boards/arm/stm32l476g_disco/stm32l476g_disco.dts

/*
 * Copyright (c) 2017 Arthur Sfez
 *
 * Based on stm32l496g_disco:
 *
 * Copyright (c) 2017 Linaro Limited
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;
#include <st/l4/stm32l476Xg.dtsi>
#include <st/l4/stm32l476v(c-e-g)tx-pinctrl.dtsi>

/ {
	model = "STMicroelectronics STM32L476G-DISCO board";
	compatible = "st,stm32l476g-disco";

	chosen {
		zephyr,console = &usart2;
		zephyr,shell-uart = &usart2;
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
	};

	leds {
		compatible = "gpio-leds";
		green_led_4: led_4 {
			gpios = <&gpiob 2 GPIO_ACTIVE_HIGH>;
			label = "User LD4";
		};
		green_led_5: led_5 {
			gpios = <&gpioe 8 GPIO_ACTIVE_HIGH>;
			label = "User LD5";
		};
	};

	gpio_keys {
		compatible = "gpio-keys";
		joy_center: joystick_center {
			label = "joystick center";
			gpios = <&gpioa 0 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>;
		};
		joy_down: joystick_down {
			label = "joystick down";
			gpios = <&gpioa 5 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>;
		};
		joy_up: joystick_up {
			label = "joystick up";
			gpios = <&gpioa 3 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>;
		};
		joy_left: joystick_left {
			label = "joystick left";
			gpios = <&gpioa 1 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>;
		};
		joy_right: joystick_right {
			label = "joystick right";
			gpios = <&gpioa 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>;
		};
	};

	aliases {
		led0 = &green_led_4;
		sw0 = &joy_center;
	};
};

&clk_lsi {
	status = "okay";
};

&clk_hsi {
	status = "okay";
};

&pll {
	div-m = <1>;
	mul-n = <20>;
	div-p = <7>;
	div-q = <2>;
	div-r = <4>;
	clocks = <&clk_hsi>;
	status = "okay";
};

&rcc {
	clocks = <&pll>;
	clock-frequency = <DT_FREQ_M(80)>;
	ahb-prescaler = <1>;
	apb1-prescaler = <1>;
	apb2-prescaler = <1>;
};

&usart2 {
	pinctrl-0 = <&usart2_tx_pd5 &usart2_rx_pd6>;
	pinctrl-names = "default";
	current-speed = <115200>;
	status = "okay";
};

&rtc {
	clocks = <&rcc STM32_CLOCK_BUS_APB1 0x10000000>,
		 <&rcc STM32_SRC_LSI RTC_SEL(2)>;
	status = "okay";

	backup_regs {
		status = "okay";
	};
};