arch/arm/boot/dts/intel/pxa/pxa2xx.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/intel/pxa/pxa2xx.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/intel/pxa/pxa2xx.dtsi
Extension
.dtsi
Size
3320 bytes
Lines
163
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-or-later
/*
 * pxa2xx.dtsi - Device Tree Include file for Marvell PXA2xx family SoC
 *
 * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
 */

#include "dt-bindings/clock/pxa-clock.h"

#define PMGROUP(pin) #pin
#define PMMUX(func, pin, af)			\
	mux- ## func {				\
		groups = PMGROUP(P ## pin);	\
		function = #af;			\
	}
#define PMMUX_LPM_LOW(func, pin, af)		\
	mux- ## func {				\
		groups = PMGROUP(P ## pin);	\
		function = #af;			\
		low-power-disable;		\
	}
#define PMMUX_LPM_HIGH(func, pin, af)		\
	mux- ## func {				\
		groups = PMGROUP(P ## pin);	\
		function = #af;			\
		low-power-enable;		\
	}

/ {
	#address-cells = <1>;
	#size-cells = <1>;
	model = "Marvell PXA2xx family SoC";
	compatible = "marvell,pxa2xx";
	interrupt-parent = <&pxairq>;

	aliases {
		serial0 = &ffuart;
		serial1 = &btuart;
		serial2 = &stuart;
		serial3 = &hwuart;
		i2c0 = &pwri2c;
		i2c1 = &pxai2c1;
	};

	cpus {
		cpu {
			compatible = "marvell,xscale";
			device_type = "cpu";
		};
	};

	pxabus {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		pxairq: interrupt-controller@40d00000 {
			#interrupt-cells = <1>;
			compatible = "marvell,pxa-intc";
			interrupt-controller;
			interrupt-parent;
			marvell,intc-nr-irqs = <32>;
			reg = <0x40d00000 0xd0>;
		};

		gpio: gpio@40e00000 {
			compatible = "mrvl,pxa-gpio";
			#address-cells = <0x1>;
			#size-cells = <0x1>;

Annotation

Implementation Notes