arch/arm/boot/dts/renesas/r8a7791-porter.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/renesas/r8a7791-porter.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/renesas/r8a7791-porter.dts
Extension
.dts
Size
9464 bytes
Lines
545
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 Porter board
 *
 * Copyright (C) 2015 Cogent Embedded, Inc.
 */

/*
 * SSI-AK4642
 *
 * JP3: 2-1: AK4642
 *      2-3: ADV7511
 *
 * This command is required before playback/capture:
 *
 *	amixer set "LINEOUT Mixer DACL" on
 */

/dts-v1/;
#include "r8a7791.dtsi"
#include <dt-bindings/gpio/gpio.h>

/ {
	model = "Porter";
	compatible = "renesas,porter", "renesas,r8a7791";

	aliases {
		serial0 = &scif0;
		i2c9 = &gpioi2c2;
		i2c10 = &i2chdmi;
		mmc0 = &sdhi0;
		mmc1 = &sdhi2;
	};

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

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

	memory@200000000 {
		device_type = "memory";
		reg = <2 0x00000000 0 0x40000000>;
	};

	reg_1p8v: regulator-1v8 {
		compatible = "regulator-fixed";
		regulator-name = "fixed-1.8V";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-boot-on;
		regulator-always-on;
	};

	reg_3p3v: regulator-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "fixed-3.3V";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		regulator-always-on;
	};

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

Annotation

Implementation Notes