drivers: flash: flash_mcux_flexspi_nor: Add support for memory W25Q256

davidmissael · davidmissael · commit 00cf85dcaecf · 2026-03-16T11:02:55.000-06:00
Memory W25Q256 support added into flash driver. If someone
uses this memory, the driver will configured into 4-bytes
address mode which will cause issues with the bootROM for
some NXP's RTs/RW microcontrollers.

Signed-off-by: Missael Maciel &lt;davidmissael.maciel@nxp.com&gt;
diff --git a/drivers/flash/flash_mcux_flexspi_nor.c b/drivers/flash/flash_mcux_flexspi_nor.c
@@ -1357,6 +1357,7 @@ static int flash_flexspi_nor_check_jedec(struct flash_flexspi_nor_data *data,
 		}
 		/* Still return an error- we want the JEDEC configuration to run */
 		return -ENOTSUP;
+	case 0x1940ef: /* W25Q256JV-IQ/IN flash, uses identical LUT than W25Q512JV*/
 	case 0x2040ef:
 		/* W25Q512JV-IQ/IN flash, use 4 byte read/write */
 		flexspi_lut[READ][0] = FLEXSPI_LUT_SEQ(

Original file line number	Diff line number	Diff line change
`@@ -1357,6 +1357,7 @@ static int flash_flexspi_nor_check_jedec(struct flash_flexspi_nor_data *data,`
`1357`	`1357`	`}`
`1358`	`1358`	`/* Still return an error- we want the JEDEC configuration to run */`
`1359`	`1359`	`return -ENOTSUP;`
	`1360`	`+ case 0x1940ef: /* W25Q256JV-IQ/IN flash, uses identical LUT than W25Q512JV*/`
`1360`	`1361`	`case 0x2040ef:`
`1361`	`1362`	`/* W25Q512JV-IQ/IN flash, use 4 byte read/write */`
`1362`	`1363`	`flexspi_lut[READ][0] = FLEXSPI_LUT_SEQ(`