arch/powerpc/boot/dts/mpc885ads.dts

Source file repositories/reference/linux-study-clean/arch/powerpc/boot/dts/mpc885ads.dts

File Facts

System
Linux kernel
Corpus path
arch/powerpc/boot/dts/mpc885ads.dts
Extension
.dts
Size
5211 bytes
Lines
240
Domain
Architecture Layer
Bucket
arch/powerpc
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
/*
 * MPC885 ADS Device Tree Source
 *
 * Copyright 2006 MontaVista Software, Inc.
 * Copyright 2007,2008 Freescale Semiconductor, Inc.
 */

/dts-v1/;

/ {
	model = "MPC885ADS";
	compatible = "fsl,mpc885ads";
	#address-cells = <1>;
	#size-cells = <1>;

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;

		PowerPC,885@0 {
			device_type = "cpu";
			reg = <0x0>;
			d-cache-line-size = <16>;
			i-cache-line-size = <16>;
			d-cache-size = <8192>;
			i-cache-size = <8192>;
			timebase-frequency = <0>;
			bus-frequency = <0>;
			clock-frequency = <0>;
			interrupts = <15 2>;	// decrementer interrupt
			interrupt-parent = <&PIC>;
		};
	};

	memory {
		device_type = "memory";
		reg = <0x0 0x0>;
	};

	localbus@ff000100 {
		compatible = "fsl,mpc885-localbus", "fsl,pq1-localbus";
		#address-cells = <2>;
		#size-cells = <1>;
		reg = <0xff000100 0x40>;

		ranges = <
			0x0 0x0 0xfe000000 0x800000
			0x1 0x0 0xff080000 0x8000
			0x5 0x0 0xff0a0000 0x8000
		>;

		flash@0,0 {
			compatible = "jedec-flash";
			reg = <0x0 0x0 0x800000>;
			bank-width = <4>;
			device-width = <1>;
		};

		board-control@1,0 {
			reg = <0x1 0x0 0x20 0x5 0x300 0x4>;
			compatible = "fsl,mpc885ads-bcsr";
		};
	};

	soc@ff000000 {
		compatible = "fsl,mpc885", "fsl,pq1-soc";
		#address-cells = <1>;
		#size-cells = <1>;
		device_type = "soc";

Annotation

Implementation Notes