boards/arm/stm32g071b_disco/stm32g071b_disco.dts

/*
 * Copyright 2021 The Chromium OS Authors
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;
#include <st/g0/stm32g071Xb.dtsi>
#include <st/g0/stm32g071r(6-8-b)tx-pinctrl.dtsi>

/ {
	model = "STM32G071B DEMO board";
	compatible = "st,stm32g071-demo";

	chosen {
		zephyr,console = &usart3;
		zephyr,shell-uart = &usart3;
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
	};

	leds {
		compatible = "gpio-leds";
		red_led_4: led4 {
			gpios = <&gpiod 9 GPIO_ACTIVE_HIGH>;
			label = "TO_REC";
		};
		red_led_5: led5 {
			gpios = <&gpiod 8 GPIO_ACTIVE_HIGH>;
			label = "TO_PLUG";
		};
		green_led_6: led6 {
			gpios = <&gpiod 5 GPIO_ACTIVE_HIGH>;
			label = "SINK_SPY";
		};
		green_led_7: led7 {
			gpios = <&gpioc 12 GPIO_ACTIVE_HIGH>;
			label = "SOURCE";
		};
	};

	gpio_keys {
		compatible = "gpio-keys";
		joy_sel: button0 {
			label = "JOY_SEL";
			gpios = <&gpioc 0 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>;
		};
		joy_left: button1 {
			label = "JOY_LEFT";
			gpios = <&gpioc 1 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>;
		};
		joy_down: button2 {
			label = "JOY_DOWN";
			gpios = <&gpioc 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>;
		};
		joy_right: button3 {
			label = "JOY_RIGHT";
			gpios = <&gpioc 3 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>;
		};
		joy_up: button4 {
			label = "JOY_UP";
			gpios = <&gpioc 4 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>;
		};
	};

	aliases {
		led0 = &red_led_4;
		led1 = &red_led_5;
		led2 = &green_led_6;
		led3 = &green_led_7;
		sw0 = &joy_sel;
		sw1 = &joy_left;
		sw2 = &joy_down;
		sw3 = &joy_right;
		sw4 = &joy_up;
	};
};

&clk_hsi {
	status = "okay";
};

&pll {
	div-m = <1>;
	mul-n = <8>;
	div-p = <2>;
	div-q = <2>;
	div-r = <2>;
	clocks = <&clk_hsi>;
	status = "okay";
};

&rcc {
	clocks = <&pll>;
	clock-frequency = <DT_FREQ_M(64)>;
	ahb-prescaler = <1>;
	apb1-prescaler = <1>;
};

&usart3 {
	pinctrl-0 = <&usart3_tx_pc10 &usart3_rx_pc11>;
	current-speed = <115200>;
	status = "okay";
};

&iwdg {
	status = "okay";
};