zephyr/boards/ambiq/apollo3_evb/apollo3_evb.dts

/dts-v1/;
#include <ambiq/ambiq_apollo3_blue.dtsi>

#include "apollo3_evb-pinctrl.dtsi"
#include <zephyr/dt-bindings/input/input-event-codes.h>

/ {
	model = "Ambiq Apollo3 Blue evaluation board";
	compatible = "ambiq,apollo3_evb";

	chosen {
		zephyr,itcm = &tcm;
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zephyr,console = &uart0;
		zephyr,shell-uart = &uart0;
		zephyr,uart-mcumgr = &uart0;
		zephyr,uart-pipe = &uart0;
		zephyr,flash-controller = &flash;
		zephyr,bt_hci = &bt_hci_apollo;
		zephyr,code-partition = &slot0_partition;
	};

	aliases {
		watchdog0 = &wdt0;
		led0 = &led0;
		led1 = &led1;
		led2 = &led2;
		sw0 = &button0;
		sw1 = &button1;
		bootloader-led0 = &led0;
		mcuboot-led0 = &led0;
	};

	leds {
		compatible = "gpio-leds";
		led0: led_0 {
			gpios = <&gpio0_31 10 GPIO_ACTIVE_LOW>;
			label = "LED 0";
		};
		led1: led_1 {
			gpios = <&gpio0_31 30 GPIO_ACTIVE_LOW>;
			label = "LED 1";
		};
		led2: led_2 {
			gpios = <&gpio0_31 15 GPIO_ACTIVE_LOW>;
			label = "LED 2";
		};
		led3: led_3 {
			gpios = <&gpio0_31 14 GPIO_ACTIVE_LOW>;
			label = "LED 3";
		};
		led4: led_4 {
			gpios = <&gpio0_31 17 GPIO_ACTIVE_LOW>;
			label = "LED 4";
		};
	};

	buttons {
		compatible = "gpio-keys";
		button0: button_0 {
			gpios = <&gpio0_31 16 GPIO_ACTIVE_LOW>;
			label = "BTN0";
			zephyr,code = <INPUT_KEY_0>;
		};
		button1: button_1 {
			gpios = <&gpio0_31 18 GPIO_ACTIVE_LOW>;
			label = "BTN1";
			zephyr,code = <INPUT_KEY_1>;
		};
		button2: button_2 {
			gpios = <&gpio0_31 19 GPIO_ACTIVE_LOW>;
			label = "BTN2";
			zephyr,code = <INPUT_KEY_2>;
		};
	};
};

&flash0 {
	erase-block-size = <8192>;
	write-block-size = <4>;

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

		internal_boot_partition: partition@0 {
			label = "internal_bootloader";
			reg = <0x00000000 0xc000>;
		};

		boot_partition: partition@c000 {
			label = "mcuboot";
			reg = <0x0000c000 0xc000>;
		};
		slot0_partition: partition@18000 {
			label = "image-0";
			reg = <0x00018000 0x72000>;
		};
		slot1_partition: partition@8a000 {
			label = "image-1";
			reg = <0x0008a000 0x72000>;
		};

		/* Set 16KB of storage at the end of the 1024KB of flash */
		storage_partition: partition@fc000 {
			label = "storage";
			reg = <0x000fc000 0x4000>;
		};
	};
};

&stimer0 {
	clk-source = <3>;
};

&bleif {
	pinctrl-0 = <&bleif_default>;
	pinctrl-names = "default";
	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";
};

&wdt0 {
	status = "okay";
};

&spi0 {
	compatible = "ambiq,spi";
	pinctrl-0 = <&spi0_default>;
	pinctrl-names = "default";
	cs-gpios = <&gpio0_31 11 GPIO_ACTIVE_LOW>;
	clock-frequency = <DT_FREQ_M(1)>;
	status = "okay";
};

&i2c3 {
	compatible = "ambiq,i2c";
	pinctrl-0 = <&i2c3_default>;
	pinctrl-names = "default";
	clock-frequency = <I2C_BITRATE_STANDARD>;
	scl-gpios = <&gpio32_63 10 (GPIO_OPEN_DRAIN | GPIO_PULL_UP)>;
	sda-gpios = <&gpio32_63 11 (GPIO_OPEN_DRAIN | GPIO_PULL_UP)>;
	status = "okay";
};

&counter0 {
	status = "okay";
};

&counter1 {
	status = "okay";
};

&counter2 {
	status = "okay";
};

&counter3 {
	status = "okay";
};

&counter4 {
	status = "okay";
};

&counter5 {
	status = "okay";
};

&counter6 {
	status = "okay";
};

&counter7 {
	status = "okay";
};

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

&gpio0_31 {
	status = "okay";
};

&gpio32_63 {
	status = "okay";
};