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Commit 768716f4 authored by Michael Heimpold's avatar Michael Heimpold Committed by Shawn Guo
Browse files

ARM: dts: imx28-duckbill: update to match vendor distributed DT 



This patch updates the Duckbill device tree and synchronize it with
the vendor distributed file. The changes in mostly pin-muxing stuff,
but also some minor fixes. In detail:
- enable SPI pins
- enable I2C pins
- enable UART pins
- enable LRADC pin
- adjust USB DR mode
- add default triggers for LEDs
- get rid of regulators simple-bus container
- adjust phy reset duration
  According to phy datasheet, 25ms are sufficient. This also reduces
  the time to boot the system.

Signed-off-by: default avatarMichael Heimpold <mhei@heimpold.de>
Cc: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 620885e8

arch/arm/boot/dts/imx28-duckbill.dts

+56 −25
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2013 Michael Heimpold <mhei@heimpold.de>

 * Copyright (C) 2013-2014,2016 Michael Heimpold <mhei@heimpold.de>

 * Copyright (C) 2015-2017 I2SE GmbH <info@i2se.com>

 *

 * The code contained herein is licensed under the GNU General Public

 * License. You may obtain a copy of the GNU General Public License
@@ -10,6 +11,7 @@ 
 */



/dts-v1/;

#include <dt-bindings/gpio/gpio.h>

#include "imx28.dtsi"



/ {
@@ -32,11 +34,28 @@ 
				status = "okay";

			};



			ssp2: ssp@80014000 {

				compatible = "fsl,imx28-spi";

				pinctrl-names = "default";

				pinctrl-0 = <&spi2_pins_a>;

				status = "okay";

			};



			pinctrl@80018000 {

				pinctrl-names = "default";

				pinctrl-0 = <&hog_pins_a>;



				hog_pins_a: hog@0 {

					reg = <0>;

					fsl,pinmux-ids = <

						MX28_PAD_LCD_D17__GPIO_1_17    /* Revision detection */

					>;

					fsl,drive-strength = <MXS_DRIVE_4mA>;

					fsl,voltage = <MXS_VOLTAGE_HIGH>;

					fsl,pull-up = <MXS_PULL_DISABLE>;

				};



				mac0_phy_reset_pin: mac0-phy-reset@0 {

					reg = <0>;

					fsl,pinmux-ids = <

						MX28_PAD_SSP0_DATA7__GPIO_2_7    /* PHY Reset */
@@ -46,7 +65,7 @@ 
					fsl,pull-up = <MXS_PULL_DISABLE>;

				};



				led_pins_a: led_gpio@0 {

				led_pins: leds@0 {

					reg = <0>;

					fsl,pinmux-ids = <

						MX28_PAD_AUART1_RX__GPIO_3_4
@@ -60,6 +79,22 @@ 
		};



		apbx@80040000 {

			lradc@80050000 {

				status = "okay";

			};



			i2c0: i2c@80058000 {

				pinctrl-names = "default";

				pinctrl-0 = <&i2c0_pins_a>;

				status = "okay";

			};



			auart0: serial@8006a000 {

				pinctrl-names = "default";

				pinctrl-0 = <&auart0_2pins_a>;

				status = "okay";

			};



			duart: serial@80074000 {

				pinctrl-names = "default";

				pinctrl-0 = <&duart_pins_a>;
@@ -75,47 +110,43 @@ 
	ahb@80080000 {

		usb0: usb@80080000 {

			status = "okay";

			dr_mode = "peripheral";

		};



		mac0: ethernet@800f0000 {

			phy-mode = "rmii";

			pinctrl-names = "default";

			pinctrl-0 = <&mac0_pins_a>;

			pinctrl-0 = <&mac0_pins_a>, <&mac0_phy_reset_pin>;

			phy-supply = <&reg_3p3v>;

			phy-reset-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;

			phy-reset-duration = <100>;

			phy-reset-duration = <25>;

			status = "okay";

		};

	};



	regulators {

		compatible = "simple-bus";

		#address-cells = <1>;

		#size-cells = <0>;



		reg_3p3v: regulator@0 {

	reg_3p3v: regulator-3p3v {

		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>;

		pinctrl-0 = <&led_pins>;



		status {

			label = "duckbill:green:status";

			gpios = <&gpio3 5 GPIO_ACTIVE_HIGH>;

		};



		failure {

		status-red {

			label = "duckbill:red:status";

			gpios = <&gpio3 4 GPIO_ACTIVE_HIGH>;

			linux,default-trigger = "default-on";

		};



		status-green {

			label = "duckbill:green:status";

			gpios = <&gpio3 5 GPIO_ACTIVE_HIGH>;

			linux,default-trigger = "heartbeat";

		};

	};

};