arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
Extension
.dtsi
Size
4295 bytes
Lines
242
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 OR MIT)
/*
 * Device Tree Source for the Spider CPU board
 *
 * Copyright (C) 2021 Renesas Electronics Corp.
 */

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>

#include "r8a779f0.dtsi"

/ {
	model = "Renesas Spider CPU board";
	compatible = "renesas,spider-cpu", "renesas,r8a779f0";

	aliases {
		i2c0 = &i2c0;
		i2c1 = &i2c1;
		i2c2 = &i2c2;
		i2c3 = &i2c3;
		i2c4 = &i2c4;
		i2c5 = &i2c5;
		serial0 = &hscif0;
		serial1 = &scif0;
	};

	chosen {
		bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
		stdout-path = "serial0:1843200n8";
	};

	leds {
		compatible = "gpio-leds";

		led-7 {
			gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
			color = <LED_COLOR_ID_GREEN>;
			function = LED_FUNCTION_INDICATOR;
			function-enumerator = <7>;
		};

		led-8 {
			gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
			color = <LED_COLOR_ID_GREEN>;
			function = LED_FUNCTION_INDICATOR;
			function-enumerator = <8>;
		};
	};

	memory@48000000 {
		device_type = "memory";
		/* first 128MB is reserved for secure area. */
		reg = <0x0 0x48000000 0x0 0x78000000>;
	};

	memory@480000000 {
		device_type = "memory";
		reg = <0x4 0x80000000 0x0 0x80000000>;
	};

	rc21012_pci: clk-rc21012-pci {
		compatible = "fixed-clock";
		clock-frequency = <100000000>;
		#clock-cells = <0>;
	};

	rc21012_ufs: clk-rc21012-ufs {
		compatible = "fixed-clock";
		clock-frequency = <38400000>;

Annotation

Implementation Notes