arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
Extension
.dtsi
Size
15731 bytes
Lines
674
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 UniPhier LD11 SoC
//
// Copyright (C) 2016 Socionext Inc.
//   Author: Masahiro Yamada <yamada.masahiro@socionext.com>

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

/ {
	compatible = "socionext,uniphier-ld11";
	#address-cells = <2>;
	#size-cells = <2>;
	interrupt-parent = <&gic>;

	cpus {
		#address-cells = <2>;
		#size-cells = <0>;

		cpu-map {
			cluster0 {
				core0 {
					cpu = <&cpu0>;
				};
				core1 {
					cpu = <&cpu1>;
				};
			};
		};

		cpu0: cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-a53";
			reg = <0 0x000>;
			clocks = <&sys_clk 33>;
			enable-method = "psci";
			next-level-cache = <&l2>;
			operating-points-v2 = <&cluster0_opp>;
		};

		cpu1: cpu@1 {
			device_type = "cpu";
			compatible = "arm,cortex-a53";
			reg = <0 0x001>;
			clocks = <&sys_clk 33>;
			enable-method = "psci";
			next-level-cache = <&l2>;
			operating-points-v2 = <&cluster0_opp>;
		};

		l2: l2-cache {
			compatible = "cache";
			cache-level = <2>;
			cache-unified;
		};
	};

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

		opp-245000000 {
			opp-hz = /bits/ 64 <245000000>;
			clock-latency-ns = <300>;
		};
		opp-250000000 {
			opp-hz = /bits/ 64 <250000000>;
			clock-latency-ns = <300>;

Annotation

Implementation Notes