fdts/stm32mp157c-lxa-mc1.dts

/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause) */
/*
 * Copyright (C) 2020 STMicroelectronics - All Rights Reserved
 * Copyright (C) 2020 Ahmad Fatoum, Pengutronix
 */

/dts-v1/;

#include "stm32mp157.dtsi"
#include "stm32mp15xc.dtsi"
#include "stm32mp15-ddr3-1x4Gb-1066-binG.dtsi"
#include "stm32mp15xx-osd32.dtsi"
#include "stm32mp15xxac-pinctrl.dtsi"

/ {
	model = "Linux Automation MC-1 board";
	compatible = "lxa,stm32mp157c-mc1", "oct,stm32mp15xx-osd32", "st,stm32mp157";

	aliases {
		mmc0 = &sdmmc1;
		mmc1 = &sdmmc2;
		serial0 = &uart4;
	};

	chosen {
		stdout-path = &uart4;
	};

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

		led-green {
			label = "mc1:green:act";
			gpios = <&gpioa 13 1>;
			linux,default-trigger = "heartbeat";
		};
	};

	reg_3v3: regulator_3v3 {
		compatible = "regulator-fixed";
		regulator-name = "3V3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
		vin-supply = <&v3v3>;
	};
};

&sdmmc1 {
	pinctrl-names = "default";
	pinctrl-0 = <&sdmmc1_b4_pins_a>;
	bus-width = <4>;
	cd-gpios = <&gpioh 3 1>;
	disable-wp;
	no-1-8-v;
	st,neg-edge;
	vmmc-supply = <&reg_3v3>;
	status = "okay";
};

&sdmmc1_b4_pins_a {
	/*
	 * board lacks external pull-ups on SDMMC lines. Class 10 SD refuses to
	 * work, thus enable internal pull-ups.
	 */
	pins1 {
		/delete-property/ bias-disable;
		bias-pull-up;
	};
	pins2 {
		/delete-property/ bias-disable;
		bias-pull-up;
	};
};

&sdmmc2 {
	pinctrl-names = "default";
	pinctrl-0 = <&sdmmc2_b4_pins_a &mc1_sdmmc2_d47_pins_b>;
	bus-width = <8>;
	no-1-8-v;
	no-sd;
	no-sdio;
	non-removable;
	st,neg-edge;
	vmmc-supply = <&reg_3v3>;
	status = "okay";
};

&uart4 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart4_pins_a>;
	status = "okay";
};

&pinctrl {
	mc1_sdmmc2_d47_pins_b: mc1-sdmmc2-d47-1 {
		pins {
			pinmux = <STM32_PINMUX('A', 8, AF9)>,  /* SDMMC2_D4 */
				 <STM32_PINMUX('A', 9, AF10)>, /* SDMMC2_D5 */
				 <STM32_PINMUX('C', 6, AF10)>, /* SDMMC2_D6 */
				 <STM32_PINMUX('C', 7, AF10)>; /* SDMMC2_D7 */
			slew-rate = <1>;
			drive-push-pull;
			bias-disable;
		};
	};
};