boards/arm/96b_neonkey/96b_neonkey.dts

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

/dts-v1/;
#include <st/f4/stm32f411Xe.dtsi>
#include <st/f4/stm32f411c(c-e)ux-pinctrl.dtsi>

/ {
	model = "Tocoding Neonkey 96boards";
	compatible = "tocoding,neonkey";

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

	leds {
		compatible = "gpio-leds";
		green_led_0: led_0 {
			gpios = <&gpiob 12 GPIO_ACTIVE_HIGH>;
			label = "USR0 LED";
		};
		green_led_1: led_1 {
			gpios = <&gpiob 13 GPIO_ACTIVE_HIGH>;
			label = "USR1 LED";
		};
		green_led_2: led_2 {
			gpios = <&gpiob 14 GPIO_ACTIVE_HIGH>;
			label = "USR2 LED";
		};
		green_led_3: led_3 {
			gpios = <&gpiob 15 GPIO_ACTIVE_HIGH>;
			label = "USR3 LED";
		};
	};

	gpio_keys {
		compatible = "gpio-keys";
		user_button: button_0 {
			label = "User";
			gpios = <&gpiob 2 GPIO_ACTIVE_LOW>;
		};
	};

	aliases {
		led0 = &green_led_0;
		led1 = &green_led_1;
		led2 = &green_led_2;
		led3 = &green_led_3;
		sw0 = &user_button;
	};
};

&clk_lsi {
	status = "okay";
};

&clk_hsi {
	status = "okay";
};

&pll {
	div-m = <16>;
	mul-n = <336>;
	div-p = <4>;
	clocks = <&clk_hsi>;
	status = "okay";
};

&rcc {
	clocks = <&pll>;
	clock-frequency = <DT_FREQ_M(84)>;
	ahb-prescaler = <1>;
	apb1-prescaler = <2>;
	apb2-prescaler = <1>;
};

&usart1 {
	pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
	pinctrl-names = "default";
	current-speed = <115200>;
	status = "okay";
};

&i2c1 {
	pinctrl-0 = <&i2c1_scl_pb6 &i2c1_sda_pb7>;
	pinctrl-names = "default";
	status = "okay";
	clock-frequency = <I2C_BITRATE_FAST>;
};

&i2c2 {
	pinctrl-0 = <&i2c2_scl_pb10 &i2c2_sda_pb3>;
	pinctrl-names = "default";
	status = "okay";
	clock-frequency = <I2C_BITRATE_FAST>;
};

&i2c3 {
	pinctrl-0 = <&i2c3_scl_pa8 &i2c3_sda_pb4>;
	pinctrl-names = "default";
	status = "okay";
	clock-frequency = <I2C_BITRATE_STANDARD>;

	lp3943@60 {
		compatible = "ti,lp3943";
		reg = <0x60>;
	};
};

&spi1 {
	pinctrl-0 = <&spi1_nss_pa4 &spi1_sck_pa5
		     &spi1_miso_pa6 &spi1_mosi_pa7>;
	pinctrl-names = "default";
	status = "okay";
};

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