Linux preempt-rt

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/*
 * Copyright (c) 2018 Peter Bigot Consulting, LLC
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;
#include <nordic/nrf52840_qiaa.dtsi>
#include <zephyr/dt-bindings/gpio/gpio.h>
#include "mesh_feather.dtsi"
#include "particle_boron-pinctrl.dtsi"

/ {
	model = "Particle Boron";
	compatible = "particle,boron", "particle,feather";

	sky13351 {
		compatible = "skyworks,sky13351";
		vctl1-gpios = <&gpio0 7 GPIO_ACTIVE_LOW>;
		/* on Boron VCTL2 is inverted VCTL1 signal via SN74LVC1G04
		 * single inverter gate -- requires a definition below,
		 * but is not used in board.c */
		vctl2-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
	};
};

&i2c1 { /* power monitoring */
	compatible = "nordic,nrf-twi";
	status = "okay";
	clock-frequency = <I2C_BITRATE_FAST>;
	pinctrl-0 = <&i2c1_default>;
	pinctrl-1 = <&i2c1_sleep>;
	pinctrl-names = "default", "sleep";
};

&uart1 { /* u-blox SARA-U2 or SARA-R4 */
	compatible = "nordic,nrf-uarte";
	current-speed = <115200>;
	status = "okay";

	hw-flow-control;

	pinctrl-0 = <&uart1_default>;
	pinctrl-1 = <&uart1_sleep>;
	pinctrl-names = "default", "sleep";
	sara_r4 {
		compatible = "u-blox,sara-r4";
		label = "ublox-sara-r4";
		status = "okay";

		mdm-power-gpios = <&gpio0 16 0>;
		mdm-reset-gpios = <&gpio0 12 0>;
		mdm-vint-gpios = <&gpio0 2 0>;
	};
};