arch/arm64/boot/dts/freescale/imx93w.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx93w.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx93w.dtsi
Extension
.dtsi
Size
2928 bytes
Lines
111
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 2026 NXP
 */

#include "imx93.dtsi"

/ {
	aliases {
		mmc2 = &usdhc3;
	};

	reg_usdhc3_vmmc: regulator-usdhc3 {
		compatible = "regulator-fixed";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_reg_usdhc3_vmmc>;
		regulator-name = "WLAN_EN";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		gpio = <&gpio2 29 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};

	usdhc3_pwrseq: usdhc3_pwrseq {
		compatible = "mmc-pwrseq-simple";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_usdhc3_pwrseq>;
		reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
	};
};

&usdhc3 {
	pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
	pinctrl-0 = <&pinctrl_usdhc3>;
	pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
	pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
	pinctrl-3 = <&pinctrl_usdhc3_sleep>;
	mmc-pwrseq = <&usdhc3_pwrseq>;
	vmmc-supply = <&reg_usdhc3_vmmc>;
	bus-width = <4>;
	keep-power-in-suspend;
	non-removable;
	wakeup-source;
	status = "okay";
};

&iomuxc {
	pinctrl_reg_usdhc3_vmmc: regusdhc3vmmcgrp {
		fsl,pins = <
			/*
			 * Enable open drain and internal pull-up to allow the IW610 JTAG
			 * connector to control the PDn status.
			 */
			MX93_PAD_GPIO_IO29__GPIO2_IO29			0xb9e
		>;
	};

	/* need to config the SION for data and cmd pad, refer to ERR052021 */
	pinctrl_usdhc3: usdhc3grp {
		fsl,pins = <
			MX93_PAD_SD3_CLK__USDHC3_CLK		0x1582
			MX93_PAD_SD3_CMD__USDHC3_CMD		0x40001382
			MX93_PAD_SD3_DATA0__USDHC3_DATA0	0x40001382
			MX93_PAD_SD3_DATA1__USDHC3_DATA1	0x40001382
			MX93_PAD_SD3_DATA2__USDHC3_DATA2	0x40001382
			MX93_PAD_SD3_DATA3__USDHC3_DATA3	0x40001382
		>;
	};

	/* need to config the SION for data and cmd pad, refer to ERR052021 */

Annotation

Implementation Notes