arch/arm/boot/dts/renesas/r8a7792-wheat.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/renesas/r8a7792-wheat.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/renesas/r8a7792-wheat.dts
Extension
.dts
Size
6246 bytes
Lines
353
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
/*
 * Device Tree Source for the Wheat board
 *
 * Copyright (C) 2016 Renesas Electronics Corporation
 * Copyright (C) 2016 Cogent  Embedded, Inc.
 */

/dts-v1/;
#include "r8a7792.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>

/ {
	model = "Wheat";
	compatible = "renesas,wheat", "renesas,r8a7792";

	aliases {
		serial0 = &scif0;
	};

	chosen {
		bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
		stdout-path = "serial0:115200n8";
	};

	memory@40000000 {
		device_type = "memory";
		reg = <0 0x40000000 0 0x40000000>;
	};

	d1_8v: regulator-1v8 {
		compatible = "regulator-fixed";
		regulator-name = "D1.8V";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-boot-on;
		regulator-always-on;
	};

	d3_3v: regulator-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "D3.3V";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		regulator-always-on;
	};

	keyboard {
		compatible = "gpio-keys";

		key-a {
			linux,code = <KEY_A>;
			label = "SW2";
			wakeup-source;
			debounce-interval = <20>;
			gpios = <&gpio3 20 GPIO_ACTIVE_LOW>;
		};
		key-b {
			linux,code = <KEY_B>;
			label = "SW3";
			wakeup-source;
			debounce-interval = <20>;
			gpios = <&gpio11 2 GPIO_ACTIVE_LOW>;
		};
	};

	vcc_sdhi0: regulator-vcc-sdhi0 {
		compatible = "regulator-fixed";

Annotation

Implementation Notes