boards: mcxw71: Enable spi nor flash

Add support for the on board spi nor flash

Signed-off-by: Declan Snyder <[email protected]>

Author: decsny

boards/nxp/frdm_mcxw71/frdm_mcxw71-pinctrl.dtsi

@@ -55,7 +55,9 @@
 	pinmux_lpspi1: pinmux_lpspi1 {
 		group0 {
 			pinmux = <LPSPI1_SIN_PTB1>,
-				 <LPSPI1_SOUT_PTB3>;
+				 <LPSPI1_SCK_PTB2>,
+				 <LPSPI1_SOUT_PTB3>,
+				 <LPSPI1_PCS0_PTB0>;
 			slew-rate = "fast";
 			drive-strength = "low";
 		};

boards/nxp/frdm_mcxw71/frdm_mcxw71.dts

@@ -95,6 +95,28 @@
 	status = "okay";
 	pinctrl-0 = <&pinmux_lpspi1>;
 	pinctrl-names = "default";
+	pcs-sck-delay = <5>;
+	sck-pcs-delay = <5>;
+	transfer-delay = <125>;
+
+	mx25r6435fm2il0: flash@0 {
+		compatible = "jedec,spi-nor";
+		jedec-id = [c2 28 17];
+		reg = <0>;
+		/* only wp-gpio on default board configuration,
+		 * there is a reset gpio line but the line is
+		 * DNP by default on the board (R4 on schematic)
+		 */
+		wp-gpios = <&gpioc 0 GPIO_ACTIVE_LOW>;
+		size = <DT_SIZE_M(64)>;
+		has-dpd;
+		dpd-wakeup-sequence = <30000 20 35000>;
+		t-enter-dpd = <10000>;
+		/* this is the default (reset) mode for this flash */
+		mxicy,mx25r-power-mode = "low-power";
+		/* 8 MHz for low power mode */
+		spi-max-frequency = <8000000>;
+	};
 };
 
 &flash {