u-boot/arch/arm/dts/imx28-xea.dts

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright 2019
 * Lukasz Majewski, DENX Software Engineering, lukma@denx.de
 *
 * SPDX-License-Identifier:     GPL-2.0+ or X11
 *
 */

/dts-v1/;

#include "imx28.dtsi"

/ {
	model = "Liebherr (LWE) XEA i.MX28 Board";
	compatible = "lwe,xea", "fsl,imx28";

	aliases {
		spi3 = &ssp3;
	};

	memory@40000000 {
		device_type = "memory";
		reg = <0x40000000 0x10000000>;
	};

	reg_3p3v: regulator-3p3v {
		compatible = "regulator-fixed";
		regulator-name = "3P3V";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};

	reg_fec_3v3: regulator-fec-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "fec-3v3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		gpio = <&gpio0 0 GPIO_ACTIVE_HIGH>;
		enable-active-high;
		regulator-boot-on;
	};
};

&mac0 {
	phy-mode = "rmii";
	pinctrl-names = "default";
	pinctrl-0 = <&mac0_pins_a>;
	phy-supply = <&reg_fec_3v3>;
	phy-reset-gpios = <&gpio2 13 GPIO_ACTIVE_LOW>;
	phy-reset-duration = <1>;
	phy-reset-post-delay = <1>;
	status = "okay";

	fixed-link {
	      speed = <100>;
	      full-duplex;
	};
};

&ssp0 {
	compatible = "fsl,imx28-mmc";
	pinctrl-names = "default";
	pinctrl-0 = <&mmc0_8bit_pins_a>;
	bus-width = <8>;
	vmmc-supply = <&reg_3p3v>;
	non-removable;
	status = "okay";
};

&ssp3 {
	#address-cells = <1>;
	#size-cells = <0>;
	compatible = "fsl,imx28-spi";
	pinctrl-names = "default";
	pinctrl-0 = <&spi3_pins_b>;
	status = "okay";
	spi-max-frequency = <40000000>;
	num-cs = <2>;

	flash0: s25fl256s@0 {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "jedec,spi-nor";
		spi-max-frequency = <40000000>;
		reg = <0>;

		partition@0 {
			label = "SPL (spi)";
			reg = <0x0 0x10000>;
			read-only;
		};
		partition@1 {
			label = "u-boot (spi)";
			reg = <0x10000 0x70000>;
			read-only;
		};
		partition@2 {
			label = "uboot-env (spi)";
			reg = <0x80000 0x20000>;
		};
		partition@3 {
			label = "kernel (spi)";
			reg = <0x100000 0x400000>;
		};
		partition@4 {
			label = "swupdate (spi)";
			reg = <0x50000 0x800000>;
		};
	};
};