arch/arm/boot/dts/intel/ixp/intel-ixp42x-arcom-vulcan.dts

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

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/intel/ixp/intel-ixp42x-arcom-vulcan.dts
Extension
.dts
Size
4402 bytes
Lines
170
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 the Arcom/Eurotech Vulcan board.
 * This board is a single board computer in the PC/104 form factor based on
 * IXP425, and was released around 2005. It previously had the name "Mercury".
 */

/dts-v1/;

#include "intel-ixp42x.dtsi"
#include <dt-bindings/input/input.h>

/ {
	model = "Arcom/Eurotech Vulcan";
	compatible = "arcom,vulcan", "intel,ixp42x";
	#address-cells = <1>;
	#size-cells = <1>;

	memory@0 {
		device_type = "memory";
		reg = <0x00000000 0x4000000>;
	};

	chosen {
		/* CHECKME: using a harddrive at /dev/sda1 as rootfs by default */
		bootargs = "console=ttyS0,115200n8 root=/dev/sda1 rw rootfstype=ext4 rootwait";
		stdout-path = "uart0:115200n8";
	};

	aliases {
		serial0 = &uart0;
	};

	onewire {
		compatible = "w1-gpio";
		gpios = <&gpio0 14 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
	};

	soc {
		bus@c4000000 {
			flash@0,0 {
				compatible = "intel,ixp4xx-flash", "cfi-flash";
				bank-width = <2>;
				/*
				 * 32 MB of Flash in 0x20000 byte blocks
				 * mapped in at CS0 and CS1.
				 *
				 * The documentation mentions the existence
				 * of a 16MB version, which we conveniently
				 * ignore. Shout if you own one!
				 */
				reg = <0 0x00000000 0x2000000>;

				/* Expansion bus settings */
				intel,ixp4xx-eb-t3 = <3>;
				intel,ixp4xx-eb-byte-access-on-halfword = <1>;
				intel,ixp4xx-eb-write-enable = <1>;

				partitions {
					compatible = "redboot-fis";
					fis-index-block = <0x1ff>;
				};
			};
			sram@2,0 {
				/* 256 KB SDRAM memory at CS2 */
				compatible = "shared-dma-pool";
				device_type = "memory";
				reg = <2 0x00000000 0x40000>;
				no-map;
				/* Expansion bus settings */

Annotation

Implementation Notes