#include "imp.h"
#include <helper/binarybuffer.h>
#include <target/algorithm.h>
-#include <target/armv7m.h>
+#include <target/cortex_m.h>
/* stm32x register locations */
/* if we have a dual flash bank device then
* we need to perform option byte stuff on bank0 only */
if (stm32x_info->register_base != FLASH_REG_BASE_B0) {
- LOG_ERROR("Option Byte Operation's must use bank0");
+ LOG_ERROR("Option byte operations must use bank 0");
return ERROR_FLASH_OPERATION_FAILED;
}
uint32_t protection;
int retval = stm32x_check_operation_supported(bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
/* medium density - each bit refers to a 4 sector protection block
if (retval != ERROR_OK)
return retval;
- for (int i = 0; i < bank->num_prot_blocks; i++)
+ for (unsigned int i = 0; i < bank->num_prot_blocks; i++)
bank->prot_blocks[i].is_protected = (protection & (1 << i)) ? 0 : 1;
return ERROR_OK;
}
-static int stm32x_erase(struct flash_bank *bank, int first, int last)
+static int stm32x_erase(struct flash_bank *bank, unsigned int first,
+ unsigned int last)
{
struct target *target = bank->target;
if (retval != ERROR_OK)
return retval;
- for (int i = first; i <= last; i++) {
+ for (unsigned int i = first; i <= last; i++) {
retval = target_write_u32(target, stm32x_get_flash_reg(bank, STM32_FLASH_CR), FLASH_PER);
if (retval != ERROR_OK)
return retval;
retval = stm32x_wait_status_busy(bank, FLASH_ERASE_TIMEOUT);
if (retval != ERROR_OK)
return retval;
-
- bank->sectors[i].is_erased = 1;
}
retval = target_write_u32(target, stm32x_get_flash_reg(bank, STM32_FLASH_CR), FLASH_LOCK);
return ERROR_OK;
}
-static int stm32x_protect(struct flash_bank *bank, int set, int first, int last)
+static int stm32x_protect(struct flash_bank *bank, int set, unsigned int first,
+ unsigned int last)
{
struct target *target = bank->target;
struct stm32x_flash_bank *stm32x_info = bank->driver_priv;
return retval;
}
- for (int i = first; i <= last; i++) {
+ for (unsigned int i = first; i <= last; i++) {
if (set)
stm32x_info->option_bytes.protection &= ~(1 << i);
else
* discrete accesses. */
if (count & 1) {
new_buffer = malloc(count + 1);
- if (new_buffer == NULL) {
+ if (!new_buffer) {
LOG_ERROR("odd number of bytes to write and no memory for padding buffer");
return ERROR_FAIL;
}
LOG_WARNING("couldn't use block writes, falling back to single memory accesses");
while (words_remaining > 0) {
- uint16_t value;
- memcpy(&value, buffer, sizeof(uint16_t));
-
- retval = target_write_u16(target, bank->base + offset, value);
+ retval = target_write_memory(target, bank->base + offset, 2, 1, buffer);
if (retval != ERROR_OK)
goto reset_pg_and_lock;
retval = retval2;
cleanup:
- if (new_buffer)
- free(new_buffer);
-
+ free(new_buffer);
return retval;
}
static int stm32x_get_device_id(struct flash_bank *bank, uint32_t *device_id)
{
- /* This check the device CPUID core register to detect
- * the M0 from the M3 devices. */
-
struct target *target = bank->target;
- uint32_t cpuid, device_id_register = 0;
+ uint32_t device_id_register = 0;
- /* Get the CPUID from the ARM Core
- * http://infocenter.arm.com/help/topic/com.arm.doc.ddi0432c/DDI0432C_cortex_m0_r0p0_trm.pdf 4.2.1 */
- int retval = target_read_u32(target, 0xE000ED00, &cpuid);
- if (retval != ERROR_OK)
- return retval;
+ if (!target_was_examined(target)) {
+ LOG_ERROR("Target not examined yet");
+ return ERROR_TARGET_NOT_EXAMINED;
+ }
- if (((cpuid >> 4) & 0xFFF) == 0xC20) {
- /* 0xC20 is M0 devices */
+ switch (cortex_m_get_partno_safe(target)) {
+ case CORTEX_M0_PARTNO: /* STM32F0x devices */
device_id_register = 0x40015800;
- } else if (((cpuid >> 4) & 0xFFF) == 0xC23) {
- /* 0xC23 is M3 devices */
+ break;
+ case CORTEX_M3_PARTNO: /* STM32F1x devices */
device_id_register = 0xE0042000;
- } else if (((cpuid >> 4) & 0xFFF) == 0xC24) {
- /* 0xC24 is M4 devices */
+ break;
+ case CORTEX_M4_PARTNO: /* STM32F3x devices */
device_id_register = 0xE0042000;
- } else {
+ break;
+ case CORTEX_M23_PARTNO: /* GD32E23x devices */
+ device_id_register = 0x40015800;
+ break;
+ default:
LOG_ERROR("Cannot identify target as a stm32x");
return ERROR_FAIL;
}
/* read stm32 device id register */
- retval = target_read_u32(target, device_id_register, device_id);
+ int retval = target_read_u32(target, device_id_register, device_id);
if (retval != ERROR_OK)
return retval;
static int stm32x_get_flash_size(struct flash_bank *bank, uint16_t *flash_size_in_kb)
{
struct target *target = bank->target;
- uint32_t cpuid, flash_size_reg;
+ uint32_t flash_size_reg;
- int retval = target_read_u32(target, 0xE000ED00, &cpuid);
- if (retval != ERROR_OK)
- return retval;
+ if (!target_was_examined(target)) {
+ LOG_ERROR("Target not examined yet");
+ return ERROR_TARGET_NOT_EXAMINED;
+ }
- if (((cpuid >> 4) & 0xFFF) == 0xC20) {
- /* 0xC20 is M0 devices */
+ switch (cortex_m_get_partno_safe(target)) {
+ case CORTEX_M0_PARTNO: /* STM32F0x devices */
flash_size_reg = 0x1FFFF7CC;
- } else if (((cpuid >> 4) & 0xFFF) == 0xC23) {
- /* 0xC23 is M3 devices */
+ break;
+ case CORTEX_M3_PARTNO: /* STM32F1x devices */
flash_size_reg = 0x1FFFF7E0;
- } else if (((cpuid >> 4) & 0xFFF) == 0xC24) {
- /* 0xC24 is M4 devices */
+ break;
+ case CORTEX_M4_PARTNO: /* STM32F3x devices */
flash_size_reg = 0x1FFFF7CC;
- } else {
+ break;
+ case CORTEX_M23_PARTNO: /* GD32E23x devices */
+ flash_size_reg = 0x1FFFF7E0;
+ break;
+ default:
LOG_ERROR("Cannot identify target as a stm32x");
return ERROR_FAIL;
}
- retval = target_read_u16(target, flash_size_reg, flash_size_in_kb);
+ int retval = target_read_u16(target, flash_size_reg, flash_size_in_kb);
if (retval != ERROR_OK)
return retval;
struct stm32x_flash_bank *stm32x_info = bank->driver_priv;
uint16_t flash_size_in_kb;
uint16_t max_flash_size_in_kb;
- uint32_t device_id;
+ uint32_t dbgmcu_idcode;
int page_size;
uint32_t base_address = 0x08000000;
stm32x_info->default_rdp = 0xA5;
/* read stm32 device id register */
- int retval = stm32x_get_device_id(bank, &device_id);
+ int retval = stm32x_get_device_id(bank, &dbgmcu_idcode);
if (retval != ERROR_OK)
return retval;
- LOG_INFO("device id = 0x%08" PRIx32 "", device_id);
+ LOG_INFO("device id = 0x%08" PRIx32 "", dbgmcu_idcode);
+
+ uint16_t device_id = dbgmcu_idcode & 0xfff;
+ uint16_t rev_id = dbgmcu_idcode >> 16;
/* set page size, protection granularity and max flash size depending on family */
- switch (device_id & 0xfff) {
+ switch (device_id) {
case 0x440: /* stm32f05x */
page_size = 1024;
stm32x_info->ppage_size = 4;
page_size = 1024;
stm32x_info->ppage_size = 4;
max_flash_size_in_kb = 128;
+ /* GigaDevice GD32F1x0 & GD32F3x0 & GD32E23x series devices
+ share DEV_ID with STM32F101/2/3 medium-density line,
+ however they use a REV_ID different from any STM32 device.
+ The main difference is another offset of user option bits
+ (like WDG_SW, nRST_STOP, nRST_STDBY) in option byte register
+ (FLASH_OBR/FMC_OBSTAT 0x4002201C).
+ This caused problems e.g. during flash block programming
+ because of unexpected active hardware watchog. */
+ switch (rev_id) {
+ case 0x1303: /* gd32f1x0 */
+ stm32x_info->user_data_offset = 16;
+ stm32x_info->option_offset = 6;
+ max_flash_size_in_kb = 64;
+ break;
+ case 0x1704: /* gd32f3x0 */
+ stm32x_info->user_data_offset = 16;
+ stm32x_info->option_offset = 6;
+ break;
+ case 0x1909: /* gd32e23x */
+ stm32x_info->user_data_offset = 16;
+ stm32x_info->option_offset = 6;
+ max_flash_size_in_kb = 64;
+ break;
+ }
break;
case 0x412: /* stm32f1x low-density */
page_size = 1024;
/* check that calculation result makes sense */
assert(num_pages > 0);
- if (bank->sectors) {
- free(bank->sectors);
- bank->sectors = NULL;
- }
+ free(bank->sectors);
+ bank->sectors = NULL;
- if (bank->prot_blocks) {
- free(bank->prot_blocks);
- bank->prot_blocks = NULL;
- }
+ free(bank->prot_blocks);
+ bank->prot_blocks = NULL;
bank->base = base_address;
bank->size = (num_pages * page_size);
return rev_str;
}
-static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
+static int get_stm32x_info(struct flash_bank *bank, struct command_invocation *cmd)
{
uint32_t dbgmcu_idcode;
- /* read stm32 device id register */
+ /* read stm32 device id register */
int retval = stm32x_get_device_id(bank, &dbgmcu_idcode);
if (retval != ERROR_OK)
return retval;
rev_str = "A";
break;
+ case 0x1303: /* gd32f1x0 */
+ device_str = "GD32F1x0";
+ break;
+
+ case 0x1704: /* gd32f3x0 */
+ device_str = "GD32F3x0";
+ break;
+
+ case 0x1909: /* gd32e23x */
+ device_str = "GD32E23x";
+ break;
+
case 0x2000:
rev_str = "B";
break;
break;
default:
- snprintf(buf, buf_size, "Cannot identify target as a STM32F0/1/3\n");
+ command_print_sameline(cmd, "Cannot identify target as a STM32F0/1/3\n");
return ERROR_FAIL;
}
- if (rev_str != NULL)
- snprintf(buf, buf_size, "%s - Rev: %s", device_str, rev_str);
+ if (rev_str)
+ command_print_sameline(cmd, "%s - Rev: %s", device_str, rev_str);
else
- snprintf(buf, buf_size, "%s - Rev: unknown (0x%04x)", device_str, rev_id);
+ command_print_sameline(cmd, "%s - Rev: unknown (0x%04x)", device_str, rev_id);
return ERROR_OK;
}
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
stm32x_info = bank->driver_priv;
}
retval = stm32x_check_operation_supported(bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
if (stm32x_erase_options(bank) != ERROR_OK) {
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
target = bank->target;
}
retval = stm32x_check_operation_supported(bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
if (stm32x_erase_options(bank) != ERROR_OK) {
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
stm32x_info = bank->driver_priv;
}
retval = stm32x_check_operation_supported(bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
retval = target_read_u32(target, STM32_FLASH_OBR_B0, &optionbyte);
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
stm32x_info = bank->driver_priv;
}
retval = stm32x_check_operation_supported(bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
retval = stm32x_read_options(bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
/* start with current options */
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
struct stm32x_flash_bank *stm32x_info = bank->driver_priv;
}
retval = stm32x_check_operation_supported(bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
/* unlock option flash registers */
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
retval = stm32x_mass_erase(bank);
- if (retval == ERROR_OK) {
- /* set all sectors as erased */
- for (int i = 0; i < bank->num_sectors; i++)
- bank->sectors[i].is_erased = 1;
-
+ if (retval == ERROR_OK)
command_print(CMD, "stm32x mass erase complete");
- } else
+ else
command_print(CMD, "stm32x mass erase failed");
return retval;
}
-static const struct command_registration stm32x_exec_command_handlers[] = {
+static const struct command_registration stm32f1x_exec_command_handlers[] = {
{
.name = "lock",
.handler = stm32x_handle_lock_command,
COMMAND_REGISTRATION_DONE
};
-static const struct command_registration stm32x_command_handlers[] = {
+static const struct command_registration stm32f1x_command_handlers[] = {
{
.name = "stm32f1x",
.mode = COMMAND_ANY,
.help = "stm32f1x flash command group",
.usage = "",
- .chain = stm32x_exec_command_handlers,
+ .chain = stm32f1x_exec_command_handlers,
},
COMMAND_REGISTRATION_DONE
};
const struct flash_driver stm32f1x_flash = {
.name = "stm32f1x",
- .commands = stm32x_command_handlers,
+ .commands = stm32f1x_command_handlers,
.flash_bank_command = stm32x_flash_bank_command,
.erase = stm32x_erase,
.protect = stm32x_protect,
projects / fw / openocd / blobdiff