arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
Extension
.dtsi
Size
6859 bytes
Lines
299
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) 2022-2025 TQ-Systems GmbH <linux@ew.tq-group.com>,
 * D-82229 Seefeld, Germany.
 * Author: Markus Niebel
 */

#include "imx93.dtsi"

/{
	model = "TQ-Systems i.MX93 TQMa93xxLA/TQMa93xxCA SOM";
	compatible = "tq,imx93-tqma9352", "fsl,imx93";

	memory@80000000 {
		device_type = "memory";
		/* our minimum RAM config will be 1024 MiB */
		reg = <0x00000000 0x80000000 0 0x40000000>;
	};

	reserved-memory {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		linux,cma {
			compatible = "shared-dma-pool";
			reusable;
			alloc-ranges = <0 0x80000000 0 0x40000000>;
			size = <0 0x10000000>;
			linux,cma-default;
		};
	};

	/* SD2 RST# via PMIC SW_EN */
	reg_usdhc2_vmmc: regulator-usdhc2 {
		compatible = "regulator-fixed";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_reg_usdhc2_vmmc>;
		regulator-name = "VSD_3V3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		vin-supply = <&buck4>;
		gpio = <&gpio3 7 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};
};

&adc1 {
	vref-supply = <&buck5>;
};

&flexspi1 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_flexspi1>;
	status = "okay";

	flash0: flash@0 {
		compatible = "jedec,spi-nor";
		reg = <0>;
		/*
		 * no DQS, RXCLKSRC internal loop back, max 66 MHz
		 * clk framework uses CLK_DIVIDER_ROUND_CLOSEST
		 * selected value together with root from
		 * IMX93_CLK_SYS_PLL_PFD1 @ 800.000.000 Hz helps to
		 * respect the maximum value.
		 */
		spi-max-frequency = <62000000>;
		spi-tx-bus-width = <4>;
		spi-rx-bus-width = <4>;
		vcc-supply = <&buck5>;

Annotation

Implementation Notes