diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/flash/nor/em357.c | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/src/flash/nor/em357.c b/src/flash/nor/em357.c index cbb71fc0..664306ca 100644 --- a/src/flash/nor/em357.c +++ b/src/flash/nor/em357.c @@ -358,6 +358,9 @@ static int em357_erase(struct flash_bank *bank, int first, int last) if ((first == 0) && (last == (bank->num_sectors - 1))) return em357_mass_erase(bank); + /* Enable FPEC clock */ + target_write_u32(target, EM357_FPEC_CLK, 0x00000001); + /* unlock flash registers */ int retval = target_write_u32(target, EM357_FLASH_KEYR, KEY1); if (retval != ERROR_OK) @@ -519,7 +522,6 @@ static int em357_write_block(struct flash_bank *bank, uint8_t *buffer, return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } } - ; armv7m_info.common_magic = ARMV7M_COMMON_MAGIC; armv7m_info.core_mode = ARM_MODE_THREAD; @@ -609,6 +611,8 @@ static int em357_write(struct flash_bank *bank, uint8_t *buffer, if (retval != ERROR_OK) return retval; + target_write_u32(target, EM357_FPEC_CLK, 0x00000001); + /* multiple half words (2-byte) to be programmed? */ if (words_remaining > 0) { /* try using a block write */ @@ -680,14 +684,40 @@ static int em357_probe(struct flash_bank *bank) em357_info->probed = 0; + switch (bank->size) { + case 0x10000: + /* 64k -- 64 1k pages */ + num_pages = 64; + page_size = 1024; + break; + case 0x20000: + /* 128k -- 128 1k pages */ + num_pages = 128; + page_size = 1024; + break; + case 0x30000: + /* 192k -- 96 2k pages */ + num_pages = 96; + page_size = 2048; + break; + case 0x40000: + /* 256k -- 128 2k pages */ + num_pages = 128; + page_size = 2048; + break; + default: + LOG_WARNING("No size specified for em357 flash driver, assuming 192k!"); + num_pages = 96; + page_size = 2048; + break; + } + /* Enable FPEC CLK */ int retval = target_write_u32(target, EM357_FPEC_CLK, 0x00000001); if (retval != ERROR_OK) return retval; - page_size = 2048; em357_info->ppage_size = 4; - num_pages = 96; LOG_INFO("flash size = %dkbytes", num_pages*page_size/1024); @@ -813,6 +843,9 @@ static int em357_mass_erase(struct flash_bank *bank) return ERROR_TARGET_NOT_HALTED; } + /* Make sure the flash clock is on */ + target_write_u32(target, EM357_FPEC_CLK, 0x00000001); + /* unlock option flash registers */ int retval = target_write_u32(target, EM357_FLASH_KEYR, KEY1); if (retval != ERROR_OK) |