boards/arm/stm32l1_disco/stm32l1_disco.dts

/*
 * Copyright (c) 2019 eTactica ehf
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;
#include <st/l1/stm32l151Xb.dtsi>

/ {
	model = "STMicroelectronics STM32L1DISCOVERY board";
	compatible = "st,stm32l1discovery", "st,stm32l151";

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

	leds {
		compatible = "gpio-leds";
		green_led: ld3 {
			gpios = <&gpiob 7 GPIO_INT_ACTIVE_HIGH>;
			label = "User LD3";
		};
		blue_led: ld4 {
			gpios = <&gpiob 6 GPIO_INT_ACTIVE_HIGH>;
			label = "User LD4";
		};
	};

	gpio_keys {
		compatible = "gpio-keys";
		user_button: button {
			label = "User";
			gpios = <&gpioa 0 GPIO_INT_ACTIVE_LOW>;
		};
	};

	aliases {
		led0 = &green_led;
		led1 = &blue_led;
		sw0 = &user_button;
	};
};

&usart1 {
	current-speed = <115200>;
	status = "okay";
};

&usart2 {
	current-speed = <115200>;
	status = "okay";
};

&usart3 {
	current-speed = <115200>;
	status = "okay";
};

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

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

&spi1 {
	status = "okay";
};

&spi2 {
	status = "okay";
};