arch/arm/boot/dts/renesas/r8a7790-lager.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/renesas/r8a7790-lager.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/renesas/r8a7790-lager.dts
Extension
.dts
Size
17340 bytes
Lines
954
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 Lager board
 *
 * Copyright (C) 2013-2014 Renesas Solutions Corp.
 * Copyright (C) 2014 Cogent Embedded, Inc.
 * Copyright (C) 2015-2016 Renesas Electronics Corporation
 */

/*
 * SSI-AK4643
 *
 * SW1: 1: AK4643
 *      2: CN22
 *      3: ADV7511
 *
 * This command is required when Playback/Capture
 *
 *	amixer set "LINEOUT Mixer DACL" on
 *	amixer set "DVC Out" 100%
 *	amixer set "DVC In" 100%
 *
 * You can use Mute
 *
 *	amixer set "DVC Out Mute" on
 *	amixer set "DVC In Mute" on
 *
 * You can use Volume Ramp
 *
 *	amixer set "DVC Out Ramp Up Rate"   "0.125 dB/64 steps"
 *	amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps"
 *	amixer set "DVC Out Ramp" on
 *	aplay xxx.wav &
 *	amixer set "DVC Out"  80%  // Volume Down
 *	amixer set "DVC Out" 100%  // Volume Up
 */

/dts-v1/;
#include "r8a7790.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>

/ {
	model = "Lager";
	compatible = "renesas,lager", "renesas,r8a7790";

	aliases {
		serial0 = &scif0;
		serial1 = &scifa1;
		i2c8 = &gpioi2c1;
		i2c9 = &gpioi2c2;
		i2c10 = &i2cexio0;
		i2c11 = &i2cexio1;
		i2c12 = &i2chdmi;
		i2c13 = &i2cpwr;
		mmc0 = &mmcif1;
		mmc1 = &sdhi0;
		mmc2 = &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>;
	};

Annotation

Implementation Notes