| /* |
| * (C) Copyright 2001 |
| * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #include <common.h> |
| #include <mpc824x.h> |
| |
| #if defined(CONFIG_ENV_IS_IN_FLASH) |
| # ifndef CONFIG_ENV_ADDR |
| # define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET) |
| # endif |
| # ifndef CONFIG_ENV_SIZE |
| # define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE |
| # endif |
| # ifndef CONFIG_ENV_SECT_SIZE |
| # define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE |
| # endif |
| #endif |
| |
| /*---------------------------------------------------------------------*/ |
| #undef DEBUG_FLASH |
| |
| #ifdef DEBUG_FLASH |
| #define DEBUGF(fmt,args...) printf(fmt ,##args) |
| #else |
| #define DEBUGF(fmt,args...) |
| #endif |
| /*---------------------------------------------------------------------*/ |
| |
| flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ |
| |
| /*----------------------------------------------------------------------- |
| * Functions |
| */ |
| static ulong flash_get_size (vu_char *addr, flash_info_t *info); |
| static int write_data (flash_info_t *info, uchar *dest, uchar data); |
| static void flash_get_offsets (ulong base, flash_info_t *info); |
| |
| |
| /* |
| * don't ask. its stupid, but more than one soul has had to live with this mistake |
| * "swaptab[i]" is the value of "i" with the bits reversed. |
| */ |
| |
| #define MUSENKI_BROKEN_FLASH 1 |
| |
| #ifdef MUSENKI_BROKEN_FLASH |
| unsigned char swaptab[256] = { |
| 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, |
| 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, |
| 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, |
| 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, |
| 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, |
| 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, |
| 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, |
| 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, |
| 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, |
| 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, |
| 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, |
| 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, |
| 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, |
| 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, |
| 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, |
| 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, |
| 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, |
| 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, |
| 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, |
| 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, |
| 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, |
| 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, |
| 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, |
| 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, |
| 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, |
| 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, |
| 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, |
| 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, |
| 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, |
| 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, |
| 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, |
| 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff, |
| }; |
| |
| #define BS(b) (swaptab[b]) |
| |
| #else |
| |
| #define BS(b) (b) |
| |
| #endif |
| |
| #define BYTEME(x) ((x) & 0xFF) |
| |
| /*----------------------------------------------------------------------- |
| */ |
| |
| unsigned long flash_init (void) |
| { |
| unsigned long size_b0, size_b1; |
| int i; |
| |
| /* Init: no FLASHes known */ |
| for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) { |
| flash_info[i].flash_id = FLASH_UNKNOWN; |
| } |
| |
| /* Static FLASH Bank configuration here - FIXME XXX */ |
| |
| DEBUGF("\n## Get flash bank 1 size @ 0x%08x\n",CONFIG_SYS_FLASH_BASE0_PRELIM); |
| |
| size_b0 = flash_get_size((vu_char *)CONFIG_SYS_FLASH_BASE0_PRELIM, &flash_info[0]); |
| |
| if (flash_info[0].flash_id == FLASH_UNKNOWN) { |
| printf ("## Unknown FLASH on Bank 0: " |
| "ID 0x%lx, Size = 0x%08lx = %ld MB\n", |
| flash_info[0].flash_id, |
| size_b0, size_b0<<20); |
| } |
| |
| DEBUGF("## Get flash bank 2 size @ 0x%08x\n",CONFIG_SYS_FLASH_BASE1_PRELIM); |
| size_b1 = flash_get_size((vu_char *)CONFIG_SYS_FLASH_BASE1_PRELIM, &flash_info[1]); |
| |
| DEBUGF("## Prelim. Flash bank sizes: %08lx + 0x%08lx\n",size_b0,size_b1); |
| |
| flash_get_offsets (CONFIG_SYS_FLASH_BASE, &flash_info[0]); |
| |
| flash_info[0].size = size_b0; |
| |
| #if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE |
| DEBUGF("protect monitor %x @ %x\n", CONFIG_SYS_MONITOR_BASE, monitor_flash_len); |
| /* monitor protection ON by default */ |
| flash_protect(FLAG_PROTECT_SET, |
| CONFIG_SYS_MONITOR_BASE, |
| CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1, |
| &flash_info[0]); |
| #endif |
| |
| #ifdef CONFIG_ENV_IS_IN_FLASH |
| /* ENV protection ON by default */ |
| DEBUGF("protect environtment %x @ %x\n", CONFIG_ENV_ADDR, CONFIG_ENV_SECT_SIZE); |
| flash_protect(FLAG_PROTECT_SET, |
| CONFIG_ENV_ADDR, |
| CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1, |
| &flash_info[0]); |
| #endif |
| |
| if (size_b1) { |
| flash_info[1].size = size_b1; |
| flash_get_offsets (CONFIG_SYS_FLASH_BASE + size_b0, &flash_info[1]); |
| |
| #if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE |
| /* monitor protection ON by default */ |
| flash_protect(FLAG_PROTECT_SET, |
| CONFIG_SYS_MONITOR_BASE, |
| CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1, |
| &flash_info[1]); |
| #endif |
| |
| #ifdef CONFIG_ENV_IS_IN_FLASH |
| /* ENV protection ON by default */ |
| flash_protect(FLAG_PROTECT_SET, |
| CONFIG_ENV_ADDR, |
| CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1, |
| &flash_info[1]); |
| #endif |
| } else { |
| flash_info[1].flash_id = FLASH_UNKNOWN; |
| flash_info[1].sector_count = -1; |
| flash_info[1].size = 0; |
| } |
| |
| DEBUGF("## Final Flash bank sizes: %08lx + 0x%08lx\n",size_b0,size_b1); |
| |
| return (size_b0 + size_b1); |
| } |
| |
| /*----------------------------------------------------------------------- |
| */ |
| static void flash_get_offsets (ulong base, flash_info_t *info) |
| { |
| int i; |
| |
| if (info->flash_id == FLASH_UNKNOWN) { |
| return; |
| } |
| |
| switch (info->flash_id & FLASH_VENDMASK) { |
| case FLASH_MAN_INTEL: |
| for (i = 0; i < info->sector_count; i++) { |
| info->start[i] = base; |
| base += 0x00020000; /* 128k per bank */ |
| } |
| return; |
| |
| default: |
| printf ("Don't know sector ofsets for flash type 0x%lx\n", info->flash_id); |
| return; |
| } |
| } |
| |
| /*----------------------------------------------------------------------- |
| */ |
| void flash_print_info (flash_info_t *info) |
| { |
| int i; |
| |
| if (info->flash_id == FLASH_UNKNOWN) { |
| printf ("missing or unknown FLASH type\n"); |
| return; |
| } |
| |
| switch (info->flash_id & FLASH_VENDMASK) { |
| case FLASH_MAN_AMD: printf ("AMD "); break; |
| case FLASH_MAN_FUJ: printf ("Fujitsu "); break; |
| case FLASH_MAN_SST: printf ("SST "); break; |
| case FLASH_MAN_STM: printf ("STM "); break; |
| case FLASH_MAN_INTEL: printf ("Intel "); break; |
| case FLASH_MAN_MT: printf ("MT "); break; |
| default: printf ("Unknown Vendor "); break; |
| } |
| |
| switch (info->flash_id & FLASH_TYPEMASK) { |
| case FLASH_28F320J3A: printf ("28F320J3A (32Mbit = 128K x 32)\n"); |
| break; |
| case FLASH_28F640J3A: printf ("28F640J3A (64Mbit = 128K x 64)\n"); |
| break; |
| case FLASH_28F128J3A: printf ("28F128J3A (128Mbit = 128K x 128)\n"); |
| break; |
| default: printf ("Unknown Chip Type\n"); |
| break; |
| } |
| |
| if (info->size >= (1 << 20)) { |
| i = 20; |
| } else { |
| i = 10; |
| } |
| printf (" Size: %ld %cB in %d Sectors\n", |
| info->size >> i, |
| (i == 20) ? 'M' : 'k', |
| info->sector_count); |
| |
| printf (" Sector Start Addresses:"); |
| for (i=0; i<info->sector_count; ++i) { |
| if ((i % 5) == 0) |
| printf ("\n "); |
| printf (" %08lX%s", |
| info->start[i], |
| info->protect[i] ? " (RO)" : " " |
| ); |
| } |
| printf ("\n"); |
| return; |
| } |
| |
| /*----------------------------------------------------------------------- |
| */ |
| |
| |
| /*----------------------------------------------------------------------- |
| */ |
| |
| /* |
| * The following code cannot be run from FLASH! |
| */ |
| static ulong flash_get_size (vu_char *addr, flash_info_t *info) |
| { |
| vu_char manuf, device; |
| |
| addr[0] = BS(0x90); |
| manuf = BS(addr[0]); |
| DEBUGF("Manuf. ID @ 0x%08lx: 0x%08x\n", (vu_char *)addr, manuf); |
| |
| switch (manuf) { |
| case BYTEME(AMD_MANUFACT): |
| info->flash_id = FLASH_MAN_AMD; |
| break; |
| case BYTEME(FUJ_MANUFACT): |
| info->flash_id = FLASH_MAN_FUJ; |
| break; |
| case BYTEME(SST_MANUFACT): |
| info->flash_id = FLASH_MAN_SST; |
| break; |
| case BYTEME(STM_MANUFACT): |
| info->flash_id = FLASH_MAN_STM; |
| break; |
| case BYTEME(INTEL_MANUFACT): |
| info->flash_id = FLASH_MAN_INTEL; |
| break; |
| default: |
| info->flash_id = FLASH_UNKNOWN; |
| info->sector_count = 0; |
| info->size = 0; |
| addr[0] = BS(0xFF); /* restore read mode, (yes, BS is a NOP) */ |
| return 0; /* no or unknown flash */ |
| } |
| |
| device = BS(addr[2]); /* device ID */ |
| |
| DEBUGF("Device ID @ 0x%08x: 0x%08x\n", (&addr[1]), device); |
| |
| switch (device) { |
| case BYTEME(INTEL_ID_28F320J3A): |
| info->flash_id += FLASH_28F320J3A; |
| info->sector_count = 32; |
| info->size = 0x00400000; |
| break; /* => 4 MB */ |
| |
| case BYTEME(INTEL_ID_28F640J3A): |
| info->flash_id += FLASH_28F640J3A; |
| info->sector_count = 64; |
| info->size = 0x00800000; |
| break; /* => 8 MB */ |
| |
| case BYTEME(INTEL_ID_28F128J3A): |
| info->flash_id += FLASH_28F128J3A; |
| info->sector_count = 128; |
| info->size = 0x01000000; |
| break; /* => 16 MB */ |
| |
| default: |
| info->flash_id = FLASH_UNKNOWN; |
| addr[0] = BS(0xFF); /* restore read mode (yes, a NOP) */ |
| return 0; /* => no or unknown flash */ |
| |
| } |
| |
| if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) { |
| printf ("** ERROR: sector count %d > max (%d) **\n", |
| info->sector_count, CONFIG_SYS_MAX_FLASH_SECT); |
| info->sector_count = CONFIG_SYS_MAX_FLASH_SECT; |
| } |
| |
| addr[0] = BS(0xFF); /* restore read mode */ |
| |
| return (info->size); |
| } |
| |
| |
| /*----------------------------------------------------------------------- |
| */ |
| |
| int flash_erase (flash_info_t *info, int s_first, int s_last) |
| { |
| int flag, prot, sect; |
| ulong start, now, last; |
| |
| if ((s_first < 0) || (s_first > s_last)) { |
| if (info->flash_id == FLASH_UNKNOWN) { |
| printf ("- missing\n"); |
| } else { |
| printf ("- no sectors to erase\n"); |
| } |
| return 1; |
| } |
| |
| if ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL) { |
| printf ("Can erase only Intel flash types - aborted\n"); |
| return 1; |
| } |
| |
| prot = 0; |
| for (sect=s_first; sect<=s_last; ++sect) { |
| if (info->protect[sect]) { |
| prot++; |
| } |
| } |
| |
| if (prot) { |
| printf ("- Warning: %d protected sectors will not be erased!\n", prot); |
| } else { |
| printf ("\n"); |
| } |
| |
| start = get_timer (0); |
| last = start; |
| /* Start erase on unprotected sectors */ |
| for (sect = s_first; sect<=s_last; sect++) { |
| if (info->protect[sect] == 0) { /* not protected */ |
| vu_char *addr = (vu_char *)(info->start[sect]); |
| unsigned long status; |
| |
| /* Disable interrupts which might cause a timeout here */ |
| flag = disable_interrupts(); |
| |
| *addr = BS(0x50); /* clear status register */ |
| *addr = BS(0x20); /* erase setup */ |
| *addr = BS(0xD0); /* erase confirm */ |
| |
| /* re-enable interrupts if necessary */ |
| if (flag) { |
| enable_interrupts(); |
| } |
| |
| /* wait at least 80us - let's wait 1 ms */ |
| udelay (1000); |
| |
| while (((status = BS(*addr)) & BYTEME(0x00800080)) != BYTEME(0x00800080)) { |
| if ((now=get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { |
| printf ("Timeout\n"); |
| *addr = BS(0xB0); /* suspend erase */ |
| *addr = BS(0xFF); /* reset to read mode */ |
| return 1; |
| } |
| |
| /* show that we're waiting */ |
| if ((now - last) > 1000) { /* every second */ |
| putc ('.'); |
| last = now; |
| } |
| } |
| |
| *addr = BS(0xFF); /* reset to read mode */ |
| } |
| } |
| printf (" done\n"); |
| return 0; |
| } |
| |
| /*----------------------------------------------------------------------- |
| * Copy memory to flash, returns: |
| * 0 - OK |
| * 1 - write timeout |
| * 2 - Flash not erased |
| * 4 - Flash not identified |
| */ |
| |
| #define FLASH_WIDTH 1 /* flash bus width in bytes */ |
| |
| int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) |
| { |
| uchar *wp = (uchar *)addr; |
| int rc; |
| |
| if (info->flash_id == FLASH_UNKNOWN) { |
| return 4; |
| } |
| |
| while (cnt > 0) { |
| if ((rc = write_data(info, wp, *src)) != 0) { |
| return rc; |
| } |
| wp++; |
| src++; |
| cnt--; |
| } |
| |
| return cnt; |
| } |
| |
| /*----------------------------------------------------------------------- |
| * Write a word to Flash, returns: |
| * 0 - OK |
| * 1 - write timeout |
| * 2 - Flash not erased |
| */ |
| static int write_data (flash_info_t *info, uchar *dest, uchar data) |
| { |
| vu_char *addr = (vu_char *)dest; |
| ulong status; |
| ulong start; |
| int flag; |
| |
| /* Check if Flash is (sufficiently) erased */ |
| if ((BS(*addr) & data) != data) { |
| return 2; |
| } |
| /* Disable interrupts which might cause a timeout here */ |
| flag = disable_interrupts(); |
| |
| *addr = BS(0x40); /* write setup */ |
| *addr = data; |
| |
| /* re-enable interrupts if necessary */ |
| if (flag) { |
| enable_interrupts(); |
| } |
| |
| start = get_timer (0); |
| |
| while (((status = BS(*addr)) & BYTEME(0x00800080)) != BYTEME(0x00800080)) { |
| if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { |
| *addr = BS(0xFF); /* restore read mode */ |
| return 1; |
| } |
| } |
| |
| *addr = BS(0xFF); /* restore read mode */ |
| |
| return 0; |
| } |
| |
| /*----------------------------------------------------------------------- |
| */ |