arch/arm64/boot/dts/freescale/imx8qm-tqma8qm.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8qm-tqma8qm.dtsi
Extension
.dtsi
Size
8187 bytes
Lines
326
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-later OR MIT)
/*
 * Copyright (c) 2019-2026 TQ-Systems GmbH <linux@ew.tq-group.com>,
 * D-82229 Seefeld, Germany.
 * Author: Alexander Stein
 */

#include <dt-bindings/firmware/imx/rsrc.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/thermal/thermal.h>

#include "imx8qm.dtsi"

/ {
	model = "TQ-Systems i.MX8QM TQMa8QM";
	compatible = "tq,imx8qm-tqma8qm", "fsl,imx8qm";

	/* Due to missing workaround for ERR050104 */
	cpus {
		/delete-node/ cpu-map;
		/delete-node/ cpu@100;
		/delete-node/ cpu@101;
	};

	memory@80000000 {
		device_type = "memory";
		/*
		 * DRAM base addr, size : 1024 MiB DRAM
		 * should be corrected by bootloader
		 */
		reg = <0x00000000 0x80000000 0 0x40000000>;
	};

	reg_tqma8x_v3v3: regulator-tqma8x-v3v3 {
		compatible = "regulator-fixed";
		regulator-name = "V_3V3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};

	/* SW7 controlled by SCU */
	reg_1v8_io1: regulator-v1v8-io1 {
		compatible = "regulator-fixed";
		regulator-name = "V_1V8_IO1";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-always-on;
	};

	/* LDO4 controlled by SCU */
	reg_3v3_emmc: regulator-v3v3-emmc {
		compatible = "regulator-fixed";
		regulator-name = "V_3V3_EMMC";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};
};

&acm {
	status = "okay";
};

&adc0 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_adc0>;
	vref-supply = <&reg_vref_v1v8>;
	status = "okay";
};

Annotation

Implementation Notes