u-boot/arch/arm/dts/s5p4418-pinctrl.dtsi

// SPDX-License-Identifier: GPL-2.0+
/*
 * Nexell's s5p6818 SoC pin-mux and pin-config device tree source
 *
 * (C) Copyright 2020 Stefan Bosch <stefan_b@posteo.net>
 *
 * Copyright (C) 2016  Nexell Co., Ltd.
 *		http://www.nexell.co.kr
 *
 * Nexell's s5p6818 SoC pin-mux and pin-config options are listed as
 * device tree nodes in this file.
 */

pinctrl@C0010000 {
	/*
	 * values for "pin-pull":
	 *	pulldown resistor = 0
	 *	pullup = 1
	 *	no pullup/down = 2
	 */

	/* MMC */
	mmc0_clk: mmc0-clk {
		pins = "gpioa-29";
		pin-function = <1>;
		pin-pull = <2>;
		pin-strength = <2>;
	};

	mmc0_cmd: mmc0-cmd {
		pins = "gpioa-31";
		pin-function = <1>;
		pin-pull = <2>;
		pin-strength = <1>;
	};

	mmc0_bus4: mmc0-bus-width4 {
		pins = "gpiob-1, gpiob-3, gpiob-5, gpiob-7";
		pin-function = <1>;
		pin-pull = <2>;
		pin-strength = <1>;
	};

	mmc1_clk: mmc1-clk {
		pins = "gpiod-22";
		pin-function = <1>;
		pin-pull = <2>;
		pin-strength = <2>;
	};

	mmc1_cmd: mmc1-cmd {
		pins = "gpiod-23";
		pin-function = <1>;
		pin-pull = <2>;
		pin-strength = <1>;
	};

	mmc1_bus4: mmc1-bus-width4 {
		pins = "gpiod-24, gpiod-25, gpiod-26, gpiod-27";
		pin-function = <1>;
		pin-pull = <2>;
		pin-strength = <1>;
	};

	mmc2_clk: mmc2-clk {
		pins = "gpioc-18";
		pin-function = <2>;
		pin-pull = <2>;
		pin-strength = <2>;
	};

	mmc2_cmd: mmc2-cmd {
		pins = "gpioc-19";
		pin-function = <2>;
		pin-pull = <2>;
		pin-strength = <1>;
	};

	mmc2_bus4: mmc2-bus-width4 {
		pins = "gpioc-20, gpioc-21, gpioc-22, gpioc-23";
		pin-function = <2>;
		pin-pull = <2>;
		pin-strength = <1>;
	};

	mmc2_bus8: mmc2-bus-width8 {
		nexell,pins = "gpioe-21", "gpioe-22", "gpioe-23", "gpioe-24";
		pin-function = <2>;
		pin-pull = <2>;
		pin-strength = <1>;
	};

	/* I2C */
	i2c0_sda:i2c0-sda {
		pins = "gpiod-3";
		pin-function = <1>;
		pin-pull = <2>;
		pin-strength = <0>;
	};

	i2c0_scl:i2c0-scl {
		pins = "gpiod-2";
		pin-function = <1>;
		pin-pull = <2>;
		pin-strength = <0>;
	};

	i2c1_sda:i2c1-sda {
		pins = "gpiod-5";
		pin-function = <1>;
		pin-pull = <2>;
		pin-strength = <0>;
	};

	i2c1_scl:i2c1-scl {
		pins = "gpiod-4";
		pin-function = <1>;
		pin-pull = <2>;
		pin-strength = <0>;
	};

	i2c2_sda:i2c2-sda {
		pins = "gpiod-7";
		pin-function = <1>;
		pin-pull = <2>;
		pin-strength = <0>;
	};

	i2c2_scl:i2c2-scl {
		pins = "gpiod-6";
		pin-function = <1>;
		pin-pull = <2>;
		pin-strength = <0>;
	};
};