arch/arm/boot/dts/nxp/mxs/imx23.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/nxp/mxs/imx23.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/nxp/mxs/imx23.dtsi
Extension
.dtsi
Size
15143 bytes
Lines
636
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: GPL-2.0+
//
// Copyright 2012 Freescale Semiconductor, Inc.

#include "imx23-pinfunc.h"

/ {
	#address-cells = <1>;
	#size-cells = <1>;

	interrupt-parent = <&icoll>;
	/*
	 * The decompressor and also some bootloaders rely on a
	 * pre-existing /chosen node to be available to insert the
	 * command line and merge other ATAGS info.
	 */
	chosen {};

	aliases {
		gpio0 = &gpio0;
		gpio1 = &gpio1;
		gpio2 = &gpio2;
		serial0 = &auart0;
		serial1 = &auart1;
		spi0 = &ssp0;
		spi1 = &ssp1;
		usbphy0 = &usbphy0;
	};

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

		cpu@0 {
			compatible = "arm,arm926ej-s";
			device_type = "cpu";
			reg = <0>;
		};
	};

	apb@80000000 {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;
		reg = <0x80000000 0x80000>;
		ranges;

		apbh-bus@80000000 {
			compatible = "simple-bus";
			#address-cells = <1>;
			#size-cells = <1>;
			reg = <0x80000000 0x40000>;
			ranges;

			icoll: interrupt-controller@80000000 {
				compatible = "fsl,imx23-icoll", "fsl,icoll";
				interrupt-controller;
				#interrupt-cells = <1>;
				reg = <0x80000000 0x2000>;
			};

			dma_apbh: dma-controller@80004000 {
				compatible = "fsl,imx23-dma-apbh";
				reg = <0x80004000 0x2000>;
				interrupts = <0>, <14>, <20>, <0>,
					     <13>, <13>, <13>, <13>;
				#dma-cells = <1>;
				dma-channels = <8>;
				clocks = <&clks 15>;
			};

Annotation

Implementation Notes