disable prefetching but read-multiples will still prefetch */ + out_be32 (&xcpci->target_ctrl, 0x00000000); + + /* Initiator windows */ + out_be32 (&xcpci->init_win0, (win0 >> 16) | win0 | 0x003f0000); + out_be32 (&xcpci->init_win1, ((win1 >> 16) | win1 )); + out_be32 (&xcpci->init_win2, ((win2 >> 16) | win2 )); + + out_be32 (&xcpci->init_win_cfg, + PCI_INIT_WIN_CFG_WIN0_CTRL_EN | + PCI_INIT_WIN_CFG_WIN1_CTRL_EN | PCI_INIT_WIN_CFG_WIN1_CTRL_IO | + PCI_INIT_WIN_CFG_WIN2_CTRL_EN | PCI_INIT_WIN_CFG_WIN2_CTRL_IO); + + out_be32 (&xcpci->init_ctrl, 0x00000000); + + /* Enable bus master and mem access */ + out_be32 (&xcpci->stat_cmd_reg, PCI_STAT_CMD_B | PCI_STAT_CMD_M); + + /* Cache line size and master latency */ + out_be32 (&xcpci->bist_htyp_lat_cshl, (0xf8 << PCI_CFG1_LT_SHIFT)); + + out_be32 (&xcpci->base0, PCI_BASE_ADDR_REG0); /* 256MB - MBAR space */ + out_be32 (&xcpci->base1, PCI_BASE_ADDR_REG1); /* 1GB - SDRAM space */ + + out_be32 (&xcpci->target_bar0, + PCI_TARGET_BASE_ADDR_REG0 | PCI_TARGET_BASE_ADDR_EN); + out_be32 (&xcpci->target_bar1, + PCI_TARGET_BASE_ADDR_REG1 | PCI_TARGET_BASE_ADDR_EN); + + /* Deassert reset bit */ + out_be32 (&xcpci->glb_stat_ctl, 0x00000000); + + /* Enable PCI bus master support */ + /* Set PCIGNT1, PCIREQ1, PCIREQ0/PCIGNTIN, PCIGNT0/PCIREQOUT, + PCIREQ2, PCIGNT2 */ + out_be32((volatile u32 *)&portcfg->pcfg3, + (in_be32((volatile u32 *)&portcfg->pcfg3) & 0xFC3FCE7F)); + out_be32((volatile u32 *)&portcfg->pcfg3, + (in_be32((volatile u32 *)&portcfg->pcfg3) | 0x01400180)); + + hose->first_busno = 0; + hose->last_busno = 0xff; + + pci_set_region(hose->regions + 0, + CONFIG_PCI_MEM_BUS, + CONFIG_PCI_MEM_PHYS, + CONFIG_PCI_MEM_SIZE, + PCI_REGION_MEM); + + pci_set_region(hose->regions + 1, + CONFIG_PCI_IO_BUS, + CONFIG_PCI_IO_PHYS, + CONFIG_PCI_IO_SIZE, + PCI_REGION_IO); + + pci_set_region(hose->regions + 2, + CONFIG_PCI_SYS_MEM_BUS, + CONFIG_PCI_SYS_MEM_PHYS, + CONFIG_PCI_SYS_MEM_SIZE, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + hose->region_count = 3; + + hose->cfg_addr = &(xcpci->cfg_adr); + hose->cfg_data = (volatile unsigned char *)CONFIG_PCI_CFG_BUS; + + pci_set_ops(hose, + mpc8220_pci_read_config_byte, + mpc8220_pci_read_config_word, + mpc8220_pci_read_config_dword, + mpc8220_pci_write_config_byte, + mpc8220_pci_write_config_word, + mpc8220_pci_write_config_dword); + + /* Hose scan */ + pci_register_hose(hose); + hose->last_busno = pci_hose_scan(hose); + + out_be32 (&xcpci->base0, PCI_BASE_ADDR_REG0); /* 256MB - MBAR space */ + out_be32 (&xcpci->base1, PCI_BASE_ADDR_REG1); /* 1GB - SDRAM space */ +} + +#endif /* CONFIG_PCI */ diff --git a/arch/ppc/cpu/mpc8220/speed.c b/arch/ppc/cpu/mpc8220/speed.c new file mode 100644 index 0000000..62ac845 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/speed.c @@ -0,0 +1,123 @@ +/* + * (C) Copyright 2004, Freescale, Inc + * TsiChung Liew, Tsi-Chung.Liew@freescale.com. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc8220.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +typedef struct pllmultiplier { + u8 hid1; + int multi; + int vco_div; +} pllcfg_t; + +/* ------------------------------------------------------------------------- */ + +/* + * + */ + +int get_clocks (void) +{ + pllcfg_t bus2core[] = { + {0x02, 2, 8}, /* 1 */ + {0x01, 2, 4}, + {0x0C, 3, 8}, /* 1.5 */ + {0x00, 3, 4}, + {0x18, 3, 2}, + {0x05, 4, 4}, /* 2 */ + {0x04, 4, 2}, + {0x11, 5, 4}, /* 2.5 */ + {0x06, 5, 2}, + {0x10, 6, 4}, /* 3 */ + {0x08, 6, 2}, + {0x0E, 7, 2}, /* 3.5 */ + {0x0A, 8, 2}, /* 4 */ + {0x07, 9, 2}, /* 4.5 */ + {0x0B, 10, 2}, /* 5 */ + {0x09, 11, 2}, /* 5.5 */ + {0x0D, 12, 2}, /* 6 */ + {0x12, 13, 2}, /* 6.5 */ + {0x14, 14, 2}, /* 7 */ + {0x16, 15, 2}, /* 7.5 */ + {0x1C, 16, 2} /* 8 */ + }; + u32 hid1; + int i, size, pci2bus; + +#if !defined(CONFIG_SYS_MPC8220_CLKIN) +#error clock measuring not implemented yet - define CONFIG_SYS_MPC8220_CLKIN +#endif + + gd->inp_clk = CONFIG_SYS_MPC8220_CLKIN; + + /* Read XLB to PCI(INP) clock multiplier */ + pci2bus = (*((volatile u32 *)PCI_REG_PCIGSCR) & + PCI_REG_PCIGSCR_PCI2XLB_CLK_MASK)>>PCI_REG_PCIGSCR_PCI2XLB_CLK_BIT; + + /* XLB bus clock */ + gd->bus_clk = CONFIG_SYS_MPC8220_CLKIN * pci2bus; + + /* PCI clock is same as input clock */ + gd->pci_clk = CONFIG_SYS_MPC8220_CLKIN; + + /* FlexBus is temporary set as the same as input clock */ + /* will do dynamic in the future */ + gd->flb_clk = CONFIG_SYS_MPC8220_CLKIN; + + /* CPU Clock - Read HID1 */ + asm volatile ("mfspr %0, 1009":"=r" (hid1):); + + size = sizeof (bus2core) / sizeof (pllcfg_t); + + hid1 >>= 27; + + for (i = 0; i < size; i++) + if (hid1 == bus2core[i].hid1) { + gd->cpu_clk = (bus2core[i].multi * gd->bus_clk) >> 1; + gd->vco_clk = CONFIG_SYS_MPC8220_SYSPLL_VCO_MULTIPLIER * (gd->pci_clk * bus2core[i].vco_div)/2; + break; + } + + /* hardcoded 81MHz for now */ + gd->pev_clk = 81000000; + + return (0); +} + +int prt_mpc8220_clks (void) +{ + char buf1[32], buf2[32], buf3[32], buf4[32]; + + printf (" Bus %s MHz, CPU %s MHz, PCI %s MHz, VCO %s MHz\n", + strmhz(buf1, gd->bus_clk), + strmhz(buf2, gd->cpu_clk), + strmhz(buf3, gd->pci_clk), + strmhz(buf4, gd->vco_clk) + ); + return (0); +} + +/* ------------------------------------------------------------------------- */ diff --git a/arch/ppc/cpu/mpc8220/start.S b/arch/ppc/cpu/mpc8220/start.S new file mode 100644 index 0000000..e28999d --- /dev/null +++ b/arch/ppc/cpu/mpc8220/start.S @@ -0,0 +1,750 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2000 - 2003 Wolfgang Denk <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * U-Boot - Startup Code for MPC8220 CPUs + */ +#include <config.h> +#include <mpc8220.h> +#include <timestamp.h> +#include <version.h> + +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +/* We don't want the MMU yet. +*/ +#undef MSR_KERNEL +/* Floating Point enable, Machine Check and Recoverable Interr. */ +#ifdef DEBUG +#define MSR_KERNEL (MSR_FP|MSR_RI) +#else +#define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI) +#endif + +/* + * Set up GOT: Global Offset Table + * + * Use r12 to access the GOT + */ + START_GOT + GOT_ENTRY(_GOT2_TABLE_) + GOT_ENTRY(_FIXUP_TABLE_) + + GOT_ENTRY(_start) + GOT_ENTRY(_start_of_vectors) + GOT_ENTRY(_end_of_vectors) + GOT_ENTRY(transfer_to_handler) + + GOT_ENTRY(__init_end) + GOT_ENTRY(_end) + GOT_ENTRY(__bss_start) + END_GOT + +/* + * Version string + */ + .data + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" + .ascii CONFIG_IDENT_STRING, "\0" + +/* + * Exception vectors + */ + .text + . = EXC_OFF_SYS_RESET + .globl _start +_start: + li r21, BOOTFLAG_COLD /* Normal Power-On */ + nop + b boot_cold + + . = EXC_OFF_SYS_RESET + 0x10 + + .globl _start_warm +_start_warm: + li r21, BOOTFLAG_WARM /* Software reboot */ + b boot_warm + +boot_cold: +boot_warm: + mfmsr r5 /* save msr contents */ + + /* replace default MBAR base address from 0x80000000 + to 0xf0000000 */ + +#if defined(CONFIG_SYS_DEFAULT_MBAR) && !defined(CONFIG_SYS_RAMBOOT) + lis r3, CONFIG_SYS_MBAR@h + ori r3, r3, CONFIG_SYS_MBAR@l + + /* MBAR is mirrored into the MBAR SPR */ + mtspr MBAR,r3 + mtspr SPRN_SPRG7W,r3 + lis r4, CONFIG_SYS_DEFAULT_MBAR@h + stw r3, 0(r4) +#endif /* CONFIG_SYS_DEFAULT_MBAR */ + + /* Initialise the MPC8220 processor core */ + /*--------------------------------------------------------------*/ + + bl init_8220_core + + /* initialize some things that are hard to access from C */ + /*--------------------------------------------------------------*/ + + /* set up stack in on-chip SRAM */ + lis r3, CONFIG_SYS_INIT_RAM_ADDR@h + ori r3, r3, CONFIG_SYS_INIT_RAM_ADDR@l + ori r1, r3, CONFIG_SYS_INIT_SP_OFFSET + + li r0, 0 /* Make room for stack frame header and */ + stwu r0, -4(r1) /* clear final stack frame so that */ + stwu r0, -4(r1) /* stack backtraces terminate cleanly */ + + /* let the C-code set up the rest */ + /* */ + /* Be careful to keep code relocatable ! */ + /*--------------------------------------------------------------*/ + + GET_GOT /* initialize GOT access */ + + /* r3: IMMR */ + bl cpu_init_f /* run low-level CPU init code (in Flash)*/ + + mr r3, r21 + /* r3: BOOTFLAG */ + bl board_init_f /* run 1st part of board init code (in Flash)*/ + +/* + * Vector Table + */ + + .globl _start_of_vectors +_start_of_vectors: + +/* Machine check */ + STD_EXCEPTION(0x200, MachineCheck, MachineCheckException) + +/* Data Storage exception. */ + STD_EXCEPTION(0x300, DataStorage, UnknownException) + +/* Instruction Storage exception. */ + STD_EXCEPTION(0x400, InstStorage, UnknownException) + +/* External Interrupt exception. */ + STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) + +/* Alignment exception. */ + . = 0x600 +Alignment: + EXCEPTION_PROLOG(SRR0, SRR1) + mfspr r4,DAR + stw r4,_DAR(r21) + mfspr r5,DSISR + stw r5,_DSISR(r21) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) + +/* Program check exception */ + . = 0x700 +ProgramCheck: + EXCEPTION_PROLOG(SRR0, SRR1) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, + MSR_KERNEL, COPY_EE) + + STD_EXCEPTION(0x800, FPUnavailable, UnknownException) + + /* I guess we could implement decrementer, and may have + * to someday for timekeeping. + */ + STD_EXCEPTION(0x900, Decrementer, timer_interrupt) + + STD_EXCEPTION(0xa00, Trap_0a, UnknownException) + STD_EXCEPTION(0xb00, Trap_0b, UnknownException) + STD_EXCEPTION(0xc00, SystemCall, UnknownException) + STD_EXCEPTION(0xd00, SingleStep, UnknownException) + + STD_EXCEPTION(0xe00, Trap_0e, UnknownException) + STD_EXCEPTION(0xf00, Trap_0f, UnknownException) + + STD_EXCEPTION(0x1000, InstructionTLBMiss, UnknownException) + STD_EXCEPTION(0x1100, DataLoadTLBMiss, UnknownException) + STD_EXCEPTION(0x1200, DataStoreTLBMiss, UnknownException) +#ifdef DEBUG + . = 0x1300 + /* + * This exception occurs when the program counter matches the + * Instruction Address Breakpoint Register (IABR). + * + * I want the cpu to halt if this occurs so I can hunt around + * with the debugger and look at things. + * + * When DEBUG is defined, both machine check enable (in the MSR) + * and checkstop reset enable (in the reset mode register) are + * turned off and so a checkstop condition will result in the cpu + * halting. + * + * I force the cpu into a checkstop condition by putting an illegal + * instruction here (at least this is the theory). + * + * well - that didnt work, so just do an infinite loop! + */ +1: b 1b +#else + STD_EXCEPTION(0x1300, InstructionBreakpoint, DebugException) +#endif + STD_EXCEPTION(0x1400, SMI, UnknownException) + + STD_EXCEPTION(0x1500, Trap_15, UnknownException) + STD_EXCEPTION(0x1600, Trap_16, UnknownException) + STD_EXCEPTION(0x1700, Trap_17, UnknownException) + STD_EXCEPTION(0x1800, Trap_18, UnknownException) + STD_EXCEPTION(0x1900, Trap_19, UnknownException) + STD_EXCEPTION(0x1a00, Trap_1a, UnknownException) + STD_EXCEPTION(0x1b00, Trap_1b, UnknownException) + STD_EXCEPTION(0x1c00, Trap_1c, UnknownException) + STD_EXCEPTION(0x1d00, Trap_1d, UnknownException) + STD_EXCEPTION(0x1e00, Trap_1e, UnknownException) + STD_EXCEPTION(0x1f00, Trap_1f, UnknownException) + STD_EXCEPTION(0x2000, Trap_20, UnknownException) + STD_EXCEPTION(0x2100, Trap_21, UnknownException) + STD_EXCEPTION(0x2200, Trap_22, UnknownException) + STD_EXCEPTION(0x2300, Trap_23, UnknownException) + STD_EXCEPTION(0x2400, Trap_24, UnknownException) + STD_EXCEPTION(0x2500, Trap_25, UnknownException) + STD_EXCEPTION(0x2600, Trap_26, UnknownException) + STD_EXCEPTION(0x2700, Trap_27, UnknownException) + STD_EXCEPTION(0x2800, Trap_28, UnknownException) + STD_EXCEPTION(0x2900, Trap_29, UnknownException) + STD_EXCEPTION(0x2a00, Trap_2a, UnknownException) + STD_EXCEPTION(0x2b00, Trap_2b, UnknownException) + STD_EXCEPTION(0x2c00, Trap_2c, UnknownException) + STD_EXCEPTION(0x2d00, Trap_2d, UnknownException) + STD_EXCEPTION(0x2e00, Trap_2e, UnknownException) + STD_EXCEPTION(0x2f00, Trap_2f, UnknownException) + + + .globl _end_of_vectors +_end_of_vectors: + + . = 0x3000 + +/* + * This code finishes saving the registers to the exception frame + * and jumps to the appropriate handler for the exception. + * Register r21 is pointer into trap frame, r1 has new stack pointer. + */ + .globl transfer_to_handler +transfer_to_handler: + stw r22,_NIP(r21) + lis r22,MSR_POW@h + andc r23,r23,r22 + stw r23,_MSR(r21) + SAVE_GPR(7, r21) + SAVE_4GPRS(8, r21) + SAVE_8GPRS(12, r21) + SAVE_8GPRS(24, r21) + mflr r23 + andi. r24,r23,0x3f00 /* get vector offset */ + stw r24,TRAP(r21) + li r22,0 + stw r22,RESULT(r21) + lwz r24,0(r23) /* virtual address of handler */ + lwz r23,4(r23) /* where to go when done */ + mtspr SRR0,r24 + mtspr SRR1,r20 + mtlr r23 + SYNC + rfi /* jump to handler, enable MMU */ + +int_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SRR0,r2 + mtspr SRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfi + +/* + * This code initialises the MPC8220 processor core + * (conforms to PowerPC 603e spec) + * Note: expects original MSR contents to be in r5. + */ + + .globl init_8220_core +init_8220_core: + + /* Initialize machine status; enable machine check interrupt */ + /*--------------------------------------------------------------*/ + + li r3, MSR_KERNEL /* Set ME and RI flags */ + rlwimi r3, r5, 0, 25, 25 /* preserve IP bit set by HRCW */ +#ifdef DEBUG + rlwimi r3, r5, 0, 21, 22 /* debugger might set SE & BE bits */ +#endif + SYNC /* Some chip revs need this... */ + mtmsr r3 + SYNC + mtspr SRR1, r3 /* Make SRR1 match MSR */ + + /* Initialize the Hardware Implementation-dependent Registers */ + /* HID0 also contains cache control */ + /*--------------------------------------------------------------*/ + + lis r3, CONFIG_SYS_HID0_INIT@h + ori r3, r3, CONFIG_SYS_HID0_INIT@l + SYNC + mtspr HID0, r3 + + lis r3, CONFIG_SYS_HID0_FINAL@h + ori r3, r3, CONFIG_SYS_HID0_FINAL@l + SYNC + mtspr HID0, r3 + + /* Enable Extra BATs */ + mfspr r3, 1011 /* HID2 */ + lis r4, 0x0004 + ori r4, r4, 0x0000 + or r4, r4, r3 + mtspr 1011, r4 + sync + + /* clear all BAT's */ + /*--------------------------------------------------------------*/ + + li r0, 0 + mtspr DBAT0U, r0 + mtspr DBAT0L, r0 + mtspr DBAT1U, r0 + mtspr DBAT1L, r0 + mtspr DBAT2U, r0 + mtspr DBAT2L, r0 + mtspr DBAT3U, r0 + mtspr DBAT3L, r0 + mtspr DBAT4U, r0 + mtspr DBAT4L, r0 + mtspr DBAT5U, r0 + mtspr DBAT5L, r0 + mtspr DBAT6U, r0 + mtspr DBAT6L, r0 + mtspr DBAT7U, r0 + mtspr DBAT7L, r0 + mtspr IBAT0U, r0 + mtspr IBAT0L, r0 + mtspr IBAT1U, r0 + mtspr IBAT1L, r0 + mtspr IBAT2U, r0 + mtspr IBAT2L, r0 + mtspr IBAT3U, r0 + mtspr IBAT3L, r0 + mtspr IBAT4U, r0 + mtspr IBAT4L, r0 + mtspr IBAT5U, r0 + mtspr IBAT5L, r0 + mtspr IBAT6U, r0 + mtspr IBAT6L, r0 + mtspr IBAT7U, r0 + mtspr IBAT7L, r0 + SYNC + + /* invalidate all tlb's */ + /* */ + /* From the 603e User Manual: "The 603e provides the ability to */ + /* invalidate a TLB entry. The TLB Invalidate Entry (tlbie) */ + /* instruction invalidates the TLB entry indexed by the EA, and */ + /* operates on both the instruction and data TLBs simultaneously*/ + /* invalidating four TLB entries (both sets in each TLB). The */ + /* index corresponds to bits 15-19 of the EA. To invalidate all */ + /* entries within both TLBs, 32 tlbie instructions should be */ + /* issued, incrementing this field by one each time." */ + /* */ + /* "Note that the tlbia instruction is not implemented on the */ + /* 603e." */ + /* */ + /* bits 15-19 correspond to addresses 0x00000000 to 0x0001F000 */ + /* incrementing by 0x1000 each time. The code below is sort of */ + /* based on code in "flush_tlbs" from arch/ppc/kernel/head.S */ + /* */ + /*--------------------------------------------------------------*/ + + li r3, 32 + mtctr r3 + li r3, 0 +1: tlbie r3 + addi r3, r3, 0x1000 + bdnz 1b + SYNC + + /* Done! */ + /*--------------------------------------------------------------*/ + + blr + +/* Cache functions. + * + * Note: requires that all cache bits in + * HID0 are in the low half word. + */ + .globl icache_enable +icache_enable: + lis r4, 0 + ori r4, r4, CONFIG_SYS_HID0_INIT /* set ICE & ICFI bit */ + rlwinm r3, r4, 0, 21, 19 /* clear the ICFI bit */ + + /* + * The setting of the instruction cache enable (ICE) bit must be + * preceded by an isync instruction to prevent the cache from being + * enabled or disabled while an instruction access is in progress. + */ + isync + mtspr HID0, r4 /* Enable Instr Cache & Inval cache */ + mtspr HID0, r3 /* using 2 consec instructions */ + isync + blr + + .globl icache_disable +icache_disable: + mfspr r3, HID0 + rlwinm r3, r3, 0, 17, 15 /* clear the ICE bit */ + mtspr HID0, r3 + isync + blr + + .globl icache_status +icache_status: + mfspr r3, HID0 + rlwinm r3, r3, HID0_ICE_BITPOS + 1, 31, 31 + blr + + .globl dcache_enable +dcache_enable: + lis r4, 0 + ori r4, r4, HID0_DCE|HID0_DCFI /* set DCE & DCFI bit */ + rlwinm r3, r4, 0, 22, 20 /* clear the DCFI bit */ + + /* Enable address translation in MSR bit */ + mfmsr r5 + ori r5, r5, 0x + + + /* + * The setting of the instruction cache enable (ICE) bit must be + * preceded by an isync instruction to prevent the cache from being + * enabled or disabled while an instruction access is in progress. + */ + isync + mtspr HID0, r4 /* Enable Data Cache & Inval cache*/ + mtspr HID0, r3 /* using 2 consec instructions */ + isync + blr + + .globl dcache_disable +dcache_disable: + mfspr r3, HID0 + rlwinm r3, r3, 0, 18, 16 /* clear the DCE bit */ + mtspr HID0, r3 + isync + blr + + .globl dcache_status +dcache_status: + mfspr r3, HID0 + rlwinm r3, r3, HID0_DCE_BITPOS + 1, 31, 31 + blr + + .globl get_pvr +get_pvr: + mfspr r3, PVR + blr + +/*------------------------------------------------------------------------------*/ + +/* + * void relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * r3 = dest + * r4 = src + * r5 = length in bytes + * r6 = cachelinesize + */ + .globl relocate_code +relocate_code: + mr r1, r3 /* Set new stack pointer */ + mr r9, r4 /* Save copy of Global Data pointer */ + mr r10, r5 /* Save copy of Destination Address */ + + GET_GOT + mr r3, r5 /* Destination Address */ + lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ + ori r4, r4, CONFIG_SYS_MONITOR_BASE@l + lwz r5, GOT(__init_end) + sub r5, r5, r4 + li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */ + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address + * + * Offset: + */ + sub r15, r10, r4 + + /* First our own GOT */ + add r12, r12, r15 + /* then the one used by the C code */ + add r30, r30, r15 + + /* + * Now relocate code + */ + + cmplw cr1,r3,r4 + addi r0,r5,3 + srwi. r0,r0,2 + beq cr1,4f /* In place copy is not necessary */ + beq 7f /* Protect against 0 count */ + mtctr r0 + bge cr1,2f + + la r8,-4(r4) + la r7,-4(r3) +1: lwzu r0,4(r8) + stwu r0,4(r7) + bdnz 1b + b 4f + +2: slwi r0,r0,2 + add r8,r4,r0 + add r7,r3,r0 +3: lwzu r0,-4(r8) + stwu r0,-4(r7) + bdnz 3b + +/* + * Now flush the cache: note that we must start from a cache aligned + * address. Otherwise we might miss one cache line. + */ +4: cmpwi r6,0 + add r5,r3,r5 + beq 7f /* Always flush prefetch queue in any case */ + subi r0,r6,1 + andc r3,r3,r0 + mfspr r7,HID0 /* don't do dcbst if dcache is disabled */ + rlwinm r7,r7,HID0_DCE_BITPOS+1,31,31 + cmpwi r7,0 + beq 9f + mr r4,r3 +5: dcbst 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 5b + sync /* Wait for all dcbst to complete on bus */ +9: mfspr r7,HID0 /* don't do icbi if icache is disabled */ + rlwinm r7,r7,HID0_ICE_BITPOS+1,31,31 + cmpwi r7,0 + beq 7f + mr r4,r3 +6: icbi 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 6b +7: sync /* Wait for all icbi to complete on bus */ + isync + +/* + * We are done. Do not return, instead branch to second part of board + * initialization, now running from RAM. + */ + + addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET + mtlr r0 + blr + +in_ram: + + /* + * Relocation Function, r12 point to got2+0x8000 + * + * Adjust got2 pointers, no need to check for 0, this code + * already puts a few entries in the table. + */ + li r0,__got2_entries@sectoff@l + la r3,GOT(_GOT2_TABLE_) + lwz r11,GOT(_GOT2_TABLE_) + mtctr r0 + sub r11,r3,r11 + addi r3,r3,-4 +1: lwzu r0,4(r3) + cmpwi r0,0 + beq- 2f + add r0,r0,r11 + stw r0,0(r3) +2: bdnz 1b + + /* + * Now adjust the fixups and the pointers to the fixups + * in case we need to move ourselves again. + */ + li r0,__fixup_entries@sectoff@l + lwz r3,GOT(_FIXUP_TABLE_) + cmpwi r0,0 + mtctr r0 + addi r3,r3,-4 + beq 4f +3: lwzu r4,4(r3) + lwzux r0,r4,r11 + add r0,r0,r11 + stw r10,0(r3) + stw r0,0(r4) + bdnz 3b +4: +clear_bss: + /* + * Now clear BSS segment + */ + lwz r3,GOT(__bss_start) + lwz r4,GOT(_end) + + cmplw 0, r3, r4 + beq 6f + + li r0, 0 +5: + stw r0, 0(r3) + addi r3, r3, 4 + cmplw 0, r3, r4 + bne 5b +6: + + mr r3, r9 /* Global Data pointer */ + mr r4, r10 /* Destination Address */ + bl board_init_r + + /* + * Copy exception vector code to low memory + * + * r3: dest_addr + * r7: source address, r8: end address, r9: target address + */ + .globl trap_init +trap_init: + mflr r4 /* save link register */ + GET_GOT + lwz r7, GOT(_start) + lwz r8, GOT(_end_of_vectors) + + li r9, 0x100 /* reset vector always at 0x100 */ + + cmplw 0, r7, r8 + bgelr /* return if r7>=r8 - just in case */ +1: + lwz r0, 0(r7) + stw r0, 0(r9) + addi r7, r7, 4 + addi r9, r9, 4 + cmplw 0, r7, r8 + bne 1b + + /* + * relocate `hdlr' and `int_return' entries + */ + li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET + li r8, Alignment - _start + EXC_OFF_SYS_RESET +2: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 2b + + li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET + li r8, SystemCall - _start + EXC_OFF_SYS_RESET +3: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 3b + + li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET + li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET +4: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 4b + + mfmsr r3 /* now that the vectors have */ + lis r7, MSR_IP@h /* relocated into low memory */ + ori r7, r7, MSR_IP@l /* MSR[IP] can be turned off */ + andc r3, r3, r7 /* (if it was on) */ + SYNC /* Some chip revs need this... */ + mtmsr r3 + SYNC + + mtlr r4 /* restore link register */ + blr diff --git a/arch/ppc/cpu/mpc8220/traps.c b/arch/ppc/cpu/mpc8220/traps.c new file mode 100644 index 0000000..4565780 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/traps.c @@ -0,0 +1,236 @@ +/* + * linux/arch/ppc/kernel/traps.c + * + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * Modified by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras (paulus@cs.anu.edu.au) + * fixed Machine Check Reasons by Reinhard Meyer (r.meyer@emk-elektronik.de) + * + * (C) Copyright 2000-2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * This file handles the architecture-dependent parts of hardware exceptions + */ + +#include <common.h> +#include <command.h> +#include <kgdb.h> +#include <asm/processor.h> + +/* Returns 0 if exception not found and fixup otherwise. */ +extern unsigned long search_exception_table (unsigned long); + +/* THIS NEEDS CHANGING to use the board info structure. +*/ +#define END_OF_MEM 0x02000000 + +/* + * Trap & Exception support + */ + +void print_backtrace (unsigned long *sp) +{ + int cnt = 0; + unsigned long i; + + printf ("Call backtrace: "); + while (sp) { + if ((uint) sp > END_OF_MEM) + break; + + i = sp[1]; + if (cnt++ % 7 == 0) + printf ("\n"); + printf ("%08lX ", i); + if (cnt > 32) + break; + sp = (unsigned long *) *sp; + } + printf ("\n"); +} + +void show_regs (struct pt_regs *regs) +{ + int i; + + printf ("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n", + regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); + printf ("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n", + regs->msr, + regs->msr & MSR_EE ? 1 : 0, regs->msr & MSR_PR ? 1 : 0, + regs->msr & MSR_FP ? 1 : 0, regs->msr & MSR_ME ? 1 : 0, + regs->msr & MSR_IR ? 1 : 0, regs->msr & MSR_DR ? 1 : 0); + + printf ("\n"); + for (i = 0; i < 32; i++) { + if ((i % 8) == 0) { + printf ("GPR%02d: ", i); + } + + printf ("%08lX ", regs->gpr[i]); + if ((i % 8) == 7) { + printf ("\n"); + } + } +} + + +void _exception (int signr, struct pt_regs *regs) +{ + show_regs (regs); + print_backtrace ((unsigned long *) regs->gpr[1]); + panic ("Exception in kernel pc %lx signal %d", regs->nip, signr); +} + +void MachineCheckException (struct pt_regs *regs) +{ + unsigned long fixup; + + /* Probing PCI using config cycles cause this exception + * when a device is not present. Catch it and return to + * the PCI exception handler. + */ + if ((fixup = search_exception_table (regs->nip)) != 0) { + regs->nip = fixup; + return; + } +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler + && (*debugger_exception_handler) (regs)) + return; +#endif + + printf ("Machine check in kernel mode.\n"); + printf ("Caused by (from msr): "); + printf ("regs %p ", regs); + /* refer to 603e Manual (MPC603EUM/AD), chapter 4.5.2.1 */ + switch (regs->msr & 0x000F0000) { + case (0x80000000 >> 12): + printf ("Machine check signal - probably due to mm fault\n" + "with mmu off\n"); + break; + case (0x80000000 >> 13): + printf ("Transfer error ack signal\n"); + break; + case (0x80000000 >> 14): + printf ("Data parity signal\n"); + break; + case (0x80000000 >> 15): + printf ("Address parity signal\n"); + break; + default: + printf ("Unknown values in msr\n"); + } + show_regs (regs); + print_backtrace ((unsigned long *) regs->gpr[1]); + panic ("machine check"); +} + +void AlignmentException (struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler + && (*debugger_exception_handler) (regs)) + return; +#endif + show_regs (regs); + print_backtrace ((unsigned long *) regs->gpr[1]); + panic ("Alignment Exception"); +} + +void ProgramCheckException (struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler + && (*debugger_exception_handler) (regs)) + return; +#endif + show_regs (regs); + print_backtrace ((unsigned long *) regs->gpr[1]); + panic ("Program Check Exception"); +} + +void SoftEmuException (struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler + && (*debugger_exception_handler) (regs)) + return; +#endif + show_regs (regs); + print_backtrace ((unsigned long *) regs->gpr[1]); + panic ("Software Emulation Exception"); +} + + +void UnknownException (struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler + && (*debugger_exception_handler) (regs)) + return; +#endif + printf ("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", + regs->nip, regs->msr, regs->trap); + _exception (0, regs); +} + +#if defined(CONFIG_CMD_BEDBUG) +extern void do_bedbug_breakpoint (struct pt_regs *); +#endif + +void DebugException (struct pt_regs *regs) +{ + + printf ("Debugger trap at @ %lx\n", regs->nip); + show_regs (regs); +#if defined(CONFIG_CMD_BEDBUG) + do_bedbug_breakpoint (regs); +#endif +} + +/* Probe an address by reading. If not present, return -1, otherwise + * return 0. + */ +int addr_probe (uint * addr) +{ +#if 0 + int retval; + + __asm__ __volatile__ ("1: lwz %0,0(%1)\n" + " eieio\n" + " li %0,0\n" + "2:\n" + ".section .fixup,\"ax\"\n" + "3: li %0,-1\n" + " b 2b\n" + ".section __ex_table,\"a\"\n" + " .align 2\n" + " .long 1b,3b\n" + ".text":"=r" (retval):"r" (addr)); + + return (retval); +#endif + return 0; +} diff --git a/arch/ppc/cpu/mpc8220/u-boot.lds b/arch/ppc/cpu/mpc8220/u-boot.lds new file mode 100644 index 0000000..8c5d307 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/u-boot.lds @@ -0,0 +1,122 @@ +/* + * (C) Copyright 2003-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_ARCH(powerpc) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + arch/ppc/cpu/mpc8220/start.o (.text) + *(.text) + *(.got1) + . = ALIGN(16); + *(.eh_frame) + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x0FFF) & 0xFFFFF000; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(4096); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(4096); + __init_end = .; + + __bss_start = .; + .bss (NOLOAD) : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + . = ALIGN(4); + } + _end = . ; + PROVIDE (end = .); +} diff --git a/arch/ppc/cpu/mpc8220/uart.c b/arch/ppc/cpu/mpc8220/uart.c new file mode 100644 index 0000000..0c4b536 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/uart.c @@ -0,0 +1,126 @@ +/* + * (C) Copyright 2004, Freescale, Inc + * TsiChung Liew, Tsi-Chung.Liew@freescale.com. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +/* + * Minimal serial functions needed to use one of the PSC ports + * as serial console interface. + */ + +#include <common.h> +#include <mpc8220.h> + +DECLARE_GLOBAL_DATA_PTR; + +#define PSC_BASE MMAP_PSC1 + +#if defined(CONFIG_PSC_CONSOLE) +int serial_init (void) +{ + volatile psc8220_t *psc = (psc8220_t *) PSC_BASE; + u32 counter; + + /* write to SICR: SIM2 = uart mode,dcd does not affect rx */ + psc->cr = 0; + psc->ipcr_acr = 0; + psc->isr_imr = 0; + + /* write to CSR: RX/TX baud rate from timers */ + psc->sr_csr = 0xdd000000; + + psc->mr1_2 = PSC_MR1_BITS_CHAR_8 | PSC_MR1_NO_PARITY | PSC_MR2_STOP_BITS_1; + + /* Setting up BaudRate */ + counter = ((gd->bus_clk / gd->baudrate)) >> 5; + counter++; + + /* write to CTUR: divide counter upper byte */ + psc->ctur = ((counter & 0xff00) << 16); + /* write to CTLR: divide counter lower byte */ + psc->ctlr = ((counter & 0x00ff) << 24); + + psc->cr = PSC_CR_RST_RX_CMD; + psc->cr = PSC_CR_RST_TX_CMD; + psc->cr = PSC_CR_RST_ERR_STS_CMD; + psc->cr = PSC_CR_RST_BRK_INT_CMD; + psc->cr = PSC_CR_RST_MR_PTR_CMD; + + psc->cr = PSC_CR_RX_ENABLE | PSC_CR_TX_ENABLE; + return (0); +} + +void serial_putc (const char c) +{ + volatile psc8220_t *psc = (psc8220_t *) PSC_BASE; + + if (c == '\n') + serial_putc ('\r'); + + /* Wait for last character to go. */ + while (!(psc->sr_csr & PSC_SR_TXRDY)); + + psc->xmitbuf[0] = c; +} + +void serial_puts (const char *s) +{ + while (*s) { + serial_putc (*s++); + } +} + +int serial_getc (void) +{ + volatile psc8220_t *psc = (psc8220_t *) PSC_BASE; + + /* Wait for a character to arrive. */ + while (!(psc->sr_csr & PSC_SR_RXRDY)); + return psc->xmitbuf[2]; +} + +int serial_tstc (void) +{ + volatile psc8220_t *psc = (psc8220_t *) PSC_BASE; + + return (psc->sr_csr & PSC_SR_RXRDY); +} + +void serial_setbrg (void) +{ + volatile psc8220_t *psc = (psc8220_t *) PSC_BASE; + u32 counter; + + counter = ((gd->bus_clk / gd->baudrate)) >> 5; + counter++; + + /* write to CTUR: divide counter upper byte */ + psc->ctur = ((counter & 0xff00) << 16); + /* write to CTLR: divide counter lower byte */ + psc->ctlr = ((counter & 0x00ff) << 24); + + psc->cr = PSC_CR_RST_RX_CMD; + psc->cr = PSC_CR_RST_TX_CMD; + + psc->cr = PSC_CR_RX_ENABLE | PSC_CR_TX_ENABLE; +} +#endif /* CONFIG_PSC_CONSOLE */ diff --git a/arch/ppc/cpu/mpc824x/.gitignore b/arch/ppc/cpu/mpc824x/.gitignore new file mode 100644 index 0000000..2d79931 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/.gitignore @@ -0,0 +1 @@ +/bedbug_603e.c diff --git a/arch/ppc/cpu/mpc824x/Makefile b/arch/ppc/cpu/mpc824x/Makefile new file mode 100644 index 0000000..a57ad12 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/Makefile @@ -0,0 +1,56 @@ +# +# (C) Copyright 2000-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk +ifneq ($(OBJTREE),$(SRCTREE)) +$(shell mkdir -p $(obj)drivers/epic) +$(shell mkdir -p $(obj)drivers/i2c) +endif + +LIB = $(obj)lib$(CPU).a + +START = start.o +COBJS = traps.o cpu.o cpu_init.o interrupts.o speed.o \ + drivers/epic/epic1.o drivers/i2c/i2c.o pci.o +COBJS_LN = bedbug_603e.o + +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) $(addprefix $(obj),$(COBJS_LN:.o=.c)) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS) $(COBJS_LN)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +$(obj)bedbug_603e.c: + ln -sf $(src)../mpc8260/bedbug_603e.c $(obj)bedbug_603e.c + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/ppc/cpu/mpc824x/config.mk b/arch/ppc/cpu/mpc824x/config.mk new file mode 100644 index 0000000..31ecd20 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/config.mk @@ -0,0 +1,29 @@ +# +# (C) Copyright 2000 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +PLATFORM_RELFLAGS += -fPIC -meabi + +PLATFORM_CPPFLAGS += -DCONFIG_MPC824X -ffixed-r2 -mstring -mcpu=603e -msoft-float + +# Use default linker script. Board port can override in board/*/config.mk +LDSCRIPT := $(SRCTREE)/arch/ppc/cpu/mpc824x/u-boot.lds diff --git a/arch/ppc/cpu/mpc824x/cpu.c b/arch/ppc/cpu/mpc824x/cpu.c new file mode 100644 index 0000000..08f6a94 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/cpu.c @@ -0,0 +1,280 @@ +/* + * (C) Copyright 2000 - 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <mpc824x.h> +#include <common.h> +#include <command.h> + +DECLARE_GLOBAL_DATA_PTR; + +int checkcpu (void) +{ + unsigned int pvr = get_pvr (); + unsigned int version = pvr >> 16; + unsigned char revision; + ulong clock = gd->cpu_clk; + char buf[32]; + + puts ("CPU: "); + + switch (version) { + case CPU_TYPE_8240: + puts ("MPC8240"); + break; + + case CPU_TYPE_8245: + puts ("MPC8245"); + break; + + default: + return -1; /*not valid for this source */ + } + + CONFIG_READ_BYTE (REVID, revision); + + if (revision) { + printf (" Revision %d.%d", + (revision & 0xf0) >> 4, + (revision & 0x0f)); + } else { + return -1; /* no valid CPU revision info */ + } + + printf (" at %s MHz:", strmhz (buf, clock)); + + printf (" %u kB I-Cache", checkicache () >> 10); + printf (" %u kB D-Cache", checkdcache () >> 10); + + puts ("\n"); + + return 0; +} + +/* ------------------------------------------------------------------------- */ +/* L1 i-cache */ + +int checkicache (void) +{ + /*TODO*/ + return 128 * 4 * 32; +}; + +/* ------------------------------------------------------------------------- */ +/* L1 d-cache */ + +int checkdcache (void) +{ + /*TODO*/ + return 128 * 4 * 32; + +}; + +/*------------------------------------------------------------------- */ + +int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + ulong msr, addr; + + /* Interrupts and MMU off */ + __asm__ ("mtspr 81, 0"); + + /* Interrupts and MMU off */ + __asm__ __volatile__ ("mfmsr %0":"=r" (msr):); + + msr &= ~0x1030; + __asm__ __volatile__ ("mtmsr %0"::"r" (msr)); + + /* + * Trying to execute the next instruction at a non-existing address + * should cause a machine check, resulting in reset + */ +#ifdef CONFIG_SYS_RESET_ADDRESS + addr = CONFIG_SYS_RESET_ADDRESS; +#else + /* + * note: when CONFIG_SYS_MONITOR_BASE points to a RAM address, + * CONFIG_SYS_MONITOR_BASE - sizeof (ulong) is usually a valid + * address. Better pick an address known to be invalid on + * your system and assign it to CONFIG_SYS_RESET_ADDRESS. + * "(ulong)-1" used to be a good choice for many systems... + */ + addr = CONFIG_SYS_MONITOR_BASE - sizeof (ulong); +#endif + ((void (*)(void)) addr) (); + return 1; + +} + +/* ------------------------------------------------------------------------- */ + +/* + * Get timebase clock frequency (like cpu_clk in Hz) + * This is the sys_logic_clk (memory bus) divided by 4 + */ +unsigned long get_tbclk (void) +{ + return ((get_bus_freq (0) + 2L) / 4L); +} + +/* ------------------------------------------------------------------------- */ + +/* + * The MPC824x has an integrated PCI controller known as the MPC107. + * The following are MPC107 Bridge Controller and PCI Support functions + * + */ + +/* + * This procedure reads a 32-bit address MPC107 register, and returns + * a 32 bit value. It swaps the address to little endian before + * writing it to config address, and swaps the value to big endian + * before returning to the caller. + */ +unsigned int mpc824x_mpc107_getreg (unsigned int regNum) +{ + unsigned int temp; + + /* swap the addr. to little endian */ + *(volatile unsigned int *) CHRP_REG_ADDR = PCISWAP (regNum); + temp = *(volatile unsigned int *) CHRP_REG_DATA; + return PCISWAP (temp); /* swap the data upon return */ +} + +/* + * This procedure writes a 32-bit address MPC107 register. It swaps + * the address to little endian before writing it to config address. + */ + +void mpc824x_mpc107_setreg (unsigned int regNum, unsigned int regVal) +{ + /* swap the addr. to little endian */ + *(volatile unsigned int *) CHRP_REG_ADDR = PCISWAP (regNum); + *(volatile unsigned int *) CHRP_REG_DATA = PCISWAP (regVal); + return; +} + + +/* + * Write a byte (8 bits) to a memory location. + */ +void mpc824x_mpc107_write8 (unsigned int addr, unsigned char data) +{ + *(unsigned char *) addr = data; + __asm__ ("sync"); +} + +/* + * Write a word (16 bits) to a memory location after the value + * has been byte swapped (big to little endian or vice versa) + */ + +void mpc824x_mpc107_write16 (unsigned int address, unsigned short data) +{ + *(volatile unsigned short *) address = BYTE_SWAP_16_BIT (data); + __asm__ ("sync"); +} + +/* + * Write a long word (32 bits) to a memory location after the value + * has been byte swapped (big to little endian or vice versa) + */ + +void mpc824x_mpc107_write32 (unsigned int address, unsigned int data) +{ + *(volatile unsigned int *) address = LONGSWAP (data); + __asm__ ("sync"); +} + +/* + * Read a byte (8 bits) from a memory location. + */ +unsigned char mpc824x_mpc107_read8 (unsigned int addr) +{ + return *(volatile unsigned char *) addr; +} + + +/* + * Read a word (16 bits) from a memory location, and byte swap the + * value before returning to the caller. + */ +unsigned short mpc824x_mpc107_read16 (unsigned int address) +{ + unsigned short retVal; + + retVal = BYTE_SWAP_16_BIT (*(unsigned short *) address); + return retVal; +} + + +/* + * Read a long word (32 bits) from a memory location, and byte + * swap the value before returning to the caller. + */ +unsigned int mpc824x_mpc107_read32 (unsigned int address) +{ + unsigned int retVal; + + retVal = LONGSWAP (*(unsigned int *) address); + return (retVal); +} + + +/* + * Read a register in the Embedded Utilities Memory Block address + * space. + * Input: regNum - register number + utility base address. Example, + * the base address of EPIC is 0x40000, the register number + * being passed is 0x40000+the address of the target register. + * (See epic.h for register addresses). + * Output: The 32 bit little endian value of the register. + */ + +unsigned int mpc824x_eummbar_read (unsigned int regNum) +{ + unsigned int temp; + + temp = *(volatile unsigned int *) (EUMBBAR_VAL + regNum); + temp = PCISWAP (temp); + return temp; +} + + +/* + * Write a value to a register in the Embedded Utilities Memory + * Block address space. + * Input: regNum - register number + utility base address. Example, + * the base address of EPIC is 0x40000, the register + * number is 0x40000+the address of the target register. + * (See epic.h for register addresses). + * regVal - value to be written to the register. + */ + +void mpc824x_eummbar_write (unsigned int regNum, unsigned int regVal) +{ + *(volatile unsigned int *) (EUMBBAR_VAL + regNum) = PCISWAP (regVal); + return; +} + +/* ------------------------------------------------------------------------- */ diff --git a/arch/ppc/cpu/mpc824x/cpu_init.c b/arch/ppc/cpu/mpc824x/cpu_init.c new file mode 100644 index 0000000..395f776 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/cpu_init.c @@ -0,0 +1,417 @@ +/* + * (C) Copyright 2000 + * Rob Taylor. Flying Pig Systems. robt@flyingpig.com. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/processor.h> +#include <mpc824x.h> + +#ifndef CONFIG_SYS_BANK0_ROW +#define CONFIG_SYS_BANK0_ROW 0 +#endif +#ifndef CONFIG_SYS_BANK1_ROW +#define CONFIG_SYS_BANK1_ROW 0 +#endif +#ifndef CONFIG_SYS_BANK2_ROW +#define CONFIG_SYS_BANK2_ROW 0 +#endif +#ifndef CONFIG_SYS_BANK3_ROW +#define CONFIG_SYS_BANK3_ROW 0 +#endif +#ifndef CONFIG_SYS_BANK4_ROW +#define CONFIG_SYS_BANK4_ROW 0 +#endif +#ifndef CONFIG_SYS_BANK5_ROW +#define CONFIG_SYS_BANK5_ROW 0 +#endif +#ifndef CONFIG_SYS_BANK6_ROW +#define CONFIG_SYS_BANK6_ROW 0 +#endif +#ifndef CONFIG_SYS_BANK7_ROW +#define CONFIG_SYS_BANK7_ROW 0 +#endif +#ifndef CONFIG_SYS_DBUS_SIZE2 +#define CONFIG_SYS_DBUS_SIZE2 0 +#endif + +/* + * Breath some life into the CPU... + * + * Set up the memory map, + * initialize a bunch of registers, + */ +void +cpu_init_f (void) +{ +/* MOUSSE board is initialized in asm */ +#if !defined(CONFIG_MOUSSE) && !defined(CONFIG_BMW) + register unsigned long val; + CONFIG_WRITE_HALFWORD(PCICR, 0x06); /* Bus Master, respond to PCI memory space acesses*/ +/* CONFIG_WRITE_HALFWORD(PCISR, 0xffff); */ /*reset PCISR*/ + +#if defined(CONFIG_MUSENKI) || defined(CONFIG_PN62) +/* Why is this here, you ask? Try, just try setting 0x8000 + * in PCIACR with CONFIG_WRITE_HALFWORD() + * this one was a stumper, and we are annoyed + */ + +#define M_CONFIG_WRITE_HALFWORD( addr, data ) \ + __asm__ __volatile__(" \ + stw %2,0(%0)\n \ + sync\n \ + sth %3,2(%1)\n \ + sync\n \ + " \ + : /* no output */ \ + : "r" (CONFIG_ADDR), "r" (CONFIG_DATA), \ + "r" (PCISWAP(addr & ~3)), "r" (PCISWAP(data << 16)) \ + ); + + M_CONFIG_WRITE_HALFWORD(PCIACR, 0x8000); +#endif + + CONFIG_WRITE_BYTE(PCLSR, 0x8); /* set PCI cache line size */ + CONFIG_WRITE_BYTE (PLTR, 0x40); /* set PCI latency timer */ + /* + * Note that although this bit is cleared after a hard reset, it + * must be explicitly set and then cleared by software during + * initialization in order to guarantee correct operation of the + * DLL and the SDRAM_CLK[0:3] signals (if they are used). + */ + CONFIG_READ_BYTE (AMBOR, val); + CONFIG_WRITE_BYTE(AMBOR, val & 0xDF); + CONFIG_WRITE_BYTE(AMBOR, val | 0x20); + CONFIG_WRITE_BYTE(AMBOR, val & 0xDF); +#ifdef CONFIG_MPC8245 + /* silicon bug 28 MPC8245 */ + CONFIG_READ_BYTE(AMBOR,val); + CONFIG_WRITE_BYTE(AMBOR,val|0x1); + +#if 0 + /* + * The following bug only affects older (XPC8245) processors. + * DMA transfers initiated by external devices get corrupted due + * to a hardware scheduling problem. + * + * The effect is: + * when transferring X words, the first 32 words are transferred + * OK, the next 3 x 32 words are 'old' data (from previous DMA) + * while the rest of the X words is xferred fine. + * + * Disabling 3 of the 4 32 word hardware buffers solves the problem + * with no significant performance loss. + */ + + CONFIG_READ_BYTE(PCMBCR,val); + /* in order not to corrupt data which is being read over the PCI bus + * with the PPC as slave, we need to reduce the number of PCMRBs to 1, + * 4.11 in the processor user manual + * */ + +#if 1 + CONFIG_WRITE_BYTE(PCMBCR,(val|0xC0)); /* 1 PCMRB */ +#else + CONFIG_WRITE_BYTE(PCMBCR,(val|0x80)); /* 2 PCMRBs */ + CONFIG_WRITE_BYTE(PCMBCR,(val|0x40)); /* 3 PCMRBs */ + /* default, 4 PCMRBs are used */ +#endif +#endif +#endif + + CONFIG_READ_WORD(PICR1, val); +#if defined(CONFIG_MPC8240) + CONFIG_WRITE_WORD( PICR1, + (val & (PICR1_ADDRESS_MAP | PICR1_RCS0)) | + PIRC1_MSK | PICR1_PROC_TYPE_603E | + PICR1_FLASH_WR_EN | PICR1_MCP_EN | + PICR1_CF_DPARK | PICR1_EN_PCS | + PICR1_CF_APARK ); +#elif defined(CONFIG_MPC8245) + CONFIG_WRITE_WORD( PICR1, + (val & (PICR1_RCS0)) | + PICR1_PROC_TYPE_603E | + PICR1_FLASH_WR_EN | PICR1_MCP_EN | + PICR1_CF_DPARK | PICR1_NO_BUSW_CK | + PICR1_DEC| PICR1_CF_APARK | 0x10); /* 8245 UM says bit 4 must be set */ +#else +#error Specific type of MPC824x must be defined (i.e. CONFIG_MPC8240) +#endif + + CONFIG_READ_WORD(PICR2, val); + val= val & ~ (PICR2_CF_SNOOP_WS_MASK | PICR2_CF_APHASE_WS_MASK); /*mask off waitstate bits*/ +#ifndef CONFIG_PN62 + val |= PICR2_CF_SNOOP_WS_1WS | PICR2_CF_APHASE_WS_1WS; /*1 wait state*/ +#endif + CONFIG_WRITE_WORD(PICR2, val); + + CONFIG_WRITE_WORD(EUMBBAR, CONFIG_SYS_EUMB_ADDR); +#ifndef CONFIG_SYS_RAMBOOT + CONFIG_WRITE_WORD(MCCR1, (CONFIG_SYS_ROMNAL << MCCR1_ROMNAL_SHIFT) | + (CONFIG_SYS_BANK0_ROW) | + (CONFIG_SYS_BANK1_ROW << MCCR1_BANK1ROW_SHIFT) | + (CONFIG_SYS_BANK2_ROW << MCCR1_BANK2ROW_SHIFT) | + (CONFIG_SYS_BANK3_ROW << MCCR1_BANK3ROW_SHIFT) | + (CONFIG_SYS_BANK4_ROW << MCCR1_BANK4ROW_SHIFT) | + (CONFIG_SYS_BANK5_ROW << MCCR1_BANK5ROW_SHIFT) | + (CONFIG_SYS_BANK6_ROW << MCCR1_BANK6ROW_SHIFT) | + (CONFIG_SYS_BANK7_ROW << MCCR1_BANK7ROW_SHIFT) | + (CONFIG_SYS_ROMFAL << MCCR1_ROMFAL_SHIFT)); +#endif + +#if defined(CONFIG_SYS_ASRISE) && defined(CONFIG_SYS_ASFALL) + CONFIG_WRITE_WORD(MCCR2, CONFIG_SYS_REFINT << MCCR2_REFINT_SHIFT | + CONFIG_SYS_ASRISE << MCCR2_ASRISE_SHIFT | + CONFIG_SYS_ASFALL << MCCR2_ASFALL_SHIFT); +#else + CONFIG_WRITE_WORD(MCCR2, CONFIG_SYS_REFINT << MCCR2_REFINT_SHIFT); +#endif + +#if defined(CONFIG_MPC8240) + CONFIG_WRITE_WORD(MCCR3, + (((CONFIG_SYS_BSTOPRE & 0x003c) >> 2) << MCCR3_BSTOPRE2TO5_SHIFT) | + (CONFIG_SYS_REFREC << MCCR3_REFREC_SHIFT) | + (CONFIG_SYS_RDLAT << MCCR3_RDLAT_SHIFT)); +#elif defined(CONFIG_MPC8245) + CONFIG_WRITE_WORD(MCCR3, + (((CONFIG_SYS_BSTOPRE & 0x003c) >> 2) << MCCR3_BSTOPRE2TO5_SHIFT) | + (CONFIG_SYS_REFREC << MCCR3_REFREC_SHIFT)); +#else +#error Specific type of MPC824x must be defined (i.e. CONFIG_MPC8240) +#endif + +/* this is gross. We think these should all be the same, and various boards + * should define CONFIG_SYS_ACTORW to 0 if they don't want to set it, or even, if + * its not set, we define it to zero in this file + */ +#if defined(CONFIG_CU824) || defined(CONFIG_PN62) + CONFIG_WRITE_WORD(MCCR4, + (CONFIG_SYS_PRETOACT << MCCR4_PRETOACT_SHIFT) | + (CONFIG_SYS_ACTTOPRE << MCCR4_ACTTOPRE_SHIFT) | + MCCR4_BIT21 | + (CONFIG_SYS_REGISTERD_TYPE_BUFFER ? MCCR4_REGISTERED: 0) | + ((CONFIG_SYS_BSTOPRE & 0x0003) <<MCCR4_BSTOPRE0TO1_SHIFT ) | + (((CONFIG_SYS_SDMODE_CAS_LAT <<4) | (CONFIG_SYS_SDMODE_WRAP <<3) | + CONFIG_SYS_SDMODE_BURSTLEN) << MCCR4_SDMODE_SHIFT) | + (CONFIG_SYS_ACTORW << MCCR4_ACTTORW_SHIFT) | + (((CONFIG_SYS_BSTOPRE & 0x03c0) >> 6) << MCCR4_BSTOPRE6TO9_SHIFT)); +#elif defined(CONFIG_MPC8240) + CONFIG_WRITE_WORD(MCCR4, + (CONFIG_SYS_PRETOACT << MCCR4_PRETOACT_SHIFT) | + (CONFIG_SYS_ACTTOPRE << MCCR4_ACTTOPRE_SHIFT) | + MCCR4_BIT21 | + (CONFIG_SYS_REGISTERD_TYPE_BUFFER ? MCCR4_REGISTERED: 0) | + ((CONFIG_SYS_BSTOPRE & 0x0003) <<MCCR4_BSTOPRE0TO1_SHIFT ) | + (((CONFIG_SYS_SDMODE_CAS_LAT <<4) | (CONFIG_SYS_SDMODE_WRAP <<3) | + (CONFIG_SYS_SDMODE_BURSTLEN)) <<MCCR4_SDMODE_SHIFT) | + (((CONFIG_SYS_BSTOPRE & 0x03c0) >> 6) <<MCCR4_BSTOPRE6TO9_SHIFT )); +#elif defined(CONFIG_MPC8245) + CONFIG_READ_WORD(MCCR1, val); + val &= MCCR1_DBUS_SIZE0; /* test for 64-bit mem bus */ + + CONFIG_WRITE_WORD(MCCR4, + (CONFIG_SYS_PRETOACT << MCCR4_PRETOACT_SHIFT) | + (CONFIG_SYS_ACTTOPRE << MCCR4_ACTTOPRE_SHIFT) | + (CONFIG_SYS_EXTROM ? MCCR4_EXTROM : 0) | + (CONFIG_SYS_REGDIMM ? MCCR4_REGDIMM : 0) | + (CONFIG_SYS_REGISTERD_TYPE_BUFFER ? MCCR4_REGISTERED: 0) | + ((CONFIG_SYS_BSTOPRE & 0x0003) <<MCCR4_BSTOPRE0TO1_SHIFT ) | + (CONFIG_SYS_DBUS_SIZE2 << MCCR4_DBUS_SIZE2_SHIFT) | + (((CONFIG_SYS_SDMODE_CAS_LAT <<4) | (CONFIG_SYS_SDMODE_WRAP <<3) | + (val ? 2 : 3)) << MCCR4_SDMODE_SHIFT) | + (CONFIG_SYS_ACTORW << MCCR4_ACTTORW_SHIFT) | + (((CONFIG_SYS_BSTOPRE & 0x03c0) >> 6) <<MCCR4_BSTOPRE6TO9_SHIFT )); +#else +#error Specific type of MPC824x must be defined (i.e. CONFIG_MPC8240) +#endif + + CONFIG_WRITE_WORD(MSAR1, + ( (CONFIG_SYS_BANK0_START & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) | + (((CONFIG_SYS_BANK1_START & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) << 8) | + (((CONFIG_SYS_BANK2_START & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) << 16) | + (((CONFIG_SYS_BANK3_START & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) << 24)); + CONFIG_WRITE_WORD(EMSAR1, + ( (CONFIG_SYS_BANK0_START & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) | + (((CONFIG_SYS_BANK1_START & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) << 8) | + (((CONFIG_SYS_BANK2_START & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) << 16) | + (((CONFIG_SYS_BANK3_START & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) << 24)); + CONFIG_WRITE_WORD(MSAR2, + ( (CONFIG_SYS_BANK4_START & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) | + (((CONFIG_SYS_BANK5_START & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) << 8) | + (((CONFIG_SYS_BANK6_START & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) << 16) | + (((CONFIG_SYS_BANK7_START & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) << 24)); + CONFIG_WRITE_WORD(EMSAR2, + ( (CONFIG_SYS_BANK4_START & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) | + (((CONFIG_SYS_BANK5_START & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) << 8) | + (((CONFIG_SYS_BANK6_START & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) << 16) | + (((CONFIG_SYS_BANK7_START & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) << 24)); + CONFIG_WRITE_WORD(MEAR1, + ( (CONFIG_SYS_BANK0_END & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) | + (((CONFIG_SYS_BANK1_END & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) << 8) | + (((CONFIG_SYS_BANK2_END & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) << 16) | + (((CONFIG_SYS_BANK3_END & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) << 24)); + CONFIG_WRITE_WORD(EMEAR1, + ( (CONFIG_SYS_BANK0_END & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) | + (((CONFIG_SYS_BANK1_END & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) << 8) | + (((CONFIG_SYS_BANK2_END & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) << 16) | + (((CONFIG_SYS_BANK3_END & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) << 24)); + CONFIG_WRITE_WORD(MEAR2, + ( (CONFIG_SYS_BANK4_END & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) | + (((CONFIG_SYS_BANK5_END & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) << 8) | + (((CONFIG_SYS_BANK6_END & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) << 16) | + (((CONFIG_SYS_BANK7_END & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) << 24)); + CONFIG_WRITE_WORD(EMEAR2, + ( (CONFIG_SYS_BANK4_END & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) | + (((CONFIG_SYS_BANK5_END & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) << 8) | + (((CONFIG_SYS_BANK6_END & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) << 16) | + (((CONFIG_SYS_BANK7_END & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) << 24)); + + CONFIG_WRITE_BYTE(ODCR, CONFIG_SYS_ODCR); +#ifdef CONFIG_SYS_DLL_MAX_DELAY + CONFIG_WRITE_BYTE(MIOCR1, CONFIG_SYS_DLL_MAX_DELAY); /* needed to make DLL lock */ +#endif +#if defined(CONFIG_SYS_DLL_EXTEND) && defined(CONFIG_SYS_PCI_HOLD_DEL) + CONFIG_WRITE_BYTE(PMCR2, CONFIG_SYS_DLL_EXTEND | CONFIG_SYS_PCI_HOLD_DEL); +#endif +#if defined(MIOCR2) && defined(CONFIG_SYS_SDRAM_DSCD) + CONFIG_WRITE_BYTE(MIOCR2, CONFIG_SYS_SDRAM_DSCD); /* change memory input */ +#endif /* setup & hold time */ + + CONFIG_WRITE_BYTE(MBER, + CONFIG_SYS_BANK0_ENABLE | + (CONFIG_SYS_BANK1_ENABLE << 1) | + (CONFIG_SYS_BANK2_ENABLE << 2) | + (CONFIG_SYS_BANK3_ENABLE << 3) | + (CONFIG_SYS_BANK4_ENABLE << 4) | + (CONFIG_SYS_BANK5_ENABLE << 5) | + (CONFIG_SYS_BANK6_ENABLE << 6) | + (CONFIG_SYS_BANK7_ENABLE << 7)); + +#ifdef CONFIG_SYS_PGMAX + CONFIG_WRITE_BYTE(MPMR, CONFIG_SYS_PGMAX); +#endif + + /* ! Wait 200us before initialize other registers */ + /*FIXME: write a decent udelay wait */ + __asm__ __volatile__( + " mtctr %0 \n \ + 0: bdnz 0b\n" + : + : "r" (0x10000)); + + CONFIG_READ_WORD(MCCR1, val); + CONFIG_WRITE_WORD(MCCR1, val | MCCR1_MEMGO); /* set memory access going */ + __asm__ __volatile__("eieio"); + +#endif /* !CONFIG_MOUSSE && !CONFIG_BMW */ +} + + +#ifdef CONFIG_MOUSSE +#ifdef INCLUDE_MPC107_REPORT +struct MPC107_s { + unsigned int iobase; + char desc[120]; +} MPC107Regs[] = { + { BMC_BASE + 0x00, "MPC107 Vendor/Device ID" }, + { BMC_BASE + 0x04, "MPC107 PCI Command/Status Register" }, + { BMC_BASE + 0x08, "MPC107 Revision" }, + { BMC_BASE + 0x0C, "MPC107 Cache Line Size" }, + { BMC_BASE + 0x10, "MPC107 LMBAR" }, + { BMC_BASE + 0x14, "MPC824x PCSR" }, + { BMC_BASE + 0xA8, "MPC824x PICR1" }, + { BMC_BASE + 0xAC, "MPC824x PICR2" }, + { BMC_BASE + 0x46, "MPC824x PACR" }, + { BMC_BASE + 0x310, "MPC824x ITWR" }, + { BMC_BASE + 0x300, "MPC824x OMBAR" }, + { BMC_BASE + 0x308, "MPC824x OTWR" }, + { BMC_BASE + 0x14, "MPC107 Peripheral Control and Status Register" }, + { BMC_BASE + 0x78, "MPC107 EUMBAR" }, + { BMC_BASE + 0xC0, "MPC107 Processor Bus Error Status" }, + { BMC_BASE + 0xC4, "MPC107 PCI Bus Error Status" }, + { BMC_BASE + 0xC8, "MPC107 Processor/PCI Error Address" }, + { BMC_BASE + 0xE0, "MPC107 AMBOR Register" }, + { BMC_BASE + 0xF0, "MPC107 MCCR1 Register" }, + { BMC_BASE + 0xF4, "MPC107 MCCR2 Register" }, + { BMC_BASE + 0xF8, "MPC107 MCCR3 Register" }, + { BMC_BASE + 0xFC, "MPC107 MCCR4 Register" }, +}; +#define N_MPC107_Regs (sizeof(MPC107Regs)/sizeof(MPC107Regs[0])) +#endif /* INCLUDE_MPC107_REPORT */ +#endif /* CONFIG_MOUSSE */ + +/* + * initialize higher level parts of CPU like time base and timers + */ +int cpu_init_r (void) +{ +#ifdef CONFIG_MOUSSE +#ifdef INCLUDE_MPC107_REPORT + unsigned int tmp = 0, i; +#endif + /* + * Initialize the EUMBBAR (Embedded Util Mem Block Base Addr Reg). + * This is necessary before the EPIC, DMA ctlr, I2C ctlr, etc. can + * be accessed. + */ + +#ifdef CONFIG_MPC8240 /* only on MPC8240 */ + mpc824x_mpc107_setreg (EUMBBAR, EUMBBAR_VAL); + /* MOT/SPS: Issue #10002, PCI (FD Alias enable) */ + mpc824x_mpc107_setreg (AMBOR, 0x000000C0); +#endif + + +#ifdef INCLUDE_MPC107_REPORT + /* Check MPC824x PCI Device and Vendor ID */ + while ((tmp = mpc824x_mpc107_getreg (BMC_BASE)) != 0x31057) { + printf (" MPC107: offset=0x%x, val = 0x%x\n", + BMC_BASE, + tmp); + } + + for (i = 0; i < N_MPC107_Regs; i++) { + printf (" 0x%x/%s = 0x%x\n", + MPC107Regs[i].iobase, + MPC107Regs[i].desc, + mpc824x_mpc107_getreg (MPC107Regs[i].iobase)); + } + + printf ("IBAT0L = 0x%08X\n", mfspr (IBAT0L)); + printf ("IBAT0U = 0x%08X\n", mfspr (IBAT0U)); + printf ("IBAT1L = 0x%08X\n", mfspr (IBAT1L)); + printf ("IBAT1U = 0x%08X\n", mfspr (IBAT1U)); + printf ("IBAT2L = 0x%08X\n", mfspr (IBAT2L)); + printf ("IBAT2U = 0x%08X\n", mfspr (IBAT2U)); + printf ("IBAT3L = 0x%08X\n", mfspr (IBAT3L)); + printf ("IBAT3U = 0x%08X\n", mfspr (IBAT3U)); + printf ("DBAT0L = 0x%08X\n", mfspr (DBAT0L)); + printf ("DBAT0U = 0x%08X\n", mfspr (DBAT0U)); + printf ("DBAT1L = 0x%08X\n", mfspr (DBAT1L)); + printf ("DBAT1U = 0x%08X\n", mfspr (DBAT1U)); + printf ("DBAT2L = 0x%08X\n", mfspr (DBAT2L)); + printf ("DBAT2U = 0x%08X\n", mfspr (DBAT2U)); + printf ("DBAT3L = 0x%08X\n", mfspr (DBAT3L)); + printf ("DBAT3U = 0x%08X\n", mfspr (DBAT3U)); +#endif /* INCLUDE_MPC107_REPORT */ +#endif /* CONFIG_MOUSSE */ + return (0); +} diff --git a/arch/ppc/cpu/mpc824x/drivers/epic.h b/arch/ppc/cpu/mpc824x/drivers/epic.h new file mode 100644 index 0000000..2803f63 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/drivers/epic.h @@ -0,0 +1 @@ +#include "epic/epic.h" diff --git a/arch/ppc/cpu/mpc824x/drivers/epic/README b/arch/ppc/cpu/mpc824x/drivers/epic/README new file mode 100644 index 0000000..5798996 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/drivers/epic/README @@ -0,0 +1,102 @@ +CONTENT: + + epic.h + epic1.c + epic2.s + +WHAT ARE THESE FILES: + +These files contain MPC8240 (Kahlua) EPIC +driver routines. The driver routines are not +written for any specific operating system. +They serves the purpose of code sample, and +jump-start for using the MPC8240 EPIC unit. + +For the reason of correctness of C language +syntax, these files are compiled by Metaware +C compiler and assembler. + +ENDIAN NOTATION: + +The algorithm is designed for big-endian mode, +software is responsible for byte swapping. + +USAGE: + +1. The host system that is running on MPC8240 + shall link the files listed here. The memory + location of driver routines shall take into + account of that driver routines need to run + in supervisor mode and they process external + interrupts. + + The routine epic_exception shall be called by + exception vector at location 0x500, i.e., + 603e core external exception vector. + +2. The host system is responsible for configuring + the MPC8240 including Embedded Utilities Memory + Block. All EPIC driver functions require the + content of Embedded Utilities Memory Block + Base Address Register, EUMBBAR, as the first + parameter. + +3. Before EPIC unit of MPC8240 can be used, + initialize EPIC unit by calling epicInit + with the corresponding parameters. + + The initialization shall disable the 603e + core External Exception by calling CoreExtIntDisable( ). + Next, call epicInit( ). Last, enable the 603e core + External Exception by calling CoreExtIntEnable( ). + +4. After EPIC unit has been successfully initialized, + epicIntSourceSet( ) shall be used to register each + external interrupt source. Anytime, an external + interrupt source can be disabled or enabled by + calling corresponding function, epicIntDisable( ), + or epicIntEnable( ). + + Global Timers' resource, base count and frequency, + can be changed by calling epicTmFrequencySet( ) + and epicTmBaseSet( ). + + To stop counting a specific global timer, use + the function, epicTmInhibit while epicTmEnable + can be used to start counting a timer. + +5. To mask a set of external interrupts that are + are certain level below, epicIntPrioritySet( ) + can be used. For example, if the processor's + current task priority register is set to 0x7, + only interrupts of priority 0x8 or higher will + be passed to the processor. + + Be careful when using this function. It may + corrupt the current interrupt pending, selector, + and request registers, resulting an invalid vetor. + + After enabling an interrupt, disable it may also + cause an invalid vector. User may consider using + the spurious vector interrupt service routine to + handle this case. + +6. The EPIC driver routines contains a set + of utilities, Set and Get, for host system + to query and modify the desired EPIC source + registers. + +7. Each external interrupt source shall register + its interrupt service routine. The routine + shall contain all interrupt source specific + processes and keep as short as possible. + + Special customized end of interrupt routine + is optional. If it is needed, it shall contain + the external interrupt source specific end of + interrupt process. + + External interrupt exception vector at 0x500 + shall always call the epicEOI just before + rfi instruction. Refer to the routine, + epic_exception, for a code sample. diff --git a/arch/ppc/cpu/mpc824x/drivers/epic/epic.h b/arch/ppc/cpu/mpc824x/drivers/epic/epic.h new file mode 100644 index 0000000..58f81c5 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/drivers/epic/epic.h @@ -0,0 +1,163 @@ +/********************************************************************* + * mpc8240epic.h - EPIC module of the MPC8240 micro-controller + * + * Copyrigh 1999 Motorola Inc. + * + * Modification History: + * ===================== + * 01a,04Feb99,My Created. + * 15Nov200, robt -modified to use in U-Boot + * +*/ + +#ifndef __INCEPICh +#define __INCEPICh + +#define ULONG unsigned long +#define MAXVEC 20 +#define MAXIRQ 5 /* IRQs */ +#define EPIC_DIRECT_IRQ 0 /* Direct interrupt type */ + +/* EPIC register addresses */ + +#define EPIC_EUMBBAR 0x40000 /* EUMBBAR of EPIC */ +#define EPIC_FEATURES_REG (EPIC_EUMBBAR + 0x01000)/* Feature reporting */ +#define EPIC_GLOBAL_REG (EPIC_EUMBBAR + 0x01020)/* Global config. */ +#define EPIC_INT_CONF_REG (EPIC_EUMBBAR + 0x01030)/* Interrupt config. */ +#define EPIC_VENDOR_ID_REG (EPIC_EUMBBAR + 0x01080)/* Vendor id */ +#define EPIC_PROC_INIT_REG (EPIC_EUMBBAR + 0x01090)/* Processor init. */ +#define EPIC_SPUR_VEC_REG (EPIC_EUMBBAR + 0x010e0)/* Spurious vector */ +#define EPIC_TM_FREQ_REG (EPIC_EUMBBAR + 0x010f0)/* Timer Frequency */ + +#define EPIC_TM0_CUR_COUNT_REG (EPIC_EUMBBAR + 0x01100)/* Gbl TM0 Cur. Count*/ +#define EPIC_TM0_BASE_COUNT_REG (EPIC_EUMBBAR + 0x01110)/* Gbl TM0 Base Count*/ +#define EPIC_TM0_VEC_REG (EPIC_EUMBBAR + 0x01120)/* Gbl TM0 Vector Pri*/ +#define EPIC_TM0_DES_REG (EPIC_EUMBBAR + 0x01130)/* Gbl TM0 Dest. */ + +#define EPIC_TM1_CUR_COUNT_REG (EPIC_EUMBBAR + 0x01140)/* Gbl TM1 Cur. Count*/ +#define EPIC_TM1_BASE_COUNT_REG (EPIC_EUMBBAR + 0x01150)/* Gbl TM1 Base Count*/ +#define EPIC_TM1_VEC_REG (EPIC_EUMBBAR + 0x01160)/* Gbl TM1 Vector Pri*/ +#define EPIC_TM1_DES_REG (EPIC_EUMBBAR + 0x01170)/* Gbl TM1 Dest. */ + +#define EPIC_TM2_CUR_COUNT_REG (EPIC_EUMBBAR + 0x01180)/* Gbl TM2 Cur. Count*/ +#define EPIC_TM2_BASE_COUNT_REG (EPIC_EUMBBAR + 0x01190)/* Gbl TM2 Base Count*/ +#define EPIC_TM2_VEC_REG (EPIC_EUMBBAR + 0x011a0)/* Gbl TM2 Vector Pri*/ +#define EPIC_TM2_DES_REG (EPIC_EUMBBAR + 0x011b0)/* Gbl TM2 Dest */ + +#define EPIC_TM3_CUR_COUNT_REG (EPIC_EUMBBAR + 0x011c0)/* Gbl TM3 Cur. Count*/ +#define EPIC_TM3_BASE_COUNT_REG (EPIC_EUMBBAR + 0x011d0)/* Gbl TM3 Base Count*/ +#define EPIC_TM3_VEC_REG (EPIC_EUMBBAR + 0x011e0)/* Gbl TM3 Vector Pri*/ +#define EPIC_TM3_DES_REG (EPIC_EUMBBAR + 0x011f0)/* Gbl TM3 Dest. */ + +#define EPIC_EX_INT0_VEC_REG (EPIC_EUMBBAR + 0x10200)/* Ext. Int. Sr0 Des */ +#define EPIC_EX_INT0_DES_REG (EPIC_EUMBBAR + 0x10210)/* Ext. Int. Sr0 Vect*/ +#define EPIC_EX_INT1_VEC_REG (EPIC_EUMBBAR + 0x10220)/* Ext. Int. Sr1 Des */ +#define EPIC_EX_INT1_DES_REG (EPIC_EUMBBAR + 0x10230)/* Ext. Int. Sr1 Vect*/ +#define EPIC_EX_INT2_VEC_REG (EPIC_EUMBBAR + 0x10240)/* Ext. Int. Sr2 Des */ +#define EPIC_EX_INT2_DES_REG (EPIC_EUMBBAR + 0x10250)/* Ext. Int. Sr2 Vect*/ +#define EPIC_EX_INT3_VEC_REG (EPIC_EUMBBAR + 0x10260)/* Ext. Int. Sr3 Des */ +#define EPIC_EX_INT3_DES_REG (EPIC_EUMBBAR + 0x10270)/* Ext. Int. Sr3 Vect*/ +#define EPIC_EX_INT4_VEC_REG (EPIC_EUMBBAR + 0x10280)/* Ext. Int. Sr4 Des */ +#define EPIC_EX_INT4_DES_REG (EPIC_EUMBBAR + 0x10290)/* Ext. Int. Sr4 Vect*/ + +#define EPIC_SR_INT0_VEC_REG (EPIC_EUMBBAR + 0x10200)/* Sr. Int. Sr0 Des */ +#define EPIC_SR_INT0_DES_REG (EPIC_EUMBBAR + 0x10210)/* Sr. Int. Sr0 Vect */ +#define EPIC_SR_INT1_VEC_REG (EPIC_EUMBBAR + 0x10220)/* Sr. Int. Sr1 Des */ +#define EPIC_SR_INT1_DES_REG (EPIC_EUMBBAR + 0x10230)/* Sr. Int. Sr1 Vect.*/ +#define EPIC_SR_INT2_VEC_REG (EPIC_EUMBBAR + 0x10240)/* Sr. Int. Sr2 Des */ +#define EPIC_SR_INT2_DES_REG (EPIC_EUMBBAR + 0x10250)/* Sr. Int. Sr2 Vect.*/ +#define EPIC_SR_INT3_VEC_REG (EPIC_EUMBBAR + 0x10260)/* Sr. Int. Sr3 Des */ +#define EPIC_SR_INT3_DES_REG (EPIC_EUMBBAR + 0x10270)/* Sr. Int. Sr3 Vect.*/ +#define EPIC_SR_INT4_VEC_REG (EPIC_EUMBBAR + 0x10280)/* Sr. Int. Sr4 Des */ +#define EPIC_SR_INT4_DES_REG (EPIC_EUMBBAR + 0x10290)/* Sr. Int. Sr4 Vect.*/ + +#define EPIC_SR_INT5_VEC_REG (EPIC_EUMBBAR + 0x102a0)/* Sr. Int. Sr5 Des */ +#define EPIC_SR_INT5_DES_REG (EPIC_EUMBBAR + 0x102b0)/* Sr. Int. Sr5 Vect.*/ +#define EPIC_SR_INT6_VEC_REG (EPIC_EUMBBAR + 0x102c0)/* Sr. Int. Sr6 Des */ +#define EPIC_SR_INT6_DES_REG (EPIC_EUMBBAR + 0x102d0)/* Sr. Int. Sr6 Vect.*/ +#define EPIC_SR_INT7_VEC_REG (EPIC_EUMBBAR + 0x102e0)/* Sr. Int. Sr7 Des */ +#define EPIC_SR_INT7_DES_REG (EPIC_EUMBBAR + 0x102f0)/* Sr. Int. Sr7 Vect.*/ +#define EPIC_SR_INT8_VEC_REG (EPIC_EUMBBAR + 0x10300)/* Sr. Int. Sr8 Des */ +#define EPIC_SR_INT8_DES_REG (EPIC_EUMBBAR + 0x10310)/* Sr. Int. Sr8 Vect.*/ +#define EPIC_SR_INT9_VEC_REG (EPIC_EUMBBAR + 0x10320)/* Sr. Int. Sr9 Des */ +#define EPIC_SR_INT9_DES_REG (EPIC_EUMBBAR + 0x10330)/* Sr. Int. Sr9 Vect.*/ + +#define EPIC_SR_INT10_VEC_REG (EPIC_EUMBBAR + 0x10340)/* Sr. Int. Sr10 Des */ +#define EPIC_SR_INT10_DES_REG (EPIC_EUMBBAR + 0x10350)/* Sr. Int. Sr10 Vect*/ +#define EPIC_SR_INT11_VEC_REG (EPIC_EUMBBAR + 0x10360)/* Sr. Int. Sr11 Des */ +#define EPIC_SR_INT11_DES_REG (EPIC_EUMBBAR + 0x10370)/* Sr. Int. Sr11 Vect*/ +#define EPIC_SR_INT12_VEC_REG (EPIC_EUMBBAR + 0x10380)/* Sr. Int. Sr12 Des */ +#define EPIC_SR_INT12_DES_REG (EPIC_EUMBBAR + 0x10390)/* Sr. Int. Sr12 Vect*/ +#define EPIC_SR_INT13_VEC_REG (EPIC_EUMBBAR + 0x103a0)/* Sr. Int. Sr13 Des */ +#define EPIC_SR_INT13_DES_REG (EPIC_EUMBBAR + 0x103b0)/* Sr. Int. Sr13 Vect*/ +#define EPIC_SR_INT14_VEC_REG (EPIC_EUMBBAR + 0x103c0)/* Sr. Int. Sr14 Des */ +#define EPIC_SR_INT14_DES_REG (EPIC_EUMBBAR + 0x103d0)/* Sr. Int. Sr14 Vect*/ +#define EPIC_SR_INT15_VEC_REG (EPIC_EUMBBAR + 0x103e0)/* Sr. Int. Sr15 Des */ +#define EPIC_SR_INT15_DES_REG (EPIC_EUMBBAR + 0x103f0)/* Sr. Int. Sr15 Vect*/ + +#define EPIC_I2C_INT_VEC_REG (EPIC_EUMBBAR + 0x11020)/* I2C Int. Vect Pri.*/ +#define EPIC_I2C_INT_DES_REG (EPIC_EUMBBAR + 0x11030)/* I2C Int. Dest */ +#define EPIC_DMA0_INT_VEC_REG (EPIC_EUMBBAR + 0x11040)/* DMA0 Int. Vect Pri*/ +#define EPIC_DMA0_INT_DES_REG (EPIC_EUMBBAR + 0x11050)/* DMA0 Int. Dest */ +#define EPIC_DMA1_INT_VEC_REG (EPIC_EUMBBAR + 0x11060)/* DMA1 Int. Vect Pri*/ +#define EPIC_DMA1_INT_DES_REG (EPIC_EUMBBAR + 0x11070)/* DMA1 Int. Dest */ +#define EPIC_MSG_INT_VEC_REG (EPIC_EUMBBAR + 0x110c0)/* Msg Int. Vect Pri*/ +#define EPIC_MSG_INT_DES_REG (EPIC_EUMBBAR + 0x110d0)/* Msg Int. Dest */ + +#define EPIC_PROC_CTASK_PRI_REG (EPIC_EUMBBAR + 0x20080)/* Proc. current task*/ +#define EPIC_PROC_INT_ACK_REG (EPIC_EUMBBAR + 0x200a0)/* Int. acknowledge */ +#define EPIC_PROC_EOI_REG (EPIC_EUMBBAR + 0x200b0)/* End of interrupt */ + +#define EPIC_VEC_PRI_MASK 0x80000000 /* Mask Interrupt bit in IVPR */ +#define EPIC_VEC_PRI_DFLT_PRI 8 /* Interrupt Priority in IVPR */ + +/* Error code */ + +#define OK 0 +#define ERROR -1 + +/* function prototypes */ + +void epicVendorId( unsigned int *step, + unsigned int *devId, + unsigned int *venId + ); +void epicFeatures( unsigned int *noIRQs, + unsigned int *noCPUs, + unsigned int *VerId ); +extern void epicInit( unsigned int IRQType, unsigned int clkRatio); +ULONG sysEUMBBARRead ( ULONG regNum ); +void sysEUMBBARWrite ( ULONG regNum, ULONG regVal); +extern void epicTmFrequencySet( unsigned int frq ); +extern unsigned int epicTmFrequencyGet(void); +extern unsigned int epicTmBaseSet( ULONG srcAddr, + unsigned int cnt, + unsigned int inhibit ); +extern unsigned int epicTmBaseGet ( ULONG srcAddr, unsigned int *val ); +extern unsigned int epicTmCountGet( ULONG srcAddr, unsigned int *val ); +extern unsigned int epicTmInhibit( unsigned int timer ); +extern unsigned int epicTmEnable( ULONG srcAdr ); +extern void CoreExtIntEnable(void); /* Enable 603e external interrupts */ +extern void CoreExtIntDisable(void); /* Disable 603e external interrupts */ +extern unsigned char epicIntTaskGet(void); +extern void epicIntTaskSet( unsigned char val ); +extern unsigned int epicIntAck(void); +extern void epicSprSet( unsigned int eumbbar, unsigned char ); +extern void epicConfigGet( unsigned int *clkRatio, + unsigned int *serEnable ); +extern void SrcVecTableInit(void); +extern unsigned int epicModeGet(void); +extern void epicIntEnable(int Vect); +extern void epicIntDisable(int Vect); +extern int epicIntSourceConfig(int Vect, int Polarity, int Sense, int Prio); +extern unsigned int epicIntAck(void); +extern void epicEOI(void); +extern int epicCurTaskPrioSet(int Vect); + +struct SrcVecTable + { + ULONG srcAddr; + char srcName[40]; + }; + +#endif /* EPIC_H */ diff --git a/arch/ppc/cpu/mpc824x/drivers/epic/epic1.c b/arch/ppc/cpu/mpc824x/drivers/epic/epic1.c new file mode 100644 index 0000000..ecbb42d --- /dev/null +++ b/arch/ppc/cpu/mpc824x/drivers/epic/epic1.c @@ -0,0 +1,517 @@ +/************************************************** + * + * copyright @ motorola, 1999 + * + *************************************************/ +#include <mpc824x.h> +#include <common.h> +#include "epic.h" + + +#define PRINT(format, args...) printf(format , ## args) + +typedef void (*VOIDFUNCPTR) (void); /* ptr to function returning void */ +struct SrcVecTable SrcVecTable[MAXVEC] = /* Addr/Vector cross-reference tbl */ + { + { EPIC_EX_INT0_VEC_REG, "External Direct/Serial Source 0"}, + { EPIC_EX_INT1_VEC_REG, "External Direct/Serial Source 1"}, + { EPIC_EX_INT2_VEC_REG, "External Direct/Serial Source 2"}, + { EPIC_EX_INT3_VEC_REG, "External Direct/Serial Source 3"}, + { EPIC_EX_INT4_VEC_REG, "External Direct/Serial Source 4"}, + + { EPIC_SR_INT5_VEC_REG, "External Serial Source 5"}, + { EPIC_SR_INT6_VEC_REG, "External Serial Source 6"}, + { EPIC_SR_INT7_VEC_REG, "External Serial Source 7"}, + { EPIC_SR_INT8_VEC_REG, "External Serial Source 8"}, + { EPIC_SR_INT9_VEC_REG, "External Serial Source 9"}, + { EPIC_SR_INT10_VEC_REG, "External Serial Source 10"}, + { EPIC_SR_INT11_VEC_REG, "External Serial Source 11"}, + { EPIC_SR_INT12_VEC_REG, "External Serial Source 12"}, + { EPIC_SR_INT13_VEC_REG, "External Serial Source 13"}, + { EPIC_SR_INT14_VEC_REG, "External Serial Source 14"}, + { EPIC_SR_INT15_VEC_REG, "External Serial Source 15"}, + + { EPIC_I2C_INT_VEC_REG, "Internal I2C Source"}, + { EPIC_DMA0_INT_VEC_REG, "Internal DMA0 Source"}, + { EPIC_DMA1_INT_VEC_REG, "Internal DMA1 Source"}, + { EPIC_MSG_INT_VEC_REG, "Internal Message Source"}, + }; + +VOIDFUNCPTR intVecTbl[MAXVEC]; /* Interrupt vector table */ + + +/**************************************************************************** +* epicInit - Initialize the EPIC registers +* +* This routine resets the Global Configuration Register, thus it: +* - Disables all interrupts +* - Sets epic registers to reset values +* - Sets the value of the Processor Current Task Priority to the +* highest priority (0xF). +* epicInit then sets the EPIC operation mode to Mixed Mode (vs. Pass +* Through or 8259 compatible mode). +* +* If IRQType (input) is Direct IRQs: +* - IRQType is written to the SIE bit of the EPIC Interrupt +* Configuration register (ICR). +* - clkRatio is ignored. +* If IRQType is Serial IRQs: +* - both IRQType and clkRatio will be written to the ICR register +*/ + +void epicInit + ( + unsigned int IRQType, /* Direct or Serial */ + unsigned int clkRatio /* Clk Ratio for Serial IRQs */ + ) + { + ULONG tmp; + + tmp = sysEUMBBARRead(EPIC_GLOBAL_REG); + tmp |= 0xa0000000; /* Set the Global Conf. register */ + sysEUMBBARWrite(EPIC_GLOBAL_REG, tmp); + /* + * Wait for EPIC to reset - CLH + */ + while( (sysEUMBBARRead(EPIC_GLOBAL_REG) & 0x80000000) == 1); + sysEUMBBARWrite(EPIC_GLOBAL_REG, 0x20000000); + tmp = sysEUMBBARRead(EPIC_INT_CONF_REG); /* Read interrupt conf. reg */ + + if (IRQType == EPIC_DIRECT_IRQ) /* direct mode */ + sysEUMBBARWrite(EPIC_INT_CONF_REG, tmp & 0xf7ffffff); + else /* Serial mode */ + { + tmp = (clkRatio << 28) | 0x08000000; /* Set clock ratio */ + sysEUMBBARWrite(EPIC_INT_CONF_REG, tmp); + } + + while (epicIntAck() != 0xff) /* Clear all pending interrupts */ + epicEOI(); +} + +/**************************************************************************** + * epicIntEnable - Enable an interrupt source + * + * This routine clears the mask bit of an external, an internal or + * a Timer register to enable the interrupt. + * + * RETURNS: None + */ +void epicIntEnable(int intVec) +{ + ULONG tmp; + ULONG srAddr; + + srAddr = SrcVecTable[intVec].srcAddr; /* Retrieve src Vec/Prio register */ + tmp = sysEUMBBARRead(srAddr); + tmp &= ~EPIC_VEC_PRI_MASK; /* Clear the mask bit */ + tmp |= (EPIC_VEC_PRI_DFLT_PRI << 16); /* Set priority to Default - CLH */ + tmp |= intVec; /* Set Vector number */ + sysEUMBBARWrite(srAddr, tmp); + + return; + } + +/**************************************************************************** + * epicIntDisable - Disable an interrupt source + * + * This routine sets the mask bit of an external, an internal or + * a Timer register to disable the interrupt. + * + * RETURNS: OK or ERROR + * + */ + +void epicIntDisable + ( + int intVec /* Interrupt vector number */ + ) + { + + ULONG tmp, srAddr; + + srAddr = SrcVecTable[intVec].srcAddr; + tmp = sysEUMBBARRead(srAddr); + tmp |= 0x80000000; /* Set the mask bit */ + sysEUMBBARWrite(srAddr, tmp); + return; + } + +/**************************************************************************** + * epicIntSourceConfig - Set properties of an interrupt source + * + * This function sets interrupt properites (Polarity, Sense, Interrupt + * Prority, and Interrupt Vector) of an Interrupt Source. The properties + * can be set when the current source is not in-request or in-service, + * which is determined by the Activity bit. This routine return ERROR + * if the the Activity bit is 1 (in-request or in-service). + * + * This function assumes that the Source Vector/Priority register (input) + * is a valid address. + * + * RETURNS: OK or ERROR + */ + +int epicIntSourceConfig + ( + int Vect, /* interrupt source vector number */ + int Polarity, /* interrupt source polarity */ + int Sense, /* interrupt source Sense */ + int Prio /* interrupt source priority */ + ) + + { + ULONG tmp, newVal; + ULONG actBit, srAddr; + + srAddr = SrcVecTable[Vect].srcAddr; + tmp = sysEUMBBARRead(srAddr); + actBit = (tmp & 40000000) >> 30; /* retrieve activity bit - bit 30 */ + if (actBit == 1) + return ERROR; + + tmp &= 0xff30ff00; /* Erase previously set P,S,Prio,Vector bits */ + newVal = (Polarity << 23) | (Sense << 22) | (Prio << 16) | Vect; + sysEUMBBARWrite(srAddr, tmp | newVal ); + return (OK); + } + +/**************************************************************************** + * epicIntAck - acknowledge an interrupt + * + * This function reads the Interrupt acknowldge register and return + * the vector number of the highest pending interrupt. + * + * RETURNS: Interrupt Vector number. + */ + +unsigned int epicIntAck(void) +{ + return(sysEUMBBARRead( EPIC_PROC_INT_ACK_REG )); +} + +/**************************************************************************** + * epicEOI - signal an end of interrupt + * + * This function writes 0x0 to the EOI register to signal end of interrupt. + * It is usually called after an interrupt routine is served. + * + * RETURNS: None + */ + +void epicEOI(void) + { + sysEUMBBARWrite(EPIC_PROC_EOI_REG, 0x0); + } + +/**************************************************************************** + * epicCurTaskPrioSet - sets the priority of the Processor Current Task + * + * This function should be called after epicInit() to lower the priority + * of the processor current task. + * + * RETURNS: OK or ERROR + */ + +int epicCurTaskPrioSet + ( + int prioNum /* New priority value */ + ) + { + + if ( (prioNum < 0) || (prioNum > 0xF)) + return ERROR; + sysEUMBBARWrite(EPIC_PROC_CTASK_PRI_REG, prioNum); + return OK; + } + + +/************************************************************************ + * function: epicIntTaskGet + * + * description: Get value of processor current interrupt task priority register + * + * note: + ***********************************************************************/ +unsigned char epicIntTaskGet() +{ + /* get the interrupt task priority register */ + ULONG reg; + unsigned char rec; + + reg = sysEUMBBARRead( EPIC_PROC_CTASK_PRI_REG ); + rec = ( reg & 0x0F ); + return rec; +} + + +/************************************************************** + * function: epicISR + * + * description: EPIC service routine called by the core exception + * at 0x500 + * + * note: + **************************************************************/ +unsigned int epicISR(void) +{ + return 0; +} + + +/************************************************************ + * function: epicModeGet + * + * description: query EPIC mode, return 0 if pass through mode + * return 1 if mixed mode + * + * note: + *************************************************************/ +unsigned int epicModeGet(void) +{ + ULONG val; + + val = sysEUMBBARRead( EPIC_GLOBAL_REG ); + return (( val & 0x20000000 ) >> 29); +} + + +/********************************************* + * function: epicConfigGet + * + * description: Get the EPIC interrupt Configuration + * return 0 if not error, otherwise return 1 + * + * note: + ********************************************/ +void epicConfigGet( unsigned int *clkRatio, unsigned int *serEnable) +{ + ULONG val; + + val = sysEUMBBARRead( EPIC_INT_CONF_REG ); + *clkRatio = ( val & 0x70000000 ) >> 28; + *serEnable = ( val & 0x8000000 ) >> 27; +} + + +/******************************************************************* + * sysEUMBBARRead - Read a 32-bit EUMBBAR register + * + * This routine reads the content of a register in the Embedded + * Utilities Memory Block, and swaps to big endian before returning + * the value. + * + * RETURNS: The content of the specified EUMBBAR register. + */ + +ULONG sysEUMBBARRead + ( + ULONG regNum + ) + { + ULONG temp; + + temp = *(ULONG *) (CONFIG_SYS_EUMB_ADDR + regNum); + return ( LONGSWAP(temp)); + } + +/******************************************************************* + * sysEUMBBARWrite - Write a 32-bit EUMBBAR register + * + * This routine swaps the value to little endian then writes it to + * a register in the Embedded Utilities Memory Block address space. + * + * RETURNS: N/A + */ + +void sysEUMBBARWrite + ( + ULONG regNum, /* EUMBBAR register address */ + ULONG regVal /* Value to be written */ + ) + { + + *(ULONG *) (CONFIG_SYS_EUMB_ADDR + regNum) = LONGSWAP(regVal); + return ; + } + + +/******************************************************** + * function: epicVendorId + * + * description: return the EPIC Vendor Identification + * register: + * + * siliccon version, device id, and vendor id + * + * note: + ********************************************************/ +void epicVendorId + ( + unsigned int *step, + unsigned int *devId, + unsigned int *venId + ) + { + ULONG val; + val = sysEUMBBARRead( EPIC_VENDOR_ID_REG ); + *step = ( val & 0x00FF0000 ) >> 16; + *devId = ( val & 0x0000FF00 ) >> 8; + *venId = ( val & 0x000000FF ); + } + +/************************************************** + * function: epicFeatures + * + * description: return the number of IRQ supported, + * number of CPU, and the version of the + * OpenEPIC + * + * note: + *************************************************/ +void epicFeatures + ( + unsigned int *noIRQs, + unsigned int *noCPUs, + unsigned int *verId + ) + { + ULONG val; + + val = sysEUMBBARRead( EPIC_FEATURES_REG ); + *noIRQs = ( val & 0x07FF0000 ) >> 16; + *noCPUs = ( val & 0x00001F00 ) >> 8; + *verId = ( val & 0x000000FF ); +} + + +/********************************************************* + * function: epciTmFrequncySet + * + * description: Set the timer frequency reporting register + ********************************************************/ +void epicTmFrequencySet( unsigned int frq ) +{ + sysEUMBBARWrite(EPIC_TM_FREQ_REG, frq); +} + +/******************************************************* + * function: epicTmFrequncyGet + * + * description: Get the current value of the Timer Frequency + * Reporting register + * + ******************************************************/ +unsigned int epicTmFrequencyGet(void) +{ + return( sysEUMBBARRead(EPIC_TM_FREQ_REG)) ; +} + + +/**************************************************** + * function: epicTmBaseSet + * + * description: Set the #n global timer base count register + * return 0 if no error, otherwise return 1. + * + * note: + ****************************************************/ +unsigned int epicTmBaseSet + ( + ULONG srcAddr, /* Address of the Timer Base register */ + unsigned int cnt, /* Base count */ + unsigned int inhibit /* 1 - count inhibit */ + ) +{ + + unsigned int val = 0x80000000; + /* First inhibit counting the timer */ + sysEUMBBARWrite(srcAddr, val) ; + + /* set the new value */ + val = (cnt & 0x7fffffff) | ((inhibit & 0x1) << 31); + sysEUMBBARWrite(srcAddr, val) ; + return 0; +} + +/*********************************************************************** + * function: epicTmBaseGet + * + * description: Get the current value of the global timer base count register + * return 0 if no error, otherwise return 1. + * + * note: + ***********************************************************************/ +unsigned int epicTmBaseGet( ULONG srcAddr, unsigned int *val ) +{ + *val = sysEUMBBARRead( srcAddr ); + *val = *val & 0x7fffffff; + return 0; +} + +/*********************************************************** + * function: epicTmCountGet + * + * description: Get the value of a given global timer + * current count register + * return 0 if no error, otherwise return 1 + * note: + **********************************************************/ +unsigned int epicTmCountGet( ULONG srcAddr, unsigned int *val ) +{ + *val = sysEUMBBARRead( srcAddr ); + *val = *val & 0x7fffffff; + return 0; +} + + +/*********************************************************** + * function: epicTmInhibit + * + * description: Stop counting of a given global timer + * return 0 if no error, otherwise return 1 + * + * note: + ***********************************************************/ +unsigned int epicTmInhibit( unsigned int srcAddr ) +{ + ULONG val; + + val = sysEUMBBARRead( srcAddr ); + val |= 0x80000000; + sysEUMBBARWrite( srcAddr, val ); + return 0; +} + +/****************************************************************** + * function: epicTmEnable + * + * description: Enable counting of a given global timer + * return 0 if no error, otherwise return 1 + * + * note: + *****************************************************************/ +unsigned int epicTmEnable( ULONG srcAddr ) +{ + ULONG val; + + val = sysEUMBBARRead( srcAddr ); + val &= 0x7fffffff; + sysEUMBBARWrite( srcAddr, val ); + return 0; +} + +void epicSourcePrint(int Vect) + { + ULONG srcVal; + + srcVal = sysEUMBBARRead(SrcVecTable[Vect].srcAddr); + PRINT("%s\n", SrcVecTable[Vect].srcName); + PRINT("Address = 0x%lx\n", SrcVecTable[Vect].srcAddr); + PRINT("Vector = %ld\n", (srcVal & 0x000000FF) ); + PRINT("Mask = %ld\n", srcVal >> 31); + PRINT("Activitiy = %ld\n", (srcVal & 40000000) >> 30); + PRINT("Polarity = %ld\n", (srcVal & 0x00800000) >> 23); + PRINT("Sense = %ld\n", (srcVal & 0x00400000) >> 22); + PRINT("Priority = %ld\n", (srcVal & 0x000F0000) >> 16); + } diff --git a/arch/ppc/cpu/mpc824x/drivers/epic/epic2.S b/arch/ppc/cpu/mpc824x/drivers/epic/epic2.S new file mode 100644 index 0000000..52d19aa --- /dev/null +++ b/arch/ppc/cpu/mpc824x/drivers/epic/epic2.S @@ -0,0 +1,196 @@ +/************************************** + * + * copyright @ Motorola, 1999 + * + **************************************/ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> +#include <asm/processor.h> + +/********************************************* + * function: CoreExtIntEnable + * + * description: Enable 603e core external interrupt + * + * note: mtmsr is context-synchronization + **********************************************/ + .text + .align 2 + .global CoreExtIntEnable +CoreExtIntEnable: + mfmsr r3 + + ori r3,r3,0x8000 /* enable external interrupt */ + mtmsr r3 + + bclr 20, 0 + +/******************************************* + * function: CoreExtIntDisable + * + * description: Disable 603e core external interrupt + * + * note: + *******************************************/ + .text + .align 2 + .global CoreExtIntDisable +CoreExtIntDisable: + mfmsr r4 + + xor r3,r3,r3 + or r3,r3,r4 + + andis. r4,r4,0xffff + andi. r3,r3,0x7fff /* disable external interrupt */ + + or r3,r3,r4 + mtmsr r3 + + bclr 20, 0 + +/********************************************************* + * function: epicEOI + * + * description: signal the EOI and restore machine status + * Input: r3 - value of eumbbar + * Output: r3 - value of eumbbar + * r4 - ISR vector value + * note: + ********************************************************/ + .text + .align 2 + .global epicEOI +epicEOI: + lis r5,0x0006 /* Build End Of Interrupt Register offset */ + ori r5,r5,0x00b0 + xor r7,r7,r7 /* Clear r7 */ + stwbrx r7,r5,r3 /* Save r7, writing to this register will + * intidate the end of processing the + * highest interrupt. + */ + sync + + /* ---RESTORE MACHINE STATE */ + mfmsr r13 /* Clear Recoverable Interrupt bit in MSR */ + or r7,r7,r13 + + andis. r7,r7,0xffff + andi. r13,r13,0x7ffd /* (and disable interrupts) */ + or r13,r13,r7 + mtmsr r13 + + lwz r13,0x1c(r1) /* pull ctr */ + mtctr r13 + + lwz r13,0x18(r1) /* pull xer */ + mtctr r13 + + lwz r13,0x14(r1) /* pull lr */ + mtctr r13 + + lwz r13,0x10(r1) /* Pull SRR1 from stack */ + mtspr SRR1,r13 /* Restore SRR1 */ + + lwz r13,0xc(r1) /* Pull SRR0 from stack */ + mtspr SRR0,r13 /* Restore SRR0 */ + + lwz r13,0x8(r1) /* Pull User stack pointer from stack */ + mtspr SPRG1,r13 /* Restore SPRG1 */ + + lwz r4,0x4(r1) /* vector value */ + lwz r3,0x0(r1) /* eumbbar */ + sync + + addi r1,r1,0x20 /* Deallocate stack */ + mtspr SPRG0,r1 /* Save updated Supervisor stack pointer */ + mfspr r1,SPRG1 /* Restore User stack pointer */ + + bclr 20,0 + +/*********************************************************** + * function: exception routine called by exception vector + * at 0x500, external interrupt + * + * description: Kahlua EPIC controller + * + * input: r3 - content of eumbbar + * output: r3 - ISR return value + * r4 - Interrupt vector number + * note: + ***********************************************************/ + + .text + .align 2 + .global epic_exception + +epic_exception: + + /*---SAVE MACHINE STATE TO A STACK */ + mtspr SPRG1,r1 /* Save User stack pointer to SPRG1 */ + mfspr r1,SPRG0 /* Load Supervisor stack pointer into r1 */ + + stwu r3,-0x20(r1) /* Push the value of eumbbar onto stack */ + + mfspr r3,SPRG1 /* Push User stack pointer onto stack */ + stw r3,0x8(r1) + mfspr r3,SRR0 /* Push SRR0 onto stack */ + stw r1,0xc(r1) + mfspr r3,SRR1 /* Push SRR1 onto stack */ + stw r3,0x10(r1) + mflr r3 + stw r3,0x14(r1) /* Push LR */ + mfxer r3 + stw r3,0x18(r1) /* Push Xer */ + mfctr r3 + stw r3,0x1c(r1) /* Push CTR */ + + mtspr SPRG0,r1 /* Save updated Supervisor stack pointer + * value to SPRG0 + */ + mfmsr r3 + ori r3,r3,0x0002 /* Set Recoverable Interrupt bit in MSR */ + mtmsr r3 + + /* ---READ IN THE EUMBAR REGISTER */ + lwz r6,0(r1) /* this is eumbbar */ + sync + + /* ---READ EPIC REGISTER: PROCESSOR INTERRUPT ACKNOWLEDGE REGISTER */ + lis r5,0x0006 /* Build Interrupt Acknowledge Register + * offset + */ + ori r5,r5,0x00a0 + lwbrx r7,r5,r6 /* Load interrupt vector into r7 */ + sync + + /* --MASK OFF ALL BITS EXCEPT THE VECTOR */ + xor r3,r3,r3 + xor r4,r4,r4 + or r3, r3, r6 /* eumbbar in r3 */ + andi. r4,r7,0x00ff /* Mask off bits, vector in r4 */ + + stw r4,0x04(r1) /* save the vector value */ + + lis r5,epicISR@ha + ori r5,r5,epicISR@l + mtlr r5 + blrl + + xor r30,r30,r30 + or r30,r30,r3 /* save the r3 which containts the return value from epicISR */ + + /* ---READ IN THE EUMBAR REGISTER */ + lwz r3,0(r1) + sync + + lis r5,epicEOI@ha + ori r5,r5,epicEOI@l + mtlr r5 + blrl + + xor r3,r3,r3 + or r3,r3,r30 /* restore the ISR return value */ + + bclr 20,0 diff --git a/arch/ppc/cpu/mpc824x/drivers/epic/epicutil.S b/arch/ppc/cpu/mpc824x/drivers/epic/epicutil.S new file mode 100644 index 0000000..4877050 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/drivers/epic/epicutil.S @@ -0,0 +1,57 @@ +/************************************** + * + * copyright @ Motorola, 1999 + * + * + * This file contains two commonly used + * lower level utility routines. + * + * The utility routines are also in other + * Kahlua device driver libraries. The + * need to be linked in only once. + **************************************/ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +/********************************************************** + * function: load_runtime_reg + * + * input: r3 - value of eumbbar + * r4 - register offset in embedded utility space + * + * output: r3 - register content + **********************************************************/ + .text + .align 2 + .global load_runtime_reg + +load_runtime_reg: + + xor r5,r5,r5 + or r5,r5,r3 /* save eumbbar */ + + lwbrx r3,r4,r5 + sync + + bclr 20, 0 + +/**************************************************************** + * function: store_runtime_reg + * + * input: r3 - value of eumbbar + * r4 - register offset in embedded utility space + * r5 - new value to be stored + * + ****************************************************************/ + .text + .align 2 + .global store_runtime_reg +store_runtime_reg: + + xor r0,r0,r0 + + stwbrx r5, r4, r3 + sync + + bclr 20,0 diff --git a/arch/ppc/cpu/mpc824x/drivers/errors.h b/arch/ppc/cpu/mpc824x/drivers/errors.h new file mode 100644 index 0000000..20794a2 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/drivers/errors.h @@ -0,0 +1,212 @@ +/* Copyright Motorola, Inc. 1993, 1994 + ALL RIGHTS RESERVED + + You are hereby granted a copyright license to use, modify, and + distribute the SOFTWARE so long as this entire notice is retained + without alteration in any modified and/or redistributed versions, + and that such modified versions are clearly identified as such. + No licenses are granted by implication, estoppel or otherwise under + any patents or trademarks of Motorola, Inc. + + The SOFTWARE is provided on an "AS IS" basis and without warranty. + To the maximum extent permitted by applicable law, MOTOROLA DISCLAIMS + ALL WARRANTIES WHETHER EXPRESS OR IMPLIED, INCLUDING IMPLIED + WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR + PURPOSE AND ANY WARRANTY AGAINST INFRINGEMENT WITH + REGARD TO THE SOFTWARE (INCLUDING ANY MODIFIED VERSIONS + THEREOF) AND ANY ACCOMPANYING WRITTEN MATERIALS. + + To the maximum extent permitted by applicable law, IN NO EVENT SHALL + MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER + (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF + BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS + INFORMATION, OR OTHER PECUNIARY LOSS) ARISING OF THE USE OR + INABILITY TO USE THE SOFTWARE. Motorola assumes no responsibility + for the maintenance and support of the SOFTWARE. + +*/ + + +#include "config.h" + +/* + 1 2 3 4 5 6 7 8 +01234567890123456789012345678901234567890123456789012345678901234567890123456789 +*/ +/* List define statements here */ + +/* These are for all the toolboxes and functions to use. These will help +to standardize the error handling in the current project */ + + /* this is the "data type" for the error + messages in the system */ +#define STATUS unsigned int + + /* this is a success status code */ +#define SUCCESS 1 + + /* likewise this is failure */ +#define FAILURE 0 + +#define NUM_ERRORS 47 + +/* This first section of "defines" are for error codes ONLY. The called + routine will return one of these error codes to the caller. If the final + returned code is "VALID", then everything is a-okay. However, if one + of the functions returns a non-valid status, that error code should be + propogated back to all the callers. At the end, the last caller will + call an error_processing function, and send in the status which was + returned. It's up to the error_processing function to determine which + error occured (as indicated by the status), and print an appropriate + message back to the user. +*/ +/*----------------------------------------------------------------------*/ +/* these are specifically for the parser routines */ + +#define UNKNOWN_COMMAND 0xfb00 /* "unrecognized command " */ +#define UNKNOWN_REGISTER 0xfb01 /* "unknown register "*/ +#define ILLEGAL_RD_STAGE 0xfb02 /* cannot specify reg. family in range*/ +#define ILLEGAL_REG_FAMILY 0xfb03 /* "cannot specify a range of special + or miscellaneous registers"*/ +#define RANGE_CROSS_FAMILY 0xfb04 /* "cannot specify a range across + register families" */ +#define UNIMPLEMENTED_STAGE 0xfb05 /* invalid rd or rmm parameter format */ +#define REG_NOT_WRITEABLE 0xfb06 /* "unknown operator in arguements"*/ +#define INVALID_FILENAME 0xfb07 /* "invalid download filename" */ +#define INVALID_BAUD_RATE 0xfb08 /* invalid baud rate from sb command */ +#define UNSUPPORTED_REGISTER 0xfb09 /* Special register is not supported */ +#define FOR_BOARD_ONLY 0xfb0a /* "Not available for Unix." */ + + +/*----------------------------------------------------------------------*/ +/* these are for the error checking toolbox */ + +#define INVALID 0xfd00 /* NOT valid */ +#define VALID 0xfd01 /* valid */ + + /* This error is found in the fcn: + is_right_size_input() to indicate + that the input was not 8 characters + long. */ +#define INVALID_SIZE 0xfd02 + + /* This error is found in the fcn: + is_valid_address_range() to indicate + that the address given falls outside + of valid memory defined by MEM_START + to MEM_END. + */ +#define OUT_OF_BOUNDS_ADDRESS 0xfd03 + + /* This error is found in the fcn: + is_valid_hex_input() to indicate that + one of more of the characters entered + are not valid hex characters. Valid + hex characters are 0-9, A-F, a-f. + */ +#define INVALID_HEX_INPUT 0xfd04 + + /* This error is found in the fcn: + is_valid_register_number() to indicate + that a given register does not exist. + */ +#define REG_NOT_READABLE 0xfd05 + + /* This error is found in the fcn: + is_word_aligned_address() to indicate + that the given address is not word- + aligned. A word-aligned address ends + in 0x0,0x4,0x8,0xc. + */ +#define NOT_WORD_ALIGNED 0xfd07 + + /* This error is found in the fcn: + is_valid_address_range() to indicate + that the starting address is greater + than the ending address. + */ +#define REVERSED_ADDRESS 0xfd08 + + /* this error tells us that the address + specified as the destination is within + the source addresses */ +#define RANGE_OVERLAP 0xfd09 + + +#define ERROR 0xfd0a /* An error occured */ +#define INVALID_PARAM 0xfd0b /* "invalid input parameter " */ + + +#define INVALID_FLAG 0xfd0c /* invalid flag */ + +/*----------------------------------------------------------------------*/ +/* these are for the getarg toolbox */ + +#define INVALID_NUMBER_ARGS 0xFE00 /* invalid number of commd arguements */ +#define UNKNOWN_PARAMETER 0xFE01 /* "unknown type of parameter "*/ + + +/*----------------------------------------------------------------------*/ +/* these are for the tokenizer toolbox */ + +#define ILLEGAL_CHARACTER 0xFF00 /* unrecognized char. in input stream*/ +#define TTL_NOT_SORTED 0xFF01 /* token translation list not sorted */ +#define TTL_NOT_DEFINED 0xFF02 /* token translation list not assigned*/ +#define INVALID_STRING 0xFF03 /* unable to extract string from input */ +#define BUFFER_EMPTY 0xFF04 /* "input buffer is empty" */ +#define INVALID_MODE 0xFF05 /* input buf is in an unrecognized mode*/ +#define TOK_INTERNAL_ERROR 0xFF06 /* "internal tokenizer error" */ +#define TOO_MANY_IBS 0xFF07 /* "too many open input buffers" */ +#define NO_OPEN_IBS 0xFF08 /* "no open input buffers" */ + + +/* these are for the read from screen toolbox */ + +#define RESERVED_WORD 0xFC00 /* used a reserved word as an arguement*/ + + +/* these are for the breakpoint routines */ + +#define FULL_BPDS 0xFA00 /* breakpoint data structure is full */ + + +/* THESE are for the downloader */ + +#define NOT_IN_S_RECORD_FORMAT 0xf900 /* "not in S-Record Format" */ +#define UNREC_RECORD_TYPE 0xf901 /* "unrecognized record type" */ +#define CONVERSION_ERROR 0xf902 /* "ascii to int conversion error" */ +#define INVALID_MEMORY 0xf903 /* "bad s-record memory address " */ + + +/* these are for the compression and decompression stuff */ + +#define COMP_UNK_CHARACTER 0xf800 /* "unknown compressed character " */ + +#define COMP_UNKNOWN_STATE 0xf801 /* "unknown binary state" */ + +#define NOT_IN_COMPRESSED_FORMAT 0xf802 /* not in compressed S-Record format */ + + +/* these are for the DUART handling things */ + + /* "unrecognized serial port configuration" */ +#define UNKNOWN_PORT_STATE 0xf700 + + +/* these are for the register toolbox */ + + /* "cannot find register in special + purpose register file " */ +#define SPR_NOT_FOUND 0xf600 + + +/* these are for the duart specific stuff */ + + /* "transparent mode needs access to + two serial ports" */ +#define TM_NEEDS_BOTH_PORTS 0xf500 + + +/*----------------------------------------------------------------------*/ +/* these are specifically for the flash routines */ +#define FLASH_ERROR 0xf100 /* general flash error */ diff --git a/arch/ppc/cpu/mpc824x/drivers/i2c/i2c.c b/arch/ppc/cpu/mpc824x/drivers/i2c/i2c.c new file mode 100644 index 0000000..637ae4c --- /dev/null +++ b/arch/ppc/cpu/mpc824x/drivers/i2c/i2c.c @@ -0,0 +1,270 @@ +/* + * (C) Copyright 2003 + * Gleb Natapov <gnatapov@mrv.com> + * Some bits are taken from linux driver writen by adrian@humboldt.co.uk + * + * Hardware I2C driver for MPC107 PCI bridge. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +#undef I2CDBG + +#ifdef CONFIG_HARD_I2C +#include <i2c.h> + +#define TIMEOUT (CONFIG_SYS_HZ/4) + +#define I2C_Addr ((unsigned *)(CONFIG_SYS_EUMB_ADDR + 0x3000)) + +#define I2CADR &I2C_Addr[0] +#define I2CFDR &I2C_Addr[1] +#define I2CCCR &I2C_Addr[2] +#define I2CCSR &I2C_Addr[3] +#define I2CCDR &I2C_Addr[4] + +#define MPC107_CCR_MEN 0x80 +#define MPC107_CCR_MIEN 0x40 +#define MPC107_CCR_MSTA 0x20 +#define MPC107_CCR_MTX 0x10 +#define MPC107_CCR_TXAK 0x08 +#define MPC107_CCR_RSTA 0x04 + +#define MPC107_CSR_MCF 0x80 +#define MPC107_CSR_MAAS 0x40 +#define MPC107_CSR_MBB 0x20 +#define MPC107_CSR_MAL 0x10 +#define MPC107_CSR_SRW 0x04 +#define MPC107_CSR_MIF 0x02 +#define MPC107_CSR_RXAK 0x01 + +#define I2C_READ 1 +#define I2C_WRITE 0 + +/* taken from linux include/asm-ppc/io.h */ +inline unsigned in_le32 (volatile unsigned *addr) +{ + unsigned ret; + + __asm__ __volatile__ ("lwbrx %0,0,%1;\n" + "twi 0,%0,0;\n" + "isync":"=r" (ret): "r" (addr), "m" (*addr)); + return ret; +} + +inline void out_le32 (volatile unsigned *addr, int val) +{ + __asm__ __volatile__ ("stwbrx %1,0,%2; eieio":"=m" (*addr):"r" (val), + "r" (addr)); +} + +#define writel(val, addr) out_le32(addr, val) +#define readl(addr) in_le32(addr) + +void i2c_init (int speed, int slaveadd) +{ + /* stop I2C controller */ + writel (0x0, I2CCCR); + /* set clock */ + writel (0x1020, I2CFDR); + /* write slave address */ + writel (slaveadd, I2CADR); + /* clear status register */ + writel (0x0, I2CCSR); + /* start I2C controller */ + writel (MPC107_CCR_MEN, I2CCCR); + + return; +} + +static __inline__ int i2c_wait4bus (void) +{ + ulong timeval = get_timer (0); + + while (readl (I2CCSR) & MPC107_CSR_MBB) + if (get_timer (timeval) > TIMEOUT) + return -1; + + return 0; +} + +static __inline__ int i2c_wait (int write) +{ + u32 csr; + ulong timeval = get_timer (0); + + do { + csr = readl (I2CCSR); + + if (!(csr & MPC107_CSR_MIF)) + continue; + + writel (0x0, I2CCSR); + + if (csr & MPC107_CSR_MAL) { +#ifdef I2CDBG + printf ("i2c_wait: MAL\n"); +#endif + return -1; + } + + if (!(csr & MPC107_CSR_MCF)) { +#ifdef I2CDBG + printf ("i2c_wait: unfinished\n"); +#endif + return -1; + } + + if (write == I2C_WRITE && (csr & MPC107_CSR_RXAK)) { +#ifdef I2CDBG + printf ("i2c_wait: No RXACK\n"); +#endif + return -1; + } + + return 0; + } while (get_timer (timeval) < TIMEOUT); + +#ifdef I2CDBG + printf ("i2c_wait: timed out\n"); +#endif + return -1; +} + +static __inline__ int i2c_write_addr (u8 dev, u8 dir, int rsta) +{ + writel (MPC107_CCR_MEN | MPC107_CCR_MSTA | MPC107_CCR_MTX | + (rsta ? MPC107_CCR_RSTA : 0), I2CCCR); + + writel ((dev << 1) | dir, I2CCDR); + + if (i2c_wait (I2C_WRITE) < 0) + return 0; + + return 1; +} + +static __inline__ int __i2c_write (u8 * data, int length) +{ + int i; + + writel (MPC107_CCR_MEN | MPC107_CCR_MSTA | MPC107_CCR_MTX, I2CCCR); + + for (i = 0; i < length; i++) { + writel (data[i], I2CCDR); + + if (i2c_wait (I2C_WRITE) < 0) + break; + } + + return i; +} + +static __inline__ int __i2c_read (u8 * data, int length) +{ + int i; + + writel (MPC107_CCR_MEN | MPC107_CCR_MSTA | + ((length == 1) ? MPC107_CCR_TXAK : 0), I2CCCR); + + /* dummy read */ + readl (I2CCDR); + + for (i = 0; i < length; i++) { + if (i2c_wait (I2C_READ) < 0) + break; + + /* Generate ack on last next to last byte */ + if (i == length - 2) + writel (MPC107_CCR_MEN | MPC107_CCR_MSTA | + MPC107_CCR_TXAK, I2CCCR); + + /* Generate stop on last byte */ + if (i == length - 1) + writel (MPC107_CCR_MEN | MPC107_CCR_TXAK, I2CCCR); + + data[i] = readl (I2CCDR); + } + + return i; +} + +int i2c_read (u8 dev, uint addr, int alen, u8 * data, int length) +{ + int i = 0; + u8 *a = (u8 *) & addr; + + if (i2c_wait4bus () < 0) + goto exit; + + if (i2c_write_addr (dev, I2C_WRITE, 0) == 0) + goto exit; + + if (__i2c_write (&a[4 - alen], alen) != alen) + goto exit; + + if (i2c_write_addr (dev, I2C_READ, 1) == 0) + goto exit; + + i = __i2c_read (data, length); + +exit: + writel (MPC107_CCR_MEN, I2CCCR); + + return !(i == length); +} + +int i2c_write (u8 dev, uint addr, int alen, u8 * data, int length) +{ + int i = 0; + u8 *a = (u8 *) & addr; + + if (i2c_wait4bus () < 0) + goto exit; + + if (i2c_write_addr (dev, I2C_WRITE, 0) == 0) + goto exit; + + if (__i2c_write (&a[4 - alen], alen) != alen) + goto exit; + + i = __i2c_write (data, length); + +exit: + writel (MPC107_CCR_MEN, I2CCCR); + + return !(i == length); +} + +int i2c_probe (uchar chip) +{ + int tmp; + + /* + * Try to read the first location of the chip. The underlying + * driver doesn't appear to support sending just the chip address + * and looking for an <ACK> back. + */ + udelay (10000); + return i2c_read (chip, 0, 1, (uchar *) &tmp, 1); +} + +#endif /* CONFIG_HARD_I2C */ diff --git a/arch/ppc/cpu/mpc824x/drivers/i2c_export.h b/arch/ppc/cpu/mpc824x/drivers/i2c_export.h new file mode 100644 index 0000000..6264d18 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/drivers/i2c_export.h @@ -0,0 +1,103 @@ +#ifndef I2C_EXPORT_H +#define I2C_EXPORT_H + +/**************************************************** + * + * Copyright Motrola 1999 + * + ****************************************************/ + +/* These are the defined return values for the I2C_do_transaction function. + * Any non-zero value indicates failure. Failure modes can be added for + * more detailed error reporting. + */ +typedef enum _i2c_status +{ + I2C_SUCCESS = 0, + I2C_ERROR, +} I2C_Status; + +/* These are the defined tasks for I2C_do_transaction. + * Modes for SLAVE_RCV and SLAVE_XMIT will be added. + */ +typedef enum _i2c_transaction_mode +{ + I2C_MASTER_RCV = 0, + I2C_MASTER_XMIT = 1, +} I2C_TRANSACTION_MODE; + +typedef enum _i2c_interrupt_mode +{ + I2C_INT_DISABLE = 0, + I2C_INT_ENABLE = 1, +} I2C_INTERRUPT_MODE; + +typedef enum _i2c_stop +{ + I2C_NO_STOP = 0, + I2C_STOP = 1, +} I2C_STOP_MODE; + +typedef enum _i2c_restart +{ + I2C_NO_RESTART = 0, + I2C_RESTART = 1, +} I2C_RESTART_MODE; + +/******************** App. API ******************** + * The application API is for user level application + * to use the functionality provided by I2C driver. + * This is a "generic" I2C interface, it should contain + * nothing specific to the Kahlua implementation. + * Only the generic functions are exported by the library. + * + * Note: Its App.s responsibility to swap the data + * byte. In our API, we just transfer whatever + * we are given + **************************************************/ + + +/* Initialize I2C unit with the following: + * driver's slave address + * interrupt enabled + * optional pointer to application layer print function + * + * These parameters may be added: + * desired clock rate + * digital filter frequency sampling rate + * + * This function must be called before I2C unit can be used. + */ +extern I2C_Status I2C_Initialize( + unsigned char addr, /* driver's I2C slave address */ + I2C_INTERRUPT_MODE en_int, /* 1 - enable I2C interrupt + * 0 - disable I2C interrupt + */ + int (*app_print_function)(char *,...)); /* pointer to optional "printf" + * provided by application + */ + +/* Perform the given I2C transaction, only MASTER_XMIT and MASTER_RCV + * are implemented. Both are only in polling mode. + * + * en_int controls interrupt/polling mode + * act is the type of transaction + * addr is the I2C address of the slave device + * len is the length of data to send or receive + * buffer is the address of the data buffer + * stop = I2C_NO_STOP, don't signal STOP at end of transaction + * I2C_STOP, signal STOP at end of transaction + * retry is the timeout retry value, currently ignored + * rsta = I2C_NO_RESTART, this is not continuation of existing transaction + * I2C_RESTART, this is a continuation of existing transaction + */ +extern I2C_Status I2C_do_transaction( I2C_INTERRUPT_MODE en_int, + I2C_TRANSACTION_MODE act, + unsigned char i2c_addr, + unsigned char data_addr, + int len, + char *buffer, + I2C_STOP_MODE stop, + int retry, + I2C_RESTART_MODE rsta); +#endif diff --git a/arch/ppc/cpu/mpc824x/interrupts.c b/arch/ppc/cpu/mpc824x/interrupts.c new file mode 100644 index 0000000..139c52c --- /dev/null +++ b/arch/ppc/cpu/mpc824x/interrupts.c @@ -0,0 +1,93 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * Rob Taylor, Flying Pig Systems. robt@flyingpig.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc824x.h> +#include <asm/processor.h> +#include <asm/pci_io.h> +#include <commproc.h> +#include "drivers/epic.h" + +int interrupt_init_cpu (unsigned *decrementer_count) +{ + *decrementer_count = (get_bus_freq (0) / 4) / CONFIG_SYS_HZ; + + /* + * It's all broken at the moment and I currently don't need + * interrupts. If you want to fix it, have a look at the epic + * drivers in dink32 v12. They do everthing and Motorola said + * I could use the dink source in this project as long as + * copyright notices remain intact. + */ + + epicInit (EPIC_DIRECT_IRQ, 0); + /* EPIC won't generate INT unless Current Task Pri < 15 */ + epicCurTaskPrioSet(0); + + return (0); +} + +/****************************************************************************/ + +/* + * Handle external interrupts + */ +void external_interrupt (struct pt_regs *regs) +{ + register unsigned long temp; + + pci_readl (CONFIG_SYS_EUMB_ADDR + EPIC_PROC_INT_ACK_REG, temp); + sync (); /* i'm not convinced this is needed, but dink source has it */ + temp &= 0xff; /*get vector */ + + /*TODO: handle them -... */ + epicEOI (); +} + +/****************************************************************************/ + +/* + * blank int handlers. + */ + +void +irq_install_handler (int vec, interrupt_handler_t * handler, void *arg) +{ +} + +void irq_free_handler (int vec) +{ + +} + +/*TODO: some handlers for winbond and 87308 interrupts + and what about generic pci inteerupts? + vga? + */ + +void timer_interrupt_cpu (struct pt_regs *regs) +{ + /* nothing to do here */ + return; +} diff --git a/arch/ppc/cpu/mpc824x/pci.c b/arch/ppc/cpu/mpc824x/pci.c new file mode 100644 index 0000000..cf9cf41 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/pci.c @@ -0,0 +1,78 @@ +/* + * arch/ppc/kernel/mpc10x_common.c + * + * Common routines for the Motorola SPS MPC106, MPC107 and MPC8240 Host bridge, + * Mem ctlr, EPIC, etc. + * + * Author: Mark A. Greer + * mgreer@mvista.com + * + * Copyright 2001 MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <common.h> + +#ifdef CONFIG_PCI + +#include <asm/processor.h> +#include <asm/io.h> +#include <pci.h> +#include <mpc824x.h> + +void pci_mpc824x_init (struct pci_controller *hose) +{ + hose->first_busno = 0; + hose->last_busno = 0xff; + + /* System memory space */ + pci_set_region(hose->regions + 0, + CHRP_PCI_MEMORY_BUS, + CHRP_PCI_MEMORY_PHYS, + CHRP_PCI_MEMORY_SIZE, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + /* PCI memory space */ + pci_set_region(hose->regions + 1, + CHRP_PCI_MEM_BUS, + CHRP_PCI_MEM_PHYS, + CHRP_PCI_MEM_SIZE, + PCI_REGION_MEM); + + /* ISA/PCI memory space */ + pci_set_region(hose->regions + 2, + CHRP_ISA_MEM_BUS, + CHRP_ISA_MEM_PHYS, + CHRP_ISA_MEM_SIZE, + PCI_REGION_MEM); + + /* PCI I/O space */ + pci_set_region(hose->regions + 3, + CHRP_PCI_IO_BUS, + CHRP_PCI_IO_PHYS, + CHRP_PCI_IO_SIZE, + PCI_REGION_IO); + + /* ISA/PCI I/O space */ + pci_set_region(hose->regions + 4, + CHRP_ISA_IO_BUS, + CHRP_ISA_IO_PHYS, + CHRP_ISA_IO_SIZE, + PCI_REGION_IO); + + hose->region_count = 5; + + pci_setup_indirect(hose, + CHRP_REG_ADDR, + CHRP_REG_DATA); + + pci_register_hose(hose); + + hose->last_busno = pci_hose_scan(hose); +} + +#endif diff --git a/arch/ppc/cpu/mpc824x/speed.c b/arch/ppc/cpu/mpc824x/speed.c new file mode 100644 index 0000000..fdcb972 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/speed.c @@ -0,0 +1,118 @@ +/* + * (C) Copyright 2001 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2002 + * Gregory E. Allen, gallen@arlut.utexas.edu + * Applied Research Laboratories, The University of Texas at Austin + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc824x.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* ------------------------------------------------------------------------- */ +/* NOTE: This describes the proper use of this file. + * + * CONFIG_SYS_CLK_FREQ should be defined as the input frequency on + * PCI_SYNC_IN . + * + * CONFIG_PLL_PCI_TO_MEM_MULTIPLIER is only required on MPC8240 + * boards. It should be defined as the PCI to Memory Multiplier as + * documented in the MPC8240 Hardware Specs. + * + * Other mpc824x boards don't need CONFIG_PLL_PCI_TO_MEM_MULTIPLIER + * because they can determine it from the PCR. + * + * Gary Milliorn <gary.milliorn@motorola.com> (who should know since + * he designed the Sandpoint) told us that the PCR is not in all revs + * of the MPC8240 CPU, so it's not guaranteeable and we cannot do + * away with CONFIG_PLL_PCI_TO_MEM_MULTIPLIER altogether. + */ +/* ------------------------------------------------------------------------- */ + +/* This gives the PCI to Memory multiplier times 10 */ +/* The index is the value of PLL_CFG[0:4] */ +/* This is documented in the MPC8240/5 Hardware Specs */ + +short pll_pci_to_mem_multiplier[] = { +#if defined(CONFIG_MPC8240) + 30, 30, 10, 10, 20, 10, 0, 10, + 10, 0, 20, 0, 20, 0, 20, 0, + 30, 0, 15, 0, 20, 0, 20, 0, + 25, 0, 10, 0, 15, 15, 0, 0, +#elif defined(CONFIG_MPC8245) + 30, 30, 10, 10, 20, 10, 10, 10, + 10, 20, 20, 15, 20, 15, 20, 30, + 30, 40, 15, 40, 20, 25, 20, 40, + 25, 20, 10, 20, 15, 15, 15, 0, +#else +#error Specific type of MPC824x must be defined (i.e. CONFIG_MPC8240) +#endif +}; + +#define CU824_PLL_STATE_REG 0xFE80002F +#define PCR 0x800000E2 + +/* ------------------------------------------------------------------------- */ + +/* compute the memory bus clock frequency */ +ulong get_bus_freq (ulong dummy) +{ + unsigned char pll_cfg; +#if defined(CONFIG_MPC8240) && !defined(CONFIG_CU824) + return (CONFIG_SYS_CLK_FREQ) * (CONFIG_PLL_PCI_TO_MEM_MULTIPLIER); +#elif defined(CONFIG_CU824) + pll_cfg = *(volatile unsigned char *) (CU824_PLL_STATE_REG); + pll_cfg &= 0x1f; +#else + CONFIG_READ_BYTE(PCR, pll_cfg); + pll_cfg = (pll_cfg >> 3) & 0x1f; +#endif + return ((CONFIG_SYS_CLK_FREQ) * pll_pci_to_mem_multiplier[pll_cfg] + 5) / 10; +} + + +/* ------------------------------------------------------------------------- */ + +/* This gives the Memory to CPU Core multiplier times 10 */ +/* The index is the value of PLLRATIO in HID1 */ +/* This is documented in the MPC8240 Hardware Specs */ +/* This is not documented for MPC8245 ? FIXME */ +short pllratio_to_factor[] = { + 0, 0, 0, 10, 20, 20, 25, 45, + 30, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 10, 0, 0, 0, 45, + 30, 0, 40, 0, 0, 0, 35, 0, +}; + +/* compute the CPU and memory bus clock frequencies */ +int get_clocks (void) +{ + uint hid1 = mfspr(HID1); + hid1 = (hid1 >> (32-5)) & 0x1f; + gd->cpu_clk = (pllratio_to_factor[hid1] * get_bus_freq(0) + 5) + / 10; + gd->bus_clk = get_bus_freq(0); + return (0); +} diff --git a/arch/ppc/cpu/mpc824x/start.S b/arch/ppc/cpu/mpc824x/start.S new file mode 100644 index 0000000..f3f595a --- /dev/null +++ b/arch/ppc/cpu/mpc824x/start.S @@ -0,0 +1,766 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2000,2001,2002 Wolfgang Denk <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* U-Boot - Startup Code for PowerPC based Embedded Boards + * + * + * The processor starts at 0x00000100 and the code is executed + * from flash. The code is organized to be at an other address + * in memory, but as long we don't jump around before relocating. + * board_init lies at a quite high address and when the cpu has + * jumped there, everything is ok. + * This works because the cpu gives the FLASH (CS0) the whole + * address space at startup, and board_init lies as a echo of + * the flash somewhere up there in the memorymap. + * + * board_init will change CS0 to be positioned at the correct + * address and (s)dram will be positioned at address 0 + */ +#include <config.h> +#include <mpc824x.h> +#include <timestamp.h> +#include <version.h> + +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +/* We don't want the MMU yet. +*/ +#undef MSR_KERNEL +/* FP, Machine Check and Recoverable Interr. */ +#define MSR_KERNEL ( MSR_FP | MSR_ME | MSR_RI ) + +/* + * Set up GOT: Global Offset Table + * + * Use r12 to access the GOT + */ + START_GOT + GOT_ENTRY(_GOT2_TABLE_) + GOT_ENTRY(_FIXUP_TABLE_) + + GOT_ENTRY(_start) + GOT_ENTRY(_start_of_vectors) + GOT_ENTRY(_end_of_vectors) + GOT_ENTRY(transfer_to_handler) + + GOT_ENTRY(__init_end) + GOT_ENTRY(_end) + GOT_ENTRY(__bss_start) +#if defined(CONFIG_FADS) + GOT_ENTRY(environment) +#endif + END_GOT + +/* + * r3 - 1st arg to board_init(): IMMP pointer + * r4 - 2nd arg to board_init(): boot flag + */ + .text + .long 0x27051956 /* U-Boot Magic Number */ + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" + .ascii CONFIG_IDENT_STRING, "\0" + + . = EXC_OFF_SYS_RESET + .globl _start +_start: + li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */ + b boot_cold + + . = EXC_OFF_SYS_RESET + 0x10 + + .globl _start_warm +_start_warm: + li r21, BOOTFLAG_WARM /* Software reboot */ + b boot_warm + +boot_cold: +boot_warm: + + /* Initialize machine status; enable machine check interrupt */ + /*----------------------------------------------------------------------*/ + li r3, MSR_KERNEL /* Set FP, ME, RI flags */ + mtmsr r3 + mtspr SRR1, r3 /* Make SRR1 match MSR */ + + addis r0,0,0x0000 /* lets make sure that r0 is really 0 */ + mtspr HID0, r0 /* disable I and D caches */ + + mfspr r3, ICR /* clear Interrupt Cause Register */ + + mfmsr r3 /* turn off address translation */ + addis r4,0,0xffff + ori r4,r4,0xffcf + and r3,r3,r4 + mtmsr r3 + isync + sync /* the MMU should be off... */ + + +in_flash: +#if defined(CONFIG_BMW) + bl early_init_f /* Must be ASM: no stack yet! */ +#endif + /* + * Setup BATs - cannot be done in C since we don't have a stack yet + */ + bl setup_bats + + /* Enable MMU. + */ + mfmsr r3 + ori r3, r3, (MSR_IR | MSR_DR) + mtmsr r3 +#if !defined(CONFIG_BMW) + /* Enable and invalidate data cache. + */ + mfspr r3, HID0 + mr r2, r3 + ori r3, r3, HID0_DCE | HID0_DCI + ori r2, r2, HID0_DCE + sync + mtspr HID0, r3 + mtspr HID0, r2 + sync + + /* Allocate Initial RAM in data cache. + */ + lis r3, CONFIG_SYS_INIT_RAM_ADDR@h + ori r3, r3, CONFIG_SYS_INIT_RAM_ADDR@l + li r2, 128 + mtctr r2 +1: + dcbz r0, r3 + addi r3, r3, 32 + bdnz 1b + + /* Lock way0 in data cache. + */ + mfspr r3, 1011 + lis r2, 0xffff + ori r2, r2, 0xff1f + and r3, r3, r2 + ori r3, r3, 0x0080 + sync + mtspr 1011, r3 +#endif /* !CONFIG_BMW */ + /* + * Thisk the stack pointer *somewhere* sensible. Doesnt + * matter much where as we'll move it when we relocate + */ + lis r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@h + ori r1, r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@l + + li r0, 0 /* Make room for stack frame header and */ + stwu r0, -4(r1) /* clear final stack frame so that */ + stwu r0, -4(r1) /* stack backtraces terminate cleanly */ + + /* let the C-code set up the rest */ + /* */ + /* Be careful to keep code relocatable ! */ + /*----------------------------------------------------------------------*/ + + GET_GOT /* initialize GOT access */ + + /* r3: IMMR */ + bl cpu_init_f /* run low-level CPU init code (from Flash) */ + + mr r3, r21 + /* r3: BOOTFLAG */ + bl board_init_f /* run 1st part of board init code (from Flash) */ + + + .globl _start_of_vectors +_start_of_vectors: + +/* Machine check */ + STD_EXCEPTION(EXC_OFF_MACH_CHCK, MachineCheck, MachineCheckException) + +/* Data Storage exception. "Never" generated on the 860. */ + STD_EXCEPTION(EXC_OFF_DATA_STOR, DataStorage, UnknownException) + +/* Instruction Storage exception. "Never" generated on the 860. */ + STD_EXCEPTION(EXC_OFF_INS_STOR, InstStorage, UnknownException) + +/* External Interrupt exception. */ + STD_EXCEPTION(EXC_OFF_EXTERNAL, ExtInterrupt, external_interrupt) + +/* Alignment exception. */ + . = EXC_OFF_ALIGN +Alignment: + EXCEPTION_PROLOG(SRR0, SRR1) + mfspr r4,DAR + stw r4,_DAR(r21) + mfspr r5,DSISR + stw r5,_DSISR(r21) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) + +/* Program check exception */ + . = EXC_OFF_PROGRAM +ProgramCheck: + EXCEPTION_PROLOG(SRR0, SRR1) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, + MSR_KERNEL, COPY_EE) + + /* No FPU on MPC8xx. This exception is not supposed to happen. + */ + STD_EXCEPTION(EXC_OFF_FPUNAVAIL, FPUnavailable, UnknownException) + + /* I guess we could implement decrementer, and may have + * to someday for timekeeping. + */ + STD_EXCEPTION(EXC_OFF_DECR, Decrementer, timer_interrupt) + STD_EXCEPTION(0xa00, Trap_0a, UnknownException) + STD_EXCEPTION(0xb00, Trap_0b, UnknownException) + STD_EXCEPTION(0xc00, SystemCall, UnknownException) + + STD_EXCEPTION(EXC_OFF_TRACE, SingleStep, UnknownException) + + STD_EXCEPTION(EXC_OFF_FPUNASSIST, Trap_0e, UnknownException) + STD_EXCEPTION(EXC_OFF_PMI, Trap_0f, UnknownException) + + STD_EXCEPTION(EXC_OFF_ITME, InstructionTransMiss, UnknownException) + STD_EXCEPTION(EXC_OFF_DLTME, DataLoadTransMiss, UnknownException) + STD_EXCEPTION(EXC_OFF_DSTME, DataStoreTransMiss, UnknownException) + STD_EXCEPTION(EXC_OFF_IABE, InstructionBreakpoint, DebugException) + STD_EXCEPTION(EXC_OFF_SMIE, SysManageInt, UnknownException) + STD_EXCEPTION(0x1500, Reserved5, UnknownException) + STD_EXCEPTION(0x1600, Reserved6, UnknownException) + STD_EXCEPTION(0x1700, Reserved7, UnknownException) + STD_EXCEPTION(0x1800, Reserved8, UnknownException) + STD_EXCEPTION(0x1900, Reserved9, UnknownException) + STD_EXCEPTION(0x1a00, ReservedA, UnknownException) + STD_EXCEPTION(0x1b00, ReservedB, UnknownException) + STD_EXCEPTION(0x1c00, ReservedC, UnknownException) + STD_EXCEPTION(0x1d00, ReservedD, UnknownException) + STD_EXCEPTION(0x1e00, ReservedE, UnknownException) + STD_EXCEPTION(0x1f00, ReservedF, UnknownException) + + STD_EXCEPTION(EXC_OFF_RMTE, RunModeTrace, UnknownException) + + .globl _end_of_vectors +_end_of_vectors: + + + . = 0x3000 + +/* + * This code finishes saving the registers to the exception frame + * and jumps to the appropriate handler for the exception. + * Register r21 is pointer into trap frame, r1 has new stack pointer. + */ + .globl transfer_to_handler +transfer_to_handler: + stw r22,_NIP(r21) + lis r22,MSR_POW@h + andc r23,r23,r22 + stw r23,_MSR(r21) + SAVE_GPR(7, r21) + SAVE_4GPRS(8, r21) + SAVE_8GPRS(12, r21) + SAVE_8GPRS(24, r21) +#if 0 + andi. r23,r23,MSR_PR + mfspr r23,SPRG3 /* if from user, fix up tss.regs */ + beq 2f + addi r24,r1,STACK_FRAME_OVERHEAD + stw r24,PT_REGS(r23) +2: addi r2,r23,-TSS /* set r2 to current */ + tovirt(r2,r2,r23) +#endif + mflr r23 + andi. r24,r23,0x3f00 /* get vector offset */ + stw r24,TRAP(r21) + li r22,0 + stw r22,RESULT(r21) + mtspr SPRG2,r22 /* r1 is now kernel sp */ +#if 0 + addi r24,r2,TASK_STRUCT_SIZE /* check for kernel stack overflow */ + cmplw 0,r1,r2 + cmplw 1,r1,r24 + crand 1,1,4 + bgt stack_ovf /* if r2 < r1 < r2+TASK_STRUCT_SIZE */ +#endif + lwz r24,0(r23) /* virtual address of handler */ + lwz r23,4(r23) /* where to go when done */ + mtspr SRR0,r24 + ori r20,r20,0x30 /* enable IR, DR */ + mtspr SRR1,r20 + mtlr r23 + SYNC + rfi /* jump to handler, enable MMU */ + +int_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SRR0,r2 + mtspr SRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfi + +/* Cache functions. +*/ + .globl icache_enable +icache_enable: + mfspr r5,HID0 /* turn on the I cache. */ + ori r5,r5,0x8800 /* Instruction cache only! */ + addis r6,0,0xFFFF + ori r6,r6,0xF7FF + and r6,r5,r6 /* clear the invalidate bit */ + sync + mtspr HID0,r5 + mtspr HID0,r6 + isync + sync + blr + + .globl icache_disable +icache_disable: + mfspr r5,HID0 + addis r6,0,0xFFFF + ori r6,r6,0x7FFF + and r5,r5,r6 + sync + mtspr HID0,r5 + isync + sync + blr + + .globl icache_status +icache_status: + mfspr r3, HID0 + srwi r3, r3, 15 /* >>15 & 1=> select bit 16 */ + andi. r3, r3, 1 + blr + + .globl dcache_enable +dcache_enable: + mfspr r5,HID0 /* turn on the D cache. */ + ori r5,r5,0x4400 /* Data cache only! */ + mfspr r4, PVR /* read PVR */ + srawi r3, r4, 16 /* shift off the least 16 bits */ + cmpi 0, 0, r3, 0xC /* Check for Max pvr */ + bne NotMax + ori r5,r5,0x0040 /* setting the DCFA bit, for Max rev 1 errata */ +NotMax: + addis r6,0,0xFFFF + ori r6,r6,0xFBFF + and r6,r5,r6 /* clear the invalidate bit */ + sync + mtspr HID0,r5 + mtspr HID0,r6 + isync + sync + blr + + .globl dcache_disable +dcache_disable: + mfspr r5,HID0 + addis r6,0,0xFFFF + ori r6,r6,0xBFFF + and r5,r5,r6 + sync + mtspr HID0,r5 + isync + sync + blr + + .globl dcache_status +dcache_status: + mfspr r3, HID0 + srwi r3, r3, 14 /* >>14 & 1=> select bit 17 */ + andi. r3, r3, 1 + blr + + .globl dc_read +dc_read: +/*TODO : who uses this, what should it do? +*/ + blr + + + .globl get_pvr +get_pvr: + mfspr r3, PVR + blr + + +/*------------------------------------------------------------------------------*/ + +/* + * void relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * r3 = dest + * r4 = src + * r5 = length in bytes + * r6 = cachelinesize + */ + .globl relocate_code +relocate_code: + + mr r1, r3 /* Set new stack pointer */ + mr r9, r4 /* Save copy of Global Data pointer */ + mr r10, r5 /* Save copy of Destination Address */ + + GET_GOT + mr r3, r5 /* Destination Address */ +#ifdef CONFIG_SYS_RAMBOOT + lis r4, CONFIG_SYS_SDRAM_BASE@h /* Source Address */ + ori r4, r4, CONFIG_SYS_SDRAM_BASE@l +#else + lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ + ori r4, r4, CONFIG_SYS_MONITOR_BASE@l +#endif + lwz r5, GOT(__init_end) + sub r5, r5, r4 + li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */ + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address + * + * Offset: + */ + sub r15, r10, r4 + + /* First our own GOT */ + add r12, r12, r15 + /* the the one used by the C code */ + add r30, r30, r15 + + /* + * Now relocate code + */ + + cmplw cr1,r3,r4 + addi r0,r5,3 + srwi. r0,r0,2 + beq cr1,4f /* In place copy is not necessary */ + beq 7f /* Protect against 0 count */ + mtctr r0 + bge cr1,2f + + la r8,-4(r4) + la r7,-4(r3) +1: lwzu r0,4(r8) + stwu r0,4(r7) + bdnz 1b + b 4f + +2: slwi r0,r0,2 + add r8,r4,r0 + add r7,r3,r0 +3: lwzu r0,-4(r8) + stwu r0,-4(r7) + bdnz 3b + +4: +#if !defined(CONFIG_BMW) +/* Unlock the data cache and invalidate locked area */ + xor r0, r0, r0 + mtspr 1011, r0 + lis r4, CONFIG_SYS_INIT_RAM_ADDR@h + ori r4, r4, CONFIG_SYS_INIT_RAM_ADDR@l + li r0, 128 + mtctr r0 +41: + dcbi r0, r4 + addi r4, r4, 32 + bdnz 41b +#endif + +/* + * Now flush the cache: note that we must start from a cache aligned + * address. Otherwise we might miss one cache line. + */ + cmpwi r6,0 + add r5,r3,r5 + beq 7f /* Always flush prefetch queue in any case */ + subi r0,r6,1 + andc r3,r3,r0 + mr r4,r3 +5: dcbst 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 5b + sync /* Wait for all dcbst to complete on bus */ + mr r4,r3 +6: icbi 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 6b +7: sync /* Wait for all icbi to complete on bus */ + isync + +/* + * We are done. Do not return, instead branch to second part of board + * initialization, now running from RAM. + */ + + addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET + mtlr r0 + blr + +in_ram: + + /* + * Relocation Function, r12 point to got2+0x8000 + * + * Adjust got2 pointers, no need to check for 0, this code + * already puts a few entries in the table. + */ + li r0,__got2_entries@sectoff@l + la r3,GOT(_GOT2_TABLE_) + lwz r11,GOT(_GOT2_TABLE_) + mtctr r0 + sub r11,r3,r11 + addi r3,r3,-4 +1: lwzu r0,4(r3) + cmpwi r0,0 + beq- 2f + add r0,r0,r11 + stw r0,0(r3) +2: bdnz 1b + + /* + * Now adjust the fixups and the pointers to the fixups + * in case we need to move ourselves again. + */ + li r0,__fixup_entries@sectoff@l + lwz r3,GOT(_FIXUP_TABLE_) + cmpwi r0,0 + mtctr r0 + addi r3,r3,-4 + beq 4f +3: lwzu r4,4(r3) + lwzux r0,r4,r11 + add r0,r0,r11 + stw r10,0(r3) + stw r0,0(r4) + bdnz 3b +4: +clear_bss: + /* + * Now clear BSS segment + */ + lwz r3,GOT(__bss_start) + lwz r4,GOT(_end) + + cmplw 0, r3, r4 + beq 6f + + li r0, 0 +5: + stw r0, 0(r3) + addi r3, r3, 4 + cmplw 0, r3, r4 + blt 5b +6: + + mr r3, r9 /* Global Data pointer */ + mr r4, r10 /* Destination Address */ + bl board_init_r + + /* + * Copy exception vector code to low memory + * + * r3: dest_addr + * r7: source address, r8: end address, r9: target address + */ + .globl trap_init +trap_init: + mflr r4 /* save link register */ + GET_GOT + lwz r7, GOT(_start) + lwz r8, GOT(_end_of_vectors) + + li r9, 0x100 /* reset vector always at 0x100 */ + + cmplw 0, r7, r8 + bgelr /* return if r7>=r8 - just in case */ +1: + lwz r0, 0(r7) + stw r0, 0(r9) + addi r7, r7, 4 + addi r9, r9, 4 + cmplw 0, r7, r8 + bne 1b + + /* + * relocate `hdlr' and `int_return' entries + */ + li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET + li r8, Alignment - _start + EXC_OFF_SYS_RESET +2: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 2b + + li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET + li r8, SystemCall - _start + EXC_OFF_SYS_RESET +3: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 3b + + li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET + li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET +4: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 4b + + mtlr r4 /* restore link register */ + blr + + /* Setup the BAT registers. + */ +setup_bats: + lis r4, CONFIG_SYS_IBAT0L@h + ori r4, r4, CONFIG_SYS_IBAT0L@l + lis r3, CONFIG_SYS_IBAT0U@h + ori r3, r3, CONFIG_SYS_IBAT0U@l + mtspr IBAT0L, r4 + mtspr IBAT0U, r3 + isync + + lis r4, CONFIG_SYS_DBAT0L@h + ori r4, r4, CONFIG_SYS_DBAT0L@l + lis r3, CONFIG_SYS_DBAT0U@h + ori r3, r3, CONFIG_SYS_DBAT0U@l + mtspr DBAT0L, r4 + mtspr DBAT0U, r3 + isync + + lis r4, CONFIG_SYS_IBAT1L@h + ori r4, r4, CONFIG_SYS_IBAT1L@l + lis r3, CONFIG_SYS_IBAT1U@h + ori r3, r3, CONFIG_SYS_IBAT1U@l + mtspr IBAT1L, r4 + mtspr IBAT1U, r3 + isync + + lis r4, CONFIG_SYS_DBAT1L@h + ori r4, r4, CONFIG_SYS_DBAT1L@l + lis r3, CONFIG_SYS_DBAT1U@h + ori r3, r3, CONFIG_SYS_DBAT1U@l + mtspr DBAT1L, r4 + mtspr DBAT1U, r3 + isync + + lis r4, CONFIG_SYS_IBAT2L@h + ori r4, r4, CONFIG_SYS_IBAT2L@l + lis r3, CONFIG_SYS_IBAT2U@h + ori r3, r3, CONFIG_SYS_IBAT2U@l + mtspr IBAT2L, r4 + mtspr IBAT2U, r3 + isync + + lis r4, CONFIG_SYS_DBAT2L@h + ori r4, r4, CONFIG_SYS_DBAT2L@l + lis r3, CONFIG_SYS_DBAT2U@h + ori r3, r3, CONFIG_SYS_DBAT2U@l + mtspr DBAT2L, r4 + mtspr DBAT2U, r3 + isync + + lis r4, CONFIG_SYS_IBAT3L@h + ori r4, r4, CONFIG_SYS_IBAT3L@l + lis r3, CONFIG_SYS_IBAT3U@h + ori r3, r3, CONFIG_SYS_IBAT3U@l + mtspr IBAT3L, r4 + mtspr IBAT3U, r3 + isync + + lis r4, CONFIG_SYS_DBAT3L@h + ori r4, r4, CONFIG_SYS_DBAT3L@l + lis r3, CONFIG_SYS_DBAT3U@h + ori r3, r3, CONFIG_SYS_DBAT3U@l + mtspr DBAT3L, r4 + mtspr DBAT3U, r3 + isync + + /* Invalidate TLBs. + * -> for (val = 0; val < 0x20000; val+=0x1000) + * -> tlbie(val); + */ + lis r3, 0 + lis r5, 2 + +1: + tlbie r3 + addi r3, r3, 0x1000 + cmp 0, 0, r3, r5 + blt 1b + + blr diff --git a/arch/ppc/cpu/mpc824x/traps.c b/arch/ppc/cpu/mpc824x/traps.c new file mode 100644 index 0000000..0a72430 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/traps.c @@ -0,0 +1,219 @@ +/* + * linux/arch/ppc/kernel/traps.c + * + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * Modified by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras (paulus@cs.anu.edu.au) + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * This file handles the architecture-dependent parts of hardware exceptions + */ + +#include <common.h> +#include <asm/processor.h> + +/* Returns 0 if exception not found and fixup otherwise. */ +extern unsigned long search_exception_table(unsigned long); + +/* THIS NEEDS CHANGING to use the board info structure. +*/ +#define END_OF_MEM 0x00400000 + +/* + * Trap & Exception support + */ + +void +print_backtrace(unsigned long *sp) +{ + int cnt = 0; + unsigned long i; + + printf("Call backtrace: "); + while (sp) { + if ((uint)sp > END_OF_MEM) + break; + + i = sp[1]; + if (cnt++ % 7 == 0) + printf("\n"); + printf("%08lX ", i); + if (cnt > 32) break; + sp = (unsigned long *)*sp; + } + printf("\n"); +} + +void show_regs(struct pt_regs * regs) +{ + int i; + + printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n", + regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); + printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n", + regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0, + regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0, + regs->msr&MSR_IR ? 1 : 0, + regs->msr&MSR_DR ? 1 : 0); + + printf("\n"); + for (i = 0; i < 32; i++) { + if ((i % 8) == 0) + { + printf("GPR%02d: ", i); + } + + printf("%08lX ", regs->gpr[i]); + if ((i % 8) == 7) + { + printf("\n"); + } + } +} + + +void +_exception(int signr, struct pt_regs *regs) +{ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Exception in kernel pc %lx signal %d",regs->nip,signr); +} + +void +MachineCheckException(struct pt_regs *regs) +{ + unsigned long fixup; + + /* Probing PCI using config cycles cause this exception + * when a device is not present. Catch it and return to + * the PCI exception handler. + */ + if ((fixup = search_exception_table(regs->nip)) != 0) { + regs->nip = fixup; + return; + } + + printf("Machine check in kernel mode.\n"); + printf("Caused by (from msr): "); + printf("regs %p ",regs); + switch( regs->msr & 0x000F0000) { + case (0x80000000>>12): + printf("Machine check signal - probably due to mm fault\n" + "with mmu off\n"); + break; + case (0x80000000>>13): + printf("Transfer error ack signal\n"); + break; + case (0x80000000>>14): + printf("Data parity signal\n"); + break; + case (0x80000000>>15): + printf("Address parity signal\n"); + break; + default: + printf("Unknown values in msr\n"); + } + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("machine check"); +} + +void +AlignmentException(struct pt_regs *regs) +{ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Alignment Exception"); +} + +void +ProgramCheckException(struct pt_regs *regs) +{ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Program Check Exception"); +} + +void +SoftEmuException(struct pt_regs *regs) +{ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Software Emulation Exception"); +} + + +void +UnknownException(struct pt_regs *regs) +{ + printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", + regs->nip, regs->msr, regs->trap); + _exception(0, regs); +} + +#if defined(CONFIG_CMD_BEDBUG) +extern void do_bedbug_breakpoint(struct pt_regs *); +#endif + +void +DebugException(struct pt_regs *regs) +{ + + printf("Debugger trap at @ %lx\n", regs->nip ); + show_regs(regs); +#if defined(CONFIG_CMD_BEDBUG) + do_bedbug_breakpoint( regs ); +#endif +} + +/* Probe an address by reading. If not present, return -1, otherwise + * return 0. + */ +int +addr_probe(uint *addr) +{ +#if 0 + int retval; + + __asm__ __volatile__( \ + "1: lwz %0,0(%1)\n" \ + " eieio\n" \ + " li %0,0\n" \ + "2:\n" \ + ".section .fixup,\"ax\"\n" \ + "3: li %0,-1\n" \ + " b 2b\n" \ + ".section __ex_table,\"a\"\n" \ + " .align 2\n" \ + " .long 1b,3b\n" \ + ".text" \ + : "=r" (retval) : "r"(addr)); + + return (retval); +#endif + return 0; +} diff --git a/arch/ppc/cpu/mpc824x/u-boot.lds b/arch/ppc/cpu/mpc824x/u-boot.lds new file mode 100644 index 0000000..8a6d508 --- /dev/null +++ b/arch/ppc/cpu/mpc824x/u-boot.lds @@ -0,0 +1,122 @@ +/* + * (C) Copyright 2001-2007 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_ARCH(powerpc) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + arch/ppc/cpu/mpc824x/start.o (.text) + *(.text) + *(.got1) + . = ALIGN(16); + *(.eh_frame) + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x0FFF) & 0xFFFFF000; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(4096); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(4096); + __init_end = .; + + __bss_start = .; + .bss (NOLOAD) : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + . = ALIGN(4); + } + _end = . ; + PROVIDE (end = .); +} diff --git a/arch/ppc/cpu/mpc8260/Makefile b/arch/ppc/cpu/mpc8260/Makefile new file mode 100644 index 0000000..9f0c2dd --- /dev/null +++ b/arch/ppc/cpu/mpc8260/Makefile @@ -0,0 +1,53 @@ +# +# (C) Copyright 2000-2008 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).a + +START = start.o kgdb.o +COBJS = traps.o serial_smc.o serial_scc.o cpu.o cpu_init.o speed.o \ + interrupts.o ether_fcc.o i2c.o commproc.o \ + bedbug_603e.o pci.o spi.o + +COBJS-$(CONFIG_ETHER_ON_SCC) = ether_scc.o + +COBJS += $(COBJS-y) + +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) $(obj)kgdb.o + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/ppc/cpu/mpc8260/bedbug_603e.c b/arch/ppc/cpu/mpc8260/bedbug_603e.c new file mode 100644 index 0000000..c969ff6 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/bedbug_603e.c @@ -0,0 +1,238 @@ +/* + * Bedbug Functions specific to the MPC603e core + */ + +#include <common.h> +#include <command.h> +#include <linux/ctype.h> +#include <bedbug/type.h> +#include <bedbug/bedbug.h> +#include <bedbug/regs.h> +#include <bedbug/ppc.h> + +#if defined(CONFIG_CMD_BEDBUG) \ + && (defined(CONFIG_MPC824X) || defined(CONFIG_MPC8260)) + +#define MAX_BREAK_POINTS 1 + +extern CPU_DEBUG_CTX bug_ctx; + +void bedbug603e_init __P((void)); +void bedbug603e_do_break __P((cmd_tbl_t*,int,int,char*[])); +void bedbug603e_break_isr __P((struct pt_regs*)); +int bedbug603e_find_empty __P((void)); +int bedbug603e_set __P((int,unsigned long)); +int bedbug603e_clear __P((int)); + + +/* ====================================================================== + * Initialize the global bug_ctx structure for the processor. Clear all + * of the breakpoints. + * ====================================================================== */ + +void bedbug603e_init( void ) +{ + int i; + /* -------------------------------------------------- */ + + bug_ctx.hw_debug_enabled = 0; + bug_ctx.stopped = 0; + bug_ctx.current_bp = 0; + bug_ctx.regs = NULL; + + bug_ctx.do_break = bedbug603e_do_break; + bug_ctx.break_isr = bedbug603e_break_isr; + bug_ctx.find_empty = bedbug603e_find_empty; + bug_ctx.set = bedbug603e_set; + bug_ctx.clear = bedbug603e_clear; + + for( i = 1; i <= MAX_BREAK_POINTS; ++i ) + (*bug_ctx.clear)( i ); + + puts ("BEDBUG:ready\n"); + return; +} /* bedbug_init_breakpoints */ + + + +/* ====================================================================== + * Set/clear/show the hardware breakpoint for the 603e. The "off" + * string will disable a specific breakpoint. The "show" string will + * display the current breakpoints. Otherwise an address will set a + * breakpoint at that address. Setting a breakpoint uses the CPU-specific + * set routine which will assign a breakpoint number. + * ====================================================================== */ + +void bedbug603e_do_break (cmd_tbl_t *cmdtp, int flag, int argc, + char *argv[]) +{ + long addr; /* Address to break at */ + int which_bp; /* Breakpoint number */ + /* -------------------------------------------------- */ + + if (argc < 2) + { + cmd_usage(cmdtp); + return; + } + + /* Turn off a breakpoint */ + + if( strcmp( argv[ 1 ], "off" ) == 0 ) + { + if( bug_ctx.hw_debug_enabled == 0 ) + { + puts ( "No breakpoints enabled\n" ); + return; + } + + which_bp = simple_strtoul( argv[ 2 ], NULL, 10 ); + + if( bug_ctx.clear ) + (*bug_ctx.clear)( which_bp ); + + printf( "Breakpoint %d removed\n", which_bp ); + return; + } + + /* Show a list of breakpoints */ + + if( strcmp( argv[ 1 ], "show" ) == 0 ) + { + for( which_bp = 1; which_bp <= MAX_BREAK_POINTS; ++which_bp ) + { + + addr = GET_IABR(); + + printf( "Breakpoint [%d]: ", which_bp ); + if( (addr & 0x00000002) == 0 ) + puts ( "NOT SET\n" ); + else + disppc( (unsigned char *)(addr & 0xFFFFFFFC), 0, 1, bedbug_puts, F_RADHEX ); + } + return; + } + + /* Set a breakpoint at the address */ + + if(!(( isdigit( argv[ 1 ][ 0 ] )) || + (( argv[ 1 ][ 0 ] >= 'a' ) && ( argv[ 1 ][ 0 ] <= 'f' )) || + (( argv[ 1 ][ 0 ] >= 'A' ) && ( argv[ 1 ][ 0 ] <= 'F' )))) + { + cmd_usage(cmdtp); + return; + } + + addr = simple_strtoul( argv[ 1 ], NULL, 16 ); + + if(( bug_ctx.set ) && ( which_bp = (*bug_ctx.set)( 0, addr )) > 0 ) + { + printf( "Breakpoint [%d]: ", which_bp ); + disppc( (unsigned char *)addr, 0, 1, bedbug_puts, F_RADHEX ); + } + + return; +} /* bedbug603e_do_break */ + + + +/* ====================================================================== + * Handle a breakpoint. Enter a mini main loop. Stay in the loop until + * the stopped flag in the debug context is cleared. + * ====================================================================== */ + +void bedbug603e_break_isr( struct pt_regs *regs ) +{ + unsigned long addr; /* Address stopped at */ + /* -------------------------------------------------- */ + + bug_ctx.current_bp = 1; + addr = GET_IABR() & 0xFFFFFFFC; + + bedbug_main_loop( addr, regs ); + return; +} /* bedbug603e_break_isr */ + + + +/* ====================================================================== + * See if the hardware breakpoint is available. + * ====================================================================== */ + +int bedbug603e_find_empty( void ) +{ + /* -------------------------------------------------- */ + + if( (GET_IABR() && 0x00000002) == 0 ) + return 1; + + return 0; +} /* bedbug603e_find_empty */ + + + +/* ====================================================================== + * Set a breakpoint. If 'which_bp' is zero then find an unused breakpoint + * number, otherwise reassign the given breakpoint. If hardware debugging + * is not enabled, then turn it on via the MSR and DBCR0. Set the break + * address in the IABR register. + * ====================================================================== */ + +int bedbug603e_set( int which_bp, unsigned long addr ) +{ + /* -------------------------------------------------- */ + + if(( addr & 0x00000003 ) != 0 ) + { + puts ( "Breakpoints must be on a 32 bit boundary\n" ); + return 0; + } + + /* Only look if which_bp == 0, else use which_bp */ + if(( bug_ctx.find_empty ) && ( !which_bp ) && + ( which_bp = (*bug_ctx.find_empty)()) == 0 ) + { + puts ( "All breakpoints in use\n" ); + return 0; + } + + if( which_bp < 1 || which_bp > MAX_BREAK_POINTS ) + { + printf( "Invalid break point # %d\n", which_bp ); + return 0; + } + + if( ! bug_ctx.hw_debug_enabled ) + { + bug_ctx.hw_debug_enabled = 1; + } + + SET_IABR( addr | 0x00000002 ); + + return which_bp; +} /* bedbug603e_set */ + + + +/* ====================================================================== + * Disable a specific breakoint by setting the IABR register to zero. + * ====================================================================== */ + +int bedbug603e_clear( int which_bp ) +{ + /* -------------------------------------------------- */ + + if( which_bp < 1 || which_bp > MAX_BREAK_POINTS ) + { + printf( "Invalid break point # (%d)\n", which_bp ); + return -1; + } + + SET_IABR( 0 ); + + return 0; +} /* bedbug603e_clear */ + + +/* ====================================================================== */ +#endif diff --git a/arch/ppc/cpu/mpc8260/commproc.c b/arch/ppc/cpu/mpc8260/commproc.c new file mode 100644 index 0000000..94f6bc2 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/commproc.c @@ -0,0 +1,221 @@ +/* + * This file is based on "arch/ppc/8260_io/commproc.c" - here is it's + * copyright notice: + * + * General Purpose functions for the global management of the + * 8260 Communication Processor Module. + * Copyright (c) 1999 Dan Malek (dmalek@jlc.net) + * Copyright (c) 2000 MontaVista Software, Inc (source@mvista.com) + * 2.3.99 Updates + * + * In addition to the individual control of the communication + * channels, there are a few functions that globally affect the + * communication processor. + * + * Buffer descriptors must be allocated from the dual ported memory + * space. The allocator for that is here. When the communication + * process is reset, we reclaim the memory available. There is + * currently no deallocator for this memory. + */ +#include <common.h> +#include <asm/cpm_8260.h> + +DECLARE_GLOBAL_DATA_PTR; + +void +m8260_cpm_reset(void) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + volatile ulong count; + + /* Reclaim the DP memory for our use. + */ + gd->dp_alloc_base = CPM_DATAONLY_BASE; + gd->dp_alloc_top = gd->dp_alloc_base + CPM_DATAONLY_SIZE; + + /* + * Reset CPM + */ + immr->im_cpm.cp_cpcr = CPM_CR_RST; + count = 0; + do { /* Spin until command processed */ + __asm__ __volatile__ ("eieio"); + } while ((immr->im_cpm.cp_cpcr & CPM_CR_FLG) && ++count < 1000000); + +#ifdef CONFIG_HARD_I2C + *((unsigned short*)(&immr->im_dprambase[PROFF_I2C_BASE])) = 0; +#endif +} + +/* Allocate some memory from the dual ported ram. + * To help protocols with object alignment restrictions, we do that + * if they ask. + */ +uint +m8260_cpm_dpalloc(uint size, uint align) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + uint retloc; + uint align_mask, off; + uint savebase; + + align_mask = align - 1; + savebase = gd->dp_alloc_base; + + if ((off = (gd->dp_alloc_base & align_mask)) != 0) + gd->dp_alloc_base += (align - off); + + if ((off = size & align_mask) != 0) + size += align - off; + + if ((gd->dp_alloc_base + size) >= gd->dp_alloc_top) { + gd->dp_alloc_base = savebase; + panic("m8260_cpm_dpalloc: ran out of dual port ram!"); + } + + retloc = gd->dp_alloc_base; + gd->dp_alloc_base += size; + + memset((void *)&immr->im_dprambase[retloc], 0, size); + + return(retloc); +} + +/* We also own one page of host buffer space for the allocation of + * UART "fifos" and the like. + */ +uint +m8260_cpm_hostalloc(uint size, uint align) +{ + /* the host might not even have RAM yet - just use dual port RAM */ + return (m8260_cpm_dpalloc(size, align)); +} + +/* Set a baud rate generator. This needs lots of work. There are + * eight BRGs, which can be connected to the CPM channels or output + * as clocks. The BRGs are in two different block of internal + * memory mapped space. + * The baud rate clock is the system clock divided by something. + * It was set up long ago during the initial boot phase and is + * is given to us. + * Baud rate clocks are zero-based in the driver code (as that maps + * to port numbers). Documentation uses 1-based numbering. + */ +#define BRG_INT_CLK gd->brg_clk +#define BRG_UART_CLK (BRG_INT_CLK / 16) + +/* This function is used by UARTs, or anything else that uses a 16x + * oversampled clock. + */ +void +m8260_cpm_setbrg(uint brg, uint rate) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + volatile uint *bp; + uint cd = BRG_UART_CLK / rate; + + if ((BRG_UART_CLK % rate) < (rate / 2)) + cd--; + if (brg < 4) { + bp = (uint *)&immr->im_brgc1; + } + else { + bp = (uint *)&immr->im_brgc5; + brg -= 4; + } + bp += brg; + *bp = (cd << 1) | CPM_BRG_EN; +} + +/* This function is used to set high speed synchronous baud rate + * clocks. + */ +void +m8260_cpm_fastbrg(uint brg, uint rate, int div16) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + volatile uint *bp; + + /* This is good enough to get SMCs running..... + */ + if (brg < 4) { + bp = (uint *)&immr->im_brgc1; + } + else { + bp = (uint *)&immr->im_brgc5; + brg -= 4; + } + bp += brg; + *bp = (((((BRG_INT_CLK+rate-1)/rate)-1)&0xfff)<<1)|CPM_BRG_EN; + if (div16) + *bp |= CPM_BRG_DIV16; +} + +/* This function is used to set baud rate generators using an external + * clock source and 16x oversampling. + */ + +void +m8260_cpm_extcbrg(uint brg, uint rate, uint extclk, int pinsel) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + volatile uint *bp; + + if (brg < 4) { + bp = (uint *)&immr->im_brgc1; + } + else { + bp = (uint *)&immr->im_brgc5; + brg -= 4; + } + bp += brg; + *bp = ((((((extclk/16)+rate-1)/rate)-1)&0xfff)<<1)|CPM_BRG_EN; + if (pinsel == 0) + *bp |= CPM_BRG_EXTC_CLK3_9; + else + *bp |= CPM_BRG_EXTC_CLK5_15; +} + +#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) + +void post_word_store (ulong a) +{ + volatile ulong *save_addr = + (volatile ulong *)(CONFIG_SYS_IMMR + CPM_POST_WORD_ADDR); + + *save_addr = a; +} + +ulong post_word_load (void) +{ + volatile ulong *save_addr = + (volatile ulong *)(CONFIG_SYS_IMMR + CPM_POST_WORD_ADDR); + + return *save_addr; +} + +#endif /* CONFIG_POST || CONFIG_LOGBUFFER*/ + +#ifdef CONFIG_BOOTCOUNT_LIMIT + +void bootcount_store (ulong a) +{ + volatile ulong *save_addr = + (volatile ulong *)(CONFIG_SYS_IMMR + CPM_BOOTCOUNT_ADDR); + + save_addr[0] = a; + save_addr[1] = BOOTCOUNT_MAGIC; +} + +ulong bootcount_load (void) +{ + volatile ulong *save_addr = + (volatile ulong *)(CONFIG_SYS_IMMR + CPM_BOOTCOUNT_ADDR); + + if (save_addr[1] != BOOTCOUNT_MAGIC) + return 0; + else + return save_addr[0]; +} + +#endif /* CONFIG_BOOTCOUNT_LIMIT */ diff --git a/arch/ppc/cpu/mpc8260/config.mk b/arch/ppc/cpu/mpc8260/config.mk new file mode 100644 index 0000000..51bb9fa --- /dev/null +++ b/arch/ppc/cpu/mpc8260/config.mk @@ -0,0 +1,30 @@ +# +# (C) Copyright 2000 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +PLATFORM_RELFLAGS += -fPIC -meabi + +PLATFORM_CPPFLAGS += -DCONFIG_8260 -DCONFIG_CPM2 -ffixed-r2 \ + -mstring -mcpu=603e -mmultiple + +# Use default linker script. Board port can override in board/*/config.mk +LDSCRIPT := $(SRCTREE)/arch/ppc/cpu/mpc8260/u-boot.lds diff --git a/arch/ppc/cpu/mpc8260/cpu.c b/arch/ppc/cpu/mpc8260/cpu.c new file mode 100644 index 0000000..aedbf29 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/cpu.c @@ -0,0 +1,338 @@ +/* + * (C) Copyright 2000-2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * CPU specific code for the MPC825x / MPC826x / MPC827x / MPC828x + * + * written or collected and sometimes rewritten by + * Magnus Damm <damm@bitsmart.com> + * + * modified by + * Wolfgang Denk <wd@denx.de> + * + * modified for 8260 by + * Murray Jensen <Murray.Jensen@cmst.csiro.au> + * + * added 8260 masks by + * Marius Groeger <mag@sysgo.de> + * + * added HiP7 (824x/827x/8280) processors support by + * Yuli Barcohen <yuli@arabellasw.com> + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <mpc8260.h> +#include <netdev.h> +#include <asm/processor.h> +#include <asm/cpm_8260.h> + +#if defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#include <libfdt_env.h> +#include <fdt_support.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_GET_CPU_STR_F) +extern int get_cpu_str_f (char *buf); +#endif + +int checkcpu (void) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + ulong clock = gd->cpu_clk; + uint pvr = get_pvr (); + uint immr, rev, m, k; + char buf[32]; + + puts ("CPU: "); + + switch (pvr) { + case PVR_8260: + case PVR_8260_HIP3: + k = 3; + break; + case PVR_8260_HIP4: + k = 4; + break; + case PVR_8260_HIP7R1: + case PVR_8260_HIP7RA: + case PVR_8260_HIP7: + k = 7; + break; + default: + return -1; /* whoops! not an MPC8260 */ + } + rev = pvr & 0xff; + + immr = immap->im_memctl.memc_immr; + if ((immr & IMMR_ISB_MSK) != CONFIG_SYS_IMMR) + return -1; /* whoops! someone moved the IMMR */ + +#if defined(CONFIG_GET_CPU_STR_F) + get_cpu_str_f (buf); + printf ("%s (HiP%d Rev %02x, Mask ", buf, k, rev); +#else + printf (CPU_ID_STR " (HiP%d Rev %02x, Mask ", k, rev); +#endif + + /* + * the bottom 16 bits of the immr are the Part Number and Mask Number + * (4-34); the 16 bits at PROFF_REVNUM (0x8af0) in dual port ram is the + * RISC Microcode Revision Number (13-10). + * For the 8260, Motorola doesn't include the Microcode Revision + * in the mask. + */ + m = immr & (IMMR_PARTNUM_MSK | IMMR_MASKNUM_MSK); + k = *((ushort *) & immap->im_dprambase[PROFF_REVNUM]); + + switch (m) { + case 0x0000: + puts ("0.2 2J24M"); + break; + case 0x0010: + puts ("A.0 K22A"); + break; + case 0x0011: + puts ("A.1 1K22A-XC"); + break; + case 0x0001: + puts ("B.1 1K23A"); + break; + case 0x0021: + puts ("B.2 2K23A-XC"); + break; + case 0x0023: + puts ("B.3 3K23A"); + break; + case 0x0024: + puts ("C.2 6K23A"); + break; + case 0x0060: + puts ("A.0(A) 2K25A"); + break; + case 0x0062: + puts ("B.1 4K25A"); + break; + case 0x0064: + puts ("C.0 5K25A"); + break; + case 0x0A00: + puts ("0.0 0K49M"); + break; + case 0x0A01: + puts ("0.1 1K49M"); + break; + case 0x0A10: + puts ("1.0 1K49M"); + break; + case 0x0C00: + puts ("0.0 0K50M"); + break; + case 0x0C10: + puts ("1.0 1K50M"); + break; + case 0x0D00: + puts ("0.0 0K50M"); + break; + case 0x0D10: + puts ("1.0 1K50M"); + break; + default: + printf ("unknown [immr=0x%04x,k=0x%04x]", m, k); + break; + } + + printf (") at %s MHz\n", strmhz (buf, clock)); + + return 0; +} + +/* ------------------------------------------------------------------------- */ +/* configures a UPM by writing into the UPM RAM array */ +/* uses bank 11 and a dummy physical address (=BRx_BA_MSK) */ +/* NOTE: the physical address chosen must not overlap into any other area */ +/* mapped by the memory controller because bank 11 has the lowest priority */ + +void upmconfig (uint upm, uint * table, uint size) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + volatile memctl8260_t *memctl = &immap->im_memctl; + volatile uchar *dummy = (uchar *) BRx_BA_MSK; /* set all BA bits */ + uint i; + + /* first set up bank 11 to reference the correct UPM at a dummy address */ + + memctl->memc_or11 = ORxU_AM_MSK; /* set all AM bits */ + + switch (upm) { + + case UPMA: + memctl->memc_br11 = + ((uint)dummy & BRx_BA_MSK) | BRx_PS_32 | BRx_MS_UPMA | + BRx_V; + memctl->memc_mamr = MxMR_OP_WARR; + break; + + case UPMB: + memctl->memc_br11 = + ((uint)dummy & BRx_BA_MSK) | BRx_PS_32 | BRx_MS_UPMB | + BRx_V; + memctl->memc_mbmr = MxMR_OP_WARR; + break; + + case UPMC: + memctl->memc_br11 = + ((uint)dummy & BRx_BA_MSK) | BRx_PS_32 | BRx_MS_UPMC | + BRx_V; + memctl->memc_mcmr = MxMR_OP_WARR; + break; + + default: + panic ("upmconfig passed invalid UPM number (%u)\n", upm); + break; + + } + + /* + * at this point, the dummy address is set up to access the selected UPM, + * the MAD pointer is zero, and the MxMR OP is set for writing to RAM + * + * now we simply load the mdr with each word and poke the dummy address. + * the MAD is incremented on each access. + */ + + for (i = 0; i < size; i++) { + memctl->memc_mdr = table[i]; + *dummy = 0; + } + + /* now kill bank 11 */ + memctl->memc_br11 = 0; +} + +/* ------------------------------------------------------------------------- */ + +#if !defined(CONFIG_HAVE_OWN_RESET) +int +do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + ulong msr, addr; + + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + + immap->im_clkrst.car_rmr = RMR_CSRE; /* Checkstop Reset enable */ + + /* Interrupts and MMU off */ + __asm__ __volatile__ ("mfmsr %0":"=r" (msr):); + + msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR); + __asm__ __volatile__ ("mtmsr %0"::"r" (msr)); + + /* + * Trying to execute the next instruction at a non-existing address + * should cause a machine check, resulting in reset + */ +#ifdef CONFIG_SYS_RESET_ADDRESS + addr = CONFIG_SYS_RESET_ADDRESS; +#else + /* + * note: when CONFIG_SYS_MONITOR_BASE points to a RAM address, CONFIG_SYS_MONITOR_BASE + * - sizeof (ulong) is usually a valid address. Better pick an address + * known to be invalid on your system and assign it to CONFIG_SYS_RESET_ADDRESS. + */ + addr = CONFIG_SYS_MONITOR_BASE - sizeof (ulong); +#endif + ((void (*)(void)) addr) (); + return 1; + +} +#endif /* CONFIG_HAVE_OWN_RESET */ + +/* ------------------------------------------------------------------------- */ + +/* + * Get timebase clock frequency (like cpu_clk in Hz) + * + */ +unsigned long get_tbclk (void) +{ + ulong tbclk; + + tbclk = (gd->bus_clk + 3L) / 4L; + + return (tbclk); +} + +/* ------------------------------------------------------------------------- */ + +#if defined(CONFIG_WATCHDOG) +void watchdog_reset (void) +{ + int re_enable = disable_interrupts (); + + reset_8260_watchdog ((immap_t *) CONFIG_SYS_IMMR); + if (re_enable) + enable_interrupts (); +} +#endif /* CONFIG_WATCHDOG */ + +/* ------------------------------------------------------------------------- */ +#if defined(CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP) +void ft_cpu_setup (void *blob, bd_t *bd) +{ +#if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) ||\ + defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3) + fdt_fixup_ethernet(blob); +#endif + + do_fixup_by_compat_u32(blob, "fsl,cpm2-brg", + "clock-frequency", bd->bi_brgfreq, 1); + + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "bus-frequency", bd->bi_busfreq, 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "timebase-frequency", OF_TBCLK, 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "clock-frequency", bd->bi_intfreq, 1); + fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize); +} +#endif /* CONFIG_OF_LIBFDT */ + +/* + * Initializes on-chip ethernet controllers. + * to override, implement board_eth_init() + */ +int cpu_eth_init(bd_t *bis) +{ +#if defined(CONFIG_ETHER_ON_FCC) + fec_initialize(bis); +#endif +#if defined(CONFIG_ETHER_ON_SCC) + mpc82xx_scc_enet_initialize(bis); +#endif + return 0; +} diff --git a/arch/ppc/cpu/mpc8260/cpu_init.c b/arch/ppc/cpu/mpc8260/cpu_init.c new file mode 100644 index 0000000..1d52773 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/cpu_init.c @@ -0,0 +1,292 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc8260.h> +#include <asm/cpm_8260.h> +#include <ioports.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_BOARD_GET_CPU_CLK_F) +extern unsigned long board_get_cpu_clk_f (void); +#endif + +static void config_8260_ioports (volatile immap_t * immr) +{ + int portnum; + + for (portnum = 0; portnum < 4; portnum++) { + uint pmsk = 0, + ppar = 0, + psor = 0, + pdir = 0, + podr = 0, + pdat = 0; + iop_conf_t *iopc = (iop_conf_t *) & iop_conf_tab[portnum][0]; + iop_conf_t *eiopc = iopc + 32; + uint msk = 1; + + /* + * NOTE: + * index 0 refers to pin 31, + * index 31 refers to pin 0 + */ + while (iopc < eiopc) { + if (iopc->conf) { + pmsk |= msk; + if (iopc->ppar) + ppar |= msk; + if (iopc->psor) + psor |= msk; + if (iopc->pdir) + pdir |= msk; + if (iopc->podr) + podr |= msk; + if (iopc->pdat) + pdat |= msk; + } + + msk <<= 1; + iopc++; + } + + if (pmsk != 0) { + volatile ioport_t *iop = ioport_addr (immr, portnum); + uint tpmsk = ~pmsk; + + /* + * the (somewhat confused) paragraph at the + * bottom of page 35-5 warns that there might + * be "unknown behaviour" when programming + * PSORx and PDIRx, if PPARx = 1, so I + * decided this meant I had to disable the + * dedicated function first, and enable it + * last. + */ + iop->ppar &= tpmsk; + iop->psor = (iop->psor & tpmsk) | psor; + iop->podr = (iop->podr & tpmsk) | podr; + iop->pdat = (iop->pdat & tpmsk) | pdat; + iop->pdir = (iop->pdir & tpmsk) | pdir; + iop->ppar |= ppar; + } + } +} + +#define SET_VAL_MASK(a, b, mask) ((a & mask) | (b & ~mask)) +/* + * Breath some life into the CPU... + * + * Set up the memory map, + * initialize a bunch of registers, + * initialize the UPM's + */ +void cpu_init_f (volatile immap_t * immr) +{ +#if !defined(CONFIG_COGENT) /* done in start.S for the cogent */ + uint sccr; +#endif +#if defined(CONFIG_BOARD_GET_CPU_CLK_F) + unsigned long cpu_clk; +#endif + volatile memctl8260_t *memctl = &immr->im_memctl; + extern void m8260_cpm_reset (void); + + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); + + /* Clear initial global data */ + memset ((void *) gd, 0, sizeof (gd_t)); + + /* RSR - Reset Status Register - clear all status (5-4) */ + gd->reset_status = immr->im_clkrst.car_rsr; + immr->im_clkrst.car_rsr = RSR_ALLBITS; + + /* RMR - Reset Mode Register - contains checkstop reset enable (5-5) */ + immr->im_clkrst.car_rmr = CONFIG_SYS_RMR; + + /* BCR - Bus Configuration Register (4-25) */ +#if defined(CONFIG_SYS_BCR_60x) && (CONFIG_SYS_BCR_SINGLE) + if (immr->im_siu_conf.sc_bcr & BCR_EBM) { + immr->im_siu_conf.sc_bcr = SET_VAL_MASK(immr->im_siu_conf.sc_bcr, CONFIG_SYS_BCR_60x, 0x80000010); + } else { + immr->im_siu_conf.sc_bcr = SET_VAL_MASK(immr->im_siu_conf.sc_bcr, CONFIG_SYS_BCR_SINGLE, 0x80000010); + } +#else + immr->im_siu_conf.sc_bcr = CONFIG_SYS_BCR; +#endif + + /* SIUMCR - contains debug pin configuration (4-31) */ +#if defined(CONFIG_SYS_SIUMCR_LOW) && (CONFIG_SYS_SIUMCR_HIGH) + cpu_clk = board_get_cpu_clk_f (); + if (cpu_clk >= 100000000) { + immr->im_siu_conf.sc_siumcr = SET_VAL_MASK(immr->im_siu_conf.sc_siumcr, CONFIG_SYS_SIUMCR_HIGH, 0x9f3cc000); + } else { + immr->im_siu_conf.sc_siumcr = SET_VAL_MASK(immr->im_siu_conf.sc_siumcr, CONFIG_SYS_SIUMCR_LOW, 0x9f3cc000); + } +#else + immr->im_siu_conf.sc_siumcr = CONFIG_SYS_SIUMCR; +#endif + + config_8260_ioports (immr); + + /* initialize time counter status and control register (4-40) */ + immr->im_sit.sit_tmcntsc = CONFIG_SYS_TMCNTSC; + + /* initialize the PIT (4-42) */ + immr->im_sit.sit_piscr = CONFIG_SYS_PISCR; + +#if !defined(CONFIG_COGENT) /* done in start.S for the cogent */ + /* System clock control register (9-8) */ + sccr = immr->im_clkrst.car_sccr & + (SCCR_PCI_MODE | SCCR_PCI_MODCK | SCCR_PCIDF_MSK); + immr->im_clkrst.car_sccr = sccr | + (CONFIG_SYS_SCCR & ~(SCCR_PCI_MODE | SCCR_PCI_MODCK | SCCR_PCIDF_MSK) ); +#endif /* !CONFIG_COGENT */ + + /* + * Memory Controller: + */ + + /* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary + * addresses - these have to be modified later when FLASH size + * has been determined + */ + +#if defined(CONFIG_SYS_OR0_REMAP) + memctl->memc_or0 = CONFIG_SYS_OR0_REMAP; +#endif +#if defined(CONFIG_SYS_OR1_REMAP) + memctl->memc_or1 = CONFIG_SYS_OR1_REMAP; +#endif + + /* now restrict to preliminary range */ + /* the PS came from the HRCW, don´t change it */ + memctl->memc_br0 = SET_VAL_MASK(memctl->memc_br0 , CONFIG_SYS_BR0_PRELIM, BRx_PS_MSK); + memctl->memc_or0 = CONFIG_SYS_OR0_PRELIM; + +#if defined(CONFIG_SYS_BR1_PRELIM) && defined(CONFIG_SYS_OR1_PRELIM) + memctl->memc_or1 = CONFIG_SYS_OR1_PRELIM; + memctl->memc_br1 = CONFIG_SYS_BR1_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR2_PRELIM) && defined(CONFIG_SYS_OR2_PRELIM) + memctl->memc_or2 = CONFIG_SYS_OR2_PRELIM; + memctl->memc_br2 = CONFIG_SYS_BR2_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR3_PRELIM) && defined(CONFIG_SYS_OR3_PRELIM) + memctl->memc_or3 = CONFIG_SYS_OR3_PRELIM; + memctl->memc_br3 = CONFIG_SYS_BR3_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR4_PRELIM) && defined(CONFIG_SYS_OR4_PRELIM) + memctl->memc_or4 = CONFIG_SYS_OR4_PRELIM; + memctl->memc_br4 = CONFIG_SYS_BR4_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR5_PRELIM) && defined(CONFIG_SYS_OR5_PRELIM) + memctl->memc_or5 = CONFIG_SYS_OR5_PRELIM; + memctl->memc_br5 = CONFIG_SYS_BR5_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR6_PRELIM) && defined(CONFIG_SYS_OR6_PRELIM) + memctl->memc_or6 = CONFIG_SYS_OR6_PRELIM; + memctl->memc_br6 = CONFIG_SYS_BR6_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR7_PRELIM) && defined(CONFIG_SYS_OR7_PRELIM) + memctl->memc_or7 = CONFIG_SYS_OR7_PRELIM; + memctl->memc_br7 = CONFIG_SYS_BR7_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR8_PRELIM) && defined(CONFIG_SYS_OR8_PRELIM) + memctl->memc_or8 = CONFIG_SYS_OR8_PRELIM; + memctl->memc_br8 = CONFIG_SYS_BR8_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR9_PRELIM) && defined(CONFIG_SYS_OR9_PRELIM) + memctl->memc_or9 = CONFIG_SYS_OR9_PRELIM; + memctl->memc_br9 = CONFIG_SYS_BR9_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR10_PRELIM) && defined(CONFIG_SYS_OR10_PRELIM) + memctl->memc_or10 = CONFIG_SYS_OR10_PRELIM; + memctl->memc_br10 = CONFIG_SYS_BR10_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR11_PRELIM) && defined(CONFIG_SYS_OR11_PRELIM) + memctl->memc_or11 = CONFIG_SYS_OR11_PRELIM; + memctl->memc_br11 = CONFIG_SYS_BR11_PRELIM; +#endif + + m8260_cpm_reset (); +} + +/* + * initialize higher level parts of CPU like time base and timers + */ +int cpu_init_r (void) +{ + volatile immap_t *immr = (immap_t *) gd->bd->bi_immr_base; + + immr->im_cpm.cp_rccr = CONFIG_SYS_RCCR; + + return (0); +} + +/* + * print out the reason for the reset + */ +int prt_8260_rsr (void) +{ + static struct { + ulong mask; + char *desc; + } bits[] = { + { + RSR_JTRS, "JTAG"}, { + RSR_CSRS, "Check Stop"}, { + RSR_SWRS, "Software Watchdog"}, { + RSR_BMRS, "Bus Monitor"}, { + RSR_ESRS, "External Soft"}, { + RSR_EHRS, "External Hard"} + }; + static int n = sizeof bits / sizeof bits[0]; + ulong rsr = gd->reset_status; + int i; + char *sep; + + puts (CPU_ID_STR " Reset Status:"); + + sep = " "; + for (i = 0; i < n; i++) + if (rsr & bits[i].mask) { + printf ("%s%s", sep, bits[i].desc); + sep = ", "; + } + + puts ("\n\n"); + return (0); +} diff --git a/arch/ppc/cpu/mpc8260/ether_fcc.c b/arch/ppc/cpu/mpc8260/ether_fcc.c new file mode 100644 index 0000000..5ac02a0 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/ether_fcc.c @@ -0,0 +1,1190 @@ +/* + * MPC8260 FCC Fast Ethernet + * + * Copyright (c) 2000 MontaVista Software, Inc. Dan Malek (dmalek@jlc.net) + * + * (C) Copyright 2000 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * MPC8260 FCC Fast Ethernet + * Basic ET HW initialization and packet RX/TX routines + * + * This code will not perform the IO port configuration. This should be + * done in the iop_conf_t structure specific for the board. + * + * TODO: + * add a PHY driver to do the negotiation + * reflect negotiation results in FPSMR + * look for ways to configure the board specific stuff elsewhere, eg. + * config_xxx.h or the board directory + */ + +#include <common.h> +#include <malloc.h> +#include <asm/cpm_8260.h> +#include <mpc8260.h> +#include <command.h> +#include <config.h> +#include <net.h> + +#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) +#include <miiphy.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_ETHER_ON_FCC) && defined(CONFIG_CMD_NET) && \ + defined(CONFIG_NET_MULTI) + +static struct ether_fcc_info_s +{ + int ether_index; + int proff_enet; + ulong cpm_cr_enet_sblock; + ulong cpm_cr_enet_page; + ulong cmxfcr_mask; + ulong cmxfcr_value; +} + ether_fcc_info[] = +{ +#ifdef CONFIG_ETHER_ON_FCC1 +{ + 0, + PROFF_FCC1, + CPM_CR_FCC1_SBLOCK, + CPM_CR_FCC1_PAGE, + CONFIG_SYS_CMXFCR_MASK1, + CONFIG_SYS_CMXFCR_VALUE1 +}, +#endif + +#ifdef CONFIG_ETHER_ON_FCC2 +{ + 1, + PROFF_FCC2, + CPM_CR_FCC2_SBLOCK, + CPM_CR_FCC2_PAGE, + CONFIG_SYS_CMXFCR_MASK2, + CONFIG_SYS_CMXFCR_VALUE2 +}, +#endif + +#ifdef CONFIG_ETHER_ON_FCC3 +{ + 2, + PROFF_FCC3, + CPM_CR_FCC3_SBLOCK, + CPM_CR_FCC3_PAGE, + CONFIG_SYS_CMXFCR_MASK3, + CONFIG_SYS_CMXFCR_VALUE3 +}, +#endif +}; + +/*---------------------------------------------------------------------*/ + +/* Maximum input DMA size. Must be a should(?) be a multiple of 4. */ +#define PKT_MAXDMA_SIZE 1520 + +/* The FCC stores dest/src/type, data, and checksum for receive packets. */ +#define PKT_MAXBUF_SIZE 1518 +#define PKT_MINBUF_SIZE 64 + +/* Maximum input buffer size. Must be a multiple of 32. */ +#define PKT_MAXBLR_SIZE 1536 + +#define TOUT_LOOP 1000000 + +#define TX_BUF_CNT 2 +#ifdef __GNUC__ +static char txbuf[TX_BUF_CNT][PKT_MAXBLR_SIZE] __attribute__ ((aligned(8))); +#else +#error "txbuf must be 64-bit aligned" +#endif + +static uint rxIdx; /* index of the current RX buffer */ +static uint txIdx; /* index of the current TX buffer */ + +/* + * FCC Ethernet Tx and Rx buffer descriptors. + * Provide for Double Buffering + * Note: PKTBUFSRX is defined in net.h + */ + +typedef volatile struct rtxbd { + cbd_t rxbd[PKTBUFSRX]; + cbd_t txbd[TX_BUF_CNT]; +} RTXBD; + +/* Good news: the FCC supports external BDs! */ +#ifdef __GNUC__ +static RTXBD rtx __attribute__ ((aligned(8))); +#else +#error "rtx must be 64-bit aligned" +#endif + +static int fec_send(struct eth_device* dev, volatile void *packet, int length) +{ + int i; + int result = 0; + + if (length <= 0) { + printf("fec: bad packet size: %d\n", length); + goto out; + } + + for(i=0; rtx.txbd[txIdx].cbd_sc & BD_ENET_TX_READY; i++) { + if (i >= TOUT_LOOP) { + puts ("fec: tx buffer not ready\n"); + goto out; + } + } + + rtx.txbd[txIdx].cbd_bufaddr = (uint)packet; + rtx.txbd[txIdx].cbd_datlen = length; + rtx.txbd[txIdx].cbd_sc |= (BD_ENET_TX_READY | BD_ENET_TX_LAST | + BD_ENET_TX_WRAP); + + for(i=0; rtx.txbd[txIdx].cbd_sc & BD_ENET_TX_READY; i++) { + if (i >= TOUT_LOOP) { + puts ("fec: tx error\n"); + goto out; + } + } + +#ifdef ET_DEBUG + printf("cycles: %d status: %04x\n", i, rtx.txbd[txIdx].cbd_sc); +#endif + + /* return only status bits */ + result = rtx.txbd[txIdx].cbd_sc & BD_ENET_TX_STATS; + +out: + return result; +} + +static int fec_recv(struct eth_device* dev) +{ + int length; + + for (;;) + { + if (rtx.rxbd[rxIdx].cbd_sc & BD_ENET_RX_EMPTY) { + length = -1; + break; /* nothing received - leave for() loop */ + } + length = rtx.rxbd[rxIdx].cbd_datlen; + + if (rtx.rxbd[rxIdx].cbd_sc & 0x003f) { + printf("fec: rx error %04x\n", rtx.rxbd[rxIdx].cbd_sc); + } + else { + /* Pass the packet up to the protocol layers. */ + NetReceive(NetRxPackets[rxIdx], length - 4); + } + + + /* Give the buffer back to the FCC. */ + rtx.rxbd[rxIdx].cbd_datlen = 0; + + /* wrap around buffer index when necessary */ + if ((rxIdx + 1) >= PKTBUFSRX) { + rtx.rxbd[PKTBUFSRX - 1].cbd_sc = (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY); + rxIdx = 0; + } + else { + rtx.rxbd[rxIdx].cbd_sc = BD_ENET_RX_EMPTY; + rxIdx++; + } + } + return length; +} + + +static int fec_init(struct eth_device* dev, bd_t *bis) +{ + struct ether_fcc_info_s * info = dev->priv; + int i; + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + volatile cpm8260_t *cp = &(immr->im_cpm); + fcc_enet_t *pram_ptr; + unsigned long mem_addr; + +#if 0 + mii_discover_phy(); +#endif + + /* 28.9 - (1-2): ioports have been set up already */ + + /* 28.9 - (3): connect FCC's tx and rx clocks */ + immr->im_cpmux.cmx_uar = 0; + immr->im_cpmux.cmx_fcr = (immr->im_cpmux.cmx_fcr & ~info->cmxfcr_mask) | + info->cmxfcr_value; + + /* 28.9 - (4): GFMR: disable tx/rx, CCITT CRC, Mode Ethernet */ + immr->im_fcc[info->ether_index].fcc_gfmr = + FCC_GFMR_MODE_ENET | FCC_GFMR_TCRC_32; + + /* 28.9 - (5): FPSMR: enable full duplex, select CCITT CRC for Ethernet */ + immr->im_fcc[info->ether_index].fcc_fpsmr = CONFIG_SYS_FCC_PSMR | FCC_PSMR_ENCRC; + + /* 28.9 - (6): FDSR: Ethernet Syn */ + immr->im_fcc[info->ether_index].fcc_fdsr = 0xD555; + + /* reset indeces to current rx/tx bd (see eth_send()/eth_rx()) */ + rxIdx = 0; + txIdx = 0; + + /* Setup Receiver Buffer Descriptors */ + for (i = 0; i < PKTBUFSRX; i++) + { + rtx.rxbd[i].cbd_sc = BD_ENET_RX_EMPTY; + rtx.rxbd[i].cbd_datlen = 0; + rtx.rxbd[i].cbd_bufaddr = (uint)NetRxPackets[i]; + } + rtx.rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP; + + /* Setup Ethernet Transmitter Buffer Descriptors */ + for (i = 0; i < TX_BUF_CNT; i++) + { + rtx.txbd[i].cbd_sc = (BD_ENET_TX_PAD | BD_ENET_TX_LAST | BD_ENET_TX_TC); + rtx.txbd[i].cbd_datlen = 0; + rtx.txbd[i].cbd_bufaddr = (uint)&txbuf[i][0]; + } + rtx.txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP; + + /* 28.9 - (7): initialise parameter ram */ + pram_ptr = (fcc_enet_t *)&(immr->im_dprambase[info->proff_enet]); + + /* clear whole structure to make sure all reserved fields are zero */ + memset((void*)pram_ptr, 0, sizeof(fcc_enet_t)); + + /* + * common Parameter RAM area + * + * Allocate space in the reserved FCC area of DPRAM for the + * internal buffers. No one uses this space (yet), so we + * can do this. Later, we will add resource management for + * this area. + */ + mem_addr = CPM_FCC_SPECIAL_BASE + ((info->ether_index) * 64); + pram_ptr->fen_genfcc.fcc_riptr = mem_addr; + pram_ptr->fen_genfcc.fcc_tiptr = mem_addr+32; + /* + * Set maximum bytes per receive buffer. + * It must be a multiple of 32. + */ + pram_ptr->fen_genfcc.fcc_mrblr = PKT_MAXBLR_SIZE; + pram_ptr->fen_genfcc.fcc_rstate = (CPMFCR_GBL | CPMFCR_EB | + CONFIG_SYS_CPMFCR_RAMTYPE) << 24; + pram_ptr->fen_genfcc.fcc_rbase = (unsigned int)(&rtx.rxbd[rxIdx]); + pram_ptr->fen_genfcc.fcc_tstate = (CPMFCR_GBL | CPMFCR_EB | + CONFIG_SYS_CPMFCR_RAMTYPE) << 24; + pram_ptr->fen_genfcc.fcc_tbase = (unsigned int)(&rtx.txbd[txIdx]); + + /* protocol-specific area */ + pram_ptr->fen_cmask = 0xdebb20e3; /* CRC mask */ + pram_ptr->fen_cpres = 0xffffffff; /* CRC preset */ + pram_ptr->fen_retlim = 15; /* Retry limit threshold */ + pram_ptr->fen_mflr = PKT_MAXBUF_SIZE; /* maximum frame length register */ + /* + * Set Ethernet station address. + * + * This is supplied in the board information structure, so we + * copy that into the controller. + * So, far we have only been given one Ethernet address. We make + * it unique by setting a few bits in the upper byte of the + * non-static part of the address. + */ +#define ea eth_get_dev()->enetaddr + pram_ptr->fen_paddrh = (ea[5] << 8) + ea[4]; + pram_ptr->fen_paddrm = (ea[3] << 8) + ea[2]; + pram_ptr->fen_paddrl = (ea[1] << 8) + ea[0]; +#undef ea + pram_ptr->fen_minflr = PKT_MINBUF_SIZE; /* minimum frame length register */ + /* pad pointer. use tiptr since we don't need a specific padding char */ + pram_ptr->fen_padptr = pram_ptr->fen_genfcc.fcc_tiptr; + pram_ptr->fen_maxd1 = PKT_MAXDMA_SIZE; /* maximum DMA1 length */ + pram_ptr->fen_maxd2 = PKT_MAXDMA_SIZE; /* maximum DMA2 length */ + pram_ptr->fen_rfthr = 1; + pram_ptr->fen_rfcnt = 1; +#if 0 + printf("pram_ptr->fen_genfcc.fcc_rbase %08lx\n", + pram_ptr->fen_genfcc.fcc_rbase); + printf("pram_ptr->fen_genfcc.fcc_tbase %08lx\n", + pram_ptr->fen_genfcc.fcc_tbase); +#endif + + /* 28.9 - (8): clear out events in FCCE */ + immr->im_fcc[info->ether_index].fcc_fcce = ~0x0; + + /* 28.9 - (9): FCCM: mask all events */ + immr->im_fcc[info->ether_index].fcc_fccm = 0; + + /* 28.9 - (10-12): we don't use ethernet interrupts */ + + /* 28.9 - (13) + * + * Let's re-initialize the channel now. We have to do it later + * than the manual describes because we have just now finished + * the BD initialization. + */ + cp->cp_cpcr = mk_cr_cmd(info->cpm_cr_enet_page, + info->cpm_cr_enet_sblock, + 0x0c, + CPM_CR_INIT_TRX) | CPM_CR_FLG; + do { + __asm__ __volatile__ ("eieio"); + } while (cp->cp_cpcr & CPM_CR_FLG); + + /* 28.9 - (14): enable tx/rx in gfmr */ + immr->im_fcc[info->ether_index].fcc_gfmr |= FCC_GFMR_ENT | FCC_GFMR_ENR; + + return 1; +} + +static void fec_halt(struct eth_device* dev) +{ + struct ether_fcc_info_s * info = dev->priv; + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + + /* write GFMR: disable tx/rx */ + immr->im_fcc[info->ether_index].fcc_gfmr &= + ~(FCC_GFMR_ENT | FCC_GFMR_ENR); +} + +int fec_initialize(bd_t *bis) +{ + struct eth_device* dev; + int i; + + for (i = 0; i < sizeof(ether_fcc_info) / sizeof(ether_fcc_info[0]); i++) + { + dev = (struct eth_device*) malloc(sizeof *dev); + memset(dev, 0, sizeof *dev); + + sprintf(dev->name, "FCC%d ETHERNET", + ether_fcc_info[i].ether_index + 1); + dev->priv = ðer_fcc_info[i]; + dev->init = fec_init; + dev->halt = fec_halt; + dev->send = fec_send; + dev->recv = fec_recv; + + eth_register(dev); + +#if (defined(CONFIG_MII) || defined(CONFIG_CMD_MII)) \ + && defined(CONFIG_BITBANGMII) + miiphy_register(dev->name, + bb_miiphy_read, bb_miiphy_write); +#endif + } + + return 1; +} + +#ifdef CONFIG_ETHER_LOOPBACK_TEST + +#define ELBT_BUFSZ 1024 /* must be multiple of 32 */ + +#define ELBT_CRCSZ 4 + +#define ELBT_NRXBD 4 /* must be at least 2 */ +#define ELBT_NTXBD 4 + +#define ELBT_MAXRXERR 32 +#define ELBT_MAXTXERR 32 + +#define ELBT_CLSWAIT 1000 /* msec to wait for further input frames */ + +typedef + struct { + uint off; + char *lab; + } +elbt_prdesc; + +typedef + struct { + uint _l, _f, m, bc, mc, lg, no, sh, cr, ov, cl; + uint badsrc, badtyp, badlen, badbit; + } +elbt_rxeacc; + +static elbt_prdesc rxeacc_descs[] = { + { offsetof(elbt_rxeacc, _l), "Not Last in Frame" }, + { offsetof(elbt_rxeacc, _f), "Not First in Frame" }, + { offsetof(elbt_rxeacc, m), "Address Miss" }, + { offsetof(elbt_rxeacc, bc), "Broadcast Address" }, + { offsetof(elbt_rxeacc, mc), "Multicast Address" }, + { offsetof(elbt_rxeacc, lg), "Frame Length Violation"}, + { offsetof(elbt_rxeacc, no), "Non-Octet Alignment" }, + { offsetof(elbt_rxeacc, sh), "Short Frame" }, + { offsetof(elbt_rxeacc, cr), "CRC Error" }, + { offsetof(elbt_rxeacc, ov), "Overrun" }, + { offsetof(elbt_rxeacc, cl), "Collision" }, + { offsetof(elbt_rxeacc, badsrc), "Bad Src Address" }, + { offsetof(elbt_rxeacc, badtyp), "Bad Frame Type" }, + { offsetof(elbt_rxeacc, badlen), "Bad Frame Length" }, + { offsetof(elbt_rxeacc, badbit), "Data Compare Errors" }, +}; +static int rxeacc_ndesc = sizeof (rxeacc_descs) / sizeof (rxeacc_descs[0]); + +typedef + struct { + uint def, hb, lc, rl, rc, un, csl; + } +elbt_txeacc; + +static elbt_prdesc txeacc_descs[] = { + { offsetof(elbt_txeacc, def), "Defer Indication" }, + { offsetof(elbt_txeacc, hb), "Heartbeat" }, + { offsetof(elbt_txeacc, lc), "Late Collision" }, + { offsetof(elbt_txeacc, rl), "Retransmission Limit" }, + { offsetof(elbt_txeacc, rc), "Retry Count" }, + { offsetof(elbt_txeacc, un), "Underrun" }, + { offsetof(elbt_txeacc, csl), "Carrier Sense Lost" }, +}; +static int txeacc_ndesc = sizeof (txeacc_descs) / sizeof (txeacc_descs[0]); + +typedef + struct { + uchar rxbufs[ELBT_NRXBD][ELBT_BUFSZ]; + uchar txbufs[ELBT_NTXBD][ELBT_BUFSZ]; + cbd_t rxbd[ELBT_NRXBD]; + cbd_t txbd[ELBT_NTXBD]; + enum { Idle, Running, Closing, Closed } state; + int proff, page, sblock; + uint clstime, nsent, ntxerr, nrcvd, nrxerr; + ushort rxerrs[ELBT_MAXRXERR], txerrs[ELBT_MAXTXERR]; + elbt_rxeacc rxeacc; + elbt_txeacc txeacc; + } __attribute__ ((aligned(8))) +elbt_chan; + +static uchar patbytes[ELBT_NTXBD] = { + 0xff, 0xaa, 0x55, 0x00 +}; +static uint patwords[ELBT_NTXBD] = { + 0xffffffff, 0xaaaaaaaa, 0x55555555, 0x00000000 +}; + +#ifdef __GNUC__ +static elbt_chan elbt_chans[3] __attribute__ ((aligned(8))); +#else +#error "elbt_chans must be 64-bit aligned" +#endif + +#define CPM_CR_GRACEFUL_STOP_TX ((ushort)0x0005) + +static elbt_prdesc epram_descs[] = { + { offsetof(fcc_enet_t, fen_crcec), "CRC Errors" }, + { offsetof(fcc_enet_t, fen_alec), "Alignment Errors" }, + { offsetof(fcc_enet_t, fen_disfc), "Discarded Frames" }, + { offsetof(fcc_enet_t, fen_octc), "Octets" }, + { offsetof(fcc_enet_t, fen_colc), "Collisions" }, + { offsetof(fcc_enet_t, fen_broc), "Broadcast Frames" }, + { offsetof(fcc_enet_t, fen_mulc), "Multicast Frames" }, + { offsetof(fcc_enet_t, fen_uspc), "Undersize Frames" }, + { offsetof(fcc_enet_t, fen_frgc), "Fragments" }, + { offsetof(fcc_enet_t, fen_ospc), "Oversize Frames" }, + { offsetof(fcc_enet_t, fen_jbrc), "Jabbers" }, + { offsetof(fcc_enet_t, fen_p64c), "64 Octet Frames" }, + { offsetof(fcc_enet_t, fen_p65c), "65-127 Octet Frames" }, + { offsetof(fcc_enet_t, fen_p128c), "128-255 Octet Frames" }, + { offsetof(fcc_enet_t, fen_p256c), "256-511 Octet Frames" }, + { offsetof(fcc_enet_t, fen_p512c), "512-1023 Octet Frames" }, + { offsetof(fcc_enet_t, fen_p1024c), "1024-1518 Octet Frames"}, +}; +static int epram_ndesc = sizeof (epram_descs) / sizeof (epram_descs[0]); + +/* + * given an elbt_prdesc array and an array of base addresses, print + * each prdesc down the screen with the values fetched from each + * base address across the screen + */ +static void +print_desc (elbt_prdesc descs[], int ndesc, uchar *bases[], int nbase) +{ + elbt_prdesc *dp = descs, *edp = dp + ndesc; + int i; + + printf ("%32s", ""); + + for (i = 0; i < nbase; i++) + printf (" Channel %d", i); + + putc ('\n'); + + while (dp < edp) { + + printf ("%-32s", dp->lab); + + for (i = 0; i < nbase; i++) { + uint val = *(uint *)(bases[i] + dp->off); + + printf (" %10u", val); + } + + putc ('\n'); + + dp++; + } +} + +/* + * return number of bits that are set in a value; value contains + * nbits (right-justified) bits. + */ +static uint __inline__ +nbs (uint value, uint nbits) +{ + uint cnt = 0; +#if 1 + uint pos = sizeof (uint) * 8; + + __asm__ __volatile__ ("\ + mtctr %2\n\ +1: rlwnm. %2,%1,%4,31,31\n\ + beq 2f\n\ + addi %0,%0,1\n\ +2: subi %4,%4,1\n\ + bdnz 1b" + : "=r"(cnt) + : "r"(value), "r"(nbits), "r"(cnt), "r"(pos) + : "ctr", "cc" ); +#else + uint mask = 1; + + do { + if (value & mask) + cnt++; + mask <<= 1; + } while (--nbits); +#endif + + return (cnt); +} + +static ulong +badbits (uchar *bp, int n, ulong pat) +{ + ulong *lp, cnt = 0; + int nl; + + while (n > 0 && ((ulong)bp & (sizeof (ulong) - 1)) != 0) { + uchar diff; + + diff = *bp++ ^ (uchar)pat; + + if (diff) + cnt += nbs ((ulong)diff, 8); + + n--; + } + + lp = (ulong *)bp; + nl = n / sizeof (ulong); + n -= nl * sizeof (ulong); + + while (nl > 0) { + ulong diff; + + diff = *lp++ ^ pat; + + if (diff) + cnt += nbs (diff, 32); + + nl--; + } + + bp = (uchar *)lp; + + while (n > 0) { + uchar diff; + + diff = *bp++ ^ (uchar)pat; + + if (diff) + cnt += nbs ((ulong)diff, 8); + + n--; + } + + return (cnt); +} + +static inline unsigned short +swap16 (unsigned short x) +{ + return (((x & 0xff) << 8) | ((x & 0xff00) >> 8)); +} + +/* broadcast is not an error - we send them like that */ +#define BD_ENET_RX_ERRS (BD_ENET_RX_STATS & ~BD_ENET_RX_BC) + +void +eth_loopback_test (void) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + volatile cpm8260_t *cp = &(immr->im_cpm); + int c, nclosed; + ulong runtime, nmsec; + uchar *bases[3]; + + puts ("FCC Ethernet External loopback test\n"); + + eth_getenv_enetaddr("ethaddr", NetOurEther); + + /* + * global initialisations for all FCC channels + */ + + /* 28.9 - (1-2): ioports have been set up already */ + +#if defined(CONFIG_HYMOD) + /* + * Attention: this is board-specific + * 0, FCC1 + * 1, FCC2 + * 2, FCC3 + */ +# define FCC_START_LOOP 0 +# define FCC_END_LOOP 2 + + /* + * Attention: this is board-specific + * - FCC1 Rx-CLK is CLK10 + * - FCC1 Tx-CLK is CLK11 + * - FCC2 Rx-CLK is CLK13 + * - FCC2 Tx-CLK is CLK14 + * - FCC3 Rx-CLK is CLK15 + * - FCC3 Tx-CLK is CLK16 + */ + + /* 28.9 - (3): connect FCC's tx and rx clocks */ + immr->im_cpmux.cmx_uar = 0; + immr->im_cpmux.cmx_fcr = CMXFCR_RF1CS_CLK10|CMXFCR_TF1CS_CLK11|\ + CMXFCR_RF2CS_CLK13|CMXFCR_TF2CS_CLK14|\ + CMXFCR_RF3CS_CLK15|CMXFCR_TF3CS_CLK16; +#elif defined(CONFIG_SBC8260) || defined(CONFIG_SACSng) + /* + * Attention: this is board-specific + * 1, FCC2 + */ +# define FCC_START_LOOP 1 +# define FCC_END_LOOP 1 + + /* + * Attention: this is board-specific + * - FCC2 Rx-CLK is CLK13 + * - FCC2 Tx-CLK is CLK14 + */ + + /* 28.9 - (3): connect FCC's tx and rx clocks */ + immr->im_cpmux.cmx_uar = 0; + immr->im_cpmux.cmx_fcr = CMXFCR_RF2CS_CLK13|CMXFCR_TF2CS_CLK14; +#else +#error "eth_loopback_test not supported on your board" +#endif + + puts ("Initialise FCC channels:"); + + for (c = FCC_START_LOOP; c <= FCC_END_LOOP; c++) { + elbt_chan *ecp = &elbt_chans[c]; + volatile fcc_t *fcp = &immr->im_fcc[c]; + volatile fcc_enet_t *fpp; + int i; + ulong addr; + + /* + * initialise channel data + */ + + printf (" %d", c); + + memset ((void *)ecp, 0, sizeof (*ecp)); + + ecp->state = Idle; + + switch (c) { + + case 0: /* FCC1 */ + ecp->proff = PROFF_FCC1; + ecp->page = CPM_CR_FCC1_PAGE; + ecp->sblock = CPM_CR_FCC1_SBLOCK; + break; + + case 1: /* FCC2 */ + ecp->proff = PROFF_FCC2; + ecp->page = CPM_CR_FCC2_PAGE; + ecp->sblock = CPM_CR_FCC2_SBLOCK; + break; + + case 2: /* FCC3 */ + ecp->proff = PROFF_FCC3; + ecp->page = CPM_CR_FCC3_PAGE; + ecp->sblock = CPM_CR_FCC3_SBLOCK; + break; + } + + /* + * set up tx buffers and bds + */ + + for (i = 0; i < ELBT_NTXBD; i++) { + cbd_t *bdp = &ecp->txbd[i]; + uchar *bp = &ecp->txbufs[i][0]; + + bdp->cbd_bufaddr = (uint)bp; + /* room for crc */ + bdp->cbd_datlen = ELBT_BUFSZ - ELBT_CRCSZ; + bdp->cbd_sc = BD_ENET_TX_READY | BD_ENET_TX_PAD | \ + BD_ENET_TX_LAST | BD_ENET_TX_TC; + + memset ((void *)bp, patbytes[i], ELBT_BUFSZ); + NetSetEther (bp, NetBcastAddr, 0x8000); + } + ecp->txbd[ELBT_NTXBD - 1].cbd_sc |= BD_ENET_TX_WRAP; + + /* + * set up rx buffers and bds + */ + + for (i = 0; i < ELBT_NRXBD; i++) { + cbd_t *bdp = &ecp->rxbd[i]; + uchar *bp = &ecp->rxbufs[i][0]; + + bdp->cbd_bufaddr = (uint)bp; + bdp->cbd_datlen = 0; + bdp->cbd_sc = BD_ENET_RX_EMPTY; + + memset ((void *)bp, 0, ELBT_BUFSZ); + } + ecp->rxbd[ELBT_NRXBD - 1].cbd_sc |= BD_ENET_RX_WRAP; + + /* + * set up the FCC channel hardware + */ + + /* 28.9 - (4): GFMR: disable tx/rx, CCITT CRC, Mode Ethernet */ + fcp->fcc_gfmr = FCC_GFMR_MODE_ENET | FCC_GFMR_TCRC_32; + + /* 28.9 - (5): FPSMR: fd, enet CRC, Promis, RMON, Rx SHort */ + fcp->fcc_fpsmr = FCC_PSMR_FDE | FCC_PSMR_LPB | \ + FCC_PSMR_ENCRC | FCC_PSMR_PRO | \ + FCC_PSMR_MON | FCC_PSMR_RSH; + + /* 28.9 - (6): FDSR: Ethernet Syn */ + fcp->fcc_fdsr = 0xD555; + + /* 29.9 - (7): initialise parameter ram */ + fpp = (fcc_enet_t *)&(immr->im_dprambase[ecp->proff]); + + /* clear whole struct to make sure all resv fields are zero */ + memset ((void *)fpp, 0, sizeof (fcc_enet_t)); + + /* + * common Parameter RAM area + * + * Allocate space in the reserved FCC area of DPRAM for the + * internal buffers. No one uses this space (yet), so we + * can do this. Later, we will add resource management for + * this area. + */ + addr = CPM_FCC_SPECIAL_BASE + (c * 64); + fpp->fen_genfcc.fcc_riptr = addr; + fpp->fen_genfcc.fcc_tiptr = addr + 32; + + /* + * Set maximum bytes per receive buffer. + * It must be a multiple of 32. + * buffers are in 60x bus memory. + */ + fpp->fen_genfcc.fcc_mrblr = PKT_MAXBLR_SIZE; + fpp->fen_genfcc.fcc_rstate = (CPMFCR_GBL | CPMFCR_EB) << 24; + fpp->fen_genfcc.fcc_rbase = (unsigned int)(&ecp->rxbd[0]); + fpp->fen_genfcc.fcc_tstate = (CPMFCR_GBL | CPMFCR_EB) << 24; + fpp->fen_genfcc.fcc_tbase = (unsigned int)(&ecp->txbd[0]); + + /* protocol-specific area */ + fpp->fen_cmask = 0xdebb20e3; /* CRC mask */ + fpp->fen_cpres = 0xffffffff; /* CRC preset */ + fpp->fen_retlim = 15; /* Retry limit threshold */ + fpp->fen_mflr = PKT_MAXBUF_SIZE;/* max frame length register */ + + /* + * Set Ethernet station address. + * + * This is supplied in the board information structure, so we + * copy that into the controller. + * So, far we have only been given one Ethernet address. We use + * the same address for all channels + */ +#define ea NetOurEther + fpp->fen_paddrh = (ea[5] << 8) + ea[4]; + fpp->fen_paddrm = (ea[3] << 8) + ea[2]; + fpp->fen_paddrl = (ea[1] << 8) + ea[0]; +#undef ea + + fpp->fen_minflr = PKT_MINBUF_SIZE; /* min frame len register */ + /* + * pad pointer. use tiptr since we don't need + * a specific padding char + */ + fpp->fen_padptr = fpp->fen_genfcc.fcc_tiptr; + fpp->fen_maxd1 = PKT_MAXDMA_SIZE; /* max DMA1 length */ + fpp->fen_maxd2 = PKT_MAXDMA_SIZE; /* max DMA2 length */ + fpp->fen_rfthr = 1; + fpp->fen_rfcnt = 1; + + /* 28.9 - (8): clear out events in FCCE */ + fcp->fcc_fcce = ~0x0; + + /* 28.9 - (9): FCCM: mask all events */ + fcp->fcc_fccm = 0; + + /* 28.9 - (10-12): we don't use ethernet interrupts */ + + /* 28.9 - (13) + * + * Let's re-initialize the channel now. We have to do it later + * than the manual describes because we have just now finished + * the BD initialization. + */ + cp->cp_cpcr = mk_cr_cmd (ecp->page, ecp->sblock, \ + 0x0c, CPM_CR_INIT_TRX) | CPM_CR_FLG; + do { + __asm__ __volatile__ ("eieio"); + } while (cp->cp_cpcr & CPM_CR_FLG); + } + + puts (" done\nStarting test... (Ctrl-C to Finish)\n"); + + /* + * Note: don't want serial output from here until the end of the + * test - the delays would probably stuff things up. + */ + + clear_ctrlc (); + runtime = get_timer (0); + + do { + nclosed = 0; + + for (c = FCC_START_LOOP; c <= FCC_END_LOOP; c++) { + volatile fcc_t *fcp = &immr->im_fcc[c]; + elbt_chan *ecp = &elbt_chans[c]; + int i; + + switch (ecp->state) { + + case Idle: + /* + * set the channel Running ... + */ + + /* 28.9 - (14): enable tx/rx in gfmr */ + fcp->fcc_gfmr |= FCC_GFMR_ENT | FCC_GFMR_ENR; + + ecp->state = Running; + break; + + case Running: + /* + * (while Running only) check for + * termination of the test + */ + + (void)ctrlc (); + + if (had_ctrlc ()) { + /* + * initiate a "graceful stop transmit" + * on the channel + */ + cp->cp_cpcr = mk_cr_cmd (ecp->page, \ + ecp->sblock, 0x0c, \ + CPM_CR_GRACEFUL_STOP_TX) | \ + CPM_CR_FLG; + do { + __asm__ __volatile__ ("eieio"); + } while (cp->cp_cpcr & CPM_CR_FLG); + + ecp->clstime = get_timer (0); + ecp->state = Closing; + } + /* fall through ... */ + + case Closing: + /* + * (while Running or Closing) poll the channel: + * - check for any non-READY tx buffers and + * make them ready + * - check for any non-EMPTY rx buffers and + * check that they were received correctly, + * adjust counters etc, then make empty + */ + + for (i = 0; i < ELBT_NTXBD; i++) { + cbd_t *bdp = &ecp->txbd[i]; + ushort sc = bdp->cbd_sc; + + if ((sc & BD_ENET_TX_READY) != 0) + continue; + + /* + * this frame has finished + * transmitting + */ + ecp->nsent++; + + if (sc & BD_ENET_TX_STATS) { + ulong n; + + /* + * we had an error on + * the transmission + */ + n = ecp->ntxerr++; + if (n < ELBT_MAXTXERR) + ecp->txerrs[n] = sc; + + if (sc & BD_ENET_TX_DEF) + ecp->txeacc.def++; + if (sc & BD_ENET_TX_HB) + ecp->txeacc.hb++; + if (sc & BD_ENET_TX_LC) + ecp->txeacc.lc++; + if (sc & BD_ENET_TX_RL) + ecp->txeacc.rl++; + if (sc & BD_ENET_TX_RCMASK) + ecp->txeacc.rc++; + if (sc & BD_ENET_TX_UN) + ecp->txeacc.un++; + if (sc & BD_ENET_TX_CSL) + ecp->txeacc.csl++; + + bdp->cbd_sc &= \ + ~BD_ENET_TX_STATS; + } + + if (ecp->state == Closing) + ecp->clstime = get_timer (0); + + /* make it ready again */ + bdp->cbd_sc |= BD_ENET_TX_READY; + } + + for (i = 0; i < ELBT_NRXBD; i++) { + cbd_t *bdp = &ecp->rxbd[i]; + ushort sc = bdp->cbd_sc, mask; + + if ((sc & BD_ENET_RX_EMPTY) != 0) + continue; + + /* we have a new frame in this buffer */ + ecp->nrcvd++; + + mask = BD_ENET_RX_LAST|BD_ENET_RX_FIRST; + if ((sc & mask) != mask) { + /* somethings wrong here ... */ + if (!(sc & BD_ENET_RX_LAST)) + ecp->rxeacc._l++; + if (!(sc & BD_ENET_RX_FIRST)) + ecp->rxeacc._f++; + } + + if (sc & BD_ENET_RX_ERRS) { + ulong n; + + /* + * we had some sort of error + * on the frame + */ + n = ecp->nrxerr++; + if (n < ELBT_MAXRXERR) + ecp->rxerrs[n] = sc; + + if (sc & BD_ENET_RX_MISS) + ecp->rxeacc.m++; + if (sc & BD_ENET_RX_BC) + ecp->rxeacc.bc++; + if (sc & BD_ENET_RX_MC) + ecp->rxeacc.mc++; + if (sc & BD_ENET_RX_LG) + ecp->rxeacc.lg++; + if (sc & BD_ENET_RX_NO) + ecp->rxeacc.no++; + if (sc & BD_ENET_RX_SH) + ecp->rxeacc.sh++; + if (sc & BD_ENET_RX_CR) + ecp->rxeacc.cr++; + if (sc & BD_ENET_RX_OV) + ecp->rxeacc.ov++; + if (sc & BD_ENET_RX_CL) + ecp->rxeacc.cl++; + + bdp->cbd_sc &= \ + ~BD_ENET_RX_ERRS; + } + else { + ushort datlen = bdp->cbd_datlen; + Ethernet_t *ehp; + ushort prot; + int ours, tb, n, nbytes; + + ehp = (Ethernet_t *) \ + &ecp->rxbufs[i][0]; + + ours = memcmp (ehp->et_src, \ + NetOurEther, 6); + + prot = swap16 (ehp->et_protlen); + tb = prot & 0x8000; + n = prot & 0x7fff; + + nbytes = ELBT_BUFSZ - \ + offsetof (Ethernet_t, \ + et_dsap) - \ + ELBT_CRCSZ; + + /* check the frame is correct */ + if (datlen != ELBT_BUFSZ) + ecp->rxeacc.badlen++; + else if (!ours) + ecp->rxeacc.badsrc++; + else if (!tb || n >= ELBT_NTXBD) + ecp->rxeacc.badtyp++; + else { + ulong patword = \ + patwords[n]; + uint nbb; + + nbb = badbits ( \ + &ehp->et_dsap, \ + nbytes, \ + patword); + + ecp->rxeacc.badbit += \ + nbb; + } + } + + if (ecp->state == Closing) + ecp->clstime = get_timer (0); + + /* make it empty again */ + bdp->cbd_sc |= BD_ENET_RX_EMPTY; + } + + if (ecp->state != Closing) + break; + + /* + * (while Closing) check to see if + * waited long enough + */ + + if (get_timer (ecp->clstime) >= ELBT_CLSWAIT) { + /* write GFMR: disable tx/rx */ + fcp->fcc_gfmr &= \ + ~(FCC_GFMR_ENT | FCC_GFMR_ENR); + ecp->state = Closed; + } + + break; + + case Closed: + nclosed++; + break; + } + } + + } while (nclosed < (FCC_END_LOOP - FCC_START_LOOP + 1)); + + runtime = get_timer (runtime); + if (runtime <= ELBT_CLSWAIT) { + printf ("Whoops! somehow elapsed time (%ld) is wrong (<= %d)\n", + runtime, ELBT_CLSWAIT); + return; + } + nmsec = runtime - ELBT_CLSWAIT; + + printf ("Test Finished in %ldms (plus %dms close wait period)!\n\n", + nmsec, ELBT_CLSWAIT); + + /* + * now print stats + */ + + for (c = FCC_START_LOOP; c <= FCC_END_LOOP; c++) { + elbt_chan *ecp = &elbt_chans[c]; + uint rxpps, txpps, nerr; + + rxpps = (ecp->nrcvd * 1000) / nmsec; + txpps = (ecp->nsent * 1000) / nmsec; + + printf ("Channel %d: %d rcvd (%d pps, %d rxerrs), " + "%d sent (%d pps, %d txerrs)\n\n", c, + ecp->nrcvd, rxpps, ecp->nrxerr, + ecp->nsent, txpps, ecp->ntxerr); + + if ((nerr = ecp->nrxerr) > 0) { + ulong i; + + printf ("\tFirst %d rx errs:", nerr); + for (i = 0; i < nerr; i++) + printf (" %04x", ecp->rxerrs[i]); + putc ('\n'); + } + + if ((nerr = ecp->ntxerr) > 0) { + ulong i; + + printf ("\tFirst %d tx errs:", nerr); + for (i = 0; i < nerr; i++) + printf (" %04x", ecp->txerrs[i]); + putc ('\n'); + } + } + + puts ("Receive Error Counts:\n"); + for (c = FCC_START_LOOP; c <= FCC_END_LOOP; c++) + bases[c] = (uchar *)&elbt_chans[c].rxeacc; + print_desc (rxeacc_descs, rxeacc_ndesc, bases, 3); + + puts ("\nTransmit Error Counts:\n"); + for (c = FCC_START_LOOP; c <= FCC_END_LOOP; c++) + bases[c] = (uchar *)&elbt_chans[c].txeacc; + print_desc (txeacc_descs, txeacc_ndesc, bases, 3); + + puts ("\nRMON(-like) Counters:\n"); + for (c = FCC_START_LOOP; c <= FCC_END_LOOP; c++) + bases[c] = (uchar *)&immr->im_dprambase[elbt_chans[c].proff]; + print_desc (epram_descs, epram_ndesc, bases, 3); +} + +#endif /* CONFIG_ETHER_LOOPBACK_TEST */ + +#endif diff --git a/arch/ppc/cpu/mpc8260/ether_scc.c b/arch/ppc/cpu/mpc8260/ether_scc.c new file mode 100644 index 0000000..432111d --- /dev/null +++ b/arch/ppc/cpu/mpc8260/ether_scc.c @@ -0,0 +1,387 @@ +/* + * MPC8260 SCC Ethernet + * + * Copyright (c) 2000 MontaVista Software, Inc. Dan Malek (dmalek@jlc.net) + * + * (C) Copyright 2000 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * (C) Copyright (c) 2001 + * Advent Networks, Inc. <http://www.adventnetworks.com> + * Jay Monkman <jtm@smoothsmoothie.com> + * + * Modified so that it plays nicely when more than one ETHERNET interface + * is in use a la ether_fcc.c. + * (C) Copyright 2008 + * DENX Software Engineerin GmbH + * Gary Jennejohn <garyj@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/cpm_8260.h> +#include <mpc8260.h> +#include <malloc.h> +#include <net.h> +#include <command.h> +#include <config.h> + +#ifndef CONFIG_NET_MULTI +#error "CONFIG_NET_MULTI must be defined." +#endif + +#if (CONFIG_ETHER_INDEX == 1) +# define PROFF_ENET PROFF_SCC1 +# define CPM_CR_ENET_PAGE CPM_CR_SCC1_PAGE +# define CPM_CR_ENET_SBLOCK CPM_CR_SCC1_SBLOCK +# define CMXSCR_MASK (CMXSCR_SC1 |\ + CMXSCR_RS1CS_MSK |\ + CMXSCR_TS1CS_MSK) + +#elif (CONFIG_ETHER_INDEX == 2) +# define PROFF_ENET PROFF_SCC2 +# define CPM_CR_ENET_PAGE CPM_CR_SCC2_PAGE +# define CPM_CR_ENET_SBLOCK CPM_CR_SCC2_SBLOCK +# define CMXSCR_MASK (CMXSCR_SC2 |\ + CMXSCR_RS2CS_MSK |\ + CMXSCR_TS2CS_MSK) + +#elif (CONFIG_ETHER_INDEX == 3) +# define PROFF_ENET PROFF_SCC3 +# define CPM_CR_ENET_PAGE CPM_CR_SCC3_PAGE +# define CPM_CR_ENET_SBLOCK CPM_CR_SCC3_SBLOCK +# define CMXSCR_MASK (CMXSCR_SC3 |\ + CMXSCR_RS3CS_MSK |\ + CMXSCR_TS3CS_MSK) +#elif (CONFIG_ETHER_INDEX == 4) +# define PROFF_ENET PROFF_SCC4 +# define CPM_CR_ENET_PAGE CPM_CR_SCC4_PAGE +# define CPM_CR_ENET_SBLOCK CPM_CR_SCC4_SBLOCK +# define CMXSCR_MASK (CMXSCR_SC4 |\ + CMXSCR_RS4CS_MSK |\ + CMXSCR_TS4CS_MSK) + +#endif + + +/* Ethernet Transmit and Receive Buffers */ +#define DBUF_LENGTH 1520 + +#define TX_BUF_CNT 2 + +#if !defined(CONFIG_SYS_SCC_TOUT_LOOP) + #define CONFIG_SYS_SCC_TOUT_LOOP 1000000 +#endif + +static char txbuf[TX_BUF_CNT][ DBUF_LENGTH ]; + +static uint rxIdx; /* index of the current RX buffer */ +static uint txIdx; /* index of the current TX buffer */ + +/* + * SCC Ethernet Tx and Rx buffer descriptors allocated at the + * immr->udata_bd address on Dual-Port RAM + * Provide for Double Buffering + */ + +typedef volatile struct CommonBufferDescriptor { + cbd_t rxbd[PKTBUFSRX]; /* Rx BD */ + cbd_t txbd[TX_BUF_CNT]; /* Tx BD */ +} RTXBD; + +static RTXBD *rtx; + + +static int sec_send(struct eth_device *dev, volatile void *packet, int length) +{ + int i; + int result = 0; + + if (length <= 0) { + printf("scc: bad packet size: %d\n", length); + goto out; + } + + for(i=0; rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY; i++) { + if (i >= CONFIG_SYS_SCC_TOUT_LOOP) { + puts ("scc: tx buffer not ready\n"); + goto out; + } + } + + rtx->txbd[txIdx].cbd_bufaddr = (uint)packet; + rtx->txbd[txIdx].cbd_datlen = length; + rtx->txbd[txIdx].cbd_sc |= (BD_ENET_TX_READY | BD_ENET_TX_LAST | + BD_ENET_TX_WRAP); + + for(i=0; rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY; i++) { + if (i >= CONFIG_SYS_SCC_TOUT_LOOP) { + puts ("scc: tx error\n"); + goto out; + } + } + + /* return only status bits */ + result = rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_STATS; + + out: + return result; +} + + +static int sec_rx(struct eth_device *dev) +{ + int length; + + for (;;) + { + if (rtx->rxbd[rxIdx].cbd_sc & BD_ENET_RX_EMPTY) { + length = -1; + break; /* nothing received - leave for() loop */ + } + + length = rtx->rxbd[rxIdx].cbd_datlen; + + if (rtx->rxbd[rxIdx].cbd_sc & 0x003f) + { + printf("err: %x\n", rtx->rxbd[rxIdx].cbd_sc); + } + else + { + /* Pass the packet up to the protocol layers. */ + NetReceive(NetRxPackets[rxIdx], length - 4); + } + + + /* Give the buffer back to the SCC. */ + rtx->rxbd[rxIdx].cbd_datlen = 0; + + /* wrap around buffer index when necessary */ + if ((rxIdx + 1) >= PKTBUFSRX) { + rtx->rxbd[PKTBUFSRX - 1].cbd_sc = (BD_ENET_RX_WRAP | + BD_ENET_RX_EMPTY); + rxIdx = 0; + } + else { + rtx->rxbd[rxIdx].cbd_sc = BD_ENET_RX_EMPTY; + rxIdx++; + } + } + return length; +} + +/************************************************************** + * + * SCC Ethernet Initialization Routine + * + *************************************************************/ + +static int sec_init(struct eth_device *dev, bd_t *bis) +{ + int i; + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + scc_enet_t *pram_ptr; + uint dpaddr; + uchar ea[6]; + + rxIdx = 0; + txIdx = 0; + + /* + * Assign static pointer to BD area. + * Avoid exhausting DPRAM, which would cause a panic. + */ + if (rtx == NULL) { + dpaddr = m8260_cpm_dpalloc(sizeof(RTXBD) + 2, 16); + rtx = (RTXBD *)&immr->im_dprambase[dpaddr]; + } + + /* 24.21 - (1-3): ioports have been set up already */ + + /* 24.21 - (4,5): connect SCC's tx and rx clocks, use NMSI for SCC */ + immr->im_cpmux.cmx_uar = 0; + immr->im_cpmux.cmx_scr = ( (immr->im_cpmux.cmx_scr & ~CMXSCR_MASK) | + CONFIG_SYS_CMXSCR_VALUE); + + + /* 24.21 (6) write RBASE and TBASE to parameter RAM */ + pram_ptr = (scc_enet_t *)&(immr->im_dprambase[PROFF_ENET]); + pram_ptr->sen_genscc.scc_rbase = (unsigned int)(&rtx->rxbd[0]); + pram_ptr->sen_genscc.scc_tbase = (unsigned int)(&rtx->txbd[0]); + + pram_ptr->sen_genscc.scc_rfcr = 0x18; /* Nrml Ops and Mot byte ordering */ + pram_ptr->sen_genscc.scc_tfcr = 0x18; /* Mot byte ordering, Nrml access */ + + pram_ptr->sen_genscc.scc_mrblr = DBUF_LENGTH; /* max. package len 1520 */ + + pram_ptr->sen_cpres = ~(0x0); /* Preset CRC */ + pram_ptr->sen_cmask = 0xdebb20e3; /* Constant Mask for CRC */ + + + /* 24.21 - (7): Write INIT RX AND TX PARAMETERS to CPCR */ + while(immr->im_cpm.cp_cpcr & CPM_CR_FLG); + immr->im_cpm.cp_cpcr = mk_cr_cmd(CPM_CR_ENET_PAGE, + CPM_CR_ENET_SBLOCK, + 0x0c, + CPM_CR_INIT_TRX) | CPM_CR_FLG; + + /* 24.21 - (8-18): Set up parameter RAM */ + pram_ptr->sen_crcec = 0x0; /* Error Counter CRC (unused) */ + pram_ptr->sen_alec = 0x0; /* Align Error Counter (unused) */ + pram_ptr->sen_disfc = 0x0; /* Discard Frame Counter (unused) */ + + pram_ptr->sen_pads = 0x8888; /* Short Frame PAD Characters */ + + pram_ptr->sen_retlim = 15; /* Retry Limit Threshold */ + + pram_ptr->sen_maxflr = 1518; /* MAX Frame Length Register */ + pram_ptr->sen_minflr = 64; /* MIN Frame Length Register */ + + pram_ptr->sen_maxd1 = DBUF_LENGTH; /* MAX DMA1 Length Register */ + pram_ptr->sen_maxd2 = DBUF_LENGTH; /* MAX DMA2 Length Register */ + + pram_ptr->sen_gaddr1 = 0x0; /* Group Address Filter 1 (unused) */ + pram_ptr->sen_gaddr2 = 0x0; /* Group Address Filter 2 (unused) */ + pram_ptr->sen_gaddr3 = 0x0; /* Group Address Filter 3 (unused) */ + pram_ptr->sen_gaddr4 = 0x0; /* Group Address Filter 4 (unused) */ + + eth_getenv_enetaddr("ethaddr", ea); + pram_ptr->sen_paddrh = (ea[5] << 8) + ea[4]; + pram_ptr->sen_paddrm = (ea[3] << 8) + ea[2]; + pram_ptr->sen_paddrl = (ea[1] << 8) + ea[0]; + + pram_ptr->sen_pper = 0x0; /* Persistence (unused) */ + + pram_ptr->sen_iaddr1 = 0x0; /* Individual Address Filter 1 (unused) */ + pram_ptr->sen_iaddr2 = 0x0; /* Individual Address Filter 2 (unused) */ + pram_ptr->sen_iaddr3 = 0x0; /* Individual Address Filter 3 (unused) */ + pram_ptr->sen_iaddr4 = 0x0; /* Individual Address Filter 4 (unused) */ + + pram_ptr->sen_taddrh = 0x0; /* Tmp Address (MSB) (unused) */ + pram_ptr->sen_taddrm = 0x0; /* Tmp Address (unused) */ + pram_ptr->sen_taddrl = 0x0; /* Tmp Address (LSB) (unused) */ + + /* 24.21 - (19): Initialize RxBD */ + for (i = 0; i < PKTBUFSRX; i++) + { + rtx->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY; + rtx->rxbd[i].cbd_datlen = 0; /* Reset */ + rtx->rxbd[i].cbd_bufaddr = (uint)NetRxPackets[i]; + } + + rtx->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP; + + /* 24.21 - (20): Initialize TxBD */ + for (i = 0; i < TX_BUF_CNT; i++) + { + rtx->txbd[i].cbd_sc = (BD_ENET_TX_PAD | + BD_ENET_TX_LAST | + BD_ENET_TX_TC); + rtx->txbd[i].cbd_datlen = 0; /* Reset */ + rtx->txbd[i].cbd_bufaddr = (uint)&txbuf[i][0]; + } + + rtx->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP; + + /* 24.21 - (21): Write 0xffff to SCCE */ + immr->im_scc[CONFIG_ETHER_INDEX-1].scc_scce = ~(0x0); + + /* 24.21 - (22): Write to SCCM to enable TXE, RXF, TXB events */ + immr->im_scc[CONFIG_ETHER_INDEX-1].scc_sccm = (SCCE_ENET_TXE | + SCCE_ENET_RXF | + SCCE_ENET_TXB); + + /* 24.21 - (23): we don't use ethernet interrupts */ + + /* 24.21 - (24): Clear GSMR_H to enable normal operations */ + immr->im_scc[CONFIG_ETHER_INDEX-1].scc_gsmrh = 0; + + /* 24.21 - (25): Clear GSMR_L to enable normal operations */ + immr->im_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl = (SCC_GSMRL_TCI | + SCC_GSMRL_TPL_48 | + SCC_GSMRL_TPP_10 | + SCC_GSMRL_MODE_ENET); + + /* 24.21 - (26): Initialize DSR */ + immr->im_scc[CONFIG_ETHER_INDEX-1].scc_dsr = 0xd555; + + /* 24.21 - (27): Initialize PSMR2 + * + * Settings: + * CRC = 32-Bit CCITT + * NIB = Begin searching for SFD 22 bits after RENA + * FDE = Full Duplex Enable + * BRO = Reject broadcast packets + * PROMISCOUS = Catch all packets regardless of dest. MAC adress + */ + immr->im_scc[CONFIG_ETHER_INDEX-1].scc_psmr = SCC_PSMR_ENCRC | + SCC_PSMR_NIB22 | +#if defined(CONFIG_SCC_ENET_FULL_DUPLEX) + SCC_PSMR_FDE | +#endif +#if defined(CONFIG_SCC_ENET_NO_BROADCAST) + SCC_PSMR_BRO | +#endif +#if defined(CONFIG_SCC_ENET_PROMISCOUS) + SCC_PSMR_PRO | +#endif + 0; + + /* 24.21 - (28): Write to GSMR_L to enable SCC */ + immr->im_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl |= (SCC_GSMRL_ENR | + SCC_GSMRL_ENT); + + return 0; +} + + +static void sec_halt(struct eth_device *dev) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + immr->im_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl &= ~(SCC_GSMRL_ENR | + SCC_GSMRL_ENT); +} + +#if 0 +static void sec_restart(void) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + immr->im_cpm.cp_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl |= (SCC_GSMRL_ENR | + SCC_GSMRL_ENT); +} +#endif + +int mpc82xx_scc_enet_initialize(bd_t *bis) +{ + struct eth_device *dev; + + dev = (struct eth_device *) malloc(sizeof *dev); + memset(dev, 0, sizeof *dev); + + sprintf(dev->name, "SCC ETHERNET"); + dev->init = sec_init; + dev->halt = sec_halt; + dev->send = sec_send; + dev->recv = sec_rx; + + eth_register(dev); + + return 1; +} diff --git a/arch/ppc/cpu/mpc8260/i2c.c b/arch/ppc/cpu/mpc8260/i2c.c new file mode 100644 index 0000000..d2bdcc2 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/i2c.c @@ -0,0 +1,785 @@ +/* + * (C) Copyright 2000 + * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it + * + * (C) Copyright 2000 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +#if defined(CONFIG_HARD_I2C) + +#include <asm/cpm_8260.h> +#include <i2c.h> + +/* define to enable debug messages */ +#undef DEBUG_I2C + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_I2C_MULTI_BUS) +static unsigned int i2c_bus_num __attribute__ ((section (".data"))) = 0; +#endif /* CONFIG_I2C_MULTI_BUS */ + +/* uSec to wait between polls of the i2c */ +#define DELAY_US 100 +/* uSec to wait for the CPM to start processing the buffer */ +#define START_DELAY_US 1000 + +/* + * tx/rx per-byte timeout: we delay DELAY_US uSec between polls so the + * timeout will be (tx_length + rx_length) * DELAY_US * TOUT_LOOP + */ +#define TOUT_LOOP 5 + +/*----------------------------------------------------------------------- + * Set default values + */ +#ifndef CONFIG_SYS_I2C_SPEED +#define CONFIG_SYS_I2C_SPEED 50000 +#endif + +/*----------------------------------------------------------------------- + */ + +typedef void (*i2c_ecb_t)(int, int, void *); /* error callback function */ + +/* This structure keeps track of the bd and buffer space usage. */ +typedef struct i2c_state { + int rx_idx; /* index to next free Rx BD */ + int tx_idx; /* index to next free Tx BD */ + void *rxbd; /* pointer to next free Rx BD */ + void *txbd; /* pointer to next free Tx BD */ + int tx_space; /* number of Tx bytes left */ + unsigned char *tx_buf; /* pointer to free Tx area */ + i2c_ecb_t err_cb; /* error callback function */ + void *cb_data; /* private data to be passed */ +} i2c_state_t; + +/* flags for i2c_send() and i2c_receive() */ +#define I2CF_ENABLE_SECONDARY 0x01 /* secondary_address is valid */ +#define I2CF_START_COND 0x02 /* tx: generate start condition */ +#define I2CF_STOP_COND 0x04 /* tx: generate stop condition */ + +/* return codes */ +#define I2CERR_NO_BUFFERS 1 /* no more BDs or buffer space */ +#define I2CERR_MSG_TOO_LONG 2 /* tried to send/receive to much data */ +#define I2CERR_TIMEOUT 3 /* timeout in i2c_doio() */ +#define I2CERR_QUEUE_EMPTY 4 /* i2c_doio called without send/receive */ +#define I2CERR_IO_ERROR 5 /* had an error during comms */ + +/* error callback flags */ +#define I2CECB_RX_ERR 0x10 /* this is a receive error */ +#define I2CECB_RX_OV 0x02 /* receive overrun error */ +#define I2CECB_RX_MASK 0x0f /* mask for error bits */ +#define I2CECB_TX_ERR 0x20 /* this is a transmit error */ +#define I2CECB_TX_CL 0x01 /* transmit collision error */ +#define I2CECB_TX_UN 0x02 /* transmit underflow error */ +#define I2CECB_TX_NAK 0x04 /* transmit no ack error */ +#define I2CECB_TX_MASK 0x0f /* mask for error bits */ +#define I2CECB_TIMEOUT 0x40 /* this is a timeout error */ + +#define ERROR_I2C_NONE 0 +#define ERROR_I2C_LENGTH 1 + +#define I2C_WRITE_BIT 0x00 +#define I2C_READ_BIT 0x01 + +#define I2C_RXTX_LEN 128 /* maximum tx/rx buffer length */ + + +#define NUM_RX_BDS 4 +#define NUM_TX_BDS 4 +#define MAX_TX_SPACE 256 + +typedef struct I2C_BD +{ + unsigned short status; + unsigned short length; + unsigned char *addr; +} I2C_BD; +#define BD_I2C_TX_START 0x0400 /* special status for i2c: Start condition */ + +#define BD_I2C_TX_CL 0x0001 /* collision error */ +#define BD_I2C_TX_UN 0x0002 /* underflow error */ +#define BD_I2C_TX_NAK 0x0004 /* no acknowledge error */ +#define BD_I2C_TX_ERR (BD_I2C_TX_NAK|BD_I2C_TX_UN|BD_I2C_TX_CL) + +#define BD_I2C_RX_ERR BD_SC_OV + +#ifdef DEBUG_I2C +#define PRINTD(x) printf x +#else +#define PRINTD(x) +#endif + +/* + * Returns the best value of I2BRG to meet desired clock speed of I2C with + * input parameters (clock speed, filter, and predivider value). + * It returns computer speed value and the difference between it and desired + * speed. + */ +static inline int +i2c_roundrate(int hz, int speed, int filter, int modval, + int *brgval, int *totspeed) +{ + int moddiv = 1 << (5-(modval & 3)), brgdiv, div; + + PRINTD(("\t[I2C] trying hz=%d, speed=%d, filter=%d, modval=%d\n", + hz, speed, filter, modval)); + + div = moddiv * speed; + brgdiv = (hz + div - 1) / div; + + PRINTD(("\t\tmoddiv=%d, brgdiv=%d\n", moddiv, brgdiv)); + + *brgval = ((brgdiv + 1) / 2) - 3 - (2*filter); + + if ((*brgval < 0) || (*brgval > 255)) { + PRINTD(("\t\trejected brgval=%d\n", *brgval)); + return -1; + } + + brgdiv = 2 * (*brgval + 3 + (2 * filter)); + div = moddiv * brgdiv ; + *totspeed = hz / div; + + PRINTD(("\t\taccepted brgval=%d, totspeed=%d\n", *brgval, *totspeed)); + + return 0; +} + +/* + * Sets the I2C clock predivider and divider to meet required clock speed. + */ +static int i2c_setrate(int hz, int speed) +{ + immap_t *immap = (immap_t *)CONFIG_SYS_IMMR ; + volatile i2c8260_t *i2c = (i2c8260_t *)&immap->im_i2c; + int brgval, + modval, /* 0-3 */ + bestspeed_diff = speed, + bestspeed_brgval=0, + bestspeed_modval=0, + bestspeed_filter=0, + totspeed, + filter = 0; /* Use this fixed value */ + + for (modval = 0; modval < 4; modval++) + { + if (i2c_roundrate (hz, speed, filter, modval, &brgval, &totspeed) == 0) + { + int diff = speed - totspeed ; + + if ((diff >= 0) && (diff < bestspeed_diff)) + { + bestspeed_diff = diff ; + bestspeed_modval = modval; + bestspeed_brgval = brgval; + bestspeed_filter = filter; + } + } + } + + PRINTD(("[I2C] Best is:\n")); + PRINTD(("[I2C] CPU=%dhz RATE=%d F=%d I2MOD=%08x I2BRG=%08x DIFF=%dhz\n", + hz, speed, + bestspeed_filter, bestspeed_modval, bestspeed_brgval, + bestspeed_diff)); + + i2c->i2c_i2mod |= ((bestspeed_modval & 3) << 1) | (bestspeed_filter << 3); + i2c->i2c_i2brg = bestspeed_brgval & 0xff; + + PRINTD(("[I2C] i2mod=%08x i2brg=%08x\n", i2c->i2c_i2mod, i2c->i2c_i2brg)); + + return 1 ; +} + +void i2c_init(int speed, int slaveadd) +{ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR ; + volatile cpm8260_t *cp = (cpm8260_t *)&immap->im_cpm; + volatile i2c8260_t *i2c = (i2c8260_t *)&immap->im_i2c; + volatile iic_t *iip; + ulong rbase, tbase; + volatile I2C_BD *rxbd, *txbd; + uint dpaddr; + +#ifdef CONFIG_SYS_I2C_INIT_BOARD + /* call board specific i2c bus reset routine before accessing the */ + /* environment, which might be in a chip on that bus. For details */ + /* about this problem see doc/I2C_Edge_Conditions. */ + i2c_init_board(); +#endif + + dpaddr = *((unsigned short*)(&immap->im_dprambase[PROFF_I2C_BASE])); + if (dpaddr == 0) { + /* need to allocate dual port ram */ + dpaddr = m8260_cpm_dpalloc(64 + + (NUM_RX_BDS * sizeof(I2C_BD)) + (NUM_TX_BDS * sizeof(I2C_BD)) + + MAX_TX_SPACE, 64); + *((unsigned short*)(&immap->im_dprambase[PROFF_I2C_BASE])) = dpaddr; + } + + /* + * initialise data in dual port ram: + * + * dpaddr -> parameter ram (64 bytes) + * rbase -> rx BD (NUM_RX_BDS * sizeof(I2C_BD) bytes) + * tbase -> tx BD (NUM_TX_BDS * sizeof(I2C_BD) bytes) + * tx buffer (MAX_TX_SPACE bytes) + */ + + iip = (iic_t *)&immap->im_dprambase[dpaddr]; + memset((void*)iip, 0, sizeof(iic_t)); + + rbase = dpaddr + 64; + tbase = rbase + NUM_RX_BDS * sizeof(I2C_BD); + + /* Disable interrupts */ + i2c->i2c_i2mod = 0x00; + i2c->i2c_i2cmr = 0x00; + i2c->i2c_i2cer = 0xff; + i2c->i2c_i2add = slaveadd; + + /* + * Set the I2C BRG Clock division factor from desired i2c rate + * and current CPU rate (we assume sccr dfbgr field is 0; + * divide BRGCLK by 1) + */ + PRINTD(("[I2C] Setting rate...\n")); + i2c_setrate (gd->brg_clk, CONFIG_SYS_I2C_SPEED) ; + + /* Set I2C controller in master mode */ + i2c->i2c_i2com = 0x01; + + /* Initialize Tx/Rx parameters */ + iip->iic_rbase = rbase; + iip->iic_tbase = tbase; + rxbd = (I2C_BD *)((unsigned char *)&immap->im_dprambase[iip->iic_rbase]); + txbd = (I2C_BD *)((unsigned char *)&immap->im_dprambase[iip->iic_tbase]); + + PRINTD(("[I2C] rbase = %04x\n", iip->iic_rbase)); + PRINTD(("[I2C] tbase = %04x\n", iip->iic_tbase)); + PRINTD(("[I2C] rxbd = %08x\n", (int)rxbd)); + PRINTD(("[I2C] txbd = %08x\n", (int)txbd)); + + /* Set big endian byte order */ + iip->iic_tfcr = 0x10; + iip->iic_rfcr = 0x10; + + /* Set maximum receive size. */ + iip->iic_mrblr = I2C_RXTX_LEN; + + cp->cp_cpcr = mk_cr_cmd(CPM_CR_I2C_PAGE, + CPM_CR_I2C_SBLOCK, + 0x00, + CPM_CR_INIT_TRX) | CPM_CR_FLG; + do { + __asm__ __volatile__ ("eieio"); + } while (cp->cp_cpcr & CPM_CR_FLG); + + /* Clear events and interrupts */ + i2c->i2c_i2cer = 0xff; + i2c->i2c_i2cmr = 0x00; +} + +static +void i2c_newio(i2c_state_t *state) +{ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR ; + volatile iic_t *iip; + uint dpaddr; + + PRINTD(("[I2C] i2c_newio\n")); + + dpaddr = *((unsigned short*)(&immap->im_dprambase[PROFF_I2C_BASE])); + iip = (iic_t *)&immap->im_dprambase[dpaddr]; + state->rx_idx = 0; + state->tx_idx = 0; + state->rxbd = (void*)&immap->im_dprambase[iip->iic_rbase]; + state->txbd = (void*)&immap->im_dprambase[iip->iic_tbase]; + state->tx_space = MAX_TX_SPACE; + state->tx_buf = (uchar*)state->txbd + NUM_TX_BDS * sizeof(I2C_BD); + state->err_cb = NULL; + state->cb_data = NULL; + + PRINTD(("[I2C] rxbd = %08x\n", (int)state->rxbd)); + PRINTD(("[I2C] txbd = %08x\n", (int)state->txbd)); + PRINTD(("[I2C] tx_buf = %08x\n", (int)state->tx_buf)); + + /* clear the buffer memory */ + memset((char *)state->tx_buf, 0, MAX_TX_SPACE); +} + +static +int i2c_send(i2c_state_t *state, + unsigned char address, + unsigned char secondary_address, + unsigned int flags, + unsigned short size, + unsigned char *dataout) +{ + volatile I2C_BD *txbd; + int i,j; + + PRINTD(("[I2C] i2c_send add=%02d sec=%02d flag=%02d size=%d\n", + address, secondary_address, flags, size)); + + /* trying to send message larger than BD */ + if (size > I2C_RXTX_LEN) + return I2CERR_MSG_TOO_LONG; + + /* no more free bds */ + if (state->tx_idx >= NUM_TX_BDS || state->tx_space < (2 + size)) + return I2CERR_NO_BUFFERS; + + txbd = (I2C_BD *)state->txbd; + txbd->addr = state->tx_buf; + + PRINTD(("[I2C] txbd = %08x\n", (int)txbd)); + + if (flags & I2CF_START_COND) + { + PRINTD(("[I2C] Formatting addresses...\n")); + if (flags & I2CF_ENABLE_SECONDARY) + { + txbd->length = size + 2; /* Length of message plus dest addresses */ + txbd->addr[0] = address << 1; + txbd->addr[1] = secondary_address; + i = 2; + } + else + { + txbd->length = size + 1; /* Length of message plus dest address */ + txbd->addr[0] = address << 1; /* Write destination address to BD */ + i = 1; + } + } + else + { + txbd->length = size; /* Length of message */ + i = 0; + } + + /* set up txbd */ + txbd->status = BD_SC_READY; + if (flags & I2CF_START_COND) + txbd->status |= BD_I2C_TX_START; + if (flags & I2CF_STOP_COND) + txbd->status |= BD_SC_LAST | BD_SC_WRAP; + + /* Copy data to send into buffer */ + PRINTD(("[I2C] copy data...\n")); + for(j = 0; j < size; i++, j++) + txbd->addr[i] = dataout[j]; + + PRINTD(("[I2C] txbd: length=0x%04x status=0x%04x addr[0]=0x%02x addr[1]=0x%02x\n", + txbd->length, + txbd->status, + txbd->addr[0], + txbd->addr[1])); + + /* advance state */ + state->tx_buf += txbd->length; + state->tx_space -= txbd->length; + state->tx_idx++; + state->txbd = (void*)(txbd + 1); + + return 0; +} + +static +int i2c_receive(i2c_state_t *state, + unsigned char address, + unsigned char secondary_address, + unsigned int flags, + unsigned short size_to_expect, + unsigned char *datain) +{ + volatile I2C_BD *rxbd, *txbd; + + PRINTD(("[I2C] i2c_receive %02d %02d %02d\n", address, secondary_address, flags)); + + /* Expected to receive too much */ + if (size_to_expect > I2C_RXTX_LEN) + return I2CERR_MSG_TOO_LONG; + + /* no more free bds */ + if (state->tx_idx >= NUM_TX_BDS || state->rx_idx >= NUM_RX_BDS + || state->tx_space < 2) + return I2CERR_NO_BUFFERS; + + rxbd = (I2C_BD *)state->rxbd; + txbd = (I2C_BD *)state->txbd; + + PRINTD(("[I2C] rxbd = %08x\n", (int)rxbd)); + PRINTD(("[I2C] txbd = %08x\n", (int)txbd)); + + txbd->addr = state->tx_buf; + + /* set up TXBD for destination address */ + if (flags & I2CF_ENABLE_SECONDARY) + { + txbd->length = 2; + txbd->addr[0] = address << 1; /* Write data */ + txbd->addr[1] = secondary_address; /* Internal address */ + txbd->status = BD_SC_READY; + } + else + { + txbd->length = 1 + size_to_expect; + txbd->addr[0] = (address << 1) | 0x01; + txbd->status = BD_SC_READY; + memset(&txbd->addr[1], 0, txbd->length); + } + + /* set up rxbd for reception */ + rxbd->status = BD_SC_EMPTY; + rxbd->length = size_to_expect; + rxbd->addr = datain; + + txbd->status |= BD_I2C_TX_START; + if (flags & I2CF_STOP_COND) + { + txbd->status |= BD_SC_LAST | BD_SC_WRAP; + rxbd->status |= BD_SC_WRAP; + } + + PRINTD(("[I2C] txbd: length=0x%04x status=0x%04x addr[0]=0x%02x addr[1]=0x%02x\n", + txbd->length, + txbd->status, + txbd->addr[0], + txbd->addr[1])); + PRINTD(("[I2C] rxbd: length=0x%04x status=0x%04x addr[0]=0x%02x addr[1]=0x%02x\n", + rxbd->length, + rxbd->status, + rxbd->addr[0], + rxbd->addr[1])); + + /* advance state */ + state->tx_buf += txbd->length; + state->tx_space -= txbd->length; + state->tx_idx++; + state->txbd = (void*)(txbd + 1); + state->rx_idx++; + state->rxbd = (void*)(rxbd + 1); + + return 0; +} + + +static +int i2c_doio(i2c_state_t *state) +{ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR ; + volatile iic_t *iip; + volatile i2c8260_t *i2c = (i2c8260_t *)&immap->im_i2c; + volatile I2C_BD *txbd, *rxbd; + int n, i, b, rxcnt = 0, rxtimeo = 0, txcnt = 0, txtimeo = 0, rc = 0; + uint dpaddr; + + PRINTD(("[I2C] i2c_doio\n")); + + if (state->tx_idx <= 0 && state->rx_idx <= 0) { + PRINTD(("[I2C] No I/O is queued\n")); + return I2CERR_QUEUE_EMPTY; + } + + dpaddr = *((unsigned short*)(&immap->im_dprambase[PROFF_I2C_BASE])); + iip = (iic_t *)&immap->im_dprambase[dpaddr]; + iip->iic_rbptr = iip->iic_rbase; + iip->iic_tbptr = iip->iic_tbase; + + /* Enable I2C */ + PRINTD(("[I2C] Enabling I2C...\n")); + i2c->i2c_i2mod |= 0x01; + + /* Begin transmission */ + i2c->i2c_i2com |= 0x80; + + /* Loop until transmit & receive completed */ + + if ((n = state->tx_idx) > 0) { + + txbd = ((I2C_BD*)state->txbd) - n; + for (i = 0; i < n; i++) { + txtimeo += TOUT_LOOP * txbd->length; + txbd++; + } + + txbd--; /* wait until last in list is done */ + + PRINTD(("[I2C] Transmitting...(txbd=0x%08lx)\n", (ulong)txbd)); + + udelay(START_DELAY_US); /* give it time to start */ + while((txbd->status & BD_SC_READY) && (++txcnt < txtimeo)) { + udelay(DELAY_US); + if (ctrlc()) + return (-1); + __asm__ __volatile__ ("eieio"); + } + } + + if (txcnt < txtimeo && (n = state->rx_idx) > 0) { + + rxbd = ((I2C_BD*)state->rxbd) - n; + for (i = 0; i < n; i++) { + rxtimeo += TOUT_LOOP * rxbd->length; + rxbd++; + } + + rxbd--; /* wait until last in list is done */ + + PRINTD(("[I2C] Receiving...(rxbd=0x%08lx)\n", (ulong)rxbd)); + + udelay(START_DELAY_US); /* give it time to start */ + while((rxbd->status & BD_SC_EMPTY) && (++rxcnt < rxtimeo)) { + udelay(DELAY_US); + if (ctrlc()) + return (-1); + __asm__ __volatile__ ("eieio"); + } + } + + /* Turn off I2C */ + i2c->i2c_i2mod &= ~0x01; + + if ((n = state->tx_idx) > 0) { + for (i = 0; i < n; i++) { + txbd = ((I2C_BD*)state->txbd) - (n - i); + if ((b = txbd->status & BD_I2C_TX_ERR) != 0) { + if (state->err_cb != NULL) + (*state->err_cb)(I2CECB_TX_ERR|b, i, + state->cb_data); + if (rc == 0) + rc = I2CERR_IO_ERROR; + } + } + } + + if ((n = state->rx_idx) > 0) { + for (i = 0; i < n; i++) { + rxbd = ((I2C_BD*)state->rxbd) - (n - i); + if ((b = rxbd->status & BD_I2C_RX_ERR) != 0) { + if (state->err_cb != NULL) + (*state->err_cb)(I2CECB_RX_ERR|b, i, + state->cb_data); + if (rc == 0) + rc = I2CERR_IO_ERROR; + } + } + } + + if ((txtimeo > 0 && txcnt >= txtimeo) || \ + (rxtimeo > 0 && rxcnt >= rxtimeo)) { + if (state->err_cb != NULL) + (*state->err_cb)(I2CECB_TIMEOUT, -1, state->cb_data); + if (rc == 0) + rc = I2CERR_TIMEOUT; + } + + return (rc); +} + +static void +i2c_probe_callback(int flags, int xnum, void *data) +{ + /* + * the only acceptable errors are a transmit NAK or a receive + * overrun - tx NAK means the device does not exist, rx OV + * means the device must have responded to the slave address + * even though the transfer failed + */ + if (flags == (I2CECB_TX_ERR|I2CECB_TX_NAK)) + *(int *)data |= 1; + if (flags == (I2CECB_RX_ERR|I2CECB_RX_OV)) + *(int *)data |= 2; +} + +int +i2c_probe(uchar chip) +{ + i2c_state_t state; + int rc, err_flag; + uchar buf[1]; + + i2c_newio(&state); + + state.err_cb = i2c_probe_callback; + state.cb_data = (void *) &err_flag; + err_flag = 0; + + rc = i2c_receive(&state, chip, 0, I2CF_START_COND|I2CF_STOP_COND, 1, buf); + + if (rc != 0) + return (rc); /* probe failed */ + + rc = i2c_doio(&state); + + if (rc == 0) + return (0); /* device exists - read succeeded */ + + if (rc == I2CERR_TIMEOUT) + return (-1); /* device does not exist - timeout */ + + if (rc != I2CERR_IO_ERROR || err_flag == 0) + return (rc); /* probe failed */ + + if (err_flag & 1) + return (-1); /* device does not exist - had transmit NAK */ + + return (0); /* device exists - had receive overrun */ +} + + +int +i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len) +{ + i2c_state_t state; + uchar xaddr[4]; + int rc; + + xaddr[0] = (addr >> 24) & 0xFF; + xaddr[1] = (addr >> 16) & 0xFF; + xaddr[2] = (addr >> 8) & 0xFF; + xaddr[3] = addr & 0xFF; + +#ifdef CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW + /* + * EEPROM chips that implement "address overflow" are ones + * like Catalyst 24WC04/08/16 which has 9/10/11 bits of address + * and the extra bits end up in the "chip address" bit slots. + * This makes a 24WC08 (1Kbyte) chip look like four 256 byte + * chips. + * + * Note that we consider the length of the address field to still + * be one byte because the extra address bits are hidden in the + * chip address. + */ + chip |= ((addr >> (alen * 8)) & CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW); +#endif + + i2c_newio(&state); + + rc = i2c_send(&state, chip, 0, I2CF_START_COND, alen, &xaddr[4-alen]); + if (rc != 0) { + printf("i2c_read: i2c_send failed (%d)\n", rc); + return 1; + } + + rc = i2c_receive(&state, chip, 0, I2CF_STOP_COND, len, buffer); + if (rc != 0) { + printf("i2c_read: i2c_receive failed (%d)\n", rc); + return 1; + } + + rc = i2c_doio(&state); + if (rc != 0) { + printf("i2c_read: i2c_doio failed (%d)\n", rc); + return 1; + } + return 0; +} + +int +i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len) +{ + i2c_state_t state; + uchar xaddr[4]; + int rc; + + xaddr[0] = (addr >> 24) & 0xFF; + xaddr[1] = (addr >> 16) & 0xFF; + xaddr[2] = (addr >> 8) & 0xFF; + xaddr[3] = addr & 0xFF; + +#ifdef CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW + /* + * EEPROM chips that implement "address overflow" are ones + * like Catalyst 24WC04/08/16 which has 9/10/11 bits of address + * and the extra bits end up in the "chip address" bit slots. + * This makes a 24WC08 (1Kbyte) chip look like four 256 byte + * chips. + * + * Note that we consider the length of the address field to still + * be one byte because the extra address bits are hidden in the + * chip address. + */ + chip |= ((addr >> (alen * 8)) & CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW); +#endif + + i2c_newio(&state); + + rc = i2c_send(&state, chip, 0, I2CF_START_COND, alen, &xaddr[4-alen]); + if (rc != 0) { + printf("i2c_write: first i2c_send failed (%d)\n", rc); + return 1; + } + + rc = i2c_send(&state, 0, 0, I2CF_STOP_COND, len, buffer); + if (rc != 0) { + printf("i2c_write: second i2c_send failed (%d)\n", rc); + return 1; + } + + rc = i2c_doio(&state); + if (rc != 0) { + printf("i2c_write: i2c_doio failed (%d)\n", rc); + return 1; + } + return 0; +} + +#if defined(CONFIG_I2C_MULTI_BUS) +/* + * Functions for multiple I2C bus handling + */ +unsigned int i2c_get_bus_num(void) +{ + return i2c_bus_num; +} + +int i2c_set_bus_num(unsigned int bus) +{ +#if defined(CONFIG_I2C_MUX) + if (bus < CONFIG_SYS_MAX_I2C_BUS) { + i2c_bus_num = bus; + } else { + int ret; + + ret = i2x_mux_select_mux(bus); + if (ret == 0) + i2c_bus_num = bus; + else + return ret; + } +#else + if (bus >= CONFIG_SYS_MAX_I2C_BUS) + return -1; + i2c_bus_num = bus; +#endif + return 0; +} + +#endif /* CONFIG_I2C_MULTI_BUS */ +#endif /* CONFIG_HARD_I2C */ diff --git a/arch/ppc/cpu/mpc8260/interrupts.c b/arch/ppc/cpu/mpc8260/interrupts.c new file mode 100644 index 0000000..a7700c4 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/interrupts.c @@ -0,0 +1,279 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Hacked for MPC8260 by Murray.Jensen@cmst.csiro.au, 22-Oct-00 + */ + +#include <common.h> +#include <command.h> +#include <mpc8260.h> +#include <mpc8260_irq.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +/****************************************************************************/ + +struct irq_action { + interrupt_handler_t *handler; + void *arg; + ulong count; +}; + +static struct irq_action irq_handlers[NR_IRQS]; + +static ulong ppc_cached_irq_mask[NR_MASK_WORDS]; + +/****************************************************************************/ +/* this section was ripped out of arch/ppc/kernel/ppc8260_pic.c in the */ +/* Linux/PPC 2.4.x source. There was no copyright notice in that file. */ + +/* The 8260 internal interrupt controller. It is usually + * the only interrupt controller. + * There are two 32-bit registers (high/low) for up to 64 + * possible interrupts. + * + * Now, the fun starts.....Interrupt Numbers DO NOT MAP + * in a simple arithmetic fashion to mask or pending registers. + * That is, interrupt 4 does not map to bit position 4. + * We create two tables, indexed by vector number, to indicate + * which register to use and which bit in the register to use. + */ +static u_char irq_to_siureg[] = { + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0 +}; + +static u_char irq_to_siubit[] = { + 31, 16, 17, 18, 19, 20, 21, 22, + 23, 24, 25, 26, 27, 28, 29, 30, + 29, 30, 16, 17, 18, 19, 20, 21, + 22, 23, 24, 25, 26, 27, 28, 31, + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, + 15, 14, 13, 12, 11, 10, 9, 8, + 7, 6, 5, 4, 3, 2, 1, 0 +}; + +static void m8260_mask_irq (unsigned int irq_nr) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + int bit, word; + volatile uint *simr; + + bit = irq_to_siubit[irq_nr]; + word = irq_to_siureg[irq_nr]; + + simr = &(immr->im_intctl.ic_simrh); + ppc_cached_irq_mask[word] &= ~(1 << (31 - bit)); + simr[word] = ppc_cached_irq_mask[word]; +} + +static void m8260_unmask_irq (unsigned int irq_nr) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + int bit, word; + volatile uint *simr; + + bit = irq_to_siubit[irq_nr]; + word = irq_to_siureg[irq_nr]; + + simr = &(immr->im_intctl.ic_simrh); + ppc_cached_irq_mask[word] |= (1 << (31 - bit)); + simr[word] = ppc_cached_irq_mask[word]; +} + +static void m8260_mask_and_ack (unsigned int irq_nr) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + int bit, word; + volatile uint *simr, *sipnr; + + bit = irq_to_siubit[irq_nr]; + word = irq_to_siureg[irq_nr]; + + simr = &(immr->im_intctl.ic_simrh); + sipnr = &(immr->im_intctl.ic_sipnrh); + ppc_cached_irq_mask[word] &= ~(1 << (31 - bit)); + simr[word] = ppc_cached_irq_mask[word]; + sipnr[word] = 1 << (31 - bit); +} + +static int m8260_get_irq (struct pt_regs *regs) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + int irq; + unsigned long bits; + + /* For MPC8260, read the SIVEC register and shift the bits down + * to get the irq number. */ + bits = immr->im_intctl.ic_sivec; + irq = bits >> 26; + return irq; +} + +/* end of code ripped out of arch/ppc/kernel/ppc8260_pic.c */ +/****************************************************************************/ + +int interrupt_init_cpu (unsigned *decrementer_count) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + + *decrementer_count = (gd->bus_clk / 4) / CONFIG_SYS_HZ; + + /* Initialize the default interrupt mapping priorities */ + immr->im_intctl.ic_sicr = 0; + immr->im_intctl.ic_siprr = 0x05309770; + immr->im_intctl.ic_scprrh = 0x05309770; + immr->im_intctl.ic_scprrl = 0x05309770; + + /* disable all interrupts and clear all pending bits */ + immr->im_intctl.ic_simrh = ppc_cached_irq_mask[0] = 0; + immr->im_intctl.ic_simrl = ppc_cached_irq_mask[1] = 0; + immr->im_intctl.ic_sipnrh = 0xffffffff; + immr->im_intctl.ic_sipnrl = 0xffffffff; + +#ifdef CONFIG_HYMOD + /* + * ensure all external interrupt sources default to trigger on + * high-to-low transition (i.e. edge triggered active low) + */ + immr->im_intctl.ic_siexr = -1; +#endif + + return (0); +} + +/****************************************************************************/ + +/* + * Handle external interrupts + */ +void external_interrupt (struct pt_regs *regs) +{ + int irq, unmask = 1; + + irq = m8260_get_irq (regs); + + m8260_mask_and_ack (irq); + + enable_interrupts (); + + if (irq_handlers[irq].handler != NULL) + (*irq_handlers[irq].handler) (irq_handlers[irq].arg); + else { + printf ("\nBogus External Interrupt IRQ %d\n", irq); + /* + * turn off the bogus interrupt, otherwise it + * might repeat forever + */ + unmask = 0; + } + + if (unmask) + m8260_unmask_irq (irq); +} + +/****************************************************************************/ + +/* + * Install and free an interrupt handler. + */ + +void +irq_install_handler (int irq, interrupt_handler_t * handler, void *arg) +{ + if (irq < 0 || irq >= NR_IRQS) { + printf ("irq_install_handler: bad irq number %d\n", irq); + return; + } + + if (irq_handlers[irq].handler != NULL) + printf ("irq_install_handler: 0x%08lx replacing 0x%08lx\n", + (ulong) handler, (ulong) irq_handlers[irq].handler); + + irq_handlers[irq].handler = handler; + irq_handlers[irq].arg = arg; + + m8260_unmask_irq (irq); +} + +void irq_free_handler (int irq) +{ + if (irq < 0 || irq >= NR_IRQS) { + printf ("irq_free_handler: bad irq number %d\n", irq); + return; + } + + m8260_mask_irq (irq); + + irq_handlers[irq].handler = NULL; + irq_handlers[irq].arg = NULL; +} + +/****************************************************************************/ + +void timer_interrupt_cpu (struct pt_regs *regs) +{ + /* nothing to do here */ + return; +} + +/****************************************************************************/ + +#if defined(CONFIG_CMD_IRQ) + +/* ripped this out of ppc4xx/interrupts.c */ + +/******************************************************************************* +* +* irqinfo - print information about PCI devices +* +*/ +void +do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[]) +{ + int irq, re_enable; + + re_enable = disable_interrupts (); + + puts ("\nInterrupt-Information:\n" + "Nr Routine Arg Count\n"); + + for (irq = 0; irq < 32; irq++) + if (irq_handlers[irq].handler != NULL) + printf ("%02d %08lx %08lx %ld\n", irq, + (ulong) irq_handlers[irq].handler, + (ulong) irq_handlers[irq].arg, + irq_handlers[irq].count); + + if (re_enable) + enable_interrupts (); +} + +#endif diff --git a/arch/ppc/cpu/mpc8260/kgdb.S b/arch/ppc/cpu/mpc8260/kgdb.S new file mode 100644 index 0000000..c5936c7 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/kgdb.S @@ -0,0 +1,72 @@ +/* + * Copyright (C) 2000 Murray Jensen <Murray.Jensen@cmst.csiro.au> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <command.h> +#include <mpc8260.h> +#include <version.h> + +#define CONFIG_8260 1 /* needed for Linux kernel header files */ +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#if defined(CONFIG_CMD_KGDB) + + /* + * cache flushing routines for kgdb + */ + + .globl kgdb_flush_cache_all +kgdb_flush_cache_all: + mfspr r3, HID0 + ori r3, r3, HID0_ICFI|HID0_DCI /* Invalidate All */ + SYNC + mtspr HID0, r3 + blr + + .globl kgdb_flush_cache_range +kgdb_flush_cache_range: + li r5,CONFIG_SYS_CACHELINE_SIZE-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,CONFIG_SYS_CACHELINE_SHIFT + beqlr + mtctr r4 + mr r6,r3 +1: dcbst 0,r3 + addi r3,r3,CONFIG_SYS_CACHELINE_SIZE + bdnz 1b + sync /* wait for dcbst's to get to ram */ + mtctr r4 +2: icbi 0,r6 + addi r6,r6,CONFIG_SYS_CACHELINE_SIZE + bdnz 2b + SYNC + blr + +#endif diff --git a/arch/ppc/cpu/mpc8260/pci.c b/arch/ppc/cpu/mpc8260/pci.c new file mode 100644 index 0000000..6a14ba4 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/pci.c @@ -0,0 +1,466 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (c) 2005 MontaVista Software, Inc. + * Vitaly Bordug <vbordug@ru.mvista.com> + * Added support for PCI bridge on MPC8272ADS + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +#ifdef CONFIG_PCI + +#include <pci.h> +#include <mpc8260.h> +#include <asm/m8260_pci.h> +#include <asm/io.h> +#ifdef CONFIG_OF_LIBFDT +#include <libfdt.h> +#include <fdt_support.h> +#endif + +#if defined CONFIG_MPC8266ADS || defined CONFIG_MPC8272 || defined CONFIG_PM826 +DECLARE_GLOBAL_DATA_PTR; +#endif + +/* + * Local->PCI map (from CPU) controlled by + * MPC826x master window + * + * 0x80000000 - 0xBFFFFFFF CPU2PCI space PCIBR0 + * 0xF4000000 - 0xF7FFFFFF CPU2PCI space PCIBR1 + * + * 0x80000000 - 0x9FFFFFFF 0x80000000 - 0x9FFFFFFF (Outbound ATU #1) + * PCI Mem with prefetch + * + * 0xA0000000 - 0xBFFFFFFF 0xA0000000 - 0xBFFFFFFF (Outbound ATU #2) + * PCI Mem w/o prefetch + * + * 0xF4000000 - 0xF7FFFFFF 0x00000000 - 0x03FFFFFF (Outbound ATU #3) + * 32-bit PCI IO + * + * PCI->Local map (from PCI) + * MPC826x slave window controlled by + * + * 0x00000000 - 0x1FFFFFFF 0x00000000 - 0x1FFFFFFF (Inbound ATU #1) + * MPC826x local memory + */ + +/* + * Slave window that allows PCI masters to access MPC826x local memory. + * This window is set up using the first set of Inbound ATU registers + */ + +#ifndef CONFIG_SYS_PCI_SLV_MEM_LOCAL +#define PCI_SLV_MEM_LOCAL CONFIG_SYS_SDRAM_BASE /* Local base */ +#else +#define PCI_SLV_MEM_LOCAL CONFIG_SYS_PCI_SLV_MEM_LOCAL +#endif + +#ifndef CONFIG_SYS_PCI_SLV_MEM_BUS +#define PCI_SLV_MEM_BUS 0x00000000 /* PCI base */ +#else +#define PCI_SLV_MEM_BUS CONFIG_SYS_PCI_SLV_MEM_BUS +#endif + +#ifndef CONFIG_SYS_PICMR0_MASK_ATTRIB +#define PICMR0_MASK_ATTRIB (PICMR_MASK_512MB | PICMR_ENABLE | \ + PICMR_PREFETCH_EN) +#else +#define PICMR0_MASK_ATTRIB CONFIG_SYS_PICMR0_MASK_ATTRIB +#endif + +/* + * These are the windows that allow the CPU to access PCI address space. + * All three PCI master windows, which allow the CPU to access PCI + * prefetch, non prefetch, and IO space (see below), must all fit within + * these windows. + */ + +/* PCIBR0 */ +#ifndef CONFIG_SYS_PCI_MSTR0_LOCAL +#define PCI_MSTR0_LOCAL 0x80000000 /* Local base */ +#else +#define PCI_MSTR0_LOCAL CONFIG_SYS_PCI_MSTR0_LOCAL +#endif + +#ifndef CONFIG_SYS_PCIMSK0_MASK +#define PCIMSK0_MASK PCIMSK_1GB /* Size of window */ +#else +#define PCIMSK0_MASK CONFIG_SYS_PCIMSK0_MASK +#endif + +/* PCIBR1 */ +#ifndef CONFIG_SYS_PCI_MSTR1_LOCAL +#define PCI_MSTR1_LOCAL 0xF4000000 /* Local base */ +#else +#define PCI_MSTR1_LOCAL CONFIG_SYS_PCI_MSTR1_LOCAL +#endif + +#ifndef CONFIG_SYS_PCIMSK1_MASK +#define PCIMSK1_MASK PCIMSK_64MB /* Size of window */ +#else +#define PCIMSK1_MASK CONFIG_SYS_PCIMSK1_MASK +#endif + +/* + * Master window that allows the CPU to access PCI Memory (prefetch). + * This window will be setup with the first set of Outbound ATU registers + * in the bridge. + */ + +#ifndef CONFIG_SYS_PCI_MSTR_MEM_LOCAL +#define PCI_MSTR_MEM_LOCAL 0x80000000 /* Local base */ +#else +#define PCI_MSTR_MEM_LOCAL CONFIG_SYS_PCI_MSTR_MEM_LOCAL +#endif + +#ifndef CONFIG_SYS_PCI_MSTR_MEM_BUS +#define PCI_MSTR_MEM_BUS 0x80000000 /* PCI base */ +#else +#define PCI_MSTR_MEM_BUS CONFIG_SYS_PCI_MSTR_MEM_BUS +#endif + +#ifndef CONFIG_SYS_CPU_PCI_MEM_START +#define CPU_PCI_MEM_START PCI_MSTR_MEM_LOCAL +#else +#define CPU_PCI_MEM_START CONFIG_SYS_CPU_PCI_MEM_START +#endif + +#ifndef CONFIG_SYS_PCI_MSTR_MEM_SIZE +#define PCI_MSTR_MEM_SIZE 0x10000000 /* 256MB */ +#else +#define PCI_MSTR_MEM_SIZE CONFIG_SYS_PCI_MSTR_MEM_SIZE +#endif + +#ifndef CONFIG_SYS_POCMR0_MASK_ATTRIB +#define POCMR0_MASK_ATTRIB (POCMR_MASK_256MB | POCMR_ENABLE | POCMR_PREFETCH_EN) +#else +#define POCMR0_MASK_ATTRIB CONFIG_SYS_POCMR0_MASK_ATTRIB +#endif + +/* + * Master window that allows the CPU to access PCI Memory (non-prefetch). + * This window will be setup with the second set of Outbound ATU registers + * in the bridge. + */ + +#ifndef CONFIG_SYS_PCI_MSTR_MEMIO_LOCAL +#define PCI_MSTR_MEMIO_LOCAL 0x90000000 /* Local base */ +#else +#define PCI_MSTR_MEMIO_LOCAL CONFIG_SYS_PCI_MSTR_MEMIO_LOCAL +#endif + +#ifndef CONFIG_SYS_PCI_MSTR_MEMIO_BUS +#define PCI_MSTR_MEMIO_BUS 0x90000000 /* PCI base */ +#else +#define PCI_MSTR_MEMIO_BUS CONFIG_SYS_PCI_MSTR_MEMIO_BUS +#endif + +#ifndef CONFIG_SYS_CPU_PCI_MEMIO_START +#define CPU_PCI_MEMIO_START PCI_MSTR_MEMIO_LOCAL +#else +#define CPU_PCI_MEMIO_START CONFIG_SYS_CPU_PCI_MEMIO_START +#endif + +#ifndef CONFIG_SYS_PCI_MSTR_MEMIO_SIZE +#define PCI_MSTR_MEMIO_SIZE 0x10000000 /* 256 MB */ +#else +#define PCI_MSTR_MEMIO_SIZE CONFIG_SYS_PCI_MSTR_MEMIO_SIZE +#endif + +#ifndef CONFIG_SYS_POCMR1_MASK_ATTRIB +#define POCMR1_MASK_ATTRIB (POCMR_MASK_512MB | POCMR_ENABLE) +#else +#define POCMR1_MASK_ATTRIB CONFIG_SYS_POCMR1_MASK_ATTRIB +#endif + +/* + * Master window that allows the CPU to access PCI IO space. + * This window will be setup with the third set of Outbound ATU registers + * in the bridge. + */ + +#ifndef CONFIG_SYS_PCI_MSTR_IO_LOCAL +#define PCI_MSTR_IO_LOCAL 0xA0000000 /* Local base */ +#else +#define PCI_MSTR_IO_LOCAL CONFIG_SYS_PCI_MSTR_IO_LOCAL +#endif + +#ifndef CONFIG_SYS_PCI_MSTR_IO_BUS +#define PCI_MSTR_IO_BUS 0xA0000000 /* PCI base */ +#else +#define PCI_MSTR_IO_BUS CONFIG_SYS_PCI_MSTR_IO_BUS +#endif + +#ifndef CONFIG_SYS_CPU_PCI_IO_START +#define CPU_PCI_IO_START PCI_MSTR_IO_LOCAL +#else +#define CPU_PCI_IO_START CONFIG_SYS_CPU_PCI_IO_START +#endif + +#ifndef CONFIG_SYS_PCI_MSTR_IO_SIZE +#define PCI_MSTR_IO_SIZE 0x10000000 /* 256MB */ +#else +#define PCI_MSTR_IO_SIZE CONFIG_SYS_PCI_MSTR_IO_SIZE +#endif + +#ifndef CONFIG_SYS_POCMR2_MASK_ATTRIB +#define POCMR2_MASK_ATTRIB (POCMR_MASK_256MB | POCMR_ENABLE | POCMR_PCI_IO) +#else +#define POCMR2_MASK_ATTRIB CONFIG_SYS_POCMR2_MASK_ATTRIB +#endif + +/* PCI bus configuration registers. + */ + +#define PCI_CLASS_BRIDGE_CTLR 0x06 + + +static inline void pci_outl (u32 addr, u32 data) +{ + *(volatile u32 *) addr = cpu_to_le32 (data); +} + +void pci_mpc8250_init (struct pci_controller *hose) +{ + u16 tempShort; + + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + pci_dev_t host_devno = PCI_BDF (0, 0, 0); + + pci_setup_indirect (hose, CONFIG_SYS_IMMR + PCI_CFG_ADDR_REG, + CONFIG_SYS_IMMR + PCI_CFG_DATA_REG); + + /* + * Setting required to enable local bus for PCI (SIUMCR [LBPC]). + */ +#ifdef CONFIG_MPC8266ADS + immap->im_siu_conf.sc_siumcr = + (immap->im_siu_conf.sc_siumcr & ~SIUMCR_LBPC11) + | SIUMCR_LBPC01; +#elif defined(CONFIG_ADSTYPE) && CONFIG_ADSTYPE == CONFIG_SYS_PQ2FADS +/* nothing to do for this board here */ +#elif defined CONFIG_MPC8272 + immap->im_siu_conf.sc_siumcr = (immap->im_siu_conf.sc_siumcr & + ~SIUMCR_BBD & + ~SIUMCR_ESE & + ~SIUMCR_PBSE & + ~SIUMCR_CDIS & + ~SIUMCR_DPPC11 & + ~SIUMCR_L2CPC11 & + ~SIUMCR_LBPC11 & + ~SIUMCR_APPC11 & + ~SIUMCR_CS10PC11 & + ~SIUMCR_BCTLC11 & + ~SIUMCR_MMR11) + | SIUMCR_DPPC11 + | SIUMCR_L2CPC01 + | SIUMCR_LBPC00 + | SIUMCR_APPC10 + | SIUMCR_CS10PC00 + | SIUMCR_BCTLC00 + | SIUMCR_MMR11; +#elif defined(CONFIG_TQM8272) +/* nothing to do for this Board here */ +#else + /* + * Setting required to enable IRQ1-IRQ7 (SIUMCR [DPPC]), + * and local bus for PCI (SIUMCR [LBPC]). + */ + immap->im_siu_conf.sc_siumcr = (immap->im_siu_conf.sc_siumcr & + ~SIUMCR_LBPC11 & + ~SIUMCR_CS10PC11 & + ~SIUMCR_LBPC11) | + SIUMCR_LBPC01 | + SIUMCR_CS10PC01 | + SIUMCR_APPC10; +#endif + + /* Make PCI lowest priority */ + /* Each 4 bits is a device bus request and the MS 4bits + is highest priority */ + /* Bus 4bit value + --- ---------- + CPM high 0b0000 + CPM middle 0b0001 + CPM low 0b0010 + PCI reguest 0b0011 + Reserved 0b0100 + Reserved 0b0101 + Internal Core 0b0110 + External Master 1 0b0111 + External Master 2 0b1000 + External Master 3 0b1001 + The rest are reserved */ + immap->im_siu_conf.sc_ppc_alrh = 0x61207893; + + /* Park bus on core while modifying PCI Bus accesses */ + immap->im_siu_conf.sc_ppc_acr = 0x6; + + /* + * Set up master windows that allow the CPU to access PCI space. These + * windows are set up using the two SIU PCIBR registers. + */ + immap->im_memctl.memc_pcimsk0 = PCIMSK0_MASK; + immap->im_memctl.memc_pcibr0 = PCI_MSTR0_LOCAL | PCIBR_ENABLE; + +#if defined CONFIG_MPC8266ADS || defined CONFIG_MPC8272 + immap->im_memctl.memc_pcimsk1 = PCIMSK1_MASK; + immap->im_memctl.memc_pcibr1 = PCI_MSTR1_LOCAL | PCIBR_ENABLE; +#endif + + /* Release PCI RST (by default the PCI RST signal is held low) */ + immap->im_pci.pci_gcr = cpu_to_le32 (PCIGCR_PCI_BUS_EN); + + /* give it some time */ + { +#if defined CONFIG_MPC8266ADS || defined CONFIG_MPC8272 + /* Give the PCI cards more time to initialize before query + This might be good for other boards also + */ + int i; + + for (i = 0; i < 1000; ++i) +#endif + udelay (1000); + } + + /* + * Set up master window that allows the CPU to access PCI Memory (prefetch) + * space. This window is set up using the first set of Outbound ATU registers. + */ + immap->im_pci.pci_potar0 = cpu_to_le32 (PCI_MSTR_MEM_BUS >> 12); /* PCI base */ + immap->im_pci.pci_pobar0 = cpu_to_le32 (PCI_MSTR_MEM_LOCAL >> 12); /* Local base */ + immap->im_pci.pci_pocmr0 = cpu_to_le32 (POCMR0_MASK_ATTRIB); /* Size & attribute */ + + /* + * Set up master window that allows the CPU to access PCI Memory (non-prefetch) + * space. This window is set up using the second set of Outbound ATU registers. + */ + immap->im_pci.pci_potar1 = cpu_to_le32 (PCI_MSTR_MEMIO_BUS >> 12); /* PCI base */ + immap->im_pci.pci_pobar1 = cpu_to_le32 (PCI_MSTR_MEMIO_LOCAL >> 12); /* Local base */ + immap->im_pci.pci_pocmr1 = cpu_to_le32 (POCMR1_MASK_ATTRIB); /* Size & attribute */ + + /* + * Set up master window that allows the CPU to access PCI IO space. This window + * is set up using the third set of Outbound ATU registers. + */ + immap->im_pci.pci_potar2 = cpu_to_le32 (PCI_MSTR_IO_BUS >> 12); /* PCI base */ + immap->im_pci.pci_pobar2 = cpu_to_le32 (PCI_MSTR_IO_LOCAL >> 12); /* Local base */ + immap->im_pci.pci_pocmr2 = cpu_to_le32 (POCMR2_MASK_ATTRIB); /* Size & attribute */ + + /* + * Set up slave window that allows PCI masters to access MPC826x local memory. + * This window is set up using the first set of Inbound ATU registers + */ + immap->im_pci.pci_pitar0 = cpu_to_le32 (PCI_SLV_MEM_LOCAL >> 12); /* PCI base */ + immap->im_pci.pci_pibar0 = cpu_to_le32 (PCI_SLV_MEM_BUS >> 12); /* Local base */ + immap->im_pci.pci_picmr0 = cpu_to_le32 (PICMR0_MASK_ATTRIB); /* Size & attribute */ + + /* See above for description - puts PCI request as highest priority */ +#ifdef CONFIG_MPC8272 + immap->im_siu_conf.sc_ppc_alrh = 0x01236745; +#else + immap->im_siu_conf.sc_ppc_alrh = 0x03124567; +#endif + + /* Park the bus on the PCI */ + immap->im_siu_conf.sc_ppc_acr = PPC_ACR_BUS_PARK_PCI; + + /* Host mode - specify the bridge as a host-PCI bridge */ + + pci_hose_write_config_byte (hose, host_devno, PCI_CLASS_CODE, + PCI_CLASS_BRIDGE_CTLR); + + /* Enable the host bridge to be a master on the PCI bus, and to act as a PCI memory target */ + pci_hose_read_config_word (hose, host_devno, PCI_COMMAND, &tempShort); + pci_hose_write_config_word (hose, host_devno, PCI_COMMAND, + tempShort | PCI_COMMAND_MASTER | + PCI_COMMAND_MEMORY); + + /* do some bridge init, should be done on all 8260 based bridges */ + pci_hose_write_config_byte (hose, host_devno, PCI_CACHE_LINE_SIZE, + 0x08); + pci_hose_write_config_byte (hose, host_devno, PCI_LATENCY_TIMER, + 0xF8); + + hose->first_busno = 0; + hose->last_busno = 0xff; + + /* System memory space */ +#if defined CONFIG_MPC8266ADS || defined CONFIG_MPC8272 || defined CONFIG_PM826 + pci_set_region (hose->regions + 0, + PCI_SLV_MEM_BUS, + PCI_SLV_MEM_LOCAL, + gd->ram_size, PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); +#else + pci_set_region (hose->regions + 0, + CONFIG_SYS_SDRAM_BASE, + CONFIG_SYS_SDRAM_BASE, + 0x4000000, PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); +#endif + + /* PCI memory space */ +#if defined CONFIG_MPC8266ADS || defined CONFIG_MPC8272 + pci_set_region (hose->regions + 1, + PCI_MSTR_MEMIO_BUS, + PCI_MSTR_MEMIO_LOCAL, + PCI_MSTR_MEMIO_SIZE, PCI_REGION_MEM); +#else + pci_set_region (hose->regions + 1, + PCI_MSTR_MEM_BUS, + PCI_MSTR_MEM_LOCAL, + PCI_MSTR_MEM_SIZE, PCI_REGION_MEM); +#endif + + /* PCI I/O space */ + pci_set_region (hose->regions + 2, + PCI_MSTR_IO_BUS, + PCI_MSTR_IO_LOCAL, PCI_MSTR_IO_SIZE, PCI_REGION_IO); + + hose->region_count = 3; + + pci_register_hose (hose); + /* Mask off master abort machine checks */ + immap->im_pci.pci_emr &= cpu_to_le32 (~PCI_ERROR_PCI_NO_RSP); + eieio (); + + hose->last_busno = pci_hose_scan (hose); + + + /* clear the error in the error status register */ + immap->im_pci.pci_esr = cpu_to_le32 (PCI_ERROR_PCI_NO_RSP); + + /* unmask master abort machine checks */ + immap->im_pci.pci_emr |= cpu_to_le32 (PCI_ERROR_PCI_NO_RSP); +} + +#if defined(CONFIG_OF_LIBFDT) +void ft_pci_setup(void *blob, bd_t *bd) +{ + do_fixup_by_prop_u32(blob, "device_type", "pci", 4, + "clock-frequency", gd->pci_clk, 1); +} +#endif + +#endif /* CONFIG_PCI */ diff --git a/arch/ppc/cpu/mpc8260/serial_scc.c b/arch/ppc/cpu/mpc8260/serial_scc.c new file mode 100644 index 0000000..4ab6a28 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/serial_scc.c @@ -0,0 +1,498 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Hacked for MPC8260 by Murray.Jensen@cmst.csiro.au, 19-Oct-00. + */ + +/* + * Minimal serial functions needed to use one of the SCC ports + * as serial console interface. + */ + +#include <common.h> +#include <mpc8260.h> +#include <asm/cpm_8260.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_CONS_ON_SCC) + +#if CONFIG_CONS_INDEX == 1 /* Console on SCC1 */ + +#define SCC_INDEX 0 +#define PROFF_SCC PROFF_SCC1 +#define CMXSCR_MASK (CMXSCR_GR1|CMXSCR_SC1|\ + CMXSCR_RS1CS_MSK|CMXSCR_TS1CS_MSK) +#define CMXSCR_VALUE (CMXSCR_RS1CS_BRG1|CMXSCR_TS1CS_BRG1) +#define CPM_CR_SCC_PAGE CPM_CR_SCC1_PAGE +#define CPM_CR_SCC_SBLOCK CPM_CR_SCC1_SBLOCK + +#elif CONFIG_CONS_INDEX == 2 /* Console on SCC2 */ + +#define SCC_INDEX 1 +#define PROFF_SCC PROFF_SCC2 +#define CMXSCR_MASK (CMXSCR_GR2|CMXSCR_SC2|\ + CMXSCR_RS2CS_MSK|CMXSCR_TS2CS_MSK) +#define CMXSCR_VALUE (CMXSCR_RS2CS_BRG2|CMXSCR_TS2CS_BRG2) +#define CPM_CR_SCC_PAGE CPM_CR_SCC2_PAGE +#define CPM_CR_SCC_SBLOCK CPM_CR_SCC2_SBLOCK + +#elif CONFIG_CONS_INDEX == 3 /* Console on SCC3 */ + +#define SCC_INDEX 2 +#define PROFF_SCC PROFF_SCC3 +#define CMXSCR_MASK (CMXSCR_GR3|CMXSCR_SC3|\ + CMXSCR_RS3CS_MSK|CMXSCR_TS3CS_MSK) +#define CMXSCR_VALUE (CMXSCR_RS3CS_BRG3|CMXSCR_TS3CS_BRG3) +#define CPM_CR_SCC_PAGE CPM_CR_SCC3_PAGE +#define CPM_CR_SCC_SBLOCK CPM_CR_SCC3_SBLOCK + +#elif CONFIG_CONS_INDEX == 4 /* Console on SCC4 */ + +#define SCC_INDEX 3 +#define PROFF_SCC PROFF_SCC4 +#define CMXSCR_MASK (CMXSCR_GR4|CMXSCR_SC4|\ + CMXSCR_RS4CS_MSK|CMXSCR_TS4CS_MSK) +#define CMXSCR_VALUE (CMXSCR_RS4CS_BRG4|CMXSCR_TS4CS_BRG4) +#define CPM_CR_SCC_PAGE CPM_CR_SCC4_PAGE +#define CPM_CR_SCC_SBLOCK CPM_CR_SCC4_SBLOCK + +#else + +#error "console not correctly defined" + +#endif + +int serial_init (void) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile scc_t *sp; + volatile scc_uart_t *up; + volatile cbd_t *tbdf, *rbdf; + volatile cpm8260_t *cp = &(im->im_cpm); + uint dpaddr; + + /* initialize pointers to SCC */ + + sp = (scc_t *) &(im->im_scc[SCC_INDEX]); + up = (scc_uart_t *)&im->im_dprambase[PROFF_SCC]; + + /* Disable transmitter/receiver. + */ + sp->scc_gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT); + + /* put the SCC channel into NMSI (non multiplexd serial interface) + * mode and wire the selected SCC Tx and Rx clocks to BRGx (15-15). + */ + im->im_cpmux.cmx_scr = (im->im_cpmux.cmx_scr&~CMXSCR_MASK)|CMXSCR_VALUE; + + /* Set up the baud rate generator. + */ + serial_setbrg (); + + /* Allocate space for two buffer descriptors in the DP ram. + * damm: allocating space after the two buffers for rx/tx data + */ + + dpaddr = m8260_cpm_dpalloc((2 * sizeof (cbd_t)) + 2, 16); + + /* Set the physical address of the host memory buffers in + * the buffer descriptors. + */ + rbdf = (cbd_t *)&im->im_dprambase[dpaddr]; + rbdf->cbd_bufaddr = (uint) (rbdf+2); + rbdf->cbd_sc = BD_SC_EMPTY | BD_SC_WRAP; + tbdf = rbdf + 1; + tbdf->cbd_bufaddr = ((uint) (rbdf+2)) + 1; + tbdf->cbd_sc = BD_SC_WRAP; + + /* Set up the uart parameters in the parameter ram. + */ + up->scc_genscc.scc_rbase = dpaddr; + up->scc_genscc.scc_tbase = dpaddr+sizeof(cbd_t); + up->scc_genscc.scc_rfcr = CPMFCR_EB; + up->scc_genscc.scc_tfcr = CPMFCR_EB; + up->scc_genscc.scc_mrblr = 1; + up->scc_maxidl = 0; + up->scc_brkcr = 1; + up->scc_parec = 0; + up->scc_frmec = 0; + up->scc_nosec = 0; + up->scc_brkec = 0; + up->scc_uaddr1 = 0; + up->scc_uaddr2 = 0; + up->scc_toseq = 0; + up->scc_char1 = up->scc_char2 = up->scc_char3 = up->scc_char4 = 0x8000; + up->scc_char5 = up->scc_char6 = up->scc_char7 = up->scc_char8 = 0x8000; + up->scc_rccm = 0xc0ff; + + /* Mask all interrupts and remove anything pending. + */ + sp->scc_sccm = 0; + sp->scc_scce = 0xffff; + + /* Set 8 bit FIFO, 16 bit oversampling and UART mode. + */ + sp->scc_gsmrh = SCC_GSMRH_RFW; /* 8 bit FIFO */ + sp->scc_gsmrl = \ + SCC_GSMRL_TDCR_16 | SCC_GSMRL_RDCR_16 | SCC_GSMRL_MODE_UART; + + /* Set CTS flow control, 1 stop bit, 8 bit character length, + * normal async UART mode, no parity + */ + sp->scc_psmr = SCU_PSMR_FLC | SCU_PSMR_CL; + + /* execute the "Init Rx and Tx params" CP command. + */ + + while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + + cp->cp_cpcr = mk_cr_cmd(CPM_CR_SCC_PAGE, CPM_CR_SCC_SBLOCK, + 0, CPM_CR_INIT_TRX) | CPM_CR_FLG; + + while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + + /* Enable transmitter/receiver. + */ + sp->scc_gsmrl |= SCC_GSMRL_ENR | SCC_GSMRL_ENT; + + return (0); +} + +void +serial_setbrg (void) +{ +#if defined(CONFIG_CONS_USE_EXTC) + m8260_cpm_extcbrg(SCC_INDEX, gd->baudrate, + CONFIG_CONS_EXTC_RATE, CONFIG_CONS_EXTC_PINSEL); +#else + m8260_cpm_setbrg(SCC_INDEX, gd->baudrate); +#endif +} + +void +serial_putc(const char c) +{ + volatile scc_uart_t *up; + volatile cbd_t *tbdf; + volatile immap_t *im; + + if (c == '\n') + serial_putc ('\r'); + + im = (immap_t *)CONFIG_SYS_IMMR; + up = (scc_uart_t *)&im->im_dprambase[PROFF_SCC]; + tbdf = (cbd_t *)&im->im_dprambase[up->scc_genscc.scc_tbase]; + + /* Wait for last character to go. + */ + while (tbdf->cbd_sc & BD_SC_READY) + ; + + /* Load the character into the transmit buffer. + */ + *(volatile char *)tbdf->cbd_bufaddr = c; + tbdf->cbd_datlen = 1; + tbdf->cbd_sc |= BD_SC_READY; +} + +void +serial_puts (const char *s) +{ + while (*s) { + serial_putc (*s++); + } +} + +int +serial_getc(void) +{ + volatile cbd_t *rbdf; + volatile scc_uart_t *up; + volatile immap_t *im; + unsigned char c; + + im = (immap_t *)CONFIG_SYS_IMMR; + up = (scc_uart_t *)&im->im_dprambase[PROFF_SCC]; + rbdf = (cbd_t *)&im->im_dprambase[up->scc_genscc.scc_rbase]; + + /* Wait for character to show up. + */ + while (rbdf->cbd_sc & BD_SC_EMPTY) + ; + + /* Grab the char and clear the buffer again. + */ + c = *(volatile unsigned char *)rbdf->cbd_bufaddr; + rbdf->cbd_sc |= BD_SC_EMPTY; + + return (c); +} + +int +serial_tstc() +{ + volatile cbd_t *rbdf; + volatile scc_uart_t *up; + volatile immap_t *im; + + im = (immap_t *)CONFIG_SYS_IMMR; + up = (scc_uart_t *)&im->im_dprambase[PROFF_SCC]; + rbdf = (cbd_t *)&im->im_dprambase[up->scc_genscc.scc_rbase]; + + return ((rbdf->cbd_sc & BD_SC_EMPTY) == 0); +} + +#endif /* CONFIG_CONS_ON_SCC */ + +#if defined(CONFIG_KGDB_ON_SCC) + +#if defined(CONFIG_CONS_ON_SCC) && CONFIG_KGDB_INDEX == CONFIG_CONS_INDEX +#error Whoops! serial console and kgdb are on the same scc serial port +#endif + +#if CONFIG_KGDB_INDEX == 1 /* KGDB Port on SCC1 */ + +#define KGDB_SCC_INDEX 0 +#define KGDB_PROFF_SCC PROFF_SCC1 +#define KGDB_CMXSCR_MASK (CMXSCR_GR1|CMXSCR_SC1|\ + CMXSCR_RS1CS_MSK|CMXSCR_TS1CS_MSK) +#define KGDB_CMXSCR_VALUE (CMXSCR_RS1CS_BRG1|CMXSCR_TS1CS_BRG1) +#define KGDB_CPM_CR_SCC_PAGE CPM_CR_SCC1_PAGE +#define KGDB_CPM_CR_SCC_SBLOCK CPM_CR_SCC1_SBLOCK + +#elif CONFIG_KGDB_INDEX == 2 /* KGDB Port on SCC2 */ + +#define KGDB_SCC_INDEX 1 +#define KGDB_PROFF_SCC PROFF_SCC2 +#define KGDB_CMXSCR_MASK (CMXSCR_GR2|CMXSCR_SC2|\ + CMXSCR_RS2CS_MSK|CMXSCR_TS2CS_MSK) +#define KGDB_CMXSCR_VALUE (CMXSCR_RS2CS_BRG2|CMXSCR_TS2CS_BRG2) +#define KGDB_CPM_CR_SCC_PAGE CPM_CR_SCC2_PAGE +#define KGDB_CPM_CR_SCC_SBLOCK CPM_CR_SCC2_SBLOCK + +#elif CONFIG_KGDB_INDEX == 3 /* KGDB Port on SCC3 */ + +#define KGDB_SCC_INDEX 2 +#define KGDB_PROFF_SCC PROFF_SCC3 +#define KGDB_CMXSCR_MASK (CMXSCR_GR3|CMXSCR_SC3|\ + CMXSCR_RS3CS_MSK|CMXSCR_TS3CS_MSK) +#define KGDB_CMXSCR_VALUE (CMXSCR_RS3CS_BRG3|CMXSCR_TS3CS_BRG3) +#define KGDB_CPM_CR_SCC_PAGE CPM_CR_SCC3_PAGE +#define KGDB_CPM_CR_SCC_SBLOCK CPM_CR_SCC3_SBLOCK + +#elif CONFIG_KGDB_INDEX == 4 /* KGDB Port on SCC4 */ + +#define KGDB_SCC_INDEX 3 +#define KGDB_PROFF_SCC PROFF_SCC4 +#define KGDB_CMXSCR_MASK (CMXSCR_GR4|CMXSCR_SC4|\ + CMXSCR_RS4CS_MSK|CMXSCR_TS4CS_MSK) +#define KGDB_CMXSCR_VALUE (CMXSCR_RS4CS_BRG4|CMXSCR_TS4CS_BRG4) +#define KGDB_CPM_CR_SCC_PAGE CPM_CR_SCC4_PAGE +#define KGDB_CPM_CR_SCC_SBLOCK CPM_CR_SCC4_SBLOCK + +#else + +#error "kgdb serial port not correctly defined" + +#endif + +void +kgdb_serial_init (void) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile scc_t *sp; + volatile scc_uart_t *up; + volatile cbd_t *tbdf, *rbdf; + volatile cpm8260_t *cp = &(im->im_cpm); + uint dpaddr, speed = CONFIG_KGDB_BAUDRATE; + char *s, *e; + + if ((s = getenv("kgdbrate")) != NULL && *s != '\0') { + ulong rate = simple_strtoul(s, &e, 10); + if (e > s && *e == '\0') + speed = rate; + } + + /* initialize pointers to SCC */ + + sp = (scc_t *) &(im->im_scc[KGDB_SCC_INDEX]); + up = (scc_uart_t *)&im->im_dprambase[KGDB_PROFF_SCC]; + + /* Disable transmitter/receiver. + */ + sp->scc_gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT); + + /* put the SCC channel into NMSI (non multiplexd serial interface) + * mode and wire the selected SCC Tx and Rx clocks to BRGx (15-15). + */ + im->im_cpmux.cmx_scr = \ + (im->im_cpmux.cmx_scr & ~KGDB_CMXSCR_MASK) | KGDB_CMXSCR_VALUE; + + /* Set up the baud rate generator. + */ +#if defined(CONFIG_KGDB_USE_EXTC) + m8260_cpm_extcbrg(KGDB_SCC_INDEX, speed, + CONFIG_KGDB_EXTC_RATE, CONFIG_KGDB_EXTC_PINSEL); +#else + m8260_cpm_setbrg(KGDB_SCC_INDEX, speed); +#endif + + /* Allocate space for two buffer descriptors in the DP ram. + * damm: allocating space after the two buffers for rx/tx data + */ + + dpaddr = m8260_cpm_dpalloc((2 * sizeof (cbd_t)) + 2, 16); + + /* Set the physical address of the host memory buffers in + * the buffer descriptors. + */ + rbdf = (cbd_t *)&im->im_dprambase[dpaddr]; + rbdf->cbd_bufaddr = (uint) (rbdf+2); + rbdf->cbd_sc = BD_SC_EMPTY | BD_SC_WRAP; + tbdf = rbdf + 1; + tbdf->cbd_bufaddr = ((uint) (rbdf+2)) + 1; + tbdf->cbd_sc = BD_SC_WRAP; + + /* Set up the uart parameters in the parameter ram. + */ + up->scc_genscc.scc_rbase = dpaddr; + up->scc_genscc.scc_tbase = dpaddr+sizeof(cbd_t); + up->scc_genscc.scc_rfcr = CPMFCR_EB; + up->scc_genscc.scc_tfcr = CPMFCR_EB; + up->scc_genscc.scc_mrblr = 1; + up->scc_maxidl = 0; + up->scc_brkcr = 1; + up->scc_parec = 0; + up->scc_frmec = 0; + up->scc_nosec = 0; + up->scc_brkec = 0; + up->scc_uaddr1 = 0; + up->scc_uaddr2 = 0; + up->scc_toseq = 0; + up->scc_char1 = up->scc_char2 = up->scc_char3 = up->scc_char4 = 0x8000; + up->scc_char5 = up->scc_char6 = up->scc_char7 = up->scc_char8 = 0x8000; + up->scc_rccm = 0xc0ff; + + /* Mask all interrupts and remove anything pending. + */ + sp->scc_sccm = 0; + sp->scc_scce = 0xffff; + + /* Set 8 bit FIFO, 16 bit oversampling and UART mode. + */ + sp->scc_gsmrh = SCC_GSMRH_RFW; /* 8 bit FIFO */ + sp->scc_gsmrl = \ + SCC_GSMRL_TDCR_16 | SCC_GSMRL_RDCR_16 | SCC_GSMRL_MODE_UART; + + /* Set CTS flow control, 1 stop bit, 8 bit character length, + * normal async UART mode, no parity + */ + sp->scc_psmr = SCU_PSMR_FLC | SCU_PSMR_CL; + + /* execute the "Init Rx and Tx params" CP command. + */ + + while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + + cp->cp_cpcr = mk_cr_cmd(KGDB_CPM_CR_SCC_PAGE, KGDB_CPM_CR_SCC_SBLOCK, + 0, CPM_CR_INIT_TRX) | CPM_CR_FLG; + + while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + + /* Enable transmitter/receiver. + */ + sp->scc_gsmrl |= SCC_GSMRL_ENR | SCC_GSMRL_ENT; + + printf("SCC%d at %dbps ", CONFIG_KGDB_INDEX, speed); +} + +void +putDebugChar(const char c) +{ + volatile scc_uart_t *up; + volatile cbd_t *tbdf; + volatile immap_t *im; + + if (c == '\n') + putDebugChar ('\r'); + + im = (immap_t *)CONFIG_SYS_IMMR; + up = (scc_uart_t *)&im->im_dprambase[KGDB_PROFF_SCC]; + tbdf = (cbd_t *)&im->im_dprambase[up->scc_genscc.scc_tbase]; + + /* Wait for last character to go. + */ + while (tbdf->cbd_sc & BD_SC_READY) + ; + + /* Load the character into the transmit buffer. + */ + *(volatile char *)tbdf->cbd_bufaddr = c; + tbdf->cbd_datlen = 1; + tbdf->cbd_sc |= BD_SC_READY; +} + +void +putDebugStr (const char *s) +{ + while (*s) { + putDebugChar (*s++); + } +} + +int +getDebugChar(void) +{ + volatile cbd_t *rbdf; + volatile scc_uart_t *up; + volatile immap_t *im; + unsigned char c; + + im = (immap_t *)CONFIG_SYS_IMMR; + up = (scc_uart_t *)&im->im_dprambase[KGDB_PROFF_SCC]; + rbdf = (cbd_t *)&im->im_dprambase[up->scc_genscc.scc_rbase]; + + /* Wait for character to show up. + */ + while (rbdf->cbd_sc & BD_SC_EMPTY) + ; + + /* Grab the char and clear the buffer again. + */ + c = *(volatile unsigned char *)rbdf->cbd_bufaddr; + rbdf->cbd_sc |= BD_SC_EMPTY; + + return (c); +} + +void +kgdb_interruptible(int yes) +{ + return; +} + +#endif /* CONFIG_KGDB_ON_SCC */ diff --git a/arch/ppc/cpu/mpc8260/serial_smc.c b/arch/ppc/cpu/mpc8260/serial_smc.c new file mode 100644 index 0000000..fbb3fb0 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/serial_smc.c @@ -0,0 +1,467 @@ +/* + * (C) Copyright 2000, 2001, 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Hacked for MPC8260 by Murray.Jensen@cmst.csiro.au, 19-Oct-00, with + * changes based on the file arch/ppc/mbxboot/m8260_tty.c from the + * Linux/PPC sources (m8260_tty.c had no copyright info in it). + */ + +/* + * Minimal serial functions needed to use one of the SMC ports + * as serial console interface. + */ + +#include <common.h> +#include <mpc8260.h> +#include <asm/cpm_8260.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_CONS_ON_SMC) + +#if CONFIG_CONS_INDEX == 1 /* Console on SMC1 */ + +#define SMC_INDEX 0 +#define PROFF_SMC_BASE PROFF_SMC1_BASE +#define PROFF_SMC PROFF_SMC1 +#define CPM_CR_SMC_PAGE CPM_CR_SMC1_PAGE +#define CPM_CR_SMC_SBLOCK CPM_CR_SMC1_SBLOCK +#define CMXSMR_MASK (CMXSMR_SMC1|CMXSMR_SMC1CS_MSK) +#define CMXSMR_VALUE CMXSMR_SMC1CS_BRG7 + +#elif CONFIG_CONS_INDEX == 2 /* Console on SMC2 */ + +#define SMC_INDEX 1 +#define PROFF_SMC_BASE PROFF_SMC2_BASE +#define PROFF_SMC PROFF_SMC2 +#define CPM_CR_SMC_PAGE CPM_CR_SMC2_PAGE +#define CPM_CR_SMC_SBLOCK CPM_CR_SMC2_SBLOCK +#define CMXSMR_MASK (CMXSMR_SMC2|CMXSMR_SMC2CS_MSK) +#define CMXSMR_VALUE CMXSMR_SMC2CS_BRG8 + +#else + +#error "console not correctly defined" + +#endif + +#if !defined(CONFIG_SYS_SMC_RXBUFLEN) +#define CONFIG_SYS_SMC_RXBUFLEN 1 +#define CONFIG_SYS_MAXIDLE 0 +#else +#if !defined(CONFIG_SYS_MAXIDLE) +#error "you must define CONFIG_SYS_MAXIDLE" +#endif +#endif + +typedef volatile struct serialbuffer { + cbd_t rxbd; /* Rx BD */ + cbd_t txbd; /* Tx BD */ + uint rxindex; /* index for next character to read */ + volatile uchar rxbuf[CONFIG_SYS_SMC_RXBUFLEN];/* rx buffers */ + volatile uchar txbuf; /* tx buffers */ +} serialbuffer_t; + +/* map rs_table index to baud rate generator index */ +static unsigned char brg_map[] = { + 6, /* BRG7 for SMC1 */ + 7, /* BRG8 for SMC2 */ + 0, /* BRG1 for SCC1 */ + 1, /* BRG1 for SCC2 */ + 2, /* BRG1 for SCC3 */ + 3, /* BRG1 for SCC4 */ +}; + +int serial_init (void) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile smc_t *sp; + volatile smc_uart_t *up; + volatile cpm8260_t *cp = &(im->im_cpm); + uint dpaddr; + volatile serialbuffer_t *rtx; + + /* initialize pointers to SMC */ + + sp = (smc_t *) &(im->im_smc[SMC_INDEX]); + *(ushort *)(&im->im_dprambase[PROFF_SMC_BASE]) = PROFF_SMC; + up = (smc_uart_t *)&im->im_dprambase[PROFF_SMC]; + + /* Disable transmitter/receiver. */ + sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN); + + /* NOTE: I/O port pins are set up via the iop_conf_tab[] table */ + + /* Allocate space for two buffer descriptors in the DP ram. + * damm: allocating space after the two buffers for rx/tx data + */ + + /* allocate size of struct serialbuffer with bd rx/tx, + * buffer rx/tx and rx index + */ + dpaddr = m8260_cpm_dpalloc((sizeof(serialbuffer_t)), 16); + + rtx = (serialbuffer_t *)&im->im_dprambase[dpaddr]; + + /* Set the physical address of the host memory buffers in + * the buffer descriptors. + */ + rtx->rxbd.cbd_bufaddr = (uint) &rtx->rxbuf; + rtx->rxbd.cbd_sc = 0; + + rtx->txbd.cbd_bufaddr = (uint) &rtx->txbuf; + rtx->txbd.cbd_sc = 0; + + /* Set up the uart parameters in the parameter ram. */ + up->smc_rbase = dpaddr; + up->smc_tbase = dpaddr+sizeof(cbd_t); + up->smc_rfcr = CPMFCR_EB; + up->smc_tfcr = CPMFCR_EB; + up->smc_brklen = 0; + up->smc_brkec = 0; + up->smc_brkcr = 0; + + /* Set UART mode, 8 bit, no parity, one stop. + * Enable receive and transmit. + */ + sp->smc_smcmr = smcr_mk_clen(9) | SMCMR_SM_UART; + + /* Mask all interrupts and remove anything pending. */ + sp->smc_smcm = 0; + sp->smc_smce = 0xff; + + /* put the SMC channel into NMSI (non multiplexd serial interface) + * mode and wire either BRG7 to SMC1 or BRG8 to SMC2 (15-17). + */ + im->im_cpmux.cmx_smr = (im->im_cpmux.cmx_smr&~CMXSMR_MASK)|CMXSMR_VALUE; + + /* Set up the baud rate generator. */ + serial_setbrg (); + + /* Make the first buffer the only buffer. */ + rtx->txbd.cbd_sc |= BD_SC_WRAP; + rtx->rxbd.cbd_sc |= BD_SC_EMPTY | BD_SC_WRAP; + + /* single/multi character receive. */ + up->smc_mrblr = CONFIG_SYS_SMC_RXBUFLEN; + up->smc_maxidl = CONFIG_SYS_MAXIDLE; + rtx->rxindex = 0; + + /* Initialize Tx/Rx parameters. */ + + while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + + cp->cp_cpcr = mk_cr_cmd(CPM_CR_SMC_PAGE, CPM_CR_SMC_SBLOCK, + 0, CPM_CR_INIT_TRX) | CPM_CR_FLG; + + while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + + /* Enable transmitter/receiver. */ + sp->smc_smcmr |= SMCMR_REN | SMCMR_TEN; + + return (0); +} + +void +serial_setbrg (void) +{ +#if defined(CONFIG_CONS_USE_EXTC) + m8260_cpm_extcbrg(brg_map[SMC_INDEX], gd->baudrate, + CONFIG_CONS_EXTC_RATE, CONFIG_CONS_EXTC_PINSEL); +#else + m8260_cpm_setbrg(brg_map[SMC_INDEX], gd->baudrate); +#endif +} + +void +serial_putc(const char c) +{ + volatile smc_uart_t *up; + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile serialbuffer_t *rtx; + + if (c == '\n') + serial_putc ('\r'); + + up = (smc_uart_t *)&(im->im_dprambase[PROFF_SMC]); + + rtx = (serialbuffer_t *)&im->im_dprambase[up->smc_rbase]; + + /* Wait for last character to go. */ + while (rtx->txbd.cbd_sc & BD_SC_READY & BD_SC_READY) + ; + rtx->txbuf = c; + rtx->txbd.cbd_datlen = 1; + rtx->txbd.cbd_sc |= BD_SC_READY; +} + +void +serial_puts (const char *s) +{ + while (*s) { + serial_putc (*s++); + } +} + +int +serial_getc(void) +{ + volatile smc_uart_t *up; + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile serialbuffer_t *rtx; + unsigned char c; + + up = (smc_uart_t *)&(im->im_dprambase[PROFF_SMC]); + + rtx = (serialbuffer_t *)&im->im_dprambase[up->smc_rbase]; + + /* Wait for character to show up. */ + while (rtx->rxbd.cbd_sc & BD_SC_EMPTY) + ; + + /* the characters are read one by one, + * use the rxindex to know the next char to deliver + */ + c = *(unsigned char *) (rtx->rxbd.cbd_bufaddr + rtx->rxindex); + rtx->rxindex++; + + /* check if all char are readout, then make prepare for next receive */ + if (rtx->rxindex >= rtx->rxbd.cbd_datlen) { + rtx->rxindex = 0; + rtx->rxbd.cbd_sc |= BD_SC_EMPTY; + } + return(c); +} + +int +serial_tstc() +{ + volatile smc_uart_t *up; + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile serialbuffer_t *rtx; + + up = (smc_uart_t *)&(im->im_dprambase[PROFF_SMC]); + rtx = (serialbuffer_t *)&im->im_dprambase[up->smc_rbase]; + + return !(rtx->rxbd.cbd_sc & BD_SC_EMPTY); +} + +#endif /* CONFIG_CONS_ON_SMC */ + +#if defined(CONFIG_KGDB_ON_SMC) + +#if defined(CONFIG_CONS_ON_SMC) && CONFIG_KGDB_INDEX == CONFIG_CONS_INDEX +#error Whoops! serial console and kgdb are on the same smc serial port +#endif + +#if CONFIG_KGDB_INDEX == 1 /* KGDB Port on SMC1 */ + +#define KGDB_SMC_INDEX 0 +#define KGDB_PROFF_SMC_BASE PROFF_SMC1_BASE +#define KGDB_PROFF_SMC PROFF_SMC1 +#define KGDB_CPM_CR_SMC_PAGE CPM_CR_SMC1_PAGE +#define KGDB_CPM_CR_SMC_SBLOCK CPM_CR_SMC1_SBLOCK +#define KGDB_CMXSMR_MASK (CMXSMR_SMC1|CMXSMR_SMC1CS_MSK) +#define KGDB_CMXSMR_VALUE CMXSMR_SMC1CS_BRG7 + +#elif CONFIG_KGDB_INDEX == 2 /* KGDB Port on SMC2 */ + +#define KGDB_SMC_INDEX 1 +#define KGDB_PROFF_SMC_BASE PROFF_SMC2_BASE +#define KGDB_PROFF_SMC PROFF_SMC2 +#define KGDB_CPM_CR_SMC_PAGE CPM_CR_SMC2_PAGE +#define KGDB_CPM_CR_SMC_SBLOCK CPM_CR_SMC2_SBLOCK +#define KGDB_CMXSMR_MASK (CMXSMR_SMC2|CMXSMR_SMC2CS_MSK) +#define KGDB_CMXSMR_VALUE CMXSMR_SMC2CS_BRG8 + +#else + +#error "console not correctly defined" + +#endif + +void +kgdb_serial_init (void) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile smc_t *sp; + volatile smc_uart_t *up; + volatile cbd_t *tbdf, *rbdf; + volatile cpm8260_t *cp = &(im->im_cpm); + uint dpaddr, speed = CONFIG_KGDB_BAUDRATE; + char *s, *e; + + if ((s = getenv("kgdbrate")) != NULL && *s != '\0') { + ulong rate = simple_strtoul(s, &e, 10); + if (e > s && *e == '\0') + speed = rate; + } + + /* initialize pointers to SMC */ + + sp = (smc_t *) &(im->im_smc[KGDB_SMC_INDEX]); + *(ushort *)(&im->im_dprambase[KGDB_PROFF_SMC_BASE]) = KGDB_PROFF_SMC; + up = (smc_uart_t *)&im->im_dprambase[KGDB_PROFF_SMC]; + + /* Disable transmitter/receiver. */ + sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN); + + /* NOTE: I/O port pins are set up via the iop_conf_tab[] table */ + + /* Allocate space for two buffer descriptors in the DP ram. + * damm: allocating space after the two buffers for rx/tx data + */ + + dpaddr = m8260_cpm_dpalloc((2 * sizeof (cbd_t)) + 2, 16); + + /* Set the physical address of the host memory buffers in + * the buffer descriptors. + */ + rbdf = (cbd_t *)&im->im_dprambase[dpaddr]; + rbdf->cbd_bufaddr = (uint) (rbdf+2); + rbdf->cbd_sc = 0; + tbdf = rbdf + 1; + tbdf->cbd_bufaddr = ((uint) (rbdf+2)) + 1; + tbdf->cbd_sc = 0; + + /* Set up the uart parameters in the parameter ram. */ + up->smc_rbase = dpaddr; + up->smc_tbase = dpaddr+sizeof(cbd_t); + up->smc_rfcr = CPMFCR_EB; + up->smc_tfcr = CPMFCR_EB; + up->smc_brklen = 0; + up->smc_brkec = 0; + up->smc_brkcr = 0; + + /* Set UART mode, 8 bit, no parity, one stop. + * Enable receive and transmit. + */ + sp->smc_smcmr = smcr_mk_clen(9) | SMCMR_SM_UART; + + /* Mask all interrupts and remove anything pending. */ + sp->smc_smcm = 0; + sp->smc_smce = 0xff; + + /* put the SMC channel into NMSI (non multiplexd serial interface) + * mode and wire either BRG7 to SMC1 or BRG8 to SMC2 (15-17). + */ + im->im_cpmux.cmx_smr = + (im->im_cpmux.cmx_smr & ~KGDB_CMXSMR_MASK) | KGDB_CMXSMR_VALUE; + + /* Set up the baud rate generator. */ +#if defined(CONFIG_KGDB_USE_EXTC) + m8260_cpm_extcbrg(brg_map[KGDB_SMC_INDEX], speed, + CONFIG_KGDB_EXTC_RATE, CONFIG_KGDB_EXTC_PINSEL); +#else + m8260_cpm_setbrg(brg_map[KGDB_SMC_INDEX], speed); +#endif + + /* Make the first buffer the only buffer. */ + tbdf->cbd_sc |= BD_SC_WRAP; + rbdf->cbd_sc |= BD_SC_EMPTY | BD_SC_WRAP; + + /* Single character receive. */ + up->smc_mrblr = 1; + up->smc_maxidl = 0; + + /* Initialize Tx/Rx parameters. */ + + while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + + cp->cp_cpcr = mk_cr_cmd(KGDB_CPM_CR_SMC_PAGE, KGDB_CPM_CR_SMC_SBLOCK, + 0, CPM_CR_INIT_TRX) | CPM_CR_FLG; + + while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + + /* Enable transmitter/receiver. */ + sp->smc_smcmr |= SMCMR_REN | SMCMR_TEN; + + printf("SMC%d at %dbps ", CONFIG_KGDB_INDEX, speed); +} + +void +putDebugChar(const char c) +{ + volatile cbd_t *tbdf; + volatile char *buf; + volatile smc_uart_t *up; + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + + if (c == '\n') + putDebugChar ('\r'); + + up = (smc_uart_t *)&(im->im_dprambase[KGDB_PROFF_SMC]); + + tbdf = (cbd_t *)&im->im_dprambase[up->smc_tbase]; + + /* Wait for last character to go. */ + buf = (char *)tbdf->cbd_bufaddr; + while (tbdf->cbd_sc & BD_SC_READY) + ; + + *buf = c; + tbdf->cbd_datlen = 1; + tbdf->cbd_sc |= BD_SC_READY; +} + +void +putDebugStr (const char *s) +{ + while (*s) { + putDebugChar (*s++); + } +} + +int +getDebugChar(void) +{ + volatile cbd_t *rbdf; + volatile unsigned char *buf; + volatile smc_uart_t *up; + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + unsigned char c; + + up = (smc_uart_t *)&(im->im_dprambase[KGDB_PROFF_SMC]); + + rbdf = (cbd_t *)&im->im_dprambase[up->smc_rbase]; + + /* Wait for character to show up. */ + buf = (unsigned char *)rbdf->cbd_bufaddr; + while (rbdf->cbd_sc & BD_SC_EMPTY) + ; + c = *buf; + rbdf->cbd_sc |= BD_SC_EMPTY; + + return(c); +} + +void +kgdb_interruptible(int yes) +{ + return; +} + +#endif /* CONFIG_KGDB_ON_SMC */ diff --git a/arch/ppc/cpu/mpc8260/speed.c b/arch/ppc/cpu/mpc8260/speed.c new file mode 100644 index 0000000..0e1c2b0 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/speed.c @@ -0,0 +1,253 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc8260.h> +#include <asm/processor.h> + +#if defined(CONFIG_BOARD_GET_CPU_CLK_F) +extern unsigned long board_get_cpu_clk_f (void); +#endif + +DECLARE_GLOBAL_DATA_PTR; + +/* ------------------------------------------------------------------------- */ + +/* Bus-to-Core Multiplier */ +#define _1x 2 +#define _1_5x 3 +#define _2x 4 +#define _2_5x 5 +#define _3x 6 +#define _3_5x 7 +#define _4x 8 +#define _4_5x 9 +#define _5x 10 +#define _5_5x 11 +#define _6x 12 +#define _6_5x 13 +#define _7x 14 +#define _7_5x 15 +#define _8x 16 +#define _byp -1 +#define _off -2 +#define _unk -3 + +typedef struct { + int b2c_mult; + int vco_div; + char *freq_60x; + char *freq_core; +} corecnf_t; + +/* + * this table based on "Errata to MPC8260 PowerQUICC II User's Manual", + * Rev. 1, 8/2000, page 10. + */ +corecnf_t corecnf_tab[] = { + { _1_5x, 4, " 33-100", " 33-100" }, /* 0x00 */ + { _1x, 4, " 50-150", " 50-150" }, /* 0x01 */ + { _1x, 8, " 25-75 ", " 25-75 " }, /* 0x02 */ + { _byp, -1, " ?-? ", " ?-? " }, /* 0x03 */ + { _2x, 2, " 50-150", "100-300" }, /* 0x04 */ + { _2x, 4, " 25-75 ", " 50-150" }, /* 0x05 */ + { _2_5x, 2, " 40-120", "100-240" }, /* 0x06 */ + { _4_5x, 2, " 22-65 ", "100-300" }, /* 0x07 */ + { _3x, 2, " 33-100", "100-300" }, /* 0x08 */ + { _5_5x, 2, " 18-55 ", "100-300" }, /* 0x09 */ + { _4x, 2, " 25-75 ", "100-300" }, /* 0x0A */ + { _5x, 2, " 20-60 ", "100-300" }, /* 0x0B */ + { _1_5x, 8, " 16-50 ", " 16-50 " }, /* 0x0C */ + { _6x, 2, " 16-50 ", "100-300" }, /* 0x0D */ + { _3_5x, 2, " 30-85 ", "100-300" }, /* 0x0E */ + { _off, -1, " ?-? ", " ?-? " }, /* 0x0F */ + { _3x, 4, " 16-50 ", " 50-150" }, /* 0x10 */ + { _2_5x, 4, " 20-60 ", " 50-120" }, /* 0x11 */ + { _6_5x, 2, " 15-46 ", "100-300" }, /* 0x12 */ + { _byp, -1, " ?-? ", " ?-? " }, /* 0x13 */ + { _7x, 2, " 14-43 ", "100-300" }, /* 0x14 */ + { _2x, 4, " 25-75 ", " 50-150" }, /* 0x15 */ + { _7_5x, 2, " 13-40 ", "100-300" }, /* 0x16 */ + { _4_5x, 2, " 22-65 ", "100-300" }, /* 0x17 */ + { _unk, -1, " ?-? ", " ?-? " }, /* 0x18 */ + { _5_5x, 2, " 18-55 ", "100-300" }, /* 0x19 */ + { _4x, 2, " 25-75 ", "100-300" }, /* 0x1A */ + { _5x, 2, " 20-60 ", "100-300" }, /* 0x1B */ + { _8x, 2, " 12-38 ", "100-300" }, /* 0x1C */ + { _6x, 2, " 16-50 ", "100-300" }, /* 0x1D */ + { _3_5x, 2, " 30-85 ", "100-300" }, /* 0x1E */ + { _off, -1, " ?-? ", " ?-? " }, /* 0x1F */ +}; + +/* ------------------------------------------------------------------------- */ + +/* + * + */ + +int get_clocks (void) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + ulong clkin; + ulong sccr, dfbrg; + ulong scmr, corecnf, busdf, cpmdf, plldf, pllmf; + corecnf_t *cp; + +#if !defined(CONFIG_8260_CLKIN) +#error clock measuring not implemented yet - define CONFIG_8260_CLKIN +#else +#if defined(CONFIG_BOARD_GET_CPU_CLK_F) + clkin = board_get_cpu_clk_f (); +#else + clkin = CONFIG_8260_CLKIN; +#endif +#endif + + sccr = immap->im_clkrst.car_sccr; + dfbrg = (sccr & SCCR_DFBRG_MSK) >> SCCR_DFBRG_SHIFT; + + scmr = immap->im_clkrst.car_scmr; + corecnf = (scmr & SCMR_CORECNF_MSK) >> SCMR_CORECNF_SHIFT; + cp = &corecnf_tab[corecnf]; + + busdf = (scmr & SCMR_BUSDF_MSK) >> SCMR_BUSDF_SHIFT; + cpmdf = (scmr & SCMR_CPMDF_MSK) >> SCMR_CPMDF_SHIFT; + + /* HiP7, HiP7 Rev01, HiP7 RevA */ + if ((get_pvr () == PVR_8260_HIP7) || + (get_pvr () == PVR_8260_HIP7R1) || + (get_pvr () == PVR_8260_HIP7RA)) { + pllmf = (scmr & SCMR_PLLMF_MSKH7) >> SCMR_PLLMF_SHIFT; + gd->vco_out = clkin * (pllmf + 1); + } else { /* HiP3, HiP4 */ + pllmf = (scmr & SCMR_PLLMF_MSK) >> SCMR_PLLMF_SHIFT; + plldf = (scmr & SCMR_PLLDF) ? 1 : 0; + gd->vco_out = (clkin * 2 * (pllmf + 1)) / (plldf + 1); + } +#if 0 + if (gd->vco_out / (busdf + 1) != clkin) { + /* aaarrrggghhh!!! */ + return (1); + } +#endif + + gd->cpm_clk = gd->vco_out / 2; + gd->bus_clk = clkin; + gd->scc_clk = gd->vco_out / 4; + gd->brg_clk = gd->vco_out / (1 << (2 * (dfbrg + 1))); + + if (cp->b2c_mult > 0) { + gd->cpu_clk = (clkin * cp->b2c_mult) / 2; + } else { + gd->cpu_clk = clkin; + } + +#ifdef CONFIG_PCI + gd->pci_clk = clkin; + + if (sccr & SCCR_PCI_MODE) { + uint pci_div; + uint pcidf = (sccr & SCCR_PCIDF_MSK) >> SCCR_PCIDF_SHIFT; + + if (sccr & SCCR_PCI_MODCK) { + pci_div = 2; + if (pcidf == 9) { + pci_div *= 5; + } else if (pcidf == 0xB) { + pci_div *= 6; + } else { + pci_div *= (pcidf + 1); + } + } else { + pci_div = pcidf + 1; + } + + gd->pci_clk = (gd->cpm_clk * 2) / pci_div; + } +#endif + + return (0); +} + +int prt_8260_clks (void) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + ulong sccr, dfbrg; + ulong scmr, corecnf, busdf, cpmdf, plldf, pllmf, pcidf; + corecnf_t *cp; + + sccr = immap->im_clkrst.car_sccr; + dfbrg = (sccr & SCCR_DFBRG_MSK) >> SCCR_DFBRG_SHIFT; + + scmr = immap->im_clkrst.car_scmr; + corecnf = (scmr & SCMR_CORECNF_MSK) >> SCMR_CORECNF_SHIFT; + busdf = (scmr & SCMR_BUSDF_MSK) >> SCMR_BUSDF_SHIFT; + cpmdf = (scmr & SCMR_CPMDF_MSK) >> SCMR_CPMDF_SHIFT; + plldf = (scmr & SCMR_PLLDF) ? 1 : 0; + pllmf = (scmr & SCMR_PLLMF_MSK) >> SCMR_PLLMF_SHIFT; + pcidf = (sccr & SCCR_PCIDF_MSK) >> SCCR_PCIDF_SHIFT; + + cp = &corecnf_tab[corecnf]; + + puts (CPU_ID_STR " Clock Configuration\n - Bus-to-Core Mult "); + + switch (cp->b2c_mult) { + case _byp: + puts ("BYPASS"); + break; + + case _off: + puts ("OFF"); + break; + + case _unk: + puts ("UNKNOWN"); + break; + + default: + printf ("%d%sx", + cp->b2c_mult / 2, + (cp->b2c_mult % 2) ? ".5" : ""); + break; + } + + printf (", VCO Div %d, 60x Bus Freq %s, Core Freq %s\n", + cp->vco_div, cp->freq_60x, cp->freq_core); + + printf (" - dfbrg %ld, corecnf 0x%02lx, busdf %ld, cpmdf %ld, " + "plldf %ld, pllmf %ld, pcidf %ld\n", + dfbrg, corecnf, busdf, cpmdf, + plldf, pllmf, pcidf); + + printf (" - vco_out %10ld, scc_clk %10ld, brg_clk %10ld\n", + gd->vco_out, gd->scc_clk, gd->brg_clk); + + printf (" - cpu_clk %10ld, cpm_clk %10ld, bus_clk %10ld\n", + gd->cpu_clk, gd->cpm_clk, gd->bus_clk); +#ifdef CONFIG_PCI + printf (" - pci_clk %10ld\n", gd->pci_clk); +#endif + putc ('\n'); + + return (0); +} diff --git a/arch/ppc/cpu/mpc8260/speed.h b/arch/ppc/cpu/mpc8260/speed.h new file mode 100644 index 0000000..3f32a14 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/speed.h @@ -0,0 +1,54 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/*----------------------------------------------------------------------- + * Timer value for timer 2, ICLK = 10 + * + * SPEED_FCOUNT2 = GCLK / (16 * (TIMER_TMR_PS + 1)) + * SPEED_TMR3_PS = (GCLK / (16 * SPEED_FCOUNT3)) - 1 + * + * SPEED_FCOUNT2 timer 2 counting frequency + * GCLK CPU clock + * SPEED_TMR2_PS prescaler + */ +#define SPEED_TMR2_PS (250 - 1) /* divide by 250 */ + +/*----------------------------------------------------------------------- + * Timer value for PIT + * + * PIT_TIME = SPEED_PITC / PITRTCLK + * PITRTCLK = 8192 + */ +#define SPEED_PITC (82 << 16) /* start counting from 82 */ + +/* + * The new value for PTA is calculated from + * + * PTA = (gclk * Trefresh) / (2 ^ (2 * DFBRG) * PTP * NCS) + * + * gclk CPU clock (not bus clock !) + * Trefresh Refresh cycle * 4 (four word bursts used) + * DFBRG For normal mode (no clock reduction) always 0 + * PTP Prescaler (already adjusted for no. of banks and 4K / 8K refresh) + * NCS Number of SDRAM banks (chip selects) on this UPM. + */ diff --git a/arch/ppc/cpu/mpc8260/spi.c b/arch/ppc/cpu/mpc8260/spi.c new file mode 100644 index 0000000..f5d2ac3 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/spi.c @@ -0,0 +1,435 @@ +/* + * Copyright (c) 2001 Navin Boppuri / Prashant Patel + * <nboppuri@trinetcommunication.com>, + * <pmpatel@trinetcommunication.com> + * Copyright (c) 2001 Gerd Mennchen <Gerd.Mennchen@icn.siemens.de> + * Copyright (c) 2001-2003 Wolfgang Denk, DENX Software Engineering, <wd@denx.de>. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * MPC8260 CPM SPI interface. + * + * Parts of this code are probably not portable and/or specific to + * the board which I used for the tests. Please send fixes/complaints + * to wd@denx.de + * + */ + +#include <common.h> +#include <asm/cpm_8260.h> +#include <linux/ctype.h> +#include <malloc.h> +#include <post.h> +#include <net.h> + +#if defined(CONFIG_SPI) + +/* Warning: + * You cannot enable DEBUG for early system initalization, i. e. when + * this driver is used to read environment parameters like "baudrate" + * from EEPROM which are used to initialize the serial port which is + * needed to print the debug messages... + */ +#undef DEBUG + +#define SPI_EEPROM_WREN 0x06 +#define SPI_EEPROM_RDSR 0x05 +#define SPI_EEPROM_READ 0x03 +#define SPI_EEPROM_WRITE 0x02 + +/* --------------------------------------------------------------- + * Offset for initial SPI buffers in DPRAM: + * We need a 520 byte scratch DPRAM area to use at an early stage. + * It is used between the two initialization calls (spi_init_f() + * and spi_init_r()). + * The value 0x2000 makes it far enough from the start of the data + * area (as well as from the stack pointer). + * --------------------------------------------------------------- */ +#ifndef CONFIG_SYS_SPI_INIT_OFFSET +#define CONFIG_SYS_SPI_INIT_OFFSET 0x2000 +#endif + +#define CPM_SPI_BASE 0x100 + +#ifdef DEBUG + +#define DPRINT(a) printf a; +/* ----------------------------------------------- + * Helper functions to peek into tx and rx buffers + * ----------------------------------------------- */ +static const char * const hex_digit = "0123456789ABCDEF"; + +static char quickhex (int i) +{ + return hex_digit[i]; +} + +static void memdump (void *pv, int num) +{ + int i; + unsigned char *pc = (unsigned char *) pv; + + for (i = 0; i < num; i++) + printf ("%c%c ", quickhex (pc[i] >> 4), quickhex (pc[i] & 0x0f)); + printf ("\t"); + for (i = 0; i < num; i++) + printf ("%c", isprint (pc[i]) ? pc[i] : '.'); + printf ("\n"); +} +#else /* !DEBUG */ + +#define DPRINT(a) + +#endif /* DEBUG */ + +/* ------------------- + * Function prototypes + * ------------------- */ +void spi_init (void); + +ssize_t spi_read (uchar *, int, uchar *, int); +ssize_t spi_write (uchar *, int, uchar *, int); +ssize_t spi_xfer (size_t); + +/* ------------------- + * Variables + * ------------------- */ + +#define MAX_BUFFER 0x104 + +/* ---------------------------------------------------------------------- + * Initially we place the RX and TX buffers at a fixed location in DPRAM! + * ---------------------------------------------------------------------- */ +static uchar *rxbuf = + (uchar *)&((immap_t *)CONFIG_SYS_IMMR)->im_dprambase + [CONFIG_SYS_SPI_INIT_OFFSET]; +static uchar *txbuf = + (uchar *)&((immap_t *)CONFIG_SYS_IMMR)->im_dprambase + [CONFIG_SYS_SPI_INIT_OFFSET+MAX_BUFFER]; + +/* ************************************************************************** + * + * Function: spi_init_f + * + * Description: Init SPI-Controller (ROM part) + * + * return: --- + * + * *********************************************************************** */ +void spi_init_f (void) +{ + unsigned int dpaddr; + + volatile spi_t *spi; + volatile immap_t *immr; + volatile cpm8260_t *cp; + volatile cbd_t *tbdf, *rbdf; + + immr = (immap_t *) CONFIG_SYS_IMMR; + cp = (cpm8260_t *) &immr->im_cpm; + + *(ushort *)(&immr->im_dprambase[PROFF_SPI_BASE]) = PROFF_SPI; + spi = (spi_t *)&immr->im_dprambase[PROFF_SPI]; + +/* 1 */ + /* ------------------------------------------------ + * Initialize Port D SPI pins + * (we are only in Master Mode !) + * ------------------------------------------------ */ + + /* -------------------------------------------- + * GPIO or per. Function + * PPARD[16] = 1 [0x00008000] (SPIMISO) + * PPARD[17] = 1 [0x00004000] (SPIMOSI) + * PPARD[18] = 1 [0x00002000] (SPICLK) + * PPARD[12] = 0 [0x00080000] -> GPIO: (CS for ATC EEPROM) + * -------------------------------------------- */ + immr->im_ioport.iop_ppard |= 0x0000E000; /* set bits */ + immr->im_ioport.iop_ppard &= ~0x00080000; /* reset bit */ + + /* ---------------------------------------------- + * In/Out or per. Function 0/1 + * PDIRD[16] = 0 [0x00008000] -> PERI1: SPIMISO + * PDIRD[17] = 0 [0x00004000] -> PERI1: SPIMOSI + * PDIRD[18] = 0 [0x00002000] -> PERI1: SPICLK + * PDIRD[12] = 1 [0x00080000] -> GPIO OUT: CS for ATC EEPROM + * ---------------------------------------------- */ + immr->im_ioport.iop_pdird &= ~0x0000E000; + immr->im_ioport.iop_pdird |= 0x00080000; + + /* ---------------------------------------------- + * special option reg. + * PSORD[16] = 1 [0x00008000] -> SPIMISO + * PSORD[17] = 1 [0x00004000] -> SPIMOSI + * PSORD[18] = 1 [0x00002000] -> SPICLK + * ---------------------------------------------- */ + immr->im_ioport.iop_psord |= 0x0000E000; + + /* Initialize the parameter ram. + * We need to make sure many things are initialized to zero + */ + spi->spi_rstate = 0; + spi->spi_rdp = 0; + spi->spi_rbptr = 0; + spi->spi_rbc = 0; + spi->spi_rxtmp = 0; + spi->spi_tstate = 0; + spi->spi_tdp = 0; + spi->spi_tbptr = 0; + spi->spi_tbc = 0; + spi->spi_txtmp = 0; + + /* Allocate space for one transmit and one receive buffer + * descriptor in the DP ram + */ +#ifdef CONFIG_SYS_ALLOC_DPRAM + dpaddr = m8260_cpm_dpalloc (sizeof(cbd_t)*2, 8); +#else + dpaddr = CPM_SPI_BASE; +#endif + +/* 3 */ + /* Set up the SPI parameters in the parameter ram */ + spi->spi_rbase = dpaddr; + spi->spi_tbase = dpaddr + sizeof (cbd_t); + + /***********IMPORTANT******************/ + + /* + * Setting transmit and receive buffer descriptor pointers + * initially to rbase and tbase. Only the microcode patches + * documentation talks about initializing this pointer. This + * is missing from the sample I2C driver. If you dont + * initialize these pointers, the kernel hangs. + */ + spi->spi_rbptr = spi->spi_rbase; + spi->spi_tbptr = spi->spi_tbase; + +/* 4 */ + /* Init SPI Tx + Rx Parameters */ + while (cp->cp_cpcr & CPM_CR_FLG) + ; + cp->cp_cpcr = mk_cr_cmd(CPM_CR_SPI_PAGE, CPM_CR_SPI_SBLOCK, + 0, CPM_CR_INIT_TRX) | CPM_CR_FLG; + while (cp->cp_cpcr & CPM_CR_FLG) + ; + +/* 6 */ + /* Set to big endian. */ + spi->spi_tfcr = CPMFCR_EB; + spi->spi_rfcr = CPMFCR_EB; + +/* 7 */ + /* Set maximum receive size. */ + spi->spi_mrblr = MAX_BUFFER; + +/* 8 + 9 */ + /* tx and rx buffer descriptors */ + tbdf = (cbd_t *) & immr->im_dprambase[spi->spi_tbase]; + rbdf = (cbd_t *) & immr->im_dprambase[spi->spi_rbase]; + + tbdf->cbd_sc &= ~BD_SC_READY; + rbdf->cbd_sc &= ~BD_SC_EMPTY; + + /* Set the bd's rx and tx buffer address pointers */ + rbdf->cbd_bufaddr = (ulong) rxbuf; + tbdf->cbd_bufaddr = (ulong) txbuf; + +/* 10 + 11 */ + immr->im_spi.spi_spie = SPI_EMASK; /* Clear all SPI events */ + immr->im_spi.spi_spim = 0x00; /* Mask all SPI events */ + + + return; +} + +/* ************************************************************************** + * + * Function: spi_init_r + * + * Description: Init SPI-Controller (RAM part) - + * The malloc engine is ready and we can move our buffers to + * normal RAM + * + * return: --- + * + * *********************************************************************** */ +void spi_init_r (void) +{ + volatile spi_t *spi; + volatile immap_t *immr; + volatile cpm8260_t *cp; + volatile cbd_t *tbdf, *rbdf; + + immr = (immap_t *) CONFIG_SYS_IMMR; + cp = (cpm8260_t *) &immr->im_cpm; + + spi = (spi_t *)&immr->im_dprambase[PROFF_SPI]; + + /* tx and rx buffer descriptors */ + tbdf = (cbd_t *) & immr->im_dprambase[spi->spi_tbase]; + rbdf = (cbd_t *) & immr->im_dprambase[spi->spi_rbase]; + + /* Allocate memory for RX and TX buffers */ + rxbuf = (uchar *) malloc (MAX_BUFFER); + txbuf = (uchar *) malloc (MAX_BUFFER); + + rbdf->cbd_bufaddr = (ulong) rxbuf; + tbdf->cbd_bufaddr = (ulong) txbuf; + + return; +} + +/**************************************************************************** + * Function: spi_write + **************************************************************************** */ +ssize_t spi_write (uchar *addr, int alen, uchar *buffer, int len) +{ + int i; + + memset(rxbuf, 0, MAX_BUFFER); + memset(txbuf, 0, MAX_BUFFER); + *txbuf = SPI_EEPROM_WREN; /* write enable */ + spi_xfer(1); + memcpy(txbuf, addr, alen); + *txbuf = SPI_EEPROM_WRITE; /* WRITE memory array */ + memcpy(alen + txbuf, buffer, len); + spi_xfer(alen + len); + /* ignore received data */ + for (i = 0; i < 1000; i++) { + *txbuf = SPI_EEPROM_RDSR; /* read status */ + txbuf[1] = 0; + spi_xfer(2); + if (!(rxbuf[1] & 1)) { + break; + } + udelay(1000); + } + if (i >= 1000) { + printf ("*** spi_write: Time out while writing!\n"); + } + + return len; +} + +/**************************************************************************** + * Function: spi_read + **************************************************************************** */ +ssize_t spi_read (uchar *addr, int alen, uchar *buffer, int len) +{ + memset(rxbuf, 0, MAX_BUFFER); + memset(txbuf, 0, MAX_BUFFER); + memcpy(txbuf, addr, alen); + *txbuf = SPI_EEPROM_READ; /* READ memory array */ + + /* + * There is a bug in 860T (?) that cuts the last byte of input + * if we're reading into DPRAM. The solution we choose here is + * to always read len+1 bytes (we have one extra byte at the + * end of the buffer). + */ + spi_xfer(alen + len + 1); + memcpy(buffer, alen + rxbuf, len); + + return len; +} + +/**************************************************************************** + * Function: spi_xfer + **************************************************************************** */ +ssize_t spi_xfer (size_t count) +{ + volatile immap_t *immr; + volatile cpm8260_t *cp; + volatile spi_t *spi; + cbd_t *tbdf, *rbdf; + int tm; + + DPRINT (("*** spi_xfer entered ***\n")); + + immr = (immap_t *) CONFIG_SYS_IMMR; + cp = (cpm8260_t *) &immr->im_cpm; + + spi = (spi_t *)&immr->im_dprambase[PROFF_SPI]; + + tbdf = (cbd_t *) & immr->im_dprambase[spi->spi_tbase]; + rbdf = (cbd_t *) & immr->im_dprambase[spi->spi_rbase]; + + /* Board-specific: Set CS for device (ATC EEPROM) */ + immr->im_ioport.iop_pdatd &= ~0x00080000; + + /* Setting tx bd status and data length */ + tbdf->cbd_sc = BD_SC_READY | BD_SC_LAST | BD_SC_WRAP; + tbdf->cbd_datlen = count; + + DPRINT (("*** spi_xfer: Bytes to be xferred: %d ***\n", + tbdf->cbd_datlen)); + + /* Setting rx bd status and data length */ + rbdf->cbd_sc = BD_SC_EMPTY | BD_SC_WRAP; + rbdf->cbd_datlen = 0; /* rx length has no significance */ + + immr->im_spi.spi_spmode = SPMODE_REV | + SPMODE_MSTR | + SPMODE_EN | + SPMODE_LEN(8) | /* 8 Bits per char */ + SPMODE_PM(0x8) ; /* medium speed */ + immr->im_spi.spi_spie = SPI_EMASK; /* Clear all SPI events */ + immr->im_spi.spi_spim = 0x00; /* Mask all SPI events */ + + /* start spi transfer */ + DPRINT (("*** spi_xfer: Performing transfer ...\n")); + immr->im_spi.spi_spcom |= SPI_STR; /* Start transmit */ + + /* -------------------------------- + * Wait for SPI transmit to get out + * or time out (1 second = 1000 ms) + * -------------------------------- */ + for (tm=0; tm<1000; ++tm) { + if (immr->im_spi.spi_spie & SPI_TXB) { /* Tx Buffer Empty */ + DPRINT (("*** spi_xfer: Tx buffer empty\n")); + break; + } + if ((tbdf->cbd_sc & BD_SC_READY) == 0) { + DPRINT (("*** spi_xfer: Tx BD done\n")); + break; + } + udelay (1000); + } + if (tm >= 1000) { + printf ("*** spi_xfer: Time out while xferring to/from SPI!\n"); + } + DPRINT (("*** spi_xfer: ... transfer ended\n")); + +#ifdef DEBUG + printf ("\nspi_xfer: txbuf after xfer\n"); + memdump ((void *) txbuf, 16); /* dump of txbuf before transmit */ + printf ("spi_xfer: rxbuf after xfer\n"); + memdump ((void *) rxbuf, 16); /* dump of rxbuf after transmit */ + printf ("\n"); +#endif + + /* Clear CS for device */ + immr->im_ioport.iop_pdatd |= 0x00080000; + + return count; +} +#endif /* CONFIG_SPI */ diff --git a/arch/ppc/cpu/mpc8260/start.S b/arch/ppc/cpu/mpc8260/start.S new file mode 100644 index 0000000..1fc70bc --- /dev/null +++ b/arch/ppc/cpu/mpc8260/start.S @@ -0,0 +1,1023 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2000, 2001,2002 Wolfgang Denk <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * U-Boot - Startup Code for MPC8260 PowerPC based Embedded Boards + */ +#include <config.h> +#include <mpc8260.h> +#include <timestamp.h> +#include <version.h> + +#define CONFIG_8260 1 /* needed for Linux kernel header files */ +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +/* We don't want the MMU yet. +*/ +#undef MSR_KERNEL +/* Floating Point enable, Machine Check and Recoverable Interr. */ +#ifdef DEBUG +#define MSR_KERNEL (MSR_FP|MSR_RI) +#else +#define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI) +#endif + +/* + * Set up GOT: Global Offset Table + * + * Use r12 to access the GOT + */ + START_GOT + GOT_ENTRY(_GOT2_TABLE_) + GOT_ENTRY(_FIXUP_TABLE_) + + GOT_ENTRY(_start) + GOT_ENTRY(_start_of_vectors) + GOT_ENTRY(_end_of_vectors) + GOT_ENTRY(transfer_to_handler) + + GOT_ENTRY(__init_end) + GOT_ENTRY(_end) + GOT_ENTRY(__bss_start) +#if defined(CONFIG_HYMOD) + GOT_ENTRY(environment) +#endif + END_GOT + +/* + * Version string - must be in data segment because MPC8260 uses the first + * 256 bytes for the Hard Reset Configuration Word table (see below). + * Similarly, can't have the U-Boot Magic Number as the first thing in + * the image - don't know how this will affect the image tools, but I guess + * I'll find out soon + */ + .data + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" + .ascii CONFIG_IDENT_STRING, "\0" + +/* + * Hard Reset Configuration Word (HRCW) table + * + * The Hard Reset Configuration Word (HRCW) sets a number of useful things + * such as whether there is an external memory controller, whether the + * PowerPC core is disabled (i.e. only the communications processor is + * active, accessed by another CPU on the bus), whether using external + * arbitration, external bus mode, boot port size, core initial prefix, + * internal space base, boot memory space, etc. + * + * These things dictate where the processor begins execution, where the + * boot ROM appears in memory, the memory controller setup when access + * boot ROM, etc. The HRCW is *extremely* important. + * + * The HRCW is read from the bus during reset. One CPU on the bus will + * be a hard reset configuration master, any others will be hard reset + * configuration slaves. The master reads eight HRCWs from flash during + * reset - the first it uses for itself, the other 7 it communicates to + * up to 7 configuration slaves by some complicated mechanism, which is + * not really important here. + * + * The configuration master performs 32 successive reads starting at address + * 0 and incrementing by 8 each read (i.e. on 64 bit boundaries) but only 8 + * bits is read, and always from byte lane D[0-7] (so that port size of the + * boot device does not matter). The first four reads form the 32 bit HRCW + * for the master itself. The second four reads form the HRCW for the first + * slave, and so on, up to seven slaves. The 32 bit HRCW is formed by + * concatenating the four bytes, with the first read placed in byte 0 (the + * most significant byte), and so on with the fourth read placed in byte 3 + * (the least significant byte). + */ +#define _HRCW_TABLE_ENTRY(w) \ + .fill 8,1,(((w)>>24)&0xff); \ + .fill 8,1,(((w)>>16)&0xff); \ + .fill 8,1,(((w)>> 8)&0xff); \ + .fill 8,1,(((w) )&0xff) + .text + .globl _hrcw_table +_hrcw_table: + _HRCW_TABLE_ENTRY(CONFIG_SYS_HRCW_MASTER) + _HRCW_TABLE_ENTRY(CONFIG_SYS_HRCW_SLAVE1) + _HRCW_TABLE_ENTRY(CONFIG_SYS_HRCW_SLAVE2) + _HRCW_TABLE_ENTRY(CONFIG_SYS_HRCW_SLAVE3) + _HRCW_TABLE_ENTRY(CONFIG_SYS_HRCW_SLAVE4) + _HRCW_TABLE_ENTRY(CONFIG_SYS_HRCW_SLAVE5) + _HRCW_TABLE_ENTRY(CONFIG_SYS_HRCW_SLAVE6) + _HRCW_TABLE_ENTRY(CONFIG_SYS_HRCW_SLAVE7) +/* + * After configuration, a system reset exception is executed using the + * vector at offset 0x100 relative to the base set by MSR[IP]. If MSR[IP] + * is 0, the base address is 0x00000000. If MSR[IP] is 1, the base address + * is 0xfff00000. In the case of a Power On Reset or Hard Reset, the value + * of MSR[IP] is determined by the CIP field in the HRCW. + * + * Other bits in the HRCW set up the Base Address and Port Size in BR0. + * This determines the location of the boot ROM (flash or EPROM) in the + * processor's address space at boot time. As long as the HRCW is set up + * so that we eventually end up executing the code below when the processor + * executes the reset exception, the actual values used should not matter. + * + * Once we have got here, the address mask in OR0 is cleared so that the + * bottom 32K of the boot ROM is effectively repeated all throughout the + * processor's address space, after which we can jump to the absolute + * address at which the boot ROM was linked at compile time, and proceed + * to initialise the memory controller without worrying if the rug will be + * pulled out from under us, so to speak (it will be fine as long as we + * configure BR0 with the same boot ROM link address). + */ + . = EXC_OFF_SYS_RESET + + .globl _start +_start: + li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH*/ + nop + b boot_cold + + . = EXC_OFF_SYS_RESET + 0x10 + + .globl _start_warm +_start_warm: + li r21, BOOTFLAG_WARM /* Software reboot */ + b boot_warm + +boot_cold: +#if defined(CONFIG_MPC8260ADS) && defined(CONFIG_SYS_DEFAULT_IMMR) + lis r3, CONFIG_SYS_DEFAULT_IMMR@h + nop + lwz r4, 0(r3) + nop + rlwinm r4, r4, 0, 8, 5 + nop + oris r4, r4, 0x0200 + nop + stw r4, 0(r3) + nop +#endif /* CONFIG_MPC8260ADS && CONFIG_SYS_DEFAULT_IMMR */ +boot_warm: + mfmsr r5 /* save msr contents */ + +#if defined(CONFIG_COGENT) + /* this is what the cogent EPROM does */ + li r0, 0 + mtmsr r0 + isync + bl cogent_init_8260 +#endif /* CONFIG_COGENT */ + +#if defined(CONFIG_SYS_DEFAULT_IMMR) + lis r3, CONFIG_SYS_IMMR@h + ori r3, r3, CONFIG_SYS_IMMR@l + lis r4, CONFIG_SYS_DEFAULT_IMMR@h + stw r3, 0x1A8(r4) +#endif /* CONFIG_SYS_DEFAULT_IMMR */ + + /* Initialise the MPC8260 processor core */ + /*--------------------------------------------------------------*/ + + bl init_8260_core + +#ifndef CONFIG_SYS_RAMBOOT + /* When booting from ROM (Flash or EPROM), clear the */ + /* Address Mask in OR0 so ROM appears everywhere */ + /*--------------------------------------------------------------*/ + + lis r3, (CONFIG_SYS_IMMR+IM_REGBASE)@h + lwz r4, IM_OR0@l(r3) + li r5, 0x7fff + and r4, r4, r5 + stw r4, IM_OR0@l(r3) + + /* Calculate absolute address in FLASH and jump there */ + /*--------------------------------------------------------------*/ + + lis r3, CONFIG_SYS_MONITOR_BASE@h + ori r3, r3, CONFIG_SYS_MONITOR_BASE@l + addi r3, r3, in_flash - _start + EXC_OFF_SYS_RESET + mtlr r3 + blr + +in_flash: +#endif /* CONFIG_SYS_RAMBOOT */ + + /* initialize some things that are hard to access from C */ + /*--------------------------------------------------------------*/ + + lis r3, CONFIG_SYS_IMMR@h /* set up stack in internal DPRAM */ + ori r1, r3, CONFIG_SYS_INIT_SP_OFFSET + li r0, 0 /* Make room for stack frame header and */ + stwu r0, -4(r1) /* clear final stack frame so that */ + stwu r0, -4(r1) /* stack backtraces terminate cleanly */ + + /* let the C-code set up the rest */ + /* */ + /* Be careful to keep code relocatable ! */ + /*--------------------------------------------------------------*/ + + GET_GOT /* initialize GOT access */ + + /* r3: IMMR */ + bl cpu_init_f /* run low-level CPU init code (in Flash)*/ + +#ifdef DEBUG + bl init_debug /* set up debugging stuff */ +#endif + + mr r3, r21 + /* r3: BOOTFLAG */ + bl board_init_f /* run 1st part of board init code (in Flash)*/ + +/* + * Vector Table + */ + + .globl _start_of_vectors +_start_of_vectors: + +/* Machine check */ + STD_EXCEPTION(0x200, MachineCheck, MachineCheckException) + +/* Data Storage exception. */ + STD_EXCEPTION(0x300, DataStorage, UnknownException) + +/* Instruction Storage exception. */ + STD_EXCEPTION(0x400, InstStorage, UnknownException) + +/* External Interrupt exception. */ + STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) + +/* Alignment exception. */ + . = 0x600 +Alignment: + EXCEPTION_PROLOG(SRR0, SRR1) + mfspr r4,DAR + stw r4,_DAR(r21) + mfspr r5,DSISR + stw r5,_DSISR(r21) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) + +/* Program check exception */ + . = 0x700 +ProgramCheck: + EXCEPTION_PROLOG(SRR0, SRR1) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, + MSR_KERNEL, COPY_EE) + + STD_EXCEPTION(0x800, FPUnavailable, UnknownException) + + /* I guess we could implement decrementer, and may have + * to someday for timekeeping. + */ + STD_EXCEPTION(0x900, Decrementer, timer_interrupt) + + STD_EXCEPTION(0xa00, Trap_0a, UnknownException) + STD_EXCEPTION(0xb00, Trap_0b, UnknownException) + STD_EXCEPTION(0xc00, SystemCall, UnknownException) + STD_EXCEPTION(0xd00, SingleStep, UnknownException) + + STD_EXCEPTION(0xe00, Trap_0e, UnknownException) + STD_EXCEPTION(0xf00, Trap_0f, UnknownException) + + STD_EXCEPTION(0x1000, InstructionTLBMiss, UnknownException) + STD_EXCEPTION(0x1100, DataLoadTLBMiss, UnknownException) + STD_EXCEPTION(0x1200, DataStoreTLBMiss, UnknownException) +#ifdef DEBUG + . = 0x1300 + /* + * This exception occurs when the program counter matches the + * Instruction Address Breakpoint Register (IABR). + * + * I want the cpu to halt if this occurs so I can hunt around + * with the debugger and look at things. + * + * When DEBUG is defined, both machine check enable (in the MSR) + * and checkstop reset enable (in the reset mode register) are + * turned off and so a checkstop condition will result in the cpu + * halting. + * + * I force the cpu into a checkstop condition by putting an illegal + * instruction here (at least this is the theory). + * + * well - that didnt work, so just do an infinite loop! + */ +1: b 1b +#else + STD_EXCEPTION(0x1300, InstructionBreakpoint, DebugException) +#endif + STD_EXCEPTION(0x1400, SMI, UnknownException) + + STD_EXCEPTION(0x1500, Trap_15, UnknownException) + STD_EXCEPTION(0x1600, Trap_16, UnknownException) + STD_EXCEPTION(0x1700, Trap_17, UnknownException) + STD_EXCEPTION(0x1800, Trap_18, UnknownException) + STD_EXCEPTION(0x1900, Trap_19, UnknownException) + STD_EXCEPTION(0x1a00, Trap_1a, UnknownException) + STD_EXCEPTION(0x1b00, Trap_1b, UnknownException) + STD_EXCEPTION(0x1c00, Trap_1c, UnknownException) + STD_EXCEPTION(0x1d00, Trap_1d, UnknownException) + STD_EXCEPTION(0x1e00, Trap_1e, UnknownException) + STD_EXCEPTION(0x1f00, Trap_1f, UnknownException) + STD_EXCEPTION(0x2000, Trap_20, UnknownException) + STD_EXCEPTION(0x2100, Trap_21, UnknownException) + STD_EXCEPTION(0x2200, Trap_22, UnknownException) + STD_EXCEPTION(0x2300, Trap_23, UnknownException) + STD_EXCEPTION(0x2400, Trap_24, UnknownException) + STD_EXCEPTION(0x2500, Trap_25, UnknownException) + STD_EXCEPTION(0x2600, Trap_26, UnknownException) + STD_EXCEPTION(0x2700, Trap_27, UnknownException) + STD_EXCEPTION(0x2800, Trap_28, UnknownException) + STD_EXCEPTION(0x2900, Trap_29, UnknownException) + STD_EXCEPTION(0x2a00, Trap_2a, UnknownException) + STD_EXCEPTION(0x2b00, Trap_2b, UnknownException) + STD_EXCEPTION(0x2c00, Trap_2c, UnknownException) + STD_EXCEPTION(0x2d00, Trap_2d, UnknownException) + STD_EXCEPTION(0x2e00, Trap_2e, UnknownException) + STD_EXCEPTION(0x2f00, Trap_2f, UnknownException) + + + .globl _end_of_vectors +_end_of_vectors: + + . = 0x3000 + +/* + * This code finishes saving the registers to the exception frame + * and jumps to the appropriate handler for the exception. + * Register r21 is pointer into trap frame, r1 has new stack pointer. + */ + .globl transfer_to_handler +transfer_to_handler: + stw r22,_NIP(r21) + lis r22,MSR_POW@h + andc r23,r23,r22 + stw r23,_MSR(r21) + SAVE_GPR(7, r21) + SAVE_4GPRS(8, r21) + SAVE_8GPRS(12, r21) + SAVE_8GPRS(24, r21) + mflr r23 + andi. r24,r23,0x3f00 /* get vector offset */ + stw r24,TRAP(r21) + li r22,0 + stw r22,RESULT(r21) + lwz r24,0(r23) /* virtual address of handler */ + lwz r23,4(r23) /* where to go when done */ + mtspr SRR0,r24 + mtspr SRR1,r20 + mtlr r23 + SYNC + rfi /* jump to handler, enable MMU */ + +int_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SRR0,r2 + mtspr SRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfi + +#if defined(CONFIG_COGENT) + +/* + * This code initialises the MPC8260 processor core + * (conforms to PowerPC 603e spec) + */ + + .globl cogent_init_8260 +cogent_init_8260: + + /* Taken from page 14 of CMA282 manual */ + /*--------------------------------------------------------------*/ + + lis r4, (CONFIG_SYS_IMMR+IM_REGBASE)@h + lis r3, CONFIG_SYS_IMMR@h + stw r3, IM_IMMR@l(r4) + lwz r3, IM_IMMR@l(r4) + stw r3, 0(r0) + lis r3, CONFIG_SYS_SYPCR@h + ori r3, r3, CONFIG_SYS_SYPCR@l + stw r3, IM_SYPCR@l(r4) + lwz r3, IM_SYPCR@l(r4) + stw r3, 4(r0) + lis r3, CONFIG_SYS_SCCR@h + ori r3, r3, CONFIG_SYS_SCCR@l + stw r3, IM_SCCR@l(r4) + lwz r3, IM_SCCR@l(r4) + stw r3, 8(r0) + + /* the rest of this was disassembled from the */ + /* EPROM code that came with my CMA282 CPU module */ + /*--------------------------------------------------------------*/ + + lis r1, 0x1234 + ori r1, r1, 0x5678 + stw r1, 0x20(r0) + lwz r1, 0x20(r0) + stw r1, 0x24(r0) + lwz r1, 0x24(r0) + lis r3, 0x0e80 + ori r3, r3, 0 + stw r1, 4(r3) + lwz r1, 4(r3) + + /* Done! */ + /*--------------------------------------------------------------*/ + + blr + +#endif /* CONFIG_COGENT */ + +/* + * This code initialises the MPC8260 processor core + * (conforms to PowerPC 603e spec) + * Note: expects original MSR contents to be in r5. + */ + + .globl init_8260_core +init_8260_core: + + /* Initialize machine status; enable machine check interrupt */ + /*--------------------------------------------------------------*/ + + li r3, MSR_KERNEL /* Set ME and RI flags */ + rlwimi r3, r5, 0, 25, 25 /* preserve IP bit set by HRCW */ +#ifdef DEBUG + rlwimi r3, r5, 0, 21, 22 /* debugger might set SE & BE bits */ +#endif + SYNC /* Some chip revs need this... */ + mtmsr r3 + SYNC + mtspr SRR1, r3 /* Make SRR1 match MSR */ + + /* Initialise the SYPCR early, and reset the watchdog (if req) */ + /*--------------------------------------------------------------*/ + + lis r3, (CONFIG_SYS_IMMR+IM_REGBASE)@h +#if !defined(CONFIG_COGENT) + lis r4, CONFIG_SYS_SYPCR@h + ori r4, r4, CONFIG_SYS_SYPCR@l + stw r4, IM_SYPCR@l(r3) +#endif /* !CONFIG_COGENT */ +#if defined(CONFIG_WATCHDOG) + li r4, 21868 /* = 0x556c */ + sth r4, IM_SWSR@l(r3) + li r4, -21959 /* = 0xaa39 */ + sth r4, IM_SWSR@l(r3) +#endif /* CONFIG_WATCHDOG */ + + /* Initialize the Hardware Implementation-dependent Registers */ + /* HID0 also contains cache control */ + /*--------------------------------------------------------------*/ + + lis r3, CONFIG_SYS_HID0_INIT@h + ori r3, r3, CONFIG_SYS_HID0_INIT@l + SYNC + mtspr HID0, r3 + + lis r3, CONFIG_SYS_HID0_FINAL@h + ori r3, r3, CONFIG_SYS_HID0_FINAL@l + SYNC + mtspr HID0, r3 + + lis r3, CONFIG_SYS_HID2@h + ori r3, r3, CONFIG_SYS_HID2@l + mtspr HID2, r3 + + /* clear all BAT's */ + /*--------------------------------------------------------------*/ + + li r0, 0 + mtspr DBAT0U, r0 + mtspr DBAT0L, r0 + mtspr DBAT1U, r0 + mtspr DBAT1L, r0 + mtspr DBAT2U, r0 + mtspr DBAT2L, r0 + mtspr DBAT3U, r0 + mtspr DBAT3L, r0 + mtspr IBAT0U, r0 + mtspr IBAT0L, r0 + mtspr IBAT1U, r0 + mtspr IBAT1L, r0 + mtspr IBAT2U, r0 + mtspr IBAT2L, r0 + mtspr IBAT3U, r0 + mtspr IBAT3L, r0 + SYNC + + /* invalidate all tlb's */ + /* */ + /* From the 603e User Manual: "The 603e provides the ability to */ + /* invalidate a TLB entry. The TLB Invalidate Entry (tlbie) */ + /* instruction invalidates the TLB entry indexed by the EA, and */ + /* operates on both the instruction and data TLBs simultaneously*/ + /* invalidating four TLB entries (both sets in each TLB). The */ + /* index corresponds to bits 15-19 of the EA. To invalidate all */ + /* entries within both TLBs, 32 tlbie instructions should be */ + /* issued, incrementing this field by one each time." */ + /* */ + /* "Note that the tlbia instruction is not implemented on the */ + /* 603e." */ + /* */ + /* bits 15-19 correspond to addresses 0x00000000 to 0x0001F000 */ + /* incrementing by 0x1000 each time. The code below is sort of */ + /* based on code in "flush_tlbs" from arch/ppc/kernel/head.S */ + /* */ + /*--------------------------------------------------------------*/ + + li r3, 32 + mtctr r3 + li r3, 0 +1: tlbie r3 + addi r3, r3, 0x1000 + bdnz 1b + SYNC + + /* Done! */ + /*--------------------------------------------------------------*/ + + blr + +#ifdef DEBUG + +/* + * initialise things related to debugging. + * + * must be called after the global offset table (GOT) is initialised + * (GET_GOT) and after cpu_init_f() has executed. + */ + + .globl init_debug +init_debug: + + lis r3, (CONFIG_SYS_IMMR+IM_REGBASE)@h + + /* Quick and dirty hack to enable the RAM and copy the */ + /* vectors so that we can take exceptions. */ + /*--------------------------------------------------------------*/ + /* write Memory Refresh Prescaler */ + li r4, CONFIG_SYS_MPTPR + sth r4, IM_MPTPR@l(r3) + /* write 60x Refresh Timer */ + li r4, CONFIG_SYS_PSRT + stb r4, IM_PSRT@l(r3) + /* init the 60x SDRAM Mode Register */ + lis r4, (CONFIG_SYS_PSDMR|PSDMR_OP_NORM)@h + ori r4, r4, (CONFIG_SYS_PSDMR|PSDMR_OP_NORM)@l + stw r4, IM_PSDMR@l(r3) + /* write Precharge All Banks command */ + lis r4, (CONFIG_SYS_PSDMR|PSDMR_OP_PREA)@h + ori r4, r4, (CONFIG_SYS_PSDMR|PSDMR_OP_PREA)@l + stw r4, IM_PSDMR@l(r3) + stb r0, 0(0) + /* write eight CBR Refresh commands */ + lis r4, (CONFIG_SYS_PSDMR|PSDMR_OP_CBRR)@h + ori r4, r4, (CONFIG_SYS_PSDMR|PSDMR_OP_CBRR)@l + stw r4, IM_PSDMR@l(r3) + stb r0, 0(0) + stb r0, 0(0) + stb r0, 0(0) + stb r0, 0(0) + stb r0, 0(0) + stb r0, 0(0) + stb r0, 0(0) + stb r0, 0(0) + /* write Mode Register Write command */ + lis r4, (CONFIG_SYS_PSDMR|PSDMR_OP_MRW)@h + ori r4, r4, (CONFIG_SYS_PSDMR|PSDMR_OP_MRW)@l + stw r4, IM_PSDMR@l(r3) + stb r0, 0(0) + /* write Normal Operation command and enable Refresh */ + lis r4, (CONFIG_SYS_PSDMR|PSDMR_OP_NORM|PSDMR_RFEN)@h + ori r4, r4, (CONFIG_SYS_PSDMR|PSDMR_OP_NORM|PSDMR_RFEN)@l + stw r4, IM_PSDMR@l(r3) + stb r0, 0(0) + /* RAM should now be operational */ + +#define VEC_WRD_CNT ((_end_of_vectors - _start + EXC_OFF_SYS_RESET) / 4) + mflr r3 + GET_GOT + mtlr r3 + lwz r3, GOT(_end_of_vectors) + rlwinm r4, r3, 0, 18, 31 /* _end_of_vectors & 0x3FFF */ + lis r5, VEC_WRD_CNT@h + ori r5, r5, VEC_WRD_CNT@l + mtctr r5 +1: + lwzu r5, -4(r3) + stwu r5, -4(r4) + bdnz 1b + + /* Load the Instruction Address Breakpoint Register (IABR). */ + /* */ + /* The address to load is stored in the first word of dual port */ + /* ram and should be preserved while the power is on, so you */ + /* can plug addresses into that location then reset the cpu and */ + /* this code will load that address into the IABR after the */ + /* reset. */ + /* */ + /* When the program counter matches the contents of the IABR, */ + /* an exception is generated (before the instruction at that */ + /* location completes). The vector for this exception is 0x1300 */ + /*--------------------------------------------------------------*/ + lis r3, CONFIG_SYS_IMMR@h + lwz r3, 0(r3) + mtspr IABR, r3 + + /* Set the entire dual port RAM (where the initial stack */ + /* resides) to a known value - makes it easier to see where */ + /* the stack has been written */ + /*--------------------------------------------------------------*/ + lis r3, (CONFIG_SYS_IMMR + CONFIG_SYS_INIT_SP_OFFSET)@h + ori r3, r3, (CONFIG_SYS_IMMR + CONFIG_SYS_INIT_SP_OFFSET)@l + li r4, ((CONFIG_SYS_INIT_SP_OFFSET - 4) / 4) + mtctr r4 + lis r4, 0xdeadbeaf@h + ori r4, r4, 0xdeadbeaf@l +1: + stwu r4, -4(r3) + bdnz 1b + + /* Done! */ + /*--------------------------------------------------------------*/ + + blr +#endif + +/* Cache functions. + * + * Note: requires that all cache bits in + * HID0 are in the low half word. + */ + .globl icache_enable +icache_enable: + mfspr r3, HID0 + ori r3, r3, HID0_ICE + lis r4, 0 + ori r4, r4, HID0_ILOCK + andc r3, r3, r4 + ori r4, r3, HID0_ICFI + isync + mtspr HID0, r4 /* sets enable and invalidate, clears lock */ + isync + mtspr HID0, r3 /* clears invalidate */ + blr + + .globl icache_disable +icache_disable: + mfspr r3, HID0 + lis r4, 0 + ori r4, r4, HID0_ICE|HID0_ILOCK + andc r3, r3, r4 + ori r4, r3, HID0_ICFI + isync + mtspr HID0, r4 /* sets invalidate, clears enable and lock */ + isync + mtspr HID0, r3 /* clears invalidate */ + blr + + .globl icache_status +icache_status: + mfspr r3, HID0 + rlwinm r3, r3, HID0_ICE_BITPOS + 1, 31, 31 + blr + + .globl dcache_enable +dcache_enable: + mfspr r3, HID0 + ori r3, r3, HID0_DCE + lis r4, 0 + ori r4, r4, HID0_DLOCK + andc r3, r3, r4 + ori r4, r3, HID0_DCI + sync + mtspr HID0, r4 /* sets enable and invalidate, clears lock */ + sync + mtspr HID0, r3 /* clears invalidate */ + blr + + .globl dcache_disable +dcache_disable: + mfspr r3, HID0 + lis r4, 0 + ori r4, r4, HID0_DCE|HID0_DLOCK + andc r3, r3, r4 + ori r4, r3, HID0_DCI + sync + mtspr HID0, r4 /* sets invalidate, clears enable and lock */ + sync + mtspr HID0, r3 /* clears invalidate */ + blr + + .globl dcache_status +dcache_status: + mfspr r3, HID0 + rlwinm r3, r3, HID0_DCE_BITPOS + 1, 31, 31 + blr + + .globl get_pvr +get_pvr: + mfspr r3, PVR + blr + +/*------------------------------------------------------------------------------*/ + +/* + * void relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * r3 = dest + * r4 = src + * r5 = length in bytes + * r6 = cachelinesize + */ + .globl relocate_code +relocate_code: + mr r1, r3 /* Set new stack pointer */ + mr r9, r4 /* Save copy of Global Data pointer */ + mr r10, r5 /* Save copy of Destination Address */ + + GET_GOT + mr r3, r5 /* Destination Address */ + lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ + ori r4, r4, CONFIG_SYS_MONITOR_BASE@l + lwz r5, GOT(__init_end) + sub r5, r5, r4 + li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */ + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address + * + * Offset: + */ + sub r15, r10, r4 + + /* First our own GOT */ + add r12, r12, r15 + /* then the one used by the C code */ + add r30, r30, r15 + + /* + * Now relocate code + */ + + cmplw cr1,r3,r4 + addi r0,r5,3 + srwi. r0,r0,2 + beq cr1,4f /* In place copy is not necessary */ + beq 7f /* Protect against 0 count */ + mtctr r0 + bge cr1,2f + + la r8,-4(r4) + la r7,-4(r3) +1: lwzu r0,4(r8) + stwu r0,4(r7) + bdnz 1b + b 4f + +2: slwi r0,r0,2 + add r8,r4,r0 + add r7,r3,r0 +3: lwzu r0,-4(r8) + stwu r0,-4(r7) + bdnz 3b + +/* + * Now flush the cache: note that we must start from a cache aligned + * address. Otherwise we might miss one cache line. + */ +4: cmpwi r6,0 + add r5,r3,r5 + beq 7f /* Always flush prefetch queue in any case */ + subi r0,r6,1 + andc r3,r3,r0 + mfspr r7,HID0 /* don't do dcbst if dcache is disabled */ + rlwinm r7,r7,HID0_DCE_BITPOS+1,31,31 + cmpwi r7,0 + beq 9f + mr r4,r3 +5: dcbst 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 5b + sync /* Wait for all dcbst to complete on bus */ +9: mfspr r7,HID0 /* don't do icbi if icache is disabled */ + rlwinm r7,r7,HID0_ICE_BITPOS+1,31,31 + cmpwi r7,0 + beq 7f + mr r4,r3 +6: icbi 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 6b +7: sync /* Wait for all icbi to complete on bus */ + isync + +/* + * We are done. Do not return, instead branch to second part of board + * initialization, now running from RAM. + */ + + addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET + mtlr r0 + blr + +in_ram: + + /* + * Relocation Function, r12 point to got2+0x8000 + * + * Adjust got2 pointers, no need to check for 0, this code + * already puts a few entries in the table. + */ + li r0,__got2_entries@sectoff@l + la r3,GOT(_GOT2_TABLE_) + lwz r11,GOT(_GOT2_TABLE_) + mtctr r0 + sub r11,r3,r11 + addi r3,r3,-4 +1: lwzu r0,4(r3) + cmpwi r0,0 + beq- 2f + add r0,r0,r11 + stw r0,0(r3) +2: bdnz 1b + + /* + * Now adjust the fixups and the pointers to the fixups + * in case we need to move ourselves again. + */ + li r0,__fixup_entries@sectoff@l + lwz r3,GOT(_FIXUP_TABLE_) + cmpwi r0,0 + mtctr r0 + addi r3,r3,-4 + beq 4f +3: lwzu r4,4(r3) + lwzux r0,r4,r11 + add r0,r0,r11 + stw r10,0(r3) + stw r0,0(r4) + bdnz 3b +4: +clear_bss: + /* + * Now clear BSS segment + */ + lwz r3,GOT(__bss_start) +#if defined(CONFIG_HYMOD) + /* + * For HYMOD - the environment is the very last item in flash. + * The real .bss stops just before environment starts, so only + * clear up to that point. + * + * taken from mods for FADS board + */ + lwz r4,GOT(environment) +#else + lwz r4,GOT(_end) +#endif + + cmplw 0, r3, r4 + beq 6f + + li r0, 0 +5: + stw r0, 0(r3) + addi r3, r3, 4 + cmplw 0, r3, r4 + bne 5b +6: + + mr r3, r9 /* Global Data pointer */ + mr r4, r10 /* Destination Address */ + bl board_init_r + + /* + * Copy exception vector code to low memory + * + * r3: dest_addr + * r7: source address, r8: end address, r9: target address + */ + .globl trap_init +trap_init: + mflr r4 /* save link register */ + GET_GOT + lwz r7, GOT(_start) + lwz r8, GOT(_end_of_vectors) + + li r9, 0x100 /* reset vector always at 0x100 */ + + cmplw 0, r7, r8 + bgelr /* return if r7>=r8 - just in case */ +1: + lwz r0, 0(r7) + stw r0, 0(r9) + addi r7, r7, 4 + addi r9, r9, 4 + cmplw 0, r7, r8 + bne 1b + + /* + * relocate `hdlr' and `int_return' entries + */ + li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET + li r8, Alignment - _start + EXC_OFF_SYS_RESET +2: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 2b + + li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET + li r8, SystemCall - _start + EXC_OFF_SYS_RESET +3: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 3b + + li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET + li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET +4: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 4b + + mfmsr r3 /* now that the vectors have */ + lis r7, MSR_IP@h /* relocated into low memory */ + ori r7, r7, MSR_IP@l /* MSR[IP] can be turned off */ + andc r3, r3, r7 /* (if it was on) */ + SYNC /* Some chip revs need this... */ + mtmsr r3 + SYNC + + mtlr r4 /* restore link register */ + blr diff --git a/arch/ppc/cpu/mpc8260/traps.c b/arch/ppc/cpu/mpc8260/traps.c new file mode 100644 index 0000000..d216f71 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/traps.c @@ -0,0 +1,273 @@ +/* + * linux/arch/ppc/kernel/traps.c + * + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * Modified by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras (paulus@cs.anu.edu.au) + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * This file handles the architecture-dependent parts of hardware exceptions + */ + +#include <common.h> +#include <command.h> +#include <kgdb.h> +#include <asm/processor.h> +#include <asm/m8260_pci.h> + +/* Returns 0 if exception not found and fixup otherwise. */ +extern unsigned long search_exception_table(unsigned long); + +/* THIS NEEDS CHANGING to use the board info structure. +*/ +#define END_OF_MEM 0x02000000 + +/* + * Trap & Exception support + */ + +void +print_backtrace(unsigned long *sp) +{ + int cnt = 0; + unsigned long i; + + puts ("Call backtrace: "); + while (sp) { + if ((uint)sp > END_OF_MEM) + break; + + i = sp[1]; + if (cnt++ % 7 == 0) + putc ('\n'); + printf("%08lX ", i); + if (cnt > 32) break; + sp = (unsigned long *)*sp; + } + putc ('\n'); +} + +void show_regs(struct pt_regs * regs) +{ + int i; + + printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n", + regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); + printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n", + regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0, + regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0, + regs->msr&MSR_IR ? 1 : 0, + regs->msr&MSR_DR ? 1 : 0); + + putc ('\n'); + for (i = 0; i < 32; i++) { + if ((i % 8) == 0) { + printf("GPR%02d: ", i); + } + + printf("%08lX ", regs->gpr[i]); + if ((i % 8) == 7) { + putc ('\n'); + } + } +} + + +void +_exception(int signr, struct pt_regs *regs) +{ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Exception in kernel pc %lx signal %d",regs->nip,signr); +} + +#ifdef CONFIG_PCI +void dump_pci (void) +{ + + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + + printf ("PCI: err status %x err mask %x err ctrl %x\n", + le32_to_cpu (immap->im_pci.pci_esr), + le32_to_cpu (immap->im_pci.pci_emr), + le32_to_cpu (immap->im_pci.pci_ecr)); + printf (" error address %x error data %x ctrl %x\n", + le32_to_cpu (immap->im_pci.pci_eacr), + le32_to_cpu (immap->im_pci.pci_edcr), + le32_to_cpu (immap->im_pci.pci_eccr)); + +} +#endif + +void +MachineCheckException(struct pt_regs *regs) +{ + unsigned long fixup; + + /* Probing PCI using config cycles cause this exception + * when a device is not present. Catch it and return to + * the PCI exception handler. + */ +#ifdef CONFIG_PCI + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; +#ifdef DEBUG + dump_pci(); +#endif + /* clear the error in the error status register */ + if(immap->im_pci.pci_esr & cpu_to_le32(PCI_ERROR_PCI_NO_RSP)) { + immap->im_pci.pci_esr = cpu_to_le32(PCI_ERROR_PCI_NO_RSP); + return; + } +#endif + if ((fixup = search_exception_table(regs->nip)) != 0) { + regs->nip = fixup; + return; + } + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + puts ("Machine check in kernel mode.\n" + "Caused by (from msr): "); + printf("regs %p ",regs); + switch( regs->msr & 0x000F0000) { + case (0x80000000>>12): + puts ("Machine check signal - probably due to mm fault\n" + "with mmu off\n"); + break; + case (0x80000000>>13): + puts ("Transfer error ack signal\n"); + break; + case (0x80000000>>14): + puts ("Data parity signal\n"); + break; + case (0x80000000>>15): + puts ("Address parity signal\n"); + break; + default: + puts ("Unknown values in msr\n"); + } + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); +#ifdef CONFIG_PCI + dump_pci(); +#endif + panic("machine check"); +} + +void +AlignmentException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Alignment Exception"); +} + +void +ProgramCheckException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Program Check Exception"); +} + +void +SoftEmuException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Software Emulation Exception"); +} + + +void +UnknownException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", + regs->nip, regs->msr, regs->trap); + _exception(0, regs); +} + +#if defined(CONFIG_CMD_BEDBUG) +extern void do_bedbug_breakpoint(struct pt_regs *); +#endif + +void +DebugException(struct pt_regs *regs) +{ + + printf("Debugger trap at @ %lx\n", regs->nip ); + show_regs(regs); +#if defined(CONFIG_CMD_BEDBUG) + do_bedbug_breakpoint( regs ); +#endif +} + +/* Probe an address by reading. If not present, return -1, otherwise + * return 0. + */ +int +addr_probe(uint *addr) +{ +#if 0 + int retval; + + __asm__ __volatile__( \ + "1: lwz %0,0(%1)\n" \ + " eieio\n" \ + " li %0,0\n" \ + "2:\n" \ + ".section .fixup,\"ax\"\n" \ + "3: li %0,-1\n" \ + " b 2b\n" \ + ".section __ex_table,\"a\"\n" \ + " .align 2\n" \ + " .long 1b,3b\n" \ + ".text" \ + : "=r" (retval) : "r"(addr)); + + return (retval); +#endif + return 0; +} diff --git a/arch/ppc/cpu/mpc8260/u-boot.lds b/arch/ppc/cpu/mpc8260/u-boot.lds new file mode 100644 index 0000000..9887844 --- /dev/null +++ b/arch/ppc/cpu/mpc8260/u-boot.lds @@ -0,0 +1,122 @@ +/* + * (C) Copyright 2001-2007 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_ARCH(powerpc) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + arch/ppc/cpu/mpc8260/start.o (.text) + *(.text) + *(.got1) + . = ALIGN(16); + *(.eh_frame) + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x0FFF) & 0xFFFFF000; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(4096); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(4096); + __init_end = .; + + __bss_start = .; + .bss (NOLOAD) : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + . = ALIGN(4); + } + _end = . ; + PROVIDE (end = .); +} diff --git a/arch/ppc/cpu/mpc83xx/Makefile b/arch/ppc/cpu/mpc83xx/Makefile new file mode 100644 index 0000000..15e2c18 --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/Makefile @@ -0,0 +1,62 @@ +# +# (C) Copyright 2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# Copyright 2004 Freescale Semiconductor, Inc. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).a + +START = start.o + +COBJS-y += traps.o +COBJS-y += cpu.o +COBJS-y += cpu_init.o +COBJS-y += speed.o +COBJS-y += interrupts.o +COBJS-y += spd_sdram.o +COBJS-y += ecc.o +COBJS-$(CONFIG_QE) += qe_io.o +COBJS-$(CONFIG_FSL_SERDES) += serdes.o +COBJS-$(CONFIG_PCI) += pci.o +COBJS-$(CONFIG_PCIE) += pcie.o +COBJS-$(CONFIG_OF_LIBFDT) += fdt.o + +COBJS := $(COBJS-y) +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/ppc/cpu/mpc83xx/config.mk b/arch/ppc/cpu/mpc83xx/config.mk new file mode 100644 index 0000000..8596f6a --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/config.mk @@ -0,0 +1,29 @@ +# +# Copyright 2004 Freescale Semiconductor, Inc. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +PLATFORM_RELFLAGS += -fPIC -meabi + +PLATFORM_CPPFLAGS += -DCONFIG_MPC83xx -DCONFIG_E300 \ + -ffixed-r2 -msoft-float + +# Use default linker script. Board port can override in board/*/config.mk +LDSCRIPT := $(SRCTREE)/arch/ppc/cpu/mpc83xx/u-boot.lds diff --git a/arch/ppc/cpu/mpc83xx/cpu.c b/arch/ppc/cpu/mpc83xx/cpu.c new file mode 100644 index 0000000..51180d6 --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/cpu.c @@ -0,0 +1,334 @@ +/* + * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * CPU specific code for the MPC83xx family. + * + * Derived from the MPC8260 and MPC85xx. + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <mpc83xx.h> +#include <asm/processor.h> +#include <libfdt.h> +#include <tsec.h> +#include <netdev.h> +#include <fsl_esdhc.h> +#ifdef CONFIG_BOOTCOUNT_LIMIT +#include <asm/immap_qe.h> +#include <asm/io.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +int checkcpu(void) +{ + volatile immap_t *immr; + ulong clock = gd->cpu_clk; + u32 pvr = get_pvr(); + u32 spridr; + char buf[32]; + int i; + + const struct cpu_type { + char name[15]; + u32 partid; + } cpu_type_list [] = { + CPU_TYPE_ENTRY(8311), + CPU_TYPE_ENTRY(8313), + CPU_TYPE_ENTRY(8314), + CPU_TYPE_ENTRY(8315), + CPU_TYPE_ENTRY(8321), + CPU_TYPE_ENTRY(8323), + CPU_TYPE_ENTRY(8343), + CPU_TYPE_ENTRY(8347_TBGA_), + CPU_TYPE_ENTRY(8347_PBGA_), + CPU_TYPE_ENTRY(8349), + CPU_TYPE_ENTRY(8358_TBGA_), + CPU_TYPE_ENTRY(8358_PBGA_), + CPU_TYPE_ENTRY(8360), + CPU_TYPE_ENTRY(8377), + CPU_TYPE_ENTRY(8378), + CPU_TYPE_ENTRY(8379), + }; + + immr = (immap_t *)CONFIG_SYS_IMMR; + + puts("CPU: "); + + switch (pvr & 0xffff0000) { + case PVR_E300C1: + printf("e300c1, "); + break; + + case PVR_E300C2: + printf("e300c2, "); + break; + + case PVR_E300C3: + printf("e300c3, "); + break; + + case PVR_E300C4: + printf("e300c4, "); + break; + + default: + printf("Unknown core, "); + } + + spridr = immr->sysconf.spridr; + + for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) + if (cpu_type_list[i].partid == PARTID_NO_E(spridr)) { + puts("MPC"); + puts(cpu_type_list[i].name); + if (IS_E_PROCESSOR(spridr)) + puts("E"); + if (REVID_MAJOR(spridr) >= 2) + puts("A"); + printf(", Rev: %d.%d", REVID_MAJOR(spridr), + REVID_MINOR(spridr)); + break; + } + + if (i == ARRAY_SIZE(cpu_type_list)) + printf("(SPRIDR %08x unknown), ", spridr); + + printf(" at %s MHz, ", strmhz(buf, clock)); + + printf("CSB: %s MHz\n", strmhz(buf, gd->csb_clk)); + + return 0; +} + + +/* + * Program a UPM with the code supplied in the table. + * + * The 'dummy' variable is used to increment the MAD. 'dummy' is + * supposed to be a pointer to the memory of the device being + * programmed by the UPM. The data in the MDR is written into + * memory and the MAD is incremented every time there's a write + * to 'dummy'. Unfortunately, the current prototype for this + * function doesn't allow for passing the address of this + * device, and changing the prototype will break a number lots + * of other code, so we need to use a round-about way of finding + * the value for 'dummy'. + * + * The value can be extracted from the base address bits of the + * Base Register (BR) associated with the specific UPM. To find + * that BR, we need to scan all 8 BRs until we find the one that + * has its MSEL bits matching the UPM we want. Once we know the + * right BR, we can extract the base address bits from it. + * + * The MxMR and the BR and OR of the chosen bank should all be + * configured before calling this function. + * + * Parameters: + * upm: 0=UPMA, 1=UPMB, 2=UPMC + * table: Pointer to an array of values to program + * size: Number of elements in the array. Must be 64 or less. + */ +void upmconfig (uint upm, uint *table, uint size) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + volatile fsl_lbus_t *lbus = &immap->lbus; + volatile uchar *dummy = NULL; + const u32 msel = (upm + 4) << BR_MSEL_SHIFT; /* What the MSEL field in BRn should be */ + volatile u32 *mxmr = &lbus->mamr + upm; /* Pointer to mamr, mbmr, or mcmr */ + uint i; + + /* Scan all the banks to determine the base address of the device */ + for (i = 0; i < 8; i++) { + if ((lbus->bank[i].br & BR_MSEL) == msel) { + dummy = (uchar *) (lbus->bank[i].br & BR_BA); + break; + } + } + + if (!dummy) { + printf("Error: %s() could not find matching BR\n", __FUNCTION__); + hang(); + } + + /* Set the OP field in the MxMR to "write" and the MAD field to 000000 */ + *mxmr = (*mxmr & 0xCFFFFFC0) | 0x10000000; + + for (i = 0; i < size; i++) { + lbus->mdr = table[i]; + __asm__ __volatile__ ("sync"); + *dummy = 0; /* Write the value to memory and increment MAD */ + __asm__ __volatile__ ("sync"); + while(((*mxmr & 0x3f) != ((i + 1) & 0x3f))); + } + + /* Set the OP field in the MxMR to "normal" and the MAD field to 000000 */ + *mxmr &= 0xCFFFFFC0; +} + + +int +do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + ulong msr; +#ifndef MPC83xx_RESET + ulong addr; +#endif + + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + + puts("Resetting the board.\n"); + +#ifdef MPC83xx_RESET + + /* Interrupts and MMU off */ + __asm__ __volatile__ ("mfmsr %0":"=r" (msr):); + + msr &= ~( MSR_EE | MSR_IR | MSR_DR); + __asm__ __volatile__ ("mtmsr %0"::"r" (msr)); + + /* enable Reset Control Reg */ + immap->reset.rpr = 0x52535445; + __asm__ __volatile__ ("sync"); + __asm__ __volatile__ ("isync"); + + /* confirm Reset Control Reg is enabled */ + while(!((immap->reset.rcer) & RCER_CRE)); + + udelay(200); + + /* perform reset, only one bit */ + immap->reset.rcr = RCR_SWHR; + +#else /* ! MPC83xx_RESET */ + + immap->reset.rmr = RMR_CSRE; /* Checkstop Reset enable */ + + /* Interrupts and MMU off */ + __asm__ __volatile__ ("mfmsr %0":"=r" (msr):); + + msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR); + __asm__ __volatile__ ("mtmsr %0"::"r" (msr)); + + /* + * Trying to execute the next instruction at a non-existing address + * should cause a machine check, resulting in reset + */ + addr = CONFIG_SYS_RESET_ADDRESS; + + ((void (*)(void)) addr) (); +#endif /* MPC83xx_RESET */ + + return 1; +} + + +/* + * Get timebase clock frequency (like cpu_clk in Hz) + */ + +unsigned long get_tbclk(void) +{ + ulong tbclk; + + tbclk = (gd->bus_clk + 3L) / 4L; + + return tbclk; +} + + +#if defined(CONFIG_WATCHDOG) +void watchdog_reset (void) +{ + int re_enable = disable_interrupts(); + + /* Reset the 83xx watchdog */ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + immr->wdt.swsrr = 0x556c; + immr->wdt.swsrr = 0xaa39; + + if (re_enable) + enable_interrupts (); +} +#endif + +/* + * Initializes on-chip ethernet controllers. + * to override, implement board_eth_init() + */ +int cpu_eth_init(bd_t *bis) +{ +#if defined(CONFIG_UEC_ETH) + uec_standard_init(bis); +#endif + +#if defined(CONFIG_TSEC_ENET) + tsec_standard_init(bis); +#endif + return 0; +} + +/* + * Initializes on-chip MMC controllers. + * to override, implement board_mmc_init() + */ +int cpu_mmc_init(bd_t *bis) +{ +#ifdef CONFIG_FSL_ESDHC + return fsl_esdhc_mmc_init(bis); +#else + return 0; +#endif +} + +#ifdef CONFIG_BOOTCOUNT_LIMIT + +#if !defined(CONFIG_MPC8360) +#error "CONFIG_BOOTCOUNT_LIMIT only for MPC8360 implemented" +#endif + +#if !defined(CONFIG_BOOTCOUNT_ADDR) +#define CONFIG_BOOTCOUNT_ADDR (0x110000 + QE_MURAM_SIZE - 2 * sizeof(unsigned long)) +#endif + +#include <asm/io.h> + +void bootcount_store (ulong a) +{ + void *reg = (void *)(CONFIG_SYS_IMMR + CONFIG_BOOTCOUNT_ADDR); + out_be32 (reg, a); + out_be32 (reg + 4, BOOTCOUNT_MAGIC); +} + +ulong bootcount_load (void) +{ + void *reg = (void *)(CONFIG_SYS_IMMR + CONFIG_BOOTCOUNT_ADDR); + + if (in_be32 (reg + 4) != BOOTCOUNT_MAGIC) + return 0; + else + return in_be32 (reg); +} +#endif /* CONFIG_BOOTCOUNT_LIMIT */ diff --git a/arch/ppc/cpu/mpc83xx/cpu_init.c b/arch/ppc/cpu/mpc83xx/cpu_init.c new file mode 100644 index 0000000..75b4522 --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/cpu_init.c @@ -0,0 +1,548 @@ +/* + * Copyright (C) 2004-2009 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc83xx.h> +#include <ioports.h> +#include <asm/io.h> +#ifdef CONFIG_USB_EHCI_FSL +#include <usb/ehci-fsl.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_QE +extern qe_iop_conf_t qe_iop_conf_tab[]; +extern void qe_config_iopin(u8 port, u8 pin, int dir, + int open_drain, int assign); +extern void qe_init(uint qe_base); +extern void qe_reset(void); + +static void config_qe_ioports(void) +{ + u8 port, pin; + int dir, open_drain, assign; + int i; + + for (i = 0; qe_iop_conf_tab[i].assign != QE_IOP_TAB_END; i++) { + port = qe_iop_conf_tab[i].port; + pin = qe_iop_conf_tab[i].pin; + dir = qe_iop_conf_tab[i].dir; + open_drain = qe_iop_conf_tab[i].open_drain; + assign = qe_iop_conf_tab[i].assign; + qe_config_iopin(port, pin, dir, open_drain, assign); + } +} +#endif + +/* + * Breathe some life into the CPU... + * + * Set up the memory map, + * initialize a bunch of registers, + * initialize the UPM's + */ +void cpu_init_f (volatile immap_t * im) +{ + __be32 acr_mask = +#ifdef CONFIG_SYS_ACR_PIPE_DEP /* Arbiter pipeline depth */ + (ACR_PIPE_DEP << ACR_PIPE_DEP_SHIFT) | +#endif +#ifdef CONFIG_SYS_ACR_RPTCNT /* Arbiter repeat count */ + (ACR_RPTCNT << ACR_RPTCNT_SHIFT) | +#endif +#ifdef CONFIG_SYS_ACR_APARK /* Arbiter address parking mode */ + (ACR_APARK << ACR_APARK_SHIFT) | +#endif +#ifdef CONFIG_SYS_ACR_PARKM /* Arbiter parking master */ + (ACR_PARKM << ACR_PARKM_SHIFT) | +#endif + 0; + __be32 acr_val = +#ifdef CONFIG_SYS_ACR_PIPE_DEP /* Arbiter pipeline depth */ + (CONFIG_SYS_ACR_PIPE_DEP << ACR_PIPE_DEP_SHIFT) | +#endif +#ifdef CONFIG_SYS_ACR_RPTCNT /* Arbiter repeat count */ + (CONFIG_SYS_ACR_RPTCNT << ACR_RPTCNT_SHIFT) | +#endif +#ifdef CONFIG_SYS_ACR_APARK /* Arbiter address parking mode */ + (CONFIG_SYS_ACR_APARK << ACR_APARK_SHIFT) | +#endif +#ifdef CONFIG_SYS_ACR_PARKM /* Arbiter parking master */ + (CONFIG_SYS_ACR_PARKM << ACR_PARKM_SHIFT) | +#endif + 0; + __be32 spcr_mask = +#ifdef CONFIG_SYS_SPCR_OPT /* Optimize transactions between CSB and other dev */ + (SPCR_OPT << SPCR_OPT_SHIFT) | +#endif +#ifdef CONFIG_SYS_SPCR_TSECEP /* all eTSEC's Emergency priority */ + (SPCR_TSECEP << SPCR_TSECEP_SHIFT) | +#endif +#ifdef CONFIG_SYS_SPCR_TSEC1EP /* TSEC1 Emergency priority */ + (SPCR_TSEC1EP << SPCR_TSEC1EP_SHIFT) | +#endif +#ifdef CONFIG_SYS_SPCR_TSEC2EP /* TSEC2 Emergency priority */ + (SPCR_TSEC2EP << SPCR_TSEC2EP_SHIFT) | +#endif + 0; + __be32 spcr_val = +#ifdef CONFIG_SYS_SPCR_OPT + (CONFIG_SYS_SPCR_OPT << SPCR_OPT_SHIFT) | +#endif +#ifdef CONFIG_SYS_SPCR_TSECEP /* all eTSEC's Emergency priority */ + (CONFIG_SYS_SPCR_TSECEP << SPCR_TSECEP_SHIFT) | +#endif +#ifdef CONFIG_SYS_SPCR_TSEC1EP /* TSEC1 Emergency priority */ + (CONFIG_SYS_SPCR_TSEC1EP << SPCR_TSEC1EP_SHIFT) | +#endif +#ifdef CONFIG_SYS_SPCR_TSEC2EP /* TSEC2 Emergency priority */ + (CONFIG_SYS_SPCR_TSEC2EP << SPCR_TSEC2EP_SHIFT) | +#endif + 0; + __be32 sccr_mask = +#ifdef CONFIG_SYS_SCCR_ENCCM /* Encryption clock mode */ + (SCCR_ENCCM << SCCR_ENCCM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_PCICM /* PCI & DMA clock mode */ + (SCCR_PCICM << SCCR_PCICM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_TSECCM /* all TSEC's clock mode */ + (SCCR_TSECCM << SCCR_TSECCM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_TSEC1CM /* TSEC1 clock mode */ + (SCCR_TSEC1CM << SCCR_TSEC1CM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_TSEC2CM /* TSEC2 clock mode */ + (SCCR_TSEC2CM << SCCR_TSEC2CM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_TSEC1ON /* TSEC1 clock switch */ + (SCCR_TSEC1ON << SCCR_TSEC1ON_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_TSEC2ON /* TSEC2 clock switch */ + (SCCR_TSEC2ON << SCCR_TSEC2ON_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_USBMPHCM /* USB MPH clock mode */ + (SCCR_USBMPHCM << SCCR_USBMPHCM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_USBDRCM /* USB DR clock mode */ + (SCCR_USBDRCM << SCCR_USBDRCM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_SATACM /* SATA controller clock mode */ + (SCCR_SATACM << SCCR_SATACM_SHIFT) | +#endif + 0; + __be32 sccr_val = +#ifdef CONFIG_SYS_SCCR_ENCCM /* Encryption clock mode */ + (CONFIG_SYS_SCCR_ENCCM << SCCR_ENCCM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_PCICM /* PCI & DMA clock mode */ + (CONFIG_SYS_SCCR_PCICM << SCCR_PCICM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_TSECCM /* all TSEC's clock mode */ + (CONFIG_SYS_SCCR_TSECCM << SCCR_TSECCM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_TSEC1CM /* TSEC1 clock mode */ + (CONFIG_SYS_SCCR_TSEC1CM << SCCR_TSEC1CM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_TSEC2CM /* TSEC2 clock mode */ + (CONFIG_SYS_SCCR_TSEC2CM << SCCR_TSEC2CM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_TSEC1ON /* TSEC1 clock switch */ + (CONFIG_SYS_SCCR_TSEC1ON << SCCR_TSEC1ON_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_TSEC2ON /* TSEC2 clock switch */ + (CONFIG_SYS_SCCR_TSEC2ON << SCCR_TSEC2ON_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_USBMPHCM /* USB MPH clock mode */ + (CONFIG_SYS_SCCR_USBMPHCM << SCCR_USBMPHCM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_USBDRCM /* USB DR clock mode */ + (CONFIG_SYS_SCCR_USBDRCM << SCCR_USBDRCM_SHIFT) | +#endif +#ifdef CONFIG_SYS_SCCR_SATACM /* SATA controller clock mode */ + (CONFIG_SYS_SCCR_SATACM << SCCR_SATACM_SHIFT) | +#endif + 0; + __be32 lcrr_mask = +#ifdef CONFIG_SYS_LCRR_DBYP /* PLL bypass */ + LCRR_DBYP | +#endif +#ifdef CONFIG_SYS_LCRR_EADC /* external address delay */ + LCRR_EADC | +#endif +#ifdef CONFIG_SYS_LCRR_CLKDIV /* system clock divider */ + LCRR_CLKDIV | +#endif + 0; + __be32 lcrr_val = +#ifdef CONFIG_SYS_LCRR_DBYP /* PLL bypass */ + CONFIG_SYS_LCRR_DBYP | +#endif +#ifdef CONFIG_SYS_LCRR_EADC + CONFIG_SYS_LCRR_EADC | +#endif +#ifdef CONFIG_SYS_LCRR_CLKDIV /* system clock divider */ + CONFIG_SYS_LCRR_CLKDIV | +#endif + 0; + + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); + + /* Clear initial global data */ + memset ((void *) gd, 0, sizeof (gd_t)); + + /* system performance tweaking */ + clrsetbits_be32(&im->arbiter.acr, acr_mask, acr_val); + + clrsetbits_be32(&im->sysconf.spcr, spcr_mask, spcr_val); + + clrsetbits_be32(&im->clk.sccr, sccr_mask, sccr_val); + + /* RSR - Reset Status Register - clear all status (4.6.1.3) */ + gd->reset_status = __raw_readl(&im->reset.rsr); + __raw_writel(~(RSR_RES), &im->reset.rsr); + + /* AER - Arbiter Event Register - store status */ + gd->arbiter_event_attributes = __raw_readl(&im->arbiter.aeatr); + gd->arbiter_event_address = __raw_readl(&im->arbiter.aeadr); + + /* + * RMR - Reset Mode Register + * contains checkstop reset enable (4.6.1.4) + */ + __raw_writel(RMR_CSRE & (1<<RMR_CSRE_SHIFT), &im->reset.rmr); + + /* LCRR - Clock Ratio Register (10.3.1.16) + * write, read, and isync per MPC8379ERM rev.1 CLKDEV field description + */ + clrsetbits_be32(&im->lbus.lcrr, lcrr_mask, lcrr_val); + __raw_readl(&im->lbus.lcrr); + isync(); + + /* Enable Time Base & Decrementer ( so we will have udelay() )*/ + setbits_be32(&im->sysconf.spcr, SPCR_TBEN); + + /* System General Purpose Register */ +#ifdef CONFIG_SYS_SICRH +#if defined(CONFIG_MPC834x) || defined(CONFIG_MPC8313) + /* regarding to MPC34x manual rev.1 bits 28..29 must be preserved */ + __raw_writel((im->sysconf.sicrh & 0x0000000C) | CONFIG_SYS_SICRH, + &im->sysconf.sicrh); +#else + __raw_writel(CONFIG_SYS_SICRH, &im->sysconf.sicrh); +#endif +#endif +#ifdef CONFIG_SYS_SICRL + __raw_writel(CONFIG_SYS_SICRL, &im->sysconf.sicrl); +#endif +#ifdef CONFIG_SYS_DDRCDR /* DDR control driver register */ + __raw_writel(CONFIG_SYS_DDRCDR, &im->sysconf.ddrcdr); +#endif +#ifdef CONFIG_SYS_OBIR /* Output buffer impedance register */ + __raw_writel(CONFIG_SYS_OBIR, &im->sysconf.obir); +#endif + +#ifdef CONFIG_QE + /* Config QE ioports */ + config_qe_ioports(); +#endif + + /* + * Memory Controller: + */ + + /* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary + * addresses - these have to be modified later when FLASH size + * has been determined + */ + +#if defined(CONFIG_SYS_BR0_PRELIM) \ + && defined(CONFIG_SYS_OR0_PRELIM) \ + && defined(CONFIG_SYS_LBLAWBAR0_PRELIM) \ + && defined(CONFIG_SYS_LBLAWAR0_PRELIM) + im->lbus.bank[0].br = CONFIG_SYS_BR0_PRELIM; + im->lbus.bank[0].or = CONFIG_SYS_OR0_PRELIM; + im->sysconf.lblaw[0].bar = CONFIG_SYS_LBLAWBAR0_PRELIM; + im->sysconf.lblaw[0].ar = CONFIG_SYS_LBLAWAR0_PRELIM; +#else +#error CONFIG_SYS_BR0_PRELIM, CONFIG_SYS_OR0_PRELIM, CONFIG_SYS_LBLAWBAR0_PRELIM & CONFIG_SYS_LBLAWAR0_PRELIM must be defined +#endif + +#if defined(CONFIG_SYS_BR1_PRELIM) && defined(CONFIG_SYS_OR1_PRELIM) + im->lbus.bank[1].br = CONFIG_SYS_BR1_PRELIM; + im->lbus.bank[1].or = CONFIG_SYS_OR1_PRELIM; +#endif +#if defined(CONFIG_SYS_LBLAWBAR1_PRELIM) && defined(CONFIG_SYS_LBLAWAR1_PRELIM) + im->sysconf.lblaw[1].bar = CONFIG_SYS_LBLAWBAR1_PRELIM; + im->sysconf.lblaw[1].ar = CONFIG_SYS_LBLAWAR1_PRELIM; +#endif +#if defined(CONFIG_SYS_BR2_PRELIM) && defined(CONFIG_SYS_OR2_PRELIM) + im->lbus.bank[2].br = CONFIG_SYS_BR2_PRELIM; + im->lbus.bank[2].or = CONFIG_SYS_OR2_PRELIM; +#endif +#if defined(CONFIG_SYS_LBLAWBAR2_PRELIM) && defined(CONFIG_SYS_LBLAWAR2_PRELIM) + im->sysconf.lblaw[2].bar = CONFIG_SYS_LBLAWBAR2_PRELIM; + im->sysconf.lblaw[2].ar = CONFIG_SYS_LBLAWAR2_PRELIM; +#endif +#if defined(CONFIG_SYS_BR3_PRELIM) && defined(CONFIG_SYS_OR3_PRELIM) + im->lbus.bank[3].br = CONFIG_SYS_BR3_PRELIM; + im->lbus.bank[3].or = CONFIG_SYS_OR3_PRELIM; +#endif +#if defined(CONFIG_SYS_LBLAWBAR3_PRELIM) && defined(CONFIG_SYS_LBLAWAR3_PRELIM) + im->sysconf.lblaw[3].bar = CONFIG_SYS_LBLAWBAR3_PRELIM; + im->sysconf.lblaw[3].ar = CONFIG_SYS_LBLAWAR3_PRELIM; +#endif +#if defined(CONFIG_SYS_BR4_PRELIM) && defined(CONFIG_SYS_OR4_PRELIM) + im->lbus.bank[4].br = CONFIG_SYS_BR4_PRELIM; + im->lbus.bank[4].or = CONFIG_SYS_OR4_PRELIM; +#endif +#if defined(CONFIG_SYS_LBLAWBAR4_PRELIM) && defined(CONFIG_SYS_LBLAWAR4_PRELIM) + im->sysconf.lblaw[4].bar = CONFIG_SYS_LBLAWBAR4_PRELIM; + im->sysconf.lblaw[4].ar = CONFIG_SYS_LBLAWAR4_PRELIM; +#endif +#if defined(CONFIG_SYS_BR5_PRELIM) && defined(CONFIG_SYS_OR5_PRELIM) + im->lbus.bank[5].br = CONFIG_SYS_BR5_PRELIM; + im->lbus.bank[5].or = CONFIG_SYS_OR5_PRELIM; +#endif +#if defined(CONFIG_SYS_LBLAWBAR5_PRELIM) && defined(CONFIG_SYS_LBLAWAR5_PRELIM) + im->sysconf.lblaw[5].bar = CONFIG_SYS_LBLAWBAR5_PRELIM; + im->sysconf.lblaw[5].ar = CONFIG_SYS_LBLAWAR5_PRELIM; +#endif +#if defined(CONFIG_SYS_BR6_PRELIM) && defined(CONFIG_SYS_OR6_PRELIM) + im->lbus.bank[6].br = CONFIG_SYS_BR6_PRELIM; + im->lbus.bank[6].or = CONFIG_SYS_OR6_PRELIM; +#endif +#if defined(CONFIG_SYS_LBLAWBAR6_PRELIM) && defined(CONFIG_SYS_LBLAWAR6_PRELIM) + im->sysconf.lblaw[6].bar = CONFIG_SYS_LBLAWBAR6_PRELIM; + im->sysconf.lblaw[6].ar = CONFIG_SYS_LBLAWAR6_PRELIM; +#endif +#if defined(CONFIG_SYS_BR7_PRELIM) && defined(CONFIG_SYS_OR7_PRELIM) + im->lbus.bank[7].br = CONFIG_SYS_BR7_PRELIM; + im->lbus.bank[7].or = CONFIG_SYS_OR7_PRELIM; +#endif +#if defined(CONFIG_SYS_LBLAWBAR7_PRELIM) && defined(CONFIG_SYS_LBLAWAR7_PRELIM) + im->sysconf.lblaw[7].bar = CONFIG_SYS_LBLAWBAR7_PRELIM; + im->sysconf.lblaw[7].ar = CONFIG_SYS_LBLAWAR7_PRELIM; +#endif +#ifdef CONFIG_SYS_GPIO1_PRELIM + im->gpio[0].dat = CONFIG_SYS_GPIO1_DAT; + im->gpio[0].dir = CONFIG_SYS_GPIO1_DIR; +#endif +#ifdef CONFIG_SYS_GPIO2_PRELIM + im->gpio[1].dat = CONFIG_SYS_GPIO2_DAT; + im->gpio[1].dir = CONFIG_SYS_GPIO2_DIR; +#endif +#ifdef CONFIG_USB_EHCI_FSL +#ifndef CONFIG_MPC834x + uint32_t temp; + struct usb_ehci *ehci = (struct usb_ehci *)CONFIG_SYS_MPC8xxx_USB_ADDR; + + /* Configure interface. */ + setbits_be32(&ehci->control, REFSEL_16MHZ | UTMI_PHY_EN); + + /* Wait for clock to stabilize */ + do { + temp = __raw_readl(&ehci->control); + udelay(1000); + } while (!(temp & PHY_CLK_VALID)); +#endif +#endif +} + +int cpu_init_r (void) +{ +#ifdef CONFIG_QE + uint qe_base = CONFIG_SYS_IMMR + 0x00100000; /* QE immr base */ + + qe_init(qe_base); + qe_reset(); +#endif + return 0; +} + +/* + * Print out the bus arbiter event + */ +#if defined(CONFIG_DISPLAY_AER_FULL) +static int print_83xx_arb_event(int force) +{ + static char* event[] = { + "Address Time Out", + "Data Time Out", + "Address Only Transfer Type", + "External Control Word Transfer Type", + "Reserved Transfer Type", + "Transfer Error", + "reserved", + "reserved" + }; + static char* master[] = { + "e300 Core Data Transaction", + "reserved", + "e300 Core Instruction Fetch", + "reserved", + "TSEC1", + "TSEC2", + "USB MPH", + "USB DR", + "Encryption Core", + "I2C Boot Sequencer", + "JTAG", + "reserved", + "eSDHC", + "PCI1", + "PCI2", + "DMA", + "QUICC Engine 00", + "QUICC Engine 01", + "QUICC Engine 10", + "QUICC Engine 11", + "reserved", + "reserved", + "reserved", + "reserved", + "SATA1", + "SATA2", + "SATA3", + "SATA4", + "reserved", + "PCI Express 1", + "PCI Express 2", + "TDM-DMAC" + }; + static char *transfer[] = { + "Address-only, Clean Block", + "Address-only, lwarx reservation set", + "Single-beat or Burst write", + "reserved", + "Address-only, Flush Block", + "reserved", + "Burst write", + "reserved", + "Address-only, sync", + "Address-only, tlbsync", + "Single-beat or Burst read", + "Single-beat or Burst read", + "Address-only, Kill Block", + "Address-only, icbi", + "Burst read", + "reserved", + "Address-only, eieio", + "reserved", + "Single-beat write", + "reserved", + "ecowx - Illegal single-beat write", + "reserved", + "reserved", + "reserved", + "Address-only, TLB Invalidate", + "reserved", + "Single-beat or Burst read", + "reserved", + "eciwx - Illegal single-beat read", + "reserved", + "Burst read", + "reserved" + }; + + int etype = (gd->arbiter_event_attributes & AEATR_EVENT) + >> AEATR_EVENT_SHIFT; + int mstr_id = (gd->arbiter_event_attributes & AEATR_MSTR_ID) + >> AEATR_MSTR_ID_SHIFT; + int tbst = (gd->arbiter_event_attributes & AEATR_TBST) + >> AEATR_TBST_SHIFT; + int tsize = (gd->arbiter_event_attributes & AEATR_TSIZE) + >> AEATR_TSIZE_SHIFT; + int ttype = (gd->arbiter_event_attributes & AEATR_TTYPE) + >> AEATR_TTYPE_SHIFT; + + if (!force && !gd->arbiter_event_address) + return 0; + + puts("Arbiter Event Status:\n"); + printf(" Event Address: 0x%08lX\n", gd->arbiter_event_address); + printf(" Event Type: 0x%1x = %s\n", etype, event[etype]); + printf(" Master ID: 0x%02x = %s\n", mstr_id, master[mstr_id]); + printf(" Transfer Size: 0x%1x = %d bytes\n", (tbst<<3) | tsize, + tbst ? (tsize ? tsize : 8) : 16 + 8 * tsize); + printf(" Transfer Type: 0x%02x = %s\n", ttype, transfer[ttype]); + + return gd->arbiter_event_address; +} + +#elif defined(CONFIG_DISPLAY_AER_BRIEF) + +static int print_83xx_arb_event(int force) +{ + if (!force && !gd->arbiter_event_address) + return 0; + + printf("Arbiter Event Status: AEATR=0x%08lX, AEADR=0x%08lX\n", + gd->arbiter_event_attributes, gd->arbiter_event_address); + + return gd->arbiter_event_address; +} +#endif /* CONFIG_DISPLAY_AER_xxxx */ + +/* + * Figure out the cause of the reset + */ +int prt_83xx_rsr(void) +{ + static struct { + ulong mask; + char *desc; + } bits[] = { + { + RSR_SWSR, "Software Soft"}, { + RSR_SWHR, "Software Hard"}, { + RSR_JSRS, "JTAG Soft"}, { + RSR_CSHR, "Check Stop"}, { + RSR_SWRS, "Software Watchdog"}, { + RSR_BMRS, "Bus Monitor"}, { + RSR_SRS, "External/Internal Soft"}, { + RSR_HRS, "External/Internal Hard"} + }; + static int n = sizeof bits / sizeof bits[0]; + ulong rsr = gd->reset_status; + int i; + char *sep; + + puts("Reset Status:"); + + sep = " "; + for (i = 0; i < n; i++) + if (rsr & bits[i].mask) { + printf("%s%s", sep, bits[i].desc); + sep = ", "; + } + puts("\n"); + +#if defined(CONFIG_DISPLAY_AER_FULL) || defined(CONFIG_DISPLAY_AER_BRIEF) + print_83xx_arb_event(rsr & RSR_BMRS); +#endif + puts("\n"); + + return 0; +} diff --git a/arch/ppc/cpu/mpc83xx/ecc.c b/arch/ppc/cpu/mpc83xx/ecc.c new file mode 100644 index 0000000..f3942b4 --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/ecc.c @@ -0,0 +1,390 @@ +/* + * Copyright (C) 2007 Freescale Semiconductor, Inc. + * + * Dave Liu <daveliu@freescale.com> + * based on the contribution of Marian Balakowicz <m8@semihalf.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#include <common.h> +#include <mpc83xx.h> +#include <command.h> + +#if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD) +void ecc_print_status(void) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + volatile ddr83xx_t *ddr = &immap->ddr; + + printf("\nECC mode: %s\n\n", + (ddr->sdram_cfg & SDRAM_CFG_ECC_EN) ? "ON" : "OFF"); + + /* Interrupts */ + printf("Memory Error Interrupt Enable:\n"); + printf(" Multiple-Bit Error Interrupt Enable: %d\n", + (ddr->err_int_en & ECC_ERR_INT_EN_MBEE) ? 1 : 0); + printf(" Single-Bit Error Interrupt Enable: %d\n", + (ddr->err_int_en & ECC_ERR_INT_EN_SBEE) ? 1 : 0); + printf(" Memory Select Error Interrupt Enable: %d\n\n", + (ddr->err_int_en & ECC_ERR_INT_EN_MSEE) ? 1 : 0); + + /* Error disable */ + printf("Memory Error Disable:\n"); + printf(" Multiple-Bit Error Disable: %d\n", + (ddr->err_disable & ECC_ERROR_DISABLE_MBED) ? 1 : 0); + printf(" Sinle-Bit Error Disable: %d\n", + (ddr->err_disable & ECC_ERROR_DISABLE_SBED) ? 1 : 0); + printf(" Memory Select Error Disable: %d\n\n", + (ddr->err_disable & ECC_ERROR_DISABLE_MSED) ? 1 : 0); + + /* Error injection */ + printf("Memory Data Path Error Injection Mask High/Low: %08x %08x\n", + ddr->data_err_inject_hi, ddr->data_err_inject_lo); + + printf("Memory Data Path Error Injection Mask ECC:\n"); + printf(" ECC Mirror Byte: %d\n", + (ddr->ecc_err_inject & ECC_ERR_INJECT_EMB) ? 1 : 0); + printf(" ECC Injection Enable: %d\n", + (ddr->ecc_err_inject & ECC_ERR_INJECT_EIEN) ? 1 : 0); + printf(" ECC Error Injection Mask: 0x%02x\n\n", + ddr->ecc_err_inject & ECC_ERR_INJECT_EEIM); + + /* SBE counter/threshold */ + printf("Memory Single-Bit Error Management (0..255):\n"); + printf(" Single-Bit Error Threshold: %d\n", + (ddr->err_sbe & ECC_ERROR_MAN_SBET) >> ECC_ERROR_MAN_SBET_SHIFT); + printf(" Single-Bit Error Counter: %d\n\n", + (ddr->err_sbe & ECC_ERROR_MAN_SBEC) >> ECC_ERROR_MAN_SBEC_SHIFT); + + /* Error detect */ + printf("Memory Error Detect:\n"); + printf(" Multiple Memory Errors: %d\n", + (ddr->err_detect & ECC_ERROR_DETECT_MME) ? 1 : 0); + printf(" Multiple-Bit Error: %d\n", + (ddr->err_detect & ECC_ERROR_DETECT_MBE) ? 1 : 0); + printf(" Single-Bit Error: %d\n", + (ddr->err_detect & ECC_ERROR_DETECT_SBE) ? 1 : 0); + printf(" Memory Select Error: %d\n\n", + (ddr->err_detect & ECC_ERROR_DETECT_MSE) ? 1 : 0); + + /* Capture data */ + printf("Memory Error Address Capture: 0x%08x\n", ddr->capture_address); + printf("Memory Data Path Read Capture High/Low: %08x %08x\n", + ddr->capture_data_hi, ddr->capture_data_lo); + printf("Memory Data Path Read Capture ECC: 0x%02x\n\n", + ddr->capture_ecc & CAPTURE_ECC_ECE); + + printf("Memory Error Attributes Capture:\n"); + printf(" Data Beat Number: %d\n", + (ddr->capture_attributes & ECC_CAPT_ATTR_BNUM) >> + ECC_CAPT_ATTR_BNUM_SHIFT); + printf(" Transaction Size: %d\n", + (ddr->capture_attributes & ECC_CAPT_ATTR_TSIZ) >> + ECC_CAPT_ATTR_TSIZ_SHIFT); + printf(" Transaction Source: %d\n", + (ddr->capture_attributes & ECC_CAPT_ATTR_TSRC) >> + ECC_CAPT_ATTR_TSRC_SHIFT); + printf(" Transaction Type: %d\n", + (ddr->capture_attributes & ECC_CAPT_ATTR_TTYP) >> + ECC_CAPT_ATTR_TTYP_SHIFT); + printf(" Error Information Valid: %d\n\n", + ddr->capture_attributes & ECC_CAPT_ATTR_VLD); +} + +int do_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + volatile ddr83xx_t *ddr = &immap->ddr; + volatile u32 val; + u64 *addr; + u32 count; + register u64 *i; + u32 ret[2]; + u32 pattern[2]; + u32 writeback[2]; + + /* The pattern is written into memory to generate error */ + pattern[0] = 0xfedcba98UL; + pattern[1] = 0x76543210UL; + + /* After injecting error, re-initialize the memory with the value */ + writeback[0] = 0x01234567UL; + writeback[1] = 0x89abcdefUL; + + if (argc > 4) { + cmd_usage(cmdtp); + return 1; + } + + if (argc == 2) { + if (strcmp(argv[1], "status") == 0) { + ecc_print_status(); + return 0; + } else if (strcmp(argv[1], "captureclear") == 0) { + ddr->capture_address = 0; + ddr->capture_data_hi = 0; + ddr->capture_data_lo = 0; + ddr->capture_ecc = 0; + ddr->capture_attributes = 0; + return 0; + } + } + if (argc == 3) { + if (strcmp(argv[1], "sbecnt") == 0) { + val = simple_strtoul(argv[2], NULL, 10); + if (val > 255) { + printf("Incorrect Counter value, " + "should be 0..255\n"); + return 1; + } + + val = (val << ECC_ERROR_MAN_SBEC_SHIFT); + val |= (ddr->err_sbe & ECC_ERROR_MAN_SBET); + + ddr->err_sbe = val; + return 0; + } else if (strcmp(argv[1], "sbethr") == 0) { + val = simple_strtoul(argv[2], NULL, 10); + if (val > 255) { + printf("Incorrect Counter value, " + "should be 0..255\n"); + return 1; + } + + val = (val << ECC_ERROR_MAN_SBET_SHIFT); + val |= (ddr->err_sbe & ECC_ERROR_MAN_SBEC); + + ddr->err_sbe = val; + return 0; + } else if (strcmp(argv[1], "errdisable") == 0) { + val = ddr->err_disable; + + if (strcmp(argv[2], "+sbe") == 0) { + val |= ECC_ERROR_DISABLE_SBED; + } else if (strcmp(argv[2], "+mbe") == 0) { + val |= ECC_ERROR_DISABLE_MBED; + } else if (strcmp(argv[2], "+mse") == 0) { + val |= ECC_ERROR_DISABLE_MSED; + } else if (strcmp(argv[2], "+all") == 0) { + val |= (ECC_ERROR_DISABLE_SBED | + ECC_ERROR_DISABLE_MBED | + ECC_ERROR_DISABLE_MSED); + } else if (strcmp(argv[2], "-sbe") == 0) { + val &= ~ECC_ERROR_DISABLE_SBED; + } else if (strcmp(argv[2], "-mbe") == 0) { + val &= ~ECC_ERROR_DISABLE_MBED; + } else if (strcmp(argv[2], "-mse") == 0) { + val &= ~ECC_ERROR_DISABLE_MSED; + } else if (strcmp(argv[2], "-all") == 0) { + val &= ~(ECC_ERROR_DISABLE_SBED | + ECC_ERROR_DISABLE_MBED | + ECC_ERROR_DISABLE_MSED); + } else { + printf("Incorrect err_disable field\n"); + return 1; + } + + ddr->err_disable = val; + __asm__ __volatile__("sync"); + __asm__ __volatile__("isync"); + return 0; + } else if (strcmp(argv[1], "errdetectclr") == 0) { + val = ddr->err_detect; + + if (strcmp(argv[2], "mme") == 0) { + val |= ECC_ERROR_DETECT_MME; + } else if (strcmp(argv[2], "sbe") == 0) { + val |= ECC_ERROR_DETECT_SBE; + } else if (strcmp(argv[2], "mbe") == 0) { + val |= ECC_ERROR_DETECT_MBE; + } else if (strcmp(argv[2], "mse") == 0) { + val |= ECC_ERROR_DETECT_MSE; + } else if (strcmp(argv[2], "all") == 0) { + val |= (ECC_ERROR_DETECT_MME | + ECC_ERROR_DETECT_MBE | + ECC_ERROR_DETECT_SBE | + ECC_ERROR_DETECT_MSE); + } else { + printf("Incorrect err_detect field\n"); + return 1; + } + + ddr->err_detect = val; + return 0; + } else if (strcmp(argv[1], "injectdatahi") == 0) { + val = simple_strtoul(argv[2], NULL, 16); + + ddr->data_err_inject_hi = val; + return 0; + } else if (strcmp(argv[1], "injectdatalo") == 0) { + val = simple_strtoul(argv[2], NULL, 16); + + ddr->data_err_inject_lo = val; + return 0; + } else if (strcmp(argv[1], "injectecc") == 0) { + val = simple_strtoul(argv[2], NULL, 16); + if (val > 0xff) { + printf("Incorrect ECC inject mask, " + "should be 0x00..0xff\n"); + return 1; + } + val |= (ddr->ecc_err_inject & ~ECC_ERR_INJECT_EEIM); + + ddr->ecc_err_inject = val; + return 0; + } else if (strcmp(argv[1], "inject") == 0) { + val = ddr->ecc_err_inject; + + if (strcmp(argv[2], "en") == 0) + val |= ECC_ERR_INJECT_EIEN; + else if (strcmp(argv[2], "dis") == 0) + val &= ~ECC_ERR_INJECT_EIEN; + else + printf("Incorrect command\n"); + + ddr->ecc_err_inject = val; + __asm__ __volatile__("sync"); + __asm__ __volatile__("isync"); + return 0; + } else if (strcmp(argv[1], "mirror") == 0) { + val = ddr->ecc_err_inject; + + if (strcmp(argv[2], "en") == 0) + val |= ECC_ERR_INJECT_EMB; + else if (strcmp(argv[2], "dis") == 0) + val &= ~ECC_ERR_INJECT_EMB; + else + printf("Incorrect command\n"); + + ddr->ecc_err_inject = val; + return 0; + } + } + if (argc == 4) { + if (strcmp(argv[1], "testdw") == 0) { + addr = (u64 *) simple_strtoul(argv[2], NULL, 16); + count = simple_strtoul(argv[3], NULL, 16); + + if ((u32) addr % 8) { + printf("Address not alligned on " + "double word boundary\n"); + return 1; + } + disable_interrupts(); + + for (i = addr; i < addr + count; i++) { + + /* enable injects */ + ddr->ecc_err_inject |= ECC_ERR_INJECT_EIEN; + __asm__ __volatile__("sync"); + __asm__ __volatile__("isync"); + + /* write memory location injecting errors */ + ppcDWstore((u32 *) i, pattern); + __asm__ __volatile__("sync"); + + /* disable injects */ + ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN; + __asm__ __volatile__("sync"); + __asm__ __volatile__("isync"); + + /* read data, this generates ECC error */ + ppcDWload((u32 *) i, ret); + __asm__ __volatile__("sync"); + + /* re-initialize memory, double word write the location again, + * generates new ECC code this time */ + ppcDWstore((u32 *) i, writeback); + __asm__ __volatile__("sync"); + } + enable_interrupts(); + return 0; + } + if (strcmp(argv[1], "testword") == 0) { + addr = (u64 *) simple_strtoul(argv[2], NULL, 16); + count = simple_strtoul(argv[3], NULL, 16); + + if ((u32) addr % 8) { + printf("Address not alligned on " + "double word boundary\n"); + return 1; + } + disable_interrupts(); + + for (i = addr; i < addr + count; i++) { + + /* enable injects */ + ddr->ecc_err_inject |= ECC_ERR_INJECT_EIEN; + __asm__ __volatile__("sync"); + __asm__ __volatile__("isync"); + + /* write memory location injecting errors */ + *(u32 *) i = 0xfedcba98UL; + __asm__ __volatile__("sync"); + + /* sub double word write, + * bus will read-modify-write, + * generates ECC error */ + *((u32 *) i + 1) = 0x76543210UL; + __asm__ __volatile__("sync"); + + /* disable injects */ + ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN; + __asm__ __volatile__("sync"); + __asm__ __volatile__("isync"); + + /* re-initialize memory, + * double word write the location again, + * generates new ECC code this time */ + ppcDWstore((u32 *) i, writeback); + __asm__ __volatile__("sync"); + } + enable_interrupts(); + return 0; + } + } + cmd_usage(cmdtp); + return 1; +} + +U_BOOT_CMD(ecc, 4, 0, do_ecc, + "support for DDR ECC features", + "status - print out status info\n" + "ecc captureclear - clear capture regs data\n" + "ecc sbecnt <val> - set Single-Bit Error counter\n" + "ecc sbethr <val> - set Single-Bit Threshold\n" + "ecc errdisable <flag> - clear/set disable Memory Error Disable, flag:\n" + " [-|+]sbe - Single-Bit Error\n" + " [-|+]mbe - Multiple-Bit Error\n" + " [-|+]mse - Memory Select Error\n" + " [-|+]all - all errors\n" + "ecc errdetectclr <flag> - clear Memory Error Detect, flag:\n" + " mme - Multiple Memory Errors\n" + " sbe - Single-Bit Error\n" + " mbe - Multiple-Bit Error\n" + " mse - Memory Select Error\n" + " all - all errors\n" + "ecc injectdatahi <hi> - set Memory Data Path Error Injection Mask High\n" + "ecc injectdatalo <lo> - set Memory Data Path Error Injection Mask Low\n" + "ecc injectecc <ecc> - set ECC Error Injection Mask\n" + "ecc inject <en|dis> - enable/disable error injection\n" + "ecc mirror <en|dis> - enable/disable mirror byte\n" + "ecc testdw <addr> <cnt> - test mem region with double word access:\n" + " - enables injects\n" + " - writes pattern injecting errors with double word access\n" + " - disables injects\n" + " - reads pattern back with double word access, generates error\n" + " - re-inits memory\n" + "ecc testword <addr> <cnt> - test mem region with word access:\n" + " - enables injects\n" + " - writes pattern injecting errors with word access\n" + " - writes pattern with word access, generates error\n" + " - disables injects\n" " - re-inits memory"); +#endif diff --git a/arch/ppc/cpu/mpc83xx/fdt.c b/arch/ppc/cpu/mpc83xx/fdt.c new file mode 100644 index 0000000..daf73a6 --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/fdt.c @@ -0,0 +1,143 @@ +/* + * Copyright 2007 Freescale Semiconductor, Inc. + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <libfdt.h> +#include <fdt_support.h> +#include <asm/processor.h> + +extern void ft_qe_setup(void *blob); + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_BOOTCOUNT_LIMIT) && defined(CONFIG_MPC8360) +#include <asm/immap_qe.h> + +void fdt_fixup_muram (void *blob) +{ + ulong data[2]; + + data[0] = 0; + data[1] = QE_MURAM_SIZE - 2 * sizeof(unsigned long); + do_fixup_by_compat(blob, "fsl,qe-muram-data", "reg", + data, sizeof (data), 0); +} +#endif + +void ft_cpu_setup(void *blob, bd_t *bd) +{ + immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + int spridr = immr->sysconf.spridr; + + /* + * delete crypto node if not on an E-processor + * initial revisions of the MPC834xE/6xE have the original SEC 2.0. + * EA revisions got the SEC uprevved to 2.4 but since the default device + * tree contains SEC 2.0 properties we uprev them here. + */ + if (!IS_E_PROCESSOR(spridr)) + fdt_fixup_crypto_node(blob, 0); + else if (IS_E_PROCESSOR(spridr) && + (SPR_FAMILY(spridr) == SPR_834X_FAMILY || + SPR_FAMILY(spridr) == SPR_836X_FAMILY) && + REVID_MAJOR(spridr) >= 2) + fdt_fixup_crypto_node(blob, 0x0204); + +#if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) ||\ + defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3) ||\ + defined(CONFIG_HAS_ETH4) || defined(CONFIG_HAS_ETH5) + fdt_fixup_ethernet(blob); +#ifdef CONFIG_MPC8313 + /* + * mpc8313e erratum IPIC1 swapped TSEC interrupt ID numbers on rev. 1 + * h/w (see AN3545). The base device tree in use has rev. 1 ID numbers, + * so if on Rev. 2 (and higher) h/w, we fix them up here + */ + if (REVID_MAJOR(immr->sysconf.spridr) >= 2) { + int nodeoffset, path; + const char *prop; + + nodeoffset = fdt_path_offset(blob, "/aliases"); + if (nodeoffset >= 0) { +#if defined(CONFIG_HAS_ETH0) + prop = fdt_getprop(blob, nodeoffset, "ethernet0", NULL); + if (prop) { + u32 tmp[] = { 32, 0x8, 33, 0x8, 34, 0x8 }; + + path = fdt_path_offset(blob, prop); + prop = fdt_getprop(blob, path, "interrupts", 0); + if (prop) + fdt_setprop(blob, path, "interrupts", + &tmp, sizeof(tmp)); + } +#endif +#if defined(CONFIG_HAS_ETH1) + prop = fdt_getprop(blob, nodeoffset, "ethernet1", NULL); + if (prop) { + u32 tmp[] = { 35, 0x8, 36, 0x8, 37, 0x8 }; + + path = fdt_path_offset(blob, prop); + prop = fdt_getprop(blob, path, "interrupts", 0); + if (prop) + fdt_setprop(blob, path, "interrupts", + &tmp, sizeof(tmp)); + } +#endif + } + } +#endif +#endif + + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "timebase-frequency", (bd->bi_busfreq / 4), 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "bus-frequency", bd->bi_busfreq, 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "clock-frequency", gd->core_clk, 1); + do_fixup_by_prop_u32(blob, "device_type", "soc", 4, + "bus-frequency", bd->bi_busfreq, 1); + do_fixup_by_compat_u32(blob, "fsl,soc", + "bus-frequency", bd->bi_busfreq, 1); + do_fixup_by_compat_u32(blob, "fsl,soc", + "clock-frequency", bd->bi_busfreq, 1); + do_fixup_by_compat_u32(blob, "fsl,immr", + "bus-frequency", bd->bi_busfreq, 1); + do_fixup_by_compat_u32(blob, "fsl,immr", + "clock-frequency", bd->bi_busfreq, 1); +#ifdef CONFIG_QE + ft_qe_setup(blob); +#endif + +#ifdef CONFIG_SYS_NS16550 + do_fixup_by_compat_u32(blob, "ns16550", + "clock-frequency", CONFIG_SYS_NS16550_CLK, 1); +#endif + + fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize); + +#if defined(CONFIG_BOOTCOUNT_LIMIT) + fdt_fixup_muram (blob); +#endif +} diff --git a/arch/ppc/cpu/mpc83xx/interrupts.c b/arch/ppc/cpu/mpc83xx/interrupts.c new file mode 100644 index 0000000..faffbaf --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/interrupts.c @@ -0,0 +1,97 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright 2004 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <command.h> +#include <mpc83xx.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +struct irq_action { + interrupt_handler_t *handler; + void *arg; + ulong count; +}; + +int interrupt_init_cpu (unsigned *decrementer_count) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + + *decrementer_count = (gd->bus_clk / 4) / CONFIG_SYS_HZ; + + /* Enable e300 time base */ + + immr->sysconf.spcr |= 0x00400000; + + return 0; +} + + +/* + * Handle external interrupts + */ + +void external_interrupt (struct pt_regs *regs) +{ +} + + +/* + * Install and free an interrupt handler. + */ + +void +irq_install_handler (int irq, interrupt_handler_t * handler, void *arg) +{ +} + + +void irq_free_handler (int irq) +{ +} + + +void timer_interrupt_cpu (struct pt_regs *regs) +{ + /* nothing to do here */ + return; +} + + +#if defined(CONFIG_CMD_IRQ) + +/* ripped this out of ppc4xx/interrupts.c */ + +/* + * irqinfo - print information about PCI devices + */ + +void +do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) +{ +} + +#endif diff --git a/arch/ppc/cpu/mpc83xx/nand_init.c b/arch/ppc/cpu/mpc83xx/nand_init.c new file mode 100644 index 0000000..38e141a --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/nand_init.c @@ -0,0 +1,112 @@ +/* + * Copyright (C) 2004-2008 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc83xx.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Breathe some life into the CPU... + * + * Set up the memory map, + * initialize a bunch of registers, + * initialize the UPM's + */ +void cpu_init_f (volatile immap_t * im) +{ + int i; + + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); + + /* Clear initial global data */ + for (i = 0; i < sizeof(gd_t); i++) + ((char *)gd)[i] = 0; + + /* system performance tweaking */ + +#ifdef CONFIG_SYS_ACR_PIPE_DEP + /* Arbiter pipeline depth */ + im->arbiter.acr = (im->arbiter.acr & ~ACR_PIPE_DEP) | + (CONFIG_SYS_ACR_PIPE_DEP << ACR_PIPE_DEP_SHIFT); +#endif + +#ifdef CONFIG_SYS_ACR_RPTCNT + /* Arbiter repeat count */ + im->arbiter.acr = (im->arbiter.acr & ~(ACR_RPTCNT)) | + (CONFIG_SYS_ACR_RPTCNT << ACR_RPTCNT_SHIFT); +#endif + +#ifdef CONFIG_SYS_SPCR_OPT + /* Optimize transactions between CSB and other devices */ + im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_OPT) | + (CONFIG_SYS_SPCR_OPT << SPCR_OPT_SHIFT); +#endif + + /* Enable Time Base & Decrimenter (so we will have udelay()) */ + im->sysconf.spcr |= SPCR_TBEN; + + /* DDR control driver register */ +#ifdef CONFIG_SYS_DDRCDR + im->sysconf.ddrcdr = CONFIG_SYS_DDRCDR; +#endif + /* Output buffer impedance register */ +#ifdef CONFIG_SYS_OBIR + im->sysconf.obir = CONFIG_SYS_OBIR; +#endif + + /* + * Memory Controller: + */ + + /* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary + * addresses - these have to be modified later when FLASH size + * has been determined + */ + +#if defined(CONFIG_SYS_NAND_BR_PRELIM) \ + && defined(CONFIG_SYS_NAND_OR_PRELIM) \ + && defined(CONFIG_SYS_NAND_LBLAWBAR_PRELIM) \ + && defined(CONFIG_SYS_NAND_LBLAWAR_PRELIM) + im->lbus.bank[0].br = CONFIG_SYS_NAND_BR_PRELIM; + im->lbus.bank[0].or = CONFIG_SYS_NAND_OR_PRELIM; + im->sysconf.lblaw[0].bar = CONFIG_SYS_NAND_LBLAWBAR_PRELIM; + im->sysconf.lblaw[0].ar = CONFIG_SYS_NAND_LBLAWAR_PRELIM; +#else +#error CONFIG_SYS_NAND_BR_PRELIM, CONFIG_SYS_NAND_OR_PRELIM, CONFIG_SYS_NAND_LBLAWBAR_PRELIM & CONFIG_SYS_NAND_LBLAWAR_PRELIM must be defined +#endif +} + +/* + * Get timebase clock frequency (like cpu_clk in Hz) + */ +unsigned long get_tbclk(void) +{ + return (gd->bus_clk + 3L) / 4L; +} + +void puts(const char *str) +{ + while (*str) + putc(*str++); +} diff --git a/arch/ppc/cpu/mpc83xx/pci.c b/arch/ppc/cpu/mpc83xx/pci.c new file mode 100644 index 0000000..a42b230 --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/pci.c @@ -0,0 +1,241 @@ +/* + * Copyright (C) Freescale Semiconductor, Inc. 2007 + * + * Author: Scott Wood <scottwood@freescale.com>, + * with some bits from older board-specific PCI initialization. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <pci.h> + +#if defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#include <fdt_support.h> +#endif + +#include <asm/mpc8349_pci.h> + +#define MAX_BUSES 2 + +DECLARE_GLOBAL_DATA_PTR; + +static struct pci_controller pci_hose[MAX_BUSES]; +static int pci_num_buses; + +static void pci_init_bus(int bus, struct pci_region *reg) +{ + volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR; + volatile pot83xx_t *pot = immr->ios.pot; + volatile pcictrl83xx_t *pci_ctrl = &immr->pci_ctrl[bus]; + struct pci_controller *hose = &pci_hose[bus]; + u32 dev; + u16 reg16; + int i; + + if (bus == 1) + pot += 3; + + /* Setup outbound translation windows */ + for (i = 0; i < 3; i++, reg++, pot++) { + if (reg->size == 0) + break; + + hose->regions[i] = *reg; + hose->region_count++; + + pot->potar = reg->bus_start >> 12; + pot->pobar = reg->phys_start >> 12; + pot->pocmr = ~(reg->size - 1) >> 12; + + if (reg->flags & PCI_REGION_IO) + pot->pocmr |= POCMR_IO; +#ifdef CONFIG_83XX_PCI_STREAMING + else if (reg->flags & PCI_REGION_PREFETCH) + pot->pocmr |= POCMR_SE; +#endif + + if (bus == 1) + pot->pocmr |= POCMR_DST; + + pot->pocmr |= POCMR_EN; + } + + /* Point inbound translation at RAM */ + pci_ctrl->pitar1 = 0; + pci_ctrl->pibar1 = 0; + pci_ctrl->piebar1 = 0; + pci_ctrl->piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | + PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size - 1)); + + i = hose->region_count++; + hose->regions[i].bus_start = 0; + hose->regions[i].phys_start = 0; + hose->regions[i].size = gd->ram_size; + hose->regions[i].flags = PCI_REGION_MEM | PCI_REGION_SYS_MEMORY; + + hose->first_busno = pci_last_busno() + 1; + hose->last_busno = 0xff; + + pci_setup_indirect(hose, CONFIG_SYS_IMMR + 0x8300 + bus * 0x80, + CONFIG_SYS_IMMR + 0x8304 + bus * 0x80); + + pci_register_hose(hose); + + /* + * Write to Command register + */ + reg16 = 0xff; + dev = PCI_BDF(hose->first_busno, 0, 0); + pci_hose_read_config_word(hose, dev, PCI_COMMAND, ®16); + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16); + + /* + * Clear non-reserved bits in status register. + */ + pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff); + pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); + pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); + +#ifdef CONFIG_PCI_SCAN_SHOW + printf("PCI: Bus Dev VenId DevId Class Int\n"); +#endif +#ifndef CONFIG_PCISLAVE + /* + * Hose scan. + */ + hose->last_busno = pci_hose_scan(hose); +#endif +} + +/* + * The caller must have already set OCCR, and the PCI_LAW BARs + * must have been set to cover all of the requested regions. + * + * If fewer than three regions are requested, then the region + * list is terminated with a region of size 0. + */ +void mpc83xx_pci_init(int num_buses, struct pci_region **reg, int warmboot) +{ + volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR; + int i; + + if (num_buses > MAX_BUSES) { + printf("%d PCI buses requsted, %d supported\n", + num_buses, MAX_BUSES); + + num_buses = MAX_BUSES; + } + + pci_num_buses = num_buses; + + /* + * Release PCI RST Output signal. + * Power on to RST high must be at least 100 ms as per PCI spec. + * On warm boots only 1 ms is required. + */ + udelay(warmboot ? 1000 : 100000); + + for (i = 0; i < num_buses; i++) + immr->pci_ctrl[i].gcr = 1; + + /* + * RST high to first config access must be at least 2^25 cycles + * as per PCI spec. This could be cut in half if we know we're + * running at 66MHz. This could be insufficiently long if we're + * running the PCI bus at significantly less than 33MHz. + */ + udelay(1020000); + + for (i = 0; i < num_buses; i++) + pci_init_bus(i, reg[i]); +} + +#ifdef CONFIG_PCISLAVE + +#define PCI_FUNCTION_CONFIG 0x44 +#define PCI_FUNCTION_CFG_LOCK 0x20 + +/* + * Unlock the configuration bit so that the host system can begin booting + * + * This should be used after you have: + * 1) Called mpc83xx_pci_init() + * 2) Set up your inbound translation windows to the appropriate size + */ +void mpc83xx_pcislave_unlock(int bus) +{ + struct pci_controller *hose = &pci_hose[bus]; + u32 dev; + u16 reg16; + + /* Unlock configuration lock in PCI function configuration register */ + dev = PCI_BDF(hose->first_busno, 0, 0); + pci_hose_read_config_word (hose, dev, PCI_FUNCTION_CONFIG, ®16); + reg16 &= ~(PCI_FUNCTION_CFG_LOCK); + pci_hose_write_config_word (hose, dev, PCI_FUNCTION_CONFIG, reg16); + + /* The configuration bit is now unlocked, so we can scan the bus */ + hose->last_busno = pci_hose_scan(hose); +} +#endif + +#if defined(CONFIG_OF_LIBFDT) +void ft_pci_setup(void *blob, bd_t *bd) +{ + int nodeoffset; + int tmp[2]; + const char *path; + + if (pci_num_buses < 1) + return; + + nodeoffset = fdt_path_offset(blob, "/aliases"); + if (nodeoffset >= 0) { + path = fdt_getprop(blob, nodeoffset, "pci0", NULL); + if (path) { + tmp[0] = cpu_to_be32(pci_hose[0].first_busno); + tmp[1] = cpu_to_be32(pci_hose[0].last_busno); + do_fixup_by_path(blob, path, "bus-range", + &tmp, sizeof(tmp), 1); + + tmp[0] = cpu_to_be32(gd->pci_clk); + do_fixup_by_path(blob, path, "clock-frequency", + &tmp, sizeof(tmp[0]), 1); + } + + if (pci_num_buses < 2) + return; + + path = fdt_getprop(blob, nodeoffset, "pci1", NULL); + if (path) { + tmp[0] = cpu_to_be32(pci_hose[1].first_busno); + tmp[1] = cpu_to_be32(pci_hose[1].last_busno); + do_fixup_by_path(blob, path, "bus-range", + &tmp, sizeof(tmp), 1); + + tmp[0] = cpu_to_be32(gd->pci_clk); + do_fixup_by_path(blob, path, "clock-frequency", + &tmp, sizeof(tmp[0]), 1); + } + } +} +#endif /* CONFIG_OF_LIBFDT */ diff --git a/arch/ppc/cpu/mpc83xx/pcie.c b/arch/ppc/cpu/mpc83xx/pcie.c new file mode 100644 index 0000000..77f8906 --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/pcie.c @@ -0,0 +1,317 @@ +/* + * Copyright (C) 2007-2009 Freescale Semiconductor, Inc. + * Copyright (C) 2008-2009 MontaVista Software, Inc. + * + * Authors: Tony Li <tony.li@freescale.com> + * Anton Vorontsov <avorontsov@ru.mvista.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <pci.h> +#include <mpc83xx.h> +#include <asm/io.h> + +DECLARE_GLOBAL_DATA_PTR; + +#define PCIE_MAX_BUSES 2 + +#ifdef CONFIG_83XX_GENERIC_PCIE_REGISTER_HOSES + +static int mpc83xx_pcie_remap_cfg(struct pci_controller *hose, pci_dev_t dev) +{ + int bus = PCI_BUS(dev) - hose->first_busno; + immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + pex83xx_t *pex = &immr->pciexp[bus]; + struct pex_outbound_window *out_win = &pex->bridge.pex_outbound_win[0]; + u8 devfn = PCI_DEV(dev) << 3 | PCI_FUNC(dev); + u32 dev_base = bus << 24 | devfn << 16; + + if (hose->indirect_type == INDIRECT_TYPE_NO_PCIE_LINK) + return -1; + /* + * Workaround for the HW bug: for Type 0 configure transactions the + * PCI-E controller does not check the device number bits and just + * assumes that the device number bits are 0. + */ + if (devfn & 0xf8) + return -1; + + out_le32(&out_win->tarl, dev_base); + return 0; +} + +#define cfg_read(val, addr, type, op) \ + do { *val = op((type)(addr)); } while (0) +#define cfg_write(val, addr, type, op) \ + do { op((type *)(addr), (val)); } while (0) + +#define cfg_read_err(val) do { *val = -1; } while (0) +#define cfg_write_err(val) do { } while (0) + +#define PCIE_OP(rw, size, type, op) \ +static int pcie_##rw##_config_##size(struct pci_controller *hose, \ + pci_dev_t dev, int offset, \ + type val) \ +{ \ + int ret; \ + \ + ret = mpc83xx_pcie_remap_cfg(hose, dev); \ + if (ret) { \ + cfg_##rw##_err(val); \ + return ret; \ + } \ + cfg_##rw(val, (void *)hose->cfg_addr + offset, type, op); \ + return 0; \ +} + +PCIE_OP(read, byte, u8 *, in_8) +PCIE_OP(read, word, u16 *, in_le16) +PCIE_OP(read, dword, u32 *, in_le32) +PCIE_OP(write, byte, u8, out_8) +PCIE_OP(write, word, u16, out_le16) +PCIE_OP(write, dword, u32, out_le32) + +static void mpc83xx_pcie_register_hose(int bus, struct pci_region *reg, + u8 link) +{ + extern void disable_addr_trans(void); /* start.S */ + static struct pci_controller pcie_hose[PCIE_MAX_BUSES]; + struct pci_controller *hose = &pcie_hose[bus]; + int i; + + /* + * There are no spare BATs to remap all PCI-E windows for U-Boot, so + * disable translations. In general, this is not great solution, and + * that's why we don't register PCI-E hoses by default. + */ + disable_addr_trans(); + + for (i = 0; i < 2; i++, reg++) { + if (reg->size == 0) + break; + + hose->regions[i] = *reg; + hose->region_count++; + } + + i = hose->region_count++; + hose->regions[i].bus_start = 0; + hose->regions[i].phys_start = 0; + hose->regions[i].size = gd->ram_size; + hose->regions[i].flags = PCI_REGION_MEM | PCI_REGION_SYS_MEMORY; + + i = hose->region_count++; + hose->regions[i].bus_start = CONFIG_SYS_IMMR; + hose->regions[i].phys_start = CONFIG_SYS_IMMR; + hose->regions[i].size = 0x100000; + hose->regions[i].flags = PCI_REGION_MEM | PCI_REGION_SYS_MEMORY; + + hose->first_busno = pci_last_busno() + 1; + hose->last_busno = 0xff; + + if (bus == 0) + hose->cfg_addr = (unsigned int *)CONFIG_SYS_PCIE1_CFG_BASE; + else + hose->cfg_addr = (unsigned int *)CONFIG_SYS_PCIE2_CFG_BASE; + + pci_set_ops(hose, + pcie_read_config_byte, + pcie_read_config_word, + pcie_read_config_dword, + pcie_write_config_byte, + pcie_write_config_word, + pcie_write_config_dword); + + if (!link) + hose->indirect_type = INDIRECT_TYPE_NO_PCIE_LINK; + + pci_register_hose(hose); + +#ifdef CONFIG_PCI_SCAN_SHOW + printf("PCI: Bus Dev VenId DevId Class Int\n"); +#endif + /* + * Hose scan. + */ + hose->last_busno = pci_hose_scan(hose); +} + +#else + +static void mpc83xx_pcie_register_hose(int bus, struct pci_region *reg, + u8 link) {} + +#endif /* CONFIG_83XX_GENERIC_PCIE_REGISTER_HOSES */ + +static void mpc83xx_pcie_init_bus(int bus, struct pci_region *reg) +{ + immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + pex83xx_t *pex = &immr->pciexp[bus]; + struct pex_outbound_window *out_win; + struct pex_inbound_window *in_win; + void *hose_cfg_base; + unsigned int ram_sz; + unsigned int barl; + unsigned int tar; + u16 reg16; + int i; + + /* Enable pex csb bridge inbound & outbound transactions */ + out_le32(&pex->bridge.pex_csb_ctrl, + in_le32(&pex->bridge.pex_csb_ctrl) | PEX_CSB_CTRL_OBPIOE | + PEX_CSB_CTRL_IBPIOE); + + /* Enable bridge outbound */ + out_le32(&pex->bridge.pex_csb_obctrl, PEX_CSB_OBCTRL_PIOE | + PEX_CSB_OBCTRL_MEMWE | PEX_CSB_OBCTRL_IOWE | + PEX_CSB_OBCTRL_CFGWE); + + out_win = &pex->bridge.pex_outbound_win[0]; + if (bus) { + out_le32(&out_win->ar, PEX_OWAR_EN | PEX_OWAR_TYPE_CFG | + CONFIG_SYS_PCIE2_CFG_SIZE); + out_le32(&out_win->bar, CONFIG_SYS_PCIE2_CFG_BASE); + } else { + out_le32(&out_win->ar, PEX_OWAR_EN | PEX_OWAR_TYPE_CFG | + CONFIG_SYS_PCIE1_CFG_SIZE); + out_le32(&out_win->bar, CONFIG_SYS_PCIE1_CFG_BASE); + } + out_le32(&out_win->tarl, 0); + out_le32(&out_win->tarh, 0); + + for (i = 0; i < 2; i++, reg++) { + u32 ar; + + if (reg->size == 0) + break; + + out_win = &pex->bridge.pex_outbound_win[i + 1]; + out_le32(&out_win->bar, reg->phys_start); + out_le32(&out_win->tarl, reg->bus_start); + out_le32(&out_win->tarh, 0); + ar = PEX_OWAR_EN | (reg->size & PEX_OWAR_SIZE); + if (reg->flags & PCI_REGION_IO) + ar |= PEX_OWAR_TYPE_IO; + else + ar |= PEX_OWAR_TYPE_MEM; + out_le32(&out_win->ar, ar); + } + + out_le32(&pex->bridge.pex_csb_ibctrl, PEX_CSB_IBCTRL_PIOE); + + ram_sz = gd->ram_size; + barl = 0; + tar = 0; + i = 0; + while (ram_sz > 0) { + in_win = &pex->bridge.pex_inbound_win[i]; + out_le32(&in_win->barl, barl); + out_le32(&in_win->barh, 0x0); + out_le32(&in_win->tar, tar); + if (ram_sz >= 0x10000000) { + /* The maxium windows size is 256M */ + out_le32(&in_win->ar, PEX_IWAR_EN | PEX_IWAR_NSOV | + PEX_IWAR_TYPE_PF | 0x0FFFF000); + barl += 0x10000000; + tar += 0x10000000; + ram_sz -= 0x10000000; + } else { + /* The UM is not clear here. + * So, round up to even Mb boundary */ + + ram_sz = ram_sz >> (20 + + ((ram_sz & 0xFFFFF) ? 1 : 0)); + if (!(ram_sz % 2)) + ram_sz -= 1; + out_le32(&in_win->ar, PEX_IWAR_EN | PEX_IWAR_NSOV | + PEX_IWAR_TYPE_PF | (ram_sz << 20) | 0xFF000); + ram_sz = 0; + } + i++; + } + + in_win = &pex->bridge.pex_inbound_win[i]; + out_le32(&in_win->barl, CONFIG_SYS_IMMR); + out_le32(&in_win->barh, 0); + out_le32(&in_win->tar, CONFIG_SYS_IMMR); + out_le32(&in_win->ar, PEX_IWAR_EN | + PEX_IWAR_TYPE_NO_PF | PEX_IWAR_SIZE_1M); + + /* Enable the host virtual INTX interrupts */ + out_le32(&pex->bridge.pex_int_axi_misc_enb, + in_le32(&pex->bridge.pex_int_axi_misc_enb) | 0x1E0); + + /* Hose configure header is memory-mapped */ + hose_cfg_base = (void *)pex; + + get_clocks(); + /* Configure the PCIE controller core clock ratio */ + out_le32(hose_cfg_base + PEX_GCLK_RATIO, + (((bus ? gd->pciexp2_clk : gd->pciexp1_clk) / 1000000) * 16) + / 333); + udelay(1000000); + + /* Do Type 1 bridge configuration */ + out_8(hose_cfg_base + PCI_PRIMARY_BUS, 0); + out_8(hose_cfg_base + PCI_SECONDARY_BUS, 1); + out_8(hose_cfg_base + PCI_SUBORDINATE_BUS, 255); + + /* + * Write to Command register + */ + reg16 = in_le16(hose_cfg_base + PCI_COMMAND); + reg16 |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO | + PCI_COMMAND_SERR | PCI_COMMAND_PARITY; + out_le16(hose_cfg_base + PCI_COMMAND, reg16); + + /* + * Clear non-reserved bits in status register. + */ + out_le16(hose_cfg_base + PCI_STATUS, 0xffff); + out_8(hose_cfg_base + PCI_LATENCY_TIMER, 0x80); + out_8(hose_cfg_base + PCI_CACHE_LINE_SIZE, 0x08); + + printf("PCIE%d: ", bus); + + reg16 = in_le16(hose_cfg_base + PCI_LTSSM); + if (reg16 >= PCI_LTSSM_L0) + printf("link\n"); + else + printf("No link\n"); + + mpc83xx_pcie_register_hose(bus, reg, reg16 >= PCI_LTSSM_L0); +} + +/* + * The caller must have already set SCCR, SERDES and the PCIE_LAW BARs + * must have been set to cover all of the requested regions. + */ +void mpc83xx_pcie_init(int num_buses, struct pci_region **reg, int warmboot) +{ + int i; + + /* + * Release PCI RST Output signal. + * Power on to RST high must be at least 100 ms as per PCI spec. + * On warm boots only 1 ms is required. + */ + udelay(warmboot ? 1000 : 100000); + + for (i = 0; i < num_buses; i++) + mpc83xx_pcie_init_bus(i, reg[i]); +} diff --git a/arch/ppc/cpu/mpc83xx/qe_io.c b/arch/ppc/cpu/mpc83xx/qe_io.c new file mode 100644 index 0000000..db94f00 --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/qe_io.c @@ -0,0 +1,82 @@ +/* + * Copyright (C) 2006 Freescale Semiconductor, Inc. + * + * Dave Liu <daveliu@freescale.com> + * based on source code of Shlomi Gridish + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include "common.h" +#include "asm/errno.h" +#include "asm/io.h" +#include "asm/immap_83xx.h" + +#define NUM_OF_PINS 32 +void qe_config_iopin(u8 port, u8 pin, int dir, int open_drain, int assign) +{ + u32 pin_2bit_mask; + u32 pin_2bit_dir; + u32 pin_2bit_assign; + u32 pin_1bit_mask; + u32 tmp_val; + volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR; + volatile qepio83xx_t *par_io = (volatile qepio83xx_t *)&im->qepio; + + /* Caculate pin location and 2bit mask and dir */ + pin_2bit_mask = (u32)(0x3 << (NUM_OF_PINS-(pin%(NUM_OF_PINS/2)+1)*2)); + pin_2bit_dir = (u32)(dir << (NUM_OF_PINS-(pin%(NUM_OF_PINS/2)+1)*2)); + + /* Setup the direction */ + tmp_val = (pin > (NUM_OF_PINS/2) - 1) ? \ + in_be32(&par_io->ioport[port].dir2) : + in_be32(&par_io->ioport[port].dir1); + + if (pin > (NUM_OF_PINS/2) -1) { + out_be32(&par_io->ioport[port].dir2, ~pin_2bit_mask & tmp_val); + out_be32(&par_io->ioport[port].dir2, pin_2bit_dir | tmp_val); + } else { + out_be32(&par_io->ioport[port].dir1, ~pin_2bit_mask & tmp_val); + out_be32(&par_io->ioport[port].dir1, pin_2bit_dir | tmp_val); + } + + /* Calculate pin location for 1bit mask */ + pin_1bit_mask = (u32)(1 << (NUM_OF_PINS - (pin+1))); + + /* Setup the open drain */ + tmp_val = in_be32(&par_io->ioport[port].podr); + if (open_drain) { + out_be32(&par_io->ioport[port].podr, pin_1bit_mask | tmp_val); + } else { + out_be32(&par_io->ioport[port].podr, ~pin_1bit_mask & tmp_val); + } + + /* Setup the assignment */ + tmp_val = (pin > (NUM_OF_PINS/2) - 1) ? + in_be32(&par_io->ioport[port].ppar2): + in_be32(&par_io->ioport[port].ppar1); + pin_2bit_assign = (u32)(assign + << (NUM_OF_PINS - (pin%(NUM_OF_PINS/2)+1)*2)); + + /* Clear and set 2 bits mask */ + if (pin > (NUM_OF_PINS/2) - 1) { + out_be32(&par_io->ioport[port].ppar2, ~pin_2bit_mask & tmp_val); + out_be32(&par_io->ioport[port].ppar2, pin_2bit_assign | tmp_val); + } else { + out_be32(&par_io->ioport[port].ppar1, ~pin_2bit_mask & tmp_val); + out_be32(&par_io->ioport[port].ppar1, pin_2bit_assign | tmp_val); + } +} diff --git a/arch/ppc/cpu/mpc83xx/serdes.c b/arch/ppc/cpu/mpc83xx/serdes.c new file mode 100644 index 0000000..64033fe --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/serdes.c @@ -0,0 +1,145 @@ +/* + * Freescale SerDes initialization routine + * + * Copyright (C) 2007 Freescale Semicondutor, Inc. + * Copyright (C) 2008 MontaVista Software, Inc. + * + * Author: Li Yang <leoli@freescale.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <config.h> +#include <common.h> +#include <asm/io.h> +#include <asm/fsl_serdes.h> + +/* SerDes registers */ +#define FSL_SRDSCR0_OFFS 0x0 +#define FSL_SRDSCR0_DPP_1V2 0x00008800 +#define FSL_SRDSCR1_OFFS 0x4 +#define FSL_SRDSCR1_PLLBW 0x00000040 +#define FSL_SRDSCR2_OFFS 0x8 +#define FSL_SRDSCR2_VDD_1V2 0x00800000 +#define FSL_SRDSCR2_SEIC_MASK 0x00001c1c +#define FSL_SRDSCR2_SEIC_SATA 0x00001414 +#define FSL_SRDSCR2_SEIC_PEX 0x00001010 +#define FSL_SRDSCR2_SEIC_SGMII 0x00000101 +#define FSL_SRDSCR3_OFFS 0xc +#define FSL_SRDSCR3_KFR_SATA 0x10100000 +#define FSL_SRDSCR3_KPH_SATA 0x04040000 +#define FSL_SRDSCR3_SDFM_SATA_PEX 0x01010000 +#define FSL_SRDSCR3_SDTXL_SATA 0x00000505 +#define FSL_SRDSCR4_OFFS 0x10 +#define FSL_SRDSCR4_PROT_SATA 0x00000808 +#define FSL_SRDSCR4_PROT_PEX 0x00000101 +#define FSL_SRDSCR4_PROT_SGMII 0x00000505 +#define FSL_SRDSCR4_PLANE_X2 0x01000000 +#define FSL_SRDSRSTCTL_OFFS 0x20 +#define FSL_SRDSRSTCTL_RST 0x80000000 +#define FSL_SRDSRSTCTL_SATA_RESET 0xf + +void fsl_setup_serdes(u32 offset, char proto, u32 rfcks, char vdd) +{ + void *regs = (void *)CONFIG_SYS_IMMR + offset; + u32 tmp; + + /* 1.0V corevdd */ + if (vdd) { + /* DPPE/DPPA = 0 */ + tmp = in_be32(regs + FSL_SRDSCR0_OFFS); + tmp &= ~FSL_SRDSCR0_DPP_1V2; + out_be32(regs + FSL_SRDSCR0_OFFS, tmp); + + /* VDD = 0 */ + tmp = in_be32(regs + FSL_SRDSCR2_OFFS); + tmp &= ~FSL_SRDSCR2_VDD_1V2; + out_be32(regs + FSL_SRDSCR2_OFFS, tmp); + } + + /* protocol specific configuration */ + switch (proto) { + case FSL_SERDES_PROTO_SATA: + /* Set and clear reset bits */ + tmp = in_be32(regs + FSL_SRDSRSTCTL_OFFS); + tmp |= FSL_SRDSRSTCTL_SATA_RESET; + out_be32(regs + FSL_SRDSRSTCTL_OFFS, tmp); + udelay(1000); + tmp &= ~FSL_SRDSRSTCTL_SATA_RESET; + out_be32(regs + FSL_SRDSRSTCTL_OFFS, tmp); + + /* Configure SRDSCR1 */ + tmp = in_be32(regs + FSL_SRDSCR1_OFFS); + tmp &= ~FSL_SRDSCR1_PLLBW; + out_be32(regs + FSL_SRDSCR1_OFFS, tmp); + + /* Configure SRDSCR2 */ + tmp = in_be32(regs + FSL_SRDSCR2_OFFS); + tmp &= ~FSL_SRDSCR2_SEIC_MASK; + tmp |= FSL_SRDSCR2_SEIC_SATA; + out_be32(regs + FSL_SRDSCR2_OFFS, tmp); + + /* Configure SRDSCR3 */ + tmp = FSL_SRDSCR3_KFR_SATA | FSL_SRDSCR3_KPH_SATA | + FSL_SRDSCR3_SDFM_SATA_PEX | + FSL_SRDSCR3_SDTXL_SATA; + out_be32(regs + FSL_SRDSCR3_OFFS, tmp); + + /* Configure SRDSCR4 */ + tmp = rfcks | FSL_SRDSCR4_PROT_SATA; + out_be32(regs + FSL_SRDSCR4_OFFS, tmp); + break; + case FSL_SERDES_PROTO_PEX: + case FSL_SERDES_PROTO_PEX_X2: + /* Configure SRDSCR1 */ + tmp = in_be32(regs + FSL_SRDSCR1_OFFS); + tmp |= FSL_SRDSCR1_PLLBW; + out_be32(regs + FSL_SRDSCR1_OFFS, tmp); + + /* Configure SRDSCR2 */ + tmp = in_be32(regs + FSL_SRDSCR2_OFFS); + tmp &= ~FSL_SRDSCR2_SEIC_MASK; + tmp |= FSL_SRDSCR2_SEIC_PEX; + out_be32(regs + FSL_SRDSCR2_OFFS, tmp); + + /* Configure SRDSCR3 */ + tmp = FSL_SRDSCR3_SDFM_SATA_PEX; + out_be32(regs + FSL_SRDSCR3_OFFS, tmp); + + /* Configure SRDSCR4 */ + tmp = rfcks | FSL_SRDSCR4_PROT_PEX; + if (proto == FSL_SERDES_PROTO_PEX_X2) + tmp |= FSL_SRDSCR4_PLANE_X2; + out_be32(regs + FSL_SRDSCR4_OFFS, tmp); + break; + case FSL_SERDES_PROTO_SGMII: + /* Configure SRDSCR1 */ + tmp = in_be32(regs + FSL_SRDSCR1_OFFS); + tmp &= ~FSL_SRDSCR1_PLLBW; + out_be32(regs + FSL_SRDSCR1_OFFS, tmp); + + /* Configure SRDSCR2 */ + tmp = in_be32(regs + FSL_SRDSCR2_OFFS); + tmp &= ~FSL_SRDSCR2_SEIC_MASK; + tmp |= FSL_SRDSCR2_SEIC_SGMII; + out_be32(regs + FSL_SRDSCR2_OFFS, tmp); + + /* Configure SRDSCR3 */ + out_be32(regs + FSL_SRDSCR3_OFFS, 0); + + /* Configure SRDSCR4 */ + tmp = rfcks | FSL_SRDSCR4_PROT_SGMII; + out_be32(regs + FSL_SRDSCR4_OFFS, tmp); + break; + default: + return; + } + + /* Do a software reset */ + tmp = in_be32(regs + FSL_SRDSRSTCTL_OFFS); + tmp |= FSL_SRDSRSTCTL_RST; + out_be32(regs + FSL_SRDSRSTCTL_OFFS, tmp); +} diff --git a/arch/ppc/cpu/mpc83xx/spd_sdram.c b/arch/ppc/cpu/mpc83xx/spd_sdram.c new file mode 100644 index 0000000..44aaa9a --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/spd_sdram.c @@ -0,0 +1,918 @@ +/* + * (C) Copyright 2006-2007 Freescale Semiconductor, Inc. + * + * (C) Copyright 2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 2004-2006 Freescale Semiconductor, Inc. + * (C) Copyright 2003 Motorola Inc. + * Xianghua Xiao (X.Xiao@motorola.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <i2c.h> +#include <spd.h> +#include <asm/mmu.h> +#include <spd_sdram.h> + +DECLARE_GLOBAL_DATA_PTR; + +void board_add_ram_info(int use_default) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + volatile ddr83xx_t *ddr = &immap->ddr; + char buf[32]; + + printf(" (DDR%d", ((ddr->sdram_cfg & SDRAM_CFG_SDRAM_TYPE_MASK) + >> SDRAM_CFG_SDRAM_TYPE_SHIFT) - 1); + + if (ddr->sdram_cfg & SDRAM_CFG_32_BE) + puts(", 32-bit"); + else + puts(", 64-bit"); + + if (ddr->sdram_cfg & SDRAM_CFG_ECC_EN) + puts(", ECC on"); + else + puts(", ECC off"); + + printf(", %s MHz)", strmhz(buf, gd->mem_clk)); + +#if defined(CONFIG_SYS_LB_SDRAM) && defined(CONFIG_SYS_LBC_SDRAM_SIZE) + puts("\nSDRAM: "); + print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, " (local bus)"); +#endif +} + +#ifdef CONFIG_SPD_EEPROM +#ifndef CONFIG_SYS_READ_SPD +#define CONFIG_SYS_READ_SPD i2c_read +#endif + +/* + * Convert picoseconds into clock cycles (rounding up if needed). + */ +int +picos_to_clk(int picos) +{ + unsigned int mem_bus_clk; + int clks; + + mem_bus_clk = gd->mem_clk >> 1; + clks = picos / (1000000000 / (mem_bus_clk / 1000)); + if (picos % (1000000000 / (mem_bus_clk / 1000)) != 0) + clks++; + + return clks; +} + +unsigned int banksize(unsigned char row_dens) +{ + return ((row_dens >> 2) | ((row_dens & 3) << 6)) << 24; +} + +int read_spd(uint addr) +{ + return ((int) addr); +} + +#undef SPD_DEBUG +#ifdef SPD_DEBUG +static void spd_debug(spd_eeprom_t *spd) +{ + printf ("\nDIMM type: %-18.18s\n", spd->mpart); + printf ("SPD size: %d\n", spd->info_size); + printf ("EEPROM size: %d\n", 1 << spd->chip_size); + printf ("Memory type: %d\n", spd->mem_type); + printf ("Row addr: %d\n", spd->nrow_addr); + printf ("Column addr: %d\n", spd->ncol_addr); + printf ("# of rows: %d\n", spd->nrows); + printf ("Row density: %d\n", spd->row_dens); + printf ("# of banks: %d\n", spd->nbanks); + printf ("Data width: %d\n", + 256 * spd->dataw_msb + spd->dataw_lsb); + printf ("Chip width: %d\n", spd->primw); + printf ("Refresh rate: %02X\n", spd->refresh); + printf ("CAS latencies: %02X\n", spd->cas_lat); + printf ("Write latencies: %02X\n", spd->write_lat); + printf ("tRP: %d\n", spd->trp); + printf ("tRCD: %d\n", spd->trcd); + printf ("\n"); +} +#endif /* SPD_DEBUG */ + +long int spd_sdram() +{ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; + volatile ddr83xx_t *ddr = &immap->ddr; + volatile law83xx_t *ecm = &immap->sysconf.ddrlaw[0]; + spd_eeprom_t spd; + unsigned int n_ranks; + unsigned int odt_rd_cfg, odt_wr_cfg; + unsigned char twr_clk, twtr_clk; + unsigned int sdram_type; + unsigned int memsize; + unsigned int law_size; + unsigned char caslat, caslat_ctrl; + unsigned int trfc, trfc_clk, trfc_low, trfc_high; + unsigned int trcd_clk, trtp_clk; + unsigned char cke_min_clk; + unsigned char add_lat, wr_lat; + unsigned char wr_data_delay; + unsigned char four_act; + unsigned char cpo; + unsigned char burstlen; + unsigned char odt_cfg, mode_odt_enable; + unsigned int max_bus_clk; + unsigned int max_data_rate, effective_data_rate; + unsigned int ddrc_clk; + unsigned int refresh_clk; + unsigned int sdram_cfg; + unsigned int ddrc_ecc_enable; + unsigned int pvr = get_pvr(); + + /* + * First disable the memory controller (could be enabled + * by the debugger) + */ + clrsetbits_be32(&ddr->sdram_cfg, SDRAM_CFG_MEM_EN, 0); + sync(); + isync(); + + /* Read SPD parameters with I2C */ + CONFIG_SYS_READ_SPD(SPD_EEPROM_ADDRESS, 0, 1, (uchar *) & spd, sizeof (spd)); +#ifdef SPD_DEBUG + spd_debug(&spd); +#endif + /* Check the memory type */ + if (spd.mem_type != SPD_MEMTYPE_DDR && spd.mem_type != SPD_MEMTYPE_DDR2) { + debug("DDR: Module mem type is %02X\n", spd.mem_type); + return 0; + } + + /* Check the number of physical bank */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + n_ranks = spd.nrows; + } else { + n_ranks = (spd.nrows & 0x7) + 1; + } + + if (n_ranks > 2) { + printf("DDR: The number of physical bank is %02X\n", n_ranks); + return 0; + } + + /* Check if the number of row of the module is in the range of DDRC */ + if (spd.nrow_addr < 12 || spd.nrow_addr > 15) { + printf("DDR: Row number is out of range of DDRC, row=%02X\n", + spd.nrow_addr); + return 0; + } + + /* Check if the number of col of the module is in the range of DDRC */ + if (spd.ncol_addr < 8 || spd.ncol_addr > 11) { + printf("DDR: Col number is out of range of DDRC, col=%02X\n", + spd.ncol_addr); + return 0; + } + +#ifdef CONFIG_SYS_DDRCDR_VALUE + /* + * Adjust DDR II IO voltage biasing. It just makes it work. + */ + if(spd.mem_type == SPD_MEMTYPE_DDR2) { + immap->sysconf.ddrcdr = CONFIG_SYS_DDRCDR_VALUE; + } + udelay(50000); +#endif + + /* + * ODT configuration recommendation from DDR Controller Chapter. + */ + odt_rd_cfg = 0; /* Never assert ODT */ + odt_wr_cfg = 0; /* Never assert ODT */ + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + odt_wr_cfg = 1; /* Assert ODT on writes to CSn */ + } + + /* Setup DDR chip select register */ +#ifdef CONFIG_SYS_83XX_DDR_USES_CS0 + ddr->csbnds[0].csbnds = (banksize(spd.row_dens) >> 24) - 1; + ddr->cs_config[0] = ( 1 << 31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) + | ((spd.nbanks == 8 ? 1 : 0) << 14) + | ((spd.nrow_addr - 12) << 8) + | (spd.ncol_addr - 8) ); + debug("\n"); + debug("cs0_bnds = 0x%08x\n",ddr->csbnds[0].csbnds); + debug("cs0_config = 0x%08x\n",ddr->cs_config[0]); + + if (n_ranks == 2) { + ddr->csbnds[1].csbnds = ( (banksize(spd.row_dens) >> 8) + | ((banksize(spd.row_dens) >> 23) - 1) ); + ddr->cs_config[1] = ( 1<<31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) + | ((spd.nbanks == 8 ? 1 : 0) << 14) + | ((spd.nrow_addr - 12) << 8) + | (spd.ncol_addr - 8) ); + debug("cs1_bnds = 0x%08x\n",ddr->csbnds[1].csbnds); + debug("cs1_config = 0x%08x\n",ddr->cs_config[1]); + } + +#else + ddr->csbnds[2].csbnds = (banksize(spd.row_dens) >> 24) - 1; + ddr->cs_config[2] = ( 1 << 31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) + | ((spd.nbanks == 8 ? 1 : 0) << 14) + | ((spd.nrow_addr - 12) << 8) + | (spd.ncol_addr - 8) ); + debug("\n"); + debug("cs2_bnds = 0x%08x\n",ddr->csbnds[2].csbnds); + debug("cs2_config = 0x%08x\n",ddr->cs_config[2]); + + if (n_ranks == 2) { + ddr->csbnds[3].csbnds = ( (banksize(spd.row_dens) >> 8) + | ((banksize(spd.row_dens) >> 23) - 1) ); + ddr->cs_config[3] = ( 1<<31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) + | ((spd.nbanks == 8 ? 1 : 0) << 14) + | ((spd.nrow_addr - 12) << 8) + | (spd.ncol_addr - 8) ); + debug("cs3_bnds = 0x%08x\n",ddr->csbnds[3].csbnds); + debug("cs3_config = 0x%08x\n",ddr->cs_config[3]); + } +#endif + + /* + * Figure out memory size in Megabytes. + */ + memsize = n_ranks * banksize(spd.row_dens) / 0x100000; + + /* + * First supported LAW size is 16M, at LAWAR_SIZE_16M == 23. + */ + law_size = 19 + __ilog2(memsize); + + /* + * Set up LAWBAR for all of DDR. + */ + ecm->bar = CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000; + ecm->ar = (LAWAR_EN | LAWAR_TRGT_IF_DDR | (LAWAR_SIZE & law_size)); + debug("DDR:bar=0x%08x\n", ecm->bar); + debug("DDR:ar=0x%08x\n", ecm->ar); + + /* + * Find the largest CAS by locating the highest 1 bit + * in the spd.cas_lat field. Translate it to a DDR + * controller field value: + * + * CAS Lat DDR I DDR II Ctrl + * Clocks SPD Bit SPD Bit Value + * ------- ------- ------- ----- + * 1.0 0 0001 + * 1.5 1 0010 + * 2.0 2 2 0011 + * 2.5 3 0100 + * 3.0 4 3 0101 + * 3.5 5 0110 + * 4.0 6 4 0111 + * 4.5 1000 + * 5.0 5 1001 + */ + caslat = __ilog2(spd.cas_lat); + if ((spd.mem_type == SPD_MEMTYPE_DDR) + && (caslat > 6)) { + printf("DDR I: Invalid SPD CAS Latency: 0x%x.\n", spd.cas_lat); + return 0; + } else if (spd.mem_type == SPD_MEMTYPE_DDR2 + && (caslat < 2 || caslat > 5)) { + printf("DDR II: Invalid SPD CAS Latency: 0x%x.\n", + spd.cas_lat); + return 0; + } + debug("DDR: caslat SPD bit is %d\n", caslat); + + max_bus_clk = 1000 *10 / (((spd.clk_cycle & 0xF0) >> 4) * 10 + + (spd.clk_cycle & 0x0f)); + max_data_rate = max_bus_clk * 2; + + debug("DDR:Module maximum data rate is: %d MHz\n", max_data_rate); + + ddrc_clk = gd->mem_clk / 1000000; + effective_data_rate = 0; + + if (max_data_rate >= 460) { /* it is DDR2-800, 667, 533 */ + if (spd.cas_lat & 0x08) + caslat = 3; + else + caslat = 4; + if (ddrc_clk <= 460 && ddrc_clk > 350) + effective_data_rate = 400; + else if (ddrc_clk <=350 && ddrc_clk > 280) + effective_data_rate = 333; + else if (ddrc_clk <= 280 && ddrc_clk > 230) + effective_data_rate = 266; + else + effective_data_rate = 200; + } else if (max_data_rate >= 390 && max_data_rate < 460) { /* it is DDR 400 */ + if (ddrc_clk <= 460 && ddrc_clk > 350) { + /* DDR controller clk at 350~460 */ + effective_data_rate = 400; /* 5ns */ + caslat = caslat; + } else if (ddrc_clk <= 350 && ddrc_clk > 280) { + /* DDR controller clk at 280~350 */ + effective_data_rate = 333; /* 6ns */ + if (spd.clk_cycle2 == 0x60) + caslat = caslat - 1; + else + caslat = caslat; + } else if (ddrc_clk <= 280 && ddrc_clk > 230) { + /* DDR controller clk at 230~280 */ + effective_data_rate = 266; /* 7.5ns */ + if (spd.clk_cycle3 == 0x75) + caslat = caslat - 2; + else if (spd.clk_cycle2 == 0x75) + caslat = caslat - 1; + else + caslat = caslat; + } else if (ddrc_clk <= 230 && ddrc_clk > 90) { + /* DDR controller clk at 90~230 */ + effective_data_rate = 200; /* 10ns */ + if (spd.clk_cycle3 == 0xa0) + caslat = caslat - 2; + else if (spd.clk_cycle2 == 0xa0) + caslat = caslat - 1; + else + caslat = caslat; + } + } else if (max_data_rate >= 323) { /* it is DDR 333 */ + if (ddrc_clk <= 350 && ddrc_clk > 280) { + /* DDR controller clk at 280~350 */ + effective_data_rate = 333; /* 6ns */ + caslat = caslat; + } else if (ddrc_clk <= 280 && ddrc_clk > 230) { + /* DDR controller clk at 230~280 */ + effective_data_rate = 266; /* 7.5ns */ + if (spd.clk_cycle2 == 0x75) + caslat = caslat - 1; + else + caslat = caslat; + } else if (ddrc_clk <= 230 && ddrc_clk > 90) { + /* DDR controller clk at 90~230 */ + effective_data_rate = 200; /* 10ns */ + if (spd.clk_cycle3 == 0xa0) + caslat = caslat - 2; + else if (spd.clk_cycle2 == 0xa0) + caslat = caslat - 1; + else + caslat = caslat; + } + } else if (max_data_rate >= 256) { /* it is DDR 266 */ + if (ddrc_clk <= 350 && ddrc_clk > 280) { + /* DDR controller clk at 280~350 */ + printf("DDR: DDR controller freq is more than " + "max data rate of the module\n"); + return 0; + } else if (ddrc_clk <= 280 && ddrc_clk > 230) { + /* DDR controller clk at 230~280 */ + effective_data_rate = 266; /* 7.5ns */ + caslat = caslat; + } else if (ddrc_clk <= 230 && ddrc_clk > 90) { + /* DDR controller clk at 90~230 */ + effective_data_rate = 200; /* 10ns */ + if (spd.clk_cycle2 == 0xa0) + caslat = caslat - 1; + } + } else if (max_data_rate >= 190) { /* it is DDR 200 */ + if (ddrc_clk <= 350 && ddrc_clk > 230) { + /* DDR controller clk at 230~350 */ + printf("DDR: DDR controller freq is more than " + "max data rate of the module\n"); + return 0; + } else if (ddrc_clk <= 230 && ddrc_clk > 90) { + /* DDR controller clk at 90~230 */ + effective_data_rate = 200; /* 10ns */ + caslat = caslat; + } + } + + debug("DDR:Effective data rate is: %dMHz\n", effective_data_rate); + debug("DDR:The MSB 1 of CAS Latency is: %d\n", caslat); + + /* + * Errata DDR6 work around: input enable 2 cycles earlier. + * including MPC834x Rev1.0/1.1 and MPC8360 Rev1.1/1.2. + */ + if(PVR_MAJ(pvr) <= 1 && spd.mem_type == SPD_MEMTYPE_DDR){ + if (caslat == 2) + ddr->debug_reg = 0x201c0000; /* CL=2 */ + else if (caslat == 3) + ddr->debug_reg = 0x202c0000; /* CL=2.5 */ + else if (caslat == 4) + ddr->debug_reg = 0x202c0000; /* CL=3.0 */ + + __asm__ __volatile__ ("sync"); + + debug("Errata DDR6 (debug_reg=0x%08x)\n", ddr->debug_reg); + } + + /* + * Convert caslat clocks to DDR controller value. + * Force caslat_ctrl to be DDR Controller field-sized. + */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + caslat_ctrl = (caslat + 1) & 0x07; + } else { + caslat_ctrl = (2 * caslat - 1) & 0x0f; + } + + debug("DDR: effective data rate is %d MHz\n", effective_data_rate); + debug("DDR: caslat SPD bit is %d, controller field is 0x%x\n", + caslat, caslat_ctrl); + + /* + * Timing Config 0. + * Avoid writing for DDR I. + */ + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + unsigned char taxpd_clk = 8; /* By the book. */ + unsigned char tmrd_clk = 2; /* By the book. */ + unsigned char act_pd_exit = 2; /* Empirical? */ + unsigned char pre_pd_exit = 6; /* Empirical? */ + + ddr->timing_cfg_0 = (0 + | ((act_pd_exit & 0x7) << 20) /* ACT_PD_EXIT */ + | ((pre_pd_exit & 0x7) << 16) /* PRE_PD_EXIT */ + | ((taxpd_clk & 0xf) << 8) /* ODT_PD_EXIT */ + | ((tmrd_clk & 0xf) << 0) /* MRS_CYC */ + ); + debug("DDR: timing_cfg_0 = 0x%08x\n", ddr->timing_cfg_0); + } + + /* + * For DDR I, WRREC(Twr) and WRTORD(Twtr) are not in SPD, + * use conservative value. + * For DDR II, they are bytes 36 and 37, in quarter nanos. + */ + + if (spd.mem_type == SPD_MEMTYPE_DDR) { + twr_clk = 3; /* Clocks */ + twtr_clk = 1; /* Clocks */ + } else { + twr_clk = picos_to_clk(spd.twr * 250); + twtr_clk = picos_to_clk(spd.twtr * 250); + if (twtr_clk < 2) + twtr_clk = 2; + } + + /* + * Calculate Trfc, in picos. + * DDR I: Byte 42 straight up in ns. + * DDR II: Byte 40 and 42 swizzled some, in ns. + */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + trfc = spd.trfc * 1000; /* up to ps */ + } else { + unsigned int byte40_table_ps[8] = { + 0, + 250, + 330, + 500, + 660, + 750, + 0, + 0 + }; + + trfc = (((spd.trctrfc_ext & 0x1) * 256) + spd.trfc) * 1000 + + byte40_table_ps[(spd.trctrfc_ext >> 1) & 0x7]; + } + trfc_clk = picos_to_clk(trfc); + + /* + * Trcd, Byte 29, from quarter nanos to ps and clocks. + */ + trcd_clk = picos_to_clk(spd.trcd * 250) & 0x7; + + /* + * Convert trfc_clk to DDR controller fields. DDR I should + * fit in the REFREC field (16-19) of TIMING_CFG_1, but the + * 83xx controller has an extended REFREC field of three bits. + * The controller automatically adds 8 clocks to this value, + * so preadjust it down 8 first before splitting it up. + */ + trfc_low = (trfc_clk - 8) & 0xf; + trfc_high = ((trfc_clk - 8) >> 4) & 0x3; + + ddr->timing_cfg_1 = + (((picos_to_clk(spd.trp * 250) & 0x07) << 28 ) | /* PRETOACT */ + ((picos_to_clk(spd.tras * 1000) & 0x0f ) << 24 ) | /* ACTTOPRE */ + (trcd_clk << 20 ) | /* ACTTORW */ + (caslat_ctrl << 16 ) | /* CASLAT */ + (trfc_low << 12 ) | /* REFEC */ + ((twr_clk & 0x07) << 8) | /* WRRREC */ + ((picos_to_clk(spd.trrd * 250) & 0x07) << 4) | /* ACTTOACT */ + ((twtr_clk & 0x07) << 0) /* WRTORD */ + ); + + /* + * Additive Latency + * For DDR I, 0. + * For DDR II, with ODT enabled, use "a value" less than ACTTORW, + * which comes from Trcd, and also note that: + * add_lat + caslat must be >= 4 + */ + add_lat = 0; + if (spd.mem_type == SPD_MEMTYPE_DDR2 + && (odt_wr_cfg || odt_rd_cfg) + && (caslat < 4)) { + add_lat = 4 - caslat; + if ((add_lat + caslat) < 4) { + add_lat = 0; + } + } + + /* + * Write Data Delay + * Historically 0x2 == 4/8 clock delay. + * Empirically, 0x3 == 6/8 clock delay is suggested for DDR I 266. + */ + wr_data_delay = 2; + + /* + * Write Latency + * Read to Precharge + * Minimum CKE Pulse Width. + * Four Activate Window + */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + /* + * This is a lie. It should really be 1, but if it is + * set to 1, bits overlap into the old controller's + * otherwise unused ACSM field. If we leave it 0, then + * the HW will magically treat it as 1 for DDR 1. Oh Yea. + */ + wr_lat = 0; + + trtp_clk = 2; /* By the book. */ + cke_min_clk = 1; /* By the book. */ + four_act = 1; /* By the book. */ + + } else { + wr_lat = caslat - 1; + + /* Convert SPD value from quarter nanos to picos. */ + trtp_clk = picos_to_clk(spd.trtp * 250); + if (trtp_clk < 2) + trtp_clk = 2; + trtp_clk += add_lat; + + cke_min_clk = 3; /* By the book. */ + four_act = picos_to_clk(37500); /* By the book. 1k pages? */ + } + + /* + * Empirically set ~MCAS-to-preamble override for DDR 2. + * Your milage will vary. + */ + cpo = 0; + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + if (effective_data_rate == 266) { + cpo = 0x4; /* READ_LAT + 1/2 */ + } else if (effective_data_rate == 333) { + cpo = 0x6; /* READ_LAT + 1 */ + } else if (effective_data_rate == 400) { + cpo = 0x7; /* READ_LAT + 5/4 */ + } else { + /* Automatic calibration */ + cpo = 0x1f; + } + } + + ddr->timing_cfg_2 = (0 + | ((add_lat & 0x7) << 28) /* ADD_LAT */ + | ((cpo & 0x1f) << 23) /* CPO */ + | ((wr_lat & 0x7) << 19) /* WR_LAT */ + | ((trtp_clk & 0x7) << 13) /* RD_TO_PRE */ + | ((wr_data_delay & 0x7) << 10) /* WR_DATA_DELAY */ + | ((cke_min_clk & 0x7) << 6) /* CKE_PLS */ + | ((four_act & 0x1f) << 0) /* FOUR_ACT */ + ); + + debug("DDR:timing_cfg_1=0x%08x\n", ddr->timing_cfg_1); + debug("DDR:timing_cfg_2=0x%08x\n", ddr->timing_cfg_2); + + /* Check DIMM data bus width */ + if (spd.dataw_lsb < 64) { + if (spd.mem_type == SPD_MEMTYPE_DDR) + burstlen = 0x03; /* 32 bit data bus, burst len is 8 */ + else + burstlen = 0x02; /* 32 bit data bus, burst len is 4 */ + debug("\n DDR DIMM: data bus width is 32 bit"); + } else { + burstlen = 0x02; /* Others act as 64 bit bus, burst len is 4 */ + debug("\n DDR DIMM: data bus width is 64 bit"); + } + + /* Is this an ECC DDR chip? */ + if (spd.config == 0x02) + debug(" with ECC\n"); + else + debug(" without ECC\n"); + + /* Burst length is always 4 for 64 bit data bus, 8 for 32 bit data bus, + Burst type is sequential + */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + switch (caslat) { + case 1: + ddr->sdram_mode = 0x50 | burstlen; /* CL=1.5 */ + break; + case 2: + ddr->sdram_mode = 0x20 | burstlen; /* CL=2.0 */ + break; + case 3: + ddr->sdram_mode = 0x60 | burstlen; /* CL=2.5 */ + break; + case 4: + ddr->sdram_mode = 0x30 | burstlen; /* CL=3.0 */ + break; + default: + printf("DDR:only CL 1.5, 2.0, 2.5, 3.0 is supported\n"); + return 0; + } + } else { + mode_odt_enable = 0x0; /* Default disabled */ + if (odt_wr_cfg || odt_rd_cfg) { + /* + * Bits 6 and 2 in Extended MRS(1) + * Bit 2 == 0x04 == 75 Ohm, with 2 DIMM modules. + * Bit 6 == 0x40 == 150 Ohm, with 1 DIMM module. + */ + mode_odt_enable = 0x40; /* 150 Ohm */ + } + + ddr->sdram_mode = + (0 + | (1 << (16 + 10)) /* DQS Differential disable */ + | (add_lat << (16 + 3)) /* Additive Latency in EMRS1 */ + | (mode_odt_enable << 16) /* ODT Enable in EMRS1 */ + | ((twr_clk - 1) << 9) /* Write Recovery Autopre */ + | (caslat << 4) /* caslat */ + | (burstlen << 0) /* Burst length */ + ); + } + debug("DDR:sdram_mode=0x%08x\n", ddr->sdram_mode); + + /* + * Clear EMRS2 and EMRS3. + */ + ddr->sdram_mode2 = 0; + debug("DDR: sdram_mode2 = 0x%08x\n", ddr->sdram_mode2); + + switch (spd.refresh) { + case 0x00: + case 0x80: + refresh_clk = picos_to_clk(15625000); + break; + case 0x01: + case 0x81: + refresh_clk = picos_to_clk(3900000); + break; + case 0x02: + case 0x82: + refresh_clk = picos_to_clk(7800000); + break; + case 0x03: + case 0x83: + refresh_clk = picos_to_clk(31300000); + break; + case 0x04: + case 0x84: + refresh_clk = picos_to_clk(62500000); + break; + case 0x05: + case 0x85: + refresh_clk = picos_to_clk(125000000); + break; + default: + refresh_clk = 0x512; + break; + } + + /* + * Set BSTOPRE to 0x100 for page mode + * If auto-charge is used, set BSTOPRE = 0 + */ + ddr->sdram_interval = ((refresh_clk & 0x3fff) << 16) | 0x100; + debug("DDR:sdram_interval=0x%08x\n", ddr->sdram_interval); + + /* + * SDRAM Cfg 2 + */ + odt_cfg = 0; +#ifndef CONFIG_NEVER_ASSERT_ODT_TO_CPU + if (odt_rd_cfg | odt_wr_cfg) { + odt_cfg = 0x2; /* ODT to IOs during reads */ + } +#endif + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + ddr->sdram_cfg2 = (0 + | (0 << 26) /* True DQS */ + | (odt_cfg << 21) /* ODT only read */ + | (1 << 12) /* 1 refresh at a time */ + ); + + debug("DDR: sdram_cfg2 = 0x%08x\n", ddr->sdram_cfg2); + } + +#ifdef CONFIG_SYS_DDR_SDRAM_CLK_CNTL /* Optional platform specific value */ + ddr->sdram_clk_cntl = CONFIG_SYS_DDR_SDRAM_CLK_CNTL; +#endif + debug("DDR:sdram_clk_cntl=0x%08x\n", ddr->sdram_clk_cntl); + + asm("sync;isync"); + + udelay(600); + + /* + * Figure out the settings for the sdram_cfg register. Build up + * the value in 'sdram_cfg' before writing since the write into + * the register will actually enable the memory controller, and all + * settings must be done before enabling. + * + * sdram_cfg[0] = 1 (ddr sdram logic enable) + * sdram_cfg[1] = 1 (self-refresh-enable) + * sdram_cfg[5:7] = (SDRAM type = DDR SDRAM) + * 010 DDR 1 SDRAM + * 011 DDR 2 SDRAM + * sdram_cfg[12] = 0 (32_BE =0 , 64 bit bus mode) + * sdram_cfg[13] = 0 (8_BE =0, 4-beat bursts) + */ + if (spd.mem_type == SPD_MEMTYPE_DDR) + sdram_type = SDRAM_CFG_SDRAM_TYPE_DDR1; + else + sdram_type = SDRAM_CFG_SDRAM_TYPE_DDR2; + + sdram_cfg = (0 + | SDRAM_CFG_MEM_EN /* DDR enable */ + | SDRAM_CFG_SREN /* Self refresh */ + | sdram_type /* SDRAM type */ + ); + + /* sdram_cfg[3] = RD_EN - registered DIMM enable */ + if (spd.mod_attr & 0x02) + sdram_cfg |= SDRAM_CFG_RD_EN; + + /* The DIMM is 32bit width */ + if (spd.dataw_lsb < 64) { + if (spd.mem_type == SPD_MEMTYPE_DDR) + sdram_cfg |= SDRAM_CFG_32_BE | SDRAM_CFG_8_BE; + if (spd.mem_type == SPD_MEMTYPE_DDR2) + sdram_cfg |= SDRAM_CFG_32_BE; + } + + ddrc_ecc_enable = 0; + +#if defined(CONFIG_DDR_ECC) + /* Enable ECC with sdram_cfg[2] */ + if (spd.config == 0x02) { + sdram_cfg |= 0x20000000; + ddrc_ecc_enable = 1; + /* disable error detection */ + ddr->err_disable = ~ECC_ERROR_ENABLE; + /* set single bit error threshold to maximum value, + * reset counter to zero */ + ddr->err_sbe = (255 << ECC_ERROR_MAN_SBET_SHIFT) | + (0 << ECC_ERROR_MAN_SBEC_SHIFT); + } + + debug("DDR:err_disable=0x%08x\n", ddr->err_disable); + debug("DDR:err_sbe=0x%08x\n", ddr->err_sbe); +#endif + debug(" DDRC ECC mode: %s\n", ddrc_ecc_enable ? "ON":"OFF"); + +#if defined(CONFIG_DDR_2T_TIMING) + /* + * Enable 2T timing by setting sdram_cfg[16]. + */ + sdram_cfg |= SDRAM_CFG_2T_EN; +#endif + /* Enable controller, and GO! */ + ddr->sdram_cfg = sdram_cfg; + asm("sync;isync"); + udelay(500); + + debug("DDR:sdram_cfg=0x%08x\n", ddr->sdram_cfg); + return memsize; /*in MBytes*/ +} +#endif /* CONFIG_SPD_EEPROM */ + +#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) +/* + * Use timebase counter, get_timer() is not availabe + * at this point of initialization yet. + */ +static __inline__ unsigned long get_tbms (void) +{ + unsigned long tbl; + unsigned long tbu1, tbu2; + unsigned long ms; + unsigned long long tmp; + + ulong tbclk = get_tbclk(); + + /* get the timebase ticks */ + do { + asm volatile ("mftbu %0":"=r" (tbu1):); + asm volatile ("mftb %0":"=r" (tbl):); + asm volatile ("mftbu %0":"=r" (tbu2):); + } while (tbu1 != tbu2); + + /* convert ticks to ms */ + tmp = (unsigned long long)(tbu1); + tmp = (tmp << 32); + tmp += (unsigned long long)(tbl); + ms = tmp/(tbclk/1000); + + return ms; +} + +/* + * Initialize all of memory for ECC, then enable errors. + */ +void ddr_enable_ecc(unsigned int dram_size) +{ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; + volatile ddr83xx_t *ddr= &immap->ddr; + unsigned long t_start, t_end; + register u64 *p; + register uint size; + unsigned int pattern[2]; + + icache_enable(); + t_start = get_tbms(); + pattern[0] = 0xdeadbeef; + pattern[1] = 0xdeadbeef; + +#if defined(CONFIG_DDR_ECC_INIT_VIA_DMA) + dma_meminit(pattern[0], dram_size); +#else + debug("ddr init: CPU FP write method\n"); + size = dram_size; + for (p = 0; p < (u64*)(size); p++) { + ppcDWstore((u32*)p, pattern); + } + __asm__ __volatile__ ("sync"); +#endif + + t_end = get_tbms(); + icache_disable(); + + debug("\nREADY!!\n"); + debug("ddr init duration: %ld ms\n", t_end - t_start); + + /* Clear All ECC Errors */ + if ((ddr->err_detect & ECC_ERROR_DETECT_MME) == ECC_ERROR_DETECT_MME) + ddr->err_detect |= ECC_ERROR_DETECT_MME; + if ((ddr->err_detect & ECC_ERROR_DETECT_MBE) == ECC_ERROR_DETECT_MBE) + ddr->err_detect |= ECC_ERROR_DETECT_MBE; + if ((ddr->err_detect & ECC_ERROR_DETECT_SBE) == ECC_ERROR_DETECT_SBE) + ddr->err_detect |= ECC_ERROR_DETECT_SBE; + if ((ddr->err_detect & ECC_ERROR_DETECT_MSE) == ECC_ERROR_DETECT_MSE) + ddr->err_detect |= ECC_ERROR_DETECT_MSE; + + /* Disable ECC-Interrupts */ + ddr->err_int_en &= ECC_ERR_INT_DISABLE; + + /* Enable errors for ECC */ + ddr->err_disable &= ECC_ERROR_ENABLE; + + __asm__ __volatile__ ("sync"); + __asm__ __volatile__ ("isync"); +} +#endif /* CONFIG_DDR_ECC */ diff --git a/arch/ppc/cpu/mpc83xx/speed.c b/arch/ppc/cpu/mpc83xx/speed.c new file mode 100644 index 0000000..bde7e92 --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/speed.c @@ -0,0 +1,549 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc83xx.h> +#include <command.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* ----------------------------------------------------------------- */ + +typedef enum { + _unk, + _off, + _byp, + _x8, + _x4, + _x2, + _x1, + _1x, + _1_5x, + _2x, + _2_5x, + _3x +} mult_t; + +typedef struct { + mult_t core_csb_ratio; + mult_t vco_divider; +} corecnf_t; + +corecnf_t corecnf_tab[] = { + {_byp, _byp}, /* 0x00 */ + {_byp, _byp}, /* 0x01 */ + {_byp, _byp}, /* 0x02 */ + {_byp, _byp}, /* 0x03 */ + {_byp, _byp}, /* 0x04 */ + {_byp, _byp}, /* 0x05 */ + {_byp, _byp}, /* 0x06 */ + {_byp, _byp}, /* 0x07 */ + {_1x, _x2}, /* 0x08 */ + {_1x, _x4}, /* 0x09 */ + {_1x, _x8}, /* 0x0A */ + {_1x, _x8}, /* 0x0B */ + {_1_5x, _x2}, /* 0x0C */ + {_1_5x, _x4}, /* 0x0D */ + {_1_5x, _x8}, /* 0x0E */ + {_1_5x, _x8}, /* 0x0F */ + {_2x, _x2}, /* 0x10 */ + {_2x, _x4}, /* 0x11 */ + {_2x, _x8}, /* 0x12 */ + {_2x, _x8}, /* 0x13 */ + {_2_5x, _x2}, /* 0x14 */ + {_2_5x, _x4}, /* 0x15 */ + {_2_5x, _x8}, /* 0x16 */ + {_2_5x, _x8}, /* 0x17 */ + {_3x, _x2}, /* 0x18 */ + {_3x, _x4}, /* 0x19 */ + {_3x, _x8}, /* 0x1A */ + {_3x, _x8}, /* 0x1B */ +}; + +/* ----------------------------------------------------------------- */ + +/* + * + */ +int get_clocks(void) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + u32 pci_sync_in; + u8 spmf; + u8 clkin_div; + u32 sccr; + u32 corecnf_tab_index; + u8 corepll; + u32 lcrr; + + u32 csb_clk; +#if defined(CONFIG_MPC834x) || defined(CONFIG_MPC831x) || defined(CONFIG_MPC837x) + u32 tsec1_clk; + u32 tsec2_clk; + u32 usbdr_clk; +#endif +#ifdef CONFIG_MPC834x + u32 usbmph_clk; +#endif + u32 core_clk; + u32 i2c1_clk; +#if !defined(CONFIG_MPC832x) + u32 i2c2_clk; +#endif +#if defined(CONFIG_MPC8315) + u32 tdm_clk; +#endif +#if defined(CONFIG_MPC837x) + u32 sdhc_clk; +#endif + u32 enc_clk; + u32 lbiu_clk; + u32 lclk_clk; + u32 mem_clk; +#if defined(CONFIG_MPC8360) + u32 mem_sec_clk; +#endif +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832x) + u32 qepmf; + u32 qepdf; + u32 qe_clk; + u32 brg_clk; +#endif +#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC831x) + u32 pciexp1_clk; + u32 pciexp2_clk; +#endif +#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315) + u32 sata_clk; +#endif + + if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im) + return -1; + + clkin_div = ((im->clk.spmr & SPMR_CKID) >> SPMR_CKID_SHIFT); + + if (im->reset.rcwh & HRCWH_PCI_HOST) { +#if defined(CONFIG_83XX_CLKIN) + pci_sync_in = CONFIG_83XX_CLKIN / (1 + clkin_div); +#else + pci_sync_in = 0xDEADBEEF; +#endif + } else { +#if defined(CONFIG_83XX_PCICLK) + pci_sync_in = CONFIG_83XX_PCICLK; +#else + pci_sync_in = 0xDEADBEEF; +#endif + } + + spmf = ((im->reset.rcwl & HRCWL_SPMF) >> HRCWL_SPMF_SHIFT); + csb_clk = pci_sync_in * (1 + clkin_div) * spmf; + + sccr = im->clk.sccr; + +#if defined(CONFIG_MPC834x) || defined(CONFIG_MPC831x) || defined(CONFIG_MPC837x) + switch ((sccr & SCCR_TSEC1CM) >> SCCR_TSEC1CM_SHIFT) { + case 0: + tsec1_clk = 0; + break; + case 1: + tsec1_clk = csb_clk; + break; + case 2: + tsec1_clk = csb_clk / 2; + break; + case 3: + tsec1_clk = csb_clk / 3; + break; + default: + /* unkown SCCR_TSEC1CM value */ + return -2; + } + + switch ((sccr & SCCR_USBDRCM) >> SCCR_USBDRCM_SHIFT) { + case 0: + usbdr_clk = 0; + break; + case 1: + usbdr_clk = csb_clk; + break; + case 2: + usbdr_clk = csb_clk / 2; + break; + case 3: + usbdr_clk = csb_clk / 3; + break; + default: + /* unkown SCCR_USBDRCM value */ + return -3; + } +#endif + +#if defined(CONFIG_MPC834x) || defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315) + switch ((sccr & SCCR_TSEC2CM) >> SCCR_TSEC2CM_SHIFT) { + case 0: + tsec2_clk = 0; + break; + case 1: + tsec2_clk = csb_clk; + break; + case 2: + tsec2_clk = csb_clk / 2; + break; + case 3: + tsec2_clk = csb_clk / 3; + break; + default: + /* unkown SCCR_TSEC2CM value */ + return -4; + } +#elif defined(CONFIG_MPC8313) + tsec2_clk = tsec1_clk; + + if (!(sccr & SCCR_TSEC1ON)) + tsec1_clk = 0; + if (!(sccr & SCCR_TSEC2ON)) + tsec2_clk = 0; +#endif + +#if defined(CONFIG_MPC834x) + switch ((sccr & SCCR_USBMPHCM) >> SCCR_USBMPHCM_SHIFT) { + case 0: + usbmph_clk = 0; + break; + case 1: + usbmph_clk = csb_clk; + break; + case 2: + usbmph_clk = csb_clk / 2; + break; + case 3: + usbmph_clk = csb_clk / 3; + break; + default: + /* unkown SCCR_USBMPHCM value */ + return -5; + } + + if (usbmph_clk != 0 && usbdr_clk != 0 && usbmph_clk != usbdr_clk) { + /* if USB MPH clock is not disabled and + * USB DR clock is not disabled then + * USB MPH & USB DR must have the same rate + */ + return -6; + } +#endif + switch ((sccr & SCCR_ENCCM) >> SCCR_ENCCM_SHIFT) { + case 0: + enc_clk = 0; + break; + case 1: + enc_clk = csb_clk; + break; + case 2: + enc_clk = csb_clk / 2; + break; + case 3: + enc_clk = csb_clk / 3; + break; + default: + /* unkown SCCR_ENCCM value */ + return -7; + } + +#if defined(CONFIG_MPC837x) + switch ((sccr & SCCR_SDHCCM) >> SCCR_SDHCCM_SHIFT) { + case 0: + sdhc_clk = 0; + break; + case 1: + sdhc_clk = csb_clk; + break; + case 2: + sdhc_clk = csb_clk / 2; + break; + case 3: + sdhc_clk = csb_clk / 3; + break; + default: + /* unkown SCCR_SDHCCM value */ + return -8; + } +#endif +#if defined(CONFIG_MPC8315) + switch ((sccr & SCCR_TDMCM) >> SCCR_TDMCM_SHIFT) { + case 0: + tdm_clk = 0; + break; + case 1: + tdm_clk = csb_clk; + break; + case 2: + tdm_clk = csb_clk / 2; + break; + case 3: + tdm_clk = csb_clk / 3; + break; + default: + /* unkown SCCR_TDMCM value */ + return -8; + } +#endif + +#if defined(CONFIG_MPC834x) + i2c1_clk = tsec2_clk; +#elif defined(CONFIG_MPC8360) + i2c1_clk = csb_clk; +#elif defined(CONFIG_MPC832x) + i2c1_clk = enc_clk; +#elif defined(CONFIG_MPC831x) + i2c1_clk = enc_clk; +#elif defined(CONFIG_MPC837x) + i2c1_clk = sdhc_clk; +#endif +#if !defined(CONFIG_MPC832x) + i2c2_clk = csb_clk; /* i2c-2 clk is equal to csb clk */ +#endif + +#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC831x) + switch ((sccr & SCCR_PCIEXP1CM) >> SCCR_PCIEXP1CM_SHIFT) { + case 0: + pciexp1_clk = 0; + break; + case 1: + pciexp1_clk = csb_clk; + break; + case 2: + pciexp1_clk = csb_clk / 2; + break; + case 3: + pciexp1_clk = csb_clk / 3; + break; + default: + /* unkown SCCR_PCIEXP1CM value */ + return -9; + } + + switch ((sccr & SCCR_PCIEXP2CM) >> SCCR_PCIEXP2CM_SHIFT) { + case 0: + pciexp2_clk = 0; + break; + case 1: + pciexp2_clk = csb_clk; + break; + case 2: + pciexp2_clk = csb_clk / 2; + break; + case 3: + pciexp2_clk = csb_clk / 3; + break; + default: + /* unkown SCCR_PCIEXP2CM value */ + return -10; + } +#endif + +#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315) + switch ((sccr & SCCR_SATA1CM) >> SCCR_SATA1CM_SHIFT) { + case 0: + sata_clk = 0; + break; + case 1: + sata_clk = csb_clk; + break; + case 2: + sata_clk = csb_clk / 2; + break; + case 3: + sata_clk = csb_clk / 3; + break; + default: + /* unkown SCCR_SATACM value */ + return -11; + } +#endif + + lbiu_clk = csb_clk * + (1 + ((im->reset.rcwl & HRCWL_LBIUCM) >> HRCWL_LBIUCM_SHIFT)); + lcrr = (im->lbus.lcrr & LCRR_CLKDIV) >> LCRR_CLKDIV_SHIFT; + switch (lcrr) { + case 2: + case 4: + case 8: + lclk_clk = lbiu_clk / lcrr; + break; + default: + /* unknown lcrr */ + return -12; + } + + mem_clk = csb_clk * + (1 + ((im->reset.rcwl & HRCWL_DDRCM) >> HRCWL_DDRCM_SHIFT)); + corepll = (im->reset.rcwl & HRCWL_COREPLL) >> HRCWL_COREPLL_SHIFT; +#if defined(CONFIG_MPC8360) + mem_sec_clk = csb_clk * (1 + + ((im->reset.rcwl & HRCWL_LBIUCM) >> HRCWL_LBIUCM_SHIFT)); +#endif + + corecnf_tab_index = ((corepll & 0x1F) << 2) | ((corepll & 0x60) >> 5); + if (corecnf_tab_index > (sizeof(corecnf_tab) / sizeof(corecnf_t))) { + /* corecnf_tab_index is too high, possibly worng value */ + return -11; + } + switch (corecnf_tab[corecnf_tab_index].core_csb_ratio) { + case _byp: + case _x1: + case _1x: + core_clk = csb_clk; + break; + case _1_5x: + core_clk = (3 * csb_clk) / 2; + break; + case _2x: + core_clk = 2 * csb_clk; + break; + case _2_5x: + core_clk = (5 * csb_clk) / 2; + break; + case _3x: + core_clk = 3 * csb_clk; + break; + default: + /* unkown core to csb ratio */ + return -13; + } + +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832x) + qepmf = (im->reset.rcwl & HRCWL_CEPMF) >> HRCWL_CEPMF_SHIFT; + qepdf = (im->reset.rcwl & HRCWL_CEPDF) >> HRCWL_CEPDF_SHIFT; + qe_clk = (pci_sync_in * qepmf) / (1 + qepdf); + brg_clk = qe_clk / 2; +#endif + + gd->csb_clk = csb_clk; +#if defined(CONFIG_MPC834x) || defined(CONFIG_MPC831x) || defined(CONFIG_MPC837x) + gd->tsec1_clk = tsec1_clk; + gd->tsec2_clk = tsec2_clk; + gd->usbdr_clk = usbdr_clk; +#endif +#if defined(CONFIG_MPC834x) + gd->usbmph_clk = usbmph_clk; +#endif +#if defined(CONFIG_MPC8315) + gd->tdm_clk = tdm_clk; +#endif +#if defined(CONFIG_MPC837x) + gd->sdhc_clk = sdhc_clk; +#endif + gd->core_clk = core_clk; + gd->i2c1_clk = i2c1_clk; +#if !defined(CONFIG_MPC832x) + gd->i2c2_clk = i2c2_clk; +#endif + gd->enc_clk = enc_clk; + gd->lbiu_clk = lbiu_clk; + gd->lclk_clk = lclk_clk; + gd->mem_clk = mem_clk; +#if defined(CONFIG_MPC8360) + gd->mem_sec_clk = mem_sec_clk; +#endif +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832x) + gd->qe_clk = qe_clk; + gd->brg_clk = brg_clk; +#endif +#if defined(CONFIG_MPC837x) + gd->pciexp1_clk = pciexp1_clk; + gd->pciexp2_clk = pciexp2_clk; +#endif +#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315) + gd->sata_clk = sata_clk; +#endif + gd->pci_clk = pci_sync_in; + gd->cpu_clk = gd->core_clk; + gd->bus_clk = gd->csb_clk; + return 0; + +} + +/******************************************** + * get_bus_freq + * return system bus freq in Hz + *********************************************/ +ulong get_bus_freq(ulong dummy) +{ + return gd->csb_clk; +} + +int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + char buf[32]; + + printf("Clock configuration:\n"); + printf(" Core: %-4s MHz\n", strmhz(buf, gd->core_clk)); + printf(" Coherent System Bus: %-4s MHz\n", strmhz(buf, gd->csb_clk)); +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832x) + printf(" QE: %-4s MHz\n", strmhz(buf, gd->qe_clk)); + printf(" BRG: %-4s MHz\n", strmhz(buf, gd->brg_clk)); +#endif + printf(" Local Bus Controller:%-4s MHz\n", strmhz(buf, gd->lbiu_clk)); + printf(" Local Bus: %-4s MHz\n", strmhz(buf, gd->lclk_clk)); + printf(" DDR: %-4s MHz\n", strmhz(buf, gd->mem_clk)); +#if defined(CONFIG_MPC8360) + printf(" DDR Secondary: %-4s MHz\n", strmhz(buf, gd->mem_sec_clk)); +#endif + printf(" SEC: %-4s MHz\n", strmhz(buf, gd->enc_clk)); + printf(" I2C1: %-4s MHz\n", strmhz(buf, gd->i2c1_clk)); +#if !defined(CONFIG_MPC832x) + printf(" I2C2: %-4s MHz\n", strmhz(buf, gd->i2c2_clk)); +#endif +#if defined(CONFIG_MPC8315) + printf(" TDM: %-4s MHz\n", strmhz(buf, gd->tdm_clk)); +#endif +#if defined(CONFIG_MPC837x) + printf(" SDHC: %-4s MHz\n", strmhz(buf, gd->sdhc_clk)); +#endif +#if defined(CONFIG_MPC834x) || defined(CONFIG_MPC831x) || defined(CONFIG_MPC837x) + printf(" TSEC1: %-4s MHz\n", strmhz(buf, gd->tsec1_clk)); + printf(" TSEC2: %-4s MHz\n", strmhz(buf, gd->tsec2_clk)); + printf(" USB DR: %-4s MHz\n", strmhz(buf, gd->usbdr_clk)); +#endif +#if defined(CONFIG_MPC834x) + printf(" USB MPH: %-4s MHz\n", strmhz(buf, gd->usbmph_clk)); +#endif +#if defined(CONFIG_MPC837x) + printf(" PCIEXP1: %-4s MHz\n", strmhz(buf, gd->pciexp1_clk)); + printf(" PCIEXP2: %-4s MHz\n", strmhz(buf, gd->pciexp2_clk)); +#endif +#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315) + printf(" SATA: %-4s MHz\n", strmhz(buf, gd->sata_clk)); +#endif + return 0; +} + +U_BOOT_CMD(clocks, 1, 0, do_clocks, + "print clock configuration", + " clocks" +); diff --git a/arch/ppc/cpu/mpc83xx/start.S b/arch/ppc/cpu/mpc83xx/start.S new file mode 100644 index 0000000..68bb620 --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/start.S @@ -0,0 +1,1207 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2000, 2001,2002 Wolfgang Denk <wd@denx.de> + * Copyright Freescale Semiconductor, Inc. 2004, 2006, 2008. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * U-Boot - Startup Code for MPC83xx PowerPC based Embedded Boards + */ + +#include <config.h> +#include <mpc83xx.h> +#include <timestamp.h> +#include <version.h> + +#define CONFIG_83XX 1 /* needed for Linux kernel header files*/ +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "MPC83XX" +#endif + +/* We don't want the MMU yet. + */ +#undef MSR_KERNEL + +/* + * Floating Point enable, Machine Check and Recoverable Interr. + */ +#ifdef DEBUG +#define MSR_KERNEL (MSR_FP|MSR_RI) +#else +#define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI) +#endif + +#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SYS_RAMBOOT) +#define CONFIG_SYS_FLASHBOOT +#endif + +/* + * Set up GOT: Global Offset Table + * + * Use r12 to access the GOT + */ + START_GOT + GOT_ENTRY(_GOT2_TABLE_) + GOT_ENTRY(__bss_start) + GOT_ENTRY(_end) + +#ifndef CONFIG_NAND_SPL + GOT_ENTRY(_FIXUP_TABLE_) + GOT_ENTRY(_start) + GOT_ENTRY(_start_of_vectors) + GOT_ENTRY(_end_of_vectors) + GOT_ENTRY(transfer_to_handler) +#endif + END_GOT + +/* + * The Hard Reset Configuration Word (HRCW) table is in the first 64 + * (0x40) bytes of flash. It has 8 bytes, but each byte is repeated 8 + * times so the processor can fetch it out of flash whether the flash + * is 8, 16, 32, or 64 bits wide (hardware trickery). + */ + .text +#define _HRCW_TABLE_ENTRY(w) \ + .fill 8,1,(((w)>>24)&0xff); \ + .fill 8,1,(((w)>>16)&0xff); \ + .fill 8,1,(((w)>> 8)&0xff); \ + .fill 8,1,(((w) )&0xff) + + _HRCW_TABLE_ENTRY(CONFIG_SYS_HRCW_LOW) + _HRCW_TABLE_ENTRY(CONFIG_SYS_HRCW_HIGH) + +/* + * Magic number and version string - put it after the HRCW since it + * cannot be first in flash like it is in many other processors. + */ + .long 0x27051956 /* U-Boot Magic Number */ + + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" + .ascii " ", CONFIG_IDENT_STRING, "\0" + + .align 2 + + .globl enable_addr_trans +enable_addr_trans: + /* enable address translation */ + mfmsr r5 + ori r5, r5, (MSR_IR | MSR_DR) + mtmsr r5 + isync + blr + + .globl disable_addr_trans +disable_addr_trans: + /* disable address translation */ + mflr r4 + mfmsr r3 + andi. r0, r3, (MSR_IR | MSR_DR) + beqlr + andc r3, r3, r0 + mtspr SRR0, r4 + mtspr SRR1, r3 + rfi + + .globl get_pvr +get_pvr: + mfspr r3, PVR + blr + + .globl ppcDWstore +ppcDWstore: + lfd 1, 0(r4) + stfd 1, 0(r3) + blr + + .globl ppcDWload +ppcDWload: + lfd 1, 0(r3) + stfd 1, 0(r4) + blr + +#ifndef CONFIG_DEFAULT_IMMR +#error CONFIG_DEFAULT_IMMR must be defined +#endif /* CONFIG_SYS_DEFAULT_IMMR */ +#ifndef CONFIG_SYS_IMMR +#define CONFIG_SYS_IMMR CONFIG_DEFAULT_IMMR +#endif /* CONFIG_SYS_IMMR */ + +/* + * After configuration, a system reset exception is executed using the + * vector at offset 0x100 relative to the base set by MSR[IP]. If + * MSR[IP] is 0, the base address is 0x00000000. If MSR[IP] is 1, the + * base address is 0xfff00000. In the case of a Power On Reset or Hard + * Reset, the value of MSR[IP] is determined by the CIP field in the + * HRCW. + * + * Other bits in the HRCW set up the Base Address and Port Size in BR0. + * This determines the location of the boot ROM (flash or EPROM) in the + * processor's address space at boot time. As long as the HRCW is set up + * so that we eventually end up executing the code below when the + * processor executes the reset exception, the actual values used should + * not matter. + * + * Once we have got here, the address mask in OR0 is cleared so that the + * bottom 32K of the boot ROM is effectively repeated all throughout the + * processor's address space, after which we can jump to the absolute + * address at which the boot ROM was linked at compile time, and proceed + * to initialise the memory controller without worrying if the rug will + * be pulled out from under us, so to speak (it will be fine as long as + * we configure BR0 with the same boot ROM link address). + */ + . = EXC_OFF_SYS_RESET + + .globl _start +_start: /* time t 0 */ + li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH*/ + nop + b boot_cold + + . = EXC_OFF_SYS_RESET + 0x10 + + .globl _start_warm +_start_warm: + li r21, BOOTFLAG_WARM /* Software reboot */ + b boot_warm + + +boot_cold: /* time t 3 */ + lis r4, CONFIG_DEFAULT_IMMR@h + nop +boot_warm: /* time t 5 */ + mfmsr r5 /* save msr contents */ + + /* 83xx manuals prescribe a specific sequence for updating IMMRBAR. */ + bl 1f +1: mflr r7 + + lis r3, CONFIG_SYS_IMMR@h + ori r3, r3, CONFIG_SYS_IMMR@l + + lwz r6, IMMRBAR(r4) + isync + + stw r3, IMMRBAR(r4) + lwz r6, 0(r7) /* Arbitrary external load */ + isync + + lwz r6, IMMRBAR(r3) + isync + + /* Initialise the E300 processor core */ + /*------------------------------------------*/ + +#ifdef CONFIG_NAND_SPL + /* The FCM begins execution after only the first page + * is loaded. Wait for the rest before branching + * to another flash page. + */ +1: lwz r6, 0x50b0(r3) + andi. r6, r6, 1 + beq 1b +#endif + + bl init_e300_core + +#ifdef CONFIG_SYS_FLASHBOOT + + /* Inflate flash location so it appears everywhere, calculate */ + /* the absolute address in final location of the FLASH, jump */ + /* there and deflate the flash size back to minimal size */ + /*------------------------------------------------------------*/ + bl map_flash_by_law1 + lis r4, (CONFIG_SYS_MONITOR_BASE)@h + ori r4, r4, (CONFIG_SYS_MONITOR_BASE)@l + addi r5, r4, in_flash - _start + EXC_OFF_SYS_RESET + mtlr r5 + blr +in_flash: +#if 1 /* Remapping flash with LAW0. */ + bl remap_flash_by_law0 +#endif +#endif /* CONFIG_SYS_FLASHBOOT */ + + /* setup the bats */ + bl setup_bats + sync + + /* + * Cache must be enabled here for stack-in-cache trick. + * This means we need to enable the BATS. + * This means: + * 1) for the EVB, original gt regs need to be mapped + * 2) need to have an IBAT for the 0xf region, + * we are running there! + * Cache should be turned on after BATs, since by default + * everything is write-through. + * The init-mem BAT can be reused after reloc. The old + * gt-regs BAT can be reused after board_init_f calls + * board_early_init_f (EVB only). + */ + /* enable address translation */ + bl enable_addr_trans + sync + + /* enable the data cache */ + bl dcache_enable + sync +#ifdef CONFIG_SYS_INIT_RAM_LOCK + bl lock_ram_in_cache + sync +#endif + + /* set up the stack pointer in our newly created + * cache-ram (r1) */ + lis r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@h + ori r1, r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@l + + li r0, 0 /* Make room for stack frame header and */ + stwu r0, -4(r1) /* clear final stack frame so that */ + stwu r0, -4(r1) /* stack backtraces terminate cleanly */ + + + /* let the C-code set up the rest */ + /* */ + /* Be careful to keep code relocatable & stack humble */ + /*------------------------------------------------------*/ + + GET_GOT /* initialize GOT access */ + + /* r3: IMMR */ + lis r3, CONFIG_SYS_IMMR@h + /* run low-level CPU init code (in Flash)*/ + bl cpu_init_f + + /* r3: BOOTFLAG */ + mr r3, r21 + /* run 1st part of board init code (in Flash)*/ + bl board_init_f + +#ifndef CONFIG_NAND_SPL +/* + * Vector Table + */ + + .globl _start_of_vectors +_start_of_vectors: + +/* Machine check */ + STD_EXCEPTION(0x200, MachineCheck, MachineCheckException) + +/* Data Storage exception. */ + STD_EXCEPTION(0x300, DataStorage, UnknownException) + +/* Instruction Storage exception. */ + STD_EXCEPTION(0x400, InstStorage, UnknownException) + +/* External Interrupt exception. */ +#ifndef FIXME + STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) +#endif + +/* Alignment exception. */ + . = 0x600 +Alignment: + EXCEPTION_PROLOG(SRR0, SRR1) + mfspr r4,DAR + stw r4,_DAR(r21) + mfspr r5,DSISR + stw r5,_DSISR(r21) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) + +/* Program check exception */ + . = 0x700 +ProgramCheck: + EXCEPTION_PROLOG(SRR0, SRR1) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, + MSR_KERNEL, COPY_EE) + + STD_EXCEPTION(0x800, FPUnavailable, UnknownException) + + /* I guess we could implement decrementer, and may have + * to someday for timekeeping. + */ + STD_EXCEPTION(0x900, Decrementer, timer_interrupt) + + STD_EXCEPTION(0xa00, Trap_0a, UnknownException) + STD_EXCEPTION(0xb00, Trap_0b, UnknownException) + STD_EXCEPTION(0xc00, SystemCall, UnknownException) + STD_EXCEPTION(0xd00, SingleStep, UnknownException) + + STD_EXCEPTION(0xe00, Trap_0e, UnknownException) + STD_EXCEPTION(0xf00, Trap_0f, UnknownException) + + STD_EXCEPTION(0x1000, InstructionTLBMiss, UnknownException) + STD_EXCEPTION(0x1100, DataLoadTLBMiss, UnknownException) + STD_EXCEPTION(0x1200, DataStoreTLBMiss, UnknownException) +#ifdef DEBUG + . = 0x1300 + /* + * This exception occurs when the program counter matches the + * Instruction Address Breakpoint Register (IABR). + * + * I want the cpu to halt if this occurs so I can hunt around + * with the debugger and look at things. + * + * When DEBUG is defined, both machine check enable (in the MSR) + * and checkstop reset enable (in the reset mode register) are + * turned off and so a checkstop condition will result in the cpu + * halting. + * + * I force the cpu into a checkstop condition by putting an illegal + * instruction here (at least this is the theory). + * + * well - that didnt work, so just do an infinite loop! + */ +1: b 1b +#else + STD_EXCEPTION(0x1300, InstructionBreakpoint, DebugException) +#endif + STD_EXCEPTION(0x1400, SMI, UnknownException) + + STD_EXCEPTION(0x1500, Trap_15, UnknownException) + STD_EXCEPTION(0x1600, Trap_16, UnknownException) + STD_EXCEPTION(0x1700, Trap_17, UnknownException) + STD_EXCEPTION(0x1800, Trap_18, UnknownException) + STD_EXCEPTION(0x1900, Trap_19, UnknownException) + STD_EXCEPTION(0x1a00, Trap_1a, UnknownException) + STD_EXCEPTION(0x1b00, Trap_1b, UnknownException) + STD_EXCEPTION(0x1c00, Trap_1c, UnknownException) + STD_EXCEPTION(0x1d00, Trap_1d, UnknownException) + STD_EXCEPTION(0x1e00, Trap_1e, UnknownException) + STD_EXCEPTION(0x1f00, Trap_1f, UnknownException) + STD_EXCEPTION(0x2000, Trap_20, UnknownException) + STD_EXCEPTION(0x2100, Trap_21, UnknownException) + STD_EXCEPTION(0x2200, Trap_22, UnknownException) + STD_EXCEPTION(0x2300, Trap_23, UnknownException) + STD_EXCEPTION(0x2400, Trap_24, UnknownException) + STD_EXCEPTION(0x2500, Trap_25, UnknownException) + STD_EXCEPTION(0x2600, Trap_26, UnknownException) + STD_EXCEPTION(0x2700, Trap_27, UnknownException) + STD_EXCEPTION(0x2800, Trap_28, UnknownException) + STD_EXCEPTION(0x2900, Trap_29, UnknownException) + STD_EXCEPTION(0x2a00, Trap_2a, UnknownException) + STD_EXCEPTION(0x2b00, Trap_2b, UnknownException) + STD_EXCEPTION(0x2c00, Trap_2c, UnknownException) + STD_EXCEPTION(0x2d00, Trap_2d, UnknownException) + STD_EXCEPTION(0x2e00, Trap_2e, UnknownException) + STD_EXCEPTION(0x2f00, Trap_2f, UnknownException) + + + .globl _end_of_vectors +_end_of_vectors: + + . = 0x3000 + +/* + * This code finishes saving the registers to the exception frame + * and jumps to the appropriate handler for the exception. + * Register r21 is pointer into trap frame, r1 has new stack pointer. + */ + .globl transfer_to_handler +transfer_to_handler: + stw r22,_NIP(r21) + lis r22,MSR_POW@h + andc r23,r23,r22 + stw r23,_MSR(r21) + SAVE_GPR(7, r21) + SAVE_4GPRS(8, r21) + SAVE_8GPRS(12, r21) + SAVE_8GPRS(24, r21) + mflr r23 + andi. r24,r23,0x3f00 /* get vector offset */ + stw r24,TRAP(r21) + li r22,0 + stw r22,RESULT(r21) + lwz r24,0(r23) /* virtual address of handler */ + lwz r23,4(r23) /* where to go when done */ + mtspr SRR0,r24 + mtspr SRR1,r20 + mtlr r23 + SYNC + rfi /* jump to handler, enable MMU */ + +int_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SRR0,r2 + mtspr SRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfi +#endif /* !CONFIG_NAND_SPL */ + +/* + * This code initialises the E300 processor core + * (conforms to PowerPC 603e spec) + * Note: expects original MSR contents to be in r5. + */ + .globl init_e300_core +init_e300_core: /* time t 10 */ + /* Initialize machine status; enable machine check interrupt */ + /*-----------------------------------------------------------*/ + + li r3, MSR_KERNEL /* Set ME and RI flags */ + rlwimi r3, r5, 0, 25, 25 /* preserve IP bit set by HRCW */ +#ifdef DEBUG + rlwimi r3, r5, 0, 21, 22 /* debugger might set SE & BE bits */ +#endif + SYNC /* Some chip revs need this... */ + mtmsr r3 + SYNC + mtspr SRR1, r3 /* Make SRR1 match MSR */ + + + lis r3, CONFIG_SYS_IMMR@h +#if defined(CONFIG_WATCHDOG) + /* Initialise the Wathcdog values and reset it (if req) */ + /*------------------------------------------------------*/ + lis r4, CONFIG_SYS_WATCHDOG_VALUE + ori r4, r4, (SWCRR_SWEN | SWCRR_SWRI | SWCRR_SWPR) + stw r4, SWCRR(r3) + + /* and reset it */ + + li r4, 0x556C + sth r4, SWSRR@l(r3) + li r4, -0x55C7 + sth r4, SWSRR@l(r3) +#else + /* Disable Wathcdog */ + /*-------------------*/ + lwz r4, SWCRR(r3) + /* Check to see if its enabled for disabling + once disabled by SW you can't re-enable */ + andi. r4, r4, 0x4 + beq 1f + xor r4, r4, r4 + stw r4, SWCRR(r3) +1: +#endif /* CONFIG_WATCHDOG */ + +#if defined(CONFIG_MASK_AER_AO) + /* Write the Arbiter Event Enable to mask Address Only traps. */ + /* This prevents the dcbz instruction from being trapped when */ + /* HID0_ABE Address Broadcast Enable is set and the MEMORY */ + /* COHERENCY bit is set in the WIMG bits, which is often */ + /* needed for PCI operation. */ + lwz r4, 0x0808(r3) + rlwinm r0, r4, 0, ~AER_AO + stw r0, 0x0808(r3) +#endif /* CONFIG_MASK_AER_AO */ + + /* Initialize the Hardware Implementation-dependent Registers */ + /* HID0 also contains cache control */ + /* - force invalidation of data and instruction caches */ + /*------------------------------------------------------*/ + + lis r3, CONFIG_SYS_HID0_INIT@h + ori r3, r3, (CONFIG_SYS_HID0_INIT | HID0_ICFI | HID0_DCFI)@l + SYNC + mtspr HID0, r3 + + lis r3, CONFIG_SYS_HID0_FINAL@h + ori r3, r3, (CONFIG_SYS_HID0_FINAL & ~(HID0_ICFI | HID0_DCFI))@l + SYNC + mtspr HID0, r3 + + lis r3, CONFIG_SYS_HID2@h + ori r3, r3, CONFIG_SYS_HID2@l + SYNC + mtspr HID2, r3 + + /* Done! */ + /*------------------------------*/ + blr + + /* setup_bats - set them up to some initial state */ + .globl setup_bats +setup_bats: + addis r0, r0, 0x0000 + + /* IBAT 0 */ + addis r4, r0, CONFIG_SYS_IBAT0L@h + ori r4, r4, CONFIG_SYS_IBAT0L@l + addis r3, r0, CONFIG_SYS_IBAT0U@h + ori r3, r3, CONFIG_SYS_IBAT0U@l + mtspr IBAT0L, r4 + mtspr IBAT0U, r3 + + /* DBAT 0 */ + addis r4, r0, CONFIG_SYS_DBAT0L@h + ori r4, r4, CONFIG_SYS_DBAT0L@l + addis r3, r0, CONFIG_SYS_DBAT0U@h + ori r3, r3, CONFIG_SYS_DBAT0U@l + mtspr DBAT0L, r4 + mtspr DBAT0U, r3 + + /* IBAT 1 */ + addis r4, r0, CONFIG_SYS_IBAT1L@h + ori r4, r4, CONFIG_SYS_IBAT1L@l + addis r3, r0, CONFIG_SYS_IBAT1U@h + ori r3, r3, CONFIG_SYS_IBAT1U@l + mtspr IBAT1L, r4 + mtspr IBAT1U, r3 + + /* DBAT 1 */ + addis r4, r0, CONFIG_SYS_DBAT1L@h + ori r4, r4, CONFIG_SYS_DBAT1L@l + addis r3, r0, CONFIG_SYS_DBAT1U@h + ori r3, r3, CONFIG_SYS_DBAT1U@l + mtspr DBAT1L, r4 + mtspr DBAT1U, r3 + + /* IBAT 2 */ + addis r4, r0, CONFIG_SYS_IBAT2L@h + ori r4, r4, CONFIG_SYS_IBAT2L@l + addis r3, r0, CONFIG_SYS_IBAT2U@h + ori r3, r3, CONFIG_SYS_IBAT2U@l + mtspr IBAT2L, r4 + mtspr IBAT2U, r3 + + /* DBAT 2 */ + addis r4, r0, CONFIG_SYS_DBAT2L@h + ori r4, r4, CONFIG_SYS_DBAT2L@l + addis r3, r0, CONFIG_SYS_DBAT2U@h + ori r3, r3, CONFIG_SYS_DBAT2U@l + mtspr DBAT2L, r4 + mtspr DBAT2U, r3 + + /* IBAT 3 */ + addis r4, r0, CONFIG_SYS_IBAT3L@h + ori r4, r4, CONFIG_SYS_IBAT3L@l + addis r3, r0, CONFIG_SYS_IBAT3U@h + ori r3, r3, CONFIG_SYS_IBAT3U@l + mtspr IBAT3L, r4 + mtspr IBAT3U, r3 + + /* DBAT 3 */ + addis r4, r0, CONFIG_SYS_DBAT3L@h + ori r4, r4, CONFIG_SYS_DBAT3L@l + addis r3, r0, CONFIG_SYS_DBAT3U@h + ori r3, r3, CONFIG_SYS_DBAT3U@l + mtspr DBAT3L, r4 + mtspr DBAT3U, r3 + +#ifdef CONFIG_HIGH_BATS + /* IBAT 4 */ + addis r4, r0, CONFIG_SYS_IBAT4L@h + ori r4, r4, CONFIG_SYS_IBAT4L@l + addis r3, r0, CONFIG_SYS_IBAT4U@h + ori r3, r3, CONFIG_SYS_IBAT4U@l + mtspr IBAT4L, r4 + mtspr IBAT4U, r3 + + /* DBAT 4 */ + addis r4, r0, CONFIG_SYS_DBAT4L@h + ori r4, r4, CONFIG_SYS_DBAT4L@l + addis r3, r0, CONFIG_SYS_DBAT4U@h + ori r3, r3, CONFIG_SYS_DBAT4U@l + mtspr DBAT4L, r4 + mtspr DBAT4U, r3 + + /* IBAT 5 */ + addis r4, r0, CONFIG_SYS_IBAT5L@h + ori r4, r4, CONFIG_SYS_IBAT5L@l + addis r3, r0, CONFIG_SYS_IBAT5U@h + ori r3, r3, CONFIG_SYS_IBAT5U@l + mtspr IBAT5L, r4 + mtspr IBAT5U, r3 + + /* DBAT 5 */ + addis r4, r0, CONFIG_SYS_DBAT5L@h + ori r4, r4, CONFIG_SYS_DBAT5L@l + addis r3, r0, CONFIG_SYS_DBAT5U@h + ori r3, r3, CONFIG_SYS_DBAT5U@l + mtspr DBAT5L, r4 + mtspr DBAT5U, r3 + + /* IBAT 6 */ + addis r4, r0, CONFIG_SYS_IBAT6L@h + ori r4, r4, CONFIG_SYS_IBAT6L@l + addis r3, r0, CONFIG_SYS_IBAT6U@h + ori r3, r3, CONFIG_SYS_IBAT6U@l + mtspr IBAT6L, r4 + mtspr IBAT6U, r3 + + /* DBAT 6 */ + addis r4, r0, CONFIG_SYS_DBAT6L@h + ori r4, r4, CONFIG_SYS_DBAT6L@l + addis r3, r0, CONFIG_SYS_DBAT6U@h + ori r3, r3, CONFIG_SYS_DBAT6U@l + mtspr DBAT6L, r4 + mtspr DBAT6U, r3 + + /* IBAT 7 */ + addis r4, r0, CONFIG_SYS_IBAT7L@h + ori r4, r4, CONFIG_SYS_IBAT7L@l + addis r3, r0, CONFIG_SYS_IBAT7U@h + ori r3, r3, CONFIG_SYS_IBAT7U@l + mtspr IBAT7L, r4 + mtspr IBAT7U, r3 + + /* DBAT 7 */ + addis r4, r0, CONFIG_SYS_DBAT7L@h + ori r4, r4, CONFIG_SYS_DBAT7L@l + addis r3, r0, CONFIG_SYS_DBAT7U@h + ori r3, r3, CONFIG_SYS_DBAT7U@l + mtspr DBAT7L, r4 + mtspr DBAT7U, r3 +#endif + + isync + + /* invalidate all tlb's + * + * From the 603e User Manual: "The 603e provides the ability to + * invalidate a TLB entry. The TLB Invalidate Entry (tlbie) + * instruction invalidates the TLB entry indexed by the EA, and + * operates on both the instruction and data TLBs simultaneously + * invalidating four TLB entries (both sets in each TLB). The + * index corresponds to bits 15-19 of the EA. To invalidate all + * entries within both TLBs, 32 tlbie instructions should be + * issued, incrementing this field by one each time." + * + * "Note that the tlbia instruction is not implemented on the + * 603e." + * + * bits 15-19 correspond to addresses 0x00000000 to 0x0001F000 + * incrementing by 0x1000 each time. The code below is sort of + * based on code in "flush_tlbs" from arch/ppc/kernel/head.S + * + */ + lis r3, 0 + lis r5, 2 + +1: + tlbie r3 + addi r3, r3, 0x1000 + cmp 0, 0, r3, r5 + blt 1b + + blr + +/* Cache functions. + * + * Note: requires that all cache bits in + * HID0 are in the low half word. + */ + .globl icache_enable +icache_enable: + mfspr r3, HID0 + ori r3, r3, HID0_ICE + li r4, HID0_ICFI|HID0_ILOCK + andc r3, r3, r4 + ori r4, r3, HID0_ICFI + isync + mtspr HID0, r4 /* sets enable and invalidate, clears lock */ + isync + mtspr HID0, r3 /* clears invalidate */ + blr + + .globl icache_disable +icache_disable: + mfspr r3, HID0 + lis r4, 0 + ori r4, r4, HID0_ICE|HID0_ICFI|HID0_ILOCK + andc r3, r3, r4 + isync + mtspr HID0, r3 /* clears invalidate, enable and lock */ + blr + + .globl icache_status +icache_status: + mfspr r3, HID0 + rlwinm r3, r3, (31 - HID0_ICE_SHIFT + 1), 31, 31 + blr + + .globl dcache_enable +dcache_enable: + mfspr r3, HID0 + li r5, HID0_DCFI|HID0_DLOCK + andc r3, r3, r5 + ori r3, r3, HID0_DCE + sync + mtspr HID0, r3 /* enable, no invalidate */ + blr + + .globl dcache_disable +dcache_disable: + mflr r4 + bl flush_dcache /* uses r3 and r5 */ + mfspr r3, HID0 + li r5, HID0_DCE|HID0_DLOCK + andc r3, r3, r5 + ori r5, r3, HID0_DCFI + sync + mtspr HID0, r5 /* sets invalidate, clears enable and lock */ + sync + mtspr HID0, r3 /* clears invalidate */ + mtlr r4 + blr + + .globl dcache_status +dcache_status: + mfspr r3, HID0 + rlwinm r3, r3, (31 - HID0_DCE_SHIFT + 1), 31, 31 + blr + + .globl flush_dcache +flush_dcache: + lis r3, 0 + lis r5, CONFIG_SYS_CACHELINE_SIZE +1: cmp 0, 1, r3, r5 + bge 2f + lwz r5, 0(r3) + lis r5, CONFIG_SYS_CACHELINE_SIZE + addi r3, r3, 0x4 + b 1b +2: blr + +/*-------------------------------------------------------------------*/ + +/* + * void relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * r3 = dest + * r4 = src + * r5 = length in bytes + * r6 = cachelinesize + */ + .globl relocate_code +relocate_code: + mr r1, r3 /* Set new stack pointer */ + mr r9, r4 /* Save copy of Global Data pointer */ + mr r10, r5 /* Save copy of Destination Address */ + + GET_GOT + mr r3, r5 /* Destination Address */ + lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ + ori r4, r4, CONFIG_SYS_MONITOR_BASE@l + lwz r5, GOT(__bss_start) + sub r5, r5, r4 + li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */ + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + * + Destination Address + * + * Offset: + */ + sub r15, r10, r4 + + /* First our own GOT */ + add r12, r12, r15 + /* then the one used by the C code */ + add r30, r30, r15 + + /* + * Now relocate code + */ + + cmplw cr1,r3,r4 + addi r0,r5,3 + srwi. r0,r0,2 + beq cr1,4f /* In place copy is not necessary */ + beq 7f /* Protect against 0 count */ + mtctr r0 + bge cr1,2f + la r8,-4(r4) + la r7,-4(r3) + + /* copy */ +1: lwzu r0,4(r8) + stwu r0,4(r7) + bdnz 1b + + addi r0,r5,3 + srwi. r0,r0,2 + mtctr r0 + la r8,-4(r4) + la r7,-4(r3) + + /* and compare */ +20: lwzu r20,4(r8) + lwzu r21,4(r7) + xor. r22, r20, r21 + bne 30f + bdnz 20b + b 4f + + /* compare failed */ +30: li r3, 0 + blr + +2: slwi r0,r0,2 /* re copy in reverse order ... y do we needed it? */ + add r8,r4,r0 + add r7,r3,r0 +3: lwzu r0,-4(r8) + stwu r0,-4(r7) + bdnz 3b + +/* + * Now flush the cache: note that we must start from a cache aligned + * address. Otherwise we might miss one cache line. + */ +4: cmpwi r6,0 + add r5,r3,r5 + beq 7f /* Always flush prefetch queue in any case */ + subi r0,r6,1 + andc r3,r3,r0 + mr r4,r3 +5: dcbst 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 5b + sync /* Wait for all dcbst to complete on bus */ + mr r4,r3 +6: icbi 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 6b +7: sync /* Wait for all icbi to complete on bus */ + isync + +/* + * We are done. Do not return, instead branch to second part of board + * initialization, now running from RAM. + */ + addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET + mtlr r0 + blr + +in_ram: + + /* + * Relocation Function, r12 point to got2+0x8000 + * + * Adjust got2 pointers, no need to check for 0, this code + * already puts a few entries in the table. + */ + li r0,__got2_entries@sectoff@l + la r3,GOT(_GOT2_TABLE_) + lwz r11,GOT(_GOT2_TABLE_) + mtctr r0 + sub r11,r3,r11 + addi r3,r3,-4 +1: lwzu r0,4(r3) + cmpwi r0,0 + beq- 2f + add r0,r0,r11 + stw r0,0(r3) +2: bdnz 1b + +#ifndef CONFIG_NAND_SPL + /* + * Now adjust the fixups and the pointers to the fixups + * in case we need to move ourselves again. + */ + li r0,__fixup_entries@sectoff@l + lwz r3,GOT(_FIXUP_TABLE_) + cmpwi r0,0 + mtctr r0 + addi r3,r3,-4 + beq 4f +3: lwzu r4,4(r3) + lwzux r0,r4,r11 + add r0,r0,r11 + stw r10,0(r3) + stw r0,0(r4) + bdnz 3b +4: +#endif + +clear_bss: + /* + * Now clear BSS segment + */ + lwz r3,GOT(__bss_start) +#if defined(CONFIG_HYMOD) + /* + * For HYMOD - the environment is the very last item in flash. + * The real .bss stops just before environment starts, so only + * clear up to that point. + * + * taken from mods for FADS board + */ + lwz r4,GOT(environment) +#else + lwz r4,GOT(_end) +#endif + + cmplw 0, r3, r4 + beq 6f + + li r0, 0 +5: + stw r0, 0(r3) + addi r3, r3, 4 + cmplw 0, r3, r4 + bne 5b +6: + + mr r3, r9 /* Global Data pointer */ + mr r4, r10 /* Destination Address */ + bl board_init_r + +#ifndef CONFIG_NAND_SPL + /* + * Copy exception vector code to low memory + * + * r3: dest_addr + * r7: source address, r8: end address, r9: target address + */ + .globl trap_init +trap_init: + mflr r4 /* save link register */ + GET_GOT + lwz r7, GOT(_start) + lwz r8, GOT(_end_of_vectors) + + li r9, 0x100 /* reset vector always at 0x100 */ + + cmplw 0, r7, r8 + bgelr /* return if r7>=r8 - just in case */ +1: + lwz r0, 0(r7) + stw r0, 0(r9) + addi r7, r7, 4 + addi r9, r9, 4 + cmplw 0, r7, r8 + bne 1b + + /* + * relocate `hdlr' and `int_return' entries + */ + li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET + li r8, Alignment - _start + EXC_OFF_SYS_RESET +2: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 2b + + li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET + li r8, SystemCall - _start + EXC_OFF_SYS_RESET +3: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 3b + + li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET + li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET +4: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 4b + + mfmsr r3 /* now that the vectors have */ + lis r7, MSR_IP@h /* relocated into low memory */ + ori r7, r7, MSR_IP@l /* MSR[IP] can be turned off */ + andc r3, r3, r7 /* (if it was on) */ + SYNC /* Some chip revs need this... */ + mtmsr r3 + SYNC + + mtlr r4 /* restore link register */ + blr + +#endif /* !CONFIG_NAND_SPL */ + +#ifdef CONFIG_SYS_INIT_RAM_LOCK +lock_ram_in_cache: + /* Allocate Initial RAM in data cache. + */ + lis r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@h + ori r3, r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@l + li r4, ((CONFIG_SYS_INIT_RAM_END & ~31) + \ + (CONFIG_SYS_INIT_RAM_ADDR & 31) + 31) / 32 + mtctr r4 +1: + dcbz r0, r3 + addi r3, r3, 32 + bdnz 1b + + /* Lock the data cache */ + mfspr r0, HID0 + ori r0, r0, HID0_DLOCK + sync + mtspr HID0, r0 + sync + blr + +#ifndef CONFIG_NAND_SPL +.globl unlock_ram_in_cache +unlock_ram_in_cache: + /* invalidate the INIT_RAM section */ + lis r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@h + ori r3, r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@l + li r4, ((CONFIG_SYS_INIT_RAM_END & ~31) + \ + (CONFIG_SYS_INIT_RAM_ADDR & 31) + 31) / 32 + mtctr r4 +1: icbi r0, r3 + dcbi r0, r3 + addi r3, r3, 32 + bdnz 1b + sync /* Wait for all icbi to complete on bus */ + isync + + /* Unlock the data cache and invalidate it */ + mfspr r3, HID0 + li r5, HID0_DLOCK|HID0_DCFI + andc r3, r3, r5 /* no invalidate, unlock */ + ori r5, r3, HID0_DCFI /* invalidate, unlock */ + sync + mtspr HID0, r5 /* invalidate, unlock */ + sync + mtspr HID0, r3 /* no invalidate, unlock */ + blr +#endif /* !CONFIG_NAND_SPL */ +#endif /* CONFIG_SYS_INIT_RAM_LOCK */ + +#ifdef CONFIG_SYS_FLASHBOOT +map_flash_by_law1: + /* When booting from ROM (Flash or EPROM), clear the */ + /* Address Mask in OR0 so ROM appears everywhere */ + /*----------------------------------------------------*/ + lis r3, (CONFIG_SYS_IMMR)@h /* r3 <= CONFIG_SYS_IMMR */ + lwz r4, OR0@l(r3) + li r5, 0x7fff /* r5 <= 0x00007FFFF */ + and r4, r4, r5 + stw r4, OR0@l(r3) /* OR0 <= OR0 & 0x00007FFFF */ + + /* As MPC8349E User's Manual presented, when RCW[BMS] is set to 0, + * system will boot from 0x0000_0100, and the LBLAWBAR0[BASE_ADDR] + * reset value is 0x00000; when RCW[BMS] is set to 1, system will boot + * from 0xFFF0_0100, and the LBLAWBAR0[BASE_ADDR] reset value is + * 0xFF800. From the hard resetting to here, the processor fetched and + * executed the instructions one by one. There is not absolutely + * jumping happened. Laterly, the u-boot code has to do an absolutely + * jumping to tell the CPU instruction fetching component what the + * u-boot TEXT base address is. Because the TEXT base resides in the + * boot ROM memory space, to garantee the code can run smoothly after + * that jumping, we must map in the entire boot ROM by Local Access + * Window. Sometimes, we desire an non-0x00000 or non-0xFF800 starting + * address for boot ROM, such as 0xFE000000. In this case, the default + * LBIU Local Access Widow 0 will not cover this memory space. So, we + * need another window to map in it. + */ + lis r4, (CONFIG_SYS_FLASH_BASE)@h + ori r4, r4, (CONFIG_SYS_FLASH_BASE)@l + stw r4, LBLAWBAR1(r3) /* LBLAWBAR1 <= CONFIG_SYS_FLASH_BASE */ + + /* Store 0x80000012 + log2(CONFIG_SYS_FLASH_SIZE) into LBLAWAR1 */ + lis r4, (0x80000012)@h + ori r4, r4, (0x80000012)@l + li r5, CONFIG_SYS_FLASH_SIZE +1: srawi. r5, r5, 1 /* r5 = r5 >> 1 */ + addi r4, r4, 1 + bne 1b + + stw r4, LBLAWAR1(r3) /* LBLAWAR1 <= 8MB Flash Size */ + blr + + /* Though all the LBIU Local Access Windows and LBC Banks will be + * initialized in the C code, we'd better configure boot ROM's + * window 0 and bank 0 correctly at here. + */ +remap_flash_by_law0: + /* Initialize the BR0 with the boot ROM starting address. */ + lwz r4, BR0(r3) + li r5, 0x7FFF + and r4, r4, r5 + lis r5, (CONFIG_SYS_FLASH_BASE & 0xFFFF8000)@h + ori r5, r5, (CONFIG_SYS_FLASH_BASE & 0xFFFF8000)@l + or r5, r5, r4 + stw r5, BR0(r3) /* r5 <= (CONFIG_SYS_FLASH_BASE & 0xFFFF8000) | (BR0 & 0x00007FFF) */ + + lwz r4, OR0(r3) + lis r5, ~((CONFIG_SYS_FLASH_SIZE << 4) - 1) + or r4, r4, r5 + stw r4, OR0(r3) + + lis r4, (CONFIG_SYS_FLASH_BASE)@h + ori r4, r4, (CONFIG_SYS_FLASH_BASE)@l + stw r4, LBLAWBAR0(r3) /* LBLAWBAR0 <= CONFIG_SYS_FLASH_BASE */ + + /* Store 0x80000012 + log2(CONFIG_SYS_FLASH_SIZE) into LBLAWAR0 */ + lis r4, (0x80000012)@h + ori r4, r4, (0x80000012)@l + li r5, CONFIG_SYS_FLASH_SIZE +1: srawi. r5, r5, 1 /* r5 = r5 >> 1 */ + addi r4, r4, 1 + bne 1b + stw r4, LBLAWAR0(r3) /* LBLAWAR0 <= Flash Size */ + + + xor r4, r4, r4 + stw r4, LBLAWBAR1(r3) + stw r4, LBLAWAR1(r3) /* Off LBIU LAW1 */ + blr +#endif /* CONFIG_SYS_FLASHBOOT */ diff --git a/arch/ppc/cpu/mpc83xx/traps.c b/arch/ppc/cpu/mpc83xx/traps.c new file mode 100644 index 0000000..9d71b8b --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/traps.c @@ -0,0 +1,266 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * This file handles the architecture-dependent parts of hardware + * exceptions + */ + +#include <common.h> +#include <command.h> +#include <kgdb.h> +#include <asm/processor.h> +#include <asm/mpc8349_pci.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* Returns 0 if exception not found and fixup otherwise. */ +extern unsigned long search_exception_table(unsigned long); + +#define END_OF_MEM (gd->bd->bi_memstart + gd->bd->bi_memsize) + +/* + * Trap & Exception support + */ + +void +print_backtrace(unsigned long *sp) +{ + int cnt = 0; + unsigned long i; + + puts ("Call backtrace: "); + while (sp) { + if ((uint)sp > END_OF_MEM) + break; + + i = sp[1]; + if (cnt++ % 7 == 0) + putc ('\n'); + printf("%08lX ", i); + if (cnt > 32) break; + sp = (unsigned long *)*sp; + } + putc ('\n'); +} + +void show_regs(struct pt_regs * regs) +{ + int i; + + printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n", + regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); + printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n", + regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0, + regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0, + regs->msr&MSR_IR ? 1 : 0, + regs->msr&MSR_DR ? 1 : 0); + + putc ('\n'); + for (i = 0; i < 32; i++) { + if ((i % 8) == 0) { + printf("GPR%02d: ", i); + } + + printf("%08lX ", regs->gpr[i]); + if ((i % 8) == 7) { + putc ('\n'); + } + } +} + + +void +_exception(int signr, struct pt_regs *regs) +{ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Exception in kernel pc %lx signal %d",regs->nip,signr); +} + +#ifdef CONFIG_PCI +void dump_pci (void) +{ +/* + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + printf ("PCI: err status %x err mask %x err ctrl %x\n", + le32_to_cpu (immap->im_pci.pci_esr), + le32_to_cpu (immap->im_pci.pci_emr), + le32_to_cpu (immap->im_pci.pci_ecr)); + printf (" error address %x error data %x ctrl %x\n", + le32_to_cpu (immap->im_pci.pci_eacr), + le32_to_cpu (immap->im_pci.pci_edcr), + le32_to_cpu (immap->im_pci.pci_eccr)); +*/ +} +#endif + +void +MachineCheckException(struct pt_regs *regs) +{ + unsigned long fixup; + + /* Probing PCI using config cycles cause this exception + * when a device is not present. Catch it and return to + * the PCI exception handler. + */ +#ifdef CONFIG_PCI +#if 0 + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; +#ifdef DEBUG + dump_pci(); +#endif + /* clear the error in the error status register */ + if(immap->im_pci.pci_esr & cpu_to_le32(PCI_ERROR_PCI_NO_RSP)) { + immap->im_pci.pci_esr = cpu_to_le32(PCI_ERROR_PCI_NO_RSP); + return; + } +#endif +#endif /* CONFIG_PCI */ + if ((fixup = search_exception_table(regs->nip)) != 0) { + regs->nip = fixup; + return; + } + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + puts ("Machine check in kernel mode.\n" + "Caused by (from msr): "); + printf("regs %p ",regs); + switch( regs->msr & 0x000F0000) { + case (0x80000000>>12): + puts ("Machine check signal - probably due to mm fault\n" + "with mmu off\n"); + break; + case (0x80000000>>13): + puts ("Transfer error ack signal\n"); + break; + case (0x80000000>>14): + puts ("Data parity signal\n"); + break; + case (0x80000000>>15): + puts ("Address parity signal\n"); + break; + default: + puts ("Unknown values in msr\n"); + } + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); +#ifdef CONFIG_PCI + dump_pci(); +#endif + panic("machine check"); +} + +void +AlignmentException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Alignment Exception"); +} + +void +ProgramCheckException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Program Check Exception"); +} + +void +SoftEmuException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Software Emulation Exception"); +} + + +void +UnknownException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", + regs->nip, regs->msr, regs->trap); + _exception(0, regs); +} + +#if defined(CONFIG_CMD_BEDBUG) +extern void do_bedbug_breakpoint(struct pt_regs *); +#endif + +void +DebugException(struct pt_regs *regs) +{ + printf("Debugger trap at @ %lx\n", regs->nip ); + show_regs(regs); +#if defined(CONFIG_CMD_BEDBUG) + do_bedbug_breakpoint( regs ); +#endif +} + +/* Probe an address by reading. If not present, return -1, otherwise + * return 0. + */ +int +addr_probe(uint *addr) +{ +#if 0 + int retval; + + __asm__ __volatile__( \ + "1: lwz %0,0(%1)\n" \ + " eieio\n" \ + " li %0,0\n" \ + "2:\n" \ + ".section .fixup,\"ax\"\n" \ + "3: li %0,-1\n" \ + " b 2b\n" \ + ".section __ex_table,\"a\"\n" \ + " .align 2\n" \ + " .long 1b,3b\n" \ + ".text" \ + : "=r" (retval) : "r"(addr)); + + return (retval); +#endif + return 0; +} diff --git a/arch/ppc/cpu/mpc83xx/u-boot.lds b/arch/ppc/cpu/mpc83xx/u-boot.lds new file mode 100644 index 0000000..157cef6 --- /dev/null +++ b/arch/ppc/cpu/mpc83xx/u-boot.lds @@ -0,0 +1,121 @@ +/* + * (C) Copyright 2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_ARCH(powerpc) +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + arch/ppc/cpu/mpc83xx/start.o (.text) + *(.text) + *(.got1) + . = ALIGN(16); + *(.eh_frame) + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x0FFF) & 0xFFFFF000; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(4096); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(4096); + __init_end = .; + + __bss_start = .; + .bss (NOLOAD) : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + . = ALIGN(4); + } + _end = . ; + PROVIDE (end = .); +} +ENTRY(_start) diff --git a/arch/ppc/cpu/mpc85xx/Makefile b/arch/ppc/cpu/mpc85xx/Makefile new file mode 100644 index 0000000..f064fee --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/Makefile @@ -0,0 +1,95 @@ +# +# (C) Copyright 2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# (C) Copyright 2002,2003 Motorola Inc. +# Xianghua Xiao,X.Xiao@motorola.com +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).a + +START = start.o resetvec.o +SOBJS-$(CONFIG_MP) += release.o +SOBJS = $(SOBJS-y) + +COBJS-$(CONFIG_CPM2) += commproc.o + +# supports ddr1 +COBJS-$(CONFIG_MPC8540) += ddr-gen1.o +COBJS-$(CONFIG_MPC8560) += ddr-gen1.o +COBJS-$(CONFIG_MPC8541) += ddr-gen1.o +COBJS-$(CONFIG_MPC8555) += ddr-gen1.o + +# supports ddr1/2 +COBJS-$(CONFIG_MPC8548) += ddr-gen2.o +COBJS-$(CONFIG_MPC8568) += ddr-gen2.o +COBJS-$(CONFIG_MPC8544) += ddr-gen2.o + +# supports ddr1/2/3 +COBJS-$(CONFIG_MPC8572) += ddr-gen3.o +COBJS-$(CONFIG_MPC8536) += ddr-gen3.o +COBJS-$(CONFIG_MPC8569) += ddr-gen3.o +COBJS-$(CONFIG_P1011) += ddr-gen3.o +COBJS-$(CONFIG_P1012) += ddr-gen3.o +COBJS-$(CONFIG_P1013) += ddr-gen3.o +COBJS-$(CONFIG_P1020) += ddr-gen3.o +COBJS-$(CONFIG_P1021) += ddr-gen3.o +COBJS-$(CONFIG_P1022) += ddr-gen3.o +COBJS-$(CONFIG_P2010) += ddr-gen3.o +COBJS-$(CONFIG_P2020) += ddr-gen3.o +COBJS-$(CONFIG_PPC_P4080) += ddr-gen3.o + +COBJS-$(CONFIG_CPM2) += ether_fcc.o +COBJS-$(CONFIG_OF_LIBFDT) += fdt.o +COBJS-$(CONFIG_MP) += mp.o +COBJS-$(CONFIG_MPC8536) += mpc8536_serdes.o +COBJS-$(CONFIG_PCI) += pci.o +COBJS-$(CONFIG_QE) += qe_io.o +COBJS-$(CONFIG_CPM2) += serial_scc.o + +COBJS = $(COBJS-y) +COBJS += cpu.o +COBJS += cpu_init.o +COBJS += cpu_init_early.o +COBJS += interrupts.o +COBJS += speed.o +COBJS += tlb.o +COBJS += traps.o + +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/ppc/cpu/mpc85xx/commproc.c b/arch/ppc/cpu/mpc85xx/commproc.c new file mode 100644 index 0000000..594aace --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/commproc.c @@ -0,0 +1,205 @@ +/* + * Adapted for Motorola MPC8560 chips + * Xianghua Xiao <x.xiao@motorola.com> + * + * This file is based on "arch/ppc/8260_io/commproc.c" - here is it's + * copyright notice: + * + * General Purpose functions for the global management of the + * 8220 Communication Processor Module. + * Copyright (c) 1999 Dan Malek (dmalek@jlc.net) + * Copyright (c) 2000 MontaVista Software, Inc (source@mvista.com) + * 2.3.99 Updates + * Copyright (c) 2003 Motorola,Inc. + * + * In addition to the individual control of the communication + * channels, there are a few functions that globally affect the + * communication processor. + * + * Buffer descriptors must be allocated from the dual ported memory + * space. The allocator for that is here. When the communication + * process is reset, we reclaim the memory available. There is + * currently no deallocator for this memory. + */ +#include <common.h> +#include <asm/cpm_85xx.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * because we have stack and init data in dual port ram + * we must reduce the size + */ +#undef CPM_DATAONLY_SIZE +#define CPM_DATAONLY_SIZE ((uint)(8 * 1024) - CPM_DATAONLY_BASE) + +void +m8560_cpm_reset(void) +{ + volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR; + volatile ulong count; + + gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); + + /* Reclaim the DP memory for our use. + */ + gd->dp_alloc_base = CPM_DATAONLY_BASE; + gd->dp_alloc_top = gd->dp_alloc_base + CPM_DATAONLY_SIZE; + + /* + * Reset CPM + */ + cpm->im_cpm_cp.cpcr = CPM_CR_RST; + count = 0; + do { /* Spin until command processed */ + __asm__ __volatile__ ("eieio"); + } while ((cpm->im_cpm_cp.cpcr & CPM_CR_FLG) && ++count < 1000000); +} + +/* Allocate some memory from the dual ported ram. + * To help protocols with object alignment restrictions, we do that + * if they ask. + */ +uint +m8560_cpm_dpalloc(uint size, uint align) +{ + volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR; + uint retloc; + uint align_mask, off; + uint savebase; + + align_mask = align - 1; + savebase = gd->dp_alloc_base; + + if ((off = (gd->dp_alloc_base & align_mask)) != 0) + gd->dp_alloc_base += (align - off); + + if ((off = size & align_mask) != 0) + size += align - off; + + if ((gd->dp_alloc_base + size) >= gd->dp_alloc_top) { + gd->dp_alloc_base = savebase; + panic("m8560_cpm_dpalloc: ran out of dual port ram!"); + } + + retloc = gd->dp_alloc_base; + gd->dp_alloc_base += size; + + memset((void *)&(cpm->im_dprambase[retloc]), 0, size); + + return(retloc); +} + +/* We also own one page of host buffer space for the allocation of + * UART "fifos" and the like. + */ +uint +m8560_cpm_hostalloc(uint size, uint align) +{ + /* the host might not even have RAM yet - just use dual port RAM */ + return (m8560_cpm_dpalloc(size, align)); +} + +/* Set a baud rate generator. This needs lots of work. There are + * eight BRGs, which can be connected to the CPM channels or output + * as clocks. The BRGs are in two different block of internal + * memory mapped space. + * The baud rate clock is the system clock divided by something. + * It was set up long ago during the initial boot phase and is + * is given to us. + * Baud rate clocks are zero-based in the driver code (as that maps + * to port numbers). Documentation uses 1-based numbering. + */ +#define BRG_INT_CLK gd->brg_clk +#define BRG_UART_CLK ((BRG_INT_CLK + 15) / 16) + +/* This function is used by UARTS, or anything else that uses a 16x + * oversampled clock. + */ +void +m8560_cpm_setbrg(uint brg, uint rate) +{ + volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR; + volatile uint *bp; + + /* This is good enough to get SMCs running..... + */ + if (brg < 4) { + bp = (uint *)&(cpm->im_cpm_brg1.brgc1); + } + else { + bp = (uint *)&(cpm->im_cpm_brg2.brgc5); + brg -= 4; + } + bp += brg; + *bp = (((((BRG_UART_CLK+rate-1)/rate)-1)&0xfff)<<1)|CPM_BRG_EN; +} + +/* This function is used to set high speed synchronous baud rate + * clocks. + */ +void +m8560_cpm_fastbrg(uint brg, uint rate, int div16) +{ + volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR; + volatile uint *bp; + + /* This is good enough to get SMCs running..... + */ + if (brg < 4) { + bp = (uint *)&(cpm->im_cpm_brg1.brgc1); + } + else { + bp = (uint *)&(cpm->im_cpm_brg2.brgc5); + brg -= 4; + } + bp += brg; + *bp = (((((BRG_INT_CLK+rate-1)/rate)-1)&0xfff)<<1)|CPM_BRG_EN; + if (div16) + *bp |= CPM_BRG_DIV16; +} + +/* This function is used to set baud rate generators using an external + * clock source and 16x oversampling. + */ + +void +m8560_cpm_extcbrg(uint brg, uint rate, uint extclk, int pinsel) +{ + volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR; + volatile uint *bp; + + if (brg < 4) { + bp = (uint *)&(cpm->im_cpm_brg1.brgc1); + } + else { + bp = (uint *)&(cpm->im_cpm_brg2.brgc5); + brg -= 4; + } + bp += brg; + *bp = ((((((extclk/16)+rate-1)/rate)-1)&0xfff)<<1)|CPM_BRG_EN; + if (pinsel == 0) + *bp |= CPM_BRG_EXTC_CLK3_9; + else + *bp |= CPM_BRG_EXTC_CLK5_15; +} + +#ifdef CONFIG_POST + +void post_word_store (ulong a) +{ + volatile ulong *save_addr = + (volatile ulong *)(CONFIG_SYS_IMMR + CPM_POST_WORD_ADDR); + + *save_addr = a; +} + +ulong post_word_load (void) +{ + volatile ulong *save_addr = + (volatile ulong *)(CONFIG_SYS_IMMR + CPM_POST_WORD_ADDR); + + return *save_addr; +} + +#endif /* CONFIG_POST */ diff --git a/arch/ppc/cpu/mpc85xx/config.mk b/arch/ppc/cpu/mpc85xx/config.mk new file mode 100644 index 0000000..ffb813d --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/config.mk @@ -0,0 +1,35 @@ +# +# (C) Copyright 2002,2003 Motorola Inc. +# Xianghua Xiao, X.Xiao@motorola.com +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +PLATFORM_RELFLAGS += -fPIC -meabi + +PLATFORM_CPPFLAGS += -ffixed-r2 -Wa,-me500 -msoft-float -mno-string + +# -mspe=yes is needed to have -mno-spe accepted by a buggy GCC; +# see "[PATCH,rs6000] make -mno-spe work as expected" on +# http://gcc.gnu.org/ml/gcc-patches/2008-04/msg00311.html +PLATFORM_CPPFLAGS +=$(call cc-option,-mspe=yes) +PLATFORM_CPPFLAGS +=$(call cc-option,-mno-spe) + +# Use default linker script. Board port can override in board/*/config.mk +LDSCRIPT := $(SRCTREE)/arch/ppc/cpu/mpc85xx/u-boot.lds diff --git a/arch/ppc/cpu/mpc85xx/cpu.c b/arch/ppc/cpu/mpc85xx/cpu.c new file mode 100644 index 0000000..0cc6e03 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/cpu.c @@ -0,0 +1,330 @@ +/* + * Copyright 2004,2007-2009 Freescale Semiconductor, Inc. + * (C) Copyright 2002, 2003 Motorola Inc. + * Xianghua Xiao (X.Xiao@motorola.com) + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <fsl_esdhc.h> +#include <asm/cache.h> +#include <asm/io.h> + +DECLARE_GLOBAL_DATA_PTR; + +int checkcpu (void) +{ + sys_info_t sysinfo; + uint pvr, svr; + uint fam; + uint ver; + uint major, minor; + struct cpu_type *cpu; + char buf1[32], buf2[32]; +#ifdef CONFIG_DDR_CLK_FREQ + volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); +#ifdef CONFIG_FSL_CORENET + u32 ddr_sync = ((gur->rcwsr[5]) & FSL_CORENET_RCWSR5_DDR_SYNC) + >> FSL_CORENET_RCWSR5_DDR_SYNC_SHIFT; +#else + u32 ddr_ratio = ((gur->porpllsr) & MPC85xx_PORPLLSR_DDR_RATIO) + >> MPC85xx_PORPLLSR_DDR_RATIO_SHIFT; +#endif +#else +#ifdef CONFIG_FSL_CORENET + u32 ddr_sync = 0; +#else + u32 ddr_ratio = 0; +#endif +#endif /* CONFIG_DDR_CLK_FREQ */ + int i; + + svr = get_svr(); + major = SVR_MAJ(svr); +#ifdef CONFIG_MPC8536 + major &= 0x7; /* the msb of this nibble is a mfg code */ +#endif + minor = SVR_MIN(svr); + + if (cpu_numcores() > 1) { +#ifndef CONFIG_MP + puts("Unicore software on multiprocessor system!!\n" + "To enable mutlticore build define CONFIG_MP\n"); +#endif + volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR); + printf("CPU%d: ", pic->whoami); + } else { + puts("CPU: "); + } + + cpu = gd->cpu; + + puts(cpu->name); + if (IS_E_PROCESSOR(svr)) + puts("E"); + + printf(", Version: %d.%d, (0x%08x)\n", major, minor, svr); + + pvr = get_pvr(); + fam = PVR_FAM(pvr); + ver = PVR_VER(pvr); + major = PVR_MAJ(pvr); + minor = PVR_MIN(pvr); + + printf("Core: "); + switch (fam) { + case PVR_FAM(PVR_85xx): + puts("E500"); + break; + default: + puts("Unknown"); + break; + } + + if (PVR_MEM(pvr) == 0x03) + puts("MC"); + + printf(", Version: %d.%d, (0x%08x)\n", major, minor, pvr); + + get_sys_info(&sysinfo); + + puts("Clock Configuration:"); + for (i = 0; i < cpu_numcores(); i++) { + if (!(i & 3)) + printf ("\n "); + printf("CPU%d:%-4s MHz, ", + i,strmhz(buf1, sysinfo.freqProcessor[i])); + } + printf("\n CCB:%-4s MHz,\n", strmhz(buf1, sysinfo.freqSystemBus)); + +#ifdef CONFIG_FSL_CORENET + if (ddr_sync == 1) { + printf(" DDR:%-4s MHz (%s MT/s data rate) " + "(Synchronous), ", + strmhz(buf1, sysinfo.freqDDRBus/2), + strmhz(buf2, sysinfo.freqDDRBus)); + } else { + printf(" DDR:%-4s MHz (%s MT/s data rate) " + "(Asynchronous), ", + strmhz(buf1, sysinfo.freqDDRBus/2), + strmhz(buf2, sysinfo.freqDDRBus)); + } +#else + switch (ddr_ratio) { + case 0x0: + printf(" DDR:%-4s MHz (%s MT/s data rate), ", + strmhz(buf1, sysinfo.freqDDRBus/2), + strmhz(buf2, sysinfo.freqDDRBus)); + break; + case 0x7: + printf(" DDR:%-4s MHz (%s MT/s data rate) " + "(Synchronous), ", + strmhz(buf1, sysinfo.freqDDRBus/2), + strmhz(buf2, sysinfo.freqDDRBus)); + break; + default: + printf(" DDR:%-4s MHz (%s MT/s data rate) " + "(Asynchronous), ", + strmhz(buf1, sysinfo.freqDDRBus/2), + strmhz(buf2, sysinfo.freqDDRBus)); + break; + } +#endif + + if (sysinfo.freqLocalBus > LCRR_CLKDIV) { + printf("LBC:%-4s MHz\n", strmhz(buf1, sysinfo.freqLocalBus)); + } else { + printf("LBC: unknown (LCRR[CLKDIV] = 0x%02lx)\n", + sysinfo.freqLocalBus); + } + +#ifdef CONFIG_CPM2 + printf("CPM: %s MHz\n", strmhz(buf1, sysinfo.freqSystemBus)); +#endif + +#ifdef CONFIG_QE + printf(" QE:%-4s MHz\n", strmhz(buf1, sysinfo.freqQE)); +#endif + +#ifdef CONFIG_SYS_DPAA_FMAN + for (i = 0; i < CONFIG_SYS_NUM_FMAN; i++) { + printf(" FMAN%d: %s MHz\n", i, + strmhz(buf1, sysinfo.freqFMan[i])); + } +#endif + +#ifdef CONFIG_SYS_DPAA_PME + printf(" PME: %s MHz\n", strmhz(buf1, sysinfo.freqPME)); +#endif + + puts("L1: D-cache 32 kB enabled\n I-cache 32 kB enabled\n"); + + return 0; +} + + +/* ------------------------------------------------------------------------- */ + +int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) +{ +/* Everything after the first generation of PQ3 parts has RSTCR */ +#if defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \ + defined(CONFIG_MPC8555) || defined(CONFIG_MPC8560) + unsigned long val, msr; + + /* + * Initiate hard reset in debug control register DBCR0 + * Make sure MSR[DE] = 1. This only resets the core. + */ + msr = mfmsr (); + msr |= MSR_DE; + mtmsr (msr); + + val = mfspr(DBCR0); + val |= 0x70000000; + mtspr(DBCR0,val); +#else + volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + out_be32(&gur->rstcr, 0x2); /* HRESET_REQ */ + udelay(100); +#endif + + return 1; +} + + +/* + * Get timebase clock frequency + */ +unsigned long get_tbclk (void) +{ +#ifdef CONFIG_FSL_CORENET + return (gd->bus_clk + 8) / 16; +#else + return (gd->bus_clk + 4UL)/8UL; +#endif +} + + +#if defined(CONFIG_WATCHDOG) +void +watchdog_reset(void) +{ + int re_enable = disable_interrupts(); + reset_85xx_watchdog(); + if (re_enable) enable_interrupts(); +} + +void +reset_85xx_watchdog(void) +{ + /* + * Clear TSR(WIS) bit by writing 1 + */ + unsigned long val; + val = mfspr(SPRN_TSR); + val |= TSR_WIS; + mtspr(SPRN_TSR, val); +} +#endif /* CONFIG_WATCHDOG */ + +/* + * Configures a UPM. The function requires the respective MxMR to be set + * before calling this function. "size" is the number or entries, not a sizeof. + */ +void upmconfig (uint upm, uint * table, uint size) +{ + int i, mdr, mad, old_mad = 0; + volatile u32 *mxmr; + volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR); + volatile u32 *brp,*orp; + volatile u8* dummy = NULL; + int upmmask; + + switch (upm) { + case UPMA: + mxmr = &lbc->mamr; + upmmask = BR_MS_UPMA; + break; + case UPMB: + mxmr = &lbc->mbmr; + upmmask = BR_MS_UPMB; + break; + case UPMC: + mxmr = &lbc->mcmr; + upmmask = BR_MS_UPMC; + break; + default: + printf("%s: Bad UPM index %d to configure\n", __FUNCTION__, upm); + hang(); + } + + /* Find the address for the dummy write transaction */ + for (brp = &lbc->br0, orp = &lbc->or0, i = 0; i < 8; + i++, brp += 2, orp += 2) { + + /* Look for a valid BR with selected UPM */ + if ((in_be32(brp) & (BR_V | BR_MSEL)) == (BR_V | upmmask)) { + dummy = (volatile u8*)(in_be32(brp) & BR_BA); + break; + } + } + + if (i == 8) { + printf("Error: %s() could not find matching BR\n", __FUNCTION__); + hang(); + } + + for (i = 0; i < size; i++) { + /* 1 */ + out_be32(mxmr, (in_be32(mxmr) & 0x4fffffc0) | MxMR_OP_WARR | i); + /* 2 */ + out_be32(&lbc->mdr, table[i]); + /* 3 */ + mdr = in_be32(&lbc->mdr); + /* 4 */ + *(volatile u8 *)dummy = 0; + /* 5 */ + do { + mad = in_be32(mxmr) & MxMR_MAD_MSK; + } while (mad <= old_mad && !(!mad && i == (size-1))); + old_mad = mad; + } + out_be32(mxmr, (in_be32(mxmr) & 0x4fffffc0) | MxMR_OP_NORM); +} + +/* + * Initializes on-chip MMC controllers. + * to override, implement board_mmc_init() + */ +int cpu_mmc_init(bd_t *bis) +{ +#ifdef CONFIG_FSL_ESDHC + return fsl_esdhc_mmc_init(bis); +#else + return 0; +#endif +} diff --git a/arch/ppc/cpu/mpc85xx/cpu_init.c b/arch/ppc/cpu/mpc85xx/cpu_init.c new file mode 100644 index 0000000..e0126d3 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/cpu_init.c @@ -0,0 +1,405 @@ +/* + * Copyright 2007-2009 Freescale Semiconductor, Inc. + * + * (C) Copyright 2003 Motorola Inc. + * Modified by Xianghua Xiao, X.Xiao@motorola.com + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <watchdog.h> +#include <asm/processor.h> +#include <ioports.h> +#include <asm/io.h> +#include <asm/mmu.h> +#include <asm/fsl_law.h> +#include "mp.h" + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_MPC8536 +extern void fsl_serdes_init(void); +#endif + +#ifdef CONFIG_QE +extern qe_iop_conf_t qe_iop_conf_tab[]; +extern void qe_config_iopin(u8 port, u8 pin, int dir, + int open_drain, int assign); +extern void qe_init(uint qe_base); +extern void qe_reset(void); + +static void config_qe_ioports(void) +{ + u8 port, pin; + int dir, open_drain, assign; + int i; + + for (i = 0; qe_iop_conf_tab[i].assign != QE_IOP_TAB_END; i++) { + port = qe_iop_conf_tab[i].port; + pin = qe_iop_conf_tab[i].pin; + dir = qe_iop_conf_tab[i].dir; + open_drain = qe_iop_conf_tab[i].open_drain; + assign = qe_iop_conf_tab[i].assign; + qe_config_iopin(port, pin, dir, open_drain, assign); + } +} +#endif + +#ifdef CONFIG_CPM2 +void config_8560_ioports (volatile ccsr_cpm_t * cpm) +{ + int portnum; + + for (portnum = 0; portnum < 4; portnum++) { + uint pmsk = 0, + ppar = 0, + psor = 0, + pdir = 0, + podr = 0, + pdat = 0; + iop_conf_t *iopc = (iop_conf_t *) & iop_conf_tab[portnum][0]; + iop_conf_t *eiopc = iopc + 32; + uint msk = 1; + + /* + * NOTE: + * index 0 refers to pin 31, + * index 31 refers to pin 0 + */ + while (iopc < eiopc) { + if (iopc->conf) { + pmsk |= msk; + if (iopc->ppar) + ppar |= msk; + if (iopc->psor) + psor |= msk; + if (iopc->pdir) + pdir |= msk; + if (iopc->podr) + podr |= msk; + if (iopc->pdat) + pdat |= msk; + } + + msk <<= 1; + iopc++; + } + + if (pmsk != 0) { + volatile ioport_t *iop = ioport_addr (cpm, portnum); + uint tpmsk = ~pmsk; + + /* + * the (somewhat confused) paragraph at the + * bottom of page 35-5 warns that there might + * be "unknown behaviour" when programming + * PSORx and PDIRx, if PPARx = 1, so I + * decided this meant I had to disable the + * dedicated function first, and enable it + * last. + */ + iop->ppar &= tpmsk; + iop->psor = (iop->psor & tpmsk) | psor; + iop->podr = (iop->podr & tpmsk) | podr; + iop->pdat = (iop->pdat & tpmsk) | pdat; + iop->pdir = (iop->pdir & tpmsk) | pdir; + iop->ppar |= ppar; + } + } +} +#endif + +/* + * Breathe some life into the CPU... + * + * Set up the memory map + * initialize a bunch of registers + */ + +#ifdef CONFIG_FSL_CORENET +static void corenet_tb_init(void) +{ + volatile ccsr_rcpm_t *rcpm = + (void *)(CONFIG_SYS_FSL_CORENET_RCPM_ADDR); + volatile ccsr_pic_t *pic = + (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR); + u32 whoami = in_be32(&pic->whoami); + + /* Enable the timebase register for this core */ + out_be32(&rcpm->ctbenrl, (1 << whoami)); +} +#endif + +void cpu_init_f (void) +{ + volatile ccsr_lbc_t *memctl = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR); + extern void m8560_cpm_reset (void); +#ifdef CONFIG_MPC8548 + ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR); + uint svr = get_svr(); + + /* + * CPU2 errata workaround: A core hang possible while executing + * a msync instruction and a snoopable transaction from an I/O + * master tagged to make quick forward progress is present. + * Fixed in silicon rev 2.1. + */ + if ((SVR_MAJ(svr) == 1) || ((SVR_MAJ(svr) == 2 && SVR_MIN(svr) == 0x0))) + out_be32(&ecm->eebpcr, in_be32(&ecm->eebpcr) | (1 << 16)); +#endif + + disable_tlb(14); + disable_tlb(15); + +#ifdef CONFIG_CPM2 + config_8560_ioports((ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR); +#endif + + /* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary + * addresses - these have to be modified later when FLASH size + * has been determined + */ +#if defined(CONFIG_SYS_OR0_REMAP) + memctl->or0 = CONFIG_SYS_OR0_REMAP; +#endif +#if defined(CONFIG_SYS_OR1_REMAP) + memctl->or1 = CONFIG_SYS_OR1_REMAP; +#endif + + /* now restrict to preliminary range */ + /* if cs1 is already set via debugger, leave cs0/cs1 alone */ + if (! memctl->br1 & 1) { +#if defined(CONFIG_SYS_BR0_PRELIM) && defined(CONFIG_SYS_OR0_PRELIM) + memctl->br0 = CONFIG_SYS_BR0_PRELIM; + memctl->or0 = CONFIG_SYS_OR0_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR1_PRELIM) && defined(CONFIG_SYS_OR1_PRELIM) + memctl->or1 = CONFIG_SYS_OR1_PRELIM; + memctl->br1 = CONFIG_SYS_BR1_PRELIM; +#endif + } + +#if defined(CONFIG_SYS_BR2_PRELIM) && defined(CONFIG_SYS_OR2_PRELIM) + memctl->or2 = CONFIG_SYS_OR2_PRELIM; + memctl->br2 = CONFIG_SYS_BR2_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR3_PRELIM) && defined(CONFIG_SYS_OR3_PRELIM) + memctl->or3 = CONFIG_SYS_OR3_PRELIM; + memctl->br3 = CONFIG_SYS_BR3_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR4_PRELIM) && defined(CONFIG_SYS_OR4_PRELIM) + memctl->or4 = CONFIG_SYS_OR4_PRELIM; + memctl->br4 = CONFIG_SYS_BR4_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR5_PRELIM) && defined(CONFIG_SYS_OR5_PRELIM) + memctl->or5 = CONFIG_SYS_OR5_PRELIM; + memctl->br5 = CONFIG_SYS_BR5_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR6_PRELIM) && defined(CONFIG_SYS_OR6_PRELIM) + memctl->or6 = CONFIG_SYS_OR6_PRELIM; + memctl->br6 = CONFIG_SYS_BR6_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR7_PRELIM) && defined(CONFIG_SYS_OR7_PRELIM) + memctl->or7 = CONFIG_SYS_OR7_PRELIM; + memctl->br7 = CONFIG_SYS_BR7_PRELIM; +#endif + +#if defined(CONFIG_CPM2) + m8560_cpm_reset(); +#endif +#ifdef CONFIG_QE + /* Config QE ioports */ + config_qe_ioports(); +#endif +#if defined(CONFIG_MPC8536) + fsl_serdes_init(); +#endif +#if defined(CONFIG_FSL_DMA) + dma_init(); +#endif +#ifdef CONFIG_FSL_CORENET + corenet_tb_init(); +#endif + init_used_tlb_cams(); +} + + +/* + * Initialize L2 as cache. + * + * The newer 8548, etc, parts have twice as much cache, but + * use the same bit-encoding as the older 8555, etc, parts. + * + */ + +int cpu_init_r(void) +{ + puts ("L2: "); + +#if defined(CONFIG_L2_CACHE) + volatile ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR; + volatile uint cache_ctl; + uint svr, ver; + uint l2srbar; + u32 l2siz_field; + + svr = get_svr(); + ver = SVR_SOC_VER(svr); + + asm("msync;isync"); + cache_ctl = l2cache->l2ctl; + +#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L2_ADDR) + if (cache_ctl & MPC85xx_L2CTL_L2E) { + /* Clear L2 SRAM memory-mapped base address */ + out_be32(&l2cache->l2srbar0, 0x0); + out_be32(&l2cache->l2srbar1, 0x0); + + /* set MBECCDIS=0, SBECCDIS=0 */ + clrbits_be32(&l2cache->l2errdis, + (MPC85xx_L2ERRDIS_MBECC | + MPC85xx_L2ERRDIS_SBECC)); + + /* set L2E=0, L2SRAM=0 */ + clrbits_be32(&l2cache->l2ctl, + (MPC85xx_L2CTL_L2E | + MPC85xx_L2CTL_L2SRAM_ENTIRE)); + } +#endif + + l2siz_field = (cache_ctl >> 28) & 0x3; + + switch (l2siz_field) { + case 0x0: + printf(" unknown size (0x%08x)\n", cache_ctl); + return -1; + break; + case 0x1: + if (ver == SVR_8540 || ver == SVR_8560 || + ver == SVR_8541 || ver == SVR_8541_E || + ver == SVR_8555 || ver == SVR_8555_E) { + puts("128 KB "); + /* set L2E=1, L2I=1, & L2BLKSZ=1 (128 Kbyte) */ + cache_ctl = 0xc4000000; + } else { + puts("256 KB "); + cache_ctl = 0xc0000000; /* set L2E=1, L2I=1, & L2SRAM=0 */ + } + break; + case 0x2: + if (ver == SVR_8540 || ver == SVR_8560 || + ver == SVR_8541 || ver == SVR_8541_E || + ver == SVR_8555 || ver == SVR_8555_E) { + puts("256 KB "); + /* set L2E=1, L2I=1, & L2BLKSZ=2 (256 Kbyte) */ + cache_ctl = 0xc8000000; + } else { + puts ("512 KB "); + /* set L2E=1, L2I=1, & L2SRAM=0 */ + cache_ctl = 0xc0000000; + } + break; + case 0x3: + puts("1024 KB "); + /* set L2E=1, L2I=1, & L2SRAM=0 */ + cache_ctl = 0xc0000000; + break; + } + + if (l2cache->l2ctl & MPC85xx_L2CTL_L2E) { + puts("already enabled"); + l2srbar = l2cache->l2srbar0; +#ifdef CONFIG_SYS_INIT_L2_ADDR + if (l2cache->l2ctl & MPC85xx_L2CTL_L2SRAM_ENTIRE + && l2srbar >= CONFIG_SYS_FLASH_BASE) { + l2srbar = CONFIG_SYS_INIT_L2_ADDR; + l2cache->l2srbar0 = l2srbar; + printf("moving to 0x%08x", CONFIG_SYS_INIT_L2_ADDR); + } +#endif /* CONFIG_SYS_INIT_L2_ADDR */ + puts("\n"); + } else { + asm("msync;isync"); + l2cache->l2ctl = cache_ctl; /* invalidate & enable */ + asm("msync;isync"); + puts("enabled\n"); + } +#elif defined(CONFIG_BACKSIDE_L2_CACHE) + u32 l2cfg0 = mfspr(SPRN_L2CFG0); + + /* invalidate the L2 cache */ + mtspr(SPRN_L2CSR0, (L2CSR0_L2FI|L2CSR0_L2LFC)); + while (mfspr(SPRN_L2CSR0) & (L2CSR0_L2FI|L2CSR0_L2LFC)) + ; + +#ifdef CONFIG_SYS_CACHE_STASHING + /* set stash id to (coreID) * 2 + 32 + L2 (1) */ + mtspr(SPRN_L2CSR1, (32 + 1)); +#endif + + /* enable the cache */ + mtspr(SPRN_L2CSR0, CONFIG_SYS_INIT_L2CSR0); + + if (CONFIG_SYS_INIT_L2CSR0 & L2CSR0_L2E) { + while (!(mfspr(SPRN_L2CSR0) & L2CSR0_L2E)) + ; + printf("%d KB enabled\n", (l2cfg0 & 0x3fff) * 64); + } +#else + puts("disabled\n"); +#endif +#ifdef CONFIG_QE + uint qe_base = CONFIG_SYS_IMMR + 0x00080000; /* QE immr base */ + qe_init(qe_base); + qe_reset(); +#endif + +#if defined(CONFIG_MP) + setup_mp(); +#endif + return 0; +} + +extern void setup_ivors(void); + +void arch_preboot_os(void) +{ + u32 msr; + + /* + * We are changing interrupt offsets and are about to boot the OS so + * we need to make sure we disable all async interrupts. EE is already + * disabled by the time we get called. + */ + msr = mfmsr(); + msr &= ~(MSR_ME|MSR_CE|MSR_DE); + mtmsr(msr); + + setup_ivors(); +} diff --git a/arch/ppc/cpu/mpc85xx/cpu_init_early.c b/arch/ppc/cpu/mpc85xx/cpu_init_early.c new file mode 100644 index 0000000..32aa94b --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/cpu_init_early.c @@ -0,0 +1,112 @@ +/* + * Copyright 2009 Freescale Semiconductor, Inc + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/processor.h> +#include <asm/mmu.h> +#include <asm/fsl_law.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS) +#ifdef CONFIG_FSL_CORENET +static void setup_ccsrbar(void) +{ + u32 temp; + volatile u32 *ccsr_virt = (volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000); + volatile ccsr_local_t *ccm; + + /* + * We can't call set_law() because we haven't moved + * CCSR yet. + */ + ccm = (void *)ccsr_virt; + + out_be32(&ccm->law[0].lawbarh, + (u64)CONFIG_SYS_CCSRBAR_PHYS >> 32); + out_be32(&ccm->law[0].lawbarl, (u32)CONFIG_SYS_CCSRBAR_PHYS); + out_be32(&ccm->law[0].lawar, + LAW_EN | (0x1e << 20) | LAW_SIZE_4K); + + in_be32((u32 *)(ccsr_virt + 0)); + in_be32((u32 *)(ccsr_virt + 1)); + isync(); + + ccm = (void *)CONFIG_SYS_CCSRBAR; + /* Now use the temporary LAW to move CCSR */ + out_be32(&ccm->ccsrbarh, (u64)CONFIG_SYS_CCSRBAR_PHYS >> 32); + out_be32(&ccm->ccsrbarl, (u32)CONFIG_SYS_CCSRBAR_PHYS); + out_be32(&ccm->ccsrar, CCSRAR_C); + temp = in_be32(&ccm->ccsrar); + disable_law(0); +} +#else +static void setup_ccsrbar(void) +{ + u32 temp; + volatile u32 *ccsr_virt = (volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000); + + temp = in_be32(ccsr_virt); + out_be32(ccsr_virt, CONFIG_SYS_CCSRBAR_PHYS >> 12); + temp = in_be32((volatile u32 *)CONFIG_SYS_CCSRBAR); +} +#endif +#endif + +/* We run cpu_init_early_f in AS = 1 */ +void cpu_init_early_f(void) +{ + u32 mas0, mas1, mas2, mas3, mas7; + int i; + + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); + + /* + * Clear initial global data + * we don't use memset so we can share this code with NAND_SPL + */ + for (i = 0; i < sizeof(gd_t); i++) + ((char *)gd)[i] = 0; + + mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(0); + mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_4K); + mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR, MAS2_I|MAS2_G); + mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_PHYS, 0, MAS3_SW|MAS3_SR); + mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_PHYS); + + write_tlb(mas0, mas1, mas2, mas3, mas7); + + /* set up CCSR if we want it moved */ +#if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS) + mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(1); + /* mas1 is the same as above */ + mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR + 0x1000, MAS2_I|MAS2_G); + mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_DEFAULT, 0, MAS3_SW|MAS3_SR); + mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_DEFAULT); + + write_tlb(mas0, mas1, mas2, mas3, mas7); + + setup_ccsrbar(); +#endif + + init_laws(); + invalidate_tlb(0); + init_tlbs(); +} diff --git a/arch/ppc/cpu/mpc85xx/cpu_init_nand.c b/arch/ppc/cpu/mpc85xx/cpu_init_nand.c new file mode 100644 index 0000000..184cca4 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/cpu_init_nand.c @@ -0,0 +1,63 @@ +/* + * Copyright 2009 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/io.h> + +void cpu_init_f(void) +{ + ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR); + + /* + * LCRR - Clock Ratio Register - set up local bus timing + * when needed + */ + out_be32(&lbc->lcrr, LCRR_DBYP | LCRR_CLKDIV_8); + +#if defined(CONFIG_NAND_BR_PRELIM) && defined(CONFIG_NAND_OR_PRELIM) + out_be32(&lbc->br0, CONFIG_NAND_BR_PRELIM); + out_be32(&lbc->or0, CONFIG_NAND_OR_PRELIM); +#else +#error CONFIG_NAND_BR_PRELIM, CONFIG_NAND_OR_PRELIM must be defined +#endif + +#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L2_ADDR) + ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR; + char *l2srbar; + int i; + + out_be32(&l2cache->l2srbar0, CONFIG_SYS_INIT_L2_ADDR); + + /* set MBECCDIS=1, SBECCDIS=1 */ + out_be32(&l2cache->l2errdis, + (MPC85xx_L2ERRDIS_MBECC | MPC85xx_L2ERRDIS_SBECC)); + + /* set L2E=1 & L2SRAM=001 */ + out_be32(&l2cache->l2ctl, + (MPC85xx_L2CTL_L2E | MPC85xx_L2CTL_L2SRAM_ENTIRE)); + + /* Initialize L2 SRAM to zero */ + l2srbar = (char *)CONFIG_SYS_INIT_L2_ADDR; + for (i = 0; i < CONFIG_SYS_L2_SIZE; i++) + l2srbar[i] = 0; +#endif +} diff --git a/arch/ppc/cpu/mpc85xx/ddr-gen1.c b/arch/ppc/cpu/mpc85xx/ddr-gen1.c new file mode 100644 index 0000000..54437dd --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/ddr-gen1.c @@ -0,0 +1,89 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/fsl_ddr_sdram.h> + +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 4) +#error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL +#endif + +void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, + unsigned int ctrl_num) +{ + unsigned int i; + volatile ccsr_ddr_t *ddr = (void *)CONFIG_SYS_MPC85xx_DDR_ADDR; + + if (ctrl_num != 0) { + printf("%s unexpected ctrl_num = %u\n", __FUNCTION__, ctrl_num); + return; + } + + for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { + if (i == 0) { + out_be32(&ddr->cs0_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs0_config, regs->cs[i].config); + + } else if (i == 1) { + out_be32(&ddr->cs1_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs1_config, regs->cs[i].config); + + } else if (i == 2) { + out_be32(&ddr->cs2_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs2_config, regs->cs[i].config); + + } else if (i == 3) { + out_be32(&ddr->cs3_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs3_config, regs->cs[i].config); + } + } + + out_be32(&ddr->timing_cfg_1, regs->timing_cfg_1); + out_be32(&ddr->timing_cfg_2, regs->timing_cfg_2); + out_be32(&ddr->sdram_mode, regs->ddr_sdram_mode); + out_be32(&ddr->sdram_interval, regs->ddr_sdram_interval); +#if defined(CONFIG_MPC8555) || defined(CONFIG_MPC8541) + out_be32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl); +#endif + + /* + * 200 painful micro-seconds must elapse between + * the DDR clock setup and the DDR config enable. + */ + udelay(200); + asm volatile("sync;isync"); + + out_be32(&ddr->sdram_cfg, regs->ddr_sdram_cfg); + + asm("sync;isync;msync"); + udelay(500); +} + +#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) +/* + * Initialize all of memory for ECC, then enable errors. + */ + +void +ddr_enable_ecc(unsigned int dram_size) +{ + volatile ccsr_ddr_t *ddr= (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR); + + dma_meminit(CONFIG_MEM_INIT_VALUE, dram_size); + + /* + * Enable errors for ECC. + */ + debug("DMA DDR: err_disable = 0x%08x\n", ddr->err_disable); + ddr->err_disable = 0x00000000; + asm("sync;isync;msync"); + debug("DMA DDR: err_disable = 0x%08x\n", ddr->err_disable); +} + +#endif /* CONFIG_DDR_ECC && ! CONFIG_ECC_INIT_VIA_DDRCONTROLLER */ diff --git a/arch/ppc/cpu/mpc85xx/ddr-gen2.c b/arch/ppc/cpu/mpc85xx/ddr-gen2.c new file mode 100644 index 0000000..655f99c --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/ddr-gen2.c @@ -0,0 +1,74 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/fsl_ddr_sdram.h> + +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 4) +#error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL +#endif + +void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, + unsigned int ctrl_num) +{ + unsigned int i; + volatile ccsr_ddr_t *ddr = (void *)CONFIG_SYS_MPC85xx_DDR_ADDR; + + if (ctrl_num) { + printf("%s unexpected ctrl_num = %u\n", __FUNCTION__, ctrl_num); + return; + } + + for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { + if (i == 0) { + out_be32(&ddr->cs0_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs0_config, regs->cs[i].config); + + } else if (i == 1) { + out_be32(&ddr->cs1_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs1_config, regs->cs[i].config); + + } else if (i == 2) { + out_be32(&ddr->cs2_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs2_config, regs->cs[i].config); + + } else if (i == 3) { + out_be32(&ddr->cs3_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs3_config, regs->cs[i].config); + } + } + + out_be32(&ddr->timing_cfg_3, regs->timing_cfg_3); + out_be32(&ddr->timing_cfg_0, regs->timing_cfg_0); + out_be32(&ddr->timing_cfg_1, regs->timing_cfg_1); + out_be32(&ddr->timing_cfg_2, regs->timing_cfg_2); + out_be32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2); + out_be32(&ddr->sdram_mode, regs->ddr_sdram_mode); + out_be32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2); + out_be32(&ddr->sdram_md_cntl, regs->ddr_sdram_md_cntl); + out_be32(&ddr->sdram_interval, regs->ddr_sdram_interval); + out_be32(&ddr->sdram_data_init, regs->ddr_data_init); + out_be32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl); + out_be32(&ddr->init_addr, regs->ddr_init_addr); + out_be32(&ddr->init_ext_addr, regs->ddr_init_ext_addr); + + /* + * 200 painful micro-seconds must elapse between + * the DDR clock setup and the DDR config enable. + */ + udelay(200); + asm volatile("sync;isync"); + + out_be32(&ddr->sdram_cfg, regs->ddr_sdram_cfg); + + /* Poll DDR_SDRAM_CFG_2[D_INIT] bit until auto-data init is done. */ + while (in_be32(&ddr->sdram_cfg_2) & 0x10) { + udelay(10000); /* throttle polling rate */ + } +} diff --git a/arch/ppc/cpu/mpc85xx/ddr-gen3.c b/arch/ppc/cpu/mpc85xx/ddr-gen3.c new file mode 100644 index 0000000..0691ca4 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/ddr-gen3.c @@ -0,0 +1,116 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/fsl_ddr_sdram.h> + +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 4) +#error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL +#endif + +void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, + unsigned int ctrl_num) +{ + unsigned int i; + volatile ccsr_ddr_t *ddr; + u32 temp_sdram_cfg; + + switch (ctrl_num) { + case 0: + ddr = (void *)CONFIG_SYS_MPC85xx_DDR_ADDR; + break; + case 1: + ddr = (void *)CONFIG_SYS_MPC85xx_DDR2_ADDR; + break; + default: + printf("%s unexpected ctrl_num = %u\n", __FUNCTION__, ctrl_num); + return; + } + + for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { + if (i == 0) { + out_be32(&ddr->cs0_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs0_config, regs->cs[i].config); + out_be32(&ddr->cs0_config_2, regs->cs[i].config_2); + + } else if (i == 1) { + out_be32(&ddr->cs1_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs1_config, regs->cs[i].config); + out_be32(&ddr->cs1_config_2, regs->cs[i].config_2); + + } else if (i == 2) { + out_be32(&ddr->cs2_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs2_config, regs->cs[i].config); + out_be32(&ddr->cs2_config_2, regs->cs[i].config_2); + + } else if (i == 3) { + out_be32(&ddr->cs3_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs3_config, regs->cs[i].config); + out_be32(&ddr->cs3_config_2, regs->cs[i].config_2); + } + } + + out_be32(&ddr->timing_cfg_3, regs->timing_cfg_3); + out_be32(&ddr->timing_cfg_0, regs->timing_cfg_0); + out_be32(&ddr->timing_cfg_1, regs->timing_cfg_1); + out_be32(&ddr->timing_cfg_2, regs->timing_cfg_2); + out_be32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2); + out_be32(&ddr->sdram_mode, regs->ddr_sdram_mode); + out_be32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2); + out_be32(&ddr->sdram_md_cntl, regs->ddr_sdram_md_cntl); + out_be32(&ddr->sdram_interval, regs->ddr_sdram_interval); + out_be32(&ddr->sdram_data_init, regs->ddr_data_init); + out_be32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl); + out_be32(&ddr->init_addr, regs->ddr_init_addr); + out_be32(&ddr->init_ext_addr, regs->ddr_init_ext_addr); + + out_be32(&ddr->timing_cfg_4, regs->timing_cfg_4); + out_be32(&ddr->timing_cfg_5, regs->timing_cfg_5); + out_be32(&ddr->ddr_zq_cntl, regs->ddr_zq_cntl); + out_be32(&ddr->ddr_wrlvl_cntl, regs->ddr_wrlvl_cntl); + out_be32(&ddr->ddr_sr_cntr, regs->ddr_sr_cntr); + out_be32(&ddr->ddr_sdram_rcw_1, regs->ddr_sdram_rcw_1); + out_be32(&ddr->ddr_sdram_rcw_2, regs->ddr_sdram_rcw_2); + + /* Set, but do not enable the memory */ + temp_sdram_cfg = regs->ddr_sdram_cfg; + temp_sdram_cfg &= ~(SDRAM_CFG_MEM_EN); + out_be32(&ddr->sdram_cfg, temp_sdram_cfg); + /* + * For 8572 DDR1 erratum - DDR controller may enter illegal state + * when operatiing in 32-bit bus mode with 4-beat bursts, + * This erratum does not affect DDR3 mode, only for DDR2 mode. + */ +#ifdef CONFIG_MPC8572 + if ((((in_be32(&ddr->sdram_cfg) >> 24) & 0x7) == SDRAM_TYPE_DDR2) + && in_be32(&ddr->sdram_cfg) & 0x80000) { + /* set DEBUG_1[31] */ + u32 temp = in_be32(&ddr->debug_1); + out_be32(&ddr->debug_1, temp | 1); + } +#endif + + /* + * 500 painful micro-seconds must elapse between + * the DDR clock setup and the DDR config enable. + * DDR2 need 200 us, and DDR3 need 500 us from spec, + * we choose the max, that is 500 us for all of case. + */ + udelay(500); + asm volatile("sync;isync"); + + /* Let the controller go */ + temp_sdram_cfg = in_be32(&ddr->sdram_cfg); + out_be32(&ddr->sdram_cfg, temp_sdram_cfg | SDRAM_CFG_MEM_EN); + + /* Poll DDR_SDRAM_CFG_2[D_INIT] bit until auto-data init is done. */ + while (in_be32(&ddr->sdram_cfg_2) & 0x10) { + udelay(10000); /* throttle polling rate */ + } +} diff --git a/arch/ppc/cpu/mpc85xx/ether_fcc.c b/arch/ppc/cpu/mpc85xx/ether_fcc.c new file mode 100644 index 0000000..5f1414d --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/ether_fcc.c @@ -0,0 +1,469 @@ +/* + * MPC8560 FCC Fast Ethernet + * Copyright (c) 2003 Motorola,Inc. + * Xianghua Xiao, (X.Xiao@motorola.com) + * + * Copyright (c) 2000 MontaVista Software, Inc. Dan Malek (dmalek@jlc.net) + * + * (C) Copyright 2000 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * MPC8560 FCC Fast Ethernet + * Basic ET HW initialization and packet RX/TX routines + * + * This code will not perform the IO port configuration. This should be + * done in the iop_conf_t structure specific for the board. + * + * TODO: + * add a PHY driver to do the negotiation + * reflect negotiation results in FPSMR + * look for ways to configure the board specific stuff elsewhere, eg. + * config_xxx.h or the board directory + */ + +#include <common.h> +#include <malloc.h> +#include <asm/cpm_85xx.h> +#include <command.h> +#include <config.h> +#include <net.h> + +#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) +#include <miiphy.h> +#endif + +#if defined(CONFIG_ETHER_ON_FCC) && defined(CONFIG_CMD_NET) && \ + defined(CONFIG_NET_MULTI) + +static struct ether_fcc_info_s +{ + int ether_index; + int proff_enet; + ulong cpm_cr_enet_sblock; + ulong cpm_cr_enet_page; + ulong cmxfcr_mask; + ulong cmxfcr_value; +} + ether_fcc_info[] = +{ +#ifdef CONFIG_ETHER_ON_FCC1 +{ + 0, + PROFF_FCC1, + CPM_CR_FCC1_SBLOCK, + CPM_CR_FCC1_PAGE, + CONFIG_SYS_CMXFCR_MASK1, + CONFIG_SYS_CMXFCR_VALUE1 +}, +#endif + +#ifdef CONFIG_ETHER_ON_FCC2 +{ + 1, + PROFF_FCC2, + CPM_CR_FCC2_SBLOCK, + CPM_CR_FCC2_PAGE, + CONFIG_SYS_CMXFCR_MASK2, + CONFIG_SYS_CMXFCR_VALUE2 +}, +#endif + +#ifdef CONFIG_ETHER_ON_FCC3 +{ + 2, + PROFF_FCC3, + CPM_CR_FCC3_SBLOCK, + CPM_CR_FCC3_PAGE, + CONFIG_SYS_CMXFCR_MASK3, + CONFIG_SYS_CMXFCR_VALUE3 +}, +#endif +}; + +/*---------------------------------------------------------------------*/ + +/* Maximum input DMA size. Must be a should(?) be a multiple of 4. */ +#define PKT_MAXDMA_SIZE 1520 + +/* The FCC stores dest/src/type, data, and checksum for receive packets. */ +#define PKT_MAXBUF_SIZE 1518 +#define PKT_MINBUF_SIZE 64 + +/* Maximum input buffer size. Must be a multiple of 32. */ +#define PKT_MAXBLR_SIZE 1536 + +#define TOUT_LOOP 1000000 + +#define TX_BUF_CNT 2 + +static uint rxIdx; /* index of the current RX buffer */ +static uint txIdx; /* index of the current TX buffer */ + +/* + * FCC Ethernet Tx and Rx buffer descriptors. + * Provide for Double Buffering + * Note: PKTBUFSRX is defined in net.h + */ + +typedef volatile struct rtxbd { + cbd_t rxbd[PKTBUFSRX]; + cbd_t txbd[TX_BUF_CNT]; +} RTXBD; + +/* Good news: the FCC supports external BDs! */ +#ifdef __GNUC__ +static RTXBD rtx __attribute__ ((aligned(8))); +#else +#error "rtx must be 64-bit aligned" +#endif + +#undef ET_DEBUG + +static int fec_send(struct eth_device* dev, volatile void *packet, int length) +{ + int i = 0; + int result = 0; + + if (length <= 0) { + printf("fec: bad packet size: %d\n", length); + goto out; + } + + for(i=0; rtx.txbd[txIdx].cbd_sc & BD_ENET_TX_READY; i++) { + if (i >= TOUT_LOOP) { + printf("fec: tx buffer not ready\n"); + goto out; + } + } + + rtx.txbd[txIdx].cbd_bufaddr = (uint)packet; + rtx.txbd[txIdx].cbd_datlen = length; + rtx.txbd[txIdx].cbd_sc |= (BD_ENET_TX_READY | BD_ENET_TX_LAST | \ + BD_ENET_TX_TC | BD_ENET_TX_PAD); + + for(i=0; rtx.txbd[txIdx].cbd_sc & BD_ENET_TX_READY; i++) { + if (i >= TOUT_LOOP) { + printf("fec: tx error\n"); + goto out; + } + } + +#ifdef ET_DEBUG + printf("cycles: 0x%x txIdx=0x%04x status: 0x%04x\n", i, txIdx,rtx.txbd[txIdx].cbd_sc); + printf("packets at 0x%08x, length_in_bytes=0x%x\n",(uint)packet,length); + for(i=0;i<(length/16 + 1);i++) { + printf("%08x %08x %08x %08x\n",*((uint *)rtx.txbd[txIdx].cbd_bufaddr+i*4),\ + *((uint *)rtx.txbd[txIdx].cbd_bufaddr + i*4 + 1),*((uint *)rtx.txbd[txIdx].cbd_bufaddr + i*4 + 2), \ + *((uint *)rtx.txbd[txIdx].cbd_bufaddr + i*4 + 3)); + } +#endif + + /* return only status bits */ + result = rtx.txbd[txIdx].cbd_sc & BD_ENET_TX_STATS; + txIdx = (txIdx + 1) % TX_BUF_CNT; + +out: + return result; +} + +static int fec_recv(struct eth_device* dev) +{ + int length; + + for (;;) + { + if (rtx.rxbd[rxIdx].cbd_sc & BD_ENET_RX_EMPTY) { + length = -1; + break; /* nothing received - leave for() loop */ + } + length = rtx.rxbd[rxIdx].cbd_datlen; + + if (rtx.rxbd[rxIdx].cbd_sc & 0x003f) { + printf("fec: rx error %04x\n", rtx.rxbd[rxIdx].cbd_sc); + } + else { + /* Pass the packet up to the protocol layers. */ + NetReceive(NetRxPackets[rxIdx], length - 4); + } + + + /* Give the buffer back to the FCC. */ + rtx.rxbd[rxIdx].cbd_datlen = 0; + + /* wrap around buffer index when necessary */ + if ((rxIdx + 1) >= PKTBUFSRX) { + rtx.rxbd[PKTBUFSRX - 1].cbd_sc = (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY); + rxIdx = 0; + } + else { + rtx.rxbd[rxIdx].cbd_sc = BD_ENET_RX_EMPTY; + rxIdx++; + } + } + return length; +} + + +static int fec_init(struct eth_device* dev, bd_t *bis) +{ + struct ether_fcc_info_s * info = dev->priv; + int i; + volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR; + volatile ccsr_cpm_cp_t *cp = &(cpm->im_cpm_cp); + fcc_enet_t *pram_ptr; + unsigned long mem_addr; + +#if 0 + mii_discover_phy(); +#endif + + /* 28.9 - (1-2): ioports have been set up already */ + + /* 28.9 - (3): connect FCC's tx and rx clocks */ + cpm->im_cpm_mux.cmxuar = 0; /* ATM */ + cpm->im_cpm_mux.cmxfcr = (cpm->im_cpm_mux.cmxfcr & ~info->cmxfcr_mask) | + info->cmxfcr_value; + + /* 28.9 - (4): GFMR: disable tx/rx, CCITT CRC, set Mode Ethernet */ + if(info->ether_index == 0) { + cpm->im_cpm_fcc1.gfmr = FCC_GFMR_MODE_ENET | FCC_GFMR_TCRC_32; + } else if (info->ether_index == 1) { + cpm->im_cpm_fcc2.gfmr = FCC_GFMR_MODE_ENET | FCC_GFMR_TCRC_32; + } else if (info->ether_index == 2) { + cpm->im_cpm_fcc3.gfmr = FCC_GFMR_MODE_ENET | FCC_GFMR_TCRC_32; + } + + /* 28.9 - (5): FPSMR: enable full duplex, select CCITT CRC for Ethernet,MII */ + if(info->ether_index == 0) { + cpm->im_cpm_fcc1.fpsmr = CONFIG_SYS_FCC_PSMR | FCC_PSMR_ENCRC; + } else if (info->ether_index == 1){ + cpm->im_cpm_fcc2.fpsmr = CONFIG_SYS_FCC_PSMR | FCC_PSMR_ENCRC; + } else if (info->ether_index == 2){ + cpm->im_cpm_fcc3.fpsmr = CONFIG_SYS_FCC_PSMR | FCC_PSMR_ENCRC; + } + + /* 28.9 - (6): FDSR: Ethernet Syn */ + if(info->ether_index == 0) { + cpm->im_cpm_fcc1.fdsr = 0xD555; + } else if (info->ether_index == 1) { + cpm->im_cpm_fcc2.fdsr = 0xD555; + } else if (info->ether_index == 2) { + cpm->im_cpm_fcc3.fdsr = 0xD555; + } + + /* reset indeces to current rx/tx bd (see eth_send()/eth_rx()) */ + rxIdx = 0; + txIdx = 0; + + /* Setup Receiver Buffer Descriptors */ + for (i = 0; i < PKTBUFSRX; i++) + { + rtx.rxbd[i].cbd_sc = BD_ENET_RX_EMPTY; + rtx.rxbd[i].cbd_datlen = 0; + rtx.rxbd[i].cbd_bufaddr = (uint)NetRxPackets[i]; + } + rtx.rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP; + + /* Setup Ethernet Transmitter Buffer Descriptors */ + for (i = 0; i < TX_BUF_CNT; i++) + { + rtx.txbd[i].cbd_sc = 0; + rtx.txbd[i].cbd_datlen = 0; + rtx.txbd[i].cbd_bufaddr = 0; + } + rtx.txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP; + + /* 28.9 - (7): initialize parameter ram */ + pram_ptr = (fcc_enet_t *)&(cpm->im_dprambase[info->proff_enet]); + + /* clear whole structure to make sure all reserved fields are zero */ + memset((void*)pram_ptr, 0, sizeof(fcc_enet_t)); + + /* + * common Parameter RAM area + * + * Allocate space in the reserved FCC area of DPRAM for the + * internal buffers. No one uses this space (yet), so we + * can do this. Later, we will add resource management for + * this area. + * CPM_FCC_SPECIAL_BASE: 0xB000 for MPC8540, MPC8560 + * 0x9000 for MPC8541, MPC8555 + */ + mem_addr = CPM_FCC_SPECIAL_BASE + ((info->ether_index) * 64); + pram_ptr->fen_genfcc.fcc_riptr = mem_addr; + pram_ptr->fen_genfcc.fcc_tiptr = mem_addr+32; + /* + * Set maximum bytes per receive buffer. + * It must be a multiple of 32. + */ + pram_ptr->fen_genfcc.fcc_mrblr = PKT_MAXBLR_SIZE; /* 1536 */ + /* localbus SDRAM should be preferred */ + pram_ptr->fen_genfcc.fcc_rstate = (CPMFCR_GBL | CPMFCR_EB | + CONFIG_SYS_CPMFCR_RAMTYPE) << 24; + pram_ptr->fen_genfcc.fcc_rbase = (unsigned int)(&rtx.rxbd[rxIdx]); + pram_ptr->fen_genfcc.fcc_rbdstat = 0; + pram_ptr->fen_genfcc.fcc_rbdlen = 0; + pram_ptr->fen_genfcc.fcc_rdptr = 0; + /* localbus SDRAM should be preferred */ + pram_ptr->fen_genfcc.fcc_tstate = (CPMFCR_GBL | CPMFCR_EB | + CONFIG_SYS_CPMFCR_RAMTYPE) << 24; + pram_ptr->fen_genfcc.fcc_tbase = (unsigned int)(&rtx.txbd[txIdx]); + pram_ptr->fen_genfcc.fcc_tbdstat = 0; + pram_ptr->fen_genfcc.fcc_tbdlen = 0; + pram_ptr->fen_genfcc.fcc_tdptr = 0; + + /* protocol-specific area */ + pram_ptr->fen_statbuf = 0x0; + pram_ptr->fen_cmask = 0xdebb20e3; /* CRC mask */ + pram_ptr->fen_cpres = 0xffffffff; /* CRC preset */ + pram_ptr->fen_crcec = 0; + pram_ptr->fen_alec = 0; + pram_ptr->fen_disfc = 0; + pram_ptr->fen_retlim = 15; /* Retry limit threshold */ + pram_ptr->fen_retcnt = 0; + pram_ptr->fen_pper = 0; + pram_ptr->fen_boffcnt = 0; + pram_ptr->fen_gaddrh = 0; + pram_ptr->fen_gaddrl = 0; + pram_ptr->fen_mflr = PKT_MAXBUF_SIZE; /* maximum frame length register */ + /* + * Set Ethernet station address. + * + * This is supplied in the board information structure, so we + * copy that into the controller. + * So far we have only been given one Ethernet address. We make + * it unique by setting a few bits in the upper byte of the + * non-static part of the address. + */ +#define ea eth_get_dev()->enetaddr + pram_ptr->fen_paddrh = (ea[5] << 8) + ea[4]; + pram_ptr->fen_paddrm = (ea[3] << 8) + ea[2]; + pram_ptr->fen_paddrl = (ea[1] << 8) + ea[0]; +#undef ea + pram_ptr->fen_ibdcount = 0; + pram_ptr->fen_ibdstart = 0; + pram_ptr->fen_ibdend = 0; + pram_ptr->fen_txlen = 0; + pram_ptr->fen_iaddrh = 0; /* disable hash */ + pram_ptr->fen_iaddrl = 0; + pram_ptr->fen_minflr = PKT_MINBUF_SIZE; /* minimum frame length register: 64 */ + /* pad pointer. use tiptr since we don't need a specific padding char */ + pram_ptr->fen_padptr = pram_ptr->fen_genfcc.fcc_tiptr; + pram_ptr->fen_maxd1 = PKT_MAXDMA_SIZE; /* maximum DMA1 length:1520 */ + pram_ptr->fen_maxd2 = PKT_MAXDMA_SIZE; /* maximum DMA2 length:1520 */ + +#if defined(ET_DEBUG) + printf("parm_ptr(0xff788500) = %p\n",pram_ptr); + printf("pram_ptr->fen_genfcc.fcc_rbase %08x\n", + pram_ptr->fen_genfcc.fcc_rbase); + printf("pram_ptr->fen_genfcc.fcc_tbase %08x\n", + pram_ptr->fen_genfcc.fcc_tbase); +#endif + + /* 28.9 - (8)(9): clear out events in FCCE */ + /* 28.9 - (9): FCCM: mask all events */ + if(info->ether_index == 0) { + cpm->im_cpm_fcc1.fcce = ~0x0; + cpm->im_cpm_fcc1.fccm = 0; + } else if (info->ether_index == 1) { + cpm->im_cpm_fcc2.fcce = ~0x0; + cpm->im_cpm_fcc2.fccm = 0; + } else if (info->ether_index == 2) { + cpm->im_cpm_fcc3.fcce = ~0x0; + cpm->im_cpm_fcc3.fccm = 0; + } + + /* 28.9 - (10-12): we don't use ethernet interrupts */ + + /* 28.9 - (13) + * + * Let's re-initialize the channel now. We have to do it later + * than the manual describes because we have just now finished + * the BD initialization. + */ + cp->cpcr = mk_cr_cmd(info->cpm_cr_enet_page, + info->cpm_cr_enet_sblock, + 0x0c, + CPM_CR_INIT_TRX) | CPM_CR_FLG; + do { + __asm__ __volatile__ ("eieio"); + } while (cp->cpcr & CPM_CR_FLG); + + /* 28.9 - (14): enable tx/rx in gfmr */ + if(info->ether_index == 0) { + cpm->im_cpm_fcc1.gfmr |= FCC_GFMR_ENT | FCC_GFMR_ENR; + } else if (info->ether_index == 1) { + cpm->im_cpm_fcc2.gfmr |= FCC_GFMR_ENT | FCC_GFMR_ENR; + } else if (info->ether_index == 2) { + cpm->im_cpm_fcc3.gfmr |= FCC_GFMR_ENT | FCC_GFMR_ENR; + } + + return 1; +} + +static void fec_halt(struct eth_device* dev) +{ + struct ether_fcc_info_s * info = dev->priv; + volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR; + + /* write GFMR: disable tx/rx */ + if(info->ether_index == 0) { + cpm->im_cpm_fcc1.gfmr &= ~(FCC_GFMR_ENT | FCC_GFMR_ENR); + } else if(info->ether_index == 1) { + cpm->im_cpm_fcc2.gfmr &= ~(FCC_GFMR_ENT | FCC_GFMR_ENR); + } else if(info->ether_index == 2) { + cpm->im_cpm_fcc3.gfmr &= ~(FCC_GFMR_ENT | FCC_GFMR_ENR); + } +} + +int fec_initialize(bd_t *bis) +{ + struct eth_device* dev; + int i; + + for (i = 0; i < sizeof(ether_fcc_info) / sizeof(ether_fcc_info[0]); i++) + { + dev = (struct eth_device*) malloc(sizeof *dev); + memset(dev, 0, sizeof *dev); + + sprintf(dev->name, "FCC%d ETHERNET", + ether_fcc_info[i].ether_index + 1); + dev->priv = ðer_fcc_info[i]; + dev->init = fec_init; + dev->halt = fec_halt; + dev->send = fec_send; + dev->recv = fec_recv; + + eth_register(dev); + +#if (defined(CONFIG_MII) || defined(CONFIG_CMD_MII)) \ + && defined(CONFIG_BITBANGMII) + miiphy_register(dev->name, + bb_miiphy_read, bb_miiphy_write); +#endif + } + + return 1; +} + +#endif diff --git a/arch/ppc/cpu/mpc85xx/fdt.c b/arch/ppc/cpu/mpc85xx/fdt.c new file mode 100644 index 0000000..1d11ab4 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/fdt.c @@ -0,0 +1,417 @@ +/* + * Copyright 2007-2009 Freescale Semiconductor, Inc. + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <libfdt.h> +#include <fdt_support.h> +#include <asm/processor.h> +#include <linux/ctype.h> +#ifdef CONFIG_FSL_ESDHC +#include <fsl_esdhc.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +extern void ft_qe_setup(void *blob); +extern void ft_fixup_num_cores(void *blob); + +#ifdef CONFIG_MP +#include "mp.h" + +void ft_fixup_cpu(void *blob, u64 memory_limit) +{ + int off; + ulong spin_tbl_addr = get_spin_phys_addr(); + u32 bootpg = determine_mp_bootpg(); + u32 id = get_my_id(); + + off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); + while (off != -FDT_ERR_NOTFOUND) { + u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); + + if (reg) { + if (*reg == id) { + fdt_setprop_string(blob, off, "status", "okay"); + } else { + u64 val = *reg * SIZE_BOOT_ENTRY + spin_tbl_addr; + val = cpu_to_fdt32(val); + fdt_setprop_string(blob, off, "status", + "disabled"); + fdt_setprop_string(blob, off, "enable-method", + "spin-table"); + fdt_setprop(blob, off, "cpu-release-addr", + &val, sizeof(val)); + } + } else { + printf ("cpu NULL\n"); + } + off = fdt_node_offset_by_prop_value(blob, off, + "device_type", "cpu", 4); + } + + /* Reserve the boot page so OSes dont use it */ + if ((u64)bootpg < memory_limit) { + off = fdt_add_mem_rsv(blob, bootpg, (u64)4096); + if (off < 0) + printf("%s: %s\n", __FUNCTION__, fdt_strerror(off)); + } +} +#endif + +#define ft_fixup_l3cache(x, y) + +#if defined(CONFIG_L2_CACHE) +/* return size in kilobytes */ +static inline u32 l2cache_size(void) +{ + volatile ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR; + volatile u32 l2siz_field = (l2cache->l2ctl >> 28) & 0x3; + u32 ver = SVR_SOC_VER(get_svr()); + + switch (l2siz_field) { + case 0x0: + break; + case 0x1: + if (ver == SVR_8540 || ver == SVR_8560 || + ver == SVR_8541 || ver == SVR_8541_E || + ver == SVR_8555 || ver == SVR_8555_E) + return 128; + else + return 256; + break; + case 0x2: + if (ver == SVR_8540 || ver == SVR_8560 || + ver == SVR_8541 || ver == SVR_8541_E || + ver == SVR_8555 || ver == SVR_8555_E) + return 256; + else + return 512; + break; + case 0x3: + return 1024; + break; + } + + return 0; +} + +static inline void ft_fixup_l2cache(void *blob) +{ + int len, off; + u32 *ph; + struct cpu_type *cpu = identify_cpu(SVR_SOC_VER(get_svr())); + char compat_buf[38]; + + const u32 line_size = 32; + const u32 num_ways = 8; + const u32 size = l2cache_size() * 1024; + const u32 num_sets = size / (line_size * num_ways); + + off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); + if (off < 0) { + debug("no cpu node fount\n"); + return; + } + + ph = (u32 *)fdt_getprop(blob, off, "next-level-cache", 0); + + if (ph == NULL) { + debug("no next-level-cache property\n"); + return ; + } + + off = fdt_node_offset_by_phandle(blob, *ph); + if (off < 0) { + printf("%s: %s\n", __func__, fdt_strerror(off)); + return ; + } + + if (cpu) { + if (isdigit(cpu->name[0])) + len = sprintf(compat_buf, + "fsl,mpc%s-l2-cache-controller", cpu->name); + else + len = sprintf(compat_buf, + "fsl,%c%s-l2-cache-controller", + tolower(cpu->name[0]), cpu->name + 1); + + sprintf(&compat_buf[len + 1], "cache"); + } + fdt_setprop(blob, off, "cache-unified", NULL, 0); + fdt_setprop_cell(blob, off, "cache-block-size", line_size); + fdt_setprop_cell(blob, off, "cache-size", size); + fdt_setprop_cell(blob, off, "cache-sets", num_sets); + fdt_setprop_cell(blob, off, "cache-level", 2); + fdt_setprop(blob, off, "compatible", compat_buf, sizeof(compat_buf)); + + /* we dont bother w/L3 since no platform of this type has one */ +} +#elif defined(CONFIG_BACKSIDE_L2_CACHE) +static inline void ft_fixup_l2cache(void *blob) +{ + int off, l2_off, l3_off = -1; + u32 *ph; + u32 l2cfg0 = mfspr(SPRN_L2CFG0); + u32 size, line_size, num_ways, num_sets; + + size = (l2cfg0 & 0x3fff) * 64 * 1024; + num_ways = ((l2cfg0 >> 14) & 0x1f) + 1; + line_size = (((l2cfg0 >> 23) & 0x3) + 1) * 32; + num_sets = size / (line_size * num_ways); + + off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); + + while (off != -FDT_ERR_NOTFOUND) { + ph = (u32 *)fdt_getprop(blob, off, "next-level-cache", 0); + + if (ph == NULL) { + debug("no next-level-cache property\n"); + goto next; + } + + l2_off = fdt_node_offset_by_phandle(blob, *ph); + if (l2_off < 0) { + printf("%s: %s\n", __func__, fdt_strerror(off)); + goto next; + } + +#ifdef CONFIG_SYS_CACHE_STASHING + { + u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); + if (reg) + fdt_setprop_cell(blob, l2_off, "cache-stash-id", + (*reg * 2) + 32 + 1); + } +#endif + + fdt_setprop(blob, l2_off, "cache-unified", NULL, 0); + fdt_setprop_cell(blob, l2_off, "cache-block-size", line_size); + fdt_setprop_cell(blob, l2_off, "cache-size", size); + fdt_setprop_cell(blob, l2_off, "cache-sets", num_sets); + fdt_setprop_cell(blob, l2_off, "cache-level", 2); + fdt_setprop(blob, l2_off, "compatible", "cache", 6); + + if (l3_off < 0) { + ph = (u32 *)fdt_getprop(blob, l2_off, "next-level-cache", 0); + + if (ph == NULL) { + debug("no next-level-cache property\n"); + goto next; + } + l3_off = *ph; + } +next: + off = fdt_node_offset_by_prop_value(blob, off, + "device_type", "cpu", 4); + } + if (l3_off > 0) { + l3_off = fdt_node_offset_by_phandle(blob, l3_off); + if (l3_off < 0) { + printf("%s: %s\n", __func__, fdt_strerror(off)); + return ; + } + ft_fixup_l3cache(blob, l3_off); + } +} +#else +#define ft_fixup_l2cache(x) +#endif + +static inline void ft_fixup_cache(void *blob) +{ + int off; + + off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); + + while (off != -FDT_ERR_NOTFOUND) { + u32 l1cfg0 = mfspr(SPRN_L1CFG0); + u32 l1cfg1 = mfspr(SPRN_L1CFG1); + u32 isize, iline_size, inum_sets, inum_ways; + u32 dsize, dline_size, dnum_sets, dnum_ways; + + /* d-side config */ + dsize = (l1cfg0 & 0x7ff) * 1024; + dnum_ways = ((l1cfg0 >> 11) & 0xff) + 1; + dline_size = (((l1cfg0 >> 23) & 0x3) + 1) * 32; + dnum_sets = dsize / (dline_size * dnum_ways); + + fdt_setprop_cell(blob, off, "d-cache-block-size", dline_size); + fdt_setprop_cell(blob, off, "d-cache-size", dsize); + fdt_setprop_cell(blob, off, "d-cache-sets", dnum_sets); + +#ifdef CONFIG_SYS_CACHE_STASHING + { + u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); + if (reg) + fdt_setprop_cell(blob, off, "cache-stash-id", + (*reg * 2) + 32 + 0); + } +#endif + + /* i-side config */ + isize = (l1cfg1 & 0x7ff) * 1024; + inum_ways = ((l1cfg1 >> 11) & 0xff) + 1; + iline_size = (((l1cfg1 >> 23) & 0x3) + 1) * 32; + inum_sets = isize / (iline_size * inum_ways); + + fdt_setprop_cell(blob, off, "i-cache-block-size", iline_size); + fdt_setprop_cell(blob, off, "i-cache-size", isize); + fdt_setprop_cell(blob, off, "i-cache-sets", inum_sets); + + off = fdt_node_offset_by_prop_value(blob, off, + "device_type", "cpu", 4); + } + + ft_fixup_l2cache(blob); +} + + +void fdt_add_enet_stashing(void *fdt) +{ + do_fixup_by_compat(fdt, "gianfar", "bd-stash", NULL, 0, 1); + + do_fixup_by_compat_u32(fdt, "gianfar", "rx-stash-len", 96, 1); + + do_fixup_by_compat_u32(fdt, "gianfar", "rx-stash-idx", 0, 1); +} + +#if defined(CONFIG_SYS_DPAA_FMAN) || defined(CONFIG_SYS_DPAA_PME) +static void ft_fixup_clks(void *blob, const char *alias, unsigned long freq) +{ + const char *path = fdt_get_alias(blob, alias); + + int off = fdt_path_offset(blob, path); + + if (off >= 0) { + off = fdt_setprop_cell(blob, off, "clock-frequency", freq); + if (off > 0) + printf("WARNING enable to set clock-frequency " + "for %s: %s\n", alias, fdt_strerror(off)); + } +} + +static void ft_fixup_dpaa_clks(void *blob) +{ + sys_info_t sysinfo; + + get_sys_info(&sysinfo); + ft_fixup_clks(blob, "fman0", sysinfo.freqFMan[0]); + +#if (CONFIG_SYS_NUM_FMAN == 2) + ft_fixup_clks(blob, "fman1", sysinfo.freqFMan[1]); +#endif + +#ifdef CONFIG_SYS_DPAA_PME + ft_fixup_clks(blob, "pme", sysinfo.freqPME); +#endif +} +#else +#define ft_fixup_dpaa_clks(x) +#endif + +#ifdef CONFIG_QE +static void ft_fixup_qe_snum(void *blob) +{ + unsigned int svr; + + svr = mfspr(SPRN_SVR); + if (SVR_SOC_VER(svr) == SVR_8569_E) { + if(IS_SVR_REV(svr, 1, 0)) + do_fixup_by_compat_u32(blob, "fsl,qe", + "fsl,qe-num-snums", 46, 1); + else + do_fixup_by_compat_u32(blob, "fsl,qe", + "fsl,qe-num-snums", 76, 1); + } +} +#endif + +void ft_cpu_setup(void *blob, bd_t *bd) +{ + int off; + int val; + sys_info_t sysinfo; + + /* delete crypto node if not on an E-processor */ + if (!IS_E_PROCESSOR(get_svr())) + fdt_fixup_crypto_node(blob, 0); + + fdt_fixup_ethernet(blob); + + fdt_add_enet_stashing(blob); + + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "timebase-frequency", get_tbclk(), 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "bus-frequency", bd->bi_busfreq, 1); + get_sys_info(&sysinfo); + off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); + while (off != -FDT_ERR_NOTFOUND) { + u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); + val = cpu_to_fdt32(sysinfo.freqProcessor[*reg]); + fdt_setprop(blob, off, "clock-frequency", &val, 4); + off = fdt_node_offset_by_prop_value(blob, off, "device_type", + "cpu", 4); + } + do_fixup_by_prop_u32(blob, "device_type", "soc", 4, + "bus-frequency", bd->bi_busfreq, 1); + + do_fixup_by_compat_u32(blob, "fsl,pq3-localbus", + "bus-frequency", gd->lbc_clk, 1); + do_fixup_by_compat_u32(blob, "fsl,elbc", + "bus-frequency", gd->lbc_clk, 1); +#ifdef CONFIG_QE + ft_qe_setup(blob); + ft_fixup_qe_snum(blob); +#endif + +#ifdef CONFIG_SYS_NS16550 + do_fixup_by_compat_u32(blob, "ns16550", + "clock-frequency", CONFIG_SYS_NS16550_CLK, 1); +#endif + +#ifdef CONFIG_CPM2 + do_fixup_by_compat_u32(blob, "fsl,cpm2-scc-uart", + "current-speed", bd->bi_baudrate, 1); + + do_fixup_by_compat_u32(blob, "fsl,cpm2-brg", + "clock-frequency", bd->bi_brgfreq, 1); +#endif + + fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize); + +#ifdef CONFIG_MP + ft_fixup_cpu(blob, (u64)bd->bi_memstart + (u64)bd->bi_memsize); +#endif + ft_fixup_num_cores(blob); + + ft_fixup_cache(blob); + +#if defined(CONFIG_FSL_ESDHC) + fdt_fixup_esdhc(blob, bd); +#endif + + ft_fixup_dpaa_clks(blob); +} diff --git a/arch/ppc/cpu/mpc85xx/fixed_ivor.S b/arch/ppc/cpu/mpc85xx/fixed_ivor.S new file mode 100644 index 0000000..320cae3 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/fixed_ivor.S @@ -0,0 +1,79 @@ +/* + * Copyright 2009 Freescale Semiconductor, Inc. + * + * Kumar Gala <kumar.gala@freescale.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* This file is intended to be included by other asm code since + * we will want to execute this on both the primary core when + * it does a bootm and the secondary core's that get released + * out of the spin table */ + +#define SET_IVOR(vector_number, vector_offset) \ + li r3,vector_offset@l; \ + mtspr SPRN_IVOR##vector_number,r3; + +#define SET_GIVOR(vector_number, vector_offset) \ + li r3,vector_offset@l; \ + mtspr SPRN_GIVOR##vector_number,r3; + + SET_IVOR(0, 0x020) /* Critical Input */ + SET_IVOR(1, 0x000) /* Machine Check */ + SET_IVOR(2, 0x060) /* Data Storage */ + SET_IVOR(3, 0x080) /* Instruction Storage */ + SET_IVOR(4, 0x0a0) /* External Input */ + SET_IVOR(5, 0x0c0) /* Alignment */ + SET_IVOR(6, 0x0e0) /* Program */ + SET_IVOR(7, 0x100) /* FP Unavailable */ + SET_IVOR(8, 0x120) /* System Call */ + SET_IVOR(9, 0x140) /* Auxiliary Processor Unavailable */ + SET_IVOR(10, 0x160) /* Decrementer */ + SET_IVOR(11, 0x180) /* Fixed Interval Timer */ + SET_IVOR(12, 0x1a0) /* Watchdog Timer */ + SET_IVOR(13, 0x1c0) /* Data TLB Error */ + SET_IVOR(14, 0x1e0) /* Instruction TLB Error */ + SET_IVOR(15, 0x040) /* Debug */ + +/* e500v1 & e500v2 only */ +#ifndef CONFIG_E500MC + SET_IVOR(32, 0x200) /* SPE Unavailable */ + SET_IVOR(33, 0x220) /* Embedded FP Data */ + SET_IVOR(34, 0x240) /* Embedded FP Round */ +#endif + + SET_IVOR(35, 0x260) /* Performance monitor */ + +/* e500mc only */ +#ifdef CONFIG_E500MC + SET_IVOR(36, 0x280) /* Processor doorbell */ + SET_IVOR(37, 0x2a0) /* Processor doorbell critical */ + SET_IVOR(38, 0x2c0) /* Guest Processor doorbell */ + SET_IVOR(39, 0x2e0) /* Guest Processor critical & machine check */ + SET_IVOR(40, 0x300) /* Hypervisor system call */ + SET_IVOR(41, 0x320) /* Hypervisor Priviledge */ + + SET_GIVOR(2, 0x060) /* Guest Data Storage */ + SET_GIVOR(3, 0x080) /* Guest Instruction Storage */ + SET_GIVOR(4, 0x0a0) /* Guest External Input */ + SET_GIVOR(8, 0x120) /* Guest System Call */ + SET_GIVOR(13, 0x1c0) /* Guest Data TLB Error */ + SET_GIVOR(14, 0x1e0) /* Guest Instruction TLB Error */ +#endif diff --git a/arch/ppc/cpu/mpc85xx/interrupts.c b/arch/ppc/cpu/mpc85xx/interrupts.c new file mode 100644 index 0000000..409367d --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/interrupts.c @@ -0,0 +1,110 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2002 (440 port) + * Scott McNutt, Artesyn Communication Producs, smcnutt@artsyncp.com + * + * (C) Copyright 2003 Motorola Inc. (MPC85xx port) + * Xianghua Xiao (X.Xiao@motorola.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <asm/processor.h> +#include <asm/io.h> + +int interrupt_init_cpu(unsigned int *decrementer_count) +{ + ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC85xx_PIC_ADDR; + + out_be32(&pic->gcr, MPC85xx_PICGCR_RST); + while (in_be32(&pic->gcr) & MPC85xx_PICGCR_RST) + ; + out_be32(&pic->gcr, MPC85xx_PICGCR_M); + in_be32(&pic->gcr); + + *decrementer_count = get_tbclk() / CONFIG_SYS_HZ; + + /* PIE is same as DIE, dec interrupt enable */ + mtspr(SPRN_TCR, TCR_PIE); + +#ifdef CONFIG_INTERRUPTS + pic->iivpr1 = 0x810001; /* 50220 enable ecm interrupts */ + debug("iivpr1@%x = %x\n", (uint)&pic->iivpr1, pic->iivpr1); + + pic->iivpr2 = 0x810002; /* 50240 enable ddr interrupts */ + debug("iivpr2@%x = %x\n", (uint)&pic->iivpr2, pic->iivpr2); + + pic->iivpr3 = 0x810003; /* 50260 enable lbc interrupts */ + debug("iivpr3@%x = %x\n", (uint)&pic->iivpr3, pic->iivpr3); + +#ifdef CONFIG_PCI1 + pic->iivpr8 = 0x810008; /* enable pci1 interrupts */ + debug("iivpr8@%x = %x\n", (uint)&pic->iivpr8, pic->iivpr8); +#endif +#if defined(CONFIG_PCI2) || defined(CONFIG_PCIE2) + pic->iivpr9 = 0x810009; /* enable pci1 interrupts */ + debug("iivpr9@%x = %x\n", (uint)&pic->iivpr9, pic->iivpr9); +#endif +#ifdef CONFIG_PCIE1 + pic->iivpr10 = 0x81000a; /* enable pcie1 interrupts */ + debug("iivpr10@%x = %x\n", (uint)&pic->iivpr10, pic->iivpr10); +#endif +#ifdef CONFIG_PCIE3 + pic->iivpr11 = 0x81000b; /* enable pcie3 interrupts */ + debug("iivpr11@%x = %x\n", (uint)&pic->iivpr11, pic->iivpr11); +#endif + + pic->ctpr=0; /* 40080 clear current task priority register */ +#endif + + return (0); +} + +/* Install and free a interrupt handler. Not implemented yet. */ + +void +irq_install_handler(int vec, interrupt_handler_t *handler, void *arg) +{ + return; +} + +void +irq_free_handler(int vec) +{ + return; +} + +void timer_interrupt_cpu(struct pt_regs *regs) +{ + /* PIS is same as DIS, dec interrupt status */ + mtspr(SPRN_TSR, TSR_PIS); +} + +#if defined(CONFIG_CMD_IRQ) +/* irqinfo - print information about PCI devices,not implemented. */ +int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + return 0; +} +#endif diff --git a/arch/ppc/cpu/mpc85xx/mp.c b/arch/ppc/cpu/mpc85xx/mp.c new file mode 100644 index 0000000..826bf32 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/mp.c @@ -0,0 +1,355 @@ +/* + * Copyright 2008-2010 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/processor.h> +#include <ioports.h> +#include <lmb.h> +#include <asm/io.h> +#include <asm/mmu.h> +#include <asm/fsl_law.h> +#include "mp.h" + +DECLARE_GLOBAL_DATA_PTR; + +u32 get_my_id() +{ + return mfspr(SPRN_PIR); +} + +int cpu_reset(int nr) +{ + volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR); + out_be32(&pic->pir, 1 << nr); + /* the dummy read works around an errata on early 85xx MP PICs */ + (void)in_be32(&pic->pir); + out_be32(&pic->pir, 0x0); + + return 0; +} + +int cpu_status(int nr) +{ + u32 *table, id = get_my_id(); + + if (nr == id) { + table = (u32 *)get_spin_virt_addr(); + printf("table base @ 0x%p\n", table); + } else { + table = (u32 *)get_spin_virt_addr() + nr * NUM_BOOT_ENTRY; + printf("Running on cpu %d\n", id); + printf("\n"); + printf("table @ 0x%p\n", table); + printf(" addr - 0x%08x\n", table[BOOT_ENTRY_ADDR_LOWER]); + printf(" pir - 0x%08x\n", table[BOOT_ENTRY_PIR]); + printf(" r3 - 0x%08x\n", table[BOOT_ENTRY_R3_LOWER]); + printf(" r6 - 0x%08x\n", table[BOOT_ENTRY_R6_LOWER]); + } + + return 0; +} + +#ifdef CONFIG_FSL_CORENET +int cpu_disable(int nr) +{ + volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + + setbits_be32(&gur->coredisrl, 1 << nr); + + return 0; +} +#else +int cpu_disable(int nr) +{ + volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + + switch (nr) { + case 0: + setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_CPU0); + break; + case 1: + setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_CPU1); + break; + default: + printf("Invalid cpu number for disable %d\n", nr); + return 1; + } + + return 0; +} +#endif + +static u8 boot_entry_map[4] = { + 0, + BOOT_ENTRY_PIR, + BOOT_ENTRY_R3_LOWER, + BOOT_ENTRY_R6_LOWER, +}; + +int cpu_release(int nr, int argc, char *argv[]) +{ + u32 i, val, *table = (u32 *)get_spin_virt_addr() + nr * NUM_BOOT_ENTRY; + u64 boot_addr; + + if (nr == get_my_id()) { + printf("Invalid to release the boot core.\n\n"); + return 1; + } + + if (argc != 4) { + printf("Invalid number of arguments to release.\n\n"); + return 1; + } + + boot_addr = simple_strtoull(argv[0], NULL, 16); + + /* handle pir, r3, r6 */ + for (i = 1; i < 4; i++) { + if (argv[i][0] != '-') { + u8 entry = boot_entry_map[i]; + val = simple_strtoul(argv[i], NULL, 16); + table[entry] = val; + } + } + + table[BOOT_ENTRY_ADDR_UPPER] = (u32)(boot_addr >> 32); + + /* ensure all table updates complete before final address write */ + eieio(); + + table[BOOT_ENTRY_ADDR_LOWER] = (u32)(boot_addr & 0xffffffff); + + return 0; +} + +u32 determine_mp_bootpg(void) +{ + /* if we have 4G or more of memory, put the boot page at 4Gb-4k */ + if ((u64)gd->ram_size > 0xfffff000) + return (0xfffff000); + + return (gd->ram_size - 4096); +} + +ulong get_spin_phys_addr(void) +{ + extern ulong __secondary_start_page; + extern ulong __spin_table; + + return (determine_mp_bootpg() + + (ulong)&__spin_table - (ulong)&__secondary_start_page); +} + +ulong get_spin_virt_addr(void) +{ + extern ulong __secondary_start_page; + extern ulong __spin_table; + + return (CONFIG_BPTR_VIRT_ADDR + + (ulong)&__spin_table - (ulong)&__secondary_start_page); +} + +#ifdef CONFIG_FSL_CORENET +static void plat_mp_up(unsigned long bootpg) +{ + u32 up, cpu_up_mask, whoami; + u32 *table = (u32 *)get_spin_virt_addr(); + volatile ccsr_gur_t *gur; + volatile ccsr_local_t *ccm; + volatile ccsr_rcpm_t *rcpm; + volatile ccsr_pic_t *pic; + int timeout = 10; + u32 nr_cpus; + struct law_entry e; + + gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + ccm = (void *)(CONFIG_SYS_FSL_CORENET_CCM_ADDR); + rcpm = (void *)(CONFIG_SYS_FSL_CORENET_RCPM_ADDR); + pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR); + + nr_cpus = ((in_be32(&pic->frr) >> 8) & 0xff) + 1; + + whoami = in_be32(&pic->whoami); + cpu_up_mask = 1 << whoami; + out_be32(&ccm->bstrl, bootpg); + + e = find_law(bootpg); + out_be32(&ccm->bstrar, LAW_EN | e.trgt_id << 20 | LAW_SIZE_4K); + + /* readback to sync write */ + in_be32(&ccm->bstrar); + + /* disable time base at the platform */ + out_be32(&rcpm->ctbenrl, cpu_up_mask); + + /* release the hounds */ + up = ((1 << nr_cpus) - 1); + out_be32(&gur->brrl, up); + + /* wait for everyone */ + while (timeout) { + int i; + for (i = 0; i < nr_cpus; i++) { + if (table[i * NUM_BOOT_ENTRY + BOOT_ENTRY_ADDR_LOWER]) + cpu_up_mask |= (1 << i); + }; + + if ((cpu_up_mask & up) == up) + break; + + udelay(100); + timeout--; + } + + if (timeout == 0) + printf("CPU up timeout. CPU up mask is %x should be %x\n", + cpu_up_mask, up); + + /* enable time base at the platform */ + out_be32(&rcpm->ctbenrl, 0); + mtspr(SPRN_TBWU, 0); + mtspr(SPRN_TBWL, 0); + out_be32(&rcpm->ctbenrl, (1 << nr_cpus) - 1); + +#ifdef CONFIG_MPC8xxx_DISABLE_BPTR + /* + * Disabling Boot Page Translation allows the memory region 0xfffff000 + * to 0xffffffff to be used normally. Leaving Boot Page Translation + * enabled remaps 0xfffff000 to SDRAM which makes that memory region + * unusable for normal operation but it does allow OSes to easily + * reset a processor core to put it back into U-Boot's spinloop. + */ + clrbits_be32(&ecm->bptr, 0x80000000); +#endif +} +#else +static void plat_mp_up(unsigned long bootpg) +{ + u32 up, cpu_up_mask, whoami; + u32 *table = (u32 *)get_spin_virt_addr(); + volatile u32 bpcr; + volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR); + volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR); + u32 devdisr; + int timeout = 10; + + whoami = in_be32(&pic->whoami); + out_be32(&ecm->bptr, 0x80000000 | (bootpg >> 12)); + + /* disable time base at the platform */ + devdisr = in_be32(&gur->devdisr); + if (whoami) + devdisr |= MPC85xx_DEVDISR_TB0; + else + devdisr |= MPC85xx_DEVDISR_TB1; + out_be32(&gur->devdisr, devdisr); + + /* release the hounds */ + up = ((1 << cpu_numcores()) - 1); + bpcr = in_be32(&ecm->eebpcr); + bpcr |= (up << 24); + out_be32(&ecm->eebpcr, bpcr); + asm("sync; isync; msync"); + + cpu_up_mask = 1 << whoami; + /* wait for everyone */ + while (timeout) { + int i; + for (i = 0; i < cpu_numcores(); i++) { + if (table[i * NUM_BOOT_ENTRY + BOOT_ENTRY_ADDR_LOWER]) + cpu_up_mask |= (1 << i); + }; + + if ((cpu_up_mask & up) == up) + break; + + udelay(100); + timeout--; + } + + if (timeout == 0) + printf("CPU up timeout. CPU up mask is %x should be %x\n", + cpu_up_mask, up); + + /* enable time base at the platform */ + if (whoami) + devdisr |= MPC85xx_DEVDISR_TB1; + else + devdisr |= MPC85xx_DEVDISR_TB0; + out_be32(&gur->devdisr, devdisr); + mtspr(SPRN_TBWU, 0); + mtspr(SPRN_TBWL, 0); + + devdisr &= ~(MPC85xx_DEVDISR_TB0 | MPC85xx_DEVDISR_TB1); + out_be32(&gur->devdisr, devdisr); + +#ifdef CONFIG_MPC8xxx_DISABLE_BPTR + /* + * Disabling Boot Page Translation allows the memory region 0xfffff000 + * to 0xffffffff to be used normally. Leaving Boot Page Translation + * enabled remaps 0xfffff000 to SDRAM which makes that memory region + * unusable for normal operation but it does allow OSes to easily + * reset a processor core to put it back into U-Boot's spinloop. + */ + clrbits_be32(&ecm->bptr, 0x80000000); +#endif +} +#endif + +void cpu_mp_lmb_reserve(struct lmb *lmb) +{ + u32 bootpg = determine_mp_bootpg(); + + lmb_reserve(lmb, bootpg, 4096); +} + +void setup_mp(void) +{ + extern ulong __secondary_start_page; + extern ulong __bootpg_addr; + ulong fixup = (ulong)&__secondary_start_page; + u32 bootpg = determine_mp_bootpg(); + + /* Store the bootpg's SDRAM address for use by secondary CPU cores */ + __bootpg_addr = bootpg; + + /* look for the tlb covering the reset page, there better be one */ + int i = find_tlb_idx((void *)CONFIG_BPTR_VIRT_ADDR, 1); + + /* we found a match */ + if (i != -1) { + /* map reset page to bootpg so we can copy code there */ + disable_tlb(i); + + set_tlb(1, CONFIG_BPTR_VIRT_ADDR, bootpg, /* tlb, epn, rpn */ + MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, /* perms, wimge */ + 0, i, BOOKE_PAGESZ_4K, 1); /* ts, esel, tsize, iprot */ + + memcpy((void *)CONFIG_BPTR_VIRT_ADDR, (void *)fixup, 4096); + + plat_mp_up(bootpg); + } else { + puts("WARNING: No reset page TLB. " + "Skipping secondary core setup\n"); + } +} diff --git a/arch/ppc/cpu/mpc85xx/mp.h b/arch/ppc/cpu/mpc85xx/mp.h new file mode 100644 index 0000000..3422cc1 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/mp.h @@ -0,0 +1,21 @@ +#ifndef __MPC85XX_MP_H_ +#define __MPC85XX_MP_H_ + +#include <asm/mp.h> + +ulong get_spin_phys_addr(void); +ulong get_spin_virt_addr(void); +u32 get_my_id(void); + +#define BOOT_ENTRY_ADDR_UPPER 0 +#define BOOT_ENTRY_ADDR_LOWER 1 +#define BOOT_ENTRY_R3_UPPER 2 +#define BOOT_ENTRY_R3_LOWER 3 +#define BOOT_ENTRY_RESV 4 +#define BOOT_ENTRY_PIR 5 +#define BOOT_ENTRY_R6_UPPER 6 +#define BOOT_ENTRY_R6_LOWER 7 +#define NUM_BOOT_ENTRY 8 +#define SIZE_BOOT_ENTRY (NUM_BOOT_ENTRY * sizeof(u32)) + +#endif diff --git a/arch/ppc/cpu/mpc85xx/mpc8536_serdes.c b/arch/ppc/cpu/mpc85xx/mpc8536_serdes.c new file mode 100644 index 0000000..cb6a6f0 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/mpc8536_serdes.c @@ -0,0 +1,180 @@ +/* + * Copyright (C) 2008 Freescale Semicondutor, Inc. + * Dave Liu <daveliu@freescale.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <config.h> +#include <common.h> +#include <asm/io.h> +#include <asm/immap_85xx.h> + +/* PORDEVSR register */ +#define GUTS_PORDEVSR_OFFS 0xc +#define GUTS_PORDEVSR_SERDES2_IO_SEL 0x38000000 +#define GUTS_PORDEVSR_SERDES2_IO_SEL_SHIFT 27 + +/* SerDes CR0 register */ +#define FSL_SRDSCR0_OFFS 0x0 +#define FSL_SRDSCR0_TXEQA_MASK 0x00007000 +#define FSL_SRDSCR0_TXEQA_SGMII 0x00004000 +#define FSL_SRDSCR0_TXEQA_SATA 0x00001000 +#define FSL_SRDSCR0_TXEQE_MASK 0x00000700 +#define FSL_SRDSCR0_TXEQE_SGMII 0x00000400 +#define FSL_SRDSCR0_TXEQE_SATA 0x00000100 + +/* SerDes CR1 register */ +#define FSL_SRDSCR1_OFFS 0x4 +#define FSL_SRDSCR1_LANEA_MASK 0x80200000 +#define FSL_SRDSCR1_LANEA_OFF 0x80200000 +#define FSL_SRDSCR1_LANEE_MASK 0x08020000 +#define FSL_SRDSCR1_LANEE_OFF 0x08020000 + +/* SerDes CR2 register */ +#define FSL_SRDSCR2_OFFS 0x8 +#define FSL_SRDSCR2_EICA_MASK 0x00001f00 +#define FSL_SRDSCR2_EICA_SGMII 0x00000400 +#define FSL_SRDSCR2_EICA_SATA 0x00001400 +#define FSL_SRDSCR2_EICE_MASK 0x0000001f +#define FSL_SRDSCR2_EICE_SGMII 0x00000004 +#define FSL_SRDSCR2_EICE_SATA 0x00000014 + +/* SerDes CR3 register */ +#define FSL_SRDSCR3_OFFS 0xc +#define FSL_SRDSCR3_LANEA_MASK 0x3f000700 +#define FSL_SRDSCR3_LANEA_SGMII 0x00000000 +#define FSL_SRDSCR3_LANEA_SATA 0x15000500 +#define FSL_SRDSCR3_LANEE_MASK 0x003f0007 +#define FSL_SRDSCR3_LANEE_SGMII 0x00000000 +#define FSL_SRDSCR3_LANEE_SATA 0x00150005 + +void fsl_serdes_init(void) +{ + void *guts = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + void *sd = (void *)CONFIG_SYS_MPC85xx_SERDES2_ADDR; + u32 pordevsr = in_be32(guts + GUTS_PORDEVSR_OFFS); + u32 srds2_io_sel; + u32 tmp; + + /* parse the SRDS2_IO_SEL of PORDEVSR */ + srds2_io_sel = (pordevsr & GUTS_PORDEVSR_SERDES2_IO_SEL) + >> GUTS_PORDEVSR_SERDES2_IO_SEL_SHIFT; + + switch (srds2_io_sel) { + case 1: /* Lane A - SATA1, Lane E - SATA2 */ + /* CR 0 */ + tmp = in_be32(sd + FSL_SRDSCR0_OFFS); + tmp &= ~FSL_SRDSCR0_TXEQA_MASK; + tmp |= FSL_SRDSCR0_TXEQA_SATA; + tmp &= ~FSL_SRDSCR0_TXEQE_MASK; + tmp |= FSL_SRDSCR0_TXEQE_SATA; + out_be32(sd + FSL_SRDSCR0_OFFS, tmp); + /* CR 1 */ + tmp = in_be32(sd + FSL_SRDSCR1_OFFS); + tmp &= ~FSL_SRDSCR1_LANEA_MASK; + tmp &= ~FSL_SRDSCR1_LANEE_MASK; + out_be32(sd + FSL_SRDSCR1_OFFS, tmp); + /* CR 2 */ + tmp = in_be32(sd + FSL_SRDSCR2_OFFS); + tmp &= ~FSL_SRDSCR2_EICA_MASK; + tmp |= FSL_SRDSCR2_EICA_SATA; + tmp &= ~FSL_SRDSCR2_EICE_MASK; + tmp |= FSL_SRDSCR2_EICE_SATA; + out_be32(sd + FSL_SRDSCR2_OFFS, tmp); + /* CR 3 */ + tmp = in_be32(sd + FSL_SRDSCR3_OFFS); + tmp &= ~FSL_SRDSCR3_LANEA_MASK; + tmp |= FSL_SRDSCR3_LANEA_SATA; + tmp &= ~FSL_SRDSCR3_LANEE_MASK; + tmp |= FSL_SRDSCR3_LANEE_SATA; + out_be32(sd + FSL_SRDSCR3_OFFS, tmp); + break; + case 3: /* Lane A - SATA1, Lane E - disabled */ + /* CR 0 */ + tmp = in_be32(sd + FSL_SRDSCR0_OFFS); + tmp &= ~FSL_SRDSCR0_TXEQA_MASK; + tmp |= FSL_SRDSCR0_TXEQA_SATA; + out_be32(sd + FSL_SRDSCR0_OFFS, tmp); + /* CR 1 */ + tmp = in_be32(sd + FSL_SRDSCR1_OFFS); + tmp &= ~FSL_SRDSCR1_LANEE_MASK; + tmp |= FSL_SRDSCR1_LANEE_OFF; + out_be32(sd + FSL_SRDSCR1_OFFS, tmp); + /* CR 2 */ + tmp = in_be32(sd + FSL_SRDSCR2_OFFS); + tmp &= ~FSL_SRDSCR2_EICA_MASK; + tmp |= FSL_SRDSCR2_EICA_SATA; + out_be32(sd + FSL_SRDSCR2_OFFS, tmp); + /* CR 3 */ + tmp = in_be32(sd + FSL_SRDSCR3_OFFS); + tmp &= ~FSL_SRDSCR3_LANEA_MASK; + tmp |= FSL_SRDSCR3_LANEA_SATA; + out_be32(sd + FSL_SRDSCR3_OFFS, tmp); + break; + case 4: /* Lane A - eTSEC1 SGMII, Lane E - eTSEC3 SGMII */ + /* CR 0 */ + tmp = in_be32(sd + FSL_SRDSCR0_OFFS); + tmp &= ~FSL_SRDSCR0_TXEQA_MASK; + tmp |= FSL_SRDSCR0_TXEQA_SGMII; + tmp &= ~FSL_SRDSCR0_TXEQE_MASK; + tmp |= FSL_SRDSCR0_TXEQE_SGMII; + out_be32(sd + FSL_SRDSCR0_OFFS, tmp); + /* CR 1 */ + tmp = in_be32(sd + FSL_SRDSCR1_OFFS); + tmp &= ~FSL_SRDSCR1_LANEA_MASK; + tmp &= ~FSL_SRDSCR1_LANEE_MASK; + out_be32(sd + FSL_SRDSCR1_OFFS, tmp); + /* CR 2 */ + tmp = in_be32(sd + FSL_SRDSCR2_OFFS); + tmp &= ~FSL_SRDSCR2_EICA_MASK; + tmp |= FSL_SRDSCR2_EICA_SGMII; + tmp &= ~FSL_SRDSCR2_EICE_MASK; + tmp |= FSL_SRDSCR2_EICE_SGMII; + out_be32(sd + FSL_SRDSCR2_OFFS, tmp); + /* CR 3 */ + tmp = in_be32(sd + FSL_SRDSCR3_OFFS); + tmp &= ~FSL_SRDSCR3_LANEA_MASK; + tmp |= FSL_SRDSCR3_LANEA_SGMII; + tmp &= ~FSL_SRDSCR3_LANEE_MASK; + tmp |= FSL_SRDSCR3_LANEE_SGMII; + out_be32(sd + FSL_SRDSCR3_OFFS, tmp); + break; + case 6: /* Lane A - eTSEC1 SGMII, Lane E - disabled */ + /* CR 0 */ + tmp = in_be32(sd + FSL_SRDSCR0_OFFS); + tmp &= ~FSL_SRDSCR0_TXEQA_MASK; + tmp |= FSL_SRDSCR0_TXEQA_SGMII; + out_be32(sd + FSL_SRDSCR0_OFFS, tmp); + /* CR 1 */ + tmp = in_be32(sd + FSL_SRDSCR1_OFFS); + tmp &= ~FSL_SRDSCR1_LANEE_MASK; + tmp |= FSL_SRDSCR1_LANEE_OFF; + out_be32(sd + FSL_SRDSCR1_OFFS, tmp); + /* CR 2 */ + tmp = in_be32(sd + FSL_SRDSCR2_OFFS); + tmp &= ~FSL_SRDSCR2_EICA_MASK; + tmp |= FSL_SRDSCR2_EICA_SGMII; + out_be32(sd + FSL_SRDSCR2_OFFS, tmp); + /* CR 3 */ + tmp = in_be32(sd + FSL_SRDSCR3_OFFS); + tmp &= ~FSL_SRDSCR3_LANEA_MASK; + tmp |= FSL_SRDSCR3_LANEA_SGMII; + out_be32(sd + FSL_SRDSCR3_OFFS, tmp); + break; + case 7: /* Lane A - disabled, Lane E - disabled */ + /* CR 1 */ + tmp = in_be32(sd + FSL_SRDSCR1_OFFS); + tmp &= ~FSL_SRDSCR1_LANEA_MASK; + tmp |= FSL_SRDSCR1_LANEA_OFF; + tmp &= ~FSL_SRDSCR1_LANEE_MASK; + tmp |= FSL_SRDSCR1_LANEE_OFF; + out_be32(sd + FSL_SRDSCR1_OFFS, tmp); + break; + default: + break; + } +} diff --git a/arch/ppc/cpu/mpc85xx/pci.c b/arch/ppc/cpu/mpc85xx/pci.c new file mode 100644 index 0000000..75d2716 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/pci.c @@ -0,0 +1,230 @@ +/* + * Copyright 2004 Freescale Semiconductor. + * Copyright (C) 2003 Motorola Inc. + * Xianghua Xiao (x.xiao@motorola.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * PCI Configuration space access support for MPC85xx PCI Bridge + */ +#include <common.h> +#include <asm/cpm_85xx.h> +#include <pci.h> + +#if !defined(CONFIG_FSL_PCI_INIT) + +#ifndef CONFIG_SYS_PCI1_MEM_BUS +#define CONFIG_SYS_PCI1_MEM_BUS CONFIG_SYS_PCI1_MEM_BASE +#endif + +#ifndef CONFIG_SYS_PCI1_IO_BUS +#define CONFIG_SYS_PCI1_IO_BUS CONFIG_SYS_PCI1_IO_BASE +#endif + +#ifndef CONFIG_SYS_PCI2_MEM_BUS +#define CONFIG_SYS_PCI2_MEM_BUS CONFIG_SYS_PCI2_MEM_BASE +#endif + +#ifndef CONFIG_SYS_PCI2_IO_BUS +#define CONFIG_SYS_PCI2_IO_BUS CONFIG_SYS_PCI2_IO_BASE +#endif + +static struct pci_controller *pci_hose; + +void +pci_mpc85xx_init(struct pci_controller *board_hose) +{ + u16 reg16; + u32 dev; + + volatile ccsr_pcix_t *pcix = (void *)(CONFIG_SYS_MPC85xx_PCIX_ADDR); +#ifdef CONFIG_MPC85XX_PCI2 + volatile ccsr_pcix_t *pcix2 = (void *)(CONFIG_SYS_MPC85xx_PCIX2_ADDR); +#endif + volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + struct pci_controller * hose; + + pci_hose = board_hose; + + hose = &pci_hose[0]; + + hose->first_busno = 0; + hose->last_busno = 0xff; + + pci_setup_indirect(hose, + (CONFIG_SYS_IMMR+0x8000), + (CONFIG_SYS_IMMR+0x8004)); + + /* + * Hose scan. + */ + dev = PCI_BDF(hose->first_busno, 0, 0); + pci_hose_read_config_word (hose, dev, PCI_COMMAND, ®16); + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16); + + /* + * Clear non-reserved bits in status register. + */ + pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff); + + if (!(gur->pordevsr & MPC85xx_PORDEVSR_PCI1)) { + /* PCI-X init */ + if (CONFIG_SYS_CLK_FREQ < 66000000) + printf("PCI-X will only work at 66 MHz\n"); + + reg16 = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ + | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E; + pci_hose_write_config_word(hose, dev, PCIX_COMMAND, reg16); + } + + pcix->potar1 = (CONFIG_SYS_PCI1_MEM_BUS >> 12) & 0x000fffff; + pcix->potear1 = 0x00000000; + pcix->powbar1 = (CONFIG_SYS_PCI1_MEM_PHYS >> 12) & 0x000fffff; + pcix->powbear1 = 0x00000000; + pcix->powar1 = (POWAR_EN | POWAR_MEM_READ | + POWAR_MEM_WRITE | (__ilog2(CONFIG_SYS_PCI1_MEM_SIZE) - 1)); + + pcix->potar2 = (CONFIG_SYS_PCI1_IO_BUS >> 12) & 0x000fffff; + pcix->potear2 = 0x00000000; + pcix->powbar2 = (CONFIG_SYS_PCI1_IO_PHYS >> 12) & 0x000fffff; + pcix->powbear2 = 0x00000000; + pcix->powar2 = (POWAR_EN | POWAR_IO_READ | + POWAR_IO_WRITE | (__ilog2(CONFIG_SYS_PCI1_IO_SIZE) - 1)); + + pcix->pitar1 = 0x00000000; + pcix->piwbar1 = 0x00000000; + pcix->piwar1 = (PIWAR_EN | PIWAR_PF | PIWAR_LOCAL | + PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP | PIWAR_MEM_2G); + + pcix->powar3 = 0; + pcix->powar4 = 0; + pcix->piwar2 = 0; + pcix->piwar3 = 0; + + pci_set_region(hose->regions + 0, + CONFIG_SYS_PCI1_MEM_BUS, + CONFIG_SYS_PCI1_MEM_PHYS, + CONFIG_SYS_PCI1_MEM_SIZE, + PCI_REGION_MEM); + + pci_set_region(hose->regions + 1, + CONFIG_SYS_PCI1_IO_BUS, + CONFIG_SYS_PCI1_IO_PHYS, + CONFIG_SYS_PCI1_IO_SIZE, + PCI_REGION_IO); + + hose->region_count = 2; + + pci_register_hose(hose); + +#if defined(CONFIG_MPC8555CDS) || defined(CONFIG_MPC8541CDS) + /* + * This is a SW workaround for an apparent HW problem + * in the PCI controller on the MPC85555/41 CDS boards. + * The first config cycle must be to a valid, known + * device on the PCI bus in order to trick the PCI + * controller state machine into a known valid state. + * Without this, the first config cycle has the chance + * of hanging the controller permanently, just leaving + * it in a semi-working state, or leaving it working. + * + * Pick on the Tundra, Device 17, to get it right. + */ + { + u8 header_type; + + pci_hose_read_config_byte(hose, + PCI_BDF(0,BRIDGE_ID,0), + PCI_HEADER_TYPE, + &header_type); + } +#endif + + hose->last_busno = pci_hose_scan(hose); + +#ifdef CONFIG_MPC85XX_PCI2 + hose = &pci_hose[1]; + + hose->first_busno = pci_hose[0].last_busno + 1; + hose->last_busno = 0xff; + + pci_setup_indirect(hose, + (CONFIG_SYS_IMMR+0x9000), + (CONFIG_SYS_IMMR+0x9004)); + + dev = PCI_BDF(hose->first_busno, 0, 0); + pci_hose_read_config_word (hose, dev, PCI_COMMAND, ®16); + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16); + + /* + * Clear non-reserved bits in status register. + */ + pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff); + + pcix2->potar1 = (CONFIG_SYS_PCI2_MEM_BUS >> 12) & 0x000fffff; + pcix2->potear1 = 0x00000000; + pcix2->powbar1 = (CONFIG_SYS_PCI2_MEM_PHYS >> 12) & 0x000fffff; + pcix2->powbear1 = 0x00000000; + pcix2->powar1 = (POWAR_EN | POWAR_MEM_READ | + POWAR_MEM_WRITE | (__ilog2(CONFIG_SYS_PCI2_MEM_SIZE) - 1)); + + pcix2->potar2 = (CONFIG_SYS_PCI2_IO_BUS >> 12) & 0x000fffff; + pcix2->potear2 = 0x00000000; + pcix2->powbar2 = (CONFIG_SYS_PCI2_IO_PHYS >> 12) & 0x000fffff; + pcix2->powbear2 = 0x00000000; + pcix2->powar2 = (POWAR_EN | POWAR_IO_READ | + POWAR_IO_WRITE | (__ilog2(CONFIG_SYS_PCI2_IO_SIZE) - 1)); + + pcix2->pitar1 = 0x00000000; + pcix2->piwbar1 = 0x00000000; + pcix2->piwar1 = (PIWAR_EN | PIWAR_PF | PIWAR_LOCAL | + PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP | PIWAR_MEM_2G); + + pcix2->powar3 = 0; + pcix2->powar4 = 0; + pcix2->piwar2 = 0; + pcix2->piwar3 = 0; + + pci_set_region(hose->regions + 0, + CONFIG_SYS_PCI2_MEM_BUS, + CONFIG_SYS_PCI2_MEM_PHYS, + CONFIG_SYS_PCI2_MEM_SIZE, + PCI_REGION_MEM); + + pci_set_region(hose->regions + 1, + CONFIG_SYS_PCI2_IO_BUS, + CONFIG_SYS_PCI2_IO_PHYS, + CONFIG_SYS_PCI2_IO_SIZE, + PCI_REGION_IO); + + hose->region_count = 2; + + /* + * Hose scan. + */ + pci_register_hose(hose); + + hose->last_busno = pci_hose_scan(hose); +#endif +} +#endif /* !CONFIG_FSL_PCI_INIT */ diff --git a/arch/ppc/cpu/mpc85xx/qe_io.c b/arch/ppc/cpu/mpc85xx/qe_io.c new file mode 100644 index 0000000..72a29b7 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/qe_io.c @@ -0,0 +1,85 @@ +/* + * Copyright (C) 2006 Freescale Semiconductor, Inc. + * + * Dave Liu <daveliu@freescale.com> + * based on source code of Shlomi Gridish + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include "common.h" +#include "asm/errno.h" +#include "asm/io.h" +#include "asm/immap_85xx.h" + +#if defined(CONFIG_QE) +#define NUM_OF_PINS 32 +void qe_config_iopin(u8 port, u8 pin, int dir, int open_drain, int assign) +{ + u32 pin_2bit_mask; + u32 pin_2bit_dir; + u32 pin_2bit_assign; + u32 pin_1bit_mask; + u32 tmp_val; + volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + volatile par_io_t *par_io = (volatile par_io_t *) + &(gur->qe_par_io); + + /* Caculate pin location and 2bit mask and dir */ + pin_2bit_mask = (u32)(0x3 << (NUM_OF_PINS-(pin%(NUM_OF_PINS/2)+1)*2)); + pin_2bit_dir = (u32)(dir << (NUM_OF_PINS-(pin%(NUM_OF_PINS/2)+1)*2)); + + /* Setup the direction */ + tmp_val = (pin > (NUM_OF_PINS/2) - 1) ? \ + in_be32(&par_io[port].cpdir2) : + in_be32(&par_io[port].cpdir1); + + if (pin > (NUM_OF_PINS/2) -1) { + out_be32(&par_io[port].cpdir2, ~pin_2bit_mask & tmp_val); + out_be32(&par_io[port].cpdir2, pin_2bit_dir | tmp_val); + } else { + out_be32(&par_io[port].cpdir1, ~pin_2bit_mask & tmp_val); + out_be32(&par_io[port].cpdir1, pin_2bit_dir | tmp_val); + } + + /* Calculate pin location for 1bit mask */ + pin_1bit_mask = (u32)(1 << (NUM_OF_PINS - (pin+1))); + + /* Setup the open drain */ + tmp_val = in_be32(&par_io[port].cpodr); + if (open_drain) + out_be32(&par_io[port].cpodr, pin_1bit_mask | tmp_val); + else + out_be32(&par_io[port].cpodr, ~pin_1bit_mask & tmp_val); + + /* Setup the assignment */ + tmp_val = (pin > (NUM_OF_PINS/2) - 1) ? + in_be32(&par_io[port].cppar2): + in_be32(&par_io[port].cppar1); + pin_2bit_assign = (u32)(assign + << (NUM_OF_PINS - (pin%(NUM_OF_PINS/2)+1)*2)); + + /* Clear and set 2 bits mask */ + if (pin > (NUM_OF_PINS/2) - 1) { + out_be32(&par_io[port].cppar2, ~pin_2bit_mask & tmp_val); + out_be32(&par_io[port].cppar2, pin_2bit_assign | tmp_val); + } else { + out_be32(&par_io[port].cppar1, ~pin_2bit_mask & tmp_val); + out_be32(&par_io[port].cppar1, pin_2bit_assign | tmp_val); + } +} + +#endif /* CONFIG_QE */ diff --git a/arch/ppc/cpu/mpc85xx/release.S b/arch/ppc/cpu/mpc85xx/release.S new file mode 100644 index 0000000..0b5b9da --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/release.S @@ -0,0 +1,311 @@ +/* + * Copyright 2008-2010 Freescale Semiconductor, Inc. + * Kumar Gala <kumar.gala@freescale.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <mpc85xx.h> +#include <version.h> + +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +/* To boot secondary cpus, we need a place for them to start up. + * Normally, they start at 0xfffffffc, but that's usually the + * firmware, and we don't want to have to run the firmware again. + * Instead, the primary cpu will set the BPTR to point here to + * this page. We then set up the core, and head to + * start_secondary. Note that this means that the code below + * must never exceed 1023 instructions (the branch at the end + * would then be the 1024th). + */ + .globl __secondary_start_page + .align 12 +__secondary_start_page: +/* First do some preliminary setup */ + lis r3, HID0_EMCP@h /* enable machine check */ +#ifndef CONFIG_E500MC + ori r3,r3,HID0_TBEN@l /* enable Timebase */ +#endif +#ifdef CONFIG_PHYS_64BIT + ori r3,r3,HID0_ENMAS7@l /* enable MAS7 updates */ +#endif + mtspr SPRN_HID0,r3 + +#ifndef CONFIG_E500MC + li r3,(HID1_ASTME|HID1_ABE)@l /* Addr streaming & broadcast */ + mfspr r0,PVR + andi. r0,r0,0xff + cmpwi r0,0x50@l /* if we are rev 5.0 or greater set MBDD */ + blt 1f + /* Set MBDD bit also */ + ori r3, r3, HID1_MBDD@l +1: + mtspr SPRN_HID1,r3 +#endif + + /* Enable branch prediction */ + lis r3,BUCSR_ENABLE@h + ori r3,r3,BUCSR_ENABLE@l + mtspr SPRN_BUCSR,r3 + + /* Ensure TB is 0 */ + li r3,0 + mttbl r3 + mttbu r3 + + /* Enable/invalidate the I-Cache */ + lis r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@h + ori r2,r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@l + mtspr SPRN_L1CSR1,r2 +1: + mfspr r3,SPRN_L1CSR1 + and. r1,r3,r2 + bne 1b + + lis r3,(L1CSR1_CPE|L1CSR1_ICE)@h + ori r3,r3,(L1CSR1_CPE|L1CSR1_ICE)@l + mtspr SPRN_L1CSR1,r3 + isync +2: + mfspr r3,SPRN_L1CSR1 + andi. r1,r3,L1CSR1_ICE@l + beq 2b + + /* Enable/invalidate the D-Cache */ + lis r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@h + ori r2,r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@l + mtspr SPRN_L1CSR0,r2 +1: + mfspr r3,SPRN_L1CSR0 + and. r1,r3,r2 + bne 1b + + lis r3,(L1CSR0_CPE|L1CSR0_DCE)@h + ori r3,r3,(L1CSR0_CPE|L1CSR0_DCE)@l + mtspr SPRN_L1CSR0,r3 + isync +2: + mfspr r3,SPRN_L1CSR0 + andi. r1,r3,L1CSR0_DCE@l + beq 2b + +#define toreset(x) (x - __secondary_start_page + 0xfffff000) + + /* get our PIR to figure out our table entry */ + lis r3,toreset(__spin_table)@h + ori r3,r3,toreset(__spin_table)@l + + /* r10 has the base address for the entry */ + mfspr r0,SPRN_PIR +#ifdef CONFIG_E500MC + rlwinm r4,r0,27,27,31 +#else + mr r4,r0 +#endif + slwi r8,r4,5 + add r10,r3,r8 + +#if defined(CONFIG_E500MC) && defined(CONFIG_SYS_CACHE_STASHING) + /* set stash id to (coreID) * 2 + 32 + L1 CT (0) */ + slwi r8,r4,1 + addi r8,r8,32 + mtspr L1CSR2,r8 +#endif + +#ifdef CONFIG_BACKSIDE_L2_CACHE + /* Enable/invalidate the L2 cache */ + msync + lis r2,(L2CSR0_L2FI|L2CSR0_L2LFC)@h + ori r2,r2,(L2CSR0_L2FI|L2CSR0_L2LFC)@l + mtspr SPRN_L2CSR0,r2 +1: + mfspr r3,SPRN_L2CSR0 + and. r1,r3,r2 + bne 1b + +#ifdef CONFIG_SYS_CACHE_STASHING + /* set stash id to (coreID) * 2 + 32 + L2 (1) */ + addi r3,r8,1 + mtspr SPRN_L2CSR1,r3 +#endif + + lis r3,CONFIG_SYS_INIT_L2CSR0@h + ori r3,r3,CONFIG_SYS_INIT_L2CSR0@l + mtspr SPRN_L2CSR0,r3 + isync +2: + mfspr r3,SPRN_L2CSR0 + andis. r1,r3,L2CSR0_L2E@h + beq 2b +#endif + +#define EPAPR_MAGIC (0x45504150) +#define ENTRY_ADDR_UPPER 0 +#define ENTRY_ADDR_LOWER 4 +#define ENTRY_R3_UPPER 8 +#define ENTRY_R3_LOWER 12 +#define ENTRY_RESV 16 +#define ENTRY_PIR 20 +#define ENTRY_R6_UPPER 24 +#define ENTRY_R6_LOWER 28 +#define ENTRY_SIZE 32 + + /* setup the entry */ + li r3,0 + li r8,1 + stw r0,ENTRY_PIR(r10) + stw r3,ENTRY_ADDR_UPPER(r10) + stw r8,ENTRY_ADDR_LOWER(r10) + stw r3,ENTRY_R3_UPPER(r10) + stw r4,ENTRY_R3_LOWER(r10) + stw r3,ENTRY_R6_UPPER(r10) + stw r3,ENTRY_R6_LOWER(r10) + + /* load r13 with the address of the 'bootpg' in SDRAM */ + lis r13,toreset(__bootpg_addr)@h + ori r13,r13,toreset(__bootpg_addr)@l + lwz r13,0(r13) + + /* setup mapping for AS = 1, and jump there */ + lis r11,(MAS0_TLBSEL(1)|MAS0_ESEL(1))@h + mtspr SPRN_MAS0,r11 + lis r11,(MAS1_VALID|MAS1_IPROT)@h + ori r11,r11,(MAS1_TS|MAS1_TSIZE(BOOKE_PAGESZ_4K))@l + mtspr SPRN_MAS1,r11 + oris r11,r13,(MAS2_I|MAS2_G)@h + ori r11,r13,(MAS2_I|MAS2_G)@l + mtspr SPRN_MAS2,r11 + oris r11,r13,(MAS3_SX|MAS3_SW|MAS3_SR)@h + ori r11,r13,(MAS3_SX|MAS3_SW|MAS3_SR)@l + mtspr SPRN_MAS3,r11 + tlbwe + + bl 1f +1: mflr r11 + /* + * OR in 0xfff to create a mask of the bootpg SDRAM address. We use + * this mask to fixup the cpu spin table and the address that we want + * to jump to, eg change them from 0xfffffxxx to 0x7ffffxxx if the + * bootpg is at 0x7ffff000 in SDRAM. + */ + ori r13,r13,0xfff + and r11, r11, r13 + and r10, r10, r13 + + addi r11,r11,(2f-1b) + mfmsr r13 + ori r12,r13,MSR_IS|MSR_DS@l + + mtspr SPRN_SRR0,r11 + mtspr SPRN_SRR1,r12 + rfi + + /* spin waiting for addr */ +2: + lwz r4,ENTRY_ADDR_LOWER(r10) + andi. r11,r4,1 + bne 2b + isync + + /* setup IVORs to match fixed offsets */ +#include "fixed_ivor.S" + + /* get the upper bits of the addr */ + lwz r11,ENTRY_ADDR_UPPER(r10) + + /* setup branch addr */ + mtspr SPRN_SRR0,r4 + + /* mark the entry as released */ + li r8,3 + stw r8,ENTRY_ADDR_LOWER(r10) + + /* mask by ~64M to setup our tlb we will jump to */ + rlwinm r12,r4,0,0,5 + + /* setup r3, r4, r5, r6, r7, r8, r9 */ + lwz r3,ENTRY_R3_LOWER(r10) + li r4,0 + li r5,0 + lwz r6,ENTRY_R6_LOWER(r10) + lis r7,(64*1024*1024)@h + li r8,0 + li r9,0 + + /* load up the pir */ + lwz r0,ENTRY_PIR(r10) + mtspr SPRN_PIR,r0 + mfspr r0,SPRN_PIR + stw r0,ENTRY_PIR(r10) + + mtspr IVPR,r12 +/* + * Coming here, we know the cpu has one TLB mapping in TLB1[0] + * which maps 0xfffff000-0xffffffff one-to-one. We set up a + * second mapping that maps addr 1:1 for 64M, and then we jump to + * addr + */ + lis r10,(MAS0_TLBSEL(1)|MAS0_ESEL(0))@h + mtspr SPRN_MAS0,r10 + lis r10,(MAS1_VALID|MAS1_IPROT)@h + ori r10,r10,(MAS1_TSIZE(BOOKE_PAGESZ_64M))@l + mtspr SPRN_MAS1,r10 + /* WIMGE = 0b00000 for now */ + mtspr SPRN_MAS2,r12 + ori r12,r12,(MAS3_SX|MAS3_SW|MAS3_SR) + mtspr SPRN_MAS3,r12 +#ifdef CONFIG_ENABLE_36BIT_PHYS + mtspr SPRN_MAS7,r11 +#endif + tlbwe + +/* Now we have another mapping for this page, so we jump to that + * mapping + */ + mtspr SPRN_SRR1,r13 + rfi + + /* + * Allocate some space for the SDRAM address of the bootpg. + * This variable has to be in the boot page so that it can + * be accessed by secondary cores when they come out of reset. + */ + .globl __bootpg_addr +__bootpg_addr: + .long 0 + + .align L1_CACHE_SHIFT + .globl __spin_table +__spin_table: + .space CONFIG_MAX_CPUS*ENTRY_SIZE + + /* Fill in the empty space. The actual reset vector is + * the last word of the page */ +__secondary_start_code_end: + .space 4092 - (__secondary_start_code_end - __secondary_start_page) +__secondary_reset_vector: + b __secondary_start_page diff --git a/arch/ppc/cpu/mpc85xx/resetvec.S b/arch/ppc/cpu/mpc85xx/resetvec.S new file mode 100644 index 0000000..29555d4 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/resetvec.S @@ -0,0 +1,2 @@ + .section .resetvec,"ax" + b _start_e500 diff --git a/arch/ppc/cpu/mpc85xx/serial_scc.c b/arch/ppc/cpu/mpc85xx/serial_scc.c new file mode 100644 index 0000000..2dab212 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/serial_scc.c @@ -0,0 +1,268 @@ +/* + * (C) Copyright 2003 Motorola Inc. + * Xianghua Xiao (X.Xiao@motorola.com) + * Modified based on 8260 for 8560. + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Hacked for MPC8260 by Murray.Jensen@cmst.csiro.au, 19-Oct-00. + */ + +/* + * Minimal serial functions needed to use one of the SCC ports + * as serial console interface. + */ + +#include <common.h> +#include <asm/cpm_85xx.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_CONS_ON_SCC) + +#if CONFIG_CONS_INDEX == 1 /* Console on SCC1 */ + +#define SCC_INDEX 0 +#define PROFF_SCC PROFF_SCC1 +#define CMXSCR_MASK (CMXSCR_GR1|CMXSCR_SC1|\ + CMXSCR_RS1CS_MSK|CMXSCR_TS1CS_MSK) +#define CMXSCR_VALUE (CMXSCR_RS1CS_BRG1|CMXSCR_TS1CS_BRG1) +#define CPM_CR_SCC_PAGE CPM_CR_SCC1_PAGE +#define CPM_CR_SCC_SBLOCK CPM_CR_SCC1_SBLOCK + +#elif CONFIG_CONS_INDEX == 2 /* Console on SCC2 */ + +#define SCC_INDEX 1 +#define PROFF_SCC PROFF_SCC2 +#define CMXSCR_MASK (CMXSCR_GR2|CMXSCR_SC2|\ + CMXSCR_RS2CS_MSK|CMXSCR_TS2CS_MSK) +#define CMXSCR_VALUE (CMXSCR_RS2CS_BRG2|CMXSCR_TS2CS_BRG2) +#define CPM_CR_SCC_PAGE CPM_CR_SCC2_PAGE +#define CPM_CR_SCC_SBLOCK CPM_CR_SCC2_SBLOCK + +#elif CONFIG_CONS_INDEX == 3 /* Console on SCC3 */ + +#define SCC_INDEX 2 +#define PROFF_SCC PROFF_SCC3 +#define CMXSCR_MASK (CMXSCR_GR3|CMXSCR_SC3|\ + CMXSCR_RS3CS_MSK|CMXSCR_TS3CS_MSK) +#define CMXSCR_VALUE (CMXSCR_RS3CS_BRG3|CMXSCR_TS3CS_BRG3) +#define CPM_CR_SCC_PAGE CPM_CR_SCC3_PAGE +#define CPM_CR_SCC_SBLOCK CPM_CR_SCC3_SBLOCK + +#elif CONFIG_CONS_INDEX == 4 /* Console on SCC4 */ + +#define SCC_INDEX 3 +#define PROFF_SCC PROFF_SCC4 +#define CMXSCR_MASK (CMXSCR_GR4|CMXSCR_SC4|\ + CMXSCR_RS4CS_MSK|CMXSCR_TS4CS_MSK) +#define CMXSCR_VALUE (CMXSCR_RS4CS_BRG4|CMXSCR_TS4CS_BRG4) +#define CPM_CR_SCC_PAGE CPM_CR_SCC4_PAGE +#define CPM_CR_SCC_SBLOCK CPM_CR_SCC4_SBLOCK + +#else + +#error "console not correctly defined" + +#endif + +int serial_init (void) +{ + volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR; + volatile ccsr_cpm_scc_t *sp; + volatile scc_uart_t *up; + volatile cbd_t *tbdf, *rbdf; + volatile ccsr_cpm_cp_t *cp = &(cpm->im_cpm_cp); + uint dpaddr; + + /* initialize pointers to SCC */ + + sp = (ccsr_cpm_scc_t *) &(cpm->im_cpm_scc[SCC_INDEX]); + up = (scc_uart_t *)&(cpm->im_dprambase[PROFF_SCC]); + + /* Disable transmitter/receiver. + */ + sp->gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT); + + /* put the SCC channel into NMSI (non multiplexd serial interface) + * mode and wire the selected SCC Tx and Rx clocks to BRGx (15-15). + */ + cpm->im_cpm_mux.cmxscr = \ + (cpm->im_cpm_mux.cmxscr&~CMXSCR_MASK)|CMXSCR_VALUE; + + /* Set up the baud rate generator. + */ + serial_setbrg (); + + /* Allocate space for two buffer descriptors in the DP ram. + * damm: allocating space after the two buffers for rx/tx data + */ + + dpaddr = m8560_cpm_dpalloc((2 * sizeof (cbd_t)) + 2, 16); + + /* Set the physical address of the host memory buffers in + * the buffer descriptors. + */ + rbdf = (cbd_t *)&(cpm->im_dprambase[dpaddr]); + rbdf->cbd_bufaddr = (uint) (rbdf+2); + rbdf->cbd_sc = BD_SC_EMPTY | BD_SC_WRAP; + tbdf = rbdf + 1; + tbdf->cbd_bufaddr = ((uint) (rbdf+2)) + 1; + tbdf->cbd_sc = BD_SC_WRAP; + + /* Set up the uart parameters in the parameter ram. + */ + up->scc_genscc.scc_rbase = dpaddr; + up->scc_genscc.scc_tbase = dpaddr+sizeof(cbd_t); + up->scc_genscc.scc_rfcr = CPMFCR_EB; + up->scc_genscc.scc_tfcr = CPMFCR_EB; + up->scc_genscc.scc_mrblr = 1; + up->scc_maxidl = 0; + up->scc_brkcr = 1; + up->scc_parec = 0; + up->scc_frmec = 0; + up->scc_nosec = 0; + up->scc_brkec = 0; + up->scc_uaddr1 = 0; + up->scc_uaddr2 = 0; + up->scc_toseq = 0; + up->scc_char1 = up->scc_char2 = up->scc_char3 = up->scc_char4 = 0x8000; + up->scc_char5 = up->scc_char6 = up->scc_char7 = up->scc_char8 = 0x8000; + up->scc_rccm = 0xc0ff; + + /* Mask all interrupts and remove anything pending. + */ + sp->sccm = 0; + sp->scce = 0xffff; + + /* Set 8 bit FIFO, 16 bit oversampling and UART mode. + */ + sp->gsmrh = SCC_GSMRH_RFW; /* 8 bit FIFO */ + sp->gsmrl = \ + SCC_GSMRL_TDCR_16 | SCC_GSMRL_RDCR_16 | SCC_GSMRL_MODE_UART; + + /* Set CTS no flow control, 1 stop bit, 8 bit character length, + * normal async UART mode, no parity + */ + sp->psmr = SCU_PSMR_CL; + + /* execute the "Init Rx and Tx params" CP command. + */ + + while (cp->cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + + cp->cpcr = mk_cr_cmd(CPM_CR_SCC_PAGE, CPM_CR_SCC_SBLOCK, + 0, CPM_CR_INIT_TRX) | CPM_CR_FLG; + + while (cp->cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + + /* Enable transmitter/receiver. + */ + sp->gsmrl |= SCC_GSMRL_ENR | SCC_GSMRL_ENT; + + return (0); +} + +void +serial_setbrg (void) +{ +#if defined(CONFIG_CONS_USE_EXTC) + m8560_cpm_extcbrg(SCC_INDEX, gd->baudrate, + CONFIG_CONS_EXTC_RATE, CONFIG_CONS_EXTC_PINSEL); +#else + m8560_cpm_setbrg(SCC_INDEX, gd->baudrate); +#endif +} + +void +serial_putc(const char c) +{ + volatile scc_uart_t *up; + volatile cbd_t *tbdf; + volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR; + + if (c == '\n') + serial_putc ('\r'); + + up = (scc_uart_t *)&(cpm->im_dprambase[PROFF_SCC]); + tbdf = (cbd_t *)&(cpm->im_dprambase[up->scc_genscc.scc_tbase]); + + /* Wait for last character to go. + */ + while (tbdf->cbd_sc & BD_SC_READY) + ; + + /* Load the character into the transmit buffer. + */ + *(volatile char *)tbdf->cbd_bufaddr = c; + tbdf->cbd_datlen = 1; + tbdf->cbd_sc |= BD_SC_READY; +} + +void +serial_puts (const char *s) +{ + while (*s) { + serial_putc (*s++); + } +} + +int +serial_getc(void) +{ + volatile cbd_t *rbdf; + volatile scc_uart_t *up; + volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR; + unsigned char c; + + up = (scc_uart_t *)&(cpm->im_dprambase[PROFF_SCC]); + rbdf = (cbd_t *)&(cpm->im_dprambase[up->scc_genscc.scc_rbase]); + + /* Wait for character to show up. + */ + while (rbdf->cbd_sc & BD_SC_EMPTY) + ; + + /* Grab the char and clear the buffer again. + */ + c = *(volatile unsigned char *)rbdf->cbd_bufaddr; + rbdf->cbd_sc |= BD_SC_EMPTY; + + return (c); +} + +int +serial_tstc() +{ + volatile cbd_t *rbdf; + volatile scc_uart_t *up; + volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR; + + up = (scc_uart_t *)&(cpm->im_dprambase[PROFF_SCC]); + rbdf = (cbd_t *)&(cpm->im_dprambase[up->scc_genscc.scc_rbase]); + + return ((rbdf->cbd_sc & BD_SC_EMPTY) == 0); +} + +#endif /* CONFIG_CONS_ON_SCC */ diff --git a/arch/ppc/cpu/mpc85xx/speed.c b/arch/ppc/cpu/mpc85xx/speed.c new file mode 100644 index 0000000..268edbc --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/speed.c @@ -0,0 +1,283 @@ +/* + * Copyright 2004, 2007-2009 Freescale Semiconductor, Inc. + * + * (C) Copyright 2003 Motorola Inc. + * Xianghua Xiao, (X.Xiao@motorola.com) + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <ppc_asm.tmpl> +#include <asm/processor.h> +#include <asm/io.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* --------------------------------------------------------------- */ + +void get_sys_info (sys_info_t * sysInfo) +{ + volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); +#ifdef CONFIG_FSL_CORENET + volatile ccsr_clk_t *clk = (void *)(CONFIG_SYS_FSL_CORENET_CLK_ADDR); + + const u8 core_cplx_PLL[16] = { + [ 0] = 0, /* CC1 PPL / 1 */ + [ 1] = 0, /* CC1 PPL / 2 */ + [ 2] = 0, /* CC1 PPL / 4 */ + [ 4] = 1, /* CC2 PPL / 1 */ + [ 5] = 1, /* CC2 PPL / 2 */ + [ 6] = 1, /* CC2 PPL / 4 */ + [ 8] = 2, /* CC3 PPL / 1 */ + [ 9] = 2, /* CC3 PPL / 2 */ + [10] = 2, /* CC3 PPL / 4 */ + [12] = 3, /* CC4 PPL / 1 */ + [13] = 3, /* CC4 PPL / 2 */ + [14] = 3, /* CC4 PPL / 4 */ + }; + + const u8 core_cplx_PLL_div[16] = { + [ 0] = 1, /* CC1 PPL / 1 */ + [ 1] = 2, /* CC1 PPL / 2 */ + [ 2] = 4, /* CC1 PPL / 4 */ + [ 4] = 1, /* CC2 PPL / 1 */ + [ 5] = 2, /* CC2 PPL / 2 */ + [ 6] = 4, /* CC2 PPL / 4 */ + [ 8] = 1, /* CC3 PPL / 1 */ + [ 9] = 2, /* CC3 PPL / 2 */ + [10] = 4, /* CC3 PPL / 4 */ + [12] = 1, /* CC4 PPL / 1 */ + [13] = 2, /* CC4 PPL / 2 */ + [14] = 4, /* CC4 PPL / 4 */ + }; + uint lcrr_div, i, freqCC_PLL[4], rcw_tmp; + unsigned long sysclk = CONFIG_SYS_CLK_FREQ; + + sysInfo->freqSystemBus = sysclk; + sysInfo->freqDDRBus = sysclk; + freqCC_PLL[0] = sysclk; + freqCC_PLL[1] = sysclk; + freqCC_PLL[2] = sysclk; + freqCC_PLL[3] = sysclk; + + sysInfo->freqSystemBus *= (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f; + sysInfo->freqDDRBus *= ((in_be32(&gur->rcwsr[0]) >> 17) & 0x1f); + freqCC_PLL[0] *= (in_be32(&clk->pllc1gsr) >> 1) & 0x3f; + freqCC_PLL[1] *= (in_be32(&clk->pllc2gsr) >> 1) & 0x3f; + freqCC_PLL[2] *= (in_be32(&clk->pllc3gsr) >> 1) & 0x3f; + freqCC_PLL[3] *= (in_be32(&clk->pllc4gsr) >> 1) & 0x3f; + + rcw_tmp = in_be32(&gur->rcwsr[3]); + for (i = 0; i < cpu_numcores(); i++) { + u32 c_pll_sel = (in_be32(&clk->clkc0csr + i*8) >> 27) & 0xf; + u32 cplx_pll = core_cplx_PLL[c_pll_sel]; + + sysInfo->freqProcessor[i] = + freqCC_PLL[cplx_pll] / core_cplx_PLL_div[c_pll_sel]; + } + +#define PME_CLK_SEL 0x80000000 +#define FM1_CLK_SEL 0x40000000 +#define FM2_CLK_SEL 0x20000000 + rcw_tmp = in_be32(&gur->rcwsr[7]); + +#ifdef CONFIG_SYS_DPAA_PME + if (rcw_tmp & PME_CLK_SEL) + sysInfo->freqPME = freqCC_PLL[2] / 2; + else + sysInfo->freqPME = sysInfo->freqSystemBus / 2; +#endif + +#ifdef CONFIG_SYS_DPAA_FMAN + if (rcw_tmp & FM1_CLK_SEL) + sysInfo->freqFMan[0] = freqCC_PLL[2] / 2; + else + sysInfo->freqFMan[0] = sysInfo->freqSystemBus / 2; +#if (CONFIG_SYS_NUM_FMAN) == 2 + if (rcw_tmp & FM2_CLK_SEL) + sysInfo->freqFMan[1] = freqCC_PLL[2] / 2; + else + sysInfo->freqFMan[1] = sysInfo->freqSystemBus / 2; +#endif +#endif + +#else + uint plat_ratio,e500_ratio,half_freqSystemBus; + uint lcrr_div; + int i; +#ifdef CONFIG_QE + u32 qe_ratio; +#endif + + plat_ratio = (gur->porpllsr) & 0x0000003e; + plat_ratio >>= 1; + sysInfo->freqSystemBus = plat_ratio * CONFIG_SYS_CLK_FREQ; + + /* Divide before multiply to avoid integer + * overflow for processor speeds above 2GHz */ + half_freqSystemBus = sysInfo->freqSystemBus/2; + for (i = 0; i < cpu_numcores(); i++) { + e500_ratio = ((gur->porpllsr) >> (i * 8 + 16)) & 0x3f; + sysInfo->freqProcessor[i] = e500_ratio * half_freqSystemBus; + } + + /* Note: freqDDRBus is the MCLK frequency, not the data rate. */ + sysInfo->freqDDRBus = sysInfo->freqSystemBus; + +#ifdef CONFIG_DDR_CLK_FREQ + { + u32 ddr_ratio = ((gur->porpllsr) & MPC85xx_PORPLLSR_DDR_RATIO) + >> MPC85xx_PORPLLSR_DDR_RATIO_SHIFT; + if (ddr_ratio != 0x7) + sysInfo->freqDDRBus = ddr_ratio * CONFIG_DDR_CLK_FREQ; + } +#endif +#endif + +#ifdef CONFIG_QE + qe_ratio = ((gur->porpllsr) & MPC85xx_PORPLLSR_QE_RATIO) + >> MPC85xx_PORPLLSR_QE_RATIO_SHIFT; + sysInfo->freqQE = qe_ratio * CONFIG_SYS_CLK_FREQ; +#endif + +#if defined(CONFIG_SYS_LBC_LCRR) + /* We will program LCRR to this value later */ + lcrr_div = CONFIG_SYS_LBC_LCRR & LCRR_CLKDIV; +#else + { + volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR); + lcrr_div = in_be32(&lbc->lcrr) & LCRR_CLKDIV; + } +#endif + if (lcrr_div == 2 || lcrr_div == 4 || lcrr_div == 8) { +#if defined(CONFIG_FSL_CORENET) + /* If this is corenet based SoC, bit-representation + * for four times the clock divider values. + */ + lcrr_div *= 4; +#elif !defined(CONFIG_MPC8540) && !defined(CONFIG_MPC8541) && \ + !defined(CONFIG_MPC8555) && !defined(CONFIG_MPC8560) + /* + * Yes, the entire PQ38 family use the same + * bit-representation for twice the clock divider values. + */ + lcrr_div *= 2; +#endif + sysInfo->freqLocalBus = sysInfo->freqSystemBus / lcrr_div; + } else { + /* In case anyone cares what the unknown value is */ + sysInfo->freqLocalBus = lcrr_div; + } +} + + +int get_clocks (void) +{ + sys_info_t sys_info; +#ifdef CONFIG_MPC8544 + volatile ccsr_gur_t *gur = (void *) CONFIG_SYS_MPC85xx_GUTS_ADDR; +#endif +#if defined(CONFIG_CPM2) + volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR; + uint sccr, dfbrg; + + /* set VCO = 4 * BRG */ + cpm->im_cpm_intctl.sccr &= 0xfffffffc; + sccr = cpm->im_cpm_intctl.sccr; + dfbrg = (sccr & SCCR_DFBRG_MSK) >> SCCR_DFBRG_SHIFT; +#endif + get_sys_info (&sys_info); + gd->cpu_clk = sys_info.freqProcessor[0]; + gd->bus_clk = sys_info.freqSystemBus; + gd->mem_clk = sys_info.freqDDRBus; + gd->lbc_clk = sys_info.freqLocalBus; + +#ifdef CONFIG_QE + gd->qe_clk = sys_info.freqQE; + gd->brg_clk = gd->qe_clk / 2; +#endif + /* + * The base clock for I2C depends on the actual SOC. Unfortunately, + * there is no pattern that can be used to determine the frequency, so + * the only choice is to look up the actual SOC number and use the value + * for that SOC. This information is taken from application note + * AN2919. + */ +#if defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \ + defined(CONFIG_MPC8560) || defined(CONFIG_MPC8555) + gd->i2c1_clk = sys_info.freqSystemBus; +#elif defined(CONFIG_MPC8544) + /* + * On the 8544, the I2C clock is the same as the SEC clock. This can be + * either CCB/2 or CCB/3, depending on the value of cfg_sec_freq. See + * 4.4.3.3 of the 8544 RM. Note that this might actually work for all + * 85xx, but only the 8544 has cfg_sec_freq, so it's unknown if the + * PORDEVSR2_SEC_CFG bit is 0 on all 85xx boards that are not an 8544. + */ + if (gur->pordevsr2 & MPC85xx_PORDEVSR2_SEC_CFG) + gd->i2c1_clk = sys_info.freqSystemBus / 3; + else + gd->i2c1_clk = sys_info.freqSystemBus / 2; +#else + /* Most 85xx SOCs use CCB/2, so this is the default behavior. */ + gd->i2c1_clk = sys_info.freqSystemBus / 2; +#endif + gd->i2c2_clk = gd->i2c1_clk; + +#if defined(CONFIG_FSL_ESDHC) +#ifdef CONFIG_MPC8569 + gd->sdhc_clk = gd->bus_clk; +#else + gd->sdhc_clk = gd->bus_clk / 2; +#endif +#endif /* defined(CONFIG_FSL_ESDHC) */ + +#if defined(CONFIG_CPM2) + gd->vco_out = 2*sys_info.freqSystemBus; + gd->cpm_clk = gd->vco_out / 2; + gd->scc_clk = gd->vco_out / 4; + gd->brg_clk = gd->vco_out / (1 << (2 * (dfbrg + 1))); +#endif + + if(gd->cpu_clk != 0) return (0); + else return (1); +} + + +/******************************************** + * get_bus_freq + * return system bus freq in Hz + *********************************************/ +ulong get_bus_freq (ulong dummy) +{ + return gd->bus_clk; +} + +/******************************************** + * get_ddr_freq + * return ddr bus freq in Hz + *********************************************/ +ulong get_ddr_freq (ulong dummy) +{ + return gd->mem_clk; +} diff --git a/arch/ppc/cpu/mpc85xx/start.S b/arch/ppc/cpu/mpc85xx/start.S new file mode 100644 index 0000000..b3cb56a --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/start.S @@ -0,0 +1,1195 @@ +/* + * Copyright 2004, 2007-2010 Freescale Semiconductor, Inc. + * Copyright (C) 2003 Motorola,Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* U-Boot Startup Code for Motorola 85xx PowerPC based Embedded Boards + * + * The processor starts at 0xfffffffc and the code is first executed in the + * last 4K page(0xfffff000-0xffffffff) in flash/rom. + * + */ + +#include <config.h> +#include <mpc85xx.h> +#include <timestamp.h> +#include <version.h> + +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +#undef MSR_KERNEL +#define MSR_KERNEL ( MSR_ME ) /* Machine Check */ + +/* + * Set up GOT: Global Offset Table + * + * Use r12 to access the GOT + */ + START_GOT + GOT_ENTRY(_GOT2_TABLE_) + GOT_ENTRY(_FIXUP_TABLE_) + +#ifndef CONFIG_NAND_SPL + GOT_ENTRY(_start) + GOT_ENTRY(_start_of_vectors) + GOT_ENTRY(_end_of_vectors) + GOT_ENTRY(transfer_to_handler) +#endif + + GOT_ENTRY(__init_end) + GOT_ENTRY(_end) + GOT_ENTRY(__bss_start) + END_GOT + +/* + * e500 Startup -- after reset only the last 4KB of the effective + * address space is mapped in the MMU L2 TLB1 Entry0. The .bootpg + * section is located at THIS LAST page and basically does three + * things: clear some registers, set up exception tables and + * add more TLB entries for 'larger spaces'(e.g. the boot rom) to + * continue the boot procedure. + + * Once the boot rom is mapped by TLB entries we can proceed + * with normal startup. + * + */ + + .section .bootpg,"ax" + .globl _start_e500 + +_start_e500: + +/* clear registers/arrays not reset by hardware */ + + /* L1 */ + li r0,2 + mtspr L1CSR0,r0 /* invalidate d-cache */ + mtspr L1CSR1,r0 /* invalidate i-cache */ + + mfspr r1,DBSR + mtspr DBSR,r1 /* Clear all valid bits */ + + /* + * Enable L1 Caches early + * + */ + +#if defined(CONFIG_E500MC) && defined(CONFIG_SYS_CACHE_STASHING) + /* set stash id to (coreID) * 2 + 32 + L1 CT (0) */ + li r2,(32 + 0) + mtspr L1CSR2,r2 +#endif + + /* Enable/invalidate the I-Cache */ + lis r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@h + ori r2,r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@l + mtspr SPRN_L1CSR1,r2 +1: + mfspr r3,SPRN_L1CSR1 + and. r1,r3,r2 + bne 1b + + lis r3,(L1CSR1_CPE|L1CSR1_ICE)@h + ori r3,r3,(L1CSR1_CPE|L1CSR1_ICE)@l + mtspr SPRN_L1CSR1,r3 + isync +2: + mfspr r3,SPRN_L1CSR1 + andi. r1,r3,L1CSR1_ICE@l + beq 2b + + /* Enable/invalidate the D-Cache */ + lis r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@h + ori r2,r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@l + mtspr SPRN_L1CSR0,r2 +1: + mfspr r3,SPRN_L1CSR0 + and. r1,r3,r2 + bne 1b + + lis r3,(L1CSR0_CPE|L1CSR0_DCE)@h + ori r3,r3,(L1CSR0_CPE|L1CSR0_DCE)@l + mtspr SPRN_L1CSR0,r3 + isync +2: + mfspr r3,SPRN_L1CSR0 + andi. r1,r3,L1CSR0_DCE@l + beq 2b + + /* Setup interrupt vectors */ + lis r1,TEXT_BASE@h + mtspr IVPR,r1 + + li r1,0x0100 + mtspr IVOR0,r1 /* 0: Critical input */ + li r1,0x0200 + mtspr IVOR1,r1 /* 1: Machine check */ + li r1,0x0300 + mtspr IVOR2,r1 /* 2: Data storage */ + li r1,0x0400 + mtspr IVOR3,r1 /* 3: Instruction storage */ + li r1,0x0500 + mtspr IVOR4,r1 /* 4: External interrupt */ + li r1,0x0600 + mtspr IVOR5,r1 /* 5: Alignment */ + li r1,0x0700 + mtspr IVOR6,r1 /* 6: Program check */ + li r1,0x0800 + mtspr IVOR7,r1 /* 7: floating point unavailable */ + li r1,0x0900 + mtspr IVOR8,r1 /* 8: System call */ + /* 9: Auxiliary processor unavailable(unsupported) */ + li r1,0x0a00 + mtspr IVOR10,r1 /* 10: Decrementer */ + li r1,0x0b00 + mtspr IVOR11,r1 /* 11: Interval timer */ + li r1,0x0c00 + mtspr IVOR12,r1 /* 12: Watchdog timer */ + li r1,0x0d00 + mtspr IVOR13,r1 /* 13: Data TLB error */ + li r1,0x0e00 + mtspr IVOR14,r1 /* 14: Instruction TLB error */ + li r1,0x0f00 + mtspr IVOR15,r1 /* 15: Debug */ + + /* Clear and set up some registers. */ + li r0,0x0000 + lis r1,0xffff + mtspr DEC,r0 /* prevent dec exceptions */ + mttbl r0 /* prevent fit & wdt exceptions */ + mttbu r0 + mtspr TSR,r1 /* clear all timer exception status */ + mtspr TCR,r0 /* disable all */ + mtspr ESR,r0 /* clear exception syndrome register */ + mtspr MCSR,r0 /* machine check syndrome register */ + mtxer r0 /* clear integer exception register */ + +#ifdef CONFIG_SYS_BOOK3E_HV + mtspr MAS8,r0 /* make sure MAS8 is clear */ +#endif + + /* Enable Time Base and Select Time Base Clock */ + lis r0,HID0_EMCP@h /* Enable machine check */ +#if defined(CONFIG_ENABLE_36BIT_PHYS) + ori r0,r0,HID0_ENMAS7@l /* Enable MAS7 */ +#endif +#ifndef CONFIG_E500MC + ori r0,r0,HID0_TBEN@l /* Enable Timebase */ +#endif + mtspr HID0,r0 + +#ifndef CONFIG_E500MC + li r0,(HID1_ASTME|HID1_ABE)@l /* Addr streaming & broadcast */ + mfspr r3,PVR + andi. r3,r3, 0xff + cmpwi r3,0x50@l /* if we are rev 5.0 or greater set MBDD */ + blt 1f + /* Set MBDD bit also */ + ori r0, r0, HID1_MBDD@l +1: + mtspr HID1,r0 +#endif + + /* Enable Branch Prediction */ +#if defined(CONFIG_BTB) + lis r0,BUCSR_ENABLE@h + ori r0,r0,BUCSR_ENABLE@l + mtspr SPRN_BUCSR,r0 +#endif + +#if defined(CONFIG_SYS_INIT_DBCR) + lis r1,0xffff + ori r1,r1,0xffff + mtspr DBSR,r1 /* Clear all status bits */ + lis r0,CONFIG_SYS_INIT_DBCR@h /* DBCR0[IDM] must be set */ + ori r0,r0,CONFIG_SYS_INIT_DBCR@l + mtspr DBCR0,r0 +#endif + +#ifdef CONFIG_MPC8569 +#define CONFIG_SYS_LBC_ADDR (CONFIG_SYS_CCSRBAR_DEFAULT + 0x5000) +#define CONFIG_SYS_LBCR_ADDR (CONFIG_SYS_LBC_ADDR + 0xd0) + + /* MPC8569 Rev.0 silcon needs to set bit 13 of LBCR to allow elBC to + * use address space which is more than 12bits, and it must be done in + * the 4K boot page. So we set this bit here. + */ + + /* create a temp mapping TLB0[0] for LBCR */ + lis r6,FSL_BOOKE_MAS0(0, 0, 0)@h + ori r6,r6,FSL_BOOKE_MAS0(0, 0, 0)@l + + lis r7,FSL_BOOKE_MAS1(1, 0, 0, 0, BOOKE_PAGESZ_4K)@h + ori r7,r7,FSL_BOOKE_MAS1(1, 0, 0, 0, BOOKE_PAGESZ_4K)@l + + lis r8,FSL_BOOKE_MAS2(CONFIG_SYS_LBC_ADDR, MAS2_I|MAS2_G)@h + ori r8,r8,FSL_BOOKE_MAS2(CONFIG_SYS_LBC_ADDR, MAS2_I|MAS2_G)@l + + lis r9,FSL_BOOKE_MAS3(CONFIG_SYS_LBC_ADDR, 0, + (MAS3_SX|MAS3_SW|MAS3_SR))@h + ori r9,r9,FSL_BOOKE_MAS3(CONFIG_SYS_LBC_ADDR, 0, + (MAS3_SX|MAS3_SW|MAS3_SR))@l + + mtspr MAS0,r6 + mtspr MAS1,r7 + mtspr MAS2,r8 + mtspr MAS3,r9 + isync + msync + tlbwe + + /* Set LBCR register */ + lis r4,CONFIG_SYS_LBCR_ADDR@h + ori r4,r4,CONFIG_SYS_LBCR_ADDR@l + + lis r5,CONFIG_SYS_LBC_LBCR@h + ori r5,r5,CONFIG_SYS_LBC_LBCR@l + stw r5,0(r4) + isync + + /* invalidate this temp TLB */ + lis r4,CONFIG_SYS_LBC_ADDR@h + ori r4,r4,CONFIG_SYS_LBC_ADDR@l + tlbivax 0,r4 + isync + +#endif /* CONFIG_MPC8569 */ + + lis r6,FSL_BOOKE_MAS0(1, 15, 0)@h + ori r6,r6,FSL_BOOKE_MAS0(1, 15, 0)@l + +#ifndef CONFIG_SYS_RAMBOOT + /* create a temp mapping in AS=1 to the 4M boot window */ + lis r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_4M)@h + ori r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_4M)@l + + lis r8,FSL_BOOKE_MAS2(TEXT_BASE & 0xffc00000, (MAS2_I|MAS2_G))@h + ori r8,r8,FSL_BOOKE_MAS2(TEXT_BASE & 0xffc00000, (MAS2_I|MAS2_G))@l + + /* The 85xx has the default boot window 0xff800000 - 0xffffffff */ + lis r9,FSL_BOOKE_MAS3(0xffc00000, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@h + ori r9,r9,FSL_BOOKE_MAS3(0xffc00000, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@l +#else + /* + * create a temp mapping in AS=1 to the 1M TEXT_BASE space, the main + * image has been relocated to TEXT_BASE on the second stage. + */ + lis r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_1M)@h + ori r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_1M)@l + + lis r8,FSL_BOOKE_MAS2(TEXT_BASE, (MAS2_I|MAS2_G))@h + ori r8,r8,FSL_BOOKE_MAS2(TEXT_BASE, (MAS2_I|MAS2_G))@l + + lis r9,FSL_BOOKE_MAS3(TEXT_BASE, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@h + ori r9,r9,FSL_BOOKE_MAS3(TEXT_BASE, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@l +#endif + + mtspr MAS0,r6 + mtspr MAS1,r7 + mtspr MAS2,r8 + mtspr MAS3,r9 + isync + msync + tlbwe + + /* create a temp mapping in AS=1 to the stack */ + lis r6,FSL_BOOKE_MAS0(1, 14, 0)@h + ori r6,r6,FSL_BOOKE_MAS0(1, 14, 0)@l + + lis r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_16K)@h + ori r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_16K)@l + + lis r8,FSL_BOOKE_MAS2(CONFIG_SYS_INIT_RAM_ADDR, 0)@h + ori r8,r8,FSL_BOOKE_MAS2(CONFIG_SYS_INIT_RAM_ADDR, 0)@l + + lis r9,FSL_BOOKE_MAS3(CONFIG_SYS_INIT_RAM_ADDR, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@h + ori r9,r9,FSL_BOOKE_MAS3(CONFIG_SYS_INIT_RAM_ADDR, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@l + + mtspr MAS0,r6 + mtspr MAS1,r7 + mtspr MAS2,r8 + mtspr MAS3,r9 + isync + msync + tlbwe + + lis r6,MSR_IS|MSR_DS@h + ori r6,r6,MSR_IS|MSR_DS@l + lis r7,switch_as@h + ori r7,r7,switch_as@l + + mtspr SPRN_SRR0,r7 + mtspr SPRN_SRR1,r6 + rfi + +switch_as: +/* L1 DCache is used for initial RAM */ + + /* Allocate Initial RAM in data cache. + */ + lis r3,CONFIG_SYS_INIT_RAM_ADDR@h + ori r3,r3,CONFIG_SYS_INIT_RAM_ADDR@l + mfspr r2, L1CFG0 + andi. r2, r2, 0x1ff + /* cache size * 1024 / (2 * L1 line size) */ + slwi r2, r2, (10 - 1 - L1_CACHE_SHIFT) + mtctr r2 + li r0,0 +1: + dcbz r0,r3 + dcbtls 0,r0,r3 + addi r3,r3,CONFIG_SYS_CACHELINE_SIZE + bdnz 1b + + /* Jump out the last 4K page and continue to 'normal' start */ +#ifdef CONFIG_SYS_RAMBOOT + b _start_cont +#else + /* Calculate absolute address in FLASH and jump there */ + /*--------------------------------------------------------------*/ + lis r3,CONFIG_SYS_MONITOR_BASE@h + ori r3,r3,CONFIG_SYS_MONITOR_BASE@l + addi r3,r3,_start_cont - _start + _START_OFFSET + mtlr r3 + blr +#endif + + .text + .globl _start +_start: + .long 0x27051956 /* U-BOOT Magic Number */ + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" + .ascii CONFIG_IDENT_STRING, "\0" + + .align 4 + .globl _start_cont +_start_cont: + /* Setup the stack in initial RAM,could be L2-as-SRAM or L1 dcache*/ + lis r1,CONFIG_SYS_INIT_RAM_ADDR@h + ori r1,r1,CONFIG_SYS_INIT_SP_OFFSET@l + + li r0,0 + stwu r0,-4(r1) + stwu r0,-4(r1) /* Terminate call chain */ + + stwu r1,-8(r1) /* Save back chain and move SP */ + lis r0,RESET_VECTOR@h /* Address of reset vector */ + ori r0,r0,RESET_VECTOR@l + stwu r1,-8(r1) /* Save back chain and move SP */ + stw r0,+12(r1) /* Save return addr (underflow vect) */ + + GET_GOT + bl cpu_init_early_f + + /* switch back to AS = 0 */ + lis r3,(MSR_CE|MSR_ME|MSR_DE)@h + ori r3,r3,(MSR_CE|MSR_ME|MSR_DE)@l + mtmsr r3 + isync + + bl cpu_init_f + bl board_init_f + isync + +#ifndef CONFIG_NAND_SPL + . = EXC_OFF_SYS_RESET + .globl _start_of_vectors +_start_of_vectors: + +/* Critical input. */ + CRIT_EXCEPTION(0x0100, CriticalInput, CritcalInputException) + +/* Machine check */ + MCK_EXCEPTION(0x200, MachineCheck, MachineCheckException) + +/* Data Storage exception. */ + STD_EXCEPTION(0x0300, DataStorage, UnknownException) + +/* Instruction Storage exception. */ + STD_EXCEPTION(0x0400, InstStorage, UnknownException) + +/* External Interrupt exception. */ + STD_EXCEPTION(0x0500, ExtInterrupt, ExtIntException) + +/* Alignment exception. */ + . = 0x0600 +Alignment: + EXCEPTION_PROLOG(SRR0, SRR1) + mfspr r4,DAR + stw r4,_DAR(r21) + mfspr r5,DSISR + stw r5,_DSISR(r21) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) + +/* Program check exception */ + . = 0x0700 +ProgramCheck: + EXCEPTION_PROLOG(SRR0, SRR1) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, + MSR_KERNEL, COPY_EE) + + /* No FPU on MPC85xx. This exception is not supposed to happen. + */ + STD_EXCEPTION(0x0800, FPUnavailable, UnknownException) + + . = 0x0900 +/* + * r0 - SYSCALL number + * r3-... arguments + */ +SystemCall: + addis r11,r0,0 /* get functions table addr */ + ori r11,r11,0 /* Note: this code is patched in trap_init */ + addis r12,r0,0 /* get number of functions */ + ori r12,r12,0 + + cmplw 0,r0,r12 + bge 1f + + rlwinm r0,r0,2,0,31 /* fn_addr = fn_tbl[r0] */ + add r11,r11,r0 + lwz r11,0(r11) + + li r20,0xd00-4 /* Get stack pointer */ + lwz r12,0(r20) + subi r12,r12,12 /* Adjust stack pointer */ + li r0,0xc00+_end_back-SystemCall + cmplw 0,r0,r12 /* Check stack overflow */ + bgt 1f + stw r12,0(r20) + + mflr r0 + stw r0,0(r12) + mfspr r0,SRR0 + stw r0,4(r12) + mfspr r0,SRR1 + stw r0,8(r12) + + li r12,0xc00+_back-SystemCall + mtlr r12 + mtspr SRR0,r11 + +1: SYNC + rfi +_back: + + mfmsr r11 /* Disable interrupts */ + li r12,0 + ori r12,r12,MSR_EE + andc r11,r11,r12 + SYNC /* Some chip revs need this... */ + mtmsr r11 + SYNC + + li r12,0xd00-4 /* restore regs */ + lwz r12,0(r12) + + lwz r11,0(r12) + mtlr r11 + lwz r11,4(r12) + mtspr SRR0,r11 + lwz r11,8(r12) + mtspr SRR1,r11 + + addi r12,r12,12 /* Adjust stack pointer */ + li r20,0xd00-4 + stw r12,0(r20) + + SYNC + rfi +_end_back: + + STD_EXCEPTION(0x0a00, Decrementer, timer_interrupt) + STD_EXCEPTION(0x0b00, IntervalTimer, UnknownException) + STD_EXCEPTION(0x0c00, WatchdogTimer, UnknownException) + + STD_EXCEPTION(0x0d00, DataTLBError, UnknownException) + STD_EXCEPTION(0x0e00, InstructionTLBError, UnknownException) + + CRIT_EXCEPTION(0x0f00, DebugBreakpoint, DebugException ) + + .globl _end_of_vectors +_end_of_vectors: + + + . = . + (0x100 - ( . & 0xff )) /* align for debug */ + +/* + * This code finishes saving the registers to the exception frame + * and jumps to the appropriate handler for the exception. + * Register r21 is pointer into trap frame, r1 has new stack pointer. + */ + .globl transfer_to_handler +transfer_to_handler: + stw r22,_NIP(r21) + lis r22,MSR_POW@h + andc r23,r23,r22 + stw r23,_MSR(r21) + SAVE_GPR(7, r21) + SAVE_4GPRS(8, r21) + SAVE_8GPRS(12, r21) + SAVE_8GPRS(24, r21) + + mflr r23 + andi. r24,r23,0x3f00 /* get vector offset */ + stw r24,TRAP(r21) + li r22,0 + stw r22,RESULT(r21) + mtspr SPRG2,r22 /* r1 is now kernel sp */ + + lwz r24,0(r23) /* virtual address of handler */ + lwz r23,4(r23) /* where to go when done */ + mtspr SRR0,r24 + mtspr SRR1,r20 + mtlr r23 + SYNC + rfi /* jump to handler, enable MMU */ + +int_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SRR0,r2 + mtspr SRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfi + +crit_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SPRN_CSRR0,r2 + mtspr SPRN_CSRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfci + +mck_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SPRN_MCSRR0,r2 + mtspr SPRN_MCSRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfmci + +/* Cache functions. +*/ +.globl invalidate_icache +invalidate_icache: + mfspr r0,L1CSR1 + ori r0,r0,L1CSR1_ICFI + msync + isync + mtspr L1CSR1,r0 + isync + blr /* entire I cache */ + +.globl invalidate_dcache +invalidate_dcache: + mfspr r0,L1CSR0 + ori r0,r0,L1CSR0_DCFI + msync + isync + mtspr L1CSR0,r0 + isync + blr + + .globl icache_enable +icache_enable: + mflr r8 + bl invalidate_icache + mtlr r8 + isync + mfspr r4,L1CSR1 + ori r4,r4,0x0001 + oris r4,r4,0x0001 + mtspr L1CSR1,r4 + isync + blr + + .globl icache_disable +icache_disable: + mfspr r0,L1CSR1 + lis r3,0 + ori r3,r3,L1CSR1_ICE + andc r0,r0,r3 + mtspr L1CSR1,r0 + isync + blr + + .globl icache_status +icache_status: + mfspr r3,L1CSR1 + andi. r3,r3,L1CSR1_ICE + blr + + .globl dcache_enable +dcache_enable: + mflr r8 + bl invalidate_dcache + mtlr r8 + isync + mfspr r0,L1CSR0 + ori r0,r0,0x0001 + oris r0,r0,0x0001 + msync + isync + mtspr L1CSR0,r0 + isync + blr + + .globl dcache_disable +dcache_disable: + mfspr r3,L1CSR0 + lis r4,0 + ori r4,r4,L1CSR0_DCE + andc r3,r3,r4 + mtspr L1CSR0,r0 + isync + blr + + .globl dcache_status +dcache_status: + mfspr r3,L1CSR0 + andi. r3,r3,L1CSR0_DCE + blr + + .globl get_pir +get_pir: + mfspr r3,PIR + blr + + .globl get_pvr +get_pvr: + mfspr r3,PVR + blr + + .globl get_svr +get_svr: + mfspr r3,SVR + blr + + .globl wr_tcr +wr_tcr: + mtspr TCR,r3 + blr + +/*------------------------------------------------------------------------------- */ +/* Function: in8 */ +/* Description: Input 8 bits */ +/*------------------------------------------------------------------------------- */ + .globl in8 +in8: + lbz r3,0x0000(r3) + blr + +/*------------------------------------------------------------------------------- */ +/* Function: out8 */ +/* Description: Output 8 bits */ +/*------------------------------------------------------------------------------- */ + .globl out8 +out8: + stb r4,0x0000(r3) + sync + blr + +/*------------------------------------------------------------------------------- */ +/* Function: out16 */ +/* Description: Output 16 bits */ +/*------------------------------------------------------------------------------- */ + .globl out16 +out16: + sth r4,0x0000(r3) + sync + blr + +/*------------------------------------------------------------------------------- */ +/* Function: out16r */ +/* Description: Byte reverse and output 16 bits */ +/*------------------------------------------------------------------------------- */ + .globl out16r +out16r: + sthbrx r4,r0,r3 + sync + blr + +/*------------------------------------------------------------------------------- */ +/* Function: out32 */ +/* Description: Output 32 bits */ +/*------------------------------------------------------------------------------- */ + .globl out32 +out32: + stw r4,0x0000(r3) + sync + blr + +/*------------------------------------------------------------------------------- */ +/* Function: out32r */ +/* Description: Byte reverse and output 32 bits */ +/*------------------------------------------------------------------------------- */ + .globl out32r +out32r: + stwbrx r4,r0,r3 + sync + blr + +/*------------------------------------------------------------------------------- */ +/* Function: in16 */ +/* Description: Input 16 bits */ +/*------------------------------------------------------------------------------- */ + .globl in16 +in16: + lhz r3,0x0000(r3) + blr + +/*------------------------------------------------------------------------------- */ +/* Function: in16r */ +/* Description: Input 16 bits and byte reverse */ +/*------------------------------------------------------------------------------- */ + .globl in16r +in16r: + lhbrx r3,r0,r3 + blr + +/*------------------------------------------------------------------------------- */ +/* Function: in32 */ +/* Description: Input 32 bits */ +/*------------------------------------------------------------------------------- */ + .globl in32 +in32: + lwz 3,0x0000(3) + blr + +/*------------------------------------------------------------------------------- */ +/* Function: in32r */ +/* Description: Input 32 bits and byte reverse */ +/*------------------------------------------------------------------------------- */ + .globl in32r +in32r: + lwbrx r3,r0,r3 + blr +#endif /* !CONFIG_NAND_SPL */ + +/*------------------------------------------------------------------------------*/ + +/* + * void write_tlb(mas0, mas1, mas2, mas3, mas7) + */ + .globl write_tlb +write_tlb: + mtspr MAS0,r3 + mtspr MAS1,r4 + mtspr MAS2,r5 + mtspr MAS3,r6 +#ifdef CONFIG_ENABLE_36BIT_PHYS + mtspr MAS7,r7 +#endif + li r3,0 +#ifdef CONFIG_SYS_BOOK3E_HV + mtspr MAS8,r3 +#endif + isync + tlbwe + msync + isync + blr + +/* + * void relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * r3 = dest + * r4 = src + * r5 = length in bytes + * r6 = cachelinesize + */ + .globl relocate_code +relocate_code: + mr r1,r3 /* Set new stack pointer */ + mr r9,r4 /* Save copy of Init Data pointer */ + mr r10,r5 /* Save copy of Destination Address */ + + GET_GOT + mr r3,r5 /* Destination Address */ + lis r4,CONFIG_SYS_MONITOR_BASE@h /* Source Address */ + ori r4,r4,CONFIG_SYS_MONITOR_BASE@l + lwz r5,GOT(__init_end) + sub r5,r5,r4 + li r6,CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */ + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address + * + * Offset: + */ + sub r15,r10,r4 + + /* First our own GOT */ + add r12,r12,r15 + /* the the one used by the C code */ + add r30,r30,r15 + + /* + * Now relocate code + */ + + cmplw cr1,r3,r4 + addi r0,r5,3 + srwi. r0,r0,2 + beq cr1,4f /* In place copy is not necessary */ + beq 7f /* Protect against 0 count */ + mtctr r0 + bge cr1,2f + + la r8,-4(r4) + la r7,-4(r3) +1: lwzu r0,4(r8) + stwu r0,4(r7) + bdnz 1b + b 4f + +2: slwi r0,r0,2 + add r8,r4,r0 + add r7,r3,r0 +3: lwzu r0,-4(r8) + stwu r0,-4(r7) + bdnz 3b + +/* + * Now flush the cache: note that we must start from a cache aligned + * address. Otherwise we might miss one cache line. + */ +4: cmpwi r6,0 + add r5,r3,r5 + beq 7f /* Always flush prefetch queue in any case */ + subi r0,r6,1 + andc r3,r3,r0 + mr r4,r3 +5: dcbst 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 5b + sync /* Wait for all dcbst to complete on bus */ + mr r4,r3 +6: icbi 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 6b +7: sync /* Wait for all icbi to complete on bus */ + isync + + /* + * Re-point the IVPR at RAM + */ + mtspr IVPR,r10 + +/* + * We are done. Do not return, instead branch to second part of board + * initialization, now running from RAM. + */ + + addi r0,r10,in_ram - _start + _START_OFFSET + mtlr r0 + blr /* NEVER RETURNS! */ + .globl in_ram +in_ram: + + /* + * Relocation Function, r12 point to got2+0x8000 + * + * Adjust got2 pointers, no need to check for 0, this code + * already puts a few entries in the table. + */ + li r0,__got2_entries@sectoff@l + la r3,GOT(_GOT2_TABLE_) + lwz r11,GOT(_GOT2_TABLE_) + mtctr r0 + sub r11,r3,r11 + addi r3,r3,-4 +1: lwzu r0,4(r3) + cmpwi r0,0 + beq- 2f + add r0,r0,r11 + stw r0,0(r3) +2: bdnz 1b + + /* + * Now adjust the fixups and the pointers to the fixups + * in case we need to move ourselves again. + */ + li r0,__fixup_entries@sectoff@l + lwz r3,GOT(_FIXUP_TABLE_) + cmpwi r0,0 + mtctr r0 + addi r3,r3,-4 + beq 4f +3: lwzu r4,4(r3) + lwzux r0,r4,r11 + add r0,r0,r11 + stw r10,0(r3) + stw r0,0(r4) + bdnz 3b +4: +clear_bss: + /* + * Now clear BSS segment + */ + lwz r3,GOT(__bss_start) + lwz r4,GOT(_end) + + cmplw 0,r3,r4 + beq 6f + + li r0,0 +5: + stw r0,0(r3) + addi r3,r3,4 + cmplw 0,r3,r4 + bne 5b +6: + + mr r3,r9 /* Init Data pointer */ + mr r4,r10 /* Destination Address */ + bl board_init_r + +#ifndef CONFIG_NAND_SPL + /* + * Copy exception vector code to low memory + * + * r3: dest_addr + * r7: source address, r8: end address, r9: target address + */ + .globl trap_init +trap_init: + mflr r4 /* save link register */ + GET_GOT + lwz r7,GOT(_start_of_vectors) + lwz r8,GOT(_end_of_vectors) + + li r9,0x100 /* reset vector always at 0x100 */ + + cmplw 0,r7,r8 + bgelr /* return if r7>=r8 - just in case */ +1: + lwz r0,0(r7) + stw r0,0(r9) + addi r7,r7,4 + addi r9,r9,4 + cmplw 0,r7,r8 + bne 1b + + /* + * relocate `hdlr' and `int_return' entries + */ + li r7,.L_CriticalInput - _start + _START_OFFSET + bl trap_reloc + li r7,.L_MachineCheck - _start + _START_OFFSET + bl trap_reloc + li r7,.L_DataStorage - _start + _START_OFFSET + bl trap_reloc + li r7,.L_InstStorage - _start + _START_OFFSET + bl trap_reloc + li r7,.L_ExtInterrupt - _start + _START_OFFSET + bl trap_reloc + li r7,.L_Alignment - _start + _START_OFFSET + bl trap_reloc + li r7,.L_ProgramCheck - _start + _START_OFFSET + bl trap_reloc + li r7,.L_FPUnavailable - _start + _START_OFFSET + bl trap_reloc + li r7,.L_Decrementer - _start + _START_OFFSET + bl trap_reloc + li r7,.L_IntervalTimer - _start + _START_OFFSET + li r8,_end_of_vectors - _start + _START_OFFSET +2: + bl trap_reloc + addi r7,r7,0x100 /* next exception vector */ + cmplw 0,r7,r8 + blt 2b + + lis r7,0x0 + mtspr IVPR,r7 + + mtlr r4 /* restore link register */ + blr + +.globl unlock_ram_in_cache +unlock_ram_in_cache: + /* invalidate the INIT_RAM section */ + lis r3,(CONFIG_SYS_INIT_RAM_ADDR & ~(CONFIG_SYS_CACHELINE_SIZE-1))@h + ori r3,r3,(CONFIG_SYS_INIT_RAM_ADDR & ~(CONFIG_SYS_CACHELINE_SIZE-1))@l + mfspr r4,L1CFG0 + andi. r4,r4,0x1ff + slwi r4,r4,(10 - 1 - L1_CACHE_SHIFT) + mtctr r4 +1: dcbi r0,r3 + addi r3,r3,CONFIG_SYS_CACHELINE_SIZE + bdnz 1b + sync + + /* Invalidate the TLB entries for the cache */ + lis r3,CONFIG_SYS_INIT_RAM_ADDR@h + ori r3,r3,CONFIG_SYS_INIT_RAM_ADDR@l + tlbivax 0,r3 + addi r3,r3,0x1000 + tlbivax 0,r3 + addi r3,r3,0x1000 + tlbivax 0,r3 + addi r3,r3,0x1000 + tlbivax 0,r3 + isync + blr + +.globl flush_dcache +flush_dcache: + mfspr r3,SPRN_L1CFG0 + + rlwinm r5,r3,9,3 /* Extract cache block size */ + twlgti r5,1 /* Only 32 and 64 byte cache blocks + * are currently defined. + */ + li r4,32 + subfic r6,r5,2 /* r6 = log2(1KiB / cache block size) - + * log2(number of ways) + */ + slw r5,r4,r5 /* r5 = cache block size */ + + rlwinm r7,r3,0,0xff /* Extract number of KiB in the cache */ + mulli r7,r7,13 /* An 8-way cache will require 13 + * loads per set. + */ + slw r7,r7,r6 + + /* save off HID0 and set DCFA */ + mfspr r8,SPRN_HID0 + ori r9,r8,HID0_DCFA@l + mtspr SPRN_HID0,r9 + isync + + lis r4,0 + mtctr r7 + +1: lwz r3,0(r4) /* Load... */ + add r4,r4,r5 + bdnz 1b + + msync + lis r4,0 + mtctr r7 + +1: dcbf 0,r4 /* ...and flush. */ + add r4,r4,r5 + bdnz 1b + + /* restore HID0 */ + mtspr SPRN_HID0,r8 + isync + + blr + +.globl setup_ivors +setup_ivors: + +#include "fixed_ivor.S" + blr +#endif /* !CONFIG_NAND_SPL */ diff --git a/arch/ppc/cpu/mpc85xx/tlb.c b/arch/ppc/cpu/mpc85xx/tlb.c new file mode 100644 index 0000000..b3037ac --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/tlb.c @@ -0,0 +1,277 @@ +/* + * Copyright 2008-2009 Freescale Semiconductor, Inc. + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/processor.h> +#include <asm/mmu.h> +#ifdef CONFIG_ADDR_MAP +#include <addr_map.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +void invalidate_tlb(u8 tlb) +{ + if (tlb == 0) + mtspr(MMUCSR0, 0x4); + if (tlb == 1) + mtspr(MMUCSR0, 0x2); +} + +void init_tlbs(void) +{ + int i; + + for (i = 0; i < num_tlb_entries; i++) { + write_tlb(tlb_table[i].mas0, + tlb_table[i].mas1, + tlb_table[i].mas2, + tlb_table[i].mas3, + tlb_table[i].mas7); + } + + return ; +} + +#ifndef CONFIG_NAND_SPL +static inline void use_tlb_cam(u8 idx) +{ + int i = idx / 32; + int bit = idx % 32; + + gd->used_tlb_cams[i] |= (1 << bit); +} + +static inline void free_tlb_cam(u8 idx) +{ + int i = idx / 32; + int bit = idx % 32; + + gd->used_tlb_cams[i] &= ~(1 << bit); +} + +void init_used_tlb_cams(void) +{ + int i; + unsigned int num_cam = mfspr(SPRN_TLB1CFG) & 0xfff; + + for (i = 0; i < ((CONFIG_SYS_NUM_TLBCAMS+31)/32); i++) + gd->used_tlb_cams[i] = 0; + + /* walk all the entries */ + for (i = 0; i < num_cam; i++) { + u32 _mas1; + + mtspr(MAS0, FSL_BOOKE_MAS0(1, i, 0)); + + asm volatile("tlbre;isync"); + _mas1 = mfspr(MAS1); + + /* if the entry isn't valid skip it */ + if ((_mas1 & MAS1_VALID)) + use_tlb_cam(i); + } +} + +int find_free_tlbcam(void) +{ + int i; + u32 idx; + + for (i = 0; i < ((CONFIG_SYS_NUM_TLBCAMS+31)/32); i++) { + idx = ffz(gd->used_tlb_cams[i]); + + if (idx != 32) + break; + } + + idx += i * 32; + + if (idx >= CONFIG_SYS_NUM_TLBCAMS) + return -1; + + return idx; +} + +void set_tlb(u8 tlb, u32 epn, u64 rpn, + u8 perms, u8 wimge, + u8 ts, u8 esel, u8 tsize, u8 iprot) +{ + u32 _mas0, _mas1, _mas2, _mas3, _mas7; + + if (tlb == 1) + use_tlb_cam(esel); + + _mas0 = FSL_BOOKE_MAS0(tlb, esel, 0); + _mas1 = FSL_BOOKE_MAS1(1, iprot, 0, ts, tsize); + _mas2 = FSL_BOOKE_MAS2(epn, wimge); + _mas3 = FSL_BOOKE_MAS3(rpn, 0, perms); + _mas7 = FSL_BOOKE_MAS7(rpn); + + write_tlb(_mas0, _mas1, _mas2, _mas3, _mas7); + +#ifdef CONFIG_ADDR_MAP + if ((tlb == 1) && (gd->flags & GD_FLG_RELOC)) + addrmap_set_entry(epn, rpn, (1UL << ((tsize * 2) + 10)), esel); +#endif +} + +void disable_tlb(u8 esel) +{ + u32 _mas0, _mas1, _mas2, _mas3, _mas7; + + free_tlb_cam(esel); + + _mas0 = FSL_BOOKE_MAS0(1, esel, 0); + _mas1 = 0; + _mas2 = 0; + _mas3 = 0; + _mas7 = 0; + + mtspr(MAS0, _mas0); + mtspr(MAS1, _mas1); + mtspr(MAS2, _mas2); + mtspr(MAS3, _mas3); +#ifdef CONFIG_ENABLE_36BIT_PHYS + mtspr(MAS7, _mas7); +#endif + asm volatile("isync;msync;tlbwe;isync"); + +#ifdef CONFIG_ADDR_MAP + if (gd->flags & GD_FLG_RELOC) + addrmap_set_entry(0, 0, 0, esel); +#endif +} + +static void tlbsx (const volatile unsigned *addr) +{ + __asm__ __volatile__ ("tlbsx 0,%0" : : "r" (addr), "m" (*addr)); +} + +/* return -1 if we didn't find anything */ +int find_tlb_idx(void *addr, u8 tlbsel) +{ + u32 _mas0, _mas1; + + /* zero out Search PID, AS */ + mtspr(MAS6, 0); + + tlbsx(addr); + + _mas0 = mfspr(MAS0); + _mas1 = mfspr(MAS1); + + /* we found something, and its in the TLB we expect */ + if ((MAS1_VALID & _mas1) && + (MAS0_TLBSEL(tlbsel) == (_mas0 & MAS0_TLBSEL_MSK))) { + return ((_mas0 & MAS0_ESEL_MSK) >> 16); + } + + return -1; +} + +#ifdef CONFIG_ADDR_MAP +void init_addr_map(void) +{ + int i; + unsigned int num_cam = mfspr(SPRN_TLB1CFG) & 0xfff; + + /* walk all the entries */ + for (i = 0; i < num_cam; i++) { + unsigned long epn; + u32 tsize, _mas1; + phys_addr_t rpn; + + mtspr(MAS0, FSL_BOOKE_MAS0(1, i, 0)); + + asm volatile("tlbre;isync"); + _mas1 = mfspr(MAS1); + + /* if the entry isn't valid skip it */ + if (!(_mas1 & MAS1_VALID)) + continue; + + tsize = (_mas1 >> 8) & 0xf; + epn = mfspr(MAS2) & MAS2_EPN; + rpn = mfspr(MAS3) & MAS3_RPN; +#ifdef CONFIG_ENABLE_36BIT_PHYS + rpn |= ((phys_addr_t)mfspr(MAS7)) << 32; +#endif + + addrmap_set_entry(epn, rpn, (1UL << ((tsize * 2) + 10)), i); + } + + return ; +} +#endif + +unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg) +{ + int i; + unsigned int tlb_size; + unsigned int ram_tlb_address = (unsigned int)CONFIG_SYS_DDR_SDRAM_BASE; + unsigned int max_cam = (mfspr(SPRN_TLB1CFG) >> 16) & 0xf; + u64 size, memsize = (u64)memsize_in_meg << 20; + + size = min(memsize, CONFIG_MAX_MEM_MAPPED); + + /* Convert (4^max) kB to (2^max) bytes */ + max_cam = max_cam * 2 + 10; + + for (i = 0; size && i < 8; i++) { + int ram_tlb_index = find_free_tlbcam(); + u32 camsize = __ilog2_u64(size) & ~1U; + u32 align = __ilog2(ram_tlb_address) & ~1U; + + if (ram_tlb_index == -1) + break; + + if (align == -2) align = max_cam; + if (camsize > align) + camsize = align; + + if (camsize > max_cam) + camsize = max_cam; + + tlb_size = (camsize - 10) / 2; + + set_tlb(1, ram_tlb_address, ram_tlb_address, + MAS3_SX|MAS3_SW|MAS3_SR, 0, + 0, ram_tlb_index, tlb_size, 1); + + size -= 1ULL << camsize; + memsize -= 1ULL << camsize; + ram_tlb_address += 1UL << camsize; + } + + if (memsize) + print_size(memsize, " left unmapped\n"); + + /* + * Confirm that the requested amount of memory was mapped. + */ + return memsize_in_meg; +} +#endif /* !CONFIG_NAND_SPL */ diff --git a/arch/ppc/cpu/mpc85xx/traps.c b/arch/ppc/cpu/mpc85xx/traps.c new file mode 100644 index 0000000..10108d8 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/traps.c @@ -0,0 +1,325 @@ +/* + * linux/arch/ppc/kernel/traps.c + * + * Copyright 2007 Freescale Semiconductor. + * Copyright (C) 2003 Motorola + * Modified by Xianghua Xiao(x.xiao@motorola.com) + * + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * Modified by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras (paulus@cs.anu.edu.au) + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * This file handles the architecture-dependent parts of hardware exceptions + */ + +#include <common.h> +#include <command.h> +#include <kgdb.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* Returns 0 if exception not found and fixup otherwise. */ +extern unsigned long search_exception_table(unsigned long); + +/* + * End of addressable memory. This may be less than the actual + * amount of memory on the system if we're unable to keep all + * the memory mapped in. + */ +extern ulong get_effective_memsize(void); +#define END_OF_MEM (gd->bd->bi_memstart + get_effective_memsize()) + +static __inline__ void set_tsr(unsigned long val) +{ + asm volatile("mtspr 0x150, %0" : : "r" (val)); +} + +static __inline__ unsigned long get_esr(void) +{ + unsigned long val; + asm volatile("mfspr %0, 0x03e" : "=r" (val) :); + return val; +} + +#define ESR_MCI 0x80000000 +#define ESR_PIL 0x08000000 +#define ESR_PPR 0x04000000 +#define ESR_PTR 0x02000000 +#define ESR_DST 0x00800000 +#define ESR_DIZ 0x00400000 +#define ESR_U0F 0x00008000 + +#if defined(CONFIG_CMD_BEDBUG) +extern void do_bedbug_breakpoint(struct pt_regs *); +#endif + +/* + * Trap & Exception support + */ + +void +print_backtrace(unsigned long *sp) +{ + int cnt = 0; + unsigned long i; + + printf("Call backtrace: "); + while (sp) { + if ((uint)sp > END_OF_MEM) + break; + + i = sp[1]; + if (cnt++ % 7 == 0) + printf("\n"); + printf("%08lX ", i); + if (cnt > 32) break; + sp = (unsigned long *)*sp; + } + printf("\n"); +} + +void show_regs(struct pt_regs * regs) +{ + int i; + + printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n", + regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); + printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n", + regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0, + regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0, + regs->msr&MSR_IR ? 1 : 0, + regs->msr&MSR_DR ? 1 : 0); + + printf("\n"); + for (i = 0; i < 32; i++) { + if ((i % 8) == 0) + { + printf("GPR%02d: ", i); + } + + printf("%08lX ", regs->gpr[i]); + if ((i % 8) == 7) + { + printf("\n"); + } + } +} + + +void +_exception(int signr, struct pt_regs *regs) +{ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Exception in kernel pc %lx signal %d",regs->nip,signr); +} + +void +CritcalInputException(struct pt_regs *regs) +{ + panic("Critical Input Exception"); +} + +int machinecheck_count = 0; +int machinecheck_error = 0; +void +MachineCheckException(struct pt_regs *regs) +{ + unsigned long fixup; + unsigned int mcsr, mcsrr0, mcsrr1, mcar; + + /* Probing PCI using config cycles cause this exception + * when a device is not present. Catch it and return to + * the PCI exception handler. + */ + if ((fixup = search_exception_table(regs->nip)) != 0) { + regs->nip = fixup; + return; + } + + mcsrr0 = mfspr(SPRN_MCSRR0); + mcsrr1 = mfspr(SPRN_MCSRR1); + mcsr = mfspr(SPRN_MCSR); + mcar = mfspr(SPRN_MCAR); + + machinecheck_count++; + machinecheck_error=1; + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + printf("Machine check in kernel mode.\n"); + printf("Caused by (from mcsr): "); + printf("mcsr = 0x%08x\n", mcsr); + if (mcsr & 0x80000000) + printf("Machine check input pin\n"); + if (mcsr & 0x40000000) + printf("Instruction cache parity error\n"); + if (mcsr & 0x20000000) + printf("Data cache push parity error\n"); + if (mcsr & 0x10000000) + printf("Data cache parity error\n"); + if (mcsr & 0x00000080) + printf("Bus instruction address error\n"); + if (mcsr & 0x00000040) + printf("Bus Read address error\n"); + if (mcsr & 0x00000020) + printf("Bus Write address error\n"); + if (mcsr & 0x00000010) + printf("Bus Instruction data bus error\n"); + if (mcsr & 0x00000008) + printf("Bus Read data bus error\n"); + if (mcsr & 0x00000004) + printf("Bus Write bus error\n"); + if (mcsr & 0x00000002) + printf("Bus Instruction parity error\n"); + if (mcsr & 0x00000001) + printf("Bus Read parity error\n"); + + show_regs(regs); + printf("MCSR=0x%08x \tMCSRR0=0x%08x \nMCSRR1=0x%08x \tMCAR=0x%08x\n", + mcsr, mcsrr0, mcsrr1, mcar); + print_backtrace((unsigned long *)regs->gpr[1]); + if (machinecheck_count > 10) { + panic("machine check count too high\n"); + } + + if (machinecheck_count > 1) { + regs->nip += 4; /* skip offending instruction */ + printf("Skipping current instr, Returning to 0x%08lx\n", + regs->nip); + } else { + printf("Returning back to 0x%08lx\n",regs->nip); + } +} + +void +AlignmentException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Alignment Exception"); +} + +void +ProgramCheckException(struct pt_regs *regs) +{ + long esr_val; + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + show_regs(regs); + + esr_val = get_esr(); + if( esr_val & ESR_PIL ) + printf( "** Illegal Instruction **\n" ); + else if( esr_val & ESR_PPR ) + printf( "** Privileged Instruction **\n" ); + else if( esr_val & ESR_PTR ) + printf( "** Trap Instruction **\n" ); + + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Program Check Exception"); +} + +void +PITException(struct pt_regs *regs) +{ + /* + * Reset PIT interrupt + */ + set_tsr(0x0c000000); + + /* + * Call timer_interrupt routine in interrupts.c + */ + timer_interrupt(NULL); +} + + +void +UnknownException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", + regs->nip, regs->msr, regs->trap); + _exception(0, regs); +} + +void +ExtIntException(struct pt_regs *regs) +{ + volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR); + + uint vect; + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + printf("External Interrupt Exception at PC: %lx, SR: %lx, vector=%lx", + regs->nip, regs->msr, regs->trap); + vect = pic->iack0; + printf(" irq IACK0@%05x=%d\n",(int)&pic->iack0,vect); + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); +} + +void +DebugException(struct pt_regs *regs) +{ + printf("Debugger trap at @ %lx\n", regs->nip ); + show_regs(regs); +#if defined(CONFIG_CMD_BEDBUG) + do_bedbug_breakpoint( regs ); +#endif +} + +/* Probe an address by reading. If not present, return -1, otherwise + * return 0. + */ +int +addr_probe(uint *addr) +{ + return 0; +} diff --git a/arch/ppc/cpu/mpc85xx/u-boot-nand.lds b/arch/ppc/cpu/mpc85xx/u-boot-nand.lds new file mode 100644 index 0000000..b9240f2 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/u-boot-nand.lds @@ -0,0 +1,137 @@ +/* + * Copyright 2009 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_ARCH(powerpc) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +PHDRS +{ + text PT_LOAD; + bss PT_LOAD; +} + +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + *(.text) + *(.got1) + } :text + _etext = .; + PROVIDE (etext = .); + .rodata : + { + *(.eh_frame) + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } :text + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x00FF) & 0xFFFFFF00; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(256); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(256); + __init_end = .; + + .bootpg ADDR(.text) - 0x1000 : + { + arch/ppc/cpu/mpc85xx/start.o (.bootpg) + } :text = 0xffff + + . = ADDR(.text) + 0x80000; + + __bss_start = .; + .bss (NOLOAD) : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + } :bss + + . = ALIGN(4); + _end = . ; + PROVIDE (end = .); +} diff --git a/arch/ppc/cpu/mpc85xx/u-boot-nand_spl.lds b/arch/ppc/cpu/mpc85xx/u-boot-nand_spl.lds new file mode 100644 index 0000000..fef3e42 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/u-boot-nand_spl.lds @@ -0,0 +1,67 @@ +/* + * (C) Copyright 2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de + * + * Copyright 2009 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_ARCH(powerpc) +SECTIONS +{ + . = 0xfff00000; + .text : { + *(.text) + } + _etext = .; + + .reloc : { + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + . = ALIGN(8); + .data : { + *(.rodata*) + *(.data*) + *(.sdata*) + } + _edata = .; + + . = ALIGN(8); + __init_begin = .; + __init_end = .; + + .resetvec ADDR(.text) + 0xffc : { + *(.resetvec) + } = 0xffff + + __bss_start = .; + .bss : { + *(.sbss) + *(.bss) + } + _end = .; +} +ASSERT(__init_end <= 0xfff00ffc, "NAND bootstrap too big"); diff --git a/arch/ppc/cpu/mpc85xx/u-boot.lds b/arch/ppc/cpu/mpc85xx/u-boot.lds new file mode 100644 index 0000000..9698bf4 --- /dev/null +++ b/arch/ppc/cpu/mpc85xx/u-boot.lds @@ -0,0 +1,157 @@ +/* + * Copyright 2007-2009 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef RESET_VECTOR_ADDRESS +#define RESET_VECTOR_ADDRESS 0xfffffffc +#endif + +OUTPUT_ARCH(powerpc) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +PHDRS +{ + text PT_LOAD; + bss PT_LOAD; +} + +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + *(.text) + *(.got1) + } :text + _etext = .; + PROVIDE (etext = .); + .rodata : + { + *(.eh_frame) + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } :text + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x00FF) & 0xFFFFFF00; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(256); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(256); + __init_end = .; + + .bootpg RESET_VECTOR_ADDRESS - 0xffc : + { + arch/ppc/cpu/mpc85xx/start.o (.bootpg) + } :text = 0xffff + + .resetvec RESET_VECTOR_ADDRESS : + { + *(.resetvec) + } :text = 0xffff + + . = RESET_VECTOR_ADDRESS + 0x4; + + /* + * Make sure that the bss segment isn't linked at 0x0, otherwise its + * address won't be updated during relocation fixups. Note that + * this is a temporary fix. Code to dynamically the fixup the bss + * location will be added in the future. When the bss relocation + * fixup code is present this workaround should be removed. + */ +#if (RESET_VECTOR_ADDRESS == 0xfffffffc) + . |= 0x10; +#endif + + __bss_start = .; + .bss (NOLOAD) : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + } :bss + + . = ALIGN(4); + _end = . ; + PROVIDE (end = .); +} diff --git a/arch/ppc/cpu/mpc86xx/Makefile b/arch/ppc/cpu/mpc86xx/Makefile new file mode 100644 index 0000000..daca79a --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/Makefile @@ -0,0 +1,63 @@ +# +# Copyright 2007 Freescale Semiconductor, Inc. +# (C) Copyright 2002,2003 Motorola Inc. +# Xianghua Xiao,X.Xiao@motorola.com +# +# (C) Copyright 2004 Freescale Semiconductor. (MC86xx Port) +# Jeff Brown +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).a + +START = start.o + +SOBJS-y += cache.o +SOBJS-$(CONFIG_MP) += release.o + +COBJS-y += cpu.o +COBJS-y += cpu_init.o +# 8610 & 8641 are identical w/regards to DDR +COBJS-$(CONFIG_MPC8610) += ddr-8641.o +COBJS-$(CONFIG_MPC8641) += ddr-8641.o +COBJS-$(CONFIG_OF_LIBFDT) += fdt.o +COBJS-y += interrupts.o +COBJS-$(CONFIG_MP) += mp.o +COBJS-y += speed.o +COBJS-y += traps.o + +SRCS := $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(ASOBJS) $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/ppc/cpu/mpc86xx/cache.S b/arch/ppc/cpu/mpc86xx/cache.S new file mode 100644 index 0000000..0bb058b --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/cache.S @@ -0,0 +1,378 @@ +#include <config.h> +#include <mpc86xx.h> +#include <version.h> + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#ifndef CACHE_LINE_SIZE +# define CACHE_LINE_SIZE L1_CACHE_BYTES +#endif + +#if CACHE_LINE_SIZE == 128 +#define LG_CACHE_LINE_SIZE 7 +#elif CACHE_LINE_SIZE == 32 +#define LG_CACHE_LINE_SIZE 5 +#elif CACHE_LINE_SIZE == 16 +#define LG_CACHE_LINE_SIZE 4 +#elif CACHE_LINE_SIZE == 8 +#define LG_CACHE_LINE_SIZE 3 +#else +# error "Invalid cache line size!" +#endif + +/* + * Most of this code is taken from 74xx_7xx/cache.S + * and then cleaned up a bit + */ + +/* + * Invalidate L1 instruction cache. + */ +_GLOBAL(invalidate_l1_instruction_cache) + /* use invalidate-all bit in HID0 */ + mfspr r3,HID0 + ori r3,r3,HID0_ICFI + mtspr HID0,r3 + isync + blr + +/* + * Invalidate L1 data cache. + */ +_GLOBAL(invalidate_l1_data_cache) + mfspr r3,HID0 + ori r3,r3,HID0_DCFI + mtspr HID0,r3 + isync + blr + +/* + * Flush data cache. + */ +_GLOBAL(flush_dcache) + lis r3,0 + lis r5,CACHE_LINE_SIZE +flush: + cmp 0,1,r3,r5 + bge done + lwz r5,0(r3) + lis r5,CACHE_LINE_SIZE + addi r3,r3,0x4 + b flush +done: + blr +/* + * Write any modified data cache blocks out to memory + * and invalidate the corresponding instruction cache blocks. + * This is a no-op on the 601. + * + * flush_icache_range(unsigned long start, unsigned long stop) + */ +_GLOBAL(flush_icache_range) + li r5,CACHE_LINE_SIZE-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,LG_CACHE_LINE_SIZE + beqlr + mtctr r4 + mr r6,r3 +1: dcbst 0,r3 + addi r3,r3,CACHE_LINE_SIZE + bdnz 1b + sync /* wait for dcbst's to get to ram */ + mtctr r4 +2: icbi 0,r6 + addi r6,r6,CACHE_LINE_SIZE + bdnz 2b + sync /* additional sync needed on g4 */ + isync + blr +/* + * Write any modified data cache blocks out to memory. + * Does not invalidate the corresponding cache lines (especially for + * any corresponding instruction cache). + * + * clean_dcache_range(unsigned long start, unsigned long stop) + */ +_GLOBAL(clean_dcache_range) + li r5,CACHE_LINE_SIZE-1 + andc r3,r3,r5 /* align r3 down to cache line */ + subf r4,r3,r4 /* r4 = offset of stop from start of cache line */ + add r4,r4,r5 /* r4 += cache_line_size-1 */ + srwi. r4,r4,LG_CACHE_LINE_SIZE /* r4 = number of cache lines to flush */ + beqlr /* if r4 == 0 return */ + mtctr r4 /* ctr = r4 */ + + sync +1: dcbst 0,r3 + addi r3,r3,CACHE_LINE_SIZE + bdnz 1b + sync /* wait for dcbst's to get to ram */ + blr + +/* + * Write any modified data cache blocks out to memory + * and invalidate the corresponding instruction cache blocks. + * + * flush_dcache_range(unsigned long start, unsigned long stop) + */ +_GLOBAL(flush_dcache_range) + li r5,CACHE_LINE_SIZE-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,LG_CACHE_LINE_SIZE + beqlr + mtctr r4 + + sync +1: dcbf 0,r3 + addi r3,r3,CACHE_LINE_SIZE + bdnz 1b + sync /* wait for dcbf's to get to ram */ + blr + +/* + * Like above, but invalidate the D-cache. This is used by the 8xx + * to invalidate the cache so the PPC core doesn't get stale data + * from the CPM (no cache snooping here :-). + * + * invalidate_dcache_range(unsigned long start, unsigned long stop) + */ +_GLOBAL(invalidate_dcache_range) + li r5,CACHE_LINE_SIZE-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,LG_CACHE_LINE_SIZE + beqlr + mtctr r4 + + sync +1: dcbi 0,r3 + addi r3,r3,CACHE_LINE_SIZE + bdnz 1b + sync /* wait for dcbi's to get to ram */ + blr + +/* + * Flush a particular page from the data cache to RAM. + * Note: this is necessary because the instruction cache does *not* + * snoop from the data cache. + * + * void __flush_page_to_ram(void *page) + */ +_GLOBAL(__flush_page_to_ram) + rlwinm r3,r3,0,0,19 /* Get page base address */ + li r4,4096/CACHE_LINE_SIZE /* Number of lines in a page */ + mtctr r4 + mr r6,r3 +0: dcbst 0,r3 /* Write line to ram */ + addi r3,r3,CACHE_LINE_SIZE + bdnz 0b + sync + mtctr r4 +1: icbi 0,r6 + addi r6,r6,CACHE_LINE_SIZE + bdnz 1b + sync + isync + blr + +/* + * Flush a particular page from the instruction cache. + * Note: this is necessary because the instruction cache does *not* + * snoop from the data cache. + * + * void __flush_icache_page(void *page) + */ +_GLOBAL(__flush_icache_page) + li r4,4096/CACHE_LINE_SIZE /* Number of lines in a page */ + mtctr r4 +1: icbi 0,r3 + addi r3,r3,CACHE_LINE_SIZE + bdnz 1b + sync + isync + blr + +/* + * Clear a page using the dcbz instruction, which doesn't cause any + * memory traffic (except to write out any cache lines which get + * displaced). This only works on cacheable memory. + */ +_GLOBAL(clear_page) + li r0,4096/CACHE_LINE_SIZE + mtctr r0 +1: dcbz 0,r3 + addi r3,r3,CACHE_LINE_SIZE + bdnz 1b + blr + +/* + * Enable L1 Instruction cache + */ +_GLOBAL(icache_enable) + mfspr r3, HID0 + li r5, HID0_ICFI|HID0_ILOCK + andc r3, r3, r5 + ori r3, r3, HID0_ICE + ori r5, r3, HID0_ICFI + mtspr HID0, r5 + mtspr HID0, r3 + isync + blr + +/* + * Disable L1 Instruction cache + */ +_GLOBAL(icache_disable) + mflr r4 + bl invalidate_l1_instruction_cache /* uses r3 */ + sync + mtlr r4 + mfspr r3, HID0 + li r5, 0 + ori r5, r5, HID0_ICE + andc r3, r3, r5 + mtspr HID0, r3 + isync + blr + +/* + * Is instruction cache enabled? + */ +_GLOBAL(icache_status) + mfspr r3, HID0 + andi. r3, r3, HID0_ICE + blr + + +_GLOBAL(l1dcache_enable) + mfspr r3, HID0 + li r5, HID0_DCFI|HID0_DLOCK + andc r3, r3, r5 + mtspr HID0, r3 /* no invalidate, unlock */ + ori r3, r3, HID0_DCE + ori r5, r3, HID0_DCFI + mtspr HID0, r5 /* enable + invalidate */ + mtspr HID0, r3 /* enable */ + sync + blr + +/* + * Enable data cache(s) - L1 and optionally L2 + * Calls l2cache_enable. LR saved in r5 + */ +_GLOBAL(dcache_enable) + mfspr r3, HID0 + li r5, HID0_DCFI|HID0_DLOCK + andc r3, r3, r5 + mtspr HID0, r3 /* no invalidate, unlock */ + ori r3, r3, HID0_DCE + ori r5, r3, HID0_DCFI + mtspr HID0, r5 /* enable + invalidate */ + mtspr HID0, r3 /* enable */ + sync +#ifdef CONFIG_SYS_L2 + mflr r5 + bl l2cache_enable /* uses r3 and r4 */ + sync + mtlr r5 +#endif + blr + + +/* + * Disable data cache(s) - L1 and optionally L2 + * Calls flush_dcache and l2cache_disable_no_flush. + * LR saved in r4 + */ +_GLOBAL(dcache_disable) + mflr r4 /* save link register */ + bl flush_dcache /* uses r3 and r5 */ + sync + mfspr r3, HID0 + li r5, HID0_DCFI|HID0_DLOCK + andc r3, r3, r5 + mtspr HID0, r3 /* no invalidate, unlock */ + li r5, HID0_DCE|HID0_DCFI + andc r3, r3, r5 /* no enable, no invalidate */ + mtspr HID0, r3 + sync +#ifdef CONFIG_SYS_L2 + bl l2cache_disable_no_flush /* uses r3 */ +#endif + mtlr r4 /* restore link register */ + blr + +/* + * Is data cache enabled? + */ +_GLOBAL(dcache_status) + mfspr r3, HID0 + andi. r3, r3, HID0_DCE + blr + +/* + * Invalidate L2 cache using L2I, assume L2 is enabled + */ +_GLOBAL(l2cache_invalidate) + mfspr r3, l2cr + rlwinm. r3, r3, 0, 0, 0 + beq 1f + + mfspr r3, l2cr + rlwinm r3, r3, 0, 1, 31 + +#ifdef CONFIG_ALTIVEC + dssall +#endif + sync + mtspr l2cr, r3 + sync +1: mfspr r3, l2cr + oris r3, r3, L2CR_L2I@h + mtspr l2cr, r3 + +invl2: + mfspr r3, l2cr + andis. r3, r3, L2CR_L2I@h + bne invl2 + blr + +/* + * Enable L2 cache + * Calls l2cache_invalidate. LR is saved in r4 + */ +_GLOBAL(l2cache_enable) + mflr r4 /* save link register */ + bl l2cache_invalidate /* uses r3 */ + sync + lis r3, L2_ENABLE@h + ori r3, r3, L2_ENABLE@l + mtspr l2cr, r3 + isync + mtlr r4 /* restore link register */ + blr + +/* + * Disable L2 cache + * Calls flush_dcache. LR is saved in r4 + */ +_GLOBAL(l2cache_disable) + mflr r4 /* save link register */ + bl flush_dcache /* uses r3 and r5 */ + sync + mtlr r4 /* restore link register */ +l2cache_disable_no_flush: /* provide way to disable L2 w/o flushing */ + lis r3, L2_INIT@h + ori r3, r3, L2_INIT@l + mtspr l2cr, r3 + isync + blr diff --git a/arch/ppc/cpu/mpc86xx/config.mk b/arch/ppc/cpu/mpc86xx/config.mk new file mode 100644 index 0000000..ca2f837 --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/config.mk @@ -0,0 +1,27 @@ +# +# (C) Copyright 2004 Freescale Semiconductor. +# Jeff Brown +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +PLATFORM_RELFLAGS += -fPIC -meabi + +PLATFORM_CPPFLAGS += -ffixed-r2 -mstring +PLATFORM_CPPFLAGS += -maltivec -mabi=altivec -msoft-float diff --git a/arch/ppc/cpu/mpc86xx/cpu.c b/arch/ppc/cpu/mpc86xx/cpu.c new file mode 100644 index 0000000..1887575 --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/cpu.c @@ -0,0 +1,233 @@ +/* + * Copyright 2006,2009-2010 Freescale Semiconductor, Inc. + * Jeff Brown + * Srikanth Srinivasan (srikanth.srinivasan@freescale.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <asm/cache.h> +#include <asm/mmu.h> +#include <mpc86xx.h> +#include <asm/fsl_law.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Default board reset function + */ +static void +__board_reset(void) +{ + /* Do nothing */ +} +void board_reset(void) __attribute__((weak, alias("__board_reset"))); + + +int +checkcpu(void) +{ + sys_info_t sysinfo; + uint pvr, svr; + uint ver; + uint major, minor; + char buf1[32], buf2[32]; + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + volatile ccsr_gur_t *gur = &immap->im_gur; + struct cpu_type *cpu; + uint msscr0 = mfspr(MSSCR0); + + svr = get_svr(); + ver = SVR_SOC_VER(svr); + major = SVR_MAJ(svr); + minor = SVR_MIN(svr); + + if (cpu_numcores() > 1) { +#ifndef CONFIG_MP + puts("Unicore software on multiprocessor system!!\n" + "To enable mutlticore build define CONFIG_MP\n"); +#endif + } + puts("CPU: "); + + cpu = gd->cpu; + + puts(cpu->name); + + printf(", Version: %d.%d, (0x%08x)\n", major, minor, svr); + puts("Core: "); + + pvr = get_pvr(); + ver = PVR_E600_VER(pvr); + major = PVR_E600_MAJ(pvr); + minor = PVR_E600_MIN(pvr); + + printf("E600 Core %d", (msscr0 & 0x20) ? 1 : 0 ); + if (gur->pordevsr & MPC86xx_PORDEVSR_CORE1TE) + puts("\n Core1Translation Enabled"); + debug(" (MSSCR0=%x, PORDEVSR=%x)", msscr0, gur->pordevsr); + + printf(", Version: %d.%d, (0x%08x)\n", major, minor, pvr); + + get_sys_info(&sysinfo); + + puts("Clock Configuration:\n"); + printf(" CPU:%-4s MHz, ", strmhz(buf1, sysinfo.freqProcessor)); + printf("MPX:%-4s MHz\n", strmhz(buf1, sysinfo.freqSystemBus)); + printf(" DDR:%-4s MHz (%s MT/s data rate), ", + strmhz(buf1, sysinfo.freqSystemBus / 2), + strmhz(buf2, sysinfo.freqSystemBus)); + + if (sysinfo.freqLocalBus > LCRR_CLKDIV) { + printf("LBC:%-4s MHz\n", strmhz(buf1, sysinfo.freqLocalBus)); + } else { + printf("LBC: unknown (LCRR[CLKDIV] = 0x%02lx)\n", + sysinfo.freqLocalBus); + } + + puts("L1: D-cache 32 KB enabled\n"); + puts(" I-cache 32 KB enabled\n"); + + puts("L2: "); + if (get_l2cr() & 0x80000000) { +#if defined(CONFIG_MPC8610) + puts("256"); +#elif defined(CONFIG_MPC8641) + puts("512"); +#endif + puts(" KB enabled\n"); + } else { + puts("Disabled\n"); + } + + return 0; +} + + +void +do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; + volatile ccsr_gur_t *gur = &immap->im_gur; + + /* Attempt board-specific reset */ + board_reset(); + + /* Next try asserting HRESET_REQ */ + out_be32(&gur->rstcr, MPC86xx_RSTCR_HRST_REQ); + + while (1) + ; +} + + +/* + * Get timebase clock frequency + */ +unsigned long +get_tbclk(void) +{ + sys_info_t sys_info; + + get_sys_info(&sys_info); + return (sys_info.freqSystemBus + 3L) / 4L; +} + + +#if defined(CONFIG_WATCHDOG) +void +watchdog_reset(void) +{ +#if defined(CONFIG_MPC8610) + /* + * This actually feed the hard enabled watchdog. + */ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; + volatile ccsr_wdt_t *wdt = &immap->im_wdt; + volatile ccsr_gur_t *gur = &immap->im_gur; + u32 tmp = gur->pordevsr; + + if (tmp & 0x4000) { + wdt->swsrr = 0x556c; + wdt->swsrr = 0xaa39; + } +#endif +} +#endif /* CONFIG_WATCHDOG */ + +/* + * Print out the state of various machine registers. + * Currently prints out LAWs, BR0/OR0, and BATs + */ +void mpc86xx_reginfo(void) +{ + immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; + ccsr_lbc_t *lbc = &immap->im_lbc; + + print_bats(); + print_laws(); + + printf ("Local Bus Controller Registers\n" + "\tBR0\t0x%08X\tOR0\t0x%08X \n", in_be32(&lbc->br0), in_be32(&lbc->or0)); + printf("\tBR1\t0x%08X\tOR1\t0x%08X \n", in_be32(&lbc->br1), in_be32(&lbc->or1)); + printf("\tBR2\t0x%08X\tOR2\t0x%08X \n", in_be32(&lbc->br2), in_be32(&lbc->or2)); + printf("\tBR3\t0x%08X\tOR3\t0x%08X \n", in_be32(&lbc->br3), in_be32(&lbc->or3)); + printf("\tBR4\t0x%08X\tOR4\t0x%08X \n", in_be32(&lbc->br4), in_be32(&lbc->or4)); + printf("\tBR5\t0x%08X\tOR5\t0x%08X \n", in_be32(&lbc->br5), in_be32(&lbc->or5)); + printf("\tBR6\t0x%08X\tOR6\t0x%08X \n", in_be32(&lbc->br6), in_be32(&lbc->or6)); + printf("\tBR7\t0x%08X\tOR7\t0x%08X \n", in_be32(&lbc->br7), in_be32(&lbc->or7)); + +} + +/* + * Set the DDR BATs to reflect the actual size of DDR. + * + * dram_size is the actual size of DDR, in bytes + * + * Note: we assume that CONFIG_MAX_MEM_MAPPED is 2G or smaller as we only + * are using a single BAT to cover DDR. + * + * If this is not true, (e.g. CONFIG_MAX_MEM_MAPPED is 2GB but HID0_XBSEN + * is not defined) then we might have a situation where U-Boot will attempt + * to relocated itself outside of the region mapped by DBAT0. + * This will cause a machine check. + * + * Currently we are limited to power of two sized DDR since we only use a + * single bat. If a non-power of two size is used that is less than + * CONFIG_MAX_MEM_MAPPED u-boot will crash. + * + */ +void setup_ddr_bat(phys_addr_t dram_size) +{ + unsigned long batu, bl; + + bl = TO_BATU_BL(min(dram_size, CONFIG_MAX_MEM_MAPPED)); + + if (BATU_SIZE(bl) != dram_size) { + u64 sz = (u64)dram_size - BATU_SIZE(bl); + print_size(sz, " left unmapped\n"); + } + + batu = bl | BATU_VS | BATU_VP; + write_bat(DBAT0, batu, CONFIG_SYS_DBAT0L); + write_bat(IBAT0, batu, CONFIG_SYS_IBAT0L); +} diff --git a/arch/ppc/cpu/mpc86xx/cpu_init.c b/arch/ppc/cpu/mpc86xx/cpu_init.c new file mode 100644 index 0000000..b4f047d --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/cpu_init.c @@ -0,0 +1,190 @@ +/* + * Copyright 2004,2009 Freescale Semiconductor, Inc. + * Jeff Brown + * Srikanth Srinivasan (srikanth.srinivasan@freescale.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * cpu_init.c - low level cpu init + */ + +#include <config.h> +#include <common.h> +#include <mpc86xx.h> +#include <asm/mmu.h> +#include <asm/fsl_law.h> +#include <asm/mp.h> + +void setup_bats(void); + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Breathe some life into the CPU... + * + * Set up the memory map + * initialize a bunch of registers + */ + +void cpu_init_f(void) +{ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; + volatile ccsr_lbc_t *memctl = &immap->im_lbc; + + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); + + /* Clear initial global data */ + memset ((void *) gd, 0, sizeof (gd_t)); + +#ifdef CONFIG_FSL_LAW + init_laws(); +#endif + + setup_bats(); + + /* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary + * addresses - these have to be modified later when FLASH size + * has been determined + */ + +#if defined(CONFIG_SYS_OR0_REMAP) + memctl->or0 = CONFIG_SYS_OR0_REMAP; +#endif +#if defined(CONFIG_SYS_OR1_REMAP) + memctl->or1 = CONFIG_SYS_OR1_REMAP; +#endif + + /* now restrict to preliminary range */ +#if defined(CONFIG_SYS_BR0_PRELIM) && defined(CONFIG_SYS_OR0_PRELIM) + memctl->br0 = CONFIG_SYS_BR0_PRELIM; + memctl->or0 = CONFIG_SYS_OR0_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR1_PRELIM) && defined(CONFIG_SYS_OR1_PRELIM) + memctl->or1 = CONFIG_SYS_OR1_PRELIM; + memctl->br1 = CONFIG_SYS_BR1_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR2_PRELIM) && defined(CONFIG_SYS_OR2_PRELIM) + memctl->or2 = CONFIG_SYS_OR2_PRELIM; + memctl->br2 = CONFIG_SYS_BR2_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR3_PRELIM) && defined(CONFIG_SYS_OR3_PRELIM) + memctl->or3 = CONFIG_SYS_OR3_PRELIM; + memctl->br3 = CONFIG_SYS_BR3_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR4_PRELIM) && defined(CONFIG_SYS_OR4_PRELIM) + memctl->or4 = CONFIG_SYS_OR4_PRELIM; + memctl->br4 = CONFIG_SYS_BR4_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR5_PRELIM) && defined(CONFIG_SYS_OR5_PRELIM) + memctl->or5 = CONFIG_SYS_OR5_PRELIM; + memctl->br5 = CONFIG_SYS_BR5_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR6_PRELIM) && defined(CONFIG_SYS_OR6_PRELIM) + memctl->or6 = CONFIG_SYS_OR6_PRELIM; + memctl->br6 = CONFIG_SYS_BR6_PRELIM; +#endif + +#if defined(CONFIG_SYS_BR7_PRELIM) && defined(CONFIG_SYS_OR7_PRELIM) + memctl->or7 = CONFIG_SYS_OR7_PRELIM; + memctl->br7 = CONFIG_SYS_BR7_PRELIM; +#endif +#if defined(CONFIG_FSL_DMA) + dma_init(); +#endif + + /* enable the timebase bit in HID0 */ + set_hid0(get_hid0() | 0x4000000); + + /* enable EMCP, SYNCBE | ABE bits in HID1 */ + set_hid1(get_hid1() | 0x80000C00); +} + +/* + * initialize higher level parts of CPU like timers + */ +int cpu_init_r(void) +{ +#if defined(CONFIG_MP) + setup_mp(); +#endif + return 0; +} + +/* Set up BAT registers */ +void setup_bats(void) +{ +#if defined(CONFIG_SYS_DBAT0U) && defined(CONFIG_SYS_DBAT0L) + write_bat(DBAT0, CONFIG_SYS_DBAT0U, CONFIG_SYS_DBAT0L); +#endif +#if defined(CONFIG_SYS_IBAT0U) && defined(CONFIG_SYS_IBAT0L) + write_bat(IBAT0, CONFIG_SYS_IBAT0U, CONFIG_SYS_IBAT0L); +#endif + write_bat(DBAT1, CONFIG_SYS_DBAT1U, CONFIG_SYS_DBAT1L); + write_bat(IBAT1, CONFIG_SYS_IBAT1U, CONFIG_SYS_IBAT1L); + write_bat(DBAT2, CONFIG_SYS_DBAT2U, CONFIG_SYS_DBAT2L); + write_bat(IBAT2, CONFIG_SYS_IBAT2U, CONFIG_SYS_IBAT2L); + write_bat(DBAT3, CONFIG_SYS_DBAT3U, CONFIG_SYS_DBAT3L); + write_bat(IBAT3, CONFIG_SYS_IBAT3U, CONFIG_SYS_IBAT3L); + write_bat(DBAT4, CONFIG_SYS_DBAT4U, CONFIG_SYS_DBAT4L); + write_bat(IBAT4, CONFIG_SYS_IBAT4U, CONFIG_SYS_IBAT4L); + write_bat(DBAT5, CONFIG_SYS_DBAT5U, CONFIG_SYS_DBAT5L); + write_bat(IBAT5, CONFIG_SYS_IBAT5U, CONFIG_SYS_IBAT5L); + write_bat(DBAT6, CONFIG_SYS_DBAT6U, CONFIG_SYS_DBAT6L); + write_bat(IBAT6, CONFIG_SYS_IBAT6U, CONFIG_SYS_IBAT6L); + write_bat(DBAT7, CONFIG_SYS_DBAT7U, CONFIG_SYS_DBAT7L); + write_bat(IBAT7, CONFIG_SYS_IBAT7U, CONFIG_SYS_IBAT7L); + + return; +} + +#ifdef CONFIG_ADDR_MAP +/* Initialize address mapping array */ +void init_addr_map(void) +{ + int i; + ppc_bat_t bat = DBAT0; + phys_size_t size; + unsigned long upper, lower; + + for (i = 0; i < CONFIG_SYS_NUM_ADDR_MAP; i++, bat++) { + if (read_bat(bat, &upper, &lower) != -1) { + if (!BATU_VALID(upper)) + size = 0; + else + size = BATU_SIZE(upper); + addrmap_set_entry(BATU_VADDR(upper), BATL_PADDR(lower), + size, i); + } +#ifdef CONFIG_HIGH_BATS + /* High bats are not contiguous with low BAT numbers */ + if (bat == DBAT3) + bat = DBAT4 - 1; +#endif + } +} +#endif diff --git a/arch/ppc/cpu/mpc86xx/ddr-8641.c b/arch/ppc/cpu/mpc86xx/ddr-8641.c new file mode 100644 index 0000000..b8f2c93 --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/ddr-8641.c @@ -0,0 +1,85 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/fsl_ddr_sdram.h> + +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 4) +#error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL +#endif + +void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, + unsigned int ctrl_num) +{ + unsigned int i; + volatile ccsr_ddr_t *ddr; + + switch (ctrl_num) { + case 0: + ddr = (void *)CONFIG_SYS_MPC86xx_DDR_ADDR; + break; + case 1: + ddr = (void *)CONFIG_SYS_MPC86xx_DDR2_ADDR; + break; + default: + printf("%s unexpected ctrl_num = %u\n", __FUNCTION__, ctrl_num); + return; + } + + for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { + if (i == 0) { + out_be32(&ddr->cs0_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs0_config, regs->cs[i].config); + + } else if (i == 1) { + out_be32(&ddr->cs1_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs1_config, regs->cs[i].config); + + } else if (i == 2) { + out_be32(&ddr->cs2_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs2_config, regs->cs[i].config); + + } else if (i == 3) { + out_be32(&ddr->cs3_bnds, regs->cs[i].bnds); + out_be32(&ddr->cs3_config, regs->cs[i].config); + } + } + + out_be32(&ddr->timing_cfg_3, regs->timing_cfg_3); + out_be32(&ddr->timing_cfg_0, regs->timing_cfg_0); + out_be32(&ddr->timing_cfg_1, regs->timing_cfg_1); + out_be32(&ddr->timing_cfg_2, regs->timing_cfg_2); + out_be32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2); + out_be32(&ddr->sdram_mode, regs->ddr_sdram_mode); + out_be32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2); + out_be32(&ddr->sdram_mode_cntl, regs->ddr_sdram_md_cntl); + out_be32(&ddr->sdram_interval, regs->ddr_sdram_interval); + out_be32(&ddr->sdram_data_init, regs->ddr_data_init); + out_be32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl); + out_be32(&ddr->init_addr, regs->ddr_init_addr); + out_be32(&ddr->init_ext_addr, regs->ddr_init_ext_addr); + + debug("before go\n"); + + /* + * 200 painful micro-seconds must elapse between + * the DDR clock setup and the DDR config enable. + */ + udelay(200); + asm volatile("sync;isync"); + + out_be32(&ddr->sdram_cfg, regs->ddr_sdram_cfg); + + /* + * Poll DDR_SDRAM_CFG_2[D_INIT] bit until auto-data init is done + */ + while (in_be32(&ddr->sdram_cfg_2) & 0x10) { + udelay(10000); /* throttle polling rate */ + } +} diff --git a/arch/ppc/cpu/mpc86xx/fdt.c b/arch/ppc/cpu/mpc86xx/fdt.c new file mode 100644 index 0000000..51f3f4c --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/fdt.c @@ -0,0 +1,60 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#include <common.h> +#include <libfdt.h> +#include <fdt_support.h> +#include <asm/mp.h> + +DECLARE_GLOBAL_DATA_PTR; + +extern void ft_fixup_num_cores(void *blob); + +void ft_cpu_setup(void *blob, bd_t *bd) +{ +#ifdef CONFIG_MP + int off; + u32 bootpg = determine_mp_bootpg(); +#endif + + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "timebase-frequency", bd->bi_busfreq / 4, 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "bus-frequency", bd->bi_busfreq, 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "clock-frequency", bd->bi_intfreq, 1); + do_fixup_by_prop_u32(blob, "device_type", "soc", 4, + "bus-frequency", bd->bi_busfreq, 1); + +#if defined(CONFIG_MPC8641) + do_fixup_by_compat_u32(blob, "fsl,mpc8641-localbus", + "bus-frequency", gd->lbc_clk, 1); +#endif + do_fixup_by_compat_u32(blob, "fsl,elbc", + "bus-frequency", gd->lbc_clk, 1); + + fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize); + +#if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) \ + || defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3) + fdt_fixup_ethernet(blob); +#endif + +#ifdef CONFIG_SYS_NS16550 + do_fixup_by_compat_u32(blob, "ns16550", + "clock-frequency", CONFIG_SYS_NS16550_CLK, 1); +#endif + +#ifdef CONFIG_MP + /* Reserve the boot page so OSes dont use it */ + off = fdt_add_mem_rsv(blob, bootpg, (u64)4096); + if (off < 0) + printf("%s: %s\n", __FUNCTION__, fdt_strerror(off)); +#endif + ft_fixup_num_cores(blob); +} diff --git a/arch/ppc/cpu/mpc86xx/interrupts.c b/arch/ppc/cpu/mpc86xx/interrupts.c new file mode 100644 index 0000000..c78fc72 --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/interrupts.c @@ -0,0 +1,115 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2002 (440 port) + * Scott McNutt, Artesyn Communication Producs, smcnutt@artsyncp.com + * + * (C) Copyright 2003 Motorola Inc. (MPC85xx port) + * Xianghua Xiao (X.Xiao@motorola.com) + * + * (C) Copyright 2004, 2007 Freescale Semiconductor. (MPC86xx Port) + * Jeff Brown + * Srikanth Srinivasan (srikanth.srinivasan@freescale.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc86xx.h> +#include <command.h> +#include <asm/processor.h> + +int interrupt_init_cpu(unsigned long *decrementer_count) +{ + volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; + volatile ccsr_pic_t *pic = &immr->im_pic; + + pic->gcr = MPC86xx_PICGCR_RST; + while (pic->gcr & MPC86xx_PICGCR_RST) + ; + pic->gcr = MPC86xx_PICGCR_MODE; + + *decrementer_count = get_tbclk() / CONFIG_SYS_HZ; + debug("interrupt init: tbclk() = %d MHz, decrementer_count = %ld\n", + (get_tbclk() / 1000000), + *decrementer_count); + +#ifdef CONFIG_INTERRUPTS + + pic->iivpr1 = 0x810001; /* 50220 enable mcm interrupts */ + debug("iivpr1@%x = %x\n", &pic->iivpr1, pic->iivpr1); + + pic->iivpr2 = 0x810002; /* 50240 enable ddr interrupts */ + debug("iivpr2@%x = %x\n", &pic->iivpr2, pic->iivpr2); + + pic->iivpr3 = 0x810003; /* 50260 enable lbc interrupts */ + debug("iivpr3@%x = %x\n", &pic->iivpr3, pic->iivpr3); + +#if defined(CONFIG_PCI1) || defined(CONFIG_PCIE1) + pic->iivpr8 = 0x810008; /* enable pcie1 interrupts */ + debug("iivpr8@%x = %x\n", &pic->iivpr8, pic->iivpr8); +#endif +#if defined(CONFIG_PCI2) || defined(CONFIG_PCIE2) + pic->iivpr9 = 0x810009; /* enable pcie2 interrupts */ + debug("iivpr9@%x = %x\n", &pic->iivpr9, pic->iivpr9); +#endif + + pic->ctpr = 0; /* 40080 clear current task priority register */ +#endif + + return 0; +} + +/* + * timer_interrupt - gets called when the decrementer overflows, + * with interrupts disabled. + * Trivial implementation - no need to be really accurate. + */ +void timer_interrupt_cpu(struct pt_regs *regs) +{ + /* nothing to do here */ +} + +/* + * Install and free a interrupt handler. Not implemented yet. + */ +void irq_install_handler(int vec, interrupt_handler_t *handler, void *arg) +{ +} + +void irq_free_handler(int vec) +{ +} + +/* + * irqinfo - print information about PCI devices,not implemented. + */ +int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + return 0; +} + +/* + * Handle external interrupts + */ +void external_interrupt(struct pt_regs *regs) +{ + puts("external_interrupt (oops!)\n"); +} diff --git a/arch/ppc/cpu/mpc86xx/mp.c b/arch/ppc/cpu/mpc86xx/mp.c new file mode 100644 index 0000000..b4a0faa --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/mp.c @@ -0,0 +1,125 @@ +/* + * Copyright 2008-2010 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/processor.h> +#include <asm/mmu.h> +#include <ioports.h> +#include <lmb.h> +#include <asm/io.h> +#include <asm/mp.h> + +DECLARE_GLOBAL_DATA_PTR; + +int cpu_reset(int nr) +{ + /* dummy function so common/cmd_mp.c will build + * should be implemented in the future, when cpu_release() + * is supported. Be aware there may be a similiar bug + * as exists on MPC85xx w/its PIC having a timing window + * associated to resetting the core */ + return 1; +} + +int cpu_status(int nr) +{ + /* dummy function so common/cmd_mp.c will build */ + return 0; +} + +int cpu_disable(int nr) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR; + volatile ccsr_gur_t *gur = &immap->im_gur; + + switch (nr) { + case 0: + setbits_be32(&gur->devdisr, MPC86xx_DEVDISR_CPU0); + break; + case 1: + setbits_be32(&gur->devdisr, MPC86xx_DEVDISR_CPU1); + break; + default: + printf("Invalid cpu number for disable %d\n", nr); + return 1; + } + + return 0; +} + +int cpu_release(int nr, int argc, char *argv[]) +{ + /* dummy function so common/cmd_mp.c will build + * should be implemented in the future */ + return 1; +} + +u32 determine_mp_bootpg(void) +{ + /* if we have 4G or more of memory, put the boot page at 4Gb-1M */ + if ((u64)gd->ram_size > 0xfffff000) + return (0xfff00000); + + return (gd->ram_size - (1024 * 1024)); +} + +void cpu_mp_lmb_reserve(struct lmb *lmb) +{ + u32 bootpg = determine_mp_bootpg(); + + /* tell u-boot we stole a page */ + lmb_reserve(lmb, bootpg, 4096); +} + +/* + * Copy the code for other cpus to execute into an + * aligned location accessible via BPTR + */ +void setup_mp(void) +{ + extern ulong __secondary_start_page; + ulong fixup = (ulong)&__secondary_start_page; + u32 bootpg = determine_mp_bootpg(); + u32 bootpg_va; + + if (bootpg >= CONFIG_SYS_MAX_DDR_BAT_SIZE) { + /* We're not covered by the DDR mapping, set up BAT */ + write_bat(DBAT7, CONFIG_SYS_SCRATCH_VA | BATU_BL_128K | + BATU_VS | BATU_VP, + bootpg | BATL_PP_RW | BATL_MEMCOHERENCE); + bootpg_va = CONFIG_SYS_SCRATCH_VA; + } else { + bootpg_va = bootpg; + } + + memcpy((void *)bootpg_va, (void *)fixup, 4096); + flush_cache(bootpg_va, 4096); + + /* remove the temporary BAT mapping */ + if (bootpg >= CONFIG_SYS_MAX_DDR_BAT_SIZE) + write_bat(DBAT7, 0, 0); + + /* If the physical location of bootpg is not at fff00000, set BPTR */ + if (bootpg != 0xfff00000) + out_be32((uint *)(CONFIG_SYS_CCSRBAR + 0x20), 0x80000000 | + (bootpg >> 12)); +} diff --git a/arch/ppc/cpu/mpc86xx/release.S b/arch/ppc/cpu/mpc86xx/release.S new file mode 100644 index 0000000..67a6f2b --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/release.S @@ -0,0 +1,167 @@ +/* + * Copyright 2004, 2007, 2008 Freescale Semiconductor. + * Srikanth Srinivasan <srikanth.srinivaan@freescale.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <config.h> +#include <mpc86xx.h> +#include <version.h> + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +/* If this is a multi-cpu system then we need to handle the + * 2nd cpu. The assumption is that the 2nd cpu is being + * held in boot holdoff mode until the 1st cpu unlocks it + * from Linux. We'll do some basic cpu init and then pass + * it to the Linux Reset Vector. + * Sri: Much of this initialization is not required. Linux + * rewrites the bats, and the sprs and also enables the L1 cache. + * + * Core 0 must copy this to a 1M aligned region and set BPTR + * to point to it. + */ + .align 12 +.globl __secondary_start_page +__secondary_start_page: + .space 0x100 /* space over to reset vector loc */ + mfspr r0, MSSCR0 + andi. r0, r0, 0x0020 + rlwinm r0,r0,27,31,31 + mtspr PIR, r0 + + /* Invalidate BATs */ + li r0, 0 + mtspr IBAT0U, r0 + mtspr IBAT1U, r0 + mtspr IBAT2U, r0 + mtspr IBAT3U, r0 + mtspr IBAT4U, r0 + mtspr IBAT5U, r0 + mtspr IBAT6U, r0 + mtspr IBAT7U, r0 + isync + mtspr DBAT0U, r0 + mtspr DBAT1U, r0 + mtspr DBAT2U, r0 + mtspr DBAT3U, r0 + mtspr DBAT4U, r0 + mtspr DBAT5U, r0 + mtspr DBAT6U, r0 + mtspr DBAT7U, r0 + isync + sync + + /* enable extended addressing */ + mfspr r0, HID0 + lis r0, (HID0_HIGH_BAT_EN | HID0_XBSEN | HID0_XAEN)@h + ori r0, r0, (HID0_HIGH_BAT_EN | HID0_XBSEN | HID0_XAEN)@l + mtspr HID0, r0 + sync + isync + +#ifdef CONFIG_SYS_L2 + /* init the L2 cache */ + addis r3, r0, L2_INIT@h + ori r3, r3, L2_INIT@l + sync + mtspr l2cr, r3 +#ifdef CONFIG_ALTIVEC + dssall +#endif + /* invalidate the L2 cache */ + mfspr r3, l2cr + rlwinm. r3, r3, 0, 0, 0 + beq 1f + + mfspr r3, l2cr + rlwinm r3, r3, 0, 1, 31 + +#ifdef CONFIG_ALTIVEC + dssall +#endif + sync + mtspr l2cr, r3 + sync +1: mfspr r3, l2cr + oris r3, r3, L2CR_L2I@h + mtspr l2cr, r3 + +invl2: + mfspr r3, l2cr + andis. r3, r3, L2CR_L2I@h + bne invl2 + sync +#endif + + /* enable and invalidate the data cache */ + mfspr r3, HID0 + li r5, HID0_DCFI|HID0_DLOCK + andc r3, r3, r5 + mtspr HID0, r3 /* no invalidate, unlock */ + ori r3, r3, HID0_DCE + ori r5, r3, HID0_DCFI + mtspr HID0, r5 /* enable + invalidate */ + mtspr HID0, r3 /* enable */ + sync +#ifdef CONFIG_SYS_L2 + sync + lis r3, L2_ENABLE@h + ori r3, r3, L2_ENABLE@l + mtspr l2cr, r3 + isync + sync +#endif + + /* enable and invalidate the instruction cache*/ + mfspr r3, HID0 + li r5, HID0_ICFI|HID0_ILOCK + andc r3, r3, r5 + ori r3, r3, HID0_ICE + ori r5, r3, HID0_ICFI + mtspr HID0, r5 + mtspr HID0, r3 + isync + sync + + /* TBEN in HID0 */ + mfspr r4, HID0 + oris r4, r4, 0x0400 + mtspr HID0, r4 + sync + isync + + /* MCP|SYNCBE|ABE in HID1 */ + mfspr r4, HID1 + oris r4, r4, 0x8000 + ori r4, r4, 0x0C00 + mtspr HID1, r4 + sync + isync + + lis r3, CONFIG_LINUX_RESET_VEC@h + ori r3, r3, CONFIG_LINUX_RESET_VEC@l + mtlr r3 + blr + + /* Never Returns, Running in Linux Now */ diff --git a/arch/ppc/cpu/mpc86xx/speed.c b/arch/ppc/cpu/mpc86xx/speed.c new file mode 100644 index 0000000..64a3479 --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/speed.c @@ -0,0 +1,163 @@ +/* + * Copyright 2004 Freescale Semiconductor. + * Jeff Brown + * Srikanth Srinivasan (srikanth.srinivasan@freescale.com) + * + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc86xx.h> +#include <asm/processor.h> +#include <asm/io.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* used in some defintiions of CONFIG_SYS_CLK_FREQ */ +extern unsigned long get_board_sys_clk(unsigned long dummy); + +void get_sys_info(sys_info_t *sysInfo) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + volatile ccsr_gur_t *gur = &immap->im_gur; + uint plat_ratio, e600_ratio; + uint lcrr_div; + + plat_ratio = (gur->porpllsr) & 0x0000003e; + plat_ratio >>= 1; + + switch (plat_ratio) { + case 0x0: + sysInfo->freqSystemBus = 16 * CONFIG_SYS_CLK_FREQ; + break; + case 0x02: + case 0x03: + case 0x04: + case 0x05: + case 0x06: + case 0x08: + case 0x09: + case 0x0a: + case 0x0c: + case 0x10: + sysInfo->freqSystemBus = plat_ratio * CONFIG_SYS_CLK_FREQ; + break; + default: + sysInfo->freqSystemBus = 0; + break; + } + + e600_ratio = (gur->porpllsr) & 0x003f0000; + e600_ratio >>= 16; + + switch (e600_ratio) { + case 0x10: + sysInfo->freqProcessor = 2 * sysInfo->freqSystemBus; + break; + case 0x19: + sysInfo->freqProcessor = 5 * sysInfo->freqSystemBus / 2; + break; + case 0x20: + sysInfo->freqProcessor = 3 * sysInfo->freqSystemBus; + break; + case 0x39: + sysInfo->freqProcessor = 7 * sysInfo->freqSystemBus / 2; + break; + case 0x28: + sysInfo->freqProcessor = 4 * sysInfo->freqSystemBus; + break; + case 0x1d: + sysInfo->freqProcessor = 9 * sysInfo->freqSystemBus / 2; + break; + default: + sysInfo->freqProcessor = e600_ratio + sysInfo->freqSystemBus; + break; + } + +#if defined(CONFIG_SYS_LBC_LCRR) + /* We will program LCRR to this value later */ + lcrr_div = CONFIG_SYS_LBC_LCRR & LCRR_CLKDIV; +#else + { + volatile ccsr_lbc_t *lbc = &immap->im_lbc; + lcrr_div = in_be32(&lbc->lcrr) & LCRR_CLKDIV; + } +#endif + if (lcrr_div == 2 || lcrr_div == 4 || lcrr_div == 8) { + sysInfo->freqLocalBus = sysInfo->freqSystemBus / (lcrr_div * 2); + } else { + /* In case anyone cares what the unknown value is */ + sysInfo->freqLocalBus = lcrr_div; + } +} + + +/* + * Measure CPU clock speed (core clock GCLK1, GCLK2) + * (Approx. GCLK frequency in Hz) + */ + +int get_clocks(void) +{ + sys_info_t sys_info; + + get_sys_info(&sys_info); + gd->cpu_clk = sys_info.freqProcessor; + gd->bus_clk = sys_info.freqSystemBus; + gd->lbc_clk = sys_info.freqLocalBus; + + /* + * The base clock for I2C depends on the actual SOC. Unfortunately, + * there is no pattern that can be used to determine the frequency, so + * the only choice is to look up the actual SOC number and use the value + * for that SOC. This information is taken from application note + * AN2919. + */ +#ifdef CONFIG_MPC8610 + gd->i2c1_clk = sys_info.freqSystemBus; +#else + gd->i2c1_clk = sys_info.freqSystemBus / 2; +#endif + gd->i2c2_clk = gd->i2c1_clk; + + if (gd->cpu_clk != 0) + return 0; + else + return 1; +} + + +/* + * get_bus_freq + * Return system bus freq in Hz + */ + +ulong get_bus_freq(ulong dummy) +{ + ulong val; + sys_info_t sys_info; + + get_sys_info(&sys_info); + val = sys_info.freqSystemBus; + + return val; +} diff --git a/arch/ppc/cpu/mpc86xx/start.S b/arch/ppc/cpu/mpc86xx/start.S new file mode 100644 index 0000000..ed1e4ca --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/start.S @@ -0,0 +1,957 @@ +/* + * Copyright 2004, 2007 Freescale Semiconductor. + * Srikanth Srinivasan <srikanth.srinivaan@freescale.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* U-Boot - Startup Code for 86xx PowerPC based Embedded Boards + * + * + * The processor starts at 0xfff00100 and the code is executed + * from flash. The code is organized to be at an other address + * in memory, but as long we don't jump around before relocating. + * board_init lies at a quite high address and when the cpu has + * jumped there, everything is ok. + */ +#include <config.h> +#include <mpc86xx.h> +#include <timestamp.h> +#include <version.h> + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +/* + * Need MSR_DR | MSR_IR enabled to access I/O (printf) in exceptions + */ + +/* + * Set up GOT: Global Offset Table + * + * Use r12 to access the GOT + */ + START_GOT + GOT_ENTRY(_GOT2_TABLE_) + GOT_ENTRY(_FIXUP_TABLE_) + + GOT_ENTRY(_start) + GOT_ENTRY(_start_of_vectors) + GOT_ENTRY(_end_of_vectors) + GOT_ENTRY(transfer_to_handler) + + GOT_ENTRY(__init_end) + GOT_ENTRY(_end) + GOT_ENTRY(__bss_start) + END_GOT + +/* + * r3 - 1st arg to board_init(): IMMP pointer + * r4 - 2nd arg to board_init(): boot flag + */ + .text + .long 0x27051956 /* U-Boot Magic Number */ + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" + .ascii CONFIG_IDENT_STRING, "\0" + + . = EXC_OFF_SYS_RESET + .globl _start +_start: + li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */ + b boot_cold + sync + + . = EXC_OFF_SYS_RESET + 0x10 + + .globl _start_warm +_start_warm: + li r21, BOOTFLAG_WARM /* Software reboot */ + b boot_warm + sync + + /* the boot code is located below the exception table */ + + .globl _start_of_vectors +_start_of_vectors: + +/* Machine check */ + STD_EXCEPTION(0x200, MachineCheck, MachineCheckException) + +/* Data Storage exception. */ + STD_EXCEPTION(0x300, DataStorage, UnknownException) + +/* Instruction Storage exception. */ + STD_EXCEPTION(0x400, InstStorage, UnknownException) + +/* External Interrupt exception. */ + STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) + +/* Alignment exception. */ + . = 0x600 +Alignment: + EXCEPTION_PROLOG(SRR0, SRR1) + mfspr r4,DAR + stw r4,_DAR(r21) + mfspr r5,DSISR + stw r5,_DSISR(r21) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) + +/* Program check exception */ + . = 0x700 +ProgramCheck: + EXCEPTION_PROLOG(SRR0, SRR1) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, + MSR_KERNEL, COPY_EE) + + STD_EXCEPTION(0x800, FPUnavailable, UnknownException) + + /* I guess we could implement decrementer, and may have + * to someday for timekeeping. + */ + STD_EXCEPTION(0x900, Decrementer, timer_interrupt) + STD_EXCEPTION(0xa00, Trap_0a, UnknownException) + STD_EXCEPTION(0xb00, Trap_0b, UnknownException) + STD_EXCEPTION(0xc00, SystemCall, UnknownException) + STD_EXCEPTION(0xd00, SingleStep, UnknownException) + STD_EXCEPTION(0xe00, Trap_0e, UnknownException) + STD_EXCEPTION(0xf00, Trap_0f, UnknownException) + STD_EXCEPTION(0x1000, SoftEmu, SoftEmuException) + STD_EXCEPTION(0x1100, InstructionTLBMiss, UnknownException) + STD_EXCEPTION(0x1200, DataTLBMiss, UnknownException) + STD_EXCEPTION(0x1300, InstructionTLBError, UnknownException) + STD_EXCEPTION(0x1400, DataTLBError, UnknownException) + STD_EXCEPTION(0x1500, Reserved5, UnknownException) + STD_EXCEPTION(0x1600, Reserved6, UnknownException) + STD_EXCEPTION(0x1700, Reserved7, UnknownException) + STD_EXCEPTION(0x1800, Reserved8, UnknownException) + STD_EXCEPTION(0x1900, Reserved9, UnknownException) + STD_EXCEPTION(0x1a00, ReservedA, UnknownException) + STD_EXCEPTION(0x1b00, ReservedB, UnknownException) + STD_EXCEPTION(0x1c00, DataBreakpoint, UnknownException) + STD_EXCEPTION(0x1d00, InstructionBreakpoint, UnknownException) + STD_EXCEPTION(0x1e00, PeripheralBreakpoint, UnknownException) + STD_EXCEPTION(0x1f00, DevPortBreakpoint, UnknownException) + + .globl _end_of_vectors +_end_of_vectors: + + . = 0x2000 + +boot_cold: +boot_warm: + /* + * NOTE: Only Cpu 0 will ever come here. Other cores go to an + * address specified by the BPTR + */ +1: +#ifdef CONFIG_SYS_RAMBOOT + /* disable everything */ + li r0, 0 + mtspr HID0, r0 + sync + mtmsr 0 +#endif + + /* Invalidate BATs */ + bl invalidate_bats + sync + /* Invalidate all of TLB before MMU turn on */ + bl clear_tlbs + sync + +#ifdef CONFIG_SYS_L2 + /* init the L2 cache */ + lis r3, L2_INIT@h + ori r3, r3, L2_INIT@l + mtspr l2cr, r3 + /* invalidate the L2 cache */ + bl l2cache_invalidate + sync +#endif + + /* + * Calculate absolute address in FLASH and jump there + *------------------------------------------------------*/ + lis r3, CONFIG_SYS_MONITOR_BASE_EARLY@h + ori r3, r3, CONFIG_SYS_MONITOR_BASE_EARLY@l + addi r3, r3, in_flash - _start + EXC_OFF_SYS_RESET + mtlr r3 + blr + +in_flash: + /* let the C-code set up the rest */ + /* */ + /* Be careful to keep code relocatable ! */ + /*------------------------------------------------------*/ + /* perform low-level init */ + + /* enable extended addressing */ + bl enable_ext_addr + + /* setup the bats */ + bl early_bats + + /* + * Cache must be enabled here for stack-in-cache trick. + * This means we need to enable the BATS. + * Cache should be turned on after BATs, since by default + * everything is write-through. + */ + + /* enable address translation */ + mfmsr r5 + ori r5, r5, (MSR_IR | MSR_DR) + lis r3,addr_trans_enabled@h + ori r3, r3, addr_trans_enabled@l + mtspr SPRN_SRR0,r3 + mtspr SPRN_SRR1,r5 + rfi + +addr_trans_enabled: + /* enable and invalidate the data cache */ +/* bl l1dcache_enable */ + bl dcache_enable + sync + +#if 1 + bl icache_enable +#endif + +#ifdef CONFIG_SYS_INIT_RAM_LOCK + bl lock_ram_in_cache + sync +#endif + +#if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR) + bl setup_ccsrbar +#endif + + /* set up the stack pointer in our newly created + * cache-ram (r1) */ + lis r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@h + ori r1, r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@l + + li r0, 0 /* Make room for stack frame header and */ + stwu r0, -4(r1) /* clear final stack frame so that */ + stwu r0, -4(r1) /* stack backtraces terminate cleanly */ + + GET_GOT /* initialize GOT access */ + + /* run low-level CPU init code (from Flash) */ + bl cpu_init_f + sync + +#ifdef RUN_DIAG + + /* Load PX_AUX register address in r4 */ + lis r4, PIXIS_BASE@h + ori r4, r4, 0x6 + /* Load contents of PX_AUX in r3 bits 24 to 31*/ + lbz r3, 0(r4) + + /* Mask and obtain the bit in r3 */ + rlwinm. r3, r3, 0, 24, 24 + /* If not zero, jump and continue with u-boot */ + bne diag_done + + /* Load back contents of PX_AUX in r3 bits 24 to 31 */ + lbz r3, 0(r4) + /* Set the MSB of the register value */ + ori r3, r3, 0x80 + /* Write value in r3 back to PX_AUX */ + stb r3, 0(r4) + + /* Get the address to jump to in r3*/ + lis r3, CONFIG_SYS_DIAG_ADDR@h + ori r3, r3, CONFIG_SYS_DIAG_ADDR@l + + /* Load the LR with the branch address */ + mtlr r3 + + /* Branch to diagnostic */ + blr + +diag_done: +#endif + +/* bl l2cache_enable */ + mr r3, r21 + + /* r3: BOOTFLAG */ + /* run 1st part of board init code (from Flash) */ + bl board_init_f + sync + + /* NOTREACHED */ + + .globl invalidate_bats +invalidate_bats: + + li r0, 0 + /* invalidate BATs */ + mtspr IBAT0U, r0 + mtspr IBAT1U, r0 + mtspr IBAT2U, r0 + mtspr IBAT3U, r0 + mtspr IBAT4U, r0 + mtspr IBAT5U, r0 + mtspr IBAT6U, r0 + mtspr IBAT7U, r0 + + isync + mtspr DBAT0U, r0 + mtspr DBAT1U, r0 + mtspr DBAT2U, r0 + mtspr DBAT3U, r0 + mtspr DBAT4U, r0 + mtspr DBAT5U, r0 + mtspr DBAT6U, r0 + mtspr DBAT7U, r0 + + isync + sync + blr + +/* + * early_bats: + * + * Set up bats needed early on - this is usually the BAT for the + * stack-in-cache, the Flash, and CCSR space + */ + .globl early_bats +early_bats: + /* IBAT 3 */ + lis r4, CONFIG_SYS_IBAT3L@h + ori r4, r4, CONFIG_SYS_IBAT3L@l + lis r3, CONFIG_SYS_IBAT3U@h + ori r3, r3, CONFIG_SYS_IBAT3U@l + mtspr IBAT3L, r4 + mtspr IBAT3U, r3 + isync + + /* DBAT 3 */ + lis r4, CONFIG_SYS_DBAT3L@h + ori r4, r4, CONFIG_SYS_DBAT3L@l + lis r3, CONFIG_SYS_DBAT3U@h + ori r3, r3, CONFIG_SYS_DBAT3U@l + mtspr DBAT3L, r4 + mtspr DBAT3U, r3 + isync + + /* IBAT 5 */ + lis r4, CONFIG_SYS_IBAT5L@h + ori r4, r4, CONFIG_SYS_IBAT5L@l + lis r3, CONFIG_SYS_IBAT5U@h + ori r3, r3, CONFIG_SYS_IBAT5U@l + mtspr IBAT5L, r4 + mtspr IBAT5U, r3 + isync + + /* DBAT 5 */ + lis r4, CONFIG_SYS_DBAT5L@h + ori r4, r4, CONFIG_SYS_DBAT5L@l + lis r3, CONFIG_SYS_DBAT5U@h + ori r3, r3, CONFIG_SYS_DBAT5U@l + mtspr DBAT5L, r4 + mtspr DBAT5U, r3 + isync + + /* IBAT 6 */ + lis r4, CONFIG_SYS_IBAT6L_EARLY@h + ori r4, r4, CONFIG_SYS_IBAT6L_EARLY@l + lis r3, CONFIG_SYS_IBAT6U_EARLY@h + ori r3, r3, CONFIG_SYS_IBAT6U_EARLY@l + mtspr IBAT6L, r4 + mtspr IBAT6U, r3 + isync + + /* DBAT 6 */ + lis r4, CONFIG_SYS_DBAT6L_EARLY@h + ori r4, r4, CONFIG_SYS_DBAT6L_EARLY@l + lis r3, CONFIG_SYS_DBAT6U_EARLY@h + ori r3, r3, CONFIG_SYS_DBAT6U_EARLY@l + mtspr DBAT6L, r4 + mtspr DBAT6U, r3 + isync + +#if(CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR) + /* IBAT 7 */ + lis r4, CONFIG_SYS_CCSR_DEFAULT_IBATL@h + ori r4, r4, CONFIG_SYS_CCSR_DEFAULT_IBATL@l + lis r3, CONFIG_SYS_CCSR_DEFAULT_IBATU@h + ori r3, r3, CONFIG_SYS_CCSR_DEFAULT_IBATU@l + mtspr IBAT7L, r4 + mtspr IBAT7U, r3 + isync + + /* DBAT 7 */ + lis r4, CONFIG_SYS_CCSR_DEFAULT_DBATL@h + ori r4, r4, CONFIG_SYS_CCSR_DEFAULT_DBATL@l + lis r3, CONFIG_SYS_CCSR_DEFAULT_DBATU@h + ori r3, r3, CONFIG_SYS_CCSR_DEFAULT_DBATU@l + mtspr DBAT7L, r4 + mtspr DBAT7U, r3 + isync +#endif + blr + + .globl clear_tlbs +clear_tlbs: + addis r3, 0, 0x0000 + addis r5, 0, 0x4 + isync +tlblp: + tlbie r3 + sync + addi r3, r3, 0x1000 + cmp 0, 0, r3, r5 + blt tlblp + blr + + .globl disable_addr_trans +disable_addr_trans: + /* disable address translation */ + mflr r4 + mfmsr r3 + andi. r0, r3, (MSR_IR | MSR_DR) + beqlr + andc r3, r3, r0 + mtspr SRR0, r4 + mtspr SRR1, r3 + rfi + +/* + * This code finishes saving the registers to the exception frame + * and jumps to the appropriate handler for the exception. + * Register r21 is pointer into trap frame, r1 has new stack pointer. + */ + .globl transfer_to_handler +transfer_to_handler: + stw r22,_NIP(r21) + lis r22,MSR_POW@h + andc r23,r23,r22 + stw r23,_MSR(r21) + SAVE_GPR(7, r21) + SAVE_4GPRS(8, r21) + SAVE_8GPRS(12, r21) + SAVE_8GPRS(24, r21) + mflr r23 + andi. r24,r23,0x3f00 /* get vector offset */ + stw r24,TRAP(r21) + li r22,0 + stw r22,RESULT(r21) + mtspr SPRG2,r22 /* r1 is now kernel sp */ + lwz r24,0(r23) /* virtual address of handler */ + lwz r23,4(r23) /* where to go when done */ + mtspr SRR0,r24 + mtspr SRR1,r20 + mtlr r23 + SYNC + rfi /* jump to handler, enable MMU */ + +int_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SRR0,r2 + mtspr SRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfi + + .globl dc_read +dc_read: + blr + + .globl get_pvr +get_pvr: + mfspr r3, PVR + blr + + .globl get_svr +get_svr: + mfspr r3, SVR + blr + + +/* + * Function: in8 + * Description: Input 8 bits + */ + .globl in8 +in8: + lbz r3,0x0000(r3) + blr + +/* + * Function: out8 + * Description: Output 8 bits + */ + .globl out8 +out8: + stb r4,0x0000(r3) + blr + +/* + * Function: out16 + * Description: Output 16 bits + */ + .globl out16 +out16: + sth r4,0x0000(r3) + blr + +/* + * Function: out16r + * Description: Byte reverse and output 16 bits + */ + .globl out16r +out16r: + sthbrx r4,r0,r3 + blr + +/* + * Function: out32 + * Description: Output 32 bits + */ + .globl out32 +out32: + stw r4,0x0000(r3) + blr + +/* + * Function: out32r + * Description: Byte reverse and output 32 bits + */ + .globl out32r +out32r: + stwbrx r4,r0,r3 + blr + +/* + * Function: in16 + * Description: Input 16 bits + */ + .globl in16 +in16: + lhz r3,0x0000(r3) + blr + +/* + * Function: in16r + * Description: Input 16 bits and byte reverse + */ + .globl in16r +in16r: + lhbrx r3,r0,r3 + blr + +/* + * Function: in32 + * Description: Input 32 bits + */ + .globl in32 +in32: + lwz 3,0x0000(3) + blr + +/* + * Function: in32r + * Description: Input 32 bits and byte reverse + */ + .globl in32r +in32r: + lwbrx r3,r0,r3 + blr + +/* + * void relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * r3 = dest + * r4 = src + * r5 = length in bytes + * r6 = cachelinesize + */ + .globl relocate_code +relocate_code: + + mr r1, r3 /* Set new stack pointer */ + mr r9, r4 /* Save copy of Global Data pointer */ + mr r10, r5 /* Save copy of Destination Address */ + + GET_GOT + mr r3, r5 /* Destination Address */ + lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ + ori r4, r4, CONFIG_SYS_MONITOR_BASE@l + lwz r5, GOT(__init_end) + sub r5, r5, r4 + li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */ + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address + * + * Offset: + */ + sub r15, r10, r4 + + /* First our own GOT */ + add r12, r12, r15 + /* then the one used by the C code */ + add r30, r30, r15 + + /* + * Now relocate code + */ + cmplw cr1,r3,r4 + addi r0,r5,3 + srwi. r0,r0,2 + beq cr1,4f /* In place copy is not necessary */ + beq 7f /* Protect against 0 count */ + mtctr r0 + bge cr1,2f + + la r8,-4(r4) + la r7,-4(r3) +1: lwzu r0,4(r8) + stwu r0,4(r7) + bdnz 1b + b 4f + +2: slwi r0,r0,2 + add r8,r4,r0 + add r7,r3,r0 +3: lwzu r0,-4(r8) + stwu r0,-4(r7) + bdnz 3b +/* + * Now flush the cache: note that we must start from a cache aligned + * address. Otherwise we might miss one cache line. + */ +4: cmpwi r6,0 + add r5,r3,r5 + beq 7f /* Always flush prefetch queue in any case */ + subi r0,r6,1 + andc r3,r3,r0 + mr r4,r3 +5: dcbst 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 5b + sync /* Wait for all dcbst to complete on bus */ + mr r4,r3 +6: icbi 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 6b +7: sync /* Wait for all icbi to complete on bus */ + isync + +/* + * We are done. Do not return, instead branch to second part of board + * initialization, now running from RAM. + */ + addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET + mtlr r0 + blr + +in_ram: + /* + * Relocation Function, r12 point to got2+0x8000 + * + * Adjust got2 pointers, no need to check for 0, this code + * already puts a few entries in the table. + */ + li r0,__got2_entries@sectoff@l + la r3,GOT(_GOT2_TABLE_) + lwz r11,GOT(_GOT2_TABLE_) + mtctr r0 + sub r11,r3,r11 + addi r3,r3,-4 +1: lwzu r0,4(r3) + cmpwi r0,0 + beq- 2f + add r0,r0,r11 + stw r0,0(r3) +2: bdnz 1b + + /* + * Now adjust the fixups and the pointers to the fixups + * in case we need to move ourselves again. + */ + li r0,__fixup_entries@sectoff@l + lwz r3,GOT(_FIXUP_TABLE_) + cmpwi r0,0 + mtctr r0 + addi r3,r3,-4 + beq 4f +3: lwzu r4,4(r3) + lwzux r0,r4,r11 + add r0,r0,r11 + stw r10,0(r3) + stw r0,0(r4) + bdnz 3b +4: +/* clear_bss: */ + /* + * Now clear BSS segment + */ + lwz r3,GOT(__bss_start) + lwz r4,GOT(_end) + + cmplw 0, r3, r4 + beq 6f + + li r0, 0 +5: + stw r0, 0(r3) + addi r3, r3, 4 + cmplw 0, r3, r4 + bne 5b +6: + mr r3, r9 /* Init Date pointer */ + mr r4, r10 /* Destination Address */ + bl board_init_r + + /* not reached - end relocate_code */ +/*-----------------------------------------------------------------------*/ + + /* + * Copy exception vector code to low memory + * + * r3: dest_addr + * r7: source address, r8: end address, r9: target address + */ + .globl trap_init +trap_init: + mflr r4 /* save link register */ + GET_GOT + lwz r7, GOT(_start) + lwz r8, GOT(_end_of_vectors) + + li r9, 0x100 /* reset vector always at 0x100 */ + + cmplw 0, r7, r8 + bgelr /* return if r7>=r8 - just in case */ +1: + lwz r0, 0(r7) + stw r0, 0(r9) + addi r7, r7, 4 + addi r9, r9, 4 + cmplw 0, r7, r8 + bne 1b + + /* + * relocate `hdlr' and `int_return' entries + */ + li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET + li r8, Alignment - _start + EXC_OFF_SYS_RESET +2: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 2b + + li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET + li r8, SystemCall - _start + EXC_OFF_SYS_RESET +3: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 3b + + li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET + li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET +4: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 4b + + /* enable execptions from RAM vectors */ + mfmsr r7 + li r8,MSR_IP + andc r7,r7,r8 + ori r7,r7,MSR_ME /* Enable Machine Check */ + mtmsr r7 + + mtlr r4 /* restore link register */ + blr + +.globl enable_ext_addr +enable_ext_addr: + mfspr r0, HID0 + lis r0, (HID0_HIGH_BAT_EN | HID0_XBSEN | HID0_XAEN)@h + ori r0, r0, (HID0_HIGH_BAT_EN | HID0_XBSEN | HID0_XAEN)@l + mtspr HID0, r0 + sync + isync + blr + +#if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR) +.globl setup_ccsrbar +setup_ccsrbar: + /* Special sequence needed to update CCSRBAR itself */ + lis r4, CONFIG_SYS_CCSRBAR_DEFAULT@h + ori r4, r4, CONFIG_SYS_CCSRBAR_DEFAULT@l + + lis r5, CONFIG_SYS_CCSRBAR_PHYS_LOW@h + ori r5, r5, CONFIG_SYS_CCSRBAR_PHYS_LOW@l + srwi r5,r5,12 + li r6, CONFIG_SYS_CCSRBAR_PHYS_HIGH@l + rlwimi r5,r6,20,8,11 + stw r5, 0(r4) /* Store physical value of CCSR */ + isync + + lis r5, TEXT_BASE@h + ori r5,r5,TEXT_BASE@l + lwz r5, 0(r5) + isync + + /* Use VA of CCSR to do read */ + lis r3, CONFIG_SYS_CCSRBAR@h + lwz r5, CONFIG_SYS_CCSRBAR@l(r3) + isync + + blr +#endif + +#ifdef CONFIG_SYS_INIT_RAM_LOCK +lock_ram_in_cache: + /* Allocate Initial RAM in data cache. + */ + lis r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@h + ori r3, r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@l + li r4, ((CONFIG_SYS_INIT_RAM_END & ~31) + \ + (CONFIG_SYS_INIT_RAM_ADDR & 31) + 31) / 32 + mtctr r4 +1: + dcbz r0, r3 + addi r3, r3, 32 + bdnz 1b +#if 1 +/* Lock the data cache */ + mfspr r0, HID0 + ori r0, r0, 0x1000 + sync + mtspr HID0, r0 + sync + blr +#endif +#if 0 + /* Lock the first way of the data cache */ + mfspr r0, LDSTCR + ori r0, r0, 0x0080 +#if defined(CONFIG_ALTIVEC) + dssall +#endif + sync + mtspr LDSTCR, r0 + sync + isync + blr +#endif + +.globl unlock_ram_in_cache +unlock_ram_in_cache: + /* invalidate the INIT_RAM section */ + lis r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@h + ori r3, r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@l + li r4, ((CONFIG_SYS_INIT_RAM_END & ~31) + \ + (CONFIG_SYS_INIT_RAM_ADDR & 31) + 31) / 32 + mtctr r4 +1: icbi r0, r3 + addi r3, r3, 32 + bdnz 1b + sync /* Wait for all icbi to complete on bus */ + isync +#if 1 +/* Unlock the data cache and invalidate it */ + mfspr r0, HID0 + li r3,0x1000 + andc r0,r0,r3 + li r3,0x0400 + or r0,r0,r3 + sync + mtspr HID0, r0 + sync + blr +#endif +#if 0 + /* Unlock the first way of the data cache */ + mfspr r0, LDSTCR + li r3,0x0080 + andc r0,r0,r3 +#ifdef CONFIG_ALTIVEC + dssall +#endif + sync + mtspr LDSTCR, r0 + sync + isync + li r3,0x0400 + or r0,r0,r3 + sync + mtspr HID0, r0 + sync + blr +#endif +#endif diff --git a/arch/ppc/cpu/mpc86xx/traps.c b/arch/ppc/cpu/mpc86xx/traps.c new file mode 100644 index 0000000..406403e --- /dev/null +++ b/arch/ppc/cpu/mpc86xx/traps.c @@ -0,0 +1,233 @@ +/* + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * Modified by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras (paulus@cs.anu.edu.au) + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * This file handles the architecture-dependent parts of hardware exceptions + */ + +#include <common.h> +#include <command.h> +#include <kgdb.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* Returns 0 if exception not found and fixup otherwise. */ +extern unsigned long search_exception_table(unsigned long); + +/* + * End of addressable memory. This may be less than the actual + * amount of memory on the system if we're unable to keep all + * the memory mapped in. + */ +extern ulong get_effective_memsize(void); +#define END_OF_MEM (gd->bd->bi_memstart + get_effective_memsize()) + +/* + * Trap & Exception support + */ + +void +print_backtrace(unsigned long *sp) +{ + int cnt = 0; + unsigned long i; + + printf("Call backtrace: "); + while (sp) { + if ((uint) sp > END_OF_MEM) + break; + + i = sp[1]; + if (cnt++ % 7 == 0) + printf("\n"); + printf("%08lX ", i); + if (cnt > 32) + break; + sp = (unsigned long *)*sp; + } + printf("\n"); +} + +void +show_regs(struct pt_regs *regs) +{ + int i; + + printf("NIP: %08lX XER: %08lX LR: %08lX REGS:" + " %p TRAP: %04lx DAR: %08lX\n", + regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); + printf("MSR: %08lx EE: %01x PR: %01x FP:" + " %01x ME: %01x IR/DR: %01x%01x\n", + regs->msr, regs->msr & MSR_EE ? 1 : 0, + regs->msr & MSR_PR ? 1 : 0, regs->msr & MSR_FP ? 1 : 0, + regs->msr & MSR_ME ? 1 : 0, regs->msr & MSR_IR ? 1 : 0, + regs->msr & MSR_DR ? 1 : 0); + + printf("\n"); + for (i = 0; i < 32; i++) { + if ((i % 8) == 0) { + printf("GPR%02d: ", i); + } + + printf("%08lX ", regs->gpr[i]); + if ((i % 8) == 7) { + printf("\n"); + } + } +} + + +void +_exception(int signr, struct pt_regs *regs) +{ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Exception in kernel pc %lx signal %d", regs->nip, signr); +} + +void +MachineCheckException(struct pt_regs *regs) +{ + unsigned long fixup; + + /* Probing PCI using config cycles cause this exception + * when a device is not present. Catch it and return to + * the PCI exception handler. + */ + if ((fixup = search_exception_table(regs->nip)) != 0) { + regs->nip = fixup; + return; + } + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler) (regs)) + return; +#endif + + printf("Machine check in kernel mode.\n"); + printf("Caused by (from msr): "); + printf("regs %p ", regs); + switch ( regs->msr & 0x001F0000) { + case (0x80000000>>11): + printf("MSS error. MSSSR0: %08x\n", mfspr(SPRN_MSSSR0)); + break; + case (0x80000000>>12): + printf("Machine check signal - probably due to mm fault\n" + "with mmu off\n"); + break; + case (0x80000000 >> 13): + printf("Transfer error ack signal\n"); + break; + case (0x80000000 >> 14): + printf("Data parity signal\n"); + break; + case (0x80000000 >> 15): + printf("Address parity signal\n"); + break; + default: + printf("Unknown values in msr\n"); + } + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("machine check"); +} + +void +AlignmentException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler) (regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Alignment Exception"); +} + +void +ProgramCheckException(struct pt_regs *regs) +{ + unsigned char *p = regs ? (unsigned char *)(regs->nip) : NULL; + int i, j; + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler) (regs)) + return; +#endif + show_regs(regs); + + p = (unsigned char *)((unsigned long)p & 0xFFFFFFE0); + p -= 32; + for (i = 0; i < 256; i += 16) { + printf("%08x: ", (unsigned int)p + i); + for (j = 0; j < 16; j++) { + printf("%02x ", p[i + j]); + } + printf("\n"); + } + + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Program Check Exception"); +} + +void +SoftEmuException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler) (regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Software Emulation Exception"); +} + +void +UnknownException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler) (regs)) + return; +#endif + printf("UnknownException regs@%lx\n", (ulong)regs); + printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", + regs->nip, regs->msr, regs->trap); + _exception(0, regs); +} + +/* + * Probe an address by reading. + * If not present, return -1, + * otherwise return 0. + */ +int +addr_probe(uint *addr) +{ + return 0; +} diff --git a/arch/ppc/cpu/mpc8xx/Makefile b/arch/ppc/cpu/mpc8xx/Makefile new file mode 100644 index 0000000..5f70459 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/Makefile @@ -0,0 +1,66 @@ +# +# (C) Copyright 2000-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +# CFLAGS += -DET_DEBUG + +LIB = $(obj)lib$(CPU).a + +START-y += start.o +START-y += kgdb.o +COBJS-y += bedbug_860.o +COBJS-y += commproc.o +COBJS-y += cpu.o +COBJS-y += cpu_init.o +COBJS-y += fec.o +COBJS-$(CONFIG_OF_LIBFDT) += fdt.o +COBJS-y += i2c.o +COBJS-y += interrupts.o +COBJS-y += lcd.o +COBJS-y += scc.o +COBJS-y += serial.o +COBJS-y += speed.o +COBJS-y += spi.o +COBJS-y += traps.o +COBJS-y += upatch.o +COBJS-y += video.o +SOBJS-y += plprcr_write.o + +SRCS := $(START-y:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) +START := $(addprefix $(obj),$(START-y)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) $(obj)kgdb.o + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/ppc/cpu/mpc8xx/bedbug_860.c b/arch/ppc/cpu/mpc8xx/bedbug_860.c new file mode 100644 index 0000000..0308bbb --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/bedbug_860.c @@ -0,0 +1,316 @@ +/* + * Bedbug Functions specific to the MPC860 chip + */ + +#include <common.h> +#include <command.h> +#include <linux/ctype.h> +#include <bedbug/bedbug.h> +#include <bedbug/regs.h> +#include <bedbug/ppc.h> +#include <bedbug/type.h> + +#if defined(CONFIG_CMD_BEDBUG) && defined(CONFIG_8xx) + +#define MAX_BREAK_POINTS 2 + +extern CPU_DEBUG_CTX bug_ctx; + +void bedbug860_init __P((void)); +void bedbug860_do_break __P((cmd_tbl_t*,int,int,char*[])); +void bedbug860_break_isr __P((struct pt_regs*)); +int bedbug860_find_empty __P((void)); +int bedbug860_set __P((int,unsigned long)); +int bedbug860_clear __P((int)); + + +/* ====================================================================== + * Initialize the global bug_ctx structure for the MPC860. Clear all + * of the breakpoints. + * ====================================================================== */ + +void bedbug860_init( void ) +{ + int i; + /* -------------------------------------------------- */ + + bug_ctx.hw_debug_enabled = 0; + bug_ctx.stopped = 0; + bug_ctx.current_bp = 0; + bug_ctx.regs = NULL; + + bug_ctx.do_break = bedbug860_do_break; + bug_ctx.break_isr = bedbug860_break_isr; + bug_ctx.find_empty = bedbug860_find_empty; + bug_ctx.set = bedbug860_set; + bug_ctx.clear = bedbug860_clear; + + for( i = 1; i <= MAX_BREAK_POINTS; ++i ) + (*bug_ctx.clear)( i ); + + puts ("BEDBUG:ready\n"); + return; +} /* bedbug_init_breakpoints */ + + + +/* ====================================================================== + * Set/clear/show one of the hardware breakpoints for the 860. The "off" + * string will disable a specific breakpoint. The "show" string will + * display the current breakpoints. Otherwise an address will set a + * breakpoint at that address. Setting a breakpoint uses the CPU-specific + * set routine which will assign a breakpoint number. + * ====================================================================== */ + +void bedbug860_do_break (cmd_tbl_t *cmdtp, int flag, int argc, + char *argv[]) +{ + long addr = 0; /* Address to break at */ + int which_bp; /* Breakpoint number */ + /* -------------------------------------------------- */ + + if (argc < 2) + { + cmd_usage(cmdtp); + return; + } + + /* Turn off a breakpoint */ + + if( strcmp( argv[ 1 ], "off" ) == 0 ) + { + if( bug_ctx.hw_debug_enabled == 0 ) + { + printf( "No breakpoints enabled\n" ); + return; + } + + which_bp = simple_strtoul( argv[ 2 ], NULL, 10 ); + + if( bug_ctx.clear ) + (*bug_ctx.clear)( which_bp ); + + printf( "Breakpoint %d removed\n", which_bp ); + return; + } + + /* Show a list of breakpoints */ + + if( strcmp( argv[ 1 ], "show" ) == 0 ) + { + for( which_bp = 1; which_bp <= MAX_BREAK_POINTS; ++which_bp ) + { + + switch( which_bp ) + { + case 1: addr = GET_CMPA(); break; + case 2: addr = GET_CMPB(); break; + case 3: addr = GET_CMPC(); break; + case 4: addr = GET_CMPD(); break; + } + + printf( "Breakpoint [%d]: ", which_bp ); + if( addr == 0 ) + printf( "NOT SET\n" ); + else + disppc( (unsigned char *)addr, 0, 1, bedbug_puts, F_RADHEX ); + } + return; + } + + /* Set a breakpoint at the address */ + + if( !isdigit( argv[ 1 ][ 0 ])) + { + cmd_usage(cmdtp); + return; + } + + addr = simple_strtoul( argv[ 1 ], NULL, 16 ) & 0xfffffffc; + + if(( bug_ctx.set ) && ( which_bp = (*bug_ctx.set)( 0, addr )) > 0 ) + { + printf( "Breakpoint [%d]: ", which_bp ); + disppc( (unsigned char *)addr, 0, 1, bedbug_puts, F_RADHEX ); + } + + return; +} /* bedbug860_do_break */ + + + +/* ====================================================================== + * Handle a breakpoint. First determine which breakpoint was hit by + * looking at the DeBug Status Register (DBSR), clear the breakpoint + * and enter a mini main loop. Stay in the loop until the stopped flag + * in the debug context is cleared. + * ====================================================================== */ + +void bedbug860_break_isr( struct pt_regs *regs ) +{ + unsigned long addr; /* Address stopped at */ + unsigned long cause; /* Address stopped at */ + /* -------------------------------------------------- */ + + cause = GET_ICR(); + + if( !(cause & 0x00000004)) { + printf( "Not an instruction breakpoint (ICR 0x%08lx)\n", cause ); + return; + } + + addr = regs->nip; + + if( addr == GET_CMPA() ) + { + bug_ctx.current_bp = 1; + } + else if( addr == GET_CMPB() ) + { + bug_ctx.current_bp = 2; + } + else if( addr == GET_CMPC() ) + { + bug_ctx.current_bp = 3; + } + else if( addr == GET_CMPD() ) + { + bug_ctx.current_bp = 4; + } + + bedbug_main_loop( addr, regs ); + return; +} /* bedbug860_break_isr */ + + + +/* ====================================================================== + * Look through all of the hardware breakpoints available to see if one + * is unused. + * ====================================================================== */ + +int bedbug860_find_empty( void ) +{ + /* -------------------------------------------------- */ + + if( GET_CMPA() == 0 ) + return 1; + + if( GET_CMPB() == 0 ) + return 2; + + if( GET_CMPC() == 0 ) + return 3; + + if( GET_CMPD() == 0 ) + return 4; + + return 0; +} /* bedbug860_find_empty */ + + + +/* ====================================================================== + * Set a breakpoint. If 'which_bp' is zero then find an unused breakpoint + * number, otherwise reassign the given breakpoint. If hardware debugging + * is not enabled, then turn it on via the MSR and DBCR0. Set the break + * address in the appropriate IACx register and enable proper address + * beakpoint in DBCR0. + * ====================================================================== */ + +int bedbug860_set( int which_bp, unsigned long addr ) +{ + /* -------------------------------------------------- */ + + /* Only look if which_bp == 0, else use which_bp */ + if(( bug_ctx.find_empty ) && ( !which_bp ) && + ( which_bp = (*bug_ctx.find_empty)()) == 0 ) + { + printf( "All breakpoints in use\n" ); + return 0; + } + + if( which_bp < 1 || which_bp > MAX_BREAK_POINTS ) + { + printf( "Invalid break point # %d\n", which_bp ); + return 0; + } + + if( ! bug_ctx.hw_debug_enabled ) + { + bug_ctx.hw_debug_enabled = 1; + SET_DER( GET_DER() | 0x00000004 ); + } + + switch( which_bp ) + { + case 1: + SET_CMPA( addr ); + SET_ICTRL( GET_ICTRL() | 0x80080800 ); /* CTA=Equal,IW0=Match A,SIW0EN */ + break; + + case 2: + SET_CMPB( addr ); + SET_ICTRL( GET_ICTRL() | 0x10020400 ); /* CTB=Equal,IW1=Match B,SIW1EN */ + break; + + case 3: + SET_CMPC( addr ); + SET_ICTRL( GET_ICTRL() | 0x02008200 ); /* CTC=Equal,IW2=Match C,SIW2EN */ + break; + + case 4: + SET_CMPD( addr ); + SET_ICTRL( GET_ICTRL() | 0x00404100 ); /* CTD=Equal,IW3=Match D,SIW3EN */ + break; + } + + return which_bp; +} /* bedbug860_set */ + + + +/* ====================================================================== + * Disable a specific breakoint by setting the appropriate IACx register + * to zero and claring the instruction address breakpoint in DBCR0. + * ====================================================================== */ + +int bedbug860_clear( int which_bp ) +{ + /* -------------------------------------------------- */ + + if( which_bp < 1 || which_bp > MAX_BREAK_POINTS ) + { + printf( "Invalid break point # (%d)\n", which_bp ); + return -1; + } + + switch( which_bp ) + { + case 1: + SET_CMPA( 0 ); + SET_ICTRL( GET_ICTRL() & ~0x80080800 ); /* CTA=Equal,IW0=Match A,SIW0EN */ + break; + + case 2: + SET_CMPB( 0 ); + SET_ICTRL( GET_ICTRL() & ~0x10020400 ); /* CTB=Equal,IW1=Match B,SIW1EN */ + break; + + case 3: + SET_CMPC( 0 ); + SET_ICTRL( GET_ICTRL() & ~0x02008200 ); /* CTC=Equal,IW2=Match C,SIW2EN */ + break; + + case 4: + SET_CMPD( 0 ); + SET_ICTRL( GET_ICTRL() & ~0x00404100 ); /* CTD=Equal,IW3=Match D,SIW3EN */ + break; + } + + return 0; +} /* bedbug860_clear */ + + +/* ====================================================================== */ +#endif diff --git a/arch/ppc/cpu/mpc8xx/commproc.c b/arch/ppc/cpu/mpc8xx/commproc.c new file mode 100644 index 0000000..a87a0dc --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/commproc.c @@ -0,0 +1,131 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <commproc.h> + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_SYS_ALLOC_DPRAM + +int dpram_init (void) +{ + /* Reclaim the DP memory for our use. */ + gd->dp_alloc_base = CPM_DATAONLY_BASE; + gd->dp_alloc_top = CPM_DATAONLY_BASE + CPM_DATAONLY_SIZE; + + return (0); +} + +/* Allocate some memory from the dual ported ram. We may want to + * enforce alignment restrictions, but right now everyone is a good + * citizen. + */ +uint dpram_alloc (uint size) +{ + uint addr = gd->dp_alloc_base; + + if ((gd->dp_alloc_base + size) >= gd->dp_alloc_top) + return (CPM_DP_NOSPACE); + + gd->dp_alloc_base += size; + + return addr; +} + +uint dpram_base (void) +{ + return gd->dp_alloc_base; +} + +/* Allocate some memory from the dual ported ram. We may want to + * enforce alignment restrictions, but right now everyone is a good + * citizen. + */ +uint dpram_alloc_align (uint size, uint align) +{ + uint addr, mask = align - 1; + + addr = (gd->dp_alloc_base + mask) & ~mask; + + if ((addr + size) >= gd->dp_alloc_top) + return (CPM_DP_NOSPACE); + + gd->dp_alloc_base = addr + size; + + return addr; +} + +uint dpram_base_align (uint align) +{ + uint mask = align - 1; + + return (gd->dp_alloc_base + mask) & ~mask; +} +#endif /* CONFIG_SYS_ALLOC_DPRAM */ + +#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) + +void post_word_store (ulong a) +{ + volatile void *save_addr = + ((immap_t *) CONFIG_SYS_IMMR)->im_cpm.cp_dpmem + CPM_POST_WORD_ADDR; + + *(volatile ulong *) save_addr = a; +} + +ulong post_word_load (void) +{ + volatile void *save_addr = + ((immap_t *) CONFIG_SYS_IMMR)->im_cpm.cp_dpmem + CPM_POST_WORD_ADDR; + + return *(volatile ulong *) save_addr; +} + +#endif /* CONFIG_POST || CONFIG_LOGBUFFER*/ + +#ifdef CONFIG_BOOTCOUNT_LIMIT + +void bootcount_store (ulong a) +{ + volatile ulong *save_addr = + (volatile ulong *)( ((immap_t *) CONFIG_SYS_IMMR)->im_cpm.cp_dpmem + + CPM_BOOTCOUNT_ADDR ); + + save_addr[0] = a; + save_addr[1] = BOOTCOUNT_MAGIC; +} + +ulong bootcount_load (void) +{ + volatile ulong *save_addr = + (volatile ulong *)( ((immap_t *) CONFIG_SYS_IMMR)->im_cpm.cp_dpmem + + CPM_BOOTCOUNT_ADDR ); + + if (save_addr[1] != BOOTCOUNT_MAGIC) + return 0; + else + return save_addr[0]; +} + +#endif /* CONFIG_BOOTCOUNT_LIMIT */ diff --git a/arch/ppc/cpu/mpc8xx/config.mk b/arch/ppc/cpu/mpc8xx/config.mk new file mode 100644 index 0000000..5540d65 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/config.mk @@ -0,0 +1,26 @@ +# +# (C) Copyright 2000 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +PLATFORM_RELFLAGS += -fPIC -meabi + +PLATFORM_CPPFLAGS += -DCONFIG_8xx -ffixed-r2 -mstring -mcpu=860 -msoft-float diff --git a/arch/ppc/cpu/mpc8xx/cpu.c b/arch/ppc/cpu/mpc8xx/cpu.c new file mode 100644 index 0000000..2eb848b --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/cpu.c @@ -0,0 +1,654 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * m8xx.c + * + * CPU specific code + * + * written or collected and sometimes rewritten by + * Magnus Damm <damm@bitsmart.com> + * + * minor modifications by + * Wolfgang Denk <wd@denx.de> + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <mpc8xx.h> +#include <commproc.h> +#include <netdev.h> +#include <asm/cache.h> + +#if defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#include <libfdt_env.h> +#include <fdt_support.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +static char *cpu_warning = "\n " \ + "*** Warning: CPU Core has Silicon Bugs -- Check the Errata ***"; + +#if ((defined(CONFIG_MPC86x) || defined(CONFIG_MPC855)) && \ + !defined(CONFIG_MPC862)) + +static int check_CPU (long clock, uint pvr, uint immr) +{ + char *id_str = +# if defined(CONFIG_MPC855) + "PC855"; +# elif defined(CONFIG_MPC860P) + "PC860P"; +# else + NULL; +# endif + volatile immap_t *immap = (immap_t *) (immr & 0xFFFF0000); + uint k, m; + char buf[32]; + char pre = 'X'; + char *mid = "xx"; + char *suf; + + /* the highest 16 bits should be 0x0050 for a 860 */ + + if ((pvr >> 16) != 0x0050) + return -1; + + k = (immr << 16) | *((ushort *) & immap->im_cpm.cp_dparam[0xB0]); + m = 0; + suf = ""; + + /* + * Some boards use sockets so different CPUs can be used. + * We have to check chip version in run time. + */ + switch (k) { + case 0x00020001: pre = 'P'; break; + case 0x00030001: break; + case 0x00120003: suf = "A"; break; + case 0x00130003: suf = "A3"; break; + + case 0x00200004: suf = "B"; break; + + case 0x00300004: suf = "C"; break; + case 0x00310004: suf = "C1"; m = 1; break; + + case 0x00200064: mid = "SR"; suf = "B"; break; + case 0x00300065: mid = "SR"; suf = "C"; break; + case 0x00310065: mid = "SR"; suf = "C1"; m = 1; break; + case 0x05010000: suf = "D3"; m = 1; break; + case 0x05020000: suf = "D4"; m = 1; break; + /* this value is not documented anywhere */ + case 0x40000000: pre = 'P'; suf = "D"; m = 1; break; + /* MPC866P/MPC866T/MPC859T/MPC859DSL/MPC852T */ + case 0x08010004: /* Rev. A.0 */ + suf = "A"; + /* fall through */ + case 0x08000003: /* Rev. 0.3 */ + pre = 'M'; m = 1; + if (id_str == NULL) + id_str = +# if defined(CONFIG_MPC852T) + "PC852T"; +# elif defined(CONFIG_MPC859T) + "PC859T"; +# elif defined(CONFIG_MPC859DSL) + "PC859DSL"; +# elif defined(CONFIG_MPC866T) + "PC866T"; +# else + "PC866x"; /* Unknown chip from MPC866 family */ +# endif + break; + case 0x09000000: pre = 'M'; mid = suf = ""; m = 1; + if (id_str == NULL) + id_str = "PC885"; /* 870/875/880/885 */ + break; + + default: suf = NULL; break; + } + + if (id_str == NULL) + id_str = "PC86x"; /* Unknown 86x chip */ + if (suf) + printf ("%c%s%sZPnn%s", pre, id_str, mid, suf); + else + printf ("unknown M%s (0x%08x)", id_str, k); + + +#if defined(CONFIG_SYS_8xx_CPUCLK_MIN) && defined(CONFIG_SYS_8xx_CPUCLK_MAX) + printf (" at %s MHz [%d.%d...%d.%d MHz]\n ", + strmhz (buf, clock), + CONFIG_SYS_8xx_CPUCLK_MIN / 1000000, + ((CONFIG_SYS_8xx_CPUCLK_MIN % 1000000) + 50000) / 100000, + CONFIG_SYS_8xx_CPUCLK_MAX / 1000000, + ((CONFIG_SYS_8xx_CPUCLK_MAX % 1000000) + 50000) / 100000 + ); +#else + printf (" at %s MHz: ", strmhz (buf, clock)); +#endif + printf ("%u kB I-Cache %u kB D-Cache", + checkicache () >> 10, + checkdcache () >> 10 + ); + + /* do we have a FEC (860T/P or 852/859/866/885)? */ + + immap->im_cpm.cp_fec.fec_addr_low = 0x12345678; + if (immap->im_cpm.cp_fec.fec_addr_low == 0x12345678) { + printf (" FEC present"); + } + + if (!m) { + puts (cpu_warning); + } + + putc ('\n'); + +#ifdef DEBUG + if(clock != measure_gclk()) { + printf ("clock %ldHz != %dHz\n", clock, measure_gclk()); + } +#endif + + return 0; +} + +#elif defined(CONFIG_MPC862) + +static int check_CPU (long clock, uint pvr, uint immr) +{ + volatile immap_t *immap = (immap_t *) (immr & 0xFFFF0000); + uint k, m; + char buf[32]; + char pre = 'X'; + char *mid = "xx"; + char *suf; + + /* the highest 16 bits should be 0x0050 for a 8xx */ + + if ((pvr >> 16) != 0x0050) + return -1; + + k = (immr << 16) | *((ushort *) & immap->im_cpm.cp_dparam[0xB0]); + m = 0; + + switch (k) { + + /* this value is not documented anywhere */ + case 0x06000000: mid = "P"; suf = "0"; break; + case 0x06010001: mid = "P"; suf = "A"; m = 1; break; + case 0x07000003: mid = "P"; suf = "B"; m = 1; break; + default: suf = NULL; break; + } + +#ifndef CONFIG_MPC857 + if (suf) + printf ("%cPC862%sZPnn%s", pre, mid, suf); + else + printf ("unknown MPC862 (0x%08x)", k); +#else + if (suf) + printf ("%cPC857TZPnn%s", pre, suf); /* only 857T tested right now! */ + else + printf ("unknown MPC857 (0x%08x)", k); +#endif + + printf (" at %s MHz:", strmhz (buf, clock)); + + printf (" %u kB I-Cache", checkicache () >> 10); + printf (" %u kB D-Cache", checkdcache () >> 10); + + /* lets check and see if we're running on a 862T (or P?) */ + + immap->im_cpm.cp_fec.fec_addr_low = 0x12345678; + if (immap->im_cpm.cp_fec.fec_addr_low == 0x12345678) { + printf (" FEC present"); + } + + if (!m) { + puts (cpu_warning); + } + + putc ('\n'); + + return 0; +} + +#elif defined(CONFIG_MPC823) + +static int check_CPU (long clock, uint pvr, uint immr) +{ + volatile immap_t *immap = (immap_t *) (immr & 0xFFFF0000); + uint k, m; + char buf[32]; + char *suf; + + /* the highest 16 bits should be 0x0050 for a 8xx */ + + if ((pvr >> 16) != 0x0050) + return -1; + + k = (immr << 16) | *((ushort *) & immap->im_cpm.cp_dparam[0xB0]); + m = 0; + + switch (k) { + /* MPC823 */ + case 0x20000000: suf = "0"; break; + case 0x20010000: suf = "0.1"; break; + case 0x20020000: suf = "Z2/3"; break; + case 0x20020001: suf = "Z3"; break; + case 0x21000000: suf = "A"; break; + case 0x21010000: suf = "B"; m = 1; break; + case 0x21010001: suf = "B2"; m = 1; break; + /* MPC823E */ + case 0x24010000: suf = NULL; + puts ("PPC823EZTnnB2"); + m = 1; + break; + default: + suf = NULL; + printf ("unknown MPC823 (0x%08x)", k); + break; + } + if (suf) + printf ("PPC823ZTnn%s", suf); + + printf (" at %s MHz:", strmhz (buf, clock)); + + printf (" %u kB I-Cache", checkicache () >> 10); + printf (" %u kB D-Cache", checkdcache () >> 10); + + /* lets check and see if we're running on a 860T (or P?) */ + + immap->im_cpm.cp_fec.fec_addr_low = 0x12345678; + if (immap->im_cpm.cp_fec.fec_addr_low == 0x12345678) { + puts (" FEC present"); + } + + if (!m) { + puts (cpu_warning); + } + + putc ('\n'); + + return 0; +} + +#elif defined(CONFIG_MPC850) + +static int check_CPU (long clock, uint pvr, uint immr) +{ + volatile immap_t *immap = (immap_t *) (immr & 0xFFFF0000); + uint k, m; + char buf[32]; + + /* the highest 16 bits should be 0x0050 for a 8xx */ + + if ((pvr >> 16) != 0x0050) + return -1; + + k = (immr << 16) | *((ushort *) & immap->im_cpm.cp_dparam[0xB0]); + m = 0; + + switch (k) { + case 0x20020001: + printf ("XPC850xxZT"); + break; + case 0x21000065: + printf ("XPC850xxZTA"); + break; + case 0x21010067: + printf ("XPC850xxZTB"); + m = 1; + break; + case 0x21020068: + printf ("XPC850xxZTC"); + m = 1; + break; + default: + printf ("unknown MPC850 (0x%08x)", k); + } + printf (" at %s MHz:", strmhz (buf, clock)); + + printf (" %u kB I-Cache", checkicache () >> 10); + printf (" %u kB D-Cache", checkdcache () >> 10); + + /* lets check and see if we're running on a 850T (or P?) */ + + immap->im_cpm.cp_fec.fec_addr_low = 0x12345678; + if (immap->im_cpm.cp_fec.fec_addr_low == 0x12345678) { + printf (" FEC present"); + } + + if (!m) { + puts (cpu_warning); + } + + putc ('\n'); + + return 0; +} +#else +#error CPU undefined +#endif +/* ------------------------------------------------------------------------- */ + +int checkcpu (void) +{ + ulong clock = gd->cpu_clk; + uint immr = get_immr (0); /* Return full IMMR contents */ + uint pvr = get_pvr (); + + puts ("CPU: "); + + /* 850 has PARTNUM 20 */ + /* 801 has PARTNUM 10 */ + return check_CPU (clock, pvr, immr); +} + +/* ------------------------------------------------------------------------- */ +/* L1 i-cache */ +/* the standard 860 has 128 sets of 16 bytes in 2 ways (= 4 kB) */ +/* the 860 P (plus) has 256 sets of 16 bytes in 4 ways (= 16 kB) */ + +int checkicache (void) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + volatile memctl8xx_t *memctl = &immap->im_memctl; + u32 cacheon = rd_ic_cst () & IDC_ENABLED; + +#ifdef CONFIG_IP86x + u32 k = memctl->memc_br1 & ~0x00007fff; /* probe in flash memoryarea */ +#else + u32 k = memctl->memc_br0 & ~0x00007fff; /* probe in flash memoryarea */ +#endif + u32 m; + u32 lines = -1; + + wr_ic_cst (IDC_UNALL); + wr_ic_cst (IDC_INVALL); + wr_ic_cst (IDC_DISABLE); + __asm__ volatile ("isync"); + + while (!((m = rd_ic_cst ()) & IDC_CERR2)) { + wr_ic_adr (k); + wr_ic_cst (IDC_LDLCK); + __asm__ volatile ("isync"); + + lines++; + k += 0x10; /* the number of bytes in a cacheline */ + } + + wr_ic_cst (IDC_UNALL); + wr_ic_cst (IDC_INVALL); + + if (cacheon) + wr_ic_cst (IDC_ENABLE); + else + wr_ic_cst (IDC_DISABLE); + + __asm__ volatile ("isync"); + + return lines << 4; +}; + +/* ------------------------------------------------------------------------- */ +/* L1 d-cache */ +/* the standard 860 has 128 sets of 16 bytes in 2 ways (= 4 kB) */ +/* the 860 P (plus) has 256 sets of 16 bytes in 2 ways (= 8 kB) */ +/* call with cache disabled */ + +int checkdcache (void) +{ + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + volatile memctl8xx_t *memctl = &immap->im_memctl; + u32 cacheon = rd_dc_cst () & IDC_ENABLED; + +#ifdef CONFIG_IP86x + u32 k = memctl->memc_br1 & ~0x00007fff; /* probe in flash memoryarea */ +#else + u32 k = memctl->memc_br0 & ~0x00007fff; /* probe in flash memoryarea */ +#endif + u32 m; + u32 lines = -1; + + wr_dc_cst (IDC_UNALL); + wr_dc_cst (IDC_INVALL); + wr_dc_cst (IDC_DISABLE); + + while (!((m = rd_dc_cst ()) & IDC_CERR2)) { + wr_dc_adr (k); + wr_dc_cst (IDC_LDLCK); + lines++; + k += 0x10; /* the number of bytes in a cacheline */ + } + + wr_dc_cst (IDC_UNALL); + wr_dc_cst (IDC_INVALL); + + if (cacheon) + wr_dc_cst (IDC_ENABLE); + else + wr_dc_cst (IDC_DISABLE); + + return lines << 4; +}; + +/* ------------------------------------------------------------------------- */ + +void upmconfig (uint upm, uint * table, uint size) +{ + uint i; + uint addr = 0; + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + volatile memctl8xx_t *memctl = &immap->im_memctl; + + for (i = 0; i < size; i++) { + memctl->memc_mdr = table[i]; /* (16-15) */ + memctl->memc_mcr = addr | upm; /* (16-16) */ + addr++; + } +} + +/* ------------------------------------------------------------------------- */ + +#ifndef CONFIG_LWMON + +int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + ulong msr, addr; + + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + + immap->im_clkrst.car_plprcr |= PLPRCR_CSR; /* Checkstop Reset enable */ + + /* Interrupts and MMU off */ + __asm__ volatile ("mtspr 81, 0"); + __asm__ volatile ("mfmsr %0":"=r" (msr)); + + msr &= ~0x1030; + __asm__ volatile ("mtmsr %0"::"r" (msr)); + + /* + * Trying to execute the next instruction at a non-existing address + * should cause a machine check, resulting in reset + */ +#ifdef CONFIG_SYS_RESET_ADDRESS + addr = CONFIG_SYS_RESET_ADDRESS; +#else + /* + * note: when CONFIG_SYS_MONITOR_BASE points to a RAM address, CONFIG_SYS_MONITOR_BASE + * - sizeof (ulong) is usually a valid address. Better pick an address + * known to be invalid on your system and assign it to CONFIG_SYS_RESET_ADDRESS. + * "(ulong)-1" used to be a good choice for many systems... + */ + addr = CONFIG_SYS_MONITOR_BASE - sizeof (ulong); +#endif + ((void (*)(void)) addr) (); + return 1; +} + +#else /* CONFIG_LWMON */ + +/* + * On the LWMON board, the MCLR reset input of the PIC's on the board + * uses a 47K/1n RC combination which has a 47us time constant. The + * low signal on the HRESET pin of the CPU is only 512 clocks = 8 us + * and thus too short to reset the external hardware. So we use the + * watchdog to reset the board. + */ +int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + /* prevent triggering the watchdog */ + disable_interrupts (); + + /* make sure the watchdog is running */ + reset_8xx_watchdog ((immap_t *) CONFIG_SYS_IMMR); + + /* wait for watchdog reset */ + while (1) {}; + + /* NOTREACHED */ + return 1; +} + +#endif /* CONFIG_LWMON */ + +/* ------------------------------------------------------------------------- */ + +/* + * Get timebase clock frequency (like cpu_clk in Hz) + * + * See sections 14.2 and 14.6 of the User's Manual + */ +unsigned long get_tbclk (void) +{ + uint immr = get_immr (0); /* Return full IMMR contents */ + volatile immap_t *immap = (volatile immap_t *)(immr & 0xFFFF0000); + ulong oscclk, factor, pll; + + if (immap->im_clkrst.car_sccr & SCCR_TBS) { + return (gd->cpu_clk / 16); + } + + pll = immap->im_clkrst.car_plprcr; + +#define PLPRCR_val(a) ((pll & PLPRCR_ ## a ## _MSK) >> PLPRCR_ ## a ## _SHIFT) + + /* + * For newer PQ1 chips (MPC866/87x/88x families), PLL multiplication + * factor is calculated as follows: + * + * MFN + * MFI + ------- + * MFD + 1 + * factor = ----------------- + * (PDF + 1) * 2^S + * + * For older chips, it's just MF field of PLPRCR plus one. + */ + if ((immr & 0x0FFF) >= MPC8xx_NEW_CLK) { /* MPC866/87x/88x series */ + factor = (PLPRCR_val(MFI) + PLPRCR_val(MFN)/(PLPRCR_val(MFD)+1))/ + (PLPRCR_val(PDF)+1) / (1<<PLPRCR_val(S)); + } else { + factor = PLPRCR_val(MF)+1; + } + + oscclk = gd->cpu_clk / factor; + + if ((immap->im_clkrst.car_sccr & SCCR_RTSEL) == 0 || factor > 2) { + return (oscclk / 4); + } + return (oscclk / 16); +} + +/* ------------------------------------------------------------------------- */ + +#if defined(CONFIG_WATCHDOG) +void watchdog_reset (void) +{ + int re_enable = disable_interrupts (); + + reset_8xx_watchdog ((immap_t *) CONFIG_SYS_IMMR); + if (re_enable) + enable_interrupts (); +} +#endif /* CONFIG_WATCHDOG */ + +#if defined(CONFIG_WATCHDOG) || defined(CONFIG_LWMON) + +void reset_8xx_watchdog (volatile immap_t * immr) +{ +# if defined(CONFIG_LWMON) + /* + * The LWMON board uses a MAX6301 Watchdog + * with the trigger pin connected to port PA.7 + * + * (The old board version used a MAX706TESA Watchdog, which + * had to be handled exactly the same.) + */ +# define WATCHDOG_BIT 0x0100 + immr->im_ioport.iop_papar &= ~(WATCHDOG_BIT); /* GPIO */ + immr->im_ioport.iop_padir |= WATCHDOG_BIT; /* Output */ + immr->im_ioport.iop_paodr &= ~(WATCHDOG_BIT); /* active output */ + + immr->im_ioport.iop_padat ^= WATCHDOG_BIT; /* Toggle WDI */ +# elif defined(CONFIG_KUP4K) || defined(CONFIG_KUP4X) + /* + * The KUP4 boards uses a TPS3705 Watchdog + * with the trigger pin connected to port PA.5 + */ +# define WATCHDOG_BIT 0x0400 + immr->im_ioport.iop_papar &= ~(WATCHDOG_BIT); /* GPIO */ + immr->im_ioport.iop_padir |= WATCHDOG_BIT; /* Output */ + immr->im_ioport.iop_paodr &= ~(WATCHDOG_BIT); /* active output */ + + immr->im_ioport.iop_padat ^= WATCHDOG_BIT; /* Toggle WDI */ +# else + /* + * All other boards use the MPC8xx Internal Watchdog + */ + immr->im_siu_conf.sc_swsr = 0x556c; /* write magic1 */ + immr->im_siu_conf.sc_swsr = 0xaa39; /* write magic2 */ +# endif /* CONFIG_LWMON */ +} +#endif /* CONFIG_WATCHDOG */ + +/* + * Initializes on-chip ethernet controllers. + * to override, implement board_eth_init() + */ +int cpu_eth_init(bd_t *bis) +{ +#if defined(SCC_ENET) && defined(CONFIG_CMD_NET) + scc_initialize(bis); +#endif +#if defined(FEC_ENET) + fec_initialize(bis); +#endif + return 0; +} diff --git a/arch/ppc/cpu/mpc8xx/cpu_init.c b/arch/ppc/cpu/mpc8xx/cpu_init.c new file mode 100644 index 0000000..eb0091b --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/cpu_init.c @@ -0,0 +1,285 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <watchdog.h> + +#include <mpc8xx.h> +#include <commproc.h> + +#if defined(CONFIG_SYS_RTCSC) || defined(CONFIG_SYS_RMDS) +DECLARE_GLOBAL_DATA_PTR; +#endif + +#if defined(CONFIG_SYS_I2C_UCODE_PATCH) || defined(CONFIG_SYS_SPI_UCODE_PATCH) || \ + defined(CONFIG_SYS_SMC_UCODE_PATCH) +void cpm_load_patch (volatile immap_t * immr); +#endif + +/* + * Breath some life into the CPU... + * + * Set up the memory map, + * initialize a bunch of registers, + * initialize the UPM's + */ +void cpu_init_f (volatile immap_t * immr) +{ +#ifndef CONFIG_MBX + volatile memctl8xx_t *memctl = &immr->im_memctl; +# ifdef CONFIG_SYS_PLPRCR + ulong mfmask; +# endif +#endif + ulong reg; + + /* SYPCR - contains watchdog control (11-9) */ + + immr->im_siu_conf.sc_sypcr = CONFIG_SYS_SYPCR; + +#if defined(CONFIG_WATCHDOG) + reset_8xx_watchdog (immr); +#endif /* CONFIG_WATCHDOG */ + + /* SIUMCR - contains debug pin configuration (11-6) */ +#ifndef CONFIG_SVM_SC8xx + immr->im_siu_conf.sc_siumcr |= CONFIG_SYS_SIUMCR; +#else + immr->im_siu_conf.sc_siumcr = CONFIG_SYS_SIUMCR; +#endif + /* initialize timebase status and control register (11-26) */ + /* unlock TBSCRK */ + + immr->im_sitk.sitk_tbscrk = KAPWR_KEY; + immr->im_sit.sit_tbscr = CONFIG_SYS_TBSCR; + + /* initialize the PIT (11-31) */ + + immr->im_sitk.sitk_piscrk = KAPWR_KEY; + immr->im_sit.sit_piscr = CONFIG_SYS_PISCR; + + /* System integration timers. Don't change EBDF! (15-27) */ + + immr->im_clkrstk.cark_sccrk = KAPWR_KEY; + reg = immr->im_clkrst.car_sccr; + reg &= SCCR_MASK; + reg |= CONFIG_SYS_SCCR; + immr->im_clkrst.car_sccr = reg; + + /* PLL (CPU clock) settings (15-30) */ + + immr->im_clkrstk.cark_plprcrk = KAPWR_KEY; + +#ifndef CONFIG_MBX /* MBX board does things different */ + + /* If CONFIG_SYS_PLPRCR (set in the various *_config.h files) tries to + * set the MF field, then just copy CONFIG_SYS_PLPRCR over car_plprcr, + * otherwise OR in CONFIG_SYS_PLPRCR so we do not change the current MF + * field value. + * + * For newer (starting MPC866) chips PLPRCR layout is different. + */ +#ifdef CONFIG_SYS_PLPRCR + if (get_immr(0xFFFF) >= MPC8xx_NEW_CLK) + mfmask = PLPRCR_MFACT_MSK; + else + mfmask = PLPRCR_MF_MSK; + + if ((CONFIG_SYS_PLPRCR & mfmask) != 0) + reg = CONFIG_SYS_PLPRCR; /* reset control bits */ + else { + reg = immr->im_clkrst.car_plprcr; + reg &= mfmask; /* isolate MF-related fields */ + reg |= CONFIG_SYS_PLPRCR; /* reset control bits */ + } + immr->im_clkrst.car_plprcr = reg; +#endif + + /* + * Memory Controller: + */ + + /* perform BR0 reset that MPC850 Rev. A can't guarantee */ + reg = memctl->memc_br0; + reg &= BR_PS_MSK; /* Clear everything except Port Size bits */ + reg |= BR_V; /* then add just the "Bank Valid" bit */ + memctl->memc_br0 = reg; + + /* Map banks 0 (and maybe 1) to the FLASH banks 0 (and 1) at + * preliminary addresses - these have to be modified later + * when FLASH size has been determined + * + * Depending on the size of the memory region defined by + * CONFIG_SYS_OR0_REMAP some boards (wide address mask) allow to map the + * CONFIG_SYS_MONITOR_BASE, while others (narrower address mask) can't + * map CONFIG_SYS_MONITOR_BASE. + * + * For example, for CONFIG_IVMS8, the CONFIG_SYS_MONITOR_BASE is + * 0xff000000, but CONFIG_SYS_OR0_REMAP's address mask is 0xfff80000. + * + * If BR0 wasn't loaded with address base 0xff000000, then BR0's + * base address remains as 0x00000000. However, the address mask + * have been narrowed to 512Kb, so CONFIG_SYS_MONITOR_BASE wasn't mapped + * into the Bank0. + * + * This is why CONFIG_IVMS8 and similar boards must load BR0 with + * CONFIG_SYS_BR0_PRELIM in advance. + * + * [Thanks to Michael Liao for this explanation. + * I owe him a free beer. - wd] + */ + +#if defined(CONFIG_GTH) || \ + defined(CONFIG_HERMES) || \ + defined(CONFIG_ICU862) || \ + defined(CONFIG_IP860) || \ + defined(CONFIG_IVML24) || \ + defined(CONFIG_IVMS8) || \ + defined(CONFIG_LWMON) || \ + defined(CONFIG_MHPC) || \ + defined(CONFIG_PCU_E) || \ + defined(CONFIG_R360MPI) || \ + defined(CONFIG_RMU) || \ + defined(CONFIG_RPXCLASSIC) || \ + defined(CONFIG_RPXLITE) || \ + defined(CONFIG_SPC1920) || \ + defined(CONFIG_SPD823TS) + + memctl->memc_br0 = CONFIG_SYS_BR0_PRELIM; +#endif + +#if defined(CONFIG_SYS_OR0_REMAP) + memctl->memc_or0 = CONFIG_SYS_OR0_REMAP; +#endif +#if defined(CONFIG_SYS_OR1_REMAP) + memctl->memc_or1 = CONFIG_SYS_OR1_REMAP; +#endif +#if defined(CONFIG_SYS_OR5_REMAP) + memctl->memc_or5 = CONFIG_SYS_OR5_REMAP; +#endif + + /* now restrict to preliminary range */ + memctl->memc_br0 = CONFIG_SYS_BR0_PRELIM; + memctl->memc_or0 = CONFIG_SYS_OR0_PRELIM; + +#if (defined(CONFIG_SYS_OR1_PRELIM) && defined(CONFIG_SYS_BR1_PRELIM)) + memctl->memc_or1 = CONFIG_SYS_OR1_PRELIM; + memctl->memc_br1 = CONFIG_SYS_BR1_PRELIM; +#endif + +#if defined(CONFIG_IP860) /* disable CS0 now that Flash is mapped on CS1 */ + memctl->memc_br0 = 0; +#endif + +#if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM) + memctl->memc_or2 = CONFIG_SYS_OR2_PRELIM; + memctl->memc_br2 = CONFIG_SYS_BR2_PRELIM; +#endif + +#if defined(CONFIG_SYS_OR3_PRELIM) && defined(CONFIG_SYS_BR3_PRELIM) + memctl->memc_or3 = CONFIG_SYS_OR3_PRELIM; + memctl->memc_br3 = CONFIG_SYS_BR3_PRELIM; +#endif + +#if defined(CONFIG_SYS_OR4_PRELIM) && defined(CONFIG_SYS_BR4_PRELIM) + memctl->memc_or4 = CONFIG_SYS_OR4_PRELIM; + memctl->memc_br4 = CONFIG_SYS_BR4_PRELIM; +#endif + +#if defined(CONFIG_SYS_OR5_PRELIM) && defined(CONFIG_SYS_BR5_PRELIM) + memctl->memc_or5 = CONFIG_SYS_OR5_PRELIM; + memctl->memc_br5 = CONFIG_SYS_BR5_PRELIM; +#endif + +#if defined(CONFIG_SYS_OR6_PRELIM) && defined(CONFIG_SYS_BR6_PRELIM) + memctl->memc_or6 = CONFIG_SYS_OR6_PRELIM; + memctl->memc_br6 = CONFIG_SYS_BR6_PRELIM; +#endif + +#if defined(CONFIG_SYS_OR7_PRELIM) && defined(CONFIG_SYS_BR7_PRELIM) + memctl->memc_or7 = CONFIG_SYS_OR7_PRELIM; + memctl->memc_br7 = CONFIG_SYS_BR7_PRELIM; +#endif + +#endif /* ! CONFIG_MBX */ + + /* + * Reset CPM + */ + immr->im_cpm.cp_cpcr = CPM_CR_RST | CPM_CR_FLG; + do { /* Spin until command processed */ + __asm__ ("eieio"); + } while (immr->im_cpm.cp_cpcr & CPM_CR_FLG); + +#ifdef CONFIG_MBX + /* + * on the MBX, things are a little bit different: + * - we need to read the VPD to get board information + * - the plprcr is set up dynamically + * - the memory controller is set up dynamically + */ + mbx_init (); +#endif /* CONFIG_MBX */ + +#ifdef CONFIG_RPXCLASSIC + rpxclassic_init (); +#endif + +#if defined(CONFIG_RPXLITE) && defined(CONFIG_ENV_IS_IN_NVRAM) + rpxlite_init (); +#endif + +#ifdef CONFIG_SYS_RCCR /* must be done before cpm_load_patch() */ + /* write config value */ + immr->im_cpm.cp_rccr = CONFIG_SYS_RCCR; +#endif + +#if defined(CONFIG_SYS_I2C_UCODE_PATCH) || defined(CONFIG_SYS_SPI_UCODE_PATCH) || \ + defined(CONFIG_SYS_SMC_UCODE_PATCH) + cpm_load_patch (immr); /* load mpc8xx microcode patch */ +#endif +} + +/* + * initialize higher level parts of CPU like timers + */ +int cpu_init_r (void) +{ +#if defined(CONFIG_SYS_RTCSC) || defined(CONFIG_SYS_RMDS) + bd_t *bd = gd->bd; + volatile immap_t *immr = (volatile immap_t *) (bd->bi_immr_base); +#endif + +#ifdef CONFIG_SYS_RTCSC + /* Unlock RTSC register */ + immr->im_sitk.sitk_rtcsck = KAPWR_KEY; + /* write config value */ + immr->im_sit.sit_rtcsc = CONFIG_SYS_RTCSC; +#endif + +#ifdef CONFIG_SYS_RMDS + /* write config value */ + immr->im_cpm.cp_rmds = CONFIG_SYS_RMDS; +#endif + return (0); +} diff --git a/arch/ppc/cpu/mpc8xx/fdt.c b/arch/ppc/cpu/mpc8xx/fdt.c new file mode 100644 index 0000000..7130983 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/fdt.c @@ -0,0 +1,46 @@ +/* + * Copyright 2008 (C) Bryan O'Donoghue + * + * Code copied & edited from Freescale mpc85xx stuff. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <libfdt.h> +#include <fdt_support.h> + +DECLARE_GLOBAL_DATA_PTR; + +void ft_cpu_setup(void *blob, bd_t *bd) +{ + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "timebase-frequency", get_tbclk(), 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "bus-frequency", bd->bi_busfreq, 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, + "clock-frequency", bd->bi_intfreq, 1); + do_fixup_by_compat_u32(blob, "fsl,cpm-brg", "clock-frequency", + gd->brg_clk, 1); + + /* Fixup ethernet MAC addresses */ + fdt_fixup_ethernet(blob); + + fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize); +} diff --git a/arch/ppc/cpu/mpc8xx/fec.c b/arch/ppc/cpu/mpc8xx/fec.c new file mode 100644 index 0000000..89c1ff9 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/fec.c @@ -0,0 +1,1026 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <malloc.h> +#include <commproc.h> +#include <net.h> +#include <command.h> + +DECLARE_GLOBAL_DATA_PTR; + +#undef ET_DEBUG + +#if defined(CONFIG_CMD_NET) && \ + (defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FEC1) || defined(CONFIG_ETHER_ON_FEC2)) + +/* compatibility test, if only FEC_ENET defined assume ETHER on FEC1 */ +#if defined(FEC_ENET) && !defined(CONFIG_ETHER_ON_FEC1) && !defined(CONFIG_ETHER_ON_FEC2) +#define CONFIG_ETHER_ON_FEC1 1 +#endif + +/* define WANT_MII when MII support is required */ +#if defined(CONFIG_SYS_DISCOVER_PHY) || defined(CONFIG_FEC1_PHY) || defined(CONFIG_FEC2_PHY) +#define WANT_MII +#else +#undef WANT_MII +#endif + +#if defined(WANT_MII) +#include <miiphy.h> + +#if !(defined(CONFIG_MII) || defined(CONFIG_CMD_MII)) +#error "CONFIG_MII has to be defined!" +#endif + +#endif + +#if defined(CONFIG_RMII) && !defined(WANT_MII) +#error RMII support is unusable without a working PHY. +#endif + +#ifdef CONFIG_SYS_DISCOVER_PHY +static int mii_discover_phy(struct eth_device *dev); +#endif + +int fec8xx_miiphy_read(char *devname, unsigned char addr, + unsigned char reg, unsigned short *value); +int fec8xx_miiphy_write(char *devname, unsigned char addr, + unsigned char reg, unsigned short value); + +static struct ether_fcc_info_s +{ + int ether_index; + int fecp_offset; + int phy_addr; + int actual_phy_addr; + int initialized; +} + ether_fcc_info[] = { +#if defined(CONFIG_ETHER_ON_FEC1) + { + 0, + offsetof(immap_t, im_cpm.cp_fec1), +#if defined(CONFIG_FEC1_PHY) + CONFIG_FEC1_PHY, +#else + -1, /* discover */ +#endif + -1, + 0, + + }, +#endif +#if defined(CONFIG_ETHER_ON_FEC2) + { + 1, + offsetof(immap_t, im_cpm.cp_fec2), +#if defined(CONFIG_FEC2_PHY) + CONFIG_FEC2_PHY, +#else + -1, +#endif + -1, + 0, + }, +#endif +}; + +/* Ethernet Transmit and Receive Buffers */ +#define DBUF_LENGTH 1520 + +#define TX_BUF_CNT 2 + +#define TOUT_LOOP 100 + +#define PKT_MAXBUF_SIZE 1518 +#define PKT_MINBUF_SIZE 64 +#define PKT_MAXBLR_SIZE 1520 + +#ifdef __GNUC__ +static char txbuf[DBUF_LENGTH] __attribute__ ((aligned(8))); +#else +#error txbuf must be aligned. +#endif + +static uint rxIdx; /* index of the current RX buffer */ +static uint txIdx; /* index of the current TX buffer */ + +/* + * FEC Ethernet Tx and Rx buffer descriptors allocated at the + * immr->udata_bd address on Dual-Port RAM + * Provide for Double Buffering + */ + +typedef volatile struct CommonBufferDescriptor { + cbd_t rxbd[PKTBUFSRX]; /* Rx BD */ + cbd_t txbd[TX_BUF_CNT]; /* Tx BD */ +} RTXBD; + +static RTXBD *rtx = NULL; + +static int fec_send(struct eth_device* dev, volatile void *packet, int length); +static int fec_recv(struct eth_device* dev); +static int fec_init(struct eth_device* dev, bd_t * bd); +static void fec_halt(struct eth_device* dev); +#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) +static void __mii_init(void); +#endif + +int fec_initialize(bd_t *bis) +{ + struct eth_device* dev; + struct ether_fcc_info_s *efis; + int i; + + for (i = 0; i < sizeof(ether_fcc_info) / sizeof(ether_fcc_info[0]); i++) { + + dev = malloc(sizeof(*dev)); + if (dev == NULL) + hang(); + + memset(dev, 0, sizeof(*dev)); + + /* for FEC1 make sure that the name of the interface is the same + as the old one for compatibility reasons */ + if (i == 0) { + sprintf (dev->name, "FEC ETHERNET"); + } else { + sprintf (dev->name, "FEC%d ETHERNET", + ether_fcc_info[i].ether_index + 1); + } + + efis = ðer_fcc_info[i]; + + /* + * reset actual phy addr + */ + efis->actual_phy_addr = -1; + + dev->priv = efis; + dev->init = fec_init; + dev->halt = fec_halt; + dev->send = fec_send; + dev->recv = fec_recv; + + eth_register(dev); + +#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) + miiphy_register(dev->name, + fec8xx_miiphy_read, fec8xx_miiphy_write); +#endif + } + return 1; +} + +static int fec_send(struct eth_device* dev, volatile void *packet, int length) +{ + int j, rc; + struct ether_fcc_info_s *efis = dev->priv; + volatile fec_t *fecp = (volatile fec_t *)(CONFIG_SYS_IMMR + efis->fecp_offset); + + /* section 16.9.23.3 + * Wait for ready + */ + j = 0; + while ((rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY) && (j<TOUT_LOOP)) { + udelay(1); + j++; + } + if (j>=TOUT_LOOP) { + printf("TX not ready\n"); + } + + rtx->txbd[txIdx].cbd_bufaddr = (uint)packet; + rtx->txbd[txIdx].cbd_datlen = length; + rtx->txbd[txIdx].cbd_sc |= BD_ENET_TX_READY | BD_ENET_TX_LAST; + __asm__ ("eieio"); + + /* Activate transmit Buffer Descriptor polling */ + fecp->fec_x_des_active = 0x01000000; /* Descriptor polling active */ + + j = 0; + while ((rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY) && (j<TOUT_LOOP)) { +#if defined(CONFIG_ICU862) + udelay(10); +#else + udelay(1); +#endif + j++; + } + if (j>=TOUT_LOOP) { + printf("TX timeout\n"); + } +#ifdef ET_DEBUG + printf("%s[%d] %s: cycles: %d status: %x retry cnt: %d\n", + __FILE__,__LINE__,__FUNCTION__,j,rtx->txbd[txIdx].cbd_sc, + (rtx->txbd[txIdx].cbd_sc & 0x003C)>>2); +#endif + /* return only status bits */; + rc = (rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_STATS); + + txIdx = (txIdx + 1) % TX_BUF_CNT; + + return rc; +} + +static int fec_recv (struct eth_device *dev) +{ + struct ether_fcc_info_s *efis = dev->priv; + volatile fec_t *fecp = + (volatile fec_t *) (CONFIG_SYS_IMMR + efis->fecp_offset); + int length; + + for (;;) { + /* section 16.9.23.2 */ + if (rtx->rxbd[rxIdx].cbd_sc & BD_ENET_RX_EMPTY) { + length = -1; + break; /* nothing received - leave for() loop */ + } + + length = rtx->rxbd[rxIdx].cbd_datlen; + + if (rtx->rxbd[rxIdx].cbd_sc & 0x003f) { +#ifdef ET_DEBUG + printf ("%s[%d] err: %x\n", + __FUNCTION__, __LINE__, + rtx->rxbd[rxIdx].cbd_sc); +#endif + } else { + volatile uchar *rx = NetRxPackets[rxIdx]; + + length -= 4; + +#if defined(CONFIG_CMD_CDP) + if ((rx[0] & 1) != 0 + && memcmp ((uchar *) rx, NetBcastAddr, 6) != 0 + && memcmp ((uchar *) rx, NetCDPAddr, 6) != 0) + rx = NULL; +#endif + /* + * Pass the packet up to the protocol layers. + */ + if (rx != NULL) + NetReceive (rx, length); + } + + /* Give the buffer back to the FEC. */ + rtx->rxbd[rxIdx].cbd_datlen = 0; + + /* wrap around buffer index when necessary */ + if ((rxIdx + 1) >= PKTBUFSRX) { + rtx->rxbd[PKTBUFSRX - 1].cbd_sc = + (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY); + rxIdx = 0; + } else { + rtx->rxbd[rxIdx].cbd_sc = BD_ENET_RX_EMPTY; + rxIdx++; + } + + __asm__ ("eieio"); + + /* Try to fill Buffer Descriptors */ + fecp->fec_r_des_active = 0x01000000; /* Descriptor polling active */ + } + + return length; +} + +/************************************************************** + * + * FEC Ethernet Initialization Routine + * + *************************************************************/ + +#define FEC_ECNTRL_PINMUX 0x00000004 +#define FEC_ECNTRL_ETHER_EN 0x00000002 +#define FEC_ECNTRL_RESET 0x00000001 + +#define FEC_RCNTRL_BC_REJ 0x00000010 +#define FEC_RCNTRL_PROM 0x00000008 +#define FEC_RCNTRL_MII_MODE 0x00000004 +#define FEC_RCNTRL_DRT 0x00000002 +#define FEC_RCNTRL_LOOP 0x00000001 + +#define FEC_TCNTRL_FDEN 0x00000004 +#define FEC_TCNTRL_HBC 0x00000002 +#define FEC_TCNTRL_GTS 0x00000001 + +#define FEC_RESET_DELAY 50 + +#if defined(CONFIG_RMII) + +static inline void fec_10Mbps(struct eth_device *dev) +{ + struct ether_fcc_info_s *efis = dev->priv; + int fecidx = efis->ether_index; + uint mask = (fecidx == 0) ? 0x0000010 : 0x0000008; + + if ((unsigned int)fecidx >= 2) + hang(); + + ((volatile immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_cptr |= mask; +} + +static inline void fec_100Mbps(struct eth_device *dev) +{ + struct ether_fcc_info_s *efis = dev->priv; + int fecidx = efis->ether_index; + uint mask = (fecidx == 0) ? 0x0000010 : 0x0000008; + + if ((unsigned int)fecidx >= 2) + hang(); + + ((volatile immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_cptr &= ~mask; +} + +#endif + +static inline void fec_full_duplex(struct eth_device *dev) +{ + struct ether_fcc_info_s *efis = dev->priv; + volatile fec_t *fecp = (volatile fec_t *)(CONFIG_SYS_IMMR + efis->fecp_offset); + + fecp->fec_r_cntrl &= ~FEC_RCNTRL_DRT; + fecp->fec_x_cntrl |= FEC_TCNTRL_FDEN; /* FD enable */ +} + +static inline void fec_half_duplex(struct eth_device *dev) +{ + struct ether_fcc_info_s *efis = dev->priv; + volatile fec_t *fecp = (volatile fec_t *)(CONFIG_SYS_IMMR + efis->fecp_offset); + + fecp->fec_r_cntrl |= FEC_RCNTRL_DRT; + fecp->fec_x_cntrl &= ~FEC_TCNTRL_FDEN; /* FD disable */ +} + +static void fec_pin_init(int fecidx) +{ + bd_t *bd = gd->bd; + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + volatile fec_t *fecp; + + /* + * only two FECs please + */ + if ((unsigned int)fecidx >= 2) + hang(); + + if (fecidx == 0) + fecp = &immr->im_cpm.cp_fec1; + else + fecp = &immr->im_cpm.cp_fec2; + + /* + * Set MII speed to 2.5 MHz or slightly below. + * * According to the MPC860T (Rev. D) Fast ethernet controller user + * * manual (6.2.14), + * * the MII management interface clock must be less than or equal + * * to 2.5 MHz. + * * This MDC frequency is equal to system clock / (2 * MII_SPEED). + * * Then MII_SPEED = system_clock / 2 * 2,5 MHz. + * + * All MII configuration is done via FEC1 registers: + */ + immr->im_cpm.cp_fec1.fec_mii_speed = ((bd->bi_intfreq + 4999999) / 5000000) << 1; + +#if defined(CONFIG_NETTA) || defined(CONFIG_NETPHONE) || defined(CONFIG_NETTA2) + /* our PHYs are the limit at 2.5 MHz */ + fecp->fec_mii_speed <<= 1; +#endif + +#if defined(CONFIG_MPC885_FAMILY) && defined(WANT_MII) + /* use MDC for MII */ + immr->im_ioport.iop_pdpar |= 0x0080; + immr->im_ioport.iop_pddir &= ~0x0080; +#endif + + if (fecidx == 0) { +#if defined(CONFIG_ETHER_ON_FEC1) + +#if defined(CONFIG_MPC885_FAMILY) /* MPC87x/88x have got 2 FECs and different pinout */ + +#if !defined(CONFIG_RMII) + + immr->im_ioport.iop_papar |= 0xf830; + immr->im_ioport.iop_padir |= 0x0830; + immr->im_ioport.iop_padir &= ~0xf000; + + immr->im_cpm.cp_pbpar |= 0x00001001; + immr->im_cpm.cp_pbdir &= ~0x00001001; + + immr->im_ioport.iop_pcpar |= 0x000c; + immr->im_ioport.iop_pcdir &= ~0x000c; + + immr->im_cpm.cp_pepar |= 0x00000003; + immr->im_cpm.cp_pedir |= 0x00000003; + immr->im_cpm.cp_peso &= ~0x00000003; + + immr->im_cpm.cp_cptr &= ~0x00000100; + +#else + +#if !defined(CONFIG_FEC1_PHY_NORXERR) + immr->im_ioport.iop_papar |= 0x1000; + immr->im_ioport.iop_padir &= ~0x1000; +#endif + immr->im_ioport.iop_papar |= 0xe810; + immr->im_ioport.iop_padir |= 0x0810; + immr->im_ioport.iop_padir &= ~0xe000; + + immr->im_cpm.cp_pbpar |= 0x00000001; + immr->im_cpm.cp_pbdir &= ~0x00000001; + + immr->im_cpm.cp_cptr |= 0x00000100; + immr->im_cpm.cp_cptr &= ~0x00000050; + +#endif /* !CONFIG_RMII */ + +#elif !defined(CONFIG_ICU862) && !defined(CONFIG_IAD210) + /* + * Configure all of port D for MII. + */ + immr->im_ioport.iop_pdpar = 0x1fff; + + /* + * Bits moved from Rev. D onward + */ + if ((get_immr(0) & 0xffff) < 0x0501) + immr->im_ioport.iop_pddir = 0x1c58; /* Pre rev. D */ + else + immr->im_ioport.iop_pddir = 0x1fff; /* Rev. D and later */ +#else + /* + * Configure port A for MII. + */ + +#if defined(CONFIG_ICU862) && defined(CONFIG_SYS_DISCOVER_PHY) + + /* + * On the ICU862 board the MII-MDC pin is routed to PD8 pin + * * of CPU, so for this board we need to configure Utopia and + * * enable PD8 to MII-MDC function + */ + immr->im_ioport.iop_pdpar |= 0x4080; +#endif + + /* + * Has Utopia been configured? + */ + if (immr->im_ioport.iop_pdpar & (0x8000 >> 1)) { + /* + * YES - Use MUXED mode for UTOPIA bus. + * This frees Port A for use by MII (see 862UM table 41-6). + */ + immr->im_ioport.utmode &= ~0x80; + } else { + /* + * NO - set SPLIT mode for UTOPIA bus. + * + * This doesn't really effect UTOPIA (which isn't + * enabled anyway) but just tells the 862 + * to use port A for MII (see 862UM table 41-6). + */ + immr->im_ioport.utmode |= 0x80; + } +#endif /* !defined(CONFIG_ICU862) */ + +#endif /* CONFIG_ETHER_ON_FEC1 */ + } else if (fecidx == 1) { + +#if defined(CONFIG_ETHER_ON_FEC2) + +#if defined(CONFIG_MPC885_FAMILY) /* MPC87x/88x have got 2 FECs and different pinout */ + +#if !defined(CONFIG_RMII) + immr->im_cpm.cp_pepar |= 0x0003fffc; + immr->im_cpm.cp_pedir |= 0x0003fffc; + immr->im_cpm.cp_peso &= ~0x000087fc; + immr->im_cpm.cp_peso |= 0x00037800; + + immr->im_cpm.cp_cptr &= ~0x00000080; +#else + +#if !defined(CONFIG_FEC2_PHY_NORXERR) + immr->im_cpm.cp_pepar |= 0x00000010; + immr->im_cpm.cp_pedir |= 0x00000010; + immr->im_cpm.cp_peso &= ~0x00000010; +#endif + immr->im_cpm.cp_pepar |= 0x00039620; + immr->im_cpm.cp_pedir |= 0x00039620; + immr->im_cpm.cp_peso |= 0x00031000; + immr->im_cpm.cp_peso &= ~0x00008620; + + immr->im_cpm.cp_cptr |= 0x00000080; + immr->im_cpm.cp_cptr &= ~0x00000028; +#endif /* CONFIG_RMII */ + +#endif /* CONFIG_MPC885_FAMILY */ + +#endif /* CONFIG_ETHER_ON_FEC2 */ + + } +} + +static int fec_reset(volatile fec_t *fecp) +{ + int i; + + /* Whack a reset. + * A delay is required between a reset of the FEC block and + * initialization of other FEC registers because the reset takes + * some time to complete. If you don't delay, subsequent writes + * to FEC registers might get killed by the reset routine which is + * still in progress. + */ + + fecp->fec_ecntrl = FEC_ECNTRL_PINMUX | FEC_ECNTRL_RESET; + for (i = 0; + (fecp->fec_ecntrl & FEC_ECNTRL_RESET) && (i < FEC_RESET_DELAY); + ++i) { + udelay (1); + } + if (i == FEC_RESET_DELAY) + return -1; + + return 0; +} + +static int fec_init (struct eth_device *dev, bd_t * bd) +{ + struct ether_fcc_info_s *efis = dev->priv; + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + volatile fec_t *fecp = + (volatile fec_t *) (CONFIG_SYS_IMMR + efis->fecp_offset); + int i; + + if (efis->ether_index == 0) { +#if defined(CONFIG_FADS) /* FADS family uses FPGA (BCSR) to control PHYs */ +#if defined(CONFIG_MPC885ADS) + *(vu_char *) BCSR5 &= ~(BCSR5_MII1_EN | BCSR5_MII1_RST); +#else + /* configure FADS for fast (FEC) ethernet, half-duplex */ + /* The LXT970 needs about 50ms to recover from reset, so + * wait for it by discovering the PHY before leaving eth_init(). + */ + { + volatile uint *bcsr4 = (volatile uint *) BCSR4; + + *bcsr4 = (*bcsr4 & ~(BCSR4_FETH_EN | BCSR4_FETHCFG1)) + | (BCSR4_FETHCFG0 | BCSR4_FETHFDE | + BCSR4_FETHRST); + + /* reset the LXT970 PHY */ + *bcsr4 &= ~BCSR4_FETHRST; + udelay (10); + *bcsr4 |= BCSR4_FETHRST; + udelay (10); + } +#endif /* CONFIG_MPC885ADS */ +#endif /* CONFIG_FADS */ + } + +#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) + /* the MII interface is connected to FEC1 + * so for the miiphy_xxx function to work we must + * call mii_init since fec_halt messes the thing up + */ + if (efis->ether_index != 0) + __mii_init(); +#endif + + if (fec_reset(fecp) < 0) + printf ("FEC_RESET_DELAY timeout\n"); + + /* We use strictly polling mode only + */ + fecp->fec_imask = 0; + + /* Clear any pending interrupt + */ + fecp->fec_ievent = 0xffc0; + + /* No need to set the IVEC register */ + + /* Set station address + */ +#define ea dev->enetaddr + fecp->fec_addr_low = (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]); + fecp->fec_addr_high = (ea[4] << 8) | (ea[5]); +#undef ea + +#if defined(CONFIG_CMD_CDP) + /* + * Turn on multicast address hash table + */ + fecp->fec_hash_table_high = 0xffffffff; + fecp->fec_hash_table_low = 0xffffffff; +#else + /* Clear multicast address hash table + */ + fecp->fec_hash_table_high = 0; + fecp->fec_hash_table_low = 0; +#endif + + /* Set maximum receive buffer size. + */ + fecp->fec_r_buff_size = PKT_MAXBLR_SIZE; + + /* Set maximum frame length + */ + fecp->fec_r_hash = PKT_MAXBUF_SIZE; + + /* + * Setup Buffers and Buffer Desriptors + */ + rxIdx = 0; + txIdx = 0; + + if (!rtx) { +#ifdef CONFIG_SYS_ALLOC_DPRAM + rtx = (RTXBD *) (immr->im_cpm.cp_dpmem + + dpram_alloc_align (sizeof (RTXBD), 8)); +#else + rtx = (RTXBD *) (immr->im_cpm.cp_dpmem + CPM_FEC_BASE); +#endif + } + /* + * Setup Receiver Buffer Descriptors (13.14.24.18) + * Settings: + * Empty, Wrap + */ + for (i = 0; i < PKTBUFSRX; i++) { + rtx->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY; + rtx->rxbd[i].cbd_datlen = 0; /* Reset */ + rtx->rxbd[i].cbd_bufaddr = (uint) NetRxPackets[i]; + } + rtx->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP; + + /* + * Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19) + * Settings: + * Last, Tx CRC + */ + for (i = 0; i < TX_BUF_CNT; i++) { + rtx->txbd[i].cbd_sc = BD_ENET_TX_LAST | BD_ENET_TX_TC; + rtx->txbd[i].cbd_datlen = 0; /* Reset */ + rtx->txbd[i].cbd_bufaddr = (uint) (&txbuf[0]); + } + rtx->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP; + + /* Set receive and transmit descriptor base + */ + fecp->fec_r_des_start = (unsigned int) (&rtx->rxbd[0]); + fecp->fec_x_des_start = (unsigned int) (&rtx->txbd[0]); + + /* Enable MII mode + */ +#if 0 /* Full duplex mode */ + fecp->fec_r_cntrl = FEC_RCNTRL_MII_MODE; + fecp->fec_x_cntrl = FEC_TCNTRL_FDEN; +#else /* Half duplex mode */ + fecp->fec_r_cntrl = FEC_RCNTRL_MII_MODE | FEC_RCNTRL_DRT; + fecp->fec_x_cntrl = 0; +#endif + + /* Enable big endian and don't care about SDMA FC. + */ + fecp->fec_fun_code = 0x78000000; + + /* + * Setup the pin configuration of the FEC + */ + fec_pin_init (efis->ether_index); + + rxIdx = 0; + txIdx = 0; + + /* + * Now enable the transmit and receive processing + */ + fecp->fec_ecntrl = FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN; + + if (efis->phy_addr == -1) { +#ifdef CONFIG_SYS_DISCOVER_PHY + /* + * wait for the PHY to wake up after reset + */ + efis->actual_phy_addr = mii_discover_phy (dev); + + if (efis->actual_phy_addr == -1) { + printf ("Unable to discover phy!\n"); + return -1; + } +#else + efis->actual_phy_addr = -1; +#endif + } else { + efis->actual_phy_addr = efis->phy_addr; + } + +#if defined(CONFIG_MII) && defined(CONFIG_RMII) + /* + * adapt the RMII speed to the speed of the phy + */ + if (miiphy_speed (dev->name, efis->actual_phy_addr) == _100BASET) { + fec_100Mbps (dev); + } else { + fec_10Mbps (dev); + } +#endif + +#if defined(CONFIG_MII) + /* + * adapt to the half/full speed settings + */ + if (miiphy_duplex (dev->name, efis->actual_phy_addr) == FULL) { + fec_full_duplex (dev); + } else { + fec_half_duplex (dev); + } +#endif + + /* And last, try to fill Rx Buffer Descriptors */ + fecp->fec_r_des_active = 0x01000000; /* Descriptor polling active */ + + efis->initialized = 1; + + return 0; +} + + +static void fec_halt(struct eth_device* dev) +{ + struct ether_fcc_info_s *efis = dev->priv; + volatile fec_t *fecp = (volatile fec_t *)(CONFIG_SYS_IMMR + efis->fecp_offset); + int i; + + /* avoid halt if initialized; mii gets stuck otherwise */ + if (!efis->initialized) + return; + + /* Whack a reset. + * A delay is required between a reset of the FEC block and + * initialization of other FEC registers because the reset takes + * some time to complete. If you don't delay, subsequent writes + * to FEC registers might get killed by the reset routine which is + * still in progress. + */ + + fecp->fec_ecntrl = FEC_ECNTRL_PINMUX | FEC_ECNTRL_RESET; + for (i = 0; + (fecp->fec_ecntrl & FEC_ECNTRL_RESET) && (i < FEC_RESET_DELAY); + ++i) { + udelay (1); + } + if (i == FEC_RESET_DELAY) { + printf ("FEC_RESET_DELAY timeout\n"); + return; + } + + efis->initialized = 0; +} + +#if defined(CONFIG_SYS_DISCOVER_PHY) || defined(CONFIG_MII) || defined(CONFIG_CMD_MII) + +/* Make MII read/write commands for the FEC. +*/ + +#define mk_mii_read(ADDR, REG) (0x60020000 | ((ADDR << 23) | \ + (REG & 0x1f) << 18)) + +#define mk_mii_write(ADDR, REG, VAL) (0x50020000 | ((ADDR << 23) | \ + (REG & 0x1f) << 18) | \ + (VAL & 0xffff)) + +/* Interrupt events/masks. +*/ +#define FEC_ENET_HBERR ((uint)0x80000000) /* Heartbeat error */ +#define FEC_ENET_BABR ((uint)0x40000000) /* Babbling receiver */ +#define FEC_ENET_BABT ((uint)0x20000000) /* Babbling transmitter */ +#define FEC_ENET_GRA ((uint)0x10000000) /* Graceful stop complete */ +#define FEC_ENET_TXF ((uint)0x08000000) /* Full frame transmitted */ +#define FEC_ENET_TXB ((uint)0x04000000) /* A buffer was transmitted */ +#define FEC_ENET_RXF ((uint)0x02000000) /* Full frame received */ +#define FEC_ENET_RXB ((uint)0x01000000) /* A buffer was received */ +#define FEC_ENET_MII ((uint)0x00800000) /* MII interrupt */ +#define FEC_ENET_EBERR ((uint)0x00400000) /* SDMA bus error */ + +/* PHY identification + */ +#define PHY_ID_LXT970 0x78100000 /* LXT970 */ +#define PHY_ID_LXT971 0x001378e0 /* LXT971 and 972 */ +#define PHY_ID_82555 0x02a80150 /* Intel 82555 */ +#define PHY_ID_QS6612 0x01814400 /* QS6612 */ +#define PHY_ID_AMD79C784 0x00225610 /* AMD 79C784 */ +#define PHY_ID_LSI80225 0x0016f870 /* LSI 80225 */ +#define PHY_ID_LSI80225B 0x0016f880 /* LSI 80225/B */ +#define PHY_ID_DM9161 0x0181B880 /* Davicom DM9161 */ +#define PHY_ID_KSM8995M 0x00221450 /* MICREL KS8995MA */ + +/* send command to phy using mii, wait for result */ +static uint +mii_send(uint mii_cmd) +{ + uint mii_reply; + volatile fec_t *ep; + int cnt; + + ep = &(((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_fec); + + ep->fec_mii_data = mii_cmd; /* command to phy */ + + /* wait for mii complete */ + cnt = 0; + while (!(ep->fec_ievent & FEC_ENET_MII)) { + if (++cnt > 1000) { + printf("mii_send STUCK!\n"); + break; + } + } + mii_reply = ep->fec_mii_data; /* result from phy */ + ep->fec_ievent = FEC_ENET_MII; /* clear MII complete */ +#if 0 + printf("%s[%d] %s: sent=0x%8.8x, reply=0x%8.8x\n", + __FILE__,__LINE__,__FUNCTION__,mii_cmd,mii_reply); +#endif + return (mii_reply & 0xffff); /* data read from phy */ +} +#endif + +#if defined(CONFIG_SYS_DISCOVER_PHY) +static int mii_discover_phy(struct eth_device *dev) +{ +#define MAX_PHY_PASSES 11 + uint phyno; + int pass; + uint phytype; + int phyaddr; + + phyaddr = -1; /* didn't find a PHY yet */ + for (pass = 1; pass <= MAX_PHY_PASSES && phyaddr < 0; ++pass) { + if (pass > 1) { + /* PHY may need more time to recover from reset. + * The LXT970 needs 50ms typical, no maximum is + * specified, so wait 10ms before try again. + * With 11 passes this gives it 100ms to wake up. + */ + udelay(10000); /* wait 10ms */ + } + for (phyno = 0; phyno < 32 && phyaddr < 0; ++phyno) { + phytype = mii_send(mk_mii_read(phyno, PHY_PHYIDR2)); +#ifdef ET_DEBUG + printf("PHY type 0x%x pass %d type ", phytype, pass); +#endif + if (phytype != 0xffff) { + phyaddr = phyno; + phytype |= mii_send(mk_mii_read(phyno, + PHY_PHYIDR1)) << 16; + +#ifdef ET_DEBUG + printf("PHY @ 0x%x pass %d type ",phyno,pass); + switch (phytype & 0xfffffff0) { + case PHY_ID_LXT970: + printf("LXT970\n"); + break; + case PHY_ID_LXT971: + printf("LXT971\n"); + break; + case PHY_ID_82555: + printf("82555\n"); + break; + case PHY_ID_QS6612: + printf("QS6612\n"); + break; + case PHY_ID_AMD79C784: + printf("AMD79C784\n"); + break; + case PHY_ID_LSI80225B: + printf("LSI L80225/B\n"); + break; + case PHY_ID_DM9161: + printf("Davicom DM9161\n"); + break; + case PHY_ID_KSM8995M: + printf("MICREL KS8995M\n"); + break; + default: + printf("0x%08x\n", phytype); + break; + } +#endif + } + } + } + if (phyaddr < 0) { + printf("No PHY device found.\n"); + } + return phyaddr; +} +#endif /* CONFIG_SYS_DISCOVER_PHY */ + +#if (defined(CONFIG_MII) || defined(CONFIG_CMD_MII)) && !defined(CONFIG_BITBANGMII) + +/**************************************************************************** + * mii_init -- Initialize the MII via FEC 1 for MII command without ethernet + * This function is a subset of eth_init + **************************************************************************** + */ +static void __mii_init(void) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + volatile fec_t *fecp = &(immr->im_cpm.cp_fec); + + if (fec_reset(fecp) < 0) + printf ("FEC_RESET_DELAY timeout\n"); + + /* We use strictly polling mode only + */ + fecp->fec_imask = 0; + + /* Clear any pending interrupt + */ + fecp->fec_ievent = 0xffc0; + + /* Now enable the transmit and receive processing + */ + fecp->fec_ecntrl = FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN; +} + +void mii_init (void) +{ + int i; + + __mii_init(); + + /* Setup the pin configuration of the FEC(s) + */ + for (i = 0; i < sizeof(ether_fcc_info) / sizeof(ether_fcc_info[0]); i++) + fec_pin_init(ether_fcc_info[i].ether_index); +} + +/***************************************************************************** + * Read and write a MII PHY register, routines used by MII Utilities + * + * FIXME: These routines are expected to return 0 on success, but mii_send + * does _not_ return an error code. Maybe 0xFFFF means error, i.e. + * no PHY connected... + * For now always return 0. + * FIXME: These routines only work after calling eth_init() at least once! + * Otherwise they hang in mii_send() !!! Sorry! + *****************************************************************************/ + +int fec8xx_miiphy_read(char *devname, unsigned char addr, + unsigned char reg, unsigned short *value) +{ + short rdreg; /* register working value */ + +#ifdef MII_DEBUG + printf ("miiphy_read(0x%x) @ 0x%x = ", reg, addr); +#endif + rdreg = mii_send(mk_mii_read(addr, reg)); + + *value = rdreg; +#ifdef MII_DEBUG + printf ("0x%04x\n", *value); +#endif + return 0; +} + +int fec8xx_miiphy_write(char *devname, unsigned char addr, + unsigned char reg, unsigned short value) +{ + short rdreg; /* register working value */ +#ifdef MII_DEBUG + printf ("miiphy_write(0x%x) @ 0x%x = ", reg, addr); +#endif + rdreg = mii_send(mk_mii_write(addr, reg, value)); + +#ifdef MII_DEBUG + printf ("0x%04x\n", value); +#endif + return 0; +} +#endif + +#endif diff --git a/arch/ppc/cpu/mpc8xx/fec.h b/arch/ppc/cpu/mpc8xx/fec.h new file mode 100644 index 0000000..a49417c --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/fec.h @@ -0,0 +1,28 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _FEC_H_ +#define _FEC_H_ + + +#endif /* _FEC_H_ */ diff --git a/arch/ppc/cpu/mpc8xx/i2c.c b/arch/ppc/cpu/mpc8xx/i2c.c new file mode 100644 index 0000000..338caba --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/i2c.c @@ -0,0 +1,707 @@ +/* + * (C) Copyright 2000 + * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it + * + * (C) Copyright 2000 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Back ported to the 8xx platform (from the 8260 platform) by + * Murray.Jensen@cmst.csiro.au, 27-Jan-01. + */ + +#include <common.h> + +#ifdef CONFIG_HARD_I2C + +#include <commproc.h> +#include <i2c.h> +#ifdef CONFIG_LWMON +#include <watchdog.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +/* define to enable debug messages */ +#undef DEBUG_I2C + +/* tx/rx timeout (we need the i2c early, so we don't use get_timer()) */ +#define TOUT_LOOP 1000000 + +#define NUM_RX_BDS 4 +#define NUM_TX_BDS 4 +#define MAX_TX_SPACE 256 +#define I2C_RXTX_LEN 128 /* maximum tx/rx buffer length */ + +typedef struct I2C_BD +{ + unsigned short status; + unsigned short length; + unsigned char *addr; +} I2C_BD; +#define BD_I2C_TX_START 0x0400 /* special status for i2c: Start condition */ + +#define BD_I2C_TX_CL 0x0001 /* collision error */ +#define BD_I2C_TX_UN 0x0002 /* underflow error */ +#define BD_I2C_TX_NAK 0x0004 /* no acknowledge error */ +#define BD_I2C_TX_ERR (BD_I2C_TX_NAK|BD_I2C_TX_UN|BD_I2C_TX_CL) + +#define BD_I2C_RX_ERR BD_SC_OV + +typedef void (*i2c_ecb_t)(int, int); /* error callback function */ + +/* This structure keeps track of the bd and buffer space usage. */ +typedef struct i2c_state { + int rx_idx; /* index to next free Rx BD */ + int tx_idx; /* index to next free Tx BD */ + void *rxbd; /* pointer to next free Rx BD */ + void *txbd; /* pointer to next free Tx BD */ + int tx_space; /* number of Tx bytes left */ + unsigned char *tx_buf; /* pointer to free Tx area */ + i2c_ecb_t err_cb; /* error callback function */ +} i2c_state_t; + + +/* flags for i2c_send() and i2c_receive() */ +#define I2CF_ENABLE_SECONDARY 0x01 /* secondary_address is valid */ +#define I2CF_START_COND 0x02 /* tx: generate start condition */ +#define I2CF_STOP_COND 0x04 /* tx: generate stop condition */ + +/* return codes */ +#define I2CERR_NO_BUFFERS 0x01 /* no more BDs or buffer space */ +#define I2CERR_MSG_TOO_LONG 0x02 /* tried to send/receive to much data */ +#define I2CERR_TIMEOUT 0x03 /* timeout in i2c_doio() */ +#define I2CERR_QUEUE_EMPTY 0x04 /* i2c_doio called without send/receive */ + +/* error callback flags */ +#define I2CECB_RX_ERR 0x10 /* this is a receive error */ +#define I2CECB_RX_ERR_OV 0x02 /* receive overrun error */ +#define I2CECB_RX_MASK 0x0f /* mask for error bits */ +#define I2CECB_TX_ERR 0x20 /* this is a transmit error */ +#define I2CECB_TX_CL 0x01 /* transmit collision error */ +#define I2CECB_TX_UN 0x02 /* transmit underflow error */ +#define I2CECB_TX_NAK 0x04 /* transmit no ack error */ +#define I2CECB_TX_MASK 0x0f /* mask for error bits */ +#define I2CECB_TIMEOUT 0x40 /* this is a timeout error */ + +#ifdef DEBUG_I2C +#define PRINTD(x) printf x +#else +#define PRINTD(x) +#endif + +/* + * Returns the best value of I2BRG to meet desired clock speed of I2C with + * input parameters (clock speed, filter, and predivider value). + * It returns computer speed value and the difference between it and desired + * speed. + */ +static inline int +i2c_roundrate(int hz, int speed, int filter, int modval, + int *brgval, int *totspeed) +{ + int moddiv = 1 << (5-(modval & 3)), brgdiv, div; + + PRINTD(("\t[I2C] trying hz=%d, speed=%d, filter=%d, modval=%d\n", + hz, speed, filter, modval)); + + div = moddiv * speed; + brgdiv = (hz + div - 1) / div; + + PRINTD(("\t\tmoddiv=%d, brgdiv=%d\n", moddiv, brgdiv)); + + *brgval = ((brgdiv + 1) / 2) - 3 - (2*filter); + + if ((*brgval < 0) || (*brgval > 255)) { + PRINTD(("\t\trejected brgval=%d\n", *brgval)); + return -1; + } + + brgdiv = 2 * (*brgval + 3 + (2 * filter)); + div = moddiv * brgdiv ; + *totspeed = hz / div; + + PRINTD(("\t\taccepted brgval=%d, totspeed=%d\n", *brgval, *totspeed)); + + return 0; +} + +/* + * Sets the I2C clock predivider and divider to meet required clock speed. + */ +static int +i2c_setrate (int hz, int speed) +{ + immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + volatile i2c8xx_t *i2c = (i2c8xx_t *) & immap->im_i2c; + int brgval, + modval, /* 0-3 */ + bestspeed_diff = speed, + bestspeed_brgval = 0, + bestspeed_modval = 0, + bestspeed_filter = 0, + totspeed, + filter = 0; /* Use this fixed value */ + + for (modval = 0; modval < 4; modval++) { + if (i2c_roundrate(hz,speed,filter,modval,&brgval,&totspeed) == 0) { + int diff = speed - totspeed; + + if ((diff >= 0) && (diff < bestspeed_diff)) { + bestspeed_diff = diff; + bestspeed_modval = modval; + bestspeed_brgval = brgval; + bestspeed_filter = filter; + } + } + } + + PRINTD (("[I2C] Best is:\n")); + PRINTD (("[I2C] CPU=%dhz RATE=%d F=%d I2MOD=%08x I2BRG=%08x DIFF=%dhz\n", + hz, + speed, + bestspeed_filter, + bestspeed_modval, + bestspeed_brgval, + bestspeed_diff)); + + i2c->i2c_i2mod |= ((bestspeed_modval & 3) << 1) | (bestspeed_filter << 3); + i2c->i2c_i2brg = bestspeed_brgval & 0xff; + + PRINTD (("[I2C] i2mod=%08x i2brg=%08x\n", i2c->i2c_i2mod, + i2c->i2c_i2brg)); + + return 1; +} + +void +i2c_init(int speed, int slaveaddr) +{ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR ; + volatile cpm8xx_t *cp = (cpm8xx_t *)&immap->im_cpm; + volatile i2c8xx_t *i2c = (i2c8xx_t *)&immap->im_i2c; + volatile iic_t *iip = (iic_t *)&cp->cp_dparam[PROFF_IIC]; + ulong rbase, tbase; + volatile I2C_BD *rxbd, *txbd; + uint dpaddr; + +#ifdef CONFIG_SYS_I2C_INIT_BOARD + /* call board specific i2c bus reset routine before accessing the */ + /* environment, which might be in a chip on that bus. For details */ + /* about this problem see doc/I2C_Edge_Conditions. */ + i2c_init_board(); +#endif + +#ifdef CONFIG_SYS_I2C_UCODE_PATCH + iip = (iic_t *)&cp->cp_dpmem[iip->iic_rpbase]; +#else + /* Disable relocation */ + iip->iic_rpbase = 0; +#endif + +#ifdef CONFIG_SYS_ALLOC_DPRAM + dpaddr = iip->iic_rbase; + if (dpaddr == 0) { + /* need to allocate dual port ram */ + dpaddr = dpram_alloc_align( + (NUM_RX_BDS * sizeof(I2C_BD)) + (NUM_TX_BDS * sizeof(I2C_BD)) + + MAX_TX_SPACE, 8); + } +#else + dpaddr = CPM_I2C_BASE; +#endif + + /* + * initialise data in dual port ram: + * + * dpaddr->rbase -> rx BD (NUM_RX_BDS * sizeof(I2C_BD) bytes) + * tbase -> tx BD (NUM_TX_BDS * sizeof(I2C_BD) bytes) + * tx buffer (MAX_TX_SPACE bytes) + */ + + rbase = dpaddr; + tbase = rbase + NUM_RX_BDS * sizeof(I2C_BD); + + /* Initialize Port B I2C pins. */ + cp->cp_pbpar |= 0x00000030; + cp->cp_pbdir |= 0x00000030; + cp->cp_pbodr |= 0x00000030; + + /* Disable interrupts */ + i2c->i2c_i2mod = 0x00; + i2c->i2c_i2cmr = 0x00; + i2c->i2c_i2cer = 0xff; + i2c->i2c_i2add = slaveaddr; + + /* + * Set the I2C BRG Clock division factor from desired i2c rate + * and current CPU rate (we assume sccr dfbgr field is 0; + * divide BRGCLK by 1) + */ + PRINTD(("[I2C] Setting rate...\n")); + i2c_setrate (gd->cpu_clk, CONFIG_SYS_I2C_SPEED) ; + + /* Set I2C controller in master mode */ + i2c->i2c_i2com = 0x01; + + /* Set SDMA bus arbitration level to 5 (SDCR) */ + immap->im_siu_conf.sc_sdcr = 0x0001 ; + + /* Initialize Tx/Rx parameters */ + iip->iic_rbase = rbase; + iip->iic_tbase = tbase; + rxbd = (I2C_BD *)((unsigned char *)&cp->cp_dpmem[iip->iic_rbase]); + txbd = (I2C_BD *)((unsigned char *)&cp->cp_dpmem[iip->iic_tbase]); + + PRINTD(("[I2C] rbase = %04x\n", iip->iic_rbase)); + PRINTD(("[I2C] tbase = %04x\n", iip->iic_tbase)); + PRINTD(("[I2C] rxbd = %08x\n", (int)rxbd)); + PRINTD(("[I2C] txbd = %08x\n", (int)txbd)); + + /* Set big endian byte order */ + iip->iic_tfcr = 0x10; + iip->iic_rfcr = 0x10; + + /* Set maximum receive size. */ + iip->iic_mrblr = I2C_RXTX_LEN; + +#ifdef CONFIG_SYS_I2C_UCODE_PATCH + /* + * Initialize required parameters if using microcode patch. + */ + iip->iic_rbptr = iip->iic_rbase; + iip->iic_tbptr = iip->iic_tbase; + iip->iic_rstate = 0; + iip->iic_tstate = 0; +#else + cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_I2C, CPM_CR_INIT_TRX) | CPM_CR_FLG; + do { + __asm__ __volatile__ ("eieio"); + } while (cp->cp_cpcr & CPM_CR_FLG); +#endif + + /* Clear events and interrupts */ + i2c->i2c_i2cer = 0xff; + i2c->i2c_i2cmr = 0x00; +} + +static void +i2c_newio(i2c_state_t *state) +{ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR ; + volatile cpm8xx_t *cp = (cpm8xx_t *)&immap->im_cpm; + volatile iic_t *iip = (iic_t *)&cp->cp_dparam[PROFF_IIC]; + + PRINTD(("[I2C] i2c_newio\n")); + +#ifdef CONFIG_SYS_I2C_UCODE_PATCH + iip = (iic_t *)&cp->cp_dpmem[iip->iic_rpbase]; +#endif + state->rx_idx = 0; + state->tx_idx = 0; + state->rxbd = (void*)&cp->cp_dpmem[iip->iic_rbase]; + state->txbd = (void*)&cp->cp_dpmem[iip->iic_tbase]; + state->tx_space = MAX_TX_SPACE; + state->tx_buf = (uchar*)state->txbd + NUM_TX_BDS * sizeof(I2C_BD); + state->err_cb = NULL; + + PRINTD(("[I2C] rxbd = %08x\n", (int)state->rxbd)); + PRINTD(("[I2C] txbd = %08x\n", (int)state->txbd)); + PRINTD(("[I2C] tx_buf = %08x\n", (int)state->tx_buf)); + + /* clear the buffer memory */ + memset((char *)state->tx_buf, 0, MAX_TX_SPACE); +} + +static int +i2c_send(i2c_state_t *state, + unsigned char address, + unsigned char secondary_address, + unsigned int flags, + unsigned short size, + unsigned char *dataout) +{ + volatile I2C_BD *txbd; + int i,j; + + PRINTD(("[I2C] i2c_send add=%02d sec=%02d flag=%02d size=%d\n", + address, secondary_address, flags, size)); + + /* trying to send message larger than BD */ + if (size > I2C_RXTX_LEN) + return I2CERR_MSG_TOO_LONG; + + /* no more free bds */ + if (state->tx_idx >= NUM_TX_BDS || state->tx_space < (2 + size)) + return I2CERR_NO_BUFFERS; + + txbd = (I2C_BD *)state->txbd; + txbd->addr = state->tx_buf; + + PRINTD(("[I2C] txbd = %08x\n", (int)txbd)); + + if (flags & I2CF_START_COND) { + PRINTD(("[I2C] Formatting addresses...\n")); + if (flags & I2CF_ENABLE_SECONDARY) { + txbd->length = size + 2; /* Length of msg + dest addr */ + txbd->addr[0] = address << 1; + txbd->addr[1] = secondary_address; + i = 2; + } else { + txbd->length = size + 1; /* Length of msg + dest addr */ + txbd->addr[0] = address << 1; /* Write dest addr to BD */ + i = 1; + } + } else { + txbd->length = size; /* Length of message */ + i = 0; + } + + /* set up txbd */ + txbd->status = BD_SC_READY; + if (flags & I2CF_START_COND) + txbd->status |= BD_I2C_TX_START; + if (flags & I2CF_STOP_COND) + txbd->status |= BD_SC_LAST | BD_SC_WRAP; + + /* Copy data to send into buffer */ + PRINTD(("[I2C] copy data...\n")); + for(j = 0; j < size; i++, j++) + txbd->addr[i] = dataout[j]; + + PRINTD(("[I2C] txbd: length=0x%04x status=0x%04x addr[0]=0x%02x addr[1]=0x%02x\n", + txbd->length, + txbd->status, + txbd->addr[0], + txbd->addr[1])); + + /* advance state */ + state->tx_buf += txbd->length; + state->tx_space -= txbd->length; + state->tx_idx++; + state->txbd = (void*)(txbd + 1); + + return 0; +} + +static int +i2c_receive(i2c_state_t *state, + unsigned char address, + unsigned char secondary_address, + unsigned int flags, + unsigned short size_to_expect, + unsigned char *datain) +{ + volatile I2C_BD *rxbd, *txbd; + + PRINTD(("[I2C] i2c_receive %02d %02d %02d\n", address, secondary_address, flags)); + + /* Expected to receive too much */ + if (size_to_expect > I2C_RXTX_LEN) + return I2CERR_MSG_TOO_LONG; + + /* no more free bds */ + if (state->tx_idx >= NUM_TX_BDS || state->rx_idx >= NUM_RX_BDS + || state->tx_space < 2) + return I2CERR_NO_BUFFERS; + + rxbd = (I2C_BD *)state->rxbd; + txbd = (I2C_BD *)state->txbd; + + PRINTD(("[I2C] rxbd = %08x\n", (int)rxbd)); + PRINTD(("[I2C] txbd = %08x\n", (int)txbd)); + + txbd->addr = state->tx_buf; + + /* set up TXBD for destination address */ + if (flags & I2CF_ENABLE_SECONDARY) { + txbd->length = 2; + txbd->addr[0] = address << 1; /* Write data */ + txbd->addr[1] = secondary_address; /* Internal address */ + txbd->status = BD_SC_READY; + } else { + txbd->length = 1 + size_to_expect; + txbd->addr[0] = (address << 1) | 0x01; + txbd->status = BD_SC_READY; + memset(&txbd->addr[1], 0, txbd->length); + } + + /* set up rxbd for reception */ + rxbd->status = BD_SC_EMPTY; + rxbd->length = size_to_expect; + rxbd->addr = datain; + + txbd->status |= BD_I2C_TX_START; + if (flags & I2CF_STOP_COND) { + txbd->status |= BD_SC_LAST | BD_SC_WRAP; + rxbd->status |= BD_SC_WRAP; + } + + PRINTD(("[I2C] txbd: length=0x%04x status=0x%04x addr[0]=0x%02x addr[1]=0x%02x\n", + txbd->length, + txbd->status, + txbd->addr[0], + txbd->addr[1])); + PRINTD(("[I2C] rxbd: length=0x%04x status=0x%04x addr[0]=0x%02x addr[1]=0x%02x\n", + rxbd->length, + rxbd->status, + rxbd->addr[0], + rxbd->addr[1])); + + /* advance state */ + state->tx_buf += txbd->length; + state->tx_space -= txbd->length; + state->tx_idx++; + state->txbd = (void*)(txbd + 1); + state->rx_idx++; + state->rxbd = (void*)(rxbd + 1); + + return 0; +} + + +static int i2c_doio(i2c_state_t *state) +{ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR ; + volatile cpm8xx_t *cp = (cpm8xx_t *)&immap->im_cpm; + volatile i2c8xx_t *i2c = (i2c8xx_t *)&immap->im_i2c; + volatile iic_t *iip = (iic_t *)&cp->cp_dparam[PROFF_IIC]; + volatile I2C_BD *txbd, *rxbd; + volatile int j = 0; + + PRINTD(("[I2C] i2c_doio\n")); + +#ifdef CONFIG_SYS_I2C_UCODE_PATCH + iip = (iic_t *)&cp->cp_dpmem[iip->iic_rpbase]; +#endif + + if (state->tx_idx <= 0 && state->rx_idx <= 0) { + PRINTD(("[I2C] No I/O is queued\n")); + return I2CERR_QUEUE_EMPTY; + } + + iip->iic_rbptr = iip->iic_rbase; + iip->iic_tbptr = iip->iic_tbase; + + /* Enable I2C */ + PRINTD(("[I2C] Enabling I2C...\n")); + i2c->i2c_i2mod |= 0x01; + + /* Begin transmission */ + i2c->i2c_i2com |= 0x80; + + /* Loop until transmit & receive completed */ + + if (state->tx_idx > 0) { + txbd = ((I2C_BD*)state->txbd) - 1; + PRINTD(("[I2C] Transmitting...(txbd=0x%08lx)\n", (ulong)txbd)); + while((txbd->status & BD_SC_READY) && (j++ < TOUT_LOOP)) { + if (ctrlc()) { + return (-1); + } + __asm__ __volatile__ ("eieio"); + } + } + + if ((state->rx_idx > 0) && (j < TOUT_LOOP)) { + rxbd = ((I2C_BD*)state->rxbd) - 1; + PRINTD(("[I2C] Receiving...(rxbd=0x%08lx)\n", (ulong)rxbd)); + while((rxbd->status & BD_SC_EMPTY) && (j++ < TOUT_LOOP)) { + if (ctrlc()) { + return (-1); + } + __asm__ __volatile__ ("eieio"); + } + } + + /* Turn off I2C */ + i2c->i2c_i2mod &= ~0x01; + + if (state->err_cb != NULL) { + int n, i, b; + + /* + * if we have an error callback function, look at the + * error bits in the bd status and pass them back + */ + + if ((n = state->tx_idx) > 0) { + for (i = 0; i < n; i++) { + txbd = ((I2C_BD*)state->txbd) - (n - i); + if ((b = txbd->status & BD_I2C_TX_ERR) != 0) + (*state->err_cb)(I2CECB_TX_ERR|b, i); + } + } + + if ((n = state->rx_idx) > 0) { + for (i = 0; i < n; i++) { + rxbd = ((I2C_BD*)state->rxbd) - (n - i); + if ((b = rxbd->status & BD_I2C_RX_ERR) != 0) + (*state->err_cb)(I2CECB_RX_ERR|b, i); + } + } + + if (j >= TOUT_LOOP) + (*state->err_cb)(I2CECB_TIMEOUT, 0); + } + + return (j >= TOUT_LOOP) ? I2CERR_TIMEOUT : 0; +} + +static int had_tx_nak; + +static void +i2c_test_callback(int flags, int xnum) +{ + if ((flags & I2CECB_TX_ERR) && (flags & I2CECB_TX_NAK)) + had_tx_nak = 1; +} + +int i2c_probe(uchar chip) +{ + i2c_state_t state; + int rc; + uchar buf[1]; + + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + + i2c_newio(&state); + + state.err_cb = i2c_test_callback; + had_tx_nak = 0; + + rc = i2c_receive(&state, chip, 0, I2CF_START_COND|I2CF_STOP_COND, 1, buf); + + if (rc != 0) + return (rc); + + rc = i2c_doio(&state); + + if ((rc != 0) && (rc != I2CERR_TIMEOUT)) + return (rc); + + return (had_tx_nak); +} + +int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len) +{ + i2c_state_t state; + uchar xaddr[4]; + int rc; + +#ifdef CONFIG_LWMON + WATCHDOG_RESET(); +#endif + + xaddr[0] = (addr >> 24) & 0xFF; + xaddr[1] = (addr >> 16) & 0xFF; + xaddr[2] = (addr >> 8) & 0xFF; + xaddr[3] = addr & 0xFF; + +#ifdef CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW + /* + * EEPROM chips that implement "address overflow" are ones like + * Catalyst 24WC04/08/16 which has 9/10/11 bits of address and the + * extra bits end up in the "chip address" bit slots. This makes + * a 24WC08 (1Kbyte) chip look like four 256 byte chips. + * + * Note that we consider the length of the address field to still + * be one byte because the extra address bits are hidden in the + * chip address. + */ + chip |= ((addr >> (alen * 8)) & CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW); +#endif + + i2c_newio(&state); + + rc = i2c_send(&state, chip, 0, I2CF_START_COND, alen, &xaddr[4-alen]); + if (rc != 0) { + if (gd->have_console) + printf("i2c_read: i2c_send failed (%d)\n", rc); + return 1; + } + + rc = i2c_receive(&state, chip, 0, I2CF_STOP_COND, len, buffer); + if (rc != 0) { + if (gd->have_console) + printf("i2c_read: i2c_receive failed (%d)\n", rc); + return 1; + } + + rc = i2c_doio(&state); + if (rc != 0) { + if (gd->have_console) + printf("i2c_read: i2c_doio failed (%d)\n", rc); + return 1; + } + return 0; +} + +int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len) +{ + i2c_state_t state; + uchar xaddr[4]; + int rc; + + xaddr[0] = (addr >> 24) & 0xFF; + xaddr[1] = (addr >> 16) & 0xFF; + xaddr[2] = (addr >> 8) & 0xFF; + xaddr[3] = addr & 0xFF; + +#ifdef CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW + /* + * EEPROM chips that implement "address overflow" are ones like + * Catalyst 24WC04/08/16 which has 9/10/11 bits of address and the + * extra bits end up in the "chip address" bit slots. This makes + * a 24WC08 (1Kbyte) chip look like four 256 byte chips. + * + * Note that we consider the length of the address field to still + * be one byte because the extra address bits are hidden in the + * chip address. + */ + chip |= ((addr >> (alen * 8)) & CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW); +#endif + + i2c_newio(&state); + + rc = i2c_send(&state, chip, 0, I2CF_START_COND, alen, &xaddr[4-alen]); + if (rc != 0) { + if (gd->have_console) + printf("i2c_write: first i2c_send failed (%d)\n", rc); + return 1; + } + + rc = i2c_send(&state, 0, 0, I2CF_STOP_COND, len, buffer); + if (rc != 0) { + if (gd->have_console) + printf("i2c_write: second i2c_send failed (%d)\n", rc); + return 1; + } + + rc = i2c_doio(&state); + if (rc != 0) { + if (gd->have_console) + printf("i2c_write: i2c_doio failed (%d)\n", rc); + return 1; + } + return 0; +} + +#endif /* CONFIG_HARD_I2C */ diff --git a/arch/ppc/cpu/mpc8xx/interrupts.c b/arch/ppc/cpu/mpc8xx/interrupts.c new file mode 100644 index 0000000..5daa6b2 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/interrupts.c @@ -0,0 +1,294 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc8xx.h> +#include <mpc8xx_irq.h> +#include <asm/processor.h> +#include <commproc.h> + +/************************************************************************/ + +/* + * CPM interrupt vector functions. + */ +struct interrupt_action { + interrupt_handler_t *handler; + void *arg; +}; + +static struct interrupt_action cpm_vecs[CPMVEC_NR]; +static struct interrupt_action irq_vecs[NR_IRQS]; + +static void cpm_interrupt_init (void); +static void cpm_interrupt (void *regs); + +/************************************************************************/ + +int interrupt_init_cpu (unsigned *decrementer_count) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + + *decrementer_count = get_tbclk () / CONFIG_SYS_HZ; + + /* disable all interrupts */ + immr->im_siu_conf.sc_simask = 0; + + /* Configure CPM interrupts */ + cpm_interrupt_init (); + + return (0); +} + +/************************************************************************/ + +/* + * Handle external interrupts + */ +void external_interrupt (struct pt_regs *regs) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + int irq; + ulong simask, newmask; + ulong vec, v_bit; + + /* + * read the SIVEC register and shift the bits down + * to get the irq number + */ + vec = immr->im_siu_conf.sc_sivec; + irq = vec >> 26; + v_bit = 0x80000000UL >> irq; + + /* + * Read Interrupt Mask Register and Mask Interrupts + */ + simask = immr->im_siu_conf.sc_simask; + newmask = simask & (~(0xFFFF0000 >> irq)); + immr->im_siu_conf.sc_simask = newmask; + + if (!(irq & 0x1)) { /* External Interrupt ? */ + ulong siel; + + /* + * Read Interrupt Edge/Level Register + */ + siel = immr->im_siu_conf.sc_siel; + + if (siel & v_bit) { /* edge triggered interrupt ? */ + /* + * Rewrite SIPEND Register to clear interrupt + */ + immr->im_siu_conf.sc_sipend = v_bit; + } + } + + if (irq_vecs[irq].handler != NULL) { + irq_vecs[irq].handler (irq_vecs[irq].arg); + } else { + printf ("\nBogus External Interrupt IRQ %d Vector %ld\n", + irq, vec); + /* turn off the bogus interrupt to avoid it from now */ + simask &= ~v_bit; + } + /* + * Re-Enable old Interrupt Mask + */ + immr->im_siu_conf.sc_simask = simask; +} + +/************************************************************************/ + +/* + * CPM interrupt handler + */ +static void cpm_interrupt (void *regs) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + uint vec; + + /* + * Get the vector by setting the ACK bit + * and then reading the register. + */ + immr->im_cpic.cpic_civr = 1; + vec = immr->im_cpic.cpic_civr; + vec >>= 11; + + if (cpm_vecs[vec].handler != NULL) { + (*cpm_vecs[vec].handler) (cpm_vecs[vec].arg); + } else { + immr->im_cpic.cpic_cimr &= ~(1 << vec); + printf ("Masking bogus CPM interrupt vector 0x%x\n", vec); + } + /* + * After servicing the interrupt, + * we have to remove the status indicator. + */ + immr->im_cpic.cpic_cisr |= (1 << vec); +} + +/* + * The CPM can generate the error interrupt when there is a race + * condition between generating and masking interrupts. All we have + * to do is ACK it and return. This is a no-op function so we don't + * need any special tests in the interrupt handler. + */ +static void cpm_error_interrupt (void *dummy) +{ +} + +/************************************************************************/ +/* + * Install and free an interrupt handler + */ +void irq_install_handler (int vec, interrupt_handler_t * handler, + void *arg) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + + if ((vec & CPMVEC_OFFSET) != 0) { + /* CPM interrupt */ + vec &= 0xffff; + if (cpm_vecs[vec].handler != NULL) { + printf ("CPM interrupt 0x%x replacing 0x%x\n", + (uint) handler, + (uint) cpm_vecs[vec].handler); + } + cpm_vecs[vec].handler = handler; + cpm_vecs[vec].arg = arg; + immr->im_cpic.cpic_cimr |= (1 << vec); +#if 0 + printf ("Install CPM interrupt for vector %d ==> %p\n", + vec, handler); +#endif + } else { + /* SIU interrupt */ + if (irq_vecs[vec].handler != NULL) { + printf ("SIU interrupt %d 0x%x replacing 0x%x\n", + vec, + (uint) handler, + (uint) cpm_vecs[vec].handler); + } + irq_vecs[vec].handler = handler; + irq_vecs[vec].arg = arg; + immr->im_siu_conf.sc_simask |= 1 << (31 - vec); +#if 0 + printf ("Install SIU interrupt for vector %d ==> %p\n", + vec, handler); +#endif + } +} + +void irq_free_handler (int vec) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + + if ((vec & CPMVEC_OFFSET) != 0) { + /* CPM interrupt */ + vec &= 0xffff; +#if 0 + printf ("Free CPM interrupt for vector %d ==> %p\n", + vec, cpm_vecs[vec].handler); +#endif + immr->im_cpic.cpic_cimr &= ~(1 << vec); + cpm_vecs[vec].handler = NULL; + cpm_vecs[vec].arg = NULL; + } else { + /* SIU interrupt */ +#if 0 + printf ("Free CPM interrupt for vector %d ==> %p\n", + vec, cpm_vecs[vec].handler); +#endif + immr->im_siu_conf.sc_simask &= ~(1 << (31 - vec)); + irq_vecs[vec].handler = NULL; + irq_vecs[vec].arg = NULL; + } +} + +/************************************************************************/ + +static void cpm_interrupt_init (void) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + + /* + * Initialize the CPM interrupt controller. + */ + + immr->im_cpic.cpic_cicr = + (CICR_SCD_SCC4 | + CICR_SCC_SCC3 | + CICR_SCB_SCC2 | + CICR_SCA_SCC1) | ((CPM_INTERRUPT / 2) << 13) | CICR_HP_MASK; + + immr->im_cpic.cpic_cimr = 0; + + /* + * Install the error handler. + */ + irq_install_handler (CPMVEC_ERROR, cpm_error_interrupt, NULL); + + immr->im_cpic.cpic_cicr |= CICR_IEN; + + /* + * Install the cpm interrupt handler + */ + irq_install_handler (CPM_INTERRUPT, cpm_interrupt, NULL); +} + +/************************************************************************/ + +/* + * timer_interrupt - gets called when the decrementer overflows, + * with interrupts disabled. + * Trivial implementation - no need to be really accurate. + */ +void timer_interrupt_cpu (struct pt_regs *regs) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + +#if 0 + printf ("*** Timer Interrupt *** "); +#endif + /* Reset Timer Expired and Timers Interrupt Status */ + immr->im_clkrstk.cark_plprcrk = KAPWR_KEY; + __asm__ ("nop"); + /* + Clear TEXPS (and TMIST on older chips). SPLSS (on older + chips) is cleared too. + + Bitwise OR is a read-modify-write operation so ALL bits + which are cleared by writing `1' would be cleared by + operations like + + immr->im_clkrst.car_plprcr |= PLPRCR_TEXPS; + + The same can be achieved by simple writing of the PLPRCR + to itself. If a bit value should be preserved, read the + register, ZERO the bit and write, not OR, the result back. + */ + immr->im_clkrst.car_plprcr = immr->im_clkrst.car_plprcr; +} + +/************************************************************************/ diff --git a/arch/ppc/cpu/mpc8xx/kgdb.S b/arch/ppc/cpu/mpc8xx/kgdb.S new file mode 100644 index 0000000..2cc8fe6 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/kgdb.S @@ -0,0 +1,74 @@ +/* + * Copyright (C) 2000 Murray Jensen <Murray.Jensen@cmst.csiro.au> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <command.h> +#include <mpc8xx.h> +#include <version.h> + +#define CONFIG_8xx 1 /* needed for Linux kernel header files */ +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#if defined(CONFIG_CMD_KGDB) + + /* + * cache flushing routines for kgdb + */ + + .globl kgdb_flush_cache_all +kgdb_flush_cache_all: + lis r3, IDC_INVALL@h + mtspr DC_CST, r3 + sync + lis r3, IDC_INVALL@h + mtspr IC_CST, r3 + SYNC + blr + + .globl kgdb_flush_cache_range +kgdb_flush_cache_range: + li r5,CONFIG_SYS_CACHELINE_SIZE-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,CONFIG_SYS_CACHELINE_SHIFT + beqlr + mtctr r4 + mr r6,r3 +1: dcbst 0,r3 + addi r3,r3,CONFIG_SYS_CACHELINE_SIZE + bdnz 1b + sync /* wait for dcbst's to get to ram */ + mtctr r4 +2: icbi 0,r6 + addi r6,r6,CONFIG_SYS_CACHELINE_SIZE + bdnz 2b + SYNC + blr + +#endif diff --git a/arch/ppc/cpu/mpc8xx/lcd.c b/arch/ppc/cpu/mpc8xx/lcd.c new file mode 100644 index 0000000..4b88b21 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/lcd.c @@ -0,0 +1,621 @@ +/* + * (C) Copyright 2001-2002 + * Wolfgang Denk, DENX Software Engineering -- wd@denx.de + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/************************************************************************/ +/* ** HEADER FILES */ +/************************************************************************/ + +/* #define DEBUG */ + +#include <config.h> +#include <common.h> +#include <command.h> +#include <watchdog.h> +#include <version.h> +#include <stdarg.h> +#include <lcdvideo.h> +#include <linux/types.h> +#include <stdio_dev.h> +#if defined(CONFIG_POST) +#include <post.h> +#endif +#include <lcd.h> + +#ifdef CONFIG_LCD + +/************************************************************************/ +/* ** CONFIG STUFF -- should be moved to board config file */ +/************************************************************************/ +#ifndef CONFIG_LCD_INFO +#define CONFIG_LCD_INFO /* Display Logo, (C) and system info */ +#endif + +#if defined(CONFIG_V37) || defined(CONFIG_EDT32F10) +#undef CONFIG_LCD_LOGO +#undef CONFIG_LCD_INFO +#endif + +/*----------------------------------------------------------------------*/ +#ifdef CONFIG_KYOCERA_KCS057QV1AJ +/* + * Kyocera KCS057QV1AJ-G23. Passive, color, single scan. + */ +#define LCD_BPP LCD_COLOR4 + +vidinfo_t panel_info = { + 640, 480, 132, 99, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, + LCD_BPP, 1, 0, 1, 0, 5, 0, 0, 0 + /* wbl, vpw, lcdac, wbf */ +}; +#endif /* CONFIG_KYOCERA_KCS057QV1AJ */ +/*----------------------------------------------------------------------*/ + +/*----------------------------------------------------------------------*/ +#ifdef CONFIG_HITACHI_SP19X001_Z1A +/* + * Hitachi SP19X001-. Active, color, single scan. + */ +vidinfo_t panel_info = { + 640, 480, 154, 116, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, + LCD_COLOR8, 1, 0, 1, 0, 0, 0, 0, 0 + /* wbl, vpw, lcdac, wbf */ +}; +#endif /* CONFIG_HITACHI_SP19X001_Z1A */ +/*----------------------------------------------------------------------*/ + +/*----------------------------------------------------------------------*/ +#ifdef CONFIG_NEC_NL6448AC33 +/* + * NEC NL6448AC33-18. Active, color, single scan. + */ +vidinfo_t panel_info = { + 640, 480, 132, 99, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_LOW, CONFIG_SYS_LOW, CONFIG_SYS_HIGH, + 3, 0, 0, 1, 1, 144, 2, 0, 33 + /* wbl, vpw, lcdac, wbf */ +}; +#endif /* CONFIG_NEC_NL6448AC33 */ +/*----------------------------------------------------------------------*/ + +#ifdef CONFIG_NEC_NL6448BC20 +/* + * NEC NL6448BC20-08. 6.5", 640x480. Active, color, single scan. + */ +vidinfo_t panel_info = { + 640, 480, 132, 99, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_LOW, CONFIG_SYS_LOW, CONFIG_SYS_HIGH, + 3, 0, 0, 1, 1, 144, 2, 0, 33 + /* wbl, vpw, lcdac, wbf */ +}; +#endif /* CONFIG_NEC_NL6448BC20 */ +/*----------------------------------------------------------------------*/ + +#ifdef CONFIG_NEC_NL6448BC33_54 +/* + * NEC NL6448BC33-54. 10.4", 640x480. Active, color, single scan. + */ +vidinfo_t panel_info = { + 640, 480, 212, 158, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_LOW, CONFIG_SYS_LOW, CONFIG_SYS_HIGH, + 3, 0, 0, 1, 1, 144, 2, 0, 33 + /* wbl, vpw, lcdac, wbf */ +}; +#endif /* CONFIG_NEC_NL6448BC33_54 */ +/*----------------------------------------------------------------------*/ + +#ifdef CONFIG_SHARP_LQ104V7DS01 +/* + * SHARP LQ104V7DS01. 6.5", 640x480. Active, color, single scan. + */ +vidinfo_t panel_info = { + 640, 480, 132, 99, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_LOW, CONFIG_SYS_LOW, CONFIG_SYS_LOW, + 3, 0, 0, 1, 1, 25, 1, 0, 33 + /* wbl, vpw, lcdac, wbf */ +}; +#endif /* CONFIG_SHARP_LQ104V7DS01 */ +/*----------------------------------------------------------------------*/ + +#ifdef CONFIG_SHARP_16x9 +/* + * Sharp 320x240. Active, color, single scan. It isn't 16x9, and I am + * not sure what it is....... + */ +vidinfo_t panel_info = { + 320, 240, 0, 0, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, + 3, 0, 0, 1, 1, 15, 4, 0, 3 +}; +#endif /* CONFIG_SHARP_16x9 */ +/*----------------------------------------------------------------------*/ + +#ifdef CONFIG_SHARP_LQ057Q3DC02 +/* + * Sharp LQ057Q3DC02 display. Active, color, single scan. + */ +#undef LCD_DF +#define LCD_DF 12 + +vidinfo_t panel_info = { + 320, 240, 0, 0, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_LOW, CONFIG_SYS_LOW, CONFIG_SYS_HIGH, + 3, 0, 0, 1, 1, 15, 4, 0, 3 + /* wbl, vpw, lcdac, wbf */ +}; +#define CONFIG_LCD_INFO_BELOW_LOGO +#endif /* CONFIG_SHARP_LQ057Q3DC02 */ +/*----------------------------------------------------------------------*/ + +#ifdef CONFIG_SHARP_LQ64D341 +/* + * Sharp LQ64D341 display, 640x480. Active, color, single scan. + */ +vidinfo_t panel_info = { + 640, 480, 0, 0, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_LOW, CONFIG_SYS_LOW, CONFIG_SYS_HIGH, + 3, 0, 0, 1, 1, 128, 16, 0, 32 + /* wbl, vpw, lcdac, wbf */ +}; +#endif /* CONFIG_SHARP_LQ64D341 */ + +#ifdef CONFIG_SHARP_LQ065T9DR51U +/* + * Sharp LQ065T9DR51U display, 400x240. Active, color, single scan. + */ +vidinfo_t panel_info = { + 400, 240, 143, 79, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, + 3, 0, 0, 1, 1, 248, 4, 0, 35 + /* wbl, vpw, lcdac, wbf */ +}; +#define CONFIG_LCD_INFO_BELOW_LOGO +#endif /* CONFIG_SHARP_LQ065T9DR51U */ + +#ifdef CONFIG_SHARP_LQ084V1DG21 +/* + * Sharp LQ084V1DG21 display, 640x480. Active, color, single scan. + */ +vidinfo_t panel_info = { + 640, 480, 171, 129, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_LOW, CONFIG_SYS_LOW, CONFIG_SYS_LOW, + 3, 0, 0, 1, 1, 160, 3, 0, 48 + /* wbl, vpw, lcdac, wbf */ +}; +#endif /* CONFIG_SHARP_LQ084V1DG21 */ + +/*----------------------------------------------------------------------*/ + +#ifdef CONFIG_HLD1045 +/* + * HLD1045 display, 640x480. Active, color, single scan. + */ +vidinfo_t panel_info = { + 640, 480, 0, 0, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_LOW, CONFIG_SYS_LOW, CONFIG_SYS_HIGH, + 3, 0, 0, 1, 1, 160, 3, 0, 48 + /* wbl, vpw, lcdac, wbf */ +}; +#endif /* CONFIG_HLD1045 */ +/*----------------------------------------------------------------------*/ + +#ifdef CONFIG_PRIMEVIEW_V16C6448AC +/* + * Prime View V16C6448AC + */ +vidinfo_t panel_info = { + 640, 480, 130, 98, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_LOW, CONFIG_SYS_LOW, CONFIG_SYS_HIGH, + 3, 0, 0, 1, 1, 144, 2, 0, 35 + /* wbl, vpw, lcdac, wbf */ +}; +#endif /* CONFIG_PRIMEVIEW_V16C6448AC */ + +/*----------------------------------------------------------------------*/ + +#ifdef CONFIG_OPTREX_BW +/* + * Optrex CBL50840-2 NF-FW 99 22 M5 + * or + * Hitachi LMG6912RPFC-00T + * or + * Hitachi SP14Q002 + * + * 320x240. Black & white. + */ +#define OPTREX_BPP 0 /* 0 - monochrome, 1 bpp */ + /* 1 - 4 grey levels, 2 bpp */ + /* 2 - 16 grey levels, 4 bpp */ +vidinfo_t panel_info = { + 320, 240, 0, 0, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_LOW, + OPTREX_BPP, 0, 0, 0, 0, 0, 0, 0, 0, 4 +}; +#endif /* CONFIG_OPTREX_BW */ + +/*-----------------------------------------------------------------*/ +#ifdef CONFIG_EDT32F10 +/* + * Emerging Display Technologies 320x240. Passive, monochrome, single scan. + */ +#define LCD_BPP LCD_MONOCHROME +#define LCD_DF 10 + +vidinfo_t panel_info = { + 320, 240, 0, 0, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_HIGH, CONFIG_SYS_LOW, + LCD_BPP, 0, 0, 0, 0, 33, 0, 0, 0 +}; +#endif +/*----------------------------------------------------------------------*/ + + +int lcd_line_length; + +int lcd_color_fg; +int lcd_color_bg; + +/* + * Frame buffer memory information + */ +void *lcd_base; /* Start of framebuffer memory */ +void *lcd_console_address; /* Start of console buffer */ + +short console_col; +short console_row; + +/************************************************************************/ + +void lcd_ctrl_init (void *lcdbase); +void lcd_enable (void); +#if LCD_BPP == LCD_COLOR8 +void lcd_setcolreg (ushort regno, + ushort red, ushort green, ushort blue); +#endif +#if LCD_BPP == LCD_MONOCHROME +void lcd_initcolregs (void); +#endif + +#if defined(CONFIG_RBC823) +void lcd_disable (void); +#endif + +/************************************************************************/ + +/************************************************************************/ +/* ----------------- chipset specific functions ----------------------- */ +/************************************************************************/ + +/* + * Calculate fb size for VIDEOLFB_ATAG. + */ +ulong calc_fbsize (void) +{ + ulong size; + int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8; + + size = line_length * panel_info.vl_row; + + return size; +} + +void lcd_ctrl_init (void *lcdbase) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + volatile lcd823_t *lcdp = &immr->im_lcd; + + uint lccrtmp; + uint lchcr_hpc_tmp; + + /* Initialize the LCD control register according to the LCD + * parameters defined. We do everything here but enable + * the controller. + */ + +#ifdef CONFIG_RPXLITE + /* This is special for RPXlite_DW Software Development Platform **[Sam]** */ + panel_info.vl_dp = CONFIG_SYS_LOW; +#endif + + lccrtmp = LCDBIT (LCCR_BNUM_BIT, + (((panel_info.vl_row * panel_info.vl_col) * (1 << LCD_BPP)) / 128)); + + lccrtmp |= LCDBIT (LCCR_CLKP_BIT, panel_info.vl_clkp) | + LCDBIT (LCCR_OEP_BIT, panel_info.vl_oep) | + LCDBIT (LCCR_HSP_BIT, panel_info.vl_hsp) | + LCDBIT (LCCR_VSP_BIT, panel_info.vl_vsp) | + LCDBIT (LCCR_DP_BIT, panel_info.vl_dp) | + LCDBIT (LCCR_BPIX_BIT, panel_info.vl_bpix) | + LCDBIT (LCCR_LBW_BIT, panel_info.vl_lbw) | + LCDBIT (LCCR_SPLT_BIT, panel_info.vl_splt) | + LCDBIT (LCCR_CLOR_BIT, panel_info.vl_clor) | + LCDBIT (LCCR_TFT_BIT, panel_info.vl_tft); + +#if 0 + lccrtmp |= ((SIU_LEVEL5 / 2) << 12); + lccrtmp |= LCCR_EIEN; +#endif + + lcdp->lcd_lccr = lccrtmp; + lcdp->lcd_lcsr = 0xFF; /* Clear pending interrupts */ + + /* Initialize LCD controller bus priorities. + */ +#ifdef CONFIG_RBC823 + immr->im_siu_conf.sc_sdcr = (immr->im_siu_conf.sc_sdcr & ~0x0f) | 1; /* RAID = 01, LAID = 00 */ +#else + immr->im_siu_conf.sc_sdcr &= ~0x0f; /* RAID = LAID = 0 */ + + /* set SHFT/CLOCK division factor 4 + * This needs to be set based upon display type and processor + * speed. The TFT displays run about 20 to 30 MHz. + * I was running 64 MHz processor speed. + * The value for this divider must be chosen so the result is + * an integer of the processor speed (i.e., divide by 3 with + * 64 MHz would be bad). + */ + immr->im_clkrst.car_sccr &= ~0x1F; + immr->im_clkrst.car_sccr |= LCD_DF; /* was 8 */ + +#endif /* CONFIG_RBC823 */ + +#if defined(CONFIG_RBC823) + /* Enable LCD on port D. + */ + immr->im_ioport.iop_pddat &= 0x0300; + immr->im_ioport.iop_pdpar |= 0x1CFF; + immr->im_ioport.iop_pddir |= 0x1CFF; + + /* Configure LCD_ON, VEE_ON, CCFL_ON on port B. + */ + immr->im_cpm.cp_pbdat &= ~0x00005001; + immr->im_cpm.cp_pbpar &= ~0x00005001; + immr->im_cpm.cp_pbdir |= 0x00005001; +#elif !defined(CONFIG_EDT32F10) + /* Enable LCD on port D. + */ + immr->im_ioport.iop_pdpar |= 0x1FFF; + immr->im_ioport.iop_pddir |= 0x1FFF; + + /* Enable LCD_A/B/C on port B. + */ + immr->im_cpm.cp_pbpar |= 0x00005001; + immr->im_cpm.cp_pbdir |= 0x00005001; +#else + /* Enable LCD on port D. + */ + immr->im_ioport.iop_pdpar |= 0x1DFF; + immr->im_ioport.iop_pdpar &= ~0x0200; + immr->im_ioport.iop_pddir |= 0x1FFF; + immr->im_ioport.iop_pddat |= 0x0200; +#endif + + /* Load the physical address of the linear frame buffer + * into the LCD controller. + * BIG NOTE: This has to be modified to load A and B depending + * upon the split mode of the LCD. + */ + lcdp->lcd_lcfaa = (ulong)lcd_base; + lcdp->lcd_lcfba = (ulong)lcd_base; + + /* MORE HACKS...This must be updated according to 823 manual + * for different panels. + * Udi Finkelstein - done - see below: + * Note: You better not try unsupported combinations such as + * 4-bit wide passive dual scan LCD at 4/8 Bit color. + */ + lchcr_hpc_tmp = + (panel_info.vl_col * + (panel_info.vl_tft ? 8 : + (((2 - panel_info.vl_lbw) << /* 4 bit=2, 8-bit = 1 */ + /* use << to mult by: single scan = 1, dual scan = 2 */ + panel_info.vl_splt) * + (panel_info.vl_bpix | 1)))) >> 3; /* 2/4 BPP = 1, 8/16 BPP = 3 */ + + lcdp->lcd_lchcr = LCHCR_BO | + LCDBIT (LCHCR_AT_BIT, 4) | + LCDBIT (LCHCR_HPC_BIT, lchcr_hpc_tmp) | + panel_info.vl_wbl; + + lcdp->lcd_lcvcr = LCDBIT (LCVCR_VPW_BIT, panel_info.vl_vpw) | + LCDBIT (LCVCR_LCD_AC_BIT, panel_info.vl_lcdac) | + LCDBIT (LCVCR_VPC_BIT, panel_info.vl_row) | + panel_info.vl_wbf; + +} + +/*----------------------------------------------------------------------*/ + +#ifdef NOT_USED_SO_FAR +static void +lcd_getcolreg (ushort regno, ushort *red, ushort *green, ushort *blue) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + volatile cpm8xx_t *cp = &(immr->im_cpm); + unsigned short colreg, *cmap_ptr; + + cmap_ptr = (unsigned short *)&cp->lcd_cmap[regno * 2]; + + colreg = *cmap_ptr; +#ifdef CONFIG_SYS_INVERT_COLORS + colreg ^= 0x0FFF; +#endif + + *red = (colreg >> 8) & 0x0F; + *green = (colreg >> 4) & 0x0F; + *blue = colreg & 0x0F; +} +#endif /* NOT_USED_SO_FAR */ + +/*----------------------------------------------------------------------*/ + +#if LCD_BPP == LCD_COLOR8 +void +lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + volatile cpm8xx_t *cp = &(immr->im_cpm); + unsigned short colreg, *cmap_ptr; + + cmap_ptr = (unsigned short *)&cp->lcd_cmap[regno * 2]; + + colreg = ((red & 0x0F) << 8) | + ((green & 0x0F) << 4) | + (blue & 0x0F) ; +#ifdef CONFIG_SYS_INVERT_COLORS + colreg ^= 0x0FFF; +#endif + *cmap_ptr = colreg; + + debug ("setcolreg: reg %2d @ %p: R=%02X G=%02X B=%02X => %02X%02X\n", + regno, &(cp->lcd_cmap[regno * 2]), + red, green, blue, + cp->lcd_cmap[ regno * 2 ], cp->lcd_cmap[(regno * 2) + 1]); +} +#endif /* LCD_COLOR8 */ + +/*----------------------------------------------------------------------*/ + +#if LCD_BPP == LCD_MONOCHROME +static +void lcd_initcolregs (void) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + volatile cpm8xx_t *cp = &(immr->im_cpm); + ushort regno; + + for (regno = 0; regno < 16; regno++) { + cp->lcd_cmap[regno * 2] = 0; + cp->lcd_cmap[(regno * 2) + 1] = regno & 0x0f; + } +} +#endif + +/*----------------------------------------------------------------------*/ + +void lcd_enable (void) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + volatile lcd823_t *lcdp = &immr->im_lcd; + + /* Enable the LCD panel */ +#ifndef CONFIG_RBC823 + immr->im_siu_conf.sc_sdcr |= (1 << (31 - 25)); /* LAM = 1 */ +#endif + lcdp->lcd_lccr |= LCCR_PON; + +#ifdef CONFIG_V37 + /* Turn on display backlight */ + immr->im_cpm.cp_pbpar |= 0x00008000; + immr->im_cpm.cp_pbdir |= 0x00008000; +#elif defined(CONFIG_RBC823) + /* Turn on display backlight */ + immr->im_cpm.cp_pbdat |= 0x00004000; +#endif + +#if defined(CONFIG_LWMON) + { uchar c = pic_read (0x60); +#if defined(CONFIG_LCD) && defined(CONFIG_LWMON) && (CONFIG_POST & CONFIG_SYS_POST_SYSMON) + /* Enable LCD later in sysmon test, only if temperature is OK */ +#else + c |= 0x07; /* Power on CCFL, Enable CCFL, Chip Enable LCD */ +#endif + pic_write (0x60, c); + } +#endif /* CONFIG_LWMON */ + +#if defined(CONFIG_R360MPI) + { + extern void r360_i2c_lcd_write (uchar data0, uchar data1); + unsigned long bgi, ctr; + char *p; + + if ((p = getenv("lcdbgi")) != NULL) { + bgi = simple_strtoul (p, 0, 10) & 0xFFF; + } else { + bgi = 0xFFF; + } + + if ((p = getenv("lcdctr")) != NULL) { + ctr = simple_strtoul (p, 0, 10) & 0xFFF; + } else { + ctr=0x7FF; + } + + r360_i2c_lcd_write(0x10, 0x01); + r360_i2c_lcd_write(0x20, 0x01); + r360_i2c_lcd_write(0x30 | ((bgi>>8) & 0xF), bgi & 0xFF); + r360_i2c_lcd_write(0x40 | ((ctr>>8) & 0xF), ctr & 0xFF); + } +#endif /* CONFIG_R360MPI */ +#ifdef CONFIG_RBC823 + udelay(200000); /* wait 200ms */ + /* Turn VEE_ON first */ + immr->im_cpm.cp_pbdat |= 0x00000001; + udelay(200000); /* wait 200ms */ + /* Now turn on LCD_ON */ + immr->im_cpm.cp_pbdat |= 0x00001000; +#endif +#ifdef CONFIG_RRVISION + debug ("PC4->Output(1): enable LVDS\n"); + debug ("PC5->Output(0): disable PAL clock\n"); + immr->im_ioport.iop_pddir |= 0x1000; + immr->im_ioport.iop_pcpar &= ~(0x0C00); + immr->im_ioport.iop_pcdir |= 0x0C00 ; + immr->im_ioport.iop_pcdat |= 0x0800 ; + immr->im_ioport.iop_pcdat &= ~(0x0400); + debug ("PDPAR=0x%04X PDDIR=0x%04X PDDAT=0x%04X\n", + immr->im_ioport.iop_pdpar, + immr->im_ioport.iop_pddir, + immr->im_ioport.iop_pddat); + debug ("PCPAR=0x%04X PCDIR=0x%04X PCDAT=0x%04X\n", + immr->im_ioport.iop_pcpar, + immr->im_ioport.iop_pcdir, + immr->im_ioport.iop_pcdat); +#endif +} + +/*----------------------------------------------------------------------*/ + +#if defined (CONFIG_RBC823) +void lcd_disable (void) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + volatile lcd823_t *lcdp = &immr->im_lcd; + +#if defined(CONFIG_LWMON) + { uchar c = pic_read (0x60); + c &= ~0x07; /* Power off CCFL, Disable CCFL, Chip Disable LCD */ + pic_write (0x60, c); + } +#elif defined(CONFIG_R360MPI) + { + extern void r360_i2c_lcd_write (uchar data0, uchar data1); + + r360_i2c_lcd_write(0x10, 0x00); + r360_i2c_lcd_write(0x20, 0x00); + r360_i2c_lcd_write(0x30, 0x00); + r360_i2c_lcd_write(0x40, 0x00); + } +#endif /* CONFIG_LWMON */ + /* Disable the LCD panel */ + lcdp->lcd_lccr &= ~LCCR_PON; +#ifdef CONFIG_RBC823 + /* Turn off display backlight, VEE and LCD_ON */ + immr->im_cpm.cp_pbdat &= ~0x00005001; +#else + immr->im_siu_conf.sc_sdcr &= ~(1 << (31 - 25)); /* LAM = 0 */ +#endif /* CONFIG_RBC823 */ +} +#endif /* NOT_USED_SO_FAR || CONFIG_RBC823 */ + + +/************************************************************************/ + +#endif /* CONFIG_LCD */ diff --git a/arch/ppc/cpu/mpc8xx/plprcr_write.S b/arch/ppc/cpu/mpc8xx/plprcr_write.S new file mode 100644 index 0000000..e325671 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/plprcr_write.S @@ -0,0 +1,135 @@ +/* + * (C) Copyright 2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <mpc8xx.h> +#include <ppc_asm.tmpl> +#include <asm/cache.h> + +#define CACHE_CMD_ENABLE 0x02000000 +#define CACHE_CMD_DISABLE 0x04000000 +#define CACHE_CMD_LOAD_LOCK 0x06000000 +#define CACHE_CMD_UNLOCK_LINE 0x08000000 +#define CACHE_CMD_UNLOCK_ALL 0x0A000000 +#define CACHE_CMD_INVALIDATE 0x0C000000 +#define SPEED_PLPRCR_WAIT_5CYC 150 +#define _CACHE_ALIGN_SIZE 16 + + + .text + .align 2 + .globl plprcr_write_866 + +/* + * void plprcr_write_866 (long plprcr) + * Write PLPRCR, including workaround for device errata SIU4 and SIU9. + */ + +plprcr_write_866: + mfspr r10, LR /* save the Link Register value */ + + /* turn instruction cache on (no MMU required for instructions) + */ + lis r4, CACHE_CMD_ENABLE@h + ori r4, r4, CACHE_CMD_ENABLE@l + mtspr IC_CST, r4 + isync + + /* clear IC_CST error bits + */ + mfspr r4, IC_CST + + bl plprcr_here + +plprcr_here: + mflr r5 + + /* calculate relocation offset + */ + lis r4, plprcr_here@h + ori r4, r4, plprcr_here@l + sub r5, r5, r4 + + /* calculate first address of this function + */ + lis r6, plprcr_write_866@h + ori r6, r6, plprcr_write_866@l + add r6, r6, r5 + + /* calculate end address of this function + */ + lis r7, plprcr_end@h + ori r7, r7, plprcr_end@l + add r7, r7, r5 + + /* load and lock code addresses + */ + mr r5, r6 + +plprcr_loop: + mtspr IC_ADR, r5 + addi r5, r5, _CACHE_ALIGN_SIZE /* increment by one line */ + + lis r4, CACHE_CMD_LOAD_LOCK@h + ori r4, r4, CACHE_CMD_LOAD_LOCK@l + mtspr IC_CST, r4 + isync + + cmpw r5, r7 + blt plprcr_loop + + /* IC_CST error bits not evaluated + */ + + /* switch PLPRCR + */ + mfspr r4, IMMR /* read IMMR */ + rlwinm r4, r4, 0, 0, 15 /* only high 16 bits count */ + + /* write sequence according to MPC866 Errata + */ + stw r3, PLPRCR(r4) + isync + + lis r3, SPEED_PLPRCR_WAIT_5CYC@h + ori r3, r3, SPEED_PLPRCR_WAIT_5CYC@l + +plprcr_wait: + cmpwi r3, 0 + beq plprcr_wait_end + nop + subi r3, r3, 1 + b plprcr_wait + +plprcr_wait_end: + + /* unlock instruction cache but leave it enabled + */ + lis r4, CACHE_CMD_UNLOCK_ALL@h + ori r4, r4, CACHE_CMD_UNLOCK_ALL@l + mtspr IC_CST, r4 + isync + + mtspr LR, r10 /* restore original Link Register value */ + blr + +plprcr_end: diff --git a/arch/ppc/cpu/mpc8xx/scc.c b/arch/ppc/cpu/mpc8xx/scc.c new file mode 100644 index 0000000..effb967 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/scc.c @@ -0,0 +1,572 @@ +/* + * File: scc.c + * Description: + * Basic ET HW initialization and packet RX/TX routines + * + * NOTE <<<IMPORTANT: PLEASE READ>>>: + * Do not cache Rx/Tx buffers! + */ + +/* + * MPC823 <-> MC68160 Connections: + * + * Setup MPC823 to work with MC68160 Enhanced Ethernet + * Serial Tranceiver as follows: + * + * MPC823 Signal MC68160 Comments + * ------ ------ ------- -------- + * PA-12 ETHTX --------> TX Eth. Port Transmit Data + * PB-18 E_TENA --------> TENA Eth. Transmit Port Enable + * PA-5 ETHTCK <-------- TCLK Eth. Port Transmit Clock + * PA-13 ETHRX <-------- RX Eth. Port Receive Data + * PC-8 E_RENA <-------- RENA Eth. Receive Enable + * PA-6 ETHRCK <-------- RCLK Eth. Port Receive Clock + * PC-9 E_CLSN <-------- CLSN Eth. Port Collision Indication + * + * FADS Board Signal MC68160 Comments + * ----------------- ------- -------- + * (BCSR1) ETHEN* --------> CS2 Eth. Port Enable + * (BSCR4) TPSQEL* --------> TPSQEL Twisted Pair Signal Quality Error Test Enable + * (BCSR4) TPFLDL* --------> TPFLDL Twisted Pair Full-Duplex + * (BCSR4) ETHLOOP --------> LOOP Eth. Port Diagnostic Loop-Back + * + */ + +#include <common.h> +#include <malloc.h> +#include <commproc.h> +#include <net.h> +#include <command.h> + +#if defined(CONFIG_CMD_NET) && defined(SCC_ENET) + +/* Ethernet Transmit and Receive Buffers */ +#define DBUF_LENGTH 1520 + +#define TX_BUF_CNT 2 + +#define TOUT_LOOP 10000 /* 10 ms to have a packet sent */ + +static char txbuf[DBUF_LENGTH]; + +static uint rxIdx; /* index of the current RX buffer */ +static uint txIdx; /* index of the current TX buffer */ + +/* + * SCC Ethernet Tx and Rx buffer descriptors allocated at the + * immr->udata_bd address on Dual-Port RAM + * Provide for Double Buffering + */ + +typedef volatile struct CommonBufferDescriptor { + cbd_t rxbd[PKTBUFSRX]; /* Rx BD */ + cbd_t txbd[TX_BUF_CNT]; /* Tx BD */ +} RTXBD; + +static RTXBD *rtx; + +static int scc_send(struct eth_device* dev, volatile void *packet, int length); +static int scc_recv(struct eth_device* dev); +static int scc_init (struct eth_device* dev, bd_t * bd); +static void scc_halt(struct eth_device* dev); + +int scc_initialize(bd_t *bis) +{ + struct eth_device* dev; + + dev = (struct eth_device*) malloc(sizeof *dev); + memset(dev, 0, sizeof *dev); + + sprintf(dev->name, "SCC ETHERNET"); + dev->iobase = 0; + dev->priv = 0; + dev->init = scc_init; + dev->halt = scc_halt; + dev->send = scc_send; + dev->recv = scc_recv; + + eth_register(dev); + + return 1; +} + +static int scc_send(struct eth_device* dev, volatile void *packet, int length) +{ + int i, j=0; +#if 0 + volatile char *in, *out; +#endif + + /* section 16.9.23.3 + * Wait for ready + */ +#if 0 + while (rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY); + out = (char *)(rtx->txbd[txIdx].cbd_bufaddr); + in = packet; + for(i = 0; i < length; i++) { + *out++ = *in++; + } + rtx->txbd[txIdx].cbd_datlen = length; + rtx->txbd[txIdx].cbd_sc |= (BD_ENET_TX_READY | BD_ENET_TX_LAST); + while (rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY) j++; + +#ifdef ET_DEBUG + printf("cycles: %d status: %x\n", j, rtx->txbd[txIdx].cbd_sc); +#endif + i = (rtx->txbd[txIdx++].cbd_sc & BD_ENET_TX_STATS) /* return only status bits */; + + /* wrap around buffer index when necessary */ + if (txIdx >= TX_BUF_CNT) txIdx = 0; +#endif + + while ((rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY) && (j<TOUT_LOOP)) { + udelay (1); /* will also trigger Wd if needed */ + j++; + } + if (j>=TOUT_LOOP) printf("TX not ready\n"); + rtx->txbd[txIdx].cbd_bufaddr = (uint)packet; + rtx->txbd[txIdx].cbd_datlen = length; + rtx->txbd[txIdx].cbd_sc |= (BD_ENET_TX_READY | BD_ENET_TX_LAST |BD_ENET_TX_WRAP); + while ((rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY) && (j<TOUT_LOOP)) { + udelay (1); /* will also trigger Wd if needed */ + j++; + } + if (j>=TOUT_LOOP) printf("TX timeout\n"); +#ifdef ET_DEBUG + printf("cycles: %d status: %x\n", j, rtx->txbd[txIdx].cbd_sc); +#endif + i = (rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_STATS) /* return only status bits */; + return i; +} + +static int scc_recv (struct eth_device *dev) +{ + int length; + + for (;;) { + /* section 16.9.23.2 */ + if (rtx->rxbd[rxIdx].cbd_sc & BD_ENET_RX_EMPTY) { + length = -1; + break; /* nothing received - leave for() loop */ + } + + length = rtx->rxbd[rxIdx].cbd_datlen; + + if (rtx->rxbd[rxIdx].cbd_sc & 0x003f) { +#ifdef ET_DEBUG + printf ("err: %x\n", rtx->rxbd[rxIdx].cbd_sc); +#endif + } else { + /* Pass the packet up to the protocol layers. */ + NetReceive (NetRxPackets[rxIdx], length - 4); + } + + + /* Give the buffer back to the SCC. */ + rtx->rxbd[rxIdx].cbd_datlen = 0; + + /* wrap around buffer index when necessary */ + if ((rxIdx + 1) >= PKTBUFSRX) { + rtx->rxbd[PKTBUFSRX - 1].cbd_sc = + (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY); + rxIdx = 0; + } else { + rtx->rxbd[rxIdx].cbd_sc = BD_ENET_RX_EMPTY; + rxIdx++; + } + } + return length; +} + +/************************************************************** + * + * SCC Ethernet Initialization Routine + * + *************************************************************/ + +static int scc_init (struct eth_device *dev, bd_t * bis) +{ + + int i; + scc_enet_t *pram_ptr; + + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + +#if defined(CONFIG_LWMON) + reset_phy(); +#endif + +#ifdef CONFIG_FADS +#if defined(CONFIG_MPC86xADS) || defined(CONFIG_MPC860T) + /* The MPC86xADS/FADS860T don't use the MODEM_EN or DATA_VOICE signals. */ + *((uint *) BCSR4) &= ~BCSR4_ETHLOOP; + *((uint *) BCSR4) |= BCSR4_TFPLDL | BCSR4_TPSQEL; + *((uint *) BCSR1) &= ~BCSR1_ETHEN; +#else + *((uint *) BCSR4) &= ~(BCSR4_ETHLOOP | BCSR4_MODEM_EN); + *((uint *) BCSR4) |= BCSR4_TFPLDL | BCSR4_TPSQEL | BCSR4_DATA_VOICE; + *((uint *) BCSR1) &= ~BCSR1_ETHEN; +#endif +#endif + + pram_ptr = (scc_enet_t *) & (immr->im_cpm.cp_dparam[PROFF_ENET]); + + rxIdx = 0; + txIdx = 0; + + if (!rtx) { +#ifdef CONFIG_SYS_ALLOC_DPRAM + rtx = (RTXBD *) (immr->im_cpm.cp_dpmem + + dpram_alloc_align (sizeof (RTXBD), 8)); +#else + rtx = (RTXBD *) (immr->im_cpm.cp_dpmem + CPM_SCC_BASE); +#endif + } + +#if (defined(PA_ENET_RXD) && defined(PA_ENET_TXD)) + /* Configure port A pins for Txd and Rxd. + */ + immr->im_ioport.iop_papar |= (PA_ENET_RXD | PA_ENET_TXD); + immr->im_ioport.iop_padir &= ~(PA_ENET_RXD | PA_ENET_TXD); + immr->im_ioport.iop_paodr &= ~PA_ENET_TXD; +#elif (defined(PB_ENET_RXD) && defined(PB_ENET_TXD)) + /* Configure port B pins for Txd and Rxd. + */ + immr->im_cpm.cp_pbpar |= (PB_ENET_RXD | PB_ENET_TXD); + immr->im_cpm.cp_pbdir &= ~(PB_ENET_RXD | PB_ENET_TXD); + immr->im_cpm.cp_pbodr &= ~PB_ENET_TXD; +#else +#error Configuration Error: exactly ONE of PA_ENET_[RT]XD, PB_ENET_[RT]XD must be defined +#endif + +#if defined(PC_ENET_LBK) + /* Configure port C pins to disable External Loopback + */ + immr->im_ioport.iop_pcpar &= ~PC_ENET_LBK; + immr->im_ioport.iop_pcdir |= PC_ENET_LBK; + immr->im_ioport.iop_pcso &= ~PC_ENET_LBK; + immr->im_ioport.iop_pcdat &= ~PC_ENET_LBK; /* Disable Loopback */ +#endif /* PC_ENET_LBK */ + + /* Configure port C pins to enable CLSN and RENA. + */ + immr->im_ioport.iop_pcpar &= ~(PC_ENET_CLSN | PC_ENET_RENA); + immr->im_ioport.iop_pcdir &= ~(PC_ENET_CLSN | PC_ENET_RENA); + immr->im_ioport.iop_pcso |= (PC_ENET_CLSN | PC_ENET_RENA); + + /* Configure port A for TCLK and RCLK. + */ + immr->im_ioport.iop_papar |= (PA_ENET_TCLK | PA_ENET_RCLK); + immr->im_ioport.iop_padir &= ~(PA_ENET_TCLK | PA_ENET_RCLK); + + /* + * Configure Serial Interface clock routing -- see section 16.7.5.3 + * First, clear all SCC bits to zero, then set the ones we want. + */ + + immr->im_cpm.cp_sicr &= ~SICR_ENET_MASK; + immr->im_cpm.cp_sicr |= SICR_ENET_CLKRT; + + + /* + * Initialize SDCR -- see section 16.9.23.7 + * SDMA configuration register + */ + immr->im_siu_conf.sc_sdcr = 0x01; + + + /* + * Setup SCC Ethernet Parameter RAM + */ + + pram_ptr->sen_genscc.scc_rfcr = 0x18; /* Normal Operation and Mot byte ordering */ + pram_ptr->sen_genscc.scc_tfcr = 0x18; /* Mot byte ordering, Normal access */ + + pram_ptr->sen_genscc.scc_mrblr = DBUF_LENGTH; /* max. ET package len 1520 */ + + pram_ptr->sen_genscc.scc_rbase = (unsigned int) (&rtx->rxbd[0]); /* Set RXBD tbl start at Dual Port */ + pram_ptr->sen_genscc.scc_tbase = (unsigned int) (&rtx->txbd[0]); /* Set TXBD tbl start at Dual Port */ + + /* + * Setup Receiver Buffer Descriptors (13.14.24.18) + * Settings: + * Empty, Wrap + */ + + for (i = 0; i < PKTBUFSRX; i++) { + rtx->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY; + rtx->rxbd[i].cbd_datlen = 0; /* Reset */ + rtx->rxbd[i].cbd_bufaddr = (uint) NetRxPackets[i]; + } + + rtx->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP; + + /* + * Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19) + * Settings: + * Add PADs to Short FRAMES, Wrap, Last, Tx CRC + */ + + for (i = 0; i < TX_BUF_CNT; i++) { + rtx->txbd[i].cbd_sc = + (BD_ENET_TX_PAD | BD_ENET_TX_LAST | BD_ENET_TX_TC); + rtx->txbd[i].cbd_datlen = 0; /* Reset */ + rtx->txbd[i].cbd_bufaddr = (uint) (&txbuf[0]); + } + + rtx->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP; + + /* + * Enter Command: Initialize Rx Params for SCC + */ + + do { /* Spin until ready to issue command */ + __asm__ ("eieio"); + } while (immr->im_cpm.cp_cpcr & CPM_CR_FLG); + /* Issue command */ + immr->im_cpm.cp_cpcr = + ((CPM_CR_INIT_RX << 8) | (CPM_CR_ENET << 4) | CPM_CR_FLG); + do { /* Spin until command processed */ + __asm__ ("eieio"); + } while (immr->im_cpm.cp_cpcr & CPM_CR_FLG); + + /* + * Ethernet Specific Parameter RAM + * see table 13-16, pg. 660, + * pg. 681 (example with suggested settings) + */ + + pram_ptr->sen_cpres = ~(0x0); /* Preset CRC */ + pram_ptr->sen_cmask = 0xdebb20e3; /* Constant Mask for CRC */ + pram_ptr->sen_crcec = 0x0; /* Error Counter CRC (unused) */ + pram_ptr->sen_alec = 0x0; /* Alignment Error Counter (unused) */ + pram_ptr->sen_disfc = 0x0; /* Discard Frame Counter (unused) */ + pram_ptr->sen_pads = 0x8888; /* Short Frame PAD Characters */ + + pram_ptr->sen_retlim = 15; /* Retry Limit Threshold */ + pram_ptr->sen_maxflr = 1518; /* MAX Frame Length Register */ + pram_ptr->sen_minflr = 64; /* MIN Frame Length Register */ + + pram_ptr->sen_maxd1 = DBUF_LENGTH; /* MAX DMA1 Length Register */ + pram_ptr->sen_maxd2 = DBUF_LENGTH; /* MAX DMA2 Length Register */ + + pram_ptr->sen_gaddr1 = 0x0; /* Group Address Filter 1 (unused) */ + pram_ptr->sen_gaddr2 = 0x0; /* Group Address Filter 2 (unused) */ + pram_ptr->sen_gaddr3 = 0x0; /* Group Address Filter 3 (unused) */ + pram_ptr->sen_gaddr4 = 0x0; /* Group Address Filter 4 (unused) */ + +#define ea eth_get_dev()->enetaddr + pram_ptr->sen_paddrh = (ea[5] << 8) + ea[4]; + pram_ptr->sen_paddrm = (ea[3] << 8) + ea[2]; + pram_ptr->sen_paddrl = (ea[1] << 8) + ea[0]; +#undef ea + + pram_ptr->sen_pper = 0x0; /* Persistence (unused) */ + pram_ptr->sen_iaddr1 = 0x0; /* Individual Address Filter 1 (unused) */ + pram_ptr->sen_iaddr2 = 0x0; /* Individual Address Filter 2 (unused) */ + pram_ptr->sen_iaddr3 = 0x0; /* Individual Address Filter 3 (unused) */ + pram_ptr->sen_iaddr4 = 0x0; /* Individual Address Filter 4 (unused) */ + pram_ptr->sen_taddrh = 0x0; /* Tmp Address (MSB) (unused) */ + pram_ptr->sen_taddrm = 0x0; /* Tmp Address (unused) */ + pram_ptr->sen_taddrl = 0x0; /* Tmp Address (LSB) (unused) */ + + /* + * Enter Command: Initialize Tx Params for SCC + */ + + do { /* Spin until ready to issue command */ + __asm__ ("eieio"); + } while (immr->im_cpm.cp_cpcr & CPM_CR_FLG); + /* Issue command */ + immr->im_cpm.cp_cpcr = + ((CPM_CR_INIT_TX << 8) | (CPM_CR_ENET << 4) | CPM_CR_FLG); + do { /* Spin until command processed */ + __asm__ ("eieio"); + } while (immr->im_cpm.cp_cpcr & CPM_CR_FLG); + + /* + * Mask all Events in SCCM - we use polling mode + */ + immr->im_cpm.cp_scc[SCC_ENET].scc_sccm = 0; + + /* + * Clear Events in SCCE -- Clear bits by writing 1's + */ + + immr->im_cpm.cp_scc[SCC_ENET].scc_scce = ~(0x0); + + + /* + * Initialize GSMR High 32-Bits + * Settings: Normal Mode + */ + + immr->im_cpm.cp_scc[SCC_ENET].scc_gsmrh = 0; + + /* + * Initialize GSMR Low 32-Bits, but do not Enable Transmit/Receive + * Settings: + * TCI = Invert + * TPL = 48 bits + * TPP = Repeating 10's + * MODE = Ethernet + */ + + immr->im_cpm.cp_scc[SCC_ENET].scc_gsmrl = (SCC_GSMRL_TCI | + SCC_GSMRL_TPL_48 | + SCC_GSMRL_TPP_10 | + SCC_GSMRL_MODE_ENET); + + /* + * Initialize the DSR -- see section 13.14.4 (pg. 513) v0.4 + */ + + immr->im_cpm.cp_scc[SCC_ENET].scc_dsr = 0xd555; + + /* + * Initialize the PSMR + * Settings: + * CRC = 32-Bit CCITT + * NIB = Begin searching for SFD 22 bits after RENA + * FDE = Full Duplex Enable + * LPB = Loopback Enable (Needed when FDE is set) + * BRO = Reject broadcast packets + * PROMISCOUS = Catch all packets regardless of dest. MAC adress + */ + immr->im_cpm.cp_scc[SCC_ENET].scc_psmr = SCC_PSMR_ENCRC | + SCC_PSMR_NIB22 | +#if defined(CONFIG_SCC_ENET_FULL_DUPLEX) + SCC_PSMR_FDE | SCC_PSMR_LPB | +#endif +#if defined(CONFIG_SCC_ENET_NO_BROADCAST) + SCC_PSMR_BRO | +#endif +#if defined(CONFIG_SCC_ENET_PROMISCOUS) + SCC_PSMR_PRO | +#endif + 0; + + /* + * Configure Ethernet TENA Signal + */ + +#if (defined(PC_ENET_TENA) && !defined(PB_ENET_TENA)) + immr->im_ioport.iop_pcpar |= PC_ENET_TENA; + immr->im_ioport.iop_pcdir &= ~PC_ENET_TENA; +#elif (defined(PB_ENET_TENA) && !defined(PC_ENET_TENA)) + immr->im_cpm.cp_pbpar |= PB_ENET_TENA; + immr->im_cpm.cp_pbdir |= PB_ENET_TENA; +#else +#error Configuration Error: exactly ONE of PB_ENET_TENA, PC_ENET_TENA must be defined +#endif + +#if defined(CONFIG_ADS) && defined(CONFIG_MPC860) + /* + * Port C is used to control the PHY,MC68160. + */ + immr->im_ioport.iop_pcdir |= + (PC_ENET_ETHLOOP | PC_ENET_TPFLDL | PC_ENET_TPSQEL); + + immr->im_ioport.iop_pcdat |= PC_ENET_TPFLDL; + immr->im_ioport.iop_pcdat &= ~(PC_ENET_ETHLOOP | PC_ENET_TPSQEL); + *((uint *) BCSR1) &= ~BCSR1_ETHEN; +#endif /* MPC860ADS */ + +#if defined(CONFIG_AMX860) + /* + * Port B is used to control the PHY,MC68160. + */ + immr->im_cpm.cp_pbdir |= + (PB_ENET_ETHLOOP | PB_ENET_TPFLDL | PB_ENET_TPSQEL); + + immr->im_cpm.cp_pbdat |= PB_ENET_TPFLDL; + immr->im_cpm.cp_pbdat &= ~(PB_ENET_ETHLOOP | PB_ENET_TPSQEL); + + immr->im_ioport.iop_pddir |= PD_ENET_ETH_EN; + immr->im_ioport.iop_pddat &= ~PD_ENET_ETH_EN; +#endif /* AMX860 */ + +#ifdef CONFIG_RPXCLASSIC + *((uchar *) BCSR0) &= ~BCSR0_ETHLPBK; + *((uchar *) BCSR0) |= (BCSR0_ETHEN | BCSR0_COLTEST | BCSR0_FULLDPLX); +#endif + +#ifdef CONFIG_RPXLITE + *((uchar *) BCSR0) |= BCSR0_ETHEN; +#endif + +#if defined(CONFIG_QS860T) + /* + * PB27=FDE-, set output low for full duplex + * PB26=Link Test Enable, normally high output + */ + immr->im_cpm.cp_pbdir |= 0x00000030; + immr->im_cpm.cp_pbdat |= 0x00000020; + immr->im_cpm.cp_pbdat &= ~0x00000010; +#endif /* QS860T */ + +#ifdef CONFIG_MBX + board_ether_init (); +#endif + +#if defined(CONFIG_NETVIA) +#if defined(PA_ENET_PDN) + immr->im_ioport.iop_papar &= ~PA_ENET_PDN; + immr->im_ioport.iop_padir |= PA_ENET_PDN; + immr->im_ioport.iop_padat |= PA_ENET_PDN; +#elif defined(PB_ENET_PDN) + immr->im_cpm.cp_pbpar &= ~PB_ENET_PDN; + immr->im_cpm.cp_pbdir |= PB_ENET_PDN; + immr->im_cpm.cp_pbdat |= PB_ENET_PDN; +#elif defined(PC_ENET_PDN) + immr->im_ioport.iop_pcpar &= ~PC_ENET_PDN; + immr->im_ioport.iop_pcdir |= PC_ENET_PDN; + immr->im_ioport.iop_pcdat |= PC_ENET_PDN; +#elif defined(PD_ENET_PDN) + immr->im_ioport.iop_pdpar &= ~PD_ENET_PDN; + immr->im_ioport.iop_pddir |= PD_ENET_PDN; + immr->im_ioport.iop_pddat |= PD_ENET_PDN; +#endif +#endif + + /* + * Set the ENT/ENR bits in the GSMR Low -- Enable Transmit/Receive + */ + + immr->im_cpm.cp_scc[SCC_ENET].scc_gsmrl |= + (SCC_GSMRL_ENR | SCC_GSMRL_ENT); + + /* + * Work around transmit problem with first eth packet + */ +#if defined (CONFIG_FADS) + udelay (10000); /* wait 10 ms */ +#elif defined (CONFIG_AMX860) || defined(CONFIG_RPXCLASSIC) + udelay (100000); /* wait 100 ms */ +#endif + + return 1; +} + + +static void scc_halt (struct eth_device *dev) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + + immr->im_cpm.cp_scc[SCC_ENET].scc_gsmrl &= + ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT); + + immr->im_ioport.iop_pcso &= ~(PC_ENET_CLSN | PC_ENET_RENA); +} + +#if 0 +void restart (void) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + + immr->im_cpm.cp_scc[SCC_ENET].scc_gsmrl |= + (SCC_GSMRL_ENR | SCC_GSMRL_ENT); +} +#endif +#endif diff --git a/arch/ppc/cpu/mpc8xx/serial.c b/arch/ppc/cpu/mpc8xx/serial.c new file mode 100644 index 0000000..664db65 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/serial.c @@ -0,0 +1,745 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <commproc.h> +#include <command.h> +#include <serial.h> +#include <watchdog.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if !defined(CONFIG_8xx_CONS_NONE) /* No Console at all */ + +#if defined(CONFIG_8xx_CONS_SMC1) /* Console on SMC1 */ +#define SMC_INDEX 0 +#define PROFF_SMC PROFF_SMC1 +#define CPM_CR_CH_SMC CPM_CR_CH_SMC1 + +#elif defined(CONFIG_8xx_CONS_SMC2) /* Console on SMC2 */ +#define SMC_INDEX 1 +#define PROFF_SMC PROFF_SMC2 +#define CPM_CR_CH_SMC CPM_CR_CH_SMC2 + +#endif /* CONFIG_8xx_CONS_SMCx */ + +#if defined(CONFIG_8xx_CONS_SCC1) /* Console on SCC1 */ +#define SCC_INDEX 0 +#define PROFF_SCC PROFF_SCC1 +#define CPM_CR_CH_SCC CPM_CR_CH_SCC1 + +#elif defined(CONFIG_8xx_CONS_SCC2) /* Console on SCC2 */ +#define SCC_INDEX 1 +#define PROFF_SCC PROFF_SCC2 +#define CPM_CR_CH_SCC CPM_CR_CH_SCC2 + +#elif defined(CONFIG_8xx_CONS_SCC3) /* Console on SCC3 */ +#define SCC_INDEX 2 +#define PROFF_SCC PROFF_SCC3 +#define CPM_CR_CH_SCC CPM_CR_CH_SCC3 + +#elif defined(CONFIG_8xx_CONS_SCC4) /* Console on SCC4 */ +#define SCC_INDEX 3 +#define PROFF_SCC PROFF_SCC4 +#define CPM_CR_CH_SCC CPM_CR_CH_SCC4 + +#endif /* CONFIG_8xx_CONS_SCCx */ + +#if !defined(CONFIG_SYS_SMC_RXBUFLEN) +#define CONFIG_SYS_SMC_RXBUFLEN 1 +#define CONFIG_SYS_MAXIDLE 0 +#else +#if !defined(CONFIG_SYS_MAXIDLE) +#error "you must define CONFIG_SYS_MAXIDLE" +#endif +#endif + +typedef volatile struct serialbuffer { + cbd_t rxbd; /* Rx BD */ + cbd_t txbd; /* Tx BD */ + uint rxindex; /* index for next character to read */ + volatile uchar rxbuf[CONFIG_SYS_SMC_RXBUFLEN];/* rx buffers */ + volatile uchar txbuf; /* tx buffers */ +} serialbuffer_t; + +static void serial_setdivisor(volatile cpm8xx_t *cp) +{ + int divisor=(gd->cpu_clk + 8*gd->baudrate)/16/gd->baudrate; + + if(divisor/16>0x1000) { + /* bad divisor, assume 50MHz clock and 9600 baud */ + divisor=(50*1000*1000 + 8*9600)/16/9600; + } + +#ifdef CONFIG_SYS_BRGCLK_PRESCALE + divisor /= CONFIG_SYS_BRGCLK_PRESCALE; +#endif + + if(divisor<=0x1000) { + cp->cp_brgc1=((divisor-1)<<1) | CPM_BRG_EN; + } else { + cp->cp_brgc1=((divisor/16-1)<<1) | CPM_BRG_EN | CPM_BRG_DIV16; + } +} + +#if (defined (CONFIG_8xx_CONS_SMC1) || defined (CONFIG_8xx_CONS_SMC2)) + +/* + * Minimal serial functions needed to use one of the SMC ports + * as serial console interface. + */ + +static void smc_setbrg (void) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile cpm8xx_t *cp = &(im->im_cpm); + + /* Set up the baud rate generator. + * See 8xx_io/commproc.c for details. + * + * Wire BRG1 to SMCx + */ + + cp->cp_simode = 0x00000000; + + serial_setdivisor(cp); +} + +static int smc_init (void) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile smc_t *sp; + volatile smc_uart_t *up; + volatile cpm8xx_t *cp = &(im->im_cpm); +#if (!defined(CONFIG_8xx_CONS_SMC1)) && (defined(CONFIG_MPC823) || defined(CONFIG_MPC850)) + volatile iop8xx_t *ip = (iop8xx_t *)&(im->im_ioport); +#endif + uint dpaddr; + volatile serialbuffer_t *rtx; + + /* initialize pointers to SMC */ + + sp = (smc_t *) &(cp->cp_smc[SMC_INDEX]); + up = (smc_uart_t *) &cp->cp_dparam[PROFF_SMC]; +#ifdef CONFIG_SYS_SMC_UCODE_PATCH + up = (smc_uart_t *) &cp->cp_dpmem[up->smc_rpbase]; +#else + /* Disable relocation */ + up->smc_rpbase = 0; +#endif + + /* Disable transmitter/receiver. */ + sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN); + + /* Enable SDMA. */ + im->im_siu_conf.sc_sdcr = 1; + + /* clear error conditions */ +#ifdef CONFIG_SYS_SDSR + im->im_sdma.sdma_sdsr = CONFIG_SYS_SDSR; +#else + im->im_sdma.sdma_sdsr = 0x83; +#endif + + /* clear SDMA interrupt mask */ +#ifdef CONFIG_SYS_SDMR + im->im_sdma.sdma_sdmr = CONFIG_SYS_SDMR; +#else + im->im_sdma.sdma_sdmr = 0x00; +#endif + +#if defined(CONFIG_8xx_CONS_SMC1) + /* Use Port B for SMC1 instead of other functions. */ + cp->cp_pbpar |= 0x000000c0; + cp->cp_pbdir &= ~0x000000c0; + cp->cp_pbodr &= ~0x000000c0; +#else /* CONFIG_8xx_CONS_SMC2 */ +# if defined(CONFIG_MPC823) || defined(CONFIG_MPC850) + /* Use Port A for SMC2 instead of other functions. */ + ip->iop_papar |= 0x00c0; + ip->iop_padir &= ~0x00c0; + ip->iop_paodr &= ~0x00c0; +# else /* must be a 860 then */ + /* Use Port B for SMC2 instead of other functions. + */ + cp->cp_pbpar |= 0x00000c00; + cp->cp_pbdir &= ~0x00000c00; + cp->cp_pbodr &= ~0x00000c00; +# endif +#endif + +#if defined(CONFIG_FADS) || defined(CONFIG_ADS) + /* Enable RS232 */ +#if defined(CONFIG_8xx_CONS_SMC1) + *((uint *) BCSR1) &= ~BCSR1_RS232EN_1; +#else + *((uint *) BCSR1) &= ~BCSR1_RS232EN_2; +#endif +#endif /* CONFIG_FADS */ + +#if defined(CONFIG_RPXLITE) || defined(CONFIG_RPXCLASSIC) + /* Enable Monitor Port Transceiver */ + *((uchar *) BCSR0) |= BCSR0_ENMONXCVR ; +#endif /* CONFIG_RPXLITE */ + + /* Set the physical address of the host memory buffers in + * the buffer descriptors. + */ + +#ifdef CONFIG_SYS_ALLOC_DPRAM + /* allocate + * size of struct serialbuffer with bd rx/tx, buffer rx/tx and rx index + */ + dpaddr = dpram_alloc_align((sizeof(serialbuffer_t)), 8); +#else + dpaddr = CPM_SERIAL_BASE ; +#endif + + rtx = (serialbuffer_t *)&cp->cp_dpmem[dpaddr]; + /* Allocate space for two buffer descriptors in the DP ram. + * For now, this address seems OK, but it may have to + * change with newer versions of the firmware. + * damm: allocating space after the two buffers for rx/tx data + */ + + rtx->rxbd.cbd_bufaddr = (uint) &rtx->rxbuf; + rtx->rxbd.cbd_sc = 0; + + rtx->txbd.cbd_bufaddr = (uint) &rtx->txbuf; + rtx->txbd.cbd_sc = 0; + + /* Set up the uart parameters in the parameter ram. */ + up->smc_rbase = dpaddr; + up->smc_tbase = dpaddr+sizeof(cbd_t); + up->smc_rfcr = SMC_EB; + up->smc_tfcr = SMC_EB; +#if defined (CONFIG_SYS_SMC_UCODE_PATCH) + up->smc_rbptr = up->smc_rbase; + up->smc_tbptr = up->smc_tbase; + up->smc_rstate = 0; + up->smc_tstate = 0; +#endif + +#if defined(CONFIG_MBX) + board_serial_init(); +#endif /* CONFIG_MBX */ + + /* Set UART mode, 8 bit, no parity, one stop. + * Enable receive and transmit. + */ + sp->smc_smcmr = smcr_mk_clen(9) | SMCMR_SM_UART; + + /* Mask all interrupts and remove anything pending. + */ + sp->smc_smcm = 0; + sp->smc_smce = 0xff; + +#ifdef CONFIG_SYS_SPC1920_SMC1_CLK4 + /* clock source is PLD */ + + /* set freq to 19200 Baud */ + *((volatile uchar *) CONFIG_SYS_SPC1920_PLD_BASE+6) = 0x3; + /* configure clk4 as input */ + im->im_ioport.iop_pdpar |= 0x800; + im->im_ioport.iop_pddir &= ~0x800; + + cp->cp_simode = ((cp->cp_simode & ~0xf000) | 0x7000); +#else + /* Set up the baud rate generator */ + smc_setbrg (); +#endif + + /* Make the first buffer the only buffer. */ + rtx->txbd.cbd_sc |= BD_SC_WRAP; + rtx->rxbd.cbd_sc |= BD_SC_EMPTY | BD_SC_WRAP; + + /* single/multi character receive. */ + up->smc_mrblr = CONFIG_SYS_SMC_RXBUFLEN; + up->smc_maxidl = CONFIG_SYS_MAXIDLE; + rtx->rxindex = 0; + + /* Initialize Tx/Rx parameters. */ + while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + + cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC, CPM_CR_INIT_TRX) | CPM_CR_FLG; + + while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + + /* Enable transmitter/receiver. */ + sp->smc_smcmr |= SMCMR_REN | SMCMR_TEN; + + return (0); +} + +static void +smc_putc(const char c) +{ + volatile smc_uart_t *up; + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile cpm8xx_t *cpmp = &(im->im_cpm); + volatile serialbuffer_t *rtx; + +#ifdef CONFIG_MODEM_SUPPORT + if (gd->be_quiet) + return; +#endif + + if (c == '\n') + smc_putc ('\r'); + + up = (smc_uart_t *)&cpmp->cp_dparam[PROFF_SMC]; +#ifdef CONFIG_SYS_SMC_UCODE_PATCH + up = (smc_uart_t *) &cpmp->cp_dpmem[up->smc_rpbase]; +#endif + + rtx = (serialbuffer_t *)&cpmp->cp_dpmem[up->smc_rbase]; + + /* Wait for last character to go. */ + rtx->txbuf = c; + rtx->txbd.cbd_datlen = 1; + rtx->txbd.cbd_sc |= BD_SC_READY; + __asm__("eieio"); + + while (rtx->txbd.cbd_sc & BD_SC_READY) { + WATCHDOG_RESET (); + __asm__("eieio"); + } +} + +static void +smc_puts (const char *s) +{ + while (*s) { + smc_putc (*s++); + } +} + +static int +smc_getc(void) +{ + volatile smc_uart_t *up; + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile cpm8xx_t *cpmp = &(im->im_cpm); + volatile serialbuffer_t *rtx; + unsigned char c; + + up = (smc_uart_t *)&cpmp->cp_dparam[PROFF_SMC]; +#ifdef CONFIG_SYS_SMC_UCODE_PATCH + up = (smc_uart_t *) &cpmp->cp_dpmem[up->smc_rpbase]; +#endif + rtx = (serialbuffer_t *)&cpmp->cp_dpmem[up->smc_rbase]; + + /* Wait for character to show up. */ + while (rtx->rxbd.cbd_sc & BD_SC_EMPTY) + WATCHDOG_RESET (); + + /* the characters are read one by one, + * use the rxindex to know the next char to deliver + */ + c = *(unsigned char *) (rtx->rxbd.cbd_bufaddr+rtx->rxindex); + rtx->rxindex++; + + /* check if all char are readout, then make prepare for next receive */ + if (rtx->rxindex >= rtx->rxbd.cbd_datlen) { + rtx->rxindex = 0; + rtx->rxbd.cbd_sc |= BD_SC_EMPTY; + } + return(c); +} + +static int +smc_tstc(void) +{ + volatile smc_uart_t *up; + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile cpm8xx_t *cpmp = &(im->im_cpm); + volatile serialbuffer_t *rtx; + + up = (smc_uart_t *)&cpmp->cp_dparam[PROFF_SMC]; +#ifdef CONFIG_SYS_SMC_UCODE_PATCH + up = (smc_uart_t *) &cpmp->cp_dpmem[up->smc_rpbase]; +#endif + + rtx = (serialbuffer_t *)&cpmp->cp_dpmem[up->smc_rbase]; + + return !(rtx->rxbd.cbd_sc & BD_SC_EMPTY); +} + +struct serial_device serial_smc_device = +{ + "serial_smc", + "SMC", + smc_init, + smc_setbrg, + smc_getc, + smc_tstc, + smc_putc, + smc_puts, +}; + +#endif /* CONFIG_8xx_CONS_SMC1 || CONFIG_8xx_CONS_SMC2 */ + +#if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) || \ + defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4) + +static void +scc_setbrg (void) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile cpm8xx_t *cp = &(im->im_cpm); + + /* Set up the baud rate generator. + * See 8xx_io/commproc.c for details. + * + * Wire BRG1 to SCCx + */ + + cp->cp_sicr &= ~(0x000000FF << (8 * SCC_INDEX)); + + serial_setdivisor(cp); +} + +static int scc_init (void) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile scc_t *sp; + volatile scc_uart_t *up; + volatile cbd_t *tbdf, *rbdf; + volatile cpm8xx_t *cp = &(im->im_cpm); + uint dpaddr; +#if (SCC_INDEX != 2) || !defined(CONFIG_MPC850) + volatile iop8xx_t *ip = (iop8xx_t *)&(im->im_ioport); +#endif + + /* initialize pointers to SCC */ + + sp = (scc_t *) &(cp->cp_scc[SCC_INDEX]); + up = (scc_uart_t *) &cp->cp_dparam[PROFF_SCC]; + +#if defined(CONFIG_LWMON) && defined(CONFIG_8xx_CONS_SCC2) + { /* Disable Ethernet, enable Serial */ + uchar c; + + c = pic_read (0x61); + c &= ~0x40; /* enable COM3 */ + c |= 0x80; /* disable Ethernet */ + pic_write (0x61, c); + + /* enable RTS2 */ + cp->cp_pbpar |= 0x2000; + cp->cp_pbdat |= 0x2000; + cp->cp_pbdir |= 0x2000; + } +#endif /* CONFIG_LWMON */ + + /* Disable transmitter/receiver. */ + sp->scc_gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT); + +#if (SCC_INDEX == 2) && defined(CONFIG_MPC850) + /* + * The MPC850 has SCC3 on Port B + */ + cp->cp_pbpar |= 0x06; + cp->cp_pbdir &= ~0x06; + cp->cp_pbodr &= ~0x06; + +#elif (SCC_INDEX < 2) || !defined(CONFIG_IP860) + /* + * Standard configuration for SCC's is on Part A + */ + ip->iop_papar |= ((3 << (2 * SCC_INDEX))); + ip->iop_padir &= ~((3 << (2 * SCC_INDEX))); + ip->iop_paodr &= ~((3 << (2 * SCC_INDEX))); +#else + /* + * The IP860 has SCC3 and SCC4 on Port D + */ + ip->iop_pdpar |= ((3 << (2 * SCC_INDEX))); +#endif + + /* Allocate space for two buffer descriptors in the DP ram. */ + +#ifdef CONFIG_SYS_ALLOC_DPRAM + dpaddr = dpram_alloc_align (sizeof(cbd_t)*2 + 2, 8) ; +#else + dpaddr = CPM_SERIAL2_BASE ; +#endif + + /* Enable SDMA. */ + im->im_siu_conf.sc_sdcr = 0x0001; + + /* Set the physical address of the host memory buffers in + * the buffer descriptors. + */ + + rbdf = (cbd_t *)&cp->cp_dpmem[dpaddr]; + rbdf->cbd_bufaddr = (uint) (rbdf+2); + rbdf->cbd_sc = 0; + tbdf = rbdf + 1; + tbdf->cbd_bufaddr = ((uint) (rbdf+2)) + 1; + tbdf->cbd_sc = 0; + + /* Set up the baud rate generator. */ + scc_setbrg (); + + /* Set up the uart parameters in the parameter ram. */ + up->scc_genscc.scc_rbase = dpaddr; + up->scc_genscc.scc_tbase = dpaddr+sizeof(cbd_t); + + /* Initialize Tx/Rx parameters. */ + while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SCC, CPM_CR_INIT_TRX) | CPM_CR_FLG; + + while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ + ; + + up->scc_genscc.scc_rfcr = SCC_EB | 0x05; + up->scc_genscc.scc_tfcr = SCC_EB | 0x05; + + up->scc_genscc.scc_mrblr = 1; /* Single character receive */ + up->scc_maxidl = 0; /* disable max idle */ + up->scc_brkcr = 1; /* send one break character on stop TX */ + up->scc_parec = 0; + up->scc_frmec = 0; + up->scc_nosec = 0; + up->scc_brkec = 0; + up->scc_uaddr1 = 0; + up->scc_uaddr2 = 0; + up->scc_toseq = 0; + up->scc_char1 = 0x8000; + up->scc_char2 = 0x8000; + up->scc_char3 = 0x8000; + up->scc_char4 = 0x8000; + up->scc_char5 = 0x8000; + up->scc_char6 = 0x8000; + up->scc_char7 = 0x8000; + up->scc_char8 = 0x8000; + up->scc_rccm = 0xc0ff; + + /* Set low latency / small fifo. */ + sp->scc_gsmrh = SCC_GSMRH_RFW; + + /* Set SCC(x) clock mode to 16x + * See 8xx_io/commproc.c for details. + * + * Wire BRG1 to SCCn + */ + + /* Set UART mode, clock divider 16 on Tx and Rx */ + sp->scc_gsmrl &= ~0xF; + sp->scc_gsmrl |= + (SCC_GSMRL_MODE_UART | SCC_GSMRL_TDCR_16 | SCC_GSMRL_RDCR_16); + + sp->scc_psmr = 0; + sp->scc_psmr |= SCU_PSMR_CL; + + /* Mask all interrupts and remove anything pending. */ + sp->scc_sccm = 0; + sp->scc_scce = 0xffff; + sp->scc_dsr = 0x7e7e; + sp->scc_psmr = 0x3000; + + /* Make the first buffer the only buffer. */ + tbdf->cbd_sc |= BD_SC_WRAP; + rbdf->cbd_sc |= BD_SC_EMPTY | BD_SC_WRAP; + + /* Enable transmitter/receiver. */ + sp->scc_gsmrl |= (SCC_GSMRL_ENR | SCC_GSMRL_ENT); + + return (0); +} + +static void +scc_putc(const char c) +{ + volatile cbd_t *tbdf; + volatile char *buf; + volatile scc_uart_t *up; + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile cpm8xx_t *cpmp = &(im->im_cpm); + +#ifdef CONFIG_MODEM_SUPPORT + if (gd->be_quiet) + return; +#endif + + if (c == '\n') + scc_putc ('\r'); + + up = (scc_uart_t *)&cpmp->cp_dparam[PROFF_SCC]; + + tbdf = (cbd_t *)&cpmp->cp_dpmem[up->scc_genscc.scc_tbase]; + + /* Wait for last character to go. */ + + buf = (char *)tbdf->cbd_bufaddr; + + *buf = c; + tbdf->cbd_datlen = 1; + tbdf->cbd_sc |= BD_SC_READY; + __asm__("eieio"); + + while (tbdf->cbd_sc & BD_SC_READY) { + __asm__("eieio"); + WATCHDOG_RESET (); + } +} + +static void +scc_puts (const char *s) +{ + while (*s) { + scc_putc (*s++); + } +} + +static int +scc_getc(void) +{ + volatile cbd_t *rbdf; + volatile unsigned char *buf; + volatile scc_uart_t *up; + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile cpm8xx_t *cpmp = &(im->im_cpm); + unsigned char c; + + up = (scc_uart_t *)&cpmp->cp_dparam[PROFF_SCC]; + + rbdf = (cbd_t *)&cpmp->cp_dpmem[up->scc_genscc.scc_rbase]; + + /* Wait for character to show up. */ + buf = (unsigned char *)rbdf->cbd_bufaddr; + + while (rbdf->cbd_sc & BD_SC_EMPTY) + WATCHDOG_RESET (); + + c = *buf; + rbdf->cbd_sc |= BD_SC_EMPTY; + + return(c); +} + +static int +scc_tstc(void) +{ + volatile cbd_t *rbdf; + volatile scc_uart_t *up; + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + volatile cpm8xx_t *cpmp = &(im->im_cpm); + + up = (scc_uart_t *)&cpmp->cp_dparam[PROFF_SCC]; + + rbdf = (cbd_t *)&cpmp->cp_dpmem[up->scc_genscc.scc_rbase]; + + return(!(rbdf->cbd_sc & BD_SC_EMPTY)); +} + +struct serial_device serial_scc_device = +{ + "serial_scc", + "SCC", + scc_init, + scc_setbrg, + scc_getc, + scc_tstc, + scc_putc, + scc_puts, +}; + +#endif /* CONFIG_8xx_CONS_SCCx */ + +#ifdef CONFIG_MODEM_SUPPORT +void disable_putc(void) +{ + gd->be_quiet = 1; +} + +void enable_putc(void) +{ + gd->be_quiet = 0; +} +#endif + +#if defined(CONFIG_CMD_KGDB) + +void +kgdb_serial_init(void) +{ + int i = -1; + + if (strcmp(default_serial_console()->ctlr, "SMC") == 0) + { +#if defined(CONFIG_8xx_CONS_SMC1) + i = 1; +#elif defined(CONFIG_8xx_CONS_SMC2) + i = 2; +#endif + } + else if (strcmp(default_serial_console()->ctlr, "SMC") == 0) + { +#if defined(CONFIG_8xx_CONS_SCC1) + i = 1; +#elif defined(CONFIG_8xx_CONS_SCC2) + i = 2; +#elif defined(CONFIG_8xx_CONS_SCC3) + i = 3; +#elif defined(CONFIG_8xx_CONS_SCC4) + i = 4; +#endif + } + + if (i >= 0) + { + serial_printf("[on %s%d] ", default_serial_console()->ctlr, i); + } +} + +void +putDebugChar (int c) +{ + serial_putc (c); +} + +void +putDebugStr (const char *str) +{ + serial_puts (str); +} + +int +getDebugChar (void) +{ + return serial_getc(); +} + +void +kgdb_interruptible (int yes) +{ + return; +} +#endif + +#endif /* CONFIG_8xx_CONS_NONE */ diff --git a/arch/ppc/cpu/mpc8xx/speed.c b/arch/ppc/cpu/mpc8xx/speed.c new file mode 100644 index 0000000..f309f29 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/speed.c @@ -0,0 +1,416 @@ +/* + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <mpc8xx.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if !defined(CONFIG_8xx_CPUCLK_DEFAULT) || defined(CONFIG_SYS_MEASURE_CPUCLK) || defined(DEBUG) + +#define PITC_SHIFT 16 +#define PITR_SHIFT 16 +/* pitc values to time for 58/8192 seconds (about 70.8 milliseconds) */ +#define SPEED_PIT_COUNTS 58 +#define SPEED_PITC ((SPEED_PIT_COUNTS - 1) << PITC_SHIFT) +#define SPEED_PITC_INIT ((SPEED_PIT_COUNTS + 1) << PITC_SHIFT) + +/* Access functions for the Machine State Register */ +static __inline__ unsigned long get_msr(void) +{ + unsigned long msr; + + asm volatile("mfmsr %0" : "=r" (msr) :); + return msr; +} + +static __inline__ void set_msr(unsigned long msr) +{ + asm volatile("mtmsr %0" : : "r" (msr)); +} + +/* ------------------------------------------------------------------------- */ + +/* + * Measure CPU clock speed (core clock GCLK1, GCLK2), + * also determine bus clock speed (checking bus divider factor) + * + * (Approx. GCLK frequency in Hz) + * + * Initializes timer 2 and PIT, but disables them before return. + * [Use timer 2, because MPC823 CPUs mask 0.x do not have timers 3 and 4] + * + * When measuring the CPU clock against the PIT, we count cpu clocks + * for 58/8192 seconds with a prescale divide by 177 for the cpu clock. + * These strange values for the timing interval and prescaling are used + * because the formula for the CPU clock is: + * + * CPU clock = count * (177 * (8192 / 58)) + * + * = count * 24999.7241 + * + * which is very close to + * + * = count * 25000 + * + * Since the count gives the CPU clock divided by 25000, we can get + * the CPU clock rounded to the nearest 0.1 MHz by + * + * CPU clock = ((count + 2) / 4) * 100000; + * + * The rounding is important since the measurement is sometimes going + * to be high or low by 0.025 MHz, depending on exactly how the clocks + * and counters interact. By rounding we get the exact answer for any + * CPU clock that is an even multiple of 0.1 MHz. + */ + +unsigned long measure_gclk(void) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + volatile cpmtimer8xx_t *timerp = &immr->im_cpmtimer; + ulong timer2_val; + ulong msr_val; + +#ifdef CONFIG_SYS_8XX_XIN + /* dont use OSCM, only use EXTCLK/512 */ + immr->im_clkrst.car_sccr |= SCCR_RTSEL | SCCR_RTDIV; +#else + immr->im_clkrst.car_sccr &= ~(SCCR_RTSEL | SCCR_RTDIV); +#endif + + /* Reset + Stop Timer 2, no cascading + */ + timerp->cpmt_tgcr &= ~(TGCR_CAS2 | TGCR_RST2); + + /* Keep stopped, halt in debug mode + */ + timerp->cpmt_tgcr |= (TGCR_FRZ2 | TGCR_STP2); + + /* Timer 2 setup: + * Output ref. interrupt disable, int. clock + * Prescale by 177. Note that prescaler divides by value + 1 + * so we must subtract 1 here. + */ + timerp->cpmt_tmr2 = ((177 - 1) << TMR_PS_SHIFT) | TMR_ICLK_IN_GEN; + + timerp->cpmt_tcn2 = 0; /* reset state */ + timerp->cpmt_tgcr |= TGCR_RST2; /* enable timer 2 */ + + /* + * PIT setup: + * + * We want to time for SPEED_PITC_COUNTS counts (of 8192 Hz), + * so the count value would be SPEED_PITC_COUNTS - 1. + * But there would be an uncertainty in the start time of 1/4 + * count since when we enable the PIT the count is not + * synchronized to the 32768 Hz oscillator. The trick here is + * to start the count higher and wait until the PIT count + * changes to the required value before starting timer 2. + * + * One count high should be enough, but occasionally the start + * is off by 1 or 2 counts of 32768 Hz. With the start value + * set two counts high it seems very reliable. + */ + + immr->im_sitk.sitk_pitck = KAPWR_KEY; /* PIT initialization */ + immr->im_sit.sit_pitc = SPEED_PITC_INIT; + + immr->im_sitk.sitk_piscrk = KAPWR_KEY; + immr->im_sit.sit_piscr = CONFIG_SYS_PISCR; + + /* + * Start measurement - disable interrupts, just in case + */ + msr_val = get_msr (); + set_msr (msr_val & ~MSR_EE); + + immr->im_sit.sit_piscr |= PISCR_PTE; + + /* spin until get exact count when we want to start */ + while (immr->im_sit.sit_pitr > SPEED_PITC); + + timerp->cpmt_tgcr &= ~TGCR_STP2; /* Start Timer 2 */ + while ((immr->im_sit.sit_piscr & PISCR_PS) == 0); + timerp->cpmt_tgcr |= TGCR_STP2; /* Stop Timer 2 */ + + /* re-enable external interrupts if they were on */ + set_msr (msr_val); + + /* Disable timer and PIT + */ + timer2_val = timerp->cpmt_tcn2; /* save before reset timer */ + + timerp->cpmt_tgcr &= ~(TGCR_RST2 | TGCR_FRZ2 | TGCR_STP2); + immr->im_sit.sit_piscr &= ~PISCR_PTE; + +#if defined(CONFIG_SYS_8XX_XIN) + /* not using OSCM, using XIN, so scale appropriately */ + return (((timer2_val + 2) / 4) * (CONFIG_SYS_8XX_XIN/512))/8192 * 100000L; +#else + return ((timer2_val + 2) / 4) * 100000L; /* convert to Hz */ +#endif +} + +#endif + +void get_brgclk(uint sccr) +{ + uint divider = 0; + + switch((sccr&SCCR_DFBRG11)>>11){ + case 0: + divider = 1; + break; + case 1: + divider = 4; + break; + case 2: + divider = 16; + break; + case 3: + divider = 64; + break; + } + gd->brg_clk = gd->cpu_clk/divider; +} + +#if !defined(CONFIG_8xx_CPUCLK_DEFAULT) + +/* + * get_clocks() fills in gd->cpu_clock depending on CONFIG_8xx_GCLK_FREQ + * or (if it is not defined) measure_gclk() (which uses the ref clock) + * from above. + */ +int get_clocks (void) +{ + uint immr = get_immr (0); /* Return full IMMR contents */ + volatile immap_t *immap = (immap_t *) (immr & 0xFFFF0000); + uint sccr = immap->im_clkrst.car_sccr; + /* + * If for some reason measuring the gclk frequency won't + * work, we return the hardwired value. + * (For example, the cogent CMA286-60 CPU module has no + * separate oscillator for PITRTCLK) + */ +#if defined(CONFIG_8xx_GCLK_FREQ) + gd->cpu_clk = CONFIG_8xx_GCLK_FREQ; +#elif defined(CONFIG_8xx_OSCLK) +#define PLPRCR_val(a) ((pll & PLPRCR_ ## a ## _MSK) >> PLPRCR_ ## a ## _SHIFT) + uint pll = immap->im_clkrst.car_plprcr; + uint clk; + + if ((immr & 0x0FFF) >= MPC8xx_NEW_CLK) { /* MPC866/87x/88x series */ + clk = ((CONFIG_8xx_OSCLK / (PLPRCR_val(PDF)+1)) * + (PLPRCR_val(MFI) + PLPRCR_val(MFN) / (PLPRCR_val(MFD)+1))) / + (1<<PLPRCR_val(S)); + } else { + clk = CONFIG_8xx_OSCLK * (PLPRCR_val(MF)+1); + } + if (pll & PLPRCR_CSRC) { /* Low frequency division factor is used */ + gd->cpu_clk = clk / (2 << ((sccr >> 8) & 7)); + } else { /* High frequency division factor is used */ + gd->cpu_clk = clk / (1 << ((sccr >> 5) & 7)); + } +#else + gd->cpu_clk = measure_gclk(); +#endif /* CONFIG_8xx_GCLK_FREQ */ + + if ((sccr & SCCR_EBDF11) == 0) { + /* No Bus Divider active */ + gd->bus_clk = gd->cpu_clk; + } else { + /* The MPC8xx has only one BDF: half clock speed */ + gd->bus_clk = gd->cpu_clk / 2; + } + + get_brgclk(sccr); + + return (0); +} + +#else /* CONFIG_8xx_CPUCLK_DEFAULT defined, use dynamic clock setting */ + +static long init_pll_866 (long clk); + +/* This function sets up PLL (init_pll_866() is called) and + * fills gd->cpu_clk and gd->bus_clk according to the environment + * variable 'cpuclk' or to CONFIG_8xx_CPUCLK_DEFAULT (if 'cpuclk' + * contains invalid value). + * This functions requires an MPC866 or newer series CPU. + */ +int get_clocks_866 (void) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + char tmp[64]; + long cpuclk = 0; + long sccr_reg; + + if (getenv_r ("cpuclk", tmp, sizeof (tmp)) > 0) + cpuclk = simple_strtoul (tmp, NULL, 10) * 1000000; + + if ((CONFIG_SYS_8xx_CPUCLK_MIN > cpuclk) || (CONFIG_SYS_8xx_CPUCLK_MAX < cpuclk)) + cpuclk = CONFIG_8xx_CPUCLK_DEFAULT; + + gd->cpu_clk = init_pll_866 (cpuclk); +#if defined(CONFIG_SYS_MEASURE_CPUCLK) + gd->cpu_clk = measure_gclk (); +#endif + + get_brgclk(immr->im_clkrst.car_sccr); + + /* if cpu clock <= 66 MHz then set bus division factor to 1, + * otherwise set it to 2 + */ + sccr_reg = immr->im_clkrst.car_sccr; + sccr_reg &= ~SCCR_EBDF11; + + if (gd->cpu_clk <= 66000000) { + sccr_reg |= SCCR_EBDF00; /* bus division factor = 1 */ + gd->bus_clk = gd->cpu_clk; + } else { + sccr_reg |= SCCR_EBDF01; /* bus division factor = 2 */ + gd->bus_clk = gd->cpu_clk / 2; + } + immr->im_clkrst.car_sccr = sccr_reg; + + return (0); +} + +/* Adjust sdram refresh rate to actual CPU clock. + */ +int sdram_adjust_866 (void) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + long mamr; + + mamr = immr->im_memctl.memc_mamr; + mamr &= ~MAMR_PTA_MSK; + mamr |= ((gd->cpu_clk / CONFIG_SYS_PTA_PER_CLK) << MAMR_PTA_SHIFT); + immr->im_memctl.memc_mamr = mamr; + + return (0); +} + +/* Configure PLL for MPC866/859/885 CPU series + * PLL multiplication factor is set to the value nearest to the desired clk, + * assuming a oscclk of 10 MHz. + */ +static long init_pll_866 (long clk) +{ + extern void plprcr_write_866 (long); + + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + long n, plprcr; + char mfi, mfn, mfd, s, pdf; + long step_mfi, step_mfn; + + if (clk < 20000000) { + clk *= 2; + pdf = 1; + } else { + pdf = 0; + } + + if (clk < 40000000) { + s = 2; + step_mfi = CONFIG_8xx_OSCLK / 4; + mfd = 7; + step_mfn = CONFIG_8xx_OSCLK / 30; + } else if (clk < 80000000) { + s = 1; + step_mfi = CONFIG_8xx_OSCLK / 2; + mfd = 14; + step_mfn = CONFIG_8xx_OSCLK / 30; + } else { + s = 0; + step_mfi = CONFIG_8xx_OSCLK; + mfd = 29; + step_mfn = CONFIG_8xx_OSCLK / 30; + } + + /* Calculate integer part of multiplication factor + */ + n = clk / step_mfi; + mfi = (char)n; + + /* Calculate numerator of fractional part of multiplication factor + */ + n = clk - (n * step_mfi); + mfn = (char)(n / step_mfn); + + /* Calculate effective clk + */ + n = ((mfi * step_mfi) + (mfn * step_mfn)) / (pdf + 1); + + immr->im_clkrstk.cark_plprcrk = KAPWR_KEY; + + plprcr = (immr->im_clkrst.car_plprcr & ~(PLPRCR_MFN_MSK + | PLPRCR_MFD_MSK | PLPRCR_S_MSK + | PLPRCR_MFI_MSK | PLPRCR_DBRMO + | PLPRCR_PDF_MSK)) + | (mfn << PLPRCR_MFN_SHIFT) + | (mfd << PLPRCR_MFD_SHIFT) + | (s << PLPRCR_S_SHIFT) + | (mfi << PLPRCR_MFI_SHIFT) + | (pdf << PLPRCR_PDF_SHIFT); + + if( (mfn > 0) && ((mfd / mfn) > 10) ) + plprcr |= PLPRCR_DBRMO; + + plprcr_write_866 (plprcr); /* set value using SIU4/9 workaround */ + immr->im_clkrstk.cark_plprcrk = 0x00000000; + + return (n); +} + +#endif /* CONFIG_8xx_CPUCLK_DEFAULT */ + +#if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \ + && !defined(CONFIG_TQM885D) +/* + * Adjust sdram refresh rate to actual CPU clock + * and set timebase source according to actual CPU clock + */ +int adjust_sdram_tbs_8xx (void) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + long mamr; + long sccr; + + mamr = immr->im_memctl.memc_mamr; + mamr &= ~MAMR_PTA_MSK; + mamr |= ((gd->cpu_clk / CONFIG_SYS_PTA_PER_CLK) << MAMR_PTA_SHIFT); + immr->im_memctl.memc_mamr = mamr; + + if (gd->cpu_clk < 67000000) { + sccr = immr->im_clkrst.car_sccr; + sccr |= SCCR_TBS; + immr->im_clkrst.car_sccr = sccr; + } + + return (0); +} +#endif /* CONFIG_TQM8xxL/M, !TQM866M, !TQM885D */ + +/* ------------------------------------------------------------------------- */ diff --git a/arch/ppc/cpu/mpc8xx/spi.c b/arch/ppc/cpu/mpc8xx/spi.c new file mode 100644 index 0000000..b2ac23e --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/spi.c @@ -0,0 +1,560 @@ +/* + * Copyright (c) 2001 Navin Boppuri / Prashant Patel + * <nboppuri@trinetcommunication.com>, + * <pmpatel@trinetcommunication.com> + * Copyright (c) 2001 Gerd Mennchen <Gerd.Mennchen@icn.siemens.de> + * Copyright (c) 2001 Wolfgang Denk, DENX Software Engineering, <wd@denx.de>. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * MPC8xx CPM SPI interface. + * + * Parts of this code are probably not portable and/or specific to + * the board which I used for the tests. Please send fixes/complaints + * to wd@denx.de + * + */ + +#include <common.h> +#include <mpc8xx.h> +#include <commproc.h> +#include <linux/ctype.h> +#include <malloc.h> +#include <post.h> +#include <serial.h> + +#if (defined(CONFIG_SPI)) || (CONFIG_POST & CONFIG_SYS_POST_SPI) + +/* Warning: + * You cannot enable DEBUG for early system initalization, i. e. when + * this driver is used to read environment parameters like "baudrate" + * from EEPROM which are used to initialize the serial port which is + * needed to print the debug messages... + */ +#undef DEBUG + +#define SPI_EEPROM_WREN 0x06 +#define SPI_EEPROM_RDSR 0x05 +#define SPI_EEPROM_READ 0x03 +#define SPI_EEPROM_WRITE 0x02 + +/* --------------------------------------------------------------- + * Offset for initial SPI buffers in DPRAM: + * We need a 520 byte scratch DPRAM area to use at an early stage. + * It is used between the two initialization calls (spi_init_f() + * and spi_init_r()). + * The value 0xb00 makes it far enough from the start of the data + * area (as well as from the stack pointer). + * --------------------------------------------------------------- */ +#ifndef CONFIG_SYS_SPI_INIT_OFFSET +#define CONFIG_SYS_SPI_INIT_OFFSET 0xB00 +#endif + +#ifdef DEBUG + +#define DPRINT(a) printf a; +/* ----------------------------------------------- + * Helper functions to peek into tx and rx buffers + * ----------------------------------------------- */ +static const char * const hex_digit = "0123456789ABCDEF"; + +static char quickhex (int i) +{ + return hex_digit[i]; +} + +static void memdump (void *pv, int num) +{ + int i; + unsigned char *pc = (unsigned char *) pv; + + for (i = 0; i < num; i++) + printf ("%c%c ", quickhex (pc[i] >> 4), quickhex (pc[i] & 0x0f)); + printf ("\t"); + for (i = 0; i < num; i++) + printf ("%c", isprint (pc[i]) ? pc[i] : '.'); + printf ("\n"); +} +#else /* !DEBUG */ + +#define DPRINT(a) + +#endif /* DEBUG */ + +/* ------------------- + * Function prototypes + * ------------------- */ +void spi_init (void); + +ssize_t spi_read (uchar *, int, uchar *, int); +ssize_t spi_write (uchar *, int, uchar *, int); +ssize_t spi_xfer (size_t); + +/* ------------------- + * Variables + * ------------------- */ + +#define MAX_BUFFER 0x104 + +/* ---------------------------------------------------------------------- + * Initially we place the RX and TX buffers at a fixed location in DPRAM! + * ---------------------------------------------------------------------- */ +static uchar *rxbuf = + (uchar *)&((cpm8xx_t *)&((immap_t *)CONFIG_SYS_IMMR)->im_cpm)->cp_dpmem + [CONFIG_SYS_SPI_INIT_OFFSET]; +static uchar *txbuf = + (uchar *)&((cpm8xx_t *)&((immap_t *)CONFIG_SYS_IMMR)->im_cpm)->cp_dpmem + [CONFIG_SYS_SPI_INIT_OFFSET+MAX_BUFFER]; + +/* ************************************************************************** + * + * Function: spi_init_f + * + * Description: Init SPI-Controller (ROM part) + * + * return: --- + * + * *********************************************************************** */ +void spi_init_f (void) +{ + unsigned int dpaddr; + + volatile spi_t *spi; + volatile immap_t *immr; + volatile cpic8xx_t *cpi; + volatile cpm8xx_t *cp; + volatile iop8xx_t *iop; + volatile cbd_t *tbdf, *rbdf; + + immr = (immap_t *) CONFIG_SYS_IMMR; + cpi = (cpic8xx_t *)&immr->im_cpic; + iop = (iop8xx_t *) &immr->im_ioport; + cp = (cpm8xx_t *) &immr->im_cpm; + +#ifdef CONFIG_SYS_SPI_UCODE_PATCH + spi = (spi_t *)&cp->cp_dpmem[spi->spi_rpbase]; +#else + spi = (spi_t *)&cp->cp_dparam[PROFF_SPI]; + /* Disable relocation */ + spi->spi_rpbase = 0; +#endif + +/* 1 */ + /* ------------------------------------------------ + * Initialize Port B SPI pins -> page 34-8 MPC860UM + * (we are only in Master Mode !) + * ------------------------------------------------ */ + + /* -------------------------------------------- + * GPIO or per. Function + * PBPAR[28] = 1 [0x00000008] -> PERI: (SPIMISO) + * PBPAR[29] = 1 [0x00000004] -> PERI: (SPIMOSI) + * PBPAR[30] = 1 [0x00000002] -> PERI: (SPICLK) + * PBPAR[31] = 0 [0x00000001] -> GPIO: (CS for PCUE/CCM-EEPROM) + * -------------------------------------------- */ + cp->cp_pbpar |= 0x0000000E; /* set bits */ + cp->cp_pbpar &= ~0x00000001; /* reset bit */ + + /* ---------------------------------------------- + * In/Out or per. Function 0/1 + * PBDIR[28] = 1 [0x00000008] -> PERI1: SPIMISO + * PBDIR[29] = 1 [0x00000004] -> PERI1: SPIMOSI + * PBDIR[30] = 1 [0x00000002] -> PERI1: SPICLK + * PBDIR[31] = 1 [0x00000001] -> GPIO OUT: CS for PCUE/CCM-EEPROM + * ---------------------------------------------- */ + cp->cp_pbdir |= 0x0000000F; + + /* ---------------------------------------------- + * open drain or active output + * PBODR[28] = 1 [0x00000008] -> open drain: SPIMISO + * PBODR[29] = 0 [0x00000004] -> active output SPIMOSI + * PBODR[30] = 0 [0x00000002] -> active output: SPICLK + * PBODR[31] = 0 [0x00000001] -> active output: GPIO OUT: CS for PCUE/CCM + * ---------------------------------------------- */ + + cp->cp_pbodr |= 0x00000008; + cp->cp_pbodr &= ~0x00000007; + + /* Initialize the parameter ram. + * We need to make sure many things are initialized to zero + */ + spi->spi_rstate = 0; + spi->spi_rdp = 0; + spi->spi_rbptr = 0; + spi->spi_rbc = 0; + spi->spi_rxtmp = 0; + spi->spi_tstate = 0; + spi->spi_tdp = 0; + spi->spi_tbptr = 0; + spi->spi_tbc = 0; + spi->spi_txtmp = 0; + + /* Allocate space for one transmit and one receive buffer + * descriptor in the DP ram + */ +#ifdef CONFIG_SYS_ALLOC_DPRAM + dpaddr = dpram_alloc_align (sizeof(cbd_t)*2, 8); +#else + dpaddr = CPM_SPI_BASE; +#endif + +/* 3 */ + /* Set up the SPI parameters in the parameter ram */ + spi->spi_rbase = dpaddr; + spi->spi_tbase = dpaddr + sizeof (cbd_t); + + /***********IMPORTANT******************/ + + /* + * Setting transmit and receive buffer descriptor pointers + * initially to rbase and tbase. Only the microcode patches + * documentation talks about initializing this pointer. This + * is missing from the sample I2C driver. If you dont + * initialize these pointers, the kernel hangs. + */ + spi->spi_rbptr = spi->spi_rbase; + spi->spi_tbptr = spi->spi_tbase; + +/* 4 */ +#ifdef CONFIG_SYS_SPI_UCODE_PATCH + /* + * Initialize required parameters if using microcode patch. + */ + spi->spi_rstate = 0; + spi->spi_tstate = 0; +#else + /* Init SPI Tx + Rx Parameters */ + while (cp->cp_cpcr & CPM_CR_FLG) + ; + cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SPI, CPM_CR_INIT_TRX) | CPM_CR_FLG; + while (cp->cp_cpcr & CPM_CR_FLG) + ; +#endif /* CONFIG_SYS_SPI_UCODE_PATCH */ + +/* 5 */ + /* Set SDMA configuration register */ + immr->im_siu_conf.sc_sdcr = 0x0001; + +/* 6 */ + /* Set to big endian. */ + spi->spi_tfcr = SMC_EB; + spi->spi_rfcr = SMC_EB; + +/* 7 */ + /* Set maximum receive size. */ + spi->spi_mrblr = MAX_BUFFER; + +/* 8 + 9 */ + /* tx and rx buffer descriptors */ + tbdf = (cbd_t *) & cp->cp_dpmem[spi->spi_tbase]; + rbdf = (cbd_t *) & cp->cp_dpmem[spi->spi_rbase]; + + tbdf->cbd_sc &= ~BD_SC_READY; + rbdf->cbd_sc &= ~BD_SC_EMPTY; + + /* Set the bd's rx and tx buffer address pointers */ + rbdf->cbd_bufaddr = (ulong) rxbuf; + tbdf->cbd_bufaddr = (ulong) txbuf; + +/* 10 + 11 */ + cp->cp_spim = 0; /* Mask all SPI events */ + cp->cp_spie = SPI_EMASK; /* Clear all SPI events */ + + return; +} + +/* ************************************************************************** + * + * Function: spi_init_r + * + * Description: Init SPI-Controller (RAM part) - + * The malloc engine is ready and we can move our buffers to + * normal RAM + * + * return: --- + * + * *********************************************************************** */ +void spi_init_r (void) +{ + volatile cpm8xx_t *cp; + volatile spi_t *spi; + volatile immap_t *immr; + volatile cbd_t *tbdf, *rbdf; + + immr = (immap_t *) CONFIG_SYS_IMMR; + cp = (cpm8xx_t *) &immr->im_cpm; + +#ifdef CONFIG_SYS_SPI_UCODE_PATCH + spi = (spi_t *)&cp->cp_dpmem[spi->spi_rpbase]; +#else + spi = (spi_t *)&cp->cp_dparam[PROFF_SPI]; + /* Disable relocation */ + spi->spi_rpbase = 0; +#endif + + /* tx and rx buffer descriptors */ + tbdf = (cbd_t *) & cp->cp_dpmem[spi->spi_tbase]; + rbdf = (cbd_t *) & cp->cp_dpmem[spi->spi_rbase]; + + /* Allocate memory for RX and TX buffers */ + rxbuf = (uchar *) malloc (MAX_BUFFER); + txbuf = (uchar *) malloc (MAX_BUFFER); + + rbdf->cbd_bufaddr = (ulong) rxbuf; + tbdf->cbd_bufaddr = (ulong) txbuf; + + return; +} + +/**************************************************************************** + * Function: spi_write + **************************************************************************** */ +ssize_t spi_write (uchar *addr, int alen, uchar *buffer, int len) +{ + int i; + + memset(rxbuf, 0, MAX_BUFFER); + memset(txbuf, 0, MAX_BUFFER); + *txbuf = SPI_EEPROM_WREN; /* write enable */ + spi_xfer(1); + memcpy(txbuf, addr, alen); + *txbuf = SPI_EEPROM_WRITE; /* WRITE memory array */ + memcpy(alen + txbuf, buffer, len); + spi_xfer(alen + len); + /* ignore received data */ + for (i = 0; i < 1000; i++) { + *txbuf = SPI_EEPROM_RDSR; /* read status */ + txbuf[1] = 0; + spi_xfer(2); + if (!(rxbuf[1] & 1)) { + break; + } + udelay(1000); + } + if (i >= 1000) { + printf ("*** spi_write: Time out while writing!\n"); + } + + return len; +} + +/**************************************************************************** + * Function: spi_read + **************************************************************************** */ +ssize_t spi_read (uchar *addr, int alen, uchar *buffer, int len) +{ + memset(rxbuf, 0, MAX_BUFFER); + memset(txbuf, 0, MAX_BUFFER); + memcpy(txbuf, addr, alen); + *txbuf = SPI_EEPROM_READ; /* READ memory array */ + + /* + * There is a bug in 860T (?) that cuts the last byte of input + * if we're reading into DPRAM. The solution we choose here is + * to always read len+1 bytes (we have one extra byte at the + * end of the buffer). + */ + spi_xfer(alen + len + 1); + memcpy(buffer, alen + rxbuf, len); + + return len; +} + +/**************************************************************************** + * Function: spi_xfer + **************************************************************************** */ +ssize_t spi_xfer (size_t count) +{ + volatile immap_t *immr; + volatile cpm8xx_t *cp; + volatile spi_t *spi; + cbd_t *tbdf, *rbdf; + ushort loop; + int tm; + + DPRINT (("*** spi_xfer entered ***\n")); + + immr = (immap_t *) CONFIG_SYS_IMMR; + cp = (cpm8xx_t *) &immr->im_cpm; + +#ifdef CONFIG_SYS_SPI_UCODE_PATCH + spi = (spi_t *)&cp->cp_dpmem[spi->spi_rpbase]; +#else + spi = (spi_t *)&cp->cp_dparam[PROFF_SPI]; + /* Disable relocation */ + spi->spi_rpbase = 0; +#endif + + tbdf = (cbd_t *) & cp->cp_dpmem[spi->spi_tbase]; + rbdf = (cbd_t *) & cp->cp_dpmem[spi->spi_rbase]; + + /* Set CS for device */ + cp->cp_pbdat &= ~0x0001; + + /* Setting tx bd status and data length */ + tbdf->cbd_sc = BD_SC_READY | BD_SC_LAST | BD_SC_WRAP; + tbdf->cbd_datlen = count; + + DPRINT (("*** spi_xfer: Bytes to be xferred: %d ***\n", + tbdf->cbd_datlen)); + + /* Setting rx bd status and data length */ + rbdf->cbd_sc = BD_SC_EMPTY | BD_SC_WRAP; + rbdf->cbd_datlen = 0; /* rx length has no significance */ + + loop = cp->cp_spmode & SPMODE_LOOP; + cp->cp_spmode = /*SPMODE_DIV16 |*/ /* BRG/16 mode not used here */ + loop | + SPMODE_REV | + SPMODE_MSTR | + SPMODE_EN | + SPMODE_LEN(8) | /* 8 Bits per char */ + SPMODE_PM(0x8) ; /* medium speed */ + cp->cp_spim = 0; /* Mask all SPI events */ + cp->cp_spie = SPI_EMASK; /* Clear all SPI events */ + + /* start spi transfer */ + DPRINT (("*** spi_xfer: Performing transfer ...\n")); + cp->cp_spcom |= SPI_STR; /* Start transmit */ + + /* -------------------------------- + * Wait for SPI transmit to get out + * or time out (1 second = 1000 ms) + * -------------------------------- */ + for (tm=0; tm<1000; ++tm) { + if (cp->cp_spie & SPI_TXB) { /* Tx Buffer Empty */ + DPRINT (("*** spi_xfer: Tx buffer empty\n")); + break; + } + if ((tbdf->cbd_sc & BD_SC_READY) == 0) { + DPRINT (("*** spi_xfer: Tx BD done\n")); + break; + } + udelay (1000); + } + if (tm >= 1000) { + printf ("*** spi_xfer: Time out while xferring to/from SPI!\n"); + } + DPRINT (("*** spi_xfer: ... transfer ended\n")); + +#ifdef DEBUG + printf ("\nspi_xfer: txbuf after xfer\n"); + memdump ((void *) txbuf, 16); /* dump of txbuf before transmit */ + printf ("spi_xfer: rxbuf after xfer\n"); + memdump ((void *) rxbuf, 16); /* dump of rxbuf after transmit */ + printf ("\n"); +#endif + + /* Clear CS for device */ + cp->cp_pbdat |= 0x0001; + + return count; +} +#endif /* CONFIG_SPI || (CONFIG_POST & CONFIG_SYS_POST_SPI) */ + +/* + * SPI test + * + * The Serial Peripheral Interface (SPI) is tested in the local loopback mode. + * The interface is configured accordingly and several packets + * are transfered. The configurable test parameters are: + * TEST_MIN_LENGTH - minimum size of packet to transfer + * TEST_MAX_LENGTH - maximum size of packet to transfer + * TEST_NUM - number of tests + */ + +#if CONFIG_POST & CONFIG_SYS_POST_SPI + +#define TEST_MIN_LENGTH 1 +#define TEST_MAX_LENGTH MAX_BUFFER +#define TEST_NUM 1 + +static void packet_fill (char * packet, int length) +{ + char c = (char) length; + int i; + + for (i = 0; i < length; i++) + { + packet[i] = c++; + } +} + +static int packet_check (char * packet, int length) +{ + char c = (char) length; + int i; + + for (i = 0; i < length; i++) { + if (packet[i] != c++) return -1; + } + + return 0; +} + +int spi_post_test (int flags) +{ + int res = -1; + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + volatile cpm8xx_t *cp = (cpm8xx_t *) & immr->im_cpm; + int i; + int l; + + spi_init_f (); + spi_init_r (); + + cp->cp_spmode |= SPMODE_LOOP; + + for (i = 0; i < TEST_NUM; i++) { + for (l = TEST_MIN_LENGTH; l <= TEST_MAX_LENGTH; l += 8) { + packet_fill ((char *)txbuf, l); + + spi_xfer (l); + + if (packet_check ((char *)rxbuf, l) < 0) { + goto Done; + } + } + } + + res = 0; + + Done: + + cp->cp_spmode &= ~SPMODE_LOOP; + + /* + * SCC2 parameter RAM space overlaps + * the SPI parameter RAM space. So we need to restore + * the SCC2 configuration if it is used by UART. + */ + +#if !defined(CONFIG_8xx_CONS_NONE) + serial_reinit_all (); +#endif + + if (res != 0) { + post_log ("SPI test failed\n"); + } + + return res; +} +#endif /* CONFIG_POST & CONFIG_SYS_POST_SPI */ diff --git a/arch/ppc/cpu/mpc8xx/start.S b/arch/ppc/cpu/mpc8xx/start.S new file mode 100644 index 0000000..7cf602f --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/start.S @@ -0,0 +1,684 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2000,2001,2002 Wolfgang Denk <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* U-Boot - Startup Code for PowerPC based Embedded Boards + * + * + * The processor starts at 0x00000100 and the code is executed + * from flash. The code is organized to be at an other address + * in memory, but as long we don't jump around before relocating, + * board_init lies at a quite high address and when the cpu has + * jumped there, everything is ok. + * This works because the cpu gives the FLASH (CS0) the whole + * address space at startup, and board_init lies as a echo of + * the flash somewhere up there in the memory map. + * + * board_init will change CS0 to be positioned at the correct + * address and (s)dram will be positioned at address 0 + */ +#include <config.h> +#include <mpc8xx.h> +#include <timestamp.h> +#include <version.h> + +#define CONFIG_8xx 1 /* needed for Linux kernel header files */ +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +/* We don't want the MMU yet. +*/ +#undef MSR_KERNEL +#define MSR_KERNEL ( MSR_ME | MSR_RI ) /* Machine Check and Recoverable Interr. */ + +/* + * Set up GOT: Global Offset Table + * + * Use r12 to access the GOT + */ + START_GOT + GOT_ENTRY(_GOT2_TABLE_) + GOT_ENTRY(_FIXUP_TABLE_) + + GOT_ENTRY(_start) + GOT_ENTRY(_start_of_vectors) + GOT_ENTRY(_end_of_vectors) + GOT_ENTRY(transfer_to_handler) + + GOT_ENTRY(__init_end) + GOT_ENTRY(_end) + GOT_ENTRY(__bss_start) + END_GOT + +/* + * r3 - 1st arg to board_init(): IMMP pointer + * r4 - 2nd arg to board_init(): boot flag + */ + .text + .long 0x27051956 /* U-Boot Magic Number */ + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" + .ascii CONFIG_IDENT_STRING, "\0" + + . = EXC_OFF_SYS_RESET + .globl _start +_start: + lis r3, CONFIG_SYS_IMMR@h /* position IMMR */ + mtspr 638, r3 + li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */ + b boot_cold + + . = EXC_OFF_SYS_RESET + 0x10 + + .globl _start_warm +_start_warm: + li r21, BOOTFLAG_WARM /* Software reboot */ + b boot_warm + +boot_cold: +boot_warm: + + /* Initialize machine status; enable machine check interrupt */ + /*----------------------------------------------------------------------*/ + li r3, MSR_KERNEL /* Set ME, RI flags */ + mtmsr r3 + mtspr SRR1, r3 /* Make SRR1 match MSR */ + + mfspr r3, ICR /* clear Interrupt Cause Register */ + + /* Initialize debug port registers */ + /*----------------------------------------------------------------------*/ + xor r0, r0, r0 /* Clear R0 */ + mtspr LCTRL1, r0 /* Initialize debug port regs */ + mtspr LCTRL2, r0 + mtspr COUNTA, r0 + mtspr COUNTB, r0 + + /* Reset the caches */ + /*----------------------------------------------------------------------*/ + + mfspr r3, IC_CST /* Clear error bits */ + mfspr r3, DC_CST + + lis r3, IDC_UNALL@h /* Unlock all */ + mtspr IC_CST, r3 + mtspr DC_CST, r3 + + lis r3, IDC_INVALL@h /* Invalidate all */ + mtspr IC_CST, r3 + mtspr DC_CST, r3 + + lis r3, IDC_DISABLE@h /* Disable data cache */ + mtspr DC_CST, r3 + +#if !defined(CONFIG_SYS_DELAYED_ICACHE) + /* On IP860 and PCU E, + * we cannot enable IC yet + */ + lis r3, IDC_ENABLE@h /* Enable instruction cache */ +#endif + mtspr IC_CST, r3 + + /* invalidate all tlb's */ + /*----------------------------------------------------------------------*/ + + tlbia + isync + + /* + * Calculate absolute address in FLASH and jump there + *----------------------------------------------------------------------*/ + + lis r3, CONFIG_SYS_MONITOR_BASE@h + ori r3, r3, CONFIG_SYS_MONITOR_BASE@l + addi r3, r3, in_flash - _start + EXC_OFF_SYS_RESET + mtlr r3 + blr + +in_flash: + + /* initialize some SPRs that are hard to access from C */ + /*----------------------------------------------------------------------*/ + + lis r3, CONFIG_SYS_IMMR@h /* pass IMMR as arg1 to C routine */ + ori r1, r3, CONFIG_SYS_INIT_SP_OFFSET /* set up the stack in internal DPRAM */ + /* Note: R0 is still 0 here */ + stwu r0, -4(r1) /* clear final stack frame so that */ + stwu r0, -4(r1) /* stack backtraces terminate cleanly */ + + /* + * Disable serialized ifetch and show cycles + * (i.e. set processor to normal mode). + * This is also a silicon bug workaround, see errata + */ + + li r2, 0x0007 + mtspr ICTRL, r2 + + /* Set up debug mode entry */ + + lis r2, CONFIG_SYS_DER@h + ori r2, r2, CONFIG_SYS_DER@l + mtspr DER, r2 + + /* let the C-code set up the rest */ + /* */ + /* Be careful to keep code relocatable ! */ + /*----------------------------------------------------------------------*/ + + GET_GOT /* initialize GOT access */ + + /* r3: IMMR */ + bl cpu_init_f /* run low-level CPU init code (from Flash) */ + + mr r3, r21 + /* r3: BOOTFLAG */ + bl board_init_f /* run 1st part of board init code (from Flash) */ + + + .globl _start_of_vectors +_start_of_vectors: + +/* Machine check */ + STD_EXCEPTION(0x200, MachineCheck, MachineCheckException) + +/* Data Storage exception. "Never" generated on the 860. */ + STD_EXCEPTION(0x300, DataStorage, UnknownException) + +/* Instruction Storage exception. "Never" generated on the 860. */ + STD_EXCEPTION(0x400, InstStorage, UnknownException) + +/* External Interrupt exception. */ + STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) + +/* Alignment exception. */ + . = 0x600 +Alignment: + EXCEPTION_PROLOG(SRR0, SRR1) + mfspr r4,DAR + stw r4,_DAR(r21) + mfspr r5,DSISR + stw r5,_DSISR(r21) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) + +/* Program check exception */ + . = 0x700 +ProgramCheck: + EXCEPTION_PROLOG(SRR0, SRR1) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, + MSR_KERNEL, COPY_EE) + + /* No FPU on MPC8xx. This exception is not supposed to happen. + */ + STD_EXCEPTION(0x800, FPUnavailable, UnknownException) + + /* I guess we could implement decrementer, and may have + * to someday for timekeeping. + */ + STD_EXCEPTION(0x900, Decrementer, timer_interrupt) + STD_EXCEPTION(0xa00, Trap_0a, UnknownException) + STD_EXCEPTION(0xb00, Trap_0b, UnknownException) + STD_EXCEPTION(0xc00, SystemCall, UnknownException) + STD_EXCEPTION(0xd00, SingleStep, UnknownException) + + STD_EXCEPTION(0xe00, Trap_0e, UnknownException) + STD_EXCEPTION(0xf00, Trap_0f, UnknownException) + + /* On the MPC8xx, this is a software emulation interrupt. It occurs + * for all unimplemented and illegal instructions. + */ + STD_EXCEPTION(0x1000, SoftEmu, SoftEmuException) + + STD_EXCEPTION(0x1100, InstructionTLBMiss, UnknownException) + STD_EXCEPTION(0x1200, DataTLBMiss, UnknownException) + STD_EXCEPTION(0x1300, InstructionTLBError, UnknownException) + STD_EXCEPTION(0x1400, DataTLBError, UnknownException) + + STD_EXCEPTION(0x1500, Reserved5, UnknownException) + STD_EXCEPTION(0x1600, Reserved6, UnknownException) + STD_EXCEPTION(0x1700, Reserved7, UnknownException) + STD_EXCEPTION(0x1800, Reserved8, UnknownException) + STD_EXCEPTION(0x1900, Reserved9, UnknownException) + STD_EXCEPTION(0x1a00, ReservedA, UnknownException) + STD_EXCEPTION(0x1b00, ReservedB, UnknownException) + + STD_EXCEPTION(0x1c00, DataBreakpoint, UnknownException) + STD_EXCEPTION(0x1d00, InstructionBreakpoint, DebugException) + STD_EXCEPTION(0x1e00, PeripheralBreakpoint, UnknownException) + STD_EXCEPTION(0x1f00, DevPortBreakpoint, UnknownException) + + + .globl _end_of_vectors +_end_of_vectors: + + + . = 0x2000 + +/* + * This code finishes saving the registers to the exception frame + * and jumps to the appropriate handler for the exception. + * Register r21 is pointer into trap frame, r1 has new stack pointer. + */ + .globl transfer_to_handler +transfer_to_handler: + stw r22,_NIP(r21) + lis r22,MSR_POW@h + andc r23,r23,r22 + stw r23,_MSR(r21) + SAVE_GPR(7, r21) + SAVE_4GPRS(8, r21) + SAVE_8GPRS(12, r21) + SAVE_8GPRS(24, r21) + mflr r23 + andi. r24,r23,0x3f00 /* get vector offset */ + stw r24,TRAP(r21) + li r22,0 + stw r22,RESULT(r21) + mtspr SPRG2,r22 /* r1 is now kernel sp */ + lwz r24,0(r23) /* virtual address of handler */ + lwz r23,4(r23) /* where to go when done */ + mtspr SRR0,r24 + mtspr SRR1,r20 + mtlr r23 + SYNC + rfi /* jump to handler, enable MMU */ + +int_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SRR0,r2 + mtspr SRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfi + +/* Cache functions. +*/ + .globl icache_enable +icache_enable: + SYNC + lis r3, IDC_INVALL@h + mtspr IC_CST, r3 + lis r3, IDC_ENABLE@h + mtspr IC_CST, r3 + blr + + .globl icache_disable +icache_disable: + SYNC + lis r3, IDC_DISABLE@h + mtspr IC_CST, r3 + blr + + .globl icache_status +icache_status: + mfspr r3, IC_CST + srwi r3, r3, 31 /* >>31 => select bit 0 */ + blr + + .globl dcache_enable +dcache_enable: +#if 0 + SYNC +#endif +#if 1 + lis r3, 0x0400 /* Set cache mode with MMU off */ + mtspr MD_CTR, r3 +#endif + + lis r3, IDC_INVALL@h + mtspr DC_CST, r3 +#if 0 + lis r3, DC_SFWT@h + mtspr DC_CST, r3 +#endif + lis r3, IDC_ENABLE@h + mtspr DC_CST, r3 + blr + + .globl dcache_disable +dcache_disable: + SYNC + lis r3, IDC_DISABLE@h + mtspr DC_CST, r3 + lis r3, IDC_INVALL@h + mtspr DC_CST, r3 + blr + + .globl dcache_status +dcache_status: + mfspr r3, DC_CST + srwi r3, r3, 31 /* >>31 => select bit 0 */ + blr + + .globl dc_read +dc_read: + mtspr DC_ADR, r3 + mfspr r3, DC_DAT + blr + +/* + * unsigned int get_immr (unsigned int mask) + * + * return (mask ? (IMMR & mask) : IMMR); + */ + .globl get_immr +get_immr: + mr r4,r3 /* save mask */ + mfspr r3, IMMR /* IMMR */ + cmpwi 0,r4,0 /* mask != 0 ? */ + beq 4f + and r3,r3,r4 /* IMMR & mask */ +4: + blr + + .globl get_pvr +get_pvr: + mfspr r3, PVR + blr + + + .globl wr_ic_cst +wr_ic_cst: + mtspr IC_CST, r3 + blr + + .globl rd_ic_cst +rd_ic_cst: + mfspr r3, IC_CST + blr + + .globl wr_ic_adr +wr_ic_adr: + mtspr IC_ADR, r3 + blr + + + .globl wr_dc_cst +wr_dc_cst: + mtspr DC_CST, r3 + blr + + .globl rd_dc_cst +rd_dc_cst: + mfspr r3, DC_CST + blr + + .globl wr_dc_adr +wr_dc_adr: + mtspr DC_ADR, r3 + blr + +/*------------------------------------------------------------------------------*/ + +/* + * void relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * r3 = dest + * r4 = src + * r5 = length in bytes + * r6 = cachelinesize + */ + .globl relocate_code +relocate_code: + mr r1, r3 /* Set new stack pointer */ + mr r9, r4 /* Save copy of Global Data pointer */ + mr r10, r5 /* Save copy of Destination Address */ + + GET_GOT + mr r3, r5 /* Destination Address */ + lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ + ori r4, r4, CONFIG_SYS_MONITOR_BASE@l + lwz r5, GOT(__init_end) + sub r5, r5, r4 + li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */ + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address + * + * Offset: + */ + sub r15, r10, r4 + + /* First our own GOT */ + add r12, r12, r15 + /* then the one used by the C code */ + add r30, r30, r15 + + /* + * Now relocate code + */ + + cmplw cr1,r3,r4 + addi r0,r5,3 + srwi. r0,r0,2 + beq cr1,4f /* In place copy is not necessary */ + beq 7f /* Protect against 0 count */ + mtctr r0 + bge cr1,2f + + la r8,-4(r4) + la r7,-4(r3) +1: lwzu r0,4(r8) + stwu r0,4(r7) + bdnz 1b + b 4f + +2: slwi r0,r0,2 + add r8,r4,r0 + add r7,r3,r0 +3: lwzu r0,-4(r8) + stwu r0,-4(r7) + bdnz 3b + +/* + * Now flush the cache: note that we must start from a cache aligned + * address. Otherwise we might miss one cache line. + */ +4: cmpwi r6,0 + add r5,r3,r5 + beq 7f /* Always flush prefetch queue in any case */ + subi r0,r6,1 + andc r3,r3,r0 + mr r4,r3 +5: dcbst 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 5b + sync /* Wait for all dcbst to complete on bus */ + mr r4,r3 +6: icbi 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 6b +7: sync /* Wait for all icbi to complete on bus */ + isync + +/* + * We are done. Do not return, instead branch to second part of board + * initialization, now running from RAM. + */ + + addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET + mtlr r0 + blr + +in_ram: + + /* + * Relocation Function, r12 point to got2+0x8000 + * + * Adjust got2 pointers, no need to check for 0, this code + * already puts a few entries in the table. + */ + li r0,__got2_entries@sectoff@l + la r3,GOT(_GOT2_TABLE_) + lwz r11,GOT(_GOT2_TABLE_) + mtctr r0 + sub r11,r3,r11 + addi r3,r3,-4 +1: lwzu r0,4(r3) + cmpwi r0,0 + beq- 2f + add r0,r0,r11 + stw r0,0(r3) +2: bdnz 1b + + /* + * Now adjust the fixups and the pointers to the fixups + * in case we need to move ourselves again. + */ + li r0,__fixup_entries@sectoff@l + lwz r3,GOT(_FIXUP_TABLE_) + cmpwi r0,0 + mtctr r0 + addi r3,r3,-4 + beq 4f +3: lwzu r4,4(r3) + lwzux r0,r4,r11 + add r0,r0,r11 + stw r10,0(r3) + stw r0,0(r4) + bdnz 3b +4: +clear_bss: + /* + * Now clear BSS segment + */ + lwz r3,GOT(__bss_start) + lwz r4,GOT(_end) + + cmplw 0, r3, r4 + beq 6f + + li r0, 0 +5: + stw r0, 0(r3) + addi r3, r3, 4 + cmplw 0, r3, r4 + bne 5b +6: + + mr r3, r9 /* Global Data pointer */ + mr r4, r10 /* Destination Address */ + bl board_init_r + + /* + * Copy exception vector code to low memory + * + * r3: dest_addr + * r7: source address, r8: end address, r9: target address + */ + .globl trap_init +trap_init: + mflr r4 /* save link register */ + GET_GOT + lwz r7, GOT(_start) + lwz r8, GOT(_end_of_vectors) + + li r9, 0x100 /* reset vector always at 0x100 */ + + cmplw 0, r7, r8 + bgelr /* return if r7>=r8 - just in case */ +1: + lwz r0, 0(r7) + stw r0, 0(r9) + addi r7, r7, 4 + addi r9, r9, 4 + cmplw 0, r7, r8 + bne 1b + + /* + * relocate `hdlr' and `int_return' entries + */ + li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET + li r8, Alignment - _start + EXC_OFF_SYS_RESET +2: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 2b + + li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET + bl trap_reloc + + li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET + li r8, SystemCall - _start + EXC_OFF_SYS_RESET +3: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 3b + + li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET + li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET +4: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 4b + + mtlr r4 /* restore link register */ + blr diff --git a/arch/ppc/cpu/mpc8xx/traps.c b/arch/ppc/cpu/mpc8xx/traps.c new file mode 100644 index 0000000..6efe8e0 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/traps.c @@ -0,0 +1,241 @@ +/* + * linux/arch/ppc/kernel/traps.c + * + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * Modified by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras (paulus@cs.anu.edu.au) + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * This file handles the architecture-dependent parts of hardware exceptions + */ + +#include <common.h> +#include <command.h> +#include <kgdb.h> +#include <asm/processor.h> + +#if defined(CONFIG_CMD_BEDBUG) +extern void do_bedbug_breakpoint(struct pt_regs *); +#endif + +/* Returns 0 if exception not found and fixup otherwise. */ +extern unsigned long search_exception_table(unsigned long); + +/* THIS NEEDS CHANGING to use the board info structure. +*/ +#define END_OF_MEM 0x02000000 + +/* + * Trap & Exception support + */ + +void +print_backtrace(unsigned long *sp) +{ + int cnt = 0; + unsigned long i; + + printf("Call backtrace: "); + while (sp) { + if ((uint)sp > END_OF_MEM) + break; + + i = sp[1]; + if (cnt++ % 7 == 0) + printf("\n"); + printf("%08lX ", i); + if (cnt > 32) break; + sp = (unsigned long *)*sp; + } + printf("\n"); +} + +void show_regs(struct pt_regs * regs) +{ + int i; + + printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n", + regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); + printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n", + regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0, + regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0, + regs->msr&MSR_IR ? 1 : 0, + regs->msr&MSR_DR ? 1 : 0); + + printf("\n"); + for (i = 0; i < 32; i++) { + if ((i % 8) == 0) + { + printf("GPR%02d: ", i); + } + + printf("%08lX ", regs->gpr[i]); + if ((i % 8) == 7) + { + printf("\n"); + } + } +} + + +void +_exception(int signr, struct pt_regs *regs) +{ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Exception in kernel pc %lx signal %d",regs->nip,signr); +} + +void +MachineCheckException(struct pt_regs *regs) +{ + unsigned long fixup; + + /* Probing PCI using config cycles cause this exception + * when a device is not present. Catch it and return to + * the PCI exception handler. + */ + if ((fixup = search_exception_table(regs->nip)) != 0) { + regs->nip = fixup; + return; + } + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + printf("Machine check in kernel mode.\n"); + printf("Caused by (from msr): "); + printf("regs %p ",regs); + switch( regs->msr & 0x000F0000) { + case (0x80000000>>12): + printf("Machine check signal - probably due to mm fault\n" + "with mmu off\n"); + break; + case (0x80000000>>13): + printf("Transfer error ack signal\n"); + break; + case (0x80000000>>14): + printf("Data parity signal\n"); + break; + case (0x80000000>>15): + printf("Address parity signal\n"); + break; + default: + printf("Unknown values in msr\n"); + } + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("machine check"); +} + +void +AlignmentException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Alignment Exception"); +} + +void +ProgramCheckException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Program Check Exception"); +} + +void +SoftEmuException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Software Emulation Exception"); +} + + +void +UnknownException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", + regs->nip, regs->msr, regs->trap); + _exception(0, regs); +} + +void +DebugException(struct pt_regs *regs) +{ + printf("Debugger trap at @ %lx\n", regs->nip ); + show_regs(regs); +#if defined(CONFIG_CMD_BEDBUG) + do_bedbug_breakpoint( regs ); +#endif +} + +/* Probe an address by reading. If not present, return -1, otherwise + * return 0. + */ +int +addr_probe(uint *addr) +{ +#if 0 + int retval; + + __asm__ __volatile__( \ + "1: lwz %0,0(%1)\n" \ + " eieio\n" \ + " li %0,0\n" \ + "2:\n" \ + ".section .fixup,\"ax\"\n" \ + "3: li %0,-1\n" \ + " b 2b\n" \ + ".section __ex_table,\"a\"\n" \ + " .align 2\n" \ + " .long 1b,3b\n" \ + ".text" \ + : "=r" (retval) : "r"(addr)); + + return (retval); +#endif + return 0; +} diff --git a/arch/ppc/cpu/mpc8xx/upatch.c b/arch/ppc/cpu/mpc8xx/upatch.c new file mode 100644 index 0000000..a8cb735 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/upatch.c @@ -0,0 +1,194 @@ +#include <common.h> +#include <commproc.h> + +#if defined(CONFIG_SYS_I2C_UCODE_PATCH) || defined(CONFIG_SYS_SPI_UCODE_PATCH) || \ + defined(CONFIG_SYS_SMC_UCODE_PATCH) + +static void UcodeCopy (volatile cpm8xx_t *cpm); + +void cpm_load_patch (volatile immap_t *immr) +{ + immr->im_cpm.cp_rccr &= ~0x0003; /* Disable microcode program area */ + + UcodeCopy ((cpm8xx_t *)&immr->im_cpm); /* Copy ucode patch to DPRAM */ +#ifdef CONFIG_SYS_SPI_UCODE_PATCH + { + volatile spi_t *spi = (spi_t *) & immr->im_cpm.cp_dparam[PROFF_SPI]; + /* Activate the microcode per the instructions in the microcode manual */ + /* NOTE: We're only relocating the SPI parameters (not I2C). */ + immr->im_cpm.cp_cpmcr1 = 0x802a; /* Write Trap register 1 value */ + immr->im_cpm.cp_cpmcr2 = 0x8028; /* Write Trap register 2 value */ + spi->spi_rpbase = CONFIG_SYS_SPI_DPMEM_OFFSET; /* Where to relocte SPI params */ + } +#endif + +#ifdef CONFIG_SYS_I2C_UCODE_PATCH + { + volatile iic_t *iip = (iic_t *) & immr->im_cpm.cp_dparam[PROFF_IIC]; + /* Activate the microcode per the instructions in the microcode manual */ + /* NOTE: We're only relocating the I2C parameters (not SPI). */ + immr->im_cpm.cp_cpmcr3 = 0x802e; /* Write Trap register 3 value */ + immr->im_cpm.cp_cpmcr4 = 0x802c; /* Write Trap register 4 value */ + iip->iic_rpbase = CONFIG_SYS_I2C_DPMEM_OFFSET; /* Where to relocte I2C params */ + } +#endif + +#ifdef CONFIG_SYS_SMC_UCODE_PATCH + { + volatile smc_uart_t *up = (smc_uart_t *) & immr->im_cpm.cp_dparam[PROFF_SMC1]; + /* Activate the microcode per the instructions in the microcode manual */ + /* NOTE: We're only relocating the SMC parameters. */ + immr->im_cpm.cp_cpmcr1 = 0x8080; /* Write Trap register 1 value */ + immr->im_cpm.cp_cpmcr2 = 0x8088; /* Write Trap register 2 value */ + up->smc_rpbase = CONFIG_SYS_SMC_DPMEM_OFFSET; /* Where to relocte SMC params */ + } +#endif + + /* + * Enable DPRAM microcode to execute from the first 512 bytes + * and a 256 byte extension of DPRAM. + */ +#ifdef CONFIG_SYS_SMC_UCODE_PATCH + immr->im_cpm.cp_rccr |= 0x0002; +#else + immr->im_cpm.cp_rccr |= 0x0001; +#endif +} + +#if defined(CONFIG_SYS_I2C_UCODE_PATCH) || defined(CONFIG_SYS_SPI_UCODE_PATCh) +static ulong patch_2000[] = { + 0x7FFFEFD9, 0x3FFD0000, 0x7FFB49F7, 0x7FF90000, + 0x5FEFADF7, 0x5F88ADF7, 0x5FEFAFF7, 0x5F88AFF7, + 0x3A9CFBC8, 0x77CAE1BB, 0xF4DE7FAD, 0xABAE9330, + 0x4E08FDCF, 0x6E0FAFF8, 0x7CCF76CF, 0xFDAFF9CF, + 0xABF88DC8, 0xAB5879F7, 0xB0927383, 0xDFD079F7, + 0xB090E6BB, 0xE5BBE74F, 0xB3FA6F0F, 0x6FFB76CE, + 0xEE0CF9CF, 0x2BFBEFEF, 0xCFEEF9CF, 0x76CEAD23, + 0x90B3DF99, 0x7FDDD0C1, 0x4BF847FD, 0x7CCF76CE, + 0xCFEF77CA, 0x7EAF7FAD, 0x7DFDF0B7, 0xEF7A7FCA, + 0x77CAFBC8, 0x6079E722, 0xFBC85FFF, 0xDFFF5FB3, + 0xFFFBFBC8, 0xF3C894A5, 0xE7C9EDF9, 0x7F9A7FAD, + 0x5F36AFE8, 0x5F5BFFDF, 0xDF95CB9E, 0xAF7D5FC3, + 0xAFED8C1B, 0x5FC3AFDD, 0x5FC5DF99, 0x7EFDB0B3, + 0x5FB3FFFE, 0xABAE5FB3, 0xFFFE5FD0, 0x600BE6BB, + 0x600B5FD0, 0xDFC827FB, 0xEFDF5FCA, 0xCFDE3A9C, + 0xE7C9EDF9, 0xF3C87F9E, 0x54CA7FED, 0x2D3A3637, + 0x756F7E9A, 0xF1CE37EF, 0x2E677FEE, 0x10EBADF8, + 0xEFDECFEA, 0xE52F7D9F, 0xE12BF1CE, 0x5F647E9A, + 0x4DF8CFEA, 0x5F717D9B, 0xEFEECFEA, 0x5F73E522, + 0xEFDE5F73, 0xCFDA0B61, 0x7385DF61, 0xE7C9EDF9, + 0x7E9A30D5, 0x1458BFFF, 0xF3C85FFF, 0xDFFFA7F8, + 0x5F5BBFFE, 0x7F7D10D0, 0x144D5F33, 0xBFFFAF78, + 0x5F5BBFFD, 0xA7F85F33, 0xBFFE77FD, 0x30BD4E08, + 0xFDCFE5FF, 0x6E0FAFF8, 0x7EEF7E9F, 0xFDEFF1CF, + 0x5F17ABF8, 0x0D5B5F5B, 0xFFEF79F7, 0x309EAFDD, + 0x5F3147F8, 0x5F31AFED, 0x7FDD50AF, 0x497847FD, + 0x7F9E7FED, 0x7DFD70A9, 0xEF7E7ECE, 0x6BA07F9E, + 0x2D227EFD, 0x30DB5F5B, 0xFFFD5F5B, 0xFFEF5F5B, + 0xFFDF0C9C, 0xAFED0A9A, 0xAFDD0C37, 0x5F37AFBD, + 0x7FBDB081, 0x5F8147F8, +}; + +static ulong patch_2F00[] = { + 0x3E303430, 0x34343737, 0xABBF9B99, 0x4B4FBDBD, + 0x59949334, 0x9FFF37FB, 0x9B177DD9, 0x936956BB, + 0xFBDD697B, 0xDD2FD113, 0x1DB9F7BB, 0x36313963, + 0x79373369, 0x3193137F, 0x7331737A, 0xF7BB9B99, + 0x9BB19795, 0x77FDFD3D, 0x573B773F, 0x737933F7, + 0xB991D115, 0x31699315, 0x31531694, 0xBF4FBDBD, + 0x35931497, 0x35376956, 0xBD697B9D, 0x96931313, + 0x19797937, 0x69350000, +}; +#else + +static ulong patch_2000[] = { + 0x3fff0000, 0x3ffd0000, 0x3ffb0000, 0x3ff90000, + 0x5fefeff8, 0x5f91eff8, 0x3ff30000, 0x3ff10000, + 0x3a11e710, 0xedf0ccb9, 0xf318ed66, 0x7f0e5fe2, + 0x7fedbb38, 0x3afe7468, 0x7fedf4d8, 0x8ffbb92d, + 0xb83b77fd, 0xb0bb5eb9, 0xdfda7fed, 0x90bde74d, + 0x6f0dcbd3, 0xe7decfed, 0xcb50cfed, 0xcfeddf6d, + 0x914d4f74, 0x5eaedfcb, 0x9ee0e7df, 0xefbb6ffb, + 0xe7ef7f0e, 0x9ee57fed, 0xebb7effa, 0xeb30affb, + 0x7fea90b3, 0x7e0cf09f, 0xbffff318, 0x5fffdfff, + 0xac35efea, 0x7fce1fc1, 0xe2ff5fbd, 0xaffbe2ff, + 0x5fbfaffb, 0xf9a87d0f, 0xaef8770f, 0x7d0fb0a2, + 0xeffbbfff, 0xcfef5fba, 0x7d0fbfff, 0x5fba4cf8, + 0x7fddd09b, 0x49f847fd, 0x7efdf097, 0x7fedfffd, + 0x7dfdf093, 0xef7e7e1e, 0x5fba7f0e, 0x3a11e710, + 0xedf0cc87, 0xfb18ad0a, 0x1f85bbb8, 0x74283b7e, + 0x7375e4bb, 0x2ab64fb8, 0x5c7de4bb, 0x32fdffbf, + 0x5f0843f8, 0x7ce3e1bb, 0xe74f7ded, 0x6f0f4fe8, + 0xc7ba32be, 0x73f2efeb, 0x600b4f78, 0xe5bb760b, + 0x5388aef8, 0x4ef80b6a, 0xcfef9ee5, 0xabf8751f, + 0xefef5b88, 0x741f4fe8, 0x751e760d, 0x7fdb70dd, + 0x741cafce, 0xefcc7fce, 0x751e7088, 0x741ce7bb, + 0x334ecfed, 0xafdbefeb, 0xe5bb760b, 0x53ceaef8, + 0xafe8e7eb, 0x4bf8771e, 0x7e007fed, 0x4fcbe2cc, + 0x7fbc3085, 0x7b0f7a0f, 0x34b177fd, 0xb0e75e93, + 0xdf313e3b, 0xaf78741f, 0x741f30cc, 0xcfef5f08, + 0x741f3e88, 0xafb8771e, 0x5f437fed, 0x0bafe2cc, + 0x741ccfec, 0xe5ca53a9, 0x6fcb4f74, 0x5e89df27, + 0x2a923d14, 0x4b8fdf0c, 0x751f741c, 0x6c1eeffa, + 0xefea7fce, 0x6ffc309a, 0xefec3fca, 0x308fdf0a, + 0xadf85e7a, 0xaf7daefd, 0x5e7adf0a, 0x5e7aafdd, + 0x761f1088, 0x1e7c7efd, 0x3089fffe, 0x4908fb18, + 0x5fffdfff, 0xafbbf0f7, 0x4ef85f43, 0xadf81489, + 0x7a0f7089, 0xcfef5089, 0x7a0fdf0c, 0x5e7cafed, + 0xbc6e780f, 0xefef780f, 0xefef790f, 0xa7f85eeb, + 0xffef790f, 0xefef790f, 0x1489df0a, 0x5e7aadfd, + 0x5f09fffb, 0xe79aded9, 0xeff96079, 0x607ae79a, + 0xded8eff9, 0x60795edb, 0x607acfef, 0xefefefdf, + 0xefbfef7f, 0xeeffedff, 0xebffe7ff, 0xafefafdf, + 0xafbfaf7f, 0xaeffadff, 0xabffa7ff, 0x6fef6fdf, + 0x6fbf6f7f, 0x6eff6dff, 0x6bff67ff, 0x2fef2fdf, + 0x2fbf2f7f, 0x2eff2dff, 0x2bff27ff, 0x4e08fd1f, + 0xe5ff6e0f, 0xaff87eef, 0x7e0ffdef, 0xf11f6079, + 0xabf8f51e, 0x7e0af11c, 0x37cfae16, 0x7fec909a, + 0xadf8efdc, 0xcfeae52f, 0x7d0fe12b, 0xf11c6079, + 0x7e0a4df8, 0xcfea5ea0, 0x7d0befec, 0xcfea5ea2, + 0xe522efdc, 0x5ea2cfda, 0x4e08fd1f, 0x6e0faff8, + 0x7c1f761f, 0xfdeff91f, 0x6079abf8, 0x761cee00, + 0xf91f2bfb, 0xefefcfec, 0xf91f6079, 0x761c27fb, + 0xefdf5e83, 0xcfdc7fdd, 0x50f84bf8, 0x47fd7c1f, + 0x761ccfcf, 0x7eef7fed, 0x7dfd70ef, 0xef7e7f1e, + 0x771efb18, 0x6079e722, 0xe6bbe5bb, 0x2e66e5bb, + 0x600b2ee1, 0xe2bbe2bb, 0xe2bbe2bb, 0x2f5ee2bb, + 0xe2bb2ff9, 0x6079e2bb, +}; + +static ulong patch_2F00[] = { + 0x30303030, 0x3e3e3030, 0xaf79b9b3, 0xbaa3b979, + 0x9693369f, 0x79f79777, 0x97333fff, 0xfb3b9e9f, + 0x79b91d11, 0x9e13f3ff, 0x3f9b6bd9, 0xe173d136, + 0x695669d1, 0x697b3daf, 0x79b93a3a, 0x3f979f91, + 0x379ff976, 0xf99777fd, 0x9779737d, 0xe9d6bbf9, + 0xbfffd9df, 0x97f7fd97, 0x6f7b9bff, 0xf9bd9683, + 0x397db973, 0xd97b3b9f, 0xd7f9f733, 0x9993bb9e, + 0xe1f9ef93, 0x73773337, 0xb936917d, 0x11f87379, + 0xb979d336, 0x8b7ded73, 0x1b7d9337, 0x31f3f22f, + 0x3f2327ee, 0xeeeeeeee, 0xeeeeeeee, 0xeeeeeeee, + 0xeeeeee4b, 0xf4fbdbd2, 0x58bb1878, 0x577fdfd2, + 0xd573b773, 0xf7374b4f, 0xbdbd25b8, 0xb177d2d1, + 0x7376856b, 0xbfdd687b, 0xdd2fff8f, 0x78ffff8f, + 0xf22f0000, +}; +#endif + +static void UcodeCopy (volatile cpm8xx_t *cpm) +{ + vu_long *p; + int i; + + p = (vu_long *)&(cpm->cp_dpmem[0x0000]); + for (i=0; i < sizeof(patch_2000)/4; ++i) { + p[i] = patch_2000[i]; + } + + p = (vu_long *)&(cpm->cp_dpmem[0x0F00]); + for (i=0; i < sizeof(patch_2F00)/4; ++i) { + p[i] = patch_2F00[i]; + } +} + +#endif /* CONFIG_SYS_I2C_UCODE_PATCH, CONFIG_SYS_SPI_UCODE_PATCH */ diff --git a/arch/ppc/cpu/mpc8xx/video.c b/arch/ppc/cpu/mpc8xx/video.c new file mode 100644 index 0000000..c79c499 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/video.c @@ -0,0 +1,1331 @@ +/* + * (C) Copyright 2000 + * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it + * (C) Copyright 2002 + * Wolfgang Denk, wd@denx.de + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* #define DEBUG */ + +/************************************************************************/ +/* ** HEADER FILES */ +/************************************************************************/ + +#include <stdarg.h> +#include <common.h> +#include <config.h> +#include <version.h> +#include <timestamp.h> +#include <i2c.h> +#include <linux/types.h> +#include <stdio_dev.h> + +#ifdef CONFIG_VIDEO + +DECLARE_GLOBAL_DATA_PTR; + +/************************************************************************/ +/* ** DEBUG SETTINGS */ +/************************************************************************/ + +#if 0 +#define VIDEO_DEBUG_COLORBARS /* Force colorbars output */ +#endif + +/************************************************************************/ +/* ** VIDEO MODE SETTINGS */ +/************************************************************************/ + +#if 0 +#define VIDEO_MODE_EXTENDED /* Allow screen size bigger than visible area */ +#define VIDEO_MODE_NTSC +#endif + +#define VIDEO_MODE_PAL + +#if 0 +#define VIDEO_BLINK /* This enables cursor blinking (under construction) */ +#endif + +#define VIDEO_INFO /* Show U-Boot information */ +#define VIDEO_INFO_X VIDEO_LOGO_WIDTH+8 +#define VIDEO_INFO_Y 16 + +/************************************************************************/ +/* ** VIDEO ENCODER CONSTANTS */ +/************************************************************************/ + +#ifdef CONFIG_VIDEO_ENCODER_AD7176 + +#include <video_ad7176.h> /* Sets encoder data, mode, and visible and active area */ + +#define VIDEO_I2C 1 +#define VIDEO_I2C_ADDR CONFIG_VIDEO_ENCODER_AD7176_ADDR +#endif + +#ifdef CONFIG_VIDEO_ENCODER_AD7177 + +#include <video_ad7177.h> /* Sets encoder data, mode, and visible and active area */ + +#define VIDEO_I2C 1 +#define VIDEO_I2C_ADDR CONFIG_VIDEO_ENCODER_AD7177_ADDR +#endif + +#ifdef CONFIG_VIDEO_ENCODER_AD7179 + +#include <video_ad7179.h> /* Sets encoder data, mode, and visible and active area */ + +#define VIDEO_I2C 1 +#define VIDEO_I2C_ADDR CONFIG_VIDEO_ENCODER_AD7179_ADDR +#endif + +/************************************************************************/ +/* ** VIDEO MODE CONSTANTS */ +/************************************************************************/ + +#ifdef VIDEO_MODE_EXTENDED +#define VIDEO_COLS VIDEO_ACTIVE_COLS +#define VIDEO_ROWS VIDEO_ACTIVE_ROWS +#else +#define VIDEO_COLS VIDEO_VISIBLE_COLS +#define VIDEO_ROWS VIDEO_VISIBLE_ROWS +#endif + +#define VIDEO_PIXEL_SIZE (VIDEO_MODE_BPP/8) +#define VIDEO_SIZE (VIDEO_ROWS*VIDEO_COLS*VIDEO_PIXEL_SIZE) /* Total size of buffer */ +#define VIDEO_PIX_BLOCKS (VIDEO_SIZE >> 2) /* Number of ints */ +#define VIDEO_LINE_LEN (VIDEO_COLS*VIDEO_PIXEL_SIZE) /* Number of bytes per line */ +#define VIDEO_BURST_LEN (VIDEO_COLS/8) + +#ifdef VIDEO_MODE_YUYV +#define VIDEO_BG_COL 0x80D880D8 /* Background color in YUYV format */ +#else +#define VIDEO_BG_COL 0xF8F8F8F8 /* Background color in RGB format */ +#endif + +/************************************************************************/ +/* ** FONT AND LOGO DATA */ +/************************************************************************/ + +#include <video_font.h> /* Get font data, width and height */ + +#ifdef CONFIG_VIDEO_LOGO +#include <video_logo.h> /* Get logo data, width and height */ + +#define VIDEO_LOGO_WIDTH DEF_U_BOOT_LOGO_WIDTH +#define VIDEO_LOGO_HEIGHT DEF_U_BOOT_LOGO_HEIGHT +#define VIDEO_LOGO_ADDR &u_boot_logo +#endif + +/************************************************************************/ +/* ** VIDEO CONTROLLER CONSTANTS */ +/************************************************************************/ + +/* VCCR - VIDEO CONTROLLER CONFIGURATION REGISTER */ + +#define VIDEO_VCCR_VON 0 /* Video controller ON */ +#define VIDEO_VCCR_CSRC 1 /* Clock source */ +#define VIDEO_VCCR_PDF 13 /* Pixel display format */ +#define VIDEO_VCCR_IEN 11 /* Interrupt enable */ + +/* VSR - VIDEO STATUS REGISTER */ + +#define VIDEO_VSR_CAS 6 /* Active set */ +#define VIDEO_VSR_EOF 0 /* End of frame */ + +/* VCMR - VIDEO COMMAND REGISTER */ + +#define VIDEO_VCMR_BD 0 /* Blank display */ +#define VIDEO_VCMR_ASEL 1 /* Active set selection */ + +/* VBCB - VIDEO BACKGROUND COLOR BUFFER REGISTER */ + +#define VIDEO_BCSR4_RESET_BIT 21 /* BCSR4 - Extern video encoder reset */ +#define VIDEO_BCSR4_EXTCLK_BIT 22 /* BCSR4 - Extern clock enable */ +#define VIDEO_BCSR4_VIDLED_BIT 23 /* BCSR4 - Video led disable */ + +/************************************************************************/ +/* ** CONSOLE CONSTANTS */ +/************************************************************************/ + +#ifdef CONFIG_VIDEO_LOGO +#define CONSOLE_ROWS ((VIDEO_ROWS - VIDEO_LOGO_HEIGHT) / VIDEO_FONT_HEIGHT) +#define VIDEO_LOGO_SKIP (VIDEO_COLS - VIDEO_LOGO_WIDTH) +#else +#define CONSOLE_ROWS (VIDEO_ROWS / VIDEO_FONT_HEIGHT) +#endif + +#define CONSOLE_COLS (VIDEO_COLS / VIDEO_FONT_WIDTH) +#define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * VIDEO_LINE_LEN) +#define CONSOLE_ROW_FIRST (video_console_address) +#define CONSOLE_ROW_SECOND (video_console_address + CONSOLE_ROW_SIZE) +#define CONSOLE_ROW_LAST (video_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE) +#define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) +#define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) + +/* + * Simple color definitions + */ +#define CONSOLE_COLOR_BLACK 0 +#define CONSOLE_COLOR_RED 1 +#define CONSOLE_COLOR_GREEN 2 +#define CONSOLE_COLOR_YELLOW 3 +#define CONSOLE_COLOR_BLUE 4 +#define CONSOLE_COLOR_MAGENTA 5 +#define CONSOLE_COLOR_CYAN 6 +#define CONSOLE_COLOR_GREY 13 +#define CONSOLE_COLOR_GREY2 14 +#define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */ + +/************************************************************************/ +/* ** BITOPS MACROS */ +/************************************************************************/ + +#define HISHORT(i) ((i >> 16)&0xffff) +#define LOSHORT(i) (i & 0xffff) +#define HICHAR(s) ((i >> 8)&0xff) +#define LOCHAR(s) (i & 0xff) +#define HI(c) ((c >> 4)&0xf) +#define LO(c) (c & 0xf) +#define SWAPINT(i) (HISHORT(i) | (LOSHORT(i) << 16)) +#define SWAPSHORT(s) (HICHAR(s) | (LOCHAR(s) << 8)) +#define SWAPCHAR(c) (HI(c) | (LO(c) << 4)) +#define BITMASK(b) (1 << (b)) +#define GETBIT(v,b) (((v) & BITMASK(b)) > 0) +#define SETBIT(v,b,d) (v = (((d)>0) ? (v) | BITMASK(b): (v) & ~BITMASK(b))) + +/************************************************************************/ +/* ** STRUCTURES */ +/************************************************************************/ + +typedef struct { + unsigned char V, Y1, U, Y2; +} tYUYV; + +/* This structure is based on the Video Ram in the MPC823. */ +typedef struct VRAM { + unsigned hx:2, /* Horizontal sync */ + vx:2, /* Vertical sync */ + fx:2, /* Frame */ + bx:2, /* Blank */ + res1:6, /* Reserved */ + vds:2, /* Video Data Select */ + inter:1, /* Interrupt */ + res2:2, /* Reserved */ + lcyc:11, /* Loop/video cycles */ + lp:1, /* Loop start/end */ + lst:1; /* Last entry */ +} VRAM; + +/************************************************************************/ +/* ** VARIABLES */ +/************************************************************************/ + +static int + video_panning_range_x = 0, /* Video mode invisible pixels x range */ + video_panning_range_y = 0, /* Video mode invisible pixels y range */ + video_panning_value_x = 0, /* Video mode x panning value (absolute) */ + video_panning_value_y = 0, /* Video mode y panning value (absolute) */ + video_panning_factor_x = 0, /* Video mode x panning value (-127 +127) */ + video_panning_factor_y = 0, /* Video mode y panning value (-127 +127) */ + console_col = 0, /* Cursor col */ + console_row = 0, /* Cursor row */ + video_palette[16]; /* Our palette */ + +static const int video_font_draw_table[] = + { 0x00000000, 0x0000ffff, 0xffff0000, 0xffffffff }; + +static char + video_color_fg = 0, /* Current fg color index (0-15) */ + video_color_bg = 0, /* Current bg color index (0-15) */ + video_enable = 0; /* Video has been initialized? */ + +static void + *video_fb_address, /* Frame buffer address */ + *video_console_address; /* Console frame buffer start address */ + +/************************************************************************/ +/* ** MEMORY FUNCTIONS (32bit) */ +/************************************************************************/ + +static void memsetl (int *p, int c, int v) +{ + while (c--) + *(p++) = v; +} + +static void memcpyl (int *d, int *s, int c) +{ + while (c--) + *(d++) = *(s++); +} + +/************************************************************************/ +/* ** VIDEO DRAWING AND COLOR FUNCTIONS */ +/************************************************************************/ + +static int video_maprgb (int r, int g, int b) +{ +#ifdef VIDEO_MODE_YUYV + unsigned int pR, pG, pB; + tYUYV YUYV; + unsigned int *ret = (unsigned int *) &YUYV; + + /* Transform (0-255) components to (0-100) */ + + pR = r * 100 / 255; + pG = g * 100 / 255; + pB = b * 100 / 255; + + /* Calculate YUV values (0-255) from RGB beetween 0-100 */ + + YUYV.Y1 = YUYV.Y2 = 209 * (pR + pG + pB) / 300 + 16; + YUYV.U = pR - (pG * 3 / 4) - (pB / 4) + 128; + YUYV.V = pB - (pR / 4) - (pG * 3 / 4) + 128; + return *ret; +#endif +#ifdef VIDEO_MODE_RGB + return ((r >> 3) << 11) | ((g > 2) << 6) | (b >> 3); +#endif +} + +static void video_setpalette (int color, int r, int g, int b) +{ + color &= 0xf; + + video_palette[color] = video_maprgb (r, g, b); + + /* Swap values if our panning offset is odd */ + if (video_panning_value_x & 1) + video_palette[color] = SWAPINT (video_palette[color]); +} + +static void video_fill (int color) +{ + memsetl (video_fb_address, VIDEO_PIX_BLOCKS, color); +} + +static void video_setfgcolor (int i) +{ + video_color_fg = i & 0xf; +} + +static void video_setbgcolor (int i) +{ + video_color_bg = i & 0xf; +} + +static int video_pickcolor (int i) +{ + return video_palette[i & 0xf]; +} + +/* Absolute console plotting functions */ + +#ifdef VIDEO_BLINK +static void video_revchar (int xx, int yy) +{ + int rows; + u8 *dest; + + dest = video_fb_address + yy * VIDEO_LINE_LEN + xx * 2; + + for (rows = VIDEO_FONT_HEIGHT; rows--; dest += VIDEO_LINE_LEN) { + switch (VIDEO_FONT_WIDTH) { + case 16: + ((u32 *) dest)[6] ^= 0xffffffff; + ((u32 *) dest)[7] ^= 0xffffffff; + /* FALL THROUGH */ + case 12: + ((u32 *) dest)[4] ^= 0xffffffff; + ((u32 *) dest)[5] ^= 0xffffffff; + /* FALL THROUGH */ + case 8: + ((u32 *) dest)[2] ^= 0xffffffff; + ((u32 *) dest)[3] ^= 0xffffffff; + /* FALL THROUGH */ + case 4: + ((u32 *) dest)[0] ^= 0xffffffff; + ((u32 *) dest)[1] ^= 0xffffffff; + } + } +} +#endif + +static void video_drawchars (int xx, int yy, unsigned char *s, int count) +{ + u8 *cdat, *dest, *dest0; + int rows, offset, c; + u32 eorx, fgx, bgx; + + offset = yy * VIDEO_LINE_LEN + xx * 2; + dest0 = video_fb_address + offset; + + fgx = video_pickcolor (video_color_fg); + bgx = video_pickcolor (video_color_bg); + + if (xx & 1) { + fgx = SWAPINT (fgx); + bgx = SWAPINT (bgx); + } + + eorx = fgx ^ bgx; + + switch (VIDEO_FONT_WIDTH) { + case 4: + case 8: + while (count--) { + c = *s; + cdat = video_fontdata + c * VIDEO_FONT_HEIGHT; + for (rows = VIDEO_FONT_HEIGHT, dest = dest0; + rows--; + dest += VIDEO_LINE_LEN) { + u8 bits = *cdat++; + + ((u32 *) dest)[0] = + (video_font_draw_table[bits >> 6] & eorx) ^ bgx; + ((u32 *) dest)[1] = + (video_font_draw_table[bits >> 4 & 3] & eorx) ^ bgx; + if (VIDEO_FONT_WIDTH == 8) { + ((u32 *) dest)[2] = + (video_font_draw_table[bits >> 2 & 3] & eorx) ^ bgx; + ((u32 *) dest)[3] = + (video_font_draw_table[bits & 3] & eorx) ^ bgx; + } + } + dest0 += VIDEO_FONT_WIDTH * 2; + s++; + } + break; + case 12: + case 16: + while (count--) { + cdat = video_fontdata + (*s) * (VIDEO_FONT_HEIGHT << 1); + for (rows = VIDEO_FONT_HEIGHT, dest = dest0; rows--; + dest += VIDEO_LINE_LEN) { + u8 bits = *cdat++; + + ((u32 *) dest)[0] = + (video_font_draw_table[bits >> 6] & eorx) ^ bgx; + ((u32 *) dest)[1] = + (video_font_draw_table[bits >> 4 & 3] & eorx) ^ bgx; + ((u32 *) dest)[2] = + (video_font_draw_table[bits >> 2 & 3] & eorx) ^ bgx; + ((u32 *) dest)[3] = + (video_font_draw_table[bits & 3] & eorx) ^ bgx; + bits = *cdat++; + ((u32 *) dest)[4] = + (video_font_draw_table[bits >> 6] & eorx) ^ bgx; + ((u32 *) dest)[5] = + (video_font_draw_table[bits >> 4 & 3] & eorx) ^ bgx; + if (VIDEO_FONT_WIDTH == 16) { + ((u32 *) dest)[6] = + (video_font_draw_table[bits >> 2 & 3] & eorx) ^ bgx; + ((u32 *) dest)[7] = + (video_font_draw_table[bits & 3] & eorx) ^ bgx; + } + } + s++; + dest0 += VIDEO_FONT_WIDTH * 2; + } + break; + } +} + +static inline void video_drawstring (int xx, int yy, char *s) +{ + video_drawchars (xx, yy, (unsigned char *)s, strlen (s)); +} + +/* Relative to console plotting functions */ + +static void video_putchars (int xx, int yy, unsigned char *s, int count) +{ +#ifdef CONFIG_VIDEO_LOGO + video_drawchars (xx, yy + VIDEO_LOGO_HEIGHT, s, count); +#else + video_drawchars (xx, yy, s, count); +#endif +} + +static void video_putchar (int xx, int yy, unsigned char c) +{ +#ifdef CONFIG_VIDEO_LOGO + video_drawchars (xx, yy + VIDEO_LOGO_HEIGHT, &c, 1); +#else + video_drawchars (xx, yy, &c, 1); +#endif +} + +static inline void video_putstring (int xx, int yy, unsigned char *s) +{ + video_putchars (xx, yy, (unsigned char *)s, strlen ((char *)s)); +} + +/************************************************************************/ +/* ** VIDEO CONTROLLER LOW-LEVEL FUNCTIONS */ +/************************************************************************/ + +#if !defined(CONFIG_RRVISION) +static void video_mode_dupefield (VRAM * source, VRAM * dest, int entries) +{ + int i; + + for (i = 0; i < entries; i++) { + dest[i] = source[i]; /* Copy the entire record */ + dest[i].fx = (!dest[i].fx) * 3; /* Negate field bit */ + } + + dest[0].lcyc++; /* Add a cycle to the first entry */ + dest[entries - 1].lst = 1; /* Set end of ram entries */ +} +#endif + +static void inline video_mode_addentry (VRAM * vr, + int Hx, int Vx, int Fx, int Bx, + int VDS, int INT, int LCYC, int LP, int LST) +{ + vr->hx = Hx; + vr->vx = Vx; + vr->fx = Fx; + vr->bx = Bx; + vr->vds = VDS; + vr->inter = INT; + vr->lcyc = LCYC; + vr->lp = LP; + vr->lst = LST; +} + +#define ADDENTRY(a,b,c,d,e,f,g,h,i) video_mode_addentry(&vr[entry++],a,b,c,d,e,f,g,h,i) + +static int video_mode_generate (void) +{ + immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + VRAM *vr = (VRAM *) (((void *) immap) + 0xb00); /* Pointer to the VRAM table */ + int DX, X1, X2, DY, Y1, Y2, entry = 0, fifo; + + /* CHECKING PARAMETERS */ + + if (video_panning_factor_y < -128) + video_panning_factor_y = -128; + + if (video_panning_factor_y > 128) + video_panning_factor_y = 128; + + if (video_panning_factor_x < -128) + video_panning_factor_x = -128; + + if (video_panning_factor_x > 128) + video_panning_factor_x = 128; + + /* Setting panning */ + + DX = video_panning_range_x = (VIDEO_ACTIVE_COLS - VIDEO_COLS) * 2; + DY = video_panning_range_y = (VIDEO_ACTIVE_ROWS - VIDEO_ROWS) / 2; + + video_panning_value_x = (video_panning_factor_x + 128) * DX / 256; + video_panning_value_y = (video_panning_factor_y + 128) * DY / 256; + + /* We assume these are burst units (multiplied by 2, we need it pari) */ + X1 = video_panning_value_x & 0xfffe; + X2 = DX - X1; + + /* We assume these are field line units (divided by 2, we need it pari) */ + Y1 = video_panning_value_y & 0xfffe; + Y2 = DY - Y1; + + debug("X1=%d, X2=%d, Y1=%d, Y2=%d, DX=%d, DY=%d VIDEO_COLS=%d \n", + X1, X2, Y1, Y2, DX, DY, VIDEO_COLS); + +#ifdef VIDEO_MODE_NTSC +/* + * Hx Vx Fx Bx VDS INT LCYC LP LST + * + * Retrace blanking + */ + ADDENTRY (0, 0, 3, 0, 1, 0, 3, 1, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 243, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 32, 1, 0); +/* + * Vertical blanking + */ + ADDENTRY (0, 0, 0, 0, 1, 0, 18, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 243, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 32, 1, 0); +/* + * Odd field active area (TOP) + */ + if (Y1 > 0) { + ADDENTRY (0, 0, 0, 0, 1, 0, Y1, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 235, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, 1448, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 32, 1, 0); + } +/* + * Odd field active area + */ + ADDENTRY (0, 0, 0, 0, 1, 0, 240 - DY, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 235, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, 8 + X1, 0, 0); + ADDENTRY (3, 0, 0, 3, 0, 0, VIDEO_COLS * 2, 0, 0); + + if (X2 > 0) + ADDENTRY (3, 0, 0, 3, 1, 0, X2, 0, 0); + + ADDENTRY (3, 0, 0, 0, 1, 0, 32, 1, 0); + +/* + * Odd field active area (BOTTOM) + */ + if (Y1 > 0) { + ADDENTRY (0, 0, 0, 0, 1, 0, Y2, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 235, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, 1448, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 32, 1, 0); + } +/* + * Vertical blanking + */ + ADDENTRY (0, 0, 0, 0, 1, 0, 4, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 243, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 32, 1, 0); +/* + * Vertical blanking + */ + ADDENTRY (0, 0, 3, 0, 1, 0, 19, 1, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 243, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 32, 1, 0); +/* + * Even field active area (TOP) + */ + if (Y1 > 0) { + ADDENTRY (0, 0, 3, 0, 1, 0, Y1, 1, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 235, 0, 0); + ADDENTRY (3, 0, 3, 3, 1, 0, 1448, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 32, 1, 0); + } +/* + * Even field active area (CENTER) + */ + ADDENTRY (0, 0, 3, 0, 1, 0, 240 - DY, 1, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 235, 0, 0); + ADDENTRY (3, 0, 3, 3, 1, 0, 8 + X1, 0, 0); + ADDENTRY (3, 0, 3, 3, 0, 0, VIDEO_COLS * 2, 0, 0); + + if (X2 > 0) + ADDENTRY (3, 0, 3, 3, 1, 0, X2, 0, 0); + + ADDENTRY (3, 0, 3, 0, 1, 0, 32, 1, 0); +/* + * Even field active area (BOTTOM) + */ + if (Y1 > 0) { + ADDENTRY (0, 0, 3, 0, 1, 0, Y2, 1, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 235, 0, 0); + ADDENTRY (3, 0, 3, 3, 1, 0, 1448, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 32, 1, 0); + } +/* + * Vertical blanking + */ + ADDENTRY (0, 0, 3, 0, 1, 0, 1, 1, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 243, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 3, 0, 1, 1, 32, 1, 1); +#endif + +#ifdef VIDEO_MODE_PAL + +#if defined(CONFIG_RRVISION) + +#define HPW 160 /* horizontal pulse width (was 139) */ +#define VPW 2 /* vertical pulse width */ +#define HBP 104 /* horizontal back porch (was 112) */ +#define VBP 19 /* vertical back porch (was 19) */ +#define VID_R 240 /* number of rows */ + + debug ("[VIDEO CTRL] Starting to add controller entries..."); +/* + * Even field + */ + ADDENTRY (0, 3, 0, 3, 1, 0, 2, 0, 0); + ADDENTRY (0, 0, 0, 3, 1, 0, HPW, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, HBP + (VIDEO_COLS * 2) + 72, 0, 0); + + ADDENTRY (0, 0, 0, 3, 1, 0, VPW, 1, 0); + ADDENTRY (0, 0, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, HBP + (VIDEO_COLS * 2) + 72, 1, 0); + + ADDENTRY (0, 3, 0, 3, 1, 0, VBP, 1, 0); + ADDENTRY (0, 3, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, HBP + (VIDEO_COLS * 2) + 72, 1, 0); +/* + * Active area + */ + ADDENTRY (0, 3, 0, 3, 1, 0, VID_R , 1, 0); + ADDENTRY (0, 3, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, HBP, 0, 0); + ADDENTRY (3, 3, 0, 3, 0, 0, VIDEO_COLS*2, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, 72, 1, 1); + + ADDENTRY (0, 3, 0, 3, 1, 0, 51, 1, 0); + ADDENTRY (0, 3, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, HBP +(VIDEO_COLS * 2) + 72 , 1, 0); +/* + * Odd field + */ + ADDENTRY (0, 3, 0, 3, 1, 0, 2, 0, 0); + ADDENTRY (0, 0, 0, 3, 1, 0, HPW, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, HBP + (VIDEO_COLS * 2) + 72, 0, 0); + + ADDENTRY (0, 0, 0, 3, 1, 0, VPW+1, 1, 0); + ADDENTRY (0, 0, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, HBP + (VIDEO_COLS * 2) + 72, 1, 0); + + ADDENTRY (0, 3, 0, 3, 1, 0, VBP, 1, 0); + ADDENTRY (0, 3, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, HBP + (VIDEO_COLS * 2) + 72, 1, 0); +/* + * Active area + */ + ADDENTRY (0, 3, 0, 3, 1, 0, VID_R , 1, 0); + ADDENTRY (0, 3, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, HBP, 0, 0); + ADDENTRY (3, 3, 0, 3, 0, 0, VIDEO_COLS*2, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, 72, 1, 1); + + ADDENTRY (0, 3, 0, 3, 1, 0, 51, 1, 0); + ADDENTRY (0, 3, 0, 3, 1, 0, HPW-1, 0, 0); + ADDENTRY (3, 3, 0, 3, 1, 0, HBP +(VIDEO_COLS * 2) + 72 , 1, 0); + + debug ("done\n"); + +#else /* !CONFIG_RRVISION */ + +/* + * Hx Vx Fx Bx VDS INT LCYC LP LST + * + * vertical; blanking + */ + ADDENTRY (0, 0, 0, 0, 1, 0, 22, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 263, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 24, 1, 0); +/* + * active area (TOP) + */ + if (Y1 > 0) { + ADDENTRY (0, 0, 0, 0, 1, 0, Y1, 1, 0); /* 11? */ + ADDENTRY (3, 0, 0, 0, 1, 0, 255, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, 1448, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 24, 1, 0); + } +/* + * field active area (CENTER) + */ + ADDENTRY (0, 0, 0, 0, 1, 0, 288 - DY, 1, 0); /* 265? */ + ADDENTRY (3, 0, 0, 0, 1, 0, 255, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, 8 + X1, 0, 0); + ADDENTRY (3, 0, 0, 3, 0, 0, VIDEO_COLS * 2, 0, 0); + + if (X2 > 0) + ADDENTRY (3, 0, 0, 1, 1, 0, X2, 0, 0); + + ADDENTRY (3, 0, 0, 0, 1, 0, 24, 1, 0); +/* + * field active area (BOTTOM) + */ + if (Y2 > 0) { + ADDENTRY (0, 0, 0, 0, 1, 0, Y2, 1, 0); /* 12? */ + ADDENTRY (3, 0, 0, 0, 1, 0, 255, 0, 0); + ADDENTRY (3, 0, 0, 3, 1, 0, 1448, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 24, 1, 0); + } +/* + * field vertical; blanking + */ + ADDENTRY (0, 0, 0, 0, 1, 0, 2, 1, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 263, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 1440, 0, 0); + ADDENTRY (3, 0, 0, 0, 1, 0, 24, 1, 0); +/* + * Create the other field (like this, but whit other field selected, + * one more cycle loop and a last identifier) + */ + video_mode_dupefield (vr, &vr[entry], entry); +#endif /* CONFIG_RRVISION */ + +#endif /* VIDEO_MODE_PAL */ + + /* See what FIFO are we using */ + fifo = GETBIT (immap->im_vid.vid_vsr, VIDEO_VSR_CAS); + + /* Set number of lines and burst (only one frame for now) */ + if (fifo) { + immap->im_vid.vid_vfcr0 = VIDEO_BURST_LEN | + (VIDEO_BURST_LEN << 8) | ((VIDEO_ROWS / 2) << 19); + } else { + immap->im_vid.vid_vfcr1 = VIDEO_BURST_LEN | + (VIDEO_BURST_LEN << 8) | ((VIDEO_ROWS / 2) << 19); + } + + SETBIT (immap->im_vid.vid_vcmr, VIDEO_VCMR_ASEL, !fifo); + +/* + * Wait until changes are applied (not done) + * while (GETBIT(immap->im_vid.vid_vsr, VIDEO_VSR_CAS) == fifo) ; + */ + + /* Return number of VRAM entries */ + return entry * 2; +} + +static void video_encoder_init (void) +{ +#ifdef VIDEO_I2C + int rc; + + /* Initialize the I2C */ + debug ("[VIDEO ENCODER] Initializing I2C bus...\n"); + i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + +#ifdef CONFIG_FADS + /* Reset ADV7176 chip */ + debug ("[VIDEO ENCODER] Resetting encoder...\n"); + (*(int *) BCSR4) &= ~(1 << 21); + + /* Wait for 5 ms inside the reset */ + debug ("[VIDEO ENCODER] Waiting for encoder reset...\n"); + udelay (5000); + + /* Take ADV7176 out of reset */ + (*(int *) BCSR4) |= 1 << 21; + + /* Wait for 5 ms after the reset */ + udelay (5000); +#endif /* CONFIG_FADS */ + + /* Send configuration */ +#ifdef DEBUG + { + int i; + + puts ("[VIDEO ENCODER] Configuring the encoder...\n"); + + printf ("Sending %zu bytes (@ %08lX) to I2C 0x%lX:\n ", + sizeof(video_encoder_data), + (ulong)video_encoder_data, + (ulong)VIDEO_I2C_ADDR); + for (i=0; i<sizeof(video_encoder_data); ++i) { + printf(" %02X", video_encoder_data[i]); + } + putc ('\n'); + } +#endif /* DEBUG */ + + if ((rc = i2c_write (VIDEO_I2C_ADDR, 0, 1, + video_encoder_data, + sizeof(video_encoder_data))) != 0) { + printf ("i2c_send error: rc=%d\n", rc); + return; + } +#endif /* VIDEO_I2C */ + return; +} + +static void video_ctrl_init (void *memptr) +{ + immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + + video_fb_address = memptr; + + /* Set background */ + debug ("[VIDEO CTRL] Setting background color...\n"); + immap->im_vid.vid_vbcb = VIDEO_BG_COL; + + /* Show the background */ + debug ("[VIDEO CTRL] Forcing background...\n"); + SETBIT (immap->im_vid.vid_vcmr, VIDEO_VCMR_BD, 1); + + /* Turn off video controller */ + debug ("[VIDEO CTRL] Turning off video controller...\n"); + SETBIT (immap->im_vid.vid_vccr, VIDEO_VCCR_VON, 0); + +#ifdef CONFIG_FADS + /* Turn on Video Port LED */ + debug ("[VIDEO CTRL] Turning off video port led...\n"); + SETBIT (*(int *) BCSR4, VIDEO_BCSR4_VIDLED_BIT, 1); + + /* Disable internal clock */ + debug ("[VIDEO CTRL] Disabling internal clock...\n"); + SETBIT (*(int *) BCSR4, VIDEO_BCSR4_EXTCLK_BIT, 0); +#endif + + /* Generate and make active a new video mode */ + debug ("[VIDEO CTRL] Generating video mode...\n"); + video_mode_generate (); + + /* Start of frame buffer (even and odd frame, to make it working with */ + /* any selected active set) */ + debug ("[VIDEO CTRL] Setting frame buffer address...\n"); + immap->im_vid.vid_vfaa1 = + immap->im_vid.vid_vfaa0 = (u32) video_fb_address; + immap->im_vid.vid_vfba1 = + immap->im_vid.vid_vfba0 = + (u32) video_fb_address + VIDEO_LINE_LEN; + + /* YUV, Big endian, SHIFT/CLK/CLK input (BEFORE ENABLING 27MHZ EXT CLOCK) */ + debug ("[VIDEO CTRL] Setting pixel mode and clocks...\n"); + immap->im_vid.vid_vccr = 0x2042; + + /* Configure port pins */ + debug ("[VIDEO CTRL] Configuring input/output pins...\n"); + immap->im_ioport.iop_pdpar = 0x1fff; + immap->im_ioport.iop_pddir = 0x0000; + +#ifdef CONFIG_FADS + /* Turn on Video Port Clock - ONLY AFTER SET VCCR TO ENABLE EXTERNAL CLOCK */ + debug ("[VIDEO CTRL] Turning on video clock...\n"); + SETBIT (*(int *) BCSR4, VIDEO_BCSR4_EXTCLK_BIT, 1); + + /* Turn on Video Port LED */ + debug ("[VIDEO CTRL] Turning on video port led...\n"); + SETBIT (*(int *) BCSR4, VIDEO_BCSR4_VIDLED_BIT, 0); +#endif +#ifdef CONFIG_RRVISION + debug ("PC5->Output(1): enable PAL clock"); + immap->im_ioport.iop_pcpar &= ~(0x0400); + immap->im_ioport.iop_pcdir |= 0x0400 ; + immap->im_ioport.iop_pcdat |= 0x0400 ; + debug ("PDPAR=0x%04X PDDIR=0x%04X PDDAT=0x%04X\n", + immap->im_ioport.iop_pdpar, + immap->im_ioport.iop_pddir, + immap->im_ioport.iop_pddat); + debug ("PCPAR=0x%04X PCDIR=0x%04X PCDAT=0x%04X\n", + immap->im_ioport.iop_pcpar, + immap->im_ioport.iop_pcdir, + immap->im_ioport.iop_pcdat); +#endif /* CONFIG_RRVISION */ + + /* Blanking the screen. */ + debug ("[VIDEO CTRL] Blanking the screen...\n"); + video_fill (VIDEO_BG_COL); + + /* + * Turns on Aggressive Mode. Normally, turning on the caches + * will cause the screen to flicker when the caches try to + * fill. This gives the FIFO's for the Video Controller + * higher priority and prevents flickering because of + * underrun. This may still be an issue when using FLASH, + * since accessing data from Flash is so slow. + */ + debug ("[VIDEO CTRL] Turning on aggressive mode...\n"); + immap->im_siu_conf.sc_sdcr = 0x40; + + /* Turn on video controller */ + debug ("[VIDEO CTRL] Turning on video controller...\n"); + SETBIT (immap->im_vid.vid_vccr, VIDEO_VCCR_VON, 1); + + /* Show the display */ + debug ("[VIDEO CTRL] Enabling the video...\n"); + SETBIT (immap->im_vid.vid_vcmr, VIDEO_VCMR_BD, 0); +} + +/************************************************************************/ +/* ** CONSOLE FUNCTIONS */ +/************************************************************************/ + +static void console_scrollup (void) +{ + /* Copy up rows ignoring the first one */ + memcpyl (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE >> 2); + + /* Clear the last one */ + memsetl (CONSOLE_ROW_LAST, CONSOLE_ROW_SIZE >> 2, VIDEO_BG_COL); +} + +static inline void console_back (void) +{ + console_col--; + + if (console_col < 0) { + console_col = CONSOLE_COLS - 1; + console_row--; + if (console_row < 0) + console_row = 0; + } + + video_putchar ( console_col * VIDEO_FONT_WIDTH, + console_row * VIDEO_FONT_HEIGHT, ' '); +} + +static inline void console_newline (void) +{ + console_row++; + console_col = 0; + + /* Check if we need to scroll the terminal */ + if (console_row >= CONSOLE_ROWS) { + /* Scroll everything up */ + console_scrollup (); + + /* Decrement row number */ + console_row--; + } +} + +void video_putc (const char c) +{ + if (!video_enable) { + serial_putc (c); + return; + } + + switch (c) { + case 13: /* Simply ignore this */ + break; + + case '\n': /* Next line, please */ + console_newline (); + break; + + case 9: /* Tab (8 chars alignment) */ + console_col |= 0x0008; /* Next 8 chars boundary */ + console_col &= ~0x0007; /* Set this bit to zero */ + + if (console_col >= CONSOLE_COLS) + console_newline (); + break; + + case 8: /* Eat last character */ + console_back (); + break; + + default: /* Add to the console */ + video_putchar ( console_col * VIDEO_FONT_WIDTH, + console_row * VIDEO_FONT_HEIGHT, c); + console_col++; + /* Check if we need to go to next row */ + if (console_col >= CONSOLE_COLS) + console_newline (); + } +} + +void video_puts (const char *s) +{ + int count = strlen (s); + + if (!video_enable) + while (count--) + serial_putc (*s++); + else + while (count--) + video_putc (*s++); +} + +/************************************************************************/ +/* ** CURSOR BLINKING FUNCTIONS */ +/************************************************************************/ + +#ifdef VIDEO_BLINK + +#define BLINK_TIMER_ID 0 +#define BLINK_TIMER_HZ 2 + +static unsigned char blink_enabled = 0; +static timer_t blink_timer; + +static void blink_update (void) +{ + static int blink_row = -1, blink_col = -1, blink_old = 0; + + /* Check if we have a new position to invert */ + if ((console_row != blink_row) || (console_col != blink_col)) { + /* Check if we need to reverse last character */ + if (blink_old) + video_revchar ( blink_col * VIDEO_FONT_WIDTH, + (blink_row +#ifdef CONFIG_VIDEO_LOGO + + VIDEO_LOGO_HEIGHT +#endif + ) * VIDEO_FONT_HEIGHT); + + /* Update values */ + blink_row = console_row; + blink_col = console_col; + blink_old = 0; + } + +/* Reverse this character */ + blink_old = !blink_old; + video_revchar ( console_col * VIDEO_FONT_WIDTH, + (console_row +#ifdef CONFIG_VIDEO_LOGO + + VIDEO_LOGO_HEIGHT +#endif + ) * VIDEO_FONT_HEIGHT); + +} + +/* + * Handler for blinking cursor + */ +static void blink_handler (void *arg) +{ +/* Blink */ + blink_update (); +/* Ack the timer */ + timer_ack (&blink_timer); +} + +int blink_set (int blink) +{ + int ret = blink_enabled; + + if (blink) + timer_enable (&blink_timer); + else + timer_disable (&blink_timer); + + blink_enabled = blink; + + return ret; +} + +static inline void blink_close (void) +{ + timer_close (&blink_timer); +} + +static inline void blink_init (void) +{ + timer_init (&blink_timer, + BLINK_TIMER_ID, BLINK_TIMER_HZ, + blink_handler); +} +#endif + +/************************************************************************/ +/* ** LOGO PLOTTING FUNCTIONS */ +/************************************************************************/ + +#ifdef CONFIG_VIDEO_LOGO +void easylogo_plot (fastimage_t * image, void *screen, int width, int x, + int y) +{ + int skip = width - image->width, xcount, ycount = image->height; + +#ifdef VIDEO_MODE_YUYV + ushort *source = (ushort *) image->data; + ushort *dest = (ushort *) screen + y * width + x; + + while (ycount--) { + xcount = image->width; + while (xcount--) + *dest++ = *source++; + dest += skip; + } +#endif +#ifdef VIDEO_MODE_RGB + unsigned char + *source = (unsigned short *) image->data, + *dest = (unsigned short *) screen + ((y * width) + x) * 3; + + while (ycount--) { + xcount = image->width * 3; + memcpy (dest, source, xcount); + source += xcount; + dest += ycount; + } +#endif +} + +static void *video_logo (void) +{ + u16 *screen = video_fb_address, width = VIDEO_COLS; +#ifdef VIDEO_INFO +# ifndef CONFIG_FADS + char temp[32]; +# endif + char info[80]; +#endif /* VIDEO_INFO */ + + easylogo_plot (VIDEO_LOGO_ADDR, screen, width, 0, 0); + +#ifdef VIDEO_INFO + sprintf (info, "%s (%s - %s) ", + U_BOOT_VERSION, U_BOOT_DATE, U_BOOT_TIME); + video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y, info); + + sprintf (info, "(C) 2002 DENX Software Engineering"); + video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y + VIDEO_FONT_HEIGHT, + info); + + sprintf (info, " Wolfgang DENK, wd@denx.de"); + video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y + VIDEO_FONT_HEIGHT * 2, + info); +#ifndef CONFIG_FADS /* all normal boards */ + /* leave one blank line */ + + sprintf (info, "MPC823 CPU at %s MHz, %ld MB RAM, %ld MB Flash", + strmhz(temp, gd->cpu_clk), + gd->ram_size >> 20, + gd->bd->bi_flashsize >> 20 ); + video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y + VIDEO_FONT_HEIGHT * 4, + info); +#else /* FADS :-( */ + sprintf (info, "MPC823 CPU at 50 MHz on FADS823 board"); + video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y + VIDEO_FONT_HEIGHT, + info); + + sprintf (info, "2MB FLASH - 8MB DRAM - 4MB SRAM"); + video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y + VIDEO_FONT_HEIGHT * 2, + info); +#endif +#endif + + return video_fb_address + VIDEO_LOGO_HEIGHT * VIDEO_LINE_LEN; +} +#endif + +/************************************************************************/ +/* ** VIDEO HIGH-LEVEL FUNCTIONS */ +/************************************************************************/ + +static int video_init (void *videobase) +{ + /* Initialize the encoder */ + debug ("[VIDEO] Initializing video encoder...\n"); + video_encoder_init (); + + /* Initialize the video controller */ + debug ("[VIDEO] Initializing video controller at %08x...\n", + (int) videobase); + video_ctrl_init (videobase); + + /* Setting the palette */ + video_setpalette (CONSOLE_COLOR_BLACK, 0, 0, 0); + video_setpalette (CONSOLE_COLOR_RED, 0xFF, 0, 0); + video_setpalette (CONSOLE_COLOR_GREEN, 0, 0xFF, 0); + video_setpalette (CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); + video_setpalette (CONSOLE_COLOR_BLUE, 0, 0, 0xFF); + video_setpalette (CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); + video_setpalette (CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); + video_setpalette (CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); + video_setpalette (CONSOLE_COLOR_GREY2, 0xF8, 0xF8, 0xF8); + video_setpalette (CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); + +#ifndef CONFIG_SYS_WHITE_ON_BLACK + video_setfgcolor (CONSOLE_COLOR_BLACK); + video_setbgcolor (CONSOLE_COLOR_GREY2); +#else + video_setfgcolor (CONSOLE_COLOR_GREY2); + video_setbgcolor (CONSOLE_COLOR_BLACK); +#endif /* CONFIG_SYS_WHITE_ON_BLACK */ + +#ifdef CONFIG_VIDEO_LOGO + /* Paint the logo and retrieve tv base address */ + debug ("[VIDEO] Drawing the logo...\n"); + video_console_address = video_logo (); +#else + video_console_address = video_fb_address; +#endif + +#ifdef VIDEO_BLINK + /* Enable the blinking (under construction) */ + blink_init (); + blink_set (0); /* To Fix! */ +#endif + + /* Initialize the console */ + console_col = 0; + console_row = 0; + video_enable = 1; + +#ifdef VIDEO_MODE_PAL +# define VIDEO_MODE_TMP1 "PAL" +#endif +#ifdef VIDEO_MODE_NTSC +# define VIDEO_MODE_TMP1 "NTSC" +#endif +#ifdef VIDEO_MODE_YUYV +# define VIDEO_MODE_TMP2 "YCbYCr" +#endif +#ifdef VIDEO_MODE_RGB +# define VIDEO_MODE_TMP2 "RGB" +#endif + debug ( VIDEO_MODE_TMP1 + " %dx%dx%d (" VIDEO_MODE_TMP2 ") on %s - console %dx%d\n", + VIDEO_COLS, VIDEO_ROWS, VIDEO_MODE_BPP, + VIDEO_ENCODER_NAME, CONSOLE_COLS, CONSOLE_ROWS); + return 0; +} + +int drv_video_init (void) +{ + int error, devices = 1; + + struct stdio_dev videodev; + + video_init ((void *)(gd->fb_base)); /* Video initialization */ + +/* Device initialization */ + + memset (&videodev, 0, sizeof (videodev)); + + strcpy (videodev.name, "video"); + videodev.ext = DEV_EXT_VIDEO; /* Video extensions */ + videodev.flags = DEV_FLAGS_OUTPUT; /* Output only */ + videodev.putc = video_putc; /* 'putc' function */ + videodev.puts = video_puts; /* 'puts' function */ + + error = stdio_register (&videodev); + + return (error == 0) ? devices : error; +} + +/************************************************************************/ +/* ** ROM capable initialization part - needed to reserve FB memory */ +/************************************************************************/ + +/* + * This is called early in the system initialization to grab memory + * for the video controller. + * Returns new address for monitor, after reserving video buffer memory + * + * Note that this is running from ROM, so no write access to global data. + */ +ulong video_setmem (ulong addr) +{ + /* Allocate pages for the frame buffer. */ + addr -= VIDEO_SIZE; + + debug ("Reserving %dk for Video Framebuffer at: %08lx\n", + VIDEO_SIZE>>10, addr); + + return (addr); +} + +#endif diff --git a/arch/ppc/cpu/mpc8xx/wlkbd.c b/arch/ppc/cpu/mpc8xx/wlkbd.c new file mode 100644 index 0000000..13009e2 --- /dev/null +++ b/arch/ppc/cpu/mpc8xx/wlkbd.c @@ -0,0 +1,36 @@ +/* + * (C) Copyright 2000 + * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <config.h> + +#ifdef CONFIG_WL_4PPM_KEYBOARD + +/* WIP: Wireless keyboard on SMC + */ +int drv_wlkbd_init (void) +{ + return 0 ; +} + +#endif /* CONFIG_WL_4PPM_KEYBOARD */ diff --git a/arch/ppc/cpu/mpc8xxx/Makefile b/arch/ppc/cpu/mpc8xxx/Makefile new file mode 100644 index 0000000..481f9e5 --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/Makefile @@ -0,0 +1,27 @@ +# +# Copyright 2009 Freescale Semiconductor, Inc. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# Version 2 as published by the Free Software Foundation. +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib8xxx.a + +COBJS-y += cpu.o +COBJS-$(CONFIG_OF_LIBFDT) += fdt.o +COBJS-$(CONFIG_PCI) += pci_cfg.o + +SRCS := $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) + +all: $(obj).depend $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend diff --git a/arch/ppc/cpu/mpc8xxx/cpu.c b/arch/ppc/cpu/mpc8xxx/cpu.c new file mode 100644 index 0000000..fef062b --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/cpu.c @@ -0,0 +1,144 @@ +/* + * Copyright 2009-2010 Freescale Semiconductor, Inc. + * + * This file is derived from arch/ppc/cpu/mpc85xx/cpu.c and + * arch/ppc/cpu/mpc86xx/cpu.c. Basically this file contains + * cpu specific common code for 85xx/86xx processors. + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <common.h> +#include <command.h> +#include <tsec.h> +#include <netdev.h> +#include <asm/cache.h> +#include <asm/io.h> + +DECLARE_GLOBAL_DATA_PTR; + +struct cpu_type cpu_type_list [] = { +#if defined(CONFIG_MPC85xx) + CPU_TYPE_ENTRY(8533, 8533, 1), + CPU_TYPE_ENTRY(8533, 8533_E, 1), + CPU_TYPE_ENTRY(8535, 8535, 1), + CPU_TYPE_ENTRY(8535, 8535_E, 1), + CPU_TYPE_ENTRY(8536, 8536, 1), + CPU_TYPE_ENTRY(8536, 8536_E, 1), + CPU_TYPE_ENTRY(8540, 8540, 1), + CPU_TYPE_ENTRY(8541, 8541, 1), + CPU_TYPE_ENTRY(8541, 8541_E, 1), + CPU_TYPE_ENTRY(8543, 8543, 1), + CPU_TYPE_ENTRY(8543, 8543_E, 1), + CPU_TYPE_ENTRY(8544, 8544, 1), + CPU_TYPE_ENTRY(8544, 8544_E, 1), + CPU_TYPE_ENTRY(8545, 8545, 1), + CPU_TYPE_ENTRY(8545, 8545_E, 1), + CPU_TYPE_ENTRY(8547, 8547_E, 1), + CPU_TYPE_ENTRY(8548, 8548, 1), + CPU_TYPE_ENTRY(8548, 8548_E, 1), + CPU_TYPE_ENTRY(8555, 8555, 1), + CPU_TYPE_ENTRY(8555, 8555_E, 1), + CPU_TYPE_ENTRY(8560, 8560, 1), + CPU_TYPE_ENTRY(8567, 8567, 1), + CPU_TYPE_ENTRY(8567, 8567_E, 1), + CPU_TYPE_ENTRY(8568, 8568, 1), + CPU_TYPE_ENTRY(8568, 8568_E, 1), + CPU_TYPE_ENTRY(8569, 8569, 1), + CPU_TYPE_ENTRY(8569, 8569_E, 1), + CPU_TYPE_ENTRY(8572, 8572, 2), + CPU_TYPE_ENTRY(8572, 8572_E, 2), + CPU_TYPE_ENTRY(P1011, P1011, 1), + CPU_TYPE_ENTRY(P1011, P1011_E, 1), + CPU_TYPE_ENTRY(P1012, P1012, 1), + CPU_TYPE_ENTRY(P1012, P1012_E, 1), + CPU_TYPE_ENTRY(P1013, P1013, 1), + CPU_TYPE_ENTRY(P1013, P1013_E, 1), + CPU_TYPE_ENTRY(P1020, P1020, 2), + CPU_TYPE_ENTRY(P1020, P1020_E, 2), + CPU_TYPE_ENTRY(P1021, P1021, 2), + CPU_TYPE_ENTRY(P1021, P1021_E, 2), + CPU_TYPE_ENTRY(P1022, P1022, 2), + CPU_TYPE_ENTRY(P1022, P1022_E, 2), + CPU_TYPE_ENTRY(P2010, P2010, 1), + CPU_TYPE_ENTRY(P2010, P2010_E, 1), + CPU_TYPE_ENTRY(P2020, P2020, 2), + CPU_TYPE_ENTRY(P2020, P2020_E, 2), + CPU_TYPE_ENTRY(P4040, P4040, 4), + CPU_TYPE_ENTRY(P4040, P4040_E, 4), + CPU_TYPE_ENTRY(P4080, P4080, 8), + CPU_TYPE_ENTRY(P4080, P4080_E, 8), +#elif defined(CONFIG_MPC86xx) + CPU_TYPE_ENTRY(8610, 8610, 1), + CPU_TYPE_ENTRY(8641, 8641, 2), + CPU_TYPE_ENTRY(8641D, 8641D, 2), +#endif +}; + +struct cpu_type cpu_type_unknown = CPU_TYPE_ENTRY(Unknown, Unknown, 1); + +struct cpu_type *identify_cpu(u32 ver) +{ + int i; + for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) { + if (cpu_type_list[i].soc_ver == ver) + return &cpu_type_list[i]; + } + return &cpu_type_unknown; +} + +int cpu_numcores() { + struct cpu_type *cpu; + cpu = gd->cpu; + return cpu->num_cores; +} + +int probecpu (void) +{ + uint svr; + uint ver; + + svr = get_svr(); + ver = SVR_SOC_VER(svr); + + gd->cpu = identify_cpu(ver); + + return 0; +} + +/* + * Initializes on-chip ethernet controllers. + * to override, implement board_eth_init() + */ +int cpu_eth_init(bd_t *bis) +{ +#if defined(CONFIG_ETHER_ON_FCC) + fec_initialize(bis); +#endif + +#if defined(CONFIG_UEC_ETH) + uec_standard_init(bis); +#endif + +#if defined(CONFIG_TSEC_ENET) || defined(CONFIG_MPC85XX_FEC) + tsec_standard_init(bis); +#endif + + return 0; +} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/Makefile b/arch/ppc/cpu/mpc8xxx/ddr/Makefile new file mode 100644 index 0000000..cb7f856 --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/ddr/Makefile @@ -0,0 +1,35 @@ +# +# Copyright 2008 Freescale Semiconductor, Inc. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# Version 2 as published by the Free Software Foundation. +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)libddr.a + +COBJS-$(CONFIG_FSL_DDR1) += main.o util.o ctrl_regs.o options.o \ + lc_common_dimm_params.o +COBJS-$(CONFIG_FSL_DDR1) += ddr1_dimm_params.o + +COBJS-$(CONFIG_FSL_DDR2) += main.o util.o ctrl_regs.o options.o \ + lc_common_dimm_params.o +COBJS-$(CONFIG_FSL_DDR2) += ddr2_dimm_params.o + +COBJS-$(CONFIG_FSL_DDR3) += main.o util.o ctrl_regs.o options.o \ + lc_common_dimm_params.o +COBJS-$(CONFIG_FSL_DDR3) += ddr3_dimm_params.o + +SRCS := $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) + +all: $(obj).depend $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend diff --git a/arch/ppc/cpu/mpc8xxx/ddr/common_timing_params.h b/arch/ppc/cpu/mpc8xxx/ddr/common_timing_params.h new file mode 100644 index 0000000..5aea517 --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/ddr/common_timing_params.h @@ -0,0 +1,53 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#ifndef COMMON_TIMING_PARAMS_H +#define COMMON_TIMING_PARAMS_H + +typedef struct { + /* parameters to constrict */ + + unsigned int tCKmin_X_ps; + unsigned int tCKmax_ps; + unsigned int tCKmax_max_ps; + unsigned int tRCD_ps; + unsigned int tRP_ps; + unsigned int tRAS_ps; + + unsigned int tWR_ps; /* maximum = 63750 ps */ + unsigned int tWTR_ps; /* maximum = 63750 ps */ + unsigned int tRFC_ps; /* maximum = 255 ns + 256 ns + .75 ns + = 511750 ps */ + + unsigned int tRRD_ps; /* maximum = 63750 ps */ + unsigned int tRC_ps; /* maximum = 254 ns + .75 ns = 254750 ps */ + + unsigned int refresh_rate_ps; + + unsigned int tIS_ps; /* byte 32, spd->ca_setup */ + unsigned int tIH_ps; /* byte 33, spd->ca_hold */ + unsigned int tDS_ps; /* byte 34, spd->data_setup */ + unsigned int tDH_ps; /* byte 35, spd->data_hold */ + unsigned int tRTP_ps; /* byte 38, spd->trtp */ + unsigned int tDQSQ_max_ps; /* byte 44, spd->tdqsq */ + unsigned int tQHS_ps; /* byte 45, spd->tqhs */ + + unsigned int ndimms_present; + unsigned int lowest_common_SPD_caslat; + unsigned int highest_common_derated_caslat; + unsigned int additive_latency; + unsigned int all_DIMMs_burst_lengths_bitmask; + unsigned int all_DIMMs_registered; + unsigned int all_DIMMs_unbuffered; + unsigned int all_DIMMs_ECC_capable; + + unsigned long long total_mem; + unsigned long long base_address; +} common_timing_params_t; + +#endif diff --git a/arch/ppc/cpu/mpc8xxx/ddr/ctrl_regs.c b/arch/ppc/cpu/mpc8xxx/ddr/ctrl_regs.c new file mode 100644 index 0000000..03f9c43 --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/ddr/ctrl_regs.c @@ -0,0 +1,1366 @@ +/* + * Copyright 2008-2010 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +/* + * Generic driver for Freescale DDR/DDR2/DDR3 memory controller. + * Based on code from spd_sdram.c + * Author: James Yang [at freescale.com] + */ + +#include <common.h> +#include <asm/fsl_ddr_sdram.h> + +#include "ddr.h" + +extern unsigned int picos_to_mclk(unsigned int picos); +/* + * Determine Rtt value. + * + * This should likely be either board or controller specific. + * + * Rtt(nominal) - DDR2: + * 0 = Rtt disabled + * 1 = 75 ohm + * 2 = 150 ohm + * 3 = 50 ohm + * Rtt(nominal) - DDR3: + * 0 = Rtt disabled + * 1 = 60 ohm + * 2 = 120 ohm + * 3 = 40 ohm + * 4 = 20 ohm + * 5 = 30 ohm + * + * FIXME: Apparently 8641 needs a value of 2 + * FIXME: Old code seys if 667 MHz or higher, use 3 on 8572 + * + * FIXME: There was some effort down this line earlier: + * + * unsigned int i; + * for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL/2; i++) { + * if (popts->dimmslot[i].num_valid_cs + * && (popts->cs_local_opts[2*i].odt_rd_cfg + * || popts->cs_local_opts[2*i].odt_wr_cfg)) { + * rtt = 2; + * break; + * } + * } + */ +static inline int fsl_ddr_get_rtt(void) +{ + int rtt; + +#if defined(CONFIG_FSL_DDR1) + rtt = 0; +#elif defined(CONFIG_FSL_DDR2) + rtt = 3; +#else + rtt = 0; +#endif + + return rtt; +} + +/* + * compute the CAS write latency according to DDR3 spec + * CWL = 5 if tCK >= 2.5ns + * 6 if 2.5ns > tCK >= 1.875ns + * 7 if 1.875ns > tCK >= 1.5ns + * 8 if 1.5ns > tCK >= 1.25ns + */ +static inline unsigned int compute_cas_write_latency(void) +{ + unsigned int cwl; + const unsigned int mclk_ps = get_memory_clk_period_ps(); + + if (mclk_ps >= 2500) + cwl = 5; + else if (mclk_ps >= 1875) + cwl = 6; + else if (mclk_ps >= 1500) + cwl = 7; + else if (mclk_ps >= 1250) + cwl = 8; + else + cwl = 8; + return cwl; +} + +/* Chip Select Configuration (CSn_CONFIG) */ +static void set_csn_config(int i, fsl_ddr_cfg_regs_t *ddr, + const memctl_options_t *popts, + const dimm_params_t *dimm_params) +{ + unsigned int cs_n_en = 0; /* Chip Select enable */ + unsigned int intlv_en = 0; /* Memory controller interleave enable */ + unsigned int intlv_ctl = 0; /* Interleaving control */ + unsigned int ap_n_en = 0; /* Chip select n auto-precharge enable */ + unsigned int odt_rd_cfg = 0; /* ODT for reads configuration */ + unsigned int odt_wr_cfg = 0; /* ODT for writes configuration */ + unsigned int ba_bits_cs_n = 0; /* Num of bank bits for SDRAM on CSn */ + unsigned int row_bits_cs_n = 0; /* Num of row bits for SDRAM on CSn */ + unsigned int col_bits_cs_n = 0; /* Num of ocl bits for SDRAM on CSn */ + + /* Compute CS_CONFIG only for existing ranks of each DIMM. */ + if ((((i&1) == 0) + && (dimm_params[i/2].n_ranks == 1)) + || (dimm_params[i/2].n_ranks == 2)) { + unsigned int n_banks_per_sdram_device; + cs_n_en = 1; + if (i == 0) { + /* These fields only available in CS0_CONFIG */ + intlv_en = popts->memctl_interleaving; + intlv_ctl = popts->memctl_interleaving_mode; + } + ap_n_en = popts->cs_local_opts[i].auto_precharge; + odt_rd_cfg = popts->cs_local_opts[i].odt_rd_cfg; + odt_wr_cfg = popts->cs_local_opts[i].odt_wr_cfg; + n_banks_per_sdram_device + = dimm_params[i/2].n_banks_per_sdram_device; + ba_bits_cs_n = __ilog2(n_banks_per_sdram_device) - 2; + row_bits_cs_n = dimm_params[i/2].n_row_addr - 12; + col_bits_cs_n = dimm_params[i/2].n_col_addr - 8; + } + + ddr->cs[i].config = (0 + | ((cs_n_en & 0x1) << 31) + | ((intlv_en & 0x3) << 29) + | ((intlv_ctl & 0xf) << 24) + | ((ap_n_en & 0x1) << 23) + + /* XXX: some implementation only have 1 bit starting at left */ + | ((odt_rd_cfg & 0x7) << 20) + + /* XXX: Some implementation only have 1 bit starting at left */ + | ((odt_wr_cfg & 0x7) << 16) + + | ((ba_bits_cs_n & 0x3) << 14) + | ((row_bits_cs_n & 0x7) << 8) + | ((col_bits_cs_n & 0x7) << 0) + ); + debug("FSLDDR: cs[%d]_config = 0x%08x\n", i,ddr->cs[i].config); +} + +/* Chip Select Configuration 2 (CSn_CONFIG_2) */ +/* FIXME: 8572 */ +static void set_csn_config_2(int i, fsl_ddr_cfg_regs_t *ddr) +{ + unsigned int pasr_cfg = 0; /* Partial array self refresh config */ + + ddr->cs[i].config_2 = ((pasr_cfg & 7) << 24); + debug("FSLDDR: cs[%d]_config_2 = 0x%08x\n", i, ddr->cs[i].config_2); +} + +/* -3E = 667 CL5, -25 = CL6 800, -25E = CL5 800 */ + +#if !defined(CONFIG_FSL_DDR1) +/* + * DDR SDRAM Timing Configuration 0 (TIMING_CFG_0) + * + * Avoid writing for DDR I. The new PQ38 DDR controller + * dreams up non-zero default values to be backwards compatible. + */ +static void set_timing_cfg_0(fsl_ddr_cfg_regs_t *ddr) +{ + unsigned char trwt_mclk = 0; /* Read-to-write turnaround */ + unsigned char twrt_mclk = 0; /* Write-to-read turnaround */ + /* 7.5 ns on -3E; 0 means WL - CL + BL/2 + 1 */ + unsigned char trrt_mclk = 0; /* Read-to-read turnaround */ + unsigned char twwt_mclk = 0; /* Write-to-write turnaround */ + + /* Active powerdown exit timing (tXARD and tXARDS). */ + unsigned char act_pd_exit_mclk; + /* Precharge powerdown exit timing (tXP). */ + unsigned char pre_pd_exit_mclk; + /* Precharge powerdown exit timing (tAXPD). */ + unsigned char taxpd_mclk; + /* Mode register set cycle time (tMRD). */ + unsigned char tmrd_mclk; + +#if defined(CONFIG_FSL_DDR3) + /* + * (tXARD and tXARDS). Empirical? + * The DDR3 spec has not tXARD, + * we use the tXP instead of it. + * tXP=max(3nCK, 7.5ns) for DDR3. + * spec has not the tAXPD, we use + * tAXPD=8, need design to confirm. + */ + int tXP = max((get_memory_clk_period_ps() * 3), 7500); /* unit=ps */ + act_pd_exit_mclk = picos_to_mclk(tXP); + /* Mode register MR0[A12] is '1' - fast exit */ + pre_pd_exit_mclk = act_pd_exit_mclk; + taxpd_mclk = 8; + tmrd_mclk = 4; +#else /* CONFIG_FSL_DDR2 */ + /* + * (tXARD and tXARDS). Empirical? + * tXARD = 2 for DDR2 + * tXP=2 + * tAXPD=8 + */ + act_pd_exit_mclk = 2; + pre_pd_exit_mclk = 2; + taxpd_mclk = 8; + tmrd_mclk = 2; +#endif + + ddr->timing_cfg_0 = (0 + | ((trwt_mclk & 0x3) << 30) /* RWT */ + | ((twrt_mclk & 0x3) << 28) /* WRT */ + | ((trrt_mclk & 0x3) << 26) /* RRT */ + | ((twwt_mclk & 0x3) << 24) /* WWT */ + | ((act_pd_exit_mclk & 0x7) << 20) /* ACT_PD_EXIT */ + | ((pre_pd_exit_mclk & 0xF) << 16) /* PRE_PD_EXIT */ + | ((taxpd_mclk & 0xf) << 8) /* ODT_PD_EXIT */ + | ((tmrd_mclk & 0xf) << 0) /* MRS_CYC */ + ); + debug("FSLDDR: timing_cfg_0 = 0x%08x\n", ddr->timing_cfg_0); +} +#endif /* defined(CONFIG_FSL_DDR2) */ + +/* DDR SDRAM Timing Configuration 3 (TIMING_CFG_3) */ +static void set_timing_cfg_3(fsl_ddr_cfg_regs_t *ddr, + const common_timing_params_t *common_dimm, + unsigned int cas_latency) +{ + /* Extended Activate to precharge interval (tRAS) */ + unsigned int ext_acttopre = 0; + unsigned int ext_refrec; /* Extended refresh recovery time (tRFC) */ + unsigned int ext_caslat = 0; /* Extended MCAS latency from READ cmd */ + unsigned int cntl_adj = 0; /* Control Adjust */ + + /* If the tRAS > 19 MCLK, we use the ext mode */ + if (picos_to_mclk(common_dimm->tRAS_ps) > 0x13) + ext_acttopre = 1; + + ext_refrec = (picos_to_mclk(common_dimm->tRFC_ps) - 8) >> 4; + + /* If the CAS latency more than 8, use the ext mode */ + if (cas_latency > 8) + ext_caslat = 1; + + ddr->timing_cfg_3 = (0 + | ((ext_acttopre & 0x1) << 24) + | ((ext_refrec & 0xF) << 16) + | ((ext_caslat & 0x1) << 12) + | ((cntl_adj & 0x7) << 0) + ); + debug("FSLDDR: timing_cfg_3 = 0x%08x\n", ddr->timing_cfg_3); +} + +/* DDR SDRAM Timing Configuration 1 (TIMING_CFG_1) */ +static void set_timing_cfg_1(fsl_ddr_cfg_regs_t *ddr, + const memctl_options_t *popts, + const common_timing_params_t *common_dimm, + unsigned int cas_latency) +{ + /* Precharge-to-activate interval (tRP) */ + unsigned char pretoact_mclk; + /* Activate to precharge interval (tRAS) */ + unsigned char acttopre_mclk; + /* Activate to read/write interval (tRCD) */ + unsigned char acttorw_mclk; + /* CASLAT */ + unsigned char caslat_ctrl; + /* Refresh recovery time (tRFC) ; trfc_low */ + unsigned char refrec_ctrl; + /* Last data to precharge minimum interval (tWR) */ + unsigned char wrrec_mclk; + /* Activate-to-activate interval (tRRD) */ + unsigned char acttoact_mclk; + /* Last write data pair to read command issue interval (tWTR) */ + unsigned char wrtord_mclk; + + pretoact_mclk = picos_to_mclk(common_dimm->tRP_ps); + acttopre_mclk = picos_to_mclk(common_dimm->tRAS_ps); + acttorw_mclk = picos_to_mclk(common_dimm->tRCD_ps); + + /* + * Translate CAS Latency to a DDR controller field value: + * + * CAS Lat DDR I DDR II Ctrl + * Clocks SPD Bit SPD Bit Value + * ------- ------- ------- ----- + * 1.0 0 0001 + * 1.5 1 0010 + * 2.0 2 2 0011 + * 2.5 3 0100 + * 3.0 4 3 0101 + * 3.5 5 0110 + * 4.0 4 0111 + * 4.5 1000 + * 5.0 5 1001 + */ +#if defined(CONFIG_FSL_DDR1) + caslat_ctrl = (cas_latency + 1) & 0x07; +#elif defined(CONFIG_FSL_DDR2) + caslat_ctrl = 2 * cas_latency - 1; +#else + /* + * if the CAS latency more than 8 cycle, + * we need set extend bit for it at + * TIMING_CFG_3[EXT_CASLAT] + */ + if (cas_latency > 8) + cas_latency -= 8; + caslat_ctrl = 2 * cas_latency - 1; +#endif + + refrec_ctrl = picos_to_mclk(common_dimm->tRFC_ps) - 8; + wrrec_mclk = picos_to_mclk(common_dimm->tWR_ps); + if (popts->OTF_burst_chop_en) + wrrec_mclk += 2; + + acttoact_mclk = picos_to_mclk(common_dimm->tRRD_ps); + /* + * JEDEC has min requirement for tRRD + */ +#if defined(CONFIG_FSL_DDR3) + if (acttoact_mclk < 4) + acttoact_mclk = 4; +#endif + wrtord_mclk = picos_to_mclk(common_dimm->tWTR_ps); + /* + * JEDEC has some min requirements for tWTR + */ +#if defined(CONFIG_FSL_DDR2) + if (wrtord_mclk < 2) + wrtord_mclk = 2; +#elif defined(CONFIG_FSL_DDR3) + if (wrtord_mclk < 4) + wrtord_mclk = 4; +#endif + if (popts->OTF_burst_chop_en) + wrtord_mclk += 2; + + ddr->timing_cfg_1 = (0 + | ((pretoact_mclk & 0x0F) << 28) + | ((acttopre_mclk & 0x0F) << 24) + | ((acttorw_mclk & 0xF) << 20) + | ((caslat_ctrl & 0xF) << 16) + | ((refrec_ctrl & 0xF) << 12) + | ((wrrec_mclk & 0x0F) << 8) + | ((acttoact_mclk & 0x07) << 4) + | ((wrtord_mclk & 0x07) << 0) + ); + debug("FSLDDR: timing_cfg_1 = 0x%08x\n", ddr->timing_cfg_1); +} + +/* DDR SDRAM Timing Configuration 2 (TIMING_CFG_2) */ +static void set_timing_cfg_2(fsl_ddr_cfg_regs_t *ddr, + const memctl_options_t *popts, + const common_timing_params_t *common_dimm, + unsigned int cas_latency, + unsigned int additive_latency) +{ + /* Additive latency */ + unsigned char add_lat_mclk; + /* CAS-to-preamble override */ + unsigned short cpo; + /* Write latency */ + unsigned char wr_lat; + /* Read to precharge (tRTP) */ + unsigned char rd_to_pre; + /* Write command to write data strobe timing adjustment */ + unsigned char wr_data_delay; + /* Minimum CKE pulse width (tCKE) */ + unsigned char cke_pls; + /* Window for four activates (tFAW) */ + unsigned short four_act; + + /* FIXME add check that this must be less than acttorw_mclk */ + add_lat_mclk = additive_latency; + cpo = popts->cpo_override; + +#if defined(CONFIG_FSL_DDR1) + /* + * This is a lie. It should really be 1, but if it is + * set to 1, bits overlap into the old controller's + * otherwise unused ACSM field. If we leave it 0, then + * the HW will magically treat it as 1 for DDR 1. Oh Yea. + */ + wr_lat = 0; +#elif defined(CONFIG_FSL_DDR2) + wr_lat = cas_latency - 1; +#else + wr_lat = compute_cas_write_latency(); +#endif + + rd_to_pre = picos_to_mclk(common_dimm->tRTP_ps); + /* + * JEDEC has some min requirements for tRTP + */ +#if defined(CONFIG_FSL_DDR2) + if (rd_to_pre < 2) + rd_to_pre = 2; +#elif defined(CONFIG_FSL_DDR3) + if (rd_to_pre < 4) + rd_to_pre = 4; +#endif + if (additive_latency) + rd_to_pre += additive_latency; + if (popts->OTF_burst_chop_en) + rd_to_pre += 2; /* according to UM */ + + wr_data_delay = popts->write_data_delay; + cke_pls = picos_to_mclk(popts->tCKE_clock_pulse_width_ps); + four_act = picos_to_mclk(popts->tFAW_window_four_activates_ps); + + ddr->timing_cfg_2 = (0 + | ((add_lat_mclk & 0xf) << 28) + | ((cpo & 0x1f) << 23) + | ((wr_lat & 0xf) << 19) + | ((rd_to_pre & RD_TO_PRE_MASK) << RD_TO_PRE_SHIFT) + | ((wr_data_delay & WR_DATA_DELAY_MASK) << WR_DATA_DELAY_SHIFT) + | ((cke_pls & 0x7) << 6) + | ((four_act & 0x3f) << 0) + ); + debug("FSLDDR: timing_cfg_2 = 0x%08x\n", ddr->timing_cfg_2); +} + +/* DDR SDRAM control configuration (DDR_SDRAM_CFG) */ +static void set_ddr_sdram_cfg(fsl_ddr_cfg_regs_t *ddr, + const memctl_options_t *popts, + const common_timing_params_t *common_dimm) +{ + unsigned int mem_en; /* DDR SDRAM interface logic enable */ + unsigned int sren; /* Self refresh enable (during sleep) */ + unsigned int ecc_en; /* ECC enable. */ + unsigned int rd_en; /* Registered DIMM enable */ + unsigned int sdram_type; /* Type of SDRAM */ + unsigned int dyn_pwr; /* Dynamic power management mode */ + unsigned int dbw; /* DRAM dta bus width */ + unsigned int eight_be = 0; /* 8-beat burst enable, DDR2 is zero */ + unsigned int ncap = 0; /* Non-concurrent auto-precharge */ + unsigned int threeT_en; /* Enable 3T timing */ + unsigned int twoT_en; /* Enable 2T timing */ + unsigned int ba_intlv_ctl; /* Bank (CS) interleaving control */ + unsigned int x32_en = 0; /* x32 enable */ + unsigned int pchb8 = 0; /* precharge bit 8 enable */ + unsigned int hse; /* Global half strength override */ + unsigned int mem_halt = 0; /* memory controller halt */ + unsigned int bi = 0; /* Bypass initialization */ + + mem_en = 1; + sren = popts->self_refresh_in_sleep; + if (common_dimm->all_DIMMs_ECC_capable) { + /* Allow setting of ECC only if all DIMMs are ECC. */ + ecc_en = popts->ECC_mode; + } else { + ecc_en = 0; + } + + rd_en = (common_dimm->all_DIMMs_registered + && !common_dimm->all_DIMMs_unbuffered); + + sdram_type = CONFIG_FSL_SDRAM_TYPE; + + dyn_pwr = popts->dynamic_power; + dbw = popts->data_bus_width; + /* 8-beat burst enable DDR-III case + * we must clear it when use the on-the-fly mode, + * must set it when use the 32-bits bus mode. + */ + if (sdram_type == SDRAM_TYPE_DDR3) { + if (popts->burst_length == DDR_BL8) + eight_be = 1; + if (popts->burst_length == DDR_OTF) + eight_be = 0; + if (dbw == 0x1) + eight_be = 1; + } + + threeT_en = popts->threeT_en; + twoT_en = popts->twoT_en; + ba_intlv_ctl = popts->ba_intlv_ctl; + hse = popts->half_strength_driver_enable; + + ddr->ddr_sdram_cfg = (0 + | ((mem_en & 0x1) << 31) + | ((sren & 0x1) << 30) + | ((ecc_en & 0x1) << 29) + | ((rd_en & 0x1) << 28) + | ((sdram_type & 0x7) << 24) + | ((dyn_pwr & 0x1) << 21) + | ((dbw & 0x3) << 19) + | ((eight_be & 0x1) << 18) + | ((ncap & 0x1) << 17) + | ((threeT_en & 0x1) << 16) + | ((twoT_en & 0x1) << 15) + | ((ba_intlv_ctl & 0x7F) << 8) + | ((x32_en & 0x1) << 5) + | ((pchb8 & 0x1) << 4) + | ((hse & 0x1) << 3) + | ((mem_halt & 0x1) << 1) + | ((bi & 0x1) << 0) + ); + debug("FSLDDR: ddr_sdram_cfg = 0x%08x\n", ddr->ddr_sdram_cfg); +} + +/* DDR SDRAM control configuration 2 (DDR_SDRAM_CFG_2) */ +static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr, + const memctl_options_t *popts) +{ + unsigned int frc_sr = 0; /* Force self refresh */ + unsigned int sr_ie = 0; /* Self-refresh interrupt enable */ + unsigned int dll_rst_dis; /* DLL reset disable */ + unsigned int dqs_cfg; /* DQS configuration */ + unsigned int odt_cfg; /* ODT configuration */ + unsigned int num_pr; /* Number of posted refreshes */ + unsigned int obc_cfg; /* On-The-Fly Burst Chop Cfg */ + unsigned int ap_en; /* Address Parity Enable */ + unsigned int d_init; /* DRAM data initialization */ + unsigned int rcw_en = 0; /* Register Control Word Enable */ + unsigned int md_en = 0; /* Mirrored DIMM Enable */ + + dll_rst_dis = 1; /* Make this configurable */ + dqs_cfg = popts->DQS_config; + if (popts->cs_local_opts[0].odt_rd_cfg + || popts->cs_local_opts[0].odt_wr_cfg) { + /* FIXME */ + odt_cfg = 2; + } else { + odt_cfg = 0; + } + + num_pr = 1; /* Make this configurable */ + + /* + * 8572 manual says + * {TIMING_CFG_1[PRETOACT] + * + [DDR_SDRAM_CFG_2[NUM_PR] + * * ({EXT_REFREC || REFREC} + 8 + 2)]} + * << DDR_SDRAM_INTERVAL[REFINT] + */ +#if defined(CONFIG_FSL_DDR3) + obc_cfg = popts->OTF_burst_chop_en; +#else + obc_cfg = 0; +#endif + + ap_en = 0; /* Make this configurable? */ + +#if defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) + /* Use the DDR controller to auto initialize memory. */ + d_init = 1; + ddr->ddr_data_init = CONFIG_MEM_INIT_VALUE; + debug("DDR: ddr_data_init = 0x%08x\n", ddr->ddr_data_init); +#else + /* Memory will be initialized via DMA, or not at all. */ + d_init = 0; +#endif + +#if defined(CONFIG_FSL_DDR3) + md_en = popts->mirrored_dimm; +#endif + ddr->ddr_sdram_cfg_2 = (0 + | ((frc_sr & 0x1) << 31) + | ((sr_ie & 0x1) << 30) + | ((dll_rst_dis & 0x1) << 29) + | ((dqs_cfg & 0x3) << 26) + | ((odt_cfg & 0x3) << 21) + | ((num_pr & 0xf) << 12) + | ((obc_cfg & 0x1) << 6) + | ((ap_en & 0x1) << 5) + | ((d_init & 0x1) << 4) + | ((rcw_en & 0x1) << 2) + | ((md_en & 0x1) << 0) + ); + debug("FSLDDR: ddr_sdram_cfg_2 = 0x%08x\n", ddr->ddr_sdram_cfg_2); +} + +/* DDR SDRAM Mode configuration 2 (DDR_SDRAM_MODE_2) */ +static void set_ddr_sdram_mode_2(fsl_ddr_cfg_regs_t *ddr, + const memctl_options_t *popts) +{ + unsigned short esdmode2 = 0; /* Extended SDRAM mode 2 */ + unsigned short esdmode3 = 0; /* Extended SDRAM mode 3 */ + +#if defined(CONFIG_FSL_DDR3) + unsigned int rtt_wr = 0; /* Rtt_WR - dynamic ODT off */ + unsigned int srt = 0; /* self-refresh temerature, normal range */ + unsigned int asr = 0; /* auto self-refresh disable */ + unsigned int cwl = compute_cas_write_latency() - 5; + unsigned int pasr = 0; /* partial array self refresh disable */ + + if (popts->rtt_override) + rtt_wr = popts->rtt_wr_override_value; + + esdmode2 = (0 + | ((rtt_wr & 0x3) << 9) + | ((srt & 0x1) << 7) + | ((asr & 0x1) << 6) + | ((cwl & 0x7) << 3) + | ((pasr & 0x7) << 0)); +#endif + ddr->ddr_sdram_mode_2 = (0 + | ((esdmode2 & 0xFFFF) << 16) + | ((esdmode3 & 0xFFFF) << 0) + ); + debug("FSLDDR: ddr_sdram_mode_2 = 0x%08x\n", ddr->ddr_sdram_mode_2); +} + +/* DDR SDRAM Interval Configuration (DDR_SDRAM_INTERVAL) */ +static void set_ddr_sdram_interval(fsl_ddr_cfg_regs_t *ddr, + const memctl_options_t *popts, + const common_timing_params_t *common_dimm) +{ + unsigned int refint; /* Refresh interval */ + unsigned int bstopre; /* Precharge interval */ + + refint = picos_to_mclk(common_dimm->refresh_rate_ps); + + bstopre = popts->bstopre; + + /* refint field used 0x3FFF in earlier controllers */ + ddr->ddr_sdram_interval = (0 + | ((refint & 0xFFFF) << 16) + | ((bstopre & 0x3FFF) << 0) + ); + debug("FSLDDR: ddr_sdram_interval = 0x%08x\n", ddr->ddr_sdram_interval); +} + +#if defined(CONFIG_FSL_DDR3) +/* DDR SDRAM Mode configuration set (DDR_SDRAM_MODE) */ +static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr, + const memctl_options_t *popts, + const common_timing_params_t *common_dimm, + unsigned int cas_latency, + unsigned int additive_latency) +{ + unsigned short esdmode; /* Extended SDRAM mode */ + unsigned short sdmode; /* SDRAM mode */ + + /* Mode Register - MR1 */ + unsigned int qoff = 0; /* Output buffer enable 0=yes, 1=no */ + unsigned int tdqs_en = 0; /* TDQS Enable: 0=no, 1=yes */ + unsigned int rtt; + unsigned int wrlvl_en = 0; /* Write level enable: 0=no, 1=yes */ + unsigned int al = 0; /* Posted CAS# additive latency (AL) */ + unsigned int dic = 1; /* Output driver impedance, 34ohm */ + unsigned int dll_en = 0; /* DLL Enable 0=Enable (Normal), + 1=Disable (Test/Debug) */ + + /* Mode Register - MR0 */ + unsigned int dll_on; /* DLL control for precharge PD, 0=off, 1=on */ + unsigned int wr; /* Write Recovery */ + unsigned int dll_rst; /* DLL Reset */ + unsigned int mode; /* Normal=0 or Test=1 */ + unsigned int caslat = 4;/* CAS# latency, default set as 6 cycles */ + /* BT: Burst Type (0=Nibble Sequential, 1=Interleaved) */ + unsigned int bt; + unsigned int bl; /* BL: Burst Length */ + + unsigned int wr_mclk; + + const unsigned int mclk_ps = get_memory_clk_period_ps(); + + rtt = fsl_ddr_get_rtt(); + if (popts->rtt_override) + rtt = popts->rtt_override_value; + + if (additive_latency == (cas_latency - 1)) + al = 1; + if (additive_latency == (cas_latency - 2)) + al = 2; + + /* + * The esdmode value will also be used for writing + * MR1 during write leveling for DDR3, although the + * bits specifically related to the write leveling + * scheme will be handled automatically by the DDR + * controller. so we set the wrlvl_en = 0 here. + */ + esdmode = (0 + | ((qoff & 0x1) << 12) + | ((tdqs_en & 0x1) << 11) + | ((rtt & 0x4) << 7) /* rtt field is split */ + | ((wrlvl_en & 0x1) << 7) + | ((rtt & 0x2) << 5) /* rtt field is split */ + | ((dic & 0x2) << 4) /* DIC field is split */ + | ((al & 0x3) << 3) + | ((rtt & 0x1) << 2) /* rtt field is split */ + | ((dic & 0x1) << 1) /* DIC field is split */ + | ((dll_en & 0x1) << 0) + ); + + /* + * DLL control for precharge PD + * 0=slow exit DLL off (tXPDLL) + * 1=fast exit DLL on (tXP) + */ + dll_on = 1; + wr_mclk = (common_dimm->tWR_ps + mclk_ps - 1) / mclk_ps; + if (wr_mclk >= 12) + wr = 6; + else if (wr_mclk >= 9) + wr = 5; + else + wr = wr_mclk - 4; + dll_rst = 0; /* dll no reset */ + mode = 0; /* normal mode */ + + /* look up table to get the cas latency bits */ + if (cas_latency >= 5 && cas_latency <= 11) { + unsigned char cas_latency_table[7] = { + 0x2, /* 5 clocks */ + 0x4, /* 6 clocks */ + 0x6, /* 7 clocks */ + 0x8, /* 8 clocks */ + 0xa, /* 9 clocks */ + 0xc, /* 10 clocks */ + 0xe /* 11 clocks */ + }; + caslat = cas_latency_table[cas_latency - 5]; + } + bt = 0; /* Nibble sequential */ + + switch (popts->burst_length) { + case DDR_BL8: + bl = 0; + break; + case DDR_OTF: + bl = 1; + break; + case DDR_BC4: + bl = 2; + break; + default: + printf("Error: invalid burst length of %u specified. " + " Defaulting to on-the-fly BC4 or BL8 beats.\n", + popts->burst_length); + bl = 1; + break; + } + + sdmode = (0 + | ((dll_on & 0x1) << 12) + | ((wr & 0x7) << 9) + | ((dll_rst & 0x1) << 8) + | ((mode & 0x1) << 7) + | (((caslat >> 1) & 0x7) << 4) + | ((bt & 0x1) << 3) + | ((bl & 0x3) << 0) + ); + + ddr->ddr_sdram_mode = (0 + | ((esdmode & 0xFFFF) << 16) + | ((sdmode & 0xFFFF) << 0) + ); + + debug("FSLDDR: ddr_sdram_mode = 0x%08x\n", ddr->ddr_sdram_mode); +} + +#else /* !CONFIG_FSL_DDR3 */ + +/* DDR SDRAM Mode configuration set (DDR_SDRAM_MODE) */ +static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr, + const memctl_options_t *popts, + const common_timing_params_t *common_dimm, + unsigned int cas_latency, + unsigned int additive_latency) +{ + unsigned short esdmode; /* Extended SDRAM mode */ + unsigned short sdmode; /* SDRAM mode */ + + /* + * FIXME: This ought to be pre-calculated in a + * technology-specific routine, + * e.g. compute_DDR2_mode_register(), and then the + * sdmode and esdmode passed in as part of common_dimm. + */ + + /* Extended Mode Register */ + unsigned int mrs = 0; /* Mode Register Set */ + unsigned int outputs = 0; /* 0=Enabled, 1=Disabled */ + unsigned int rdqs_en = 0; /* RDQS Enable: 0=no, 1=yes */ + unsigned int dqs_en = 0; /* DQS# Enable: 0=enable, 1=disable */ + unsigned int ocd = 0; /* 0x0=OCD not supported, + 0x7=OCD default state */ + unsigned int rtt; + unsigned int al; /* Posted CAS# additive latency (AL) */ + unsigned int ods = 0; /* Output Drive Strength: + 0 = Full strength (18ohm) + 1 = Reduced strength (4ohm) */ + unsigned int dll_en = 0; /* DLL Enable 0=Enable (Normal), + 1=Disable (Test/Debug) */ + + /* Mode Register (MR) */ + unsigned int mr; /* Mode Register Definition */ + unsigned int pd; /* Power-Down Mode */ + unsigned int wr; /* Write Recovery */ + unsigned int dll_res; /* DLL Reset */ + unsigned int mode; /* Normal=0 or Test=1 */ + unsigned int caslat = 0;/* CAS# latency */ + /* BT: Burst Type (0=Sequential, 1=Interleaved) */ + unsigned int bt; + unsigned int bl; /* BL: Burst Length */ + +#if defined(CONFIG_FSL_DDR2) + const unsigned int mclk_ps = get_memory_clk_period_ps(); +#endif + + rtt = fsl_ddr_get_rtt(); + + al = additive_latency; + + esdmode = (0 + | ((mrs & 0x3) << 14) + | ((outputs & 0x1) << 12) + | ((rdqs_en & 0x1) << 11) + | ((dqs_en & 0x1) << 10) + | ((ocd & 0x7) << 7) + | ((rtt & 0x2) << 5) /* rtt field is split */ + | ((al & 0x7) << 3) + | ((rtt & 0x1) << 2) /* rtt field is split */ + | ((ods & 0x1) << 1) + | ((dll_en & 0x1) << 0) + ); + + mr = 0; /* FIXME: CHECKME */ + + /* + * 0 = Fast Exit (Normal) + * 1 = Slow Exit (Low Power) + */ + pd = 0; + +#if defined(CONFIG_FSL_DDR1) + wr = 0; /* Historical */ +#elif defined(CONFIG_FSL_DDR2) + wr = (common_dimm->tWR_ps + mclk_ps - 1) / mclk_ps - 1; +#endif + dll_res = 0; + mode = 0; + +#if defined(CONFIG_FSL_DDR1) + if (1 <= cas_latency && cas_latency <= 4) { + unsigned char mode_caslat_table[4] = { + 0x5, /* 1.5 clocks */ + 0x2, /* 2.0 clocks */ + 0x6, /* 2.5 clocks */ + 0x3 /* 3.0 clocks */ + }; + caslat = mode_caslat_table[cas_latency - 1]; + } else { + printf("Warning: unknown cas_latency %d\n", cas_latency); + } +#elif defined(CONFIG_FSL_DDR2) + caslat = cas_latency; +#endif + bt = 0; + + switch (popts->burst_length) { + case DDR_BL4: + bl = 2; + break; + case DDR_BL8: + bl = 3; + break; + default: + printf("Error: invalid burst length of %u specified. " + " Defaulting to 4 beats.\n", + popts->burst_length); + bl = 2; + break; + } + + sdmode = (0 + | ((mr & 0x3) << 14) + | ((pd & 0x1) << 12) + | ((wr & 0x7) << 9) + | ((dll_res & 0x1) << 8) + | ((mode & 0x1) << 7) + | ((caslat & 0x7) << 4) + | ((bt & 0x1) << 3) + | ((bl & 0x7) << 0) + ); + + ddr->ddr_sdram_mode = (0 + | ((esdmode & 0xFFFF) << 16) + | ((sdmode & 0xFFFF) << 0) + ); + debug("FSLDDR: ddr_sdram_mode = 0x%08x\n", ddr->ddr_sdram_mode); +} +#endif + +/* DDR SDRAM Data Initialization (DDR_DATA_INIT) */ +static void set_ddr_data_init(fsl_ddr_cfg_regs_t *ddr) +{ + unsigned int init_value; /* Initialization value */ + + init_value = 0xDEADBEEF; + ddr->ddr_data_init = init_value; +} + +/* + * DDR SDRAM Clock Control (DDR_SDRAM_CLK_CNTL) + * The old controller on the 8540/60 doesn't have this register. + * Hope it's OK to set it (to 0) anyway. + */ +static void set_ddr_sdram_clk_cntl(fsl_ddr_cfg_regs_t *ddr, + const memctl_options_t *popts) +{ + unsigned int clk_adjust; /* Clock adjust */ + + clk_adjust = popts->clk_adjust; + ddr->ddr_sdram_clk_cntl = (clk_adjust & 0xF) << 23; +} + +/* DDR Initialization Address (DDR_INIT_ADDR) */ +static void set_ddr_init_addr(fsl_ddr_cfg_regs_t *ddr) +{ + unsigned int init_addr = 0; /* Initialization address */ + + ddr->ddr_init_addr = init_addr; +} + +/* DDR Initialization Address (DDR_INIT_EXT_ADDR) */ +static void set_ddr_init_ext_addr(fsl_ddr_cfg_regs_t *ddr) +{ + unsigned int uia = 0; /* Use initialization address */ + unsigned int init_ext_addr = 0; /* Initialization address */ + + ddr->ddr_init_ext_addr = (0 + | ((uia & 0x1) << 31) + | (init_ext_addr & 0xF) + ); +} + +/* DDR SDRAM Timing Configuration 4 (TIMING_CFG_4) */ +static void set_timing_cfg_4(fsl_ddr_cfg_regs_t *ddr, + const memctl_options_t *popts) +{ + unsigned int rwt = 0; /* Read-to-write turnaround for same CS */ + unsigned int wrt = 0; /* Write-to-read turnaround for same CS */ + unsigned int rrt = 0; /* Read-to-read turnaround for same CS */ + unsigned int wwt = 0; /* Write-to-write turnaround for same CS */ + unsigned int dll_lock = 0; /* DDR SDRAM DLL Lock Time */ + +#if defined(CONFIG_FSL_DDR3) + if (popts->burst_length == DDR_BL8) { + /* We set BL/2 for fixed BL8 */ + rrt = 0; /* BL/2 clocks */ + wwt = 0; /* BL/2 clocks */ + } else { + /* We need to set BL/2 + 2 to BC4 and OTF */ + rrt = 2; /* BL/2 + 2 clocks */ + wwt = 2; /* BL/2 + 2 clocks */ + } + dll_lock = 1; /* tDLLK = 512 clocks from spec */ +#endif + ddr->timing_cfg_4 = (0 + | ((rwt & 0xf) << 28) + | ((wrt & 0xf) << 24) + | ((rrt & 0xf) << 20) + | ((wwt & 0xf) << 16) + | (dll_lock & 0x3) + ); + debug("FSLDDR: timing_cfg_4 = 0x%08x\n", ddr->timing_cfg_4); +} + +/* DDR SDRAM Timing Configuration 5 (TIMING_CFG_5) */ +static void set_timing_cfg_5(fsl_ddr_cfg_regs_t *ddr) +{ + unsigned int rodt_on = 0; /* Read to ODT on */ + unsigned int rodt_off = 0; /* Read to ODT off */ + unsigned int wodt_on = 0; /* Write to ODT on */ + unsigned int wodt_off = 0; /* Write to ODT off */ + +#if defined(CONFIG_FSL_DDR3) + rodt_on = 3; /* 2 clocks */ + rodt_off = 4; /* 4 clocks */ + wodt_on = 2; /* 1 clocks */ + wodt_off = 4; /* 4 clocks */ +#endif + + ddr->timing_cfg_5 = (0 + | ((rodt_on & 0x1f) << 24) + | ((rodt_off & 0x7) << 20) + | ((wodt_on & 0x1f) << 12) + | ((wodt_off & 0x7) << 8) + ); + debug("FSLDDR: timing_cfg_5 = 0x%08x\n", ddr->timing_cfg_5); +} + +/* DDR ZQ Calibration Control (DDR_ZQ_CNTL) */ +static void set_ddr_zq_cntl(fsl_ddr_cfg_regs_t *ddr, unsigned int zq_en) +{ + unsigned int zqinit = 0;/* POR ZQ Calibration Time (tZQinit) */ + /* Normal Operation Full Calibration Time (tZQoper) */ + unsigned int zqoper = 0; + /* Normal Operation Short Calibration Time (tZQCS) */ + unsigned int zqcs = 0; + + if (zq_en) { + zqinit = 9; /* 512 clocks */ + zqoper = 8; /* 256 clocks */ + zqcs = 6; /* 64 clocks */ + } + + ddr->ddr_zq_cntl = (0 + | ((zq_en & 0x1) << 31) + | ((zqinit & 0xF) << 24) + | ((zqoper & 0xF) << 16) + | ((zqcs & 0xF) << 8) + ); +} + +/* DDR Write Leveling Control (DDR_WRLVL_CNTL) */ +static void set_ddr_wrlvl_cntl(fsl_ddr_cfg_regs_t *ddr, unsigned int wrlvl_en, + const memctl_options_t *popts) +{ + /* + * First DQS pulse rising edge after margining mode + * is programmed (tWL_MRD) + */ + unsigned int wrlvl_mrd = 0; + /* ODT delay after margining mode is programmed (tWL_ODTEN) */ + unsigned int wrlvl_odten = 0; + /* DQS/DQS_ delay after margining mode is programmed (tWL_DQSEN) */ + unsigned int wrlvl_dqsen = 0; + /* WRLVL_SMPL: Write leveling sample time */ + unsigned int wrlvl_smpl = 0; + /* WRLVL_WLR: Write leveling repeition time */ + unsigned int wrlvl_wlr = 0; + /* WRLVL_START: Write leveling start time */ + unsigned int wrlvl_start = 0; + + /* suggest enable write leveling for DDR3 due to fly-by topology */ + if (wrlvl_en) { + /* tWL_MRD min = 40 nCK, we set it 64 */ + wrlvl_mrd = 0x6; + /* tWL_ODTEN 128 */ + wrlvl_odten = 0x7; + /* tWL_DQSEN min = 25 nCK, we set it 32 */ + wrlvl_dqsen = 0x5; + /* + * Write leveling sample time at least need 6 clocks + * higher than tWLO to allow enough time for progagation + * delay and sampling the prime data bits. + */ + wrlvl_smpl = 0xf; + /* + * Write leveling repetition time + * at least tWLO + 6 clocks clocks + * we set it 32 + */ + wrlvl_wlr = 0x5; + /* + * Write leveling start time + * The value use for the DQS_ADJUST for the first sample + * when write leveling is enabled. + */ + wrlvl_start = 0x8; + /* + * Override the write leveling sample and start time + * according to specific board + */ + if (popts->wrlvl_override) { + wrlvl_smpl = popts->wrlvl_sample; + wrlvl_start = popts->wrlvl_start; + } + } + + ddr->ddr_wrlvl_cntl = (0 + | ((wrlvl_en & 0x1) << 31) + | ((wrlvl_mrd & 0x7) << 24) + | ((wrlvl_odten & 0x7) << 20) + | ((wrlvl_dqsen & 0x7) << 16) + | ((wrlvl_smpl & 0xf) << 12) + | ((wrlvl_wlr & 0x7) << 8) + | ((wrlvl_start & 0x1F) << 0) + ); +} + +/* DDR Self Refresh Counter (DDR_SR_CNTR) */ +static void set_ddr_sr_cntr(fsl_ddr_cfg_regs_t *ddr, unsigned int sr_it) +{ + /* Self Refresh Idle Threshold */ + ddr->ddr_sr_cntr = (sr_it & 0xF) << 16; +} + +/* DDR SDRAM Register Control Word 1 (DDR_SDRAM_RCW_1) */ +static void set_ddr_sdram_rcw_1(fsl_ddr_cfg_regs_t *ddr) +{ + unsigned int rcw0 = 0; /* RCW0: Register Control Word 0 */ + unsigned int rcw1 = 0; /* RCW1: Register Control Word 1 */ + unsigned int rcw2 = 0; /* RCW2: Register Control Word 2 */ + unsigned int rcw3 = 0; /* RCW3: Register Control Word 3 */ + unsigned int rcw4 = 0; /* RCW4: Register Control Word 4 */ + unsigned int rcw5 = 0; /* RCW5: Register Control Word 5 */ + unsigned int rcw6 = 0; /* RCW6: Register Control Word 6 */ + unsigned int rcw7 = 0; /* RCW7: Register Control Word 7 */ + + ddr->ddr_sdram_rcw_1 = (0 + | ((rcw0 & 0xF) << 28) + | ((rcw1 & 0xF) << 24) + | ((rcw2 & 0xF) << 20) + | ((rcw3 & 0xF) << 16) + | ((rcw4 & 0xF) << 12) + | ((rcw5 & 0xF) << 8) + | ((rcw6 & 0xF) << 4) + | ((rcw7 & 0xF) << 0) + ); +} + +/* DDR SDRAM Register Control Word 2 (DDR_SDRAM_RCW_2) */ +static void set_ddr_sdram_rcw_2(fsl_ddr_cfg_regs_t *ddr) +{ + unsigned int rcw8 = 0; /* RCW0: Register Control Word 8 */ + unsigned int rcw9 = 0; /* RCW1: Register Control Word 9 */ + unsigned int rcw10 = 0; /* RCW2: Register Control Word 10 */ + unsigned int rcw11 = 0; /* RCW3: Register Control Word 11 */ + unsigned int rcw12 = 0; /* RCW4: Register Control Word 12 */ + unsigned int rcw13 = 0; /* RCW5: Register Control Word 13 */ + unsigned int rcw14 = 0; /* RCW6: Register Control Word 14 */ + unsigned int rcw15 = 0; /* RCW7: Register Control Word 15 */ + + ddr->ddr_sdram_rcw_2 = (0 + | ((rcw8 & 0xF) << 28) + | ((rcw9 & 0xF) << 24) + | ((rcw10 & 0xF) << 20) + | ((rcw11 & 0xF) << 16) + | ((rcw12 & 0xF) << 12) + | ((rcw13 & 0xF) << 8) + | ((rcw14 & 0xF) << 4) + | ((rcw15 & 0xF) << 0) + ); +} + +unsigned int +check_fsl_memctl_config_regs(const fsl_ddr_cfg_regs_t *ddr) +{ + unsigned int res = 0; + + /* + * Check that DDR_SDRAM_CFG[RD_EN] and DDR_SDRAM_CFG[2T_EN] are + * not set at the same time. + */ + if (ddr->ddr_sdram_cfg & 0x10000000 + && ddr->ddr_sdram_cfg & 0x00008000) { + printf("Error: DDR_SDRAM_CFG[RD_EN] and DDR_SDRAM_CFG[2T_EN] " + " should not be set at the same time.\n"); + res++; + } + + return res; +} + +unsigned int +compute_fsl_memctl_config_regs(const memctl_options_t *popts, + fsl_ddr_cfg_regs_t *ddr, + const common_timing_params_t *common_dimm, + const dimm_params_t *dimm_params, + unsigned int dbw_cap_adj) +{ + unsigned int i; + unsigned int cas_latency; + unsigned int additive_latency; + unsigned int sr_it; + unsigned int zq_en; + unsigned int wrlvl_en; + + memset(ddr, 0, sizeof(fsl_ddr_cfg_regs_t)); + + if (common_dimm == NULL) { + printf("Error: subset DIMM params struct null pointer\n"); + return 1; + } + + /* + * Process overrides first. + * + * FIXME: somehow add dereated caslat to this + */ + cas_latency = (popts->cas_latency_override) + ? popts->cas_latency_override_value + : common_dimm->lowest_common_SPD_caslat; + + additive_latency = (popts->additive_latency_override) + ? popts->additive_latency_override_value + : common_dimm->additive_latency; + + sr_it = (popts->auto_self_refresh_en) + ? popts->sr_it + : 0; + /* ZQ calibration */ + zq_en = (popts->zq_en) ? 1 : 0; + /* write leveling */ + wrlvl_en = (popts->wrlvl_en) ? 1 : 0; + + /* Chip Select Memory Bounds (CSn_BNDS) */ + for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { + unsigned long long ea = 0, sa = 0; + + if (popts->ba_intlv_ctl && (i > 0) && + ((popts->ba_intlv_ctl & 0x60) != FSL_DDR_CS2_CS3 )) { + /* Don't set up boundaries for other CS + * other than CS0, if bank interleaving + * is enabled and not CS2+CS3 interleaved. + * But we need to set the ODT_RD_CFG and + * ODT_WR_CFG for CS1_CONFIG here. + */ + set_csn_config(i, ddr, popts, dimm_params); + break; + } + + if (dimm_params[i/2].n_ranks == 0) { + debug("Skipping setup of CS%u " + "because n_ranks on DIMM %u is 0\n", i, i/2); + continue; + } + if (popts->memctl_interleaving && popts->ba_intlv_ctl) { + /* + * This works superbank 2CS + * There are 2 memory controllers configured + * identically, memory is interleaved between them, + * and each controller uses rank interleaving within + * itself. Therefore the starting and ending address + * on each controller is twice the amount present on + * each controller. + */ + unsigned long long rank_density + = dimm_params[0].capacity; + ea = (2 * (rank_density >> dbw_cap_adj)) - 1; + } + else if (!popts->memctl_interleaving && popts->ba_intlv_ctl) { + /* + * If memory interleaving between controllers is NOT + * enabled, the starting address for each memory + * controller is distinct. However, because rank + * interleaving is enabled, the starting and ending + * addresses of the total memory on that memory + * controller needs to be programmed into its + * respective CS0_BNDS. + */ + unsigned long long rank_density + = dimm_params[i/2].rank_density; + switch (popts->ba_intlv_ctl & FSL_DDR_CS0_CS1_CS2_CS3) { + case FSL_DDR_CS0_CS1_CS2_CS3: + /* CS0+CS1+CS2+CS3 interleaving, only CS0_CNDS + * needs to be set. + */ + sa = common_dimm->base_address; + ea = sa + (4 * (rank_density >> dbw_cap_adj))-1; + break; + case FSL_DDR_CS0_CS1_AND_CS2_CS3: + /* CS0+CS1 and CS2+CS3 interleaving, CS0_CNDS + * and CS2_CNDS need to be set. + */ + if (!(i&1)) { + sa = dimm_params[i/2].base_address; + ea = sa + (i * (rank_density >> + dbw_cap_adj)) - 1; + } + break; + case FSL_DDR_CS0_CS1: + /* CS0+CS1 interleaving, CS0_CNDS needs + * to be set + */ + sa = common_dimm->base_address; + ea = sa + (2 * (rank_density >> dbw_cap_adj))-1; + break; + case FSL_DDR_CS2_CS3: + /* CS2+CS3 interleaving*/ + if (i == 2) { + sa = dimm_params[i/2].base_address; + ea = sa + (2 * (rank_density >> + dbw_cap_adj)) - 1; + } + break; + default: /* No bank(chip-select) interleaving */ + break; + } + } + else if (popts->memctl_interleaving && !popts->ba_intlv_ctl) { + /* + * Only the rank on CS0 of each memory controller may + * be used if memory controller interleaving is used + * without rank interleaving within each memory + * controller. However, the ending address programmed + * into each CS0 must be the sum of the amount of + * memory in the two CS0 ranks. + */ + if (i == 0) { + unsigned long long rank_density + = dimm_params[0].rank_density; + ea = (2 * (rank_density >> dbw_cap_adj)) - 1; + } + + } + else if (!popts->memctl_interleaving && !popts->ba_intlv_ctl) { + /* + * No rank interleaving and no memory controller + * interleaving. + */ + unsigned long long rank_density + = dimm_params[i/2].rank_density; + sa = dimm_params[i/2].base_address; + ea = sa + (rank_density >> dbw_cap_adj) - 1; + if (i&1) { + if ((dimm_params[i/2].n_ranks == 1)) { + /* Odd chip select, single-rank dimm */ + sa = 0; + ea = 0; + } else { + /* Odd chip select, dual-rank DIMM */ + sa += rank_density >> dbw_cap_adj; + ea += rank_density >> dbw_cap_adj; + } + } + } + + sa >>= 24; + ea >>= 24; + + ddr->cs[i].bnds = (0 + | ((sa & 0xFFF) << 16) /* starting address MSB */ + | ((ea & 0xFFF) << 0) /* ending address MSB */ + ); + + debug("FSLDDR: cs[%d]_bnds = 0x%08x\n", i, ddr->cs[i].bnds); + set_csn_config(i, ddr, popts, dimm_params); + set_csn_config_2(i, ddr); + } + +#if !defined(CONFIG_FSL_DDR1) + set_timing_cfg_0(ddr); +#endif + + set_timing_cfg_3(ddr, common_dimm, cas_latency); + set_timing_cfg_1(ddr, popts, common_dimm, cas_latency); + set_timing_cfg_2(ddr, popts, common_dimm, + cas_latency, additive_latency); + + set_ddr_sdram_cfg(ddr, popts, common_dimm); + + set_ddr_sdram_cfg_2(ddr, popts); + set_ddr_sdram_mode(ddr, popts, common_dimm, + cas_latency, additive_latency); + set_ddr_sdram_mode_2(ddr, popts); + set_ddr_sdram_interval(ddr, popts, common_dimm); + set_ddr_data_init(ddr); + set_ddr_sdram_clk_cntl(ddr, popts); + set_ddr_init_addr(ddr); + set_ddr_init_ext_addr(ddr); + set_timing_cfg_4(ddr, popts); + set_timing_cfg_5(ddr); + + set_ddr_zq_cntl(ddr, zq_en); + set_ddr_wrlvl_cntl(ddr, wrlvl_en, popts); + + set_ddr_sr_cntr(ddr, sr_it); + + set_ddr_sdram_rcw_1(ddr); + set_ddr_sdram_rcw_2(ddr); + + return check_fsl_memctl_config_regs(ddr); +} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/ddr.h b/arch/ppc/cpu/mpc8xxx/ddr/ddr.h new file mode 100644 index 0000000..f122075 --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/ddr/ddr.h @@ -0,0 +1,81 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#ifndef FSL_DDR_MAIN_H +#define FSL_DDR_MAIN_H + +#include <asm/fsl_ddr_sdram.h> +#include <asm/fsl_ddr_dimm_params.h> + +#include "common_timing_params.h" + +/* + * Bind the main DDR setup driver's generic names + * to this specific DDR technology. + */ +static __inline__ int +compute_dimm_parameters(const generic_spd_eeprom_t *spd, + dimm_params_t *pdimm, + unsigned int dimm_number) +{ + return ddr_compute_dimm_parameters(spd, pdimm, dimm_number); +} + +/* + * Data Structures + * + * All data structures have to be on the stack + */ +#define CONFIG_SYS_NUM_DDR_CTLRS CONFIG_NUM_DDR_CONTROLLERS +#define CONFIG_SYS_DIMM_SLOTS_PER_CTLR CONFIG_DIMM_SLOTS_PER_CTLR + +typedef struct { + generic_spd_eeprom_t + spd_installed_dimms[CONFIG_SYS_NUM_DDR_CTLRS][CONFIG_SYS_DIMM_SLOTS_PER_CTLR]; + struct dimm_params_s + dimm_params[CONFIG_SYS_NUM_DDR_CTLRS][CONFIG_SYS_DIMM_SLOTS_PER_CTLR]; + memctl_options_t memctl_opts[CONFIG_SYS_NUM_DDR_CTLRS]; + common_timing_params_t common_timing_params[CONFIG_SYS_NUM_DDR_CTLRS]; + fsl_ddr_cfg_regs_t fsl_ddr_config_reg[CONFIG_SYS_NUM_DDR_CTLRS]; +} fsl_ddr_info_t; + +/* Compute steps */ +#define STEP_GET_SPD (1 << 0) +#define STEP_COMPUTE_DIMM_PARMS (1 << 1) +#define STEP_COMPUTE_COMMON_PARMS (1 << 2) +#define STEP_GATHER_OPTS (1 << 3) +#define STEP_ASSIGN_ADDRESSES (1 << 4) +#define STEP_COMPUTE_REGS (1 << 5) +#define STEP_PROGRAM_REGS (1 << 6) +#define STEP_ALL 0xFFF + +extern unsigned long long +fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step); + +extern const char * step_to_string(unsigned int step); + +extern unsigned int +compute_fsl_memctl_config_regs(const memctl_options_t *popts, + fsl_ddr_cfg_regs_t *ddr, + const common_timing_params_t *common_dimm, + const dimm_params_t *dimm_parameters, + unsigned int dbw_capacity_adjust); +extern unsigned int +compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params, + common_timing_params_t *outpdimm, + unsigned int number_of_dimms); +extern unsigned int populate_memctl_options(int all_DIMMs_registered, + memctl_options_t *popts, + dimm_params_t *pdimm, + unsigned int ctrl_num); + +extern unsigned int mclk_to_picos(unsigned int mclk); +extern unsigned int get_memory_clk_period_ps(void); +extern unsigned int picos_to_mclk(unsigned int picos); + +#endif diff --git a/arch/ppc/cpu/mpc8xxx/ddr/ddr1_dimm_params.c b/arch/ppc/cpu/mpc8xxx/ddr/ddr1_dimm_params.c new file mode 100644 index 0000000..9184764 --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/ddr/ddr1_dimm_params.c @@ -0,0 +1,343 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#include <common.h> +#include <asm/fsl_ddr_sdram.h> + +#include "ddr.h" + +/* + * Calculate the Density of each Physical Rank. + * Returned size is in bytes. + * + * Study these table from Byte 31 of JEDEC SPD Spec. + * + * DDR I DDR II + * Bit Size Size + * --- ----- ------ + * 7 high 512MB 512MB + * 6 256MB 256MB + * 5 128MB 128MB + * 4 64MB 16GB + * 3 32MB 8GB + * 2 16MB 4GB + * 1 2GB 2GB + * 0 low 1GB 1GB + * + * Reorder Table to be linear by stripping the bottom + * 2 or 5 bits off and shifting them up to the top. + */ + +static unsigned long long +compute_ranksize(unsigned int mem_type, unsigned char row_dens) +{ + unsigned long long bsize; + + /* Bottom 2 bits up to the top. */ + bsize = ((row_dens >> 2) | ((row_dens & 3) << 6)); + bsize <<= 24ULL; + debug("DDR: DDR I rank density = 0x%08x\n", bsize); + + return bsize; +} + +/* + * Convert a two-nibble BCD value into a cycle time. + * While the spec calls for nano-seconds, picos are returned. + * + * This implements the tables for bytes 9, 23 and 25 for both + * DDR I and II. No allowance for distinguishing the invalid + * fields absent for DDR I yet present in DDR II is made. + * (That is, cycle times of .25, .33, .66 and .75 ns are + * allowed for both DDR II and I.) + */ +static unsigned int +convert_bcd_tenths_to_cycle_time_ps(unsigned int spd_val) +{ + /* Table look up the lower nibble, allow DDR I & II. */ + unsigned int tenths_ps[16] = { + 0, + 100, + 200, + 300, + 400, + 500, + 600, + 700, + 800, + 900, + 250, /* This and the next 3 entries valid ... */ + 330, /* ... only for tCK calculations. */ + 660, + 750, + 0, /* undefined */ + 0 /* undefined */ + }; + + unsigned int whole_ns = (spd_val & 0xF0) >> 4; + unsigned int tenth_ns = spd_val & 0x0F; + unsigned int ps = whole_ns * 1000 + tenths_ps[tenth_ns]; + + return ps; +} + +static unsigned int +convert_bcd_hundredths_to_cycle_time_ps(unsigned int spd_val) +{ + unsigned int tenth_ns = (spd_val & 0xF0) >> 4; + unsigned int hundredth_ns = spd_val & 0x0F; + unsigned int ps = tenth_ns * 100 + hundredth_ns * 10; + + return ps; +} + +static unsigned int byte40_table_ps[8] = { + 0, + 250, + 330, + 500, + 660, + 750, + 0, /* supposed to be RFC, but not sure what that means */ + 0 /* Undefined */ +}; + +static unsigned int +compute_trfc_ps_from_spd(unsigned char trctrfc_ext, unsigned char trfc) +{ + unsigned int trfc_ps; + + trfc_ps = (((trctrfc_ext & 0x1) * 256) + trfc) * 1000 + + byte40_table_ps[(trctrfc_ext >> 1) & 0x7]; + + return trfc_ps; +} + +static unsigned int +compute_trc_ps_from_spd(unsigned char trctrfc_ext, unsigned char trc) +{ + unsigned int trc_ps; + + trc_ps = trc * 1000 + byte40_table_ps[(trctrfc_ext >> 4) & 0x7]; + + return trc_ps; +} + +/* + * tCKmax from DDR I SPD Byte 43 + * + * Bits 7:2 == whole ns + * Bits 1:0 == quarter ns + * 00 == 0.00 ns + * 01 == 0.25 ns + * 10 == 0.50 ns + * 11 == 0.75 ns + * + * Returns picoseconds. + */ +static unsigned int +compute_tckmax_from_spd_ps(unsigned int byte43) +{ + return (byte43 >> 2) * 1000 + (byte43 & 0x3) * 250; +} + +/* + * Determine Refresh Rate. Ignore self refresh bit on DDR I. + * Table from SPD Spec, Byte 12, converted to picoseconds and + * filled in with "default" normal values. + */ +static unsigned int +determine_refresh_rate_ps(const unsigned int spd_refresh) +{ + unsigned int refresh_time_ps[8] = { + 15625000, /* 0 Normal 1.00x */ + 3900000, /* 1 Reduced .25x */ + 7800000, /* 2 Extended .50x */ + 31300000, /* 3 Extended 2.00x */ + 62500000, /* 4 Extended 4.00x */ + 125000000, /* 5 Extended 8.00x */ + 15625000, /* 6 Normal 1.00x filler */ + 15625000, /* 7 Normal 1.00x filler */ + }; + + return refresh_time_ps[spd_refresh & 0x7]; +} + +/* + * The purpose of this function is to compute a suitable + * CAS latency given the DRAM clock period. The SPD only + * defines at most 3 CAS latencies. Typically the slower in + * frequency the DIMM runs at, the shorter its CAS latency can be. + * If the DIMM is operating at a sufficiently low frequency, + * it may be able to run at a CAS latency shorter than the + * shortest SPD-defined CAS latency. + * + * If a CAS latency is not found, 0 is returned. + * + * Do this by finding in the standard speed bin table the longest + * tCKmin that doesn't exceed the value of mclk_ps (tCK). + * + * An assumption made is that the SDRAM device allows the + * CL to be programmed for a value that is lower than those + * advertised by the SPD. This is not always the case, + * as those modes not defined in the SPD are optional. + * + * CAS latency de-rating based upon values JEDEC Standard No. 79-E + * Table 11. + * + * ordinal 2, ddr1_speed_bins[1] contains tCK for CL=2 + */ + /* CL2.0 CL2.5 CL3.0 */ +unsigned short ddr1_speed_bins[] = {0, 7500, 6000, 5000 }; + +unsigned int +compute_derated_DDR1_CAS_latency(unsigned int mclk_ps) +{ + const unsigned int num_speed_bins = ARRAY_SIZE(ddr1_speed_bins); + unsigned int lowest_tCKmin_found = 0; + unsigned int lowest_tCKmin_CL = 0; + unsigned int i; + + debug("mclk_ps = %u\n", mclk_ps); + + for (i = 0; i < num_speed_bins; i++) { + unsigned int x = ddr1_speed_bins[i]; + debug("i=%u, x = %u, lowest_tCKmin_found = %u\n", + i, x, lowest_tCKmin_found); + if (x && lowest_tCKmin_found <= x && x <= mclk_ps) { + lowest_tCKmin_found = x; + lowest_tCKmin_CL = i + 1; + } + } + + debug("lowest_tCKmin_CL = %u\n", lowest_tCKmin_CL); + + return lowest_tCKmin_CL; +} + +/* + * ddr_compute_dimm_parameters for DDR1 SPD + * + * Compute DIMM parameters based upon the SPD information in spd. + * Writes the results to the dimm_params_t structure pointed by pdimm. + * + * FIXME: use #define for the retvals + */ +unsigned int +ddr_compute_dimm_parameters(const ddr1_spd_eeprom_t *spd, + dimm_params_t *pdimm, + unsigned int dimm_number) +{ + unsigned int retval; + + if (spd->mem_type) { + if (spd->mem_type != SPD_MEMTYPE_DDR) { + printf("DIMM %u: is not a DDR1 SPD.\n", dimm_number); + return 1; + } + } else { + memset(pdimm, 0, sizeof(dimm_params_t)); + return 1; + } + + retval = ddr1_spd_check(spd); + if (retval) { + printf("DIMM %u: failed checksum\n", dimm_number); + return 2; + } + + /* + * The part name in ASCII in the SPD EEPROM is not null terminated. + * Guarantee null termination here by presetting all bytes to 0 + * and copying the part name in ASCII from the SPD onto it + */ + memset(pdimm->mpart, 0, sizeof(pdimm->mpart)); + memcpy(pdimm->mpart, spd->mpart, sizeof(pdimm->mpart) - 1); + + /* DIMM organization parameters */ + pdimm->n_ranks = spd->nrows; + pdimm->rank_density = compute_ranksize(spd->mem_type, spd->bank_dens); + pdimm->capacity = pdimm->n_ranks * pdimm->rank_density; + pdimm->data_width = spd->dataw_lsb; + pdimm->primary_sdram_width = spd->primw; + pdimm->ec_sdram_width = spd->ecw; + + /* + * FIXME: Need to determine registered_dimm status. + * 1 == register buffered + * 0 == unbuffered + */ + pdimm->registered_dimm = 0; /* unbuffered */ + + /* SDRAM device parameters */ + pdimm->n_row_addr = spd->nrow_addr; + pdimm->n_col_addr = spd->ncol_addr; + pdimm->n_banks_per_sdram_device = spd->nbanks; + pdimm->edc_config = spd->config; + pdimm->burst_lengths_bitmask = spd->burstl; + pdimm->row_density = spd->bank_dens; + + /* + * Calculate the Maximum Data Rate based on the Minimum Cycle time. + * The SPD clk_cycle field (tCKmin) is measured in tenths of + * nanoseconds and represented as BCD. + */ + pdimm->tCKmin_X_ps + = convert_bcd_tenths_to_cycle_time_ps(spd->clk_cycle); + pdimm->tCKmin_X_minus_1_ps + = convert_bcd_tenths_to_cycle_time_ps(spd->clk_cycle2); + pdimm->tCKmin_X_minus_2_ps + = convert_bcd_tenths_to_cycle_time_ps(spd->clk_cycle3); + + pdimm->tCKmax_ps = compute_tckmax_from_spd_ps(spd->tckmax); + + /* + * Compute CAS latencies defined by SPD + * The SPD caslat_X should have at least 1 and at most 3 bits set. + * + * If cas_lat after masking is 0, the __ilog2 function returns + * 255 into the variable. This behavior is abused once. + */ + pdimm->caslat_X = __ilog2(spd->cas_lat); + pdimm->caslat_X_minus_1 = __ilog2(spd->cas_lat + & ~(1 << pdimm->caslat_X)); + pdimm->caslat_X_minus_2 = __ilog2(spd->cas_lat + & ~(1 << pdimm->caslat_X) + & ~(1 << pdimm->caslat_X_minus_1)); + + /* Compute CAS latencies below that defined by SPD */ + pdimm->caslat_lowest_derated + = compute_derated_DDR1_CAS_latency(get_memory_clk_period_ps()); + + /* Compute timing parameters */ + pdimm->tRCD_ps = spd->trcd * 250; + pdimm->tRP_ps = spd->trp * 250; + pdimm->tRAS_ps = spd->tras * 1000; + + pdimm->tWR_ps = mclk_to_picos(3); + pdimm->tWTR_ps = mclk_to_picos(1); + pdimm->tRFC_ps = compute_trfc_ps_from_spd(0, spd->trfc); + + pdimm->tRRD_ps = spd->trrd * 250; + pdimm->tRC_ps = compute_trc_ps_from_spd(0, spd->trc); + + pdimm->refresh_rate_ps = determine_refresh_rate_ps(spd->refresh); + + pdimm->tIS_ps = convert_bcd_hundredths_to_cycle_time_ps(spd->ca_setup); + pdimm->tIH_ps = convert_bcd_hundredths_to_cycle_time_ps(spd->ca_hold); + pdimm->tDS_ps + = convert_bcd_hundredths_to_cycle_time_ps(spd->data_setup); + pdimm->tDH_ps + = convert_bcd_hundredths_to_cycle_time_ps(spd->data_hold); + + pdimm->tRTP_ps = mclk_to_picos(2); /* By the book. */ + pdimm->tDQSQ_max_ps = spd->tdqsq * 10; + pdimm->tQHS_ps = spd->tqhs * 10; + + return 0; +} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/ddr2_dimm_params.c b/arch/ppc/cpu/mpc8xxx/ddr/ddr2_dimm_params.c new file mode 100644 index 0000000..d9d0fa7 --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/ddr/ddr2_dimm_params.c @@ -0,0 +1,339 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#include <common.h> +#include <asm/fsl_ddr_sdram.h> + +#include "ddr.h" +/* + * Calculate the Density of each Physical Rank. + * Returned size is in bytes. + * + * Study these table from Byte 31 of JEDEC SPD Spec. + * + * DDR I DDR II + * Bit Size Size + * --- ----- ------ + * 7 high 512MB 512MB + * 6 256MB 256MB + * 5 128MB 128MB + * 4 64MB 16GB + * 3 32MB 8GB + * 2 16MB 4GB + * 1 2GB 2GB + * 0 low 1GB 1GB + * + * Reorder Table to be linear by stripping the bottom + * 2 or 5 bits off and shifting them up to the top. + * + */ +static unsigned long long +compute_ranksize(unsigned int mem_type, unsigned char row_dens) +{ + unsigned long long bsize; + + /* Bottom 5 bits up to the top. */ + bsize = ((row_dens >> 5) | ((row_dens & 31) << 3)); + bsize <<= 27ULL; + debug("DDR: DDR II rank density = 0x%08x\n", bsize); + + return bsize; +} + +/* + * Convert a two-nibble BCD value into a cycle time. + * While the spec calls for nano-seconds, picos are returned. + * + * This implements the tables for bytes 9, 23 and 25 for both + * DDR I and II. No allowance for distinguishing the invalid + * fields absent for DDR I yet present in DDR II is made. + * (That is, cycle times of .25, .33, .66 and .75 ns are + * allowed for both DDR II and I.) + */ +static unsigned int +convert_bcd_tenths_to_cycle_time_ps(unsigned int spd_val) +{ + /* Table look up the lower nibble, allow DDR I & II. */ + unsigned int tenths_ps[16] = { + 0, + 100, + 200, + 300, + 400, + 500, + 600, + 700, + 800, + 900, + 250, /* This and the next 3 entries valid ... */ + 330, /* ... only for tCK calculations. */ + 660, + 750, + 0, /* undefined */ + 0 /* undefined */ + }; + + unsigned int whole_ns = (spd_val & 0xF0) >> 4; + unsigned int tenth_ns = spd_val & 0x0F; + unsigned int ps = whole_ns * 1000 + tenths_ps[tenth_ns]; + + return ps; +} + +static unsigned int +convert_bcd_hundredths_to_cycle_time_ps(unsigned int spd_val) +{ + unsigned int tenth_ns = (spd_val & 0xF0) >> 4; + unsigned int hundredth_ns = spd_val & 0x0F; + unsigned int ps = tenth_ns * 100 + hundredth_ns * 10; + + return ps; +} + +static unsigned int byte40_table_ps[8] = { + 0, + 250, + 330, + 500, + 660, + 750, + 0, /* supposed to be RFC, but not sure what that means */ + 0 /* Undefined */ +}; + +static unsigned int +compute_trfc_ps_from_spd(unsigned char trctrfc_ext, unsigned char trfc) +{ + unsigned int trfc_ps; + + trfc_ps = (((trctrfc_ext & 0x1) * 256) + trfc) * 1000 + + byte40_table_ps[(trctrfc_ext >> 1) & 0x7]; + + return trfc_ps; +} + +static unsigned int +compute_trc_ps_from_spd(unsigned char trctrfc_ext, unsigned char trc) +{ + unsigned int trc_ps; + + trc_ps = trc * 1000 + byte40_table_ps[(trctrfc_ext >> 4) & 0x7]; + + return trc_ps; +} + +/* + * Determine Refresh Rate. Ignore self refresh bit on DDR I. + * Table from SPD Spec, Byte 12, converted to picoseconds and + * filled in with "default" normal values. + */ +static unsigned int +determine_refresh_rate_ps(const unsigned int spd_refresh) +{ + unsigned int refresh_time_ps[8] = { + 15625000, /* 0 Normal 1.00x */ + 3900000, /* 1 Reduced .25x */ + 7800000, /* 2 Extended .50x */ + 31300000, /* 3 Extended 2.00x */ + 62500000, /* 4 Extended 4.00x */ + 125000000, /* 5 Extended 8.00x */ + 15625000, /* 6 Normal 1.00x filler */ + 15625000, /* 7 Normal 1.00x filler */ + }; + + return refresh_time_ps[spd_refresh & 0x7]; +} + +/* + * The purpose of this function is to compute a suitable + * CAS latency given the DRAM clock period. The SPD only + * defines at most 3 CAS latencies. Typically the slower in + * frequency the DIMM runs at, the shorter its CAS latency can. + * be. If the DIMM is operating at a sufficiently low frequency, + * it may be able to run at a CAS latency shorter than the + * shortest SPD-defined CAS latency. + * + * If a CAS latency is not found, 0 is returned. + * + * Do this by finding in the standard speed bin table the longest + * tCKmin that doesn't exceed the value of mclk_ps (tCK). + * + * An assumption made is that the SDRAM device allows the + * CL to be programmed for a value that is lower than those + * advertised by the SPD. This is not always the case, + * as those modes not defined in the SPD are optional. + * + * CAS latency de-rating based upon values JEDEC Standard No. 79-2C + * Table 40, "DDR2 SDRAM stanadard speed bins and tCK, tRCD, tRP, tRAS, + * and tRC for corresponding bin" + * + * ordinal 2, ddr2_speed_bins[1] contains tCK for CL=3 + * Not certain if any good value exists for CL=2 + */ + /* CL2 CL3 CL4 CL5 CL6 */ +unsigned short ddr2_speed_bins[] = { 0, 5000, 3750, 3000, 2500 }; + +unsigned int +compute_derated_DDR2_CAS_latency(unsigned int mclk_ps) +{ + const unsigned int num_speed_bins = ARRAY_SIZE(ddr2_speed_bins); + unsigned int lowest_tCKmin_found = 0; + unsigned int lowest_tCKmin_CL = 0; + unsigned int i; + + debug("mclk_ps = %u\n", mclk_ps); + + for (i = 0; i < num_speed_bins; i++) { + unsigned int x = ddr2_speed_bins[i]; + debug("i=%u, x = %u, lowest_tCKmin_found = %u\n", + i, x, lowest_tCKmin_found); + if (x && x <= mclk_ps && x >= lowest_tCKmin_found ) { + lowest_tCKmin_found = x; + lowest_tCKmin_CL = i + 2; + } + } + + debug("lowest_tCKmin_CL = %u\n", lowest_tCKmin_CL); + + return lowest_tCKmin_CL; +} + +/* + * ddr_compute_dimm_parameters for DDR2 SPD + * + * Compute DIMM parameters based upon the SPD information in spd. + * Writes the results to the dimm_params_t structure pointed by pdimm. + * + * FIXME: use #define for the retvals + */ +unsigned int +ddr_compute_dimm_parameters(const ddr2_spd_eeprom_t *spd, + dimm_params_t *pdimm, + unsigned int dimm_number) +{ + unsigned int retval; + + if (spd->mem_type) { + if (spd->mem_type != SPD_MEMTYPE_DDR2) { + printf("DIMM %u: is not a DDR2 SPD.\n", dimm_number); + return 1; + } + } else { + memset(pdimm, 0, sizeof(dimm_params_t)); + return 1; + } + + retval = ddr2_spd_check(spd); + if (retval) { + printf("DIMM %u: failed checksum\n", dimm_number); + return 2; + } + + /* + * The part name in ASCII in the SPD EEPROM is not null terminated. + * Guarantee null termination here by presetting all bytes to 0 + * and copying the part name in ASCII from the SPD onto it + */ + memset(pdimm->mpart, 0, sizeof(pdimm->mpart)); + memcpy(pdimm->mpart, spd->mpart, sizeof(pdimm->mpart) - 1); + + /* DIMM organization parameters */ + pdimm->n_ranks = (spd->mod_ranks & 0x7) + 1; + pdimm->rank_density = compute_ranksize(spd->mem_type, spd->rank_dens); + pdimm->capacity = pdimm->n_ranks * pdimm->rank_density; + pdimm->data_width = spd->dataw; + pdimm->primary_sdram_width = spd->primw; + pdimm->ec_sdram_width = spd->ecw; + + /* FIXME: what about registered SO-DIMM? */ + switch (spd->dimm_type) { + case 0x01: /* RDIMM */ + case 0x10: /* Mini-RDIMM */ + pdimm->registered_dimm = 1; /* register buffered */ + break; + + case 0x02: /* UDIMM */ + case 0x04: /* SO-DIMM */ + case 0x08: /* Micro-DIMM */ + case 0x20: /* Mini-UDIMM */ + pdimm->registered_dimm = 0; /* unbuffered */ + break; + + default: + printf("unknown dimm_type 0x%02X\n", spd->dimm_type); + return 1; + break; + } + + /* SDRAM device parameters */ + pdimm->n_row_addr = spd->nrow_addr; + pdimm->n_col_addr = spd->ncol_addr; + pdimm->n_banks_per_sdram_device = spd->nbanks; + pdimm->edc_config = spd->config; + pdimm->burst_lengths_bitmask = spd->burstl; + pdimm->row_density = spd->rank_dens; + + /* + * Calculate the Maximum Data Rate based on the Minimum Cycle time. + * The SPD clk_cycle field (tCKmin) is measured in tenths of + * nanoseconds and represented as BCD. + */ + pdimm->tCKmin_X_ps + = convert_bcd_tenths_to_cycle_time_ps(spd->clk_cycle); + pdimm->tCKmin_X_minus_1_ps + = convert_bcd_tenths_to_cycle_time_ps(spd->clk_cycle2); + pdimm->tCKmin_X_minus_2_ps + = convert_bcd_tenths_to_cycle_time_ps(spd->clk_cycle3); + + pdimm->tCKmax_ps = convert_bcd_tenths_to_cycle_time_ps(spd->tckmax); + + /* + * Compute CAS latencies defined by SPD + * The SPD caslat_X should have at least 1 and at most 3 bits set. + * + * If cas_lat after masking is 0, the __ilog2 function returns + * 255 into the variable. This behavior is abused once. + */ + pdimm->caslat_X = __ilog2(spd->cas_lat); + pdimm->caslat_X_minus_1 = __ilog2(spd->cas_lat + & ~(1 << pdimm->caslat_X)); + pdimm->caslat_X_minus_2 = __ilog2(spd->cas_lat + & ~(1 << pdimm->caslat_X) + & ~(1 << pdimm->caslat_X_minus_1)); + + /* Compute CAS latencies below that defined by SPD */ + pdimm->caslat_lowest_derated + = compute_derated_DDR2_CAS_latency(get_memory_clk_period_ps()); + + /* Compute timing parameters */ + pdimm->tRCD_ps = spd->trcd * 250; + pdimm->tRP_ps = spd->trp * 250; + pdimm->tRAS_ps = spd->tras * 1000; + + pdimm->tWR_ps = spd->twr * 250; + pdimm->tWTR_ps = spd->twtr * 250; + pdimm->tRFC_ps = compute_trfc_ps_from_spd(spd->trctrfc_ext, spd->trfc); + + pdimm->tRRD_ps = spd->trrd * 250; + pdimm->tRC_ps = compute_trc_ps_from_spd(spd->trctrfc_ext, spd->trc); + + pdimm->refresh_rate_ps = determine_refresh_rate_ps(spd->refresh); + + pdimm->tIS_ps = convert_bcd_hundredths_to_cycle_time_ps(spd->ca_setup); + pdimm->tIH_ps = convert_bcd_hundredths_to_cycle_time_ps(spd->ca_hold); + pdimm->tDS_ps + = convert_bcd_hundredths_to_cycle_time_ps(spd->data_setup); + pdimm->tDH_ps + = convert_bcd_hundredths_to_cycle_time_ps(spd->data_hold); + + pdimm->tRTP_ps = spd->trtp * 250; + pdimm->tDQSQ_max_ps = spd->tdqsq * 10; + pdimm->tQHS_ps = spd->tqhs * 10; + + return 0; +} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c b/arch/ppc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c new file mode 100644 index 0000000..d4199ba --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c @@ -0,0 +1,314 @@ +/* + * Copyright 2008-2009 Freescale Semiconductor, Inc. + * Dave Liu <daveliu@freescale.com> + * + * calculate the organization and timing parameter + * from ddr3 spd, please refer to the spec + * JEDEC standard No.21-C 4_01_02_11R18.pdf + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#include <common.h> +#include <asm/fsl_ddr_sdram.h> + +#include "ddr.h" + +/* + * Calculate the Density of each Physical Rank. + * Returned size is in bytes. + * + * each rank size = + * sdram capacity(bit) / 8 * primary bus width / sdram width + * + * where: sdram capacity = spd byte4[3:0] + * primary bus width = spd byte8[2:0] + * sdram width = spd byte7[2:0] + * + * SPD byte4 - sdram density and banks + * bit[3:0] size(bit) size(byte) + * 0000 256Mb 32MB + * 0001 512Mb 64MB + * 0010 1Gb 128MB + * 0011 2Gb 256MB + * 0100 4Gb 512MB + * 0101 8Gb 1GB + * 0110 16Gb 2GB + * + * SPD byte8 - module memory bus width + * bit[2:0] primary bus width + * 000 8bits + * 001 16bits + * 010 32bits + * 011 64bits + * + * SPD byte7 - module organiztion + * bit[2:0] sdram device width + * 000 4bits + * 001 8bits + * 010 16bits + * 011 32bits + * + */ +static unsigned long long +compute_ranksize(const ddr3_spd_eeprom_t *spd) +{ + unsigned long long bsize; + + int nbit_sdram_cap_bsize = 0; + int nbit_primary_bus_width = 0; + int nbit_sdram_width = 0; + + if ((spd->density_banks & 0xf) < 7) + nbit_sdram_cap_bsize = (spd->density_banks & 0xf) + 28; + if ((spd->bus_width & 0x7) < 4) + nbit_primary_bus_width = (spd->bus_width & 0x7) + 3; + if ((spd->organization & 0x7) < 4) + nbit_sdram_width = (spd->organization & 0x7) + 2; + + bsize = 1ULL << (nbit_sdram_cap_bsize - 3 + + nbit_primary_bus_width - nbit_sdram_width); + + debug("DDR: DDR III rank density = 0x%16lx\n", bsize); + + return bsize; +} + +/* + * ddr_compute_dimm_parameters for DDR3 SPD + * + * Compute DIMM parameters based upon the SPD information in spd. + * Writes the results to the dimm_params_t structure pointed by pdimm. + * + */ +unsigned int +ddr_compute_dimm_parameters(const ddr3_spd_eeprom_t *spd, + dimm_params_t *pdimm, + unsigned int dimm_number) +{ + unsigned int retval; + unsigned int mtb_ps; + + if (spd->mem_type) { + if (spd->mem_type != SPD_MEMTYPE_DDR3) { + printf("DIMM %u: is not a DDR3 SPD.\n", dimm_number); + return 1; + } + } else { + memset(pdimm, 0, sizeof(dimm_params_t)); + return 1; + } + + retval = ddr3_spd_check(spd); + if (retval) { + printf("DIMM %u: failed checksum\n", dimm_number); + return 2; + } + + /* + * The part name in ASCII in the SPD EEPROM is not null terminated. + * Guarantee null termination here by presetting all bytes to 0 + * and copying the part name in ASCII from the SPD onto it + */ + memset(pdimm->mpart, 0, sizeof(pdimm->mpart)); + memcpy(pdimm->mpart, spd->mpart, sizeof(pdimm->mpart) - 1); + + /* DIMM organization parameters */ + pdimm->n_ranks = ((spd->organization >> 3) & 0x7) + 1; + pdimm->rank_density = compute_ranksize(spd); + pdimm->capacity = pdimm->n_ranks * pdimm->rank_density; + pdimm->primary_sdram_width = 1 << (3 + (spd->bus_width & 0x7)); + if ((spd->bus_width >> 3) & 0x3) + pdimm->ec_sdram_width = 8; + else + pdimm->ec_sdram_width = 0; + pdimm->data_width = pdimm->primary_sdram_width + + pdimm->ec_sdram_width; + + switch (spd->module_type & 0xf) { + case 0x01: /* RDIMM */ + case 0x05: /* Mini-RDIMM */ + pdimm->registered_dimm = 1; /* register buffered */ + break; + + case 0x02: /* UDIMM */ + case 0x03: /* SO-DIMM */ + case 0x04: /* Micro-DIMM */ + case 0x06: /* Mini-UDIMM */ + pdimm->registered_dimm = 0; /* unbuffered */ + break; + + default: + printf("unknown dimm_type 0x%02X\n", spd->module_type); + return 1; + } + + /* SDRAM device parameters */ + pdimm->n_row_addr = ((spd->addressing >> 3) & 0x7) + 12; + pdimm->n_col_addr = (spd->addressing & 0x7) + 9; + pdimm->n_banks_per_sdram_device = 8 << ((spd->density_banks >> 4) & 0x7); + + /* + * The SPD spec has not the ECC bit, + * We consider the DIMM as ECC capability + * when the extension bus exist + */ + if (pdimm->ec_sdram_width) + pdimm->edc_config = 0x02; + else + pdimm->edc_config = 0x00; + + /* + * The SPD spec has not the burst length byte + * but DDR3 spec has nature BL8 and BC4, + * BL8 -bit3, BC4 -bit2 + */ + pdimm->burst_lengths_bitmask = 0x0c; + pdimm->row_density = __ilog2(pdimm->rank_density); + + /* MTB - medium timebase + * The unit in the SPD spec is ns, + * We convert it to ps. + * eg: MTB = 0.125ns (125ps) + */ + mtb_ps = (spd->mtb_dividend * 1000) /spd->mtb_divisor; + pdimm->mtb_ps = mtb_ps; + + /* + * sdram minimum cycle time + * we assume the MTB is 0.125ns + * eg: + * tCK_min=15 MTB (1.875ns) ->DDR3-1066 + * =12 MTB (1.5ns) ->DDR3-1333 + * =10 MTB (1.25ns) ->DDR3-1600 + */ + pdimm->tCKmin_X_ps = spd->tCK_min * mtb_ps; + + /* + * CAS latency supported + * bit4 - CL4 + * bit5 - CL5 + * bit18 - CL18 + */ + pdimm->caslat_X = ((spd->caslat_msb << 8) | spd->caslat_lsb) << 4; + + /* + * min CAS latency time + * eg: tAA_min = + * DDR3-800D 100 MTB (12.5ns) + * DDR3-1066F 105 MTB (13.125ns) + * DDR3-1333H 108 MTB (13.5ns) + * DDR3-1600H 90 MTB (11.25ns) + */ + pdimm->tAA_ps = spd->tAA_min * mtb_ps; + + /* + * min write recovery time + * eg: + * tWR_min = 120 MTB (15ns) -> all speed grades. + */ + pdimm->tWR_ps = spd->tWR_min * mtb_ps; + + /* + * min RAS to CAS delay time + * eg: tRCD_min = + * DDR3-800 100 MTB (12.5ns) + * DDR3-1066F 105 MTB (13.125ns) + * DDR3-1333H 108 MTB (13.5ns) + * DDR3-1600H 90 MTB (11.25) + */ + pdimm->tRCD_ps = spd->tRCD_min * mtb_ps; + + /* + * min row active to row active delay time + * eg: tRRD_min = + * DDR3-800(1KB page) 80 MTB (10ns) + * DDR3-1333(1KB page) 48 MTB (6ns) + */ + pdimm->tRRD_ps = spd->tRRD_min * mtb_ps; + + /* + * min row precharge delay time + * eg: tRP_min = + * DDR3-800D 100 MTB (12.5ns) + * DDR3-1066F 105 MTB (13.125ns) + * DDR3-1333H 108 MTB (13.5ns) + * DDR3-1600H 90 MTB (11.25ns) + */ + pdimm->tRP_ps = spd->tRP_min * mtb_ps; + + /* min active to precharge delay time + * eg: tRAS_min = + * DDR3-800D 300 MTB (37.5ns) + * DDR3-1066F 300 MTB (37.5ns) + * DDR3-1333H 288 MTB (36ns) + * DDR3-1600H 280 MTB (35ns) + */ + pdimm->tRAS_ps = (((spd->tRAS_tRC_ext & 0xf) << 8) | spd->tRAS_min_lsb) + * mtb_ps; + /* + * min active to actice/refresh delay time + * eg: tRC_min = + * DDR3-800D 400 MTB (50ns) + * DDR3-1066F 405 MTB (50.625ns) + * DDR3-1333H 396 MTB (49.5ns) + * DDR3-1600H 370 MTB (46.25ns) + */ + pdimm->tRC_ps = (((spd->tRAS_tRC_ext & 0xf0) << 4) | spd->tRC_min_lsb) + * mtb_ps; + /* + * min refresh recovery delay time + * eg: tRFC_min = + * 512Mb 720 MTB (90ns) + * 1Gb 880 MTB (110ns) + * 2Gb 1280 MTB (160ns) + */ + pdimm->tRFC_ps = ((spd->tRFC_min_msb << 8) | spd->tRFC_min_lsb) + * mtb_ps; + /* + * min internal write to read command delay time + * eg: tWTR_min = 40 MTB (7.5ns) - all speed bins. + * tWRT is at least 4 mclk independent of operating freq. + */ + pdimm->tWTR_ps = spd->tWTR_min * mtb_ps; + + /* + * min internal read to precharge command delay time + * eg: tRTP_min = 40 MTB (7.5ns) - all speed bins. + * tRTP is at least 4 mclk independent of operating freq. + */ + pdimm->tRTP_ps = spd->tRTP_min * mtb_ps; + + /* + * Average periodic refresh interval + * tREFI = 7.8 us at normal temperature range + * = 3.9 us at ext temperature range + */ + pdimm->refresh_rate_ps = 7800000; + + /* + * min four active window delay time + * eg: tFAW_min = + * DDR3-800(1KB page) 320 MTB (40ns) + * DDR3-1066(1KB page) 300 MTB (37.5ns) + * DDR3-1333(1KB page) 240 MTB (30ns) + * DDR3-1600(1KB page) 240 MTB (30ns) + */ + pdimm->tFAW_ps = (((spd->tFAW_msb & 0xf) << 8) | spd->tFAW_min) + * mtb_ps; + + /* + * We need check the address mirror for unbuffered DIMM + * If SPD indicate the address map mirror, The DDR controller + * need care it. + */ + if ((spd->module_type == SPD_MODULETYPE_UDIMM) || + (spd->module_type == SPD_MODULETYPE_SODIMM) || + (spd->module_type == SPD_MODULETYPE_MICRODIMM) || + (spd->module_type == SPD_MODULETYPE_MINIUDIMM)) + pdimm->mirrored_dimm = spd->mod_section.unbuffered.addr_mapping & 0x1; + + return 0; +} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c b/arch/ppc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c new file mode 100644 index 0000000..e888e3e --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c @@ -0,0 +1,468 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#include <common.h> +#include <asm/fsl_ddr_sdram.h> + +#include "ddr.h" + +unsigned int +compute_cas_latency_ddr3(const dimm_params_t *dimm_params, + common_timing_params_t *outpdimm, + unsigned int number_of_dimms) +{ + unsigned int i; + unsigned int tAAmin_ps = 0; + unsigned int tCKmin_X_ps = 0; + unsigned int common_caslat; + unsigned int caslat_actual; + unsigned int retry = 16; + unsigned int tmp; + const unsigned int mclk_ps = get_memory_clk_period_ps(); + + /* compute the common CAS latency supported between slots */ + tmp = dimm_params[0].caslat_X; + for (i = 1; i < number_of_dimms; i++) + tmp &= dimm_params[i].caslat_X; + common_caslat = tmp; + + /* compute the max tAAmin tCKmin between slots */ + for (i = 0; i < number_of_dimms; i++) { + tAAmin_ps = max(tAAmin_ps, dimm_params[i].tAA_ps); + tCKmin_X_ps = max(tCKmin_X_ps, dimm_params[i].tCKmin_X_ps); + } + /* validate if the memory clk is in the range of dimms */ + if (mclk_ps < tCKmin_X_ps) { + printf("The DIMM max tCKmin is %d ps," + "doesn't support the MCLK cycle %d ps\n", + tCKmin_X_ps, mclk_ps); + return 1; + } + /* determine the acutal cas latency */ + caslat_actual = (tAAmin_ps + mclk_ps - 1) / mclk_ps; + /* check if the dimms support the CAS latency */ + while (!(common_caslat & (1 << caslat_actual)) && retry > 0) { + caslat_actual++; + retry--; + } + /* once the caculation of caslat_actual is completed + * we must verify that this CAS latency value does not + * exceed tAAmax, which is 20 ns for all DDR3 speed grades + */ + if (caslat_actual * mclk_ps > 20000) { + printf("The choosen cas latency %d is too large\n", + caslat_actual); + return 1; + } + outpdimm->lowest_common_SPD_caslat = caslat_actual; + + return 0; +} + +/* + * compute_lowest_common_dimm_parameters() + * + * Determine the worst-case DIMM timing parameters from the set of DIMMs + * whose parameters have been computed into the array pointed to + * by dimm_params. + */ +unsigned int +compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params, + common_timing_params_t *outpdimm, + unsigned int number_of_dimms) +{ + unsigned int i; + + unsigned int tCKmin_X_ps = 0; + unsigned int tCKmax_ps = 0xFFFFFFFF; + unsigned int tCKmax_max_ps = 0; + unsigned int tRCD_ps = 0; + unsigned int tRP_ps = 0; + unsigned int tRAS_ps = 0; + unsigned int tWR_ps = 0; + unsigned int tWTR_ps = 0; + unsigned int tRFC_ps = 0; + unsigned int tRRD_ps = 0; + unsigned int tRC_ps = 0; + unsigned int refresh_rate_ps = 0; + unsigned int tIS_ps = 0; + unsigned int tIH_ps = 0; + unsigned int tDS_ps = 0; + unsigned int tDH_ps = 0; + unsigned int tRTP_ps = 0; + unsigned int tDQSQ_max_ps = 0; + unsigned int tQHS_ps = 0; + + unsigned int temp1, temp2; + unsigned int additive_latency = 0; +#if !defined(CONFIG_FSL_DDR3) + const unsigned int mclk_ps = get_memory_clk_period_ps(); + unsigned int lowest_good_caslat; + unsigned int not_ok; + + debug("using mclk_ps = %u\n", mclk_ps); +#endif + + temp1 = 0; + for (i = 0; i < number_of_dimms; i++) { + /* + * If there are no ranks on this DIMM, + * it probably doesn't exist, so skip it. + */ + if (dimm_params[i].n_ranks == 0) { + temp1++; + continue; + } + + /* + * Find minimum tCKmax_ps to find fastest slow speed, + * i.e., this is the slowest the whole system can go. + */ + tCKmax_ps = min(tCKmax_ps, dimm_params[i].tCKmax_ps); + + /* Either find maximum value to determine slowest + * speed, delay, time, period, etc */ + tCKmin_X_ps = max(tCKmin_X_ps, dimm_params[i].tCKmin_X_ps); + tCKmax_max_ps = max(tCKmax_max_ps, dimm_params[i].tCKmax_ps); + tRCD_ps = max(tRCD_ps, dimm_params[i].tRCD_ps); + tRP_ps = max(tRP_ps, dimm_params[i].tRP_ps); + tRAS_ps = max(tRAS_ps, dimm_params[i].tRAS_ps); + tWR_ps = max(tWR_ps, dimm_params[i].tWR_ps); + tWTR_ps = max(tWTR_ps, dimm_params[i].tWTR_ps); + tRFC_ps = max(tRFC_ps, dimm_params[i].tRFC_ps); + tRRD_ps = max(tRRD_ps, dimm_params[i].tRRD_ps); + tRC_ps = max(tRC_ps, dimm_params[i].tRC_ps); + tIS_ps = max(tIS_ps, dimm_params[i].tIS_ps); + tIH_ps = max(tIH_ps, dimm_params[i].tIH_ps); + tDS_ps = max(tDS_ps, dimm_params[i].tDS_ps); + tDH_ps = max(tDH_ps, dimm_params[i].tDH_ps); + tRTP_ps = max(tRTP_ps, dimm_params[i].tRTP_ps); + tQHS_ps = max(tQHS_ps, dimm_params[i].tQHS_ps); + refresh_rate_ps = max(refresh_rate_ps, + dimm_params[i].refresh_rate_ps); + + /* + * Find maximum tDQSQ_max_ps to find slowest. + * + * FIXME: is finding the slowest value the correct + * strategy for this parameter? + */ + tDQSQ_max_ps = max(tDQSQ_max_ps, dimm_params[i].tDQSQ_max_ps); + } + + outpdimm->ndimms_present = number_of_dimms - temp1; + + if (temp1 == number_of_dimms) { + debug("no dimms this memory controller\n"); + return 0; + } + + outpdimm->tCKmin_X_ps = tCKmin_X_ps; + outpdimm->tCKmax_ps = tCKmax_ps; + outpdimm->tCKmax_max_ps = tCKmax_max_ps; + outpdimm->tRCD_ps = tRCD_ps; + outpdimm->tRP_ps = tRP_ps; + outpdimm->tRAS_ps = tRAS_ps; + outpdimm->tWR_ps = tWR_ps; + outpdimm->tWTR_ps = tWTR_ps; + outpdimm->tRFC_ps = tRFC_ps; + outpdimm->tRRD_ps = tRRD_ps; + outpdimm->tRC_ps = tRC_ps; + outpdimm->refresh_rate_ps = refresh_rate_ps; + outpdimm->tIS_ps = tIS_ps; + outpdimm->tIH_ps = tIH_ps; + outpdimm->tDS_ps = tDS_ps; + outpdimm->tDH_ps = tDH_ps; + outpdimm->tRTP_ps = tRTP_ps; + outpdimm->tDQSQ_max_ps = tDQSQ_max_ps; + outpdimm->tQHS_ps = tQHS_ps; + + /* Determine common burst length for all DIMMs. */ + temp1 = 0xff; + for (i = 0; i < number_of_dimms; i++) { + if (dimm_params[i].n_ranks) { + temp1 &= dimm_params[i].burst_lengths_bitmask; + } + } + outpdimm->all_DIMMs_burst_lengths_bitmask = temp1; + + /* Determine if all DIMMs registered buffered. */ + temp1 = temp2 = 0; + for (i = 0; i < number_of_dimms; i++) { + if (dimm_params[i].n_ranks) { + if (dimm_params[i].registered_dimm) + temp1 = 1; + if (!dimm_params[i].registered_dimm) + temp2 = 1; + } + } + + outpdimm->all_DIMMs_registered = 0; + if (temp1 && !temp2) { + outpdimm->all_DIMMs_registered = 1; + } + + outpdimm->all_DIMMs_unbuffered = 0; + if (!temp1 && temp2) { + outpdimm->all_DIMMs_unbuffered = 1; + } + + /* CHECKME: */ + if (!outpdimm->all_DIMMs_registered + && !outpdimm->all_DIMMs_unbuffered) { + printf("ERROR: Mix of registered buffered and unbuffered " + "DIMMs detected!\n"); + } + +#if defined(CONFIG_FSL_DDR3) + if (compute_cas_latency_ddr3(dimm_params, outpdimm, number_of_dimms)) + return 1; +#else + /* + * Compute a CAS latency suitable for all DIMMs + * + * Strategy for SPD-defined latencies: compute only + * CAS latency defined by all DIMMs. + */ + + /* + * Step 1: find CAS latency common to all DIMMs using bitwise + * operation. + */ + temp1 = 0xFF; + for (i = 0; i < number_of_dimms; i++) { + if (dimm_params[i].n_ranks) { + temp2 = 0; + temp2 |= 1 << dimm_params[i].caslat_X; + temp2 |= 1 << dimm_params[i].caslat_X_minus_1; + temp2 |= 1 << dimm_params[i].caslat_X_minus_2; + /* + * FIXME: If there was no entry for X-2 (X-1) in + * the SPD, then caslat_X_minus_2 + * (caslat_X_minus_1) contains either 255 or + * 0xFFFFFFFF because that's what the glorious + * __ilog2 function returns for an input of 0. + * On 32-bit PowerPC, left shift counts with bit + * 26 set (that the value of 255 or 0xFFFFFFFF + * will have), cause the destination register to + * be 0. That is why this works. + */ + temp1 &= temp2; + } + } + + /* + * Step 2: check each common CAS latency against tCK of each + * DIMM's SPD. + */ + lowest_good_caslat = 0; + temp2 = 0; + while (temp1) { + not_ok = 0; + temp2 = __ilog2(temp1); + debug("checking common caslat = %u\n", temp2); + + /* Check if this CAS latency will work on all DIMMs at tCK. */ + for (i = 0; i < number_of_dimms; i++) { + if (!dimm_params[i].n_ranks) { + continue; + } + if (dimm_params[i].caslat_X == temp2) { + if (mclk_ps >= dimm_params[i].tCKmin_X_ps) { + debug("CL = %u ok on DIMM %u at tCK=%u" + " ps with its tCKmin_X_ps of %u\n", + temp2, i, mclk_ps, + dimm_params[i].tCKmin_X_ps); + continue; + } else { + not_ok++; + } + } + + if (dimm_params[i].caslat_X_minus_1 == temp2) { + unsigned int tCKmin_X_minus_1_ps + = dimm_params[i].tCKmin_X_minus_1_ps; + if (mclk_ps >= tCKmin_X_minus_1_ps) { + debug("CL = %u ok on DIMM %u at " + "tCK=%u ps with its " + "tCKmin_X_minus_1_ps of %u\n", + temp2, i, mclk_ps, + tCKmin_X_minus_1_ps); + continue; + } else { + not_ok++; + } + } + + if (dimm_params[i].caslat_X_minus_2 == temp2) { + unsigned int tCKmin_X_minus_2_ps + = dimm_params[i].tCKmin_X_minus_2_ps; + if (mclk_ps >= tCKmin_X_minus_2_ps) { + debug("CL = %u ok on DIMM %u at " + "tCK=%u ps with its " + "tCKmin_X_minus_2_ps of %u\n", + temp2, i, mclk_ps, + tCKmin_X_minus_2_ps); + continue; + } else { + not_ok++; + } + } + } + + if (!not_ok) { + lowest_good_caslat = temp2; + } + + temp1 &= ~(1 << temp2); + } + + debug("lowest common SPD-defined CAS latency = %u\n", + lowest_good_caslat); + outpdimm->lowest_common_SPD_caslat = lowest_good_caslat; + + + /* + * Compute a common 'de-rated' CAS latency. + * + * The strategy here is to find the *highest* dereated cas latency + * with the assumption that all of the DIMMs will support a dereated + * CAS latency higher than or equal to their lowest dereated value. + */ + temp1 = 0; + for (i = 0; i < number_of_dimms; i++) { + temp1 = max(temp1, dimm_params[i].caslat_lowest_derated); + } + outpdimm->highest_common_derated_caslat = temp1; + debug("highest common dereated CAS latency = %u\n", temp1); +#endif /* #if defined(CONFIG_FSL_DDR3) */ + + /* Determine if all DIMMs ECC capable. */ + temp1 = 1; + for (i = 0; i < number_of_dimms; i++) { + if (dimm_params[i].n_ranks && dimm_params[i].edc_config != 2) { + temp1 = 0; + break; + } + } + if (temp1) { + debug("all DIMMs ECC capable\n"); + } else { + debug("Warning: not all DIMMs ECC capable, cant enable ECC\n"); + } + outpdimm->all_DIMMs_ECC_capable = temp1; + +#ifndef CONFIG_FSL_DDR3 + /* FIXME: move to somewhere else to validate. */ + if (mclk_ps > tCKmax_max_ps) { + printf("Warning: some of the installed DIMMs " + "can not operate this slowly.\n"); + return 1; + } +#endif + /* + * Compute additive latency. + * + * For DDR1, additive latency should be 0. + * + * For DDR2, with ODT enabled, use "a value" less than ACTTORW, + * which comes from Trcd, and also note that: + * add_lat + caslat must be >= 4 + * + * For DDR3, we use the AL=0 + * + * When to use additive latency for DDR2: + * + * I. Because you are using CL=3 and need to do ODT on writes and + * want functionality. + * 1. Are you going to use ODT? (Does your board not have + * additional termination circuitry for DQ, DQS, DQS_, + * DM, RDQS, RDQS_ for x4/x8 configs?) + * 2. If so, is your lowest supported CL going to be 3? + * 3. If so, then you must set AL=1 because + * + * WL >= 3 for ODT on writes + * RL = AL + CL + * WL = RL - 1 + * -> + * WL = AL + CL - 1 + * AL + CL - 1 >= 3 + * AL + CL >= 4 + * QED + * + * RL >= 3 for ODT on reads + * RL = AL + CL + * + * Since CL aren't usually less than 2, AL=0 is a minimum, + * so the WL-derived AL should be the -- FIXME? + * + * II. Because you are using auto-precharge globally and want to + * use additive latency (posted CAS) to get more bandwidth. + * 1. Are you going to use auto-precharge mode globally? + * + * Use addtivie latency and compute AL to be 1 cycle less than + * tRCD, i.e. the READ or WRITE command is in the cycle + * immediately following the ACTIVATE command.. + * + * III. Because you feel like it or want to do some sort of + * degraded-performance experiment. + * 1. Do you just want to use additive latency because you feel + * like it? + * + * Validation: AL is less than tRCD, and within the other + * read-to-precharge constraints. + */ + + additive_latency = 0; + +#if defined(CONFIG_FSL_DDR2) + if (lowest_good_caslat < 4) { + additive_latency = picos_to_mclk(tRCD_ps) - lowest_good_caslat; + if (mclk_to_picos(additive_latency) > tRCD_ps) { + additive_latency = picos_to_mclk(tRCD_ps); + debug("setting additive_latency to %u because it was " + " greater than tRCD_ps\n", additive_latency); + } + } + +#elif defined(CONFIG_FSL_DDR3) + /* + * The system will not use the global auto-precharge mode. + * However, it uses the page mode, so we set AL=0 + */ + additive_latency = 0; +#endif + + /* + * Validate additive latency + * FIXME: move to somewhere else to validate + * + * AL <= tRCD(min) + */ + if (mclk_to_picos(additive_latency) > tRCD_ps) { + printf("Error: invalid additive latency exceeds tRCD(min).\n"); + return 1; + } + + /* + * RL = CL + AL; RL >= 3 for ODT_RD_CFG to be enabled + * WL = RL - 1; WL >= 3 for ODT_WL_CFG to be enabled + * ADD_LAT (the register) must be set to a value less + * than ACTTORW if WL = 1, then AL must be set to 1 + * RD_TO_PRE (the register) must be set to a minimum + * tRTP + AL if AL is nonzero + */ + + /* + * Additive latency will be applied only if the memctl option to + * use it. + */ + outpdimm->additive_latency = additive_latency; + + return 0; +} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/main.c b/arch/ppc/cpu/mpc8xxx/ddr/main.c new file mode 100644 index 0000000..faa1af9 --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/ddr/main.c @@ -0,0 +1,479 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +/* + * Generic driver for Freescale DDR/DDR2/DDR3 memory controller. + * Based on code from spd_sdram.c + * Author: James Yang [at freescale.com] + */ + +#include <common.h> +#include <asm/fsl_ddr_sdram.h> + +#include "ddr.h" + +extern void fsl_ddr_set_lawbar( + const common_timing_params_t *memctl_common_params, + unsigned int memctl_interleaved, + unsigned int ctrl_num); + +/* processor specific function */ +extern void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, + unsigned int ctrl_num); + +/* Board-specific functions defined in each board's ddr.c */ +extern void fsl_ddr_get_spd(generic_spd_eeprom_t *ctrl_dimms_spd, + unsigned int ctrl_num); + +/* + * ASSUMPTIONS: + * - Same number of CONFIG_DIMM_SLOTS_PER_CTLR on each controller + * - Same memory data bus width on all controllers + * + * NOTES: + * + * The memory controller and associated documentation use confusing + * terminology when referring to the orgranization of DRAM. + * + * Here is a terminology translation table: + * + * memory controller/documention |industry |this code |signals + * -------------------------------|-----------|-----------|----------------- + * physical bank/bank |rank |rank |chip select (CS) + * logical bank/sub-bank |bank |bank |bank address (BA) + * page/row |row |page |row address + * ??? |column |column |column address + * + * The naming confusion is further exacerbated by the descriptions of the + * memory controller interleaving feature, where accesses are interleaved + * _BETWEEN_ two seperate memory controllers. This is configured only in + * CS0_CONFIG[INTLV_CTL] of each memory controller. + * + * memory controller documentation | number of chip selects + * | per memory controller supported + * --------------------------------|----------------------------------------- + * cache line interleaving | 1 (CS0 only) + * page interleaving | 1 (CS0 only) + * bank interleaving | 1 (CS0 only) + * superbank interleraving | depends on bank (chip select) + * | interleraving [rank interleaving] + * | mode used on every memory controller + * + * Even further confusing is the existence of the interleaving feature + * _WITHIN_ each memory controller. The feature is referred to in + * documentation as chip select interleaving or bank interleaving, + * although it is configured in the DDR_SDRAM_CFG field. + * + * Name of field | documentation name | this code + * -----------------------------|-----------------------|------------------ + * DDR_SDRAM_CFG[BA_INTLV_CTL] | Bank (chip select) | rank interleaving + * | interleaving + */ + +#ifdef DEBUG +const char *step_string_tbl[] = { + "STEP_GET_SPD", + "STEP_COMPUTE_DIMM_PARMS", + "STEP_COMPUTE_COMMON_PARMS", + "STEP_GATHER_OPTS", + "STEP_ASSIGN_ADDRESSES", + "STEP_COMPUTE_REGS", + "STEP_PROGRAM_REGS", + "STEP_ALL" +}; + +const char * step_to_string(unsigned int step) { + + unsigned int s = __ilog2(step); + + if ((1 << s) != step) + return step_string_tbl[7]; + + return step_string_tbl[s]; +} +#endif + +int step_assign_addresses(fsl_ddr_info_t *pinfo, + unsigned int dbw_cap_adj[], + unsigned int *memctl_interleaving, + unsigned int *rank_interleaving) +{ + int i, j; + + /* + * If a reduced data width is requested, but the SPD + * specifies a physically wider device, adjust the + * computed dimm capacities accordingly before + * assigning addresses. + */ + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + unsigned int found = 0; + + switch (pinfo->memctl_opts[i].data_bus_width) { + case 2: + /* 16-bit */ + printf("can't handle 16-bit mode yet\n"); + break; + + case 1: + /* 32-bit */ + for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { + unsigned int dw; + dw = pinfo->dimm_params[i][j].data_width; + if (pinfo->dimm_params[i][j].n_ranks + && (dw == 72 || dw == 64)) { + /* + * FIXME: can't really do it + * like this because this just + * further reduces the memory + */ + found = 1; + break; + } + } + if (found) { + dbw_cap_adj[i] = 1; + } + break; + + case 0: + /* 64-bit */ + break; + + default: + printf("unexpected data bus width " + "specified controller %u\n", i); + return 1; + } + } + + /* + * Check if all controllers are configured for memory + * controller interleaving. + */ + j = 0; + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (pinfo->memctl_opts[i].memctl_interleaving) { + j++; + } + } + if (j == 2) + *memctl_interleaving = 1; + + /* Check that all controllers are rank interleaving. */ + j = 0; + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (pinfo->memctl_opts[i].ba_intlv_ctl) { + j++; + } + } + if (j == 2) + *rank_interleaving = 1; + + if (*memctl_interleaving) { + unsigned long long addr, total_mem_per_ctlr = 0; + /* + * If interleaving between memory controllers, + * make each controller start at a base address + * of 0. + * + * Also, if bank interleaving (chip select + * interleaving) is enabled on each memory + * controller, CS0 needs to be programmed to + * cover the entire memory range on that memory + * controller + * + * Bank interleaving also implies that each + * addressed chip select is identical in size. + */ + + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + addr = 0; + pinfo->common_timing_params[i].base_address = 0ull; + for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { + unsigned long long cap + = pinfo->dimm_params[i][j].capacity; + + pinfo->dimm_params[i][j].base_address = addr; + addr += cap >> dbw_cap_adj[i]; + total_mem_per_ctlr += cap >> dbw_cap_adj[i]; + } + } + pinfo->common_timing_params[0].total_mem = total_mem_per_ctlr; + } else { + /* + * Simple linear assignment if memory + * controllers are not interleaved. + */ + unsigned long long cur_memsize = 0; + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + u64 total_mem_per_ctlr = 0; + pinfo->common_timing_params[i].base_address = + cur_memsize; + for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { + /* Compute DIMM base addresses. */ + unsigned long long cap = + pinfo->dimm_params[i][j].capacity; + pinfo->dimm_params[i][j].base_address = + cur_memsize; + cur_memsize += cap >> dbw_cap_adj[i]; + total_mem_per_ctlr += cap >> dbw_cap_adj[i]; + } + pinfo->common_timing_params[i].total_mem = + total_mem_per_ctlr; + } + } + + return 0; +} + +unsigned long long +fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step) +{ + unsigned int i, j; + unsigned int all_controllers_memctl_interleaving = 0; + unsigned int all_controllers_rank_interleaving = 0; + unsigned long long total_mem = 0; + + fsl_ddr_cfg_regs_t *ddr_reg = pinfo->fsl_ddr_config_reg; + common_timing_params_t *timing_params = pinfo->common_timing_params; + + /* data bus width capacity adjust shift amount */ + unsigned int dbw_capacity_adjust[CONFIG_NUM_DDR_CONTROLLERS]; + + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + dbw_capacity_adjust[i] = 0; + } + + debug("starting at step %u (%s)\n", + start_step, step_to_string(start_step)); + + switch (start_step) { + case STEP_GET_SPD: + /* STEP 1: Gather all DIMM SPD data */ + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + fsl_ddr_get_spd(pinfo->spd_installed_dimms[i], i); + } + + case STEP_COMPUTE_DIMM_PARMS: + /* STEP 2: Compute DIMM parameters from SPD data */ + + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { + unsigned int retval; + generic_spd_eeprom_t *spd = + &(pinfo->spd_installed_dimms[i][j]); + dimm_params_t *pdimm = + &(pinfo->dimm_params[i][j]); + + retval = compute_dimm_parameters(spd, pdimm, i); + if (retval == 2) { + printf("Error: compute_dimm_parameters" + " non-zero returned FATAL value " + "for memctl=%u dimm=%u\n", i, j); + return 0; + } + if (retval) { + debug("Warning: compute_dimm_parameters" + " non-zero return value for memctl=%u " + "dimm=%u\n", i, j); + } + } + } + + case STEP_COMPUTE_COMMON_PARMS: + /* + * STEP 3: Compute a common set of timing parameters + * suitable for all of the DIMMs on each memory controller + */ + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + debug("Computing lowest common DIMM" + " parameters for memctl=%u\n", i); + compute_lowest_common_dimm_parameters( + pinfo->dimm_params[i], + &timing_params[i], + CONFIG_DIMM_SLOTS_PER_CTLR); + } + + case STEP_GATHER_OPTS: + /* STEP 4: Gather configuration requirements from user */ + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + debug("Reloading memory controller " + "configuration options for memctl=%u\n", i); + /* + * This "reloads" the memory controller options + * to defaults. If the user "edits" an option, + * next_step points to the step after this, + * which is currently STEP_ASSIGN_ADDRESSES. + */ + populate_memctl_options( + timing_params[i].all_DIMMs_registered, + &pinfo->memctl_opts[i], + pinfo->dimm_params[i], i); + } + + case STEP_ASSIGN_ADDRESSES: + /* STEP 5: Assign addresses to chip selects */ + step_assign_addresses(pinfo, + dbw_capacity_adjust, + &all_controllers_memctl_interleaving, + &all_controllers_rank_interleaving); + + case STEP_COMPUTE_REGS: + /* STEP 6: compute controller register values */ + debug("FSL Memory ctrl cg register computation\n"); + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (timing_params[i].ndimms_present == 0) { + memset(&ddr_reg[i], 0, + sizeof(fsl_ddr_cfg_regs_t)); + continue; + } + + compute_fsl_memctl_config_regs( + &pinfo->memctl_opts[i], + &ddr_reg[i], &timing_params[i], + pinfo->dimm_params[i], + dbw_capacity_adjust[i]); + } + + default: + break; + } + + /* Compute the total amount of memory. */ + + /* + * If bank interleaving but NOT memory controller interleaving + * CS_BNDS describe the quantity of memory on each memory + * controller, so the total is the sum across. + */ + if (!all_controllers_memctl_interleaving + && all_controllers_rank_interleaving) { + total_mem = 0; + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + total_mem += timing_params[i].total_mem; + } + + } else { + /* + * Compute the amount of memory available just by + * looking for the highest valid CSn_BNDS value. + * This allows us to also experiment with using + * only CS0 when using dual-rank DIMMs. + */ + unsigned int max_end = 0; + + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + for (j = 0; j < CONFIG_CHIP_SELECTS_PER_CTRL; j++) { + fsl_ddr_cfg_regs_t *reg = &ddr_reg[i]; + if (reg->cs[j].config & 0x80000000) { + unsigned int end; + end = reg->cs[j].bnds & 0xFFF; + if (end > max_end) { + max_end = end; + } + } + } + } + + total_mem = 1 + (((unsigned long long)max_end << 24ULL) + | 0xFFFFFFULL); + } + + return total_mem; +} + +/* + * fsl_ddr_sdram() -- this is the main function to be called by + * initdram() in the board file. + * + * It returns amount of memory configured in bytes. + */ +phys_size_t fsl_ddr_sdram(void) +{ + unsigned int i; + unsigned int memctl_interleaved; + unsigned long long total_memory; + fsl_ddr_info_t info; + + /* Reset info structure. */ + memset(&info, 0, sizeof(fsl_ddr_info_t)); + + /* Compute it once normally. */ + total_memory = fsl_ddr_compute(&info, STEP_GET_SPD); + + /* Check for memory controller interleaving. */ + memctl_interleaved = 0; + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + memctl_interleaved += + info.memctl_opts[i].memctl_interleaving; + } + + if (memctl_interleaved) { + if (memctl_interleaved == CONFIG_NUM_DDR_CONTROLLERS) { + debug("memctl interleaving\n"); + /* + * Change the meaning of memctl_interleaved + * to be "boolean". + */ + memctl_interleaved = 1; + } else { + printf("Warning: memctl interleaving not " + "properly configured on all controllers\n"); + memctl_interleaved = 0; + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) + info.memctl_opts[i].memctl_interleaving = 0; + debug("Recomputing with memctl_interleaving off.\n"); + total_memory = fsl_ddr_compute(&info, + STEP_ASSIGN_ADDRESSES); + } + } + + /* Program configuration registers. */ + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + debug("Programming controller %u\n", i); + if (info.common_timing_params[i].ndimms_present == 0) { + debug("No dimms present on controller %u; " + "skipping programming\n", i); + continue; + } + + fsl_ddr_set_memctl_regs(&(info.fsl_ddr_config_reg[i]), i); + } + + if (memctl_interleaved) { + const unsigned int ctrl_num = 0; + + /* Only set LAWBAR1 if memory controller interleaving is on. */ + fsl_ddr_set_lawbar(&info.common_timing_params[0], + memctl_interleaved, ctrl_num); + } else { + /* + * Memory controller interleaving is NOT on; + * set each lawbar individually. + */ + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + fsl_ddr_set_lawbar(&info.common_timing_params[i], + 0, i); + } + } + + debug("total_memory = %llu\n", total_memory); + +#if !defined(CONFIG_PHYS_64BIT) + /* Check for 4G or more. Bad. */ + if (total_memory >= (1ull << 32)) { + printf("Detected %lld MB of memory\n", total_memory >> 20); + printf("This U-Boot only supports < 4G of DDR\n"); + printf("You could rebuild it with CONFIG_PHYS_64BIT\n"); + total_memory = CONFIG_MAX_MEM_MAPPED; + } +#endif + + return total_memory; +} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/options.c b/arch/ppc/cpu/mpc8xxx/ddr/options.c new file mode 100644 index 0000000..46731c8 --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/ddr/options.c @@ -0,0 +1,297 @@ +/* + * Copyright 2008, 2010 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include <common.h> +#include <asm/fsl_ddr_sdram.h> + +#include "ddr.h" + +/* Board-specific functions defined in each board's ddr.c */ +extern void fsl_ddr_board_options(memctl_options_t *popts, + dimm_params_t *pdimm, + unsigned int ctrl_num); + +unsigned int populate_memctl_options(int all_DIMMs_registered, + memctl_options_t *popts, + dimm_params_t *pdimm, + unsigned int ctrl_num) +{ + unsigned int i; + const char *p; + + /* Chip select options. */ + + /* Pick chip-select local options. */ + for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { + /* If not DDR2, odt_rd_cfg and odt_wr_cfg need to be 0. */ + + /* only for single CS? */ + popts->cs_local_opts[i].odt_rd_cfg = 0; + + popts->cs_local_opts[i].odt_wr_cfg = 1; + popts->cs_local_opts[i].auto_precharge = 0; + } + + /* Pick interleaving mode. */ + + /* + * 0 = no interleaving + * 1 = interleaving between 2 controllers + */ + popts->memctl_interleaving = 0; + + /* + * 0 = cacheline + * 1 = page + * 2 = (logical) bank + * 3 = superbank (only if CS interleaving is enabled) + */ + popts->memctl_interleaving_mode = 0; + + /* + * 0: cacheline: bit 30 of the 36-bit physical addr selects the memctl + * 1: page: bit to the left of the column bits selects the memctl + * 2: bank: bit to the left of the bank bits selects the memctl + * 3: superbank: bit to the left of the chip select selects the memctl + * + * NOTE: ba_intlv (rank interleaving) is independent of memory + * controller interleaving; it is only within a memory controller. + * Must use superbank interleaving if rank interleaving is used and + * memory controller interleaving is enabled. + */ + + /* + * 0 = no + * 0x40 = CS0,CS1 + * 0x20 = CS2,CS3 + * 0x60 = CS0,CS1 + CS2,CS3 + * 0x04 = CS0,CS1,CS2,CS3 + */ + popts->ba_intlv_ctl = 0; + + /* Memory Organization Parameters */ + popts->registered_dimm_en = all_DIMMs_registered; + + /* Operational Mode Paramters */ + + /* Pick ECC modes */ +#ifdef CONFIG_DDR_ECC + popts->ECC_mode = 1; /* 0 = disabled, 1 = enabled */ +#else + popts->ECC_mode = 0; /* 0 = disabled, 1 = enabled */ +#endif + popts->ECC_init_using_memctl = 1; /* 0 = use DMA, 1 = use memctl */ + + /* + * Choose DQS config + * 0 for DDR1 + * 1 for DDR2 + */ +#if defined(CONFIG_FSL_DDR1) + popts->DQS_config = 0; +#elif defined(CONFIG_FSL_DDR2) || defined(CONFIG_FSL_DDR3) + popts->DQS_config = 1; +#endif + + /* Choose self-refresh during sleep. */ + popts->self_refresh_in_sleep = 1; + + /* Choose dynamic power management mode. */ + popts->dynamic_power = 0; + + /* 0 = 64-bit, 1 = 32-bit, 2 = 16-bit */ + popts->data_bus_width = 0; + + /* Choose burst length. */ +#if defined(CONFIG_FSL_DDR3) +#if defined(CONFIG_E500MC) + popts->OTF_burst_chop_en = 0; /* on-the-fly burst chop disable */ + popts->burst_length = DDR_BL8; /* Fixed 8-beat burst len */ +#else + popts->OTF_burst_chop_en = 1; /* on-the-fly burst chop */ + popts->burst_length = DDR_OTF; /* on-the-fly BC4 and BL8 */ +#endif +#else + popts->burst_length = DDR_BL4; /* has to be 4 for DDR2 */ +#endif + + /* Choose ddr controller address mirror mode */ +#if defined(CONFIG_FSL_DDR3) + popts->mirrored_dimm = pdimm[0].mirrored_dimm; +#endif + + /* Global Timing Parameters. */ + debug("mclk_ps = %u ps\n", get_memory_clk_period_ps()); + + /* Pick a caslat override. */ + popts->cas_latency_override = 0; + popts->cas_latency_override_value = 3; + if (popts->cas_latency_override) { + debug("using caslat override value = %u\n", + popts->cas_latency_override_value); + } + + /* Decide whether to use the computed derated latency */ + popts->use_derated_caslat = 0; + + /* Choose an additive latency. */ + popts->additive_latency_override = 0; + popts->additive_latency_override_value = 3; + if (popts->additive_latency_override) { + debug("using additive latency override value = %u\n", + popts->additive_latency_override_value); + } + + /* + * 2T_EN setting + * + * Factors to consider for 2T_EN: + * - number of DIMMs installed + * - number of components, number of active ranks + * - how much time you want to spend playing around + */ + popts->twoT_en = 0; + popts->threeT_en = 0; + + /* + * BSTTOPRE precharge interval + * + * Set this to 0 for global auto precharge + * + * FIXME: Should this be configured in picoseconds? + * Why it should be in ps: better understanding of this + * relative to actual DRAM timing parameters such as tRAS. + * e.g. tRAS(min) = 40 ns + */ + popts->bstopre = 0x100; + + /* Minimum CKE pulse width -- tCKE(MIN) */ + popts->tCKE_clock_pulse_width_ps + = mclk_to_picos(FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR); + + /* + * Window for four activates -- tFAW + * + * FIXME: UM: applies only to DDR2/DDR3 with eight logical banks only + * FIXME: varies depending upon number of column addresses or data + * FIXME: width, was considering looking at pdimm->primary_sdram_width + */ +#if defined(CONFIG_FSL_DDR1) + popts->tFAW_window_four_activates_ps = mclk_to_picos(1); + +#elif defined(CONFIG_FSL_DDR2) + /* + * x4/x8; some datasheets have 35000 + * x16 wide columns only? Use 50000? + */ + popts->tFAW_window_four_activates_ps = 37500; + +#elif defined(CONFIG_FSL_DDR3) + popts->tFAW_window_four_activates_ps = pdimm[0].tFAW_ps; +#endif + popts->zq_en = 0; + popts->wrlvl_en = 0; +#if defined(CONFIG_FSL_DDR3) + /* + * due to ddr3 dimm is fly-by topology + * we suggest to enable write leveling to + * meet the tQDSS under different loading. + */ + popts->wrlvl_en = 1; + popts->wrlvl_override = 0; +#endif + + /* + * Check interleaving configuration from environment. + * Please refer to doc/README.fsl-ddr for the detail. + * + * If memory controller interleaving is enabled, then the data + * bus widths must be programmed identically for the 2 memory + * controllers. + * + * XXX: Attempt to set both controllers to the same chip select + * interleaving mode. It will do a best effort to get the + * requested ranks interleaved together such that the result + * should be a subset of the requested configuration. + */ +#if (CONFIG_NUM_DDR_CONTROLLERS > 1) + if ((p = getenv("memctl_intlv_ctl")) != NULL) { + if (pdimm[0].n_ranks == 0) { + printf("There is no rank on CS0. Because only rank on " + "CS0 and ranks chip-select interleaved with CS0" + " are controller interleaved, force non memory " + "controller interleaving\n"); + popts->memctl_interleaving = 0; + } else { + popts->memctl_interleaving = 1; + if (strcmp(p, "cacheline") == 0) + popts->memctl_interleaving_mode = + FSL_DDR_CACHE_LINE_INTERLEAVING; + else if (strcmp(p, "page") == 0) + popts->memctl_interleaving_mode = + FSL_DDR_PAGE_INTERLEAVING; + else if (strcmp(p, "bank") == 0) + popts->memctl_interleaving_mode = + FSL_DDR_BANK_INTERLEAVING; + else if (strcmp(p, "superbank") == 0) + popts->memctl_interleaving_mode = + FSL_DDR_SUPERBANK_INTERLEAVING; + else + popts->memctl_interleaving_mode = + simple_strtoul(p, NULL, 0); + } + } +#endif + + if( ((p = getenv("ba_intlv_ctl")) != NULL) && + (CONFIG_CHIP_SELECTS_PER_CTRL > 1)) { + if (strcmp(p, "cs0_cs1") == 0) + popts->ba_intlv_ctl = FSL_DDR_CS0_CS1; + else if (strcmp(p, "cs2_cs3") == 0) + popts->ba_intlv_ctl = FSL_DDR_CS2_CS3; + else if (strcmp(p, "cs0_cs1_and_cs2_cs3") == 0) + popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_AND_CS2_CS3; + else if (strcmp(p, "cs0_cs1_cs2_cs3") == 0) + popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_CS2_CS3; + else + popts->ba_intlv_ctl = simple_strtoul(p, NULL, 0); + + switch (popts->ba_intlv_ctl & FSL_DDR_CS0_CS1_CS2_CS3) { + case FSL_DDR_CS0_CS1_CS2_CS3: + case FSL_DDR_CS0_CS1: + if (pdimm[0].n_ranks != 2) { + popts->ba_intlv_ctl = 0; + printf("Not enough bank(chip-select) for " + "CS0+CS1, force non-interleaving!\n"); + } + break; + case FSL_DDR_CS2_CS3: + if (pdimm[1].n_ranks !=2){ + popts->ba_intlv_ctl = 0; + printf("Not enough bank(CS) for CS2+CS3, " + "force non-interleaving!\n"); + } + break; + case FSL_DDR_CS0_CS1_AND_CS2_CS3: + if ((pdimm[0].n_ranks != 2)||(pdimm[1].n_ranks != 2)) { + popts->ba_intlv_ctl = 0; + printf("Not enough bank(CS) for CS0+CS1 or " + "CS2+CS3, force non-interleaving!\n"); + } + break; + default: + popts->ba_intlv_ctl = 0; + break; + } + } + + fsl_ddr_board_options(popts, pdimm, ctrl_num); + + return 0; +} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/util.c b/arch/ppc/cpu/mpc8xxx/ddr/util.c new file mode 100644 index 0000000..1e2d921 --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/ddr/util.c @@ -0,0 +1,206 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#include <common.h> +#include <asm/fsl_law.h> + +#include "ddr.h" + +unsigned int fsl_ddr_get_mem_data_rate(void); + +/* + * Round mclk_ps to nearest 10 ps in memory controller code. + * + * If an imprecise data rate is too high due to rounding error + * propagation, compute a suitably rounded mclk_ps to compute + * a working memory controller configuration. + */ +unsigned int get_memory_clk_period_ps(void) +{ + unsigned int mclk_ps; + + mclk_ps = 2000000000000ULL / fsl_ddr_get_mem_data_rate(); + /* round to nearest 10 ps */ + return 10 * ((mclk_ps + 5) / 10); +} + +/* Convert picoseconds into DRAM clock cycles (rounding up if needed). */ +unsigned int picos_to_mclk(unsigned int picos) +{ + const unsigned long long ULL_2e12 = 2000000000000ULL; + const unsigned long long ULL_8Fs = 0xFFFFFFFFULL; + unsigned long long clks; + unsigned long long clks_temp; + + if (!picos) + return 0; + + clks = fsl_ddr_get_mem_data_rate() * (unsigned long long) picos; + clks_temp = clks; + clks = clks / ULL_2e12; + if (clks_temp % ULL_2e12) { + clks++; + } + + if (clks > ULL_8Fs) { + clks = ULL_8Fs; + } + + return (unsigned int) clks; +} + +unsigned int mclk_to_picos(unsigned int mclk) +{ + return get_memory_clk_period_ps() * mclk; +} + +void +__fsl_ddr_set_lawbar(const common_timing_params_t *memctl_common_params, + unsigned int memctl_interleaved, + unsigned int ctrl_num) +{ + unsigned long long base = memctl_common_params->base_address; + unsigned long long size = memctl_common_params->total_mem; + + /* + * If no DIMMs on this controller, do not proceed any further. + */ + if (!memctl_common_params->ndimms_present) { + return; + } + +#if !defined(CONFIG_PHYS_64BIT) + if (base >= CONFIG_MAX_MEM_MAPPED) + return; + if ((base + size) >= CONFIG_MAX_MEM_MAPPED) + size = CONFIG_MAX_MEM_MAPPED - base; +#endif + + if (ctrl_num == 0) { + /* + * Set up LAW for DDR controller 1 space. + */ + unsigned int lawbar1_target_id = memctl_interleaved + ? LAW_TRGT_IF_DDR_INTRLV : LAW_TRGT_IF_DDR_1; + + if (set_ddr_laws(base, size, lawbar1_target_id) < 0) { + printf("%s: ERROR (ctrl #0, intrlv=%d)\n", __func__, + memctl_interleaved); + return ; + } + } else if (ctrl_num == 1) { + if (set_ddr_laws(base, size, LAW_TRGT_IF_DDR_2) < 0) { + printf("%s: ERROR (ctrl #1)\n", __func__); + return ; + } + } else { + printf("%s: unexpected DDR controller number (%u)\n", __func__, + ctrl_num); + } +} + +__attribute__((weak, alias("__fsl_ddr_set_lawbar"))) void +fsl_ddr_set_lawbar(const common_timing_params_t *memctl_common_params, + unsigned int memctl_interleaved, + unsigned int ctrl_num); + +void board_add_ram_info(int use_default) +{ +#if defined(CONFIG_MPC85xx) + volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR); +#elif defined(CONFIG_MPC86xx) + volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC86xx_DDR_ADDR); +#endif +#if (CONFIG_NUM_DDR_CONTROLLERS > 1) + uint32_t cs0_config = in_be32(&ddr->cs0_config); +#endif + uint32_t sdram_cfg = in_be32(&ddr->sdram_cfg); + int cas_lat; + + puts(" (DDR"); + switch ((sdram_cfg & SDRAM_CFG_SDRAM_TYPE_MASK) >> + SDRAM_CFG_SDRAM_TYPE_SHIFT) { + case SDRAM_TYPE_DDR1: + puts("1"); + break; + case SDRAM_TYPE_DDR2: + puts("2"); + break; + case SDRAM_TYPE_DDR3: + puts("3"); + break; + default: + puts("?"); + break; + } + + if (sdram_cfg & SDRAM_CFG_32_BE) + puts(", 32-bit"); + else + puts(", 64-bit"); + + /* Calculate CAS latency based on timing cfg values */ + cas_lat = ((in_be32(&ddr->timing_cfg_1) >> 16) & 0xf) + 1; + if ((in_be32(&ddr->timing_cfg_3) >> 12) & 1) + cas_lat += (8 << 1); + printf(", CL=%d", cas_lat >> 1); + if (cas_lat & 0x1) + puts(".5"); + + if (sdram_cfg & SDRAM_CFG_ECC_EN) + puts(", ECC on)"); + else + puts(", ECC off)"); + +#if (CONFIG_NUM_DDR_CONTROLLERS > 1) + if (cs0_config & 0x20000000) { + puts("\n"); + puts(" DDR Controller Interleaving Mode: "); + + switch ((cs0_config >> 24) & 0xf) { + case FSL_DDR_CACHE_LINE_INTERLEAVING: + puts("cache line"); + break; + case FSL_DDR_PAGE_INTERLEAVING: + puts("page"); + break; + case FSL_DDR_BANK_INTERLEAVING: + puts("bank"); + break; + case FSL_DDR_SUPERBANK_INTERLEAVING: + puts("super-bank"); + break; + default: + puts("invalid"); + break; + } + } +#endif + + if ((sdram_cfg >> 8) & 0x7f) { + puts("\n"); + puts(" DDR Chip-Select Interleaving Mode: "); + switch(sdram_cfg >> 8 & 0x7f) { + case FSL_DDR_CS0_CS1_CS2_CS3: + puts("CS0+CS1+CS2+CS3"); + break; + case FSL_DDR_CS0_CS1: + puts("CS0+CS1"); + break; + case FSL_DDR_CS2_CS3: + puts("CS2+CS3"); + break; + case FSL_DDR_CS0_CS1_AND_CS2_CS3: + puts("CS0+CS1 and CS2+CS3"); + break; + default: + puts("invalid"); + break; + } + } +} diff --git a/arch/ppc/cpu/mpc8xxx/fdt.c b/arch/ppc/cpu/mpc8xxx/fdt.c new file mode 100644 index 0000000..e68d6f3 --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/fdt.c @@ -0,0 +1,55 @@ +/* + * Copyright 2009 Freescale Semiconductor, Inc. + * + * This file is derived from arch/ppc/cpu/mpc85xx/cpu.c and + * arch/ppc/cpu/mpc86xx/cpu.c. Basically this file contains + * cpu specific common code for 85xx/86xx processors. + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <libfdt.h> +#include <fdt_support.h> + +void ft_fixup_num_cores(void *blob) { + int off, num_cores, del_cores; + + del_cores = 0; + num_cores = cpu_numcores(); + + off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); + while (off != -FDT_ERR_NOTFOUND) { + u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); + + /* if we find a cpu node outside of what we expect delete it + * and reset the offset back to the start since we can't + * trust the offsets anymore + */ + if (*reg > num_cores-1) { + fdt_del_node(blob, off); + del_cores++; + off = -1; + } + off = fdt_node_offset_by_prop_value(blob, off, + "device_type", "cpu", 4); + } + debug ("%x core system found\n", num_cores); + debug ("deleted %d extra core entry entries from device tree\n", + del_cores); +} diff --git a/arch/ppc/cpu/mpc8xxx/pci_cfg.c b/arch/ppc/cpu/mpc8xxx/pci_cfg.c new file mode 100644 index 0000000..9b7181d --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/pci_cfg.c @@ -0,0 +1,214 @@ +/* + * Copyright 2009-2010 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/fsl_law.h> +#include <pci.h> + +struct pci_info { + u32 cfg; +}; + +/* The cfg field is a bit mask in which each bit represents the value of + * cfg_IO_ports[] signal and the bit is set if the interface would be + * enabled based on the value of cfg_IO_ports[] signal + * + * On MPC86xx/PQ3 based systems: + * we extract cfg_IO_ports from GUTS register PORDEVSR + * + * cfg_IO_ports only exist on systems w/PCIe (we set cfg 0 for systems + * without PCIe) + */ + +#if defined(CONFIG_MPC8540) || defined(CONFIG_MPC8560) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI] = { + .cfg = 0, + }, +}; +#elif defined(CONFIG_MPC8541) || defined(CONFIG_MPC8555) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI] = { + .cfg = 0, + }, +}; +#elif defined(CONFIG_MPC8536) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI] = { + .cfg = 0, + }, + [LAW_TRGT_IF_PCIE_1] = { + .cfg = (1 << 2) | (1 << 3) | (1 << 5) | (1 << 7), + }, + [LAW_TRGT_IF_PCIE_2] = { + .cfg = (1 << 5) | (1 << 7), + }, + [LAW_TRGT_IF_PCIE_3] = { + .cfg = (1 << 7), + }, +}; +#elif defined(CONFIG_MPC8544) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI] = { + .cfg = 0, + }, + [LAW_TRGT_IF_PCIE_1] = { + .cfg = (1 << 2) | (1 << 3) | (1 << 4) | (1 << 5) | + (1 << 6) | (1 << 7), + }, + [LAW_TRGT_IF_PCIE_2] = { + .cfg = (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7), + }, + [LAW_TRGT_IF_PCIE_3] = { + .cfg = (1 << 6) | (1 << 7), + }, +}; +#elif defined(CONFIG_MPC8548) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI_1] = { + .cfg = 0, + }, + [LAW_TRGT_IF_PCI_2] = { + .cfg = 0, + }, + /* PCI_2 is always host and we dont use iosel to determine enable/disable */ + [LAW_TRGT_IF_PCIE_1] = { + .cfg = (1 << 3) | (1 << 4) | (1 << 7), + }, +}; +#elif defined(CONFIG_MPC8568) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI] = { + .cfg = 0, + }, + [LAW_TRGT_IF_PCIE_1] = { + .cfg = (1 << 3) | (1 << 4) | (1 << 7), + }, +}; +#elif defined(CONFIG_MPC8569) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCIE_1] = { + .cfg = (1 << 0) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7) | + (1 << 8) | (1 << 0xc) | (1 << 0xf), + }, +}; +#elif defined(CONFIG_MPC8572) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCIE_1] = { + .cfg = (1 << 2) | (1 << 3) | (1 << 7) | + (1 << 0xb) | (1 << 0xc) | (1 << 0xf), + }, + [LAW_TRGT_IF_PCIE_2] = { + .cfg = (1 << 3) | (1 << 7), + }, + [LAW_TRGT_IF_PCIE_3] = { + .cfg = (1 << 7), + }, +}; +#elif defined(CONFIG_MPC8610) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI_1] = { + .cfg = 0, + }, + [LAW_TRGT_IF_PCIE_1] = { + .cfg = (1 << 1) | (1 << 4), + }, + [LAW_TRGT_IF_PCIE_2] = { + .cfg = (1 << 0) | (1 << 4), + }, +}; +#elif defined(CONFIG_MPC8641) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCIE_1] = { + .cfg = (1 << 2) | (1 << 3) | (1 << 5) | (1 << 6) | + (1 << 7) | (1 << 0xe) | (1 << 0xf), + }, +}; +#elif defined(CONFIG_P1011) || defined(CONFIG_P1020) || \ + defined(CONFIG_P1012) || defined(CONFIG_P1021) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCIE_1] = { + .cfg = (1 << 0) | (1 << 6) | (1 << 0xe) | (1 << 0xf), + }, + [LAW_TRGT_IF_PCIE_2] = { + .cfg = (1 << 0xe), + }, +}; +#elif defined(CONFIG_P1013) || defined(CONFIG_P1022) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCIE_1] = { + .cfg = (1 << 6) | (1 << 7) | (1 << 9) | (1 << 0xa) | + (1 << 0xb) | (1 << 0xd) | (1 << 0xe) | + (1 << 0xf) | (1 << 0x15) | (1 << 0x16) | + (1 << 0x17) | (1 << 0x18) | (1 << 0x19) | + (1 << 0x1a) | (1 << 0x1b) | (1 << 0x1c) | + (1 << 0x1d) | (1 << 0x1e) | (1 << 0x1f), + }, + [LAW_TRGT_IF_PCIE_2] = { + .cfg = (1 << 0) | (1 << 1) | (1 << 6) | (1 << 7) | + (1 << 9) | (1 << 0xa) | (1 << 0xb) | (1 << 0xd) | + (1 << 0x15) | (1 << 0x16) | (1 << 0x17) | + (1 << 0x18) | (1 << 0x1c), + }, + [LAW_TRGT_IF_PCIE_3] = { + .cfg = (1 << 6) | (1 << 7) | (1 << 9) | (1 << 0xd) | + (1 << 0x15) | (1 << 0x16) | (1 << 0x17) | (1 << 0x18) | + (1 << 0x19) | (1 << 0x1a) | (1 << 0x1b), + }, +}; +#elif defined(CONFIG_P2010) || defined(CONFIG_P2020) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCIE_1] = { + .cfg = (1 << 0) | (1 << 2) | (1 << 4) | (1 << 6) | + (1 << 0xd) | (1 << 0xe) | (1 << 0xf), + }, + [LAW_TRGT_IF_PCIE_2] = { + .cfg = (1 << 2) | (1 << 0xe), + }, + [LAW_TRGT_IF_PCIE_3] = { + .cfg = (1 << 2) | (1 << 4), + }, +}; +#elif defined(CONFIG_FSL_CORENET) +#else +#error Need to define pci_config_info for processor +#endif + +#ifndef CONFIG_FSL_CORENET +int is_fsl_pci_cfg(enum law_trgt_if trgt, u32 io_sel) +{ + return ((1 << io_sel) & pci_config_info[trgt].cfg); +} +#endif diff --git a/arch/ppc/cpu/ppc4xx/40x_spd_sdram.c b/arch/ppc/cpu/ppc4xx/40x_spd_sdram.c new file mode 100644 index 0000000..595d568 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/40x_spd_sdram.c @@ -0,0 +1,464 @@ +/* + * arch/ppc/cpu/ppc4xx/40x_spd_sdram.c + * This SPD SDRAM detection code supports IBM/AMCC PPC44x cpu with a + * SDRAM controller. Those are all current 405 PPC's. + * + * (C) Copyright 2001 + * Bill Hunter, Wave 7 Optics, williamhunter@attbi.com + * + * Based on code by: + * + * Kenneth Johansson ,Ericsson AB. + * kenneth.johansson@etx.ericsson.se + * + * hacked up by bill hunter. fixed so we could run before + * serial_init and console_init. previous version avoided this by + * running out of cache memory during serial/console init, then running + * this code later. + * + * (C) Copyright 2002 + * Jun Gu, Artesyn Technology, jung@artesyncp.com + * Support for AMCC 440 based on OpenBIOS draminit.c from IBM. + * + * (C) Copyright 2005 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/processor.h> +#include <i2c.h> +#include <ppc4xx.h> + +#if defined(CONFIG_SPD_EEPROM) && !defined(CONFIG_440) + +/* + * Set default values + */ +#ifndef CONFIG_SYS_I2C_SPEED +#define CONFIG_SYS_I2C_SPEED 50000 +#endif + +#define ONE_BILLION 1000000000 + +#define SDRAM0_CFG_DCE 0x80000000 +#define SDRAM0_CFG_SRE 0x40000000 +#define SDRAM0_CFG_PME 0x20000000 +#define SDRAM0_CFG_MEMCHK 0x10000000 +#define SDRAM0_CFG_REGEN 0x08000000 +#define SDRAM0_CFG_ECCDD 0x00400000 +#define SDRAM0_CFG_EMDULR 0x00200000 +#define SDRAM0_CFG_DRW_SHIFT (31-6) +#define SDRAM0_CFG_BRPF_SHIFT (31-8) + +#define SDRAM0_TR_CASL_SHIFT (31-8) +#define SDRAM0_TR_PTA_SHIFT (31-13) +#define SDRAM0_TR_CTP_SHIFT (31-15) +#define SDRAM0_TR_LDF_SHIFT (31-17) +#define SDRAM0_TR_RFTA_SHIFT (31-29) +#define SDRAM0_TR_RCD_SHIFT (31-31) + +#define SDRAM0_RTR_SHIFT (31-15) +#define SDRAM0_ECCCFG_SHIFT (31-11) + +/* SDRAM0_CFG enable macro */ +#define SDRAM0_CFG_BRPF(x) ( ( x & 0x3)<< SDRAM0_CFG_BRPF_SHIFT ) + +#define SDRAM0_BXCR_SZ_MASK 0x000e0000 +#define SDRAM0_BXCR_AM_MASK 0x0000e000 + +#define SDRAM0_BXCR_SZ_SHIFT (31-14) +#define SDRAM0_BXCR_AM_SHIFT (31-18) + +#define SDRAM0_BXCR_SZ(x) ( (( x << SDRAM0_BXCR_SZ_SHIFT) & SDRAM0_BXCR_SZ_MASK) ) +#define SDRAM0_BXCR_AM(x) ( (( x << SDRAM0_BXCR_AM_SHIFT) & SDRAM0_BXCR_AM_MASK) ) + +#ifdef CONFIG_SPDDRAM_SILENT +# define SPD_ERR(x) do { return 0; } while (0) +#else +# define SPD_ERR(x) do { printf(x); return(0); } while (0) +#endif + +#define sdram_HZ_to_ns(hertz) (1000000000/(hertz)) + +/* function prototypes */ +int spd_read(uint addr); + + +/* + * This function is reading data from the DIMM module EEPROM over the SPD bus + * and uses that to program the sdram controller. + * + * This works on boards that has the same schematics that the AMCC walnut has. + * + * Input: null for default I2C spd functions or a pointer to a custom function + * returning spd_data. + */ + +long int spd_sdram(int(read_spd)(uint addr)) +{ + int tmp,row,col; + int total_size,bank_size,bank_code; + int ecc_on; + int mode; + int bank_cnt; + + int sdram0_pmit=0x07c00000; +#ifndef CONFIG_405EP /* not on PPC405EP */ + int sdram0_besr0 = -1; + int sdram0_besr1 = -1; + int sdram0_eccesr = -1; +#endif + int sdram0_ecccfg; + + int sdram0_rtr=0; + int sdram0_tr=0; + + int sdram0_b0cr; + int sdram0_b1cr; + int sdram0_b2cr; + int sdram0_b3cr; + + int sdram0_cfg=0; + + int t_rp; + int t_rcd; + int t_ras; + int t_rc; + int min_cas; + + PPC4xx_SYS_INFO sys_info; + unsigned long bus_period_x_10; + + /* + * get the board info + */ + get_sys_info(&sys_info); + bus_period_x_10 = ONE_BILLION / (sys_info.freqPLB / 10); + + if (read_spd == 0){ + read_spd=spd_read; + /* + * Make sure I2C controller is initialized + * before continuing. + */ + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + } + + /* Make shure we are using SDRAM */ + if (read_spd(2) != 0x04) { + SPD_ERR("SDRAM - non SDRAM memory module found\n"); + } + + /* ------------------------------------------------------------------ + * configure memory timing register + * + * data from DIMM: + * 27 IN Row Precharge Time ( t RP) + * 29 MIN RAS to CAS Delay ( t RCD) + * 127 Component and Clock Detail ,clk0-clk3, junction temp, CAS + * -------------------------------------------------------------------*/ + + /* + * first figure out which cas latency mode to use + * use the min supported mode + */ + + tmp = read_spd(127) & 0x6; + if (tmp == 0x02) { /* only cas = 2 supported */ + min_cas = 2; +/* t_ck = read_spd(9); */ +/* t_ac = read_spd(10); */ + } else if (tmp == 0x04) { /* only cas = 3 supported */ + min_cas = 3; +/* t_ck = read_spd(9); */ +/* t_ac = read_spd(10); */ + } else if (tmp == 0x06) { /* 2,3 supported, so use 2 */ + min_cas = 2; +/* t_ck = read_spd(23); */ +/* t_ac = read_spd(24); */ + } else { + SPD_ERR("SDRAM - unsupported CAS latency \n"); + } + + /* get some timing values, t_rp,t_rcd,t_ras,t_rc + */ + t_rp = read_spd(27); + t_rcd = read_spd(29); + t_ras = read_spd(30); + t_rc = t_ras + t_rp; + + /* The following timing calcs subtract 1 before deviding. + * this has effect of using ceiling instead of floor rounding, + * and also subtracting 1 to convert number to reg value + */ + /* set up CASL */ + sdram0_tr = (min_cas - 1) << SDRAM0_TR_CASL_SHIFT; + /* set up PTA */ + sdram0_tr |= ((((t_rp - 1) * 10)/bus_period_x_10) & 0x3) << SDRAM0_TR_PTA_SHIFT; + /* set up CTP */ + tmp = (((t_rc - t_rcd - t_rp -1) * 10) / bus_period_x_10) & 0x3; + if (tmp < 1) + tmp = 1; + sdram0_tr |= tmp << SDRAM0_TR_CTP_SHIFT; + /* set LDF = 2 cycles, reg value = 1 */ + sdram0_tr |= 1 << SDRAM0_TR_LDF_SHIFT; + /* set RFTA = t_rfc/bus_period, use t_rfc = t_rc */ + tmp = (((t_rc - 1) * 10) / bus_period_x_10) - 3; + if (tmp < 0) + tmp = 0; + if (tmp > 6) + tmp = 6; + sdram0_tr |= tmp << SDRAM0_TR_RFTA_SHIFT; + /* set RCD = t_rcd/bus_period*/ + sdram0_tr |= ((((t_rcd - 1) * 10) / bus_period_x_10) &0x3) << SDRAM0_TR_RCD_SHIFT ; + + + /*------------------------------------------------------------------ + * configure RTR register + * -------------------------------------------------------------------*/ + row = read_spd(3); + col = read_spd(4); + tmp = read_spd(12) & 0x7f ; /* refresh type less self refresh bit */ + switch (tmp) { + case 0x00: + tmp = 15625; + break; + case 0x01: + tmp = 15625 / 4; + break; + case 0x02: + tmp = 15625 / 2; + break; + case 0x03: + tmp = 15625 * 2; + break; + case 0x04: + tmp = 15625 * 4; + break; + case 0x05: + tmp = 15625 * 8; + break; + default: + SPD_ERR("SDRAM - Bad refresh period \n"); + } + /* convert from nsec to bus cycles */ + tmp = (tmp * 10) / bus_period_x_10; + sdram0_rtr = (tmp & 0x3ff8) << SDRAM0_RTR_SHIFT; + + /*------------------------------------------------------------------ + * determine the number of banks used + * -------------------------------------------------------------------*/ + /* byte 7:6 is module data width */ + if (read_spd(7) != 0) + SPD_ERR("SDRAM - unsupported module width\n"); + tmp = read_spd(6); + if (tmp < 32) + SPD_ERR("SDRAM - unsupported module width\n"); + else if (tmp < 64) + bank_cnt = 1; /* one bank per sdram side */ + else if (tmp < 73) + bank_cnt = 2; /* need two banks per side */ + else if (tmp < 161) + bank_cnt = 4; /* need four banks per side */ + else + SPD_ERR("SDRAM - unsupported module width\n"); + + /* byte 5 is the module row count (refered to as dimm "sides") */ + tmp = read_spd(5); + if (tmp == 1) + ; + else if (tmp==2) + bank_cnt *= 2; + else if (tmp==4) + bank_cnt *= 4; + else + bank_cnt = 8; /* 8 is an error code */ + + if (bank_cnt > 4) /* we only have 4 banks to work with */ + SPD_ERR("SDRAM - unsupported module rows for this width\n"); + + /* now check for ECC ability of module. We only support ECC + * on 32 bit wide devices with 8 bit ECC. + */ + if ((read_spd(11)==2) && (read_spd(6)==40) && (read_spd(14)==8)) { + sdram0_ecccfg = 0xf << SDRAM0_ECCCFG_SHIFT; + ecc_on = 1; + } else { + sdram0_ecccfg = 0; + ecc_on = 0; + } + + /*------------------------------------------------------------------ + * calculate total size + * -------------------------------------------------------------------*/ + /* calculate total size and do sanity check */ + tmp = read_spd(31); + total_size = 1 << 22; /* total_size = 4MB */ + /* now multiply 4M by the smallest device row density */ + /* note that we don't support asymetric rows */ + while (((tmp & 0x0001) == 0) && (tmp != 0)) { + total_size = total_size << 1; + tmp = tmp >> 1; + } + total_size *= read_spd(5); /* mult by module rows (dimm sides) */ + + /*------------------------------------------------------------------ + * map rows * cols * banks to a mode + * -------------------------------------------------------------------*/ + + switch (row) { + case 11: + switch (col) { + case 8: + mode=4; /* mode 5 */ + break; + case 9: + case 10: + mode=0; /* mode 1 */ + break; + default: + SPD_ERR("SDRAM - unsupported mode\n"); + } + break; + case 12: + switch (col) { + case 8: + mode=3; /* mode 4 */ + break; + case 9: + case 10: + mode=1; /* mode 2 */ + break; + default: + SPD_ERR("SDRAM - unsupported mode\n"); + } + break; + case 13: + switch (col) { + case 8: + mode=5; /* mode 6 */ + break; + case 9: + case 10: + if (read_spd(17) == 2) + mode = 6; /* mode 7 */ + else + mode = 2; /* mode 3 */ + break; + case 11: + mode = 2; /* mode 3 */ + break; + default: + SPD_ERR("SDRAM - unsupported mode\n"); + } + break; + default: + SPD_ERR("SDRAM - unsupported mode\n"); + } + + /*------------------------------------------------------------------ + * using the calculated values, compute the bank + * config register values. + * -------------------------------------------------------------------*/ + sdram0_b1cr = 0; + sdram0_b2cr = 0; + sdram0_b3cr = 0; + + /* compute the size of each bank */ + bank_size = total_size / bank_cnt; + /* convert bank size to bank size code for ppc4xx + by takeing log2(bank_size) - 22 */ + tmp = bank_size; /* start with tmp = bank_size */ + bank_code = 0; /* and bank_code = 0 */ + while (tmp > 1) { /* this takes log2 of tmp */ + bank_code++; /* and stores result in bank_code */ + tmp = tmp >> 1; + } /* bank_code is now log2(bank_size) */ + bank_code -= 22; /* subtract 22 to get the code */ + + tmp = SDRAM0_BXCR_SZ(bank_code) | SDRAM0_BXCR_AM(mode) | 1; + sdram0_b0cr = (bank_size * 0) | tmp; +#ifndef CONFIG_405EP /* not on PPC405EP */ + if (bank_cnt > 1) + sdram0_b2cr = (bank_size * 1) | tmp; + if (bank_cnt > 2) + sdram0_b1cr = (bank_size * 2) | tmp; + if (bank_cnt > 3) + sdram0_b3cr = (bank_size * 3) | tmp; +#else + /* PPC405EP chip only supports two SDRAM banks */ + if (bank_cnt > 1) + sdram0_b1cr = (bank_size * 1) | tmp; + if (bank_cnt > 2) + total_size = 2 * bank_size; +#endif + + /* + * enable sdram controller DCE=1 + * enable burst read prefetch to 32 bytes BRPF=2 + * leave other functions off + */ + + /*------------------------------------------------------------------ + * now that we've done our calculations, we are ready to + * program all the registers. + * -------------------------------------------------------------------*/ + + /* disable memcontroller so updates work */ + mtsdram(SDRAM0_CFG, 0); + +#ifndef CONFIG_405EP /* not on PPC405EP */ + mtsdram(SDRAM0_BESR0, sdram0_besr0); + mtsdram(SDRAM0_BESR1, sdram0_besr1); + mtsdram(SDRAM0_ECCCFG, sdram0_ecccfg); + mtsdram(SDRAM0_ECCESR, sdram0_eccesr); +#endif + mtsdram(SDRAM0_RTR, sdram0_rtr); + mtsdram(SDRAM0_PMIT, sdram0_pmit); + mtsdram(SDRAM0_B0CR, sdram0_b0cr); + mtsdram(SDRAM0_B1CR, sdram0_b1cr); +#ifndef CONFIG_405EP /* not on PPC405EP */ + mtsdram(SDRAM0_B2CR, sdram0_b2cr); + mtsdram(SDRAM0_B3CR, sdram0_b3cr); +#endif + mtsdram(SDRAM0_TR, sdram0_tr); + + /* SDRAM have a power on delay, 500 micro should do */ + udelay(500); + sdram0_cfg = SDRAM0_CFG_DCE | SDRAM0_CFG_BRPF(1) | SDRAM0_CFG_ECCDD | SDRAM0_CFG_EMDULR; + if (ecc_on) + sdram0_cfg |= SDRAM0_CFG_MEMCHK; + mtsdram(SDRAM0_CFG, sdram0_cfg); + + return (total_size); +} + +int spd_read(uint addr) +{ + uchar data[2]; + + if (i2c_read(SPD_EEPROM_ADDRESS, addr, 1, data, 1) == 0) + return (int)data[0]; + else + return 0; +} + +#endif /* CONFIG_SPD_EEPROM */ diff --git a/arch/ppc/cpu/ppc4xx/44x_spd_ddr.c b/arch/ppc/cpu/ppc4xx/44x_spd_ddr.c new file mode 100644 index 0000000..9d1994f --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/44x_spd_ddr.c @@ -0,0 +1,1248 @@ +/* + * arch/ppc/cpu/ppc4xx/44x_spd_ddr.c + * This SPD DDR detection code supports IBM/AMCC PPC44x cpu with a + * DDR controller. Those are 440GP/GX/EP/GR. + * + * (C) Copyright 2001 + * Bill Hunter, Wave 7 Optics, williamhunter@attbi.com + * + * Based on code by: + * + * Kenneth Johansson ,Ericsson AB. + * kenneth.johansson@etx.ericsson.se + * + * hacked up by bill hunter. fixed so we could run before + * serial_init and console_init. previous version avoided this by + * running out of cache memory during serial/console init, then running + * this code later. + * + * (C) Copyright 2002 + * Jun Gu, Artesyn Technology, jung@artesyncp.com + * Support for AMCC 440 based on OpenBIOS draminit.c from IBM. + * + * (C) Copyright 2005-2007 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* define DEBUG for debugging output (obviously ;-)) */ +#if 0 +#define DEBUG +#endif + +#include <common.h> +#include <asm/processor.h> +#include <i2c.h> +#include <ppc4xx.h> +#include <asm/mmu.h> + +#include "ecc.h" + +#if defined(CONFIG_SPD_EEPROM) && \ + (defined(CONFIG_440GP) || defined(CONFIG_440GX) || \ + defined(CONFIG_440EP) || defined(CONFIG_440GR)) + +/* + * Set default values + */ +#ifndef CONFIG_SYS_I2C_SPEED +#define CONFIG_SYS_I2C_SPEED 50000 +#endif + +#define ONE_BILLION 1000000000 + +/* + * Board-specific Platform code can reimplement spd_ddr_init_hang () if needed + */ +void __spd_ddr_init_hang (void) +{ + hang (); +} +void spd_ddr_init_hang (void) __attribute__((weak, alias("__spd_ddr_init_hang"))); + +/*-----------------------------------------------------------------------------+ + | General Definition + +-----------------------------------------------------------------------------*/ +#define DEFAULT_SPD_ADDR1 0x53 +#define DEFAULT_SPD_ADDR2 0x52 +#define MAXBANKS 4 /* at most 4 dimm banks */ +#define MAX_SPD_BYTES 256 +#define NUMHALFCYCLES 4 +#define NUMMEMTESTS 8 +#define NUMMEMWORDS 8 +#define MAXBXCR 4 +#define TRUE 1 +#define FALSE 0 + +/* + * This DDR2 setup code can dynamically setup the TLB entries for the DDR2 memory + * region. Right now the cache should still be disabled in U-Boot because of the + * EMAC driver, that need it's buffer descriptor to be located in non cached + * memory. + * + * If at some time this restriction doesn't apply anymore, just define + * CONFIG_4xx_DCACHE in the board config file and this code should setup + * everything correctly. + */ +#ifdef CONFIG_4xx_DCACHE +#define MY_TLB_WORD2_I_ENABLE 0 /* enable caching on SDRAM */ +#else +#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE /* disable caching on SDRAM */ +#endif + +/* bank_parms is used to sort the bank sizes by descending order */ +struct bank_param { + unsigned long cr; + unsigned long bank_size_bytes; +}; + +typedef struct bank_param BANKPARMS; + +#ifdef CONFIG_SYS_SIMULATE_SPD_EEPROM +extern const unsigned char cfg_simulate_spd_eeprom[128]; +#endif + +static unsigned char spd_read(uchar chip, uint addr); +static void get_spd_info(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void check_mem_type(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void check_volt_type(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void program_cfg0(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void program_cfg1(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void program_rtr(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void program_tr0(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void program_tr1(void); + +static unsigned long program_bxcr(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); + +/* + * This function is reading data from the DIMM module EEPROM over the SPD bus + * and uses that to program the sdram controller. + * + * This works on boards that has the same schematics that the AMCC walnut has. + * + * BUG: Don't handle ECC memory + * BUG: A few values in the TR register is currently hardcoded + */ +long int spd_sdram(void) { + unsigned char iic0_dimm_addr[] = SPD_EEPROM_ADDRESS; + unsigned long dimm_populated[sizeof(iic0_dimm_addr)]; + unsigned long total_size; + unsigned long cfg0; + unsigned long mcsts; + unsigned long num_dimm_banks; /* on board dimm banks */ + + num_dimm_banks = sizeof(iic0_dimm_addr); + + /* + * Make sure I2C controller is initialized + * before continuing. + */ + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + + /* + * Read the SPD information using I2C interface. Check to see if the + * DIMM slots are populated. + */ + get_spd_info(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /* + * Check the memory type for the dimms plugged. + */ + check_mem_type(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /* + * Check the voltage type for the dimms plugged. + */ + check_volt_type(dimm_populated, iic0_dimm_addr, num_dimm_banks); + +#if defined(CONFIG_440GX) || defined(CONFIG_440EP) || defined(CONFIG_440GR) + /* + * Soft-reset SDRAM controller. + */ + mtsdr(SDR0_SRST, SDR0_SRST_DMC); + mtsdr(SDR0_SRST, 0x00000000); +#endif + + /* + * program 440GP SDRAM controller options (SDRAM0_CFG0) + */ + program_cfg0(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /* + * program 440GP SDRAM controller options (SDRAM0_CFG1) + */ + program_cfg1(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /* + * program SDRAM refresh register (SDRAM0_RTR) + */ + program_rtr(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /* + * program SDRAM Timing Register 0 (SDRAM0_TR0) + */ + program_tr0(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /* + * program the BxCR registers to find out total sdram installed + */ + total_size = program_bxcr(dimm_populated, iic0_dimm_addr, + num_dimm_banks); + +#ifdef CONFIG_PROG_SDRAM_TLB /* this define should eventually be removed */ + /* and program tlb entries for this size (dynamic) */ + program_tlb(0, 0, total_size, MY_TLB_WORD2_I_ENABLE); +#endif + + /* + * program SDRAM Clock Timing Register (SDRAM0_CLKTR) + */ + mtsdram(SDRAM0_CLKTR, 0x40000000); + + /* + * delay to ensure 200 usec has elapsed + */ + udelay(400); + + /* + * enable the memory controller + */ + mfsdram(SDRAM0_CFG0, cfg0); + mtsdram(SDRAM0_CFG0, cfg0 | SDRAM_CFG0_DCEN); + + /* + * wait for SDRAM_CFG0_DC_EN to complete + */ + while (1) { + mfsdram(SDRAM0_MCSTS, mcsts); + if ((mcsts & SDRAM_MCSTS_MRSC) != 0) + break; + } + + /* + * program SDRAM Timing Register 1, adding some delays + */ + program_tr1(); + +#ifdef CONFIG_DDR_ECC + /* + * If ecc is enabled, initialize the parity bits. + */ + ecc_init(CONFIG_SYS_SDRAM_BASE, total_size); +#endif + + return total_size; +} + +static unsigned char spd_read(uchar chip, uint addr) +{ + unsigned char data[2]; + +#ifdef CONFIG_SYS_SIMULATE_SPD_EEPROM + if (chip == CONFIG_SYS_SIMULATE_SPD_EEPROM) { + /* + * Onboard spd eeprom requested -> simulate values + */ + return cfg_simulate_spd_eeprom[addr]; + } +#endif /* CONFIG_SYS_SIMULATE_SPD_EEPROM */ + + if (i2c_probe(chip) == 0) { + if (i2c_read(chip, addr, 1, data, 1) == 0) { + return data[0]; + } + } + + return 0; +} + +static void get_spd_info(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long dimm_found; + unsigned char num_of_bytes; + unsigned char total_size; + + dimm_found = FALSE; + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + num_of_bytes = 0; + total_size = 0; + + num_of_bytes = spd_read(iic0_dimm_addr[dimm_num], 0); + total_size = spd_read(iic0_dimm_addr[dimm_num], 1); + + if ((num_of_bytes != 0) && (total_size != 0)) { + dimm_populated[dimm_num] = TRUE; + dimm_found = TRUE; + debug("DIMM slot %lu: populated\n", dimm_num); + } else { + dimm_populated[dimm_num] = FALSE; + debug("DIMM slot %lu: Not populated\n", dimm_num); + } + } + + if (dimm_found == FALSE) { + printf("ERROR - No memory installed. Install a DDR-SDRAM DIMM.\n\n"); + spd_ddr_init_hang (); + } +} + +static void check_mem_type(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned char dimm_type; + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] == TRUE) { + dimm_type = spd_read(iic0_dimm_addr[dimm_num], 2); + switch (dimm_type) { + case 7: + debug("DIMM slot %lu: DDR SDRAM detected\n", dimm_num); + break; + default: + printf("ERROR: Unsupported DIMM detected in slot %lu.\n", + dimm_num); + printf("Only DDR SDRAM DIMMs are supported.\n"); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + break; + } + } + } +} + +static void check_volt_type(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long voltage_type; + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] == TRUE) { + voltage_type = spd_read(iic0_dimm_addr[dimm_num], 8); + if (voltage_type != 0x04) { + printf("ERROR: DIMM %lu with unsupported voltage level.\n", + dimm_num); + spd_ddr_init_hang (); + } else { + debug("DIMM %lu voltage level supported.\n", dimm_num); + } + break; + } + } +} + +static void program_cfg0(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long cfg0; + unsigned long ecc_enabled; + unsigned char ecc; + unsigned char attributes; + unsigned long data_width; + unsigned long dimm_32bit; + unsigned long dimm_64bit; + + /* + * get Memory Controller Options 0 data + */ + mfsdram(SDRAM0_CFG0, cfg0); + + /* + * clear bits + */ + cfg0 &= ~(SDRAM_CFG0_DCEN | SDRAM_CFG0_MCHK_MASK | + SDRAM_CFG0_RDEN | SDRAM_CFG0_PMUD | + SDRAM_CFG0_DMWD_MASK | + SDRAM_CFG0_UIOS_MASK | SDRAM_CFG0_PDP); + + + /* + * FIXME: assume the DDR SDRAMs in both banks are the same + */ + ecc_enabled = TRUE; + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] == TRUE) { + ecc = spd_read(iic0_dimm_addr[dimm_num], 11); + if (ecc != 0x02) { + ecc_enabled = FALSE; + } + + /* + * program Registered DIMM Enable + */ + attributes = spd_read(iic0_dimm_addr[dimm_num], 21); + if ((attributes & 0x02) != 0x00) { + cfg0 |= SDRAM_CFG0_RDEN; + } + + /* + * program DDR SDRAM Data Width + */ + data_width = + (unsigned long)spd_read(iic0_dimm_addr[dimm_num],6) + + (((unsigned long)spd_read(iic0_dimm_addr[dimm_num],7)) << 8); + if (data_width == 64 || data_width == 72) { + dimm_64bit = TRUE; + cfg0 |= SDRAM_CFG0_DMWD_64; + } else if (data_width == 32 || data_width == 40) { + dimm_32bit = TRUE; + cfg0 |= SDRAM_CFG0_DMWD_32; + } else { + printf("WARNING: DIMM with datawidth of %lu bits.\n", + data_width); + printf("Only DIMMs with 32 or 64 bit datawidths supported.\n"); + spd_ddr_init_hang (); + } + break; + } + } + + /* + * program Memory Data Error Checking + */ + if (ecc_enabled == TRUE) { + cfg0 |= SDRAM_CFG0_MCHK_GEN; + } else { + cfg0 |= SDRAM_CFG0_MCHK_NON; + } + + /* + * program Page Management Unit (0 == enabled) + */ + cfg0 &= ~SDRAM_CFG0_PMUD; + + /* + * program Memory Controller Options 0 + * Note: DCEN must be enabled after all DDR SDRAM controller + * configuration registers get initialized. + */ + mtsdram(SDRAM0_CFG0, cfg0); +} + +static void program_cfg1(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long cfg1; + mfsdram(SDRAM0_CFG1, cfg1); + + /* + * Self-refresh exit, disable PM + */ + cfg1 &= ~(SDRAM_CFG1_SRE | SDRAM_CFG1_PMEN); + + /* + * program Memory Controller Options 1 + */ + mtsdram(SDRAM0_CFG1, cfg1); +} + +static void program_rtr(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long bus_period_x_10; + unsigned long refresh_rate = 0; + unsigned char refresh_rate_type; + unsigned long refresh_interval; + unsigned long sdram_rtr; + PPC4xx_SYS_INFO sys_info; + + /* + * get the board info + */ + get_sys_info(&sys_info); + bus_period_x_10 = ONE_BILLION / (sys_info.freqPLB / 10); + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] == TRUE) { + refresh_rate_type = 0x7F & spd_read(iic0_dimm_addr[dimm_num], 12); + switch (refresh_rate_type) { + case 0x00: + refresh_rate = 15625; + break; + case 0x01: + refresh_rate = 15625/4; + break; + case 0x02: + refresh_rate = 15625/2; + break; + case 0x03: + refresh_rate = 15626*2; + break; + case 0x04: + refresh_rate = 15625*4; + break; + case 0x05: + refresh_rate = 15625*8; + break; + default: + printf("ERROR: DIMM %lu, unsupported refresh rate/type.\n", + dimm_num); + printf("Replace the DIMM module with a supported DIMM.\n"); + break; + } + + break; + } + } + + refresh_interval = refresh_rate * 10 / bus_period_x_10; + sdram_rtr = (refresh_interval & 0x3ff8) << 16; + + /* + * program Refresh Timer Register (SDRAM0_RTR) + */ + mtsdram(SDRAM0_RTR, sdram_rtr); +} + +static void program_tr0(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long tr0; + unsigned char wcsbc; + unsigned char t_rp_ns; + unsigned char t_rcd_ns; + unsigned char t_ras_ns; + unsigned long t_rp_clk; + unsigned long t_ras_rcd_clk; + unsigned long t_rcd_clk; + unsigned long t_rfc_clk; + unsigned long plb_check; + unsigned char cas_bit; + unsigned long cas_index; + unsigned char cas_2_0_available; + unsigned char cas_2_5_available; + unsigned char cas_3_0_available; + unsigned long cycle_time_ns_x_10[3]; + unsigned long tcyc_3_0_ns_x_10; + unsigned long tcyc_2_5_ns_x_10; + unsigned long tcyc_2_0_ns_x_10; + unsigned long tcyc_reg; + unsigned long bus_period_x_10; + PPC4xx_SYS_INFO sys_info; + unsigned long residue; + + /* + * get the board info + */ + get_sys_info(&sys_info); + bus_period_x_10 = ONE_BILLION / (sys_info.freqPLB / 10); + + /* + * get SDRAM Timing Register 0 (SDRAM_TR0) and clear bits + */ + mfsdram(SDRAM0_TR0, tr0); + tr0 &= ~(SDRAM_TR0_SDWR_MASK | SDRAM_TR0_SDWD_MASK | + SDRAM_TR0_SDCL_MASK | SDRAM_TR0_SDPA_MASK | + SDRAM_TR0_SDCP_MASK | SDRAM_TR0_SDLD_MASK | + SDRAM_TR0_SDRA_MASK | SDRAM_TR0_SDRD_MASK); + + /* + * initialization + */ + wcsbc = 0; + t_rp_ns = 0; + t_rcd_ns = 0; + t_ras_ns = 0; + cas_2_0_available = TRUE; + cas_2_5_available = TRUE; + cas_3_0_available = TRUE; + tcyc_2_0_ns_x_10 = 0; + tcyc_2_5_ns_x_10 = 0; + tcyc_3_0_ns_x_10 = 0; + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] == TRUE) { + wcsbc = spd_read(iic0_dimm_addr[dimm_num], 15); + t_rp_ns = spd_read(iic0_dimm_addr[dimm_num], 27) >> 2; + t_rcd_ns = spd_read(iic0_dimm_addr[dimm_num], 29) >> 2; + t_ras_ns = spd_read(iic0_dimm_addr[dimm_num], 30); + cas_bit = spd_read(iic0_dimm_addr[dimm_num], 18); + + for (cas_index = 0; cas_index < 3; cas_index++) { + switch (cas_index) { + case 0: + tcyc_reg = spd_read(iic0_dimm_addr[dimm_num], 9); + break; + case 1: + tcyc_reg = spd_read(iic0_dimm_addr[dimm_num], 23); + break; + default: + tcyc_reg = spd_read(iic0_dimm_addr[dimm_num], 25); + break; + } + + if ((tcyc_reg & 0x0F) >= 10) { + printf("ERROR: Tcyc incorrect for DIMM in slot %lu\n", + dimm_num); + spd_ddr_init_hang (); + } + + cycle_time_ns_x_10[cas_index] = + (((tcyc_reg & 0xF0) >> 4) * 10) + (tcyc_reg & 0x0F); + } + + cas_index = 0; + + if ((cas_bit & 0x80) != 0) { + cas_index += 3; + } else if ((cas_bit & 0x40) != 0) { + cas_index += 2; + } else if ((cas_bit & 0x20) != 0) { + cas_index += 1; + } + + if (((cas_bit & 0x10) != 0) && (cas_index < 3)) { + tcyc_3_0_ns_x_10 = cycle_time_ns_x_10[cas_index]; + cas_index++; + } else { + if (cas_index != 0) { + cas_index++; + } + cas_3_0_available = FALSE; + } + + if (((cas_bit & 0x08) != 0) || (cas_index < 3)) { + tcyc_2_5_ns_x_10 = cycle_time_ns_x_10[cas_index]; + cas_index++; + } else { + if (cas_index != 0) { + cas_index++; + } + cas_2_5_available = FALSE; + } + + if (((cas_bit & 0x04) != 0) || (cas_index < 3)) { + tcyc_2_0_ns_x_10 = cycle_time_ns_x_10[cas_index]; + cas_index++; + } else { + if (cas_index != 0) { + cas_index++; + } + cas_2_0_available = FALSE; + } + + break; + } + } + + /* + * Program SD_WR and SD_WCSBC fields + */ + tr0 |= SDRAM_TR0_SDWR_2_CLK; /* Write Recovery: 2 CLK */ + switch (wcsbc) { + case 0: + tr0 |= SDRAM_TR0_SDWD_0_CLK; + break; + default: + tr0 |= SDRAM_TR0_SDWD_1_CLK; + break; + } + + /* + * Program SD_CASL field + */ + if ((cas_2_0_available == TRUE) && + (bus_period_x_10 >= tcyc_2_0_ns_x_10)) { + tr0 |= SDRAM_TR0_SDCL_2_0_CLK; + } else if ((cas_2_5_available == TRUE) && + (bus_period_x_10 >= tcyc_2_5_ns_x_10)) { + tr0 |= SDRAM_TR0_SDCL_2_5_CLK; + } else if ((cas_3_0_available == TRUE) && + (bus_period_x_10 >= tcyc_3_0_ns_x_10)) { + tr0 |= SDRAM_TR0_SDCL_3_0_CLK; + } else { + printf("ERROR: No supported CAS latency with the installed DIMMs.\n"); + printf("Only CAS latencies of 2.0, 2.5, and 3.0 are supported.\n"); + printf("Make sure the PLB speed is within the supported range.\n"); + spd_ddr_init_hang (); + } + + /* + * Calculate Trp in clock cycles and round up if necessary + * Program SD_PTA field + */ + t_rp_clk = sys_info.freqPLB * t_rp_ns / ONE_BILLION; + plb_check = ONE_BILLION * t_rp_clk / t_rp_ns; + if (sys_info.freqPLB != plb_check) { + t_rp_clk++; + } + switch ((unsigned long)t_rp_clk) { + case 0: + case 1: + case 2: + tr0 |= SDRAM_TR0_SDPA_2_CLK; + break; + case 3: + tr0 |= SDRAM_TR0_SDPA_3_CLK; + break; + default: + tr0 |= SDRAM_TR0_SDPA_4_CLK; + break; + } + + /* + * Program SD_CTP field + */ + t_ras_rcd_clk = sys_info.freqPLB * (t_ras_ns - t_rcd_ns) / ONE_BILLION; + plb_check = ONE_BILLION * t_ras_rcd_clk / (t_ras_ns - t_rcd_ns); + if (sys_info.freqPLB != plb_check) { + t_ras_rcd_clk++; + } + switch (t_ras_rcd_clk) { + case 0: + case 1: + case 2: + tr0 |= SDRAM_TR0_SDCP_2_CLK; + break; + case 3: + tr0 |= SDRAM_TR0_SDCP_3_CLK; + break; + case 4: + tr0 |= SDRAM_TR0_SDCP_4_CLK; + break; + default: + tr0 |= SDRAM_TR0_SDCP_5_CLK; + break; + } + + /* + * Program SD_LDF field + */ + tr0 |= SDRAM_TR0_SDLD_2_CLK; + + /* + * Program SD_RFTA field + * FIXME tRFC hardcoded as 75 nanoseconds + */ + t_rfc_clk = sys_info.freqPLB / (ONE_BILLION / 75); + residue = sys_info.freqPLB % (ONE_BILLION / 75); + if (residue >= (ONE_BILLION / 150)) { + t_rfc_clk++; + } + switch (t_rfc_clk) { + case 0: + case 1: + case 2: + case 3: + case 4: + case 5: + case 6: + tr0 |= SDRAM_TR0_SDRA_6_CLK; + break; + case 7: + tr0 |= SDRAM_TR0_SDRA_7_CLK; + break; + case 8: + tr0 |= SDRAM_TR0_SDRA_8_CLK; + break; + case 9: + tr0 |= SDRAM_TR0_SDRA_9_CLK; + break; + case 10: + tr0 |= SDRAM_TR0_SDRA_10_CLK; + break; + case 11: + tr0 |= SDRAM_TR0_SDRA_11_CLK; + break; + case 12: + tr0 |= SDRAM_TR0_SDRA_12_CLK; + break; + default: + tr0 |= SDRAM_TR0_SDRA_13_CLK; + break; + } + + /* + * Program SD_RCD field + */ + t_rcd_clk = sys_info.freqPLB * t_rcd_ns / ONE_BILLION; + plb_check = ONE_BILLION * t_rcd_clk / t_rcd_ns; + if (sys_info.freqPLB != plb_check) { + t_rcd_clk++; + } + switch (t_rcd_clk) { + case 0: + case 1: + case 2: + tr0 |= SDRAM_TR0_SDRD_2_CLK; + break; + case 3: + tr0 |= SDRAM_TR0_SDRD_3_CLK; + break; + default: + tr0 |= SDRAM_TR0_SDRD_4_CLK; + break; + } + + debug("tr0: %x\n", tr0); + mtsdram(SDRAM0_TR0, tr0); +} + +static int short_mem_test(void) +{ + unsigned long i, j; + unsigned long bxcr_num; + unsigned long *membase; + const unsigned long test[NUMMEMTESTS][NUMMEMWORDS] = { + {0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, + 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF}, + {0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, + 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000}, + {0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, + 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555}, + {0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, + 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA}, + {0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, + 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A}, + {0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, + 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5}, + {0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, + 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA}, + {0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, + 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55}}; + + for (bxcr_num = 0; bxcr_num < MAXBXCR; bxcr_num++) { + mtdcr(SDRAM0_CFGADDR, SDRAM0_B0CR + (bxcr_num << 2)); + if ((mfdcr(SDRAM0_CFGDATA) & SDRAM_BXCR_SDBE) == SDRAM_BXCR_SDBE) { + /* Bank is enabled */ + membase = (unsigned long*) + (mfdcr(SDRAM0_CFGDATA) & SDRAM_BXCR_SDBA_MASK); + + /* + * Run the short memory test + */ + for (i = 0; i < NUMMEMTESTS; i++) { + for (j = 0; j < NUMMEMWORDS; j++) { + /* printf("bank enabled base:%x\n", &membase[j]); */ + membase[j] = test[i][j]; + ppcDcbf((unsigned long)&(membase[j])); + } + + for (j = 0; j < NUMMEMWORDS; j++) { + if (membase[j] != test[i][j]) { + ppcDcbf((unsigned long)&(membase[j])); + return 0; + } + ppcDcbf((unsigned long)&(membase[j])); + } + + if (j < NUMMEMWORDS) + return 0; + } + + /* + * see if the rdclt value passed + */ + if (i < NUMMEMTESTS) + return 0; + } + } + + return 1; +} + +static void program_tr1(void) +{ + unsigned long tr0; + unsigned long tr1; + unsigned long cfg0; + unsigned long ecc_temp; + unsigned long dlycal; + unsigned long dly_val; + unsigned long k; + unsigned long max_pass_length; + unsigned long current_pass_length; + unsigned long current_fail_length; + unsigned long current_start; + unsigned long rdclt; + unsigned long rdclt_offset; + long max_start; + long max_end; + long rdclt_average; + unsigned char window_found; + unsigned char fail_found; + unsigned char pass_found; + PPC4xx_SYS_INFO sys_info; + + /* + * get the board info + */ + get_sys_info(&sys_info); + + /* + * get SDRAM Timing Register 0 (SDRAM_TR0) and clear bits + */ + mfsdram(SDRAM0_TR1, tr1); + tr1 &= ~(SDRAM_TR1_RDSS_MASK | SDRAM_TR1_RDSL_MASK | + SDRAM_TR1_RDCD_MASK | SDRAM_TR1_RDCT_MASK); + + mfsdram(SDRAM0_TR0, tr0); + if (((tr0 & SDRAM_TR0_SDCL_MASK) == SDRAM_TR0_SDCL_2_5_CLK) && + (sys_info.freqPLB > 100000000)) { + tr1 |= SDRAM_TR1_RDSS_TR2; + tr1 |= SDRAM_TR1_RDSL_STAGE3; + tr1 |= SDRAM_TR1_RDCD_RCD_1_2; + } else { + tr1 |= SDRAM_TR1_RDSS_TR1; + tr1 |= SDRAM_TR1_RDSL_STAGE2; + tr1 |= SDRAM_TR1_RDCD_RCD_0_0; + } + + /* + * save CFG0 ECC setting to a temporary variable and turn ECC off + */ + mfsdram(SDRAM0_CFG0, cfg0); + ecc_temp = cfg0 & SDRAM_CFG0_MCHK_MASK; + mtsdram(SDRAM0_CFG0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) | SDRAM_CFG0_MCHK_NON); + + /* + * get the delay line calibration register value + */ + mfsdram(SDRAM0_DLYCAL, dlycal); + dly_val = SDRAM_DLYCAL_DLCV_DECODE(dlycal) << 2; + + max_pass_length = 0; + max_start = 0; + max_end = 0; + current_pass_length = 0; + current_fail_length = 0; + current_start = 0; + rdclt_offset = 0; + window_found = FALSE; + fail_found = FALSE; + pass_found = FALSE; + debug("Starting memory test "); + + for (k = 0; k < NUMHALFCYCLES; k++) { + for (rdclt = 0; rdclt < dly_val; rdclt++) { + /* + * Set the timing reg for the test. + */ + mtsdram(SDRAM0_TR1, (tr1 | SDRAM_TR1_RDCT_ENCODE(rdclt))); + + if (short_mem_test()) { + if (fail_found == TRUE) { + pass_found = TRUE; + if (current_pass_length == 0) { + current_start = rdclt_offset + rdclt; + } + + current_fail_length = 0; + current_pass_length++; + + if (current_pass_length > max_pass_length) { + max_pass_length = current_pass_length; + max_start = current_start; + max_end = rdclt_offset + rdclt; + } + } + } else { + current_pass_length = 0; + current_fail_length++; + + if (current_fail_length >= (dly_val>>2)) { + if (fail_found == FALSE) { + fail_found = TRUE; + } else if (pass_found == TRUE) { + window_found = TRUE; + break; + } + } + } + } + debug("."); + + if (window_found == TRUE) { + break; + } + + tr1 = tr1 ^ SDRAM_TR1_RDCD_MASK; + rdclt_offset += dly_val; + } + debug("\n"); + + /* + * make sure we find the window + */ + if (window_found == FALSE) { + printf("ERROR: Cannot determine a common read delay.\n"); + spd_ddr_init_hang (); + } + + /* + * restore the orignal ECC setting + */ + mtsdram(SDRAM0_CFG0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) | ecc_temp); + + /* + * set the SDRAM TR1 RDCD value + */ + tr1 &= ~SDRAM_TR1_RDCD_MASK; + if ((tr0 & SDRAM_TR0_SDCL_MASK) == SDRAM_TR0_SDCL_2_5_CLK) { + tr1 |= SDRAM_TR1_RDCD_RCD_1_2; + } else { + tr1 |= SDRAM_TR1_RDCD_RCD_0_0; + } + + /* + * set the SDRAM TR1 RDCLT value + */ + tr1 &= ~SDRAM_TR1_RDCT_MASK; + while (max_end >= (dly_val << 1)) { + max_end -= (dly_val << 1); + max_start -= (dly_val << 1); + } + + rdclt_average = ((max_start + max_end) >> 1); + + if (rdclt_average < 0) { + rdclt_average = 0; + } + + if (rdclt_average >= dly_val) { + rdclt_average -= dly_val; + tr1 = tr1 ^ SDRAM_TR1_RDCD_MASK; + } + tr1 |= SDRAM_TR1_RDCT_ENCODE(rdclt_average); + + debug("tr1: %x\n", tr1); + + /* + * program SDRAM Timing Register 1 TR1 + */ + mtsdram(SDRAM0_TR1, tr1); +} + +static unsigned long program_bxcr(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long bank_base_addr; + unsigned long cr; + unsigned long i; + unsigned long j; + unsigned long temp; + unsigned char num_row_addr; + unsigned char num_col_addr; + unsigned char num_banks; + unsigned char bank_size_id; + unsigned long ctrl_bank_num[MAXBANKS]; + unsigned long bx_cr_num; + unsigned long largest_size_index; + unsigned long largest_size; + unsigned long current_size_index; + BANKPARMS bank_parms[MAXBXCR]; + unsigned long sorted_bank_num[MAXBXCR]; /* DDR Controller bank number table (sorted by size) */ + unsigned long sorted_bank_size[MAXBXCR]; /* DDR Controller bank size table (sorted by size)*/ + + /* + * Set the BxCR regs. First, wipe out the bank config registers. + */ + for (bx_cr_num = 0; bx_cr_num < MAXBXCR; bx_cr_num++) { + mtdcr(SDRAM0_CFGADDR, SDRAM0_B0CR + (bx_cr_num << 2)); + mtdcr(SDRAM0_CFGDATA, 0x00000000); + bank_parms[bx_cr_num].bank_size_bytes = 0; + } + +#ifdef CONFIG_BAMBOO + /* + * This next section is hardware dependent and must be programmed + * to match the hardware. For bamboo, the following holds... + * 1. SDRAM0_B0CR: Bank 0 of dimm 0 ctrl_bank_num : 0 (soldered onboard) + * 2. SDRAM0_B1CR: Bank 0 of dimm 1 ctrl_bank_num : 1 + * 3. SDRAM0_B2CR: Bank 1 of dimm 1 ctrl_bank_num : 1 + * 4. SDRAM0_B3CR: Bank 0 of dimm 2 ctrl_bank_num : 3 + * ctrl_bank_num corresponds to the first usable DDR controller bank number by DIMM + */ + ctrl_bank_num[0] = 0; + ctrl_bank_num[1] = 1; + ctrl_bank_num[2] = 3; +#else + /* + * Ocotea, Ebony and the other IBM/AMCC eval boards have + * 2 DIMM slots with each max 2 banks + */ + ctrl_bank_num[0] = 0; + ctrl_bank_num[1] = 2; +#endif + + /* + * reset the bank_base address + */ + bank_base_addr = CONFIG_SYS_SDRAM_BASE; + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] == TRUE) { + num_row_addr = spd_read(iic0_dimm_addr[dimm_num], 3); + num_col_addr = spd_read(iic0_dimm_addr[dimm_num], 4); + num_banks = spd_read(iic0_dimm_addr[dimm_num], 5); + bank_size_id = spd_read(iic0_dimm_addr[dimm_num], 31); + debug("DIMM%d: row=%d col=%d banks=%d\n", dimm_num, + num_row_addr, num_col_addr, num_banks); + + /* + * Set the SDRAM0_BxCR regs + */ + cr = 0; + switch (bank_size_id) { + case 0x02: + cr |= SDRAM_BXCR_SDSZ_8; + break; + case 0x04: + cr |= SDRAM_BXCR_SDSZ_16; + break; + case 0x08: + cr |= SDRAM_BXCR_SDSZ_32; + break; + case 0x10: + cr |= SDRAM_BXCR_SDSZ_64; + break; + case 0x20: + cr |= SDRAM_BXCR_SDSZ_128; + break; + case 0x40: + cr |= SDRAM_BXCR_SDSZ_256; + break; + case 0x80: + cr |= SDRAM_BXCR_SDSZ_512; + break; + default: + printf("DDR-SDRAM: DIMM %lu BxCR configuration.\n", + dimm_num); + printf("ERROR: Unsupported value for the banksize: %d.\n", + bank_size_id); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + } + + switch (num_col_addr) { + case 0x08: + cr |= SDRAM_BXCR_SDAM_1; + break; + case 0x09: + cr |= SDRAM_BXCR_SDAM_2; + break; + case 0x0A: + cr |= SDRAM_BXCR_SDAM_3; + break; + case 0x0B: + cr |= SDRAM_BXCR_SDAM_4; + break; + default: + printf("DDR-SDRAM: DIMM %lu BxCR configuration.\n", + dimm_num); + printf("ERROR: Unsupported value for number of " + "column addresses: %d.\n", num_col_addr); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + } + + /* + * enable the bank + */ + cr |= SDRAM_BXCR_SDBE; + + for (i = 0; i < num_banks; i++) { + bank_parms[ctrl_bank_num[dimm_num]+i].bank_size_bytes = + (4 << 20) * bank_size_id; + bank_parms[ctrl_bank_num[dimm_num]+i].cr = cr; + debug("DIMM%d-bank %d (SDRAM0_B%dCR): bank_size_bytes=%d\n", + dimm_num, i, ctrl_bank_num[dimm_num]+i, + bank_parms[ctrl_bank_num[dimm_num]+i].bank_size_bytes); + } + } + } + + /* Initialize sort tables */ + for (i = 0; i < MAXBXCR; i++) { + sorted_bank_num[i] = i; + sorted_bank_size[i] = bank_parms[i].bank_size_bytes; + } + + for (i = 0; i < MAXBXCR-1; i++) { + largest_size = sorted_bank_size[i]; + largest_size_index = 255; + + /* Find the largest remaining value */ + for (j = i + 1; j < MAXBXCR; j++) { + if (sorted_bank_size[j] > largest_size) { + /* Save largest remaining value and its index */ + largest_size = sorted_bank_size[j]; + largest_size_index = j; + } + } + + if (largest_size_index != 255) { + /* Swap the current and largest values */ + current_size_index = sorted_bank_num[largest_size_index]; + sorted_bank_size[largest_size_index] = sorted_bank_size[i]; + sorted_bank_size[i] = largest_size; + sorted_bank_num[largest_size_index] = sorted_bank_num[i]; + sorted_bank_num[i] = current_size_index; + } + } + + /* Set the SDRAM0_BxCR regs thanks to sort tables */ + for (bx_cr_num = 0, bank_base_addr = 0; bx_cr_num < MAXBXCR; bx_cr_num++) { + if (bank_parms[sorted_bank_num[bx_cr_num]].bank_size_bytes) { + mtdcr(SDRAM0_CFGADDR, SDRAM0_B0CR + (sorted_bank_num[bx_cr_num] << 2)); + temp = mfdcr(SDRAM0_CFGDATA) & ~(SDRAM_BXCR_SDBA_MASK | SDRAM_BXCR_SDSZ_MASK | + SDRAM_BXCR_SDAM_MASK | SDRAM_BXCR_SDBE); + temp = temp | (bank_base_addr & SDRAM_BXCR_SDBA_MASK) | + bank_parms[sorted_bank_num[bx_cr_num]].cr; + mtdcr(SDRAM0_CFGDATA, temp); + bank_base_addr += bank_parms[sorted_bank_num[bx_cr_num]].bank_size_bytes; + debug("SDRAM0_B%dCR=0x%08lx\n", sorted_bank_num[bx_cr_num], temp); + } + } + + return(bank_base_addr); +} +#endif /* CONFIG_SPD_EEPROM */ diff --git a/arch/ppc/cpu/ppc4xx/44x_spd_ddr2.c b/arch/ppc/cpu/ppc4xx/44x_spd_ddr2.c new file mode 100644 index 0000000..ea6c2ac --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/44x_spd_ddr2.c @@ -0,0 +1,3174 @@ +/* + * arch/ppc/cpu/ppc4xx/44x_spd_ddr2.c + * This SPD SDRAM detection code supports AMCC PPC44x cpu's with a + * DDR2 controller (non Denali Core). Those currently are: + * + * 405: 405EX(r) + * 440/460: 440SP/440SPe/460EX/460GT + * + * Copyright (c) 2008 Nuovation System Designs, LLC + * Grant Erickson <gerickson@nuovations.com> + + * (C) Copyright 2007-2009 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * COPYRIGHT AMCC CORPORATION 2004 + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +/* define DEBUG for debugging output (obviously ;-)) */ +#if 0 +#define DEBUG +#endif + +#include <common.h> +#include <command.h> +#include <ppc4xx.h> +#include <i2c.h> +#include <asm/io.h> +#include <asm/processor.h> +#include <asm/mmu.h> +#include <asm/cache.h> + +#include "ecc.h" + +#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR2) + +#define PPC4xx_IBM_DDR2_DUMP_REGISTER(mnemonic) \ + do { \ + u32 data; \ + mfsdram(SDRAM_##mnemonic, data); \ + printf("%20s[%02x] = 0x%08X\n", \ + "SDRAM_" #mnemonic, SDRAM_##mnemonic, data); \ + } while (0) + +#define PPC4xx_IBM_DDR2_DUMP_MQ_REGISTER(mnemonic) \ + do { \ + u32 data; \ + data = mfdcr(SDRAM_##mnemonic); \ + printf("%20s[%02x] = 0x%08X\n", \ + "SDRAM_" #mnemonic, SDRAM_##mnemonic, data); \ + } while (0) + +#if defined(CONFIG_440) +/* + * This DDR2 setup code can dynamically setup the TLB entries for the DDR2 + * memory region. Right now the cache should still be disabled in U-Boot + * because of the EMAC driver, that need its buffer descriptor to be located + * in non cached memory. + * + * If at some time this restriction doesn't apply anymore, just define + * CONFIG_4xx_DCACHE in the board config file and this code should setup + * everything correctly. + */ +#ifdef CONFIG_4xx_DCACHE +/* enable caching on SDRAM */ +#define MY_TLB_WORD2_I_ENABLE 0 +#else +/* disable caching on SDRAM */ +#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE +#endif /* CONFIG_4xx_DCACHE */ + +void dcbz_area(u32 start_address, u32 num_bytes); +#endif /* CONFIG_440 */ + +#define MAXRANKS 4 +#define MAXBXCF 4 + +#define MULDIV64(m1, m2, d) (u32)(((u64)(m1) * (u64)(m2)) / (u64)(d)) + +#if !defined(CONFIG_NAND_SPL) +/*-----------------------------------------------------------------------------+ + * sdram_memsize + *-----------------------------------------------------------------------------*/ +phys_size_t sdram_memsize(void) +{ + phys_size_t mem_size; + unsigned long mcopt2; + unsigned long mcstat; + unsigned long mb0cf; + unsigned long sdsz; + unsigned long i; + + mem_size = 0; + + mfsdram(SDRAM_MCOPT2, mcopt2); + mfsdram(SDRAM_MCSTAT, mcstat); + + /* DDR controller must be enabled and not in self-refresh. */ + /* Otherwise memsize is zero. */ + if (((mcopt2 & SDRAM_MCOPT2_DCEN_MASK) == SDRAM_MCOPT2_DCEN_ENABLE) + && ((mcopt2 & SDRAM_MCOPT2_SREN_MASK) == SDRAM_MCOPT2_SREN_EXIT) + && ((mcstat & (SDRAM_MCSTAT_MIC_MASK | SDRAM_MCSTAT_SRMS_MASK)) + == (SDRAM_MCSTAT_MIC_COMP | SDRAM_MCSTAT_SRMS_NOT_SF))) { + for (i = 0; i < MAXBXCF; i++) { + mfsdram(SDRAM_MB0CF + (i << 2), mb0cf); + /* Banks enabled */ + if ((mb0cf & SDRAM_BXCF_M_BE_MASK) == SDRAM_BXCF_M_BE_ENABLE) { +#if defined(CONFIG_440) + sdsz = mfdcr_any(SDRAM_R0BAS + i) & SDRAM_RXBAS_SDSZ_MASK; +#else + sdsz = mb0cf & SDRAM_RXBAS_SDSZ_MASK; +#endif + switch(sdsz) { + case SDRAM_RXBAS_SDSZ_8: + mem_size+=8; + break; + case SDRAM_RXBAS_SDSZ_16: + mem_size+=16; + break; + case SDRAM_RXBAS_SDSZ_32: + mem_size+=32; + break; + case SDRAM_RXBAS_SDSZ_64: + mem_size+=64; + break; + case SDRAM_RXBAS_SDSZ_128: + mem_size+=128; + break; + case SDRAM_RXBAS_SDSZ_256: + mem_size+=256; + break; + case SDRAM_RXBAS_SDSZ_512: + mem_size+=512; + break; + case SDRAM_RXBAS_SDSZ_1024: + mem_size+=1024; + break; + case SDRAM_RXBAS_SDSZ_2048: + mem_size+=2048; + break; + case SDRAM_RXBAS_SDSZ_4096: + mem_size+=4096; + break; + default: + printf("WARNING: Unsupported bank size (SDSZ=0x%lx)!\n" + , sdsz); + mem_size=0; + break; + } + } + } + } + + return mem_size << 20; +} + +/*-----------------------------------------------------------------------------+ + * is_ecc_enabled + *-----------------------------------------------------------------------------*/ +static unsigned long is_ecc_enabled(void) +{ + unsigned long val; + + mfsdram(SDRAM_MCOPT1, val); + + return SDRAM_MCOPT1_MCHK_CHK_DECODE(val); +} + +/*-----------------------------------------------------------------------------+ + * board_add_ram_info + *-----------------------------------------------------------------------------*/ +void board_add_ram_info(int use_default) +{ + PPC4xx_SYS_INFO board_cfg; + u32 val; + + if (is_ecc_enabled()) + puts(" (ECC"); + else + puts(" (ECC not"); + + get_sys_info(&board_cfg); + +#if defined(CONFIG_405EX) + val = board_cfg.freqPLB; +#else + mfsdr(SDR0_DDR0, val); + val = MULDIV64((board_cfg.freqPLB), SDR0_DDR0_DDRM_DECODE(val), 1); +#endif + printf(" enabled, %d MHz", (val * 2) / 1000000); + + mfsdram(SDRAM_MMODE, val); + val = (val & SDRAM_MMODE_DCL_MASK) >> 4; + printf(", CL%d)", val); +} +#endif /* !CONFIG_NAND_SPL */ + +#if defined(CONFIG_SPD_EEPROM) + +/*-----------------------------------------------------------------------------+ + * Defines + *-----------------------------------------------------------------------------*/ +#ifndef TRUE +#define TRUE 1 +#endif +#ifndef FALSE +#define FALSE 0 +#endif + +#define SDRAM_DDR1 1 +#define SDRAM_DDR2 2 +#define SDRAM_NONE 0 + +#define MAXDIMMS 2 +#define MAX_SPD_BYTES 256 /* Max number of bytes on the DIMM's SPD EEPROM */ + +#define ONE_BILLION 1000000000 + +#define CMD_NOP (7 << 19) +#define CMD_PRECHARGE (2 << 19) +#define CMD_REFRESH (1 << 19) +#define CMD_EMR (0 << 19) +#define CMD_READ (5 << 19) +#define CMD_WRITE (4 << 19) + +#define SELECT_MR (0 << 16) +#define SELECT_EMR (1 << 16) +#define SELECT_EMR2 (2 << 16) +#define SELECT_EMR3 (3 << 16) + +/* MR */ +#define DLL_RESET 0x00000100 + +#define WRITE_RECOV_2 (1 << 9) +#define WRITE_RECOV_3 (2 << 9) +#define WRITE_RECOV_4 (3 << 9) +#define WRITE_RECOV_5 (4 << 9) +#define WRITE_RECOV_6 (5 << 9) + +#define BURST_LEN_4 0x00000002 + +/* EMR */ +#define ODT_0_OHM 0x00000000 +#define ODT_50_OHM 0x00000044 +#define ODT_75_OHM 0x00000004 +#define ODT_150_OHM 0x00000040 + +#define ODS_FULL 0x00000000 +#define ODS_REDUCED 0x00000002 +#define OCD_CALIB_DEF 0x00000380 + +/* defines for ODT (On Die Termination) of the 440SP(e) DDR2 controller */ +#define ODT_EB0R (0x80000000 >> 8) +#define ODT_EB0W (0x80000000 >> 7) +#define CALC_ODT_R(n) (ODT_EB0R << (n << 1)) +#define CALC_ODT_W(n) (ODT_EB0W << (n << 1)) +#define CALC_ODT_RW(n) (CALC_ODT_R(n) | CALC_ODT_W(n)) + +/* Defines for the Read Cycle Delay test */ +#define NUMMEMTESTS 8 +#define NUMMEMWORDS 8 +#define NUMLOOPS 64 /* memory test loops */ + +/* + * Newer PPC's like 440SPe, 460EX/GT can be equipped with more than 2GB of SDRAM. + * To support such configurations, we "only" map the first 2GB via the TLB's. We + * need some free virtual address space for the remaining peripherals like, SoC + * devices, FLASH etc. + * + * Note that ECC is currently not supported on configurations with more than 2GB + * SDRAM. This is because we only map the first 2GB on such systems, and therefore + * the ECC parity byte of the remaining area can't be written. + */ + +/* + * Board-specific Platform code can reimplement spd_ddr_init_hang () if needed + */ +void __spd_ddr_init_hang (void) +{ + hang (); +} +void spd_ddr_init_hang (void) __attribute__((weak, alias("__spd_ddr_init_hang"))); + +/* + * To provide an interface for board specific config values in this common + * DDR setup code, we implement he "weak" default functions here. They return + * the default value back to the caller. + * + * Please see include/configs/yucca.h for an example fora board specific + * implementation. + */ +u32 __ddr_wrdtr(u32 default_val) +{ + return default_val; +} +u32 ddr_wrdtr(u32) __attribute__((weak, alias("__ddr_wrdtr"))); + +u32 __ddr_clktr(u32 default_val) +{ + return default_val; +} +u32 ddr_clktr(u32) __attribute__((weak, alias("__ddr_clktr"))); + + +/* Private Structure Definitions */ + +/* enum only to ease code for cas latency setting */ +typedef enum ddr_cas_id { + DDR_CAS_2 = 20, + DDR_CAS_2_5 = 25, + DDR_CAS_3 = 30, + DDR_CAS_4 = 40, + DDR_CAS_5 = 50 +} ddr_cas_id_t; + +/*-----------------------------------------------------------------------------+ + * Prototypes + *-----------------------------------------------------------------------------*/ +static void get_spd_info(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void check_mem_type(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void check_frequency(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void check_rank_number(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void check_voltage_type(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void program_memory_queue(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void program_codt(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void program_mode(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks, + ddr_cas_id_t *selected_cas, + int *write_recovery); +static void program_tr(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void program_rtr(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void program_bxcf(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void program_copt1(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +static void program_initplr(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks, + ddr_cas_id_t selected_cas, + int write_recovery); +#ifdef CONFIG_DDR_ECC +static void program_ecc(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks, + unsigned long tlb_word2_i_value); +#endif +#if !defined(CONFIG_PPC4xx_DDR_AUTOCALIBRATION) +static void program_DQS_calibration(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks); +#ifdef HARD_CODED_DQS /* calibration test with hardvalues */ +static void test(void); +#else +static void DQS_calibration_process(void); +#endif +#endif +int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); + +static unsigned char spd_read(uchar chip, uint addr) +{ + unsigned char data[2]; + + if (i2c_probe(chip) == 0) + if (i2c_read(chip, addr, 1, data, 1) == 0) + return data[0]; + + return 0; +} + +/*-----------------------------------------------------------------------------+ + * initdram. Initializes the 440SP Memory Queue and DDR SDRAM controller. + * Note: This routine runs from flash with a stack set up in the chip's + * sram space. It is important that the routine does not require .sbss, .bss or + * .data sections. It also cannot call routines that require these sections. + *-----------------------------------------------------------------------------*/ +/*----------------------------------------------------------------------------- + * Function: initdram + * Description: Configures SDRAM memory banks for DDR operation. + * Auto Memory Configuration option reads the DDR SDRAM EEPROMs + * via the IIC bus and then configures the DDR SDRAM memory + * banks appropriately. If Auto Memory Configuration is + * not used, it is assumed that no DIMM is plugged + *-----------------------------------------------------------------------------*/ +phys_size_t initdram(int board_type) +{ + unsigned char iic0_dimm_addr[] = SPD_EEPROM_ADDRESS; + unsigned char spd0[MAX_SPD_BYTES]; + unsigned char spd1[MAX_SPD_BYTES]; + unsigned char *dimm_spd[MAXDIMMS]; + unsigned long dimm_populated[MAXDIMMS] = {SDRAM_NONE, SDRAM_NONE}; + unsigned long num_dimm_banks; /* on board dimm banks */ + unsigned long val; + ddr_cas_id_t selected_cas = DDR_CAS_5; /* preset to silence compiler */ + int write_recovery; + phys_size_t dram_size = 0; + + num_dimm_banks = sizeof(iic0_dimm_addr); + + /*------------------------------------------------------------------ + * Set up an array of SPD matrixes. + *-----------------------------------------------------------------*/ + dimm_spd[0] = spd0; + dimm_spd[1] = spd1; + + /*------------------------------------------------------------------ + * Reset the DDR-SDRAM controller. + *-----------------------------------------------------------------*/ + mtsdr(SDR0_SRST, (0x80000000 >> 10)); + mtsdr(SDR0_SRST, 0x00000000); + + /* + * Make sure I2C controller is initialized + * before continuing. + */ + + /* switch to correct I2C bus */ + I2C_SET_BUS(CONFIG_SYS_SPD_BUS_NUM); + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + + /*------------------------------------------------------------------ + * Clear out the serial presence detect buffers. + * Perform IIC reads from the dimm. Fill in the spds. + * Check to see if the dimm slots are populated + *-----------------------------------------------------------------*/ + get_spd_info(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /*------------------------------------------------------------------ + * Check the memory type for the dimms plugged. + *-----------------------------------------------------------------*/ + check_mem_type(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /*------------------------------------------------------------------ + * Check the frequency supported for the dimms plugged. + *-----------------------------------------------------------------*/ + check_frequency(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /*------------------------------------------------------------------ + * Check the total rank number. + *-----------------------------------------------------------------*/ + check_rank_number(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /*------------------------------------------------------------------ + * Check the voltage type for the dimms plugged. + *-----------------------------------------------------------------*/ + check_voltage_type(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /*------------------------------------------------------------------ + * Program SDRAM controller options 2 register + * Except Enabling of the memory controller. + *-----------------------------------------------------------------*/ + mfsdram(SDRAM_MCOPT2, val); + mtsdram(SDRAM_MCOPT2, + (val & + ~(SDRAM_MCOPT2_SREN_MASK | SDRAM_MCOPT2_PMEN_MASK | + SDRAM_MCOPT2_IPTR_MASK | SDRAM_MCOPT2_XSRP_MASK | + SDRAM_MCOPT2_ISIE_MASK)) + | (SDRAM_MCOPT2_SREN_ENTER | SDRAM_MCOPT2_PMEN_DISABLE | + SDRAM_MCOPT2_IPTR_IDLE | SDRAM_MCOPT2_XSRP_ALLOW | + SDRAM_MCOPT2_ISIE_ENABLE)); + + /*------------------------------------------------------------------ + * Program SDRAM controller options 1 register + * Note: Does not enable the memory controller. + *-----------------------------------------------------------------*/ + program_copt1(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /*------------------------------------------------------------------ + * Set the SDRAM Controller On Die Termination Register + *-----------------------------------------------------------------*/ + program_codt(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /*------------------------------------------------------------------ + * Program SDRAM refresh register. + *-----------------------------------------------------------------*/ + program_rtr(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /*------------------------------------------------------------------ + * Program SDRAM mode register. + *-----------------------------------------------------------------*/ + program_mode(dimm_populated, iic0_dimm_addr, num_dimm_banks, + &selected_cas, &write_recovery); + + /*------------------------------------------------------------------ + * Set the SDRAM Write Data/DM/DQS Clock Timing Reg + *-----------------------------------------------------------------*/ + mfsdram(SDRAM_WRDTR, val); + mtsdram(SDRAM_WRDTR, (val & ~(SDRAM_WRDTR_LLWP_MASK | SDRAM_WRDTR_WTR_MASK)) | + ddr_wrdtr(SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_90_DEG_ADV)); + + /*------------------------------------------------------------------ + * Set the SDRAM Clock Timing Register + *-----------------------------------------------------------------*/ + mfsdram(SDRAM_CLKTR, val); + mtsdram(SDRAM_CLKTR, (val & ~SDRAM_CLKTR_CLKP_MASK) | + ddr_clktr(SDRAM_CLKTR_CLKP_0_DEG)); + + /*------------------------------------------------------------------ + * Program the BxCF registers. + *-----------------------------------------------------------------*/ + program_bxcf(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /*------------------------------------------------------------------ + * Program SDRAM timing registers. + *-----------------------------------------------------------------*/ + program_tr(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /*------------------------------------------------------------------ + * Set the Extended Mode register + *-----------------------------------------------------------------*/ + mfsdram(SDRAM_MEMODE, val); + mtsdram(SDRAM_MEMODE, + (val & ~(SDRAM_MEMODE_DIC_MASK | SDRAM_MEMODE_DLL_MASK | + SDRAM_MEMODE_RTT_MASK | SDRAM_MEMODE_DQS_MASK)) | + (SDRAM_MEMODE_DIC_NORMAL | SDRAM_MEMODE_DLL_ENABLE + | SDRAM_MEMODE_RTT_150OHM | SDRAM_MEMODE_DQS_ENABLE)); + + /*------------------------------------------------------------------ + * Program Initialization preload registers. + *-----------------------------------------------------------------*/ + program_initplr(dimm_populated, iic0_dimm_addr, num_dimm_banks, + selected_cas, write_recovery); + + /*------------------------------------------------------------------ + * Delay to ensure 200usec have elapsed since reset. + *-----------------------------------------------------------------*/ + udelay(400); + + /*------------------------------------------------------------------ + * Set the memory queue core base addr. + *-----------------------------------------------------------------*/ + program_memory_queue(dimm_populated, iic0_dimm_addr, num_dimm_banks); + + /*------------------------------------------------------------------ + * Program SDRAM controller options 2 register + * Enable the memory controller. + *-----------------------------------------------------------------*/ + mfsdram(SDRAM_MCOPT2, val); + mtsdram(SDRAM_MCOPT2, + (val & ~(SDRAM_MCOPT2_SREN_MASK | SDRAM_MCOPT2_DCEN_MASK | + SDRAM_MCOPT2_IPTR_MASK | SDRAM_MCOPT2_ISIE_MASK)) | + SDRAM_MCOPT2_IPTR_EXECUTE); + + /*------------------------------------------------------------------ + * Wait for IPTR_EXECUTE init sequence to complete. + *-----------------------------------------------------------------*/ + do { + mfsdram(SDRAM_MCSTAT, val); + } while ((val & SDRAM_MCSTAT_MIC_MASK) == SDRAM_MCSTAT_MIC_NOTCOMP); + + /* enable the controller only after init sequence completes */ + mfsdram(SDRAM_MCOPT2, val); + mtsdram(SDRAM_MCOPT2, (val | SDRAM_MCOPT2_DCEN_ENABLE)); + + /* Make sure delay-line calibration is done before proceeding */ + do { + mfsdram(SDRAM_DLCR, val); + } while (!(val & SDRAM_DLCR_DLCS_COMPLETE)); + + /* get installed memory size */ + dram_size = sdram_memsize(); + + /* + * Limit size to 2GB + */ + if (dram_size > CONFIG_MAX_MEM_MAPPED) + dram_size = CONFIG_MAX_MEM_MAPPED; + + /* and program tlb entries for this size (dynamic) */ + + /* + * Program TLB entries with caches enabled, for best performace + * while auto-calibrating and ECC generation + */ + program_tlb(0, 0, dram_size, 0); + + /*------------------------------------------------------------------ + * DQS calibration. + *-----------------------------------------------------------------*/ +#if defined(CONFIG_PPC4xx_DDR_AUTOCALIBRATION) + DQS_autocalibration(); +#else + program_DQS_calibration(dimm_populated, iic0_dimm_addr, num_dimm_banks); +#endif + +#ifdef CONFIG_DDR_ECC + /*------------------------------------------------------------------ + * If ecc is enabled, initialize the parity bits. + *-----------------------------------------------------------------*/ + program_ecc(dimm_populated, iic0_dimm_addr, num_dimm_banks, 0); +#endif + + /* + * Now after initialization (auto-calibration and ECC generation) + * remove the TLB entries with caches enabled and program again with + * desired cache functionality + */ + remove_tlb(0, dram_size); + program_tlb(0, 0, dram_size, MY_TLB_WORD2_I_ENABLE); + + ppc4xx_ibm_ddr2_register_dump(); + + /* + * Clear potential errors resulting from auto-calibration. + * If not done, then we could get an interrupt later on when + * exceptions are enabled. + */ + set_mcsr(get_mcsr()); + + return sdram_memsize(); +} + +static void get_spd_info(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long dimm_found; + unsigned char num_of_bytes; + unsigned char total_size; + + dimm_found = FALSE; + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + num_of_bytes = 0; + total_size = 0; + + num_of_bytes = spd_read(iic0_dimm_addr[dimm_num], 0); + debug("\nspd_read(0x%x) returned %d\n", + iic0_dimm_addr[dimm_num], num_of_bytes); + total_size = spd_read(iic0_dimm_addr[dimm_num], 1); + debug("spd_read(0x%x) returned %d\n", + iic0_dimm_addr[dimm_num], total_size); + + if ((num_of_bytes != 0) && (total_size != 0)) { + dimm_populated[dimm_num] = TRUE; + dimm_found = TRUE; + debug("DIMM slot %lu: populated\n", dimm_num); + } else { + dimm_populated[dimm_num] = FALSE; + debug("DIMM slot %lu: Not populated\n", dimm_num); + } + } + + if (dimm_found == FALSE) { + printf("ERROR - No memory installed. Install a DDR-SDRAM DIMM.\n\n"); + spd_ddr_init_hang (); + } +} + + +/*------------------------------------------------------------------ + * For the memory DIMMs installed, this routine verifies that they + * really are DDR specific DIMMs. + *-----------------------------------------------------------------*/ +static void check_mem_type(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long dimm_type; + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] == TRUE) { + dimm_type = spd_read(iic0_dimm_addr[dimm_num], 2); + switch (dimm_type) { + case 1: + printf("ERROR: Standard Fast Page Mode DRAM DIMM detected in " + "slot %d.\n", (unsigned int)dimm_num); + printf("Only DDR and DDR2 SDRAM DIMMs are supported.\n"); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + break; + case 2: + printf("ERROR: EDO DIMM detected in slot %d.\n", + (unsigned int)dimm_num); + printf("Only DDR and DDR2 SDRAM DIMMs are supported.\n"); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + break; + case 3: + printf("ERROR: Pipelined Nibble DIMM detected in slot %d.\n", + (unsigned int)dimm_num); + printf("Only DDR and DDR2 SDRAM DIMMs are supported.\n"); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + break; + case 4: + printf("ERROR: SDRAM DIMM detected in slot %d.\n", + (unsigned int)dimm_num); + printf("Only DDR and DDR2 SDRAM DIMMs are supported.\n"); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + break; + case 5: + printf("ERROR: Multiplexed ROM DIMM detected in slot %d.\n", + (unsigned int)dimm_num); + printf("Only DDR and DDR2 SDRAM DIMMs are supported.\n"); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + break; + case 6: + printf("ERROR: SGRAM DIMM detected in slot %d.\n", + (unsigned int)dimm_num); + printf("Only DDR and DDR2 SDRAM DIMMs are supported.\n"); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + break; + case 7: + debug("DIMM slot %lu: DDR1 SDRAM detected\n", dimm_num); + dimm_populated[dimm_num] = SDRAM_DDR1; + break; + case 8: + debug("DIMM slot %lu: DDR2 SDRAM detected\n", dimm_num); + dimm_populated[dimm_num] = SDRAM_DDR2; + break; + default: + printf("ERROR: Unknown DIMM detected in slot %d.\n", + (unsigned int)dimm_num); + printf("Only DDR1 and DDR2 SDRAM DIMMs are supported.\n"); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + break; + } + } + } + for (dimm_num = 1; dimm_num < num_dimm_banks; dimm_num++) { + if ((dimm_populated[dimm_num-1] != SDRAM_NONE) + && (dimm_populated[dimm_num] != SDRAM_NONE) + && (dimm_populated[dimm_num-1] != dimm_populated[dimm_num])) { + printf("ERROR: DIMM's DDR1 and DDR2 type can not be mixed.\n"); + spd_ddr_init_hang (); + } + } +} + +/*------------------------------------------------------------------ + * For the memory DIMMs installed, this routine verifies that + * frequency previously calculated is supported. + *-----------------------------------------------------------------*/ +static void check_frequency(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long tcyc_reg; + unsigned long cycle_time; + unsigned long calc_cycle_time; + unsigned long sdram_freq; + unsigned long sdr_ddrpll; + PPC4xx_SYS_INFO board_cfg; + + /*------------------------------------------------------------------ + * Get the board configuration info. + *-----------------------------------------------------------------*/ + get_sys_info(&board_cfg); + + mfsdr(SDR0_DDR0, sdr_ddrpll); + sdram_freq = ((board_cfg.freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll)); + + /* + * calc_cycle_time is calculated from DDR frequency set by board/chip + * and is expressed in multiple of 10 picoseconds + * to match the way DIMM cycle time is calculated below. + */ + calc_cycle_time = MULDIV64(ONE_BILLION, 100, sdram_freq); + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] != SDRAM_NONE) { + tcyc_reg = spd_read(iic0_dimm_addr[dimm_num], 9); + /* + * Byte 9, Cycle time for CAS Latency=X, is split into two nibbles: + * the higher order nibble (bits 4-7) designates the cycle time + * to a granularity of 1ns; + * the value presented by the lower order nibble (bits 0-3) + * has a granularity of .1ns and is added to the value designated + * by the higher nibble. In addition, four lines of the lower order + * nibble are assigned to support +.25,+.33, +.66 and +.75. + */ + /* Convert from hex to decimal */ + if ((tcyc_reg & 0x0F) == 0x0D) + cycle_time = (((tcyc_reg & 0xF0) >> 4) * 100) + 75; + else if ((tcyc_reg & 0x0F) == 0x0C) + cycle_time = (((tcyc_reg & 0xF0) >> 4) * 100) + 66; + else if ((tcyc_reg & 0x0F) == 0x0B) + cycle_time = (((tcyc_reg & 0xF0) >> 4) * 100) + 33; + else if ((tcyc_reg & 0x0F) == 0x0A) + cycle_time = (((tcyc_reg & 0xF0) >> 4) * 100) + 25; + else + cycle_time = (((tcyc_reg & 0xF0) >> 4) * 100) + + ((tcyc_reg & 0x0F)*10); + debug("cycle_time=%lu [10 picoseconds]\n", cycle_time); + + if (cycle_time > (calc_cycle_time + 10)) { + /* + * the provided sdram cycle_time is too small + * for the available DIMM cycle_time. + * The additionnal 100ps is here to accept a small incertainty. + */ + printf("ERROR: DRAM DIMM detected with cycle_time %d ps in " + "slot %d \n while calculated cycle time is %d ps.\n", + (unsigned int)(cycle_time*10), + (unsigned int)dimm_num, + (unsigned int)(calc_cycle_time*10)); + printf("Replace the DIMM, or change DDR frequency via " + "strapping bits.\n\n"); + spd_ddr_init_hang (); + } + } + } +} + +/*------------------------------------------------------------------ + * For the memory DIMMs installed, this routine verifies two + * ranks/banks maximum are availables. + *-----------------------------------------------------------------*/ +static void check_rank_number(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long dimm_rank; + unsigned long total_rank = 0; + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] != SDRAM_NONE) { + dimm_rank = spd_read(iic0_dimm_addr[dimm_num], 5); + if (((unsigned long)spd_read(iic0_dimm_addr[dimm_num], 2)) == 0x08) + dimm_rank = (dimm_rank & 0x0F) +1; + else + dimm_rank = dimm_rank & 0x0F; + + + if (dimm_rank > MAXRANKS) { + printf("ERROR: DRAM DIMM detected with %lu ranks in " + "slot %lu is not supported.\n", dimm_rank, dimm_num); + printf("Only %d ranks are supported for all DIMM.\n", MAXRANKS); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + } else + total_rank += dimm_rank; + } + if (total_rank > MAXRANKS) { + printf("ERROR: DRAM DIMM detected with a total of %d ranks " + "for all slots.\n", (unsigned int)total_rank); + printf("Only %d ranks are supported for all DIMM.\n", MAXRANKS); + printf("Remove one of the DIMM modules.\n\n"); + spd_ddr_init_hang (); + } + } +} + +/*------------------------------------------------------------------ + * only support 2.5V modules. + * This routine verifies this. + *-----------------------------------------------------------------*/ +static void check_voltage_type(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long voltage_type; + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] != SDRAM_NONE) { + voltage_type = spd_read(iic0_dimm_addr[dimm_num], 8); + switch (voltage_type) { + case 0x00: + printf("ERROR: Only DIMMs DDR 2.5V or DDR2 1.8V are supported.\n"); + printf("This DIMM is 5.0 Volt/TTL.\n"); + printf("Replace the DIMM module in slot %d with a supported DIMM.\n\n", + (unsigned int)dimm_num); + spd_ddr_init_hang (); + break; + case 0x01: + printf("ERROR: Only DIMMs DDR 2.5V or DDR2 1.8V are supported.\n"); + printf("This DIMM is LVTTL.\n"); + printf("Replace the DIMM module in slot %d with a supported DIMM.\n\n", + (unsigned int)dimm_num); + spd_ddr_init_hang (); + break; + case 0x02: + printf("ERROR: Only DIMMs DDR 2.5V or DDR2 1.8V are supported.\n"); + printf("This DIMM is 1.5 Volt.\n"); + printf("Replace the DIMM module in slot %d with a supported DIMM.\n\n", + (unsigned int)dimm_num); + spd_ddr_init_hang (); + break; + case 0x03: + printf("ERROR: Only DIMMs DDR 2.5V or DDR2 1.8V are supported.\n"); + printf("This DIMM is 3.3 Volt/TTL.\n"); + printf("Replace the DIMM module in slot %d with a supported DIMM.\n\n", + (unsigned int)dimm_num); + spd_ddr_init_hang (); + break; + case 0x04: + /* 2.5 Voltage only for DDR1 */ + break; + case 0x05: + /* 1.8 Voltage only for DDR2 */ + break; + default: + printf("ERROR: Only DIMMs DDR 2.5V or DDR2 1.8V are supported.\n"); + printf("Replace the DIMM module in slot %d with a supported DIMM.\n\n", + (unsigned int)dimm_num); + spd_ddr_init_hang (); + break; + } + } + } +} + +/*-----------------------------------------------------------------------------+ + * program_copt1. + *-----------------------------------------------------------------------------*/ +static void program_copt1(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long mcopt1; + unsigned long ecc_enabled; + unsigned long ecc = 0; + unsigned long data_width = 0; + unsigned long dimm_32bit; + unsigned long dimm_64bit; + unsigned long registered = 0; + unsigned long attribute = 0; + unsigned long buf0, buf1; /* TODO: code to be changed for IOP1.6 to support 4 DIMMs */ + unsigned long bankcount; + unsigned long ddrtype; + unsigned long val; + +#ifdef CONFIG_DDR_ECC + ecc_enabled = TRUE; +#else + ecc_enabled = FALSE; +#endif + dimm_32bit = FALSE; + dimm_64bit = FALSE; + buf0 = FALSE; + buf1 = FALSE; + + /*------------------------------------------------------------------ + * Set memory controller options reg 1, SDRAM_MCOPT1. + *-----------------------------------------------------------------*/ + mfsdram(SDRAM_MCOPT1, val); + mcopt1 = val & ~(SDRAM_MCOPT1_MCHK_MASK | SDRAM_MCOPT1_RDEN_MASK | + SDRAM_MCOPT1_PMU_MASK | SDRAM_MCOPT1_DMWD_MASK | + SDRAM_MCOPT1_UIOS_MASK | SDRAM_MCOPT1_BCNT_MASK | + SDRAM_MCOPT1_DDR_TYPE_MASK | SDRAM_MCOPT1_RWOO_MASK | + SDRAM_MCOPT1_WOOO_MASK | SDRAM_MCOPT1_DCOO_MASK | + SDRAM_MCOPT1_DREF_MASK); + + mcopt1 |= SDRAM_MCOPT1_QDEP; + mcopt1 |= SDRAM_MCOPT1_PMU_OPEN; + mcopt1 |= SDRAM_MCOPT1_RWOO_DISABLED; + mcopt1 |= SDRAM_MCOPT1_WOOO_DISABLED; + mcopt1 |= SDRAM_MCOPT1_DCOO_DISABLED; + mcopt1 |= SDRAM_MCOPT1_DREF_NORMAL; + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] != SDRAM_NONE) { + /* test ecc support */ + ecc = (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 11); + if (ecc != 0x02) /* ecc not supported */ + ecc_enabled = FALSE; + + /* test bank count */ + bankcount = (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 17); + if (bankcount == 0x04) /* bank count = 4 */ + mcopt1 |= SDRAM_MCOPT1_4_BANKS; + else /* bank count = 8 */ + mcopt1 |= SDRAM_MCOPT1_8_BANKS; + + /* test DDR type */ + ddrtype = (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 2); + /* test for buffered/unbuffered, registered, differential clocks */ + registered = (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 20); + attribute = (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 21); + + /* TODO: code to be changed for IOP1.6 to support 4 DIMMs */ + if (dimm_num == 0) { + if (dimm_populated[dimm_num] == SDRAM_DDR1) /* DDR1 type */ + mcopt1 |= SDRAM_MCOPT1_DDR1_TYPE; + if (dimm_populated[dimm_num] == SDRAM_DDR2) /* DDR2 type */ + mcopt1 |= SDRAM_MCOPT1_DDR2_TYPE; + if (registered == 1) { /* DDR2 always buffered */ + /* TODO: what about above comments ? */ + mcopt1 |= SDRAM_MCOPT1_RDEN; + buf0 = TRUE; + } else { + /* TODO: the mask 0x02 doesn't match Samsung def for byte 21. */ + if ((attribute & 0x02) == 0x00) { + /* buffered not supported */ + buf0 = FALSE; + } else { + mcopt1 |= SDRAM_MCOPT1_RDEN; + buf0 = TRUE; + } + } + } + else if (dimm_num == 1) { + if (dimm_populated[dimm_num] == SDRAM_DDR1) /* DDR1 type */ + mcopt1 |= SDRAM_MCOPT1_DDR1_TYPE; + if (dimm_populated[dimm_num] == SDRAM_DDR2) /* DDR2 type */ + mcopt1 |= SDRAM_MCOPT1_DDR2_TYPE; + if (registered == 1) { + /* DDR2 always buffered */ + mcopt1 |= SDRAM_MCOPT1_RDEN; + buf1 = TRUE; + } else { + if ((attribute & 0x02) == 0x00) { + /* buffered not supported */ + buf1 = FALSE; + } else { + mcopt1 |= SDRAM_MCOPT1_RDEN; + buf1 = TRUE; + } + } + } + + /* Note that for DDR2 the byte 7 is reserved, but OK to keep code as is. */ + data_width = (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 6) + + (((unsigned long)spd_read(iic0_dimm_addr[dimm_num], 7)) << 8); + + switch (data_width) { + case 72: + case 64: + dimm_64bit = TRUE; + break; + case 40: + case 32: + dimm_32bit = TRUE; + break; + default: + printf("WARNING: Detected a DIMM with a data width of %lu bits.\n", + data_width); + printf("Only DIMMs with 32 or 64 bit DDR-SDRAM widths are supported.\n"); + break; + } + } + } + + /* verify matching properties */ + if ((dimm_populated[0] != SDRAM_NONE) && (dimm_populated[1] != SDRAM_NONE)) { + if (buf0 != buf1) { + printf("ERROR: DIMM's buffered/unbuffered, registered, clocking don't match.\n"); + spd_ddr_init_hang (); + } + } + + if ((dimm_64bit == TRUE) && (dimm_32bit == TRUE)) { + printf("ERROR: Cannot mix 32 bit and 64 bit DDR-SDRAM DIMMs together.\n"); + spd_ddr_init_hang (); + } + else if ((dimm_64bit == TRUE) && (dimm_32bit == FALSE)) { + mcopt1 |= SDRAM_MCOPT1_DMWD_64; + } else if ((dimm_64bit == FALSE) && (dimm_32bit == TRUE)) { + mcopt1 |= SDRAM_MCOPT1_DMWD_32; + } else { + printf("ERROR: Please install only 32 or 64 bit DDR-SDRAM DIMMs.\n\n"); + spd_ddr_init_hang (); + } + + if (ecc_enabled == TRUE) + mcopt1 |= SDRAM_MCOPT1_MCHK_GEN; + else + mcopt1 |= SDRAM_MCOPT1_MCHK_NON; + + mtsdram(SDRAM_MCOPT1, mcopt1); +} + +/*-----------------------------------------------------------------------------+ + * program_codt. + *-----------------------------------------------------------------------------*/ +static void program_codt(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long codt; + unsigned long modt0 = 0; + unsigned long modt1 = 0; + unsigned long modt2 = 0; + unsigned long modt3 = 0; + unsigned char dimm_num; + unsigned char dimm_rank; + unsigned char total_rank = 0; + unsigned char total_dimm = 0; + unsigned char dimm_type = 0; + unsigned char firstSlot = 0; + + /*------------------------------------------------------------------ + * Set the SDRAM Controller On Die Termination Register + *-----------------------------------------------------------------*/ + mfsdram(SDRAM_CODT, codt); + codt &= ~(SDRAM_CODT_DQS_SINGLE_END | SDRAM_CODT_CKSE_SINGLE_END); + codt |= SDRAM_CODT_IO_NMODE; + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] != SDRAM_NONE) { + dimm_rank = (unsigned long)spd_read(iic0_dimm_addr[dimm_num], 5); + if (((unsigned long)spd_read(iic0_dimm_addr[dimm_num], 2)) == 0x08) { + dimm_rank = (dimm_rank & 0x0F) + 1; + dimm_type = SDRAM_DDR2; + } else { + dimm_rank = dimm_rank & 0x0F; + dimm_type = SDRAM_DDR1; + } + + total_rank += dimm_rank; + total_dimm++; + if ((dimm_num == 0) && (total_dimm == 1)) + firstSlot = TRUE; + else + firstSlot = FALSE; + } + } + if (dimm_type == SDRAM_DDR2) { + codt |= SDRAM_CODT_DQS_1_8_V_DDR2; + if ((total_dimm == 1) && (firstSlot == TRUE)) { + if (total_rank == 1) { /* PUUU */ + codt |= CALC_ODT_R(0); + modt0 = CALC_ODT_W(0); + modt1 = 0x00000000; + modt2 = 0x00000000; + modt3 = 0x00000000; + } + if (total_rank == 2) { /* PPUU */ + codt |= CALC_ODT_R(0) | CALC_ODT_R(1); + modt0 = CALC_ODT_W(0) | CALC_ODT_W(1); + modt1 = 0x00000000; + modt2 = 0x00000000; + modt3 = 0x00000000; + } + } else if ((total_dimm == 1) && (firstSlot != TRUE)) { + if (total_rank == 1) { /* UUPU */ + codt |= CALC_ODT_R(2); + modt0 = 0x00000000; + modt1 = 0x00000000; + modt2 = CALC_ODT_W(2); + modt3 = 0x00000000; + } + if (total_rank == 2) { /* UUPP */ + codt |= CALC_ODT_R(2) | CALC_ODT_R(3); + modt0 = 0x00000000; + modt1 = 0x00000000; + modt2 = CALC_ODT_W(2) | CALC_ODT_W(3); + modt3 = 0x00000000; + } + } + if (total_dimm == 2) { + if (total_rank == 2) { /* PUPU */ + codt |= CALC_ODT_R(0) | CALC_ODT_R(2); + modt0 = CALC_ODT_RW(2); + modt1 = 0x00000000; + modt2 = CALC_ODT_RW(0); + modt3 = 0x00000000; + } + if (total_rank == 4) { /* PPPP */ + codt |= CALC_ODT_R(0) | CALC_ODT_R(1) | + CALC_ODT_R(2) | CALC_ODT_R(3); + modt0 = CALC_ODT_RW(2) | CALC_ODT_RW(3); + modt1 = 0x00000000; + modt2 = CALC_ODT_RW(0) | CALC_ODT_RW(1); + modt3 = 0x00000000; + } + } + } else { + codt |= SDRAM_CODT_DQS_2_5_V_DDR1; + modt0 = 0x00000000; + modt1 = 0x00000000; + modt2 = 0x00000000; + modt3 = 0x00000000; + + if (total_dimm == 1) { + if (total_rank == 1) + codt |= 0x00800000; + if (total_rank == 2) + codt |= 0x02800000; + } + if (total_dimm == 2) { + if (total_rank == 2) + codt |= 0x08800000; + if (total_rank == 4) + codt |= 0x2a800000; + } + } + + debug("nb of dimm %d\n", total_dimm); + debug("nb of rank %d\n", total_rank); + if (total_dimm == 1) + debug("dimm in slot %d\n", firstSlot); + + mtsdram(SDRAM_CODT, codt); + mtsdram(SDRAM_MODT0, modt0); + mtsdram(SDRAM_MODT1, modt1); + mtsdram(SDRAM_MODT2, modt2); + mtsdram(SDRAM_MODT3, modt3); +} + +/*-----------------------------------------------------------------------------+ + * program_initplr. + *-----------------------------------------------------------------------------*/ +static void program_initplr(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks, + ddr_cas_id_t selected_cas, + int write_recovery) +{ + u32 cas = 0; + u32 odt = 0; + u32 ods = 0; + u32 mr; + u32 wr; + u32 emr; + u32 emr2; + u32 emr3; + int dimm_num; + int total_dimm = 0; + + /****************************************************** + ** Assumption: if more than one DIMM, all DIMMs are the same + ** as already checked in check_memory_type + ******************************************************/ + + if ((dimm_populated[0] == SDRAM_DDR1) || (dimm_populated[1] == SDRAM_DDR1)) { + mtsdram(SDRAM_INITPLR0, 0x81B80000); + mtsdram(SDRAM_INITPLR1, 0x81900400); + mtsdram(SDRAM_INITPLR2, 0x81810000); + mtsdram(SDRAM_INITPLR3, 0xff800162); + mtsdram(SDRAM_INITPLR4, 0x81900400); + mtsdram(SDRAM_INITPLR5, 0x86080000); + mtsdram(SDRAM_INITPLR6, 0x86080000); + mtsdram(SDRAM_INITPLR7, 0x81000062); + } else if ((dimm_populated[0] == SDRAM_DDR2) || (dimm_populated[1] == SDRAM_DDR2)) { + switch (selected_cas) { + case DDR_CAS_3: + cas = 3 << 4; + break; + case DDR_CAS_4: + cas = 4 << 4; + break; + case DDR_CAS_5: + cas = 5 << 4; + break; + default: + printf("ERROR: ucode error on selected_cas value %d", selected_cas); + spd_ddr_init_hang (); + break; + } + +#if 0 + /* + * ToDo - Still a problem with the write recovery: + * On the Corsair CM2X512-5400C4 module, setting write recovery + * in the INITPLR reg to the value calculated in program_mode() + * results in not correctly working DDR2 memory (crash after + * relocation). + * + * So for now, set the write recovery to 3. This seems to work + * on the Corair module too. + * + * 2007-03-01, sr + */ + switch (write_recovery) { + case 3: + wr = WRITE_RECOV_3; + break; + case 4: + wr = WRITE_RECOV_4; + break; + case 5: + wr = WRITE_RECOV_5; + break; + case 6: + wr = WRITE_RECOV_6; + break; + default: + printf("ERROR: write recovery not support (%d)", write_recovery); + spd_ddr_init_hang (); + break; + } +#else + wr = WRITE_RECOV_3; /* test-only, see description above */ +#endif + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) + if (dimm_populated[dimm_num] != SDRAM_NONE) + total_dimm++; + if (total_dimm == 1) { + odt = ODT_150_OHM; + ods = ODS_FULL; + } else if (total_dimm == 2) { + odt = ODT_75_OHM; + ods = ODS_REDUCED; + } else { + printf("ERROR: Unsupported number of DIMM's (%d)", total_dimm); + spd_ddr_init_hang (); + } + + mr = CMD_EMR | SELECT_MR | BURST_LEN_4 | wr | cas; + emr = CMD_EMR | SELECT_EMR | odt | ods; + emr2 = CMD_EMR | SELECT_EMR2; + emr3 = CMD_EMR | SELECT_EMR3; + /* NOP - Wait 106 MemClk cycles */ + mtsdram(SDRAM_INITPLR0, SDRAM_INITPLR_ENABLE | CMD_NOP | + SDRAM_INITPLR_IMWT_ENCODE(106)); + udelay(1000); + /* precharge 4 MemClk cycles */ + mtsdram(SDRAM_INITPLR1, SDRAM_INITPLR_ENABLE | CMD_PRECHARGE | + SDRAM_INITPLR_IMWT_ENCODE(4)); + /* EMR2 - Wait tMRD (2 MemClk cycles) */ + mtsdram(SDRAM_INITPLR2, SDRAM_INITPLR_ENABLE | emr2 | + SDRAM_INITPLR_IMWT_ENCODE(2)); + /* EMR3 - Wait tMRD (2 MemClk cycles) */ + mtsdram(SDRAM_INITPLR3, SDRAM_INITPLR_ENABLE | emr3 | + SDRAM_INITPLR_IMWT_ENCODE(2)); + /* EMR DLL ENABLE - Wait tMRD (2 MemClk cycles) */ + mtsdram(SDRAM_INITPLR4, SDRAM_INITPLR_ENABLE | emr | + SDRAM_INITPLR_IMWT_ENCODE(2)); + /* MR w/ DLL reset - 200 cycle wait for DLL reset */ + mtsdram(SDRAM_INITPLR5, SDRAM_INITPLR_ENABLE | mr | DLL_RESET | + SDRAM_INITPLR_IMWT_ENCODE(200)); + udelay(1000); + /* precharge 4 MemClk cycles */ + mtsdram(SDRAM_INITPLR6, SDRAM_INITPLR_ENABLE | CMD_PRECHARGE | + SDRAM_INITPLR_IMWT_ENCODE(4)); + /* Refresh 25 MemClk cycles */ + mtsdram(SDRAM_INITPLR7, SDRAM_INITPLR_ENABLE | CMD_REFRESH | + SDRAM_INITPLR_IMWT_ENCODE(25)); + /* Refresh 25 MemClk cycles */ + mtsdram(SDRAM_INITPLR8, SDRAM_INITPLR_ENABLE | CMD_REFRESH | + SDRAM_INITPLR_IMWT_ENCODE(25)); + /* Refresh 25 MemClk cycles */ + mtsdram(SDRAM_INITPLR9, SDRAM_INITPLR_ENABLE | CMD_REFRESH | + SDRAM_INITPLR_IMWT_ENCODE(25)); + /* Refresh 25 MemClk cycles */ + mtsdram(SDRAM_INITPLR10, SDRAM_INITPLR_ENABLE | CMD_REFRESH | + SDRAM_INITPLR_IMWT_ENCODE(25)); + /* MR w/o DLL reset - Wait tMRD (2 MemClk cycles) */ + mtsdram(SDRAM_INITPLR11, SDRAM_INITPLR_ENABLE | mr | + SDRAM_INITPLR_IMWT_ENCODE(2)); + /* EMR OCD Default - Wait tMRD (2 MemClk cycles) */ + mtsdram(SDRAM_INITPLR12, SDRAM_INITPLR_ENABLE | OCD_CALIB_DEF | + SDRAM_INITPLR_IMWT_ENCODE(2) | emr); + /* EMR OCD Exit */ + mtsdram(SDRAM_INITPLR13, SDRAM_INITPLR_ENABLE | emr | + SDRAM_INITPLR_IMWT_ENCODE(2)); + } else { + printf("ERROR: ucode error as unknown DDR type in program_initplr"); + spd_ddr_init_hang (); + } +} + +/*------------------------------------------------------------------ + * This routine programs the SDRAM_MMODE register. + * the selected_cas is an output parameter, that will be passed + * by caller to call the above program_initplr( ) + *-----------------------------------------------------------------*/ +static void program_mode(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks, + ddr_cas_id_t *selected_cas, + int *write_recovery) +{ + unsigned long dimm_num; + unsigned long sdram_ddr1; + unsigned long t_wr_ns; + unsigned long t_wr_clk; + unsigned long cas_bit; + unsigned long cas_index; + unsigned long sdram_freq; + unsigned long ddr_check; + unsigned long mmode; + unsigned long tcyc_reg; + unsigned long cycle_2_0_clk; + unsigned long cycle_2_5_clk; + unsigned long cycle_3_0_clk; + unsigned long cycle_4_0_clk; + unsigned long cycle_5_0_clk; + unsigned long max_2_0_tcyc_ns_x_100; + unsigned long max_2_5_tcyc_ns_x_100; + unsigned long max_3_0_tcyc_ns_x_100; + unsigned long max_4_0_tcyc_ns_x_100; + unsigned long max_5_0_tcyc_ns_x_100; + unsigned long cycle_time_ns_x_100[3]; + PPC4xx_SYS_INFO board_cfg; + unsigned char cas_2_0_available; + unsigned char cas_2_5_available; + unsigned char cas_3_0_available; + unsigned char cas_4_0_available; + unsigned char cas_5_0_available; + unsigned long sdr_ddrpll; + + /*------------------------------------------------------------------ + * Get the board configuration info. + *-----------------------------------------------------------------*/ + get_sys_info(&board_cfg); + + mfsdr(SDR0_DDR0, sdr_ddrpll); + sdram_freq = MULDIV64((board_cfg.freqPLB), SDR0_DDR0_DDRM_DECODE(sdr_ddrpll), 1); + debug("sdram_freq=%lu\n", sdram_freq); + + /*------------------------------------------------------------------ + * Handle the timing. We need to find the worst case timing of all + * the dimm modules installed. + *-----------------------------------------------------------------*/ + t_wr_ns = 0; + cas_2_0_available = TRUE; + cas_2_5_available = TRUE; + cas_3_0_available = TRUE; + cas_4_0_available = TRUE; + cas_5_0_available = TRUE; + max_2_0_tcyc_ns_x_100 = 10; + max_2_5_tcyc_ns_x_100 = 10; + max_3_0_tcyc_ns_x_100 = 10; + max_4_0_tcyc_ns_x_100 = 10; + max_5_0_tcyc_ns_x_100 = 10; + sdram_ddr1 = TRUE; + + /* loop through all the DIMM slots on the board */ + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + /* If a dimm is installed in a particular slot ... */ + if (dimm_populated[dimm_num] != SDRAM_NONE) { + if (dimm_populated[dimm_num] == SDRAM_DDR1) + sdram_ddr1 = TRUE; + else + sdram_ddr1 = FALSE; + + /* t_wr_ns = max(t_wr_ns, (unsigned long)dimm_spd[dimm_num][36] >> 2); */ /* not used in this loop. */ + cas_bit = spd_read(iic0_dimm_addr[dimm_num], 18); + debug("cas_bit[SPD byte 18]=%02lx\n", cas_bit); + + /* For a particular DIMM, grab the three CAS values it supports */ + for (cas_index = 0; cas_index < 3; cas_index++) { + switch (cas_index) { + case 0: + tcyc_reg = spd_read(iic0_dimm_addr[dimm_num], 9); + break; + case 1: + tcyc_reg = spd_read(iic0_dimm_addr[dimm_num], 23); + break; + default: + tcyc_reg = spd_read(iic0_dimm_addr[dimm_num], 25); + break; + } + + if ((tcyc_reg & 0x0F) >= 10) { + if ((tcyc_reg & 0x0F) == 0x0D) { + /* Convert from hex to decimal */ + cycle_time_ns_x_100[cas_index] = + (((tcyc_reg & 0xF0) >> 4) * 100) + 75; + } else { + printf("ERROR: SPD reported Tcyc is incorrect for DIMM " + "in slot %d\n", (unsigned int)dimm_num); + spd_ddr_init_hang (); + } + } else { + /* Convert from hex to decimal */ + cycle_time_ns_x_100[cas_index] = + (((tcyc_reg & 0xF0) >> 4) * 100) + + ((tcyc_reg & 0x0F)*10); + } + debug("cas_index=%lu: cycle_time_ns_x_100=%lu\n", cas_index, + cycle_time_ns_x_100[cas_index]); + } + + /* The rest of this routine determines if CAS 2.0, 2.5, 3.0, 4.0 and 5.0 are */ + /* supported for a particular DIMM. */ + cas_index = 0; + + if (sdram_ddr1) { + /* + * DDR devices use the following bitmask for CAS latency: + * Bit 7 6 5 4 3 2 1 0 + * TBD 4.0 3.5 3.0 2.5 2.0 1.5 1.0 + */ + if (((cas_bit & 0x40) == 0x40) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_4_0_tcyc_ns_x_100 = max(max_4_0_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); + cas_index++; + } else { + if (cas_index != 0) + cas_index++; + cas_4_0_available = FALSE; + } + + if (((cas_bit & 0x10) == 0x10) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_3_0_tcyc_ns_x_100 = max(max_3_0_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); + cas_index++; + } else { + if (cas_index != 0) + cas_index++; + cas_3_0_available = FALSE; + } + + if (((cas_bit & 0x08) == 0x08) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_2_5_tcyc_ns_x_100 = max(max_2_5_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); + cas_index++; + } else { + if (cas_index != 0) + cas_index++; + cas_2_5_available = FALSE; + } + + if (((cas_bit & 0x04) == 0x04) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_2_0_tcyc_ns_x_100 = max(max_2_0_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); + cas_index++; + } else { + if (cas_index != 0) + cas_index++; + cas_2_0_available = FALSE; + } + } else { + /* + * DDR2 devices use the following bitmask for CAS latency: + * Bit 7 6 5 4 3 2 1 0 + * TBD 6.0 5.0 4.0 3.0 2.0 TBD TBD + */ + if (((cas_bit & 0x20) == 0x20) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_5_0_tcyc_ns_x_100 = max(max_5_0_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); + cas_index++; + } else { + if (cas_index != 0) + cas_index++; + cas_5_0_available = FALSE; + } + + if (((cas_bit & 0x10) == 0x10) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_4_0_tcyc_ns_x_100 = max(max_4_0_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); + cas_index++; + } else { + if (cas_index != 0) + cas_index++; + cas_4_0_available = FALSE; + } + + if (((cas_bit & 0x08) == 0x08) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_3_0_tcyc_ns_x_100 = max(max_3_0_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); + cas_index++; + } else { + if (cas_index != 0) + cas_index++; + cas_3_0_available = FALSE; + } + } + } + } + + /*------------------------------------------------------------------ + * Set the SDRAM mode, SDRAM_MMODE + *-----------------------------------------------------------------*/ + mfsdram(SDRAM_MMODE, mmode); + mmode = mmode & ~(SDRAM_MMODE_WR_MASK | SDRAM_MMODE_DCL_MASK); + + /* add 10 here because of rounding problems */ + cycle_2_0_clk = MULDIV64(ONE_BILLION, 100, max_2_0_tcyc_ns_x_100) + 10; + cycle_2_5_clk = MULDIV64(ONE_BILLION, 100, max_2_5_tcyc_ns_x_100) + 10; + cycle_3_0_clk = MULDIV64(ONE_BILLION, 100, max_3_0_tcyc_ns_x_100) + 10; + cycle_4_0_clk = MULDIV64(ONE_BILLION, 100, max_4_0_tcyc_ns_x_100) + 10; + cycle_5_0_clk = MULDIV64(ONE_BILLION, 100, max_5_0_tcyc_ns_x_100) + 10; + debug("cycle_3_0_clk=%lu\n", cycle_3_0_clk); + debug("cycle_4_0_clk=%lu\n", cycle_4_0_clk); + debug("cycle_5_0_clk=%lu\n", cycle_5_0_clk); + + if (sdram_ddr1 == TRUE) { /* DDR1 */ + if ((cas_2_0_available == TRUE) && (sdram_freq <= cycle_2_0_clk)) { + mmode |= SDRAM_MMODE_DCL_DDR1_2_0_CLK; + *selected_cas = DDR_CAS_2; + } else if ((cas_2_5_available == TRUE) && (sdram_freq <= cycle_2_5_clk)) { + mmode |= SDRAM_MMODE_DCL_DDR1_2_5_CLK; + *selected_cas = DDR_CAS_2_5; + } else if ((cas_3_0_available == TRUE) && (sdram_freq <= cycle_3_0_clk)) { + mmode |= SDRAM_MMODE_DCL_DDR1_3_0_CLK; + *selected_cas = DDR_CAS_3; + } else { + printf("ERROR: Cannot find a supported CAS latency with the installed DIMMs.\n"); + printf("Only DIMMs DDR1 with CAS latencies of 2.0, 2.5, and 3.0 are supported.\n"); + printf("Make sure the PLB speed is within the supported range of the DIMMs.\n\n"); + spd_ddr_init_hang (); + } + } else { /* DDR2 */ + debug("cas_3_0_available=%d\n", cas_3_0_available); + debug("cas_4_0_available=%d\n", cas_4_0_available); + debug("cas_5_0_available=%d\n", cas_5_0_available); + if ((cas_3_0_available == TRUE) && (sdram_freq <= cycle_3_0_clk)) { + mmode |= SDRAM_MMODE_DCL_DDR2_3_0_CLK; + *selected_cas = DDR_CAS_3; + } else if ((cas_4_0_available == TRUE) && (sdram_freq <= cycle_4_0_clk)) { + mmode |= SDRAM_MMODE_DCL_DDR2_4_0_CLK; + *selected_cas = DDR_CAS_4; + } else if ((cas_5_0_available == TRUE) && (sdram_freq <= cycle_5_0_clk)) { + mmode |= SDRAM_MMODE_DCL_DDR2_5_0_CLK; + *selected_cas = DDR_CAS_5; + } else { + printf("ERROR: Cannot find a supported CAS latency with the installed DIMMs.\n"); + printf("Only DIMMs DDR2 with CAS latencies of 3.0, 4.0, and 5.0 are supported.\n"); + printf("Make sure the PLB speed is within the supported range of the DIMMs.\n"); + printf("cas3=%d cas4=%d cas5=%d\n", + cas_3_0_available, cas_4_0_available, cas_5_0_available); + printf("sdram_freq=%lu cycle3=%lu cycle4=%lu cycle5=%lu\n\n", + sdram_freq, cycle_3_0_clk, cycle_4_0_clk, cycle_5_0_clk); + spd_ddr_init_hang (); + } + } + + if (sdram_ddr1 == TRUE) + mmode |= SDRAM_MMODE_WR_DDR1; + else { + + /* loop through all the DIMM slots on the board */ + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + /* If a dimm is installed in a particular slot ... */ + if (dimm_populated[dimm_num] != SDRAM_NONE) + t_wr_ns = max(t_wr_ns, + spd_read(iic0_dimm_addr[dimm_num], 36) >> 2); + } + + /* + * convert from nanoseconds to ddr clocks + * round up if necessary + */ + t_wr_clk = MULDIV64(sdram_freq, t_wr_ns, ONE_BILLION); + ddr_check = MULDIV64(ONE_BILLION, t_wr_clk, t_wr_ns); + if (sdram_freq != ddr_check) + t_wr_clk++; + + switch (t_wr_clk) { + case 0: + case 1: + case 2: + case 3: + mmode |= SDRAM_MMODE_WR_DDR2_3_CYC; + break; + case 4: + mmode |= SDRAM_MMODE_WR_DDR2_4_CYC; + break; + case 5: + mmode |= SDRAM_MMODE_WR_DDR2_5_CYC; + break; + default: + mmode |= SDRAM_MMODE_WR_DDR2_6_CYC; + break; + } + *write_recovery = t_wr_clk; + } + + debug("CAS latency = %d\n", *selected_cas); + debug("Write recovery = %d\n", *write_recovery); + + mtsdram(SDRAM_MMODE, mmode); +} + +/*-----------------------------------------------------------------------------+ + * program_rtr. + *-----------------------------------------------------------------------------*/ +static void program_rtr(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + PPC4xx_SYS_INFO board_cfg; + unsigned long max_refresh_rate; + unsigned long dimm_num; + unsigned long refresh_rate_type; + unsigned long refresh_rate; + unsigned long rint; + unsigned long sdram_freq; + unsigned long sdr_ddrpll; + unsigned long val; + + /*------------------------------------------------------------------ + * Get the board configuration info. + *-----------------------------------------------------------------*/ + get_sys_info(&board_cfg); + + /*------------------------------------------------------------------ + * Set the SDRAM Refresh Timing Register, SDRAM_RTR + *-----------------------------------------------------------------*/ + mfsdr(SDR0_DDR0, sdr_ddrpll); + sdram_freq = ((board_cfg.freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll)); + + max_refresh_rate = 0; + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] != SDRAM_NONE) { + + refresh_rate_type = spd_read(iic0_dimm_addr[dimm_num], 12); + refresh_rate_type &= 0x7F; + switch (refresh_rate_type) { + case 0: + refresh_rate = 15625; + break; + case 1: + refresh_rate = 3906; + break; + case 2: + refresh_rate = 7812; + break; + case 3: + refresh_rate = 31250; + break; + case 4: + refresh_rate = 62500; + break; + case 5: + refresh_rate = 125000; + break; + default: + refresh_rate = 0; + printf("ERROR: DIMM %d unsupported refresh rate/type.\n", + (unsigned int)dimm_num); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + break; + } + + max_refresh_rate = max(max_refresh_rate, refresh_rate); + } + } + + rint = MULDIV64(sdram_freq, max_refresh_rate, ONE_BILLION); + mfsdram(SDRAM_RTR, val); + mtsdram(SDRAM_RTR, (val & ~SDRAM_RTR_RINT_MASK) | + (SDRAM_RTR_RINT_ENCODE(rint))); +} + +/*------------------------------------------------------------------ + * This routine programs the SDRAM_TRx registers. + *-----------------------------------------------------------------*/ +static void program_tr(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long sdram_ddr1; + unsigned long t_rp_ns; + unsigned long t_rcd_ns; + unsigned long t_rrd_ns; + unsigned long t_ras_ns; + unsigned long t_rc_ns; + unsigned long t_rfc_ns; + unsigned long t_wpc_ns; + unsigned long t_wtr_ns; + unsigned long t_rpc_ns; + unsigned long t_rp_clk; + unsigned long t_rcd_clk; + unsigned long t_rrd_clk; + unsigned long t_ras_clk; + unsigned long t_rc_clk; + unsigned long t_rfc_clk; + unsigned long t_wpc_clk; + unsigned long t_wtr_clk; + unsigned long t_rpc_clk; + unsigned long sdtr1, sdtr2, sdtr3; + unsigned long ddr_check; + unsigned long sdram_freq; + unsigned long sdr_ddrpll; + + PPC4xx_SYS_INFO board_cfg; + + /*------------------------------------------------------------------ + * Get the board configuration info. + *-----------------------------------------------------------------*/ + get_sys_info(&board_cfg); + + mfsdr(SDR0_DDR0, sdr_ddrpll); + sdram_freq = ((board_cfg.freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll)); + + /*------------------------------------------------------------------ + * Handle the timing. We need to find the worst case timing of all + * the dimm modules installed. + *-----------------------------------------------------------------*/ + t_rp_ns = 0; + t_rrd_ns = 0; + t_rcd_ns = 0; + t_ras_ns = 0; + t_rc_ns = 0; + t_rfc_ns = 0; + t_wpc_ns = 0; + t_wtr_ns = 0; + t_rpc_ns = 0; + sdram_ddr1 = TRUE; + + /* loop through all the DIMM slots on the board */ + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + /* If a dimm is installed in a particular slot ... */ + if (dimm_populated[dimm_num] != SDRAM_NONE) { + if (dimm_populated[dimm_num] == SDRAM_DDR2) + sdram_ddr1 = TRUE; + else + sdram_ddr1 = FALSE; + + t_rcd_ns = max(t_rcd_ns, spd_read(iic0_dimm_addr[dimm_num], 29) >> 2); + t_rrd_ns = max(t_rrd_ns, spd_read(iic0_dimm_addr[dimm_num], 28) >> 2); + t_rp_ns = max(t_rp_ns, spd_read(iic0_dimm_addr[dimm_num], 27) >> 2); + t_ras_ns = max(t_ras_ns, spd_read(iic0_dimm_addr[dimm_num], 30)); + t_rc_ns = max(t_rc_ns, spd_read(iic0_dimm_addr[dimm_num], 41)); + t_rfc_ns = max(t_rfc_ns, spd_read(iic0_dimm_addr[dimm_num], 42)); + } + } + + /*------------------------------------------------------------------ + * Set the SDRAM Timing Reg 1, SDRAM_TR1 + *-----------------------------------------------------------------*/ + mfsdram(SDRAM_SDTR1, sdtr1); + sdtr1 &= ~(SDRAM_SDTR1_LDOF_MASK | SDRAM_SDTR1_RTW_MASK | + SDRAM_SDTR1_WTWO_MASK | SDRAM_SDTR1_RTRO_MASK); + + /* default values */ + sdtr1 |= SDRAM_SDTR1_LDOF_2_CLK; + sdtr1 |= SDRAM_SDTR1_RTW_2_CLK; + + /* normal operations */ + sdtr1 |= SDRAM_SDTR1_WTWO_0_CLK; + sdtr1 |= SDRAM_SDTR1_RTRO_1_CLK; + + mtsdram(SDRAM_SDTR1, sdtr1); + + /*------------------------------------------------------------------ + * Set the SDRAM Timing Reg 2, SDRAM_TR2 + *-----------------------------------------------------------------*/ + mfsdram(SDRAM_SDTR2, sdtr2); + sdtr2 &= ~(SDRAM_SDTR2_RCD_MASK | SDRAM_SDTR2_WTR_MASK | + SDRAM_SDTR2_XSNR_MASK | SDRAM_SDTR2_WPC_MASK | + SDRAM_SDTR2_RPC_MASK | SDRAM_SDTR2_RP_MASK | + SDRAM_SDTR2_RRD_MASK); + + /* + * convert t_rcd from nanoseconds to ddr clocks + * round up if necessary + */ + t_rcd_clk = MULDIV64(sdram_freq, t_rcd_ns, ONE_BILLION); + ddr_check = MULDIV64(ONE_BILLION, t_rcd_clk, t_rcd_ns); + if (sdram_freq != ddr_check) + t_rcd_clk++; + + switch (t_rcd_clk) { + case 0: + case 1: + sdtr2 |= SDRAM_SDTR2_RCD_1_CLK; + break; + case 2: + sdtr2 |= SDRAM_SDTR2_RCD_2_CLK; + break; + case 3: + sdtr2 |= SDRAM_SDTR2_RCD_3_CLK; + break; + case 4: + sdtr2 |= SDRAM_SDTR2_RCD_4_CLK; + break; + default: + sdtr2 |= SDRAM_SDTR2_RCD_5_CLK; + break; + } + + if (sdram_ddr1 == TRUE) { /* DDR1 */ + if (sdram_freq < 200000000) { + sdtr2 |= SDRAM_SDTR2_WTR_1_CLK; + sdtr2 |= SDRAM_SDTR2_WPC_2_CLK; + sdtr2 |= SDRAM_SDTR2_RPC_2_CLK; + } else { + sdtr2 |= SDRAM_SDTR2_WTR_2_CLK; + sdtr2 |= SDRAM_SDTR2_WPC_3_CLK; + sdtr2 |= SDRAM_SDTR2_RPC_2_CLK; + } + } else { /* DDR2 */ + /* loop through all the DIMM slots on the board */ + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + /* If a dimm is installed in a particular slot ... */ + if (dimm_populated[dimm_num] != SDRAM_NONE) { + t_wpc_ns = max(t_wtr_ns, spd_read(iic0_dimm_addr[dimm_num], 36) >> 2); + t_wtr_ns = max(t_wtr_ns, spd_read(iic0_dimm_addr[dimm_num], 37) >> 2); + t_rpc_ns = max(t_rpc_ns, spd_read(iic0_dimm_addr[dimm_num], 38) >> 2); + } + } + + /* + * convert from nanoseconds to ddr clocks + * round up if necessary + */ + t_wpc_clk = MULDIV64(sdram_freq, t_wpc_ns, ONE_BILLION); + ddr_check = MULDIV64(ONE_BILLION, t_wpc_clk, t_wpc_ns); + if (sdram_freq != ddr_check) + t_wpc_clk++; + + switch (t_wpc_clk) { + case 0: + case 1: + case 2: + sdtr2 |= SDRAM_SDTR2_WPC_2_CLK; + break; + case 3: + sdtr2 |= SDRAM_SDTR2_WPC_3_CLK; + break; + case 4: + sdtr2 |= SDRAM_SDTR2_WPC_4_CLK; + break; + case 5: + sdtr2 |= SDRAM_SDTR2_WPC_5_CLK; + break; + default: + sdtr2 |= SDRAM_SDTR2_WPC_6_CLK; + break; + } + + /* + * convert from nanoseconds to ddr clocks + * round up if necessary + */ + t_wtr_clk = MULDIV64(sdram_freq, t_wtr_ns, ONE_BILLION); + ddr_check = MULDIV64(ONE_BILLION, t_wtr_clk, t_wtr_ns); + if (sdram_freq != ddr_check) + t_wtr_clk++; + + switch (t_wtr_clk) { + case 0: + case 1: + sdtr2 |= SDRAM_SDTR2_WTR_1_CLK; + break; + case 2: + sdtr2 |= SDRAM_SDTR2_WTR_2_CLK; + break; + case 3: + sdtr2 |= SDRAM_SDTR2_WTR_3_CLK; + break; + default: + sdtr2 |= SDRAM_SDTR2_WTR_4_CLK; + break; + } + + /* + * convert from nanoseconds to ddr clocks + * round up if necessary + */ + t_rpc_clk = MULDIV64(sdram_freq, t_rpc_ns, ONE_BILLION); + ddr_check = MULDIV64(ONE_BILLION, t_rpc_clk, t_rpc_ns); + if (sdram_freq != ddr_check) + t_rpc_clk++; + + switch (t_rpc_clk) { + case 0: + case 1: + case 2: + sdtr2 |= SDRAM_SDTR2_RPC_2_CLK; + break; + case 3: + sdtr2 |= SDRAM_SDTR2_RPC_3_CLK; + break; + default: + sdtr2 |= SDRAM_SDTR2_RPC_4_CLK; + break; + } + } + + /* default value */ + sdtr2 |= SDRAM_SDTR2_XSNR_16_CLK; + + /* + * convert t_rrd from nanoseconds to ddr clocks + * round up if necessary + */ + t_rrd_clk = MULDIV64(sdram_freq, t_rrd_ns, ONE_BILLION); + ddr_check = MULDIV64(ONE_BILLION, t_rrd_clk, t_rrd_ns); + if (sdram_freq != ddr_check) + t_rrd_clk++; + + if (t_rrd_clk == 3) + sdtr2 |= SDRAM_SDTR2_RRD_3_CLK; + else + sdtr2 |= SDRAM_SDTR2_RRD_2_CLK; + + /* + * convert t_rp from nanoseconds to ddr clocks + * round up if necessary + */ + t_rp_clk = MULDIV64(sdram_freq, t_rp_ns, ONE_BILLION); + ddr_check = MULDIV64(ONE_BILLION, t_rp_clk, t_rp_ns); + if (sdram_freq != ddr_check) + t_rp_clk++; + + switch (t_rp_clk) { + case 0: + case 1: + case 2: + case 3: + sdtr2 |= SDRAM_SDTR2_RP_3_CLK; + break; + case 4: + sdtr2 |= SDRAM_SDTR2_RP_4_CLK; + break; + case 5: + sdtr2 |= SDRAM_SDTR2_RP_5_CLK; + break; + case 6: + sdtr2 |= SDRAM_SDTR2_RP_6_CLK; + break; + default: + sdtr2 |= SDRAM_SDTR2_RP_7_CLK; + break; + } + + mtsdram(SDRAM_SDTR2, sdtr2); + + /*------------------------------------------------------------------ + * Set the SDRAM Timing Reg 3, SDRAM_TR3 + *-----------------------------------------------------------------*/ + mfsdram(SDRAM_SDTR3, sdtr3); + sdtr3 &= ~(SDRAM_SDTR3_RAS_MASK | SDRAM_SDTR3_RC_MASK | + SDRAM_SDTR3_XCS_MASK | SDRAM_SDTR3_RFC_MASK); + + /* + * convert t_ras from nanoseconds to ddr clocks + * round up if necessary + */ + t_ras_clk = MULDIV64(sdram_freq, t_ras_ns, ONE_BILLION); + ddr_check = MULDIV64(ONE_BILLION, t_ras_clk, t_ras_ns); + if (sdram_freq != ddr_check) + t_ras_clk++; + + sdtr3 |= SDRAM_SDTR3_RAS_ENCODE(t_ras_clk); + + /* + * convert t_rc from nanoseconds to ddr clocks + * round up if necessary + */ + t_rc_clk = MULDIV64(sdram_freq, t_rc_ns, ONE_BILLION); + ddr_check = MULDIV64(ONE_BILLION, t_rc_clk, t_rc_ns); + if (sdram_freq != ddr_check) + t_rc_clk++; + + sdtr3 |= SDRAM_SDTR3_RC_ENCODE(t_rc_clk); + + /* default xcs value */ + sdtr3 |= SDRAM_SDTR3_XCS; + + /* + * convert t_rfc from nanoseconds to ddr clocks + * round up if necessary + */ + t_rfc_clk = MULDIV64(sdram_freq, t_rfc_ns, ONE_BILLION); + ddr_check = MULDIV64(ONE_BILLION, t_rfc_clk, t_rfc_ns); + if (sdram_freq != ddr_check) + t_rfc_clk++; + + sdtr3 |= SDRAM_SDTR3_RFC_ENCODE(t_rfc_clk); + + mtsdram(SDRAM_SDTR3, sdtr3); +} + +/*-----------------------------------------------------------------------------+ + * program_bxcf. + *-----------------------------------------------------------------------------*/ +static void program_bxcf(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long num_col_addr; + unsigned long num_ranks; + unsigned long num_banks; + unsigned long mode; + unsigned long ind_rank; + unsigned long ind; + unsigned long ind_bank; + unsigned long bank_0_populated; + + /*------------------------------------------------------------------ + * Set the BxCF regs. First, wipe out the bank config registers. + *-----------------------------------------------------------------*/ + mtsdram(SDRAM_MB0CF, 0x00000000); + mtsdram(SDRAM_MB1CF, 0x00000000); + mtsdram(SDRAM_MB2CF, 0x00000000); + mtsdram(SDRAM_MB3CF, 0x00000000); + + mode = SDRAM_BXCF_M_BE_ENABLE; + + bank_0_populated = 0; + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] != SDRAM_NONE) { + num_col_addr = spd_read(iic0_dimm_addr[dimm_num], 4); + num_ranks = spd_read(iic0_dimm_addr[dimm_num], 5); + if ((spd_read(iic0_dimm_addr[dimm_num], 2)) == 0x08) + num_ranks = (num_ranks & 0x0F) +1; + else + num_ranks = num_ranks & 0x0F; + + num_banks = spd_read(iic0_dimm_addr[dimm_num], 17); + + for (ind_bank = 0; ind_bank < 2; ind_bank++) { + if (num_banks == 4) + ind = 0; + else + ind = 5 << 8; + switch (num_col_addr) { + case 0x08: + mode |= (SDRAM_BXCF_M_AM_0 + ind); + break; + case 0x09: + mode |= (SDRAM_BXCF_M_AM_1 + ind); + break; + case 0x0A: + mode |= (SDRAM_BXCF_M_AM_2 + ind); + break; + case 0x0B: + mode |= (SDRAM_BXCF_M_AM_3 + ind); + break; + case 0x0C: + mode |= (SDRAM_BXCF_M_AM_4 + ind); + break; + default: + printf("DDR-SDRAM: DIMM %d BxCF configuration.\n", + (unsigned int)dimm_num); + printf("ERROR: Unsupported value for number of " + "column addresses: %d.\n", (unsigned int)num_col_addr); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + } + } + + if ((dimm_populated[dimm_num] != SDRAM_NONE)&& (dimm_num ==1)) + bank_0_populated = 1; + + for (ind_rank = 0; ind_rank < num_ranks; ind_rank++) { + mtsdram(SDRAM_MB0CF + + ((dimm_num + bank_0_populated + ind_rank) << 2), + mode); + } + } + } +} + +/*------------------------------------------------------------------ + * program memory queue. + *-----------------------------------------------------------------*/ +static void program_memory_queue(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + phys_size_t rank_base_addr; + unsigned long rank_reg; + phys_size_t rank_size_bytes; + unsigned long rank_size_id; + unsigned long num_ranks; + unsigned long baseadd_size; + unsigned long i; + unsigned long bank_0_populated = 0; + phys_size_t total_size = 0; + + /*------------------------------------------------------------------ + * Reset the rank_base_address. + *-----------------------------------------------------------------*/ + rank_reg = SDRAM_R0BAS; + + rank_base_addr = 0x00000000; + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_populated[dimm_num] != SDRAM_NONE) { + num_ranks = spd_read(iic0_dimm_addr[dimm_num], 5); + if ((spd_read(iic0_dimm_addr[dimm_num], 2)) == 0x08) + num_ranks = (num_ranks & 0x0F) + 1; + else + num_ranks = num_ranks & 0x0F; + + rank_size_id = spd_read(iic0_dimm_addr[dimm_num], 31); + + /*------------------------------------------------------------------ + * Set the sizes + *-----------------------------------------------------------------*/ + baseadd_size = 0; + switch (rank_size_id) { + case 0x01: + baseadd_size |= SDRAM_RXBAS_SDSZ_1024; + total_size = 1024; + break; + case 0x02: + baseadd_size |= SDRAM_RXBAS_SDSZ_2048; + total_size = 2048; + break; + case 0x04: + baseadd_size |= SDRAM_RXBAS_SDSZ_4096; + total_size = 4096; + break; + case 0x08: + baseadd_size |= SDRAM_RXBAS_SDSZ_32; + total_size = 32; + break; + case 0x10: + baseadd_size |= SDRAM_RXBAS_SDSZ_64; + total_size = 64; + break; + case 0x20: + baseadd_size |= SDRAM_RXBAS_SDSZ_128; + total_size = 128; + break; + case 0x40: + baseadd_size |= SDRAM_RXBAS_SDSZ_256; + total_size = 256; + break; + case 0x80: + baseadd_size |= SDRAM_RXBAS_SDSZ_512; + total_size = 512; + break; + default: + printf("DDR-SDRAM: DIMM %d memory queue configuration.\n", + (unsigned int)dimm_num); + printf("ERROR: Unsupported value for the banksize: %d.\n", + (unsigned int)rank_size_id); + printf("Replace the DIMM module with a supported DIMM.\n\n"); + spd_ddr_init_hang (); + } + rank_size_bytes = total_size << 20; + + if ((dimm_populated[dimm_num] != SDRAM_NONE) && (dimm_num == 1)) + bank_0_populated = 1; + + for (i = 0; i < num_ranks; i++) { + mtdcr_any(rank_reg+i+dimm_num+bank_0_populated, + (SDRAM_RXBAS_SDBA_ENCODE(rank_base_addr) | + baseadd_size)); + rank_base_addr += rank_size_bytes; + } + } + } + +#if defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ + defined(CONFIG_460SX) + /* + * Enable high bandwidth access + * This is currently not used, but with this setup + * it is possible to use it later on in e.g. the Linux + * EMAC driver for performance gain. + */ + mtdcr(SDRAM_PLBADDULL, 0x00000000); /* MQ0_BAUL */ + mtdcr(SDRAM_PLBADDUHB, 0x00000008); /* MQ0_BAUH */ + + /* + * Set optimal value for Memory Queue HB/LL Configuration registers + */ + mtdcr(SDRAM_CONF1HB, (mfdcr(SDRAM_CONF1HB) & ~SDRAM_CONF1HB_MASK) | + SDRAM_CONF1HB_AAFR | SDRAM_CONF1HB_RPEN | SDRAM_CONF1HB_RFTE | + SDRAM_CONF1HB_RPLM | SDRAM_CONF1HB_WRCL); + mtdcr(SDRAM_CONF1LL, (mfdcr(SDRAM_CONF1LL) & ~SDRAM_CONF1LL_MASK) | + SDRAM_CONF1LL_AAFR | SDRAM_CONF1LL_RPEN | SDRAM_CONF1LL_RFTE | + SDRAM_CONF1LL_RPLM); + mtdcr(SDRAM_CONFPATHB, mfdcr(SDRAM_CONFPATHB) | SDRAM_CONFPATHB_TPEN); +#endif +} + +#ifdef CONFIG_DDR_ECC +/*-----------------------------------------------------------------------------+ + * program_ecc. + *-----------------------------------------------------------------------------*/ +static void program_ecc(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks, + unsigned long tlb_word2_i_value) +{ + unsigned long dimm_num; + unsigned long ecc; + + ecc = 0; + /* loop through all the DIMM slots on the board */ + for (dimm_num = 0; dimm_num < MAXDIMMS; dimm_num++) { + /* If a dimm is installed in a particular slot ... */ + if (dimm_populated[dimm_num] != SDRAM_NONE) + ecc = max(ecc, spd_read(iic0_dimm_addr[dimm_num], 11)); + } + if (ecc == 0) + return; + + do_program_ecc(tlb_word2_i_value); +} +#endif + +#if !defined(CONFIG_PPC4xx_DDR_AUTOCALIBRATION) +/*-----------------------------------------------------------------------------+ + * program_DQS_calibration. + *-----------------------------------------------------------------------------*/ +static void program_DQS_calibration(unsigned long *dimm_populated, + unsigned char *iic0_dimm_addr, + unsigned long num_dimm_banks) +{ + unsigned long val; + +#ifdef HARD_CODED_DQS /* calibration test with hardvalues */ + mtsdram(SDRAM_RQDC, 0x80000037); + mtsdram(SDRAM_RDCC, 0x40000000); + mtsdram(SDRAM_RFDC, 0x000001DF); + + test(); +#else + /*------------------------------------------------------------------ + * Program RDCC register + * Read sample cycle auto-update enable + *-----------------------------------------------------------------*/ + + mfsdram(SDRAM_RDCC, val); + mtsdram(SDRAM_RDCC, + (val & ~(SDRAM_RDCC_RDSS_MASK | SDRAM_RDCC_RSAE_MASK)) + | SDRAM_RDCC_RSAE_ENABLE); + + /*------------------------------------------------------------------ + * Program RQDC register + * Internal DQS delay mechanism enable + *-----------------------------------------------------------------*/ + mtsdram(SDRAM_RQDC, (SDRAM_RQDC_RQDE_ENABLE|SDRAM_RQDC_RQFD_ENCODE(0x38))); + + /*------------------------------------------------------------------ + * Program RFDC register + * Set Feedback Fractional Oversample + * Auto-detect read sample cycle enable + * Set RFOS to 1/4 of memclk cycle (0x3f) + *-----------------------------------------------------------------*/ + mfsdram(SDRAM_RFDC, val); + mtsdram(SDRAM_RFDC, + (val & ~(SDRAM_RFDC_ARSE_MASK | SDRAM_RFDC_RFOS_MASK | + SDRAM_RFDC_RFFD_MASK)) + | (SDRAM_RFDC_ARSE_ENABLE | SDRAM_RFDC_RFOS_ENCODE(0x3f) | + SDRAM_RFDC_RFFD_ENCODE(0))); + + DQS_calibration_process(); +#endif +} + +static int short_mem_test(void) +{ + u32 *membase; + u32 bxcr_num; + u32 bxcf; + int i; + int j; + phys_size_t base_addr; + u32 test[NUMMEMTESTS][NUMMEMWORDS] = { + {0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, + 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF}, + {0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, + 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000}, + {0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, + 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555}, + {0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, + 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA}, + {0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, + 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A}, + {0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, + 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5}, + {0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, + 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA}, + {0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, + 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55} }; + int l; + + for (bxcr_num = 0; bxcr_num < MAXBXCF; bxcr_num++) { + mfsdram(SDRAM_MB0CF + (bxcr_num << 2), bxcf); + + /* Banks enabled */ + if ((bxcf & SDRAM_BXCF_M_BE_MASK) == SDRAM_BXCF_M_BE_ENABLE) { + /* Bank is enabled */ + + /* + * Only run test on accessable memory (below 2GB) + */ + base_addr = SDRAM_RXBAS_SDBA_DECODE(mfdcr_any(SDRAM_R0BAS+bxcr_num)); + if (base_addr >= CONFIG_MAX_MEM_MAPPED) + continue; + + /*------------------------------------------------------------------ + * Run the short memory test. + *-----------------------------------------------------------------*/ + membase = (u32 *)(u32)base_addr; + + for (i = 0; i < NUMMEMTESTS; i++) { + for (j = 0; j < NUMMEMWORDS; j++) { + membase[j] = test[i][j]; + ppcDcbf((u32)&(membase[j])); + } + sync(); + for (l=0; l<NUMLOOPS; l++) { + for (j = 0; j < NUMMEMWORDS; j++) { + if (membase[j] != test[i][j]) { + ppcDcbf((u32)&(membase[j])); + return 0; + } + ppcDcbf((u32)&(membase[j])); + } + sync(); + } + } + } /* if bank enabled */ + } /* for bxcf_num */ + + return 1; +} + +#ifndef HARD_CODED_DQS +/*-----------------------------------------------------------------------------+ + * DQS_calibration_process. + *-----------------------------------------------------------------------------*/ +static void DQS_calibration_process(void) +{ + unsigned long rfdc_reg; + unsigned long rffd; + unsigned long val; + long rffd_average; + long max_start; + long min_end; + unsigned long begin_rqfd[MAXRANKS]; + unsigned long begin_rffd[MAXRANKS]; + unsigned long end_rqfd[MAXRANKS]; + unsigned long end_rffd[MAXRANKS]; + char window_found; + unsigned long dlycal; + unsigned long dly_val; + unsigned long max_pass_length; + unsigned long current_pass_length; + unsigned long current_fail_length; + unsigned long current_start; + long max_end; + unsigned char fail_found; + unsigned char pass_found; +#if !defined(CONFIG_DDR_RQDC_FIXED) + u32 rqdc_reg; + u32 rqfd; + u32 rqfd_start; + u32 rqfd_average; + int loopi = 0; + char str[] = "Auto calibration -"; + char slash[] = "\\|/-\\|/-"; + + /*------------------------------------------------------------------ + * Test to determine the best read clock delay tuning bits. + * + * Before the DDR controller can be used, the read clock delay needs to be + * set. This is SDRAM_RQDC[RQFD] and SDRAM_RFDC[RFFD]. + * This value cannot be hardcoded into the program because it changes + * depending on the board's setup and environment. + * To do this, all delay values are tested to see if they + * work or not. By doing this, you get groups of fails with groups of + * passing values. The idea is to find the start and end of a passing + * window and take the center of it to use as the read clock delay. + * + * A failure has to be seen first so that when we hit a pass, we know + * that it is truely the start of the window. If we get passing values + * to start off with, we don't know if we are at the start of the window. + * + * The code assumes that a failure will always be found. + * If a failure is not found, there is no easy way to get the middle + * of the passing window. I guess we can pretty much pick any value + * but some values will be better than others. Since the lowest speed + * we can clock the DDR interface at is 200 MHz (2x 100 MHz PLB speed), + * from experimentation it is safe to say you will always have a failure. + *-----------------------------------------------------------------*/ + + /* first fix RQDC[RQFD] to an average of 80 degre phase shift to find RFDC[RFFD] */ + rqfd_start = 64; /* test-only: don't know if this is the _best_ start value */ + + puts(str); + +calibration_loop: + mfsdram(SDRAM_RQDC, rqdc_reg); + mtsdram(SDRAM_RQDC, (rqdc_reg & ~SDRAM_RQDC_RQFD_MASK) | + SDRAM_RQDC_RQFD_ENCODE(rqfd_start)); +#else /* CONFIG_DDR_RQDC_FIXED */ + /* + * On Katmai the complete auto-calibration somehow doesn't seem to + * produce the best results, meaning optimal values for RQFD/RFFD. + * This was discovered by GDA using a high bandwidth scope, + * analyzing the DDR2 signals. GDA provided a fixed value for RQFD, + * so now on Katmai "only" RFFD is auto-calibrated. + */ + mtsdram(SDRAM_RQDC, CONFIG_DDR_RQDC_FIXED); +#endif /* CONFIG_DDR_RQDC_FIXED */ + + max_start = 0; + min_end = 0; + begin_rqfd[0] = 0; + begin_rffd[0] = 0; + begin_rqfd[1] = 0; + begin_rffd[1] = 0; + end_rqfd[0] = 0; + end_rffd[0] = 0; + end_rqfd[1] = 0; + end_rffd[1] = 0; + window_found = FALSE; + + max_pass_length = 0; + max_start = 0; + max_end = 0; + current_pass_length = 0; + current_fail_length = 0; + current_start = 0; + window_found = FALSE; + fail_found = FALSE; + pass_found = FALSE; + + /* + * get the delay line calibration register value + */ + mfsdram(SDRAM_DLCR, dlycal); + dly_val = SDRAM_DLYCAL_DLCV_DECODE(dlycal) << 2; + + for (rffd = 0; rffd <= SDRAM_RFDC_RFFD_MAX; rffd++) { + mfsdram(SDRAM_RFDC, rfdc_reg); + rfdc_reg &= ~(SDRAM_RFDC_RFFD_MASK); + + /*------------------------------------------------------------------ + * Set the timing reg for the test. + *-----------------------------------------------------------------*/ + mtsdram(SDRAM_RFDC, rfdc_reg | SDRAM_RFDC_RFFD_ENCODE(rffd)); + + /*------------------------------------------------------------------ + * See if the rffd value passed. + *-----------------------------------------------------------------*/ + if (short_mem_test()) { + if (fail_found == TRUE) { + pass_found = TRUE; + if (current_pass_length == 0) + current_start = rffd; + + current_fail_length = 0; + current_pass_length++; + + if (current_pass_length > max_pass_length) { + max_pass_length = current_pass_length; + max_start = current_start; + max_end = rffd; + } + } + } else { + current_pass_length = 0; + current_fail_length++; + + if (current_fail_length >= (dly_val >> 2)) { + if (fail_found == FALSE) { + fail_found = TRUE; + } else if (pass_found == TRUE) { + window_found = TRUE; + break; + } + } + } + } /* for rffd */ + + /*------------------------------------------------------------------ + * Set the average RFFD value + *-----------------------------------------------------------------*/ + rffd_average = ((max_start + max_end) >> 1); + + if (rffd_average < 0) + rffd_average = 0; + + if (rffd_average > SDRAM_RFDC_RFFD_MAX) + rffd_average = SDRAM_RFDC_RFFD_MAX; + /* now fix RFDC[RFFD] found and find RQDC[RQFD] */ + mtsdram(SDRAM_RFDC, rfdc_reg | SDRAM_RFDC_RFFD_ENCODE(rffd_average)); + +#if !defined(CONFIG_DDR_RQDC_FIXED) + max_pass_length = 0; + max_start = 0; + max_end = 0; + current_pass_length = 0; + current_fail_length = 0; + current_start = 0; + window_found = FALSE; + fail_found = FALSE; + pass_found = FALSE; + + for (rqfd = 0; rqfd <= SDRAM_RQDC_RQFD_MAX; rqfd++) { + mfsdram(SDRAM_RQDC, rqdc_reg); + rqdc_reg &= ~(SDRAM_RQDC_RQFD_MASK); + + /*------------------------------------------------------------------ + * Set the timing reg for the test. + *-----------------------------------------------------------------*/ + mtsdram(SDRAM_RQDC, rqdc_reg | SDRAM_RQDC_RQFD_ENCODE(rqfd)); + + /*------------------------------------------------------------------ + * See if the rffd value passed. + *-----------------------------------------------------------------*/ + if (short_mem_test()) { + if (fail_found == TRUE) { + pass_found = TRUE; + if (current_pass_length == 0) + current_start = rqfd; + + current_fail_length = 0; + current_pass_length++; + + if (current_pass_length > max_pass_length) { + max_pass_length = current_pass_length; + max_start = current_start; + max_end = rqfd; + } + } + } else { + current_pass_length = 0; + current_fail_length++; + + if (fail_found == FALSE) { + fail_found = TRUE; + } else if (pass_found == TRUE) { + window_found = TRUE; + break; + } + } + } + + rqfd_average = ((max_start + max_end) >> 1); + + /*------------------------------------------------------------------ + * Make sure we found the valid read passing window. Halt if not + *-----------------------------------------------------------------*/ + if (window_found == FALSE) { + if (rqfd_start < SDRAM_RQDC_RQFD_MAX) { + putc('\b'); + putc(slash[loopi++ % 8]); + + /* try again from with a different RQFD start value */ + rqfd_start++; + goto calibration_loop; + } + + printf("\nERROR: Cannot determine a common read delay for the " + "DIMM(s) installed.\n"); + debug("%s[%d] ERROR : \n", __FUNCTION__,__LINE__); + ppc4xx_ibm_ddr2_register_dump(); + spd_ddr_init_hang (); + } + + if (rqfd_average < 0) + rqfd_average = 0; + + if (rqfd_average > SDRAM_RQDC_RQFD_MAX) + rqfd_average = SDRAM_RQDC_RQFD_MAX; + + mtsdram(SDRAM_RQDC, + (rqdc_reg & ~SDRAM_RQDC_RQFD_MASK) | + SDRAM_RQDC_RQFD_ENCODE(rqfd_average)); + + blank_string(strlen(str)); +#endif /* CONFIG_DDR_RQDC_FIXED */ + + /* + * Now complete RDSS configuration as mentioned on page 7 of the AMCC + * PowerPC440SP/SPe DDR2 application note: + * "DDR1/DDR2 Initialization Sequence and Dynamic Tuning" + */ + mfsdram(SDRAM_RTSR, val); + if ((val & SDRAM_RTSR_TRK1SM_MASK) == SDRAM_RTSR_TRK1SM_ATPLS1) { + mfsdram(SDRAM_RDCC, val); + if ((val & SDRAM_RDCC_RDSS_MASK) != SDRAM_RDCC_RDSS_T4) { + val += 0x40000000; + mtsdram(SDRAM_RDCC, val); + } + } + + mfsdram(SDRAM_DLCR, val); + debug("%s[%d] DLCR: 0x%08lX\n", __FUNCTION__, __LINE__, val); + mfsdram(SDRAM_RQDC, val); + debug("%s[%d] RQDC: 0x%08lX\n", __FUNCTION__, __LINE__, val); + mfsdram(SDRAM_RFDC, val); + debug("%s[%d] RFDC: 0x%08lX\n", __FUNCTION__, __LINE__, val); + mfsdram(SDRAM_RDCC, val); + debug("%s[%d] RDCC: 0x%08lX\n", __FUNCTION__, __LINE__, val); +} +#else /* calibration test with hardvalues */ +/*-----------------------------------------------------------------------------+ + * DQS_calibration_process. + *-----------------------------------------------------------------------------*/ +static void test(void) +{ + unsigned long dimm_num; + unsigned long ecc_temp; + unsigned long i, j; + unsigned long *membase; + unsigned long bxcf[MAXRANKS]; + unsigned long val; + char window_found; + char begin_found[MAXDIMMS]; + char end_found[MAXDIMMS]; + char search_end[MAXDIMMS]; + unsigned long test[NUMMEMTESTS][NUMMEMWORDS] = { + {0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, + 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF}, + {0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, + 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000}, + {0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, + 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555}, + {0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, + 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA}, + {0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, + 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A}, + {0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, + 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5}, + {0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, + 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA}, + {0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, + 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55} }; + + /*------------------------------------------------------------------ + * Test to determine the best read clock delay tuning bits. + * + * Before the DDR controller can be used, the read clock delay needs to be + * set. This is SDRAM_RQDC[RQFD] and SDRAM_RFDC[RFFD]. + * This value cannot be hardcoded into the program because it changes + * depending on the board's setup and environment. + * To do this, all delay values are tested to see if they + * work or not. By doing this, you get groups of fails with groups of + * passing values. The idea is to find the start and end of a passing + * window and take the center of it to use as the read clock delay. + * + * A failure has to be seen first so that when we hit a pass, we know + * that it is truely the start of the window. If we get passing values + * to start off with, we don't know if we are at the start of the window. + * + * The code assumes that a failure will always be found. + * If a failure is not found, there is no easy way to get the middle + * of the passing window. I guess we can pretty much pick any value + * but some values will be better than others. Since the lowest speed + * we can clock the DDR interface at is 200 MHz (2x 100 MHz PLB speed), + * from experimentation it is safe to say you will always have a failure. + *-----------------------------------------------------------------*/ + mfsdram(SDRAM_MCOPT1, ecc_temp); + ecc_temp &= SDRAM_MCOPT1_MCHK_MASK; + mfsdram(SDRAM_MCOPT1, val); + mtsdram(SDRAM_MCOPT1, (val & ~SDRAM_MCOPT1_MCHK_MASK) | + SDRAM_MCOPT1_MCHK_NON); + + window_found = FALSE; + begin_found[0] = FALSE; + end_found[0] = FALSE; + search_end[0] = FALSE; + begin_found[1] = FALSE; + end_found[1] = FALSE; + search_end[1] = FALSE; + + for (dimm_num = 0; dimm_num < MAXDIMMS; dimm_num++) { + mfsdram(SDRAM_MB0CF + (bxcr_num << 2), bxcf[bxcr_num]); + + /* Banks enabled */ + if ((bxcf[dimm_num] & SDRAM_BXCF_M_BE_MASK) == SDRAM_BXCF_M_BE_ENABLE) { + + /* Bank is enabled */ + membase = + (unsigned long*)(SDRAM_RXBAS_SDBA_DECODE(mfdcr_any(SDRAM_R0BAS+dimm_num))); + + /*------------------------------------------------------------------ + * Run the short memory test. + *-----------------------------------------------------------------*/ + for (i = 0; i < NUMMEMTESTS; i++) { + for (j = 0; j < NUMMEMWORDS; j++) { + membase[j] = test[i][j]; + ppcDcbf((u32)&(membase[j])); + } + sync(); + for (j = 0; j < NUMMEMWORDS; j++) { + if (membase[j] != test[i][j]) { + ppcDcbf((u32)&(membase[j])); + break; + } + ppcDcbf((u32)&(membase[j])); + } + sync(); + if (j < NUMMEMWORDS) + break; + } + + /*------------------------------------------------------------------ + * See if the rffd value passed. + *-----------------------------------------------------------------*/ + if (i < NUMMEMTESTS) { + if ((end_found[dimm_num] == FALSE) && + (search_end[dimm_num] == TRUE)) { + end_found[dimm_num] = TRUE; + } + if ((end_found[0] == TRUE) && + (end_found[1] == TRUE)) + break; + } else { + if (begin_found[dimm_num] == FALSE) { + begin_found[dimm_num] = TRUE; + search_end[dimm_num] = TRUE; + } + } + } else { + begin_found[dimm_num] = TRUE; + end_found[dimm_num] = TRUE; + } + } + + if ((begin_found[0] == TRUE) && (begin_found[1] == TRUE)) + window_found = TRUE; + + /*------------------------------------------------------------------ + * Make sure we found the valid read passing window. Halt if not + *-----------------------------------------------------------------*/ + if (window_found == FALSE) { + printf("ERROR: Cannot determine a common read delay for the " + "DIMM(s) installed.\n"); + spd_ddr_init_hang (); + } + + /*------------------------------------------------------------------ + * Restore the ECC variable to what it originally was + *-----------------------------------------------------------------*/ + mtsdram(SDRAM_MCOPT1, + (ppcMfdcr_sdram(SDRAM_MCOPT1) & ~SDRAM_MCOPT1_MCHK_MASK) + | ecc_temp); +} +#endif /* !HARD_CODED_DQS */ +#endif /* !defined(CONFIG_PPC4xx_DDR_AUTOCALIBRATION) */ + +#else /* CONFIG_SPD_EEPROM */ + +/*----------------------------------------------------------------------------- + * Function: initdram + * Description: Configures the PPC4xx IBM DDR1/DDR2 SDRAM memory controller. + * The configuration is performed using static, compile- + * time parameters. + * Configures the PPC405EX(r) and PPC460EX/GT + *---------------------------------------------------------------------------*/ +phys_size_t initdram(int board_type) +{ + /* + * Only run this SDRAM init code once. For NAND booting + * targets like Kilauea, we call initdram() early from the + * 4k NAND booting image (CONFIG_NAND_SPL) from nand_boot(). + * Later on the NAND U-Boot image runs (CONFIG_NAND_U_BOOT) + * which calls initdram() again. This time the controller + * mustn't be reconfigured again since we're already running + * from SDRAM. + */ +#if !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL) + unsigned long val; + +#if defined(CONFIG_440) + mtdcr(SDRAM_R0BAS, CONFIG_SYS_SDRAM_R0BAS); + mtdcr(SDRAM_R1BAS, CONFIG_SYS_SDRAM_R1BAS); + mtdcr(SDRAM_R2BAS, CONFIG_SYS_SDRAM_R2BAS); + mtdcr(SDRAM_R3BAS, CONFIG_SYS_SDRAM_R3BAS); + mtdcr(SDRAM_PLBADDULL, CONFIG_SYS_SDRAM_PLBADDULL); /* MQ0_BAUL */ + mtdcr(SDRAM_PLBADDUHB, CONFIG_SYS_SDRAM_PLBADDUHB); /* MQ0_BAUH */ + mtdcr(SDRAM_CONF1LL, CONFIG_SYS_SDRAM_CONF1LL); + mtdcr(SDRAM_CONF1HB, CONFIG_SYS_SDRAM_CONF1HB); + mtdcr(SDRAM_CONFPATHB, CONFIG_SYS_SDRAM_CONFPATHB); +#endif + + /* Set Memory Bank Configuration Registers */ + + mtsdram(SDRAM_MB0CF, CONFIG_SYS_SDRAM0_MB0CF); + mtsdram(SDRAM_MB1CF, CONFIG_SYS_SDRAM0_MB1CF); + mtsdram(SDRAM_MB2CF, CONFIG_SYS_SDRAM0_MB2CF); + mtsdram(SDRAM_MB3CF, CONFIG_SYS_SDRAM0_MB3CF); + + /* Set Memory Clock Timing Register */ + + mtsdram(SDRAM_CLKTR, CONFIG_SYS_SDRAM0_CLKTR); + + /* Set Refresh Time Register */ + + mtsdram(SDRAM_RTR, CONFIG_SYS_SDRAM0_RTR); + + /* Set SDRAM Timing Registers */ + + mtsdram(SDRAM_SDTR1, CONFIG_SYS_SDRAM0_SDTR1); + mtsdram(SDRAM_SDTR2, CONFIG_SYS_SDRAM0_SDTR2); + mtsdram(SDRAM_SDTR3, CONFIG_SYS_SDRAM0_SDTR3); + + /* Set Mode and Extended Mode Registers */ + + mtsdram(SDRAM_MMODE, CONFIG_SYS_SDRAM0_MMODE); + mtsdram(SDRAM_MEMODE, CONFIG_SYS_SDRAM0_MEMODE); + + /* Set Memory Controller Options 1 Register */ + + mtsdram(SDRAM_MCOPT1, CONFIG_SYS_SDRAM0_MCOPT1); + + /* Set Manual Initialization Control Registers */ + + mtsdram(SDRAM_INITPLR0, CONFIG_SYS_SDRAM0_INITPLR0); + mtsdram(SDRAM_INITPLR1, CONFIG_SYS_SDRAM0_INITPLR1); + mtsdram(SDRAM_INITPLR2, CONFIG_SYS_SDRAM0_INITPLR2); + mtsdram(SDRAM_INITPLR3, CONFIG_SYS_SDRAM0_INITPLR3); + mtsdram(SDRAM_INITPLR4, CONFIG_SYS_SDRAM0_INITPLR4); + mtsdram(SDRAM_INITPLR5, CONFIG_SYS_SDRAM0_INITPLR5); + mtsdram(SDRAM_INITPLR6, CONFIG_SYS_SDRAM0_INITPLR6); + mtsdram(SDRAM_INITPLR7, CONFIG_SYS_SDRAM0_INITPLR7); + mtsdram(SDRAM_INITPLR8, CONFIG_SYS_SDRAM0_INITPLR8); + mtsdram(SDRAM_INITPLR9, CONFIG_SYS_SDRAM0_INITPLR9); + mtsdram(SDRAM_INITPLR10, CONFIG_SYS_SDRAM0_INITPLR10); + mtsdram(SDRAM_INITPLR11, CONFIG_SYS_SDRAM0_INITPLR11); + mtsdram(SDRAM_INITPLR12, CONFIG_SYS_SDRAM0_INITPLR12); + mtsdram(SDRAM_INITPLR13, CONFIG_SYS_SDRAM0_INITPLR13); + mtsdram(SDRAM_INITPLR14, CONFIG_SYS_SDRAM0_INITPLR14); + mtsdram(SDRAM_INITPLR15, CONFIG_SYS_SDRAM0_INITPLR15); + + /* Set On-Die Termination Registers */ + + mtsdram(SDRAM_CODT, CONFIG_SYS_SDRAM0_CODT); + mtsdram(SDRAM_MODT0, CONFIG_SYS_SDRAM0_MODT0); + mtsdram(SDRAM_MODT1, CONFIG_SYS_SDRAM0_MODT1); + + /* Set Write Timing Register */ + + mtsdram(SDRAM_WRDTR, CONFIG_SYS_SDRAM0_WRDTR); + + /* + * Start Initialization by SDRAM0_MCOPT2[SREN] = 0 and + * SDRAM0_MCOPT2[IPTR] = 1 + */ + + mtsdram(SDRAM_MCOPT2, (SDRAM_MCOPT2_SREN_EXIT | + SDRAM_MCOPT2_IPTR_EXECUTE)); + + /* + * Poll SDRAM0_MCSTAT[MIC] for assertion to indicate the + * completion of initialization. + */ + + do { + mfsdram(SDRAM_MCSTAT, val); + } while ((val & SDRAM_MCSTAT_MIC_MASK) != SDRAM_MCSTAT_MIC_COMP); + + /* Set Delay Control Registers */ + + mtsdram(SDRAM_DLCR, CONFIG_SYS_SDRAM0_DLCR); + +#if !defined(CONFIG_PPC4xx_DDR_AUTOCALIBRATION) + mtsdram(SDRAM_RDCC, CONFIG_SYS_SDRAM0_RDCC); + mtsdram(SDRAM_RQDC, CONFIG_SYS_SDRAM0_RQDC); + mtsdram(SDRAM_RFDC, CONFIG_SYS_SDRAM0_RFDC); +#endif /* !CONFIG_PPC4xx_DDR_AUTOCALIBRATION */ + + /* + * Enable Controller by SDRAM0_MCOPT2[DCEN] = 1: + */ + + mfsdram(SDRAM_MCOPT2, val); + mtsdram(SDRAM_MCOPT2, val | SDRAM_MCOPT2_DCEN_ENABLE); + +#if defined(CONFIG_440) + /* + * Program TLB entries with caches enabled, for best performace + * while auto-calibrating and ECC generation + */ + program_tlb(0, 0, (CONFIG_SYS_MBYTES_SDRAM << 20), 0); +#endif + +#if defined(CONFIG_PPC4xx_DDR_AUTOCALIBRATION) +#if !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) + /*------------------------------------------------------------------ + | DQS calibration. + +-----------------------------------------------------------------*/ + DQS_autocalibration(); +#endif /* !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) */ +#endif /* CONFIG_PPC4xx_DDR_AUTOCALIBRATION */ + +#if defined(CONFIG_DDR_ECC) + do_program_ecc(0); +#endif /* defined(CONFIG_DDR_ECC) */ + +#if defined(CONFIG_440) + /* + * Now after initialization (auto-calibration and ECC generation) + * remove the TLB entries with caches enabled and program again with + * desired cache functionality + */ + remove_tlb(0, (CONFIG_SYS_MBYTES_SDRAM << 20)); + program_tlb(0, 0, (CONFIG_SYS_MBYTES_SDRAM << 20), MY_TLB_WORD2_I_ENABLE); +#endif + + ppc4xx_ibm_ddr2_register_dump(); + +#if defined(CONFIG_PPC4xx_DDR_AUTOCALIBRATION) + /* + * Clear potential errors resulting from auto-calibration. + * If not done, then we could get an interrupt later on when + * exceptions are enabled. + */ + set_mcsr(get_mcsr()); +#endif /* CONFIG_PPC4xx_DDR_AUTOCALIBRATION */ + +#endif /* !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL) */ + + return (CONFIG_SYS_MBYTES_SDRAM << 20); +} +#endif /* CONFIG_SPD_EEPROM */ + +#if !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) +#if defined(CONFIG_440) +u32 mfdcr_any(u32 dcr) +{ + u32 val; + + switch (dcr) { + case SDRAM_R0BAS + 0: + val = mfdcr(SDRAM_R0BAS + 0); + break; + case SDRAM_R0BAS + 1: + val = mfdcr(SDRAM_R0BAS + 1); + break; + case SDRAM_R0BAS + 2: + val = mfdcr(SDRAM_R0BAS + 2); + break; + case SDRAM_R0BAS + 3: + val = mfdcr(SDRAM_R0BAS + 3); + break; + default: + printf("DCR %d not defined in case statement!!!\n", dcr); + val = 0; /* just to satisfy the compiler */ + } + + return val; +} + +void mtdcr_any(u32 dcr, u32 val) +{ + switch (dcr) { + case SDRAM_R0BAS + 0: + mtdcr(SDRAM_R0BAS + 0, val); + break; + case SDRAM_R0BAS + 1: + mtdcr(SDRAM_R0BAS + 1, val); + break; + case SDRAM_R0BAS + 2: + mtdcr(SDRAM_R0BAS + 2, val); + break; + case SDRAM_R0BAS + 3: + mtdcr(SDRAM_R0BAS + 3, val); + break; + default: + printf("DCR %d not defined in case statement!!!\n", dcr); + } +} +#endif /* defined(CONFIG_440) */ +#endif /* !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) */ + +inline void ppc4xx_ibm_ddr2_register_dump(void) +{ +#if defined(DEBUG) + printf("\nPPC4xx IBM DDR2 Register Dump:\n"); + +#if (defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT)) + PPC4xx_IBM_DDR2_DUMP_MQ_REGISTER(R0BAS); + PPC4xx_IBM_DDR2_DUMP_MQ_REGISTER(R1BAS); + PPC4xx_IBM_DDR2_DUMP_MQ_REGISTER(R2BAS); + PPC4xx_IBM_DDR2_DUMP_MQ_REGISTER(R3BAS); +#endif /* (defined(CONFIG_440SP) || ... */ +#if defined(CONFIG_405EX) + PPC4xx_IBM_DDR2_DUMP_REGISTER(BESR); + PPC4xx_IBM_DDR2_DUMP_REGISTER(BEARL); + PPC4xx_IBM_DDR2_DUMP_REGISTER(BEARH); + PPC4xx_IBM_DDR2_DUMP_REGISTER(WMIRQ); + PPC4xx_IBM_DDR2_DUMP_REGISTER(PLBOPT); + PPC4xx_IBM_DDR2_DUMP_REGISTER(PUABA); +#endif /* defined(CONFIG_405EX) */ + PPC4xx_IBM_DDR2_DUMP_REGISTER(MB0CF); + PPC4xx_IBM_DDR2_DUMP_REGISTER(MB1CF); + PPC4xx_IBM_DDR2_DUMP_REGISTER(MB2CF); + PPC4xx_IBM_DDR2_DUMP_REGISTER(MB3CF); + PPC4xx_IBM_DDR2_DUMP_REGISTER(MCSTAT); + PPC4xx_IBM_DDR2_DUMP_REGISTER(MCOPT1); + PPC4xx_IBM_DDR2_DUMP_REGISTER(MCOPT2); + PPC4xx_IBM_DDR2_DUMP_REGISTER(MODT0); + PPC4xx_IBM_DDR2_DUMP_REGISTER(MODT1); + PPC4xx_IBM_DDR2_DUMP_REGISTER(MODT2); + PPC4xx_IBM_DDR2_DUMP_REGISTER(MODT3); + PPC4xx_IBM_DDR2_DUMP_REGISTER(CODT); +#if (defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT)) + PPC4xx_IBM_DDR2_DUMP_REGISTER(VVPR); + PPC4xx_IBM_DDR2_DUMP_REGISTER(OPARS); + /* + * OPART is only used as a trigger register. + * + * No data is contained in this register, and reading or writing + * to is can cause bad things to happen (hangs). Just skip it and + * report "N/A". + */ + printf("%20s = N/A\n", "SDRAM_OPART"); +#endif /* defined(CONFIG_440SP) || ... */ + PPC4xx_IBM_DDR2_DUMP_REGISTER(RTR); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR0); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR1); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR2); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR3); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR4); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR5); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR6); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR7); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR8); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR9); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR10); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR11); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR12); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR13); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR14); + PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR15); + PPC4xx_IBM_DDR2_DUMP_REGISTER(RQDC); + PPC4xx_IBM_DDR2_DUMP_REGISTER(RFDC); + PPC4xx_IBM_DDR2_DUMP_REGISTER(RDCC); + PPC4xx_IBM_DDR2_DUMP_REGISTER(DLCR); + PPC4xx_IBM_DDR2_DUMP_REGISTER(CLKTR); + PPC4xx_IBM_DDR2_DUMP_REGISTER(WRDTR); + PPC4xx_IBM_DDR2_DUMP_REGISTER(SDTR1); + PPC4xx_IBM_DDR2_DUMP_REGISTER(SDTR2); + PPC4xx_IBM_DDR2_DUMP_REGISTER(SDTR3); + PPC4xx_IBM_DDR2_DUMP_REGISTER(MMODE); + PPC4xx_IBM_DDR2_DUMP_REGISTER(MEMODE); + PPC4xx_IBM_DDR2_DUMP_REGISTER(ECCES); +#if (defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT)) + PPC4xx_IBM_DDR2_DUMP_REGISTER(CID); +#endif /* defined(CONFIG_440SP) || ... */ + PPC4xx_IBM_DDR2_DUMP_REGISTER(RID); + PPC4xx_IBM_DDR2_DUMP_REGISTER(FCSR); + PPC4xx_IBM_DDR2_DUMP_REGISTER(RTSR); +#endif /* defined(DEBUG) */ +} + +#endif /* CONFIG_SDRAM_PPC4xx_IBM_DDR2 */ diff --git a/arch/ppc/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c b/arch/ppc/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c new file mode 100644 index 0000000..7263071 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c @@ -0,0 +1,1251 @@ +/* + * arch/ppc/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c + * This SPD SDRAM detection code supports AMCC PPC44x cpu's with a + * DDR2 controller (non Denali Core). Those currently are: + * + * 405: 405EX + * 440/460: 440SP/440SPe/460EX/460GT/460SX + * + * (C) Copyright 2008 Applied Micro Circuits Corporation + * Adam Graham <agraham@amcc.com> + * + * (C) Copyright 2007-2008 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * COPYRIGHT AMCC CORPORATION 2004 + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +/* define DEBUG for debugging output (obviously ;-)) */ +#undef DEBUG + +#include <common.h> +#include <ppc4xx.h> +#include <asm/io.h> +#include <asm/processor.h> + +#include "ecc.h" + +#if defined(CONFIG_PPC4xx_DDR_AUTOCALIBRATION) + +/* + * Only compile the DDR auto-calibration code for NOR boot and + * not for NAND boot (NAND SPL and NAND U-Boot - NUB) + */ +#if !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) + +#define MAXBXCF 4 +#define SDRAM_RXBAS_SHIFT_1M 20 + +#if defined(CONFIG_SYS_DECREMENT_PATTERNS) +#define NUMMEMTESTS 24 +#else +#define NUMMEMTESTS 8 +#endif /* CONFIG_SYS_DECREMENT_PATTERNS */ +#define NUMLOOPS 1 /* configure as you deem approporiate */ +#define NUMMEMWORDS 16 + +#define SDRAM_RDCC_RDSS_VAL(n) SDRAM_RDCC_RDSS_DECODE(ddr_rdss_opt(n)) + +/* Private Structure Definitions */ + +struct autocal_regs { + u32 rffd; + u32 rqfd; +}; + +struct ddrautocal { + u32 rffd; + u32 rffd_min; + u32 rffd_max; + u32 rffd_size; + u32 rqfd; + u32 rqfd_size; + u32 rdcc; + u32 flags; +}; + +struct sdram_timing { + u32 wrdtr; + u32 clktr; +}; + +struct sdram_timing_clks { + u32 wrdtr; + u32 clktr; + u32 rdcc; + u32 flags; +}; + +struct autocal_clks { + struct sdram_timing_clks clocks; + struct ddrautocal autocal; +}; + +/*--------------------------------------------------------------------------+ + * Prototypes + *--------------------------------------------------------------------------*/ +#if defined(CONFIG_PPC4xx_DDR_METHOD_A) +static u32 DQS_calibration_methodA(struct ddrautocal *); +static u32 program_DQS_calibration_methodA(struct ddrautocal *); +#else +static u32 DQS_calibration_methodB(struct ddrautocal *); +static u32 program_DQS_calibration_methodB(struct ddrautocal *); +#endif +static int short_mem_test(u32 *); + +/* + * To provide an interface for board specific config values in this common + * DDR setup code, we implement he "weak" default functions here. They return + * the default value back to the caller. + * + * Please see include/configs/yucca.h for an example fora board specific + * implementation. + */ + +#if !defined(CONFIG_SPD_EEPROM) +u32 __ddr_wrdtr(u32 default_val) +{ + return default_val; +} +u32 ddr_wrdtr(u32) __attribute__((weak, alias("__ddr_wrdtr"))); + +u32 __ddr_clktr(u32 default_val) +{ + return default_val; +} +u32 ddr_clktr(u32) __attribute__((weak, alias("__ddr_clktr"))); + +/* + * Board-specific Platform code can reimplement spd_ddr_init_hang () if needed + */ +void __spd_ddr_init_hang(void) +{ + hang(); +} +void +spd_ddr_init_hang(void) __attribute__((weak, alias("__spd_ddr_init_hang"))); +#endif /* defined(CONFIG_SPD_EEPROM) */ + +ulong __ddr_scan_option(ulong default_val) +{ + return default_val; +} +ulong ddr_scan_option(ulong) __attribute__((weak, alias("__ddr_scan_option"))); + +u32 __ddr_rdss_opt(u32 default_val) +{ + return default_val; +} +u32 ddr_rdss_opt(ulong) __attribute__((weak, alias("__ddr_rdss_opt"))); + + +static u32 *get_membase(int bxcr_num) +{ + ulong bxcf; + u32 *membase; + +#if defined(SDRAM_R0BAS) + /* BAS from Memory Queue rank reg. */ + membase = + (u32 *)(SDRAM_RXBAS_SDBA_DECODE(mfdcr_any(SDRAM_R0BAS+bxcr_num))); + bxcf = 0; /* just to satisfy the compiler */ +#else + /* BAS from SDRAM_MBxCF mem rank reg. */ + mfsdram(SDRAM_MB0CF + (bxcr_num<<2), bxcf); + membase = (u32 *)((bxcf & 0xfff80000) << 3); +#endif + + return membase; +} + +static inline void ecc_clear_status_reg(void) +{ + mtsdram(SDRAM_ECCES, 0xffffffff); +#if defined(SDRAM_R0BAS) + mtdcr(SDRAM_ERRSTATLL, 0xffffffff); +#endif +} + +/* + * Reset and relock memory DLL after SDRAM_CLKTR change + */ +static inline void relock_memory_DLL(void) +{ + u32 reg; + + mtsdram(SDRAM_MCOPT2, SDRAM_MCOPT2_IPTR_EXECUTE); + + do { + mfsdram(SDRAM_MCSTAT, reg); + } while (!(reg & SDRAM_MCSTAT_MIC_COMP)); + + mfsdram(SDRAM_MCOPT2, reg); + mtsdram(SDRAM_MCOPT2, reg | SDRAM_MCOPT2_DCEN_ENABLE); +} + +static int ecc_check_status_reg(void) +{ + u32 ecc_status; + + /* + * Compare suceeded, now check + * if got ecc error. If got an + * ecc error, then don't count + * this as a passing value + */ + mfsdram(SDRAM_ECCES, ecc_status); + if (ecc_status != 0x00000000) { + /* clear on error */ + ecc_clear_status_reg(); + /* ecc check failure */ + return 0; + } + ecc_clear_status_reg(); + sync(); + + return 1; +} + +/* return 1 if passes, 0 if fail */ +static int short_mem_test(u32 *base_address) +{ + int i, j, l; + u32 ecc_mode = 0; + + ulong test[NUMMEMTESTS][NUMMEMWORDS] = { + /* 0 */ {0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, + 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, + 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, + 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF}, + /* 1 */ {0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, + 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, + 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, + 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000}, + /* 2 */ {0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, + 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, + 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, + 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555}, + /* 3 */ {0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, + 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, + 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, + 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA}, + /* 4 */ {0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, + 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, + 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, + 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A}, + /* 5 */ {0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, + 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, + 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, + 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5}, + /* 6 */ {0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, + 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, + 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, + 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA}, + /* 7 */ {0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, + 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, + 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, + 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55}, + +#if defined(CONFIG_SYS_DECREMENT_PATTERNS) + /* 8 */ {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, + 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, + 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, + 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, + /* 9 */ {0xfffefffe, 0xfffefffe, 0xfffefffe, 0xfffefffe, + 0xfffefffe, 0xfffefffe, 0xfffefffe, 0xfffefffe, + 0xfffefffe, 0xfffefffe, 0xfffefffe, 0xfffefffe, + 0xfffefffe, 0xfffefffe, 0xfffefffe, 0xfffefffe}, + /* 10 */{0xfffdfffd, 0xfffdfffd, 0xfffdffff, 0xfffdfffd, + 0xfffdfffd, 0xfffdfffd, 0xfffdffff, 0xfffdfffd, + 0xfffdfffd, 0xfffdfffd, 0xfffdffff, 0xfffdfffd, + 0xfffdfffd, 0xfffdfffd, 0xfffdffff, 0xfffdfffd}, + /* 11 */{0xfffcfffc, 0xfffcfffc, 0xfffcfffc, 0xfffcfffc, + 0xfffcfffc, 0xfffcfffc, 0xfffcfffc, 0xfffcfffc, + 0xfffcfffc, 0xfffcfffc, 0xfffcfffc, 0xfffcfffc, + 0xfffcfffc, 0xfffcfffc, 0xfffcfffc, 0xfffcfffc}, + /* 12 */{0xfffbfffb, 0xfffffffb, 0xfffffffb, 0xfffffffb, + 0xfffbfffb, 0xfffffffb, 0xfffffffb, 0xfffffffb, + 0xfffbfffb, 0xfffffffb, 0xfffffffb, 0xfffffffb, + 0xfffbfffb, 0xfffffffb, 0xfffffffb, 0xfffffffb}, + /* 13 */{0xfffafffa, 0xfffafffa, 0xfffffffa, 0xfffafffa, + 0xfffafffa, 0xfffafffa, 0xfffafffa, 0xfffafffa, + 0xfffafffa, 0xfffafffa, 0xfffafffa, 0xfffafffa, + 0xfffafffa, 0xfffafffa, 0xfffafffa, 0xfffafffa}, + /* 14 */{0xfff9fff9, 0xfff9fff9, 0xfff9fff9, 0xfff9fff9, + 0xfff9fff9, 0xfff9fff9, 0xfff9fff9, 0xfff9fff9, + 0xfff9fff9, 0xfff9fff9, 0xfff9fff9, 0xfff9fff9, + 0xfff9fff9, 0xfff9fff9, 0xfff9fff9, 0xfff9fff9}, + /* 15 */{0xfff8fff8, 0xfff8fff8, 0xfff8fff8, 0xfff8fff8, + 0xfff8fff8, 0xfff8fff8, 0xfff8fff8, 0xfff8fff8, + 0xfff8fff8, 0xfff8fff8, 0xfff8fff8, 0xfff8fff8, + 0xfff8fff8, 0xfff8fff8, 0xfff8fff8, 0xfff8fff8}, + /* 16 */{0xfff7fff7, 0xfff7ffff, 0xfff7fff7, 0xfff7fff7, + 0xfff7fff7, 0xfff7ffff, 0xfff7fff7, 0xfff7fff7, + 0xfff7fff7, 0xfff7ffff, 0xfff7fff7, 0xfff7fff7, + 0xfff7ffff, 0xfff7ffff, 0xfff7fff7, 0xfff7fff7}, + /* 17 */{0xfff6fff5, 0xfff6ffff, 0xfff6fff6, 0xfff6fff7, + 0xfff6fff5, 0xfff6ffff, 0xfff6fff6, 0xfff6fff7, + 0xfff6fff5, 0xfff6ffff, 0xfff6fff6, 0xfff6fff7, + 0xfff6fff5, 0xfff6ffff, 0xfff6fff6, 0xfff6fff7}, + /* 18 */{0xfff5fff4, 0xfff5ffff, 0xfff5fff5, 0xfff5fff5, + 0xfff5fff4, 0xfff5ffff, 0xfff5fff5, 0xfff5fff5, + 0xfff5fff4, 0xfff5ffff, 0xfff5fff5, 0xfff5fff5, + 0xfff5fff4, 0xfff5ffff, 0xfff5fff5, 0xfff5fff5}, + /* 19 */{0xfff4fff3, 0xfff4ffff, 0xfff4fff4, 0xfff4fff4, + 0xfff4fff3, 0xfff4ffff, 0xfff4fff4, 0xfff4fff4, + 0xfff4fff3, 0xfff4ffff, 0xfff4fff4, 0xfff4fff4, + 0xfff4fff3, 0xfff4ffff, 0xfff4fff4, 0xfff4fff4}, + /* 20 */{0xfff3fff2, 0xfff3ffff, 0xfff3fff3, 0xfff3fff3, + 0xfff3fff2, 0xfff3ffff, 0xfff3fff3, 0xfff3fff3, + 0xfff3fff2, 0xfff3ffff, 0xfff3fff3, 0xfff3fff3, + 0xfff3fff2, 0xfff3ffff, 0xfff3fff3, 0xfff3fff3}, + /* 21 */{0xfff2ffff, 0xfff2ffff, 0xfff2fff2, 0xfff2fff2, + 0xfff2ffff, 0xfff2ffff, 0xfff2fff2, 0xfff2fff2, + 0xfff2ffff, 0xfff2ffff, 0xfff2fff2, 0xfff2fff2, + 0xfff2ffff, 0xfff2ffff, 0xfff2fff2, 0xfff2fff2}, + /* 22 */{0xfff1ffff, 0xfff1ffff, 0xfff1fff1, 0xfff1fff1, + 0xfff1ffff, 0xfff1ffff, 0xfff1fff1, 0xfff1fff1, + 0xfff1ffff, 0xfff1ffff, 0xfff1fff1, 0xfff1fff1, + 0xfff1ffff, 0xfff1ffff, 0xfff1fff1, 0xfff1fff1}, + /* 23 */{0xfff0fff0, 0xfff0fff0, 0xfff0fff0, 0xfff0fff0, + 0xfff0fff0, 0xfff0fff0, 0xfff0fff0, 0xfff0fff0, + 0xfff0fff0, 0xfff0fff0, 0xfff0fff0, 0xfff0fff0, + 0xfff0fff0, 0xfff0fffe, 0xfff0fff0, 0xfff0fff0}, +#endif /* CONFIG_SYS_DECREMENT_PATTERNS */ + }; + + mfsdram(SDRAM_MCOPT1, ecc_mode); + if ((ecc_mode & SDRAM_MCOPT1_MCHK_CHK_REP) == + SDRAM_MCOPT1_MCHK_CHK_REP) { + ecc_clear_status_reg(); + sync(); + ecc_mode = 1; + } else { + ecc_mode = 0; + } + + /* + * Run the short memory test. + */ + for (i = 0; i < NUMMEMTESTS; i++) { + for (j = 0; j < NUMMEMWORDS; j++) { + base_address[j] = test[i][j]; + ppcDcbf((ulong)&(base_address[j])); + } + sync(); + iobarrier_rw(); + for (l = 0; l < NUMLOOPS; l++) { + for (j = 0; j < NUMMEMWORDS; j++) { + if (base_address[j] != test[i][j]) { + ppcDcbf((u32)&(base_address[j])); + return 0; + } else { + if (ecc_mode) { + if (!ecc_check_status_reg()) + return 0; + } + } + ppcDcbf((u32)&(base_address[j])); + } /* for (j = 0; j < NUMMEMWORDS; j++) */ + sync(); + iobarrier_rw(); + } /* for (l=0; l<NUMLOOPS; l++) */ + } + + return 1; +} + +#if defined(CONFIG_PPC4xx_DDR_METHOD_A) +/*-----------------------------------------------------------------------------+ +| program_DQS_calibration_methodA. ++-----------------------------------------------------------------------------*/ +static u32 program_DQS_calibration_methodA(struct ddrautocal *ddrcal) +{ + u32 pass_result = 0; + +#ifdef DEBUG + ulong temp; + + mfsdram(SDRAM_RDCC, temp); + debug("<%s>SDRAM_RDCC=0x%08x\n", __func__, temp); +#endif + + pass_result = DQS_calibration_methodA(ddrcal); + + return pass_result; +} + +/* + * DQS_calibration_methodA() + * + * Autocalibration Method A + * + * ARRAY [Entire DQS Range] DQS_Valid_Window ; initialized to all zeros + * ARRAY [Entire FDBK Range] FDBK_Valid_Window; initialized to all zeros + * MEMWRITE(addr, expected_data); + * for (i = 0; i < Entire DQS Range; i++) { RQDC.RQFD + * for (j = 0; j < Entire FDBK Range; j++) { RFDC.RFFD + * MEMREAD(addr, actual_data); + * if (actual_data == expected_data) { + * DQS_Valid_Window[i] = 1; RQDC.RQFD + * FDBK_Valid_Window[i][j] = 1; RFDC.RFFD + * } + * } + * } + */ +static u32 DQS_calibration_methodA(struct ddrautocal *cal) +{ + ulong rfdc_reg; + ulong rffd; + + ulong rqdc_reg; + ulong rqfd; + + u32 *membase; + ulong bxcf; + int rqfd_average; + int bxcr_num; + int rffd_average; + int pass; + u32 passed = 0; + + int in_window; + struct autocal_regs curr_win_min; + struct autocal_regs curr_win_max; + struct autocal_regs best_win_min; + struct autocal_regs best_win_max; + struct autocal_regs loop_win_min; + struct autocal_regs loop_win_max; + +#ifdef DEBUG + ulong temp; +#endif + ulong rdcc; + + char slash[] = "\\|/-\\|/-"; + int loopi = 0; + + /* start */ + in_window = 0; + + memset(&curr_win_min, 0, sizeof(curr_win_min)); + memset(&curr_win_max, 0, sizeof(curr_win_max)); + memset(&best_win_min, 0, sizeof(best_win_min)); + memset(&best_win_max, 0, sizeof(best_win_max)); + memset(&loop_win_min, 0, sizeof(loop_win_min)); + memset(&loop_win_max, 0, sizeof(loop_win_max)); + + rdcc = 0; + + /* + * Program RDCC register + * Read sample cycle auto-update enable + */ + mtsdram(SDRAM_RDCC, + ddr_rdss_opt(SDRAM_RDCC_RDSS_T2) | SDRAM_RDCC_RSAE_ENABLE); + +#ifdef DEBUG + mfsdram(SDRAM_RDCC, temp); + debug("<%s>SDRAM_RDCC=0x%x\n", __func__, temp); + mfsdram(SDRAM_RTSR, temp); + debug("<%s>SDRAM_RTSR=0x%x\n", __func__, temp); + mfsdram(SDRAM_FCSR, temp); + debug("<%s>SDRAM_FCSR=0x%x\n", __func__, temp); +#endif + + /* + * Program RQDC register + * Internal DQS delay mechanism enable + */ + mtsdram(SDRAM_RQDC, + SDRAM_RQDC_RQDE_ENABLE | SDRAM_RQDC_RQFD_ENCODE(0x00)); + +#ifdef DEBUG + mfsdram(SDRAM_RQDC, temp); + debug("<%s>SDRAM_RQDC=0x%x\n", __func__, temp); +#endif + + /* + * Program RFDC register + * Set Feedback Fractional Oversample + * Auto-detect read sample cycle enable + */ + mtsdram(SDRAM_RFDC, SDRAM_RFDC_ARSE_ENABLE | + SDRAM_RFDC_RFOS_ENCODE(0) | SDRAM_RFDC_RFFD_ENCODE(0)); + +#ifdef DEBUG + mfsdram(SDRAM_RFDC, temp); + debug("<%s>SDRAM_RFDC=0x%x\n", __func__, temp); +#endif + + putc(' '); + for (rqfd = 0; rqfd <= SDRAM_RQDC_RQFD_MAX; rqfd++) { + + mfsdram(SDRAM_RQDC, rqdc_reg); + rqdc_reg &= ~(SDRAM_RQDC_RQFD_MASK); + mtsdram(SDRAM_RQDC, rqdc_reg | SDRAM_RQDC_RQFD_ENCODE(rqfd)); + + putc('\b'); + putc(slash[loopi++ % 8]); + + curr_win_min.rffd = 0; + curr_win_max.rffd = 0; + in_window = 0; + + for (rffd = 0, pass = 0; rffd <= SDRAM_RFDC_RFFD_MAX; rffd++) { + mfsdram(SDRAM_RFDC, rfdc_reg); + rfdc_reg &= ~(SDRAM_RFDC_RFFD_MASK); + mtsdram(SDRAM_RFDC, + rfdc_reg | SDRAM_RFDC_RFFD_ENCODE(rffd)); + + for (bxcr_num = 0; bxcr_num < MAXBXCF; bxcr_num++) { + mfsdram(SDRAM_MB0CF + (bxcr_num<<2), bxcf); + + /* Banks enabled */ + if (bxcf & SDRAM_BXCF_M_BE_MASK) { + /* Bank is enabled */ + membase = get_membase(bxcr_num); + pass = short_mem_test(membase); + } /* if bank enabled */ + } /* for bxcr_num */ + + /* If this value passed update RFFD windows */ + if (pass && !in_window) { /* at the start of window */ + in_window = 1; + curr_win_min.rffd = curr_win_max.rffd = rffd; + curr_win_min.rqfd = curr_win_max.rqfd = rqfd; + mfsdram(SDRAM_RDCC, rdcc); /*record this value*/ + } else if (!pass && in_window) { /* at end of window */ + in_window = 0; + } else if (pass && in_window) { /* within the window */ + curr_win_max.rffd = rffd; + curr_win_max.rqfd = rqfd; + } + /* else if (!pass && !in_window) + skip - no pass, not currently in a window */ + + if (in_window) { + if ((curr_win_max.rffd - curr_win_min.rffd) > + (best_win_max.rffd - best_win_min.rffd)) { + best_win_min.rffd = curr_win_min.rffd; + best_win_max.rffd = curr_win_max.rffd; + + best_win_min.rqfd = curr_win_min.rqfd; + best_win_max.rqfd = curr_win_max.rqfd; + cal->rdcc = rdcc; + } + passed = 1; + } + } /* RFDC.RFFD */ + + /* + * save-off the best window results of the RFDC.RFFD + * for this RQDC.RQFD setting + */ + /* + * if (just ended RFDC.RFDC loop pass window) > + * (prior RFDC.RFFD loop pass window) + */ + if ((best_win_max.rffd - best_win_min.rffd) > + (loop_win_max.rffd - loop_win_min.rffd)) { + loop_win_min.rffd = best_win_min.rffd; + loop_win_max.rffd = best_win_max.rffd; + loop_win_min.rqfd = rqfd; + loop_win_max.rqfd = rqfd; + debug("RQFD.min 0x%08x, RQFD.max 0x%08x, " + "RFFD.min 0x%08x, RFFD.max 0x%08x\n", + loop_win_min.rqfd, loop_win_max.rqfd, + loop_win_min.rffd, loop_win_max.rffd); + } + } /* RQDC.RQFD */ + + putc('\b'); + + debug("\n"); + + if ((loop_win_min.rffd == 0) && (loop_win_max.rffd == 0) && + (best_win_min.rffd == 0) && (best_win_max.rffd == 0) && + (best_win_min.rqfd == 0) && (best_win_max.rqfd == 0)) { + passed = 0; + } + + /* + * Need to program RQDC before RFDC. + */ + debug("<%s> RQFD Min: 0x%x\n", __func__, loop_win_min.rqfd); + debug("<%s> RQFD Max: 0x%x\n", __func__, loop_win_max.rqfd); + rqfd_average = loop_win_max.rqfd; + + if (rqfd_average < 0) + rqfd_average = 0; + + if (rqfd_average > SDRAM_RQDC_RQFD_MAX) + rqfd_average = SDRAM_RQDC_RQFD_MAX; + + debug("<%s> RFFD average: 0x%08x\n", __func__, rqfd_average); + mtsdram(SDRAM_RQDC, (rqdc_reg & ~SDRAM_RQDC_RQFD_MASK) | + SDRAM_RQDC_RQFD_ENCODE(rqfd_average)); + + debug("<%s> RFFD Min: 0x%08x\n", __func__, loop_win_min.rffd); + debug("<%s> RFFD Max: 0x%08x\n", __func__, loop_win_max.rffd); + rffd_average = ((loop_win_min.rffd + loop_win_max.rffd) / 2); + + if (rffd_average < 0) + rffd_average = 0; + + if (rffd_average > SDRAM_RFDC_RFFD_MAX) + rffd_average = SDRAM_RFDC_RFFD_MAX; + + debug("<%s> RFFD average: 0x%08x\n", __func__, rffd_average); + mtsdram(SDRAM_RFDC, rfdc_reg | SDRAM_RFDC_RFFD_ENCODE(rffd_average)); + + /* if something passed, then return the size of the largest window */ + if (passed != 0) { + passed = loop_win_max.rffd - loop_win_min.rffd; + cal->rqfd = rqfd_average; + cal->rffd = rffd_average; + cal->rffd_min = loop_win_min.rffd; + cal->rffd_max = loop_win_max.rffd; + } + + return (u32)passed; +} + +#else /* !defined(CONFIG_PPC4xx_DDR_METHOD_A) */ + +/*-----------------------------------------------------------------------------+ +| program_DQS_calibration_methodB. ++-----------------------------------------------------------------------------*/ +static u32 program_DQS_calibration_methodB(struct ddrautocal *ddrcal) +{ + u32 pass_result = 0; + +#ifdef DEBUG + ulong temp; +#endif + + /* + * Program RDCC register + * Read sample cycle auto-update enable + */ + mtsdram(SDRAM_RDCC, + ddr_rdss_opt(SDRAM_RDCC_RDSS_T2) | SDRAM_RDCC_RSAE_ENABLE); + +#ifdef DEBUG + mfsdram(SDRAM_RDCC, temp); + debug("<%s>SDRAM_RDCC=0x%08x\n", __func__, temp); +#endif + + /* + * Program RQDC register + * Internal DQS delay mechanism enable + */ + mtsdram(SDRAM_RQDC, +#if defined(CONFIG_DDR_RQDC_START_VAL) + SDRAM_RQDC_RQDE_ENABLE | + SDRAM_RQDC_RQFD_ENCODE(CONFIG_DDR_RQDC_START_VAL)); +#else + SDRAM_RQDC_RQDE_ENABLE | SDRAM_RQDC_RQFD_ENCODE(0x38)); +#endif + +#ifdef DEBUG + mfsdram(SDRAM_RQDC, temp); + debug("<%s>SDRAM_RQDC=0x%08x\n", __func__, temp); +#endif + + /* + * Program RFDC register + * Set Feedback Fractional Oversample + * Auto-detect read sample cycle enable + */ + mtsdram(SDRAM_RFDC, SDRAM_RFDC_ARSE_ENABLE | + SDRAM_RFDC_RFOS_ENCODE(0) | + SDRAM_RFDC_RFFD_ENCODE(0)); + +#ifdef DEBUG + mfsdram(SDRAM_RFDC, temp); + debug("<%s>SDRAM_RFDC=0x%08x\n", __func__, temp); +#endif + + pass_result = DQS_calibration_methodB(ddrcal); + + return pass_result; +} + +/* + * DQS_calibration_methodB() + * + * Autocalibration Method B + * + * ARRAY [Entire DQS Range] DQS_Valid_Window ; initialized to all zeros + * ARRAY [Entire Feedback Range] FDBK_Valid_Window; initialized to all zeros + * MEMWRITE(addr, expected_data); + * Initialialize the DQS delay to 80 degrees (MCIF0_RRQDC[RQFD]=0x38). + * + * for (j = 0; j < Entire Feedback Range; j++) { + * MEMREAD(addr, actual_data); + * if (actual_data == expected_data) { + * FDBK_Valid_Window[j] = 1; + * } + * } + * + * Set MCIF0_RFDC[RFFD] to the middle of the FDBK_Valid_Window. + * + * for (i = 0; i < Entire DQS Range; i++) { + * MEMREAD(addr, actual_data); + * if (actual_data == expected_data) { + * DQS_Valid_Window[i] = 1; + * } + * } + * + * Set MCIF0_RRQDC[RQFD] to the middle of the DQS_Valid_Window. + */ +/*-----------------------------------------------------------------------------+ +| DQS_calibration_methodB. ++-----------------------------------------------------------------------------*/ +static u32 DQS_calibration_methodB(struct ddrautocal *cal) +{ + ulong rfdc_reg; + ulong rffd; + + ulong rqdc_reg; + ulong rqfd; + + ulong rdcc; + + u32 *membase; + ulong bxcf; + int rqfd_average; + int bxcr_num; + int rffd_average; + int pass; + uint passed = 0; + + int in_window; + u32 curr_win_min, curr_win_max; + u32 best_win_min, best_win_max; + u32 size = 0; + + /*------------------------------------------------------------------ + | Test to determine the best read clock delay tuning bits. + | + | Before the DDR controller can be used, the read clock delay needs to + | be set. This is SDRAM_RQDC[RQFD] and SDRAM_RFDC[RFFD]. + | This value cannot be hardcoded into the program because it changes + | depending on the board's setup and environment. + | To do this, all delay values are tested to see if they + | work or not. By doing this, you get groups of fails with groups of + | passing values. The idea is to find the start and end of a passing + | window and take the center of it to use as the read clock delay. + | + | A failure has to be seen first so that when we hit a pass, we know + | that it is truely the start of the window. If we get passing values + | to start off with, we don't know if we are at the start of the window + | + | The code assumes that a failure will always be found. + | If a failure is not found, there is no easy way to get the middle + | of the passing window. I guess we can pretty much pick any value + | but some values will be better than others. Since the lowest speed + | we can clock the DDR interface at is 200 MHz (2x 100 MHz PLB speed), + | from experimentation it is safe to say you will always have a failure + +-----------------------------------------------------------------*/ + + debug("\n\n"); + + in_window = 0; + rdcc = 0; + + curr_win_min = curr_win_max = 0; + best_win_min = best_win_max = 0; + for (rffd = 0; rffd <= SDRAM_RFDC_RFFD_MAX; rffd++) { + mfsdram(SDRAM_RFDC, rfdc_reg); + rfdc_reg &= ~(SDRAM_RFDC_RFFD_MASK); + mtsdram(SDRAM_RFDC, rfdc_reg | SDRAM_RFDC_RFFD_ENCODE(rffd)); + + pass = 1; + for (bxcr_num = 0; bxcr_num < MAXBXCF; bxcr_num++) { + mfsdram(SDRAM_MB0CF + (bxcr_num<<2), bxcf); + + /* Banks enabled */ + if (bxcf & SDRAM_BXCF_M_BE_MASK) { + /* Bank is enabled */ + membase = get_membase(bxcr_num); + pass &= short_mem_test(membase); + } /* if bank enabled */ + } /* for bxcf_num */ + + /* If this value passed */ + if (pass && !in_window) { /* start of passing window */ + in_window = 1; + curr_win_min = curr_win_max = rffd; + mfsdram(SDRAM_RDCC, rdcc); /* record this value */ + } else if (!pass && in_window) { /* end passing window */ + in_window = 0; + } else if (pass && in_window) { /* within the passing window */ + curr_win_max = rffd; + } + + if (in_window) { + if ((curr_win_max - curr_win_min) > + (best_win_max - best_win_min)) { + best_win_min = curr_win_min; + best_win_max = curr_win_max; + cal->rdcc = rdcc; + } + passed = 1; + } + } /* for rffd */ + + if ((best_win_min == 0) && (best_win_max == 0)) + passed = 0; + else + size = best_win_max - best_win_min; + + debug("RFFD Min: 0x%x\n", best_win_min); + debug("RFFD Max: 0x%x\n", best_win_max); + rffd_average = ((best_win_min + best_win_max) / 2); + + cal->rffd_min = best_win_min; + cal->rffd_max = best_win_max; + + if (rffd_average < 0) + rffd_average = 0; + + if (rffd_average > SDRAM_RFDC_RFFD_MAX) + rffd_average = SDRAM_RFDC_RFFD_MAX; + + mtsdram(SDRAM_RFDC, rfdc_reg | SDRAM_RFDC_RFFD_ENCODE(rffd_average)); + + rffd = rffd_average; + in_window = 0; + + curr_win_min = curr_win_max = 0; + best_win_min = best_win_max = 0; + for (rqfd = 0; rqfd <= SDRAM_RQDC_RQFD_MAX; rqfd++) { + mfsdram(SDRAM_RQDC, rqdc_reg); + rqdc_reg &= ~(SDRAM_RQDC_RQFD_MASK); + mtsdram(SDRAM_RQDC, rqdc_reg | SDRAM_RQDC_RQFD_ENCODE(rqfd)); + + pass = 1; + for (bxcr_num = 0; bxcr_num < MAXBXCF; bxcr_num++) { + + mfsdram(SDRAM_MB0CF + (bxcr_num<<2), bxcf); + + /* Banks enabled */ + if (bxcf & SDRAM_BXCF_M_BE_MASK) { + /* Bank is enabled */ + membase = get_membase(bxcr_num); + pass &= short_mem_test(membase); + } /* if bank enabled */ + } /* for bxcf_num */ + + /* If this value passed */ + if (pass && !in_window) { + in_window = 1; + curr_win_min = curr_win_max = rqfd; + } else if (!pass && in_window) { + in_window = 0; + } else if (pass && in_window) { + curr_win_max = rqfd; + } + + if (in_window) { + if ((curr_win_max - curr_win_min) > + (best_win_max - best_win_min)) { + best_win_min = curr_win_min; + best_win_max = curr_win_max; + } + passed = 1; + } + } /* for rqfd */ + + if ((best_win_min == 0) && (best_win_max == 0)) + passed = 0; + + debug("RQFD Min: 0x%x\n", best_win_min); + debug("RQFD Max: 0x%x\n", best_win_max); + rqfd_average = ((best_win_min + best_win_max) / 2); + + if (rqfd_average < 0) + rqfd_average = 0; + + if (rqfd_average > SDRAM_RQDC_RQFD_MAX) + rqfd_average = SDRAM_RQDC_RQFD_MAX; + + mtsdram(SDRAM_RQDC, (rqdc_reg & ~SDRAM_RQDC_RQFD_MASK) | + SDRAM_RQDC_RQFD_ENCODE(rqfd_average)); + + mfsdram(SDRAM_RQDC, rqdc_reg); + mfsdram(SDRAM_RFDC, rfdc_reg); + + /* + * Need to program RQDC before RFDC. The value is read above. + * That is the reason why auto cal not work. + * See, comments below. + */ + mtsdram(SDRAM_RQDC, rqdc_reg); + mtsdram(SDRAM_RFDC, rfdc_reg); + + debug("RQDC: 0x%08X\n", rqdc_reg); + debug("RFDC: 0x%08X\n", rfdc_reg); + + /* if something passed, then return the size of the largest window */ + if (passed != 0) { + passed = size; + cal->rqfd = rqfd_average; + cal->rffd = rffd_average; + } + + return (uint)passed; +} +#endif /* defined(CONFIG_PPC4xx_DDR_METHOD_A) */ + +/* + * Default table for DDR auto-calibration of all + * possible WRDTR and CLKTR values. + * Table format is: + * {SDRAM_WRDTR.[WDTR], SDRAM_CLKTR.[CKTR]} + * + * Table is terminated with {-1, -1} value pair. + * + * Board vendors can specify their own board specific subset of + * known working {SDRAM_WRDTR.[WDTR], SDRAM_CLKTR.[CKTR]} value + * pairs via a board defined ddr_scan_option() function. + */ +struct sdram_timing full_scan_options[] = { + {0, 0}, {0, 1}, {0, 2}, {0, 3}, + {1, 0}, {1, 1}, {1, 2}, {1, 3}, + {2, 0}, {2, 1}, {2, 2}, {2, 3}, + {3, 0}, {3, 1}, {3, 2}, {3, 3}, + {4, 0}, {4, 1}, {4, 2}, {4, 3}, + {5, 0}, {5, 1}, {5, 2}, {5, 3}, + {6, 0}, {6, 1}, {6, 2}, {6, 3}, + {-1, -1} +}; + +/*---------------------------------------------------------------------------+ +| DQS_calibration. ++----------------------------------------------------------------------------*/ +u32 DQS_autocalibration(void) +{ + u32 wdtr; + u32 clkp; + u32 result = 0; + u32 best_result = 0; + u32 best_rdcc; + struct ddrautocal ddrcal; + struct autocal_clks tcal; + ulong rfdc_reg; + ulong rqdc_reg; + u32 val; + int verbose_lvl = 0; + char *str; + char slash[] = "\\|/-\\|/-"; + int loopi = 0; + struct sdram_timing *scan_list; + +#if defined(DEBUG_PPC4xx_DDR_AUTOCALIBRATION) + int i; + char tmp[64]; /* long enough for environment variables */ +#endif + + memset(&tcal, 0, sizeof(tcal)); + + ddr_scan_option((ulong)full_scan_options); + + scan_list = + (struct sdram_timing *)ddr_scan_option((ulong)full_scan_options); + + mfsdram(SDRAM_MCOPT1, val); + if ((val & SDRAM_MCOPT1_MCHK_CHK_REP) == SDRAM_MCOPT1_MCHK_CHK_REP) + str = "ECC Auto calibration -"; + else + str = "Auto calibration -"; + + puts(str); + +#if defined(DEBUG_PPC4xx_DDR_AUTOCALIBRATION) + i = getenv_r("autocalib", tmp, sizeof(tmp)); + if (i < 0) + strcpy(tmp, CONFIG_AUTOCALIB); + + if (strcmp(tmp, "final") == 0) { + /* display the final autocalibration results only */ + verbose_lvl = 1; + } else if (strcmp(tmp, "loop") == 0) { + /* display summary autocalibration info per iteration */ + verbose_lvl = 2; + } else if (strcmp(tmp, "display") == 0) { + /* display full debug autocalibration window info. */ + verbose_lvl = 3; + } +#endif /* (DEBUG_PPC4xx_DDR_AUTOCALIBRATION) */ + + best_rdcc = (SDRAM_RDCC_RDSS_T4 >> 30); + + while ((scan_list->wrdtr != -1) && (scan_list->clktr != -1)) { + wdtr = scan_list->wrdtr; + clkp = scan_list->clktr; + + mfsdram(SDRAM_WRDTR, val); + val &= ~(SDRAM_WRDTR_LLWP_MASK | SDRAM_WRDTR_WTR_MASK); + mtsdram(SDRAM_WRDTR, (val | + ddr_wrdtr(SDRAM_WRDTR_LLWP_1_CYC | (wdtr << 25)))); + + mtsdram(SDRAM_CLKTR, clkp << 30); + + relock_memory_DLL(); + + putc('\b'); + putc(slash[loopi++ % 8]); + +#ifdef DEBUG + debug("\n"); + debug("*** --------------\n"); + mfsdram(SDRAM_WRDTR, val); + debug("*** SDRAM_WRDTR set to 0x%08x\n", val); + mfsdram(SDRAM_CLKTR, val); + debug("*** SDRAM_CLKTR set to 0x%08x\n", val); +#endif + + debug("\n"); + if (verbose_lvl > 2) { + printf("*** SDRAM_WRDTR (wdtr) set to %d\n", wdtr); + printf("*** SDRAM_CLKTR (clkp) set to %d\n", clkp); + } + + memset(&ddrcal, 0, sizeof(ddrcal)); + + /* + * DQS calibration. + */ + /* + * program_DQS_calibration_method[A|B]() returns 0 if no + * passing RFDC.[RFFD] window is found or returns the size + * of the best passing window; in the case of a found passing + * window, the ddrcal will contain the values of the best + * window RQDC.[RQFD] and RFDC.[RFFD]. + */ + + /* + * Call PPC4xx SDRAM DDR autocalibration methodA or methodB. + * Default is methodB. + * Defined the autocalibration method in the board specific + * header file. + * Please see include/configs/kilauea.h for an example for + * a board specific implementation. + */ +#if defined(CONFIG_PPC4xx_DDR_METHOD_A) + result = program_DQS_calibration_methodA(&ddrcal); +#else + result = program_DQS_calibration_methodB(&ddrcal); +#endif + + sync(); + + /* + * Clear potential errors resulting from auto-calibration. + * If not done, then we could get an interrupt later on when + * exceptions are enabled. + */ + set_mcsr(get_mcsr()); + + val = ddrcal.rdcc; /* RDCC from the best passing window */ + + udelay(100); + + if (verbose_lvl > 1) { + char *tstr; + switch ((val >> 30)) { + case 0: + if (result != 0) + tstr = "T1"; + else + tstr = "N/A"; + break; + case 1: + tstr = "T2"; + break; + case 2: + tstr = "T3"; + break; + case 3: + tstr = "T4"; + break; + default: + tstr = "unknown"; + break; + } + printf("** WRDTR(%d) CLKTR(%d), Wind (%d), best (%d), " + "max-min(0x%04x)(0x%04x), RDCC: %s\n", + wdtr, clkp, result, best_result, + ddrcal.rffd_min, ddrcal.rffd_max, tstr); + } + + /* + * The DQS calibration "result" is either "0" + * if no passing window was found, or is the + * size of the RFFD passing window. + */ + /* + * want the lowest Read Sample Cycle Select + */ + val = SDRAM_RDCC_RDSS_DECODE(val); + debug("*** (%d) (%d) current_rdcc, best_rdcc\n", + val, best_rdcc); + + if ((result != 0) && + (val >= SDRAM_RDCC_RDSS_VAL(SDRAM_RDCC_RDSS_T2))) { + if (((result == best_result) && (val < best_rdcc)) || + ((result > best_result) && (val <= best_rdcc))) { + tcal.autocal.flags = 1; + debug("*** (%d)(%d) result passed window " + "size: 0x%08x, rqfd = 0x%08x, " + "rffd = 0x%08x, rdcc = 0x%08x\n", + wdtr, clkp, result, ddrcal.rqfd, + ddrcal.rffd, ddrcal.rdcc); + + /* + * Save the SDRAM_WRDTR and SDRAM_CLKTR + * settings for the largest returned + * RFFD passing window size. + */ + best_rdcc = val; + tcal.clocks.wrdtr = wdtr; + tcal.clocks.clktr = clkp; + tcal.clocks.rdcc = SDRAM_RDCC_RDSS_ENCODE(val); + tcal.autocal.rqfd = ddrcal.rqfd; + tcal.autocal.rffd = ddrcal.rffd; + best_result = result; + + if (verbose_lvl > 2) { + printf("** (%d)(%d) " + "best result: 0x%04x\n", + wdtr, clkp, + best_result); + printf("** (%d)(%d) " + "best WRDTR: 0x%04x\n", + wdtr, clkp, + tcal.clocks.wrdtr); + printf("** (%d)(%d) " + "best CLKTR: 0x%04x\n", + wdtr, clkp, + tcal.clocks.clktr); + printf("** (%d)(%d) " + "best RQDC: 0x%04x\n", + wdtr, clkp, + tcal.autocal.rqfd); + printf("** (%d)(%d) " + "best RFDC: 0x%04x\n", + wdtr, clkp, + tcal.autocal.rffd); + printf("** (%d)(%d) " + "best RDCC: 0x%08x\n", + wdtr, clkp, + (u32)tcal.clocks.rdcc); + mfsdram(SDRAM_RTSR, val); + printf("** (%d)(%d) best " + "loop RTSR: 0x%08x\n", + wdtr, clkp, val); + mfsdram(SDRAM_FCSR, val); + printf("** (%d)(%d) best " + "loop FCSR: 0x%08x\n", + wdtr, clkp, val); + } + } + } /* if ((result != 0) && (val >= (ddr_rdss_opt()))) */ + scan_list++; + } /* while ((scan_list->wrdtr != -1) && (scan_list->clktr != -1)) */ + + if (tcal.autocal.flags == 1) { + if (verbose_lvl > 0) { + printf("*** --------------\n"); + printf("*** best_result window size: %d\n", + best_result); + printf("*** best_result WRDTR: 0x%04x\n", + tcal.clocks.wrdtr); + printf("*** best_result CLKTR: 0x%04x\n", + tcal.clocks.clktr); + printf("*** best_result RQFD: 0x%04x\n", + tcal.autocal.rqfd); + printf("*** best_result RFFD: 0x%04x\n", + tcal.autocal.rffd); + printf("*** best_result RDCC: 0x%04x\n", + tcal.clocks.rdcc); + printf("*** --------------\n"); + printf("\n"); + } + + /* + * if got best passing result window, then lock in the + * best CLKTR, WRDTR, RQFD, and RFFD values + */ + mfsdram(SDRAM_WRDTR, val); + mtsdram(SDRAM_WRDTR, (val & + ~(SDRAM_WRDTR_LLWP_MASK | SDRAM_WRDTR_WTR_MASK)) | + ddr_wrdtr(SDRAM_WRDTR_LLWP_1_CYC | + (tcal.clocks.wrdtr << 25))); + + mtsdram(SDRAM_CLKTR, tcal.clocks.clktr << 30); + + relock_memory_DLL(); + + mfsdram(SDRAM_RQDC, rqdc_reg); + rqdc_reg &= ~(SDRAM_RQDC_RQFD_MASK); + mtsdram(SDRAM_RQDC, rqdc_reg | + SDRAM_RQDC_RQFD_ENCODE(tcal.autocal.rqfd)); + + mfsdram(SDRAM_RQDC, rqdc_reg); + debug("*** best_result: read value SDRAM_RQDC 0x%08x\n", + rqdc_reg); + + mfsdram(SDRAM_RFDC, rfdc_reg); + rfdc_reg &= ~(SDRAM_RFDC_RFFD_MASK); + mtsdram(SDRAM_RFDC, rfdc_reg | + SDRAM_RFDC_RFFD_ENCODE(tcal.autocal.rffd)); + + mfsdram(SDRAM_RFDC, rfdc_reg); + debug("*** best_result: read value SDRAM_RFDC 0x%08x\n", + rfdc_reg); + mfsdram(SDRAM_RDCC, val); + debug("*** SDRAM_RDCC 0x%08x\n", val); + } else { + /* + * no valid windows were found + */ + printf("DQS memory calibration window can not be determined, " + "terminating u-boot.\n"); + ppc4xx_ibm_ddr2_register_dump(); + spd_ddr_init_hang(); + } + + blank_string(strlen(str)); + + return 0; +} +#else /* defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL) */ +u32 DQS_autocalibration(void) +{ + return 0; +} +#endif /* !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) */ +#endif /* defined(CONFIG_PPC4xx_DDR_AUTOCALIBRATION) */ diff --git a/arch/ppc/cpu/ppc4xx/4xx_pci.c b/arch/ppc/cpu/ppc4xx/4xx_pci.c new file mode 100644 index 0000000..eed4534 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/4xx_pci.c @@ -0,0 +1,873 @@ +/*-----------------------------------------------------------------------------+ + * This source code is dual-licensed. You may use it under the terms of + * the GNU General Public license version 2, or under the license below. + * + * This source code has been made available to you by IBM on an AS-IS + * basis. Anyone receiving this source is licensed under IBM + * copyrights to use it in any way he or she deems fit, including + * copying it, modifying it, compiling it, and redistributing it either + * with or without modifications. No license under IBM patents or + * patent applications is to be implied by the copyright license. + * + * Any user of this software should understand that IBM cannot provide + * technical support for this software and will not be responsible for + * any consequences resulting from the use of this software. + * + * Any person who transfers this source code or any derivative work + * must include the IBM copyright notice, this paragraph, and the + * preceding two paragraphs in the transferred software. + * + * COPYRIGHT I B M CORPORATION 1995 + * LICENSED MATERIAL - PROGRAM PROPERTY OF I B M + *-----------------------------------------------------------------------------*/ +/*----------------------------------------------------------------------------+ + * + * File Name: 405gp_pci.c + * + * Function: Initialization code for the 405GP PCI Configuration regs. + * + * Author: Mark Game + * + * Change Activity- + * + * Date Description of Change BY + * --------- --------------------- --- + * 09-Sep-98 Created MCG + * 02-Nov-98 Removed External arbiter selected message JWB + * 27-Nov-98 Zero out PTMBAR2 and disable in PTM2MS JWB + * 04-Jan-99 Zero out other unused PMM and PTM regs. Change bus scan MCG + * from (0 to n) to (1 to n). + * 17-May-99 Port to Walnut JWB + * 17-Jun-99 Updated for VGA support JWB + * 21-Jun-99 Updated to allow SRAM region to be a target from PCI bus JWB + * 19-Jul-99 Updated for 405GP pass 1 errata #26 (Low PCI subsequent MCG + * target latency timer values are not supported). + * Should be fixed in pass 2. + * 09-Sep-99 Removed use of PTM2 since the SRAM region no longer needs JWB + * to be a PCI target. Zero out PTMBAR2 and disable in PTM2MS. + * 10-Dec-99 Updated PCI_Write_CFG_Reg for pass2 errata #6 JWB + * 11-Jan-00 Ensure PMMxMAs disabled before setting PMMxLAs. This is not + * really required after a reset since PMMxMAs are already + * disabled but is a good practice nonetheless. JWB + * 12-Jun-01 stefan.roese@esd-electronics.com + * - PCI host/adapter handling reworked + * 09-Jul-01 stefan.roese@esd-electronics.com + * - PCI host now configures from device 0 (not 1) to max_dev, + * (host configures itself) + * - On CPCI-405 pci base address and size is generated from + * SDRAM and FLASH size (CFG regs not used anymore) + * - Some minor changes for CPCI-405-A (adapter version) + * 14-Sep-01 stefan.roese@esd-electronics.com + * - CONFIG_PCI_SCAN_SHOW added to print pci devices upon startup + * 28-Sep-01 stefan.roese@esd-electronics.com + * - Changed pci master configuration for linux compatibility + * (no need for bios_fixup() anymore) + * 26-Feb-02 stefan.roese@esd-electronics.com + * - Bug fixed in pci configuration (Andrew May) + * - Removed pci class code init for CPCI405 board + * 15-May-02 stefan.roese@esd-electronics.com + * - New vga device handling + * 29-May-02 stefan.roese@esd-electronics.com + * - PCI class code init added (if defined) + *----------------------------------------------------------------------------*/ + +#include <common.h> +#include <command.h> +#include <asm/4xx_pci.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <pci.h> + +#ifdef CONFIG_PCI + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_405GP) || defined(CONFIG_405EP) + +#if defined(CONFIG_PMC405) +ushort pmc405_pci_subsys_deviceid(void); +#endif + +/*#define DEBUG*/ + +/* + * Board-specific pci initialization + * Platform code can reimplement pci_pre_init() if needed + */ +int __pci_pre_init(struct pci_controller *hose) +{ +#if defined(CONFIG_405EP) + /* + * Enable the internal PCI arbiter by default. + * + * On 405EP CPUs the internal arbiter can be controlled + * by the I2C strapping EEPROM. If you want to do so + * or if you want to disable the arbiter pci_pre_init() + * must be reimplemented without enabling the arbiter. + * The arbiter is enabled in this place because of + * compatibility reasons. + */ + mtdcr(CPC0_PCI, mfdcr(CPC0_PCI) | CPC0_PCI_ARBIT_EN); +#endif /* CONFIG_405EP */ + + return 1; +} +int pci_pre_init(struct pci_controller *hose) + __attribute__((weak, alias("__pci_pre_init"))); + +int __is_pci_host(struct pci_controller *hose) +{ +#if defined(CONFIG_405GP) + if (mfdcr(CPC0_PSR) & PSR_PCI_ARBIT_EN) + return 1; +#elif defined (CONFIG_405EP) + if (mfdcr(CPC0_PCI) & CPC0_PCI_ARBIT_EN) + return 1; +#endif + return 0; +} +int is_pci_host(struct pci_controller *hose) __attribute__((weak, alias("__is_pci_host"))); + +/*-----------------------------------------------------------------------------+ + * pci_init. Initializes the 405GP PCI Configuration regs. + *-----------------------------------------------------------------------------*/ +void pci_405gp_init(struct pci_controller *hose) +{ + int i, reg_num = 0; + bd_t *bd = gd->bd; + + unsigned short temp_short; + unsigned long ptmpcila[2] = {CONFIG_SYS_PCI_PTM1PCI, CONFIG_SYS_PCI_PTM2PCI}; +#if defined(CONFIG_PCI_4xx_PTM_OVERWRITE) + char *ptmla_str, *ptmms_str; +#endif + unsigned long ptmla[2] = {CONFIG_SYS_PCI_PTM1LA, CONFIG_SYS_PCI_PTM2LA}; + unsigned long ptmms[2] = {CONFIG_SYS_PCI_PTM1MS, CONFIG_SYS_PCI_PTM2MS}; +#if defined(CONFIG_PIP405) || defined (CONFIG_MIP405) + unsigned long pmmla[3] = {0x80000000, 0xA0000000, 0}; + unsigned long pmmma[3] = {0xE0000001, 0xE0000001, 0}; + unsigned long pmmpcila[3] = {0x80000000, 0x00000000, 0}; + unsigned long pmmpciha[3] = {0x00000000, 0x00000000, 0}; +#else + unsigned long pmmla[3] = {0x80000000, 0,0}; + unsigned long pmmma[3] = {0xC0000001, 0,0}; + unsigned long pmmpcila[3] = {0x80000000, 0,0}; + unsigned long pmmpciha[3] = {0x00000000, 0,0}; +#endif +#ifdef CONFIG_PCI_PNP +#if (CONFIG_PCI_HOST == PCI_HOST_AUTO) + char *s; +#endif +#endif + +#if defined(CONFIG_PCI_4xx_PTM_OVERWRITE) + ptmla_str = getenv("ptm1la"); + ptmms_str = getenv("ptm1ms"); + if(NULL != ptmla_str && NULL != ptmms_str ) { + ptmla[0] = simple_strtoul (ptmla_str, NULL, 16); + ptmms[0] = simple_strtoul (ptmms_str, NULL, 16); + } + + ptmla_str = getenv("ptm2la"); + ptmms_str = getenv("ptm2ms"); + if(NULL != ptmla_str && NULL != ptmms_str ) { + ptmla[1] = simple_strtoul (ptmla_str, NULL, 16); + ptmms[1] = simple_strtoul (ptmms_str, NULL, 16); + } +#endif + + /* + * Register the hose + */ + hose->first_busno = 0; + hose->last_busno = 0xff; + + /* ISA/PCI I/O space */ + pci_set_region(hose->regions + reg_num++, + MIN_PCI_PCI_IOADDR, + MIN_PLB_PCI_IOADDR, + 0x10000, + PCI_REGION_IO); + + /* PCI I/O space */ + pci_set_region(hose->regions + reg_num++, + 0x00800000, + 0xe8800000, + 0x03800000, + PCI_REGION_IO); + + reg_num = 2; + + /* Memory spaces */ + for (i=0; i<2; i++) + if (ptmms[i] & 1) + { + if (!i) hose->pci_fb = hose->regions + reg_num; + + pci_set_region(hose->regions + reg_num++, + ptmpcila[i], ptmla[i], + ~(ptmms[i] & 0xfffff000) + 1, + PCI_REGION_MEM | + PCI_REGION_SYS_MEMORY); + } + + /* PCI memory spaces */ + for (i=0; i<3; i++) + if (pmmma[i] & 1) + { + pci_set_region(hose->regions + reg_num++, + pmmpcila[i], pmmla[i], + ~(pmmma[i] & 0xfffff000) + 1, + PCI_REGION_MEM); + } + + hose->region_count = reg_num; + + pci_setup_indirect(hose, + PCICFGADR, + PCICFGDATA); + + if (hose->pci_fb) + pciauto_region_init(hose->pci_fb); + + /* Let board change/modify hose & do initial checks */ + if (pci_pre_init(hose) == 0) { + printf("PCI: Board-specific initialization failed.\n"); + printf("PCI: Configuration aborted.\n"); + return; + } + + pci_register_hose(hose); + + /*--------------------------------------------------------------------------+ + * 405GP PCI Master configuration. + * Map one 512 MB range of PLB/processor addresses to PCI memory space. + * PLB address 0x80000000-0xBFFFFFFF ==> PCI address 0x80000000-0xBFFFFFFF + * Use byte reversed out routines to handle endianess. + *--------------------------------------------------------------------------*/ + out32r(PMM0MA, (pmmma[0]&~0x1)); /* disable, configure PMMxLA, PMMxPCILA first */ + out32r(PMM0LA, pmmla[0]); + out32r(PMM0PCILA, pmmpcila[0]); + out32r(PMM0PCIHA, pmmpciha[0]); + out32r(PMM0MA, pmmma[0]); + + /*--------------------------------------------------------------------------+ + * PMM1 is not used. Initialize them to zero. + *--------------------------------------------------------------------------*/ + out32r(PMM1MA, (pmmma[1]&~0x1)); + out32r(PMM1LA, pmmla[1]); + out32r(PMM1PCILA, pmmpcila[1]); + out32r(PMM1PCIHA, pmmpciha[1]); + out32r(PMM1MA, pmmma[1]); + + /*--------------------------------------------------------------------------+ + * PMM2 is not used. Initialize them to zero. + *--------------------------------------------------------------------------*/ + out32r(PMM2MA, (pmmma[2]&~0x1)); + out32r(PMM2LA, pmmla[2]); + out32r(PMM2PCILA, pmmpcila[2]); + out32r(PMM2PCIHA, pmmpciha[2]); + out32r(PMM2MA, pmmma[2]); + + /*--------------------------------------------------------------------------+ + * 405GP PCI Target configuration. (PTM1) + * Note: PTM1MS is hardwire enabled but we set the enable bit anyway. + *--------------------------------------------------------------------------*/ + out32r(PTM1LA, ptmla[0]); /* insert address */ + out32r(PTM1MS, ptmms[0]); /* insert size, enable bit is 1 */ + pci_write_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_1, ptmpcila[0]); + + /*--------------------------------------------------------------------------+ + * 405GP PCI Target configuration. (PTM2) + *--------------------------------------------------------------------------*/ + out32r(PTM2LA, ptmla[1]); /* insert address */ + pci_write_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_2, ptmpcila[1]); + + if (ptmms[1] == 0) + { + out32r(PTM2MS, 0x00000001); /* set enable bit */ + pci_write_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_2, 0x00000000); + out32r(PTM2MS, 0x00000000); /* disable */ + } + else + { + out32r(PTM2MS, ptmms[1]); /* insert size, enable bit is 1 */ + } + + /* + * Insert Subsystem Vendor and Device ID + */ + pci_write_config_word(PCIDEVID_405GP, PCI_SUBSYSTEM_VENDOR_ID, CONFIG_SYS_PCI_SUBSYS_VENDORID); +#ifdef CONFIG_CPCI405 + if (is_pci_host(hose)) + pci_write_config_word(PCIDEVID_405GP, PCI_SUBSYSTEM_ID, CONFIG_SYS_PCI_SUBSYS_DEVICEID); + else + pci_write_config_word(PCIDEVID_405GP, PCI_SUBSYSTEM_ID, CONFIG_SYS_PCI_SUBSYS_DEVICEID2); +#else + pci_write_config_word(PCIDEVID_405GP, PCI_SUBSYSTEM_ID, CONFIG_SYS_PCI_SUBSYS_DEVICEID); +#endif + + /* + * Insert Class-code + */ +#ifdef CONFIG_SYS_PCI_CLASSCODE + pci_write_config_word(PCIDEVID_405GP, PCI_CLASS_SUB_CODE, CONFIG_SYS_PCI_CLASSCODE); +#endif /* CONFIG_SYS_PCI_CLASSCODE */ + + /*--------------------------------------------------------------------------+ + * If PCI speed = 66MHz, set 66MHz capable bit. + *--------------------------------------------------------------------------*/ + if (bd->bi_pci_busfreq >= 66000000) { + pci_read_config_word(PCIDEVID_405GP, PCI_STATUS, &temp_short); + pci_write_config_word(PCIDEVID_405GP,PCI_STATUS,(temp_short|PCI_STATUS_66MHZ)); + } + +#if (CONFIG_PCI_HOST != PCI_HOST_ADAPTER) +#if (CONFIG_PCI_HOST == PCI_HOST_AUTO) + if (is_pci_host(hose) || + (((s = getenv("pciscan")) != NULL) && (strcmp(s, "yes") == 0))) +#endif + { + /*--------------------------------------------------------------------------+ + * Write the 405GP PCI Configuration regs. + * Enable 405GP to be a master on the PCI bus (PMM). + * Enable 405GP to act as a PCI memory target (PTM). + *--------------------------------------------------------------------------*/ + pci_read_config_word(PCIDEVID_405GP, PCI_COMMAND, &temp_short); + pci_write_config_word(PCIDEVID_405GP, PCI_COMMAND, temp_short | + PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); + } +#endif + +#if defined(CONFIG_405EP) + /* + * on ppc405ep vendor/device id is not set + * The user manual says 0x1014 (IBM) / 0x0156 (405GP!) + * are the correct values. + */ + pci_write_config_word(PCIDEVID_405GP, PCI_VENDOR_ID, PCI_VENDOR_ID_IBM); + pci_write_config_word(PCIDEVID_405GP, + PCI_DEVICE_ID, PCI_DEVICE_ID_IBM_405GP); +#endif + + /* + * Set HCE bit (Host Configuration Enabled) + */ + pci_read_config_word(PCIDEVID_405GP, PCIBRDGOPT2, &temp_short); + pci_write_config_word(PCIDEVID_405GP, PCIBRDGOPT2, (temp_short | 0x0001)); + +#ifdef CONFIG_PCI_PNP + /*--------------------------------------------------------------------------+ + * Scan the PCI bus and configure devices found. + *--------------------------------------------------------------------------*/ +#if (CONFIG_PCI_HOST == PCI_HOST_AUTO) + if (is_pci_host(hose) || + (((s = getenv("pciscan")) != NULL) && (strcmp(s, "yes") == 0))) +#endif + { +#ifdef CONFIG_PCI_SCAN_SHOW + printf("PCI: Bus Dev VenId DevId Class Int\n"); +#endif + hose->last_busno = pci_hose_scan(hose); + } +#endif /* CONFIG_PCI_PNP */ + +} + +/* + * drivers/pci/pci.c skips every host bridge but the 405GP since it could + * be set as an Adapter. + * + * I (Andrew May) don't know what we should do here, but I don't want + * the auto setup of a PCI device disabling what is done pci_405gp_init + * as has happened before. + */ +void pci_405gp_setup_bridge(struct pci_controller *hose, pci_dev_t dev, + struct pci_config_table *entry) +{ +#ifdef DEBUG + printf("405gp_setup_bridge\n"); +#endif +} + +/* + * + */ + +void pci_405gp_fixup_irq(struct pci_controller *hose, pci_dev_t dev) +{ + unsigned char int_line = 0xff; + + /* + * Write pci interrupt line register (cpci405 specific) + */ + switch (PCI_DEV(dev) & 0x03) + { + case 0: + int_line = 27 + 2; + break; + case 1: + int_line = 27 + 3; + break; + case 2: + int_line = 27 + 0; + break; + case 3: + int_line = 27 + 1; + break; + } + + pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line); +} + +void pci_405gp_setup_vga(struct pci_controller *hose, pci_dev_t dev, + struct pci_config_table *entry) +{ + unsigned int cmdstat = 0; + + pciauto_setup_device(hose, dev, 6, hose->pci_mem, hose->pci_prefetch, hose->pci_io); + + /* always enable io space on vga boards */ + pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &cmdstat); + cmdstat |= PCI_COMMAND_IO; + pci_hose_write_config_dword(hose, dev, PCI_COMMAND, cmdstat); +} + +#if !(defined(CONFIG_PIP405) || defined (CONFIG_MIP405)) && !(defined (CONFIG_SC3)) + +/* + *As is these functs get called out of flash Not a horrible + *thing, but something to keep in mind. (no statics?) + */ +static struct pci_config_table pci_405gp_config_table[] = { +/*if VendID is 0 it terminates the table search (ie Walnut)*/ +#ifdef CONFIG_SYS_PCI_SUBSYS_VENDORID + {CONFIG_SYS_PCI_SUBSYS_VENDORID, PCI_ANY_ID, PCI_CLASS_BRIDGE_HOST, + PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, pci_405gp_setup_bridge}, +#endif + {PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA, + PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, pci_405gp_setup_vga}, + + {PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_NOT_DEFINED_VGA, + PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, pci_405gp_setup_vga}, + + { } +}; + +static struct pci_controller hose = { + fixup_irq: pci_405gp_fixup_irq, + config_table: pci_405gp_config_table, +}; + +void pci_init_board(void) +{ + /*we want the ptrs to RAM not flash (ie don't use init list)*/ + hose.fixup_irq = pci_405gp_fixup_irq; + hose.config_table = pci_405gp_config_table; + pci_405gp_init(&hose); +} + +#endif + +#endif /* CONFIG_405GP */ + +/*-----------------------------------------------------------------------------+ + * CONFIG_440 + *-----------------------------------------------------------------------------*/ +#if defined(CONFIG_440) + +static struct pci_controller ppc440_hose = {0}; + +/* + * This routine is called to determine if a pci scan should be + * performed. With various hardware environments (especially cPCI and + * PPMC) it's insufficient to depend on the state of the arbiter enable + * bit in the strap register, or generic host/adapter assumptions. + * + * Rather than hard-code a bad assumption in the general 440 code, the + * 440 pci code requires the board to decide at runtime. + * + * Return 0 for adapter mode, non-zero for host (monarch) mode. + * + * Weak default implementation: "Normal" boards implement the PCI + * host functionality. This can be overridden for PCI adapter boards. + */ +int __is_pci_host(struct pci_controller *hose) +{ + return 1; +} +int is_pci_host(struct pci_controller *hose) + __attribute__((weak, alias("__is_pci_host"))); + +#if defined(CONFIG_440EP) || defined(CONFIG_440EPX) || \ + defined(CONFIG_440GR) || defined(CONFIG_440GRX) + +#if defined(CONFIG_SYS_PCI_TARGET_INIT) +/* + * pci_target_init + * + * The bootstrap configuration provides default settings for the pci + * inbound map (PIM). But the bootstrap config choices are limited and + * may not be sufficient for a given board. + */ +void __pci_target_init(struct pci_controller *hose) +{ + /* + * Set up Direct MMIO registers + */ + + /* + * PowerPC440 EP PCI Master configuration. + * Map one 1Gig range of PLB/processor addresses to PCI memory space. + * PLB address 0xA0000000-0xDFFFFFFF ==> PCI address 0xA0000000-0xDFFFFFFF + * Use byte reversed out routines to handle endianess. + * Make this region non-prefetchable. + */ + /* PMM0 Mask/Attribute - disabled b4 setting */ + out_le32((void *)PCIL0_PMM0MA, 0x00000000); + /* PMM0 Local Address */ + out_le32((void *)PCIL0_PMM0LA, CONFIG_SYS_PCI_MEMBASE); + /* PMM0 PCI Low Address */ + out_le32((void *)PCIL0_PMM0PCILA, CONFIG_SYS_PCI_MEMBASE); + /* PMM0 PCI High Address */ + out_le32((void *)PCIL0_PMM0PCIHA, 0x00000000); + /* 512M + No prefetching, and enable region */ + out_le32((void *)PCIL0_PMM0MA, 0xE0000001); + + /* PMM1 Mask/Attribute - disabled b4 setting */ + out_le32((void *)PCIL0_PMM1MA, 0x00000000); + /* PMM1 Local Address */ + out_le32((void *)PCIL0_PMM1LA, CONFIG_SYS_PCI_MEMBASE2); + /* PMM1 PCI Low Address */ + out_le32((void *)PCIL0_PMM1PCILA, CONFIG_SYS_PCI_MEMBASE2); + /* PMM1 PCI High Address */ + out_le32((void *)PCIL0_PMM1PCIHA, 0x00000000); + /* 512M + No prefetching, and enable region */ + out_le32((void *)PCIL0_PMM1MA, 0xE0000001); + + out_le32((void *)PCIL0_PTM1MS, 0x00000001); /* Memory Size/Attribute */ + out_le32((void *)PCIL0_PTM1LA, 0); /* Local Addr. Reg */ + out_le32((void *)PCIL0_PTM2MS, 0); /* Memory Size/Attribute */ + out_le32((void *)PCIL0_PTM2LA, 0); /* Local Addr. Reg */ + + /* + * Set up Configuration registers + */ + + /* Program the board's subsystem id/vendor id */ + pci_write_config_word(0, PCI_SUBSYSTEM_VENDOR_ID, + CONFIG_SYS_PCI_SUBSYS_VENDORID); + pci_write_config_word(0, PCI_SUBSYSTEM_ID, CONFIG_SYS_PCI_SUBSYS_ID); + + /* Configure command register as bus master */ + pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER); + + /* 240nS PCI clock */ + pci_write_config_word(0, PCI_LATENCY_TIMER, 1); + + /* No error reporting */ + pci_write_config_word(0, PCI_ERREN, 0); + + pci_write_config_dword(0, PCI_BRDGOPT2, 0x00000101); +} +#endif /* CONFIG_SYS_PCI_TARGET_INIT */ + +/* + * pci_pre_init + * + * This routine is called just prior to registering the hose and gives + * the board the opportunity to check things. Returning a value of zero + * indicates that things are bad & PCI initialization should be aborted. + * + * Different boards may wish to customize the pci controller structure + * (add regions, override default access routines, etc) or perform + * certain pre-initialization actions. + * + */ +int __pci_pre_init(struct pci_controller *hose) +{ + u32 reg; + + /* + * Set priority for all PLB3 devices to 0. + * Set PLB3 arbiter to fair mode. + */ + mfsdr(SD0_AMP1, reg); + mtsdr(SD0_AMP1, (reg & 0x000000FF) | 0x0000FF00); + reg = mfdcr(PLB3_ACR); + mtdcr(PLB3_ACR, reg | 0x80000000); + + /* + * Set priority for all PLB4 devices to 0. + */ + mfsdr(SD0_AMP0, reg); + mtsdr(SD0_AMP0, (reg & 0x000000FF) | 0x0000FF00); + reg = mfdcr(PLB4_ACR) | 0xa0000000; + mtdcr(PLB4_ACR, reg); + + /* + * Set Nebula PLB4 arbiter to fair mode. + */ + /* Segment0 */ + reg = (mfdcr(PLB0_ACR) & ~PLB0_ACR_PPM_MASK) | PLB0_ACR_PPM_FAIR; + reg = (reg & ~PLB0_ACR_HBU_MASK) | PLB0_ACR_HBU_ENABLED; + reg = (reg & ~PLB0_ACR_RDP_MASK) | PLB0_ACR_RDP_4DEEP; + reg = (reg & ~PLB0_ACR_WRP_MASK) | PLB0_ACR_WRP_2DEEP; + mtdcr(PLB0_ACR, reg); + + /* Segment1 */ + reg = (mfdcr(PLB1_ACR) & ~PLB1_ACR_PPM_MASK) | PLB1_ACR_PPM_FAIR; + reg = (reg & ~PLB1_ACR_HBU_MASK) | PLB1_ACR_HBU_ENABLED; + reg = (reg & ~PLB1_ACR_RDP_MASK) | PLB1_ACR_RDP_4DEEP; + reg = (reg & ~PLB1_ACR_WRP_MASK) | PLB1_ACR_WRP_2DEEP; + mtdcr(PLB1_ACR, reg); + +#if defined(CONFIG_SYS_PCI_BOARD_FIXUP_IRQ) + hose->fixup_irq = board_pci_fixup_irq; +#endif + + return 1; +} + +#else /* defined(CONFIG_440EP) ... */ + +#if defined(CONFIG_SYS_PCI_TARGET_INIT) +void __pci_target_init(struct pci_controller * hose) +{ + /* + * Disable everything + */ + out_le32((void *)PCIL0_PIM0SA, 0); /* disable */ + out_le32((void *)PCIL0_PIM1SA, 0); /* disable */ + out_le32((void *)PCIL0_PIM2SA, 0); /* disable */ + out_le32((void *)PCIL0_EROMBA, 0); /* disable expansion rom */ + + /* + * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 + * strapping options do not support sizes such as 128/256 MB. + */ + out_le32((void *)PCIL0_PIM0LAL, CONFIG_SYS_SDRAM_BASE); + out_le32((void *)PCIL0_PIM0LAH, 0); + out_le32((void *)PCIL0_PIM0SA, ~(gd->ram_size - 1) | 1); + out_le32((void *)PCIL0_BAR0, 0); + + /* + * Program the board's subsystem id/vendor id + */ + out_le16((void *)PCIL0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID); + out_le16((void *)PCIL0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_DEVICEID); + + out_le16((void *)PCIL0_CMD, in_le16((void *)PCIL0_CMD) | + PCI_COMMAND_MEMORY); +} +#endif /* CONFIG_SYS_PCI_TARGET_INIT */ + +int __pci_pre_init(struct pci_controller *hose) +{ + /* + * This board is always configured as the host & requires the + * PCI arbiter to be enabled. + */ + if (!pci_arbiter_enabled()) { + printf("PCI: PCI Arbiter disabled!\n"); + return 0; + } + + return 1; +} + +#endif /* defined(CONFIG_440EP) ... */ + +#if defined(CONFIG_SYS_PCI_TARGET_INIT) +void pci_target_init(struct pci_controller * hose) + __attribute__((weak, alias("__pci_target_init"))); +#endif /* CONFIG_SYS_PCI_TARGET_INIT */ + +int pci_pre_init(struct pci_controller *hose) + __attribute__((weak, alias("__pci_pre_init"))); + +#if defined(CONFIG_SYS_PCI_MASTER_INIT) +void __pci_master_init(struct pci_controller *hose) +{ + u16 reg; + + /* + * Write the PowerPC440 EP PCI Configuration regs. + * Enable PowerPC440 EP to be a master on the PCI bus (PMM). + * Enable PowerPC440 EP to act as a PCI memory target (PTM). + */ + pci_read_config_word(0, PCI_COMMAND, ®); + pci_write_config_word(0, PCI_COMMAND, reg | + PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); +} +void pci_master_init(struct pci_controller *hose) + __attribute__((weak, alias("__pci_master_init"))); +#endif /* CONFIG_SYS_PCI_MASTER_INIT */ + +int pci_440_init (struct pci_controller *hose) +{ + int reg_num = 0; + +#ifndef CONFIG_DISABLE_PISE_TEST + /*--------------------------------------------------------------------------+ + * The PCI initialization sequence enable bit must be set ... if not abort + * pci setup since updating the bit requires chip reset. + *--------------------------------------------------------------------------*/ +#if defined(CONFIG_440GX) || defined(CONFIG_440SP) || defined(CONFIG_440SPE) + unsigned long strap; + + mfsdr(SDR0_SDSTP1,strap); + if ((strap & SDR0_SDSTP1_PISE_MASK) == 0) { + printf("PCI: SDR0_STRP1[PISE] not set.\n"); + printf("PCI: Configuration aborted.\n"); + return -1; + } +#elif defined(CONFIG_440GP) + unsigned long strap; + + strap = mfdcr(CPC0_STRP1); + if ((strap & CPC0_STRP1_PISE_MASK) == 0) { + printf("PCI: CPC0_STRP1[PISE] not set.\n"); + printf("PCI: Configuration aborted.\n"); + return -1; + } +#endif +#endif /* CONFIG_DISABLE_PISE_TEST */ + + /*--------------------------------------------------------------------------+ + * PCI controller init + *--------------------------------------------------------------------------*/ + hose->first_busno = 0; + hose->last_busno = 0; + + /* PCI I/O space */ + pci_set_region(hose->regions + reg_num++, + 0x00000000, + PCIL0_IOBASE, + 0x10000, + PCI_REGION_IO); + + /* PCI memory space */ + pci_set_region(hose->regions + reg_num++, + CONFIG_SYS_PCI_TARGBASE, + CONFIG_SYS_PCI_MEMBASE, +#ifdef CONFIG_SYS_PCI_MEMSIZE + CONFIG_SYS_PCI_MEMSIZE, +#else + 0x10000000, +#endif + PCI_REGION_MEM ); + +#if defined(CONFIG_PCI_SYS_MEM_BUS) && defined(CONFIG_PCI_SYS_MEM_PHYS) && \ + defined(CONFIG_PCI_SYS_MEM_SIZE) + /* System memory space */ + pci_set_region(hose->regions + reg_num++, + CONFIG_PCI_SYS_MEM_BUS, + CONFIG_PCI_SYS_MEM_PHYS, + CONFIG_PCI_SYS_MEM_SIZE, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY ); +#endif + + hose->region_count = reg_num; + + pci_setup_indirect(hose, PCIL0_CFGADR, PCIL0_CFGDATA); + + /* Let board change/modify hose & do initial checks */ + if (pci_pre_init(hose) == 0) { + printf("PCI: Board-specific initialization failed.\n"); + printf("PCI: Configuration aborted.\n"); + return -1; + } + + pci_register_hose( hose ); + + /*--------------------------------------------------------------------------+ + * PCI target init + *--------------------------------------------------------------------------*/ +#if defined(CONFIG_SYS_PCI_TARGET_INIT) + pci_target_init(hose); /* Let board setup pci target */ +#else + out16r( PCIL0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID ); + out16r( PCIL0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_ID ); + out16r( PCIL0_CLS, 0x00060000 ); /* Bridge, host bridge */ +#endif + +#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) + out32r( PCIL0_BRDGOPT1, 0x04000060 ); /* PLB Rq pri highest */ + out32r( PCIL0_BRDGOPT2, in32(PCIL0_BRDGOPT2) | 0x83 ); /* Enable host config, clear Timeout, ensure int src1 */ +#elif defined(PCIL0_BRDGOPT1) + out32r( PCIL0_BRDGOPT1, 0x10000060 ); /* PLB Rq pri highest */ + out32r( PCIL0_BRDGOPT2, in32(PCIL0_BRDGOPT2) | 1 ); /* Enable host config */ +#endif + + /*--------------------------------------------------------------------------+ + * PCI master init: default is one 256MB region for PCI memory: + * 0x3_00000000 - 0x3_0FFFFFFF ==> CONFIG_SYS_PCI_MEMBASE + *--------------------------------------------------------------------------*/ +#if defined(CONFIG_SYS_PCI_MASTER_INIT) + pci_master_init(hose); /* Let board setup pci master */ +#else + out32r( PCIL0_POM0SA, 0 ); /* disable */ + out32r( PCIL0_POM1SA, 0 ); /* disable */ + out32r( PCIL0_POM2SA, 0 ); /* disable */ +#if defined(CONFIG_440SPE) + out32r( PCIL0_POM0LAL, 0x10000000 ); + out32r( PCIL0_POM0LAH, 0x0000000c ); +#elif defined(CONFIG_460EX) || defined(CONFIG_460GT) + out32r( PCIL0_POM0LAL, 0x20000000 ); + out32r( PCIL0_POM0LAH, 0x0000000c ); +#else + out32r( PCIL0_POM0LAL, 0x00000000 ); + out32r( PCIL0_POM0LAH, 0x00000003 ); +#endif + out32r( PCIL0_POM0PCIAL, CONFIG_SYS_PCI_MEMBASE ); + out32r( PCIL0_POM0PCIAH, 0x00000000 ); + out32r( PCIL0_POM0SA, 0xf0000001 ); /* 256MB, enabled */ + out32r( PCIL0_STS, in32r( PCIL0_STS ) & ~0x0000fff8 ); +#endif + + /*--------------------------------------------------------------------------+ + * PCI host configuration -- we don't make any assumptions here ... the + * _board_must_indicate_ what to do -- there's just too many runtime + * scenarios in environments like cPCI, PPMC, etc. to make a determination + * based on hard-coded values or state of arbiter enable. + *--------------------------------------------------------------------------*/ + if (is_pci_host(hose)) { +#ifdef CONFIG_PCI_SCAN_SHOW + printf("PCI: Bus Dev VenId DevId Class Int\n"); +#endif +#if !defined(CONFIG_440EP) && !defined(CONFIG_440GR) && \ + !defined(CONFIG_440EPX) && !defined(CONFIG_440GRX) + out16r( PCIL0_CMD, in16r( PCIL0_CMD ) | PCI_COMMAND_MASTER); +#endif + hose->last_busno = pci_hose_scan(hose); + } + return hose->last_busno; +} + +void pci_init_board(void) +{ + int busno; + + busno = pci_440_init (&ppc440_hose); +#if (defined(CONFIG_440SPE) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT)) && \ + !defined(CONFIG_PCI_DISABLE_PCIE) + pcie_setup_hoses(busno + 1); +#endif +} + +#endif /* CONFIG_440 */ + +#if defined(CONFIG_405EX) +void pci_init_board(void) +{ +#ifdef CONFIG_PCI_SCAN_SHOW + printf("PCI: Bus Dev VenId DevId Class Int\n"); +#endif + pcie_setup_hoses(0); +} +#endif /* CONFIG_405EX */ + +#endif /* CONFIG_PCI */ diff --git a/arch/ppc/cpu/ppc4xx/4xx_pcie.c b/arch/ppc/cpu/ppc4xx/4xx_pcie.c new file mode 100644 index 0000000..10b58b7 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/4xx_pcie.c @@ -0,0 +1,1298 @@ +/* + * (C) Copyright 2006 - 2008 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (c) 2005 Cisco Systems. All rights reserved. + * Roland Dreier <rolandd@cisco.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +/* define DEBUG for debugging output (obviously ;-)) */ +#if 0 +#define DEBUG +#endif + +#include <common.h> +#include <pci.h> +#include <ppc4xx.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/errno.h> + +#if (defined(CONFIG_440SPE) || defined(CONFIG_405EX) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT)) && \ + defined(CONFIG_PCI) && !defined(CONFIG_PCI_DISABLE_PCIE) + +#include <asm/4xx_pcie.h> + +enum { + PTYPE_ENDPOINT = 0x0, + PTYPE_LEGACY_ENDPOINT = 0x1, + PTYPE_ROOT_PORT = 0x4, + + LNKW_X1 = 0x1, + LNKW_X4 = 0x4, + LNKW_X8 = 0x8 +}; + +static struct pci_controller pcie_hose[CONFIG_SYS_PCIE_NR_PORTS]; + +/* + * Per default, all cards are present, so we need to check if the + * link comes up. + */ +int __board_pcie_card_present(int port) +{ + return 1; +} +int board_pcie_card_present(int port) + __attribute__((weak, alias("__board_pcie_card_present"))); + +/* + * Some boards have runtime detection of the first and last PCIe + * slot used, so let's provide weak default functions for the + * common version. + */ +int __board_pcie_first(void) +{ + return 0; +} +int board_pcie_first(void) + __attribute__((weak, alias("__board_pcie_first"))); + +int __board_pcie_last(void) +{ + return CONFIG_SYS_PCIE_NR_PORTS - 1; +} +int board_pcie_last(void) + __attribute__((weak, alias("__board_pcie_last"))); + +void __board_pcie_setup_port(int port, int rootpoint) +{ + /* noting in this weak default implementation */ +} +void board_pcie_setup_port(int port, int rootpoint) + __attribute__((weak, alias("__board_pcie_setup_port"))); + +void pcie_setup_hoses(int busno) +{ + struct pci_controller *hose; + int i, bus; + int ret = 0; + char *env; + unsigned int delay; + int first = board_pcie_first(); + int last = board_pcie_last(); + + /* + * Assume we're called after the PCI(X) hose(s) are initialized, + * which takes bus ID 0... and therefore start numbering PCIe's + * from the next number. + */ + bus = busno; + + for (i = first; i <= last; i++) { + /* + * Some boards (e.g. Katmai) can detects via hardware + * if a PCIe card is plugged, so let's check this. + */ + if (!board_pcie_card_present(i)) + continue; + + if (is_end_point(i)) { + board_pcie_setup_port(i, 0); + ret = ppc4xx_init_pcie_endport(i); + } else { + board_pcie_setup_port(i, 1); + ret = ppc4xx_init_pcie_rootport(i); + } + if (ret == -ENODEV) + continue; + if (ret) { + printf("PCIE%d: initialization as %s failed\n", i, + is_end_point(i) ? "endpoint" : "root-complex"); + continue; + } + + hose = &pcie_hose[i]; + hose->first_busno = bus; + hose->last_busno = bus; + hose->current_busno = bus; + + /* setup mem resource */ + pci_set_region(hose->regions + 0, + CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE, + CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE, + CONFIG_SYS_PCIE_MEMSIZE, + PCI_REGION_MEM); + hose->region_count = 1; + pci_register_hose(hose); + + if (is_end_point(i)) { + ppc4xx_setup_pcie_endpoint(hose, i); + /* + * Reson for no scanning is endpoint can not generate + * upstream configuration accesses. + */ + } else { + ppc4xx_setup_pcie_rootpoint(hose, i); + env = getenv ("pciscandelay"); + if (env != NULL) { + delay = simple_strtoul(env, NULL, 10); + if (delay > 5) + printf("Warning, expect noticable delay before " + "PCIe scan due to 'pciscandelay' value!\n"); + mdelay(delay * 1000); + } + + /* + * Config access can only go down stream + */ + hose->last_busno = pci_hose_scan(hose); + bus = hose->last_busno + 1; + } + } +} + +static int validate_endpoint(struct pci_controller *hose) +{ + if (hose->cfg_data == (u8 *)CONFIG_SYS_PCIE0_CFGBASE) + return (is_end_point(0)); + else if (hose->cfg_data == (u8 *)CONFIG_SYS_PCIE1_CFGBASE) + return (is_end_point(1)); +#if CONFIG_SYS_PCIE_NR_PORTS > 2 + else if (hose->cfg_data == (u8 *)CONFIG_SYS_PCIE2_CFGBASE) + return (is_end_point(2)); +#endif + + return 0; +} + +static u8* pcie_get_base(struct pci_controller *hose, unsigned int devfn) +{ + u8 *base = (u8*)hose->cfg_data; + + /* use local configuration space for the first bus */ + if (PCI_BUS(devfn) == 0) { + if (hose->cfg_data == (u8*)CONFIG_SYS_PCIE0_CFGBASE) + base = (u8*)CONFIG_SYS_PCIE0_XCFGBASE; + if (hose->cfg_data == (u8*)CONFIG_SYS_PCIE1_CFGBASE) + base = (u8*)CONFIG_SYS_PCIE1_XCFGBASE; +#if CONFIG_SYS_PCIE_NR_PORTS > 2 + if (hose->cfg_data == (u8*)CONFIG_SYS_PCIE2_CFGBASE) + base = (u8*)CONFIG_SYS_PCIE2_XCFGBASE; +#endif + } + + return base; +} + +static void pcie_dmer_disable(void) +{ + mtdcr (DCRN_PEGPL_CFG(DCRN_PCIE0_BASE), + mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE0_BASE)) | GPL_DMER_MASK_DISA); + mtdcr (DCRN_PEGPL_CFG(DCRN_PCIE1_BASE), + mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE1_BASE)) | GPL_DMER_MASK_DISA); +#if CONFIG_SYS_PCIE_NR_PORTS > 2 + mtdcr (DCRN_PEGPL_CFG(DCRN_PCIE2_BASE), + mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE2_BASE)) | GPL_DMER_MASK_DISA); +#endif +} + +static void pcie_dmer_enable(void) +{ + mtdcr (DCRN_PEGPL_CFG (DCRN_PCIE0_BASE), + mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE0_BASE)) & ~GPL_DMER_MASK_DISA); + mtdcr (DCRN_PEGPL_CFG (DCRN_PCIE1_BASE), + mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE1_BASE)) & ~GPL_DMER_MASK_DISA); +#if CONFIG_SYS_PCIE_NR_PORTS > 2 + mtdcr (DCRN_PEGPL_CFG (DCRN_PCIE2_BASE), + mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE2_BASE)) & ~GPL_DMER_MASK_DISA); +#endif +} + +static int pcie_read_config(struct pci_controller *hose, unsigned int devfn, + int offset, int len, u32 *val) { + + u8 *address; + *val = 0; + + if (validate_endpoint(hose)) + return 0; /* No upstream config access */ + + /* + * Bus numbers are relative to hose->first_busno + */ + devfn -= PCI_BDF(hose->first_busno, 0, 0); + + /* + * NOTICE: configuration space ranges are currenlty mapped only for + * the first 16 buses, so such limit must be imposed. In case more + * buses are required the TLB settings in board/amcc/<board>/init.S + * need to be altered accordingly (one bus takes 1 MB of memory space). + */ + if (PCI_BUS(devfn) >= 16) + return 0; + + /* + * Only single device/single function is supported for the primary and + * secondary buses of the 440SPe host bridge. + */ + if ((!((PCI_FUNC(devfn) == 0) && (PCI_DEV(devfn) == 0))) && + ((PCI_BUS(devfn) == 0) || (PCI_BUS(devfn) == 1))) + return 0; + + address = pcie_get_base(hose, devfn); + offset += devfn << 4; + + /* + * Reading from configuration space of non-existing device can + * generate transaction errors. For the read duration we suppress + * assertion of machine check exceptions to avoid those. + */ + pcie_dmer_disable (); + + debug("%s: cfg_data=%08x offset=%08x\n", __func__, hose->cfg_data, offset); + switch (len) { + case 1: + *val = in_8(hose->cfg_data + offset); + break; + case 2: + *val = in_le16((u16 *)(hose->cfg_data + offset)); + break; + default: + *val = in_le32((u32*)(hose->cfg_data + offset)); + break; + } + + pcie_dmer_enable (); + + return 0; +} + +static int pcie_write_config(struct pci_controller *hose, unsigned int devfn, + int offset, int len, u32 val) { + + u8 *address; + + if (validate_endpoint(hose)) + return 0; /* No upstream config access */ + + /* + * Bus numbers are relative to hose->first_busno + */ + devfn -= PCI_BDF(hose->first_busno, 0, 0); + + /* + * Same constraints as in pcie_read_config(). + */ + if (PCI_BUS(devfn) >= 16) + return 0; + + if ((!((PCI_FUNC(devfn) == 0) && (PCI_DEV(devfn) == 0))) && + ((PCI_BUS(devfn) == 0) || (PCI_BUS(devfn) == 1))) + return 0; + + address = pcie_get_base(hose, devfn); + offset += devfn << 4; + + /* + * Suppress MCK exceptions, similar to pcie_read_config() + */ + pcie_dmer_disable (); + + switch (len) { + case 1: + out_8(hose->cfg_data + offset, val); + break; + case 2: + out_le16((u16 *)(hose->cfg_data + offset), val); + break; + default: + out_le32((u32 *)(hose->cfg_data + offset), val); + break; + } + + pcie_dmer_enable (); + + return 0; +} + +int pcie_read_config_byte(struct pci_controller *hose,pci_dev_t dev,int offset,u8 *val) +{ + u32 v; + int rv; + + rv = pcie_read_config(hose, dev, offset, 1, &v); + *val = (u8)v; + return rv; +} + +int pcie_read_config_word(struct pci_controller *hose,pci_dev_t dev,int offset,u16 *val) +{ + u32 v; + int rv; + + rv = pcie_read_config(hose, dev, offset, 2, &v); + *val = (u16)v; + return rv; +} + +int pcie_read_config_dword(struct pci_controller *hose,pci_dev_t dev,int offset,u32 *val) +{ + u32 v; + int rv; + + rv = pcie_read_config(hose, dev, offset, 3, &v); + *val = (u32)v; + return rv; +} + +int pcie_write_config_byte(struct pci_controller *hose,pci_dev_t dev,int offset,u8 val) +{ + return pcie_write_config(hose,(u32)dev,offset,1,val); +} + +int pcie_write_config_word(struct pci_controller *hose,pci_dev_t dev,int offset,u16 val) +{ + return pcie_write_config(hose,(u32)dev,offset,2,(u32 )val); +} + +int pcie_write_config_dword(struct pci_controller *hose,pci_dev_t dev,int offset,u32 val) +{ + return pcie_write_config(hose,(u32)dev,offset,3,(u32 )val); +} + +#if defined(CONFIG_440SPE) +static void ppc4xx_setup_utl(u32 port) { + + volatile void *utl_base = NULL; + + /* + * Map UTL registers + */ + switch (port) { + case 0: + mtdcr(DCRN_PEGPL_REGBAH(PCIE0), 0x0000000c); + mtdcr(DCRN_PEGPL_REGBAL(PCIE0), 0x20000000); + mtdcr(DCRN_PEGPL_REGMSK(PCIE0), 0x00007001); + mtdcr(DCRN_PEGPL_SPECIAL(PCIE0), 0x68782800); + break; + + case 1: + mtdcr(DCRN_PEGPL_REGBAH(PCIE1), 0x0000000c); + mtdcr(DCRN_PEGPL_REGBAL(PCIE1), 0x20001000); + mtdcr(DCRN_PEGPL_REGMSK(PCIE1), 0x00007001); + mtdcr(DCRN_PEGPL_SPECIAL(PCIE1), 0x68782800); + break; + + case 2: + mtdcr(DCRN_PEGPL_REGBAH(PCIE2), 0x0000000c); + mtdcr(DCRN_PEGPL_REGBAL(PCIE2), 0x20002000); + mtdcr(DCRN_PEGPL_REGMSK(PCIE2), 0x00007001); + mtdcr(DCRN_PEGPL_SPECIAL(PCIE2), 0x68782800); + break; + } + utl_base = (unsigned int *)(CONFIG_SYS_PCIE_BASE + 0x1000 * port); + + /* + * Set buffer allocations and then assert VRB and TXE. + */ + out_be32(utl_base + PEUTL_OUTTR, 0x08000000); + out_be32(utl_base + PEUTL_INTR, 0x02000000); + out_be32(utl_base + PEUTL_OPDBSZ, 0x10000000); + out_be32(utl_base + PEUTL_PBBSZ, 0x53000000); + out_be32(utl_base + PEUTL_IPHBSZ, 0x08000000); + out_be32(utl_base + PEUTL_IPDBSZ, 0x10000000); + out_be32(utl_base + PEUTL_RCIRQEN, 0x00f00000); + out_be32(utl_base + PEUTL_PCTL, 0x80800066); +} + +static int check_error(void) +{ + u32 valPE0, valPE1, valPE2; + int err = 0; + + /* SDR0_PEGPLLLCT1 reset */ + if (!(valPE0 = SDR_READ(PESDR0_PLLLCT1) & 0x01000000)) + printf("PCIE: SDR0_PEGPLLLCT1 reset error 0x%x\n", valPE0); + + valPE0 = SDR_READ(PESDR0_RCSSET); + valPE1 = SDR_READ(PESDR1_RCSSET); + valPE2 = SDR_READ(PESDR2_RCSSET); + + /* SDR0_PExRCSSET rstgu */ + if (!(valPE0 & 0x01000000) || + !(valPE1 & 0x01000000) || + !(valPE2 & 0x01000000)) { + printf("PCIE: SDR0_PExRCSSET rstgu error\n"); + err = -1; + } + + /* SDR0_PExRCSSET rstdl */ + if (!(valPE0 & 0x00010000) || + !(valPE1 & 0x00010000) || + !(valPE2 & 0x00010000)) { + printf("PCIE: SDR0_PExRCSSET rstdl error\n"); + err = -1; + } + + /* SDR0_PExRCSSET rstpyn */ + if ((valPE0 & 0x00001000) || + (valPE1 & 0x00001000) || + (valPE2 & 0x00001000)) { + printf("PCIE: SDR0_PExRCSSET rstpyn error\n"); + err = -1; + } + + /* SDR0_PExRCSSET hldplb */ + if ((valPE0 & 0x10000000) || + (valPE1 & 0x10000000) || + (valPE2 & 0x10000000)) { + printf("PCIE: SDR0_PExRCSSET hldplb error\n"); + err = -1; + } + + /* SDR0_PExRCSSET rdy */ + if ((valPE0 & 0x00100000) || + (valPE1 & 0x00100000) || + (valPE2 & 0x00100000)) { + printf("PCIE: SDR0_PExRCSSET rdy error\n"); + err = -1; + } + + /* SDR0_PExRCSSET shutdown */ + if ((valPE0 & 0x00000100) || + (valPE1 & 0x00000100) || + (valPE2 & 0x00000100)) { + printf("PCIE: SDR0_PExRCSSET shutdown error\n"); + err = -1; + } + return err; +} + +/* + * Initialize PCI Express core + */ +int ppc4xx_init_pcie(void) +{ + int time_out = 20; + + /* Set PLL clock receiver to LVPECL */ + SDR_WRITE(PESDR0_PLLLCT1, SDR_READ(PESDR0_PLLLCT1) | 1 << 28); + + if (check_error()) { + printf("ERROR: failed to set PCIe reference clock receiver --" + "PESDR0_PLLLCT1 = 0x%08x\n", SDR_READ(PESDR0_PLLLCT1)); + + return -1; + } + + /* Did resistance calibration work? */ + if (!(SDR_READ(PESDR0_PLLLCT2) & 0x10000)) { + printf("ERROR: PCIe resistance calibration failed --" + "PESDR0_PLLLCT2 = 0x%08x\n", SDR_READ(PESDR0_PLLLCT2)); + + return -1; + } + /* De-assert reset of PCIe PLL, wait for lock */ + SDR_WRITE(PESDR0_PLLLCT1, SDR_READ(PESDR0_PLLLCT1) & ~(1 << 24)); + udelay(300); /* 300 uS is maximum time lock should take */ + + while (time_out) { + if (!(SDR_READ(PESDR0_PLLLCT3) & 0x10000000)) { + time_out--; + udelay(20); /* Wait 20 uS more if needed */ + } else + break; + } + if (!time_out) { + printf("ERROR: PCIe PLL VCO output not locked to ref clock --" + "PESDR0_PLLLCTS=0x%08x\n", SDR_READ(PESDR0_PLLLCT3)); + + return -1; + } + return 0; +} +#endif + +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) +static void ppc4xx_setup_utl(u32 port) +{ + volatile void *utl_base = NULL; + + /* + * Map UTL registers at 0x0801_n000 (4K 0xfff mask) PEGPLn_REGMSK + */ + switch (port) { + case 0: + mtdcr(DCRN_PEGPL_REGBAH(PCIE0), U64_TO_U32_HIGH(CONFIG_SYS_PCIE0_UTLBASE)); + mtdcr(DCRN_PEGPL_REGBAL(PCIE0), U64_TO_U32_LOW(CONFIG_SYS_PCIE0_UTLBASE)); + mtdcr(DCRN_PEGPL_REGMSK(PCIE0), 0x00007001); /* BAM 11100000=4KB */ + mtdcr(DCRN_PEGPL_SPECIAL(PCIE0), 0); + break; + + case 1: + mtdcr(DCRN_PEGPL_REGBAH(PCIE1), U64_TO_U32_HIGH(CONFIG_SYS_PCIE0_UTLBASE)); + mtdcr(DCRN_PEGPL_REGBAL(PCIE1), U64_TO_U32_LOW(CONFIG_SYS_PCIE0_UTLBASE) + + 0x1000); + mtdcr(DCRN_PEGPL_REGMSK(PCIE1), 0x00007001); /* BAM 11100000=4KB */ + mtdcr(DCRN_PEGPL_SPECIAL(PCIE1), 0); + break; + } + utl_base = (unsigned int *)(CONFIG_SYS_PCIE_BASE + 0x1000 * port); + + /* + * Set buffer allocations and then assert VRB and TXE. + */ + out_be32(utl_base + PEUTL_PBCTL, 0x0800000c); /* PLBME, CRRE */ + out_be32(utl_base + PEUTL_OUTTR, 0x08000000); + out_be32(utl_base + PEUTL_INTR, 0x02000000); + out_be32(utl_base + PEUTL_OPDBSZ, 0x04000000); /* OPD = 512 Bytes */ + out_be32(utl_base + PEUTL_PBBSZ, 0x00000000); /* Max 512 Bytes */ + out_be32(utl_base + PEUTL_IPHBSZ, 0x02000000); + out_be32(utl_base + PEUTL_IPDBSZ, 0x04000000); /* IPD = 512 Bytes */ + out_be32(utl_base + PEUTL_RCIRQEN, 0x00f00000); + out_be32(utl_base + PEUTL_PCTL, 0x80800066); /* VRB,TXE,timeout=default */ +} + +/* + * TODO: double check PCI express SDR based on the latest user manual + * Some registers specified here no longer exist.. has to be + * updated based on the final EAS spec. + */ +static int check_error(void) +{ + u32 valPE0, valPE1; + int err = 0; + + valPE0 = SDR_READ(SDRN_PESDR_RCSSET(0)); + valPE1 = SDR_READ(SDRN_PESDR_RCSSET(1)); + + /* SDR0_PExRCSSET rstgu */ + if (!(valPE0 & PESDRx_RCSSET_RSTGU) || !(valPE1 & PESDRx_RCSSET_RSTGU)) { + printf("PCIE: SDR0_PExRCSSET rstgu error\n"); + err = -1; + } + + /* SDR0_PExRCSSET rstdl */ + if (!(valPE0 & PESDRx_RCSSET_RSTDL) || !(valPE1 & PESDRx_RCSSET_RSTDL)) { + printf("PCIE: SDR0_PExRCSSET rstdl error\n"); + err = -1; + } + + /* SDR0_PExRCSSET rstpyn */ + if ((valPE0 & PESDRx_RCSSET_RSTPYN) || (valPE1 & PESDRx_RCSSET_RSTPYN)) { + printf("PCIE: SDR0_PExRCSSET rstpyn error\n"); + err = -1; + } + + /* SDR0_PExRCSSET hldplb */ + if ((valPE0 & PESDRx_RCSSET_HLDPLB) || (valPE1 & PESDRx_RCSSET_HLDPLB)) { + printf("PCIE: SDR0_PExRCSSET hldplb error\n"); + err = -1; + } + + /* SDR0_PExRCSSET rdy */ + if ((valPE0 & PESDRx_RCSSET_RDY) || (valPE1 & PESDRx_RCSSET_RDY)) { + printf("PCIE: SDR0_PExRCSSET rdy error\n"); + err = -1; + } + + return err; +} + +/* + * Initialize PCI Express core as described in User Manual + * TODO: double check PE SDR PLL Register with the updated user manual. + */ +int ppc4xx_init_pcie(void) +{ + if (check_error()) + return -1; + + return 0; +} +#endif /* CONFIG_460EX */ + +#if defined(CONFIG_405EX) +static void ppc4xx_setup_utl(u32 port) +{ + u32 utl_base; + + /* + * Map UTL registers at 0xef4f_n000 (4K 0xfff mask) PEGPLn_REGMSK + */ + switch (port) { + case 0: + mtdcr(DCRN_PEGPL_REGBAH(PCIE0), 0x00000000); + mtdcr(DCRN_PEGPL_REGBAL(PCIE0), CONFIG_SYS_PCIE0_UTLBASE); + mtdcr(DCRN_PEGPL_REGMSK(PCIE0), 0x00007001); /* 4k region, valid */ + mtdcr(DCRN_PEGPL_SPECIAL(PCIE0), 0); + break; + + case 1: + mtdcr(DCRN_PEGPL_REGBAH(PCIE1), 0x00000000); + mtdcr(DCRN_PEGPL_REGBAL(PCIE1), CONFIG_SYS_PCIE1_UTLBASE); + mtdcr(DCRN_PEGPL_REGMSK(PCIE1), 0x00007001); /* 4k region, valid */ + mtdcr(DCRN_PEGPL_SPECIAL(PCIE1), 0); + + break; + } + utl_base = (port==0) ? CONFIG_SYS_PCIE0_UTLBASE : CONFIG_SYS_PCIE1_UTLBASE; + + /* + * Set buffer allocations and then assert VRB and TXE. + */ + out_be32((u32 *)(utl_base + PEUTL_OUTTR), 0x02000000); + out_be32((u32 *)(utl_base + PEUTL_INTR), 0x02000000); + out_be32((u32 *)(utl_base + PEUTL_OPDBSZ), 0x04000000); + out_be32((u32 *)(utl_base + PEUTL_PBBSZ), 0x21000000); + out_be32((u32 *)(utl_base + PEUTL_IPHBSZ), 0x02000000); + out_be32((u32 *)(utl_base + PEUTL_IPDBSZ), 0x04000000); + out_be32((u32 *)(utl_base + PEUTL_RCIRQEN), 0x00f00000); + out_be32((u32 *)(utl_base + PEUTL_PCTL), 0x80800066); + + out_be32((u32 *)(utl_base + PEUTL_PBCTL), 0x0800000c); + out_be32((u32 *)(utl_base + PEUTL_RCSTA), + in_be32((u32 *)(utl_base + PEUTL_RCSTA)) | 0x000040000); +} + +int ppc4xx_init_pcie(void) +{ + /* + * Nothing to do on 405EX + */ + return 0; +} +#endif /* CONFIG_405EX */ + +/* + * Board-specific pcie initialization + * Platform code can reimplement ppc4xx_init_pcie_port_hw() if needed + */ + +/* + * Initialize various parts of the PCI Express core for our port: + * + * - Set as a root port and enable max width + * (PXIE0 -> X8, PCIE1 and PCIE2 -> X4). + * - Set up UTL configuration. + * - Increase SERDES drive strength to levels suggested by AMCC. + * - De-assert RSTPYN, RSTDL and RSTGU. + * + * NOTICE for 440SPE revB chip: PESDRn_UTLSET2 is not set - we leave it + * with default setting 0x11310000. The register has new fields, + * PESDRn_UTLSET2[LKINE] in particular: clearing it leads to PCIE core + * hang. + */ +#if defined(CONFIG_440SPE) +int __ppc4xx_init_pcie_port_hw(int port, int rootport) +{ + u32 val = 1 << 24; + u32 utlset1; + + if (rootport) { + val = PTYPE_ROOT_PORT << 20; + utlset1 = 0x21222222; + } else { + val = PTYPE_LEGACY_ENDPOINT << 20; + utlset1 = 0x20222222; + } + + if (port == 0) + val |= LNKW_X8 << 12; + else + val |= LNKW_X4 << 12; + + SDR_WRITE(SDRN_PESDR_DLPSET(port), val); + SDR_WRITE(SDRN_PESDR_UTLSET1(port), utlset1); + if (!ppc440spe_revB()) + SDR_WRITE(SDRN_PESDR_UTLSET2(port), 0x11000000); + SDR_WRITE(SDRN_PESDR_HSSL0SET1(port), 0x35000000); + SDR_WRITE(SDRN_PESDR_HSSL1SET1(port), 0x35000000); + SDR_WRITE(SDRN_PESDR_HSSL2SET1(port), 0x35000000); + SDR_WRITE(SDRN_PESDR_HSSL3SET1(port), 0x35000000); + if (port == 0) { + SDR_WRITE(PESDR0_HSSL4SET1, 0x35000000); + SDR_WRITE(PESDR0_HSSL5SET1, 0x35000000); + SDR_WRITE(PESDR0_HSSL6SET1, 0x35000000); + SDR_WRITE(PESDR0_HSSL7SET1, 0x35000000); + } + SDR_WRITE(SDRN_PESDR_RCSSET(port), (SDR_READ(SDRN_PESDR_RCSSET(port)) & + ~(1 << 24 | 1 << 16)) | 1 << 12); + + return 0; +} +#endif /* CONFIG_440SPE */ + +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) +int __ppc4xx_init_pcie_port_hw(int port, int rootport) +{ + u32 val; + u32 utlset1; + + if (rootport) + val = PTYPE_ROOT_PORT << 20; + else + val = PTYPE_LEGACY_ENDPOINT << 20; + + if (port == 0) { + val |= LNKW_X1 << 12; + utlset1 = 0x20000000; + } else { + val |= LNKW_X4 << 12; + utlset1 = 0x20101101; + } + + SDR_WRITE(SDRN_PESDR_DLPSET(port), val); + SDR_WRITE(SDRN_PESDR_UTLSET1(port), utlset1); + SDR_WRITE(SDRN_PESDR_UTLSET2(port), 0x01210000); + + switch (port) { + case 0: + SDR_WRITE(PESDR0_L0CDRCTL, 0x00003230); + SDR_WRITE(PESDR0_L0DRV, 0x00000130); + SDR_WRITE(PESDR0_L0CLK, 0x00000006); + + SDR_WRITE(PESDR0_PHY_CTL_RST,0x10000000); + break; + + case 1: + SDR_WRITE(PESDR1_L0CDRCTL, 0x00003230); + SDR_WRITE(PESDR1_L1CDRCTL, 0x00003230); + SDR_WRITE(PESDR1_L2CDRCTL, 0x00003230); + SDR_WRITE(PESDR1_L3CDRCTL, 0x00003230); + SDR_WRITE(PESDR1_L0DRV, 0x00000130); + SDR_WRITE(PESDR1_L1DRV, 0x00000130); + SDR_WRITE(PESDR1_L2DRV, 0x00000130); + SDR_WRITE(PESDR1_L3DRV, 0x00000130); + SDR_WRITE(PESDR1_L0CLK, 0x00000006); + SDR_WRITE(PESDR1_L1CLK, 0x00000006); + SDR_WRITE(PESDR1_L2CLK, 0x00000006); + SDR_WRITE(PESDR1_L3CLK, 0x00000006); + + SDR_WRITE(PESDR1_PHY_CTL_RST,0x10000000); + break; + } + + SDR_WRITE(SDRN_PESDR_RCSSET(port), SDR_READ(SDRN_PESDR_RCSSET(port)) | + (PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTPYN)); + + /* Poll for PHY reset */ + switch (port) { + case 0: + while (!(SDR_READ(PESDR0_RSTSTA) & 0x1)) + udelay(10); + break; + case 1: + while (!(SDR_READ(PESDR1_RSTSTA) & 0x1)) + udelay(10); + break; + } + + SDR_WRITE(SDRN_PESDR_RCSSET(port), + (SDR_READ(SDRN_PESDR_RCSSET(port)) & + ~(PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTDL)) | + PESDRx_RCSSET_RSTPYN); + + return 0; +} +#endif /* CONFIG_440SPE */ + +#if defined(CONFIG_405EX) +int __ppc4xx_init_pcie_port_hw(int port, int rootport) +{ + u32 val; + + if (rootport) + val = 0x00401000; + else + val = 0x00101000; + + SDR_WRITE(SDRN_PESDR_DLPSET(port), val); + SDR_WRITE(SDRN_PESDR_UTLSET1(port), 0x00000000); + SDR_WRITE(SDRN_PESDR_UTLSET2(port), 0x01010000); + SDR_WRITE(SDRN_PESDR_PHYSET1(port), 0x720F0000); + SDR_WRITE(SDRN_PESDR_PHYSET2(port), 0x70600003); + + /* Assert the PE0_PHY reset */ + SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x01010000); + udelay(1000); + + /* deassert the PE0_hotreset */ + if (is_end_point(port)) + SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x01111000); + else + SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x01101000); + + /* poll for phy !reset */ + while (!(SDR_READ(SDRN_PESDR_PHYSTA(port)) & 0x00001000)) + ; + + /* deassert the PE0_gpl_utl_reset */ + SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x00101000); + + if (port == 0) + mtdcr(DCRN_PEGPL_CFG(PCIE0), 0x10000000); /* guarded on */ + else + mtdcr(DCRN_PEGPL_CFG(PCIE1), 0x10000000); /* guarded on */ + + return 0; +} +#endif /* CONFIG_405EX */ + +int ppc4xx_init_pcie_port_hw(int port, int rootport) +__attribute__((weak, alias("__ppc4xx_init_pcie_port_hw"))); + +/* + * We map PCI Express configuration access into the 512MB regions + * + * NOTICE: revB is very strict about PLB real addressess and ranges to + * be mapped for config space; it seems to only work with d_nnnn_nnnn + * range (hangs the core upon config transaction attempts when set + * otherwise) while revA uses c_nnnn_nnnn. + * + * For 440SPe revA: + * PCIE0: 0xc_4000_0000 + * PCIE1: 0xc_8000_0000 + * PCIE2: 0xc_c000_0000 + * + * For 440SPe revB: + * PCIE0: 0xd_0000_0000 + * PCIE1: 0xd_2000_0000 + * PCIE2: 0xd_4000_0000 + * + * For 405EX: + * PCIE0: 0xa000_0000 + * PCIE1: 0xc000_0000 + * + * For 460EX/GT: + * PCIE0: 0xd_0000_0000 + * PCIE1: 0xd_2000_0000 + */ +static inline u64 ppc4xx_get_cfgaddr(int port) +{ +#if defined(CONFIG_405EX) + if (port == 0) + return (u64)CONFIG_SYS_PCIE0_CFGBASE; + else + return (u64)CONFIG_SYS_PCIE1_CFGBASE; +#endif +#if defined(CONFIG_440SPE) + if (ppc440spe_revB()) { + switch (port) { + default: /* to satisfy compiler */ + case 0: + return 0x0000000d00000000ULL; + case 1: + return 0x0000000d20000000ULL; + case 2: + return 0x0000000d40000000ULL; + } + } else { + switch (port) { + default: /* to satisfy compiler */ + case 0: + return 0x0000000c40000000ULL; + case 1: + return 0x0000000c80000000ULL; + case 2: + return 0x0000000cc0000000ULL; + } + } +#endif +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) + if (port == 0) + return 0x0000000d00000000ULL; + else + return 0x0000000d20000000ULL; +#endif +} + +/* + * 4xx boards as endpoint and root point setup + * and + * testing inbound and out bound windows + * + * 4xx boards can be plugged into another 4xx boards or you can get PCI-E + * cable which can be used to setup loop back from one port to another port. + * Please rememeber that unless there is a endpoint plugged in to root port it + * will not initialize. It is the same in case of endpoint , unless there is + * root port attached it will not initialize. + * + * In this release of software all the PCI-E ports are configured as either + * endpoint or rootpoint.In future we will have support for selective ports + * setup as endpoint and root point in single board. + * + * Once your board came up as root point , you can verify by reading + * /proc/bus/pci/devices. Where you can see the configuration registers + * of endpoint device attached to the port. + * + * Enpoint cofiguration can be verified by connecting 4xx board to any + * host or another 4xx board. Then try to scan the device. In case of + * linux use "lspci" or appripriate os command. + * + * How do I verify the inbound and out bound windows ? (4xx to 4xx) + * in this configuration inbound and outbound windows are setup to access + * sram memroy area. SRAM is at 0x4 0000 0000 , on PLB bus. This address + * is mapped at 0x90000000. From u-boot prompt write data 0xb000 0000, + * This is waere your POM(PLB out bound memory window) mapped. then + * read the data from other 4xx board's u-boot prompt at address + * 0x9000 0000(SRAM). Data should match. + * In case of inbound , write data to u-boot command prompt at 0xb000 0000 + * which is mapped to 0x4 0000 0000. Now on rootpoint yucca u-boot prompt check + * data at 0x9000 0000(SRAM).Data should match. + */ +int ppc4xx_init_pcie_port(int port, int rootport) +{ + static int core_init; + volatile u32 val = 0; + int attempts; + u64 addr; + u32 low, high; + + if (!core_init) { + if (ppc4xx_init_pcie()) + return -1; + ++core_init; + } + + /* + * Initialize various parts of the PCI Express core for our port + */ + ppc4xx_init_pcie_port_hw(port, rootport); + + /* + * Notice: the following delay has critical impact on device + * initialization - if too short (<50ms) the link doesn't get up. + */ + mdelay(100); + + val = SDR_READ(SDRN_PESDR_RCSSTS(port)); + if (val & (1 << 20)) { + printf("PCIE%d: PGRST failed %08x\n", port, val); + return -1; + } + + /* + * Verify link is up + */ + val = SDR_READ(SDRN_PESDR_LOOP(port)); + if (!(val & 0x00001000)) { + printf("PCIE%d: link is not up.\n", port); + return -ENODEV; + } + + /* + * Setup UTL registers - but only on revA! + * We use default settings for revB chip. + */ + if (!ppc440spe_revB()) + ppc4xx_setup_utl(port); + + /* + * We map PCI Express configuration access into the 512MB regions + */ + addr = ppc4xx_get_cfgaddr(port); + low = U64_TO_U32_LOW(addr); + high = U64_TO_U32_HIGH(addr); + + switch (port) { + case 0: + mtdcr(DCRN_PEGPL_CFGBAH(PCIE0), high); + mtdcr(DCRN_PEGPL_CFGBAL(PCIE0), low); + mtdcr(DCRN_PEGPL_CFGMSK(PCIE0), 0xe0000001); /* 512MB region, valid */ + break; + case 1: + mtdcr(DCRN_PEGPL_CFGBAH(PCIE1), high); + mtdcr(DCRN_PEGPL_CFGBAL(PCIE1), low); + mtdcr(DCRN_PEGPL_CFGMSK(PCIE1), 0xe0000001); /* 512MB region, valid */ + break; +#if CONFIG_SYS_PCIE_NR_PORTS > 2 + case 2: + mtdcr(DCRN_PEGPL_CFGBAH(PCIE2), high); + mtdcr(DCRN_PEGPL_CFGBAL(PCIE2), low); + mtdcr(DCRN_PEGPL_CFGMSK(PCIE2), 0xe0000001); /* 512MB region, valid */ + break; +#endif + } + + /* + * Check for VC0 active and assert RDY. + */ + attempts = 10; + while(!(SDR_READ(SDRN_PESDR_RCSSTS(port)) & (1 << 16))) { + if (!(attempts--)) { + printf("PCIE%d: VC0 not active\n", port); + return -1; + } + mdelay(1000); + } + SDR_WRITE(SDRN_PESDR_RCSSET(port), + SDR_READ(SDRN_PESDR_RCSSET(port)) | 1 << 20); + mdelay(100); + + return 0; +} + +int ppc4xx_init_pcie_rootport(int port) +{ + return ppc4xx_init_pcie_port(port, 1); +} + +int ppc4xx_init_pcie_endport(int port) +{ + return ppc4xx_init_pcie_port(port, 0); +} + +void ppc4xx_setup_pcie_rootpoint(struct pci_controller *hose, int port) +{ + volatile void *mbase = NULL; + volatile void *rmbase = NULL; + + pci_set_ops(hose, + pcie_read_config_byte, + pcie_read_config_word, + pcie_read_config_dword, + pcie_write_config_byte, + pcie_write_config_word, + pcie_write_config_dword); + + switch (port) { + case 0: + mbase = (u32 *)CONFIG_SYS_PCIE0_XCFGBASE; + rmbase = (u32 *)CONFIG_SYS_PCIE0_CFGBASE; + hose->cfg_data = (u8 *)CONFIG_SYS_PCIE0_CFGBASE; + break; + case 1: + mbase = (u32 *)CONFIG_SYS_PCIE1_XCFGBASE; + rmbase = (u32 *)CONFIG_SYS_PCIE1_CFGBASE; + hose->cfg_data = (u8 *)CONFIG_SYS_PCIE1_CFGBASE; + break; +#if CONFIG_SYS_PCIE_NR_PORTS > 2 + case 2: + mbase = (u32 *)CONFIG_SYS_PCIE2_XCFGBASE; + rmbase = (u32 *)CONFIG_SYS_PCIE2_CFGBASE; + hose->cfg_data = (u8 *)CONFIG_SYS_PCIE2_CFGBASE; + break; +#endif + } + + /* + * Set bus numbers on our root port + */ + out_8((u8 *)mbase + PCI_PRIMARY_BUS, 0); + out_8((u8 *)mbase + PCI_SECONDARY_BUS, 1); + out_8((u8 *)mbase + PCI_SUBORDINATE_BUS, 1); + + /* + * Set up outbound translation to hose->mem_space from PLB + * addresses at an offset of 0xd_0000_0000. We set the low + * bits of the mask to 11 to turn off splitting into 8 + * subregions and to enable the outbound translation. + */ + out_le32(mbase + PECFG_POM0LAH, 0x00000000); + out_le32(mbase + PECFG_POM0LAL, CONFIG_SYS_PCIE_MEMBASE + + port * CONFIG_SYS_PCIE_MEMSIZE); + debug("PECFG_POM0LA=%08x.%08x\n", in_le32(mbase + PECFG_POM0LAH), + in_le32(mbase + PECFG_POM0LAL)); + + switch (port) { + case 0: + mtdcr(DCRN_PEGPL_OMR1BAH(PCIE0), CONFIG_SYS_PCIE_ADDR_HIGH); + mtdcr(DCRN_PEGPL_OMR1BAL(PCIE0), CONFIG_SYS_PCIE_MEMBASE + + port * CONFIG_SYS_PCIE_MEMSIZE); + mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE0), 0x7fffffff); + mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE0), + ~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3); + debug("0:PEGPL_OMR1BA=%08x.%08x MSK=%08x.%08x\n", + mfdcr(DCRN_PEGPL_OMR1BAH(PCIE0)), + mfdcr(DCRN_PEGPL_OMR1BAL(PCIE0)), + mfdcr(DCRN_PEGPL_OMR1MSKH(PCIE0)), + mfdcr(DCRN_PEGPL_OMR1MSKL(PCIE0))); + break; + case 1: + mtdcr(DCRN_PEGPL_OMR1BAH(PCIE1), CONFIG_SYS_PCIE_ADDR_HIGH); + mtdcr(DCRN_PEGPL_OMR1BAL(PCIE1), CONFIG_SYS_PCIE_MEMBASE + + port * CONFIG_SYS_PCIE_MEMSIZE); + mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE1), 0x7fffffff); + mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE1), + ~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3); + debug("1:PEGPL_OMR1BA=%08x.%08x MSK=%08x.%08x\n", + mfdcr(DCRN_PEGPL_OMR1BAH(PCIE1)), + mfdcr(DCRN_PEGPL_OMR1BAL(PCIE1)), + mfdcr(DCRN_PEGPL_OMR1MSKH(PCIE1)), + mfdcr(DCRN_PEGPL_OMR1MSKL(PCIE1))); + break; +#if CONFIG_SYS_PCIE_NR_PORTS > 2 + case 2: + mtdcr(DCRN_PEGPL_OMR1BAH(PCIE2), CONFIG_SYS_PCIE_ADDR_HIGH); + mtdcr(DCRN_PEGPL_OMR1BAL(PCIE2), CONFIG_SYS_PCIE_MEMBASE + + port * CONFIG_SYS_PCIE_MEMSIZE); + mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE2), 0x7fffffff); + mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE2), + ~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3); + debug("2:PEGPL_OMR1BA=%08x.%08x MSK=%08x.%08x\n", + mfdcr(DCRN_PEGPL_OMR1BAH(PCIE2)), + mfdcr(DCRN_PEGPL_OMR1BAL(PCIE2)), + mfdcr(DCRN_PEGPL_OMR1MSKH(PCIE2)), + mfdcr(DCRN_PEGPL_OMR1MSKL(PCIE2))); + break; +#endif + } + + /* Set up 4GB inbound memory window at 0 */ + out_le32(mbase + PCI_BASE_ADDRESS_0, 0); + out_le32(mbase + PCI_BASE_ADDRESS_1, 0); + out_le32(mbase + PECFG_BAR0HMPA, 0x7ffffff); + out_le32(mbase + PECFG_BAR0LMPA, 0); + + out_le32(mbase + PECFG_PIM01SAH, 0xffff0000); + out_le32(mbase + PECFG_PIM01SAL, 0x00000000); + out_le32(mbase + PECFG_PIM0LAL, 0); + out_le32(mbase + PECFG_PIM0LAH, 0); + out_le32(mbase + PECFG_PIM1LAL, 0x00000000); + out_le32(mbase + PECFG_PIM1LAH, 0x00000004); + out_le32(mbase + PECFG_PIMEN, 0x1); + + /* Enable I/O, Mem, and Busmaster cycles */ + out_le16((u16 *)(mbase + PCI_COMMAND), + in_le16((u16 *)(mbase + PCI_COMMAND)) | + PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); + + /* Set Device and Vendor Id */ + out_le16(mbase + 0x200, 0xaaa0 + port); + out_le16(mbase + 0x202, 0xbed0 + port); + + /* Set Class Code to PCI-PCI bridge and Revision Id to 1 */ + out_le32(mbase + 0x208, 0x06040001); + + printf("PCIE%d: successfully set as root-complex\n", port); +} + +int ppc4xx_setup_pcie_endpoint(struct pci_controller *hose, int port) +{ + volatile void *mbase = NULL; + int attempts = 0; + + pci_set_ops(hose, + pcie_read_config_byte, + pcie_read_config_word, + pcie_read_config_dword, + pcie_write_config_byte, + pcie_write_config_word, + pcie_write_config_dword); + + switch (port) { + case 0: + mbase = (u32 *)CONFIG_SYS_PCIE0_XCFGBASE; + hose->cfg_data = (u8 *)CONFIG_SYS_PCIE0_CFGBASE; + break; + case 1: + mbase = (u32 *)CONFIG_SYS_PCIE1_XCFGBASE; + hose->cfg_data = (u8 *)CONFIG_SYS_PCIE1_CFGBASE; + break; +#if defined(CONFIG_SYS_PCIE2_CFGBASE) + case 2: + mbase = (u32 *)CONFIG_SYS_PCIE2_XCFGBASE; + hose->cfg_data = (u8 *)CONFIG_SYS_PCIE2_CFGBASE; + break; +#endif + } + + /* + * Set up outbound translation to hose->mem_space from PLB + * addresses at an offset of 0xd_0000_0000. We set the low + * bits of the mask to 11 to turn off splitting into 8 + * subregions and to enable the outbound translation. + */ + out_le32(mbase + PECFG_POM0LAH, 0x00001ff8); + out_le32(mbase + PECFG_POM0LAL, 0x00001000); + + switch (port) { + case 0: + mtdcr(DCRN_PEGPL_OMR1BAH(PCIE0), CONFIG_SYS_PCIE_ADDR_HIGH); + mtdcr(DCRN_PEGPL_OMR1BAL(PCIE0), CONFIG_SYS_PCIE_MEMBASE + + port * CONFIG_SYS_PCIE_MEMSIZE); + mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE0), 0x7fffffff); + mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE0), + ~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3); + break; + case 1: + mtdcr(DCRN_PEGPL_OMR1BAH(PCIE1), CONFIG_SYS_PCIE_ADDR_HIGH); + mtdcr(DCRN_PEGPL_OMR1BAL(PCIE1), CONFIG_SYS_PCIE_MEMBASE + + port * CONFIG_SYS_PCIE_MEMSIZE); + mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE1), 0x7fffffff); + mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE1), + ~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3); + break; +#if CONFIG_SYS_PCIE_NR_PORTS > 2 + case 2: + mtdcr(DCRN_PEGPL_OMR1BAH(PCIE2), CONFIG_SYS_PCIE_ADDR_HIGH); + mtdcr(DCRN_PEGPL_OMR1BAL(PCIE2), CONFIG_SYS_PCIE_MEMBASE + + port * CONFIG_SYS_PCIE_MEMSIZE); + mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE2), 0x7fffffff); + mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE2), + ~(CONFIG_SYS_PCIE_MEMSIZE - 1) | 3); + break; +#endif + } + + /* Set up 64MB inbound memory window at 0 */ + out_le32(mbase + PCI_BASE_ADDRESS_0, 0); + out_le32(mbase + PCI_BASE_ADDRESS_1, 0); + + out_le32(mbase + PECFG_PIM01SAH, 0xffffffff); + out_le32(mbase + PECFG_PIM01SAL, 0xfc000000); + + /* Setup BAR0 */ + out_le32(mbase + PECFG_BAR0HMPA, 0x7fffffff); + out_le32(mbase + PECFG_BAR0LMPA, 0xfc000000 | PCI_BASE_ADDRESS_MEM_TYPE_64); + + /* Disable BAR1 & BAR2 */ + out_le32(mbase + PECFG_BAR1MPA, 0); + out_le32(mbase + PECFG_BAR2HMPA, 0); + out_le32(mbase + PECFG_BAR2LMPA, 0); + + out_le32(mbase + PECFG_PIM0LAL, U64_TO_U32_LOW(CONFIG_SYS_PCIE_INBOUND_BASE)); + out_le32(mbase + PECFG_PIM0LAH, U64_TO_U32_HIGH(CONFIG_SYS_PCIE_INBOUND_BASE)); + out_le32(mbase + PECFG_PIMEN, 0x1); + + /* Enable I/O, Mem, and Busmaster cycles */ + out_le16((u16 *)(mbase + PCI_COMMAND), + in_le16((u16 *)(mbase + PCI_COMMAND)) | + PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); + out_le16(mbase + 0x200, 0xcaad); /* Setting vendor ID */ + out_le16(mbase + 0x202, 0xfeed); /* Setting device ID */ + + /* Set Class Code to Processor/PPC */ + out_le32(mbase + 0x208, 0x0b200001); + + attempts = 10; + while(!(SDR_READ(SDRN_PESDR_RCSSTS(port)) & (1 << 8))) { + if (!(attempts--)) { + printf("PCIE%d: BME not active\n", port); + return -1; + } + mdelay(1000); + } + + printf("PCIE%d: successfully set as endpoint\n", port); + + return 0; +} +#endif /* CONFIG_440SPE && CONFIG_PCI */ diff --git a/arch/ppc/cpu/ppc4xx/4xx_uart.c b/arch/ppc/cpu/ppc4xx/4xx_uart.c new file mode 100644 index 0000000..8de6542 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/4xx_uart.c @@ -0,0 +1,878 @@ +/* + * (C) Copyright 2000-2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * This source code is dual-licensed. You may use it under the terms of the + * GNU General Public License version 2, or under the license below. + * + * This source code has been made available to you by IBM on an AS-IS + * basis. Anyone receiving this source is licensed under IBM + * copyrights to use it in any way he or she deems fit, including + * copying it, modifying it, compiling it, and redistributing it either + * with or without modifications. No license under IBM patents or + * patent applications is to be implied by the copyright license. + * + * Any user of this software should understand that IBM cannot provide + * technical support for this software and will not be responsible for + * any consequences resulting from the use of this software. + * + * Any person who transfers this source code or any derivative work + * must include the IBM copyright notice, this paragraph, and the + * preceding two paragraphs in the transferred software. + * + * COPYRIGHT I B M CORPORATION 1995 + * LICENSED MATERIAL - PROGRAM PROPERTY OF I B M + */ + +#include <common.h> +#include <commproc.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <watchdog.h> +#include <ppc4xx.h> + +#ifdef CONFIG_SERIAL_MULTI +#include <serial.h> +#endif + +#ifdef CONFIG_SERIAL_SOFTWARE_FIFO +#include <malloc.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \ + defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \ + defined(CONFIG_405EX) || defined(CONFIG_440) + +#if defined(CONFIG_440) +#if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) +#define UART0_BASE (CONFIG_SYS_PERIPHERAL_BASE + 0x00000300) +#define UART1_BASE (CONFIG_SYS_PERIPHERAL_BASE + 0x00000400) +#else +#define UART0_BASE (CONFIG_SYS_PERIPHERAL_BASE + 0x00000200) +#define UART1_BASE (CONFIG_SYS_PERIPHERAL_BASE + 0x00000300) +#endif + +#if defined(CONFIG_440SP) || defined(CONFIG_440SPE) +#define UART2_BASE (CONFIG_SYS_PERIPHERAL_BASE + 0x00000600) +#endif + +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) +#define UART2_BASE (CONFIG_SYS_PERIPHERAL_BASE + 0x00000500) +#define UART3_BASE (CONFIG_SYS_PERIPHERAL_BASE + 0x00000600) +#endif + +#if defined(CONFIG_440GP) +#define CR0_MASK 0x3fff0000 +#define CR0_EXTCLK_ENA 0x00600000 +#define CR0_UDIV_POS 16 +#define UDIV_SUBTRACT 1 +#define UART0_SDR CPC0_CR0 +#define MFREG(a, d) d = mfdcr(a) +#define MTREG(a, d) mtdcr(a, d) +#else /* #if defined(CONFIG_440GP) */ +/* all other 440 PPC's access clock divider via sdr register */ +#define CR0_MASK 0xdfffffff +#define CR0_EXTCLK_ENA 0x00800000 +#define CR0_UDIV_POS 0 +#define UDIV_SUBTRACT 0 +#define UART0_SDR SDR0_UART0 +#define UART1_SDR SDR0_UART1 +#if defined(CONFIG_440EP) || defined(CONFIG_440EPX) || \ + defined(CONFIG_440GR) || defined(CONFIG_440GRX) || \ + defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) +#define UART2_SDR SDR0_UART2 +#endif +#if defined(CONFIG_440EP) || defined(CONFIG_440EPX) || \ + defined(CONFIG_440GR) || defined(CONFIG_440GRX) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) +#define UART3_SDR SDR0_UART3 +#endif +#define MFREG(a, d) mfsdr(a, d) +#define MTREG(a, d) mtsdr(a, d) +#endif /* #if defined(CONFIG_440GP) */ +#elif defined(CONFIG_405EP) || defined(CONFIG_405EZ) +#define UART0_BASE 0xef600300 +#define UART1_BASE 0xef600400 +#define UCR0_MASK 0x0000007f +#define UCR1_MASK 0x00007f00 +#define UCR0_UDIV_POS 0 +#define UCR1_UDIV_POS 8 +#define UDIV_MAX 127 +#elif defined(CONFIG_405EX) +#define UART0_BASE 0xef600200 +#define UART1_BASE 0xef600300 +#define CR0_MASK 0x000000ff +#define CR0_EXTCLK_ENA 0x00800000 +#define CR0_UDIV_POS 0 +#define UDIV_SUBTRACT 0 +#define UART0_SDR SDR0_UART0 +#define UART1_SDR SDR0_UART1 +#else /* CONFIG_405GP || CONFIG_405CR */ +#define UART0_BASE 0xef600300 +#define UART1_BASE 0xef600400 +#define CR0_MASK 0x00001fff +#define CR0_EXTCLK_ENA 0x000000c0 +#define CR0_UDIV_POS 1 +#define UDIV_MAX 32 +#endif + +/* using serial port 0 or 1 as U-Boot console ? */ +#if defined(CONFIG_UART1_CONSOLE) +#define ACTING_UART0_BASE UART1_BASE +#define ACTING_UART1_BASE UART0_BASE +#else +#define ACTING_UART0_BASE UART0_BASE +#define ACTING_UART1_BASE UART1_BASE +#endif + +#if defined(CONFIG_405EP) && defined(CONFIG_SYS_EXT_SERIAL_CLOCK) +#error "External serial clock not supported on AMCC PPC405EP!" +#endif + +#define UART_RBR 0x00 +#define UART_THR 0x00 +#define UART_IER 0x01 +#define UART_IIR 0x02 +#define UART_FCR 0x02 +#define UART_LCR 0x03 +#define UART_MCR 0x04 +#define UART_LSR 0x05 +#define UART_MSR 0x06 +#define UART_SCR 0x07 +#define UART_DLL 0x00 +#define UART_DLM 0x01 + +/*-----------------------------------------------------------------------------+ + | Line Status Register. + +-----------------------------------------------------------------------------*/ +#define asyncLSRDataReady1 0x01 +#define asyncLSROverrunError1 0x02 +#define asyncLSRParityError1 0x04 +#define asyncLSRFramingError1 0x08 +#define asyncLSRBreakInterrupt1 0x10 +#define asyncLSRTxHoldEmpty1 0x20 +#define asyncLSRTxShiftEmpty1 0x40 +#define asyncLSRRxFifoError1 0x80 + +#ifdef CONFIG_SERIAL_SOFTWARE_FIFO +/*-----------------------------------------------------------------------------+ + | Fifo + +-----------------------------------------------------------------------------*/ +typedef struct { + char *rx_buffer; + ulong rx_put; + ulong rx_get; +} serial_buffer_t; + +volatile static serial_buffer_t buf_info; +#endif + +static void serial_init_common(u32 base, u32 udiv, u16 bdiv) +{ + PPC4xx_SYS_INFO sys_info; + u8 val; + + get_sys_info(&sys_info); + + /* Correct UART frequency in bd-info struct now that + * the UART divisor is available + */ +#ifdef CONFIG_SYS_EXT_SERIAL_CLOCK + gd->uart_clk = CONFIG_SYS_EXT_SERIAL_CLOCK; +#else + gd->uart_clk = sys_info.freqUART / udiv; +#endif + + out_8((u8 *)base + UART_LCR, 0x80); /* set DLAB bit */ + out_8((u8 *)base + UART_DLL, bdiv); /* set baudrate divisor */ + out_8((u8 *)base + UART_DLM, bdiv >> 8); /* set baudrate divisor */ + out_8((u8 *)base + UART_LCR, 0x03); /* clear DLAB; set 8 bits, no parity */ + out_8((u8 *)base + UART_FCR, 0x00); /* disable FIFO */ + out_8((u8 *)base + UART_MCR, 0x00); /* no modem control DTR RTS */ + val = in_8((u8 *)base + UART_LSR); /* clear line status */ + val = in_8((u8 *)base + UART_RBR); /* read receive buffer */ + out_8((u8 *)base + UART_SCR, 0x00); /* set scratchpad */ + out_8((u8 *)base + UART_IER, 0x00); /* set interrupt enable reg */ +} + +#if (defined(CONFIG_440) || defined(CONFIG_405EX)) && \ + !defined(CONFIG_SYS_EXT_SERIAL_CLOCK) +static void serial_divs (int baudrate, unsigned long *pudiv, + unsigned short *pbdiv) +{ + sys_info_t sysinfo; + unsigned long div; /* total divisor udiv * bdiv */ + unsigned long umin; /* minimum udiv */ + unsigned short diff; /* smallest diff */ + unsigned long udiv; /* best udiv */ + unsigned short idiff; /* current diff */ + unsigned short ibdiv; /* current bdiv */ + unsigned long i; + unsigned long est; /* current estimate */ + + get_sys_info(&sysinfo); + + udiv = 32; /* Assume lowest possible serial clk */ + div = sysinfo.freqPLB / (16 * baudrate); /* total divisor */ + umin = sysinfo.pllOpbDiv << 1; /* 2 x OPB divisor */ + diff = 32; /* highest possible */ + + /* i is the test udiv value -- start with the largest + * possible (32) to minimize serial clock and constrain + * search to umin. + */ + for (i = 32; i > umin; i--) { + ibdiv = div / i; + est = i * ibdiv; + idiff = (est > div) ? (est-div) : (div-est); + if (idiff == 0) { + udiv = i; + break; /* can't do better */ + } else if (idiff < diff) { + udiv = i; /* best so far */ + diff = idiff; /* update lowest diff*/ + } + } + + *pudiv = udiv; + *pbdiv = div / udiv; +} + +#elif defined(CONFIG_405EZ) + +static void serial_divs (int baudrate, unsigned long *pudiv, + unsigned short *pbdiv) +{ + sys_info_t sysinfo; + unsigned long div; /* total divisor udiv * bdiv */ + unsigned long umin; /* minimum udiv */ + unsigned short diff; /* smallest diff */ + unsigned long udiv; /* best udiv */ + unsigned short idiff; /* current diff */ + unsigned short ibdiv; /* current bdiv */ + unsigned long i; + unsigned long est; /* current estimate */ + unsigned long plloutb; + unsigned long cpr_pllc; + u32 reg; + + /* check the pll feedback source */ + mfcpr(CPR0_PLLC, cpr_pllc); + + get_sys_info(&sysinfo); + + plloutb = ((CONFIG_SYS_CLK_FREQ * ((cpr_pllc & PLLC_SRC_MASK) ? + sysinfo.pllFwdDivB : sysinfo.pllFwdDiv) * + sysinfo.pllFbkDiv) / sysinfo.pllFwdDivB); + udiv = 256; /* Assume lowest possible serial clk */ + div = plloutb / (16 * baudrate); /* total divisor */ + umin = (plloutb / get_OPB_freq()) << 1; /* 2 x OPB divisor */ + diff = 256; /* highest possible */ + + /* i is the test udiv value -- start with the largest + * possible (256) to minimize serial clock and constrain + * search to umin. + */ + for (i = 256; i > umin; i--) { + ibdiv = div / i; + est = i * ibdiv; + idiff = (est > div) ? (est-div) : (div-est); + if (idiff == 0) { + udiv = i; + break; /* can't do better */ + } else if (idiff < diff) { + udiv = i; /* best so far */ + diff = idiff; /* update lowest diff*/ + } + } + + *pudiv = udiv; + mfcpr(CPC0_PERD0, reg); + reg &= ~0x0000ffff; + reg |= ((udiv - 0) << 8) | (udiv - 0); + mtcpr(CPC0_PERD0, reg); + *pbdiv = div / udiv; +} +#endif /* defined(CONFIG_440) && !defined(CONFIG_SYS_EXT_SERIAL_CLK) */ + +/* + * Minimal serial functions needed to use one of the SMC ports + * as serial console interface. + */ + +#if defined(CONFIG_440) +int serial_init_dev(unsigned long base) +{ + unsigned long reg; + unsigned long udiv; + unsigned short bdiv; +#ifdef CONFIG_SYS_EXT_SERIAL_CLOCK + unsigned long tmp; +#endif + + MFREG(UART0_SDR, reg); + reg &= ~CR0_MASK; + +#ifdef CONFIG_SYS_EXT_SERIAL_CLOCK + reg |= CR0_EXTCLK_ENA; + udiv = 1; + tmp = gd->baudrate * 16; + bdiv = (CONFIG_SYS_EXT_SERIAL_CLOCK + tmp / 2) / tmp; +#else + /* For 440, the cpu clock is on divider chain A, UART on divider + * chain B ... so cpu clock is irrelevant. Get the "optimized" + * values that are subject to the 1/2 opb clock constraint + */ + serial_divs (gd->baudrate, &udiv, &bdiv); +#endif + + reg |= (udiv - UDIV_SUBTRACT) << CR0_UDIV_POS; /* set the UART divisor */ + + /* + * Configure input clock to baudrate generator for all + * available serial ports here + */ + MTREG(UART0_SDR, reg); +#if defined(UART1_SDR) + MTREG(UART1_SDR, reg); +#endif +#if defined(UART2_SDR) + MTREG(UART2_SDR, reg); +#endif +#if defined(UART3_SDR) + MTREG(UART3_SDR, reg); +#endif + + serial_init_common(base, udiv, bdiv); + + return (0); +} + +#else /* !defined(CONFIG_440) */ + +int serial_init_dev (unsigned long base) +{ + unsigned long reg; + unsigned long tmp; + unsigned long clk; + unsigned long udiv; + unsigned short bdiv; + +#ifdef CONFIG_405EX + clk = tmp = 0; + mfsdr(UART0_SDR, reg); + reg &= ~CR0_MASK; +#ifdef CONFIG_SYS_EXT_SERIAL_CLOCK + reg |= CR0_EXTCLK_ENA; + udiv = 1; + tmp = gd->baudrate * 16; + bdiv = (CONFIG_SYS_EXT_SERIAL_CLOCK + tmp / 2) / tmp; +#else + serial_divs(gd->baudrate, &udiv, &bdiv); +#endif + reg |= (udiv - UDIV_SUBTRACT) << CR0_UDIV_POS; /* set the UART divisor */ + + /* + * Configure input clock to baudrate generator for all + * available serial ports here + */ + mtsdr(UART0_SDR, reg); + +#if defined(UART1_SDR) + mtsdr(UART1_SDR, reg); +#endif + +#elif defined(CONFIG_405EZ) + serial_divs(gd->baudrate, &udiv, &bdiv); + clk = tmp = reg = 0; +#else +#ifdef CONFIG_405EP + reg = mfdcr(CPC0_UCR) & ~(UCR0_MASK | UCR1_MASK); + clk = gd->cpu_clk; + tmp = CONFIG_SYS_BASE_BAUD * 16; + udiv = (clk + tmp / 2) / tmp; + if (udiv > UDIV_MAX) /* max. n bits for udiv */ + udiv = UDIV_MAX; + reg |= (udiv) << UCR0_UDIV_POS; /* set the UART divisor */ + reg |= (udiv) << UCR1_UDIV_POS; /* set the UART divisor */ + mtdcr (CPC0_UCR, reg); +#else /* CONFIG_405EP */ + reg = mfdcr(CPC0_CR0) & ~CR0_MASK; +#ifdef CONFIG_SYS_EXT_SERIAL_CLOCK + clk = CONFIG_SYS_EXT_SERIAL_CLOCK; + udiv = 1; + reg |= CR0_EXTCLK_ENA; +#else + clk = gd->cpu_clk; +#ifdef CONFIG_SYS_405_UART_ERRATA_59 + udiv = 31; /* Errata 59: stuck at 31 */ +#else + tmp = CONFIG_SYS_BASE_BAUD * 16; + udiv = (clk + tmp / 2) / tmp; + if (udiv > UDIV_MAX) /* max. n bits for udiv */ + udiv = UDIV_MAX; +#endif +#endif + reg |= (udiv - 1) << CR0_UDIV_POS; /* set the UART divisor */ + mtdcr (CPC0_CR0, reg); +#endif /* CONFIG_405EP */ + tmp = gd->baudrate * udiv * 16; + bdiv = (clk + tmp / 2) / tmp; +#endif /* CONFIG_405EX */ + + serial_init_common(base, udiv, bdiv); + + return (0); +} + +#endif /* if defined(CONFIG_440) */ + +void serial_setbrg_dev(unsigned long base) +{ + serial_init_dev(base); +} + +void serial_putc_dev(unsigned long base, const char c) +{ + int i; + + if (c == '\n') + serial_putc_dev(base, '\r'); + + /* check THRE bit, wait for transmiter available */ + for (i = 1; i < 3500; i++) { + if ((in_8((u8 *)base + UART_LSR) & 0x20) == 0x20) + break; + udelay (100); + } + + out_8((u8 *)base + UART_THR, c); /* put character out */ +} + +void serial_puts_dev (unsigned long base, const char *s) +{ + while (*s) + serial_putc_dev (base, *s++); +} + +int serial_getc_dev (unsigned long base) +{ + unsigned char status = 0; + + while (1) { +#if defined(CONFIG_HW_WATCHDOG) + WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */ +#endif /* CONFIG_HW_WATCHDOG */ + + status = in_8((u8 *)base + UART_LSR); + if ((status & asyncLSRDataReady1) != 0x0) + break; + + if ((status & ( asyncLSRFramingError1 | + asyncLSROverrunError1 | + asyncLSRParityError1 | + asyncLSRBreakInterrupt1 )) != 0) { + out_8((u8 *)base + UART_LSR, + asyncLSRFramingError1 | + asyncLSROverrunError1 | + asyncLSRParityError1 | + asyncLSRBreakInterrupt1); + } + } + + return (0x000000ff & (int) in_8((u8 *)base)); +} + +int serial_tstc_dev (unsigned long base) +{ + unsigned char status; + + status = in_8((u8 *)base + UART_LSR); + if ((status & asyncLSRDataReady1) != 0x0) + return (1); + + if ((status & ( asyncLSRFramingError1 | + asyncLSROverrunError1 | + asyncLSRParityError1 | + asyncLSRBreakInterrupt1 )) != 0) { + out_8((u8 *)base + UART_LSR, + asyncLSRFramingError1 | + asyncLSROverrunError1 | + asyncLSRParityError1 | + asyncLSRBreakInterrupt1); + } + + return 0; +} + +#ifdef CONFIG_SERIAL_SOFTWARE_FIFO + +void serial_isr (void *arg) +{ + int space; + int c; + const int rx_get = buf_info.rx_get; + int rx_put = buf_info.rx_put; + + if (rx_get <= rx_put) + space = CONFIG_SERIAL_SOFTWARE_FIFO - (rx_put - rx_get); + else + space = rx_get - rx_put; + + while (serial_tstc_dev (ACTING_UART0_BASE)) { + c = serial_getc_dev (ACTING_UART0_BASE); + if (space) { + buf_info.rx_buffer[rx_put++] = c; + space--; + } + if (rx_put == CONFIG_SERIAL_SOFTWARE_FIFO) + rx_put = 0; + if (space < CONFIG_SERIAL_SOFTWARE_FIFO / 4) { + /* Stop flow by setting RTS inactive */ + out_8((u8 *)ACTING_UART0_BASE + UART_MCR, + in_8((u8 *)ACTING_UART0_BASE + UART_MCR) & + (0xFF ^ 0x02)); + } + } + buf_info.rx_put = rx_put; +} + +void serial_buffered_init (void) +{ + serial_puts ("Switching to interrupt driven serial input mode.\n"); + buf_info.rx_buffer = malloc (CONFIG_SERIAL_SOFTWARE_FIFO); + buf_info.rx_put = 0; + buf_info.rx_get = 0; + + if (in_8((u8 *)ACTING_UART0_BASE + UART_MSR) & 0x10) + serial_puts ("Check CTS signal present on serial port: OK.\n"); + else + serial_puts ("WARNING: CTS signal not present on serial port.\n"); + + irq_install_handler ( VECNUM_U0 /*UART0 */ /*int vec */ , + serial_isr /*interrupt_handler_t *handler */ , + (void *) &buf_info /*void *arg */ ); + + /* Enable "RX Data Available" Interrupt on UART */ + out_8(ACTING_UART0_BASE + UART_IER, 0x01); + /* Set DTR active */ + out_8(ACTING_UART0_BASE + UART_MCR, + in_8((u8 *)ACTING_UART0_BASE + UART_MCR) | 0x01); + /* Start flow by setting RTS active */ + out_8(ACTING_UART0_BASE + UART_MCR, + in_8((u8 *)ACTING_UART0_BASE + UART_MCR) | 0x02); + /* Setup UART FIFO: RX trigger level: 4 byte, Enable FIFO */ + out_8(ACTING_UART0_BASE + UART_FCR, (1 << 6) | 1); +} + +void serial_buffered_putc (const char c) +{ + /* Wait for CTS */ +#if defined(CONFIG_HW_WATCHDOG) + while (!(in_8((u8 *)ACTING_UART0_BASE + UART_MSR) & 0x10)) + WATCHDOG_RESET (); +#else + while (!(in_8((u8 *)ACTING_UART0_BASE + UART_MSR) & 0x10)); +#endif + serial_putc (c); +} + +void serial_buffered_puts (const char *s) +{ + serial_puts (s); +} + +int serial_buffered_getc (void) +{ + int space; + int c; + int rx_get = buf_info.rx_get; + int rx_put; + +#if defined(CONFIG_HW_WATCHDOG) + while (rx_get == buf_info.rx_put) + WATCHDOG_RESET (); +#else + while (rx_get == buf_info.rx_put); +#endif + c = buf_info.rx_buffer[rx_get++]; + if (rx_get == CONFIG_SERIAL_SOFTWARE_FIFO) + rx_get = 0; + buf_info.rx_get = rx_get; + + rx_put = buf_info.rx_put; + if (rx_get <= rx_put) + space = CONFIG_SERIAL_SOFTWARE_FIFO - (rx_put - rx_get); + else + space = rx_get - rx_put; + + if (space > CONFIG_SERIAL_SOFTWARE_FIFO / 2) { + /* Start flow by setting RTS active */ + out_8(ACTING_UART0_BASE + UART_MCR, + in_8((u8 *)ACTING_UART0_BASE + UART_MCR) | 0x02); + } + + return c; +} + +int serial_buffered_tstc (void) +{ + return (buf_info.rx_get != buf_info.rx_put) ? 1 : 0; +} + +#endif /* CONFIG_SERIAL_SOFTWARE_FIFO */ + +#if defined(CONFIG_CMD_KGDB) +/* + AS HARNOIS : according to CONFIG_KGDB_SER_INDEX kgdb uses serial port + number 0 or number 1 + - if CONFIG_KGDB_SER_INDEX = 1 => serial port number 0 : + configuration has been already done + - if CONFIG_KGDB_SER_INDEX = 2 => serial port number 1 : + configure port 1 for serial I/O with rate = CONFIG_KGDB_BAUDRATE +*/ +#if (CONFIG_KGDB_SER_INDEX & 2) +void kgdb_serial_init (void) +{ + u8 val; + u16 br_reg; + + get_clocks (); + br_reg = (((((gd->cpu_clk / 16) / 18) * 10) / CONFIG_KGDB_BAUDRATE) + + 5) / 10; + /* + * Init onboard 16550 UART + */ + out_8((u8 *)ACTING_UART1_BASE + UART_LCR, 0x80); /* set DLAB bit */ + out_8((u8 *)ACTING_UART1_BASE + UART_DLL, (br_reg & 0x00ff)); /* set divisor for 9600 baud */ + out_8((u8 *)ACTING_UART1_BASE + UART_DLM, ((br_reg & 0xff00) >> 8)); /* set divisor for 9600 baud */ + out_8((u8 *)ACTING_UART1_BASE + UART_LCR, 0x03); /* line control 8 bits no parity */ + out_8((u8 *)ACTING_UART1_BASE + UART_FCR, 0x00); /* disable FIFO */ + out_8((u8 *)ACTING_UART1_BASE + UART_MCR, 0x00); /* no modem control DTR RTS */ + val = in_8((u8 *)ACTING_UART1_BASE + UART_LSR); /* clear line status */ + val = in_8((u8 *)ACTING_UART1_BASE + UART_RBR); /* read receive buffer */ + out_8((u8 *)ACTING_UART1_BASE + UART_SCR, 0x00); /* set scratchpad */ + out_8((u8 *)ACTING_UART1_BASE + UART_IER, 0x00); /* set interrupt enable reg */ +} + +void putDebugChar (const char c) +{ + if (c == '\n') + serial_putc ('\r'); + + out_8((u8 *)ACTING_UART1_BASE + UART_THR, c); /* put character out */ + + /* check THRE bit, wait for transfer done */ + while ((in_8((u8 *)ACTING_UART1_BASE + UART_LSR) & 0x20) != 0x20); +} + +void putDebugStr (const char *s) +{ + while (*s) + serial_putc (*s++); +} + +int getDebugChar (void) +{ + unsigned char status = 0; + + while (1) { + status = in_8((u8 *)ACTING_UART1_BASE + UART_LSR); + if ((status & asyncLSRDataReady1) != 0x0) + break; + + if ((status & (asyncLSRFramingError1 | + asyncLSROverrunError1 | + asyncLSRParityError1 | + asyncLSRBreakInterrupt1 )) != 0) { + out_8((u8 *)ACTING_UART1_BASE + UART_LSR, + asyncLSRFramingError1 | + asyncLSROverrunError1 | + asyncLSRParityError1 | + asyncLSRBreakInterrupt1); + } + } + + return (0x000000ff & (int) in_8((u8 *)ACTING_UART1_BASE)); +} + +void kgdb_interruptible (int yes) +{ + return; +} + +#else /* ! (CONFIG_KGDB_SER_INDEX & 2) */ + +void kgdb_serial_init (void) +{ + serial_printf ("[on serial] "); +} + +void putDebugChar (int c) +{ + serial_putc (c); +} + +void putDebugStr (const char *str) +{ + serial_puts (str); +} + +int getDebugChar (void) +{ + return serial_getc (); +} + +void kgdb_interruptible (int yes) +{ + return; +} +#endif /* (CONFIG_KGDB_SER_INDEX & 2) */ +#endif + + +#if defined(CONFIG_SERIAL_MULTI) +int serial0_init(void) +{ + return (serial_init_dev(UART0_BASE)); +} + +int serial1_init(void) +{ + return (serial_init_dev(UART1_BASE)); +} + +void serial0_setbrg (void) +{ + serial_setbrg_dev(UART0_BASE); +} + +void serial1_setbrg (void) +{ + serial_setbrg_dev(UART1_BASE); +} + +void serial0_putc(const char c) +{ + serial_putc_dev(UART0_BASE,c); +} + +void serial1_putc(const char c) +{ + serial_putc_dev(UART1_BASE, c); +} + +void serial0_puts(const char *s) +{ + serial_puts_dev(UART0_BASE, s); +} + +void serial1_puts(const char *s) +{ + serial_puts_dev(UART1_BASE, s); +} + +int serial0_getc(void) +{ + return(serial_getc_dev(UART0_BASE)); +} + +int serial1_getc(void) +{ + return(serial_getc_dev(UART1_BASE)); +} + +int serial0_tstc(void) +{ + return (serial_tstc_dev(UART0_BASE)); +} + +int serial1_tstc(void) +{ + return (serial_tstc_dev(UART1_BASE)); +} + +struct serial_device serial0_device = +{ + "serial0", + "UART0", + serial0_init, + serial0_setbrg, + serial0_getc, + serial0_tstc, + serial0_putc, + serial0_puts, +}; + +struct serial_device serial1_device = +{ + "serial1", + "UART1", + serial1_init, + serial1_setbrg, + serial1_getc, + serial1_tstc, + serial1_putc, + serial1_puts, +}; +#else +/* + * Wrapper functions + */ +int serial_init(void) +{ + return serial_init_dev(ACTING_UART0_BASE); +} + +void serial_setbrg(void) +{ + serial_setbrg_dev(ACTING_UART0_BASE); +} + +void serial_putc(const char c) +{ + serial_putc_dev(ACTING_UART0_BASE, c); +} + +void serial_puts(const char *s) +{ + serial_puts_dev(ACTING_UART0_BASE, s); +} + +int serial_getc(void) +{ + return serial_getc_dev(ACTING_UART0_BASE); +} + +int serial_tstc(void) +{ + return serial_tstc_dev(ACTING_UART0_BASE); +} +#endif /* CONFIG_SERIAL_MULTI */ + +#endif /* CONFIG_405GP || CONFIG_405CR */ diff --git a/arch/ppc/cpu/ppc4xx/Makefile b/arch/ppc/cpu/ppc4xx/Makefile new file mode 100644 index 0000000..88d53fb --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/Makefile @@ -0,0 +1,92 @@ +# +# (C) Copyright 2000-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).a + +START := resetvec.o +START += start.o + +SOBJS := cache.o +SOBJS += dcr.o +SOBJS += kgdb.o + +COBJS := 40x_spd_sdram.o + +COBJS += 44x_spd_ddr.o +COBJS += 44x_spd_ddr2.o +ifdef CONFIG_PPC4xx_DDR_AUTOCALIBRATION +COBJS += 4xx_ibm_ddr2_autocalib.o +endif +COBJS += 4xx_pci.o +COBJS += 4xx_pcie.o +COBJS += bedbug_405.o +ifdef CONFIG_CMD_CHIP_CONFIG +COBJS += cmd_chip_config.o +endif +COBJS += commproc.o +COBJS += cpu.o +COBJS += cpu_init.o +COBJS += denali_data_eye.o +COBJS += denali_spd_ddr2.o +COBJS += ecc.o +COBJS += fdt.o +COBJS += interrupts.o +COBJS += iop480_uart.o +ifdef CONFIG_CMD_REGINFO +COBJS += reginfo.o +endif +COBJS += sdram.o +COBJS += speed.o +COBJS += tlb.o +COBJS += traps.o +COBJS += usb.o +COBJS += usb_ohci.o +COBJS += usbdev.o +ifndef CONFIG_XILINX_440 +COBJS += 4xx_uart.o +COBJS += gpio.o +COBJS += miiphy.o +COBJS += uic.o +else +COBJS += xilinx_irq.o +endif + +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/ppc/cpu/ppc4xx/bedbug_405.c b/arch/ppc/cpu/ppc4xx/bedbug_405.c new file mode 100644 index 0000000..ef11cb6 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/bedbug_405.c @@ -0,0 +1,308 @@ +/* + * Bedbug Functions specific to the PPC405 chip + */ + +#include <common.h> +#include <command.h> +#include <linux/ctype.h> +#include <bedbug/type.h> +#include <bedbug/bedbug.h> +#include <bedbug/regs.h> +#include <bedbug/ppc.h> + +#if defined(CONFIG_CMD_BEDBUG) && defined(CONFIG_4xx) + +#define MAX_BREAK_POINTS 4 + +extern CPU_DEBUG_CTX bug_ctx; + +void bedbug405_init __P ((void)); +void bedbug405_do_break __P ((cmd_tbl_t *, int, int, char *[])); +void bedbug405_break_isr __P ((struct pt_regs *)); +int bedbug405_find_empty __P ((void)); +int bedbug405_set __P ((int, unsigned long)); +int bedbug405_clear __P ((int)); + + +/* ====================================================================== + * Initialize the global bug_ctx structure for the AMCC PPC405. Clear all + * of the breakpoints. + * ====================================================================== */ + +void bedbug405_init (void) +{ + int i; + + /* -------------------------------------------------- */ + + bug_ctx.hw_debug_enabled = 0; + bug_ctx.stopped = 0; + bug_ctx.current_bp = 0; + bug_ctx.regs = NULL; + + bug_ctx.do_break = bedbug405_do_break; + bug_ctx.break_isr = bedbug405_break_isr; + bug_ctx.find_empty = bedbug405_find_empty; + bug_ctx.set = bedbug405_set; + bug_ctx.clear = bedbug405_clear; + + for (i = 1; i <= MAX_BREAK_POINTS; ++i) + (*bug_ctx.clear) (i); + + puts ("BEDBUG:ready\n"); + return; +} /* bedbug_init_breakpoints */ + + + +/* ====================================================================== + * Set/clear/show one of the hardware breakpoints for the 405. The "off" + * string will disable a specific breakpoint. The "show" string will + * display the current breakpoints. Otherwise an address will set a + * breakpoint at that address. Setting a breakpoint uses the CPU-specific + * set routine which will assign a breakpoint number. + * ====================================================================== */ + +void bedbug405_do_break (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + long addr = 0; /* Address to break at */ + int which_bp; /* Breakpoint number */ + + /* -------------------------------------------------- */ + + if (argc < 2) { + cmd_usage(cmdtp); + return; + } + + /* Turn off a breakpoint */ + + if (strcmp (argv[1], "off") == 0) { + if (bug_ctx.hw_debug_enabled == 0) { + printf ("No breakpoints enabled\n"); + return; + } + + which_bp = simple_strtoul (argv[2], NULL, 10); + + if (bug_ctx.clear) + (*bug_ctx.clear) (which_bp); + + printf ("Breakpoint %d removed\n", which_bp); + return; + } + + /* Show a list of breakpoints */ + + if (strcmp (argv[1], "show") == 0) { + for (which_bp = 1; which_bp <= MAX_BREAK_POINTS; ++which_bp) { + + switch (which_bp) { + case 1: + addr = GET_IAC1 (); + break; + case 2: + addr = GET_IAC2 (); + break; + case 3: + addr = GET_IAC3 (); + break; + case 4: + addr = GET_IAC4 (); + break; + } + + printf ("Breakpoint [%d]: ", which_bp); + if (addr == 0) + printf ("NOT SET\n"); + else + disppc ((unsigned char *) addr, 0, 1, bedbug_puts, + F_RADHEX); + } + return; + } + + /* Set a breakpoint at the address */ + + if (!isdigit (argv[1][0])) { + cmd_usage(cmdtp); + return; + } + + addr = simple_strtoul (argv[1], NULL, 16) & 0xfffffffc; + + if ((bug_ctx.set) && (which_bp = (*bug_ctx.set) (0, addr)) > 0) { + printf ("Breakpoint [%d]: ", which_bp); + disppc ((unsigned char *) addr, 0, 1, bedbug_puts, F_RADHEX); + } + + return; +} /* bedbug405_do_break */ + + + +/* ====================================================================== + * Handle a breakpoint. First determine which breakpoint was hit by + * looking at the DeBug Status Register (DBSR), clear the breakpoint + * and enter a mini main loop. Stay in the loop until the stopped flag + * in the debug context is cleared. + * ====================================================================== */ + +void bedbug405_break_isr (struct pt_regs *regs) +{ + unsigned long dbsr_val; /* Value of the DBSR */ + unsigned long addr = 0; /* Address stopped at */ + + /* -------------------------------------------------- */ + + dbsr_val = GET_DBSR (); + + if (dbsr_val & DBSR_IA1) { + bug_ctx.current_bp = 1; + addr = GET_IAC1 (); + SET_DBSR (DBSR_IA1); /* Write a 1 to clear */ + } else if (dbsr_val & DBSR_IA2) { + bug_ctx.current_bp = 2; + addr = GET_IAC2 (); + SET_DBSR (DBSR_IA2); /* Write a 1 to clear */ + } else if (dbsr_val & DBSR_IA3) { + bug_ctx.current_bp = 3; + addr = GET_IAC3 (); + SET_DBSR (DBSR_IA3); /* Write a 1 to clear */ + } else if (dbsr_val & DBSR_IA4) { + bug_ctx.current_bp = 4; + addr = GET_IAC4 (); + SET_DBSR (DBSR_IA4); /* Write a 1 to clear */ + } + + bedbug_main_loop (addr, regs); + return; +} /* bedbug405_break_isr */ + + + +/* ====================================================================== + * Look through all of the hardware breakpoints available to see if one + * is unused. + * ====================================================================== */ + +int bedbug405_find_empty (void) +{ + /* -------------------------------------------------- */ + + if (GET_IAC1 () == 0) + return 1; + + if (GET_IAC2 () == 0) + return 2; + + if (GET_IAC3 () == 0) + return 3; + + if (GET_IAC4 () == 0) + return 4; + + return 0; +} /* bedbug405_find_empty */ + + + +/* ====================================================================== + * Set a breakpoint. If 'which_bp' is zero then find an unused breakpoint + * number, otherwise reassign the given breakpoint. If hardware debugging + * is not enabled, then turn it on via the MSR and DBCR0. Set the break + * address in the appropriate IACx register and enable proper address + * beakpoint in DBCR0. + * ====================================================================== */ + +int bedbug405_set (int which_bp, unsigned long addr) +{ + /* -------------------------------------------------- */ + + /* Only look if which_bp == 0, else use which_bp */ + if ((bug_ctx.find_empty) && (!which_bp) && + (which_bp = (*bug_ctx.find_empty) ()) == 0) { + printf ("All breakpoints in use\n"); + return 0; + } + + if (which_bp < 1 || which_bp > MAX_BREAK_POINTS) { + printf ("Invalid break point # %d\n", which_bp); + return 0; + } + + if (!bug_ctx.hw_debug_enabled) { + SET_MSR (GET_MSR () | 0x200); /* set MSR[ DE ] */ + SET_DBCR0 (GET_DBCR0 () | DBCR0_IDM); + bug_ctx.hw_debug_enabled = 1; + } + + switch (which_bp) { + case 1: + SET_IAC1 (addr); + SET_DBCR0 (GET_DBCR0 () | DBCR0_IA1); + break; + + case 2: + SET_IAC2 (addr); + SET_DBCR0 (GET_DBCR0 () | DBCR0_IA2); + break; + + case 3: + SET_IAC3 (addr); + SET_DBCR0 (GET_DBCR0 () | DBCR0_IA3); + break; + + case 4: + SET_IAC4 (addr); + SET_DBCR0 (GET_DBCR0 () | DBCR0_IA4); + break; + } + + return which_bp; +} /* bedbug405_set */ + + + +/* ====================================================================== + * Disable a specific breakoint by setting the appropriate IACx register + * to zero and claring the instruction address breakpoint in DBCR0. + * ====================================================================== */ + +int bedbug405_clear (int which_bp) +{ + /* -------------------------------------------------- */ + + if (which_bp < 1 || which_bp > MAX_BREAK_POINTS) { + printf ("Invalid break point # (%d)\n", which_bp); + return -1; + } + + switch (which_bp) { + case 1: + SET_IAC1 (0); + SET_DBCR0 (GET_DBCR0 () & ~DBCR0_IA1); + break; + + case 2: + SET_IAC2 (0); + SET_DBCR0 (GET_DBCR0 () & ~DBCR0_IA2); + break; + + case 3: + SET_IAC3 (0); + SET_DBCR0 (GET_DBCR0 () & ~DBCR0_IA3); + break; + + case 4: + SET_IAC4 (0); + SET_DBCR0 (GET_DBCR0 () & ~DBCR0_IA4); + break; + } + + return 0; +} /* bedbug405_clear */ + + +/* ====================================================================== */ +#endif diff --git a/arch/ppc/cpu/ppc4xx/cache.S b/arch/ppc/cpu/ppc4xx/cache.S new file mode 100644 index 0000000..269716f --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/cache.S @@ -0,0 +1,235 @@ +/* + * This file contains miscellaneous low-level functions. + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * Largely rewritten by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + */ + +#include <config.h> +#include <config.h> +#include <ppc4xx.h> +#include <ppc_asm.tmpl> +#include <ppc_defs.h> +#include <asm/cache.h> +#include <asm/mmu.h> + +/* + * Flush instruction cache. + */ +_GLOBAL(invalidate_icache) + iccci r0,r0 + isync + blr + +/* + * Write any modified data cache blocks out to memory + * and invalidate the corresponding instruction cache blocks. + * + * flush_icache_range(unsigned long start, unsigned long stop) + */ +_GLOBAL(flush_icache_range) + li r5,L1_CACHE_BYTES-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,L1_CACHE_SHIFT + beqlr + mtctr r4 + mr r6,r3 +1: dcbst 0,r3 + addi r3,r3,L1_CACHE_BYTES + bdnz 1b + sync /* wait for dcbst's to get to ram */ + mtctr r4 +2: icbi 0,r6 + addi r6,r6,L1_CACHE_BYTES + bdnz 2b + sync /* additional sync needed on g4 */ + isync + blr + +/* + * Write any modified data cache blocks out to memory. + * Does not invalidate the corresponding cache lines (especially for + * any corresponding instruction cache). + * + * clean_dcache_range(unsigned long start, unsigned long stop) + */ +_GLOBAL(clean_dcache_range) + li r5,L1_CACHE_BYTES-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,L1_CACHE_SHIFT + beqlr + mtctr r4 + +1: dcbst 0,r3 + addi r3,r3,L1_CACHE_BYTES + bdnz 1b + sync /* wait for dcbst's to get to ram */ + blr + +/* + * Write any modified data cache blocks out to memory and invalidate them. + * Does not invalidate the corresponding instruction cache blocks. + * + * flush_dcache_range(unsigned long start, unsigned long stop) + */ +_GLOBAL(flush_dcache_range) + li r5,L1_CACHE_BYTES-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,L1_CACHE_SHIFT + beqlr + mtctr r4 + +1: dcbf 0,r3 + addi r3,r3,L1_CACHE_BYTES + bdnz 1b + sync /* wait for dcbst's to get to ram */ + blr + +/* + * Like above, but invalidate the D-cache. This is used by the 8xx + * to invalidate the cache so the PPC core doesn't get stale data + * from the CPM (no cache snooping here :-). + * + * invalidate_dcache_range(unsigned long start, unsigned long stop) + */ +_GLOBAL(invalidate_dcache_range) + li r5,L1_CACHE_BYTES-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,L1_CACHE_SHIFT + beqlr + mtctr r4 + +1: dcbi 0,r3 + addi r3,r3,L1_CACHE_BYTES + bdnz 1b + sync /* wait for dcbi's to get to ram */ + blr + +/* + * 40x cores have 8K or 16K dcache and 32 byte line size. + * 44x has a 32K dcache and 32 byte line size. + * 8xx has 1, 2, 4, 8K variants. + * For now, cover the worst case of the 44x. + * Must be called with external interrupts disabled. + */ +#define CACHE_NWAYS 64 +#define CACHE_NLINES 32 + +_GLOBAL(flush_dcache) + li r4,(2 * CACHE_NWAYS * CACHE_NLINES) + mtctr r4 + lis r5,0 +1: lwz r3,0(r5) /* Load one word from every line */ + addi r5,r5,L1_CACHE_BYTES + bdnz 1b + sync + blr + +_GLOBAL(invalidate_dcache) + addi r6,0,0x0000 /* clear GPR 6 */ + /* Do loop for # of dcache congruence classes. */ + lis r7,(CONFIG_SYS_DCACHE_SIZE / L1_CACHE_BYTES / 2)@ha /* TBS for large sized cache */ + ori r7,r7,(CONFIG_SYS_DCACHE_SIZE / L1_CACHE_BYTES / 2)@l + /* NOTE: dccci invalidates both */ + mtctr r7 /* ways in the D cache */ +..dcloop: + dccci 0,r6 /* invalidate line */ + addi r6,r6,L1_CACHE_BYTES /* bump to next line */ + bdnz ..dcloop + sync + blr + +/* + * Cache functions. + * + * NOTE: currently the 440s run with dcache _disabled_ once relocated to DRAM, + * although for some cache-ralated calls stubs have to be provided to satisfy + * symbols resolution. + * Icache-related functions are used in POST framework. + * + */ +#ifdef CONFIG_440 + + .globl dcache_disable + .globl dcache_enable + .globl icache_disable + .globl icache_enable +dcache_disable: +dcache_enable: +icache_disable: +icache_enable: + blr + + .globl dcache_status + .globl icache_status +dcache_status: +icache_status: + mr r3, 0 + blr + +#else /* CONFIG_440 */ + + .globl icache_enable +icache_enable: + mflr r8 + bl invalidate_icache + mtlr r8 + isync + addis r3,r0, 0xc000 /* set bit 0 */ + mticcr r3 + blr + + .globl icache_disable +icache_disable: + addis r3,r0, 0x0000 /* clear bit 0 */ + mticcr r3 + isync + blr + + .globl icache_status +icache_status: + mficcr r3 + srwi r3, r3, 31 /* >>31 => select bit 0 */ + blr + + .globl dcache_enable +dcache_enable: + mflr r8 + bl invalidate_dcache + mtlr r8 + isync + addis r3,r0, 0x8000 /* set bit 0 */ + mtdccr r3 + blr + + .globl dcache_disable +dcache_disable: + mflr r8 + bl flush_dcache + mtlr r8 + addis r3,r0, 0x0000 /* clear bit 0 */ + mtdccr r3 + blr + + .globl dcache_status +dcache_status: + mfdccr r3 + srwi r3, r3, 31 /* >>31 => select bit 0 */ + blr + +#endif /* CONFIG_440 */ diff --git a/arch/ppc/cpu/ppc4xx/cmd_chip_config.c b/arch/ppc/cpu/ppc4xx/cmd_chip_config.c new file mode 100644 index 0000000..ba57211 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/cmd_chip_config.c @@ -0,0 +1,148 @@ +/* + * (C) Copyright 2008-2009 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * (C) Copyright 2009 + * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +#include <common.h> +#include <command.h> +#include <i2c.h> +#include <asm/ppc4xx_config.h> +#include <asm/io.h> + +static void print_configs(int cur_config_nr) +{ + int i; + + for (i = 0; i < ppc4xx_config_count; i++) { + printf("%-16s - %s", ppc4xx_config_val[i].label, + ppc4xx_config_val[i].description); + if (i == cur_config_nr) + printf(" ***"); + printf("\n"); + } + +} + +static int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + int i; + int ret; + int cur_config_nr = -1; + u8 cur_config[CONFIG_4xx_CONFIG_BLOCKSIZE]; + + /* + * First switch to correct I2C bus. This is I2C bus 0 + * for all currently available 4xx derivats. + */ + I2C_SET_BUS(0); + +#ifdef CONFIG_CMD_EEPROM + ret = eeprom_read(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR, + CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET, + cur_config, CONFIG_4xx_CONFIG_BLOCKSIZE); +#else + ret = i2c_read(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR, + CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET, + 1, cur_config, CONFIG_4xx_CONFIG_BLOCKSIZE); +#endif + if (ret) { + printf("Error reading EEPROM at addr 0x%x\n", + CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR); + return -1; + } + + /* + * Search the current configuration + */ + for (i = 0; i < ppc4xx_config_count; i++) { + if (memcmp(cur_config, ppc4xx_config_val[i].val, + CONFIG_4xx_CONFIG_BLOCKSIZE) == 0) + cur_config_nr = i; + } + + if (cur_config_nr == -1) { + printf("Warning: The I2C bootstrap values don't match any" + " of the available options!\n"); + printf("I2C bootstrap EEPROM values are (I2C address 0x%02x):\n", + CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR); + for (i = 0; i < CONFIG_4xx_CONFIG_BLOCKSIZE; i++) { + printf("%02x ", cur_config[i]); + } + printf("\n"); + } + + if (argc < 2) { + printf("Available configurations (I2C address 0x%02x):\n", + CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR); + print_configs(cur_config_nr); + return 0; + } + + for (i = 0; i < ppc4xx_config_count; i++) { + /* + * Search for configuration name/label + */ + if (strcmp(argv[1], ppc4xx_config_val[i].label) == 0) { + printf("Using configuration:\n%-16s - %s\n", + ppc4xx_config_val[i].label, + ppc4xx_config_val[i].description); + +#ifdef CONFIG_CMD_EEPROM + ret = eeprom_write(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR, + CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET, + ppc4xx_config_val[i].val, + CONFIG_4xx_CONFIG_BLOCKSIZE); +#else + ret = i2c_write(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR, + CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET, + 1, ppc4xx_config_val[i].val, + CONFIG_4xx_CONFIG_BLOCKSIZE); +#endif + udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000); + if (ret) { + printf("Error updating EEPROM at addr 0x%x\n", + CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR); + return -1; + } + + printf("done (dump via 'i2c md %x 0.1 %x')\n", + CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR, + CONFIG_4xx_CONFIG_BLOCKSIZE); + printf("Reset the board for the changes to" + " take effect\n"); + return 0; + } + } + + printf("Configuration %s not found!\n", argv[1]); + print_configs(cur_config_nr); + return -1; +} + +U_BOOT_CMD( + chip_config, 2, 0, do_chip_config, + "program the I2C bootstrap EEPROM", + "[config-label]" +); diff --git a/arch/ppc/cpu/ppc4xx/commproc.c b/arch/ppc/cpu/ppc4xx/commproc.c new file mode 100644 index 0000000..a1696d3 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/commproc.c @@ -0,0 +1,77 @@ +/* + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * + * Atapted for ppc4XX by Denis Peter + */ + +#include <common.h> +#include <commproc.h> +#include <asm/io.h> + +#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) + +#if defined(CONFIG_SYS_POST_WORD_ADDR) +# define _POST_ADDR ((CONFIG_SYS_OCM_DATA_ADDR) + (CONFIG_SYS_POST_WORD_ADDR)) +#elif defined(CONFIG_SYS_POST_ALT_WORD_ADDR) +# define _POST_ADDR (CONFIG_SYS_POST_ALT_WORD_ADDR) +#endif + +void post_word_store (ulong a) +{ + volatile void *save_addr = (volatile void *)(_POST_ADDR); + + out_be32(save_addr, a); +} + +ulong post_word_load (void) +{ + volatile void *save_addr = (volatile void *)(_POST_ADDR); + + return in_be32(save_addr); +} + +#endif /* CONFIG_POST || CONFIG_LOGBUFFER*/ + +#ifdef CONFIG_BOOTCOUNT_LIMIT + +void bootcount_store (ulong a) +{ + volatile ulong *save_addr = + (volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR); + + save_addr[0] = a; + save_addr[1] = BOOTCOUNT_MAGIC; +} + +ulong bootcount_load (void) +{ + volatile ulong *save_addr = + (volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR); + + if (save_addr[1] != BOOTCOUNT_MAGIC) + return 0; + else + return save_addr[0]; +} + +#endif /* CONFIG_BOOTCOUNT_LIMIT */ diff --git a/arch/ppc/cpu/ppc4xx/config.mk b/arch/ppc/cpu/ppc4xx/config.mk new file mode 100644 index 0000000..ea4d707 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/config.mk @@ -0,0 +1,37 @@ +# +# (C) Copyright 2000 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +PLATFORM_RELFLAGS += -fPIC -meabi +PLATFORM_CPPFLAGS += -DCONFIG_4xx -ffixed-r2 -mstring -msoft-float + +cfg=$(shell grep configs $(OBJTREE)/include/config.h | sed 's/.*<\(configs.*\)>/\1/') +is440:=$(shell grep CONFIG_440 $(TOPDIR)/include/$(cfg)) + +ifneq (,$(findstring CONFIG_440,$(is440))) +PLATFORM_CPPFLAGS += -Wa,-m440 -mcpu=440 +else +PLATFORM_CPPFLAGS += -Wa,-m405 -mcpu=405 +endif + +# Use default linker script. Board port can override in board/*/config.mk +LDSCRIPT := $(SRCTREE)/arch/ppc/cpu/ppc4xx/u-boot.lds diff --git a/arch/ppc/cpu/ppc4xx/cpu.c b/arch/ppc/cpu/ppc4xx/cpu.c new file mode 100644 index 0000000..e1a023b --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/cpu.c @@ -0,0 +1,754 @@ +/* + * (C) Copyright 2000-2007 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * CPU specific code + * + * written or collected and sometimes rewritten by + * Magnus Damm <damm@bitsmart.com> + * + * minor modifications by + * Wolfgang Denk <wd@denx.de> + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <asm/cache.h> +#include <ppc4xx.h> +#include <netdev.h> + +DECLARE_GLOBAL_DATA_PTR; + +void board_reset(void); + +/* + * To provide an interface to detect CPU number for boards that support + * more then one CPU, we implement the "weak" default functions here. + * + * Returns CPU number + */ +int __get_cpu_num(void) +{ + return NA_OR_UNKNOWN_CPU; +} +int get_cpu_num(void) __attribute__((weak, alias("__get_cpu_num"))); + +#if defined(CONFIG_PCI) +#if defined(CONFIG_405GP) || \ + defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) + +#define PCI_ASYNC + +static int pci_async_enabled(void) +{ +#if defined(CONFIG_405GP) + return (mfdcr(CPC0_PSR) & PSR_PCI_ASYNC_EN); +#endif + +#if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) + unsigned long val; + + mfsdr(SDR0_SDSTP1, val); + return (val & SDR0_SDSTP1_PAME_MASK); +#endif +} +#endif +#endif /* CONFIG_PCI */ + +#if defined(CONFIG_PCI) && !defined(CONFIG_IOP480) && \ + !defined(CONFIG_405) && !defined(CONFIG_405EX) +int pci_arbiter_enabled(void) +{ +#if defined(CONFIG_405GP) + return (mfdcr(CPC0_PSR) & PSR_PCI_ARBIT_EN); +#endif + +#if defined(CONFIG_405EP) + return (mfdcr(CPC0_PCI) & CPC0_PCI_ARBIT_EN); +#endif + +#if defined(CONFIG_440GP) + return (mfdcr(CPC0_STRP1) & CPC0_STRP1_PAE_MASK); +#endif + +#if defined(CONFIG_440GX) || defined(CONFIG_440SP) || defined(CONFIG_440SPE) + unsigned long val; + + mfsdr(SDR0_XCR, val); + return (val & 0x80000000); +#endif +#if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) + unsigned long val; + + mfsdr(SDR0_PCI0, val); + return (val & 0x80000000); +#endif +} +#endif + +#if defined(CONFIG_405EP) +#define I2C_BOOTROM + +static int i2c_bootrom_enabled(void) +{ +#if defined(CONFIG_405EP) + return (mfdcr(CPC0_BOOT) & CPC0_BOOT_SEP); +#else + unsigned long val; + + mfsdr(SDR0_SDCS0, val); + return (val & SDR0_SDCS_SDD); +#endif +} +#endif + +#if defined(CONFIG_440GX) +#define SDR0_PINSTP_SHIFT 29 +static char *bootstrap_str[] = { + "EBC (16 bits)", + "EBC (8 bits)", + "EBC (32 bits)", + "EBC (8 bits)", + "PCI", + "I2C (Addr 0x54)", + "Reserved", + "I2C (Addr 0x50)", +}; +static char bootstrap_char[] = { 'A', 'B', 'C', 'B', 'D', 'E', 'x', 'F' }; +#endif + +#if defined(CONFIG_440SP) || defined(CONFIG_440SPE) +#define SDR0_PINSTP_SHIFT 30 +static char *bootstrap_str[] = { + "EBC (8 bits)", + "PCI", + "I2C (Addr 0x54)", + "I2C (Addr 0x50)", +}; +static char bootstrap_char[] = { 'A', 'B', 'C', 'D'}; +#endif + +#if defined(CONFIG_440EP) || defined(CONFIG_440GR) +#define SDR0_PINSTP_SHIFT 29 +static char *bootstrap_str[] = { + "EBC (8 bits)", + "PCI", + "NAND (8 bits)", + "EBC (16 bits)", + "EBC (16 bits)", + "I2C (Addr 0x54)", + "PCI", + "I2C (Addr 0x52)", +}; +static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'G', 'F', 'H' }; +#endif + +#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) +#define SDR0_PINSTP_SHIFT 29 +static char *bootstrap_str[] = { + "EBC (8 bits)", + "EBC (16 bits)", + "EBC (16 bits)", + "NAND (8 bits)", + "PCI", + "I2C (Addr 0x54)", + "PCI", + "I2C (Addr 0x52)", +}; +static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'G', 'F', 'H' }; +#endif + +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) +#define SDR0_PINSTP_SHIFT 29 +static char *bootstrap_str[] = { + "EBC (8 bits)", + "EBC (16 bits)", + "PCI", + "PCI", + "EBC (16 bits)", + "NAND (8 bits)", + "I2C (Addr 0x54)", /* A8 */ + "I2C (Addr 0x52)", /* A4 */ +}; +static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H' }; +#endif + +#if defined(CONFIG_460SX) +#define SDR0_PINSTP_SHIFT 29 +static char *bootstrap_str[] = { + "EBC (8 bits)", + "EBC (16 bits)", + "EBC (32 bits)", + "NAND (8 bits)", + "I2C (Addr 0x54)", /* A8 */ + "I2C (Addr 0x52)", /* A4 */ +}; +static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'G' }; +#endif + +#if defined(CONFIG_405EZ) +#define SDR0_PINSTP_SHIFT 28 +static char *bootstrap_str[] = { + "EBC (8 bits)", + "SPI (fast)", + "NAND (512 page, 4 addr cycle)", + "I2C (Addr 0x50)", + "EBC (32 bits)", + "I2C (Addr 0x50)", + "NAND (2K page, 5 addr cycle)", + "I2C (Addr 0x50)", + "EBC (16 bits)", + "Reserved", + "NAND (2K page, 4 addr cycle)", + "I2C (Addr 0x50)", + "NAND (512 page, 3 addr cycle)", + "I2C (Addr 0x50)", + "SPI (slow)", + "I2C (Addr 0x50)", +}; +static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', \ + 'I', 'x', 'K', 'L', 'M', 'N', 'O', 'P' }; +#endif + +#if defined(CONFIG_405EX) +#define SDR0_PINSTP_SHIFT 29 +static char *bootstrap_str[] = { + "EBC (8 bits)", + "EBC (16 bits)", + "EBC (16 bits)", + "NAND (8 bits)", + "NAND (8 bits)", + "I2C (Addr 0x54)", + "EBC (8 bits)", + "I2C (Addr 0x52)", +}; +static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'G', 'F', 'H' }; +#endif + +#if defined(SDR0_PINSTP_SHIFT) +static int bootstrap_option(void) +{ + unsigned long val; + + mfsdr(SDR0_PINSTP, val); + return ((val & 0xf0000000) >> SDR0_PINSTP_SHIFT); +} +#endif /* SDR0_PINSTP_SHIFT */ + + +#if defined(CONFIG_440) +static int do_chip_reset (unsigned long sys0, unsigned long sys1) +{ + /* Changes to CPC0_SYS0 and CPC0_SYS1 require chip + * reset. + */ + mtdcr (CPC0_CR0, mfdcr (CPC0_CR0) | 0x80000000); /* Set SWE */ + mtdcr (CPC0_SYS0, sys0); + mtdcr (CPC0_SYS1, sys1); + mtdcr (CPC0_CR0, mfdcr (CPC0_CR0) & ~0x80000000); /* Clr SWE */ + mtspr (SPRN_DBCR0, 0x20000000); /* Reset the chip */ + + return 1; +} +#endif + + +int checkcpu (void) +{ +#if !defined(CONFIG_405) /* not used on Xilinx 405 FPGA implementations */ + uint pvr = get_pvr(); + ulong clock = gd->cpu_clk; + char buf[32]; +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) + u32 reg; +#endif + +#if !defined(CONFIG_IOP480) + char addstr[64] = ""; + sys_info_t sys_info; + int cpu_num; + + cpu_num = get_cpu_num(); + if (cpu_num >= 0) + printf("CPU%d: ", cpu_num); + else + puts("CPU: "); + + get_sys_info(&sys_info); + +#if defined(CONFIG_XILINX_440) + puts("IBM PowerPC 4"); +#else + puts("AMCC PowerPC 4"); +#endif + +#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \ + defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \ + defined(CONFIG_405EX) + puts("05"); +#endif +#if defined(CONFIG_440) +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) + puts("60"); +#else + puts("40"); +#endif +#endif + + switch (pvr) { + case PVR_405GP_RB: + puts("GP Rev. B"); + break; + + case PVR_405GP_RC: + puts("GP Rev. C"); + break; + + case PVR_405GP_RD: + puts("GP Rev. D"); + break; + +#ifdef CONFIG_405GP + case PVR_405GP_RE: /* 405GP rev E and 405CR rev C have same PVR */ + puts("GP Rev. E"); + break; +#endif + + case PVR_405CR_RA: + puts("CR Rev. A"); + break; + + case PVR_405CR_RB: + puts("CR Rev. B"); + break; + +#ifdef CONFIG_405CR + case PVR_405CR_RC: /* 405GP rev E and 405CR rev C have same PVR */ + puts("CR Rev. C"); + break; +#endif + + case PVR_405GPR_RB: + puts("GPr Rev. B"); + break; + + case PVR_405EP_RB: + puts("EP Rev. B"); + break; + + case PVR_405EZ_RA: + puts("EZ Rev. A"); + break; + + case PVR_405EX1_RA: + puts("EX Rev. A"); + strcpy(addstr, "Security support"); + break; + + case PVR_405EXR2_RA: + puts("EXr Rev. A"); + strcpy(addstr, "No Security support"); + break; + + case PVR_405EX1_RC: + puts("EX Rev. C"); + strcpy(addstr, "Security support"); + break; + + case PVR_405EX2_RC: + puts("EX Rev. C"); + strcpy(addstr, "No Security support"); + break; + + case PVR_405EXR1_RC: + puts("EXr Rev. C"); + strcpy(addstr, "Security support"); + break; + + case PVR_405EXR2_RC: + puts("EXr Rev. C"); + strcpy(addstr, "No Security support"); + break; + + case PVR_405EX1_RD: + puts("EX Rev. D"); + strcpy(addstr, "Security support"); + break; + + case PVR_405EX2_RD: + puts("EX Rev. D"); + strcpy(addstr, "No Security support"); + break; + + case PVR_405EXR1_RD: + puts("EXr Rev. D"); + strcpy(addstr, "Security support"); + break; + + case PVR_405EXR2_RD: + puts("EXr Rev. D"); + strcpy(addstr, "No Security support"); + break; + +#if defined(CONFIG_440) + case PVR_440GP_RB: + puts("GP Rev. B"); + /* See errata 1.12: CHIP_4 */ + if ((mfdcr(CPC0_SYS0) != mfdcr(CPC0_STRP0)) || + (mfdcr(CPC0_SYS1) != mfdcr(CPC0_STRP1)) ){ + puts ( "\n\t CPC0_SYSx DCRs corrupted. " + "Resetting chip ...\n"); + udelay( 1000 * 1000 ); /* Give time for serial buf to clear */ + do_chip_reset ( mfdcr(CPC0_STRP0), + mfdcr(CPC0_STRP1) ); + } + break; + + case PVR_440GP_RC: + puts("GP Rev. C"); + break; + + case PVR_440GX_RA: + puts("GX Rev. A"); + break; + + case PVR_440GX_RB: + puts("GX Rev. B"); + break; + + case PVR_440GX_RC: + puts("GX Rev. C"); + break; + + case PVR_440GX_RF: + puts("GX Rev. F"); + break; + + case PVR_440EP_RA: + puts("EP Rev. A"); + break; + +#ifdef CONFIG_440EP + case PVR_440EP_RB: /* 440EP rev B and 440GR rev A have same PVR */ + puts("EP Rev. B"); + break; + + case PVR_440EP_RC: /* 440EP rev C and 440GR rev B have same PVR */ + puts("EP Rev. C"); + break; +#endif /* CONFIG_440EP */ + +#ifdef CONFIG_440GR + case PVR_440GR_RA: /* 440EP rev B and 440GR rev A have same PVR */ + puts("GR Rev. A"); + break; + + case PVR_440GR_RB: /* 440EP rev C and 440GR rev B have same PVR */ + puts("GR Rev. B"); + break; +#endif /* CONFIG_440GR */ +#endif /* CONFIG_440 */ + +#ifdef CONFIG_440EPX + case PVR_440EPX1_RA: /* 440EPx rev A and 440GRx rev A have same PVR */ + puts("EPx Rev. A"); + strcpy(addstr, "Security/Kasumi support"); + break; + + case PVR_440EPX2_RA: /* 440EPx rev A and 440GRx rev A have same PVR */ + puts("EPx Rev. A"); + strcpy(addstr, "No Security/Kasumi support"); + break; +#endif /* CONFIG_440EPX */ + +#ifdef CONFIG_440GRX + case PVR_440GRX1_RA: /* 440EPx rev A and 440GRx rev A have same PVR */ + puts("GRx Rev. A"); + strcpy(addstr, "Security/Kasumi support"); + break; + + case PVR_440GRX2_RA: /* 440EPx rev A and 440GRx rev A have same PVR */ + puts("GRx Rev. A"); + strcpy(addstr, "No Security/Kasumi support"); + break; +#endif /* CONFIG_440GRX */ + + case PVR_440SP_6_RAB: + puts("SP Rev. A/B"); + strcpy(addstr, "RAID 6 support"); + break; + + case PVR_440SP_RAB: + puts("SP Rev. A/B"); + strcpy(addstr, "No RAID 6 support"); + break; + + case PVR_440SP_6_RC: + puts("SP Rev. C"); + strcpy(addstr, "RAID 6 support"); + break; + + case PVR_440SP_RC: + puts("SP Rev. C"); + strcpy(addstr, "No RAID 6 support"); + break; + + case PVR_440SPe_6_RA: + puts("SPe Rev. A"); + strcpy(addstr, "RAID 6 support"); + break; + + case PVR_440SPe_RA: + puts("SPe Rev. A"); + strcpy(addstr, "No RAID 6 support"); + break; + + case PVR_440SPe_6_RB: + puts("SPe Rev. B"); + strcpy(addstr, "RAID 6 support"); + break; + + case PVR_440SPe_RB: + puts("SPe Rev. B"); + strcpy(addstr, "No RAID 6 support"); + break; + +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) + case PVR_460EX_RA: + puts("EX Rev. A"); + strcpy(addstr, "No Security/Kasumi support"); + break; + + case PVR_460EX_SE_RA: + puts("EX Rev. A"); + strcpy(addstr, "Security/Kasumi support"); + break; + + case PVR_460EX_RB: + puts("EX Rev. B"); + mfsdr(SDR0_ECID3, reg); + if (reg & 0x00100000) + strcpy(addstr, "No Security/Kasumi support"); + else + strcpy(addstr, "Security/Kasumi support"); + break; + + case PVR_460GT_RA: + puts("GT Rev. A"); + strcpy(addstr, "No Security/Kasumi support"); + break; + + case PVR_460GT_SE_RA: + puts("GT Rev. A"); + strcpy(addstr, "Security/Kasumi support"); + break; + + case PVR_460GT_RB: + puts("GT Rev. B"); + mfsdr(SDR0_ECID3, reg); + if (reg & 0x00100000) + strcpy(addstr, "No Security/Kasumi support"); + else + strcpy(addstr, "Security/Kasumi support"); + break; +#endif + + case PVR_460SX_RA: + puts("SX Rev. A"); + strcpy(addstr, "Security support"); + break; + + case PVR_460SX_RA_V1: + puts("SX Rev. A"); + strcpy(addstr, "No Security support"); + break; + + case PVR_460GX_RA: + puts("GX Rev. A"); + strcpy(addstr, "Security support"); + break; + + case PVR_460GX_RA_V1: + puts("GX Rev. A"); + strcpy(addstr, "No Security support"); + break; + + case PVR_VIRTEX5: + puts("x5 VIRTEX5"); + break; + + default: + printf (" UNKNOWN (PVR=%08x)", pvr); + break; + } + + printf (" at %s MHz (PLB=%lu OPB=%lu EBC=%lu", + strmhz(buf, clock), + sys_info.freqPLB / 1000000, + get_OPB_freq() / 1000000, + sys_info.freqEBC / 1000000); +#if defined(CONFIG_PCI) && \ + (defined(CONFIG_440EP) || defined(CONFIG_440EPX) || \ + defined(CONFIG_440GR) || defined(CONFIG_440GRX)) + printf(" PCI=%lu MHz", sys_info.freqPCI / 1000000); +#endif + printf(")\n"); + + if (addstr[0] != 0) + printf(" %s\n", addstr); + +#if defined(I2C_BOOTROM) + printf (" I2C boot EEPROM %sabled\n", i2c_bootrom_enabled() ? "en" : "dis"); +#endif /* I2C_BOOTROM */ +#if defined(SDR0_PINSTP_SHIFT) + printf (" Bootstrap Option %c - ", bootstrap_char[bootstrap_option()]); + printf ("Boot ROM Location %s", bootstrap_str[bootstrap_option()]); +#ifdef CONFIG_NAND_U_BOOT + puts(", booting from NAND"); +#endif /* CONFIG_NAND_U_BOOT */ + putc('\n'); +#endif /* SDR0_PINSTP_SHIFT */ + +#if defined(CONFIG_PCI) && !defined(CONFIG_405EX) + printf (" Internal PCI arbiter %sabled", pci_arbiter_enabled() ? "en" : "dis"); +#endif + +#if defined(CONFIG_PCI) && defined(PCI_ASYNC) + if (pci_async_enabled()) { + printf (", PCI async ext clock used"); + } else { + printf (", PCI sync clock at %lu MHz", + sys_info.freqPLB / sys_info.pllPciDiv / 1000000); + } +#endif + +#if defined(CONFIG_PCI) && !defined(CONFIG_405EX) + putc('\n'); +#endif + +#if defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) + printf (" 16 kB I-Cache 16 kB D-Cache"); +#elif defined(CONFIG_440) + printf (" 32 kB I-Cache 32 kB D-Cache"); +#else + printf (" 16 kB I-Cache %d kB D-Cache", + ((pvr | 0x00000001) == PVR_405GPR_RB) ? 16 : 8); +#endif +#endif /* !defined(CONFIG_IOP480) */ + +#if defined(CONFIG_IOP480) + printf ("PLX IOP480 (PVR=%08x)", pvr); + printf (" at %s MHz:", strmhz(buf, clock)); + printf (" %u kB I-Cache", 4); + printf (" %u kB D-Cache", 2); +#endif + +#endif /* !defined(CONFIG_405) */ + + putc ('\n'); + + return 0; +} + +int ppc440spe_revB() { + unsigned int pvr; + + pvr = get_pvr(); + if ((pvr == PVR_440SPe_6_RB) || (pvr == PVR_440SPe_RB)) + return 1; + else + return 0; +} + +/* ------------------------------------------------------------------------- */ + +int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ +#if defined(CONFIG_BOARD_RESET) + board_reset(); +#else +#if defined(CONFIG_SYS_4xx_RESET_TYPE) + mtspr(SPRN_DBCR0, CONFIG_SYS_4xx_RESET_TYPE << 28); +#else + /* + * Initiate system reset in debug control register DBCR + */ + mtspr(SPRN_DBCR0, 0x30000000); +#endif /* defined(CONFIG_SYS_4xx_RESET_TYPE) */ +#endif /* defined(CONFIG_BOARD_RESET) */ + + return 1; +} + + +/* + * Get timebase clock frequency + */ +unsigned long get_tbclk (void) +{ +#if !defined(CONFIG_IOP480) + sys_info_t sys_info; + + get_sys_info(&sys_info); + return (sys_info.freqProcessor); +#else + return (66000000); +#endif + +} + + +#if defined(CONFIG_WATCHDOG) +void watchdog_reset(void) +{ + int re_enable = disable_interrupts(); + reset_4xx_watchdog(); + if (re_enable) enable_interrupts(); +} + +void reset_4xx_watchdog(void) +{ + /* + * Clear TSR(WIS) bit + */ + mtspr(SPRN_TSR, 0x40000000); +} +#endif /* CONFIG_WATCHDOG */ + +/* + * Initializes on-chip ethernet controllers. + * to override, implement board_eth_init() + */ +int cpu_eth_init(bd_t *bis) +{ +#if defined(CONFIG_PPC4xx_EMAC) + ppc_4xx_eth_initialize(bis); +#endif + return 0; +} diff --git a/arch/ppc/cpu/ppc4xx/cpu_init.c b/arch/ppc/cpu/ppc4xx/cpu_init.c new file mode 100644 index 0000000..8a6e545 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/cpu_init.c @@ -0,0 +1,456 @@ +/* + * (C) Copyright 2000-2007 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <watchdog.h> +#include <ppc4xx_enet.h> +#include <asm/processor.h> +#include <asm/gpio.h> +#include <ppc4xx.h> + +#if defined(CONFIG_405GP) || defined(CONFIG_405EP) +DECLARE_GLOBAL_DATA_PTR; +#endif + +#ifndef CONFIG_SYS_PLL_RECONFIG +#define CONFIG_SYS_PLL_RECONFIG 0 +#endif + +void reconfigure_pll(u32 new_cpu_freq) +{ +#if defined(CONFIG_440EPX) + int reset_needed = 0; + u32 reg, temp; + u32 prbdv0, target_prbdv0, /* CLK_PRIMBD */ + fwdva, target_fwdva, fwdvb, target_fwdvb, /* CLK_PLLD */ + fbdv, target_fbdv, lfbdv, target_lfbdv, + perdv0, target_perdv0, /* CLK_PERD */ + spcid0, target_spcid0; /* CLK_SPCID */ + + /* Reconfigure clocks if necessary. + * See PPC440EPx User's Manual, sections 8.2 and 14 */ + if (new_cpu_freq == 667) { + target_prbdv0 = 2; + target_fwdva = 2; + target_fwdvb = 4; + target_fbdv = 20; + target_lfbdv = 1; + target_perdv0 = 4; + target_spcid0 = 4; + + mfcpr(CPR0_PRIMBD0, reg); + temp = (reg & PRBDV_MASK) >> 24; + prbdv0 = temp ? temp : 8; + if (prbdv0 != target_prbdv0) { + reg &= ~PRBDV_MASK; + reg |= ((target_prbdv0 == 8 ? 0 : target_prbdv0) << 24); + mtcpr(CPR0_PRIMBD0, reg); + reset_needed = 1; + } + + mfcpr(CPR0_PLLD, reg); + + temp = (reg & PLLD_FWDVA_MASK) >> 16; + fwdva = temp ? temp : 16; + + temp = (reg & PLLD_FWDVB_MASK) >> 8; + fwdvb = temp ? temp : 8; + + temp = (reg & PLLD_FBDV_MASK) >> 24; + fbdv = temp ? temp : 32; + + temp = (reg & PLLD_LFBDV_MASK); + lfbdv = temp ? temp : 64; + + if (fwdva != target_fwdva || fbdv != target_fbdv || lfbdv != target_lfbdv) { + reg &= ~(PLLD_FWDVA_MASK | PLLD_FWDVB_MASK | + PLLD_FBDV_MASK | PLLD_LFBDV_MASK); + reg |= ((target_fwdva == 16 ? 0 : target_fwdva) << 16) | + ((target_fwdvb == 8 ? 0 : target_fwdvb) << 8) | + ((target_fbdv == 32 ? 0 : target_fbdv) << 24) | + (target_lfbdv == 64 ? 0 : target_lfbdv); + mtcpr(CPR0_PLLD, reg); + reset_needed = 1; + } + + mfcpr(CPR0_PERD, reg); + perdv0 = (reg & CPR0_PERD_PERDV0_MASK) >> 24; + if (perdv0 != target_perdv0) { + reg &= ~CPR0_PERD_PERDV0_MASK; + reg |= (target_perdv0 << 24); + mtcpr(CPR0_PERD, reg); + reset_needed = 1; + } + + mfcpr(CPR0_SPCID, reg); + temp = (reg & CPR0_SPCID_SPCIDV0_MASK) >> 24; + spcid0 = temp ? temp : 4; + if (spcid0 != target_spcid0) { + reg &= ~CPR0_SPCID_SPCIDV0_MASK; + reg |= ((target_spcid0 == 4 ? 0 : target_spcid0) << 24); + mtcpr(CPR0_SPCID, reg); + reset_needed = 1; + } + } + + /* Get current value of FWDVA.*/ + mfcpr(CPR0_PLLD, reg); + temp = (reg & PLLD_FWDVA_MASK) >> 16; + + /* + * Check to see if FWDVA has been set to value of 1. if it has we must + * modify it. + */ + if (temp == 1) { + mfcpr(CPR0_PLLD, reg); + /* Get current value of fbdv. */ + temp = (reg & PLLD_FBDV_MASK) >> 24; + fbdv = temp ? temp : 32; + /* Get current value of lfbdv. */ + temp = (reg & PLLD_LFBDV_MASK); + lfbdv = temp ? temp : 64; + /* + * Load register that contains current boot strapping option. + */ + mfcpr(CPR0_ICFG, reg); + /* Shift strapping option into low 3 bits.*/ + reg = (reg >> 28); + + if ((reg == BOOT_STRAP_OPTION_A) || (reg == BOOT_STRAP_OPTION_B) || + (reg == BOOT_STRAP_OPTION_D) || (reg == BOOT_STRAP_OPTION_E)) { + /* + * Get current value of FWDVA. Assign current FWDVA to + * new FWDVB. + */ + mfcpr(CPR0_PLLD, reg); + target_fwdvb = (reg & PLLD_FWDVA_MASK) >> 16; + fwdvb = target_fwdvb ? target_fwdvb : 8; + /* + * Get current value of FWDVB. Assign current FWDVB to + * new FWDVA. + */ + target_fwdva = (reg & PLLD_FWDVB_MASK) >> 8; + fwdva = target_fwdva ? target_fwdva : 16; + /* + * Update CPR0_PLLD with switched FWDVA and FWDVB. + */ + reg &= ~(PLLD_FWDVA_MASK | PLLD_FWDVB_MASK | + PLLD_FBDV_MASK | PLLD_LFBDV_MASK); + reg |= ((fwdva == 16 ? 0 : fwdva) << 16) | + ((fwdvb == 8 ? 0 : fwdvb) << 8) | + ((fbdv == 32 ? 0 : fbdv) << 24) | + (lfbdv == 64 ? 0 : lfbdv); + mtcpr(CPR0_PLLD, reg); + /* Acknowledge that a reset is required. */ + reset_needed = 1; + } + } + + if (reset_needed) { + /* + * Set reload inhibit so configuration will persist across + * processor resets + */ + mfcpr(CPR0_ICFG, reg); + reg &= ~CPR0_ICFG_RLI_MASK; + reg |= 1 << 31; + mtcpr(CPR0_ICFG, reg); + + /* Reset processor if configuration changed */ + __asm__ __volatile__ ("sync; isync"); + mtspr(SPRN_DBCR0, 0x20000000); + } +#endif +} + +/* + * Breath some life into the CPU... + * + * Reconfigure PLL if necessary, + * set up the memory map, + * initialize a bunch of registers + */ +void +cpu_init_f (void) +{ +#if defined(CONFIG_WATCHDOG) || defined(CONFIG_440GX) || defined(CONFIG_460EX) + u32 val; +#endif + + reconfigure_pll(CONFIG_SYS_PLL_RECONFIG); + +#if (defined(CONFIG_405EP) || defined (CONFIG_405EX)) && !defined(CONFIG_SYS_4xx_GPIO_TABLE) + /* + * GPIO0 setup (select GPIO or alternate function) + */ +#if defined(CONFIG_SYS_GPIO0_OR) + out32(GPIO0_OR, CONFIG_SYS_GPIO0_OR); /* set initial state of output pins */ +#endif +#if defined(CONFIG_SYS_GPIO0_ODR) + out32(GPIO0_ODR, CONFIG_SYS_GPIO0_ODR); /* open-drain select */ +#endif + out32(GPIO0_OSRH, CONFIG_SYS_GPIO0_OSRH); /* output select */ + out32(GPIO0_OSRL, CONFIG_SYS_GPIO0_OSRL); + out32(GPIO0_ISR1H, CONFIG_SYS_GPIO0_ISR1H); /* input select */ + out32(GPIO0_ISR1L, CONFIG_SYS_GPIO0_ISR1L); + out32(GPIO0_TSRH, CONFIG_SYS_GPIO0_TSRH); /* three-state select */ + out32(GPIO0_TSRL, CONFIG_SYS_GPIO0_TSRL); +#if defined(CONFIG_SYS_GPIO0_ISR2H) + out32(GPIO0_ISR2H, CONFIG_SYS_GPIO0_ISR2H); + out32(GPIO0_ISR2L, CONFIG_SYS_GPIO0_ISR2L); +#endif +#if defined (CONFIG_SYS_GPIO0_TCR) + out32(GPIO0_TCR, CONFIG_SYS_GPIO0_TCR); /* enable output driver for outputs */ +#endif +#endif /* CONFIG_405EP ... && !CONFIG_SYS_4xx_GPIO_TABLE */ + +#if defined (CONFIG_405EP) + /* + * Set EMAC noise filter bits + */ + mtdcr(CPC0_EPCTL, CPC0_EPRCSR_E0NFE | CPC0_EPRCSR_E1NFE); +#endif /* CONFIG_405EP */ + +#if defined(CONFIG_SYS_4xx_GPIO_TABLE) + gpio_set_chip_configuration(); +#endif /* CONFIG_SYS_4xx_GPIO_TABLE */ + + /* + * External Bus Controller (EBC) Setup + */ +#if (defined(CONFIG_SYS_EBC_PB0AP) && defined(CONFIG_SYS_EBC_PB0CR)) +#if (defined(CONFIG_405GP) || defined(CONFIG_405CR) || \ + defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \ + defined(CONFIG_405EX) || defined(CONFIG_405)) + /* + * Move the next instructions into icache, since these modify the flash + * we are running from! + */ + asm volatile(" bl 0f" ::: "lr"); + asm volatile("0: mflr 3" ::: "r3"); + asm volatile(" addi 4, 0, 14" ::: "r4"); + asm volatile(" mtctr 4" ::: "ctr"); + asm volatile("1: icbt 0, 3"); + asm volatile(" addi 3, 3, 32" ::: "r3"); + asm volatile(" bdnz 1b" ::: "ctr", "cr0"); + asm volatile(" addis 3, 0, 0x0" ::: "r3"); + asm volatile(" ori 3, 3, 0xA000" ::: "r3"); + asm volatile(" mtctr 3" ::: "ctr"); + asm volatile("2: bdnz 2b" ::: "ctr", "cr0"); +#endif + + mtebc(PB0AP, CONFIG_SYS_EBC_PB0AP); + mtebc(PB0CR, CONFIG_SYS_EBC_PB0CR); +#endif + +#if (defined(CONFIG_SYS_EBC_PB1AP) && defined(CONFIG_SYS_EBC_PB1CR) && !(CONFIG_SYS_INIT_DCACHE_CS == 1)) + mtebc(PB1AP, CONFIG_SYS_EBC_PB1AP); + mtebc(PB1CR, CONFIG_SYS_EBC_PB1CR); +#endif + +#if (defined(CONFIG_SYS_EBC_PB2AP) && defined(CONFIG_SYS_EBC_PB2CR) && !(CONFIG_SYS_INIT_DCACHE_CS == 2)) + mtebc(PB2AP, CONFIG_SYS_EBC_PB2AP); + mtebc(PB2CR, CONFIG_SYS_EBC_PB2CR); +#endif + +#if (defined(CONFIG_SYS_EBC_PB3AP) && defined(CONFIG_SYS_EBC_PB3CR) && !(CONFIG_SYS_INIT_DCACHE_CS == 3)) + mtebc(PB3AP, CONFIG_SYS_EBC_PB3AP); + mtebc(PB3CR, CONFIG_SYS_EBC_PB3CR); +#endif + +#if (defined(CONFIG_SYS_EBC_PB4AP) && defined(CONFIG_SYS_EBC_PB4CR) && !(CONFIG_SYS_INIT_DCACHE_CS == 4)) + mtebc(PB4AP, CONFIG_SYS_EBC_PB4AP); + mtebc(PB4CR, CONFIG_SYS_EBC_PB4CR); +#endif + +#if (defined(CONFIG_SYS_EBC_PB5AP) && defined(CONFIG_SYS_EBC_PB5CR) && !(CONFIG_SYS_INIT_DCACHE_CS == 5)) + mtebc(PB5AP, CONFIG_SYS_EBC_PB5AP); + mtebc(PB5CR, CONFIG_SYS_EBC_PB5CR); +#endif + +#if (defined(CONFIG_SYS_EBC_PB6AP) && defined(CONFIG_SYS_EBC_PB6CR) && !(CONFIG_SYS_INIT_DCACHE_CS == 6)) + mtebc(PB6AP, CONFIG_SYS_EBC_PB6AP); + mtebc(PB6CR, CONFIG_SYS_EBC_PB6CR); +#endif + +#if (defined(CONFIG_SYS_EBC_PB7AP) && defined(CONFIG_SYS_EBC_PB7CR) && !(CONFIG_SYS_INIT_DCACHE_CS == 7)) + mtebc(PB7AP, CONFIG_SYS_EBC_PB7AP); + mtebc(PB7CR, CONFIG_SYS_EBC_PB7CR); +#endif + +#if defined (CONFIG_SYS_EBC_CFG) + mtebc(EBC0_CFG, CONFIG_SYS_EBC_CFG); +#endif + +#if defined(CONFIG_WATCHDOG) + val = mfspr(tcr); +#if defined(CONFIG_440EP) || defined(CONFIG_440GR) + val |= 0xb8000000; /* generate system reset after 1.34 seconds */ +#elif defined(CONFIG_440EPX) + val |= 0xb0000000; /* generate system reset after 1.34 seconds */ +#else + val |= 0xf0000000; /* generate system reset after 2.684 seconds */ +#endif +#if defined(CONFIG_SYS_4xx_RESET_TYPE) + val &= ~0x30000000; /* clear WRC bits */ + val |= CONFIG_SYS_4xx_RESET_TYPE << 28; /* set board specific WRC type */ +#endif + mtspr(tcr, val); + + val = mfspr(tsr); + val |= 0x80000000; /* enable watchdog timer */ + mtspr(tsr, val); + + reset_4xx_watchdog(); +#endif /* CONFIG_WATCHDOG */ + +#if defined(CONFIG_440GX) + /* Take the GX out of compatibility mode + * Travis Sawyer, 9 Mar 2004 + * NOTE: 440gx user manual inconsistency here + * Compatibility mode and Ethernet Clock select are not + * correct in the manual + */ + mfsdr(SDR0_MFR, val); + val &= ~0x10000000; + mtsdr(SDR0_MFR,val); +#endif /* CONFIG_440GX */ + +#if defined(CONFIG_460EX) + /* + * Set SDR0_AHB_CFG[A2P_INCR4] (bit 24) and + * clear SDR0_AHB_CFG[A2P_PROT2] (bit 25) for a new 460EX errata + * regarding concurrent use of AHB USB OTG, USB 2.0 host and SATA + */ + mfsdr(SDR0_AHB_CFG, val); + val |= 0x80; + val &= ~0x40; + mtsdr(SDR0_AHB_CFG, val); + mfsdr(SDR0_USB2HOST_CFG, val); + val &= ~0xf00; + val |= 0x400; + mtsdr(SDR0_USB2HOST_CFG, val); +#endif /* CONFIG_460EX */ + +#if defined(CONFIG_405EX) || \ + defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ + defined(CONFIG_460SX) + /* + * Set PLB4 arbiter (Segment 0 and 1) to 4 deep pipeline read + */ + mtdcr(PLB0_ACR, (mfdcr(PLB0_ACR) & ~PLB0_ACR_RDP_MASK) | + PLB0_ACR_RDP_4DEEP); + mtdcr(PLB1_ACR, (mfdcr(PLB1_ACR) & ~PLB1_ACR_RDP_MASK) | + PLB1_ACR_RDP_4DEEP); +#endif /* CONFIG_440SP/SPE || CONFIG_460EX/GT || CONFIG_405EX */ +} + +/* + * initialize higher level parts of CPU like time base and timers + */ +int cpu_init_r (void) +{ +#if defined(CONFIG_405GP) + uint pvr = get_pvr(); + + /* + * Set edge conditioning circuitry on PPC405GPr + * for compatibility to existing PPC405GP designs. + */ + if ((pvr & 0xfffffff0) == (PVR_405GPR_RB & 0xfffffff0)) { + mtdcr(CPC0_ECR, 0x60606000); + } +#endif /* defined(CONFIG_405GP) */ + + return 0; +} + +#if defined(CONFIG_PCI) && \ + (defined(CONFIG_440EP) || defined(CONFIG_440EPX) || \ + defined(CONFIG_440GR) || defined(CONFIG_440GRX)) +/* + * 440EP(x)/GR(x) PCI async/sync clocking restriction: + * + * In asynchronous PCI mode, the synchronous PCI clock must meet + * certain requirements. The following equation describes the + * relationship that must be maintained between the asynchronous PCI + * clock and synchronous PCI clock. Select an appropriate PCI:PLB + * ratio to maintain the relationship: + * + * AsyncPCIClk - 1MHz <= SyncPCIclock <= (2 * AsyncPCIClk) - 1MHz + */ +static int ppc4xx_pci_sync_clock_ok(u32 sync, u32 async) +{ + if (((async - 1000000) > sync) || (sync > ((2 * async) - 1000000))) + return 0; + else + return 1; +} + +int ppc4xx_pci_sync_clock_config(u32 async) +{ + sys_info_t sys_info; + u32 sync; + int div; + u32 reg; + u32 spcid_val[] = { + CPR0_SPCID_SPCIDV0_DIV1, CPR0_SPCID_SPCIDV0_DIV2, + CPR0_SPCID_SPCIDV0_DIV3, CPR0_SPCID_SPCIDV0_DIV4 }; + + get_sys_info(&sys_info); + sync = sys_info.freqPCI; + + /* + * First check if the equation above is met + */ + if (!ppc4xx_pci_sync_clock_ok(sync, async)) { + /* + * Reconfigure PCI sync clock to meet the equation. + * Start with highest possible PCI sync frequency + * (divider 1). + */ + for (div = 1; div <= 4; div++) { + sync = sys_info.freqPLB / div; + if (ppc4xx_pci_sync_clock_ok(sync, async)) + break; + } + + if (div <= 4) { + mtcpr(CPR0_SPCID, spcid_val[div]); + + mfcpr(CPR0_ICFG, reg); + reg |= CPR0_ICFG_RLI_MASK; + mtcpr(CPR0_ICFG, reg); + + /* do chip reset */ + mtspr(SPRN_DBCR0, 0x20000000); + } else { + /* Impossible to configure the PCI sync clock */ + return -1; + } + } + + return 0; +} +#endif diff --git a/arch/ppc/cpu/ppc4xx/dcr.S b/arch/ppc/cpu/ppc4xx/dcr.S new file mode 100644 index 0000000..93465a3 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/dcr.S @@ -0,0 +1,198 @@ +/* + * (C) Copyright 2001 + * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <config.h> + +#if defined(CONFIG_4xx) && defined(CONFIG_CMD_SETGETDCR) + +#include <ppc4xx.h> + +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#define _ASMLANGUAGE + +/***************************************************************************** + * + * XXX - DANGER + * These routines make use of self modifying code. DO NOT CALL THEM + * UNTIL THEY ARE RELOCATED TO RAM. Additionally, I do not + * recommend them for use in anything other than an interactive + * debugging environment. This is mainly due to performance reasons. + * + ****************************************************************************/ + +/* + * static void _create_MFDCR(unsigned short dcrn) + * + * Builds a 'mfdcr' instruction for get_dcr + * function. + */ + .section ".text" + .align 2 + .type _create_MFDCR,@function +_create_MFDCR: + /* + * Build up a 'mfdcr' instruction formatted as follows: + * + * OPCD | RT | DCRF | XO | CR | + * ---------------|--------------|--------------|----| + * 0 5 | 6 10 | 11 20 | 21 30 | 31 | + * | | DCRN | | | + * 31 | %r3 | (5..9|0..4) | 323 | 0 | + * + * Where: + * OPCD = opcode - 31 + * RT = destination register - %r3 return register + * DCRF = DCRN # with upper and lower halves swapped + * XO = extended opcode - 323 + * CR = CR[CR0] NOT undefined - 0 + */ + rlwinm r0, r3, 27, 27, 31 /* OPCD = 31 */ + rlwinm r3, r3, 5, 22, 26 + or r3, r3, r0 + slwi r3, r3, 10 + oris r3, r3, 0x3e30 /* RT = %r3 */ + ori r3, r3, 323 /* XO = 323 */ + slwi r3, r3, 1 /* CR = 0 */ + + mflr r4 + stw r3, 0(r4) /* Store instr in get_dcr() */ + dcbst r0, r4 /* Make sure val is written out */ + sync /* Wait for write to complete */ + icbi r0, r4 /* Make sure old instr is dumped */ + isync /* Wait for icbi to complete */ + + blr +.Lfe1: .size _create_MFDCR,.Lfe1-_create_MFDCR +/* end _create_MFDCR() */ + +/* + * static void _create_MTDCR(unsigned short dcrn, unsigned long value) + * + * Builds a 'mtdcr' instruction for set_dcr + * function. + */ + .section ".text" + .align 2 + .type _create_MTDCR,@function +_create_MTDCR: + /* + * Build up a 'mtdcr' instruction formatted as follows: + * + * OPCD | RS | DCRF | XO | CR | + * ---------------|--------------|--------------|----| + * 0 5 | 6 10 | 11 20 | 21 30 | 31 | + * | | DCRN | | | + * 31 | %r3 | (5..9|0..4) | 451 | 0 | + * + * Where: + * OPCD = opcode - 31 + * RS = source register - %r4 + * DCRF = dest. DCRN # with upper and lower halves swapped + * XO = extended opcode - 451 + * CR = CR[CR0] NOT undefined - 0 + */ + rlwinm r0, r3, 27, 27, 31 /* OPCD = 31 */ + rlwinm r3, r3, 5, 22, 26 + or r3, r3, r0 + slwi r3, r3, 10 + oris r3, r3, 0x3e40 /* RS = %r4 */ + ori r3, r3, 451 /* XO = 451 */ + slwi r3, r3, 1 /* CR = 0 */ + + mflr r5 + stw r3, 0(r5) /* Store instr in set_dcr() */ + dcbst r0, r5 /* Make sure val is written out */ + sync /* Wait for write to complete */ + icbi r0, r5 /* Make sure old instr is dumped */ + isync /* Wait for icbi to complete */ + + blr +.Lfe2: .size _create_MTDCR,.Lfe2-_create_MTDCR +/* end _create_MTDCR() */ + + +/* + * unsigned long get_dcr(unsigned short dcrn) + * + * Return a given DCR's value. + */ + /* */ + /* XXX - This is self modifying code, hence */ + /* it is in the data section. */ + /* */ + .section ".data" + .align 2 + .globl get_dcr + .type get_dcr,@function +get_dcr: + mflr r0 /* Get link register */ + stwu r1, -32(r1) /* Save back chain and move SP */ + stw r0, +36(r1) /* Save link register */ + + bl _create_MFDCR /* Build following instruction */ + /* XXX - we build this instuction up on the fly. */ + .long 0 /* Get DCR's value */ + + lwz r0, +36(r1) /* Get saved link register */ + mtlr r0 /* Restore link register */ + addi r1, r1, +32 /* Remove frame from stack */ + blr /* Return to calling function */ +.Lfe3: .size get_dcr,.Lfe3-get_dcr +/* end get_dcr() */ + + +/* + * unsigned void set_dcr(unsigned short dcrn, unsigned long value) + * + * Return a given DCR's value. + */ + /* + * XXX - This is self modifying code, hence + * it is in the data section. + */ + .section ".data" + .align 2 + .globl set_dcr + .type set_dcr,@function +set_dcr: + mflr r0 /* Get link register */ + stwu r1, -32(r1) /* Save back chain and move SP */ + stw r0, +36(r1) /* Save link register */ + + bl _create_MTDCR /* Build following instruction */ + /* XXX - we build this instuction up on the fly. */ + .long 0 /* Set DCR's value */ + + lwz r0, +36(r1) /* Get saved link register */ + mtlr r0 /* Restore link register */ + addi r1, r1, +32 /* Remove frame from stack */ + blr /* Return to calling function */ +.Lfe4: .size set_dcr,.Lfe4-set_dcr +/* end set_dcr() */ +#endif diff --git a/arch/ppc/cpu/ppc4xx/denali_data_eye.c b/arch/ppc/cpu/ppc4xx/denali_data_eye.c new file mode 100644 index 0000000..15a9b4f --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/denali_data_eye.c @@ -0,0 +1,389 @@ +/* + * arch/ppc/cpu/ppc4xx/denali_data_eye.c + * Extracted from board/amcc/sequoia/sdram.c by Larry Johnson <lrj@acm.org>. + * + * (C) Copyright 2006 + * Sylvie Gohl, AMCC/IBM, gohl.sylvie@fr.ibm.com + * Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol@fr.ibm.com + * Thierry Roman, AMCC/IBM, thierry_roman@fr.ibm.com + * Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com + * Robert Snyder, AMCC/IBM, rob.snyder@fr.ibm.com + * + * (C) Copyright 2006-2007 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* define DEBUG for debugging output (obviously ;-)) */ +#if 0 +#define DEBUG +#endif + +#include <common.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <ppc4xx.h> + +#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) +/*-----------------------------------------------------------------------------+ + * denali_wait_for_dlllock. + +----------------------------------------------------------------------------*/ +int denali_wait_for_dlllock(void) +{ + u32 val; + int wait; + + /* -----------------------------------------------------------+ + * Wait for the DCC master delay line to finish calibration + * ----------------------------------------------------------*/ + for (wait = 0; wait != 0xffff; ++wait) { + mfsdram(DDR0_17, val); + if (DDR0_17_DLLLOCKREG_DECODE(val)) { + /* dlllockreg bit on */ + return 0; + } + } + debug("0x%04x: DDR0_17 Value (dlllockreg bit): 0x%08x\n", wait, val); + debug("Waiting for dlllockreg bit to raise\n"); + return -1; +} + +#if defined(CONFIG_DDR_DATA_EYE) +#define DDR_DCR_BASE 0x10 +#define ddrcfga (DDR_DCR_BASE+0x0) /* DDR configuration address reg */ +#define ddrcfgd (DDR_DCR_BASE+0x1) /* DDR configuration data reg */ + +/*-----------------------------------------------------------------------------+ + * wait_for_dram_init_complete. + +----------------------------------------------------------------------------*/ +static int wait_for_dram_init_complete(void) +{ + unsigned long val; + int wait = 0; + + /* --------------------------------------------------------------+ + * Wait for 'DRAM initialization complete' bit in status register + * -------------------------------------------------------------*/ + mtdcr(ddrcfga, DDR0_00); + + while (wait != 0xffff) { + val = mfdcr(ddrcfgd); + if ((val & DDR0_00_INT_STATUS_BIT6) == DDR0_00_INT_STATUS_BIT6) + /* 'DRAM initialization complete' bit */ + return 0; + else + wait++; + } + debug("DRAM initialization complete bit in status register did not " + "rise\n"); + return -1; +} + +#define NUM_TRIES 64 +#define NUM_READS 10 + +/*-----------------------------------------------------------------------------+ + * denali_core_search_data_eye. + +----------------------------------------------------------------------------*/ +void denali_core_search_data_eye(void) +{ + int k, j; + u32 val; + u32 wr_dqs_shift, dqs_out_shift, dll_dqs_delay_X; + u32 max_passing_cases = 0, wr_dqs_shift_with_max_passing_cases = 0; + u32 passing_cases = 0, dll_dqs_delay_X_sw_val = 0; + u32 dll_dqs_delay_X_start_window = 0, dll_dqs_delay_X_end_window = 0; + volatile u32 *ram_pointer; + u32 test[NUM_TRIES] = { + 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, + 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, + 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, + 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, + 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, + 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, + 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, + 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, + 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, + 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, + 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, + 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, + 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, + 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, + 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55 + }; + + ram_pointer = (volatile u32 *)(CONFIG_SYS_SDRAM_BASE); + + for (wr_dqs_shift = 64; wr_dqs_shift < 96; wr_dqs_shift++) { + /* for (wr_dqs_shift=1; wr_dqs_shift<96; wr_dqs_shift++) { */ + + /* -----------------------------------------------------------+ + * De-assert 'start' parameter. + * ----------------------------------------------------------*/ + mtdcr(ddrcfga, DDR0_02); + val = (mfdcr(ddrcfgd) & ~DDR0_02_START_MASK) | + DDR0_02_START_OFF; + mtdcr(ddrcfgd, val); + + /* -----------------------------------------------------------+ + * Set 'wr_dqs_shift' + * ----------------------------------------------------------*/ + mtdcr(ddrcfga, DDR0_09); + val = (mfdcr(ddrcfgd) & ~DDR0_09_WR_DQS_SHIFT_MASK) | + DDR0_09_WR_DQS_SHIFT_ENCODE(wr_dqs_shift); + mtdcr(ddrcfgd, val); + + /* -----------------------------------------------------------+ + * Set 'dqs_out_shift' = wr_dqs_shift + 32 + * ----------------------------------------------------------*/ + dqs_out_shift = wr_dqs_shift + 32; + mtdcr(ddrcfga, DDR0_22); + val = (mfdcr(ddrcfgd) & ~DDR0_22_DQS_OUT_SHIFT_MASK) | + DDR0_22_DQS_OUT_SHIFT_ENCODE(dqs_out_shift); + mtdcr(ddrcfgd, val); + + passing_cases = 0; + + for (dll_dqs_delay_X = 1; dll_dqs_delay_X < 64; + dll_dqs_delay_X++) { + /* for (dll_dqs_delay_X=1; dll_dqs_delay_X<128; + dll_dqs_delay_X++) { */ + /* -----------------------------------------------------------+ + * Set 'dll_dqs_delay_X'. + * ----------------------------------------------------------*/ + /* dll_dqs_delay_0 */ + mtdcr(ddrcfga, DDR0_17); + val = (mfdcr(ddrcfgd) & ~DDR0_17_DLL_DQS_DELAY_0_MASK) + | DDR0_17_DLL_DQS_DELAY_0_ENCODE(dll_dqs_delay_X); + mtdcr(ddrcfgd, val); + /* dll_dqs_delay_1 to dll_dqs_delay_4 */ + mtdcr(ddrcfga, DDR0_18); + val = (mfdcr(ddrcfgd) & ~DDR0_18_DLL_DQS_DELAY_X_MASK) + | DDR0_18_DLL_DQS_DELAY_4_ENCODE(dll_dqs_delay_X) + | DDR0_18_DLL_DQS_DELAY_3_ENCODE(dll_dqs_delay_X) + | DDR0_18_DLL_DQS_DELAY_2_ENCODE(dll_dqs_delay_X) + | DDR0_18_DLL_DQS_DELAY_1_ENCODE(dll_dqs_delay_X); + mtdcr(ddrcfgd, val); + /* dll_dqs_delay_5 to dll_dqs_delay_8 */ + mtdcr(ddrcfga, DDR0_19); + val = (mfdcr(ddrcfgd) & ~DDR0_19_DLL_DQS_DELAY_X_MASK) + | DDR0_19_DLL_DQS_DELAY_8_ENCODE(dll_dqs_delay_X) + | DDR0_19_DLL_DQS_DELAY_7_ENCODE(dll_dqs_delay_X) + | DDR0_19_DLL_DQS_DELAY_6_ENCODE(dll_dqs_delay_X) + | DDR0_19_DLL_DQS_DELAY_5_ENCODE(dll_dqs_delay_X); + mtdcr(ddrcfgd, val); + /* clear any ECC errors */ + mtdcr(ddrcfga, DDR0_00); + mtdcr(ddrcfgd, + mfdcr(ddrcfgd) | DDR0_00_INT_ACK_ENCODE(0x3C)); + + sync(); + eieio(); + + /* -----------------------------------------------------------+ + * Assert 'start' parameter. + * ----------------------------------------------------------*/ + mtdcr(ddrcfga, DDR0_02); + val = (mfdcr(ddrcfgd) & ~DDR0_02_START_MASK) | + DDR0_02_START_ON; + mtdcr(ddrcfgd, val); + + sync(); + eieio(); + + /* -----------------------------------------------------------+ + * Wait for the DCC master delay line to finish calibration + * ----------------------------------------------------------*/ + if (denali_wait_for_dlllock() != 0) { + printf("dll lock did not occur !!!\n"); + printf("denali_core_search_data_eye!!!\n"); + printf("wr_dqs_shift = %d - dll_dqs_delay_X = " + "%d\n", wr_dqs_shift, dll_dqs_delay_X); + hang(); + } + sync(); + eieio(); + + if (wait_for_dram_init_complete() != 0) { + printf("dram init complete did not occur!!!\n"); + printf("denali_core_search_data_eye!!!\n"); + printf("wr_dqs_shift = %d - dll_dqs_delay_X = " + "%d\n", wr_dqs_shift, dll_dqs_delay_X); + hang(); + } + udelay(100); /* wait 100us to ensure init is really completed !!! */ + + /* write values */ + for (j = 0; j < NUM_TRIES; j++) { + ram_pointer[j] = test[j]; + + /* clear any cache at ram location */ + __asm__("dcbf 0,%0": :"r"(&ram_pointer[j])); + } + + /* read values back */ + for (j = 0; j < NUM_TRIES; j++) { + for (k = 0; k < NUM_READS; k++) { + /* clear any cache at ram location */ + __asm__("dcbf 0,%0": :"r"(&ram_pointer + [j])); + + if (ram_pointer[j] != test[j]) + break; + } + + /* read error */ + if (k != NUM_READS) + break; + } + + /* See if the dll_dqs_delay_X value passed. */ + mtdcr(ddrcfga, DDR0_00); + if (j < NUM_TRIES + || (DDR0_00_INT_STATUS_DECODE(mfdcr(ddrcfgd)) & + 0x3F)) { + /* Failed */ + passing_cases = 0; + /* break; */ + } else { + /* Passed */ + if (passing_cases == 0) + dll_dqs_delay_X_sw_val = + dll_dqs_delay_X; + passing_cases++; + if (passing_cases >= max_passing_cases) { + max_passing_cases = passing_cases; + wr_dqs_shift_with_max_passing_cases = + wr_dqs_shift; + dll_dqs_delay_X_start_window = + dll_dqs_delay_X_sw_val; + dll_dqs_delay_X_end_window = + dll_dqs_delay_X; + } + } + + /* -----------------------------------------------------------+ + * De-assert 'start' parameter. + * ----------------------------------------------------------*/ + mtdcr(ddrcfga, DDR0_02); + val = (mfdcr(ddrcfgd) & ~DDR0_02_START_MASK) | + DDR0_02_START_OFF; + mtdcr(ddrcfgd, val); + } /* for (dll_dqs_delay_X=0; dll_dqs_delay_X<128; dll_dqs_delay_X++) */ + } /* for (wr_dqs_shift=0; wr_dqs_shift<96; wr_dqs_shift++) */ + + /* -----------------------------------------------------------+ + * Largest passing window is now detected. + * ----------------------------------------------------------*/ + + /* Compute dll_dqs_delay_X value */ + dll_dqs_delay_X = (dll_dqs_delay_X_end_window + + dll_dqs_delay_X_start_window) / 2; + wr_dqs_shift = wr_dqs_shift_with_max_passing_cases; + + debug("DQS calibration - Window detected:\n"); + debug("max_passing_cases = %d\n", max_passing_cases); + debug("wr_dqs_shift = %d\n", wr_dqs_shift); + debug("dll_dqs_delay_X = %d\n", dll_dqs_delay_X); + debug("dll_dqs_delay_X window = %d - %d\n", + dll_dqs_delay_X_start_window, dll_dqs_delay_X_end_window); + + /* -----------------------------------------------------------+ + * De-assert 'start' parameter. + * ----------------------------------------------------------*/ + mtdcr(ddrcfga, DDR0_02); + val = (mfdcr(ddrcfgd) & ~DDR0_02_START_MASK) | DDR0_02_START_OFF; + mtdcr(ddrcfgd, val); + + /* -----------------------------------------------------------+ + * Set 'wr_dqs_shift' + * ----------------------------------------------------------*/ + mtdcr(ddrcfga, DDR0_09); + val = (mfdcr(ddrcfgd) & ~DDR0_09_WR_DQS_SHIFT_MASK) + | DDR0_09_WR_DQS_SHIFT_ENCODE(wr_dqs_shift); + mtdcr(ddrcfgd, val); + debug("DDR0_09=0x%08lx\n", val); + + /* -----------------------------------------------------------+ + * Set 'dqs_out_shift' = wr_dqs_shift + 32 + * ----------------------------------------------------------*/ + dqs_out_shift = wr_dqs_shift + 32; + mtdcr(ddrcfga, DDR0_22); + val = (mfdcr(ddrcfgd) & ~DDR0_22_DQS_OUT_SHIFT_MASK) + | DDR0_22_DQS_OUT_SHIFT_ENCODE(dqs_out_shift); + mtdcr(ddrcfgd, val); + debug("DDR0_22=0x%08lx\n", val); + + /* -----------------------------------------------------------+ + * Set 'dll_dqs_delay_X'. + * ----------------------------------------------------------*/ + /* dll_dqs_delay_0 */ + mtdcr(ddrcfga, DDR0_17); + val = (mfdcr(ddrcfgd) & ~DDR0_17_DLL_DQS_DELAY_0_MASK) + | DDR0_17_DLL_DQS_DELAY_0_ENCODE(dll_dqs_delay_X); + mtdcr(ddrcfgd, val); + debug("DDR0_17=0x%08lx\n", val); + + /* dll_dqs_delay_1 to dll_dqs_delay_4 */ + mtdcr(ddrcfga, DDR0_18); + val = (mfdcr(ddrcfgd) & ~DDR0_18_DLL_DQS_DELAY_X_MASK) + | DDR0_18_DLL_DQS_DELAY_4_ENCODE(dll_dqs_delay_X) + | DDR0_18_DLL_DQS_DELAY_3_ENCODE(dll_dqs_delay_X) + | DDR0_18_DLL_DQS_DELAY_2_ENCODE(dll_dqs_delay_X) + | DDR0_18_DLL_DQS_DELAY_1_ENCODE(dll_dqs_delay_X); + mtdcr(ddrcfgd, val); + debug("DDR0_18=0x%08lx\n", val); + + /* dll_dqs_delay_5 to dll_dqs_delay_8 */ + mtdcr(ddrcfga, DDR0_19); + val = (mfdcr(ddrcfgd) & ~DDR0_19_DLL_DQS_DELAY_X_MASK) + | DDR0_19_DLL_DQS_DELAY_8_ENCODE(dll_dqs_delay_X) + | DDR0_19_DLL_DQS_DELAY_7_ENCODE(dll_dqs_delay_X) + | DDR0_19_DLL_DQS_DELAY_6_ENCODE(dll_dqs_delay_X) + | DDR0_19_DLL_DQS_DELAY_5_ENCODE(dll_dqs_delay_X); + mtdcr(ddrcfgd, val); + debug("DDR0_19=0x%08lx\n", val); + + /* -----------------------------------------------------------+ + * Assert 'start' parameter. + * ----------------------------------------------------------*/ + mtdcr(ddrcfga, DDR0_02); + val = (mfdcr(ddrcfgd) & ~DDR0_02_START_MASK) | DDR0_02_START_ON; + mtdcr(ddrcfgd, val); + + sync(); + eieio(); + + /* -----------------------------------------------------------+ + * Wait for the DCC master delay line to finish calibration + * ----------------------------------------------------------*/ + if (denali_wait_for_dlllock() != 0) { + printf("dll lock did not occur !!!\n"); + hang(); + } + sync(); + eieio(); + + if (wait_for_dram_init_complete() != 0) { + printf("dram init complete did not occur !!!\n"); + hang(); + } + udelay(100); /* wait 100us to ensure init is really completed !!! */ +} +#endif /* defined(CONFIG_DDR_DATA_EYE) */ +#endif /* defined(CONFIG_440EPX) || defined(CONFIG_440GRX) */ diff --git a/arch/ppc/cpu/ppc4xx/denali_spd_ddr2.c b/arch/ppc/cpu/ppc4xx/denali_spd_ddr2.c new file mode 100644 index 0000000..72f76cd --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/denali_spd_ddr2.c @@ -0,0 +1,1256 @@ +/* + * arch/ppc/cpu/ppc4xx/denali_spd_ddr2.c + * This SPD SDRAM detection code supports AMCC PPC44x CPUs with a Denali-core + * DDR2 controller, specifically the 440EPx/GRx. + * + * (C) Copyright 2007-2008 + * Larry Johnson, lrj@acm.org. + * + * Based primarily on arch/ppc/cpu/ppc4xx/4xx_spd_ddr2.c, which is... + * + * (C) Copyright 2007 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * COPYRIGHT AMCC CORPORATION 2004 + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +/* define DEBUG for debugging output (obviously ;-)) */ +#if 0 +#define DEBUG +#endif + +#include <common.h> +#include <command.h> +#include <ppc4xx.h> +#include <i2c.h> +#include <asm/io.h> +#include <asm/processor.h> +#include <asm/mmu.h> +#include <asm/cache.h> + +#if defined(CONFIG_SPD_EEPROM) && \ + (defined(CONFIG_440EPX) || defined(CONFIG_440GRX)) + +/*-----------------------------------------------------------------------------+ + * Defines + *-----------------------------------------------------------------------------*/ +#ifndef TRUE +#define TRUE 1 +#endif +#ifndef FALSE +#define FALSE 0 +#endif + +#define MAXDIMMS 2 +#define MAXRANKS 2 + +#define ONE_BILLION 1000000000 + +#define MULDIV64(m1, m2, d) (u32)(((u64)(m1) * (u64)(m2)) / (u64)(d)) + +#define DLL_DQS_DELAY 0x19 +#define DLL_DQS_BYPASS 0x0B +#define DQS_OUT_SHIFT 0x7F + +/* + * This DDR2 setup code can dynamically setup the TLB entries for the DDR2 memory + * region. Right now the cache should still be disabled in U-Boot because of the + * EMAC driver, that need it's buffer descriptor to be located in non cached + * memory. + * + * If at some time this restriction doesn't apply anymore, just define + * CONFIG_4xx_DCACHE in the board config file and this code should setup + * everything correctly. + */ +#if defined(CONFIG_4xx_DCACHE) +#define MY_TLB_WORD2_I_ENABLE 0 /* enable caching on SDRAM */ +#else +#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE /* disable caching on SDRAM */ +#endif + +/*-----------------------------------------------------------------------------+ + * Prototypes + *-----------------------------------------------------------------------------*/ +extern int denali_wait_for_dlllock(void); +extern void denali_core_search_data_eye(void); +extern void dcbz_area(u32 start_address, u32 num_bytes); + +/* + * Board-specific Platform code can reimplement spd_ddr_init_hang () if needed + */ +void __spd_ddr_init_hang(void) +{ + hang(); +} +void spd_ddr_init_hang(void) + __attribute__ ((weak, alias("__spd_ddr_init_hang"))); + +#if defined(DEBUG) +static void print_mcsr(void) +{ + printf("MCSR = 0x%08X\n", mfspr(SPRN_MCSR)); +} + +static void denali_sdram_register_dump(void) +{ + unsigned int sdram_data; + + printf("\n Register Dump:\n"); + mfsdram(DDR0_00, sdram_data); + printf(" DDR0_00 = 0x%08X", sdram_data); + mfsdram(DDR0_01, sdram_data); + printf(" DDR0_01 = 0x%08X\n", sdram_data); + mfsdram(DDR0_02, sdram_data); + printf(" DDR0_02 = 0x%08X", sdram_data); + mfsdram(DDR0_03, sdram_data); + printf(" DDR0_03 = 0x%08X\n", sdram_data); + mfsdram(DDR0_04, sdram_data); + printf(" DDR0_04 = 0x%08X", sdram_data); + mfsdram(DDR0_05, sdram_data); + printf(" DDR0_05 = 0x%08X\n", sdram_data); + mfsdram(DDR0_06, sdram_data); + printf(" DDR0_06 = 0x%08X", sdram_data); + mfsdram(DDR0_07, sdram_data); + printf(" DDR0_07 = 0x%08X\n", sdram_data); + mfsdram(DDR0_08, sdram_data); + printf(" DDR0_08 = 0x%08X", sdram_data); + mfsdram(DDR0_09, sdram_data); + printf(" DDR0_09 = 0x%08X\n", sdram_data); + mfsdram(DDR0_10, sdram_data); + printf(" DDR0_10 = 0x%08X", sdram_data); + mfsdram(DDR0_11, sdram_data); + printf(" DDR0_11 = 0x%08X\n", sdram_data); + mfsdram(DDR0_12, sdram_data); + printf(" DDR0_12 = 0x%08X", sdram_data); + mfsdram(DDR0_14, sdram_data); + printf(" DDR0_14 = 0x%08X\n", sdram_data); + mfsdram(DDR0_17, sdram_data); + printf(" DDR0_17 = 0x%08X", sdram_data); + mfsdram(DDR0_18, sdram_data); + printf(" DDR0_18 = 0x%08X\n", sdram_data); + mfsdram(DDR0_19, sdram_data); + printf(" DDR0_19 = 0x%08X", sdram_data); + mfsdram(DDR0_20, sdram_data); + printf(" DDR0_20 = 0x%08X\n", sdram_data); + mfsdram(DDR0_21, sdram_data); + printf(" DDR0_21 = 0x%08X", sdram_data); + mfsdram(DDR0_22, sdram_data); + printf(" DDR0_22 = 0x%08X\n", sdram_data); + mfsdram(DDR0_23, sdram_data); + printf(" DDR0_23 = 0x%08X", sdram_data); + mfsdram(DDR0_24, sdram_data); + printf(" DDR0_24 = 0x%08X\n", sdram_data); + mfsdram(DDR0_25, sdram_data); + printf(" DDR0_25 = 0x%08X", sdram_data); + mfsdram(DDR0_26, sdram_data); + printf(" DDR0_26 = 0x%08X\n", sdram_data); + mfsdram(DDR0_27, sdram_data); + printf(" DDR0_27 = 0x%08X", sdram_data); + mfsdram(DDR0_28, sdram_data); + printf(" DDR0_28 = 0x%08X\n", sdram_data); + mfsdram(DDR0_31, sdram_data); + printf(" DDR0_31 = 0x%08X", sdram_data); + mfsdram(DDR0_32, sdram_data); + printf(" DDR0_32 = 0x%08X\n", sdram_data); + mfsdram(DDR0_33, sdram_data); + printf(" DDR0_33 = 0x%08X", sdram_data); + mfsdram(DDR0_34, sdram_data); + printf(" DDR0_34 = 0x%08X\n", sdram_data); + mfsdram(DDR0_35, sdram_data); + printf(" DDR0_35 = 0x%08X", sdram_data); + mfsdram(DDR0_36, sdram_data); + printf(" DDR0_36 = 0x%08X\n", sdram_data); + mfsdram(DDR0_37, sdram_data); + printf(" DDR0_37 = 0x%08X", sdram_data); + mfsdram(DDR0_38, sdram_data); + printf(" DDR0_38 = 0x%08X\n", sdram_data); + mfsdram(DDR0_39, sdram_data); + printf(" DDR0_39 = 0x%08X", sdram_data); + mfsdram(DDR0_40, sdram_data); + printf(" DDR0_40 = 0x%08X\n", sdram_data); + mfsdram(DDR0_41, sdram_data); + printf(" DDR0_41 = 0x%08X", sdram_data); + mfsdram(DDR0_42, sdram_data); + printf(" DDR0_42 = 0x%08X\n", sdram_data); + mfsdram(DDR0_43, sdram_data); + printf(" DDR0_43 = 0x%08X", sdram_data); + mfsdram(DDR0_44, sdram_data); + printf(" DDR0_44 = 0x%08X\n", sdram_data); +} +#else +static inline void denali_sdram_register_dump(void) +{ +} + +inline static void print_mcsr(void) +{ +} +#endif /* defined(DEBUG) */ + +static int is_ecc_enabled(void) +{ + u32 val; + + mfsdram(DDR0_22, val); + return 0x3 == DDR0_22_CTRL_RAW_DECODE(val); +} + +static unsigned char spd_read(u8 chip, unsigned int addr) +{ + u8 data[2]; + + if (0 != i2c_probe(chip) || 0 != i2c_read(chip, addr, 1, data, 1)) { + debug("spd_read(0x%02X, 0x%02X) failed\n", chip, addr); + return 0; + } + debug("spd_read(0x%02X, 0x%02X) returned 0x%02X\n", + chip, addr, data[0]); + return data[0]; +} + +static unsigned long get_tcyc(unsigned char reg) +{ + /* + * Byte 9, et al: Cycle time for CAS Latency=X, is split into two + * nibbles: the higher order nibble (bits 4-7) designates the cycle time + * to a granularity of 1ns; the value presented by the lower order + * nibble (bits 0-3) has a granularity of .1ns and is added to the value + * designated by the higher nibble. In addition, four lines of the lower + * order nibble are assigned to support +.25, +.33, +.66, and +.75. + */ + + unsigned char subfield_b = reg & 0x0F; + + switch (subfield_b & 0x0F) { + case 0x0: + case 0x1: + case 0x2: + case 0x3: + case 0x4: + case 0x5: + case 0x6: + case 0x7: + case 0x8: + case 0x9: + return 1000 * (reg >> 4) + 100 * subfield_b; + case 0xA: + return 1000 * (reg >> 4) + 250; + case 0xB: + return 1000 * (reg >> 4) + 333; + case 0xC: + return 1000 * (reg >> 4) + 667; + case 0xD: + return 1000 * (reg >> 4) + 750; + } + return 0; +} + +/*------------------------------------------------------------------ + * Find the installed DIMMs, make sure that the are DDR2, and fill + * in the dimm_ranks array. Then dimm_ranks[dimm_num] > 0 iff the + * DIMM and dimm_num is present. + * Note: Because there are only two chip-select lines, it is assumed + * that a board with a single socket can support two ranks on that + * socket, while a board with two sockets can support only one rank + * on each socket. + *-----------------------------------------------------------------*/ +static void get_spd_info(unsigned long dimm_ranks[], + unsigned long *ranks, + unsigned char const iic0_dimm_addr[], + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long dimm_found = FALSE; + unsigned long const max_ranks_per_dimm = (1 == num_dimm_banks) ? 2 : 1; + unsigned char num_of_bytes; + unsigned char total_size; + + *ranks = 0; + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + num_of_bytes = 0; + total_size = 0; + + num_of_bytes = spd_read(iic0_dimm_addr[dimm_num], 0); + total_size = spd_read(iic0_dimm_addr[dimm_num], 1); + if ((num_of_bytes != 0) && (total_size != 0)) { + unsigned char const dimm_type = + spd_read(iic0_dimm_addr[dimm_num], 2); + + unsigned long ranks_on_dimm = + (spd_read(iic0_dimm_addr[dimm_num], 5) & 0x07) + 1; + + if (8 != dimm_type) { + switch (dimm_type) { + case 1: + printf("ERROR: Standard Fast Page Mode " + "DRAM DIMM"); + break; + case 2: + printf("ERROR: EDO DIMM"); + break; + case 3: + printf("ERROR: Pipelined Nibble DIMM"); + break; + case 4: + printf("ERROR: SDRAM DIMM"); + break; + case 5: + printf("ERROR: Multiplexed ROM DIMM"); + break; + case 6: + printf("ERROR: SGRAM DIMM"); + break; + case 7: + printf("ERROR: DDR1 DIMM"); + break; + default: + printf("ERROR: Unknown DIMM (type %d)", + (unsigned int)dimm_type); + break; + } + printf(" detected in slot %lu.\n", dimm_num); + printf("Only DDR2 SDRAM DIMMs are supported." + "\n"); + printf("Replace the module with a DDR2 DIMM." + "\n\n"); + spd_ddr_init_hang(); + } + dimm_found = TRUE; + debug("DIMM slot %lu: populated with %lu-rank DDR2 DIMM" + "\n", dimm_num, ranks_on_dimm); + if (ranks_on_dimm > max_ranks_per_dimm) { + printf("WARNING: DRAM DIMM in slot %lu has %lu " + "ranks.\n", dimm_num, ranks_on_dimm); + if (1 == max_ranks_per_dimm) { + printf("Only one rank will be used.\n"); + } else { + printf + ("Only two ranks will be used.\n"); + } + ranks_on_dimm = max_ranks_per_dimm; + } + dimm_ranks[dimm_num] = ranks_on_dimm; + *ranks += ranks_on_dimm; + } else { + dimm_ranks[dimm_num] = 0; + debug("DIMM slot %lu: Not populated\n", dimm_num); + } + } + if (dimm_found == FALSE) { + printf("ERROR: No memory installed.\n"); + printf("Install at least one DDR2 DIMM.\n\n"); + spd_ddr_init_hang(); + } + debug("Total number of ranks = %d\n", *ranks); +} + +/*------------------------------------------------------------------ + * For the memory DIMMs installed, this routine verifies that + * frequency previously calculated is supported. + *-----------------------------------------------------------------*/ +static void check_frequency(unsigned long *dimm_ranks, + unsigned char const iic0_dimm_addr[], + unsigned long num_dimm_banks, + unsigned long sdram_freq) +{ + unsigned long dimm_num; + unsigned long cycle_time; + unsigned long calc_cycle_time; + + /* + * calc_cycle_time is calculated from DDR frequency set by board/chip + * and is expressed in picoseconds to match the way DIMM cycle time is + * calculated below. + */ + calc_cycle_time = MULDIV64(ONE_BILLION, 1000, sdram_freq); + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_ranks[dimm_num]) { + cycle_time = + get_tcyc(spd_read(iic0_dimm_addr[dimm_num], 9)); + debug("cycle_time=%d ps\n", cycle_time); + + if (cycle_time > (calc_cycle_time + 10)) { + /* + * the provided sdram cycle_time is too small + * for the available DIMM cycle_time. The + * additionnal 10ps is here to accept a small + * incertainty. + */ + printf + ("ERROR: DRAM DIMM detected with cycle_time %d ps in " + "slot %d \n while calculated cycle time is %d ps.\n", + (unsigned int)cycle_time, + (unsigned int)dimm_num, + (unsigned int)calc_cycle_time); + printf + ("Replace the DIMM, or change DDR frequency via " + "strapping bits.\n\n"); + spd_ddr_init_hang(); + } + } + } +} + +/*------------------------------------------------------------------ + * This routine gets size information for the installed memory + * DIMMs. + *-----------------------------------------------------------------*/ +static void get_dimm_size(unsigned long dimm_ranks[], + unsigned char const iic0_dimm_addr[], + unsigned long num_dimm_banks, + unsigned long *const rows, + unsigned long *const banks, + unsigned long *const cols, unsigned long *const width) +{ + unsigned long dimm_num; + + *rows = 0; + *banks = 0; + *cols = 0; + *width = 0; + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_ranks[dimm_num]) { + unsigned long t; + + /* Rows */ + t = spd_read(iic0_dimm_addr[dimm_num], 3); + if (0 == *rows) { + *rows = t; + } else if (t != *rows) { + printf("ERROR: DRAM DIMM modules do not all " + "have the same number of rows.\n\n"); + spd_ddr_init_hang(); + } + /* Banks */ + t = spd_read(iic0_dimm_addr[dimm_num], 17); + if (0 == *banks) { + *banks = t; + } else if (t != *banks) { + printf("ERROR: DRAM DIMM modules do not all " + "have the same number of banks.\n\n"); + spd_ddr_init_hang(); + } + /* Columns */ + t = spd_read(iic0_dimm_addr[dimm_num], 4); + if (0 == *cols) { + *cols = t; + } else if (t != *cols) { + printf("ERROR: DRAM DIMM modules do not all " + "have the same number of columns.\n\n"); + spd_ddr_init_hang(); + } + /* Data width */ + t = spd_read(iic0_dimm_addr[dimm_num], 6); + if (0 == *width) { + *width = t; + } else if (t != *width) { + printf("ERROR: DRAM DIMM modules do not all " + "have the same data width.\n\n"); + spd_ddr_init_hang(); + } + } + } + debug("Number of rows = %d\n", *rows); + debug("Number of columns = %d\n", *cols); + debug("Number of banks = %d\n", *banks); + debug("Data width = %d\n", *width); + if (*rows > 14) { + printf("ERROR: DRAM DIMM modules have %lu address rows.\n", + *rows); + printf("Only modules with 14 or fewer rows are supported.\n\n"); + spd_ddr_init_hang(); + } + if (4 != *banks && 8 != *banks) { + printf("ERROR: DRAM DIMM modules have %lu banks.\n", *banks); + printf("Only modules with 4 or 8 banks are supported.\n\n"); + spd_ddr_init_hang(); + } + if (*cols > 12) { + printf("ERROR: DRAM DIMM modules have %lu address columns.\n", + *cols); + printf("Only modules with 12 or fewer columns are " + "supported.\n\n"); + spd_ddr_init_hang(); + } + if (32 != *width && 40 != *width && 64 != *width && 72 != *width) { + printf("ERROR: DRAM DIMM modules have a width of %lu bit.\n", + *width); + printf("Only modules with widths of 32, 40, 64, and 72 bits " + "are supported.\n\n"); + spd_ddr_init_hang(); + } +} + +/*------------------------------------------------------------------ + * Only 1.8V modules are supported. This routine verifies this. + *-----------------------------------------------------------------*/ +static void check_voltage_type(unsigned long dimm_ranks[], + unsigned char const iic0_dimm_addr[], + unsigned long num_dimm_banks) +{ + unsigned long dimm_num; + unsigned long voltage_type; + + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + if (dimm_ranks[dimm_num]) { + voltage_type = spd_read(iic0_dimm_addr[dimm_num], 8); + if (0x05 != voltage_type) { /* 1.8V for DDR2 */ + printf("ERROR: Slot %lu provides 1.8V for DDR2 " + "DIMMs.\n", dimm_num); + switch (voltage_type) { + case 0x00: + printf("This DIMM is 5.0 Volt/TTL.\n"); + break; + case 0x01: + printf("This DIMM is LVTTL.\n"); + break; + case 0x02: + printf("This DIMM is 1.5 Volt.\n"); + break; + case 0x03: + printf("This DIMM is 3.3 Volt/TTL.\n"); + break; + case 0x04: + printf("This DIMM is 2.5 Volt.\n"); + break; + default: + printf("This DIMM is an unknown " + "voltage.\n"); + break; + } + printf("Replace it with a 1.8V DDR2 DIMM.\n\n"); + spd_ddr_init_hang(); + } + } + } +} + +static void program_ddr0_03(unsigned long dimm_ranks[], + unsigned char const iic0_dimm_addr[], + unsigned long num_dimm_banks, + unsigned long sdram_freq, + unsigned long rows, unsigned long *cas_latency) +{ + unsigned long dimm_num; + unsigned long cas_index; + unsigned long cycle_2_0_clk; + unsigned long cycle_3_0_clk; + unsigned long cycle_4_0_clk; + unsigned long cycle_5_0_clk; + unsigned long max_2_0_tcyc_ps = 100; + unsigned long max_3_0_tcyc_ps = 100; + unsigned long max_4_0_tcyc_ps = 100; + unsigned long max_5_0_tcyc_ps = 100; + unsigned char cas_available = 0x3C; /* value for DDR2 */ + u32 ddr0_03 = DDR0_03_BSTLEN_ENCODE(0x2) | DDR0_03_INITAREF_ENCODE(0x2); + unsigned int const tcyc_addr[3] = { 9, 23, 25 }; + + /*------------------------------------------------------------------ + * Get the board configuration info. + *-----------------------------------------------------------------*/ + debug("sdram_freq = %d\n", sdram_freq); + + /*------------------------------------------------------------------ + * Handle the timing. We need to find the worst case timing of all + * the dimm modules installed. + *-----------------------------------------------------------------*/ + /* loop through all the DIMM slots on the board */ + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + /* If a dimm is installed in a particular slot ... */ + if (dimm_ranks[dimm_num]) { + unsigned char const cas_bit = + spd_read(iic0_dimm_addr[dimm_num], 18); + unsigned char cas_mask; + + cas_available &= cas_bit; + for (cas_mask = 0x80; cas_mask; cas_mask >>= 1) { + if (cas_bit & cas_mask) + break; + } + debug("cas_bit (SPD byte 18) = %02X, cas_mask = %02X\n", + cas_bit, cas_mask); + + for (cas_index = 0; cas_index < 3; + cas_mask >>= 1, cas_index++) { + unsigned long cycle_time_ps; + + if (!(cas_available & cas_mask)) { + continue; + } + cycle_time_ps = + get_tcyc(spd_read(iic0_dimm_addr[dimm_num], + tcyc_addr[cas_index])); + + debug("cas_index = %d: cycle_time_ps = %d\n", + cas_index, cycle_time_ps); + /* + * DDR2 devices use the following bitmask for CAS latency: + * Bit 7 6 5 4 3 2 1 0 + * TBD 6.0 5.0 4.0 3.0 2.0 TBD TBD + */ + switch (cas_mask) { + case 0x20: + max_5_0_tcyc_ps = + max(max_5_0_tcyc_ps, cycle_time_ps); + break; + case 0x10: + max_4_0_tcyc_ps = + max(max_4_0_tcyc_ps, cycle_time_ps); + break; + case 0x08: + max_3_0_tcyc_ps = + max(max_3_0_tcyc_ps, cycle_time_ps); + break; + case 0x04: + max_2_0_tcyc_ps = + max(max_2_0_tcyc_ps, cycle_time_ps); + break; + } + } + } + } + debug("cas_available (bit map) = 0x%02X\n", cas_available); + + /*------------------------------------------------------------------ + * Set the SDRAM mode, SDRAM_MMODE + *-----------------------------------------------------------------*/ + + /* add 10 here because of rounding problems */ + cycle_2_0_clk = MULDIV64(ONE_BILLION, 1000, max_2_0_tcyc_ps) + 10; + cycle_3_0_clk = MULDIV64(ONE_BILLION, 1000, max_3_0_tcyc_ps) + 10; + cycle_4_0_clk = MULDIV64(ONE_BILLION, 1000, max_4_0_tcyc_ps) + 10; + cycle_5_0_clk = MULDIV64(ONE_BILLION, 1000, max_5_0_tcyc_ps) + 10; + debug("cycle_2_0_clk = %d\n", cycle_2_0_clk); + debug("cycle_3_0_clk = %d\n", cycle_3_0_clk); + debug("cycle_4_0_clk = %d\n", cycle_4_0_clk); + debug("cycle_5_0_clk = %d\n", cycle_5_0_clk); + + if ((cas_available & 0x04) && (sdram_freq <= cycle_2_0_clk)) { + *cas_latency = 2; + ddr0_03 |= DDR0_03_CASLAT_ENCODE(0x2) | + DDR0_03_CASLAT_LIN_ENCODE(0x4); + } else if ((cas_available & 0x08) && (sdram_freq <= cycle_3_0_clk)) { + *cas_latency = 3; + ddr0_03 |= DDR0_03_CASLAT_ENCODE(0x3) | + DDR0_03_CASLAT_LIN_ENCODE(0x6); + } else if ((cas_available & 0x10) && (sdram_freq <= cycle_4_0_clk)) { + *cas_latency = 4; + ddr0_03 |= DDR0_03_CASLAT_ENCODE(0x4) | + DDR0_03_CASLAT_LIN_ENCODE(0x8); + } else if ((cas_available & 0x20) && (sdram_freq <= cycle_5_0_clk)) { + *cas_latency = 5; + ddr0_03 |= DDR0_03_CASLAT_ENCODE(0x5) | + DDR0_03_CASLAT_LIN_ENCODE(0xA); + } else { + printf("ERROR: Cannot find a supported CAS latency with the " + "installed DIMMs.\n"); + printf("Only DDR2 DIMMs with CAS latencies of 2.0, 3.0, 4.0, " + "and 5.0 are supported.\n"); + printf("Make sure the PLB speed is within the supported range " + "of the DIMMs.\n"); + printf("sdram_freq=%ld cycle2=%ld cycle3=%ld cycle4=%ld " + "cycle5=%ld\n\n", sdram_freq, cycle_2_0_clk, + cycle_3_0_clk, cycle_4_0_clk, cycle_5_0_clk); + spd_ddr_init_hang(); + } + debug("CAS latency = %d\n", *cas_latency); + mtsdram(DDR0_03, ddr0_03); +} + +static void program_ddr0_04(unsigned long dimm_ranks[], + unsigned char const iic0_dimm_addr[], + unsigned long num_dimm_banks, + unsigned long sdram_freq) +{ + unsigned long dimm_num; + unsigned long t_rc_ps = 0; + unsigned long t_rrd_ps = 0; + unsigned long t_rtp_ps = 0; + unsigned long t_rc_clk; + unsigned long t_rrd_clk; + unsigned long t_rtp_clk; + + /*------------------------------------------------------------------ + * Handle the timing. We need to find the worst case timing of all + * the dimm modules installed. + *-----------------------------------------------------------------*/ + /* loop through all the DIMM slots on the board */ + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + /* If a dimm is installed in a particular slot ... */ + if (dimm_ranks[dimm_num]) { + unsigned long ps; + + /* tRC */ + ps = 1000 * spd_read(iic0_dimm_addr[dimm_num], 41); + switch (spd_read(iic0_dimm_addr[dimm_num], 40) >> 4) { + case 0x1: + ps += 250; + break; + case 0x2: + ps += 333; + break; + case 0x3: + ps += 500; + break; + case 0x4: + ps += 667; + break; + case 0x5: + ps += 750; + break; + } + t_rc_ps = max(t_rc_ps, ps); + /* tRRD */ + ps = 250 * spd_read(iic0_dimm_addr[dimm_num], 28); + t_rrd_ps = max(t_rrd_ps, ps); + /* tRTP */ + ps = 250 * spd_read(iic0_dimm_addr[dimm_num], 38); + t_rtp_ps = max(t_rtp_ps, ps); + } + } + debug("t_rc_ps = %d\n", t_rc_ps); + t_rc_clk = (MULDIV64(sdram_freq, t_rc_ps, ONE_BILLION) + 999) / 1000; + debug("t_rrd_ps = %d\n", t_rrd_ps); + t_rrd_clk = (MULDIV64(sdram_freq, t_rrd_ps, ONE_BILLION) + 999) / 1000; + debug("t_rtp_ps = %d\n", t_rtp_ps); + t_rtp_clk = (MULDIV64(sdram_freq, t_rtp_ps, ONE_BILLION) + 999) / 1000; + mtsdram(DDR0_04, DDR0_04_TRC_ENCODE(t_rc_clk) | + DDR0_04_TRRD_ENCODE(t_rrd_clk) | + DDR0_04_TRTP_ENCODE(t_rtp_clk)); +} + +static void program_ddr0_05(unsigned long dimm_ranks[], + unsigned char const iic0_dimm_addr[], + unsigned long num_dimm_banks, + unsigned long sdram_freq) +{ + unsigned long dimm_num; + unsigned long t_rp_ps = 0; + unsigned long t_ras_ps = 0; + unsigned long t_rp_clk; + unsigned long t_ras_clk; + u32 ddr0_05 = DDR0_05_TMRD_ENCODE(0x2) | DDR0_05_TEMRS_ENCODE(0x2); + + /*------------------------------------------------------------------ + * Handle the timing. We need to find the worst case timing of all + * the dimm modules installed. + *-----------------------------------------------------------------*/ + /* loop through all the DIMM slots on the board */ + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + /* If a dimm is installed in a particular slot ... */ + if (dimm_ranks[dimm_num]) { + unsigned long ps; + + /* tRP */ + ps = 250 * spd_read(iic0_dimm_addr[dimm_num], 27); + t_rp_ps = max(t_rp_ps, ps); + /* tRAS */ + ps = 1000 * spd_read(iic0_dimm_addr[dimm_num], 30); + t_ras_ps = max(t_ras_ps, ps); + } + } + debug("t_rp_ps = %d\n", t_rp_ps); + t_rp_clk = (MULDIV64(sdram_freq, t_rp_ps, ONE_BILLION) + 999) / 1000; + debug("t_ras_ps = %d\n", t_ras_ps); + t_ras_clk = (MULDIV64(sdram_freq, t_ras_ps, ONE_BILLION) + 999) / 1000; + mtsdram(DDR0_05, ddr0_05 | DDR0_05_TRP_ENCODE(t_rp_clk) | + DDR0_05_TRAS_MIN_ENCODE(t_ras_clk)); +} + +static void program_ddr0_06(unsigned long dimm_ranks[], + unsigned char const iic0_dimm_addr[], + unsigned long num_dimm_banks, + unsigned long sdram_freq) +{ + unsigned long dimm_num; + unsigned char spd_40; + unsigned long t_wtr_ps = 0; + unsigned long t_rfc_ps = 0; + unsigned long t_wtr_clk; + unsigned long t_rfc_clk; + u32 ddr0_06 = + DDR0_06_WRITEINTERP_ENCODE(0x1) | DDR0_06_TDLL_ENCODE(200); + + /*------------------------------------------------------------------ + * Handle the timing. We need to find the worst case timing of all + * the dimm modules installed. + *-----------------------------------------------------------------*/ + /* loop through all the DIMM slots on the board */ + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + /* If a dimm is installed in a particular slot ... */ + if (dimm_ranks[dimm_num]) { + unsigned long ps; + + /* tWTR */ + ps = 250 * spd_read(iic0_dimm_addr[dimm_num], 37); + t_wtr_ps = max(t_wtr_ps, ps); + /* tRFC */ + ps = 1000 * spd_read(iic0_dimm_addr[dimm_num], 42); + spd_40 = spd_read(iic0_dimm_addr[dimm_num], 40); + ps += 256000 * (spd_40 & 0x01); + switch ((spd_40 & 0x0E) >> 1) { + case 0x1: + ps += 250; + break; + case 0x2: + ps += 333; + break; + case 0x3: + ps += 500; + break; + case 0x4: + ps += 667; + break; + case 0x5: + ps += 750; + break; + } + t_rfc_ps = max(t_rfc_ps, ps); + } + } + debug("t_wtr_ps = %d\n", t_wtr_ps); + t_wtr_clk = (MULDIV64(sdram_freq, t_wtr_ps, ONE_BILLION) + 999) / 1000; + debug("t_rfc_ps = %d\n", t_rfc_ps); + t_rfc_clk = (MULDIV64(sdram_freq, t_rfc_ps, ONE_BILLION) + 999) / 1000; + mtsdram(DDR0_06, ddr0_06 | DDR0_06_TWTR_ENCODE(t_wtr_clk) | + DDR0_06_TRFC_ENCODE(t_rfc_clk)); +} + +static void program_ddr0_10(unsigned long dimm_ranks[], unsigned long ranks) +{ + unsigned long csmap; + + if (2 == ranks) { + /* Both chip selects in use */ + csmap = 0x03; + } else { + /* One chip select in use */ + csmap = (1 == dimm_ranks[0]) ? 0x1 : 0x2; + } + mtsdram(DDR0_10, DDR0_10_WRITE_MODEREG_ENCODE(0x0) | + DDR0_10_CS_MAP_ENCODE(csmap) | + DDR0_10_OCD_ADJUST_PUP_CS_0_ENCODE(0)); +} + +static void program_ddr0_11(unsigned long sdram_freq) +{ + unsigned long const t_xsnr_ps = 200000; /* 200 ns */ + unsigned long t_xsnr_clk; + + debug("t_xsnr_ps = %d\n", t_xsnr_ps); + t_xsnr_clk = + (MULDIV64(sdram_freq, t_xsnr_ps, ONE_BILLION) + 999) / 1000; + mtsdram(DDR0_11, DDR0_11_SREFRESH_ENCODE(0) | + DDR0_11_TXSNR_ENCODE(t_xsnr_clk) | DDR0_11_TXSR_ENCODE(200)); +} + +static void program_ddr0_22(unsigned long dimm_ranks[], + unsigned char const iic0_dimm_addr[], + unsigned long num_dimm_banks, unsigned long width) +{ +#if defined(CONFIG_DDR_ECC) + unsigned long dimm_num; + unsigned long ecc_available = width >= 64; + u32 ddr0_22 = DDR0_22_DQS_OUT_SHIFT_BYPASS_ENCODE(0x26) | + DDR0_22_DQS_OUT_SHIFT_ENCODE(DQS_OUT_SHIFT) | + DDR0_22_DLL_DQS_BYPASS_8_ENCODE(DLL_DQS_BYPASS); + + /* loop through all the DIMM slots on the board */ + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + /* If a dimm is installed in a particular slot ... */ + if (dimm_ranks[dimm_num]) { + /* Check for ECC */ + if (0 == (spd_read(iic0_dimm_addr[dimm_num], 11) & + 0x02)) { + ecc_available = FALSE; + } + } + } + if (ecc_available) { + debug("ECC found on all DIMMs present\n"); + mtsdram(DDR0_22, ddr0_22 | DDR0_22_CTRL_RAW_ENCODE(0x3)); + } else { + debug("ECC not found on some or all DIMMs present\n"); + mtsdram(DDR0_22, ddr0_22 | DDR0_22_CTRL_RAW_ENCODE(0x0)); + } +#else + mtsdram(DDR0_22, DDR0_22_CTRL_RAW_ENCODE(0x0) | + DDR0_22_DQS_OUT_SHIFT_BYPASS_ENCODE(0x26) | + DDR0_22_DQS_OUT_SHIFT_ENCODE(DQS_OUT_SHIFT) | + DDR0_22_DLL_DQS_BYPASS_8_ENCODE(DLL_DQS_BYPASS)); +#endif /* defined(CONFIG_DDR_ECC) */ +} + +static void program_ddr0_24(unsigned long ranks) +{ + u32 ddr0_24 = DDR0_24_RTT_PAD_TERMINATION_ENCODE(0x1) | /* 75 ohm */ + DDR0_24_ODT_RD_MAP_CS1_ENCODE(0x0); + + if (2 == ranks) { + /* Both chip selects in use */ + ddr0_24 |= DDR0_24_ODT_WR_MAP_CS1_ENCODE(0x1) | + DDR0_24_ODT_WR_MAP_CS0_ENCODE(0x2); + } else { + /* One chip select in use */ + /* One of the two fields added to ddr0_24 is a "don't care" */ + ddr0_24 |= DDR0_24_ODT_WR_MAP_CS1_ENCODE(0x2) | + DDR0_24_ODT_WR_MAP_CS0_ENCODE(0x1); + } + mtsdram(DDR0_24, ddr0_24); +} + +static void program_ddr0_26(unsigned long sdram_freq) +{ + unsigned long const t_ref_ps = 7800000; /* 7.8 us. refresh */ + /* TODO: check definition of tRAS_MAX */ + unsigned long const t_ras_max_ps = 9 * t_ref_ps; + unsigned long t_ras_max_clk; + unsigned long t_ref_clk; + + /* Round down t_ras_max_clk and t_ref_clk */ + debug("t_ras_max_ps = %d\n", t_ras_max_ps); + t_ras_max_clk = MULDIV64(sdram_freq, t_ras_max_ps, ONE_BILLION) / 1000; + debug("t_ref_ps = %d\n", t_ref_ps); + t_ref_clk = MULDIV64(sdram_freq, t_ref_ps, ONE_BILLION) / 1000; + mtsdram(DDR0_26, DDR0_26_TRAS_MAX_ENCODE(t_ras_max_clk) | + DDR0_26_TREF_ENCODE(t_ref_clk)); +} + +static void program_ddr0_27(unsigned long sdram_freq) +{ + unsigned long const t_init_ps = 200000000; /* 200 us. init */ + unsigned long t_init_clk; + + debug("t_init_ps = %d\n", t_init_ps); + t_init_clk = + (MULDIV64(sdram_freq, t_init_ps, ONE_BILLION) + 999) / 1000; + mtsdram(DDR0_27, DDR0_27_EMRS_DATA_ENCODE(0x0000) | + DDR0_27_TINIT_ENCODE(t_init_clk)); +} + +static void program_ddr0_43(unsigned long dimm_ranks[], + unsigned char const iic0_dimm_addr[], + unsigned long num_dimm_banks, + unsigned long sdram_freq, + unsigned long cols, unsigned long banks) +{ + unsigned long dimm_num; + unsigned long t_wr_ps = 0; + unsigned long t_wr_clk; + u32 ddr0_43 = DDR0_43_APREBIT_ENCODE(10) | + DDR0_43_COLUMN_SIZE_ENCODE(12 - cols) | + DDR0_43_EIGHT_BANK_MODE_ENCODE(8 == banks ? 1 : 0); + + /*------------------------------------------------------------------ + * Handle the timing. We need to find the worst case timing of all + * the dimm modules installed. + *-----------------------------------------------------------------*/ + /* loop through all the DIMM slots on the board */ + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + /* If a dimm is installed in a particular slot ... */ + if (dimm_ranks[dimm_num]) { + unsigned long ps; + + ps = 250 * spd_read(iic0_dimm_addr[dimm_num], 36); + t_wr_ps = max(t_wr_ps, ps); + } + } + debug("t_wr_ps = %d\n", t_wr_ps); + t_wr_clk = (MULDIV64(sdram_freq, t_wr_ps, ONE_BILLION) + 999) / 1000; + mtsdram(DDR0_43, ddr0_43 | DDR0_43_TWR_ENCODE(t_wr_clk)); +} + +static void program_ddr0_44(unsigned long dimm_ranks[], + unsigned char const iic0_dimm_addr[], + unsigned long num_dimm_banks, + unsigned long sdram_freq) +{ + unsigned long dimm_num; + unsigned long t_rcd_ps = 0; + unsigned long t_rcd_clk; + + /*------------------------------------------------------------------ + * Handle the timing. We need to find the worst case timing of all + * the dimm modules installed. + *-----------------------------------------------------------------*/ + /* loop through all the DIMM slots on the board */ + for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) { + /* If a dimm is installed in a particular slot ... */ + if (dimm_ranks[dimm_num]) { + unsigned long ps; + + ps = 250 * spd_read(iic0_dimm_addr[dimm_num], 29); + t_rcd_ps = max(t_rcd_ps, ps); + } + } + debug("t_rcd_ps = %d\n", t_rcd_ps); + t_rcd_clk = (MULDIV64(sdram_freq, t_rcd_ps, ONE_BILLION) + 999) / 1000; + mtsdram(DDR0_44, DDR0_44_TRCD_ENCODE(t_rcd_clk)); +} + +/*-----------------------------------------------------------------------------+ + * initdram. Initializes the 440EPx/GPx DDR SDRAM controller. + * Note: This routine runs from flash with a stack set up in the chip's + * sram space. It is important that the routine does not require .sbss, .bss or + * .data sections. It also cannot call routines that require these sections. + *-----------------------------------------------------------------------------*/ +/*----------------------------------------------------------------------------- + * Function: initdram + * Description: Configures SDRAM memory banks for DDR operation. + * Auto Memory Configuration option reads the DDR SDRAM EEPROMs + * via the IIC bus and then configures the DDR SDRAM memory + * banks appropriately. If Auto Memory Configuration is + * not used, it is assumed that no DIMM is plugged + *-----------------------------------------------------------------------------*/ +phys_size_t initdram(int board_type) +{ + unsigned char const iic0_dimm_addr[] = SPD_EEPROM_ADDRESS; + unsigned long dimm_ranks[MAXDIMMS]; + unsigned long ranks; + unsigned long rows; + unsigned long banks; + unsigned long cols; + unsigned long width; + unsigned long const sdram_freq = get_bus_freq(0); + unsigned long const num_dimm_banks = sizeof(iic0_dimm_addr); /* on board dimm banks */ + unsigned long cas_latency = 0; /* to quiet initialization warning */ + unsigned long dram_size; + + debug("\nEntering initdram()\n"); + + /*------------------------------------------------------------------ + * Stop the DDR-SDRAM controller. + *-----------------------------------------------------------------*/ + mtsdram(DDR0_02, DDR0_02_START_ENCODE(0)); + + /* + * Make sure I2C controller is initialized + * before continuing. + */ + /* switch to correct I2C bus */ + I2C_SET_BUS(CONFIG_SYS_SPD_BUS_NUM); + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + + /*------------------------------------------------------------------ + * Clear out the serial presence detect buffers. + * Perform IIC reads from the dimm. Fill in the spds. + * Check to see if the dimm slots are populated + *-----------------------------------------------------------------*/ + get_spd_info(dimm_ranks, &ranks, iic0_dimm_addr, num_dimm_banks); + + /*------------------------------------------------------------------ + * Check the frequency supported for the dimms plugged. + *-----------------------------------------------------------------*/ + check_frequency(dimm_ranks, iic0_dimm_addr, num_dimm_banks, sdram_freq); + + /*------------------------------------------------------------------ + * Check and get size information. + *-----------------------------------------------------------------*/ + get_dimm_size(dimm_ranks, iic0_dimm_addr, num_dimm_banks, &rows, &banks, + &cols, &width); + + /*------------------------------------------------------------------ + * Check the voltage type for the dimms plugged. + *-----------------------------------------------------------------*/ + check_voltage_type(dimm_ranks, iic0_dimm_addr, num_dimm_banks); + + /*------------------------------------------------------------------ + * Program registers for SDRAM controller. + *-----------------------------------------------------------------*/ + mtsdram(DDR0_00, DDR0_00_DLL_INCREMENT_ENCODE(0x19) | + DDR0_00_DLL_START_POINT_DECODE(0x0A)); + + mtsdram(DDR0_01, DDR0_01_PLB0_DB_CS_LOWER_ENCODE(0x01) | + DDR0_01_PLB0_DB_CS_UPPER_ENCODE(0x00) | + DDR0_01_INT_MASK_ENCODE(0xFF)); + + program_ddr0_03(dimm_ranks, iic0_dimm_addr, num_dimm_banks, sdram_freq, + rows, &cas_latency); + + program_ddr0_04(dimm_ranks, iic0_dimm_addr, num_dimm_banks, sdram_freq); + + program_ddr0_05(dimm_ranks, iic0_dimm_addr, num_dimm_banks, sdram_freq); + + program_ddr0_06(dimm_ranks, iic0_dimm_addr, num_dimm_banks, sdram_freq); + + /* + * TODO: tFAW not found in SPD. Value of 13 taken from Sequoia + * board SDRAM, but may be overly conservative. + */ + mtsdram(DDR0_07, DDR0_07_NO_CMD_INIT_ENCODE(0) | + DDR0_07_TFAW_ENCODE(13) | + DDR0_07_AUTO_REFRESH_MODE_ENCODE(1) | + DDR0_07_AREFRESH_ENCODE(0)); + + mtsdram(DDR0_08, DDR0_08_WRLAT_ENCODE(cas_latency - 1) | + DDR0_08_TCPD_ENCODE(200) | DDR0_08_DQS_N_EN_ENCODE(0) | + DDR0_08_DDRII_ENCODE(1)); + + mtsdram(DDR0_09, DDR0_09_OCD_ADJUST_PDN_CS_0_ENCODE(0x00) | + DDR0_09_RTT_0_ENCODE(0x1) | + DDR0_09_WR_DQS_SHIFT_BYPASS_ENCODE(0x1D) | + DDR0_09_WR_DQS_SHIFT_ENCODE(DQS_OUT_SHIFT - 0x20)); + + program_ddr0_10(dimm_ranks, ranks); + + program_ddr0_11(sdram_freq); + + mtsdram(DDR0_12, DDR0_12_TCKE_ENCODE(3)); + + mtsdram(DDR0_14, DDR0_14_DLL_BYPASS_MODE_ENCODE(0) | + DDR0_14_REDUC_ENCODE(width <= 40 ? 1 : 0) | + DDR0_14_REG_DIMM_ENABLE_ENCODE(0)); + + mtsdram(DDR0_17, DDR0_17_DLL_DQS_DELAY_0_ENCODE(DLL_DQS_DELAY)); + + mtsdram(DDR0_18, DDR0_18_DLL_DQS_DELAY_4_ENCODE(DLL_DQS_DELAY) | + DDR0_18_DLL_DQS_DELAY_3_ENCODE(DLL_DQS_DELAY) | + DDR0_18_DLL_DQS_DELAY_2_ENCODE(DLL_DQS_DELAY) | + DDR0_18_DLL_DQS_DELAY_1_ENCODE(DLL_DQS_DELAY)); + + mtsdram(DDR0_19, DDR0_19_DLL_DQS_DELAY_8_ENCODE(DLL_DQS_DELAY) | + DDR0_19_DLL_DQS_DELAY_7_ENCODE(DLL_DQS_DELAY) | + DDR0_19_DLL_DQS_DELAY_6_ENCODE(DLL_DQS_DELAY) | + DDR0_19_DLL_DQS_DELAY_5_ENCODE(DLL_DQS_DELAY)); + + mtsdram(DDR0_20, DDR0_20_DLL_DQS_BYPASS_3_ENCODE(DLL_DQS_BYPASS) | + DDR0_20_DLL_DQS_BYPASS_2_ENCODE(DLL_DQS_BYPASS) | + DDR0_20_DLL_DQS_BYPASS_1_ENCODE(DLL_DQS_BYPASS) | + DDR0_20_DLL_DQS_BYPASS_0_ENCODE(DLL_DQS_BYPASS)); + + mtsdram(DDR0_21, DDR0_21_DLL_DQS_BYPASS_7_ENCODE(DLL_DQS_BYPASS) | + DDR0_21_DLL_DQS_BYPASS_6_ENCODE(DLL_DQS_BYPASS) | + DDR0_21_DLL_DQS_BYPASS_5_ENCODE(DLL_DQS_BYPASS) | + DDR0_21_DLL_DQS_BYPASS_4_ENCODE(DLL_DQS_BYPASS)); + + program_ddr0_22(dimm_ranks, iic0_dimm_addr, num_dimm_banks, width); + + mtsdram(DDR0_23, DDR0_23_ODT_RD_MAP_CS0_ENCODE(0x0) | + DDR0_23_FWC_ENCODE(0)); + + program_ddr0_24(ranks); + + program_ddr0_26(sdram_freq); + + program_ddr0_27(sdram_freq); + + mtsdram(DDR0_28, DDR0_28_EMRS3_DATA_ENCODE(0x0000) | + DDR0_28_EMRS2_DATA_ENCODE(0x0000)); + + mtsdram(DDR0_31, DDR0_31_XOR_CHECK_BITS_ENCODE(0x0000)); + + mtsdram(DDR0_42, DDR0_42_ADDR_PINS_ENCODE(14 - rows) | + DDR0_42_CASLAT_LIN_GATE_ENCODE(2 * cas_latency)); + + program_ddr0_43(dimm_ranks, iic0_dimm_addr, num_dimm_banks, sdram_freq, + cols, banks); + + program_ddr0_44(dimm_ranks, iic0_dimm_addr, num_dimm_banks, sdram_freq); + + denali_sdram_register_dump(); + + dram_size = (width >= 64) ? 8 : 4; + dram_size *= 1 << cols; + dram_size *= banks; + dram_size *= 1 << rows; + dram_size *= ranks; + debug("dram_size = %lu\n", dram_size); + + /* Start the SDRAM controler */ + mtsdram(DDR0_02, DDR0_02_START_ENCODE(1)); + denali_wait_for_dlllock(); + +#if defined(CONFIG_DDR_DATA_EYE) + /* + * Map the first 1 MiB of memory in the TLB, and perform the data eye + * search. + */ + program_tlb(0, CONFIG_SYS_SDRAM_BASE, TLB_1MB_SIZE, TLB_WORD2_I_ENABLE); + denali_core_search_data_eye(); + denali_sdram_register_dump(); + remove_tlb(CONFIG_SYS_SDRAM_BASE, TLB_1MB_SIZE); +#endif + +#if defined(CONFIG_ZERO_SDRAM) || defined(CONFIG_DDR_ECC) + program_tlb(0, CONFIG_SYS_SDRAM_BASE, dram_size, 0); + sync(); + /* Zero the memory */ + debug("Zeroing SDRAM..."); +#if defined(CONFIG_SYS_MEM_TOP_HIDE) + dcbz_area(CONFIG_SYS_SDRAM_BASE, dram_size - CONFIG_SYS_MEM_TOP_HIDE); +#else +#error Please define CONFIG_SYS_MEM_TOP_HIDE (see README) in your board config file +#endif + /* Write modified dcache lines back to memory */ + clean_dcache_range(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_SDRAM_BASE + dram_size - CONFIG_SYS_MEM_TOP_HIDE); + debug("Completed\n"); + sync(); + remove_tlb(CONFIG_SYS_SDRAM_BASE, dram_size); + +#if defined(CONFIG_DDR_ECC) + /* + * If ECC is enabled, clear and enable interrupts + */ + if (is_ecc_enabled()) { + u32 val; + + sync(); + /* Clear error status */ + mfsdram(DDR0_00, val); + mtsdram(DDR0_00, val | DDR0_00_INT_ACK_ALL); + /* Set 'int_mask' parameter to functionnal value */ + mfsdram(DDR0_01, val); + mtsdram(DDR0_01, (val & ~DDR0_01_INT_MASK_MASK) | + DDR0_01_INT_MASK_ALL_OFF); +#if defined(CONFIG_DDR_DATA_EYE) + /* + * Running denali_core_search_data_eye() when ECC is enabled + * causes non-ECC machine checks. This clears them. + */ + print_mcsr(); + mtspr(SPRN_MCSR, mfspr(SPRN_MCSR)); + print_mcsr(); +#endif + sync(); + } +#endif /* defined(CONFIG_DDR_ECC) */ +#endif /* defined(CONFIG_ZERO_SDRAM) || defined(CONFIG_DDR_ECC) */ + + program_tlb(0, CONFIG_SYS_SDRAM_BASE, dram_size, MY_TLB_WORD2_I_ENABLE); + return dram_size; +} + +void board_add_ram_info(int use_default) +{ + u32 val; + + printf(" (ECC"); + if (!is_ecc_enabled()) { + printf(" not"); + } + printf(" enabled, %ld MHz", (2 * get_bus_freq(0)) / 1000000); + + mfsdram(DDR0_03, val); + printf(", CL%d)", DDR0_03_CASLAT_LIN_DECODE(val) >> 1); +} +#endif /* CONFIG_SPD_EEPROM */ diff --git a/arch/ppc/cpu/ppc4xx/ecc.c b/arch/ppc/cpu/ppc4xx/ecc.c new file mode 100644 index 0000000..f105605 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/ecc.c @@ -0,0 +1,185 @@ +/* + * Copyright (c) 2008 Nuovation System Designs, LLC + * Grant Erickson <gerickson@nuovations.com> + * + * (C) Copyright 2005-2009 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * (C) Copyright 2002 + * Jun Gu, Artesyn Technology, jung@artesyncp.com + * + * (C) Copyright 2001 + * Bill Hunter, Wave 7 Optics, williamhunter@attbi.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will abe useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Description: + * This file implements generic DRAM ECC initialization for + * PowerPC processors using a SDRAM DDR/DDR2 controller, + * including the 405EX(r), 440GP/GX/EP/GR, 440SP(E), and + * 460EX/GT. + */ + +#include <common.h> +#include <ppc4xx.h> +#include <ppc_asm.tmpl> +#include <ppc_defs.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/mmu.h> +#include <asm/cache.h> + +#include "ecc.h" + +#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR) || \ + defined(CONFIG_SDRAM_PPC4xx_IBM_DDR2) +#if defined(CONFIG_DDR_ECC) || defined(CONFIG_SDRAM_ECC) + +#if defined(CONFIG_405EX) +/* + * Currently only 405EX uses 16bit data bus width as an alternative + * option to 32bit data width (SDRAM0_MCOPT1_WDTH) + */ +#define SDRAM_DATA_ALT_WIDTH 2 +#else +#define SDRAM_DATA_ALT_WIDTH 8 +#endif + +static void wait_ddr_idle(void) +{ + u32 val; + + do { + mfsdram(SDRAM_MCSTAT, val); + } while ((val & SDRAM_MCSTAT_IDLE_MASK) == SDRAM_MCSTAT_IDLE_NOT); +} + +static void program_ecc_addr(unsigned long start_address, + unsigned long num_bytes, + unsigned long tlb_word2_i_value) +{ + unsigned long current_address; + unsigned long end_address; + unsigned long address_increment; + unsigned long mcopt1; + char str[] = "ECC generation -"; + char slash[] = "\\|/-\\|/-"; + int loop = 0; + int loopi = 0; + + current_address = start_address; + mfsdram(SDRAM_MCOPT1, mcopt1); + if ((mcopt1 & SDRAM_MCOPT1_MCHK_MASK) != SDRAM_MCOPT1_MCHK_NON) { + mtsdram(SDRAM_MCOPT1, + (mcopt1 & ~SDRAM_MCOPT1_MCHK_MASK) | SDRAM_MCOPT1_MCHK_GEN); + sync(); + eieio(); + wait_ddr_idle(); + + puts(str); + +#ifdef CONFIG_440 + if (tlb_word2_i_value == TLB_WORD2_I_ENABLE) { +#endif + /* ECC bit set method for non-cached memory */ + if ((mcopt1 & SDRAM_MCOPT1_DMWD_MASK) == SDRAM_MCOPT1_DMWD_32) + address_increment = 4; + else + address_increment = SDRAM_DATA_ALT_WIDTH; + end_address = current_address + num_bytes; + + while (current_address < end_address) { + *((unsigned long *)current_address) = 0; + current_address += address_increment; + + if ((loop++ % (2 << 20)) == 0) { + putc('\b'); + putc(slash[loopi++ % 8]); + } + } +#ifdef CONFIG_440 + } else { + /* ECC bit set method for cached memory */ + dcbz_area(start_address, num_bytes); + /* Write modified dcache lines back to memory */ + clean_dcache_range(start_address, start_address + num_bytes); + } +#endif /* CONFIG_440 */ + + blank_string(strlen(str)); + + sync(); + eieio(); + wait_ddr_idle(); + + /* clear ECC error repoting registers */ + mtsdram(SDRAM_ECCES, 0xffffffff); + mtdcr(0x4c, 0xffffffff); + + mtsdram(SDRAM_MCOPT1, + (mcopt1 & ~SDRAM_MCOPT1_MCHK_MASK) | SDRAM_MCOPT1_MCHK_CHK_REP); + sync(); + eieio(); + wait_ddr_idle(); + } +} + +#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR) +void ecc_init(unsigned long * const start, unsigned long size) +{ + /* + * Init ECC with cache disabled (on PPC's with IBM DDR + * controller (non DDR2), not tested with cache enabled yet + */ + program_ecc_addr((u32)start, size, TLB_WORD2_I_ENABLE); +} +#endif + +#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR2) +void do_program_ecc(unsigned long tlb_word2_i_value) +{ + unsigned long mcopt1; + unsigned long mcopt2; + unsigned long mcstat; + phys_size_t memsize = sdram_memsize(); + + if (memsize > CONFIG_MAX_MEM_MAPPED) { + printf("\nWarning: Can't enable ECC on systems with more than 2GB of SDRAM!\n"); + return; + } + + mfsdram(SDRAM_MCOPT1, mcopt1); + mfsdram(SDRAM_MCOPT2, mcopt2); + + if ((mcopt1 & SDRAM_MCOPT1_MCHK_MASK) != SDRAM_MCOPT1_MCHK_NON) { + /* DDR controller must be enabled and not in self-refresh. */ + mfsdram(SDRAM_MCSTAT, mcstat); + if (((mcopt2 & SDRAM_MCOPT2_DCEN_MASK) == SDRAM_MCOPT2_DCEN_ENABLE) + && ((mcopt2 & SDRAM_MCOPT2_SREN_MASK) == SDRAM_MCOPT2_SREN_EXIT) + && ((mcstat & (SDRAM_MCSTAT_MIC_MASK | SDRAM_MCSTAT_SRMS_MASK)) + == (SDRAM_MCSTAT_MIC_COMP | SDRAM_MCSTAT_SRMS_NOT_SF))) { + + program_ecc_addr(0, memsize, tlb_word2_i_value); + } + } +} +#endif + +#endif /* defined(CONFIG_DDR_ECC) || defined(CONFIG_SDRAM_ECC) */ +#endif /* defined(CONFIG_SDRAM_PPC4xx_IBM_DDR)... */ diff --git a/arch/ppc/cpu/ppc4xx/ecc.h b/arch/ppc/cpu/ppc4xx/ecc.h new file mode 100644 index 0000000..b258891 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/ecc.h @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2008 Nuovation System Designs, LLC + * Grant Erickson <gerickson@nuovations.com> + * + * Copyright (c) 2007-2009 DENX Software Engineering, GmbH + * Stefan Roese <sr@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will abe useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Description: + * This file implements ECC initialization for PowerPC processors + * using the IBM SDRAM DDR1 & DDR2 controller. + * + */ + +#ifndef _ECC_H_ +#define _ECC_H_ + +/* + * Since the IBM DDR controller used on 440GP/GX/EP/GR is not register + * compatible to the IBM DDR/2 controller used on 405EX/440SP/SPe/460EX/GT + * we need to make some processor dependant defines used later on by the + * driver. + */ + +/* For 440GP/GX/EP/GR */ +#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR) +#define SDRAM_MCOPT1 SDRAM_CFG0 +#define SDRAM_MCOPT1_MCHK_MASK SDRAM_CFG0_MCHK_MASK +#define SDRAM_MCOPT1_MCHK_NON SDRAM_CFG0_MCHK_NON +#define SDRAM_MCOPT1_MCHK_GEN SDRAM_CFG0_MCHK_GEN +#define SDRAM_MCOPT1_MCHK_CHK SDRAM_CFG0_MCHK_CHK +#define SDRAM_MCOPT1_MCHK_CHK_REP SDRAM_CFG0_MCHK_CHK +#define SDRAM_MCOPT1_DMWD_MASK SDRAM_CFG0_DMWD_MASK +#define SDRAM_MCOPT1_DMWD_32 SDRAM_CFG0_DMWD_32 + +#define SDRAM_MCSTAT SDRAM0_MCSTS +#define SDRAM_MCSTAT_IDLE_MASK SDRAM_MCSTS_CIS +#define SDRAM_MCSTAT_IDLE_NOT SDRAM_MCSTS_IDLE_NOT + +#define SDRAM_ECCES SDRAM0_ECCESR +#endif + +void ecc_init(unsigned long * const start, unsigned long size); +void do_program_ecc(unsigned long tlb_word2_i_value); + +static void inline blank_string(int size) +{ + int i; + + for (i = 0; i < size; i++) + putc('\b'); + for (i = 0; i < size; i++) + putc(' '); + for (i = 0; i < size; i++) + putc('\b'); +} + +#endif /* _ECC_H_ */ diff --git a/arch/ppc/cpu/ppc4xx/fdt.c b/arch/ppc/cpu/ppc4xx/fdt.c new file mode 100644 index 0000000..15a184b --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/fdt.c @@ -0,0 +1,177 @@ +/* + * (C) Copyright 2007-2008 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <asm/cache.h> +#include <ppc4xx.h> + +#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) +#include <libfdt.h> +#include <libfdt_env.h> +#include <fdt_support.h> +#include <asm/4xx_pcie.h> + +DECLARE_GLOBAL_DATA_PTR; + +void __ft_board_setup(void *blob, bd_t *bd) +{ + int rc; + int i; + u32 bxcr; + u32 ranges[EBC_NUM_BANKS * 4]; + u32 *p = ranges; + char ebc_path[] = "/plb/opb/ebc"; + + ft_cpu_setup(blob, bd); + + /* + * Read 4xx EBC bus bridge registers to get mappings of the + * peripheral banks into the OPB/PLB address space + */ + for (i = 0; i < EBC_NUM_BANKS; i++) { + mtdcr(EBC0_CFGADDR, EBC_BXCR(i)); + bxcr = mfdcr(EBC0_CFGDATA); + + if ((bxcr & EBC_BXCR_BU_MASK) != EBC_BXCR_BU_NONE) { + *p++ = i; + *p++ = 0; + *p++ = bxcr & EBC_BXCR_BAS_MASK; + *p++ = EBC_BXCR_BANK_SIZE(bxcr); + +#ifdef CONFIG_FDT_FIXUP_NOR_FLASH_SIZE + /* Try to update reg property in nor flash node too */ + fdt_fixup_nor_flash_size(blob, i, + EBC_BXCR_BANK_SIZE(bxcr)); +#endif + } + } + + /* Some 405 PPC's have EBC as direct PLB child in the dts */ + if (fdt_path_offset(blob, ebc_path) < 0) + strcpy(ebc_path, "/plb/ebc"); + rc = fdt_find_and_setprop(blob, ebc_path, "ranges", ranges, + (p - ranges) * sizeof(u32), 1); + if (rc) { + printf("Unable to update property EBC mappings, err=%s\n", + fdt_strerror(rc)); + } +} +void ft_board_setup(void *blob, bd_t *bd) __attribute__((weak, alias("__ft_board_setup"))); + +/* + * Fixup all PCIe nodes by setting the device_type property + * to "pci-endpoint" instead is "pci" for endpoint ports. + * This property will get checked later by the Linux driver + * to properly configure the PCIe port in Linux (again). + */ +void fdt_pcie_setup(void *blob) +{ + const char *compat = "ibm,plb-pciex"; + const char *prop = "device_type"; + const char *prop_val = "pci-endpoint"; + const u32 *port; + int no; + int rc; + + /* Search first PCIe node */ + no = fdt_node_offset_by_compatible(blob, -1, compat); + while (no != -FDT_ERR_NOTFOUND) { + port = fdt_getprop(blob, no, "port", NULL); + if (port == NULL) { + printf("WARNING: could not find port property\n"); + } else { + if (is_end_point(*port)) { + rc = fdt_setprop(blob, no, prop, prop_val, + strlen(prop_val) + 1); + if (rc < 0) + printf("WARNING: could not set %s for %s: %s.\n", + prop, compat, fdt_strerror(rc)); + } + } + + /* Jump to next PCIe node */ + no = fdt_node_offset_by_compatible(blob, no, compat); + } +} + +void ft_cpu_setup(void *blob, bd_t *bd) +{ + sys_info_t sys_info; + int off, ndepth = 0; + + get_sys_info(&sys_info); + + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, "timebase-frequency", + bd->bi_intfreq, 1); + do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, "clock-frequency", + bd->bi_intfreq, 1); + do_fixup_by_path_u32(blob, "/plb", "clock-frequency", sys_info.freqPLB, 1); + do_fixup_by_path_u32(blob, "/plb/opb", "clock-frequency", sys_info.freqOPB, 1); + + if (fdt_path_offset(blob, "/plb/opb/ebc") >= 0) + do_fixup_by_path_u32(blob, "/plb/opb/ebc", "clock-frequency", + sys_info.freqEBC, 1); + else + do_fixup_by_path_u32(blob, "/plb/ebc", "clock-frequency", + sys_info.freqEBC, 1); + + fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize); + + /* + * Fixup all UART clocks for CPU internal UARTs + * (only these UARTs are definitely clocked by gd->uart_clk) + * + * These UARTs are direct childs of /plb/opb. This code + * does not touch any UARTs that are connected to the ebc. + */ + off = fdt_path_offset(blob, "/plb/opb"); + while ((off = fdt_next_node(blob, off, &ndepth)) >= 0) { + /* + * process all sub nodes and stop when we are back + * at the starting depth + */ + if (ndepth <= 0) + break; + + /* only update direct childs */ + if ((ndepth == 1) && + (fdt_node_check_compatible(blob, off, "ns16550") == 0)) + fdt_setprop(blob, off, + "clock-frequency", + (void*)&(gd->uart_clk), 4); + } + + /* + * Fixup all ethernet nodes + * Note: aliases in the dts are required for this + */ + fdt_fixup_ethernet(blob); + + /* + * Fixup all available PCIe nodes by setting the device_type property + */ + fdt_pcie_setup(blob); +} +#endif /* CONFIG_OF_LIBFDT && CONFIG_OF_BOARD_SETUP */ diff --git a/arch/ppc/cpu/ppc4xx/gpio.c b/arch/ppc/cpu/ppc4xx/gpio.c new file mode 100644 index 0000000..c0d351a --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/gpio.c @@ -0,0 +1,255 @@ +/* + * (C) Copyright 2007-2008 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/gpio.h> + +#if defined(CONFIG_SYS_4xx_GPIO_TABLE) +gpio_param_s const gpio_tab[GPIO_GROUP_MAX][GPIO_MAX] = CONFIG_SYS_4xx_GPIO_TABLE; +#endif + +#if defined(GPIO0_OSRL) +/* Only some 4xx variants support alternate funtions on the GPIO's */ +void gpio_config(int pin, int in_out, int gpio_alt, int out_val) +{ + u32 mask; + u32 mask2; + u32 val; + u32 offs = 0; + u32 offs2 = 0; + int pin2 = pin << 1; + + if (pin >= GPIO_MAX) { + offs = 0x100; + pin -= GPIO_MAX; + } + + if (pin >= GPIO_MAX/2) { + offs2 = 0x4; + pin2 = (pin - GPIO_MAX/2) << 1; + } + + mask = 0x80000000 >> pin; + mask2 = 0xc0000000 >> pin2; + + /* first set TCR to 0 */ + out_be32((void *)GPIO0_TCR + offs, in_be32((void *)GPIO0_TCR + offs) & ~mask); + + if (in_out == GPIO_OUT) { + val = in_be32((void *)GPIO0_OSRL + offs + offs2) & ~mask2; + switch (gpio_alt) { + case GPIO_ALT1: + val |= GPIO_ALT1_SEL >> pin2; + break; + case GPIO_ALT2: + val |= GPIO_ALT2_SEL >> pin2; + break; + case GPIO_ALT3: + val |= GPIO_ALT3_SEL >> pin2; + break; + } + out_be32((void *)GPIO0_OSRL + offs + offs2, val); + + /* setup requested output value */ + if (out_val == GPIO_OUT_0) + out_be32((void *)GPIO0_OR + offs, + in_be32((void *)GPIO0_OR + offs) & ~mask); + else if (out_val == GPIO_OUT_1) + out_be32((void *)GPIO0_OR + offs, + in_be32((void *)GPIO0_OR + offs) | mask); + + /* now configure TCR to drive output if selected */ + out_be32((void *)GPIO0_TCR + offs, + in_be32((void *)GPIO0_TCR + offs) | mask); + } else { + val = in_be32((void *)GPIO0_ISR1L + offs + offs2) & ~mask2; + val |= GPIO_IN_SEL >> pin2; + out_be32((void *)GPIO0_ISR1L + offs + offs2, val); + } +} +#endif /* GPIO_OSRL */ + +void gpio_write_bit(int pin, int val) +{ + u32 offs = 0; + + if (pin >= GPIO_MAX) { + offs = 0x100; + pin -= GPIO_MAX; + } + + if (val) + out_be32((void *)GPIO0_OR + offs, + in_be32((void *)GPIO0_OR + offs) | GPIO_VAL(pin)); + else + out_be32((void *)GPIO0_OR + offs, + in_be32((void *)GPIO0_OR + offs) & ~GPIO_VAL(pin)); +} + +int gpio_read_out_bit(int pin) +{ + u32 offs = 0; + + if (pin >= GPIO_MAX) { + offs = 0x100; + pin -= GPIO_MAX; + } + + return (in_be32((void *)GPIO0_OR + offs) & GPIO_VAL(pin) ? 1 : 0); +} + +int gpio_read_in_bit(int pin) +{ + u32 offs = 0; + + if (pin >= GPIO_MAX) { + offs = 0x100; + pin -= GPIO_MAX; + } + + return (in_be32((void *)GPIO0_IR + offs) & GPIO_VAL(pin) ? 1 : 0); +} + +#if defined(CONFIG_SYS_4xx_GPIO_TABLE) +void gpio_set_chip_configuration(void) +{ + unsigned char i=0, j=0, offs=0, gpio_core; + unsigned long reg, core_add; + + for (gpio_core=0; gpio_core<GPIO_GROUP_MAX; gpio_core++) { + j = 0; + offs = 0; + /* GPIO config of the GPIOs 0 to 31 */ + for (i=0; i<GPIO_MAX; i++, j++) { + if (i == GPIO_MAX/2) { + offs = 4; + j = i-16; + } + + core_add = gpio_tab[gpio_core][i].add; + + if ((gpio_tab[gpio_core][i].in_out == GPIO_IN) || + (gpio_tab[gpio_core][i].in_out == GPIO_BI)) { + + switch (gpio_tab[gpio_core][i].alt_nb) { + case GPIO_SEL: + break; + + case GPIO_ALT1: + reg = in_be32((void *)GPIO_IS1(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (GPIO_IN_SEL >> (j*2)); + out_be32((void *)GPIO_IS1(core_add+offs), reg); + break; + + case GPIO_ALT2: + reg = in_be32((void *)GPIO_IS2(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (GPIO_IN_SEL >> (j*2)); + out_be32((void *)GPIO_IS2(core_add+offs), reg); + break; + + case GPIO_ALT3: + reg = in_be32((void *)GPIO_IS3(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (GPIO_IN_SEL >> (j*2)); + out_be32((void *)GPIO_IS3(core_add+offs), reg); + break; + } + } + + if ((gpio_tab[gpio_core][i].in_out == GPIO_OUT) || + (gpio_tab[gpio_core][i].in_out == GPIO_BI)) { + + u32 gpio_alt_sel = 0; + + switch (gpio_tab[gpio_core][i].alt_nb) { + case GPIO_SEL: + /* + * Setup output value + * 1 -> high level + * 0 -> low level + * else -> don't touch + */ + reg = in_be32((void *)GPIO_OR(core_add)); + if (gpio_tab[gpio_core][i].out_val == GPIO_OUT_1) + reg |= (0x80000000 >> (i)); + else if (gpio_tab[gpio_core][i].out_val == GPIO_OUT_0) + reg &= ~(0x80000000 >> (i)); + out_be32((void *)GPIO_OR(core_add), reg); + + reg = in_be32((void *)GPIO_TCR(core_add)) | + (0x80000000 >> (i)); + out_be32((void *)GPIO_TCR(core_add), reg); + + reg = in_be32((void *)GPIO_OS(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + out_be32((void *)GPIO_OS(core_add+offs), reg); + reg = in_be32((void *)GPIO_TS(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + out_be32((void *)GPIO_TS(core_add+offs), reg); + break; + + case GPIO_ALT1: + gpio_alt_sel = GPIO_ALT1_SEL; + break; + + case GPIO_ALT2: + gpio_alt_sel = GPIO_ALT2_SEL; + break; + + case GPIO_ALT3: + gpio_alt_sel = GPIO_ALT3_SEL; + break; + } + + if (0 != gpio_alt_sel) { + reg = in_be32((void *)GPIO_OS(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (gpio_alt_sel >> (j*2)); + out_be32((void *)GPIO_OS(core_add+offs), reg); + + if (gpio_tab[gpio_core][i].out_val == GPIO_OUT_1) { + reg = in_be32((void *)GPIO_TCR(core_add)) + | (0x80000000 >> (i)); + out_be32((void *)GPIO_TCR(core_add), reg); + reg = in_be32((void *)GPIO_TS(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + out_be32((void *)GPIO_TS(core_add+offs), reg); + } else { + reg = in_be32((void *)GPIO_TCR(core_add)) + & ~(0x80000000 >> (i)); + out_be32((void *)GPIO_TCR(core_add), reg); + reg = in_be32((void *)GPIO_TS(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (gpio_alt_sel >> (j*2)); + out_be32((void *)GPIO_TS(core_add+offs), reg); + } + } + } + } + } +} +#endif /* CONFIG_SYS_4xx_GPIO_TABLE */ diff --git a/arch/ppc/cpu/ppc4xx/interrupts.c b/arch/ppc/cpu/ppc4xx/interrupts.c new file mode 100644 index 0000000..6db8421 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/interrupts.c @@ -0,0 +1,216 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2002 (440 port) + * Scott McNutt, Artesyn Communication Producs, smcnutt@artsyncp.com + * + * (C) Copyright 2003 (440GX port) + * Travis B. Sawyer, Sandburst Corporation, tsawyer@sandburst.com + * + * (C) Copyright 2008 (PPC440X05 port for Virtex 5 FX) + * Ricardo Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es + * Work supported by Qtechnology (htpp://qtec.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <asm/processor.h> +#include <asm/interrupt.h> +#include <ppc4xx.h> +#include <ppc_asm.tmpl> +#include <commproc.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * CPM interrupt vector functions. + */ +struct irq_action { + interrupt_handler_t *handler; + void *arg; + int count; +}; +static struct irq_action irq_vecs[IRQ_MAX]; + +#if defined(CONFIG_440) + +/* SPRN changed in 440 */ +static __inline__ void set_evpr(unsigned long val) +{ + asm volatile("mtspr 0x03f,%0" : : "r" (val)); +} + +#else /* !defined(CONFIG_440) */ + +static __inline__ void set_pit(unsigned long val) +{ + asm volatile("mtpit %0" : : "r" (val)); +} + + +static __inline__ void set_tcr(unsigned long val) +{ + asm volatile("mttcr %0" : : "r" (val)); +} + + +static __inline__ void set_evpr(unsigned long val) +{ + asm volatile("mtevpr %0" : : "r" (val)); +} +#endif /* defined(CONFIG_440 */ + +int interrupt_init_cpu (unsigned *decrementer_count) +{ + int vec; + unsigned long val; + + /* decrementer is automatically reloaded */ + *decrementer_count = 0; + + /* + * Mark all irqs as free + */ + for (vec = 0; vec < IRQ_MAX; vec++) { + irq_vecs[vec].handler = NULL; + irq_vecs[vec].arg = NULL; + irq_vecs[vec].count = 0; + } + +#ifdef CONFIG_4xx + /* + * Init PIT + */ +#if defined(CONFIG_440) + val = mfspr( SPRN_TCR ); + val &= (~0x04400000); /* clear DIS & ARE */ + mtspr( SPRN_TCR, val ); + mtspr( SPRN_DEC, 0 ); /* Prevent exception after TSR clear*/ + mtspr( SPRN_DECAR, 0 ); /* clear reload */ + mtspr( SPRN_TSR, 0x08000000 ); /* clear DEC status */ + val = gd->bd->bi_intfreq/1000; /* 1 msec */ + mtspr( SPRN_DECAR, val ); /* Set auto-reload value */ + mtspr( SPRN_DEC, val ); /* Set inital val */ +#else + set_pit(gd->bd->bi_intfreq / 1000); +#endif +#endif /* CONFIG_4xx */ + +#ifdef CONFIG_ADCIOP + /* + * Init PIT + */ + set_pit(66000); +#endif + + /* + * Enable PIT + */ + val = mfspr(SPRN_TCR); + val |= 0x04400000; + mtspr(SPRN_TCR, val); + + /* + * Set EVPR to 0 + */ + set_evpr(0x00000000); + + /* + * Call uic or xilinx_irq pic_enable + */ + pic_enable(); + + return (0); +} + +void timer_interrupt_cpu(struct pt_regs *regs) +{ + /* nothing to do here */ + return; +} + +void interrupt_run_handler(int vec) +{ + irq_vecs[vec].count++; + + if (irq_vecs[vec].handler != NULL) { + /* call isr */ + (*irq_vecs[vec].handler) (irq_vecs[vec].arg); + } else { + pic_irq_disable(vec); + printf("Masking bogus interrupt vector %d\n", vec); + } + + pic_irq_ack(vec); + return; +} + +void irq_install_handler(int vec, interrupt_handler_t * handler, void *arg) +{ + /* + * Print warning when replacing with a different irq vector + */ + if ((irq_vecs[vec].handler != NULL) && (irq_vecs[vec].handler != handler)) { + printf("Interrupt vector %d: handler 0x%x replacing 0x%x\n", + vec, (uint) handler, (uint) irq_vecs[vec].handler); + } + irq_vecs[vec].handler = handler; + irq_vecs[vec].arg = arg; + + pic_irq_enable(vec); + return; +} + +void irq_free_handler(int vec) +{ + debug("Free interrupt for vector %d ==> %p\n", + vec, irq_vecs[vec].handler); + + pic_irq_disable(vec); + + irq_vecs[vec].handler = NULL; + irq_vecs[vec].arg = NULL; + return; +} + +#if defined(CONFIG_CMD_IRQ) +int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + int vec; + + printf ("Interrupt-Information:\n"); + printf ("Nr Routine Arg Count\n"); + + for (vec = 0; vec < IRQ_MAX; vec++) { + if (irq_vecs[vec].handler != NULL) { + printf ("%02d %08lx %08lx %d\n", + vec, + (ulong)irq_vecs[vec].handler, + (ulong)irq_vecs[vec].arg, + irq_vecs[vec].count); + } + } + + return 0; +} +#endif diff --git a/arch/ppc/cpu/ppc4xx/iop480_uart.c b/arch/ppc/cpu/ppc4xx/iop480_uart.c new file mode 100644 index 0000000..0e3423f --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/iop480_uart.c @@ -0,0 +1,237 @@ +/* + * (C) Copyright 2000-2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <commproc.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <watchdog.h> + +#ifdef CONFIG_SERIAL_MULTI +#include <serial.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_IOP480 + +#define SPU_BASE 0x40000000 + +#define spu_LineStat_rc 0x00 /* Line Status Register (Read/Clear) */ +#define spu_LineStat_w 0x04 /* Line Status Register (Set) */ +#define spu_Handshk_rc 0x08 /* Handshake Status Register (Read/Clear) */ +#define spu_Handshk_w 0x0c /* Handshake Status Register (Set) */ +#define spu_BRateDivh 0x10 /* Baud rate divisor high */ +#define spu_BRateDivl 0x14 /* Baud rate divisor low */ +#define spu_CtlReg 0x18 /* Control Register */ +#define spu_RxCmd 0x1c /* Rx Command Register */ +#define spu_TxCmd 0x20 /* Tx Command Register */ +#define spu_RxBuff 0x24 /* Rx data buffer */ +#define spu_TxBuff 0x24 /* Tx data buffer */ + +/*-----------------------------------------------------------------------------+ + | Line Status Register. + +-----------------------------------------------------------------------------*/ +#define asyncLSRport1 0x40000000 +#define asyncLSRport1set 0x40000004 +#define asyncLSRDataReady 0x80 +#define asyncLSRFramingError 0x40 +#define asyncLSROverrunError 0x20 +#define asyncLSRParityError 0x10 +#define asyncLSRBreakInterrupt 0x08 +#define asyncLSRTxHoldEmpty 0x04 +#define asyncLSRTxShiftEmpty 0x02 + +/*-----------------------------------------------------------------------------+ + | Handshake Status Register. + +-----------------------------------------------------------------------------*/ +#define asyncHSRport1 0x40000008 +#define asyncHSRport1set 0x4000000c +#define asyncHSRDsr 0x80 +#define asyncLSRCts 0x40 + +/*-----------------------------------------------------------------------------+ + | Control Register. + +-----------------------------------------------------------------------------*/ +#define asyncCRport1 0x40000018 +#define asyncCRNormal 0x00 +#define asyncCRLoopback 0x40 +#define asyncCRAutoEcho 0x80 +#define asyncCRDtr 0x20 +#define asyncCRRts 0x10 +#define asyncCRWordLength7 0x00 +#define asyncCRWordLength8 0x08 +#define asyncCRParityDisable 0x00 +#define asyncCRParityEnable 0x04 +#define asyncCREvenParity 0x00 +#define asyncCROddParity 0x02 +#define asyncCRStopBitsOne 0x00 +#define asyncCRStopBitsTwo 0x01 +#define asyncCRDisableDtrRts 0x00 + +/*-----------------------------------------------------------------------------+ + | Receiver Command Register. + +-----------------------------------------------------------------------------*/ +#define asyncRCRport1 0x4000001c +#define asyncRCRDisable 0x00 +#define asyncRCREnable 0x80 +#define asyncRCRIntDisable 0x00 +#define asyncRCRIntEnabled 0x20 +#define asyncRCRDMACh2 0x40 +#define asyncRCRDMACh3 0x60 +#define asyncRCRErrorInt 0x10 +#define asyncRCRPauseEnable 0x08 + +/*-----------------------------------------------------------------------------+ + | Transmitter Command Register. + +-----------------------------------------------------------------------------*/ +#define asyncTCRport1 0x40000020 +#define asyncTCRDisable 0x00 +#define asyncTCREnable 0x80 +#define asyncTCRIntDisable 0x00 +#define asyncTCRIntEnabled 0x20 +#define asyncTCRDMACh2 0x40 +#define asyncTCRDMACh3 0x60 +#define asyncTCRTxEmpty 0x10 +#define asyncTCRErrorInt 0x08 +#define asyncTCRStopPause 0x04 +#define asyncTCRBreakGen 0x02 + +/*-----------------------------------------------------------------------------+ + | Miscellanies defines. + +-----------------------------------------------------------------------------*/ +#define asyncTxBufferport1 0x40000024 +#define asyncRxBufferport1 0x40000024 +#define asyncDLABLsbport1 0x40000014 +#define asyncDLABMsbport1 0x40000010 +#define asyncXOFFchar 0x13 +#define asyncXONchar 0x11 + +/* + * Minimal serial functions needed to use one of the SMC ports + * as serial console interface. + */ + +int serial_init (void) +{ + volatile char val; + unsigned short br_reg; + + br_reg = ((((CONFIG_CPUCLOCK * 1000000) / 16) / gd->baudrate) - 1); + + /* + * Init onboard UART + */ + out_8((u8 *)SPU_BASE + spu_LineStat_rc, 0x78); /* Clear all bits in Line Status Reg */ + out_8((u8 *)SPU_BASE + spu_BRateDivl, (br_reg & 0x00ff)); /* Set baud rate divisor... */ + out_8((u8 *)SPU_BASE + spu_BRateDivh, ((br_reg & 0xff00) >> 8)); /* ... */ + out_8((u8 *)SPU_BASE + spu_CtlReg, 0x08); /* Set 8 bits, no parity and 1 stop bit */ + out_8((u8 *)SPU_BASE + spu_RxCmd, 0xb0); /* Enable Rx */ + out_8((u8 *)SPU_BASE + spu_TxCmd, 0x9c); /* Enable Tx */ + out_8((u8 *)SPU_BASE + spu_Handshk_rc, 0xff); /* Clear Handshake */ + val = in_8((u8 *)SPU_BASE + spu_RxBuff); /* Dummy read, to clear receiver */ + + return (0); +} + +void serial_setbrg (void) +{ + unsigned short br_reg; + + br_reg = ((((CONFIG_CPUCLOCK * 1000000) / 16) / gd->baudrate) - 1); + + out_8((u8 *)SPU_BASE + spu_BRateDivl, + (br_reg & 0x00ff)); /* Set baud rate divisor... */ + out_8((u8 *)SPU_BASE + spu_BRateDivh, + ((br_reg & 0xff00) >> 8)); /* ... */ +} + +void serial_putc (const char c) +{ + if (c == '\n') + serial_putc ('\r'); + + /* load status from handshake register */ + if (in_8((u8 *)SPU_BASE + spu_Handshk_rc) != 00) + out_8((u8 *)SPU_BASE + spu_Handshk_rc, 0xff); /* Clear Handshake */ + + out_8((u8 *)SPU_BASE + spu_TxBuff, c); /* Put char */ + + while ((in_8((u8 *)SPU_BASE + spu_LineStat_rc) & 04) != 04) { + if (in_8((u8 *)SPU_BASE + spu_Handshk_rc) != 00) + out_8((u8 *)SPU_BASE + spu_Handshk_rc, 0xff); /* Clear Handshake */ + } +} + +void serial_puts (const char *s) +{ + while (*s) { + serial_putc (*s++); + } +} + +int serial_getc () +{ + unsigned char status = 0; + + while (1) { + status = in_8((u8 *)asyncLSRport1); + if ((status & asyncLSRDataReady) != 0x0) { + break; + } + if ((status & ( asyncLSRFramingError | + asyncLSROverrunError | + asyncLSRParityError | + asyncLSRBreakInterrupt )) != 0) { + (void) out_8((u8 *)asyncLSRport1, + asyncLSRFramingError | + asyncLSROverrunError | + asyncLSRParityError | + asyncLSRBreakInterrupt ); + } + } + return (0x000000ff & (int) in_8((u8 *)asyncRxBufferport1)); +} + +int serial_tstc () +{ + unsigned char status; + + status = in_8((u8 *)asyncLSRport1); + if ((status & asyncLSRDataReady) != 0x0) { + return (1); + } + if ((status & ( asyncLSRFramingError | + asyncLSROverrunError | + asyncLSRParityError | + asyncLSRBreakInterrupt )) != 0) { + (void) out_8((u8 *)asyncLSRport1, + asyncLSRFramingError | + asyncLSROverrunError | + asyncLSRParityError | + asyncLSRBreakInterrupt); + } + return 0; +} + +#endif /* CONFIG_IOP480 */ diff --git a/arch/ppc/cpu/ppc4xx/kgdb.S b/arch/ppc/cpu/ppc4xx/kgdb.S new file mode 100644 index 0000000..4227a4c --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/kgdb.S @@ -0,0 +1,78 @@ +/* + * Copyright (C) 2000 Murray Jensen <Murray.Jensen@cmst.csiro.au> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <command.h> +#include <ppc4xx.h> +#include <version.h> + +#define CONFIG_405GP 1 /* needed for Linux kernel header files */ +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#if defined(CONFIG_CMD_KGDB) + /* + * cache flushing routines for kgdb + */ + + .globl kgdb_flush_cache_all +kgdb_flush_cache_all: + /* icache */ + iccci r0,r0 /* iccci invalidates the entire I cache */ + /* dcache */ + addi r6,0,0x0000 /* clear GPR 6 */ + addi r7,r0, 128 /* do loop for # of dcache lines */ + /* NOTE: dccci invalidates both */ + mtctr r7 /* ways in the D cache */ +..dcloop: + dccci 0,r6 /* invalidate line */ + addi r6,r6, 32 /* bump to next line */ + bdnz ..dcloop + blr + + .globl kgdb_flush_cache_range +kgdb_flush_cache_range: + li r5,L1_CACHE_BYTES-1 + andc r3,r3,r5 + subf r4,r3,r4 + add r4,r4,r5 + srwi. r4,r4,L1_CACHE_SHIFT + beqlr + mtctr r4 + mr r6,r3 +1: dcbst 0,r3 + addi r3,r3,L1_CACHE_BYTES + bdnz 1b + sync /* wait for dcbst's to get to ram */ + mtctr r4 +2: icbi 0,r6 + addi r6,r6,L1_CACHE_BYTES + bdnz 2b + SYNC + blr + +#endif diff --git a/arch/ppc/cpu/ppc4xx/miiphy.c b/arch/ppc/cpu/ppc4xx/miiphy.c new file mode 100644 index 0000000..22ed5c2 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/miiphy.c @@ -0,0 +1,366 @@ +/*-----------------------------------------------------------------------------+ + | This source code is dual-licensed. You may use it under the terms of the + | GNU General Public License version 2, or under the license below. + | + | This source code has been made available to you by IBM on an AS-IS + | basis. Anyone receiving this source is licensed under IBM + | copyrights to use it in any way he or she deems fit, including + | copying it, modifying it, compiling it, and redistributing it either + | with or without modifications. No license under IBM patents or + | patent applications is to be implied by the copyright license. + | + | Any user of this software should understand that IBM cannot provide + | technical support for this software and will not be responsible for + | any consequences resulting from the use of this software. + | + | Any person who transfers this source code or any derivative work + | must include the IBM copyright notice, this paragraph, and the + | preceding two paragraphs in the transferred software. + | + | COPYRIGHT I B M CORPORATION 1995 + | LICENSED MATERIAL - PROGRAM PROPERTY OF I B M + +-----------------------------------------------------------------------------*/ +/*-----------------------------------------------------------------------------+ + | + | File Name: miiphy.c + | + | Function: This module has utilities for accessing the MII PHY through + | the EMAC3 macro. + | + | Author: Mark Wisner + | + +-----------------------------------------------------------------------------*/ + +/* define DEBUG for debugging output (obviously ;-)) */ +#if 0 +#define DEBUG +#endif + +#include <common.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <ppc_asm.tmpl> +#include <commproc.h> +#include <ppc4xx_enet.h> +#include <405_mal.h> +#include <miiphy.h> + +#if !defined(CONFIG_PHY_CLK_FREQ) +#define CONFIG_PHY_CLK_FREQ 0 +#endif + +/***********************************************************/ +/* Dump out to the screen PHY regs */ +/***********************************************************/ + +void miiphy_dump (char *devname, unsigned char addr) +{ + unsigned long i; + unsigned short data; + + for (i = 0; i < 0x1A; i++) { + if (miiphy_read (devname, addr, i, &data)) { + printf ("read error for reg %lx\n", i); + return; + } + printf ("Phy reg %lx ==> %4x\n", i, data); + + /* jump to the next set of regs */ + if (i == 0x07) + i = 0x0f; + + } /* end for loop */ +} /* end dump */ + +/***********************************************************/ +/* (Re)start autonegotiation */ +/***********************************************************/ +int phy_setup_aneg (char *devname, unsigned char addr) +{ + u16 bmcr; + +#if defined(CONFIG_PHY_DYNAMIC_ANEG) + /* + * Set up advertisement based on capablilities reported by the PHY. + * This should work for both copper and fiber. + */ + u16 bmsr; +#if defined(CONFIG_PHY_GIGE) + u16 exsr = 0x0000; +#endif + + miiphy_read (devname, addr, PHY_BMSR, &bmsr); + +#if defined(CONFIG_PHY_GIGE) + if (bmsr & PHY_BMSR_EXT_STAT) + miiphy_read (devname, addr, PHY_EXSR, &exsr); + + if (exsr & (PHY_EXSR_1000XF | PHY_EXSR_1000XH)) { + /* 1000BASE-X */ + u16 anar = 0x0000; + + if (exsr & PHY_EXSR_1000XF) + anar |= PHY_X_ANLPAR_FD; + + if (exsr & PHY_EXSR_1000XH) + anar |= PHY_X_ANLPAR_HD; + + miiphy_write (devname, addr, PHY_ANAR, anar); + } else +#endif + { + u16 anar, btcr; + + miiphy_read (devname, addr, PHY_ANAR, &anar); + anar &= ~(0x5000 | PHY_ANLPAR_T4 | PHY_ANLPAR_TXFD | + PHY_ANLPAR_TX | PHY_ANLPAR_10FD | PHY_ANLPAR_10); + + miiphy_read (devname, addr, PHY_1000BTCR, &btcr); + btcr &= ~(0x00FF | PHY_1000BTCR_1000FD | PHY_1000BTCR_1000HD); + + if (bmsr & PHY_BMSR_100T4) + anar |= PHY_ANLPAR_T4; + + if (bmsr & PHY_BMSR_100TXF) + anar |= PHY_ANLPAR_TXFD; + + if (bmsr & PHY_BMSR_100TXH) + anar |= PHY_ANLPAR_TX; + + if (bmsr & PHY_BMSR_10TF) + anar |= PHY_ANLPAR_10FD; + + if (bmsr & PHY_BMSR_10TH) + anar |= PHY_ANLPAR_10; + + miiphy_write (devname, addr, PHY_ANAR, anar); + +#if defined(CONFIG_PHY_GIGE) + if (exsr & PHY_EXSR_1000TF) + btcr |= PHY_1000BTCR_1000FD; + + if (exsr & PHY_EXSR_1000TH) + btcr |= PHY_1000BTCR_1000HD; + + miiphy_write (devname, addr, PHY_1000BTCR, btcr); +#endif + } + +#else /* defined(CONFIG_PHY_DYNAMIC_ANEG) */ + /* + * Set up standard advertisement + */ + u16 adv; + + miiphy_read (devname, addr, PHY_ANAR, &adv); + adv |= (PHY_ANLPAR_ACK | PHY_ANLPAR_TXFD | PHY_ANLPAR_TX | + PHY_ANLPAR_10FD | PHY_ANLPAR_10); + miiphy_write (devname, addr, PHY_ANAR, adv); + + miiphy_read (devname, addr, PHY_1000BTCR, &adv); + adv |= (0x0300); + miiphy_write (devname, addr, PHY_1000BTCR, adv); + +#endif /* defined(CONFIG_PHY_DYNAMIC_ANEG) */ + + /* Start/Restart aneg */ + miiphy_read (devname, addr, PHY_BMCR, &bmcr); + bmcr |= (PHY_BMCR_AUTON | PHY_BMCR_RST_NEG); + miiphy_write (devname, addr, PHY_BMCR, bmcr); + + return 0; +} + +/***********************************************************/ +/* read a phy reg and return the value with a rc */ +/***********************************************************/ +/* AMCC_TODO: + * Find out of the choice for the emac for MDIO is from the bridges, + * i.e. ZMII or RGMII as approporiate. If the bridges are not used + * to determine the emac for MDIO, then is the SDR0_ETH_CFG[MDIO_SEL] + * used? If so, then this routine below does not apply to the 460EX/GT. + * + * sr: Currently on 460EX only EMAC0 works with MDIO, so we always + * return EMAC0 offset here + * vg: For 460EX/460GT if internal GPCS PHY address is specified + * return appropriate EMAC offset + */ +unsigned int miiphy_getemac_offset(u8 addr) +{ +#if (defined(CONFIG_440) && \ + !defined(CONFIG_440SP) && !defined(CONFIG_440SPE) && \ + !defined(CONFIG_460EX) && !defined(CONFIG_460GT)) && \ + defined(CONFIG_NET_MULTI) + unsigned long zmii; + unsigned long eoffset; + + /* Need to find out which mdi port we're using */ + zmii = in_be32((void *)ZMII0_FER); + + if (zmii & (ZMII_FER_MDI << ZMII_FER_V (0))) + /* using port 0 */ + eoffset = 0; + + else if (zmii & (ZMII_FER_MDI << ZMII_FER_V (1))) + /* using port 1 */ + eoffset = 0x100; + + else if (zmii & (ZMII_FER_MDI << ZMII_FER_V (2))) + /* using port 2 */ + eoffset = 0x400; + + else if (zmii & (ZMII_FER_MDI << ZMII_FER_V (3))) + /* using port 3 */ + eoffset = 0x600; + + else { + /* None of the mdi ports are enabled! */ + /* enable port 0 */ + zmii |= ZMII_FER_MDI << ZMII_FER_V (0); + out_be32((void *)ZMII0_FER, zmii); + eoffset = 0; + /* need to soft reset port 0 */ + zmii = in_be32((void *)EMAC0_MR0); + zmii |= EMAC_MR0_SRST; + out_be32((void *)EMAC0_MR0, zmii); + } + + return (eoffset); +#else + +#if defined(CONFIG_NET_MULTI) && defined(CONFIG_405EX) + unsigned long rgmii; + int devnum = 1; + + rgmii = in_be32((void *)RGMII_FER); + if (rgmii & (1 << (19 - devnum))) + return 0x100; +#endif + +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) + u32 eoffset = 0; + + switch (addr) { +#if defined(CONFIG_HAS_ETH1) && defined(CONFIG_GPCS_PHY1_ADDR) + case CONFIG_GPCS_PHY1_ADDR: + if (addr == EMAC_MR1_IPPA_GET(in_be32((void *)EMAC0_MR1 + 0x100))) + eoffset = 0x100; + break; +#endif +#if defined(CONFIG_HAS_ETH2) && defined(CONFIG_GPCS_PHY2_ADDR) + case CONFIG_GPCS_PHY2_ADDR: + if (addr == EMAC_MR1_IPPA_GET(in_be32((void *)EMAC0_MR1 + 0x300))) + eoffset = 0x300; + break; +#endif +#if defined(CONFIG_HAS_ETH3) && defined(CONFIG_GPCS_PHY3_ADDR) + case CONFIG_GPCS_PHY3_ADDR: + if (addr == EMAC_MR1_IPPA_GET(in_be32((void *)EMAC0_MR1 + 0x400))) + eoffset = 0x400; + break; +#endif + default: + eoffset = 0; + break; + } + return eoffset; +#endif + + return 0; +#endif +} + +static int emac_miiphy_wait(u32 emac_reg) +{ + u32 sta_reg; + int i; + + /* wait for completion */ + i = 0; + do { + sta_reg = in_be32((void *)EMAC0_STACR + emac_reg); + if (i++ > 5) { + debug("%s [%d]: Timeout! EMAC0_STACR=0x%0x\n", __func__, + __LINE__, sta_reg); + return -1; + } + udelay(10); + } while ((sta_reg & EMAC_STACR_OC) == EMAC_STACR_OC_MASK); + + return 0; +} + +static int emac_miiphy_command(u8 addr, u8 reg, int cmd, u16 value) +{ + u32 emac_reg; + u32 sta_reg; + + emac_reg = miiphy_getemac_offset(addr); + + /* wait for completion */ + if (emac_miiphy_wait(emac_reg) != 0) + return -1; + + sta_reg = reg; /* reg address */ + + /* set clock (50MHz) and read flags */ +#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ + defined(CONFIG_405EX) +#if defined(CONFIG_IBM_EMAC4_V4) /* EMAC4 V4 changed bit setting */ + sta_reg = (sta_reg & ~EMAC_STACR_OP_MASK) | cmd; +#else + sta_reg |= cmd; +#endif +#else + sta_reg = (sta_reg | cmd) & ~EMAC_STACR_CLK_100MHZ; +#endif + + /* Some boards (mainly 405EP based) define the PHY clock freqency fixed */ + sta_reg = sta_reg | CONFIG_PHY_CLK_FREQ; + sta_reg = sta_reg | ((u32)addr << 5); /* Phy address */ + sta_reg = sta_reg | EMAC_STACR_OC_MASK; /* new IBM emac v4 */ + if (cmd == EMAC_STACR_WRITE) + memcpy(&sta_reg, &value, 2); /* put in data */ + + out_be32((void *)EMAC0_STACR + emac_reg, sta_reg); + debug("%s [%d]: sta_reg=%08x\n", __func__, __LINE__, sta_reg); + + /* wait for completion */ + if (emac_miiphy_wait(emac_reg) != 0) + return -1; + + debug("%s [%d]: sta_reg=%08x\n", __func__, __LINE__, sta_reg); + if ((sta_reg & EMAC_STACR_PHYE) != 0) + return -1; + + return 0; +} + +int emac4xx_miiphy_read (char *devname, unsigned char addr, unsigned char reg, + unsigned short *value) +{ + unsigned long sta_reg; + unsigned long emac_reg; + + emac_reg = miiphy_getemac_offset(addr); + + if (emac_miiphy_command(addr, reg, EMAC_STACR_READ, 0) != 0) + return -1; + + sta_reg = in_be32((void *)EMAC0_STACR + emac_reg); + *value = sta_reg >> 16; + + return 0; +} + +/***********************************************************/ +/* write a phy reg and return the value with a rc */ +/***********************************************************/ + +int emac4xx_miiphy_write (char *devname, unsigned char addr, unsigned char reg, + unsigned short value) +{ + return emac_miiphy_command(addr, reg, EMAC_STACR_WRITE, value); +} diff --git a/arch/ppc/cpu/ppc4xx/reginfo.c b/arch/ppc/cpu/ppc4xx/reginfo.c new file mode 100644 index 0000000..a975667 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/reginfo.c @@ -0,0 +1,370 @@ +/* + *(C) Copyright 2005-2009 Netstal Maschinen AG + * Bruno Hars (Bruno.Hars@netstal.com) + * Niklaus Giger (Niklaus.Giger@netstal.com) + * + * This source code is free software; you can redistribute it + * and/or modify it in source code form under the terms of the GNU + * General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +/* + * reginfo.c - register dump of HW-configuratin register for PPC4xx based board + */ + +#include <common.h> +#include <command.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/ppc4xx-uic.h> +#include <ppc4xx_enet.h> + +enum REGISTER_TYPE { + IDCR1, /* Indirectly Accessed DCR via SDRAM0_CFGADDR/SDRAM0_CFGDATA */ + IDCR2, /* Indirectly Accessed DCR via EBC0_CFGADDR/EBC0_CFGDATA */ + IDCR3, /* Indirectly Accessed DCR via EBM0_CFGADDR/EBM0_CFGDATA */ + IDCR4, /* Indirectly Accessed DCR via PPM0_CFGADDR/PPM0_CFGDATA */ + IDCR5, /* Indirectly Accessed DCR via CPR0_CFGADDR/CPR0_CFGDATA */ + IDCR6, /* Indirectly Accessed DCR via SDR0_CFGADDR/SDR0_CFGDATA */ + MM /* Directly Accessed MMIO Register */ +}; + +struct cpu_register { + char *name; + enum REGISTER_TYPE type; + u32 address; +}; + +/* + * PPC440EPx registers ordered for output + * name type addr size + * ------------------------------------------- + */ + +const struct cpu_register ppc4xx_reg[] = { + {"PB0CR", IDCR2, PB0CR}, + {"PB0AP", IDCR2, PB0AP}, + {"PB1CR", IDCR2, PB1CR}, + {"PB1AP", IDCR2, PB1AP}, + {"PB2CR", IDCR2, PB2CR}, + {"PB2AP", IDCR2, PB2AP}, + {"PB3CR", IDCR2, PB3CR}, + {"PB3AP", IDCR2, PB3AP}, + + {"PB4CR", IDCR2, PB4CR}, + {"PB4AP", IDCR2, PB4AP}, +#if !defined(CONFIG_405EP) + {"PB5CR", IDCR2, PB5CR}, + {"PB5AP", IDCR2, PB5AP}, + {"PB6CR", IDCR2, PB6CR}, + {"PB6AP", IDCR2, PB6AP}, + {"PB7CR", IDCR2, PB7CR}, + {"PB7AP", IDCR2, PB7AP}, +#endif + + {"PBEAR", IDCR2, PBEAR}, +#if defined(CONFIG_405EP) || defined (CONFIG_405GP) + {"PBESR0", IDCR2, PBESR0}, + {"PBESR1", IDCR2, PBESR1}, +#endif + {"EBC0_CFG", IDCR2, EBC0_CFG}, + +#ifdef CONFIG_405GP + {"SDRAM0_BESR0", IDCR1, SDRAM0_BESR0}, + {"SDRAM0_BESRS0", IDCR1, SDRAM0_BESRS0}, + {"SDRAM0_BESR1", IDCR1, SDRAM0_BESR1}, + {"SDRAM0_BESRS1", IDCR1, SDRAM0_BESRS1}, + {"SDRAM0_BEAR", IDCR1, SDRAM0_BEAR}, + {"SDRAM0_CFG", IDCR1, SDRAM0_CFG}, + {"SDRAM0_RTR", IDCR1, SDRAM0_RTR}, + {"SDRAM0_PMIT", IDCR1, SDRAM0_PMIT}, + + {"SDRAM0_B0CR", IDCR1, SDRAM0_B0CR}, + {"SDRAM0_B1CR", IDCR1, SDRAM0_B1CR}, + {"SDRAM0_B2CR", IDCR1, SDRAM0_B2CR}, + {"SDRAM0_B3CR", IDCR1, SDRAM0_B1CR}, + {"SDRAM0_TR", IDCR1, SDRAM0_TR}, + {"SDRAM0_ECCCFG", IDCR1, SDRAM0_B1CR}, + {"SDRAM0_ECCESR", IDCR1, SDRAM0_ECCESR}, + + +#endif + +#ifdef CONFIG_440EPX + {"SDR0_SDSTP0", IDCR6, SDR0_SDSTP0}, + {"SDR0_SDSTP1", IDCR6, SDR0_SDSTP1}, + {"SDR0_SDSTP2", IDCR6, SDR0_SDSTP2}, + {"SDR0_SDSTP3", IDCR6, SDR0_SDSTP3}, + {"SDR0_CUST0", IDCR6, SDR0_CUST0}, + {"SDR0_CUST1", IDCR6, SDR0_CUST1}, + {"SDR0_EBC0", IDCR6, SDR0_EBC0}, + {"SDR0_AMP0", IDCR6, SD0_AMP0}, + {"SDR0_AMP1", IDCR6, SD0_AMP1}, + {"SDR0_CP440", IDCR6, SDR0_CP440}, + {"SDR0_CRYP0", IDCR6, SDR0_CRYP0}, + {"SDR0_DDRCFG", IDCR6, SDR0_DDRCFG}, + {"SDR0_EMAC0RXST", IDCR6, SDR0_EMAC0RXST}, + {"SDR0_EMAC0TXST", IDCR6, SDR0_EMAC0TXST}, + {"SDR0_MFR", IDCR6, SDR0_MFR}, + {"SDR0_PCI0", IDCR6, SDR0_PCI0}, + {"SDR0_PFC0", IDCR6, SDR0_PFC0}, + {"SDR0_PFC1", IDCR6, SDR0_PFC1}, + {"SDR0_PFC2", IDCR6, SDR0_PFC2}, + {"SDR0_PFC4", IDCR6, SDR0_PFC4}, + {"SDR0_UART0", IDCR6, SDR0_UART0}, + {"SDR0_UART1", IDCR6, SDR0_UART1}, + {"SDR0_UART2", IDCR6, SDR0_UART2}, + {"SDR0_UART3", IDCR6, SDR0_UART3}, + {"DDR0_02", IDCR1, DDR0_02}, + {"DDR0_00", IDCR1, DDR0_00}, + {"DDR0_01", IDCR1, DDR0_01}, + {"DDR0_03", IDCR1, DDR0_03}, + {"DDR0_04", IDCR1, DDR0_04}, + {"DDR0_05", IDCR1, DDR0_05}, + {"DDR0_06", IDCR1, DDR0_06}, + {"DDR0_07", IDCR1, DDR0_07}, + {"DDR0_08", IDCR1, DDR0_08}, + {"DDR0_09", IDCR1, DDR0_09}, + {"DDR0_10", IDCR1, DDR0_10}, + {"DDR0_11", IDCR1, DDR0_11}, + {"DDR0_12", IDCR1, DDR0_12}, + {"DDR0_14", IDCR1, DDR0_14}, + {"DDR0_17", IDCR1, DDR0_17}, + {"DDR0_18", IDCR1, DDR0_18}, + {"DDR0_19", IDCR1, DDR0_19}, + {"DDR0_20", IDCR1, DDR0_20}, + {"DDR0_21", IDCR1, DDR0_21}, + {"DDR0_22", IDCR1, DDR0_22}, + {"DDR0_23", IDCR1, DDR0_23}, + {"DDR0_24", IDCR1, DDR0_24}, + {"DDR0_25", IDCR1, DDR0_25}, + {"DDR0_26", IDCR1, DDR0_26}, + {"DDR0_27", IDCR1, DDR0_27}, + {"DDR0_28", IDCR1, DDR0_28}, + {"DDR0_31", IDCR1, DDR0_31}, + {"DDR0_32", IDCR1, DDR0_32}, + {"DDR0_33", IDCR1, DDR0_33}, + {"DDR0_34", IDCR1, DDR0_34}, + {"DDR0_35", IDCR1, DDR0_35}, + {"DDR0_36", IDCR1, DDR0_36}, + {"DDR0_37", IDCR1, DDR0_37}, + {"DDR0_38", IDCR1, DDR0_38}, + {"DDR0_39", IDCR1, DDR0_39}, + {"DDR0_40", IDCR1, DDR0_40}, + {"DDR0_41", IDCR1, DDR0_41}, + {"DDR0_42", IDCR1, DDR0_42}, + {"DDR0_43", IDCR1, DDR0_43}, + {"DDR0_44", IDCR1, DDR0_44}, + {"CPR0_ICFG", IDCR5, CPR0_ICFG}, + {"CPR0_MALD", IDCR5, CPR0_MALD}, + {"CPR0_OPBD00", IDCR5, CPR0_OPBD0}, + {"CPR0_PERD0", IDCR5, CPR0_PERD}, + {"CPR0_PLLC0", IDCR5, CPR0_PLLC}, + {"CPR0_PLLD0", IDCR5, CPR0_PLLD}, + {"CPR0_PRIMAD0", IDCR5, CPR0_PRIMAD0}, + {"CPR0_PRIMBD0", IDCR5, CPR0_PRIMBD0}, + {"CPR0_SPCID", IDCR5, CPR0_SPCID}, + {"SPI0_MODE", MM, SPI0_MODE}, + {"IIC0_CLKDIV", MM, PCIL0_PMM1MA}, + {"PCIL0_PMM0MA", MM, PCIL0_PMM0MA}, + {"PCIL0_PMM1MA", MM, PCIL0_PMM1MA}, + {"PCIL0_PTM1LA", MM, PCIL0_PMM1MA}, + {"PCIL0_PTM1MS", MM, PCIL0_PTM1MS}, + {"PCIL0_PTM2LA", MM, PCIL0_PMM1MA}, + {"PCIL0_PTM2MS", MM, PCIL0_PTM2MS}, + {"ZMII0_FER", MM, ZMII0_FER}, + {"ZMII0_SSR", MM, ZMII0_SSR}, + {"EMAC0_IPGVR", MM, EMAC0_IPGVR}, + {"EMAC0_MR1", MM, EMAC0_MR1}, + {"EMAC0_PTR", MM, EMAC0_PTR}, + {"EMAC0_RWMR", MM, EMAC0_RWMR}, + {"EMAC0_STACR", MM, EMAC0_STACR}, + {"EMAC0_TMR0", MM, EMAC0_TMR0}, + {"EMAC0_TMR1", MM, EMAC0_TMR1}, + {"EMAC0_TRTR", MM, EMAC0_TRTR}, + {"EMAC1_MR1", MM, EMAC1_MR1}, + {"GPIO0_OR", MM, GPIO0_OR}, + {"GPIO1_OR", MM, GPIO1_OR}, + {"GPIO0_TCR", MM, GPIO0_TCR}, + {"GPIO1_TCR", MM, GPIO1_TCR}, + {"GPIO0_ODR", MM, GPIO0_ODR}, + {"GPIO1_ODR", MM, GPIO1_ODR}, + {"GPIO0_OSRL", MM, GPIO0_OSRL}, + {"GPIO0_OSRH", MM, GPIO0_OSRH}, + {"GPIO1_OSRL", MM, GPIO1_OSRL}, + {"GPIO1_OSRH", MM, GPIO1_OSRH}, + {"GPIO0_TSRL", MM, GPIO0_TSRL}, + {"GPIO0_TSRH", MM, GPIO0_TSRH}, + {"GPIO1_TSRL", MM, GPIO1_TSRL}, + {"GPIO1_TSRH", MM, GPIO1_TSRH}, + {"GPIO0_IR", MM, GPIO0_IR}, + {"GPIO1_IR", MM, GPIO1_IR}, + {"GPIO0_ISR1L", MM, GPIO0_ISR1L}, + {"GPIO0_ISR1H", MM, GPIO0_ISR1H}, + {"GPIO1_ISR1L", MM, GPIO1_ISR1L}, + {"GPIO1_ISR1H", MM, GPIO1_ISR1H}, + {"GPIO0_ISR2L", MM, GPIO0_ISR2L}, + {"GPIO0_ISR2H", MM, GPIO0_ISR2H}, + {"GPIO1_ISR2L", MM, GPIO1_ISR2L}, + {"GPIO1_ISR2H", MM, GPIO1_ISR2H}, + {"GPIO0_ISR3L", MM, GPIO0_ISR3L}, + {"GPIO0_ISR3H", MM, GPIO0_ISR3H}, + {"GPIO1_ISR3L", MM, GPIO1_ISR3L}, + {"GPIO1_ISR3H", MM, GPIO1_ISR3H}, + {"SDR0_USB2PHY0CR", IDCR6, SDR0_USB2PHY0CR}, + {"SDR0_USB2H0CR", IDCR6, SDR0_USB2H0CR}, + {"SDR0_USB2D0CR", IDCR6, SDR0_USB2D0CR}, +#endif +}; + +/* + * CPU Register dump of PPC4xx HW configuration registers + * Output: first all DCR-registers, then in order of struct ppc4xx_reg + */ +#define PRINT_DCR(dcr) printf("0x%08x %-16s: 0x%08x\n", dcr,#dcr, mfdcr(dcr)); + +void ppc4xx_reginfo(void) +{ + unsigned int i; + unsigned int n; + u32 value; + enum REGISTER_TYPE type; +#if defined (CONFIG_405EP) + printf("Dump PPC405EP HW configuration registers\n\n"); +#elif CONFIG_405GP + printf ("Dump 405GP HW configuration registers\n\n"); +#elif CONFIG_440EPX + printf("Dump PPC440EPx HW configuration registers\n\n"); +#endif + printf("MSR: 0x%08x\n", mfmsr()); + + printf ("\nUniversal Interrupt Controller Regs\n"); + PRINT_DCR(UIC0SR); + PRINT_DCR(UIC0ER); + PRINT_DCR(UIC0CR); + PRINT_DCR(UIC0PR); + PRINT_DCR(UIC0TR); + PRINT_DCR(UIC0MSR); + PRINT_DCR(UIC0VR); + PRINT_DCR(UIC0VCR); + +#if (UIC_MAX > 1) + PRINT_DCR(UIC2SR); + PRINT_DCR(UIC2ER); + PRINT_DCR(UIC2CR); + PRINT_DCR(UIC2PR); + PRINT_DCR(UIC2TR); + PRINT_DCR(UIC2MSR); + PRINT_DCR(UIC2VR); + PRINT_DCR(UIC2VCR); +#endif + +#if (UIC_MAX > 2) + PRINT_DCR(UIC2SR); + PRINT_DCR(UIC2ER); + PRINT_DCR(UIC2CR); + PRINT_DCR(UIC2PR); + PRINT_DCR(UIC2TR); + PRINT_DCR(UIC2MSR); + PRINT_DCR(UIC2VR); + PRINT_DCR(UIC2VCR); +#endif + +#if (UIC_MAX > 3) + PRINT_DCR(UIC3SR); + PRINT_DCR(UIC3ER); + PRINT_DCR(UIC3CR); + PRINT_DCR(UIC3PR); + PRINT_DCR(UIC3TR); + PRINT_DCR(UIC3MSR); + PRINT_DCR(UIC3VR); + PRINT_DCR(UIC3VCR); +#endif + +#if defined (CONFIG_405EP) || defined (CONFIG_405GP) + printf ("\n\nDMA Channels\n"); + PRINT_DCR(DMASR); + PRINT_DCR(DMASGC); + PRINT_DCR(DMAADR); + + PRINT_DCR(DMACR0); + PRINT_DCR(DMACT0); + PRINT_DCR(DMADA0); + PRINT_DCR(DMASA0); + PRINT_DCR(DMASB0); + + PRINT_DCR(DMACR1); + PRINT_DCR(DMACT1); + PRINT_DCR(DMADA1); + PRINT_DCR(DMASA1); + PRINT_DCR(DMASB1); + + PRINT_DCR(DMACR2); + PRINT_DCR(DMACT2); + PRINT_DCR(DMADA2); + PRINT_DCR(DMASA2); + PRINT_DCR(DMASB2); + + PRINT_DCR(DMACR3); + PRINT_DCR(DMACT3); + PRINT_DCR(DMADA3); + PRINT_DCR(DMASA3); + PRINT_DCR(DMASB3); +#endif + + printf ("\n\nVarious HW-Configuration registers\n"); +#if defined (CONFIG_440EPX) + PRINT_DCR(MAL0_CFG); + PRINT_DCR(CPM0_ER); + PRINT_DCR(CPM1_ER); + PRINT_DCR(PLB4A0_ACR); + PRINT_DCR(PLB4A1_ACR); + PRINT_DCR(PLB3A0_ACR); + PRINT_DCR(OPB2PLB40_BCTRL); + PRINT_DCR(P4P3BO0_CFG); +#endif + n = sizeof(ppc4xx_reg) / sizeof(ppc4xx_reg[0]); + for (i = 0; i < n; i++) { + value = 0; + type = ppc4xx_reg[i].type; + switch (type) { + case IDCR1: /* Indirect via SDRAM0_CFGADDR/DDR0_CFGDATA */ + mtdcr(SDRAM0_CFGADDR, ppc4xx_reg[i].address); + value = mfdcr(SDRAM0_CFGDATA); + break; + case IDCR2: /* Indirect via EBC0_CFGADDR/EBC0_CFGDATA */ + mtdcr(EBC0_CFGADDR, ppc4xx_reg[i].address); + value = mfdcr(EBC0_CFGDATA); + break; + case IDCR5: /* Indirect via CPR0_CFGADDR/CPR0_CFGDATA */ + mtdcr(CPR0_CFGADDR, ppc4xx_reg[i].address); + value = mfdcr(CPR0_CFGDATA); + break; + case IDCR6: /* Indirect via SDR0_CFGADDR/SDR0_CFGDATA */ + mtdcr(SDR0_CFGADDR, ppc4xx_reg[i].address); + value = mfdcr(SDR0_CFGDATA); + break; + case MM: /* Directly Accessed MMIO Register */ + value = in_be32((const volatile unsigned __iomem *) + ppc4xx_reg[i].address); + break; + default: + printf("\nERROR: struct entry %d: unknown register" + "type\n", i); + break; + } + printf("0x%08x %-16s: 0x%08x\n",ppc4xx_reg[i].address, + ppc4xx_reg[i].name, value); + } +} diff --git a/arch/ppc/cpu/ppc4xx/resetvec.S b/arch/ppc/cpu/ppc4xx/resetvec.S new file mode 100644 index 0000000..b3308bd --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/resetvec.S @@ -0,0 +1,12 @@ +/* Copyright MontaVista Software Incorporated, 2000 */ +#include <config.h> + .section .resetvec,"ax" +#if defined(CONFIG_440) + b _start_440 +#else +#if defined(CONFIG_BOOT_PCI) && defined(CONFIG_MIP405) + b _start_pci +#else + b _start +#endif +#endif diff --git a/arch/ppc/cpu/ppc4xx/sdram.c b/arch/ppc/cpu/ppc4xx/sdram.c new file mode 100644 index 0000000..30c6e0e --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/sdram.c @@ -0,0 +1,468 @@ +/* + * (C) Copyright 2005-2007 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * (C) Copyright 2006 + * DAVE Srl <www.dave-tech.it> + * + * (C) Copyright 2002-2004 + * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <ppc4xx.h> +#include <asm/processor.h> +#include "sdram.h" +#include "ecc.h" + +#ifdef CONFIG_SDRAM_BANK0 + +#ifndef CONFIG_440 + +#ifndef CONFIG_SYS_SDRAM_TABLE +sdram_conf_t mb0cf[] = { + {(128 << 20), 13, 0x000A4001}, /* (0-128MB) Address Mode 3, 13x10(4) */ + {(64 << 20), 13, 0x00084001}, /* (0-64MB) Address Mode 3, 13x9(4) */ + {(32 << 20), 12, 0x00062001}, /* (0-32MB) Address Mode 2, 12x9(4) */ + {(16 << 20), 12, 0x00046001}, /* (0-16MB) Address Mode 4, 12x8(4) */ + {(4 << 20), 11, 0x00008001}, /* (0-4MB) Address Mode 5, 11x8(2) */ +}; +#else +sdram_conf_t mb0cf[] = CONFIG_SYS_SDRAM_TABLE; +#endif + +#define N_MB0CF (sizeof(mb0cf) / sizeof(mb0cf[0])) + +#ifdef CONFIG_SYS_SDRAM_CASL +static ulong ns2clks(ulong ns) +{ + ulong bus_period_x_10 = ONE_BILLION / (get_bus_freq(0) / 10); + + return ((ns * 10) + bus_period_x_10) / bus_period_x_10; +} +#endif /* CONFIG_SYS_SDRAM_CASL */ + +static ulong compute_sdtr1(ulong speed) +{ +#ifdef CONFIG_SYS_SDRAM_CASL + ulong tmp; + ulong sdtr1 = 0; + + /* CASL */ + if (CONFIG_SYS_SDRAM_CASL < 2) + sdtr1 |= (1 << SDRAM0_TR_CASL); + else + if (CONFIG_SYS_SDRAM_CASL > 4) + sdtr1 |= (3 << SDRAM0_TR_CASL); + else + sdtr1 |= ((CONFIG_SYS_SDRAM_CASL-1) << SDRAM0_TR_CASL); + + /* PTA */ + tmp = ns2clks(CONFIG_SYS_SDRAM_PTA); + if ((tmp >= 2) && (tmp <= 4)) + sdtr1 |= ((tmp-1) << SDRAM0_TR_PTA); + else + sdtr1 |= ((4-1) << SDRAM0_TR_PTA); + + /* CTP */ + tmp = ns2clks(CONFIG_SYS_SDRAM_CTP); + if ((tmp >= 2) && (tmp <= 4)) + sdtr1 |= ((tmp-1) << SDRAM0_TR_CTP); + else + sdtr1 |= ((4-1) << SDRAM0_TR_CTP); + + /* LDF */ + tmp = ns2clks(CONFIG_SYS_SDRAM_LDF); + if ((tmp >= 2) && (tmp <= 4)) + sdtr1 |= ((tmp-1) << SDRAM0_TR_LDF); + else + sdtr1 |= ((2-1) << SDRAM0_TR_LDF); + + /* RFTA */ + tmp = ns2clks(CONFIG_SYS_SDRAM_RFTA); + if ((tmp >= 4) && (tmp <= 10)) + sdtr1 |= ((tmp-4) << SDRAM0_TR_RFTA); + else + sdtr1 |= ((10-4) << SDRAM0_TR_RFTA); + + /* RCD */ + tmp = ns2clks(CONFIG_SYS_SDRAM_RCD); + if ((tmp >= 2) && (tmp <= 4)) + sdtr1 |= ((tmp-1) << SDRAM0_TR_RCD); + else + sdtr1 |= ((4-1) << SDRAM0_TR_RCD); + + return sdtr1; +#else /* CONFIG_SYS_SDRAM_CASL */ + /* + * If no values are configured in the board config file + * use the default values, which seem to be ok for most + * boards. + * + * REMARK: + * For new board ports we strongly recommend to define the + * correct values for the used SDRAM chips in your board + * config file (see PPChameleonEVB.h) + */ + if (speed > 100000000) { + /* + * 133 MHz SDRAM + */ + return 0x01074015; + } else { + /* + * default: 100 MHz SDRAM + */ + return 0x0086400d; + } +#endif /* CONFIG_SYS_SDRAM_CASL */ +} + +/* refresh is expressed in ms */ +static ulong compute_rtr(ulong speed, ulong rows, ulong refresh) +{ +#ifdef CONFIG_SYS_SDRAM_CASL + ulong tmp; + + tmp = ((refresh*1000*1000) / (1 << rows)) * (speed / 1000); + tmp /= 1000000; + + return ((tmp & 0x00003FF8) << 16); +#else /* CONFIG_SYS_SDRAM_CASL */ + if (speed > 100000000) { + /* + * 133 MHz SDRAM + */ + return 0x07f00000; + } else { + /* + * default: 100 MHz SDRAM + */ + return 0x05f00000; + } +#endif /* CONFIG_SYS_SDRAM_CASL */ +} + +/* + * Autodetect onboard SDRAM on 405 platforms + */ +phys_size_t initdram(int board_type) +{ + ulong speed; + ulong sdtr1; + int i; + + /* + * Determine SDRAM speed + */ + speed = get_bus_freq(0); /* parameter not used on ppc4xx */ + + /* + * sdtr1 (register SDRAM0_TR) must take into account timings listed + * in SDRAM chip datasheet. rtr (register SDRAM0_RTR) must take into + * account actual SDRAM size. So we can set up sdtr1 according to what + * is specified in board configuration file while rtr dependds on SDRAM + * size we are assuming before detection. + */ + sdtr1 = compute_sdtr1(speed); + + for (i=0; i<N_MB0CF; i++) { + /* + * Disable memory controller. + */ + mtsdram(SDRAM0_CFG, 0x00000000); + + /* + * Set MB0CF for bank 0. + */ + mtsdram(SDRAM0_B0CR, mb0cf[i].reg); + mtsdram(SDRAM0_TR, sdtr1); + mtsdram(SDRAM0_RTR, compute_rtr(speed, mb0cf[i].rows, 64)); + + udelay(200); + + /* + * Set memory controller options reg, MCOPT1. + * Set DC_EN to '1' and BRD_PRF to '01' for 16 byte PLB Burst + * read/prefetch. + */ + mtsdram(SDRAM0_CFG, 0x80800000); + + udelay(10000); + + if (get_ram_size(0, mb0cf[i].size) == mb0cf[i].size) { + phys_size_t size = mb0cf[i].size; + + /* + * OK, size detected. Enable second bank if + * defined (assumes same type as bank 0) + */ +#ifdef CONFIG_SDRAM_BANK1 + mtsdram(SDRAM0_CFG, 0x00000000); + mtsdram(SDRAM0_B1CR, mb0cf[i].size | mb0cf[i].reg); + mtsdram(SDRAM0_CFG, 0x80800000); + udelay(10000); + + /* + * Check if 2nd bank is really available. + * If the size not equal to the size of the first + * bank, then disable the 2nd bank completely. + */ + if (get_ram_size((long *)mb0cf[i].size, mb0cf[i].size) != + mb0cf[i].size) { + mtsdram(SDRAM0_B1CR, 0); + mtsdram(SDRAM0_CFG, 0); + } else { + /* + * We have two identical banks, so the size + * is twice the bank size + */ + size = 2 * size; + } +#endif + + /* + * OK, size detected -> all done + */ + return size; + } + } + + return 0; +} + +#else /* CONFIG_440 */ + +/* + * Define some default values. Those can be overwritten in the + * board config file. + */ + +#ifndef CONFIG_SYS_SDRAM_TABLE +sdram_conf_t mb0cf[] = { + {(256 << 20), 13, 0x000C4001}, /* 256MB mode 3, 13x10(4) */ + {(128 << 20), 13, 0x000A4001}, /* 128MB mode 3, 13x10(4) */ + {(64 << 20), 12, 0x00082001} /* 64MB mode 2, 12x9(4) */ +}; +#else +sdram_conf_t mb0cf[] = CONFIG_SYS_SDRAM_TABLE; +#endif + +#ifndef CONFIG_SYS_SDRAM0_TR0 +#define CONFIG_SYS_SDRAM0_TR0 0x41094012 +#endif + +#ifndef CONFIG_SYS_SDRAM0_WDDCTR +#define CONFIG_SYS_SDRAM0_WDDCTR 0x00000000 /* wrcp=0 dcd=0 */ +#endif + +#ifndef CONFIG_SYS_SDRAM0_RTR +#define CONFIG_SYS_SDRAM0_RTR 0x04100000 /* 7.8us @ 133MHz PLB */ +#endif + +#ifndef CONFIG_SYS_SDRAM0_CFG0 +#define CONFIG_SYS_SDRAM0_CFG0 0x82000000 /* DCEN=1, PMUD=0, 64-bit */ +#endif + +#define N_MB0CF (sizeof(mb0cf) / sizeof(mb0cf[0])) + +#define NUM_TRIES 64 +#define NUM_READS 10 + +static void sdram_tr1_set(int ram_address, int* tr1_value) +{ + int i; + int j, k; + volatile unsigned int* ram_pointer = (unsigned int *)ram_address; + int first_good = -1, last_bad = 0x1ff; + + unsigned long test[NUM_TRIES] = { + 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, + 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, + 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, + 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, + 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, + 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, + 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, + 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, + 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, + 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, + 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, + 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, + 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, + 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, + 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55 }; + + /* go through all possible SDRAM0_TR1[RDCT] values */ + for (i=0; i<=0x1ff; i++) { + /* set the current value for TR1 */ + mtsdram(SDRAM0_TR1, (0x80800800 | i)); + + /* write values */ + for (j=0; j<NUM_TRIES; j++) { + ram_pointer[j] = test[j]; + + /* clear any cache at ram location */ + __asm__("dcbf 0,%0": :"r" (&ram_pointer[j])); + } + + /* read values back */ + for (j=0; j<NUM_TRIES; j++) { + for (k=0; k<NUM_READS; k++) { + /* clear any cache at ram location */ + __asm__("dcbf 0,%0": :"r" (&ram_pointer[j])); + + if (ram_pointer[j] != test[j]) + break; + } + + /* read error */ + if (k != NUM_READS) + break; + } + + /* we have a SDRAM0_TR1[RDCT] that is part of the window */ + if (j == NUM_TRIES) { + if (first_good == -1) + first_good = i; /* found beginning of window */ + } else { /* bad read */ + /* if we have not had a good read then don't care */ + if (first_good != -1) { + /* first failure after a good read */ + last_bad = i-1; + break; + } + } + } + + /* return the current value for TR1 */ + *tr1_value = (first_good + last_bad) / 2; +} + +/* + * Autodetect onboard DDR SDRAM on 440 platforms + * + * NOTE: Some of the hardcoded values are hardware dependant, + * so this should be extended for other future boards + * using this routine! + */ +phys_size_t initdram(int board_type) +{ + int i; + int tr1_bank1; + +#if defined(CONFIG_440GX) || defined(CONFIG_440EP) || \ + defined(CONFIG_440GR) || defined(CONFIG_440SP) + /* + * Soft-reset SDRAM controller. + */ + mtsdr(SDR0_SRST, SDR0_SRST_DMC); + mtsdr(SDR0_SRST, 0x00000000); +#endif + + for (i=0; i<N_MB0CF; i++) { + /* + * Disable memory controller. + */ + mtsdram(SDRAM0_CFG0, 0x00000000); + + /* + * Setup some default + */ + mtsdram(SDRAM0_UABBA, 0x00000000); /* ubba=0 (default) */ + mtsdram(SDRAM0_SLIO, 0x00000000); /* rdre=0 wrre=0 rarw=0 */ + mtsdram(SDRAM0_DEVOPT, 0x00000000); /* dll=0 ds=0 (normal) */ + mtsdram(SDRAM0_WDDCTR, CONFIG_SYS_SDRAM0_WDDCTR); + mtsdram(SDRAM0_CLKTR, 0x40000000); /* clkp=1 (90 deg wr) dcdt=0 */ + + /* + * Following for CAS Latency = 2.5 @ 133 MHz PLB + */ + mtsdram(SDRAM0_B0CR, mb0cf[i].reg); + mtsdram(SDRAM0_TR0, CONFIG_SYS_SDRAM0_TR0); + mtsdram(SDRAM0_TR1, 0x80800800); /* SS=T2 SL=STAGE 3 CD=1 CT=0x00*/ + mtsdram(SDRAM0_RTR, CONFIG_SYS_SDRAM0_RTR); + mtsdram(SDRAM0_CFG1, 0x00000000); /* Self-refresh exit, disable PM*/ + udelay(400); /* Delay 200 usecs (min) */ + + /* + * Enable the controller, then wait for DCEN to complete + */ + mtsdram(SDRAM0_CFG0, CONFIG_SYS_SDRAM0_CFG0); + udelay(10000); + + if (get_ram_size(0, mb0cf[i].size) == mb0cf[i].size) { + phys_size_t size = mb0cf[i].size; + /* + * Optimize TR1 to current hardware environment + */ + sdram_tr1_set(0x00000000, &tr1_bank1); + mtsdram(SDRAM0_TR1, (tr1_bank1 | 0x80800800)); + + + /* + * OK, size detected. Enable second bank if + * defined (assumes same type as bank 0) + */ +#ifdef CONFIG_SDRAM_BANK1 + mtsdram(SDRAM0_CFG0, 0); + mtsdram(SDRAM0_B1CR, mb0cf[i].size | mb0cf[i].reg); + mtsdram(SDRAM0_CFG0, CONFIG_SYS_SDRAM0_CFG0); + udelay(10000); + + /* + * Check if 2nd bank is really available. + * If the size not equal to the size of the first + * bank, then disable the 2nd bank completely. + */ + if (get_ram_size((long *)mb0cf[i].size, mb0cf[i].size) + != mb0cf[i].size) { + mtsdram(SDRAM0_CFG0, 0); + mtsdram(SDRAM0_B1CR, 0); + mtsdram(SDRAM0_CFG0, CONFIG_SYS_SDRAM0_CFG0); + udelay(10000); + } else { + /* + * We have two identical banks, so the size + * is twice the bank size + */ + size = 2 * size; + } +#endif + +#ifdef CONFIG_SDRAM_ECC + ecc_init(0, size); +#endif + + /* + * OK, size detected -> all done + */ + return size; + } + } + + return 0; /* nothing found ! */ +} + +#endif /* CONFIG_440 */ + +#endif /* CONFIG_SDRAM_BANK0 */ diff --git a/arch/ppc/cpu/ppc4xx/sdram.h b/arch/ppc/cpu/ppc4xx/sdram.h new file mode 100644 index 0000000..bea3376 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/sdram.h @@ -0,0 +1,76 @@ +/* + * (C) Copyright 2006 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * (C) Copyright 2006 + * DAVE Srl <www.dave-tech.it> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _SDRAM_H_ +#define _SDRAM_H_ + +#include <config.h> + +#define ONE_BILLION 1000000000 + +struct sdram_conf_s { + unsigned long size; + int rows; + unsigned long reg; +}; + +typedef struct sdram_conf_s sdram_conf_t; + +/* Bitfields offsets */ +#define SDRAM0_TR_CASL (31 - 8) +#define SDRAM0_TR_PTA (31 - 13) +#define SDRAM0_TR_CTP (31 - 15) +#define SDRAM0_TR_LDF (31 - 17) +#define SDRAM0_TR_RFTA (31 - 29) +#define SDRAM0_TR_RCD (31 - 31) + +#ifdef CONFIG_SYS_SDRAM_CL +/* SDRAM timings [ns] according to AMCC/IBM names (see SDRAM_faq.doc) */ +#define CONFIG_SYS_SDRAM_CASL CONFIG_SYS_SDRAM_CL +#define CONFIG_SYS_SDRAM_PTA CONFIG_SYS_SDRAM_tRP +#define CONFIG_SYS_SDRAM_CTP (CONFIG_SYS_SDRAM_tRC - CONFIG_SYS_SDRAM_tRCD - CONFIG_SYS_SDRAM_tRP) +#define CONFIG_SYS_SDRAM_LDF 0 +#ifdef CONFIG_SYS_SDRAM_tRFC +#define CONFIG_SYS_SDRAM_RFTA CONFIG_SYS_SDRAM_tRFC +#else +#define CONFIG_SYS_SDRAM_RFTA CONFIG_SYS_SDRAM_tRC +#endif +#define CONFIG_SYS_SDRAM_RCD CONFIG_SYS_SDRAM_tRCD +#endif /* #ifdef CONFIG_SYS_SDRAM_CL */ + +/* + * Some defines for the 440 DDR controller + */ +#define SDRAM_CFG0_DC_EN 0x80000000 /* SDRAM Controller Enable */ +#define SDRAM_CFG0_MEMCHK 0x30000000 /* Memory data error checking mask*/ +#define SDRAM_CFG0_MEMCHK_NON 0x00000000 /* No ECC generation */ +#define SDRAM_CFG0_MEMCHK_GEN 0x20000000 /* ECC generation */ +#define SDRAM_CFG0_MEMCHK_CHK 0x30000000 /* ECC generation and checking */ +#define SDRAM_CFG0_DRAMWDTH 0x02000000 /* DRAM width mask */ +#define SDRAM_CFG0_DRAMWDTH_32 0x00000000 /* 32 bits */ +#define SDRAM_CFG0_DRAMWDTH_64 0x02000000 /* 64 bits */ + +#endif diff --git a/arch/ppc/cpu/ppc4xx/speed.c b/arch/ppc/cpu/ppc4xx/speed.c new file mode 100644 index 0000000..906face --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/speed.c @@ -0,0 +1,1177 @@ +/* + * (C) Copyright 2000-2008 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <ppc_asm.tmpl> +#include <ppc4xx.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +#define ONE_BILLION 1000000000 +#ifdef DEBUG +#define DEBUGF(fmt,args...) printf(fmt ,##args) +#else +#define DEBUGF(fmt,args...) +#endif + +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) + +#if defined(CONFIG_405GP) || defined(CONFIG_405CR) + +void get_sys_info (PPC4xx_SYS_INFO * sysInfo) +{ + unsigned long pllmr; + unsigned long sysClkPeriodPs = ONE_BILLION / (CONFIG_SYS_CLK_FREQ / 1000); + uint pvr = get_pvr(); + unsigned long psr; + unsigned long m; + + /* + * Read PLL Mode register + */ + pllmr = mfdcr (CPC0_PLLMR); + + /* + * Read Pin Strapping register + */ + psr = mfdcr (CPC0_PSR); + + /* + * Determine FWD_DIV. + */ + sysInfo->pllFwdDiv = 8 - ((pllmr & PLLMR_FWD_DIV_MASK) >> 29); + + /* + * Determine FBK_DIV. + */ + sysInfo->pllFbkDiv = ((pllmr & PLLMR_FB_DIV_MASK) >> 25); + if (sysInfo->pllFbkDiv == 0) { + sysInfo->pllFbkDiv = 16; + } + + /* + * Determine PLB_DIV. + */ + sysInfo->pllPlbDiv = ((pllmr & PLLMR_CPU_TO_PLB_MASK) >> 17) + 1; + + /* + * Determine PCI_DIV. + */ + sysInfo->pllPciDiv = ((pllmr & PLLMR_PCI_TO_PLB_MASK) >> 13) + 1; + + /* + * Determine EXTBUS_DIV. + */ + sysInfo->pllExtBusDiv = ((pllmr & PLLMR_EXB_TO_PLB_MASK) >> 11) + 2; + + /* + * Determine OPB_DIV. + */ + sysInfo->pllOpbDiv = ((pllmr & PLLMR_OPB_TO_PLB_MASK) >> 15) + 1; + + /* + * Check if PPC405GPr used (mask minor revision field) + */ + if ((pvr & 0xfffffff0) == (PVR_405GPR_RB & 0xfffffff0)) { + /* + * Determine FWD_DIV B (only PPC405GPr with new mode strapping). + */ + sysInfo->pllFwdDivB = 8 - (pllmr & PLLMR_FWDB_DIV_MASK); + + /* + * Determine factor m depending on PLL feedback clock source + */ + if (!(psr & PSR_PCI_ASYNC_EN)) { + if (psr & PSR_NEW_MODE_EN) { + /* + * sync pci clock used as feedback (new mode) + */ + m = 1 * sysInfo->pllFwdDivB * 2 * sysInfo->pllPciDiv; + } else { + /* + * sync pci clock used as feedback (legacy mode) + */ + m = 1 * sysInfo->pllFwdDivB * sysInfo->pllPlbDiv * sysInfo->pllPciDiv; + } + } else if (psr & PSR_NEW_MODE_EN) { + if (psr & PSR_PERCLK_SYNC_MODE_EN) { + /* + * PerClk used as feedback (new mode) + */ + m = 1 * sysInfo->pllFwdDivB * 2 * sysInfo->pllExtBusDiv; + } else { + /* + * CPU clock used as feedback (new mode) + */ + m = sysInfo->pllFbkDiv * sysInfo->pllFwdDiv; + } + } else if (sysInfo->pllExtBusDiv == sysInfo->pllFbkDiv) { + /* + * PerClk used as feedback (legacy mode) + */ + m = 1 * sysInfo->pllFwdDivB * sysInfo->pllPlbDiv * sysInfo->pllExtBusDiv; + } else { + /* + * PLB clock used as feedback (legacy mode) + */ + m = sysInfo->pllFbkDiv * sysInfo->pllFwdDivB * sysInfo->pllPlbDiv; + } + + sysInfo->freqVCOHz = (1000000000000LL * (unsigned long long)m) / + (unsigned long long)sysClkPeriodPs; + sysInfo->freqProcessor = sysInfo->freqVCOHz / sysInfo->pllFwdDiv; + sysInfo->freqPLB = sysInfo->freqVCOHz / (sysInfo->pllFwdDivB * sysInfo->pllPlbDiv); + } else { + /* + * Check pllFwdDiv to see if running in bypass mode where the CPU speed + * is equal to the 405GP SYS_CLK_FREQ. If not in bypass mode, check VCO + * to make sure it is within the proper range. + * spec: VCO = SYS_CLOCK x FBKDIV x PLBDIV x FWDDIV + * Note freqVCO is calculated in MHz to avoid errors introduced by rounding. + */ + if (sysInfo->pllFwdDiv == 1) { + sysInfo->freqProcessor = CONFIG_SYS_CLK_FREQ; + sysInfo->freqPLB = CONFIG_SYS_CLK_FREQ / sysInfo->pllPlbDiv; + } else { + sysInfo->freqVCOHz = ( 1000000000000LL * + (unsigned long long)sysInfo->pllFwdDiv * + (unsigned long long)sysInfo->pllFbkDiv * + (unsigned long long)sysInfo->pllPlbDiv + ) / (unsigned long long)sysClkPeriodPs; + sysInfo->freqPLB = (ONE_BILLION / ((sysClkPeriodPs * 10) / + sysInfo->pllFbkDiv)) * 10000; + sysInfo->freqProcessor = sysInfo->freqPLB * sysInfo->pllPlbDiv; + } + } + + sysInfo->freqOPB = sysInfo->freqPLB / sysInfo->pllOpbDiv; + sysInfo->freqEBC = sysInfo->freqPLB / sysInfo->pllExtBusDiv; + sysInfo->freqUART = sysInfo->freqProcessor; +} + + +/******************************************** + * get_PCI_freq + * return PCI bus freq in Hz + *********************************************/ +ulong get_PCI_freq (void) +{ + ulong val; + PPC4xx_SYS_INFO sys_info; + + get_sys_info (&sys_info); + val = sys_info.freqPLB / sys_info.pllPciDiv; + return val; +} + + +#elif defined(CONFIG_440) + +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ + defined(CONFIG_460SX) +static u8 pll_fwdv_multi_bits[] = { + /* values for: 1 - 16 */ + 0x00, 0x01, 0x0f, 0x04, 0x09, 0x0a, 0x0d, 0x0e, 0x03, 0x0c, + 0x05, 0x08, 0x07, 0x02, 0x0b, 0x06 +}; + +u32 get_cpr0_fwdv(unsigned long cpr_reg_fwdv) +{ + u32 index; + + for (index = 0; index < ARRAY_SIZE(pll_fwdv_multi_bits); index++) + if (cpr_reg_fwdv == (u32)pll_fwdv_multi_bits[index]) + return index + 1; + + return 0; +} + +static u8 pll_fbdv_multi_bits[] = { + /* values for: 1 - 100 */ + 0x00, 0xff, 0x7e, 0xfd, 0x7a, 0xf5, 0x6a, 0xd5, 0x2a, 0xd4, + 0x29, 0xd3, 0x26, 0xcc, 0x19, 0xb3, 0x67, 0xce, 0x1d, 0xbb, + 0x77, 0xee, 0x5d, 0xba, 0x74, 0xe9, 0x52, 0xa5, 0x4b, 0x96, + 0x2c, 0xd8, 0x31, 0xe3, 0x46, 0x8d, 0x1b, 0xb7, 0x6f, 0xde, + 0x3d, 0xfb, 0x76, 0xed, 0x5a, 0xb5, 0x6b, 0xd6, 0x2d, 0xdb, + 0x36, 0xec, 0x59, 0xb2, 0x64, 0xc9, 0x12, 0xa4, 0x48, 0x91, + 0x23, 0xc7, 0x0e, 0x9c, 0x38, 0xf0, 0x61, 0xc2, 0x05, 0x8b, + 0x17, 0xaf, 0x5f, 0xbe, 0x7c, 0xf9, 0x72, 0xe5, 0x4a, 0x95, + 0x2b, 0xd7, 0x2e, 0xdc, 0x39, 0xf3, 0x66, 0xcd, 0x1a, 0xb4, + 0x68, 0xd1, 0x22, 0xc4, 0x09, 0x93, 0x27, 0xcf, 0x1e, 0xbc, + /* values for: 101 - 200 */ + 0x78, 0xf1, 0x62, 0xc5, 0x0a, 0x94, 0x28, 0xd0, 0x21, 0xc3, + 0x06, 0x8c, 0x18, 0xb0, 0x60, 0xc1, 0x02, 0x84, 0x08, 0x90, + 0x20, 0xc0, 0x01, 0x83, 0x07, 0x8f, 0x1f, 0xbf, 0x7f, 0xfe, + 0x7d, 0xfa, 0x75, 0xea, 0x55, 0xaa, 0x54, 0xa9, 0x53, 0xa6, + 0x4c, 0x99, 0x33, 0xe7, 0x4e, 0x9d, 0x3b, 0xf7, 0x6e, 0xdd, + 0x3a, 0xf4, 0x69, 0xd2, 0x25, 0xcb, 0x16, 0xac, 0x58, 0xb1, + 0x63, 0xc6, 0x0d, 0x9b, 0x37, 0xef, 0x5e, 0xbd, 0x7b, 0xf6, + 0x6d, 0xda, 0x35, 0xeb, 0x56, 0xad, 0x5b, 0xb6, 0x6c, 0xd9, + 0x32, 0xe4, 0x49, 0x92, 0x24, 0xc8, 0x11, 0xa3, 0x47, 0x8e, + 0x1c, 0xb8, 0x70, 0xe1, 0x42, 0x85, 0x0b, 0x97, 0x2f, 0xdf, + /* values for: 201 - 255 */ + 0x3e, 0xfc, 0x79, 0xf2, 0x65, 0xca, 0x15, 0xab, 0x57, 0xae, + 0x5c, 0xb9, 0x73, 0xe6, 0x4d, 0x9a, 0x34, 0xe8, 0x51, 0xa2, + 0x44, 0x89, 0x13, 0xa7, 0x4f, 0x9e, 0x3c, 0xf8, 0x71, 0xe2, + 0x45, 0x8a, 0x14, 0xa8, 0x50, 0xa1, 0x43, 0x86, 0x0c, 0x98, + 0x30, 0xe0, 0x41, 0x82, 0x04, 0x88, 0x10, 0xa0, 0x40, 0x81, + 0x03, 0x87, 0x0f, 0x9f, 0x3f /* END */ +}; + +u32 get_cpr0_fbdv(unsigned long cpr_reg_fbdv) +{ + u32 index; + + for (index = 0; index < ARRAY_SIZE(pll_fbdv_multi_bits); index++) + if (cpr_reg_fbdv == (u32)pll_fbdv_multi_bits[index]) + return index + 1; + + return 0; +} + +/* + * AMCC_TODO: verify this routine against latest EAS, cause stuff changed + * with latest EAS + */ +void get_sys_info (sys_info_t * sysInfo) +{ + unsigned long strp0; + unsigned long strp1; + unsigned long temp; + unsigned long m; + unsigned long plbedv0; + + /* Extract configured divisors */ + mfsdr(SDR0_SDSTP0, strp0); + mfsdr(SDR0_SDSTP1, strp1); + + temp = ((strp0 & PLLSYS0_FWD_DIV_A_MASK) >> 4); + sysInfo->pllFwdDivA = get_cpr0_fwdv(temp); + + temp = (strp0 & PLLSYS0_FWD_DIV_B_MASK); + sysInfo->pllFwdDivB = get_cpr0_fwdv(temp); + + temp = (strp0 & PLLSYS0_FB_DIV_MASK) >> 8; + sysInfo->pllFbkDiv = get_cpr0_fbdv(temp); + + temp = (strp1 & PLLSYS0_OPB_DIV_MASK) >> 26; + sysInfo->pllOpbDiv = temp ? temp : 4; + + /* AMCC_TODO: verify the SDR0_SDSTP1.PERDV0 value sysInfo->pllExtBusDiv */ + temp = (strp1 & PLLSYS0_PERCLK_DIV_MASK) >> 24; + sysInfo->pllExtBusDiv = temp ? temp : 4; + + temp = (strp1 & PLLSYS0_PLBEDV0_DIV_MASK) >> 29; + plbedv0 = temp ? temp: 8; + + /* Calculate 'M' based on feedback source */ + temp = (strp0 & PLLSYS0_SEL_MASK) >> 27; + if (temp == 0) { + /* PLL internal feedback */ + m = sysInfo->pllFbkDiv; + } else { + /* PLL PerClk feedback */ + m = sysInfo->pllFwdDivA * plbedv0 * sysInfo->pllOpbDiv * + sysInfo->pllExtBusDiv; + } + + /* Now calculate the individual clocks */ + sysInfo->freqVCOMhz = (m * CONFIG_SYS_CLK_FREQ) + (m >> 1); + sysInfo->freqProcessor = sysInfo->freqVCOMhz/sysInfo->pllFwdDivA; + sysInfo->freqPLB = sysInfo->freqVCOMhz / sysInfo->pllFwdDivA / plbedv0; + sysInfo->freqOPB = sysInfo->freqPLB / sysInfo->pllOpbDiv; + sysInfo->freqEBC = sysInfo->freqOPB / sysInfo->pllExtBusDiv; + sysInfo->freqDDR = sysInfo->freqPLB; + sysInfo->freqUART = sysInfo->freqPLB; + + return; +} + +#elif defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) +void get_sys_info (sys_info_t *sysInfo) +{ + unsigned long temp; + unsigned long reg; + unsigned long lfdiv; + unsigned long m; + unsigned long prbdv0; + /* + WARNING: ASSUMES the following: + ENG=1 + PRADV0=1 + PRBDV0=1 + */ + + /* Decode CPR0_PLLD0 for divisors */ + mfcpr(CPR0_PLLD, reg); + temp = (reg & PLLD_FWDVA_MASK) >> 16; + sysInfo->pllFwdDivA = temp ? temp : 16; + temp = (reg & PLLD_FWDVB_MASK) >> 8; + sysInfo->pllFwdDivB = temp ? temp: 8 ; + temp = (reg & PLLD_FBDV_MASK) >> 24; + sysInfo->pllFbkDiv = temp ? temp : 32; + lfdiv = reg & PLLD_LFBDV_MASK; + + mfcpr(CPR0_OPBD0, reg); + temp = (reg & OPBDDV_MASK) >> 24; + sysInfo->pllOpbDiv = temp ? temp : 4; + + mfcpr(CPR0_PERD, reg); + temp = (reg & PERDV_MASK) >> 24; + sysInfo->pllExtBusDiv = temp ? temp : 8; + + mfcpr(CPR0_PRIMBD0, reg); + temp = (reg & PRBDV_MASK) >> 24; + prbdv0 = temp ? temp : 8; + + mfcpr(CPR0_SPCID, reg); + temp = (reg & SPCID_MASK) >> 24; + sysInfo->pllPciDiv = temp ? temp : 4; + + /* Calculate 'M' based on feedback source */ + mfsdr(SDR0_SDSTP0, reg); + temp = (reg & PLLSYS0_SEL_MASK) >> 27; + if (temp == 0) { /* PLL output */ + /* Figure which pll to use */ + mfcpr(CPR0_PLLC, reg); + temp = (reg & PLLC_SRC_MASK) >> 29; + if (!temp) /* PLLOUTA */ + m = sysInfo->pllFbkDiv * lfdiv * sysInfo->pllFwdDivA; + else /* PLLOUTB */ + m = sysInfo->pllFbkDiv * lfdiv * sysInfo->pllFwdDivB; + } + else if (temp == 1) /* CPU output */ + m = sysInfo->pllFbkDiv * sysInfo->pllFwdDivA; + else /* PerClk */ + m = sysInfo->pllExtBusDiv * sysInfo->pllOpbDiv * sysInfo->pllFwdDivB; + + /* Now calculate the individual clocks */ + sysInfo->freqVCOMhz = (m * CONFIG_SYS_CLK_FREQ) + (m>>1); + sysInfo->freqProcessor = sysInfo->freqVCOMhz/sysInfo->pllFwdDivA; + sysInfo->freqPLB = sysInfo->freqVCOMhz/sysInfo->pllFwdDivB/prbdv0; + sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv; + sysInfo->freqEBC = sysInfo->freqPLB/sysInfo->pllExtBusDiv; + sysInfo->freqPCI = sysInfo->freqPLB/sysInfo->pllPciDiv; + sysInfo->freqUART = sysInfo->freqPLB; + + /* Figure which timer source to use */ + if (mfspr(SPRN_CCR1) & 0x0080) { + /* External Clock, assume same as SYS_CLK */ + temp = sysInfo->freqProcessor / 2; /* Max extern clock speed */ + if (CONFIG_SYS_CLK_FREQ > temp) + sysInfo->freqTmrClk = temp; + else + sysInfo->freqTmrClk = CONFIG_SYS_CLK_FREQ; + } + else /* Internal clock */ + sysInfo->freqTmrClk = sysInfo->freqProcessor; +} + +/******************************************** + * get_PCI_freq + * return PCI bus freq in Hz + *********************************************/ +ulong get_PCI_freq (void) +{ + sys_info_t sys_info; + get_sys_info (&sys_info); + return sys_info.freqPCI; +} + +#elif !defined(CONFIG_440GX) && !defined(CONFIG_440SP) && !defined(CONFIG_440SPE) \ + && !defined(CONFIG_XILINX_440) +void get_sys_info (sys_info_t * sysInfo) +{ + unsigned long strp0; + unsigned long temp; + unsigned long m; + + /* Extract configured divisors */ + strp0 = mfdcr( CPC0_STRP0 ); + sysInfo->pllFwdDivA = 8 - ((strp0 & PLLSYS0_FWD_DIV_A_MASK) >> 15); + sysInfo->pllFwdDivB = 8 - ((strp0 & PLLSYS0_FWD_DIV_B_MASK) >> 12); + temp = (strp0 & PLLSYS0_FB_DIV_MASK) >> 18; + sysInfo->pllFbkDiv = temp ? temp : 16; + sysInfo->pllOpbDiv = 1 + ((strp0 & PLLSYS0_OPB_DIV_MASK) >> 10); + sysInfo->pllExtBusDiv = 1 + ((strp0 & PLLSYS0_EPB_DIV_MASK) >> 8); + + /* Calculate 'M' based on feedback source */ + if( strp0 & PLLSYS0_EXTSL_MASK ) + m = sysInfo->pllExtBusDiv * sysInfo->pllOpbDiv * sysInfo->pllFwdDivB; + else + m = sysInfo->pllFbkDiv * sysInfo->pllFwdDivA; + + /* Now calculate the individual clocks */ + sysInfo->freqVCOMhz = (m * CONFIG_SYS_CLK_FREQ) + (m>>1); + sysInfo->freqProcessor = sysInfo->freqVCOMhz/sysInfo->pllFwdDivA; + sysInfo->freqPLB = sysInfo->freqVCOMhz/sysInfo->pllFwdDivB; + if( get_pvr() == PVR_440GP_RB ) /* Rev B divs an extra 2 -- geez! */ + sysInfo->freqPLB >>= 1; + sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv; + sysInfo->freqEBC = sysInfo->freqOPB/sysInfo->pllExtBusDiv; + sysInfo->freqUART = sysInfo->freqPLB; +} +#else + +#if !defined(CONFIG_XILINX_440) +void get_sys_info (sys_info_t * sysInfo) +{ + unsigned long strp0; + unsigned long strp1; + unsigned long temp; + unsigned long temp1; + unsigned long lfdiv; + unsigned long m; + unsigned long prbdv0; + +#if defined(CONFIG_YUCCA) + unsigned long sys_freq; + unsigned long sys_per=0; + unsigned long msr; + unsigned long pci_clock_per; + unsigned long sdr_ddrpll; + + /*-------------------------------------------------------------------------+ + | Get the system clock period. + +-------------------------------------------------------------------------*/ + sys_per = determine_sysper(); + + msr = (mfmsr () & ~(MSR_EE)); /* disable interrupts */ + + /*-------------------------------------------------------------------------+ + | Calculate the system clock speed from the period. + +-------------------------------------------------------------------------*/ + sys_freq = (ONE_BILLION / sys_per) * 1000; +#endif + + /* Extract configured divisors */ + mfsdr( SDR0_SDSTP0,strp0 ); + mfsdr( SDR0_SDSTP1,strp1 ); + + temp = ((strp0 & PLLSYS0_FWD_DIV_A_MASK) >> 8); + sysInfo->pllFwdDivA = temp ? temp : 16 ; + temp = ((strp0 & PLLSYS0_FWD_DIV_B_MASK) >> 5); + sysInfo->pllFwdDivB = temp ? temp: 8 ; + temp = (strp0 & PLLSYS0_FB_DIV_MASK) >> 12; + sysInfo->pllFbkDiv = temp ? temp : 32; + temp = (strp0 & PLLSYS0_OPB_DIV_MASK); + sysInfo->pllOpbDiv = temp ? temp : 4; + temp = (strp1 & PLLSYS1_PERCLK_DIV_MASK) >> 24; + sysInfo->pllExtBusDiv = temp ? temp : 4; + prbdv0 = (strp0 >> 2) & 0x7; + + /* Calculate 'M' based on feedback source */ + temp = (strp0 & PLLSYS0_SEL_MASK) >> 27; + temp1 = (strp1 & PLLSYS1_LF_DIV_MASK) >> 26; + lfdiv = temp1 ? temp1 : 64; + if (temp == 0) { /* PLL output */ + /* Figure which pll to use */ + temp = (strp0 & PLLSYS0_SRC_MASK) >> 30; + if (!temp) + m = sysInfo->pllFbkDiv * lfdiv * sysInfo->pllFwdDivA; + else + m = sysInfo->pllFbkDiv * lfdiv * sysInfo->pllFwdDivB; + } + else if (temp == 1) /* CPU output */ + m = sysInfo->pllFbkDiv * sysInfo->pllFwdDivA; + else /* PerClk */ + m = sysInfo->pllExtBusDiv * sysInfo->pllOpbDiv * sysInfo->pllFwdDivB; + + /* Now calculate the individual clocks */ +#if defined(CONFIG_YUCCA) + sysInfo->freqVCOMhz = (m * sys_freq) ; +#else + sysInfo->freqVCOMhz = (m * CONFIG_SYS_CLK_FREQ) + (m >> 1); +#endif + sysInfo->freqProcessor = sysInfo->freqVCOMhz/sysInfo->pllFwdDivA; + sysInfo->freqPLB = sysInfo->freqVCOMhz/sysInfo->pllFwdDivB/prbdv0; + sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv; + sysInfo->freqEBC = sysInfo->freqOPB/sysInfo->pllExtBusDiv; + +#if defined(CONFIG_YUCCA) + /* Determine PCI Clock Period */ + pci_clock_per = determine_pci_clock_per(); + sysInfo->freqPCI = (ONE_BILLION/pci_clock_per) * 1000; + mfsdr(SDR0_DDR0, sdr_ddrpll); + sysInfo->freqDDR = ((sysInfo->freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll)); +#endif + + sysInfo->freqUART = sysInfo->freqPLB; +} + +#endif +#endif /* CONFIG_XILINX_440 */ + +#if defined(CONFIG_YUCCA) +unsigned long determine_sysper(void) +{ + unsigned int fpga_clocking_reg; + unsigned int master_clock_selection; + unsigned long master_clock_per = 0; + unsigned long fb_div_selection; + unsigned int vco_div_reg_value; + unsigned long vco_div_selection; + unsigned long sys_per = 0; + int extClkVal; + + /*-------------------------------------------------------------------------+ + | Read FPGA reg 0 and reg 1 to get FPGA reg information + +-------------------------------------------------------------------------*/ + fpga_clocking_reg = in16(FPGA_REG16); + + + /* Determine Master Clock Source Selection */ + master_clock_selection = fpga_clocking_reg & FPGA_REG16_MASTER_CLK_MASK; + + switch(master_clock_selection) { + case FPGA_REG16_MASTER_CLK_66_66: + master_clock_per = PERIOD_66_66MHZ; + break; + case FPGA_REG16_MASTER_CLK_50: + master_clock_per = PERIOD_50_00MHZ; + break; + case FPGA_REG16_MASTER_CLK_33_33: + master_clock_per = PERIOD_33_33MHZ; + break; + case FPGA_REG16_MASTER_CLK_25: + master_clock_per = PERIOD_25_00MHZ; + break; + case FPGA_REG16_MASTER_CLK_EXT: + if ((extClkVal==EXTCLK_33_33) + && (extClkVal==EXTCLK_50) + && (extClkVal==EXTCLK_66_66) + && (extClkVal==EXTCLK_83)) { + /* calculate master clock period from external clock value */ + master_clock_per=(ONE_BILLION/extClkVal) * 1000; + } else { + /* Unsupported */ + DEBUGF ("%s[%d] *** master clock selection failed ***\n", __FUNCTION__,__LINE__); + hang(); + } + break; + default: + /* Unsupported */ + DEBUGF ("%s[%d] *** master clock selection failed ***\n", __FUNCTION__,__LINE__); + hang(); + break; + } + + /* Determine FB divisors values */ + if ((fpga_clocking_reg & FPGA_REG16_FB1_DIV_MASK) == FPGA_REG16_FB1_DIV_LOW) { + if ((fpga_clocking_reg & FPGA_REG16_FB2_DIV_MASK) == FPGA_REG16_FB2_DIV_LOW) + fb_div_selection = FPGA_FB_DIV_6; + else + fb_div_selection = FPGA_FB_DIV_12; + } else { + if ((fpga_clocking_reg & FPGA_REG16_FB2_DIV_MASK) == FPGA_REG16_FB2_DIV_LOW) + fb_div_selection = FPGA_FB_DIV_10; + else + fb_div_selection = FPGA_FB_DIV_20; + } + + /* Determine VCO divisors values */ + vco_div_reg_value = fpga_clocking_reg & FPGA_REG16_VCO_DIV_MASK; + + switch(vco_div_reg_value) { + case FPGA_REG16_VCO_DIV_4: + vco_div_selection = FPGA_VCO_DIV_4; + break; + case FPGA_REG16_VCO_DIV_6: + vco_div_selection = FPGA_VCO_DIV_6; + break; + case FPGA_REG16_VCO_DIV_8: + vco_div_selection = FPGA_VCO_DIV_8; + break; + case FPGA_REG16_VCO_DIV_10: + default: + vco_div_selection = FPGA_VCO_DIV_10; + break; + } + + if (master_clock_selection == FPGA_REG16_MASTER_CLK_EXT) { + switch(master_clock_per) { + case PERIOD_25_00MHZ: + if (fb_div_selection == FPGA_FB_DIV_12) { + if (vco_div_selection == FPGA_VCO_DIV_4) + sys_per = PERIOD_75_00MHZ; + if (vco_div_selection == FPGA_VCO_DIV_6) + sys_per = PERIOD_50_00MHZ; + } + break; + case PERIOD_33_33MHZ: + if (fb_div_selection == FPGA_FB_DIV_6) { + if (vco_div_selection == FPGA_VCO_DIV_4) + sys_per = PERIOD_50_00MHZ; + if (vco_div_selection == FPGA_VCO_DIV_6) + sys_per = PERIOD_33_33MHZ; + } + if (fb_div_selection == FPGA_FB_DIV_10) { + if (vco_div_selection == FPGA_VCO_DIV_4) + sys_per = PERIOD_83_33MHZ; + if (vco_div_selection == FPGA_VCO_DIV_10) + sys_per = PERIOD_33_33MHZ; + } + if (fb_div_selection == FPGA_FB_DIV_12) { + if (vco_div_selection == FPGA_VCO_DIV_4) + sys_per = PERIOD_100_00MHZ; + if (vco_div_selection == FPGA_VCO_DIV_6) + sys_per = PERIOD_66_66MHZ; + if (vco_div_selection == FPGA_VCO_DIV_8) + sys_per = PERIOD_50_00MHZ; + } + break; + case PERIOD_50_00MHZ: + if (fb_div_selection == FPGA_FB_DIV_6) { + if (vco_div_selection == FPGA_VCO_DIV_4) + sys_per = PERIOD_75_00MHZ; + if (vco_div_selection == FPGA_VCO_DIV_6) + sys_per = PERIOD_50_00MHZ; + } + if (fb_div_selection == FPGA_FB_DIV_10) { + if (vco_div_selection == FPGA_VCO_DIV_6) + sys_per = PERIOD_83_33MHZ; + if (vco_div_selection == FPGA_VCO_DIV_10) + sys_per = PERIOD_50_00MHZ; + } + if (fb_div_selection == FPGA_FB_DIV_12) { + if (vco_div_selection == FPGA_VCO_DIV_6) + sys_per = PERIOD_100_00MHZ; + if (vco_div_selection == FPGA_VCO_DIV_8) + sys_per = PERIOD_75_00MHZ; + } + break; + case PERIOD_66_66MHZ: + if (fb_div_selection == FPGA_FB_DIV_6) { + if (vco_div_selection == FPGA_VCO_DIV_4) + sys_per = PERIOD_100_00MHZ; + if (vco_div_selection == FPGA_VCO_DIV_6) + sys_per = PERIOD_66_66MHZ; + if (vco_div_selection == FPGA_VCO_DIV_8) + sys_per = PERIOD_50_00MHZ; + } + if (fb_div_selection == FPGA_FB_DIV_10) { + if (vco_div_selection == FPGA_VCO_DIV_8) + sys_per = PERIOD_83_33MHZ; + if (vco_div_selection == FPGA_VCO_DIV_10) + sys_per = PERIOD_66_66MHZ; + } + if (fb_div_selection == FPGA_FB_DIV_12) { + if (vco_div_selection == FPGA_VCO_DIV_8) + sys_per = PERIOD_100_00MHZ; + } + break; + default: + break; + } + + if (sys_per == 0) { + /* Other combinations are not supported */ + DEBUGF ("%s[%d] *** sys period compute failed ***\n", __FUNCTION__,__LINE__); + hang(); + } + } else { + /* calcul system clock without cheking */ + /* if engineering option clock no check is selected */ + /* sys_per = master_clock_per * vco_div_selection / fb_div_selection */ + sys_per = (master_clock_per/fb_div_selection) * vco_div_selection; + } + + return(sys_per); +} + +/*-------------------------------------------------------------------------+ +| determine_pci_clock_per. ++-------------------------------------------------------------------------*/ +unsigned long determine_pci_clock_per(void) +{ + unsigned long pci_clock_selection, pci_period; + + /*-------------------------------------------------------------------------+ + | Read FPGA reg 6 to get PCI 0 FPGA reg information + +-------------------------------------------------------------------------*/ + pci_clock_selection = in16(FPGA_REG16); /* was reg6 averifier */ + + + pci_clock_selection = pci_clock_selection & FPGA_REG16_PCI0_CLK_MASK; + + switch (pci_clock_selection) { + case FPGA_REG16_PCI0_CLK_133_33: + pci_period = PERIOD_133_33MHZ; + break; + case FPGA_REG16_PCI0_CLK_100: + pci_period = PERIOD_100_00MHZ; + break; + case FPGA_REG16_PCI0_CLK_66_66: + pci_period = PERIOD_66_66MHZ; + break; + default: + pci_period = PERIOD_33_33MHZ;; + break; + } + + return(pci_period); +} +#endif + +#elif defined(CONFIG_XILINX_405) +extern void get_sys_info (sys_info_t * sysInfo); +extern ulong get_PCI_freq (void); + +#elif defined(CONFIG_AP1000) +void get_sys_info (sys_info_t * sysInfo) +{ + sysInfo->freqProcessor = 240 * 1000 * 1000; + sysInfo->freqPLB = 80 * 1000 * 1000; + sysInfo->freqPCI = 33 * 1000 * 1000; +} + +#elif defined(CONFIG_405) + +void get_sys_info (sys_info_t * sysInfo) +{ + sysInfo->freqVCOMhz=3125000; + sysInfo->freqProcessor=12*1000*1000; + sysInfo->freqPLB=50*1000*1000; + sysInfo->freqPCI=66*1000*1000; +} + +#elif defined(CONFIG_405EP) +void get_sys_info (PPC4xx_SYS_INFO * sysInfo) +{ + unsigned long pllmr0; + unsigned long pllmr1; + unsigned long sysClkPeriodPs = ONE_BILLION / (CONFIG_SYS_CLK_FREQ / 1000); + unsigned long m; + unsigned long pllmr0_ccdv; + + /* + * Read PLL Mode registers + */ + pllmr0 = mfdcr (CPC0_PLLMR0); + pllmr1 = mfdcr (CPC0_PLLMR1); + + /* + * Determine forward divider A + */ + sysInfo->pllFwdDiv = 8 - ((pllmr1 & PLLMR1_FWDVA_MASK) >> 16); + + /* + * Determine forward divider B (should be equal to A) + */ + sysInfo->pllFwdDivB = 8 - ((pllmr1 & PLLMR1_FWDVB_MASK) >> 12); + + /* + * Determine FBK_DIV. + */ + sysInfo->pllFbkDiv = ((pllmr1 & PLLMR1_FBMUL_MASK) >> 20); + if (sysInfo->pllFbkDiv == 0) + sysInfo->pllFbkDiv = 16; + + /* + * Determine PLB_DIV. + */ + sysInfo->pllPlbDiv = ((pllmr0 & PLLMR0_CPU_TO_PLB_MASK) >> 16) + 1; + + /* + * Determine PCI_DIV. + */ + sysInfo->pllPciDiv = (pllmr0 & PLLMR0_PCI_TO_PLB_MASK) + 1; + + /* + * Determine EXTBUS_DIV. + */ + sysInfo->pllExtBusDiv = ((pllmr0 & PLLMR0_EXB_TO_PLB_MASK) >> 8) + 2; + + /* + * Determine OPB_DIV. + */ + sysInfo->pllOpbDiv = ((pllmr0 & PLLMR0_OPB_TO_PLB_MASK) >> 12) + 1; + + /* + * Determine the M factor + */ + m = sysInfo->pllFbkDiv * sysInfo->pllFwdDivB; + + /* + * Determine VCO clock frequency + */ + sysInfo->freqVCOHz = (1000000000000LL * (unsigned long long)m) / + (unsigned long long)sysClkPeriodPs; + + /* + * Determine CPU clock frequency + */ + pllmr0_ccdv = ((pllmr0 & PLLMR0_CPU_DIV_MASK) >> 20) + 1; + if (pllmr1 & PLLMR1_SSCS_MASK) { + /* + * This is true if FWDVA == FWDVB: + * sysInfo->freqProcessor = (CONFIG_SYS_CLK_FREQ * sysInfo->pllFbkDiv) + * / pllmr0_ccdv; + */ + sysInfo->freqProcessor = (CONFIG_SYS_CLK_FREQ * sysInfo->pllFbkDiv * sysInfo->pllFwdDivB) + / sysInfo->pllFwdDiv / pllmr0_ccdv; + } else { + sysInfo->freqProcessor = CONFIG_SYS_CLK_FREQ / pllmr0_ccdv; + } + + /* + * Determine PLB clock frequency + */ + sysInfo->freqPLB = sysInfo->freqProcessor / sysInfo->pllPlbDiv; + + sysInfo->freqEBC = sysInfo->freqPLB / sysInfo->pllExtBusDiv; + + sysInfo->freqOPB = sysInfo->freqPLB / sysInfo->pllOpbDiv; + + sysInfo->freqUART = sysInfo->freqProcessor * pllmr0_ccdv; +} + + +/******************************************** + * get_PCI_freq + * return PCI bus freq in Hz + *********************************************/ +ulong get_PCI_freq (void) +{ + ulong val; + PPC4xx_SYS_INFO sys_info; + + get_sys_info (&sys_info); + val = sys_info.freqPLB / sys_info.pllPciDiv; + return val; +} + +#elif defined(CONFIG_405EZ) +void get_sys_info (PPC4xx_SYS_INFO * sysInfo) +{ + unsigned long cpr_plld; + unsigned long cpr_pllc; + unsigned long cpr_primad; + unsigned long sysClkPeriodPs = ONE_BILLION / (CONFIG_SYS_CLK_FREQ/1000); + unsigned long primad_cpudv; + unsigned long m; + unsigned long plloutb; + + /* + * Read PLL Mode registers + */ + mfcpr(CPR0_PLLD, cpr_plld); + mfcpr(CPR0_PLLC, cpr_pllc); + + /* + * Determine forward divider A + */ + sysInfo->pllFwdDiv = ((cpr_plld & PLLD_FWDVA_MASK) >> 16); + + /* + * Determine forward divider B + */ + sysInfo->pllFwdDivB = ((cpr_plld & PLLD_FWDVB_MASK) >> 8); + if (sysInfo->pllFwdDivB == 0) + sysInfo->pllFwdDivB = 8; + + /* + * Determine FBK_DIV. + */ + sysInfo->pllFbkDiv = ((cpr_plld & PLLD_FBDV_MASK) >> 24); + if (sysInfo->pllFbkDiv == 0) + sysInfo->pllFbkDiv = 256; + + /* + * Read CPR_PRIMAD register + */ + mfcpr(CPC0_PRIMAD, cpr_primad); + + /* + * Determine PLB_DIV. + */ + sysInfo->pllPlbDiv = ((cpr_primad & PRIMAD_PLBDV_MASK) >> 16); + if (sysInfo->pllPlbDiv == 0) + sysInfo->pllPlbDiv = 16; + + /* + * Determine EXTBUS_DIV. + */ + sysInfo->pllExtBusDiv = (cpr_primad & PRIMAD_EBCDV_MASK); + if (sysInfo->pllExtBusDiv == 0) + sysInfo->pllExtBusDiv = 16; + + /* + * Determine OPB_DIV. + */ + sysInfo->pllOpbDiv = ((cpr_primad & PRIMAD_OPBDV_MASK) >> 8); + if (sysInfo->pllOpbDiv == 0) + sysInfo->pllOpbDiv = 16; + + /* + * Determine the M factor + */ + if (cpr_pllc & PLLC_SRC_MASK) + m = sysInfo->pllFbkDiv * sysInfo->pllFwdDivB; + else + m = sysInfo->pllFbkDiv * sysInfo->pllFwdDiv; + + /* + * Determine VCO clock frequency + */ + sysInfo->freqVCOHz = (1000000000000LL * (unsigned long long)m) / + (unsigned long long)sysClkPeriodPs; + + /* + * Determine CPU clock frequency + */ + primad_cpudv = ((cpr_primad & PRIMAD_CPUDV_MASK) >> 24); + if (primad_cpudv == 0) + primad_cpudv = 16; + + sysInfo->freqProcessor = (CONFIG_SYS_CLK_FREQ * m) / + sysInfo->pllFwdDiv / primad_cpudv; + + /* + * Determine PLB clock frequency + */ + sysInfo->freqPLB = (CONFIG_SYS_CLK_FREQ * m) / + sysInfo->pllFwdDiv / sysInfo->pllPlbDiv; + + sysInfo->freqOPB = (CONFIG_SYS_CLK_FREQ * sysInfo->pllFbkDiv) / + sysInfo->pllOpbDiv; + + sysInfo->freqEBC = (CONFIG_SYS_CLK_FREQ * sysInfo->pllFbkDiv) / + sysInfo->pllExtBusDiv; + + plloutb = ((CONFIG_SYS_CLK_FREQ * ((cpr_pllc & PLLC_SRC_MASK) ? + sysInfo->pllFwdDivB : sysInfo->pllFwdDiv) * sysInfo->pllFbkDiv) / + sysInfo->pllFwdDivB); + sysInfo->freqUART = plloutb; +} + +#elif defined(CONFIG_405EX) + +/* + * TODO: We need to get the CPR registers and calculate these values correctly!!!! + * We need the specs!!!! + */ +static unsigned char get_fbdv(unsigned char index) +{ + unsigned char ret = 0; + /* This is table should be 256 bytes. + * Only take first 52 values. + */ + unsigned char fbdv_tb[] = { + 0x00, 0xff, 0x7f, 0xfd, + 0x7a, 0xf5, 0x6a, 0xd5, + 0x2a, 0xd4, 0x29, 0xd3, + 0x26, 0xcc, 0x19, 0xb3, + 0x67, 0xce, 0x1d, 0xbb, + 0x77, 0xee, 0x5d, 0xba, + 0x74, 0xe9, 0x52, 0xa5, + 0x4b, 0x96, 0x2c, 0xd8, + 0x31, 0xe3, 0x46, 0x8d, + 0x1b, 0xb7, 0x6f, 0xde, + 0x3d, 0xfb, 0x76, 0xed, + 0x5a, 0xb5, 0x6b, 0xd6, + 0x2d, 0xdb, 0x36, 0xec, + + }; + + if ((index & 0x7f) == 0) + return 1; + while (ret < sizeof (fbdv_tb)) { + if (fbdv_tb[ret] == index) + break; + ret++; + } + ret++; + + return ret; +} + +#define PLL_FBK_PLL_LOCAL 0 +#define PLL_FBK_CPU 1 +#define PLL_FBK_PERCLK 5 + +void get_sys_info (sys_info_t * sysInfo) +{ + unsigned long sysClkPeriodPs = ONE_BILLION / (CONFIG_SYS_CLK_FREQ / 1000); + unsigned long m = 1; + unsigned int tmp; + unsigned char fwdva[16] = { + 1, 2, 14, 9, 4, 11, 16, 13, + 12, 5, 6, 15, 10, 7, 8, 3, + }; + unsigned char sel, cpudv0, plb2xDiv; + + mfcpr(CPR0_PLLD, tmp); + + /* + * Determine forward divider A + */ + sysInfo->pllFwdDiv = fwdva[((tmp >> 16) & 0x0f)]; /* FWDVA */ + + /* + * Determine FBK_DIV. + */ + sysInfo->pllFbkDiv = get_fbdv(((tmp >> 24) & 0x0ff)); /* FBDV */ + + /* + * Determine PLBDV0 + */ + sysInfo->pllPlbDiv = 2; + + /* + * Determine PERDV0 + */ + mfcpr(CPR0_PERD, tmp); + tmp = (tmp >> 24) & 0x03; + sysInfo->pllExtBusDiv = (tmp == 0) ? 4 : tmp; + + /* + * Determine OPBDV0 + */ + mfcpr(CPR0_OPBD0, tmp); + tmp = (tmp >> 24) & 0x03; + sysInfo->pllOpbDiv = (tmp == 0) ? 4 : tmp; + + /* Determine PLB2XDV0 */ + mfcpr(CPR0_PLBD, tmp); + tmp = (tmp >> 16) & 0x07; + plb2xDiv = (tmp == 0) ? 8 : tmp; + + /* Determine CPUDV0 */ + mfcpr(CPR0_CPUD, tmp); + tmp = (tmp >> 24) & 0x07; + cpudv0 = (tmp == 0) ? 8 : tmp; + + /* Determine SEL(5:7) in CPR0_PLLC */ + mfcpr(CPR0_PLLC, tmp); + sel = (tmp >> 24) & 0x07; + + /* + * Determine the M factor + * PLL local: M = FBDV + * CPU clock: M = FBDV * FWDVA * CPUDV0 + * PerClk : M = FBDV * FWDVA * PLB2XDV0 * PLBDV0(2) * OPBDV0 * PERDV0 + * + */ + switch (sel) { + case PLL_FBK_CPU: + m = sysInfo->pllFwdDiv * cpudv0; + break; + case PLL_FBK_PERCLK: + m = sysInfo->pllFwdDiv * plb2xDiv * 2 + * sysInfo->pllOpbDiv * sysInfo->pllExtBusDiv; + break; + case PLL_FBK_PLL_LOCAL: + break; + default: + printf("%s unknown m\n", __FUNCTION__); + return; + + } + m *= sysInfo->pllFbkDiv; + + /* + * Determine VCO clock frequency + */ + sysInfo->freqVCOHz = (1000000000000LL * (unsigned long long)m) / + (unsigned long long)sysClkPeriodPs; + + /* + * Determine CPU clock frequency + */ + sysInfo->freqProcessor = sysInfo->freqVCOHz / (sysInfo->pllFwdDiv * cpudv0); + + /* + * Determine PLB clock frequency, ddr1x should be the same + */ + sysInfo->freqPLB = sysInfo->freqVCOHz / (sysInfo->pllFwdDiv * plb2xDiv * 2); + sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv; + sysInfo->freqDDR = sysInfo->freqPLB; + sysInfo->freqEBC = sysInfo->freqOPB / sysInfo->pllExtBusDiv; + sysInfo->freqUART = sysInfo->freqPLB; +} + +#endif + +int get_clocks (void) +{ +#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \ + defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \ + defined(CONFIG_405EX) || defined(CONFIG_405) || \ + defined(CONFIG_440) + sys_info_t sys_info; + + get_sys_info (&sys_info); + gd->cpu_clk = sys_info.freqProcessor; + gd->bus_clk = sys_info.freqPLB; + +#endif /* defined(CONFIG_405GP) || defined(CONFIG_405CR) */ + +#ifdef CONFIG_IOP480 + gd->cpu_clk = 66000000; + gd->bus_clk = 66000000; +#endif + return (0); +} + + +/******************************************** + * get_bus_freq + * return PLB bus freq in Hz + *********************************************/ +ulong get_bus_freq (ulong dummy) +{ + ulong val; + +#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \ + defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \ + defined(CONFIG_405EX) || defined(CONFIG_405) || \ + defined(CONFIG_440) + sys_info_t sys_info; + + get_sys_info (&sys_info); + val = sys_info.freqPLB; + +#elif defined(CONFIG_IOP480) + + val = 66; + +#else +# error get_bus_freq() not implemented +#endif + + return val; +} + +#if !defined(CONFIG_IOP480) +ulong get_OPB_freq (void) +{ + PPC4xx_SYS_INFO sys_info; + + get_sys_info (&sys_info); + + return sys_info.freqOPB; +} +#endif diff --git a/arch/ppc/cpu/ppc4xx/start.S b/arch/ppc/cpu/ppc4xx/start.S new file mode 100644 index 0000000..c739deb --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/start.S @@ -0,0 +1,2170 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2000,2001,2002 Wolfgang Denk <wd@denx.de> + * Copyright (C) 2007 Stefan Roese <sr@denx.de>, DENX Software Engineering + * Copyright (c) 2008 Nuovation System Designs, LLC + * Grant Erickson <gerickson@nuovations.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +/*------------------------------------------------------------------------------+ + * This source code is dual-licensed. You may use it under the terms of the + * GNU General Public License version 2, or under the license below. + * + * This source code has been made available to you by IBM on an AS-IS + * basis. Anyone receiving this source is licensed under IBM + * copyrights to use it in any way he or she deems fit, including + * copying it, modifying it, compiling it, and redistributing it either + * with or without modifications. No license under IBM patents or + * patent applications is to be implied by the copyright license. + * + * Any user of this software should understand that IBM cannot provide + * technical support for this software and will not be responsible for + * any consequences resulting from the use of this software. + * + * Any person who transfers this source code or any derivative work + * must include the IBM copyright notice, this paragraph, and the + * preceding two paragraphs in the transferred software. + * + * COPYRIGHT I B M CORPORATION 1995 + * LICENSED MATERIAL - PROGRAM PROPERTY OF I B M + *------------------------------------------------------------------------------- + */ + +/* U-Boot - Startup Code for AMCC 4xx PowerPC based Embedded Boards + * + * + * The processor starts at 0xfffffffc and the code is executed + * from flash/rom. + * in memory, but as long we don't jump around before relocating. + * board_init lies at a quite high address and when the cpu has + * jumped there, everything is ok. + * This works because the cpu gives the FLASH (CS0) the whole + * address space at startup, and board_init lies as a echo of + * the flash somewhere up there in the memorymap. + * + * board_init will change CS0 to be positioned at the correct + * address and (s)dram will be positioned at address 0 + */ +#include <config.h> +#include <ppc4xx.h> +#include <timestamp.h> +#include <version.h> + +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> +#include <asm/ppc4xx-isram.h> + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +#ifdef CONFIG_SYS_INIT_DCACHE_CS +# if (CONFIG_SYS_INIT_DCACHE_CS == 0) +# define PBxAP PB1AP +# define PBxCR PB0CR +# if (defined(CONFIG_SYS_EBC_PB0AP) && defined(CONFIG_SYS_EBC_PB0CR)) +# define PBxAP_VAL CONFIG_SYS_EBC_PB0AP +# define PBxCR_VAL CONFIG_SYS_EBC_PB0CR +# endif +# endif +# if (CONFIG_SYS_INIT_DCACHE_CS == 1) +# define PBxAP PB1AP +# define PBxCR PB1CR +# if (defined(CONFIG_SYS_EBC_PB1AP) && defined(CONFIG_SYS_EBC_PB1CR)) +# define PBxAP_VAL CONFIG_SYS_EBC_PB1AP +# define PBxCR_VAL CONFIG_SYS_EBC_PB1CR +# endif +# endif +# if (CONFIG_SYS_INIT_DCACHE_CS == 2) +# define PBxAP PB2AP +# define PBxCR PB2CR +# if (defined(CONFIG_SYS_EBC_PB2AP) && defined(CONFIG_SYS_EBC_PB2CR)) +# define PBxAP_VAL CONFIG_SYS_EBC_PB2AP +# define PBxCR_VAL CONFIG_SYS_EBC_PB2CR +# endif +# endif +# if (CONFIG_SYS_INIT_DCACHE_CS == 3) +# define PBxAP PB3AP +# define PBxCR PB3CR +# if (defined(CONFIG_SYS_EBC_PB3AP) && defined(CONFIG_SYS_EBC_PB3CR)) +# define PBxAP_VAL CONFIG_SYS_EBC_PB3AP +# define PBxCR_VAL CONFIG_SYS_EBC_PB3CR +# endif +# endif +# if (CONFIG_SYS_INIT_DCACHE_CS == 4) +# define PBxAP PB4AP +# define PBxCR PB4CR +# if (defined(CONFIG_SYS_EBC_PB4AP) && defined(CONFIG_SYS_EBC_PB4CR)) +# define PBxAP_VAL CONFIG_SYS_EBC_PB4AP +# define PBxCR_VAL CONFIG_SYS_EBC_PB4CR +# endif +# endif +# if (CONFIG_SYS_INIT_DCACHE_CS == 5) +# define PBxAP PB5AP +# define PBxCR PB5CR +# if (defined(CONFIG_SYS_EBC_PB5AP) && defined(CONFIG_SYS_EBC_PB5CR)) +# define PBxAP_VAL CONFIG_SYS_EBC_PB5AP +# define PBxCR_VAL CONFIG_SYS_EBC_PB5CR +# endif +# endif +# if (CONFIG_SYS_INIT_DCACHE_CS == 6) +# define PBxAP PB6AP +# define PBxCR PB6CR +# if (defined(CONFIG_SYS_EBC_PB6AP) && defined(CONFIG_SYS_EBC_PB6CR)) +# define PBxAP_VAL CONFIG_SYS_EBC_PB6AP +# define PBxCR_VAL CONFIG_SYS_EBC_PB6CR +# endif +# endif +# if (CONFIG_SYS_INIT_DCACHE_CS == 7) +# define PBxAP PB7AP +# define PBxCR PB7CR +# if (defined(CONFIG_SYS_EBC_PB7AP) && defined(CONFIG_SYS_EBC_PB7CR)) +# define PBxAP_VAL CONFIG_SYS_EBC_PB7AP +# define PBxCR_VAL CONFIG_SYS_EBC_PB7CR +# endif +# endif +# ifndef PBxAP_VAL +# define PBxAP_VAL 0 +# endif +# ifndef PBxCR_VAL +# define PBxCR_VAL 0 +# endif +/* + * Memory Bank x (nothingness) initialization CONFIG_SYS_INIT_RAM_ADDR + 64 MiB + * used as temporary stack pointer for the primordial stack + */ +# ifndef CONFIG_SYS_INIT_DCACHE_PBxAR +# define CONFIG_SYS_INIT_DCACHE_PBxAR (EBC_BXAP_BME_DISABLED | \ + EBC_BXAP_TWT_ENCODE(7) | \ + EBC_BXAP_BCE_DISABLE | \ + EBC_BXAP_BCT_2TRANS | \ + EBC_BXAP_CSN_ENCODE(0) | \ + EBC_BXAP_OEN_ENCODE(0) | \ + EBC_BXAP_WBN_ENCODE(0) | \ + EBC_BXAP_WBF_ENCODE(0) | \ + EBC_BXAP_TH_ENCODE(2) | \ + EBC_BXAP_RE_DISABLED | \ + EBC_BXAP_SOR_NONDELAYED | \ + EBC_BXAP_BEM_WRITEONLY | \ + EBC_BXAP_PEN_DISABLED) +# endif /* CONFIG_SYS_INIT_DCACHE_PBxAR */ +# ifndef CONFIG_SYS_INIT_DCACHE_PBxCR +# define CONFIG_SYS_INIT_DCACHE_PBxCR (EBC_BXCR_BAS_ENCODE(CONFIG_SYS_INIT_RAM_ADDR) | \ + EBC_BXCR_BS_64MB | \ + EBC_BXCR_BU_RW | \ + EBC_BXCR_BW_16BIT) +# endif /* CONFIG_SYS_INIT_DCACHE_PBxCR */ +# ifndef CONFIG_SYS_INIT_RAM_PATTERN +# define CONFIG_SYS_INIT_RAM_PATTERN 0xDEADDEAD +# endif +#endif /* CONFIG_SYS_INIT_DCACHE_CS */ + +#if (defined(CONFIG_SYS_INIT_RAM_DCACHE) && (CONFIG_SYS_INIT_RAM_END > (4 << 10))) +#error Only 4k of init-ram is supported - please adjust CONFIG_SYS_INIT_RAM_END! +#endif + +/* + * Unless otherwise overriden, enable two 128MB cachable instruction regions + * at CONFIG_SYS_SDRAM_BASE and another 128MB cacheable instruction region covering + * NOR flash at CONFIG_SYS_FLASH_BASE. Disable all cacheable data regions. + */ +#if !defined(CONFIG_SYS_FLASH_BASE) +/* If not already defined, set it to the "last" 128MByte region */ +# define CONFIG_SYS_FLASH_BASE 0xf8000000 +#endif +#if !defined(CONFIG_SYS_ICACHE_SACR_VALUE) +# define CONFIG_SYS_ICACHE_SACR_VALUE \ + (PPC_128MB_SACR_VALUE(CONFIG_SYS_SDRAM_BASE + ( 0 << 20)) | \ + PPC_128MB_SACR_VALUE(CONFIG_SYS_SDRAM_BASE + (128 << 20)) | \ + PPC_128MB_SACR_VALUE(CONFIG_SYS_FLASH_BASE)) +#endif /* !defined(CONFIG_SYS_ICACHE_SACR_VALUE) */ + +#if !defined(CONFIG_SYS_DCACHE_SACR_VALUE) +# define CONFIG_SYS_DCACHE_SACR_VALUE \ + (0x00000000) +#endif /* !defined(CONFIG_SYS_DCACHE_SACR_VALUE) */ + +#define function_prolog(func_name) .text; \ + .align 2; \ + .globl func_name; \ + func_name: +#define function_epilog(func_name) .type func_name,@function; \ + .size func_name,.-func_name + +/* We don't want the MMU yet. +*/ +#undef MSR_KERNEL +#define MSR_KERNEL ( MSR_ME ) /* Machine Check */ + + + .extern ext_bus_cntlr_init +#ifdef CONFIG_NAND_U_BOOT + .extern reconfig_tlb0 +#endif + +/* + * Set up GOT: Global Offset Table + * + * Use r12 to access the GOT + */ +#if !defined(CONFIG_NAND_SPL) + START_GOT + GOT_ENTRY(_GOT2_TABLE_) + GOT_ENTRY(_FIXUP_TABLE_) + + GOT_ENTRY(_start) + GOT_ENTRY(_start_of_vectors) + GOT_ENTRY(_end_of_vectors) + GOT_ENTRY(transfer_to_handler) + + GOT_ENTRY(__init_end) + GOT_ENTRY(_end) + GOT_ENTRY(__bss_start) + END_GOT +#endif /* CONFIG_NAND_SPL */ + +#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) + /* + * NAND U-Boot image is started from offset 0 + */ + .text +#if defined(CONFIG_440) + bl reconfig_tlb0 +#endif + GET_GOT + bl cpu_init_f /* run low-level CPU init code (from Flash) */ + bl board_init_f +#endif + +#if defined(CONFIG_SYS_RAMBOOT) + /* + * 4xx RAM-booting U-Boot image is started from offset 0 + */ + .text + bl _start_440 +#endif + +/* + * 440 Startup -- on reset only the top 4k of the effective + * address space is mapped in by an entry in the instruction + * and data shadow TLB. The .bootpg section is located in the + * top 4k & does only what's necessary to map in the the rest + * of the boot rom. Once the boot rom is mapped in we can + * proceed with normal startup. + * + * NOTE: CS0 only covers the top 2MB of the effective address + * space after reset. + */ + +#if defined(CONFIG_440) +#if !defined(CONFIG_NAND_SPL) + .section .bootpg,"ax" +#endif + .globl _start_440 + +/**************************************************************************/ +_start_440: + /*--------------------------------------------------------------------+ + | 440EPX BUP Change - Hardware team request + +--------------------------------------------------------------------*/ +#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) + sync + nop + nop +#endif + /*----------------------------------------------------------------+ + | Core bug fix. Clear the esr + +-----------------------------------------------------------------*/ + li r0,0 + mtspr SPRN_ESR,r0 + /*----------------------------------------------------------------*/ + /* Clear and set up some registers. */ + /*----------------------------------------------------------------*/ + iccci r0,r0 /* NOTE: operands not used for 440 */ + dccci r0,r0 /* NOTE: operands not used for 440 */ + sync + li r0,0 + mtspr SPRN_SRR0,r0 + mtspr SPRN_SRR1,r0 + mtspr SPRN_CSRR0,r0 + mtspr SPRN_CSRR1,r0 + /* NOTE: 440GX adds machine check status regs */ +#if defined(CONFIG_440) && !defined(CONFIG_440GP) + mtspr SPRN_MCSRR0,r0 + mtspr SPRN_MCSRR1,r0 + mfspr r1,SPRN_MCSR + mtspr SPRN_MCSR,r1 +#endif + + /*----------------------------------------------------------------*/ + /* CCR0 init */ + /*----------------------------------------------------------------*/ + /* Disable store gathering & broadcast, guarantee inst/data + * cache block touch, force load/store alignment + * (see errata 1.12: 440_33) + */ + lis r1,0x0030 /* store gathering & broadcast disable */ + ori r1,r1,0x6000 /* cache touch */ + mtspr SPRN_CCR0,r1 + + /*----------------------------------------------------------------*/ + /* Initialize debug */ + /*----------------------------------------------------------------*/ + mfspr r1,SPRN_DBCR0 + andis. r1, r1, 0x8000 /* test DBCR0[EDM] bit */ + bne skip_debug_init /* if set, don't clear debug register */ + mtspr SPRN_DBCR0,r0 + mtspr SPRN_DBCR1,r0 + mtspr SPRN_DBCR2,r0 + mtspr SPRN_IAC1,r0 + mtspr SPRN_IAC2,r0 + mtspr SPRN_IAC3,r0 + mtspr SPRN_DAC1,r0 + mtspr SPRN_DAC2,r0 + mtspr SPRN_DVC1,r0 + mtspr SPRN_DVC2,r0 + + mfspr r1,SPRN_DBSR + mtspr SPRN_DBSR,r1 /* Clear all valid bits */ +skip_debug_init: + +#if defined (CONFIG_440SPE) + /*----------------------------------------------------------------+ + | Initialize Core Configuration Reg1. + | a. ICDPEI: Record even parity. Normal operation. + | b. ICTPEI: Record even parity. Normal operation. + | c. DCTPEI: Record even parity. Normal operation. + | d. DCDPEI: Record even parity. Normal operation. + | e. DCUPEI: Record even parity. Normal operation. + | f. DCMPEI: Record even parity. Normal operation. + | g. FCOM: Normal operation + | h. MMUPEI: Record even parity. Normal operation. + | i. FFF: Flush only as much data as necessary. + | j. TCS: Timebase increments from CPU clock. + +-----------------------------------------------------------------*/ + li r0,0 + mtspr SPRN_CCR1, r0 + + /*----------------------------------------------------------------+ + | Reset the timebase. + | The previous write to CCR1 sets the timebase source. + +-----------------------------------------------------------------*/ + mtspr SPRN_TBWL, r0 + mtspr SPRN_TBWU, r0 +#endif + + /*----------------------------------------------------------------*/ + /* Setup interrupt vectors */ + /*----------------------------------------------------------------*/ + mtspr SPRN_IVPR,r0 /* Vectors start at 0x0000_0000 */ + li r1,0x0100 + mtspr SPRN_IVOR0,r1 /* Critical input */ + li r1,0x0200 + mtspr SPRN_IVOR1,r1 /* Machine check */ + li r1,0x0300 + mtspr SPRN_IVOR2,r1 /* Data storage */ + li r1,0x0400 + mtspr SPRN_IVOR3,r1 /* Instruction storage */ + li r1,0x0500 + mtspr SPRN_IVOR4,r1 /* External interrupt */ + li r1,0x0600 + mtspr SPRN_IVOR5,r1 /* Alignment */ + li r1,0x0700 + mtspr SPRN_IVOR6,r1 /* Program check */ + li r1,0x0800 + mtspr SPRN_IVOR7,r1 /* Floating point unavailable */ + li r1,0x0c00 + mtspr SPRN_IVOR8,r1 /* System call */ + li r1,0x0a00 + mtspr SPRN_IVOR9,r1 /* Auxiliary Processor unavailable */ + li r1,0x0900 + mtspr SPRN_IVOR10,r1 /* Decrementer */ + li r1,0x1300 + mtspr SPRN_IVOR13,r1 /* Data TLB error */ + li r1,0x1400 + mtspr SPRN_IVOR14,r1 /* Instr TLB error */ + li r1,0x2000 + mtspr SPRN_IVOR15,r1 /* Debug */ + + /*----------------------------------------------------------------*/ + /* Configure cache regions */ + /*----------------------------------------------------------------*/ + mtspr SPRN_INV0,r0 + mtspr SPRN_INV1,r0 + mtspr SPRN_INV2,r0 + mtspr SPRN_INV3,r0 + mtspr SPRN_DNV0,r0 + mtspr SPRN_DNV1,r0 + mtspr SPRN_DNV2,r0 + mtspr SPRN_DNV3,r0 + mtspr SPRN_ITV0,r0 + mtspr SPRN_ITV1,r0 + mtspr SPRN_ITV2,r0 + mtspr SPRN_ITV3,r0 + mtspr SPRN_DTV0,r0 + mtspr SPRN_DTV1,r0 + mtspr SPRN_DTV2,r0 + mtspr SPRN_DTV3,r0 + + /*----------------------------------------------------------------*/ + /* Cache victim limits */ + /*----------------------------------------------------------------*/ + /* floors 0, ceiling max to use the entire cache -- nothing locked + */ + lis r1,0x0001 + ori r1,r1,0xf800 + mtspr SPRN_IVLIM,r1 + mtspr SPRN_DVLIM,r1 + + /*----------------------------------------------------------------+ + |Initialize MMUCR[STID] = 0. + +-----------------------------------------------------------------*/ + mfspr r0,SPRN_MMUCR + addis r1,0,0xFFFF + ori r1,r1,0xFF00 + and r0,r0,r1 + mtspr SPRN_MMUCR,r0 + + /*----------------------------------------------------------------*/ + /* Clear all TLB entries -- TID = 0, TS = 0 */ + /*----------------------------------------------------------------*/ + addis r0,0,0x0000 +#ifdef CONFIG_SYS_RAMBOOT + li r4,0 /* Start with TLB #0 */ +#else + li r4,1 /* Start with TLB #1 */ +#endif + li r1,64 /* 64 TLB entries */ + sub r1,r1,r4 /* calculate last TLB # */ + mtctr r1 +rsttlb: +#ifdef CONFIG_SYS_RAMBOOT + tlbre r3,r4,0 /* Read contents from TLB word #0 to get EPN */ + rlwinm. r3,r3,0,0xfffffc00 /* Mask EPN */ + beq tlbnxt /* Skip EPN=0 TLB, this is the SDRAM TLB */ +#endif + tlbwe r0,r4,0 /* Invalidate all entries (V=0)*/ + tlbwe r0,r4,1 + tlbwe r0,r4,2 +tlbnxt: addi r4,r4,1 /* Next TLB */ + bdnz rsttlb + + /*----------------------------------------------------------------*/ + /* TLB entry setup -- step thru tlbtab */ + /*----------------------------------------------------------------*/ +#if defined(CONFIG_440SPE_REVA) + /*----------------------------------------------------------------*/ + /* We have different TLB tables for revA and rev B of 440SPe */ + /*----------------------------------------------------------------*/ + mfspr r1, PVR + lis r0,0x5342 + ori r0,r0,0x1891 + cmpw r7,r1,r0 + bne r7,..revA + bl tlbtabB + b ..goon +..revA: + bl tlbtabA +..goon: +#else + bl tlbtab /* Get tlbtab pointer */ +#endif + mr r5,r0 + li r1,0x003f /* 64 TLB entries max */ + mtctr r1 + li r4,0 /* TLB # */ + + addi r5,r5,-4 +1: +#ifdef CONFIG_SYS_RAMBOOT + tlbre r3,r4,0 /* Read contents from TLB word #0 */ + rlwinm. r3,r3,0,0x00000200 /* Mask V (valid) bit */ + bne tlbnx2 /* Skip V=1 TLB, this is the SDRAM TLB */ +#endif + lwzu r0,4(r5) + cmpwi r0,0 + beq 2f /* 0 marks end */ + lwzu r1,4(r5) + lwzu r2,4(r5) + tlbwe r0,r4,0 /* TLB Word 0 */ + tlbwe r1,r4,1 /* TLB Word 1 */ + tlbwe r2,r4,2 /* TLB Word 2 */ +tlbnx2: addi r4,r4,1 /* Next TLB */ + bdnz 1b + + /*----------------------------------------------------------------*/ + /* Continue from 'normal' start */ + /*----------------------------------------------------------------*/ +2: + bl 3f + b _start + +3: li r0,0 + mtspr SPRN_SRR1,r0 /* Keep things disabled for now */ + mflr r1 + mtspr SPRN_SRR0,r1 + rfi +#endif /* CONFIG_440 */ + +/* + * r3 - 1st arg to board_init(): IMMP pointer + * r4 - 2nd arg to board_init(): boot flag + */ +#ifndef CONFIG_NAND_SPL + .text + .long 0x27051956 /* U-Boot Magic Number */ + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" + .ascii CONFIG_IDENT_STRING, "\0" + + . = EXC_OFF_SYS_RESET + .globl _start_of_vectors +_start_of_vectors: + +/* Critical input. */ + CRIT_EXCEPTION(0x100, CritcalInput, UnknownException) + +#ifdef CONFIG_440 +/* Machine check */ + MCK_EXCEPTION(0x200, MachineCheck, MachineCheckException) +#else + CRIT_EXCEPTION(0x200, MachineCheck, MachineCheckException) +#endif /* CONFIG_440 */ + +/* Data Storage exception. */ + STD_EXCEPTION(0x300, DataStorage, UnknownException) + +/* Instruction Storage exception. */ + STD_EXCEPTION(0x400, InstStorage, UnknownException) + +/* External Interrupt exception. */ + STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) + +/* Alignment exception. */ + . = 0x600 +Alignment: + EXCEPTION_PROLOG(SRR0, SRR1) + mfspr r4,DAR + stw r4,_DAR(r21) + mfspr r5,DSISR + stw r5,_DSISR(r21) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) + +/* Program check exception */ + . = 0x700 +ProgramCheck: + EXCEPTION_PROLOG(SRR0, SRR1) + addi r3,r1,STACK_FRAME_OVERHEAD + EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, + MSR_KERNEL, COPY_EE) + +#ifdef CONFIG_440 + STD_EXCEPTION(0x800, FPUnavailable, UnknownException) + STD_EXCEPTION(0x900, Decrementer, DecrementerPITException) + STD_EXCEPTION(0xa00, APU, UnknownException) +#endif + STD_EXCEPTION(0xc00, SystemCall, UnknownException) + +#ifdef CONFIG_440 + STD_EXCEPTION(0x1300, DataTLBError, UnknownException) + STD_EXCEPTION(0x1400, InstructionTLBError, UnknownException) +#else + STD_EXCEPTION(0x1000, PIT, DecrementerPITException) + STD_EXCEPTION(0x1100, InstructionTLBMiss, UnknownException) + STD_EXCEPTION(0x1200, DataTLBMiss, UnknownException) +#endif + CRIT_EXCEPTION(0x2000, DebugBreakpoint, DebugException ) + + .globl _end_of_vectors +_end_of_vectors: + . = _START_OFFSET +#endif + .globl _start +_start: + +/*****************************************************************************/ +#if defined(CONFIG_440) + + /*----------------------------------------------------------------*/ + /* Clear and set up some registers. */ + /*----------------------------------------------------------------*/ + li r0,0x0000 + lis r1,0xffff + mtspr SPRN_DEC,r0 /* prevent dec exceptions */ + mtspr SPRN_TBWL,r0 /* prevent fit & wdt exceptions */ + mtspr SPRN_TBWU,r0 + mtspr SPRN_TSR,r1 /* clear all timer exception status */ + mtspr SPRN_TCR,r0 /* disable all */ + mtspr SPRN_ESR,r0 /* clear exception syndrome register */ + mtxer r0 /* clear integer exception register */ + + /*----------------------------------------------------------------*/ + /* Debug setup -- some (not very good) ice's need an event*/ + /* to establish control :-( Define CONFIG_SYS_INIT_DBCR to the dbsr */ + /* value you need in this case 0x8cff 0000 should do the trick */ + /*----------------------------------------------------------------*/ +#if defined(CONFIG_SYS_INIT_DBCR) + lis r1,0xffff + ori r1,r1,0xffff + mtspr SPRN_DBSR,r1 /* Clear all status bits */ + lis r0,CONFIG_SYS_INIT_DBCR@h + ori r0,r0,CONFIG_SYS_INIT_DBCR@l + mtspr SPRN_DBCR0,r0 + isync +#endif + + /*----------------------------------------------------------------*/ + /* Setup the internal SRAM */ + /*----------------------------------------------------------------*/ + li r0,0 + +#ifdef CONFIG_SYS_INIT_RAM_DCACHE + /* Clear Dcache to use as RAM */ + addis r3,r0,CONFIG_SYS_INIT_RAM_ADDR@h + ori r3,r3,CONFIG_SYS_INIT_RAM_ADDR@l + addis r4,r0,CONFIG_SYS_INIT_RAM_END@h + ori r4,r4,CONFIG_SYS_INIT_RAM_END@l + rlwinm. r5,r4,0,27,31 + rlwinm r5,r4,27,5,31 + beq ..d_ran + addi r5,r5,0x0001 +..d_ran: + mtctr r5 +..d_ag: + dcbz r0,r3 + addi r3,r3,32 + bdnz ..d_ag + + /* + * Lock the init-ram/stack in d-cache, so that other regions + * may use d-cache as well + * Note, that this current implementation locks exactly 4k + * of d-cache, so please make sure that you don't define a + * bigger init-ram area. Take a look at the lwmon5 440EPx + * implementation as a reference. + */ + msync + isync + /* 8. set TFLOOR/NFLOOR to 8 (-> 8*16*32 bytes locked -> 4k) */ + lis r1,0x0201 + ori r1,r1,0xf808 + mtspr SPRN_DVLIM,r1 + lis r1,0x0808 + ori r1,r1,0x0808 + mtspr SPRN_DNV0,r1 + mtspr SPRN_DNV1,r1 + mtspr SPRN_DNV2,r1 + mtspr SPRN_DNV3,r1 + mtspr SPRN_DTV0,r1 + mtspr SPRN_DTV1,r1 + mtspr SPRN_DTV2,r1 + mtspr SPRN_DTV3,r1 + msync + isync +#endif /* CONFIG_SYS_INIT_RAM_DCACHE */ + + /* 440EP & 440GR are only 440er PPC's without internal SRAM */ +#if !defined(CONFIG_440EP) && !defined(CONFIG_440GR) + /* not all PPC's have internal SRAM usable as L2-cache */ +#if defined(CONFIG_440GX) || \ + defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \ + defined(CONFIG_460SX) + mtdcr L2_CACHE_CFG,r0 /* Ensure L2 Cache is off */ +#elif defined(CONFIG_460EX) || defined(CONFIG_460GT) + lis r1, 0x0000 + ori r1,r1,0x0008 /* Set L2_CACHE_CFG[RDBW]=1 */ + mtdcr L2_CACHE_CFG,r1 +#endif + + lis r2,0x7fff + ori r2,r2,0xffff + mfdcr r1,ISRAM0_DPC + and r1,r1,r2 /* Disable parity check */ + mtdcr ISRAM0_DPC,r1 + mfdcr r1,ISRAM0_PMEG + and r1,r1,r2 /* Disable pwr mgmt */ + mtdcr ISRAM0_PMEG,r1 + + lis r1,0x8000 /* BAS = 8000_0000 */ +#if defined(CONFIG_440GX) || defined(CONFIG_440SP) + ori r1,r1,0x0980 /* first 64k */ + mtdcr ISRAM0_SB0CR,r1 + lis r1,0x8001 + ori r1,r1,0x0980 /* second 64k */ + mtdcr ISRAM0_SB1CR,r1 + lis r1, 0x8002 + ori r1,r1, 0x0980 /* third 64k */ + mtdcr ISRAM0_SB2CR,r1 + lis r1, 0x8003 + ori r1,r1, 0x0980 /* fourth 64k */ + mtdcr ISRAM0_SB3CR,r1 +#elif defined(CONFIG_440SPE) || defined(CONFIG_460EX) || defined(CONFIG_460GT) + lis r1,0x0000 /* BAS = X_0000_0000 */ + ori r1,r1,0x0984 /* first 64k */ + mtdcr ISRAM0_SB0CR,r1 + lis r1,0x0001 + ori r1,r1,0x0984 /* second 64k */ + mtdcr ISRAM0_SB1CR,r1 + lis r1, 0x0002 + ori r1,r1, 0x0984 /* third 64k */ + mtdcr ISRAM0_SB2CR,r1 + lis r1, 0x0003 + ori r1,r1, 0x0984 /* fourth 64k */ + mtdcr ISRAM0_SB3CR,r1 +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) + lis r2,0x7fff + ori r2,r2,0xffff + mfdcr r1,ISRAM1_DPC + and r1,r1,r2 /* Disable parity check */ + mtdcr ISRAM1_DPC,r1 + mfdcr r1,ISRAM1_PMEG + and r1,r1,r2 /* Disable pwr mgmt */ + mtdcr ISRAM1_PMEG,r1 + + lis r1,0x0004 /* BAS = 4_0004_0000 */ + ori r1,r1,0x0984 /* 64k */ + mtdcr ISRAM1_SB0CR,r1 +#endif +#elif defined(CONFIG_460SX) + lis r1,0x0000 /* BAS = 0000_0000 */ + ori r1,r1,0x0B84 /* first 128k */ + mtdcr ISRAM0_SB0CR,r1 + lis r1,0x0001 + ori r1,r1,0x0B84 /* second 128k */ + mtdcr ISRAM0_SB1CR,r1 + lis r1, 0x0002 + ori r1,r1, 0x0B84 /* third 128k */ + mtdcr ISRAM0_SB2CR,r1 + lis r1, 0x0003 + ori r1,r1, 0x0B84 /* fourth 128k */ + mtdcr ISRAM0_SB3CR,r1 +#elif defined(CONFIG_440GP) + ori r1,r1,0x0380 /* 8k rw */ + mtdcr ISRAM0_SB0CR,r1 + mtdcr ISRAM0_SB1CR,r0 /* Disable bank 1 */ +#endif +#endif /* #if !defined(CONFIG_440EP) && !defined(CONFIG_440GR) */ + + /*----------------------------------------------------------------*/ + /* Setup the stack in internal SRAM */ + /*----------------------------------------------------------------*/ + lis r1,CONFIG_SYS_INIT_RAM_ADDR@h + ori r1,r1,CONFIG_SYS_INIT_SP_OFFSET@l + li r0,0 + stwu r0,-4(r1) + stwu r0,-4(r1) /* Terminate call chain */ + + stwu r1,-8(r1) /* Save back chain and move SP */ + lis r0,RESET_VECTOR@h /* Address of reset vector */ + ori r0,r0, RESET_VECTOR@l + stwu r1,-8(r1) /* Save back chain and move SP */ + stw r0,+12(r1) /* Save return addr (underflow vect) */ + +#ifdef CONFIG_NAND_SPL + bl nand_boot_common /* will not return */ +#else + GET_GOT + + bl cpu_init_f /* run low-level CPU init code (from Flash) */ + bl board_init_f +#endif + +#endif /* CONFIG_440 */ + +/*****************************************************************************/ +#ifdef CONFIG_IOP480 + /*----------------------------------------------------------------------- */ + /* Set up some machine state registers. */ + /*----------------------------------------------------------------------- */ + addi r0,r0,0x0000 /* initialize r0 to zero */ + mtspr SPRN_ESR,r0 /* clear Exception Syndrome Reg */ + mttcr r0 /* timer control register */ + mtexier r0 /* disable all interrupts */ + addis r4,r0,0xFFFF /* set r4 to 0xFFFFFFFF (status in the */ + ori r4,r4,0xFFFF /* dbsr is cleared by setting bits to 1) */ + mtdbsr r4 /* clear/reset the dbsr */ + mtexisr r4 /* clear all pending interrupts */ + addis r4,r0,0x8000 + mtexier r4 /* enable critical exceptions */ + addis r4,r0,0x0000 /* assume 403GCX - enable core clk */ + ori r4,r4,0x4020 /* dbling (no harm done on GA and GC */ + mtiocr r4 /* since bit not used) & DRC to latch */ + /* data bus on rising edge of CAS */ + /*----------------------------------------------------------------------- */ + /* Clear XER. */ + /*----------------------------------------------------------------------- */ + mtxer r0 + /*----------------------------------------------------------------------- */ + /* Invalidate i-cache and d-cache TAG arrays. */ + /*----------------------------------------------------------------------- */ + addi r3,0,1024 /* 1/4 of I-cache size, half of D-cache */ + addi r4,0,1024 /* 1/4 of I-cache */ +..cloop: + iccci 0,r3 + iccci r4,r3 + dccci 0,r3 + addic. r3,r3,-16 /* move back one cache line */ + bne ..cloop /* loop back to do rest until r3 = 0 */ + + /* */ + /* initialize IOP480 so it can read 1 MB code area for SRAM spaces */ + /* this requires enabling MA[17..0], by default only MA[12..0] are enabled. */ + /* */ + + /* first copy IOP480 register base address into r3 */ + addis r3,0,0x5000 /* IOP480 register base address hi */ +/* ori r3,r3,0x0000 / IOP480 register base address lo */ + +#ifdef CONFIG_ADCIOP + /* use r4 as the working variable */ + /* turn on CS3 (LOCCTL.7) */ + lwz r4,0x84(r3) /* LOCTL is at offset 0x84 */ + andi. r4,r4,0xff7f /* make bit 7 = 0 -- CS3 mode */ + stw r4,0x84(r3) /* LOCTL is at offset 0x84 */ +#endif + +#ifdef CONFIG_DASA_SIM + /* use r4 as the working variable */ + /* turn on MA17 (LOCCTL.7) */ + lwz r4,0x84(r3) /* LOCTL is at offset 0x84 */ + ori r4,r4,0x80 /* make bit 7 = 1 -- MA17 mode */ + stw r4,0x84(r3) /* LOCTL is at offset 0x84 */ +#endif + + /* turn on MA16..13 (LCS0BRD.12 = 0) */ + lwz r4,0x100(r3) /* LCS0BRD is at offset 0x100 */ + andi. r4,r4,0xefff /* make bit 12 = 0 */ + stw r4,0x100(r3) /* LCS0BRD is at offset 0x100 */ + + /* make sure above stores all comlete before going on */ + sync + + /* last thing, set local init status done bit (DEVINIT.31) */ + lwz r4,0x80(r3) /* DEVINIT is at offset 0x80 */ + oris r4,r4,0x8000 /* make bit 31 = 1 */ + stw r4,0x80(r3) /* DEVINIT is at offset 0x80 */ + + /* clear all pending interrupts and disable all interrupts */ + li r4,-1 /* set p1 to 0xffffffff */ + stw r4,0x1b0(r3) /* clear all pending interrupts */ + stw r4,0x1b8(r3) /* clear all pending interrupts */ + li r4,0 /* set r4 to 0 */ + stw r4,0x1b4(r3) /* disable all interrupts */ + stw r4,0x1bc(r3) /* disable all interrupts */ + + /* make sure above stores all comlete before going on */ + sync + + /* Set-up icache cacheability. */ + lis r1, CONFIG_SYS_ICACHE_SACR_VALUE@h + ori r1, r1, CONFIG_SYS_ICACHE_SACR_VALUE@l + mticcr r1 + isync + + /* Set-up dcache cacheability. */ + lis r1, CONFIG_SYS_DCACHE_SACR_VALUE@h + ori r1, r1, CONFIG_SYS_DCACHE_SACR_VALUE@l + mtdccr r1 + + addis r1,r0,CONFIG_SYS_INIT_RAM_ADDR@h + ori r1,r1,CONFIG_SYS_INIT_SP_OFFSET /* set up the stack to SDRAM */ + li r0, 0 /* Make room for stack frame header and */ + stwu r0, -4(r1) /* clear final stack frame so that */ + stwu r0, -4(r1) /* stack backtraces terminate cleanly */ + + GET_GOT /* initialize GOT access */ + + bl board_init_f /* run first part of init code (from Flash) */ + +#endif /* CONFIG_IOP480 */ + +/*****************************************************************************/ +#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \ + defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \ + defined(CONFIG_405EX) || defined(CONFIG_405) + /*----------------------------------------------------------------------- */ + /* Clear and set up some registers. */ + /*----------------------------------------------------------------------- */ + addi r4,r0,0x0000 +#if !defined(CONFIG_405EX) + mtspr SPRN_SGR,r4 +#else + /* + * On 405EX, completely clearing the SGR leads to PPC hangup + * upon PCIe configuration access. The PCIe memory regions + * need to be guarded! + */ + lis r3,0x0000 + ori r3,r3,0x7FFC + mtspr SPRN_SGR,r3 +#endif + mtspr SPRN_DCWR,r4 + mtesr r4 /* clear Exception Syndrome Reg */ + mttcr r4 /* clear Timer Control Reg */ + mtxer r4 /* clear Fixed-Point Exception Reg */ + mtevpr r4 /* clear Exception Vector Prefix Reg */ + addi r4,r0,(0xFFFF-0x10000) /* set r4 to 0xFFFFFFFF (status in the */ + /* dbsr is cleared by setting bits to 1) */ + mtdbsr r4 /* clear/reset the dbsr */ + + /* Invalidate the i- and d-caches. */ + bl invalidate_icache + bl invalidate_dcache + + /* Set-up icache cacheability. */ + lis r4, CONFIG_SYS_ICACHE_SACR_VALUE@h + ori r4, r4, CONFIG_SYS_ICACHE_SACR_VALUE@l + mticcr r4 + isync + + /* Set-up dcache cacheability. */ + lis r4, CONFIG_SYS_DCACHE_SACR_VALUE@h + ori r4, r4, CONFIG_SYS_DCACHE_SACR_VALUE@l + mtdccr r4 + +#if !(defined(CONFIG_SYS_EBC_PB0AP) && defined(CONFIG_SYS_EBC_PB0CR))\ + && !defined (CONFIG_XILINX_405) + /*----------------------------------------------------------------------- */ + /* Tune the speed and size for flash CS0 */ + /*----------------------------------------------------------------------- */ + bl ext_bus_cntlr_init +#endif + +#if !(defined(CONFIG_SYS_INIT_DCACHE_CS) || defined(CONFIG_SYS_TEMP_STACK_OCM)) + /* + * For boards that don't have OCM and can't use the data cache + * for their primordial stack, setup stack here directly after the + * SDRAM is initialized in ext_bus_cntlr_init. + */ + lis r1, CONFIG_SYS_INIT_RAM_ADDR@h + ori r1,r1,CONFIG_SYS_INIT_SP_OFFSET /* set up the stack in SDRAM */ + + li r0, 0 /* Make room for stack frame header and */ + stwu r0, -4(r1) /* clear final stack frame so that */ + stwu r0, -4(r1) /* stack backtraces terminate cleanly */ + /* + * Set up a dummy frame to store reset vector as return address. + * this causes stack underflow to reset board. + */ + stwu r1, -8(r1) /* Save back chain and move SP */ + lis r0, RESET_VECTOR@h /* Address of reset vector */ + ori r0, r0, RESET_VECTOR@l + stwu r1, -8(r1) /* Save back chain and move SP */ + stw r0, +12(r1) /* Save return addr (underflow vect) */ +#endif /* !(CONFIG_SYS_INIT_DCACHE_CS || !CONFIG_SYS_TEM_STACK_OCM) */ + +#if defined(CONFIG_405EP) + /*----------------------------------------------------------------------- */ + /* DMA Status, clear to come up clean */ + /*----------------------------------------------------------------------- */ + addis r3,r0, 0xFFFF /* Clear all existing DMA status */ + ori r3,r3, 0xFFFF + mtdcr DMASR, r3 + + bl ppc405ep_init /* do ppc405ep specific init */ +#endif /* CONFIG_405EP */ + +#if defined(CONFIG_SYS_OCM_DATA_ADDR) && defined(CONFIG_SYS_OCM_DATA_SIZE) +#if defined(CONFIG_405EZ) + /******************************************************************** + * Setup OCM - On Chip Memory - PPC405EZ uses OCM Controller V2 + *******************************************************************/ + /* + * We can map the OCM on the PLB3, so map it at + * CONFIG_SYS_OCM_DATA_ADDR + 0x8000 + */ + lis r3,CONFIG_SYS_OCM_DATA_ADDR@h /* OCM location */ + ori r3,r3,CONFIG_SYS_OCM_DATA_ADDR@l + ori r3,r3,0x0270 /* 16K for Bank 1, R/W/Enable */ + mtdcr OCM0_PLBCR1,r3 /* Set PLB Access */ + ori r3,r3,0x4000 /* Add 0x4000 for bank 2 */ + mtdcr OCM0_PLBCR2,r3 /* Set PLB Access */ + isync + + lis r3,CONFIG_SYS_OCM_DATA_ADDR@h /* OCM location */ + ori r3,r3,CONFIG_SYS_OCM_DATA_ADDR@l + ori r3,r3,0x0270 /* 16K for Bank 1, R/W/Enable */ + mtdcr OCM0_DSRC1, r3 /* Set Data Side */ + mtdcr OCM0_ISRC1, r3 /* Set Instruction Side */ + ori r3,r3,0x4000 /* Add 0x4000 for bank 2 */ + mtdcr OCM0_DSRC2, r3 /* Set Data Side */ + mtdcr OCM0_ISRC2, r3 /* Set Instruction Side */ + addis r3,0,0x0800 /* OCM Data Parity Disable - 1 Wait State */ + mtdcr OCM0_DISDPC,r3 + + isync +#else /* CONFIG_405EZ */ + /******************************************************************** + * Setup OCM - On Chip Memory + *******************************************************************/ + /* Setup OCM */ + lis r0, 0x7FFF + ori r0, r0, 0xFFFF + mfdcr r3, OCM0_ISCNTL /* get instr-side IRAM config */ + mfdcr r4, OCM0_DSCNTL /* get data-side IRAM config */ + and r3, r3, r0 /* disable data-side IRAM */ + and r4, r4, r0 /* disable data-side IRAM */ + mtdcr OCM0_ISCNTL, r3 /* set instr-side IRAM config */ + mtdcr OCM0_DSCNTL, r4 /* set data-side IRAM config */ + isync + + lis r3,CONFIG_SYS_OCM_DATA_ADDR@h /* OCM location */ + ori r3,r3,CONFIG_SYS_OCM_DATA_ADDR@l + mtdcr OCM0_DSARC, r3 + addis r4, 0, 0xC000 /* OCM data area enabled */ + mtdcr OCM0_DSCNTL, r4 + isync +#endif /* CONFIG_405EZ */ +#endif + + /*----------------------------------------------------------------------- */ + /* Setup temporary stack in DCACHE or OCM if needed for SDRAM SPD. */ + /*----------------------------------------------------------------------- */ +#ifdef CONFIG_SYS_INIT_DCACHE_CS + li r4, PBxAP + mtdcr EBC0_CFGADDR, r4 + lis r4, CONFIG_SYS_INIT_DCACHE_PBxAR@h + ori r4, r4, CONFIG_SYS_INIT_DCACHE_PBxAR@l + mtdcr EBC0_CFGDATA, r4 + + addi r4, 0, PBxCR + mtdcr EBC0_CFGADDR, r4 + lis r4, CONFIG_SYS_INIT_DCACHE_PBxCR@h + ori r4, r4, CONFIG_SYS_INIT_DCACHE_PBxCR@l + mtdcr EBC0_CFGDATA, r4 + + /* + * Enable the data cache for the 128MB storage access control region + * at CONFIG_SYS_INIT_RAM_ADDR. + */ + mfdccr r4 + oris r4, r4, PPC_128MB_SACR_VALUE(CONFIG_SYS_INIT_RAM_ADDR)@h + ori r4, r4, PPC_128MB_SACR_VALUE(CONFIG_SYS_INIT_RAM_ADDR)@l + mtdccr r4 + + /* + * Preallocate data cache lines to be used to avoid a subsequent + * cache miss and an ensuing machine check exception when exceptions + * are enabled. + */ + li r0, 0 + + lis r3, CONFIG_SYS_INIT_RAM_ADDR@h + ori r3, r3, CONFIG_SYS_INIT_RAM_ADDR@l + + lis r4, CONFIG_SYS_INIT_RAM_END@h + ori r4, r4, CONFIG_SYS_INIT_RAM_END@l + + /* + * Convert the size, in bytes, to the number of cache lines/blocks + * to preallocate. + */ + clrlwi. r5, r4, (32 - L1_CACHE_SHIFT) + srwi r5, r4, L1_CACHE_SHIFT + beq ..load_counter + addi r5, r5, 0x0001 +..load_counter: + mtctr r5 + + /* Preallocate the computed number of cache blocks. */ +..alloc_dcache_block: + dcba r0, r3 + addi r3, r3, L1_CACHE_BYTES + bdnz ..alloc_dcache_block + sync + + /* + * Load the initial stack pointer and data area and convert the size, + * in bytes, to the number of words to initialize to a known value. + */ + lis r1, CONFIG_SYS_INIT_RAM_ADDR@h + ori r1, r1, CONFIG_SYS_INIT_SP_OFFSET@l + + lis r4, (CONFIG_SYS_INIT_RAM_END >> 2)@h + ori r4, r4, (CONFIG_SYS_INIT_RAM_END >> 2)@l + mtctr r4 + + lis r2, CONFIG_SYS_INIT_RAM_ADDR@h + ori r2, r2, CONFIG_SYS_INIT_RAM_END@l + + lis r4, CONFIG_SYS_INIT_RAM_PATTERN@h + ori r4, r4, CONFIG_SYS_INIT_RAM_PATTERN@l + +..stackloop: + stwu r4, -4(r2) + bdnz ..stackloop + + /* + * Make room for stack frame header and clear final stack frame so + * that stack backtraces terminate cleanly. + */ + stwu r0, -4(r1) + stwu r0, -4(r1) + + /* + * Set up a dummy frame to store reset vector as return address. + * this causes stack underflow to reset board. + */ + stwu r1, -8(r1) /* Save back chain and move SP */ + addis r0, 0, RESET_VECTOR@h /* Address of reset vector */ + ori r0, r0, RESET_VECTOR@l + stwu r1, -8(r1) /* Save back chain and move SP */ + stw r0, +12(r1) /* Save return addr (underflow vect) */ + +#elif defined(CONFIG_SYS_TEMP_STACK_OCM) && \ + (defined(CONFIG_SYS_OCM_DATA_ADDR) && defined(CONFIG_SYS_OCM_DATA_SIZE)) + /* + * Stack in OCM. + */ + + /* Set up Stack at top of OCM */ + lis r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)@h + ori r1, r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)@l + + /* Set up a zeroized stack frame so that backtrace works right */ + li r0, 0 + stwu r0, -4(r1) + stwu r0, -4(r1) + + /* + * Set up a dummy frame to store reset vector as return address. + * this causes stack underflow to reset board. + */ + stwu r1, -8(r1) /* Save back chain and move SP */ + lis r0, RESET_VECTOR@h /* Address of reset vector */ + ori r0, r0, RESET_VECTOR@l + stwu r1, -8(r1) /* Save back chain and move SP */ + stw r0, +12(r1) /* Save return addr (underflow vect) */ +#endif /* CONFIG_SYS_INIT_DCACHE_CS */ + +#ifdef CONFIG_NAND_SPL + bl nand_boot_common /* will not return */ +#else + GET_GOT /* initialize GOT access */ + + bl cpu_init_f /* run low-level CPU init code (from Flash) */ + + /* NEVER RETURNS! */ + bl board_init_f /* run first part of init code (from Flash) */ +#endif /* CONFIG_NAND_SPL */ + +#endif /* CONFIG_405GP || CONFIG_405CR || CONFIG_405 || CONFIG_405EP */ + /*----------------------------------------------------------------------- */ + + +#ifndef CONFIG_NAND_SPL +/* + * This code finishes saving the registers to the exception frame + * and jumps to the appropriate handler for the exception. + * Register r21 is pointer into trap frame, r1 has new stack pointer. + */ + .globl transfer_to_handler +transfer_to_handler: + stw r22,_NIP(r21) + lis r22,MSR_POW@h + andc r23,r23,r22 + stw r23,_MSR(r21) + SAVE_GPR(7, r21) + SAVE_4GPRS(8, r21) + SAVE_8GPRS(12, r21) + SAVE_8GPRS(24, r21) + mflr r23 + andi. r24,r23,0x3f00 /* get vector offset */ + stw r24,TRAP(r21) + li r22,0 + stw r22,RESULT(r21) + mtspr SPRG2,r22 /* r1 is now kernel sp */ + lwz r24,0(r23) /* virtual address of handler */ + lwz r23,4(r23) /* where to go when done */ + mtspr SRR0,r24 + mtspr SRR1,r20 + mtlr r23 + SYNC + rfi /* jump to handler, enable MMU */ + +int_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SRR0,r2 + mtspr SRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfi + +crit_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SPRN_CSRR0,r2 + mtspr SPRN_CSRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfci + +#ifdef CONFIG_440 +mck_return: + mfmsr r28 /* Disable interrupts */ + li r4,0 + ori r4,r4,MSR_EE + andc r28,r28,r4 + SYNC /* Some chip revs need this... */ + mtmsr r28 + SYNC + lwz r2,_CTR(r1) + lwz r0,_LINK(r1) + mtctr r2 + mtlr r0 + lwz r2,_XER(r1) + lwz r0,_CCR(r1) + mtspr XER,r2 + mtcrf 0xFF,r0 + REST_10GPRS(3, r1) + REST_10GPRS(13, r1) + REST_8GPRS(23, r1) + REST_GPR(31, r1) + lwz r2,_NIP(r1) /* Restore environment */ + lwz r0,_MSR(r1) + mtspr SPRN_MCSRR0,r2 + mtspr SPRN_MCSRR1,r0 + lwz r0,GPR0(r1) + lwz r2,GPR2(r1) + lwz r1,GPR1(r1) + SYNC + rfmci +#endif /* CONFIG_440 */ + + + .globl get_pvr +get_pvr: + mfspr r3, PVR + blr + +/*------------------------------------------------------------------------------- */ +/* Function: out16 */ +/* Description: Output 16 bits */ +/*------------------------------------------------------------------------------- */ + .globl out16 +out16: + sth r4,0x0000(r3) + blr + +/*------------------------------------------------------------------------------- */ +/* Function: out16r */ +/* Description: Byte reverse and output 16 bits */ +/*------------------------------------------------------------------------------- */ + .globl out16r +out16r: + sthbrx r4,r0,r3 + blr + +/*------------------------------------------------------------------------------- */ +/* Function: out32r */ +/* Description: Byte reverse and output 32 bits */ +/*------------------------------------------------------------------------------- */ + .globl out32r +out32r: + stwbrx r4,r0,r3 + blr + +/*------------------------------------------------------------------------------- */ +/* Function: in16 */ +/* Description: Input 16 bits */ +/*------------------------------------------------------------------------------- */ + .globl in16 +in16: + lhz r3,0x0000(r3) + blr + +/*------------------------------------------------------------------------------- */ +/* Function: in16r */ +/* Description: Input 16 bits and byte reverse */ +/*------------------------------------------------------------------------------- */ + .globl in16r +in16r: + lhbrx r3,r0,r3 + blr + +/*------------------------------------------------------------------------------- */ +/* Function: in32r */ +/* Description: Input 32 bits and byte reverse */ +/*------------------------------------------------------------------------------- */ + .globl in32r +in32r: + lwbrx r3,r0,r3 + blr + +/* + * void relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * r3 = Relocated stack pointer + * r4 = Relocated global data pointer + * r5 = Relocated text pointer + */ + .globl relocate_code +relocate_code: +#if defined(CONFIG_4xx_DCACHE) || defined(CONFIG_SYS_INIT_DCACHE_CS) + /* + * We need to flush the initial global data (gd_t) before the dcache + * will be invalidated. + */ + + /* Save registers */ + mr r9, r3 + mr r10, r4 + mr r11, r5 + + /* Flush initial global data range */ + mr r3, r4 + addi r4, r4, CONFIG_SYS_GBL_DATA_SIZE@l + bl flush_dcache_range + +#if defined(CONFIG_SYS_INIT_DCACHE_CS) + /* + * Undo the earlier data cache set-up for the primordial stack and + * data area. First, invalidate the data cache and then disable data + * cacheability for that area. Finally, restore the EBC values, if + * any. + */ + + /* Invalidate the primordial stack and data area in cache */ + lis r3, CONFIG_SYS_INIT_RAM_ADDR@h + ori r3, r3, CONFIG_SYS_INIT_RAM_ADDR@l + + lis r4, CONFIG_SYS_INIT_RAM_END@h + ori r4, r4, CONFIG_SYS_INIT_RAM_END@l + add r4, r4, r3 + + bl invalidate_dcache_range + + /* Disable cacheability for the region */ + mfdccr r3 + lis r4, ~PPC_128MB_SACR_VALUE(CONFIG_SYS_INIT_RAM_ADDR)@h + ori r4, r4, ~PPC_128MB_SACR_VALUE(CONFIG_SYS_INIT_RAM_ADDR)@l + and r3, r3, r4 + mtdccr r3 + + /* Restore the EBC parameters */ + li r3, PBxAP + mtdcr EBC0_CFGADDR, r3 + lis r3, PBxAP_VAL@h + ori r3, r3, PBxAP_VAL@l + mtdcr EBC0_CFGDATA, r3 + + li r3, PBxCR + mtdcr EBC0_CFGADDR, r3 + lis r3, PBxCR_VAL@h + ori r3, r3, PBxCR_VAL@l + mtdcr EBC0_CFGDATA, r3 +#endif /* defined(CONFIG_SYS_INIT_DCACHE_CS) */ + + /* Restore registers */ + mr r3, r9 + mr r4, r10 + mr r5, r11 +#endif /* defined(CONFIG_4xx_DCACHE) || defined(CONFIG_SYS_INIT_DCACHE_CS) */ + +#ifdef CONFIG_SYS_INIT_RAM_DCACHE + /* + * Unlock the previously locked d-cache + */ + msync + isync + /* set TFLOOR/NFLOOR to 0 again */ + lis r6,0x0001 + ori r6,r6,0xf800 + mtspr SPRN_DVLIM,r6 + lis r6,0x0000 + ori r6,r6,0x0000 + mtspr SPRN_DNV0,r6 + mtspr SPRN_DNV1,r6 + mtspr SPRN_DNV2,r6 + mtspr SPRN_DNV3,r6 + mtspr SPRN_DTV0,r6 + mtspr SPRN_DTV1,r6 + mtspr SPRN_DTV2,r6 + mtspr SPRN_DTV3,r6 + msync + isync +#endif /* CONFIG_SYS_INIT_RAM_DCACHE */ + +#if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ + defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ + defined(CONFIG_460SX) + /* + * On some 440er platforms the cache is enabled in the first TLB (Boot-CS) + * to speed up the boot process. Now this cache needs to be disabled. + */ + iccci 0,0 /* Invalidate inst cache */ + dccci 0,0 /* Invalidate data cache, now no longer our stack */ + sync + isync + + /* Clear all potential pending exceptions */ + mfspr r1,SPRN_MCSR + mtspr SPRN_MCSR,r1 +#ifdef CONFIG_SYS_TLB_FOR_BOOT_FLASH + addi r1,r0,CONFIG_SYS_TLB_FOR_BOOT_FLASH /* Use defined TLB */ +#else + addi r1,r0,0x0000 /* Default TLB entry is #0 */ +#endif /* CONFIG_SYS_TLB_FOR_BOOT_FLASH */ + tlbre r0,r1,0x0002 /* Read contents */ + ori r0,r0,0x0c00 /* Or in the inhibit, write through bit */ + tlbwe r0,r1,0x0002 /* Save it out */ + sync + isync +#endif /* defined(CONFIG_440EP) || ... || defined(CONFIG_460GT) */ + mr r1, r3 /* Set new stack pointer */ + mr r9, r4 /* Save copy of Init Data pointer */ + mr r10, r5 /* Save copy of Destination Address */ + + GET_GOT + mr r3, r5 /* Destination Address */ + lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ + ori r4, r4, CONFIG_SYS_MONITOR_BASE@l + lwz r5, GOT(__init_end) + sub r5, r5, r4 + li r6, L1_CACHE_BYTES /* Cache Line Size */ + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address + * + * Offset: + */ + sub r15, r10, r4 + + /* First our own GOT */ + add r12, r12, r15 + /* then the one used by the C code */ + add r30, r30, r15 + + /* + * Now relocate code + */ + + cmplw cr1,r3,r4 + addi r0,r5,3 + srwi. r0,r0,2 + beq cr1,4f /* In place copy is not necessary */ + beq 7f /* Protect against 0 count */ + mtctr r0 + bge cr1,2f + + la r8,-4(r4) + la r7,-4(r3) +1: lwzu r0,4(r8) + stwu r0,4(r7) + bdnz 1b + b 4f + +2: slwi r0,r0,2 + add r8,r4,r0 + add r7,r3,r0 +3: lwzu r0,-4(r8) + stwu r0,-4(r7) + bdnz 3b + +/* + * Now flush the cache: note that we must start from a cache aligned + * address. Otherwise we might miss one cache line. + */ +4: cmpwi r6,0 + add r5,r3,r5 + beq 7f /* Always flush prefetch queue in any case */ + subi r0,r6,1 + andc r3,r3,r0 + mr r4,r3 +5: dcbst 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 5b + sync /* Wait for all dcbst to complete on bus */ + mr r4,r3 +6: icbi 0,r4 + add r4,r4,r6 + cmplw r4,r5 + blt 6b +7: sync /* Wait for all icbi to complete on bus */ + isync + +/* + * We are done. Do not return, instead branch to second part of board + * initialization, now running from RAM. + */ + + addi r0, r10, in_ram - _start + _START_OFFSET + mtlr r0 + blr /* NEVER RETURNS! */ + +in_ram: + + /* + * Relocation Function, r12 point to got2+0x8000 + * + * Adjust got2 pointers, no need to check for 0, this code + * already puts a few entries in the table. + */ + li r0,__got2_entries@sectoff@l + la r3,GOT(_GOT2_TABLE_) + lwz r11,GOT(_GOT2_TABLE_) + mtctr r0 + sub r11,r3,r11 + addi r3,r3,-4 +1: lwzu r0,4(r3) + cmpwi r0,0 + beq- 2f + add r0,r0,r11 + stw r0,0(r3) +2: bdnz 1b + + /* + * Now adjust the fixups and the pointers to the fixups + * in case we need to move ourselves again. + */ + li r0,__fixup_entries@sectoff@l + lwz r3,GOT(_FIXUP_TABLE_) + cmpwi r0,0 + mtctr r0 + addi r3,r3,-4 + beq 4f +3: lwzu r4,4(r3) + lwzux r0,r4,r11 + add r0,r0,r11 + stw r10,0(r3) + stw r0,0(r4) + bdnz 3b +4: +clear_bss: + /* + * Now clear BSS segment + */ + lwz r3,GOT(__bss_start) + lwz r4,GOT(_end) + + cmplw 0, r3, r4 + beq 7f + + li r0, 0 + + andi. r5, r4, 3 + beq 6f + sub r4, r4, r5 + mtctr r5 + mr r5, r4 +5: stb r0, 0(r5) + addi r5, r5, 1 + bdnz 5b +6: + stw r0, 0(r3) + addi r3, r3, 4 + cmplw 0, r3, r4 + bne 6b + +7: + mr r3, r9 /* Init Data pointer */ + mr r4, r10 /* Destination Address */ + bl board_init_r + + /* + * Copy exception vector code to low memory + * + * r3: dest_addr + * r7: source address, r8: end address, r9: target address + */ + .globl trap_init +trap_init: + mflr r4 /* save link register */ + GET_GOT + lwz r7, GOT(_start_of_vectors) + lwz r8, GOT(_end_of_vectors) + + li r9, 0x100 /* reset vector always at 0x100 */ + + cmplw 0, r7, r8 + bgelr /* return if r7>=r8 - just in case */ +1: + lwz r0, 0(r7) + stw r0, 0(r9) + addi r7, r7, 4 + addi r9, r9, 4 + cmplw 0, r7, r8 + bne 1b + + /* + * relocate `hdlr' and `int_return' entries + */ + li r7, .L_MachineCheck - _start + _START_OFFSET + li r8, Alignment - _start + _START_OFFSET +2: + bl trap_reloc + addi r7, r7, 0x100 /* next exception vector */ + cmplw 0, r7, r8 + blt 2b + + li r7, .L_Alignment - _start + _START_OFFSET + bl trap_reloc + + li r7, .L_ProgramCheck - _start + _START_OFFSET + bl trap_reloc + +#ifdef CONFIG_440 + li r7, .L_FPUnavailable - _start + _START_OFFSET + bl trap_reloc + + li r7, .L_Decrementer - _start + _START_OFFSET + bl trap_reloc + + li r7, .L_APU - _start + _START_OFFSET + bl trap_reloc + + li r7, .L_InstructionTLBError - _start + _START_OFFSET + bl trap_reloc + + li r7, .L_DataTLBError - _start + _START_OFFSET + bl trap_reloc +#else /* CONFIG_440 */ + li r7, .L_PIT - _start + _START_OFFSET + bl trap_reloc + + li r7, .L_InstructionTLBMiss - _start + _START_OFFSET + bl trap_reloc + + li r7, .L_DataTLBMiss - _start + _START_OFFSET + bl trap_reloc +#endif /* CONFIG_440 */ + + li r7, .L_DebugBreakpoint - _start + _START_OFFSET + bl trap_reloc + +#if !defined(CONFIG_440) + addi r7,r0,0x1000 /* set ME bit (Machine Exceptions) */ + oris r7,r7,0x0002 /* set CE bit (Critical Exceptions) */ + mtmsr r7 /* change MSR */ +#else + bl __440_msr_set + b __440_msr_continue + +__440_msr_set: + addi r7,r0,0x1000 /* set ME bit (Machine Exceptions) */ + oris r7,r7,0x0002 /* set CE bit (Critical Exceptions) */ + mtspr SPRN_SRR1,r7 + mflr r7 + mtspr SPRN_SRR0,r7 + rfi +__440_msr_continue: +#endif + + mtlr r4 /* restore link register */ + blr + +#if defined(CONFIG_440) +/*----------------------------------------------------------------------------+ +| dcbz_area. ++----------------------------------------------------------------------------*/ + function_prolog(dcbz_area) + rlwinm. r5,r4,0,27,31 + rlwinm r5,r4,27,5,31 + beq ..d_ra2 + addi r5,r5,0x0001 +..d_ra2:mtctr r5 +..d_ag2:dcbz r0,r3 + addi r3,r3,32 + bdnz ..d_ag2 + sync + blr + function_epilog(dcbz_area) +#endif /* CONFIG_440 */ +#endif /* CONFIG_NAND_SPL */ + +/*------------------------------------------------------------------------------- */ +/* Function: in8 */ +/* Description: Input 8 bits */ +/*------------------------------------------------------------------------------- */ + .globl in8 +in8: + lbz r3,0x0000(r3) + blr + +/*------------------------------------------------------------------------------- */ +/* Function: out8 */ +/* Description: Output 8 bits */ +/*------------------------------------------------------------------------------- */ + .globl out8 +out8: + stb r4,0x0000(r3) + blr + +/*------------------------------------------------------------------------------- */ +/* Function: out32 */ +/* Description: Output 32 bits */ +/*------------------------------------------------------------------------------- */ + .globl out32 +out32: + stw r4,0x0000(r3) + blr + +/*------------------------------------------------------------------------------- */ +/* Function: in32 */ +/* Description: Input 32 bits */ +/*------------------------------------------------------------------------------- */ + .globl in32 +in32: + lwz 3,0x0000(3) + blr + +/**************************************************************************/ +/* PPC405EP specific stuff */ +/**************************************************************************/ +#ifdef CONFIG_405EP +ppc405ep_init: + +#ifdef CONFIG_BUBINGA + /* + * Initialize EBC chip selects 1 & 4 and GPIO pins (for alternate + * function) to support FPGA and NVRAM accesses below. + */ + + lis r3,GPIO0_OSRH@h /* config GPIO output select */ + ori r3,r3,GPIO0_OSRH@l + lis r4,CONFIG_SYS_GPIO0_OSRH@h + ori r4,r4,CONFIG_SYS_GPIO0_OSRH@l + stw r4,0(r3) + lis r3,GPIO0_OSRL@h + ori r3,r3,GPIO0_OSRL@l + lis r4,CONFIG_SYS_GPIO0_OSRL@h + ori r4,r4,CONFIG_SYS_GPIO0_OSRL@l + stw r4,0(r3) + + lis r3,GPIO0_ISR1H@h /* config GPIO input select */ + ori r3,r3,GPIO0_ISR1H@l + lis r4,CONFIG_SYS_GPIO0_ISR1H@h + ori r4,r4,CONFIG_SYS_GPIO0_ISR1H@l + stw r4,0(r3) + lis r3,GPIO0_ISR1L@h + ori r3,r3,GPIO0_ISR1L@l + lis r4,CONFIG_SYS_GPIO0_ISR1L@h + ori r4,r4,CONFIG_SYS_GPIO0_ISR1L@l + stw r4,0(r3) + + lis r3,GPIO0_TSRH@h /* config GPIO three-state select */ + ori r3,r3,GPIO0_TSRH@l + lis r4,CONFIG_SYS_GPIO0_TSRH@h + ori r4,r4,CONFIG_SYS_GPIO0_TSRH@l + stw r4,0(r3) + lis r3,GPIO0_TSRL@h + ori r3,r3,GPIO0_TSRL@l + lis r4,CONFIG_SYS_GPIO0_TSRL@h + ori r4,r4,CONFIG_SYS_GPIO0_TSRL@l + stw r4,0(r3) + + lis r3,GPIO0_TCR@h /* config GPIO driver output enables */ + ori r3,r3,GPIO0_TCR@l + lis r4,CONFIG_SYS_GPIO0_TCR@h + ori r4,r4,CONFIG_SYS_GPIO0_TCR@l + stw r4,0(r3) + + li r3,PB1AP /* program EBC bank 1 for RTC access */ + mtdcr EBC0_CFGADDR,r3 + lis r3,CONFIG_SYS_EBC_PB1AP@h + ori r3,r3,CONFIG_SYS_EBC_PB1AP@l + mtdcr EBC0_CFGDATA,r3 + li r3,PB1CR + mtdcr EBC0_CFGADDR,r3 + lis r3,CONFIG_SYS_EBC_PB1CR@h + ori r3,r3,CONFIG_SYS_EBC_PB1CR@l + mtdcr EBC0_CFGDATA,r3 + + li r3,PB1AP /* program EBC bank 1 for RTC access */ + mtdcr EBC0_CFGADDR,r3 + lis r3,CONFIG_SYS_EBC_PB1AP@h + ori r3,r3,CONFIG_SYS_EBC_PB1AP@l + mtdcr EBC0_CFGDATA,r3 + li r3,PB1CR + mtdcr EBC0_CFGADDR,r3 + lis r3,CONFIG_SYS_EBC_PB1CR@h + ori r3,r3,CONFIG_SYS_EBC_PB1CR@l + mtdcr EBC0_CFGDATA,r3 + + li r3,PB4AP /* program EBC bank 4 for FPGA access */ + mtdcr EBC0_CFGADDR,r3 + lis r3,CONFIG_SYS_EBC_PB4AP@h + ori r3,r3,CONFIG_SYS_EBC_PB4AP@l + mtdcr EBC0_CFGDATA,r3 + li r3,PB4CR + mtdcr EBC0_CFGADDR,r3 + lis r3,CONFIG_SYS_EBC_PB4CR@h + ori r3,r3,CONFIG_SYS_EBC_PB4CR@l + mtdcr EBC0_CFGDATA,r3 +#endif + + /* + !----------------------------------------------------------------------- + ! Check to see if chip is in bypass mode. + ! If so, write stored CPC0_PLLMR0 and CPC0_PLLMR1 values and perform a + ! CPU reset Otherwise, skip this step and keep going. + ! Note: Running BIOS in bypass mode is not supported since PLB speed + ! will not be fast enough for the SDRAM (min 66MHz) + !----------------------------------------------------------------------- + */ + mfdcr r5, CPC0_PLLMR1 + rlwinm r4,r5,1,0x1 /* get system clock source (SSCS) */ + cmpi cr0,0,r4,0x1 + + beq pll_done /* if SSCS =b'1' then PLL has */ + /* already been set */ + /* and CPU has been reset */ + /* so skip to next section */ + +#ifdef CONFIG_BUBINGA + /* + !----------------------------------------------------------------------- + ! Read NVRAM to get value to write in PLLMR. + ! If value has not been correctly saved, write default value + ! Default config values (assuming on-board 33MHz SYS_CLK) are above. + ! See CPU_DEFAULT_200 and CPU_DEFAULT_266 above. + ! + ! WARNING: This code assumes the first three words in the nvram_t + ! structure in openbios.h. Changing the beginning of + ! the structure will break this code. + ! + !----------------------------------------------------------------------- + */ + addis r3,0,NVRAM_BASE@h + addi r3,r3,NVRAM_BASE@l + + lwz r4, 0(r3) + addis r5,0,NVRVFY1@h + addi r5,r5,NVRVFY1@l + cmp cr0,0,r4,r5 /* Compare 1st NVRAM Magic number*/ + bne ..no_pllset + addi r3,r3,4 + lwz r4, 0(r3) + addis r5,0,NVRVFY2@h + addi r5,r5,NVRVFY2@l + cmp cr0,0,r4,r5 /* Compare 2 NVRAM Magic number */ + bne ..no_pllset + addi r3,r3,8 /* Skip over conf_size */ + lwz r4, 4(r3) /* Load PLLMR1 value from NVRAM */ + lwz r3, 0(r3) /* Load PLLMR0 value from NVRAM */ + rlwinm r5,r4,1,0x1 /* get system clock source (SSCS) */ + cmpi cr0,0,r5,1 /* See if PLL is locked */ + beq pll_write +..no_pllset: +#endif /* CONFIG_BUBINGA */ + +#ifdef CONFIG_TAIHU + mfdcr r4, CPC0_BOOT + andi. r5, r4, CPC0_BOOT_SEP@l + bne strap_1 /* serial eeprom present */ + addis r5,0,CPLD_REG0_ADDR@h + ori r5,r5,CPLD_REG0_ADDR@l + andi. r5, r5, 0x10 + bne _pci_66mhz +#endif /* CONFIG_TAIHU */ + +#if defined(CONFIG_ZEUS) + mfdcr r4, CPC0_BOOT + andi. r5, r4, CPC0_BOOT_SEP@l + bne strap_1 /* serial eeprom present */ + lis r3,0x0000 + addi r3,r3,0x3030 + lis r4,0x8042 + addi r4,r4,0x223e + b 1f +strap_1: + mfdcr r3, CPC0_PLLMR0 + mfdcr r4, CPC0_PLLMR1 + b 1f +#endif + + addis r3,0,PLLMR0_DEFAULT@h /* PLLMR0 default value */ + ori r3,r3,PLLMR0_DEFAULT@l /* */ + addis r4,0,PLLMR1_DEFAULT@h /* PLLMR1 default value */ + ori r4,r4,PLLMR1_DEFAULT@l /* */ + +#ifdef CONFIG_TAIHU + b 1f +_pci_66mhz: + addis r3,0,PLLMR0_DEFAULT_PCI66@h + ori r3,r3,PLLMR0_DEFAULT_PCI66@l + addis r4,0,PLLMR1_DEFAULT_PCI66@h + ori r4,r4,PLLMR1_DEFAULT_PCI66@l + b 1f +strap_1: + mfdcr r3, CPC0_PLLMR0 + mfdcr r4, CPC0_PLLMR1 +#endif /* CONFIG_TAIHU */ + +1: + b pll_write /* Write the CPC0_PLLMR with new value */ + +pll_done: + /* + !----------------------------------------------------------------------- + ! Clear Soft Reset Register + ! This is needed to enable PCI if not booting from serial EPROM + !----------------------------------------------------------------------- + */ + addi r3, 0, 0x0 + mtdcr CPC0_SRR, r3 + + addis r3,0,0x0010 + mtctr r3 +pci_wait: + bdnz pci_wait + + blr /* return to main code */ + +/* +!----------------------------------------------------------------------------- +! Function: pll_write +! Description: Updates the value of the CPC0_PLLMR according to CMOS27E documentation +! That is: +! 1. Pll is first disabled (de-activated by putting in bypass mode) +! 2. PLL is reset +! 3. Clock dividers are set while PLL is held in reset and bypassed +! 4. PLL Reset is cleared +! 5. Wait 100us for PLL to lock +! 6. A core reset is performed +! Input: r3 = Value to write to CPC0_PLLMR0 +! Input: r4 = Value to write to CPC0_PLLMR1 +! Output r3 = none +!----------------------------------------------------------------------------- +*/ + .globl pll_write +pll_write: + mfdcr r5, CPC0_UCR + andis. r5,r5,0xFFFF + ori r5,r5,0x0101 /* Stop the UART clocks */ + mtdcr CPC0_UCR,r5 /* Before changing PLL */ + + mfdcr r5, CPC0_PLLMR1 + rlwinm r5,r5,0,0x7FFFFFFF /* Disable PLL */ + mtdcr CPC0_PLLMR1,r5 + oris r5,r5,0x4000 /* Set PLL Reset */ + mtdcr CPC0_PLLMR1,r5 + + mtdcr CPC0_PLLMR0,r3 /* Set clock dividers */ + rlwinm r5,r4,0,0x3FFFFFFF /* Reset & Bypass new PLL dividers */ + oris r5,r5,0x4000 /* Set PLL Reset */ + mtdcr CPC0_PLLMR1,r5 /* Set clock dividers */ + rlwinm r5,r5,0,0xBFFFFFFF /* Clear PLL Reset */ + mtdcr CPC0_PLLMR1,r5 + + /* + ! Wait min of 100us for PLL to lock. + ! See CMOS 27E databook for more info. + ! At 200MHz, that means waiting 20,000 instructions + */ + addi r3,0,20000 /* 2000 = 0x4e20 */ + mtctr r3 +pll_wait: + bdnz pll_wait + + oris r5,r5,0x8000 /* Enable PLL */ + mtdcr CPC0_PLLMR1,r5 /* Engage */ + + /* + * Reset CPU to guarantee timings are OK + * Not sure if this is needed... + */ + addis r3,0,0x1000 + mtspr SPRN_DBCR0,r3 /* This will cause a CPU core reset, and */ + /* execution will continue from the poweron */ + /* vector of 0xfffffffc */ +#endif /* CONFIG_405EP */ + +#if defined(CONFIG_440) +/*----------------------------------------------------------------------------+ +| mttlb3. ++----------------------------------------------------------------------------*/ + function_prolog(mttlb3) + TLBWE(4,3,2) + blr + function_epilog(mttlb3) + +/*----------------------------------------------------------------------------+ +| mftlb3. ++----------------------------------------------------------------------------*/ + function_prolog(mftlb3) + TLBRE(3,3,2) + blr + function_epilog(mftlb3) + +/*----------------------------------------------------------------------------+ +| mttlb2. ++----------------------------------------------------------------------------*/ + function_prolog(mttlb2) + TLBWE(4,3,1) + blr + function_epilog(mttlb2) + +/*----------------------------------------------------------------------------+ +| mftlb2. ++----------------------------------------------------------------------------*/ + function_prolog(mftlb2) + TLBRE(3,3,1) + blr + function_epilog(mftlb2) + +/*----------------------------------------------------------------------------+ +| mttlb1. ++----------------------------------------------------------------------------*/ + function_prolog(mttlb1) + TLBWE(4,3,0) + blr + function_epilog(mttlb1) + +/*----------------------------------------------------------------------------+ +| mftlb1. ++----------------------------------------------------------------------------*/ + function_prolog(mftlb1) + TLBRE(3,3,0) + blr + function_epilog(mftlb1) +#endif /* CONFIG_440 */ + +#if defined(CONFIG_NAND_SPL) +/* + * void nand_boot_relocate(dst, src, bytes) + * + * r3 = Destination address to copy code to (in SDRAM) + * r4 = Source address to copy code from + * r5 = size to copy in bytes + */ +nand_boot_relocate: + mr r6,r3 + mr r7,r4 + mflr r8 + + /* + * Copy SPL from icache into SDRAM + */ + subi r3,r3,4 + subi r4,r4,4 + srwi r5,r5,2 + mtctr r5 +..spl_loop: + lwzu r0,4(r4) + stwu r0,4(r3) + bdnz ..spl_loop + + /* + * Calculate "corrected" link register, so that we "continue" + * in execution in destination range + */ + sub r3,r7,r6 /* r3 = src - dst */ + sub r8,r8,r3 /* r8 = link-reg - (src - dst) */ + mtlr r8 + blr + +nand_boot_common: + /* + * First initialize SDRAM. It has to be available *before* calling + * nand_boot(). + */ + lis r3,CONFIG_SYS_SDRAM_BASE@h + ori r3,r3,CONFIG_SYS_SDRAM_BASE@l + bl initdram + + /* + * Now copy the 4k SPL code into SDRAM and continue execution + * from there. + */ + lis r3,CONFIG_SYS_NAND_BOOT_SPL_DST@h + ori r3,r3,CONFIG_SYS_NAND_BOOT_SPL_DST@l + lis r4,CONFIG_SYS_NAND_BOOT_SPL_SRC@h + ori r4,r4,CONFIG_SYS_NAND_BOOT_SPL_SRC@l + lis r5,CONFIG_SYS_NAND_BOOT_SPL_SIZE@h + ori r5,r5,CONFIG_SYS_NAND_BOOT_SPL_SIZE@l + bl nand_boot_relocate + + /* + * We're running from SDRAM now!!! + * + * It is necessary for 4xx systems to relocate from running at + * the original location (0xfffffxxx) to somewhere else (SDRAM + * preferably). This is because CS0 needs to be reconfigured for + * NAND access. And we can't reconfigure this CS when currently + * "running" from it. + */ + + /* + * Finally call nand_boot() to load main NAND U-Boot image from + * NAND and jump to it. + */ + bl nand_boot /* will not return */ +#endif /* CONFIG_NAND_SPL */ diff --git a/arch/ppc/cpu/ppc4xx/tlb.c b/arch/ppc/cpu/ppc4xx/tlb.c new file mode 100644 index 0000000..24a9a9c --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/tlb.c @@ -0,0 +1,352 @@ +/* + * (C) Copyright 2007 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +#if defined(CONFIG_440) + +#include <ppc440.h> +#include <asm/cache.h> +#include <asm/io.h> +#include <asm/mmu.h> + +typedef struct region { + u64 base; + u32 size; + u32 tlb_word2_i_value; +} region_t; + +void remove_tlb(u32 vaddr, u32 size) +{ + int i; + u32 tlb_word0_value; + u32 tlb_vaddr; + u32 tlb_size = 0; + + for (i=0; i<PPC4XX_TLB_SIZE; i++) { + tlb_word0_value = mftlb1(i); + tlb_vaddr = TLB_WORD0_EPN_DECODE(tlb_word0_value); + if (((tlb_word0_value & TLB_WORD0_V_MASK) == TLB_WORD0_V_ENABLE) && + (tlb_vaddr >= vaddr)) { + /* + * TLB is enabled and start address is lower or equal + * than the area we are looking for. Now we only have + * to check the size/end address for a match. + */ + switch (tlb_word0_value & TLB_WORD0_SIZE_MASK) { + case TLB_WORD0_SIZE_1KB: + tlb_size = 1 << 10; + break; + case TLB_WORD0_SIZE_4KB: + tlb_size = 4 << 10; + break; + case TLB_WORD0_SIZE_16KB: + tlb_size = 16 << 10; + break; + case TLB_WORD0_SIZE_64KB: + tlb_size = 64 << 10; + break; + case TLB_WORD0_SIZE_256KB: + tlb_size = 256 << 10; + break; + case TLB_WORD0_SIZE_1MB: + tlb_size = 1 << 20; + break; + case TLB_WORD0_SIZE_16MB: + tlb_size = 16 << 20; + break; + case TLB_WORD0_SIZE_256MB: + tlb_size = 256 << 20; + break; + } + + /* + * Now check the end-address if it's in the range + */ + if ((tlb_vaddr + tlb_size - 1) <= (vaddr + size - 1)) + /* + * Found a TLB in the range. + * Disable it by writing 0 to tlb0 word. + */ + mttlb1(i, 0); + } + } + + /* Execute an ISYNC instruction so that the new TLB entry takes effect */ + asm("isync"); +} + +/* + * Change the I attribute (cache inhibited) of a TLB or multiple TLB's. + * This function is used to either turn cache on or off in a specific + * memory area. + */ +void change_tlb(u32 vaddr, u32 size, u32 tlb_word2_i_value) +{ + int i; + u32 tlb_word0_value; + u32 tlb_word2_value; + u32 tlb_vaddr; + u32 tlb_size = 0; + + for (i=0; i<PPC4XX_TLB_SIZE; i++) { + tlb_word0_value = mftlb1(i); + tlb_vaddr = TLB_WORD0_EPN_DECODE(tlb_word0_value); + if (((tlb_word0_value & TLB_WORD0_V_MASK) == TLB_WORD0_V_ENABLE) && + (tlb_vaddr >= vaddr)) { + /* + * TLB is enabled and start address is lower or equal + * than the area we are looking for. Now we only have + * to check the size/end address for a match. + */ + switch (tlb_word0_value & TLB_WORD0_SIZE_MASK) { + case TLB_WORD0_SIZE_1KB: + tlb_size = 1 << 10; + break; + case TLB_WORD0_SIZE_4KB: + tlb_size = 4 << 10; + break; + case TLB_WORD0_SIZE_16KB: + tlb_size = 16 << 10; + break; + case TLB_WORD0_SIZE_64KB: + tlb_size = 64 << 10; + break; + case TLB_WORD0_SIZE_256KB: + tlb_size = 256 << 10; + break; + case TLB_WORD0_SIZE_1MB: + tlb_size = 1 << 20; + break; + case TLB_WORD0_SIZE_16MB: + tlb_size = 16 << 20; + break; + case TLB_WORD0_SIZE_256MB: + tlb_size = 256 << 20; + break; + } + + /* + * Now check the end-address if it's in the range + */ + if (((tlb_vaddr + tlb_size - 1) <= (vaddr + size - 1)) || + ((tlb_vaddr < (vaddr + size - 1)) && + ((tlb_vaddr + tlb_size - 1) > (vaddr + size - 1)))) { + /* + * Found a TLB in the range. + * Change cache attribute in tlb2 word. + */ + tlb_word2_value = + TLB_WORD2_U0_DISABLE | TLB_WORD2_U1_DISABLE | + TLB_WORD2_U2_DISABLE | TLB_WORD2_U3_DISABLE | + TLB_WORD2_W_DISABLE | tlb_word2_i_value | + TLB_WORD2_M_DISABLE | TLB_WORD2_G_DISABLE | + TLB_WORD2_E_DISABLE | TLB_WORD2_UX_ENABLE | + TLB_WORD2_UW_ENABLE | TLB_WORD2_UR_ENABLE | + TLB_WORD2_SX_ENABLE | TLB_WORD2_SW_ENABLE | + TLB_WORD2_SR_ENABLE; + + /* + * Now either flush or invalidate the dcache + */ + if (tlb_word2_i_value) + flush_dcache(); + else + invalidate_dcache(); + + mttlb3(i, tlb_word2_value); + asm("iccci 0,0"); + } + } + } + + /* Execute an ISYNC instruction so that the new TLB entry takes effect */ + asm("isync"); +} + +static int add_tlb_entry(u64 phys_addr, + u32 virt_addr, + u32 tlb_word0_size_value, + u32 tlb_word2_i_value) +{ + int i; + unsigned long tlb_word0_value; + unsigned long tlb_word1_value; + unsigned long tlb_word2_value; + + /* First, find the index of a TLB entry not being used */ + for (i=0; i<PPC4XX_TLB_SIZE; i++) { + tlb_word0_value = mftlb1(i); + if ((tlb_word0_value & TLB_WORD0_V_MASK) == TLB_WORD0_V_DISABLE) + break; + } + if (i >= PPC4XX_TLB_SIZE) + return -1; + + /* Second, create the TLB entry */ + tlb_word0_value = TLB_WORD0_EPN_ENCODE(virt_addr) | TLB_WORD0_V_ENABLE | + TLB_WORD0_TS_0 | tlb_word0_size_value; + tlb_word1_value = TLB_WORD1_RPN_ENCODE((u32)phys_addr) | + TLB_WORD1_ERPN_ENCODE(phys_addr >> 32); + tlb_word2_value = TLB_WORD2_U0_DISABLE | TLB_WORD2_U1_DISABLE | + TLB_WORD2_U2_DISABLE | TLB_WORD2_U3_DISABLE | + TLB_WORD2_W_DISABLE | tlb_word2_i_value | + TLB_WORD2_M_DISABLE | TLB_WORD2_G_DISABLE | + TLB_WORD2_E_DISABLE | TLB_WORD2_UX_ENABLE | + TLB_WORD2_UW_ENABLE | TLB_WORD2_UR_ENABLE | + TLB_WORD2_SX_ENABLE | TLB_WORD2_SW_ENABLE | + TLB_WORD2_SR_ENABLE; + + /* Wait for all memory accesses to complete */ + sync(); + + /* Third, add the TLB entries */ + mttlb1(i, tlb_word0_value); + mttlb2(i, tlb_word1_value); + mttlb3(i, tlb_word2_value); + + /* Execute an ISYNC instruction so that the new TLB entry takes effect */ + asm("isync"); + + return 0; +} + +static void program_tlb_addr(u64 phys_addr, + u32 virt_addr, + u32 mem_size, + u32 tlb_word2_i_value) +{ + int rc; + int tlb_i; + + tlb_i = tlb_word2_i_value; + while (mem_size != 0) { + rc = 0; + /* Add the TLB entries in to map the region. */ + if (((phys_addr & TLB_256MB_ALIGN_MASK) == phys_addr) && + (mem_size >= TLB_256MB_SIZE)) { + /* Add a 256MB TLB entry */ + if ((rc = add_tlb_entry(phys_addr, virt_addr, + TLB_WORD0_SIZE_256MB, tlb_i)) == 0) { + mem_size -= TLB_256MB_SIZE; + phys_addr += TLB_256MB_SIZE; + virt_addr += TLB_256MB_SIZE; + } + } else if (((phys_addr & TLB_16MB_ALIGN_MASK) == phys_addr) && + (mem_size >= TLB_16MB_SIZE)) { + /* Add a 16MB TLB entry */ + if ((rc = add_tlb_entry(phys_addr, virt_addr, + TLB_WORD0_SIZE_16MB, tlb_i)) == 0) { + mem_size -= TLB_16MB_SIZE; + phys_addr += TLB_16MB_SIZE; + virt_addr += TLB_16MB_SIZE; + } + } else if (((phys_addr & TLB_1MB_ALIGN_MASK) == phys_addr) && + (mem_size >= TLB_1MB_SIZE)) { + /* Add a 1MB TLB entry */ + if ((rc = add_tlb_entry(phys_addr, virt_addr, + TLB_WORD0_SIZE_1MB, tlb_i)) == 0) { + mem_size -= TLB_1MB_SIZE; + phys_addr += TLB_1MB_SIZE; + virt_addr += TLB_1MB_SIZE; + } + } else if (((phys_addr & TLB_256KB_ALIGN_MASK) == phys_addr) && + (mem_size >= TLB_256KB_SIZE)) { + /* Add a 256KB TLB entry */ + if ((rc = add_tlb_entry(phys_addr, virt_addr, + TLB_WORD0_SIZE_256KB, tlb_i)) == 0) { + mem_size -= TLB_256KB_SIZE; + phys_addr += TLB_256KB_SIZE; + virt_addr += TLB_256KB_SIZE; + } + } else if (((phys_addr & TLB_64KB_ALIGN_MASK) == phys_addr) && + (mem_size >= TLB_64KB_SIZE)) { + /* Add a 64KB TLB entry */ + if ((rc = add_tlb_entry(phys_addr, virt_addr, + TLB_WORD0_SIZE_64KB, tlb_i)) == 0) { + mem_size -= TLB_64KB_SIZE; + phys_addr += TLB_64KB_SIZE; + virt_addr += TLB_64KB_SIZE; + } + } else if (((phys_addr & TLB_16KB_ALIGN_MASK) == phys_addr) && + (mem_size >= TLB_16KB_SIZE)) { + /* Add a 16KB TLB entry */ + if ((rc = add_tlb_entry(phys_addr, virt_addr, + TLB_WORD0_SIZE_16KB, tlb_i)) == 0) { + mem_size -= TLB_16KB_SIZE; + phys_addr += TLB_16KB_SIZE; + virt_addr += TLB_16KB_SIZE; + } + } else if (((phys_addr & TLB_4KB_ALIGN_MASK) == phys_addr) && + (mem_size >= TLB_4KB_SIZE)) { + /* Add a 4KB TLB entry */ + if ((rc = add_tlb_entry(phys_addr, virt_addr, + TLB_WORD0_SIZE_4KB, tlb_i)) == 0) { + mem_size -= TLB_4KB_SIZE; + phys_addr += TLB_4KB_SIZE; + virt_addr += TLB_4KB_SIZE; + } + } else if (((phys_addr & TLB_1KB_ALIGN_MASK) == phys_addr) && + (mem_size >= TLB_1KB_SIZE)) { + /* Add a 1KB TLB entry */ + if ((rc = add_tlb_entry(phys_addr, virt_addr, + TLB_WORD0_SIZE_1KB, tlb_i)) == 0) { + mem_size -= TLB_1KB_SIZE; + phys_addr += TLB_1KB_SIZE; + virt_addr += TLB_1KB_SIZE; + } + } else { + printf("ERROR: no TLB size exists for the base address 0x%llx.\n", + phys_addr); + } + + if (rc != 0) + printf("ERROR: no TLB entries available for the base addr 0x%llx.\n", + phys_addr); + } + + return; +} + +/* + * Program one (or multiple) TLB entries for one memory region + * + * Common usage for boards with SDRAM DIMM modules to dynamically + * configure the TLB's for the SDRAM + */ +void program_tlb(u64 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value) +{ + region_t region_array; + + region_array.base = phys_addr; + region_array.size = size; + region_array.tlb_word2_i_value = tlb_word2_i_value; /* en-/disable cache */ + + /* Call the routine to add in the tlb entries for the memory regions */ + program_tlb_addr(region_array.base, virt_addr, region_array.size, + region_array.tlb_word2_i_value); + + return; +} + +#endif /* CONFIG_440 */ diff --git a/arch/ppc/cpu/ppc4xx/traps.c b/arch/ppc/cpu/ppc4xx/traps.c new file mode 100644 index 0000000..42e4221 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/traps.c @@ -0,0 +1,409 @@ +/* + * linux/arch/ppc/kernel/traps.c + * + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * Modified by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras (paulus@cs.anu.edu.au) + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * This file handles the architecture-dependent parts of hardware exceptions + */ + +#include <common.h> +#include <command.h> +#include <kgdb.h> +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* Returns 0 if exception not found and fixup otherwise. */ +extern unsigned long search_exception_table(unsigned long); + +/* THIS NEEDS CHANGING to use the board info structure. + */ +#define END_OF_MEM (gd->bd->bi_memstart + gd->bd->bi_memsize) + +static __inline__ void set_tsr(unsigned long val) +{ +#if defined(CONFIG_440) + asm volatile("mtspr 0x150, %0" : : "r" (val)); +#else + asm volatile("mttsr %0" : : "r" (val)); +#endif +} + +static __inline__ unsigned long get_esr(void) +{ + unsigned long val; + +#if defined(CONFIG_440) + asm volatile("mfspr %0, 0x03e" : "=r" (val) :); +#else + asm volatile("mfesr %0" : "=r" (val) :); +#endif + return val; +} + +#define ESR_MCI 0x80000000 +#define ESR_PIL 0x08000000 +#define ESR_PPR 0x04000000 +#define ESR_PTR 0x02000000 +#define ESR_DST 0x00800000 +#define ESR_DIZ 0x00400000 +#define ESR_U0F 0x00008000 + +#if defined(CONFIG_CMD_BEDBUG) +extern void do_bedbug_breakpoint(struct pt_regs *); +#endif + +/* + * Trap & Exception support + */ + +void +print_backtrace(unsigned long *sp) +{ + int cnt = 0; + unsigned long i; + + printf("Call backtrace: "); + while (sp) { + if ((uint)sp > END_OF_MEM) + break; + + i = sp[1]; + if (cnt++ % 7 == 0) + printf("\n"); + printf("%08lX ", i); + if (cnt > 32) break; + sp = (unsigned long *)*sp; + } + printf("\n"); +} + +void show_regs(struct pt_regs * regs) +{ + int i; + + printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DEAR: %08lX\n", + regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); + printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n", + regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0, + regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0, + regs->msr&MSR_IR ? 1 : 0, + regs->msr&MSR_DR ? 1 : 0); + + printf("\n"); + for (i = 0; i < 32; i++) { + if ((i % 8) == 0) { + printf("GPR%02d: ", i); + } + + printf("%08lX ", regs->gpr[i]); + if ((i % 8) == 7) { + printf("\n"); + } + } +} + + +void +_exception(int signr, struct pt_regs *regs) +{ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Exception"); +} + +void +MachineCheckException(struct pt_regs *regs) +{ + unsigned long fixup, val; +#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) + u32 value2; + int corr_ecc = 0; + int uncorr_ecc = 0; +#endif + + if ((fixup = search_exception_table(regs->nip)) != 0) { + regs->nip = fixup; + val = mfspr(MCSR); + /* Clear MCSR */ + mtspr(SPRN_MCSR, val); + return; + } + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + printf("Machine Check Exception.\n"); + printf("Caused by (from msr): "); + printf("regs %p ", regs); + + val = get_esr(); + +#if !defined(CONFIG_440) && !defined(CONFIG_405EX) + if (val& ESR_IMCP) { + printf("Instruction"); + mtspr(ESR, val & ~ESR_IMCP); + } else { + printf("Data"); + } + printf(" machine check.\n"); + +#elif defined(CONFIG_440) || defined(CONFIG_405EX) + if (val& ESR_IMCP){ + printf("Instruction Synchronous Machine Check exception\n"); + mtspr(SPRN_ESR, val & ~ESR_IMCP); + } else { + val = mfspr(MCSR); + if (val & MCSR_IB) + printf("Instruction Read PLB Error\n"); +#if defined(CONFIG_440) + if (val & MCSR_DRB) + printf("Data Read PLB Error\n"); + if (val & MCSR_DWB) + printf("Data Write PLB Error\n"); +#else + if (val & MCSR_DB) + printf("Data PLB Error\n"); +#endif + if (val & MCSR_TLBP) + printf("TLB Parity Error\n"); + if (val & MCSR_ICP){ + /*flush_instruction_cache(); */ + printf("I-Cache Parity Error\n"); + } + if (val & MCSR_DCSP) + printf("D-Cache Search Parity Error\n"); + if (val & MCSR_DCFP) + printf("D-Cache Flush Parity Error\n"); + if (val & MCSR_IMPE) + printf("Machine Check exception is imprecise\n"); + + /* Clear MCSR */ + mtspr(SPRN_MCSR, val); + } +#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) + mfsdram(DDR0_00, val) ; + printf("DDR0: DDR0_00 %lx\n", val); + val = (val >> 16) & 0xff; + if (val & 0x80) + printf("DDR0: At least one interrupt active\n"); + if (val & 0x40) + printf("DDR0: DRAM initialization complete.\n"); + if (val & 0x20) { + printf("DDR0: Multiple uncorrectable ECC events.\n"); + uncorr_ecc = 1; + } + if (val & 0x10) { + printf("DDR0: Single uncorrectable ECC event.\n"); + uncorr_ecc = 1; + } + if (val & 0x08) { + printf("DDR0: Multiple correctable ECC events.\n"); + corr_ecc = 1; + } + if (val & 0x04) { + printf("DDR0: Single correctable ECC event.\n"); + corr_ecc = 1; + } + if (val & 0x02) + printf("Multiple accesses outside the defined" + " physical memory space detected\n"); + if (val & 0x01) + printf("DDR0: Single access outside the defined" + " physical memory space detected.\n"); + + mfsdram(DDR0_01, val); + val = (val >> 8) & 0x7; + switch (val ) { + case 0: + printf("DDR0: Write Out-of-Range command\n"); + break; + case 1: + printf("DDR0: Read Out-of-Range command\n"); + break; + case 2: + printf("DDR0: Masked write Out-of-Range command\n"); + break; + case 4: + printf("DDR0: Wrap write Out-of-Range command\n"); + break; + case 5: + printf("DDR0: Wrap read Out-of-Range command\n"); + break; + default: + mfsdram(DDR0_01, value2); + printf("DDR0: No DDR0 error know 0x%lx %x\n", val, value2); + } + mfsdram(DDR0_23, val); + if (((val >> 16) & 0xff) && corr_ecc) + printf("DDR0: Syndrome for correctable ECC event 0x%lx\n", + (val >> 16) & 0xff); + mfsdram(DDR0_23, val); + if (((val >> 8) & 0xff) && uncorr_ecc) + printf("DDR0: Syndrome for uncorrectable ECC event 0x%lx\n", + (val >> 8) & 0xff); + mfsdram(DDR0_33, val); + if (val) + printf("DDR0: Address of command that caused an " + "Out-of-Range interrupt %lx\n", val); + mfsdram(DDR0_34, val); + if (val && uncorr_ecc) + printf("DDR0: Address of uncorrectable ECC event %lx\n", val); + mfsdram(DDR0_35, val); + if (val && uncorr_ecc) + printf("DDR0: Address of uncorrectable ECC event %lx\n", val); + mfsdram(DDR0_36, val); + if (val && uncorr_ecc) + printf("DDR0: Data of uncorrectable ECC event 0x%08lx\n", val); + mfsdram(DDR0_37, val); + if (val && uncorr_ecc) + printf("DDR0: Data of uncorrectable ECC event 0x%08lx\n", val); + mfsdram(DDR0_38, val); + if (val && corr_ecc) + printf("DDR0: Address of correctable ECC event %lx\n", val); + mfsdram(DDR0_39, val); + if (val && corr_ecc) + printf("DDR0: Address of correctable ECC event %lx\n", val); + mfsdram(DDR0_40, val); + if (val && corr_ecc) + printf("DDR0: Data of correctable ECC event 0x%08lx\n", val); + mfsdram(DDR0_41, val); + if (val && corr_ecc) + printf("DDR0: Data of correctable ECC event 0x%08lx\n", val); +#endif /* CONFIG_440EPX */ +#endif /* CONFIG_440 */ + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("machine check"); +} + +void +AlignmentException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + show_regs(regs); + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Alignment Exception"); +} + +void +ProgramCheckException(struct pt_regs *regs) +{ + long esr_val; + +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + show_regs(regs); + + esr_val = get_esr(); + if( esr_val & ESR_PIL ) + printf( "** Illegal Instruction **\n" ); + else if( esr_val & ESR_PPR ) + printf( "** Privileged Instruction **\n" ); + else if( esr_val & ESR_PTR ) + printf( "** Trap Instruction **\n" ); + + print_backtrace((unsigned long *)regs->gpr[1]); + panic("Program Check Exception"); +} + +void +DecrementerPITException(struct pt_regs *regs) +{ + /* + * Reset PIT interrupt + */ + set_tsr(0x08000000); + + /* + * Call timer_interrupt routine in interrupts.c + */ + timer_interrupt(NULL); +} + + +void +UnknownException(struct pt_regs *regs) +{ +#if defined(CONFIG_CMD_KGDB) + if (debugger_exception_handler && (*debugger_exception_handler)(regs)) + return; +#endif + + printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", + regs->nip, regs->msr, regs->trap); + _exception(0, regs); +} + +void +DebugException(struct pt_regs *regs) +{ + printf("Debugger trap at @ %lx\n", regs->nip ); + show_regs(regs); +#if defined(CONFIG_CMD_BEDBUG) + do_bedbug_breakpoint( regs ); +#endif +} + +/* Probe an address by reading. If not present, return -1, otherwise + * return 0. + */ +int +addr_probe(uint *addr) +{ +#if 0 + int retval; + + __asm__ __volatile__( \ + "1: lwz %0,0(%1)\n" \ + " eieio\n" \ + " li %0,0\n" \ + "2:\n" \ + ".section .fixup,\"ax\"\n" \ + "3: li %0,-1\n" \ + " b 2b\n" \ + ".section __ex_table,\"a\"\n" \ + " .align 2\n" \ + " .long 1b,3b\n" \ + ".text" \ + : "=r" (retval) : "r"(addr)); + + return (retval); +#endif + return 0; +} diff --git a/arch/ppc/cpu/ppc4xx/u-boot.lds b/arch/ppc/cpu/ppc4xx/u-boot.lds new file mode 100644 index 0000000..3704d8a --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/u-boot.lds @@ -0,0 +1,169 @@ +/* + * Copyright 2007-2009 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include "config.h" /* CONFIG_BOARDDIR */ + +#ifndef RESET_VECTOR_ADDRESS +#define RESET_VECTOR_ADDRESS 0xfffffffc +#endif + +OUTPUT_ARCH(powerpc) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +PHDRS +{ + text PT_LOAD; + bss PT_LOAD; +} + +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + *(.text) + *(.got1) + } :text + _etext = .; + PROVIDE (etext = .); + .rodata : + { + *(.eh_frame) + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } :text + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x00FF) & 0xFFFFFF00; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(256); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(256); + __init_end = .; + +#ifdef CONFIG_440 + .bootpg RESET_VECTOR_ADDRESS - 0xffc : + { + arch/ppc/cpu/ppc4xx/start.o (.bootpg) + + /* + * PPC440 board need a board specific object with the + * TLB definitions. This needs to get included right after + * start.o, since the first shadow TLB only covers 4k + * of address space. + */ + CONFIG_BOARDDIR/init.o (.bootpg) + } :text = 0xffff +#endif + + .resetvec RESET_VECTOR_ADDRESS : + { + *(.resetvec) + } :text = 0xffff + + . = RESET_VECTOR_ADDRESS + 0x4; + + /* + * Make sure that the bss segment isn't linked at 0x0, otherwise its + * address won't be updated during relocation fixups. Note that + * this is a temporary fix. Code to dynamically the fixup the bss + * location will be added in the future. When the bss relocation + * fixup code is present this workaround should be removed. + */ +#if (RESET_VECTOR_ADDRESS == 0xfffffffc) + . |= 0x10; +#endif + + __bss_start = .; + .bss (NOLOAD) : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + } :bss + + . = ALIGN(4); + _end = . ; + PROVIDE (end = .); +} diff --git a/arch/ppc/cpu/ppc4xx/uic.c b/arch/ppc/cpu/ppc4xx/uic.c new file mode 100644 index 0000000..8b1b259 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/uic.c @@ -0,0 +1,180 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2002 (440 port) + * Scott McNutt, Artesyn Communication Producs, smcnutt@artsyncp.com + * + * (C) Copyright 2003 (440GX port) + * Travis B. Sawyer, Sandburst Corporation, tsawyer@sandburst.com + * + * (C) Copyright 2008 (PPC440X05 port for Virtex 5 FX) + * Ricardo Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es + * Work supported by Qtechnology (htpp://qtec.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <asm/processor.h> +#include <asm/interrupt.h> +#include <ppc4xx.h> +#include <ppc_asm.tmpl> +#include <commproc.h> + +#if (UIC_MAX > 3) +#define UICB0_ALL (UIC_MASK(VECNUM_UIC1CI) | UIC_MASK(VECNUM_UIC1NCI) | \ + UIC_MASK(VECNUM_UIC2CI) | UIC_MASK(VECNUM_UIC2NCI) | \ + UIC_MASK(VECNUM_UIC3CI) | UIC_MASK(VECNUM_UIC3NCI)) +#elif (UIC_MAX > 2) +#define UICB0_ALL (UIC_MASK(VECNUM_UIC1CI) | UIC_MASK(VECNUM_UIC1NCI) | \ + UIC_MASK(VECNUM_UIC2CI) | UIC_MASK(VECNUM_UIC2NCI)) +#elif (UIC_MAX > 1) +#define UICB0_ALL (UIC_MASK(VECNUM_UIC1CI) | UIC_MASK(VECNUM_UIC1NCI)) +#else +#define UICB0_ALL 0 +#endif + +u32 get_dcr(u16); + +DECLARE_GLOBAL_DATA_PTR; + +void pic_enable(void) +{ +#if (UIC_MAX > 1) + /* Install the UIC1 handlers */ + irq_install_handler(VECNUM_UIC1NCI, (void *)(void *)external_interrupt, 0); + irq_install_handler(VECNUM_UIC1CI, (void *)(void *)external_interrupt, 0); +#endif +#if (UIC_MAX > 2) + irq_install_handler(VECNUM_UIC2NCI, (void *)(void *)external_interrupt, 0); + irq_install_handler(VECNUM_UIC2CI, (void *)(void *)external_interrupt, 0); +#endif +#if (UIC_MAX > 3) + irq_install_handler(VECNUM_UIC3NCI, (void *)(void *)external_interrupt, 0); + irq_install_handler(VECNUM_UIC3CI, (void *)(void *)external_interrupt, 0); +#endif +} + +/* Handler for UIC interrupt */ +static void uic_interrupt(u32 uic_base, int vec_base) +{ + u32 uic_msr; + u32 msr_shift; + int vec; + + /* + * Read masked interrupt status register to determine interrupt source + */ + uic_msr = get_dcr(uic_base + UIC_MSR); + msr_shift = uic_msr; + vec = vec_base; + + while (msr_shift != 0) { + if (msr_shift & 0x80000000) + interrupt_run_handler(vec); + /* + * Shift msr to next position and increment vector + */ + msr_shift <<= 1; + vec++; + } +} + +/* + * Handle external interrupts + */ +void external_interrupt(struct pt_regs *regs) +{ + u32 uic_msr; + + /* + * Read masked interrupt status register to determine interrupt source + */ + uic_msr = mfdcr(UIC0MSR); + +#if (UIC_MAX > 1) + if ((UIC_MASK(VECNUM_UIC1CI) & uic_msr) || + (UIC_MASK(VECNUM_UIC1NCI) & uic_msr)) + uic_interrupt(UIC1_DCR_BASE, 32); +#endif + +#if (UIC_MAX > 2) + if ((UIC_MASK(VECNUM_UIC2CI) & uic_msr) || + (UIC_MASK(VECNUM_UIC2NCI) & uic_msr)) + uic_interrupt(UIC2_DCR_BASE, 64); +#endif + +#if (UIC_MAX > 3) + if ((UIC_MASK(VECNUM_UIC3CI) & uic_msr) || + (UIC_MASK(VECNUM_UIC3NCI) & uic_msr)) + uic_interrupt(UIC3_DCR_BASE, 96); +#endif + + mtdcr(UIC0SR, (uic_msr & UICB0_ALL)); + + if (uic_msr & ~(UICB0_ALL)) + uic_interrupt(UIC0_DCR_BASE, 0); + + return; +} + +void pic_irq_ack(unsigned int vec) +{ + if ((vec >= 0) && (vec < 32)) + mtdcr(UIC0SR, UIC_MASK(vec)); + else if ((vec >= 32) && (vec < 64)) + mtdcr(UIC1SR, UIC_MASK(vec)); + else if ((vec >= 64) && (vec < 96)) + mtdcr(UIC2SR, UIC_MASK(vec)); + else if (vec >= 96) + mtdcr(UIC3SR, UIC_MASK(vec)); +} + +/* + * Install and free a interrupt handler. + */ +void pic_irq_enable(unsigned int vec) +{ + + if ((vec >= 0) && (vec < 32)) + mtdcr(UIC0ER, mfdcr(UIC0ER) | UIC_MASK(vec)); + else if ((vec >= 32) && (vec < 64)) + mtdcr(UIC1ER, mfdcr(UIC1ER) | UIC_MASK(vec)); + else if ((vec >= 64) && (vec < 96)) + mtdcr(UIC2ER, mfdcr(UIC2ER) | UIC_MASK(vec)); + else if (vec >= 96) + mtdcr(UIC3ER, mfdcr(UIC3ER) | UIC_MASK(vec)); + + debug("Install interrupt vector %d\n", vec); +} + +void pic_irq_disable(unsigned int vec) +{ + if ((vec >= 0) && (vec < 32)) + mtdcr(UIC0ER, mfdcr(UIC0ER) & ~UIC_MASK(vec)); + else if ((vec >= 32) && (vec < 64)) + mtdcr(UIC1ER, mfdcr(UIC1ER) & ~UIC_MASK(vec)); + else if ((vec >= 64) && (vec < 96)) + mtdcr(UIC2ER, mfdcr(UIC2ER) & ~UIC_MASK(vec)); + else if (vec >= 96) + mtdcr(UIC3ER, mfdcr(UIC3ER) & ~UIC_MASK(vec)); +} diff --git a/arch/ppc/cpu/ppc4xx/usb.c b/arch/ppc/cpu/ppc4xx/usb.c new file mode 100644 index 0000000..592efe7 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/usb.c @@ -0,0 +1,66 @@ +/* + * (C) Copyright 2007 + * Markus Klotzbuecher, DENX Software Engineering <mk@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) + +#ifdef CONFIG_4xx_DCACHE +#include <asm/mmu.h> +DECLARE_GLOBAL_DATA_PTR; +#endif + +#include "usbdev.h" + +int usb_cpu_init(void) +{ +#ifdef CONFIG_4xx_DCACHE + /* disable cache */ + change_tlb(gd->bd->bi_memstart, gd->bd->bi_memsize, TLB_WORD2_I_ENABLE); +#endif + +#if defined(CONFIG_440EP) || defined(CONFIG_440EPX) + usb_dev_init(); +#endif + return 0; +} + +int usb_cpu_stop(void) +{ +#ifdef CONFIG_4xx_DCACHE + /* enable cache */ + change_tlb(gd->bd->bi_memstart, gd->bd->bi_memsize, 0); +#endif + return 0; +} + +int usb_cpu_init_fail(void) +{ +#ifdef CONFIG_4xx_DCACHE + /* enable cache */ + change_tlb(gd->bd->bi_memstart, gd->bd->bi_memsize, 0); +#endif + return 0; +} + +#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */ diff --git a/arch/ppc/cpu/ppc4xx/usb_ohci.c b/arch/ppc/cpu/ppc4xx/usb_ohci.c new file mode 100644 index 0000000..a9edacd --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/usb_ohci.c @@ -0,0 +1,1648 @@ +/* + * URB OHCI HCD (Host Controller Driver) for USB on the PPC440EP. + * + * (C) Copyright 2003-2004 + * Gary Jennejohn, DENX Software Engineering <garyj@denx.de> + * + * (C) Copyright 2004 + * Pierre Aubert, Staubli Faverges <p.aubert@staubli.com> + * + * Note: Much of this code has been derived from Linux 2.4 + * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> + * (C) Copyright 2000-2002 David Brownell + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ +/* + * IMPORTANT NOTES + * 1 - this driver is intended for use with USB Mass Storage Devices + * (BBB) ONLY. There is NO support for Interrupt or Isochronous pipes! + */ + +#include <common.h> + +#ifdef CONFIG_USB_OHCI + +#include <malloc.h> +#include <usb.h> +#include "usb_ohci.h" + +#include "usbdev.h" + +#define OHCI_USE_NPS /* force NoPowerSwitching mode */ +#undef OHCI_VERBOSE_DEBUG /* not always helpful */ +#undef DEBUG +#undef SHOW_INFO +#undef OHCI_FILL_TRACE + +/* For initializing controller (mask in an HCFS mode too) */ +#define OHCI_CONTROL_INIT \ + (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE + +#define readl(a) (*((volatile u32 *)(a))) +#define writel(a, b) (*((volatile u32 *)(b)) = ((volatile u32)a)) + +#define min_t(type,x,y) ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) + +#ifdef DEBUG +#define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg) +#else +#define dbg(format, arg...) do {} while(0) +#endif /* DEBUG */ +#define err(format, arg...) printf("ERROR: " format "\n", ## arg) +#ifdef SHOW_INFO +#define info(format, arg...) printf("INFO: " format "\n", ## arg) +#else +#define info(format, arg...) do {} while(0) +#endif + +#define m16_swap(x) swap_16(x) +#define m32_swap(x) swap_32(x) + +#if defined(CONFIG_405EZ) || defined(CONFIG_440EP) || defined(CONFIG_440EPX) +#define ohci_cpu_to_le16(x) (x) +#define ohci_cpu_to_le32(x) (x) +#else +#define ohci_cpu_to_le16(x) swap_16(x) +#define ohci_cpu_to_le32(x) swap_32(x) +#endif + +/* global ohci_t */ +static ohci_t gohci; +/* this must be aligned to a 256 byte boundary */ +struct ohci_hcca ghcca[1]; +/* a pointer to the aligned storage */ +struct ohci_hcca *phcca; +/* this allocates EDs for all possible endpoints */ +struct ohci_device ohci_dev; +/* urb_priv */ +urb_priv_t urb_priv; +/* RHSC flag */ +int got_rhsc; +/* device which was disconnected */ +struct usb_device *devgone; +/* flag guarding URB transation */ +int urb_finished = 0; + +/*-------------------------------------------------------------------------*/ + +/* AMD-756 (D2 rev) reports corrupt register contents in some cases. + * The erratum (#4) description is incorrect. AMD's workaround waits + * till some bits (mostly reserved) are clear; ok for all revs. + */ +#define OHCI_QUIRK_AMD756 0xabcd +#define read_roothub(hc, register, mask) ({ \ + u32 temp = readl (&hc->regs->roothub.register); \ + if (hc->flags & OHCI_QUIRK_AMD756) \ + while (temp & mask) \ + temp = readl (&hc->regs->roothub.register); \ + temp; }) + +static u32 roothub_a (struct ohci *hc) + { return read_roothub (hc, a, 0xfc0fe000); } +static inline u32 roothub_b (struct ohci *hc) + { return readl (&hc->regs->roothub.b); } +static inline u32 roothub_status (struct ohci *hc) + { return readl (&hc->regs->roothub.status); } +static u32 roothub_portstatus (struct ohci *hc, int i) + { return read_roothub (hc, portstatus [i], 0xffe0fce0); } + + +/* forward declaration */ +static int hc_interrupt (void); +static void +td_submit_job (struct usb_device * dev, unsigned long pipe, void * buffer, + int transfer_len, struct devrequest * setup, urb_priv_t * urb, int interval); + +/*-------------------------------------------------------------------------* + * URB support functions + *-------------------------------------------------------------------------*/ + +/* free HCD-private data associated with this URB */ + +static void urb_free_priv (urb_priv_t * urb) +{ + int i; + int last; + struct td * td; + + last = urb->length - 1; + if (last >= 0) { + for (i = 0; i <= last; i++) { + td = urb->td[i]; + if (td) { + td->usb_dev = NULL; + urb->td[i] = NULL; + } + } + } +} + +/*-------------------------------------------------------------------------*/ + +#ifdef DEBUG +static int sohci_get_current_frame_number (struct usb_device * dev); + +/* debug| print the main components of an URB + * small: 0) header + data packets 1) just header */ + +static void pkt_print (struct usb_device * dev, unsigned long pipe, void * buffer, + int transfer_len, struct devrequest * setup, char * str, int small) +{ + urb_priv_t * purb = &urb_priv; + + dbg("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,len:%d/%d stat:%#lx", + str, + sohci_get_current_frame_number (dev), + usb_pipedevice (pipe), + usb_pipeendpoint (pipe), + usb_pipeout (pipe)? 'O': 'I', + usb_pipetype (pipe) < 2? (usb_pipeint (pipe)? "INTR": "ISOC"): + (usb_pipecontrol (pipe)? "CTRL": "BULK"), + purb->actual_length, + transfer_len, dev->status); +#ifdef OHCI_VERBOSE_DEBUG + if (!small) { + int i, len; + + if (usb_pipecontrol (pipe)) { + printf (__FILE__ ": cmd(8):"); + for (i = 0; i < 8 ; i++) + printf (" %02x", ((__u8 *) setup) [i]); + printf ("\n"); + } + if (transfer_len > 0 && buffer) { + printf (__FILE__ ": data(%d/%d):", + purb->actual_length, + transfer_len); + len = usb_pipeout (pipe)? + transfer_len: purb->actual_length; + for (i = 0; i < 16 && i < len; i++) + printf (" %02x", ((__u8 *) buffer) [i]); + printf ("%s\n", i < len? "...": ""); + } + } +#endif +} + +/* just for debugging; prints non-empty branches of the int ed tree inclusive iso eds*/ +void ep_print_int_eds (ohci_t *ohci, char * str) { + int i, j; + __u32 * ed_p; + for (i= 0; i < 32; i++) { + j = 5; + ed_p = &(ohci->hcca->int_table [i]); + if (*ed_p == 0) + continue; + printf (__FILE__ ": %s branch int %2d(%2x):", str, i, i); + while (*ed_p != 0 && j--) { + ed_t *ed = (ed_t *)ohci_cpu_to_le32(ed_p); + printf (" ed: %4x;", ed->hwINFO); + ed_p = &ed->hwNextED; + } + printf ("\n"); + } +} + +static void ohci_dump_intr_mask (char *label, __u32 mask) +{ + dbg ("%s: 0x%08x%s%s%s%s%s%s%s%s%s", + label, + mask, + (mask & OHCI_INTR_MIE) ? " MIE" : "", + (mask & OHCI_INTR_OC) ? " OC" : "", + (mask & OHCI_INTR_RHSC) ? " RHSC" : "", + (mask & OHCI_INTR_FNO) ? " FNO" : "", + (mask & OHCI_INTR_UE) ? " UE" : "", + (mask & OHCI_INTR_RD) ? " RD" : "", + (mask & OHCI_INTR_SF) ? " SF" : "", + (mask & OHCI_INTR_WDH) ? " WDH" : "", + (mask & OHCI_INTR_SO) ? " SO" : "" + ); +} + +static void maybe_print_eds (char *label, __u32 value) +{ + ed_t *edp = (ed_t *)value; + + if (value) { + dbg ("%s %08x", label, value); + dbg ("%08x", edp->hwINFO); + dbg ("%08x", edp->hwTailP); + dbg ("%08x", edp->hwHeadP); + dbg ("%08x", edp->hwNextED); + } +} + +static char * hcfs2string (int state) +{ + switch (state) { + case OHCI_USB_RESET: return "reset"; + case OHCI_USB_RESUME: return "resume"; + case OHCI_USB_OPER: return "operational"; + case OHCI_USB_SUSPEND: return "suspend"; + } + return "?"; +} + +/* dump control and status registers */ +static void ohci_dump_status (ohci_t *controller) +{ + struct ohci_regs *regs = controller->regs; + __u32 temp; + + temp = readl (®s->revision) & 0xff; + if (temp != 0x10) + dbg ("spec %d.%d", (temp >> 4), (temp & 0x0f)); + + temp = readl (®s->control); + dbg ("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp, + (temp & OHCI_CTRL_RWE) ? " RWE" : "", + (temp & OHCI_CTRL_RWC) ? " RWC" : "", + (temp & OHCI_CTRL_IR) ? " IR" : "", + hcfs2string (temp & OHCI_CTRL_HCFS), + (temp & OHCI_CTRL_BLE) ? " BLE" : "", + (temp & OHCI_CTRL_CLE) ? " CLE" : "", + (temp & OHCI_CTRL_IE) ? " IE" : "", + (temp & OHCI_CTRL_PLE) ? " PLE" : "", + temp & OHCI_CTRL_CBSR + ); + + temp = readl (®s->cmdstatus); + dbg ("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp, + (temp & OHCI_SOC) >> 16, + (temp & OHCI_OCR) ? " OCR" : "", + (temp & OHCI_BLF) ? " BLF" : "", + (temp & OHCI_CLF) ? " CLF" : "", + (temp & OHCI_HCR) ? " HCR" : "" + ); + + ohci_dump_intr_mask ("intrstatus", readl (®s->intrstatus)); + ohci_dump_intr_mask ("intrenable", readl (®s->intrenable)); + + maybe_print_eds ("ed_periodcurrent", readl (®s->ed_periodcurrent)); + + maybe_print_eds ("ed_controlhead", readl (®s->ed_controlhead)); + maybe_print_eds ("ed_controlcurrent", readl (®s->ed_controlcurrent)); + + maybe_print_eds ("ed_bulkhead", readl (®s->ed_bulkhead)); + maybe_print_eds ("ed_bulkcurrent", readl (®s->ed_bulkcurrent)); + + maybe_print_eds ("donehead", readl (®s->donehead)); +} + +static void ohci_dump_roothub (ohci_t *controller, int verbose) +{ + __u32 temp, ndp, i; + + temp = roothub_a (controller); + ndp = (temp & RH_A_NDP); + + if (verbose) { + dbg ("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp, + ((temp & RH_A_POTPGT) >> 24) & 0xff, + (temp & RH_A_NOCP) ? " NOCP" : "", + (temp & RH_A_OCPM) ? " OCPM" : "", + (temp & RH_A_DT) ? " DT" : "", + (temp & RH_A_NPS) ? " NPS" : "", + (temp & RH_A_PSM) ? " PSM" : "", + ndp + ); + temp = roothub_b (controller); + dbg ("roothub.b: %08x PPCM=%04x DR=%04x", + temp, + (temp & RH_B_PPCM) >> 16, + (temp & RH_B_DR) + ); + temp = roothub_status (controller); + dbg ("roothub.status: %08x%s%s%s%s%s%s", + temp, + (temp & RH_HS_CRWE) ? " CRWE" : "", + (temp & RH_HS_OCIC) ? " OCIC" : "", + (temp & RH_HS_LPSC) ? " LPSC" : "", + (temp & RH_HS_DRWE) ? " DRWE" : "", + (temp & RH_HS_OCI) ? " OCI" : "", + (temp & RH_HS_LPS) ? " LPS" : "" + ); + } + + for (i = 0; i < ndp; i++) { + temp = roothub_portstatus (controller, i); + dbg ("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s", + i, + temp, + (temp & RH_PS_PRSC) ? " PRSC" : "", + (temp & RH_PS_OCIC) ? " OCIC" : "", + (temp & RH_PS_PSSC) ? " PSSC" : "", + (temp & RH_PS_PESC) ? " PESC" : "", + (temp & RH_PS_CSC) ? " CSC" : "", + + (temp & RH_PS_LSDA) ? " LSDA" : "", + (temp & RH_PS_PPS) ? " PPS" : "", + (temp & RH_PS_PRS) ? " PRS" : "", + (temp & RH_PS_POCI) ? " POCI" : "", + (temp & RH_PS_PSS) ? " PSS" : "", + + (temp & RH_PS_PES) ? " PES" : "", + (temp & RH_PS_CCS) ? " CCS" : "" + ); + } +} + +static void ohci_dump (ohci_t *controller, int verbose) +{ + dbg ("OHCI controller usb-%s state", controller->slot_name); + + /* dumps some of the state we know about */ + ohci_dump_status (controller); + if (verbose) + ep_print_int_eds (controller, "hcca"); + dbg ("hcca frame #%04x", controller->hcca->frame_no); + ohci_dump_roothub (controller, 1); +} + + +#endif /* DEBUG */ + +/*-------------------------------------------------------------------------* + * Interface functions (URB) + *-------------------------------------------------------------------------*/ + +/* get a transfer request */ + +int sohci_submit_job(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup, int interval) +{ + ohci_t *ohci; + ed_t * ed; + urb_priv_t *purb_priv; + int i, size = 0; + + ohci = &gohci; + + /* when controller's hung, permit only roothub cleanup attempts + * such as powering down ports */ + if (ohci->disabled) { + err("sohci_submit_job: EPIPE"); + return -1; + } + + /* if we have an unfinished URB from previous transaction let's + * fail and scream as quickly as possible so as not to corrupt + * further communication */ + if (!urb_finished) { + err("sohci_submit_job: URB NOT FINISHED"); + return -1; + } + /* we're about to begin a new transaction here so mark the URB unfinished */ + urb_finished = 0; + + /* every endpoint has a ed, locate and fill it */ + if (!(ed = ep_add_ed (dev, pipe))) { + err("sohci_submit_job: ENOMEM"); + return -1; + } + + /* for the private part of the URB we need the number of TDs (size) */ + switch (usb_pipetype (pipe)) { + case PIPE_BULK: /* one TD for every 4096 Byte */ + size = (transfer_len - 1) / 4096 + 1; + break; + case PIPE_CONTROL: /* 1 TD for setup, 1 for ACK and 1 for every 4096 B */ + size = (transfer_len == 0)? 2: + (transfer_len - 1) / 4096 + 3; + break; + } + + if (size >= (N_URB_TD - 1)) { + err("need %d TDs, only have %d", size, N_URB_TD); + return -1; + } + purb_priv = &urb_priv; + purb_priv->pipe = pipe; + + /* fill the private part of the URB */ + purb_priv->length = size; + purb_priv->ed = ed; + purb_priv->actual_length = 0; + + /* allocate the TDs */ + /* note that td[0] was allocated in ep_add_ed */ + for (i = 0; i < size; i++) { + purb_priv->td[i] = td_alloc (dev); + if (!purb_priv->td[i]) { + purb_priv->length = i; + urb_free_priv (purb_priv); + err("sohci_submit_job: ENOMEM"); + return -1; + } + } + + if (ed->state == ED_NEW || (ed->state & ED_DEL)) { + urb_free_priv (purb_priv); + err("sohci_submit_job: EINVAL"); + return -1; + } + + /* link the ed into a chain if is not already */ + if (ed->state != ED_OPER) + ep_link (ohci, ed); + + /* fill the TDs and link it to the ed */ + td_submit_job(dev, pipe, buffer, transfer_len, setup, purb_priv, interval); + + return 0; +} + +/*-------------------------------------------------------------------------*/ + +#ifdef DEBUG +/* tell us the current USB frame number */ + +static int sohci_get_current_frame_number (struct usb_device *usb_dev) +{ + ohci_t *ohci = &gohci; + + return ohci_cpu_to_le16 (ohci->hcca->frame_no); +} +#endif + +/*-------------------------------------------------------------------------* + * ED handling functions + *-------------------------------------------------------------------------*/ + +/* link an ed into one of the HC chains */ + +static int ep_link (ohci_t *ohci, ed_t *edi) +{ + volatile ed_t *ed = edi; + + ed->state = ED_OPER; + + switch (ed->type) { + case PIPE_CONTROL: + ed->hwNextED = 0; + if (ohci->ed_controltail == NULL) { + writel (ed, &ohci->regs->ed_controlhead); + } else { + ohci->ed_controltail->hwNextED = ohci_cpu_to_le32 ((unsigned long)ed); + } + ed->ed_prev = ohci->ed_controltail; + if (!ohci->ed_controltail && !ohci->ed_rm_list[0] && + !ohci->ed_rm_list[1] && !ohci->sleeping) { + ohci->hc_control |= OHCI_CTRL_CLE; + writel (ohci->hc_control, &ohci->regs->control); + } + ohci->ed_controltail = edi; + break; + + case PIPE_BULK: + ed->hwNextED = 0; + if (ohci->ed_bulktail == NULL) { + writel (ed, &ohci->regs->ed_bulkhead); + } else { + ohci->ed_bulktail->hwNextED = ohci_cpu_to_le32 ((unsigned long)ed); + } + ed->ed_prev = ohci->ed_bulktail; + if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] && + !ohci->ed_rm_list[1] && !ohci->sleeping) { + ohci->hc_control |= OHCI_CTRL_BLE; + writel (ohci->hc_control, &ohci->regs->control); + } + ohci->ed_bulktail = edi; + break; + } + return 0; +} + +/*-------------------------------------------------------------------------*/ + +/* unlink an ed from one of the HC chains. + * just the link to the ed is unlinked. + * the link from the ed still points to another operational ed or 0 + * so the HC can eventually finish the processing of the unlinked ed */ + +static int ep_unlink (ohci_t *ohci, ed_t *edi) +{ + volatile ed_t *ed = edi; + + ed->hwINFO |= ohci_cpu_to_le32 (OHCI_ED_SKIP); + + switch (ed->type) { + case PIPE_CONTROL: + if (ed->ed_prev == NULL) { + if (!ed->hwNextED) { + ohci->hc_control &= ~OHCI_CTRL_CLE; + writel (ohci->hc_control, &ohci->regs->control); + } + writel (ohci_cpu_to_le32 (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_controlhead); + } else { + ed->ed_prev->hwNextED = ed->hwNextED; + } + if (ohci->ed_controltail == ed) { + ohci->ed_controltail = ed->ed_prev; + } else { + ((ed_t *)ohci_cpu_to_le32 (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; + } + break; + + case PIPE_BULK: + if (ed->ed_prev == NULL) { + if (!ed->hwNextED) { + ohci->hc_control &= ~OHCI_CTRL_BLE; + writel (ohci->hc_control, &ohci->regs->control); + } + writel (ohci_cpu_to_le32 (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_bulkhead); + } else { + ed->ed_prev->hwNextED = ed->hwNextED; + } + if (ohci->ed_bulktail == ed) { + ohci->ed_bulktail = ed->ed_prev; + } else { + ((ed_t *)ohci_cpu_to_le32 (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; + } + break; + } + ed->state = ED_UNLINK; + return 0; +} + + +/*-------------------------------------------------------------------------*/ + +/* add/reinit an endpoint; this should be done once at the usb_set_configuration command, + * but the USB stack is a little bit stateless so we do it at every transaction + * if the state of the ed is ED_NEW then a dummy td is added and the state is changed to ED_UNLINK + * in all other cases the state is left unchanged + * the ed info fields are setted anyway even though most of them should not change */ + +static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe) +{ + td_t *td; + ed_t *ed_ret; + volatile ed_t *ed; + + ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint (pipe) << 1) | + (usb_pipecontrol (pipe)? 0: usb_pipeout (pipe))]; + + if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) { + err("ep_add_ed: pending delete"); + /* pending delete request */ + return NULL; + } + + if (ed->state == ED_NEW) { + ed->hwINFO = ohci_cpu_to_le32 (OHCI_ED_SKIP); /* skip ed */ + /* dummy td; end of td list for ed */ + td = td_alloc (usb_dev); + ed->hwTailP = ohci_cpu_to_le32 ((unsigned long)td); + ed->hwHeadP = ed->hwTailP; + ed->state = ED_UNLINK; + ed->type = usb_pipetype (pipe); + ohci_dev.ed_cnt++; + } + + ed->hwINFO = ohci_cpu_to_le32 (usb_pipedevice (pipe) + | usb_pipeendpoint (pipe) << 7 + | (usb_pipeisoc (pipe)? 0x8000: 0) + | (usb_pipecontrol (pipe)? 0: (usb_pipeout (pipe)? 0x800: 0x1000)) + | usb_pipeslow (pipe) << 13 + | usb_maxpacket (usb_dev, pipe) << 16); + + return ed_ret; +} + +/*-------------------------------------------------------------------------* + * TD handling functions + *-------------------------------------------------------------------------*/ + +/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */ + +static void td_fill (ohci_t *ohci, unsigned int info, + void *data, int len, + struct usb_device *dev, int index, urb_priv_t *urb_priv) +{ + volatile td_t *td, *td_pt; +#ifdef OHCI_FILL_TRACE + int i; +#endif + + if (index > urb_priv->length) { + err("index > length"); + return; + } + /* use this td as the next dummy */ + td_pt = urb_priv->td [index]; + td_pt->hwNextTD = 0; + + /* fill the old dummy TD */ + td = urb_priv->td [index] = (td_t *)(ohci_cpu_to_le32 (urb_priv->ed->hwTailP) & ~0xf); + + td->ed = urb_priv->ed; + td->next_dl_td = NULL; + td->index = index; + td->data = (__u32)data; +#ifdef OHCI_FILL_TRACE + if (usb_pipebulk(urb_priv->pipe) && usb_pipeout(urb_priv->pipe)) { + for (i = 0; i < len; i++) + printf("td->data[%d] %#2x ",i, ((unsigned char *)td->data)[i]); + printf("\n"); + } +#endif + if (!len) + data = 0; + + td->hwINFO = ohci_cpu_to_le32 (info); + td->hwCBP = ohci_cpu_to_le32 ((unsigned long)data); + if (data) + td->hwBE = ohci_cpu_to_le32 ((unsigned long)(data + len - 1)); + else + td->hwBE = 0; + td->hwNextTD = ohci_cpu_to_le32 ((unsigned long)td_pt); + + /* append to queue */ + td->ed->hwTailP = td->hwNextTD; +} + +/*-------------------------------------------------------------------------*/ + +/* prepare all TDs of a transfer */ +static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup, urb_priv_t *urb, int interval) +{ + ohci_t *ohci = &gohci; + int data_len = transfer_len; + void *data; + int cnt = 0; + __u32 info = 0; + unsigned int toggle = 0; + + /* OHCI handles the DATA-toggles itself, we just use the USB-toggle bits for reseting */ + if(usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) { + toggle = TD_T_TOGGLE; + } else { + toggle = TD_T_DATA0; + usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 1); + } + urb->td_cnt = 0; + if (data_len) + data = buffer; + else + data = 0; + + switch (usb_pipetype (pipe)) { + case PIPE_BULK: + info = usb_pipeout (pipe)? + TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ; + while(data_len > 4096) { + td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, 4096, dev, cnt, urb); + data += 4096; data_len -= 4096; cnt++; + } + info = usb_pipeout (pipe)? + TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ; + td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, data_len, dev, cnt, urb); + cnt++; + + if (!ohci->sleeping) + writel (OHCI_BLF, &ohci->regs->cmdstatus); /* start bulk list */ + break; + + case PIPE_CONTROL: + info = TD_CC | TD_DP_SETUP | TD_T_DATA0; + td_fill (ohci, info, setup, 8, dev, cnt++, urb); + if (data_len > 0) { + info = usb_pipeout (pipe)? + TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : TD_CC | TD_R | TD_DP_IN | TD_T_DATA1; + /* NOTE: mishandles transfers >8K, some >4K */ + td_fill (ohci, info, data, data_len, dev, cnt++, urb); + } + info = usb_pipeout (pipe)? + TD_CC | TD_DP_IN | TD_T_DATA1: TD_CC | TD_DP_OUT | TD_T_DATA1; + td_fill (ohci, info, data, 0, dev, cnt++, urb); + if (!ohci->sleeping) + writel (OHCI_CLF, &ohci->regs->cmdstatus); /* start Control list */ + break; + } + if (urb->length != cnt) + dbg("TD LENGTH %d != CNT %d", urb->length, cnt); +} + +/*-------------------------------------------------------------------------* + * Done List handling functions + *-------------------------------------------------------------------------*/ + + +/* calculate the transfer length and update the urb */ + +static void dl_transfer_length(td_t * td) +{ + __u32 tdINFO, tdBE, tdCBP; + urb_priv_t *lurb_priv = &urb_priv; + + tdINFO = ohci_cpu_to_le32 (td->hwINFO); + tdBE = ohci_cpu_to_le32 (td->hwBE); + tdCBP = ohci_cpu_to_le32 (td->hwCBP); + + + if (!(usb_pipecontrol(lurb_priv->pipe) && + ((td->index == 0) || (td->index == lurb_priv->length - 1)))) { + if (tdBE != 0) { + if (td->hwCBP == 0) + lurb_priv->actual_length += tdBE - td->data + 1; + else + lurb_priv->actual_length += tdCBP - td->data; + } + } +} + +/*-------------------------------------------------------------------------*/ + +/* replies to the request have to be on a FIFO basis so + * we reverse the reversed done-list */ + +static td_t * dl_reverse_done_list (ohci_t *ohci) +{ + __u32 td_list_hc; + td_t *td_rev = NULL; + td_t *td_list = NULL; + urb_priv_t *lurb_priv = NULL; + + td_list_hc = ohci_cpu_to_le32 (ohci->hcca->done_head) & 0xfffffff0; + ohci->hcca->done_head = 0; + + while (td_list_hc) { + td_list = (td_t *)td_list_hc; + + if (TD_CC_GET (ohci_cpu_to_le32 (td_list->hwINFO))) { + lurb_priv = &urb_priv; + dbg(" USB-error/status: %x : %p", + TD_CC_GET (ohci_cpu_to_le32 (td_list->hwINFO)), td_list); + if (td_list->ed->hwHeadP & ohci_cpu_to_le32 (0x1)) { + if (lurb_priv && ((td_list->index + 1) < lurb_priv->length)) { + td_list->ed->hwHeadP = + (lurb_priv->td[lurb_priv->length - 1]->hwNextTD & ohci_cpu_to_le32 (0xfffffff0)) | + (td_list->ed->hwHeadP & ohci_cpu_to_le32 (0x2)); + lurb_priv->td_cnt += lurb_priv->length - td_list->index - 1; + } else + td_list->ed->hwHeadP &= ohci_cpu_to_le32 (0xfffffff2); + } +#ifdef CONFIG_MPC5200 + td_list->hwNextTD = 0; +#endif + } + + td_list->next_dl_td = td_rev; + td_rev = td_list; + td_list_hc = ohci_cpu_to_le32 (td_list->hwNextTD) & 0xfffffff0; + } + return td_list; +} + +/*-------------------------------------------------------------------------*/ + +/* td done list */ +static int dl_done_list (ohci_t *ohci, td_t *td_list) +{ + td_t *td_list_next = NULL; + ed_t *ed; + int cc = 0; + int stat = 0; + /* urb_t *urb; */ + urb_priv_t *lurb_priv; + __u32 tdINFO, edHeadP, edTailP; + + while (td_list) { + td_list_next = td_list->next_dl_td; + + lurb_priv = &urb_priv; + tdINFO = ohci_cpu_to_le32 (td_list->hwINFO); + + ed = td_list->ed; + + dl_transfer_length(td_list); + + /* error code of transfer */ + cc = TD_CC_GET (tdINFO); + if (++(lurb_priv->td_cnt) == lurb_priv->length) { + if ((ed->state & (ED_OPER | ED_UNLINK)) + && (lurb_priv->state != URB_DEL)) { + dbg("ConditionCode %#x", cc); + stat = cc_to_error[cc]; + urb_finished = 1; + } + } + + if (ed->state != ED_NEW) { + edHeadP = ohci_cpu_to_le32 (ed->hwHeadP) & 0xfffffff0; + edTailP = ohci_cpu_to_le32 (ed->hwTailP); + + /* unlink eds if they are not busy */ + if ((edHeadP == edTailP) && (ed->state == ED_OPER)) + ep_unlink (ohci, ed); + } + + td_list = td_list_next; + } + return stat; +} + +/*-------------------------------------------------------------------------* + * Virtual Root Hub + *-------------------------------------------------------------------------*/ + +/* Device descriptor */ +static __u8 root_hub_dev_des[] = +{ + 0x12, /* __u8 bLength; */ + 0x01, /* __u8 bDescriptorType; Device */ + 0x10, /* __u16 bcdUSB; v1.1 */ + 0x01, + 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */ + 0x00, /* __u8 bDeviceSubClass; */ + 0x00, /* __u8 bDeviceProtocol; */ + 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */ + 0x00, /* __u16 idVendor; */ + 0x00, + 0x00, /* __u16 idProduct; */ + 0x00, + 0x00, /* __u16 bcdDevice; */ + 0x00, + 0x00, /* __u8 iManufacturer; */ + 0x01, /* __u8 iProduct; */ + 0x00, /* __u8 iSerialNumber; */ + 0x01 /* __u8 bNumConfigurations; */ +}; + + +/* Configuration descriptor */ +static __u8 root_hub_config_des[] = +{ + 0x09, /* __u8 bLength; */ + 0x02, /* __u8 bDescriptorType; Configuration */ + 0x19, /* __u16 wTotalLength; */ + 0x00, + 0x01, /* __u8 bNumInterfaces; */ + 0x01, /* __u8 bConfigurationValue; */ + 0x00, /* __u8 iConfiguration; */ + 0x40, /* __u8 bmAttributes; + Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */ + 0x00, /* __u8 MaxPower; */ + + /* interface */ + 0x09, /* __u8 if_bLength; */ + 0x04, /* __u8 if_bDescriptorType; Interface */ + 0x00, /* __u8 if_bInterfaceNumber; */ + 0x00, /* __u8 if_bAlternateSetting; */ + 0x01, /* __u8 if_bNumEndpoints; */ + 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */ + 0x00, /* __u8 if_bInterfaceSubClass; */ + 0x00, /* __u8 if_bInterfaceProtocol; */ + 0x00, /* __u8 if_iInterface; */ + + /* endpoint */ + 0x07, /* __u8 ep_bLength; */ + 0x05, /* __u8 ep_bDescriptorType; Endpoint */ + 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */ + 0x03, /* __u8 ep_bmAttributes; Interrupt */ + 0x02, /* __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */ + 0x00, + 0xff /* __u8 ep_bInterval; 255 ms */ +}; + +static unsigned char root_hub_str_index0[] = +{ + 0x04, /* __u8 bLength; */ + 0x03, /* __u8 bDescriptorType; String-descriptor */ + 0x09, /* __u8 lang ID */ + 0x04, /* __u8 lang ID */ +}; + +static unsigned char root_hub_str_index1[] = +{ + 28, /* __u8 bLength; */ + 0x03, /* __u8 bDescriptorType; String-descriptor */ + 'O', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'H', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'C', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'I', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + ' ', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'R', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'o', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'o', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 't', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + ' ', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'H', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'u', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'b', /* __u8 Unicode */ + 0, /* __u8 Unicode */ +}; + +/* Hub class-specific descriptor is constructed dynamically */ + + +/*-------------------------------------------------------------------------*/ + +#define OK(x) len = (x); break +#ifdef DEBUG +#define WR_RH_STAT(x) {info("WR:status %#8x", (x));writel((x), &gohci.regs->roothub.status);} +#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, (x));writel((x), &gohci.regs->roothub.portstatus[wIndex-1]);} +#else +#define WR_RH_STAT(x) writel((x), &gohci.regs->roothub.status) +#define WR_RH_PORTSTAT(x) writel((x), &gohci.regs->roothub.portstatus[wIndex-1]) +#endif +#define RD_RH_STAT roothub_status(&gohci) +#define RD_RH_PORTSTAT roothub_portstatus(&gohci,wIndex-1) + +/* request to virtual root hub */ + +int rh_check_port_status(ohci_t *controller) +{ + __u32 temp, ndp, i; + int res; + + res = -1; + temp = roothub_a (controller); + ndp = (temp & RH_A_NDP); + for (i = 0; i < ndp; i++) { + temp = roothub_portstatus (controller, i); + /* check for a device disconnect */ + if (((temp & (RH_PS_PESC | RH_PS_CSC)) == + (RH_PS_PESC | RH_PS_CSC)) && + ((temp & RH_PS_CCS) == 0)) { + res = i; + break; + } + } + return res; +} + +static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe, + void *buffer, int transfer_len, struct devrequest *cmd) +{ + void * data = buffer; + int leni = transfer_len; + int len = 0; + int stat = 0; + __u32 datab[4]; + __u8 *data_buf = (__u8 *)datab; + __u16 bmRType_bReq; + __u16 wValue; + __u16 wIndex; + __u16 wLength; + +#ifdef DEBUG +urb_priv.actual_length = 0; +pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe)); +#endif + if (usb_pipeint(pipe)) { + info("Root-Hub submit IRQ: NOT implemented"); + return 0; + } + + bmRType_bReq = cmd->requesttype | (cmd->request << 8); + wValue = m16_swap (cmd->value); + wIndex = m16_swap (cmd->index); + wLength = m16_swap (cmd->length); + + info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x", + dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength); + + switch (bmRType_bReq) { + /* Request Destination: + without flags: Device, + RH_INTERFACE: interface, + RH_ENDPOINT: endpoint, + RH_CLASS means HUB here, + RH_OTHER | RH_CLASS almost ever means HUB_PORT here + */ + + case RH_GET_STATUS: + *(__u16 *) data_buf = m16_swap (1); OK (2); + case RH_GET_STATUS | RH_INTERFACE: + *(__u16 *) data_buf = m16_swap (0); OK (2); + case RH_GET_STATUS | RH_ENDPOINT: + *(__u16 *) data_buf = m16_swap (0); OK (2); + case RH_GET_STATUS | RH_CLASS: + *(__u32 *) data_buf = m32_swap ( + RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE)); + OK (4); + case RH_GET_STATUS | RH_OTHER | RH_CLASS: + *(__u32 *) data_buf = m32_swap (RD_RH_PORTSTAT); OK (4); + + case RH_CLEAR_FEATURE | RH_ENDPOINT: + switch (wValue) { + case (RH_ENDPOINT_STALL): OK (0); + } + break; + + case RH_CLEAR_FEATURE | RH_CLASS: + switch (wValue) { + case RH_C_HUB_LOCAL_POWER: + OK(0); + case (RH_C_HUB_OVER_CURRENT): + WR_RH_STAT(RH_HS_OCIC); OK (0); + } + break; + + case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: + switch (wValue) { + case (RH_PORT_ENABLE): + WR_RH_PORTSTAT (RH_PS_CCS ); OK (0); + case (RH_PORT_SUSPEND): + WR_RH_PORTSTAT (RH_PS_POCI); OK (0); + case (RH_PORT_POWER): + WR_RH_PORTSTAT (RH_PS_LSDA); OK (0); + case (RH_C_PORT_CONNECTION): + WR_RH_PORTSTAT (RH_PS_CSC ); OK (0); + case (RH_C_PORT_ENABLE): + WR_RH_PORTSTAT (RH_PS_PESC); OK (0); + case (RH_C_PORT_SUSPEND): + WR_RH_PORTSTAT (RH_PS_PSSC); OK (0); + case (RH_C_PORT_OVER_CURRENT): + WR_RH_PORTSTAT (RH_PS_OCIC); OK (0); + case (RH_C_PORT_RESET): + WR_RH_PORTSTAT (RH_PS_PRSC); OK (0); + } + break; + + case RH_SET_FEATURE | RH_OTHER | RH_CLASS: + switch (wValue) { + case (RH_PORT_SUSPEND): + WR_RH_PORTSTAT (RH_PS_PSS ); OK (0); + case (RH_PORT_RESET): /* BUG IN HUP CODE *********/ + if (RD_RH_PORTSTAT & RH_PS_CCS) + WR_RH_PORTSTAT (RH_PS_PRS); + OK (0); + case (RH_PORT_POWER): + WR_RH_PORTSTAT (RH_PS_PPS ); OK (0); + case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/ + if (RD_RH_PORTSTAT & RH_PS_CCS) + WR_RH_PORTSTAT (RH_PS_PES ); + OK (0); + } + break; + + case RH_SET_ADDRESS: gohci.rh.devnum = wValue; OK(0); + + case RH_GET_DESCRIPTOR: + switch ((wValue & 0xff00) >> 8) { + case (0x01): /* device descriptor */ + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_dev_des), + wLength)); + data_buf = root_hub_dev_des; OK(len); + case (0x02): /* configuration descriptor */ + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_config_des), + wLength)); + data_buf = root_hub_config_des; OK(len); + case (0x03): /* string descriptors */ + if(wValue==0x0300) { + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_str_index0), + wLength)); + data_buf = root_hub_str_index0; + OK(len); + } + if(wValue==0x0301) { + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_str_index1), + wLength)); + data_buf = root_hub_str_index1; + OK(len); + } + default: + stat = USB_ST_STALLED; + } + break; + + case RH_GET_DESCRIPTOR | RH_CLASS: + { + __u32 temp = roothub_a (&gohci); + + data_buf [0] = 9; /* min length; */ + data_buf [1] = 0x29; + data_buf [2] = temp & RH_A_NDP; + data_buf [3] = 0; + if (temp & RH_A_PSM) /* per-port power switching? */ + data_buf [3] |= 0x1; + if (temp & RH_A_NOCP) /* no overcurrent reporting? */ + data_buf [3] |= 0x10; + else if (temp & RH_A_OCPM) /* per-port overcurrent reporting? */ + data_buf [3] |= 0x8; + + /* corresponds to data_buf[4-7] */ + datab [1] = 0; + data_buf [5] = (temp & RH_A_POTPGT) >> 24; + temp = roothub_b (&gohci); + data_buf [7] = temp & RH_B_DR; + if (data_buf [2] < 7) { + data_buf [8] = 0xff; + } else { + data_buf [0] += 2; + data_buf [8] = (temp & RH_B_DR) >> 8; + data_buf [10] = data_buf [9] = 0xff; + } + + len = min_t(unsigned int, leni, + min_t(unsigned int, data_buf [0], wLength)); + OK (len); + } + + case RH_GET_CONFIGURATION: *(__u8 *) data_buf = 0x01; OK (1); + + case RH_SET_CONFIGURATION: WR_RH_STAT (0x10000); OK (0); + + default: + dbg ("unsupported root hub command"); + stat = USB_ST_STALLED; + } + +#ifdef DEBUG + ohci_dump_roothub (&gohci, 1); +#endif + + len = min_t(int, len, leni); + if (data != data_buf) + memcpy (data, data_buf, len); + dev->act_len = len; + dev->status = stat; + +#ifdef DEBUG + if (transfer_len) + urb_priv.actual_length = transfer_len; + pkt_print(dev, pipe, buffer, transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/); +#endif + + return stat; +} + +/*-------------------------------------------------------------------------*/ + +/* common code for handling submit messages - used for all but root hub */ +/* accesses. */ +int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup, int interval) +{ + int stat = 0; + int maxsize = usb_maxpacket(dev, pipe); + int timeout; + + /* device pulled? Shortcut the action. */ + if (devgone == dev) { + dev->status = USB_ST_CRC_ERR; + return 0; + } + +#ifdef DEBUG + urb_priv.actual_length = 0; + pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe)); +#endif + if (!maxsize) { + err("submit_common_message: pipesize for pipe %lx is zero", + pipe); + return -1; + } + + if (sohci_submit_job(dev, pipe, buffer, transfer_len, setup, interval) < 0) { + err("sohci_submit_job failed"); + return -1; + } + + /* allow more time for a BULK device to react - some are slow */ +#define BULK_TO 5000 /* timeout in milliseconds */ + if (usb_pipebulk(pipe)) + timeout = BULK_TO; + else + timeout = 100; + + /* wait for it to complete */ + for (;;) { + /* check whether the controller is done */ + stat = hc_interrupt(); + if (stat < 0) { + stat = USB_ST_CRC_ERR; + break; + } + + /* NOTE: since we are not interrupt driven in U-Boot and always + * handle only one URB at a time, we cannot assume the + * transaction finished on the first successful return from + * hc_interrupt().. unless the flag for current URB is set, + * meaning that all TD's to/from device got actually + * transferred and processed. If the current URB is not + * finished we need to re-iterate this loop so as + * hc_interrupt() gets called again as there needs to be some + * more TD's to process still */ + if ((stat >= 0) && (stat != 0xff) && (urb_finished)) { + /* 0xff is returned for an SF-interrupt */ + break; + } + + if (--timeout) { + wait_ms(1); + if (!urb_finished) + dbg("\%"); + + } else { + err("CTL:TIMEOUT "); + dbg("submit_common_msg: TO status %x\n", stat); + stat = USB_ST_CRC_ERR; + urb_finished = 1; + break; + } + } +#if 0 + /* we got an Root Hub Status Change interrupt */ + if (got_rhsc) { +#ifdef DEBUG + ohci_dump_roothub (&gohci, 1); +#endif + got_rhsc = 0; + /* abuse timeout */ + timeout = rh_check_port_status(&gohci); + if (timeout >= 0) { +#if 0 /* this does nothing useful, but leave it here in case that changes */ + /* the called routine adds 1 to the passed value */ + usb_hub_port_connect_change(gohci.rh.dev, timeout - 1); +#endif + /* + * XXX + * This is potentially dangerous because it assumes + * that only one device is ever plugged in! + */ + devgone = dev; + } + } +#endif + + dev->status = stat; + dev->act_len = transfer_len; + +#ifdef DEBUG + pkt_print(dev, pipe, buffer, transfer_len, setup, "RET(ctlr)", usb_pipein(pipe)); +#endif + + /* free TDs in urb_priv */ + urb_free_priv (&urb_priv); + return 0; +} + +/* submit routines called from usb.c */ +int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len) +{ + info("submit_bulk_msg"); + return submit_common_msg(dev, pipe, buffer, transfer_len, NULL, 0); +} + +int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup) +{ + int maxsize = usb_maxpacket(dev, pipe); + + info("submit_control_msg"); +#ifdef DEBUG + urb_priv.actual_length = 0; + pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe)); +#endif + if (!maxsize) { + err("submit_control_message: pipesize for pipe %lx is zero", + pipe); + return -1; + } + if (((pipe >> 8) & 0x7f) == gohci.rh.devnum) { + gohci.rh.dev = dev; + /* root hub - redirect */ + return ohci_submit_rh_msg(dev, pipe, buffer, transfer_len, + setup); + } + + return submit_common_msg(dev, pipe, buffer, transfer_len, setup, 0); +} + +int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, int interval) +{ + info("submit_int_msg"); + return -1; +} + +/*-------------------------------------------------------------------------* + * HC functions + *-------------------------------------------------------------------------*/ + +/* reset the HC and BUS */ + +static int hc_reset (ohci_t *ohci) +{ + int timeout = 30; + int smm_timeout = 50; /* 0,5 sec */ + + if (readl (&ohci->regs->control) & OHCI_CTRL_IR) { /* SMM owns the HC */ + writel (OHCI_OCR, &ohci->regs->cmdstatus); /* request ownership */ + info("USB HC TakeOver from SMM"); + while (readl (&ohci->regs->control) & OHCI_CTRL_IR) { + wait_ms (10); + if (--smm_timeout == 0) { + err("USB HC TakeOver failed!"); + return -1; + } + } + } + + /* Disable HC interrupts */ + writel (OHCI_INTR_MIE, &ohci->regs->intrdisable); + + dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;", + ohci->slot_name, + readl (&ohci->regs->control)); + + /* Reset USB (needed by some controllers) */ + ohci->hc_control = 0; + writel (ohci->hc_control, &ohci->regs->control); + + /* HC Reset requires max 10 us delay */ + writel (OHCI_HCR, &ohci->regs->cmdstatus); + while ((readl (&ohci->regs->cmdstatus) & OHCI_HCR) != 0) { + if (--timeout == 0) { + err("USB HC reset timed out!"); + return -1; + } + udelay (1); + } + return 0; +} + +/*-------------------------------------------------------------------------*/ + +/* Start an OHCI controller, set the BUS operational + * enable interrupts + * connect the virtual root hub */ + +static int hc_start (ohci_t * ohci) +{ + __u32 mask; + unsigned int fminterval; + + ohci->disabled = 1; + + /* Tell the controller where the control and bulk lists are + * The lists are empty now. */ + + writel (0, &ohci->regs->ed_controlhead); + writel (0, &ohci->regs->ed_bulkhead); + + writel ((__u32)ohci->hcca, &ohci->regs->hcca); /* a reset clears this */ + + fminterval = 0x2edf; + writel ((fminterval * 9) / 10, &ohci->regs->periodicstart); + fminterval |= ((((fminterval - 210) * 6) / 7) << 16); + writel (fminterval, &ohci->regs->fminterval); + writel (0x628, &ohci->regs->lsthresh); + + /* start controller operations */ + ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER; + ohci->disabled = 0; + writel (ohci->hc_control, &ohci->regs->control); + + /* disable all interrupts */ + mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD | + OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC | + OHCI_INTR_OC | OHCI_INTR_MIE); + writel (mask, &ohci->regs->intrdisable); + /* clear all interrupts */ + mask &= ~OHCI_INTR_MIE; + writel (mask, &ohci->regs->intrstatus); + /* Choose the interrupts we care about now - but w/o MIE */ + mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO; + writel (mask, &ohci->regs->intrenable); + +#ifdef OHCI_USE_NPS + /* required for AMD-756 and some Mac platforms */ + writel ((roothub_a (ohci) | RH_A_NPS) & ~RH_A_PSM, + &ohci->regs->roothub.a); + writel (RH_HS_LPSC, &ohci->regs->roothub.status); +#endif /* OHCI_USE_NPS */ + +#define mdelay(n) ({unsigned long msec=(n); while (msec--) udelay(1000);}) + /* POTPGT delay is bits 24-31, in 2 ms units. */ + mdelay ((roothub_a (ohci) >> 23) & 0x1fe); + + /* connect the virtual root hub */ + ohci->rh.devnum = 0; + + return 0; +} + +/*-------------------------------------------------------------------------*/ + +/* an interrupt happens */ + +static int +hc_interrupt (void) +{ + ohci_t *ohci = &gohci; + struct ohci_regs *regs = ohci->regs; + int ints; + int stat = -1; + + if ((ohci->hcca->done_head != 0) && + !(ohci_cpu_to_le32(ohci->hcca->done_head) & 0x01)) { + + ints = OHCI_INTR_WDH; + + } else if ((ints = readl (®s->intrstatus)) == ~(u32)0) { + ohci->disabled++; + err ("%s device removed!", ohci->slot_name); + return -1; + + } else if ((ints &= readl (®s->intrenable)) == 0) { + dbg("hc_interrupt: returning..\n"); + return 0xff; + } + + /* dbg("Interrupt: %x frame: %x", ints, le16_to_cpu (ohci->hcca->frame_no)); */ + + if (ints & OHCI_INTR_RHSC) { + got_rhsc = 1; + stat = 0xff; + } + + if (ints & OHCI_INTR_UE) { + ohci->disabled++; + err ("OHCI Unrecoverable Error, controller usb-%s disabled", + ohci->slot_name); + /* e.g. due to PCI Master/Target Abort */ + +#ifdef DEBUG + ohci_dump (ohci, 1); +#endif + /* FIXME: be optimistic, hope that bug won't repeat often. */ + /* Make some non-interrupt context restart the controller. */ + /* Count and limit the retries though; either hardware or */ + /* software errors can go forever... */ + hc_reset (ohci); + return -1; + } + + if (ints & OHCI_INTR_WDH) { + writel (OHCI_INTR_WDH, ®s->intrdisable); + stat = dl_done_list (&gohci, dl_reverse_done_list (&gohci)); + writel (OHCI_INTR_WDH, ®s->intrenable); + } + + if (ints & OHCI_INTR_SO) { + dbg("USB Schedule overrun\n"); + writel (OHCI_INTR_SO, ®s->intrenable); + stat = -1; + } + + /* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */ + if (ints & OHCI_INTR_SF) { + unsigned int frame = ohci_cpu_to_le16 (ohci->hcca->frame_no) & 1; + wait_ms(1); + writel (OHCI_INTR_SF, ®s->intrdisable); + if (ohci->ed_rm_list[frame] != NULL) + writel (OHCI_INTR_SF, ®s->intrenable); + stat = 0xff; + } + + writel (ints, ®s->intrstatus); + return stat; +} + +/*-------------------------------------------------------------------------*/ + +/*-------------------------------------------------------------------------*/ + +/* De-allocate all resources.. */ + +static void hc_release_ohci (ohci_t *ohci) +{ + dbg ("USB HC release ohci usb-%s", ohci->slot_name); + + if (!ohci->disabled) + hc_reset (ohci); +} + +/*-------------------------------------------------------------------------*/ + +/* + * low level initalisation routine, called from usb.c + */ +static char ohci_inited = 0; + +int usb_lowlevel_init(void) +{ + memset (&gohci, 0, sizeof (ohci_t)); + memset (&urb_priv, 0, sizeof (urb_priv_t)); + + /* align the storage */ + if ((__u32)&ghcca[0] & 0xff) { + err("HCCA not aligned!!"); + return -1; + } + phcca = &ghcca[0]; + info("aligned ghcca %p", phcca); + memset(&ohci_dev, 0, sizeof(struct ohci_device)); + if ((__u32)&ohci_dev.ed[0] & 0x7) { + err("EDs not aligned!!"); + return -1; + } + memset(gtd, 0, sizeof(td_t) * (NUM_TD + 1)); + if ((__u32)gtd & 0x7) { + err("TDs not aligned!!"); + return -1; + } + ptd = gtd; + gohci.hcca = phcca; + memset (phcca, 0, sizeof (struct ohci_hcca)); + + gohci.disabled = 1; + gohci.sleeping = 0; + gohci.irq = -1; +#if defined(CONFIG_440EP) + gohci.regs = (struct ohci_regs *)(CONFIG_SYS_PERIPHERAL_BASE | 0x1000); +#elif defined(CONFIG_440EPX) || defined(CONFIG_SYS_USB_HOST) + gohci.regs = (struct ohci_regs *)(CONFIG_SYS_USB_HOST); +#endif + + gohci.flags = 0; + gohci.slot_name = "ppc440"; + + if (hc_reset (&gohci) < 0) { + hc_release_ohci (&gohci); + return -1; + } + + if (hc_start (&gohci) < 0) { + err ("can't start usb-%s", gohci.slot_name); + hc_release_ohci (&gohci); + return -1; + } + +#ifdef DEBUG + ohci_dump (&gohci, 1); +#endif + ohci_inited = 1; + urb_finished = 1; + +#if defined(CONFIG_440EP) || defined(CONFIG_440EPX) + /* init the device driver */ + usb_dev_init(); +#endif + + return 0; +} + +int usb_lowlevel_stop(void) +{ + /* this gets called really early - before the controller has */ + /* even been initialized! */ + if (!ohci_inited) + return 0; + /* TODO release any interrupts, etc. */ + /* call hc_release_ohci() here ? */ + hc_reset (&gohci); + return 0; +} + +#endif /* CONFIG_USB_OHCI */ diff --git a/arch/ppc/cpu/ppc4xx/usb_ohci.h b/arch/ppc/cpu/ppc4xx/usb_ohci.h new file mode 100644 index 0000000..2c3dc4f --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/usb_ohci.h @@ -0,0 +1,410 @@ +/* + * URB OHCI HCD (Host Controller Driver) for USB. + * + * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> + * (C) Copyright 2000-2001 David Brownell <dbrownell@users.sourceforge.net> + * + * usb-ohci.h + */ + +static int cc_to_error[16] = { + +/* mapping of the OHCI CC status to error codes */ + /* No Error */ 0, + /* CRC Error */ USB_ST_CRC_ERR, + /* Bit Stuff */ USB_ST_BIT_ERR, + /* Data Togg */ USB_ST_CRC_ERR, + /* Stall */ USB_ST_STALLED, + /* DevNotResp */ -1, + /* PIDCheck */ USB_ST_BIT_ERR, + /* UnExpPID */ USB_ST_BIT_ERR, + /* DataOver */ USB_ST_BUF_ERR, + /* DataUnder */ USB_ST_BUF_ERR, + /* reservd */ -1, + /* reservd */ -1, + /* BufferOver */ USB_ST_BUF_ERR, + /* BuffUnder */ USB_ST_BUF_ERR, + /* Not Access */ -1, + /* Not Access */ -1 +}; + +/* ED States */ + +#define ED_NEW 0x00 +#define ED_UNLINK 0x01 +#define ED_OPER 0x02 +#define ED_DEL 0x04 +#define ED_URB_DEL 0x08 + +/* usb_ohci_ed */ +struct ed { + __u32 hwINFO; + __u32 hwTailP; + __u32 hwHeadP; + __u32 hwNextED; + + struct ed *ed_prev; + __u8 int_period; + __u8 int_branch; + __u8 int_load; + __u8 int_interval; + __u8 state; + __u8 type; + __u16 last_iso; + struct ed *ed_rm_list; + + struct usb_device *usb_dev; + __u32 unused[3]; +} __attribute__((aligned(16))); +typedef struct ed ed_t; + +/* TD info field */ +#define TD_CC 0xf0000000 +#define TD_CC_GET(td_p) ((td_p >>28) & 0x0f) +#define TD_CC_SET(td_p, cc) (td_p) = ((td_p) & 0x0fffffff) | (((cc) & 0x0f) << 28) +#define TD_EC 0x0C000000 +#define TD_T 0x03000000 +#define TD_T_DATA0 0x02000000 +#define TD_T_DATA1 0x03000000 +#define TD_T_TOGGLE 0x00000000 +#define TD_R 0x00040000 +#define TD_DI 0x00E00000 +#define TD_DI_SET(X) (((X) & 0x07)<< 21) +#define TD_DP 0x00180000 +#define TD_DP_SETUP 0x00000000 +#define TD_DP_IN 0x00100000 +#define TD_DP_OUT 0x00080000 + +#define TD_ISO 0x00010000 +#define TD_DEL 0x00020000 + +/* CC Codes */ +#define TD_CC_NOERROR 0x00 +#define TD_CC_CRC 0x01 +#define TD_CC_BITSTUFFING 0x02 +#define TD_CC_DATATOGGLEM 0x03 +#define TD_CC_STALL 0x04 +#define TD_DEVNOTRESP 0x05 +#define TD_PIDCHECKFAIL 0x06 +#define TD_UNEXPECTEDPID 0x07 +#define TD_DATAOVERRUN 0x08 +#define TD_DATAUNDERRUN 0x09 +#define TD_BUFFEROVERRUN 0x0C +#define TD_BUFFERUNDERRUN 0x0D +#define TD_NOTACCESSED 0x0F + +#define MAXPSW 1 + +struct td { + __u32 hwINFO; + __u32 hwCBP; /* Current Buffer Pointer */ + __u32 hwNextTD; /* Next TD Pointer */ + __u32 hwBE; /* Memory Buffer End Pointer */ + + __u16 hwPSW[MAXPSW]; + __u8 unused; + __u8 index; + struct ed *ed; + struct td *next_dl_td; + struct usb_device *usb_dev; + int transfer_len; + __u32 data; + + __u32 unused2[2]; +} __attribute__((aligned(32))); +typedef struct td td_t; + +#define OHCI_ED_SKIP (1 << 14) + +/* + * The HCCA (Host Controller Communications Area) is a 256 byte + * structure defined in the OHCI spec. that the host controller is + * told the base address of. It must be 256-byte aligned. + */ + +#define NUM_INTS 32 /* part of the OHCI standard */ +struct ohci_hcca { + __u32 int_table[NUM_INTS]; /* Interrupt ED table */ +#if defined(CONFIG_MPC5200) + __u16 pad1; /* set to 0 on each frame_no change */ + __u16 frame_no; /* current frame number */ +#else + __u16 frame_no; /* current frame number */ + __u16 pad1; /* set to 0 on each frame_no change */ +#endif + __u32 done_head; /* info returned for an interrupt */ + u8 reserved_for_hc[116]; +} __attribute__((aligned(256))); + +/* + * Maximum number of root hub ports. + */ +#define MAX_ROOT_PORTS 15 /* maximum OHCI root hub ports */ + +/* + * This is the structure of the OHCI controller's memory mapped I/O + * region. This is Memory Mapped I/O. You must use the readl() and + * writel() macros defined in asm/io.h to access these!! + */ +struct ohci_regs { + /* control and status registers */ + __u32 revision; + __u32 control; + __u32 cmdstatus; + __u32 intrstatus; + __u32 intrenable; + __u32 intrdisable; + /* memory pointers */ + __u32 hcca; + __u32 ed_periodcurrent; + __u32 ed_controlhead; + __u32 ed_controlcurrent; + __u32 ed_bulkhead; + __u32 ed_bulkcurrent; + __u32 donehead; + /* frame counters */ + __u32 fminterval; + __u32 fmremaining; + __u32 fmnumber; + __u32 periodicstart; + __u32 lsthresh; + /* Root hub ports */ + struct ohci_roothub_regs { + __u32 a; + __u32 b; + __u32 status; + __u32 portstatus[MAX_ROOT_PORTS]; + } roothub; +} __attribute__((aligned(32))); + +/* OHCI CONTROL AND STATUS REGISTER MASKS */ + +/* + * HcControl (control) register masks + */ +#define OHCI_CTRL_CBSR (3 << 0) /* control/bulk service ratio */ +#define OHCI_CTRL_PLE (1 << 2) /* periodic list enable */ +#define OHCI_CTRL_IE (1 << 3) /* isochronous enable */ +#define OHCI_CTRL_CLE (1 << 4) /* control list enable */ +#define OHCI_CTRL_BLE (1 << 5) /* bulk list enable */ +#define OHCI_CTRL_HCFS (3 << 6) /* host controller functional state */ +#define OHCI_CTRL_IR (1 << 8) /* interrupt routing */ +#define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */ +#define OHCI_CTRL_RWE (1 << 10) /* remote wakeup enable */ + +/* pre-shifted values for HCFS */ +# define OHCI_USB_RESET (0 << 6) +# define OHCI_USB_RESUME (1 << 6) +# define OHCI_USB_OPER (2 << 6) +# define OHCI_USB_SUSPEND (3 << 6) + +/* + * HcCommandStatus (cmdstatus) register masks + */ +#define OHCI_HCR (1 << 0) /* host controller reset */ +#define OHCI_CLF (1 << 1) /* control list filled */ +#define OHCI_BLF (1 << 2) /* bulk list filled */ +#define OHCI_OCR (1 << 3) /* ownership change request */ +#define OHCI_SOC (3 << 16) /* scheduling overrun count */ + +/* + * masks used with interrupt registers: + * HcInterruptStatus (intrstatus) + * HcInterruptEnable (intrenable) + * HcInterruptDisable (intrdisable) + */ +#define OHCI_INTR_SO (1 << 0) /* scheduling overrun */ +#define OHCI_INTR_WDH (1 << 1) /* writeback of done_head */ +#define OHCI_INTR_SF (1 << 2) /* start frame */ +#define OHCI_INTR_RD (1 << 3) /* resume detect */ +#define OHCI_INTR_UE (1 << 4) /* unrecoverable error */ +#define OHCI_INTR_FNO (1 << 5) /* frame number overflow */ +#define OHCI_INTR_RHSC (1 << 6) /* root hub status change */ +#define OHCI_INTR_OC (1 << 30) /* ownership change */ +#define OHCI_INTR_MIE (1 << 31) /* master interrupt enable */ + +/* Virtual Root HUB */ +struct virt_root_hub { + int devnum; /* Address of Root Hub endpoint */ + void *dev; /* was urb */ + void *int_addr; + int send; + int interval; +}; + +/* USB HUB CONSTANTS (not OHCI-specific; see hub.h) */ + +/* destination of request */ +#define RH_INTERFACE 0x01 +#define RH_ENDPOINT 0x02 +#define RH_OTHER 0x03 + +#define RH_CLASS 0x20 +#define RH_VENDOR 0x40 + +/* Requests: bRequest << 8 | bmRequestType */ +#define RH_GET_STATUS 0x0080 +#define RH_CLEAR_FEATURE 0x0100 +#define RH_SET_FEATURE 0x0300 +#define RH_SET_ADDRESS 0x0500 +#define RH_GET_DESCRIPTOR 0x0680 +#define RH_SET_DESCRIPTOR 0x0700 +#define RH_GET_CONFIGURATION 0x0880 +#define RH_SET_CONFIGURATION 0x0900 +#define RH_GET_STATE 0x0280 +#define RH_GET_INTERFACE 0x0A80 +#define RH_SET_INTERFACE 0x0B00 +#define RH_SYNC_FRAME 0x0C80 +/* Our Vendor Specific Request */ +#define RH_SET_EP 0x2000 + +/* Hub port features */ +#define RH_PORT_CONNECTION 0x00 +#define RH_PORT_ENABLE 0x01 +#define RH_PORT_SUSPEND 0x02 +#define RH_PORT_OVER_CURRENT 0x03 +#define RH_PORT_RESET 0x04 +#define RH_PORT_POWER 0x08 +#define RH_PORT_LOW_SPEED 0x09 + +#define RH_C_PORT_CONNECTION 0x10 +#define RH_C_PORT_ENABLE 0x11 +#define RH_C_PORT_SUSPEND 0x12 +#define RH_C_PORT_OVER_CURRENT 0x13 +#define RH_C_PORT_RESET 0x14 + +/* Hub features */ +#define RH_C_HUB_LOCAL_POWER 0x00 +#define RH_C_HUB_OVER_CURRENT 0x01 + +#define RH_DEVICE_REMOTE_WAKEUP 0x00 +#define RH_ENDPOINT_STALL 0x01 + +#define RH_ACK 0x01 +#define RH_REQ_ERR -1 +#define RH_NACK 0x00 + +/* OHCI ROOT HUB REGISTER MASKS */ + +/* roothub.portstatus [i] bits */ +#define RH_PS_CCS 0x00000001 /* current connect status */ +#define RH_PS_PES 0x00000002 /* port enable status */ +#define RH_PS_PSS 0x00000004 /* port suspend status */ +#define RH_PS_POCI 0x00000008 /* port over current indicator */ +#define RH_PS_PRS 0x00000010 /* port reset status */ +#define RH_PS_PPS 0x00000100 /* port power status */ +#define RH_PS_LSDA 0x00000200 /* low speed device attached */ +#define RH_PS_CSC 0x00010000 /* connect status change */ +#define RH_PS_PESC 0x00020000 /* port enable status change */ +#define RH_PS_PSSC 0x00040000 /* port suspend status change */ +#define RH_PS_OCIC 0x00080000 /* over current indicator change */ +#define RH_PS_PRSC 0x00100000 /* port reset status change */ + +/* roothub.status bits */ +#define RH_HS_LPS 0x00000001 /* local power status */ +#define RH_HS_OCI 0x00000002 /* over current indicator */ +#define RH_HS_DRWE 0x00008000 /* device remote wakeup enable */ +#define RH_HS_LPSC 0x00010000 /* local power status change */ +#define RH_HS_OCIC 0x00020000 /* over current indicator change */ +#define RH_HS_CRWE 0x80000000 /* clear remote wakeup enable */ + +/* roothub.b masks */ +#define RH_B_DR 0x0000ffff /* device removable flags */ +#define RH_B_PPCM 0xffff0000 /* port power control mask */ + +/* roothub.a masks */ +#define RH_A_NDP (0xff << 0) /* number of downstream ports */ +#define RH_A_PSM (1 << 8) /* power switching mode */ +#define RH_A_NPS (1 << 9) /* no power switching */ +#define RH_A_DT (1 << 10) /* device type (mbz) */ +#define RH_A_OCPM (1 << 11) /* over current protection mode */ +#define RH_A_NOCP (1 << 12) /* no over current protection */ +#define RH_A_POTPGT (0xff << 24) /* power on to power good time */ + +/* urb */ +#define N_URB_TD 48 +typedef struct { + ed_t *ed; + __u16 length; /* number of tds associated with this request */ + __u16 td_cnt; /* number of tds already serviced */ + int state; + unsigned long pipe; + int actual_length; + td_t *td[N_URB_TD]; /* list pointer to all corresponding TDs associated with this request */ +} urb_priv_t; +#define URB_DEL 1 + +/* + * This is the full ohci controller description + * + * Note how the "proper" USB information is just + * a subset of what the full implementation needs. (Linus) + */ + +typedef struct ohci { + struct ohci_hcca *hcca; /* hcca */ + /*dma_addr_t hcca_dma; */ + + int irq; + int disabled; /* e.g. got a UE, we're hung */ + int sleeping; + unsigned long flags; /* for HC bugs */ + + struct ohci_regs *regs; /* OHCI controller's memory */ + + ed_t *ed_rm_list[2]; /* lists of all endpoints to be removed */ + ed_t *ed_bulktail; /* last endpoint of bulk list */ + ed_t *ed_controltail; /* last endpoint of control list */ + int intrstatus; + __u32 hc_control; /* copy of the hc control reg */ + struct usb_device *dev[32]; + struct virt_root_hub rh; + + const char *slot_name; +} ohci_t; + +#define NUM_EDS 8 /* num of preallocated endpoint descriptors */ + +struct ohci_device { + ed_t ed[NUM_EDS]; + int ed_cnt; +}; + +/* hcd */ +/* endpoint */ +static int ep_link(ohci_t * ohci, ed_t * ed); +static int ep_unlink(ohci_t * ohci, ed_t * ed); +static ed_t *ep_add_ed(struct usb_device *usb_dev, unsigned long pipe); + +/*-------------------------------------------------------------------------*/ + +/* we need more TDs than EDs */ +#define NUM_TD 64 + +/* +1 so we can align the storage */ +td_t gtd[NUM_TD + 1]; +/* pointers to aligned storage */ +td_t *ptd; + +/* TDs ... */ +static inline struct td *td_alloc(struct usb_device *usb_dev) +{ + int i; + struct td *td; + + td = NULL; + for (i = 0; i < NUM_TD; i++) { + if (ptd[i].usb_dev == NULL) { + td = &ptd[i]; + td->usb_dev = usb_dev; + break; + } + } + + return td; +} + +static inline void ed_free(struct ed *ed) +{ + ed->usb_dev = NULL; +} diff --git a/arch/ppc/cpu/ppc4xx/usbdev.c b/arch/ppc/cpu/ppc4xx/usbdev.c new file mode 100644 index 0000000..fe398af --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/usbdev.c @@ -0,0 +1,230 @@ +/*USB 1.1,2.0 device*/ + +#include <common.h> +#include <asm/processor.h> + +#if (defined(CONFIG_440EP) || defined(CONFIG_440EPX)) && defined(CONFIG_CMD_USB) + +#include <usb.h> +#include <asm/ppc4xx-uic.h> +#include "usbdev.h" + +#define USB_DT_DEVICE 0x01 +#define USB_DT_CONFIG 0x02 +#define USB_DT_STRING 0x03 +#define USB_DT_INTERFACE 0x04 +#define USB_DT_ENDPOINT 0x05 + +int set_value = -1; + +void process_endpoints(unsigned short usb2d0_intrin) +{ + /*will hold the packet received */ + struct usb_device_descriptor usb_device_packet; + struct usb_configuration_descriptor usb_config_packet; + struct usb_string_descriptor usb_string_packet; + struct devrequest setup_packet; + unsigned int *setup_packet_pt; + unsigned char *packet_pt = NULL; + int temp, temp1; + + int i; + + /*printf("{USB device} - endpoint 0x%X \n", usb2d0_intrin); */ + + /*set usb address, seems to not work unless it is done in the next + interrupt, so that is why it is done this way */ + if (set_value != -1) + *(unsigned char *)USB2D0_FADDR_8 = (unsigned char)set_value; + + /*endpoint 1 */ + if (usb2d0_intrin & 0x01) { + setup_packet_pt = (unsigned int *)&setup_packet; + + /*copy packet */ + setup_packet_pt[0] = *(unsigned int *)USB2D0_FIFO_0; + setup_packet_pt[1] = *(unsigned int *)USB2D0_FIFO_0; + temp = *(unsigned int *)USB2D0_FIFO_0; + temp1 = *(unsigned int *)USB2D0_FIFO_0; + + /*do some swapping */ + setup_packet.value = swap_16(setup_packet.value); + setup_packet.index = swap_16(setup_packet.index); + setup_packet.length = swap_16(setup_packet.length); + + /*clear rx packet */ + *(unsigned short *)USB2D0_INCSR0_8 = 0x48; + + /*printf("0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n", setup_packet.requesttype, + setup_packet.request, setup_packet.value, + setup_packet.index, setup_packet.length, temp, temp1 ); */ + + switch (setup_packet.request) { + case USB_REQ_GET_DESCRIPTOR: + + switch (setup_packet.value >> 8) { + case USB_DT_DEVICE: + /*create packet */ + usb_device_packet.bLength = 18; + usb_device_packet.bDescriptorType = + USB_DT_DEVICE; +#ifdef USB_2_0_DEVICE + usb_device_packet.bcdUSB = swap_16(0x200); +#else + usb_device_packet.bcdUSB = swap_16(0x110); +#endif + usb_device_packet.bDeviceClass = 0xff; + usb_device_packet.bDeviceSubClass = 0; + usb_device_packet.bDeviceProtocol = 0; + usb_device_packet.bMaxPacketSize0 = 32; + usb_device_packet.idVendor = swap_16(1); + usb_device_packet.idProduct = swap_16(2); + usb_device_packet.bcdDevice = swap_16(0x300); + usb_device_packet.iManufacturer = 1; + usb_device_packet.iProduct = 1; + usb_device_packet.iSerialNumber = 1; + usb_device_packet.bNumConfigurations = 1; + + /*put packet in fifo */ + packet_pt = (unsigned char *)&usb_device_packet; + break; + + case USB_DT_CONFIG: + /*create packet */ + usb_config_packet.bLength = 9; + usb_config_packet.bDescriptorType = + USB_DT_CONFIG; + usb_config_packet.wTotalLength = swap_16(25); + usb_config_packet.bNumInterfaces = 1; + usb_config_packet.bConfigurationValue = 1; + usb_config_packet.iConfiguration = 0; + usb_config_packet.bmAttributes = 0x40; + usb_config_packet.bMaxPower = 0; + + /*put packet in fifo */ + packet_pt = (unsigned char *)&usb_config_packet; + break; + + case USB_DT_STRING: + /*create packet */ + usb_string_packet.bLength = 2; + usb_string_packet.bDescriptorType = + USB_DT_STRING; + usb_string_packet.wData[0] = 0x0094; + + /*put packet in fifo */ + packet_pt = (unsigned char *)&usb_string_packet; + break; + } + + /*put packet in fifo */ + for (i = 0; i < (setup_packet.length); i++) { + *(unsigned char *)USB2D0_FIFO_0 = packet_pt[i]; + } + + /*give tx command */ + *(unsigned short *)USB2D0_INCSR0_8 = 0x0a; + + break; + + case USB_REQ_SET_ADDRESS: + + /*copy usb address */ + set_value = setup_packet.value; + + break; + } + + } +} + +void process_other(unsigned char usb2d0_intrusb) +{ + + /*check for sof */ + if (usb2d0_intrusb & 0x08) { + /*printf("{USB device} - sof detected\n"); */ + } + + /*check for reset */ + if (usb2d0_intrusb & 0x04) { + /*printf("{USB device} - reset detected\n"); */ + + /*copy usb address of zero, need to do this when usb reset */ + set_value = 0; + } + + if (usb2d0_intrusb & 0x02) { + /*printf("{USB device} - resume detected\n"); */ + } + + if (usb2d0_intrusb & 0x01) { + /*printf("{USB device} - suspend detected\n"); */ + } +} + +int usbInt(void) +{ + /*Must read these 2 registers and use values to clear interrupts. If you + do not read them then the interrupt will not be cleared. If you do not + use the variable the optimizer will not do a read. */ + volatile unsigned short usb2d0_intrin = + *(unsigned short *)USB2D0_INTRIN_16; + volatile unsigned char usb2d0_intrusb = + *(unsigned char *)USB2D0_INTRUSB_8; + + /*check if there was an endpoint interrupt */ + if (usb2d0_intrin != 0) { + process_endpoints(usb2d0_intrin); + } + + /*check for other interrupts */ + if (usb2d0_intrusb != 0) { + process_other(usb2d0_intrusb); + } + + return 0; +} + +#if defined(CONFIG_440EPX) +void usb_dev_init() +{ + printf("USB 2.0 Device init\n"); + + /*usb dev init */ + *(unsigned char *)USB2D0_POWER_8 = 0xa1; /* 2.0 */ + + /*enable interrupts */ + *(unsigned char *)USB2D0_INTRUSBE_8 = 0x0f; + + irq_install_handler(VECNUM_USBDEV, (interrupt_handler_t *) usbInt, + NULL); +} +#else +void usb_dev_init() +{ +#ifdef USB_2_0_DEVICE + printf("USB 2.0 Device init\n"); + /*select 2.0 device */ + mtsdr(SDR0_USB0, 0x0); /* 2.0 */ + + /*usb dev init */ + *(unsigned char *)USB2D0_POWER_8 = 0xa1; /* 2.0 */ +#else + printf("USB 1.1 Device init\n"); + /*select 1.1 device */ + mtsdr(SDR0_USB0, 0x2); /* 1.1 */ + + /*usb dev init */ + *(unsigned char *)USB2D0_POWER_8 = 0xc0; /* 1.1 */ +#endif + + /*enable interrupts */ + *(unsigned char *)USB2D0_INTRUSBE_8 = 0x0f; + + irq_install_handler(VECNUM_USBDEV, (interrupt_handler_t *) usbInt, + NULL); +} +#endif + +#endif /* CONFIG_440EP || CONFIG_440EPX */ diff --git a/arch/ppc/cpu/ppc4xx/usbdev.h b/arch/ppc/cpu/ppc4xx/usbdev.h new file mode 100644 index 0000000..ef6a2da --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/usbdev.h @@ -0,0 +1,31 @@ +#include <config.h> + +/*Common Registers*/ +#define USB2D0_INTRIN_16 (CONFIG_SYS_USB_DEVICE | 0x100) +#define USB2D0_POWER_8 (CONFIG_SYS_USB_DEVICE | 0x102) +#define USB2D0_FADDR_8 (CONFIG_SYS_USB_DEVICE | 0x103) +#define USB2D0_INTRINE_16 (CONFIG_SYS_USB_DEVICE | 0x104) +#define USB2D0_INTROUT_16 (CONFIG_SYS_USB_DEVICE | 0x106) +#define USB2D0_INTRUSBE_8 (CONFIG_SYS_USB_DEVICE | 0x108) +#define USB2D0_INTRUSB_8 (CONFIG_SYS_USB_DEVICE | 0x109) +#define USB2D0_INTROUTE_16 (CONFIG_SYS_USB_DEVICE | 0x10a) +#define USB2D0_TSTMODE_8 (CONFIG_SYS_USB_DEVICE | 0x10c) +#define USB2D0_INDEX_8 (CONFIG_SYS_USB_DEVICE | 0x10d) +#define USB2D0_FRAME_16 (CONFIG_SYS_USB_DEVICE | 0x10e) + +/*Indexed Registers*/ +#define USB2D0_INCSR0_8 (CONFIG_SYS_USB_DEVICE | 0x110) +#define USB2D0_INCSR_16 (CONFIG_SYS_USB_DEVICE | 0x110) +#define USB2D0_INMAXP_16 (CONFIG_SYS_USB_DEVICE | 0x112) +#define USB2D0_OUTCSR_16 (CONFIG_SYS_USB_DEVICE | 0x114) +#define USB2D0_OUTMAXP_16 (CONFIG_SYS_USB_DEVICE | 0x116) +#define USB2D0_OUTCOUNT0_8 (CONFIG_SYS_USB_DEVICE | 0x11a) +#define USB2D0_OUTCOUNT_16 (CONFIG_SYS_USB_DEVICE | 0x11a) + +/*FIFOs*/ +#define USB2D0_FIFO_0 (CONFIG_SYS_USB_DEVICE | 0x120) +#define USB2D0_FIFO_1 (CONFIG_SYS_USB_DEVICE | 0x124) +#define USB2D0_FIFO_2 (CONFIG_SYS_USB_DEVICE | 0x128) +#define USB2D0_FIFO_3 (CONFIG_SYS_USB_DEVICE | 0x12c) + +void usb_dev_init(void); diff --git a/arch/ppc/cpu/ppc4xx/xilinx_irq.c b/arch/ppc/cpu/ppc4xx/xilinx_irq.c new file mode 100644 index 0000000..7108777 --- /dev/null +++ b/arch/ppc/cpu/ppc4xx/xilinx_irq.c @@ -0,0 +1,100 @@ +/* + * (C) Copyright 2008 + * Ricado Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es + * This work has been supported by: QTechnology http://qtec.com/ + * Based on interrupts.c Wolfgang Denk-DENX Software Engineering-wd@denx.de + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <asm/processor.h> +#include <asm/interrupt.h> +#include <ppc4xx.h> +#include <ppc_asm.tmpl> +#include <commproc.h> +#include <asm/io.h> +#include <asm/xilinx_irq.h> + +DECLARE_GLOBAL_DATA_PTR; + +void pic_enable(void) +{ + debug("Xilinx PIC at 0x%8x\n", intc); + + /* + * Disable all external interrupts until they are + * explicitly requested. + */ + out_be32((u32 *) IER, 0); + + /* Acknowledge any pending interrupts just in case. */ + out_be32((u32 *) IAR, 0xffffffff); + + /* Turn on the Master Enable. */ + out_be32((u32 *) MER, 0x3UL); + + return; +} + +int xilinx_pic_irq_get(void) +{ + u32 irq; + irq = in_be32((u32 *) IVR); + + /* If no interrupt is pending then all bits of the IVR are set to 1. As + * the IVR is as many bits wide as numbers of inputs are available. + * Therefore, if all bits of the IVR are set to one, its content will + * be bigger than XPAR_INTC_MAX_NUM_INTR_INPUTS. + */ + if (irq >= XPAR_INTC_MAX_NUM_INTR_INPUTS) + irq = -1; /* report no pending interrupt. */ + + debug("get_irq: %d\n", irq); + return (irq); +} + +void pic_irq_enable(unsigned int irq) +{ + u32 mask = IRQ_MASK(irq); + debug("enable: %d\n", irq); + out_be32((u32 *) SIE, mask); +} + +void pic_irq_disable(unsigned int irq) +{ + u32 mask = IRQ_MASK(irq); + debug("disable: %d\n", irq); + out_be32((u32 *) CIE, mask); +} + +void pic_irq_ack(unsigned int irq) +{ + u32 mask = IRQ_MASK(irq); + debug("ack: %d\n", irq); + out_be32((u32 *) IAR, mask); +} + +void external_interrupt(struct pt_regs *regs) +{ + int irq; + + irq = xilinx_pic_irq_get(); + if (irq < 0) + return; + + interrupt_run_handler(irq); + + return; +} diff --git a/arch/ppc/include/asm/4xx_pci.h b/arch/ppc/include/asm/4xx_pci.h new file mode 100644 index 0000000..f686e7c --- /dev/null +++ b/arch/ppc/include/asm/4xx_pci.h @@ -0,0 +1,60 @@ +#ifndef _405GP_PCI_H +#define _405GP_PCI_H + +#include <pci.h> + +/*----------------------------------------------------------------------------+ +| 405GP PCI core memory map defines. ++----------------------------------------------------------------------------*/ +#define MIN_PCI_MEMADDR1 0x80000000 +#define MIN_PCI_MEMADDR2 0x00000000 +#define MIN_PLB_PCI_IOADDR 0xE8000000 /* PLB side of PCI I/O address space */ +#define MIN_PCI_PCI_IOADDR 0x00000000 /* PCI side of PCI I/O address space */ +#define MAX_PCI_DEVICES 32 + +/*----------------------------------------------------------------------------+ +| Defines for the 405GP PCI Config address and data registers followed by +| defines for the standard PCI device configuration header. ++----------------------------------------------------------------------------*/ +#define PCICFGADR 0xEEC00000 +#define PCICFGDATA 0xEEC00004 + +#define PCIBUSNUM 0x40 /* 405GP specific parameters */ +#define PCISUBBUSNUM 0x41 +#define PCIDISCOUNT 0x42 +#define PCIBRDGOPT1 0x4A +#define PCIBRDGOPT2 0x60 + +/*----------------------------------------------------------------------------+ +| Defines for 405GP PCI Master local configuration regs. ++----------------------------------------------------------------------------*/ +#define PMM0LA 0xEF400000 +#define PMM0MA 0xEF400004 +#define PMM0PCILA 0xEF400008 +#define PMM0PCIHA 0xEF40000C +#define PMM1LA 0xEF400010 +#define PMM1MA 0xEF400014 +#define PMM1PCILA 0xEF400018 +#define PMM1PCIHA 0xEF40001C +#define PMM2LA 0xEF400020 +#define PMM2MA 0xEF400024 +#define PMM2PCILA 0xEF400028 +#define PMM2PCIHA 0xEF40002C + +/*----------------------------------------------------------------------------+ +| Defines for 405GP PCI Target local configuration regs. ++----------------------------------------------------------------------------*/ +#define PTM1MS 0xEF400030 +#define PTM1LA 0xEF400034 +#define PTM2MS 0xEF400038 +#define PTM2LA 0xEF40003C + +#define PCIDEVID_405GP 0x0 + +void board_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev); +int pci_arbiter_enabled(void); +int __pci_pre_init(struct pci_controller *hose); +void __pci_target_init(struct pci_controller *hose); +void __pci_master_init(struct pci_controller *hose); + +#endif diff --git a/arch/ppc/include/asm/4xx_pcie.h b/arch/ppc/include/asm/4xx_pcie.h new file mode 100644 index 0000000..a0e88de --- /dev/null +++ b/arch/ppc/include/asm/4xx_pcie.h @@ -0,0 +1,417 @@ +/* + * Copyright (c) 2005 Cisco Systems. All rights reserved. + * Roland Dreier <rolandd@cisco.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef __4XX_PCIE_H +#define __4XX_PCIE_H + +#include <ppc4xx.h> +#include <pci.h> + +#define DCRN_SDR0_CFGADDR 0x00e +#define DCRN_SDR0_CFGDATA 0x00f + +#if defined(CONFIG_440SPE) +#define CONFIG_SYS_PCIE_NR_PORTS 3 + +#define CONFIG_SYS_PCIE_ADDR_HIGH 0x0000000d + +#define DCRN_PCIE0_BASE 0x100 +#define DCRN_PCIE1_BASE 0x120 +#define DCRN_PCIE2_BASE 0x140 + +#define PCIE0_SDR 0x300 +#define PCIE1_SDR 0x340 +#define PCIE2_SDR 0x370 +#endif + +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) +#define CONFIG_SYS_PCIE_NR_PORTS 2 + +#define CONFIG_SYS_PCIE_ADDR_HIGH 0x0000000d + +#define DCRN_PCIE0_BASE 0x100 +#define DCRN_PCIE1_BASE 0x120 + +#define PCIE0_SDR 0x300 +#define PCIE1_SDR 0x340 +#endif + +#if defined(CONFIG_405EX) +#define CONFIG_SYS_PCIE_NR_PORTS 2 + +#define CONFIG_SYS_PCIE_ADDR_HIGH 0x00000000 + +#define DCRN_PCIE0_BASE 0x040 +#define DCRN_PCIE1_BASE 0x060 + +#define PCIE0_SDR 0x400 +#define PCIE1_SDR 0x440 +#endif + +#define PCIE0 DCRN_PCIE0_BASE +#define PCIE1 DCRN_PCIE1_BASE +#define PCIE2 DCRN_PCIE2_BASE + +#define DCRN_PEGPL_CFGBAH(base) (base + 0x00) +#define DCRN_PEGPL_CFGBAL(base) (base + 0x01) +#define DCRN_PEGPL_CFGMSK(base) (base + 0x02) +#define DCRN_PEGPL_MSGBAH(base) (base + 0x03) +#define DCRN_PEGPL_MSGBAL(base) (base + 0x04) +#define DCRN_PEGPL_MSGMSK(base) (base + 0x05) +#define DCRN_PEGPL_OMR1BAH(base) (base + 0x06) +#define DCRN_PEGPL_OMR1BAL(base) (base + 0x07) +#define DCRN_PEGPL_OMR1MSKH(base) (base + 0x08) +#define DCRN_PEGPL_OMR1MSKL(base) (base + 0x09) +#define DCRN_PEGPL_REGBAH(base) (base + 0x12) +#define DCRN_PEGPL_REGBAL(base) (base + 0x13) +#define DCRN_PEGPL_REGMSK(base) (base + 0x14) +#define DCRN_PEGPL_SPECIAL(base) (base + 0x15) +#define DCRN_PEGPL_CFG(base) (base + 0x16) + +/* + * System DCRs (SDRs) + */ +#define PESDR0_PLLLCT1 0x03a0 +#define PESDR0_PLLLCT2 0x03a1 +#define PESDR0_PLLLCT3 0x03a2 + +/* common regs, at for all 4xx with PCIe core */ +#define SDRN_PESDR_UTLSET1(n) (sdr_base(n) + 0x00) +#define SDRN_PESDR_UTLSET2(n) (sdr_base(n) + 0x01) +#define SDRN_PESDR_DLPSET(n) (sdr_base(n) + 0x02) +#define SDRN_PESDR_LOOP(n) (sdr_base(n) + 0x03) +#define SDRN_PESDR_RCSSET(n) (sdr_base(n) + 0x04) +#define SDRN_PESDR_RCSSTS(n) (sdr_base(n) + 0x05) + +#if defined(CONFIG_440SPE) +#define SDRN_PESDR_HSSL0SET1(n) (sdr_base(n) + 0x06) +#define SDRN_PESDR_HSSL0SET2(n) (sdr_base(n) + 0x07) +#define SDRN_PESDR_HSSL0STS(n) (sdr_base(n) + 0x08) +#define SDRN_PESDR_HSSL1SET1(n) (sdr_base(n) + 0x09) +#define SDRN_PESDR_HSSL1SET2(n) (sdr_base(n) + 0x0a) +#define SDRN_PESDR_HSSL1STS(n) (sdr_base(n) + 0x0b) +#define SDRN_PESDR_HSSL2SET1(n) (sdr_base(n) + 0x0c) +#define SDRN_PESDR_HSSL2SET2(n) (sdr_base(n) + 0x0d) +#define SDRN_PESDR_HSSL2STS(n) (sdr_base(n) + 0x0e) +#define SDRN_PESDR_HSSL3SET1(n) (sdr_base(n) + 0x0f) +#define SDRN_PESDR_HSSL3SET2(n) (sdr_base(n) + 0x10) +#define SDRN_PESDR_HSSL3STS(n) (sdr_base(n) + 0x11) + +#define PESDR0_UTLSET1 0x0300 +#define PESDR0_UTLSET2 0x0301 +#define PESDR0_DLPSET 0x0302 +#define PESDR0_LOOP 0x0303 +#define PESDR0_RCSSET 0x0304 +#define PESDR0_RCSSTS 0x0305 +#define PESDR0_HSSL0SET1 0x0306 +#define PESDR0_HSSL0SET2 0x0307 +#define PESDR0_HSSL0STS 0x0308 +#define PESDR0_HSSL1SET1 0x0309 +#define PESDR0_HSSL1SET2 0x030a +#define PESDR0_HSSL1STS 0x030b +#define PESDR0_HSSL2SET1 0x030c +#define PESDR0_HSSL2SET2 0x030d +#define PESDR0_HSSL2STS 0x030e +#define PESDR0_HSSL3SET1 0x030f +#define PESDR0_HSSL3SET2 0x0310 +#define PESDR0_HSSL3STS 0x0311 +#define PESDR0_HSSL4SET1 0x0312 +#define PESDR0_HSSL4SET2 0x0313 +#define PESDR0_HSSL4STS 0x0314 +#define PESDR0_HSSL5SET1 0x0315 +#define PESDR0_HSSL5SET2 0x0316 +#define PESDR0_HSSL5STS 0x0317 +#define PESDR0_HSSL6SET1 0x0318 +#define PESDR0_HSSL6SET2 0x0319 +#define PESDR0_HSSL6STS 0x031a +#define PESDR0_HSSL7SET1 0x031b +#define PESDR0_HSSL7SET2 0x031c +#define PESDR0_HSSL7STS 0x031d +#define PESDR0_HSSCTLSET 0x031e +#define PESDR0_LANE_ABCD 0x031f +#define PESDR0_LANE_EFGH 0x0320 + +#define PESDR1_UTLSET1 0x0340 +#define PESDR1_UTLSET2 0x0341 +#define PESDR1_DLPSET 0x0342 +#define PESDR1_LOOP 0x0343 +#define PESDR1_RCSSET 0x0344 +#define PESDR1_RCSSTS 0x0345 +#define PESDR1_HSSL0SET1 0x0346 +#define PESDR1_HSSL0SET2 0x0347 +#define PESDR1_HSSL0STS 0x0348 +#define PESDR1_HSSL1SET1 0x0349 +#define PESDR1_HSSL1SET2 0x034a +#define PESDR1_HSSL1STS 0x034b +#define PESDR1_HSSL2SET1 0x034c +#define PESDR1_HSSL2SET2 0x034d +#define PESDR1_HSSL2STS 0x034e +#define PESDR1_HSSL3SET1 0x034f +#define PESDR1_HSSL3SET2 0x0350 +#define PESDR1_HSSL3STS 0x0351 +#define PESDR1_HSSCTLSET 0x0352 +#define PESDR1_LANE_ABCD 0x0353 + +#define PESDR2_UTLSET1 0x0370 +#define PESDR2_UTLSET2 0x0371 +#define PESDR2_DLPSET 0x0372 +#define PESDR2_LOOP 0x0373 +#define PESDR2_RCSSET 0x0374 +#define PESDR2_RCSSTS 0x0375 +#define PESDR2_HSSL0SET1 0x0376 +#define PESDR2_HSSL0SET2 0x0377 +#define PESDR2_HSSL0STS 0x0378 +#define PESDR2_HSSL1SET1 0x0379 +#define PESDR2_HSSL1SET2 0x037a +#define PESDR2_HSSL1STS 0x037b +#define PESDR2_HSSL2SET1 0x037c +#define PESDR2_HSSL2SET2 0x037d +#define PESDR2_HSSL2STS 0x037e +#define PESDR2_HSSL3SET1 0x037f +#define PESDR2_HSSL3SET2 0x0380 +#define PESDR2_HSSL3STS 0x0381 +#define PESDR2_HSSCTLSET 0x0382 +#define PESDR2_LANE_ABCD 0x0383 + +#elif defined(CONFIG_405EX) + +#define SDRN_PESDR_PHYSET1(n) (sdr_base(n) + 0x06) +#define SDRN_PESDR_PHYSET2(n) (sdr_base(n) + 0x07) +#define SDRN_PESDR_BIST(n) (sdr_base(n) + 0x08) +#define SDRN_PESDR_LPB(n) (sdr_base(n) + 0x0b) +#define SDRN_PESDR_PHYSTA(n) (sdr_base(n) + 0x0c) + +#define PESDR0_UTLSET1 0x0400 +#define PESDR0_UTLSET2 0x0401 +#define PESDR0_DLPSET 0x0402 +#define PESDR0_LOOP 0x0403 +#define PESDR0_RCSSET 0x0404 +#define PESDR0_RCSSTS 0x0405 +#define PESDR0_PHYSET1 0x0406 +#define PESDR0_PHYSET2 0x0407 +#define PESDR0_BIST 0x0408 +#define PESDR0_LPB 0x040B +#define PESDR0_PHYSTA 0x040C + +#define PESDR1_UTLSET1 0x0440 +#define PESDR1_UTLSET2 0x0441 +#define PESDR1_DLPSET 0x0442 +#define PESDR1_LOOP 0x0443 +#define PESDR1_RCSSET 0x0444 +#define PESDR1_RCSSTS 0x0445 +#define PESDR1_PHYSET1 0x0446 +#define PESDR1_PHYSET2 0x0447 +#define PESDR1_BIST 0x0448 +#define PESDR1_LPB 0x044B +#define PESDR1_PHYSTA 0x044C + +#elif defined(CONFIG_460EX) || defined(CONFIG_460GT) + +#define PESDR0_L0BIST 0x0308 /* PE0 L0 built in self test */ +#define PESDR0_L0BISTSTS 0x0309 /* PE0 L0 built in self test status */ +#define PESDR0_L0CDRCTL 0x030A /* PE0 L0 CDR control */ +#define PESDR0_L0DRV 0x030B /* PE0 L0 drive */ +#define PESDR0_L0REC 0x030C /* PE0 L0 receiver */ +#define PESDR0_L0LPB 0x030D /* PE0 L0 loopback */ +#define PESDR0_L0CLK 0x030E /* PE0 L0 clocking */ +#define PESDR0_PHY_CTL_RST 0x030F /* PE0 PHY control reset */ +#define PESDR0_RSTSTA 0x0310 /* PE0 reset status */ +#define PESDR0_OBS 0x0311 /* PE0 observation register */ +#define PESDR0_L0ERRC 0x0320 /* PE0 L0 error counter */ + +#define PESDR1_L0BIST 0x0348 /* PE1 L0 built in self test */ +#define PESDR1_L1BIST 0x0349 /* PE1 L1 built in self test */ +#define PESDR1_L2BIST 0x034A /* PE1 L2 built in self test */ +#define PESDR1_L3BIST 0x034B /* PE1 L3 built in self test */ +#define PESDR1_L0BISTSTS 0x034C /* PE1 L0 built in self test status */ +#define PESDR1_L1BISTSTS 0x034D /* PE1 L1 built in self test status */ +#define PESDR1_L2BISTSTS 0x034E /* PE1 L2 built in self test status */ +#define PESDR1_L3BISTSTS 0x034F /* PE1 L3 built in self test status */ +#define PESDR1_L0CDRCTL 0x0350 /* PE1 L0 CDR control */ +#define PESDR1_L1CDRCTL 0x0351 /* PE1 L1 CDR control */ +#define PESDR1_L2CDRCTL 0x0352 /* PE1 L2 CDR control */ +#define PESDR1_L3CDRCTL 0x0353 /* PE1 L3 CDR control */ +#define PESDR1_L0DRV 0x0354 /* PE1 L0 drive */ +#define PESDR1_L1DRV 0x0355 /* PE1 L1 drive */ +#define PESDR1_L2DRV 0x0356 /* PE1 L2 drive */ +#define PESDR1_L3DRV 0x0357 /* PE1 L3 drive */ +#define PESDR1_L0REC 0x0358 /* PE1 L0 receiver */ +#define PESDR1_L1REC 0x0359 /* PE1 L1 receiver */ +#define PESDR1_L2REC 0x035A /* PE1 L2 receiver */ +#define PESDR1_L3REC 0x035B /* PE1 L3 receiver */ +#define PESDR1_L0LPB 0x035C /* PE1 L0 loopback */ +#define PESDR1_L1LPB 0x035D /* PE1 L1 loopback */ +#define PESDR1_L2LPB 0x035E /* PE1 L2 loopback */ +#define PESDR1_L3LPB 0x035F /* PE1 L3 loopback */ +#define PESDR1_L0CLK 0x0360 /* PE1 L0 clocking */ +#define PESDR1_L1CLK 0x0361 /* PE1 L1 clocking */ +#define PESDR1_L2CLK 0x0362 /* PE1 L2 clocking */ +#define PESDR1_L3CLK 0x0363 /* PE1 L3 clocking */ +#define PESDR1_PHY_CTL_RST 0x0364 /* PE1 PHY control reset */ +#define PESDR1_RSTSTA 0x0365 /* PE1 reset status */ +#define PESDR1_OBS 0x0366 /* PE1 observation register */ +#define PESDR1_L0ERRC 0x0368 /* PE1 L0 error counter */ +#define PESDR1_L1ERRC 0x0369 /* PE1 L1 error counter */ +#define PESDR1_L2ERRC 0x036A /* PE1 L2 error counter */ +#define PESDR1_L3ERRC 0x036B /* PE1 L3 error counter */ +#define PESDR0_IHS1 0x036C /* PE interrupt handler interfact setting 1 */ +#define PESDR0_IHS2 0x036D /* PE interrupt handler interfact setting 2 */ + +#endif + +/* SDR Bit Mappings */ +#define PESDRx_RCSSET_HLDPLB 0x10000000 +#define PESDRx_RCSSET_RSTGU 0x01000000 +#define PESDRx_RCSSET_RDY 0x00100000 +#define PESDRx_RCSSET_RSTDL 0x00010000 +#define PESDRx_RCSSET_RSTPYN 0x00001000 + +#define PESDRx_RCSSTS_PLBIDL 0x10000000 +#define PESDRx_RCSSTS_HRSTRQ 0x01000000 +#define PESDRx_RCSSTS_PGRST 0x00100000 +#define PESDRx_RCSSTS_VC0ACT 0x00010000 +#define PESDRx_RCSSTS_BMEN 0x00000100 + +/* + * UTL register offsets + */ +#define PEUTL_PBCTL 0x00 +#define PEUTL_PBBSZ 0x20 +#define PEUTL_OPDBSZ 0x68 +#define PEUTL_IPHBSZ 0x70 +#define PEUTL_IPDBSZ 0x78 +#define PEUTL_OUTTR 0x90 +#define PEUTL_INTR 0x98 +#define PEUTL_PCTL 0xa0 +#define PEUTL_RCSTA 0xb0 +#define PEUTL_RCIRQEN 0xb8 + +/* + * Config space register offsets + */ +#define PECFG_BAR0LMPA 0x210 +#define PECFG_BAR0HMPA 0x214 +#define PECFG_BAR1MPA 0x218 +#define PECFG_BAR2LMPA 0x220 +#define PECFG_BAR2HMPA 0x224 + +#define PECFG_PIMEN 0x33c +#define PECFG_PIM0LAL 0x340 +#define PECFG_PIM0LAH 0x344 +#define PECFG_PIM1LAL 0x348 +#define PECFG_PIM1LAH 0x34c +#define PECFG_PIM01SAL 0x350 +#define PECFG_PIM01SAH 0x354 + +#define PECFG_POM0LAL 0x380 +#define PECFG_POM0LAH 0x384 + +#define SDR_READ(offset) ({\ + mtdcr(DCRN_SDR0_CFGADDR, offset); \ + mfdcr(DCRN_SDR0_CFGDATA);}) + +#define SDR_WRITE(offset, data) ({\ + mtdcr(DCRN_SDR0_CFGADDR, offset); \ + mtdcr(DCRN_SDR0_CFGDATA,data);}) + +#define GPL_DMER_MASK_DISA 0x02000000 + +#define U64_TO_U32_LOW(val) ((u32)((val) & 0x00000000ffffffffULL)) +#define U64_TO_U32_HIGH(val) ((u32)((val) >> 32)) + +/* + * Prototypes + */ +int ppc4xx_init_pcie(void); +int ppc4xx_init_pcie_rootport(int port); +int ppc4xx_init_pcie_endport(int port); +void ppc4xx_setup_pcie_rootpoint(struct pci_controller *hose, int port); +int ppc4xx_setup_pcie_endpoint(struct pci_controller *hose, int port); +int pcie_hose_scan(struct pci_controller *hose, int bus); + +/* + * Function to determine root port or endport from env variable. + */ +static inline int is_end_point(int port) +{ + char s[10], *tk; + char *pcie_mode = getenv("pcie_mode"); + + if (pcie_mode == NULL) + return 0; + + strcpy(s, pcie_mode); + tk = strtok(s, ":"); + + switch (port) { + case 0: + if (tk != NULL) { + if (!(strcmp(tk, "ep") && strcmp(tk, "EP"))) + return 1; + else + return 0; + } + else + return 0; + + case 1: + tk = strtok(NULL, ":"); + if (tk != NULL) { + if (!(strcmp(tk, "ep") && strcmp(tk, "EP"))) + return 1; + else + return 0; + } + else + return 0; + + case 2: + tk = strtok(NULL, ":"); + if (tk != NULL) + tk = strtok(NULL, ":"); + if (tk != NULL) { + if (!(strcmp(tk, "ep") && strcmp(tk, "EP"))) + return 1; + else + return 0; + } + else + return 0; + } + + return 0; +} + +static inline void mdelay(int n) +{ + u32 ms = n; + + while (ms--) + udelay(1000); +} + +#if defined(PCIE0_SDR) +static inline u32 sdr_base(int port) +{ + switch (port) { + default: /* to satisfy compiler */ + case 0: + return PCIE0_SDR; + case 1: + return PCIE1_SDR; +#if CONFIG_SYS_PCIE_NR_PORTS > 2 + case 2: + return PCIE2_SDR; +#endif + } +} +#endif /* defined(PCIE0_SDR) */ + +#endif /* __4XX_PCIE_H */ diff --git a/arch/ppc/include/asm/5xx_immap.h b/arch/ppc/include/asm/5xx_immap.h new file mode 100644 index 0000000..72cbab4 --- /dev/null +++ b/arch/ppc/include/asm/5xx_immap.h @@ -0,0 +1,439 @@ +/* + * (C) Copyright 2003 + * Martin Winistoerfer, martinwinistoerfer@gmx.ch. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, + */ + +/* + * File: 5xx_immap.h + * + * Discription: MPC555 Internal Memory Map + * + */ + +#ifndef __IMMAP_5XX__ +#define __IMMAP_5XX__ + +/* System Configuration Registers. +*/ +typedef struct sys_conf { + uint sc_siumcr; + uint sc_sypcr; + char res1[6]; + ushort sc_swsr; + uint sc_sipend; + uint sc_simask; + uint sc_siel; + uint sc_sivec; + uint sc_tesr; + uint sc_sgpiodt1; + uint sc_sgpiodt2; + uint sc_sgpiocr; + uint sc_emcr; + uint sc_res1aa; + uint sc_res1ab; + uint sc_pdmcr; + char res3[192]; +} sysconf5xx_t; + + +/* Memory Controller Registers. +*/ +typedef struct mem_ctlr { + uint memc_br0; + uint memc_or0; + uint memc_br1; + uint memc_or1; + uint memc_br2; + uint memc_or2; + uint memc_br3; + uint memc_or3; + char res1[32]; + uint memc_dmbr; + uint memc_dmor; + char res2[48]; + ushort memc_mstat; + ushort memc_res4a; + char res3[132]; +} memctl5xx_t; + +/* System Integration Timers. +*/ +typedef struct sys_int_timers { + ushort sit_tbscr; + char res1[2]; + uint sit_tbref0; + uint sit_tbref1; + char res2[20]; + ushort sit_rtcsc; + char res3[2]; + uint sit_rtc; + uint sit_rtsec; + uint sit_rtcal; + char res4[16]; + ushort sit_piscr; + char res5[2]; + uint sit_pitc; + uint sit_pitr; + char res6[52]; +} sit5xx_t; + +/* Clocks and Reset +*/ +typedef struct clk_and_reset { + uint car_sccr; + uint car_plprcr; + ushort car_rsr; + ushort car_res7a; + ushort car_colir; + ushort car_res7b; + ushort car_vsrmcr; + ushort car_res7c; + char res1[108]; + +} car5xx_t; + +#define TBSCR_TBE ((ushort)0x0001) + +/* System Integration Timer Keys +*/ +typedef struct sitk { + uint sitk_tbscrk; + uint sitk_tbref0k; + uint sitk_tbref1k; + uint sitk_tbk; + char res1[16]; + uint sitk_rtcsck; + uint sitk_rtck; + uint sitk_rtseck; + uint sitk_rtcalk; + char res2[16]; + uint sitk_piscrk; + uint sitk_pitck; + char res3[56]; +} sitk5xx_t; + +/* Clocks and Reset Keys. +*/ +typedef struct cark { + uint cark_sccrk; + uint cark_plprcrk; + uint cark_rsrk; + char res1[1140]; +} cark8xx_t; + +/* The key to unlock registers maintained by keep-alive power. +*/ +#define KAPWR_KEY ((unsigned int)0x55ccaa33) + +/* Flash Configuration +*/ +typedef struct fl { + uint fl_cmfmcr; + uint fl_cmftst; + uint fl_cmfctl; + char res1[52]; +} fl5xx_t; + +/* Dpram Control +*/ +typedef struct dprc { + ushort dprc_dptmcr; + ushort dprc_ramtst; + ushort dprc_rambar; + ushort dprc_misrh; + ushort dprc_misrl; + ushort dprc_miscnt; +} dprc5xx_t; + +/* Time Processor Unit +*/ +typedef struct tpu { + ushort tpu_tpumcr; + ushort tpu_tcr; + ushort tpu_dscr; + ushort tpu_dssr; + ushort tpu_ticr; + ushort tpu_cier; + ushort tpu_cfsr0; + ushort tpu_cfsr1; + ushort tpu_cfsr2; + ushort tpu_cfsr3; + ushort tpu_hsqr0; + ushort tpu_hsqr1; + ushort tpu_hsrr0; + ushort tpu_hsrr1; + ushort tpu_cpr0; + ushort tpu_cpr1; + ushort tpu_cisr; + ushort tpu_lr; + ushort tpu_sglr; + ushort tpu_dcnr; + ushort tpu_tpumcr2; + ushort tpu_tpumcr3; + ushort tpu_isdr; + ushort tpu_iscr; + char res1[208]; + char tpu[16][16]; + char res2[512]; +} tpu5xx_t; + +/* QADC +*/ +typedef struct qadc { + ushort qadc_64mcr; + ushort qadc_64test; + ushort qadc_64int; + u_char qadc_portqa; + u_char qadc_portqb; + ushort qadc_ddrqa; + ushort qadc_qacr0; + ushort qadc_qacr1; + ushort qadc_qacr2; + ushort qadc_qasr0; + ushort qadc_qasr1; + char res1[492]; + /* command convertion word table */ + ushort qadc_ccw[64]; + /* result word table, unsigned right justified */ + ushort qadc_rjurr[64]; + /* result word table, signed left justified */ + ushort qadc_ljsrr[64]; + /* result word table, unsigned left justified */ + ushort qadc_ljurr[64]; +} qadc5xx_t; + +/* QSMCM +*/ +typedef struct qsmcm { + ushort qsmcm_qsmcr; + ushort qsmcm_qtest; + ushort qsmcm_qdsci_il; + ushort qsmcm_qspi_il; + ushort qsmcm_scc1r0; + ushort qsmcm_scc1r1; + ushort qsmcm_sc1sr; + ushort qsmcm_sc1dr; + char res1[2]; + char res2[2]; + ushort qsmcm_portqs; + u_char qsmcm_pqspar; + u_char qsmcm_ddrqs; + ushort qsmcm_spcr0; + ushort qsmcm_spcr1; + ushort qsmcm_spcr2; + u_char qsmcm_spcr3; + u_char qsmcm_spsr; + ushort qsmcm_scc2r0; + ushort qsmcm_scc2r1; + ushort qsmcm_sc2sr; + ushort qsmcm_sc2dr; + ushort qsmcm_qsci1cr; + ushort qsmcm_qsci1sr; + ushort qsmcm_sctq[16]; + ushort qsmcm_scrq[16]; + char res3[212]; + ushort qsmcm_recram[32]; + ushort qsmcm_tranram[32]; + u_char qsmcm_comdram[32]; + char res[3616]; +} qsmcm5xx_t; + + +/* MIOS +*/ + +typedef struct mios { + ushort mios_mpwmsm0perr; /* mpwmsm0 */ + ushort mios_mpwmsm0pulr; + ushort mios_mpwmsm0cntr; + ushort mios_mpwmsm0scr; + ushort mios_mpwmsm1perr; /* mpwmsm1 */ + ushort mios_mpwmsm1pulr; + ushort mios_mpwmsm1cntr; + ushort mios_mpwmsm1scr; + ushort mios_mpwmsm2perr; /* mpwmsm2 */ + ushort mios_mpwmsm2pulr; + ushort mios_mpwmsm2cntr; + ushort mios_mpwmsm2scr; + ushort mios_mpwmsm3perr; /* mpwmsm3 */ + ushort mios_mpwmsm3pulr; + ushort mios_mpwmsm3cntr; + ushort mios_mpwmsm3scr; + char res1[16]; + ushort mios_mmcsm6cnt; /* mmcsm6 */ + ushort mios_mmcsm6mlr; + ushort mios_mmcsm6scrd, mmcsm6scr; + char res2[32]; + ushort mios_mdasm11ar; /* mdasm11 */ + ushort mios_mdasm11br; + ushort mios_mdasm11scrd, mdasm11scr; + ushort mios_mdasm12ar; /* mdasm12 */ + ushort mios_mdasm12br; + ushort mios_mdasm12scrd, mdasm12scr; + ushort mios_mdasm13ar; /* mdasm13 */ + ushort mios_mdasm13br; + ushort mios_mdasm13scrd, mdasm13scr; + ushort mios_mdasm14ar; /* mdasm14 */ + ushort mios_mdasm14br; + ushort mios_mdasm14scrd, mdasm14scr; + ushort mios_mdasm15ar; /* mdasm15 */ + ushort mios_mdasm15br; + ushort mios_mdasm15scrd, mdasm15scr; + ushort mios_mpwmsm16perr; /* mpwmsm16 */ + ushort mios_mpwmsm16pulr; + ushort mios_mpwmsm16cntr; + ushort mios_mpwmsm16scr; + ushort mios_mpwmsm17perr; /* mpwmsm17 */ + ushort mios_mpwmsm17pulr; + ushort mios_mpwmsm17cntr; + ushort mios_mpwmsm17scr; + ushort mios_mpwmsm18perr; /* mpwmsm18 */ + ushort mios_mpwmsm18pulr; + ushort mios_mpwmsm18cntr; + ushort mios_mpwmsm18scr; + ushort mios_mpwmsm19perr; /* mpwmsm19 */ + ushort mios_mpwmsm19pulr; + ushort mios_mpwmsm19cntr; + ushort mios_mpwmsm19scr; + char res3[16]; + ushort mios_mmcsm22cnt; /* mmcsm22 */ + ushort mios_mmcsm22mlr; + ushort mios_mmcsm22scrd, mmcsm22scr; + char res4[32]; + ushort mios_mdasm27ar; /* mdasm27 */ + ushort mios_mdasm27br; + ushort mios_mdasm27scrd, mdasm27scr; + ushort mios_mdasm28ar; /*mdasm28 */ + ushort mios_mdasm28br; + ushort mios_mdasm28scrd, mdasm28scr; + ushort mios_mdasm29ar; /* mdasm29 */ + ushort mios_mdasm29br; + ushort mios_mdasm29scrd, mdasm29scr; + ushort mios_mdasm30ar; /* mdasm30 */ + ushort mios_mdasm30br; + ushort mios_mdasm30scrd, mdasm30scr; + ushort mios_mdasm31ar; /* mdasm31 */ + ushort mios_mdasm31br; + ushort mios_mdasm31scrd, mdasm31scr; + ushort mios_mpiosm32dr; + ushort mios_mpiosm32ddr; + char res5[1788]; + ushort mios_mios1tpcr; + char mios_res13[2]; + ushort mios_mios1vnr; + ushort mios_mios1mcr; + char res6[12]; + ushort mios_res42z; + ushort mios_mcpsmscr; + char res7[1000]; + ushort mios_mios1sr0; + char res12[2]; + ushort mios_mios1er0; + ushort mios_mios1rpr0; + char res8[40]; + ushort mios_mios1lvl0; + char res9[14]; + ushort mios_mios1sr1; + char res10[2]; + ushort mios_mios1er1; + ushort mios_mios1rpr1; + char res11[40]; + ushort mios_mios1lvl1; + char res13[1038]; +} mios5xx_t; + +/* Toucan Module +*/ +typedef struct tcan { + ushort tcan_tcnmcr; + ushort tcan_cantcr; + ushort tcan_canicr; + u_char tcan_canctrl0; + u_char tcan_canctrl1; + u_char tcan_presdiv; + u_char tcan_canctrl2; + ushort tcan_timer; + char res1[4]; + ushort tcan_rxgmskhi; + ushort tcan_rxgmsklo; + ushort tcan_rx14mskhi; + ushort tcan_rx14msklo; + ushort tcan_rx15mskhi; + ushort tcan_rx15msklo; + char res2[4]; + ushort tcan_estat; + ushort tcan_imask; + ushort tcan_iflag; + u_char tcan_rxectr; + u_char tcan_txectr; + char res3[88]; + struct { + ushort scr; + ushort id_high; + ushort id_low; + u_char data[8]; + char res4[2]; + } tcan_mbuff[16]; + char res5[640]; +} tcan5xx_t; + +/* UIMB +*/ +typedef struct uimb { + uint uimb_umcr; + char res1[12]; + uint uimb_utstcreg; + char res2[12]; + uint uimb_uipend; +} uimb5xx_t; + + +/* Internal Memory Map MPC555 +*/ +typedef struct immap { + char res1[262144]; /* CMF Flash A 256 Kbytes */ + char res2[196608]; /* CMF Flash B 192 Kbytes */ + char res3[2670592]; /* Reserved for Flash */ + sysconf5xx_t im_siu_conf; /* SIU Configuration */ + memctl5xx_t im_memctl; /* Memory Controller */ + sit5xx_t im_sit; /* System Integration Timers */ + car5xx_t im_clkrst; /* Clocks and Reset */ + sitk5xx_t im_sitk; /* System Integration Timer Keys*/ + cark8xx_t im_clkrstk; /* Clocks and Resert Keys */ + fl5xx_t im_fla; /* Flash Module A */ + fl5xx_t im_flb; /* Flash Module B */ + char res4[14208]; /* Reserved for SIU */ + dprc5xx_t im_dprc; /* Dpram Control Register */ + char res5[8180]; /* Reserved */ + char dptram[6144]; /* Dptram */ + char res6[2048]; /* Reserved */ + tpu5xx_t im_tpua; /* Time Proessing Unit A */ + tpu5xx_t im_tpub; /* Time Processing Unit B */ + qadc5xx_t im_qadca; /* QADC A */ + qadc5xx_t im_qadcb; /* QADC B */ + qsmcm5xx_t im_qsmcm; /* SCI and SPI */ + mios5xx_t im_mios; /* MIOS */ + tcan5xx_t im_tcana; /* Toucan A */ + tcan5xx_t im_tcanb; /* Toucan B */ + char res7[1792]; /* Reserved */ + uimb5xx_t im_uimb; /* UIMB */ +} immap_t; + +#endif /* __IMMAP_5XX__ */ diff --git a/arch/ppc/include/asm/8xx_immap.h b/arch/ppc/include/asm/8xx_immap.h new file mode 100644 index 0000000..40679cb --- /dev/null +++ b/arch/ppc/include/asm/8xx_immap.h @@ -0,0 +1,511 @@ + +/* + * MPC8xx Internal Memory Map + * Copyright (c) 1997 Dan Malek (dmalek@jlc.net) + * + * The I/O on the MPC860 is comprised of blocks of special registers + * and the dual port ram for the Communication Processor Module. + * Within this space are functional units such as the SIU, memory + * controller, system timers, and other control functions. It is + * a combination that I found difficult to separate into logical + * functional files.....but anyone else is welcome to try. -- Dan + */ +#ifndef __IMMAP_8XX__ +#define __IMMAP_8XX__ + +/* System configuration registers. +*/ +typedef struct sys_conf { + uint sc_siumcr; + uint sc_sypcr; + uint sc_swt; + char res1[2]; + ushort sc_swsr; + uint sc_sipend; + uint sc_simask; + uint sc_siel; + uint sc_sivec; + uint sc_tesr; + char res2[0xc]; + uint sc_sdcr; + char res3[0x4c]; +} sysconf8xx_t; + +/* PCMCIA configuration registers. +*/ +typedef struct pcmcia_conf { + uint pcmc_pbr0; + uint pcmc_por0; + uint pcmc_pbr1; + uint pcmc_por1; + uint pcmc_pbr2; + uint pcmc_por2; + uint pcmc_pbr3; + uint pcmc_por3; + uint pcmc_pbr4; + uint pcmc_por4; + uint pcmc_pbr5; + uint pcmc_por5; + uint pcmc_pbr6; + uint pcmc_por6; + uint pcmc_pbr7; + uint pcmc_por7; + char res1[0x20]; + uint pcmc_pgcra; + uint pcmc_pgcrb; + uint pcmc_pscr; + char res2[4]; + uint pcmc_pipr; + char res3[4]; + uint pcmc_per; + char res4[4]; +} pcmconf8xx_t; + +/* Memory controller registers. +*/ +typedef struct mem_ctlr { + uint memc_br0; + uint memc_or0; + uint memc_br1; + uint memc_or1; + uint memc_br2; + uint memc_or2; + uint memc_br3; + uint memc_or3; + uint memc_br4; + uint memc_or4; + uint memc_br5; + uint memc_or5; + uint memc_br6; + uint memc_or6; + uint memc_br7; + uint memc_or7; + char res1[0x24]; + uint memc_mar; + uint memc_mcr; + char res2[4]; + uint memc_mamr; + uint memc_mbmr; + ushort memc_mstat; + ushort memc_mptpr; + uint memc_mdr; + char res3[0x80]; +} memctl8xx_t; + +/* System Integration Timers. +*/ +typedef struct sys_int_timers { + ushort sit_tbscr; + char res0[0x02]; + uint sit_tbreff0; + uint sit_tbreff1; + char res1[0x14]; + ushort sit_rtcsc; + char res2[0x02]; + uint sit_rtc; + uint sit_rtsec; + uint sit_rtcal; + char res3[0x10]; + ushort sit_piscr; + char res4[2]; + uint sit_pitc; + uint sit_pitr; + char res5[0x34]; +} sit8xx_t; + +#define TBSCR_TBIRQ_MASK ((ushort)0xff00) +#define TBSCR_REFA ((ushort)0x0080) +#define TBSCR_REFB ((ushort)0x0040) +#define TBSCR_REFAE ((ushort)0x0008) +#define TBSCR_REFBE ((ushort)0x0004) +#define TBSCR_TBF ((ushort)0x0002) +#define TBSCR_TBE ((ushort)0x0001) + +#define RTCSC_RTCIRQ_MASK ((ushort)0xff00) +#define RTCSC_SEC ((ushort)0x0080) +#define RTCSC_ALR ((ushort)0x0040) +#define RTCSC_38K ((ushort)0x0010) +#define RTCSC_SIE ((ushort)0x0008) +#define RTCSC_ALE ((ushort)0x0004) +#define RTCSC_RTF ((ushort)0x0002) +#define RTCSC_RTE ((ushort)0x0001) + +#define PISCR_PIRQ_MASK ((ushort)0xff00) +#define PISCR_PS ((ushort)0x0080) +#define PISCR_PIE ((ushort)0x0004) +#define PISCR_PTF ((ushort)0x0002) +#define PISCR_PTE ((ushort)0x0001) + +/* Clocks and Reset. +*/ +typedef struct clk_and_reset { + uint car_sccr; + uint car_plprcr; + uint car_rsr; + char res[0x74]; /* Reserved area */ +} car8xx_t; + +/* System Integration Timers keys. +*/ +typedef struct sitk { + uint sitk_tbscrk; + uint sitk_tbreff0k; + uint sitk_tbreff1k; + uint sitk_tbk; + char res1[0x10]; + uint sitk_rtcsck; + uint sitk_rtck; + uint sitk_rtseck; + uint sitk_rtcalk; + char res2[0x10]; + uint sitk_piscrk; + uint sitk_pitck; + char res3[0x38]; +} sitk8xx_t; + +/* Clocks and reset keys. +*/ +typedef struct cark { + uint cark_sccrk; + uint cark_plprcrk; + uint cark_rsrk; + char res[0x474]; +} cark8xx_t; + +/* The key to unlock registers maintained by keep-alive power. +*/ +#define KAPWR_KEY ((unsigned int)0x55ccaa33) + +/* Video interface. MPC823 Only. +*/ +typedef struct vid823 { + ushort vid_vccr; + ushort res1; + u_char vid_vsr; + u_char res2; + u_char vid_vcmr; + u_char res3; + uint vid_vbcb; + uint res4; + uint vid_vfcr0; + uint vid_vfaa0; + uint vid_vfba0; + uint vid_vfcr1; + uint vid_vfaa1; + uint vid_vfba1; + u_char res5[0x18]; +} vid823_t; + +/* LCD interface. 823 Only. +*/ +typedef struct lcd { + uint lcd_lccr; + uint lcd_lchcr; + uint lcd_lcvcr; + char res1[4]; + uint lcd_lcfaa; + uint lcd_lcfba; + char lcd_lcsr; + char res2[0x7]; +} lcd823_t; + +/* I2C +*/ +typedef struct i2c { + u_char i2c_i2mod; + char res1[3]; + u_char i2c_i2add; + char res2[3]; + u_char i2c_i2brg; + char res3[3]; + u_char i2c_i2com; + char res4[3]; + u_char i2c_i2cer; + char res5[3]; + u_char i2c_i2cmr; + char res6[0x8b]; +} i2c8xx_t; + +/* DMA control/status registers. +*/ +typedef struct sdma_csr { + char res1[4]; + uint sdma_sdar; + u_char sdma_sdsr; + char res3[3]; + u_char sdma_sdmr; + char res4[3]; + u_char sdma_idsr1; + char res5[3]; + u_char sdma_idmr1; + char res6[3]; + u_char sdma_idsr2; + char res7[3]; + u_char sdma_idmr2; + char res8[0x13]; +} sdma8xx_t; + +/* Communication Processor Module Interrupt Controller. +*/ +typedef struct cpm_ic { + ushort cpic_civr; + char res[0xe]; + uint cpic_cicr; + uint cpic_cipr; + uint cpic_cimr; + uint cpic_cisr; +} cpic8xx_t; + +/* Input/Output Port control/status registers. +*/ +typedef struct io_port { + ushort iop_padir; + ushort iop_papar; + ushort iop_paodr; + ushort iop_padat; + char res1[8]; + ushort iop_pcdir; + ushort iop_pcpar; + ushort iop_pcso; + ushort iop_pcdat; + ushort iop_pcint; + char res2[6]; + ushort iop_pddir; + ushort iop_pdpar; + char res3[2]; + ushort iop_pddat; + uint utmode; + char res4[4]; +} iop8xx_t; + +/* Communication Processor Module Timers +*/ +typedef struct cpm_timers { + ushort cpmt_tgcr; + char res1[0xe]; + ushort cpmt_tmr1; + ushort cpmt_tmr2; + ushort cpmt_trr1; + ushort cpmt_trr2; + ushort cpmt_tcr1; + ushort cpmt_tcr2; + ushort cpmt_tcn1; + ushort cpmt_tcn2; + ushort cpmt_tmr3; + ushort cpmt_tmr4; + ushort cpmt_trr3; + ushort cpmt_trr4; + ushort cpmt_tcr3; + ushort cpmt_tcr4; + ushort cpmt_tcn3; + ushort cpmt_tcn4; + ushort cpmt_ter1; + ushort cpmt_ter2; + ushort cpmt_ter3; + ushort cpmt_ter4; + char res2[8]; +} cpmtimer8xx_t; + +/* Finally, the Communication Processor stuff..... +*/ +typedef struct scc { /* Serial communication channels */ + uint scc_gsmrl; + uint scc_gsmrh; + ushort scc_psmr; + char res1[2]; + ushort scc_todr; + ushort scc_dsr; + ushort scc_scce; + char res2[2]; + ushort scc_sccm; + char res3; + u_char scc_sccs; + char res4[8]; +} scc_t; + +typedef struct smc { /* Serial management channels */ + char res1[2]; + ushort smc_smcmr; + char res2[2]; + u_char smc_smce; + char res3[3]; + u_char smc_smcm; + char res4[5]; +} smc_t; + +/* MPC860T Fast Ethernet Controller. It isn't part of the CPM, but + * it fits within the address space. + */ + +typedef struct fec { + uint fec_addr_low; /* lower 32 bits of station address */ + ushort fec_addr_high; /* upper 16 bits of station address */ + ushort res1; /* reserved */ + uint fec_hash_table_high; /* upper 32-bits of hash table */ + uint fec_hash_table_low; /* lower 32-bits of hash table */ + uint fec_r_des_start; /* beginning of Rx descriptor ring */ + uint fec_x_des_start; /* beginning of Tx descriptor ring */ + uint fec_r_buff_size; /* Rx buffer size */ + uint res2[9]; /* reserved */ + uint fec_ecntrl; /* ethernet control register */ + uint fec_ievent; /* interrupt event register */ + uint fec_imask; /* interrupt mask register */ + uint fec_ivec; /* interrupt level and vector status */ + uint fec_r_des_active; /* Rx ring updated flag */ + uint fec_x_des_active; /* Tx ring updated flag */ + uint res3[10]; /* reserved */ + uint fec_mii_data; /* MII data register */ + uint fec_mii_speed; /* MII speed control register */ + uint res4[17]; /* reserved */ + uint fec_r_bound; /* end of RAM (read-only) */ + uint fec_r_fstart; /* Rx FIFO start address */ + uint res5[6]; /* reserved */ + uint fec_x_fstart; /* Tx FIFO start address */ + uint res6[17]; /* reserved */ + uint fec_fun_code; /* fec SDMA function code */ + uint res7[3]; /* reserved */ + uint fec_r_cntrl; /* Rx control register */ + uint fec_r_hash; /* Rx hash register */ + uint res8[14]; /* reserved */ + uint fec_x_cntrl; /* Tx control register */ + uint res9[0x1e]; /* reserved */ +} fec_t; + +/* The FEC and LCD color map share the same address space.... + * I guess we will never see an 823T :-). + */ +union fec_lcd { + fec_t fl_un_fec; + u_char fl_un_cmap[0x200]; +}; + +typedef struct comm_proc { + /* General control and status registers. + */ + ushort cp_cpcr; + u_char res1[2]; + ushort cp_rccr; + u_char res2; + u_char cp_rmds; + u_char res3[4]; + ushort cp_cpmcr1; + ushort cp_cpmcr2; + ushort cp_cpmcr3; + ushort cp_cpmcr4; + u_char res4[2]; + ushort cp_rter; + u_char res5[2]; + ushort cp_rtmr; + u_char res6[0x14]; + + /* Baud rate generators. + */ + uint cp_brgc1; + uint cp_brgc2; + uint cp_brgc3; + uint cp_brgc4; + + /* Serial Communication Channels. + */ + scc_t cp_scc[4]; + + /* Serial Management Channels. + */ + smc_t cp_smc[2]; + + /* Serial Peripheral Interface. + */ + ushort cp_spmode; + u_char res7[4]; + u_char cp_spie; + u_char res8[3]; + u_char cp_spim; + u_char res9[2]; + u_char cp_spcom; + u_char res10[2]; + + /* Parallel Interface Port. + */ + u_char res11[2]; + ushort cp_pipc; + u_char res12[2]; + ushort cp_ptpr; + uint cp_pbdir; + uint cp_pbpar; + u_char res13[2]; + ushort cp_pbodr; + uint cp_pbdat; + + /* Port E - MPC87x/88x only. + */ + uint cp_pedir; + uint cp_pepar; + uint cp_peso; + uint cp_peodr; + uint cp_pedat; + + /* Communications Processor Timing Register - + Contains RMII Timing for the FECs on MPC87x/88x only. + */ + uint cp_cptr; + + /* Serial Interface and Time Slot Assignment. + */ + uint cp_simode; + u_char cp_sigmr; + u_char res15; + u_char cp_sistr; + u_char cp_sicmr; + u_char res16[4]; + uint cp_sicr; + uint cp_sirp; + u_char res17[0xc]; + + /* 256 bytes of MPC823 video controller RAM array. + */ + u_char cp_vcram[0x100]; + u_char cp_siram[0x200]; + + /* The fast ethernet controller is not really part of the CPM, + * but it resides in the address space. + * The LCD color map is also here. + */ + union fec_lcd fl_un; +#define cp_fec fl_un.fl_un_fec +#define lcd_cmap fl_un.fl_un_cmap + char res18[0xE00]; + + /* The MPC885 family has a second FEC here */ + fec_t cp_fec2; +#define cp_fec1 cp_fec /* consistency macro */ + + /* Dual Ported RAM follows. + * There are many different formats for this memory area + * depending upon the devices used and options chosen. + * Some processors don't have all of it populated. + */ + u_char cp_dpmem[0x1C00]; /* BD / Data / ucode */ + u_char cp_dparam[0x400]; /* Parameter RAM */ +} cpm8xx_t; + +/* Internal memory map. +*/ +typedef struct immap { + sysconf8xx_t im_siu_conf; /* SIU Configuration */ + pcmconf8xx_t im_pcmcia; /* PCMCIA Configuration */ + memctl8xx_t im_memctl; /* Memory Controller */ + sit8xx_t im_sit; /* System integration timers */ + car8xx_t im_clkrst; /* Clocks and reset */ + sitk8xx_t im_sitk; /* Sys int timer keys */ + cark8xx_t im_clkrstk; /* Clocks and reset keys */ + vid823_t im_vid; /* Video (823 only) */ + lcd823_t im_lcd; /* LCD (823 only) */ + i2c8xx_t im_i2c; /* I2C control/status */ + sdma8xx_t im_sdma; /* SDMA control/status */ + cpic8xx_t im_cpic; /* CPM Interrupt Controller */ + iop8xx_t im_ioport; /* IO Port control/status */ + cpmtimer8xx_t im_cpmtimer; /* CPM timers */ + cpm8xx_t im_cpm; /* Communication processor */ +} immap_t; + +#endif /* __IMMAP_8XX__ */ diff --git a/arch/ppc/include/asm/atomic.h b/arch/ppc/include/asm/atomic.h new file mode 100644 index 0000000..23f22df --- /dev/null +++ b/arch/ppc/include/asm/atomic.h @@ -0,0 +1,95 @@ +/* + * PowerPC atomic operations + */ + +#ifndef _ASM_PPC_ATOMIC_H_ +#define _ASM_PPC_ATOMIC_H_ + +#include <linux/config.h> + +#ifdef CONFIG_SMP +typedef struct { volatile int counter; } atomic_t; +#else +typedef struct { int counter; } atomic_t; +#endif + +#define ATOMIC_INIT(i) { (i) } + +#define atomic_read(v) ((v)->counter) +#define atomic_set(v,i) (((v)->counter) = (i)) + +extern void atomic_clear_mask(unsigned long mask, unsigned long *addr); +extern void atomic_set_mask(unsigned long mask, unsigned long *addr); + +extern __inline__ int atomic_add_return(int a, atomic_t *v) +{ + int t; + + __asm__ __volatile__("\n\ +1: lwarx %0,0,%3\n\ + add %0,%2,%0\n\ + stwcx. %0,0,%3\n\ + bne- 1b" + : "=&r" (t), "=m" (*v) + : "r" (a), "r" (v), "m" (*v) + : "cc"); + + return t; +} + +extern __inline__ int atomic_sub_return(int a, atomic_t *v) +{ + int t; + + __asm__ __volatile__("\n\ +1: lwarx %0,0,%3\n\ + subf %0,%2,%0\n\ + stwcx. %0,0,%3\n\ + bne- 1b" + : "=&r" (t), "=m" (*v) + : "r" (a), "r" (v), "m" (*v) + : "cc"); + + return t; +} + +extern __inline__ int atomic_inc_return(atomic_t *v) +{ + int t; + + __asm__ __volatile__("\n\ +1: lwarx %0,0,%2\n\ + addic %0,%0,1\n\ + stwcx. %0,0,%2\n\ + bne- 1b" + : "=&r" (t), "=m" (*v) + : "r" (v), "m" (*v) + : "cc"); + + return t; +} + +extern __inline__ int atomic_dec_return(atomic_t *v) +{ + int t; + + __asm__ __volatile__("\n\ +1: lwarx %0,0,%2\n\ + addic %0,%0,-1\n\ + stwcx. %0,0,%2\n\ + bne 1b" + : "=&r" (t), "=m" (*v) + : "r" (v), "m" (*v) + : "cc"); + + return t; +} + +#define atomic_add(a, v) ((void) atomic_add_return((a), (v))) +#define atomic_sub(a, v) ((void) atomic_sub_return((a), (v))) +#define atomic_sub_and_test(a, v) (atomic_sub_return((a), (v)) == 0) +#define atomic_inc(v) ((void) atomic_inc_return((v))) +#define atomic_dec(v) ((void) atomic_dec_return((v))) +#define atomic_dec_and_test(v) (atomic_dec_return((v)) == 0) + +#endif /* _ASM_PPC_ATOMIC_H_ */ diff --git a/arch/ppc/include/asm/bitops.h b/arch/ppc/include/asm/bitops.h new file mode 100644 index 0000000..adaf091 --- /dev/null +++ b/arch/ppc/include/asm/bitops.h @@ -0,0 +1,387 @@ +/* + * bitops.h: Bit string operations on the ppc + */ + +#ifndef _PPC_BITOPS_H +#define _PPC_BITOPS_H + +#include <linux/config.h> +#include <asm/byteorder.h> + +extern void set_bit(int nr, volatile void *addr); +extern void clear_bit(int nr, volatile void *addr); +extern void change_bit(int nr, volatile void *addr); +extern int test_and_set_bit(int nr, volatile void *addr); +extern int test_and_clear_bit(int nr, volatile void *addr); +extern int test_and_change_bit(int nr, volatile void *addr); + +/* + * Arguably these bit operations don't imply any memory barrier or + * SMP ordering, but in fact a lot of drivers expect them to imply + * both, since they do on x86 cpus. + */ +#ifdef CONFIG_SMP +#define SMP_WMB "eieio\n" +#define SMP_MB "\nsync" +#else +#define SMP_WMB +#define SMP_MB +#endif /* CONFIG_SMP */ + +#define __INLINE_BITOPS 1 + +#if __INLINE_BITOPS +/* + * These used to be if'd out here because using : "cc" as a constraint + * resulted in errors from egcs. Things may be OK with gcc-2.95. + */ +extern __inline__ void set_bit(int nr, volatile void * addr) +{ + unsigned long old; + unsigned long mask = 1 << (nr & 0x1f); + unsigned long *p = ((unsigned long *)addr) + (nr >> 5); + + __asm__ __volatile__(SMP_WMB "\ +1: lwarx %0,0,%3\n\ + or %0,%0,%2\n\ + stwcx. %0,0,%3\n\ + bne 1b" + SMP_MB + : "=&r" (old), "=m" (*p) + : "r" (mask), "r" (p), "m" (*p) + : "cc" ); +} + +extern __inline__ void clear_bit(int nr, volatile void *addr) +{ + unsigned long old; + unsigned long mask = 1 << (nr & 0x1f); + unsigned long *p = ((unsigned long *)addr) + (nr >> 5); + + __asm__ __volatile__(SMP_WMB "\ +1: lwarx %0,0,%3\n\ + andc %0,%0,%2\n\ + stwcx. %0,0,%3\n\ + bne 1b" + SMP_MB + : "=&r" (old), "=m" (*p) + : "r" (mask), "r" (p), "m" (*p) + : "cc"); +} + +extern __inline__ void change_bit(int nr, volatile void *addr) +{ + unsigned long old; + unsigned long mask = 1 << (nr & 0x1f); + unsigned long *p = ((unsigned long *)addr) + (nr >> 5); + + __asm__ __volatile__(SMP_WMB "\ +1: lwarx %0,0,%3\n\ + xor %0,%0,%2\n\ + stwcx. %0,0,%3\n\ + bne 1b" + SMP_MB + : "=&r" (old), "=m" (*p) + : "r" (mask), "r" (p), "m" (*p) + : "cc"); +} + +extern __inline__ int test_and_set_bit(int nr, volatile void *addr) +{ + unsigned int old, t; + unsigned int mask = 1 << (nr & 0x1f); + volatile unsigned int *p = ((volatile unsigned int *)addr) + (nr >> 5); + + __asm__ __volatile__(SMP_WMB "\ +1: lwarx %0,0,%4\n\ + or %1,%0,%3\n\ + stwcx. %1,0,%4\n\ + bne 1b" + SMP_MB + : "=&r" (old), "=&r" (t), "=m" (*p) + : "r" (mask), "r" (p), "m" (*p) + : "cc"); + + return (old & mask) != 0; +} + +extern __inline__ int test_and_clear_bit(int nr, volatile void *addr) +{ + unsigned int old, t; + unsigned int mask = 1 << (nr & 0x1f); + volatile unsigned int *p = ((volatile unsigned int *)addr) + (nr >> 5); + + __asm__ __volatile__(SMP_WMB "\ +1: lwarx %0,0,%4\n\ + andc %1,%0,%3\n\ + stwcx. %1,0,%4\n\ + bne 1b" + SMP_MB + : "=&r" (old), "=&r" (t), "=m" (*p) + : "r" (mask), "r" (p), "m" (*p) + : "cc"); + + return (old & mask) != 0; +} + +extern __inline__ int test_and_change_bit(int nr, volatile void *addr) +{ + unsigned int old, t; + unsigned int mask = 1 << (nr & 0x1f); + volatile unsigned int *p = ((volatile unsigned int *)addr) + (nr >> 5); + + __asm__ __volatile__(SMP_WMB "\ +1: lwarx %0,0,%4\n\ + xor %1,%0,%3\n\ + stwcx. %1,0,%4\n\ + bne 1b" + SMP_MB + : "=&r" (old), "=&r" (t), "=m" (*p) + : "r" (mask), "r" (p), "m" (*p) + : "cc"); + + return (old & mask) != 0; +} +#endif /* __INLINE_BITOPS */ + +extern __inline__ int test_bit(int nr, __const__ volatile void *addr) +{ + __const__ unsigned int *p = (__const__ unsigned int *) addr; + + return ((p[nr >> 5] >> (nr & 0x1f)) & 1) != 0; +} + +/* Return the bit position of the most significant 1 bit in a word */ +/* - the result is undefined when x == 0 */ +extern __inline__ int __ilog2(unsigned int x) +{ + int lz; + + asm ("cntlzw %0,%1" : "=r" (lz) : "r" (x)); + return 31 - lz; +} + +extern __inline__ int ffz(unsigned int x) +{ + if ((x = ~x) == 0) + return 32; + return __ilog2(x & -x); +} + +/* + * fls: find last (most-significant) bit set. + * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32. + * + * On powerpc, __ilog2(0) returns -1, but this is not safe in general + */ +static __inline__ int fls(unsigned int x) +{ + return __ilog2(x) + 1; +} +#define PLATFORM_FLS + +/** + * fls64 - find last set bit in a 64-bit word + * @x: the word to search + * + * This is defined in a similar way as the libc and compiler builtin + * ffsll, but returns the position of the most significant set bit. + * + * fls64(value) returns 0 if value is 0 or the position of the last + * set bit if value is nonzero. The last (most significant) bit is + * at position 64. + */ +#if BITS_PER_LONG == 32 +static inline int fls64(__u64 x) +{ + __u32 h = x >> 32; + if (h) + return fls(h) + 32; + return fls(x); +} +#elif BITS_PER_LONG == 64 +static inline int fls64(__u64 x) +{ + if (x == 0) + return 0; + return __ilog2(x) + 1; +} +#else +#error BITS_PER_LONG not 32 or 64 +#endif + +static inline int __ilog2_u64(u64 n) +{ + return fls64(n) - 1; +} + +static inline int ffs64(u64 x) +{ + return __ilog2_u64(x & -x) + 1ull; +} + +#ifdef __KERNEL__ + +/* + * ffs: find first bit set. This is defined the same way as + * the libc and compiler builtin ffs routines, therefore + * differs in spirit from the above ffz (man ffs). + */ +extern __inline__ int ffs(int x) +{ + return __ilog2(x & -x) + 1; +} +#define PLATFORM_FFS + +/* + * hweightN: returns the hamming weight (i.e. the number + * of bits set) of a N-bit word + */ + +#define hweight32(x) generic_hweight32(x) +#define hweight16(x) generic_hweight16(x) +#define hweight8(x) generic_hweight8(x) + +#endif /* __KERNEL__ */ + +/* + * This implementation of find_{first,next}_zero_bit was stolen from + * Linus' asm-alpha/bitops.h. + */ +#define find_first_zero_bit(addr, size) \ + find_next_zero_bit((addr), (size), 0) + +extern __inline__ unsigned long find_next_zero_bit(void * addr, + unsigned long size, unsigned long offset) +{ + unsigned int * p = ((unsigned int *) addr) + (offset >> 5); + unsigned int result = offset & ~31UL; + unsigned int tmp; + + if (offset >= size) + return size; + size -= result; + offset &= 31UL; + if (offset) { + tmp = *p++; + tmp |= ~0UL >> (32-offset); + if (size < 32) + goto found_first; + if (tmp != ~0U) + goto found_middle; + size -= 32; + result += 32; + } + while (size >= 32) { + if ((tmp = *p++) != ~0U) + goto found_middle; + result += 32; + size -= 32; + } + if (!size) + return result; + tmp = *p; +found_first: + tmp |= ~0UL << size; +found_middle: + return result + ffz(tmp); +} + + +#define _EXT2_HAVE_ASM_BITOPS_ + +#ifdef __KERNEL__ +/* + * test_and_{set,clear}_bit guarantee atomicity without + * disabling interrupts. + */ +#define ext2_set_bit(nr, addr) test_and_set_bit((nr) ^ 0x18, addr) +#define ext2_clear_bit(nr, addr) test_and_clear_bit((nr) ^ 0x18, addr) + +#else +extern __inline__ int ext2_set_bit(int nr, void * addr) +{ + int mask; + unsigned char *ADDR = (unsigned char *) addr; + int oldbit; + + ADDR += nr >> 3; + mask = 1 << (nr & 0x07); + oldbit = (*ADDR & mask) ? 1 : 0; + *ADDR |= mask; + return oldbit; +} + +extern __inline__ int ext2_clear_bit(int nr, void * addr) +{ + int mask; + unsigned char *ADDR = (unsigned char *) addr; + int oldbit; + + ADDR += nr >> 3; + mask = 1 << (nr & 0x07); + oldbit = (*ADDR & mask) ? 1 : 0; + *ADDR = *ADDR & ~mask; + return oldbit; +} +#endif /* __KERNEL__ */ + +extern __inline__ int ext2_test_bit(int nr, __const__ void * addr) +{ + __const__ unsigned char *ADDR = (__const__ unsigned char *) addr; + + return (ADDR[nr >> 3] >> (nr & 7)) & 1; +} + +/* + * This implementation of ext2_find_{first,next}_zero_bit was stolen from + * Linus' asm-alpha/bitops.h and modified for a big-endian machine. + */ + +#define ext2_find_first_zero_bit(addr, size) \ + ext2_find_next_zero_bit((addr), (size), 0) + +static __inline__ unsigned long ext2_find_next_zero_bit(void *addr, + unsigned long size, unsigned long offset) +{ + unsigned int *p = ((unsigned int *) addr) + (offset >> 5); + unsigned int result = offset & ~31UL; + unsigned int tmp; + + if (offset >= size) + return size; + size -= result; + offset &= 31UL; + if (offset) { + tmp = cpu_to_le32p(p++); + tmp |= ~0UL >> (32-offset); + if (size < 32) + goto found_first; + if (tmp != ~0U) + goto found_middle; + size -= 32; + result += 32; + } + while (size >= 32) { + if ((tmp = cpu_to_le32p(p++)) != ~0U) + goto found_middle; + result += 32; + size -= 32; + } + if (!size) + return result; + tmp = cpu_to_le32p(p); +found_first: + tmp |= ~0U << size; +found_middle: + return result + ffz(tmp); +} + +/* Bitmap functions for the minix filesystem. */ +#define minix_test_and_set_bit(nr,addr) ext2_set_bit(nr,addr) +#define minix_set_bit(nr,addr) ((void)ext2_set_bit(nr,addr)) +#define minix_test_and_clear_bit(nr,addr) ext2_clear_bit(nr,addr) +#define minix_test_bit(nr,addr) ext2_test_bit(nr,addr) +#define minix_find_first_zero_bit(addr,size) ext2_find_first_zero_bit(addr,size) + +#endif /* _PPC_BITOPS_H */ diff --git a/arch/ppc/include/asm/byteorder.h b/arch/ppc/include/asm/byteorder.h new file mode 100644 index 0000000..3f5bcf6 --- /dev/null +++ b/arch/ppc/include/asm/byteorder.h @@ -0,0 +1,84 @@ +#ifndef _PPC_BYTEORDER_H +#define _PPC_BYTEORDER_H + +#include <asm/types.h> + +#ifdef __GNUC__ + +extern __inline__ unsigned ld_le16(const volatile unsigned short *addr) +{ + unsigned val; + + __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); + return val; +} + +extern __inline__ void st_le16(volatile unsigned short *addr, const unsigned val) +{ + __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); +} + +extern __inline__ unsigned ld_le32(const volatile unsigned *addr) +{ + unsigned val; + + __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); + return val; +} + +extern __inline__ void st_le32(volatile unsigned *addr, const unsigned val) +{ + __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); +} + +/* alas, egcs sounds like it has a bug in this code that doesn't use the + inline asm correctly, and can cause file corruption. Until I hear that + it's fixed, I can live without the extra speed. I hope. */ +#if !(__GNUC__ >= 2 && __GNUC_MINOR__ >= 90) +#if 0 +# define __arch_swab16(x) ld_le16(&x) +# define __arch_swab32(x) ld_le32(&x) +#else +static __inline__ __attribute__((const)) __u16 ___arch__swab16(__u16 value) +{ + __u16 result; + + __asm__("rlwimi %0,%1,8,16,23" + : "=r" (result) + : "r" (value), "0" (value >> 8)); + return result; +} + +static __inline__ __attribute__((const)) __u32 ___arch__swab32(__u32 value) +{ + __u32 result; + + __asm__("rlwimi %0,%1,24,16,23\n\t" + "rlwimi %0,%1,8,8,15\n\t" + "rlwimi %0,%1,24,0,7" + : "=r" (result) + : "r" (value), "0" (value >> 24)); + return result; +} +#define __arch__swab32(x) ___arch__swab32(x) +#define __arch__swab16(x) ___arch__swab16(x) +#endif /* 0 */ + +#endif + +/* The same, but returns converted value from the location pointer by addr. */ +#define __arch__swab16p(addr) ld_le16(addr) +#define __arch__swab32p(addr) ld_le32(addr) + +/* The same, but do the conversion in situ, ie. put the value back to addr. */ +#define __arch__swab16s(addr) st_le16(addr,*addr) +#define __arch__swab32s(addr) st_le32(addr,*addr) + +#endif /* __GNUC__ */ + +#if defined(__GNUC__) && !defined(__STRICT_ANSI__) +#define __BYTEORDER_HAS_U64__ +#endif +#include <linux/byteorder/big_endian.h> + +#endif /* _PPC_BYTEORDER_H */ diff --git a/arch/ppc/include/asm/cache.h b/arch/ppc/include/asm/cache.h new file mode 100644 index 0000000..53e8d05 --- /dev/null +++ b/arch/ppc/include/asm/cache.h @@ -0,0 +1,101 @@ +/* + * include/asm-ppc/cache.h + */ +#ifndef __ARCH_PPC_CACHE_H +#define __ARCH_PPC_CACHE_H + +#include <linux/config.h> +#include <asm/processor.h> + +/* bytes per L1 cache line */ +#if defined(CONFIG_8xx) || defined(CONFIG_IOP480) +#define L1_CACHE_SHIFT 4 +#elif defined(CONFIG_PPC64BRIDGE) +#define L1_CACHE_SHIFT 7 +#elif defined(CONFIG_E500MC) +#define L1_CACHE_SHIFT 6 +#else +#define L1_CACHE_SHIFT 5 +#endif + +#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) + +/* + * For compatibility reasons support the CONFIG_SYS_CACHELINE_SIZE too + */ +#ifndef CONFIG_SYS_CACHELINE_SIZE +#define CONFIG_SYS_CACHELINE_SIZE L1_CACHE_BYTES +#endif + +#define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1)) +#define L1_CACHE_PAGES 8 + +#define SMP_CACHE_BYTES L1_CACHE_BYTES + +#ifdef MODULE +#define __cacheline_aligned __attribute__((__aligned__(L1_CACHE_BYTES))) +#else +#define __cacheline_aligned \ + __attribute__((__aligned__(L1_CACHE_BYTES), \ + __section__(".data.cacheline_aligned"))) +#endif + +#if defined(__KERNEL__) && !defined(__ASSEMBLY__) +extern void flush_dcache_range(unsigned long start, unsigned long stop); +extern void clean_dcache_range(unsigned long start, unsigned long stop); +extern void invalidate_dcache_range(unsigned long start, unsigned long stop); +extern void flush_dcache(void); +extern void invalidate_dcache(void); +extern void invalidate_icache(void); +#ifdef CONFIG_SYS_INIT_RAM_LOCK +extern void unlock_ram_in_cache(void); +#endif /* CONFIG_SYS_INIT_RAM_LOCK */ +#endif /* __ASSEMBLY__ */ + +/* prep registers for L2 */ +#define CACHECRBA 0x80000823 /* Cache configuration register address */ +#define L2CACHE_MASK 0x03 /* Mask for 2 L2 Cache bits */ +#define L2CACHE_512KB 0x00 /* 512KB */ +#define L2CACHE_256KB 0x01 /* 256KB */ +#define L2CACHE_1MB 0x02 /* 1MB */ +#define L2CACHE_NONE 0x03 /* NONE */ +#define L2CACHE_PARITY 0x08 /* Mask for L2 Cache Parity Protected bit */ + +#ifdef CONFIG_8xx +/* Cache control on the MPC8xx is provided through some additional + * special purpose registers. + */ +#define IC_CST 560 /* Instruction cache control/status */ +#define IC_ADR 561 /* Address needed for some commands */ +#define IC_DAT 562 /* Read-only data register */ +#define DC_CST 568 /* Data cache control/status */ +#define DC_ADR 569 /* Address needed for some commands */ +#define DC_DAT 570 /* Read-only data register */ + +/* Commands. Only the first few are available to the instruction cache. +*/ +#define IDC_ENABLE 0x02000000 /* Cache enable */ +#define IDC_DISABLE 0x04000000 /* Cache disable */ +#define IDC_LDLCK 0x06000000 /* Load and lock */ +#define IDC_UNLINE 0x08000000 /* Unlock line */ +#define IDC_UNALL 0x0a000000 /* Unlock all */ +#define IDC_INVALL 0x0c000000 /* Invalidate all */ + +#define DC_FLINE 0x0e000000 /* Flush data cache line */ +#define DC_SFWT 0x01000000 /* Set forced writethrough mode */ +#define DC_CFWT 0x03000000 /* Clear forced writethrough mode */ +#define DC_SLES 0x05000000 /* Set little endian swap mode */ +#define DC_CLES 0x07000000 /* Clear little endian swap mode */ + +/* Status. +*/ +#define IDC_ENABLED 0x80000000 /* Cache is enabled */ +#define IDC_CERR1 0x00200000 /* Cache error 1 */ +#define IDC_CERR2 0x00100000 /* Cache error 2 */ +#define IDC_CERR3 0x00080000 /* Cache error 3 */ + +#define DC_DFWT 0x40000000 /* Data cache is forced write through */ +#define DC_LES 0x20000000 /* Caches are little endian mode */ +#endif /* CONFIG_8xx */ + +#endif diff --git a/arch/ppc/include/asm/config.h b/arch/ppc/include/asm/config.h new file mode 100644 index 0000000..fc3facb --- /dev/null +++ b/arch/ppc/include/asm/config.h @@ -0,0 +1,79 @@ +/* + * Copyright 2009-2010 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +#ifndef _ASM_CONFIG_H_ +#define _ASM_CONFIG_H_ + +#define CONFIG_LMB + +#ifndef CONFIG_MAX_MEM_MAPPED +#if defined(CONFIG_4xx) || defined(CONFIG_E500) || defined(CONFIG_MPC86xx) +#define CONFIG_MAX_MEM_MAPPED ((phys_size_t)2 << 30) +#else +#define CONFIG_MAX_MEM_MAPPED (256 << 20) +#endif +#endif + +/* Check if boards need to enable FSL DMA engine for SDRAM init */ +#if !defined(CONFIG_FSL_DMA) && defined(CONFIG_DDR_ECC) +#if (defined(CONFIG_MPC83xx) && defined(CONFIG_DDR_ECC_INIT_VIA_DMA)) || \ + ((defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)) && \ + !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)) +#define CONFIG_FSL_DMA +#endif +#endif + +#if defined(CONFIG_MPC8572) || defined(CONFIG_P1020) || \ + defined(CONFIG_P1021) || defined(CONFIG_P1022) || \ + defined(CONFIG_P2020) || defined(CONFIG_MPC8641) +#define CONFIG_MAX_CPUS 2 +#elif defined(CONFIG_PPC_P4080) +#define CONFIG_MAX_CPUS 8 +#else +#define CONFIG_MAX_CPUS 1 +#endif + +/* + * Provide a default boot page translation virtual address that lines up with + * Freescale's default e500 reset page. + */ +#if (defined(CONFIG_E500) && defined(CONFIG_MP)) +#ifndef CONFIG_BPTR_VIRT_ADDR +#define CONFIG_BPTR_VIRT_ADDR 0xfffff000 +#endif +#endif + +/* Enable TSEC2.0 for the platforms that have it if we are using TSEC */ +#if defined(CONFIG_TSEC_ENET) && \ + (defined(CONFIG_P1020) || defined(CONFIG_P1011)) +#define CONFIG_TSECV2 +#endif + +/* Number of TLB CAM entries we have on FSL Book-E chips */ +#if defined(CONFIG_E500MC) +#define CONFIG_SYS_NUM_TLBCAMS 64 +#elif defined(CONFIG_E500) +#define CONFIG_SYS_NUM_TLBCAMS 16 +#endif + +/* Relocation to SDRAM works on all PPC boards */ +#define CONFIG_RELOC_FIXUP_WORKS + +#endif /* _ASM_CONFIG_H_ */ diff --git a/arch/ppc/include/asm/cpm_8260.h b/arch/ppc/include/asm/cpm_8260.h new file mode 100644 index 0000000..8302404 --- /dev/null +++ b/arch/ppc/include/asm/cpm_8260.h @@ -0,0 +1,796 @@ + +/* + * MPC8260 Communication Processor Module. + * Copyright (c) 1999 Dan Malek (dmalek@jlc.net) + * + * This file contains structures and information for the communication + * processor channels found in the dual port RAM or parameter RAM. + * All CPM control and status is available through the MPC8260 internal + * memory map. See immap.h for details. + */ +#ifndef __CPM_82XX__ +#define __CPM_82XX__ + +#include <asm/immap_8260.h> + +/* CPM Command register. +*/ +#define CPM_CR_RST ((uint)0x80000000) +#define CPM_CR_PAGE ((uint)0x7c000000) +#define CPM_CR_SBLOCK ((uint)0x03e00000) +#define CPM_CR_FLG ((uint)0x00010000) +#define CPM_CR_MCN ((uint)0x00003fc0) +#define CPM_CR_OPCODE ((uint)0x0000000f) + +/* Device sub-block and page codes. +*/ +#define CPM_CR_SCC1_SBLOCK (0x04) +#define CPM_CR_SCC2_SBLOCK (0x05) +#define CPM_CR_SCC3_SBLOCK (0x06) +#define CPM_CR_SCC4_SBLOCK (0x07) +#define CPM_CR_SMC1_SBLOCK (0x08) +#define CPM_CR_SMC2_SBLOCK (0x09) +#define CPM_CR_SPI_SBLOCK (0x0a) +#define CPM_CR_I2C_SBLOCK (0x0b) +#define CPM_CR_TIMER_SBLOCK (0x0f) +#define CPM_CR_RAND_SBLOCK (0x0e) +#define CPM_CR_FCC1_SBLOCK (0x10) +#define CPM_CR_FCC2_SBLOCK (0x11) +#define CPM_CR_FCC3_SBLOCK (0x12) +#define CPM_CR_IDMA1_SBLOCK (0x14) +#define CPM_CR_IDMA2_SBLOCK (0x15) +#define CPM_CR_IDMA3_SBLOCK (0x16) +#define CPM_CR_IDMA4_SBLOCK (0x17) +#define CPM_CR_MCC1_SBLOCK (0x1c) + +#define CPM_CR_SCC1_PAGE (0x00) +#define CPM_CR_SCC2_PAGE (0x01) +#define CPM_CR_SCC3_PAGE (0x02) +#define CPM_CR_SCC4_PAGE (0x03) +#define CPM_CR_SMC1_PAGE (0x07) +#define CPM_CR_SMC2_PAGE (0x08) +#define CPM_CR_SPI_PAGE (0x09) +#define CPM_CR_I2C_PAGE (0x0a) +#define CPM_CR_TIMER_PAGE (0x0a) +#define CPM_CR_RAND_PAGE (0x0a) +#define CPM_CR_FCC1_PAGE (0x04) +#define CPM_CR_FCC2_PAGE (0x05) +#define CPM_CR_FCC3_PAGE (0x06) +#define CPM_CR_IDMA1_PAGE (0x07) +#define CPM_CR_IDMA2_PAGE (0x08) +#define CPM_CR_IDMA3_PAGE (0x09) +#define CPM_CR_IDMA4_PAGE (0x0a) +#define CPM_CR_MCC1_PAGE (0x07) +#define CPM_CR_MCC2_PAGE (0x08) + +/* Some opcodes (there are more...later) +*/ +#define CPM_CR_INIT_TRX ((ushort)0x0000) +#define CPM_CR_INIT_RX ((ushort)0x0001) +#define CPM_CR_INIT_TX ((ushort)0x0002) +#define CPM_CR_HUNT_MODE ((ushort)0x0003) +#define CPM_CR_STOP_TX ((ushort)0x0004) +#define CPM_CR_RESTART_TX ((ushort)0x0006) +#define CPM_CR_SET_GADDR ((ushort)0x0008) + +#define mk_cr_cmd(PG, SBC, MCN, OP) \ + ((PG << 26) | (SBC << 21) | (MCN << 6) | OP) + +/* Dual Port RAM addresses. The first 16K is available for almost + * any CPM use, so we put the BDs there. The first 128 bytes are + * used for SMC1 and SMC2 parameter RAM, so we start allocating + * BDs above that. All of this must change when we start + * downloading RAM microcode. + */ +#define CPM_DATAONLY_BASE ((uint)128) +#define CPM_DP_NOSPACE ((uint)0x7fffffff) +#ifndef CONFIG_MPC8272_FAMILY +#define CPM_DATAONLY_SIZE ((uint)(8 * 1024) - CPM_DATAONLY_BASE) +#define CPM_FCC_SPECIAL_BASE ((uint)0x0000b000) +#else /* 8247/48/71/72 */ +#define CPM_DATAONLY_SIZE ((uint)(4 * 1024) - CPM_DATAONLY_BASE) +#define CPM_FCC_SPECIAL_BASE ((uint)0x00009000) +#endif /* !CONFIG_MPC8272_FAMILY */ + +/* The number of pages of host memory we allocate for CPM. This is + * done early in kernel initialization to get physically contiguous + * pages. + */ +#define NUM_CPM_HOST_PAGES 2 + + +/* Export the base address of the communication processor registers + * and dual port ram. + */ +extern cpm8260_t *cpmp; /* Pointer to comm processor */ +uint m8260_cpm_dpalloc(uint size, uint align); +uint m8260_cpm_hostalloc(uint size, uint align); +void m8260_cpm_setbrg(uint brg, uint rate); +void m8260_cpm_fastbrg(uint brg, uint rate, int div16); +void m8260_cpm_extcbrg(uint brg, uint rate, uint extclk, int pinsel); + +/* Buffer descriptors used by many of the CPM protocols. +*/ +typedef struct cpm_buf_desc { + ushort cbd_sc; /* Status and Control */ + ushort cbd_datlen; /* Data length in buffer */ + uint cbd_bufaddr; /* Buffer address in host memory */ +} cbd_t; + +#define BD_SC_EMPTY ((ushort)0x8000) /* Recieve is empty */ +#define BD_SC_READY ((ushort)0x8000) /* Transmit is ready */ +#define BD_SC_WRAP ((ushort)0x2000) /* Last buffer descriptor */ +#define BD_SC_INTRPT ((ushort)0x1000) /* Interrupt on change */ +#define BD_SC_LAST ((ushort)0x0800) /* Last buffer in frame */ +#define BD_SC_CM ((ushort)0x0200) /* Continous mode */ +#define BD_SC_ID ((ushort)0x0100) /* Rec'd too many idles */ +#define BD_SC_P ((ushort)0x0100) /* xmt preamble */ +#define BD_SC_BR ((ushort)0x0020) /* Break received */ +#define BD_SC_FR ((ushort)0x0010) /* Framing error */ +#define BD_SC_PR ((ushort)0x0008) /* Parity error */ +#define BD_SC_OV ((ushort)0x0002) /* Overrun */ +#define BD_SC_CD ((ushort)0x0001) /* ?? */ + +/* Function code bits, usually generic to devices. +*/ +#define CPMFCR_GBL ((u_char)0x20) /* Set memory snooping */ +#define CPMFCR_EB ((u_char)0x10) /* Set big endian byte order */ +#define CPMFCR_TC2 ((u_char)0x04) /* Transfer code 2 value */ +#define CPMFCR_DTB ((u_char)0x02) /* Use local bus for data when set */ +#define CPMFCR_BDB ((u_char)0x01) /* Use local bus for BD when set */ + +/* Parameter RAM offsets from the base. +*/ +#ifndef CONFIG_SYS_CPM_POST_WORD_ADDR +#define CPM_POST_WORD_ADDR 0x80FC /* steal a long at the end of SCC1 */ +#else +#define CPM_POST_WORD_ADDR CONFIG_SYS_CPM_POST_WORD_ADDR +#endif + +#ifndef CONFIG_SYS_CPM_BOOTCOUNT_ADDR +#define CPM_BOOTCOUNT_ADDR (CPM_POST_WORD_ADDR - 2*sizeof(ulong)) +#else +#define CPM_BOOTCOUNT_ADDR CONFIG_SYS_CPM_BOOTCOUNT_ADDR +#endif + +#define PROFF_SCC1 ((uint)0x8000) +#define PROFF_SCC2 ((uint)0x8100) +#define PROFF_SCC3 ((uint)0x8200) +#define PROFF_SCC4 ((uint)0x8300) +#define PROFF_FCC1 ((uint)0x8400) +#define PROFF_FCC2 ((uint)0x8500) +#define PROFF_FCC3 ((uint)0x8600) +#define PROFF_MCC1 ((uint)0x8700) +#define PROFF_SMC1_BASE ((uint)0x87fc) +#define PROFF_IDMA1_BASE ((uint)0x87fe) +#define PROFF_MCC2 ((uint)0x8800) +#define PROFF_SMC2_BASE ((uint)0x88fc) +#define PROFF_IDMA2_BASE ((uint)0x88fe) +#define PROFF_SPI_BASE ((uint)0x89fc) +#define PROFF_IDMA3_BASE ((uint)0x89fe) +#define PROFF_TIMERS ((uint)0x8ae0) +#define PROFF_REVNUM ((uint)0x8af0) +#define PROFF_RAND ((uint)0x8af8) +#define PROFF_I2C_BASE ((uint)0x8afc) +#define PROFF_IDMA4_BASE ((uint)0x8afe) + +/* The SMCs are relocated to any of the first eight DPRAM pages. + * We will fix these at the first locations of DPRAM, until we + * get some microcode patches :-). + * The parameter ram space for the SMCs is fifty-some bytes, and + * they are required to start on a 64 byte boundary. + */ +#define PROFF_SMC1 (0) +#define PROFF_SMC2 (64) +#define PROFF_SPI ((16*1024) - 128) + +/* Define enough so I can at least use the serial port as a UART. + */ +typedef struct smc_uart { + ushort smc_rbase; /* Rx Buffer descriptor base address */ + ushort smc_tbase; /* Tx Buffer descriptor base address */ + u_char smc_rfcr; /* Rx function code */ + u_char smc_tfcr; /* Tx function code */ + ushort smc_mrblr; /* Max receive buffer length */ + uint smc_rstate; /* Internal */ + uint smc_idp; /* Internal */ + ushort smc_rbptr; /* Internal */ + ushort smc_ibc; /* Internal */ + uint smc_rxtmp; /* Internal */ + uint smc_tstate; /* Internal */ + uint smc_tdp; /* Internal */ + ushort smc_tbptr; /* Internal */ + ushort smc_tbc; /* Internal */ + uint smc_txtmp; /* Internal */ + ushort smc_maxidl; /* Maximum idle characters */ + ushort smc_tmpidl; /* Temporary idle counter */ + ushort smc_brklen; /* Last received break length */ + ushort smc_brkec; /* rcv'd break condition counter */ + ushort smc_brkcr; /* xmt break count register */ + ushort smc_rmask; /* Temporary bit mask */ + uint smc_stmp; /* SDMA Temp */ +} smc_uart_t; + +/* SMC uart mode register (Internal memory map). +*/ +#define SMCMR_REN ((ushort)0x0001) +#define SMCMR_TEN ((ushort)0x0002) +#define SMCMR_DM ((ushort)0x000c) +#define SMCMR_SM_GCI ((ushort)0x0000) +#define SMCMR_SM_UART ((ushort)0x0020) +#define SMCMR_SM_TRANS ((ushort)0x0030) +#define SMCMR_SM_MASK ((ushort)0x0030) +#define SMCMR_PM_EVEN ((ushort)0x0100) /* Even parity, else odd */ +#define SMCMR_REVD SMCMR_PM_EVEN +#define SMCMR_PEN ((ushort)0x0200) /* Parity enable */ +#define SMCMR_BS SMCMR_PEN +#define SMCMR_SL ((ushort)0x0400) /* Two stops, else one */ +#define SMCR_CLEN_MASK ((ushort)0x7800) /* Character length */ +#define smcr_mk_clen(C) (((C) << 11) & SMCR_CLEN_MASK) + +/* SMC Event and Mask register. +*/ +#define SMCM_TXE ((unsigned char)0x10) +#define SMCM_BSY ((unsigned char)0x04) +#define SMCM_TX ((unsigned char)0x02) +#define SMCM_RX ((unsigned char)0x01) + +/* Baud rate generators. +*/ +#define CPM_BRG_RST ((uint)0x00020000) +#define CPM_BRG_EN ((uint)0x00010000) +#define CPM_BRG_EXTC_INT ((uint)0x00000000) +#define CPM_BRG_EXTC_CLK3_9 ((uint)0x00004000) +#define CPM_BRG_EXTC_CLK5_15 ((uint)0x00008000) +#define CPM_BRG_ATB ((uint)0x00002000) +#define CPM_BRG_CD_MASK ((uint)0x00001ffe) +#define CPM_BRG_DIV16 ((uint)0x00000001) + +/* SCCs. +*/ +#define SCC_GSMRH_IRP ((uint)0x00040000) +#define SCC_GSMRH_GDE ((uint)0x00010000) +#define SCC_GSMRH_TCRC_CCITT ((uint)0x00008000) +#define SCC_GSMRH_TCRC_BISYNC ((uint)0x00004000) +#define SCC_GSMRH_TCRC_HDLC ((uint)0x00000000) +#define SCC_GSMRH_REVD ((uint)0x00002000) +#define SCC_GSMRH_TRX ((uint)0x00001000) +#define SCC_GSMRH_TTX ((uint)0x00000800) +#define SCC_GSMRH_CDP ((uint)0x00000400) +#define SCC_GSMRH_CTSP ((uint)0x00000200) +#define SCC_GSMRH_CDS ((uint)0x00000100) +#define SCC_GSMRH_CTSS ((uint)0x00000080) +#define SCC_GSMRH_TFL ((uint)0x00000040) +#define SCC_GSMRH_RFW ((uint)0x00000020) +#define SCC_GSMRH_TXSY ((uint)0x00000010) +#define SCC_GSMRH_SYNL16 ((uint)0x0000000c) +#define SCC_GSMRH_SYNL8 ((uint)0x00000008) +#define SCC_GSMRH_SYNL4 ((uint)0x00000004) +#define SCC_GSMRH_RTSM ((uint)0x00000002) +#define SCC_GSMRH_RSYN ((uint)0x00000001) + +#define SCC_GSMRL_SIR ((uint)0x80000000) /* SCC2 only */ +#define SCC_GSMRL_EDGE_NONE ((uint)0x60000000) +#define SCC_GSMRL_EDGE_NEG ((uint)0x40000000) +#define SCC_GSMRL_EDGE_POS ((uint)0x20000000) +#define SCC_GSMRL_EDGE_BOTH ((uint)0x00000000) +#define SCC_GSMRL_TCI ((uint)0x10000000) +#define SCC_GSMRL_TSNC_3 ((uint)0x0c000000) +#define SCC_GSMRL_TSNC_4 ((uint)0x08000000) +#define SCC_GSMRL_TSNC_14 ((uint)0x04000000) +#define SCC_GSMRL_TSNC_INF ((uint)0x00000000) +#define SCC_GSMRL_RINV ((uint)0x02000000) +#define SCC_GSMRL_TINV ((uint)0x01000000) +#define SCC_GSMRL_TPL_128 ((uint)0x00c00000) +#define SCC_GSMRL_TPL_64 ((uint)0x00a00000) +#define SCC_GSMRL_TPL_48 ((uint)0x00800000) +#define SCC_GSMRL_TPL_32 ((uint)0x00600000) +#define SCC_GSMRL_TPL_16 ((uint)0x00400000) +#define SCC_GSMRL_TPL_8 ((uint)0x00200000) +#define SCC_GSMRL_TPL_NONE ((uint)0x00000000) +#define SCC_GSMRL_TPP_ALL1 ((uint)0x00180000) +#define SCC_GSMRL_TPP_01 ((uint)0x00100000) +#define SCC_GSMRL_TPP_10 ((uint)0x00080000) +#define SCC_GSMRL_TPP_ZEROS ((uint)0x00000000) +#define SCC_GSMRL_TEND ((uint)0x00040000) +#define SCC_GSMRL_TDCR_32 ((uint)0x00030000) +#define SCC_GSMRL_TDCR_16 ((uint)0x00020000) +#define SCC_GSMRL_TDCR_8 ((uint)0x00010000) +#define SCC_GSMRL_TDCR_1 ((uint)0x00000000) +#define SCC_GSMRL_RDCR_32 ((uint)0x0000c000) +#define SCC_GSMRL_RDCR_16 ((uint)0x00008000) +#define SCC_GSMRL_RDCR_8 ((uint)0x00004000) +#define SCC_GSMRL_RDCR_1 ((uint)0x00000000) +#define SCC_GSMRL_RENC_DFMAN ((uint)0x00003000) +#define SCC_GSMRL_RENC_MANCH ((uint)0x00002000) +#define SCC_GSMRL_RENC_FM0 ((uint)0x00001000) +#define SCC_GSMRL_RENC_NRZI ((uint)0x00000800) +#define SCC_GSMRL_RENC_NRZ ((uint)0x00000000) +#define SCC_GSMRL_TENC_DFMAN ((uint)0x00000600) +#define SCC_GSMRL_TENC_MANCH ((uint)0x00000400) +#define SCC_GSMRL_TENC_FM0 ((uint)0x00000200) +#define SCC_GSMRL_TENC_NRZI ((uint)0x00000100) +#define SCC_GSMRL_TENC_NRZ ((uint)0x00000000) +#define SCC_GSMRL_DIAG_LE ((uint)0x000000c0) /* Loop and echo */ +#define SCC_GSMRL_DIAG_ECHO ((uint)0x00000080) +#define SCC_GSMRL_DIAG_LOOP ((uint)0x00000040) +#define SCC_GSMRL_DIAG_NORM ((uint)0x00000000) +#define SCC_GSMRL_ENR ((uint)0x00000020) +#define SCC_GSMRL_ENT ((uint)0x00000010) +#define SCC_GSMRL_MODE_ENET ((uint)0x0000000c) +#define SCC_GSMRL_MODE_DDCMP ((uint)0x00000009) +#define SCC_GSMRL_MODE_BISYNC ((uint)0x00000008) +#define SCC_GSMRL_MODE_V14 ((uint)0x00000007) +#define SCC_GSMRL_MODE_AHDLC ((uint)0x00000006) +#define SCC_GSMRL_MODE_PROFIBUS ((uint)0x00000005) +#define SCC_GSMRL_MODE_UART ((uint)0x00000004) +#define SCC_GSMRL_MODE_SS7 ((uint)0x00000003) +#define SCC_GSMRL_MODE_ATALK ((uint)0x00000002) +#define SCC_GSMRL_MODE_HDLC ((uint)0x00000000) + +#define SCC_TODR_TOD ((ushort)0x8000) + +/* SCC Event and Mask register. +*/ +#define SCCM_TXE ((unsigned char)0x10) +#define SCCM_BSY ((unsigned char)0x04) +#define SCCM_TX ((unsigned char)0x02) +#define SCCM_RX ((unsigned char)0x01) + +typedef struct scc_param { + ushort scc_rbase; /* Rx Buffer descriptor base address */ + ushort scc_tbase; /* Tx Buffer descriptor base address */ + u_char scc_rfcr; /* Rx function code */ + u_char scc_tfcr; /* Tx function code */ + ushort scc_mrblr; /* Max receive buffer length */ + uint scc_rstate; /* Internal */ + uint scc_idp; /* Internal */ + ushort scc_rbptr; /* Internal */ + ushort scc_ibc; /* Internal */ + uint scc_rxtmp; /* Internal */ + uint scc_tstate; /* Internal */ + uint scc_tdp; /* Internal */ + ushort scc_tbptr; /* Internal */ + ushort scc_tbc; /* Internal */ + uint scc_txtmp; /* Internal */ + uint scc_rcrc; /* Internal */ + uint scc_tcrc; /* Internal */ +} sccp_t; + +/* CPM Ethernet through SCC1. + */ +typedef struct scc_enet { + sccp_t sen_genscc; + uint sen_cpres; /* Preset CRC */ + uint sen_cmask; /* Constant mask for CRC */ + uint sen_crcec; /* CRC Error counter */ + uint sen_alec; /* alignment error counter */ + uint sen_disfc; /* discard frame counter */ + ushort sen_pads; /* Tx short frame pad character */ + ushort sen_retlim; /* Retry limit threshold */ + ushort sen_retcnt; /* Retry limit counter */ + ushort sen_maxflr; /* maximum frame length register */ + ushort sen_minflr; /* minimum frame length register */ + ushort sen_maxd1; /* maximum DMA1 length */ + ushort sen_maxd2; /* maximum DMA2 length */ + ushort sen_maxd; /* Rx max DMA */ + ushort sen_dmacnt; /* Rx DMA counter */ + ushort sen_maxb; /* Max BD byte count */ + ushort sen_gaddr1; /* Group address filter */ + ushort sen_gaddr2; + ushort sen_gaddr3; + ushort sen_gaddr4; + uint sen_tbuf0data0; /* Save area 0 - current frame */ + uint sen_tbuf0data1; /* Save area 1 - current frame */ + uint sen_tbuf0rba; /* Internal */ + uint sen_tbuf0crc; /* Internal */ + ushort sen_tbuf0bcnt; /* Internal */ + ushort sen_paddrh; /* physical address (MSB) */ + ushort sen_paddrm; + ushort sen_paddrl; /* physical address (LSB) */ + ushort sen_pper; /* persistence */ + ushort sen_rfbdptr; /* Rx first BD pointer */ + ushort sen_tfbdptr; /* Tx first BD pointer */ + ushort sen_tlbdptr; /* Tx last BD pointer */ + uint sen_tbuf1data0; /* Save area 0 - current frame */ + uint sen_tbuf1data1; /* Save area 1 - current frame */ + uint sen_tbuf1rba; /* Internal */ + uint sen_tbuf1crc; /* Internal */ + ushort sen_tbuf1bcnt; /* Internal */ + ushort sen_txlen; /* Tx Frame length counter */ + ushort sen_iaddr1; /* Individual address filter */ + ushort sen_iaddr2; + ushort sen_iaddr3; + ushort sen_iaddr4; + ushort sen_boffcnt; /* Backoff counter */ + + /* NOTE: Some versions of the manual have the following items + * incorrectly documented. Below is the proper order. + */ + ushort sen_taddrh; /* temp address (MSB) */ + ushort sen_taddrm; + ushort sen_taddrl; /* temp address (LSB) */ +} scc_enet_t; + + +/* SCC Event register as used by Ethernet. +*/ +#define SCCE_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */ +#define SCCE_ENET_TXE ((ushort)0x0010) /* Transmit Error */ +#define SCCE_ENET_RXF ((ushort)0x0008) /* Full frame received */ +#define SCCE_ENET_BSY ((ushort)0x0004) /* All incoming buffers full */ +#define SCCE_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */ +#define SCCE_ENET_RXB ((ushort)0x0001) /* A buffer was received */ + +/* SCC Mode Register (PSMR) as used by Ethernet. +*/ +#define SCC_PSMR_HBC ((ushort)0x8000) /* Enable heartbeat */ +#define SCC_PSMR_FC ((ushort)0x4000) /* Force collision */ +#define SCC_PSMR_RSH ((ushort)0x2000) /* Receive short frames */ +#define SCC_PSMR_IAM ((ushort)0x1000) /* Check individual hash */ +#define SCC_PSMR_ENCRC ((ushort)0x0800) /* Ethernet CRC mode */ +#define SCC_PSMR_PRO ((ushort)0x0200) /* Promiscuous mode */ +#define SCC_PSMR_BRO ((ushort)0x0100) /* Catch broadcast pkts */ +#define SCC_PSMR_SBT ((ushort)0x0080) /* Special backoff timer */ +#define SCC_PSMR_LPB ((ushort)0x0040) /* Set Loopback mode */ +#define SCC_PSMR_SIP ((ushort)0x0020) /* Sample Input Pins */ +#define SCC_PSMR_LCW ((ushort)0x0010) /* Late collision window */ +#define SCC_PSMR_NIB22 ((ushort)0x000a) /* Start frame search */ +#define SCC_PSMR_FDE ((ushort)0x0001) /* Full duplex enable */ + +/* Buffer descriptor control/status used by Ethernet receive. + * Common to SCC and FCC. + */ +#define BD_ENET_RX_EMPTY ((ushort)0x8000) +#define BD_ENET_RX_WRAP ((ushort)0x2000) +#define BD_ENET_RX_INTR ((ushort)0x1000) +#define BD_ENET_RX_LAST ((ushort)0x0800) +#define BD_ENET_RX_FIRST ((ushort)0x0400) +#define BD_ENET_RX_MISS ((ushort)0x0100) +#define BD_ENET_RX_BC ((ushort)0x0080) /* FCC Only */ +#define BD_ENET_RX_MC ((ushort)0x0040) /* FCC Only */ +#define BD_ENET_RX_LG ((ushort)0x0020) +#define BD_ENET_RX_NO ((ushort)0x0010) +#define BD_ENET_RX_SH ((ushort)0x0008) +#define BD_ENET_RX_CR ((ushort)0x0004) +#define BD_ENET_RX_OV ((ushort)0x0002) +#define BD_ENET_RX_CL ((ushort)0x0001) +#define BD_ENET_RX_STATS ((ushort)0x01ff) /* All status bits */ + +/* Buffer descriptor control/status used by Ethernet transmit. + * Common to SCC and FCC. + */ +#define BD_ENET_TX_READY ((ushort)0x8000) +#define BD_ENET_TX_PAD ((ushort)0x4000) +#define BD_ENET_TX_WRAP ((ushort)0x2000) +#define BD_ENET_TX_INTR ((ushort)0x1000) +#define BD_ENET_TX_LAST ((ushort)0x0800) +#define BD_ENET_TX_TC ((ushort)0x0400) +#define BD_ENET_TX_DEF ((ushort)0x0200) +#define BD_ENET_TX_HB ((ushort)0x0100) +#define BD_ENET_TX_LC ((ushort)0x0080) +#define BD_ENET_TX_RL ((ushort)0x0040) +#define BD_ENET_TX_RCMASK ((ushort)0x003c) +#define BD_ENET_TX_UN ((ushort)0x0002) +#define BD_ENET_TX_CSL ((ushort)0x0001) +#define BD_ENET_TX_STATS ((ushort)0x03ff) /* All status bits */ + +/* SCC as UART +*/ +typedef struct scc_uart { + sccp_t scc_genscc; + uint scc_res1; /* Reserved */ + uint scc_res2; /* Reserved */ + ushort scc_maxidl; /* Maximum idle chars */ + ushort scc_idlc; /* temp idle counter */ + ushort scc_brkcr; /* Break count register */ + ushort scc_parec; /* receive parity error counter */ + ushort scc_frmec; /* receive framing error counter */ + ushort scc_nosec; /* receive noise counter */ + ushort scc_brkec; /* receive break condition counter */ + ushort scc_brkln; /* last received break length */ + ushort scc_uaddr1; /* UART address character 1 */ + ushort scc_uaddr2; /* UART address character 2 */ + ushort scc_rtemp; /* Temp storage */ + ushort scc_toseq; /* Transmit out of sequence char */ + ushort scc_char1; /* control character 1 */ + ushort scc_char2; /* control character 2 */ + ushort scc_char3; /* control character 3 */ + ushort scc_char4; /* control character 4 */ + ushort scc_char5; /* control character 5 */ + ushort scc_char6; /* control character 6 */ + ushort scc_char7; /* control character 7 */ + ushort scc_char8; /* control character 8 */ + ushort scc_rccm; /* receive control character mask */ + ushort scc_rccr; /* receive control character register */ + ushort scc_rlbc; /* receive last break character */ +} scc_uart_t; + +/* SCC Event and Mask registers when it is used as a UART. +*/ +#define UART_SCCM_GLR ((ushort)0x1000) +#define UART_SCCM_GLT ((ushort)0x0800) +#define UART_SCCM_AB ((ushort)0x0200) +#define UART_SCCM_IDL ((ushort)0x0100) +#define UART_SCCM_GRA ((ushort)0x0080) +#define UART_SCCM_BRKE ((ushort)0x0040) +#define UART_SCCM_BRKS ((ushort)0x0020) +#define UART_SCCM_CCR ((ushort)0x0008) +#define UART_SCCM_BSY ((ushort)0x0004) +#define UART_SCCM_TX ((ushort)0x0002) +#define UART_SCCM_RX ((ushort)0x0001) + +/* The SCC PSMR when used as a UART. +*/ +#define SCU_PSMR_FLC ((ushort)0x8000) +#define SCU_PSMR_SL ((ushort)0x4000) +#define SCU_PSMR_CL ((ushort)0x3000) +#define SCU_PSMR_UM ((ushort)0x0c00) +#define SCU_PSMR_FRZ ((ushort)0x0200) +#define SCU_PSMR_RZS ((ushort)0x0100) +#define SCU_PSMR_SYN ((ushort)0x0080) +#define SCU_PSMR_DRT ((ushort)0x0040) +#define SCU_PSMR_PEN ((ushort)0x0010) +#define SCU_PSMR_RPM ((ushort)0x000c) +#define SCU_PSMR_REVP ((ushort)0x0008) +#define SCU_PSMR_TPM ((ushort)0x0003) +#define SCU_PSMR_TEVP ((ushort)0x0003) + +/* CPM Transparent mode SCC. + */ +typedef struct scc_trans { + sccp_t st_genscc; + uint st_cpres; /* Preset CRC */ + uint st_cmask; /* Constant mask for CRC */ +} scc_trans_t; + +#define BD_SCC_TX_LAST ((ushort)0x0800) + +/* SCC as HDLC controller - taken from commproc.h + */ +typedef struct scc_hdlc { + sccp_t sh_genscc; + /* + * HDLC specific parameter RAM + */ + uchar res[4]; /* reserved */ + ulong sh_cmask; /* CRC constant */ + ulong sh_cpres; /* CRC preset */ + ushort sh_disfc; /* discarded frame counter */ + ushort sh_crcec; /* CRC error counter */ + ushort sh_abtsc; /* abort sequence counter */ + ushort sh_nmarc; /* nonmatching address rx cnt */ + ushort sh_retrc; /* frame retransmission cnt */ + ushort sh_mflr; /* maximum frame length reg */ + ushort sh_maxcnt; /* maximum length counter */ + ushort sh_rfthr; /* received frames threshold */ + ushort sh_rfcnt; /* received frames count */ + ushort sh_hmask; /* user defined frm addr mask */ + ushort sh_haddr1; /* user defined frm address 1 */ + ushort sh_haddr2; /* user defined frm address 2 */ + ushort sh_haddr3; /* user defined frm address 3 */ + ushort sh_haddr4; /* user defined frm address 4 */ + ushort tmp; /* temp */ + ushort tmp_mb; /* temp */ +} scc_hdlc_t; + +/* How about some FCCs..... +*/ +#define FCC_GFMR_DIAG_NORM ((uint)0x00000000) +#define FCC_GFMR_DIAG_LE ((uint)0x40000000) +#define FCC_GFMR_DIAG_AE ((uint)0x80000000) +#define FCC_GFMR_DIAG_ALE ((uint)0xc0000000) +#define FCC_GFMR_TCI ((uint)0x20000000) +#define FCC_GFMR_TRX ((uint)0x10000000) +#define FCC_GFMR_TTX ((uint)0x08000000) +#define FCC_GFMR_TTX ((uint)0x08000000) +#define FCC_GFMR_CDP ((uint)0x04000000) +#define FCC_GFMR_CTSP ((uint)0x02000000) +#define FCC_GFMR_CDS ((uint)0x01000000) +#define FCC_GFMR_CTSS ((uint)0x00800000) +#define FCC_GFMR_SYNL_NONE ((uint)0x00000000) +#define FCC_GFMR_SYNL_AUTO ((uint)0x00004000) +#define FCC_GFMR_SYNL_8 ((uint)0x00008000) +#define FCC_GFMR_SYNL_16 ((uint)0x0000c000) +#define FCC_GFMR_RTSM ((uint)0x00002000) +#define FCC_GFMR_RENC_NRZ ((uint)0x00000000) +#define FCC_GFMR_RENC_NRZI ((uint)0x00000800) +#define FCC_GFMR_REVD ((uint)0x00000400) +#define FCC_GFMR_TENC_NRZ ((uint)0x00000000) +#define FCC_GFMR_TENC_NRZI ((uint)0x00000100) +#define FCC_GFMR_TCRC_16 ((uint)0x00000000) +#define FCC_GFMR_TCRC_32 ((uint)0x00000080) +#define FCC_GFMR_ENR ((uint)0x00000020) +#define FCC_GFMR_ENT ((uint)0x00000010) +#define FCC_GFMR_MODE_ENET ((uint)0x0000000c) +#define FCC_GFMR_MODE_ATM ((uint)0x0000000a) +#define FCC_GFMR_MODE_HDLC ((uint)0x00000000) + +/* Generic FCC parameter ram. +*/ +typedef struct fcc_param { + ushort fcc_riptr; /* Rx Internal temp pointer */ + ushort fcc_tiptr; /* Tx Internal temp pointer */ + ushort fcc_res1; + ushort fcc_mrblr; /* Max receive buffer length, mod 32 bytes */ + uint fcc_rstate; /* Upper byte is Func code, must be set */ + uint fcc_rbase; /* Receive BD base */ + ushort fcc_rbdstat; /* RxBD status */ + ushort fcc_rbdlen; /* RxBD down counter */ + uint fcc_rdptr; /* RxBD internal data pointer */ + uint fcc_tstate; /* Upper byte is Func code, must be set */ + uint fcc_tbase; /* Transmit BD base */ + ushort fcc_tbdstat; /* TxBD status */ + ushort fcc_tbdlen; /* TxBD down counter */ + uint fcc_tdptr; /* TxBD internal data pointer */ + uint fcc_rbptr; /* Rx BD Internal buf pointer */ + uint fcc_tbptr; /* Tx BD Internal buf pointer */ + uint fcc_rcrc; /* Rx temp CRC */ + uint fcc_res2; + uint fcc_tcrc; /* Tx temp CRC */ +} fccp_t; + + +/* Ethernet controller through FCC. +*/ +typedef struct fcc_enet { + fccp_t fen_genfcc; + uint fen_statbuf; /* Internal status buffer */ + uint fen_camptr; /* CAM address */ + uint fen_cmask; /* Constant mask for CRC */ + uint fen_cpres; /* Preset CRC */ + uint fen_crcec; /* CRC Error counter */ + uint fen_alec; /* alignment error counter */ + uint fen_disfc; /* discard frame counter */ + ushort fen_retlim; /* Retry limit */ + ushort fen_retcnt; /* Retry counter */ + ushort fen_pper; /* Persistence */ + ushort fen_boffcnt; /* backoff counter */ + uint fen_gaddrh; /* Group address filter, high 32-bits */ + uint fen_gaddrl; /* Group address filter, low 32-bits */ + ushort fen_tfcstat; /* out of sequence TxBD */ + ushort fen_tfclen; + uint fen_tfcptr; + ushort fen_mflr; /* Maximum frame length (1518) */ + ushort fen_paddrh; /* MAC address */ + ushort fen_paddrm; + ushort fen_paddrl; + ushort fen_ibdcount; /* Internal BD counter */ + ushort fen_idbstart; /* Internal BD start pointer */ + ushort fen_ibdend; /* Internal BD end pointer */ + ushort fen_txlen; /* Internal Tx frame length counter */ + uint fen_ibdbase[8]; /* Internal use */ + uint fen_iaddrh; /* Individual address filter */ + uint fen_iaddrl; + ushort fen_minflr; /* Minimum frame length (64) */ + ushort fen_taddrh; /* Filter transfer MAC address */ + ushort fen_taddrm; + ushort fen_taddrl; + ushort fen_padptr; /* Pointer to pad byte buffer */ + ushort fen_cftype; /* control frame type */ + ushort fen_cfrange; /* control frame range */ + ushort fen_maxb; /* maximum BD count */ + ushort fen_maxd1; /* Max DMA1 length (1520) */ + ushort fen_maxd2; /* Max DMA2 length (1520) */ + ushort fen_maxd; /* internal max DMA count */ + ushort fen_dmacnt; /* internal DMA counter */ + uint fen_octc; /* Total octect counter */ + uint fen_colc; /* Total collision counter */ + uint fen_broc; /* Total broadcast packet counter */ + uint fen_mulc; /* Total multicast packet count */ + uint fen_uspc; /* Total packets < 64 bytes */ + uint fen_frgc; /* Total packets < 64 bytes with errors */ + uint fen_ospc; /* Total packets > 1518 */ + uint fen_jbrc; /* Total packets > 1518 with errors */ + uint fen_p64c; /* Total packets == 64 bytes */ + uint fen_p65c; /* Total packets 64 < bytes <= 127 */ + uint fen_p128c; /* Total packets 127 < bytes <= 255 */ + uint fen_p256c; /* Total packets 256 < bytes <= 511 */ + uint fen_p512c; /* Total packets 512 < bytes <= 1023 */ + uint fen_p1024c; /* Total packets 1024 < bytes <= 1518 */ + uint fen_cambuf; /* Internal CAM buffer poiner */ + ushort fen_rfthr; /* Received frames threshold */ + ushort fen_rfcnt; /* Received frames count */ +} fcc_enet_t; + +/* FCC Event/Mask register as used by Ethernet. +*/ +#define FCC_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */ +#define FCC_ENET_RXC ((ushort)0x0040) /* Control Frame Received */ +#define FCC_ENET_TXC ((ushort)0x0020) /* Out of seq. Tx sent */ +#define FCC_ENET_TXE ((ushort)0x0010) /* Transmit Error */ +#define FCC_ENET_RXF ((ushort)0x0008) /* Full frame received */ +#define FCC_ENET_BSY ((ushort)0x0004) /* Busy. Rx Frame dropped */ +#define FCC_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */ +#define FCC_ENET_RXB ((ushort)0x0001) /* A buffer was received */ + +/* FCC Mode Register (FPSMR) as used by Ethernet. +*/ +#define FCC_PSMR_HBC ((uint)0x80000000) /* Enable heartbeat */ +#define FCC_PSMR_FC ((uint)0x40000000) /* Force Collision */ +#define FCC_PSMR_SBT ((uint)0x20000000) /* Stop backoff timer */ +#define FCC_PSMR_LPB ((uint)0x10000000) /* Local protect. 1 = FDX */ +#define FCC_PSMR_LCW ((uint)0x08000000) /* Late collision select */ +#define FCC_PSMR_FDE ((uint)0x04000000) /* Full Duplex Enable */ +#define FCC_PSMR_MON ((uint)0x02000000) /* RMON Enable */ +#define FCC_PSMR_PRO ((uint)0x00400000) /* Promiscuous Enable */ +#define FCC_PSMR_FCE ((uint)0x00200000) /* Flow Control Enable */ +#define FCC_PSMR_RSH ((uint)0x00100000) /* Receive Short Frames */ +#define FCC_PSMR_RMII ((uint)0x00020000) /* Use RMII interface */ +#define FCC_PSMR_CAM ((uint)0x00000400) /* CAM enable */ +#define FCC_PSMR_BRO ((uint)0x00000200) /* Broadcast pkt discard */ +#define FCC_PSMR_ENCRC ((uint)0x00000080) /* Use 32-bit CRC */ + +/* IIC parameter RAM. +*/ +typedef struct iic { + ushort iic_rbase; /* Rx Buffer descriptor base address */ + ushort iic_tbase; /* Tx Buffer descriptor base address */ + u_char iic_rfcr; /* Rx function code */ + u_char iic_tfcr; /* Tx function code */ + ushort iic_mrblr; /* Max receive buffer length */ + uint iic_rstate; /* Internal */ + uint iic_rdp; /* Internal */ + ushort iic_rbptr; /* Internal */ + ushort iic_rbc; /* Internal */ + uint iic_rxtmp; /* Internal */ + uint iic_tstate; /* Internal */ + uint iic_tdp; /* Internal */ + ushort iic_tbptr; /* Internal */ + ushort iic_tbc; /* Internal */ + uint iic_txtmp; /* Internal */ +} iic_t; + +/* SPI parameter RAM. +*/ +typedef struct spi { + ushort spi_rbase; /* Rx Buffer descriptor base address */ + ushort spi_tbase; /* Tx Buffer descriptor base address */ + u_char spi_rfcr; /* Rx function code */ + u_char spi_tfcr; /* Tx function code */ + ushort spi_mrblr; /* Max receive buffer length */ + uint spi_rstate; /* Internal */ + uint spi_rdp; /* Internal */ + ushort spi_rbptr; /* Internal */ + ushort spi_rbc; /* Internal */ + uint spi_rxtmp; /* Internal */ + uint spi_tstate; /* Internal */ + uint spi_tdp; /* Internal */ + ushort spi_tbptr; /* Internal */ + ushort spi_tbc; /* Internal */ + uint spi_txtmp; /* Internal */ + uint spi_res; /* Tx temp. */ + uint spi_res1[4]; /* SDMA temp. */ +} spi_t; + +/* SPI Mode register. +*/ +#define SPMODE_LOOP ((ushort)0x4000) /* Loopback */ +#define SPMODE_CI ((ushort)0x2000) /* Clock Invert */ +#define SPMODE_CP ((ushort)0x1000) /* Clock Phase */ +#define SPMODE_DIV16 ((ushort)0x0800) /* BRG/16 mode */ +#define SPMODE_REV ((ushort)0x0400) /* Reversed Data */ +#define SPMODE_MSTR ((ushort)0x0200) /* SPI Master */ +#define SPMODE_EN ((ushort)0x0100) /* Enable */ +#define SPMODE_LENMSK ((ushort)0x00f0) /* character length */ +#define SPMODE_PMMSK ((ushort)0x000f) /* prescale modulus */ + +#define SPMODE_LEN(x) ((((x)-1)&0xF)<<4) +#define SPMODE_PM(x) ((x) &0xF) + +/* SPI Event/Mask register. +*/ +#define SPI_EMASK 0x37 /* Event Mask */ +#define SPI_MME 0x20 /* Multi-Master Error */ +#define SPI_TXE 0x10 /* Transmit Error */ +#define SPI_BSY 0x04 /* Busy */ +#define SPI_TXB 0x02 /* Tx Buffer Empty */ +#define SPI_RXB 0x01 /* RX Buffer full/closed */ + +#define SPI_STR 0x80 /* SPCOM: Start transmit */ + +#define SPI_EB ((u_char)0x10) /* big endian byte order */ + +#define BD_IIC_START ((ushort)0x0400) + +#endif /* __CPM_82XX__ */ diff --git a/arch/ppc/include/asm/cpm_85xx.h b/arch/ppc/include/asm/cpm_85xx.h new file mode 100644 index 0000000..a74a3a1 --- /dev/null +++ b/arch/ppc/include/asm/cpm_85xx.h @@ -0,0 +1,830 @@ + +/* + * MPC85xx Communication Processor Module + * Copyright (c) 2003,Motorola Inc. + * Xianghua Xiao (X.Xiao@motorola.com) + * + * MPC8260 Communication Processor Module. + * Copyright (c) 1999 Dan Malek (dmalek@jlc.net) + * + * This file contains structures and information for the communication + * processor channels found in the dual port RAM or parameter RAM. + * All CPM control and status is available through the MPC8260 internal + * memory map. See immap.h for details. + */ +#ifndef __CPM_85XX__ +#define __CPM_85XX__ + +#include <asm/immap_85xx.h> + +/* CPM Command register. +*/ +#define CPM_CR_RST ((uint)0x80000000) +#define CPM_CR_PAGE ((uint)0x7c000000) +#define CPM_CR_SBLOCK ((uint)0x03e00000) +#define CPM_CR_FLG ((uint)0x00010000) +#define CPM_CR_MCN ((uint)0x00003fc0) +#define CPM_CR_OPCODE ((uint)0x0000000f) + +/* Device sub-block and page codes. +*/ +#define CPM_CR_SCC1_SBLOCK (0x04) +#define CPM_CR_SCC2_SBLOCK (0x05) +#define CPM_CR_SCC3_SBLOCK (0x06) +#define CPM_CR_SCC4_SBLOCK (0x07) +#define CPM_CR_SMC1_SBLOCK (0x08) +#define CPM_CR_SMC2_SBLOCK (0x09) +#define CPM_CR_SPI_SBLOCK (0x0a) +#define CPM_CR_I2C_SBLOCK (0x0b) +#define CPM_CR_TIMER_SBLOCK (0x0f) +#define CPM_CR_RAND_SBLOCK (0x0e) +#define CPM_CR_FCC1_SBLOCK (0x10) +#define CPM_CR_FCC2_SBLOCK (0x11) +#define CPM_CR_FCC3_SBLOCK (0x12) +#define CPM_CR_MCC1_SBLOCK (0x1c) + +#define CPM_CR_SCC1_PAGE (0x00) +#define CPM_CR_SCC2_PAGE (0x01) +#define CPM_CR_SCC3_PAGE (0x02) +#define CPM_CR_SCC4_PAGE (0x03) +#define CPM_CR_SPI_PAGE (0x09) +#define CPM_CR_I2C_PAGE (0x0a) +#define CPM_CR_TIMER_PAGE (0x0a) +#define CPM_CR_RAND_PAGE (0x0a) +#define CPM_CR_FCC1_PAGE (0x04) +#define CPM_CR_FCC2_PAGE (0x05) +#define CPM_CR_FCC3_PAGE (0x06) +#define CPM_CR_MCC1_PAGE (0x07) +#define CPM_CR_MCC2_PAGE (0x08) + +/* Some opcodes (there are more...later) +*/ +#define CPM_CR_INIT_TRX ((ushort)0x0000) +#define CPM_CR_INIT_RX ((ushort)0x0001) +#define CPM_CR_INIT_TX ((ushort)0x0002) +#define CPM_CR_HUNT_MODE ((ushort)0x0003) +#define CPM_CR_STOP_TX ((ushort)0x0004) +#define CPM_CR_RESTART_TX ((ushort)0x0006) +#define CPM_CR_SET_GADDR ((ushort)0x0008) + +#define mk_cr_cmd(PG, SBC, MCN, OP) \ + ((PG << 26) | (SBC << 21) | (MCN << 6) | OP) + +/* Dual Port RAM addresses. The first 16K is available for almost + * any CPM use, so we put the BDs there. The first 128 bytes are + * used for SMC1 and SMC2 parameter RAM, so we start allocating + * BDs above that. All of this must change when we start + * downloading RAM microcode. + */ +#define CPM_DATAONLY_BASE ((uint)128) +#define CPM_DP_NOSPACE ((uint)0x7FFFFFFF) +#if defined(CONFIG_MPC8541) || defined(CONFIG_MPC8555) +#define CPM_FCC_SPECIAL_BASE ((uint)0x00009000) +#define CPM_DATAONLY_SIZE ((uint)(8 * 1024) - CPM_DATAONLY_BASE) +#else /* MPC8540, MPC8560 */ +#define CPM_FCC_SPECIAL_BASE ((uint)0x0000B000) +#define CPM_DATAONLY_SIZE ((uint)(16 * 1024) - CPM_DATAONLY_BASE) +#endif + +/* The number of pages of host memory we allocate for CPM. This is + * done early in kernel initialization to get physically contiguous + * pages. + */ +#define NUM_CPM_HOST_PAGES 2 + +/* Export the base address of the communication processor registers + * and dual port ram. + */ +/*extern cpm8560_t *cpmp; Pointer to comm processor */ +uint m8560_cpm_dpalloc(uint size, uint align); +uint m8560_cpm_hostalloc(uint size, uint align); +void m8560_cpm_setbrg(uint brg, uint rate); +void m8560_cpm_fastbrg(uint brg, uint rate, int div16); +void m8560_cpm_extcbrg(uint brg, uint rate, uint extclk, int pinsel); + +/* Buffer descriptors used by many of the CPM protocols. +*/ +typedef struct cpm_buf_desc { + ushort cbd_sc; /* Status and Control */ + ushort cbd_datlen; /* Data length in buffer */ + uint cbd_bufaddr; /* Buffer address in host memory */ +} cbd_t; + +#define BD_SC_EMPTY ((ushort)0x8000) /* Recieve is empty */ +#define BD_SC_READY ((ushort)0x8000) /* Transmit is ready */ +#define BD_SC_WRAP ((ushort)0x2000) /* Last buffer descriptor */ +#define BD_SC_INTRPT ((ushort)0x1000) /* Interrupt on change */ +#define BD_SC_LAST ((ushort)0x0800) /* Last buffer in frame */ +#define BD_SC_CM ((ushort)0x0200) /* Continous mode */ +#define BD_SC_ID ((ushort)0x0100) /* Rec'd too many idles */ +#define BD_SC_P ((ushort)0x0100) /* xmt preamble */ +#define BD_SC_BR ((ushort)0x0020) /* Break received */ +#define BD_SC_FR ((ushort)0x0010) /* Framing error */ +#define BD_SC_PR ((ushort)0x0008) /* Parity error */ +#define BD_SC_OV ((ushort)0x0002) /* Overrun */ +#define BD_SC_CD ((ushort)0x0001) /* ?? */ + +/* Function code bits, usually generic to devices. +*/ +#define CPMFCR_GBL ((u_char)0x20) /* Set memory snooping */ +#define CPMFCR_EB ((u_char)0x10) /* Set big endian byte order */ +#define CPMFCR_TC2 ((u_char)0x04) /* Transfer code 2 value */ +#define CPMFCR_DTB ((u_char)0x02) /* Use local bus for data when set */ +#define CPMFCR_BDB ((u_char)0x01) /* Use local bus for BD when set */ + +/* Parameter RAM offsets from the base. +*/ +#define CPM_POST_WORD_ADDR 0x80FC /* steal a long at the end of SCC1 */ +#define PROFF_SCC1 ((uint)0x8000) +#define PROFF_SCC2 ((uint)0x8100) +#define PROFF_SCC3 ((uint)0x8200) +#define PROFF_SCC4 ((uint)0x8300) +#define PROFF_FCC1 ((uint)0x8400) +#define PROFF_FCC2 ((uint)0x8500) +#define PROFF_FCC3 ((uint)0x8600) +#define PROFF_MCC1 ((uint)0x8700) +#define PROFF_MCC2 ((uint)0x8800) +#define PROFF_SPI_BASE ((uint)0x89fc) +#define PROFF_TIMERS ((uint)0x8ae0) +#define PROFF_REVNUM ((uint)0x8af0) +#define PROFF_RAND ((uint)0x8af8) +#define PROFF_I2C_BASE ((uint)0x8afc) + +/* Baud rate generators. +*/ +#define CPM_BRG_RST ((uint)0x00020000) +#define CPM_BRG_EN ((uint)0x00010000) +#define CPM_BRG_EXTC_INT ((uint)0x00000000) +#define CPM_BRG_EXTC_CLK3_9 ((uint)0x00004000) +#define CPM_BRG_EXTC_CLK5_15 ((uint)0x00008000) +#define CPM_BRG_ATB ((uint)0x00002000) +#define CPM_BRG_CD_MASK ((uint)0x00001ffe) +#define CPM_BRG_DIV16 ((uint)0x00000001) + +/* SCCs. +*/ +#define SCC_GSMRH_IRP ((uint)0x00040000) +#define SCC_GSMRH_GDE ((uint)0x00010000) +#define SCC_GSMRH_TCRC_CCITT ((uint)0x00008000) +#define SCC_GSMRH_TCRC_BISYNC ((uint)0x00004000) +#define SCC_GSMRH_TCRC_HDLC ((uint)0x00000000) +#define SCC_GSMRH_REVD ((uint)0x00002000) +#define SCC_GSMRH_TRX ((uint)0x00001000) +#define SCC_GSMRH_TTX ((uint)0x00000800) +#define SCC_GSMRH_CDP ((uint)0x00000400) +#define SCC_GSMRH_CTSP ((uint)0x00000200) +#define SCC_GSMRH_CDS ((uint)0x00000100) +#define SCC_GSMRH_CTSS ((uint)0x00000080) +#define SCC_GSMRH_TFL ((uint)0x00000040) +#define SCC_GSMRH_RFW ((uint)0x00000020) +#define SCC_GSMRH_TXSY ((uint)0x00000010) +#define SCC_GSMRH_SYNL16 ((uint)0x0000000c) +#define SCC_GSMRH_SYNL8 ((uint)0x00000008) +#define SCC_GSMRH_SYNL4 ((uint)0x00000004) +#define SCC_GSMRH_RTSM ((uint)0x00000002) +#define SCC_GSMRH_RSYN ((uint)0x00000001) + +#define SCC_GSMRL_SIR ((uint)0x80000000) /* SCC2 only */ +#define SCC_GSMRL_EDGE_NONE ((uint)0x60000000) +#define SCC_GSMRL_EDGE_NEG ((uint)0x40000000) +#define SCC_GSMRL_EDGE_POS ((uint)0x20000000) +#define SCC_GSMRL_EDGE_BOTH ((uint)0x00000000) +#define SCC_GSMRL_TCI ((uint)0x10000000) +#define SCC_GSMRL_TSNC_3 ((uint)0x0c000000) +#define SCC_GSMRL_TSNC_4 ((uint)0x08000000) +#define SCC_GSMRL_TSNC_14 ((uint)0x04000000) +#define SCC_GSMRL_TSNC_INF ((uint)0x00000000) +#define SCC_GSMRL_RINV ((uint)0x02000000) +#define SCC_GSMRL_TINV ((uint)0x01000000) +#define SCC_GSMRL_TPL_128 ((uint)0x00c00000) +#define SCC_GSMRL_TPL_64 ((uint)0x00a00000) +#define SCC_GSMRL_TPL_48 ((uint)0x00800000) +#define SCC_GSMRL_TPL_32 ((uint)0x00600000) +#define SCC_GSMRL_TPL_16 ((uint)0x00400000) +#define SCC_GSMRL_TPL_8 ((uint)0x00200000) +#define SCC_GSMRL_TPL_NONE ((uint)0x00000000) +#define SCC_GSMRL_TPP_ALL1 ((uint)0x00180000) +#define SCC_GSMRL_TPP_01 ((uint)0x00100000) +#define SCC_GSMRL_TPP_10 ((uint)0x00080000) +#define SCC_GSMRL_TPP_ZEROS ((uint)0x00000000) +#define SCC_GSMRL_TEND ((uint)0x00040000) +#define SCC_GSMRL_TDCR_32 ((uint)0x00030000) +#define SCC_GSMRL_TDCR_16 ((uint)0x00020000) +#define SCC_GSMRL_TDCR_8 ((uint)0x00010000) +#define SCC_GSMRL_TDCR_1 ((uint)0x00000000) +#define SCC_GSMRL_RDCR_32 ((uint)0x0000c000) +#define SCC_GSMRL_RDCR_16 ((uint)0x00008000) +#define SCC_GSMRL_RDCR_8 ((uint)0x00004000) +#define SCC_GSMRL_RDCR_1 ((uint)0x00000000) +#define SCC_GSMRL_RENC_DFMAN ((uint)0x00003000) +#define SCC_GSMRL_RENC_MANCH ((uint)0x00002000) +#define SCC_GSMRL_RENC_FM0 ((uint)0x00001000) +#define SCC_GSMRL_RENC_NRZI ((uint)0x00000800) +#define SCC_GSMRL_RENC_NRZ ((uint)0x00000000) +#define SCC_GSMRL_TENC_DFMAN ((uint)0x00000600) +#define SCC_GSMRL_TENC_MANCH ((uint)0x00000400) +#define SCC_GSMRL_TENC_FM0 ((uint)0x00000200) +#define SCC_GSMRL_TENC_NRZI ((uint)0x00000100) +#define SCC_GSMRL_TENC_NRZ ((uint)0x00000000) +#define SCC_GSMRL_DIAG_LE ((uint)0x000000c0) /* Loop and echo */ +#define SCC_GSMRL_DIAG_ECHO ((uint)0x00000080) +#define SCC_GSMRL_DIAG_LOOP ((uint)0x00000040) +#define SCC_GSMRL_DIAG_NORM ((uint)0x00000000) +#define SCC_GSMRL_ENR ((uint)0x00000020) +#define SCC_GSMRL_ENT ((uint)0x00000010) +#define SCC_GSMRL_MODE_ENET ((uint)0x0000000c) +#define SCC_GSMRL_MODE_DDCMP ((uint)0x00000009) +#define SCC_GSMRL_MODE_BISYNC ((uint)0x00000008) +#define SCC_GSMRL_MODE_V14 ((uint)0x00000007) +#define SCC_GSMRL_MODE_AHDLC ((uint)0x00000006) +#define SCC_GSMRL_MODE_PROFIBUS ((uint)0x00000005) +#define SCC_GSMRL_MODE_UART ((uint)0x00000004) +#define SCC_GSMRL_MODE_SS7 ((uint)0x00000003) +#define SCC_GSMRL_MODE_ATALK ((uint)0x00000002) +#define SCC_GSMRL_MODE_HDLC ((uint)0x00000000) + +#define SCC_TODR_TOD ((ushort)0x8000) + +/* SCC Event and Mask register. +*/ +#define SCCM_TXE ((unsigned char)0x10) +#define SCCM_BSY ((unsigned char)0x04) +#define SCCM_TX ((unsigned char)0x02) +#define SCCM_RX ((unsigned char)0x01) + +typedef struct scc_param { + ushort scc_rbase; /* Rx Buffer descriptor base address */ + ushort scc_tbase; /* Tx Buffer descriptor base address */ + u_char scc_rfcr; /* Rx function code */ + u_char scc_tfcr; /* Tx function code */ + ushort scc_mrblr; /* Max receive buffer length */ + uint scc_rstate; /* Internal */ + uint scc_idp; /* Internal */ + ushort scc_rbptr; /* Internal */ + ushort scc_ibc; /* Internal */ + uint scc_rxtmp; /* Internal */ + uint scc_tstate; /* Internal */ + uint scc_tdp; /* Internal */ + ushort scc_tbptr; /* Internal */ + ushort scc_tbc; /* Internal */ + uint scc_txtmp; /* Internal */ + uint scc_rcrc; /* Internal */ + uint scc_tcrc; /* Internal */ +} sccp_t; + +/* CPM Ethernet through SCC1. + */ +typedef struct scc_enet { + sccp_t sen_genscc; + uint sen_cpres; /* Preset CRC */ + uint sen_cmask; /* Constant mask for CRC */ + uint sen_crcec; /* CRC Error counter */ + uint sen_alec; /* alignment error counter */ + uint sen_disfc; /* discard frame counter */ + ushort sen_pads; /* Tx short frame pad character */ + ushort sen_retlim; /* Retry limit threshold */ + ushort sen_retcnt; /* Retry limit counter */ + ushort sen_maxflr; /* maximum frame length register */ + ushort sen_minflr; /* minimum frame length register */ + ushort sen_maxd1; /* maximum DMA1 length */ + ushort sen_maxd2; /* maximum DMA2 length */ + ushort sen_maxd; /* Rx max DMA */ + ushort sen_dmacnt; /* Rx DMA counter */ + ushort sen_maxb; /* Max BD byte count */ + ushort sen_gaddr1; /* Group address filter */ + ushort sen_gaddr2; + ushort sen_gaddr3; + ushort sen_gaddr4; + uint sen_tbuf0data0; /* Save area 0 - current frame */ + uint sen_tbuf0data1; /* Save area 1 - current frame */ + uint sen_tbuf0rba; /* Internal */ + uint sen_tbuf0crc; /* Internal */ + ushort sen_tbuf0bcnt; /* Internal */ + ushort sen_paddrh; /* physical address (MSB) */ + ushort sen_paddrm; + ushort sen_paddrl; /* physical address (LSB) */ + ushort sen_pper; /* persistence */ + ushort sen_rfbdptr; /* Rx first BD pointer */ + ushort sen_tfbdptr; /* Tx first BD pointer */ + ushort sen_tlbdptr; /* Tx last BD pointer */ + uint sen_tbuf1data0; /* Save area 0 - current frame */ + uint sen_tbuf1data1; /* Save area 1 - current frame */ + uint sen_tbuf1rba; /* Internal */ + uint sen_tbuf1crc; /* Internal */ + ushort sen_tbuf1bcnt; /* Internal */ + ushort sen_txlen; /* Tx Frame length counter */ + ushort sen_iaddr1; /* Individual address filter */ + ushort sen_iaddr2; + ushort sen_iaddr3; + ushort sen_iaddr4; + ushort sen_boffcnt; /* Backoff counter */ + + /* NOTE: Some versions of the manual have the following items + * incorrectly documented. Below is the proper order. + */ + ushort sen_taddrh; /* temp address (MSB) */ + ushort sen_taddrm; + ushort sen_taddrl; /* temp address (LSB) */ +} scc_enet_t; + + +/* SCC Event register as used by Ethernet. +*/ +#define SCCE_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */ +#define SCCE_ENET_TXE ((ushort)0x0010) /* Transmit Error */ +#define SCCE_ENET_RXF ((ushort)0x0008) /* Full frame received */ +#define SCCE_ENET_BSY ((ushort)0x0004) /* All incoming buffers full */ +#define SCCE_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */ +#define SCCE_ENET_RXB ((ushort)0x0001) /* A buffer was received */ + +/* SCC Mode Register (PSMR) as used by Ethernet. +*/ +#define SCC_PSMR_HBC ((ushort)0x8000) /* Enable heartbeat */ +#define SCC_PSMR_FC ((ushort)0x4000) /* Force collision */ +#define SCC_PSMR_RSH ((ushort)0x2000) /* Receive short frames */ +#define SCC_PSMR_IAM ((ushort)0x1000) /* Check individual hash */ +#define SCC_PSMR_ENCRC ((ushort)0x0800) /* Ethernet CRC mode */ +#define SCC_PSMR_PRO ((ushort)0x0200) /* Promiscuous mode */ +#define SCC_PSMR_BRO ((ushort)0x0100) /* Catch broadcast pkts */ +#define SCC_PSMR_SBT ((ushort)0x0080) /* Special backoff timer */ +#define SCC_PSMR_LPB ((ushort)0x0040) /* Set Loopback mode */ +#define SCC_PSMR_SIP ((ushort)0x0020) /* Sample Input Pins */ +#define SCC_PSMR_LCW ((ushort)0x0010) /* Late collision window */ +#define SCC_PSMR_NIB22 ((ushort)0x000a) /* Start frame search */ +#define SCC_PSMR_FDE ((ushort)0x0001) /* Full duplex enable */ + +/* Buffer descriptor control/status used by Ethernet receive. + * Common to SCC and FCC. + */ +#define BD_ENET_RX_EMPTY ((ushort)0x8000) +#define BD_ENET_RX_WRAP ((ushort)0x2000) +#define BD_ENET_RX_INTR ((ushort)0x1000) +#define BD_ENET_RX_LAST ((ushort)0x0800) +#define BD_ENET_RX_FIRST ((ushort)0x0400) +#define BD_ENET_RX_MISS ((ushort)0x0100) +#define BD_ENET_RX_BC ((ushort)0x0080) /* FCC Only */ +#define BD_ENET_RX_MC ((ushort)0x0040) /* FCC Only */ +#define BD_ENET_RX_LG ((ushort)0x0020) +#define BD_ENET_RX_NO ((ushort)0x0010) +#define BD_ENET_RX_SH ((ushort)0x0008) +#define BD_ENET_RX_CR ((ushort)0x0004) +#define BD_ENET_RX_OV ((ushort)0x0002) +#define BD_ENET_RX_CL ((ushort)0x0001) +#define BD_ENET_RX_STATS ((ushort)0x01ff) /* All status bits */ + +/* Buffer descriptor control/status used by Ethernet transmit. + * Common to SCC and FCC. + */ +#define BD_ENET_TX_READY ((ushort)0x8000) +#define BD_ENET_TX_PAD ((ushort)0x4000) +#define BD_ENET_TX_WRAP ((ushort)0x2000) +#define BD_ENET_TX_INTR ((ushort)0x1000) +#define BD_ENET_TX_LAST ((ushort)0x0800) +#define BD_ENET_TX_TC ((ushort)0x0400) +#define BD_ENET_TX_DEF ((ushort)0x0200) +#define BD_ENET_TX_HB ((ushort)0x0100) +#define BD_ENET_TX_LC ((ushort)0x0080) +#define BD_ENET_TX_RL ((ushort)0x0040) +#define BD_ENET_TX_RCMASK ((ushort)0x003c) +#define BD_ENET_TX_UN ((ushort)0x0002) +#define BD_ENET_TX_CSL ((ushort)0x0001) +#define BD_ENET_TX_STATS ((ushort)0x03ff) /* All status bits */ + +/* SCC as UART +*/ +typedef struct scc_uart { + sccp_t scc_genscc; + uint scc_res1; /* Reserved */ + uint scc_res2; /* Reserved */ + ushort scc_maxidl; /* Maximum idle chars */ + ushort scc_idlc; /* temp idle counter */ + ushort scc_brkcr; /* Break count register */ + ushort scc_parec; /* receive parity error counter */ + ushort scc_frmec; /* receive framing error counter */ + ushort scc_nosec; /* receive noise counter */ + ushort scc_brkec; /* receive break condition counter */ + ushort scc_brkln; /* last received break length */ + ushort scc_uaddr1; /* UART address character 1 */ + ushort scc_uaddr2; /* UART address character 2 */ + ushort scc_rtemp; /* Temp storage */ + ushort scc_toseq; /* Transmit out of sequence char */ + ushort scc_char1; /* control character 1 */ + ushort scc_char2; /* control character 2 */ + ushort scc_char3; /* control character 3 */ + ushort scc_char4; /* control character 4 */ + ushort scc_char5; /* control character 5 */ + ushort scc_char6; /* control character 6 */ + ushort scc_char7; /* control character 7 */ + ushort scc_char8; /* control character 8 */ + ushort scc_rccm; /* receive control character mask */ + ushort scc_rccr; /* receive control character register */ + ushort scc_rlbc; /* receive last break character */ +} scc_uart_t; + +/* SCC Event and Mask registers when it is used as a UART. +*/ +#define UART_SCCM_GLR ((ushort)0x1000) +#define UART_SCCM_GLT ((ushort)0x0800) +#define UART_SCCM_AB ((ushort)0x0200) +#define UART_SCCM_IDL ((ushort)0x0100) +#define UART_SCCM_GRA ((ushort)0x0080) +#define UART_SCCM_BRKE ((ushort)0x0040) +#define UART_SCCM_BRKS ((ushort)0x0020) +#define UART_SCCM_CCR ((ushort)0x0008) +#define UART_SCCM_BSY ((ushort)0x0004) +#define UART_SCCM_TX ((ushort)0x0002) +#define UART_SCCM_RX ((ushort)0x0001) + +/* The SCC PSMR when used as a UART. +*/ +#define SCU_PSMR_FLC ((ushort)0x8000) +#define SCU_PSMR_SL ((ushort)0x4000) +#define SCU_PSMR_CL ((ushort)0x3000) +#define SCU_PSMR_UM ((ushort)0x0c00) +#define SCU_PSMR_FRZ ((ushort)0x0200) +#define SCU_PSMR_RZS ((ushort)0x0100) +#define SCU_PSMR_SYN ((ushort)0x0080) +#define SCU_PSMR_DRT ((ushort)0x0040) +#define SCU_PSMR_PEN ((ushort)0x0010) +#define SCU_PSMR_RPM ((ushort)0x000c) +#define SCU_PSMR_REVP ((ushort)0x0008) +#define SCU_PSMR_TPM ((ushort)0x0003) +#define SCU_PSMR_TEVP ((ushort)0x0003) + +/* CPM Transparent mode SCC. + */ +typedef struct scc_trans { + sccp_t st_genscc; + uint st_cpres; /* Preset CRC */ + uint st_cmask; /* Constant mask for CRC */ +} scc_trans_t; + +#define BD_SCC_TX_LAST ((ushort)0x0800) + +/* How about some FCCs..... +*/ +#define FCC_GFMR_DIAG_NORM ((uint)0x00000000) +#define FCC_GFMR_DIAG_LE ((uint)0x40000000) +#define FCC_GFMR_DIAG_AE ((uint)0x80000000) +#define FCC_GFMR_DIAG_ALE ((uint)0xc0000000) +#define FCC_GFMR_TCI ((uint)0x20000000) +#define FCC_GFMR_TRX ((uint)0x10000000) +#define FCC_GFMR_TTX ((uint)0x08000000) +#define FCC_GFMR_TTX ((uint)0x08000000) +#define FCC_GFMR_CDP ((uint)0x04000000) +#define FCC_GFMR_CTSP ((uint)0x02000000) +#define FCC_GFMR_CDS ((uint)0x01000000) +#define FCC_GFMR_CTSS ((uint)0x00800000) +#define FCC_GFMR_SYNL_NONE ((uint)0x00000000) +#define FCC_GFMR_SYNL_AUTO ((uint)0x00004000) +#define FCC_GFMR_SYNL_8 ((uint)0x00008000) +#define FCC_GFMR_SYNL_16 ((uint)0x0000c000) +#define FCC_GFMR_RTSM ((uint)0x00002000) +#define FCC_GFMR_RENC_NRZ ((uint)0x00000000) +#define FCC_GFMR_RENC_NRZI ((uint)0x00000800) +#define FCC_GFMR_REVD ((uint)0x00000400) +#define FCC_GFMR_TENC_NRZ ((uint)0x00000000) +#define FCC_GFMR_TENC_NRZI ((uint)0x00000100) +#define FCC_GFMR_TCRC_16 ((uint)0x00000000) +#define FCC_GFMR_TCRC_32 ((uint)0x00000080) +#define FCC_GFMR_ENR ((uint)0x00000020) +#define FCC_GFMR_ENT ((uint)0x00000010) +#define FCC_GFMR_MODE_ENET ((uint)0x0000000c) +#define FCC_GFMR_MODE_ATM ((uint)0x0000000a) +#define FCC_GFMR_MODE_HDLC ((uint)0x00000000) + +/* Generic FCC parameter ram. +*/ +typedef struct fcc_param { + ushort fcc_riptr; /* Rx Internal temp pointer */ + ushort fcc_tiptr; /* Tx Internal temp pointer */ + ushort fcc_res1; + ushort fcc_mrblr; /* Max receive buffer length, mod 32 bytes */ + uint fcc_rstate; /* Upper byte is Func code, must be set */ + uint fcc_rbase; /* Receive BD base */ + ushort fcc_rbdstat; /* RxBD status */ + ushort fcc_rbdlen; /* RxBD down counter */ + uint fcc_rdptr; /* RxBD internal data pointer */ + uint fcc_tstate; /* Upper byte is Func code, must be set */ + uint fcc_tbase; /* Transmit BD base */ + ushort fcc_tbdstat; /* TxBD status */ + ushort fcc_tbdlen; /* TxBD down counter */ + uint fcc_tdptr; /* TxBD internal data pointer */ + uint fcc_rbptr; /* Rx BD Internal buf pointer */ + uint fcc_tbptr; /* Tx BD Internal buf pointer */ + uint fcc_rcrc; /* Rx temp CRC */ + uint fcc_res2; + uint fcc_tcrc; /* Tx temp CRC */ +} fccp_t; + + +/* Ethernet controller through FCC. +*/ +typedef struct fcc_enet { + fccp_t fen_genfcc; + uint fen_statbuf; /* Internal status buffer */ + uint fen_camptr; /* CAM address */ + uint fen_cmask; /* Constant mask for CRC */ + uint fen_cpres; /* Preset CRC */ + uint fen_crcec; /* CRC Error counter */ + uint fen_alec; /* alignment error counter */ + uint fen_disfc; /* discard frame counter */ + ushort fen_retlim; /* Retry limit */ + ushort fen_retcnt; /* Retry counter */ + ushort fen_pper; /* Persistence */ + ushort fen_boffcnt; /* backoff counter */ + uint fen_gaddrh; /* Group address filter, high 32-bits */ + uint fen_gaddrl; /* Group address filter, low 32-bits */ + ushort fen_tfcstat; /* out of sequence TxBD */ + ushort fen_tfclen; + uint fen_tfcptr; + ushort fen_mflr; /* Maximum frame length (1518) */ + ushort fen_paddrh; /* MAC address */ + ushort fen_paddrm; + ushort fen_paddrl; + ushort fen_ibdcount; /* Internal BD counter */ + ushort fen_ibdstart; /* Internal BD start pointer */ + ushort fen_ibdend; /* Internal BD end pointer */ + ushort fen_txlen; /* Internal Tx frame length counter */ + uint fen_ibdbase[8]; /* Internal use */ + uint fen_iaddrh; /* Individual address filter */ + uint fen_iaddrl; + ushort fen_minflr; /* Minimum frame length (64) */ + ushort fen_taddrh; /* Filter transfer MAC address */ + ushort fen_taddrm; + ushort fen_taddrl; + ushort fen_padptr; /* Pointer to pad byte buffer */ + ushort fen_cftype; /* control frame type */ + ushort fen_cfrange; /* control frame range */ + ushort fen_maxb; /* maximum BD count */ + ushort fen_maxd1; /* Max DMA1 length (1520) */ + ushort fen_maxd2; /* Max DMA2 length (1520) */ + ushort fen_maxd; /* internal max DMA count */ + ushort fen_dmacnt; /* internal DMA counter */ + uint fen_octc; /* Total octect counter */ + uint fen_colc; /* Total collision counter */ + uint fen_broc; /* Total broadcast packet counter */ + uint fen_mulc; /* Total multicast packet count */ + uint fen_uspc; /* Total packets < 64 bytes */ + uint fen_frgc; /* Total packets < 64 bytes with errors */ + uint fen_ospc; /* Total packets > 1518 */ + uint fen_jbrc; /* Total packets > 1518 with errors */ + uint fen_p64c; /* Total packets == 64 bytes */ + uint fen_p65c; /* Total packets 64 < bytes <= 127 */ + uint fen_p128c; /* Total packets 127 < bytes <= 255 */ + uint fen_p256c; /* Total packets 256 < bytes <= 511 */ + uint fen_p512c; /* Total packets 512 < bytes <= 1023 */ + uint fen_p1024c; /* Total packets 1024 < bytes <= 1518 */ + uint fen_cambuf; /* Internal CAM buffer poiner */ + ushort fen_rfthr; /* Received frames threshold */ + ushort fen_rfcnt; /* Received frames count */ +} fcc_enet_t; + +/* FCC Event/Mask register as used by Ethernet. +*/ +#define FCC_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */ +#define FCC_ENET_RXC ((ushort)0x0040) /* Control Frame Received */ +#define FCC_ENET_TXC ((ushort)0x0020) /* Out of seq. Tx sent */ +#define FCC_ENET_TXE ((ushort)0x0010) /* Transmit Error */ +#define FCC_ENET_RXF ((ushort)0x0008) /* Full frame received */ +#define FCC_ENET_BSY ((ushort)0x0004) /* Busy. Rx Frame dropped */ +#define FCC_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */ +#define FCC_ENET_RXB ((ushort)0x0001) /* A buffer was received */ + +/* FCC Mode Register (FPSMR) as used by Ethernet. +*/ +#define FCC_PSMR_HBC ((uint)0x80000000) /* Enable heartbeat */ +#define FCC_PSMR_FC ((uint)0x40000000) /* Force Collision */ +#define FCC_PSMR_SBT ((uint)0x20000000) /* Stop backoff timer */ +#define FCC_PSMR_LPB ((uint)0x10000000) /* Local protect. 1 = FDX */ +#define FCC_PSMR_LCW ((uint)0x08000000) /* Late collision select */ +#define FCC_PSMR_FDE ((uint)0x04000000) /* Full Duplex Enable */ +#define FCC_PSMR_MON ((uint)0x02000000) /* RMON Enable */ +#define FCC_PSMR_PRO ((uint)0x00400000) /* Promiscuous Enable */ +#define FCC_PSMR_FCE ((uint)0x00200000) /* Flow Control Enable */ +#define FCC_PSMR_RSH ((uint)0x00100000) /* Receive Short Frames */ +#define FCC_PSMR_CAM ((uint)0x00000400) /* CAM enable */ +#define FCC_PSMR_BRO ((uint)0x00000200) /* Broadcast pkt discard */ +#define FCC_PSMR_ENCRC ((uint)0x00000080) /* Use 32-bit CRC */ + +/* IIC parameter RAM. +*/ +typedef struct iic { + ushort iic_rbase; /* Rx Buffer descriptor base address */ + ushort iic_tbase; /* Tx Buffer descriptor base address */ + u_char iic_rfcr; /* Rx function code */ + u_char iic_tfcr; /* Tx function code */ + ushort iic_mrblr; /* Max receive buffer length */ + uint iic_rstate; /* Internal */ + uint iic_rdp; /* Internal */ + ushort iic_rbptr; /* Internal */ + ushort iic_rbc; /* Internal */ + uint iic_rxtmp; /* Internal */ + uint iic_tstate; /* Internal */ + uint iic_tdp; /* Internal */ + ushort iic_tbptr; /* Internal */ + ushort iic_tbc; /* Internal */ + uint iic_txtmp; /* Internal */ +} iic_t; + +/* SPI parameter RAM. +*/ +typedef struct spi { + ushort spi_rbase; /* Rx Buffer descriptor base address */ + ushort spi_tbase; /* Tx Buffer descriptor base address */ + u_char spi_rfcr; /* Rx function code */ + u_char spi_tfcr; /* Tx function code */ + ushort spi_mrblr; /* Max receive buffer length */ + uint spi_rstate; /* Internal */ + uint spi_rdp; /* Internal */ + ushort spi_rbptr; /* Internal */ + ushort spi_rbc; /* Internal */ + uint spi_rxtmp; /* Internal */ + uint spi_tstate; /* Internal */ + uint spi_tdp; /* Internal */ + ushort spi_tbptr; /* Internal */ + ushort spi_tbc; /* Internal */ + uint spi_txtmp; /* Internal */ + uint spi_res; /* Tx temp. */ + uint spi_res1[4]; /* SDMA temp. */ +} spi_t; + +/* SPI Mode register. +*/ +#define SPMODE_LOOP ((ushort)0x4000) /* Loopback */ +#define SPMODE_CI ((ushort)0x2000) /* Clock Invert */ +#define SPMODE_CP ((ushort)0x1000) /* Clock Phase */ +#define SPMODE_DIV16 ((ushort)0x0800) /* BRG/16 mode */ +#define SPMODE_REV ((ushort)0x0400) /* Reversed Data */ +#define SPMODE_MSTR ((ushort)0x0200) /* SPI Master */ +#define SPMODE_EN ((ushort)0x0100) /* Enable */ +#define SPMODE_LENMSK ((ushort)0x00f0) /* character length */ +#define SPMODE_PMMSK ((ushort)0x000f) /* prescale modulus */ + +#define SPMODE_LEN(x) ((((x)-1)&0xF)<<4) +#define SPMODE_PM(x) ((x) &0xF) + +#define SPI_EB ((u_char)0x10) /* big endian byte order */ + +#define BD_IIC_START ((ushort)0x0400) + +/*----------------------------------------------------------------------- + * CMXFCR - CMX FCC Clock Route Register 15-12 + */ +#define CMXFCR_FC1 0x40000000 /* FCC1 connection */ +#define CMXFCR_RF1CS_MSK 0x38000000 /* Receive FCC1 Clock Source Mask */ +#define CMXFCR_TF1CS_MSK 0x07000000 /* Transmit FCC1 Clock Source Mask */ +#define CMXFCR_FC2 0x00400000 /* FCC2 connection */ +#define CMXFCR_RF2CS_MSK 0x00380000 /* Receive FCC2 Clock Source Mask */ +#define CMXFCR_TF2CS_MSK 0x00070000 /* Transmit FCC2 Clock Source Mask */ +#define CMXFCR_FC3 0x00004000 /* FCC3 connection */ +#define CMXFCR_RF3CS_MSK 0x00003800 /* Receive FCC3 Clock Source Mask */ +#define CMXFCR_TF3CS_MSK 0x00000700 /* Transmit FCC3 Clock Source Mask */ + +#define CMXFCR_RF1CS_BRG5 0x00000000 /* Receive FCC1 Clock Source is BRG5 */ +#define CMXFCR_RF1CS_BRG6 0x08000000 /* Receive FCC1 Clock Source is BRG6 */ +#define CMXFCR_RF1CS_BRG7 0x10000000 /* Receive FCC1 Clock Source is BRG7 */ +#define CMXFCR_RF1CS_BRG8 0x18000000 /* Receive FCC1 Clock Source is BRG8 */ +#define CMXFCR_RF1CS_CLK9 0x20000000 /* Receive FCC1 Clock Source is CLK9 */ +#define CMXFCR_RF1CS_CLK10 0x28000000 /* Receive FCC1 Clock Source is CLK10 */ +#define CMXFCR_RF1CS_CLK11 0x30000000 /* Receive FCC1 Clock Source is CLK11 */ +#define CMXFCR_RF1CS_CLK12 0x38000000 /* Receive FCC1 Clock Source is CLK12 */ + +#define CMXFCR_TF1CS_BRG5 0x00000000 /* Transmit FCC1 Clock Source is BRG5 */ +#define CMXFCR_TF1CS_BRG6 0x01000000 /* Transmit FCC1 Clock Source is BRG6 */ +#define CMXFCR_TF1CS_BRG7 0x02000000 /* Transmit FCC1 Clock Source is BRG7 */ +#define CMXFCR_TF1CS_BRG8 0x03000000 /* Transmit FCC1 Clock Source is BRG8 */ +#define CMXFCR_TF1CS_CLK9 0x04000000 /* Transmit FCC1 Clock Source is CLK9 */ +#define CMXFCR_TF1CS_CLK10 0x05000000 /* Transmit FCC1 Clock Source is CLK10 */ +#define CMXFCR_TF1CS_CLK11 0x06000000 /* Transmit FCC1 Clock Source is CLK11 */ +#define CMXFCR_TF1CS_CLK12 0x07000000 /* Transmit FCC1 Clock Source is CLK12 */ + +#define CMXFCR_RF2CS_BRG5 0x00000000 /* Receive FCC2 Clock Source is BRG5 */ +#define CMXFCR_RF2CS_BRG6 0x00080000 /* Receive FCC2 Clock Source is BRG6 */ +#define CMXFCR_RF2CS_BRG7 0x00100000 /* Receive FCC2 Clock Source is BRG7 */ +#define CMXFCR_RF2CS_BRG8 0x00180000 /* Receive FCC2 Clock Source is BRG8 */ +#define CMXFCR_RF2CS_CLK13 0x00200000 /* Receive FCC2 Clock Source is CLK13 */ +#define CMXFCR_RF2CS_CLK14 0x00280000 /* Receive FCC2 Clock Source is CLK14 */ +#define CMXFCR_RF2CS_CLK15 0x00300000 /* Receive FCC2 Clock Source is CLK15 */ +#define CMXFCR_RF2CS_CLK16 0x00380000 /* Receive FCC2 Clock Source is CLK16 */ + +#define CMXFCR_TF2CS_BRG5 0x00000000 /* Transmit FCC2 Clock Source is BRG5 */ +#define CMXFCR_TF2CS_BRG6 0x00010000 /* Transmit FCC2 Clock Source is BRG6 */ +#define CMXFCR_TF2CS_BRG7 0x00020000 /* Transmit FCC2 Clock Source is BRG7 */ +#define CMXFCR_TF2CS_BRG8 0x00030000 /* Transmit FCC2 Clock Source is BRG8 */ +#define CMXFCR_TF2CS_CLK13 0x00040000 /* Transmit FCC2 Clock Source is CLK13 */ +#define CMXFCR_TF2CS_CLK14 0x00050000 /* Transmit FCC2 Clock Source is CLK14 */ +#define CMXFCR_TF2CS_CLK15 0x00060000 /* Transmit FCC2 Clock Source is CLK15 */ +#define CMXFCR_TF2CS_CLK16 0x00070000 /* Transmit FCC2 Clock Source is CLK16 */ + +#define CMXFCR_RF3CS_BRG5 0x00000000 /* Receive FCC3 Clock Source is BRG5 */ +#define CMXFCR_RF3CS_BRG6 0x00000800 /* Receive FCC3 Clock Source is BRG6 */ +#define CMXFCR_RF3CS_BRG7 0x00001000 /* Receive FCC3 Clock Source is BRG7 */ +#define CMXFCR_RF3CS_BRG8 0x00001800 /* Receive FCC3 Clock Source is BRG8 */ +#define CMXFCR_RF3CS_CLK13 0x00002000 /* Receive FCC3 Clock Source is CLK13 */ +#define CMXFCR_RF3CS_CLK14 0x00002800 /* Receive FCC3 Clock Source is CLK14 */ +#define CMXFCR_RF3CS_CLK15 0x00003000 /* Receive FCC3 Clock Source is CLK15 */ +#define CMXFCR_RF3CS_CLK16 0x00003800 /* Receive FCC3 Clock Source is CLK16 */ + +#define CMXFCR_TF3CS_BRG5 0x00000000 /* Transmit FCC3 Clock Source is BRG5 */ +#define CMXFCR_TF3CS_BRG6 0x00000100 /* Transmit FCC3 Clock Source is BRG6 */ +#define CMXFCR_TF3CS_BRG7 0x00000200 /* Transmit FCC3 Clock Source is BRG7 */ +#define CMXFCR_TF3CS_BRG8 0x00000300 /* Transmit FCC3 Clock Source is BRG8 */ +#define CMXFCR_TF3CS_CLK13 0x00000400 /* Transmit FCC3 Clock Source is CLK13 */ +#define CMXFCR_TF3CS_CLK14 0x00000500 /* Transmit FCC3 Clock Source is CLK14 */ +#define CMXFCR_TF3CS_CLK15 0x00000600 /* Transmit FCC3 Clock Source is CLK15 */ +#define CMXFCR_TF3CS_CLK16 0x00000700 /* Transmit FCC3 Clock Source is CLK16 */ + +/*----------------------------------------------------------------------- + * CMXSCR - CMX SCC Clock Route Register 15-14 + */ +#define CMXSCR_GR1 0x80000000 /* Grant Support of SCC1 */ +#define CMXSCR_SC1 0x40000000 /* SCC1 connection */ +#define CMXSCR_RS1CS_MSK 0x38000000 /* Receive SCC1 Clock Source Mask */ +#define CMXSCR_TS1CS_MSK 0x07000000 /* Transmit SCC1 Clock Source Mask */ +#define CMXSCR_GR2 0x00800000 /* Grant Support of SCC2 */ +#define CMXSCR_SC2 0x00400000 /* SCC2 connection */ +#define CMXSCR_RS2CS_MSK 0x00380000 /* Receive SCC2 Clock Source Mask */ +#define CMXSCR_TS2CS_MSK 0x00070000 /* Transmit SCC2 Clock Source Mask */ +#define CMXSCR_GR3 0x00008000 /* Grant Support of SCC3 */ +#define CMXSCR_SC3 0x00004000 /* SCC3 connection */ +#define CMXSCR_RS3CS_MSK 0x00003800 /* Receive SCC3 Clock Source Mask */ +#define CMXSCR_TS3CS_MSK 0x00000700 /* Transmit SCC3 Clock Source Mask */ +#define CMXSCR_GR4 0x00000080 /* Grant Support of SCC4 */ +#define CMXSCR_SC4 0x00000040 /* SCC4 connection */ +#define CMXSCR_RS4CS_MSK 0x00000038 /* Receive SCC4 Clock Source Mask */ +#define CMXSCR_TS4CS_MSK 0x00000007 /* Transmit SCC4 Clock Source Mask */ + +#define CMXSCR_RS1CS_BRG1 0x00000000 /* SCC1 Rx Clock Source is BRG1 */ +#define CMXSCR_RS1CS_BRG2 0x08000000 /* SCC1 Rx Clock Source is BRG2 */ +#define CMXSCR_RS1CS_BRG3 0x10000000 /* SCC1 Rx Clock Source is BRG3 */ +#define CMXSCR_RS1CS_BRG4 0x18000000 /* SCC1 Rx Clock Source is BRG4 */ +#define CMXSCR_RS1CS_CLK11 0x20000000 /* SCC1 Rx Clock Source is CLK11 */ +#define CMXSCR_RS1CS_CLK12 0x28000000 /* SCC1 Rx Clock Source is CLK12 */ +#define CMXSCR_RS1CS_CLK3 0x30000000 /* SCC1 Rx Clock Source is CLK3 */ +#define CMXSCR_RS1CS_CLK4 0x38000000 /* SCC1 Rx Clock Source is CLK4 */ + +#define CMXSCR_TS1CS_BRG1 0x00000000 /* SCC1 Tx Clock Source is BRG1 */ +#define CMXSCR_TS1CS_BRG2 0x01000000 /* SCC1 Tx Clock Source is BRG2 */ +#define CMXSCR_TS1CS_BRG3 0x02000000 /* SCC1 Tx Clock Source is BRG3 */ +#define CMXSCR_TS1CS_BRG4 0x03000000 /* SCC1 Tx Clock Source is BRG4 */ +#define CMXSCR_TS1CS_CLK11 0x04000000 /* SCC1 Tx Clock Source is CLK11 */ +#define CMXSCR_TS1CS_CLK12 0x05000000 /* SCC1 Tx Clock Source is CLK12 */ +#define CMXSCR_TS1CS_CLK3 0x06000000 /* SCC1 Tx Clock Source is CLK3 */ +#define CMXSCR_TS1CS_CLK4 0x07000000 /* SCC1 Tx Clock Source is CLK4 */ + +#define CMXSCR_RS2CS_BRG1 0x00000000 /* SCC2 Rx Clock Source is BRG1 */ +#define CMXSCR_RS2CS_BRG2 0x00080000 /* SCC2 Rx Clock Source is BRG2 */ +#define CMXSCR_RS2CS_BRG3 0x00100000 /* SCC2 Rx Clock Source is BRG3 */ +#define CMXSCR_RS2CS_BRG4 0x00180000 /* SCC2 Rx Clock Source is BRG4 */ +#define CMXSCR_RS2CS_CLK11 0x00200000 /* SCC2 Rx Clock Source is CLK11 */ +#define CMXSCR_RS2CS_CLK12 0x00280000 /* SCC2 Rx Clock Source is CLK12 */ +#define CMXSCR_RS2CS_CLK3 0x00300000 /* SCC2 Rx Clock Source is CLK3 */ +#define CMXSCR_RS2CS_CLK4 0x00380000 /* SCC2 Rx Clock Source is CLK4 */ + +#define CMXSCR_TS2CS_BRG1 0x00000000 /* SCC2 Tx Clock Source is BRG1 */ +#define CMXSCR_TS2CS_BRG2 0x00010000 /* SCC2 Tx Clock Source is BRG2 */ +#define CMXSCR_TS2CS_BRG3 0x00020000 /* SCC2 Tx Clock Source is BRG3 */ +#define CMXSCR_TS2CS_BRG4 0x00030000 /* SCC2 Tx Clock Source is BRG4 */ +#define CMXSCR_TS2CS_CLK11 0x00040000 /* SCC2 Tx Clock Source is CLK11 */ +#define CMXSCR_TS2CS_CLK12 0x00050000 /* SCC2 Tx Clock Source is CLK12 */ +#define CMXSCR_TS2CS_CLK3 0x00060000 /* SCC2 Tx Clock Source is CLK3 */ +#define CMXSCR_TS2CS_CLK4 0x00070000 /* SCC2 Tx Clock Source is CLK4 */ + +#define CMXSCR_RS3CS_BRG1 0x00000000 /* SCC3 Rx Clock Source is BRG1 */ +#define CMXSCR_RS3CS_BRG2 0x00000800 /* SCC3 Rx Clock Source is BRG2 */ +#define CMXSCR_RS3CS_BRG3 0x00001000 /* SCC3 Rx Clock Source is BRG3 */ +#define CMXSCR_RS3CS_BRG4 0x00001800 /* SCC3 Rx Clock Source is BRG4 */ +#define CMXSCR_RS3CS_CLK5 0x00002000 /* SCC3 Rx Clock Source is CLK5 */ +#define CMXSCR_RS3CS_CLK6 0x00002800 /* SCC3 Rx Clock Source is CLK6 */ +#define CMXSCR_RS3CS_CLK7 0x00003000 /* SCC3 Rx Clock Source is CLK7 */ +#define CMXSCR_RS3CS_CLK8 0x00003800 /* SCC3 Rx Clock Source is CLK8 */ + +#define CMXSCR_TS3CS_BRG1 0x00000000 /* SCC3 Tx Clock Source is BRG1 */ +#define CMXSCR_TS3CS_BRG2 0x00000100 /* SCC3 Tx Clock Source is BRG2 */ +#define CMXSCR_TS3CS_BRG3 0x00000200 /* SCC3 Tx Clock Source is BRG3 */ +#define CMXSCR_TS3CS_BRG4 0x00000300 /* SCC3 Tx Clock Source is BRG4 */ +#define CMXSCR_TS3CS_CLK5 0x00000400 /* SCC3 Tx Clock Source is CLK5 */ +#define CMXSCR_TS3CS_CLK6 0x00000500 /* SCC3 Tx Clock Source is CLK6 */ +#define CMXSCR_TS3CS_CLK7 0x00000600 /* SCC3 Tx Clock Source is CLK7 */ +#define CMXSCR_TS3CS_CLK8 0x00000700 /* SCC3 Tx Clock Source is CLK8 */ + +#define CMXSCR_RS4CS_BRG1 0x00000000 /* SCC4 Rx Clock Source is BRG1 */ +#define CMXSCR_RS4CS_BRG2 0x00000008 /* SCC4 Rx Clock Source is BRG2 */ +#define CMXSCR_RS4CS_BRG3 0x00000010 /* SCC4 Rx Clock Source is BRG3 */ +#define CMXSCR_RS4CS_BRG4 0x00000018 /* SCC4 Rx Clock Source is BRG4 */ +#define CMXSCR_RS4CS_CLK5 0x00000020 /* SCC4 Rx Clock Source is CLK5 */ +#define CMXSCR_RS4CS_CLK6 0x00000028 /* SCC4 Rx Clock Source is CLK6 */ +#define CMXSCR_RS4CS_CLK7 0x00000030 /* SCC4 Rx Clock Source is CLK7 */ +#define CMXSCR_RS4CS_CLK8 0x00000038 /* SCC4 Rx Clock Source is CLK8 */ + +#define CMXSCR_TS4CS_BRG1 0x00000000 /* SCC4 Tx Clock Source is BRG1 */ +#define CMXSCR_TS4CS_BRG2 0x00000001 /* SCC4 Tx Clock Source is BRG2 */ +#define CMXSCR_TS4CS_BRG3 0x00000002 /* SCC4 Tx Clock Source is BRG3 */ +#define CMXSCR_TS4CS_BRG4 0x00000003 /* SCC4 Tx Clock Source is BRG4 */ +#define CMXSCR_TS4CS_CLK5 0x00000004 /* SCC4 Tx Clock Source is CLK5 */ +#define CMXSCR_TS4CS_CLK6 0x00000005 /* SCC4 Tx Clock Source is CLK6 */ +#define CMXSCR_TS4CS_CLK7 0x00000006 /* SCC4 Tx Clock Source is CLK7 */ +#define CMXSCR_TS4CS_CLK8 0x00000007 /* SCC4 Tx Clock Source is CLK8 */ + +#endif /* __CPM_85XX__ */ diff --git a/arch/ppc/include/asm/e300.h b/arch/ppc/include/asm/e300.h new file mode 100644 index 0000000..bfef4df --- /dev/null +++ b/arch/ppc/include/asm/e300.h @@ -0,0 +1,91 @@ +/* + * Copyright 2004 Freescale Semiconductor, Inc. + * Liberty Eran (liberty@freescale.com) + */ + +#ifndef __E300_H__ +#define __E300_H__ + +#define PVR_E300C1 0x80830000 +#define PVR_E300C2 0x80840000 +#define PVR_E300C3 0x80850000 +#define PVR_E300C4 0x80860000 + +/* + * Hardware Implementation-Dependent Register 0 (HID0) + */ + +/* #define HID0 1008 already defined in processor.h */ +#define HID0_MASK_MACHINE_CHECK 0x00000000 +#define HID0_ENABLE_MACHINE_CHECK 0x80000000 + +#define HID0_DISABLE_CACHE_PARITY 0x00000000 +#define HID0_ENABLE_CACHE_PARITY 0x40000000 + +#define HID0_DISABLE_ADDRESS_PARITY 0x00000000 /* on mpc8349ads must be disabled */ +#define HID0_ENABLE_ADDRESS_PARITY 0x20000000 + +#define HID0_DISABLE_DATA_PARITY 0x00000000 /* on mpc8349ads must be disabled */ +#define HID0_ENABLE_DATE_PARITY 0x10000000 + +#define HID0_CORE_CLK_OUT 0x00000000 +#define HID0_CORE_CLK_OUT_DIV_2 0x08000000 + +#define HID0_ENABLE_ARTRY_OUT_PRECHARGE 0x00000000 /* on mpc8349ads must be enabled */ +#define HID0_DISABLE_ARTRY_OUT_PRECHARGE 0x01000000 + +#define HID0_DISABLE_DOSE_MODE 0x00000000 +#define HID0_ENABLE_DOSE_MODE 0x00800000 + +#define HID0_DISABLE_NAP_MODE 0x00000000 +#define HID0_ENABLE_NAP_MODE 0x00400000 + +#define HID0_DISABLE_SLEEP_MODE 0x00000000 +#define HID0_ENABLE_SLEEP_MODE 0x00200000 + +#define HID0_DISABLE_DYNAMIC_POWER_MANAGMENT 0x00000000 +#define HID0_ENABLE_DYNAMIC_POWER_MANAGMENT 0x00100000 + +#define HID0_SOFT_RESET 0x00010000 + +#define HID0_DISABLE_INSTRUCTION_CACHE 0x00000000 +#define HID0_ENABLE_INSTRUCTION_CACHE 0x00008000 + +#define HID0_DISABLE_DATA_CACHE 0x00000000 +#define HID0_ENABLE_DATA_CACHE 0x00004000 + +#define HID0_LOCK_INSTRUCTION_CACHE 0x00002000 + +#define HID0_LOCK_DATA_CACHE 0x00001000 + +#define HID0_INVALIDATE_INSTRUCTION_CACHE 0x00000800 + +#define HID0_INVALIDATE_DATA_CACHE 0x00000400 + +#define HID0_DISABLE_M_BIT 0x00000000 +#define HID0_ENABLE_M_BIT 0x00000080 + +#define HID0_FBIOB 0x00000010 + +#define HID0_DISABLE_ADDRESS_BROADCAST 0x00000000 +#define HID0_ENABLE_ADDRESS_BROADCAST 0x00000008 + +#define HID0_ENABLE_NOOP_DCACHE_INSTRUCTION 0x00000000 +#define HID0_DISABLE_NOOP_DCACHE_INSTRUCTION 0x00000001 + +/* + * Hardware Implementation-Dependent Register 2 (HID2) + */ +#define HID2 1011 + +#define HID2_LET 0x08000000 +#define HID2_HBE 0x00040000 +#define HID2_IWLCK_000 0x00000000 /* no ways locked */ +#define HID2_IWLCK_001 0x00002000 /* way 0 locked */ +#define HID2_IWLCK_010 0x00004000 /* way 0 through way 1 locked */ +#define HID2_IWLCK_011 0x00006000 /* way 0 through way 2 locked */ +#define HID2_IWLCK_100 0x00008000 /* way 0 through way 3 locked */ +#define HID2_IWLCK_101 0x0000A000 /* way 0 through way 4 locked */ +#define HID2_IWLCK_110 0x0000C000 /* way 0 through way 5 locked */ + +#endif /* __E300_H__ */ diff --git a/arch/ppc/include/asm/errno.h b/arch/ppc/include/asm/errno.h new file mode 100644 index 0000000..4c82b50 --- /dev/null +++ b/arch/ppc/include/asm/errno.h @@ -0,0 +1 @@ +#include <asm-generic/errno.h> diff --git a/arch/ppc/include/asm/fsl_ddr_dimm_params.h b/arch/ppc/include/asm/fsl_ddr_dimm_params.h new file mode 100644 index 0000000..55923e0 --- /dev/null +++ b/arch/ppc/include/asm/fsl_ddr_dimm_params.h @@ -0,0 +1,91 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#ifndef DDR2_DIMM_PARAMS_H +#define DDR2_DIMM_PARAMS_H + +/* Parameters for a DDR2 dimm computed from the SPD */ +typedef struct dimm_params_s { + + /* DIMM organization parameters */ + char mpart[19]; /* guaranteed null terminated */ + + unsigned int n_ranks; + unsigned long long rank_density; + unsigned long long capacity; + unsigned int data_width; + unsigned int primary_sdram_width; + unsigned int ec_sdram_width; + unsigned int registered_dimm; + + /* SDRAM device parameters */ + unsigned int n_row_addr; + unsigned int n_col_addr; + unsigned int edc_config; /* 0 = none, 1 = parity, 2 = ECC */ + unsigned int n_banks_per_sdram_device; + unsigned int burst_lengths_bitmask; /* BL=4 bit 2, BL=8 = bit 3 */ + unsigned int row_density; + + /* used in computing base address of DIMMs */ + unsigned long long base_address; + /* mirrored DIMMs */ + unsigned int mirrored_dimm; /* only for ddr3 */ + + /* DIMM timing parameters */ + + unsigned int mtb_ps; /* medium timebase ps, only for ddr3 */ + unsigned int tAA_ps; /* minimum CAS latency time, only for ddr3 */ + unsigned int tFAW_ps; /* four active window delay, only for ddr3 */ + + /* + * SDRAM clock periods + * The range for these are 1000-10000 so a short should be sufficient + */ + unsigned int tCKmin_X_ps; + unsigned int tCKmin_X_minus_1_ps; + unsigned int tCKmin_X_minus_2_ps; + unsigned int tCKmax_ps; + + /* SPD-defined CAS latencies */ + unsigned int caslat_X; + unsigned int caslat_X_minus_1; + unsigned int caslat_X_minus_2; + + unsigned int caslat_lowest_derated; /* Derated CAS latency */ + + /* basic timing parameters */ + unsigned int tRCD_ps; + unsigned int tRP_ps; + unsigned int tRAS_ps; + + unsigned int tWR_ps; /* maximum = 63750 ps */ + unsigned int tWTR_ps; /* maximum = 63750 ps */ + unsigned int tRFC_ps; /* max = 255 ns + 256 ns + .75 ns + = 511750 ps */ + + unsigned int tRRD_ps; /* maximum = 63750 ps */ + unsigned int tRC_ps; /* maximum = 254 ns + .75 ns = 254750 ps */ + + unsigned int refresh_rate_ps; + + /* DDR3 doesn't need these as below */ + unsigned int tIS_ps; /* byte 32, spd->ca_setup */ + unsigned int tIH_ps; /* byte 33, spd->ca_hold */ + unsigned int tDS_ps; /* byte 34, spd->data_setup */ + unsigned int tDH_ps; /* byte 35, spd->data_hold */ + unsigned int tRTP_ps; /* byte 38, spd->trtp */ + unsigned int tDQSQ_max_ps; /* byte 44, spd->tdqsq */ + unsigned int tQHS_ps; /* byte 45, spd->tqhs */ +} dimm_params_t; + +extern unsigned int ddr_compute_dimm_parameters( + const generic_spd_eeprom_t *spd, + dimm_params_t *pdimm, + unsigned int dimm_number); + +#endif diff --git a/arch/ppc/include/asm/fsl_ddr_sdram.h b/arch/ppc/include/asm/fsl_ddr_sdram.h new file mode 100644 index 0000000..3216a50 --- /dev/null +++ b/arch/ppc/include/asm/fsl_ddr_sdram.h @@ -0,0 +1,207 @@ +/* + * Copyright 2008-2009 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#ifndef FSL_DDR_MEMCTL_H +#define FSL_DDR_MEMCTL_H + +/* + * Pick a basic DDR Technology. + */ +#include <ddr_spd.h> + +#define SDRAM_TYPE_DDR1 2 +#define SDRAM_TYPE_DDR2 3 +#define SDRAM_TYPE_LPDDR1 6 +#define SDRAM_TYPE_DDR3 7 + +#define DDR_BL4 4 /* burst length 4 */ +#define DDR_BC4 DDR_BL4 /* burst chop for ddr3 */ +#define DDR_OTF 6 /* on-the-fly BC4 and BL8 */ +#define DDR_BL8 8 /* burst length 8 */ + +#if defined(CONFIG_FSL_DDR1) +#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR (1) +typedef ddr1_spd_eeprom_t generic_spd_eeprom_t; +#ifndef CONFIG_FSL_SDRAM_TYPE +#define CONFIG_FSL_SDRAM_TYPE SDRAM_TYPE_DDR1 +#endif +#elif defined(CONFIG_FSL_DDR2) +#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR (3) +typedef ddr2_spd_eeprom_t generic_spd_eeprom_t; +#ifndef CONFIG_FSL_SDRAM_TYPE +#define CONFIG_FSL_SDRAM_TYPE SDRAM_TYPE_DDR2 +#endif +#elif defined(CONFIG_FSL_DDR3) +#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR (3) /* FIXME */ +typedef ddr3_spd_eeprom_t generic_spd_eeprom_t; +#ifndef CONFIG_FSL_SDRAM_TYPE +#define CONFIG_FSL_SDRAM_TYPE SDRAM_TYPE_DDR3 +#endif +#endif /* #if defined(CONFIG_FSL_DDR1) */ + +/* define bank(chip select) interleaving mode */ +#define FSL_DDR_CS0_CS1 0x40 +#define FSL_DDR_CS2_CS3 0x20 +#define FSL_DDR_CS0_CS1_AND_CS2_CS3 (FSL_DDR_CS0_CS1 | FSL_DDR_CS2_CS3) +#define FSL_DDR_CS0_CS1_CS2_CS3 (FSL_DDR_CS0_CS1_AND_CS2_CS3 | 0x04) + +/* define memory controller interleaving mode */ +#define FSL_DDR_CACHE_LINE_INTERLEAVING 0x0 +#define FSL_DDR_PAGE_INTERLEAVING 0x1 +#define FSL_DDR_BANK_INTERLEAVING 0x2 +#define FSL_DDR_SUPERBANK_INTERLEAVING 0x3 + +/* DDR_SDRAM_CFG - DDR SDRAM Control Configuration + */ +#define SDRAM_CFG_MEM_EN 0x80000000 +#define SDRAM_CFG_SREN 0x40000000 +#define SDRAM_CFG_ECC_EN 0x20000000 +#define SDRAM_CFG_RD_EN 0x10000000 +#define SDRAM_CFG_SDRAM_TYPE_DDR1 0x02000000 +#define SDRAM_CFG_SDRAM_TYPE_DDR2 0x03000000 +#define SDRAM_CFG_SDRAM_TYPE_MASK 0x07000000 +#define SDRAM_CFG_SDRAM_TYPE_SHIFT 24 +#define SDRAM_CFG_DYN_PWR 0x00200000 +#define SDRAM_CFG_32_BE 0x00080000 +#define SDRAM_CFG_8_BE 0x00040000 +#define SDRAM_CFG_NCAP 0x00020000 +#define SDRAM_CFG_2T_EN 0x00008000 +#define SDRAM_CFG_BI 0x00000001 + +#if defined(CONFIG_P4080) +#define RD_TO_PRE_MASK 0xf +#define RD_TO_PRE_SHIFT 13 +#define WR_DATA_DELAY_MASK 0xf +#define WR_DATA_DELAY_SHIFT 9 +#else +#define RD_TO_PRE_MASK 0x7 +#define RD_TO_PRE_SHIFT 13 +#define WR_DATA_DELAY_MASK 0x7 +#define WR_DATA_DELAY_SHIFT 10 +#endif + +/* Record of register values computed */ +typedef struct fsl_ddr_cfg_regs_s { + struct { + unsigned int bnds; + unsigned int config; + unsigned int config_2; + } cs[CONFIG_CHIP_SELECTS_PER_CTRL]; + unsigned int timing_cfg_3; + unsigned int timing_cfg_0; + unsigned int timing_cfg_1; + unsigned int timing_cfg_2; + unsigned int ddr_sdram_cfg; + unsigned int ddr_sdram_cfg_2; + unsigned int ddr_sdram_mode; + unsigned int ddr_sdram_mode_2; + unsigned int ddr_sdram_md_cntl; + unsigned int ddr_sdram_interval; + unsigned int ddr_data_init; + unsigned int ddr_sdram_clk_cntl; + unsigned int ddr_init_addr; + unsigned int ddr_init_ext_addr; + unsigned int timing_cfg_4; + unsigned int timing_cfg_5; + unsigned int ddr_zq_cntl; + unsigned int ddr_wrlvl_cntl; + unsigned int ddr_sr_cntr; + unsigned int ddr_sdram_rcw_1; + unsigned int ddr_sdram_rcw_2; +} fsl_ddr_cfg_regs_t; + +typedef struct memctl_options_partial_s { + unsigned int all_DIMMs_ECC_capable; + unsigned int all_DIMMs_tCKmax_ps; + unsigned int all_DIMMs_burst_lengths_bitmask; + unsigned int all_DIMMs_registered; + unsigned int all_DIMMs_unbuffered; + /* unsigned int lowest_common_SPD_caslat; */ + unsigned int all_DIMMs_minimum_tRCD_ps; +} memctl_options_partial_t; + +/* + * Generalized parameters for memory controller configuration, + * might be a little specific to the FSL memory controller + */ +typedef struct memctl_options_s { + /* + * Memory organization parameters + * + * if DIMM is present in the system + * where DIMMs are with respect to chip select + * where chip selects are with respect to memory boundaries + */ + unsigned int registered_dimm_en; /* use registered DIMM support */ + + /* Options local to a Chip Select */ + struct cs_local_opts_s { + unsigned int auto_precharge; + unsigned int odt_rd_cfg; + unsigned int odt_wr_cfg; + } cs_local_opts[CONFIG_CHIP_SELECTS_PER_CTRL]; + + /* Special configurations for chip select */ + unsigned int memctl_interleaving; + unsigned int memctl_interleaving_mode; + unsigned int ba_intlv_ctl; + + /* Operational mode parameters */ + unsigned int ECC_mode; /* Use ECC? */ + /* Initialize ECC using memory controller? */ + unsigned int ECC_init_using_memctl; + unsigned int DQS_config; /* Use DQS? maybe only with DDR2? */ + /* SREN - self-refresh during sleep */ + unsigned int self_refresh_in_sleep; + unsigned int dynamic_power; /* DYN_PWR */ + /* memory data width to use (16-bit, 32-bit, 64-bit) */ + unsigned int data_bus_width; + unsigned int burst_length; /* BL4, OTF and BL8 */ + /* On-The-Fly Burst Chop enable */ + unsigned int OTF_burst_chop_en; + /* mirrior DIMMs for DDR3 */ + unsigned int mirrored_dimm; + + /* Global Timing Parameters */ + unsigned int cas_latency_override; + unsigned int cas_latency_override_value; + unsigned int use_derated_caslat; + unsigned int additive_latency_override; + unsigned int additive_latency_override_value; + + unsigned int clk_adjust; /* */ + unsigned int cpo_override; + unsigned int write_data_delay; /* DQS adjust */ + + unsigned int wrlvl_override; + unsigned int wrlvl_sample; /* Write leveling */ + unsigned int wrlvl_start; + + unsigned int half_strength_driver_enable; + unsigned int twoT_en; + unsigned int threeT_en; + unsigned int bstopre; + unsigned int tCKE_clock_pulse_width_ps; /* tCKE */ + unsigned int tFAW_window_four_activates_ps; /* tFAW -- FOUR_ACT */ + + /* Rtt impedance */ + unsigned int rtt_override; /* rtt_override enable */ + unsigned int rtt_override_value; /* that is Rtt_Nom for DDR3 */ + unsigned int rtt_wr_override_value; /* this is Rtt_WR for DDR3 */ + + /* Automatic self refresh */ + unsigned int auto_self_refresh_en; + unsigned int sr_it; + /* ZQ calibration */ + unsigned int zq_en; + /* Write leveling */ + unsigned int wrlvl_en; +} memctl_options_t; + +extern phys_size_t fsl_ddr_sdram(void); +#endif diff --git a/arch/ppc/include/asm/fsl_dma.h b/arch/ppc/include/asm/fsl_dma.h new file mode 100644 index 0000000..1164191 --- /dev/null +++ b/arch/ppc/include/asm/fsl_dma.h @@ -0,0 +1,141 @@ +/* + * Freescale DMA Controller + * + * Copyright 2006 Freescale Semiconductor, Inc. + * + * This software may be used and distributed according to the + * terms of the GNU Public License, Version 2, incorporated + * herein by reference. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _ASM_FSL_DMA_H_ +#define _ASM_FSL_DMA_H_ + +#include <asm/types.h> + +#ifdef CONFIG_MPC83xx +typedef struct fsl_dma { + uint mr; /* DMA mode register */ +#define FSL_DMA_MR_CS 0x00000001 /* Channel start */ +#define FSL_DMA_MR_CC 0x00000002 /* Channel continue */ +#define FSL_DMA_MR_CTM 0x00000004 /* Channel xfer mode */ +#define FSL_DMA_MR_CTM_DIRECT 0x00000004 /* Direct channel xfer mode */ +#define FSL_DMA_MR_EOTIE 0x00000080 /* End-of-transfer interrupt en */ +#define FSL_DMA_MR_PRC_MASK 0x00000c00 /* PCI read command */ +#define FSL_DMA_MR_SAHE 0x00001000 /* Source addr hold enable */ +#define FSL_DMA_MR_DAHE 0x00002000 /* Dest addr hold enable */ +#define FSL_DMA_MR_SAHTS_MASK 0x0000c000 /* Source addr hold xfer size */ +#define FSL_DMA_MR_DAHTS_MASK 0x00030000 /* Dest addr hold xfer size */ +#define FSL_DMA_MR_EMS_EN 0x00040000 /* Ext master start en */ +#define FSL_DMA_MR_IRQS 0x00080000 /* Interrupt steer */ +#define FSL_DMA_MR_DMSEN 0x00100000 /* Direct mode snooping en */ +#define FSL_DMA_MR_BWC_MASK 0x00e00000 /* Bandwidth/pause ctl */ +#define FSL_DMA_MR_DRCNT 0x0f000000 /* DMA request count */ + uint sr; /* DMA status register */ +#define FSL_DMA_SR_EOCDI 0x00000001 /* End-of-chain/direct interrupt */ +#define FSL_DMA_SR_EOSI 0x00000002 /* End-of-segment interrupt */ +#define FSL_DMA_SR_CB 0x00000004 /* Channel busy */ +#define FSL_DMA_SR_TE 0x00000080 /* Transfer error */ + uint cdar; /* DMA current descriptor address register */ + char res0[4]; + uint sar; /* DMA source address register */ + char res1[4]; + uint dar; /* DMA destination address register */ + char res2[4]; + uint bcr; /* DMA byte count register */ + uint ndar; /* DMA next descriptor address register */ + uint gsr; /* DMA general status register (DMA3 ONLY!) */ + char res3[84]; +} fsl_dma_t; +#else +typedef struct fsl_dma { + uint mr; /* DMA mode register */ +#define FSL_DMA_MR_CS 0x00000001 /* Channel start */ +#define FSL_DMA_MR_CC 0x00000002 /* Channel continue */ +#define FSL_DMA_MR_CTM 0x00000004 /* Channel xfer mode */ +#define FSL_DMA_MR_CTM_DIRECT 0x00000004 /* Direct channel xfer mode */ +#define FSL_DMA_MR_CA 0x00000008 /* Channel abort */ +#define FSL_DMA_MR_CDSM 0x00000010 +#define FSL_DMA_MR_XFE 0x00000020 /* Extended features en */ +#define FSL_DMA_MR_EIE 0x00000040 /* Error interrupt en */ +#define FSL_DMA_MR_EOLSIE 0x00000080 /* End-of-lists interrupt en */ +#define FSL_DMA_MR_EOLNIE 0x00000100 /* End-of-links interrupt en */ +#define FSL_DMA_MR_EOSIE 0x00000200 /* End-of-seg interrupt en */ +#define FSL_DMA_MR_SRW 0x00000400 /* Single register write */ +#define FSL_DMA_MR_SAHE 0x00001000 /* Source addr hold enable */ +#define FSL_DMA_MR_DAHE 0x00002000 /* Dest addr hold enable */ +#define FSL_DMA_MR_SAHTS_MASK 0x0000c000 /* Source addr hold xfer size */ +#define FSL_DMA_MR_DAHTS_MASK 0x00030000 /* Dest addr hold xfer size */ +#define FSL_DMA_MR_EMS_EN 0x00040000 /* Ext master start en */ +#define FSL_DMA_MR_EMP_EN 0x00200000 /* Ext master pause en */ +#define FSL_DMA_MR_BWC_MASK 0x0f000000 /* Bandwidth/pause ctl */ +#define FSL_DMA_MR_BWC_DIS 0x0f000000 /* Bandwidth/pause ctl disable */ + uint sr; /* DMA status register */ +#define FSL_DMA_SR_EOLSI 0x00000001 /* End-of-list interrupt */ +#define FSL_DMA_SR_EOSI 0x00000002 /* End-of-segment interrupt */ +#define FSL_DMA_SR_CB 0x00000004 /* Channel busy */ +#define FSL_DMA_SR_EOLNI 0x00000008 /* End-of-links interrupt */ +#define FSL_DMA_SR_PE 0x00000010 /* Programming error */ +#define FSL_DMA_SR_CH 0x00000020 /* Channel halted */ +#define FSL_DMA_SR_TE 0x00000080 /* Transfer error */ + char res0[4]; + uint clndar; /* DMA current link descriptor address register */ + uint satr; /* DMA source attributes register */ +#define FSL_DMA_SATR_ESAD_MASK 0x000001ff /* Extended source addr */ +#define FSL_DMA_SATR_SREAD_NO_SNOOP 0x00040000 /* Read, don't snoop */ +#define FSL_DMA_SATR_SREAD_SNOOP 0x00050000 /* Read, snoop */ +#define FSL_DMA_SATR_SREAD_UNLOCK 0x00070000 /* Read, unlock l2 */ +#define FSL_DMA_SATR_STRAN_MASK 0x00f00000 /* Source interface */ +#define FSL_DMA_SATR_SSME 0x01000000 /* Source stride en */ +#define FSL_DMA_SATR_SPCIORDER 0x02000000 /* PCI transaction order */ +#define FSL_DMA_SATR_STFLOWLVL_MASK 0x0c000000 /* RIO flow level */ +#define FSL_DMA_SATR_SBPATRMU 0x20000000 /* Bypass ATMU */ + uint sar; /* DMA source address register */ + uint datr; /* DMA destination attributes register */ +#define FSL_DMA_DATR_EDAD_MASK 0x000001ff /* Extended dest addr */ +#define FSL_DMA_DATR_DWRITE_NO_SNOOP 0x00040000 /* Write, don't snoop */ +#define FSL_DMA_DATR_DWRITE_SNOOP 0x00050000 /* Write, snoop */ +#define FSL_DMA_DATR_DWRITE_ALLOC 0x00060000 /* Write, alloc l2 */ +#define FSL_DMA_DATR_DWRITE_LOCK 0x00070000 /* Write, lock l2 */ +#define FSL_DMA_DATR_DTRAN_MASK 0x00f00000 /* Dest interface */ +#define FSL_DMA_DATR_DSME 0x01000000 /* Dest stride en */ +#define FSL_DMA_DATR_DPCIORDER 0x02000000 /* PCI transaction order */ +#define FSL_DMA_DATR_DTFLOWLVL_MASK 0x0c000000 /* RIO flow level */ +#define FSL_DMA_DATR_DBPATRMU 0x20000000 /* Bypass ATMU */ + uint dar; /* DMA destination address register */ + uint bcr; /* DMA byte count register */ + char res1[4]; + uint nlndar; /* DMA next link descriptor address register */ + char res2[8]; + uint clabdar; /* DMA current List - alternate base descriptor address Register */ + char res3[4]; + uint nlsdar; /* DMA next list descriptor address register */ + uint ssr; /* DMA source stride register */ + uint dsr; /* DMA destination stride register */ + char res4[56]; +} fsl_dma_t; +#endif /* !CONFIG_MPC83xx */ + +#ifdef CONFIG_FSL_DMA +void dma_init(void); +int dmacpy(phys_addr_t dest, phys_addr_t src, phys_size_t n); +#if (defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)) +void dma_meminit(uint val, uint size); +#endif +#endif + +#endif /* _ASM_DMA_H_ */ diff --git a/arch/ppc/include/asm/fsl_i2c.h b/arch/ppc/include/asm/fsl_i2c.h new file mode 100644 index 0000000..4f71341 --- /dev/null +++ b/arch/ppc/include/asm/fsl_i2c.h @@ -0,0 +1,86 @@ +/* + * Freescale I2C Controller + * + * Copyright 2006 Freescale Semiconductor, Inc. + * + * Based on earlier versions by Gleb Natapov <gnatapov@mrv.com>, + * Xianghua Xiao <x.xiao@motorola.com>, Eran Liberty (liberty@freescale.com), + * and Jeff Brown. + * Some bits are taken from linux driver writen by adrian@humboldt.co.uk. + * + * This software may be used and distributed according to the + * terms of the GNU Public License, Version 2, incorporated + * herein by reference. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _ASM_FSL_I2C_H_ +#define _ASM_FSL_I2C_H_ + +#include <asm/types.h> + +typedef struct fsl_i2c { + + u8 adr; /* I2C slave address */ + u8 res0[3]; +#define I2C_ADR 0xFE +#define I2C_ADR_SHIFT 1 +#define I2C_ADR_RES ~(I2C_ADR) + + u8 fdr; /* I2C frequency divider register */ + u8 res1[3]; +#define IC2_FDR 0x3F +#define IC2_FDR_SHIFT 0 +#define IC2_FDR_RES ~(IC2_FDR) + + u8 cr; /* I2C control redister */ + u8 res2[3]; +#define I2C_CR_MEN 0x80 +#define I2C_CR_MIEN 0x40 +#define I2C_CR_MSTA 0x20 +#define I2C_CR_MTX 0x10 +#define I2C_CR_TXAK 0x08 +#define I2C_CR_RSTA 0x04 +#define I2C_CR_BCST 0x01 + + u8 sr; /* I2C status register */ + u8 res3[3]; +#define I2C_SR_MCF 0x80 +#define I2C_SR_MAAS 0x40 +#define I2C_SR_MBB 0x20 +#define I2C_SR_MAL 0x10 +#define I2C_SR_BCSTM 0x08 +#define I2C_SR_SRW 0x04 +#define I2C_SR_MIF 0x02 +#define I2C_SR_RXAK 0x01 + + u8 dr; /* I2C data register */ + u8 res4[3]; +#define I2C_DR 0xFF +#define I2C_DR_SHIFT 0 +#define I2C_DR_RES ~(I2C_DR) + + u8 dfsrr; /* I2C digital filter sampling rate register */ + u8 res5[3]; +#define I2C_DFSRR 0x3F +#define I2C_DFSRR_SHIFT 0 +#define I2C_DFSRR_RES ~(I2C_DR) + + /* Fill out the reserved block */ + u8 res6[0xE8]; +} fsl_i2c_t; + +#endif /* _ASM_I2C_H_ */ diff --git a/arch/ppc/include/asm/fsl_law.h b/arch/ppc/include/asm/fsl_law.h new file mode 100644 index 0000000..34c56a2 --- /dev/null +++ b/arch/ppc/include/asm/fsl_law.h @@ -0,0 +1,120 @@ +/* + * Copyright 2008-2009 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#ifndef _FSL_LAW_H_ +#define _FSL_LAW_H_ + +#include <asm/io.h> + +#define LAW_EN 0x80000000 + +#define SET_LAW_ENTRY(idx, a, sz, trgt) \ + { .index = idx, .addr = a, .size = sz, .trgt_id = trgt } + +#define SET_LAW(a, sz, trgt) \ + { .index = -1, .addr = a, .size = sz, .trgt_id = trgt } + +enum law_size { + LAW_SIZE_4K = 0xb, + LAW_SIZE_8K, + LAW_SIZE_16K, + LAW_SIZE_32K, + LAW_SIZE_64K, + LAW_SIZE_128K, + LAW_SIZE_256K, + LAW_SIZE_512K, + LAW_SIZE_1M, + LAW_SIZE_2M, + LAW_SIZE_4M, + LAW_SIZE_8M, + LAW_SIZE_16M, + LAW_SIZE_32M, + LAW_SIZE_64M, + LAW_SIZE_128M, + LAW_SIZE_256M, + LAW_SIZE_512M, + LAW_SIZE_1G, + LAW_SIZE_2G, + LAW_SIZE_4G, + LAW_SIZE_8G, + LAW_SIZE_16G, + LAW_SIZE_32G, +}; + +#define law_size_bits(sz) (__ilog2_u64(sz) - 1) + +#ifdef CONFIG_FSL_CORENET +enum law_trgt_if { + LAW_TRGT_IF_PCIE_1 = 0x00, + LAW_TRGT_IF_PCIE_2 = 0x01, + LAW_TRGT_IF_PCIE_3 = 0x02, + LAW_TRGT_IF_RIO_1 = 0x08, + LAW_TRGT_IF_RIO_2 = 0x09, + + LAW_TRGT_IF_DDR_1 = 0x10, + LAW_TRGT_IF_DDR_2 = 0x11, /* 2nd controller */ + LAW_TRGT_IF_DDR_INTRLV = 0x14, + + LAW_TRGT_IF_BMAN = 0x18, + LAW_TRGT_IF_DCSR = 0x1d, + LAW_TRGT_IF_LBC = 0x1f, + LAW_TRGT_IF_QMAN = 0x3c, +}; +#define LAW_TRGT_IF_DDR LAW_TRGT_IF_DDR_1 +#else +enum law_trgt_if { + LAW_TRGT_IF_PCI = 0x00, + LAW_TRGT_IF_PCI_2 = 0x01, +#ifndef CONFIG_MPC8641 + LAW_TRGT_IF_PCIE_1 = 0x02, +#endif +#if !defined(CONFIG_MPC8572) && !defined(CONFIG_P2020) + LAW_TRGT_IF_PCIE_3 = 0x03, +#endif + LAW_TRGT_IF_LBC = 0x04, + LAW_TRGT_IF_CCSR = 0x08, + LAW_TRGT_IF_DDR_INTRLV = 0x0b, + LAW_TRGT_IF_RIO = 0x0c, + LAW_TRGT_IF_RIO_2 = 0x0d, + LAW_TRGT_IF_DDR = 0x0f, + LAW_TRGT_IF_DDR_2 = 0x16, /* 2nd controller */ +}; +#define LAW_TRGT_IF_DDR_1 LAW_TRGT_IF_DDR +#define LAW_TRGT_IF_PCI_1 LAW_TRGT_IF_PCI +#define LAW_TRGT_IF_PCIX LAW_TRGT_IF_PCI +#define LAW_TRGT_IF_PCIE_2 LAW_TRGT_IF_PCI_2 + +#ifdef CONFIG_MPC8641 +#define LAW_TRGT_IF_PCIE_1 LAW_TRGT_IF_PCI +#endif + +#if defined(CONFIG_MPC8572) || defined(CONFIG_P2020) +#define LAW_TRGT_IF_PCIE_3 LAW_TRGT_IF_PCI +#endif +#endif /* CONFIG_FSL_CORENET */ + +struct law_entry { + int index; + phys_addr_t addr; + enum law_size size; + enum law_trgt_if trgt_id; +}; + +extern void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id); +extern int set_next_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id); +extern int set_last_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id); +extern int set_ddr_laws(u64 start, u64 sz, enum law_trgt_if id); +extern struct law_entry find_law(phys_addr_t addr); +extern void disable_law(u8 idx); +extern void init_laws(void); +extern void print_laws(void); + +/* define in board code */ +extern struct law_entry law_table[]; +extern int num_law_entries; +#endif diff --git a/arch/ppc/include/asm/fsl_lbc.h b/arch/ppc/include/asm/fsl_lbc.h new file mode 100644 index 0000000..5723de6 --- /dev/null +++ b/arch/ppc/include/asm/fsl_lbc.h @@ -0,0 +1,496 @@ +/* + * Copyright (C) 2004-2008 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#ifndef __ASM_PPC_FSL_LBC_H +#define __ASM_PPC_FSL_LBC_H + +#include <config.h> + +/* BR - Base Registers + */ +#define BR0 0x5000 /* Register offset to immr */ +#define BR1 0x5008 +#define BR2 0x5010 +#define BR3 0x5018 +#define BR4 0x5020 +#define BR5 0x5028 +#define BR6 0x5030 +#define BR7 0x5038 + +#define BR_BA 0xFFFF8000 +#define BR_BA_SHIFT 15 +#define BR_XBA 0x00006000 +#define BR_XBA_SHIFT 13 +#define BR_PS 0x00001800 +#define BR_PS_SHIFT 11 +#define BR_PS_8 0x00000800 /* Port Size 8 bit */ +#define BR_PS_16 0x00001000 /* Port Size 16 bit */ +#define BR_PS_32 0x00001800 /* Port Size 32 bit */ +#define BR_DECC 0x00000600 +#define BR_DECC_SHIFT 9 +#define BR_DECC_OFF 0x00000000 +#define BR_DECC_CHK 0x00000200 +#define BR_DECC_CHK_GEN 0x00000400 +#define BR_WP 0x00000100 +#define BR_WP_SHIFT 8 +#define BR_MSEL 0x000000E0 +#define BR_MSEL_SHIFT 5 +#define BR_MS_GPCM 0x00000000 /* GPCM */ +#define BR_MS_FCM 0x00000020 /* FCM */ +#ifdef CONFIG_MPC83xx +#define BR_MS_SDRAM 0x00000060 /* SDRAM */ +#elif defined(CONFIG_MPC85xx) +#define BR_MS_SDRAM 0x00000000 /* SDRAM */ +#endif +#define BR_MS_UPMA 0x00000080 /* UPMA */ +#define BR_MS_UPMB 0x000000A0 /* UPMB */ +#define BR_MS_UPMC 0x000000C0 /* UPMC */ +#if !defined(CONFIG_MPC834x) +#define BR_ATOM 0x0000000C +#define BR_ATOM_SHIFT 2 +#endif +#define BR_V 0x00000001 +#define BR_V_SHIFT 0 + +#define UPMA 0 +#define UPMB 1 +#define UPMC 2 + +#if defined(CONFIG_MPC834x) +#define BR_RES ~(BR_BA | BR_PS | BR_DECC | BR_WP | BR_MSEL | BR_V) +#else +#define BR_RES ~(BR_BA | BR_PS | BR_DECC | BR_WP | BR_MSEL | BR_ATOM | BR_V) +#endif + +/* Convert an address into the right format for the BR registers */ +#if defined(CONFIG_PHYS_64BIT) && !defined(CONFIG_FSL_ELBC) +#define BR_PHYS_ADDR(x) ((unsigned long)((x & 0x0ffff8000ULL) | \ + ((x & 0x300000000ULL) >> 19))) +#else +#define BR_PHYS_ADDR(x) (x & 0xffff8000) +#endif + +/* OR - Option Registers + */ +#define OR0 0x5004 /* Register offset to immr */ +#define OR1 0x500C +#define OR2 0x5014 +#define OR3 0x501C +#define OR4 0x5024 +#define OR5 0x502C +#define OR6 0x5034 +#define OR7 0x503C + +#define OR_GPCM_AM 0xFFFF8000 +#define OR_GPCM_AM_SHIFT 15 +#define OR_GPCM_XAM 0x00006000 +#define OR_GPCM_XAM_SHIFT 13 +#define OR_GPCM_BCTLD 0x00001000 +#define OR_GPCM_BCTLD_SHIFT 12 +#define OR_GPCM_CSNT 0x00000800 +#define OR_GPCM_CSNT_SHIFT 11 +#define OR_GPCM_ACS 0x00000600 +#define OR_GPCM_ACS_SHIFT 9 +#define OR_GPCM_ACS_DIV2 0x00000600 +#define OR_GPCM_ACS_DIV4 0x00000400 +#define OR_GPCM_XACS 0x00000100 +#define OR_GPCM_XACS_SHIFT 8 +#define OR_GPCM_SCY 0x000000F0 +#define OR_GPCM_SCY_SHIFT 4 +#define OR_GPCM_SCY_1 0x00000010 +#define OR_GPCM_SCY_2 0x00000020 +#define OR_GPCM_SCY_3 0x00000030 +#define OR_GPCM_SCY_4 0x00000040 +#define OR_GPCM_SCY_5 0x00000050 +#define OR_GPCM_SCY_6 0x00000060 +#define OR_GPCM_SCY_7 0x00000070 +#define OR_GPCM_SCY_8 0x00000080 +#define OR_GPCM_SCY_9 0x00000090 +#define OR_GPCM_SCY_10 0x000000a0 +#define OR_GPCM_SCY_11 0x000000b0 +#define OR_GPCM_SCY_12 0x000000c0 +#define OR_GPCM_SCY_13 0x000000d0 +#define OR_GPCM_SCY_14 0x000000e0 +#define OR_GPCM_SCY_15 0x000000f0 +#define OR_GPCM_SETA 0x00000008 +#define OR_GPCM_SETA_SHIFT 3 +#define OR_GPCM_TRLX 0x00000004 +#define OR_GPCM_TRLX_SHIFT 2 +#define OR_GPCM_EHTR 0x00000002 +#define OR_GPCM_EHTR_SHIFT 1 +#define OR_GPCM_EAD 0x00000001 +#define OR_GPCM_EAD_SHIFT 0 + +/* helpers to convert values into an OR address mask (GPCM mode) */ +#define P2SZ_TO_AM(s) ((~((s) - 1)) & 0xffff8000) /* must be pow of 2 */ +#define MEG_TO_AM(m) P2SZ_TO_AM((m) << 20) + +#define OR_FCM_AM 0xFFFF8000 +#define OR_FCM_AM_SHIFT 15 +#define OR_FCM_XAM 0x00006000 +#define OR_FCM_XAM_SHIFT 13 +#define OR_FCM_BCTLD 0x00001000 +#define OR_FCM_BCTLD_SHIFT 12 +#define OR_FCM_PGS 0x00000400 +#define OR_FCM_PGS_SHIFT 10 +#define OR_FCM_CSCT 0x00000200 +#define OR_FCM_CSCT_SHIFT 9 +#define OR_FCM_CST 0x00000100 +#define OR_FCM_CST_SHIFT 8 +#define OR_FCM_CHT 0x00000080 +#define OR_FCM_CHT_SHIFT 7 +#define OR_FCM_SCY 0x00000070 +#define OR_FCM_SCY_SHIFT 4 +#define OR_FCM_SCY_1 0x00000010 +#define OR_FCM_SCY_2 0x00000020 +#define OR_FCM_SCY_3 0x00000030 +#define OR_FCM_SCY_4 0x00000040 +#define OR_FCM_SCY_5 0x00000050 +#define OR_FCM_SCY_6 0x00000060 +#define OR_FCM_SCY_7 0x00000070 +#define OR_FCM_RST 0x00000008 +#define OR_FCM_RST_SHIFT 3 +#define OR_FCM_TRLX 0x00000004 +#define OR_FCM_TRLX_SHIFT 2 +#define OR_FCM_EHTR 0x00000002 +#define OR_FCM_EHTR_SHIFT 1 + +#define OR_UPM_AM 0xFFFF8000 +#define OR_UPM_AM_SHIFT 15 +#define OR_UPM_XAM 0x00006000 +#define OR_UPM_XAM_SHIFT 13 +#define OR_UPM_BCTLD 0x00001000 +#define OR_UPM_BCTLD_SHIFT 12 +#define OR_UPM_BI 0x00000100 +#define OR_UPM_BI_SHIFT 8 +#define OR_UPM_TRLX 0x00000004 +#define OR_UPM_TRLX_SHIFT 2 +#define OR_UPM_EHTR 0x00000002 +#define OR_UPM_EHTR_SHIFT 1 +#define OR_UPM_EAD 0x00000001 +#define OR_UPM_EAD_SHIFT 0 + +#define OR_SDRAM_AM 0xFFFF8000 +#define OR_SDRAM_AM_SHIFT 15 +#define OR_SDRAM_XAM 0x00006000 +#define OR_SDRAM_XAM_SHIFT 13 +#define OR_SDRAM_COLS 0x00001C00 +#define OR_SDRAM_COLS_SHIFT 10 +#define OR_SDRAM_ROWS 0x000001C0 +#define OR_SDRAM_ROWS_SHIFT 6 +#define OR_SDRAM_PMSEL 0x00000020 +#define OR_SDRAM_PMSEL_SHIFT 5 +#define OR_SDRAM_EAD 0x00000001 +#define OR_SDRAM_EAD_SHIFT 0 + +#define OR_AM_32KB 0xFFFF8000 +#define OR_AM_64KB 0xFFFF0000 +#define OR_AM_128KB 0xFFFE0000 +#define OR_AM_256KB 0xFFFC0000 +#define OR_AM_512KB 0xFFF80000 +#define OR_AM_1MB 0xFFF00000 +#define OR_AM_2MB 0xFFE00000 +#define OR_AM_4MB 0xFFC00000 +#define OR_AM_8MB 0xFF800000 +#define OR_AM_16MB 0xFF000000 +#define OR_AM_32MB 0xFE000000 +#define OR_AM_64MB 0xFC000000 +#define OR_AM_128MB 0xF8000000 +#define OR_AM_256MB 0xF0000000 +#define OR_AM_512MB 0xE0000000 +#define OR_AM_1GB 0xC0000000 +#define OR_AM_2GB 0x80000000 +#define OR_AM_4GB 0x00000000 + +/* MxMR - UPM Machine A/B/C Mode Registers + */ +#define MxMR_MAD_MSK 0x0000003f /* Machine Address Mask */ +#define MxMR_TLFx_MSK 0x000003c0 /* Refresh Loop Field Mask */ +#define MxMR_WLFx_MSK 0x00003c00 /* Write Loop Field Mask */ +#define MxMR_WLFx_1X 0x00000400 /* executed 1 time */ +#define MxMR_WLFx_2X 0x00000800 /* executed 2 times */ +#define MxMR_WLFx_3X 0x00000c00 /* executed 3 times */ +#define MxMR_WLFx_4X 0x00001000 /* executed 4 times */ +#define MxMR_WLFx_5X 0x00001400 /* executed 5 times */ +#define MxMR_WLFx_6X 0x00001800 /* executed 6 times */ +#define MxMR_WLFx_7X 0x00001c00 /* executed 7 times */ +#define MxMR_WLFx_8X 0x00002000 /* executed 8 times */ +#define MxMR_WLFx_9X 0x00002400 /* executed 9 times */ +#define MxMR_WLFx_10X 0x00002800 /* executed 10 times */ +#define MxMR_WLFx_11X 0x00002c00 /* executed 11 times */ +#define MxMR_WLFx_12X 0x00003000 /* executed 12 times */ +#define MxMR_WLFx_13X 0x00003400 /* executed 13 times */ +#define MxMR_WLFx_14X 0x00003800 /* executed 14 times */ +#define MxMR_WLFx_15X 0x00003c00 /* executed 15 times */ +#define MxMR_WLFx_16X 0x00000000 /* executed 16 times */ +#define MxMR_RLFx_MSK 0x0003c000 /* Read Loop Field Mask */ +#define MxMR_GPL_x4DIS 0x00040000 /* GPL_A4 Ouput Line Disable */ +#define MxMR_G0CLx_MSK 0x00380000 /* General Line 0 Control Mask */ +#define MxMR_DSx_1_CYCL 0x00000000 /* 1 cycle Disable Period */ +#define MxMR_DSx_2_CYCL 0x00400000 /* 2 cycle Disable Period */ +#define MxMR_DSx_3_CYCL 0x00800000 /* 3 cycle Disable Period */ +#define MxMR_DSx_4_CYCL 0x00c00000 /* 4 cycle Disable Period */ +#define MxMR_DSx_MSK 0x00c00000 /* Disable Timer Period Mask */ +#define MxMR_AMx_MSK 0x07000000 /* Addess Multiplex Size Mask */ +#define MxMR_OP_NORM 0x00000000 /* Normal Operation */ +#define MxMR_OP_WARR 0x10000000 /* Write to Array */ +#define MxMR_OP_RARR 0x20000000 /* Read from Array */ +#define MxMR_OP_RUNP 0x30000000 /* Run Pattern */ +#define MxMR_OP_MSK 0x30000000 /* Command Opcode Mask */ +#define MxMR_RFEN 0x40000000 /* Refresh Enable */ +#define MxMR_BSEL 0x80000000 /* Bus Select */ + +#define LBLAWAR_EN 0x80000000 +#define LBLAWAR_4KB 0x0000000B +#define LBLAWAR_8KB 0x0000000C +#define LBLAWAR_16KB 0x0000000D +#define LBLAWAR_32KB 0x0000000E +#define LBLAWAR_64KB 0x0000000F +#define LBLAWAR_128KB 0x00000010 +#define LBLAWAR_256KB 0x00000011 +#define LBLAWAR_512KB 0x00000012 +#define LBLAWAR_1MB 0x00000013 +#define LBLAWAR_2MB 0x00000014 +#define LBLAWAR_4MB 0x00000015 +#define LBLAWAR_8MB 0x00000016 +#define LBLAWAR_16MB 0x00000017 +#define LBLAWAR_32MB 0x00000018 +#define LBLAWAR_64MB 0x00000019 +#define LBLAWAR_128MB 0x0000001A +#define LBLAWAR_256MB 0x0000001B +#define LBLAWAR_512MB 0x0000001C +#define LBLAWAR_1GB 0x0000001D +#define LBLAWAR_2GB 0x0000001E + +/* LBCR - Local Bus Configuration Register + */ +#define LBCR_LDIS 0x80000000 +#define LBCR_LDIS_SHIFT 31 +#define LBCR_BCTLC 0x00C00000 +#define LBCR_BCTLC_SHIFT 22 +#define LBCR_LPBSE 0x00020000 +#define LBCR_LPBSE_SHIFT 17 +#define LBCR_EPAR 0x00010000 +#define LBCR_EPAR_SHIFT 16 +#define LBCR_BMT 0x0000FF00 +#define LBCR_BMT_SHIFT 8 + +/* LCRR - Clock Ratio Register + */ +#define LCRR_DBYP 0x80000000 +#define LCRR_DBYP_SHIFT 31 +#define LCRR_BUFCMDC 0x30000000 +#define LCRR_BUFCMDC_SHIFT 28 +#define LCRR_BUFCMDC_1 0x10000000 +#define LCRR_BUFCMDC_2 0x20000000 +#define LCRR_BUFCMDC_3 0x30000000 +#define LCRR_BUFCMDC_4 0x00000000 +#define LCRR_ECL 0x03000000 +#define LCRR_ECL_SHIFT 24 +#define LCRR_ECL_4 0x00000000 +#define LCRR_ECL_5 0x01000000 +#define LCRR_ECL_6 0x02000000 +#define LCRR_ECL_7 0x03000000 +#define LCRR_EADC 0x00030000 +#define LCRR_EADC_SHIFT 16 +#define LCRR_EADC_1 0x00010000 +#define LCRR_EADC_2 0x00020000 +#define LCRR_EADC_3 0x00030000 +#define LCRR_EADC_4 0x00000000 +/* CLKDIV is five bits only on 8536, 8572, and 8610, so far, but the fifth bit + * should always be zero on older parts that have a four bit CLKDIV. + */ +#define LCRR_CLKDIV 0x0000001F +#define LCRR_CLKDIV_SHIFT 0 +#if defined(CONFIG_MPC83xx) || defined (CONFIG_MPC8540) || \ + defined(CONFIG_MPC8541) || defined (CONFIG_MPC8555) || \ + defined(CONFIG_MPC8560) +#define LCRR_CLKDIV_2 0x00000002 +#define LCRR_CLKDIV_4 0x00000004 +#define LCRR_CLKDIV_8 0x00000008 +#elif defined(CONFIG_FSL_CORENET) +#define LCRR_CLKDIV_8 0x00000002 +#define LCRR_CLKDIV_16 0x00000004 +#define LCRR_CLKDIV_32 0x00000008 +#else +#define LCRR_CLKDIV_4 0x00000002 +#define LCRR_CLKDIV_8 0x00000004 +#define LCRR_CLKDIV_16 0x00000008 +#endif + +/* LTEDR - Transfer Error Check Disable Register + */ +#define LTEDR_BMD 0x80000000 /* Bus monitor disable */ +#define LTEDR_PARD 0x20000000 /* Parity error checking disabled */ +#define LTEDR_WPD 0x04000000 /* Write protect error checking diable */ +#define LTEDR_WARA 0x00800000 /* Write-after-read-atomic error checking diable */ +#define LTEDR_RAWA 0x00400000 /* Read-after-write-atomic error checking disable */ +#define LTEDR_CSD 0x00080000 /* Chip select error checking disable */ + +/* FMR - Flash Mode Register + */ +#define FMR_CWTO 0x0000F000 +#define FMR_CWTO_SHIFT 12 +#define FMR_BOOT 0x00000800 +#define FMR_ECCM 0x00000100 +#define FMR_AL 0x00000030 +#define FMR_AL_SHIFT 4 +#define FMR_OP 0x00000003 +#define FMR_OP_SHIFT 0 + +/* FIR - Flash Instruction Register + */ +#define FIR_OP0 0xF0000000 +#define FIR_OP0_SHIFT 28 +#define FIR_OP1 0x0F000000 +#define FIR_OP1_SHIFT 24 +#define FIR_OP2 0x00F00000 +#define FIR_OP2_SHIFT 20 +#define FIR_OP3 0x000F0000 +#define FIR_OP3_SHIFT 16 +#define FIR_OP4 0x0000F000 +#define FIR_OP4_SHIFT 12 +#define FIR_OP5 0x00000F00 +#define FIR_OP5_SHIFT 8 +#define FIR_OP6 0x000000F0 +#define FIR_OP6_SHIFT 4 +#define FIR_OP7 0x0000000F +#define FIR_OP7_SHIFT 0 +#define FIR_OP_NOP 0x0 /* No operation and end of sequence */ +#define FIR_OP_CA 0x1 /* Issue current column address */ +#define FIR_OP_PA 0x2 /* Issue current block+page address */ +#define FIR_OP_UA 0x3 /* Issue user defined address */ +#define FIR_OP_CM0 0x4 /* Issue command from FCR[CMD0] */ +#define FIR_OP_CM1 0x5 /* Issue command from FCR[CMD1] */ +#define FIR_OP_CM2 0x6 /* Issue command from FCR[CMD2] */ +#define FIR_OP_CM3 0x7 /* Issue command from FCR[CMD3] */ +#define FIR_OP_WB 0x8 /* Write FBCR bytes from FCM buffer */ +#define FIR_OP_WS 0x9 /* Write 1 or 2 bytes from MDR[AS] */ +#define FIR_OP_RB 0xA /* Read FBCR bytes to FCM buffer */ +#define FIR_OP_RS 0xB /* Read 1 or 2 bytes to MDR[AS] */ +#define FIR_OP_CW0 0xC /* Wait then issue FCR[CMD0] */ +#define FIR_OP_CW1 0xD /* Wait then issue FCR[CMD1] */ +#define FIR_OP_RBW 0xE /* Wait then read FBCR bytes */ +#define FIR_OP_RSW 0xF /* Wait then read 1 or 2 bytes */ + +/* FCR - Flash Command Register + */ +#define FCR_CMD0 0xFF000000 +#define FCR_CMD0_SHIFT 24 +#define FCR_CMD1 0x00FF0000 +#define FCR_CMD1_SHIFT 16 +#define FCR_CMD2 0x0000FF00 +#define FCR_CMD2_SHIFT 8 +#define FCR_CMD3 0x000000FF +#define FCR_CMD3_SHIFT 0 +/* FBAR - Flash Block Address Register + */ +#define FBAR_BLK 0x00FFFFFF + +/* FPAR - Flash Page Address Register + */ +#define FPAR_SP_PI 0x00007C00 +#define FPAR_SP_PI_SHIFT 10 +#define FPAR_SP_MS 0x00000200 +#define FPAR_SP_CI 0x000001FF +#define FPAR_SP_CI_SHIFT 0 +#define FPAR_LP_PI 0x0003F000 +#define FPAR_LP_PI_SHIFT 12 +#define FPAR_LP_MS 0x00000800 +#define FPAR_LP_CI 0x000007FF +#define FPAR_LP_CI_SHIFT 0 + +/* LSDMR - SDRAM Machine Mode Register + */ +#define LSDMR_RFEN (1 << (31 - 1)) +#define LSDMR_BSMA1516 (3 << (31 - 10)) +#define LSDMR_BSMA1617 (4 << (31 - 10)) +#define LSDMR_RFCR5 (3 << (31 - 16)) +#define LSDMR_RFCR16 (7 << (31 - 16)) +#define LSDMR_PRETOACT3 (3 << (31 - 19)) +#define LSDMR_PRETOACT7 (7 << (31 - 19)) +#define LSDMR_ACTTORW3 (3 << (31 - 22)) +#define LSDMR_ACTTORW7 (7 << (31 - 22)) +#define LSDMR_ACTTORW6 (6 << (31 - 22)) +#define LSDMR_BL8 (1 << (31 - 23)) +#define LSDMR_WRC2 (2 << (31 - 27)) +#define LSDMR_WRC4 (0 << (31 - 27)) +#define LSDMR_BUFCMD (1 << (31 - 29)) +#define LSDMR_CL3 (3 << (31 - 31)) + +#define LSDMR_OP_NORMAL (0 << (31 - 4)) +#define LSDMR_OP_ARFRSH (1 << (31 - 4)) +#define LSDMR_OP_SRFRSH (2 << (31 - 4)) +#define LSDMR_OP_MRW (3 << (31 - 4)) +#define LSDMR_OP_PRECH (4 << (31 - 4)) +#define LSDMR_OP_PCHALL (5 << (31 - 4)) +#define LSDMR_OP_ACTBNK (6 << (31 - 4)) +#define LSDMR_OP_RWINV (7 << (31 - 4)) + +/* LTESR - Transfer Error Status Register + */ +#define LTESR_BM 0x80000000 +#define LTESR_FCT 0x40000000 +#define LTESR_PAR 0x20000000 +#define LTESR_WP 0x04000000 +#define LTESR_ATMW 0x00800000 +#define LTESR_ATMR 0x00400000 +#define LTESR_CS 0x00080000 +#define LTESR_CC 0x00000001 + +#ifndef __ASSEMBLY__ +/* + * Local Bus Controller Registers. + */ +typedef struct lbus_bank { + u32 br; /* Base Register */ + u32 or; /* Option Register */ +} lbus_bank_t; + +typedef struct fsl_lbus { + lbus_bank_t bank[8]; + u8 res0[0x28]; + u32 mar; /* UPM Address Register */ + u8 res1[0x4]; + u32 mamr; /* UPMA Mode Register */ + u32 mbmr; /* UPMB Mode Register */ + u32 mcmr; /* UPMC Mode Register */ + u8 res2[0x8]; + u32 mrtpr; /* Memory Refresh Timer Prescaler Register */ + u32 mdr; /* UPM Data Register */ + u8 res3[0x4]; + u32 lsor; /* Special Operation Initiation Register */ + u32 lsdmr; /* SDRAM Mode Register */ + u8 res4[0x8]; + u32 lurt; /* UPM Refresh Timer */ + u32 lsrt; /* SDRAM Refresh Timer */ + u8 res5[0x8]; + u32 ltesr; /* Transfer Error Status Register */ + u32 ltedr; /* Transfer Error Disable Register */ + u32 lteir; /* Transfer Error Interrupt Register */ + u32 lteatr; /* Transfer Error Attributes Register */ + u32 ltear; /* Transfer Error Address Register */ + u8 res6[0xC]; + u32 lbcr; /* Configuration Register */ + u32 lcrr; /* Clock Ratio Register */ + u8 res7[0x8]; + u32 fmr; /* Flash Mode Register */ + u32 fir; /* Flash Instruction Register */ + u32 fcr; /* Flash Command Register */ + u32 fbar; /* Flash Block Addr Register */ + u32 fpar; /* Flash Page Addr Register */ + u32 fbcr; /* Flash Byte Count Register */ + u8 res8[0xF08]; +} fsl_lbus_t; +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_PPC_FSL_LBC_H */ diff --git a/arch/ppc/include/asm/fsl_pci.h b/arch/ppc/include/asm/fsl_pci.h new file mode 100644 index 0000000..db61e7e --- /dev/null +++ b/arch/ppc/include/asm/fsl_pci.h @@ -0,0 +1,202 @@ +/* + * Copyright 2007,2009 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +#ifndef __FSL_PCI_H_ +#define __FSL_PCI_H_ + +#include <asm/fsl_law.h> + +int is_fsl_pci_cfg(enum law_trgt_if trgt, u32 io_sel); + +int fsl_setup_hose(struct pci_controller *hose, unsigned long addr); +int fsl_is_pci_agent(struct pci_controller *hose); +void fsl_pci_init(struct pci_controller *hose, u32 cfg_addr, u32 cfg_data); +void fsl_pci_config_unlock(struct pci_controller *hose); +void ft_fsl_pci_setup(void *blob, const char *pci_alias, + struct pci_controller *hose); + +/* + * Common PCI/PCIE Register structure for mpc85xx and mpc86xx + */ + +/* + * PCI Translation Registers + */ +typedef struct pci_outbound_window { + u32 potar; /* 0x00 - Address */ + u32 potear; /* 0x04 - Address Extended */ + u32 powbar; /* 0x08 - Window Base Address */ + u32 res1; + u32 powar; /* 0x10 - Window Attributes */ +#define POWAR_EN 0x80000000 +#define POWAR_IO_READ 0x00080000 +#define POWAR_MEM_READ 0x00040000 +#define POWAR_IO_WRITE 0x00008000 +#define POWAR_MEM_WRITE 0x00004000 + u32 res2[3]; +} pot_t; + +typedef struct pci_inbound_window { + u32 pitar; /* 0x00 - Address */ + u32 res1; + u32 piwbar; /* 0x08 - Window Base Address */ + u32 piwbear; /* 0x0c - Window Base Address Extended */ + u32 piwar; /* 0x10 - Window Attributes */ +#define PIWAR_EN 0x80000000 +#define PIWAR_PF 0x20000000 +#define PIWAR_LOCAL 0x00f00000 +#define PIWAR_READ_SNOOP 0x00050000 +#define PIWAR_WRITE_SNOOP 0x00005000 + u32 res2[3]; +} pit_t; + +/* PCI/PCI Express Registers */ +typedef struct ccsr_pci { + u32 cfg_addr; /* 0x000 - PCI Configuration Address Register */ + u32 cfg_data; /* 0x004 - PCI Configuration Data Register */ + u32 int_ack; /* 0x008 - PCI Interrupt Acknowledge Register */ + u32 out_comp_to; /* 0x00C - PCI Outbound Completion Timeout Register */ + u32 out_conf_to; /* 0x010 - PCI Configuration Timeout Register */ + u32 config; /* 0x014 - PCIE CONFIG Register */ + char res2[8]; + u32 pme_msg_det; /* 0x020 - PCIE PME & message detect register */ + u32 pme_msg_dis; /* 0x024 - PCIE PME & message disable register */ + u32 pme_msg_int_en; /* 0x028 - PCIE PME & message interrupt enable register */ + u32 pm_command; /* 0x02c - PCIE PM Command register */ + char res4[3016]; /* (- #xbf8 #x30)3016 */ + u32 block_rev1; /* 0xbf8 - PCIE Block Revision register 1 */ + u32 block_rev2; /* 0xbfc - PCIE Block Revision register 2 */ + + pot_t pot[5]; /* 0xc00 - 0xc9f Outbound ATMU's 0, 1, 2, 3, and 4 */ + u32 res5[64]; + pit_t pit[3]; /* 0xda0 - 0xdff Inbound ATMU's 3, 2, and 1 */ +#define PIT3 0 +#define PIT2 1 +#define PIT1 2 + +#if 0 + u32 potar0; /* 0xc00 - PCI Outbound Transaction Address Register 0 */ + u32 potear0; /* 0xc04 - PCI Outbound Translation Extended Address Register 0 */ + char res5[8]; + u32 powar0; /* 0xc10 - PCI Outbound Window Attributes Register 0 */ + char res6[12]; + u32 potar1; /* 0xc20 - PCI Outbound Transaction Address Register 1 */ + u32 potear1; /* 0xc24 - PCI Outbound Translation Extended Address Register 1 */ + u32 powbar1; /* 0xc28 - PCI Outbound Window Base Address Register 1 */ + char res7[4]; + u32 powar1; /* 0xc30 - PCI Outbound Window Attributes Register 1 */ + char res8[12]; + u32 potar2; /* 0xc40 - PCI Outbound Transaction Address Register 2 */ + u32 potear2; /* 0xc44 - PCI Outbound Translation Extended Address Register 2 */ + u32 powbar2; /* 0xc48 - PCI Outbound Window Base Address Register 2 */ + char res9[4]; + u32 powar2; /* 0xc50 - PCI Outbound Window Attributes Register 2 */ + char res10[12]; + u32 potar3; /* 0xc60 - PCI Outbound Transaction Address Register 3 */ + u32 potear3; /* 0xc64 - PCI Outbound Translation Extended Address Register 3 */ + u32 powbar3; /* 0xc68 - PCI Outbound Window Base Address Register 3 */ + char res11[4]; + u32 powar3; /* 0xc70 - PCI Outbound Window Attributes Register 3 */ + char res12[12]; + u32 potar4; /* 0xc80 - PCI Outbound Transaction Address Register 4 */ + u32 potear4; /* 0xc84 - PCI Outbound Translation Extended Address Register 4 */ + u32 powbar4; /* 0xc88 - PCI Outbound Window Base Address Register 4 */ + char res13[4]; + u32 powar4; /* 0xc90 - PCI Outbound Window Attributes Register 4 */ + char res14[268]; + u32 pitar3; /* 0xda0 - PCI Inbound Translation Address Register 3 */ + char res15[4]; + u32 piwbar3; /* 0xda8 - PCI Inbound Window Base Address Register 3 */ + u32 piwbear3; /* 0xdac - PCI Inbound Window Base Extended Address Register 3 */ + u32 piwar3; /* 0xdb0 - PCI Inbound Window Attributes Register 3 */ + char res16[12]; + u32 pitar2; /* 0xdc0 - PCI Inbound Translation Address Register 2 */ + char res17[4]; + u32 piwbar2; /* 0xdc8 - PCI Inbound Window Base Address Register 2 */ + u32 piwbear2; /* 0xdcc - PCI Inbound Window Base Extended Address Register 2 */ + u32 piwar2; /* 0xdd0 - PCI Inbound Window Attributes Register 2 */ + char res18[12]; + u32 pitar1; /* 0xde0 - PCI Inbound Translation Address Register 1 */ + char res19[4]; + u32 piwbar1; /* 0xde8 - PCI Inbound Window Base Address Register 1 */ + char res20[4]; + u32 piwar1; /* 0xdf0 - PCI Inbound Window Attributes Register 1 */ + char res21[12]; +#endif + u32 pedr; /* 0xe00 - PCI Error Detect Register */ + u32 pecdr; /* 0xe04 - PCI Error Capture Disable Register */ + u32 peer; /* 0xe08 - PCI Error Interrupt Enable Register */ + u32 peattrcr; /* 0xe0c - PCI Error Attributes Capture Register */ + u32 peaddrcr; /* 0xe10 - PCI Error Address Capture Register */ +/* u32 perr_disr * 0xe10 - PCIE Erorr Disable Register */ + u32 peextaddrcr; /* 0xe14 - PCI Error Extended Address Capture Register */ + u32 pedlcr; /* 0xe18 - PCI Error Data Low Capture Register */ + u32 pedhcr; /* 0xe1c - PCI Error Error Data High Capture Register */ + u32 gas_timr; /* 0xe20 - PCI Gasket Timer Register */ +/* u32 perr_cap_stat; * 0xe20 - PCIE Error Capture Status Register */ + char res22[4]; + u32 perr_cap0; /* 0xe28 - PCIE Error Capture Register 0 */ + u32 perr_cap1; /* 0xe2c - PCIE Error Capture Register 1 */ + u32 perr_cap2; /* 0xe30 - PCIE Error Capture Register 2 */ + u32 perr_cap3; /* 0xe34 - PCIE Error Capture Register 3 */ + char res23[200]; + u32 pdb_stat; /* 0xf00 - PCIE Debug Status */ + char res24[252]; +} ccsr_fsl_pci_t; + +struct fsl_pci_info { + unsigned long regs; + pci_addr_t mem_bus; + phys_size_t mem_phys; + pci_size_t mem_size; + pci_addr_t io_bus; + phys_size_t io_phys; + pci_size_t io_size; + int pci_num; +}; + +int fsl_pci_init_port(struct fsl_pci_info *pci_info, + struct pci_controller *hose, int busno); + +#define SET_STD_PCI_INFO(x, num) \ +{ \ + x.regs = CONFIG_SYS_PCI##num##_ADDR; \ + x.mem_bus = CONFIG_SYS_PCI##num##_MEM_BUS; \ + x.mem_phys = CONFIG_SYS_PCI##num##_MEM_PHYS; \ + x.mem_size = CONFIG_SYS_PCI##num##_MEM_SIZE; \ + x.io_bus = CONFIG_SYS_PCI##num##_IO_BUS; \ + x.io_phys = CONFIG_SYS_PCI##num##_IO_PHYS; \ + x.io_size = CONFIG_SYS_PCI##num##_IO_SIZE; \ + x.pci_num = num; \ +} + +#define SET_STD_PCIE_INFO(x, num) \ +{ \ + x.regs = CONFIG_SYS_PCIE##num##_ADDR; \ + x.mem_bus = CONFIG_SYS_PCIE##num##_MEM_BUS; \ + x.mem_phys = CONFIG_SYS_PCIE##num##_MEM_PHYS; \ + x.mem_size = CONFIG_SYS_PCIE##num##_MEM_SIZE; \ + x.io_bus = CONFIG_SYS_PCIE##num##_IO_BUS; \ + x.io_phys = CONFIG_SYS_PCIE##num##_IO_PHYS; \ + x.io_size = CONFIG_SYS_PCIE##num##_IO_SIZE; \ + x.pci_num = num; \ +} + +#endif diff --git a/arch/ppc/include/asm/fsl_serdes.h b/arch/ppc/include/asm/fsl_serdes.h new file mode 100644 index 0000000..6da4b6f --- /dev/null +++ b/arch/ppc/include/asm/fsl_serdes.h @@ -0,0 +1,21 @@ +#ifndef __FSL_SERDES_H +#define __FSL_SERDES_H + +#include <config.h> + +#define FSL_SERDES_CLK_100 (0 << 28) +#define FSL_SERDES_CLK_125 (1 << 28) +#define FSL_SERDES_CLK_150 (3 << 28) +#define FSL_SERDES_PROTO_SATA 0 +#define FSL_SERDES_PROTO_PEX 1 +#define FSL_SERDES_PROTO_PEX_X2 2 +#define FSL_SERDES_PROTO_SGMII 3 +#define FSL_SERDES_VDD_1V 1 + +#ifdef CONFIG_FSL_SERDES +extern void fsl_setup_serdes(u32 offset, char proto, u32 rfcks, char vdd); +#else +static void fsl_setup_serdes(u32 offset, char proto, u32 rfcks, char vdd) {} +#endif /* CONFIG_FSL_SERDES */ + +#endif /* __FSL_SERDES_H */ diff --git a/arch/ppc/include/asm/global_data.h b/arch/ppc/include/asm/global_data.h new file mode 100644 index 0000000..d3dd44e --- /dev/null +++ b/arch/ppc/include/asm/global_data.h @@ -0,0 +1,198 @@ +/* + * (C) Copyright 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef __ASM_GBL_DATA_H +#define __ASM_GBL_DATA_H + +#include "config.h" +#include "asm/types.h" + +/* + * The following data structure is placed in some memory wich is + * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or + * some locked parts of the data cache) to allow for a minimum set of + * global variables during system initialization (until we have set + * up the memory controller so that we can use RAM). + * + * Keep it *SMALL* and remember to set CONFIG_SYS_GBL_DATA_SIZE > sizeof(gd_t) + */ + +typedef struct global_data { + bd_t *bd; + unsigned long flags; + unsigned long baudrate; + unsigned long cpu_clk; /* CPU clock in Hz! */ + unsigned long bus_clk; +#if defined(CONFIG_8xx) + unsigned long brg_clk; +#endif +#if defined(CONFIG_CPM2) + /* There are many clocks on the MPC8260 - see page 9-5 */ + unsigned long vco_out; + unsigned long cpm_clk; + unsigned long scc_clk; + unsigned long brg_clk; +#ifdef CONFIG_PCI + unsigned long pci_clk; +#endif +#endif + unsigned long mem_clk; +#if defined(CONFIG_MPC83xx) + /* There are other clocks in the MPC83XX */ + u32 csb_clk; +#if defined(CONFIG_MPC834x) || defined(CONFIG_MPC831x) || defined(CONFIG_MPC837x) + u32 tsec1_clk; + u32 tsec2_clk; + u32 usbdr_clk; +#endif +#if defined (CONFIG_MPC834x) + u32 usbmph_clk; +#endif /* CONFIG_MPC834x */ +#if defined(CONFIG_MPC8315) + u32 tdm_clk; +#endif + u32 core_clk; + u32 enc_clk; + u32 lbiu_clk; + u32 lclk_clk; + u32 pci_clk; +#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC831x) + u32 pciexp1_clk; + u32 pciexp2_clk; +#endif +#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315) + u32 sata_clk; +#endif +#if defined(CONFIG_MPC8360) + u32 mem_sec_clk; +#endif /* CONFIG_MPC8360 */ +#endif +#if defined(CONFIG_FSL_ESDHC) + u32 sdhc_clk; +#endif +#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) + u32 lbc_clk; + void *cpu; +#endif /* CONFIG_MPC85xx || CONFIG_MPC86xx */ +#if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) + u32 i2c1_clk; + u32 i2c2_clk; +#endif +#if defined(CONFIG_QE) + u32 qe_clk; + u32 brg_clk; + uint mp_alloc_base; + uint mp_alloc_top; +#endif /* CONFIG_QE */ +#if defined(CONFIG_FSL_LAW) + u32 used_laws; +#endif +#if defined(CONFIG_E500) + u32 used_tlb_cams[(CONFIG_SYS_NUM_TLBCAMS+31)/32]; +#endif +#if defined(CONFIG_MPC5xxx) + unsigned long ipb_clk; + unsigned long pci_clk; +#endif +#if defined(CONFIG_MPC512X) + u32 ips_clk; + u32 csb_clk; + u32 pci_clk; +#endif /* CONFIG_MPC512X */ +#if defined(CONFIG_MPC8220) + unsigned long bExtUart; + unsigned long inp_clk; + unsigned long pci_clk; + unsigned long vco_clk; + unsigned long pev_clk; + unsigned long flb_clk; +#endif + phys_size_t ram_size; /* RAM size */ + unsigned long reset_status; /* reset status register at boot */ +#if defined(CONFIG_MPC83xx) + unsigned long arbiter_event_attributes; + unsigned long arbiter_event_address; +#endif + unsigned long env_addr; /* Address of Environment struct */ + unsigned long env_valid; /* Checksum of Environment valid? */ + unsigned long have_console; /* serial_init() was called */ +#if defined(CONFIG_SYS_ALLOC_DPRAM) || defined(CONFIG_CPM2) + unsigned int dp_alloc_base; + unsigned int dp_alloc_top; +#endif +#if defined(CONFIG_4xx) + u32 uart_clk; +#endif /* CONFIG_4xx */ +#if defined(CONFIG_SYS_GT_6426x) + unsigned int mirror_hack[16]; +#endif +#if defined(CONFIG_A3000) || \ + defined(CONFIG_HIDDEN_DRAGON) || \ + defined(CONFIG_MUSENKI) || \ + defined(CONFIG_SANDPOINT) + void * console_addr; +#endif + unsigned long relocaddr; /* Start address of U-Boot in RAM */ +#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO) + unsigned long fb_base; /* Base address of framebuffer memory */ +#endif +#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) + unsigned long post_log_word; /* Record POST activities */ + unsigned long post_init_f_time; /* When post_init_f started */ +#endif +#ifdef CONFIG_BOARD_TYPES + unsigned long board_type; +#endif +#ifdef CONFIG_MODEM_SUPPORT + unsigned long do_mdm_init; + unsigned long be_quiet; +#endif +#if defined(CONFIG_LWMON) || defined(CONFIG_LWMON5) + unsigned long kbd_status; +#endif +#if defined(CONFIG_WD_MAX_RATE) + unsigned long long wdt_last; /* trace watch-dog triggering rate */ +#endif + void **jt; /* jump table */ +} gd_t; + +/* + * Global Data Flags + */ +#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ +#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ +#define GD_FLG_SILENT 0x00004 /* Silent mode */ +#define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ +#define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ +#define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ +#define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ + +#if 1 +#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r2") +#else /* We could use plain global data, but the resulting code is bigger */ +#define XTRN_DECLARE_GLOBAL_DATA_PTR extern +#define DECLARE_GLOBAL_DATA_PTR XTRN_DECLARE_GLOBAL_DATA_PTR \ + gd_t *gd +#endif + +#endif /* __ASM_GBL_DATA_H */ diff --git a/arch/ppc/include/asm/gpio.h b/arch/ppc/include/asm/gpio.h new file mode 100644 index 0000000..23e29b1 --- /dev/null +++ b/arch/ppc/include/asm/gpio.h @@ -0,0 +1,119 @@ +/* + * (C) Copyright 2007-2008 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef __ASM_PPC_GPIO_H +#define __ASM_PPC_GPIO_H + +#include <asm/types.h> + +/* 4xx PPC's have 2 GPIO controllers */ +#if defined(CONFIG_405EZ) || \ + defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) +#define GPIO_GROUP_MAX 2 +#else +#define GPIO_GROUP_MAX 1 +#endif + +/* GPIO controller */ +struct ppc4xx_gpio { + u32 or; /* Output Control */ + u32 tcr; /* Tri-State Control */ + u32 osl; /* Output Select 16..31 */ + u32 osh; /* Output Select 0..15 */ + u32 tsl; /* Tri-State Select 16..31 */ + u32 tsh; /* Tri-State Select 0..15 */ + u32 odr; /* Open Drain */ + u32 ir; /* Input */ + u32 rr1; /* Receive Register 1 */ + u32 rr2; /* Receive Register 2 */ + u32 rr3; /* Receive Register 3 */ + u32 reserved; + u32 is1l; /* Input Select 1 16..31 */ + u32 is1h; /* Input Select 1 0..15 */ + u32 is2l; /* Input Select 2 16..31 */ + u32 is2h; /* Input Select 2 0..15 */ + u32 is3l; /* Input Select 3 16..31 */ + u32 is3h; /* Input Select 3 0..15 */ +}; + +/* Offsets */ +#define GPIOx_OR 0x00 /* GPIO Output Register */ +#define GPIOx_TCR 0x04 /* GPIO Three-State Control Register */ +#define GPIOx_OSL 0x08 /* GPIO Output Select Register (Bits 0-31) */ +#define GPIOx_OSH 0x0C /* GPIO Ouput Select Register (Bits 32-63) */ +#define GPIOx_TSL 0x10 /* GPIO Three-State Select Register (Bits 0-31) */ +#define GPIOx_TSH 0x14 /* GPIO Three-State Select Register (Bits 32-63) */ +#define GPIOx_ODR 0x18 /* GPIO Open drain Register */ +#define GPIOx_IR 0x1C /* GPIO Input Register */ +#define GPIOx_RR1 0x20 /* GPIO Receive Register 1 */ +#define GPIOx_RR2 0x24 /* GPIO Receive Register 2 */ +#define GPIOx_RR3 0x28 /* GPIO Receive Register 3 */ +#define GPIOx_IS1L 0x30 /* GPIO Input Select Register 1 (Bits 0-31) */ +#define GPIOx_IS1H 0x34 /* GPIO Input Select Register 1 (Bits 32-63) */ +#define GPIOx_IS2L 0x38 /* GPIO Input Select Register 2 (Bits 0-31) */ +#define GPIOx_IS2H 0x3C /* GPIO Input Select Register 2 (Bits 32-63) */ +#define GPIOx_IS3L 0x40 /* GPIO Input Select Register 3 (Bits 0-31) */ +#define GPIOx_IS3H 0x44 /* GPIO Input Select Register 3 (Bits 32-63) */ + +#define GPIO_OR(x) (x+GPIOx_OR) /* GPIO Output Register */ +#define GPIO_TCR(x) (x+GPIOx_TCR) /* GPIO Three-State Control Register */ +#define GPIO_OS(x) (x+GPIOx_OSL) /* GPIO Output Select Register High or Low */ +#define GPIO_TS(x) (x+GPIOx_TSL) /* GPIO Three-state Control Reg High or Low */ +#define GPIO_IS1(x) (x+GPIOx_IS1L) /* GPIO Input register1 High or Low */ +#define GPIO_IS2(x) (x+GPIOx_IS2L) /* GPIO Input register2 High or Low */ +#define GPIO_IS3(x) (x+GPIOx_IS3L) /* GPIO Input register3 High or Low */ + +#define GPIO0 0 +#define GPIO1 1 + +#define GPIO_MAX 32 +#define GPIO_ALT1_SEL 0x40000000 +#define GPIO_ALT2_SEL 0x80000000 +#define GPIO_ALT3_SEL 0xc0000000 +#define GPIO_IN_SEL 0x40000000 +#define GPIO_MASK 0xc0000000 + +#define GPIO_VAL(gpio) (0x80000000 >> (gpio)) + +#ifndef __ASSEMBLY__ +typedef enum gpio_select { GPIO_SEL, GPIO_ALT1, GPIO_ALT2, GPIO_ALT3 } gpio_select_t; +typedef enum gpio_driver { GPIO_DIS, GPIO_IN, GPIO_OUT, GPIO_BI } gpio_driver_t; +typedef enum gpio_out { GPIO_OUT_0, GPIO_OUT_1, GPIO_OUT_NO_CHG } gpio_out_t; + +typedef struct { + unsigned long add; /* gpio core base address */ + gpio_driver_t in_out; /* Driver Setting */ + gpio_select_t alt_nb; /* Selected Alternate */ + gpio_out_t out_val;/* Default Output Value */ +} gpio_param_s; +#endif + +void gpio_config(int pin, int in_out, int gpio_alt, int out_val); +void gpio_write_bit(int pin, int val); +int gpio_read_out_bit(int pin); +int gpio_read_in_bit(int pin); +void gpio_set_chip_configuration(void); + +#endif /* __ASM_PPC_GPIO_H */ diff --git a/arch/ppc/include/asm/immap_512x.h b/arch/ppc/include/asm/immap_512x.h new file mode 100644 index 0000000..95350fd --- /dev/null +++ b/arch/ppc/include/asm/immap_512x.h @@ -0,0 +1,1246 @@ +/* + * (C) Copyright 2007-2009 DENX Software Engineering + * + * MPC512x Internal Memory Map + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Based on the MPC83xx header. + */ + +#ifndef __IMMAP_512x__ +#define __IMMAP_512x__ + +#include <asm/types.h> +#if defined(CONFIG_E300) +#include <asm/e300.h> +#endif + +/* + * System reset offset (PowerPC standard) + */ +#define EXC_OFF_SYS_RESET 0x0100 +#define _START_OFFSET EXC_OFF_SYS_RESET + +#define SPR_5121E 0x80180000 + +/* + * IMMRBAR - Internal Memory Register Base Address + */ +#define CONFIG_DEFAULT_IMMR 0xFF400000 /* Default IMMR base address */ +#define IMMRBAR 0x0000 /* Register offset to immr */ +#define IMMRBAR_BASE_ADDR 0xFFF00000 /* Base address mask */ +#define IMMRBAR_RES ~(IMMRBAR_BASE_ADDR) + + +#ifndef __ASSEMBLY__ +typedef struct law512x { + u32 bar; /* Base Addr Register */ + u32 ar; /* Attributes Register */ +} law512x_t; + +/* + * System configuration registers + */ +typedef struct sysconf512x { + u32 immrbar; /* Internal memory map base address register */ + u8 res0[0x1c]; + u32 lpbaw; /* LP Boot Access Window */ + u32 lpcs0aw; /* LP CS0 Access Window */ + u32 lpcs1aw; /* LP CS1 Access Window */ + u32 lpcs2aw; /* LP CS2 Access Window */ + u32 lpcs3aw; /* LP CS3 Access Window */ + u32 lpcs4aw; /* LP CS4 Access Window */ + u32 lpcs5aw; /* LP CS5 Access Window */ + u32 lpcs6aw; /* LP CS6 Access Window */ + u32 lpcs7aw; /* LP CS7 Access Window */ + u8 res1[0x1c]; + law512x_t pcilaw[3]; /* PCI Local Access Window 0-2 Registers */ + u8 res2[0x28]; + law512x_t ddrlaw; /* DDR Local Access Window */ + u8 res3[0x18]; + u32 mbxbar; /* MBX Base Address */ + u32 srambar; /* SRAM Base Address */ + u32 nfcbar; /* NFC Base Address */ + u8 res4[0x34]; + u32 spridr; /* System Part and Revision ID Register */ + u32 spcr; /* System Priority Configuration Register */ + u8 res5[0xf8]; +} sysconf512x_t; + +#define LAWBAR_BAR 0xFFFFF000 /* Base address mask */ + +/* + * Watch Dog Timer (WDT) Registers + */ +typedef struct wdt512x { + u8 res0[4]; + u32 swcrr; /* System watchdog control register */ + u32 swcnr; /* System watchdog count register */ + u8 res1[2]; + u16 swsrr; /* System watchdog service register */ + u8 res2[0xF0]; +} wdt512x_t; + +/* + * RTC Module Registers + */ +typedef struct rtclk512x { + u8 fixme[0x100]; +} rtclk512x_t; + +/* + * General Purpose Timer + */ +typedef struct gpt512x { + u8 fixme[0x100]; +} gpt512x_t; + +/* + * Integrated Programmable Interrupt Controller + */ +typedef struct ipic512x { + u8 fixme[0x100]; +} ipic512x_t; + +/* + * System Arbiter Registers + */ +typedef struct arbiter512x { + u32 acr; /* Arbiter Configuration Register */ + u32 atr; /* Arbiter Timers Register */ + u32 ater; /* Arbiter Transfer Error Register */ + u32 aer; /* Arbiter Event Register */ + u32 aidr; /* Arbiter Interrupt Definition Register */ + u32 amr; /* Arbiter Mask Register */ + u32 aeatr; /* Arbiter Event Attributes Register */ + u32 aeadr; /* Arbiter Event Address Register */ + u32 aerr; /* Arbiter Event Response Register */ + u8 res1[0xDC]; +} arbiter512x_t; + +/* + * Reset Module + */ +typedef struct reset512x { + u32 rcwl; /* Reset Configuration Word Low Register */ + u32 rcwh; /* Reset Configuration Word High Register */ + u8 res0[8]; + u32 rsr; /* Reset Status Register */ + u32 rmr; /* Reset Mode Register */ + u32 rpr; /* Reset protection Register */ + u32 rcr; /* Reset Control Register */ + u32 rcer; /* Reset Control Enable Register */ + u8 res1[0xDC]; +} reset512x_t; + +/* RSR - Reset Status Register */ +#define RSR_SWSR 0x00002000 /* software soft reset */ +#define RSR_SWHR 0x00001000 /* software hard reset */ +#define RSR_JHRS 0x00000200 /* jtag hreset */ +#define RSR_JSRS 0x00000100 /* jtag sreset status */ +#define RSR_CSHR 0x00000010 /* checkstop reset status */ +#define RSR_SWRS 0x00000008 /* software watchdog reset status */ +#define RSR_BMRS 0x00000004 /* bus monitop reset status */ +#define RSR_SRS 0x00000002 /* soft reset status */ +#define RSR_HRS 0x00000001 /* hard reset status */ +#define RSR_RES ~(RSR_SWSR | RSR_SWHR |\ + RSR_JHRS | RSR_JSRS | RSR_CSHR | RSR_SWRS |\ + RSR_BMRS | RSR_SRS | RSR_HRS) + +/* RMR - Reset Mode Register */ +#define RMR_CSRE 0x00000001 /* checkstop reset enable */ +#define RMR_CSRE_SHIFT 0 +#define RMR_RES (~(RMR_CSRE)) + +/* RCR - Reset Control Register */ +#define RCR_SWHR 0x00000002 /* software hard reset */ +#define RCR_SWSR 0x00000001 /* software soft reset */ +#define RCR_RES (~(RCR_SWHR | RCR_SWSR)) + +/* RCER - Reset Control Enable Register */ +#define RCER_CRE 0x00000001 /* software hard reset */ +#define RCER_RES (~(RCER_CRE)) + +/* + * Clock Module + */ +typedef struct clk512x { + u32 spmr; /* System PLL Mode Register */ + u32 sccr[2]; /* System Clock Control Registers */ + u32 scfr[2]; /* System Clock Frequency Registers */ + u8 res0[4]; + u32 bcr; /* Bread Crumb Register */ + u32 pscccr[12]; /* PSC0-11 Clock Control Registers */ + u32 spccr; /* SPDIF Clock Control Register */ + u32 cccr; /* CFM Clock Control Register */ + u32 dccr; /* DIU Clock Control Register */ + u32 msccr[4]; /* MSCAN1-4 Clock Control Registers */ + u8 res1[0x98]; +} clk512x_t; + +/* SPMR - System PLL Mode Register */ +#define SPMR_SPMF 0x0F000000 +#define SPMR_SPMF_SHIFT 24 +#define SPMR_CPMF 0x000F0000 +#define SPMR_CPMF_SHIFT 16 + +/* System Clock Control Register 1 commands */ +#define CLOCK_SCCR1_CFG_EN 0x80000000 +#define CLOCK_SCCR1_LPC_EN 0x40000000 +#define CLOCK_SCCR1_NFC_EN 0x20000000 +#define CLOCK_SCCR1_PATA_EN 0x10000000 +#define CLOCK_SCCR1_PSC_EN(cn) (0x08000000 >> (cn)) +#define CLOCK_SCCR1_PSCFIFO_EN 0x00008000 +#define CLOCK_SCCR1_SATA_EN 0x00004000 +#define CLOCK_SCCR1_FEC_EN 0x00002000 +#define CLOCK_SCCR1_TPR_EN 0x00001000 +#define CLOCK_SCCR1_PCI_EN 0x00000800 +#define CLOCK_SCCR1_DDR_EN 0x00000400 + +/* System Clock Control Register 2 commands */ +#define CLOCK_SCCR2_DIU_EN 0x80000000 +#define CLOCK_SCCR2_AXE_EN 0x40000000 +#define CLOCK_SCCR2_MEM_EN 0x20000000 +#define CLOCK_SCCR2_USB1_EN 0x10000000 +#define CLOCK_SCCR2_USB2_EN 0x08000000 +#define CLOCK_SCCR2_I2C_EN 0x04000000 +#define CLOCK_SCCR2_BDLC_EN 0x02000000 +#define CLOCK_SCCR2_SDHC_EN 0x01000000 +#define CLOCK_SCCR2_SPDIF_EN 0x00800000 +#define CLOCK_SCCR2_MBX_BUS_EN 0x00400000 +#define CLOCK_SCCR2_MBX_EN 0x00200000 +#define CLOCK_SCCR2_MBX_3D_EN 0x00100000 +#define CLOCK_SCCR2_IIM_EN 0x00080000 + +/* SCFR1 System Clock Frequency Register 1 */ +#define SCFR1_IPS_DIV 0x3 +#define SCFR1_IPS_DIV_MASK 0x03800000 +#define SCFR1_IPS_DIV_SHIFT 23 + +#define SCFR1_PCI_DIV 0x6 +#define SCFR1_PCI_DIV_MASK 0x00700000 +#define SCFR1_PCI_DIV_SHIFT 20 + +#define SCFR1_LPC_DIV_MASK 0x00003800 +#define SCFR1_LPC_DIV_SHIFT 11 + +/* SCFR2 System Clock Frequency Register 2 */ +#define SCFR2_SYS_DIV 0xFC000000 +#define SCFR2_SYS_DIV_SHIFT 26 + +/* SPCR - System Priority Configuration Register */ +#define SPCR_TBEN 0x00400000 /* E300 core time base unit enable */ + +/* + * Power Management Control Module + */ +typedef struct pmc512x { + u8 fixme[0x100]; +} pmc512x_t; + +/* + * General purpose I/O module + */ +typedef struct gpio512x { + u32 gpdir; + u32 gpodr; + u32 gpdat; + u32 gpier; + u32 gpimr; + u32 gpicr1; + u32 gpicr2; + u8 res0[0xE4]; +} gpio512x_t; + +/* + * DDR Memory Controller Memory Map + */ +typedef struct ddr512x { + u32 ddr_sys_config; /* System Configuration Register */ + u32 ddr_time_config0; /* Timing Configuration Register */ + u32 ddr_time_config1; /* Timing Configuration Register */ + u32 ddr_time_config2; /* Timing Configuration Register */ + u32 ddr_command; /* Command Register */ + u32 ddr_compact_command; /* Compact Command Register */ + u32 self_refresh_cmd_0; /* Enter/Exit Self Refresh Registers */ + u32 self_refresh_cmd_1; /* Enter/Exit Self Refresh Registers */ + u32 self_refresh_cmd_2; /* Enter/Exit Self Refresh Registers */ + u32 self_refresh_cmd_3; /* Enter/Exit Self Refresh Registers */ + u32 self_refresh_cmd_4; /* Enter/Exit Self Refresh Registers */ + u32 self_refresh_cmd_5; /* Enter/Exit Self Refresh Registers */ + u32 self_refresh_cmd_6; /* Enter/Exit Self Refresh Registers */ + u32 self_refresh_cmd_7; /* Enter/Exit Self Refresh Registers */ + u32 DQS_config_offset_count; /* DQS Config Offset Count */ + u32 DQS_config_offset_time; /* DQS Config Offset Time */ + u32 DQS_delay_status; /* DQS Delay Status */ + u32 res0[0xF]; + u32 prioman_config1; /* Priority Manager Configuration */ + u32 prioman_config2; /* Priority Manager Configuration */ + u32 hiprio_config; /* High Priority Configuration */ + u32 lut_table0_main_upper; /* LUT0 Main Upper */ + u32 lut_table1_main_upper; /* LUT1 Main Upper */ + u32 lut_table2_main_upper; /* LUT2 Main Upper */ + u32 lut_table3_main_upper; /* LUT3 Main Upper */ + u32 lut_table4_main_upper; /* LUT4 Main Upper */ + u32 lut_table0_main_lower; /* LUT0 Main Lower */ + u32 lut_table1_main_lower; /* LUT1 Main Lower */ + u32 lut_table2_main_lower; /* LUT2 Main Lower */ + u32 lut_table3_main_lower; /* LUT3 Main Lower */ + u32 lut_table4_main_lower; /* LUT4 Main Lower */ + u32 lut_table0_alternate_upper; /* LUT0 Alternate Upper */ + u32 lut_table1_alternate_upper; /* LUT1 Alternate Upper */ + u32 lut_table2_alternate_upper; /* LUT2 Alternate Upper */ + u32 lut_table3_alternate_upper; /* LUT3 Alternate Upper */ + u32 lut_table4_alternate_upper; /* LUT4 Alternate Upper */ + u32 lut_table0_alternate_lower; /* LUT0 Alternate Lower */ + u32 lut_table1_alternate_lower; /* LUT1 Alternate Lower */ + u32 lut_table2_alternate_lower; /* LUT2 Alternate Lower */ + u32 lut_table3_alternate_lower; /* LUT3 Alternate Lower */ + u32 lut_table4_alternate_lower; /* LUT4 Alternate Lower */ + u32 performance_monitor_config; + u32 event_time_counter; + u32 event_time_preset; + u32 performance_monitor1_address_low; + u32 performance_monitor2_address_low; + u32 performance_monitor1_address_hi; + u32 performance_monitor2_address_hi; + u32 res1[2]; + u32 performance_monitor1_read_counter; + u32 performance_monitor2_read_counter; + u32 performance_monitor1_write_counter; + u32 performance_monitor2_write_counter; + u32 granted_ack_counter0; + u32 granted_ack_counter1; + u32 granted_ack_counter2; + u32 granted_ack_counter3; + u32 granted_ack_counter4; + u32 cumulative_wait_counter0; + u32 cumulative_wait_counter1; + u32 cumulative_wait_counter2; + u32 cumulative_wait_counter3; + u32 cumulative_wait_counter4; + u32 summed_priority_counter0; + u32 summed_priority_counter1; + u32 summed_priority_counter2; + u32 summed_priority_counter3; + u32 summed_priority_counter4; + u32 res2[0x3AD]; +} ddr512x_t; + +/* MDDRC SYS CFG and Timing CFG0 Registers */ +#define MDDRC_SYS_CFG_EN 0xF0000000 +#define MDDRC_SYS_CFG_CMD_MASK 0x10000000 +#define MDDRC_REFRESH_ZERO_MASK 0x0000FFFF + +/* + * DDR Memory Controller Configuration settings + */ +typedef struct ddr512x_config { + u32 ddr_sys_config; /* System Configuration Register */ + u32 ddr_time_config0; /* Timing Configuration Register */ + u32 ddr_time_config1; /* Timing Configuration Register */ + u32 ddr_time_config2; /* Timing Configuration Register */ +} ddr512x_config_t; + +/* + * DMA/Messaging Unit + */ +typedef struct dma512x { + u8 fixme[0x1800]; +} dma512x_t; + +/* + * PCI Software Configuration Registers + */ +typedef struct pciconf512x { + u32 config_address; + u32 config_data; + u32 int_ack; + u8 res[116]; +} pciconf512x_t; + +/* + * PCI Outbound Translation Register + */ +typedef struct pci_outbound_window { + u32 potar; + u8 res0[4]; + u32 pobar; + u8 res1[4]; + u32 pocmr; + u8 res2[4]; +} pot512x_t; + +/* POTAR - PCI Outbound Translation Address Register */ +#define POTAR_TA_MASK 0x000fffff + +/* POBAR - PCI Outbound Base Address Register */ +#define POBAR_BA_MASK 0x000fffff + +/* POCMR - PCI Outbound Comparision Mask Register */ +#define POCMR_EN 0x80000000 +#define POCMR_IO 0x40000000 /* 0-memory space 1-I/O space */ +#define POCMR_PRE 0x20000000 /* prefetch enable */ +#define POCMR_SBS 0x00100000 /* special byte swap enable */ +#define POCMR_CM_MASK 0x000fffff +#define POCMR_CM_4G 0x00000000 +#define POCMR_CM_2G 0x00080000 +#define POCMR_CM_1G 0x000C0000 +#define POCMR_CM_512M 0x000E0000 +#define POCMR_CM_256M 0x000F0000 +#define POCMR_CM_128M 0x000F8000 +#define POCMR_CM_64M 0x000FC000 +#define POCMR_CM_32M 0x000FE000 +#define POCMR_CM_16M 0x000FF000 +#define POCMR_CM_8M 0x000FF800 +#define POCMR_CM_4M 0x000FFC00 +#define POCMR_CM_2M 0x000FFE00 +#define POCMR_CM_1M 0x000FFF00 +#define POCMR_CM_512K 0x000FFF80 +#define POCMR_CM_256K 0x000FFFC0 +#define POCMR_CM_128K 0x000FFFE0 +#define POCMR_CM_64K 0x000FFFF0 +#define POCMR_CM_32K 0x000FFFF8 +#define POCMR_CM_16K 0x000FFFFC +#define POCMR_CM_8K 0x000FFFFE +#define POCMR_CM_4K 0x000FFFFF + +/* + * Sequencer + */ +typedef struct ios512x { + pot512x_t pot[6]; + u8 res0[0x60]; + u32 pmcr; + u8 res1[4]; + u32 dtcr; + u8 res2[4]; +} ios512x_t; + +/* + * PCI Controller + */ +typedef struct pcictrl512x { + u32 esr; + u32 ecdr; + u32 eer; + u32 eatcr; + u32 eacr; + u32 eeacr; + u32 edlcr; + u32 edhcr; + u32 gcr; + u32 ecr; + u32 gsr; + u8 res0[12]; + u32 pitar2; + u8 res1[4]; + u32 pibar2; + u32 piebar2; + u32 piwar2; + u8 res2[4]; + u32 pitar1; + u8 res3[4]; + u32 pibar1; + u32 piebar1; + u32 piwar1; + u8 res4[4]; + u32 pitar0; + u8 res5[4]; + u32 pibar0; + u8 res6[4]; + u32 piwar0; + u8 res7[132]; +} pcictrl512x_t; + + +/* PITAR - PCI Inbound Translation Address Register + */ +#define PITAR_TA_MASK 0x000fffff + +/* PIBAR - PCI Inbound Base/Extended Address Register + */ +#define PIBAR_MASK 0xffffffff +#define PIEBAR_EBA_MASK 0x000fffff + +/* PIWAR - PCI Inbound Windows Attributes Register + */ +#define PIWAR_EN 0x80000000 +#define PIWAR_SBS 0x40000000 +#define PIWAR_PF 0x20000000 +#define PIWAR_RTT_MASK 0x000f0000 +#define PIWAR_RTT_NO_SNOOP 0x00040000 +#define PIWAR_RTT_SNOOP 0x00050000 +#define PIWAR_WTT_MASK 0x0000f000 +#define PIWAR_WTT_NO_SNOOP 0x00004000 +#define PIWAR_WTT_SNOOP 0x00005000 + +/* + * MSCAN + */ +typedef struct mscan512x { + u8 fixme[0x100]; +} mscan512x_t; + +/* + * BDLC + */ +typedef struct bdlc512x { + u8 fixme[0x100]; +} bdlc512x_t; + +/* + * SDHC + */ +typedef struct sdhc512x { + u8 fixme[0x100]; +} sdhc512x_t; + +/* + * SPDIF + */ +typedef struct spdif512x { + u8 fixme[0x100]; +} spdif512x_t; + +/* + * I2C + */ +typedef struct i2c512x_dev { + volatile u32 madr; /* I2Cn + 0x00 */ + volatile u32 mfdr; /* I2Cn + 0x04 */ + volatile u32 mcr; /* I2Cn + 0x08 */ + volatile u32 msr; /* I2Cn + 0x0C */ + volatile u32 mdr; /* I2Cn + 0x10 */ + u8 res0[0x0C]; +} i2c512x_dev_t; + +/* Number of I2C buses */ +#define I2C_BUS_CNT 3 + +typedef struct i2c512x { + i2c512x_dev_t dev[I2C_BUS_CNT]; + volatile u32 icr; + volatile u32 mifr; + u8 res0[0x98]; +} i2c512x_t; + +/* I2Cn control register bits */ +#define I2C_EN 0x80 +#define I2C_IEN 0x40 +#define I2C_STA 0x20 +#define I2C_TX 0x10 +#define I2C_TXAK 0x08 +#define I2C_RSTA 0x04 +#define I2C_INIT_MASK (I2C_EN | I2C_STA | I2C_TX | I2C_RSTA) + +/* I2Cn status register bits */ +#define I2C_CF 0x80 +#define I2C_AAS 0x40 +#define I2C_BB 0x20 +#define I2C_AL 0x10 +#define I2C_SRW 0x04 +#define I2C_IF 0x02 +#define I2C_RXAK 0x01 + +/* + * AXE + */ +typedef struct axe512x { + u8 fixme[0x100]; +} axe512x_t; + +/* + * DIU + */ +typedef struct diu512x { + u8 fixme[0x100]; +} diu512x_t; + +/* + * CFM + */ +typedef struct cfm512x { + u8 fixme[0x100]; +} cfm512x_t; + +/* + * FEC + */ +typedef struct fec512x { + u32 fec_id; /* FEC_ID register */ + u32 ievent; /* Interrupt event register */ + u32 imask; /* Interrupt mask register */ + u32 reserved_01; + u32 r_des_active; /* Receive ring updated flag */ + u32 x_des_active; /* Transmit ring updated flag */ + u32 reserved_02[3]; + u32 ecntrl; /* Ethernet control register */ + u32 reserved_03[6]; + u32 mii_data; /* MII data register */ + u32 mii_speed; /* MII speed register */ + u32 reserved_04[7]; + u32 mib_control; /* MIB control/status register */ + u32 reserved_05[7]; + u32 r_cntrl; /* Receive control register */ + u32 r_hash; /* Receive hash */ + u32 reserved_06[14]; + u32 x_cntrl; /* Transmit control register */ + u32 reserved_07[7]; + u32 paddr1; /* Physical address low */ + u32 paddr2; /* Physical address high + type field */ + u32 op_pause; /* Opcode + pause duration */ + u32 reserved_08[10]; + u32 iaddr1; /* Upper 32 bits of individual hash table */ + u32 iaddr2; /* Lower 32 bits of individual hash table */ + u32 gaddr1; /* Upper 32 bits of group hash table */ + u32 gaddr2; /* Lower 32 bits of group hash table */ + u32 reserved_09[7]; + u32 x_wmrk; /* Transmit FIFO watermark */ + u32 reserved_10; + u32 r_bound; /* End of RAM */ + u32 r_fstart; /* Receive FIFO start address */ + u32 reserved_11[11]; + u32 r_des_start; /* Beginning of receive descriptor ring */ + u32 x_des_start; /* Pointer to beginning of transmit descriptor ring */ + u32 r_buff_size; /* Receive buffer size */ + u32 reserved_12[26]; + u32 dma_control; /* DMA control for IP bus, AMBA IF + DMA revision */ + u32 reserved_13[2]; + + u32 mib[128]; /* MIB Block Counters */ + + u32 fifo[256]; /* used by FEC, can only be accessed by DMA */ +} fec512x_t; + +/* + * ULPI + */ +typedef struct ulpi512x { + u8 fixme[0x600]; +} ulpi512x_t; + +/* + * UTMI + */ +typedef struct utmi512x { + u8 fixme[0x3000]; +} utmi512x_t; + +/* + * PCI DMA + */ +typedef struct pcidma512x { + u8 fixme[0x300]; +} pcidma512x_t; + +/* + * IO Control + */ +typedef struct ioctrl512x { + u32 io_control_mem; /* MEM pad ctrl reg */ + u32 io_control_gp; /* GP pad ctrl reg */ + u32 io_control_lpc_clk; /* LPC_CLK pad ctrl reg */ + u32 io_control_lpc_oe; /* LPC_OE pad ctrl reg */ + u32 io_control_lpc_rw; /* LPC_R/W pad ctrl reg */ + u32 io_control_lpc_ack; /* LPC_ACK pad ctrl reg */ + u32 io_control_lpc_cs0; /* LPC_CS0 pad ctrl reg */ + u32 io_control_nfc_ce0; /* NFC_CE0 pad ctrl reg */ + u32 io_control_lpc_cs1; /* LPC_CS1 pad ctrl reg */ + u32 io_control_lpc_cs2; /* LPC_CS2 pad ctrl reg */ + u32 io_control_lpc_ax03; /* LPC_AX03 pad ctrl reg */ + u32 io_control_emb_ax02; /* EMB_AX02 pad ctrl reg */ + u32 io_control_emb_ax01; /* EMB_AX01 pad ctrl reg */ + u32 io_control_emb_ax00; /* EMB_AX00 pad ctrl reg */ + u32 io_control_emb_ad31; /* EMB_AD31 pad ctrl reg */ + u32 io_control_emb_ad30; /* EMB_AD30 pad ctrl reg */ + u32 io_control_emb_ad29; /* EMB_AD29 pad ctrl reg */ + u32 io_control_emb_ad28; /* EMB_AD28 pad ctrl reg */ + u32 io_control_emb_ad27; /* EMB_AD27 pad ctrl reg */ + u32 io_control_emb_ad26; /* EMB_AD26 pad ctrl reg */ + u32 io_control_emb_ad25; /* EMB_AD25 pad ctrl reg */ + u32 io_control_emb_ad24; /* EMB_AD24 pad ctrl reg */ + u32 io_control_emb_ad23; /* EMB_AD23 pad ctrl reg */ + u32 io_control_emb_ad22; /* EMB_AD22 pad ctrl reg */ + u32 io_control_emb_ad21; /* EMB_AD21 pad ctrl reg */ + u32 io_control_emb_ad20; /* EMB_AD20 pad ctrl reg */ + u32 io_control_emb_ad19; /* EMB_AD19 pad ctrl reg */ + u32 io_control_emb_ad18; /* EMB_AD18 pad ctrl reg */ + u32 io_control_emb_ad17; /* EMB_AD17 pad ctrl reg */ + u32 io_control_emb_ad16; /* EMB_AD16 pad ctrl reg */ + u32 io_control_emb_ad15; /* EMB_AD15 pad ctrl reg */ + u32 io_control_emb_ad14; /* EMB_AD14 pad ctrl reg */ + u32 io_control_emb_ad13; /* EMB_AD13 pad ctrl reg */ + u32 io_control_emb_ad12; /* EMB_AD12 pad ctrl reg */ + u32 io_control_emb_ad11; /* EMB_AD11 pad ctrl reg */ + u32 io_control_emb_ad10; /* EMB_AD10 pad ctrl reg */ + u32 io_control_emb_ad09; /* EMB_AD09 pad ctrl reg */ + u32 io_control_emb_ad08; /* EMB_AD08 pad ctrl reg */ + u32 io_control_emb_ad07; /* EMB_AD07 pad ctrl reg */ + u32 io_control_emb_ad06; /* EMB_AD06 pad ctrl reg */ + u32 io_control_emb_ad05; /* EMB_AD05 pad ctrl reg */ + u32 io_control_emb_ad04; /* EMB_AD04 pad ctrl reg */ + u32 io_control_emb_ad03; /* EMB_AD03 pad ctrl reg */ + u32 io_control_emb_ad02; /* EMB_AD02 pad ctrl reg */ + u32 io_control_emb_ad01; /* EMB_AD01 pad ctrl reg */ + u32 io_control_emb_ad00; /* EMB_AD00 pad ctrl reg */ + u32 io_control_pata_ce1; /* PATA_CE1 pad ctrl reg */ + u32 io_control_pata_ce2; /* PATA_CE2 pad ctrl reg */ + u32 io_control_pata_isolate; /* PATA_ISOLATE pad ctrl reg */ + u32 io_control_pata_ior; /* PATA_IOR pad ctrl reg */ + u32 io_control_pata_iow; /* PATA_IOW pad ctrl reg */ + u32 io_control_pata_iochrdy; /* PATA_IOCHRDY pad ctrl reg */ + u32 io_control_pata_intrq; /* PATA_INTRQ pad ctrl reg */ + u32 io_control_pata_drq; /* PATA_DRQ pad ctrl reg */ + u32 io_control_pata_dack; /* PATA_DACK pad ctrl reg */ + u32 io_control_nfc_wp; /* NFC_WP pad ctrl reg */ + u32 io_control_nfc_rb; /* NFC_RB pad ctrl reg */ + u32 io_control_nfc_ale; /* NFC_ALE pad ctrl reg */ + u32 io_control_nfc_cle; /* NFC_CLE pad ctrl reg */ + u32 io_control_nfc_we; /* NFC_WE pad ctrl reg */ + u32 io_control_nfc_re; /* NFC_RE pad ctrl reg */ + u32 io_control_pci_ad31; /* PCI_AD31 pad ctrl reg */ + u32 io_control_pci_ad30; /* PCI_AD30 pad ctrl reg */ + u32 io_control_pci_ad29; /* PCI_AD29 pad ctrl reg */ + u32 io_control_pci_ad28; /* PCI_AD28 pad ctrl reg */ + u32 io_control_pci_ad27; /* PCI_AD27 pad ctrl reg */ + u32 io_control_pci_ad26; /* PCI_AD26 pad ctrl reg */ + u32 io_control_pci_ad25; /* PCI_AD25 pad ctrl reg */ + u32 io_control_pci_ad24; /* PCI_AD24 pad ctrl reg */ + u32 io_control_pci_ad23; /* PCI_AD23 pad ctrl reg */ + u32 io_control_pci_ad22; /* PCI_AD22 pad ctrl reg */ + u32 io_control_pci_ad21; /* PCI_AD21 pad ctrl reg */ + u32 io_control_pci_ad20; /* PCI_AD20 pad ctrl reg */ + u32 io_control_pci_ad19; /* PCI_AD19 pad ctrl reg */ + u32 io_control_pci_ad18; /* PCI_AD18 pad ctrl reg */ + u32 io_control_pci_ad17; /* PCI_AD17 pad ctrl reg */ + u32 io_control_pci_ad16; /* PCI_AD16 pad ctrl reg */ + u32 io_control_pci_ad15; /* PCI_AD15 pad ctrl reg */ + u32 io_control_pci_ad14; /* PCI_AD14 pad ctrl reg */ + u32 io_control_pci_ad13; /* PCI_AD13 pad ctrl reg */ + u32 io_control_pci_ad12; /* PCI_AD12 pad ctrl reg */ + u32 io_control_pci_ad11; /* PCI_AD11 pad ctrl reg */ + u32 io_control_pci_ad10; /* PCI_AD10 pad ctrl reg */ + u32 io_control_pci_ad09; /* PCI_AD09 pad ctrl reg */ + u32 io_control_pci_ad08; /* PCI_AD08 pad ctrl reg */ + u32 io_control_pci_ad07; /* PCI_AD07 pad ctrl reg */ + u32 io_control_pci_ad06; /* PCI_AD06 pad ctrl reg */ + u32 io_control_pci_ad05; /* PCI_AD05 pad ctrl reg */ + u32 io_control_pci_ad04; /* PCI_AD04 pad ctrl reg */ + u32 io_control_pci_ad03; /* PCI_AD03 pad ctrl reg */ + u32 io_control_pci_ad02; /* PCI_AD02 pad ctrl reg */ + u32 io_control_pci_ad01; /* PCI_AD01 pad ctrl reg */ + u32 io_control_pci_ad00; /* PCI_AD00 pad ctrl reg */ + u32 io_control_pci_cbe0; /* PCI_CBE0 pad ctrl reg */ + u32 io_control_pci_cbe1; /* PCI_CBE1 pad ctrl reg */ + u32 io_control_pci_cbe2; /* PCI_CBE2 pad ctrl reg */ + u32 io_control_pci_cbe3; /* PCI_CBE3 pad ctrl reg */ + u32 io_control_pci_grant2; /* PCI_GRANT2 pad ctrl reg */ + u32 io_control_pci_req2; /* PCI_REQ2 pad ctrl reg */ + u32 io_control_pci_grant1; /* PCI_GRANT1 pad ctrl reg */ + u32 io_control_pci_req1; /* PCI_REQ1 pad ctrl reg */ + u32 io_control_pci_grant0; /* PCI_GRANT0 pad ctrl reg */ + u32 io_control_pci_req0; /* PCI_REQ0 pad ctrl reg */ + u32 io_control_pci_inta; /* PCI_INTA pad ctrl reg */ + u32 io_control_pci_clk; /* PCI_CLK pad ctrl reg */ + u32 io_control_pci_rst; /* PCI_RST- pad ctrl reg */ + u32 io_control_pci_frame; /* PCI_FRAME pad ctrl reg */ + u32 io_control_pci_idsel; /* PCI_IDSEL pad ctrl reg */ + u32 io_control_pci_devsel; /* PCI_DEVSEL pad ctrl reg */ + u32 io_control_pci_irdy; /* PCI_IRDY pad ctrl reg */ + u32 io_control_pci_trdy; /* PCI_TRDY pad ctrl reg */ + u32 io_control_pci_stop; /* PCI_STOP pad ctrl reg */ + u32 io_control_pci_par; /* PCI_PAR pad ctrl reg */ + u32 io_control_pci_perr; /* PCI_PERR pad ctrl reg */ + u32 io_control_pci_serr; /* PCI_SERR pad ctrl reg */ + u32 io_control_spdif_txclk; /* SPDIF_TXCLK pad ctrl reg */ + u32 io_control_spdif_tx; /* SPDIF_TX pad ctrl reg */ + u32 io_control_spdif_rx; /* SPDIF_RX pad ctrl reg */ + u32 io_control_i2c0_scl; /* I2C0_SCL pad ctrl reg */ + u32 io_control_i2c0_sda; /* I2C0_SDA pad ctrl reg */ + u32 io_control_i2c1_scl; /* I2C1_SCL pad ctrl reg */ + u32 io_control_i2c1_sda; /* I2C1_SDA pad ctrl reg */ + u32 io_control_i2c2_scl; /* I2C2_SCL pad ctrl reg */ + u32 io_control_i2c2_sda; /* I2C2_SDA pad ctrl reg */ + u32 io_control_irq0; /* IRQ0 pad ctrl reg */ + u32 io_control_irq1; /* IRQ1 pad ctrl reg */ + u32 io_control_can1_tx; /* CAN1_TX pad ctrl reg */ + u32 io_control_can2_tx; /* CAN2_TX pad ctrl reg */ + u32 io_control_j1850_tx; /* J1850_TX pad ctrl reg */ + u32 io_control_j1850_rx; /* J1850_RX pad ctrl reg */ + u32 io_control_psc_mclk_in; /* PSC_MCLK_IN pad ctrl reg */ + u32 io_control_psc0_0; /* PSC0_0 pad ctrl reg */ + u32 io_control_psc0_1; /* PSC0_1 pad ctrl reg */ + u32 io_control_psc0_2; /* PSC0_2 pad ctrl reg */ + u32 io_control_psc0_3; /* PSC0_3 pad ctrl reg */ + u32 io_control_psc0_4; /* PSC0_4 pad ctrl reg */ + u32 io_control_psc1_0; /* PSC1_0 pad ctrl reg */ + u32 io_control_psc1_1; /* PSC1_1 pad ctrl reg */ + u32 io_control_psc1_2; /* PSC1_2 pad ctrl reg */ + u32 io_control_psc1_3; /* PSC1_3 pad ctrl reg */ + u32 io_control_psc1_4; /* PSC1_4 pad ctrl reg */ + u32 io_control_psc2_0; /* PSC2_0 pad ctrl reg */ + u32 io_control_psc2_1; /* PSC2_1 pad ctrl reg */ + u32 io_control_psc2_2; /* PSC2_2 pad ctrl reg */ + u32 io_control_psc2_3; /* PSC2_3 pad ctrl reg */ + u32 io_control_psc2_4; /* PSC2_4 pad ctrl reg */ + u32 io_control_psc3_0; /* PSC3_0 pad ctrl reg */ + u32 io_control_psc3_1; /* PSC3_1 pad ctrl reg */ + u32 io_control_psc3_2; /* PSC3_2 pad ctrl reg */ + u32 io_control_psc3_3; /* PSC3_3 pad ctrl reg */ + u32 io_control_psc3_4; /* PSC3_4 pad ctrl reg */ + u32 io_control_psc4_0; /* PSC4_0 pad ctrl reg */ + u32 io_control_psc4_1; /* PSC4_1 pad ctrl reg */ + u32 io_control_psc4_2; /* PSC4_2 pad ctrl reg */ + u32 io_control_psc4_3; /* PSC4_3 pad ctrl reg */ + u32 io_control_psc4_4; /* PSC4_4 pad ctrl reg */ + u32 io_control_psc5_0; /* PSC5_0 pad ctrl reg */ + u32 io_control_psc5_1; /* PSC5_1 pad ctrl reg */ + u32 io_control_psc5_2; /* PSC5_2 pad ctrl reg */ + u32 io_control_psc5_3; /* PSC5_3 pad ctrl reg */ + u32 io_control_psc5_4; /* PSC5_4 pad ctrl reg */ + u32 io_control_psc6_0; /* PSC6_0 pad ctrl reg */ + u32 io_control_psc6_1; /* PSC6_1 pad ctrl reg */ + u32 io_control_psc6_2; /* PSC6_2 pad ctrl reg */ + u32 io_control_psc6_3; /* PSC6_3 pad ctrl reg */ + u32 io_control_psc6_4; /* PSC6_4 pad ctrl reg */ + u32 io_control_psc7_0; /* PSC7_0 pad ctrl reg */ + u32 io_control_psc7_1; /* PSC7_1 pad ctrl reg */ + u32 io_control_psc7_2; /* PSC7_2 pad ctrl reg */ + u32 io_control_psc7_3; /* PSC7_3 pad ctrl reg */ + u32 io_control_psc7_4; /* PSC7_4 pad ctrl reg */ + u32 io_control_psc8_0; /* PSC8_0 pad ctrl reg */ + u32 io_control_psc8_1; /* PSC8_1 pad ctrl reg */ + u32 io_control_psc8_2; /* PSC8_2 pad ctrl reg */ + u32 io_control_psc8_3; /* PSC8_3 pad ctrl reg */ + u32 io_control_psc8_4; /* PSC8_4 pad ctrl reg */ + u32 io_control_psc9_0; /* PSC9_0 pad ctrl reg */ + u32 io_control_psc9_1; /* PSC9_1 pad ctrl reg */ + u32 io_control_psc9_2; /* PSC9_2 pad ctrl reg */ + u32 io_control_psc9_3; /* PSC9_3 pad ctrl reg */ + u32 io_control_psc9_4; /* PSC9_4 pad ctrl reg */ + u32 io_control_psc10_0; /* PSC10_0 pad ctrl reg */ + u32 io_control_psc10_1; /* PSC10_1 pad ctrl reg */ + u32 io_control_psc10_2; /* PSC10_2 pad ctrl reg */ + u32 io_control_psc10_3; /* PSC10_3 pad ctrl reg */ + u32 io_control_psc10_4; /* PSC10_4 pad ctrl reg */ + u32 io_control_psc11_0; /* PSC11_0 pad ctrl reg */ + u32 io_control_psc11_1; /* PSC11_1 pad ctrl reg */ + u32 io_control_psc11_2; /* PSC11_2 pad ctrl reg */ + u32 io_control_psc11_3; /* PSC11_3 pad ctrl reg */ + u32 io_control_psc11_4; /* PSC11_4 pad ctrl reg */ + u32 io_control_ckstp_out; /* CKSTP_OUT pad ctrl reg */ + u32 io_control_usb_phy_drvvbus; /* USB2_DRVVBUS pad ctrl reg */ + u8 reserved[0x0cfc]; /* fill to 4096 bytes size */ +} ioctrl512x_t; + +/* Indexes in regs array */ +/* Set for DDR */ +#define IOCTRL_MUX_DDR 0x00000036 + +/* IO pin fields */ +#define IO_PIN_FMUX(v) ((v) << 7) /* pin function */ +#define IO_PIN_HOLD(v) ((v) << 5) /* hold time, pci only */ +#define IO_PIN_PUD(v) ((v) << 4) /* if PUE, 0=pull-down, 1=pull-up */ +#define IO_PIN_PUE(v) ((v) << 3) /* pull up/down enable */ +#define IO_PIN_ST(v) ((v) << 2) /* schmitt trigger */ +#define IO_PIN_DS(v) ((v)) /* slew rate */ + +typedef struct iopin_t { + int p_offset; /* offset from IOCTL_MEM_OFFSET */ + int nr_pins; /* number of pins to set this way */ + int bit_or; /* or in the value instead of overwrite */ + u_long val; /* value to write or or */ +}iopin_t; + +void iopin_initialize(iopin_t *,int); + +/* + * IIM + */ +typedef struct iim512x { + u32 stat; /* IIM status register */ + u32 statm; /* IIM status IRQ mask */ + u32 err; /* IIM errors register */ + u32 emask; /* IIM error IRQ mask */ + u32 fctl; /* IIM fuse control register */ + u32 ua; /* IIM upper address register */ + u32 la; /* IIM lower address register */ + u32 sdat; /* IIM explicit sense data */ + u8 res0[0x08]; + u32 prg_p; /* IIM program protection register */ + u8 res1[0x10]; + u32 divide; /* IIM divide factor register */ + u8 res2[0x7c0]; + u32 fbac0; /* IIM fuse bank 0 prot (for Freescale use) */ + u32 fb0w0[0x1f]; /* IIM fuse bank 0 data (for Freescale use) */ + u8 res3[0x380]; + u32 fbac1; /* IIM fuse bank 1 protection */ + u32 fb1w1[0x01f]; /* IIM fuse bank 1 data */ + u8 res4[0x380]; +} iim512x_t; + +/* + * LPC + */ +typedef struct lpc512x { + u32 cs_cfg[8]; /* Chip Select N Configuration Registers + No dedicated entry for CS Boot as == CS0 */ + u32 cs_cr; /* Chip Select Control Register */ + u32 cs_sr; /* Chip Select Status Register */ + u32 cs_bcr; /* Chip Select Burst Control Register */ + u32 cs_dccr; /* Chip Select Deadcycle Control Register */ + u32 cs_hccr; /* Chip Select Holdcycle Control Register */ + u32 altr; /* Address Latch Timing Register */ + u8 res0[0xc8]; + u32 sclpc_psr; /* SCLPC Packet Size Register */ + u32 sclpc_sar; /* SCLPC Start Address Register */ + u32 sclpc_cr; /* SCLPC Control Register */ + u32 sclpc_er; /* SCLPC Enable Register */ + u32 sclpc_nar; /* SCLPC NextAddress Register */ + u32 sclpc_sr; /* SCLPC Status Register */ + u32 sclpc_bdr; /* SCLPC Bytes Done Register */ + u32 emb_scr; /* EMB Share Counter Register */ + u32 emb_pcr; /* EMB Pause Control Register */ + u8 res1[0x1c]; + u32 lpc_fdwr; /* LPC RX/TX FIFO Data Word Register */ + u32 lpc_fsr; /* LPC RX/TX FIFO Status Register */ + u32 lpc_cr; /* LPC RX/TX FIFO Control Register */ + u32 lpc_ar; /* LPC RX/TX FIFO Alarm Register */ + u8 res2[0xb0]; +} lpc512x_t; + +/* + * PATA + */ +typedef struct pata512x { + /* LOCAL Registers */ + u32 pata_time1; /* Time register 1: PIO and tx timing parameter */ + u32 pata_time2; /* Time register 2: PIO timing parameter */ + u32 pata_time3; /* Time register 3: PIO and MDMA timing parameter */ + u32 pata_time4; /* Time register 4: MDMA and UDMA timing parameter */ + u32 pata_time5; /* Time register 5: UDMA timing parameter */ + u32 pata_time6; /* Time register 6: UDMA timing parameter */ + u32 pata_fifo_data32; /* 32bit wide dataport to/from FIFO */ + u32 pata_fifo_data16; /* 16bit wide dataport to/from FIFO */ + u32 pata_fifo_fill; /* FIFO filling in halfwords (READONLY)*/ + u32 pata_ata_control; /* ATA Interface control register */ + u32 pata_irq_pending; /* Interrupt pending register (READONLY) */ + u32 pata_irq_enable; /* Interrupt enable register */ + u32 pata_irq_clear; /* Interrupt clear register (WRITEONLY)*/ + u32 pata_fifo_alarm; /* fifo alarm threshold */ + u32 res1[0x1A]; + /* DRIVE Registers */ + u32 pata_drive_data; /* drive data register*/ + u32 pata_drive_features;/* drive features register */ + u32 pata_drive_sectcnt; /* drive sector count register */ + u32 pata_drive_sectnum; /* drive sector number register */ + u32 pata_drive_cyllow; /* drive cylinder low register */ + u32 pata_drive_cylhigh; /* drive cylinder high register */ + u32 pata_drive_dev_head;/* drive device head register */ + u32 pata_drive_command; /* write = drive command, read = drive status reg */ + u32 res2[0x06]; + u32 pata_drive_alt_stat;/* write = drive control, read = drive alt status reg */ + u32 res3[0x09]; +} pata512x_t; + +/* + * PSC + */ +typedef struct psc512x { + volatile u8 mode; /* PSC + 0x00 */ + volatile u8 res0[3]; + union { /* PSC + 0x04 */ + volatile u16 status; + volatile u16 clock_select; + } sr_csr; +#define psc_status sr_csr.status +#define psc_clock_select sr_csr.clock_select + volatile u16 res1; + volatile u8 command; /* PSC + 0x08 */ + volatile u8 res2[3]; + union { /* PSC + 0x0c */ + volatile u8 buffer_8; + volatile u16 buffer_16; + volatile u32 buffer_32; + } buffer; +#define psc_buffer_8 buffer.buffer_8 +#define psc_buffer_16 buffer.buffer_16 +#define psc_buffer_32 buffer.buffer_32 + union { /* PSC + 0x10 */ + volatile u8 ipcr; + volatile u8 acr; + } ipcr_acr; +#define psc_ipcr ipcr_acr.ipcr +#define psc_acr ipcr_acr.acr + volatile u8 res3[3]; + union { /* PSC + 0x14 */ + volatile u16 isr; + volatile u16 imr; + } isr_imr; +#define psc_isr isr_imr.isr +#define psc_imr isr_imr.imr + volatile u16 res4; + volatile u8 ctur; /* PSC + 0x18 */ + volatile u8 res5[3]; + volatile u8 ctlr; /* PSC + 0x1c */ + volatile u8 res6[3]; + volatile u32 ccr; /* PSC + 0x20 */ + volatile u8 res7[12]; + volatile u8 ivr; /* PSC + 0x30 */ + volatile u8 res8[3]; + volatile u8 ip; /* PSC + 0x34 */ + volatile u8 res9[3]; + volatile u8 op1; /* PSC + 0x38 */ + volatile u8 res10[3]; + volatile u8 op0; /* PSC + 0x3c */ + volatile u8 res11[3]; + volatile u32 sicr; /* PSC + 0x40 */ + volatile u8 res12[60]; + volatile u32 tfcmd; /* PSC + 0x80 */ + volatile u32 tfalarm; /* PSC + 0x84 */ + volatile u32 tfstat; /* PSC + 0x88 */ + volatile u32 tfintstat; /* PSC + 0x8C */ + volatile u32 tfintmask; /* PSC + 0x90 */ + volatile u32 tfcount; /* PSC + 0x94 */ + volatile u16 tfwptr; /* PSC + 0x98 */ + volatile u16 tfrptr; /* PSC + 0x9A */ + volatile u32 tfsize; /* PSC + 0x9C */ + volatile u8 res13[28]; + union { /* PSC + 0xBC */ + volatile u8 buffer_8; + volatile u16 buffer_16; + volatile u32 buffer_32; + } tfdata_buffer; +#define tfdata_8 tfdata_buffer.buffer_8 +#define tfdata_16 tfdata_buffer.buffer_16 +#define tfdata_32 tfdata_buffer.buffer_32 + + volatile u32 rfcmd; /* PSC + 0xC0 */ + volatile u32 rfalarm; /* PSC + 0xC4 */ + volatile u32 rfstat; /* PSC + 0xC8 */ + volatile u32 rfintstat; /* PSC + 0xCC */ + volatile u32 rfintmask; /* PSC + 0xD0 */ + volatile u32 rfcount; /* PSC + 0xD4 */ + volatile u16 rfwptr; /* PSC + 0xD8 */ + volatile u16 rfrptr; /* PSC + 0xDA */ + volatile u32 rfsize; /* PSC + 0xDC */ + volatile u8 res18[28]; + union { /* PSC + 0xFC */ + volatile u8 buffer_8; + volatile u16 buffer_16; + volatile u32 buffer_32; + } rfdata_buffer; +#define rfdata_8 rfdata_buffer.buffer_8 +#define rfdata_16 rfdata_buffer.buffer_16 +#define rfdata_32 rfdata_buffer.buffer_32 +} psc512x_t; + +/* PSC FIFO Command values */ +#define PSC_FIFO_RESET_SLICE 0x80 +#define PSC_FIFO_ENABLE_SLICE 0x01 + +/* PSC FIFO Controller Command values */ +#define FIFOC_ENABLE_CLOCK_GATE 0x01 +#define FIFOC_DISABLE_CLOCK_GATE 0x00 + +/* PSC FIFO status */ +#define PSC_FIFO_EMPTY 0x01 + +/* PSC Command values */ +#define PSC_RX_ENABLE 0x01 +#define PSC_RX_DISABLE 0x02 +#define PSC_TX_ENABLE 0x04 +#define PSC_TX_DISABLE 0x08 +#define PSC_SEL_MODE_REG_1 0x10 +#define PSC_RST_RX 0x20 +#define PSC_RST_TX 0x30 +#define PSC_RST_ERR_STAT 0x40 +#define PSC_RST_BRK_CHG_INT 0x50 +#define PSC_START_BRK 0x60 +#define PSC_STOP_BRK 0x70 + +/* PSC status register bits */ +#define PSC_SR_CDE 0x0080 +#define PSC_SR_TXEMP 0x0800 +#define PSC_SR_OE 0x1000 +#define PSC_SR_PE 0x2000 +#define PSC_SR_FE 0x4000 +#define PSC_SR_RB 0x8000 + +/* PSC mode fields */ +#define PSC_MODE_5_BITS 0x00 +#define PSC_MODE_6_BITS 0x01 +#define PSC_MODE_7_BITS 0x02 +#define PSC_MODE_8_BITS 0x03 +#define PSC_MODE_PAREVEN 0x00 +#define PSC_MODE_PARODD 0x04 +#define PSC_MODE_PARFORCE 0x08 +#define PSC_MODE_PARNONE 0x10 +#define PSC_MODE_ENTIMEOUT 0x20 +#define PSC_MODE_RXRTS 0x80 +#define PSC_MODE_1_STOPBIT 0x07 + +/* + * FIFOC + */ +typedef struct fifoc512x { + u32 fifoc_cmd; + u32 fifoc_int; + u32 fifoc_dma; + u32 fifoc_axe; + u32 fifoc_debug; + u8 fixme[0xEC]; +} fifoc512x_t; + +/* + * Centralized FIFO Controller has internal memory for all 12 PSCs FIFOs + * + * NOTE: individual PSC units are free to use whatever area (and size) of the + * FIFOC internal memory, so make sure memory areas for FIFO slices used by + * different PSCs do not overlap! + * + * Overall size of FIFOC memory is not documented in the MPC5121e RM, but + * tests indicate that it is 1024 words total. + */ +#define FIFOC_PSC0_TX_SIZE 0x0 /* number of 4-byte words for FIFO slice */ +#define FIFOC_PSC0_TX_ADDR 0x0 +#define FIFOC_PSC0_RX_SIZE 0x0 +#define FIFOC_PSC0_RX_ADDR 0x0 + +#define FIFOC_PSC1_TX_SIZE 0x0 +#define FIFOC_PSC1_TX_ADDR 0x0 +#define FIFOC_PSC1_RX_SIZE 0x0 +#define FIFOC_PSC1_RX_ADDR 0x0 + +#define FIFOC_PSC2_TX_SIZE 0x0 +#define FIFOC_PSC2_TX_ADDR 0x0 +#define FIFOC_PSC2_RX_SIZE 0x0 +#define FIFOC_PSC2_RX_ADDR 0x0 + +#define FIFOC_PSC3_TX_SIZE 0x04 +#define FIFOC_PSC3_TX_ADDR 0x0 +#define FIFOC_PSC3_RX_SIZE 0x04 +#define FIFOC_PSC3_RX_ADDR 0x10 + +#define FIFOC_PSC4_TX_SIZE 0x0 +#define FIFOC_PSC4_TX_ADDR 0x0 +#define FIFOC_PSC4_RX_SIZE 0x0 +#define FIFOC_PSC4_RX_ADDR 0x0 + +#define FIFOC_PSC5_TX_SIZE 0x0 +#define FIFOC_PSC5_TX_ADDR 0x0 +#define FIFOC_PSC5_RX_SIZE 0x0 +#define FIFOC_PSC5_RX_ADDR 0x0 + +#define FIFOC_PSC6_TX_SIZE 0x0 +#define FIFOC_PSC6_TX_ADDR 0x0 +#define FIFOC_PSC6_RX_SIZE 0x0 +#define FIFOC_PSC6_RX_ADDR 0x0 + +#define FIFOC_PSC7_TX_SIZE 0x0 +#define FIFOC_PSC7_TX_ADDR 0x0 +#define FIFOC_PSC7_RX_SIZE 0x0 +#define FIFOC_PSC7_RX_ADDR 0x0 + +#define FIFOC_PSC8_TX_SIZE 0x0 +#define FIFOC_PSC8_TX_ADDR 0x0 +#define FIFOC_PSC8_RX_SIZE 0x0 +#define FIFOC_PSC8_RX_ADDR 0x0 + +#define FIFOC_PSC9_TX_SIZE 0x0 +#define FIFOC_PSC9_TX_ADDR 0x0 +#define FIFOC_PSC9_RX_SIZE 0x0 +#define FIFOC_PSC9_RX_ADDR 0x0 + +#define FIFOC_PSC10_TX_SIZE 0x0 +#define FIFOC_PSC10_TX_ADDR 0x0 +#define FIFOC_PSC10_RX_SIZE 0x0 +#define FIFOC_PSC10_RX_ADDR 0x0 + +#define FIFOC_PSC11_TX_SIZE 0x0 +#define FIFOC_PSC11_TX_ADDR 0x0 +#define FIFOC_PSC11_RX_SIZE 0x0 +#define FIFOC_PSC11_RX_ADDR 0x0 + +/* + * SATA + */ +typedef struct sata512x { + u8 fixme[0x2000]; +} sata512x_t; + +typedef struct immap { + sysconf512x_t sysconf; /* System configuration */ + u8 res0[0x700]; + wdt512x_t wdt; /* Watch Dog Timer (WDT) */ + rtclk512x_t rtc; /* Real Time Clock Module */ + gpt512x_t gpt; /* General Purpose Timer */ + ipic512x_t ipic; /* Integrated Programmable Interrupt Controller */ + arbiter512x_t arbiter; /* CSB Arbiter */ + reset512x_t reset; /* Reset Module */ + clk512x_t clk; /* Clock Module */ + pmc512x_t pmc; /* Power Management Control Module */ + gpio512x_t gpio; /* General purpose I/O module */ + u8 res1[0x100]; + mscan512x_t mscan; /* MSCAN */ + bdlc512x_t bdlc; /* BDLC */ + sdhc512x_t sdhc; /* SDHC */ + spdif512x_t spdif; /* SPDIF */ + i2c512x_t i2c; /* I2C Controllers */ + u8 res2[0x800]; + axe512x_t axe; /* AXE */ + diu512x_t diu; /* Display Interface Unit */ + cfm512x_t cfm; /* Clock Frequency Measurement */ + u8 res3[0x500]; + fec512x_t fec; /* Fast Ethernet Controller */ + ulpi512x_t ulpi; /* USB ULPI */ + u8 res4[0xa00]; + utmi512x_t utmi; /* USB UTMI */ + u8 res5[0x1000]; + pcidma512x_t pci_dma; /* PCI DMA */ + pciconf512x_t pci_conf; /* PCI Configuration */ + u8 res6[0x80]; + ios512x_t ios; /* PCI Sequencer */ + pcictrl512x_t pci_ctrl; /* PCI Controller Control and Status */ + u8 res7[0xa00]; + ddr512x_t mddrc; /* Multi-port DDR Memory Controller */ + ioctrl512x_t io_ctrl; /* IO Control */ + iim512x_t iim; /* IC Identification module */ + u8 res8[0x4000]; + lpc512x_t lpc; /* LocalPlus Controller */ + pata512x_t pata; /* Parallel ATA */ + u8 res9[0xd00]; + psc512x_t psc[12]; /* PSCs */ + u8 res10[0x300]; + fifoc512x_t fifoc; /* FIFO Controller */ + u8 res11[0x2000]; + dma512x_t dma; /* DMA */ + u8 res12[0xa800]; + sata512x_t sata; /* Serial ATA */ + u8 res13[0xde000]; +} immap_t; + +/* provide interface to get PATA base address */ +static inline u32 get_pata_base (void) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + return (u32)(&im->pata); +} +#endif /* __ASSEMBLY__ */ + +#endif /* __IMMAP_512x__ */ diff --git a/arch/ppc/include/asm/immap_8220.h b/arch/ppc/include/asm/immap_8220.h new file mode 100644 index 0000000..f9595f4 --- /dev/null +++ b/arch/ppc/include/asm/immap_8220.h @@ -0,0 +1,246 @@ +/* + * MPC8220 Internal Memory Map + * Copyright (c) 2004 TsiChung Liew (Tsi-Chung.Liew@freescale.com) + * + * The Internal Memory Map of the 8220. + * + */ +#ifndef __IMMAP_MPC8220__ +#define __IMMAP_MPC8220__ + +/* + * System configuration registers. + */ +typedef struct sys_conf { + u16 mbar; /* 0x00 */ + u16 res1; + + u16 res2; /* 0x04 */ + u16 sdramds; + + u32 res3[6]; /* 0x08 */ + + u32 cscfg[6]; /* 0x20 */ + + u32 res4[2]; /* 0x38 */ + + u8 res5[3]; /* 0x40 */ + u8 rstctrl; + + u8 res6[3]; /* 0x44 */ + u8 rststat; + + u32 res7[2]; /* 0x48 */ + + u32 jtagid; /* 0x50 */ +} sysconf8220_t; + + +/* + * Memory controller registers. + */ +typedef struct mem_ctlr { + ushort mode; /* 0x100 */ + ushort res1; + u32 ctrl; /* 0x104 */ + u32 cfg1; /* 0x108 */ + u32 cfg2; /* 0x10c */ +} memctl8220_t; + +/* + * XLB Arbitration registers + */ +typedef struct xlb_arb +{ + uint res1[16]; /* 0x200 */ + uint config; /* 0x240 */ + uint version; /* 0x244 */ + uint status; /* 0x248 */ + uint intEnable; /* 0x24c */ + uint addrCap; /* 0x250 */ + uint busSigCap; /* 0x254 */ + uint addrTenTimeOut; /* 0x258 */ + uint dataTenTimeOut; /* 0x25c */ + uint busActTimeOut; /* 0x260 */ + uint mastPriEn; /* 0x264 */ + uint mastPriority; /* 0x268 */ + uint baseAddr; /* 0x26c */ +} xlbarb8220_t; + +/* + * Flexbus registers + */ +typedef struct flexbus +{ + ushort csar0; /* 0x00 */ + ushort res1; + uint csmr0; /* 0x04 */ + uint cscr0; /* 0x08 */ + + ushort csar1; /* 0x0c */ + ushort res2; + uint csmr1; /* 0x10 */ + uint cscr1; /* 0x14 */ + + ushort csar2; /* 0x18 */ + ushort res3; + uint csmr2; /* 0x1c */ + uint cscr2; /* 0x20 */ + + ushort csar3; /* 0x24 */ + ushort res4; + uint csmr3; /* 0x28 */ + uint cscr3; /* 0x2c */ + + ushort csar4; /* 0x30 */ + ushort res5; + uint csmr4; /* 0x34 */ + uint cscr4; /* 0x38 */ + + ushort csar5; /* 0x3c */ + ushort res6; + uint csmr5; /* 0x40 */ + uint cscr5; /* 0x44 */ +} flexbus8220_t; + +/* + * GPIO registers + */ +typedef struct gpio +{ + u32 out; /* 0x00 */ + u32 obs; /* 0x04 */ + u32 obc; /* 0x08 */ + u32 obt; /* 0x0c */ + u32 en; /* 0x10 */ + u32 ebs; /* 0x14 */ + u32 ebc; /* 0x18 */ + u32 ebt; /* 0x1c */ + u32 mc; /* 0x20 */ + u32 st; /* 0x24 */ + u32 intr; /* 0x28 */ +} gpio8220_t; + +/* + * General Purpose Timer registers + */ +typedef struct gptimer +{ + u8 OCPW; + u8 OctIct; + u8 Control; + u8 Mode; + + u16 Prescl; /* Prescale */ + u16 Count; /* Count */ + + u16 PwmWid; /* PWM Width */ + u8 PwmOp; /* Output Polarity */ + u8 PwmLd; /* Immediate Update */ + + u16 Capture; /* Capture internal counter */ + u8 OvfPin; /* Ovf and Pin */ + u8 Int; /* Interrupts */ +} gptmr8220_t; + +/* + * PSC registers + */ +typedef struct psc +{ + u32 mr1_2; /* 0x00 Mode reg 1 & 2 */ + u32 sr_csr; /* 0x04 Status/Clock Select reg */ + u32 cr; /* 0x08 Command reg */ + u8 xmitbuf[4]; /* 0x0c Receive/Transmit Buffer */ + u32 ipcr_acr; /* 0x10 Input Port Change/Auxiliary Control reg */ + u32 isr_imr; /* 0x14 Interrupt Status/Mask reg */ + u32 ctur; /* 0x18 Counter Timer Upper reg */ + u32 ctlr; /* 0x1c Counter Timer Lower reg */ + u32 rsvd1[4]; /* 0x20 ... 0x2c */ + u32 ivr; /* 0x30 Interrupt Vector reg */ + u32 ipr; /* 0x34 Input Port reg */ + u32 opsetr; /* 0x38 Output Port Set reg */ + u32 opresetr; /* 0x3c Output Port Reset reg */ + u32 sicr; /* 0x40 PSC/IrDA control reg */ + u32 ircr1; /* 0x44 IrDA control reg 1*/ + u32 ircr2; /* 0x48 IrDA control reg 2*/ + u32 irsdr; /* 0x4c IrDA SIR Divide reg */ + u32 irmdr; /* 0x50 IrDA MIR Divide reg */ + u32 irfdr; /* 0x54 PSC IrDA FIR Divide reg */ + u32 rfnum; /* 0x58 RX-FIFO counter */ + u32 txnum; /* 0x5c TX-FIFO counter */ + u32 rfdata; /* 0x60 RX-FIFO data */ + u32 rfstat; /* 0x64 RX-FIFO status */ + u32 rfcntl; /* 0x68 RX-FIFO control */ + u32 rfalarm; /* 0x6c RX-FIFO alarm */ + u32 rfrptr; /* 0x70 RX-FIFO read pointer */ + u32 rfwptr; /* 0x74 RX-FIFO write pointer */ + u32 rflfrptr; /* 0x78 RX-FIFO last read frame pointer */ + u32 rflfwptr; /* 0x7c RX-FIFO last write frame pointer */ + + u32 tfdata; /* 0x80 TX-FIFO data */ + u32 tfstat; /* 0x84 TX-FIFO status */ + u32 tfcntl; /* 0x88 TX-FIFO control */ + u32 tfalarm; /* 0x8c TX-FIFO alarm */ + u32 tfrptr; /* 0x90 TX-FIFO read pointer */ + u32 tfwptr; /* 0x94 TX-FIFO write pointer */ + u32 tflfrptr; /* 0x98 TX-FIFO last read frame pointer */ + u32 tflfwptr; /* 0x9c TX-FIFO last write frame pointer */ +} psc8220_t; + +/* + * Interrupt Controller registers + */ +typedef struct interrupt_controller { +} intctl8220_t; + + +/* Fast controllers +*/ + +/* + * I2C registers + */ +typedef struct i2c +{ + u8 adr; /* 0x00 */ + u8 res1[3]; + u8 fdr; /* 0x04 */ + u8 res2[3]; + u8 cr; /* 0x08 */ + u8 res3[3]; + u8 sr; /* 0x0C */ + u8 res4[3]; + u8 dr; /* 0x10 */ + u8 res5[3]; + u32 reserved0; /* 0x14 */ + u32 reserved1; /* 0x18 */ + u32 reserved2; /* 0x1c */ + u8 icr; /* 0x20 */ + u8 res6[3]; +} i2c8220_t; + +/* + * Port Configuration Registers + */ +typedef struct pcfg +{ + uint pcfg0; /* 0x00 */ + uint pcfg1; /* 0x04 */ + uint pcfg2; /* 0x08 */ + uint pcfg3; /* 0x0c */ +} pcfg8220_t; + +/* ...and the whole thing wrapped up.... +*/ +typedef struct immap { + sysconf8220_t im_sysconf; /* System Configuration */ + memctl8220_t im_memctl; /* Memory Controller */ + xlbarb8220_t im_xlbarb; /* XLB Arbitration */ + psc8220_t im_psc; /* PSC controller */ + flexbus8220_t im_fb; /* FlexBus Controller */ + i2c8220_t im_i2c; /* I2C control/status */ + pcfg8220_t im_pcfg; /* Port configuration */ +} immap_t; + +#endif /* __IMMAP_MPC8220__ */ diff --git a/arch/ppc/include/asm/immap_8260.h b/arch/ppc/include/asm/immap_8260.h new file mode 100644 index 0000000..4974ae5 --- /dev/null +++ b/arch/ppc/include/asm/immap_8260.h @@ -0,0 +1,599 @@ +/* + * MPC8260 Internal Memory Map + * Copyright (c) 1999 Dan Malek (dmalek@jlc.net) + * + * The Internal Memory Map of the 8260. I don't know how generic + * this will be, as I don't have any knowledge of the subsequent + * parts at this time. I copied this from the 8xx_immap.h. + */ +#ifndef __IMMAP_82XX__ +#define __IMMAP_82XX__ + +/* System configuration registers. +*/ +typedef struct sys_conf { + uint sc_siumcr; + uint sc_sypcr; + char res1[6]; + ushort sc_swsr; + char res2[20]; + uint sc_bcr; + u_char sc_ppc_acr; + char res3[3]; + uint sc_ppc_alrh; + uint sc_ppc_alrl; + u_char sc_lcl_acr; + char res4[3]; + uint sc_lcl_alrh; + uint sc_lcl_alrl; + uint sc_tescr1; + uint sc_tescr2; + uint sc_ltescr1; + uint sc_ltescr2; + uint sc_pdtea; + u_char sc_pdtem; + char res5[3]; + uint sc_ldtea; + u_char sc_ldtem; + char res6[163]; +} sysconf8260_t; + + +/* Memory controller registers. +*/ +typedef struct mem_ctlr { + uint memc_br0; + uint memc_or0; + uint memc_br1; + uint memc_or1; + uint memc_br2; + uint memc_or2; + uint memc_br3; + uint memc_or3; + uint memc_br4; + uint memc_or4; + uint memc_br5; + uint memc_or5; + uint memc_br6; + uint memc_or6; + uint memc_br7; + uint memc_or7; + uint memc_br8; + uint memc_or8; + uint memc_br9; + uint memc_or9; + uint memc_br10; + uint memc_or10; + uint memc_br11; + uint memc_or11; + char res1[8]; + uint memc_mar; + char res2[4]; + uint memc_mamr; + uint memc_mbmr; + uint memc_mcmr; + char res3[8]; + ushort memc_mptpr; + char res4[2]; + uint memc_mdr; + char res5[4]; + uint memc_psdmr; + uint memc_lsdmr; + u_char memc_purt; + char res6[3]; + u_char memc_psrt; + char res7[3]; + u_char memc_lurt; + char res8[3]; + u_char memc_lsrt; + char res9[3]; + uint memc_immr; + uint memc_pcibr0; + uint memc_pcibr1; + char res10[16]; + uint memc_pcimsk0; + uint memc_pcimsk1; + char res11[52]; +} memctl8260_t; + +/* System Integration Timers. +*/ +typedef struct sys_int_timers { + char res1[32]; + ushort sit_tmcntsc; + char res2[2]; + uint sit_tmcnt; + char res3[4]; + uint sit_tmcntal; + char res4[16]; + ushort sit_piscr; + char res5[2]; + uint sit_pitc; + uint sit_pitr; + char res6[94]; + char res7[390]; +} sit8260_t; + +/* PCI + */ +typedef struct pci_config { + uint pci_omisr; + uint pci_ominr; + char res1[8]; + uint pci_ifqpr; + uint pci_ofqpr; + char res2[8]; + uint pci_imr0; + uint pci_imr1; + uint pci_omr0; + uint pci_omr1; + uint pci_odr; + char res3[4]; + uint pci_idr; + char res4[20]; + uint pci_imisr; + uint pci_imimr; + char res5[24]; + uint pci_ifhpr; + char res5_2[4]; + uint pci_iftpr; + char res6[4]; + uint pci_iphpr; + char res6_2[4]; + uint pci_iptpr; + char res7[4]; + uint pci_ofhpr; + char res7_2[4]; + uint pci_oftpr; + char res8[4]; + uint pci_ophpr; + char res8_2[4]; + uint pci_optpr; + char res9[8]; + uint pci_mucr; + char res10[8]; + uint pci_qbar; + char res11[12]; + uint pci_dmamr0; + uint pci_dmasr0; + uint pci_dmacdar0; + char res12[4]; + uint pci_dmasar0; + char res13[4]; + uint pci_dmadar0; + char res14[4]; + uint pci_dmabcr0; + uint pci_dmandar0; + char res15[88]; + uint pci_dmamr1; + uint pci_dmasr1; + uint pci_dmacdar1; + char res16[4]; + uint pci_dmasar1; + char res17[4]; + uint pci_dmadar1; + char res18[4]; + uint pci_dmabcr1; + uint pci_dmandar1; + char res19[88]; + uint pci_dmamr2; + uint pci_dmasr2; + uint pci_dmacdar2; + char res20[4]; + uint pci_dmasar2; + char res21[4]; + uint pci_dmadar2; + char res22[4]; + uint pci_dmabcr2; + uint pci_dmandar2; + char res23[88]; + uint pci_dmamr3; + uint pci_dmasr3; + uint pci_dmacdar3; + char res24[4]; + uint pci_dmasar3; + char res25[4]; + uint pci_dmadar3; + char res26[4]; + uint pci_dmabcr3; + uint pci_dmandar3; + char res27[344]; + uint pci_potar0; + char res28[4]; + uint pci_pobar0; + char res29[4]; + uint pci_pocmr0; + char res30[4]; + uint pci_potar1; + char res31[4]; + uint pci_pobar1; + char res32[4]; + uint pci_pocmr1; + char res33[4]; + uint pci_potar2; + char res34[4]; + uint pci_pobar2; + char res35[4]; + uint pci_pocmr2; + char res36[52]; + uint pci_ptcr; + uint pci_gpcr; + uint pci_gcr; + uint pci_esr; + uint pci_emr; + uint pci_ecr; + uint pci_eacr; + char res37[4]; + uint pci_edcr; + char res38[4]; + uint pci_eccr; + char res39[44]; + uint pci_pitar1; + char res40[4]; + uint pci_pibar1; + char res41[4]; + uint pci_picmr1; + char res42[4]; + uint pci_pitar0; + char res43[4]; + uint pci_pibar0; + char res44[4]; + uint pci_picmr0; + char res45[4]; + uint pci_cfg_addr; + uint pci_cfg_data; + uint pci_int_ack; + char res46[756]; +}pci8260_t; +#define PISCR_PIRQ_MASK ((ushort)0xff00) +#define PISCR_PS ((ushort)0x0080) +#define PISCR_PIE ((ushort)0x0004) +#define PISCR_PTF ((ushort)0x0002) +#define PISCR_PTE ((ushort)0x0001) + +/* Interrupt Controller. +*/ +typedef struct interrupt_controller { + ushort ic_sicr; + char res1[2]; + uint ic_sivec; + uint ic_sipnrh; + uint ic_sipnrl; + uint ic_siprr; + uint ic_scprrh; + uint ic_scprrl; + uint ic_simrh; + uint ic_simrl; + uint ic_siexr; + char res2[88]; +} intctl8260_t; + +/* Clocks and Reset. +*/ +typedef struct clk_and_reset { + uint car_sccr; + char res1[4]; + uint car_scmr; + char res2[4]; + uint car_rsr; + uint car_rmr; + char res[104]; +} car8260_t; + +/* Input/Output Port control/status registers. + * Names consistent with processor manual, although they are different + * from the original 8xx names....... + */ +typedef struct io_port { + uint iop_pdira; + uint iop_ppara; + uint iop_psora; + uint iop_podra; + uint iop_pdata; + char res1[12]; + uint iop_pdirb; + uint iop_pparb; + uint iop_psorb; + uint iop_podrb; + uint iop_pdatb; + char res2[12]; + uint iop_pdirc; + uint iop_pparc; + uint iop_psorc; + uint iop_podrc; + uint iop_pdatc; + char res3[12]; + uint iop_pdird; + uint iop_ppard; + uint iop_psord; + uint iop_podrd; + uint iop_pdatd; + char res4[12]; +} iop8260_t; + +/* Communication Processor Module Timers +*/ +typedef struct cpm_timers { + u_char cpmt_tgcr1; + char res1[3]; + u_char cpmt_tgcr2; + char res2[11]; + ushort cpmt_tmr1; + ushort cpmt_tmr2; + ushort cpmt_trr1; + ushort cpmt_trr2; + ushort cpmt_tcr1; + ushort cpmt_tcr2; + ushort cpmt_tcn1; + ushort cpmt_tcn2; + ushort cpmt_tmr3; + ushort cpmt_tmr4; + ushort cpmt_trr3; + ushort cpmt_trr4; + ushort cpmt_tcr3; + ushort cpmt_tcr4; + ushort cpmt_tcn3; + ushort cpmt_tcn4; + ushort cpmt_ter1; + ushort cpmt_ter2; + ushort cpmt_ter3; + ushort cpmt_ter4; + char res3[584]; +} cpmtimer8260_t; + +/* DMA control/status registers. +*/ +typedef struct sdma_csr { + char res0[24]; + u_char sdma_sdsr; + char res1[3]; + u_char sdma_sdmr; + char res2[3]; + u_char sdma_idsr1; + char res3[3]; + u_char sdma_idmr1; + char res4[3]; + u_char sdma_idsr2; + char res5[3]; + u_char sdma_idmr2; + char res6[3]; + u_char sdma_idsr3; + char res7[3]; + u_char sdma_idmr3; + char res8[3]; + u_char sdma_idsr4; + char res9[3]; + u_char sdma_idmr4; + char res10[707]; +} sdma8260_t; + +/* Fast controllers +*/ +typedef struct fcc { + uint fcc_gfmr; + uint fcc_fpsmr; + ushort fcc_ftodr; + char res1[2]; + ushort fcc_fdsr; + char res2[2]; + ushort fcc_fcce; + char res3[2]; + ushort fcc_fccm; + char res4[2]; + u_char fcc_fccs; + char res5[3]; + u_char fcc_ftirr_phy[4]; +} fcc_t; + +/* Fast controllers continued + */ +typedef struct fcc_c { + uint fcc_firper; + uint fcc_firer; + uint fcc_firsr_hi; + uint fcc_firsr_lo; + u_char fcc_gfemr; + char res1[15]; +} fcc_c_t; + +/* TC Layer + */ +typedef struct tclayer { + ushort tc_tcmode; + ushort tc_cdsmr; + ushort tc_tcer; + ushort tc_rcc; + ushort tc_tcmr; + ushort tc_fcc; + ushort tc_ccc; + ushort tc_icc; + ushort tc_tcc; + ushort tc_ecc; + char res1[12]; +} tclayer_t; + +/* I2C +*/ +typedef struct i2c { + u_char i2c_i2mod; + char res1[3]; + u_char i2c_i2add; + char res2[3]; + u_char i2c_i2brg; + char res3[3]; + u_char i2c_i2com; + char res4[3]; + u_char i2c_i2cer; + char res5[3]; + u_char i2c_i2cmr; + char res6[331]; +} i2c8260_t; + +typedef struct scc { /* Serial communication channels */ + uint scc_gsmrl; + uint scc_gsmrh; + ushort scc_psmr; + char res1[2]; + ushort scc_todr; + ushort scc_dsr; + ushort scc_scce; + char res2[2]; + ushort scc_sccm; + char res3; + u_char scc_sccs; + char res4[8]; +} scc_t; + +typedef struct smc { /* Serial management channels */ + char res1[2]; + ushort smc_smcmr; + char res2[2]; + u_char smc_smce; + char res3[3]; + u_char smc_smcm; + char res4[5]; +} smc_t; + +/* Serial Peripheral Interface. +*/ +typedef struct im_spi { + ushort spi_spmode; + char res1[4]; + u_char spi_spie; + char res2[3]; + u_char spi_spim; + char res3[2]; + u_char spi_spcom; + char res4[82]; +} im_spi_t; + +/* CPM Mux. +*/ +typedef struct cpmux { + u_char cmx_si1cr; + char res1; + u_char cmx_si2cr; + char res2; + uint cmx_fcr; + uint cmx_scr; + u_char cmx_smr; + char res3; + ushort cmx_uar; + char res4[16]; +} cpmux_t; + +/* SIRAM control +*/ +typedef struct siram { + ushort si_amr; + ushort si_bmr; + ushort si_cmr; + ushort si_dmr; + u_char si_gmr; + char res1; + u_char si_cmdr; + char res2; + u_char si_str; + char res3; + ushort si_rsr; +} siramctl_t; + +typedef struct mcc { + ushort mcc_mcce; + char res1[2]; + ushort mcc_mccm; + char res2[2]; + u_char mcc_mccf; + char res3[7]; +} mcc_t; + +typedef struct comm_proc { + uint cp_cpcr; + uint cp_rccr; + char res1[14]; + ushort cp_rter; + char res2[2]; + ushort cp_rtmr; + ushort cp_rtscr; + char res3[2]; + uint cp_rtsr; + char res4[12]; +} cpm8260_t; + +/* ...and the whole thing wrapped up.... +*/ +typedef struct immap { + /* Some references are into the unique and known dpram spaces, + * others are from the generic base. + */ +#define im_dprambase im_dpram1 + u_char im_dpram1[16*1024]; + char res1[16*1024]; + u_char im_dpram2[4*1024]; + char res2[8*1024]; + u_char im_dpram3[4*1024]; + char res3[16*1024]; + + sysconf8260_t im_siu_conf; /* SIU Configuration */ + memctl8260_t im_memctl; /* Memory Controller */ + sit8260_t im_sit; /* System Integration Timers */ + pci8260_t im_pci; /* PCI Configuration */ + intctl8260_t im_intctl; /* Interrupt Controller */ + car8260_t im_clkrst; /* Clocks and reset */ + iop8260_t im_ioport; /* IO Port control/status */ + cpmtimer8260_t im_cpmtimer; /* CPM timers */ + sdma8260_t im_sdma; /* SDMA control/status */ + + fcc_t im_fcc[3]; /* Three FCCs */ + + char res4[32]; + fcc_c_t im_fcc_c[3]; /* Continued FCCs */ + char res4a[32]; + + tclayer_t im_tclayer[8]; /* Eight TCLayers */ + ushort tc_tcgsr; + ushort tc_tcger; + + /* First set of baud rate generators. + */ + char res4b[236]; + uint im_brgc5; + uint im_brgc6; + uint im_brgc7; + uint im_brgc8; + + char res5[608]; + + i2c8260_t im_i2c; /* I2C control/status */ + cpm8260_t im_cpm; /* Communication processor */ + + /* Second set of baud rate generators. + */ + uint im_brgc1; + uint im_brgc2; + uint im_brgc3; + uint im_brgc4; + + scc_t im_scc[4]; /* Four SCCs */ + smc_t im_smc[2]; /* Couple of SMCs */ + im_spi_t im_spi; /* A SPI */ + cpmux_t im_cpmux; /* CPM clock route mux */ + siramctl_t im_siramctl1; /* First SI RAM Control */ + mcc_t im_mcc1; /* First MCC */ + siramctl_t im_siramctl2; /* Second SI RAM Control */ + mcc_t im_mcc2; /* Second MCC */ + + char res6[1184]; + + ushort im_si1txram[256]; + char res7[512]; + ushort im_si1rxram[256]; + char res8[512]; + ushort im_si2txram[256]; + char res9[512]; + ushort im_si2rxram[256]; + char res10[512]; + char res11[4096]; +} immap_t; + +#endif /* __IMMAP_82XX__ */ diff --git a/arch/ppc/include/asm/immap_83xx.h b/arch/ppc/include/asm/immap_83xx.h new file mode 100644 index 0000000..6b42a73 --- /dev/null +++ b/arch/ppc/include/asm/immap_83xx.h @@ -0,0 +1,877 @@ +/* + * Copyright 2004-2009 Freescale Semiconductor, Inc. + * + * MPC83xx Internal Memory Map + * + * Contributors: + * Dave Liu <daveliu@freescale.com> + * Tanya Jiang <tanya.jiang@freescale.com> + * Mandy Lavi <mandy.lavi@freescale.com> + * Eran Liberty <liberty@freescale.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ +#ifndef __IMMAP_83xx__ +#define __IMMAP_83xx__ + +#include <asm/types.h> +#include <asm/fsl_i2c.h> +#include <asm/mpc8xxx_spi.h> +#include <asm/fsl_lbc.h> +#include <asm/fsl_dma.h> + +/* + * Local Access Window + */ +typedef struct law83xx { + u32 bar; /* LBIU local access window base address register */ + u32 ar; /* LBIU local access window attribute register */ +} law83xx_t; + +/* + * System configuration registers + */ +typedef struct sysconf83xx { + u32 immrbar; /* Internal memory map base address register */ + u8 res0[0x04]; + u32 altcbar; /* Alternate configuration base address register */ + u8 res1[0x14]; + law83xx_t lblaw[4]; /* LBIU local access window */ + u8 res2[0x20]; + law83xx_t pcilaw[2]; /* PCI local access window */ + u8 res3[0x10]; + law83xx_t pcielaw[2]; /* PCI Express local access window */ + u8 res4[0x10]; + law83xx_t ddrlaw[2]; /* DDR local access window */ + u8 res5[0x50]; + u32 sgprl; /* System General Purpose Register Low */ + u32 sgprh; /* System General Purpose Register High */ + u32 spridr; /* System Part and Revision ID Register */ + u8 res6[0x04]; + u32 spcr; /* System Priority Configuration Register */ + u32 sicrl; /* System I/O Configuration Register Low */ + u32 sicrh; /* System I/O Configuration Register High */ + u8 res7[0x04]; + u32 sidcr0; /* System I/O Delay Configuration Register 0 */ + u32 sidcr1; /* System I/O Delay Configuration Register 1 */ + u32 ddrcdr; /* DDR Control Driver Register */ + u32 ddrdsr; /* DDR Debug Status Register */ + u32 obir; /* Output Buffer Impedance Register */ + u8 res8[0xC]; + u32 pecr1; /* PCI Express control register 1 */ + u32 pecr2; /* PCI Express control register 2 */ + u8 res9[0xB8]; +} sysconf83xx_t; + +/* + * Watch Dog Timer (WDT) Registers + */ +typedef struct wdt83xx { + u8 res0[4]; + u32 swcrr; /* System watchdog control register */ + u32 swcnr; /* System watchdog count register */ + u8 res1[2]; + u16 swsrr; /* System watchdog service register */ + u8 res2[0xF0]; +} wdt83xx_t; + +/* + * RTC/PIT Module Registers + */ +typedef struct rtclk83xx { + u32 cnr; /* control register */ + u32 ldr; /* load register */ + u32 psr; /* prescale register */ + u32 ctr; /* counter value field register */ + u32 evr; /* event register */ + u32 alr; /* alarm register */ + u8 res0[0xE8]; +} rtclk83xx_t; + +/* + * Global timer module + */ +typedef struct gtm83xx { + u8 cfr1; /* Timer1/2 Configuration */ + u8 res0[3]; + u8 cfr2; /* Timer3/4 Configuration */ + u8 res1[10]; + u16 mdr1; /* Timer1 Mode Register */ + u16 mdr2; /* Timer2 Mode Register */ + u16 rfr1; /* Timer1 Reference Register */ + u16 rfr2; /* Timer2 Reference Register */ + u16 cpr1; /* Timer1 Capture Register */ + u16 cpr2; /* Timer2 Capture Register */ + u16 cnr1; /* Timer1 Counter Register */ + u16 cnr2; /* Timer2 Counter Register */ + u16 mdr3; /* Timer3 Mode Register */ + u16 mdr4; /* Timer4 Mode Register */ + u16 rfr3; /* Timer3 Reference Register */ + u16 rfr4; /* Timer4 Reference Register */ + u16 cpr3; /* Timer3 Capture Register */ + u16 cpr4; /* Timer4 Capture Register */ + u16 cnr3; /* Timer3 Counter Register */ + u16 cnr4; /* Timer4 Counter Register */ + u16 evr1; /* Timer1 Event Register */ + u16 evr2; /* Timer2 Event Register */ + u16 evr3; /* Timer3 Event Register */ + u16 evr4; /* Timer4 Event Register */ + u16 psr1; /* Timer1 Prescaler Register */ + u16 psr2; /* Timer2 Prescaler Register */ + u16 psr3; /* Timer3 Prescaler Register */ + u16 psr4; /* Timer4 Prescaler Register */ + u8 res[0xC0]; +} gtm83xx_t; + +/* + * Integrated Programmable Interrupt Controller + */ +typedef struct ipic83xx { + u32 sicfr; /* System Global Interrupt Configuration Register */ + u32 sivcr; /* System Global Interrupt Vector Register */ + u32 sipnr_h; /* System Internal Interrupt Pending Register - High */ + u32 sipnr_l; /* System Internal Interrupt Pending Register - Low */ + u32 siprr_a; /* System Internal Interrupt Group A Priority Register */ + u8 res0[8]; + u32 siprr_d; /* System Internal Interrupt Group D Priority Register */ + u32 simsr_h; /* System Internal Interrupt Mask Register - High */ + u32 simsr_l; /* System Internal Interrupt Mask Register - Low */ + u8 res1[4]; + u32 sepnr; /* System External Interrupt Pending Register */ + u32 smprr_a; /* System Mixed Interrupt Group A Priority Register */ + u32 smprr_b; /* System Mixed Interrupt Group B Priority Register */ + u32 semsr; /* System External Interrupt Mask Register */ + u32 secnr; /* System External Interrupt Control Register */ + u32 sersr; /* System Error Status Register */ + u32 sermr; /* System Error Mask Register */ + u32 sercr; /* System Error Control Register */ + u8 res2[4]; + u32 sifcr_h; /* System Internal Interrupt Force Register - High */ + u32 sifcr_l; /* System Internal Interrupt Force Register - Low */ + u32 sefcr; /* System External Interrupt Force Register */ + u32 serfr; /* System Error Force Register */ + u32 scvcr; /* System Critical Interrupt Vector Register */ + u32 smvcr; /* System Management Interrupt Vector Register */ + u8 res3[0x98]; +} ipic83xx_t; + +/* + * System Arbiter Registers + */ +typedef struct arbiter83xx { + u32 acr; /* Arbiter Configuration Register */ + u32 atr; /* Arbiter Timers Register */ + u8 res[4]; + u32 aer; /* Arbiter Event Register */ + u32 aidr; /* Arbiter Interrupt Definition Register */ + u32 amr; /* Arbiter Mask Register */ + u32 aeatr; /* Arbiter Event Attributes Register */ + u32 aeadr; /* Arbiter Event Address Register */ + u32 aerr; /* Arbiter Event Response Register */ + u8 res1[0xDC]; +} arbiter83xx_t; + +/* + * Reset Module + */ +typedef struct reset83xx { + u32 rcwl; /* Reset Configuration Word Low Register */ + u32 rcwh; /* Reset Configuration Word High Register */ + u8 res0[8]; + u32 rsr; /* Reset Status Register */ + u32 rmr; /* Reset Mode Register */ + u32 rpr; /* Reset protection Register */ + u32 rcr; /* Reset Control Register */ + u32 rcer; /* Reset Control Enable Register */ + u8 res1[0xDC]; +} reset83xx_t; + +/* + * Clock Module + */ +typedef struct clk83xx { + u32 spmr; /* system PLL mode Register */ + u32 occr; /* output clock control Register */ + u32 sccr; /* system clock control Register */ + u8 res0[0xF4]; +} clk83xx_t; + +/* + * Power Management Control Module + */ +typedef struct pmc83xx { + u32 pmccr; /* PMC Configuration Register */ + u32 pmcer; /* PMC Event Register */ + u32 pmcmr; /* PMC Mask Register */ + u32 pmccr1; /* PMC Configuration Register 1 */ + u32 pmccr2; /* PMC Configuration Register 2 */ + u8 res0[0xEC]; +} pmc83xx_t; + +/* + * General purpose I/O module + */ +typedef struct gpio83xx { + u32 dir; /* direction register */ + u32 odr; /* open drain register */ + u32 dat; /* data register */ + u32 ier; /* interrupt event register */ + u32 imr; /* interrupt mask register */ + u32 icr; /* external interrupt control register */ + u8 res0[0xE8]; +} gpio83xx_t; + +/* + * QE Ports Interrupts Registers + */ +typedef struct qepi83xx { + u8 res0[0xC]; + u32 qepier; /* QE Ports Interrupt Event Register */ + u32 qepimr; /* QE Ports Interrupt Mask Register */ + u32 qepicr; /* QE Ports Interrupt Control Register */ + u8 res1[0xE8]; +} qepi83xx_t; + +/* + * QE Parallel I/O Ports + */ +typedef struct gpio_n { + u32 podr; /* Open Drain Register */ + u32 pdat; /* Data Register */ + u32 dir1; /* direction register 1 */ + u32 dir2; /* direction register 2 */ + u32 ppar1; /* Pin Assignment Register 1 */ + u32 ppar2; /* Pin Assignment Register 2 */ +} gpio_n_t; + +typedef struct qegpio83xx { + gpio_n_t ioport[0x7]; + u8 res0[0x358]; +} qepio83xx_t; + +/* + * QE Secondary Bus Access Windows + */ +typedef struct qesba83xx { + u32 lbmcsar; /* Local bus memory controller start address */ + u32 sdmcsar; /* Secondary DDR memory controller start address */ + u8 res0[0x38]; + u32 lbmcear; /* Local bus memory controller end address */ + u32 sdmcear; /* Secondary DDR memory controller end address */ + u8 res1[0x38]; + u32 lbmcar; /* Local bus memory controller attributes */ + u32 sdmcar; /* Secondary DDR memory controller attributes */ + u8 res2[0x378]; +} qesba83xx_t; + +/* + * DDR Memory Controller Memory Map + */ +typedef struct ddr_cs_bnds { + u32 csbnds; + u8 res0[4]; +} ddr_cs_bnds_t; + +typedef struct ddr83xx { + ddr_cs_bnds_t csbnds[4];/* Chip Select x Memory Bounds */ + u8 res0[0x60]; + u32 cs_config[4]; /* Chip Select x Configuration */ + u8 res1[0x70]; + u32 timing_cfg_3; /* SDRAM Timing Configuration 3 */ + u32 timing_cfg_0; /* SDRAM Timing Configuration 0 */ + u32 timing_cfg_1; /* SDRAM Timing Configuration 1 */ + u32 timing_cfg_2; /* SDRAM Timing Configuration 2 */ + u32 sdram_cfg; /* SDRAM Control Configuration */ + u32 sdram_cfg2; /* SDRAM Control Configuration 2 */ + u32 sdram_mode; /* SDRAM Mode Configuration */ + u32 sdram_mode2; /* SDRAM Mode Configuration 2 */ + u32 sdram_md_cntl; /* SDRAM Mode Control */ + u32 sdram_interval; /* SDRAM Interval Configuration */ + u32 ddr_data_init; /* SDRAM Data Initialization */ + u8 res2[4]; + u32 sdram_clk_cntl; /* SDRAM Clock Control */ + u8 res3[0x14]; + u32 ddr_init_addr; /* DDR training initialization address */ + u32 ddr_init_ext_addr; /* DDR training initialization extended address */ + u8 res4[0xAA8]; + u32 ddr_ip_rev1; /* DDR IP block revision 1 */ + u32 ddr_ip_rev2; /* DDR IP block revision 2 */ + u8 res5[0x200]; + u32 data_err_inject_hi; /* Memory Data Path Error Injection Mask High */ + u32 data_err_inject_lo; /* Memory Data Path Error Injection Mask Low */ + u32 ecc_err_inject; /* Memory Data Path Error Injection Mask ECC */ + u8 res6[0x14]; + u32 capture_data_hi; /* Memory Data Path Read Capture High */ + u32 capture_data_lo; /* Memory Data Path Read Capture Low */ + u32 capture_ecc; /* Memory Data Path Read Capture ECC */ + u8 res7[0x14]; + u32 err_detect; /* Memory Error Detect */ + u32 err_disable; /* Memory Error Disable */ + u32 err_int_en; /* Memory Error Interrupt Enable */ + u32 capture_attributes; /* Memory Error Attributes Capture */ + u32 capture_address; /* Memory Error Address Capture */ + u32 capture_ext_address;/* Memory Error Extended Address Capture */ + u32 err_sbe; /* Memory Single-Bit ECC Error Management */ + u8 res8[0xA4]; + u32 debug_reg; + u8 res9[0xFC]; +} ddr83xx_t; + +/* + * DUART + */ +typedef struct duart83xx { + u8 urbr_ulcr_udlb; /* combined register for URBR, UTHR and UDLB */ + u8 uier_udmb; /* combined register for UIER and UDMB */ + u8 uiir_ufcr_uafr; /* combined register for UIIR, UFCR and UAFR */ + u8 ulcr; /* line control register */ + u8 umcr; /* MODEM control register */ + u8 ulsr; /* line status register */ + u8 umsr; /* MODEM status register */ + u8 uscr; /* scratch register */ + u8 res0[8]; + u8 udsr; /* DMA status register */ + u8 res1[3]; + u8 res2[0xEC]; +} duart83xx_t; + +/* + * DMA/Messaging Unit + */ +typedef struct dma83xx { + u32 res0[0xC]; /* 0x0-0x29 reseverd */ + u32 omisr; /* 0x30 Outbound message interrupt status register */ + u32 omimr; /* 0x34 Outbound message interrupt mask register */ + u32 res1[0x6]; /* 0x38-0x49 reserved */ + u32 imr0; /* 0x50 Inbound message register 0 */ + u32 imr1; /* 0x54 Inbound message register 1 */ + u32 omr0; /* 0x58 Outbound message register 0 */ + u32 omr1; /* 0x5C Outbound message register 1 */ + u32 odr; /* 0x60 Outbound doorbell register */ + u32 res2; /* 0x64-0x67 reserved */ + u32 idr; /* 0x68 Inbound doorbell register */ + u32 res3[0x5]; /* 0x6C-0x79 reserved */ + u32 imisr; /* 0x80 Inbound message interrupt status register */ + u32 imimr; /* 0x84 Inbound message interrupt mask register */ + u32 res4[0x1E]; /* 0x88-0x99 reserved */ + struct fsl_dma dma[4]; +} dma83xx_t; + +/* + * PCI Software Configuration Registers + */ +typedef struct pciconf83xx { + u32 config_address; + u32 config_data; + u32 int_ack; + u8 res[116]; +} pciconf83xx_t; + +/* + * PCI Outbound Translation Register + */ +typedef struct pci_outbound_window { + u32 potar; + u8 res0[4]; + u32 pobar; + u8 res1[4]; + u32 pocmr; + u8 res2[4]; +} pot83xx_t; + +/* + * Sequencer + */ +typedef struct ios83xx { + pot83xx_t pot[6]; + u8 res0[0x60]; + u32 pmcr; + u8 res1[4]; + u32 dtcr; + u8 res2[4]; +} ios83xx_t; + +/* + * PCI Controller Control and Status Registers + */ +typedef struct pcictrl83xx { + u32 esr; + u32 ecdr; + u32 eer; + u32 eatcr; + u32 eacr; + u32 eeacr; + u32 edlcr; + u32 edhcr; + u32 gcr; + u32 ecr; + u32 gsr; + u8 res0[12]; + u32 pitar2; + u8 res1[4]; + u32 pibar2; + u32 piebar2; + u32 piwar2; + u8 res2[4]; + u32 pitar1; + u8 res3[4]; + u32 pibar1; + u32 piebar1; + u32 piwar1; + u8 res4[4]; + u32 pitar0; + u8 res5[4]; + u32 pibar0; + u8 res6[4]; + u32 piwar0; + u8 res7[132]; +} pcictrl83xx_t; + +/* + * USB + */ +typedef struct usb83xx { + u8 fixme[0x1000]; +} usb83xx_t; + +/* + * TSEC + */ +typedef struct tsec83xx { + u8 fixme[0x1000]; +} tsec83xx_t; + +/* + * Security + */ +typedef struct security83xx { + u8 fixme[0x10000]; +} security83xx_t; + +/* + * PCI Express + */ +struct pex_inbound_window { + u32 ar; + u32 tar; + u32 barl; + u32 barh; +}; + +struct pex_outbound_window { + u32 ar; + u32 bar; + u32 tarl; + u32 tarh; +}; + +struct pex_csb_bridge { + u32 pex_csb_ver; + u32 pex_csb_cab; + u32 pex_csb_ctrl; + u8 res0[8]; + u32 pex_dms_dstmr; + u8 res1[4]; + u32 pex_cbs_stat; + u8 res2[0x20]; + u32 pex_csb_obctrl; + u32 pex_csb_obstat; + u8 res3[0x98]; + u32 pex_csb_ibctrl; + u32 pex_csb_ibstat; + u8 res4[0xb8]; + u32 pex_wdma_ctrl; + u32 pex_wdma_addr; + u32 pex_wdma_stat; + u8 res5[0x94]; + u32 pex_rdma_ctrl; + u32 pex_rdma_addr; + u32 pex_rdma_stat; + u8 res6[0xd4]; + u32 pex_ombcr; + u32 pex_ombdr; + u8 res7[0x38]; + u32 pex_imbcr; + u32 pex_imbdr; + u8 res8[0x38]; + u32 pex_int_enb; + u32 pex_int_stat; + u32 pex_int_apio_vec1; + u32 pex_int_apio_vec2; + u8 res9[0x10]; + u32 pex_int_ppio_vec1; + u32 pex_int_ppio_vec2; + u32 pex_int_wdma_vec1; + u32 pex_int_wdma_vec2; + u32 pex_int_rdma_vec1; + u32 pex_int_rdma_vec2; + u32 pex_int_misc_vec; + u8 res10[4]; + u32 pex_int_axi_pio_enb; + u32 pex_int_axi_wdma_enb; + u32 pex_int_axi_rdma_enb; + u32 pex_int_axi_misc_enb; + u32 pex_int_axi_pio_stat; + u32 pex_int_axi_wdma_stat; + u32 pex_int_axi_rdma_stat; + u32 pex_int_axi_misc_stat; + u8 res11[0xa0]; + struct pex_outbound_window pex_outbound_win[4]; + u8 res12[0x100]; + u32 pex_epiwtar0; + u32 pex_epiwtar1; + u32 pex_epiwtar2; + u32 pex_epiwtar3; + u8 res13[0x70]; + struct pex_inbound_window pex_inbound_win[4]; +}; + +typedef struct pex83xx { + u8 pex_cfg_header[0x404]; + u32 pex_ltssm_stat; + u8 res0[0x30]; + u32 pex_ack_replay_timeout; + u8 res1[4]; + u32 pex_gclk_ratio; + u8 res2[0xc]; + u32 pex_pm_timer; + u32 pex_pme_timeout; + u8 res3[4]; + u32 pex_aspm_req_timer; + u8 res4[0x18]; + u32 pex_ssvid_update; + u8 res5[0x34]; + u32 pex_cfg_ready; + u8 res6[0x24]; + u32 pex_bar_sizel; + u8 res7[4]; + u32 pex_bar_sel; + u8 res8[0x20]; + u32 pex_bar_pf; + u8 res9[0x88]; + u32 pex_pme_to_ack_tor; + u8 res10[0xc]; + u32 pex_ss_intr_mask; + u8 res11[0x25c]; + struct pex_csb_bridge bridge; + u8 res12[0x160]; +} pex83xx_t; + +/* + * SATA + */ +typedef struct sata83xx { + u8 fixme[0x1000]; +} sata83xx_t; + +/* + * eSDHC + */ +typedef struct sdhc83xx { + u8 fixme[0x1000]; +} sdhc83xx_t; + +/* + * SerDes + */ +typedef struct serdes83xx { + u8 fixme[0x100]; +} serdes83xx_t; + +/* + * On Chip ROM + */ +typedef struct rom83xx { + u8 mem[0x10000]; +} rom83xx_t; + +/* + * TDM + */ +typedef struct tdm83xx { + u8 fixme[0x200]; +} tdm83xx_t; + +/* + * TDM DMAC + */ +typedef struct tdmdmac83xx { + u8 fixme[0x2000]; +} tdmdmac83xx_t; + +#if defined(CONFIG_MPC834x) +typedef struct immap { + sysconf83xx_t sysconf; /* System configuration */ + wdt83xx_t wdt; /* Watch Dog Timer (WDT) Registers */ + rtclk83xx_t rtc; /* Real Time Clock Module Registers */ + rtclk83xx_t pit; /* Periodic Interval Timer */ + gtm83xx_t gtm[2]; /* Global Timers Module */ + ipic83xx_t ipic; /* Integrated Programmable Interrupt Controller */ + arbiter83xx_t arbiter; /* System Arbiter Registers */ + reset83xx_t reset; /* Reset Module */ + clk83xx_t clk; /* System Clock Module */ + pmc83xx_t pmc; /* Power Management Control Module */ + gpio83xx_t gpio[2]; /* General purpose I/O module */ + u8 res0[0x200]; + u8 dll_ddr[0x100]; + u8 dll_lbc[0x100]; + u8 res1[0xE00]; + ddr83xx_t ddr; /* DDR Memory Controller Memory */ + fsl_i2c_t i2c[2]; /* I2C Controllers */ + u8 res2[0x1300]; + duart83xx_t duart[2]; /* DUART */ + u8 res3[0x900]; + fsl_lbus_t lbus; /* Local Bus Controller Registers */ + u8 res4[0x1000]; + spi8xxx_t spi; /* Serial Peripheral Interface */ + dma83xx_t dma; /* DMA */ + pciconf83xx_t pci_conf[2]; /* PCI Software Configuration Registers */ + ios83xx_t ios; /* Sequencer */ + pcictrl83xx_t pci_ctrl[2]; /* PCI Controller Control and Status Registers */ + u8 res5[0x19900]; + usb83xx_t usb[2]; + tsec83xx_t tsec[2]; + u8 res6[0xA000]; + security83xx_t security; + u8 res7[0xC0000]; +} immap_t; + +#ifdef CONFIG_HAS_FSL_MPH_USB +#define CONFIG_SYS_MPC83xx_USB_OFFSET 0x22000 /* use the MPH controller */ +#else +#define CONFIG_SYS_MPC83xx_USB_OFFSET 0x23000 /* use the DR controller */ +#endif + +#elif defined(CONFIG_MPC8313) +typedef struct immap { + sysconf83xx_t sysconf; /* System configuration */ + wdt83xx_t wdt; /* Watch Dog Timer (WDT) Registers */ + rtclk83xx_t rtc; /* Real Time Clock Module Registers */ + rtclk83xx_t pit; /* Periodic Interval Timer */ + gtm83xx_t gtm[2]; /* Global Timers Module */ + ipic83xx_t ipic; /* Integrated Programmable Interrupt Controller */ + arbiter83xx_t arbiter; /* System Arbiter Registers */ + reset83xx_t reset; /* Reset Module */ + clk83xx_t clk; /* System Clock Module */ + pmc83xx_t pmc; /* Power Management Control Module */ + gpio83xx_t gpio[1]; /* General purpose I/O module */ + u8 res0[0x1300]; + ddr83xx_t ddr; /* DDR Memory Controller Memory */ + fsl_i2c_t i2c[2]; /* I2C Controllers */ + u8 res1[0x1300]; + duart83xx_t duart[2]; /* DUART */ + u8 res2[0x900]; + fsl_lbus_t lbus; /* Local Bus Controller Registers */ + u8 res3[0x1000]; + spi8xxx_t spi; /* Serial Peripheral Interface */ + dma83xx_t dma; /* DMA */ + pciconf83xx_t pci_conf[1]; /* PCI Software Configuration Registers */ + u8 res4[0x80]; + ios83xx_t ios; /* Sequencer */ + pcictrl83xx_t pci_ctrl[1]; /* PCI Controller Control and Status Registers */ + u8 res5[0x1aa00]; + usb83xx_t usb[1]; + tsec83xx_t tsec[2]; + u8 res6[0xA000]; + security83xx_t security; + u8 res7[0xC0000]; +} immap_t; + +#elif defined(CONFIG_MPC8315) +typedef struct immap { + sysconf83xx_t sysconf; /* System configuration */ + wdt83xx_t wdt; /* Watch Dog Timer (WDT) Registers */ + rtclk83xx_t rtc; /* Real Time Clock Module Registers */ + rtclk83xx_t pit; /* Periodic Interval Timer */ + gtm83xx_t gtm[2]; /* Global Timers Module */ + ipic83xx_t ipic; /* Integrated Programmable Interrupt Controller */ + arbiter83xx_t arbiter; /* System Arbiter Registers */ + reset83xx_t reset; /* Reset Module */ + clk83xx_t clk; /* System Clock Module */ + pmc83xx_t pmc; /* Power Management Control Module */ + gpio83xx_t gpio[1]; /* General purpose I/O module */ + u8 res0[0x1300]; + ddr83xx_t ddr; /* DDR Memory Controller Memory */ + fsl_i2c_t i2c[2]; /* I2C Controllers */ + u8 res1[0x1300]; + duart83xx_t duart[2]; /* DUART */ + u8 res2[0x900]; + fsl_lbus_t lbus; /* Local Bus Controller Registers */ + u8 res3[0x1000]; + spi8xxx_t spi; /* Serial Peripheral Interface */ + dma83xx_t dma; /* DMA */ + pciconf83xx_t pci_conf[1]; /* PCI Software Configuration Registers */ + u8 res4[0x80]; + ios83xx_t ios; /* Sequencer */ + pcictrl83xx_t pci_ctrl[1]; /* PCI Controller Control and Status Registers */ + u8 res5[0xa00]; + pex83xx_t pciexp[2]; /* PCI Express Controller */ + u8 res6[0xb000]; + tdm83xx_t tdm; /* TDM Controller */ + u8 res7[0x1e00]; + sata83xx_t sata[2]; /* SATA Controller */ + u8 res8[0x9000]; + usb83xx_t usb[1]; /* USB DR Controller */ + tsec83xx_t tsec[2]; + u8 res9[0x6000]; + tdmdmac83xx_t tdmdmac; /* TDM DMAC */ + u8 res10[0x2000]; + security83xx_t security; + u8 res11[0xA3000]; + serdes83xx_t serdes[1]; /* SerDes Registers */ + u8 res12[0x1CF00]; +} immap_t; + +#elif defined(CONFIG_MPC837x) +typedef struct immap { + sysconf83xx_t sysconf; /* System configuration */ + wdt83xx_t wdt; /* Watch Dog Timer (WDT) Registers */ + rtclk83xx_t rtc; /* Real Time Clock Module Registers */ + rtclk83xx_t pit; /* Periodic Interval Timer */ + gtm83xx_t gtm[2]; /* Global Timers Module */ + ipic83xx_t ipic; /* Integrated Programmable Interrupt Controller */ + arbiter83xx_t arbiter; /* System Arbiter Registers */ + reset83xx_t reset; /* Reset Module */ + clk83xx_t clk; /* System Clock Module */ + pmc83xx_t pmc; /* Power Management Control Module */ + gpio83xx_t gpio[2]; /* General purpose I/O module */ + u8 res0[0x1200]; + ddr83xx_t ddr; /* DDR Memory Controller Memory */ + fsl_i2c_t i2c[2]; /* I2C Controllers */ + u8 res1[0x1300]; + duart83xx_t duart[2]; /* DUART */ + u8 res2[0x900]; + fsl_lbus_t lbus; /* Local Bus Controller Registers */ + u8 res3[0x1000]; + spi8xxx_t spi; /* Serial Peripheral Interface */ + dma83xx_t dma; /* DMA */ + pciconf83xx_t pci_conf[1]; /* PCI Software Configuration Registers */ + u8 res4[0x80]; + ios83xx_t ios; /* Sequencer */ + pcictrl83xx_t pci_ctrl[1]; /* PCI Controller Control and Status Registers */ + u8 res5[0xa00]; + pex83xx_t pciexp[2]; /* PCI Express Controller */ + u8 res6[0xd000]; + sata83xx_t sata[4]; /* SATA Controller */ + u8 res7[0x7000]; + usb83xx_t usb[1]; /* USB DR Controller */ + tsec83xx_t tsec[2]; + u8 res8[0x8000]; + sdhc83xx_t sdhc; /* SDHC Controller */ + u8 res9[0x1000]; + security83xx_t security; + u8 res10[0xA3000]; + serdes83xx_t serdes[2]; /* SerDes Registers */ + u8 res11[0xCE00]; + rom83xx_t rom; /* On Chip ROM */ +} immap_t; + +#elif defined(CONFIG_MPC8360) +typedef struct immap { + sysconf83xx_t sysconf; /* System configuration */ + wdt83xx_t wdt; /* Watch Dog Timer (WDT) Registers */ + rtclk83xx_t rtc; /* Real Time Clock Module Registers */ + rtclk83xx_t pit; /* Periodic Interval Timer */ + u8 res0[0x200]; + ipic83xx_t ipic; /* Integrated Programmable Interrupt Controller */ + arbiter83xx_t arbiter; /* System Arbiter Registers */ + reset83xx_t reset; /* Reset Module */ + clk83xx_t clk; /* System Clock Module */ + pmc83xx_t pmc; /* Power Management Control Module */ + qepi83xx_t qepi; /* QE Ports Interrupts Registers */ + u8 res1[0x300]; + u8 dll_ddr[0x100]; + u8 dll_lbc[0x100]; + u8 res2[0x200]; + qepio83xx_t qepio; /* QE Parallel I/O ports */ + qesba83xx_t qesba; /* QE Secondary Bus Access Windows */ + u8 res3[0x400]; + ddr83xx_t ddr; /* DDR Memory Controller Memory */ + fsl_i2c_t i2c[2]; /* I2C Controllers */ + u8 res4[0x1300]; + duart83xx_t duart[2]; /* DUART */ + u8 res5[0x900]; + fsl_lbus_t lbus; /* Local Bus Controller Registers */ + u8 res6[0x2000]; + dma83xx_t dma; /* DMA */ + pciconf83xx_t pci_conf[1]; /* PCI Software Configuration Registers */ + u8 res7[128]; + ios83xx_t ios; /* Sequencer (IOS) */ + pcictrl83xx_t pci_ctrl[1]; /* PCI Controller Control and Status Registers */ + u8 res8[0x4A00]; + ddr83xx_t ddr_secondary; /* Secondary DDR Memory Controller Memory Map */ + u8 res9[0x22000]; + security83xx_t security; + u8 res10[0xC0000]; + u8 qe[0x100000]; /* QE block */ +} immap_t; + +#elif defined(CONFIG_MPC832x) +typedef struct immap { + sysconf83xx_t sysconf; /* System configuration */ + wdt83xx_t wdt; /* Watch Dog Timer (WDT) Registers */ + rtclk83xx_t rtc; /* Real Time Clock Module Registers */ + rtclk83xx_t pit; /* Periodic Interval Timer */ + gtm83xx_t gtm[2]; /* Global Timers Module */ + ipic83xx_t ipic; /* Integrated Programmable Interrupt Controller */ + arbiter83xx_t arbiter; /* System Arbiter Registers */ + reset83xx_t reset; /* Reset Module */ + clk83xx_t clk; /* System Clock Module */ + pmc83xx_t pmc; /* Power Management Control Module */ + qepi83xx_t qepi; /* QE Ports Interrupts Registers */ + u8 res0[0x300]; + u8 dll_ddr[0x100]; + u8 dll_lbc[0x100]; + u8 res1[0x200]; + qepio83xx_t qepio; /* QE Parallel I/O ports */ + u8 res2[0x800]; + ddr83xx_t ddr; /* DDR Memory Controller Memory */ + fsl_i2c_t i2c[2]; /* I2C Controllers */ + u8 res3[0x1300]; + duart83xx_t duart[2]; /* DUART */ + u8 res4[0x900]; + fsl_lbus_t lbus; /* Local Bus Controller Registers */ + u8 res5[0x2000]; + dma83xx_t dma; /* DMA */ + pciconf83xx_t pci_conf[1]; /* PCI Software Configuration Registers */ + u8 res6[128]; + ios83xx_t ios; /* Sequencer (IOS) */ + pcictrl83xx_t pci_ctrl[1]; /* PCI Controller Control and Status Registers */ + u8 res7[0x27A00]; + security83xx_t security; + u8 res8[0xC0000]; + u8 qe[0x100000]; /* QE block */ +} immap_t; +#endif + +#define CONFIG_SYS_MPC83xx_DMA_OFFSET (0x8000) +#define CONFIG_SYS_MPC83xx_DMA_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC83xx_DMA_OFFSET) +#define CONFIG_SYS_MPC83xx_ESDHC_OFFSET (0x2e000) +#define CONFIG_SYS_MPC83xx_ESDHC_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC83xx_ESDHC_OFFSET) + +#ifndef CONFIG_SYS_MPC83xx_USB_OFFSET +#define CONFIG_SYS_MPC83xx_USB_OFFSET 0x23000 +#endif +#define CONFIG_SYS_MPC83xx_USB_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC83xx_USB_OFFSET) + +#define CONFIG_SYS_TSEC1_OFFSET 0x24000 +#define CONFIG_SYS_MDIO1_OFFSET 0x24000 + +#define TSEC_BASE_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_TSEC1_OFFSET) +#define MDIO_BASE_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MDIO1_OFFSET) +#endif /* __IMMAP_83xx__ */ diff --git a/arch/ppc/include/asm/immap_85xx.h b/arch/ppc/include/asm/immap_85xx.h new file mode 100644 index 0000000..957ad76 --- /dev/null +++ b/arch/ppc/include/asm/immap_85xx.h @@ -0,0 +1,2106 @@ +/* + * MPC85xx Internal Memory Map + * + * Copyright 2007-2009 Freescale Semiconductor, Inc. + * + * Copyright(c) 2002,2003 Motorola Inc. + * Xianghua Xiao (x.xiao@motorola.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef __IMMAP_85xx__ +#define __IMMAP_85xx__ + +#include <asm/types.h> +#include <asm/fsl_dma.h> +#include <asm/fsl_i2c.h> +#include <asm/fsl_lbc.h> + +typedef struct ccsr_local { + u32 ccsrbarh; /* CCSR Base Addr High */ + u32 ccsrbarl; /* CCSR Base Addr Low */ + u32 ccsrar; /* CCSR Attr */ +#define CCSRAR_C 0x80000000 /* Commit */ + u8 res1[4]; + u32 altcbarh; /* Alternate Configuration Base Addr High */ + u32 altcbarl; /* Alternate Configuration Base Addr Low */ + u32 altcar; /* Alternate Configuration Attr */ + u8 res2[4]; + u32 bstrh; /* Boot space translation high */ + u32 bstrl; /* Boot space translation Low */ + u32 bstrar; /* Boot space translation attributes */ + u8 res3[0xbd4]; + struct { + u32 lawbarh; /* LAWn base addr high */ + u32 lawbarl; /* LAWn base addr low */ + u32 lawar; /* LAWn attributes */ + u8 res4[4]; + } law[32]; + u8 res35[0x204]; +} ccsr_local_t; + +/* Local-Access Registers & ECM Registers */ +typedef struct ccsr_local_ecm { + u32 ccsrbar; /* CCSR Base Addr */ + u8 res1[4]; + u32 altcbar; /* Alternate Configuration Base Addr */ + u8 res2[4]; + u32 altcar; /* Alternate Configuration Attr */ + u8 res3[12]; + u32 bptr; /* Boot Page Translation */ + u8 res4[3044]; + u32 lawbar0; /* Local Access Window 0 Base Addr */ + u8 res5[4]; + u32 lawar0; /* Local Access Window 0 Attrs */ + u8 res6[20]; + u32 lawbar1; /* Local Access Window 1 Base Addr */ + u8 res7[4]; + u32 lawar1; /* Local Access Window 1 Attrs */ + u8 res8[20]; + u32 lawbar2; /* Local Access Window 2 Base Addr */ + u8 res9[4]; + u32 lawar2; /* Local Access Window 2 Attrs */ + u8 res10[20]; + u32 lawbar3; /* Local Access Window 3 Base Addr */ + u8 res11[4]; + u32 lawar3; /* Local Access Window 3 Attrs */ + u8 res12[20]; + u32 lawbar4; /* Local Access Window 4 Base Addr */ + u8 res13[4]; + u32 lawar4; /* Local Access Window 4 Attrs */ + u8 res14[20]; + u32 lawbar5; /* Local Access Window 5 Base Addr */ + u8 res15[4]; + u32 lawar5; /* Local Access Window 5 Attrs */ + u8 res16[20]; + u32 lawbar6; /* Local Access Window 6 Base Addr */ + u8 res17[4]; + u32 lawar6; /* Local Access Window 6 Attrs */ + u8 res18[20]; + u32 lawbar7; /* Local Access Window 7 Base Addr */ + u8 res19[4]; + u32 lawar7; /* Local Access Window 7 Attrs */ + u8 res19_8a[20]; + u32 lawbar8; /* Local Access Window 8 Base Addr */ + u8 res19_8b[4]; + u32 lawar8; /* Local Access Window 8 Attrs */ + u8 res19_9a[20]; + u32 lawbar9; /* Local Access Window 9 Base Addr */ + u8 res19_9b[4]; + u32 lawar9; /* Local Access Window 9 Attrs */ + u8 res19_10a[20]; + u32 lawbar10; /* Local Access Window 10 Base Addr */ + u8 res19_10b[4]; + u32 lawar10; /* Local Access Window 10 Attrs */ + u8 res19_11a[20]; + u32 lawbar11; /* Local Access Window 11 Base Addr */ + u8 res19_11b[4]; + u32 lawar11; /* Local Access Window 11 Attrs */ + u8 res20[652]; + u32 eebacr; /* ECM CCB Addr Configuration */ + u8 res21[12]; + u32 eebpcr; /* ECM CCB Port Configuration */ + u8 res22[3564]; + u32 eedr; /* ECM Error Detect */ + u8 res23[4]; + u32 eeer; /* ECM Error Enable */ + u32 eeatr; /* ECM Error Attrs Capture */ + u32 eeadr; /* ECM Error Addr Capture */ + u8 res24[492]; +} ccsr_local_ecm_t; + +/* DDR memory controller registers */ +typedef struct ccsr_ddr { + u32 cs0_bnds; /* Chip Select 0 Memory Bounds */ + u8 res1[4]; + u32 cs1_bnds; /* Chip Select 1 Memory Bounds */ + u8 res2[4]; + u32 cs2_bnds; /* Chip Select 2 Memory Bounds */ + u8 res3[4]; + u32 cs3_bnds; /* Chip Select 3 Memory Bounds */ + u8 res4[100]; + u32 cs0_config; /* Chip Select Configuration */ + u32 cs1_config; /* Chip Select Configuration */ + u32 cs2_config; /* Chip Select Configuration */ + u32 cs3_config; /* Chip Select Configuration */ + u8 res4a[48]; + u32 cs0_config_2; /* Chip Select Configuration 2 */ + u32 cs1_config_2; /* Chip Select Configuration 2 */ + u32 cs2_config_2; /* Chip Select Configuration 2 */ + u32 cs3_config_2; /* Chip Select Configuration 2 */ + u8 res5[48]; + u32 timing_cfg_3; /* SDRAM Timing Configuration 3 */ + u32 timing_cfg_0; /* SDRAM Timing Configuration 0 */ + u32 timing_cfg_1; /* SDRAM Timing Configuration 1 */ + u32 timing_cfg_2; /* SDRAM Timing Configuration 2 */ + u32 sdram_cfg; /* SDRAM Control Configuration */ + u32 sdram_cfg_2; /* SDRAM Control Configuration 2 */ + u32 sdram_mode; /* SDRAM Mode Configuration */ + u32 sdram_mode_2; /* SDRAM Mode Configuration 2 */ + u32 sdram_md_cntl; /* SDRAM Mode Control */ + u32 sdram_interval; /* SDRAM Interval Configuration */ + u32 sdram_data_init; /* SDRAM Data initialization */ + u8 res6[4]; + u32 sdram_clk_cntl; /* SDRAM Clock Control */ + u8 res7[20]; + u32 init_addr; /* training init addr */ + u32 init_ext_addr; /* training init extended addr */ + u8 res8_1[16]; + u32 timing_cfg_4; /* SDRAM Timing Configuration 4 */ + u32 timing_cfg_5; /* SDRAM Timing Configuration 5 */ + u8 reg8_1a[8]; + u32 ddr_zq_cntl; /* ZQ calibration control*/ + u32 ddr_wrlvl_cntl; /* write leveling control*/ + u8 reg8_1aa[4]; + u32 ddr_sr_cntr; /* self refresh counter */ + u32 ddr_sdram_rcw_1; /* Control Words 1 */ + u32 ddr_sdram_rcw_2; /* Control Words 2 */ + u8 res8_1b[2456]; + u32 ddr_dsr1; /* Debug Status 1 */ + u32 ddr_dsr2; /* Debug Status 2 */ + u32 ddr_cdr1; /* Control Driver 1 */ + u32 ddr_cdr2; /* Control Driver 2 */ + u8 res8_1c[200]; + u32 ip_rev1; /* IP Block Revision 1 */ + u32 ip_rev2; /* IP Block Revision 2 */ + u8 res8_2[512]; + u32 data_err_inject_hi; /* Data Path Err Injection Mask High */ + u32 data_err_inject_lo; /* Data Path Err Injection Mask Low */ + u32 ecc_err_inject; /* Data Path Err Injection Mask ECC */ + u8 res9[20]; + u32 capture_data_hi; /* Data Path Read Capture High */ + u32 capture_data_lo; /* Data Path Read Capture Low */ + u32 capture_ecc; /* Data Path Read Capture ECC */ + u8 res10[20]; + u32 err_detect; /* Error Detect */ + u32 err_disable; /* Error Disable */ + u32 err_int_en; + u32 capture_attributes; /* Error Attrs Capture */ + u32 capture_address; /* Error Addr Capture */ + u32 capture_ext_address; /* Error Extended Addr Capture */ + u32 err_sbe; /* Single-Bit ECC Error Management */ + u8 res11[164]; + u32 debug_1; + u32 debug_2; + u32 debug_3; + u32 debug_4; + u32 debug_5; + u32 debug_6; + u32 debug_7; + u32 debug_8; + u32 debug_9; + u32 debug_10; + u32 debug_11; + u32 debug_12; + u32 debug_13; + u32 debug_14; + u32 debug_15; + u32 debug_16; + u32 debug_17; + u32 debug_18; + u8 res12[184]; +} ccsr_ddr_t; + +/* I2C Registers */ +typedef struct ccsr_i2c { + struct fsl_i2c i2c[1]; + u8 res[4096 - 1 * sizeof(struct fsl_i2c)]; +} ccsr_i2c_t; + +#if defined(CONFIG_MPC8540) \ + || defined(CONFIG_MPC8541) \ + || defined(CONFIG_MPC8548) \ + || defined(CONFIG_MPC8555) +/* DUART Registers */ +typedef struct ccsr_duart { + u8 res1[1280]; +/* URBR1, UTHR1, UDLB1 with the same addr */ + u8 urbr1_uthr1_udlb1; +/* UIER1, UDMB1 with the same addr01 */ + u8 uier1_udmb1; +/* UIIR1, UFCR1, UAFR1 with the same addr */ + u8 uiir1_ufcr1_uafr1; + u8 ulcr1; /* UART1 Line Control */ + u8 umcr1; /* UART1 Modem Control */ + u8 ulsr1; /* UART1 Line Status */ + u8 umsr1; /* UART1 Modem Status */ + u8 uscr1; /* UART1 Scratch */ + u8 res2[8]; + u8 udsr1; /* UART1 DMA Status */ + u8 res3[239]; +/* URBR2, UTHR2, UDLB2 with the same addr */ + u8 urbr2_uthr2_udlb2; +/* UIER2, UDMB2 with the same addr */ + u8 uier2_udmb2; +/* UIIR2, UFCR2, UAFR2 with the same addr */ + u8 uiir2_ufcr2_uafr2; + u8 ulcr2; /* UART2 Line Control */ + u8 umcr2; /* UART2 Modem Control */ + u8 ulsr2; /* UART2 Line Status */ + u8 umsr2; /* UART2 Modem Status */ + u8 uscr2; /* UART2 Scratch */ + u8 res4[8]; + u8 udsr2; /* UART2 DMA Status */ + u8 res5[2543]; +} ccsr_duart_t; +#else /* MPC8560 uses UART on its CPM */ +typedef struct ccsr_duart { + u8 res[4096]; +} ccsr_duart_t; +#endif + +/* Local Bus Controller Registers */ +typedef struct ccsr_lbc { + u32 br0; /* LBC Base 0 */ + u32 or0; /* LBC Options 0 */ + u32 br1; /* LBC Base 1 */ + u32 or1; /* LBC Options 1 */ + u32 br2; /* LBC Base 2 */ + u32 or2; /* LBC Options 2 */ + u32 br3; /* LBC Base 3 */ + u32 or3; /* LBC Options 3 */ + u32 br4; /* LBC Base 4 */ + u32 or4; /* LBC Options 4 */ + u32 br5; /* LBC Base 5 */ + u32 or5; /* LBC Options 5 */ + u32 br6; /* LBC Base 6 */ + u32 or6; /* LBC Options 6 */ + u32 br7; /* LBC Base 7 */ + u32 or7; /* LBC Options 7 */ + u8 res1[40]; + u32 mar; /* LBC UPM Addr */ + u8 res2[4]; + u32 mamr; /* LBC UPMA Mode */ + u32 mbmr; /* LBC UPMB Mode */ + u32 mcmr; /* LBC UPMC Mode */ + u8 res3[8]; + u32 mrtpr; /* LBC Memory Refresh Timer Prescaler */ + u32 mdr; /* LBC UPM Data */ + u8 res4[8]; + u32 lsdmr; /* LBC SDRAM Mode */ + u8 res5[8]; + u32 lurt; /* LBC UPM Refresh Timer */ + u32 lsrt; /* LBC SDRAM Refresh Timer */ + u8 res6[8]; + u32 ltesr; /* LBC Transfer Error Status */ + u32 ltedr; /* LBC Transfer Error Disable */ + u32 lteir; /* LBC Transfer Error IRQ */ + u32 lteatr; /* LBC Transfer Error Attrs */ + u32 ltear; /* LBC Transfer Error Addr */ + u8 res7[12]; + u32 lbcr; /* LBC Configuration */ + u32 lcrr; /* LBC Clock Ratio */ + u8 res8[3880]; +} ccsr_lbc_t; + +/* eSPI Registers */ +typedef struct ccsr_espi { + u32 mode; /* eSPI mode */ + u32 event; /* eSPI event */ + u32 mask; /* eSPI mask */ + u32 com; /* eSPI command */ + u32 tx; /* eSPI transmit FIFO access */ + u32 rx; /* eSPI receive FIFO access */ + u8 res1[8]; /* reserved */ + u32 csmode[4]; /* 0x2c: sSPI CS0/1/2/3 mode */ + u8 res2[4048]; /* fill up to 0x1000 */ +} ccsr_espi_t; + +/* PCI Registers */ +typedef struct ccsr_pcix { + u32 cfg_addr; /* PCIX Configuration Addr */ + u32 cfg_data; /* PCIX Configuration Data */ + u32 int_ack; /* PCIX IRQ Acknowledge */ + u8 res1[3060]; + u32 potar0; /* PCIX Outbound Transaction Addr 0 */ + u32 potear0; /* PCIX Outbound Translation Extended Addr 0 */ + u32 powbar0; /* PCIX Outbound Window Base Addr 0 */ + u32 powbear0; /* PCIX Outbound Window Base Extended Addr 0 */ + u32 powar0; /* PCIX Outbound Window Attrs 0 */ + u8 res2[12]; + u32 potar1; /* PCIX Outbound Transaction Addr 1 */ + u32 potear1; /* PCIX Outbound Translation Extended Addr 1 */ + u32 powbar1; /* PCIX Outbound Window Base Addr 1 */ + u32 powbear1; /* PCIX Outbound Window Base Extended Addr 1 */ + u32 powar1; /* PCIX Outbound Window Attrs 1 */ + u8 res3[12]; + u32 potar2; /* PCIX Outbound Transaction Addr 2 */ + u32 potear2; /* PCIX Outbound Translation Extended Addr 2 */ + u32 powbar2; /* PCIX Outbound Window Base Addr 2 */ + u32 powbear2; /* PCIX Outbound Window Base Extended Addr 2 */ + u32 powar2; /* PCIX Outbound Window Attrs 2 */ + u8 res4[12]; + u32 potar3; /* PCIX Outbound Transaction Addr 3 */ + u32 potear3; /* PCIX Outbound Translation Extended Addr 3 */ + u32 powbar3; /* PCIX Outbound Window Base Addr 3 */ + u32 powbear3; /* PCIX Outbound Window Base Extended Addr 3 */ + u32 powar3; /* PCIX Outbound Window Attrs 3 */ + u8 res5[12]; + u32 potar4; /* PCIX Outbound Transaction Addr 4 */ + u32 potear4; /* PCIX Outbound Translation Extended Addr 4 */ + u32 powbar4; /* PCIX Outbound Window Base Addr 4 */ + u32 powbear4; /* PCIX Outbound Window Base Extended Addr 4 */ + u32 powar4; /* PCIX Outbound Window Attrs 4 */ + u8 res6[268]; + u32 pitar3; /* PCIX Inbound Translation Addr 3 */ + u32 pitear3; /* PCIX Inbound Translation Extended Addr 3 */ + u32 piwbar3; /* PCIX Inbound Window Base Addr 3 */ + u32 piwbear3; /* PCIX Inbound Window Base Extended Addr 3 */ + u32 piwar3; /* PCIX Inbound Window Attrs 3 */ + u8 res7[12]; + u32 pitar2; /* PCIX Inbound Translation Addr 2 */ + u32 pitear2; /* PCIX Inbound Translation Extended Addr 2 */ + u32 piwbar2; /* PCIX Inbound Window Base Addr 2 */ + u32 piwbear2; /* PCIX Inbound Window Base Extended Addr 2 */ + u32 piwar2; /* PCIX Inbound Window Attrs 2 */ + u8 res8[12]; + u32 pitar1; /* PCIX Inbound Translation Addr 1 */ + u32 pitear1; /* PCIX Inbound Translation Extended Addr 1 */ + u32 piwbar1; /* PCIX Inbound Window Base Addr 1 */ + u8 res9[4]; + u32 piwar1; /* PCIX Inbound Window Attrs 1 */ + u8 res10[12]; + u32 pedr; /* PCIX Error Detect */ + u32 pecdr; /* PCIX Error Capture Disable */ + u32 peer; /* PCIX Error Enable */ + u32 peattrcr; /* PCIX Error Attrs Capture */ + u32 peaddrcr; /* PCIX Error Addr Capture */ + u32 peextaddrcr; /* PCIX Error Extended Addr Capture */ + u32 pedlcr; /* PCIX Error Data Low Capture */ + u32 pedhcr; /* PCIX Error Error Data High Capture */ + u32 gas_timr; /* PCIX Gasket Timer */ + u8 res11[476]; +} ccsr_pcix_t; + +#define PCIX_COMMAND 0x62 +#define POWAR_EN 0x80000000 +#define POWAR_IO_READ 0x00080000 +#define POWAR_MEM_READ 0x00040000 +#define POWAR_IO_WRITE 0x00008000 +#define POWAR_MEM_WRITE 0x00004000 +#define POWAR_MEM_512M 0x0000001c +#define POWAR_IO_1M 0x00000013 + +#define PIWAR_EN 0x80000000 +#define PIWAR_PF 0x20000000 +#define PIWAR_LOCAL 0x00f00000 +#define PIWAR_READ_SNOOP 0x00050000 +#define PIWAR_WRITE_SNOOP 0x00005000 +#define PIWAR_MEM_2G 0x0000001e + +typedef struct ccsr_gpio { + u32 gpdir; + u32 gpodr; + u32 gpdat; + u32 gpier; + u32 gpimr; + u32 gpicr; +} ccsr_gpio_t; + +/* L2 Cache Registers */ +typedef struct ccsr_l2cache { + u32 l2ctl; /* L2 configuration 0 */ + u8 res1[12]; + u32 l2cewar0; /* L2 cache external write addr 0 */ + u8 res2[4]; + u32 l2cewcr0; /* L2 cache external write control 0 */ + u8 res3[4]; + u32 l2cewar1; /* L2 cache external write addr 1 */ + u8 res4[4]; + u32 l2cewcr1; /* L2 cache external write control 1 */ + u8 res5[4]; + u32 l2cewar2; /* L2 cache external write addr 2 */ + u8 res6[4]; + u32 l2cewcr2; /* L2 cache external write control 2 */ + u8 res7[4]; + u32 l2cewar3; /* L2 cache external write addr 3 */ + u8 res8[4]; + u32 l2cewcr3; /* L2 cache external write control 3 */ + u8 res9[180]; + u32 l2srbar0; /* L2 memory-mapped SRAM base addr 0 */ + u8 res10[4]; + u32 l2srbar1; /* L2 memory-mapped SRAM base addr 1 */ + u8 res11[3316]; + u32 l2errinjhi; /* L2 error injection mask high */ + u32 l2errinjlo; /* L2 error injection mask low */ + u32 l2errinjctl; /* L2 error injection tag/ECC control */ + u8 res12[20]; + u32 l2captdatahi; /* L2 error data high capture */ + u32 l2captdatalo; /* L2 error data low capture */ + u32 l2captecc; /* L2 error ECC capture */ + u8 res13[20]; + u32 l2errdet; /* L2 error detect */ + u32 l2errdis; /* L2 error disable */ + u32 l2errinten; /* L2 error interrupt enable */ + u32 l2errattr; /* L2 error attributes capture */ + u32 l2erraddr; /* L2 error addr capture */ + u8 res14[4]; + u32 l2errctl; /* L2 error control */ + u8 res15[420]; +} ccsr_l2cache_t; + +#define MPC85xx_L2CTL_L2E 0x80000000 +#define MPC85xx_L2CTL_L2SRAM_ENTIRE 0x00010000 +#define MPC85xx_L2ERRDIS_MBECC 0x00000008 +#define MPC85xx_L2ERRDIS_SBECC 0x00000004 + +/* DMA Registers */ +typedef struct ccsr_dma { + u8 res1[256]; + struct fsl_dma dma[4]; + u32 dgsr; /* DMA General Status */ + u8 res2[11516]; +} ccsr_dma_t; + +/* tsec */ +typedef struct ccsr_tsec { + u8 res1[16]; + u32 ievent; /* IRQ Event */ + u32 imask; /* IRQ Mask */ + u32 edis; /* Error Disabled */ + u8 res2[4]; + u32 ecntrl; /* Ethernet Control */ + u32 minflr; /* Minimum Frame Len */ + u32 ptv; /* Pause Time Value */ + u32 dmactrl; /* DMA Control */ + u32 tbipa; /* TBI PHY Addr */ + u8 res3[88]; + u32 fifo_tx_thr; /* FIFO transmit threshold */ + u8 res4[8]; + u32 fifo_tx_starve; /* FIFO transmit starve */ + u32 fifo_tx_starve_shutoff; /* FIFO transmit starve shutoff */ + u8 res5[96]; + u32 tctrl; /* TX Control */ + u32 tstat; /* TX Status */ + u8 res6[4]; + u32 tbdlen; /* TX Buffer Desc Data Len */ + u8 res7[16]; + u32 ctbptrh; /* Current TX Buffer Desc Ptr High */ + u32 ctbptr; /* Current TX Buffer Desc Ptr */ + u8 res8[88]; + u32 tbptrh; /* TX Buffer Desc Ptr High */ + u32 tbptr; /* TX Buffer Desc Ptr Low */ + u8 res9[120]; + u32 tbaseh; /* TX Desc Base Addr High */ + u32 tbase; /* TX Desc Base Addr */ + u8 res10[168]; + u32 ostbd; /* Out-of-Sequence(OOS) TX Buffer Desc */ + u32 ostbdp; /* OOS TX Data Buffer Ptr */ + u32 os32tbdp; /* OOS 32 Bytes TX Data Buffer Ptr Low */ + u32 os32iptrh; /* OOS 32 Bytes TX Insert Ptr High */ + u32 os32iptrl; /* OOS 32 Bytes TX Insert Ptr Low */ + u32 os32tbdr; /* OOS 32 Bytes TX Reserved */ + u32 os32iil; /* OOS 32 Bytes TX Insert Idx/Len */ + u8 res11[52]; + u32 rctrl; /* RX Control */ + u32 rstat; /* RX Status */ + u8 res12[4]; + u32 rbdlen; /* RxBD Data Len */ + u8 res13[16]; + u32 crbptrh; /* Current RX Buffer Desc Ptr High */ + u32 crbptr; /* Current RX Buffer Desc Ptr */ + u8 res14[24]; + u32 mrblr; /* Maximum RX Buffer Len */ + u32 mrblr2r3; /* Maximum RX Buffer Len R2R3 */ + u8 res15[56]; + u32 rbptrh; /* RX Buffer Desc Ptr High 0 */ + u32 rbptr; /* RX Buffer Desc Ptr */ + u32 rbptrh1; /* RX Buffer Desc Ptr High 1 */ + u32 rbptrl1; /* RX Buffer Desc Ptr Low 1 */ + u32 rbptrh2; /* RX Buffer Desc Ptr High 2 */ + u32 rbptrl2; /* RX Buffer Desc Ptr Low 2 */ + u32 rbptrh3; /* RX Buffer Desc Ptr High 3 */ + u32 rbptrl3; /* RX Buffer Desc Ptr Low 3 */ + u8 res16[96]; + u32 rbaseh; /* RX Desc Base Addr High 0 */ + u32 rbase; /* RX Desc Base Addr */ + u32 rbaseh1; /* RX Desc Base Addr High 1 */ + u32 rbasel1; /* RX Desc Base Addr Low 1 */ + u32 rbaseh2; /* RX Desc Base Addr High 2 */ + u32 rbasel2; /* RX Desc Base Addr Low 2 */ + u32 rbaseh3; /* RX Desc Base Addr High 3 */ + u32 rbasel3; /* RX Desc Base Addr Low 3 */ + u8 res17[224]; + u32 maccfg1; /* MAC Configuration 1 */ + u32 maccfg2; /* MAC Configuration 2 */ + u32 ipgifg; /* Inter Packet Gap/Inter Frame Gap */ + u32 hafdup; /* Half Duplex */ + u32 maxfrm; /* Maximum Frame Len */ + u8 res18[12]; + u32 miimcfg; /* MII Management Configuration */ + u32 miimcom; /* MII Management Cmd */ + u32 miimadd; /* MII Management Addr */ + u32 miimcon; /* MII Management Control */ + u32 miimstat; /* MII Management Status */ + u32 miimind; /* MII Management Indicator */ + u8 res19[4]; + u32 ifstat; /* Interface Status */ + u32 macstnaddr1; /* Station Addr Part 1 */ + u32 macstnaddr2; /* Station Addr Part 2 */ + u8 res20[312]; + u32 tr64; /* TX & RX 64-byte Frame Counter */ + u32 tr127; /* TX & RX 65-127 byte Frame Counter */ + u32 tr255; /* TX & RX 128-255 byte Frame Counter */ + u32 tr511; /* TX & RX 256-511 byte Frame Counter */ + u32 tr1k; /* TX & RX 512-1023 byte Frame Counter */ + u32 trmax; /* TX & RX 1024-1518 byte Frame Counter */ + u32 trmgv; /* TX & RX 1519-1522 byte Good VLAN Frame */ + u32 rbyt; /* RX Byte Counter */ + u32 rpkt; /* RX Packet Counter */ + u32 rfcs; /* RX FCS Error Counter */ + u32 rmca; /* RX Multicast Packet Counter */ + u32 rbca; /* RX Broadcast Packet Counter */ + u32 rxcf; /* RX Control Frame Packet Counter */ + u32 rxpf; /* RX Pause Frame Packet Counter */ + u32 rxuo; /* RX Unknown OP Code Counter */ + u32 raln; /* RX Alignment Error Counter */ + u32 rflr; /* RX Frame Len Error Counter */ + u32 rcde; /* RX Code Error Counter */ + u32 rcse; /* RX Carrier Sense Error Counter */ + u32 rund; /* RX Undersize Packet Counter */ + u32 rovr; /* RX Oversize Packet Counter */ + u32 rfrg; /* RX Fragments Counter */ + u32 rjbr; /* RX Jabber Counter */ + u32 rdrp; /* RX Drop Counter */ + u32 tbyt; /* TX Byte Counter Counter */ + u32 tpkt; /* TX Packet Counter */ + u32 tmca; /* TX Multicast Packet Counter */ + u32 tbca; /* TX Broadcast Packet Counter */ + u32 txpf; /* TX Pause Control Frame Counter */ + u32 tdfr; /* TX Deferral Packet Counter */ + u32 tedf; /* TX Excessive Deferral Packet Counter */ + u32 tscl; /* TX Single Collision Packet Counter */ + u32 tmcl; /* TX Multiple Collision Packet Counter */ + u32 tlcl; /* TX Late Collision Packet Counter */ + u32 txcl; /* TX Excessive Collision Packet Counter */ + u32 tncl; /* TX Total Collision Counter */ + u8 res21[4]; + u32 tdrp; /* TX Drop Frame Counter */ + u32 tjbr; /* TX Jabber Frame Counter */ + u32 tfcs; /* TX FCS Error Counter */ + u32 txcf; /* TX Control Frame Counter */ + u32 tovr; /* TX Oversize Frame Counter */ + u32 tund; /* TX Undersize Frame Counter */ + u32 tfrg; /* TX Fragments Frame Counter */ + u32 car1; /* Carry One */ + u32 car2; /* Carry Two */ + u32 cam1; /* Carry Mask One */ + u32 cam2; /* Carry Mask Two */ + u8 res22[192]; + u32 iaddr0; /* Indivdual addr 0 */ + u32 iaddr1; /* Indivdual addr 1 */ + u32 iaddr2; /* Indivdual addr 2 */ + u32 iaddr3; /* Indivdual addr 3 */ + u32 iaddr4; /* Indivdual addr 4 */ + u32 iaddr5; /* Indivdual addr 5 */ + u32 iaddr6; /* Indivdual addr 6 */ + u32 iaddr7; /* Indivdual addr 7 */ + u8 res23[96]; + u32 gaddr0; /* Global addr 0 */ + u32 gaddr1; /* Global addr 1 */ + u32 gaddr2; /* Global addr 2 */ + u32 gaddr3; /* Global addr 3 */ + u32 gaddr4; /* Global addr 4 */ + u32 gaddr5; /* Global addr 5 */ + u32 gaddr6; /* Global addr 6 */ + u32 gaddr7; /* Global addr 7 */ + u8 res24[96]; + u32 pmd0; /* Pattern Match Data */ + u8 res25[4]; + u32 pmask0; /* Pattern Mask */ + u8 res26[4]; + u32 pcntrl0; /* Pattern Match Control */ + u8 res27[4]; + u32 pattrb0; /* Pattern Match Attrs */ + u32 pattrbeli0; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd1; /* Pattern Match Data */ + u8 res28[4]; + u32 pmask1; /* Pattern Mask */ + u8 res29[4]; + u32 pcntrl1; /* Pattern Match Control */ + u8 res30[4]; + u32 pattrb1; /* Pattern Match Attrs */ + u32 pattrbeli1; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd2; /* Pattern Match Data */ + u8 res31[4]; + u32 pmask2; /* Pattern Mask */ + u8 res32[4]; + u32 pcntrl2; /* Pattern Match Control */ + u8 res33[4]; + u32 pattrb2; /* Pattern Match Attrs */ + u32 pattrbeli2; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd3; /* Pattern Match Data */ + u8 res34[4]; + u32 pmask3; /* Pattern Mask */ + u8 res35[4]; + u32 pcntrl3; /* Pattern Match Control */ + u8 res36[4]; + u32 pattrb3; /* Pattern Match Attrs */ + u32 pattrbeli3; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd4; /* Pattern Match Data */ + u8 res37[4]; + u32 pmask4; /* Pattern Mask */ + u8 res38[4]; + u32 pcntrl4; /* Pattern Match Control */ + u8 res39[4]; + u32 pattrb4; /* Pattern Match Attrs */ + u32 pattrbeli4; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd5; /* Pattern Match Data */ + u8 res40[4]; + u32 pmask5; /* Pattern Mask */ + u8 res41[4]; + u32 pcntrl5; /* Pattern Match Control */ + u8 res42[4]; + u32 pattrb5; /* Pattern Match Attrs */ + u32 pattrbeli5; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd6; /* Pattern Match Data */ + u8 res43[4]; + u32 pmask6; /* Pattern Mask */ + u8 res44[4]; + u32 pcntrl6; /* Pattern Match Control */ + u8 res45[4]; + u32 pattrb6; /* Pattern Match Attrs */ + u32 pattrbeli6; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd7; /* Pattern Match Data */ + u8 res46[4]; + u32 pmask7; /* Pattern Mask */ + u8 res47[4]; + u32 pcntrl7; /* Pattern Match Control */ + u8 res48[4]; + u32 pattrb7; /* Pattern Match Attrs */ + u32 pattrbeli7; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd8; /* Pattern Match Data */ + u8 res49[4]; + u32 pmask8; /* Pattern Mask */ + u8 res50[4]; + u32 pcntrl8; /* Pattern Match Control */ + u8 res51[4]; + u32 pattrb8; /* Pattern Match Attrs */ + u32 pattrbeli8; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd9; /* Pattern Match Data */ + u8 res52[4]; + u32 pmask9; /* Pattern Mask */ + u8 res53[4]; + u32 pcntrl9; /* Pattern Match Control */ + u8 res54[4]; + u32 pattrb9; /* Pattern Match Attrs */ + u32 pattrbeli9; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd10; /* Pattern Match Data */ + u8 res55[4]; + u32 pmask10; /* Pattern Mask */ + u8 res56[4]; + u32 pcntrl10; /* Pattern Match Control */ + u8 res57[4]; + u32 pattrb10; /* Pattern Match Attrs */ + u32 pattrbeli10; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd11; /* Pattern Match Data */ + u8 res58[4]; + u32 pmask11; /* Pattern Mask */ + u8 res59[4]; + u32 pcntrl11; /* Pattern Match Control */ + u8 res60[4]; + u32 pattrb11; /* Pattern Match Attrs */ + u32 pattrbeli11; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd12; /* Pattern Match Data */ + u8 res61[4]; + u32 pmask12; /* Pattern Mask */ + u8 res62[4]; + u32 pcntrl12; /* Pattern Match Control */ + u8 res63[4]; + u32 pattrb12; /* Pattern Match Attrs */ + u32 pattrbeli12; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd13; /* Pattern Match Data */ + u8 res64[4]; + u32 pmask13; /* Pattern Mask */ + u8 res65[4]; + u32 pcntrl13; /* Pattern Match Control */ + u8 res66[4]; + u32 pattrb13; /* Pattern Match Attrs */ + u32 pattrbeli13; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd14; /* Pattern Match Data */ + u8 res67[4]; + u32 pmask14; /* Pattern Mask */ + u8 res68[4]; + u32 pcntrl14; /* Pattern Match Control */ + u8 res69[4]; + u32 pattrb14; /* Pattern Match Attrs */ + u32 pattrbeli14; /* Pattern Match Attrs Extract Len & Idx */ + u32 pmd15; /* Pattern Match Data */ + u8 res70[4]; + u32 pmask15; /* Pattern Mask */ + u8 res71[4]; + u32 pcntrl15; /* Pattern Match Control */ + u8 res72[4]; + u32 pattrb15; /* Pattern Match Attrs */ + u32 pattrbeli15; /* Pattern Match Attrs Extract Len & Idx */ + u8 res73[248]; + u32 attr; /* Attrs */ + u32 attreli; /* Attrs Extract Len & Idx */ + u8 res74[1024]; +} ccsr_tsec_t; + +/* PIC Registers */ +typedef struct ccsr_pic { + u8 res1[64]; + u32 ipidr0; /* Interprocessor IRQ Dispatch 0 */ + u8 res2[12]; + u32 ipidr1; /* Interprocessor IRQ Dispatch 1 */ + u8 res3[12]; + u32 ipidr2; /* Interprocessor IRQ Dispatch 2 */ + u8 res4[12]; + u32 ipidr3; /* Interprocessor IRQ Dispatch 3 */ + u8 res5[12]; + u32 ctpr; /* Current Task Priority */ + u8 res6[12]; + u32 whoami; /* Who Am I */ + u8 res7[12]; + u32 iack; /* IRQ Acknowledge */ + u8 res8[12]; + u32 eoi; /* End Of IRQ */ + u8 res9[3916]; + u32 frr; /* Feature Reporting */ + u8 res10[28]; + u32 gcr; /* Global Configuration */ +#define MPC85xx_PICGCR_RST 0x80000000 +#define MPC85xx_PICGCR_M 0x20000000 + u8 res11[92]; + u32 vir; /* Vendor Identification */ + u8 res12[12]; + u32 pir; /* Processor Initialization */ + u8 res13[12]; + u32 ipivpr0; /* IPI Vector/Priority 0 */ + u8 res14[12]; + u32 ipivpr1; /* IPI Vector/Priority 1 */ + u8 res15[12]; + u32 ipivpr2; /* IPI Vector/Priority 2 */ + u8 res16[12]; + u32 ipivpr3; /* IPI Vector/Priority 3 */ + u8 res17[12]; + u32 svr; /* Spurious Vector */ + u8 res18[12]; + u32 tfrr; /* Timer Frequency Reporting */ + u8 res19[12]; + u32 gtccr0; /* Global Timer Current Count 0 */ + u8 res20[12]; + u32 gtbcr0; /* Global Timer Base Count 0 */ + u8 res21[12]; + u32 gtvpr0; /* Global Timer Vector/Priority 0 */ + u8 res22[12]; + u32 gtdr0; /* Global Timer Destination 0 */ + u8 res23[12]; + u32 gtccr1; /* Global Timer Current Count 1 */ + u8 res24[12]; + u32 gtbcr1; /* Global Timer Base Count 1 */ + u8 res25[12]; + u32 gtvpr1; /* Global Timer Vector/Priority 1 */ + u8 res26[12]; + u32 gtdr1; /* Global Timer Destination 1 */ + u8 res27[12]; + u32 gtccr2; /* Global Timer Current Count 2 */ + u8 res28[12]; + u32 gtbcr2; /* Global Timer Base Count 2 */ + u8 res29[12]; + u32 gtvpr2; /* Global Timer Vector/Priority 2 */ + u8 res30[12]; + u32 gtdr2; /* Global Timer Destination 2 */ + u8 res31[12]; + u32 gtccr3; /* Global Timer Current Count 3 */ + u8 res32[12]; + u32 gtbcr3; /* Global Timer Base Count 3 */ + u8 res33[12]; + u32 gtvpr3; /* Global Timer Vector/Priority 3 */ + u8 res34[12]; + u32 gtdr3; /* Global Timer Destination 3 */ + u8 res35[268]; + u32 tcr; /* Timer Control */ + u8 res36[12]; + u32 irqsr0; /* IRQ_OUT Summary 0 */ + u8 res37[12]; + u32 irqsr1; /* IRQ_OUT Summary 1 */ + u8 res38[12]; + u32 cisr0; /* Critical IRQ Summary 0 */ + u8 res39[12]; + u32 cisr1; /* Critical IRQ Summary 1 */ + u8 res40[188]; + u32 msgr0; /* Message 0 */ + u8 res41[12]; + u32 msgr1; /* Message 1 */ + u8 res42[12]; + u32 msgr2; /* Message 2 */ + u8 res43[12]; + u32 msgr3; /* Message 3 */ + u8 res44[204]; + u32 mer; /* Message Enable */ + u8 res45[12]; + u32 msr; /* Message Status */ + u8 res46[60140]; + u32 eivpr0; /* External IRQ Vector/Priority 0 */ + u8 res47[12]; + u32 eidr0; /* External IRQ Destination 0 */ + u8 res48[12]; + u32 eivpr1; /* External IRQ Vector/Priority 1 */ + u8 res49[12]; + u32 eidr1; /* External IRQ Destination 1 */ + u8 res50[12]; + u32 eivpr2; /* External IRQ Vector/Priority 2 */ + u8 res51[12]; + u32 eidr2; /* External IRQ Destination 2 */ + u8 res52[12]; + u32 eivpr3; /* External IRQ Vector/Priority 3 */ + u8 res53[12]; + u32 eidr3; /* External IRQ Destination 3 */ + u8 res54[12]; + u32 eivpr4; /* External IRQ Vector/Priority 4 */ + u8 res55[12]; + u32 eidr4; /* External IRQ Destination 4 */ + u8 res56[12]; + u32 eivpr5; /* External IRQ Vector/Priority 5 */ + u8 res57[12]; + u32 eidr5; /* External IRQ Destination 5 */ + u8 res58[12]; + u32 eivpr6; /* External IRQ Vector/Priority 6 */ + u8 res59[12]; + u32 eidr6; /* External IRQ Destination 6 */ + u8 res60[12]; + u32 eivpr7; /* External IRQ Vector/Priority 7 */ + u8 res61[12]; + u32 eidr7; /* External IRQ Destination 7 */ + u8 res62[12]; + u32 eivpr8; /* External IRQ Vector/Priority 8 */ + u8 res63[12]; + u32 eidr8; /* External IRQ Destination 8 */ + u8 res64[12]; + u32 eivpr9; /* External IRQ Vector/Priority 9 */ + u8 res65[12]; + u32 eidr9; /* External IRQ Destination 9 */ + u8 res66[12]; + u32 eivpr10; /* External IRQ Vector/Priority 10 */ + u8 res67[12]; + u32 eidr10; /* External IRQ Destination 10 */ + u8 res68[12]; + u32 eivpr11; /* External IRQ Vector/Priority 11 */ + u8 res69[12]; + u32 eidr11; /* External IRQ Destination 11 */ + u8 res70[140]; + u32 iivpr0; /* Internal IRQ Vector/Priority 0 */ + u8 res71[12]; + u32 iidr0; /* Internal IRQ Destination 0 */ + u8 res72[12]; + u32 iivpr1; /* Internal IRQ Vector/Priority 1 */ + u8 res73[12]; + u32 iidr1; /* Internal IRQ Destination 1 */ + u8 res74[12]; + u32 iivpr2; /* Internal IRQ Vector/Priority 2 */ + u8 res75[12]; + u32 iidr2; /* Internal IRQ Destination 2 */ + u8 res76[12]; + u32 iivpr3; /* Internal IRQ Vector/Priority 3 */ + u8 res77[12]; + u32 iidr3; /* Internal IRQ Destination 3 */ + u8 res78[12]; + u32 iivpr4; /* Internal IRQ Vector/Priority 4 */ + u8 res79[12]; + u32 iidr4; /* Internal IRQ Destination 4 */ + u8 res80[12]; + u32 iivpr5; /* Internal IRQ Vector/Priority 5 */ + u8 res81[12]; + u32 iidr5; /* Internal IRQ Destination 5 */ + u8 res82[12]; + u32 iivpr6; /* Internal IRQ Vector/Priority 6 */ + u8 res83[12]; + u32 iidr6; /* Internal IRQ Destination 6 */ + u8 res84[12]; + u32 iivpr7; /* Internal IRQ Vector/Priority 7 */ + u8 res85[12]; + u32 iidr7; /* Internal IRQ Destination 7 */ + u8 res86[12]; + u32 iivpr8; /* Internal IRQ Vector/Priority 8 */ + u8 res87[12]; + u32 iidr8; /* Internal IRQ Destination 8 */ + u8 res88[12]; + u32 iivpr9; /* Internal IRQ Vector/Priority 9 */ + u8 res89[12]; + u32 iidr9; /* Internal IRQ Destination 9 */ + u8 res90[12]; + u32 iivpr10; /* Internal IRQ Vector/Priority 10 */ + u8 res91[12]; + u32 iidr10; /* Internal IRQ Destination 10 */ + u8 res92[12]; + u32 iivpr11; /* Internal IRQ Vector/Priority 11 */ + u8 res93[12]; + u32 iidr11; /* Internal IRQ Destination 11 */ + u8 res94[12]; + u32 iivpr12; /* Internal IRQ Vector/Priority 12 */ + u8 res95[12]; + u32 iidr12; /* Internal IRQ Destination 12 */ + u8 res96[12]; + u32 iivpr13; /* Internal IRQ Vector/Priority 13 */ + u8 res97[12]; + u32 iidr13; /* Internal IRQ Destination 13 */ + u8 res98[12]; + u32 iivpr14; /* Internal IRQ Vector/Priority 14 */ + u8 res99[12]; + u32 iidr14; /* Internal IRQ Destination 14 */ + u8 res100[12]; + u32 iivpr15; /* Internal IRQ Vector/Priority 15 */ + u8 res101[12]; + u32 iidr15; /* Internal IRQ Destination 15 */ + u8 res102[12]; + u32 iivpr16; /* Internal IRQ Vector/Priority 16 */ + u8 res103[12]; + u32 iidr16; /* Internal IRQ Destination 16 */ + u8 res104[12]; + u32 iivpr17; /* Internal IRQ Vector/Priority 17 */ + u8 res105[12]; + u32 iidr17; /* Internal IRQ Destination 17 */ + u8 res106[12]; + u32 iivpr18; /* Internal IRQ Vector/Priority 18 */ + u8 res107[12]; + u32 iidr18; /* Internal IRQ Destination 18 */ + u8 res108[12]; + u32 iivpr19; /* Internal IRQ Vector/Priority 19 */ + u8 res109[12]; + u32 iidr19; /* Internal IRQ Destination 19 */ + u8 res110[12]; + u32 iivpr20; /* Internal IRQ Vector/Priority 20 */ + u8 res111[12]; + u32 iidr20; /* Internal IRQ Destination 20 */ + u8 res112[12]; + u32 iivpr21; /* Internal IRQ Vector/Priority 21 */ + u8 res113[12]; + u32 iidr21; /* Internal IRQ Destination 21 */ + u8 res114[12]; + u32 iivpr22; /* Internal IRQ Vector/Priority 22 */ + u8 res115[12]; + u32 iidr22; /* Internal IRQ Destination 22 */ + u8 res116[12]; + u32 iivpr23; /* Internal IRQ Vector/Priority 23 */ + u8 res117[12]; + u32 iidr23; /* Internal IRQ Destination 23 */ + u8 res118[12]; + u32 iivpr24; /* Internal IRQ Vector/Priority 24 */ + u8 res119[12]; + u32 iidr24; /* Internal IRQ Destination 24 */ + u8 res120[12]; + u32 iivpr25; /* Internal IRQ Vector/Priority 25 */ + u8 res121[12]; + u32 iidr25; /* Internal IRQ Destination 25 */ + u8 res122[12]; + u32 iivpr26; /* Internal IRQ Vector/Priority 26 */ + u8 res123[12]; + u32 iidr26; /* Internal IRQ Destination 26 */ + u8 res124[12]; + u32 iivpr27; /* Internal IRQ Vector/Priority 27 */ + u8 res125[12]; + u32 iidr27; /* Internal IRQ Destination 27 */ + u8 res126[12]; + u32 iivpr28; /* Internal IRQ Vector/Priority 28 */ + u8 res127[12]; + u32 iidr28; /* Internal IRQ Destination 28 */ + u8 res128[12]; + u32 iivpr29; /* Internal IRQ Vector/Priority 29 */ + u8 res129[12]; + u32 iidr29; /* Internal IRQ Destination 29 */ + u8 res130[12]; + u32 iivpr30; /* Internal IRQ Vector/Priority 30 */ + u8 res131[12]; + u32 iidr30; /* Internal IRQ Destination 30 */ + u8 res132[12]; + u32 iivpr31; /* Internal IRQ Vector/Priority 31 */ + u8 res133[12]; + u32 iidr31; /* Internal IRQ Destination 31 */ + u8 res134[4108]; + u32 mivpr0; /* Messaging IRQ Vector/Priority 0 */ + u8 res135[12]; + u32 midr0; /* Messaging IRQ Destination 0 */ + u8 res136[12]; + u32 mivpr1; /* Messaging IRQ Vector/Priority 1 */ + u8 res137[12]; + u32 midr1; /* Messaging IRQ Destination 1 */ + u8 res138[12]; + u32 mivpr2; /* Messaging IRQ Vector/Priority 2 */ + u8 res139[12]; + u32 midr2; /* Messaging IRQ Destination 2 */ + u8 res140[12]; + u32 mivpr3; /* Messaging IRQ Vector/Priority 3 */ + u8 res141[12]; + u32 midr3; /* Messaging IRQ Destination 3 */ + u8 res142[59852]; + u32 ipi0dr0; /* Processor 0 Interprocessor IRQ Dispatch 0 */ + u8 res143[12]; + u32 ipi0dr1; /* Processor 0 Interprocessor IRQ Dispatch 1 */ + u8 res144[12]; + u32 ipi0dr2; /* Processor 0 Interprocessor IRQ Dispatch 2 */ + u8 res145[12]; + u32 ipi0dr3; /* Processor 0 Interprocessor IRQ Dispatch 3 */ + u8 res146[12]; + u32 ctpr0; /* Current Task Priority for Processor 0 */ + u8 res147[12]; + u32 whoami0; /* Who Am I for Processor 0 */ + u8 res148[12]; + u32 iack0; /* IRQ Acknowledge for Processor 0 */ + u8 res149[12]; + u32 eoi0; /* End Of IRQ for Processor 0 */ + u8 res150[130892]; +} ccsr_pic_t; + +/* CPM Block */ +#ifndef CONFIG_CPM2 +typedef struct ccsr_cpm { + u8 res[262144]; +} ccsr_cpm_t; +#else +/* + * DPARM + * General SIU + */ +typedef struct ccsr_cpm_siu { + u8 res1[80]; + u32 smaer; + u32 smser; + u32 smevr; + u8 res2[4]; + u32 lmaer; + u32 lmser; + u32 lmevr; + u8 res3[2964]; +} ccsr_cpm_siu_t; + +/* IRQ Controller */ +typedef struct ccsr_cpm_intctl { + u16 sicr; + u8 res1[2]; + u32 sivec; + u32 sipnrh; + u32 sipnrl; + u32 siprr; + u32 scprrh; + u32 scprrl; + u32 simrh; + u32 simrl; + u32 siexr; + u8 res2[88]; + u32 sccr; + u8 res3[124]; +} ccsr_cpm_intctl_t; + +/* input/output port */ +typedef struct ccsr_cpm_iop { + u32 pdira; + u32 ppara; + u32 psora; + u32 podra; + u32 pdata; + u8 res1[12]; + u32 pdirb; + u32 pparb; + u32 psorb; + u32 podrb; + u32 pdatb; + u8 res2[12]; + u32 pdirc; + u32 pparc; + u32 psorc; + u32 podrc; + u32 pdatc; + u8 res3[12]; + u32 pdird; + u32 ppard; + u32 psord; + u32 podrd; + u32 pdatd; + u8 res4[12]; +} ccsr_cpm_iop_t; + +/* CPM timers */ +typedef struct ccsr_cpm_timer { + u8 tgcr1; + u8 res1[3]; + u8 tgcr2; + u8 res2[11]; + u16 tmr1; + u16 tmr2; + u16 trr1; + u16 trr2; + u16 tcr1; + u16 tcr2; + u16 tcn1; + u16 tcn2; + u16 tmr3; + u16 tmr4; + u16 trr3; + u16 trr4; + u16 tcr3; + u16 tcr4; + u16 tcn3; + u16 tcn4; + u16 ter1; + u16 ter2; + u16 ter3; + u16 ter4; + u8 res3[608]; +} ccsr_cpm_timer_t; + +/* SDMA */ +typedef struct ccsr_cpm_sdma { + u8 sdsr; + u8 res1[3]; + u8 sdmr; + u8 res2[739]; +} ccsr_cpm_sdma_t; + +/* FCC1 */ +typedef struct ccsr_cpm_fcc1 { + u32 gfmr; + u32 fpsmr; + u16 ftodr; + u8 res1[2]; + u16 fdsr; + u8 res2[2]; + u16 fcce; + u8 res3[2]; + u16 fccm; + u8 res4[2]; + u8 fccs; + u8 res5[3]; + u8 ftirr_phy[4]; +} ccsr_cpm_fcc1_t; + +/* FCC2 */ +typedef struct ccsr_cpm_fcc2 { + u32 gfmr; + u32 fpsmr; + u16 ftodr; + u8 res1[2]; + u16 fdsr; + u8 res2[2]; + u16 fcce; + u8 res3[2]; + u16 fccm; + u8 res4[2]; + u8 fccs; + u8 res5[3]; + u8 ftirr_phy[4]; +} ccsr_cpm_fcc2_t; + +/* FCC3 */ +typedef struct ccsr_cpm_fcc3 { + u32 gfmr; + u32 fpsmr; + u16 ftodr; + u8 res1[2]; + u16 fdsr; + u8 res2[2]; + u16 fcce; + u8 res3[2]; + u16 fccm; + u8 res4[2]; + u8 fccs; + u8 res5[3]; + u8 res[36]; +} ccsr_cpm_fcc3_t; + +/* FCC1 extended */ +typedef struct ccsr_cpm_fcc1_ext { + u32 firper; + u32 firer; + u32 firsr_h; + u32 firsr_l; + u8 gfemr; + u8 res[15]; + +} ccsr_cpm_fcc1_ext_t; + +/* FCC2 extended */ +typedef struct ccsr_cpm_fcc2_ext { + u32 firper; + u32 firer; + u32 firsr_h; + u32 firsr_l; + u8 gfemr; + u8 res[31]; +} ccsr_cpm_fcc2_ext_t; + +/* FCC3 extended */ +typedef struct ccsr_cpm_fcc3_ext { + u8 gfemr; + u8 res[47]; +} ccsr_cpm_fcc3_ext_t; + +/* TC layers */ +typedef struct ccsr_cpm_tmp1 { + u8 res[496]; +} ccsr_cpm_tmp1_t; + +/* BRGs:5,6,7,8 */ +typedef struct ccsr_cpm_brg2 { + u32 brgc5; + u32 brgc6; + u32 brgc7; + u32 brgc8; + u8 res[608]; +} ccsr_cpm_brg2_t; + +/* I2C */ +typedef struct ccsr_cpm_i2c { + u8 i2mod; + u8 res1[3]; + u8 i2add; + u8 res2[3]; + u8 i2brg; + u8 res3[3]; + u8 i2com; + u8 res4[3]; + u8 i2cer; + u8 res5[3]; + u8 i2cmr; + u8 res6[331]; +} ccsr_cpm_i2c_t; + +/* CPM core */ +typedef struct ccsr_cpm_cp { + u32 cpcr; + u32 rccr; + u8 res1[14]; + u16 rter; + u8 res2[2]; + u16 rtmr; + u16 rtscr; + u8 res3[2]; + u32 rtsr; + u8 res4[12]; +} ccsr_cpm_cp_t; + +/* BRGs:1,2,3,4 */ +typedef struct ccsr_cpm_brg1 { + u32 brgc1; + u32 brgc2; + u32 brgc3; + u32 brgc4; +} ccsr_cpm_brg1_t; + +/* SCC1-SCC4 */ +typedef struct ccsr_cpm_scc { + u32 gsmrl; + u32 gsmrh; + u16 psmr; + u8 res1[2]; + u16 todr; + u16 dsr; + u16 scce; + u8 res2[2]; + u16 sccm; + u8 res3; + u8 sccs; + u8 res4[8]; +} ccsr_cpm_scc_t; + +typedef struct ccsr_cpm_tmp2 { + u8 res[32]; +} ccsr_cpm_tmp2_t; + +/* SPI */ +typedef struct ccsr_cpm_spi { + u16 spmode; + u8 res1[4]; + u8 spie; + u8 res2[3]; + u8 spim; + u8 res3[2]; + u8 spcom; + u8 res4[82]; +} ccsr_cpm_spi_t; + +/* CPM MUX */ +typedef struct ccsr_cpm_mux { + u8 cmxsi1cr; + u8 res1; + u8 cmxsi2cr; + u8 res2; + u32 cmxfcr; + u32 cmxscr; + u8 res3[2]; + u16 cmxuar; + u8 res4[16]; +} ccsr_cpm_mux_t; + +/* SI,MCC,etc */ +typedef struct ccsr_cpm_tmp3 { + u8 res[58592]; +} ccsr_cpm_tmp3_t; + +typedef struct ccsr_cpm_iram { + u32 iram[8192]; + u8 res[98304]; +} ccsr_cpm_iram_t; + +typedef struct ccsr_cpm { + /* Some references are into the unique & known dpram spaces, + * others are from the generic base. + */ +#define im_dprambase im_dpram1 + u8 im_dpram1[16*1024]; + u8 res1[16*1024]; + u8 im_dpram2[16*1024]; + u8 res2[16*1024]; + ccsr_cpm_siu_t im_cpm_siu; /* SIU Configuration */ + ccsr_cpm_intctl_t im_cpm_intctl; /* IRQ Controller */ + ccsr_cpm_iop_t im_cpm_iop; /* IO Port control/status */ + ccsr_cpm_timer_t im_cpm_timer; /* CPM timers */ + ccsr_cpm_sdma_t im_cpm_sdma; /* SDMA control/status */ + ccsr_cpm_fcc1_t im_cpm_fcc1; + ccsr_cpm_fcc2_t im_cpm_fcc2; + ccsr_cpm_fcc3_t im_cpm_fcc3; + ccsr_cpm_fcc1_ext_t im_cpm_fcc1_ext; + ccsr_cpm_fcc2_ext_t im_cpm_fcc2_ext; + ccsr_cpm_fcc3_ext_t im_cpm_fcc3_ext; + ccsr_cpm_tmp1_t im_cpm_tmp1; + ccsr_cpm_brg2_t im_cpm_brg2; + ccsr_cpm_i2c_t im_cpm_i2c; + ccsr_cpm_cp_t im_cpm_cp; + ccsr_cpm_brg1_t im_cpm_brg1; + ccsr_cpm_scc_t im_cpm_scc[4]; + ccsr_cpm_tmp2_t im_cpm_tmp2; + ccsr_cpm_spi_t im_cpm_spi; + ccsr_cpm_mux_t im_cpm_mux; + ccsr_cpm_tmp3_t im_cpm_tmp3; + ccsr_cpm_iram_t im_cpm_iram; +} ccsr_cpm_t; +#endif + +/* RapidIO Registers */ +typedef struct ccsr_rio { + u32 didcar; /* Device Identity Capability */ + u32 dicar; /* Device Information Capability */ + u32 aidcar; /* Assembly Identity Capability */ + u32 aicar; /* Assembly Information Capability */ + u32 pefcar; /* Processing Element Features Capability */ + u32 spicar; /* Switch Port Information Capability */ + u32 socar; /* Source Operations Capability */ + u32 docar; /* Destination Operations Capability */ + u8 res1[32]; + u32 msr; /* Mailbox Cmd And Status */ + u32 pwdcsr; /* Port-Write & Doorbell Cmd And Status */ + u8 res2[4]; + u32 pellccsr; /* Processing Element Logic Layer CCSR */ + u8 res3[12]; + u32 lcsbacsr; /* Local Cfg Space Base Addr Cmd & Status */ + u32 bdidcsr; /* Base Device ID Cmd & Status */ + u8 res4[4]; + u32 hbdidlcsr; /* Host Base Device ID Lock Cmd & Status */ + u32 ctcsr; /* Component Tag Cmd & Status */ + u8 res5[144]; + u32 pmbh0csr; /* Port Maint. Block Hdr 0 Cmd & Status */ + u8 res6[28]; + u32 pltoccsr; /* Port Link Time-out Ctrl Cmd & Status */ + u32 prtoccsr; /* Port Response Time-out Ctrl Cmd & Status */ + u8 res7[20]; + u32 pgccsr; /* Port General Cmd & Status */ + u32 plmreqcsr; /* Port Link Maint. Request Cmd & Status */ + u32 plmrespcsr; /* Port Link Maint. Response Cmd & Status */ + u32 plascsr; /* Port Local Ackid Status Cmd & Status */ + u8 res8[12]; + u32 pescsr; /* Port Error & Status Cmd & Status */ + u32 pccsr; /* Port Control Cmd & Status */ + u8 res9[65184]; + u32 cr; /* Port Control Cmd & Status */ + u8 res10[12]; + u32 pcr; /* Port Configuration */ + u32 peir; /* Port Error Injection */ + u8 res11[3048]; + u32 rowtar0; /* RIO Outbound Window Translation Addr 0 */ + u8 res12[12]; + u32 rowar0; /* RIO Outbound Attrs 0 */ + u8 res13[12]; + u32 rowtar1; /* RIO Outbound Window Translation Addr 1 */ + u8 res14[4]; + u32 rowbar1; /* RIO Outbound Window Base Addr 1 */ + u8 res15[4]; + u32 rowar1; /* RIO Outbound Attrs 1 */ + u8 res16[12]; + u32 rowtar2; /* RIO Outbound Window Translation Addr 2 */ + u8 res17[4]; + u32 rowbar2; /* RIO Outbound Window Base Addr 2 */ + u8 res18[4]; + u32 rowar2; /* RIO Outbound Attrs 2 */ + u8 res19[12]; + u32 rowtar3; /* RIO Outbound Window Translation Addr 3 */ + u8 res20[4]; + u32 rowbar3; /* RIO Outbound Window Base Addr 3 */ + u8 res21[4]; + u32 rowar3; /* RIO Outbound Attrs 3 */ + u8 res22[12]; + u32 rowtar4; /* RIO Outbound Window Translation Addr 4 */ + u8 res23[4]; + u32 rowbar4; /* RIO Outbound Window Base Addr 4 */ + u8 res24[4]; + u32 rowar4; /* RIO Outbound Attrs 4 */ + u8 res25[12]; + u32 rowtar5; /* RIO Outbound Window Translation Addr 5 */ + u8 res26[4]; + u32 rowbar5; /* RIO Outbound Window Base Addr 5 */ + u8 res27[4]; + u32 rowar5; /* RIO Outbound Attrs 5 */ + u8 res28[12]; + u32 rowtar6; /* RIO Outbound Window Translation Addr 6 */ + u8 res29[4]; + u32 rowbar6; /* RIO Outbound Window Base Addr 6 */ + u8 res30[4]; + u32 rowar6; /* RIO Outbound Attrs 6 */ + u8 res31[12]; + u32 rowtar7; /* RIO Outbound Window Translation Addr 7 */ + u8 res32[4]; + u32 rowbar7; /* RIO Outbound Window Base Addr 7 */ + u8 res33[4]; + u32 rowar7; /* RIO Outbound Attrs 7 */ + u8 res34[12]; + u32 rowtar8; /* RIO Outbound Window Translation Addr 8 */ + u8 res35[4]; + u32 rowbar8; /* RIO Outbound Window Base Addr 8 */ + u8 res36[4]; + u32 rowar8; /* RIO Outbound Attrs 8 */ + u8 res37[76]; + u32 riwtar4; /* RIO Inbound Window Translation Addr 4 */ + u8 res38[4]; + u32 riwbar4; /* RIO Inbound Window Base Addr 4 */ + u8 res39[4]; + u32 riwar4; /* RIO Inbound Attrs 4 */ + u8 res40[12]; + u32 riwtar3; /* RIO Inbound Window Translation Addr 3 */ + u8 res41[4]; + u32 riwbar3; /* RIO Inbound Window Base Addr 3 */ + u8 res42[4]; + u32 riwar3; /* RIO Inbound Attrs 3 */ + u8 res43[12]; + u32 riwtar2; /* RIO Inbound Window Translation Addr 2 */ + u8 res44[4]; + u32 riwbar2; /* RIO Inbound Window Base Addr 2 */ + u8 res45[4]; + u32 riwar2; /* RIO Inbound Attrs 2 */ + u8 res46[12]; + u32 riwtar1; /* RIO Inbound Window Translation Addr 1 */ + u8 res47[4]; + u32 riwbar1; /* RIO Inbound Window Base Addr 1 */ + u8 res48[4]; + u32 riwar1; /* RIO Inbound Attrs 1 */ + u8 res49[12]; + u32 riwtar0; /* RIO Inbound Window Translation Addr 0 */ + u8 res50[12]; + u32 riwar0; /* RIO Inbound Attrs 0 */ + u8 res51[12]; + u32 pnfedr; /* Port Notification/Fatal Error Detect */ + u32 pnfedir; /* Port Notification/Fatal Error Detect */ + u32 pnfeier; /* Port Notification/Fatal Error IRQ Enable */ + u32 pecr; /* Port Error Control */ + u32 pepcsr0; /* Port Error Packet/Control Symbol 0 */ + u32 pepr1; /* Port Error Packet 1 */ + u32 pepr2; /* Port Error Packet 2 */ + u8 res52[4]; + u32 predr; /* Port Recoverable Error Detect */ + u8 res53[4]; + u32 pertr; /* Port Error Recovery Threshold */ + u32 prtr; /* Port Retry Threshold */ + u8 res54[464]; + u32 omr; /* Outbound Mode */ + u32 osr; /* Outbound Status */ + u32 eodqtpar; /* Extended Outbound Desc Queue Tail Ptr Addr */ + u32 odqtpar; /* Outbound Desc Queue Tail Ptr Addr */ + u32 eosar; /* Extended Outbound Unit Source Addr */ + u32 osar; /* Outbound Unit Source Addr */ + u32 odpr; /* Outbound Destination Port */ + u32 odatr; /* Outbound Destination Attrs */ + u32 odcr; /* Outbound Doubleword Count */ + u32 eodqhpar; /* Extended Outbound Desc Queue Head Ptr Addr */ + u32 odqhpar; /* Outbound Desc Queue Head Ptr Addr */ + u8 res55[52]; + u32 imr; /* Outbound Mode */ + u32 isr; /* Inbound Status */ + u32 eidqtpar; /* Extended Inbound Desc Queue Tail Ptr Addr */ + u32 idqtpar; /* Inbound Desc Queue Tail Ptr Addr */ + u32 eifqhpar; /* Extended Inbound Frame Queue Head Ptr Addr */ + u32 ifqhpar; /* Inbound Frame Queue Head Ptr Addr */ + u8 res56[1000]; + u32 dmr; /* Doorbell Mode */ + u32 dsr; /* Doorbell Status */ + u32 edqtpar; /* Extended Doorbell Queue Tail Ptr Addr */ + u32 dqtpar; /* Doorbell Queue Tail Ptr Addr */ + u32 edqhpar; /* Extended Doorbell Queue Head Ptr Addr */ + u32 dqhpar; /* Doorbell Queue Head Ptr Addr */ + u8 res57[104]; + u32 pwmr; /* Port-Write Mode */ + u32 pwsr; /* Port-Write Status */ + u32 epwqbar; /* Extended Port-Write Queue Base Addr */ + u32 pwqbar; /* Port-Write Queue Base Addr */ + u8 res58[60176]; +} ccsr_rio_t; + +/* Quick Engine Block Pin Muxing Registers */ +typedef struct par_io { + u32 cpodr; + u32 cpdat; + u32 cpdir1; + u32 cpdir2; + u32 cppar1; + u32 cppar2; + u8 res[8]; +} par_io_t; + +#ifdef CONFIG_SYS_FSL_CPC +/* + * Define a single offset that is the start of all the CPC register + * blocks - if there is more than one CPC, we expect these to be + * contiguous 4k regions + */ + +typedef struct cpc_corenet { + u32 cpccsr0; /* Config/status reg */ + u32 res1; + u32 cpccfg0; /* Configuration register */ + u32 res2; + u32 cpcewcr0; /* External Write reg 0 */ + u32 cpcewabr0; /* External write base reg 0 */ + u32 res3[2]; + u32 cpcewcr1; /* External Write reg 1 */ + u32 cpcewabr1; /* External write base reg 1 */ + u32 res4[54]; + u32 cpcsrcr1; /* SRAM control reg 1 */ + u32 cpcsrcr0; /* SRAM control reg 0 */ + u32 res5[62]; + struct { + u32 id; /* partition ID */ + u32 res; + u32 alloc; /* partition allocation */ + u32 way; /* partition way */ + } partition_regs[16]; + u32 res6[704]; + u32 cpcerrinjhi; /* Error injection high */ + u32 cpcerrinjlo; /* Error injection lo */ + u32 cpcerrinjctl; /* Error injection control */ + u32 res7[5]; + u32 cpccaptdatahi; /* capture data high */ + u32 cpccaptdatalo; /* capture data low */ + u32 cpcaptecc; /* capture ECC */ + u32 res8[5]; + u32 cpcerrdet; /* error detect */ + u32 cpcerrdis; /* error disable */ + u32 cpcerrinten; /* errir interrupt enable */ + u32 cpcerrattr; /* error attribute */ + u32 cpcerreaddr; /* error extended address */ + u32 cpcerraddr; /* error address */ + u32 cpcerrctl; /* error control */ + u32 res9[105]; /* pad out to 4k */ +} cpc_corenet_t; + +#define CPC_CSR0_CE 0x80000000 /* Cache Enable */ +#define CPC_CSR0_PE 0x40000000 /* Enable ECC */ +#define CPC_CSR0_FI 0x00200000 /* Cache Flash Invalidate */ +#define CPC_CSR0_WT 0x00080000 /* Write-through mode */ +#define CPC_CSR0_FL 0x00000800 /* Hardware cache flush */ +#define CPC_CSR0_LFC 0x00000400 /* Cache Lock Flash Clear */ +#define CPC_CFG0_SZ_MASK 0x00003fff +#define CPC_CFG0_SZ_K(x) ((x & CPC_CFG0_SZ_MASK) << 6) +#define CPC_CFG0_NUM_WAYS(x) (((x >> 14) & 0x1f) + 1) +#define CPC_CFG0_LINE_SZ(x) ((((x >> 23) & 0x3) + 1) * 32) +#define CPC_SRCR1_SRBARU_MASK 0x0000ffff +#define CPC_SRCR1_SRBARU(x) (((unsigned long long)x >> 32) \ + & CPC_SRCR1_SRBARU_MASK) +#define CPC_SRCR0_SRBARL_MASK 0xffff8000 +#define CPC_SRCR0_SRBARL(x) (x & CPC_SRCR0_SRBARL_MASK) +#define CPC_SRCR0_INTLVEN 0x00000100 +#define CPC_SRCR0_SRAMSZ_1_WAY 0x00000000 +#define CPC_SRCR0_SRAMSZ_2_WAY 0x00000002 +#define CPC_SRCR0_SRAMSZ_4_WAY 0x00000004 +#define CPC_SRCR0_SRAMSZ_8_WAY 0x00000006 +#define CPC_SRCR0_SRAMSZ_16_WAY 0x00000008 +#define CPC_SRCR0_SRAMSZ_32_WAY 0x0000000a +#define CPC_SRCR0_SRAMEN 0x00000001 +#define CPC_ERRDIS_TMHITDIS 0x00000080 /* multi-way hit disable */ +#endif /* CONFIG_SYS_FSL_CPC */ + +/* Global Utilities Block */ +#ifdef CONFIG_FSL_CORENET +typedef struct ccsr_gur { + u32 porsr1; /* POR status */ + u8 res1[28]; + u32 gpporcr1; /* General-purpose POR configuration */ + u8 res2[12]; + u32 gpiocr; /* GPIO control */ + u8 res3[12]; + u32 gpoutdr; /* General-purpose output data */ + u8 res4[12]; + u32 gpindr; /* General-purpose input data */ + u8 res5[12]; + u32 pmuxcr; /* Alt function signal multiplex control */ + u8 res6[12]; + u32 devdisr; /* Device disable control */ +#define FSL_CORENET_DEVDISR_PCIE1 0x80000000 +#define FSL_CORENET_DEVDISR_PCIE2 0x40000000 +#define FSL_CORENET_DEVDISR_PCIE3 0x20000000 +#define FSL_CORENET_DEVDISR_RMU 0x08000000 +#define FSL_CORENET_DEVDISR_SRIO1 0x04000000 +#define FSL_CORENET_DEVDISR_SRIO2 0x02000000 +#define FSL_CORENET_DEVDISR_DMA1 0x00400000 +#define FSL_CORENET_DEVDISR_DMA2 0x00200000 +#define FSL_CORENET_DEVDISR_DDR1 0x00100000 +#define FSL_CORENET_DEVDISR_DDR2 0x00080000 +#define FSL_CORENET_DEVDISR_DBG 0x00010000 +#define FSL_CORENET_DEVDISR_NAL 0x00008000 +#define FSL_CORENET_DEVDISR_ELBC 0x00001000 +#define FSL_CORENET_DEVDISR_USB1 0x00000800 +#define FSL_CORENET_DEVDISR_USB2 0x00000400 +#define FSL_CORENET_DEVDISR_ESDHC 0x00000100 +#define FSL_CORENET_DEVDISR_GPIO 0x00000080 +#define FSL_CORENET_DEVDISR_ESPI 0x00000040 +#define FSL_CORENET_DEVDISR_I2C1 0x00000020 +#define FSL_CORENET_DEVDISR_I2C2 0x00000010 +#define FSL_CORENET_DEVDISR_DUART1 0x00000002 +#define FSL_CORENET_DEVDISR_DUART2 0x00000001 + u8 res7[12]; + u32 powmgtcsr; /* Power management status & control */ + u8 res8[12]; + u32 coredisru; /* uppper portion for support of 64 cores */ + u32 coredisrl; /* lower portion for support of 64 cores */ + u8 res9[8]; + u32 pvr; /* Processor version */ + u32 svr; /* System version */ + u8 res10[8]; + u32 rstcr; /* Reset control */ + u32 rstrqpblsr; /* Reset request preboot loader status */ + u8 res11[8]; + u32 rstrqmr1; /* Reset request mask */ + u8 res12[4]; + u32 rstrqsr1; /* Reset request status */ + u8 res13[4]; + u8 res14[4]; + u32 rstrqwdtmrl; /* Reset request WDT mask */ + u8 res15[4]; + u32 rstrqwdtsrl; /* Reset request WDT status */ + u8 res16[4]; + u32 brrl; /* Boot release */ + u8 res17[24]; + u32 rcwsr[16]; /* Reset control word status */ +#define FSL_CORENET_RCWSR4_SRDS_PRTCL 0xfc000000 +#define FSL_CORENET_RCWSR5_DDR_SYNC 0x00008000 +#define FSL_CORENET_RCWSR5_DDR_SYNC_SHIFT 15 +#define FSL_CORENET_RCWSR7_MCK_TO_PLAT_RAT 0x00400000 +#define FSL_CORENET_RCWSR8_HOST_AGT_B1 0x00e00000 +#define FSL_CORENET_RCWSR8_HOST_AGT_B2 0x00100000 + u8 res18[192]; + u32 scratchrw[4]; /* Scratch Read/Write */ + u8 res19[240]; + u32 scratchw1r[4]; /* Scratch Read (Write once) */ + u8 res20[240]; + u32 scrtsr[8]; /* Core reset status */ + u8 res21[224]; + u32 pex1liodnr; /* PCI Express 1 LIODN */ + u32 pex2liodnr; /* PCI Express 2 LIODN */ + u32 pex3liodnr; /* PCI Express 3 LIODN */ + u32 pex4liodnr; /* PCI Express 4 LIODN */ + u32 rio1liodnr; /* RIO 1 LIODN */ + u32 rio2liodnr; /* RIO 2 LIODN */ + u32 rio3liodnr; /* RIO 3 LIODN */ + u32 rio4liodnr; /* RIO 4 LIODN */ + u32 usb1liodnr; /* USB 1 LIODN */ + u32 usb2liodnr; /* USB 2 LIODN */ + u32 usb3liodnr; /* USB 3 LIODN */ + u32 usb4liodnr; /* USB 4 LIODN */ + u32 sdmmc1liodnr; /* SD/MMC 1 LIODN */ + u32 sdmmc2liodnr; /* SD/MMC 2 LIODN */ + u32 sdmmc3liodnr; /* SD/MMC 3 LIODN */ + u32 sdmmc4liodnr; /* SD/MMC 4 LIODN */ + u32 rmuliodnr; /* RIO Message Unit LIODN */ + u32 rduliodnr; /* RIO Doorbell Unit LIODN */ + u32 rpwuliodnr; /* RIO Port Write Unit LIODN */ + u8 res22[52]; + u32 dma1liodnr; /* DMA 1 LIODN */ + u32 dma2liodnr; /* DMA 2 LIODN */ + u32 dma3liodnr; /* DMA 3 LIODN */ + u32 dma4liodnr; /* DMA 4 LIODN */ + u8 res23[48]; + u8 res24[64]; + u32 pblsr; /* Preboot loader status */ + u32 pamubypenr; /* PAMU bypass enable */ + u32 dmacr1; /* DMA control */ + u8 res25[4]; + u32 gensr1; /* General status */ + u8 res26[12]; + u32 gencr1; /* General control */ + u8 res27[12]; + u8 res28[4]; + u32 cgensrl; /* Core general status */ + u8 res29[8]; + u8 res30[4]; + u32 cgencrl; /* Core general control */ + u8 res31[184]; + u32 sriopstecr; /* SRIO prescaler timer enable control */ + u8 res32[2300]; +} ccsr_gur_t; + +typedef struct ccsr_clk { + u32 clkc0csr; /* Core 0 Clock control/status */ + u8 res1[0x1c]; + u32 clkc1csr; /* Core 1 Clock control/status */ + u8 res2[0x1c]; + u32 clkc2csr; /* Core 2 Clock control/status */ + u8 res3[0x1c]; + u32 clkc3csr; /* Core 3 Clock control/status */ + u8 res4[0x1c]; + u32 clkc4csr; /* Core 4 Clock control/status */ + u8 res5[0x1c]; + u32 clkc5csr; /* Core 5 Clock control/status */ + u8 res6[0x1c]; + u32 clkc6csr; /* Core 6 Clock control/status */ + u8 res7[0x1c]; + u32 clkc7csr; /* Core 7 Clock control/status */ + u8 res8[0x71c]; + u32 pllc1gsr; /* Cluster PLL 1 General Status */ + u8 res10[0x1c]; + u32 pllc2gsr; /* Cluster PLL 2 General Status */ + u8 res11[0x1c]; + u32 pllc3gsr; /* Cluster PLL 3 General Status */ + u8 res12[0x1c]; + u32 pllc4gsr; /* Cluster PLL 4 General Status */ + u8 res13[0x39c]; + u32 pllpgsr; /* Platform PLL General Status */ + u8 res14[0x1c]; + u32 plldgsr; /* DDR PLL General Status */ + u8 res15[0x3dc]; +} ccsr_clk_t; + +typedef struct ccsr_rcpm { + u8 res1[4]; + u32 cdozsrl; /* Core Doze Status */ + u8 res2[4]; + u32 cdozcrl; /* Core Doze Control */ + u8 res3[4]; + u32 cnapsrl; /* Core Nap Status */ + u8 res4[4]; + u32 cnapcrl; /* Core Nap Control */ + u8 res5[4]; + u32 cdozpsrl; /* Core Doze Previous Status */ + u8 res6[4]; + u32 cdozpcrl; /* Core Doze Previous Control */ + u8 res7[4]; + u32 cwaitsrl; /* Core Wait Status */ + u8 res8[8]; + u32 powmgtcsr; /* Power Mangement Control & Status */ + u8 res9[12]; + u32 ippdexpcr0; /* IP Powerdown Exception Control 0 */ + u8 res10[12]; + u8 res11[4]; + u32 cpmimrl; /* Core PM IRQ Masking */ + u8 res12[4]; + u32 cpmcimrl; /* Core PM Critical IRQ Masking */ + u8 res13[4]; + u32 cpmmcimrl; /* Core PM Machine Check IRQ Masking */ + u8 res14[4]; + u32 cpmnmimrl; /* Core PM NMI Masking */ + u8 res15[4]; + u32 ctbenrl; /* Core Time Base Enable */ + u8 res16[4]; + u32 ctbclkselrl; /* Core Time Base Clock Select */ + u8 res17[4]; + u32 ctbhltcrl; /* Core Time Base Halt Control */ + u8 res18[0xf68]; +} ccsr_rcpm_t; + +#else +typedef struct ccsr_gur { + u32 porpllsr; /* POR PLL ratio status */ +#ifdef CONFIG_MPC8536 +#define MPC85xx_PORPLLSR_DDR_RATIO 0x3e000000 +#define MPC85xx_PORPLLSR_DDR_RATIO_SHIFT 25 +#else +#define MPC85xx_PORPLLSR_DDR_RATIO 0x00003e00 +#define MPC85xx_PORPLLSR_DDR_RATIO_SHIFT 9 +#endif +#define MPC85xx_PORPLLSR_QE_RATIO 0x3e000000 +#define MPC85xx_PORPLLSR_QE_RATIO_SHIFT 25 +#define MPC85xx_PORPLLSR_PLAT_RATIO 0x0000003e +#define MPC85xx_PORPLLSR_PLAT_RATIO_SHIFT 1 + u32 porbmsr; /* POR boot mode status */ +#define MPC85xx_PORBMSR_HA 0x00070000 +#define MPC85xx_PORBMSR_HA_SHIFT 16 + u32 porimpscr; /* POR I/O impedance status & control */ + u32 pordevsr; /* POR I/O device status regsiter */ +#define MPC85xx_PORDEVSR_SGMII1_DIS 0x20000000 +#define MPC85xx_PORDEVSR_SGMII2_DIS 0x10000000 +#define MPC85xx_PORDEVSR_SGMII3_DIS 0x08000000 +#define MPC85xx_PORDEVSR_SGMII4_DIS 0x04000000 +#define MPC85xx_PORDEVSR_SRDS2_IO_SEL 0x38000000 +#define MPC85xx_PORDEVSR_PCI1 0x00800000 +#define MPC85xx_PORDEVSR_IO_SEL 0x00780000 +#define MPC85xx_PORDEVSR_IO_SEL_SHIFT 19 +#define MPC85xx_PORDEVSR_PCI2_ARB 0x00040000 +#define MPC85xx_PORDEVSR_PCI1_ARB 0x00020000 +#define MPC85xx_PORDEVSR_PCI1_PCI32 0x00010000 +#define MPC85xx_PORDEVSR_PCI1_SPD 0x00008000 +#define MPC85xx_PORDEVSR_PCI2_SPD 0x00004000 +#define MPC85xx_PORDEVSR_DRAM_RTYPE 0x00000060 +#define MPC85xx_PORDEVSR_RIO_CTLS 0x00000008 +#define MPC85xx_PORDEVSR_RIO_DEV_ID 0x00000007 + u32 pordbgmsr; /* POR debug mode status */ + u32 pordevsr2; /* POR I/O device status 2 */ +/* The 8544 RM says this is bit 26, but it's really bit 24 */ +#define MPC85xx_PORDEVSR2_SEC_CFG 0x00000080 + u8 res1[8]; + u32 gpporcr; /* General-purpose POR configuration */ + u8 res2[12]; + u32 gpiocr; /* GPIO control */ + u8 res3[12]; +#if defined(CONFIG_MPC8569) + u32 plppar1; /* Platform port pin assignment 1 */ + u32 plppar2; /* Platform port pin assignment 2 */ + u32 plpdir1; /* Platform port pin direction 1 */ + u32 plpdir2; /* Platform port pin direction 2 */ +#else + u32 gpoutdr; /* General-purpose output data */ + u8 res4[12]; +#endif + u32 gpindr; /* General-purpose input data */ + u8 res5[12]; + u32 pmuxcr; /* Alt. function signal multiplex control */ +#define MPC85xx_PMUXCR_SD_DATA 0x80000000 +#define MPC85xx_PMUXCR_SDHC_CD 0x40000000 +#define MPC85xx_PMUXCR_SDHC_WP 0x20000000 + u8 res6[12]; + u32 devdisr; /* Device disable control */ +#define MPC85xx_DEVDISR_PCI1 0x80000000 +#define MPC85xx_DEVDISR_PCI2 0x40000000 +#define MPC85xx_DEVDISR_PCIE 0x20000000 +#define MPC85xx_DEVDISR_LBC 0x08000000 +#define MPC85xx_DEVDISR_PCIE2 0x04000000 +#define MPC85xx_DEVDISR_PCIE3 0x02000000 +#define MPC85xx_DEVDISR_SEC 0x01000000 +#define MPC85xx_DEVDISR_SRIO 0x00080000 +#define MPC85xx_DEVDISR_RMSG 0x00040000 +#define MPC85xx_DEVDISR_DDR 0x00010000 +#define MPC85xx_DEVDISR_CPU 0x00008000 +#define MPC85xx_DEVDISR_CPU0 MPC85xx_DEVDISR_CPU +#define MPC85xx_DEVDISR_TB 0x00004000 +#define MPC85xx_DEVDISR_TB0 MPC85xx_DEVDISR_TB +#define MPC85xx_DEVDISR_CPU1 0x00002000 +#define MPC85xx_DEVDISR_TB1 0x00001000 +#define MPC85xx_DEVDISR_DMA 0x00000400 +#define MPC85xx_DEVDISR_TSEC1 0x00000080 +#define MPC85xx_DEVDISR_TSEC2 0x00000040 +#define MPC85xx_DEVDISR_TSEC3 0x00000020 +#define MPC85xx_DEVDISR_TSEC4 0x00000010 +#define MPC85xx_DEVDISR_I2C 0x00000004 +#define MPC85xx_DEVDISR_DUART 0x00000002 + u8 res7[12]; + u32 powmgtcsr; /* Power management status & control */ + u8 res8[12]; + u32 mcpsumr; /* Machine check summary */ + u8 res9[12]; + u32 pvr; /* Processor version */ + u32 svr; /* System version */ + u8 res10a[8]; + u32 rstcr; /* Reset control */ +#if defined(CONFIG_MPC8568)||defined(CONFIG_MPC8569) + u8 res10b[76]; + par_io_t qe_par_io[7]; + u8 res10c[3136]; +#else + u8 res10b[3404]; +#endif + u32 clkocr; /* Clock out select */ + u8 res11[12]; + u32 ddrdllcr; /* DDR DLL control */ + u8 res12[12]; + u32 lbcdllcr; /* LBC DLL control */ + u8 res13[248]; + u32 lbiuiplldcr0; /* LBIU PLL Debug Reg 0 */ + u32 lbiuiplldcr1; /* LBIU PLL Debug Reg 1 */ + u32 ddrioovcr; /* DDR IO Override Control */ + u32 tsec12ioovcr; /* eTSEC 1/2 IO override control */ + u32 tsec34ioovcr; /* eTSEC 3/4 IO override control */ + u8 res15[61648]; +} ccsr_gur_t; +#endif + +typedef struct serdes_corenet { + struct { + u32 rstctl; /* Reset Control Register */ +#define SRDS_RSTCTL_RST 0x80000000 +#define SRDS_RSTCTL_RSTDONE 0x40000000 +#define SRDS_RSTCTL_RSTERR 0x20000000 + u32 pllcr0; /* PLL Control Register 0 */ + u32 pllcr1; /* PLL Control Register 1 */ +#define SRDS_PLLCR1_PLL_BWSEL 0x08000000 + u32 res[5]; + } bank[3]; + u32 res1[12]; + u32 srdstcalcr; /* TX Calibration Control */ + u32 res2[3]; + u32 srdsrcalcr; /* RX Calibration Control */ + u32 res3[3]; + u32 srdsgr0; /* General Register 0 */ + u32 res4[11]; + u32 srdspccr0; /* Protocol Converter Config 0 */ + u32 srdspccr1; /* Protocol Converter Config 1 */ + u32 srdspccr2; /* Protocol Converter Config 2 */ +#define SRDS_PCCR2_RST_XGMII1 0x00800000 +#define SRDS_PCCR2_RST_XGMII2 0x00400000 + u32 res5[197]; + struct { + u32 gcr0; /* General Control Register 0 */ +#define SRDS_GCR0_RRST 0x00400000 +#define SRDS_GCR0_1STLANE 0x00010000 + u32 gcr1; /* General Control Register 1 */ +#define SRDS_GCR1_REIDL_CTL_MASK 0x001f0000 +#define SRDS_GCR1_REIDL_CTL_PCIE 0x00100000 +#define SRDS_GCR1_REIDL_CTL_SRIO 0x00000000 +#define SRDS_GCR1_REIDL_CTL_SGMII 0x00040000 +#define SRDS_GCR1_OPAD_CTL 0x04000000 + u32 res1[4]; + u32 tecr0; /* TX Equalization Control Reg 0 */ +#define SRDS_TECR0_TEQ_TYPE_MASK 0x30000000 +#define SRDS_TECR0_TEQ_TYPE_2LVL 0x10000000 + u32 res3; + u32 ttlcr0; /* Transition Tracking Loop Ctrl 0 */ + u32 res4[7]; + } lane[24]; + u32 res6[384]; +} serdes_corenet_t; + +enum { + FSL_SRDS_B1_LANE_A = 0, + FSL_SRDS_B1_LANE_B = 1, + FSL_SRDS_B1_LANE_C = 2, + FSL_SRDS_B1_LANE_D = 3, + FSL_SRDS_B1_LANE_E = 4, + FSL_SRDS_B1_LANE_F = 5, + FSL_SRDS_B1_LANE_G = 6, + FSL_SRDS_B1_LANE_H = 7, + FSL_SRDS_B1_LANE_I = 8, + FSL_SRDS_B1_LANE_J = 9, + FSL_SRDS_B2_LANE_A = 16, + FSL_SRDS_B2_LANE_B = 17, + FSL_SRDS_B2_LANE_C = 18, + FSL_SRDS_B2_LANE_D = 19, + FSL_SRDS_B3_LANE_A = 20, + FSL_SRDS_B3_LANE_B = 21, + FSL_SRDS_B3_LANE_C = 22, + FSL_SRDS_B3_LANE_D = 23, +}; + +#ifdef CONFIG_FSL_CORENET +#define CONFIG_SYS_FSL_CORENET_CCM_OFFSET 0x0000 +#define CONFIG_SYS_MPC85xx_DDR_OFFSET 0x8000 +#define CONFIG_SYS_MPC85xx_DDR2_OFFSET 0x9000 +#define CONFIG_SYS_FSL_CORENET_CLK_OFFSET 0xE1000 +#define CONFIG_SYS_FSL_CORENET_RCPM_OFFSET 0xE2000 +#define CONFIG_SYS_FSL_CORENET_SERDES_OFFSET 0xEA000 +#define CONFIG_SYS_FSL_CPC_OFFSET 0x10000 +#define CONFIG_SYS_MPC85xx_DMA_OFFSET 0x100000 +#define CONFIG_SYS_MPC85xx_ESPI_OFFSET 0x110000 +#define CONFIG_SYS_MPC85xx_ESDHC_OFFSET 0x114000 +#define CONFIG_SYS_MPC85xx_LBC_OFFSET 0x124000 +#define CONFIG_SYS_MPC85xx_GPIO_OFFSET 0x130000 +#define CONFIG_SYS_MPC85xx_USB_OFFSET 0x210000 +#define CONFIG_SYS_FSL_CORENET_QMAN_OFFSET 0x318000 +#define CONFIG_SYS_FSL_CORENET_BMAN_OFFSET 0x31a000 +#else +#define CONFIG_SYS_MPC85xx_ECM_OFFSET 0x0000 +#define CONFIG_SYS_MPC85xx_DDR_OFFSET 0x2000 +#define CONFIG_SYS_MPC85xx_LBC_OFFSET 0x5000 +#define CONFIG_SYS_MPC85xx_DDR2_OFFSET 0x6000 +#define CONFIG_SYS_MPC85xx_ESPI_OFFSET 0x7000 +#define CONFIG_SYS_MPC85xx_PCIX_OFFSET 0x8000 +#define CONFIG_SYS_MPC85xx_PCIX2_OFFSET 0x9000 +#define CONFIG_SYS_MPC85xx_GPIO_OFFSET 0xF000 +#define CONFIG_SYS_MPC85xx_SATA1_OFFSET 0x18000 +#define CONFIG_SYS_MPC85xx_SATA2_OFFSET 0x19000 +#define CONFIG_SYS_MPC85xx_L2_OFFSET 0x20000 +#define CONFIG_SYS_MPC85xx_DMA_OFFSET 0x21000 +#define CONFIG_SYS_MPC85xx_USB_OFFSET 0x22000 +#ifdef CONFIG_TSECV2 +#define CONFIG_SYS_TSEC1_OFFSET 0xB0000 +#else +#define CONFIG_SYS_TSEC1_OFFSET 0x24000 +#endif +#define CONFIG_SYS_MDIO1_OFFSET 0x24000 +#define CONFIG_SYS_MPC85xx_ESDHC_OFFSET 0x2e000 +#define CONFIG_SYS_MPC85xx_SERDES2_OFFSET 0xE3100 +#define CONFIG_SYS_MPC85xx_SERDES1_OFFSET 0xE3000 +#define CONFIG_SYS_MPC85xx_CPM_OFFSET 0x80000 +#endif + +#define CONFIG_SYS_MPC85xx_PIC_OFFSET 0x40000 +#define CONFIG_SYS_MPC85xx_GUTS_OFFSET 0xE0000 + +#define CONFIG_SYS_FSL_CPC_ADDR \ + (CONFIG_SYS_CCSRBAR + CONFIG_SYS_FSL_CPC_OFFSET) +#define CONFIG_SYS_FSL_CORENET_QMAN_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_FSL_CORENET_QMAN_OFFSET) +#define CONFIG_SYS_FSL_CORENET_BMAN_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_FSL_CORENET_BMAN_OFFSET) +#define CONFIG_SYS_MPC85xx_GUTS_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_GUTS_OFFSET) +#define CONFIG_SYS_FSL_CORENET_CCM_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_FSL_CORENET_CCM_OFFSET) +#define CONFIG_SYS_FSL_CORENET_CLK_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_FSL_CORENET_CLK_OFFSET) +#define CONFIG_SYS_FSL_CORENET_RCPM_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_FSL_CORENET_RCPM_OFFSET) +#define CONFIG_SYS_MPC85xx_ECM_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_ECM_OFFSET) +#define CONFIG_SYS_MPC85xx_DDR_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_DDR_OFFSET) +#define CONFIG_SYS_MPC85xx_DDR2_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_DDR2_OFFSET) +#define CONFIG_SYS_MPC85xx_LBC_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_LBC_OFFSET) +#define CONFIG_SYS_MPC85xx_ESPI_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_ESPI_OFFSET) +#define CONFIG_SYS_MPC85xx_PCIX_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_PCIX_OFFSET) +#define CONFIG_SYS_MPC85xx_PCIX2_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_PCIX2_OFFSET) +#define CONFIG_SYS_MPC85xx_GPIO_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_GPIO_OFFSET) +#define CONFIG_SYS_MPC85xx_SATA1_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_SATA1_OFFSET) +#define CONFIG_SYS_MPC85xx_SATA2_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_SATA2_OFFSET) +#define CONFIG_SYS_MPC85xx_L2_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_L2_OFFSET) +#define CONFIG_SYS_MPC85xx_DMA_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_DMA_OFFSET) +#define CONFIG_SYS_MPC85xx_ESDHC_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_ESDHC_OFFSET) +#define CONFIG_SYS_MPC85xx_PIC_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_PIC_OFFSET) +#define CONFIG_SYS_MPC85xx_CPM_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_CPM_OFFSET) +#define CONFIG_SYS_MPC85xx_SERDES1_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_SERDES2_OFFSET) +#define CONFIG_SYS_MPC85xx_SERDES2_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_SERDES2_OFFSET) +#define CONFIG_SYS_FSL_CORENET_SERDES_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_FSL_CORENET_SERDES_OFFSET) +#define CONFIG_SYS_MPC85xx_USB_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_USB_OFFSET) + +#define TSEC_BASE_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_TSEC1_OFFSET) +#define MDIO_BASE_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MDIO1_OFFSET) + +#endif /*__IMMAP_85xx__*/ diff --git a/arch/ppc/include/asm/immap_86xx.h b/arch/ppc/include/asm/immap_86xx.h new file mode 100644 index 0000000..fd7acdb --- /dev/null +++ b/arch/ppc/include/asm/immap_86xx.h @@ -0,0 +1,1310 @@ +/* + * MPC86xx Internal Memory Map + * + * Copyright 2004 Freescale Semiconductor + * Jeff Brown (Jeffrey@freescale.com) + * Srikanth Srinivasan (srikanth.srinivasan@freescale.com) + * + */ + +#ifndef __IMMAP_86xx__ +#define __IMMAP_86xx__ + +#include <asm/types.h> +#include <asm/fsl_dma.h> +#include <asm/fsl_i2c.h> + +/* Local-Access Registers and MCM Registers(0x0000-0x2000) */ +typedef struct ccsr_local_mcm { + uint ccsrbar; /* 0x0 - Control Configuration Status Registers Base Address Register */ + char res1[4]; + uint altcbar; /* 0x8 - Alternate Configuration Base Address Register */ + char res2[4]; + uint altcar; /* 0x10 - Alternate Configuration Attribute Register */ + char res3[12]; + uint bptr; /* 0x20 - Boot Page Translation Register */ + char res4[3044]; + uint lawbar0; /* 0xc08 - Local Access Window 0 Base Address Register */ + char res5[4]; + uint lawar0; /* 0xc10 - Local Access Window 0 Attributes Register */ + char res6[20]; + uint lawbar1; /* 0xc28 - Local Access Window 1 Base Address Register */ + char res7[4]; + uint lawar1; /* 0xc30 - Local Access Window 1 Attributes Register */ + char res8[20]; + uint lawbar2; /* 0xc48 - Local Access Window 2 Base Address Register */ + char res9[4]; + uint lawar2; /* 0xc50 - Local Access Window 2 Attributes Register */ + char res10[20]; + uint lawbar3; /* 0xc68 - Local Access Window 3 Base Address Register */ + char res11[4]; + uint lawar3; /* 0xc70 - Local Access Window 3 Attributes Register */ + char res12[20]; + uint lawbar4; /* 0xc88 - Local Access Window 4 Base Address Register */ + char res13[4]; + uint lawar4; /* 0xc90 - Local Access Window 4 Attributes Register */ + char res14[20]; + uint lawbar5; /* 0xca8 - Local Access Window 5 Base Address Register */ + char res15[4]; + uint lawar5; /* 0xcb0 - Local Access Window 5 Attributes Register */ + char res16[20]; + uint lawbar6; /* 0xcc8 - Local Access Window 6 Base Address Register */ + char res17[4]; + uint lawar6; /* 0xcd0 - Local Access Window 6 Attributes Register */ + char res18[20]; + uint lawbar7; /* 0xce8 - Local Access Window 7 Base Address Register */ + char res19[4]; + uint lawar7; /* 0xcf0 - Local Access Window 7 Attributes Register */ + char res20[20]; + uint lawbar8; /* 0xd08 - Local Access Window 8 Base Address Register */ + char res21[4]; + uint lawar8; /* 0xd10 - Local Access Window 8 Attributes Register */ + char res22[20]; + uint lawbar9; /* 0xd28 - Local Access Window 9 Base Address Register */ + char res23[4]; + uint lawar9; /* 0xd30 - Local Access Window 9 Attributes Register */ + char res24[716]; + uint abcr; /* 0x1000 - MCM CCB Address Configuration Register */ + char res25[4]; + uint dbcr; /* 0x1008 - MCM MPX data bus Configuration Register */ + char res26[4]; + uint pcr; /* 0x1010 - MCM CCB Port Configuration Register */ + char res27[44]; + uint hpmr0; /* 0x1040 - MCM HPM Threshold Count Register 0 */ + uint hpmr1; /* 0x1044 - MCM HPM Threshold Count Register 1 */ + uint hpmr2; /* 0x1048 - MCM HPM Threshold Count Register 2 */ + uint hpmr3; /* 0x104c - MCM HPM Threshold Count Register 3 */ + char res28[16]; + uint hpmr4; /* 0x1060 - MCM HPM Threshold Count Register 4 */ + uint hpmr5; /* 0x1064 - MCM HPM Threshold Count Register 5 */ + uint hpmccr; /* 0x1068 - MCM HPM Cycle Count Register */ + char res29[3476]; + uint edr; /* 0x1e00 - MCM Error Detect Register */ + char res30[4]; + uint eer; /* 0x1e08 - MCM Error Enable Register */ + uint eatr; /* 0x1e0c - MCM Error Attributes Capture Register */ + uint eladr; /* 0x1e10 - MCM Error Low Address Capture Register */ + uint ehadr; /* 0x1e14 - MCM Error High Address Capture Register */ + char res31[488]; +} ccsr_local_mcm_t; + +/* DDR memory controller registers(0x2000-0x3000) and (0x6000-0x7000) */ + +typedef struct ccsr_ddr { + uint cs0_bnds; /* 0x2000 - DDR Chip Select 0 Memory Bounds */ + char res1[4]; + uint cs1_bnds; /* 0x2008 - DDR Chip Select 1 Memory Bounds */ + char res2[4]; + uint cs2_bnds; /* 0x2010 - DDR Chip Select 2 Memory Bounds */ + char res3[4]; + uint cs3_bnds; /* 0x2018 - DDR Chip Select 3 Memory Bounds */ + char res4[4]; + uint cs4_bnds; /* 0x2020 - DDR Chip Select 4 Memory Bounds */ + char res5[4]; + uint cs5_bnds; /* 0x2028 - DDR Chip Select 5 Memory Bounds */ + char res6[84]; + uint cs0_config; /* 0x2080 - DDR Chip Select Configuration */ + uint cs1_config; /* 0x2084 - DDR Chip Select Configuration */ + uint cs2_config; /* 0x2088 - DDR Chip Select Configuration */ + uint cs3_config; /* 0x208c - DDR Chip Select Configuration */ + uint cs4_config; /* 0x2090 - DDR Chip Select Configuration */ + uint cs5_config; /* 0x2094 - DDR Chip Select Configuration */ + char res7[104]; + uint timing_cfg_3; /* 0x2100 - DDR SDRAM Timing Configuration Register 3 */ + uint timing_cfg_0; /* 0x2104 - DDR SDRAM Timing Configuration Register 0 */ + uint timing_cfg_1; /* 0x2108 - DDR SDRAM Timing Configuration Register 1 */ + uint timing_cfg_2; /* 0x210c - DDR SDRAM Timing Configuration Register 2 */ + uint sdram_cfg; /* 0x2110 - DDR SDRAM Control Configuration 1 */ + uint sdram_cfg_2; /* 0x2114 - DDR SDRAM Control Configuration 2 */ + uint sdram_mode; /* 0x2118 - DDR SDRAM Mode Configuration 1 */ + uint sdram_mode_2; /* 0x211c - DDR SDRAM Mode Configuration 2 */ + uint sdram_mode_cntl; /* 0x2120 - DDR SDRAM Mode Control */ + uint sdram_interval; /* 0x2124 - DDR SDRAM Interval Configuration */ + uint sdram_data_init; /* 0x2128 - DDR SDRAM Data Initialization */ + char res8[4]; + uint sdram_clk_cntl; /* 0x2130 - DDR SDRAM Clock Control */ + char res9[12]; + uint sdram_ocd_cntl; /* 0x2140 - DDR SDRAM OCD Control */ + uint sdram_ocd_status; /* 0x2144 - DDR SDRAM OCD Status */ + uint init_addr; /* 0x2148 - DDR training initialzation address */ + uint init_ext_addr; /* 0x214C - DDR training initialzation extended address */ + char res10[2728]; + uint ip_rev1; /* 0x2BF8 - DDR IP Block Revision 1 */ + uint ip_rev2; /* 0x2BFC - DDR IP Block Revision 2 */ + char res11[512]; + uint data_err_inject_hi; /* 0x2e00 - DDR Memory Data Path Error Injection Mask High */ + uint data_err_inject_lo; /* 0x2e04 - DDR Memory Data Path Error Injection Mask Low */ + uint ecc_err_inject; /* 0x2e08 - DDR Memory Data Path Error Injection Mask ECC */ + char res12[20]; + uint capture_data_hi; /* 0x2e20 - DDR Memory Data Path Read Capture High */ + uint capture_data_lo; /* 0x2e24 - DDR Memory Data Path Read Capture Low */ + uint capture_ecc; /* 0x2e28 - DDR Memory Data Path Read Capture ECC */ + char res13[20]; + uint err_detect; /* 0x2e40 - DDR Memory Error Detect */ + uint err_disable; /* 0x2e44 - DDR Memory Error Disable */ + uint err_int_en; /* 0x2e48 - DDR Memory Error Interrupt Enable */ + uint capture_attributes; /* 0x2e4c - DDR Memory Error Attributes Capture */ + uint capture_address; /* 0x2e50 - DDR Memory Error Address Capture */ + uint capture_ext_address; /* 0x2e54 - DDR Memory Error Extended Address Capture */ + uint err_sbe; /* 0x2e58 - DDR Memory Single-Bit ECC Error Management */ + char res14[164]; + uint debug_1; /* 0x2f00 */ + uint debug_2; + uint debug_3; + uint debug_4; + uint debug_5; + char res15[236]; +} ccsr_ddr_t; + + +/* Daul I2C Registers(0x3000-0x4000) */ +typedef struct ccsr_i2c { + struct fsl_i2c i2c[2]; + u8 res[4096 - 2 * sizeof(struct fsl_i2c)]; +} ccsr_i2c_t; + +/* DUART Registers(0x4000-0x5000) */ +typedef struct ccsr_duart { + char res1[1280]; + u_char urbr1_uthr1_udlb1;/* 0x4500 - URBR1, UTHR1, UDLB1 with the same address offset of 0x04500 */ + u_char uier1_udmb1; /* 0x4501 - UIER1, UDMB1 with the same address offset of 0x04501 */ + u_char uiir1_ufcr1_uafr1;/* 0x4502 - UIIR1, UFCR1, UAFR1 with the same address offset of 0x04502 */ + u_char ulcr1; /* 0x4503 - UART1 Line Control Register */ + u_char umcr1; /* 0x4504 - UART1 Modem Control Register */ + u_char ulsr1; /* 0x4505 - UART1 Line Status Register */ + u_char umsr1; /* 0x4506 - UART1 Modem Status Register */ + u_char uscr1; /* 0x4507 - UART1 Scratch Register */ + char res2[8]; + u_char udsr1; /* 0x4510 - UART1 DMA Status Register */ + char res3[239]; + u_char urbr2_uthr2_udlb2;/* 0x4600 - URBR2, UTHR2, UDLB2 with the same address offset of 0x04600 */ + u_char uier2_udmb2; /* 0x4601 - UIER2, UDMB2 with the same address offset of 0x04601 */ + u_char uiir2_ufcr2_uafr2;/* 0x4602 - UIIR2, UFCR2, UAFR2 with the same address offset of 0x04602 */ + u_char ulcr2; /* 0x4603 - UART2 Line Control Register */ + u_char umcr2; /* 0x4604 - UART2 Modem Control Register */ + u_char ulsr2; /* 0x4605 - UART2 Line Status Register */ + u_char umsr2; /* 0x4606 - UART2 Modem Status Register */ + u_char uscr2; /* 0x4607 - UART2 Scratch Register */ + char res4[8]; + u_char udsr2; /* 0x4610 - UART2 DMA Status Register */ + char res5[2543]; +} ccsr_duart_t; + + +/* Local Bus Controller Registers(0x5000-0x6000) */ +typedef struct ccsr_lbc { + uint br0; /* 0x5000 - LBC Base Register 0 */ + uint or0; /* 0x5004 - LBC Options Register 0 */ + uint br1; /* 0x5008 - LBC Base Register 1 */ + uint or1; /* 0x500c - LBC Options Register 1 */ + uint br2; /* 0x5010 - LBC Base Register 2 */ + uint or2; /* 0x5014 - LBC Options Register 2 */ + uint br3; /* 0x5018 - LBC Base Register 3 */ + uint or3; /* 0x501c - LBC Options Register 3 */ + uint br4; /* 0x5020 - LBC Base Register 4 */ + uint or4; /* 0x5024 - LBC Options Register 4 */ + uint br5; /* 0x5028 - LBC Base Register 5 */ + uint or5; /* 0x502c - LBC Options Register 5 */ + uint br6; /* 0x5030 - LBC Base Register 6 */ + uint or6; /* 0x5034 - LBC Options Register 6 */ + uint br7; /* 0x5038 - LBC Base Register 7 */ + uint or7; /* 0x503c - LBC Options Register 7 */ + char res1[40]; + uint mar; /* 0x5068 - LBC UPM Address Register */ + char res2[4]; + uint mamr; /* 0x5070 - LBC UPMA Mode Register */ + uint mbmr; /* 0x5074 - LBC UPMB Mode Register */ + uint mcmr; /* 0x5078 - LBC UPMC Mode Register */ + char res3[8]; + uint mrtpr; /* 0x5084 - LBC Memory Refresh Timer Prescaler Register */ + uint mdr; /* 0x5088 - LBC UPM Data Register */ + char res4[8]; + uint lsdmr; /* 0x5094 - LBC SDRAM Mode Register */ + char res5[8]; + uint lurt; /* 0x50a0 - LBC UPM Refresh Timer */ + uint lsrt; /* 0x50a4 - LBC SDRAM Refresh Timer */ + char res6[8]; + uint ltesr; /* 0x50b0 - LBC Transfer Error Status Register */ + uint ltedr; /* 0x50b4 - LBC Transfer Error Disable Register */ + uint lteir; /* 0x50b8 - LBC Transfer Error Interrupt Register */ + uint lteatr; /* 0x50bc - LBC Transfer Error Attributes Register */ + uint ltear; /* 0x50c0 - LBC Transfer Error Address Register */ + char res7[12]; + uint lbcr; /* 0x50d0 - LBC Configuration Register */ + uint lcrr; /* 0x50d4 - LBC Clock Ratio Register */ + char res8[3880]; +} ccsr_lbc_t; + +/* PCI Express Registers(0x8000-0x9000) and (0x9000-0xA000) */ +typedef struct ccsr_pex { + uint cfg_addr; /* 0x8000 - PEX Configuration Address Register */ + uint cfg_data; /* 0x8004 - PEX Configuration Data Register */ + char res1[4]; + uint out_comp_to; /* 0x800C - PEX Outbound Completion Timeout Register */ + char res2[16]; + uint pme_msg_det; /* 0x8020 - PEX PME & message detect register */ + uint pme_msg_int_en; /* 0x8024 - PEX PME & message interrupt enable register */ + uint pme_msg_dis; /* 0x8028 - PEX PME & message disable register */ + uint pm_command; /* 0x802c - PEX PM Command register */ + char res3[3016]; + uint block_rev1; /* 0x8bf8 - PEX Block Revision register 1 */ + uint block_rev2; /* 0x8bfc - PEX Block Revision register 2 */ + uint potar0; /* 0x8c00 - PEX Outbound Transaction Address Register 0 */ + uint potear0; /* 0x8c04 - PEX Outbound Translation Extended Address Register 0 */ + char res4[8]; + uint powar0; /* 0x8c10 - PEX Outbound Window Attributes Register 0 */ + char res5[12]; + uint potar1; /* 0x8c20 - PEX Outbound Transaction Address Register 1 */ + uint potear1; /* 0x8c24 - PEX Outbound Translation Extended Address Register 1 */ + uint powbar1; /* 0x8c28 - PEX Outbound Window Base Address Register 1 */ + char res6[4]; + uint powar1; /* 0x8c30 - PEX Outbound Window Attributes Register 1 */ + char res7[12]; + uint potar2; /* 0x8c40 - PEX Outbound Transaction Address Register 2 */ + uint potear2; /* 0x8c44 - PEX Outbound Translation Extended Address Register 2 */ + uint powbar2; /* 0x8c48 - PEX Outbound Window Base Address Register 2 */ + char res8[4]; + uint powar2; /* 0x8c50 - PEX Outbound Window Attributes Register 2 */ + char res9[12]; + uint potar3; /* 0x8c60 - PEX Outbound Transaction Address Register 3 */ + uint potear3; /* 0x8c64 - PEX Outbound Translation Extended Address Register 3 */ + uint powbar3; /* 0x8c68 - PEX Outbound Window Base Address Register 3 */ + char res10[4]; + uint powar3; /* 0x8c70 - PEX Outbound Window Attributes Register 3 */ + char res11[12]; + uint potar4; /* 0x8c80 - PEX Outbound Transaction Address Register 4 */ + uint potear4; /* 0x8c84 - PEX Outbound Translation Extended Address Register 4 */ + uint powbar4; /* 0x8c88 - PEX Outbound Window Base Address Register 4 */ + char res12[4]; + uint powar4; /* 0x8c90 - PEX Outbound Window Attributes Register 4 */ + char res13[12]; + char res14[256]; + uint pitar3; /* 0x8da0 - PEX Inbound Translation Address Register 3 */ + char res15[4]; + uint piwbar3; /* 0x8da8 - PEX Inbound Window Base Address Register 3 */ + uint piwbear3; /* 0x8dac - PEX Inbound Window Base Extended Address Register 3 */ + uint piwar3; /* 0x8db0 - PEX Inbound Window Attributes Register 3 */ + char res16[12]; + uint pitar2; /* 0x8dc0 - PEX Inbound Translation Address Register 2 */ + char res17[4]; + uint piwbar2; /* 0x8dc8 - PEX Inbound Window Base Address Register 2 */ + uint piwbear2; /* 0x8dcc - PEX Inbound Window Base Extended Address Register 2 */ + uint piwar2; /* 0x8dd0 - PEX Inbound Window Attributes Register 2 */ + char res18[12]; + uint pitar1; /* 0x8de0 - PEX Inbound Translation Address Register 1 */ + char res19[4]; + uint piwbar1; /* 0x8de8 - PEX Inbound Window Base Address Register 1 */ + uint piwbear1; + uint piwar1; /* 0x8df0 - PEX Inbound Window Attributes Register 1 */ + char res20[12]; + uint pedr; /* 0x8e00 - PEX Error Detect Register */ + char res21[4]; + uint peer; /* 0x8e08 - PEX Error Interrupt Enable Register */ + char res22[4]; + uint pecdr; /* 0x8e10 - PEX Error Disable Register */ + char res23[12]; + uint peer_stat; /* 0x8e20 - PEX Error Capture Status Register */ + char res24[4]; + uint perr_cap0; /* 0x8e28 - PEX Error Capture Register 0 */ + uint perr_cap1; /* 0x8e2c - PEX Error Capture Register 1 */ + uint perr_cap2; /* 0x8e30 - PEX Error Capture Register 2 */ + uint perr_cap3; /* 0x8e34 - PEX Error Capture Register 3 */ + char res25[452]; + char res26[4]; +} ccsr_pex_t; + +/* Hyper Transport Register Block (0xA000-0xB000) */ +typedef struct ccsr_ht { + uint hcfg_addr; /* 0xa000 - HT Configuration Address register */ + uint hcfg_data; /* 0xa004 - HT Configuration Data register */ + char res1[3064]; + uint howtar0; /* 0xac00 - HT Outbound Window 0 Translation register */ + char res2[12]; + uint howar0; /* 0xac10 - HT Outbound Window 0 Attributes register */ + char res3[12]; + uint howtar1; /* 0xac20 - HT Outbound Window 1 Translation register */ + char res4[4]; + uint howbar1; /* 0xac28 - HT Outbound Window 1 Base Address register */ + char res5[4]; + uint howar1; /* 0xac30 - HT Outbound Window 1 Attributes register */ + char res6[12]; + uint howtar2; /* 0xac40 - HT Outbound Window 2 Translation register */ + char res7[4]; + uint howbar2; /* 0xac48 - HT Outbound Window 2 Base Address register */ + char res8[4]; + uint howar2; /* 0xac50 - HT Outbound Window 2 Attributes register */ + char res9[12]; + uint howtar3; /* 0xac60 - HT Outbound Window 3 Translation register */ + char res10[4]; + uint howbar3; /* 0xac68 - HT Outbound Window 3 Base Address register */ + char res11[4]; + uint howar3; /* 0xac70 - HT Outbound Window 3 Attributes register */ + char res12[12]; + uint howtar4; /* 0xac80 - HT Outbound Window 4 Translation register */ + char res13[4]; + uint howbar4; /* 0xac88 - HT Outbound Window 4 Base Address register */ + char res14[4]; + uint howar4; /* 0xac90 - HT Outbound Window 4 Attributes register */ + char res15[236]; + uint hiwtar4; /* 0xad80 - HT Inbound Window 4 Translation register */ + char res16[4]; + uint hiwbar4; /* 0xad88 - HT Inbound Window 4 Base Address register */ + char res17[4]; + uint hiwar4; /* 0xad90 - HT Inbound Window 4 Attributes register */ + char res18[12]; + uint hiwtar3; /* 0xada0 - HT Inbound Window 3 Translation register */ + char res19[4]; + uint hiwbar3; /* 0xada8 - HT Inbound Window 3 Base Address register */ + char res20[4]; + uint hiwar3; /* 0xadb0 - HT Inbound Window 3 Attributes register */ + char res21[12]; + uint hiwtar2; /* 0xadc0 - HT Inbound Window 2 Translation register */ + char res22[4]; + uint hiwbar2; /* 0xadc8 - HT Inbound Window 2 Base Address register */ + char res23[4]; + uint hiwar2; /* 0xadd0 - HT Inbound Window 2 Attributes register */ + char res24[12]; + uint hiwtar1; /* 0xade0 - HT Inbound Window 1 Translation register */ + char res25[4]; + uint hiwbar1; /* 0xade8 - HT Inbound Window 1 Base Address register */ + char res26[4]; + uint hiwar1; /* 0xadf0 - HT Inbound Window 1 Attributes register */ + char res27[12]; + uint hedr; /* 0xae00 - HT Error Detect register */ + char res28[4]; + uint heier; /* 0xae08 - HT Error Interrupt Enable register */ + char res29[4]; + uint hecdr; /* 0xae10 - HT Error Capture Disbale register */ + char res30[12]; + uint hecsr; /* 0xae20 - HT Error Capture Status register */ + char res31[4]; + uint hec0; /* 0xae28 - HT Error Capture 0 register */ + uint hec1; /* 0xae2c - HT Error Capture 1 register */ + uint hec2; /* 0xae30 - HT Error Capture 2 register */ + char res32[460]; +} ccsr_ht_t; + +/* DMA Registers(0x2_1000-0x2_2000) */ +typedef struct ccsr_dma { + char res1[256]; + struct fsl_dma dma[4]; + uint dgsr; /* 0x21300 - DMA General Status Register */ + char res2[3324]; +} ccsr_dma_t; + +/* tsec1-4: 24000-28000 */ +typedef struct ccsr_tsec { + uint id; /* 0x24000 - Controller ID Register */ + char res1[12]; + uint ievent; /* 0x24010 - Interrupt Event Register */ + uint imask; /* 0x24014 - Interrupt Mask Register */ + uint edis; /* 0x24018 - Error Disabled Register */ + char res2[4]; + uint ecntrl; /* 0x24020 - Ethernet Control Register */ + char res2_1[4]; + uint ptv; /* 0x24028 - Pause Time Value Register */ + uint dmactrl; /* 0x2402c - DMA Control Register */ + uint tbipa; /* 0x24030 - TBI PHY Address Register */ + char res3[88]; + uint fifo_tx_thr; /* 0x2408c - FIFO transmit threshold register */ + char res4[8]; + uint fifo_tx_starve; /* 0x24098 - FIFO transmit starve register */ + uint fifo_tx_starve_shutoff;/* 0x2409c - FIFO transmit starve shutoff register */ + char res4_1[4]; + uint fifo_rx_pause; /* 0x240a4 - FIFO receive pause threshold register */ + uint fifo_rx_alarm; /* 0x240a8 - FIFO receive alarm threshold register */ + char res5[84]; + uint tctrl; /* 0x24100 - Transmit Control Register */ + uint tstat; /* 0x24104 - Transmit Status Register */ + uint dfvlan; /* 0x24108 - Default VLAN control word */ + char res6[4]; + uint txic; /* 0x24110 - Transmit interrupt coalescing Register */ + uint tqueue; /* 0x24114 - Transmit Queue Control Register */ + char res7[40]; + uint tr03wt; /* 0x24140 - TxBD Rings 0-3 round-robin weightings */ + uint tw47wt; /* 0x24144 - TxBD Rings 4-7 round-robin weightings */ + char res8[52]; + uint tbdbph; /* 0x2417c - Transmit Data Buffer Pointer High Register */ + char res9[4]; + uint tbptr0; /* 0x24184 - Transmit Buffer Descriptor Pointer for Ring 0 */ + char res10[4]; + uint tbptr1; /* 0x2418C - Transmit Buffer Descriptor Pointer for Ring 1 */ + char res11[4]; + uint tbptr2; /* 0x24194 - Transmit Buffer Descriptor Pointer for Ring 2 */ + char res12[4]; + uint tbptr3; /* 0x2419C - Transmit Buffer Descriptor Pointer for Ring 3 */ + char res13[4]; + uint tbptr4; /* 0x241A4 - Transmit Buffer Descriptor Pointer for Ring 4 */ + char res14[4]; + uint tbptr5; /* 0x241AC - Transmit Buffer Descriptor Pointer for Ring 5 */ + char res15[4]; + uint tbptr6; /* 0x241B4 - Transmit Buffer Descriptor Pointer for Ring 6 */ + char res16[4]; + uint tbptr7; /* 0x241BC - Transmit Buffer Descriptor Pointer for Ring 7 */ + char res17[64]; + uint tbaseh; /* 0x24200 - Transmit Descriptor Base Address High Register */ + uint tbase0; /* 0x24204 - Transmit Descriptor Base Address Register of Ring 0 */ + char res18[4]; + uint tbase1; /* 0x2420C - Transmit Descriptor base address of Ring 1 */ + char res19[4]; + uint tbase2; /* 0x24214 - Transmit Descriptor base address of Ring 2 */ + char res20[4]; + uint tbase3; /* 0x2421C - Transmit Descriptor base address of Ring 3 */ + char res21[4]; + uint tbase4; /* 0x24224 - Transmit Descriptor base address of Ring 4 */ + char res22[4]; + uint tbase5; /* 0x2422C - Transmit Descriptor base address of Ring 5 */ + char res23[4]; + uint tbase6; /* 0x24234 - Transmit Descriptor base address of Ring 6 */ + char res24[4]; + uint tbase7; /* 0x2423C - Transmit Descriptor base address of Ring 7 */ + char res25[192]; + uint rctrl; /* 0x24300 - Receive Control Register */ + uint rstat; /* 0x24304 - Receive Status Register */ + char res26[8]; + uint rxic; /* 0x24310 - Receive Interrupt Coalecing Register */ + uint rqueue; /* 0x24314 - Receive queue control register */ + char res27[24]; + uint rbifx; /* 0x24330 - Receive bit field extract control Register */ + uint rqfar; /* 0x24334 - Receive queue filing table address Register */ + uint rqfcr; /* 0x24338 - Receive queue filing table control Register */ + uint rqfpr; /* 0x2433c - Receive queue filing table property Register */ + uint mrblr; /* 0x24340 - Maximum Receive Buffer Length Register */ + char res28[56]; + uint rbdbph; /* 0x2437C - Receive Data Buffer Pointer High */ + char res29[4]; + uint rbptr0; /* 0x24384 - Receive Buffer Descriptor Pointer for Ring 0 */ + char res30[4]; + uint rbptr1; /* 0x2438C - Receive Buffer Descriptor Pointer for Ring 1 */ + char res31[4]; + uint rbptr2; /* 0x24394 - Receive Buffer Descriptor Pointer for Ring 2 */ + char res32[4]; + uint rbptr3; /* 0x2439C - Receive Buffer Descriptor Pointer for Ring 3 */ + char res33[4]; + uint rbptr4; /* 0x243A4 - Receive Buffer Descriptor Pointer for Ring 4 */ + char res34[4]; + uint rbptr5; /* 0x243AC - Receive Buffer Descriptor Pointer for Ring 5 */ + char res35[4]; + uint rbptr6; /* 0x243B4 - Receive Buffer Descriptor Pointer for Ring 6 */ + char res36[4]; + uint rbptr7; /* 0x243BC - Receive Buffer Descriptor Pointer for Ring 7 */ + char res37[64]; + uint rbaseh; /* 0x24400 - Receive Descriptor Base Address High 0 */ + uint rbase0; /* 0x24404 - Receive Descriptor Base Address of Ring 0 */ + char res38[4]; + uint rbase1; /* 0x2440C - Receive Descriptor Base Address of Ring 1 */ + char res39[4]; + uint rbase2; /* 0x24414 - Receive Descriptor Base Address of Ring 2 */ + char res40[4]; + uint rbase3; /* 0x2441C - Receive Descriptor Base Address of Ring 3 */ + char res41[4]; + uint rbase4; /* 0x24424 - Receive Descriptor Base Address of Ring 4 */ + char res42[4]; + uint rbase5; /* 0x2442C - Receive Descriptor Base Address of Ring 5 */ + char res43[4]; + uint rbase6; /* 0x24434 - Receive Descriptor Base Address of Ring 6 */ + char res44[4]; + uint rbase7; /* 0x2443C - Receive Descriptor Base Address of Ring 7 */ + char res45[192]; + uint maccfg1; /* 0x24500 - MAC Configuration 1 Register */ + uint maccfg2; /* 0x24504 - MAC Configuration 2 Register */ + uint ipgifg; /* 0x24508 - Inter Packet Gap/Inter Frame Gap Register */ + uint hafdup; /* 0x2450c - Half Duplex Register */ + uint maxfrm; /* 0x24510 - Maximum Frame Length Register */ + char res46[12]; + uint miimcfg; /* 0x24520 - MII Management Configuration Register */ + uint miimcom; /* 0x24524 - MII Management Command Register */ + uint miimadd; /* 0x24528 - MII Management Address Register */ + uint miimcon; /* 0x2452c - MII Management Control Register */ + uint miimstat; /* 0x24530 - MII Management Status Register */ + uint miimind; /* 0x24534 - MII Management Indicator Register */ + uint ifctrl; /* 0x24538 - Interface Contrl Register */ + uint ifstat; /* 0x2453c - Interface Status Register */ + uint macstnaddr1; /* 0x24540 - Station Address Part 1 Register */ + uint macstnaddr2; /* 0x24544 - Station Address Part 2 Register */ + uint mac01addr1; /* 0x24548 - MAC exact match address 1, part 1 */ + uint mac01addr2; /* 0x2454C - MAC exact match address 1, part 2 */ + uint mac02addr1; /* 0x24550 - MAC exact match address 2, part 1 */ + uint mac02addr2; /* 0x24554 - MAC exact match address 2, part 2 */ + uint mac03addr1; /* 0x24558 - MAC exact match address 3, part 1 */ + uint mac03addr2; /* 0x2455C - MAC exact match address 3, part 2 */ + uint mac04addr1; /* 0x24560 - MAC exact match address 4, part 1 */ + uint mac04addr2; /* 0x24564 - MAC exact match address 4, part 2 */ + uint mac05addr1; /* 0x24568 - MAC exact match address 5, part 1 */ + uint mac05addr2; /* 0x2456C - MAC exact match address 5, part 2 */ + uint mac06addr1; /* 0x24570 - MAC exact match address 6, part 1 */ + uint mac06addr2; /* 0x24574 - MAC exact match address 6, part 2 */ + uint mac07addr1; /* 0x24578 - MAC exact match address 7, part 1 */ + uint mac07addr2; /* 0x2457C - MAC exact match address 7, part 2 */ + uint mac08addr1; /* 0x24580 - MAC exact match address 8, part 1 */ + uint mac08addr2; /* 0x24584 - MAC exact match address 8, part 2 */ + uint mac09addr1; /* 0x24588 - MAC exact match address 9, part 1 */ + uint mac09addr2; /* 0x2458C - MAC exact match address 9, part 2 */ + uint mac10addr1; /* 0x24590 - MAC exact match address 10, part 1 */ + uint mac10addr2; /* 0x24594 - MAC exact match address 10, part 2 */ + uint mac11addr1; /* 0x24598 - MAC exact match address 11, part 1 */ + uint mac11addr2; /* 0x2459C - MAC exact match address 11, part 2 */ + uint mac12addr1; /* 0x245A0 - MAC exact match address 12, part 1 */ + uint mac12addr2; /* 0x245A4 - MAC exact match address 12, part 2 */ + uint mac13addr1; /* 0x245A8 - MAC exact match address 13, part 1 */ + uint mac13addr2; /* 0x245AC - MAC exact match address 13, part 2 */ + uint mac14addr1; /* 0x245B0 - MAC exact match address 14, part 1 */ + uint mac14addr2; /* 0x245B4 - MAC exact match address 14, part 2 */ + uint mac15addr1; /* 0x245B8 - MAC exact match address 15, part 1 */ + uint mac15addr2; /* 0x245BC - MAC exact match address 15, part 2 */ + char res48[192]; + uint tr64; /* 0x24680 - Transmit and Receive 64-byte Frame Counter */ + uint tr127; /* 0x24684 - Transmit and Receive 65-127 byte Frame Counter */ + uint tr255; /* 0x24688 - Transmit and Receive 128-255 byte Frame Counter */ + uint tr511; /* 0x2468c - Transmit and Receive 256-511 byte Frame Counter */ + uint tr1k; /* 0x24690 - Transmit and Receive 512-1023 byte Frame Counter */ + uint trmax; /* 0x24694 - Transmit and Receive 1024-1518 byte Frame Counter */ + uint trmgv; /* 0x24698 - Transmit and Receive 1519-1522 byte Good VLAN Frame */ + uint rbyt; /* 0x2469c - Receive Byte Counter */ + uint rpkt; /* 0x246a0 - Receive Packet Counter */ + uint rfcs; /* 0x246a4 - Receive FCS Error Counter */ + uint rmca; /* 0x246a8 - Receive Multicast Packet Counter */ + uint rbca; /* 0x246ac - Receive Broadcast Packet Counter */ + uint rxcf; /* 0x246b0 - Receive Control Frame Packet Counter */ + uint rxpf; /* 0x246b4 - Receive Pause Frame Packet Counter */ + uint rxuo; /* 0x246b8 - Receive Unknown OP Code Counter */ + uint raln; /* 0x246bc - Receive Alignment Error Counter */ + uint rflr; /* 0x246c0 - Receive Frame Length Error Counter */ + uint rcde; /* 0x246c4 - Receive Code Error Counter */ + uint rcse; /* 0x246c8 - Receive Carrier Sense Error Counter */ + uint rund; /* 0x246cc - Receive Undersize Packet Counter */ + uint rovr; /* 0x246d0 - Receive Oversize Packet Counter */ + uint rfrg; /* 0x246d4 - Receive Fragments Counter */ + uint rjbr; /* 0x246d8 - Receive Jabber Counter */ + uint rdrp; /* 0x246dc - Receive Drop Counter */ + uint tbyt; /* 0x246e0 - Transmit Byte Counter Counter */ + uint tpkt; /* 0x246e4 - Transmit Packet Counter */ + uint tmca; /* 0x246e8 - Transmit Multicast Packet Counter */ + uint tbca; /* 0x246ec - Transmit Broadcast Packet Counter */ + uint txpf; /* 0x246f0 - Transmit Pause Control Frame Counter */ + uint tdfr; /* 0x246f4 - Transmit Deferral Packet Counter */ + uint tedf; /* 0x246f8 - Transmit Excessive Deferral Packet Counter */ + uint tscl; /* 0x246fc - Transmit Single Collision Packet Counter */ + uint tmcl; /* 0x24700 - Transmit Multiple Collision Packet Counter */ + uint tlcl; /* 0x24704 - Transmit Late Collision Packet Counter */ + uint txcl; /* 0x24708 - Transmit Excessive Collision Packet Counter */ + uint tncl; /* 0x2470c - Transmit Total Collision Counter */ + char res49[4]; + uint tdrp; /* 0x24714 - Transmit Drop Frame Counter */ + uint tjbr; /* 0x24718 - Transmit Jabber Frame Counter */ + uint tfcs; /* 0x2471c - Transmit FCS Error Counter */ + uint txcf; /* 0x24720 - Transmit Control Frame Counter */ + uint tovr; /* 0x24724 - Transmit Oversize Frame Counter */ + uint tund; /* 0x24728 - Transmit Undersize Frame Counter */ + uint tfrg; /* 0x2472c - Transmit Fragments Frame Counter */ + uint car1; /* 0x24730 - Carry Register One */ + uint car2; /* 0x24734 - Carry Register Two */ + uint cam1; /* 0x24738 - Carry Mask Register One */ + uint cam2; /* 0x2473c - Carry Mask Register Two */ + uint rrej; /* 0x24740 - Receive filer rejected packet counter */ + char res50[188]; + uint iaddr0; /* 0x24800 - Indivdual address register 0 */ + uint iaddr1; /* 0x24804 - Indivdual address register 1 */ + uint iaddr2; /* 0x24808 - Indivdual address register 2 */ + uint iaddr3; /* 0x2480c - Indivdual address register 3 */ + uint iaddr4; /* 0x24810 - Indivdual address register 4 */ + uint iaddr5; /* 0x24814 - Indivdual address register 5 */ + uint iaddr6; /* 0x24818 - Indivdual address register 6 */ + uint iaddr7; /* 0x2481c - Indivdual address register 7 */ + char res51[96]; + uint gaddr0; /* 0x24880 - Global address register 0 */ + uint gaddr1; /* 0x24884 - Global address register 1 */ + uint gaddr2; /* 0x24888 - Global address register 2 */ + uint gaddr3; /* 0x2488c - Global address register 3 */ + uint gaddr4; /* 0x24890 - Global address register 4 */ + uint gaddr5; /* 0x24894 - Global address register 5 */ + uint gaddr6; /* 0x24898 - Global address register 6 */ + uint gaddr7; /* 0x2489c - Global address register 7 */ + char res52[352]; + uint fifocfg; /* 0x24A00 - FIFO interface configuration register */ + char res53[500]; + uint attr; /* 0x24BF8 - DMA Attribute register */ + uint attreli; /* 0x24BFC - DMA Attribute extract length and index register */ + char res54[1024]; +} ccsr_tsec_t; + +/* PIC Registers(0x4_0000-0x6_1000) */ + +typedef struct ccsr_pic { + char res1[64]; + uint ipidr0; /* 0x40040 - Interprocessor Interrupt Dispatch Register 0 */ + char res2[12]; + uint ipidr1; /* 0x40050 - Interprocessor Interrupt Dispatch Register 1 */ + char res3[12]; + uint ipidr2; /* 0x40060 - Interprocessor Interrupt Dispatch Register 2 */ + char res4[12]; + uint ipidr3; /* 0x40070 - Interprocessor Interrupt Dispatch Register 3 */ + char res5[12]; + uint ctpr; /* 0x40080 - Current Task Priority Register */ + char res6[12]; + uint whoami; /* 0x40090 - Who Am I Register */ + char res7[12]; + uint iack; /* 0x400a0 - Interrupt Acknowledge Register */ + char res8[12]; + uint eoi; /* 0x400b0 - End Of Interrupt Register */ + char res9[3916]; + uint frr; /* 0x41000 - Feature Reporting Register */ + char res10[28]; + uint gcr; /* 0x41020 - Global Configuration Register */ +#define MPC86xx_PICGCR_RST 0x80000000 +#define MPC86xx_PICGCR_MODE 0x20000000 + char res11[92]; + uint vir; /* 0x41080 - Vendor Identification Register */ + char res12[12]; + uint pir; /* 0x41090 - Processor Initialization Register */ + char res13[12]; + uint ipivpr0; /* 0x410a0 - IPI Vector/Priority Register 0 */ + char res14[12]; + uint ipivpr1; /* 0x410b0 - IPI Vector/Priority Register 1 */ + char res15[12]; + uint ipivpr2; /* 0x410c0 - IPI Vector/Priority Register 2 */ + char res16[12]; + uint ipivpr3; /* 0x410d0 - IPI Vector/Priority Register 3 */ + char res17[12]; + uint svr; /* 0x410e0 - Spurious Vector Register */ + char res18[12]; + uint tfrr; /* 0x410f0 - Timer Frequency Reporting Register */ + char res19[12]; + uint gtccr0; /* 0x41100 - Global Timer Current Count Register 0 */ + char res20[12]; + uint gtbcr0; /* 0x41110 - Global Timer Base Count Register 0 */ + char res21[12]; + uint gtvpr0; /* 0x41120 - Global Timer Vector/Priority Register 0 */ + char res22[12]; + uint gtdr0; /* 0x41130 - Global Timer Destination Register 0 */ + char res23[12]; + uint gtccr1; /* 0x41140 - Global Timer Current Count Register 1 */ + char res24[12]; + uint gtbcr1; /* 0x41150 - Global Timer Base Count Register 1 */ + char res25[12]; + uint gtvpr1; /* 0x41160 - Global Timer Vector/Priority Register 1 */ + char res26[12]; + uint gtdr1; /* 0x41170 - Global Timer Destination Register 1 */ + char res27[12]; + uint gtccr2; /* 0x41180 - Global Timer Current Count Register 2 */ + char res28[12]; + uint gtbcr2; /* 0x41190 - Global Timer Base Count Register 2 */ + char res29[12]; + uint gtvpr2; /* 0x411a0 - Global Timer Vector/Priority Register 2 */ + char res30[12]; + uint gtdr2; /* 0x411b0 - Global Timer Destination Register 2 */ + char res31[12]; + uint gtccr3; /* 0x411c0 - Global Timer Current Count Register 3 */ + char res32[12]; + uint gtbcr3; /* 0x411d0 - Global Timer Base Count Register 3 */ + char res33[12]; + uint gtvpr3; /* 0x411e0 - Global Timer Vector/Priority Register 3 */ + char res34[12]; + uint gtdr3; /* 0x411f0 - Global Timer Destination Register 3 */ + char res35[268]; + uint tcr; /* 0x41300 - Timer Control Register */ + char res36[12]; + uint irqsr0; /* 0x41310 - IRQ_OUT Summary Register 0 */ + char res37[12]; + uint irqsr1; /* 0x41320 - IRQ_OUT Summary Register 1 */ + char res38[12]; + uint cisr0; /* 0x41330 - Critical Interrupt Summary Register 0 */ + char res39[12]; + uint cisr1; /* 0x41340 - Critical Interrupt Summary Register 1 */ + char res40[12]; + uint pm0mr0; /* 0x41350 - Performance monitor 0 mask register 0 */ + char res41[12]; + uint pm0mr1; /* 0x41360 - Performance monitor 0 mask register 1 */ + char res42[12]; + uint pm1mr0; /* 0x41370 - Performance monitor 1 mask register 0 */ + char res43[12]; + uint pm1mr1; /* 0x41380 - Performance monitor 1 mask register 1 */ + char res44[12]; + uint pm2mr0; /* 0x41390 - Performance monitor 2 mask register 0 */ + char res45[12]; + uint pm2mr1; /* 0x413A0 - Performance monitor 2 mask register 1 */ + char res46[12]; + uint pm3mr0; /* 0x413B0 - Performance monitor 3 mask register 0 */ + char res47[12]; + uint pm3mr1; /* 0x413C0 - Performance monitor 3 mask register 1 */ + char res48[60]; + uint msgr0; /* 0x41400 - Message Register 0 */ + char res49[12]; + uint msgr1; /* 0x41410 - Message Register 1 */ + char res50[12]; + uint msgr2; /* 0x41420 - Message Register 2 */ + char res51[12]; + uint msgr3; /* 0x41430 - Message Register 3 */ + char res52[204]; + uint mer; /* 0x41500 - Message Enable Register */ + char res53[12]; + uint msr; /* 0x41510 - Message Status Register */ + char res54[60140]; + uint eivpr0; /* 0x50000 - External Interrupt Vector/Priority Register 0 */ + char res55[12]; + uint eidr0; /* 0x50010 - External Interrupt Destination Register 0 */ + char res56[12]; + uint eivpr1; /* 0x50020 - External Interrupt Vector/Priority Register 1 */ + char res57[12]; + uint eidr1; /* 0x50030 - External Interrupt Destination Register 1 */ + char res58[12]; + uint eivpr2; /* 0x50040 - External Interrupt Vector/Priority Register 2 */ + char res59[12]; + uint eidr2; /* 0x50050 - External Interrupt Destination Register 2 */ + char res60[12]; + uint eivpr3; /* 0x50060 - External Interrupt Vector/Priority Register 3 */ + char res61[12]; + uint eidr3; /* 0x50070 - External Interrupt Destination Register 3 */ + char res62[12]; + uint eivpr4; /* 0x50080 - External Interrupt Vector/Priority Register 4 */ + char res63[12]; + uint eidr4; /* 0x50090 - External Interrupt Destination Register 4 */ + char res64[12]; + uint eivpr5; /* 0x500a0 - External Interrupt Vector/Priority Register 5 */ + char res65[12]; + uint eidr5; /* 0x500b0 - External Interrupt Destination Register 5 */ + char res66[12]; + uint eivpr6; /* 0x500c0 - External Interrupt Vector/Priority Register 6 */ + char res67[12]; + uint eidr6; /* 0x500d0 - External Interrupt Destination Register 6 */ + char res68[12]; + uint eivpr7; /* 0x500e0 - External Interrupt Vector/Priority Register 7 */ + char res69[12]; + uint eidr7; /* 0x500f0 - External Interrupt Destination Register 7 */ + char res70[12]; + uint eivpr8; /* 0x50100 - External Interrupt Vector/Priority Register 8 */ + char res71[12]; + uint eidr8; /* 0x50110 - External Interrupt Destination Register 8 */ + char res72[12]; + uint eivpr9; /* 0x50120 - External Interrupt Vector/Priority Register 9 */ + char res73[12]; + uint eidr9; /* 0x50130 - External Interrupt Destination Register 9 */ + char res74[12]; + uint eivpr10; /* 0x50140 - External Interrupt Vector/Priority Register 10 */ + char res75[12]; + uint eidr10; /* 0x50150 - External Interrupt Destination Register 10 */ + char res76[12]; + uint eivpr11; /* 0x50160 - External Interrupt Vector/Priority Register 11 */ + char res77[12]; + uint eidr11; /* 0x50170 - External Interrupt Destination Register 11 */ + char res78[140]; + uint iivpr0; /* 0x50200 - Internal Interrupt Vector/Priority Register 0 */ + char res79[12]; + uint iidr0; /* 0x50210 - Internal Interrupt Destination Register 0 */ + char res80[12]; + uint iivpr1; /* 0x50220 - Internal Interrupt Vector/Priority Register 1 */ + char res81[12]; + uint iidr1; /* 0x50230 - Internal Interrupt Destination Register 1 */ + char res82[12]; + uint iivpr2; /* 0x50240 - Internal Interrupt Vector/Priority Register 2 */ + char res83[12]; + uint iidr2; /* 0x50250 - Internal Interrupt Destination Register 2 */ + char res84[12]; + uint iivpr3; /* 0x50260 - Internal Interrupt Vector/Priority Register 3 */ + char res85[12]; + uint iidr3; /* 0x50270 - Internal Interrupt Destination Register 3 */ + char res86[12]; + uint iivpr4; /* 0x50280 - Internal Interrupt Vector/Priority Register 4 */ + char res87[12]; + uint iidr4; /* 0x50290 - Internal Interrupt Destination Register 4 */ + char res88[12]; + uint iivpr5; /* 0x502a0 - Internal Interrupt Vector/Priority Register 5 */ + char res89[12]; + uint iidr5; /* 0x502b0 - Internal Interrupt Destination Register 5 */ + char res90[12]; + uint iivpr6; /* 0x502c0 - Internal Interrupt Vector/Priority Register 6 */ + char res91[12]; + uint iidr6; /* 0x502d0 - Internal Interrupt Destination Register 6 */ + char res92[12]; + uint iivpr7; /* 0x502e0 - Internal Interrupt Vector/Priority Register 7 */ + char res93[12]; + uint iidr7; /* 0x502f0 - Internal Interrupt Destination Register 7 */ + char res94[12]; + uint iivpr8; /* 0x50300 - Internal Interrupt Vector/Priority Register 8 */ + char res95[12]; + uint iidr8; /* 0x50310 - Internal Interrupt Destination Register 8 */ + char res96[12]; + uint iivpr9; /* 0x50320 - Internal Interrupt Vector/Priority Register 9 */ + char res97[12]; + uint iidr9; /* 0x50330 - Internal Interrupt Destination Register 9 */ + char res98[12]; + uint iivpr10; /* 0x50340 - Internal Interrupt Vector/Priority Register 10 */ + char res99[12]; + uint iidr10; /* 0x50350 - Internal Interrupt Destination Register 10 */ + char res100[12]; + uint iivpr11; /* 0x50360 - Internal Interrupt Vector/Priority Register 11 */ + char res101[12]; + uint iidr11; /* 0x50370 - Internal Interrupt Destination Register 11 */ + char res102[12]; + uint iivpr12; /* 0x50380 - Internal Interrupt Vector/Priority Register 12 */ + char res103[12]; + uint iidr12; /* 0x50390 - Internal Interrupt Destination Register 12 */ + char res104[12]; + uint iivpr13; /* 0x503a0 - Internal Interrupt Vector/Priority Register 13 */ + char res105[12]; + uint iidr13; /* 0x503b0 - Internal Interrupt Destination Register 13 */ + char res106[12]; + uint iivpr14; /* 0x503c0 - Internal Interrupt Vector/Priority Register 14 */ + char res107[12]; + uint iidr14; /* 0x503d0 - Internal Interrupt Destination Register 14 */ + char res108[12]; + uint iivpr15; /* 0x503e0 - Internal Interrupt Vector/Priority Register 15 */ + char res109[12]; + uint iidr15; /* 0x503f0 - Internal Interrupt Destination Register 15 */ + char res110[12]; + uint iivpr16; /* 0x50400 - Internal Interrupt Vector/Priority Register 16 */ + char res111[12]; + uint iidr16; /* 0x50410 - Internal Interrupt Destination Register 16 */ + char res112[12]; + uint iivpr17; /* 0x50420 - Internal Interrupt Vector/Priority Register 17 */ + char res113[12]; + uint iidr17; /* 0x50430 - Internal Interrupt Destination Register 17 */ + char res114[12]; + uint iivpr18; /* 0x50440 - Internal Interrupt Vector/Priority Register 18 */ + char res115[12]; + uint iidr18; /* 0x50450 - Internal Interrupt Destination Register 18 */ + char res116[12]; + uint iivpr19; /* 0x50460 - Internal Interrupt Vector/Priority Register 19 */ + char res117[12]; + uint iidr19; /* 0x50470 - Internal Interrupt Destination Register 19 */ + char res118[12]; + uint iivpr20; /* 0x50480 - Internal Interrupt Vector/Priority Register 20 */ + char res119[12]; + uint iidr20; /* 0x50490 - Internal Interrupt Destination Register 20 */ + char res120[12]; + uint iivpr21; /* 0x504a0 - Internal Interrupt Vector/Priority Register 21 */ + char res121[12]; + uint iidr21; /* 0x504b0 - Internal Interrupt Destination Register 21 */ + char res122[12]; + uint iivpr22; /* 0x504c0 - Internal Interrupt Vector/Priority Register 22 */ + char res123[12]; + uint iidr22; /* 0x504d0 - Internal Interrupt Destination Register 22 */ + char res124[12]; + uint iivpr23; /* 0x504e0 - Internal Interrupt Vector/Priority Register 23 */ + char res125[12]; + uint iidr23; /* 0x504f0 - Internal Interrupt Destination Register 23 */ + char res126[12]; + uint iivpr24; /* 0x50500 - Internal Interrupt Vector/Priority Register 24 */ + char res127[12]; + uint iidr24; /* 0x50510 - Internal Interrupt Destination Register 24 */ + char res128[12]; + uint iivpr25; /* 0x50520 - Internal Interrupt Vector/Priority Register 25 */ + char res129[12]; + uint iidr25; /* 0x50530 - Internal Interrupt Destination Register 25 */ + char res130[12]; + uint iivpr26; /* 0x50540 - Internal Interrupt Vector/Priority Register 26 */ + char res131[12]; + uint iidr26; /* 0x50550 - Internal Interrupt Destination Register 26 */ + char res132[12]; + uint iivpr27; /* 0x50560 - Internal Interrupt Vector/Priority Register 27 */ + char res133[12]; + uint iidr27; /* 0x50570 - Internal Interrupt Destination Register 27 */ + char res134[12]; + uint iivpr28; /* 0x50580 - Internal Interrupt Vector/Priority Register 28 */ + char res135[12]; + uint iidr28; /* 0x50590 - Internal Interrupt Destination Register 28 */ + char res136[12]; + uint iivpr29; /* 0x505a0 - Internal Interrupt Vector/Priority Register 29 */ + char res137[12]; + uint iidr29; /* 0x505b0 - Internal Interrupt Destination Register 29 */ + char res138[12]; + uint iivpr30; /* 0x505c0 - Internal Interrupt Vector/Priority Register 30 */ + char res139[12]; + uint iidr30; /* 0x505d0 - Internal Interrupt Destination Register 30 */ + char res140[12]; + uint iivpr31; /* 0x505e0 - Internal Interrupt Vector/Priority Register 31 */ + char res141[12]; + uint iidr31; /* 0x505f0 - Internal Interrupt Destination Register 31 */ + char res142[4108]; + uint mivpr0; /* 0x51600 - Messaging Interrupt Vector/Priority Register 0 */ + char res143[12]; + uint midr0; /* 0x51610 - Messaging Interrupt Destination Register 0 */ + char res144[12]; + uint mivpr1; /* 0x51620 - Messaging Interrupt Vector/Priority Register 1 */ + char res145[12]; + uint midr1; /* 0x51630 - Messaging Interrupt Destination Register 1 */ + char res146[12]; + uint mivpr2; /* 0x51640 - Messaging Interrupt Vector/Priority Register 2 */ + char res147[12]; + uint midr2; /* 0x51650 - Messaging Interrupt Destination Register 2 */ + char res148[12]; + uint mivpr3; /* 0x51660 - Messaging Interrupt Vector/Priority Register 3 */ + char res149[12]; + uint midr3; /* 0x51670 - Messaging Interrupt Destination Register 3 */ + char res150[59852]; + uint ipi0dr0; /* 0x60040 - Processor 0 Interprocessor Interrupt Dispatch Register 0 */ + char res151[12]; + uint ipi0dr1; /* 0x60050 - Processor 0 Interprocessor Interrupt Dispatch Register 1 */ + char res152[12]; + uint ipi0dr2; /* 0x60060 - Processor 0 Interprocessor Interrupt Dispatch Register 2 */ + char res153[12]; + uint ipi0dr3; /* 0x60070 - Processor 0 Interprocessor Interrupt Dispatch Register 3 */ + char res154[12]; + uint ctpr0; /* 0x60080 - Current Task Priority Register for Processor 0 */ + char res155[12]; + uint whoami0; /* 0x60090 - Who Am I Register for Processor 0 */ + char res156[12]; + uint iack0; /* 0x600a0 - Interrupt Acknowledge Register for Processor 0 */ + char res157[12]; + uint eoi0; /* 0x600b0 - End Of Interrupt Register for Processor 0 */ + char res158[3916]; +} ccsr_pic_t; + +/* RapidIO Registers(0xc_0000-0xe_0000) */ + +typedef struct ccsr_rio { + uint didcar; /* 0xc0000 - Device Identity Capability Register */ + uint dicar; /* 0xc0004 - Device Information Capability Register */ + uint aidcar; /* 0xc0008 - Assembly Identity Capability Register */ + uint aicar; /* 0xc000c - Assembly Information Capability Register */ + uint pefcar; /* 0xc0010 - Processing Element Features Capability Register */ + uint spicar; /* 0xc0014 - Switch Port Information Capability Register */ + uint socar; /* 0xc0018 - Source Operations Capability Register */ + uint docar; /* 0xc001c - Destination Operations Capability Register */ + char res1[32]; + uint msr; /* 0xc0040 - Mailbox Command And Status Register */ + uint pwdcsr; /* 0xc0044 - Port-Write and Doorbell Command And Status Register */ + char res2[4]; + uint pellccsr; /* 0xc004c - Processing Element Logic Layer Control Command and Status Register */ + char res3[12]; + uint lcsbacsr; /* 0xc005c - Local Configuration Space Base Address Command and Status Register */ + uint bdidcsr; /* 0xc0060 - Base Device ID Command and Status Register */ + char res4[4]; + uint hbdidlcsr; /* 0xc0068 - Host Base Device ID Lock Command and Status Register */ + uint ctcsr; /* 0xc006c - Component Tag Command and Status Register */ + char res5[144]; + uint pmbh0csr; /* 0xc0100 - 8/16 LP-LVDS Port Maintenance Block Header 0 Command and Status Register */ + char res6[28]; + uint pltoccsr; /* 0xc0120 - Port Link Time-out Control Command and Status Register */ + uint prtoccsr; /* 0xc0124 - Port Response Time-out Control Command and Status Register */ + char res7[20]; + uint pgccsr; /* 0xc013c - Port General Command and Status Register */ + uint plmreqcsr; /* 0xc0140 - Port Link Maintenance Request Command and Status Register */ + uint plmrespcsr; /* 0xc0144 - Port Link Maintenance Response Command and Status Register */ + uint plascsr; /* 0xc0148 - Port Local Ackid Status Command and Status Register */ + char res8[12]; + uint pescsr; /* 0xc0158 - Port Error and Status Command and Status Register */ + uint pccsr; /* 0xc015c - Port Control Command and Status Register */ + char res9[1184]; + uint erbh; /* 0xc0600 - Error Reporting Block Header Register */ + char res10[4]; + uint ltledcsr; /* 0xc0608 - Logical/Transport layer error detect status register */ + uint ltleecsr; /* 0xc060c - Logical/Transport layer error enable register */ + char res11[4]; + uint ltlaccsr; /* 0xc0614 - Logical/Transport layer addresss capture register */ + uint ltldidccsr; /* 0xc0618 - Logical/Transport layer device ID capture register */ + uint ltlcccsr; /* 0xc061c - Logical/Transport layer control capture register */ + char res12[32]; + uint edcsr; /* 0xc0640 - Port 0 error detect status register */ + uint erecsr; /* 0xc0644 - Port 0 error rate enable status register */ + uint ecacsr; /* 0xc0648 - Port 0 error capture attributes register */ + uint pcseccsr0; /* 0xc064c - Port 0 packet/control symbol error capture register 0 */ + uint peccsr1; /* 0xc0650 - Port 0 error capture command and status register 1 */ + uint peccsr2; /* 0xc0654 - Port 0 error capture command and status register 2 */ + uint peccsr3; /* 0xc0658 - Port 0 error capture command and status register 3 */ + char res13[12]; + uint ercsr; /* 0xc0668 - Port 0 error rate command and status register */ + uint ertcsr; /* 0xc066C - Port 0 error rate threshold status register*/ + char res14[63892]; + uint llcr; /* 0xd0004 - Logical Layer Configuration Register */ + char res15[12]; + uint epwisr; /* 0xd0010 - Error / Port-Write Interrupt Status Register */ + char res16[12]; + uint lretcr; /* 0xd0020 - Logical Retry Error Threshold Configuration Register */ + char res17[92]; + uint pretcr; /* 0xd0080 - Physical Retry Erorr Threshold Configuration Register */ + char res18[124]; + uint adidcsr; /* 0xd0100 - Port 0 Alt. Device ID Command and Status Register */ + char res19[28]; + uint ptaacr; /* 0xd0120 - Port 0 Pass-Through/Accept-All Configuration Register */ + char res20[12]; + uint iecsr; /* 0xd0130 - Port 0 Implementation Error Status Register */ + char res21[12]; + uint pcr; /* 0xd0140 - Port 0 Phsyical Configuration RegisterRegister */ + char res22[20]; + uint slcsr; /* 0xd0158 - Port 0 Serial Link Command and Status Register */ + char res23[4]; + uint sleir; /* 0xd0160 - Port 0 Serial Link Error Injection Register */ + char res24[2716]; + uint rowtar0; /* 0xd0c00 - RapidIO Outbound Window Translation Address Register 0 */ + uint rowtear0; /* 0xd0c04 - RapidIO Outbound Window Translation Ext. Address Register 0 */ + char res25[8]; + uint rowar0; /* 0xd0c10 - RapidIO Outbound Attributes Register 0 */ + char res26[12]; + uint rowtar1; /* 0xd0c20 - RapidIO Outbound Window Translation Address Register 1 */ + uint rowtear1; /* 0xd0c24 - RapidIO Outbound Window Translation Ext. Address Register 1 */ + uint rowbar1; /* 0xd0c28 - RapidIO Outbound Window Base Address Register 1 */ + char res27[4]; + uint rowar1; /* 0xd0c30 - RapidIO Outbound Attributes Register 1 */ + uint rows1r1; /* 0xd0c34 - RapidIO Outbound Window Segment 1 Register 1 */ + uint rows2r1; /* 0xd0c38 - RapidIO Outbound Window Segment 2 Register 1 */ + uint rows3r1; /* 0xd0c3c - RapidIO Outbound Window Segment 3 Register 1 */ + uint rowtar2; /* 0xd0c40 - RapidIO Outbound Window Translation Address Register 2 */ + uint rowtear2; /* 0xd0c44 - RapidIO Outbound Window Translation Ext. Address Register 2 */ + uint rowbar2; /* 0xd0c48 - RapidIO Outbound Window Base Address Register 2 */ + char res28[4]; + uint rowar2; /* 0xd0c50 - RapidIO Outbound Attributes Register 2 */ + uint rows1r2; /* 0xd0c54 - RapidIO Outbound Window Segment 1 Register 2 */ + uint rows2r2; /* 0xd0c58 - RapidIO Outbound Window Segment 2 Register 2 */ + uint rows3r2; /* 0xd0c5c - RapidIO Outbound Window Segment 3 Register 2 */ + uint rowtar3; /* 0xd0c60 - RapidIO Outbound Window Translation Address Register 3 */ + uint rowtear3; /* 0xd0c64 - RapidIO Outbound Window Translation Ext. Address Register 3 */ + uint rowbar3; /* 0xd0c68 - RapidIO Outbound Window Base Address Register 3 */ + char res29[4]; + uint rowar3; /* 0xd0c70 - RapidIO Outbound Attributes Register 3 */ + uint rows1r3; /* 0xd0c74 - RapidIO Outbound Window Segment 1 Register 3 */ + uint rows2r3; /* 0xd0c78 - RapidIO Outbound Window Segment 2 Register 3 */ + uint rows3r3; /* 0xd0c7c - RapidIO Outbound Window Segment 3 Register 3 */ + uint rowtar4; /* 0xd0c80 - RapidIO Outbound Window Translation Address Register 4 */ + uint rowtear4; /* 0xd0c84 - RapidIO Outbound Window Translation Ext. Address Register 4 */ + uint rowbar4; /* 0xd0c88 - RapidIO Outbound Window Base Address Register 4 */ + char res30[4]; + uint rowar4; /* 0xd0c90 - RapidIO Outbound Attributes Register 4 */ + uint rows1r4; /* 0xd0c94 - RapidIO Outbound Window Segment 1 Register 4 */ + uint rows2r4; /* 0xd0c98 - RapidIO Outbound Window Segment 2 Register 4 */ + uint rows3r4; /* 0xd0c9c - RapidIO Outbound Window Segment 3 Register 4 */ + uint rowtar5; /* 0xd0ca0 - RapidIO Outbound Window Translation Address Register 5 */ + uint rowtear5; /* 0xd0ca4 - RapidIO Outbound Window Translation Ext. Address Register 5 */ + uint rowbar5; /* 0xd0ca8 - RapidIO Outbound Window Base Address Register 5 */ + char res31[4]; + uint rowar5; /* 0xd0cb0 - RapidIO Outbound Attributes Register 5 */ + uint rows1r5; /* 0xd0cb4 - RapidIO Outbound Window Segment 1 Register 5 */ + uint rows2r5; /* 0xd0cb8 - RapidIO Outbound Window Segment 2 Register 5 */ + uint rows3r5; /* 0xd0cbc - RapidIO Outbound Window Segment 3 Register 5 */ + uint rowtar6; /* 0xd0cc0 - RapidIO Outbound Window Translation Address Register 6 */ + uint rowtear6; /* 0xd0cc4 - RapidIO Outbound Window Translation Ext. Address Register 6 */ + uint rowbar6; /* 0xd0cc8 - RapidIO Outbound Window Base Address Register 6 */ + char res32[4]; + uint rowar6; /* 0xd0cd0 - RapidIO Outbound Attributes Register 6 */ + uint rows1r6; /* 0xd0cd4 - RapidIO Outbound Window Segment 1 Register 6 */ + uint rows2r6; /* 0xd0cd8 - RapidIO Outbound Window Segment 2 Register 6 */ + uint rows3r6; /* 0xd0cdc - RapidIO Outbound Window Segment 3 Register 6 */ + uint rowtar7; /* 0xd0ce0 - RapidIO Outbound Window Translation Address Register 7 */ + uint rowtear7; /* 0xd0ce4 - RapidIO Outbound Window Translation Ext. Address Register 7 */ + uint rowbar7; /* 0xd0ce8 - RapidIO Outbound Window Base Address Register 7 */ + char res33[4]; + uint rowar7; /* 0xd0cf0 - RapidIO Outbound Attributes Register 7 */ + uint rows1r7; /* 0xd0cf4 - RapidIO Outbound Window Segment 1 Register 7 */ + uint rows2r7; /* 0xd0cf8 - RapidIO Outbound Window Segment 2 Register 7 */ + uint rows3r7; /* 0xd0cfc - RapidIO Outbound Window Segment 3 Register 7 */ + uint rowtar8; /* 0xd0d00 - RapidIO Outbound Window Translation Address Register 8 */ + uint rowtear8; /* 0xd0d04 - RapidIO Outbound Window Translation Ext. Address Register 8 */ + uint rowbar8; /* 0xd0d08 - RapidIO Outbound Window Base Address Register 8 */ + char res34[4]; + uint rowar8; /* 0xd0d10 - RapidIO Outbound Attributes Register 8 */ + uint rows1r8; /* 0xd0d14 - RapidIO Outbound Window Segment 1 Register 8 */ + uint rows2r8; /* 0xd0d18 - RapidIO Outbound Window Segment 2 Register 8 */ + uint rows3r8; /* 0xd0d1c - RapidIO Outbound Window Segment 3 Register 8 */ + char res35[64]; + uint riwtar4; /* 0xd0d60 - RapidIO Inbound Window Translation Address Register 4 */ + uint riwbar4; /* 0xd0d68 - RapidIO Inbound Window Base Address Register 4 */ + char res36[4]; + uint riwar4; /* 0xd0d70 - RapidIO Inbound Attributes Register 4 */ + char res37[12]; + uint riwtar3; /* 0xd0d80 - RapidIO Inbound Window Translation Address Register 3 */ + char res38[4]; + uint riwbar3; /* 0xd0d88 - RapidIO Inbound Window Base Address Register 3 */ + char res39[4]; + uint riwar3; /* 0xd0d90 - RapidIO Inbound Attributes Register 3 */ + char res40[12]; + uint riwtar2; /* 0xd0da0 - RapidIO Inbound Window Translation Address Register 2 */ + char res41[4]; + uint riwbar2; /* 0xd0da8 - RapidIO Inbound Window Base Address Register 2 */ + char res42[4]; + uint riwar2; /* 0xd0db0 - RapidIO Inbound Attributes Register 2 */ + char res43[12]; + uint riwtar1; /* 0xd0dc0 - RapidIO Inbound Window Translation Address Register 1 */ + char res44[4]; + uint riwbar1; /* 0xd0dc8 - RapidIO Inbound Window Base Address Register 1 */ + char res45[4]; + uint riwar1; /* 0xd0dd0 - RapidIO Inbound Attributes Register 1 */ + char res46[12]; + uint riwtar0; /* 0xd0de0 - RapidIO Inbound Window Translation Address Register 0 */ + char res47[12]; + uint riwar0; /* 0xd0df0 - RapidIO Inbound Attributes Register 0 */ + char res48[12]; + uint pnfedr; /* 0xd0e00 - Port Notification/Fatal Error Detect Register */ + uint pnfedir; /* 0xd0e04 - Port Notification/Fatal Error Detect Register */ + uint pnfeier; /* 0xd0e08 - Port Notification/Fatal Error Interrupt Enable Register */ + uint pecr; /* 0xd0e0c - Port Error Control Register */ + uint pepcsr0; /* 0xd0e10 - Port Error Packet/Control Symbol Register 0 */ + uint pepr1; /* 0xd0e14 - Port Error Packet Register 1 */ + uint pepr2; /* 0xd0e18 - Port Error Packet Register 2 */ + char res49[4]; + uint predr; /* 0xd0e20 - Port Recoverable Error Detect Register */ + char res50[4]; + uint pertr; /* 0xd0e28 - Port Error Recovery Threshold Register */ + uint prtr; /* 0xd0e2c - Port Retry Threshold Register */ + char res51[8656]; + uint omr; /* 0xd3000 - Outbound Mode Register */ + uint osr; /* 0xd3004 - Outbound Status Register */ + uint eodqtpar; /* 0xd3008 - Extended Outbound Descriptor Queue Tail Pointer Address Register */ + uint odqtpar; /* 0xd300c - Outbound Descriptor Queue Tail Pointer Address Register */ + uint eosar; /* 0xd3010 - Extended Outbound Unit Source Address Register */ + uint osar; /* 0xd3014 - Outbound Unit Source Address Register */ + uint odpr; /* 0xd3018 - Outbound Destination Port Register */ + uint odatr; /* 0xd301c - Outbound Destination Attributes Register */ + uint odcr; /* 0xd3020 - Outbound Doubleword Count Register */ + uint eodqhpar; /* 0xd3024 - Extended Outbound Descriptor Queue Head Pointer Address Register */ + uint odqhpar; /* 0xd3028 - Outbound Descriptor Queue Head Pointer Address Register */ + uint oretr; /* 0xd302C - Outbound Retry Error Threshold Register */ + uint omgr; /* 0xd3030 - Outbound Multicast Group Register */ + uint omlr; /* 0xd3034 - Outbound Multicast List Register */ + char res52[40]; + uint imr; /* 0xd3060 - Outbound Mode Register */ + uint isr; /* 0xd3064 - Inbound Status Register */ + uint eidqtpar; /* 0xd3068 - Extended Inbound Descriptor Queue Tail Pointer Address Register */ + uint idqtpar; /* 0xd306c - Inbound Descriptor Queue Tail Pointer Address Register */ + uint eifqhpar; /* 0xd3070 - Extended Inbound Frame Queue Head Pointer Address Register */ + uint ifqhpar; /* 0xd3074 - Inbound Frame Queue Head Pointer Address Register */ + uint imirir; /* 0xd3078 - Inbound Maximum Interrutp Report Interval Register */ + char res53[900]; + uint oddmr; /* 0xd3400 - Outbound Doorbell Mode Register */ + uint oddsr; /* 0xd3404 - Outbound Doorbell Status Register */ + char res54[16]; + uint oddpr; /* 0xd3418 - Outbound Doorbell Destination Port Register */ + uint oddatr; /* 0xd341C - Outbound Doorbell Destination Attributes Register */ + char res55[12]; + uint oddretr; /* 0xd342C - Outbound Doorbell Retry Threshold Configuration Register */ + char res56[48]; + uint idmr; /* 0xd3460 - Inbound Doorbell Mode Register */ + uint idsr; /* 0xd3464 - Inbound Doorbell Status Register */ + uint iedqtpar; /* 0xd3468 - Extended Inbound Doorbell Queue Tail Pointer Address Register */ + uint iqtpar; /* 0xd346c - Inbound Doorbell Queue Tail Pointer Address Register */ + uint iedqhpar; /* 0xd3470 - Extended Inbound Doorbell Queue Head Pointer Address Register */ + uint idqhpar; /* 0xd3474 - Inbound Doorbell Queue Head Pointer Address Register */ + uint idmirir; /* 0xd3478 - Inbound Doorbell Max Interrupt Report Interval Register */ + char res57[100]; + uint pwmr; /* 0xd34e0 - Port-Write Mode Register */ + uint pwsr; /* 0xd34e4 - Port-Write Status Register */ + uint epwqbar; /* 0xd34e8 - Extended Port-Write Queue Base Address Register */ + uint pwqbar; /* 0xd34ec - Port-Write Queue Base Address Register */ + char res58[51984]; +} ccsr_rio_t; + +/* Global Utilities Register Block(0xe_0000-0xf_ffff) */ +typedef struct ccsr_gur { + uint porpllsr; /* 0xe0000 - POR PLL ratio status register */ + uint porbmsr; /* 0xe0004 - POR boot mode status register */ + uint porimpscr; /* 0xe0008 - POR I/O impedance status and control register */ + uint pordevsr; /* 0xe000c - POR I/O device status regsiter */ + uint pordbgmsr; /* 0xe0010 - POR debug mode status register */ + char res1[12]; + uint gpporcr; /* 0xe0020 - General-purpose POR configuration register */ + char res2[12]; + uint gpiocr; /* 0xe0030 - GPIO control register */ + char res3[12]; + uint gpoutdr; /* 0xe0040 - General-purpose output data register */ + char res4[12]; + uint gpindr; /* 0xe0050 - General-purpose input data register */ + char res5[12]; + uint pmuxcr; /* 0xe0060 - Alternate function signal multiplex control */ + char res6[12]; + uint devdisr; /* 0xe0070 - Device disable control */ + char res7[12]; + uint powmgtcsr; /* 0xe0080 - Power management status and control register */ + char res8[12]; + uint mcpsumr; /* 0xe0090 - Machine check summary register */ + uint rstrscr; /* 0xe0094 - Reset request status and control register */ + char res9[8]; + uint pvr; /* 0xe00a0 - Processor version register */ + uint svr; /* 0xe00a4 - System version register */ + char res10a[8]; + uint rstcr; /* 0xe00b0 - Reset control register */ + char res10b[1868]; + uint clkdvdr; /* 0xe0800 - Clock Divide register */ + char res10c[796]; + uint ddr1clkdr; /* 0xe0b20 - DDRC1 Clock Disable register */ + char res10d[4]; + uint ddr2clkdr; /* 0xe0b28 - DDRC2 Clock Disable register */ + char res10e[724]; + uint clkocr; /* 0xe0e00 - Clock out select register */ + char res11[12]; + uint ddrdllcr; /* 0xe0e10 - DDR DLL control register */ + char res12[12]; + uint lbcdllcr; /* 0xe0e20 - LBC DLL control register */ + char res13a[224]; + uint srds1cr0; /* 0xe0f04 - SerDes1 control register 0 */ + char res13b[4]; + uint srds1cr1; /* 0xe0f08 - SerDes1 control register 1 */ + char res14[24]; + uint ddrioovcr; /* 0xe0f24 - DDR IO Overdrive Control register */ + char res15a[24]; + uint srds2cr0; /* 0xe0f40 - SerDes2 control register 0 */ + uint srds2cr1; /* 0xe0f44 - SerDes2 control register 1 */ + char res16[184]; +} ccsr_gur_t; + +#define MPC8610_PORBMSR_HA 0x00070000 +#define MPC8610_PORBMSR_HA_SHIFT 16 +#define MPC8641_PORBMSR_HA 0x00060000 +#define MPC8641_PORBMSR_HA_SHIFT 17 +#define MPC8610_PORDEVSR_IO_SEL 0x00380000 +#define MPC8610_PORDEVSR_IO_SEL_SHIFT 19 +#define MPC8641_PORDEVSR_IO_SEL 0x000F0000 +#define MPC8641_PORDEVSR_IO_SEL_SHIFT 16 +#define MPC86xx_PORDEVSR_CORE1TE 0x00000080 /* ASMP (Core1 addr trans) */ +#define MPC86xx_DEVDISR_PCIEX1 0x80000000 +#define MPC86xx_DEVDISR_PCIEX2 0x40000000 +#define MPC86xx_DEVDISR_PCI1 0x80000000 +#define MPC86xx_DEVDISR_PCIE1 0x40000000 +#define MPC86xx_DEVDISR_PCIE2 0x20000000 +#define MPC86xx_DEVDISR_CPU0 0x00008000 +#define MPC86xx_DEVDISR_CPU1 0x00004000 +#define MPC86xx_RSTCR_HRST_REQ 0x00000002 + +/* + * Watchdog register block(0xe_4000-0xe_4fff) + */ +typedef struct ccsr_wdt { + uint res0; + uint swcrr; /* System watchdog control register */ + uint swcnr; /* System watchdog count register */ + char res1[2]; + ushort swsrr; /* System watchdog service register */ + char res2[4080]; +} ccsr_wdt_t; + +typedef struct immap { + ccsr_local_mcm_t im_local_mcm; + ccsr_ddr_t im_ddr1; + ccsr_i2c_t im_i2c; + ccsr_duart_t im_duart; + ccsr_lbc_t im_lbc; + ccsr_ddr_t im_ddr2; + char res1[4096]; + ccsr_pex_t im_pex1; + ccsr_pex_t im_pex2; + ccsr_ht_t im_ht; + char res2[90112]; + ccsr_dma_t im_dma; + char res3[8192]; + ccsr_tsec_t im_tsec1; + ccsr_tsec_t im_tsec2; + ccsr_tsec_t im_tsec3; + ccsr_tsec_t im_tsec4; + char res4[98304]; + ccsr_pic_t im_pic; + char res5[389120]; + ccsr_rio_t im_rio; + ccsr_gur_t im_gur; + char res6[12288]; + ccsr_wdt_t im_wdt; +} immap_t; + +extern immap_t *immr; + +#define CONFIG_SYS_MPC86xx_DDR_OFFSET (0x2000) +#define CONFIG_SYS_MPC86xx_DDR_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC86xx_DDR_OFFSET) +#define CONFIG_SYS_MPC86xx_DDR2_OFFSET (0x6000) +#define CONFIG_SYS_MPC86xx_DDR2_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC86xx_DDR2_OFFSET) +#define CONFIG_SYS_MPC86xx_DMA_OFFSET (0x21000) +#define CONFIG_SYS_MPC86xx_DMA_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC86xx_DMA_OFFSET) + +#define CONFIG_SYS_TSEC1_OFFSET 0x24000 +#define CONFIG_SYS_MDIO1_OFFSET 0x24000 + +#define TSEC_BASE_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_TSEC1_OFFSET) +#define MDIO_BASE_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MDIO1_OFFSET) + +#endif /*__IMMAP_86xx__*/ diff --git a/arch/ppc/include/asm/immap_qe.h b/arch/ppc/include/asm/immap_qe.h new file mode 100644 index 0000000..531cfc8 --- /dev/null +++ b/arch/ppc/include/asm/immap_qe.h @@ -0,0 +1,621 @@ +/* + * QUICC Engine (QE) Internal Memory Map. + * The Internal Memory Map for devices with QE on them. This + * is the superset of all QE devices (8360, etc.). + * + * Copyright (c) 2006-2009 Freescale Semiconductor, Inc. + * Author: Shlomi Gridih <gridish@freescale.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef __IMMAP_QE_H__ +#define __IMMAP_QE_H__ + +/* QE I-RAM +*/ +typedef struct qe_iram { + u32 iadd; /* I-RAM Address Register */ + u32 idata; /* I-RAM Data Register */ + u8 res0[0x4]; + u32 iready; + u8 res1[0x70]; +} __attribute__ ((packed)) qe_iram_t; + +/* QE Interrupt Controller +*/ +typedef struct qe_ic { + u32 qicr; + u32 qivec; + u32 qripnr; + u32 qipnr; + u32 qipxcc; + u32 qipycc; + u32 qipwcc; + u32 qipzcc; + u32 qimr; + u32 qrimr; + u32 qicnr; + u8 res0[0x4]; + u32 qiprta; + u32 qiprtb; + u8 res1[0x4]; + u32 qricr; + u8 res2[0x20]; + u32 qhivec; + u8 res3[0x1C]; +} __attribute__ ((packed)) qe_ic_t; + +/* Communications Processor +*/ +typedef struct cp_qe { + u32 cecr; /* QE command register */ + u32 ceccr; /* QE controller configuration register */ + u32 cecdr; /* QE command data register */ + u8 res0[0xA]; + u16 ceter; /* QE timer event register */ + u8 res1[0x2]; + u16 cetmr; /* QE timers mask register */ + u32 cetscr; /* QE time-stamp timer control register */ + u32 cetsr1; /* QE time-stamp register 1 */ + u32 cetsr2; /* QE time-stamp register 2 */ + u8 res2[0x8]; + u32 cevter; /* QE virtual tasks event register */ + u32 cevtmr; /* QE virtual tasks mask register */ + u16 cercr; /* QE RAM control register */ + u8 res3[0x2]; + u8 res4[0x24]; + u16 ceexe1; /* QE external request 1 event register */ + u8 res5[0x2]; + u16 ceexm1; /* QE external request 1 mask register */ + u8 res6[0x2]; + u16 ceexe2; /* QE external request 2 event register */ + u8 res7[0x2]; + u16 ceexm2; /* QE external request 2 mask register */ + u8 res8[0x2]; + u16 ceexe3; /* QE external request 3 event register */ + u8 res9[0x2]; + u16 ceexm3; /* QE external request 3 mask register */ + u8 res10[0x2]; + u16 ceexe4; /* QE external request 4 event register */ + u8 res11[0x2]; + u16 ceexm4; /* QE external request 4 mask register */ + u8 res12[0x2]; + u8 res13[0x280]; +} __attribute__ ((packed)) cp_qe_t; + +/* QE Multiplexer +*/ +typedef struct qe_mux { + u32 cmxgcr; /* CMX general clock route register */ + u32 cmxsi1cr_l; /* CMX SI1 clock route low register */ + u32 cmxsi1cr_h; /* CMX SI1 clock route high register */ + u32 cmxsi1syr; /* CMX SI1 SYNC route register */ + u32 cmxucr1; /* CMX UCC1, UCC3 clock route register */ + u32 cmxucr2; /* CMX UCC5, UCC7 clock route register */ + u32 cmxucr3; /* CMX UCC2, UCC4 clock route register */ + u32 cmxucr4; /* CMX UCC6, UCC8 clock route register */ + u32 cmxupcr; /* CMX UPC clock route register */ + u8 res0[0x1C]; +} __attribute__ ((packed)) qe_mux_t; + +/* QE Timers +*/ +typedef struct qe_timers { + u8 gtcfr1; /* Timer 1 2 global configuration register */ + u8 res0[0x3]; + u8 gtcfr2; /* Timer 3 4 global configuration register */ + u8 res1[0xB]; + u16 gtmdr1; /* Timer 1 mode register */ + u16 gtmdr2; /* Timer 2 mode register */ + u16 gtrfr1; /* Timer 1 reference register */ + u16 gtrfr2; /* Timer 2 reference register */ + u16 gtcpr1; /* Timer 1 capture register */ + u16 gtcpr2; /* Timer 2 capture register */ + u16 gtcnr1; /* Timer 1 counter */ + u16 gtcnr2; /* Timer 2 counter */ + u16 gtmdr3; /* Timer 3 mode register */ + u16 gtmdr4; /* Timer 4 mode register */ + u16 gtrfr3; /* Timer 3 reference register */ + u16 gtrfr4; /* Timer 4 reference register */ + u16 gtcpr3; /* Timer 3 capture register */ + u16 gtcpr4; /* Timer 4 capture register */ + u16 gtcnr3; /* Timer 3 counter */ + u16 gtcnr4; /* Timer 4 counter */ + u16 gtevr1; /* Timer 1 event register */ + u16 gtevr2; /* Timer 2 event register */ + u16 gtevr3; /* Timer 3 event register */ + u16 gtevr4; /* Timer 4 event register */ + u16 gtps; /* Timer 1 prescale register */ + u8 res2[0x46]; +} __attribute__ ((packed)) qe_timers_t; + +/* BRG +*/ +typedef struct qe_brg { + u32 brgc1; /* BRG1 configuration register */ + u32 brgc2; /* BRG2 configuration register */ + u32 brgc3; /* BRG3 configuration register */ + u32 brgc4; /* BRG4 configuration register */ + u32 brgc5; /* BRG5 configuration register */ + u32 brgc6; /* BRG6 configuration register */ + u32 brgc7; /* BRG7 configuration register */ + u32 brgc8; /* BRG8 configuration register */ + u32 brgc9; /* BRG9 configuration register */ + u32 brgc10; /* BRG10 configuration register */ + u32 brgc11; /* BRG11 configuration register */ + u32 brgc12; /* BRG12 configuration register */ + u32 brgc13; /* BRG13 configuration register */ + u32 brgc14; /* BRG14 configuration register */ + u32 brgc15; /* BRG15 configuration register */ + u32 brgc16; /* BRG16 configuration register */ + u8 res0[0x40]; +} __attribute__ ((packed)) qe_brg_t; + +/* SPI +*/ +typedef struct spi { + u8 res0[0x20]; + u32 spmode; /* SPI mode register */ + u8 res1[0x2]; + u8 spie; /* SPI event register */ + u8 res2[0x1]; + u8 res3[0x2]; + u8 spim; /* SPI mask register */ + u8 res4[0x1]; + u8 res5[0x1]; + u8 spcom; /* SPI command register */ + u8 res6[0x2]; + u32 spitd; /* SPI transmit data register (cpu mode) */ + u32 spird; /* SPI receive data register (cpu mode) */ + u8 res7[0x8]; +} __attribute__ ((packed)) spi_t; + +/* SI +*/ +typedef struct si1 { + u16 siamr1; /* SI1 TDMA mode register */ + u16 sibmr1; /* SI1 TDMB mode register */ + u16 sicmr1; /* SI1 TDMC mode register */ + u16 sidmr1; /* SI1 TDMD mode register */ + u8 siglmr1_h; /* SI1 global mode register high */ + u8 res0[0x1]; + u8 sicmdr1_h; /* SI1 command register high */ + u8 res2[0x1]; + u8 sistr1_h; /* SI1 status register high */ + u8 res3[0x1]; + u16 sirsr1_h; /* SI1 RAM shadow address register high */ + u8 sitarc1; /* SI1 RAM counter Tx TDMA */ + u8 sitbrc1; /* SI1 RAM counter Tx TDMB */ + u8 sitcrc1; /* SI1 RAM counter Tx TDMC */ + u8 sitdrc1; /* SI1 RAM counter Tx TDMD */ + u8 sirarc1; /* SI1 RAM counter Rx TDMA */ + u8 sirbrc1; /* SI1 RAM counter Rx TDMB */ + u8 sircrc1; /* SI1 RAM counter Rx TDMC */ + u8 sirdrc1; /* SI1 RAM counter Rx TDMD */ + u8 res4[0x8]; + u16 siemr1; /* SI1 TDME mode register 16 bits */ + u16 sifmr1; /* SI1 TDMF mode register 16 bits */ + u16 sigmr1; /* SI1 TDMG mode register 16 bits */ + u16 sihmr1; /* SI1 TDMH mode register 16 bits */ + u8 siglmg1_l; /* SI1 global mode register low 8 bits */ + u8 res5[0x1]; + u8 sicmdr1_l; /* SI1 command register low 8 bits */ + u8 res6[0x1]; + u8 sistr1_l; /* SI1 status register low 8 bits */ + u8 res7[0x1]; + u16 sirsr1_l; /* SI1 RAM shadow address register low 16 bits */ + u8 siterc1; /* SI1 RAM counter Tx TDME 8 bits */ + u8 sitfrc1; /* SI1 RAM counter Tx TDMF 8 bits */ + u8 sitgrc1; /* SI1 RAM counter Tx TDMG 8 bits */ + u8 sithrc1; /* SI1 RAM counter Tx TDMH 8 bits */ + u8 sirerc1; /* SI1 RAM counter Rx TDME 8 bits */ + u8 sirfrc1; /* SI1 RAM counter Rx TDMF 8 bits */ + u8 sirgrc1; /* SI1 RAM counter Rx TDMG 8 bits */ + u8 sirhrc1; /* SI1 RAM counter Rx TDMH 8 bits */ + u8 res8[0x8]; + u32 siml1; /* SI1 multiframe limit register */ + u8 siedm1; /* SI1 extended diagnostic mode register */ + u8 res9[0xBB]; +} __attribute__ ((packed)) si1_t; + +/* SI Routing Tables +*/ +typedef struct sir { + u8 tx[0x400]; + u8 rx[0x400]; + u8 res0[0x800]; +} __attribute__ ((packed)) sir_t; + +/* USB Controller. +*/ +typedef struct usb_ctlr { + u8 usb_usmod; + u8 usb_usadr; + u8 usb_uscom; + u8 res1[1]; + u16 usb_usep1; + u16 usb_usep2; + u16 usb_usep3; + u16 usb_usep4; + u8 res2[4]; + u16 usb_usber; + u8 res3[2]; + u16 usb_usbmr; + u8 res4[1]; + u8 usb_usbs; + u16 usb_ussft; + u8 res5[2]; + u16 usb_usfrn; + u8 res6[0x22]; +} __attribute__ ((packed)) usb_t; + +/* MCC +*/ +typedef struct mcc { + u32 mcce; /* MCC event register */ + u32 mccm; /* MCC mask register */ + u32 mccf; /* MCC configuration register */ + u32 merl; /* MCC emergency request level register */ + u8 res0[0xF0]; +} __attribute__ ((packed)) mcc_t; + +/* QE UCC Slow +*/ +typedef struct ucc_slow { + u32 gumr_l; /* UCCx general mode register (low) */ + u32 gumr_h; /* UCCx general mode register (high) */ + u16 upsmr; /* UCCx protocol-specific mode register */ + u8 res0[0x2]; + u16 utodr; /* UCCx transmit on demand register */ + u16 udsr; /* UCCx data synchronization register */ + u16 ucce; /* UCCx event register */ + u8 res1[0x2]; + u16 uccm; /* UCCx mask register */ + u8 res2[0x1]; + u8 uccs; /* UCCx status register */ + u8 res3[0x24]; + u16 utpt; + u8 guemr; /* UCC general extended mode register */ + u8 res4[0x200 - 0x091]; +} __attribute__ ((packed)) ucc_slow_t; + +typedef struct ucc_mii_mng { + u32 miimcfg; /* MII management configuration reg */ + u32 miimcom; /* MII management command reg */ + u32 miimadd; /* MII management address reg */ + u32 miimcon; /* MII management control reg */ + u32 miimstat; /* MII management status reg */ + u32 miimind; /* MII management indication reg */ + u32 ifctl; /* interface control reg */ + u32 ifstat; /* interface statux reg */ +} __attribute__ ((packed))uec_mii_t; + +typedef struct ucc_ethernet { + u32 maccfg1; /* mac configuration reg. 1 */ + u32 maccfg2; /* mac configuration reg. 2 */ + u32 ipgifg; /* interframe gap reg. */ + u32 hafdup; /* half-duplex reg. */ + u8 res1[0x10]; + u32 miimcfg; /* MII management configuration reg */ + u32 miimcom; /* MII management command reg */ + u32 miimadd; /* MII management address reg */ + u32 miimcon; /* MII management control reg */ + u32 miimstat; /* MII management status reg */ + u32 miimind; /* MII management indication reg */ + u32 ifctl; /* interface control reg */ + u32 ifstat; /* interface statux reg */ + u32 macstnaddr1; /* mac station address part 1 reg */ + u32 macstnaddr2; /* mac station address part 2 reg */ + u8 res2[0x8]; + u32 uempr; /* UCC Ethernet Mac parameter reg */ + u32 utbipar; /* UCC tbi address reg */ + u16 uescr; /* UCC Ethernet statistics control reg */ + u8 res3[0x180 - 0x15A]; + u32 tx64; /* Total number of frames (including bad + * frames) transmitted that were exactly + * of the minimal length (64 for un tagged, + * 68 for tagged, or with length exactly + * equal to the parameter MINLength */ + u32 tx127; /* Total number of frames (including bad + * frames) transmitted that were between + * MINLength (Including FCS length==4) + * and 127 octets */ + u32 tx255; /* Total number of frames (including bad + * frames) transmitted that were between + * 128 (Including FCS length==4) and 255 + * octets */ + u32 rx64; /* Total number of frames received including + * bad frames that were exactly of the + * mninimal length (64 bytes) */ + u32 rx127; /* Total number of frames (including bad + * frames) received that were between + * MINLength (Including FCS length==4) + * and 127 octets */ + u32 rx255; /* Total number of frames (including + * bad frames) received that were between + * 128 (Including FCS length==4) and 255 + * octets */ + u32 txok; /* Total number of octets residing in frames + * that where involved in succesfull + * transmission */ + u16 txcf; /* Total number of PAUSE control frames + * transmitted by this MAC */ + u8 res4[0x2]; + u32 tmca; /* Total number of frames that were transmitted + * succesfully with the group address bit set + * that are not broadcast frames */ + u32 tbca; /* Total number of frames transmitted + * succesfully that had destination address + * field equal to the broadcast address */ + u32 rxfok; /* Total number of frames received OK */ + u32 rxbok; /* Total number of octets received OK */ + u32 rbyt; /* Total number of octets received including + * octets in bad frames. Must be implemented + * in HW because it includes octets in frames + * that never even reach the UCC */ + u32 rmca; /* Total number of frames that were received + * succesfully with the group address bit set + * that are not broadcast frames */ + u32 rbca; /* Total number of frames received succesfully + * that had destination address equal to the + * broadcast address */ + u32 scar; /* Statistics carry register */ + u32 scam; /* Statistics caryy mask register */ + u8 res5[0x200 - 0x1c4]; +} __attribute__ ((packed)) uec_t; + +/* QE UCC Fast +*/ +typedef struct ucc_fast { + u32 gumr; /* UCCx general mode register */ + u32 upsmr; /* UCCx protocol-specific mode register */ + u16 utodr; /* UCCx transmit on demand register */ + u8 res0[0x2]; + u16 udsr; /* UCCx data synchronization register */ + u8 res1[0x2]; + u32 ucce; /* UCCx event register */ + u32 uccm; /* UCCx mask register. */ + u8 uccs; /* UCCx status register */ + u8 res2[0x7]; + u32 urfb; /* UCC receive FIFO base */ + u16 urfs; /* UCC receive FIFO size */ + u8 res3[0x2]; + u16 urfet; /* UCC receive FIFO emergency threshold */ + u16 urfset; /* UCC receive FIFO special emergency + * threshold */ + u32 utfb; /* UCC transmit FIFO base */ + u16 utfs; /* UCC transmit FIFO size */ + u8 res4[0x2]; + u16 utfet; /* UCC transmit FIFO emergency threshold */ + u8 res5[0x2]; + u16 utftt; /* UCC transmit FIFO transmit threshold */ + u8 res6[0x2]; + u16 utpt; /* UCC transmit polling timer */ + u8 res7[0x2]; + u32 urtry; /* UCC retry counter register */ + u8 res8[0x4C]; + u8 guemr; /* UCC general extended mode register */ + u8 res9[0x100 - 0x091]; + uec_t ucc_eth; +} __attribute__ ((packed)) ucc_fast_t; + +/* QE UCC +*/ +typedef struct ucc_common { + u8 res1[0x90]; + u8 guemr; + u8 res2[0x200 - 0x091]; +} __attribute__ ((packed)) ucc_common_t; + +typedef struct ucc { + union { + ucc_slow_t slow; + ucc_fast_t fast; + ucc_common_t common; + }; +} __attribute__ ((packed)) ucc_t; + +/* MultiPHY UTOPIA POS Controllers (UPC) +*/ +typedef struct upc { + u32 upgcr; /* UTOPIA/POS general configuration register */ + u32 uplpa; /* UTOPIA/POS last PHY address */ + u32 uphec; /* ATM HEC register */ + u32 upuc; /* UTOPIA/POS UCC configuration */ + u32 updc1; /* UTOPIA/POS device 1 configuration */ + u32 updc2; /* UTOPIA/POS device 2 configuration */ + u32 updc3; /* UTOPIA/POS device 3 configuration */ + u32 updc4; /* UTOPIA/POS device 4 configuration */ + u32 upstpa; /* UTOPIA/POS STPA threshold */ + u8 res0[0xC]; + u32 updrs1_h; /* UTOPIA/POS device 1 rate select */ + u32 updrs1_l; /* UTOPIA/POS device 1 rate select */ + u32 updrs2_h; /* UTOPIA/POS device 2 rate select */ + u32 updrs2_l; /* UTOPIA/POS device 2 rate select */ + u32 updrs3_h; /* UTOPIA/POS device 3 rate select */ + u32 updrs3_l; /* UTOPIA/POS device 3 rate select */ + u32 updrs4_h; /* UTOPIA/POS device 4 rate select */ + u32 updrs4_l; /* UTOPIA/POS device 4 rate select */ + u32 updrp1; /* UTOPIA/POS device 1 receive priority low */ + u32 updrp2; /* UTOPIA/POS device 2 receive priority low */ + u32 updrp3; /* UTOPIA/POS device 3 receive priority low */ + u32 updrp4; /* UTOPIA/POS device 4 receive priority low */ + u32 upde1; /* UTOPIA/POS device 1 event */ + u32 upde2; /* UTOPIA/POS device 2 event */ + u32 upde3; /* UTOPIA/POS device 3 event */ + u32 upde4; /* UTOPIA/POS device 4 event */ + u16 uprp1; + u16 uprp2; + u16 uprp3; + u16 uprp4; + u8 res1[0x8]; + u16 uptirr1_0; /* Device 1 transmit internal rate 0 */ + u16 uptirr1_1; /* Device 1 transmit internal rate 1 */ + u16 uptirr1_2; /* Device 1 transmit internal rate 2 */ + u16 uptirr1_3; /* Device 1 transmit internal rate 3 */ + u16 uptirr2_0; /* Device 2 transmit internal rate 0 */ + u16 uptirr2_1; /* Device 2 transmit internal rate 1 */ + u16 uptirr2_2; /* Device 2 transmit internal rate 2 */ + u16 uptirr2_3; /* Device 2 transmit internal rate 3 */ + u16 uptirr3_0; /* Device 3 transmit internal rate 0 */ + u16 uptirr3_1; /* Device 3 transmit internal rate 1 */ + u16 uptirr3_2; /* Device 3 transmit internal rate 2 */ + u16 uptirr3_3; /* Device 3 transmit internal rate 3 */ + u16 uptirr4_0; /* Device 4 transmit internal rate 0 */ + u16 uptirr4_1; /* Device 4 transmit internal rate 1 */ + u16 uptirr4_2; /* Device 4 transmit internal rate 2 */ + u16 uptirr4_3; /* Device 4 transmit internal rate 3 */ + u32 uper1; /* Device 1 port enable register */ + u32 uper2; /* Device 2 port enable register */ + u32 uper3; /* Device 3 port enable register */ + u32 uper4; /* Device 4 port enable register */ + u8 res2[0x150]; +} __attribute__ ((packed)) upc_t; + +/* SDMA +*/ +typedef struct sdma { + u32 sdsr; /* Serial DMA status register */ + u32 sdmr; /* Serial DMA mode register */ + u32 sdtr1; /* SDMA system bus threshold register */ + u32 sdtr2; /* SDMA secondary bus threshold register */ + u32 sdhy1; /* SDMA system bus hysteresis register */ + u32 sdhy2; /* SDMA secondary bus hysteresis register */ + u32 sdta1; /* SDMA system bus address register */ + u32 sdta2; /* SDMA secondary bus address register */ + u32 sdtm1; /* SDMA system bus MSNUM register */ + u32 sdtm2; /* SDMA secondary bus MSNUM register */ + u8 res0[0x10]; + u32 sdaqr; /* SDMA address bus qualify register */ + u32 sdaqmr; /* SDMA address bus qualify mask register */ + u8 res1[0x4]; + u32 sdwbcr; /* SDMA CAM entries base register */ + u8 res2[0x38]; +} __attribute__ ((packed)) sdma_t; + +/* Debug Space +*/ +typedef struct dbg { + u32 bpdcr; /* Breakpoint debug command register */ + u32 bpdsr; /* Breakpoint debug status register */ + u32 bpdmr; /* Breakpoint debug mask register */ + u32 bprmrr0; /* Breakpoint request mode risc register 0 */ + u32 bprmrr1; /* Breakpoint request mode risc register 1 */ + u8 res0[0x8]; + u32 bprmtr0; /* Breakpoint request mode trb register 0 */ + u32 bprmtr1; /* Breakpoint request mode trb register 1 */ + u8 res1[0x8]; + u32 bprmir; /* Breakpoint request mode immediate register */ + u32 bprmsr; /* Breakpoint request mode serial register */ + u32 bpemr; /* Breakpoint exit mode register */ + u8 res2[0x48]; +} __attribute__ ((packed)) dbg_t; + +/* + * RISC Special Registers (Trap and Breakpoint). These are described in + * the QE Developer's Handbook. +*/ +typedef struct rsp { + u32 tibcr[16]; /* Trap/instruction breakpoint control regs */ + u8 res0[64]; + u32 ibcr0; + u32 ibs0; + u32 ibcnr0; + u8 res1[4]; + u32 ibcr1; + u32 ibs1; + u32 ibcnr1; + u32 npcr; + u32 dbcr; + u32 dbar; + u32 dbamr; + u32 dbsr; + u32 dbcnr; + u8 res2[12]; + u32 dbdr_h; + u32 dbdr_l; + u32 dbdmr_h; + u32 dbdmr_l; + u32 bsr; + u32 bor; + u32 bior; + u8 res3[4]; + u32 iatr[4]; + u32 eccr; /* Exception control configuration register */ + u32 eicr; + u8 res4[0x100-0xf8]; +} __attribute__ ((packed)) rsp_t; + +typedef struct qe_immap { + qe_iram_t iram; /* I-RAM */ + qe_ic_t ic; /* Interrupt Controller */ + cp_qe_t cp; /* Communications Processor */ + qe_mux_t qmx; /* QE Multiplexer */ + qe_timers_t qet; /* QE Timers */ + spi_t spi[0x2]; /* spi */ + mcc_t mcc; /* mcc */ + qe_brg_t brg; /* brg */ + usb_t usb; /* USB */ + si1_t si1; /* SI */ + u8 res11[0x800]; + sir_t sir; /* SI Routing Tables */ + ucc_t ucc1; /* ucc1 */ + ucc_t ucc3; /* ucc3 */ + ucc_t ucc5; /* ucc5 */ + ucc_t ucc7; /* ucc7 */ + u8 res12[0x600]; + upc_t upc1; /* MultiPHY UTOPIA POS Controller 1 */ + ucc_t ucc2; /* ucc2 */ + ucc_t ucc4; /* ucc4 */ + ucc_t ucc6; /* ucc6 */ + ucc_t ucc8; /* ucc8 */ + u8 res13[0x600]; + upc_t upc2; /* MultiPHY UTOPIA POS Controller 2 */ + sdma_t sdma; /* SDMA */ + dbg_t dbg; /* Debug Space */ + rsp_t rsp[0x2]; /* RISC Special Registers + * (Trap and Breakpoint) */ + u8 res14[0x300]; + u8 res15[0x3A00]; + u8 res16[0x8000]; /* 0x108000 - 0x110000 */ +#if defined(CONFIG_MPC8568) + u8 muram[0x10000]; /* 0x1_0000 - 0x2_0000 Multi-user RAM */ + u8 res17[0x20000]; /* 0x2_0000 - 0x4_0000 */ +#elif defined(CONFIG_MPC8569) + u8 muram[0x20000]; /* 0x1_0000 - 0x3_0000 Multi-user RAM */ + u8 res17[0x10000]; /* 0x3_0000 - 0x4_0000 */ +#else + u8 muram[0xC000]; /* 0x110000 - 0x11C000 Multi-user RAM */ + u8 res17[0x24000]; /* 0x11C000 - 0x140000 */ + u8 res18[0xC0000]; /* 0x140000 - 0x200000 */ +#endif +} __attribute__ ((packed)) qe_map_t; + +extern qe_map_t *qe_immr; + +#if defined(CONFIG_MPC8568) +#define QE_MURAM_SIZE 0x10000UL +#elif defined(CONFIG_MPC8569) +#define QE_MURAM_SIZE 0x20000UL +#elif defined(CONFIG_MPC8360) +#define QE_MURAM_SIZE 0xc000UL +#elif defined(CONFIG_MPC832x) +#define QE_MURAM_SIZE 0x4000UL +#endif + +#if defined(CONFIG_MPC8323) +#define MAX_QE_RISC 1 +#define QE_NUM_OF_SNUM 28 +#elif defined(CONFIG_MPC8569) +#define MAX_QE_RISC 4 +#define QE_NUM_OF_SNUM 46 +#else +#define MAX_QE_RISC 2 +#define QE_NUM_OF_SNUM 28 +#endif + +#endif /* __IMMAP_QE_H__ */ diff --git a/arch/ppc/include/asm/interrupt.h b/arch/ppc/include/asm/interrupt.h new file mode 100644 index 0000000..792836b --- /dev/null +++ b/arch/ppc/include/asm/interrupt.h @@ -0,0 +1,36 @@ +/* + * (C) Copyright 2008 + * Ricado Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es + * This work has been supported by: QTechnology http://qtec.com/ + * Based on interrupts.c Wolfgang Denk-DENX Software Engineering-wd@denx.de + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ +#ifndef INTERRUPT_H +#define INTERRUPT_H + +#if defined(CONFIG_XILINX_440) +#include <asm/xilinx_irq.h> +#else +#include <asm/ppc4xx-uic.h> +#endif + +void pic_enable(void); +void pic_irq_enable(unsigned int irq); +void pic_irq_disable(unsigned int irq); +void pic_irq_ack(unsigned int irq); +void external_interrupt(struct pt_regs *regs); +void interrupt_run_handler(int vec); + +#endif diff --git a/arch/ppc/include/asm/io.h b/arch/ppc/include/asm/io.h new file mode 100644 index 0000000..4ddad26 --- /dev/null +++ b/arch/ppc/include/asm/io.h @@ -0,0 +1,318 @@ +/* originally from linux source. + * removed the dependencies on CONFIG_ values + * removed virt_to_phys stuff (and in fact everything surrounded by #if __KERNEL__) + * Modified By Rob Taylor, Flying Pig Systems, 2000 + */ + +#ifndef _PPC_IO_H +#define _PPC_IO_H + +#include <linux/config.h> +#include <asm/byteorder.h> + +#ifdef CONFIG_ADDR_MAP +#include <addr_map.h> +#endif + +#define SIO_CONFIG_RA 0x398 +#define SIO_CONFIG_RD 0x399 + +#ifndef _IO_BASE +#define _IO_BASE 0 +#endif + +#define readb(addr) in_8((volatile u8 *)(addr)) +#define writeb(b,addr) out_8((volatile u8 *)(addr), (b)) +#if !defined(__BIG_ENDIAN) +#define readw(addr) (*(volatile u16 *) (addr)) +#define readl(addr) (*(volatile u32 *) (addr)) +#define writew(b,addr) ((*(volatile u16 *) (addr)) = (b)) +#define writel(b,addr) ((*(volatile u32 *) (addr)) = (b)) +#else +#define readw(addr) in_le16((volatile u16 *)(addr)) +#define readl(addr) in_le32((volatile u32 *)(addr)) +#define writew(b,addr) out_le16((volatile u16 *)(addr),(b)) +#define writel(b,addr) out_le32((volatile u32 *)(addr),(b)) +#endif + +/* + * The insw/outsw/insl/outsl macros don't do byte-swapping. + * They are only used in practice for transferring buffers which + * are arrays of bytes, and byte-swapping is not appropriate in + * that case. - paulus + */ +#define insb(port, buf, ns) _insb((u8 *)((port)+_IO_BASE), (buf), (ns)) +#define outsb(port, buf, ns) _outsb((u8 *)((port)+_IO_BASE), (buf), (ns)) +#define insw(port, buf, ns) _insw_ns((u16 *)((port)+_IO_BASE), (buf), (ns)) +#define outsw(port, buf, ns) _outsw_ns((u16 *)((port)+_IO_BASE), (buf), (ns)) +#define insl(port, buf, nl) _insl_ns((u32 *)((port)+_IO_BASE), (buf), (nl)) +#define outsl(port, buf, nl) _outsl_ns((u32 *)((port)+_IO_BASE), (buf), (nl)) + +#define inb(port) in_8((u8 *)((port)+_IO_BASE)) +#define outb(val, port) out_8((u8 *)((port)+_IO_BASE), (val)) +#if !defined(__BIG_ENDIAN) +#define inw(port) in_be16((u16 *)((port)+_IO_BASE)) +#define outw(val, port) out_be16((u16 *)((port)+_IO_BASE), (val)) +#define inl(port) in_be32((u32 *)((port)+_IO_BASE)) +#define outl(val, port) out_be32((u32 *)((port)+_IO_BASE), (val)) +#else +#define inw(port) in_le16((u16 *)((port)+_IO_BASE)) +#define outw(val, port) out_le16((u16 *)((port)+_IO_BASE), (val)) +#define inl(port) in_le32((u32 *)((port)+_IO_BASE)) +#define outl(val, port) out_le32((u32 *)((port)+_IO_BASE), (val)) +#endif + +#define inb_p(port) in_8((u8 *)((port)+_IO_BASE)) +#define outb_p(val, port) out_8((u8 *)((port)+_IO_BASE), (val)) +#define inw_p(port) in_le16((u16 *)((port)+_IO_BASE)) +#define outw_p(val, port) out_le16((u16 *)((port)+_IO_BASE), (val)) +#define inl_p(port) in_le32((u32 *)((port)+_IO_BASE)) +#define outl_p(val, port) out_le32((u32 *)((port)+_IO_BASE), (val)) + +extern void _insb(volatile u8 *port, void *buf, int ns); +extern void _outsb(volatile u8 *port, const void *buf, int ns); +extern void _insw(volatile u16 *port, void *buf, int ns); +extern void _outsw(volatile u16 *port, const void *buf, int ns); +extern void _insl(volatile u32 *port, void *buf, int nl); +extern void _outsl(volatile u32 *port, const void *buf, int nl); +extern void _insw_ns(volatile u16 *port, void *buf, int ns); +extern void _outsw_ns(volatile u16 *port, const void *buf, int ns); +extern void _insl_ns(volatile u32 *port, void *buf, int nl); +extern void _outsl_ns(volatile u32 *port, const void *buf, int nl); + +/* + * The *_ns versions below don't do byte-swapping. + * Neither do the standard versions now, these are just here + * for older code. + */ +#define insw_ns(port, buf, ns) _insw_ns((u16 *)((port)+_IO_BASE), (buf), (ns)) +#define outsw_ns(port, buf, ns) _outsw_ns((u16 *)((port)+_IO_BASE), (buf), (ns)) +#define insl_ns(port, buf, nl) _insl_ns((u32 *)((port)+_IO_BASE), (buf), (nl)) +#define outsl_ns(port, buf, nl) _outsl_ns((u32 *)((port)+_IO_BASE), (buf), (nl)) + + +#define IO_SPACE_LIMIT ~0 + +#define memset_io(a,b,c) memset((void *)(a),(b),(c)) +#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c)) +#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c)) + +/* + * Enforce In-order Execution of I/O: + * Acts as a barrier to ensure all previous I/O accesses have + * completed before any further ones are issued. + */ +static inline void eieio(void) +{ + __asm__ __volatile__ ("eieio" : : : "memory"); +} + +static inline void sync(void) +{ + __asm__ __volatile__ ("sync" : : : "memory"); +} + +static inline void isync(void) +{ + __asm__ __volatile__ ("isync" : : : "memory"); +} + +/* Enforce in-order execution of data I/O. + * No distinction between read/write on PPC; use eieio for all three. + */ +#define iobarrier_rw() eieio() +#define iobarrier_r() eieio() +#define iobarrier_w() eieio() + +/* + * Non ordered and non-swapping "raw" accessors + */ +#define __iomem +#define PCI_FIX_ADDR(addr) (addr) + +static inline unsigned char __raw_readb(const volatile void __iomem *addr) +{ + return *(volatile unsigned char *)PCI_FIX_ADDR(addr); +} +static inline unsigned short __raw_readw(const volatile void __iomem *addr) +{ + return *(volatile unsigned short *)PCI_FIX_ADDR(addr); +} +static inline unsigned int __raw_readl(const volatile void __iomem *addr) +{ + return *(volatile unsigned int *)PCI_FIX_ADDR(addr); +} +static inline void __raw_writeb(unsigned char v, volatile void __iomem *addr) +{ + *(volatile unsigned char *)PCI_FIX_ADDR(addr) = v; +} +static inline void __raw_writew(unsigned short v, volatile void __iomem *addr) +{ + *(volatile unsigned short *)PCI_FIX_ADDR(addr) = v; +} +static inline void __raw_writel(unsigned int v, volatile void __iomem *addr) +{ + *(volatile unsigned int *)PCI_FIX_ADDR(addr) = v; +} + +/* + * 8, 16 and 32 bit, big and little endian I/O operations, with barrier. + * + * Read operations have additional twi & isync to make sure the read + * is actually performed (i.e. the data has come back) before we start + * executing any following instructions. + */ +extern inline int in_8(const volatile unsigned char __iomem *addr) +{ + int ret; + + __asm__ __volatile__( + "sync; lbz%U1%X1 %0,%1;\n" + "twi 0,%0,0;\n" + "isync" : "=r" (ret) : "m" (*addr)); + return ret; +} + +extern inline void out_8(volatile unsigned char __iomem *addr, int val) +{ + __asm__ __volatile__("stb%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val)); +} + +extern inline int in_le16(const volatile unsigned short __iomem *addr) +{ + int ret; + + __asm__ __volatile__("sync; lhbrx %0,0,%1;\n" + "twi 0,%0,0;\n" + "isync" : "=r" (ret) : + "r" (addr), "m" (*addr)); + return ret; +} + +extern inline int in_be16(const volatile unsigned short __iomem *addr) +{ + int ret; + + __asm__ __volatile__("sync; lhz%U1%X1 %0,%1;\n" + "twi 0,%0,0;\n" + "isync" : "=r" (ret) : "m" (*addr)); + return ret; +} + +extern inline void out_le16(volatile unsigned short __iomem *addr, int val) +{ + __asm__ __volatile__("sync; sthbrx %1,0,%2" : "=m" (*addr) : + "r" (val), "r" (addr)); +} + +extern inline void out_be16(volatile unsigned short __iomem *addr, int val) +{ + __asm__ __volatile__("sync; sth%U0%X0 %1,%0" : "=m" (*addr) : "r" (val)); +} + +extern inline unsigned in_le32(const volatile unsigned __iomem *addr) +{ + unsigned ret; + + __asm__ __volatile__("sync; lwbrx %0,0,%1;\n" + "twi 0,%0,0;\n" + "isync" : "=r" (ret) : + "r" (addr), "m" (*addr)); + return ret; +} + +extern inline unsigned in_be32(const volatile unsigned __iomem *addr) +{ + unsigned ret; + + __asm__ __volatile__("sync; lwz%U1%X1 %0,%1;\n" + "twi 0,%0,0;\n" + "isync" : "=r" (ret) : "m" (*addr)); + return ret; +} + +extern inline void out_le32(volatile unsigned __iomem *addr, int val) +{ + __asm__ __volatile__("sync; stwbrx %1,0,%2" : "=m" (*addr) : + "r" (val), "r" (addr)); +} + +extern inline void out_be32(volatile unsigned __iomem *addr, int val) +{ + __asm__ __volatile__("sync; stw%U0%X0 %1,%0" : "=m" (*addr) : "r" (val)); +} + +/* Clear and set bits in one shot. These macros can be used to clear and + * set multiple bits in a register using a single call. These macros can + * also be used to set a multiple-bit bit pattern using a mask, by + * specifying the mask in the 'clear' parameter and the new bit pattern + * in the 'set' parameter. + */ + +#define clrbits(type, addr, clear) \ + out_##type((addr), in_##type(addr) & ~(clear)) + +#define setbits(type, addr, set) \ + out_##type((addr), in_##type(addr) | (set)) + +#define clrsetbits(type, addr, clear, set) \ + out_##type((addr), (in_##type(addr) & ~(clear)) | (set)) + +#define clrbits_be32(addr, clear) clrbits(be32, addr, clear) +#define setbits_be32(addr, set) setbits(be32, addr, set) +#define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set) + +#define clrbits_le32(addr, clear) clrbits(le32, addr, clear) +#define setbits_le32(addr, set) setbits(le32, addr, set) +#define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set) + +#define clrbits_be16(addr, clear) clrbits(be16, addr, clear) +#define setbits_be16(addr, set) setbits(be16, addr, set) +#define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set) + +#define clrbits_le16(addr, clear) clrbits(le16, addr, clear) +#define setbits_le16(addr, set) setbits(le16, addr, set) +#define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set) + +#define clrbits_8(addr, clear) clrbits(8, addr, clear) +#define setbits_8(addr, set) setbits(8, addr, set) +#define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set) + +/* + * Given a physical address and a length, return a virtual address + * that can be used to access the memory range with the caching + * properties specified by "flags". + */ +#define MAP_NOCACHE (0) +#define MAP_WRCOMBINE (0) +#define MAP_WRBACK (0) +#define MAP_WRTHROUGH (0) + +static inline void * +map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags) +{ +#ifdef CONFIG_ADDR_MAP + return (void *)(addrmap_phys_to_virt(paddr)); +#else + return (void *)((unsigned long)paddr); +#endif +} + +/* + * Take down a mapping set up by map_physmem(). + */ +static inline void unmap_physmem(void *vaddr, unsigned long flags) +{ + +} + +static inline phys_addr_t virt_to_phys(void * vaddr) +{ +#ifdef CONFIG_ADDR_MAP + return addrmap_virt_to_phys(vaddr); +#else + return (phys_addr_t)((unsigned long)vaddr); +#endif +} + +#endif diff --git a/arch/ppc/include/asm/iopin_8260.h b/arch/ppc/include/asm/iopin_8260.h new file mode 100644 index 0000000..619f3a8 --- /dev/null +++ b/arch/ppc/include/asm/iopin_8260.h @@ -0,0 +1,168 @@ +/* + * MPC8260 I/O port pin manipulation functions + */ + +#ifndef _ASM_IOPIN_8260_H_ +#define _ASM_IOPIN_8260_H_ + +#include <linux/types.h> +#include <asm/immap_8260.h> + +#ifdef __KERNEL__ + +typedef + struct { + u_char port:2; /* port number (A=0, B=1, C=2, D=3) */ + u_char pin:5; /* port pin (0-31) */ + u_char flag:1; /* for whatever */ + } +iopin_t; + +#define IOPIN_PORTA 0 +#define IOPIN_PORTB 1 +#define IOPIN_PORTC 2 +#define IOPIN_PORTD 3 + +extern __inline__ void +iopin_set_high(iopin_t *iopin) +{ + volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata; + datp[iopin->port * 8] |= (1 << (31 - iopin->pin)); +} + +extern __inline__ void +iopin_set_low(iopin_t *iopin) +{ + volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata; + datp[iopin->port * 8] &= ~(1 << (31 - iopin->pin)); +} + +extern __inline__ uint +iopin_is_high(iopin_t *iopin) +{ + volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata; + return (datp[iopin->port * 8] >> (31 - iopin->pin)) & 1; +} + +extern __inline__ uint +iopin_is_low(iopin_t *iopin) +{ + volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata; + return ((datp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1; +} + +extern __inline__ void +iopin_set_out(iopin_t *iopin) +{ + volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira; + dirp[iopin->port * 8] |= (1 << (31 - iopin->pin)); +} + +extern __inline__ void +iopin_set_in(iopin_t *iopin) +{ + volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira; + dirp[iopin->port * 8] &= ~(1 << (31 - iopin->pin)); +} + +extern __inline__ uint +iopin_is_out(iopin_t *iopin) +{ + volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira; + return (dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1; +} + +extern __inline__ uint +iopin_is_in(iopin_t *iopin) +{ + volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira; + return ((dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1; +} + +extern __inline__ void +iopin_set_odr(iopin_t *iopin) +{ + volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra; + odrp[iopin->port * 8] |= (1 << (31 - iopin->pin)); +} + +extern __inline__ void +iopin_set_act(iopin_t *iopin) +{ + volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra; + odrp[iopin->port * 8] &= ~(1 << (31 - iopin->pin)); +} + +extern __inline__ uint +iopin_is_odr(iopin_t *iopin) +{ + volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra; + return (odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1; +} + +extern __inline__ uint +iopin_is_act(iopin_t *iopin) +{ + volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra; + return ((odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1; +} + +extern __inline__ void +iopin_set_ded(iopin_t *iopin) +{ + volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara; + parp[iopin->port * 8] |= (1 << (31 - iopin->pin)); +} + +extern __inline__ void +iopin_set_gen(iopin_t *iopin) +{ + volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara; + parp[iopin->port * 8] &= ~(1 << (31 - iopin->pin)); +} + +extern __inline__ uint +iopin_is_ded(iopin_t *iopin) +{ + volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara; + return (parp[iopin->port * 8] >> (31 - iopin->pin)) & 1; +} + +extern __inline__ uint +iopin_is_gen(iopin_t *iopin) +{ + volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara; + return ((parp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1; +} + +extern __inline__ void +iopin_set_opt2(iopin_t *iopin) +{ + volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora; + sorp[iopin->port * 8] |= (1 << (31 - iopin->pin)); +} + +extern __inline__ void +iopin_set_opt1(iopin_t *iopin) +{ + volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora; + sorp[iopin->port * 8] &= ~(1 << (31 - iopin->pin)); +} + +extern __inline__ uint +iopin_is_opt2(iopin_t *iopin) +{ + volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora; + return (sorp[iopin->port * 8] >> (31 - iopin->pin)) & 1; +} + +extern __inline__ uint +iopin_is_opt1(iopin_t *iopin) +{ + volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora; + return ((sorp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1; +} + +#endif /* __KERNEL__ */ + +#endif /* _ASM_IOPIN_8260_H_ */ diff --git a/arch/ppc/include/asm/iopin_85xx.h b/arch/ppc/include/asm/iopin_85xx.h new file mode 100644 index 0000000..0f07ba3 --- /dev/null +++ b/arch/ppc/include/asm/iopin_85xx.h @@ -0,0 +1,146 @@ +/* + * MPC85xx I/O port pin manipulation functions + */ + +#ifndef _ASM_IOPIN_85xx_H_ +#define _ASM_IOPIN_85xx_H_ + +#include <linux/types.h> +#include <asm/immap_85xx.h> + +#ifdef __KERNEL__ + +typedef struct { + u_char port:2; /* port number (A=0, B=1, C=2, D=3) */ + u_char pin:5; /* port pin (0-31) */ + u_char flag:1; /* for whatever */ +} iopin_t; + +#define IOPIN_PORTA 0 +#define IOPIN_PORTB 1 +#define IOPIN_PORTC 2 +#define IOPIN_PORTD 3 + +extern __inline__ void iopin_set_high (iopin_t * iopin) +{ + volatile uint *datp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.pdata; + datp[iopin->port * 8] |= (1 << (31 - iopin->pin)); +} + +extern __inline__ void iopin_set_low (iopin_t * iopin) +{ + volatile uint *datp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.pdata; + datp[iopin->port * 8] &= ~(1 << (31 - iopin->pin)); +} + +extern __inline__ uint iopin_is_high (iopin_t * iopin) +{ + volatile uint *datp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.pdata; + return (datp[iopin->port * 8] >> (31 - iopin->pin)) & 1; +} + +extern __inline__ uint iopin_is_low (iopin_t * iopin) +{ + volatile uint *datp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.pdata; + return ((datp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1; +} + +extern __inline__ void iopin_set_out (iopin_t * iopin) +{ + volatile uint *dirp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.pdira; + dirp[iopin->port * 8] |= (1 << (31 - iopin->pin)); +} + +extern __inline__ void iopin_set_in (iopin_t * iopin) +{ + volatile uint *dirp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.pdira; + dirp[iopin->port * 8] &= ~(1 << (31 - iopin->pin)); +} + +extern __inline__ uint iopin_is_out (iopin_t * iopin) +{ + volatile uint *dirp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.pdira; + return (dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1; +} + +extern __inline__ uint iopin_is_in (iopin_t * iopin) +{ + volatile uint *dirp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.pdira; + return ((dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1; +} + +extern __inline__ void iopin_set_odr (iopin_t * iopin) +{ + volatile uint *odrp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.podra; + odrp[iopin->port * 8] |= (1 << (31 - iopin->pin)); +} + +extern __inline__ void iopin_set_act (iopin_t * iopin) +{ + volatile uint *odrp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.podra; + odrp[iopin->port * 8] &= ~(1 << (31 - iopin->pin)); +} + +extern __inline__ uint iopin_is_odr (iopin_t * iopin) +{ + volatile uint *odrp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.podra; + return (odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1; +} + +extern __inline__ uint iopin_is_act (iopin_t * iopin) +{ + volatile uint *odrp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.podra; + return ((odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1; +} + +extern __inline__ void iopin_set_ded (iopin_t * iopin) +{ + volatile uint *parp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.ppara; + parp[iopin->port * 8] |= (1 << (31 - iopin->pin)); +} + +extern __inline__ void iopin_set_gen (iopin_t * iopin) +{ + volatile uint *parp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.ppara; + parp[iopin->port * 8] &= ~(1 << (31 - iopin->pin)); +} + +extern __inline__ uint iopin_is_ded (iopin_t * iopin) +{ + volatile uint *parp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.ppara; + return (parp[iopin->port * 8] >> (31 - iopin->pin)) & 1; +} + +extern __inline__ uint iopin_is_gen (iopin_t * iopin) +{ + volatile uint *parp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.ppara; + return ((parp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1; +} + +extern __inline__ void iopin_set_opt2 (iopin_t * iopin) +{ + volatile uint *sorp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.psora; + sorp[iopin->port * 8] |= (1 << (31 - iopin->pin)); +} + +extern __inline__ void iopin_set_opt1 (iopin_t * iopin) +{ + volatile uint *sorp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.psora; + sorp[iopin->port * 8] &= ~(1 << (31 - iopin->pin)); +} + +extern __inline__ uint iopin_is_opt2 (iopin_t * iopin) +{ + volatile uint *sorp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.psora; + return (sorp[iopin->port * 8] >> (31 - iopin->pin)) & 1; +} + +extern __inline__ uint iopin_is_opt1 (iopin_t * iopin) +{ + volatile uint *sorp = &((ccsr_cpm_t *) CONFIG_SYS_MPC85xx_CPM_ADDR)->im_cpm_iop.psora; + return ((sorp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1; +} + +#endif /* __KERNEL__ */ + +#endif /* _ASM_IOPIN_85xx_H_ */ diff --git a/arch/ppc/include/asm/iopin_8xx.h b/arch/ppc/include/asm/iopin_8xx.h new file mode 100644 index 0000000..3a2a682 --- /dev/null +++ b/arch/ppc/include/asm/iopin_8xx.h @@ -0,0 +1,395 @@ +/* + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * MPC8xx I/O port pin manipulation functions + * Roughly based on iopin_8260.h + */ + +#ifndef _ASM_IOPIN_8XX_H_ +#define _ASM_IOPIN_8XX_H_ + +#include <linux/types.h> +#include <asm/8xx_immap.h> + +#ifdef __KERNEL__ + +typedef struct { + u_char port:2; /* port number (A=0, B=1, C=2, D=3) */ + u_char pin:5; /* port pin (0-31) */ + u_char flag:1; /* for whatever */ +} iopin_t; + +#define IOPIN_PORTA 0 +#define IOPIN_PORTB 1 +#define IOPIN_PORTC 2 +#define IOPIN_PORTD 3 + +extern __inline__ void +iopin_set_high(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padat; + *datp |= (1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTB) { + volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbdat; + *datp |= (1 << (31 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTC) { + volatile ushort *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcdat; + *datp |= (1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTD) { + volatile ushort *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddat; + *datp |= (1 << (15 - iopin->pin)); + } +} + +extern __inline__ void +iopin_set_low(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padat; + *datp &= ~(1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTB) { + volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbdat; + *datp &= ~(1 << (31 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTC) { + volatile ushort *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcdat; + *datp &= ~(1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTD) { + volatile ushort *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddat; + *datp &= ~(1 << (15 - iopin->pin)); + } +} + +extern __inline__ uint +iopin_is_high(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padat; + return (*datp >> (15 - iopin->pin)) & 1; + } else if (iopin->port == IOPIN_PORTB) { + volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbdat; + return (*datp >> (31 - iopin->pin)) & 1; + } else if (iopin->port == IOPIN_PORTC) { + volatile ushort *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcdat; + return (*datp >> (15 - iopin->pin)) & 1; + } else if (iopin->port == IOPIN_PORTD) { + volatile ushort *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddat; + return (*datp >> (15 - iopin->pin)) & 1; + } + return 0; +} + +extern __inline__ uint +iopin_is_low(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padat; + return ((*datp >> (15 - iopin->pin)) & 1) ^ 1; + } else if (iopin->port == IOPIN_PORTB) { + volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbdat; + return ((*datp >> (31 - iopin->pin)) & 1) ^ 1; + } else if (iopin->port == IOPIN_PORTC) { + volatile ushort *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcdat; + return ((*datp >> (15 - iopin->pin)) & 1) ^ 1; + } else if (iopin->port == IOPIN_PORTD) { + volatile ushort *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddat; + return ((*datp >> (15 - iopin->pin)) & 1) ^ 1; + } + return 0; +} + +extern __inline__ void +iopin_set_out(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padir; + *dirp |= (1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTB) { + volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbdir; + *dirp |= (1 << (31 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTC) { + volatile ushort *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcdir; + *dirp |= (1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTD) { + volatile ushort *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddir; + *dirp |= (1 << (15 - iopin->pin)); + } +} + +extern __inline__ void +iopin_set_in(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padir; + *dirp &= ~(1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTB) { + volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbdir; + *dirp &= ~(1 << (31 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTC) { + volatile ushort *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcdir; + *dirp &= ~(1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTD) { + volatile ushort *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddir; + *dirp &= ~(1 << (15 - iopin->pin)); + } +} + +extern __inline__ uint +iopin_is_out(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padir; + return (*dirp >> (15 - iopin->pin)) & 1; + } else if (iopin->port == IOPIN_PORTB) { + volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbdir; + return (*dirp >> (31 - iopin->pin)) & 1; + } else if (iopin->port == IOPIN_PORTC) { + volatile ushort *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcdir; + return (*dirp >> (15 - iopin->pin)) & 1; + } else if (iopin->port == IOPIN_PORTD) { + volatile ushort *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddir; + return (*dirp >> (15 - iopin->pin)) & 1; + } + return 0; +} + +extern __inline__ uint +iopin_is_in(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_padir; + return ((*dirp >> (15 - iopin->pin)) & 1) ^ 1; + } else if (iopin->port == IOPIN_PORTB) { + volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbdir; + return ((*dirp >> (31 - iopin->pin)) & 1) ^ 1; + } else if (iopin->port == IOPIN_PORTC) { + volatile ushort *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcdir; + return ((*dirp >> (15 - iopin->pin)) & 1) ^ 1; + } else if (iopin->port == IOPIN_PORTD) { + volatile ushort *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pddir; + return ((*dirp >> (15 - iopin->pin)) & 1) ^ 1; + } + return 0; +} + +extern __inline__ void +iopin_set_odr(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_paodr; + *odrp |= (1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTB) { + volatile ushort *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbodr; + *odrp |= (1 << (31 - iopin->pin)); + } +} + +extern __inline__ void +iopin_set_act(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_paodr; + *odrp &= ~(1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTB) { + volatile ushort *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbodr; + *odrp &= ~(1 << (31 - iopin->pin)); + } +} + +extern __inline__ uint +iopin_is_odr(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_paodr; + return (*odrp >> (15 - iopin->pin)) & 1; + } else if (iopin->port == IOPIN_PORTB) { + volatile ushort *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbodr; + return (*odrp >> (31 - iopin->pin)) & 1; + } + return 0; +} + +extern __inline__ uint +iopin_is_act(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_paodr; + return ((*odrp >> (15 - iopin->pin)) & 1) ^ 1; + } else if (iopin->port == IOPIN_PORTB) { + volatile ushort *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbodr; + return ((*odrp >> (31 - iopin->pin)) & 1) ^ 1; + } + return 0; +} + +extern __inline__ void +iopin_set_ded(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_papar; + *parp |= (1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTB) { + volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbpar; + *parp |= (1 << (31 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTC) { + volatile ushort *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcpar; + *parp |= (1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTD) { + volatile ushort *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdpar; + *parp |= (1 << (15 - iopin->pin)); + } +} + +extern __inline__ void +iopin_set_gen(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_papar; + *parp &= ~(1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTB) { + volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbpar; + *parp &= ~(1 << (31 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTC) { + volatile ushort *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcpar; + *parp &= ~(1 << (15 - iopin->pin)); + } else if (iopin->port == IOPIN_PORTD) { + volatile ushort *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdpar; + *parp &= ~(1 << (15 - iopin->pin)); + } +} + +extern __inline__ uint +iopin_is_ded(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_papar; + return (*parp >> (15 - iopin->pin)) & 1; + } else if (iopin->port == IOPIN_PORTB) { + volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbpar; + return (*parp >> (31 - iopin->pin)) & 1; + } else if (iopin->port == IOPIN_PORTC) { + volatile ushort *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcpar; + return (*parp >> (15 - iopin->pin)) & 1; + } else if (iopin->port == IOPIN_PORTD) { + volatile ushort *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdpar; + return (*parp >> (15 - iopin->pin)) & 1; + } + return 0; +} + +extern __inline__ uint +iopin_is_gen(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTA) { + volatile ushort *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_papar; + return ((*parp >> (15 - iopin->pin)) & 1) ^ 1; + } else if (iopin->port == IOPIN_PORTB) { + volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_pbpar; + return ((*parp >> (31 - iopin->pin)) & 1) ^ 1; + } else if (iopin->port == IOPIN_PORTC) { + volatile ushort *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcpar; + return ((*parp >> (15 - iopin->pin)) & 1) ^ 1; + } else if (iopin->port == IOPIN_PORTD) { + volatile ushort *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdpar; + return ((*parp >> (15 - iopin->pin)) & 1) ^ 1; + } + return 0; +} + +extern __inline__ void +iopin_set_opt2(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTC) { + volatile ushort *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcso; + *sorp |= (1 << (15 - iopin->pin)); + } +} + +extern __inline__ void +iopin_set_opt1(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTC) { + volatile ushort *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcso; + *sorp &= ~(1 << (15 - iopin->pin)); + } +} + +extern __inline__ uint +iopin_is_opt2(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTC) { + volatile ushort *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcso; + return (*sorp >> (15 - iopin->pin)) & 1; + } + return 0; +} + +extern __inline__ uint +iopin_is_opt1(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTC) { + volatile ushort *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcso; + return ((*sorp >> (15 - iopin->pin)) & 1) ^ 1; + } + return 0; +} + +extern __inline__ void +iopin_set_falledge(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTC) { + volatile ushort *intp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcint; + *intp |= (1 << (15 - iopin->pin)); + } +} + +extern __inline__ void +iopin_set_anyedge(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTC) { + volatile ushort *intp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcint; + *intp &= ~(1 << (15 - iopin->pin)); + } +} + +extern __inline__ uint +iopin_is_falledge(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTC) { + volatile ushort *intp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcint; + return (*intp >> (15 - iopin->pin)) & 1; + } + return 0; +} + +extern __inline__ uint +iopin_is_anyedge(iopin_t *iopin) +{ + if (iopin->port == IOPIN_PORTC) { + volatile ushort *intp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pcint; + return ((*intp >> (15 - iopin->pin)) & 1) ^ 1; + } + return 0; +} + +#endif /* __KERNEL__ */ + +#endif /* _ASM_IOPIN_8XX_H_ */ diff --git a/arch/ppc/include/asm/m8260_pci.h b/arch/ppc/include/asm/m8260_pci.h new file mode 100644 index 0000000..45f01de --- /dev/null +++ b/arch/ppc/include/asm/m8260_pci.h @@ -0,0 +1,166 @@ + +#ifndef _PPC_KERNEL_M8260_PCI_H +#define _PPC_KERNEL_M8260_PCI_H + +#define M8265_PCIBR0 0x101ac +#define M8265_PCIBR1 0x101b0 +#define M8265_PCIMSK0 0x101c4 +#define M8265_PCIMSK1 0x101c8 + +/* Bit definitions for PCIBR registers */ + +#define PCIBR_ENABLE 0x00000001 + +/* Bit definitions for PCIMSK registers */ + +#define PCIMSK_32KB 0xFFFF8000 /* Size of window, smallest */ +#define PCIMSK_64KB 0xFFFF0000 +#define PCIMSK_128KB 0xFFFE0000 +#define PCIMSK_256KB 0xFFFC0000 +#define PCIMSK_512KB 0xFFF80000 +#define PCIMSK_1MB 0xFFF00000 +#define PCIMSK_2MB 0xFFE00000 +#define PCIMSK_4MB 0xFFC00000 +#define PCIMSK_8MB 0xFF800000 +#define PCIMSK_16MB 0xFF000000 +#define PCIMSK_32MB 0xFE000000 +#define PCIMSK_64MB 0xFC000000 +#define PCIMSK_128MB 0xF8000000 +#define PCIMSK_256MB 0xF0000000 +#define PCIMSK_512MB 0xE0000000 +#define PCIMSK_1GB 0xC0000000 /* Size of window, largest */ + + +#define M826X_SCCR_PCI_MODE_EN 0x100 + + +/* + * Outbound ATU registers (3 sets). These registers control how 60x bus (local) + * addresses are translated to PCI addresses when the MPC826x is a PCI bus + * master (initiator). + */ + +#define POTAR_REG0 0x10800 /* PCI Outbound Translation Addr registers */ +#define POTAR_REG1 0x10818 +#define POTAR_REG2 0x10830 + +#define POBAR_REG0 0x10808 /* PCI Outbound Base Addr registers */ +#define POBAR_REG1 0x10820 +#define POBAR_REG2 0x10838 + +#define POCMR_REG0 0x10810 /* PCI Outbound Comparison Mask registers */ +#define POCMR_REG1 0x10828 +#define POCMR_REG2 0x10840 + +/* Bit definitions for POMCR registers */ + +#define POCMR_MASK_4KB 0x000FFFFF +#define POCMR_MASK_8KB 0x000FFFFE +#define POCMR_MASK_16KB 0x000FFFFC +#define POCMR_MASK_32KB 0x000FFFF8 +#define POCMR_MASK_64KB 0x000FFFF0 +#define POCMR_MASK_128KB 0x000FFFE0 +#define POCMR_MASK_256KB 0x000FFFC0 +#define POCMR_MASK_512KB 0x000FFF80 +#define POCMR_MASK_1MB 0x000FFF00 +#define POCMR_MASK_2MB 0x000FFE00 +#define POCMR_MASK_4MB 0x000FFC00 +#define POCMR_MASK_8MB 0x000FF800 +#define POCMR_MASK_16MB 0x000FF000 +#define POCMR_MASK_32MB 0x000FE000 +#define POCMR_MASK_64MB 0x000FC000 +#define POCMR_MASK_128MB 0x000F8000 +#define POCMR_MASK_256MB 0x000F0000 +#define POCMR_MASK_512MB 0x000E0000 +#define POCMR_MASK_1GB 0x000C0000 + +#define POCMR_ENABLE 0x80000000 +#define POCMR_PCI_IO 0x40000000 +#define POCMR_PREFETCH_EN 0x20000000 + +/* Soft PCI reset */ + +#define PCI_GCR_REG 0x10880 + +/* Bit definitions for PCI_GCR registers */ + +#define PCIGCR_PCI_BUS_EN 0x1 + +/* + * Inbound ATU registers (2 sets). These registers control how PCI addresses + * are translated to 60x bus (local) addresses when the MPC826x is a PCI bus target. + */ + +#define PITAR_REG1 0x108D0 +#define PIBAR_REG1 0x108D8 +#define PICMR_REG1 0x108E0 +#define PITAR_REG0 0x108E8 +#define PIBAR_REG0 0x108F0 +#define PICMR_REG0 0x108F8 + +/* Bit definitions for PCI Inbound Comparison Mask registers */ + +#define PICMR_MASK_4KB 0x000FFFFF +#define PICMR_MASK_8KB 0x000FFFFE +#define PICMR_MASK_16KB 0x000FFFFC +#define PICMR_MASK_32KB 0x000FFFF8 +#define PICMR_MASK_64KB 0x000FFFF0 +#define PICMR_MASK_128KB 0x000FFFE0 +#define PICMR_MASK_256KB 0x000FFFC0 +#define PICMR_MASK_512KB 0x000FFF80 +#define PICMR_MASK_1MB 0x000FFF00 +#define PICMR_MASK_2MB 0x000FFE00 +#define PICMR_MASK_4MB 0x000FFC00 +#define PICMR_MASK_8MB 0x000FF800 +#define PICMR_MASK_16MB 0x000FF000 +#define PICMR_MASK_32MB 0x000FE000 +#define PICMR_MASK_64MB 0x000FC000 +#define PICMR_MASK_128MB 0x000F8000 +#define PICMR_MASK_256MB 0x000F0000 +#define PICMR_MASK_512MB 0x000E0000 +#define PICMR_MASK_1GB 0x000C0000 + +#define PICMR_ENABLE 0x80000000 +#define PICMR_NO_SNOOP_EN 0x40000000 +#define PICMR_PREFETCH_EN 0x20000000 + +/* PCI error Registers */ + +#define PCI_ERROR_STATUS_REG 0x10884 +#define PCI_ERROR_MASK_REG 0x10888 +#define PCI_ERROR_CONTROL_REG 0x1088C +#define PCI_ERROR_ADRS_CAPTURE_REG 0x10890 +#define PCI_ERROR_DATA_CAPTURE_REG 0x10898 +#define PCI_ERROR_CTRL_CAPTURE_REG 0x108A0 + +/* PCI error Register bit defines */ + +#define PCI_ERROR_PCI_ADDR_PAR 0x00000001 +#define PCI_ERROR_PCI_DATA_PAR_WR 0x00000002 +#define PCI_ERROR_PCI_DATA_PAR_RD 0x00000004 +#define PCI_ERROR_PCI_NO_RSP 0x00000008 +#define PCI_ERROR_PCI_TAR_ABT 0x00000010 +#define PCI_ERROR_PCI_SERR 0x00000020 +#define PCI_ERROR_PCI_PERR_RD 0x00000040 +#define PCI_ERROR_PCI_PERR_WR 0x00000080 +#define PCI_ERROR_I2O_OFQO 0x00000100 +#define PCI_ERROR_I2O_IPQO 0x00000200 +#define PCI_ERROR_IRA 0x00000400 +#define PCI_ERROR_NMI 0x00000800 +#define PCI_ERROR_I2O_DBMC 0x00001000 + +/* + * Register pair used to generate configuration cycles on the PCI bus + * and access the MPC826x's own PCI configuration registers. + */ + +#define PCI_CFG_ADDR_REG 0x10900 +#define PCI_CFG_DATA_REG 0x10904 + +/* Bus parking decides where the bus control sits when idle */ +/* If modifying memory controllers for PCI park on the core */ + +#define PPC_ACR_BUS_PARK_CORE 0x6 +#define PPC_ACR_BUS_PARK_PCI 0x3 + +#endif /* _PPC_KERNEL_M8260_PCI_H */ diff --git a/arch/ppc/include/asm/mc146818rtc.h b/arch/ppc/include/asm/mc146818rtc.h new file mode 100644 index 0000000..5f806c4 --- /dev/null +++ b/arch/ppc/include/asm/mc146818rtc.h @@ -0,0 +1,27 @@ +/* + * Machine dependent access functions for RTC registers. + */ +#ifndef __ASM_PPC_MC146818RTC_H +#define __ASM_PPC_MC146818RTC_H + +#include <asm/io.h> + +#ifndef RTC_PORT +#define RTC_PORT(x) (0x70 + (x)) +#define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */ +#endif + +/* + * The yet supported machines all access the RTC index register via + * an ISA port access but the way to access the date register differs ... + */ +#define CMOS_READ(addr) ({ \ +outb_p((addr),RTC_PORT(0)); \ +inb_p(RTC_PORT(1)); \ +}) +#define CMOS_WRITE(val, addr) ({ \ +outb_p((addr),RTC_PORT(0)); \ +outb_p((val),RTC_PORT(1)); \ +}) + +#endif /* __ASM_PPC_MC146818RTC_H */ diff --git a/arch/ppc/include/asm/mmu.h b/arch/ppc/include/asm/mmu.h new file mode 100644 index 0000000..ce7f081 --- /dev/null +++ b/arch/ppc/include/asm/mmu.h @@ -0,0 +1,763 @@ +/* + * PowerPC memory management structures + */ + +#ifndef _PPC_MMU_H_ +#define _PPC_MMU_H_ + +#include <linux/config.h> + +#ifndef __ASSEMBLY__ +/* Hardware Page Table Entry */ +typedef struct _PTE { +#ifdef CONFIG_PPC64BRIDGE + unsigned long long vsid:52; + unsigned long api:5; + unsigned long :5; + unsigned long h:1; + unsigned long v:1; + unsigned long long rpn:52; +#else /* CONFIG_PPC64BRIDGE */ + unsigned long v:1; /* Entry is valid */ + unsigned long vsid:24; /* Virtual segment identifier */ + unsigned long h:1; /* Hash algorithm indicator */ + unsigned long api:6; /* Abbreviated page index */ + unsigned long rpn:20; /* Real (physical) page number */ +#endif /* CONFIG_PPC64BRIDGE */ + unsigned long :3; /* Unused */ + unsigned long r:1; /* Referenced */ + unsigned long c:1; /* Changed */ + unsigned long w:1; /* Write-thru cache mode */ + unsigned long i:1; /* Cache inhibited */ + unsigned long m:1; /* Memory coherence */ + unsigned long g:1; /* Guarded */ + unsigned long :1; /* Unused */ + unsigned long pp:2; /* Page protection */ +} PTE; + +/* Values for PP (assumes Ks=0, Kp=1) */ +#define PP_RWXX 0 /* Supervisor read/write, User none */ +#define PP_RWRX 1 /* Supervisor read/write, User read */ +#define PP_RWRW 2 /* Supervisor read/write, User read/write */ +#define PP_RXRX 3 /* Supervisor read, User read */ + +/* Segment Register */ +typedef struct _SEGREG { + unsigned long t:1; /* Normal or I/O type */ + unsigned long ks:1; /* Supervisor 'key' (normally 0) */ + unsigned long kp:1; /* User 'key' (normally 1) */ + unsigned long n:1; /* No-execute */ + unsigned long :4; /* Unused */ + unsigned long vsid:24; /* Virtual Segment Identifier */ +} SEGREG; + +/* Block Address Translation (BAT) Registers */ +typedef struct _P601_BATU { /* Upper part of BAT for 601 processor */ + unsigned long bepi:15; /* Effective page index (virtual address) */ + unsigned long :8; /* unused */ + unsigned long w:1; + unsigned long i:1; /* Cache inhibit */ + unsigned long m:1; /* Memory coherence */ + unsigned long ks:1; /* Supervisor key (normally 0) */ + unsigned long kp:1; /* User key (normally 1) */ + unsigned long pp:2; /* Page access protections */ +} P601_BATU; + +typedef struct _BATU { /* Upper part of BAT (all except 601) */ +#ifdef CONFIG_PPC64BRIDGE + unsigned long long bepi:47; +#else /* CONFIG_PPC64BRIDGE */ + unsigned long bepi:15; /* Effective page index (virtual address) */ +#endif /* CONFIG_PPC64BRIDGE */ + unsigned long :4; /* Unused */ + unsigned long bl:11; /* Block size mask */ + unsigned long vs:1; /* Supervisor valid */ + unsigned long vp:1; /* User valid */ +} BATU; + +typedef struct _P601_BATL { /* Lower part of BAT for 601 processor */ + unsigned long brpn:15; /* Real page index (physical address) */ + unsigned long :10; /* Unused */ + unsigned long v:1; /* Valid bit */ + unsigned long bl:6; /* Block size mask */ +} P601_BATL; + +typedef struct _BATL { /* Lower part of BAT (all except 601) */ +#ifdef CONFIG_PPC64BRIDGE + unsigned long long brpn:47; +#else /* CONFIG_PPC64BRIDGE */ + unsigned long brpn:15; /* Real page index (physical address) */ +#endif /* CONFIG_PPC64BRIDGE */ + unsigned long :10; /* Unused */ + unsigned long w:1; /* Write-thru cache */ + unsigned long i:1; /* Cache inhibit */ + unsigned long m:1; /* Memory coherence */ + unsigned long g:1; /* Guarded (MBZ in IBAT) */ + unsigned long :1; /* Unused */ + unsigned long pp:2; /* Page access protections */ +} BATL; + +typedef struct _BAT { + BATU batu; /* Upper register */ + BATL batl; /* Lower register */ +} BAT; + +typedef struct _P601_BAT { + P601_BATU batu; /* Upper register */ + P601_BATL batl; /* Lower register */ +} P601_BAT; + +/* + * Simulated two-level MMU. This structure is used by the kernel + * to keep track of MMU mappings and is used to update/maintain + * the hardware HASH table which is really a cache of mappings. + * + * The simulated structures mimic the hardware available on other + * platforms, notably the 80x86 and 680x0. + */ + +typedef struct _pte { + unsigned long page_num:20; + unsigned long flags:12; /* Page flags (some unused bits) */ +} pte; + +#define PD_SHIFT (10+12) /* Page directory */ +#define PD_MASK 0x02FF +#define PT_SHIFT (12) /* Page Table */ +#define PT_MASK 0x02FF +#define PG_SHIFT (12) /* Page Entry */ + + +/* MMU context */ + +typedef struct _MMU_context { + SEGREG segs[16]; /* Segment registers */ + pte **pmap; /* Two-level page-map structure */ +} MMU_context; + +extern void _tlbie(unsigned long va); /* invalidate a TLB entry */ +extern void _tlbia(void); /* invalidate all TLB entries */ + +#ifdef CONFIG_ADDR_MAP +extern void init_addr_map(void); +#endif + +typedef enum { + IBAT0 = 0, IBAT1, IBAT2, IBAT3, + DBAT0, DBAT1, DBAT2, DBAT3, +#ifdef CONFIG_HIGH_BATS + IBAT4, IBAT5, IBAT6, IBAT7, + DBAT4, DBAT5, DBAT6, DBAT7 +#endif +} ppc_bat_t; + +extern int read_bat(ppc_bat_t bat, unsigned long *upper, unsigned long *lower); +extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower); +extern void print_bats(void); + +#endif /* __ASSEMBLY__ */ + +#define BATU_VS 0x00000002 +#define BATU_VP 0x00000001 +#define BATU_INVALID 0x00000000 + +#define BATL_WRITETHROUGH 0x00000040 +#define BATL_CACHEINHIBIT 0x00000020 +#define BATL_MEMCOHERENCE 0x00000010 +#define BATL_GUARDEDSTORAGE 0x00000008 +#define BATL_NO_ACCESS 0x00000000 + +#define BATL_PP_MSK 0x00000003 +#define BATL_PP_00 0x00000000 /* No access */ +#define BATL_PP_01 0x00000001 /* Read-only */ +#define BATL_PP_10 0x00000002 /* Read-write */ +#define BATL_PP_11 0x00000003 + +#define BATL_PP_NO_ACCESS BATL_PP_00 +#define BATL_PP_RO BATL_PP_01 +#define BATL_PP_RW BATL_PP_10 + +/* BAT Block size values */ +#define BATU_BL_128K 0x00000000 +#define BATU_BL_256K 0x00000004 +#define BATU_BL_512K 0x0000000c +#define BATU_BL_1M 0x0000001c +#define BATU_BL_2M 0x0000003c +#define BATU_BL_4M 0x0000007c +#define BATU_BL_8M 0x000000fc +#define BATU_BL_16M 0x000001fc +#define BATU_BL_32M 0x000003fc +#define BATU_BL_64M 0x000007fc +#define BATU_BL_128M 0x00000ffc +#define BATU_BL_256M 0x00001ffc + +/* Block lengths for processors that support extended block length */ +#ifdef HID0_XBSEN +#define BATU_BL_512M 0x00003ffc +#define BATU_BL_1G 0x00007ffc +#define BATU_BL_2G 0x0000fffc +#define BATU_BL_4G 0x0001fffc +#define BATU_BL_MAX BATU_BL_4G +#else +#define BATU_BL_MAX BATU_BL_256M +#endif + +/* BAT Access Protection */ +#define BPP_XX 0x00 /* No access */ +#define BPP_RX 0x01 /* Read only */ +#define BPP_RW 0x02 /* Read/write */ + +/* Macros to get values from BATs, once data is in the BAT register format */ +#define BATU_VALID(x) (x & 0x3) +#define BATU_VADDR(x) (x & 0xfffe0000) +#define BATL_PADDR(x) ((phys_addr_t)((x & 0xfffe0000) \ + | ((x & 0x0e00ULL) << 24) \ + | ((x & 0x04ULL) << 30))) +#define BATU_SIZE(x) (1ULL << (fls((x & BATU_BL_MAX) >> 2) + 17)) + +/* bytes into BATU_BL */ +#define TO_BATU_BL(x) \ + (u32)((((1ull << __ilog2_u64((u64)x)) / (128 * 1024)) - 1) * 4) + +/* Used to set up SDR1 register */ +#define HASH_TABLE_SIZE_64K 0x00010000 +#define HASH_TABLE_SIZE_128K 0x00020000 +#define HASH_TABLE_SIZE_256K 0x00040000 +#define HASH_TABLE_SIZE_512K 0x00080000 +#define HASH_TABLE_SIZE_1M 0x00100000 +#define HASH_TABLE_SIZE_2M 0x00200000 +#define HASH_TABLE_SIZE_4M 0x00400000 +#define HASH_TABLE_MASK_64K 0x000 +#define HASH_TABLE_MASK_128K 0x001 +#define HASH_TABLE_MASK_256K 0x003 +#define HASH_TABLE_MASK_512K 0x007 +#define HASH_TABLE_MASK_1M 0x00F +#define HASH_TABLE_MASK_2M 0x01F +#define HASH_TABLE_MASK_4M 0x03F + +/* Control/status registers for the MPC8xx. + * A write operation to these registers causes serialized access. + * During software tablewalk, the registers used perform mask/shift-add + * operations when written/read. A TLB entry is created when the Mx_RPN + * is written, and the contents of several registers are used to + * create the entry. + */ +#define MI_CTR 784 /* Instruction TLB control register */ +#define MI_GPM 0x80000000 /* Set domain manager mode */ +#define MI_PPM 0x40000000 /* Set subpage protection */ +#define MI_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */ +#define MI_RSV4I 0x08000000 /* Reserve 4 TLB entries */ +#define MI_PPCS 0x02000000 /* Use MI_RPN prob/priv state */ +#define MI_IDXMASK 0x00001f00 /* TLB index to be loaded */ +#define MI_RESETVAL 0x00000000 /* Value of register at reset */ + +/* These are the Ks and Kp from the PowerPC books. For proper operation, + * Ks = 0, Kp = 1. + */ +#define MI_AP 786 +#define MI_Ks 0x80000000 /* Should not be set */ +#define MI_Kp 0x40000000 /* Should always be set */ + +/* The effective page number register. When read, contains the information + * about the last instruction TLB miss. When MI_RPN is written, bits in + * this register are used to create the TLB entry. + */ +#define MI_EPN 787 +#define MI_EPNMASK 0xfffff000 /* Effective page number for entry */ +#define MI_EVALID 0x00000200 /* Entry is valid */ +#define MI_ASIDMASK 0x0000000f /* ASID match value */ + /* Reset value is undefined */ + +/* A "level 1" or "segment" or whatever you want to call it register. + * For the instruction TLB, it contains bits that get loaded into the + * TLB entry when the MI_RPN is written. + */ +#define MI_TWC 789 +#define MI_APG 0x000001e0 /* Access protection group (0) */ +#define MI_GUARDED 0x00000010 /* Guarded storage */ +#define MI_PSMASK 0x0000000c /* Mask of page size bits */ +#define MI_PS8MEG 0x0000000c /* 8M page size */ +#define MI_PS512K 0x00000004 /* 512K page size */ +#define MI_PS4K_16K 0x00000000 /* 4K or 16K page size */ +#define MI_SVALID 0x00000001 /* Segment entry is valid */ + /* Reset value is undefined */ + +/* Real page number. Defined by the pte. Writing this register + * causes a TLB entry to be created for the instruction TLB, using + * additional information from the MI_EPN, and MI_TWC registers. + */ +#define MI_RPN 790 + +/* Define an RPN value for mapping kernel memory to large virtual + * pages for boot initialization. This has real page number of 0, + * large page size, shared page, cache enabled, and valid. + * Also mark all subpages valid and write access. + */ +#define MI_BOOTINIT 0x000001fd + +#define MD_CTR 792 /* Data TLB control register */ +#define MD_GPM 0x80000000 /* Set domain manager mode */ +#define MD_PPM 0x40000000 /* Set subpage protection */ +#define MD_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */ +#define MD_WTDEF 0x10000000 /* Set writethrough when MMU dis */ +#define MD_RSV4I 0x08000000 /* Reserve 4 TLB entries */ +#define MD_TWAM 0x04000000 /* Use 4K page hardware assist */ +#define MD_PPCS 0x02000000 /* Use MI_RPN prob/priv state */ +#define MD_IDXMASK 0x00001f00 /* TLB index to be loaded */ +#define MD_RESETVAL 0x04000000 /* Value of register at reset */ + +#define M_CASID 793 /* Address space ID (context) to match */ +#define MC_ASIDMASK 0x0000000f /* Bits used for ASID value */ + + +/* These are the Ks and Kp from the PowerPC books. For proper operation, + * Ks = 0, Kp = 1. + */ +#define MD_AP 794 +#define MD_Ks 0x80000000 /* Should not be set */ +#define MD_Kp 0x40000000 /* Should always be set */ + +/* The effective page number register. When read, contains the information + * about the last instruction TLB miss. When MD_RPN is written, bits in + * this register are used to create the TLB entry. + */ +#define MD_EPN 795 +#define MD_EPNMASK 0xfffff000 /* Effective page number for entry */ +#define MD_EVALID 0x00000200 /* Entry is valid */ +#define MD_ASIDMASK 0x0000000f /* ASID match value */ + /* Reset value is undefined */ + +/* The pointer to the base address of the first level page table. + * During a software tablewalk, reading this register provides the address + * of the entry associated with MD_EPN. + */ +#define M_TWB 796 +#define M_L1TB 0xfffff000 /* Level 1 table base address */ +#define M_L1INDX 0x00000ffc /* Level 1 index, when read */ + /* Reset value is undefined */ + +/* A "level 1" or "segment" or whatever you want to call it register. + * For the data TLB, it contains bits that get loaded into the TLB entry + * when the MD_RPN is written. It is also provides the hardware assist + * for finding the PTE address during software tablewalk. + */ +#define MD_TWC 797 +#define MD_L2TB 0xfffff000 /* Level 2 table base address */ +#define MD_L2INDX 0xfffffe00 /* Level 2 index (*pte), when read */ +#define MD_APG 0x000001e0 /* Access protection group (0) */ +#define MD_GUARDED 0x00000010 /* Guarded storage */ +#define MD_PSMASK 0x0000000c /* Mask of page size bits */ +#define MD_PS8MEG 0x0000000c /* 8M page size */ +#define MD_PS512K 0x00000004 /* 512K page size */ +#define MD_PS4K_16K 0x00000000 /* 4K or 16K page size */ +#define MD_WT 0x00000002 /* Use writethrough page attribute */ +#define MD_SVALID 0x00000001 /* Segment entry is valid */ + /* Reset value is undefined */ + + +/* Real page number. Defined by the pte. Writing this register + * causes a TLB entry to be created for the data TLB, using + * additional information from the MD_EPN, and MD_TWC registers. + */ +#define MD_RPN 798 + +/* This is a temporary storage register that could be used to save + * a processor working register during a tablewalk. + */ +#define M_TW 799 + +/* + * At present, all PowerPC 400-class processors share a similar TLB + * architecture. The instruction and data sides share a unified, + * 64-entry, fully-associative TLB which is maintained totally under + * software control. In addition, the instruction side has a + * hardware-managed, 4-entry, fully- associative TLB which serves as a + * first level to the shared TLB. These two TLBs are known as the UTLB + * and ITLB, respectively. + */ + +#define PPC4XX_TLB_SIZE 64 + +/* + * TLB entries are defined by a "high" tag portion and a "low" data + * portion. On all architectures, the data portion is 32-bits. + * + * TLB entries are managed entirely under software control by reading, + * writing, and searchoing using the 4xx-specific tlbre, tlbwr, and tlbsx + * instructions. + */ + +/* + * FSL Book-E support + */ + +#define MAS0_TLBSEL_MSK 0x30000000 +#define MAS0_TLBSEL(x) ((x << 28) & MAS0_TLBSEL_MSK) +#define MAS0_ESEL_MSK 0x0FFF0000 +#define MAS0_ESEL(x) ((x << 16) & MAS0_ESEL_MSK) +#define MAS0_NV(x) ((x) & 0x00000FFF) + +#define MAS1_VALID 0x80000000 +#define MAS1_IPROT 0x40000000 +#define MAS1_TID(x) ((x << 16) & 0x3FFF0000) +#define MAS1_TS 0x00001000 +#define MAS1_TSIZE(x) ((x << 8) & 0x00000F00) + +#define MAS2_EPN 0xFFFFF000 +#define MAS2_X0 0x00000040 +#define MAS2_X1 0x00000020 +#define MAS2_W 0x00000010 +#define MAS2_I 0x00000008 +#define MAS2_M 0x00000004 +#define MAS2_G 0x00000002 +#define MAS2_E 0x00000001 + +#define MAS3_RPN 0xFFFFF000 +#define MAS3_U0 0x00000200 +#define MAS3_U1 0x00000100 +#define MAS3_U2 0x00000080 +#define MAS3_U3 0x00000040 +#define MAS3_UX 0x00000020 +#define MAS3_SX 0x00000010 +#define MAS3_UW 0x00000008 +#define MAS3_SW 0x00000004 +#define MAS3_UR 0x00000002 +#define MAS3_SR 0x00000001 + +#define MAS4_TLBSELD(x) MAS0_TLBSEL(x) +#define MAS4_TIDDSEL 0x000F0000 +#define MAS4_TSIZED(x) MAS1_TSIZE(x) +#define MAS4_X0D 0x00000040 +#define MAS4_X1D 0x00000020 +#define MAS4_WD 0x00000010 +#define MAS4_ID 0x00000008 +#define MAS4_MD 0x00000004 +#define MAS4_GD 0x00000002 +#define MAS4_ED 0x00000001 + +#define MAS6_SPID0 0x3FFF0000 +#define MAS6_SPID1 0x00007FFE +#define MAS6_SAS 0x00000001 +#define MAS6_SPID MAS6_SPID0 + +#define MAS7_RPN 0xFFFFFFFF + +#define FSL_BOOKE_MAS0(tlbsel,esel,nv) \ + (MAS0_TLBSEL(tlbsel) | MAS0_ESEL(esel) | MAS0_NV(nv)) +#define FSL_BOOKE_MAS1(v,iprot,tid,ts,tsize) \ + ((((v) << 31) & MAS1_VALID) |\ + (((iprot) << 30) & MAS1_IPROT) |\ + (MAS1_TID(tid)) |\ + (((ts) << 12) & MAS1_TS) |\ + (MAS1_TSIZE(tsize))) +#define FSL_BOOKE_MAS2(epn, wimge) \ + (((epn) & MAS3_RPN) | (wimge)) +#define FSL_BOOKE_MAS3(rpn, user, perms) \ + (((rpn) & MAS3_RPN) | (user) | (perms)) +#define FSL_BOOKE_MAS7(rpn) \ + (((u64)(rpn)) >> 32) + +#define BOOKE_PAGESZ_1K 0 +#define BOOKE_PAGESZ_4K 1 +#define BOOKE_PAGESZ_16K 2 +#define BOOKE_PAGESZ_64K 3 +#define BOOKE_PAGESZ_256K 4 +#define BOOKE_PAGESZ_1M 5 +#define BOOKE_PAGESZ_4M 6 +#define BOOKE_PAGESZ_16M 7 +#define BOOKE_PAGESZ_64M 8 +#define BOOKE_PAGESZ_256M 9 +#define BOOKE_PAGESZ_1G 10 +#define BOOKE_PAGESZ_4G 11 +#define BOOKE_PAGESZ_16GB 12 +#define BOOKE_PAGESZ_64GB 13 +#define BOOKE_PAGESZ_256GB 14 +#define BOOKE_PAGESZ_1TB 15 + +#ifdef CONFIG_E500 +#ifndef __ASSEMBLY__ +extern void set_tlb(u8 tlb, u32 epn, u64 rpn, + u8 perms, u8 wimge, + u8 ts, u8 esel, u8 tsize, u8 iprot); +extern void disable_tlb(u8 esel); +extern void invalidate_tlb(u8 tlb); +extern void init_tlbs(void); +extern int find_tlb_idx(void *addr, u8 tlbsel); +extern void init_used_tlb_cams(void); +extern int find_free_tlbcam(void); + +extern unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg); + +extern void write_tlb(u32 _mas0, u32 _mas1, u32 _mas2, u32 _mas3, u32 _mas7); + +#define SET_TLB_ENTRY(_tlb, _epn, _rpn, _perms, _wimge, _ts, _esel, _sz, _iprot) \ + { .mas0 = FSL_BOOKE_MAS0(_tlb, _esel, 0), \ + .mas1 = FSL_BOOKE_MAS1(1, _iprot, 0, _ts, _sz), \ + .mas2 = FSL_BOOKE_MAS2(_epn, _wimge), \ + .mas3 = FSL_BOOKE_MAS3(_rpn, 0, _perms), \ + .mas7 = FSL_BOOKE_MAS7(_rpn), } + +struct fsl_e_tlb_entry { + u32 mas0; + u32 mas1; + u32 mas2; + u32 mas3; + u32 mas7; +}; + +extern struct fsl_e_tlb_entry tlb_table[]; +extern int num_tlb_entries; +#endif +#endif + +#ifdef CONFIG_E300 +#define LAWAR_EN 0x80000000 +#define LAWAR_SIZE 0x0000003F + +#define LAWAR_TRGT_IF_PCI 0x00000000 +#define LAWAR_TRGT_IF_PCI1 0x00000000 +#define LAWAR_TRGT_IF_PCIX 0x00000000 +#define LAWAR_TRGT_IF_PCI2 0x00100000 +#define LAWAR_TRGT_IF_PCIE1 0x00200000 +#define LAWAR_TRGT_IF_PCIE2 0x00100000 +#define LAWAR_TRGT_IF_PCIE3 0x00300000 +#define LAWAR_TRGT_IF_LBC 0x00400000 +#define LAWAR_TRGT_IF_CCSR 0x00800000 +#define LAWAR_TRGT_IF_DDR_INTERLEAVED 0x00B00000 +#define LAWAR_TRGT_IF_RIO 0x00c00000 +#define LAWAR_TRGT_IF_DDR 0x00f00000 +#define LAWAR_TRGT_IF_DDR1 0x00f00000 +#define LAWAR_TRGT_IF_DDR2 0x01600000 + +#define LAWAR_SIZE_BASE 0xa +#define LAWAR_SIZE_4K (LAWAR_SIZE_BASE+1) +#define LAWAR_SIZE_8K (LAWAR_SIZE_BASE+2) +#define LAWAR_SIZE_16K (LAWAR_SIZE_BASE+3) +#define LAWAR_SIZE_32K (LAWAR_SIZE_BASE+4) +#define LAWAR_SIZE_64K (LAWAR_SIZE_BASE+5) +#define LAWAR_SIZE_128K (LAWAR_SIZE_BASE+6) +#define LAWAR_SIZE_256K (LAWAR_SIZE_BASE+7) +#define LAWAR_SIZE_512K (LAWAR_SIZE_BASE+8) +#define LAWAR_SIZE_1M (LAWAR_SIZE_BASE+9) +#define LAWAR_SIZE_2M (LAWAR_SIZE_BASE+10) +#define LAWAR_SIZE_4M (LAWAR_SIZE_BASE+11) +#define LAWAR_SIZE_8M (LAWAR_SIZE_BASE+12) +#define LAWAR_SIZE_16M (LAWAR_SIZE_BASE+13) +#define LAWAR_SIZE_32M (LAWAR_SIZE_BASE+14) +#define LAWAR_SIZE_64M (LAWAR_SIZE_BASE+15) +#define LAWAR_SIZE_128M (LAWAR_SIZE_BASE+16) +#define LAWAR_SIZE_256M (LAWAR_SIZE_BASE+17) +#define LAWAR_SIZE_512M (LAWAR_SIZE_BASE+18) +#define LAWAR_SIZE_1G (LAWAR_SIZE_BASE+19) +#define LAWAR_SIZE_2G (LAWAR_SIZE_BASE+20) +#define LAWAR_SIZE_4G (LAWAR_SIZE_BASE+21) +#define LAWAR_SIZE_8G (LAWAR_SIZE_BASE+22) +#define LAWAR_SIZE_16G (LAWAR_SIZE_BASE+23) +#define LAWAR_SIZE_32G (LAWAR_SIZE_BASE+24) +#endif + +#ifdef CONFIG_440 +/* General */ +#define TLB_VALID 0x00000200 + +/* Supported page sizes */ + +#define SZ_1K 0x00000000 +#define SZ_4K 0x00000010 +#define SZ_16K 0x00000020 +#define SZ_64K 0x00000030 +#define SZ_256K 0x00000040 +#define SZ_1M 0x00000050 +#define SZ_16M 0x00000070 +#define SZ_256M 0x00000090 + +/* Storage attributes */ +#define SA_W 0x00000800 /* Write-through */ +#define SA_I 0x00000400 /* Caching inhibited */ +#define SA_M 0x00000200 /* Memory coherence */ +#define SA_G 0x00000100 /* Guarded */ +#define SA_E 0x00000080 /* Endian */ + +/* Access control */ +#define AC_X 0x00000024 /* Execute */ +#define AC_W 0x00000012 /* Write */ +#define AC_R 0x00000009 /* Read */ + +/* Some handy macros */ + +#define EPN(e) ((e) & 0xfffffc00) +#define TLB0(epn,sz) ((EPN((epn)) | (sz) | TLB_VALID )) +#define TLB1(rpn,erpn) (((rpn) & 0xfffffc00) | (erpn)) +#define TLB2(a) ((a) & 0x00000fbf) + +#define tlbtab_start\ + mflr r1 ;\ + bl 0f ; + +#define tlbtab_end\ + .long 0, 0, 0 ;\ +0: mflr r0 ;\ + mtlr r1 ;\ + blr ; + +#define tlbentry(epn,sz,rpn,erpn,attr)\ + .long TLB0(epn,sz),TLB1(rpn,erpn),TLB2(attr) + +/*----------------------------------------------------------------------------+ +| TLB specific defines. ++----------------------------------------------------------------------------*/ +#define TLB_256MB_ALIGN_MASK 0xFF0000000ULL +#define TLB_16MB_ALIGN_MASK 0xFFF000000ULL +#define TLB_1MB_ALIGN_MASK 0xFFFF00000ULL +#define TLB_256KB_ALIGN_MASK 0xFFFFC0000ULL +#define TLB_64KB_ALIGN_MASK 0xFFFFF0000ULL +#define TLB_16KB_ALIGN_MASK 0xFFFFFC000ULL +#define TLB_4KB_ALIGN_MASK 0xFFFFFF000ULL +#define TLB_1KB_ALIGN_MASK 0xFFFFFFC00ULL +#define TLB_256MB_SIZE 0x10000000 +#define TLB_16MB_SIZE 0x01000000 +#define TLB_1MB_SIZE 0x00100000 +#define TLB_256KB_SIZE 0x00040000 +#define TLB_64KB_SIZE 0x00010000 +#define TLB_16KB_SIZE 0x00004000 +#define TLB_4KB_SIZE 0x00001000 +#define TLB_1KB_SIZE 0x00000400 + +#define TLB_WORD0_EPN_MASK 0xFFFFFC00 +#define TLB_WORD0_EPN_ENCODE(n) (((unsigned long)(n))&0xFFFFFC00) +#define TLB_WORD0_EPN_DECODE(n) (((unsigned long)(n))&0xFFFFFC00) +#define TLB_WORD0_V_MASK 0x00000200 +#define TLB_WORD0_V_ENABLE 0x00000200 +#define TLB_WORD0_V_DISABLE 0x00000000 +#define TLB_WORD0_TS_MASK 0x00000100 +#define TLB_WORD0_TS_1 0x00000100 +#define TLB_WORD0_TS_0 0x00000000 +#define TLB_WORD0_SIZE_MASK 0x000000F0 +#define TLB_WORD0_SIZE_1KB 0x00000000 +#define TLB_WORD0_SIZE_4KB 0x00000010 +#define TLB_WORD0_SIZE_16KB 0x00000020 +#define TLB_WORD0_SIZE_64KB 0x00000030 +#define TLB_WORD0_SIZE_256KB 0x00000040 +#define TLB_WORD0_SIZE_1MB 0x00000050 +#define TLB_WORD0_SIZE_16MB 0x00000070 +#define TLB_WORD0_SIZE_256MB 0x00000090 +#define TLB_WORD0_TPAR_MASK 0x0000000F +#define TLB_WORD0_TPAR_ENCODE(n) ((((unsigned long)(n))&0x0F)<<0) +#define TLB_WORD0_TPAR_DECODE(n) ((((unsigned long)(n))>>0)&0x0F) + +#define TLB_WORD1_RPN_MASK 0xFFFFFC00 +#define TLB_WORD1_RPN_ENCODE(n) (((unsigned long)(n))&0xFFFFFC00) +#define TLB_WORD1_RPN_DECODE(n) (((unsigned long)(n))&0xFFFFFC00) +#define TLB_WORD1_PAR1_MASK 0x00000300 +#define TLB_WORD1_PAR1_ENCODE(n) ((((unsigned long)(n))&0x03)<<8) +#define TLB_WORD1_PAR1_DECODE(n) ((((unsigned long)(n))>>8)&0x03) +#define TLB_WORD1_PAR1_0 0x00000000 +#define TLB_WORD1_PAR1_1 0x00000100 +#define TLB_WORD1_PAR1_2 0x00000200 +#define TLB_WORD1_PAR1_3 0x00000300 +#define TLB_WORD1_ERPN_MASK 0x0000000F +#define TLB_WORD1_ERPN_ENCODE(n) ((((unsigned long)(n))&0x0F)<<0) +#define TLB_WORD1_ERPN_DECODE(n) ((((unsigned long)(n))>>0)&0x0F) + +#define TLB_WORD2_PAR2_MASK 0xC0000000 +#define TLB_WORD2_PAR2_ENCODE(n) ((((unsigned long)(n))&0x03)<<30) +#define TLB_WORD2_PAR2_DECODE(n) ((((unsigned long)(n))>>30)&0x03) +#define TLB_WORD2_PAR2_0 0x00000000 +#define TLB_WORD2_PAR2_1 0x40000000 +#define TLB_WORD2_PAR2_2 0x80000000 +#define TLB_WORD2_PAR2_3 0xC0000000 +#define TLB_WORD2_U0_MASK 0x00008000 +#define TLB_WORD2_U0_ENABLE 0x00008000 +#define TLB_WORD2_U0_DISABLE 0x00000000 +#define TLB_WORD2_U1_MASK 0x00004000 +#define TLB_WORD2_U1_ENABLE 0x00004000 +#define TLB_WORD2_U1_DISABLE 0x00000000 +#define TLB_WORD2_U2_MASK 0x00002000 +#define TLB_WORD2_U2_ENABLE 0x00002000 +#define TLB_WORD2_U2_DISABLE 0x00000000 +#define TLB_WORD2_U3_MASK 0x00001000 +#define TLB_WORD2_U3_ENABLE 0x00001000 +#define TLB_WORD2_U3_DISABLE 0x00000000 +#define TLB_WORD2_W_MASK 0x00000800 +#define TLB_WORD2_W_ENABLE 0x00000800 +#define TLB_WORD2_W_DISABLE 0x00000000 +#define TLB_WORD2_I_MASK 0x00000400 +#define TLB_WORD2_I_ENABLE 0x00000400 +#define TLB_WORD2_I_DISABLE 0x00000000 +#define TLB_WORD2_M_MASK 0x00000200 +#define TLB_WORD2_M_ENABLE 0x00000200 +#define TLB_WORD2_M_DISABLE 0x00000000 +#define TLB_WORD2_G_MASK 0x00000100 +#define TLB_WORD2_G_ENABLE 0x00000100 +#define TLB_WORD2_G_DISABLE 0x00000000 +#define TLB_WORD2_E_MASK 0x00000080 +#define TLB_WORD2_E_ENABLE 0x00000080 +#define TLB_WORD2_E_DISABLE 0x00000000 +#define TLB_WORD2_UX_MASK 0x00000020 +#define TLB_WORD2_UX_ENABLE 0x00000020 +#define TLB_WORD2_UX_DISABLE 0x00000000 +#define TLB_WORD2_UW_MASK 0x00000010 +#define TLB_WORD2_UW_ENABLE 0x00000010 +#define TLB_WORD2_UW_DISABLE 0x00000000 +#define TLB_WORD2_UR_MASK 0x00000008 +#define TLB_WORD2_UR_ENABLE 0x00000008 +#define TLB_WORD2_UR_DISABLE 0x00000000 +#define TLB_WORD2_SX_MASK 0x00000004 +#define TLB_WORD2_SX_ENABLE 0x00000004 +#define TLB_WORD2_SX_DISABLE 0x00000000 +#define TLB_WORD2_SW_MASK 0x00000002 +#define TLB_WORD2_SW_ENABLE 0x00000002 +#define TLB_WORD2_SW_DISABLE 0x00000000 +#define TLB_WORD2_SR_MASK 0x00000001 +#define TLB_WORD2_SR_ENABLE 0x00000001 +#define TLB_WORD2_SR_DISABLE 0x00000000 + +/*----------------------------------------------------------------------------+ +| Following instructions are not available in Book E mode of the GNU assembler. ++----------------------------------------------------------------------------*/ +#define DCCCI(ra,rb) .long 0x7c000000|\ + (ra<<16)|(rb<<11)|(454<<1) + +#define ICCCI(ra,rb) .long 0x7c000000|\ + (ra<<16)|(rb<<11)|(966<<1) + +#define DCREAD(rt,ra,rb) .long 0x7c000000|\ + (rt<<21)|(ra<<16)|(rb<<11)|(486<<1) + +#define ICREAD(ra,rb) .long 0x7c000000|\ + (ra<<16)|(rb<<11)|(998<<1) + +#define TLBSX(rt,ra,rb) .long 0x7c000000|\ + (rt<<21)|(ra<<16)|(rb<<11)|(914<<1) + +#define TLBWE(rs,ra,ws) .long 0x7c000000|\ + (rs<<21)|(ra<<16)|(ws<<11)|(978<<1) + +#define TLBRE(rt,ra,ws) .long 0x7c000000|\ + (rt<<21)|(ra<<16)|(ws<<11)|(946<<1) + +#define TLBSXDOT(rt,ra,rb) .long 0x7c000001|\ + (rt<<21)|(ra<<16)|(rb<<11)|(914<<1) + +#define MSYNC .long 0x7c000000|\ + (598<<1) + +#define MBAR_INST .long 0x7c000000|\ + (854<<1) + +#ifndef __ASSEMBLY__ +/* Prototypes */ +void mttlb1(unsigned long index, unsigned long value); +void mttlb2(unsigned long index, unsigned long value); +void mttlb3(unsigned long index, unsigned long value); +unsigned long mftlb1(unsigned long index); +unsigned long mftlb2(unsigned long index); +unsigned long mftlb3(unsigned long index); + +void program_tlb(u64 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value); +void remove_tlb(u32 vaddr, u32 size); +void change_tlb(u32 vaddr, u32 size, u32 tlb_word2_i_value); +#endif /* __ASSEMBLY__ */ + +#endif /* CONFIG_440 */ +#endif /* _PPC_MMU_H_ */ diff --git a/arch/ppc/include/asm/mp.h b/arch/ppc/include/asm/mp.h new file mode 100644 index 0000000..5388c95 --- /dev/null +++ b/arch/ppc/include/asm/mp.h @@ -0,0 +1,30 @@ +/* + * Copyright 2009 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +#ifndef _ASM_MP_H_ +#define _ASM_MP_H_ + +#include <lmb.h> + +void setup_mp(void); +void cpu_mp_lmb_reserve(struct lmb *lmb); +u32 determine_mp_bootpg(void); + +#endif diff --git a/arch/ppc/include/asm/mpc512x.h b/arch/ppc/include/asm/mpc512x.h new file mode 100644 index 0000000..960e229 --- /dev/null +++ b/arch/ppc/include/asm/mpc512x.h @@ -0,0 +1,58 @@ +/* + * include/asm-ppc/mpc512x.h + * + * Prototypes, etc. for the Freescale MPC512x embedded cpu chips + * + * 2009 (C) Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#ifndef __ASMPPC_MPC512X_H +#define __ASMPPC_MPC512X_H + +/* + * macros for manipulating CSx_START/STOP + */ +#define CSAW_START(start) ((start) & 0xFFFF0000) +#define CSAW_STOP(start, size) (((start) + (size) - 1) >> 16) + +/* + * Inlines + */ + +/* + * According to MPC5121e RM, configuring local access windows should + * be followed by a dummy read of the config register that was + * modified last and an isync. + */ +static inline void sync_law(volatile void *addr) +{ + in_be32(addr); + __asm__ __volatile__ ("isync"); +} + +/* + * Prototypes + */ +extern long int fixed_sdram(ddr512x_config_t *mddrc_config, + u32 *dram_init_seq, int seq_sz); +extern int mpc5121_diu_init(void); +extern void ide_set_reset(int idereset); + +#endif /* __ASMPPC_MPC512X_H */ diff --git a/arch/ppc/include/asm/mpc8349_pci.h b/arch/ppc/include/asm/mpc8349_pci.h new file mode 100644 index 0000000..7a1adba --- /dev/null +++ b/arch/ppc/include/asm/mpc8349_pci.h @@ -0,0 +1,168 @@ +#ifndef _PPC_KERNEL_MPC8349_PCI_H +#define _PPC_KERNEL_MPC8349_PCI_H + + +#define M8265_PCIBR0 0x101ac +#define M8265_PCIBR1 0x101b0 +#define M8265_PCIMSK0 0x101c4 +#define M8265_PCIMSK1 0x101c8 + +/* Bit definitions for PCIBR registers */ + +#define PCIBR_ENABLE 0x00000001 + +/* Bit definitions for PCIMSK registers */ + +#define PCIMSK_32KB 0xFFFF8000 /* Size of window, smallest */ +#define PCIMSK_64KB 0xFFFF0000 +#define PCIMSK_128KB 0xFFFE0000 +#define PCIMSK_256KB 0xFFFC0000 +#define PCIMSK_512KB 0xFFF80000 +#define PCIMSK_1MB 0xFFF00000 +#define PCIMSK_2MB 0xFFE00000 +#define PCIMSK_4MB 0xFFC00000 +#define PCIMSK_8MB 0xFF800000 +#define PCIMSK_16MB 0xFF000000 +#define PCIMSK_32MB 0xFE000000 +#define PCIMSK_64MB 0xFC000000 +#define PCIMSK_128MB 0xF8000000 +#define PCIMSK_256MB 0xF0000000 +#define PCIMSK_512MB 0xE0000000 +#define PCIMSK_1GB 0xC0000000 /* Size of window, largest */ + + +#define M826X_SCCR_PCI_MODE_EN 0x100 + + +/* + * Outbound ATU registers (3 sets). These registers control how 60x bus + * (local) addresses are translated to PCI addresses when the MPC826x is + * a PCI bus master (initiator). + */ + +#define POTAR_REG0 0x10800 /* PCI Outbound Translation Addr registers */ +#define POTAR_REG1 0x10818 +#define POTAR_REG2 0x10830 + +#define POBAR_REG0 0x10808 /* PCI Outbound Base Addr registers */ +#define POBAR_REG1 0x10820 +#define POBAR_REG2 0x10838 + +#define POCMR_REG0 0x10810 /* PCI Outbound Comparison Mask registers */ +#define POCMR_REG1 0x10828 +#define POCMR_REG2 0x10840 + +/* Bit definitions for POMCR registers */ + +#define POCMR_MASK_4KB 0x000FFFFF +#define POCMR_MASK_8KB 0x000FFFFE +#define POCMR_MASK_16KB 0x000FFFFC +#define POCMR_MASK_32KB 0x000FFFF8 +#define POCMR_MASK_64KB 0x000FFFF0 +#define POCMR_MASK_128KB 0x000FFFE0 +#define POCMR_MASK_256KB 0x000FFFC0 +#define POCMR_MASK_512KB 0x000FFF80 +#define POCMR_MASK_1MB 0x000FFF00 +#define POCMR_MASK_2MB 0x000FFE00 +#define POCMR_MASK_4MB 0x000FFC00 +#define POCMR_MASK_8MB 0x000FF800 +#define POCMR_MASK_16MB 0x000FF000 +#define POCMR_MASK_32MB 0x000FE000 +#define POCMR_MASK_64MB 0x000FC000 +#define POCMR_MASK_128MB 0x000F8000 +#define POCMR_MASK_256MB 0x000F0000 +#define POCMR_MASK_512MB 0x000E0000 +#define POCMR_MASK_1GB 0x000C0000 + +#define POCMR_ENABLE 0x80000000 +#define POCMR_PCI_IO 0x40000000 +#define POCMR_PREFETCH_EN 0x20000000 +#define POCMR_PCI2 0x10000000 + +/* Soft PCI reset */ + +#define PCI_GCR_REG 0x10880 + +/* Bit definitions for PCI_GCR registers */ + +#define PCIGCR_PCI_BUS_EN 0x1 + +/* + * Inbound ATU registers (2 sets). These registers control how PCI + * addresses are translated to 60x bus (local) addresses when the + * MPC826x is a PCI bus target. + */ + +#define PITAR_REG1 0x108D0 +#define PIBAR_REG1 0x108D8 +#define PICMR_REG1 0x108E0 +#define PITAR_REG0 0x108E8 +#define PIBAR_REG0 0x108F0 +#define PICMR_REG0 0x108F8 + +/* Bit definitions for PCI Inbound Comparison Mask registers */ + +#define PICMR_MASK_4KB 0x000FFFFF +#define PICMR_MASK_8KB 0x000FFFFE +#define PICMR_MASK_16KB 0x000FFFFC +#define PICMR_MASK_32KB 0x000FFFF8 +#define PICMR_MASK_64KB 0x000FFFF0 +#define PICMR_MASK_128KB 0x000FFFE0 +#define PICMR_MASK_256KB 0x000FFFC0 +#define PICMR_MASK_512KB 0x000FFF80 +#define PICMR_MASK_1MB 0x000FFF00 +#define PICMR_MASK_2MB 0x000FFE00 +#define PICMR_MASK_4MB 0x000FFC00 +#define PICMR_MASK_8MB 0x000FF800 +#define PICMR_MASK_16MB 0x000FF000 +#define PICMR_MASK_32MB 0x000FE000 +#define PICMR_MASK_64MB 0x000FC000 +#define PICMR_MASK_128MB 0x000F8000 +#define PICMR_MASK_256MB 0x000F0000 +#define PICMR_MASK_512MB 0x000E0000 +#define PICMR_MASK_1GB 0x000C0000 + +#define PICMR_ENABLE 0x80000000 +#define PICMR_NO_SNOOP_EN 0x40000000 +#define PICMR_PREFETCH_EN 0x20000000 + +/* PCI error Registers */ + +#define PCI_ERROR_STATUS_REG 0x10884 +#define PCI_ERROR_MASK_REG 0x10888 +#define PCI_ERROR_CONTROL_REG 0x1088C +#define PCI_ERROR_ADRS_CAPTURE_REG 0x10890 +#define PCI_ERROR_DATA_CAPTURE_REG 0x10898 +#define PCI_ERROR_CTRL_CAPTURE_REG 0x108A0 + +/* PCI error Register bit defines */ + +#define PCI_ERROR_PCI_ADDR_PAR 0x00000001 +#define PCI_ERROR_PCI_DATA_PAR_WR 0x00000002 +#define PCI_ERROR_PCI_DATA_PAR_RD 0x00000004 +#define PCI_ERROR_PCI_NO_RSP 0x00000008 +#define PCI_ERROR_PCI_TAR_ABT 0x00000010 +#define PCI_ERROR_PCI_SERR 0x00000020 +#define PCI_ERROR_PCI_PERR_RD 0x00000040 +#define PCI_ERROR_PCI_PERR_WR 0x00000080 +#define PCI_ERROR_I2O_OFQO 0x00000100 +#define PCI_ERROR_I2O_IPQO 0x00000200 +#define PCI_ERROR_IRA 0x00000400 +#define PCI_ERROR_NMI 0x00000800 +#define PCI_ERROR_I2O_DBMC 0x00001000 + +/* + * Register pair used to generate configuration cycles on the PCI bus + * and access the MPC826x's own PCI configuration registers. + */ + +#define PCI_CFG_ADDR_REG 0x10900 +#define PCI_CFG_DATA_REG 0x10904 + +/* Bus parking decides where the bus control sits when idle */ +/* If modifying memory controllers for PCI park on the core */ + +#define PPC_ACR_BUS_PARK_CORE 0x6 +#define PPC_ACR_BUS_PARK_PCI 0x3 + +#endif /* _PPC_KERNEL_M8260_PCI_H */ diff --git a/arch/ppc/include/asm/mpc8xxx_spi.h b/arch/ppc/include/asm/mpc8xxx_spi.h new file mode 100644 index 0000000..41737d3 --- /dev/null +++ b/arch/ppc/include/asm/mpc8xxx_spi.h @@ -0,0 +1,48 @@ +/* + * Freescale non-CPM SPI Controller + * + * Copyright 2008 Qstreams Networks, Inc. + * + * This software may be used and distributed according to the + * terms of the GNU Public License, Version 2, incorporated + * herein by reference. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _ASM_MPC8XXX_SPI_H_ +#define _ASM_MPC8XXX_SPI_H_ + +#include <asm/types.h> + +#if defined(CONFIG_MPC834x) || \ + defined(CONFIG_MPC8313) || \ + defined(CONFIG_MPC8315) || \ + defined(CONFIG_MPC837x) + +typedef struct spi8xxx { + u8 res0[0x20]; /* 0x0-0x01f reserved */ + u32 mode; /* mode register */ + u32 event; /* event register */ + u32 mask; /* mask register */ + u32 com; /* command register */ + u32 tx; /* transmit register */ + u32 rx; /* receive register */ + u8 res1[0xFC8]; /* fill up to 0x1000 */ +} spi8xxx_t; + +#endif + +#endif /* _ASM_MPC8XXX_SPI_H_ */ diff --git a/arch/ppc/include/asm/pci_io.h b/arch/ppc/include/asm/pci_io.h new file mode 100644 index 0000000..9b738c3 --- /dev/null +++ b/arch/ppc/include/asm/pci_io.h @@ -0,0 +1,43 @@ +/* originally from linux source (asm-ppc/io.h). + * Sanity added by Rob Taylor, Flying Pig Systems, 2000 + */ +#ifndef _PCI_IO_H_ +#define _PCI_IO_H_ + +#include "io.h" + + +#define pci_read_le16(addr, dest) \ + __asm__ __volatile__("lhbrx %0,0,%1" : "=r" (dest) : \ + "r" (addr), "m" (*addr)); + +#define pci_write_le16(addr, val) \ + __asm__ __volatile__("sthbrx %1,0,%2" : "=m" (*addr) : \ + "r" (val), "r" (addr)); + + +#define pci_read_le32(addr, dest) \ + __asm__ __volatile__("lwbrx %0,0,%1" : "=r" (dest) : \ + "r" (addr), "m" (*addr)); + +#define pci_write_le32(addr, val) \ +__asm__ __volatile__("stwbrx %1,0,%2" : "=m" (*addr) : \ + "r" (val), "r" (addr)); + +#define pci_readb(addr,b) ((b) = *(volatile u8 *) (addr)) +#define pci_writeb(b,addr) ((*(volatile u8 *) (addr)) = (b)) + +#if !defined(__BIG_ENDIAN) +#define pci_readw(addr,b) ((b) = *(volatile u16 *) (addr)) +#define pci_readl(addr,b) ((b) = *(volatile u32 *) (addr)) +#define pci_writew(b,addr) ((*(volatile u16 *) (addr)) = (b)) +#define pci_writel(b,addr) ((*(volatile u32 *) (addr)) = (b)) +#else +#define pci_readw(addr,b) pci_read_le16((volatile u16 *)(addr),(b)) +#define pci_readl(addr,b) pci_read_le32((volatile u32 *)(addr),(b)) +#define pci_writew(b,addr) pci_write_le16((volatile u16 *)(addr),(b)) +#define pci_writel(b,addr) pci_write_le32((volatile u32 *)(addr),(b)) +#endif + + +#endif /* _PCI_IO_H_ */ diff --git a/arch/ppc/include/asm/pnp.h b/arch/ppc/include/asm/pnp.h new file mode 100644 index 0000000..22ceba2 --- /dev/null +++ b/arch/ppc/include/asm/pnp.h @@ -0,0 +1,643 @@ +/* 11/02/95 */ +/*----------------------------------------------------------------------------*/ +/* Plug and Play header definitions */ +/*----------------------------------------------------------------------------*/ + +/* Structure map for PnP on PowerPC Reference Platform */ +/* See Plug and Play ISA Specification, Version 1.0, May 28, 1993. It */ +/* (or later versions) is available on Compuserve in the PLUGPLAY area. */ +/* This code has extensions to that specification, namely new short and */ +/* long tag types for platform dependent information */ + +/* Warning: LE notation used throughout this file */ + +/* For enum's: if given in hex then they are bit significant, i.e. */ +/* only one bit is on for each enum */ + +#ifndef _PNP_ +#define _PNP_ + +#ifndef __ASSEMBLY__ +#define MAX_MEM_REGISTERS 9 +#define MAX_IO_PORTS 20 +#define MAX_IRQS 7 +/*#define MAX_DMA_CHANNELS 7*/ + +/* Interrupt controllers */ + +#define PNPinterrupt0 "PNP0000" /* AT Interrupt Controller */ +#define PNPinterrupt1 "PNP0001" /* EISA Interrupt Controller */ +#define PNPinterrupt2 "PNP0002" /* MCA Interrupt Controller */ +#define PNPinterrupt3 "PNP0003" /* APIC */ +#define PNPExtInt "IBM000D" /* PowerPC Extended Interrupt Controller */ + +/* Timers */ + +#define PNPtimer0 "PNP0100" /* AT Timer */ +#define PNPtimer1 "PNP0101" /* EISA Timer */ +#define PNPtimer2 "PNP0102" /* MCA Timer */ + +/* DMA controllers */ + +#define PNPdma0 "PNP0200" /* AT DMA Controller */ +#define PNPdma1 "PNP0201" /* EISA DMA Controller */ +#define PNPdma2 "PNP0202" /* MCA DMA Controller */ + +/* start of August 15, 1994 additions */ +/* CMOS */ +#define PNPCMOS "IBM0009" /* CMOS */ + +/* L2 Cache */ +#define PNPL2 "IBM0007" /* L2 Cache */ + +/* NVRAM */ +#define PNPNVRAM "IBM0008" /* NVRAM */ + +/* Power Management */ +#define PNPPM "IBM0005" /* Power Management */ +/* end of August 15, 1994 additions */ + +/* Keyboards */ + +#define PNPkeyboard0 "PNP0300" /* IBM PC/XT KB Cntlr (83 key, no mouse) */ +#define PNPkeyboard1 "PNP0301" /* Olivetti ICO (102 key) */ +#define PNPkeyboard2 "PNP0302" /* IBM PC/AT KB Cntlr (84 key) */ +#define PNPkeyboard3 "PNP0303" /* IBM Enhanced (101/2 key, PS/2 mouse) */ +#define PNPkeyboard4 "PNP0304" /* Nokia 1050 KB Cntlr */ +#define PNPkeyboard5 "PNP0305" /* Nokia 9140 KB Cntlr */ +#define PNPkeyboard6 "PNP0306" /* Standard Japanese KB Cntlr */ +#define PNPkeyboard7 "PNP0307" /* Microsoft Windows (R) KB Cntlr */ + +/* Parallel port controllers */ + +#define PNPparallel0 "PNP0400" /* Standard LPT Parallel Port */ +#define PNPparallel1 "PNP0401" /* ECP Parallel Port */ +#define PNPepp "IBM001C" /* EPP Parallel Port */ + +/* Serial port controllers */ + +#define PNPserial0 "PNP0500" /* Standard PC Serial port */ +#define PNPSerial1 "PNP0501" /* 16550A Compatible Serial port */ + +/* Disk controllers */ + +#define PNPdisk0 "PNP0600" /* Generic ESDI/IDE/ATA Compat HD Cntlr */ +#define PNPdisk1 "PNP0601" /* Plus Hardcard II */ +#define PNPdisk2 "PNP0602" /* Plus Hardcard IIXL/EZ */ + +/* Diskette controllers */ + +#define PNPdiskette0 "PNP0700" /* PC Standard Floppy Disk Controller */ + +/* Display controllers */ + +#define PNPdisplay0 "PNP0900" /* VGA Compatible */ +#define PNPdisplay1 "PNP0901" /* Video Seven VGA */ +#define PNPdisplay2 "PNP0902" /* 8514/A Compatible */ +#define PNPdisplay3 "PNP0903" /* Trident VGA */ +#define PNPdisplay4 "PNP0904" /* Cirrus Logic Laptop VGA */ +#define PNPdisplay5 "PNP0905" /* Cirrus Logic VGA */ +#define PNPdisplay6 "PNP0906" /* Tseng ET4000 or ET4000/W32 */ +#define PNPdisplay7 "PNP0907" /* Western Digital VGA */ +#define PNPdisplay8 "PNP0908" /* Western Digital Laptop VGA */ +#define PNPdisplay9 "PNP0909" /* S3 */ +#define PNPdisplayA "PNP090A" /* ATI Ultra Pro/Plus (Mach 32) */ +#define PNPdisplayB "PNP090B" /* ATI Ultra (Mach 8) */ +#define PNPdisplayC "PNP090C" /* XGA Compatible */ +#define PNPdisplayD "PNP090D" /* ATI VGA Wonder */ +#define PNPdisplayE "PNP090E" /* Weitek P9000 Graphics Adapter */ +#define PNPdisplayF "PNP090F" /* Oak Technology VGA */ + +/* Peripheral busses */ + +#define PNPbuses0 "PNP0A00" /* ISA Bus */ +#define PNPbuses1 "PNP0A01" /* EISA Bus */ +#define PNPbuses2 "PNP0A02" /* MCA Bus */ +#define PNPbuses3 "PNP0A03" /* PCI Bus */ +#define PNPbuses4 "PNP0A04" /* VESA/VL Bus */ + +/* RTC, BIOS, planar devices */ + +#define PNPspeaker0 "PNP0800" /* AT Style Speaker Sound */ +#define PNPrtc0 "PNP0B00" /* AT RTC */ +#define PNPpnpbios0 "PNP0C00" /* PNP BIOS (only created by root enum) */ +#define PNPpnpbios1 "PNP0C01" /* System Board Memory Device */ +#define PNPpnpbios2 "PNP0C02" /* Math Coprocessor */ +#define PNPpnpbios3 "PNP0C03" /* PNP BIOS Event Notification Interrupt */ + +/* PCMCIA controller */ + +#define PNPpcmcia0 "PNP0E00" /* Intel 82365 Compatible PCMCIA Cntlr */ + +/* Mice */ + +#define PNPmouse0 "PNP0F00" /* Microsoft Bus Mouse */ +#define PNPmouse1 "PNP0F01" /* Microsoft Serial Mouse */ +#define PNPmouse2 "PNP0F02" /* Microsoft Inport Mouse */ +#define PNPmouse3 "PNP0F03" /* Microsoft PS/2 Mouse */ +#define PNPmouse4 "PNP0F04" /* Mousesystems Mouse */ +#define PNPmouse5 "PNP0F05" /* Mousesystems 3 Button Mouse - COM2 */ +#define PNPmouse6 "PNP0F06" /* Genius Mouse - COM1 */ +#define PNPmouse7 "PNP0F07" /* Genius Mouse - COM2 */ +#define PNPmouse8 "PNP0F08" /* Logitech Serial Mouse */ +#define PNPmouse9 "PNP0F09" /* Microsoft Ballpoint Serial Mouse */ +#define PNPmouseA "PNP0F0A" /* Microsoft PNP Mouse */ +#define PNPmouseB "PNP0F0B" /* Microsoft PNP Ballpoint Mouse */ + +/* Modems */ + +#define PNPmodem0 "PNP9000" /* Specific IDs TBD */ + +/* Network controllers */ + +#define PNPnetworkC9 "PNP80C9" /* IBM Token Ring */ +#define PNPnetworkCA "PNP80CA" /* IBM Token Ring II */ +#define PNPnetworkCB "PNP80CB" /* IBM Token Ring II/Short */ +#define PNPnetworkCC "PNP80CC" /* IBM Token Ring 4/16Mbs */ +#define PNPnetwork27 "PNP8327" /* IBM Token Ring (All types) */ +#define PNPnetworket "IBM0010" /* IBM Ethernet used by Power PC */ +#define PNPneteisaet "IBM2001" /* IBM Ethernet EISA adapter */ +#define PNPAMD79C970 "IBM0016" /* AMD 79C970 (PCI Ethernet) */ + +/* SCSI controllers */ + +#define PNPscsi0 "PNPA000" /* Adaptec 154x Compatible SCSI Cntlr */ +#define PNPscsi1 "PNPA001" /* Adaptec 174x Compatible SCSI Cntlr */ +#define PNPscsi2 "PNPA002" /* Future Domain 16-700 Compat SCSI Cntlr*/ +#define PNPscsi3 "PNPA003" /* Panasonic CDROM Adapter (SBPro/SB16) */ +#define PNPscsiF "IBM000F" /* NCR 810 SCSI Controller */ +#define PNPscsi825 "IBM001B" /* NCR 825 SCSI Controller */ +#define PNPscsi875 "IBM0018" /* NCR 875 SCSI Controller */ + +/* Sound/Video, Multimedia */ + +#define PNPmm0 "PNPB000" /* Sound Blaster Compatible Sound Device */ +#define PNPmm1 "PNPB001" /* MS Windows Sound System Compat Device */ +#define PNPmmF "IBM000E" /* Crystal CS4231 Audio Device */ +#define PNPv7310 "IBM0015" /* ASCII V7310 Video Capture Device */ +#define PNPmm4232 "IBM0017" /* Crystal CS4232 Audio Device */ +#define PNPpmsyn "IBM001D" /* YMF 289B chip (Yamaha) */ +#define PNPgp4232 "IBM0012" /* Crystal CS4232 Game Port */ +#define PNPmidi4232 "IBM0013" /* Crystal CS4232 MIDI */ + +/* Operator Panel */ +#define PNPopctl "IBM000B" /* Operator's panel */ + +/* Service Processor */ +#define PNPsp "IBM0011" /* IBM Service Processor */ +#define PNPLTsp "IBM001E" /* Lightning/Terlingua Support Processor */ +#define PNPLTmsp "IBM001F" /* Lightning/Terlingua Mini-SP */ + +/* Memory Controller */ +#define PNPmemctl "IBM000A" /* Memory controller */ + +/* Graphics Assist */ +#define PNPg_assist "IBM0014" /* Graphics Assist */ + +/* Miscellaneous Device Controllers */ +#define PNPtablet "IBM0019" /* IBM Tablet Controller */ + +/* PNP Packet Handles */ + +#define S1_Packet 0x0A /* Version resource */ +#define S2_Packet 0x15 /* Logical DEVID (without flags) */ +#define S2_Packet_flags 0x16 /* Logical DEVID (with flags) */ +#define S3_Packet 0x1C /* Compatible device ID */ +#define S4_Packet 0x22 /* IRQ resource (without flags) */ +#define S4_Packet_flags 0x23 /* IRQ resource (with flags) */ +#define S5_Packet 0x2A /* DMA resource */ +#define S6_Packet 0x30 /* Depend funct start (w/o priority) */ +#define S6_Packet_priority 0x31 /* Depend funct start (w/ priority) */ +#define S7_Packet 0x38 /* Depend funct end */ +#define S8_Packet 0x47 /* I/O port resource (w/o fixed loc) */ +#define S9_Packet_fixed 0x4B /* I/O port resource (w/ fixed loc) */ +#define S14_Packet 0x71 /* Vendor defined */ +#define S15_Packet 0x78 /* End of resource (w/o checksum) */ +#define S15_Packet_checksum 0x79 /* End of resource (w/ checksum) */ +#define L1_Packet 0x81 /* Memory range */ +#define L1_Shadow 0x20 /* Memory is shadowable */ +#define L1_32bit_mem 0x18 /* 32-bit memory only */ +#define L1_8_16bit_mem 0x10 /* 8- and 16-bit supported */ +#define L1_Decode_Hi 0x04 /* decode supports high address */ +#define L1_Cache 0x02 /* read cacheable, write-through */ +#define L1_Writeable 0x01 /* Memory is writeable */ +#define L2_Packet 0x82 /* ANSI ID string */ +#define L3_Packet 0x83 /* Unicode ID string */ +#define L4_Packet 0x84 /* Vendor defined */ +#define L5_Packet 0x85 /* Large I/O */ +#define L6_Packet 0x86 /* 32-bit Fixed Loc Mem Range Desc */ +#define END_TAG 0x78 /* End of resource */ +#define DF_START_TAG 0x30 /* Dependent function start */ +#define DF_START_TAG_priority 0x31 /* Dependent function start */ +#define DF_END_TAG 0x38 /* Dependent function end */ +#define SUBOPTIMAL_CONFIGURATION 0x2 /* Priority byte sub optimal config */ + +/* Device Base Type Codes */ + +typedef enum _PnP_BASE_TYPE { + Reserved = 0, + MassStorageDevice = 1, + NetworkInterfaceController = 2, + DisplayController = 3, + MultimediaController = 4, + MemoryController = 5, + BridgeController = 6, + CommunicationsDevice = 7, + SystemPeripheral = 8, + InputDevice = 9, + ServiceProcessor = 0x0A, /* 11/2/95 */ + } PnP_BASE_TYPE; + +/* Device Sub Type Codes */ + +typedef enum _PnP_SUB_TYPE { + SCSIController = 0, + IDEController = 1, + FloppyController = 2, + IPIController = 3, + OtherMassStorageController = 0x80, + + EthernetController = 0, + TokenRingController = 1, + FDDIController = 2, + OtherNetworkController = 0x80, + + VGAController= 0, + SVGAController= 1, + XGAController= 2, + OtherDisplayController = 0x80, + + VideoController = 0, + AudioController = 1, + OtherMultimediaController = 0x80, + + RAM = 0, + FLASH = 1, + OtherMemoryDevice = 0x80, + + HostProcessorBridge = 0, + ISABridge = 1, + EISABridge = 2, + MicroChannelBridge = 3, + PCIBridge = 4, + PCMCIABridge = 5, + VMEBridge = 6, + OtherBridgeDevice = 0x80, + + RS232Device = 0, + ATCompatibleParallelPort = 1, + OtherCommunicationsDevice = 0x80, + + ProgrammableInterruptController = 0, + DMAController = 1, + SystemTimer = 2, + RealTimeClock = 3, + L2Cache = 4, + NVRAM = 5, + PowerManagement = 6, + CMOS = 7, + OperatorPanel = 8, + ServiceProcessorClass1 = 9, + ServiceProcessorClass2 = 0xA, + ServiceProcessorClass3 = 0xB, + GraphicAssist = 0xC, + SystemPlanar = 0xF, /* 10/5/95 */ + OtherSystemPeripheral = 0x80, + + KeyboardController = 0, + Digitizer = 1, + MouseController = 2, + TabletController = 3, /* 10/27/95 */ + OtherInputController = 0x80, + + GeneralMemoryController = 0, + } PnP_SUB_TYPE; + +/* Device Interface Type Codes */ + +typedef enum _PnP_INTERFACE { + General = 0, + GeneralSCSI = 0, + GeneralIDE = 0, + ATACompatible = 1, + + GeneralFloppy = 0, + Compatible765 = 1, + NS398_Floppy = 2, /* NS Super I/O wired to use index + register at port 398 and data + register at port 399 */ + NS26E_Floppy = 3, /* Ports 26E and 26F */ + NS15C_Floppy = 4, /* Ports 15C and 15D */ + NS2E_Floppy = 5, /* Ports 2E and 2F */ + CHRP_Floppy = 6, /* CHRP Floppy in PR*P system */ + + GeneralIPI = 0, + + GeneralEther = 0, + GeneralToken = 0, + GeneralFDDI = 0, + + GeneralVGA = 0, + GeneralSVGA = 0, + GeneralXGA = 0, + + GeneralVideo = 0, + GeneralAudio = 0, + CS4232Audio = 1, /* CS 4232 Plug 'n Play Configured */ + + GeneralRAM = 0, + GeneralFLASH = 0, + PCIMemoryController = 0, /* PCI Config Method */ + RS6KMemoryController = 1, /* RS6K Config Method */ + + GeneralHostBridge = 0, + GeneralISABridge = 0, + GeneralEISABridge = 0, + GeneralMCABridge = 0, + GeneralPCIBridge = 0, + PCIBridgeDirect = 0, + PCIBridgeIndirect = 1, + PCIBridgeRS6K = 2, + GeneralPCMCIABridge = 0, + GeneralVMEBridge = 0, + + GeneralRS232 = 0, + COMx = 1, + Compatible16450 = 2, + Compatible16550 = 3, + NS398SerPort = 4, /* NS Super I/O wired to use index + register at port 398 and data + register at port 399 */ + NS26ESerPort = 5, /* Ports 26E and 26F */ + NS15CSerPort = 6, /* Ports 15C and 15D */ + NS2ESerPort = 7, /* Ports 2E and 2F */ + + GeneralParPort = 0, + LPTx = 1, + NS398ParPort = 2, /* NS Super I/O wired to use index + register at port 398 and data + register at port 399 */ + NS26EParPort = 3, /* Ports 26E and 26F */ + NS15CParPort = 4, /* Ports 15C and 15D */ + NS2EParPort = 5, /* Ports 2E and 2F */ + + GeneralPIC = 0, + ISA_PIC = 1, + EISA_PIC = 2, + MPIC = 3, + RS6K_PIC = 4, + + GeneralDMA = 0, + ISA_DMA = 1, + EISA_DMA = 2, + + GeneralTimer = 0, + ISA_Timer = 1, + EISA_Timer = 2, + GeneralRTC = 0, + ISA_RTC = 1, + + StoreThruOnly = 1, + StoreInEnabled = 2, + RS6KL2Cache = 3, + + IndirectNVRAM = 0, /* Indirectly addressed */ + DirectNVRAM = 1, /* Memory Mapped */ + IndirectNVRAM24 = 2, /* Indirectly addressed - 24 bit */ + + GeneralPowerManagement = 0, + EPOWPowerManagement = 1, + PowerControl = 2, /* d1378 */ + + GeneralCMOS = 0, + + GeneralOPPanel = 0, + HarddiskLight = 1, + CDROMLight = 2, + PowerLight = 3, + KeyLock = 4, + ANDisplay = 5, /* AlphaNumeric Display */ + SystemStatusLED = 6, /* 3 digit 7 segment LED */ + CHRP_SystemStatusLED = 7, /* CHRP LEDs in PR*P system */ + + GeneralServiceProcessor = 0, + + TransferData = 1, + IGMC32 = 2, + IGMC64 = 3, + + GeneralSystemPlanar = 0, /* 10/5/95 */ + + } PnP_INTERFACE; + +/* PnP resources */ + +/* Compressed ASCII is 5 bits per char; 00001=A ... 11010=Z */ + +typedef struct _SERIAL_ID { + unsigned char VendorID0; /* Bit(7)=0 */ + /* Bits(6:2)=1st character in */ + /* compressed ASCII */ + /* Bits(1:0)=2nd character in */ + /* compressed ASCII bits(4:3) */ + unsigned char VendorID1; /* Bits(7:5)=2nd character in */ + /* compressed ASCII bits(2:0) */ + /* Bits(4:0)=3rd character in */ + /* compressed ASCII */ + unsigned char VendorID2; /* Product number - vendor assigned */ + unsigned char VendorID3; /* Product number - vendor assigned */ + +/* Serial number is to provide uniqueness if more than one board of same */ +/* type is in system. Must be "FFFFFFFF" if feature not supported. */ + + unsigned char Serial0; /* Unique serial number bits (7:0) */ + unsigned char Serial1; /* Unique serial number bits (15:8) */ + unsigned char Serial2; /* Unique serial number bits (23:16) */ + unsigned char Serial3; /* Unique serial number bits (31:24) */ + unsigned char Checksum; + } SERIAL_ID; + +typedef enum _PnPItemName { + Unused = 0, + PnPVersion = 1, + LogicalDevice = 2, + CompatibleDevice = 3, + IRQFormat = 4, + DMAFormat = 5, + StartDepFunc = 6, + EndDepFunc = 7, + IOPort = 8, + FixedIOPort = 9, + Res1 = 10, + Res2 = 11, + Res3 = 12, + SmallVendorItem = 14, + EndTag = 15, + MemoryRange = 1, + ANSIIdentifier = 2, + UnicodeIdentifier = 3, + LargeVendorItem = 4, + MemoryRange32 = 5, + MemoryRangeFixed32 = 6, + } PnPItemName; + +/* Define a bunch of access functions for the bits in the tag field */ + +/* Tag type - 0 = small; 1 = large */ +#define tag_type(t) (((t) & 0x80)>>7) +#define set_tag_type(t,v) (t = (t & 0x7f) | ((v)<<7)) + +/* Small item name is 4 bits - one of PnPItemName enum above */ +#define tag_small_item_name(t) (((t) & 0x78)>>3) +#define set_tag_small_item_name(t,v) (t = (t & 0x07) | ((v)<<3)) + +/* Small item count is 3 bits - count of further bytes in packet */ +#define tag_small_count(t) ((t) & 0x07) +#define set_tag_count(t,v) (t = (t & 0x78) | (v)) + +/* Large item name is 7 bits - one of PnPItemName enum above */ +#define tag_large_item_name(t) ((t) & 0x7f) +#define set_tag_large_item_name(t,v) (t = (t | 0x80) | (v)) + +/* a PnP resource is a bunch of contiguous TAG packets ending with an end tag */ + +typedef union _PnP_TAG_PACKET { + struct _S1_Pack{ /* VERSION PACKET */ + unsigned char Tag; /* small tag = 0x0a */ + unsigned char Version[2]; /* PnP version, Vendor version */ + } S1_Pack; + + struct _S2_Pack{ /* LOGICAL DEVICE ID PACKET */ + unsigned char Tag; /* small tag = 0x15 or 0x16 */ + unsigned char DevId[4]; /* Logical device id */ + unsigned char Flags[2]; /* bit(0) boot device; */ + /* bit(7:1) cmd in range x31-x37 */ + /* bit(7:0) cmd in range x28-x3f (opt)*/ + } S2_Pack; + + struct _S3_Pack{ /* COMPATIBLE DEVICE ID PACKET */ + unsigned char Tag; /* small tag = 0x1c */ + unsigned char CompatId[4]; /* Compatible device id */ + } S3_Pack; + + struct _S4_Pack{ /* IRQ PACKET */ + unsigned char Tag; /* small tag = 0x22 or 0x23 */ + unsigned char IRQMask[2]; /* bit(0) is IRQ0, ...; */ + /* bit(0) is IRQ8 ... */ + unsigned char IRQInfo; /* optional; assume bit(0)=1; else */ + /* bit(0) - high true edge sensitive */ + /* bit(1) - low true edge sensitive */ + /* bit(2) - high true level sensitive*/ + /* bit(3) - low true level sensitive */ + /* bit(7:4) - must be 0 */ + } S4_Pack; + + struct _S5_Pack{ /* DMA PACKET */ + unsigned char Tag; /* small tag = 0x2a */ + unsigned char DMAMask; /* bit(0) is channel 0 ... */ + unsigned char DMAInfo; + } S5_Pack; + + struct _S6_Pack{ /* START DEPENDENT FUNCTION PACKET */ + unsigned char Tag; /* small tag = 0x30 or 0x31 */ + unsigned char Priority; /* Optional; if missing then x01; else*/ + /* x00 = best possible */ + /* x01 = acceptible */ + /* x02 = sub-optimal but functional */ + } S6_Pack; + + struct _S7_Pack{ /* END DEPENDENT FUNCTION PACKET */ + unsigned char Tag; /* small tag = 0x38 */ + } S7_Pack; + + struct _S8_Pack{ /* VARIABLE I/O PORT PACKET */ + unsigned char Tag; /* small tag x47 */ + unsigned char IOInfo; /* x0 = decode only bits(9:0); */ +#define ISAAddr16bit 0x01 /* x01 = decode bits(15:0) */ + unsigned char RangeMin[2]; /* Min base address */ + unsigned char RangeMax[2]; /* Max base address */ + unsigned char IOAlign; /* base alignmt, incr in 1B blocks */ + unsigned char IONum; /* number of contiguous I/O ports */ + } S8_Pack; + + struct _S9_Pack{ /* FIXED I/O PORT PACKET */ + unsigned char Tag; /* small tag = 0x4b */ + unsigned char Range[2]; /* base address 10 bits */ + unsigned char IONum; /* number of contiguous I/O ports */ + } S9_Pack; + + struct _S14_Pack{ /* VENDOR DEFINED PACKET */ + unsigned char Tag; /* small tag = 0x7m m = 1-7 */ + union _S14_Data{ + unsigned char Data[7]; /* Vendor defined */ + struct _S14_PPCPack{ /* Pr*p s14 pack */ + unsigned char Type; /* 00=non-IBM */ + unsigned char PPCData[6]; /* Vendor defined */ + } S14_PPCPack; + } S14_Data; + } S14_Pack; + + struct _S15_Pack{ /* END PACKET */ + unsigned char Tag; /* small tag = 0x78 or 0x79 */ + unsigned char Check; /* optional - checksum */ + } S15_Pack; + + struct _L1_Pack{ /* MEMORY RANGE PACKET */ + unsigned char Tag; /* large tag = 0x81 */ + unsigned char Count0; /* x09 */ + unsigned char Count1; /* x00 */ + unsigned char Data[9]; /* a variable array of bytes, */ + /* count in tag */ + } L1_Pack; + + struct _L2_Pack{ /* ANSI ID STRING PACKET */ + unsigned char Tag; /* large tag = 0x82 */ + unsigned char Count0; /* Length of string */ + unsigned char Count1; + unsigned char Identifier[1]; /* a variable array of bytes, */ + /* count in tag */ + } L2_Pack; + + struct _L3_Pack{ /* UNICODE ID STRING PACKET */ + unsigned char Tag; /* large tag = 0x83 */ + unsigned char Count0; /* Length + 2 of string */ + unsigned char Count1; + unsigned char Country0; /* TBD */ + unsigned char Country1; /* TBD */ + unsigned char Identifier[1]; /* a variable array of bytes, */ + /* count in tag */ + } L3_Pack; + + struct _L4_Pack{ /* VENDOR DEFINED PACKET */ + unsigned char Tag; /* large tag = 0x84 */ + unsigned char Count0; + unsigned char Count1; + union _L4_Data{ + unsigned char Data[1]; /* a variable array of bytes, */ + /* count in tag */ + struct _L4_PPCPack{ /* Pr*p L4 packet */ + unsigned char Type; /* 00=non-IBM */ + unsigned char PPCData[1]; /* a variable array of bytes, */ + /* count in tag */ + } L4_PPCPack; + } L4_Data; + } L4_Pack; + + struct _L5_Pack{ + unsigned char Tag; /* large tag = 0x85 */ + unsigned char Count0; /* Count = 17 */ + unsigned char Count1; + unsigned char Data[17]; + } L5_Pack; + + struct _L6_Pack{ + unsigned char Tag; /* large tag = 0x86 */ + unsigned char Count0; /* Count = 9 */ + unsigned char Count1; + unsigned char Data[9]; + } L6_Pack; + + } PnP_TAG_PACKET; + +#endif /* __ASSEMBLY__ */ +#endif /* ndef _PNP_ */ diff --git a/arch/ppc/include/asm/posix_types.h b/arch/ppc/include/asm/posix_types.h new file mode 100644 index 0000000..9170728 --- /dev/null +++ b/arch/ppc/include/asm/posix_types.h @@ -0,0 +1,109 @@ +#ifndef _PPC_POSIX_TYPES_H +#define _PPC_POSIX_TYPES_H + +/* + * This file is generally used by user-level software, so you need to + * be a little careful about namespace pollution etc. Also, we cannot + * assume GCC is being used. + */ + +typedef unsigned int __kernel_dev_t; +typedef unsigned int __kernel_ino_t; +typedef unsigned int __kernel_mode_t; +typedef unsigned short __kernel_nlink_t; +typedef long __kernel_off_t; +typedef int __kernel_pid_t; +typedef unsigned int __kernel_uid_t; +typedef unsigned int __kernel_gid_t; +typedef unsigned int __kernel_size_t; +typedef int __kernel_ssize_t; +typedef long __kernel_ptrdiff_t; +typedef long __kernel_time_t; +typedef long __kernel_suseconds_t; +typedef long __kernel_clock_t; +typedef int __kernel_daddr_t; +typedef char * __kernel_caddr_t; +typedef short __kernel_ipc_pid_t; +typedef unsigned short __kernel_uid16_t; +typedef unsigned short __kernel_gid16_t; +typedef unsigned int __kernel_uid32_t; +typedef unsigned int __kernel_gid32_t; + +typedef unsigned int __kernel_old_uid_t; +typedef unsigned int __kernel_old_gid_t; + +#ifdef __GNUC__ +typedef long long __kernel_loff_t; +#endif + +typedef struct { + int val[2]; +} __kernel_fsid_t; + +#ifndef __GNUC__ + +#define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d)) +#define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d)) +#define __FD_ISSET(d, set) ((set)->fds_bits[__FDELT(d)] & __FDMASK(d)) +#define __FD_ZERO(set) \ + ((void) memset ((__ptr_t) (set), 0, sizeof (__kernel_fd_set))) + +#else /* __GNUC__ */ + +#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) \ + || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 0) +/* With GNU C, use inline functions instead so args are evaluated only once: */ + +#undef __FD_SET +static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp) +{ + unsigned long _tmp = fd / __NFDBITS; + unsigned long _rem = fd % __NFDBITS; + fdsetp->fds_bits[_tmp] |= (1UL<<_rem); +} + +#undef __FD_CLR +static __inline__ void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp) +{ + unsigned long _tmp = fd / __NFDBITS; + unsigned long _rem = fd % __NFDBITS; + fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem); +} + +#undef __FD_ISSET +static __inline__ int __FD_ISSET(unsigned long fd, __kernel_fd_set *p) +{ + unsigned long _tmp = fd / __NFDBITS; + unsigned long _rem = fd % __NFDBITS; + return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0; +} + +/* + * This will unroll the loop for the normal constant case (8 ints, + * for a 256-bit fd_set) + */ +#undef __FD_ZERO +static __inline__ void __FD_ZERO(__kernel_fd_set *p) +{ + unsigned int *tmp = (unsigned int *)p->fds_bits; + int i; + + if (__builtin_constant_p(__FDSET_LONGS)) { + switch (__FDSET_LONGS) { + case 8: + tmp[0] = 0; tmp[1] = 0; tmp[2] = 0; tmp[3] = 0; + tmp[4] = 0; tmp[5] = 0; tmp[6] = 0; tmp[7] = 0; + return; + } + } + i = __FDSET_LONGS; + while (i) { + i--; + *tmp = 0; + tmp++; + } +} + +#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */ +#endif /* __GNUC__ */ +#endif /* _PPC_POSIX_TYPES_H */ diff --git a/arch/ppc/include/asm/ppc4xx-ebc.h b/arch/ppc/include/asm/ppc4xx-ebc.h new file mode 100644 index 0000000..9c17e46 --- /dev/null +++ b/arch/ppc/include/asm/ppc4xx-ebc.h @@ -0,0 +1,199 @@ +/* + * (C) Copyright 2008 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _PPC4xx_EBC_H_ +#define _PPC4xx_EBC_H_ + +/* + * Currently there are two register layout versions for the IBM EBC core + * used on 4xx PPC's. The following grouping lists the first layout. + * Within this group there is a slight variation concerning the bit field + * position of the EMPL and EMPH fields: + */ +#if defined(CONFIG_405CR) || defined(CONFIG_405GP) || \ + defined(CONFIG_405EP) || \ + defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) +#define CONFIG_EBC_PPC4xx_IBM_VER1 +#if defined(CONFIG_405CR) || defined(CONFIG_405GP) || \ + defined(CONFIG_405EP) +#define EBC_CFG_EMPH_POS 8 +#define EBC_CFG_EMPL_POS 6 +#else +#define EBC_CFG_EMPH_POS 6 +#define EBC_CFG_EMPL_POS 8 +#endif +#endif + +/* + * Define the max number of EBC banks (chip selects) + */ +#if defined(CONFIG_405CR) || defined(CONFIG_405GP) || \ + defined(CONFIG_405EZ) || \ + defined(CONFIG_440GP) || defined(CONFIG_440GX) +#define EBC_NUM_BANKS 8 +#endif + +#if defined(CONFIG_405EP) +#define EBC_NUM_BANKS 5 +#endif + +#if defined(CONFIG_405EX) || \ + defined(CONFIG_460SX) +#define EBC_NUM_BANKS 4 +#endif + +#if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) +#define EBC_NUM_BANKS 6 +#endif + +#if defined(CONFIG_440SP) || defined(CONFIG_440SPE) +#define EBC_NUM_BANKS 3 +#endif + +/* Bank Configuration Register */ +#define EBC_BXCR(n) (n) +#define EBC_BXCR_BANK_SIZE(n) (0x100000 << (((n) & EBC_BXCR_BS_MASK) >> 17)) + +#define EBC_BXCR_BAS_MASK PPC_REG_VAL(11, 0xFFF) +#define EBC_BXCR_BAS_ENCODE(n) (((static_cast(u32, n)) & EBC_BXCR_BAS_MASK)) +#define EBC_BXCR_BS_MASK PPC_REG_VAL(14, 0x7) +#define EBC_BXCR_BS_1MB PPC_REG_VAL(14, 0x0) +#define EBC_BXCR_BS_2MB PPC_REG_VAL(14, 0x1) +#define EBC_BXCR_BS_4MB PPC_REG_VAL(14, 0x2) +#define EBC_BXCR_BS_8MB PPC_REG_VAL(14, 0x3) +#define EBC_BXCR_BS_16MB PPC_REG_VAL(14, 0x4) +#define EBC_BXCR_BS_32MB PPC_REG_VAL(14, 0x5) +#define EBC_BXCR_BS_64MB PPC_REG_VAL(14, 0x6) +#define EBC_BXCR_BS_128MB PPC_REG_VAL(14, 0x7) +#define EBC_BXCR_BU_MASK PPC_REG_VAL(16, 0x3) +#define EBC_BXCR_BU_NONE PPC_REG_VAL(16, 0x0) +#define EBC_BXCR_BU_R PPC_REG_VAL(16, 0x1) +#define EBC_BXCR_BU_W PPC_REG_VAL(16, 0x2) +#define EBC_BXCR_BU_RW PPC_REG_VAL(16, 0x3) +#define EBC_BXCR_BW_MASK PPC_REG_VAL(18, 0x3) +#define EBC_BXCR_BW_8BIT PPC_REG_VAL(18, 0x0) +#define EBC_BXCR_BW_16BIT PPC_REG_VAL(18, 0x1) +#if defined(CONFIG_EBC_PPC4xx_IBM_VER1) +#define EBC_BXCR_BW_32BIT PPC_REG_VAL(18, 0x2) +#else +#define EBC_BXCR_BW_32BIT PPC_REG_VAL(18, 0x3) +#endif + +/* Bank Access Parameter Register */ +#define EBC_BXAP_BME_ENABLED PPC_REG_VAL(0, 0x1) +#define EBC_BXAP_BME_DISABLED PPC_REG_VAL(0, 0x0) +#define EBC_BXAP_TWT_ENCODE(n) PPC_REG_VAL(8, (static_cast(u32, n)) & 0xFF) +#define EBC_BXAP_FWT_ENCODE(n) PPC_REG_VAL(5, (static_cast(u32, n)) & 0x1F) +#define EBC_BXAP_BWT_ENCODE(n) PPC_REG_VAL(8, (static_cast(u32, n)) & 0x7) +#define EBC_BXAP_BCE_DISABLE PPC_REG_VAL(9, 0x0) +#define EBC_BXAP_BCE_ENABLE PPC_REG_VAL(9, 0x1) +#define EBC_BXAP_BCT_MASK PPC_REG_VAL(11, 0x3) +#define EBC_BXAP_BCT_2TRANS PPC_REG_VAL(11, 0x0) +#define EBC_BXAP_BCT_4TRANS PPC_REG_VAL(11, 0x1) +#define EBC_BXAP_BCT_8TRANS PPC_REG_VAL(11, 0x2) +#define EBC_BXAP_BCT_16TRANS PPC_REG_VAL(11, 0x3) +#define EBC_BXAP_CSN_ENCODE(n) PPC_REG_VAL(13, (static_cast(u32, n)) & 0x3) +#define EBC_BXAP_OEN_ENCODE(n) PPC_REG_VAL(15, (static_cast(u32, n)) & 0x3) +#define EBC_BXAP_WBN_ENCODE(n) PPC_REG_VAL(17, (static_cast(u32, n)) & 0x3) +#define EBC_BXAP_WBF_ENCODE(n) PPC_REG_VAL(19, (static_cast(u32, n)) & 0x3) +#define EBC_BXAP_TH_ENCODE(n) PPC_REG_VAL(22, (static_cast(u32, n)) & 0x7) +#define EBC_BXAP_RE_ENABLED PPC_REG_VAL(23, 0x1) +#define EBC_BXAP_RE_DISABLED PPC_REG_VAL(23, 0x0) +#define EBC_BXAP_SOR_DELAYED PPC_REG_VAL(24, 0x0) +#define EBC_BXAP_SOR_NONDELAYED PPC_REG_VAL(24, 0x1) +#define EBC_BXAP_BEM_WRITEONLY PPC_REG_VAL(25, 0x0) +#define EBC_BXAP_BEM_RW PPC_REG_VAL(25, 0x1) +#define EBC_BXAP_PEN_DISABLED PPC_REG_VAL(26, 0x0) +#define EBC_BXAP_PEN_ENABLED PPC_REG_VAL(26, 0x1) + +/* Common fields in EBC0_CFG register */ +#define EBC_CFG_PTD_MASK PPC_REG_VAL(1, 0x1) +#define EBC_CFG_PTD_ENABLE PPC_REG_VAL(1, 0x0) +#define EBC_CFG_PTD_DISABLE PPC_REG_VAL(1, 0x1) +#define EBC_CFG_RTC_MASK PPC_REG_VAL(4, 0x7) +#define EBC_CFG_RTC_16PERCLK PPC_REG_VAL(4, 0x0) +#define EBC_CFG_RTC_32PERCLK PPC_REG_VAL(4, 0x1) +#define EBC_CFG_RTC_64PERCLK PPC_REG_VAL(4, 0x2) +#define EBC_CFG_RTC_128PERCLK PPC_REG_VAL(4, 0x3) +#define EBC_CFG_RTC_256PERCLK PPC_REG_VAL(4, 0x4) +#define EBC_CFG_RTC_512PERCLK PPC_REG_VAL(4, 0x5) +#define EBC_CFG_RTC_1024PERCLK PPC_REG_VAL(4, 0x6) +#define EBC_CFG_RTC_2048PERCLK PPC_REG_VAL(4, 0x7) +#define EBC_CFG_PME_MASK PPC_REG_VAL(14, 0x1) +#define EBC_CFG_PME_DISABLE PPC_REG_VAL(14, 0x0) +#define EBC_CFG_PME_ENABLE PPC_REG_VAL(14, 0x1) +#define EBC_CFG_PMT_MASK PPC_REG_VAL(19, 0x1F) +#define EBC_CFG_PMT_ENCODE(n) PPC_REG_VAL(19, (static_cast(u32, n)) & 0x1F) + +/* Now the two versions of the other bits */ +#if defined(CONFIG_EBC_PPC4xx_IBM_VER1) +#define EBC_CFG_EBTC_MASK PPC_REG_VAL(0, 0x1) +#define EBC_CFG_EBTC_HI PPC_REG_VAL(0, 0x0) +#define EBC_CFG_EBTC_DRIVEN PPC_REG_VAL(0, 0x1) +#define EBC_CFG_EMPH_MASK PPC_REG_VAL(EBC_CFG_EMPH_POS, 0x3) +#define EBC_CFG_EMPH_ENCODE(n) PPC_REG_VAL(EBC_CFG_EMPH_POS, \ + (static_cast(u32, n)) & 0x3) +#define EBC_CFG_EMPL_MASK PPC_REG_VAL(EBC_CFG_EMPL_POS, 0x3) +#define EBC_CFG_EMPL_ENCODE(n) PPC_REG_VAL(EBC_CFG_EMPH_POS, \ + (static_cast(u32, n)) & 0x3) +#define EBC_CFG_CSTC_MASK PPC_REG_VAL(9, 0x1) +#define EBC_CFG_CSTC_HI PPC_REG_VAL(9, 0x0) +#define EBC_CFG_CSTC_DRIVEN PPC_REG_VAL(9, 0x1) +#define EBC_CFG_BPR_MASK PPC_REG_VAL(11, 0x3) +#define EBC_CFG_BPR_1DW PPC_REG_VAL(11, 0x0) +#define EBC_CFG_BPR_2DW PPC_REG_VAL(11, 0x1) +#define EBC_CFG_BPR_4DW PPC_REG_VAL(11, 0x2) +#define EBC_CFG_EMS_MASK PPC_REG_VAL(13, 0x3) +#define EBC_CFG_EMS_8BIT PPC_REG_VAL(13, 0x0) +#define EBC_CFG_EMS_16BIT PPC_REG_VAL(13, 0x1) +#define EBC_CFG_EMS_32BIT PPC_REG_VAL(13, 0x2) +#else +#define EBC_CFG_LE_MASK PPC_REG_VAL(0, 0x1) +#define EBC_CFG_LE_UNLOCK PPC_REG_VAL(0, 0x0) +#define EBC_CFG_LE_LOCK PPC_REG_VAL(0, 0x1) +#define EBC_CFG_ATC_MASK PPC_REG_VAL(5, 0x1) +#define EBC_CFG_ATC_HI PPC_REG_VAL(5, 0x0) +#define EBC_CFG_ATC_PREVIOUS PPC_REG_VAL(5, 0x1) +#define EBC_CFG_DTC_MASK PPC_REG_VAL(6, 0x1) +#define EBC_CFG_DTC_HI PPC_REG_VAL(6, 0x0) +#define EBC_CFG_DTC_PREVIOUS PPC_REG_VAL(6, 0x1) +#define EBC_CFG_CTC_MASK PPC_REG_VAL(7, 0x1) +#define EBC_CFG_CTC_HI PPC_REG_VAL(7, 0x0) +#define EBC_CFG_CTC_PREVIOUS PPC_REG_VAL(7, 0x1) +#define EBC_CFG_OEO_MASK PPC_REG_VAL(8, 0x1) +#define EBC_CFG_OEO_HI PPC_REG_VAL(8, 0x0) +#define EBC_CFG_OEO_PREVIOUS PPC_REG_VAL(8, 0x1) +#define EBC_CFG_EMC_MASK PPC_REG_VAL(9, 0x1) +#define EBC_CFG_EMC_NONDEFAULT PPC_REG_VAL(9, 0x0) +#define EBC_CFG_EMC_DEFAULT PPC_REG_VAL(9, 0x1) +#define EBC_CFG_PR_MASK PPC_REG_VAL(21, 0x3) +#define EBC_CFG_PR_16 PPC_REG_VAL(21, 0x0) +#define EBC_CFG_PR_32 PPC_REG_VAL(21, 0x1) +#define EBC_CFG_PR_64 PPC_REG_VAL(21, 0x2) +#define EBC_CFG_PR_128 PPC_REG_VAL(21, 0x3) +#endif + +#endif /* _PPC4xx_EBC_H_ */ diff --git a/arch/ppc/include/asm/ppc4xx-isram.h b/arch/ppc/include/asm/ppc4xx-isram.h new file mode 100644 index 0000000..d6d17ac --- /dev/null +++ b/arch/ppc/include/asm/ppc4xx-isram.h @@ -0,0 +1,75 @@ + +/* + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _PPC4xx_ISRAM_H_ +#define _PPC4xx_ISRAM_H_ + +/* + * Internal SRAM + */ +#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) +#define ISRAM0_DCR_BASE 0x380 +#else +#define ISRAM0_DCR_BASE 0x020 +#endif +#define ISRAM0_SB0CR (ISRAM0_DCR_BASE+0x00) /* SRAM bank config 0*/ +#define ISRAM0_SB1CR (ISRAM0_DCR_BASE+0x01) /* SRAM bank config 1*/ +#define ISRAM0_SB2CR (ISRAM0_DCR_BASE+0x02) /* SRAM bank config 2*/ +#define ISRAM0_SB3CR (ISRAM0_DCR_BASE+0x03) /* SRAM bank config 3*/ +#define ISRAM0_BEAR (ISRAM0_DCR_BASE+0x04) /* SRAM bus error addr reg */ +#define ISRAM0_BESR0 (ISRAM0_DCR_BASE+0x05) /* SRAM bus error status reg 0 */ +#define ISRAM0_BESR1 (ISRAM0_DCR_BASE+0x06) /* SRAM bus error status reg 1 */ +#define ISRAM0_PMEG (ISRAM0_DCR_BASE+0x07) /* SRAM power management */ +#define ISRAM0_CID (ISRAM0_DCR_BASE+0x08) /* SRAM bus core id reg */ +#define ISRAM0_REVID (ISRAM0_DCR_BASE+0x09) /* SRAM bus revision id reg */ +#define ISRAM0_DPC (ISRAM0_DCR_BASE+0x0a) /* SRAM data parity check reg */ + +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) +#define ISRAM1_DCR_BASE 0x0B0 +#define ISRAM1_SB0CR (ISRAM1_DCR_BASE+0x00) /* SRAM1 bank config 0*/ +#define ISRAM1_BEAR (ISRAM1_DCR_BASE+0x04) /* SRAM1 bus error addr reg */ +#define ISRAM1_BESR0 (ISRAM1_DCR_BASE+0x05) /* SRAM1 bus error status reg 0 */ +#define ISRAM1_BESR1 (ISRAM1_DCR_BASE+0x06) /* SRAM1 bus error status reg 1 */ +#define ISRAM1_PMEG (ISRAM1_DCR_BASE+0x07) /* SRAM1 power management */ +#define ISRAM1_CID (ISRAM1_DCR_BASE+0x08) /* SRAM1 bus core id reg */ +#define ISRAM1_REVID (ISRAM1_DCR_BASE+0x09) /* SRAM1 bus revision id reg */ +#define ISRAM1_DPC (ISRAM1_DCR_BASE+0x0a) /* SRAM1 data parity check reg */ +#endif /* CONFIG_460EX || CONFIG_460GT */ + +/* + * L2 Cache + */ +#if defined (CONFIG_440GX) || \ + defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ + defined(CONFIG_460SX) +#define L2_CACHE_BASE 0x030 +#define L2_CACHE_CFG (L2_CACHE_BASE+0x00) /* L2 Cache Config */ +#define L2_CACHE_CMD (L2_CACHE_BASE+0x01) /* L2 Cache Command */ +#define L2_CACHE_ADDR (L2_CACHE_BASE+0x02) /* L2 Cache Address */ +#define L2_CACHE_DATA (L2_CACHE_BASE+0x03) /* L2 Cache Data */ +#define L2_CACHE_STAT (L2_CACHE_BASE+0x04) /* L2 Cache Status */ +#define L2_CACHE_CVER (L2_CACHE_BASE+0x05) /* L2 Cache Revision ID */ +#define L2_CACHE_SNP0 (L2_CACHE_BASE+0x06) /* L2 Cache Snoop reg 0 */ +#define L2_CACHE_SNP1 (L2_CACHE_BASE+0x07) /* L2 Cache Snoop reg 1 */ +#endif /* CONFIG_440GX */ + +#endif /* _PPC4xx_ISRAM_H_ */ diff --git a/arch/ppc/include/asm/ppc4xx-sdram.h b/arch/ppc/include/asm/ppc4xx-sdram.h new file mode 100644 index 0000000..92be514 --- /dev/null +++ b/arch/ppc/include/asm/ppc4xx-sdram.h @@ -0,0 +1,1411 @@ +/* + * (C) Copyright 2008 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _PPC4xx_SDRAM_H_ +#define _PPC4xx_SDRAM_H_ + +#if defined(CONFIG_SDRAM_PPC4xx_IBM_SDRAM) + +/* + * SDRAM Controller + */ + +#ifndef CONFIG_405EP +#define SDRAM0_BESR0 0x00 /* bus error syndrome reg a */ +#define SDRAM0_BESRS0 0x04 /* bus error syndrome reg set a */ +#define SDRAM0_BESR1 0x08 /* bus error syndrome reg b */ +#define SDRAM0_BESRS1 0x0c /* bus error syndrome reg set b */ +#define SDRAM0_BEAR 0x10 /* bus error address reg */ +#endif +#define SDRAM0_CFG 0x20 /* memory controller options 1 */ +#define SDRAM0_STATUS 0x24 /* memory status */ +#define SDRAM0_RTR 0x30 /* refresh timer reg */ +#define SDRAM0_PMIT 0x34 /* power management idle timer */ +#define SDRAM0_B0CR 0x40 /* memory bank 0 configuration */ +#define SDRAM0_B1CR 0x44 /* memory bank 1 configuration */ +#ifndef CONFIG_405EP +#define SDRAM0_B2CR 0x48 /* memory bank 2 configuration */ +#define SDRAM0_B3CR 0x4c /* memory bank 3 configuration */ +#endif +#define SDRAM0_TR 0x80 /* timing reg 1 */ +#ifndef CONFIG_405EP +#define SDRAM0_ECCCFG 0x94 /* ECC configuration */ +#define SDRAM0_ECCESR 0x98 /* ECC error status */ +#endif + +#endif /* CONFIG_SDRAM_PPC4xx_IBM_SDRAM */ + +#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR) + +/* + * Memory controller registers + */ +#define SDRAM_CFG0 0x20 /* memory controller options 0 */ +#define SDRAM_CFG1 0x21 /* memory controller options 1 */ + +#define SDRAM0_BEAR 0x0010 /* bus error address reg */ +#define SDRAM0_SLIO 0x0018 /* ddr sdram slave interface options */ +#define SDRAM0_CFG0 0x0020 /* ddr sdram options 0 */ +#define SDRAM0_CFG1 0x0021 /* ddr sdram options 1 */ +#define SDRAM0_DEVOPT 0x0022 /* ddr sdram device options */ +#define SDRAM0_MCSTS 0x0024 /* memory controller status */ +#define SDRAM0_RTR 0x0030 /* refresh timer register */ +#define SDRAM0_PMIT 0x0034 /* power management idle timer */ +#define SDRAM0_UABBA 0x0038 /* plb UABus base address */ +#define SDRAM0_B0CR 0x0040 /* ddr sdram bank 0 configuration */ +#define SDRAM0_B1CR 0x0044 /* ddr sdram bank 1 configuration */ +#define SDRAM0_B2CR 0x0048 /* ddr sdram bank 2 configuration */ +#define SDRAM0_B3CR 0x004c /* ddr sdram bank 3 configuration */ +#define SDRAM0_TR0 0x0080 /* sdram timing register 0 */ +#define SDRAM0_TR1 0x0081 /* sdram timing register 1 */ +#define SDRAM0_CLKTR 0x0082 /* ddr clock timing register */ +#define SDRAM0_WDDCTR 0x0083 /* write data/dm/dqs clock timing reg */ +#define SDRAM0_DLYCAL 0x0084 /* delay line calibration register */ +#define SDRAM0_ECCESR 0x0098 /* ECC error status */ + +/* + * Memory Controller Options 0 + */ +#define SDRAM_CFG0_DCEN 0x80000000 /* SDRAM Controller Enable */ +#define SDRAM_CFG0_MCHK_MASK 0x30000000 /* Memory data errchecking mask */ +#define SDRAM_CFG0_MCHK_NON 0x00000000 /* No ECC generation */ +#define SDRAM_CFG0_MCHK_GEN 0x20000000 /* ECC generation */ +#define SDRAM_CFG0_MCHK_CHK 0x30000000 /* ECC generation and checking */ +#define SDRAM_CFG0_RDEN 0x08000000 /* Registered DIMM enable */ +#define SDRAM_CFG0_PMUD 0x04000000 /* Page management unit */ +#define SDRAM_CFG0_DMWD_MASK 0x02000000 /* DRAM width mask */ +#define SDRAM_CFG0_DMWD_32 0x00000000 /* 32 bits */ +#define SDRAM_CFG0_DMWD_64 0x02000000 /* 64 bits */ +#define SDRAM_CFG0_UIOS_MASK 0x00C00000 /* Unused IO State */ +#define SDRAM_CFG0_PDP 0x00200000 /* Page deallocation policy */ + +/* + * Memory Controller Options 1 + */ +#define SDRAM_CFG1_SRE 0x80000000 /* Self-Refresh Entry */ +#define SDRAM_CFG1_PMEN 0x40000000 /* Power Management Enable */ + +/* + * SDRAM DEVPOT Options + */ +#define SDRAM_DEVOPT_DLL 0x80000000 +#define SDRAM_DEVOPT_DS 0x40000000 + +/* + * SDRAM MCSTS Options + */ +#define SDRAM_MCSTS_MRSC 0x80000000 +#define SDRAM_MCSTS_SRMS 0x40000000 +#define SDRAM_MCSTS_CIS 0x20000000 +#define SDRAM_MCSTS_IDLE_NOT 0x00000000 /* Mem contr not idle */ + +/* + * SDRAM Refresh Timer Register + */ +#define SDRAM_RTR_RINT_MASK 0xFFFF0000 +#define SDRAM_RTR_RINT_ENCODE(n) (((n) << 16) & SDRAM_RTR_RINT_MASK) + +/* + * SDRAM UABus Base Address Reg + */ +#define SDRAM_UABBA_UBBA_MASK 0x0000000F + +/* + * Memory Bank 0-7 configuration + */ +#define SDRAM_BXCR_SDBA_MASK 0xff800000 /* Base address */ +#define SDRAM_BXCR_SDSZ_MASK 0x000e0000 /* Size */ +#define SDRAM_BXCR_SDSZ_8 0x00020000 /* 8M */ +#define SDRAM_BXCR_SDSZ_16 0x00040000 /* 16M */ +#define SDRAM_BXCR_SDSZ_32 0x00060000 /* 32M */ +#define SDRAM_BXCR_SDSZ_64 0x00080000 /* 64M */ +#define SDRAM_BXCR_SDSZ_128 0x000a0000 /* 128M */ +#define SDRAM_BXCR_SDSZ_256 0x000c0000 /* 256M */ +#define SDRAM_BXCR_SDSZ_512 0x000e0000 /* 512M */ +#define SDRAM_BXCR_SDAM_MASK 0x0000e000 /* Addressing mode */ +#define SDRAM_BXCR_SDAM_1 0x00000000 /* Mode 1 */ +#define SDRAM_BXCR_SDAM_2 0x00002000 /* Mode 2 */ +#define SDRAM_BXCR_SDAM_3 0x00004000 /* Mode 3 */ +#define SDRAM_BXCR_SDAM_4 0x00006000 /* Mode 4 */ +#define SDRAM_BXCR_SDBE 0x00000001 /* Memory Bank Enable */ + +/* + * SDRAM TR0 Options + */ +#define SDRAM_TR0_SDWR_MASK 0x80000000 +#define SDRAM_TR0_SDWR_2_CLK 0x00000000 +#define SDRAM_TR0_SDWR_3_CLK 0x80000000 +#define SDRAM_TR0_SDWD_MASK 0x40000000 +#define SDRAM_TR0_SDWD_0_CLK 0x00000000 +#define SDRAM_TR0_SDWD_1_CLK 0x40000000 +#define SDRAM_TR0_SDCL_MASK 0x01800000 +#define SDRAM_TR0_SDCL_2_0_CLK 0x00800000 +#define SDRAM_TR0_SDCL_2_5_CLK 0x01000000 +#define SDRAM_TR0_SDCL_3_0_CLK 0x01800000 +#define SDRAM_TR0_SDPA_MASK 0x000C0000 +#define SDRAM_TR0_SDPA_2_CLK 0x00040000 +#define SDRAM_TR0_SDPA_3_CLK 0x00080000 +#define SDRAM_TR0_SDPA_4_CLK 0x000C0000 +#define SDRAM_TR0_SDCP_MASK 0x00030000 +#define SDRAM_TR0_SDCP_2_CLK 0x00000000 +#define SDRAM_TR0_SDCP_3_CLK 0x00010000 +#define SDRAM_TR0_SDCP_4_CLK 0x00020000 +#define SDRAM_TR0_SDCP_5_CLK 0x00030000 +#define SDRAM_TR0_SDLD_MASK 0x0000C000 +#define SDRAM_TR0_SDLD_1_CLK 0x00000000 +#define SDRAM_TR0_SDLD_2_CLK 0x00004000 +#define SDRAM_TR0_SDRA_MASK 0x0000001C +#define SDRAM_TR0_SDRA_6_CLK 0x00000000 +#define SDRAM_TR0_SDRA_7_CLK 0x00000004 +#define SDRAM_TR0_SDRA_8_CLK 0x00000008 +#define SDRAM_TR0_SDRA_9_CLK 0x0000000C +#define SDRAM_TR0_SDRA_10_CLK 0x00000010 +#define SDRAM_TR0_SDRA_11_CLK 0x00000014 +#define SDRAM_TR0_SDRA_12_CLK 0x00000018 +#define SDRAM_TR0_SDRA_13_CLK 0x0000001C +#define SDRAM_TR0_SDRD_MASK 0x00000003 +#define SDRAM_TR0_SDRD_2_CLK 0x00000001 +#define SDRAM_TR0_SDRD_3_CLK 0x00000002 +#define SDRAM_TR0_SDRD_4_CLK 0x00000003 + +/* + * SDRAM TR1 Options + */ +#define SDRAM_TR1_RDSS_MASK 0xC0000000 +#define SDRAM_TR1_RDSS_TR0 0x00000000 +#define SDRAM_TR1_RDSS_TR1 0x40000000 +#define SDRAM_TR1_RDSS_TR2 0x80000000 +#define SDRAM_TR1_RDSS_TR3 0xC0000000 +#define SDRAM_TR1_RDSL_MASK 0x00C00000 +#define SDRAM_TR1_RDSL_STAGE1 0x00000000 +#define SDRAM_TR1_RDSL_STAGE2 0x00400000 +#define SDRAM_TR1_RDSL_STAGE3 0x00800000 +#define SDRAM_TR1_RDCD_MASK 0x00000800 +#define SDRAM_TR1_RDCD_RCD_0_0 0x00000000 +#define SDRAM_TR1_RDCD_RCD_1_2 0x00000800 +#define SDRAM_TR1_RDCT_MASK 0x000001FF +#define SDRAM_TR1_RDCT_ENCODE(x) (((x) << 0) & SDRAM_TR1_RDCT_MASK) +#define SDRAM_TR1_RDCT_DECODE(x) (((x) & SDRAM_TR1_RDCT_MASK) >> 0) +#define SDRAM_TR1_RDCT_MIN 0x00000000 +#define SDRAM_TR1_RDCT_MAX 0x000001FF + +/* + * SDRAM WDDCTR Options + */ +#define SDRAM_WDDCTR_WRCP_MASK 0xC0000000 +#define SDRAM_WDDCTR_WRCP_0DEG 0x00000000 +#define SDRAM_WDDCTR_WRCP_90DEG 0x40000000 +#define SDRAM_WDDCTR_WRCP_180DEG 0x80000000 +#define SDRAM_WDDCTR_DCD_MASK 0x000001FF + +/* + * SDRAM CLKTR Options + */ +#define SDRAM_CLKTR_CLKP_MASK 0xC0000000 +#define SDRAM_CLKTR_CLKP_0DEG 0x00000000 +#define SDRAM_CLKTR_CLKP_90DEG 0x40000000 +#define SDRAM_CLKTR_CLKP_180DEG 0x80000000 +#define SDRAM_CLKTR_DCDT_MASK 0x000001FF + +/* + * SDRAM DLYCAL Options + */ +#define SDRAM_DLYCAL_DLCV_MASK 0x000003FC +#define SDRAM_DLYCAL_DLCV_ENCODE(x) (((x)<<2) & SDRAM_DLYCAL_DLCV_MASK) +#define SDRAM_DLYCAL_DLCV_DECODE(x) (((x) & SDRAM_DLYCAL_DLCV_MASK)>>2) + +#endif /* CONFIG_SDRAM_PPC4xx_IBM_DDR */ + +#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR2) + +#define SDRAM_DLYCAL_DLCV_MASK 0x000003FC +#define SDRAM_DLYCAL_DLCV_ENCODE(x) (((x)<<2) & SDRAM_DLYCAL_DLCV_MASK) +#define SDRAM_DLYCAL_DLCV_DECODE(x) (((x) & SDRAM_DLYCAL_DLCV_MASK)>>2) + +#if !defined(CONFIG_405EX) +/* + * Memory queue defines + */ +#define SDRAMQ_DCR_BASE 0x040 + +#define SDRAM_R0BAS (SDRAMQ_DCR_BASE+0x0) /* rank 0 base address & size */ +#define SDRAM_R1BAS (SDRAMQ_DCR_BASE+0x1) /* rank 1 base address & size */ +#define SDRAM_R2BAS (SDRAMQ_DCR_BASE+0x2) /* rank 2 base address & size */ +#define SDRAM_R3BAS (SDRAMQ_DCR_BASE+0x3) /* rank 3 base address & size */ +#define SDRAM_CONF1HB (SDRAMQ_DCR_BASE+0x5) /* configuration 1 HB */ +#define SDRAM_CONF1HB_AAFR 0x80000000 /* Address Ack on First Request - Bit 0 */ +#define SDRAM_CONF1HB_PRPD 0x00080000 /* PLB Read pipeline Disable - Bit 12 */ +#define SDRAM_CONF1HB_PWPD 0x00040000 /* PLB Write pipeline Disable - Bit 13 */ +#define SDRAM_CONF1HB_PRW 0x00020000 /* PLB Read Wait - Bit 14 */ +#define SDRAM_CONF1HB_RPLM 0x00001000 /* Read Passing Limit 1 - Bits 16..19 */ +#define SDRAM_CONF1HB_RPEN 0x00000800 /* Read Passing Enable - Bit 20 */ +#define SDRAM_CONF1HB_RFTE 0x00000400 /* Read Flow Through Enable - Bit 21 */ +#define SDRAM_CONF1HB_WRCL 0x00000080 /* MCIF Cycle Limit 1 - Bits 22..24 */ +#define SDRAM_CONF1HB_MASK 0x0000F380 /* RPLM & WRCL mask */ + +#define SDRAM_ERRSTATHB (SDRAMQ_DCR_BASE+0x7) /* error status HB */ +#define SDRAM_ERRADDUHB (SDRAMQ_DCR_BASE+0x8) /* error address upper 32 HB */ +#define SDRAM_ERRADDLHB (SDRAMQ_DCR_BASE+0x9) /* error address lower 32 HB */ +#define SDRAM_PLBADDULL (SDRAMQ_DCR_BASE+0xA) /* PLB base address upper 32 LL */ +#define SDRAM_CONF1LL (SDRAMQ_DCR_BASE+0xB) /* configuration 1 LL */ +#define SDRAM_CONF1LL_AAFR 0x80000000 /* Address Ack on First Request - Bit 0 */ +#define SDRAM_CONF1LL_PRPD 0x00080000 /* PLB Read pipeline Disable - Bit 12 */ +#define SDRAM_CONF1LL_PWPD 0x00040000 /* PLB Write pipeline Disable - Bit 13 */ +#define SDRAM_CONF1LL_PRW 0x00020000 /* PLB Read Wait - Bit 14 */ +#define SDRAM_CONF1LL_RPLM 0x00001000 /* Read Passing Limit 1 - Bits 16..19 */ +#define SDRAM_CONF1LL_RPEN 0x00000800 /* Read Passing Enable - Bit 20 */ +#define SDRAM_CONF1LL_RFTE 0x00000400 /* Read Flow Through Enable - Bit 21 */ +#define SDRAM_CONF1LL_MASK 0x0000F000 /* RPLM mask */ + +#define SDRAM_ERRSTATLL (SDRAMQ_DCR_BASE+0xC) /* error status LL */ +#define SDRAM_ERRADDULL (SDRAMQ_DCR_BASE+0xD) /* error address upper 32 LL */ +#define SDRAM_ERRADDLLL (SDRAMQ_DCR_BASE+0xE) /* error address lower 32 LL */ +#define SDRAM_CONFPATHB (SDRAMQ_DCR_BASE+0xF) /* configuration between paths */ +#define SDRAM_CONFPATHB_TPEN 0x08000000 /* Transaction Passing Enable - Bit 4 */ + +#define SDRAM_PLBADDUHB (SDRAMQ_DCR_BASE+0x10) /* PLB base address upper 32 LL */ + +/* + * Memory Bank 0-7 configuration + */ +#if defined(CONFIG_440SPE) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ + defined(CONFIG_460SX) +#define SDRAM_RXBAS_SDBA_MASK 0xFFE00000 /* Base address */ +#define SDRAM_RXBAS_SDBA_ENCODE(n) ((u32)(((phys_size_t)(n) >> 2) & 0xFFE00000)) +#define SDRAM_RXBAS_SDBA_DECODE(n) ((((phys_size_t)(n)) & 0xFFE00000) << 2) +#endif /* CONFIG_440SPE */ +#if defined(CONFIG_440SP) +#define SDRAM_RXBAS_SDBA_MASK 0xFF800000 /* Base address */ +#define SDRAM_RXBAS_SDBA_ENCODE(n) ((((u32)(n))&0xFF800000)) +#define SDRAM_RXBAS_SDBA_DECODE(n) ((((u32)(n))&0xFF800000)) +#endif /* CONFIG_440SP */ +#define SDRAM_RXBAS_SDSZ_MASK 0x0000FFC0 /* Size */ +#define SDRAM_RXBAS_SDSZ_ENCODE(n) ((((u32)(n))&0x3FF)<<6) +#define SDRAM_RXBAS_SDSZ_DECODE(n) ((((u32)(n))>>6)&0x3FF) +#define SDRAM_RXBAS_SDSZ_0 0x00000000 /* 0M */ +#define SDRAM_RXBAS_SDSZ_8 0x0000FFC0 /* 8M */ +#define SDRAM_RXBAS_SDSZ_16 0x0000FF80 /* 16M */ +#define SDRAM_RXBAS_SDSZ_32 0x0000FF00 /* 32M */ +#define SDRAM_RXBAS_SDSZ_64 0x0000FE00 /* 64M */ +#define SDRAM_RXBAS_SDSZ_128 0x0000FC00 /* 128M */ +#define SDRAM_RXBAS_SDSZ_256 0x0000F800 /* 256M */ +#define SDRAM_RXBAS_SDSZ_512 0x0000F000 /* 512M */ +#define SDRAM_RXBAS_SDSZ_1024 0x0000E000 /* 1024M */ +#define SDRAM_RXBAS_SDSZ_2048 0x0000C000 /* 2048M */ +#define SDRAM_RXBAS_SDSZ_4096 0x00008000 /* 4096M */ +#else /* CONFIG_405EX */ +/* + * XXX - ToDo: + * Revisit this file to check if all these 405EX defines are correct and + * can be used in the common 44x_spd_ddr2 code as well. sr, 2008-06-02 + */ +#define SDRAM_RXBAS_SDSZ_MASK PPC_REG_VAL(19, 0xF) +#define SDRAM_RXBAS_SDSZ_4MB PPC_REG_VAL(19, 0x0) +#define SDRAM_RXBAS_SDSZ_8MB PPC_REG_VAL(19, 0x1) +#define SDRAM_RXBAS_SDSZ_16MB PPC_REG_VAL(19, 0x2) +#define SDRAM_RXBAS_SDSZ_32MB PPC_REG_VAL(19, 0x3) +#define SDRAM_RXBAS_SDSZ_64MB PPC_REG_VAL(19, 0x4) +#define SDRAM_RXBAS_SDSZ_128MB PPC_REG_VAL(19, 0x5) +#define SDRAM_RXBAS_SDSZ_256MB PPC_REG_VAL(19, 0x6) +#define SDRAM_RXBAS_SDSZ_512MB PPC_REG_VAL(19, 0x7) +#define SDRAM_RXBAS_SDSZ_1024MB PPC_REG_VAL(19, 0x8) +#define SDRAM_RXBAS_SDSZ_2048MB PPC_REG_VAL(19, 0x9) +#define SDRAM_RXBAS_SDSZ_4096MB PPC_REG_VAL(19, 0xA) +#define SDRAM_RXBAS_SDSZ_8192MB PPC_REG_VAL(19, 0xB) +#define SDRAM_RXBAS_SDSZ_8 SDRAM_RXBAS_SDSZ_8MB +#define SDRAM_RXBAS_SDSZ_16 SDRAM_RXBAS_SDSZ_16MB +#define SDRAM_RXBAS_SDSZ_32 SDRAM_RXBAS_SDSZ_32MB +#define SDRAM_RXBAS_SDSZ_64 SDRAM_RXBAS_SDSZ_64MB +#define SDRAM_RXBAS_SDSZ_128 SDRAM_RXBAS_SDSZ_128MB +#define SDRAM_RXBAS_SDSZ_256 SDRAM_RXBAS_SDSZ_256MB +#define SDRAM_RXBAS_SDSZ_512 SDRAM_RXBAS_SDSZ_512MB +#define SDRAM_RXBAS_SDSZ_1024 SDRAM_RXBAS_SDSZ_1024MB +#define SDRAM_RXBAS_SDSZ_2048 SDRAM_RXBAS_SDSZ_2048MB +#define SDRAM_RXBAS_SDSZ_4096 SDRAM_RXBAS_SDSZ_4096MB +#define SDRAM_RXBAS_SDSZ_8192 SDRAM_RXBAS_SDSZ_8192MB +#define SDRAM_RXBAS_SDAM_MODE0 PPC_REG_VAL(23, 0x0) +#define SDRAM_RXBAS_SDAM_MODE1 PPC_REG_VAL(23, 0x1) +#define SDRAM_RXBAS_SDAM_MODE2 PPC_REG_VAL(23, 0x2) +#define SDRAM_RXBAS_SDAM_MODE3 PPC_REG_VAL(23, 0x3) +#define SDRAM_RXBAS_SDAM_MODE4 PPC_REG_VAL(23, 0x4) +#define SDRAM_RXBAS_SDAM_MODE5 PPC_REG_VAL(23, 0x5) +#define SDRAM_RXBAS_SDAM_MODE6 PPC_REG_VAL(23, 0x6) +#define SDRAM_RXBAS_SDAM_MODE7 PPC_REG_VAL(23, 0x7) +#define SDRAM_RXBAS_SDAM_MODE8 PPC_REG_VAL(23, 0x8) +#define SDRAM_RXBAS_SDAM_MODE9 PPC_REG_VAL(23, 0x9) +#define SDRAM_RXBAS_SDBE_DISABLE PPC_REG_VAL(31, 0x0) +#define SDRAM_RXBAS_SDBE_ENABLE PPC_REG_VAL(31, 0x1) +#endif /* CONFIG_405EX */ + +/* + * Memory controller registers + */ +#define SDRAM_BESR 0x00 /* PLB bus error status (read/clear) */ +#define SDRAM_BESRT 0x01 /* PLB bus error status (test/set) */ +#define SDRAM_BEARL 0x02 /* PLB bus error address low */ +#define SDRAM_BEARH 0x03 /* PLB bus error address high */ +#define SDRAM_WMIRQ 0x06 /* PLB write master interrupt (read/clear) */ +#define SDRAM_WMIRQT 0x07 /* PLB write master interrupt (test/set) */ +#define SDRAM_PLBOPT 0x08 /* PLB slave options */ +#define SDRAM_PUABA 0x09 /* PLB upper address base */ +#ifndef CONFIG_405EX +#define SDRAM_MCSTAT 0x14 /* memory controller status */ +#else +#define SDRAM_MCSTAT 0x1F /* memory controller status */ +#endif +#define SDRAM_MCOPT1 0x20 /* memory controller options 1 */ +#define SDRAM_MCOPT2 0x21 /* memory controller options 2 */ +#define SDRAM_MODT0 0x22 /* on die termination for bank 0 */ +#define SDRAM_MODT1 0x23 /* on die termination for bank 1 */ +#define SDRAM_MODT2 0x24 /* on die termination for bank 2 */ +#define SDRAM_MODT3 0x25 /* on die termination for bank 3 */ +#define SDRAM_CODT 0x26 /* on die termination for controller */ +#define SDRAM_VVPR 0x27 /* variable VRef programmming */ +#define SDRAM_OPARS 0x28 /* on chip driver control setup */ +#define SDRAM_OPART 0x29 /* on chip driver control trigger */ +#define SDRAM_RTR 0x30 /* refresh timer */ +#define SDRAM_PMIT 0x34 /* power management idle timer */ +#define SDRAM_MB0CF 0x40 /* memory bank 0 configuration */ +#define SDRAM_MB1CF 0x44 /* memory bank 1 configuration */ +#define SDRAM_MB2CF 0x48 +#define SDRAM_MB3CF 0x4C +#define SDRAM_INITPLR0 0x50 /* manual initialization control */ +#define SDRAM_INITPLR1 0x51 /* manual initialization control */ +#define SDRAM_INITPLR2 0x52 /* manual initialization control */ +#define SDRAM_INITPLR3 0x53 /* manual initialization control */ +#define SDRAM_INITPLR4 0x54 /* manual initialization control */ +#define SDRAM_INITPLR5 0x55 /* manual initialization control */ +#define SDRAM_INITPLR6 0x56 /* manual initialization control */ +#define SDRAM_INITPLR7 0x57 /* manual initialization control */ +#define SDRAM_INITPLR8 0x58 /* manual initialization control */ +#define SDRAM_INITPLR9 0x59 /* manual initialization control */ +#define SDRAM_INITPLR10 0x5a /* manual initialization control */ +#define SDRAM_INITPLR11 0x5b /* manual initialization control */ +#define SDRAM_INITPLR12 0x5c /* manual initialization control */ +#define SDRAM_INITPLR13 0x5d /* manual initialization control */ +#define SDRAM_INITPLR14 0x5e /* manual initialization control */ +#define SDRAM_INITPLR15 0x5f /* manual initialization control */ +#define SDRAM_RQDC 0x70 /* read DQS delay control */ +#define SDRAM_RFDC 0x74 /* read feedback delay control */ +#define SDRAM_RDCC 0x78 /* read data capture control */ +#define SDRAM_DLCR 0x7A /* delay line calibration */ +#define SDRAM_CLKTR 0x80 /* DDR clock timing */ +#define SDRAM_WRDTR 0x81 /* write data, DQS, DM clock, timing */ +#define SDRAM_SDTR1 0x85 /* DDR SDRAM timing 1 */ +#define SDRAM_SDTR2 0x86 /* DDR SDRAM timing 2 */ +#define SDRAM_SDTR3 0x87 /* DDR SDRAM timing 3 */ +#define SDRAM_MMODE 0x88 /* memory mode */ +#define SDRAM_MEMODE 0x89 /* memory extended mode */ +#define SDRAM_ECCES 0x98 /* ECC error status */ +#define SDRAM_CID 0xA4 /* core ID */ +#ifndef CONFIG_405EX +#define SDRAM_RID 0xA8 /* revision ID */ +#endif +#define SDRAM_FCSR 0xB0 /* feedback calibration status */ +#define SDRAM_RTSR 0xB1 /* run time status tracking */ +#ifdef CONFIG_405EX +#define SDRAM_RID 0xF8 /* revision ID */ +#endif + +/* + * Memory Controller Bus Error Status + */ +#define SDRAM_BESR_MASK PPC_REG_VAL(7, 0xFF) +#define SDRAM_BESR_M0ID_MASK PPC_REG_VAL(3, 0xF) +#define SDRAM_BESR_M0ID_ICU PPC_REG_VAL(3, 0x0) +#define SDRAM_BESR_M0ID_PCIE0 PPC_REG_VAL(3, 0x1) +#define SDRAM_BESR_M0ID_PCIE1 PPC_REG_VAL(3, 0x2) +#define SDRAM_BESR_M0ID_DMA PPC_REG_VAL(3, 0x3) +#define SDRAM_BESR_M0ID_DCU PPC_REG_VAL(3, 0x4) +#define SDRAM_BESR_M0ID_OPB PPC_REG_VAL(3, 0x5) +#define SDRAM_BESR_M0ID_MAL PPC_REG_VAL(3, 0x6) +#define SDRAM_BESR_M0ID_SEC PPC_REG_VAL(3, 0x7) +#define SDRAM_BESR_M0ET_MASK PPC_REG_VAL(6, 0x7) +#define SDRAM_BESR_M0ET_NONE PPC_REG_VAL(6, 0x0) +#define SDRAM_BESR_M0ET_ECC PPC_REG_VAL(6, 0x1) +#define SDRAM_BESR_M0RW_WRITE PPC_REG_VAL(7, 0) +#define SDRAM_BESR_M0RW_READ PPC_REG_VAL(8, 1) + +/* + * Memory Controller Status + */ +#define SDRAM_MCSTAT_MIC_MASK 0x80000000 /* Memory init status mask */ +#define SDRAM_MCSTAT_MIC_NOTCOMP 0x00000000 /* Mem init not complete */ +#define SDRAM_MCSTAT_MIC_COMP 0x80000000 /* Mem init complete */ +#define SDRAM_MCSTAT_SRMS_MASK 0x40000000 /* Mem self refresh stat mask */ +#define SDRAM_MCSTAT_SRMS_NOT_SF 0x00000000 /* Mem not in self refresh */ +#define SDRAM_MCSTAT_SRMS_SF 0x40000000 /* Mem in self refresh */ +#define SDRAM_MCSTAT_IDLE_MASK 0x20000000 /* Mem self refresh stat mask */ +#define SDRAM_MCSTAT_IDLE_NOT 0x00000000 /* Mem contr not idle */ +#define SDRAM_MCSTAT_IDLE 0x20000000 /* Mem contr idle */ + +/* + * Memory Controller Options 1 + */ +#define SDRAM_MCOPT1_MCHK_MASK 0x30000000 /* Memory data err check mask*/ +#define SDRAM_MCOPT1_MCHK_NON 0x00000000 /* No ECC generation */ +#define SDRAM_MCOPT1_MCHK_GEN 0x20000000 /* ECC generation */ +#define SDRAM_MCOPT1_MCHK_CHK 0x10000000 /* ECC generation and check */ +#define SDRAM_MCOPT1_MCHK_CHK_REP 0x30000000 /* ECC generation, chk, report*/ +#define SDRAM_MCOPT1_MCHK_CHK_DECODE(n) ((((u32)(n))>>28)&0x3) +#define SDRAM_MCOPT1_RDEN_MASK 0x08000000 /* Registered DIMM mask */ +#define SDRAM_MCOPT1_RDEN 0x08000000 /* Registered DIMM enable */ +#define SDRAM_MCOPT1_PMU_MASK 0x06000000 /* Page management unit mask */ +#define SDRAM_MCOPT1_PMU_CLOSE 0x00000000 /* PMU Close */ +#define SDRAM_MCOPT1_PMU_OPEN 0x04000000 /* PMU Open */ +#define SDRAM_MCOPT1_PMU_AUTOCLOSE 0x02000000 /* PMU AutoClose */ +#define SDRAM_MCOPT1_DMWD_MASK 0x01000000 /* DRAM width mask */ +#define SDRAM_MCOPT1_DMWD_32 0x00000000 /* 32 bits */ +#define SDRAM_MCOPT1_DMWD_64 0x01000000 /* 64 bits */ +#define SDRAM_MCOPT1_UIOS_MASK 0x00C00000 /* Unused IO State */ +#define SDRAM_MCOPT1_BCNT_MASK 0x00200000 /* Bank count */ +#define SDRAM_MCOPT1_4_BANKS 0x00000000 /* 4 Banks */ +#define SDRAM_MCOPT1_8_BANKS 0x00200000 /* 8 Banks */ +#define SDRAM_MCOPT1_DDR_TYPE_MASK 0x00100000 /* DDR Memory Type mask */ +#define SDRAM_MCOPT1_DDR1_TYPE 0x00000000 /* DDR1 Memory Type */ +#define SDRAM_MCOPT1_DDR2_TYPE 0x00100000 /* DDR2 Memory Type */ +#define SDRAM_MCOPT1_QDEP 0x00020000 /* 4 commands deep */ +#define SDRAM_MCOPT1_RWOO_MASK 0x00008000 /* Out of Order Read mask */ +#define SDRAM_MCOPT1_RWOO_DISABLED 0x00000000 /* disabled */ +#define SDRAM_MCOPT1_RWOO_ENABLED 0x00008000 /* enabled */ +#define SDRAM_MCOPT1_WOOO_MASK 0x00004000 /* Out of Order Write mask */ +#define SDRAM_MCOPT1_WOOO_DISABLED 0x00000000 /* disabled */ +#define SDRAM_MCOPT1_WOOO_ENABLED 0x00004000 /* enabled */ +#define SDRAM_MCOPT1_DCOO_MASK 0x00002000 /* All Out of Order mask */ +#define SDRAM_MCOPT1_DCOO_DISABLED 0x00002000 /* disabled */ +#define SDRAM_MCOPT1_DCOO_ENABLED 0x00000000 /* enabled */ +#define SDRAM_MCOPT1_DREF_MASK 0x00001000 /* Deferred refresh mask */ +#define SDRAM_MCOPT1_DREF_NORMAL 0x00000000 /* normal refresh */ +#define SDRAM_MCOPT1_DREF_DEFER_4 0x00001000 /* defer up to 4 refresh cmd */ + +/* + * Memory Controller Options 2 + */ +#define SDRAM_MCOPT2_SREN_MASK 0x80000000 /* Self Test mask */ +#define SDRAM_MCOPT2_SREN_EXIT 0x00000000 /* Self Test exit */ +#define SDRAM_MCOPT2_SREN_ENTER 0x80000000 /* Self Test enter */ +#define SDRAM_MCOPT2_PMEN_MASK 0x40000000 /* Power Management mask */ +#define SDRAM_MCOPT2_PMEN_DISABLE 0x00000000 /* disable */ +#define SDRAM_MCOPT2_PMEN_ENABLE 0x40000000 /* enable */ +#define SDRAM_MCOPT2_IPTR_MASK 0x20000000 /* Init Trigger Reg mask */ +#define SDRAM_MCOPT2_IPTR_IDLE 0x00000000 /* idle */ +#define SDRAM_MCOPT2_IPTR_EXECUTE 0x20000000 /* execute preloaded init */ +#define SDRAM_MCOPT2_XSRP_MASK 0x10000000 /* Exit Self Refresh Prevent */ +#define SDRAM_MCOPT2_XSRP_ALLOW 0x00000000 /* allow self refresh exit */ +#define SDRAM_MCOPT2_XSRP_PREVENT 0x10000000 /* prevent self refresh exit */ +#define SDRAM_MCOPT2_DCEN_MASK 0x08000000 /* SDRAM Controller Enable */ +#define SDRAM_MCOPT2_DCEN_DISABLE 0x00000000 /* SDRAM Controller Enable */ +#define SDRAM_MCOPT2_DCEN_ENABLE 0x08000000 /* SDRAM Controller Enable */ +#define SDRAM_MCOPT2_ISIE_MASK 0x04000000 /* Init Seq Interruptable mas*/ +#define SDRAM_MCOPT2_ISIE_DISABLE 0x00000000 /* disable */ +#define SDRAM_MCOPT2_ISIE_ENABLE 0x04000000 /* enable */ + +/* + * SDRAM Refresh Timer Register + */ +#define SDRAM_RTR_RINT_MASK 0xFFF80000 +#define SDRAM_RTR_RINT_ENCODE(n) ((((u32)(n))&0xFFF8)<<16) +#define SDRAM_RTR_RINT_DECODE(n) ((((u32)(n))>>16)&0xFFF8) + +/* + * SDRAM Read DQS Delay Control Register + */ +#define SDRAM_RQDC_RQDE_MASK 0x80000000 +#define SDRAM_RQDC_RQDE_DISABLE 0x00000000 +#define SDRAM_RQDC_RQDE_ENABLE 0x80000000 +#define SDRAM_RQDC_RQFD_MASK 0x000001FF +#define SDRAM_RQDC_RQFD_ENCODE(n) ((((u32)(n))&0x1FF)<<0) + +#define SDRAM_RQDC_RQFD_MAX 0x1FF + +/* + * SDRAM Read Data Capture Control Register + */ +#define SDRAM_RDCC_RDSS_MASK 0xC0000000 +#define SDRAM_RDCC_RDSS_T1 0x00000000 +#define SDRAM_RDCC_RDSS_T2 0x40000000 +#define SDRAM_RDCC_RDSS_T3 0x80000000 +#define SDRAM_RDCC_RDSS_T4 0xC0000000 +#define SDRAM_RDCC_RSAE_MASK 0x00000001 +#define SDRAM_RDCC_RSAE_DISABLE 0x00000001 +#define SDRAM_RDCC_RSAE_ENABLE 0x00000000 +#define SDRAM_RDCC_RDSS_ENCODE(n) ((((u32)(n))&0x03)<<30) +#define SDRAM_RDCC_RDSS_DECODE(n) ((((u32)(n))>>30)&0x03) + +/* + * SDRAM Read Feedback Delay Control Register + */ +#define SDRAM_RFDC_ARSE_MASK 0x80000000 +#define SDRAM_RFDC_ARSE_DISABLE 0x80000000 +#define SDRAM_RFDC_ARSE_ENABLE 0x00000000 +#define SDRAM_RFDC_RFOS_MASK 0x007F0000 +#define SDRAM_RFDC_RFOS_ENCODE(n) ((((u32)(n))&0x7F)<<16) +#define SDRAM_RFDC_RFFD_MASK 0x000007FF +#define SDRAM_RFDC_RFFD_ENCODE(n) ((((u32)(n))&0x7FF)<<0) + +#define SDRAM_RFDC_RFFD_MAX 0x7FF + +/* + * SDRAM Delay Line Calibration Register + */ +#define SDRAM_DLCR_DCLM_MASK 0x80000000 +#define SDRAM_DLCR_DCLM_MANUAL 0x80000000 +#define SDRAM_DLCR_DCLM_AUTO 0x00000000 +#define SDRAM_DLCR_DLCR_MASK 0x08000000 +#define SDRAM_DLCR_DLCR_CALIBRATE 0x08000000 +#define SDRAM_DLCR_DLCR_IDLE 0x00000000 +#define SDRAM_DLCR_DLCS_MASK 0x07000000 +#define SDRAM_DLCR_DLCS_NOT_RUN 0x00000000 +#define SDRAM_DLCR_DLCS_IN_PROGRESS 0x01000000 +#define SDRAM_DLCR_DLCS_COMPLETE 0x02000000 +#define SDRAM_DLCR_DLCS_CONT_DONE 0x03000000 +#define SDRAM_DLCR_DLCS_ERROR 0x04000000 +#define SDRAM_DLCR_DLCV_MASK 0x000001FF +#define SDRAM_DLCR_DLCV_ENCODE(n) ((((u32)(n))&0x1FF)<<0) +#define SDRAM_DLCR_DLCV_DECODE(n) ((((u32)(n))>>0)&0x1FF) + +/* + * SDRAM Memory On Die Terimination Control Register + */ +#define SDRAM_MODT_ODTON_DISABLE PPC_REG_VAL(0, 0) +#define SDRAM_MODT_ODTON_ENABLE PPC_REG_VAL(0, 1) +#define SDRAM_MODT_EB1W_DISABLE PPC_REG_VAL(1, 0) +#define SDRAM_MODT_EB1W_ENABLE PPC_REG_VAL(1, 1) +#define SDRAM_MODT_EB1R_DISABLE PPC_REG_VAL(2, 0) +#define SDRAM_MODT_EB1R_ENABLE PPC_REG_VAL(2, 1) +#define SDRAM_MODT_EB0W_DISABLE PPC_REG_VAL(7, 0) +#define SDRAM_MODT_EB0W_ENABLE PPC_REG_VAL(7, 1) +#define SDRAM_MODT_EB0R_DISABLE PPC_REG_VAL(8, 0) +#define SDRAM_MODT_EB0R_ENABLE PPC_REG_VAL(8, 1) + +/* + * SDRAM Controller On Die Termination Register + */ +#define SDRAM_CODT_ODT_ON PPC_REG_VAL(0, 1) +#define SDRAM_CODT_ODT_OFF PPC_REG_VAL(0, 0) +#define SDRAM_CODT_RK1W_ON PPC_REG_VAL(1, 1) +#define SDRAM_CODT_RK1W_OFF PPC_REG_VAL(1, 0) +#define SDRAM_CODT_RK1R_ON PPC_REG_VAL(2, 1) +#define SDRAM_CODT_RK1R_OFF PPC_REG_VAL(2, 0) +#define SDRAM_CODT_RK0W_ON PPC_REG_VAL(7, 1) +#define SDRAM_CODT_RK0W_OFF PPC_REG_VAL(7, 0) +#define SDRAM_CODT_RK0R_ON PPC_REG_VAL(8, 1) +#define SDRAM_CODT_RK0R_OFF PPC_REG_VAL(8, 0) +#define SDRAM_CODT_ODTSH_NORMAL PPC_REG_VAL(10, 0) +#define SDRAM_CODT_ODTSH_REMOVE_ONE_AT_END PPC_REG_VAL(10, 1) +#define SDRAM_CODT_ODTSH_ADD_ONE_AT_START PPC_REG_VAL(10, 2) +#define SDRAM_CODT_ODTSH_SHIFT_ONE_EARLIER PPC_REG_VAL(10, 3) +#define SDRAM_CODT_CODTZ_75OHM PPC_REG_VAL(11, 0) +#define SDRAM_CODT_CKEG_ON PPC_REG_VAL(12, 1) +#define SDRAM_CODT_CKEG_OFF PPC_REG_VAL(12, 0) +#define SDRAM_CODT_CTLG_ON PPC_REG_VAL(13, 1) +#define SDRAM_CODT_CTLG_OFF PPC_REG_VAL(13, 0) +#define SDRAM_CODT_FBDG_ON PPC_REG_VAL(14, 1) +#define SDRAM_CODT_FBDG_OFF PPC_REG_VAL(14, 0) +#define SDRAM_CODT_FBRG_ON PPC_REG_VAL(15, 1) +#define SDRAM_CODT_FBRG_OFF PPC_REG_VAL(15, 0) +#define SDRAM_CODT_CKLZ_36OHM PPC_REG_VAL(18, 1) +#define SDRAM_CODT_CKLZ_18OHM PPC_REG_VAL(18, 0) +#define SDRAM_CODT_DQS_VOLTAGE_DDR_MASK PPC_REG_VAL(26, 1) +#define SDRAM_CODT_DQS_2_5_V_DDR1 PPC_REG_VAL(26, 0) +#define SDRAM_CODT_DQS_1_8_V_DDR2 PPC_REG_VAL(26, 1) +#define SDRAM_CODT_DQS_MASK PPC_REG_VAL(27, 1) +#define SDRAM_CODT_DQS_DIFFERENTIAL PPC_REG_VAL(27, 0) +#define SDRAM_CODT_DQS_SINGLE_END PPC_REG_VAL(27, 1) +#define SDRAM_CODT_CKSE_DIFFERENTIAL PPC_REG_VAL(28, 0) +#define SDRAM_CODT_CKSE_SINGLE_END PPC_REG_VAL(28, 1) +#define SDRAM_CODT_FEEBBACK_RCV_SINGLE_END PPC_REG_VAL(29, 1) +#define SDRAM_CODT_FEEBBACK_DRV_SINGLE_END PPC_REG_VAL(30, 1) +#define SDRAM_CODT_IO_HIZ PPC_REG_VAL(31, 0) +#define SDRAM_CODT_IO_NMODE PPC_REG_VAL(31, 1) + +/* + * SDRAM Initialization Preload Register + */ +#define SDRAM_INITPLR_ENABLE PPC_REG_VAL(0, 1) +#define SDRAM_INITPLR_DISABLE PPC_REG_VAL(0, 0) +#define SDRAM_INITPLR_IMWT_MASK PPC_REG_VAL(8, 0xFF) +#define SDRAM_INITPLR_IMWT_ENCODE(n) PPC_REG_VAL(8, \ + (static_cast(u32, \ + n)) \ + & 0xFF) +#define SDRAM_INITPLR_ICMD_MASK PPC_REG_VAL(12, 0x7) +#define SDRAM_INITPLR_ICMD_ENCODE(n) PPC_REG_VAL(12, \ + (static_cast(u32, \ + n)) \ + & 0x7) +#define SDRAM_INITPLR_IBA_MASK PPC_REG_VAL(15, 0x7) +#define SDRAM_INITPLR_IBA_ENCODE(n) PPC_REG_VAL(15, \ + (static_cast(u32, \ + n)) \ + & 0x7) +#define SDRAM_INITPLR_IMA_MASK PPC_REG_VAL(31, 0x7FFF) +#define SDRAM_INITPLR_IMA_ENCODE(n) PPC_REG_VAL(31, \ + (static_cast(u32, \ + n)) \ + & 0x7FFF) + +/* + * JEDEC DDR Initialization Commands + */ +#define JEDEC_CMD_NOP 7 +#define JEDEC_CMD_PRECHARGE 2 +#define JEDEC_CMD_REFRESH 1 +#define JEDEC_CMD_EMR 0 +#define JEDEC_CMD_READ 5 +#define JEDEC_CMD_WRITE 4 + +/* + * JEDEC Precharge Command Memory Address Arguments + */ +#define JEDEC_MA_PRECHARGE_ONE (0 << 10) +#define JEDEC_MA_PRECHARGE_ALL (1 << 10) + +/* + * JEDEC DDR EMR Command Bank Address Arguments + */ +#define JEDEC_BA_MR 0 +#define JEDEC_BA_EMR 1 +#define JEDEC_BA_EMR2 2 +#define JEDEC_BA_EMR3 3 + +/* + * JEDEC DDR Mode Register + */ +#define JEDEC_MA_MR_PDMODE_FAST_EXIT (0 << 12) +#define JEDEC_MA_MR_PDMODE_SLOW_EXIT (1 << 12) +#define JEDEC_MA_MR_WR_MASK (0x7 << 9) +#define JEDEC_MA_MR_WR_DDR1 (0x0 << 9) +#define JEDEC_MA_MR_WR_DDR2_2_CYC (0x1 << 9) +#define JEDEC_MA_MR_WR_DDR2_3_CYC (0x2 << 9) +#define JEDEC_MA_MR_WR_DDR2_4_CYC (0x3 << 9) +#define JEDEC_MA_MR_WR_DDR2_5_CYC (0x4 << 9) +#define JEDEC_MA_MR_WR_DDR2_6_CYC (0x5 << 9) +#define JEDEC_MA_MR_DLL_RESET (1 << 8) +#define JEDEC_MA_MR_MODE_NORMAL (0 << 8) +#define JEDEC_MA_MR_MODE_TEST (1 << 8) +#define JEDEC_MA_MR_CL_MASK (0x7 << 4) +#define JEDEC_MA_MR_CL_DDR1_2_0_CLK (0x2 << 4) +#define JEDEC_MA_MR_CL_DDR1_2_5_CLK (0x6 << 4) +#define JEDEC_MA_MR_CL_DDR1_3_0_CLK (0x3 << 4) +#define JEDEC_MA_MR_CL_DDR2_2_0_CLK (0x2 << 4) +#define JEDEC_MA_MR_CL_DDR2_3_0_CLK (0x3 << 4) +#define JEDEC_MA_MR_CL_DDR2_4_0_CLK (0x4 << 4) +#define JEDEC_MA_MR_CL_DDR2_5_0_CLK (0x5 << 4) +#define JEDEC_MA_MR_CL_DDR2_6_0_CLK (0x6 << 4) +#define JEDEC_MA_MR_CL_DDR2_7_0_CLK (0x7 << 4) +#define JEDEC_MA_MR_BTYP_SEQUENTIAL (0 << 3) +#define JEDEC_MA_MR_BTYP_INTERLEAVED (1 << 3) +#define JEDEC_MA_MR_BLEN_MASK (0x7 << 0) +#define JEDEC_MA_MR_BLEN_4 (2 << 0) +#define JEDEC_MA_MR_BLEN_8 (3 << 0) + +/* + * JEDEC DDR Extended Mode Register + */ +#define JEDEC_MA_EMR_OUTPUT_MASK (1 << 12) +#define JEDEC_MA_EMR_OUTPUT_ENABLE (0 << 12) +#define JEDEC_MA_EMR_OUTPUT_DISABLE (1 << 12) +#define JEDEC_MA_EMR_RQDS_MASK (1 << 11) +#define JEDEC_MA_EMR_RDQS_DISABLE (0 << 11) +#define JEDEC_MA_EMR_RDQS_ENABLE (1 << 11) +#define JEDEC_MA_EMR_DQS_MASK (1 << 10) +#define JEDEC_MA_EMR_DQS_DISABLE (1 << 10) +#define JEDEC_MA_EMR_DQS_ENABLE (0 << 10) +#define JEDEC_MA_EMR_OCD_MASK (0x7 << 7) +#define JEDEC_MA_EMR_OCD_EXIT (0 << 7) +#define JEDEC_MA_EMR_OCD_ENTER (7 << 7) +#define JEDEC_MA_EMR_AL_DDR1_0_CYC (0 << 3) +#define JEDEC_MA_EMR_AL_DDR2_1_CYC (1 << 3) +#define JEDEC_MA_EMR_AL_DDR2_2_CYC (2 << 3) +#define JEDEC_MA_EMR_AL_DDR2_3_CYC (3 << 3) +#define JEDEC_MA_EMR_AL_DDR2_4_CYC (4 << 3) +#define JEDEC_MA_EMR_RTT_MASK (0x11 << 2) +#define JEDEC_MA_EMR_RTT_DISABLED (0x00 << 2) +#define JEDEC_MA_EMR_RTT_75OHM (0x01 << 2) +#define JEDEC_MA_EMR_RTT_150OHM (0x10 << 2) +#define JEDEC_MA_EMR_RTT_50OHM (0x11 << 2) +#define JEDEC_MA_EMR_ODS_MASK (1 << 1) +#define JEDEC_MA_EMR_ODS_NORMAL (0 << 1) +#define JEDEC_MA_EMR_ODS_WEAK (1 << 1) +#define JEDEC_MA_EMR_DLL_MASK (1 << 0) +#define JEDEC_MA_EMR_DLL_ENABLE (0 << 0) +#define JEDEC_MA_EMR_DLL_DISABLE (1 << 0) + +/* + * JEDEC DDR Extended Mode Register 2 + */ +#define JEDEC_MA_EMR2_TEMP_COMMERCIAL (0 << 7) +#define JEDEC_MA_EMR2_TEMP_INDUSTRIAL (1 << 7) + +/* + * SDRAM Mode Register (Corresponds 1:1 w/ JEDEC Mode Register) + */ +#define SDRAM_MMODE_WR_MASK JEDEC_MA_MR_WR_MASK +#define SDRAM_MMODE_WR_DDR1 JEDEC_MA_MR_WR_DDR1 +#define SDRAM_MMODE_WR_DDR2_2_CYC JEDEC_MA_MR_WR_DDR2_2_CYC +#define SDRAM_MMODE_WR_DDR2_3_CYC JEDEC_MA_MR_WR_DDR2_3_CYC +#define SDRAM_MMODE_WR_DDR2_4_CYC JEDEC_MA_MR_WR_DDR2_4_CYC +#define SDRAM_MMODE_WR_DDR2_5_CYC JEDEC_MA_MR_WR_DDR2_5_CYC +#define SDRAM_MMODE_WR_DDR2_6_CYC JEDEC_MA_MR_WR_DDR2_6_CYC +#define SDRAM_MMODE_DCL_MASK JEDEC_MA_MR_CL_MASK +#define SDRAM_MMODE_DCL_DDR1_2_0_CLK JEDEC_MA_MR_CL_DDR1_2_0_CLK +#define SDRAM_MMODE_DCL_DDR1_2_5_CLK JEDEC_MA_MR_CL_DDR1_2_5_CLK +#define SDRAM_MMODE_DCL_DDR1_3_0_CLK JEDEC_MA_MR_CL_DDR1_3_0_CLK +#define SDRAM_MMODE_DCL_DDR2_2_0_CLK JEDEC_MA_MR_CL_DDR2_2_0_CLK +#define SDRAM_MMODE_DCL_DDR2_3_0_CLK JEDEC_MA_MR_CL_DDR2_3_0_CLK +#define SDRAM_MMODE_DCL_DDR2_4_0_CLK JEDEC_MA_MR_CL_DDR2_4_0_CLK +#define SDRAM_MMODE_DCL_DDR2_5_0_CLK JEDEC_MA_MR_CL_DDR2_5_0_CLK +#define SDRAM_MMODE_DCL_DDR2_6_0_CLK JEDEC_MA_MR_CL_DDR2_6_0_CLK +#define SDRAM_MMODE_DCL_DDR2_7_0_CLK JEDEC_MA_MR_CL_DDR2_7_0_CLK +#define SDRAM_MMODE_BTYP_SEQUENTIAL JEDEC_MA_MR_BTYP_SEQUENTIAL +#define SDRAM_MMODE_BTYP_INTERLEAVED JEDEC_MA_MR_BTYP_INTERLEAVED +#define SDRAM_MMODE_BLEN_MASK JEDEC_MA_MR_BLEN_MASK +#define SDRAM_MMODE_BLEN_4 JEDEC_MA_MR_BLEN_4 +#define SDRAM_MMODE_BLEN_8 JEDEC_MA_MR_BLEN_8 + +/* + * SDRAM Extended Mode Register (Corresponds 1:1 w/ JEDEC Extended + * Mode Register) + */ +#define SDRAM_MEMODE_QOFF_MASK JEDEC_MA_EMR_OUTPUT_MASK +#define SDRAM_MEMODE_QOFF_DISABLE JEDEC_MA_EMR_OUTPUT_DISABLE +#define SDRAM_MEMODE_QOFF_ENABLE JEDEC_MA_EMR_OUTPUT_ENABLE +#define SDRAM_MEMODE_RDQS_MASK JEDEC_MA_EMR_RQDS_MASK +#define SDRAM_MEMODE_RDQS_DISABLE JEDEC_MA_EMR_RDQS_DISABLE +#define SDRAM_MEMODE_RDQS_ENABLE JEDEC_MA_EMR_RDQS_ENABLE +#define SDRAM_MEMODE_DQS_MASK JEDEC_MA_EMR_DQS_MASK +#define SDRAM_MEMODE_DQS_DISABLE JEDEC_MA_EMR_DQS_DISABLE +#define SDRAM_MEMODE_DQS_ENABLE JEDEC_MA_EMR_DQS_ENABLE +#define SDRAM_MEMODE_AL_DDR1_0_CYC JEDEC_MA_EMR_AL_DDR1_0_CYC +#define SDRAM_MEMODE_AL_DDR2_1_CYC JEDEC_MA_EMR_AL_DDR2_1_CYC +#define SDRAM_MEMODE_AL_DDR2_2_CYC JEDEC_MA_EMR_AL_DDR2_2_CYC +#define SDRAM_MEMODE_AL_DDR2_3_CYC JEDEC_MA_EMR_AL_DDR2_3_CYC +#define SDRAM_MEMODE_AL_DDR2_4_CYC JEDEC_MA_EMR_AL_DDR2_4_CYC +#define SDRAM_MEMODE_RTT_MASK JEDEC_MA_EMR_RTT_MASK +#define SDRAM_MEMODE_RTT_DISABLED JEDEC_MA_EMR_RTT_DISABLED +#define SDRAM_MEMODE_RTT_75OHM JEDEC_MA_EMR_RTT_75OHM +#define SDRAM_MEMODE_RTT_150OHM JEDEC_MA_EMR_RTT_150OHM +#define SDRAM_MEMODE_RTT_50OHM JEDEC_MA_EMR_RTT_50OHM +#define SDRAM_MEMODE_DIC_MASK JEDEC_MA_EMR_ODS_MASK +#define SDRAM_MEMODE_DIC_NORMAL JEDEC_MA_EMR_ODS_NORMAL +#define SDRAM_MEMODE_DIC_WEAK JEDEC_MA_EMR_ODS_WEAK +#define SDRAM_MEMODE_DLL_MASK JEDEC_MA_EMR_DLL_MASK +#define SDRAM_MEMODE_DLL_DISABLE JEDEC_MA_EMR_DLL_DISABLE +#define SDRAM_MEMODE_DLL_ENABLE JEDEC_MA_EMR_DLL_ENABLE + +/* + * SDRAM Clock Timing Register + */ +#define SDRAM_CLKTR_CLKP_MASK 0xC0000000 +#define SDRAM_CLKTR_CLKP_0_DEG 0x00000000 +#define SDRAM_CLKTR_CLKP_180_DEG_ADV 0x80000000 +#define SDRAM_CLKTR_CLKP_90_DEG_ADV 0x40000000 +#define SDRAM_CLKTR_CLKP_270_DEG_ADV 0xC0000000 + +/* + * SDRAM Write Timing Register + */ +#define SDRAM_WRDTR_LLWP_MASK 0x10000000 +#define SDRAM_WRDTR_LLWP_DIS 0x10000000 +#define SDRAM_WRDTR_LLWP_1_CYC 0x00000000 +#define SDRAM_WRDTR_WTR_MASK 0x0E000000 +#define SDRAM_WRDTR_WTR_0_DEG 0x06000000 +#define SDRAM_WRDTR_WTR_90_DEG_ADV 0x04000000 +#define SDRAM_WRDTR_WTR_180_DEG_ADV 0x02000000 +#define SDRAM_WRDTR_WTR_270_DEG_ADV 0x00000000 + +/* + * SDRAM SDTR1 Options + */ +#define SDRAM_SDTR1_LDOF_MASK 0x80000000 +#define SDRAM_SDTR1_LDOF_1_CLK 0x00000000 +#define SDRAM_SDTR1_LDOF_2_CLK 0x80000000 +#define SDRAM_SDTR1_RTW_MASK 0x00F00000 +#define SDRAM_SDTR1_RTW_2_CLK 0x00200000 +#define SDRAM_SDTR1_RTW_3_CLK 0x00300000 +#define SDRAM_SDTR1_WTWO_MASK 0x000F0000 +#define SDRAM_SDTR1_WTWO_0_CLK 0x00000000 +#define SDRAM_SDTR1_WTWO_1_CLK 0x00010000 +#define SDRAM_SDTR1_RTRO_MASK 0x0000F000 +#define SDRAM_SDTR1_RTRO_1_CLK 0x00001000 +#define SDRAM_SDTR1_RTRO_2_CLK 0x00002000 + +/* + * SDRAM SDTR2 Options + */ +#define SDRAM_SDTR2_RCD_MASK 0xF0000000 +#define SDRAM_SDTR2_RCD_1_CLK 0x10000000 +#define SDRAM_SDTR2_RCD_2_CLK 0x20000000 +#define SDRAM_SDTR2_RCD_3_CLK 0x30000000 +#define SDRAM_SDTR2_RCD_4_CLK 0x40000000 +#define SDRAM_SDTR2_RCD_5_CLK 0x50000000 +#define SDRAM_SDTR2_WTR_MASK 0x0F000000 +#define SDRAM_SDTR2_WTR_1_CLK 0x01000000 +#define SDRAM_SDTR2_WTR_2_CLK 0x02000000 +#define SDRAM_SDTR2_WTR_3_CLK 0x03000000 +#define SDRAM_SDTR2_WTR_4_CLK 0x04000000 +#define SDRAM_SDTR3_WTR_ENCODE(n) ((((u32)(n))&0xF)<<24) +#define SDRAM_SDTR2_XSNR_MASK 0x00FF0000 +#define SDRAM_SDTR2_XSNR_8_CLK 0x00080000 +#define SDRAM_SDTR2_XSNR_16_CLK 0x00100000 +#define SDRAM_SDTR2_XSNR_32_CLK 0x00200000 +#define SDRAM_SDTR2_XSNR_64_CLK 0x00400000 +#define SDRAM_SDTR2_WPC_MASK 0x0000F000 +#define SDRAM_SDTR2_WPC_2_CLK 0x00002000 +#define SDRAM_SDTR2_WPC_3_CLK 0x00003000 +#define SDRAM_SDTR2_WPC_4_CLK 0x00004000 +#define SDRAM_SDTR2_WPC_5_CLK 0x00005000 +#define SDRAM_SDTR2_WPC_6_CLK 0x00006000 +#define SDRAM_SDTR3_WPC_ENCODE(n) ((((u32)(n))&0xF)<<12) +#define SDRAM_SDTR2_RPC_MASK 0x00000F00 +#define SDRAM_SDTR2_RPC_2_CLK 0x00000200 +#define SDRAM_SDTR2_RPC_3_CLK 0x00000300 +#define SDRAM_SDTR2_RPC_4_CLK 0x00000400 +#define SDRAM_SDTR2_RP_MASK 0x000000F0 +#define SDRAM_SDTR2_RP_3_CLK 0x00000030 +#define SDRAM_SDTR2_RP_4_CLK 0x00000040 +#define SDRAM_SDTR2_RP_5_CLK 0x00000050 +#define SDRAM_SDTR2_RP_6_CLK 0x00000060 +#define SDRAM_SDTR2_RP_7_CLK 0x00000070 +#define SDRAM_SDTR2_RRD_MASK 0x0000000F +#define SDRAM_SDTR2_RRD_2_CLK 0x00000002 +#define SDRAM_SDTR2_RRD_3_CLK 0x00000003 + +/* + * SDRAM SDTR3 Options + */ +#define SDRAM_SDTR3_RAS_MASK 0x1F000000 +#define SDRAM_SDTR3_RAS_ENCODE(n) ((((u32)(n))&0x1F)<<24) +#define SDRAM_SDTR3_RC_MASK 0x001F0000 +#define SDRAM_SDTR3_RC_ENCODE(n) ((((u32)(n))&0x1F)<<16) +#define SDRAM_SDTR3_XCS_MASK 0x00001F00 +#define SDRAM_SDTR3_XCS 0x00000D00 +#define SDRAM_SDTR3_RFC_MASK 0x0000003F +#define SDRAM_SDTR3_RFC_ENCODE(n) ((((u32)(n))&0x3F)<<0) + +/* + * ECC Error Status + */ +#define SDRAM_ECCES_MASK PPC_REG_VAL(21, 0x3FFFFF) +#define SDRAM_ECCES_BNCE_MASK PPC_REG_VAL(15, 0xFFFF) +#define SDRAM_ECCES_BNCE_ENCODE(lane) PPC_REG_VAL(((lane) & 0xF), 1) +#define SDRAM_ECCES_CKBER_MASK PPC_REG_VAL(17, 0x3) +#define SDRAM_ECCES_CKBER_NONE PPC_REG_VAL(17, 0) +#define SDRAM_ECCES_CKBER_16_ECC_0_3 PPC_REG_VAL(17, 2) +#define SDRAM_ECCES_CKBER_32_ECC_0_3 PPC_REG_VAL(17, 1) +#define SDRAM_ECCES_CKBER_32_ECC_4_8 PPC_REG_VAL(17, 2) +#define SDRAM_ECCES_CKBER_32_ECC_0_8 PPC_REG_VAL(17, 3) +#define SDRAM_ECCES_CE PPC_REG_VAL(18, 1) +#define SDRAM_ECCES_UE PPC_REG_VAL(19, 1) +#define SDRAM_ECCES_BKNER_MASK PPC_REG_VAL(21, 0x3) +#define SDRAM_ECCES_BK0ER PPC_REG_VAL(20, 1) +#define SDRAM_ECCES_BK1ER PPC_REG_VAL(21, 1) + +/* + * Memory Bank 0-1 configuration + */ +#define SDRAM_BXCF_M_AM_MASK 0x00000F00 /* Addressing mode */ +#define SDRAM_BXCF_M_AM_0 0x00000000 /* Mode 0 */ +#define SDRAM_BXCF_M_AM_1 0x00000100 /* Mode 1 */ +#define SDRAM_BXCF_M_AM_2 0x00000200 /* Mode 2 */ +#define SDRAM_BXCF_M_AM_3 0x00000300 /* Mode 3 */ +#define SDRAM_BXCF_M_AM_4 0x00000400 /* Mode 4 */ +#define SDRAM_BXCF_M_AM_5 0x00000500 /* Mode 5 */ +#define SDRAM_BXCF_M_AM_6 0x00000600 /* Mode 6 */ +#define SDRAM_BXCF_M_AM_7 0x00000700 /* Mode 7 */ +#define SDRAM_BXCF_M_AM_8 0x00000800 /* Mode 8 */ +#define SDRAM_BXCF_M_AM_9 0x00000900 /* Mode 9 */ +#define SDRAM_BXCF_M_BE_MASK 0x00000001 /* Memory Bank Enable */ +#define SDRAM_BXCF_M_BE_DISABLE 0x00000000 /* Memory Bank Enable */ +#define SDRAM_BXCF_M_BE_ENABLE 0x00000001 /* Memory Bank Enable */ + +#define SDRAM_RTSR_TRK1SM_MASK 0xC0000000 /* Tracking State Mach 1*/ +#define SDRAM_RTSR_TRK1SM_ATBASE 0x00000000 /* atbase state */ +#define SDRAM_RTSR_TRK1SM_MISSED 0x40000000 /* missed state */ +#define SDRAM_RTSR_TRK1SM_ATPLS1 0x80000000 /* atpls1 state */ +#define SDRAM_RTSR_TRK1SM_RESET 0xC0000000 /* reset state */ + +#define SDR0_MFR_FIXD 0x10000000 /* Workaround for PCI/DMA */ + +#endif /* CONFIG_SDRAM_PPC4xx_IBM_DDR2 */ + +#if defined(CONFIG_SDRAM_PPC4xx_DENALI_DDR2) +/* + * SDRAM Controller + */ +#define DDR0_00 0x00 +#define DDR0_00_INT_ACK_MASK 0x7F000000 /* Write only */ +#define DDR0_00_INT_ACK_ALL 0x7F000000 +#define DDR0_00_INT_ACK_ENCODE(n) ((((u32)(n))&0x7F)<<24) +#define DDR0_00_INT_ACK_DECODE(n) ((((u32)(n))>>24)&0x7F) +/* Status */ +#define DDR0_00_INT_STATUS_MASK 0x00FF0000 /* Read only */ +/* Bit0. A single access outside the defined PHYSICAL memory space detected. */ +#define DDR0_00_INT_STATUS_BIT0 0x00010000 +/* Bit1. Multiple accesses outside the defined PHYSICAL memory space detected. */ +#define DDR0_00_INT_STATUS_BIT1 0x00020000 +/* Bit2. Single correctable ECC event detected */ +#define DDR0_00_INT_STATUS_BIT2 0x00040000 +/* Bit3. Multiple correctable ECC events detected. */ +#define DDR0_00_INT_STATUS_BIT3 0x00080000 +/* Bit4. Single uncorrectable ECC event detected. */ +#define DDR0_00_INT_STATUS_BIT4 0x00100000 +/* Bit5. Multiple uncorrectable ECC events detected. */ +#define DDR0_00_INT_STATUS_BIT5 0x00200000 +/* Bit6. DRAM initialization complete. */ +#define DDR0_00_INT_STATUS_BIT6 0x00400000 +/* Bit7. Logical OR of all lower bits. */ +#define DDR0_00_INT_STATUS_BIT7 0x00800000 + +#define DDR0_00_INT_STATUS_ENCODE(n) ((((u32)(n))&0xFF)<<16) +#define DDR0_00_INT_STATUS_DECODE(n) ((((u32)(n))>>16)&0xFF) +#define DDR0_00_DLL_INCREMENT_MASK 0x00007F00 +#define DDR0_00_DLL_INCREMENT_ENCODE(n) ((((u32)(n))&0x7F)<<8) +#define DDR0_00_DLL_INCREMENT_DECODE(n) ((((u32)(n))>>8)&0x7F) +#define DDR0_00_DLL_START_POINT_MASK 0x0000007F +#define DDR0_00_DLL_START_POINT_ENCODE(n) ((((u32)(n))&0x7F)<<0) +#define DDR0_00_DLL_START_POINT_DECODE(n) ((((u32)(n))>>0)&0x7F) + +#define DDR0_01 0x01 +#define DDR0_01_PLB0_DB_CS_LOWER_MASK 0x1F000000 +#define DDR0_01_PLB0_DB_CS_LOWER_ENCODE(n) ((((u32)(n))&0x1F)<<24) +#define DDR0_01_PLB0_DB_CS_LOWER_DECODE(n) ((((u32)(n))>>24)&0x1F) +#define DDR0_01_PLB0_DB_CS_UPPER_MASK 0x001F0000 +#define DDR0_01_PLB0_DB_CS_UPPER_ENCODE(n) ((((u32)(n))&0x1F)<<16) +#define DDR0_01_PLB0_DB_CS_UPPER_DECODE(n) ((((u32)(n))>>16)&0x1F) +#define DDR0_01_OUT_OF_RANGE_TYPE_MASK 0x00000700 /* Read only */ +#define DDR0_01_OUT_OF_RANGE_TYPE_ENCODE(n) ((((u32)(n))&0x7)<<8) +#define DDR0_01_OUT_OF_RANGE_TYPE_DECODE(n) ((((u32)(n))>>8)&0x7) +#define DDR0_01_INT_MASK_MASK 0x000000FF +#define DDR0_01_INT_MASK_ENCODE(n) ((((u32)(n))&0xFF)<<0) +#define DDR0_01_INT_MASK_DECODE(n) ((((u32)(n))>>0)&0xFF) +#define DDR0_01_INT_MASK_ALL_ON 0x000000FF +#define DDR0_01_INT_MASK_ALL_OFF 0x00000000 + +#define DDR0_02 0x02 +#define DDR0_02_MAX_CS_REG_MASK 0x02000000 /* Read only */ +#define DDR0_02_MAX_CS_REG_ENCODE(n) ((((u32)(n))&0x2)<<24) +#define DDR0_02_MAX_CS_REG_DECODE(n) ((((u32)(n))>>24)&0x2) +#define DDR0_02_MAX_COL_REG_MASK 0x000F0000 /* Read only */ +#define DDR0_02_MAX_COL_REG_ENCODE(n) ((((u32)(n))&0xF)<<16) +#define DDR0_02_MAX_COL_REG_DECODE(n) ((((u32)(n))>>16)&0xF) +#define DDR0_02_MAX_ROW_REG_MASK 0x00000F00 /* Read only */ +#define DDR0_02_MAX_ROW_REG_ENCODE(n) ((((u32)(n))&0xF)<<8) +#define DDR0_02_MAX_ROW_REG_DECODE(n) ((((u32)(n))>>8)&0xF) +#define DDR0_02_START_MASK 0x00000001 +#define DDR0_02_START_ENCODE(n) ((((u32)(n))&0x1)<<0) +#define DDR0_02_START_DECODE(n) ((((u32)(n))>>0)&0x1) +#define DDR0_02_START_OFF 0x00000000 +#define DDR0_02_START_ON 0x00000001 + +#define DDR0_03 0x03 +#define DDR0_03_BSTLEN_MASK 0x07000000 +#define DDR0_03_BSTLEN_ENCODE(n) ((((u32)(n))&0x7)<<24) +#define DDR0_03_BSTLEN_DECODE(n) ((((u32)(n))>>24)&0x7) +#define DDR0_03_CASLAT_MASK 0x00070000 +#define DDR0_03_CASLAT_ENCODE(n) ((((u32)(n))&0x7)<<16) +#define DDR0_03_CASLAT_DECODE(n) ((((u32)(n))>>16)&0x7) +#define DDR0_03_CASLAT_LIN_MASK 0x00000F00 +#define DDR0_03_CASLAT_LIN_ENCODE(n) ((((u32)(n))&0xF)<<8) +#define DDR0_03_CASLAT_LIN_DECODE(n) ((((u32)(n))>>8)&0xF) +#define DDR0_03_INITAREF_MASK 0x0000000F +#define DDR0_03_INITAREF_ENCODE(n) ((((u32)(n))&0xF)<<0) +#define DDR0_03_INITAREF_DECODE(n) ((((u32)(n))>>0)&0xF) + +#define DDR0_04 0x04 +#define DDR0_04_TRC_MASK 0x1F000000 +#define DDR0_04_TRC_ENCODE(n) ((((u32)(n))&0x1F)<<24) +#define DDR0_04_TRC_DECODE(n) ((((u32)(n))>>24)&0x1F) +#define DDR0_04_TRRD_MASK 0x00070000 +#define DDR0_04_TRRD_ENCODE(n) ((((u32)(n))&0x7)<<16) +#define DDR0_04_TRRD_DECODE(n) ((((u32)(n))>>16)&0x7) +#define DDR0_04_TRTP_MASK 0x00000700 +#define DDR0_04_TRTP_ENCODE(n) ((((u32)(n))&0x7)<<8) +#define DDR0_04_TRTP_DECODE(n) ((((u32)(n))>>8)&0x7) + +#define DDR0_05 0x05 +#define DDR0_05_TMRD_MASK 0x1F000000 +#define DDR0_05_TMRD_ENCODE(n) ((((u32)(n))&0x1F)<<24) +#define DDR0_05_TMRD_DECODE(n) ((((u32)(n))>>24)&0x1F) +#define DDR0_05_TEMRS_MASK 0x00070000 +#define DDR0_05_TEMRS_ENCODE(n) ((((u32)(n))&0x7)<<16) +#define DDR0_05_TEMRS_DECODE(n) ((((u32)(n))>>16)&0x7) +#define DDR0_05_TRP_MASK 0x00000F00 +#define DDR0_05_TRP_ENCODE(n) ((((u32)(n))&0xF)<<8) +#define DDR0_05_TRP_DECODE(n) ((((u32)(n))>>8)&0xF) +#define DDR0_05_TRAS_MIN_MASK 0x000000FF +#define DDR0_05_TRAS_MIN_ENCODE(n) ((((u32)(n))&0xFF)<<0) +#define DDR0_05_TRAS_MIN_DECODE(n) ((((u32)(n))>>0)&0xFF) + +#define DDR0_06 0x06 +#define DDR0_06_WRITEINTERP_MASK 0x01000000 +#define DDR0_06_WRITEINTERP_ENCODE(n) ((((u32)(n))&0x1)<<24) +#define DDR0_06_WRITEINTERP_DECODE(n) ((((u32)(n))>>24)&0x1) +#define DDR0_06_TWTR_MASK 0x00070000 +#define DDR0_06_TWTR_ENCODE(n) ((((u32)(n))&0x7)<<16) +#define DDR0_06_TWTR_DECODE(n) ((((u32)(n))>>16)&0x7) +#define DDR0_06_TDLL_MASK 0x0000FF00 +#define DDR0_06_TDLL_ENCODE(n) ((((u32)(n))&0xFF)<<8) +#define DDR0_06_TDLL_DECODE(n) ((((u32)(n))>>8)&0xFF) +#define DDR0_06_TRFC_MASK 0x0000007F +#define DDR0_06_TRFC_ENCODE(n) ((((u32)(n))&0x7F)<<0) +#define DDR0_06_TRFC_DECODE(n) ((((u32)(n))>>0)&0x7F) + +#define DDR0_07 0x07 +#define DDR0_07_NO_CMD_INIT_MASK 0x01000000 +#define DDR0_07_NO_CMD_INIT_ENCODE(n) ((((u32)(n))&0x1)<<24) +#define DDR0_07_NO_CMD_INIT_DECODE(n) ((((u32)(n))>>24)&0x1) +#define DDR0_07_TFAW_MASK 0x001F0000 +#define DDR0_07_TFAW_ENCODE(n) ((((u32)(n))&0x1F)<<16) +#define DDR0_07_TFAW_DECODE(n) ((((u32)(n))>>16)&0x1F) +#define DDR0_07_AUTO_REFRESH_MODE_MASK 0x00000100 +#define DDR0_07_AUTO_REFRESH_MODE_ENCODE(n) ((((u32)(n))&0x1)<<8) +#define DDR0_07_AUTO_REFRESH_MODE_DECODE(n) ((((u32)(n))>>8)&0x1) +#define DDR0_07_AREFRESH_MASK 0x00000001 +#define DDR0_07_AREFRESH_ENCODE(n) ((((u32)(n))&0x1)<<0) +#define DDR0_07_AREFRESH_DECODE(n) ((((u32)(n))>>0)&0x1) + +#define DDR0_08 0x08 +#define DDR0_08_WRLAT_MASK 0x07000000 +#define DDR0_08_WRLAT_ENCODE(n) ((((u32)(n))&0x7)<<24) +#define DDR0_08_WRLAT_DECODE(n) ((((u32)(n))>>24)&0x7) +#define DDR0_08_TCPD_MASK 0x00FF0000 +#define DDR0_08_TCPD_ENCODE(n) ((((u32)(n))&0xFF)<<16) +#define DDR0_08_TCPD_DECODE(n) ((((u32)(n))>>16)&0xFF) +#define DDR0_08_DQS_N_EN_MASK 0x00000100 +#define DDR0_08_DQS_N_EN_ENCODE(n) ((((u32)(n))&0x1)<<8) +#define DDR0_08_DQS_N_EN_DECODE(n) ((((u32)(n))>>8)&0x1) +#define DDR0_08_DDRII_SDRAM_MODE_MASK 0x00000001 +#define DDR0_08_DDRII_ENCODE(n) ((((u32)(n))&0x1)<<0) +#define DDR0_08_DDRII_DECODE(n) ((((u32)(n))>>0)&0x1) + +#define DDR0_09 0x09 +#define DDR0_09_OCD_ADJUST_PDN_CS_0_MASK 0x1F000000 +#define DDR0_09_OCD_ADJUST_PDN_CS_0_ENCODE(n) ((((u32)(n))&0x1F)<<24) +#define DDR0_09_OCD_ADJUST_PDN_CS_0_DECODE(n) ((((u32)(n))>>24)&0x1F) +#define DDR0_09_RTT_0_MASK 0x00030000 +#define DDR0_09_RTT_0_ENCODE(n) ((((u32)(n))&0x3)<<16) +#define DDR0_09_RTT_0_DECODE(n) ((((u32)(n))>>16)&0x3) +#define DDR0_09_WR_DQS_SHIFT_BYPASS_MASK 0x00007F00 +#define DDR0_09_WR_DQS_SHIFT_BYPASS_ENCODE(n) ((((u32)(n))&0x7F)<<8) +#define DDR0_09_WR_DQS_SHIFT_BYPASS_DECODE(n) ((((u32)(n))>>8)&0x7F) +#define DDR0_09_WR_DQS_SHIFT_MASK 0x0000007F +#define DDR0_09_WR_DQS_SHIFT_ENCODE(n) ((((u32)(n))&0x7F)<<0) +#define DDR0_09_WR_DQS_SHIFT_DECODE(n) ((((u32)(n))>>0)&0x7F) + +#define DDR0_10 0x0A +#define DDR0_10_WRITE_MODEREG_MASK 0x00010000 /* Write only */ +#define DDR0_10_WRITE_MODEREG_ENCODE(n) ((((u32)(n))&0x1)<<16) +#define DDR0_10_WRITE_MODEREG_DECODE(n) ((((u32)(n))>>16)&0x1) +#define DDR0_10_CS_MAP_MASK 0x00000300 +#define DDR0_10_CS_MAP_NO_MEM 0x00000000 +#define DDR0_10_CS_MAP_RANK0_INSTALLED 0x00000100 +#define DDR0_10_CS_MAP_RANK1_INSTALLED 0x00000200 +#define DDR0_10_CS_MAP_ENCODE(n) ((((u32)(n))&0x3)<<8) +#define DDR0_10_CS_MAP_DECODE(n) ((((u32)(n))>>8)&0x3) +#define DDR0_10_OCD_ADJUST_PUP_CS_0_MASK 0x0000001F +#define DDR0_10_OCD_ADJUST_PUP_CS_0_ENCODE(n) ((((u32)(n))&0x1F)<<0) +#define DDR0_10_OCD_ADJUST_PUP_CS_0_DECODE(n) ((((u32)(n))>>0)&0x1F) + +#define DDR0_11 0x0B +#define DDR0_11_SREFRESH_MASK 0x01000000 +#define DDR0_11_SREFRESH_ENCODE(n) ((((u32)(n))&0x1)<<24) +#define DDR0_11_SREFRESH_DECODE(n) ((((u32)(n))>>24)&0x1F) +#define DDR0_11_TXSNR_MASK 0x00FF0000 +#define DDR0_11_TXSNR_ENCODE(n) ((((u32)(n))&0xFF)<<16) +#define DDR0_11_TXSNR_DECODE(n) ((((u32)(n))>>16)&0xFF) +#define DDR0_11_TXSR_MASK 0x0000FF00 +#define DDR0_11_TXSR_ENCODE(n) ((((u32)(n))&0xFF)<<8) +#define DDR0_11_TXSR_DECODE(n) ((((u32)(n))>>8)&0xFF) + +#define DDR0_12 0x0C +#define DDR0_12_TCKE_MASK 0x0000007 +#define DDR0_12_TCKE_ENCODE(n) ((((u32)(n))&0x7)<<0) +#define DDR0_12_TCKE_DECODE(n) ((((u32)(n))>>0)&0x7) + +#define DDR0_14 0x0E +#define DDR0_14_DLL_BYPASS_MODE_MASK 0x01000000 +#define DDR0_14_DLL_BYPASS_MODE_ENCODE(n) ((((u32)(n))&0x1)<<24) +#define DDR0_14_DLL_BYPASS_MODE_DECODE(n) ((((u32)(n))>>24)&0x1) +#define DDR0_14_REDUC_MASK 0x00010000 +#define DDR0_14_REDUC_64BITS 0x00000000 +#define DDR0_14_REDUC_32BITS 0x00010000 +#define DDR0_14_REDUC_ENCODE(n) ((((u32)(n))&0x1)<<16) +#define DDR0_14_REDUC_DECODE(n) ((((u32)(n))>>16)&0x1) +#define DDR0_14_REG_DIMM_ENABLE_MASK 0x00000100 +#define DDR0_14_REG_DIMM_ENABLE_ENCODE(n) ((((u32)(n))&0x1)<<8) +#define DDR0_14_REG_DIMM_ENABLE_DECODE(n) ((((u32)(n))>>8)&0x1) + +#define DDR0_17 0x11 +#define DDR0_17_DLL_DQS_DELAY_0_MASK 0x7F000000 +#define DDR0_17_DLL_DQS_DELAY_0_ENCODE(n) ((((u32)(n))&0x7F)<<24) +#define DDR0_17_DLL_DQS_DELAY_0_DECODE(n) ((((u32)(n))>>24)&0x7F) +#define DDR0_17_DLLLOCKREG_MASK 0x00010000 /* Read only */ +#define DDR0_17_DLLLOCKREG_LOCKED 0x00010000 +#define DDR0_17_DLLLOCKREG_UNLOCKED 0x00000000 +#define DDR0_17_DLLLOCKREG_ENCODE(n) ((((u32)(n))&0x1)<<16) +#define DDR0_17_DLLLOCKREG_DECODE(n) ((((u32)(n))>>16)&0x1) +#define DDR0_17_DLL_LOCK_MASK 0x00007F00 /* Read only */ +#define DDR0_17_DLL_LOCK_ENCODE(n) ((((u32)(n))&0x7F)<<8) +#define DDR0_17_DLL_LOCK_DECODE(n) ((((u32)(n))>>8)&0x7F) + +#define DDR0_18 0x12 +#define DDR0_18_DLL_DQS_DELAY_X_MASK 0x7F7F7F7F +#define DDR0_18_DLL_DQS_DELAY_4_MASK 0x7F000000 +#define DDR0_18_DLL_DQS_DELAY_4_ENCODE(n) ((((u32)(n))&0x7F)<<24) +#define DDR0_18_DLL_DQS_DELAY_4_DECODE(n) ((((u32)(n))>>24)&0x7F) +#define DDR0_18_DLL_DQS_DELAY_3_MASK 0x007F0000 +#define DDR0_18_DLL_DQS_DELAY_3_ENCODE(n) ((((u32)(n))&0x7F)<<16) +#define DDR0_18_DLL_DQS_DELAY_3_DECODE(n) ((((u32)(n))>>16)&0x7F) +#define DDR0_18_DLL_DQS_DELAY_2_MASK 0x00007F00 +#define DDR0_18_DLL_DQS_DELAY_2_ENCODE(n) ((((u32)(n))&0x7F)<<8) +#define DDR0_18_DLL_DQS_DELAY_2_DECODE(n) ((((u32)(n))>>8)&0x7F) +#define DDR0_18_DLL_DQS_DELAY_1_MASK 0x0000007F +#define DDR0_18_DLL_DQS_DELAY_1_ENCODE(n) ((((u32)(n))&0x7F)<<0) +#define DDR0_18_DLL_DQS_DELAY_1_DECODE(n) ((((u32)(n))>>0)&0x7F) + +#define DDR0_19 0x13 +#define DDR0_19_DLL_DQS_DELAY_X_MASK 0x7F7F7F7F +#define DDR0_19_DLL_DQS_DELAY_8_MASK 0x7F000000 +#define DDR0_19_DLL_DQS_DELAY_8_ENCODE(n) ((((u32)(n))&0x7F)<<24) +#define DDR0_19_DLL_DQS_DELAY_8_DECODE(n) ((((u32)(n))>>24)&0x7F) +#define DDR0_19_DLL_DQS_DELAY_7_MASK 0x007F0000 +#define DDR0_19_DLL_DQS_DELAY_7_ENCODE(n) ((((u32)(n))&0x7F)<<16) +#define DDR0_19_DLL_DQS_DELAY_7_DECODE(n) ((((u32)(n))>>16)&0x7F) +#define DDR0_19_DLL_DQS_DELAY_6_MASK 0x00007F00 +#define DDR0_19_DLL_DQS_DELAY_6_ENCODE(n) ((((u32)(n))&0x7F)<<8) +#define DDR0_19_DLL_DQS_DELAY_6_DECODE(n) ((((u32)(n))>>8)&0x7F) +#define DDR0_19_DLL_DQS_DELAY_5_MASK 0x0000007F +#define DDR0_19_DLL_DQS_DELAY_5_ENCODE(n) ((((u32)(n))&0x7F)<<0) +#define DDR0_19_DLL_DQS_DELAY_5_DECODE(n) ((((u32)(n))>>0)&0x7F) + +#define DDR0_20 0x14 +#define DDR0_20_DLL_DQS_BYPASS_3_MASK 0x7F000000 +#define DDR0_20_DLL_DQS_BYPASS_3_ENCODE(n) ((((u32)(n))&0x7F)<<24) +#define DDR0_20_DLL_DQS_BYPASS_3_DECODE(n) ((((u32)(n))>>24)&0x7F) +#define DDR0_20_DLL_DQS_BYPASS_2_MASK 0x007F0000 +#define DDR0_20_DLL_DQS_BYPASS_2_ENCODE(n) ((((u32)(n))&0x7F)<<16) +#define DDR0_20_DLL_DQS_BYPASS_2_DECODE(n) ((((u32)(n))>>16)&0x7F) +#define DDR0_20_DLL_DQS_BYPASS_1_MASK 0x00007F00 +#define DDR0_20_DLL_DQS_BYPASS_1_ENCODE(n) ((((u32)(n))&0x7F)<<8) +#define DDR0_20_DLL_DQS_BYPASS_1_DECODE(n) ((((u32)(n))>>8)&0x7F) +#define DDR0_20_DLL_DQS_BYPASS_0_MASK 0x0000007F +#define DDR0_20_DLL_DQS_BYPASS_0_ENCODE(n) ((((u32)(n))&0x7F)<<0) +#define DDR0_20_DLL_DQS_BYPASS_0_DECODE(n) ((((u32)(n))>>0)&0x7F) + +#define DDR0_21 0x15 +#define DDR0_21_DLL_DQS_BYPASS_7_MASK 0x7F000000 +#define DDR0_21_DLL_DQS_BYPASS_7_ENCODE(n) ((((u32)(n))&0x7F)<<24) +#define DDR0_21_DLL_DQS_BYPASS_7_DECODE(n) ((((u32)(n))>>24)&0x7F) +#define DDR0_21_DLL_DQS_BYPASS_6_MASK 0x007F0000 +#define DDR0_21_DLL_DQS_BYPASS_6_ENCODE(n) ((((u32)(n))&0x7F)<<16) +#define DDR0_21_DLL_DQS_BYPASS_6_DECODE(n) ((((u32)(n))>>16)&0x7F) +#define DDR0_21_DLL_DQS_BYPASS_5_MASK 0x00007F00 +#define DDR0_21_DLL_DQS_BYPASS_5_ENCODE(n) ((((u32)(n))&0x7F)<<8) +#define DDR0_21_DLL_DQS_BYPASS_5_DECODE(n) ((((u32)(n))>>8)&0x7F) +#define DDR0_21_DLL_DQS_BYPASS_4_MASK 0x0000007F +#define DDR0_21_DLL_DQS_BYPASS_4_ENCODE(n) ((((u32)(n))&0x7F)<<0) +#define DDR0_21_DLL_DQS_BYPASS_4_DECODE(n) ((((u32)(n))>>0)&0x7F) + +#define DDR0_22 0x16 +#define DDR0_22_CTRL_RAW_MASK 0x03000000 +#define DDR0_22_CTRL_RAW_ECC_DISABLE 0x00000000 +#define DDR0_22_CTRL_RAW_ECC_CHECK_ONLY 0x01000000 +#define DDR0_22_CTRL_RAW_NO_ECC_RAM 0x02000000 +#define DDR0_22_CTRL_RAW_ECC_ENABLE 0x03000000 +#define DDR0_22_CTRL_RAW_ENCODE(n) ((((u32)(n))&0x3)<<24) +#define DDR0_22_CTRL_RAW_DECODE(n) ((((u32)(n))>>24)&0x3) +#define DDR0_22_DQS_OUT_SHIFT_BYPASS_MASK 0x007F0000 +#define DDR0_22_DQS_OUT_SHIFT_BYPASS_ENCODE(n) ((((u32)(n))&0x7F)<<16) +#define DDR0_22_DQS_OUT_SHIFT_BYPASS_DECODE(n) ((((u32)(n))>>16)&0x7F) +#define DDR0_22_DQS_OUT_SHIFT_MASK 0x00007F00 +#define DDR0_22_DQS_OUT_SHIFT_ENCODE(n) ((((u32)(n))&0x7F)<<8) +#define DDR0_22_DQS_OUT_SHIFT_DECODE(n) ((((u32)(n))>>8)&0x7F) +#define DDR0_22_DLL_DQS_BYPASS_8_MASK 0x0000007F +#define DDR0_22_DLL_DQS_BYPASS_8_ENCODE(n) ((((u32)(n))&0x7F)<<0) +#define DDR0_22_DLL_DQS_BYPASS_8_DECODE(n) ((((u32)(n))>>0)&0x7F) + +#define DDR0_23 0x17 +#define DDR0_23_ODT_RD_MAP_CS0_MASK 0x03000000 +#define DDR0_23_ODT_RD_MAP_CS0_ENCODE(n) ((((u32)(n))&0x3)<<24) +#define DDR0_23_ODT_RD_MAP_CS0_DECODE(n) ((((u32)(n))>>24)&0x3) +#define DDR0_23_ECC_C_SYND_MASK 0x00FF0000 /* Read only */ +#define DDR0_23_ECC_C_SYND_ENCODE(n) ((((u32)(n))&0xFF)<<16) +#define DDR0_23_ECC_C_SYND_DECODE(n) ((((u32)(n))>>16)&0xFF) +#define DDR0_23_ECC_U_SYND_MASK 0x0000FF00 /* Read only */ +#define DDR0_23_ECC_U_SYND_ENCODE(n) ((((u32)(n))&0xFF)<<8) +#define DDR0_23_ECC_U_SYND_DECODE(n) ((((u32)(n))>>8)&0xFF) +#define DDR0_23_FWC_MASK 0x00000001 /* Write only */ +#define DDR0_23_FWC_ENCODE(n) ((((u32)(n))&0x1)<<0) +#define DDR0_23_FWC_DECODE(n) ((((u32)(n))>>0)&0x1) + +#define DDR0_24 0x18 +#define DDR0_24_RTT_PAD_TERMINATION_MASK 0x03000000 +#define DDR0_24_RTT_PAD_TERMINATION_ENCODE(n) ((((u32)(n))&0x3)<<24) +#define DDR0_24_RTT_PAD_TERMINATION_DECODE(n) ((((u32)(n))>>24)&0x3) +#define DDR0_24_ODT_WR_MAP_CS1_MASK 0x00030000 +#define DDR0_24_ODT_WR_MAP_CS1_ENCODE(n) ((((u32)(n))&0x3)<<16) +#define DDR0_24_ODT_WR_MAP_CS1_DECODE(n) ((((u32)(n))>>16)&0x3) +#define DDR0_24_ODT_RD_MAP_CS1_MASK 0x00000300 +#define DDR0_24_ODT_RD_MAP_CS1_ENCODE(n) ((((u32)(n))&0x3)<<8) +#define DDR0_24_ODT_RD_MAP_CS1_DECODE(n) ((((u32)(n))>>8)&0x3) +#define DDR0_24_ODT_WR_MAP_CS0_MASK 0x00000003 +#define DDR0_24_ODT_WR_MAP_CS0_ENCODE(n) ((((u32)(n))&0x3)<<0) +#define DDR0_24_ODT_WR_MAP_CS0_DECODE(n) ((((u32)(n))>>0)&0x3) + +#define DDR0_25 0x19 +#define DDR0_25_VERSION_MASK 0xFFFF0000 /* Read only */ +#define DDR0_25_VERSION_ENCODE(n) ((((u32)(n))&0xFFFF)<<16) +#define DDR0_25_VERSION_DECODE(n) ((((u32)(n))>>16)&0xFFFF) +#define DDR0_25_OUT_OF_RANGE_LENGTH_MASK 0x000003FF /* Read only */ +#define DDR0_25_OUT_OF_RANGE_LENGTH_ENCODE(n) ((((u32)(n))&0x3FF)<<0) +#define DDR0_25_OUT_OF_RANGE_LENGTH_DECODE(n) ((((u32)(n))>>0)&0x3FF) + +#define DDR0_26 0x1A +#define DDR0_26_TRAS_MAX_MASK 0xFFFF0000 +#define DDR0_26_TRAS_MAX_ENCODE(n) ((((u32)(n))&0xFFFF)<<16) +#define DDR0_26_TRAS_MAX_DECODE(n) ((((u32)(n))>>16)&0xFFFF) +#define DDR0_26_TREF_MASK 0x00003FFF +#define DDR0_26_TREF_ENCODE(n) ((((u32)(n))&0x3FFF)<<0) +#define DDR0_26_TREF_DECODE(n) ((((u32)(n))>>0)&0x3FFF) + +#define DDR0_27 0x1B +#define DDR0_27_EMRS_DATA_MASK 0x3FFF0000 +#define DDR0_27_EMRS_DATA_ENCODE(n) ((((u32)(n))&0x3FFF)<<16) +#define DDR0_27_EMRS_DATA_DECODE(n) ((((u32)(n))>>16)&0x3FFF) +#define DDR0_27_TINIT_MASK 0x0000FFFF +#define DDR0_27_TINIT_ENCODE(n) ((((u32)(n))&0xFFFF)<<0) +#define DDR0_27_TINIT_DECODE(n) ((((u32)(n))>>0)&0xFFFF) + +#define DDR0_28 0x1C +#define DDR0_28_EMRS3_DATA_MASK 0x3FFF0000 +#define DDR0_28_EMRS3_DATA_ENCODE(n) ((((u32)(n))&0x3FFF)<<16) +#define DDR0_28_EMRS3_DATA_DECODE(n) ((((u32)(n))>>16)&0x3FFF) +#define DDR0_28_EMRS2_DATA_MASK 0x00003FFF +#define DDR0_28_EMRS2_DATA_ENCODE(n) ((((u32)(n))&0x3FFF)<<0) +#define DDR0_28_EMRS2_DATA_DECODE(n) ((((u32)(n))>>0)&0x3FFF) + +#define DDR0_31 0x1F +#define DDR0_31_XOR_CHECK_BITS_MASK 0x0000FFFF +#define DDR0_31_XOR_CHECK_BITS_ENCODE(n) ((((u32)(n))&0xFFFF)<<0) +#define DDR0_31_XOR_CHECK_BITS_DECODE(n) ((((u32)(n))>>0)&0xFFFF) + +#define DDR0_32 0x20 +#define DDR0_32_OUT_OF_RANGE_ADDR_MASK 0xFFFFFFFF /* Read only */ +#define DDR0_32_OUT_OF_RANGE_ADDR_ENCODE(n) ((((u32)(n))&0xFFFFFFFF)<<0) +#define DDR0_32_OUT_OF_RANGE_ADDR_DECODE(n) ((((u32)(n))>>0)&0xFFFFFFFF) + +#define DDR0_33 0x21 +#define DDR0_33_OUT_OF_RANGE_ADDR_MASK 0x00000001 /* Read only */ +#define DDR0_33_OUT_OF_RANGE_ADDR_ENCODE(n) ((((u32)(n))&0x1)<<0) +#define DDR0_33_OUT_OF_RANGE_ADDR_DECODE(n) ((((u32)(n))>>0)&0x1) + +#define DDR0_34 0x22 +#define DDR0_34_ECC_U_ADDR_MASK 0xFFFFFFFF /* Read only */ +#define DDR0_34_ECC_U_ADDR_ENCODE(n) ((((u32)(n))&0xFFFFFFFF)<<0) +#define DDR0_34_ECC_U_ADDR_DECODE(n) ((((u32)(n))>>0)&0xFFFFFFFF) + +#define DDR0_35 0x23 +#define DDR0_35_ECC_U_ADDR_MASK 0x00000001 /* Read only */ +#define DDR0_35_ECC_U_ADDR_ENCODE(n) ((((u32)(n))&0x1)<<0) +#define DDR0_35_ECC_U_ADDR_DECODE(n) ((((u32)(n))>>0)&0x1) + +#define DDR0_36 0x24 +#define DDR0_36_ECC_U_DATA_MASK 0xFFFFFFFF /* Read only */ +#define DDR0_36_ECC_U_DATA_ENCODE(n) ((((u32)(n))&0xFFFFFFFF)<<0) +#define DDR0_36_ECC_U_DATA_DECODE(n) ((((u32)(n))>>0)&0xFFFFFFFF) + +#define DDR0_37 0x25 +#define DDR0_37_ECC_U_DATA_MASK 0xFFFFFFFF /* Read only */ +#define DDR0_37_ECC_U_DATA_ENCODE(n) ((((u32)(n))&0xFFFFFFFF)<<0) +#define DDR0_37_ECC_U_DATA_DECODE(n) ((((u32)(n))>>0)&0xFFFFFFFF) + +#define DDR0_38 0x26 +#define DDR0_38_ECC_C_ADDR_MASK 0xFFFFFFFF /* Read only */ +#define DDR0_38_ECC_C_ADDR_ENCODE(n) ((((u32)(n))&0xFFFFFFFF)<<0) +#define DDR0_38_ECC_C_ADDR_DECODE(n) ((((u32)(n))>>0)&0xFFFFFFFF) + +#define DDR0_39 0x27 +#define DDR0_39_ECC_C_ADDR_MASK 0x00000001 /* Read only */ +#define DDR0_39_ECC_C_ADDR_ENCODE(n) ((((u32)(n))&0x1)<<0) +#define DDR0_39_ECC_C_ADDR_DECODE(n) ((((u32)(n))>>0)&0x1) + +#define DDR0_40 0x28 +#define DDR0_40_ECC_C_DATA_MASK 0xFFFFFFFF /* Read only */ +#define DDR0_40_ECC_C_DATA_ENCODE(n) ((((u32)(n))&0xFFFFFFFF)<<0) +#define DDR0_40_ECC_C_DATA_DECODE(n) ((((u32)(n))>>0)&0xFFFFFFFF) + +#define DDR0_41 0x29 +#define DDR0_41_ECC_C_DATA_MASK 0xFFFFFFFF /* Read only */ +#define DDR0_41_ECC_C_DATA_ENCODE(n) ((((u32)(n))&0xFFFFFFFF)<<0) +#define DDR0_41_ECC_C_DATA_DECODE(n) ((((u32)(n))>>0)&0xFFFFFFFF) + +#define DDR0_42 0x2A +#define DDR0_42_ADDR_PINS_MASK 0x07000000 +#define DDR0_42_ADDR_PINS_ENCODE(n) ((((u32)(n))&0x7)<<24) +#define DDR0_42_ADDR_PINS_DECODE(n) ((((u32)(n))>>24)&0x7) +#define DDR0_42_CASLAT_LIN_GATE_MASK 0x0000000F +#define DDR0_42_CASLAT_LIN_GATE_ENCODE(n) ((((u32)(n))&0xF)<<0) +#define DDR0_42_CASLAT_LIN_GATE_DECODE(n) ((((u32)(n))>>0)&0xF) + +#define DDR0_43 0x2B +#define DDR0_43_TWR_MASK 0x07000000 +#define DDR0_43_TWR_ENCODE(n) ((((u32)(n))&0x7)<<24) +#define DDR0_43_TWR_DECODE(n) ((((u32)(n))>>24)&0x7) +#define DDR0_43_APREBIT_MASK 0x000F0000 +#define DDR0_43_APREBIT_ENCODE(n) ((((u32)(n))&0xF)<<16) +#define DDR0_43_APREBIT_DECODE(n) ((((u32)(n))>>16)&0xF) +#define DDR0_43_COLUMN_SIZE_MASK 0x00000700 +#define DDR0_43_COLUMN_SIZE_ENCODE(n) ((((u32)(n))&0x7)<<8) +#define DDR0_43_COLUMN_SIZE_DECODE(n) ((((u32)(n))>>8)&0x7) +#define DDR0_43_EIGHT_BANK_MODE_MASK 0x00000001 +#define DDR0_43_EIGHT_BANK_MODE_8_BANKS 0x00000001 +#define DDR0_43_EIGHT_BANK_MODE_4_BANKS 0x00000000 +#define DDR0_43_EIGHT_BANK_MODE_ENCODE(n) ((((u32)(n))&0x1)<<0) +#define DDR0_43_EIGHT_BANK_MODE_DECODE(n) ((((u32)(n))>>0)&0x1) + +#define DDR0_44 0x2C +#define DDR0_44_TRCD_MASK 0x000000FF +#define DDR0_44_TRCD_ENCODE(n) ((((u32)(n))&0xFF)<<0) +#define DDR0_44_TRCD_DECODE(n) ((((u32)(n))>>0)&0xFF) + +#endif /* CONFIG_SDRAM_PPC4xx_DENALI_DDR2 */ + +#ifndef __ASSEMBLY__ +/* + * Prototypes + */ +inline void ppc4xx_ibm_ddr2_register_dump(void); +u32 mfdcr_any(u32); +void mtdcr_any(u32, u32); +u32 ddr_wrdtr(u32); +u32 ddr_clktr(u32); +void spd_ddr_init_hang(void); +u32 DQS_autocalibration(void); +phys_size_t sdram_memsize(void); +void dcbz_area(u32 start_address, u32 num_bytes); +#endif /* __ASSEMBLY__ */ + +#endif /* _PPC4xx_SDRAM_H_ */ diff --git a/arch/ppc/include/asm/ppc4xx-uic.h b/arch/ppc/include/asm/ppc4xx-uic.h new file mode 100644 index 0000000..782d045 --- /dev/null +++ b/arch/ppc/include/asm/ppc4xx-uic.h @@ -0,0 +1,304 @@ +/* + * Copyright (C) 2002 Scott McNutt <smcnutt@artesyncp.com> + * + * (C) Copyright 2008-2009 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _PPC4xx_UIC_H_ +#define _PPC4xx_UIC_H_ + +/* + * Define the number of UIC's + */ +#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ + defined(CONFIG_460SX) +#define UIC_MAX 4 +#elif defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ + defined(CONFIG_405EX) +#define UIC_MAX 3 +#elif defined(CONFIG_440GP) || defined(CONFIG_440SP) || \ + defined(CONFIG_440EP) || defined(CONFIG_440GR) +#define UIC_MAX 2 +#else +#define UIC_MAX 1 +#endif + +#define IRQ_MAX (UIC_MAX * 32) + +/* + * UIC register + */ +#define UIC_SR 0x0 /* UIC status */ +#define UIC_ER 0x2 /* UIC enable */ +#define UIC_CR 0x3 /* UIC critical */ +#define UIC_PR 0x4 /* UIC polarity */ +#define UIC_TR 0x5 /* UIC triggering */ +#define UIC_MSR 0x6 /* UIC masked status */ +#define UIC_VR 0x7 /* UIC vector */ +#define UIC_VCR 0x8 /* UIC vector configuration */ + +/* + * On 440GX we use the UICB0 as UIC0. Its the root UIC where all other UIC's + * are cascaded on. With this trick we can use the common UIC code for 440GX + * too. + */ +#if defined(CONFIG_440GX) +#define UIC0_DCR_BASE 0x200 +#define UIC1_DCR_BASE 0xc0 +#define UIC2_DCR_BASE 0xd0 +#define UIC3_DCR_BASE 0x210 +#else +#define UIC0_DCR_BASE 0xc0 +#define UIC1_DCR_BASE 0xd0 +#define UIC2_DCR_BASE 0xe0 +#define UIC3_DCR_BASE 0xf0 +#endif + +#define UIC0SR (UIC0_DCR_BASE+0x0) /* UIC0 status */ +#define UIC0ER (UIC0_DCR_BASE+0x2) /* UIC0 enable */ +#define UIC0CR (UIC0_DCR_BASE+0x3) /* UIC0 critical */ +#define UIC0PR (UIC0_DCR_BASE+0x4) /* UIC0 polarity */ +#define UIC0TR (UIC0_DCR_BASE+0x5) /* UIC0 triggering */ +#define UIC0MSR (UIC0_DCR_BASE+0x6) /* UIC0 masked status */ +#define UIC0VR (UIC0_DCR_BASE+0x7) /* UIC0 vector */ +#define UIC0VCR (UIC0_DCR_BASE+0x8) /* UIC0 vector configuration */ + +#define UIC1SR (UIC1_DCR_BASE+0x0) /* UIC1 status */ +#define UIC1ER (UIC1_DCR_BASE+0x2) /* UIC1 enable */ +#define UIC1CR (UIC1_DCR_BASE+0x3) /* UIC1 critical */ +#define UIC1PR (UIC1_DCR_BASE+0x4) /* UIC1 polarity */ +#define UIC1TR (UIC1_DCR_BASE+0x5) /* UIC1 triggering */ +#define UIC1MSR (UIC1_DCR_BASE+0x6) /* UIC1 masked status */ +#define UIC1VR (UIC1_DCR_BASE+0x7) /* UIC1 vector */ +#define UIC1VCR (UIC1_DCR_BASE+0x8) /* UIC1 vector configuration */ + +#define UIC2SR (UIC2_DCR_BASE+0x0) /* UIC2 status-Read Clear */ +#define UIC2ER (UIC2_DCR_BASE+0x2) /* UIC2 enable */ +#define UIC2CR (UIC2_DCR_BASE+0x3) /* UIC2 critical */ +#define UIC2PR (UIC2_DCR_BASE+0x4) /* UIC2 polarity */ +#define UIC2TR (UIC2_DCR_BASE+0x5) /* UIC2 triggering */ +#define UIC2MSR (UIC2_DCR_BASE+0x6) /* UIC2 masked status */ +#define UIC2VR (UIC2_DCR_BASE+0x7) /* UIC2 vector */ +#define UIC2VCR (UIC2_DCR_BASE+0x8) /* UIC2 vector configuration */ + +#define UIC3SR (UIC3_DCR_BASE+0x0) /* UIC3 status-Read Clear */ +#define UIC3ER (UIC3_DCR_BASE+0x2) /* UIC3 enable */ +#define UIC3CR (UIC3_DCR_BASE+0x3) /* UIC3 critical */ +#define UIC3PR (UIC3_DCR_BASE+0x4) /* UIC3 polarity */ +#define UIC3TR (UIC3_DCR_BASE+0x5) /* UIC3 triggering */ +#define UIC3MSR (UIC3_DCR_BASE+0x6) /* UIC3 masked status */ +#define UIC3VR (UIC3_DCR_BASE+0x7) /* UIC3 vector */ +#define UIC3VCR (UIC3_DCR_BASE+0x8) /* UIC3 vector configuration */ + +/* + * Now the interrupt vector definitions. They are different for most of + * the 4xx variants, so we need some more #ifdef's here. No mask + * definitions anymore here. For this please use the UIC_MASK macro below. + * + * Note: Please only define the interrupts really used in U-Boot here. + * Those are the cascading and EMAC/MAL related interrupt. + */ + +#if defined(CONFIG_405EP) || defined(CONFIG_405GP) +#define VECNUM_MAL_SERR 10 +#define VECNUM_MAL_TXEOB 11 +#define VECNUM_MAL_RXEOB 12 +#define VECNUM_MAL_TXDE 13 +#define VECNUM_MAL_RXDE 14 +#define VECNUM_ETH0 15 +#define VECNUM_ETH1_OFFS 2 +#define VECNUM_EIRQ6 29 +#endif /* defined(CONFIG_405EP) */ + +#if defined(CONFIG_405EZ) +#define VECNUM_USBDEV 15 +#define VECNUM_ETH0 16 +#define VECNUM_MAL_SERR 18 +#define VECNUM_MAL_TXDE 18 +#define VECNUM_MAL_RXDE 18 +#define VECNUM_MAL_TXEOB 19 +#define VECNUM_MAL_RXEOB 21 +#endif /* CONFIG_405EX */ + +#if defined(CONFIG_405EX) +/* UIC 0 */ +#define VECNUM_MAL_TXEOB 10 +#define VECNUM_MAL_RXEOB 11 +#define VECNUM_ETH0 24 +#define VECNUM_ETH1_OFFS 1 +#define VECNUM_UIC2NCI 28 +#define VECNUM_UIC2CI 29 +#define VECNUM_UIC1NCI 30 +#define VECNUM_UIC1CI 31 + +/* UIC 1 */ +#define VECNUM_MAL_SERR (32 + 0) +#define VECNUM_MAL_TXDE (32 + 1) +#define VECNUM_MAL_RXDE (32 + 2) +#endif /* CONFIG_405EX */ + +#if defined(CONFIG_440GP) || \ + defined(CONFIG_440EP) || defined(CONFIG_440GR) +/* UIC 0 */ +#define VECNUM_MAL_TXEOB 10 +#define VECNUM_MAL_RXEOB 11 +#define VECNUM_UIC1NCI 30 +#define VECNUM_UIC1CI 31 + +/* UIC 1 */ +#define VECNUM_MAL_SERR (32 + 0) +#define VECNUM_MAL_TXDE (32 + 1) +#define VECNUM_MAL_RXDE (32 + 2) +#define VECNUM_USBDEV (32 + 23) +#define VECNUM_ETH0 (32 + 28) +#define VECNUM_ETH1_OFFS 2 +#endif /* CONFIG_440GP */ + +#if defined(CONFIG_440GX) +/* UICB 0 (440GX only) */ +/* + * All those defines below are off-by-one, so that the common UIC code + * can be used. So VECNUM_UIC1CI refers to VECNUM_UIC0CI etc. + */ +#define VECNUM_UIC1CI 0 +#define VECNUM_UIC1NCI 1 +#define VECNUM_UIC2CI 2 +#define VECNUM_UIC2NCI 3 +#define VECNUM_UIC3CI 4 +#define VECNUM_UIC3NCI 5 + +/* UIC 0, used as UIC1 on 440GX because of UICB0 */ +#define VECNUM_MAL_TXEOB (32 + 10) +#define VECNUM_MAL_RXEOB (32 + 11) + +/* UIC 1, used as UIC2 on 440GX because of UICB0 */ +#define VECNUM_MAL_SERR (64 + 0) +#define VECNUM_MAL_TXDE (64 + 1) +#define VECNUM_MAL_RXDE (64 + 2) +#define VECNUM_ETH0 (64 + 28) +#define VECNUM_ETH1_OFFS 2 +#endif /* CONFIG_440GX */ + +#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) +/* UIC 0 */ +#define VECNUM_MAL_TXEOB 10 +#define VECNUM_MAL_RXEOB 11 +#define VECNUM_USBDEV 20 +#define VECNUM_ETH0 24 +#define VECNUM_ETH1_OFFS 1 +#define VECNUM_UIC2NCI 28 +#define VECNUM_UIC2CI 29 +#define VECNUM_UIC1NCI 30 +#define VECNUM_UIC1CI 31 + +/* UIC 1 */ +#define VECNUM_MAL_SERR (32 + 0) +#define VECNUM_MAL_TXDE (32 + 1) +#define VECNUM_MAL_RXDE (32 + 2) + +/* UIC 2 */ +#define VECNUM_EIRQ2 (64 + 3) +#endif /* CONFIG_440EPX */ + +#if defined(CONFIG_440SP) +/* UIC 0 */ +#define VECNUM_UIC1NCI 30 +#define VECNUM_UIC1CI 31 + +/* UIC 1 */ +#define VECNUM_MAL_SERR (32 + 1) +#define VECNUM_MAL_TXDE (32 + 2) +#define VECNUM_MAL_RXDE (32 + 3) +#define VECNUM_MAL_TXEOB (32 + 6) +#define VECNUM_MAL_RXEOB (32 + 7) +#define VECNUM_ETH0 (32 + 28) +#endif /* CONFIG_440SP */ + +#if defined(CONFIG_440SPE) +/* UIC 0 */ +#define VECNUM_UIC2NCI 10 +#define VECNUM_UIC2CI 11 +#define VECNUM_UIC3NCI 16 +#define VECNUM_UIC3CI 17 +#define VECNUM_UIC1NCI 30 +#define VECNUM_UIC1CI 31 + +/* UIC 1 */ +#define VECNUM_MAL_SERR (32 + 1) +#define VECNUM_MAL_TXDE (32 + 2) +#define VECNUM_MAL_RXDE (32 + 3) +#define VECNUM_MAL_TXEOB (32 + 6) +#define VECNUM_MAL_RXEOB (32 + 7) +#define VECNUM_ETH0 (32 + 28) +#endif /* CONFIG_440SPE */ + +#if defined(CONFIG_460EX) || defined(CONFIG_460GT) +/* UIC 0 */ +#define VECNUM_UIC2NCI 10 +#define VECNUM_UIC2CI 11 +#define VECNUM_UIC3NCI 16 +#define VECNUM_UIC3CI 17 +#define VECNUM_UIC1NCI 30 +#define VECNUM_UIC1CI 31 + +/* UIC 2 */ +#define VECNUM_MAL_SERR (64 + 3) +#define VECNUM_MAL_TXDE (64 + 4) +#define VECNUM_MAL_RXDE (64 + 5) +#define VECNUM_MAL_TXEOB (64 + 6) +#define VECNUM_MAL_RXEOB (64 + 7) +#define VECNUM_ETH0 (64 + 16) +#define VECNUM_ETH1_OFFS 1 +#endif /* CONFIG_460EX */ + +#if defined(CONFIG_460SX) +/* UIC 0 */ +#define VECNUM_UIC2NCI 10 +#define VECNUM_UIC2CI 11 +#define VECNUM_UIC3NCI 16 +#define VECNUM_UIC3CI 17 +#define VECNUM_ETH0 19 +#define VECNUM_ETH1_OFFS 1 +#define VECNUM_UIC1NCI 30 +#define VECNUM_UIC1CI 31 + +/* UIC 1 */ +#define VECNUM_MAL_SERR (32 + 1) +#define VECNUM_MAL_TXDE (32 + 2) +#define VECNUM_MAL_RXDE (32 + 3) +#define VECNUM_MAL_TXEOB (32 + 6) +#define VECNUM_MAL_RXEOB (32 + 7) +#endif /* CONFIG_460EX */ + +#if !defined(VECNUM_ETH1_OFFS) +#define VECNUM_ETH1_OFFS 1 +#endif + +/* + * Mask definitions (used for example in 4xx_enet.c) + */ +#define UIC_MASK(vec) (0x80000000 >> ((vec) & 0x1f)) +/* UIC_NR won't work for 440GX because of its specific UIC DCR addresses */ +#define UIC_NR(vec) ((vec) >> 5) + +#endif /* _PPC4xx_UIC_H_ */ diff --git a/arch/ppc/include/asm/ppc4xx_config.h b/arch/ppc/include/asm/ppc4xx_config.h new file mode 100644 index 0000000..49acb60 --- /dev/null +++ b/arch/ppc/include/asm/ppc4xx_config.h @@ -0,0 +1,42 @@ +/* + * (C) Copyright 2008-2009 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * (C) Copyright 2009 + * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +#ifndef __PPC4xx_CONFIG_H +#define __PPC4xx_CONFIG_H + +#include <common.h> + +struct ppc4xx_config { + char label[16]; + char description[64]; + u8 val[CONFIG_4xx_CONFIG_BLOCKSIZE]; +}; + +extern struct ppc4xx_config ppc4xx_config_val[]; +extern int ppc4xx_config_count; + +#endif /* __PPC4xx_CONFIG_H */ diff --git a/arch/ppc/include/asm/processor.h b/arch/ppc/include/asm/processor.h new file mode 100644 index 0000000..9ec319a --- /dev/null +++ b/arch/ppc/include/asm/processor.h @@ -0,0 +1,1285 @@ +#ifndef __ASM_PPC_PROCESSOR_H +#define __ASM_PPC_PROCESSOR_H + +/* + * Default implementation of macro that returns current + * instruction pointer ("program counter"). + */ +#define current_text_addr() ({ __label__ _l; _l: &&_l;}) + +#include <linux/config.h> + +#include <asm/ptrace.h> +#include <asm/types.h> + +/* Machine State Register (MSR) Fields */ + +#ifdef CONFIG_PPC64BRIDGE +#define MSR_SF (1<<63) +#define MSR_ISF (1<<61) +#endif /* CONFIG_PPC64BRIDGE */ +#define MSR_UCLE (1<<26) /* User-mode cache lock enable (e500) */ +#define MSR_VEC (1<<25) /* Enable AltiVec(74xx) */ +#define MSR_SPE (1<<25) /* Enable SPE(e500) */ +#define MSR_POW (1<<18) /* Enable Power Management */ +#define MSR_WE (1<<18) /* Wait State Enable */ +#define MSR_TGPR (1<<17) /* TLB Update registers in use */ +#define MSR_CE (1<<17) /* Critical Interrupt Enable */ +#define MSR_ILE (1<<16) /* Interrupt Little Endian */ +#define MSR_EE (1<<15) /* External Interrupt Enable */ +#define MSR_PR (1<<14) /* Problem State / Privilege Level */ +#define MSR_FP (1<<13) /* Floating Point enable */ +#define MSR_ME (1<<12) /* Machine Check Enable */ +#define MSR_FE0 (1<<11) /* Floating Exception mode 0 */ +#define MSR_SE (1<<10) /* Single Step */ +#define MSR_DWE (1<<10) /* Debug Wait Enable (4xx) */ +#define MSR_UBLE (1<<10) /* BTB lock enable (e500) */ +#define MSR_BE (1<<9) /* Branch Trace */ +#define MSR_DE (1<<9) /* Debug Exception Enable */ +#define MSR_FE1 (1<<8) /* Floating Exception mode 1 */ +#define MSR_IP (1<<6) /* Exception prefix 0x000/0xFFF */ +#define MSR_IR (1<<5) /* Instruction Relocate */ +#define MSR_IS (1<<5) /* Book E Instruction space */ +#define MSR_DR (1<<4) /* Data Relocate */ +#define MSR_DS (1<<4) /* Book E Data space */ +#define MSR_PE (1<<3) /* Protection Enable */ +#define MSR_PX (1<<2) /* Protection Exclusive Mode */ +#define MSR_PMM (1<<2) /* Performance monitor mark bit (e500) */ +#define MSR_RI (1<<1) /* Recoverable Exception */ +#define MSR_LE (1<<0) /* Little Endian */ + +#ifdef CONFIG_APUS_FAST_EXCEPT +#define MSR_ MSR_ME|MSR_IP|MSR_RI +#else +#define MSR_ MSR_ME|MSR_RI +#endif +#ifndef CONFIG_E500 +#define MSR_KERNEL MSR_|MSR_IR|MSR_DR +#else +#define MSR_KERNEL MSR_ME +#endif + +/* Floating Point Status and Control Register (FPSCR) Fields */ + +#define FPSCR_FX 0x80000000 /* FPU exception summary */ +#define FPSCR_FEX 0x40000000 /* FPU enabled exception summary */ +#define FPSCR_VX 0x20000000 /* Invalid operation summary */ +#define FPSCR_OX 0x10000000 /* Overflow exception summary */ +#define FPSCR_UX 0x08000000 /* Underflow exception summary */ +#define FPSCR_ZX 0x04000000 /* Zero-devide exception summary */ +#define FPSCR_XX 0x02000000 /* Inexact exception summary */ +#define FPSCR_VXSNAN 0x01000000 /* Invalid op for SNaN */ +#define FPSCR_VXISI 0x00800000 /* Invalid op for Inv - Inv */ +#define FPSCR_VXIDI 0x00400000 /* Invalid op for Inv / Inv */ +#define FPSCR_VXZDZ 0x00200000 /* Invalid op for Zero / Zero */ +#define FPSCR_VXIMZ 0x00100000 /* Invalid op for Inv * Zero */ +#define FPSCR_VXVC 0x00080000 /* Invalid op for Compare */ +#define FPSCR_FR 0x00040000 /* Fraction rounded */ +#define FPSCR_FI 0x00020000 /* Fraction inexact */ +#define FPSCR_FPRF 0x0001f000 /* FPU Result Flags */ +#define FPSCR_FPCC 0x0000f000 /* FPU Condition Codes */ +#define FPSCR_VXSOFT 0x00000400 /* Invalid op for software request */ +#define FPSCR_VXSQRT 0x00000200 /* Invalid op for square root */ +#define FPSCR_VXCVI 0x00000100 /* Invalid op for integer convert */ +#define FPSCR_VE 0x00000080 /* Invalid op exception enable */ +#define FPSCR_OE 0x00000040 /* IEEE overflow exception enable */ +#define FPSCR_UE 0x00000020 /* IEEE underflow exception enable */ +#define FPSCR_ZE 0x00000010 /* IEEE zero divide exception enable */ +#define FPSCR_XE 0x00000008 /* FP inexact exception enable */ +#define FPSCR_NI 0x00000004 /* FPU non IEEE-Mode */ +#define FPSCR_RN 0x00000003 /* FPU rounding control */ + +/* Special Purpose Registers (SPRNs)*/ + +/* PPC440 Architecture is BOOK-E */ +#ifdef CONFIG_440 +#define CONFIG_BOOKE +#endif + +#define SPRN_CCR0 0x3B3 /* Core Configuration Register 0 */ +#ifdef CONFIG_BOOKE +#define SPRN_CCR1 0x378 /* Core Configuration Register for 440 only */ +#endif +#define SPRN_CDBCR 0x3D7 /* Cache Debug Control Register */ +#define SPRN_CTR 0x009 /* Count Register */ +#define SPRN_DABR 0x3F5 /* Data Address Breakpoint Register */ +#ifndef CONFIG_BOOKE +#define SPRN_DAC1 0x3F6 /* Data Address Compare 1 */ +#define SPRN_DAC2 0x3F7 /* Data Address Compare 2 */ +#else +#define SPRN_DAC1 0x13C /* Book E Data Address Compare 1 */ +#define SPRN_DAC2 0x13D /* Book E Data Address Compare 2 */ +#endif /* CONFIG_BOOKE */ +#define SPRN_DAR 0x013 /* Data Address Register */ +#define SPRN_DBAT0L 0x219 /* Data BAT 0 Lower Register */ +#define SPRN_DBAT0U 0x218 /* Data BAT 0 Upper Register */ +#define SPRN_DBAT1L 0x21B /* Data BAT 1 Lower Register */ +#define SPRN_DBAT1U 0x21A /* Data BAT 1 Upper Register */ +#define SPRN_DBAT2L 0x21D /* Data BAT 2 Lower Register */ +#define SPRN_DBAT2U 0x21C /* Data BAT 2 Upper Register */ +#define SPRN_DBAT3L 0x21F /* Data BAT 3 Lower Register */ +#define SPRN_DBAT3U 0x21E /* Data BAT 3 Upper Register */ +#define SPRN_DBAT4L 0x239 /* Data BAT 4 Lower Register */ +#define SPRN_DBAT4U 0x238 /* Data BAT 4 Upper Register */ +#define SPRN_DBAT5L 0x23B /* Data BAT 5 Lower Register */ +#define SPRN_DBAT5U 0x23A /* Data BAT 5 Upper Register */ +#define SPRN_DBAT6L 0x23D /* Data BAT 6 Lower Register */ +#define SPRN_DBAT6U 0x23C /* Data BAT 6 Upper Register */ +#define SPRN_DBAT7L 0x23F /* Data BAT 7 Lower Register */ +#define SPRN_DBAT7U 0x23E /* Data BAT 7 Lower Register */ +#define SPRN_DBCR 0x3F2 /* Debug Control Regsiter */ +#define DBCR_EDM 0x80000000 +#define DBCR_IDM 0x40000000 +#define DBCR_RST(x) (((x) & 0x3) << 28) +#define DBCR_RST_NONE 0 +#define DBCR_RST_CORE 1 +#define DBCR_RST_CHIP 2 +#define DBCR_RST_SYSTEM 3 +#define DBCR_IC 0x08000000 /* Instruction Completion Debug Evnt */ +#define DBCR_BT 0x04000000 /* Branch Taken Debug Event */ +#define DBCR_EDE 0x02000000 /* Exception Debug Event */ +#define DBCR_TDE 0x01000000 /* TRAP Debug Event */ +#define DBCR_FER 0x00F80000 /* First Events Remaining Mask */ +#define DBCR_FT 0x00040000 /* Freeze Timers on Debug Event */ +#define DBCR_IA1 0x00020000 /* Instr. Addr. Compare 1 Enable */ +#define DBCR_IA2 0x00010000 /* Instr. Addr. Compare 2 Enable */ +#define DBCR_D1R 0x00008000 /* Data Addr. Compare 1 Read Enable */ +#define DBCR_D1W 0x00004000 /* Data Addr. Compare 1 Write Enable */ +#define DBCR_D1S(x) (((x) & 0x3) << 12) /* Data Adrr. Compare 1 Size */ +#define DAC_BYTE 0 +#define DAC_HALF 1 +#define DAC_WORD 2 +#define DAC_QUAD 3 +#define DBCR_D2R 0x00000800 /* Data Addr. Compare 2 Read Enable */ +#define DBCR_D2W 0x00000400 /* Data Addr. Compare 2 Write Enable */ +#define DBCR_D2S(x) (((x) & 0x3) << 8) /* Data Addr. Compare 2 Size */ +#define DBCR_SBT 0x00000040 /* Second Branch Taken Debug Event */ +#define DBCR_SED 0x00000020 /* Second Exception Debug Event */ +#define DBCR_STD 0x00000010 /* Second Trap Debug Event */ +#define DBCR_SIA 0x00000008 /* Second IAC Enable */ +#define DBCR_SDA 0x00000004 /* Second DAC Enable */ +#define DBCR_JOI 0x00000002 /* JTAG Serial Outbound Int. Enable */ +#define DBCR_JII 0x00000001 /* JTAG Serial Inbound Int. Enable */ +#ifndef CONFIG_BOOKE +#define SPRN_DBCR0 0x3F2 /* Debug Control Register 0 */ +#else +#define SPRN_DBCR0 0x134 /* Book E Debug Control Register 0 */ +#endif /* CONFIG_BOOKE */ +#ifndef CONFIG_BOOKE +#define SPRN_DBCR1 0x3BD /* Debug Control Register 1 */ +#define SPRN_DBSR 0x3F0 /* Debug Status Register */ +#else +#define SPRN_DBCR1 0x135 /* Book E Debug Control Register 1 */ +#ifdef CONFIG_BOOKE +#define SPRN_DBDR 0x3f3 /* Debug Data Register */ +#endif +#define SPRN_DBSR 0x130 /* Book E Debug Status Register */ +#define DBSR_IC 0x08000000 /* Book E Instruction Completion */ +#define DBSR_TIE 0x01000000 /* Book E Trap Instruction Event */ +#endif /* CONFIG_BOOKE */ +#define SPRN_DCCR 0x3FA /* Data Cache Cacheability Register */ +#define DCCR_NOCACHE 0 /* Noncacheable */ +#define DCCR_CACHE 1 /* Cacheable */ +#ifndef CONFIG_BOOKE +#define SPRN_DCDBTRL 0x39c /* Data Cache Debug Tag Register Low */ +#define SPRN_DCDBTRH 0x39d /* Data Cache Debug Tag Register High */ +#endif +#define SPRN_DCMP 0x3D1 /* Data TLB Compare Register */ +#define SPRN_DCWR 0x3BA /* Data Cache Write-thru Register */ +#define DCWR_COPY 0 /* Copy-back */ +#define DCWR_WRITE 1 /* Write-through */ +#ifndef CONFIG_BOOKE +#define SPRN_DEAR 0x3D5 /* Data Error Address Register */ +#else +#define SPRN_DEAR 0x03D /* Book E Data Error Address Register */ +#endif /* CONFIG_BOOKE */ +#define SPRN_DEC 0x016 /* Decrement Register */ +#define SPRN_DMISS 0x3D0 /* Data TLB Miss Register */ +#ifdef CONFIG_BOOKE +#define SPRN_DNV0 0x390 /* Data Cache Normal Victim 0 */ +#define SPRN_DNV1 0x391 /* Data Cache Normal Victim 1 */ +#define SPRN_DNV2 0x392 /* Data Cache Normal Victim 2 */ +#define SPRN_DNV3 0x393 /* Data Cache Normal Victim 3 */ +#endif +#define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */ +#ifdef CONFIG_BOOKE +#define SPRN_DTV0 0x394 /* Data Cache Transient Victim 0 */ +#define SPRN_DTV1 0x395 /* Data Cache Transient Victim 1 */ +#define SPRN_DTV2 0x396 /* Data Cache Transient Victim 2 */ +#define SPRN_DTV3 0x397 /* Data Cache Transient Victim 3 */ +#define SPRN_DVLIM 0x398 /* Data Cache Victim Limit */ +#endif +#define SPRN_EAR 0x11A /* External Address Register */ +#ifndef CONFIG_BOOKE +#define SPRN_ESR 0x3D4 /* Exception Syndrome Register */ +#else +#define SPRN_ESR 0x03E /* Book E Exception Syndrome Register */ +#endif /* CONFIG_BOOKE */ +#define ESR_IMCP 0x80000000 /* Instr. Machine Check - Protection */ +#define ESR_IMCN 0x40000000 /* Instr. Machine Check - Non-config */ +#define ESR_IMCB 0x20000000 /* Instr. Machine Check - Bus error */ +#define ESR_IMCT 0x10000000 /* Instr. Machine Check - Timeout */ +#define ESR_PIL 0x08000000 /* Program Exception - Illegal */ +#define ESR_PPR 0x04000000 /* Program Exception - Priveleged */ +#define ESR_PTR 0x02000000 /* Program Exception - Trap */ +#define ESR_DST 0x00800000 /* Storage Exception - Data miss */ +#define ESR_DIZ 0x00400000 /* Storage Exception - Zone fault */ +#define SPRN_EVPR 0x3D6 /* Exception Vector Prefix Register */ +#define SPRN_HASH1 0x3D2 /* Primary Hash Address Register */ +#define SPRN_HASH2 0x3D3 /* Secondary Hash Address Resgister */ +#define SPRN_HID0 0x3F0 /* Hardware Implementation Register 0 */ + +#define HID0_ICE_SHIFT 15 +#define HID0_DCE_SHIFT 14 +#define HID0_DLOCK_SHIFT 12 + +#define HID0_EMCP (1<<31) /* Enable Machine Check pin */ +#define HID0_EBA (1<<29) /* Enable Bus Address Parity */ +#define HID0_EBD (1<<28) /* Enable Bus Data Parity */ +#define HID0_SBCLK (1<<27) +#define HID0_EICE (1<<26) +#define HID0_ECLK (1<<25) +#define HID0_PAR (1<<24) +#define HID0_DOZE (1<<23) +#define HID0_NAP (1<<22) +#define HID0_SLEEP (1<<21) +#define HID0_DPM (1<<20) +#define HID0_ICE (1<<HID0_ICE_SHIFT) /* Instruction Cache Enable */ +#define HID0_DCE (1<<HID0_DCE_SHIFT) /* Data Cache Enable */ +#define HID0_TBEN (1<<14) /* Time Base Enable */ +#define HID0_ILOCK (1<<13) /* Instruction Cache Lock */ +#define HID0_DLOCK (1<<HID0_DLOCK_SHIFT) /* Data Cache Lock */ +#define HID0_ICFI (1<<11) /* Instr. Cache Flash Invalidate */ +#define HID0_DCFI (1<<10) /* Data Cache Flash Invalidate */ +#define HID0_DCI HID0_DCFI +#define HID0_SPD (1<<9) /* Speculative disable */ +#define HID0_ENMAS7 (1<<7) /* Enable MAS7 Update for 36-bit phys */ +#define HID0_SGE (1<<7) /* Store Gathering Enable */ +#define HID0_SIED HID_SGE /* Serial Instr. Execution [Disable] */ +#define HID0_DCFA (1<<6) /* Data Cache Flush Assist */ +#define HID0_BTIC (1<<5) /* Branch Target Instruction Cache Enable */ +#define HID0_ABE (1<<3) /* Address Broadcast Enable */ +#define HID0_BHTE (1<<2) /* Branch History Table Enable */ +#define HID0_BTCD (1<<1) /* Branch target cache disable */ +#define SPRN_HID1 0x3F1 /* Hardware Implementation Register 1 */ +#define HID1_RFXE (1<<17) /* Read Fault Exception Enable */ +#define HID1_ASTME (1<<13) /* Address bus streaming mode */ +#define HID1_ABE (1<<12) /* Address broadcast enable */ +#define HID1_MBDD (1<<6) /* optimized sync instruction */ +#define SPRN_IABR 0x3F2 /* Instruction Address Breakpoint Register */ +#ifndef CONFIG_BOOKE +#define SPRN_IAC1 0x3F4 /* Instruction Address Compare 1 */ +#define SPRN_IAC2 0x3F5 /* Instruction Address Compare 2 */ +#else +#define SPRN_IAC1 0x138 /* Book E Instruction Address Compare 1 */ +#define SPRN_IAC2 0x139 /* Book E Instruction Address Compare 2 */ +#endif /* CONFIG_BOOKE */ +#define SPRN_IBAT0L 0x211 /* Instruction BAT 0 Lower Register */ +#define SPRN_IBAT0U 0x210 /* Instruction BAT 0 Upper Register */ +#define SPRN_IBAT1L 0x213 /* Instruction BAT 1 Lower Register */ +#define SPRN_IBAT1U 0x212 /* Instruction BAT 1 Upper Register */ +#define SPRN_IBAT2L 0x215 /* Instruction BAT 2 Lower Register */ +#define SPRN_IBAT2U 0x214 /* Instruction BAT 2 Upper Register */ +#define SPRN_IBAT3L 0x217 /* Instruction BAT 3 Lower Register */ +#define SPRN_IBAT3U 0x216 /* Instruction BAT 3 Upper Register */ +#define SPRN_IBAT4L 0x231 /* Instruction BAT 4 Lower Register */ +#define SPRN_IBAT4U 0x230 /* Instruction BAT 4 Upper Register */ +#define SPRN_IBAT5L 0x233 /* Instruction BAT 5 Lower Register */ +#define SPRN_IBAT5U 0x232 /* Instruction BAT 5 Upper Register */ +#define SPRN_IBAT6L 0x235 /* Instruction BAT 6 Lower Register */ +#define SPRN_IBAT6U 0x234 /* Instruction BAT 6 Upper Register */ +#define SPRN_IBAT7L 0x237 /* Instruction BAT 7 Lower Register */ +#define SPRN_IBAT7U 0x236 /* Instruction BAT 7 Upper Register */ +#define SPRN_ICCR 0x3FB /* Instruction Cache Cacheability Register */ +#define ICCR_NOCACHE 0 /* Noncacheable */ +#define ICCR_CACHE 1 /* Cacheable */ +#define SPRN_ICDBDR 0x3D3 /* Instruction Cache Debug Data Register */ +#ifdef CONFIG_BOOKE +#define SPRN_ICDBTRL 0x39e /* instruction cache debug tag register low */ +#define SPRN_ICDBTRH 0x39f /* instruction cache debug tag register high */ +#endif +#define SPRN_ICMP 0x3D5 /* Instruction TLB Compare Register */ +#define SPRN_ICTC 0x3FB /* Instruction Cache Throttling Control Reg */ +#define SPRN_IMISS 0x3D4 /* Instruction TLB Miss Register */ +#define SPRN_IMMR 0x27E /* Internal Memory Map Register */ +#ifdef CONFIG_BOOKE +#define SPRN_INV0 0x370 /* Instruction Cache Normal Victim 0 */ +#define SPRN_INV1 0x371 /* Instruction Cache Normal Victim 1 */ +#define SPRN_INV2 0x372 /* Instruction Cache Normal Victim 2 */ +#define SPRN_INV3 0x373 /* Instruction Cache Normal Victim 3 */ +#define SPRN_ITV0 0x374 /* Instruction Cache Transient Victim 0 */ +#define SPRN_ITV1 0x375 /* Instruction Cache Transient Victim 1 */ +#define SPRN_ITV2 0x376 /* Instruction Cache Transient Victim 2 */ +#define SPRN_ITV3 0x377 /* Instruction Cache Transient Victim 3 */ +#define SPRN_IVLIM 0x399 /* Instruction Cache Victim Limit */ +#endif +#define SPRN_LDSTCR 0x3F8 /* Load/Store Control Register */ +#define SPRN_L2CR 0x3F9 /* Level 2 Cache Control Regsiter */ +#define SPRN_LR 0x008 /* Link Register */ +#define SPRN_MBAR 0x137 /* System memory base address */ +#define SPRN_MMCR0 0x3B8 /* Monitor Mode Control Register 0 */ +#define SPRN_MMCR1 0x3BC /* Monitor Mode Control Register 1 */ +#ifdef CONFIG_BOOKE +#define SPRN_MMUCR 0x3b2 /* MMU Control Register */ +#endif +#define SPRN_PBL1 0x3FC /* Protection Bound Lower 1 */ +#define SPRN_PBL2 0x3FE /* Protection Bound Lower 2 */ +#define SPRN_PBU1 0x3FD /* Protection Bound Upper 1 */ +#define SPRN_PBU2 0x3FF /* Protection Bound Upper 2 */ +#ifndef CONFIG_BOOKE +#define SPRN_PID 0x3B1 /* Process ID */ +#define SPRN_PIR 0x3FF /* Processor Identification Register */ +#else +#define SPRN_PID 0x030 /* Book E Process ID */ +#define SPRN_PIR 0x11E /* Book E Processor Identification Register */ +#endif /* CONFIG_BOOKE */ +#define SPRN_PIT 0x3DB /* Programmable Interval Timer */ +#define SPRN_PMC1 0x3B9 /* Performance Counter Register 1 */ +#define SPRN_PMC2 0x3BA /* Performance Counter Register 2 */ +#define SPRN_PMC3 0x3BD /* Performance Counter Register 3 */ +#define SPRN_PMC4 0x3BE /* Performance Counter Register 4 */ +#define SPRN_PVR 0x11F /* Processor Version Register */ +#define SPRN_RPA 0x3D6 /* Required Physical Address Register */ +#ifdef CONFIG_BOOKE +#define SPRN_RSTCFG 0x39b /* Reset Configuration */ +#endif +#define SPRN_SDA 0x3BF /* Sampled Data Address Register */ +#define SPRN_SDR1 0x019 /* MMU Hash Base Register */ +#define SPRN_SGR 0x3B9 /* Storage Guarded Register */ +#define SGR_NORMAL 0 +#define SGR_GUARDED 1 +#define SPRN_SIA 0x3BB /* Sampled Instruction Address Register */ +#define SPRN_SPRG0 0x110 /* Special Purpose Register General 0 */ +#define SPRN_SPRG1 0x111 /* Special Purpose Register General 1 */ +#define SPRN_SPRG2 0x112 /* Special Purpose Register General 2 */ +#define SPRN_SPRG3 0x113 /* Special Purpose Register General 3 */ +#define SPRN_SPRG4 0x114 /* Special Purpose Register General 4 */ +#define SPRN_SPRG5 0x115 /* Special Purpose Register General 5 */ +#define SPRN_SPRG6 0x116 /* Special Purpose Register General 6 */ +#define SPRN_SPRG7 0x117 /* Special Purpose Register General 7 */ +#define SPRN_SRR0 0x01A /* Save/Restore Register 0 */ +#define SPRN_SRR1 0x01B /* Save/Restore Register 1 */ +#define SPRN_SRR2 0x3DE /* Save/Restore Register 2 */ +#define SPRN_SRR3 0x3DF /* Save/Restore Register 3 */ + +#ifdef CONFIG_BOOKE +#define SPRN_SVR 0x3FF /* System Version Register */ +#else +#define SPRN_SVR 0x11E /* System Version Register */ +#endif +#define SPRN_TBHI 0x3DC /* Time Base High */ +#define SPRN_TBHU 0x3CC /* Time Base High User-mode */ +#define SPRN_TBLO 0x3DD /* Time Base Low */ +#define SPRN_TBLU 0x3CD /* Time Base Low User-mode */ +#define SPRN_TBRL 0x10C /* Time Base Read Lower Register */ +#define SPRN_TBRU 0x10D /* Time Base Read Upper Register */ +#define SPRN_TBWL 0x11C /* Time Base Write Lower Register */ +#define SPRN_TBWU 0x11D /* Time Base Write Upper Register */ +#ifndef CONFIG_BOOKE +#define SPRN_TCR 0x3DA /* Timer Control Register */ +#else +#define SPRN_TCR 0x154 /* Book E Timer Control Register */ +#endif /* CONFIG_BOOKE */ +#define TCR_WP(x) (((x)&0x3)<<30) /* WDT Period */ +#define WP_2_17 0 /* 2^17 clocks */ +#define WP_2_21 1 /* 2^21 clocks */ +#define WP_2_25 2 /* 2^25 clocks */ +#define WP_2_29 3 /* 2^29 clocks */ +#define TCR_WRC(x) (((x)&0x3)<<28) /* WDT Reset Control */ +#define WRC_NONE 0 /* No reset will occur */ +#define WRC_CORE 1 /* Core reset will occur */ +#define WRC_CHIP 2 /* Chip reset will occur */ +#define WRC_SYSTEM 3 /* System reset will occur */ +#define TCR_WIE 0x08000000 /* WDT Interrupt Enable */ +#define TCR_PIE 0x04000000 /* PIT Interrupt Enable */ +#define TCR_FP(x) (((x)&0x3)<<24) /* FIT Period */ +#define FP_2_9 0 /* 2^9 clocks */ +#define FP_2_13 1 /* 2^13 clocks */ +#define FP_2_17 2 /* 2^17 clocks */ +#define FP_2_21 3 /* 2^21 clocks */ +#define TCR_FIE 0x00800000 /* FIT Interrupt Enable */ +#define TCR_ARE 0x00400000 /* Auto Reload Enable */ +#define SPRN_THRM1 0x3FC /* Thermal Management Register 1 */ +#define THRM1_TIN (1<<0) +#define THRM1_TIV (1<<1) +#define THRM1_THRES (0x7f<<2) +#define THRM1_TID (1<<29) +#define THRM1_TIE (1<<30) +#define THRM1_V (1<<31) +#define SPRN_THRM2 0x3FD /* Thermal Management Register 2 */ +#define SPRN_THRM3 0x3FE /* Thermal Management Register 3 */ +#define THRM3_E (1<<31) +#define SPRN_TLBMISS 0x3D4 /* 980 7450 TLB Miss Register */ +#ifndef CONFIG_BOOKE +#define SPRN_TSR 0x3D8 /* Timer Status Register */ +#else +#define SPRN_TSR 0x150 /* Book E Timer Status Register */ +#endif /* CONFIG_BOOKE */ +#define TSR_ENW 0x80000000 /* Enable Next Watchdog */ +#define TSR_WIS 0x40000000 /* WDT Interrupt Status */ +#define TSR_WRS(x) (((x)&0x3)<<28) /* WDT Reset Status */ +#define WRS_NONE 0 /* No WDT reset occurred */ +#define WRS_CORE 1 /* WDT forced core reset */ +#define WRS_CHIP 2 /* WDT forced chip reset */ +#define WRS_SYSTEM 3 /* WDT forced system reset */ +#define TSR_PIS 0x08000000 /* PIT Interrupt Status */ +#define TSR_FIS 0x04000000 /* FIT Interrupt Status */ +#define SPRN_UMMCR0 0x3A8 /* User Monitor Mode Control Register 0 */ +#define SPRN_UMMCR1 0x3AC /* User Monitor Mode Control Register 0 */ +#define SPRN_UPMC1 0x3A9 /* User Performance Counter Register 1 */ +#define SPRN_UPMC2 0x3AA /* User Performance Counter Register 2 */ +#define SPRN_UPMC3 0x3AD /* User Performance Counter Register 3 */ +#define SPRN_UPMC4 0x3AE /* User Performance Counter Register 4 */ +#define SPRN_USIA 0x3AB /* User Sampled Instruction Address Register */ +#define SPRN_XER 0x001 /* Fixed Point Exception Register */ +#define SPRN_ZPR 0x3B0 /* Zone Protection Register */ + +/* Book E definitions */ +#define SPRN_DECAR 0x036 /* Decrementer Auto Reload Register */ +#define SPRN_CSRR0 0x03A /* Critical SRR0 */ +#define SPRN_CSRR1 0x03B /* Critical SRR0 */ +#define SPRN_IVPR 0x03F /* Interrupt Vector Prefix Register */ +#define SPRN_USPRG0 0x100 /* User Special Purpose Register General 0 */ +#define SPRN_SPRG4R 0x104 /* Special Purpose Register General 4 Read */ +#define SPRN_SPRG5R 0x105 /* Special Purpose Register General 5 Read */ +#define SPRN_SPRG6R 0x106 /* Special Purpose Register General 6 Read */ +#define SPRN_SPRG7R 0x107 /* Special Purpose Register General 7 Read */ +#define SPRN_SPRG4W 0x114 /* Special Purpose Register General 4 Write */ +#define SPRN_SPRG5W 0x115 /* Special Purpose Register General 5 Write */ +#define SPRN_SPRG6W 0x116 /* Special Purpose Register General 6 Write */ +#define SPRN_SPRG7W 0x117 /* Special Purpose Register General 7 Write */ +#define SPRN_DBCR2 0x136 /* Debug Control Register 2 */ +#define SPRN_IAC3 0x13A /* Instruction Address Compare 3 */ +#define SPRN_IAC4 0x13B /* Instruction Address Compare 4 */ +#define SPRN_DVC1 0x13E /* Data Value Compare Register 1 */ +#define SPRN_DVC2 0x13F /* Data Value Compare Register 2 */ +#define SPRN_IVOR0 0x190 /* Interrupt Vector Offset Register 0 */ +#define SPRN_IVOR1 0x191 /* Interrupt Vector Offset Register 1 */ +#define SPRN_IVOR2 0x192 /* Interrupt Vector Offset Register 2 */ +#define SPRN_IVOR3 0x193 /* Interrupt Vector Offset Register 3 */ +#define SPRN_IVOR4 0x194 /* Interrupt Vector Offset Register 4 */ +#define SPRN_IVOR5 0x195 /* Interrupt Vector Offset Register 5 */ +#define SPRN_IVOR6 0x196 /* Interrupt Vector Offset Register 6 */ +#define SPRN_IVOR7 0x197 /* Interrupt Vector Offset Register 7 */ +#define SPRN_IVOR8 0x198 /* Interrupt Vector Offset Register 8 */ +#define SPRN_IVOR9 0x199 /* Interrupt Vector Offset Register 9 */ +#define SPRN_IVOR10 0x19a /* Interrupt Vector Offset Register 10 */ +#define SPRN_IVOR11 0x19b /* Interrupt Vector Offset Register 11 */ +#define SPRN_IVOR12 0x19c /* Interrupt Vector Offset Register 12 */ +#define SPRN_IVOR13 0x19d /* Interrupt Vector Offset Register 13 */ +#define SPRN_IVOR14 0x19e /* Interrupt Vector Offset Register 14 */ +#define SPRN_IVOR15 0x19f /* Interrupt Vector Offset Register 15 */ +#define SPRN_IVOR38 0x1b0 /* Interrupt Vector Offset Register 38 */ +#define SPRN_IVOR39 0x1b1 /* Interrupt Vector Offset Register 39 */ +#define SPRN_IVOR40 0x1b2 /* Interrupt Vector Offset Register 40 */ +#define SPRN_IVOR41 0x1b3 /* Interrupt Vector Offset Register 41 */ +#define SPRN_GIVOR2 0x1b8 /* Guest Interrupt Vector Offset Register 2 */ +#define SPRN_GIVOR3 0x1b9 /* Guest Interrupt Vector Offset Register 3 */ +#define SPRN_GIVOR4 0x1ba /* Guest Interrupt Vector Offset Register 4 */ +#define SPRN_GIVOR8 0x1bb /* Guest Interrupt Vector Offset Register 8 */ +#define SPRN_GIVOR13 0x1bc /* Guest Interrupt Vector Offset Register 13 */ +#define SPRN_GIVOR14 0x1bd /* Guest Interrupt Vector Offset Register 14 */ + +/* e500 definitions */ +#define SPRN_L1CFG0 0x203 /* L1 Cache Configuration Register 0 */ +#define SPRN_L1CFG1 0x204 /* L1 Cache Configuration Register 1 */ +#define SPRN_L2CFG0 0x207 /* L2 Cache Configuration Register 0 */ +#define SPRN_L1CSR0 0x3f2 /* L1 Data Cache Control and Status Register 0 */ +#define L1CSR0_CPE 0x00010000 /* Data Cache Parity Enable */ +#define L1CSR0_DCLFR 0x00000100 /* D-Cache Lock Flash Reset */ +#define L1CSR0_DCFI 0x00000002 /* Data Cache Flash Invalidate */ +#define L1CSR0_DCE 0x00000001 /* Data Cache Enable */ +#define SPRN_L1CSR1 0x3f3 /* L1 Instruction Cache Control and Status Register 1 */ +#define L1CSR1_CPE 0x00010000 /* Instruction Cache Parity Enable */ +#define L1CSR1_ICLFR 0x00000100 /* I-Cache Lock Flash Reset */ +#define L1CSR1_ICFI 0x00000002 /* Instruction Cache Flash Invalidate */ +#define L1CSR1_ICE 0x00000001 /* Instruction Cache Enable */ +#define SPRN_L1CSR2 0x25e /* L1 Data Cache Control and Status Register 2 */ +#define SPRN_L2CSR0 0x3f9 /* L2 Data Cache Control and Status Register 0 */ +#define L2CSR0_L2E 0x80000000 /* L2 Cache Enable */ +#define L2CSR0_L2PE 0x40000000 /* L2 Cache Parity/ECC Enable */ +#define L2CSR0_L2WP 0x1c000000 /* L2 I/D Way Partioning */ +#define L2CSR0_L2CM 0x03000000 /* L2 Cache Coherency Mode */ +#define L2CSR0_L2FI 0x00200000 /* L2 Cache Flash Invalidate */ +#define L2CSR0_L2IO 0x00100000 /* L2 Cache Instruction Only */ +#define L2CSR0_L2DO 0x00010000 /* L2 Cache Data Only */ +#define L2CSR0_L2REP 0x00003000 /* L2 Line Replacement Algo */ +#define L2CSR0_L2FL 0x00000800 /* L2 Cache Flush */ +#define L2CSR0_L2LFC 0x00000400 /* L2 Cache Lock Flash Clear */ +#define L2CSR0_L2LOA 0x00000080 /* L2 Cache Lock Overflow Allocate */ +#define L2CSR0_L2LO 0x00000020 /* L2 Cache Lock Overflow */ +#define SPRN_L2CSR1 0x3fa /* L2 Data Cache Control and Status Register 1 */ + +#define SPRN_TLB0CFG 0x2B0 /* TLB 0 Config Register */ +#define SPRN_TLB1CFG 0x2B1 /* TLB 1 Config Register */ +#define SPRN_MMUCSR0 0x3f4 /* MMU control and status register 0 */ +#define SPRN_MAS0 0x270 /* MMU Assist Register 0 */ +#define SPRN_MAS1 0x271 /* MMU Assist Register 1 */ +#define SPRN_MAS2 0x272 /* MMU Assist Register 2 */ +#define SPRN_MAS3 0x273 /* MMU Assist Register 3 */ +#define SPRN_MAS4 0x274 /* MMU Assist Register 4 */ +#define SPRN_MAS5 0x275 /* MMU Assist Register 5 */ +#define SPRN_MAS6 0x276 /* MMU Assist Register 6 */ +#define SPRN_MAS7 0x3B0 /* MMU Assist Register 7 */ +#define SPRN_MAS8 0x155 /* MMU Assist Register 8 */ + +#define SPRN_IVOR32 0x210 /* Interrupt Vector Offset Register 32 */ +#define SPRN_IVOR33 0x211 /* Interrupt Vector Offset Register 33 */ +#define SPRN_IVOR34 0x212 /* Interrupt Vector Offset Register 34 */ +#define SPRN_IVOR35 0x213 /* Interrupt Vector Offset Register 35 */ +#define SPRN_IVOR36 0x214 /* Interrupt Vector Offset Register 36 */ +#define SPRN_IVOR37 0x215 /* Interrupt Vector Offset Register 37 */ +#define SPRN_SPEFSCR 0x200 /* SPE & Embedded FP Status & Control */ + +#define SPRN_MCSRR0 0x23a /* Machine Check Save and Restore Register 0 */ +#define SPRN_MCSRR1 0x23b /* Machine Check Save and Restore Register 1 */ +#define SPRN_BUCSR 0x3f5 /* Branch Control and Status Register */ +#define BUCSR_BBFI 0x00000200 /* Branch buffer flash invalidate */ +#define BUCSR_BPEN 0x00000001 /* Branch prediction enable */ +#define BUCSR_ENABLE (BUCSR_BBFI|BUCSR_BPEN) +#define SPRN_BBEAR 0x201 /* Branch Buffer Entry Address Register */ +#define SPRN_BBTAR 0x202 /* Branch Buffer Target Address Register */ +#define SPRN_PID1 0x279 /* Process ID Register 1 */ +#define SPRN_PID2 0x27a /* Process ID Register 2 */ +#define SPRN_MCSR 0x23c /* Machine Check Syndrome register */ +#define SPRN_MCAR 0x23d /* Machine Check Address register */ +#define MCSR_MCS 0x80000000 /* Machine Check Summary */ +#define MCSR_IB 0x40000000 /* Instruction PLB Error */ +#if defined(CONFIG_440) +#define MCSR_DRB 0x20000000 /* Data Read PLB Error */ +#define MCSR_DWB 0x10000000 /* Data Write PLB Error */ +#else +#define MCSR_DB 0x20000000 /* Data PLB Error */ +#endif /* defined(CONFIG_440) */ +#define MCSR_TLBP 0x08000000 /* TLB Parity Error */ +#define MCSR_ICP 0x04000000 /* I-Cache Parity Error */ +#define MCSR_DCSP 0x02000000 /* D-Cache Search Parity Error */ +#define MCSR_DCFP 0x01000000 /* D-Cache Flush Parity Error */ +#define MCSR_IMPE 0x00800000 /* Imprecise Machine Check Exception */ +#define ESR_ST 0x00800000 /* Store Operation */ + +#if defined(CONFIG_MPC86xx) +#define SPRN_MSSCR0 0x3f6 +#define SPRN_MSSSR0 0x3f7 +#endif + +/* Short-hand versions for a number of the above SPRNs */ + +#define CTR SPRN_CTR /* Counter Register */ +#define DAR SPRN_DAR /* Data Address Register */ +#define DABR SPRN_DABR /* Data Address Breakpoint Register */ +#define DAC1 SPRN_DAC1 /* Data Address Register 1 */ +#define DAC2 SPRN_DAC2 /* Data Address Register 2 */ +#define DBAT0L SPRN_DBAT0L /* Data BAT 0 Lower Register */ +#define DBAT0U SPRN_DBAT0U /* Data BAT 0 Upper Register */ +#define DBAT1L SPRN_DBAT1L /* Data BAT 1 Lower Register */ +#define DBAT1U SPRN_DBAT1U /* Data BAT 1 Upper Register */ +#define DBAT2L SPRN_DBAT2L /* Data BAT 2 Lower Register */ +#define DBAT2U SPRN_DBAT2U /* Data BAT 2 Upper Register */ +#define DBAT3L SPRN_DBAT3L /* Data BAT 3 Lower Register */ +#define DBAT3U SPRN_DBAT3U /* Data BAT 3 Upper Register */ +#define DBAT4L SPRN_DBAT4L /* Data BAT 4 Lower Register */ +#define DBAT4U SPRN_DBAT4U /* Data BAT 4 Upper Register */ +#define DBAT5L SPRN_DBAT5L /* Data BAT 5 Lower Register */ +#define DBAT5U SPRN_DBAT5U /* Data BAT 5 Upper Register */ +#define DBAT6L SPRN_DBAT6L /* Data BAT 6 Lower Register */ +#define DBAT6U SPRN_DBAT6U /* Data BAT 6 Upper Register */ +#define DBAT7L SPRN_DBAT7L /* Data BAT 7 Lower Register */ +#define DBAT7U SPRN_DBAT7U /* Data BAT 7 Upper Register */ +#define DBCR0 SPRN_DBCR0 /* Debug Control Register 0 */ +#define DBCR1 SPRN_DBCR1 /* Debug Control Register 1 */ +#define DBSR SPRN_DBSR /* Debug Status Register */ +#define DCMP SPRN_DCMP /* Data TLB Compare Register */ +#define DEC SPRN_DEC /* Decrement Register */ +#define DMISS SPRN_DMISS /* Data TLB Miss Register */ +#define DSISR SPRN_DSISR /* Data Storage Interrupt Status Register */ +#define EAR SPRN_EAR /* External Address Register */ +#define ESR SPRN_ESR /* Exception Syndrome Register */ +#define HASH1 SPRN_HASH1 /* Primary Hash Address Register */ +#define HASH2 SPRN_HASH2 /* Secondary Hash Address Register */ +#define HID0 SPRN_HID0 /* Hardware Implementation Register 0 */ +#define HID1 SPRN_HID1 /* Hardware Implementation Register 1 */ +#define IABR SPRN_IABR /* Instruction Address Breakpoint Register */ +#define IAC1 SPRN_IAC1 /* Instruction Address Register 1 */ +#define IAC2 SPRN_IAC2 /* Instruction Address Register 2 */ +#define IBAT0L SPRN_IBAT0L /* Instruction BAT 0 Lower Register */ +#define IBAT0U SPRN_IBAT0U /* Instruction BAT 0 Upper Register */ +#define IBAT1L SPRN_IBAT1L /* Instruction BAT 1 Lower Register */ +#define IBAT1U SPRN_IBAT1U /* Instruction BAT 1 Upper Register */ +#define IBAT2L SPRN_IBAT2L /* Instruction BAT 2 Lower Register */ +#define IBAT2U SPRN_IBAT2U /* Instruction BAT 2 Upper Register */ +#define IBAT3L SPRN_IBAT3L /* Instruction BAT 3 Lower Register */ +#define IBAT3U SPRN_IBAT3U /* Instruction BAT 3 Upper Register */ +#define IBAT4L SPRN_IBAT4L /* Instruction BAT 4 Lower Register */ +#define IBAT4U SPRN_IBAT4U /* Instruction BAT 4 Upper Register */ +#define IBAT5L SPRN_IBAT5L /* Instruction BAT 5 Lower Register */ +#define IBAT5U SPRN_IBAT5U /* Instruction BAT 5 Upper Register */ +#define IBAT6L SPRN_IBAT6L /* Instruction BAT 6 Lower Register */ +#define IBAT6U SPRN_IBAT6U /* Instruction BAT 6 Upper Register */ +#define IBAT7L SPRN_IBAT7L /* Instruction BAT 7 Lower Register */ +#define IBAT7U SPRN_IBAT7U /* Instruction BAT 7 Lower Register */ +#define ICMP SPRN_ICMP /* Instruction TLB Compare Register */ +#define IMISS SPRN_IMISS /* Instruction TLB Miss Register */ +#define IMMR SPRN_IMMR /* PPC 860/821 Internal Memory Map Register */ +#define LDSTCR SPRN_LDSTCR /* Load/Store Control Register */ +#define L2CR SPRN_L2CR /* PPC 750 L2 control register */ +#define LR SPRN_LR +#define MBAR SPRN_MBAR /* System memory base address */ +#if defined(CONFIG_MPC86xx) +#define MSSCR0 SPRN_MSSCR0 +#endif +#if defined(CONFIG_E500) || defined(CONFIG_MPC86xx) +#define PIR SPRN_PIR +#endif +#define SVR SPRN_SVR /* System-On-Chip Version Register */ +#define PVR SPRN_PVR /* Processor Version */ +#define RPA SPRN_RPA /* Required Physical Address Register */ +#define SDR1 SPRN_SDR1 /* MMU hash base register */ +#define SPR0 SPRN_SPRG0 /* Supervisor Private Registers */ +#define SPR1 SPRN_SPRG1 +#define SPR2 SPRN_SPRG2 +#define SPR3 SPRN_SPRG3 +#define SPRG0 SPRN_SPRG0 +#define SPRG1 SPRN_SPRG1 +#define SPRG2 SPRN_SPRG2 +#define SPRG3 SPRN_SPRG3 +#define SPRG4 SPRN_SPRG4 +#define SPRG5 SPRN_SPRG5 +#define SPRG6 SPRN_SPRG6 +#define SPRG7 SPRN_SPRG7 +#define SRR0 SPRN_SRR0 /* Save and Restore Register 0 */ +#define SRR1 SPRN_SRR1 /* Save and Restore Register 1 */ +#define SRR2 SPRN_SRR2 /* Save and Restore Register 2 */ +#define SRR3 SPRN_SRR3 /* Save and Restore Register 3 */ +#define SVR SPRN_SVR /* System Version Register */ +#define TBRL SPRN_TBRL /* Time Base Read Lower Register */ +#define TBRU SPRN_TBRU /* Time Base Read Upper Register */ +#define TBWL SPRN_TBWL /* Time Base Write Lower Register */ +#define TBWU SPRN_TBWU /* Time Base Write Upper Register */ +#define TCR SPRN_TCR /* Timer Control Register */ +#define TSR SPRN_TSR /* Timer Status Register */ +#define ICTC 1019 +#define THRM1 SPRN_THRM1 /* Thermal Management Register 1 */ +#define THRM2 SPRN_THRM2 /* Thermal Management Register 2 */ +#define THRM3 SPRN_THRM3 /* Thermal Management Register 3 */ +#define XER SPRN_XER + +#define DECAR SPRN_DECAR +#define CSRR0 SPRN_CSRR0 +#define CSRR1 SPRN_CSRR1 +#define IVPR SPRN_IVPR +#define USPRG0 SPRN_USPRG +#define SPRG4R SPRN_SPRG4R +#define SPRG5R SPRN_SPRG5R +#define SPRG6R SPRN_SPRG6R +#define SPRG7R SPRN_SPRG7R +#define SPRG4W SPRN_SPRG4W +#define SPRG5W SPRN_SPRG5W +#define SPRG6W SPRN_SPRG6W +#define SPRG7W SPRN_SPRG7W +#define DEAR SPRN_DEAR +#define DBCR2 SPRN_DBCR2 +#define IAC3 SPRN_IAC3 +#define IAC4 SPRN_IAC4 +#define DVC1 SPRN_DVC1 +#define DVC2 SPRN_DVC2 +#define IVOR0 SPRN_IVOR0 +#define IVOR1 SPRN_IVOR1 +#define IVOR2 SPRN_IVOR2 +#define IVOR3 SPRN_IVOR3 +#define IVOR4 SPRN_IVOR4 +#define IVOR5 SPRN_IVOR5 +#define IVOR6 SPRN_IVOR6 +#define IVOR7 SPRN_IVOR7 +#define IVOR8 SPRN_IVOR8 +#define IVOR9 SPRN_IVOR9 +#define IVOR10 SPRN_IVOR10 +#define IVOR11 SPRN_IVOR11 +#define IVOR12 SPRN_IVOR12 +#define IVOR13 SPRN_IVOR13 +#define IVOR14 SPRN_IVOR14 +#define IVOR15 SPRN_IVOR15 +#define IVOR32 SPRN_IVOR32 +#define IVOR33 SPRN_IVOR33 +#define IVOR34 SPRN_IVOR34 +#define IVOR35 SPRN_IVOR35 +#define MCSRR0 SPRN_MCSRR0 +#define MCSRR1 SPRN_MCSRR1 +#define L1CSR0 SPRN_L1CSR0 +#define L1CSR1 SPRN_L1CSR1 +#define L1CSR2 SPRN_L1CSR2 +#define L1CFG0 SPRN_L1CFG0 +#define L1CFG1 SPRN_L1CFG1 +#define L2CFG0 SPRN_L2CFG0 +#define L2CSR0 SPRN_L2CSR0 +#define L2CSR1 SPRN_L2CSR1 +#define MCSR SPRN_MCSR +#define MMUCSR0 SPRN_MMUCSR0 +#define BUCSR SPRN_BUCSR +#define PID0 SPRN_PID +#define PID1 SPRN_PID1 +#define PID2 SPRN_PID2 +#define MAS0 SPRN_MAS0 +#define MAS1 SPRN_MAS1 +#define MAS2 SPRN_MAS2 +#define MAS3 SPRN_MAS3 +#define MAS4 SPRN_MAS4 +#define MAS5 SPRN_MAS5 +#define MAS6 SPRN_MAS6 +#define MAS7 SPRN_MAS7 +#define MAS8 SPRN_MAS8 + +#if defined(CONFIG_4xx) || defined(CONFIG_44x) || defined(CONFIG_MPC85xx) +#define DAR_DEAR DEAR +#else +#define DAR_DEAR DAR +#endif + +/* Device Control Registers */ + +#define DCRN_BEAR 0x090 /* Bus Error Address Register */ +#define DCRN_BESR 0x091 /* Bus Error Syndrome Register */ +#define BESR_DSES 0x80000000 /* Data-Side Error Status */ +#define BESR_DMES 0x40000000 /* DMA Error Status */ +#define BESR_RWS 0x20000000 /* Read/Write Status */ +#define BESR_ETMASK 0x1C000000 /* Error Type */ +#define ET_PROT 0 +#define ET_PARITY 1 +#define ET_NCFG 2 +#define ET_BUSERR 4 +#define ET_BUSTO 6 +#define DCRN_DMACC0 0x0C4 /* DMA Chained Count Register 0 */ +#define DCRN_DMACC1 0x0CC /* DMA Chained Count Register 1 */ +#define DCRN_DMACC2 0x0D4 /* DMA Chained Count Register 2 */ +#define DCRN_DMACC3 0x0DC /* DMA Chained Count Register 3 */ +#define DCRN_DMACR0 0x0C0 /* DMA Channel Control Register 0 */ +#define DCRN_DMACR1 0x0C8 /* DMA Channel Control Register 1 */ +#define DCRN_DMACR2 0x0D0 /* DMA Channel Control Register 2 */ +#define DCRN_DMACR3 0x0D8 /* DMA Channel Control Register 3 */ +#define DCRN_DMACT0 0x0C1 /* DMA Count Register 0 */ +#define DCRN_DMACT1 0x0C9 /* DMA Count Register 1 */ +#define DCRN_DMACT2 0x0D1 /* DMA Count Register 2 */ +#define DCRN_DMACT3 0x0D9 /* DMA Count Register 3 */ +#define DCRN_DMADA0 0x0C2 /* DMA Destination Address Register 0 */ +#define DCRN_DMADA1 0x0CA /* DMA Destination Address Register 1 */ +#define DCRN_DMADA2 0x0D2 /* DMA Destination Address Register 2 */ +#define DCRN_DMADA3 0x0DA /* DMA Destination Address Register 3 */ +#define DCRN_DMASA0 0x0C3 /* DMA Source Address Register 0 */ +#define DCRN_DMASA1 0x0CB /* DMA Source Address Register 1 */ +#define DCRN_DMASA2 0x0D3 /* DMA Source Address Register 2 */ +#define DCRN_DMASA3 0x0DB /* DMA Source Address Register 3 */ +#define DCRN_DMASR 0x0E0 /* DMA Status Register */ +#define DCRN_EXIER 0x042 /* External Interrupt Enable Register */ +#define EXIER_CIE 0x80000000 /* Critical Interrupt Enable */ +#define EXIER_SRIE 0x08000000 /* Serial Port Rx Int. Enable */ +#define EXIER_STIE 0x04000000 /* Serial Port Tx Int. Enable */ +#define EXIER_JRIE 0x02000000 /* JTAG Serial Port Rx Int. Enable */ +#define EXIER_JTIE 0x01000000 /* JTAG Serial Port Tx Int. Enable */ +#define EXIER_D0IE 0x00800000 /* DMA Channel 0 Interrupt Enable */ +#define EXIER_D1IE 0x00400000 /* DMA Channel 1 Interrupt Enable */ +#define EXIER_D2IE 0x00200000 /* DMA Channel 2 Interrupt Enable */ +#define EXIER_D3IE 0x00100000 /* DMA Channel 3 Interrupt Enable */ +#define EXIER_E0IE 0x00000010 /* External Interrupt 0 Enable */ +#define EXIER_E1IE 0x00000008 /* External Interrupt 1 Enable */ +#define EXIER_E2IE 0x00000004 /* External Interrupt 2 Enable */ +#define EXIER_E3IE 0x00000002 /* External Interrupt 3 Enable */ +#define EXIER_E4IE 0x00000001 /* External Interrupt 4 Enable */ +#define DCRN_EXISR 0x040 /* External Interrupt Status Register */ +#define DCRN_IOCR 0x0A0 /* Input/Output Configuration Register */ +#define IOCR_E0TE 0x80000000 +#define IOCR_E0LP 0x40000000 +#define IOCR_E1TE 0x20000000 +#define IOCR_E1LP 0x10000000 +#define IOCR_E2TE 0x08000000 +#define IOCR_E2LP 0x04000000 +#define IOCR_E3TE 0x02000000 +#define IOCR_E3LP 0x01000000 +#define IOCR_E4TE 0x00800000 +#define IOCR_E4LP 0x00400000 +#define IOCR_EDT 0x00080000 +#define IOCR_SOR 0x00040000 +#define IOCR_EDO 0x00008000 +#define IOCR_2XC 0x00004000 +#define IOCR_ATC 0x00002000 +#define IOCR_SPD 0x00001000 +#define IOCR_BEM 0x00000800 +#define IOCR_PTD 0x00000400 +#define IOCR_ARE 0x00000080 +#define IOCR_DRC 0x00000020 +#define IOCR_RDM(x) (((x) & 0x3) << 3) +#define IOCR_TCS 0x00000004 +#define IOCR_SCS 0x00000002 +#define IOCR_SPC 0x00000001 + +/* System-On-Chip Version Register */ + +/* System-On-Chip Version Register (SVR) field extraction */ + +#define SVR_VER(svr) (((svr) >> 16) & 0xFFFF) /* Version field */ +#define SVR_REV(svr) (((svr) >> 0) & 0xFFFF) /* Revision field */ + +#define SVR_CID(svr) (((svr) >> 28) & 0x0F) /* Company or manufacturer ID */ +#define SVR_SOCOP(svr) (((svr) >> 22) & 0x3F) /* SOC integration options */ +#define SVR_SID(svr) (((svr) >> 16) & 0x3F) /* SOC ID */ +#define SVR_PROC(svr) (((svr) >> 12) & 0x0F) /* Process revision field */ +#define SVR_MFG(svr) (((svr) >> 8) & 0x0F) /* Manufacturing revision */ +#define SVR_MJREV(svr) (((svr) >> 4) & 0x0F) /* Major SOC design revision indicator */ +#define SVR_MNREV(svr) (((svr) >> 0) & 0x0F) /* Minor SOC design revision indicator */ + +/* Processor Version Register */ + +/* Processor Version Register (PVR) field extraction */ + +#define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */ +#define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revison field */ + +/* + * AMCC has further subdivided the standard PowerPC 16-bit version and + * revision subfields of the PVR for the PowerPC 403s into the following: + */ + +#define PVR_FAM(pvr) (((pvr) >> 20) & 0xFFF) /* Family field */ +#define PVR_MEM(pvr) (((pvr) >> 16) & 0xF) /* Member field */ +#define PVR_CORE(pvr) (((pvr) >> 12) & 0xF) /* Core field */ +#define PVR_CFG(pvr) (((pvr) >> 8) & 0xF) /* Configuration field */ +#define PVR_MAJ(pvr) (((pvr) >> 4) & 0xF) /* Major revision field */ +#define PVR_MIN(pvr) (((pvr) >> 0) & 0xF) /* Minor revision field */ + +/* e600 core PVR fields */ + +#define PVR_E600_VER(pvr) (((pvr) >> 15) & 0xFFFF) /* Version/type */ +#define PVR_E600_TECH(pvr) (((pvr) >> 12) & 0xF) /* Technology */ +#define PVR_E600_MAJ(pvr) (((pvr) >> 8) & 0xF) /* Major revision */ +#define PVR_E600_MIN(pvr) (((pvr) >> 0) & 0xFF) /* Minor revision */ + +/* Processor Version Numbers */ + +#define PVR_403GA 0x00200000 +#define PVR_403GB 0x00200100 +#define PVR_403GC 0x00200200 +#define PVR_403GCX 0x00201400 +#define PVR_405GP 0x40110000 +#define PVR_405GP_RB 0x40110040 +#define PVR_405GP_RC 0x40110082 +#define PVR_405GP_RD 0x401100C4 +#define PVR_405GP_RE 0x40110145 /* same as pc405cr rev c */ +#define PVR_405CR_RA 0x40110041 +#define PVR_405CR_RB 0x401100C5 +#define PVR_405CR_RC 0x40110145 /* same as pc405gp rev e */ +#define PVR_405EP_RA 0x51210950 +#define PVR_405GPR_RB 0x50910951 +#define PVR_405EZ_RA 0x41511460 +#define PVR_405EXR2_RA 0x12911471 /* 405EXr rev A/B without Security */ +#define PVR_405EX1_RA 0x12911477 /* 405EX rev A/B with Security */ +#define PVR_405EXR1_RC 0x1291147B /* 405EXr rev C with Security */ +#define PVR_405EXR2_RC 0x12911479 /* 405EXr rev C without Security */ +#define PVR_405EX1_RC 0x1291147F /* 405EX rev C with Security */ +#define PVR_405EX2_RC 0x1291147D /* 405EX rev C without Security */ +#define PVR_405EXR1_RD 0x12911472 /* 405EXr rev D with Security */ +#define PVR_405EXR2_RD 0x12911470 /* 405EXr rev D without Security */ +#define PVR_405EX1_RD 0x12911475 /* 405EX rev D with Security */ +#define PVR_405EX2_RD 0x12911473 /* 405EX rev D without Security */ +#define PVR_440GP_RB 0x40120440 +#define PVR_440GP_RC 0x40120481 +#define PVR_440EP_RA 0x42221850 +#define PVR_440EP_RB 0x422218D3 /* 440EP rev B and 440GR rev A have same PVR */ +#define PVR_440EP_RC 0x422218D4 /* 440EP rev C and 440GR rev B have same PVR */ +#define PVR_440GR_RA 0x422218D3 /* 440EP rev B and 440GR rev A have same PVR */ +#define PVR_440GR_RB 0x422218D4 /* 440EP rev C and 440GR rev B have same PVR */ +#define PVR_440EPX1_RA 0x216218D0 /* 440EPX rev A with Security / Kasumi */ +#define PVR_440EPX2_RA 0x216218D4 /* 440EPX rev A without Security / Kasumi */ +#define PVR_440GRX1_RA 0x216218D0 /* 440GRX rev A with Security / Kasumi */ +#define PVR_440GRX2_RA 0x216218D4 /* 440GRX rev A without Security / Kasumi */ +#define PVR_440GX_RA 0x51B21850 +#define PVR_440GX_RB 0x51B21851 +#define PVR_440GX_RC 0x51B21892 +#define PVR_440GX_RF 0x51B21894 +#define PVR_405EP_RB 0x51210950 +#define PVR_440SP_6_RAB 0x53221850 /* 440SP rev A&B with RAID 6 support enabled */ +#define PVR_440SP_RAB 0x53321850 /* 440SP rev A&B without RAID 6 support */ +#define PVR_440SP_6_RC 0x53221891 /* 440SP rev C with RAID 6 support enabled */ +#define PVR_440SP_RC 0x53321891 /* 440SP rev C without RAID 6 support */ +#define PVR_440SPe_6_RA 0x53421890 /* 440SPe rev A with RAID 6 support enabled */ +#define PVR_440SPe_RA 0x53521890 /* 440SPe rev A without RAID 6 support */ +#define PVR_440SPe_6_RB 0x53421891 /* 440SPe rev B with RAID 6 support enabled */ +#define PVR_440SPe_RB 0x53521891 /* 440SPe rev B without RAID 6 support */ +#define PVR_460EX_SE_RA 0x130218A2 /* 460EX rev A with Security Engine */ +#define PVR_460EX_RA 0x130218A3 /* 460EX rev A without Security Engine */ +#define PVR_460EX_RB 0x130218A4 /* 460EX rev B with and without Sec Eng*/ +#define PVR_460GT_SE_RA 0x130218A0 /* 460GT rev A with Security Engine */ +#define PVR_460GT_RA 0x130218A1 /* 460GT rev A without Security Engine */ +#define PVR_460GT_RB 0x130218A5 /* 460GT rev B with and without Sec Eng*/ +#define PVR_460SX_RA 0x13541800 /* 460SX rev A */ +#define PVR_460SX_RA_V1 0x13541801 /* 460SX rev A Variant 1 Security disabled */ +#define PVR_460GX_RA 0x13541802 /* 460GX rev A */ +#define PVR_460GX_RA_V1 0x13541803 /* 460GX rev A Variant 1 Security disabled */ +#define PVR_601 0x00010000 +#define PVR_602 0x00050000 +#define PVR_603 0x00030000 +#define PVR_603e 0x00060000 +#define PVR_603ev 0x00070000 +#define PVR_603r 0x00071000 +#define PVR_604 0x00040000 +#define PVR_604e 0x00090000 +#define PVR_604r 0x000A0000 +#define PVR_620 0x00140000 +#define PVR_740 0x00080000 +#define PVR_750 PVR_740 +#define PVR_740P 0x10080000 +#define PVR_750P PVR_740P +#define PVR_7400 0x000C0000 +#define PVR_7410 0x800C0000 +#define PVR_7450 0x80000000 + +#define PVR_85xx 0x80200000 +#define PVR_85xx_REV1 (PVR_85xx | 0x0010) +#define PVR_85xx_REV2 (PVR_85xx | 0x0020) + +#define PVR_86xx 0x80040000 + +#define PVR_VIRTEX5 0x7ff21912 + +/* + * For the 8xx processors, all of them report the same PVR family for + * the PowerPC core. The various versions of these processors must be + * differentiated by the version number in the Communication Processor + * Module (CPM). + */ +#define PVR_821 0x00500000 +#define PVR_823 PVR_821 +#define PVR_850 PVR_821 +#define PVR_860 PVR_821 +#define PVR_7400 0x000C0000 +#define PVR_8240 0x00810100 + +/* + * PowerQUICC II family processors report different PVR values depending + * on silicon process (HiP3, HiP4, HiP7, etc.) + */ +#define PVR_8260 PVR_8240 +#define PVR_8260_HIP3 0x00810101 +#define PVR_8260_HIP4 0x80811014 +#define PVR_8260_HIP7 0x80822011 +#define PVR_8260_HIP7R1 0x80822013 +#define PVR_8260_HIP7RA 0x80822014 + +/* + * MPC 52xx + */ +#define PVR_5200 0x80822011 +#define PVR_5200B 0x80822014 + +/* + * System Version Register + */ + +/* System Version Register (SVR) field extraction */ + +#define SVR_VER(svr) (((svr) >> 16) & 0xFFFF) /* Version field */ +#define SVR_REV(svr) (((svr) >> 0) & 0xFFFF) /* Revison field */ + +#define SVR_SUBVER(svr) (((svr) >> 8) & 0xFF) /* Process/MFG sub-version */ + +#define SVR_FAM(svr) (((svr) >> 20) & 0xFFF) /* Family field */ +#define SVR_MEM(svr) (((svr) >> 16) & 0xF) /* Member field */ + +#define SVR_MAJ(svr) (((svr) >> 4) & 0xF) /* Major revision field*/ +#define SVR_MIN(svr) (((svr) >> 0) & 0xF) /* Minor revision field*/ + +/* Some parts define SVR[0:23] as the SOC version */ +#define SVR_SOC_VER(svr) (((svr) >> 8) & 0xFFFFFF) /* SOC Version fields */ + +/* whether MPC8xxxE (i.e. has SEC) */ +#if defined(CONFIG_MPC85xx) +#define IS_E_PROCESSOR(svr) (svr & 0x80000) +#else +#if defined(CONFIG_MPC83xx) +#define IS_E_PROCESSOR(spridr) (!(spridr & 0x00010000)) +#endif +#endif + +#define IS_SVR_REV(svr, maj, min) \ + ((SVR_MAJ(svr) == maj) && (SVR_MIN(svr) == min)) + +/* + * SVR_SOC_VER() Version Values + */ + +#define SVR_8533 0x803400 +#define SVR_8533_E 0x803C00 +#define SVR_8535 0x803701 +#define SVR_8535_E 0x803F01 +#define SVR_8536 0x803700 +#define SVR_8536_E 0x803F00 +#define SVR_8540 0x803000 +#define SVR_8541 0x807200 +#define SVR_8541_E 0x807A00 +#define SVR_8543 0x803200 +#define SVR_8543_E 0x803A00 +#define SVR_8544 0x803401 +#define SVR_8544_E 0x803C01 +#define SVR_8545 0x803102 +#define SVR_8545_E 0x803902 +#define SVR_8547_E 0x803901 +#define SVR_8548 0x803100 +#define SVR_8548_E 0x803900 +#define SVR_8555 0x807100 +#define SVR_8555_E 0x807900 +#define SVR_8560 0x807000 +#define SVR_8567 0x807600 +#define SVR_8567_E 0x807E00 +#define SVR_8568 0x807500 +#define SVR_8568_E 0x807D00 +#define SVR_8569 0x808000 +#define SVR_8569_E 0x808800 +#define SVR_8572 0x80E000 +#define SVR_8572_E 0x80E800 +#define SVR_P1011 0x80E500 +#define SVR_P1011_E 0x80ED00 +#define SVR_P1012 0x80E501 +#define SVR_P1012_E 0x80ED01 +#define SVR_P1013 0x80E700 +#define SVR_P1013_E 0x80EF00 +#define SVR_P1020 0x80E400 +#define SVR_P1020_E 0x80EC00 +#define SVR_P1021 0x80E401 +#define SVR_P1021_E 0x80EC01 +#define SVR_P1022 0x80E600 +#define SVR_P1022_E 0x80EE00 +#define SVR_P2010 0x80E300 +#define SVR_P2010_E 0x80EB00 +#define SVR_P2020 0x80E200 +#define SVR_P2020_E 0x80EA00 +#define SVR_P4040 0x820100 +#define SVR_P4040_E 0x820900 +#define SVR_P4080 0x820000 +#define SVR_P4080_E 0x820800 + +#define SVR_8610 0x80A000 +#define SVR_8641 0x809000 +#define SVR_8641D 0x809001 + +#define SVR_Unknown 0xFFFFFF + +#define _GLOBAL(n)\ + .globl n;\ +n: + +/* Macros for setting and retrieving special purpose registers */ + +#define stringify(s) tostring(s) +#define tostring(s) #s + +#define mfdcr(rn) ({unsigned int rval; \ + asm volatile("mfdcr %0," stringify(rn) \ + : "=r" (rval)); rval;}) +#define mtdcr(rn, v) asm volatile("mtdcr " stringify(rn) ",%0" : : "r" (v)) + +#define mfmsr() ({unsigned int rval; \ + asm volatile("mfmsr %0" : "=r" (rval)); rval;}) +#define mtmsr(v) asm volatile("mtmsr %0" : : "r" (v)) + +#define mfspr(rn) ({unsigned int rval; \ + asm volatile("mfspr %0," stringify(rn) \ + : "=r" (rval)); rval;}) +#define mtspr(rn, v) asm volatile("mtspr " stringify(rn) ",%0" : : "r" (v)) + +#define tlbie(v) asm volatile("tlbie %0 \n sync" : : "r" (v)) + +/* Segment Registers */ + +#define SR0 0 +#define SR1 1 +#define SR2 2 +#define SR3 3 +#define SR4 4 +#define SR5 5 +#define SR6 6 +#define SR7 7 +#define SR8 8 +#define SR9 9 +#define SR10 10 +#define SR11 11 +#define SR12 12 +#define SR13 13 +#define SR14 14 +#define SR15 15 + +#ifndef __ASSEMBLY__ + +struct cpu_type { + char name[15]; + u32 soc_ver; + u32 num_cores; +}; + +struct cpu_type *identify_cpu(u32 ver); + +#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) +#define CPU_TYPE_ENTRY(n, v, nc) \ + { .name = #n, .soc_ver = SVR_##v, .num_cores = (nc), } +#else +#if defined(CONFIG_MPC83xx) +#define CPU_TYPE_ENTRY(x) {#x, SPR_##x} +#endif +#endif + + +#ifndef CONFIG_MACH_SPECIFIC +extern int _machine; +extern int have_of; +#endif /* CONFIG_MACH_SPECIFIC */ + +/* what kind of prep workstation we are */ +extern int _prep_type; +/* + * This is used to identify the board type from a given PReP board + * vendor. Board revision is also made available. + */ +extern unsigned char ucSystemType; +extern unsigned char ucBoardRev; +extern unsigned char ucBoardRevMaj, ucBoardRevMin; + +struct task_struct; +void start_thread(struct pt_regs *regs, unsigned long nip, unsigned long sp); +void release_thread(struct task_struct *); + +/* + * Create a new kernel thread. + */ +extern long kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); + +/* + * Bus types + */ +#define EISA_bus 0 +#define EISA_bus__is_a_macro /* for versions in ksyms.c */ +#define MCA_bus 0 +#define MCA_bus__is_a_macro /* for versions in ksyms.c */ + +/* Lazy FPU handling on uni-processor */ +extern struct task_struct *last_task_used_math; +extern struct task_struct *last_task_used_altivec; + +/* + * this is the minimum allowable io space due to the location + * of the io areas on prep (first one at 0x80000000) but + * as soon as I get around to remapping the io areas with the BATs + * to match the mac we can raise this. -- Cort + */ +#define TASK_SIZE (0x80000000UL) + +/* This decides where the kernel will search for a free chunk of vm + * space during mmap's. + */ +#define TASK_UNMAPPED_BASE (TASK_SIZE / 8 * 3) + +typedef struct { + unsigned long seg; +} mm_segment_t; + +struct thread_struct { + unsigned long ksp; /* Kernel stack pointer */ + unsigned long wchan; /* Event task is sleeping on */ + struct pt_regs *regs; /* Pointer to saved register state */ + mm_segment_t fs; /* for get_fs() validation */ + void *pgdir; /* root of page-table tree */ + signed long last_syscall; + double fpr[32]; /* Complete floating point set */ + unsigned long fpscr_pad; /* fpr ... fpscr must be contiguous */ + unsigned long fpscr; /* Floating point status */ +#ifdef CONFIG_ALTIVEC + vector128 vr[32]; /* Complete AltiVec set */ + vector128 vscr; /* AltiVec status */ + unsigned long vrsave; +#endif /* CONFIG_ALTIVEC */ +}; + +#define INIT_SP (sizeof(init_stack) + (unsigned long) &init_stack) + +#define INIT_THREAD { \ + INIT_SP, /* ksp */ \ + 0, /* wchan */ \ + (struct pt_regs *)INIT_SP - 1, /* regs */ \ + KERNEL_DS, /*fs*/ \ + swapper_pg_dir, /* pgdir */ \ + 0, /* last_syscall */ \ + {0}, 0, 0 \ +} + +/* + * Note: the vm_start and vm_end fields here should *not* + * be in kernel space. (Could vm_end == vm_start perhaps?) + */ +#define INIT_MMAP { &init_mm, 0, 0x1000, NULL, \ + PAGE_SHARED, VM_READ | VM_WRITE | VM_EXEC, \ + 1, NULL, NULL } + +/* + * Return saved PC of a blocked thread. For now, this is the "user" PC + */ +static inline unsigned long thread_saved_pc(struct thread_struct *t) +{ + return (t->regs) ? t->regs->nip : 0; +} + +#define copy_segments(tsk, mm) do { } while (0) +#define release_segments(mm) do { } while (0) +#define forget_segments() do { } while (0) + +unsigned long get_wchan(struct task_struct *p); + +#define KSTK_EIP(tsk) ((tsk)->thread.regs->nip) +#define KSTK_ESP(tsk) ((tsk)->thread.regs->gpr[1]) + +/* + * NOTE! The task struct and the stack go together + */ +#define THREAD_SIZE (2*PAGE_SIZE) +#define alloc_task_struct() \ + ((struct task_struct *) __get_free_pages(GFP_KERNEL,1)) +#define free_task_struct(p) free_pages((unsigned long)(p),1) +#define get_task_struct(tsk) atomic_inc(&mem_map[MAP_NR(tsk)].count) + +/* in process.c - for early bootup debug -- Cort */ +int ll_printk(const char *, ...); +void ll_puts(const char *); + +#define init_task (init_task_union.task) +#define init_stack (init_task_union.stack) + +/* In misc.c */ +void _nmask_and_or_msr(unsigned long nmask, unsigned long or_val); + +#endif /* ndef ASSEMBLY*/ + +#ifdef CONFIG_MACH_SPECIFIC +#if defined(CONFIG_8xx) +#define _machine _MACH_8xx +#define have_of 0 +#elif defined(CONFIG_OAK) +#define _machine _MACH_oak +#define have_of 0 +#elif defined(CONFIG_WALNUT) +#define _machine _MACH_walnut +#define have_of 0 +#elif defined(CONFIG_APUS) +#define _machine _MACH_apus +#define have_of 0 +#elif defined(CONFIG_GEMINI) +#define _machine _MACH_gemini +#define have_of 0 +#elif defined(CONFIG_8260) +#define _machine _MACH_8260 +#define have_of 0 +#elif defined(CONFIG_SANDPOINT) +#define _machine _MACH_sandpoint +#elif defined(CONFIG_HIDDEN_DRAGON) +#define _machine _MACH_hidden_dragon +#define have_of 0 +#else +#error "Machine not defined correctly" +#endif +#endif /* CONFIG_MACH_SPECIFIC */ + +#endif /* __ASM_PPC_PROCESSOR_H */ diff --git a/arch/ppc/include/asm/ptrace.h b/arch/ppc/include/asm/ptrace.h new file mode 100644 index 0000000..196613b --- /dev/null +++ b/arch/ppc/include/asm/ptrace.h @@ -0,0 +1,107 @@ +#ifndef _PPC_PTRACE_H +#define _PPC_PTRACE_H + +/* + * This struct defines the way the registers are stored on the + * kernel stack during a system call or other kernel entry. + * + * this should only contain volatile regs + * since we can keep non-volatile in the thread_struct + * should set this up when only volatiles are saved + * by intr code. + * + * Since this is going on the stack, *CARE MUST BE TAKEN* to insure + * that the overall structure is a multiple of 16 bytes in length. + * + * Note that the offsets of the fields in this struct correspond with + * the PT_* values below. This simplifies arch/ppc/kernel/ptrace.c. + */ + +#include <linux/config.h> + +#ifndef __ASSEMBLY__ +#ifdef CONFIG_PPC64BRIDGE +#define PPC_REG unsigned long /*long*/ +#else +#define PPC_REG unsigned long +#endif +struct pt_regs { + PPC_REG gpr[32]; + PPC_REG nip; + PPC_REG msr; + PPC_REG orig_gpr3; /* Used for restarting system calls */ + PPC_REG ctr; + PPC_REG link; + PPC_REG xer; + PPC_REG ccr; + PPC_REG mq; /* 601 only (not used at present) */ + /* Used on APUS to hold IPL value. */ + PPC_REG trap; /* Reason for being here */ + PPC_REG dar; /* Fault registers */ + PPC_REG dsisr; + PPC_REG result; /* Result of a system call */ +}; +#endif + +#define STACK_FRAME_OVERHEAD 16 /* size of minimum stack frame */ + +/* Size of stack frame allocated when calling signal handler. */ +#define __SIGNAL_FRAMESIZE 64 + +#define instruction_pointer(regs) ((regs)->nip) +#define user_mode(regs) (((regs)->msr & MSR_PR) != 0) + +/* + * Offsets used by 'ptrace' system call interface. + * These can't be changed without breaking binary compatibility + * with MkLinux, etc. + */ +#define PT_R0 0 +#define PT_R1 1 +#define PT_R2 2 +#define PT_R3 3 +#define PT_R4 4 +#define PT_R5 5 +#define PT_R6 6 +#define PT_R7 7 +#define PT_R8 8 +#define PT_R9 9 +#define PT_R10 10 +#define PT_R11 11 +#define PT_R12 12 +#define PT_R13 13 +#define PT_R14 14 +#define PT_R15 15 +#define PT_R16 16 +#define PT_R17 17 +#define PT_R18 18 +#define PT_R19 19 +#define PT_R20 20 +#define PT_R21 21 +#define PT_R22 22 +#define PT_R23 23 +#define PT_R24 24 +#define PT_R25 25 +#define PT_R26 26 +#define PT_R27 27 +#define PT_R28 28 +#define PT_R29 29 +#define PT_R30 30 +#define PT_R31 31 + +#define PT_NIP 32 +#define PT_MSR 33 +#ifdef __KERNEL__ +#define PT_ORIG_R3 34 +#endif +#define PT_CTR 35 +#define PT_LNK 36 +#define PT_XER 37 +#define PT_CCR 38 +#define PT_MQ 39 + +#define PT_FPR0 48 /* each FP reg occupies 2 slots in this space */ +#define PT_FPR31 (PT_FPR0 + 2*31) +#define PT_FPSCR (PT_FPR0 + 2*32 + 1) + +#endif diff --git a/arch/ppc/include/asm/residual.h b/arch/ppc/include/asm/residual.h new file mode 100644 index 0000000..dc85edb --- /dev/null +++ b/arch/ppc/include/asm/residual.h @@ -0,0 +1,331 @@ +/* 7/18/95 */ +/*----------------------------------------------------------------------------*/ +/* Residual Data header definitions and prototypes */ +/*----------------------------------------------------------------------------*/ + +/* Structure map for RESIDUAL on PowerPC Reference Platform */ +/* residual.h - Residual data structure passed in r3. */ +/* Load point passed in r4 to boot image. */ +/* For enum's: if given in hex then they are bit significant, */ +/* i.e. only one bit is on for each enum */ +/* Reserved fields must be filled with zeros. */ + +#ifndef _RESIDUAL_ +#define _RESIDUAL_ + +#ifndef __ASSEMBLY__ + +#define MAX_CPUS 32 /* These should be set to the maximum */ +#define MAX_MEMS 64 /* number possible for this system. */ +#define MAX_DEVICES 256 /* Changing these will change the */ +#define AVE_PNP_SIZE 32 /* structure, hence the version of */ +#define MAX_MEM_SEGS 64 /* this header file. */ + +/*----------------------------------------------------------------------------*/ +/* Public structures... */ +/*----------------------------------------------------------------------------*/ + +#include "pnp.h" + +typedef enum _L1CACHE_TYPE { + NoneCAC = 0, + SplitCAC = 1, + CombinedCAC = 2 + } L1CACHE_TYPE; + +typedef enum _TLB_TYPE { + NoneTLB = 0, + SplitTLB = 1, + CombinedTLB = 2 + } TLB_TYPE; + +typedef enum _FIRMWARE_SUPPORT { + Conventional = 0x01, + OpenFirmware = 0x02, + Diagnostics = 0x04, + LowDebug = 0x08, + Multiboot = 0x10, + LowClient = 0x20, + Hex41 = 0x40, + FAT = 0x80, + ISO9660 = 0x0100, + SCSI_InitiatorID_Override = 0x0200, + Tape_Boot = 0x0400, + FW_Boot_Path = 0x0800 + } FIRMWARE_SUPPORT; + +typedef enum _FIRMWARE_SUPPLIERS { + IBMFirmware = 0x00, + MotoFirmware = 0x01, /* 7/18/95 */ + FirmWorks = 0x02, /* 10/5/95 */ + Bull = 0x03, /* 04/03/96 */ + } FIRMWARE_SUPPLIERS; + +typedef enum _ENDIAN_SWITCH_METHODS { + UsePort92 = 0x01, + UsePCIConfigA8 = 0x02, + UseFF001030 = 0x03, + } ENDIAN_SWITCH_METHODS; + +typedef enum _SPREAD_IO_METHODS { + UsePort850 = 0x00, +/*UsePCIConfigA8 = 0x02,*/ + } SPREAD_IO_METHODS; + +typedef struct _VPD { + + /* Box dependent stuff */ + unsigned char PrintableModel[32]; /* Null terminated string. + Must be of the form: + vvv,<20h>,<model designation>,<0x0> + where vvv is the vendor ID + e.g. IBM PPS MODEL 6015<0x0> */ + unsigned char Serial[16]; /* 12/94: + Serial Number; must be of the form: + vvv<serial number> where vvv is the + vendor ID. + e.g. IBM60151234567<20h><20h> */ + unsigned char Reserved[48]; + unsigned long FirmwareSupplier; /* See FirmwareSuppliers enum */ + unsigned long FirmwareSupports; /* See FirmwareSupport enum */ + unsigned long NvramSize; /* Size of nvram in bytes */ + unsigned long NumSIMMSlots; + unsigned short EndianSwitchMethod; /* See EndianSwitchMethods enum */ + unsigned short SpreadIOMethod; /* See SpreadIOMethods enum */ + unsigned long SmpIar; + unsigned long RAMErrLogOffset; /* Heap offset to error log */ + unsigned long Reserved5; + unsigned long Reserved6; + unsigned long ProcessorHz; /* Processor clock frequency in Hertz */ + unsigned long ProcessorBusHz; /* Processor bus clock frequency */ + unsigned long Reserved7; + unsigned long TimeBaseDivisor; /* (Bus clocks per timebase tic)*1000 */ + unsigned long WordWidth; /* Word width in bits */ + unsigned long PageSize; /* Page size in bytes */ + unsigned long CoherenceBlockSize; /* Unit of transfer in/out of cache + for which coherency is maintained; + normally <= CacheLineSize. */ + unsigned long GranuleSize; /* Unit of lock allocation to avoid */ + /* false sharing of locks. */ + + /* L1 Cache variables */ + unsigned long CacheSize; /* L1 Cache size in KB. This is the */ + /* total size of the L1, whether */ + /* combined or split */ + unsigned long CacheAttrib; /* L1CACHE_TYPE */ + unsigned long CacheAssoc; /* L1 Cache associativity. Use this + for combined cache. If split, put + zeros here. */ + unsigned long CacheLineSize; /* L1 Cache line size in bytes. Use + for combined cache. If split, put + zeros here. */ + /* For split L1 Cache: (= combined if combined cache) */ + unsigned long I_CacheSize; + unsigned long I_CacheAssoc; + unsigned long I_CacheLineSize; + unsigned long D_CacheSize; + unsigned long D_CacheAssoc; + unsigned long D_CacheLineSize; + + /* Translation Lookaside Buffer variables */ + unsigned long TLBSize; /* Total number of TLBs on the system */ + unsigned long TLBAttrib; /* Combined I+D or split TLB */ + unsigned long TLBAssoc; /* TLB Associativity. Use this for + combined TLB. If split, put zeros + here. */ + /* For split TLB: (= combined if combined TLB) */ + unsigned long I_TLBSize; + unsigned long I_TLBAssoc; + unsigned long D_TLBSize; + unsigned long D_TLBAssoc; + + unsigned long ExtendedVPD; /* Offset to extended VPD area; + null if unused */ + } VPD; + +typedef enum _DEVICE_FLAGS { + Enabled = 0x4000, /* 1 - PCI device is enabled */ + Integrated = 0x2000, + Failed = 0x1000, /* 1 - device failed POST code tests */ + Static = 0x0800, /* 0 - dynamically configurable + 1 - static */ + Dock = 0x0400, /* 0 - not a docking station device + 1 - is a docking station device */ + Boot = 0x0200, /* 0 - device cannot be used for BOOT + 1 - can be a BOOT device */ + Configurable = 0x0100, /* 1 - device is configurable */ + Disableable = 0x80, /* 1 - device can be disabled */ + PowerManaged = 0x40, /* 0 - not managed; 1 - managed */ + ReadOnly = 0x20, /* 1 - device is read only */ + Removable = 0x10, /* 1 - device is removable */ + ConsoleIn = 0x08, + ConsoleOut = 0x04, + Input = 0x02, + Output = 0x01 + } DEVICE_FLAGS; + +typedef enum _BUS_ID { + ISADEVICE = 0x01, + EISADEVICE = 0x02, + PCIDEVICE = 0x04, + PCMCIADEVICE = 0x08, + PNPISADEVICE = 0x10, + MCADEVICE = 0x20, + MXDEVICE = 0x40, /* Devices on mezzanine bus */ + PROCESSORDEVICE = 0x80, /* Devices on processor bus */ + VMEDEVICE = 0x100, + } BUS_ID; + +typedef struct _DEVICE_ID { + unsigned long BusId; /* See BUS_ID enum above */ + unsigned long DevId; /* Big Endian format */ + unsigned long SerialNum; /* For multiple usage of a single + DevId */ + unsigned long Flags; /* See DEVICE_FLAGS enum above */ + unsigned char BaseType; /* See pnp.h for bit definitions */ + unsigned char SubType; /* See pnp.h for bit definitions */ + unsigned char Interface; /* See pnp.h for bit definitions */ + unsigned char Spare; + } DEVICE_ID; + +typedef union _BUS_ACCESS { + struct _PnPAccess{ + unsigned char CSN; + unsigned char LogicalDevNumber; + unsigned short ReadDataPort; + } PnPAccess; + struct _ISAAccess{ + unsigned char SlotNumber; /* ISA Slot Number generally not + available; 0 if unknown */ + unsigned char LogicalDevNumber; + unsigned short ISAReserved; + } ISAAccess; + struct _MCAAccess{ + unsigned char SlotNumber; + unsigned char LogicalDevNumber; + unsigned short MCAReserved; + } MCAAccess; + struct _PCMCIAAccess{ + unsigned char SlotNumber; + unsigned char LogicalDevNumber; + unsigned short PCMCIAReserved; + } PCMCIAAccess; + struct _EISAAccess{ + unsigned char SlotNumber; + unsigned char FunctionNumber; + unsigned short EISAReserved; + } EISAAccess; + struct _PCIAccess{ + unsigned char BusNumber; + unsigned char DevFuncNumber; + unsigned short PCIReserved; + } PCIAccess; + struct _ProcBusAccess{ + unsigned char BusNumber; + unsigned char BUID; + unsigned short ProcBusReserved; + } ProcBusAccess; + } BUS_ACCESS; + +/* Per logical device information */ +typedef struct _PPC_DEVICE { + DEVICE_ID DeviceId; + BUS_ACCESS BusAccess; + + /* The following three are offsets into the DevicePnPHeap */ + /* All are in PnP compressed format */ + unsigned long AllocatedOffset; /* Allocated resource description */ + unsigned long PossibleOffset; /* Possible resource description */ + unsigned long CompatibleOffset; /* Compatible device identifiers */ + } PPC_DEVICE; + +typedef enum _CPU_STATE { + CPU_GOOD = 0, /* CPU is present, and active */ + CPU_GOOD_FW = 1, /* CPU is present, and in firmware */ + CPU_OFF = 2, /* CPU is present, but inactive */ + CPU_FAILED = 3, /* CPU is present, but failed POST */ + CPU_NOT_PRESENT = 255 /* CPU not present */ + } CPU_STATE; + +typedef struct _PPC_CPU { + unsigned long CpuType; /* Result of mfspr from Processor + Version Register (PVR). + PVR(0-15) = Version (e.g. 601) + PVR(16-31 = EC Level */ + unsigned char CpuNumber; /* CPU Number for this processor */ + unsigned char CpuState; /* CPU State, see CPU_STATE enum */ + unsigned short Reserved; + } PPC_CPU; + +typedef struct _PPC_MEM { + unsigned long SIMMSize; /* 0 - absent or bad + 8M, 32M (in MB) */ + } PPC_MEM; + +typedef enum _MEM_USAGE { + Other = 0x8000, + ResumeBlock = 0x4000, /* for use by power management */ + SystemROM = 0x2000, /* Flash memory (populated) */ + UnPopSystemROM = 0x1000, /* Unpopulated part of SystemROM area */ + IOMemory = 0x0800, + SystemIO = 0x0400, + SystemRegs = 0x0200, + PCIAddr = 0x0100, + PCIConfig = 0x80, + ISAAddr = 0x40, + Unpopulated = 0x20, /* Unpopulated part of System Memory */ + Free = 0x10, /* Free part of System Memory */ + BootImage = 0x08, /* BootImage part of System Memory */ + FirmwareCode = 0x04, /* FirmwareCode part of System Memory */ + FirmwareHeap = 0x02, /* FirmwareHeap part of System Memory */ + FirmwareStack = 0x01 /* FirmwareStack part of System Memory*/ + } MEM_USAGE; + +typedef struct _MEM_MAP { + unsigned long Usage; /* See MEM_USAGE above */ + unsigned long BasePage; /* Page number measured in 4KB pages */ + unsigned long PageCount; /* Page count measured in 4KB pages */ + } MEM_MAP; + +typedef struct _RESIDUAL { + unsigned long ResidualLength; /* Length of Residual */ + unsigned char Version; /* of this data structure */ + unsigned char Revision; /* of this data structure */ + unsigned short EC; /* of this data structure */ + /* VPD */ + VPD VitalProductData; + /* CPU */ + unsigned short MaxNumCpus; /* Max CPUs in this system */ + unsigned short ActualNumCpus; /* ActualNumCpus < MaxNumCpus means */ + /* that there are unpopulated or */ + /* otherwise unusable cpu locations */ + PPC_CPU Cpus[MAX_CPUS]; + /* Memory */ + unsigned long TotalMemory; /* Total amount of memory installed */ + unsigned long GoodMemory; /* Total amount of good memory */ + unsigned long ActualNumMemSegs; + MEM_MAP Segs[MAX_MEM_SEGS]; + unsigned long ActualNumMemories; + PPC_MEM Memories[MAX_MEMS]; + /* Devices */ + unsigned long ActualNumDevices; + PPC_DEVICE Devices[MAX_DEVICES]; + unsigned char DevicePnPHeap[2*MAX_DEVICES*AVE_PNP_SIZE]; + } RESIDUAL; + + +extern RESIDUAL *res; +extern void print_residual_device_info(void); +extern PPC_DEVICE *residual_find_device(unsigned long BusMask, + unsigned char * DevID, int BaseType, + int SubType, int Interface, int n); +extern PnP_TAG_PACKET *PnP_find_packet(unsigned char *p, unsigned packet_tag, + int n); +extern PnP_TAG_PACKET *PnP_find_small_vendor_packet(unsigned char *p, + unsigned packet_type, + int n); +extern PnP_TAG_PACKET *PnP_find_large_vendor_packet(unsigned char *p, + unsigned packet_type, + int n); +#endif /* __ASSEMBLY__ */ +#endif /* ndef _RESIDUAL_ */ diff --git a/arch/ppc/include/asm/sigcontext.h b/arch/ppc/include/asm/sigcontext.h new file mode 100644 index 0000000..715c868 --- /dev/null +++ b/arch/ppc/include/asm/sigcontext.h @@ -0,0 +1,15 @@ +#ifndef _ASM_PPC_SIGCONTEXT_H +#define _ASM_PPC_SIGCONTEXT_H + +#include <asm/ptrace.h> + + +struct sigcontext_struct { + unsigned long _unused[4]; + int signal; + unsigned long handler; + unsigned long oldmask; + struct pt_regs *regs; +}; + +#endif diff --git a/arch/ppc/include/asm/signal.h b/arch/ppc/include/asm/signal.h new file mode 100644 index 0000000..b11a28e --- /dev/null +++ b/arch/ppc/include/asm/signal.h @@ -0,0 +1,154 @@ +#ifndef _ASMPPC_SIGNAL_H +#define _ASMPPC_SIGNAL_H + +#include <linux/types.h> + +/* Avoid too many header ordering problems. */ +struct siginfo; + +/* Most things should be clean enough to redefine this at will, if care + is taken to make libc match. */ + +#define _NSIG 64 +#define _NSIG_BPW 32 +#define _NSIG_WORDS (_NSIG / _NSIG_BPW) + +typedef unsigned long old_sigset_t; /* at least 32 bits */ + +typedef struct { + unsigned long sig[_NSIG_WORDS]; +} sigset_t; + +#define SIGHUP 1 +#define SIGINT 2 +#define SIGQUIT 3 +#define SIGILL 4 +#define SIGTRAP 5 +#define SIGABRT 6 +#define SIGIOT 6 +#define SIGBUS 7 +#define SIGFPE 8 +#define SIGKILL 9 +#define SIGUSR1 10 +#define SIGSEGV 11 +#define SIGUSR2 12 +#define SIGPIPE 13 +#define SIGALRM 14 +#define SIGTERM 15 +#define SIGSTKFLT 16 +#define SIGCHLD 17 +#define SIGCONT 18 +#define SIGSTOP 19 +#define SIGTSTP 20 +#define SIGTTIN 21 +#define SIGTTOU 22 +#define SIGURG 23 +#define SIGXCPU 24 +#define SIGXFSZ 25 +#define SIGVTALRM 26 +#define SIGPROF 27 +#define SIGWINCH 28 +#define SIGIO 29 +#define SIGPOLL SIGIO +/* +#define SIGLOST 29 +*/ +#define SIGPWR 30 +#define SIGSYS 31 +#define SIGUNUSED 31 + +/* These should not be considered constants from userland. */ +#define SIGRTMIN 32 +#define SIGRTMAX (_NSIG-1) + +/* + * SA_FLAGS values: + * + * SA_ONSTACK is not currently supported, but will allow sigaltstack(2). + * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the + * SA_RESTART flag to get restarting signals (which were the default long ago) + * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. + * SA_RESETHAND clears the handler when the signal is delivered. + * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. + * SA_NODEFER prevents the current signal from being masked in the handler. + * + * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single + * Unix names RESETHAND and NODEFER respectively. + */ +#define SA_NOCLDSTOP 0x00000001 +#define SA_NOCLDWAIT 0x00000002 /* not supported yet */ +#define SA_SIGINFO 0x00000004 +#define SA_ONSTACK 0x08000000 +#define SA_RESTART 0x10000000 +#define SA_NODEFER 0x40000000 +#define SA_RESETHAND 0x80000000 + +#define SA_NOMASK SA_NODEFER +#define SA_ONESHOT SA_RESETHAND +#define SA_INTERRUPT 0x20000000 /* dummy -- ignored */ + +#define SA_RESTORER 0x04000000 + +/* + * sigaltstack controls + */ +#define SS_ONSTACK 1 +#define SS_DISABLE 2 + +#define MINSIGSTKSZ 2048 +#define SIGSTKSZ 8192 +#ifdef __KERNEL__ + +/* + * These values of sa_flags are used only by the kernel as part of the + * irq handling routines. + * + * SA_INTERRUPT is also used by the irq handling routines. + * SA_SHIRQ is for shared interrupt support on PCI and EISA. + */ +#define SA_PROBE SA_ONESHOT +#define SA_SAMPLE_RANDOM SA_RESTART +#define SA_SHIRQ 0x04000000 +#endif + +#define SIG_BLOCK 0 /* for blocking signals */ +#define SIG_UNBLOCK 1 /* for unblocking signals */ +#define SIG_SETMASK 2 /* for setting the signal mask */ + +/* Type of a signal handler. */ +typedef void (*__sighandler_t)(int); + +#define SIG_DFL ((__sighandler_t)0) /* default signal handling */ +#define SIG_IGN ((__sighandler_t)1) /* ignore signal */ +#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */ + +struct old_sigaction { + __sighandler_t sa_handler; + old_sigset_t sa_mask; + unsigned long sa_flags; + void (*sa_restorer)(void); +}; + +struct sigaction { + __sighandler_t sa_handler; + unsigned long sa_flags; + void (*sa_restorer)(void); + sigset_t sa_mask; /* mask last for extensibility */ +}; + +struct k_sigaction { + struct sigaction sa; +}; + +typedef struct sigaltstack { + void *ss_sp; + int ss_flags; + size_t ss_size; +} stack_t; + +#ifdef __KERNEL__ +#include <asm/sigcontext.h> + +#endif + +#endif diff --git a/arch/ppc/include/asm/status_led.h b/arch/ppc/include/asm/status_led.h new file mode 100644 index 0000000..0375709 --- /dev/null +++ b/arch/ppc/include/asm/status_led.h @@ -0,0 +1,77 @@ +/* + * asm/status_led.h + * + * MPC8xx/MPC8260/MPC5xx based status led support functions + */ + +#ifndef __ASM_STATUS_LED_H__ +#define __ASM_STATUS_LED_H__ + +/* if not overriden */ +#ifndef CONFIG_BOARD_SPECIFIC_LED +# if defined(CONFIG_8xx) +# include <mpc8xx.h> +# elif defined(CONFIG_8260) +# include <mpc8260.h> +# elif defined(CONFIG_5xx) +# include <mpc5xx.h> +# else +# error CPU specific Status LED header file missing. +#endif + +/* led_id_t is unsigned long mask */ +typedef unsigned long led_id_t; + +static inline void __led_init (led_id_t mask, int state) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + +#ifdef STATUS_LED_PAR + immr->STATUS_LED_PAR &= ~mask; +#endif +#ifdef STATUS_LED_ODR + immr->STATUS_LED_ODR &= ~mask; +#endif + +#if (STATUS_LED_ACTIVE == 0) + if (state == STATUS_LED_ON) + immr->STATUS_LED_DAT &= ~mask; + else + immr->STATUS_LED_DAT |= mask; +#else + if (state == STATUS_LED_ON) + immr->STATUS_LED_DAT |= mask; + else + immr->STATUS_LED_DAT &= ~mask; +#endif +#ifdef STATUS_LED_DIR + immr->STATUS_LED_DIR |= mask; +#endif +} + +static inline void __led_toggle (led_id_t mask) +{ + ((immap_t *) CONFIG_SYS_IMMR)->STATUS_LED_DAT ^= mask; +} + +static inline void __led_set (led_id_t mask, int state) +{ + volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; + +#if (STATUS_LED_ACTIVE == 0) + if (state == STATUS_LED_ON) + immr->STATUS_LED_DAT &= ~mask; + else + immr->STATUS_LED_DAT |= mask; +#else + if (state == STATUS_LED_ON) + immr->STATUS_LED_DAT |= mask; + else + immr->STATUS_LED_DAT &= ~mask; +#endif + +} + +#endif + +#endif /* __ASM_STATUS_LED_H__ */ diff --git a/arch/ppc/include/asm/string.h b/arch/ppc/include/asm/string.h new file mode 100644 index 0000000..d912a6b --- /dev/null +++ b/arch/ppc/include/asm/string.h @@ -0,0 +1,29 @@ +#ifndef _PPC_STRING_H_ +#define _PPC_STRING_H_ + +#define __HAVE_ARCH_STRCPY +#define __HAVE_ARCH_STRNCPY +#define __HAVE_ARCH_STRLEN +#define __HAVE_ARCH_STRCMP +#define __HAVE_ARCH_STRCAT +#define __HAVE_ARCH_MEMSET +#define __HAVE_ARCH_BCOPY +#define __HAVE_ARCH_MEMCPY +#define __HAVE_ARCH_MEMMOVE +#define __HAVE_ARCH_MEMCMP +#define __HAVE_ARCH_MEMCHR + +extern int strcasecmp(const char *, const char *); +extern int strncasecmp(const char *, const char *, int); +extern char * strcpy(char *,const char *); +extern char * strncpy(char *,const char *, __kernel_size_t); +extern __kernel_size_t strlen(const char *); +extern int strcmp(const char *,const char *); +extern char * strcat(char *, const char *); +extern void * memset(void *,int,__kernel_size_t); +extern void * memcpy(void *,const void *,__kernel_size_t); +extern void * memmove(void *,const void *,__kernel_size_t); +extern int memcmp(const void *,const void *,__kernel_size_t); +extern void * memchr(const void *,int,__kernel_size_t); + +#endif diff --git a/arch/ppc/include/asm/types.h b/arch/ppc/include/asm/types.h new file mode 100644 index 0000000..b27a6b7 --- /dev/null +++ b/arch/ppc/include/asm/types.h @@ -0,0 +1,58 @@ +#ifndef _PPC_TYPES_H +#define _PPC_TYPES_H + +#ifndef __ASSEMBLY__ + +typedef unsigned short umode_t; + +typedef __signed__ char __s8; +typedef unsigned char __u8; + +typedef __signed__ short __s16; +typedef unsigned short __u16; + +typedef __signed__ int __s32; +typedef unsigned int __u32; + +#if defined(__GNUC__) +__extension__ typedef __signed__ long long __s64; +__extension__ typedef unsigned long long __u64; +#endif + +typedef struct { + __u32 u[4]; +} __attribute__((aligned(16))) vector128; + +#ifdef __KERNEL__ +/* + * These aren't exported outside the kernel to avoid name space clashes + */ +typedef signed char s8; +typedef unsigned char u8; + +typedef signed short s16; +typedef unsigned short u16; + +typedef signed int s32; +typedef unsigned int u32; + +typedef signed long long s64; +typedef unsigned long long u64; + +#define BITS_PER_LONG 32 + +/* DMA addresses are 32-bits wide */ +typedef u32 dma_addr_t; + +#ifdef CONFIG_PHYS_64BIT +typedef unsigned long long phys_addr_t; +typedef unsigned long long phys_size_t; +#else +typedef unsigned long phys_addr_t; +typedef unsigned long phys_size_t; +#endif + +#endif /* __KERNEL__ */ +#endif /* __ASSEMBLY__ */ + +#endif diff --git a/arch/ppc/include/asm/u-boot.h b/arch/ppc/include/asm/u-boot.h new file mode 100644 index 0000000..ea2d22d --- /dev/null +++ b/arch/ppc/include/asm/u-boot.h @@ -0,0 +1,146 @@ +/* + * (C) Copyright 2000 - 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + ******************************************************************** + * NOTE: This header file defines an interface to U-Boot. Including + * this (unmodified) header file in another file is considered normal + * use of U-Boot, and does *not* fall under the heading of "derived + * work". + ******************************************************************** + */ + +#ifndef __U_BOOT_H__ +#define __U_BOOT_H__ + +/* + * Board information passed to Linux kernel from U-Boot + * + * include/asm-ppc/u-boot.h + */ + +#ifndef __ASSEMBLY__ + +typedef struct bd_info { + unsigned long bi_memstart; /* start of DRAM memory */ + phys_size_t bi_memsize; /* size of DRAM memory in bytes */ + unsigned long bi_flashstart; /* start of FLASH memory */ + unsigned long bi_flashsize; /* size of FLASH memory */ + unsigned long bi_flashoffset; /* reserved area for startup monitor */ + unsigned long bi_sramstart; /* start of SRAM memory */ + unsigned long bi_sramsize; /* size of SRAM memory */ +#if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_8260) \ + || defined(CONFIG_E500) || defined(CONFIG_MPC86xx) + unsigned long bi_immr_base; /* base of IMMR register */ +#endif +#if defined(CONFIG_MPC5xxx) + unsigned long bi_mbar_base; /* base of internal registers */ +#endif +#if defined(CONFIG_MPC83xx) + unsigned long bi_immrbar; +#endif +#if defined(CONFIG_MPC8220) + unsigned long bi_mbar_base; /* base of internal registers */ + unsigned long bi_inpfreq; /* Input Freq, In MHz */ + unsigned long bi_pcifreq; /* PCI Freq, in MHz */ + unsigned long bi_pevfreq; /* PEV Freq, in MHz */ + unsigned long bi_flbfreq; /* Flexbus Freq, in MHz */ + unsigned long bi_vcofreq; /* VCO Freq, in MHz */ +#endif + unsigned long bi_bootflags; /* boot / reboot flag (for LynxOS) */ + unsigned long bi_ip_addr; /* IP Address */ + unsigned char bi_enetaddr[6]; /* OLD: see README.enetaddr */ + unsigned short bi_ethspeed; /* Ethernet speed in Mbps */ + unsigned long bi_intfreq; /* Internal Freq, in MHz */ + unsigned long bi_busfreq; /* Bus Freq, in MHz */ +#if defined(CONFIG_CPM2) + unsigned long bi_cpmfreq; /* CPM_CLK Freq, in MHz */ + unsigned long bi_brgfreq; /* BRG_CLK Freq, in MHz */ + unsigned long bi_sccfreq; /* SCC_CLK Freq, in MHz */ + unsigned long bi_vco; /* VCO Out from PLL, in MHz */ +#endif +#if defined(CONFIG_MPC512X) + unsigned long bi_ipsfreq; /* IPS Bus Freq, in MHz */ +#endif /* CONFIG_MPC512X */ +#if defined(CONFIG_MPC5xxx) + unsigned long bi_ipbfreq; /* IPB Bus Freq, in MHz */ + unsigned long bi_pcifreq; /* PCI Bus Freq, in MHz */ +#endif + unsigned long bi_baudrate; /* Console Baudrate */ +#if defined(CONFIG_405) || \ + defined(CONFIG_405GP) || \ + defined(CONFIG_405CR) || \ + defined(CONFIG_405EP) || \ + defined(CONFIG_405EZ) || \ + defined(CONFIG_405EX) || \ + defined(CONFIG_440) + unsigned char bi_s_version[4]; /* Version of this structure */ + unsigned char bi_r_version[32]; /* Version of the ROM (AMCC) */ + unsigned int bi_procfreq; /* CPU (Internal) Freq, in Hz */ + unsigned int bi_plb_busfreq; /* PLB Bus speed, in Hz */ + unsigned int bi_pci_busfreq; /* PCI Bus speed, in Hz */ + unsigned char bi_pci_enetaddr[6]; /* PCI Ethernet MAC address */ +#endif +#if defined(CONFIG_HYMOD) + hymod_conf_t bi_hymod_conf; /* hymod configuration information */ +#endif + +#ifdef CONFIG_HAS_ETH1 + unsigned char bi_enet1addr[6]; /* OLD: see README.enetaddr */ +#endif +#ifdef CONFIG_HAS_ETH2 + unsigned char bi_enet2addr[6]; /* OLD: see README.enetaddr */ +#endif +#ifdef CONFIG_HAS_ETH3 + unsigned char bi_enet3addr[6]; /* OLD: see README.enetaddr */ +#endif +#ifdef CONFIG_HAS_ETH4 + unsigned char bi_enet4addr[6]; /* OLD: see README.enetaddr */ +#endif +#ifdef CONFIG_HAS_ETH5 + unsigned char bi_enet5addr[6]; /* OLD: see README.enetaddr */ +#endif + +#if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \ + defined(CONFIG_405EZ) || defined(CONFIG_440GX) || \ + defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) + unsigned int bi_opbfreq; /* OPB clock in Hz */ + int bi_iic_fast[2]; /* Use fast i2c mode */ +#endif +#if defined(CONFIG_NX823) + unsigned char bi_sernum[8]; +#endif +#if defined(CONFIG_4xx) +#if defined(CONFIG_440GX) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) + int bi_phynum[4]; /* Determines phy mapping */ + int bi_phymode[4]; /* Determines phy mode */ +#elif defined(CONFIG_405EP) || defined(CONFIG_440) + int bi_phynum[2]; /* Determines phy mapping */ + int bi_phymode[2]; /* Determines phy mode */ +#else + int bi_phynum[1]; /* Determines phy mapping */ + int bi_phymode[1]; /* Determines phy mode */ +#endif +#endif /* defined(CONFIG_4xx) */ +} bd_t; + +#endif /* __ASSEMBLY__ */ +#endif /* __U_BOOT_H__ */ diff --git a/arch/ppc/include/asm/unaligned.h b/arch/ppc/include/asm/unaligned.h new file mode 100644 index 0000000..5f1b1e3 --- /dev/null +++ b/arch/ppc/include/asm/unaligned.h @@ -0,0 +1,16 @@ +#ifndef _ASM_POWERPC_UNALIGNED_H +#define _ASM_POWERPC_UNALIGNED_H + +#ifdef __KERNEL__ + +/* + * The PowerPC can do unaligned accesses itself in big endian mode. + */ +#include <linux/unaligned/access_ok.h> +#include <linux/unaligned/generic.h> + +#define get_unaligned __get_unaligned_be +#define put_unaligned __put_unaligned_be + +#endif /* __KERNEL__ */ +#endif /* _ASM_POWERPC_UNALIGNED_H */ diff --git a/arch/ppc/include/asm/xilinx_irq.h b/arch/ppc/include/asm/xilinx_irq.h new file mode 100644 index 0000000..61171c2 --- /dev/null +++ b/arch/ppc/include/asm/xilinx_irq.h @@ -0,0 +1,36 @@ +/* + * (C) Copyright 2008 + * Ricado Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es + * This work has been supported by: QTechnology http://qtec.com/ + * Based on interrupts.c Wolfgang Denk-DENX Software Engineering-wd@denx.de + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ +#ifndef XILINX_IRQ_H +#define XILINX_IRQ_H + +#define intc XPAR_INTC_0_BASEADDR +#define ISR (intc + (0 * 4)) /* Interrupt Status Register */ +#define IPR (intc + (1 * 4)) /* Interrupt Pending Register */ +#define IER (intc + (2 * 4)) /* Interrupt Enable Register */ +#define IAR (intc + (3 * 4)) /* Interrupt Acknowledge Register */ +#define SIE (intc + (4 * 4)) /* Set Interrupt Enable bits */ +#define CIE (intc + (5 * 4)) /* Clear Interrupt Enable bits */ +#define IVR (intc + (6 * 4)) /* Interrupt Vector Register */ +#define MER (intc + (7 * 4)) /* Master Enable Register */ + +#define IRQ_MASK(irq) (1 << (irq & 0x1f)) + +#define IRQ_MAX XPAR_INTC_MAX_NUM_INTR_INPUTS + +#endif diff --git a/arch/ppc/lib/Makefile b/arch/ppc/lib/Makefile new file mode 100644 index 0000000..334e457 --- /dev/null +++ b/arch/ppc/lib/Makefile @@ -0,0 +1,61 @@ +# +# (C) Copyright 2000-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(ARCH).a + +SOBJS-y += ppccache.o +SOBJS-y += ppcstring.o +SOBJS-y += ticks.o +SOBJS-y += reloc.o + +COBJS-y += bat_rw.o +COBJS-y += board.o +COBJS-y += bootm.o +COBJS-y += cache.o +COBJS-y += extable.o +COBJS-y += interrupts.o +COBJS-$(CONFIG_CMD_KGDB) += kgdb.o +COBJS-y += time.o + +SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) + +$(LIB): $(obj).depend $(OBJS) + @if ! $(CROSS_COMPILE)readelf -S $(OBJS) | grep -q '\.fixup.*PROGBITS';\ + then \ + echo "ERROR: Your compiler doesn't generate .fixup sections!";\ + echo " Upgrade to a recent toolchain."; \ + exit 1; \ + fi; + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/ppc/lib/bat_rw.c b/arch/ppc/lib/bat_rw.c new file mode 100644 index 0000000..c48c240 --- /dev/null +++ b/arch/ppc/lib/bat_rw.c @@ -0,0 +1,260 @@ +/* + * (C) Copyright 2002 + * Rich Ireland, Enterasys Networks, rireland@enterasys.com. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +#include <common.h> +#include <asm/processor.h> +#include <asm/mmu.h> +#include <asm/io.h> + +#ifdef CONFIG_ADDR_MAP +#include <addr_map.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +int write_bat (ppc_bat_t bat, unsigned long upper, unsigned long lower) +{ + int batn = -1; + + sync(); + + switch (bat) { + case DBAT0: + mtspr (DBAT0L, lower); + mtspr (DBAT0U, upper); + batn = 0; + break; + case IBAT0: + mtspr (IBAT0L, lower); + mtspr (IBAT0U, upper); + break; + case DBAT1: + mtspr (DBAT1L, lower); + mtspr (DBAT1U, upper); + batn = 1; + break; + case IBAT1: + mtspr (IBAT1L, lower); + mtspr (IBAT1U, upper); + break; + case DBAT2: + mtspr (DBAT2L, lower); + mtspr (DBAT2U, upper); + batn = 2; + break; + case IBAT2: + mtspr (IBAT2L, lower); + mtspr (IBAT2U, upper); + break; + case DBAT3: + mtspr (DBAT3L, lower); + mtspr (DBAT3U, upper); + batn = 3; + break; + case IBAT3: + mtspr (IBAT3L, lower); + mtspr (IBAT3U, upper); + break; +#ifdef CONFIG_HIGH_BATS + case DBAT4: + mtspr (DBAT4L, lower); + mtspr (DBAT4U, upper); + batn = 4; + break; + case IBAT4: + mtspr (IBAT4L, lower); + mtspr (IBAT4U, upper); + break; + case DBAT5: + mtspr (DBAT5L, lower); + mtspr (DBAT5U, upper); + batn = 5; + break; + case IBAT5: + mtspr (IBAT5L, lower); + mtspr (IBAT5U, upper); + break; + case DBAT6: + mtspr (DBAT6L, lower); + mtspr (DBAT6U, upper); + batn = 6; + break; + case IBAT6: + mtspr (IBAT6L, lower); + mtspr (IBAT6U, upper); + break; + case DBAT7: + mtspr (DBAT7L, lower); + mtspr (DBAT7U, upper); + batn = 7; + break; + case IBAT7: + mtspr (IBAT7L, lower); + mtspr (IBAT7U, upper); + break; +#endif + default: + return (-1); + } + +#ifdef CONFIG_ADDR_MAP + if ((gd->flags & GD_FLG_RELOC) && (batn >= 0)) { + phys_size_t size; + if (!BATU_VALID(upper)) + size = 0; + else + size = BATU_SIZE(upper); + addrmap_set_entry(BATU_VADDR(upper), BATL_PADDR(lower), + size, batn); + } +#endif + + sync(); + isync(); + + return (0); +} + +int read_bat (ppc_bat_t bat, unsigned long *upper, unsigned long *lower) +{ + unsigned long register u; + unsigned long register l; + + switch (bat) { + case DBAT0: + l = mfspr (DBAT0L); + u = mfspr (DBAT0U); + break; + case IBAT0: + l = mfspr (IBAT0L); + u = mfspr (IBAT0U); + break; + case DBAT1: + l = mfspr (DBAT1L); + u = mfspr (DBAT1U); + break; + case IBAT1: + l = mfspr (IBAT1L); + u = mfspr (IBAT1U); + break; + case DBAT2: + l = mfspr (DBAT2L); + u = mfspr (DBAT2U); + break; + case IBAT2: + l = mfspr (IBAT2L); + u = mfspr (IBAT2U); + break; + case DBAT3: + l = mfspr (DBAT3L); + u = mfspr (DBAT3U); + break; + case IBAT3: + l = mfspr (IBAT3L); + u = mfspr (IBAT3U); + break; +#ifdef CONFIG_HIGH_BATS + case DBAT4: + l = mfspr (DBAT4L); + u = mfspr (DBAT4U); + break; + case IBAT4: + l = mfspr (IBAT4L); + u = mfspr (IBAT4U); + break; + case DBAT5: + l = mfspr (DBAT5L); + u = mfspr (DBAT5U); + break; + case IBAT5: + l = mfspr (IBAT5L); + u = mfspr (IBAT5U); + break; + case DBAT6: + l = mfspr (DBAT6L); + u = mfspr (DBAT6U); + break; + case IBAT6: + l = mfspr (IBAT6L); + u = mfspr (IBAT6U); + break; + case DBAT7: + l = mfspr (DBAT7L); + u = mfspr (DBAT7U); + break; + case IBAT7: + l = mfspr (IBAT7L); + u = mfspr (IBAT7U); + break; +#endif + default: + return (-1); + } + + *upper = u; + *lower = l; + + return (0); +} + +void print_bats(void) +{ + printf("BAT registers:\n"); + + printf ("\tIBAT0L = 0x%08X ", mfspr (IBAT0L)); + printf ("\tIBAT0U = 0x%08X\n", mfspr (IBAT0U)); + printf ("\tDBAT0L = 0x%08X ", mfspr (DBAT0L)); + printf ("\tDBAT0U = 0x%08X\n", mfspr (DBAT0U)); + printf ("\tIBAT1L = 0x%08X ", mfspr (IBAT1L)); + printf ("\tIBAT1U = 0x%08X\n", mfspr (IBAT1U)); + printf ("\tDBAT1L = 0x%08X ", mfspr (DBAT1L)); + printf ("\tDBAT1U = 0x%08X\n", mfspr (DBAT1U)); + printf ("\tIBAT2L = 0x%08X ", mfspr (IBAT2L)); + printf ("\tIBAT2U = 0x%08X\n", mfspr (IBAT2U)); + printf ("\tDBAT2L = 0x%08X ", mfspr (DBAT2L)); + printf ("\tDBAT2U = 0x%08X\n", mfspr (DBAT2U)); + printf ("\tIBAT3L = 0x%08X ", mfspr (IBAT3L)); + printf ("\tIBAT3U = 0x%08X\n", mfspr (IBAT3U)); + printf ("\tDBAT3L = 0x%08X ", mfspr (DBAT3L)); + printf ("\tDBAT3U = 0x%08X\n", mfspr (DBAT3U)); + +#ifdef CONFIG_HIGH_BATS + printf ("\tIBAT4L = 0x%08X ", mfspr (IBAT4L)); + printf ("\tIBAT4U = 0x%08X\n", mfspr (IBAT4U)); + printf ("\tDBAT4L = 0x%08X ", mfspr (DBAT4L)); + printf ("\tDBAT4U = 0x%08X\n", mfspr (DBAT4U)); + printf ("\tIBAT5L = 0x%08X ", mfspr (IBAT5L)); + printf ("\tIBAT5U = 0x%08X\n", mfspr (IBAT5U)); + printf ("\tDBAT5L = 0x%08X ", mfspr (DBAT5L)); + printf ("\tDBAT5U = 0x%08X\n", mfspr (DBAT5U)); + printf ("\tIBAT6L = 0x%08X ", mfspr (IBAT6L)); + printf ("\tIBAT6U = 0x%08X\n", mfspr (IBAT6U)); + printf ("\tDBAT6L = 0x%08X ", mfspr (DBAT6L)); + printf ("\tDBAT6U = 0x%08X\n", mfspr (DBAT6U)); + printf ("\tIBAT7L = 0x%08X ", mfspr (IBAT7L)); + printf ("\tIBAT7U = 0x%08X\n", mfspr (IBAT7U)); + printf ("\tDBAT7L = 0x%08X ", mfspr (DBAT7L)); + printf ("\tDBAT7U = 0x%08X\n", mfspr (DBAT7U)); +#endif +} diff --git a/arch/ppc/lib/board.c b/arch/ppc/lib/board.c new file mode 100644 index 0000000..a30acee --- /dev/null +++ b/arch/ppc/lib/board.c @@ -0,0 +1,1084 @@ +/* + * (C) Copyright 2000-2010 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <malloc.h> +#include <stdio_dev.h> +#ifdef CONFIG_8xx +#include <mpc8xx.h> +#endif +#ifdef CONFIG_5xx +#include <mpc5xx.h> +#endif +#ifdef CONFIG_MPC5xxx +#include <mpc5xxx.h> +#endif +#if defined(CONFIG_CMD_IDE) +#include <ide.h> +#endif +#if defined(CONFIG_CMD_SCSI) +#include <scsi.h> +#endif +#if defined(CONFIG_CMD_KGDB) +#include <kgdb.h> +#endif +#ifdef CONFIG_STATUS_LED +#include <status_led.h> +#endif +#include <net.h> +#ifdef CONFIG_GENERIC_MMC +#include <mmc.h> +#endif +#include <serial.h> +#ifdef CONFIG_SYS_ALLOC_DPRAM +#if !defined(CONFIG_CPM2) +#include <commproc.h> +#endif +#endif +#include <version.h> +#if defined(CONFIG_BAB7xx) +#include <w83c553f.h> +#endif +#include <dtt.h> +#if defined(CONFIG_POST) +#include <post.h> +#endif +#if defined(CONFIG_LOGBUFFER) +#include <logbuff.h> +#endif +#if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500) +#include <asm/cache.h> +#endif +#ifdef CONFIG_PS2KBD +#include <keyboard.h> +#endif + +#ifdef CONFIG_ADDR_MAP +#include <asm/mmu.h> +#endif + +#ifdef CONFIG_MP +#include <asm/mp.h> +#endif + +#ifdef CONFIG_BITBANGMII +#include <miiphy.h> +#endif + +#ifdef CONFIG_SYS_UPDATE_FLASH_SIZE +extern int update_flash_size (int flash_size); +#endif + +#if defined(CONFIG_SC3) +extern void sc3_read_eeprom(void); +#endif + +#if defined(CONFIG_CMD_DOC) +void doc_init (void); +#endif +#if defined(CONFIG_HARD_I2C) || \ + defined(CONFIG_SOFT_I2C) +#include <i2c.h> +#endif +#include <spi.h> +#include <nand.h> + +static char *failed = "*** failed ***\n"; + +#if defined(CONFIG_OXC) || defined(CONFIG_PCU_E) || defined(CONFIG_RMU) +extern flash_info_t flash_info[]; +#endif + +#if defined(CONFIG_START_IDE) +extern int board_start_ide(void); +#endif +#include <environment.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_ENV_IS_EMBEDDED) +#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN +#elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \ + (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \ + defined(CONFIG_ENV_IS_IN_NVRAM) +#define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE) +#else +#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN +#endif + +#if !defined(CONFIG_SYS_MEM_TOP_HIDE) +#define CONFIG_SYS_MEM_TOP_HIDE 0 +#endif + +extern ulong __init_end; +extern ulong _end; +ulong monitor_flash_len; + +#if defined(CONFIG_CMD_BEDBUG) +#include <bedbug/type.h> +#endif + +/************************************************************************ + * Utilities * + ************************************************************************ + */ + +/* + * All attempts to come up with a "common" initialization sequence + * that works for all boards and architectures failed: some of the + * requirements are just _too_ different. To get rid of the resulting + * mess of board dependend #ifdef'ed code we now make the whole + * initialization sequence configurable to the user. + * + * The requirements for any new initalization function is simple: it + * receives a pointer to the "global data" structure as it's only + * argument, and returns an integer return code, where 0 means + * "continue" and != 0 means "fatal error, hang the system". + */ +typedef int (init_fnc_t) (void); + +/************************************************************************ + * Init Utilities * + ************************************************************************ + * Some of this code should be moved into the core functions, + * but let's get it working (again) first... + */ + +static int init_baudrate (void) +{ + char tmp[64]; /* long enough for environment variables */ + int i = getenv_r ("baudrate", tmp, sizeof (tmp)); + + gd->baudrate = (i > 0) + ? (int) simple_strtoul (tmp, NULL, 10) + : CONFIG_BAUDRATE; + return (0); +} + +/***********************************************************************/ + +void __board_add_ram_info(int use_default) +{ + /* please define platform specific board_add_ram_info() */ +} +void board_add_ram_info(int) __attribute__((weak, alias("__board_add_ram_info"))); + + +static int init_func_ram (void) +{ +#ifdef CONFIG_BOARD_TYPES + int board_type = gd->board_type; +#else + int board_type = 0; /* use dummy arg */ +#endif + puts ("DRAM: "); + + if ((gd->ram_size = initdram (board_type)) > 0) { + print_size (gd->ram_size, ""); + board_add_ram_info(0); + putc('\n'); + return (0); + } + puts (failed); + return (1); +} + +/***********************************************************************/ + +#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) +static int init_func_i2c (void) +{ + puts ("I2C: "); + i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + puts ("ready\n"); + return (0); +} +#endif + +#if defined(CONFIG_HARD_SPI) +static int init_func_spi (void) +{ + puts ("SPI: "); + spi_init (); + puts ("ready\n"); + return (0); +} +#endif + +/***********************************************************************/ + +#if defined(CONFIG_WATCHDOG) +static int init_func_watchdog_init (void) +{ + puts (" Watchdog enabled\n"); + WATCHDOG_RESET (); + return (0); +} +# define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init, + +static int init_func_watchdog_reset (void) +{ + WATCHDOG_RESET (); + return (0); +} +# define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset, +#else +# define INIT_FUNC_WATCHDOG_INIT /* undef */ +# define INIT_FUNC_WATCHDOG_RESET /* undef */ +#endif /* CONFIG_WATCHDOG */ + +/************************************************************************ + * Initialization sequence * + ************************************************************************ + */ + +init_fnc_t *init_sequence[] = { +#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) + probecpu, +#endif +#if defined(CONFIG_BOARD_EARLY_INIT_F) + board_early_init_f, +#endif +#if !defined(CONFIG_8xx_CPUCLK_DEFAULT) + get_clocks, /* get CPU and bus clocks (etc.) */ +#if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \ + && !defined(CONFIG_TQM885D) + adjust_sdram_tbs_8xx, +#endif + init_timebase, +#endif +#ifdef CONFIG_SYS_ALLOC_DPRAM +#if !defined(CONFIG_CPM2) + dpram_init, +#endif +#endif +#if defined(CONFIG_BOARD_POSTCLK_INIT) + board_postclk_init, +#endif + env_init, +#if defined(CONFIG_8xx_CPUCLK_DEFAULT) + get_clocks_866, /* get CPU and bus clocks according to the environment variable */ + sdram_adjust_866, /* adjust sdram refresh rate according to the new clock */ + init_timebase, +#endif + init_baudrate, + serial_init, + console_init_f, + display_options, +#if defined(CONFIG_8260) + prt_8260_rsr, + prt_8260_clks, +#endif /* CONFIG_8260 */ +#if defined(CONFIG_MPC83xx) + prt_83xx_rsr, +#endif + checkcpu, +#if defined(CONFIG_MPC5xxx) + prt_mpc5xxx_clks, +#endif /* CONFIG_MPC5xxx */ +#if defined(CONFIG_MPC8220) + prt_mpc8220_clks, +#endif + checkboard, + INIT_FUNC_WATCHDOG_INIT +#if defined(CONFIG_MISC_INIT_F) + misc_init_f, +#endif + INIT_FUNC_WATCHDOG_RESET +#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) + init_func_i2c, +#endif +#if defined(CONFIG_HARD_SPI) + init_func_spi, +#endif +#ifdef CONFIG_POST + post_init_f, +#endif + INIT_FUNC_WATCHDOG_RESET + init_func_ram, +#if defined(CONFIG_SYS_DRAM_TEST) + testdram, +#endif /* CONFIG_SYS_DRAM_TEST */ + INIT_FUNC_WATCHDOG_RESET + + NULL, /* Terminate this list */ +}; + +ulong get_effective_memsize(void) +{ +#ifndef CONFIG_VERY_BIG_RAM + return gd->ram_size; +#else + /* limit stack to what we can reasonable map */ + return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ? + CONFIG_MAX_MEM_MAPPED : gd->ram_size); +#endif +} + +/************************************************************************ + * + * This is the first part of the initialization sequence that is + * implemented in C, but still running from ROM. + * + * The main purpose is to provide a (serial) console interface as + * soon as possible (so we can see any error messages), and to + * initialize the RAM so that we can relocate the monitor code to + * RAM. + * + * Be aware of the restrictions: global data is read-only, BSS is not + * initialized, and stack space is limited to a few kB. + * + ************************************************************************ + */ + +#ifdef CONFIG_LOGBUFFER +unsigned long logbuffer_base(void) +{ + return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN; +} +#endif + +void board_init_f (ulong bootflag) +{ + bd_t *bd; + ulong len, addr, addr_sp; + ulong *s; + gd_t *id; + init_fnc_t **init_fnc_ptr; +#ifdef CONFIG_PRAM + int i; + ulong reg; + uchar tmp[64]; /* long enough for environment variables */ +#endif + + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); + /* compiler optimization barrier needed for GCC >= 3.4 */ + __asm__ __volatile__("": : :"memory"); + +#if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \ + !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \ + !defined(CONFIG_MPC86xx) + /* Clear initial global data */ + memset ((void *) gd, 0, sizeof (gd_t)); +#endif + + for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { + if ((*init_fnc_ptr) () != 0) { + hang (); + } + } + + /* + * Now that we have DRAM mapped and working, we can + * relocate the code and continue running from DRAM. + * + * Reserve memory at end of RAM for (top down in that order): + * - area that won't get touched by U-Boot and Linux (optional) + * - kernel log buffer + * - protected RAM + * - LCD framebuffer + * - monitor code + * - board info struct + */ + len = (ulong)&_end - CONFIG_SYS_MONITOR_BASE; + + /* + * Subtract specified amount of memory to hide so that it won't + * get "touched" at all by U-Boot. By fixing up gd->ram_size + * the Linux kernel should now get passed the now "corrected" + * memory size and won't touch it either. This should work + * for arch/ppc and arch/powerpc. Only Linux board ports in + * arch/powerpc with bootwrapper support, that recalculate the + * memory size from the SDRAM controller setup will have to + * get fixed. + */ + gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE; + + addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize(); + +#if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500)) + /* + * We need to make sure the location we intend to put secondary core + * boot code is reserved and not used by any part of u-boot + */ + if (addr > determine_mp_bootpg()) { + addr = determine_mp_bootpg(); + debug ("Reserving MP boot page to %08lx\n", addr); + } +#endif + +#ifdef CONFIG_LOGBUFFER +#ifndef CONFIG_ALT_LB_ADDR + /* reserve kernel log buffer */ + addr -= (LOGBUFF_RESERVE); + debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr); +#endif +#endif + +#ifdef CONFIG_PRAM + /* + * reserve protected RAM + */ + i = getenv_r ("pram", (char *)tmp, sizeof (tmp)); + reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM; + addr -= (reg << 10); /* size is in kB */ + debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr); +#endif /* CONFIG_PRAM */ + + /* round down to next 4 kB limit */ + addr &= ~(4096 - 1); + debug ("Top of RAM usable for U-Boot at: %08lx\n", addr); + +#ifdef CONFIG_LCD + /* reserve memory for LCD display (always full pages) */ + addr = lcd_setmem (addr); + gd->fb_base = addr; +#endif /* CONFIG_LCD */ + +#if defined(CONFIG_VIDEO) && defined(CONFIG_8xx) + /* reserve memory for video display (always full pages) */ + addr = video_setmem (addr); + gd->fb_base = addr; +#endif /* CONFIG_VIDEO */ + + /* + * reserve memory for U-Boot code, data & bss + * round down to next 4 kB limit + */ + addr -= len; + addr &= ~(4096 - 1); +#ifdef CONFIG_E500 + /* round down to next 64 kB limit so that IVPR stays aligned */ + addr &= ~(65536 - 1); +#endif + + debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr); + + /* + * reserve memory for malloc() arena + */ + addr_sp = addr - TOTAL_MALLOC_LEN; + debug ("Reserving %dk for malloc() at: %08lx\n", + TOTAL_MALLOC_LEN >> 10, addr_sp); + + /* + * (permanently) allocate a Board Info struct + * and a permanent copy of the "global" data + */ + addr_sp -= sizeof (bd_t); + bd = (bd_t *) addr_sp; + gd->bd = bd; + debug ("Reserving %zu Bytes for Board Info at: %08lx\n", + sizeof (bd_t), addr_sp); + addr_sp -= sizeof (gd_t); + id = (gd_t *) addr_sp; + debug ("Reserving %zu Bytes for Global Data at: %08lx\n", + sizeof (gd_t), addr_sp); + + /* + * Finally, we set up a new (bigger) stack. + * + * Leave some safety gap for SP, force alignment on 16 byte boundary + * Clear initial stack frame + */ + addr_sp -= 16; + addr_sp &= ~0xF; + s = (ulong *)addr_sp; + *s-- = 0; + *s-- = 0; + addr_sp = (ulong)s; + debug ("Stack Pointer at: %08lx\n", addr_sp); + + /* + * Save local variables to board info struct + */ + + bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */ + bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */ + +#ifdef CONFIG_IP860 + bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */ + bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */ +#elif defined CONFIG_MPC8220 + bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM memory */ + bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM memory */ +#else + bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */ + bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */ +#endif + +#if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \ + defined(CONFIG_E500) || defined(CONFIG_MPC86xx) + bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */ +#endif +#if defined(CONFIG_MPC5xxx) + bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ +#endif +#if defined(CONFIG_MPC83xx) + bd->bi_immrbar = CONFIG_SYS_IMMR; +#endif +#if defined(CONFIG_MPC8220) + bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ + bd->bi_inpfreq = gd->inp_clk; + bd->bi_pcifreq = gd->pci_clk; + bd->bi_vcofreq = gd->vco_clk; + bd->bi_pevfreq = gd->pev_clk; + bd->bi_flbfreq = gd->flb_clk; + + /* store bootparam to sram (backward compatible), here? */ + { + u32 *sram = (u32 *)CONFIG_SYS_SRAM_BASE; + *sram++ = gd->ram_size; + *sram++ = gd->bus_clk; + *sram++ = gd->inp_clk; + *sram++ = gd->cpu_clk; + *sram++ = gd->vco_clk; + *sram++ = gd->flb_clk; + *sram++ = 0xb8c3ba11; /* boot signature */ + } +#endif + + bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */ + + WATCHDOG_RESET (); + bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */ + bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */ +#if defined(CONFIG_CPM2) + bd->bi_cpmfreq = gd->cpm_clk; + bd->bi_brgfreq = gd->brg_clk; + bd->bi_sccfreq = gd->scc_clk; + bd->bi_vco = gd->vco_out; +#endif /* CONFIG_CPM2 */ +#if defined(CONFIG_MPC512X) + bd->bi_ipsfreq = gd->ips_clk; +#endif /* CONFIG_MPC512X */ +#if defined(CONFIG_MPC5xxx) + bd->bi_ipbfreq = gd->ipb_clk; + bd->bi_pcifreq = gd->pci_clk; +#endif /* CONFIG_MPC5xxx */ + bd->bi_baudrate = gd->baudrate; /* Console Baudrate */ + +#ifdef CONFIG_SYS_EXTBDINFO + strncpy ((char *)bd->bi_s_version, "1.2", sizeof (bd->bi_s_version)); + strncpy ((char *)bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version)); + + bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */ + bd->bi_plb_busfreq = gd->bus_clk; +#if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \ + defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) + bd->bi_pci_busfreq = get_PCI_freq (); + bd->bi_opbfreq = get_OPB_freq (); +#elif defined(CONFIG_XILINX_405) + bd->bi_pci_busfreq = get_PCI_freq (); +#endif +#endif + + debug ("New Stack Pointer is: %08lx\n", addr_sp); + + WATCHDOG_RESET (); + +#ifdef CONFIG_POST + post_bootmode_init(); + post_run (NULL, POST_ROM | post_bootmode_get(0)); +#endif + + WATCHDOG_RESET(); + + gd->relocaddr = addr; /* Record relocation address, useful for debug */ + + memcpy (id, (void *)gd, sizeof (gd_t)); + + relocate_code (addr_sp, id, addr); + + /* NOTREACHED - relocate_code() does not return */ +} + +/************************************************************************ + * + * This is the next part if the initialization sequence: we are now + * running from RAM and have a "normal" C environment, i. e. global + * data can be written, BSS has been cleared, the stack size in not + * that critical any more, etc. + * + ************************************************************************ + */ +void board_init_r (gd_t *id, ulong dest_addr) +{ + char *s; + bd_t *bd; + ulong malloc_start; + +#ifndef CONFIG_SYS_NO_FLASH + ulong flash_size; +#endif + + gd = id; /* initialize RAM version of global data */ + bd = gd->bd; + + gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ + + /* The Malloc area is immediately below the monitor copy in DRAM */ + malloc_start = dest_addr - TOTAL_MALLOC_LEN; + +#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) + /* + * The gd->cpu pointer is set to an address in flash before relocation. + * We need to update it to point to the same CPU entry in RAM. + */ + gd->cpu += dest_addr - CONFIG_SYS_MONITOR_BASE; +#endif + +#ifdef CONFIG_SERIAL_MULTI + serial_initialize(); +#endif + + debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr); + + WATCHDOG_RESET (); + + /* + * Setup trap handlers + */ + trap_init (dest_addr); + +#ifdef CONFIG_ADDR_MAP + init_addr_map(); +#endif + +#if defined(CONFIG_BOARD_EARLY_INIT_R) + board_early_init_r (); +#endif + + monitor_flash_len = (ulong)&__init_end - dest_addr; + + WATCHDOG_RESET (); + +#ifdef CONFIG_LOGBUFFER + logbuff_init_ptrs (); +#endif +#ifdef CONFIG_POST + post_output_backlog (); +#endif + + WATCHDOG_RESET(); + +#if defined(CONFIG_SYS_DELAYED_ICACHE) || defined(CONFIG_MPC83xx) + icache_enable (); /* it's time to enable the instruction cache */ +#endif + +#if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500) + unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */ +#endif + +#if defined(CONFIG_BAB7xx) || defined(CONFIG_CPC45) + /* + * Do PCI configuration on BAB7xx and CPC45 _before_ the flash + * gets initialised, because we need the ISA resp. PCI_to_LOCAL bus + * bridge there. + */ + pci_init (); +#endif +#if defined(CONFIG_BAB7xx) + /* + * Initialise the ISA bridge + */ + initialise_w83c553f (); +#endif + + asm ("sync ; isync"); + + mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN); + +#if !defined(CONFIG_SYS_NO_FLASH) + puts ("FLASH: "); + + if ((flash_size = flash_init ()) > 0) { +# ifdef CONFIG_SYS_FLASH_CHECKSUM + print_size (flash_size, ""); + /* + * Compute and print flash CRC if flashchecksum is set to 'y' + * + * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX + */ + s = getenv ("flashchecksum"); + if (s && (*s == 'y')) { + printf (" CRC: %08X", + crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size) + ); + } + putc ('\n'); +# else /* !CONFIG_SYS_FLASH_CHECKSUM */ + print_size (flash_size, "\n"); +# endif /* CONFIG_SYS_FLASH_CHECKSUM */ + } else { + puts (failed); + hang (); + } + + bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */ + bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */ + +#if defined(CONFIG_SYS_UPDATE_FLASH_SIZE) + /* Make a update of the Memctrl. */ + update_flash_size (flash_size); +#endif + + +# if defined(CONFIG_PCU_E) || defined(CONFIG_OXC) || defined(CONFIG_RMU) + /* flash mapped at end of memory map */ + bd->bi_flashoffset = TEXT_BASE + flash_size; +# elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE + bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */ +# else + bd->bi_flashoffset = 0; +# endif +#else /* CONFIG_SYS_NO_FLASH */ + + bd->bi_flashsize = 0; + bd->bi_flashstart = 0; + bd->bi_flashoffset = 0; +#endif /* !CONFIG_SYS_NO_FLASH */ + + WATCHDOG_RESET (); + + /* initialize higher level parts of CPU like time base and timers */ + cpu_init_r (); + + WATCHDOG_RESET (); + +#ifdef CONFIG_SPI +# if !defined(CONFIG_ENV_IS_IN_EEPROM) + spi_init_f (); +# endif + spi_init_r (); +#endif + +#if defined(CONFIG_CMD_NAND) + WATCHDOG_RESET (); + puts ("NAND: "); + nand_init(); /* go init the NAND */ +#endif + + /* relocate environment function pointers etc. */ + env_relocate (); + + /* + * Fill in missing fields of bd_info. + * We do this here, where we have "normal" access to the + * environment; we used to do this still running from ROM, + * where had to use getenv_r(), which can be pretty slow when + * the environment is in EEPROM. + */ + +#if defined(CONFIG_SYS_EXTBDINFO) +#if defined(CONFIG_405GP) || defined(CONFIG_405EP) +#if defined(CONFIG_I2CFAST) + /* + * set bi_iic_fast for linux taking environment variable + * "i2cfast" into account + */ + { + char *s = getenv ("i2cfast"); + if (s && ((*s == 'y') || (*s == 'Y'))) { + bd->bi_iic_fast[0] = 1; + bd->bi_iic_fast[1] = 1; + } else { + bd->bi_iic_fast[0] = 0; + bd->bi_iic_fast[1] = 0; + } + } +#else + bd->bi_iic_fast[0] = 0; + bd->bi_iic_fast[1] = 0; +#endif /* CONFIG_I2CFAST */ +#endif /* CONFIG_405GP, CONFIG_405EP */ +#endif /* CONFIG_SYS_EXTBDINFO */ + +#if defined(CONFIG_SC3) + sc3_read_eeprom(); +#endif + +#if defined (CONFIG_ID_EEPROM) || defined (CONFIG_SYS_I2C_MAC_OFFSET) + mac_read_from_eeprom(); +#endif + +#ifdef CONFIG_HERMES + if ((gd->board_type >> 16) == 2) + bd->bi_ethspeed = gd->board_type & 0xFFFF; + else + bd->bi_ethspeed = 0xFFFF; +#endif + +#ifdef CONFIG_CMD_NET + /* kept around for legacy kernels only ... ignore the next section */ + eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr); +#ifdef CONFIG_HAS_ETH1 + eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr); +#endif +#ifdef CONFIG_HAS_ETH2 + eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr); +#endif +#ifdef CONFIG_HAS_ETH3 + eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr); +#endif +#ifdef CONFIG_HAS_ETH4 + eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr); +#endif +#ifdef CONFIG_HAS_ETH5 + eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr); +#endif +#endif /* CONFIG_CMD_NET */ + + /* IP Address */ + bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); + + WATCHDOG_RESET (); + +#if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx) && !defined(CONFIG_CPC45) + /* + * Do pci configuration + */ + pci_init (); +#endif + +/** leave this here (after malloc(), environment and PCI are working) **/ + /* Initialize stdio devices */ + stdio_init (); + + /* Initialize the jump table for applications */ + jumptable_init (); + +#if defined(CONFIG_API) + /* Initialize API */ + api_init (); +#endif + + /* Initialize the console (after the relocation and devices init) */ + console_init_r (); + +#if defined(CONFIG_MISC_INIT_R) + /* miscellaneous platform dependent initialisations */ + misc_init_r (); +#endif + +#ifdef CONFIG_HERMES + if (bd->bi_ethspeed != 0xFFFF) + hermes_start_lxt980 ((int) bd->bi_ethspeed); +#endif + +#if defined(CONFIG_CMD_KGDB) + WATCHDOG_RESET (); + puts ("KGDB: "); + kgdb_init (); +#endif + + debug ("U-Boot relocated to %08lx\n", dest_addr); + + /* + * Enable Interrupts + */ + interrupt_init (); + + /* Must happen after interrupts are initialized since + * an irq handler gets installed + */ +#ifdef CONFIG_SERIAL_SOFTWARE_FIFO + serial_buffered_init(); +#endif + +#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT) + status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING); +#endif + + udelay (20); + + set_timer (0); + + /* Initialize from environment */ + if ((s = getenv ("loadaddr")) != NULL) { + load_addr = simple_strtoul (s, NULL, 16); + } +#if defined(CONFIG_CMD_NET) + if ((s = getenv ("bootfile")) != NULL) { + copy_filename (BootFile, s, sizeof (BootFile)); + } +#endif + + WATCHDOG_RESET (); + +#if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */ + dtt_init (); +#endif +#if defined(CONFIG_CMD_SCSI) + WATCHDOG_RESET (); + puts ("SCSI: "); + scsi_init (); +#endif + +#ifdef CONFIG_GENERIC_MMC + WATCHDOG_RESET (); + puts ("MMC: "); + mmc_initialize (bd); +#endif + +#if defined(CONFIG_CMD_DOC) + WATCHDOG_RESET (); + puts ("DOC: "); + doc_init (); +#endif + +#ifdef CONFIG_BITBANGMII + bb_miiphy_init(); +#endif +#if defined(CONFIG_CMD_NET) +#if defined(CONFIG_NET_MULTI) + WATCHDOG_RESET (); + puts ("Net: "); +#endif + eth_initialize (bd); +#endif + +#if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R) + WATCHDOG_RESET (); + debug ("Reset Ethernet PHY\n"); + reset_phy (); +#endif + +#ifdef CONFIG_POST + post_run (NULL, POST_RAM | post_bootmode_get(0)); +#endif + +#if defined(CONFIG_CMD_PCMCIA) \ + && !defined(CONFIG_CMD_IDE) + WATCHDOG_RESET (); + puts ("PCMCIA:"); + pcmcia_init (); +#endif + +#if defined(CONFIG_CMD_IDE) + WATCHDOG_RESET (); +# ifdef CONFIG_IDE_8xx_PCCARD + puts ("PCMCIA:"); +# else + puts ("IDE: "); +#endif +#if defined(CONFIG_START_IDE) + if (board_start_ide()) + ide_init (); +#else + ide_init (); +#endif +#endif + +#ifdef CONFIG_LAST_STAGE_INIT + WATCHDOG_RESET (); + /* + * Some parts can be only initialized if all others (like + * Interrupts) are up and running (i.e. the PC-style ISA + * keyboard). + */ + last_stage_init (); +#endif + +#if defined(CONFIG_CMD_BEDBUG) + WATCHDOG_RESET (); + bedbug_init (); +#endif + +#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER) + /* + * Export available size of memory for Linux, + * taking into account the protected RAM at top of memory + */ + { + ulong pram; + uchar memsz[32]; +#ifdef CONFIG_PRAM + char *s; + + if ((s = getenv ("pram")) != NULL) { + pram = simple_strtoul (s, NULL, 10); + } else { + pram = CONFIG_PRAM; + } +#else + pram=0; +#endif +#ifdef CONFIG_LOGBUFFER +#ifndef CONFIG_ALT_LB_ADDR + /* Also take the logbuffer into account (pram is in kB) */ + pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024; +#endif +#endif + sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram); + setenv ("mem", (char *)memsz); + } +#endif + +#ifdef CONFIG_PS2KBD + puts ("PS/2: "); + kbd_init(); +#endif + +#ifdef CONFIG_MODEM_SUPPORT + { + extern int do_mdm_init; + do_mdm_init = gd->do_mdm_init; + } +#endif + + /* Initialization complete - start the monitor */ + + /* main_loop() can return to retry autoboot, if so just run it again. */ + for (;;) { + WATCHDOG_RESET (); + main_loop (); + } + + /* NOTREACHED - no way out of command loop except booting */ +} + +void hang (void) +{ + puts ("### ERROR ### Please RESET the board ###\n"); + show_boot_progress(-30); + for (;;); +} + + +#if 0 /* We could use plain global data, but the resulting code is bigger */ +/* + * Pointer to initial global data area + * + * Here we initialize it. + */ +#undef XTRN_DECLARE_GLOBAL_DATA_PTR +#define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */ +DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); +#endif /* 0 */ + +/************************************************************************/ diff --git a/arch/ppc/lib/bootm.c b/arch/ppc/lib/bootm.c new file mode 100644 index 0000000..0685a93 --- /dev/null +++ b/arch/ppc/lib/bootm.c @@ -0,0 +1,367 @@ +/* + * (C) Copyright 2008 Semihalf + * + * (C) Copyright 2000-2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <image.h> +#include <malloc.h> +#include <u-boot/zlib.h> +#include <bzlib.h> +#include <environment.h> +#include <asm/byteorder.h> + +#if defined(CONFIG_OF_LIBFDT) +#include <fdt.h> +#include <libfdt.h> +#include <fdt_support.h> + +#endif + +#ifdef CONFIG_SYS_INIT_RAM_LOCK +#include <asm/cache.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); +extern ulong get_effective_memsize(void); +static ulong get_sp (void); +static void set_clocks_in_mhz (bd_t *kbd); + +#ifndef CONFIG_SYS_LINUX_LOWMEM_MAX_SIZE +#define CONFIG_SYS_LINUX_LOWMEM_MAX_SIZE (768*1024*1024) +#endif + +static void boot_jump_linux(bootm_headers_t *images) +{ + void (*kernel)(bd_t *, ulong r4, ulong r5, ulong r6, + ulong r7, ulong r8, ulong r9); +#ifdef CONFIG_OF_LIBFDT + char *of_flat_tree = images->ft_addr; +#endif + + kernel = (void (*)(bd_t *, ulong, ulong, ulong, + ulong, ulong, ulong))images->ep; + debug ("## Transferring control to Linux (at address %08lx) ...\n", + (ulong)kernel); + + show_boot_progress (15); + +#if defined(CONFIG_SYS_INIT_RAM_LOCK) && !defined(CONFIG_E500) + unlock_ram_in_cache(); +#endif + +#if defined(CONFIG_OF_LIBFDT) + if (of_flat_tree) { /* device tree; boot new style */ + /* + * Linux Kernel Parameters (passing device tree): + * r3: pointer to the fdt + * r4: 0 + * r5: 0 + * r6: epapr magic + * r7: size of IMA in bytes + * r8: 0 + * r9: 0 + */ +#if defined(CONFIG_85xx) || defined(CONFIG_440) + #define EPAPR_MAGIC (0x45504150) +#else + #define EPAPR_MAGIC (0x65504150) +#endif + + debug (" Booting using OF flat tree...\n"); + WATCHDOG_RESET (); + (*kernel) ((bd_t *)of_flat_tree, 0, 0, EPAPR_MAGIC, + CONFIG_SYS_BOOTMAPSZ, 0, 0); + /* does not return */ + } else +#endif + { + /* + * Linux Kernel Parameters (passing board info data): + * r3: ptr to board info data + * r4: initrd_start or 0 if no initrd + * r5: initrd_end - unused if r4 is 0 + * r6: Start of command line string + * r7: End of command line string + * r8: 0 + * r9: 0 + */ + ulong cmd_start = images->cmdline_start; + ulong cmd_end = images->cmdline_end; + ulong initrd_start = images->initrd_start; + ulong initrd_end = images->initrd_end; + bd_t *kbd = images->kbd; + + debug (" Booting using board info...\n"); + WATCHDOG_RESET (); + (*kernel) (kbd, initrd_start, initrd_end, + cmd_start, cmd_end, 0, 0); + /* does not return */ + } + return ; +} + +void arch_lmb_reserve(struct lmb *lmb) +{ + phys_size_t bootm_size; + ulong size, sp, bootmap_base; + + bootmap_base = getenv_bootm_low(); + bootm_size = getenv_bootm_size(); + +#ifdef DEBUG + if (((u64)bootmap_base + bootm_size) > + (CONFIG_SYS_SDRAM_BASE + (u64)gd->ram_size)) + puts("WARNING: bootm_low + bootm_size exceed total memory\n"); + if ((bootmap_base + bootm_size) > get_effective_memsize()) + puts("WARNING: bootm_low + bootm_size exceed eff. memory\n"); +#endif + + size = min(bootm_size, get_effective_memsize()); + size = min(size, CONFIG_SYS_LINUX_LOWMEM_MAX_SIZE); + + if (size < bootm_size) { + ulong base = bootmap_base + size; + printf("WARNING: adjusting available memory to %lx\n", size); + lmb_reserve(lmb, base, bootm_size - size); + } + + /* + * Booting a (Linux) kernel image + * + * Allocate space for command line and board info - the + * address should be as high as possible within the reach of + * the kernel (see CONFIG_SYS_BOOTMAPSZ settings), but in unused + * memory, which means far enough below the current stack + * pointer. + */ + sp = get_sp(); + debug ("## Current stack ends at 0x%08lx\n", sp); + + /* adjust sp by 1K to be safe */ + sp -= 1024; + lmb_reserve(lmb, sp, (CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - sp)); + + return ; +} + +static void boot_prep_linux(void) +{ +#ifdef CONFIG_MP + /* if we are MP make sure to flush the dcache() to any changes are made + * visibile to all other cores */ + flush_dcache(); +#endif + return ; +} + +static int boot_cmdline_linux(bootm_headers_t *images) +{ + ulong bootmap_base = getenv_bootm_low(); + ulong of_size = images->ft_len; + struct lmb *lmb = &images->lmb; + ulong *cmd_start = &images->cmdline_start; + ulong *cmd_end = &images->cmdline_end; + + int ret = 0; + + if (!of_size) { + /* allocate space and init command line */ + ret = boot_get_cmdline (lmb, cmd_start, cmd_end, bootmap_base); + if (ret) { + puts("ERROR with allocation of cmdline\n"); + return ret; + } + } + + return ret; +} + +static int boot_bd_t_linux(bootm_headers_t *images) +{ + ulong bootmap_base = getenv_bootm_low(); + ulong of_size = images->ft_len; + struct lmb *lmb = &images->lmb; + bd_t **kbd = &images->kbd; + + int ret = 0; + + if (!of_size) { + /* allocate space for kernel copy of board info */ + ret = boot_get_kbd (lmb, kbd, bootmap_base); + if (ret) { + puts("ERROR with allocation of kernel bd\n"); + return ret; + } + set_clocks_in_mhz(*kbd); + } + + return ret; +} + +static int boot_body_linux(bootm_headers_t *images) +{ + ulong rd_len; + struct lmb *lmb = &images->lmb; + ulong *initrd_start = &images->initrd_start; + ulong *initrd_end = &images->initrd_end; +#if defined(CONFIG_OF_LIBFDT) + ulong bootmap_base = getenv_bootm_low(); + ulong of_size = images->ft_len; + char **of_flat_tree = &images->ft_addr; +#endif + + int ret; + + /* allocate space and init command line */ + ret = boot_cmdline_linux(images); + if (ret) + return ret; + + /* allocate space for kernel copy of board info */ + ret = boot_bd_t_linux(images); + if (ret) + return ret; + + rd_len = images->rd_end - images->rd_start; + ret = boot_ramdisk_high (lmb, images->rd_start, rd_len, initrd_start, initrd_end); + if (ret) + return ret; + +#if defined(CONFIG_OF_LIBFDT) + ret = boot_relocate_fdt(lmb, bootmap_base, of_flat_tree, &of_size); + if (ret) + return ret; + + /* + * Add the chosen node if it doesn't exist, add the env and bd_t + * if the user wants it (the logic is in the subroutines). + */ + if (of_size) { + if (fdt_chosen(*of_flat_tree, 1) < 0) { + puts ("ERROR: "); + puts ("/chosen node create failed"); + puts (" - must RESET the board to recover.\n"); + return -1; + } +#ifdef CONFIG_OF_BOARD_SETUP + /* Call the board-specific fixup routine */ + ft_board_setup(*of_flat_tree, gd->bd); +#endif + + /* Delete the old LMB reservation */ + lmb_free(lmb, (phys_addr_t)(u32)*of_flat_tree, + (phys_size_t)fdt_totalsize(*of_flat_tree)); + + ret = fdt_resize(*of_flat_tree); + if (ret < 0) + return ret; + of_size = ret; + + if (*initrd_start && *initrd_end) + of_size += FDT_RAMDISK_OVERHEAD; + /* Create a new LMB reservation */ + lmb_reserve(lmb, (ulong)*of_flat_tree, of_size); + + /* fixup the initrd now that we know where it should be */ + if (*initrd_start && *initrd_end) + fdt_initrd(*of_flat_tree, *initrd_start, *initrd_end, 1); + } +#endif /* CONFIG_OF_LIBFDT */ + return 0; +} + +__attribute__((noinline)) +int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) +{ + int ret; + + if (flag & BOOTM_STATE_OS_CMDLINE) { + boot_cmdline_linux(images); + return 0; + } + + if (flag & BOOTM_STATE_OS_BD_T) { + boot_bd_t_linux(images); + return 0; + } + + if (flag & BOOTM_STATE_OS_PREP) { + boot_prep_linux(); + return 0; + } + + if (flag & BOOTM_STATE_OS_GO) { + boot_jump_linux(images); + return 0; + } + + boot_prep_linux(); + ret = boot_body_linux(images); + if (ret) + return ret; + boot_jump_linux(images); + + return 0; +} + +static ulong get_sp (void) +{ + ulong sp; + + asm( "mr %0,1": "=r"(sp) : ); + return sp; +} + +static void set_clocks_in_mhz (bd_t *kbd) +{ + char *s; + + if ((s = getenv ("clocks_in_mhz")) != NULL) { + /* convert all clock information to MHz */ + kbd->bi_intfreq /= 1000000L; + kbd->bi_busfreq /= 1000000L; +#if defined(CONFIG_MPC8220) + kbd->bi_inpfreq /= 1000000L; + kbd->bi_pcifreq /= 1000000L; + kbd->bi_pevfreq /= 1000000L; + kbd->bi_flbfreq /= 1000000L; + kbd->bi_vcofreq /= 1000000L; +#endif +#if defined(CONFIG_CPM2) + kbd->bi_cpmfreq /= 1000000L; + kbd->bi_brgfreq /= 1000000L; + kbd->bi_sccfreq /= 1000000L; + kbd->bi_vco /= 1000000L; +#endif +#if defined(CONFIG_MPC5xxx) + kbd->bi_ipbfreq /= 1000000L; + kbd->bi_pcifreq /= 1000000L; +#endif /* CONFIG_MPC5xxx */ + } +} diff --git a/arch/ppc/lib/cache.c b/arch/ppc/lib/cache.c new file mode 100644 index 0000000..338b08b --- /dev/null +++ b/arch/ppc/lib/cache.c @@ -0,0 +1,53 @@ +/* + * (C) Copyright 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/cache.h> +#include <watchdog.h> + +void flush_cache(ulong start_addr, ulong size) +{ +#ifndef CONFIG_5xx + ulong addr, start, end; + + start = start_addr & ~(CONFIG_SYS_CACHELINE_SIZE - 1); + end = start_addr + size - 1; + + for (addr = start; (addr <= end) && (addr >= start); + addr += CONFIG_SYS_CACHELINE_SIZE) { + asm volatile("dcbst 0,%0" : : "r" (addr) : "memory"); + WATCHDOG_RESET(); + } + /* wait for all dcbst to complete on bus */ + asm volatile("sync" : : : "memory"); + + for (addr = start; (addr <= end) && (addr >= start); + addr += CONFIG_SYS_CACHELINE_SIZE) { + asm volatile("icbi 0,%0" : : "r" (addr) : "memory"); + WATCHDOG_RESET(); + } + asm volatile("sync" : : : "memory"); + /* flush prefetch queue */ + asm volatile("isync" : : : "memory"); +#endif +} diff --git a/arch/ppc/lib/extable.c b/arch/ppc/lib/extable.c new file mode 100644 index 0000000..7408d5c --- /dev/null +++ b/arch/ppc/lib/extable.c @@ -0,0 +1,83 @@ +/* + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <common.h> + +/* + * The exception table consists of pairs of addresses: the first is the + * address of an instruction that is allowed to fault, and the second is + * the address at which the program should continue. No registers are + * modified, so it is entirely up to the continuation code to figure out + * what to do. + * + * All the routines below use bits of fixup code that are out of line + * with the main instruction path. This means when everything is well, + * we don't even have to jump over them. Further, they do not intrude + * on our cache or tlb entries. + */ + +DECLARE_GLOBAL_DATA_PTR; + +struct exception_table_entry +{ + unsigned long insn, fixup; +}; + +extern const struct exception_table_entry __start___ex_table[]; +extern const struct exception_table_entry __stop___ex_table[]; + +static inline unsigned long +search_one_table(const struct exception_table_entry *first, + const struct exception_table_entry *last, + unsigned long value) +{ + long diff; + while (first <= last) { + diff = first->insn - value; + if (diff == 0) + return first->fixup; + first++; + } + + return 0; +} + +int ex_tab_message = 1; + +unsigned long +search_exception_table(unsigned long addr) +{ + unsigned long ret; + + /* There is only the kernel to search. */ + ret = search_one_table(__start___ex_table, __stop___ex_table-1, addr); + /* if the serial port does not hang in exception, printf can be used */ +#if !defined(CONFIG_SYS_SERIAL_HANG_IN_EXCEPTION) + if (ex_tab_message) + debug("Bus Fault @ 0x%08lx, fixup 0x%08lx\n", addr, ret); +#endif + if (ret) return ret; + + return 0; +} diff --git a/arch/ppc/lib/interrupts.c b/arch/ppc/lib/interrupts.c new file mode 100644 index 0000000..f603170 --- /dev/null +++ b/arch/ppc/lib/interrupts.c @@ -0,0 +1,153 @@ +/* + * (C) Copyright 2000-2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2003 + * Gleb Natapov <gnatapov@mrv.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/processor.h> +#include <watchdog.h> +#ifdef CONFIG_STATUS_LED +#include <status_led.h> +#endif + +#ifdef CONFIG_SHOW_ACTIVITY +void board_show_activity (ulong) __attribute__((weak, alias("__board_show_activity"))); + +void __board_show_activity (ulong dummy) +{ + return; +} +#endif /* CONFIG_SHOW_ACTIVITY */ + +#ifndef CONFIG_SYS_WATCHDOG_FREQ +#define CONFIG_SYS_WATCHDOG_FREQ (CONFIG_SYS_HZ / 2) +#endif + +extern int interrupt_init_cpu (unsigned *); +extern void timer_interrupt_cpu (struct pt_regs *); + +static unsigned decrementer_count; /* count value for 1e6/HZ microseconds */ + +static __inline__ unsigned long get_msr (void) +{ + unsigned long msr; + + asm volatile ("mfmsr %0":"=r" (msr):); + + return msr; +} + +static __inline__ void set_msr (unsigned long msr) +{ + asm volatile ("mtmsr %0"::"r" (msr)); +} + +static __inline__ unsigned long get_dec (void) +{ + unsigned long val; + + asm volatile ("mfdec %0":"=r" (val):); + + return val; +} + + +static __inline__ void set_dec (unsigned long val) +{ + if (val) + asm volatile ("mtdec %0"::"r" (val)); +} + + +void enable_interrupts (void) +{ + set_msr (get_msr () | MSR_EE); +} + +/* returns flag if MSR_EE was set before */ +int disable_interrupts (void) +{ + ulong msr = get_msr (); + + set_msr (msr & ~MSR_EE); + return ((msr & MSR_EE) != 0); +} + +int interrupt_init (void) +{ + int ret; + + /* call cpu specific function from $(CPU)/interrupts.c */ + ret = interrupt_init_cpu (&decrementer_count); + + if (ret) + return ret; + + set_dec (decrementer_count); + + set_msr (get_msr () | MSR_EE); + + return (0); +} + +static volatile ulong timestamp = 0; + +void timer_interrupt (struct pt_regs *regs) +{ + /* call cpu specific function from $(CPU)/interrupts.c */ + timer_interrupt_cpu (regs); + + /* Restore Decrementer Count */ + set_dec (decrementer_count); + + timestamp++; + +#if defined(CONFIG_WATCHDOG) || defined (CONFIG_HW_WATCHDOG) + if ((timestamp % (CONFIG_SYS_WATCHDOG_FREQ)) == 0) + WATCHDOG_RESET (); +#endif /* CONFIG_WATCHDOG || CONFIG_HW_WATCHDOG */ + +#ifdef CONFIG_STATUS_LED + status_led_tick (timestamp); +#endif /* CONFIG_STATUS_LED */ + +#ifdef CONFIG_SHOW_ACTIVITY + board_show_activity (timestamp); +#endif /* CONFIG_SHOW_ACTIVITY */ +} + +void reset_timer (void) +{ + timestamp = 0; +} + +ulong get_timer (ulong base) +{ + return (timestamp - base); +} + +void set_timer (ulong t) +{ + timestamp = t; +} diff --git a/arch/ppc/lib/kgdb.c b/arch/ppc/lib/kgdb.c new file mode 100644 index 0000000..d3eb1f3 --- /dev/null +++ b/arch/ppc/lib/kgdb.c @@ -0,0 +1,321 @@ +#include <common.h> +#include <command.h> +#include <kgdb.h> +#include <asm/signal.h> +#include <asm/processor.h> + +#define PC_REGNUM 64 +#define SP_REGNUM 1 + +void breakinst(void); + +int +kgdb_setjmp(long *buf) +{ + asm ("mflr 0; stw 0,0(%0);" + "stw 1,4(%0); stw 2,8(%0);" + "mfcr 0; stw 0,12(%0);" + "stmw 13,16(%0)" + : : "r" (buf)); + /* XXX should save fp regs as well */ + return 0; +} + +void +kgdb_longjmp(long *buf, int val) +{ + if (val == 0) + val = 1; + asm ("lmw 13,16(%0);" + "lwz 0,12(%0); mtcrf 0x38,0;" + "lwz 0,0(%0); lwz 1,4(%0); lwz 2,8(%0);" + "mtlr 0; mr 3,%1" + : : "r" (buf), "r" (val)); +} + +static inline unsigned long +get_msr(void) +{ + unsigned long msr; + asm volatile("mfmsr %0" : "=r" (msr):); + return msr; +} + +static inline void +set_msr(unsigned long msr) +{ + asm volatile("mtmsr %0" : : "r" (msr)); +} + +/* Convert the SPARC hardware trap type code to a unix signal number. */ +/* + * This table contains the mapping between PowerPC hardware trap types, and + * signals, which are primarily what GDB understands. + */ +static struct hard_trap_info +{ + unsigned int tt; /* Trap type code for powerpc */ + unsigned char signo; /* Signal that we map this trap into */ +} hard_trap_info[] = { + { 0x200, SIGSEGV }, /* machine check */ + { 0x300, SIGSEGV }, /* address error (store) */ + { 0x400, SIGBUS }, /* instruction bus error */ + { 0x500, SIGINT }, /* interrupt */ + { 0x600, SIGBUS }, /* alingment */ + { 0x700, SIGTRAP }, /* breakpoint trap */ + { 0x800, SIGFPE }, /* fpu unavail */ + { 0x900, SIGALRM }, /* decrementer */ + { 0xa00, SIGILL }, /* reserved */ + { 0xb00, SIGILL }, /* reserved */ + { 0xc00, SIGCHLD }, /* syscall */ + { 0xd00, SIGTRAP }, /* single-step/watch */ + { 0xe00, SIGFPE }, /* fp assist */ + { 0, 0} /* Must be last */ +}; + +static int +computeSignal(unsigned int tt) +{ + struct hard_trap_info *ht; + + for (ht = hard_trap_info; ht->tt && ht->signo; ht++) + if (ht->tt == tt) + return ht->signo; + + return SIGHUP; /* default for things we don't know about */ +} + +void +kgdb_enter(struct pt_regs *regs, kgdb_data *kdp) +{ + unsigned long msr; + + kdp->private[0] = msr = get_msr(); + set_msr(msr & ~MSR_EE); /* disable interrupts */ + + if (regs->nip == (unsigned long)breakinst) { + /* Skip over breakpoint trap insn */ + regs->nip += 4; + } + regs->msr &= ~MSR_SE; + + /* reply to host that an exception has occurred */ + kdp->sigval = computeSignal(regs->trap); + + kdp->nregs = 2; + + kdp->regs[0].num = PC_REGNUM; + kdp->regs[0].val = regs->nip; + + kdp->regs[1].num = SP_REGNUM; + kdp->regs[1].val = regs->gpr[SP_REGNUM]; +} + +void +kgdb_exit(struct pt_regs *regs, kgdb_data *kdp) +{ + unsigned long msr = kdp->private[0]; + + if (kdp->extype & KGDBEXIT_WITHADDR) + regs->nip = kdp->exaddr; + + switch (kdp->extype & KGDBEXIT_TYPEMASK) { + + case KGDBEXIT_KILL: + case KGDBEXIT_CONTINUE: + set_msr(msr); + break; + + case KGDBEXIT_SINGLE: + regs->msr |= MSR_SE; +#if 0 + set_msr(msr | MSR_SE); +#endif + break; + } +} + +int +kgdb_trap(struct pt_regs *regs) +{ + return (regs->trap); +} + +/* return the value of the CPU registers. + * some of them are non-PowerPC names :( + * they are stored in gdb like: + * struct { + * u32 gpr[32]; + * f64 fpr[32]; + * u32 pc, ps, cnd, lr; (ps=msr) + * u32 cnt, xer, mq; + * } + */ + +#define SPACE_REQUIRED ((32*4)+(32*8)+(6*4)) + +#ifdef CONFIG_8260 +/* store floating double indexed */ +#define STFDI(n,p) __asm__ __volatile__ ("stfd " #n ",%0" : "=o"(p[2*n])) +/* store floating double multiple */ +#define STFDM(p) { STFDI( 0,p); STFDI( 1,p); STFDI( 2,p); STFDI( 3,p); \ + STFDI( 4,p); STFDI( 5,p); STFDI( 6,p); STFDI( 7,p); \ + STFDI( 8,p); STFDI( 9,p); STFDI(10,p); STFDI(11,p); \ + STFDI(12,p); STFDI(13,p); STFDI(14,p); STFDI(15,p); \ + STFDI(16,p); STFDI(17,p); STFDI(18,p); STFDI(19,p); \ + STFDI(20,p); STFDI(21,p); STFDI(22,p); STFDI(23,p); \ + STFDI(24,p); STFDI(25,p); STFDI(26,p); STFDI(27,p); \ + STFDI(28,p); STFDI(29,p); STFDI(30,p); STFDI(31,p); } +#endif + +int +kgdb_getregs(struct pt_regs *regs, char *buf, int max) +{ + int i; + unsigned long *ptr = (unsigned long *)buf; + + if (max < SPACE_REQUIRED) + kgdb_error(KGDBERR_NOSPACE); + + if ((unsigned long)ptr & 3) + kgdb_error(KGDBERR_ALIGNFAULT); + + /* General Purpose Regs */ + for (i = 0; i < 32; i++) + *ptr++ = regs->gpr[i]; + + /* Floating Point Regs */ +#ifdef CONFIG_8260 + STFDM(ptr); + ptr += 32*2; +#else + for (i = 0; i < 32; i++) { + *ptr++ = 0; + *ptr++ = 0; + } +#endif + + /* pc, msr, cr, lr, ctr, xer, (mq is unused) */ + *ptr++ = regs->nip; + *ptr++ = regs->msr; + *ptr++ = regs->ccr; + *ptr++ = regs->link; + *ptr++ = regs->ctr; + *ptr++ = regs->xer; + + return (SPACE_REQUIRED); +} + +/* set the value of the CPU registers */ + +#ifdef CONFIG_8260 +/* load floating double */ +#define LFD(n,v) __asm__ __volatile__ ("lfd " #n ",%0" :: "o"(v)) +/* load floating double indexed */ +#define LFDI(n,p) __asm__ __volatile__ ("lfd " #n ",%0" :: "o"((p)[2*n])) +/* load floating double multiple */ +#define LFDM(p) { LFDI( 0,p); LFDI( 1,p); LFDI( 2,p); LFDI( 3,p); \ + LFDI( 4,p); LFDI( 5,p); LFDI( 6,p); LFDI( 7,p); \ + LFDI( 8,p); LFDI( 9,p); LFDI(10,p); LFDI(11,p); \ + LFDI(12,p); LFDI(13,p); LFDI(14,p); LFDI(15,p); \ + LFDI(16,p); LFDI(17,p); LFDI(18,p); LFDI(19,p); \ + LFDI(20,p); LFDI(21,p); LFDI(22,p); LFDI(23,p); \ + LFDI(24,p); LFDI(25,p); LFDI(26,p); LFDI(27,p); \ + LFDI(28,p); LFDI(29,p); LFDI(30,p); LFDI(31,p); } +#endif + +void +kgdb_putreg(struct pt_regs *regs, int regno, char *buf, int length) +{ + unsigned long *ptr = (unsigned long *)buf; + + if (regno < 0 || regno >= 70) + kgdb_error(KGDBERR_BADPARAMS); + else if (regno >= 32 && regno < 64) { + if (length < 8) + kgdb_error(KGDBERR_NOSPACE); + } + else { + if (length < 4) + kgdb_error(KGDBERR_NOSPACE); + } + + if ((unsigned long)ptr & 3) + kgdb_error(KGDBERR_ALIGNFAULT); + + if (regno >= 0 && regno < 32) + regs->gpr[regno] = *ptr; + else switch (regno) { + +#ifdef CONFIG_8260 +#define caseF(n) \ + case (n) + 32: LFD(n, *ptr); break; + +caseF( 0) caseF( 1) caseF( 2) caseF( 3) caseF( 4) caseF( 5) caseF( 6) caseF( 7) +caseF( 8) caseF( 9) caseF(10) caseF(11) caseF(12) caseF(13) caseF(14) caseF(15) +caseF(16) caseF(17) caseF(18) caseF(19) caseF(20) caseF(21) caseF(22) caseF(23) +caseF(24) caseF(25) caseF(26) caseF(27) caseF(28) caseF(29) caseF(30) caseF(31) + +#undef caseF +#endif + + case 64: regs->nip = *ptr; break; + case 65: regs->msr = *ptr; break; + case 66: regs->ccr = *ptr; break; + case 67: regs->link = *ptr; break; + case 68: regs->ctr = *ptr; break; + case 69: regs->ctr = *ptr; break; + + default: + kgdb_error(KGDBERR_BADPARAMS); + } +} + +void +kgdb_putregs(struct pt_regs *regs, char *buf, int length) +{ + int i; + unsigned long *ptr = (unsigned long *)buf; + + if (length < SPACE_REQUIRED) + kgdb_error(KGDBERR_NOSPACE); + + if ((unsigned long)ptr & 3) + kgdb_error(KGDBERR_ALIGNFAULT); + + /* + * If the stack pointer has moved, you should pray. + * (cause only god can help you). + */ + + /* General Purpose Regs */ + for (i = 0; i < 32; i++) + regs->gpr[i] = *ptr++; + + /* Floating Point Regs */ +#ifdef CONFIG_8260 + LFDM(ptr); +#endif + ptr += 32*2; + + /* pc, msr, cr, lr, ctr, xer, (mq is unused) */ + regs->nip = *ptr++; + regs->msr = *ptr++; + regs->ccr = *ptr++; + regs->link = *ptr++; + regs->ctr = *ptr++; + regs->xer = *ptr++; +} + +/* This function will generate a breakpoint exception. It is used at the + beginning of a program to sync up with a debugger and can be used + otherwise as a quick means to stop program execution and "break" into + the debugger. */ + +void +kgdb_breakpoint(int argc, char *argv[]) +{ + asm(" .globl breakinst\n\ + breakinst: .long 0x7d821008\n\ + "); +} diff --git a/arch/ppc/lib/ppccache.S b/arch/ppc/lib/ppccache.S new file mode 100644 index 0000000..278a804 --- /dev/null +++ b/arch/ppc/lib/ppccache.S @@ -0,0 +1,72 @@ +/* + * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> + * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> + * Copyright (C) 2000, 2001,2002 Wolfgang Denk <wd@denx.de> + * Copyright Freescale Semiconductor, Inc. 2004, 2006. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <ppc_asm.tmpl> + +/*------------------------------------------------------------------------------- */ +/* Function: ppcDcbf */ +/* Description: Data Cache block flush */ +/* Input: r3 = effective address */ +/* Output: none. */ +/*------------------------------------------------------------------------------- */ + .globl ppcDcbf +ppcDcbf: + dcbf r0,r3 + blr + +/*------------------------------------------------------------------------------- */ +/* Function: ppcDcbi */ +/* Description: Data Cache block Invalidate */ +/* Input: r3 = effective address */ +/* Output: none. */ +/*------------------------------------------------------------------------------- */ + .globl ppcDcbi +ppcDcbi: + dcbi r0,r3 + blr + +/*-------------------------------------------------------------------------- + * Function: ppcDcbz + * Description: Data Cache block zero. + * Input: r3 = effective address + * Output: none. + *-------------------------------------------------------------------------- */ + + .globl ppcDcbz +ppcDcbz: + dcbz r0,r3 + blr + +/*------------------------------------------------------------------------------- */ +/* Function: ppcSync */ +/* Description: Processor Synchronize */ +/* Input: none. */ +/* Output: none. */ +/*------------------------------------------------------------------------------- */ + .globl ppcSync +ppcSync: + sync + blr diff --git a/arch/ppc/lib/ppcstring.S b/arch/ppc/lib/ppcstring.S new file mode 100644 index 0000000..97023a0 --- /dev/null +++ b/arch/ppc/lib/ppcstring.S @@ -0,0 +1,216 @@ +/* + * String handling functions for PowerPC. + * + * Copyright (C) 1996 Paul Mackerras. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#include <ppc_asm.tmpl> +#include <asm/errno.h> + + .globl strcpy +strcpy: + addi r5,r3,-1 + addi r4,r4,-1 +1: lbzu r0,1(r4) + cmpwi 0,r0,0 + stbu r0,1(r5) + bne 1b + blr + + .globl strncpy +strncpy: + cmpwi 0,r5,0 + beqlr + mtctr r5 + addi r6,r3,-1 + addi r4,r4,-1 +1: lbzu r0,1(r4) + cmpwi 0,r0,0 + stbu r0,1(r6) + bdnzf 2,1b /* dec ctr, branch if ctr != 0 && !cr0.eq */ + blr + + .globl strcat +strcat: + addi r5,r3,-1 + addi r4,r4,-1 +1: lbzu r0,1(r5) + cmpwi 0,r0,0 + bne 1b + addi r5,r5,-1 +1: lbzu r0,1(r4) + cmpwi 0,r0,0 + stbu r0,1(r5) + bne 1b + blr + + .globl strcmp +strcmp: + addi r5,r3,-1 + addi r4,r4,-1 +1: lbzu r3,1(r5) + cmpwi 1,r3,0 + lbzu r0,1(r4) + subf. r3,r0,r3 + beqlr 1 + beq 1b + blr + + .globl strlen +strlen: + addi r4,r3,-1 +1: lbzu r0,1(r4) + cmpwi 0,r0,0 + bne 1b + subf r3,r3,r4 + blr + + .globl memset +memset: + rlwimi r4,r4,8,16,23 + rlwimi r4,r4,16,0,15 + addi r6,r3,-4 + cmplwi 0,r5,4 + blt 7f + stwu r4,4(r6) + beqlr + andi. r0,r6,3 + add r5,r0,r5 + subf r6,r0,r6 + rlwinm r0,r5,32-2,2,31 + mtctr r0 + bdz 6f +1: stwu r4,4(r6) + bdnz 1b +6: andi. r5,r5,3 +7: cmpwi 0,r5,0 + beqlr + mtctr r5 + addi r6,r6,3 +8: stbu r4,1(r6) + bdnz 8b + blr + + .globl bcopy +bcopy: + mr r6,r3 + mr r3,r4 + mr r4,r6 + b memcpy + + .globl memmove +memmove: + cmplw 0,r3,r4 + bgt backwards_memcpy + /* fall through */ + + .globl memcpy +memcpy: + rlwinm. r7,r5,32-3,3,31 /* r0 = r5 >> 3 */ + addi r6,r3,-4 + addi r4,r4,-4 + beq 2f /* if less than 8 bytes to do */ + andi. r0,r6,3 /* get dest word aligned */ + mtctr r7 + bne 5f +1: lwz r7,4(r4) + lwzu r8,8(r4) + stw r7,4(r6) + stwu r8,8(r6) + bdnz 1b + andi. r5,r5,7 +2: cmplwi 0,r5,4 + blt 3f + lwzu r0,4(r4) + addi r5,r5,-4 + stwu r0,4(r6) +3: cmpwi 0,r5,0 + beqlr + mtctr r5 + addi r4,r4,3 + addi r6,r6,3 +4: lbzu r0,1(r4) + stbu r0,1(r6) + bdnz 4b + blr +5: subfic r0,r0,4 + mtctr r0 +6: lbz r7,4(r4) + addi r4,r4,1 + stb r7,4(r6) + addi r6,r6,1 + bdnz 6b + subf r5,r0,r5 + rlwinm. r7,r5,32-3,3,31 + beq 2b + mtctr r7 + b 1b + + .globl backwards_memcpy +backwards_memcpy: + rlwinm. r7,r5,32-3,3,31 /* r0 = r5 >> 3 */ + add r6,r3,r5 + add r4,r4,r5 + beq 2f + andi. r0,r6,3 + mtctr r7 + bne 5f +1: lwz r7,-4(r4) + lwzu r8,-8(r4) + stw r7,-4(r6) + stwu r8,-8(r6) + bdnz 1b + andi. r5,r5,7 +2: cmplwi 0,r5,4 + blt 3f + lwzu r0,-4(r4) + subi r5,r5,4 + stwu r0,-4(r6) +3: cmpwi 0,r5,0 + beqlr + mtctr r5 +4: lbzu r0,-1(r4) + stbu r0,-1(r6) + bdnz 4b + blr +5: mtctr r0 +6: lbzu r7,-1(r4) + stbu r7,-1(r6) + bdnz 6b + subf r5,r0,r5 + rlwinm. r7,r5,32-3,3,31 + beq 2b + mtctr r7 + b 1b + + .globl memcmp +memcmp: + cmpwi 0,r5,0 + ble- 2f + mtctr r5 + addi r6,r3,-1 + addi r4,r4,-1 +1: lbzu r3,1(r6) + lbzu r0,1(r4) + subf. r3,r0,r3 + bdnzt 2,1b + blr +2: li r3,0 + blr + + .global memchr +memchr: + cmpwi 0,r5,0 + ble- 2f + mtctr r5 + addi r3,r3,-1 +1: lbzu r0,1(r3) + cmpw 0,r0,r4 + bdnzf 2,1b + beqlr +2: li r3,0 + blr diff --git a/arch/ppc/lib/reloc.S b/arch/ppc/lib/reloc.S new file mode 100644 index 0000000..50f9a83 --- /dev/null +++ b/arch/ppc/lib/reloc.S @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2009 Wolfgang Denk <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <ppc_asm.tmpl> + + .file "reloc.S" + + .text +#ifndef CONFIG_NAND_SPL + /* + * Function: relocate entries for one exception vector + */ + .globl trap_reloc + .type trap_reloc, @function +trap_reloc: + lwz r0, 0(r7) /* hdlr ... */ + add r0, r0, r3 /* ... += dest_addr */ + stw r0, 0(r7) + + lwz r0, 4(r7) /* int_return ... */ + add r0, r0, r3 /* ... += dest_addr */ + stw r0, 4(r7) + + lwz r0, 8(r7) /* transfer_to_handler ...*/ + add r0, r0, r3 /* ... += dest_addr */ + stw r0, 8(r7) + + blr + .size trap_reloc, .-trap_reloc +#endif diff --git a/arch/ppc/lib/ticks.S b/arch/ppc/lib/ticks.S new file mode 100644 index 0000000..b8d25b7 --- /dev/null +++ b/arch/ppc/lib/ticks.S @@ -0,0 +1,65 @@ +/* + * (C) Copyright 2000, 2001 + * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. + * base on code by + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> +#include <config.h> +#include <watchdog.h> + +/* + * unsigned long long get_ticks(void); + * + * read timebase as "long long" + */ + .globl get_ticks +get_ticks: +1: mftbu r3 + mftb r4 + mftbu r5 + cmp 0,r3,r5 + bne 1b + blr + +/* + * Delay for a number of ticks + */ + .globl wait_ticks +wait_ticks: + mflr r8 /* save link register */ + mr r7, r3 /* save tick count */ + bl get_ticks /* Get start time */ + + /* Calculate end time */ + addc r7, r4, r7 /* Compute end time lower */ + addze r6, r3 /* and end time upper */ + + WATCHDOG_RESET /* Trigger watchdog, if needed */ +1: bl get_ticks /* Get current time */ + subfc r4, r4, r7 /* Subtract current time from end time */ + subfe. r3, r3, r6 + bge 1b /* Loop until time expired */ + + mtlr r8 /* restore link register */ + blr diff --git a/arch/ppc/lib/time.c b/arch/ppc/lib/time.c new file mode 100644 index 0000000..2909961 --- /dev/null +++ b/arch/ppc/lib/time.c @@ -0,0 +1,97 @@ +/* + * (C) Copyright 2000, 2001 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +/* ------------------------------------------------------------------------- */ + +/* + * This function is intended for SHORT delays only. + * It will overflow at around 10 seconds @ 400MHz, + * or 20 seconds @ 200MHz. + */ +unsigned long usec2ticks(unsigned long usec) +{ + ulong ticks; + + if (usec < 1000) { + ticks = ((usec * (get_tbclk()/1000)) + 500) / 1000; + } else { + ticks = ((usec / 10) * (get_tbclk() / 100000)); + } + + return (ticks); +} + +/* ------------------------------------------------------------------------- */ + +/* + * We implement the delay by converting the delay (the number of + * microseconds to wait) into a number of time base ticks; then we + * watch the time base until it has incremented by that amount. + */ +void __udelay(unsigned long usec) +{ + ulong ticks = usec2ticks (usec); + wait_ticks (ticks); +} + +/* ------------------------------------------------------------------------- */ +#ifndef CONFIG_NAND_SPL +unsigned long ticks2usec(unsigned long ticks) +{ + ulong tbclk = get_tbclk(); + + /* usec = ticks * 1000000 / tbclk + * Multiplication would overflow at ~4.2e3 ticks, + * so we break it up into + * usec = ( ( ticks * 1000) / tbclk ) * 1000; + */ + ticks *= 1000L; + ticks /= tbclk; + ticks *= 1000L; + + return ((ulong)ticks); +} +#endif +/* ------------------------------------------------------------------------- */ + +int init_timebase (void) +{ +#if defined(CONFIG_5xx) || defined(CONFIG_8xx) + volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; + + /* unlock */ + immap->im_sitk.sitk_tbk = KAPWR_KEY; +#endif + + /* reset */ + asm ("li 3,0 ; mttbu 3 ; mttbl 3 ;"); + +#if defined(CONFIG_5xx) || defined(CONFIG_8xx) + /* enable */ + immap->im_sit.sit_tbscr |= TBSCR_TBE; +#endif + return (0); +} +/* ------------------------------------------------------------------------- */ |