arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/nuvoton/nuvoton-common-npcm8xx.dtsi
Extension
.dtsi
Size
18368 bytes
Lines
882
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 <dt-bindings/clock/nuvoton,npcm845-clk.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>

/ {
	#address-cells = <2>;
	#size-cells = <2>;
	interrupt-parent = <&gic>;

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

		gcr: system-controller@f0800000 {
			compatible = "nuvoton,npcm845-gcr", "syscon";
			reg = <0x0 0xf0800000 0x0 0x1000>;
		};

		gic: interrupt-controller@dfff9000 {
			compatible = "arm,gic-400";
			reg = <0x0 0xdfff9000 0x0 0x1000>,
			      <0x0 0xdfffa000 0x0 0x2000>,
			      <0x0 0xdfffc000 0x0 0x2000>,
			      <0x0 0xdfffe000 0x0 0x2000>;
			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
			#interrupt-cells = <3>;
			interrupt-controller;
			#address-cells = <0>;
		};
	};

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

		clk: rstc: reset-controller@f0801000 {
			compatible = "nuvoton,npcm845-reset";
			reg = <0x0 0xf0801000 0x0 0xC4>;
			nuvoton,sysgcr = <&gcr>;
			#reset-cells = <2>;
			clocks = <&refclk>;
			#clock-cells = <1>;
		};

		apb {
			#address-cells = <1>;
			#size-cells = <1>;
			compatible = "simple-bus";
			interrupt-parent = <&gic>;
			ranges = <0x0 0x0 0xf0000000 0x00300000>,
				<0xfff00000 0x0 0xfff00000 0x00016000>;

			peci: peci-controller@100000 {
				compatible = "nuvoton,npcm845-peci";
				reg = <0x100000 0x1000>;
				interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
				clocks = <&clk NPCM8XX_CLK_APB3>;
				cmd-timeout-ms = <1000>;
				status = "disabled";
			};

Annotation

Implementation Notes