linux-kernel/linux-7.2.3/arch/arm64/boot/dts/st/stm32mp257f-dk.dts

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
/*
 * Copyright (C) STMicroelectronics 2025 - All Rights Reserved
 * Author: Alexandre Torgue <alexandre.torgue@foss.st.com> for STMicroelectronics.
 */

/dts-v1/;

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
#include "stm32mp257.dtsi"
#include "stm32mp25xf.dtsi"
#include "stm32mp25-pinctrl.dtsi"
#include "stm32mp25xxak-pinctrl.dtsi"

/ {
	model = "STMicroelectronics STM32MP257F-DK Discovery Board";
	compatible = "st,stm32mp257f-dk", "st,stm32mp257";

	aliases {
		ethernet0 = &ethernet1;
		serial0 = &usart2;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	gpio-keys {
		compatible = "gpio-keys";

		button-user-1 {
			label = "User-1";
			linux,code = <BTN_1>;
			gpios = <&gpioc 5 GPIO_ACTIVE_HIGH>;
		};

		button-user-2 {
			label = "User-2";
			linux,code = <BTN_2>;
			gpios = <&gpioc 11 GPIO_ACTIVE_HIGH>;
		};
	};

	gpio-leds {
		compatible = "gpio-leds";

		led_blue: led-blue {
			function = LED_FUNCTION_HEARTBEAT;
			color = <LED_COLOR_ID_BLUE>;
			gpios = <&gpioh 7 GPIO_ACTIVE_HIGH>;
			linux,default-trigger = "heartbeat";
			default-state = "off";
		};

		led-green {
			color = <LED_COLOR_ID_GREEN>;
			gpios = <&gpioh 5 GPIO_ACTIVE_HIGH>;
		};

		led-orange {
			color = <LED_COLOR_ID_ORANGE>;
			gpios = <&gpioh 6 GPIO_ACTIVE_HIGH>;
		};
	};

	lpddr_channel: sdram-channel-0 {
		#address-cells = <1>;
		#size-cells = <0>;
		compatible = "jedec,lpddr4-channel";
		io-width = <32>;
	};

	memory@80000000 {
		device_type = "memory";
		reg = <0x0 0x80000000 0x1 0x0>;
	};

	options {
		u-boot {
			compatible = "u-boot,config";
			boot-led = <&led_blue>;
		};
	};

	panel_lvds: display {
		compatible = "edt,etml0700z9ndha", "panel-lvds";
		enable-gpios = <&gpioi 4 GPIO_ACTIVE_HIGH>;
		backlight = <&panel_lvds_backlight>;
		power-supply = <&scmi_v3v3>;
		width-mm = <156>;
		height-mm = <92>;
		data-mapping = "vesa-24";
		status = "okay";

		panel-timing {
			clock-frequency = <54000000>;
			hactive = <1024>;
			vactive = <600>;
			hfront-porch = <150>;
			hback-porch = <150>;
			hsync-len = <21>;
			vfront-porch = <24>;
			vback-porch = <24>;
			vsync-len = <21>;
		};

		port {
			lvds_panel_in: endpoint {
				remote-endpoint = <&lvds_out0>;
			};
		};
	};

	panel_lvds_backlight: backlight {
		compatible = "gpio-backlight";
		gpios = <&gpioi 4 GPIO_ACTIVE_HIGH>;
		default-on;
		status = "okay";
	};

	reserved-memory {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		fw@80000000 {
			compatible = "shared-dma-pool";
			reg = <0x0 0x80000000 0x0 0x4000000>;
			no-map;
		};
	};
};

&arm_wdt {
	timeout-sec = <32>;
	status = "okay";
};

&ethernet1 {
	pinctrl-0 = <&eth1_rgmii_pins_b>;
	pinctrl-1 = <&eth1_rgmii_sleep_pins_b>;
	pinctrl-names = "default", "sleep";
	phy-handle = <&phy1_eth1>;
	phy-mode = "rgmii-id";
	status = "okay";

	mdio {
		#address-cells = <1>;
		#size-cells = <0>;
		compatible = "snps,dwmac-mdio";
		phy1_eth1: ethernet-phy@1 {
			compatible = "ethernet-phy-id001c.c916";
			reg = <1>;
			reset-gpios = <&gpioa 2 GPIO_ACTIVE_LOW>;
			reset-assert-us = <10000>;
			reset-deassert-us = <80000>;
		};
	};
};

&i2c2 {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&i2c2_pins_b>;
	pinctrl-1 = <&i2c2_sleep_pins_b>;
	i2c-scl-rising-time-ns = <108>;
	i2c-scl-falling-time-ns = <12>;
	clock-frequency = <400000>;
	status = "okay";
	/* spare dmas for other usage */
	/delete-property/dmas;
	/delete-property/dma-names;

	ili2511: ili2511@41 {
		compatible = "ilitek,ili251x";
		reg = <0x41>;
		interrupt-parent = <&gpioi>;
		interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
		reset-gpios = <&gpioi 0 GPIO_ACTIVE_LOW>;
		status = "okay";
	};
};

&i2c8 {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&i2c8_pins_a>;
	pinctrl-1 = <&i2c8_sleep_pins_a>;
	i2c-scl-rising-time-ns = <185>;
	i2c-scl-falling-time-ns = <20>;
	clock-frequency = <100000>;
	status = "disabled";
	/* spare dmas for other usage */
	/delete-property/dmas;
	/delete-property/dma-names;
};

&ltdc {
	status = "okay";
	port {
		ltdc_ep0_out: endpoint {
			remote-endpoint = <&lvds_in>;
		};
	};
};

&lvds {
	status = "okay";
	ports {
		#address-cells = <1>;
		#size-cells = <0>;

		port@0 {
			reg = <0>;
			lvds_in: endpoint {
				remote-endpoint = <&ltdc_ep0_out>;
			};
		};

		port@1 {
			reg = <1>;
			lvds_out0: endpoint {
				remote-endpoint = <&lvds_panel_in>;
			};
		};
	};
};

&scmi_regu {
	scmi_vddio1: regulator@0 {
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <3300000>;
	};
	scmi_vddcore: regulator@11 {
		reg = <VOLTD_SCMI_STPMIC2_BUCK2>;
		regulator-name = "vddcore";
	};
	scmi_v1v8: regulator@14 {
		reg = <VOLTD_SCMI_STPMIC2_BUCK5>;
		regulator-name = "v1v8";
	};
	scmi_v3v3: regulator@16 {
		reg = <VOLTD_SCMI_STPMIC2_BUCK7>;
		regulator-name = "v3v3";
	};
	scmi_vdd_emmc: regulator@18 {
		reg = <VOLTD_SCMI_STPMIC2_LDO2>;
		regulator-name = "vdd_emmc";
	};
	scmi_vdd3v3_usb: regulator@20 {
		reg = <VOLTD_SCMI_STPMIC2_LDO4>;
		regulator-name = "vdd3v3_usb";
	};
	scmi_v5v_hdmi: regulator@21 {
		reg = <VOLTD_SCMI_STPMIC2_LDO5>;
		regulator-name = "v5v_hdmi";
	};
	scmi_v5v_vconn: regulator@22 {
		reg = <VOLTD_SCMI_STPMIC2_LDO6>;
		regulator-name = "v5v_vconn";
	};
	scmi_vdd_sdcard: regulator@23 {
		reg = <VOLTD_SCMI_STPMIC2_LDO7>;
		regulator-name = "vdd_sdcard";
	};
};

&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 = <&gpiod 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
	disable-wp;
	st,neg-edge;
	bus-width = <4>;
	vmmc-supply = <&scmi_vdd_sdcard>;
	vqmmc-supply = <&scmi_vddio1>;
	status = "okay";
};

&usart2 {
	pinctrl-names = "default", "idle", "sleep";
	pinctrl-0 = <&usart2_pins_a>;
	pinctrl-1 = <&usart2_idle_pins_a>;
	pinctrl-2 = <&usart2_sleep_pins_a>;
	/delete-property/dmas;
	/delete-property/dma-names;
	status = "okay";
};