arch/arm/boot/dts/ti/davinci/da850-lego-ev3.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/ti/davinci/da850-lego-ev3.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/ti/davinci/da850-lego-ev3.dts
Extension
.dts
Size
8815 bytes
Lines
467
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Device tree for LEGO MINDSTORMS EV3
 *
 * Copyright (C) 2017 David Lechner <david@lechnology.com>
 */

/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";
		label = "EV3 Brick Buttons";
		pinctrl-names = "default";
		pinctrl-0 = <&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>;

Annotation

Implementation Notes