Linux preempt-rt

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/*
 * Copyright (c) 2020 Tobias Svehagen
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;
#include <nordic/nrf52840_qiaa.dtsi>
#include "feather_connector.dtsi"

/ {
	model = "Adafruit Feather nRF52840 Express";
	compatible = "adafruit,feather-nrf52840";

	chosen {
		zephyr,console = &uart0;
		zephyr,shell-uart = &uart0;
		zephyr,uart-mcumgr = &uart0;
		zephyr,bt-mon-uart = &uart0;
		zephyr,bt-c2h-uart = &uart0;
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zephyr,code-partition = &slot0_partition;
	};

	leds {
		compatible = "gpio-leds";
		led0: led_0 {
			gpios = <&gpio1 15 0>;
			label = "Red LED";
		};
		led1: led_1 {
			gpios = <&gpio1 10 0>;
			label = "Blue LED";
		};
	};

	buttons {
		compatible = "gpio-keys";
		button0: button_0 {
			gpios = <&gpio1 2 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "Push button switch";
		};
	};

	/* These aliases are provided for compatibility with samples */
	aliases {
		led0 = &led0;
		led1 = &led1;
		sw0 = &button0;
	};
};

&adc {
	status = "okay";
};

&gpiote {
	status = "okay";
};

&gpio0 {
	status = "okay";
};

&gpio1 {
	status = "okay";
};

&uart0 {
	compatible = "nordic,nrf-uart";
	current-speed = <115200>;
	status = "okay";
	tx-pin = <25>;
	rx-pin = <24>;
};

&i2c0 {
	compatible = "nordic,nrf-twi";
	status = "okay";
	sda-pin = <12>;
	scl-pin = <11>;
};

&spi1 {
	compatible = "nordic,nrf-spi";
	status = "okay";
	sck-pin = <14>;
	mosi-pin = <13>;
	miso-pin = <15>;
};

&qspi {
	status = "okay";
	sck-pin = <19>;
	io-pins = <17>, <22>, <23>, <21>;
	csn-pins = <20>;
	gd25q16: gd25q16@0 {
		/* NOTE: Quad mode not supported as driver does not handle
		 * QE bit setting in SR2. Ref. GD25Q16C, Rev 3.0, p. 12.
		 */
		compatible = "nordic,qspi-nor";
		reg = <0>;
		writeoc = "pp2o";
		readoc = "read2io";
		sck-frequency = <16000000>;
		label = "GD25Q16";
		jedec-id = [c8 40 15];
		size = <16777216>;
		has-dpd;
		t-enter-dpd = <20000>;
		t-exit-dpd = <20000>;
	};
};

&flash0 {

	partitions {
		compatible = "fixed-partitions";
		#address-cells = <1>;
		#size-cells = <1>;

		boot_partition: partition@0 {
			label = "mcuboot";
			reg = <0x000000000 0x0000C000>;
		};
		slot0_partition: partition@c000 {
			label = "image-0";
			reg = <0x0000C000 0x00067000>;
		};
		slot1_partition: partition@73000 {
			label = "image-1";
			reg = <0x00073000 0x00067000>;
		};
		scratch_partition: partition@da000 {
			label = "image-scratch";
			reg = <0x000da000 0x0001e000>;
		};

		/*
		 * The flash starting at 0x000f8000 and ending at
		 * 0x000fffff is reserved for use by the application.
		 */

		/* Storage partition will be used by FCB/NFFS/NVS if enabled. */
		storage_partition: partition@f8000 {
			label = "storage";
			reg = <0x000f8000 0x00008000>;
		};
	};
};

zephyr_udc0: &usbd {
	compatible = "nordic,nrf-usbd";
	status = "okay";
};