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flash: add stm32lx High Density Devices 

Change-Id: Ieed9de4b078e1ebf659054a758b4f69acdf5b83e
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/466
Tested-by: jenkins
This commit is contained in:
Spencer Oliver 2012-02-17 14:41:33 +00:00
parent 38dc253001
commit 14f51c0a32
1 changed files with 48 additions and 14 deletions
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62
src/flash/nor/stm32lx.c
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@ -461,7 +461,7 @@ static int stm32lx_probe(struct flash_bank *bank)
struct target *target = bank->target; struct target *target = bank->target;
struct stm32lx_flash_bank *stm32lx_info = bank->driver_priv; struct stm32lx_flash_bank *stm32lx_info = bank->driver_priv;
int i; int i;
uint16_t flash_size; uint16_t flash_size_in_kb;
uint32_t device_id; uint32_t device_id;
stm32lx_info->probed = 0; stm32lx_info->probed = 0;
@ -473,20 +473,27 @@ static int stm32lx_probe(struct flash_bank *bank)
LOG_DEBUG("device id = 0x%08" PRIx32 "", device_id); LOG_DEBUG("device id = 0x%08" PRIx32 "", device_id);
if ((device_id & 0xfff) != 0x416) {
LOG_WARNING("Cannot identify target as a STM32L family.");
return ERROR_FAIL;
}
/* get flash size from target. */ /* get flash size from target. */
retval = target_read_u16(target, F_SIZE, &flash_size); retval = target_read_u16(target, F_SIZE, &flash_size_in_kb);
if (retval != ERROR_OK) if (retval != ERROR_OK)
return retval; return retval;
/* check for valid flash size */ if ((device_id & 0xfff) == 0x416) {
if (flash_size == 0xffff) { /* check for early silicon */
/* number of sectors incorrect on revA */ if (flash_size_in_kb == 0xffff) {
LOG_ERROR("STM32 flash size failed, probe inaccurate"); /* number of sectors may be incorrrect on early silicon */
LOG_WARNING("STM32 flash size failed, probe inaccurate - assuming 128k flash");
flash_size_in_kb = 128;
}
} else if ((device_id & 0xfff) == 0x436) {
/* check for early silicon */
if (flash_size_in_kb == 0xffff) {
/* number of sectors may be incorrrect on early silicon */
LOG_WARNING("STM32 flash size failed, probe inaccurate - assuming 384k flash");
flash_size_in_kb = 384;
}
} else {
LOG_WARNING("Cannot identify target as a STM32L family.");
return ERROR_FAIL; return ERROR_FAIL;
} }
@ -494,8 +501,8 @@ static int stm32lx_probe(struct flash_bank *bank)
* 16 pages for a protection area */ * 16 pages for a protection area */
/* calculate numbers of sectors (4kB per sector) */ /* calculate numbers of sectors (4kB per sector) */
int num_sectors = (flash_size * 1024) / FLASH_SECTOR_SIZE; int num_sectors = (flash_size_in_kb * 1024) / FLASH_SECTOR_SIZE;
LOG_INFO("flash size = %dkbytes", flash_size); LOG_INFO("flash size = %dkbytes", flash_size_in_kb);
if (bank->sectors) { if (bank->sectors) {
free(bank->sectors); free(bank->sectors);
@ -503,7 +510,7 @@ static int stm32lx_probe(struct flash_bank *bank)
} }
bank->base = FLASH_BANK0_ADDRESS; bank->base = FLASH_BANK0_ADDRESS;
bank->size = flash_size * 1024; bank->size = flash_size_in_kb * 1024;
bank->num_sectors = num_sectors; bank->num_sectors = num_sectors;
bank->sectors = malloc(sizeof(struct flash_sector) * num_sectors); bank->sectors = malloc(sizeof(struct flash_sector) * num_sectors);
if (bank->sectors == NULL) { if (bank->sectors == NULL) {
@ -609,6 +616,33 @@ static int stm32lx_get_info(struct flash_bank *bank, char *buf, int buf_size)
case 0x1008: case 0x1008:
snprintf(buf, buf_size, "Y"); snprintf(buf, buf_size, "Y");
break; break;
case 0x1038:
snprintf(buf, buf_size, "W");
break;
case 0x1078:
snprintf(buf, buf_size, "V");
break;
default:
snprintf(buf, buf_size, "unknown");
break;
}
} else if ((device_id & 0xfff) == 0x436) {
printed = snprintf(buf, buf_size, "stm32lx (HD) - Rev: ");
buf += printed;
buf_size -= printed;
switch (device_id >> 16) {
case 0x1000:
snprintf(buf, buf_size, "A");
break;
case 0x1008:
snprintf(buf, buf_size, "Z");
break;
default: default:
snprintf(buf, buf_size, "unknown"); snprintf(buf, buf_size, "unknown");
break; break;