arch/arm64/boot/dts/marvell/armada-37xx.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/marvell/armada-37xx.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/marvell/armada-37xx.dtsi
Extension
.dtsi
Size
13119 bytes
Lines
538
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 Include file for Marvell Armada 37xx family of SoCs.
 *
 * Copyright (C) 2016 Marvell
 *
 * Gregory CLEMENT <gregory.clement@free-electrons.com>
 *
 */

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

/ {
	interrupt-parent = <&gic>;
	#address-cells = <2>;
	#size-cells = <2>;

	aliases {
		serial0 = &uart0;
		serial1 = &uart1;
	};

	reserved-memory {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		/*
		 * The PSCI firmware region depicted below is the default one
		 * and should be updated by the bootloader.
		 */
		psci-area@4000000 {
			reg = <0 0x4000000 0 0x200000>;
			no-map;
		};

		tee@4400000 {
			reg = <0 0x4400000 0 0x1000000>;
			no-map;
		};
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;
		cpu0: cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-a53";
			reg = <0>;
			clocks = <&nb_periph_clk 16>;
			enable-method = "psci";
		};
	};

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

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

	pmu {
		compatible = "arm,cortex-a53-pmu";
		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;

Annotation

Implementation Notes