/*
 * Copyright (c) 2018 Philémon Jaermann
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;
#include <st/f4/stm32f446Xe.dtsi>
#include <st/f4/stm32f446r(c-e)tx-pinctrl.dtsi>
#include "arduino_r3_connector.dtsi"

/ {
	model = "STMicroelectronics STM32F446RE-NUCLEO board";
	compatible = "st,stm32f446re-nucleo";

	chosen {
		zephyr,console = &usart2;
		zephyr,shell-uart = &usart2;
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zephyr,canbus = &can2;
	};

	leds {
		compatible = "gpio-leds";
		green_led_2: led_2 {
			gpios = <&gpioa 5 GPIO_ACTIVE_HIGH>;
			label = "User LD2";
		};
	};

	gpio_keys {
		compatible = "gpio-keys";
		user_button: button {
			label = "User";
			gpios = <&gpioc 13 GPIO_ACTIVE_LOW>;
		};
	};

	aliases {
		led0 = &green_led_2;
		sw0 = &user_button;
	};
};

&clk_hse {
	hse-bypass;
	clock-frequency = <DT_FREQ_M(8)>; /* STLink 8MHz clock */
	status = "okay";
};

&pll {
	div-m = <8>;
	mul-n = <384>;
	div-p = <4>;
	div-q = <8>;
	clocks = <&clk_hse>;
	status = "okay";
};

&rcc {
	clocks = <&pll>;
	clock-frequency = <DT_FREQ_M(96)>;
	ahb-prescaler = <1>;
	apb1-prescaler = <2>;
	apb2-prescaler = <1>;
};

&usart1 {
	pinctrl-0 = <&usart1_tx_pb6 &usart1_rx_pb7>;
	pinctrl-names = "default";
	current-speed = <115200>;
	status = "okay";
};

&usart2 {
	pinctrl-0 = <&usart2_tx_pa2 &usart2_rx_pa3>;
	pinctrl-names = "default";
	current-speed = <115200>;
	status = "okay";
};

&i2c1 {
	pinctrl-0 = <&i2c1_scl_pb8 &i2c1_sda_pb9>;
	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_FAST>;
};

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

&rtc {
	status = "okay";
};

&backup_sram {
	status = "okay";
};

&can1 {
	/* CAUTION: PB8 and PB9 may conflict with same pins of I2C1 */
	pinctrl-0 = <&can1_rx_pb8 &can1_tx_pb9>;
	pinctrl-names = "default";
	bus-speed = <125000>;
	status = "okay";
};

&can2 {
	pinctrl-0 = <&can2_rx_pb12 &can2_tx_pb13>;
	pinctrl-names = "default";
	bus-speed = <125000>;
	status = "okay";
};

&flash0 {

	partitions {
		compatible = "fixed-partitions";
		#address-cells = <1>;
		#size-cells = <1>;

		boot_partition: partition@0 {
			label = "mcuboot";
			reg = <0x00000000 DT_SIZE_K(64)>;
			read-only;
		};

		/*
		 * The flash starting at 0x00010000 and ending at
		 * 0x0001ffff (sectors 16-31) is reserved for use
		 * by the application.
		 */
		storage_partition: partition@10000 {
			label = "storage";
			reg = <0x00010000 DT_SIZE_K(64)>;
		};

		slot0_partition: partition@20000 {
			label = "image-0";
			reg = <0x00020000 DT_SIZE_K(128)>;
		};
		slot1_partition: partition@40000 {
			label = "image-1";
			reg = <0x00040000 DT_SIZE_K(128)>;
		};
		scratch_partition: partition@60000 {
			label = "image-scratch";
			reg = <0x00060000 DT_SIZE_K(128)>;
		};
	};
};