diff options
| -rw-r--r-- | src/flash/str9x.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/flash/str9x.c b/src/flash/str9x.c index 96cad399..fbae6c68 100644 --- a/src/flash/str9x.c +++ b/src/flash/str9x.c @@ -236,18 +236,31 @@ int str9x_erase(struct flash_bank_s *bank, int first, int last) int i; u32 adr; u8 status; + u8 erase_cmd; if (bank->target->state != TARGET_HALTED) { return ERROR_TARGET_NOT_HALTED; } + /* Check if we erase whole bank */ + if ((first == 0) && (last == (bank->num_sectors - 1))) + { + /* Optimize to run erase bank command instead of sector */ + erase_cmd = 0x80; + } + else + { + /* Erase sector command */ + erase_cmd = 0x20; + } + for (i = first; i <= last; i++) { adr = bank->base + bank->sectors[i].offset; /* erase sectors */ - target_write_u16(target, adr, 0x20); + target_write_u16(target, adr, erase_cmd); target_write_u16(target, adr, 0xD0); /* get status */ @@ -271,6 +284,10 @@ int str9x_erase(struct flash_bank_s *bank, int first, int last) LOG_ERROR("error erasing flash bank, status: 0x%x", status); return ERROR_FLASH_OPERATION_FAILED; } + + /* If we ran erase bank command, we are finished */ + if (erase_cmd == 0x80) + break; } for (i = first; i <= last; i++) |