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drivers: flash: stm32 qspi driver with read SFDP ID from quadflash

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This commit adds the jedec216 read sfdp and Read ID
function API. The qspi commands are issued to the
quad flash device.

Signed-off-by: Francois Ramu <francois.ramu@st.com>
This commit is contained in:
Francois Ramu 2023-03-28 09:53:15 +02:00 • committed by Fabio Baltieri
commit 06b8f4b994
1 changed files with 57 additions and 2 deletions
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59
drivers/flash/flash_stm32_qspi.c
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@ -91,6 +91,9 @@ struct flash_stm32_qspi_config {
#if STM32_QSPI_RESET_GPIO
const struct gpio_dt_spec reset;
#endif
#if DT_NODE_HAS_PROP(DT_INST(0, st_stm32_qspi_nor), jedec_id)
uint8_t jedec_id[DT_INST_PROP_LEN(0, jedec_id)];
#endif /* jedec_id */
};
struct flash_stm32_qspi_data {
@ -284,12 +287,57 @@ static int qspi_write_access(const struct device *dev, QSPI_CommandTypeDef *cmd,
return dev_data->cmd_status;
}
#if defined(CONFIG_FLASH_JESD216_API)
/*
* Read Serial Flash ID :
* perform a read access over SPI bus for read Identification (DataMode is already set)
* and compare to the jedec-id from the DTYS table exists
*/
static int qspi_read_jedec_id(const struct device *dev, uint8_t *id)
{
struct flash_stm32_qspi_data *dev_data = dev->data;
uint8_t data[JESD216_READ_ID_LEN];
QSPI_CommandTypeDef cmd = {
.Instruction = JESD216_CMD_READ_ID,
.AddressSize = QSPI_ADDRESS_NONE,
.DummyCycles = 8,
.InstructionMode = QSPI_INSTRUCTION_1_LINE,
.AddressMode = QSPI_ADDRESS_1_LINE,
.DataMode = QSPI_DATA_1_LINE,
.NbData = JESD216_READ_ID_LEN,
};
HAL_StatusTypeDef hal_ret;
hal_ret = HAL_QSPI_Command_IT(&dev_data->hqspi, &cmd);
if (hal_ret != HAL_OK) {
LOG_ERR("%d: Failed to send OSPI instruction", hal_ret);
return -EIO;
}
hal_ret = HAL_QSPI_Receive(&dev_data->hqspi, data, HAL_QSPI_TIMEOUT_DEFAULT_VALUE);
if (hal_ret != HAL_OK) {
LOG_ERR("%d: Failed to read data", hal_ret);
return -EIO;
}
dev_data->cmd_status = 0;
id = &data[0];
return 0;
}
#endif /* CONFIG_FLASH_JESD216_API */
/*
* Read Serial Flash Discovery Parameter
*/
static int qspi_read_sfdp(const struct device *dev, off_t addr, uint8_t *data,
static int qspi_read_sfdp(const struct device *dev, off_t addr, void *data,
size_t size)
{
__ASSERT(data != NULL, "null destination");
QSPI_CommandTypeDef cmd = {
.Instruction = JESD216_CMD_READ_SFDP,
.Address = addr,
@ -300,7 +348,7 @@ static int qspi_read_sfdp(const struct device *dev, off_t addr, uint8_t *data,
.DataMode = QSPI_DATA_1_LINE,
};
return qspi_read_access(dev, &cmd, data, size);
return qspi_read_access(dev, &cmd, (uint8_t *)data, size);
}
static bool qspi_address_is_valid(const struct device *dev, off_t addr,
@ -666,6 +714,10 @@ static const struct flash_driver_api flash_stm32_qspi_driver_api = {
#if defined(CONFIG_FLASH_PAGE_LAYOUT)
.page_layout = flash_stm32_qspi_pages_layout,
#endif
#if defined(CONFIG_FLASH_JESD216_API)
.sfdp_read = qspi_read_sfdp,
.read_jedec_id = qspi_read_jedec_id,
#endif /* CONFIG_FLASH_JESD216_API */
};
#if defined(CONFIG_FLASH_PAGE_LAYOUT)
@ -1346,6 +1398,9 @@ static const struct flash_stm32_qspi_config flash_stm32_qspi_cfg = {
#if STM32_QSPI_RESET_GPIO
.reset = GPIO_DT_SPEC_INST_GET(0, reset_gpios),
#endif
#if DT_NODE_HAS_PROP(DT_INST(0, st_stm32_qspi_nor), jedec_id)
.jedec_id = DT_INST_PROP(0, jedec_id),
#endif /* jedec_id */
};
static struct flash_stm32_qspi_data flash_stm32_qspi_dev_data = {