diff options
Diffstat (limited to 'src/flash/nor')
| -rw-r--r-- | src/flash/nor/cfi.c | 455 | ||||
| -rw-r--r-- | src/flash/nor/cfi.h | 4 |
2 files changed, 341 insertions, 118 deletions
diff --git a/src/flash/nor/cfi.c b/src/flash/nor/cfi.c index f0ab332f..f911bb70 100644 --- a/src/flash/nor/cfi.c +++ b/src/flash/nor/cfi.c @@ -146,37 +146,45 @@ static int cfi_send_command(struct flash_bank *bank, uint8_t cmd, uint32_t addre * flash banks are expected to be made of similar chips * the query result should be the same for all */ -static uint8_t cfi_query_u8(struct flash_bank *bank, int sector, uint32_t offset) +static int cfi_query_u8(struct flash_bank *bank, int sector, uint32_t offset, uint8_t *val) { struct target *target = bank->target; uint8_t data[CFI_MAX_BUS_WIDTH]; - target_read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 1, data); + int retval; + retval = target_read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 1, data); + if (retval != ERROR_OK) + return retval; if (bank->target->endianness == TARGET_LITTLE_ENDIAN) - return data[0]; + *val = data[0]; else - return data[bank->bus_width - 1]; + *val = data[bank->bus_width - 1]; + + return ERROR_OK; } /* read unsigned 8-bit value from the bank * in case of a bank made of multiple chips, * the individual values are ORed */ -static uint8_t cfi_get_u8(struct flash_bank *bank, int sector, uint32_t offset) +static int cfi_get_u8(struct flash_bank *bank, int sector, uint32_t offset, uint8_t *val) { struct target *target = bank->target; uint8_t data[CFI_MAX_BUS_WIDTH]; int i; - target_read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 1, data); + int retval; + retval = target_read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 1, data); + if (retval != ERROR_OK) + return retval; if (bank->target->endianness == TARGET_LITTLE_ENDIAN) { for (i = 0; i < bank->bus_width / bank->chip_width; i++) data[0] |= data[i]; - return data[0]; + *val = data[0]; } else { @@ -184,53 +192,75 @@ static uint8_t cfi_get_u8(struct flash_bank *bank, int sector, uint32_t offset) for (i = 0; i < bank->bus_width / bank->chip_width; i++) value |= data[bank->bus_width - 1 - i]; - return value; + *val = value; } + return ERROR_OK; } -static uint16_t cfi_query_u16(struct flash_bank *bank, int sector, uint32_t offset) +static int cfi_query_u16(struct flash_bank *bank, int sector, uint32_t offset, uint16_t *val) { struct target *target = bank->target; struct cfi_flash_bank *cfi_info = bank->driver_priv; uint8_t data[CFI_MAX_BUS_WIDTH * 2]; + int retval; if (cfi_info->x16_as_x8) { uint8_t i; for (i = 0;i < 2;i++) - target_read_memory(target, flash_address(bank, sector, offset + i), bank->bus_width, 1, + { + retval = target_read_memory(target, flash_address(bank, sector, offset + i), bank->bus_width, 1, &data[i*bank->bus_width]); + if (retval != ERROR_OK) + return retval; + } + } else + { + retval = target_read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 2, data); + if (retval != ERROR_OK) + return retval; } - else - target_read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 2, data); if (bank->target->endianness == TARGET_LITTLE_ENDIAN) - return data[0] | data[bank->bus_width] << 8; + *val = data[0] | data[bank->bus_width] << 8; else - return data[bank->bus_width - 1] | data[(2 * bank->bus_width) - 1] << 8; + *val = data[bank->bus_width - 1] | data[(2 * bank->bus_width) - 1] << 8; + + return ERROR_OK; } -static uint32_t cfi_query_u32(struct flash_bank *bank, int sector, uint32_t offset) +static int cfi_query_u32(struct flash_bank *bank, int sector, uint32_t offset, uint32_t *val) { struct target *target = bank->target; struct cfi_flash_bank *cfi_info = bank->driver_priv; uint8_t data[CFI_MAX_BUS_WIDTH * 4]; + int retval; if (cfi_info->x16_as_x8) { uint8_t i; for (i = 0;i < 4;i++) - target_read_memory(target, flash_address(bank, sector, offset + i), bank->bus_width, 1, + { + retval = target_read_memory(target, flash_address(bank, sector, offset + i), bank->bus_width, 1, &data[i*bank->bus_width]); + if (retval != ERROR_OK) + return retval; + } } else - target_read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 4, data); + { + retval = target_read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 4, data); + if (retval != ERROR_OK) + return retval; + } if (bank->target->endianness == TARGET_LITTLE_ENDIAN) - return data[0] | data[bank->bus_width] << 8 | data[bank->bus_width * 2] << 16 | data[bank->bus_width * 3] << 24; + *val = data[0] | data[bank->bus_width] << 8 | data[bank->bus_width * 2] << 16 | data[bank->bus_width * 3] << 24; else - return data[bank->bus_width - 1] | data[(2* bank->bus_width) - 1] << 8 | + *val = data[bank->bus_width - 1] | data[(2* bank->bus_width) - 1] << 8 | data[(3 * bank->bus_width) - 1] << 16 | data[(4 * bank->bus_width) - 1] << 24; + + return ERROR_OK; } static int cfi_reset(struct flash_bank *bank) @@ -275,13 +305,27 @@ static void cfi_intel_clear_status_register(struct flash_bank *bank) cfi_send_command(bank, 0x50, flash_address(bank, 0, 0x0)); } -static uint8_t cfi_intel_wait_status_busy(struct flash_bank *bank, int timeout) +static int cfi_intel_wait_status_busy(struct flash_bank *bank, int timeout, uint8_t *val) { uint8_t status; - while ((!((status = cfi_get_u8(bank, 0, 0x0)) & 0x80)) && (timeout-- > 0)) + int retval = ERROR_OK; + + for (;;) { - LOG_DEBUG("status: 0x%x", status); + if (timeout-- < 0) + { + LOG_ERROR("timeout while waiting for WSM to become ready"); + return ERROR_FAIL; + } + + retval = cfi_get_u8(bank, 0, 0x0, &status); + if (retval != ERROR_OK) + return retval; + + if (status & 0x80) + break; + alive_sleep(1); } @@ -290,11 +334,7 @@ static uint8_t cfi_intel_wait_status_busy(struct flash_bank *bank, int timeout) LOG_DEBUG("status: 0x%x", status); - if ((status & 0x80) != 0x80) - { - LOG_ERROR("timeout while waiting for WSM to become ready"); - } - else if (status != 0x80) + if (status != 0x80) { LOG_ERROR("status register: 0x%x", status); if (status & 0x2) @@ -311,24 +351,38 @@ static uint8_t cfi_intel_wait_status_busy(struct flash_bank *bank, int timeout) LOG_ERROR("Block Erase Suspended"); cfi_intel_clear_status_register(bank); + + retval = ERROR_FAIL; } - return status; + *val = status; + return retval; } static int cfi_spansion_wait_status_busy(struct flash_bank *bank, int timeout) { uint8_t status, oldstatus; struct cfi_flash_bank *cfi_info = bank->driver_priv; + int retval; - oldstatus = cfi_get_u8(bank, 0, 0x0); + retval = cfi_get_u8(bank, 0, 0x0, &oldstatus); + if (retval != ERROR_OK) + return retval; do { - status = cfi_get_u8(bank, 0, 0x0); + retval = cfi_get_u8(bank, 0, 0x0, &status); + + if (retval != ERROR_OK) + return retval; + if ((status ^ oldstatus) & 0x40) { if (status & cfi_info->status_poll_mask & 0x20) { - oldstatus = cfi_get_u8(bank, 0, 0x0); - status = cfi_get_u8(bank, 0, 0x0); + retval = cfi_get_u8(bank, 0, 0x0, &oldstatus); + if (retval != ERROR_OK) + return retval; + retval = cfi_get_u8(bank, 0, 0x0, &status); + if (retval != ERROR_OK) + return retval; if ((status ^ oldstatus) & 0x40) { LOG_ERROR("dq5 timeout, status: 0x%x", status); return(ERROR_FLASH_OPERATION_FAILED); @@ -368,9 +422,15 @@ static int cfi_read_intel_pri_ext(struct flash_bank *bank) } cfi_info->pri_ext = pri_ext; - pri_ext->pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0); - pri_ext->pri[1] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1); - pri_ext->pri[2] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2); + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0, &pri_ext->pri[0]); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1, &pri_ext->pri[1]); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2, &pri_ext->pri[2]); + if (retval != ERROR_OK) + return retval; if ((pri_ext->pri[0] != 'P') || (pri_ext->pri[1] != 'R') || (pri_ext->pri[2] != 'I')) { @@ -382,36 +442,58 @@ static int cfi_read_intel_pri_ext(struct flash_bank *bank) return ERROR_FLASH_BANK_INVALID; } - pri_ext->major_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3); - pri_ext->minor_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4); + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3, &pri_ext->major_version); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4, &pri_ext->minor_version); + if (retval != ERROR_OK) + return retval; LOG_DEBUG("pri: '%c%c%c', version: %c.%c", pri_ext->pri[0], pri_ext->pri[1], pri_ext->pri[2], pri_ext->major_version, pri_ext->minor_version); - pri_ext->feature_support = cfi_query_u32(bank, 0, cfi_info->pri_addr + 5); - pri_ext->suspend_cmd_support = cfi_query_u8(bank, 0, cfi_info->pri_addr + 9); - pri_ext->blk_status_reg_mask = cfi_query_u16(bank, 0, cfi_info->pri_addr + 0xa); + retval = cfi_query_u32(bank, 0, cfi_info->pri_addr + 5, &pri_ext->feature_support); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 9, &pri_ext->suspend_cmd_support); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u16(bank, 0, cfi_info->pri_addr + 0xa, &pri_ext->blk_status_reg_mask); + if (retval != ERROR_OK) + return retval; LOG_DEBUG("feature_support: 0x%" PRIx32 ", suspend_cmd_support: 0x%x, blk_status_reg_mask: 0x%x", pri_ext->feature_support, pri_ext->suspend_cmd_support, pri_ext->blk_status_reg_mask); - pri_ext->vcc_optimal = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xc); - pri_ext->vpp_optimal = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xd); + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xc, &pri_ext->vcc_optimal); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xd, &pri_ext->vpp_optimal); + if (retval != ERROR_OK) + return retval; LOG_DEBUG("Vcc opt: %x.%x, Vpp opt: %u.%x", (pri_ext->vcc_optimal & 0xf0) >> 4, pri_ext->vcc_optimal & 0x0f, (pri_ext->vpp_optimal & 0xf0) >> 4, pri_ext->vpp_optimal & 0x0f); - pri_ext->num_protection_fields = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xe); + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0xe, &pri_ext->num_protection_fields); + if (retval != ERROR_OK) + return retval; if (pri_ext->num_protection_fields != 1) { LOG_WARNING("expected one protection register field, but found %i", pri_ext->num_protection_fields); } - pri_ext->prot_reg_addr = cfi_query_u16(bank, 0, cfi_info->pri_addr + 0xf); - pri_ext->fact_prot_reg_size = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0x11); - pri_ext->user_prot_reg_size = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0x12); + retval = cfi_query_u16(bank, 0, cfi_info->pri_addr + 0xf, &pri_ext->prot_reg_addr); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0x11, &pri_ext->fact_prot_reg_size); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0x12, &pri_ext->user_prot_reg_size); + if (retval != ERROR_OK) + return retval; LOG_DEBUG("protection_fields: %i, prot_reg_addr: 0x%x, factory pre-programmed: %i, user programmable: %i", pri_ext->num_protection_fields, pri_ext->prot_reg_addr, 1 << pri_ext->fact_prot_reg_size, 1 << pri_ext->user_prot_reg_size); @@ -435,9 +517,15 @@ static int cfi_read_spansion_pri_ext(struct flash_bank *bank) } cfi_info->pri_ext = pri_ext; - pri_ext->pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0); - pri_ext->pri[1] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1); - pri_ext->pri[2] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2); + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0, &pri_ext->pri[0]); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1, &pri_ext->pri[1]); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2, &pri_ext->pri[2]); + if (retval != ERROR_OK) + return retval; if ((pri_ext->pri[0] != 'P') || (pri_ext->pri[1] != 'R') || (pri_ext->pri[2] != 'I')) { @@ -449,22 +537,48 @@ static int cfi_read_spansion_pri_ext(struct flash_bank *bank) return ERROR_FLASH_BANK_INVALID; } - pri_ext->major_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3); - pri_ext->minor_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4); + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3, &pri_ext->major_version); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4, &pri_ext->minor_version); + if (retval != ERROR_OK) + return retval; LOG_DEBUG("pri: '%c%c%c', version: %c.%c", pri_ext->pri[0], pri_ext->pri[1], pri_ext->pri[2], pri_ext->major_version, pri_ext->minor_version); - pri_ext->SiliconRevision = cfi_query_u8(bank, 0, cfi_info->pri_addr + 5); - pri_ext->EraseSuspend = cfi_query_u8(bank, 0, cfi_info->pri_addr + 6); - pri_ext->BlkProt = cfi_query_u8(bank, 0, cfi_info->pri_addr + 7); - pri_ext->TmpBlkUnprotect = cfi_query_u8(bank, 0, cfi_info->pri_addr + 8); - pri_ext->BlkProtUnprot = cfi_query_u8(bank, 0, cfi_info->pri_addr + 9); - pri_ext->SimultaneousOps = cfi_query_u8(bank, 0, cfi_info->pri_addr + 10); - pri_ext->BurstMode = cfi_query_u8(bank, 0, cfi_info->pri_addr + 11); - pri_ext->PageMode = cfi_query_u8(bank, 0, cfi_info->pri_addr + 12); - pri_ext->VppMin = cfi_query_u8(bank, 0, cfi_info->pri_addr + 13); - pri_ext->VppMax = cfi_query_u8(bank, 0, cfi_info->pri_addr + 14); - pri_ext->TopBottom = cfi_query_u8(bank, 0, cfi_info->pri_addr + 15); + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 5, &pri_ext->SiliconRevision); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 6, &pri_ext->EraseSuspend); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 7, &pri_ext->BlkProt); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 8, &pri_ext->TmpBlkUnprotect); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 9, &pri_ext->BlkProtUnprot); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 10, &pri_ext->SimultaneousOps); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 11, &pri_ext->BurstMode); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 12, &pri_ext->PageMode); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 13, &pri_ext->VppMin); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 14, &pri_ext->VppMax); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 15, &pri_ext->TopBottom); + if (retval != ERROR_OK) + return retval; LOG_DEBUG("Silicon Revision: 0x%x, Erase Suspend: 0x%x, Block protect: 0x%x", pri_ext->SiliconRevision, pri_ext->EraseSuspend, pri_ext->BlkProt); @@ -515,9 +629,15 @@ static int cfi_read_atmel_pri_ext(struct flash_bank *bank) cfi_info->pri_ext = pri_ext; - atmel_pri_ext.pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0); - atmel_pri_ext.pri[1] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1); - atmel_pri_ext.pri[2] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2); + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0, &atmel_pri_ext.pri[0]); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 1, &atmel_pri_ext.pri[1]); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 2, &atmel_pri_ext.pri[2]); + if (retval != ERROR_OK) + return retval; if ((atmel_pri_ext.pri[0] != 'P') || (atmel_pri_ext.pri[1] != 'R') || (atmel_pri_ext.pri[2] != 'I')) { @@ -533,18 +653,30 @@ static int cfi_read_atmel_pri_ext(struct flash_bank *bank) pri_ext->pri[1] = atmel_pri_ext.pri[1]; pri_ext->pri[2] = atmel_pri_ext.pri[2]; - atmel_pri_ext.major_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3); - atmel_pri_ext.minor_version = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4); + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 3, &atmel_pri_ext.major_version); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 4, &atmel_pri_ext.minor_version); + if (retval != ERROR_OK) + return retval; LOG_DEBUG("pri: '%c%c%c', version: %c.%c", atmel_pri_ext.pri[0], atmel_pri_ext.pri[1], atmel_pri_ext.pri[2], atmel_pri_ext.major_version, atmel_pri_ext.minor_version); pri_ext->major_version = atmel_pri_ext.major_version; pri_ext->minor_version = atmel_pri_ext.minor_version; - atmel_pri_ext.features = cfi_query_u8(bank, 0, cfi_info->pri_addr + 5); - atmel_pri_ext.bottom_boot = cfi_query_u8(bank, 0, cfi_info->pri_addr + 6); - atmel_pri_ext.burst_mode = cfi_query_u8(bank, 0, cfi_info->pri_addr + 7); - atmel_pri_ext.page_mode = cfi_query_u8(bank, 0, cfi_info->pri_addr + 8); + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 5, &atmel_pri_ext.features); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 6, &atmel_pri_ext.bottom_boot); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 7, &atmel_pri_ext.burst_mode); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, cfi_info->pri_addr + 8, &atmel_pri_ext.page_mode); + if (retval != ERROR_OK) + return retval; LOG_DEBUG("features: 0x%2.2x, bottom_boot: 0x%2.2x, burst_mode: 0x%2.2x, page_mode: 0x%2.2x", atmel_pri_ext.features, atmel_pri_ext.bottom_boot, atmel_pri_ext.burst_mode, atmel_pri_ext.page_mode); @@ -697,7 +829,7 @@ FLASH_BANK_COMMAND_HANDLER(cfi_flash_bank_command) cfi_info->write_algorithm = NULL; /* bank wasn't probed yet */ - cfi_info->qry[0] = -1; + cfi_info->qry[0] = 0xff; return ERROR_OK; } @@ -722,7 +854,12 @@ static int cfi_intel_erase(struct flash_bank *bank, int first, int last) return retval; } - if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->block_erase_timeout_typ)) == 0x80) + uint8_t status; + retval = cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->block_erase_timeout_typ), &status); + if (retval != ERROR_OK) + return retval; + + if (status == 0x80) bank->sectors[i].is_erased = 1; else { @@ -873,7 +1010,10 @@ static int cfi_intel_protect(struct flash_bank *bank, int set, int first, int la if (!(pri_ext->feature_support & 0x20)) { /* Clear lock bits operation may take up to 1.4s */ - cfi_intel_wait_status_busy(bank, 1400); + uint8_t status; + retval = cfi_intel_wait_status_busy(bank, 1400, &status); + if (retval != ERROR_OK) + return retval; } else { @@ -883,7 +1023,9 @@ static int cfi_intel_protect(struct flash_bank *bank, int set, int first, int la { return retval; } - block_status = cfi_get_u8(bank, i, 0x2); + retval = cfi_get_u8(bank, i, 0x2, &block_status); + if (retval != ERROR_OK) + return retval; if ((block_status & 0x1) != set) { @@ -892,7 +1034,10 @@ static int cfi_intel_protect(struct flash_bank *bank, int set, int first, int la { return retval; } - cfi_intel_wait_status_busy(bank, 10); + uint8_t status; + retval = cfi_intel_wait_status_busy(bank, 10, &status); + if (retval != ERROR_OK) + return retval; if (retry > 10) return ERROR_FLASH_OPERATION_FAILED; @@ -937,7 +1082,10 @@ static int cfi_intel_protect(struct flash_bank *bank, int set, int first, int la return retval; } - cfi_intel_wait_status_busy(bank, 100); + uint8_t status; + retval = cfi_intel_wait_status_busy(bank, 100, &status); + if (retval != ERROR_OK) + return retval; } } } @@ -1223,7 +1371,8 @@ static int cfi_intel_write_block(struct flash_bank *bank, uint8_t *buffer, uint3 if (wsm_error) { /* read status register (outputs debug inforation) */ - cfi_intel_wait_status_busy(bank, 100); + uint8_t status; + cfi_intel_wait_status_busy(bank, 100, &status); cfi_intel_clear_status_register(bank); retval = ERROR_FLASH_OPERATION_FAILED; goto cleanup; @@ -1268,8 +1417,7 @@ static int cfi_spansion_write_block(struct flash_bank *bank, uint8_t *buffer, ui struct working_area *source; uint32_t buffer_size = 32768; uint32_t status; - int retval, retvaltemp; - int exit_code = ERROR_OK; + int retval = ERROR_OK; /* input parameters - */ /* R0 = source address */ @@ -1515,7 +1663,11 @@ static int cfi_spansion_write_block(struct flash_bank *bank, uint8_t *buffer, ui { uint32_t thisrun_count = (count > buffer_size) ? buffer_size : count; - retvaltemp = target_write_buffer(target, source->address, thisrun_count, buffer); + retval = target_write_buffer(target, source->address, thisrun_count, buffer); + if (retval != ERROR_OK) + { + break; + } buf_set_u32(reg_params[0].value, 0, 32, source->address); buf_set_u32(reg_params[1].value, 0, 32, address); @@ -1531,13 +1683,16 @@ static int cfi_spansion_write_block(struct flash_bank *bank, uint8_t *buffer, ui cfi_info->write_algorithm->address, cfi_info->write_algorithm->address + ((target_code_size) - 4), 10000, &armv4_5_info); + if (retval != ERROR_OK) + { + break; + } status = buf_get_u32(reg_params[5].value, 0, 32); - - if ((retval != ERROR_OK) || (retvaltemp != ERROR_OK) || status != 0x80) + if (status != 0x80) { - LOG_DEBUG("status: 0x%" PRIx32 , status); - exit_code = ERROR_FLASH_OPERATION_FAILED; + LOG_ERROR("flash write block failed status: 0x%" PRIx32 , status); + retval = ERROR_FLASH_OPERATION_FAILED; break; } @@ -1559,7 +1714,7 @@ static int cfi_spansion_write_block(struct flash_bank *bank, uint8_t *buffer, ui destroy_reg_param(®_params[8]); destroy_reg_param(®_params[9]); - return exit_code; + return retval; } static int cfi_intel_write_word(struct flash_bank *bank, uint8_t *word, uint32_t address) @@ -1579,7 +1734,9 @@ static int cfi_intel_write_word(struct flash_bank *bank, uint8_t *word, uint32_t return retval; } - if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->word_write_timeout_max)) != 0x80) + uint8_t status; + retval = cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->word_write_timeout_max), &status); + if (retval != 0x80) { if ((retval = cfi_send_command(bank, 0xff, flash_address(bank, 0, 0x0))) != ERROR_OK) { @@ -1629,7 +1786,11 @@ static int cfi_intel_write_words(struct flash_bank *bank, uint8_t *word, uint32_ { return retval; } - if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->buf_write_timeout_max)) != 0x80) + uint8_t status; + retval = cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->buf_write_timeout_max), &status); + if (retval != ERROR_OK) + return retval; + if (status != 0x80) { if ((retval = cfi_send_command(bank, 0xff, flash_address(bank, 0, 0x0))) != ERROR_OK) { @@ -1656,7 +1817,12 @@ static int cfi_intel_write_words(struct flash_bank *bank, uint8_t *word, uint32_ { return retval; } - if (cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->buf_write_timeout_max)) != 0x80) + + retval = cfi_intel_wait_status_busy(bank, 1000 * (1 << cfi_info->buf_write_timeout_max), &status); + if (retval != ERROR_OK) + return retval; + + if (status != 0x80) { if ((retval = cfi_send_command(bank, 0xff, flash_address(bank, 0, 0x0))) != ERROR_OK) { @@ -2098,9 +2264,15 @@ static int cfi_query_string(struct flash_bank *bank, int address) return retval; } - cfi_info->qry[0] = cfi_query_u8(bank, 0, 0x10); - cfi_info->qry[1] = cfi_query_u8(bank, 0, 0x11); - cfi_info->qry[2] = cfi_query_u8(bank, 0, 0x12); + retval = cfi_query_u8(bank, 0, 0x10, &cfi_info->qry[0]); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x11, &cfi_info->qry[1]); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x12, &cfi_info->qry[2]); + if (retval != ERROR_OK) + return retval; LOG_DEBUG("CFI qry returned: 0x%2.2x 0x%2.2x 0x%2.2x", cfi_info->qry[0], cfi_info->qry[1], cfi_info->qry[2]); @@ -2236,25 +2408,57 @@ static int cfi_probe(struct flash_bank *bank) if (retval != ERROR_OK) return retval; - cfi_info->pri_id = cfi_query_u16(bank, 0, 0x13); - cfi_info->pri_addr = cfi_query_u16(bank, 0, 0x15); - cfi_info->alt_id = cfi_query_u16(bank, 0, 0x17); - cfi_info->alt_addr = cfi_query_u16(bank, 0, 0x19); + retval = cfi_query_u16(bank, 0, 0x13, &cfi_info->pri_id); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u16(bank, 0, 0x15, &cfi_info->pri_addr); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u16(bank, 0, 0x17, &cfi_info->alt_id); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u16(bank, 0, 0x19, &cfi_info->alt_addr); + if (retval != ERROR_OK) + return retval; LOG_DEBUG("qry: '%c%c%c', pri_id: 0x%4.4x, pri_addr: 0x%4.4x, alt_id: 0x%4.4x, alt_addr: 0x%4.4x", cfi_info->qry[0], cfi_info->qry[1], cfi_info->qry[2], cfi_info->pri_id, cfi_info->pri_addr, cfi_info->alt_id, cfi_info->alt_addr); - cfi_info->vcc_min = cfi_query_u8(bank, 0, 0x1b); - cfi_info->vcc_max = cfi_query_u8(bank, 0, 0x1c); - cfi_info->vpp_min = cfi_query_u8(bank, 0, 0x1d); - cfi_info->vpp_max = cfi_query_u8(bank, 0, 0x1e); - cfi_info->word_write_timeout_typ = cfi_query_u8(bank, 0, 0x1f); - cfi_info->buf_write_timeout_typ = cfi_query_u8(bank, 0, 0x20); - cfi_info->block_erase_timeout_typ = cfi_query_u8(bank, 0, 0x21); - cfi_info->chip_erase_timeout_typ = cfi_query_u8(bank, 0, 0x22); - cfi_info->word_write_timeout_max = cfi_query_u8(bank, 0, 0x23); - cfi_info->buf_write_timeout_max = cfi_query_u8(bank, 0, 0x24); - cfi_info->block_erase_timeout_max = cfi_query_u8(bank, 0, 0x25); - cfi_info->chip_erase_timeout_max = cfi_query_u8(bank, 0, 0x26); + retval = cfi_query_u8(bank, 0, 0x1b, &cfi_info->vcc_min); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x1c, &cfi_info->vcc_max); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x1d, &cfi_info->vpp_min); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x1e, &cfi_info->vpp_max); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x1f, &cfi_info->word_write_timeout_typ); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x20, &cfi_info->buf_write_timeout_typ); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x21, &cfi_info->block_erase_timeout_typ); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x22, &cfi_info->chip_erase_timeout_typ); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x23, &cfi_info->word_write_timeout_max); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x24, &cfi_info->buf_write_timeout_max); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x25, &cfi_info->block_erase_timeout_max); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x26, &cfi_info->chip_erase_timeout_max); + if (retval != ERROR_OK) + return retval; LOG_DEBUG("Vcc min: %x.%x, Vcc max: %x.%x, Vpp min: %u.%x, Vpp max: %u.%x", (cfi_info->vcc_min & 0xf0) >> 4, cfi_info->vcc_min & 0x0f, @@ -2268,10 +2472,21 @@ static int cfi_probe(struct flash_bank *bank) (1 << cfi_info->block_erase_timeout_max) * (1 << cfi_info->block_erase_timeout_typ), (1 << cfi_info->chip_erase_timeout_max) * (1 << cfi_info->chip_erase_timeout_typ)); - cfi_info->dev_size = 1 << cfi_query_u8(bank, 0, 0x27); - cfi_info->interface_desc = cfi_query_u16(bank, 0, 0x28); - cfi_info->max_buf_write_size = cfi_query_u16(bank, 0, 0x2a); - cfi_info->num_erase_regions = cfi_query_u8(bank, 0, 0x2c); + uint8_t data; + retval = 1 << cfi_query_u8(bank, 0, 0x27, &data); + if (retval != ERROR_OK) + return retval; + cfi_info->dev_size = data; + + retval = cfi_query_u16(bank, 0, 0x28, &cfi_info->interface_desc); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u16(bank, 0, 0x2a, &cfi_info->max_buf_write_size); + if (retval != ERROR_OK) + return retval; + retval = cfi_query_u8(bank, 0, 0x2c, &cfi_info->num_erase_regions); + if (retval != ERROR_OK) + return retval; LOG_DEBUG("size: 0x%" PRIx32 ", interface desc: %i, max buffer write size: %x", cfi_info->dev_size, cfi_info->interface_desc, (1 << cfi_info->max_buf_write_size)); @@ -2280,7 +2495,9 @@ static int cfi_probe(struct flash_bank *bank) cfi_info->erase_region_info = malloc(4 * cfi_info->num_erase_regions); for (i = 0; i < cfi_info->num_erase_regions; i++) { - cfi_info->erase_region_info[i] = cfi_query_u32(bank, 0, 0x2d + (4 * i)); + retval = cfi_query_u32(bank, 0, 0x2d + (4 * i), &cfi_info->erase_region_info[i]); + if (retval != ERROR_OK) + return retval; LOG_DEBUG("erase region[%i]: %" PRIu32 " blocks of size 0x%" PRIx32 "", i, (cfi_info->erase_region_info[i] & 0xffff) + 1, @@ -2417,7 +2634,10 @@ static int cfi_intel_protect_check(struct flash_bank *bank) for (i = 0; i < bank->num_sectors; i++) { - uint8_t block_status = cfi_get_u8(bank, i, 0x2); + uint8_t block_status; + retval = cfi_get_u8(bank, i, 0x2, &block_status); + if (retval != ERROR_OK) + return retval; if (block_status & 1) bank->sectors[i].is_protected = 1; @@ -2452,7 +2672,10 @@ static int cfi_spansion_protect_check(struct flash_bank *bank) for (i = 0; i < bank->num_sectors; i++) { - uint8_t block_status = cfi_get_u8(bank, i, 0x2); + uint8_t block_status; + retval = cfi_get_u8(bank, i, 0x2, &block_status); + if (retval != ERROR_OK) + return retval; if (block_status & 1) bank->sectors[i].is_protected = 1; @@ -2498,7 +2721,7 @@ static int cfi_info(struct flash_bank *bank, char *buf, int buf_size) int printed; struct cfi_flash_bank *cfi_info = bank->driver_priv; - if (cfi_info->qry[0] == (char)-1) + if (cfi_info->qry[0] == 0xff) { printed = snprintf(buf, buf_size, "\ncfi flash bank not probed yet\n"); return ERROR_OK; diff --git a/src/flash/nor/cfi.h b/src/flash/nor/cfi.h index fa717dc8..e2ff808b 100644 --- a/src/flash/nor/cfi.h +++ b/src/flash/nor/cfi.h @@ -35,7 +35,7 @@ struct cfi_flash_bank uint16_t manufacturer; uint16_t device_id; - char qry[3]; + uint8_t qry[3]; /* identification string */ uint16_t pri_id; @@ -76,7 +76,7 @@ struct cfi_flash_bank */ struct cfi_intel_pri_ext { - char pri[3]; + uint8_t pri[3]; uint8_t major_version; uint8_t minor_version; uint32_t feature_support; |