arch/arm64/boot/dts/amd/elba.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/amd/elba.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/amd/elba.dtsi
Extension
.dtsi
Size
4553 bytes
Lines
192
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)
/*
 * Copyright 2020-2022 Advanced Micro Devices, Inc.
 */

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

/ {
	model = "Elba ASIC Board";
	compatible = "amd,pensando-elba";
	interrupt-parent = <&gic>;
	#address-cells = <2>;
	#size-cells = <2>;

	dma-coherent;

	ahb_clk: oscillator0 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
	};

	emmc_clk: oscillator2 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
	};

	flash_clk: oscillator3 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
	};

	ref_clk: oscillator4 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
	};

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

	timer {
		compatible = "arm,armv8-timer";
		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
	};

	pmu {
		compatible = "arm,cortex-a72-pmu";
		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
	};

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

		i2c0: i2c@400 {
			compatible = "snps,designware-i2c";
			reg = <0x0 0x400 0x0 0x100>;
			clocks = <&ahb_clk>;
			#address-cells = <1>;
			#size-cells = <0>;
			i2c-sda-hold-time-ns = <480>;
			interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
			status = "disabled";

Annotation

Implementation Notes