arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi
Extension
.dtsi
Size
14225 bytes
Lines
571
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 2019 NXP
 * Copyright 2019-2020 Variscite Ltd.
 * Copyright (C) 2020 Krzysztof Kozlowski <krzk@kernel.org>
 */

#include "imx8mn.dtsi"

/ {
	model = "Variscite VAR-SOM-MX8MN module";
	compatible = "variscite,var-som-mx8mn", "fsl,imx8mn";

	chosen {
		stdout-path = &uart4;
	};

	memory@40000000 {
		device_type = "memory";
		reg = <0x0 0x40000000 0 0x40000000>;
	};

	reg_eth_phy: regulator-eth-phy {
		compatible = "regulator-fixed";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_reg_eth_phy>;
		regulator-name = "eth_phy_pwr";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-enable-ramp-delay = <20000>;
		gpio = <&gpio2 9 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};

	reg_3v3_fixed: regulator-3v3-fixed {
		compatible = "regulator-fixed";
		regulator-name = "fixed_3v3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};
};

&A53_0 {
	cpu-supply = <&buck2_reg>;
};

&A53_1 {
	cpu-supply = <&buck2_reg>;
};

&A53_2 {
	cpu-supply = <&buck2_reg>;
};

&A53_3 {
	cpu-supply = <&buck2_reg>;
};

&ecspi1 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_ecspi1>;
	cs-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>,
		   <&gpio1  0 GPIO_ACTIVE_LOW>;
	/delete-property/ dmas;
	/delete-property/ dma-names;
	status = "okay";

	/* Resistive touch controller */
	touchscreen@0 {

Annotation

Implementation Notes