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kernel/linux-rt-4.4.41/arch/arm/boot/dts/exynos4412-odroidx.dts 1.69 KB
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  /*
   * Hardkernel's Exynos4412 based ODROID-X board device tree source
   *
   * Copyright (c) 2012 Dongjin Kim <tobetter@gmail.com>
   *
   * Device tree source file for Hardkernel's ODROID-X board which is based
   * on Samsung's Exynos4412 SoC.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
  */
  
  /dts-v1/;
  #include "exynos4412-odroid-common.dtsi"
  
  / {
  	model = "Hardkernel ODROID-X board based on Exynos4412";
  	compatible = "hardkernel,odroid-x", "samsung,exynos4412", "samsung,exynos4";
  
  	memory {
  		reg = <0x40000000 0x3FF00000>;
  	};
  
  	leds {
  		compatible = "gpio-leds";
  		led1 {
  			label = "led1:heart";
  			gpios = <&gpc1 0 GPIO_ACTIVE_LOW>;
  			default-state = "on";
  			linux,default-trigger = "heartbeat";
  		};
  		led2 {
  			label = "led2:mmc0";
  			gpios = <&gpc1 2 GPIO_ACTIVE_LOW>;
  			default-state = "on";
  			linux,default-trigger = "mmc0";
  		};
  	};
  
  	gpio_keys {
  		pinctrl-0 = <&gpio_power_key &gpio_home_key>;
  
  		home_key {
  			interrupt-parent = <&gpx2>;
  			interrupts = <2 0>;
  			gpios = <&gpx2 2 GPIO_ACTIVE_HIGH>;
  			linux,code = <KEY_HOME>;
  			label = "home key";
  			debounce-interval = <10>;
  			gpio-key,wakeup;
  		};
  	};
  
  	regulator_p3v3 {
  		compatible = "regulator-fixed";
  		regulator-name = "p3v3_en";
  		regulator-min-microvolt = <3300000>;
  		regulator-max-microvolt = <3300000>;
  		gpio = <&gpa1 1 GPIO_ACTIVE_LOW>;
  		enable-active-high;
  		regulator-always-on;
  	};
  };
  
  &ehci {
  	port@1 {
  		status = "okay";
  	};
  };
  
  &pinctrl_1 {
  	gpio_home_key: home_key {
  		samsung,pins = "gpx2-2";
  		samsung,pin-pud = <0>;
  	};
  };
  
  &serial_2 {
  	status = "okay";
  };
  
  &serial_3 {
  	status = "okay";
  };