arch/arm64/boot/dts/nuvoton/nuvoton-npcm845.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/nuvoton/nuvoton-npcm845.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/nuvoton/nuvoton-npcm845.dtsi
Extension
.dtsi
Size
1787 bytes
Lines
79
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
// Copyright (c) 2021 Nuvoton Technology tomer.maimon@nuvoton.com

#include "nuvoton-common-npcm8xx.dtsi"

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

	cpus {
		#address-cells = <2>;
		#size-cells = <0>;

		cpu0: cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-a35";
			clocks = <&clk NPCM8XX_CLK_CPU>;
			reg = <0x0 0x0>;
			next-level-cache = <&l2>;
			enable-method = "psci";
		};

		cpu1: cpu@1 {
			device_type = "cpu";
			compatible = "arm,cortex-a35";
			clocks = <&clk NPCM8XX_CLK_CPU>;
			reg = <0x0 0x1>;
			next-level-cache = <&l2>;
			enable-method = "psci";
		};

		cpu2: cpu@2 {
			device_type = "cpu";
			compatible = "arm,cortex-a35";
			clocks = <&clk NPCM8XX_CLK_CPU>;
			reg = <0x0 0x2>;
			next-level-cache = <&l2>;
			enable-method = "psci";
		};

		cpu3: cpu@3 {
			device_type = "cpu";
			compatible = "arm,cortex-a35";
			clocks = <&clk NPCM8XX_CLK_CPU>;
			reg = <0x0 0x3>;
			next-level-cache = <&l2>;
			enable-method = "psci";
		};

		l2: l2-cache {
			compatible = "cache";
			cache-level = <2>;
			cache-unified;
		};
	};

	arm-pmu {
		compatible = "arm,cortex-a35-pmu";
		interrupts = <GIC_SPI 242 IRQ_TYPE_LEVEL_HIGH>,
			     <GIC_SPI 243 IRQ_TYPE_LEVEL_HIGH>,
			     <GIC_SPI 244 IRQ_TYPE_LEVEL_HIGH>,
			     <GIC_SPI 245 IRQ_TYPE_LEVEL_HIGH>;
		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
	};

	psci {
		compatible = "arm,psci-1.0";
		method = "smc";
	};

Annotation

Implementation Notes