arch/arm64/boot/dts/renesas/r9a09g011.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/renesas/r9a09g011.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/renesas/r9a09g011.dtsi
Extension
.dtsi
Size
12264 bytes
Lines
378
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-only OR BSD-2-Clause)
/*
 * Device Tree Source for the RZ/V2M SoC
 *
 * Copyright (C) 2022 Renesas Electronics Corp.
 */

#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/r9a09g011-cpg.h>

/ {
	compatible = "renesas,r9a09g011";
	#address-cells = <2>;
	#size-cells = <2>;
	interrupt-parent = <&gic>;

	/* clock can be either from exclk or crystal oscillator (XIN/XOUT) */
	extal_clk: extal {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		/* This value must be overridden by the board */
		clock-frequency = <0>;
	};

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

		cpu-map {
			cluster0 {
				core0 {
					cpu = <&cpu0>;
				};
			};
		};

		cpu0: cpu@0 {
			compatible = "arm,cortex-a53";
			reg = <0>;
			device_type = "cpu";
			next-level-cache = <&L2_CA53>;
			clocks = <&cpg CPG_MOD R9A09G011_CA53_CLK>;
		};

		L2_CA53: cache-controller-0 {
			compatible = "cache";
			cache-unified;
			cache-level = <2>;
		};
	};

	soc: soc {
		compatible = "simple-bus";
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		gic: interrupt-controller@82010000 {
			compatible = "arm,gic-400";
			#interrupt-cells = <3>;
			#address-cells = <0>;
			interrupt-controller;
			reg = <0x0 0x82010000 0 0x1000>,
			      <0x0 0x82020000 0 0x20000>,
			      <0x0 0x82040000 0 0x20000>,
			      <0x0 0x82060000 0 0x20000>;
			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_HIGH)>;
			clocks = <&cpg CPG_MOD R9A09G011_GIC_CLK>;
			clock-names = "clk";
		};

Annotation

Implementation Notes