arch/powerpc/boot/dts/mpc866ads.dts

Source file repositories/reference/linux-study-clean/arch/powerpc/boot/dts/mpc866ads.dts

File Facts

System
Linux kernel
Corpus path
arch/powerpc/boot/dts/mpc866ads.dts
Extension
.dts
Size
4016 bytes
Lines
187
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
/*
 * MPC866 ADS Device Tree Source
 *
 * Copyright 2006 MontaVista Software, Inc.
 * Copyright 2008 Freescale Semiconductor, Inc.
 */

/dts-v1/;

/ {
	model = "MPC866ADS";
	compatible = "fsl,mpc866ads";
	#address-cells = <1>;
	#size-cells = <1>;

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

		PowerPC,866@0 {
			device_type = "cpu";
			reg = <0x0>;
			d-cache-line-size = <16>;	// 16 bytes
			i-cache-line-size = <16>;	// 16 bytes
			d-cache-size = <0x2000>;		// L1, 8K
			i-cache-size = <0x4000>;		// L1, 16K
			timebase-frequency = <0>;
			bus-frequency = <0>;
			clock-frequency = <0>;
			interrupts = <15 2>;	// decrementer interrupt
			interrupt-parent = <&PIC>;
		};
	};

	memory {
		device_type = "memory";
		reg = <0x0 0x800000>;
	};

	localbus@ff000100 {
		compatible = "fsl,mpc866-localbus", "fsl,pq1-localbus";
		#address-cells = <2>;
		#size-cells = <1>;
		reg = <0xff000100 0x40>;

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

		board-control@1,0 {
			reg = <0x1 0x0 0x20 0x5 0x300 0x4>;
			compatible = "fsl,mpc866ads-bcsr";
		};
	};

	soc@ff000000 {
		#address-cells = <1>;
		#size-cells = <1>;
		device_type = "soc";
		ranges = <0x0 0xff000000 0x100000>;
		reg = <0xff000000 0x200>;
		bus-frequency = <0>;

		mdio@e00 {
			compatible = "fsl,mpc866-fec-mdio", "fsl,pq1-fec-mdio";
			reg = <0xe00 0x188>;
			#address-cells = <1>;
			#size-cells = <0>;

Annotation

Implementation Notes