arch/arm/boot/dts/socionext/uniphier-sld8.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/socionext/uniphier-sld8.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/socionext/uniphier-sld8.dtsi
Extension
.dtsi
Size
11224 bytes
Lines
437
Domain
Architecture Layer
Bucket
arch/arm
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 UniPhier sLD8 SoC
//
// Copyright (C) 2015-2016 Socionext Inc.
//   Author: Masahiro Yamada <yamada.masahiro@socionext.com>

#include <dt-bindings/gpio/uniphier-gpio.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>

/ {
	compatible = "socionext,uniphier-sld8";
	#address-cells = <1>;
	#size-cells = <1>;

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

		cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-a9";
			reg = <0>;
			enable-method = "psci";
			next-level-cache = <&l2>;
		};
	};

	psci {
		compatible = "arm,psci-0.2";
		method = "smc";
	};

	clocks {
		refclk: ref {
			compatible = "fixed-clock";
			#clock-cells = <0>;
			clock-frequency = <25000000>;
		};

		arm_timer_clk: arm-timer {
			#clock-cells = <0>;
			compatible = "fixed-clock";
			clock-frequency = <50000000>;
		};
	};

	soc {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;
		interrupt-parent = <&intc>;

		l2: cache-controller@500c0000 {
			compatible = "socionext,uniphier-system-cache";
			reg = <0x500c0000 0x2000>, <0x503c0100 0x4>,
			      <0x506c0000 0x400>;
			interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>,
				     <GIC_SPI 175 IRQ_TYPE_LEVEL_HIGH>;
			cache-unified;
			cache-size = <(256 * 1024)>;
			cache-sets = <256>;
			cache-line-size = <128>;
			cache-level = <2>;
		};

		spi: spi@54006000 {
			compatible = "socionext,uniphier-scssi";
			status = "disabled";

Annotation

Implementation Notes