diff options
Diffstat (limited to 'board/amcc/taihu/flash.c')
| -rw-r--r-- | board/amcc/taihu/flash.c | 1063 |
1 files changed, 0 insertions, 1063 deletions
diff --git a/board/amcc/taihu/flash.c b/board/amcc/taihu/flash.c deleted file mode 100644 index 0780488888..0000000000 --- a/board/amcc/taihu/flash.c +++ /dev/null @@ -1,1063 +0,0 @@ -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* - * 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 <asm/ppc4xx.h> -#include <asm/processor.h> - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ - -#undef DEBUG -#ifdef DEBUG -#define DEBUGF(x...) printf(x) -#else -#define DEBUGF(x...) -#endif /* DEBUG */ - -#define CONFIG_SYS_FLASH_CHAR_SIZE unsigned char -#define CONFIG_SYS_FLASH_CHAR_ADDR0 (0x0aaa) -#define CONFIG_SYS_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 < CONFIG_SYS_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, - CONFIG_SYS_MONITOR_BASE, - CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1, - &flash_info[0]); -#ifdef CONFIG_ENV_IS_IN_FLASH - (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR, - CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1, - &flash_info[0]); - (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND, - CONFIG_ENV_ADDR_REDUND + CONFIG_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; - CONFIG_SYS_FLASH_WORD_SIZE value; - ulong base = (ulong) addr; - volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr; - - DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr); - - /* Write auto select command: read Manufacturer ID */ - addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA; - addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055; - addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00900090; - udelay(1000); - - value = addr2[0]; - DEBUGF("FLASH MANUFACT: %x\n", value); - - switch (value) { - case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_MANUFACT: - info->flash_id = FLASH_MAN_AMD; - break; - case (CONFIG_SYS_FLASH_WORD_SIZE) FUJ_MANUFACT: - info->flash_id = FLASH_MAN_FUJ; - break; - case (CONFIG_SYS_FLASH_WORD_SIZE) SST_MANUFACT: - info->flash_id = FLASH_MAN_SST; - break; - case (CONFIG_SYS_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 (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x0080000; /* => 512 ko */ - break; - - case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_F040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x0080000; /* => 512 ko */ - break; - - case (CONFIG_SYS_FLASH_WORD_SIZE) STM_ID_M29W040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x0080000; /* => 512 ko */ - break; - - case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_F016D: - info->flash_id += FLASH_AMD016; - info->sector_count = 32; - info->size = 0x00200000; - break; /* => 2 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV033C: - info->flash_id += FLASH_AMDLV033C; - info->sector_count = 64; - info->size = 0x00400000; - break; /* => 4 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV400T: - info->flash_id += FLASH_AM400T; - info->sector_count = 11; - info->size = 0x00080000; - break; /* => 0.5 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV400B: - info->flash_id += FLASH_AM400B; - info->sector_count = 11; - info->size = 0x00080000; - break; /* => 0.5 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV800T: - info->flash_id += FLASH_AM800T; - info->sector_count = 19; - info->size = 0x00100000; - break; /* => 1 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV800B: - info->flash_id += FLASH_AM800B; - info->sector_count = 19; - info->size = 0x00100000; - break; /* => 1 MB */ - - case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_ID_LV160T: - info->flash_id += FLASH_AM160T; - info->sector_count = 35; - info->size = 0x00200000; - break; /* => 2 MB */ - - case (CONFIG_SYS_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 CONFIG_SYS_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[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA; - addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555; - addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_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] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0; - - return info->size; -} - -static int wait_for_DQ7_1(flash_info_t * info, int sect) -{ - ulong start, now, last; - volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = - (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]); - - start = get_timer(0); - last = start; - while ((addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) != - (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) { - if ((now = get_timer(start)) > CONFIG_SYS_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 CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]); - volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2; - int flag, prot, 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"); - } - - /* 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 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]); - - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) { - addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA; - addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055; - addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080; - addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA; - addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055; - addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00500050; /* block erase */ - for (i = 0; i < 50; i++) - udelay(1000); /* wait 1 ms */ - } else { - addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA; - addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055; - addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080; - addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA; - addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055; - addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00300030; /* sector erase */ - } - /* - * 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 = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0]; - addr[0] = (CONFIG_SYS_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 -{ - ulong *data_ptr = &data; - volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[0]); - volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *)dest; - volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *)data_ptr; - ulong start; - int i; - - /* Check if Flash is (sufficiently) erased */ - if ((*((vu_long *)dest) & data) != data) { - return 2; - } - - for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) { - int flag; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA; - addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055; - addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_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] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) != - (data2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080)) { - - if (get_timer(start) > CONFIG_SYS_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; - CONFIG_SYS_FLASH_CHAR_SIZE value; - ulong base = (ulong) addr; - volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr; - - DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr); - - /* Write auto select command: read Manufacturer ID */ - addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA; - addr2[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555; - addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90909090; - udelay(1000); - - value = (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0]; - DEBUGF("FLASH MANUFACT: %x\n", value); - - switch (value) { - case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_MANUFACT: - info->flash_id = FLASH_MAN_AMD; - break; - case (CONFIG_SYS_FLASH_CHAR_SIZE) FUJ_MANUFACT: - info->flash_id = FLASH_MAN_FUJ; - break; - case (CONFIG_SYS_FLASH_CHAR_SIZE) SST_MANUFACT: - info->flash_id = FLASH_MAN_SST; - break; - case (CONFIG_SYS_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 = (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[2]; /* device ID */ - DEBUGF("\nFLASH DEVICEID: %x\n", value); - - switch (value) { - case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x0080000; /* => 512 ko */ - break; - - case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_F040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x0080000; /* => 512 ko */ - break; - - case (CONFIG_SYS_FLASH_CHAR_SIZE) STM_ID_M29W040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x0080000; /* => 512 ko */ - break; - - case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_F016D: - info->flash_id += FLASH_AMD016; - info->sector_count = 32; - info->size = 0x00200000; - break; /* => 2 MB */ - - case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV033C: - info->flash_id += FLASH_AMDLV033C; - info->sector_count = 64; - info->size = 0x00400000; - break; /* => 4 MB */ - - case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV400T: - info->flash_id += FLASH_AM400T; - info->sector_count = 11; - info->size = 0x00080000; - break; /* => 0.5 MB */ - - case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV400B: - info->flash_id += FLASH_AM400B; - info->sector_count = 11; - info->size = 0x00080000; - break; /* => 0.5 MB */ - - case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV800T: - info->flash_id += FLASH_AM800T; - info->sector_count = 19; - info->size = 0x00100000; - break; /* => 1 MB */ - - case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV800B: - info->flash_id += FLASH_AM800B; - info->sector_count = 19; - info->size = 0x00100000; - break; /* => 1 MB */ - - case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV160T: - info->flash_id += FLASH_AM160T; - info->sector_count = 35; - info->size = 0x00200000; - break; /* => 2 MB */ - - case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_LV160B: - info->flash_id += FLASH_AM160B; - info->sector_count = 35; - info->size = 0x00200000; - break; /* => 2 MB */ - case (CONFIG_SYS_FLASH_CHAR_SIZE) AMD_ID_MIRROR: - if ((CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1c] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_LV128U_2 - && (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1e] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_LV128U_3) { - info->flash_id += FLASH_AMLV128U; - info->sector_count = 256; - info->size = 0x01000000; - } else if ((CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1c] == (CONFIG_SYS_FLASH_CHAR_SIZE)AMD_ID_GL128N_2 - && (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[0x1e] == (CONFIG_SYS_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 CONFIG_SYS_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[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA; - addr2[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555; - addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90909090; - } - - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) - info->protect[i] = 0; - else - info->protect[i] = (CONFIG_SYS_FLASH_CHAR_SIZE)addr2[4] & 1; - } - - /* issue bank reset to return to read mode */ - addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xF0F0F0F0; - return info->size; -} - -static int wait_for_DQ7_2(flash_info_t * info, int sect) -{ - ulong start, now, last; - volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = - (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]); - - start = get_timer(0); - last = start; - while (((CONFIG_SYS_FLASH_WORD_SIZE)addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080) != - (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080) { - if ((now = get_timer(start)) > CONFIG_SYS_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 CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]); - volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2; - int flag, prot, 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"); - } - - /* 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 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]); - - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) { - addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA; - addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555; - addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080; - addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA; - addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555; - addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x50505050; /* block erase */ - for (i = 0; i < 50; i++) - udelay(1000); /* wait 1 ms */ - } else { - addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA; - addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555; - addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080; - addr[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA; - addr[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555; - addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x30303030; /* sector erase */ - } - /* - * 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 = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0]; - addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xF0F0F0F0; /* reset bank */ - - printf(" done\n"); - return 0; -} - -static int write_word_2(flash_info_t * info, ulong dest, ulong data) -{ - ulong *data_ptr = &data; - volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[0]); - volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *)dest; - volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *)data_ptr; - ulong start; - int i; - - /* Check if Flash is (sufficiently) erased */ - if ((*((vu_long *)dest) & data) != data) { - return 2; - } - - for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) { - int flag; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAAAAAAAA; - addr2[CONFIG_SYS_FLASH_CHAR_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55555555; - addr2[CONFIG_SYS_FLASH_CHAR_ADDR0] = (CONFIG_SYS_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] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080) != - (data2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80808080)) { - - if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { - return 1; - } - } - } - - return 0; -} - -#endif /* FLASH_BASE1_PRELIM */ |
