arch/arm/boot/dts/nxp/lpc/lpc32xx.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/nxp/lpc/lpc32xx.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/nxp/lpc/lpc32xx.dtsi
Extension
.dtsi
Size
13641 bytes
Lines
541
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+
/*
 * NXP LPC32xx SoC
 *
 * Copyright (C) 2015-2019 Vladimir Zapolskiy <vz@mleia.com>
 * Copyright 2012 Roland Stigge <stigge@antcom.de>
 */

#include <dt-bindings/clock/lpc32xx-clock.h>
#include <dt-bindings/interrupt-controller/irq.h>

/ {
	#address-cells = <1>;
	#size-cells = <1>;
	compatible = "nxp,lpc3220";
	interrupt-parent = <&mic>;

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

		cpu@0 {
			compatible = "arm,arm926ej-s";
			device_type = "cpu";
			reg = <0x0>;
		};
	};

	clocks {
		xtal_32k: xtal_32k {
			compatible = "fixed-clock";
			#clock-cells = <0>;
			clock-frequency = <32768>;
			clock-output-names = "xtal_32k";
		};

		xtal: xtal {
			compatible = "fixed-clock";
			#clock-cells = <0>;
			clock-frequency = <13000000>;
			clock-output-names = "xtal";
		};
	};

	ahb {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "simple-bus";
		ranges = <0x00000000 0x00000000 0x10000000>,
			 <0x20000000 0x20000000 0x30000000>,
			 <0xe0000000 0xe0000000 0x04000000>;

		iram: sram@8000000 {
			compatible = "mmio-sram";
			reg = <0x08000000 0x20000>;

			#address-cells = <1>;
			#size-cells = <1>;
			ranges = <0x00000000 0x08000000 0x20000>;
		};

		/*
		 * Enable either SLC or MLC
		 */
		slc: nand-controller@20020000 {
			compatible = "nxp,lpc3220-slc";
			reg = <0x20020000 0x1000>;
			interrupts = <11 IRQ_TYPE_LEVEL_HIGH>;
			clocks = <&clk LPC32XX_CLK_SLC>;
			dmas = <&dma 1 1>;

Annotation

Implementation Notes