arch/arm/boot/dts/broadcom/bcm2711-rpi-400.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/broadcom/bcm2711-rpi-400.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/broadcom/bcm2711-rpi-400.dts
Extension
.dts
Size
742 bytes
Lines
45
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 "bcm2711-rpi-4-b.dts"

/ {
	compatible = "raspberrypi,400", "brcm,bcm2711";
	model = "Raspberry Pi 400";

	chosen {
		/* 8250 auxiliary UART instead of pl011 */
		stdout-path = "serial1:115200n8";
	};

	gpio-poweroff {
		compatible = "gpio-poweroff";
		gpios = <&expgpio 5 GPIO_ACTIVE_HIGH>;
	};
};

&expgpio {
	gpio-line-names = "BT_ON",
			  "WL_ON",
			  "PWR_LED_OFF",
			  "GLOBAL_RESET",
			  "VDD_SD_IO_SEL",
			  "GLOBAL_SHUTDOWN",
			  "SD_PWR_ON",
			  "SHUTDOWN_REQUEST";
};

&genet_mdio {
	clock-frequency = <1950000>;
	/delete-node/ leds;
};

&led_pwr {
	gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
};

/delete-node/ &led_act;

&pm {
	/delete-property/ system-power-controller;
};

Annotation

Implementation Notes