arch/arm/boot/dts/nxp/ls/ls1021a-iot.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/nxp/ls/ls1021a-iot.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/nxp/ls/ls1021a-iot.dts
Extension
.dts
Size
3596 bytes
Lines
228
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 2021-2022 NXP
 *
 */

/dts-v1/;
#include "ls1021a.dtsi"

/ {
	model = "LS1021A-IOT Board";
	compatible = "fsl,ls1021a-iot", "fsl,ls1021a";

	sys_mclk: clock-mclk {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <24576000>;
	};

	reg_3p3v: regulator-3V3 {
		compatible = "regulator-fixed";
		regulator-name = "3P3V";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};

	reg_2p5v: regulator-2V5 {
		compatible = "regulator-fixed";
		regulator-name = "2P5V";
		regulator-min-microvolt = <2500000>;
		regulator-max-microvolt = <2500000>;
		regulator-always-on;
	};

	sound {
		compatible = "simple-audio-card";
		simple-audio-card,format = "i2s";
		simple-audio-card,widgets =
			"Microphone", "Microphone Jack",
			"Headphone", "Headphone Jack",
			"Speaker", "Speaker Ext",
			"Line", "Line In Jack";
		simple-audio-card,routing =
			"MIC_IN", "Microphone Jack",
			"Microphone Jack", "Mic Bias",
			"LINE_IN", "Line In Jack",
			"Headphone Jack", "HP_OUT",
			"Speaker Ext", "LINE_OUT";

		simple-audio-card,cpu {
			sound-dai = <&sai2>;
			frame-master;
			bitclock-master;
		};

		simple-audio-card,codec {
			sound-dai = <&sgtl5000>;
			frame-master;
			bitclock-master;
		};
	};
};

&can0 {
	status = "disabled";
};

&can1 {
	status = "disabled";

Annotation

Implementation Notes