arch/arm/boot/dts/broadcom/bcm2835-common.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/broadcom/bcm2835-common.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/broadcom/bcm2835-common.dtsi
Extension
.dtsi
Size
4411 bytes
Lines
210
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

/* This include file covers the common peripherals and configuration between
 * bcm2835, bcm2836 and bcm2837 implementations.
 */

/ {
	interrupt-parent = <&intc>;

	soc {
		dma: dma-controller@7e007000 {
			compatible = "brcm,bcm2835-dma";
			reg = <0x7e007000 0xf00>;
			interrupts = <1 16>,
				     <1 17>,
				     <1 18>,
				     <1 19>,
				     <1 20>,
				     <1 21>,
				     <1 22>,
				     <1 23>,
				     <1 24>,
				     <1 25>,
				     <1 26>,
				     /* dma channel 11-14 share one irq */
				     <1 27>,
				     <1 27>,
				     <1 27>,
				     <1 27>,
				     /* unused shared irq for all channels */
				     <1 28>;
			interrupt-names = "dma0",
					  "dma1",
					  "dma2",
					  "dma3",
					  "dma4",
					  "dma5",
					  "dma6",
					  "dma7",
					  "dma8",
					  "dma9",
					  "dma10",
					  "dma11",
					  "dma12",
					  "dma13",
					  "dma14",
					  "dma-shared-all";
			#dma-cells = <1>;
			brcm,dma-channel-mask = <0x7f35>;
		};

		intc: interrupt-controller@7e00b200 {
			compatible = "brcm,bcm2835-armctrl-ic";
			reg = <0x7e00b200 0x200>;
			interrupt-controller;
			#interrupt-cells = <2>;
		};

		pm: watchdog@7e100000 {
			compatible = "brcm,bcm2835-pm", "brcm,bcm2835-pm-wdt";
			#power-domain-cells = <1>;
			#reset-cells = <1>;
			reg = <0x7e100000 0x114>,
			      <0x7e00a000 0x24>;
			reg-names = "pm", "asb";
			clocks = <&clocks BCM2835_CLOCK_V3D>,
				 <&clocks BCM2835_CLOCK_PERI_IMAGE>,
				 <&clocks BCM2835_CLOCK_H264>,
				 <&clocks BCM2835_CLOCK_ISP>;
			clock-names = "v3d", "peri_image", "h264", "isp";

Annotation

Implementation Notes