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-rw-r--r--cpu/74xx_7xx/Makefile51
-rw-r--r--cpu/74xx_7xx/cache.S404
-rw-r--r--cpu/74xx_7xx/config.mk26
-rw-r--r--cpu/74xx_7xx/cpu.c320
-rw-r--r--cpu/74xx_7xx/cpu_init.c63
-rw-r--r--cpu/74xx_7xx/interrupts.c105
-rw-r--r--cpu/74xx_7xx/io.S128
-rw-r--r--cpu/74xx_7xx/kgdb.S77
-rw-r--r--cpu/74xx_7xx/speed.c185
-rw-r--r--cpu/74xx_7xx/start.S874
-rw-r--r--cpu/74xx_7xx/traps.c252
11 files changed, 0 insertions, 2485 deletions
diff --git a/cpu/74xx_7xx/Makefile b/cpu/74xx_7xx/Makefile
deleted file mode 100644
index fe905f3..0000000
--- a/cpu/74xx_7xx/Makefile
+++ /dev/null
@@ -1,51 +0,0 @@
-#
-# (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/cpu/74xx_7xx/cache.S b/cpu/74xx_7xx/cache.S
deleted file mode 100644
index 66c7298..0000000
--- a/cpu/74xx_7xx/cache.S
+++ /dev/null
@@ -1,404 +0,0 @@
-#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/cpu/74xx_7xx/config.mk b/cpu/74xx_7xx/config.mk
deleted file mode 100644
index df1f6ac..0000000
--- a/cpu/74xx_7xx/config.mk
+++ /dev/null
@@ -1,26 +0,0 @@
-#
-# (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/cpu/74xx_7xx/cpu.c b/cpu/74xx_7xx/cpu.c
deleted file mode 100644
index 3c17277..0000000
--- a/cpu/74xx_7xx/cpu.c
+++ /dev/null
@@ -1,320 +0,0 @@
-/*
- * (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/cpu/74xx_7xx/cpu_init.c b/cpu/74xx_7xx/cpu_init.c
deleted file mode 100644
index 1dd1b2c..0000000
--- a/cpu/74xx_7xx/cpu_init.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * (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/cpu/74xx_7xx/interrupts.c b/cpu/74xx_7xx/interrupts.c
deleted file mode 100644
index 0ea1aec..0000000
--- a/cpu/74xx_7xx/interrupts.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * (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/cpu/74xx_7xx/io.S b/cpu/74xx_7xx/io.S
deleted file mode 100644
index af2e6d1..0000000
--- a/cpu/74xx_7xx/io.S
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * 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/cpu/74xx_7xx/kgdb.S b/cpu/74xx_7xx/kgdb.S
deleted file mode 100644
index ad487cd..0000000
--- a/cpu/74xx_7xx/kgdb.S
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * 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/cpu/74xx_7xx/speed.c b/cpu/74xx_7xx/speed.c
deleted file mode 100644
index f2fdcd5..0000000
--- a/cpu/74xx_7xx/speed.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * (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/cpu/74xx_7xx/start.S b/cpu/74xx_7xx/start.S
deleted file mode 100644
index 88fdf88..0000000
--- a/cpu/74xx_7xx/start.S
+++ /dev/null
@@ -1,874 +0,0 @@
-/*
- * 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/cpu/74xx_7xx/traps.c b/cpu/74xx_7xx/traps.c
deleted file mode 100644
index 1d5dd01..0000000
--- a/cpu/74xx_7xx/traps.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/*
- * 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;
-}
generated by cgit v1.1 at 2024-11-05 10:18:34 +0000