arch/arm/boot/dts/amazon/alpine.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/amazon/alpine.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/amazon/alpine.dtsi
Extension
.dtsi
Size
4627 bytes
Lines
176
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

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

/ {
	#address-cells = <2>;
	#size-cells = <2>;
	/* SOC compatibility */
	compatible = "al,alpine";

	memory {
		device_type = "memory";
		reg = <0 0 0 0>;
	};

	/* CPU Configuration */
	cpus {
		#address-cells = <1>;
		#size-cells = <0>;
		enable-method = "al,alpine-smp";

		cpu@0 {
			compatible = "arm,cortex-a15";
			device_type = "cpu";
			reg = <0>;
			clock-frequency = <1700000000>;
		};

		cpu@1 {
			compatible = "arm,cortex-a15";
			device_type = "cpu";
			reg = <1>;
			clock-frequency = <1700000000>;
		};

		cpu@2 {
			compatible = "arm,cortex-a15";
			device_type = "cpu";
			reg = <2>;
			clock-frequency = <1700000000>;
		};

		cpu@3 {
			compatible = "arm,cortex-a15";
			device_type = "cpu";
			reg = <3>;
			clock-frequency = <1700000000>;
		};
	};

	soc {
		#address-cells = <2>;
		#size-cells = <2>;
		compatible = "simple-bus";
		interrupt-parent = <&gic>;
		ranges;

		arch-timer {
			compatible = "arm,cortex-a15-timer",
				     "arm,armv7-timer";
			interrupts =
				<GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
				<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
				<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
				<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
			clock-frequency = <50000000>;
		};

		/* Interrupt Controller */
		gic: interrupt-controller@fb001000 {
			compatible = "arm,cortex-a15-gic";
			#interrupt-cells = <3>;

Annotation

Implementation Notes