arch/arm/boot/dts/samsung/exynos4210-origen.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/samsung/exynos4210-origen.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/samsung/exynos4210-origen.dts
Extension
.dts
Size
7683 bytes
Lines
373
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's Exynos4210 based Origen board device tree source
 *
 * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com
 * Copyright (c) 2010-2011 Linaro Ltd.
 *		www.linaro.org
 *
 * Device tree source file for Insignal's Origen board which is based on
 * Samsung's Exynos4210 SoC.
 */

/dts-v1/;
#include "exynos4210.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
#include "exynos-mfc-reserved-memory.dtsi"

/ {
	model = "Insignal Origen evaluation board based on Exynos4210";
	compatible = "insignal,origen", "samsung,exynos4210", "samsung,exynos4";

	memory@40000000 {
		device_type = "memory";
		reg = <0x40000000 0x10000000
		       0x50000000 0x10000000
		       0x60000000 0x10000000
		       0x70000000 0x10000000>;
	};

	aliases {
		mmc0 = &sdhci_0;
		mmc1 = &sdhci_2;
	};

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

	mmc_reg: voltage-regulator {
		compatible = "regulator-fixed";
		regulator-name = "VMEM_VDD_2.8V";
		regulator-min-microvolt = <2800000>;
		regulator-max-microvolt = <2800000>;
		gpio = <&gpx1 1 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};

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

		key-up {
			label = "Up";
			gpios = <&gpx2 0 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_UP>;
			wakeup-source;
		};

		key-down {
			label = "Down";
			gpios = <&gpx2 1 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_DOWN>;
			wakeup-source;
		};

		key-back {
			label = "Back";

Annotation

Implementation Notes