arch/arm/boot/dts/renesas/r8a7745-iwg22d-sodimm.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/renesas/r8a7745-iwg22d-sodimm.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/renesas/r8a7745-iwg22d-sodimm.dts
Extension
.dts
Size
6122 bytes
Lines
329
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 iWave-RZG1E SODIMM carrier board
 *
 * Copyright (C) 2017 Renesas Electronics Corp.
 */

/*
 * SSI-SGTL5000
 *
 * This command is required when Playback/Capture
 *
 *      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 "r8a7745-iwg22m.dtsi"
#include <dt-bindings/pwm/pwm.h>

/ {
	model = "iWave Systems RainboW-G22D-SODIMM board based on RZ/G1E";
	compatible = "iwave,g22d", "iwave,g22m", "renesas,r8a7745";

	aliases {
		ethernet0 = &avb;
		serial3 = &scif4;
		serial5 = &hscif1;
	};

	chosen {
		bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
		stdout-path = "serial3:115200n8";
	};

	audio_clock: audio_clock {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <26000000>;
	};

	backlight_lcd: backlight {
		compatible = "pwm-backlight";
		pwms = <&tpu 3 5000000 PWM_POLARITY_INVERTED>;
		brightness-levels = <0 4 8 16 32 64 128 255>;
		default-brightness-level = <7>;
	};

	lcd_panel: lcd {
		compatible = "edt,etm043080dh6gp";
		power-supply = <&vccq_panel>;
		backlight = <&backlight_lcd>;

		port {
			lcd_in: endpoint {
				remote-endpoint = <&du_out_rgb0>;

Annotation

Implementation Notes