diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc824x/cpu_init.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc824x/cpu_init.c | 311 |
1 files changed, 0 insertions, 311 deletions
diff --git a/arch/powerpc/cpu/mpc824x/cpu_init.c b/arch/powerpc/cpu/mpc824x/cpu_init.c deleted file mode 100644 index 68d88e910c..0000000000 --- a/arch/powerpc/cpu/mpc824x/cpu_init.c +++ /dev/null @@ -1,311 +0,0 @@ -/* - * (C) Copyright 2000 - * Rob Taylor. Flying Pig Systems. robt@flyingpig.com. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#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) -{ - 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) -/* 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*/ - val |= PICR2_CF_SNOOP_WS_1WS | PICR2_CF_APHASE_WS_1WS; /*1 wait state*/ - 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) - 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"); -} - -/* - * initialize higher level parts of CPU like time base and timers - */ -int cpu_init_r (void) -{ - return (0); -} |
