arch/arm64/boot/dts/freescale/imx8mq-zii-ultra-rmb3.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra-rmb3.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mq-zii-ultra-rmb3.dts
Extension
.dts
Size
3990 bytes
Lines
189
Domain
Architecture Layer
Bucket
arch/arm64
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 MIT)
/*
 * Copyright (C) 2019 Zodiac Inflight Innovations
 */

/dts-v1/;

#include "imx8mq-zii-ultra.dtsi"

/ {
	model = "ZII Ultra RMB3 Board";
	compatible = "zii,imx8mq-ultra-rmb3", "zii,imx8mq-ultra", "fsl,imx8mq";

	sound1 {
		compatible = "simple-audio-card";
		simple-audio-card,name = "front";
		simple-audio-card,format = "i2s";
		simple-audio-card,bitclock-master = <&sound1_codec>;
		simple-audio-card,frame-master = <&sound1_codec>;
		simple-audio-card,widgets =
			"Headphone", "Headphone Jack Front";
		simple-audio-card,routing =
			"Headphone Jack Front", "HPA1 HPLEFT",
			"Headphone Jack Front", "HPA1 HPRIGHT",
			"HPA1 LEFTIN", "HPL",
			"HPA1 RIGHTIN", "HPR";
		simple-audio-card,aux-devs = <&hpa1>;

		sound1_cpu: simple-audio-card,cpu {
			sound-dai = <&sai2>;
		};

		sound1_codec: simple-audio-card,codec {
			sound-dai = <&codec1>;
			clocks = <&cs2000>;
		};
	};

	sound2 {
		compatible = "simple-audio-card";
		simple-audio-card,name = "periph";
		simple-audio-card,format = "i2s";
		simple-audio-card,bitclock-master = <&sound2_codec>;
		simple-audio-card,frame-master = <&sound2_codec>;
		simple-audio-card,widgets =
			"Headphone", "Headphone Jack Back";
		simple-audio-card,routing =
			"Headphone Jack Back", "HPA1 HPLEFT",
			"Headphone Jack Back", "HPA1 HPRIGHT",
			"HPA1 LEFTIN", "HPL",
			"HPA1 RIGHTIN", "HPR";
		simple-audio-card,aux-devs = <&hpa2>;

		sound2_cpu: simple-audio-card,cpu {
			sound-dai = <&sai3>;
		};

		sound2_codec: simple-audio-card,codec {
			sound-dai = <&codec2>;
			clocks = <&cs2000>;
		};
	};
};

&ecspi1 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_ecspi1>;
	cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
	status = "okay";
	#address-cells = <1>;

Annotation

Implementation Notes