arch/arm/boot/dts/nxp/imx/imx27-apf27dev.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/nxp/imx/imx27-apf27dev.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/nxp/imx/imx27-apf27dev.dts
Extension
.dts
Size
5149 bytes
Lines
248
Domain
Architecture Layer
Bucket
arch/arm
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
/*
 * Copyright 2013 Armadeus Systems - <support@armadeus.com>
 */

/* APF27Dev is a docking board for the APF27 SOM */
#include "imx27-apf27.dts"

/ {
	model = "Armadeus Systems APF27Dev docking/development board";
	compatible = "armadeus,imx27-apf27dev", "armadeus,imx27-apf27", "fsl,imx27";

	display: display {
		model = "Chimei-LW700AT9003";
		bits-per-pixel = <16>;  /* non-standard but required */
		fsl,pcr = <0xfae80083>;	/* non-standard but required */
		display-timings {
			native-mode = <&timing0>;
			timing0: timing0 {
				clock-frequency = <33000033>;
				hactive = <800>;
				vactive = <480>;
				hback-porch = <96>;
				hfront-porch = <96>;
				vback-porch = <20>;
				vfront-porch = <21>;
				hsync-len = <64>;
				vsync-len = <4>;
			};
		};
	};

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

		user-key {
			label = "user";
			gpios = <&gpio6 13 GPIO_ACTIVE_HIGH>;
			linux,code = <276>; /* BTN_EXTRA */
		};
	};

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

		led-user {
			label = "Heartbeat";
			gpios = <&gpio6 14 GPIO_ACTIVE_HIGH>;
			linux,default-trigger = "heartbeat";
		};
	};

	reg_max5821: regulator-0 {
		compatible = "regulator-fixed";
		regulator-name = "max5821-reg";
		regulator-min-microvolt = <2500000>;
		regulator-max-microvolt = <2500000>;
		regulator-always-on;
	};
};

&cspi1 {
	cs-gpios = <&gpio4 28 GPIO_ACTIVE_LOW>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_cspi1 &pinctrl_cspi1_cs>;
	status = "okay";

Annotation

Implementation Notes