diff options
Diffstat (limited to 'board/w7o')
| -rw-r--r-- | board/w7o/flash.c | 1428 |
1 files changed, 716 insertions, 712 deletions
diff --git a/board/w7o/flash.c b/board/w7o/flash.c index 184661b..e45401a 100644 --- a/board/w7o/flash.c +++ b/board/w7o/flash.c @@ -29,639 +29,652 @@ #include <watchdog.h> -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ +/* info for FLASH chips */ +flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; -/*----------------------------------------------------------------------- +/* * Functions */ -static ulong flash_get_size (vu_long *addr, flash_info_t *info); +static ulong flash_get_size(vu_long *addr, flash_info_t *info); static int write_word8(flash_info_t *info, ulong dest, ulong data); -static int write_word32 (flash_info_t *info, ulong dest, ulong data); -static void flash_get_offsets (ulong base, flash_info_t *info); - -/*----------------------------------------------------------------------- - */ +static int write_word32(flash_info_t *info, ulong dest, ulong data); +static void flash_get_offsets(ulong base, flash_info_t *info); -unsigned long flash_init (void) +unsigned long flash_init(void) { - int i; - unsigned long size_b0, base_b0; - unsigned long size_b1, base_b1; - - /* Init: no FLASHes known */ - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) { - flash_info[i].flash_id = FLASH_UNKNOWN; - } - - /* Get Size of Boot and Main Flashes */ - 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); - return 0; - } - size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]); - 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); - return 0; - } - - /* Calculate base addresses */ - base_b0 = -size_b0; - base_b1 = -size_b1; + int i; + unsigned long size_b0, base_b0; + unsigned long size_b1, base_b1; + + /* Init: no FLASHes known */ + for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) + flash_info[i].flash_id = FLASH_UNKNOWN; + + /* Get Size of Boot and Main Flashes */ + 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); + return 0; + } + size_b1 = + flash_get_size((vu_long *) FLASH_BASE1_PRELIM, + &flash_info[1]); + 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); + return 0; + } - /* Setup offsets for Boot Flash */ - flash_get_offsets (base_b0, &flash_info[0]); + /* Calculate base addresses */ + base_b0 = -size_b0; + base_b1 = -size_b1; - /* Protect board level data */ - (void)flash_protect(FLAG_PROTECT_SET, - base_b0, - flash_info[0].start[1] - 1, - &flash_info[0]); + /* Setup offsets for Boot Flash */ + flash_get_offsets(base_b0, &flash_info[0]); + /* Protect board level data */ + (void) flash_protect(FLAG_PROTECT_SET, + base_b0, + flash_info[0].start[1] - 1, &flash_info[0]); - /* Monitor protection ON by default */ - (void)flash_protect(FLAG_PROTECT_SET, - base_b0 + size_b0 - monitor_flash_len, - base_b0 + size_b0 - 1, - &flash_info[0]); + /* Monitor protection ON by default */ + (void) flash_protect(FLAG_PROTECT_SET, + base_b0 + size_b0 - monitor_flash_len, + base_b0 + size_b0 - 1, &flash_info[0]); - /* Protect the FPGA image */ - (void)flash_protect(FLAG_PROTECT_SET, - FLASH_BASE1_PRELIM, - FLASH_BASE1_PRELIM + CONFIG_SYS_FPGA_IMAGE_LEN - 1, - &flash_info[1]); + /* Protect the FPGA image */ + (void) flash_protect(FLAG_PROTECT_SET, + FLASH_BASE1_PRELIM, + FLASH_BASE1_PRELIM + CONFIG_SYS_FPGA_IMAGE_LEN - + 1, &flash_info[1]); - /* Protect the default boot image */ - (void)flash_protect(FLAG_PROTECT_SET, - FLASH_BASE1_PRELIM + CONFIG_SYS_FPGA_IMAGE_LEN, - FLASH_BASE1_PRELIM + CONFIG_SYS_FPGA_IMAGE_LEN + 0x600000 - 1, - &flash_info[1]); + /* Protect the default boot image */ + (void) flash_protect(FLAG_PROTECT_SET, + FLASH_BASE1_PRELIM + CONFIG_SYS_FPGA_IMAGE_LEN, + FLASH_BASE1_PRELIM + CONFIG_SYS_FPGA_IMAGE_LEN + + 0x600000 - 1, &flash_info[1]); - /* Setup offsets for Main Flash */ - flash_get_offsets (FLASH_BASE1_PRELIM, &flash_info[1]); + /* Setup offsets for Main Flash */ + flash_get_offsets(FLASH_BASE1_PRELIM, &flash_info[1]); - return (size_b0 + size_b1); -} /* end flash_init() */ + return size_b0 + size_b1; +} -/*----------------------------------------------------------------------- - */ -static void flash_get_offsets (ulong base, flash_info_t *info) +static void flash_get_offsets(ulong base, flash_info_t *info) { - int i; + int i; - /* set up sector start address table - FOR BOOT ROM ONLY!!! */ - if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) { - for (i = 0; i < info->sector_count; i++) - info->start[i] = base + (i * 0x00010000); - } -} /* end flash_get_offsets() */ + /* set up sector start address table - FOR BOOT ROM ONLY!!! */ + if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) { + for (i = 0; i < info->sector_count; i++) + info->start[i] = base + (i * 0x00010000); + } +} /* end flash_get_offsets() */ -/*----------------------------------------------------------------------- - */ -void flash_print_info (flash_info_t *info) +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 ("1 x AMD "); break; - case FLASH_MAN_STM: printf ("1 x STM "); break; - case FLASH_MAN_INTEL: printf ("2 x Intel "); break; - default: printf ("Unknown Vendor "); - } - - switch (info->flash_id & FLASH_TYPEMASK) { + 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("1 x AMD "); + break; + case FLASH_MAN_STM: + printf("1 x STM "); + break; + case FLASH_MAN_INTEL: + printf("2 x Intel "); + break; + default: + printf("Unknown Vendor "); + } + + switch (info->flash_id & FLASH_TYPEMASK) { case FLASH_AM040: - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD) - printf ("AM29LV040 (4096 Kbit, uniform sector size)\n"); - else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_STM) - printf ("M29W040B (4096 Kbit, uniform block size)\n"); - else - printf ("UNKNOWN 29x040x (4096 Kbit, uniform sector size)\n"); - break; + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD) + printf("AM29LV040 (4096 Kbit, uniform sector size)\n"); + else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_STM) + printf("M29W040B (4096 Kbit, uniform block size)\n"); + else + printf("UNKNOWN 29x040x (4096 Kbit, uniform sector size)\n"); + break; case FLASH_28F320J3A: - printf ("28F320J3A (32 Mbit = 128K x 32)\n"); - break; + printf("28F320J3A (32 Mbit = 128K x 32)\n"); + break; case FLASH_28F640J3A: - printf ("28F640J3A (64 Mbit = 128K x 64)\n"); - break; + printf("28F640J3A (64 Mbit = 128K x 64)\n"); + break; case FLASH_28F128J3A: - printf ("28F128J3A (128 Mbit = 128K x 128)\n"); - break; - default: - printf ("Unknown Chip Type\n"); - } - - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_STM) { - printf (" Size: %ld KB in %d Blocks\n", - info->size >> 10, info->sector_count); - } else { - 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; + printf("28F128J3A (128 Mbit = 128K x 128)\n"); break; - } + default: + printf("Unknown Chip Type\n"); + } + + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_STM) { + printf(" Size: %ld KB in %d Blocks\n", + info->size >> 10, info->sector_count); + } else { + printf(" Size: %ld KB in %d Sectors\n", + info->size >> 10, info->sector_count); } - if ((i % 5) == 0) - printf ("\n "); - printf (" %08lX%s%s", - info->start[i], - erased ? " E" : " ", - info->protect[i] ? "RO " : " " - ); - } - printf ("\n"); -} /* end flash_print_info() */ + 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"); +} /* end flash_print_info() */ /* * The following code cannot be run from FLASH! */ -static ulong flash_get_size (vu_long *addr, flash_info_t *info) +static ulong flash_get_size(vu_long *addr, flash_info_t *info) { - short i; - ulong base = (ulong)addr; - - /* Setup default type */ - info->flash_id = FLASH_UNKNOWN; - info->sector_count =0; - info->size = 0; - - /* Test for Boot Flash */ - if (base == FLASH_BASE0_PRELIM) { - unsigned char value; - volatile unsigned char * addr2 = (unsigned char *)addr; - - /* Write auto select command: read Manufacturer ID */ - *(addr2 + 0x555) = 0xaa; - *(addr2 + 0x2aa) = 0x55; - *(addr2 + 0x555) = 0x90; - - /* Manufacture ID */ - value = *addr2; - switch (value) { - case (unsigned char)AMD_MANUFACT: - info->flash_id = FLASH_MAN_AMD; - break; - case (unsigned char)STM_MANUFACT: - info->flash_id = FLASH_MAN_STM; - break; - default: - *addr2 = 0xf0; /* no or unknown flash */ - return 0; - } + short i; + ulong base = (ulong) addr; + + /* Setup default type */ + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + + /* Test for Boot Flash */ + if (base == FLASH_BASE0_PRELIM) { + unsigned char value; + volatile unsigned char *addr2 = (unsigned char *) addr; + + /* Write auto select command: read Manufacturer ID */ + *(addr2 + 0x555) = 0xaa; + *(addr2 + 0x2aa) = 0x55; + *(addr2 + 0x555) = 0x90; + + /* Manufacture ID */ + value = *addr2; + switch (value) { + case (unsigned char) AMD_MANUFACT: + info->flash_id = FLASH_MAN_AMD; + break; + case (unsigned char) STM_MANUFACT: + info->flash_id = FLASH_MAN_STM; + break; + default: + *addr2 = 0xf0; /* no or unknown flash */ + return 0; + } - /* Device ID */ - value = *(addr2 + 1); - switch (value) { - case (unsigned char)AMD_ID_LV040B: - case (unsigned char)STM_ID_29W040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x00080000; - break; /* => 512Kb */ - default: - *addr2 = 0xf0; /* => no or unknown flash */ - return 0; - } - } - else { /* MAIN Flash */ - unsigned long value; - volatile unsigned long * addr2 = (unsigned long *)addr; + /* Device ID */ + value = *(addr2 + 1); + switch (value) { + case (unsigned char) AMD_ID_LV040B: + case (unsigned char) STM_ID_29W040B: + info->flash_id += FLASH_AM040; + info->sector_count = 8; + info->size = 0x00080000; + break; /* => 512Kb */ + default: + *addr2 = 0xf0; /* => no or unknown flash */ + return 0; + } + } else { /* MAIN Flash */ + unsigned long value; + volatile unsigned long *addr2 = (unsigned long *) addr; + + /* Write auto select command: read Manufacturer ID */ + *addr2 = 0x90909090; + + /* Manufacture ID */ + value = *addr2; + switch (value) { + case (unsigned long) INTEL_MANUFACT: + info->flash_id = FLASH_MAN_INTEL; + break; + default: + *addr2 = 0xff; /* no or unknown flash */ + return 0; + } - /* Write auto select command: read Manufacturer ID */ - *addr2 = 0x90909090; + /* Device ID - This shit is interleaved... */ + value = *(addr2 + 1); + switch (value) { + case (unsigned long) INTEL_ID_28F320J3A: + info->flash_id += FLASH_28F320J3A; + info->sector_count = 32; + info->size = 0x00400000 * 2; + break; /* => 2 X 4 MB */ + case (unsigned long) INTEL_ID_28F640J3A: + info->flash_id += FLASH_28F640J3A; + info->sector_count = 64; + info->size = 0x00800000 * 2; + break; /* => 2 X 8 MB */ + case (unsigned long) INTEL_ID_28F128J3A: + info->flash_id += FLASH_28F128J3A; + info->sector_count = 128; + info->size = 0x01000000 * 2; + break; /* => 2 X 16 MB */ + default: + *addr2 = 0xff; /* => no or unknown flash */ + } + } - /* Manufacture ID */ - value = *addr2; - switch (value) { - case (unsigned long)INTEL_MANUFACT: - info->flash_id = FLASH_MAN_INTEL; - break; - default: - *addr2 = 0xff; /* no or unknown flash */ - return 0; + /* Make sure we don't exceed CONFIG_SYS_MAX_FLASH_SECT */ + 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; } - /* Device ID - This shit is interleaved... */ - value = *(addr2 + 1); - switch (value) { - case (unsigned long)INTEL_ID_28F320J3A: - info->flash_id += FLASH_28F320J3A; - info->sector_count = 32; - info->size = 0x00400000 * 2; - break; /* => 2 X 4 MB */ - case (unsigned long)INTEL_ID_28F640J3A: - info->flash_id += FLASH_28F640J3A; - info->sector_count = 64; - info->size = 0x00800000 * 2; - break; /* => 2 X 8 MB */ - case (unsigned long)INTEL_ID_28F128J3A: - info->flash_id += FLASH_28F128J3A; - info->sector_count = 128; - info->size = 0x01000000 * 2; - break; /* => 2 X 16 MB */ - default: - *addr2 = 0xff; /* => no or unknown flash */ - } - } - - /* Make sure we don't exceed CONFIG_SYS_MAX_FLASH_SECT */ - 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; - } - - /* set up sector start address table */ - switch (info->flash_id & FLASH_TYPEMASK) { + /* set up sector start address table */ + switch (info->flash_id & FLASH_TYPEMASK) { case FLASH_AM040: - for (i = 0; i < info->sector_count; i++) - info->start[i] = base + (i * 0x00010000); - break; + for (i = 0; i < info->sector_count; i++) + info->start[i] = base + (i * 0x00010000); + break; case FLASH_28F320J3A: case FLASH_28F640J3A: case FLASH_28F128J3A: - for (i = 0; i < info->sector_count; i++) - info->start[i] = base + (i * 0x00020000 * 2); /* 2 Banks */ - break; - } - - /* Test for Boot Flash */ - if (base == FLASH_BASE0_PRELIM) { - volatile unsigned char *addr2; - /* check for protected sectors */ - for (i = 0; i < info->sector_count; i++) { - /* read sector protection at sector address, (AX .. A0) = 0x02 */ - /* D0 = 1 if protected */ - addr2 = (volatile unsigned char *)(info->start[i]); - info->protect[i] = *(addr2 + 2) & 1; - } - - /* Restore read mode */ - *(unsigned char *)base = 0xF0; /* Reset NORMAL Flash */ - } - else { /* Main Flash */ - volatile unsigned long *addr2; - /* check for protected sectors */ - for (i = 0; i < info->sector_count; i++) { - /* read sector protection at sector address, (AX .. A0) = 0x02 */ - /* D0 = 1 if protected */ - addr2 = (volatile unsigned long *)(info->start[i]); - info->protect[i] = *(addr2 + 2) & 0x1; + for (i = 0; i < info->sector_count; i++) + info->start[i] = base + + (i * 0x00020000 * 2); /* 2 Banks */ + break; } - /* Restore read mode */ - *(unsigned long *)base = 0xFFFFFFFF; /* Reset Flash */ - } + /* Test for Boot Flash */ + if (base == FLASH_BASE0_PRELIM) { + volatile unsigned char *addr2; + + /* check for protected sectors */ + for (i = 0; i < info->sector_count; i++) { + /* + * read sector protection at sector address, + * (AX .. A0) = 0x02 + * D0 = 1 if protected + */ + addr2 = (volatile unsigned char *) (info->start[i]); + info->protect[i] = *(addr2 + 2) & 1; + } + + /* Restore read mode */ + *(unsigned char *) base = 0xF0; /* Reset NORMAL Flash */ + } else { /* Main Flash */ + volatile unsigned long *addr2; + + /* check for protected sectors */ + for (i = 0; i < info->sector_count; i++) { + /* + * read sector protection at sector address, + * (AX .. A0) = 0x02 + * D0 = 1 if protected + */ + addr2 = (volatile unsigned long *) (info->start[i]); + info->protect[i] = *(addr2 + 2) & 0x1; + } - return (info->size); -} /* end flash_get_size() */ + /* Restore read mode */ + *(unsigned long *) base = 0xFFFFFFFF; /* Reset Flash */ + } -/*----------------------------------------------------------------------- - */ + return info->size; +} /* end flash_get_size() */ static int wait_for_DQ7(ulong addr, uchar cmp_val, ulong tout) { - int i; + int i; - volatile uchar *vaddr = (uchar *)addr; + volatile uchar *vaddr = (uchar *) addr; - /* Loop X times */ - for (i = 1; i <= (100 * tout); i++) { /* Wait up to tout ms */ - udelay(10); - /* Pause 10 us */ - - /* Check for completion */ - if ((vaddr[0] & 0x80) == (cmp_val & 0x80)) { - return 0; - } + /* Loop X times */ + for (i = 1; i <= (100 * tout); i++) { /* Wait up to tout ms */ + udelay(10); + /* Pause 10 us */ - /* KEEP THE LUSER HAPPY - Print a dot every 1.1 seconds */ - if (!(i % 110000)) - putc('.'); + /* Check for completion */ + if ((vaddr[0] & 0x80) == (cmp_val & 0x80)) + return 0; - /* Kick the dog if needed */ - WATCHDOG_RESET(); - } + /* KEEP THE LUSER HAPPY - Print a dot every 1.1 seconds */ + if (!(i % 110000)) + putc('.'); - return 1; -} /* wait_for_DQ7() */ + /* Kick the dog if needed */ + WATCHDOG_RESET(); + } -/*----------------------------------------------------------------------- - */ + return 1; +} /* wait_for_DQ7() */ static int flash_erase8(flash_info_t *info, int s_first, int s_last) { - int tcode, rcode = 0; - volatile uchar *addr = (uchar *)(info->start[0]); - volatile uchar *sector_addr; - int flag, prot, sect; + int tcode, rcode = 0; + volatile uchar *addr = (uchar *) (info->start[0]); + volatile uchar *sector_addr; + int flag, prot, sect; + + /* Validate arguments */ + 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; + } - /* Validate arguments */ - 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; - } + /* Check for KNOWN flash type */ + if (info->flash_id == FLASH_UNKNOWN) { + printf("Can't erase unknown flash type - aborted\n"); + return 1; + } - /* Check for KNOWN flash type */ - if (info->flash_id == FLASH_UNKNOWN) { - printf ("Can't erase unknown flash type - aborted\n"); - return 1; - } - - /* Check for protected sectors */ - 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 erase on unprotected sectors */ - for (sect = s_first; sect <= s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - sector_addr = (uchar *)(info->start[sect]); - - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_STM) - printf("Erasing block %p\n", sector_addr); - else - printf("Erasing sector %p\n", sector_addr); - - /* Disable interrupts which might cause Flash to timeout */ - flag = disable_interrupts(); - - *(addr + 0x555) = (uchar)0xAA; - *(addr + 0x2aa) = (uchar)0x55; - *(addr + 0x555) = (uchar)0x80; - *(addr + 0x555) = (uchar)0xAA; - *(addr + 0x2aa) = (uchar)0x55; - *sector_addr = (uchar)0x30; /* 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)!! - * Takes up to 6 seconds. - */ - tcode = wait_for_DQ7((ulong)sector_addr, 0x80, 6000); - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); + /* Check for protected sectors */ + 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"); + } - /* Make sure we didn't timeout */ - if (tcode) { - printf ("Timeout\n"); - rcode = 1; - } + /* Start erase on unprotected sectors */ + for (sect = s_first; sect <= s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + sector_addr = (uchar *) (info->start[sect]); + + if ((info->flash_id & FLASH_VENDMASK) == + FLASH_MAN_STM) + printf("Erasing block %p\n", sector_addr); + else + printf("Erasing sector %p\n", sector_addr); + + /* Disable interrupts which might cause timeout */ + flag = disable_interrupts(); + + *(addr + 0x555) = (uchar) 0xAA; + *(addr + 0x2aa) = (uchar) 0x55; + *(addr + 0x555) = (uchar) 0x80; + *(addr + 0x555) = (uchar) 0xAA; + *(addr + 0x2aa) = (uchar) 0x55; + *sector_addr = (uchar) 0x30; /* 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)!! + * Takes up to 6 seconds. + */ + tcode = wait_for_DQ7((ulong) sector_addr, 0x80, 6000); + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + /* Make sure we didn't timeout */ + if (tcode) { + printf("Timeout\n"); + rcode = 1; + } + } } - } - /* wait at least 80us - let's wait 1 ms */ - udelay (1000); + /* wait at least 80us - let's wait 1 ms */ + udelay(1000); - /* reset to read mode */ - addr = (uchar *)info->start[0]; - *addr = (uchar)0xF0; /* reset bank */ + /* reset to read mode */ + addr = (uchar *) info->start[0]; + *addr = (uchar) 0xF0; /* reset bank */ - printf (" done\n"); - return rcode; -} /* end flash_erase8() */ + printf(" done\n"); + return rcode; +} /* end flash_erase8() */ static int flash_erase32(flash_info_t *info, int s_first, int s_last) { - int flag, sect; - ulong start, now, last; - int prot = 0; - - /* Validate arguments */ - 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; - } - - /* Check for KNOWN flash type */ - if ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL) { - printf ("Can erase only Intel flash types - aborted\n"); - return 1; - } - - /* Check for protected sectors */ - 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++) { - WATCHDOG_RESET(); - if (info->protect[sect] == 0) { /* not protected */ - vu_long *addr = (vu_long *)(info->start[sect]); - unsigned long status; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - *addr = 0x00500050; /* clear status register */ - *addr = 0x00200020; /* erase setup */ - *addr = 0x00D000D0; /* erase confirm */ - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); + int flag, sect; + ulong start, now, last; + int prot = 0; + + /* Validate arguments */ + 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; + } - /* Wait at least 80us - let's wait 1 ms */ - udelay (1000); + /* Check for KNOWN flash type */ + if ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL) { + printf("Can erase only Intel flash types - aborted\n"); + return 1; + } - while (((status = *addr) & 0x00800080) != 0x00800080) { - if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { - printf ("Timeout\n"); - *addr = 0x00B000B0; /* suspend erase */ - *addr = 0x00FF00FF; /* reset to read mode */ - return 1; - } + /* Check for protected sectors */ + 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"); + } - /* show that we're waiting */ - if ((now - last) > 990) { /* every second */ - putc ('.'); - last = now; + start = get_timer(0); + last = start; + /* Start erase on unprotected sectors */ + for (sect = s_first; sect <= s_last; sect++) { + WATCHDOG_RESET(); + if (info->protect[sect] == 0) { /* not protected */ + vu_long *addr = (vu_long *) (info->start[sect]); + unsigned long status; + + /* Disable interrupts which might cause a timeout */ + flag = disable_interrupts(); + + *addr = 0x00500050; /* clear status register */ + *addr = 0x00200020; /* erase setup */ + *addr = 0x00D000D0; /* erase confirm */ + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + /* Wait at least 80us - let's wait 1 ms */ + udelay(1000); + + while (((status = *addr) & 0x00800080) != 0x00800080) { + now = get_timer(start); + if (now > CONFIG_SYS_FLASH_ERASE_TOUT) { + printf("Timeout\n"); + /* suspend erase */ + *addr = 0x00B000B0; + /* reset to read mode */ + *addr = 0x00FF00FF; + return 1; + } + + /* + * show that we're waiting + * every second (?) + */ + if ((now - last) > 990) { + putc('.'); + last = now; + } + } + *addr = 0x00FF00FF; /* reset to read mode */ } - } - *addr = 0x00FF00FF; /* reset to read mode */ } - } - printf (" done\n"); - return 0; -} /* end flash_erase32() */ + printf(" done\n"); + return 0; +} int flash_erase(flash_info_t *info, int s_first, int s_last) { - if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) - return flash_erase8(info, s_first, s_last); - else - return flash_erase32(info, s_first, s_last); -} /* end flash_erase() */ + if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) + return flash_erase8(info, s_first, s_last); + else + return flash_erase32(info, s_first, s_last); +} -/*----------------------------------------------------------------------- +/* * Copy memory to flash, returns: * 0 - OK * 1 - write timeout * 2 - Flash not erased */ -static int write_buff8(flash_info_t *info, uchar *src, ulong addr, ulong cnt) +static int write_buff8(flash_info_t *info, uchar *src, ulong addr, + ulong cnt) { - ulong cp, wp, data; - ulong start; - int i, l, rc; + ulong cp, wp, data; + ulong start; + int i, l, rc; - start = get_timer (0); + start = get_timer(0); - wp = (addr & ~3); /* get lower word - aligned address */ + 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); + /* + * handle unaligned start bytes + */ + l = addr - wp; + if (l != 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); + + rc = write_word8(info, wp, data); + if (rc != 0) + return rc; + + wp += 4; } - if ((rc = write_word8(info, wp, data)) != 0) { - return (rc); + /* + * handle word aligned part + */ + while (cnt >= 4) { + data = 0; + for (i = 0; i < 4; ++i) + data = (data << 8) | *src++; + + rc = write_word8(info, wp, data); + if (rc != 0) + return rc; + + wp += 4; + cnt -= 4; + if (get_timer(start) > 1000) { /* every second */ + WATCHDOG_RESET(); + putc('.'); + start = get_timer(0); + } } - wp += 4; - } - /* - * handle word aligned part - */ - while (cnt >= 4) { + if (cnt == 0) + return 0; + + /* + * handle unaligned tail bytes + */ data = 0; - for (i=0; i<4; ++i) { - data = (data << 8) | *src++; - } - if ((rc = write_word8(info, wp, data)) != 0) { - return (rc); - } - wp += 4; - cnt -= 4; - if (get_timer(start) > 1000) { /* every second */ - WATCHDOG_RESET(); - putc ('.'); - start = get_timer(0); - } - } - - 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_word8(info, wp, data)); -} /* end write_buff8() */ + 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_word8(info, wp, data); +} #define FLASH_WIDTH 4 /* flash bus width in bytes */ -static int write_buff32 (flash_info_t *info, uchar *src, ulong addr, ulong cnt) +static int write_buff32(flash_info_t *info, uchar *src, ulong addr, + ulong cnt) { ulong cp, wp, data; int i, l, rc; ulong start; - start = get_timer (0); + start = get_timer(0); - if (info->flash_id == FLASH_UNKNOWN) { + if (info->flash_id == FLASH_UNKNOWN) return 4; - } - wp = (addr & ~(FLASH_WIDTH-1)); /* get lower FLASH_WIDTH aligned address */ + /* get lower FLASH_WIDTH aligned address */ + wp = (addr & ~(FLASH_WIDTH - 1)); /* * 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<FLASH_WIDTH && cnt>0; ++i) { + for (i = 0, cp = wp; i < l; ++i, ++cp) + data = (data << 8) | (*(uchar *) cp); + + for (; i < FLASH_WIDTH && cnt > 0; ++i) { data = (data << 8) | *src++; --cnt; ++cp; } - for (; cnt==0 && i<FLASH_WIDTH; ++i, ++cp) { - data = (data << 8) | (*(uchar *)cp); - } - if ((rc = write_word32(info, wp, data)) != 0) { - return (rc); - } + for (; cnt == 0 && i < FLASH_WIDTH; ++i, ++cp) + data = (data << 8) | (*(uchar *) cp); + + rc = write_word32(info, wp, data); + if (rc != 0) + return rc; + wp += FLASH_WIDTH; } @@ -670,52 +683,52 @@ static int write_buff32 (flash_info_t *info, uchar *src, ulong addr, ulong cnt) */ while (cnt >= FLASH_WIDTH) { data = 0; - for (i=0; i<FLASH_WIDTH; ++i) { + for (i = 0; i < FLASH_WIDTH; ++i) data = (data << 8) | *src++; - } - if ((rc = write_word32(info, wp, data)) != 0) { - return (rc); - } - wp += FLASH_WIDTH; + + rc = write_word32(info, wp, data); + if (rc != 0) + return rc; + + wp += FLASH_WIDTH; cnt -= FLASH_WIDTH; - if (get_timer(start) > 990) { /* every second */ - putc ('.'); + if (get_timer(start) > 990) { /* every second */ + putc('.'); start = get_timer(0); } } - if (cnt == 0) { - return (0); - } + if (cnt == 0) + return 0; /* * handle unaligned tail bytes */ data = 0; - for (i=0, cp=wp; i<FLASH_WIDTH && cnt>0; ++i, ++cp) { + for (i = 0, cp = wp; i < FLASH_WIDTH && cnt > 0; ++i, ++cp) { data = (data << 8) | *src++; --cnt; } - for (; i<FLASH_WIDTH; ++i, ++cp) { - data = (data << 8) | (*(uchar *)cp); - } - return (write_word32(info, wp, data)); -} /* write_buff32() */ + for (; i < FLASH_WIDTH; ++i, ++cp) + data = (data << 8) | (*(uchar *) cp); + + return write_word32(info, wp, data); +} int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt) { - int retval; + int retval; - if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) - retval = write_buff8(info, src, addr, cnt); - else - retval = write_buff32(info, src, addr, cnt); + if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) + retval = write_buff8(info, src, addr, cnt); + else + retval = write_buff32(info, src, addr, cnt); - return retval; -} /* end write_buff() */ + return retval; +} -/*----------------------------------------------------------------------- +/* * Write a word to Flash, returns: * 0 - OK * 1 - write timeout @@ -724,217 +737,208 @@ int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt) static int write_word8(flash_info_t *info, ulong dest, ulong data) { - volatile uchar *addr2 = (uchar *)(info->start[0]); - volatile uchar *dest2 = (uchar *)dest; - volatile uchar *data2 = (uchar *)&data; - int flag; - int i, tcode, rcode = 0; - - /* Check if Flash is (sufficently) erased */ - if ((*((volatile uchar *)dest) & - (uchar)data) != (uchar)data) { - return (2); - } - - for (i=0; i < (4 / sizeof(uchar)); i++) { - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); + volatile uchar *addr2 = (uchar *) (info->start[0]); + volatile uchar *dest2 = (uchar *) dest; + volatile uchar *data2 = (uchar *) &data; + int flag; + int i, tcode, rcode = 0; - *(addr2 + 0x555) = (uchar)0xAA; - *(addr2 + 0x2aa) = (uchar)0x55; - *(addr2 + 0x555) = (uchar)0xA0; + /* Check if Flash is (sufficently) erased */ + if ((*((volatile uchar *)dest) & (uchar)data) != (uchar)data) + return 2; - dest2[i] = data2[i]; + for (i = 0; i < (4 / sizeof(uchar)); i++) { + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); - /* Wait for write to complete, up to 1ms */ - tcode = wait_for_DQ7((ulong)&dest2[i], data2[i], 1); + *(addr2 + 0x555) = (uchar) 0xAA; + *(addr2 + 0x2aa) = (uchar) 0x55; + *(addr2 + 0x555) = (uchar) 0xA0; - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); + dest2[i] = data2[i]; + + /* Wait for write to complete, up to 1ms */ + tcode = wait_for_DQ7((ulong) &dest2[i], data2[i], 1); - /* Make sure we didn't timeout */ - if (tcode) { - rcode = 1; + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + /* Make sure we didn't timeout */ + if (tcode) + rcode = 1; } - } - return rcode; -} /* end write_word8() */ + return rcode; +} static int write_word32(flash_info_t *info, ulong dest, ulong data) { - vu_long *addr = (vu_long *)dest; - ulong status; - ulong start; - int flag; + vu_long *addr = (vu_long *) dest; + ulong status; + ulong start; + int flag; + + /* Check if Flash is (sufficiently) erased */ + if ((*addr & data) != data) + return 2; - /* Check if Flash is (sufficiently) erased */ - if ((*addr & data) != data) { - return (2); - } - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); - *addr = 0x00400040; /* write setup */ - *addr = data; + *addr = 0x00400040; /* write setup */ + *addr = data; - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); - start = get_timer (0); + start = get_timer(0); - while (((status = *addr) & 0x00800080) != 0x00800080) { - WATCHDOG_RESET(); - if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { - *addr = 0x00FF00FF; /* restore read mode */ - return (1); + while (((status = *addr) & 0x00800080) != 0x00800080) { + WATCHDOG_RESET(); + if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { + *addr = 0x00FF00FF; /* restore read mode */ + return 1; + } } - } - *addr = 0x00FF00FF; /* restore read mode */ - - return (0); -} /* end write_word32() */ + *addr = 0x00FF00FF; /* restore read mode */ + return 0; +} static int _flash_protect(flash_info_t *info, long sector) { - int i; - int flag; - ulong status; - int rcode = 0; - volatile long *addr = (long *)sector; + int i; + int flag; + ulong status; + int rcode = 0; + volatile long *addr = (long *)sector; - switch(info->flash_id & FLASH_TYPEMASK) { + switch (info->flash_id & FLASH_TYPEMASK) { case FLASH_28F320J3A: case FLASH_28F640J3A: case FLASH_28F128J3A: - /* Disable interrupts which might cause Flash to timeout */ - flag = disable_interrupts(); + /* Disable interrupts which might cause Flash to timeout */ + flag = disable_interrupts(); + + /* Issue command */ + *addr = 0x00500050L; /* Clear the status register */ + *addr = 0x00600060L; /* Set lock bit setup */ + *addr = 0x00010001L; /* Set lock bit confirm */ + + /* Wait for command completion */ + for (i = 0; i < 10; i++) { /* 75us timeout, wait 100us */ + udelay(10); + if ((*addr & 0x00800080L) == 0x00800080L) + break; + } - /* Issue command */ - *addr = 0x00500050L; /* Clear the status register */ - *addr = 0x00600060L; /* Set lock bit setup */ - *addr = 0x00010001L; /* Set lock bit confirm */ + /* Not successful? */ + status = *addr; + if (status != 0x00800080L) { + printf("Protect %x sector failed: %x\n", + (uint) sector, (uint) status); + rcode = 1; + } - /* Wait for command completion */ - for (i = 0; i < 10; i++) { /* 75us timeout, wait 100us */ - udelay(10); - if ((*addr & 0x00800080L) == 0x00800080L) - break; - } - - /* Not successful? */ - status = *addr; - if (status != 0x00800080L) { - printf("Protect %x sector failed: %x\n", - (uint)sector, (uint)status); - rcode = 1; - } - - /* Restore read mode */ - *addr = 0x00ff00ffL; - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); + /* Restore read mode */ + *addr = 0x00ff00ffL; + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); - break; - case FLASH_AM040: /* No soft sector protection */ - break; - } + break; + case FLASH_AM040: /* No soft sector protection */ + break; + } - /* Turn protection on for this sector */ - for (i = 0; i < info->sector_count; i++) { - if (info->start[i] == sector) { - info->protect[i] = 1; - break; + /* Turn protection on for this sector */ + for (i = 0; i < info->sector_count; i++) { + if (info->start[i] == sector) { + info->protect[i] = 1; + break; + } } - } - return rcode; -} /* end _flash_protect() */ + return rcode; +} static int _flash_unprotect(flash_info_t *info, long sector) { - int i; - int flag; - ulong status; - int rcode = 0; - volatile long *addr = (long *)sector; + int i; + int flag; + ulong status; + int rcode = 0; + volatile long *addr = (long *) sector; - switch(info->flash_id & FLASH_TYPEMASK) { + switch (info->flash_id & FLASH_TYPEMASK) { case FLASH_28F320J3A: case FLASH_28F640J3A: case FLASH_28F128J3A: - /* Disable interrupts which might cause Flash to timeout */ - flag = disable_interrupts(); - - *addr = 0x00500050L; /* Clear the status register */ - *addr = 0x00600060L; /* Clear lock bit setup */ - *addr = 0x00D000D0L; /* Clear lock bit confirm */ - - /* Wait for command completion */ - for (i = 0; i < 80 ; i++) { /* 700ms timeout, wait 800 */ - udelay(10000); /* Delay 10ms */ - if ((*addr & 0x00800080L) == 0x00800080L) - break; - } - - /* Not successful? */ - status = *addr; - if (status != 0x00800080L) { - printf("Un-protect %x sector failed: %x\n", - (uint)sector, (uint)status); - *addr = 0x00ff00ffL; - rcode = 1; - } + /* Disable interrupts which might cause Flash to timeout */ + flag = disable_interrupts(); + + *addr = 0x00500050L; /* Clear the status register */ + *addr = 0x00600060L; /* Clear lock bit setup */ + *addr = 0x00D000D0L; /* Clear lock bit confirm */ + + /* Wait for command completion */ + for (i = 0; i < 80; i++) { /* 700ms timeout, wait 800 */ + udelay(10000); /* Delay 10ms */ + if ((*addr & 0x00800080L) == 0x00800080L) + break; + } - /* restore read mode */ - *addr = 0x00ff00ffL; + /* Not successful? */ + status = *addr; + if (status != 0x00800080L) { + printf("Un-protect %x sector failed: %x\n", + (uint) sector, (uint) status); + *addr = 0x00ff00ffL; + rcode = 1; + } - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); + /* restore read mode */ + *addr = 0x00ff00ffL; - break; - case FLASH_AM040: /* No soft sector protection */ - break; - } + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); - /* - * Fix Intel's little red wagon. Reprotect - * sectors that were protected before we undid - * protection on a specific sector. - */ - for (i = 0; i < info->sector_count; i++) { - if (info->start[i] != sector) { - if (info->protect[i]) { - if (_flash_protect(info, info->start[i])) - rcode = 1; - } + break; + case FLASH_AM040: /* No soft sector protection */ + break; } - else /* Turn protection off for this sector */ - info->protect[i] = 0; - } - return rcode; -} /* end _flash_unprotect() */ + /* + * Fix Intel's little red wagon. Reprotect + * sectors that were protected before we undid + * protection on a specific sector. + */ + for (i = 0; i < info->sector_count; i++) { + if (info->start[i] != sector) { + if (info->protect[i]) { + if (_flash_protect(info, info->start[i])) + rcode = 1; + } + } else /* Turn protection off for this sector */ + info->protect[i] = 0; + } + return rcode; +} int flash_real_protect(flash_info_t *info, long sector, int prot) { - int rcode; + int rcode; - if (prot) - rcode = _flash_protect(info, info->start[sector]); - else - rcode = _flash_unprotect(info, info->start[sector]); - - return rcode; -} /* end flash_real_protect() */ + if (prot) + rcode = _flash_protect(info, info->start[sector]); + else + rcode = _flash_unprotect(info, info->start[sector]); -/*----------------------------------------------------------------------- - */ + return rcode; +} |