arch/arm64/boot/dts/freescale/imx8mp-icore-mx8mp.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mp-icore-mx8mp.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mp-icore-mx8mp.dtsi
Extension
.dtsi
Size
4550 bytes
Lines
187
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) 2018 NXP
 * Copyright (c) 2019 Engicam srl
 * Copyright (c) 2020 Amarula Solutions(India)
 */

/ {
	compatible = "engicam,icore-mx8mp", "fsl,imx8mp";
};

&A53_0 {
	cpu-supply = <&buck2>;
};

&A53_1 {
	cpu-supply = <&buck2>;
};

&A53_2 {
	cpu-supply = <&buck2>;
};

&A53_3 {
	cpu-supply = <&buck2>;
};

&i2c1 {
	clock-frequency = <100000>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_i2c1>;
	status = "okay";

	pca9450: pmic@25 {
		compatible = "nxp,pca9450c";
		interrupt-parent = <&gpio3>;
		interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_pmic>;
		reg = <0x25>;

		regulators {
			buck1: BUCK1 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <720000>;
				regulator-max-microvolt = <1000000>;
				regulator-name = "BUCK1";
				regulator-ramp-delay = <3125>;
			};

			buck2: BUCK2  {
				nxp,dvs-run-voltage = <950000>;
				nxp,dvs-standby-voltage = <850000>;
				regulator-always-on;
				regulator-boot-on;
				regulator-max-microvolt = <1025000>;
				regulator-min-microvolt = <720000>;
				regulator-name = "BUCK2";
				regulator-ramp-delay = <3125>;
			};

			buck4: BUCK4 {
				regulator-always-on;
				regulator-boot-on;
				regulator-max-microvolt = <3600000>;
				regulator-min-microvolt = <3000000>;
				regulator-name = "BUCK4";
			};

Annotation

Implementation Notes