boards/ambiq/apollo4p_evb/apollo4p_evb.dts

/dts-v1/;
#include <ambiq/ambiq_apollo4p.dtsi>
#include <zephyr/dt-bindings/input/input-event-codes.h>

#include "apollo4p_evb-pinctrl.dtsi"

/ {
	model = "Ambiq Apollo4 Plus evaluation board";
	compatible = "ambiq,apollo4p_evb";

	chosen {
		zephyr,itcm = &tcm;
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zephyr,console = &uart0;
		zephyr,shell-uart = &uart0;
		zephyr,uart-pipe = &uart0;
		zephyr,flash-controller = &flash;
	};

	aliases {
		watchdog0 = &wdt0;
		led0 = &led0;
		led1 = &led1;
		led2 = &led2;
		sw0 = &button0;
		sw1 = &button1;
		rtc = &rtc0;
	};

	leds {
		compatible = "gpio-leds";
		led0: led_0 {
			gpios = <&gpio0_31 30 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "LED 0";
		};
		led1: led_1 {
			gpios = <&gpio64_95 26 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "LED 1";
		};
		led2: led_2 {
			gpios = <&gpio96_127 1 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "LED 2";
		};
	};

	buttons {
		compatible = "gpio-keys";
		polling-mode;
		button0: button_0 {
			gpios = <&gpio0_31 18 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "BTN0";
			zephyr,code = <INPUT_KEY_0>;
			status = "okay";
		};
		button1: button_1 {
			gpios = <&gpio0_31 19 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "BTN1";
			zephyr,code = <INPUT_KEY_1>;
			status = "okay";
		};
	};
};

&uart0 {
	current-speed = <115200>;
	pinctrl-0 = <&uart0_default>;
	pinctrl-names = "default";
	status = "okay";
};

&itm {
	pinctrl-0 = <&itm_default>;
	pinctrl-names = "default";
	status = "okay";
};

&adc0 {
compatible = "ambiq,adc";
	pinctrl-0 = <&adc0_default>;
	pinctrl-names = "default";
	status = "okay";
};

&counter0 {
	status = "okay";
};

&rtc0 {
	status = "okay";
	clock = "XTAL";
};

&wdt0 {
	status = "okay";
};

&iom0_i2c {
	compatible = "ambiq,i2c";
	pinctrl-0 = <&i2c0_default>;
	pinctrl-names = "default";
	clock-frequency = <I2C_BITRATE_STANDARD>;
	scl-gpios = <&gpio0_31 5 (GPIO_OPEN_DRAIN | GPIO_PULL_UP)>;
	sda-gpios = <&gpio0_31 6 (GPIO_OPEN_DRAIN | GPIO_PULL_UP)>;
	status = "okay";
};

&iom1_spi {
	compatible = "ambiq,spi";
	pinctrl-0 = <&spi1_default>;
	pinctrl-names = "default";
	cs-gpios = <&gpio0_31 11 GPIO_ACTIVE_LOW>;
	clock-frequency = <1000000>;
	status = "okay";
};

&mspi0 {
	pinctrl-0 = <&mspi0_default>;
	pinctrl-names = "default";
	status = "okay";
};

&mspi1 {
	pinctrl-0 = <&mspi1_default>;
	pinctrl-names = "default";
	status = "okay";
};

&mspi2 {
	pinctrl-0 = <&mspi2_default>;
	pinctrl-names = "default";
	status = "okay";
};

&flash0 {
	erase-block-size = <2048>;
	write-block-size = <16>;

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

		/* Set 16KB of storage at the end of the 1952KB of flash */
		storage_partition: partition@1e4000 {
			label = "storage";
			reg = <0x001e4000 0x4000>;
		};
	};
};

zephyr_udc0: &usb {
	vddusb33-gpios = <&gpio96_127 7 (GPIO_PULL_UP)>;
	vddusb0p9-gpios = <&gpio96_127 5 (GPIO_PULL_UP)>;
	status = "okay";
};

&gpio0_31 {
	status = "okay";
};

&gpio32_63 {
	status = "okay";
};

&gpio64_95 {
	status = "okay";
};

&gpio96_127 {
	status = "okay";
};