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kernel/linux-rt-4.4.41/arch/arm/boot/dts/imx28-duckbill.dts 2.46 KB
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  /*
   * Copyright (C) 2013 Michael Heimpold <mhei@heimpold.de>
   *
   * The code contained herein is licensed under the GNU General Public
   * License. You may obtain a copy of the GNU General Public License
   * Version 2 or later at the following locations:
   *
   * http://www.opensource.org/licenses/gpl-license.html
   * http://www.gnu.org/copyleft/gpl.html
   */
  
  /dts-v1/;
  #include "imx28.dtsi"
  
  / {
  	model = "I2SE Duckbill";
  	compatible = "i2se,duckbill", "fsl,imx28";
  
  	memory {
  		reg = <0x40000000 0x08000000>;
  	};
  
  	apb@80000000 {
  		apbh@80000000 {
  			ssp0: ssp@80010000 {
  				compatible = "fsl,imx28-mmc";
  				pinctrl-names = "default";
  				pinctrl-0 = <&mmc0_4bit_pins_a
  					&mmc0_cd_cfg &mmc0_sck_cfg>;
  				bus-width = <4>;
  				vmmc-supply = <&reg_3p3v>;
  				status = "okay";
  			};
  
  			pinctrl@80018000 {
  				pinctrl-names = "default";
  				pinctrl-0 = <&hog_pins_a>;
  
  				hog_pins_a: hog@0 {
  					reg = <0>;
  					fsl,pinmux-ids = <
  						MX28_PAD_SSP0_DATA7__GPIO_2_7 /* PHY Reset */
  					>;
  					fsl,drive-strength = <MXS_DRIVE_4mA>;
  					fsl,voltage = <MXS_VOLTAGE_HIGH>;
  					fsl,pull-up = <MXS_PULL_DISABLE>;
  				};
  
  				led_pins_a: led_gpio@0 {
  					reg = <0>;
  					fsl,pinmux-ids = <
  						MX28_PAD_AUART1_RX__GPIO_3_4
  						MX28_PAD_AUART1_TX__GPIO_3_5
  					>;
  					fsl,drive-strength = <MXS_DRIVE_4mA>;
  					fsl,voltage = <MXS_VOLTAGE_HIGH>;
  					fsl,pull-up = <MXS_PULL_DISABLE>;
  				};
  			};
  		};
  
  		apbx@80040000 {
  			duart: serial@80074000 {
  				pinctrl-names = "default";
  				pinctrl-0 = <&duart_pins_a>;
  				status = "okay";
  			};
  
  			usbphy0: usbphy@8007c000 {
  				status = "okay";
  			};
  		};
  	};
  
  	ahb@80080000 {
  		usb0: usb@80080000 {
  			status = "okay";
  		};
  
  		mac0: ethernet@800f0000 {
  			phy-mode = "rmii";
  			pinctrl-names = "default";
  			pinctrl-0 = <&mac0_pins_a>;
  			phy-supply = <&reg_3p3v>;
  			phy-reset-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;
  			phy-reset-duration = <100>;
  			status = "okay";
  		};
  	};
  
  	regulators {
  		compatible = "simple-bus";
  		#address-cells = <1>;
  		#size-cells = <0>;
  
  		reg_3p3v: regulator@0 {
  			compatible = "regulator-fixed";
  			reg = <0>;
  			regulator-name = "3P3V";
  			regulator-min-microvolt = <3300000>;
  			regulator-max-microvolt = <3300000>;
  			regulator-always-on;
  		};
  	};
  
  	leds {
  		compatible = "gpio-leds";
  		pinctrl-names = "default";
  		pinctrl-0 = <&led_pins_a>;
  
  		status {
  			label = "duckbill:green:status";
  			gpios = <&gpio3 5 GPIO_ACTIVE_HIGH>;
  		};
  
  		failure {
  			label = "duckbill:red:status";
  			gpios = <&gpio3 4 GPIO_ACTIVE_HIGH>;
  		};
  	};
  };