boards/arm/stm32f0_disco/stm32f0_disco.dts

/*
 * Copyright (c) 2018 Nathan Tsoi <nathan@vertile.com>
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;
#include <st/stm32f051.dtsi>

/ {
	model = "STMicroelectronics STM32F0DISCOVERY board";
	compatible = "st,stm32f058r8-discovery", "st,stm32f051";

	chosen {
		zephyr,console = &usart1;
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
	};

	leds {
		compatible = "gpio-leds";
		green_led_3: led@0 {
			gpios = <&gpioc 9 GPIO_INT_ACTIVE_HIGH>;
			label = "User LD3";
		};
		blue_led_4: led@1 {
			gpios = <&gpioc 8 GPIO_INT_ACTIVE_HIGH>;
			label = "User LD4";
		};
	};

	gpio_keys {
		compatible = "gpio-keys";
		#address-cells = <1>;
		#size-cells = <0>;
		user_button: button@0 {
			label = "Key";
			gpios = <&gpioa 0 GPIO_INT_ACTIVE_LOW>;
		};
	};

	aliases {
		led0 = &green_led_3;
		led1 = &blue_led_4;
		sw0 = &user_button;
	};
};

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

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

&flash0 {
	partitions {
		/*
		 * If chosen's zephyr,code-partion is unset, the image will be
		 * linked into the entire flash device.  If it points to an
		 * individual partition, the code will be linked to, and
		 * restricted to that partition.
		 */
		compatible = "fixed-partitions";
		#address-cells = <1>;
		#size-cells = <1>;

		boot_partition: partition@0 {
			label = "mcuboot";
			reg = <0x00000000 0x00002000>;
			read-only;
		};

		/*
		 * The flash starting at offset 0x2000 and ending at
		 * offset 0x3999 is reserved for use by the application.
		 */

		slot0_partition: partition@4000 {
			label = "image-0";
			reg = <0x00004000 0x00004000>;
		};
		slot1_partition: partition@40000 {
			label = "image-1";
			reg = <0x00008000 0x00004000>;
		};
		scratch_partition: partition@60000 {
			label = "image-scratch";
			reg = <0x0000C000 0x00004000>;
		};
	};
};