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Commit 7f0e2da5 authored by Michael Heimpold's avatar Michael Heimpold Committed by Shawn Guo
Browse files

ARM: dts: add support for I2SE Duckbill 2 485 



This machine is based on I2SE's Duckbill 2 board and features a
RS-485 daugther board. This device is intended to be used for
e.g. home automation purposes.

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 c98cea9f

arch/arm/boot/dts/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -488,6 +488,7 @@ dtb-$(CONFIG_ARCH_MXS) += \ 
	imx28-cfa10056.dtb \

	imx28-cfa10057.dtb \

	imx28-cfa10058.dtb \

	imx28-duckbill-2-485.dtb \

	imx28-duckbill-2.dtb \

	imx28-duckbill.dtb \

	imx28-eukrea-mbmx283lc.dtb \

arch/arm/boot/dts/imx28-duckbill-2-485.dts

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+189 −0
Original line number Diff line number Diff line 
/*

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

 * Copyright (C) 2016 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 <dt-bindings/interrupt-controller/irq.h>

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

#include "imx28.dtsi"



/ {

	model = "I2SE Duckbill 2 485";

	compatible = "i2se,duckbill-2-485", "i2se,duckbill-2", "fsl,imx28";



	memory {

		reg = <0x40000000 0x08000000>;

	};



	apb@80000000 {

		apbh@80000000 {

			ssp0: ssp@80010000 {

				compatible = "fsl,imx28-mmc";

				pinctrl-names = "default";

				pinctrl-0 = <&mmc0_8bit_pins_a

					&mmc0_cd_cfg &mmc0_sck_cfg>;

				bus-width = <8>;

				vmmc-supply = <&reg_3p3v>;

				status = "okay";

				non-removable;

			};



			ssp2: ssp@80014000 {

				compatible = "fsl,imx28-mmc";

				pinctrl-names = "default";

				pinctrl-0 = <&mmc2_4bit_pins_b

					&mmc2_cd_cfg &mmc2_sck_cfg_b>;

				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_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_GPMI_ALE__GPIO_0_26    /* PHY Reset */

					>;

					fsl,drive-strength = <MXS_DRIVE_4mA>;

					fsl,voltage = <MXS_VOLTAGE_HIGH>;

					fsl,pull-up = <MXS_PULL_DISABLE>;

				};



				mac0_phy_int_pin: mac0-phy-int@0 {

					reg = <0>;

					fsl,pinmux-ids = <

						MX28_PAD_GPMI_D07__GPIO_0_7    /* PHY Interrupt */

					>;

					fsl,drive-strength = <MXS_DRIVE_4mA>;

					fsl,voltage = <MXS_VOLTAGE_HIGH>;

					fsl,pull-up = <MXS_PULL_DISABLE>;

				};



				led_pins: leds@0 {

					reg = <0>;

					fsl,pinmux-ids = <

						MX28_PAD_SAIF0_MCLK__GPIO_3_20

						MX28_PAD_SAIF0_LRCLK__GPIO_3_21

						MX28_PAD_I2C0_SCL__GPIO_3_24

						MX28_PAD_I2C0_SDA__GPIO_3_25

					>;

					fsl,drive-strength = <MXS_DRIVE_4mA>;

					fsl,voltage = <MXS_VOLTAGE_HIGH>;

					fsl,pull-up = <MXS_PULL_DISABLE>;

				};

			};

		};



		apbx@80040000 {

			lradc@80050000 {

				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>;

				status = "okay";

			};



			usbphy0: usbphy@8007c000 {

				status = "okay";

			};

		};

	};



	ahb@80080000 {

		usb0: usb@80080000 {

			status = "okay";

			dr_mode = "peripheral";

		};



		mac0: ethernet@800f0000 {

			phy-mode = "rmii";

			pinctrl-names = "default";

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

			phy-supply = <&reg_3p3v>;

			phy-reset-gpios = <&gpio0 26 GPIO_ACTIVE_LOW>;

			phy-reset-duration = <25>;

			phy-handle = <&ethphy>;

			status = "okay";



			mdio {

				#address-cells = <1>;

				#size-cells = <0>;



				ethphy: ethernet-phy@0 {

					compatible = "ethernet-phy-ieee802.3-c22";

					reg = <0>;

					pinctrl-names = "default";

					pinctrl-0 = <&mac0_phy_int_pin>;

					interrupt-parent = <&gpio0>;

					interrupts = <7 IRQ_TYPE_EDGE_FALLING>;

					max-speed = <100>;

				};

			};

		};

	};



	reg_3p3v: regulator-3p3v {

		compatible = "regulator-fixed";

		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>;



		status-red {

			label = "duckbill:red:status";

			gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;

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

		};



		status-green {

			label = "duckbill:green:status";

			gpios = <&gpio3 20 GPIO_ACTIVE_HIGH>;

			linux,default-trigger = "heartbeat";

		};



		rs485-red {

			label = "duckbill:red:rs485";

			gpios = <&gpio3 24 GPIO_ACTIVE_LOW>;

		};



		rs485-green {

			label = "duckbill:green:rs485";

			gpios = <&gpio3 25 GPIO_ACTIVE_LOW>;

		};

	};

};