arch/arm/boot/dts/mediatek/mt6589.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/mediatek/mt6589.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/mediatek/mt6589.dtsi
Extension
.dtsi
Size
3440 bytes
Lines
153
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+
/*
 * Copyright (c) 2014 MundoReader S.L.
 * Author: Matthias Brugger <matthias.bgg@gmail.com>
 *
*/

#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>

/ {
	#address-cells = <1>;
	#size-cells = <1>;
	compatible = "mediatek,mt6589";
	interrupt-parent = <&sysirq>;

	cpus: cpus {
		#address-cells = <1>;
		#size-cells = <0>;
		enable-method = "mediatek,mt6589-smp";

		cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-a7";
			reg = <0x0>;
		};
		cpu@1 {
			device_type = "cpu";
			compatible = "arm,cortex-a7";
			reg = <0x1>;
		};
		cpu@2 {
			device_type = "cpu";
			compatible = "arm,cortex-a7";
			reg = <0x2>;
		};
		cpu@3 {
			device_type = "cpu";
			compatible = "arm,cortex-a7";
			reg = <0x3>;
		};

	};

	timer {
		compatible = "arm,armv7-timer";
		interrupt-parent = <&gic>;
		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
		clock-frequency = <13000000>;
		arm,cpu-registers-not-fw-configured;
	};

	clocks {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "simple-bus";
		ranges;

		system_clk: dummy13m {
			compatible = "fixed-clock";
			clock-frequency = <13000000>;
			#clock-cells = <0>;
		};

		rtc_clk: dummy32k {
			compatible = "fixed-clock";
			clock-frequency = <32000>;

Annotation

Implementation Notes