* http://www.st.com/resource/en/reference_manual/dm00530369.pdf
*/
-/*
- * STM32G0xxx series for reference.
+/* STM32G0xxx series for reference.
*
* RM0444 (STM32G0x1)
* http://www.st.com/resource/en/reference_manual/dm00371828.pdf
* http://www.st.com/resource/en/reference_manual/dm00463896.pdf
*/
-/*
- * STM32G4xxx series for reference.
+/* STM32G4xxx series for reference.
*
* RM0440 (STM32G43x/44x/47x/48x/49x/4Ax)
* http://www.st.com/resource/en/reference_manual/dm00355726.pdf
#define FLASH_ERASE_TIMEOUT 250
+enum stm32l4_flash_reg_index {
+ STM32_FLASH_ACR_INDEX,
+ STM32_FLASH_KEYR_INDEX,
+ STM32_FLASH_OPTKEYR_INDEX,
+ STM32_FLASH_SR_INDEX,
+ STM32_FLASH_CR_INDEX,
+ STM32_FLASH_OPTR_INDEX,
+ STM32_FLASH_WRP1AR_INDEX,
+ STM32_FLASH_WRP1BR_INDEX,
+ STM32_FLASH_WRP2AR_INDEX,
+ STM32_FLASH_WRP2BR_INDEX,
+ STM32_FLASH_REG_INDEX_NUM,
+};
+
+static const uint32_t stm32l4_flash_regs[STM32_FLASH_REG_INDEX_NUM] = {
+ [STM32_FLASH_ACR_INDEX] = 0x000,
+ [STM32_FLASH_KEYR_INDEX] = 0x008,
+ [STM32_FLASH_OPTKEYR_INDEX] = 0x00C,
+ [STM32_FLASH_SR_INDEX] = 0x010,
+ [STM32_FLASH_CR_INDEX] = 0x014,
+ [STM32_FLASH_OPTR_INDEX] = 0x020,
+ [STM32_FLASH_WRP1AR_INDEX] = 0x02C,
+ [STM32_FLASH_WRP1BR_INDEX] = 0x030,
+ [STM32_FLASH_WRP2AR_INDEX] = 0x04C,
+ [STM32_FLASH_WRP2BR_INDEX] = 0x050,
+};
+
struct stm32l4_rev {
const uint16_t rev;
const char *str;
const uint16_t max_flash_size_kb;
const bool has_dual_bank;
const uint32_t flash_regs_base;
+ const uint32_t *default_flash_regs;
const uint32_t fsize_addr;
};
uint32_t user_bank_size;
uint32_t wrpxxr_mask;
const struct stm32l4_part_info *part_info;
+ const uint32_t *flash_regs;
};
-/* human readable list of families this drivers supports */
-static const char *device_families = "STM32L4/L4+/WB/WL/G4/G0";
+/* human readable list of families this drivers supports (sorted alphabetically) */
+static const char *device_families = "STM32G0/G4/L4/L4+/WB/WL";
static const struct stm32l4_rev stm32_415_revs[] = {
{ 0x1000, "1" }, { 0x1001, "2" }, { 0x1003, "3" }, { 0x1007, "4" }
.max_flash_size_kb = 1024,
.has_dual_bank = true,
.flash_regs_base = 0x40022000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 256,
.has_dual_bank = false,
.flash_regs_base = 0x40022000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 128,
.has_dual_bank = false,
.flash_regs_base = 0x40022000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 1024,
.has_dual_bank = true,
.flash_regs_base = 0x40022000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 512,
.has_dual_bank = false,
.flash_regs_base = 0x40022000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 128,
.has_dual_bank = false,
.flash_regs_base = 0x40022000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 64,
.has_dual_bank = false,
.flash_regs_base = 0x40022000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 128,
.has_dual_bank = false,
.flash_regs_base = 0x40022000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 512,
.has_dual_bank = true,
.flash_regs_base = 0x40022000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 2048,
.has_dual_bank = true,
.flash_regs_base = 0x40022000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 1024,
.has_dual_bank = true,
.flash_regs_base = 0x40022000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 512,
.has_dual_bank = false,
.flash_regs_base = 0x40022000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 1024,
.has_dual_bank = false,
.flash_regs_base = 0x58004000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 512,
.has_dual_bank = false,
.flash_regs_base = 0x58004000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
{
.max_flash_size_kb = 256,
.has_dual_bank = false,
.flash_regs_base = 0x58004000,
+ .default_flash_regs = stm32l4_flash_regs,
.fsize_addr = 0x1FFF75E0,
},
};
return stm32l4_info->part_info->flash_regs_base + reg_offset;
}
+static inline uint32_t stm32l4_get_flash_reg_by_index(struct flash_bank *bank,
+ enum stm32l4_flash_reg_index reg_index)
+{
+ struct stm32l4_flash_bank *stm32l4_info = bank->driver_priv;
+ return stm32l4_get_flash_reg(bank, stm32l4_info->flash_regs[reg_index]);
+}
+
static inline int stm32l4_read_flash_reg(struct flash_bank *bank, uint32_t reg_offset, uint32_t *value)
{
return target_read_u32(bank->target, stm32l4_get_flash_reg(bank, reg_offset), value);
}
+static inline int stm32l4_read_flash_reg_by_index(struct flash_bank *bank,
+ enum stm32l4_flash_reg_index reg_index, uint32_t *value)
+{
+ struct stm32l4_flash_bank *stm32l4_info = bank->driver_priv;
+ return stm32l4_read_flash_reg(bank, stm32l4_info->flash_regs[reg_index], value);
+}
+
static inline int stm32l4_write_flash_reg(struct flash_bank *bank, uint32_t reg_offset, uint32_t value)
{
return target_write_u32(bank->target, stm32l4_get_flash_reg(bank, reg_offset), value);
}
+static inline int stm32l4_write_flash_reg_by_index(struct flash_bank *bank,
+ enum stm32l4_flash_reg_index reg_index, uint32_t value)
+{
+ struct stm32l4_flash_bank *stm32l4_info = bank->driver_priv;
+ return stm32l4_write_flash_reg(bank, stm32l4_info->flash_regs[reg_index], value);
+}
+
static int stm32l4_wait_status_busy(struct flash_bank *bank, int timeout)
{
uint32_t status;
/* wait for busy to clear */
for (;;) {
- retval = stm32l4_read_flash_reg(bank, STM32_FLASH_SR, &status);
+ retval = stm32l4_read_flash_reg_by_index(bank, STM32_FLASH_SR_INDEX, &status);
if (retval != ERROR_OK)
return retval;
LOG_DEBUG("status: 0x%" PRIx32 "", status);
/* If this operation fails, we ignore it and report the original
* retval
*/
- stm32l4_write_flash_reg(bank, STM32_FLASH_SR, status & FLASH_ERROR);
+ stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_SR_INDEX, status & FLASH_ERROR);
}
return retval;
/* first check if not already unlocked
* otherwise writing on STM32_FLASH_KEYR will fail
*/
- int retval = stm32l4_read_flash_reg(bank, STM32_FLASH_CR, &ctrl);
+ int retval = stm32l4_read_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX, &ctrl);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
/* unlock flash registers */
- retval = stm32l4_write_flash_reg(bank, STM32_FLASH_KEYR, KEY1);
+ retval = stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_KEYR_INDEX, KEY1);
if (retval != ERROR_OK)
return retval;
- retval = stm32l4_write_flash_reg(bank, STM32_FLASH_KEYR, KEY2);
+ retval = stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_KEYR_INDEX, KEY2);
if (retval != ERROR_OK)
return retval;
- retval = stm32l4_read_flash_reg(bank, STM32_FLASH_CR, &ctrl);
+ retval = stm32l4_read_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX, &ctrl);
if (retval != ERROR_OK)
return retval;
{
uint32_t ctrl;
- int retval = stm32l4_read_flash_reg(bank, STM32_FLASH_CR, &ctrl);
+ int retval = stm32l4_read_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX, &ctrl);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
/* unlock option registers */
- retval = stm32l4_write_flash_reg(bank, STM32_FLASH_OPTKEYR, OPTKEY1);
+ retval = stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_OPTKEYR_INDEX, OPTKEY1);
if (retval != ERROR_OK)
return retval;
- retval = stm32l4_write_flash_reg(bank, STM32_FLASH_OPTKEYR, OPTKEY2);
+ retval = stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_OPTKEYR_INDEX, OPTKEY2);
if (retval != ERROR_OK)
return retval;
- retval = stm32l4_read_flash_reg(bank, STM32_FLASH_CR, &ctrl);
+ retval = stm32l4_read_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX, &ctrl);
if (retval != ERROR_OK)
return retval;
if (retval != ERROR_OK)
goto err_lock;
- retval = stm32l4_write_flash_reg(bank, STM32_FLASH_CR, FLASH_OPTSTRT);
+ retval = stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX, FLASH_OPTSTRT);
if (retval != ERROR_OK)
goto err_lock;
retval = stm32l4_wait_status_busy(bank, FLASH_ERASE_TIMEOUT);
err_lock:
- retval2 = stm32l4_write_flash_reg(bank, STM32_FLASH_CR, FLASH_LOCK | FLASH_OPTLOCK);
+ retval2 = stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX, FLASH_LOCK | FLASH_OPTLOCK);
if (retval != ERROR_OK)
return retval;
struct stm32l4_flash_bank *stm32l4_info = bank->driver_priv;
uint32_t wrp1ar, wrp1br, wrp2ar, wrp2br;
- stm32l4_read_flash_reg(bank, STM32_FLASH_WRP1AR, &wrp1ar);
- stm32l4_read_flash_reg(bank, STM32_FLASH_WRP1BR, &wrp1br);
+ stm32l4_read_flash_reg_by_index(bank, STM32_FLASH_WRP1AR_INDEX, &wrp1ar);
+ stm32l4_read_flash_reg_by_index(bank, STM32_FLASH_WRP1BR_INDEX, &wrp1br);
if (stm32l4_info->part_info->has_dual_bank) {
- stm32l4_read_flash_reg(bank, STM32_FLASH_WRP2AR, &wrp2ar);
- stm32l4_read_flash_reg(bank, STM32_FLASH_WRP2BR, &wrp2br);
+ stm32l4_read_flash_reg_by_index(bank, STM32_FLASH_WRP2AR_INDEX, &wrp2ar);
+ stm32l4_read_flash_reg_by_index(bank, STM32_FLASH_WRP2BR_INDEX, &wrp2br);
} else {
/* prevent uninitialized errors */
wrp2ar = 0;
erase_flags |= snb << FLASH_PAGE_SHIFT | FLASH_CR_BKER;
} else
erase_flags |= i << FLASH_PAGE_SHIFT;
- retval = stm32l4_write_flash_reg(bank, STM32_FLASH_CR, erase_flags);
+ retval = stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX, erase_flags);
if (retval != ERROR_OK)
break;
}
err_lock:
- retval2 = stm32l4_write_flash_reg(bank, STM32_FLASH_CR, FLASH_LOCK);
+ retval2 = stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX, FLASH_LOCK);
if (retval != ERROR_OK)
return retval;
reg_value = ((last & 0xFF) << 16) | begin;
}
- ret = stm32l4_write_option(bank, STM32_FLASH_WRP2AR, reg_value, 0xffffffff);
+ ret = stm32l4_write_option(bank, stm32l4_info->flash_regs[STM32_FLASH_WRP2AR_INDEX], reg_value, 0xffffffff);
}
/* Bank 1 */
reg_value = 0xFF; /* Default to bank un-protected */
reg_value = (end << 16) | (first & 0xFF);
}
- ret = stm32l4_write_option(bank, STM32_FLASH_WRP1AR, reg_value, 0xffffffff);
+ ret = stm32l4_write_option(bank, stm32l4_info->flash_regs[STM32_FLASH_WRP1AR_INDEX], reg_value, 0xffffffff);
}
return ret;
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);
- buf_set_u32(reg_params[4].value, 0, 32, stm32l4_get_flash_reg(bank, STM32_FLASH_SR));
- buf_set_u32(reg_params[5].value, 0, 32, stm32l4_get_flash_reg(bank, STM32_FLASH_CR));
+ buf_set_u32(reg_params[4].value, 0, 32, stm32l4_get_flash_reg_by_index(bank, STM32_FLASH_SR_INDEX));
+ buf_set_u32(reg_params[5].value, 0, 32, stm32l4_get_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX));
retval = target_run_flash_async_algorithm(target, buffer, count, 8,
0, NULL,
if (error != 0) {
LOG_ERROR("flash write failed = %08" PRIx32, error);
/* Clear but report errors */
- stm32l4_write_flash_reg(bank, STM32_FLASH_SR, error);
+ stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_SR_INDEX, error);
retval = ERROR_FAIL;
}
}
retval = stm32l4_write_block(bank, buffer, offset, count / 8);
err_lock:
- retval2 = stm32l4_write_flash_reg(bank, STM32_FLASH_CR, FLASH_LOCK);
+ retval2 = stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX, FLASH_LOCK);
if (retval != ERROR_OK) {
LOG_ERROR("block write failed");
}
part_info = stm32l4_info->part_info;
+ stm32l4_info->flash_regs = stm32l4_info->part_info->default_flash_regs;
char device_info[1024];
retval = bank->driver->info(bank, device_info, sizeof(device_info));
assert((flash_size_kb != 0xffff) && flash_size_kb);
/* read flash option register */
- retval = stm32l4_read_flash_reg(bank, STM32_FLASH_OPTR, &options);
+ retval = stm32l4_read_flash_reg_by_index(bank, STM32_FLASH_OPTR_INDEX, &options);
if (retval != ERROR_OK)
return retval;
if (retval != ERROR_OK)
goto err_lock;
- retval = stm32l4_write_flash_reg(bank, STM32_FLASH_CR, action);
+ retval = stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX, action);
if (retval != ERROR_OK)
goto err_lock;
- retval = stm32l4_write_flash_reg(bank, STM32_FLASH_CR, action | FLASH_STRT);
+ retval = stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX, action | FLASH_STRT);
if (retval != ERROR_OK)
goto err_lock;
retval = stm32l4_wait_status_busy(bank, FLASH_ERASE_TIMEOUT);
err_lock:
- retval2 = stm32l4_write_flash_reg(bank, STM32_FLASH_CR, FLASH_LOCK);
+ retval2 = stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX, FLASH_LOCK);
if (retval != ERROR_OK)
return retval;
* "Note: If the read protection is set while the debugger is still
* connected through JTAG/SWD, apply a POR (power-on reset) instead of a system reset."
*/
- retval = stm32l4_write_flash_reg(bank, STM32_FLASH_CR, FLASH_OBL_LAUNCH);
+ retval = stm32l4_write_flash_reg_by_index(bank, STM32_FLASH_CR_INDEX, FLASH_OBL_LAUNCH);
command_print(CMD, "stm32l4x option load completed. Power-on reset might be required");
}
/* set readout protection level 1 by erasing the RDP option byte */
- if (stm32l4_write_option(bank, STM32_FLASH_OPTR, 0, 0x000000FF) != ERROR_OK) {
+ struct stm32l4_flash_bank *stm32l4_info = bank->driver_priv;
+ if (stm32l4_write_option(bank, stm32l4_info->flash_regs[STM32_FLASH_OPTR_INDEX], 0, 0x000000FF) != ERROR_OK) {
command_print(CMD, "%s failed to lock device", bank->driver->name);
return ERROR_OK;
}
return ERROR_TARGET_NOT_HALTED;
}
- if (stm32l4_write_option(bank, STM32_FLASH_OPTR, RDP_LEVEL_0, 0x000000FF) != ERROR_OK) {
+ struct stm32l4_flash_bank *stm32l4_info = bank->driver_priv;
+ if (stm32l4_write_option(bank, stm32l4_info->flash_regs[STM32_FLASH_OPTR_INDEX],
+ RDP_LEVEL_0, 0x000000FF) != ERROR_OK) {
command_print(CMD, "%s failed to unlock device", bank->driver->name);
return ERROR_OK;
}