diff options
Diffstat (limited to 'src/flash/nor/at91samd.c')
| -rw-r--r-- | src/flash/nor/at91samd.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/src/flash/nor/at91samd.c b/src/flash/nor/at91samd.c index c0be3f7d..ee9e9cbb 100644 --- a/src/flash/nor/at91samd.c +++ b/src/flash/nor/at91samd.c @@ -360,16 +360,23 @@ static int samd_erase(struct flash_bank *bank, int first, int last) /* For each sector to be erased */ for (int s = first; s <= last; s++) { - /* For each row in that sector */ - for (int r = s * rows_in_sector; r < (s + 1) * rows_in_sector; r++) { - res = samd_erase_row(bank, r * chip->page_size * 4); - if (res != ERROR_OK) { - LOG_ERROR("SAMD: failed to erase sector %d", s); - return res; - } + if (bank->sectors[s].is_protected) { + LOG_ERROR("SAMD: failed to erase sector %d. That sector is write-protected", s); + return ERROR_FLASH_OPERATION_FAILED; } - bank->sectors[s].is_erased = 1; + if (!bank->sectors[s].is_erased) { + /* For each row in that sector */ + for (int r = s * rows_in_sector; r < (s + 1) * rows_in_sector; r++) { + res = samd_erase_row(bank, r * chip->page_size * 4); + if (res != ERROR_OK) { + LOG_ERROR("SAMD: failed to erase sector %d", s); + return res; + } + } + + bank->sectors[s].is_erased = 1; + } } return ERROR_OK; |