arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi
Extension
.dtsi
Size
31802 bytes
Lines
1340
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 Exynos4212 based Galaxy Tab 3 board common source
 *
 * Copyright (c) 2013 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com
 */

/dts-v1/;
#include "exynos4212.dtsi"
#include "exynos4412-ppmu-common.dtsi"
#include "exynos-mfc-reserved-memory.dtsi"
#include <dt-bindings/clock/samsung,s2mps11.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/input/gpio-keys.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include "exynos-pinctrl.h"

/ {
	compatible = "samsung,tab3", "samsung,exynos4212", "samsung,exynos4";

	memory@40000000 {
		device_type = "memory";

		/*
		 * Technically 1.5GB is available, but the latter 512MB is handled
		 * in a special way by downstream (every second page is skipped),
		 * and thus doesn't initialize correctly on mainline. Only 1020M is
		 * used for now.
		 */
		reg = <0x40000000 0x3fc00000>;
	};

	aliases {
		mmc0 = &mshc_0;   /* Internal storage */
		mmc1 = &sdhci_2;  /* SD card */
		mmc2 = &sdhci_3;  /* WiFi */
	};

	chosen {
		stdout-path = &serial_2;

		/* Default S-BOOT bootloader loads initramfs here */
		linux,initrd-start = <0x42000000>;
		linux,initrd-end = <0x42800000>;

		/*
		 * Stock bootloader provides incorrect memory size in ATAG_MEM;
		 * override it here
		 */
		linux,usable-memory-range = <0x40000000 0x3fc00000>;
	};

	firmware@204f000 {
		compatible = "samsung,secure-firmware";
		reg = <0x0204F000 0x1000>;
	};

	fixed-rate-clocks {
		xxti {
			compatible = "samsung,clock-xxti";
			clock-frequency = <0>;
		};

		xusbxti {
			compatible = "samsung,clock-xusbxti";
			clock-frequency = <24000000>;
		};

Annotation

Implementation Notes