arch/arm64/boot/dts/renesas/r8a779h0.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/renesas/r8a779h0.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/renesas/r8a779h0.dtsi
Extension
.dtsi
Size
63034 bytes
Lines
2346
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 R-Car V4M (R8A779H0) SoC
 *
 * Copyright (C) 2023 Renesas Electronics Corp.
 */

#include <dt-bindings/clock/renesas,r8a779h0-cpg-mssr.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/power/renesas,r8a779h0-sysc.h>

/ {
	compatible = "renesas,r8a779h0";
	#address-cells = <2>;
	#size-cells = <2>;
	interrupt-parent = <&gic>;

	/* External Audio clock - to be overridden by boards that provide it */
	audio_clkin: audio_clkin {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <0>;
	};

	/* External CAN clock - to be overridden by boards that provide it */
	can_clk: can-clk {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <0>;
	};

	cluster0_opp: opp-table-0 {
		compatible = "operating-points-v2";

		opp-500000000 {
			opp-hz = /bits/ 64 <500000000>;
			opp-microvolt = <825000>;
			clock-latency-ns = <500000>;
		};
		opp-1000000000 {
			opp-hz = /bits/ 64 <1000000000>;
			opp-microvolt = <825000>;
			clock-latency-ns = <500000>;
		};
	};

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

		cpu-map {
			cluster0 {
				core0 {
					cpu = <&a76_0>;
				};
				core1 {
					cpu = <&a76_1>;
				};
				core2 {
					cpu = <&a76_2>;
				};
				core3 {
					cpu = <&a76_3>;
				};
			};
		};

		a76_0: cpu@0 {
			compatible = "arm,cortex-a76";
			reg = <0>;

Annotation

Implementation Notes