linux/linux-5.18.11/arch/arm/boot/dts/exynos4412-smdk4412.dts

// SPDX-License-Identifier: GPL-2.0
/*
 * Samsung's Exynos4412 based SMDK board device tree source
 *
 * Copyright (c) 2012-2013 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com
 *
 * Device tree source file for Samsung's SMDK4412 board which is based on
 * Samsung's Exynos4412 SoC.
 */

/dts-v1/;
#include "exynos4412.dtsi"
#include "exynos-mfc-reserved-memory.dtsi"

/ {
	model = "Samsung SMDK evaluation board based on Exynos4412";
	compatible = "samsung,smdk4412", "samsung,exynos4412", "samsung,exynos4";

	memory@40000000 {
		device_type = "memory";
		reg = <0x40000000 0x40000000>;
	};

	chosen {
		bootargs = "root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M init=/linuxrc";
		stdout-path = "serial1:115200n8";
	};

	fixed-rate-clocks {
		xxti {
			compatible = "samsung,clock-xxti";
			clock-frequency = <0>;
		};

		xusbxti {
			compatible = "samsung,clock-xusbxti";
			clock-frequency = <24000000>;
		};

		pmic_ap_clk: pmic-ap-clk {
			/* Workaround for missing clock on PMIC */
			compatible = "fixed-clock";
			#clock-cells = <0>;
			clock-frequency = <32768>;
		};
	};
};

&cpu_thermal {
	cooling-maps {
		cooling_map0: map0 {
			/* Corresponds to 800MHz at freq_table */
			cooling-device = <&cpu0 7 7>, <&cpu1 7 7>,
					 <&cpu2 7 7>, <&cpu3 7 7>;
		};
		cooling_map1: map1 {
			/* Corresponds to 200MHz at freq_table */
			cooling-device = <&cpu0 13 13>, <&cpu1 13 13>,
					 <&cpu2 13 13>, <&cpu3 13 13>;
		};
	};
};

&keypad {
	samsung,keypad-num-rows = <3>;
	samsung,keypad-num-columns = <8>;
	linux,keypad-no-autorepeat;
	wakeup-source;
	pinctrl-0 = <&keypad_rows &keypad_cols>;
	pinctrl-names = "default";
	status = "okay";

	key-1 {
		keypad,row = <1>;
		keypad,column = <3>;
		linux,code = <2>;
	};

	key-2 {
		keypad,row = <1>;
		keypad,column = <4>;
		linux,code = <3>;
	};

	key-3 {
		keypad,row = <1>;
		keypad,column = <5>;
		linux,code = <4>;
	};

	key-4 {
		keypad,row = <1>;
		keypad,column = <6>;
		linux,code = <5>;
	};

	key-5 {
		keypad,row = <1>;
		keypad,column = <7>;
		linux,code = <6>;
	};

	key-A {
		keypad,row = <2>;
		keypad,column = <6>;
		linux,code = <30>;
	};

	key-B {
		keypad,row = <2>;
		keypad,column = <7>;
		linux,code = <48>;
	};

	key-C {
		keypad,row = <0>;
		keypad,column = <5>;
		linux,code = <46>;
	};

	key-D {
		keypad,row = <2>;
		keypad,column = <5>;
		linux,code = <32>;
	};

	key-E {
		keypad,row = <0>;
		keypad,column = <7>;
		linux,code = <18>;
	};
};

&pinctrl_1 {
	keypad_rows: keypad-rows-pins {
		samsung,pins = "gpx2-0", "gpx2-1", "gpx2-2";
		samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
	};

	keypad_cols: keypad-cols-pins {
		samsung,pins = "gpx1-0", "gpx1-1", "gpx1-2", "gpx1-3",
			       "gpx1-4", "gpx1-5", "gpx1-6", "gpx1-7";
		samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
	};
};

&rtc {
	clocks = <&clock CLK_RTC>, <&pmic_ap_clk>;
	clock-names = "rtc", "rtc_src";
};

&sdhci_2 {
	bus-width = <4>;
	pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_bus4 &sd2_cd>;
	pinctrl-names = "default";
	status = "okay";
};

&serial_0 {
	status = "okay";
};

&serial_1 {
	status = "okay";
};

&serial_2 {
	status = "okay";
};

&serial_3 {
	status = "okay";
};