linux/arch/arm/boot/dts/st/stm32h747i-disco.dts

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2025 Amarula Solutions, Dario Binacchi <dario.binacchi@amarulasolutions.com>
 */

/dts-v1/;
#include "stm32h743.dtsi"
#include "stm32h7-pinctrl.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>

/ {
	model = "STMicroelectronics STM32H747i-Discovery board";
	compatible = "st,stm32h747i-disco", "st,stm32h747";

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

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

	aliases {
		serial0 = &usart1;
		serial1 = &uart8;
	};

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

	leds {
		compatible = "gpio-leds";
		led-green {
			gpios = <&gpioi 12 GPIO_ACTIVE_LOW>;
			linux,default-trigger = "heartbeat";
		};
		led-orange {
			gpios = <&gpioi 13 GPIO_ACTIVE_LOW>;
		};
		led-red {
			gpios = <&gpioi 14 GPIO_ACTIVE_LOW>;
		};
		led-blue {
			gpios = <&gpioi 15 GPIO_ACTIVE_LOW>;
		};
	};

	gpio-keys {
		compatible = "gpio-keys";
		autorepeat;
		button-0 {
			label = "User";
			linux,code = <KEY_WAKEUP>;
			gpios = <&gpioc 13 GPIO_ACTIVE_HIGH>;
		};
		button-1 {
			label = "JoySel";
			linux,code = <KEY_ENTER>;
			gpios = <&gpiok 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
		};
		button-2 {
			label = "JoyDown";
			linux,code = <KEY_DOWN>;
			gpios = <&gpiok 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
		};
		button-3 {
			label = "JoyUp";
			linux,code = <KEY_UP>;
			gpios = <&gpiok 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
		};
		button-4 {
			label = "JoyLeft";
			linux,code = <KEY_LEFT>;
			gpios = <&gpiok 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
		};
		button-5 {
			label = "JoyRight";
			linux,code = <KEY_RIGHT>;
			gpios = <&gpiok 5 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
		};
	};
};

&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>;
	cd-gpios = <&gpioi 8 GPIO_ACTIVE_LOW>;
	broken-cd;
	st,neg-edge;
	bus-width = <4>;
	vmmc-supply = <&v3v3>;
	status = "okay";
};

&usart1 {
	pinctrl-0 = <&usart1_pins_b>;
	pinctrl-names = "default";
	status = "okay";
};

&uart8 {
	pinctrl-0 = <&uart8_pins_a>;
	pinctrl-names = "default";
	status = "okay";
};