uint32_t adr;
uint8_t status;
uint8_t erase_cmd;
+ int total_timeout;
if (bank->target->state != TARGET_HALTED)
{
return ERROR_TARGET_NOT_HALTED;
}
- /*A slower but stable way of erasing*/
- /* Erase sector command */
- erase_cmd = 0x20;
+ /* Check if we can erase whole bank */
+ if ((first == 0) && (last == (bank->num_sectors - 1)))
+ {
+ /* Optimize to run erase bank command instead of sector */
+ erase_cmd = 0x80;
+ /* Add timeout duration since erase bank takes more time */
+ total_timeout = 1000 * bank->num_sectors;
+ }
+ else
+ {
+ /* Erase sector command */
+ erase_cmd = 0x20;
+ total_timeout = 1000;
+ }
for (i = first; i <= last; i++)
{
int retval;
adr = bank->base + bank->sectors[i].offset;
- /* erase sectors */
+ /* erase sectors or block */
if ((retval = target_write_u16(target, adr, erase_cmd)) != ERROR_OK)
{
return retval;
}
int timeout;
- for (timeout = 0; timeout < 1000; timeout++) {
+ for (timeout = 0; timeout < total_timeout; timeout++)
+ {
if ((retval = target_read_u8(target, adr, &status)) != ERROR_OK)
{
return retval;
break;
alive_sleep(1);
}
- if (timeout == 1000)
+ if (timeout == total_timeout)
{
LOG_ERROR("erase timed out");
return ERROR_FAIL;
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++)
struct arm_algorithm armv4_5_info;
int retval = ERROR_OK;
+ /* see contib/loaders/flash/str9x.s for src */
+
static const uint32_t str9x_flash_write_code[] = {
/* write: */
0xe3c14003, /* bic r4, r1, #3 */
0xe2522001, /* subs r2, r2, #1 */
0x1affffed, /* bne write */
/* exit: */
- 0xeafffffe, /* b exit */
+ 0xe1200070, /* bkpt #0 */
};
/* flash write code */
if ((retval = target_run_algorithm(target, 0, NULL, 4, reg_params,
str9x_info->write_algorithm->address,
- str9x_info->write_algorithm->address + (sizeof(str9x_flash_write_code) - 4),
- 10000, &armv4_5_info)) != ERROR_OK)
+ 0, 10000, &armv4_5_info)) != ERROR_OK)
{
LOG_ERROR("error executing str9x flash write algorithm");
retval = ERROR_FLASH_OPERATION_FAILED;