arch/arm64/boot/dts/amlogic/meson-a1-ad402.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/amlogic/meson-a1-ad402.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/amlogic/meson-a1-ad402.dts
Extension
.dts
Size
3719 bytes
Lines
193
Domain
Architecture Layer
Bucket
arch/arm64
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+ OR MIT)
/*
 * Copyright (c) 2023 SberDevices
 * Author: Dmitry Rokosov <ddrokosov@sberdevices.ru>
 */

/dts-v1/;

#include "meson-a1.dtsi"
#include <dt-bindings/thermal/thermal.h>

/ {
	compatible = "amlogic,ad402", "amlogic,a1";
	model = "Amlogic Meson A1 AD402 Development Board";

	aliases {
		serial0 = &uart_AO_B;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	memory@0 {
		device_type = "memory";
		reg = <0x0 0x0 0x0 0x8000000>;
	};

	reserved-memory {
		/* 3 MiB reserved for Amlogic Trust OS (BL32) */
		secos_reserved: secos@3d00000 {
			reg = <0x0 0x03d00000 0x0 0x300000>;
			no-map;
		};
	};

	firmware {
		optee {
			compatible = "linaro,optee-tz";
			method = "smc";
		};
	};

	battery_4v2: regulator-battery-4v2 {
		compatible = "regulator-fixed";
		regulator-name = "4V2";
		regulator-min-microvolt = <4200000>;
		regulator-max-microvolt = <4200000>;
		regulator-always-on;
	};

	vddq_1v35: regulator-vddq-1v35 {
		compatible = "regulator-fixed";
		regulator-name = "VDDQ_1V35";
		regulator-min-microvolt = <1350000>;
		regulator-max-microvolt = <1350000>;
		vin-supply = <&battery_4v2>;
		regulator-always-on;
	};

	vddao_3v3: regulator-vddao-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "VDDAO_3V3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		vin-supply = <&battery_4v2>;
		regulator-always-on;
	};

	vcc_3v3: regulator-vcc-3v3 {

Annotation

Implementation Notes