diff options
Diffstat (limited to 'arch/ppc/cpu/mpc824x')
| -rw-r--r-- | arch/ppc/cpu/mpc824x/.gitignore | 1 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/Makefile | 56 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/config.mk | 29 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/cpu.c | 280 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/cpu_init.c | 417 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/drivers/epic.h | 1 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/drivers/epic/README | 102 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/drivers/epic/epic.h | 163 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/drivers/epic/epic1.c | 517 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/drivers/epic/epic2.S | 196 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/drivers/epic/epicutil.S | 57 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/drivers/errors.h | 212 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/drivers/i2c/i2c.c | 270 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/drivers/i2c_export.h | 103 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/interrupts.c | 93 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/pci.c | 78 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/speed.c | 118 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/start.S | 766 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/traps.c | 219 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc824x/u-boot.lds | 122 |
20 files changed, 0 insertions, 3800 deletions
diff --git a/arch/ppc/cpu/mpc824x/.gitignore b/arch/ppc/cpu/mpc824x/.gitignore deleted file mode 100644 index 2d79931..0000000 --- a/arch/ppc/cpu/mpc824x/.gitignore +++ /dev/null @@ -1 +0,0 @@ -/bedbug_603e.c diff --git a/arch/ppc/cpu/mpc824x/Makefile b/arch/ppc/cpu/mpc824x/Makefile deleted file mode 100644 index a57ad12..0000000 --- a/arch/ppc/cpu/mpc824x/Makefile +++ /dev/null @@ -1,56 +0,0 @@ -# -# (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 deleted file mode 100644 index 31ecd20..0000000 --- a/arch/ppc/cpu/mpc824x/config.mk +++ /dev/null @@ -1,29 +0,0 @@ -# -# (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 deleted file mode 100644 index 08f6a94..0000000 --- a/arch/ppc/cpu/mpc824x/cpu.c +++ /dev/null @@ -1,280 +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 <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 deleted file mode 100644 index 395f776..0000000 --- a/arch/ppc/cpu/mpc824x/cpu_init.c +++ /dev/null @@ -1,417 +0,0 @@ -/* - * (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 deleted file mode 100644 index 2803f63..0000000 --- a/arch/ppc/cpu/mpc824x/drivers/epic.h +++ /dev/null @@ -1 +0,0 @@ -#include "epic/epic.h" diff --git a/arch/ppc/cpu/mpc824x/drivers/epic/README b/arch/ppc/cpu/mpc824x/drivers/epic/README deleted file mode 100644 index 5798996..0000000 --- a/arch/ppc/cpu/mpc824x/drivers/epic/README +++ /dev/null @@ -1,102 +0,0 @@ -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 deleted file mode 100644 index 58f81c5..0000000 --- a/arch/ppc/cpu/mpc824x/drivers/epic/epic.h +++ /dev/null @@ -1,163 +0,0 @@ -/********************************************************************* - * 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 deleted file mode 100644 index ecbb42d..0000000 --- a/arch/ppc/cpu/mpc824x/drivers/epic/epic1.c +++ /dev/null @@ -1,517 +0,0 @@ -/************************************************** - * - * 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 deleted file mode 100644 index 52d19aa..0000000 --- a/arch/ppc/cpu/mpc824x/drivers/epic/epic2.S +++ /dev/null @@ -1,196 +0,0 @@ -/************************************** - * - * 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 deleted file mode 100644 index 4877050..0000000 --- a/arch/ppc/cpu/mpc824x/drivers/epic/epicutil.S +++ /dev/null @@ -1,57 +0,0 @@ -/************************************** - * - * 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 deleted file mode 100644 index 20794a2..0000000 --- a/arch/ppc/cpu/mpc824x/drivers/errors.h +++ /dev/null @@ -1,212 +0,0 @@ -/* 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 deleted file mode 100644 index 637ae4c..0000000 --- a/arch/ppc/cpu/mpc824x/drivers/i2c/i2c.c +++ /dev/null @@ -1,270 +0,0 @@ -/* - * (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 deleted file mode 100644 index 6264d18..0000000 --- a/arch/ppc/cpu/mpc824x/drivers/i2c_export.h +++ /dev/null @@ -1,103 +0,0 @@ -#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 deleted file mode 100644 index 139c52c..0000000 --- a/arch/ppc/cpu/mpc824x/interrupts.c +++ /dev/null @@ -1,93 +0,0 @@ -/* - * (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 deleted file mode 100644 index cf9cf41..0000000 --- a/arch/ppc/cpu/mpc824x/pci.c +++ /dev/null @@ -1,78 +0,0 @@ -/* - * 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 deleted file mode 100644 index fdcb972..0000000 --- a/arch/ppc/cpu/mpc824x/speed.c +++ /dev/null @@ -1,118 +0,0 @@ -/* - * (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 deleted file mode 100644 index f3f595a..0000000 --- a/arch/ppc/cpu/mpc824x/start.S +++ /dev/null @@ -1,766 +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> - * - * 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 deleted file mode 100644 index 0a72430..0000000 --- a/arch/ppc/cpu/mpc824x/traps.c +++ /dev/null @@ -1,219 +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 <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 deleted file mode 100644 index 8a6d508..0000000 --- a/arch/ppc/cpu/mpc824x/u-boot.lds +++ /dev/null @@ -1,122 +0,0 @@ -/* - * (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 = .); -} |