arch/loongarch/boot/dts/loongson-2k2000.dtsi

Source file repositories/reference/linux-study-clean/arch/loongarch/boot/dts/loongson-2k2000.dtsi

File Facts

System
Linux kernel
Corpus path
arch/loongarch/boot/dts/loongson-2k2000.dtsi
Extension
.dtsi
Size
11362 bytes
Lines
449
Domain
Architecture Layer
Bucket
arch/loongarch
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) 2023 Loongson Technology Corporation Limited
 */

/dts-v1/;

#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/clock/loongson,ls2k-clk.h>

/ {
	#address-cells = <2>;
	#size-cells = <2>;

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;

		cpu0: cpu@1 {
			compatible = "loongson,la364";
			device_type = "cpu";
			reg = <0x0>;
			clocks = <&clk LOONGSON2_NODE_CLK>;
		};

		cpu1: cpu@2 {
			compatible = "loongson,la364";
			device_type = "cpu";
			reg = <0x1>;
			clocks = <&clk LOONGSON2_NODE_CLK>;
		};
	};

	ref_100m: clock-ref-100m {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <100000000>;
		clock-output-names = "ref_100m";
	};

	cpuintc: interrupt-controller {
		compatible = "loongson,cpu-interrupt-controller";
		#interrupt-cells = <1>;
		interrupt-controller;
	};

	thermal-zones {
		cpu-thermal {
			polling-delay-passive = <1000>;
			polling-delay = <5000>;
			thermal-sensors = <&tsensor 0>;

			trips {
				cpu-alert {
					temperature = <40000>;
					hysteresis = <2000>;
					type = "active";
				};

				cpu-crit {
					temperature = <85000>;
					hysteresis = <5000>;
					type = "critical";
				};
			};
		};
	};

	bus@10000000 {
		compatible = "simple-bus";

Annotation

Implementation Notes