+/*
+ * EEPROM
+ */
+
+struct psoc5lp_eeprom_flash_bank {
+ bool probed;
+ const struct psoc5lp_device *device;
+};
+
+static int psoc5lp_eeprom_erase(struct flash_bank *bank, int first, int last)
+{
+ int i, retval;
+
+ for (i = first; i <= last; i++) {
+ retval = psoc5lp_spc_erase_sector(bank->target,
+ SPC_ARRAY_EEPROM, i);
+ if (retval != ERROR_OK)
+ return retval;
+ }
+
+ return ERROR_OK;
+}
+
+static int psoc5lp_eeprom_write(struct flash_bank *bank,
+ const uint8_t *buffer, uint32_t offset, uint32_t byte_count)
+{
+ struct target *target = bank->target;
+ uint8_t temp[2];
+ unsigned row;
+ int retval;
+
+ if (offset % EEPROM_ROW_SIZE != 0) {
+ LOG_ERROR("Writes must be row-aligned, got offset 0x%08" PRIx32,
+ offset);
+ return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
+ }
+
+ retval = psoc5lp_spc_get_temp(target, 3, temp);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Unable to read Die temperature");
+ return retval;
+ }
+ LOG_DEBUG("Get_Temp: sign 0x%02" PRIx8 ", magnitude 0x%02" PRIx8,
+ temp[0], temp[1]);
+
+ for (row = offset / EEPROM_ROW_SIZE; byte_count >= EEPROM_ROW_SIZE; row++) {
+ retval = psoc5lp_spc_load_row(target, SPC_ARRAY_EEPROM,
+ buffer, EEPROM_ROW_SIZE);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = psoc5lp_spc_write_row(target, SPC_ARRAY_EEPROM,
+ row, temp);
+ if (retval != ERROR_OK)
+ return retval;
+
+ buffer += EEPROM_ROW_SIZE;
+ byte_count -= EEPROM_ROW_SIZE;
+ offset += EEPROM_ROW_SIZE;
+ }
+ if (byte_count > 0) {
+ uint8_t buf[EEPROM_ROW_SIZE];
+
+ memcpy(buf, buffer, byte_count);
+ memset(buf + byte_count, bank->default_padded_value,
+ EEPROM_ROW_SIZE - byte_count);
+
+ LOG_DEBUG("Padding %d bytes", EEPROM_ROW_SIZE - byte_count);
+ retval = psoc5lp_spc_load_row(target, SPC_ARRAY_EEPROM,
+ buf, EEPROM_ROW_SIZE);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = psoc5lp_spc_write_row(target, SPC_ARRAY_EEPROM,
+ row, temp);
+ if (retval != ERROR_OK)
+ return retval;
+ }
+
+ return ERROR_OK;
+}
+
+static int psoc5lp_eeprom_protect_check(struct flash_bank *bank)
+{
+ int i;
+
+ for (i = 0; i < bank->num_sectors; i++)
+ bank->sectors[i].is_protected = -1;
+
+ return ERROR_OK;
+}
+
+static int psoc5lp_eeprom_get_info_command(struct flash_bank *bank, char *buf, int buf_size)
+{
+ struct psoc5lp_eeprom_flash_bank *psoc_eeprom_bank = bank->driver_priv;
+ char part_number[PART_NUMBER_LEN];
+
+ psoc5lp_get_part_number(psoc_eeprom_bank->device, part_number);
+
+ snprintf(buf, buf_size, "%s", part_number);
+
+ return ERROR_OK;
+}
+
+static int psoc5lp_eeprom_probe(struct flash_bank *bank)
+{
+ struct psoc5lp_eeprom_flash_bank *psoc_eeprom_bank = bank->driver_priv;
+ uint32_t flash_addr = bank->base;
+ uint32_t val;
+ int i, retval;
+
+ if (psoc_eeprom_bank->probed)
+ return ERROR_OK;
+
+ if (bank->target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ retval = psoc5lp_find_device(bank->target, &psoc_eeprom_bank->device);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = target_read_u32(bank->target, PM_ACT_CFG12, &val);
+ if (retval != ERROR_OK)
+ return retval;
+ if (!(val & PM_ACT_CFG12_EN_EE)) {
+ val |= PM_ACT_CFG12_EN_EE;
+ retval = target_write_u32(bank->target, PM_ACT_CFG12, val);
+ if (retval != ERROR_OK)
+ return retval;
+ }
+
+ bank->size = psoc_eeprom_bank->device->eeprom_kb * 1024;
+ bank->num_sectors = DIV_ROUND_UP(bank->size, EEPROM_SECTOR_SIZE);
+ bank->sectors = calloc(bank->num_sectors,
+ sizeof(struct flash_sector));
+ for (i = 0; i < bank->num_sectors; i++) {
+ bank->sectors[i].size = EEPROM_SECTOR_SIZE;
+ bank->sectors[i].offset = flash_addr - bank->base;
+ bank->sectors[i].is_erased = -1;
+ bank->sectors[i].is_protected = -1;
+
+ flash_addr += bank->sectors[i].size;
+ }
+
+ bank->default_padded_value = bank->erased_value = 0x00;
+
+ psoc_eeprom_bank->probed = true;
+
+ return ERROR_OK;
+}
+
+static int psoc5lp_eeprom_auto_probe(struct flash_bank *bank)
+{
+ struct psoc5lp_eeprom_flash_bank *psoc_eeprom_bank = bank->driver_priv;
+
+ if (psoc_eeprom_bank->probed)
+ return ERROR_OK;
+
+ return psoc5lp_eeprom_probe(bank);
+}
+
+FLASH_BANK_COMMAND_HANDLER(psoc5lp_eeprom_flash_bank_command)
+{
+ struct psoc5lp_eeprom_flash_bank *psoc_eeprom_bank;
+
+ psoc_eeprom_bank = malloc(sizeof(struct psoc5lp_eeprom_flash_bank));
+ if (!psoc_eeprom_bank)
+ return ERROR_FLASH_OPERATION_FAILED;
+
+ psoc_eeprom_bank->probed = false;
+ psoc_eeprom_bank->device = NULL;
+
+ bank->driver_priv = psoc_eeprom_bank;
+
+ return ERROR_OK;
+}
+
+static const struct command_registration psoc5lp_eeprom_exec_command_handlers[] = {
+ COMMAND_REGISTRATION_DONE
+};
+
+static const struct command_registration psoc5lp_eeprom_command_handlers[] = {
+ {
+ .name = "psoc5lp_eeprom",
+ .mode = COMMAND_ANY,
+ .help = "PSoC 5LP EEPROM command group",
+ .usage = "",
+ .chain = psoc5lp_eeprom_exec_command_handlers,
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+struct flash_driver psoc5lp_eeprom_flash = {
+ .name = "psoc5lp_eeprom",
+ .commands = psoc5lp_eeprom_command_handlers,
+ .flash_bank_command = psoc5lp_eeprom_flash_bank_command,
+ .info = psoc5lp_eeprom_get_info_command,
+ .probe = psoc5lp_eeprom_probe,
+ .auto_probe = psoc5lp_eeprom_auto_probe,
+ .protect_check = psoc5lp_eeprom_protect_check,
+ .read = default_flash_read,
+ .erase = psoc5lp_eeprom_erase,
+ .erase_check = default_flash_blank_check,
+ .write = psoc5lp_eeprom_write,
+};
+
Code Review / openocd.git / commitdiff