arch/arm/boot/dts/broadcom/bcm2835-rpi-a.dts

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

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/broadcom/bcm2835-rpi-a.dts
Extension
.dts
Size
2360 bytes
Lines
124
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
/dts-v1/;
#include "bcm2835.dtsi"
#include "bcm2835-rpi.dtsi"
#include "bcm2835-rpi-common.dtsi"
#include "bcm283x-rpi-led-deprecated.dtsi"
#include "bcm283x-rpi-usb-host.dtsi"

/ {
	compatible = "raspberrypi,model-a", "brcm,bcm2835";
	model = "Raspberry Pi Model A";

	memory@0 {
		device_type = "memory";
		reg = <0 0x10000000>;
	};
};

&gpio {
	/*
	 * Taken from Raspberry-Pi-Rev-1.0-Model-AB-Schematics.pdf
	 * RPI00021 sheet 02
	 *
	 * Legend:
	 * "FOO" = GPIO line named "FOO" on the schematic
	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
	 */
	gpio-line-names = "SDA0",
			  "SCL0",
			  "SDA1",
			  "SCL1",
			  "GPIO_GCLK",
			  "CAM_GPIO1",
			  "LAN_RUN",
			  "SPI_CE1_N",
			  "SPI_CE0_N",
			  "SPI_MISO",
			  "SPI_MOSI",
			  "SPI_SCLK",
			  "", /* GPIO12 */
			  "", /* GPIO13 */
			  /* Serial port */
			  "TXD0",
			  "RXD0",
			  "STATUS_LED_N",
			  "GPIO17",
			  "GPIO18",
			  "", /* GPIO19 */
			  "", /* GPIO20 */
			  "GPIO21",
			  "GPIO22",
			  "GPIO23",
			  "GPIO24",
			  "GPIO25",
			  "", /* GPIO26 */
			  "CAM_GPIO0",
			  /* Binary number representing build/revision */
			  "CONFIG0",
			  "CONFIG1",
			  "CONFIG2",
			  "CONFIG3",
			  "", /* GPIO32 */
			  "", /* GPIO33 */
			  "", /* GPIO34 */
			  "", /* GPIO35 */
			  "", /* GPIO36 */
			  "", /* GPIO37 */
			  "", /* GPIO38 */
			  "", /* GPIO39 */
			  "PWM0_OUT",

Annotation

Implementation Notes