static int stm32lx_wait_until_bsy_clear(struct flash_bank *bank);
struct stm32lx_flash_bank {
- struct working_area *write_algorithm;
int probed;
};
bank->driver_priv = stm32lx_info;
- stm32lx_info->write_algorithm = NULL;
stm32lx_info->probed = 0;
return ERROR_OK;
static int stm32lx_write_half_pages(struct flash_bank *bank, uint8_t *buffer,
uint32_t offset, uint32_t count)
{
- struct stm32lx_flash_bank *stm32lx_info = bank->driver_priv;
struct target *target = bank->target;
uint32_t buffer_size = 4096 * 4;
+ struct working_area *write_algorithm;
struct working_area *source;
uint32_t address = bank->base + offset;
/* Add bytes to make 4byte aligned */
reg32 += (4 - (reg32 % 4)) % 4;
retval = target_alloc_working_area(target, reg32,
- &stm32lx_info->write_algorithm);
+ &write_algorithm);
if (retval != ERROR_OK)
return retval;
/* Write the flashing code */
retval = target_write_buffer(target,
- stm32lx_info->write_algorithm->address,
+ write_algorithm->address,
sizeof(stm32lx_flash_write_code),
(uint8_t *)stm32lx_flash_write_code);
if (retval != ERROR_OK) {
- target_free_working_area(target, stm32lx_info->write_algorithm);
+ target_free_working_area(target, write_algorithm);
return retval;
}
buffer_size /= 2;
if (buffer_size <= 256) {
- /* if we already allocated the writing code, but failed to get a
+ /* we already allocated the writing code, but failed to get a
* buffer, free the algorithm */
- if (stm32lx_info->write_algorithm)
- target_free_working_area(target, stm32lx_info->write_algorithm);
+ target_free_working_area(target, write_algorithm);
LOG_WARNING("no large enough working area available, can't do block memory writes");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
retval = stm32lx_enable_write_half_page(bank);
if (retval != ERROR_OK) {
target_free_working_area(target, source);
- target_free_working_area(target, stm32lx_info->write_algorithm);
+ target_free_working_area(target, write_algorithm);
destroy_reg_param(®_params[0]);
destroy_reg_param(®_params[1]);
/* 5: Execute the bunch of code */
retval = target_run_algorithm(target, 0, NULL, sizeof(reg_params)
/ sizeof(*reg_params), reg_params,
- stm32lx_info->write_algorithm->address, 0, 20000, &armv7m_info);
+ write_algorithm->address, 0, 20000, &armv7m_info);
if (retval != ERROR_OK)
break;
retval = stm32lx_lock_program_memory(bank);
target_free_working_area(target, source);
- target_free_working_area(target, stm32lx_info->write_algorithm);
+ target_free_working_area(target, write_algorithm);
destroy_reg_param(®_params[0]);
destroy_reg_param(®_params[1]);
}
if (halfpages_number) {
- retval = stm32lx_write_half_pages(bank, buffer, offset, 128
- * halfpages_number);
- if (retval != ERROR_OK)
- return ERROR_FAIL;
+ retval = stm32lx_write_half_pages(bank, buffer, offset, 128 * halfpages_number);
+ if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE) {
+ /* attempt slow memory writes */
+ LOG_WARNING("couldn't use block writes, falling back to single memory accesses");
+ halfpages_number = 0;
+ words_remaining = (count / 4);
+ } else {
+ if (retval != ERROR_OK)
+ return ERROR_FAIL;
+ }
}
bytes_written = 128 * halfpages_number;
snprintf(buf, buf_size, "Z");
break;
+ case 0x1018:
+ snprintf(buf, buf_size, "Y");
+ break;
+
default:
snprintf(buf, buf_size, "unknown");
break;