boards/adi/max32655evkit/max32655evkit_max32655_m4.dts

/*
 * Copyright (c) 2023-2025 Analog Devices, Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;

 #include <adi/max32/max32655.dtsi>
 #include <adi/max32/max32655-pinctrl.dtsi>
 #include <zephyr/dt-bindings/gpio/adi-max32-gpio.h>
#include <zephyr/dt-bindings/input/input-event-codes.h>

/ {
	 model = "Analog Devices MAX32655EVKIT";
	 compatible = "adi,max32655evkit";

	 chosen {
		 zephyr,console = &uart0;
		 zephyr,shell-uart = &uart0;
		 zephyr,sram = &sram2;
		 zephyr,flash = &flash0;
	 };

	 leds {
		 compatible = "gpio-leds";
		 led1: led_1 {
			 gpios = <&gpio0 24 GPIO_ACTIVE_LOW>;
			 label = "Red LED";
		 };
		 led2: led_2 {
			 gpios = <&gpio0 25 GPIO_ACTIVE_LOW>;
			 label = "Blue LED";
		 };
	 };

	 buttons {
		 compatible = "gpio-keys";
		 pb1: pb1 {
			 gpios = <&gpio0 18 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			 label = "SW2";
			 zephyr,code = <INPUT_KEY_0>;
		 };
		 pb2: pb2 {
			 gpios = <&gpio0 19 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			 label = "SW3";
			 zephyr,code = <INPUT_KEY_1>;
		 };
		 pb_wakeup: pb_wakeup {
			gpios = <&gpio3 1 (GPIO_PULL_UP | GPIO_ACTIVE_LOW
								| MAX32_GPIO_VSEL_VDDIOH)>;
			label = "Wakeup";
			zephyr,code = <INPUT_KEY_WAKEUP>;
		};
	 };

	 /* These aliases are provided for compatibility with samples */
	 aliases {
		led0 = &led1;
		led1 = &led2;
		sw0 = &pb1;
		sw1 = &pb2;
		watchdog0 = &wdt0;
	 };
};

&uart0 {
	pinctrl-0 = <&uart0a_tx_p0_1 &uart0a_rx_p0_0>;
	pinctrl-names = "default";
	current-speed = <115200>;
	data-bits = <8>;
	parity = "none";
	status = "okay";
};

&clk_ipo {
	status = "okay";
};

/*
 * ERTCO is required for counter RTC
 */
&clk_ertco {
	status = "okay";
};

&gpio0 {
	status = "okay";
};

&gpio1 {
	status = "okay";
};

&gpio2 {
	status = "okay";
};

&gpio3 {
	status = "okay";
};

&trng {
	status = "okay";
};

&i2c0 {
	status = "okay";
	pinctrl-0 = <&i2c0_scl_p0_10 &i2c0_sda_p0_11>;
	pinctrl-names = "default";
};

&dma0 {
	status = "okay";
};

&wdt0 {
	status = "okay";
};

&spi0 {
	status = "okay";
	pinctrl-0 = <&spi0_mosi_p0_5 &spi0_miso_p0_6 &spi0_sck_p0_7 &spi0_ss0_p0_4>;
	pinctrl-names = "default";
};

&w1 {
	pinctrl-0 = <&owm_io_p0_6 &owm_pe_p0_7>;
	pinctrl-names = "default";
};

&rtc_counter {
	status = "okay";
};

&spi0_mosi_p0_5 {
	power-source = <MAX32_VSEL_VDDIOH>;
};

&spi0_miso_p0_6 {
	power-source = <MAX32_VSEL_VDDIOH>;
};

&spi0_sck_p0_7 {
	power-source = <MAX32_VSEL_VDDIOH>;
};

&spi0 {
	status = "okay";
	pinctrl-0 = <&spi0_mosi_p0_5 &spi0_miso_p0_6 &spi0_sck_p0_7>;
	pinctrl-names = "default";
	cs-gpios = <&gpio0 4 (GPIO_ACTIVE_LOW | MAX32_GPIO_VSEL_VDDIOH)>;

	spi0_cs0_flash: w25q128@0 {
		compatible = "jedec,spi-nor";
		/* 134217728 bits = 16 Mbytes */
		size = <0x8000000>;
		reg = <0>;
		spi-max-frequency = <10000000>;
		jedec-id = [ef 40 18];
		hold-gpios = <&gpio0 9 (GPIO_ACTIVE_LOW | MAX32_GPIO_VSEL_VDDIOH)>;
		wp-gpios = <&gpio0 8 (GPIO_ACTIVE_HIGH | MAX32_GPIO_VSEL_VDDIOH)>;
		status = "okay";
	};
};