arch/arm/boot/dts/broadcom/bcm2711.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/broadcom/bcm2711.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/broadcom/bcm2711.dtsi
Extension
.dtsi
Size
26626 bytes
Lines
1195
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
#include "bcm283x.dtsi"

#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/soc/bcm2835-pm.h>

/ {
	compatible = "brcm,bcm2711";

	#address-cells = <2>;
	#size-cells = <1>;

	interrupt-parent = <&gicv2>;

	vc4: gpu {
		compatible = "brcm,bcm2711-vc5";
		status = "disabled";
	};

	clk_27MHz: clk-27M {
		#clock-cells = <0>;
		compatible = "fixed-clock";
		clock-frequency = <27000000>;
		clock-output-names = "27MHz-clock";
	};

	clk_108MHz: clk-108M {
		#clock-cells = <0>;
		compatible = "fixed-clock";
		clock-frequency = <108000000>;
		clock-output-names = "108MHz-clock";
	};

	soc {
		/*
		 * Defined ranges:
		 *   Common BCM283x peripherals
		 *   BCM2711-specific peripherals
		 *   ARM-local peripherals
		 */
		ranges = <0x7e000000  0x0 0xfe000000  0x01800000>,
			 <0x7c000000  0x0 0xfc000000  0x02000000>,
			 <0x40000000  0x0 0xff800000  0x00800000>;
		/* Emulate a contiguous 30-bit address range for DMA */
		dma-ranges = <0xc0000000  0x0 0x00000000  0x40000000>;

		/*
		 * This node is the provider for the enable-method for
		 * bringing up secondary cores.
		 */
		local_intc: interrupt-controller@40000000 {
			compatible = "brcm,bcm2836-l1-intc";
			reg = <0x40000000 0x100>;
		};

		gicv2: interrupt-controller@40041000 {
			interrupt-controller;
			#interrupt-cells = <3>;
			compatible = "arm,gic-400";
			reg =	<0x40041000 0x1000>,
				<0x40042000 0x2000>,
				<0x40044000 0x2000>,
				<0x40046000 0x2000>;
			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) |
						 IRQ_TYPE_LEVEL_HIGH)>;
		};

		avs_monitor: avs-monitor@7d5d2000 {
			compatible = "brcm,bcm2711-avs-monitor",
				     "syscon", "simple-mfd";

Annotation

Implementation Notes