boards/arm/96b_carbon/96b_carbon.dts

/*
 * Copyright (c) 2017 Linaro Limited
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;
#include <st/f4/stm32f401Xe.dtsi>

/ {
	model = "Seeed Studio Carbon 96boards";
	compatible = "seeed,carbon", "st,stm32f401";

	chosen {
		zephyr,console = &usart1;
		zephyr,shell-uart = &usart1;
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zephyr,code-partition = &slot0_partition;
	};

	leds {
		compatible = "gpio-leds";
		green_led_1: led_1 {
			gpios = <&gpiod 2 GPIO_INT_ACTIVE_HIGH>;
			label = "USR1 LED";
		};
		green_led_2: led_2 {
			gpios = <&gpioa 15 GPIO_INT_ACTIVE_HIGH>;
			label = "USR2 LED";
		};
		bt_blue_led: led_3 {
			gpios = <&gpioa 15 GPIO_INT_ACTIVE_HIGH>;
			label = "BT LED";
		};
	};

	gpio_keys {
		compatible = "gpio-keys";
		user_button: button {
			label = "User";
			gpios = <&gpiob 2 GPIO_INT_ACTIVE_LOW>;
		};
	};

	aliases {
		led0 = &green_led_1;
		led1 = &green_led_2;
		led2 = &bt_blue_led;
		sw0 = &user_button;
	};
};

&usart1 {
	current-speed = <115200>;
	pinctrl-0 = <&usart1_pins_b>;
	pinctrl-names = "default";
	status = "okay";
};

&usart2 {
	current-speed = <115200>;
	pinctrl-0 = <&usart2_pins_a>;
	pinctrl-names = "default";
	status = "okay";
};

&usart6 {
	current-speed = <115200>;
	pinctrl-0 = <&usart6_pins_a>;
	pinctrl-names = "default";
	status = "okay";
};

&i2c1 {
	status = "okay";
	clock-frequency = <I2C_BITRATE_FAST>;
};

&i2c2 {
	status = "okay";
	clock-frequency = <I2C_BITRATE_FAST>;
};

&spi1 {
	status = "okay";

	/* Nordic nRF51822-QFAC */
	bt-hci@0 {
		compatible = "zephyr,bt-hci-spi";
		reg = <0>;
		reset-gpios = <&gpiob 4 0>;
		irq-gpios = <&gpiob 1 0>;
		spi-max-frequency = <2000000>;
		label = "BT_HCI";
	};
};

&spi2 {
	status = "okay";
};

&usbotg_fs {
	status = "okay";
};

&flash0 {
	/*
	 * For more information, see:
	 * http://docs.zephyrproject.org/latest/guides/dts/index.html#flash-partitions
	 */
	partitions {
		compatible = "fixed-partitions";
		#address-cells = <1>;
		#size-cells = <1>;

		boot_partition: partition@0 {
			label = "mcuboot";
			reg = <0x00000000 0x00008000>;
			read-only;
		};

		/*
		 * The flash starting at offset 0x00008000 and ending at
		 * offset 0x0001ffff (sectors 2 through 4) is reserved for
		 * use by the application.
		 */

		slot0_partition: partition@20000 {
			label = "image-0";
			reg = <0x00020000 0x00020000>;
		};
		slot1_partition: partition@40000 {
			label = "image-1";
			reg = <0x00040000 0x00020000>;
		};
		scratch_partition: partition@60000 {
			label = "image-scratch";
			reg = <0x00060000 0x00020000>;
		};
	};
};

&rtc {
	status = "okay";
};