u-boot/arch/arm/dts/stm32h743i-disco.dts

// SPDX-License-Identifier: GPL-2.0+ OR X11
/*
 * Copyright 2017 - Patrice Chotard <patrice.chotard@foss.st.com>
 *
 */

/dts-v1/;
#include "stm32h743.dtsi"
#include "stm32h7-pinctrl.dtsi"

/ {
	model = "STMicroelectronics STM32H743i-Discovery board";
	compatible = "st,stm32h743i-disco", "st,stm32h743";

	chosen {
		bootargs = "root=/dev/ram";
		stdout-path = "serial0:115200n8";
	};

	memory@d0000000 {
		device_type = "memory";
		reg = <0xd0000000 0x2000000>;
	};

	aliases {
		serial0 = &usart2;
	};

	v3v3: regulator-v3v3 {
		compatible = "regulator-fixed";
		regulator-name = "v3v3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};
};

&clk_hse {
	clock-frequency = <25000000>;
};

&mac {
	status = "disabled";
	pinctrl-0	= <&ethernet_rmii>;
	pinctrl-names	= "default";
	phy-mode	= "rmii";
	phy-handle	= <&phy0>;

	mdio0 {
		#address-cells = <1>;
		#size-cells = <0>;
		compatible = "snps,dwmac-mdio";
		phy0: ethernet-phy@0 {
			reg = <0>;
		};
	};
};

&sdmmc1 {
	pinctrl-names = "default", "opendrain", "sleep";
	pinctrl-0 = <&sdmmc1_b4_pins_a>;
	pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
	pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>;
	broken-cd;
	st,neg-edge;
	bus-width = <4>;
	vmmc-supply = <&v3v3>;
	status = "okay";
};

&usart2 {
	pinctrl-0 = <&usart2_pins>;
	pinctrl-names = "default";
	status = "okay";
};