arch/arm/boot/dts/da850-lego-ev3.dts - linux-imx - Git at Google

 /*
  * Device tree for LEGO MINDSTORMS EV3
  *
  * Copyright (C) 2017 David Lechner <david@lechnology.com>
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation, version 2.
  */

 /dts-v1/;
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/linux-event-codes.h>
 #include <dt-bindings/pwm/pwm.h>

 #include "da850.dtsi"

 / {
 	compatible = "lego,ev3", "ti,da850";
 	model = "LEGO MINDSTORMS EV3";

 	aliases {
 		serial1 = &serial1;
 	};

 	memory@c0000000 {
 		device_type = "memory";
 		reg = <0xc0000000 0x04000000>;
 	};

 	/*
 	 * The buttons on the EV3 are mapped to keyboard keys.
 	 */
 	gpio_keys {
 		compatible = "gpio-keys";
 		#address-cells = <1>;
 		#size-cells = <0>;
 		label = "EV3 Brick Buttons";
 		pinctrl-names = "default";
 		pinctrl-0 = <&button_pins>, <&button_bias>;

 		center {
 			label = "Center";
 			linux,code = <KEY_ENTER>;
 			gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
 		};

 		left {
 			label = "Left";
 			linux,code = <KEY_LEFT>;
 			gpios = <&gpio 102 GPIO_ACTIVE_HIGH>;
 		};

 		back {
 			label = "Back";
 			linux,code = <KEY_BACKSPACE>;
 			gpios = <&gpio 106 GPIO_ACTIVE_HIGH>;
 		};

 		right {
 			label = "Right";
 			linux,code = <KEY_RIGHT>;
 			gpios = <&gpio 124 GPIO_ACTIVE_HIGH>;
 		};

 		down {
 			label = "Down";
 			linux,code = <KEY_DOWN>;
 			gpios = <&gpio 126 GPIO_ACTIVE_HIGH>;
 		};

 		up {
 			label = "Up";
 			linux,code = <KEY_UP>;
 			gpios = <&gpio 127 GPIO_ACTIVE_HIGH>;
 		};
 	};

 	/*
 	 * The EV3 has two built-in bi-color LEDs behind the buttons.
 	 */
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
 		pinctrl-0 = <&led_pins>;

 		left_green {
 			label = "led0:green:brick-status";
 			/* GP6[13] */
 			gpios = <&gpio 103 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "default-on";
 		};

 		right_red {
 			label = "led1:red:brick-status";
 			/* GP6[7] */
 			gpios = <&gpio 108 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "default-on";
 		};

 		left_red {
 			label = "led0:red:brick-status";
 			/* GP6[12] */
 			gpios = <&gpio 109 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "default-on";
 		};

 		right_green {
 			label = "led1:green:brick-status";
 			/* GP6[14] */
 			gpios = <&gpio 110 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "default-on";
 		};
 	};

 	/*
 	 * The EV3 is powered down by turning off the main 5V supply.
 	 */
 	gpio-poweroff {
 		compatible = "gpio-poweroff";
 		gpios = <&gpio 107 GPIO_ACTIVE_LOW>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&system_power_pin>;
 	};

 	sound {
 		compatible = "pwm-beeper";
 		pinctrl-names = "default";
 		pinctrl-0 = <&ehrpwm0b_pins>;
 		pwms = <&ehrpwm0 1 1000000 0>;
 		amp-supply = <&amp>;
 	};

 	/*
 	 * This is a 5V current limiting regulator that is shared by USB,
 	 * the sensor (input) ports, the motor (output) ports and the A/DC.
 	 */
 	vcc5v: regulator1 {
 		pinctrl-names = "default";
 		pinctrl-0 = <&vcc5v_pins>;
 		compatible = "regulator-fixed";
 		regulator-name = "vcc5v";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 		gpio = <&gpio 101 0>;
 		over-current-gpios = <&gpio 99 GPIO_ACTIVE_LOW>;
 		enable-active-high;
 		regulator-boot-on;
 	};

 	/*
 	 * This is a simple voltage divider on VCC5V to provide a 2.5V
 	 * reference signal to the ADC.
 	 */
 	adc_ref: regulator2 {
 		compatible = "regulator-fixed";
 		regulator-name = "adc ref";
 		regulator-min-microvolt = <2500000>;
 		regulator-max-microvolt = <2500000>;
 		regulator-boot-on;
 		vin-supply = <&vcc5v>;
 	};

 	/*
 	 * This is the amplifier for the speaker.
 	 */
 	amp: regulator3 {
 		pinctrl-names = "default";
 		pinctrl-0 = <&amp_pins>;
 		compatible = "regulator-fixed";
 		regulator-name = "amp";
 		gpio = <&gpio 111 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 	};

 	/*
 	 * The EV3 can use 6-AA batteries or a rechargeable Li-ion battery pack.
 	 */
 	battery {
 		pinctrl-names = "default";
 		pinctrl-0 = <&battery_pins>;
 		compatible = "lego,ev3-battery";
 		io-channels = <&adc 4>, <&adc 3>;
 		io-channel-names = "voltage", "current";
 		rechargeable-gpios = <&gpio 136 GPIO_ACTIVE_LOW>;
 	};
 };

 &pmx_core {
 	status = "okay";

 	mmc0_cd_pin: pinmux_mmc0_cd {
 		pinctrl-single,bits = <
 			/* GP5[14] */
 			0x2C 0x00000080 0x000000f0
 		>;
 	};

 	button_pins: pinmux_button_pins {
 		pinctrl-single,bits = <
 			/* GP1[13] */
 			0x8 0x00000800 0x00000f00
 			/* GP6[10] */
 			0x34 0x00800000 0x00f00000
 			/* GP6[6] */
 			0x38 0x00000080 0x000000f0
 			/* GP7[12], GP7[14], GP7[15] */
 			0x40 0x00808800 0x00f0ff00
 		>;
 	};

 	led_pins: pinmux_led_pins {
 		pinctrl-single,bits = <
 			/* GP6[12], GP6[13], GP6[14] */
 			0x34 0x00008880 0x0000fff0
 			/* GP6[7] */
 			0x38 0x00000008 0x0000000f
 		>;
 	};

 	system_power_pin: pinmux_system_power {
 		pinctrl-single,bits = <
 			/* GP6[11] */
 			0x34 0x00080000 0x000f0000
 		>;
 	};

 	vcc5v_pins: pinmux_vcc5v {
 		pinctrl-single,bits = <
 			/* GP6[5] */
 			0x40 0x00000080 0x000000f0
 			/* GP6[3] */
 			0x4c 0x00008000 0x0000f000
 		>;
 	};

 	amp_pins: pinmux_amp_pins {
 		pinctrl-single,bits = <
 			/* GP6[15] */
 			0x34 0x00000008 0x0000000f
 		>;
 	};

 	battery_pins: pinmux_battery_pins {
 		pinctrl-single,bits = <
 			/* GP0[6] */
 			0x04 0x00000080 0x000000f0
 			/* GP8[8] */
 			0x4c 0x00000080 0x000000f0
 		>;
 	};

 	ev3_lcd_pins: pinmux_lcd {
 		pinctrl-single,bits = <
 			/* SIMO, GP2[11], GP2[12], CLK */
 			0x14 0x00188100 0x00ffff00
 			/* GP5[0] */
 			0x30 0x80000000 0xf0000000
 		>;
 	};
 };

 &pinconf {
 	status = "okay";

 	/* Buttons have external pulldown resistors */
 	button_bias: button-bias-groups {
 		disable {
 			groups = "cp5", "cp24", "cp25", "cp28";
 			bias-disable;
 		};
 	};
 };

 /* Input port 1 */
 &serial1 {
 	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&serial1_rxtx_pins>;
 };

 &rtc0 {
 	status = "okay";
 };

 &i2c0 {
 	status = "okay";
 	clock-frequency = <400000>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c0_pins>;

 	/*
 	 * EEPROM contains the first stage bootloader, HW ID and Bluetooth MAC.
 	 */
 	eeprom@50 {
 		compatible = "microchip,24c128";
 		pagesize = <64>;
 		read-only;
 		reg = <0x50>;
 	};
 };

 &wdt {
 	status = "okay";
 };

 &mmc0 {
 	status = "okay";
 	max-frequency = <50000000>;
 	bus-width = <4>;
 	cd-gpios = <&gpio 94 GPIO_ACTIVE_LOW>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc0_pins>, <&mmc0_cd_pin>;
 };

 &spi0 {
 	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>, <&spi0_cs3_pin>;

 	flash@0 {
 		compatible = "n25q128a13", "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <50000000>;
 		ti,spi-wdelay = <8>;

 		/* Partitions are based on the official firmware from LEGO */
 		partitions {
 			compatible = "fixed-partitions";
 			#address-cells = <1>;
 			#size-cells = <1>;

 			partition@0 {
 				label = "U-Boot";
 				reg = <0 0x40000>;
 			};

 			partition@40000 {
 				label = "U-Boot Env";
 				reg = <0x40000 0x10000>;
 			};

 			partition@50000 {
 				label = "Kernel";
 				reg = <0x50000 0x200000>;
 			};

 			partition@250000 {
 				label = "Filesystem";
 				reg = <0x250000 0xa50000>;
 			};

 			partition@cb0000 {
 				label = "Storage";
 				reg = <0xcb0000 0x2f0000>;
 			};
 		};
 	};

 	adc: adc@3 {
 		compatible = "ti,ads7957";
 		reg = <3>;
 		#io-channel-cells = <1>;
 		spi-max-frequency = <10000000>;
 		vref-supply = <&adc_ref>;
 	};
 };

 &spi1 {
 	status = "okay";
 	pinctrl-0 = <&ev3_lcd_pins>;
 	pinctrl-names = "default";
 	cs-gpios = <&gpio 44 GPIO_ACTIVE_LOW>;

 	display@0{
 		compatible = "lego,ev3-lcd";
 		reg = <0>;
 		spi-max-frequency = <10000000>;
 		a0-gpios = <&gpio 43 GPIO_ACTIVE_HIGH>;
 		reset-gpios = <&gpio 80 GPIO_ACTIVE_HIGH>;
 	};
 };

 &ehrpwm0 {
 	status = "okay";
 };

 &gpio {
 	status = "okay";

 	/* Don't pull down battery voltage adc io channel */
 	batt_volt_en {
 		gpio-hog;
 		gpios = <6 GPIO_ACTIVE_HIGH>;
 		output-high;
 	};
 };

 &usb_phy {
 	status = "okay";
 };

 &usb0 {
 	status = "okay";
 };

 &usb1 {
 	status = "okay";
 	vbus-supply = <&vcc5v>;
 };
	/*
	* Device tree for LEGO MINDSTORMS EV3
	*
	* Copyright (C) 2017 David Lechner <david@lechnology.com>
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License as published by the
	* Free Software Foundation, version 2.
	*/

	/dts-v1/;
	#include <dt-bindings/gpio/gpio.h>
	#include <dt-bindings/input/linux-event-codes.h>
	#include <dt-bindings/pwm/pwm.h>

	#include "da850.dtsi"

	/ {
	compatible = "lego,ev3", "ti,da850";
	model = "LEGO MINDSTORMS EV3";

	aliases {
	serial1 = &serial1;
	};

	memory@c0000000 {
	device_type = "memory";
	reg = <0xc0000000 0x04000000>;
	};

	/*
	* The buttons on the EV3 are mapped to keyboard keys.
	*/
	gpio_keys {
	compatible = "gpio-keys";
	#address-cells = <1>;
	#size-cells = <0>;
	label = "EV3 Brick Buttons";
	pinctrl-names = "default";
	pinctrl-0 = <&button_pins>, <&button_bias>;

	center {
	label = "Center";
	linux,code = <KEY_ENTER>;
	gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
	};

	left {
	label = "Left";
	linux,code = <KEY_LEFT>;
	gpios = <&gpio 102 GPIO_ACTIVE_HIGH>;
	};

	back {
	label = "Back";
	linux,code = <KEY_BACKSPACE>;
	gpios = <&gpio 106 GPIO_ACTIVE_HIGH>;
	};

	right {
	label = "Right";
	linux,code = <KEY_RIGHT>;
	gpios = <&gpio 124 GPIO_ACTIVE_HIGH>;
	};

	down {
	label = "Down";
	linux,code = <KEY_DOWN>;
	gpios = <&gpio 126 GPIO_ACTIVE_HIGH>;
	};

	up {
	label = "Up";
	linux,code = <KEY_UP>;
	gpios = <&gpio 127 GPIO_ACTIVE_HIGH>;
	};
	};

	/*
	* The EV3 has two built-in bi-color LEDs behind the buttons.
	*/
	leds {
	compatible = "gpio-leds";
	pinctrl-names = "default";
	pinctrl-0 = <&led_pins>;

	left_green {
	label = "led0:green:brick-status";
	/* GP6[13] */
	gpios = <&gpio 103 GPIO_ACTIVE_HIGH>;
	linux,default-trigger = "default-on";
	};

	right_red {
	label = "led1:red:brick-status";
	/* GP6[7] */
	gpios = <&gpio 108 GPIO_ACTIVE_HIGH>;
	linux,default-trigger = "default-on";
	};

	left_red {
	label = "led0:red:brick-status";
	/* GP6[12] */
	gpios = <&gpio 109 GPIO_ACTIVE_HIGH>;
	linux,default-trigger = "default-on";
	};

	right_green {
	label = "led1:green:brick-status";
	/* GP6[14] */
	gpios = <&gpio 110 GPIO_ACTIVE_HIGH>;
	linux,default-trigger = "default-on";
	};
	};

	/*
	* The EV3 is powered down by turning off the main 5V supply.
	*/
	gpio-poweroff {
	compatible = "gpio-poweroff";
	gpios = <&gpio 107 GPIO_ACTIVE_LOW>;
	pinctrl-names = "default";
	pinctrl-0 = <&system_power_pin>;
	};

	sound {
	compatible = "pwm-beeper";
	pinctrl-names = "default";
	pinctrl-0 = <&ehrpwm0b_pins>;
	pwms = <&ehrpwm0 1 1000000 0>;
	amp-supply = <&amp>;
	};

	/*
	* This is a 5V current limiting regulator that is shared by USB,
	* the sensor (input) ports, the motor (output) ports and the A/DC.
	*/
	vcc5v: regulator1 {
	pinctrl-names = "default";
	pinctrl-0 = <&vcc5v_pins>;
	compatible = "regulator-fixed";
	regulator-name = "vcc5v";
	regulator-min-microvolt = <5000000>;
	regulator-max-microvolt = <5000000>;
	gpio = <&gpio 101 0>;
	over-current-gpios = <&gpio 99 GPIO_ACTIVE_LOW>;
	enable-active-high;
	regulator-boot-on;
	};

	/*
	* This is a simple voltage divider on VCC5V to provide a 2.5V
	* reference signal to the ADC.
	*/
	adc_ref: regulator2 {
	compatible = "regulator-fixed";
	regulator-name = "adc ref";
	regulator-min-microvolt = <2500000>;
	regulator-max-microvolt = <2500000>;
	regulator-boot-on;
	vin-supply = <&vcc5v>;
	};

	/*
	* This is the amplifier for the speaker.
	*/
	amp: regulator3 {
	pinctrl-names = "default";
	pinctrl-0 = <&amp_pins>;
	compatible = "regulator-fixed";
	regulator-name = "amp";
	gpio = <&gpio 111 GPIO_ACTIVE_HIGH>;
	enable-active-high;
	};

	/*
	* The EV3 can use 6-AA batteries or a rechargeable Li-ion battery pack.
	*/
	battery {
	pinctrl-names = "default";
	pinctrl-0 = <&battery_pins>;
	compatible = "lego,ev3-battery";
	io-channels = <&adc 4>, <&adc 3>;
	io-channel-names = "voltage", "current";
	rechargeable-gpios = <&gpio 136 GPIO_ACTIVE_LOW>;
	};
	};

	&pmx_core {
	status = "okay";

	mmc0_cd_pin: pinmux_mmc0_cd {
	pinctrl-single,bits = <
	/* GP5[14] */
	0x2C 0x00000080 0x000000f0
	>;
	};

	button_pins: pinmux_button_pins {
	pinctrl-single,bits = <
	/* GP1[13] */
	0x8 0x00000800 0x00000f00
	/* GP6[10] */
	0x34 0x00800000 0x00f00000
	/* GP6[6] */
	0x38 0x00000080 0x000000f0
	/* GP7[12], GP7[14], GP7[15] */
	0x40 0x00808800 0x00f0ff00
	>;
	};

	led_pins: pinmux_led_pins {
	pinctrl-single,bits = <
	/* GP6[12], GP6[13], GP6[14] */
	0x34 0x00008880 0x0000fff0
	/* GP6[7] */
	0x38 0x00000008 0x0000000f
	>;
	};

	system_power_pin: pinmux_system_power {
	pinctrl-single,bits = <
	/* GP6[11] */
	0x34 0x00080000 0x000f0000
	>;
	};

	vcc5v_pins: pinmux_vcc5v {
	pinctrl-single,bits = <
	/* GP6[5] */
	0x40 0x00000080 0x000000f0
	/* GP6[3] */
	0x4c 0x00008000 0x0000f000
	>;
	};

	amp_pins: pinmux_amp_pins {
	pinctrl-single,bits = <
	/* GP6[15] */
	0x34 0x00000008 0x0000000f
	>;
	};

	battery_pins: pinmux_battery_pins {
	pinctrl-single,bits = <
	/* GP0[6] */
	0x04 0x00000080 0x000000f0
	/* GP8[8] */
	0x4c 0x00000080 0x000000f0
	>;
	};

	ev3_lcd_pins: pinmux_lcd {
	pinctrl-single,bits = <
	/* SIMO, GP2[11], GP2[12], CLK */
	0x14 0x00188100 0x00ffff00
	/* GP5[0] */
	0x30 0x80000000 0xf0000000
	>;
	};
	};

	&pinconf {
	status = "okay";

	/* Buttons have external pulldown resistors */
	button_bias: button-bias-groups {
	disable {
	groups = "cp5", "cp24", "cp25", "cp28";
	bias-disable;
	};
	};
	};

	/* Input port 1 */
	&serial1 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&serial1_rxtx_pins>;
	};

	&rtc0 {
	status = "okay";
	};

	&i2c0 {
	status = "okay";
	clock-frequency = <400000>;
	pinctrl-names = "default";
	pinctrl-0 = <&i2c0_pins>;

	/*
	* EEPROM contains the first stage bootloader, HW ID and Bluetooth MAC.
	*/
	eeprom@50 {
	compatible = "microchip,24c128";
	pagesize = <64>;
	read-only;
	reg = <0x50>;
	};
	};

	&wdt {
	status = "okay";
	};

	&mmc0 {
	status = "okay";
	max-frequency = <50000000>;
	bus-width = <4>;
	cd-gpios = <&gpio 94 GPIO_ACTIVE_LOW>;
	pinctrl-names = "default";
	pinctrl-0 = <&mmc0_pins>, <&mmc0_cd_pin>;
	};

	&spi0 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>, <&spi0_cs3_pin>;

	flash@0 {
	compatible = "n25q128a13", "jedec,spi-nor";
	reg = <0>;
	spi-max-frequency = <50000000>;
	ti,spi-wdelay = <8>;

	/* Partitions are based on the official firmware from LEGO */
	partitions {
	compatible = "fixed-partitions";
	#address-cells = <1>;
	#size-cells = <1>;

	partition@0 {
	label = "U-Boot";
	reg = <0 0x40000>;
	};

	partition@40000 {
	label = "U-Boot Env";
	reg = <0x40000 0x10000>;
	};

	partition@50000 {
	label = "Kernel";
	reg = <0x50000 0x200000>;
	};

	partition@250000 {
	label = "Filesystem";
	reg = <0x250000 0xa50000>;
	};

	partition@cb0000 {
	label = "Storage";
	reg = <0xcb0000 0x2f0000>;
	};
	};
	};

	adc: adc@3 {
	compatible = "ti,ads7957";
	reg = <3>;
	#io-channel-cells = <1>;
	spi-max-frequency = <10000000>;
	vref-supply = <&adc_ref>;
	};
	};

	&spi1 {
	status = "okay";
	pinctrl-0 = <&ev3_lcd_pins>;
	pinctrl-names = "default";
	cs-gpios = <&gpio 44 GPIO_ACTIVE_LOW>;

	display@0{
	compatible = "lego,ev3-lcd";
	reg = <0>;
	spi-max-frequency = <10000000>;
	a0-gpios = <&gpio 43 GPIO_ACTIVE_HIGH>;
	reset-gpios = <&gpio 80 GPIO_ACTIVE_HIGH>;
	};
	};

	&ehrpwm0 {
	status = "okay";
	};

	&gpio {
	status = "okay";

	/* Don't pull down battery voltage adc io channel */
	batt_volt_en {
	gpio-hog;
	gpios = <6 GPIO_ACTIVE_HIGH>;
	output-high;
	};
	};

	&usb_phy {
	status = "okay";
	};

	&usb0 {
	status = "okay";
	};

	&usb1 {
	status = "okay";
	vbus-supply = <&vcc5v>;
	};