diff --git a/boards/nxp/rd_rw612_bga/doc/index.rst b/boards/nxp/rd_rw612_bga/doc/index.rst
index c31df4ab448..dae43dd8aea 100644
--- a/boards/nxp/rd_rw612_bga/doc/index.rst
+++ b/boards/nxp/rd_rw612_bga/doc/index.rst
@@ -45,7 +45,7 @@ Supported Features
 +-----------+------------+-----------------------------------+
 | I2C       | on-chip    | i2c                               |
 +-----------+------------+-----------------------------------+
-| FLEXSPI   | on-chip    | flash                             |
+| FLEXSPI   | on-chip    | flash/memc                        |
 +-----------+------------+-----------------------------------+
 | TRNG      | on-chip    | entropy                           |
 +-----------+------------+-----------------------------------+
diff --git a/boards/nxp/rd_rw612_bga/rd_rw612_bga-pinctrl.dtsi b/boards/nxp/rd_rw612_bga/rd_rw612_bga-pinctrl.dtsi
index 04140e2a68c..db565403583 100644
--- a/boards/nxp/rd_rw612_bga/rd_rw612_bga-pinctrl.dtsi
+++ b/boards/nxp/rd_rw612_bga/rd_rw612_bga-pinctrl.dtsi
@@ -70,5 +70,21 @@
 			slew-rate = "ultra";
 			bias-pull-down;
 		};
+
+		group2 {
+			pinmux = <IO_MUX_QUAD_SPI_PSRAM_IO35
+				IO_MUX_QUAD_SPI_PSRAM_IO36
+				IO_MUX_QUAD_SPI_PSRAM_IO38
+				IO_MUX_QUAD_SPI_PSRAM_IO39
+				IO_MUX_QUAD_SPI_PSRAM_IO40
+				IO_MUX_QUAD_SPI_PSRAM_IO41>;
+			slew-rate = "normal";
+		};
+
+		group3 {
+			pinmux = <IO_MUX_QUAD_SPI_PSRAM_IO37>;
+			slew-rate = "normal";
+			bias-pull-down;
+		};
 	};
 };
diff --git a/boards/nxp/rd_rw612_bga/rd_rw612_bga.dtsi b/boards/nxp/rd_rw612_bga/rd_rw612_bga.dtsi
index a9f52c885e3..21872376294 100644
--- a/boards/nxp/rd_rw612_bga/rd_rw612_bga.dtsi
+++ b/boards/nxp/rd_rw612_bga/rd_rw612_bga.dtsi
@@ -116,6 +116,7 @@ arduino_i2c: &flexcomm2 {
 	ahb-cacheable;
 	ahb-read-addr-opt;
 	rx-clock-source = <1>;
+	rx-clock-source-b = <3>;
 	pinctrl-0 = <&pinmux_flexspi>;
 	pinctrl-names = "default";
 	status = "okay";
@@ -156,6 +157,25 @@ arduino_i2c: &flexcomm2 {
 			};
 		};
 	};
+	is66wvq8m4: is66wvq8m4@2 {
+		compatible = "nxp,imx-flexspi-is66wvq8m4";
+		/* IS66WVQ8M4 is 4MB, 32MBit pSRAM */
+		size = <DT_SIZE_M(32)>;
+		reg = <2>;
+		spi-max-frequency = <256000000>;
+		/* PSRAM cannot be enabled while board is in default XIP
+		 * configuration, as it will conflict with flash chip.
+		 */
+		status = "disabled";
+		cs-interval-unit = <1>;
+		cs-interval = <5>;
+		cs-hold-time = <2>;
+		cs-setup-time = <3>;
+		data-valid-time = <1>;
+		column-space = <14>;
+		ahb-write-wait-unit = <2>;
+		ahb-write-wait-interval = <0>;
+	};
 };
 
 &dmic0 {