arch/arm/boot/dts/intel/ixp/intel-ixp42x.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/intel/ixp/intel-ixp42x.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/intel/ixp/intel-ixp42x.dtsi
Extension
.dtsi
Size
742 bytes
Lines
35
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: ISC
/*
 * Device Tree file for Intel XScale Network Processors
 * in the IXP 42x series. This series has 32 interrupts.
 */
#include "intel-ixp4xx.dtsi"

/ {
	soc {
		bus@c4000000 {
			compatible = "intel,ixp42x-expansion-bus-controller", "syscon";
			reg = <0xc4000000 0x30>;
		};

		pci@c0000000 {
			compatible = "intel,ixp42x-pci";
		};

		interrupt-controller@c8003000 {
			compatible = "intel,ixp42x-interrupt";
		};

		/*
		 * This is the USB Device Mode (UDC) controller, which is used
		 * to present the IXP4xx as a device on a USB bus.
		 */
		usb@c800b000 {
			compatible = "intel,ixp4xx-udc";
			reg = <0xc800b000 0x1000>;
			interrupts = <12 IRQ_TYPE_LEVEL_HIGH>;
			status = "disabled";
		};
	};
};

Annotation

Implementation Notes