arch/arm64/boot/dts/freescale/imx8mm-emtop-som.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mm-emtop-som.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mm-emtop-som.dtsi
Extension
.dtsi
Size
6052 bytes
Lines
262
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 2023 Emtop Embedded Solutions
 */

/dts-v1/;

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/usb/pd.h>

#include "imx8mm.dtsi"

/ {
	model = "Emtop Embedded Solutions i.MX8M Mini SOM-IMX8MMLPD4 SoM";
	compatible = "ees,imx8mm-emtop-som", "fsl,imx8mm";

	chosen {
		stdout-path = &uart2;
	};

	leds {
		compatible = "gpio-leds";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_gpio_led>;

		led-0 {
			function = LED_FUNCTION_POWER;
			gpios = <&gpio3 16 GPIO_ACTIVE_HIGH>;
			linux,default-trigger = "heartbeat";
		};
	};
};

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

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

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

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

&i2c1 {
	clock-frequency = <400000>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_i2c1>;
	status = "okay";

	pmic@25 {
		compatible = "nxp,pca9450c";
		reg = <0x25>;
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_pmic>;
		interrupt-parent = <&gpio1>;
		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;

		regulators {
			buck1: BUCK1 {
				regulator-name = "BUCK1";
				regulator-min-microvolt = <800000>;
				regulator-max-microvolt = <1000000>;
				regulator-boot-on;

Annotation

Implementation Notes