diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/flash/nor/kinetis.c | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/src/flash/nor/kinetis.c b/src/flash/nor/kinetis.c index 494c266c..fe18451c 100644 --- a/src/flash/nor/kinetis.c +++ b/src/flash/nor/kinetis.c @@ -365,23 +365,27 @@ static int kinetis_write(struct flash_bank *bank, uint8_t *buffer, /* program section command */ if (fallback == 0) { - unsigned prog_section_bytes = kinfo->sector_size >> 8; - for (i = 0; i < count; i += kinfo->sector_size) { - /* - * The largest possible Kinetis "section" is - * 16 bytes. A full Kinetis sector is always - * 256 "section"s. - */ + /* + * Kinetis uses different terms for the granularity of + * sector writes, e.g. "phrase" or "128 bits". We use + * the generic term "chunk". The largest possible + * Kinetis "chunk" is 16 bytes (128 bits). + */ + unsigned prog_section_chunk_bytes = kinfo->sector_size >> 8; + /* assume the NVM sector size is half the FlexRAM size */ + unsigned prog_size_bytes = MIN(kinfo->sector_size, + kinetis_flash_params[kinfo->granularity].nvm_sector_size_bytes); + for (i = 0; i < count; i += prog_size_bytes) { uint8_t residual_buffer[16]; uint8_t ftfx_fstat; - uint32_t section_count = 256; + uint32_t section_count = prog_size_bytes / prog_section_chunk_bytes; uint32_t residual_wc = 0; /* * Assume the word count covers an entire * sector. */ - wc = kinfo->sector_size / 4; + wc = prog_size_bytes / 4; /* * If bytes to be programmed are less than the @@ -390,21 +394,21 @@ static int kinetis_write(struct flash_bank *bank, uint8_t *buffer, * residual buffer so that a full "section" * may always be programmed. */ - if ((count - i) < kinfo->sector_size) { + if ((count - i) < prog_size_bytes) { /* number of bytes to program beyond full section */ - unsigned residual_bc = (count-i) % prog_section_bytes; + unsigned residual_bc = (count-i) % prog_section_chunk_bytes; /* number of complete words to copy directly from buffer */ wc = (count - i) / 4; /* number of total sections to write, including residual */ - section_count = DIV_ROUND_UP((count-i), prog_section_bytes); + section_count = DIV_ROUND_UP((count-i), prog_section_chunk_bytes); /* any residual bytes delivers a whole residual section */ - residual_wc = (residual_bc ? prog_section_bytes : 0)/4; + residual_wc = (residual_bc ? prog_section_chunk_bytes : 0)/4; /* clear residual buffer then populate residual bytes */ - (void) memset(residual_buffer, 0xff, prog_section_bytes); + (void) memset(residual_buffer, 0xff, prog_section_chunk_bytes); (void) memcpy(residual_buffer, &buffer[i+4*wc], residual_bc); } @@ -770,7 +774,7 @@ static int kinetis_blank_check(struct flash_bank *bank) for (i = 0; i < bank->num_sectors; i++) { /* normal margin */ result = kinetis_ftfx_command(bank, FTFx_CMD_SECTSTAT, bank->base + bank->sectors[i].offset, - 0, 0, 0, 1, 0, 0, 0, 0, &ftfx_fstat); + 1, 0, 0, 0, 0, 0, 0, 0, &ftfx_fstat); if (result == ERROR_OK) { bank->sectors[i].is_erased = !(ftfx_fstat & 0x01); |