/* * (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 */ /* * Modified 4/5/2001 * Wait for completion of each sector erase command issued * 4/5/2001 * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com */ #include <common.h> #include <ppc4xx.h> #include <asm/processor.h> flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ #undef DEBUG #ifdef DEBUG #define DEBUGF(x...) printf(x) #else #define DEBUGF(x...) #endif /* DEBUG */ #define CFG_FLASH_CHAR_SIZE unsigned char #define CFG_FLASH_CHAR_ADDR0 (0x0aaa) #define CFG_FLASH_CHAR_ADDR1 (0x0555) /*----------------------------------------------------------------------- * Functions */ static ulong flash_get_size(vu_long * addr, flash_info_t * info); static void flash_get_offsets(ulong base, flash_info_t * info); static int write_word(flash_info_t * info, ulong dest, ulong data); #ifdef FLASH_BASE1_PRELIM static int write_word_1(flash_info_t * info, ulong dest, ulong data); static int write_word_2(flash_info_t * info, ulong dest, ulong data); static int flash_erase_1(flash_info_t * info, int s_first, int s_last); static int flash_erase_2(flash_info_t * info, int s_first, int s_last); static ulong flash_get_size_1(vu_long * addr, flash_info_t * info); static ulong flash_get_size_2(vu_long * addr, flash_info_t * info); #endif unsigned long flash_init(void) { unsigned long size_b0, size_b1=0; int i; /* Init: no FLASHes known */ for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) { flash_info[i].flash_id = FLASH_UNKNOWN; } /* Static FLASH Bank configuration here - FIXME XXX */ size_b0 = flash_get_size((vu_long *) FLASH_BASE0_PRELIM, &flash_info[0]); if (flash_info[0].flash_id == FLASH_UNKNOWN) { printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", size_b0, size_b0 << 20); } if (size_b0) { /* Setup offsets */ flash_get_offsets(FLASH_BASE0_PRELIM, &flash_info[0]); /* Monitor protection ON by default */ (void)flash_protect(FLAG_PROTECT_SET, CFG_MONITOR_BASE, CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1, &flash_info[0]); #ifdef CFG_ENV_IS_IN_FLASH (void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR, CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1, &flash_info[0]); (void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR_REDUND, CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1, &flash_info[0]); #endif /* Also protect sector containing initial power-up instruction */ /* (flash_protect() checks address range - other call ignored) */ (void)flash_protect(FLAG_PROTECT_SET, 0xFFFFFFFC, 0xFFFFFFFF, &flash_info[0]); flash_info[0].size = size_b0; } #ifdef FLASH_BASE1_PRELIM size_b1 = flash_get_size((vu_long *) FLASH_BASE1_PRELIM, &flash_info[1])*2; if (flash_info[1].flash_id == FLASH_UNKNOWN) { printf("## Unknown FLASH on Bank 1 - Size = 0x%08lx = %ld MB\n", size_b1, size_b1 << 20); } if (size_b1) { /* Setup offsets */ flash_get_offsets(FLASH_BASE1_PRELIM, &flash_info[1]); flash_info[1].size = size_b1; } #endif return (size_b0 + size_b1); } static void flash_get_offsets(ulong base, flash_info_t * info) { int i; /* set up sector start address table */ if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) || (info->flash_id == FLASH_AM040)) { for (i = 0; i < info->sector_count; i++) info->start[i] = base + (i * 0x00010000); } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) { for (i = 0; i < info->sector_count; i++) { info->start[i] = base + (i * 0x00010000*2); } } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) { for (i = 0; i < info->sector_count; i++) { info->start[i] = base + (i * 0x00020000*2); } } else { if (info->flash_id & FLASH_BTYPE) { /* set sector offsets for bottom boot block type */ info->start[0] = base + 0x00000000; info->start[1] = base + 0x00004000; info->start[2] = base + 0x00006000; info->start[3] = base + 0x00008000; for (i = 4; i < info->sector_count; i++) { info->start[i] = base + (i * 0x00010000) - 0x00030000; } } else { /* set sector offsets for top boot block type */ i = info->sector_count - 1; info->start[i--] = base + info->size - 0x00004000; info->start[i--] = base + info->size - 0x00006000; info->start[i--] = base + info->size - 0x00008000; for (; i >= 0; i--) { info->start[i] = base + i * 0x00010000; } } } } void flash_print_info(flash_info_t * info) { int i; int k; int size; int erased; volatile unsigned long *flash; 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_STM: printf("STM "); break; case FLASH_MAN_FUJ: printf("FUJITSU "); break; case FLASH_MAN_SST: printf("SST "); break; default: printf("Unknown Vendor "); break; } switch (info->flash_id & FLASH_TYPEMASK) { case FLASH_AM040: printf("AM29F040 (512 Kbit, uniform sector size)\n"); break; case FLASH_AM400B: printf("AM29LV400B (4 Mbit, bottom boot sect)\n"); break; case FLASH_AM400T: printf("AM29LV400T (4 Mbit, top boot sector)\n"); break; case FLASH_AM800B: printf("AM29LV800B (8 Mbit, bottom boot sect)\n"); break; case FLASH_AM800T: printf("AM29LV800T (8 Mbit, top boot sector)\n"); break; case FLASH_AMD016: printf("AM29F016D (16 Mbit, uniform sector size)\n"); break; case FLASH_AM160B: printf("AM29LV160B (16 Mbit, bottom boot sect)\n"); break; case FLASH_AM160T: printf("AM29LV160T (16 Mbit, top boot sector)\n"); break; case FLASH_AM320B: printf("AM29LV320B (32 Mbit, bottom boot sect)\n"); break; case FLASH_AM320T: printf("AM29LV320T (32 Mbit, top boot sector)\n"); break; case FLASH_AM033C: printf("AM29LV033C (32 Mbit, top boot sector)\n"); break; case FLASH_AMLV128U: printf("AM29LV128U (128 Mbit * 2, top boot sector)\n"); break; case FLASH_SST800A: printf("SST39LF/VF800 (8 Mbit, uniform sector size)\n"); break; case FLASH_SST160A: printf("SST39LF/VF160 (16 Mbit, uniform sector size)\n"); break; case FLASH_STMW320DT: printf ("M29W320DT (32 M, top sector)\n"); break; case FLASH_S29GL128N: printf ("S29GL128N (256 Mbit, uniform sector size)\n"); break; default: printf("Unknown Chip Type\n"); break; } printf(" Size: %ld KB in %d Sectors\n", info->size >> 10, info->sector_count); printf(" Sector Start Addresses:"); for (i = 0; i < info->sector_count; ++i) { /* * Check if whole sector is erased */ if (i != (info->sector_count - 1)) size = info->start[i + 1] - info->start[i]; else size = info->start[0] + info->size - info->start[i]; erased = 1; flash = (volatile unsigned long *)info->start[i]; size = size >> 2; /* divide by 4 for longword access */ for (k = 0; k < size; k++) { if (*flash++ != 0xffffffff) { erased = 0; break; } } if ((i % 5) == 0) printf("\n "); printf(" %08lX%s%s", info->start[i], erased ? " E" : " ", info->protect[i] ? "RO " : " "); } printf("\n"); return; } /* * The following code cannot be run from FLASH! */ #ifdef FLASH_BASE1_PRELIM static ulong flash_get_size(vu_long * addr, flash_info_t * info) { if ((ulong)addr == FLASH_BASE1_PRELIM) { return flash_get_size_2(addr, info); } else { return flash_get_size_1(addr, info); } } static ulong flash_get_size_1(vu_long * addr, flash_info_t * info) #else static ulong flash_get_size(vu_long * addr, flash_info_t * info) #endif { short i; CFG_FLASH_WORD_SIZE value; ulong base = (ulong) addr; volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr; DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr); /* Write auto select command: read Manufacturer ID */ addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00900090; udelay(1000); value = addr2[0]; DEBUGF("FLASH MANUFACT: %x\n", value); switch (value) { case (CFG_FLASH_WORD_SIZE) AMD_MANUFACT: info->flash_id = FLASH_MAN_AMD; break; case (CFG_FLASH_WORD_SIZE) FUJ_MANUFACT: info->flash_id = FLASH_MAN_FUJ; break; case (CFG_FLASH_WORD_SIZE) SST_MANUFACT: info->flash_id = FLASH_MAN_SST; break; case (CFG_FLASH_WORD_SIZE) STM_MANUFACT: info->flash_id = FLASH_MAN_STM; break; default: info->flash_id = FLASH_UNKNOWN; info->sector_count = 0; info->size = 0; return 0; /* no or unknown flash */ } value = addr2[1]; /* device ID */ DEBUGF("\nFLASH DEVICEID: %x\n", value); switch (value) { case (CFG_FLASH_WORD_SIZE) AMD_ID_LV040B: info->flash_id += FLASH_AM040; info->sector_count = 8; info->size = 0x0080000; /* => 512 ko */ break; case (CFG_FLASH_WORD_SIZE) AMD_ID_F040B: info->flash_id += FLASH_AM040; info->sector_count = 8; info->size = 0x0080000; /* => 512 ko */ break; case (CFG_FLASH_WORD_SIZE) STM_ID_M29W040B: info->flash_id += FLASH_AM040; info->sector_count = 8; info->size = 0x0080000; /* => 512 ko */ break; case (CFG_FLASH_WORD_SIZE) AMD_ID_F016D: info->flash_id += FLASH_AMD016; info->sector_count = 32; info->size = 0x00200000; break; /* => 2 MB */ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV033C: info->flash_id += FLASH_AMDLV033C; info->sector_count = 64; info->size = 0x00400000; break; /* => 4 MB */ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400T: info->flash_id += FLASH_AM400T; info->sector_count = 11; info->size = 0x00080000; break; /* => 0.5 MB */ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400B: info->flash_id += FLASH_AM400B; info->sector_count = 11; info->size = 0x00080000; break; /* => 0.5 MB */ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800T: info->flash_id += FLASH_AM800T; info->sector_count = 19; info->size = 0x00100000; break; /* => 1 MB */ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800B: info->flash_id += FLASH_AM800B; info->sector_count = 19; info->size = 0x00100000; break; /* => 1 MB */ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160T: info->flash_id += FLASH_AM160T; info->sector_count = 35; info->size = 0x00200000; break; /* => 2 MB */ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160B: info->flash_id += FLASH_AM160B; info->sector_count = 35; info->size = 0x00200000; break; /* => 2 MB */ default: info->flash_id = FLASH_UNKNOWN; return 0; /* => no or unknown flash */ } /* set up sector start address table */ if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) || ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) || ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) { for (i = 0; i < info->sector_count; i++) info->start[i] = base + (i * 0x00010000); } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) { for (i = 0; i < info->sector_count; i++) info->start[i] = base + (i * 0x00010000 * 2); } else { if (info->flash_id & FLASH_BTYPE) { /* set sector offsets for bottom boot block type */ info->start[0] = base + 0x00000000; info->start[1] = base + 0x00004000; info->start[2] = base + 0x00006000; info->start[3] = base + 0x00008000; for (i = 4; i < info->sector_count; i++) { info->start[i] = base + (i * 0x00010000) - 0x00030000; } } else { /* set sector offsets for top boot block type */ i = info->sector_count - 1; info->start[i--] = base + info->size - 0x00004000; info->start[i--] = base + info->size - 0x00006000; info->start[i--] = base + info->size - 0x00008000; for (; i >= 0; i--) { info->start[i] = base + i * 0x00010000; } } } /* check for protected sectors */ for (i = 0; i < info->sector_count; i++) { /* read sector protection at sector address, (A7 .. A0) = 0x02 */ /* D0 = 1 if protected */ addr2 = (volatile CFG_FLASH_WORD_SIZE *)(info->start[i]); /* For AMD29033C flash we need to resend the command of * * reading flash protection for upper 8 Mb of flash */ if (i == 32) { addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA; addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555; addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090; } if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) info->protect[i] = 0; else info->protect[i] = addr2[2] & 1; } /* issue bank reset to return to read mode */ addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0; return info->size; } static int wait_for_DQ7_1(flash_info_t * info, int sect) { ulong start, now, last; volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[sect]); start = get_timer(0); last = start; while ((addr[0] & (CFG_FLASH_WORD_SIZE) 0x00800080) != (CFG_FLASH_WORD_SIZE) 0x00800080) { if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) { printf("Timeout\n"); return -1; } /* show that we're waiting */ if ((now - last) > 1000) { /* every second */ putc('.'); last = now; } } return 0; } #ifdef FLASH_BASE1_PRELIM int flash_erase(flash_info_t * info, int s_first, int s_last) { if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) || ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) || ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) || ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) || ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) { return flash_erase_2(info, s_first, s_last); } else { return flash_erase_1(info, s_first, s_last); } } static int flash_erase_1(flash_info_t * info, int s_first, int s_last) #else int flash_erase(flash_info_t * info, int s_first, int s_last) #endif { volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[0]); volatile CFG_FLASH_WORD_SIZE *addr2; int flag, prot, sect, l_sect; int i; 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_UNKNOWN) { printf("Can't erase unknown flash type - 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"); } l_sect = -1; /* Disable interrupts which might cause a timeout here */ flag = disable_interrupts(); /* Start erase on unprotected sectors */ for (sect = s_first; sect <= s_last; sect++) { if (info->protect[sect] == 0) { /* not protected */ addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]); if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) { addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080; addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00500050; /* block erase */ for (i = 0; i < 50; i++) udelay(1000); /* wait 1 ms */ } else { addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080; addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00300030; /* sector erase */ } l_sect = sect; /* * Wait for each sector to complete, it's more * reliable. According to AMD Spec, you must * issue all erase commands within a specified * timeout. This has been seen to fail, especially * if printf()s are included (for debug)!! */ wait_for_DQ7_1(info, sect); } } /* re-enable interrupts if necessary */ if (flag) enable_interrupts(); /* wait at least 80us - let's wait 1 ms */ udelay(1000); /* reset to read mode */ addr = (CFG_FLASH_WORD_SIZE *) info->start[0]; addr[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */ printf(" done\n"); return 0; } /*----------------------------------------------------------------------- * Copy memory to flash, returns: * 0 - OK * 1 - write timeout * 2 - Flash not erased */ int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt) { ulong cp, wp, data; int i, l, rc; wp = (addr & ~3); /* get lower word aligned address */ /* * handle unaligned start bytes */ if ((l = addr - wp) != 0) { data = 0; for (i = 0, cp = wp; i < l; ++i, ++cp) { data = (data << 8) | (*(uchar *) cp); } for (; i < 4 && cnt > 0; ++i) { data = (data << 8) | *src++; --cnt; ++cp; } for (; cnt == 0 && i < 4; ++i, ++cp) { data = (data << 8) | (*(uchar *) cp); } if ((rc = write_word(info, wp, data)) != 0) { return rc; } wp += 4; } /* * handle word aligned part */ while (cnt >= 4) { data = 0; for (i = 0; i < 4; ++i) { data = (data << 8) | *src++; } if ((rc = write_word(info, wp, data)) != 0) { return rc; } wp += 4; cnt -= 4; } if (cnt == 0) { return 0; } /* * handle unaligned tail bytes */ data = 0; for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) { data = (data << 8) | *src++; --cnt; } for (; i < 4; ++i, ++cp) { data = (data << 8) | (*(uchar *) cp); } return (write_word(info, wp, data)); } /*----------------------------------------------------------------------- * Copy memory to flash, returns: * 0 - OK * 1 - write timeout * 2 - Flash not erased */ #ifdef FLASH_BASE1_PRELIM static int write_word(flash_info_t * info, ulong dest, ulong data) { if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) || ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) || ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) || ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) || ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) { return write_word_2(info, dest, data); } else { return write_word_1(info, dest, data); } } static int write_word_1(flash_info_t * info, ulong dest, ulong data) #else static int write_word(flash_info_t * info, ulong dest, ulong data) #endif { volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[0]); volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *) dest; volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *) & data; ulong start; int i; /* Check if Flash is (sufficiently) erased */ if ((*((vu_long *)dest) & data) != data) { return 2; } for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) { int flag; /* Disable interrupts which might cause a timeout here */ flag = disable_interrupts(); addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00A000A0; dest2[i] = data2[i]; /* re-enable interrupts if necessary */ if (flag) enable_interrupts(); /* data polling for D7 */ start = get_timer(0); while ((dest2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080) != (data2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080)) { if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { return 1; } } } return 0; } #ifdef FLASH_BASE1_PRELIM /* * The following code cannot be run from FLASH! */ static ulong flash_get_size_2(vu_long * addr, flash_info_t * info) { short i; CFG_FLASH_CHAR_SIZE value; ulong base = (ulong) addr; volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr; DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr); /* Write auto select command: read Manufacturer ID */ addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA; addr2[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555; addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090; udelay(1000); value = (CFG_FLASH_CHAR_SIZE)addr2[0]; DEBUGF("FLASH MANUFACT: %x\n", value); switch (value) { case (CFG_FLASH_CHAR_SIZE) AMD_MANUFACT: info->flash_id = FLASH_MAN_AMD; break; case (CFG_FLASH_CHAR_SIZE) FUJ_MANUFACT: info->flash_id = FLASH_MAN_FUJ; break; case (CFG_FLASH_CHAR_SIZE) SST_MANUFACT: info->flash_id = FLASH_MAN_SST; break; case (CFG_FLASH_CHAR_SIZE) STM_MANUFACT: info->flash_id = FLASH_MAN_STM; break; default: info->flash_id = FLASH_UNKNOWN; info->sector_count = 0; info->size = 0; return 0; /* no or unknown flash */ } value = (CFG_FLASH_CHAR_SIZE)addr2[2]; /* device ID */ DEBUGF("\nFLASH DEVICEID: %x\n", value); switch (value) { case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV040B: info->flash_id += FLASH_AM040; info->sector_count = 8; info->size = 0x0080000; /* => 512 ko */ break; case (CFG_FLASH_CHAR_SIZE) AMD_ID_F040B: info->flash_id += FLASH_AM040; info->sector_count = 8; info->size = 0x0080000; /* => 512 ko */ break; case (CFG_FLASH_CHAR_SIZE) STM_ID_M29W040B: info->flash_id += FLASH_AM040; info->sector_count = 8; info->size = 0x0080000; /* => 512 ko */ break; case (CFG_FLASH_CHAR_SIZE) AMD_ID_F016D: info->flash_id += FLASH_AMD016; info->sector_count = 32; info->size = 0x00200000; break; /* => 2 MB */ case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV033C: info->flash_id += FLASH_AMDLV033C; info->sector_count = 64; info->size = 0x00400000; break; /* => 4 MB */ case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV400T: info->flash_id += FLASH_AM400T; info->sector_count = 11; info->size = 0x00080000; break; /* => 0.5 MB */ case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV400B: info->flash_id += FLASH_AM400B; info->sector_count = 11; info->size = 0x00080000; break; /* => 0.5 MB */ case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV800T: info->flash_id += FLASH_AM800T; info->sector_count = 19; info->size = 0x00100000; break; /* => 1 MB */ case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV800B: info->flash_id += FLASH_AM800B; info->sector_count = 19; info->size = 0x00100000; break; /* => 1 MB */ case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV160T: info->flash_id += FLASH_AM160T; info->sector_count = 35; info->size = 0x00200000; break; /* => 2 MB */ case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV160B: info->flash_id += FLASH_AM160B; info->sector_count = 35; info->size = 0x00200000; break; /* => 2 MB */ case (CFG_FLASH_CHAR_SIZE) AMD_ID_MIRROR: if ((CFG_FLASH_CHAR_SIZE)addr2[0x1c] == (CFG_FLASH_CHAR_SIZE)AMD_ID_LV128U_2 && (CFG_FLASH_CHAR_SIZE)addr2[0x1e] == (CFG_FLASH_CHAR_SIZE)AMD_ID_LV128U_3) { info->flash_id += FLASH_AMLV128U; info->sector_count = 256; info->size = 0x01000000; } else if ((CFG_FLASH_CHAR_SIZE)addr2[0x1c] == (CFG_FLASH_CHAR_SIZE)AMD_ID_GL128N_2 && (CFG_FLASH_CHAR_SIZE)addr2[0x1e] == (CFG_FLASH_CHAR_SIZE)AMD_ID_GL128N_3 ) { info->flash_id += FLASH_S29GL128N; info->sector_count = 128; info->size = 0x01000000; } else info->flash_id = FLASH_UNKNOWN; break; /* => 2 MB */ default: info->flash_id = FLASH_UNKNOWN; return 0; /* => no or unknown flash */ } /* set up sector start address table */ if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) || ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) || ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) { for (i = 0; i < info->sector_count; i++) info->start[i] = base + (i * 0x00010000); } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) { for (i = 0; i < info->sector_count; i++) info->start[i] = base + (i * 0x00010000); } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) { for (i = 0; i < info->sector_count; i++) info->start[i] = base + (i * 0x00020000); } else { if (info->flash_id & FLASH_BTYPE) { /* set sector offsets for bottom boot block type */ info->start[0] = base + 0x00000000; info->start[1] = base + 0x00004000; info->start[2] = base + 0x00006000; info->start[3] = base + 0x00008000; for (i = 4; i < info->sector_count; i++) { info->start[i] = base + (i * 0x00010000) - 0x00030000; } } else { /* set sector offsets for top boot block type */ i = info->sector_count - 1; info->start[i--] = base + info->size - 0x00004000; info->start[i--] = base + info->size - 0x00006000; info->start[i--] = base + info->size - 0x00008000; for (; i >= 0; i--) { info->start[i] = base + i * 0x00010000; } } } /* check for protected sectors */ for (i = 0; i < info->sector_count; i++) { /* read sector protection at sector address, (A7 .. A0) = 0x02 */ /* D0 = 1 if protected */ addr2 = (volatile CFG_FLASH_WORD_SIZE *)(info->start[i]); /* For AMD29033C flash we need to resend the command of * * reading flash protection for upper 8 Mb of flash */ if (i == 32) { addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA; addr2[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555; addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090; } if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) info->protect[i] = 0; else info->protect[i] = (CFG_FLASH_CHAR_SIZE)addr2[4] & 1; } /* issue bank reset to return to read mode */ addr2[0] = (CFG_FLASH_WORD_SIZE) 0xF0F0F0F0; return info->size; } static int wait_for_DQ7_2(flash_info_t * info, int sect) { ulong start, now, last; volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[sect]); start = get_timer(0); last = start; while (((CFG_FLASH_WORD_SIZE)addr[0] & (CFG_FLASH_WORD_SIZE) 0x80808080) != (CFG_FLASH_WORD_SIZE) 0x80808080) { if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) { printf("Timeout\n"); return -1; } /* show that we're waiting */ if ((now - last) > 1000) { /* every second */ putc('.'); last = now; } } return 0; } static int flash_erase_2(flash_info_t * info, int s_first, int s_last) { volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[0]); volatile CFG_FLASH_WORD_SIZE *addr2; int flag, prot, sect, l_sect; int i; 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_UNKNOWN) { printf("Can't erase unknown flash type - 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"); } l_sect = -1; /* Disable interrupts which might cause a timeout here */ flag = disable_interrupts(); /* Start erase on unprotected sectors */ for (sect = s_first; sect <= s_last; sect++) { if (info->protect[sect] == 0) { /* not protected */ addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]); if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) { addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA; addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555; addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x80808080; addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA; addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555; addr2[0] = (CFG_FLASH_WORD_SIZE) 0x50505050; /* block erase */ for (i = 0; i < 50; i++) udelay(1000); /* wait 1 ms */ } else { addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA; addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555; addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x80808080; addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA; addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555; addr2[0] = (CFG_FLASH_WORD_SIZE) 0x30303030; /* sector erase */ } l_sect = sect; /* * Wait for each sector to complete, it's more * reliable. According to AMD Spec, you must * issue all erase commands within a specified * timeout. This has been seen to fail, especially * if printf()s are included (for debug)!! */ wait_for_DQ7_2(info, sect); } } /* re-enable interrupts if necessary */ if (flag) enable_interrupts(); /* wait at least 80us - let's wait 1 ms */ udelay(1000); /* reset to read mode */ addr = (CFG_FLASH_WORD_SIZE *) info->start[0]; addr[0] = (CFG_FLASH_WORD_SIZE) 0xF0F0F0F0; /* reset bank */ printf(" done\n"); return 0; } static int write_word_2(flash_info_t * info, ulong dest, ulong data) { volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[0]); volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *) dest; volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *) & data; ulong start; int i; /* Check if Flash is (sufficiently) erased */ if ((*((vu_long *)dest) & data) != data) { return 2; } for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) { int flag; /* Disable interrupts which might cause a timeout here */ flag = disable_interrupts(); addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA; addr2[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555; addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xA0A0A0A0; dest2[i] = data2[i]; /* re-enable interrupts if necessary */ if (flag) enable_interrupts(); /* data polling for D7 */ start = get_timer(0); while ((dest2[i] & (CFG_FLASH_WORD_SIZE) 0x80808080) != (data2[i] & (CFG_FLASH_WORD_SIZE) 0x80808080)) { if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { return 1; } } } return 0; } #endif /* FLASH_BASE1_PRELIM */