nRF51 doesn't have any sort of flash page cache so we need to write
all of the data on the word-by-word basis and poll for "Flash Ready"
bit each time.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Change-Id: I8caffbf69ebf9a69915724704ddbe270d1bb8d92
Reviewed-on: http://openocd.zylin.com/2050
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
+static int nrf51_ll_flash_write(struct nrf51_info *chip, uint32_t offset, const uint8_t *buffer, uint32_t buffer_size)
+{
+ int res;
+ assert(buffer_size % 4 == 0);
+
+ for (; buffer_size > 0; buffer_size -= 4) {
+ res = target_write_memory(chip->target, offset, 4, 1, buffer);
+ if (res != ERROR_OK)
+ return res;
+
+ res = nrf51_wait_for_nvmc(chip);
+ if (res != ERROR_OK)
+ return res;
+
+ offset += 4;
+ buffer += 4;
+ }
+
+ return ERROR_OK;
+}
+
static int nrf51_write_page(struct flash_bank *bank, uint32_t offset, const uint8_t *buffer)
{
assert(offset % 4 == 0);
static int nrf51_write_page(struct flash_bank *bank, uint32_t offset, const uint8_t *buffer)
{
assert(offset % 4 == 0);
int res = ERROR_FAIL;
struct nrf51_info *chip = bank->driver_priv;
struct flash_sector *sector = nrf51_find_sector_by_address(bank, offset);
int res = ERROR_FAIL;
struct nrf51_info *chip = bank->driver_priv;
struct flash_sector *sector = nrf51_find_sector_by_address(bank, offset);
goto error;
sector->is_erased = 0;
goto error;
sector->is_erased = 0;
- res = target_write_memory(bank->target, offset, 4,
- chip->code_page_size / 4, buffer);
+
+ res = nrf51_ll_flash_write(chip, offset, buffer, chip->code_page_size);
if (res != ERROR_OK)
goto set_read_only;
if (res != ERROR_OK)
goto set_read_only;
memcpy(&uicr[offset], buffer, count);
memcpy(&uicr[offset], buffer, count);
- res = target_write_memory(bank->target,
- NRF51_UICR_BASE,
- 4,
- NRF51_UICR_SIZE / 4,
- uicr);
+ res = nrf51_ll_flash_write(chip, NRF51_UICR_BASE, uicr, NRF51_UICR_SIZE);
if (res != ERROR_OK) {
nrf51_nvmc_read_only(chip);
return res;
if (res != ERROR_OK) {
nrf51_nvmc_read_only(chip);
return res;
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