Browse Source

flash/nor/stm32l4x: fix minor errors in flash write/async algo

Fix comment of tested errors in asm src.

List all relevant errors in FLASH_ERROR mask: FLASH_PROGERR was missing
and any trial to re-program already programmed double word ended up
in the error bit held uncleared and flash write permanetly repeating
the error message until reset.

Lock the bank also after unsuccesfull write_block run.

Set async target algo block size to size of double word.

Remove warning in case of write_block success. In case of error
use LOG_ERROR instead of warning.

Change-Id: Ibf6d5e306a4c2eaa43de67d636b4902c737f02f3
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/5360
Tested-by: jenkins
Reviewed-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
master
Tomas Vanek 1 year ago
parent
commit
e7e681ac2b
2 changed files with 13 additions and 12 deletions
  1. +1
    -1
      contrib/loaders/flash/stm32/stm32l4x.S
  2. +12
    -11
      src/flash/nor/stm32l4x.c

+ 1
- 1
contrib/loaders/flash/stm32/stm32l4x.S View File

@@ -71,7 +71,7 @@ busy:
ldr r6, [r4, #STM32_FLASH_SR_OFFSET]
tst r6, #0x10000 /* BSY (bit16) == 1 => operation in progress */
bne busy /* wait more... */
tst r6, #0xfa /* PGSERR | PGPERR | PGAERR | WRPERR | PROGERR*/
tst r6, #0xfa /* PGSERR | SIZERR | PGAERR | WRPERR | PROGERR | OPERR */
bne error /* fail... */

cmp r5, r1 /* wrap rp at end of buffer */


+ 12
- 11
src/flash/nor/stm32l4x.c View File

@@ -106,7 +106,7 @@
#define FLASH_PROGERR (1 << 3) /* Programming error */
#define FLASH_OPERR (1 << 1) /* Operation error */
#define FLASH_EOP (1 << 0) /* End of operation */
#define FLASH_ERROR (FLASH_PGSERR | FLASH_PGSERR | FLASH_PGAERR | FLASH_WRPERR | FLASH_OPERR)
#define FLASH_ERROR (FLASH_PGSERR | FLASH_SIZERR | FLASH_PGAERR | FLASH_WRPERR | FLASH_PROGERR | FLASH_OPERR)

/* register unlock keys */
#define KEY1 0x45670123
@@ -577,7 +577,7 @@ static int stm32l4_protect(struct flash_bank *bank, int set, int first, int last
return ret;
}

/* Count is in halfwords */
/* Count is in double-words */
static int stm32l4_write_block(struct flash_bank *bank, const uint8_t *buffer,
uint32_t offset, uint32_t count)
{
@@ -630,15 +630,15 @@ static int stm32l4_write_block(struct flash_bank *bank, const uint8_t *buffer,
init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT); /* buffer end */
init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT); /* target address */
init_reg_param(&reg_params[3], "r3", 32, PARAM_OUT); /* count (double word-64bit) */
init_reg_param(&reg_params[4], "r4", 32, PARAM_OUT); /* flash base */
init_reg_param(&reg_params[4], "r4", 32, PARAM_OUT); /* flash regs base */

buf_set_u32(reg_params[0].value, 0, 32, source->address);
buf_set_u32(reg_params[1].value, 0, 32, source->address + source->size);
buf_set_u32(reg_params[2].value, 0, 32, address);
buf_set_u32(reg_params[3].value, 0, 32, count / 4);
buf_set_u32(reg_params[3].value, 0, 32, count);
buf_set_u32(reg_params[4].value, 0, 32, stm32l4_info->part_info->flash_regs_base);

retval = target_run_flash_async_algorithm(target, buffer, count, 2,
retval = target_run_flash_async_algorithm(target, buffer, count, 8,
0, NULL,
5, reg_params,
source->address, source->size,
@@ -676,7 +676,7 @@ static int stm32l4_write_block(struct flash_bank *bank, const uint8_t *buffer,
static int stm32l4_write(struct flash_bank *bank, const uint8_t *buffer,
uint32_t offset, uint32_t count)
{
int retval;
int retval, retval2;

if (bank->target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
@@ -692,14 +692,15 @@ static int stm32l4_write(struct flash_bank *bank, const uint8_t *buffer,
if (retval != ERROR_OK)
return retval;

retval = stm32l4_write_block(bank, buffer, offset, count / 2);
retval = stm32l4_write_block(bank, buffer, offset, count / 8);

retval2 = stm32l4_write_flash_reg(bank, STM32_FLASH_CR, FLASH_LOCK);

if (retval != ERROR_OK) {
LOG_WARNING("block write failed");
LOG_ERROR("block write failed");
return retval;
}

LOG_WARNING("block write succeeded");
return stm32l4_write_flash_reg(bank, STM32_FLASH_CR, FLASH_LOCK);
return retval2;
}

static int stm32l4_read_idcode(struct flash_bank *bank, uint32_t *id)


Loading…
Cancel
Save