arch/arm64/boot/dts/freescale/imx91-11x11-frdm-s.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx91-11x11-frdm-s.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx91-11x11-frdm-s.dts
Extension
.dts
Size
16820 bytes
Lines
770
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 2025 NXP
 */

/dts-v1/;

#include <dt-bindings/usb/pd.h>
#include "imx91.dtsi"

/ {
	compatible = "fsl,imx91-11x11-frdm-s", "fsl,imx91";
	model = "NXP FRDM-IMX91S board";

	aliases {
		ethernet0 = &eqos;
		gpio0 = &gpio1;
		gpio1 = &gpio2;
		gpio2 = &gpio3;
		gpio3 = &gpio4;
		i2c0 = &lpi2c1;
		i2c1 = &lpi2c2;
		mmc0 = &usdhc1;
		mmc1 = &usdhc2;
		rtc0 = &pcf2131;
		rtc1 = &bbnsm_rtc;
		serial0 = &lpuart1;
		serial4 = &lpuart5;
	};

	chosen {
		stdout-path = &lpuart1;
	};

	flexcan1_phy: can-phy {
		compatible = "nxp,tja1051";
		#phy-cells = <0>;
		max-bitrate = <5000000>;
		silent-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
	};

	gpio-keys {
		compatible = "gpio-keys";
		pinctrl-0 = <&pinctrl_gpio_key>;
		pinctrl-names = "default";

		button {
			interrupt-parent = <&gpio3>;
			interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
			gpios = <&gpio3 26 GPIO_PULL_UP>;
			label = "User Button";
			linux,code = <BTN_1>;
		};
	};

	gpio-leds {
		compatible = "gpio-leds";

		led-0 {
			default-state = "on";
			gpios = <&pcal6524 7 GPIO_ACTIVE_LOW>;
			label = "green:status";
		};
	};

	reg_vref_1v8: regulator-adc-vref {
		compatible = "regulator-fixed";
		regulator-max-microvolt = <1800000>;
		regulator-min-microvolt = <1800000>;
		regulator-name = "vref_1v8";

Annotation

Implementation Notes