arch/arm/boot/dts/microchip/usb_a9g20_lpw.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/usb_a9g20_lpw.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/usb_a9g20_lpw.dts
Extension
.dts
Size
849 bytes
Lines
39
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-or-later
/*
 * usb_a9g20_lpw.dts - Device Tree file for Calao USB A9G20 Low Power board
 *
 *  Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
 */
/dts-v1/;
#include "at91sam9g20.dtsi"
#include "usb_a9260_common.dtsi"

/ {
	model = "Calao USB A9G20 Low Power";
	compatible = "calao,usb-a9g20-lpw", "calao,usb-a9g20", "atmel,at91sam9g20", "atmel,at91sam9";

	ahb {
		apb {
			spi1: spi@fffcc000 {
				cs-gpios = <&pioB 3 GPIO_ACTIVE_HIGH>;
				status = "okay";
				mmc@0 {
					compatible = "mmc-spi-slot";
					reg = <0>;
					voltage-ranges = <3200 3400>;
					spi-max-frequency = <25000000>;
					interrupt-parent = <&pioC>;
					interrupts = <4 IRQ_TYPE_EDGE_BOTH>;
				};
			};
		};
	};

	i2c-gpio-0 {
		rtc@56 {
			compatible = "microcrystal,rv3029";
			reg = <0x56>;
		};
	};
};

Annotation

Implementation Notes