diff --git a/boards/nxp/mimxrt595_evk/mimxrt595_evk_mimxrt595s_cm33.dts b/boards/nxp/mimxrt595_evk/mimxrt595_evk_mimxrt595s_cm33.dts
index 463e6729ade62..f92a4f529b758 100644
--- a/boards/nxp/mimxrt595_evk/mimxrt595_evk_mimxrt595s_cm33.dts
+++ b/boards/nxp/mimxrt595_evk/mimxrt595_evk_mimxrt595s_cm33.dts
@@ -400,7 +400,7 @@ zephyr_udc0: &usbhs {
 		/* MX25UM51245G is 64MB, 512MBit flash part */
 		size = <DT_SIZE_M(64 * 8)>;
 		reg = <0>;
-		spi-max-frequency = <DT_FREQ_M(200)>;
+		spi-max-frequency = <DT_FREQ_M(120)>;
 		status = "okay";
 		jedec-id = [c2 81 3a];
 		erase-block-size = <DT_SIZE_K(4)>;
diff --git a/boards/nxp/mimxrt685_evk/mimxrt685_evk_mimxrt685s_cm33.dts b/boards/nxp/mimxrt685_evk/mimxrt685_evk_mimxrt685s_cm33.dts
index 267691eaea7bb..c6399ba494a00 100644
--- a/boards/nxp/mimxrt685_evk/mimxrt685_evk_mimxrt685s_cm33.dts
+++ b/boards/nxp/mimxrt685_evk/mimxrt685_evk_mimxrt685s_cm33.dts
@@ -265,7 +265,7 @@ i2s1: &flexcomm3 {
 		/* MX25UM51245G is 64MB, 512MBit flash part */
 		size = <DT_SIZE_M(64 * 8)>;
 		reg = <2>;
-		spi-max-frequency = <DT_FREQ_M(200)>;
+		spi-max-frequency = <DT_FREQ_M(120)>;
 		status = "okay";
 		jedec-id = [c2 81 3a];
 		erase-block-size = <DT_SIZE_K(4)>;
diff --git a/boards/nxp/vmu_rt1170/vmu_rt1170.dtsi b/boards/nxp/vmu_rt1170/vmu_rt1170.dtsi
index 900f46e955868..a18e6003c996b 100644
--- a/boards/nxp/vmu_rt1170/vmu_rt1170.dtsi
+++ b/boards/nxp/vmu_rt1170/vmu_rt1170.dtsi
@@ -205,7 +205,7 @@
 		/* MX25UM51245G is 64MB, 512MBit flash part */
 		size = <DT_SIZE_M(64 * 8)>;
 		reg = <0>;
-		spi-max-frequency = <DT_FREQ_M(200)>;
+		spi-max-frequency = <DT_FREQ_M(120)>;
 		status = "okay";
 		jedec-id = [c2 81 3a];
 		erase-block-size = <DT_SIZE_K(4)>;
diff --git a/drivers/flash/flash_mcux_flexspi_mx25um51345g.c b/drivers/flash/flash_mcux_flexspi_mx25um51345g.c
index d017c8778b596..fc712f12489a9 100644
--- a/drivers/flash/flash_mcux_flexspi_mx25um51345g.c
+++ b/drivers/flash/flash_mcux_flexspi_mx25um51345g.c
@@ -105,6 +105,7 @@ static const uint32_t flash_flexspi_nor_lut[][4] = {
 		FLEXSPI_LUT_SEQ(kFLEXSPI_Command_READ_SDR,	kFLEXSPI_8PAD, 0x04,
 				kFLEXSPI_Command_STOP,		kFLEXSPI_1PAD, 0x0),
 	},
+
 	[WRITE_ENABLE_OPI] = {
 		FLEXSPI_LUT_SEQ(kFLEXSPI_Command_SDR,		kFLEXSPI_8PAD, 0x06,
 				kFLEXSPI_Command_SDR,		kFLEXSPI_8PAD, 0xF9),
@@ -142,7 +143,9 @@ static const uint32_t flash_flexspi_nor_lut[][4] = {
 		FLEXSPI_LUT_SEQ(kFLEXSPI_Command_DDR,		kFLEXSPI_8PAD, 0x05,
 				kFLEXSPI_Command_DDR,		kFLEXSPI_8PAD, 0xFA),
 		FLEXSPI_LUT_SEQ(kFLEXSPI_Command_RADDR_DDR,	kFLEXSPI_8PAD, 0x20,
-				kFLEXSPI_Command_READ_DDR,	kFLEXSPI_8PAD, 0x4),
+				kFLEXSPI_Command_DUMMY_DDR,	kFLEXSPI_8PAD, 0x28),
+		FLEXSPI_LUT_SEQ(kFLEXSPI_Command_READ_DDR,	kFLEXSPI_8PAD, 0x4,
+				kFLEXSPI_Command_STOP,		kFLEXSPI_1PAD, 0x0),
 	},
 
 	[WRITE_ENABLE_OPI] = {
@@ -159,14 +162,14 @@ static const uint32_t flash_flexspi_nor_lut[][4] = {
 
 	[ERASE_CHIP] = {
 		FLEXSPI_LUT_SEQ(kFLEXSPI_Command_DDR,		kFLEXSPI_8PAD, 0x60,
-				kFLEXSPI_Command_SDR,		kFLEXSPI_8PAD, 0x9F),
+				kFLEXSPI_Command_DDR,		kFLEXSPI_8PAD, 0x9F),
 	},
 
 	[READ] = {
 		FLEXSPI_LUT_SEQ(kFLEXSPI_Command_DDR,		kFLEXSPI_8PAD, 0xEE,
 				kFLEXSPI_Command_DDR,		kFLEXSPI_8PAD, 0x11),
 		FLEXSPI_LUT_SEQ(kFLEXSPI_Command_RADDR_DDR,	kFLEXSPI_8PAD, 0x20,
-				kFLEXSPI_Command_DUMMY_DDR,	kFLEXSPI_8PAD, 0x08),
+				kFLEXSPI_Command_DUMMY_DDR,	kFLEXSPI_8PAD, 0x28),
 		FLEXSPI_LUT_SEQ(kFLEXSPI_Command_READ_DDR,	kFLEXSPI_8PAD, 0x04,
 				kFLEXSPI_Command_STOP,		kFLEXSPI_1PAD, 0x0),
 	},
@@ -597,7 +600,8 @@ static DEVICE_API(flash, flash_flexspi_nor_api) = {
 
 #define FLASH_FLEXSPI_DEVICE_CONFIG(n)					\
 	{								\
-		.flexspiRootClk = MHZ(120),				\
+		.flexspiRootClk =					\
+			DT_INST_PROP_OR(n, spi_max_frequency, MHZ(200)),\
 		.flashSize = DT_INST_PROP(n, size) / 8 / KB(1),		\
 		.CSIntervalUnit =					\
 			CS_INTERVAL_UNIT(				\