Linux preempt-rt

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/*
 * Copyright (c) 2020 Henrik Brix Andersen <henrik@brixandersen.dk>
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/ {
	chosen {
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zephyr,code-partition = &sramx;
		zephyr,console = &flexcomm0;
		zephyr,shell-uart = &flexcomm0;
		zephyr,entropy = &rng;
	};

	aliases{
		led0 = &red_led;
		led1 = &green_led;
		led2 = &blue_led;
		sw0 = &btn_wk;
		sw1 = &btn_usr;
		sw2 = &btn_isp;
		usart-0 = &flexcomm0;
	};

	leds {
		compatible = "gpio-leds";
		red_led: led_0 {
			gpios = <&gpio1 4 0>;
			label = "Red LED";
		};
		green_led: led_1 {
			gpios = <&gpio1 7 0>;
			label = "Green LED";
		};
		blue_led: led_2 {
			gpios = <&gpio1 6 0>;
			label = "Blue LED";
		};
	};

	gpio_keys {
		compatible = "gpio-keys";
		btn_wk: button_0 {
			label = "Wakeup button";
			gpios = <&gpio1 18 GPIO_ACTIVE_LOW>;
		};
		btn_usr: button_1 {
			label = "USR button";
			gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
		};
		btn_isp: button_2 {
			label = "ISP button";
			gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
		};
	};
};

&flexcomm0 {
	status = "okay";
	compatible = "nxp,lpc-usart";
	current-speed = <115200>;
};

arduino_i2c: &flexcomm4 {
	status = "okay";
	compatible = "nxp,lpc-i2c";
	clock-frequency = <I2C_BITRATE_STANDARD>;
	#address-cells = <1>;
	#size-cells = <0>;

	fxos8700@1e {
		compatible = "nxp,fxos8700";
		reg = <0x1e>;
		label = "FXOS8700";
		int1-gpios = <&gpio1 26 GPIO_ACTIVE_LOW>;
	};
};

arduino_spi: &hs_lspi {
	status = "okay";
};