arch/arm/boot/dts/samsung/exynos5420-smdk5420.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/samsung/exynos5420-smdk5420.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/samsung/exynos5420-smdk5420.dts
Extension
.dts
Size
9620 bytes
Lines
436
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
/*
 * Samsung SMDK5420 board device tree source
 *
 * Copyright (c) 2013 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com
 */

/dts-v1/;
#include "exynos5420.dtsi"
#include "exynos5420-cpus.dtsi"
#include <dt-bindings/clock/samsung,s2mps11.h>
#include <dt-bindings/gpio/gpio.h>

/ {
	model = "Samsung SMDK5420 board based on Exynos5420";
	compatible = "samsung,smdk5420", "samsung,exynos5420", "samsung,exynos5";

	memory@20000000 {
		device_type = "memory";
		reg = <0x20000000 0x80000000>;
	};

	aliases {
		mmc0 = &mmc_0;
		mmc1 = &mmc_2;
	};

	chosen {
		bootargs = "init=/linuxrc";
		stdout-path = "serial2:115200n8";
	};

	fixed-rate-clocks {
		oscclk {
			compatible = "samsung,exynos5420-oscclk";
			clock-frequency = <24000000>;
		};
	};

	vdd: regulator-0 {
		compatible = "regulator-fixed";
		regulator-name = "vdd-supply";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-always-on;
	};

	dbvdd: regulator-1 {
		compatible = "regulator-fixed";
		regulator-name = "dbvdd-supply";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};

	spkvdd: regulator-2 {
		compatible = "regulator-fixed";
		regulator-name = "spkvdd-supply";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		regulator-always-on;
	};

	usb300_vbus_reg: regulator-3 {
		compatible = "regulator-fixed";
		regulator-name = "VBUS0";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		gpio = <&gpg0 5 GPIO_ACTIVE_HIGH>;

Annotation

Implementation Notes