arch/arm/boot/dts/renesas/r8a7779-marzen.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/renesas/r8a7779-marzen.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/renesas/r8a7779-marzen.dts
Extension
.dts
Size
6182 bytes
Lines
367
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 R-Car H1 (R8A77790) Marzen board
 *
 * Copyright (C) 2013 Renesas Solutions Corp.
 * Copyright (C) 2013 Simon Horman
 */

/dts-v1/;
#include "r8a7779.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/irq.h>

/ {
	model = "marzen";
	compatible = "renesas,marzen", "renesas,r8a7779";

	aliases {
		serial0 = &scif2;
		serial1 = &scif4;
	};

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

	memory@60000000 {
		device_type = "memory";
		reg = <0x60000000 0x40000000>;
	};

	fixedregulator3v3: regulator-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "fixed-3.3V";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		regulator-always-on;
	};

	vccq_sdhi0: regulator-vccq-sdhi0 {
		compatible = "regulator-gpio";

		regulator-name = "SDHI0 VccQ";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <3300000>;

		gpios = <&gpio3 20 GPIO_ACTIVE_HIGH>;
		gpios-states = <1>;
		states = <3300000 1>, <1800000 0>;
	};

	keypad-0 {
		compatible = "gpio-keys";

		pinctrl-0 = <&keypad0_pins>;
		pinctrl-names = "default";

		key-1 {
			interrupts-extended = <&gpio0 17 IRQ_TYPE_EDGE_FALLING>;
			linux,code = <KEY_1>;
			label = "SW1-1";
			wakeup-source;
			debounce-interval = <20>;
		};
		key-2 {
			interrupts-extended = <&gpio0 18 IRQ_TYPE_EDGE_FALLING>;
			linux,code = <KEY_2>;

Annotation

Implementation Notes