arch/arm64/boot/dts/mediatek/mt7986a.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/mediatek/mt7986a.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/mediatek/mt7986a.dtsi
Extension
.dtsi
Size
18085 bytes
Lines
666
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) 2021 MediaTek Inc.
 * Author: Sam.Shih <sam.shih@mediatek.com>
 */

#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/mt7986-clk.h>
#include <dt-bindings/reset/mt7986-resets.h>
#include <dt-bindings/phy/phy.h>

/ {
	compatible = "mediatek,mt7986a";
	interrupt-parent = <&gic>;
	#address-cells = <2>;
	#size-cells = <2>;

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;
		cpu0: cpu@0 {
			compatible = "arm,cortex-a53";
			reg = <0x0>;
			device_type = "cpu";
			enable-method = "psci";
			#cooling-cells = <2>;
		};

		cpu1: cpu@1 {
			compatible = "arm,cortex-a53";
			reg = <0x1>;
			device_type = "cpu";
			enable-method = "psci";
			#cooling-cells = <2>;
		};

		cpu2: cpu@2 {
			compatible = "arm,cortex-a53";
			reg = <0x2>;
			device_type = "cpu";
			enable-method = "psci";
			#cooling-cells = <2>;
		};

		cpu3: cpu@3 {
			compatible = "arm,cortex-a53";
			reg = <0x3>;
			device_type = "cpu";
			enable-method = "psci";
			#cooling-cells = <2>;
		};
	};

	clk40m: oscillator-40m {
		compatible = "fixed-clock";
		clock-frequency = <40000000>;
		#clock-cells = <0>;
		clock-output-names = "clkxtal";
	};

	psci {
		compatible = "arm,psci-0.2";
		method = "smc";
	};

	reserved-memory {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

Annotation

Implementation Notes