arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
Extension
.dtsi
Size
5970 bytes
Lines
313
Domain
Architecture Layer
Bucket
arch/arm64
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 OR BSD-2-Clause)
/*
 * Device Tree Source for the RZ SMARC Carrier-II Board.
 *
 * Copyright (C) 2023 Renesas Electronics Corp.
 */

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>

/ {
	aliases {
		i2c0 = &i2c0;
		serial0 = &scif1;
		serial1 = &scif3;
		serial3 = &scif0;
		mmc1 = &sdhi1;
	};

	chosen {
		bootargs = "ignore_loglevel";
		stdout-path = "serial3:115200n8";
	};

	keys {
		compatible = "gpio-keys";

		key-1 {
			interrupts-extended = <&pinctrl RZG2L_GPIO(18, 0) IRQ_TYPE_EDGE_FALLING>;
			linux,code = <KEY_1>;
			label = "USER_SW1";
			wakeup-source;
			debounce-interval = <20>;
		};

		key-2 {
			interrupts-extended = <&pinctrl RZG2L_GPIO(0, 1) IRQ_TYPE_EDGE_FALLING>;
			linux,code = <KEY_2>;
			label = "USER_SW2";
			wakeup-source;
			debounce-interval = <20>;
		};

		key-3 {
			interrupts-extended = <&pinctrl RZG2L_GPIO(0, 3) IRQ_TYPE_EDGE_FALLING>;
			linux,code = <KEY_3>;
			label = "USER_SW3";
			wakeup-source;
			debounce-interval = <20>;
		};
	};

	snd_rzg3s: sound {
		compatible = "simple-audio-card";
		simple-audio-card,format = "i2s";
		simple-audio-card,bitclock-master = <&cpu_dai>;
		simple-audio-card,frame-master = <&cpu_dai>;
		simple-audio-card,mclk-fs = <256>;

		cpu_dai: simple-audio-card,cpu {
			sound-dai = <&ssi3>;
		};

		codec_dai: simple-audio-card,codec {
			sound-dai = <&da7212>;
			clocks = <&versa3 1>;
		};
	};

Annotation

Implementation Notes