bool has_dual_banks;
/* used to access dual flash bank stm32xl */
uint32_t register_base;
+ uint16_t default_rdp;
int user_data_offset;
};
if (retval != ERROR_OK)
return retval;
- stm32x_info->option_bytes.user_options = (uint16_t)0xFFF8 | ((optiondata >> 2) & 0x07);
+ stm32x_info->option_bytes.user_options = (uint16_t)0xFFF0 | ((optiondata >> 2) & 0x0f);
stm32x_info->option_bytes.user_data = (optiondata >> stm32x_info->user_data_offset) & 0xffff;
stm32x_info->option_bytes.RDP = (optiondata & (1 << OPT_READOUT)) ? 0xFFFF : 0x5AA5;
/* clear readout protection and complementary option bytes
* this will also force a device unlock if set */
- stm32x_info->option_bytes.RDP = 0x5AA5;
+ stm32x_info->option_bytes.RDP = stm32x_info->default_rdp;
return ERROR_OK;
}
stm32x_info->register_base = FLASH_REG_BASE_B0;
stm32x_info->user_data_offset = 10;
+ /* default factory protection level */
+ stm32x_info->default_rdp = 0x5AA5;
+
/* read stm32 device id register */
int retval = stm32x_get_device_id(bank, &device_id);
if (retval != ERROR_OK)
stm32x_info->ppage_size = 2;
max_flash_size_in_kb = 256;
stm32x_info->user_data_offset = 16;
+ stm32x_info->default_rdp = 0x55AA;
break;
case 0x428: /* value line High density */
page_size = 2048;
stm32x_info->ppage_size = 2;
max_flash_size_in_kb = 256;
stm32x_info->user_data_offset = 16;
+ stm32x_info->default_rdp = 0x55AA;
break;
case 0x440: /* stm32f0x */
page_size = 1024;
stm32x_info->ppage_size = 4;
max_flash_size_in_kb = 64;
stm32x_info->user_data_offset = 16;
+ stm32x_info->default_rdp = 0x55AA;
break;
default:
LOG_WARNING("Cannot identify target as a STM32 family.");
{
struct target *target = NULL;
struct stm32x_flash_bank *stm32x_info = NULL;
- uint16_t optionbyte = 0xF8;
+ uint16_t optionbyte;
- if (CMD_ARGC < 4)
+ if (CMD_ARGC < 2)
return ERROR_COMMAND_SYNTAX_ERROR;
struct flash_bank *bank;
if (ERROR_OK != retval)
return retval;
- /* REVISIT: ignores some options which we will display...
- * and doesn't insist on the specified syntax.
- */
-
- /* OPT_RDWDGSW */
- if (strcmp(CMD_ARGV[1], "SWWDG") == 0)
- optionbyte |= (1 << 0);
- else /* REVISIT must be "HWWDG" then ... */
- optionbyte &= ~(1 << 0);
-
- /* OPT_RDRSTSTOP */
- if (strcmp(CMD_ARGV[2], "NORSTSTOP") == 0)
- optionbyte |= (1 << 1);
- else /* REVISIT must be "RSTSTNDBY" then ... */
- optionbyte &= ~(1 << 1);
-
- /* OPT_RDRSTSTDBY */
- if (strcmp(CMD_ARGV[3], "NORSTSTNDBY") == 0)
- optionbyte |= (1 << 2);
- else /* REVISIT must be "RSTSTOP" then ... */
- optionbyte &= ~(1 << 2);
-
- if (CMD_ARGC > 4 && stm32x_info->has_dual_banks) {
- /* OPT_BFB2 */
- if (strcmp(CMD_ARGV[4], "BOOT0") == 0)
- optionbyte |= (1 << 3);
- else
- optionbyte &= ~(1 << 3);
+ retval = stm32x_read_options(bank);
+ if (ERROR_OK != retval)
+ return retval;
+
+ /* start with current options */
+ optionbyte = stm32x_info->option_bytes.user_options;
+
+ /* skip over flash bank */
+ CMD_ARGC--;
+ CMD_ARGV++;
+
+ while (CMD_ARGC) {
+ if (strcmp("SWWDG", CMD_ARGV[0]) == 0)
+ optionbyte |= (1 << 0);
+ else if (strcmp("HWWDG", CMD_ARGV[0]) == 0)
+ optionbyte &= ~(1 << 0);
+ else if (strcmp("NORSTSTOP", CMD_ARGV[0]) == 0)
+ optionbyte &= ~(1 << 1);
+ else if (strcmp("RSTSTNDBY", CMD_ARGV[0]) == 0)
+ optionbyte &= ~(1 << 1);
+ else if (strcmp("NORSTSTNDBY", CMD_ARGV[0]) == 0)
+ optionbyte &= ~(1 << 2);
+ else if (strcmp("RSTSTOP", CMD_ARGV[0]) == 0)
+ optionbyte &= ~(1 << 2);
+ else if (stm32x_info->has_dual_banks) {
+ if (strcmp("BOOT0", CMD_ARGV[0]) == 0)
+ optionbyte |= (1 << 3);
+ else if (strcmp("BOOT1", CMD_ARGV[0]) == 0)
+ optionbyte &= ~(1 << 3);
+ else
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ } else
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ CMD_ARGC--;
+ CMD_ARGV++;
}
if (stm32x_erase_options(bank) != ERROR_OK) {