arch/arm/boot/dts/samsung/exynos5250-smdk5250.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/samsung/exynos5250-smdk5250.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/samsung/exynos5250-smdk5250.dts
Extension
.dts
Size
9887 bytes
Lines
468
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 SMDK5250 board device tree source
 *
 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com
 */

/dts-v1/;
#include <dt-bindings/clock/maxim,max77686.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include "exynos5250.dtsi"

/ {
	model = "Samsung SMDK5250 board based on Exynos5250";
	compatible = "samsung,smdk5250", "samsung,exynos5250", "samsung,exynos5";

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

	memory@40000000 {
		device_type = "memory";
		reg = <0x40000000 0x80000000>;
	};

	chosen {
		bootargs = "root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M init=/linuxrc";
		stdout-path = "serial2:115200n8";
	};

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

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

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

	sound {
		compatible = "samsung,smdk-wm8994";

		samsung,i2s-controller = <&i2s0>;
		samsung,audio-codec = <&wm8994>;
	};

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

Annotation

Implementation Notes