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.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Dependency Surface
exynos5420.dtsiexynos5420-cpus.dtsidt-bindings/clock/samsung,s2mps11.hdt-bindings/gpio/gpio.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
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
- Immediate include surface: `exynos5420.dtsi`, `exynos5420-cpus.dtsi`, `dt-bindings/clock/samsung,s2mps11.h`, `dt-bindings/gpio/gpio.h`.
- Atlas domain: Architecture Layer / arch/arm.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.