X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Fflash%2Fnor%2Fstm32f1x.c;h=2d86e56655ae3af6e4f9a456eccec936c484f61d;hp=baf6b2752c10ea8ec252cfea03285989fece8f69;hb=9060ae7de5967b76f7dfa69939a00c56830f74a7;hpb=c89eb70a20230edfc79153c17c0c4c3f9dc64819
diff --git a/src/flash/nor/stm32f1x.c b/src/flash/nor/stm32f1x.c
index baf6b2752c..2d86e56655 100644
--- a/src/flash/nor/stm32f1x.c
+++ b/src/flash/nor/stm32f1x.c
@@ -102,25 +102,34 @@
#define KEY1 0x45670123
#define KEY2 0xCDEF89AB
+/* timeout values */
+
+#define FLASH_WRITE_TIMEOUT 10
+#define FLASH_ERASE_TIMEOUT 100
+
struct stm32x_options {
uint16_t RDP;
uint16_t user_options;
+ uint16_t user_data;
uint16_t protection[4];
};
struct stm32x_flash_bank {
struct stm32x_options option_bytes;
- struct working_area *write_algorithm;
int ppage_size;
int probed;
bool has_dual_banks;
/* used to access dual flash bank stm32xl */
uint32_t register_base;
+ uint16_t default_rdp;
+ int user_data_offset;
};
static int stm32x_mass_erase(struct flash_bank *bank);
static int stm32x_get_device_id(struct flash_bank *bank, uint32_t *device_id);
+static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
+ uint32_t offset, uint32_t count);
/* flash bank stm32x 0 0
*/
@@ -134,7 +143,6 @@ FLASH_BANK_COMMAND_HANDLER(stm32x_flash_bank_command)
stm32x_info = malloc(sizeof(struct stm32x_flash_bank));
bank->driver_priv = stm32x_info;
- stm32x_info->write_algorithm = NULL;
stm32x_info->probed = 0;
stm32x_info->has_dual_banks = false;
stm32x_info->register_base = FLASH_REG_BASE_B0;
@@ -224,6 +232,7 @@ static int stm32x_read_options(struct flash_bank *bank)
return retval;
stm32x_info->option_bytes.user_options = (uint16_t)0xFFF8 | ((optiondata >> 2) & 0x07);
+ stm32x_info->option_bytes.user_data = (optiondata >> stm32x_info->user_data_offset) & 0xffff;
stm32x_info->option_bytes.RDP = (optiondata & (1 << OPT_READOUT)) ? 0xFFFF : 0x5AA5;
if (optiondata & (1 << OPT_READOUT))
@@ -277,13 +286,13 @@ static int stm32x_erase_options(struct flash_bank *bank)
if (retval != ERROR_OK)
return retval;
- retval = stm32x_wait_status_busy(bank, 10);
+ retval = stm32x_wait_status_busy(bank, FLASH_ERASE_TIMEOUT);
if (retval != ERROR_OK)
return retval;
/* 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;
}
@@ -316,59 +325,24 @@ static int stm32x_write_options(struct flash_bank *bank)
if (retval != ERROR_OK)
return retval;
- /* write user option byte */
- retval = target_write_u16(target, STM32_OB_USER, stm32x_info->option_bytes.user_options);
- if (retval != ERROR_OK)
- return retval;
-
- retval = stm32x_wait_status_busy(bank, 10);
- if (retval != ERROR_OK)
- return retval;
-
- /* write protection byte 1 */
- retval = target_write_u16(target, STM32_OB_WRP0, stm32x_info->option_bytes.protection[0]);
- if (retval != ERROR_OK)
- return retval;
-
- retval = stm32x_wait_status_busy(bank, 10);
- if (retval != ERROR_OK)
- return retval;
-
- /* write protection byte 2 */
- retval = target_write_u16(target, STM32_OB_WRP1, stm32x_info->option_bytes.protection[1]);
- if (retval != ERROR_OK)
- return retval;
-
- retval = stm32x_wait_status_busy(bank, 10);
- if (retval != ERROR_OK)
- return retval;
-
- /* write protection byte 3 */
- retval = target_write_u16(target, STM32_OB_WRP2, stm32x_info->option_bytes.protection[2]);
- if (retval != ERROR_OK)
- return retval;
-
- retval = stm32x_wait_status_busy(bank, 10);
- if (retval != ERROR_OK)
- return retval;
-
- /* write protection byte 4 */
- retval = target_write_u16(target, STM32_OB_WRP3, stm32x_info->option_bytes.protection[3]);
- if (retval != ERROR_OK)
- return retval;
-
- retval = stm32x_wait_status_busy(bank, 10);
- if (retval != ERROR_OK)
- return retval;
-
- /* write readout protection bit */
- retval = target_write_u16(target, STM32_OB_RDP, stm32x_info->option_bytes.RDP);
- if (retval != ERROR_OK)
- return retval;
-
- retval = stm32x_wait_status_busy(bank, 10);
- if (retval != ERROR_OK)
+ uint8_t opt_bytes[16];
+
+ target_buffer_set_u16(target, opt_bytes, stm32x_info->option_bytes.RDP);
+ target_buffer_set_u16(target, opt_bytes + 2, stm32x_info->option_bytes.user_options);
+ target_buffer_set_u16(target, opt_bytes + 4, stm32x_info->option_bytes.user_data & 0xff);
+ target_buffer_set_u16(target, opt_bytes + 6, (stm32x_info->option_bytes.user_data >> 8) & 0xff);
+ target_buffer_set_u16(target, opt_bytes + 8, stm32x_info->option_bytes.protection[0]);
+ target_buffer_set_u16(target, opt_bytes + 10, stm32x_info->option_bytes.protection[1]);
+ target_buffer_set_u16(target, opt_bytes + 12, stm32x_info->option_bytes.protection[2]);
+ target_buffer_set_u16(target, opt_bytes + 14, stm32x_info->option_bytes.protection[3]);
+
+ uint32_t offset = STM32_OB_RDP - bank->base;
+ retval = stm32x_write_block(bank, opt_bytes, offset, sizeof(opt_bytes) / 2);
+ if (retval != ERROR_OK) {
+ if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
+ LOG_ERROR("working area required to erase options bytes");
return retval;
+ }
retval = target_write_u32(target, STM32_FLASH_CR_B0, FLASH_LOCK);
if (retval != ERROR_OK)
@@ -481,7 +455,7 @@ static int stm32x_erase(struct flash_bank *bank, int first, int last)
if (retval != ERROR_OK)
return retval;
- retval = stm32x_wait_status_busy(bank, 100);
+ retval = stm32x_wait_status_busy(bank, FLASH_ERASE_TIMEOUT);
if (retval != ERROR_OK)
return retval;
@@ -595,6 +569,7 @@ static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
struct stm32x_flash_bank *stm32x_info = bank->driver_priv;
struct target *target = bank->target;
uint32_t buffer_size = 16384;
+ struct working_area *write_algorithm;
struct working_area *source;
uint32_t address = bank->base + offset;
struct reg_param reg_params[5];
@@ -644,12 +619,12 @@ static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
/* flash write code */
if (target_alloc_working_area(target, sizeof(stm32x_flash_write_code),
- &stm32x_info->write_algorithm) != ERROR_OK) {
+ &write_algorithm) != ERROR_OK) {
LOG_WARNING("no working area available, can't do block memory writes");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
};
- retval = target_write_buffer(target, stm32x_info->write_algorithm->address,
+ retval = target_write_buffer(target, write_algorithm->address,
sizeof(stm32x_flash_write_code), (uint8_t *)stm32x_flash_write_code);
if (retval != ERROR_OK)
return retval;
@@ -659,10 +634,9 @@ static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
buffer_size /= 2;
buffer_size &= ~3UL; /* Make sure it's 4 byte aligned */
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 (stm32x_info->write_algorithm)
- target_free_working_area(target, stm32x_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;
@@ -688,7 +662,7 @@ static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
0, NULL,
5, reg_params,
source->address, source->size,
- stm32x_info->write_algorithm->address, 0,
+ write_algorithm->address, 0,
&armv7m_info);
if (retval == ERROR_FLASH_OPERATION_FAILED) {
@@ -709,7 +683,7 @@ static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
}
target_free_working_area(target, source);
- target_free_working_area(target, stm32x_info->write_algorithm);
+ target_free_working_area(target, write_algorithm);
destroy_reg_param(®_params[0]);
destroy_reg_param(®_params[1]);
@@ -882,6 +856,10 @@ static int stm32x_probe(struct flash_bank *bank)
stm32x_info->probed = 0;
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);
@@ -921,6 +899,8 @@ static int stm32x_probe(struct flash_bank *bank)
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 0x428: /* value line High density */
page_size = 2048;
@@ -937,11 +917,15 @@ static int stm32x_probe(struct flash_bank *bank)
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.");
@@ -1131,7 +1115,15 @@ static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
switch (device_id >> 16) {
case 0x1000:
- snprintf(buf, buf_size, "1.0");
+ snprintf(buf, buf_size, "A");
+ break;
+
+ case 0x1001:
+ snprintf(buf, buf_size, "Z");
+ break;
+
+ case 0x2000:
+ snprintf(buf, buf_size, "B");
break;
default:
@@ -1177,7 +1169,11 @@ static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
switch (device_id >> 16) {
case 0x1000:
- snprintf(buf, buf_size, "1.0");
+ snprintf(buf, buf_size, "A");
+ break;
+
+ case 0x2000:
+ snprintf(buf, buf_size, "B");
break;
default:
@@ -1356,6 +1352,11 @@ COMMAND_HANDLER(stm32x_handle_options_read_command)
command_print(CMD_CTX, "Boot: Bank 1");
}
+ command_print(CMD_CTX, "User Option0: 0x%02" PRIx8,
+ (optionbyte >> stm32x_info->user_data_offset) & 0xff);
+ command_print(CMD_CTX, "User Option1: 0x%02" PRIx8,
+ (optionbyte >> (stm32x_info->user_data_offset + 8)) & 0xff);
+
return ERROR_OK;
}
@@ -1461,7 +1462,7 @@ static int stm32x_mass_erase(struct flash_bank *bank)
if (retval != ERROR_OK)
return retval;
- retval = stm32x_wait_status_busy(bank, 100);
+ retval = stm32x_wait_status_busy(bank, FLASH_ERASE_TIMEOUT);
if (retval != ERROR_OK)
return retval;