arch/powerpc/boot/dts/ac14xx.dts

Source file repositories/reference/linux-study-clean/arch/powerpc/boot/dts/ac14xx.dts

File Facts

System
Linux kernel
Corpus path
arch/powerpc/boot/dts/ac14xx.dts
Extension
.dts
Size
7900 bytes
Lines
396
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
/*
 * Device Tree Source for the MPC5121e based ac14xx board
 *
 * Copyright 2012 Anatolij Gustschin <agust@denx.de>
 */


#include "mpc5121.dtsi"

/ {
	model = "ac14xx";
	compatible = "ifm,ac14xx", "fsl,mpc5121";
	#address-cells = <1>;
	#size-cells = <1>;

	aliases {
		serial0 = &serial0;
		serial1 = &serial7;
		spi4 = &spi4;
		spi5 = &spi5;
	};

	cpus {
		PowerPC,5121@0 {
			timebase-frequency = <40000000>;	/*  40 MHz (csb/4) */
			bus-frequency = <160000000>;		/* 160 MHz csb bus */
			clock-frequency = <400000000>;		/* 400 MHz ppc core */
		};
	};

	memory {
		reg = <0x00000000 0x10000000>;			/* 256MB at 0 */
	};

	nfc@40000000 {
		status = "disabled";
	};

	localbus@80000020 {
		ranges = <0x0 0x0 0xfc000000 0x04000000	/* CS0: NOR flash */
			  0x1 0x0 0xe0000000 0x00010000 /* CS1: FRAM */
			  0x2 0x0 0xe0100000 0x00080000 /* CS2: asi1 */
			  0x3 0x0 0xe0300000 0x00020000 /* CS3: comm */
			  0x5 0x0 0xe0400000 0x00010000 /* CS5: safety */
			  0x6 0x0 0xe0200000 0x00080000>; /* CS6: asi2 */

		flash@0,0 {
			compatible = "cfi-flash";
			reg = <0 0x00000000 0x04000000>;
			#address-cells = <1>;
			#size-cells = <1>;
			bank-width = <2>;
			device-width = <2>;

			partition@0 {
				label = "dtb-kernel-production";
				reg = <0x00000000 0x00400000>;
			};
			partition@1 {
				label = "filesystem-production";
				reg = <0x00400000 0x03400000>;
			};

			partition@2 {
				label = "recovery";
				reg = <0x03800000 0x00700000>;
			};

			partition@3 {

Annotation

Implementation Notes