1/*
2 * Copyright (c) 2019 Libre Solar Technologies GmbH
3 * Copyright (c) 2020 Sparks, Circuits and Robotics SL
4 *
5 * SPDX-License-Identifier: Apache-2.0
6 */
7
8/dts-v1/;
9#include <st/l4/stm32l452Xe.dtsi>
10#include "arduino_r3_connector.dtsi"
11#include <zephyr/dt-bindings/input/input-event-codes.h>
12
13/ {
14	model = "STMicroelectronics STM32L452RE-NUCLEO board";
15	compatible = "st,stm32l452re-nucleo";
16
17	chosen {
18		zephyr,console = &usart2;
19		zephyr,shell-uart = &usart2;
20		zephyr,sram = &sram0;
21		zephyr,flash = &flash0;
22		zephyr,canbus = &can1;
23	};
24
25	gpio_keys {
26		compatible = "gpio-keys";
27		user_button: button {
28			label = "User";
29			gpios = <&gpioc 13 GPIO_ACTIVE_LOW>;
30			zephyr,code = <INPUT_KEY_0>;
31		};
32	};
33
34	aliases {
35		sw0 = &user_button;
36	};
37};
38
39&clk_lsi {
40	status = "okay";
41};
42
43&clk_hsi {
44	status = "okay";
45};
46
47&pll {
48	div-m = <1>;
49	mul-n = <20>;
50	div-p = <7>;
51	div-q = <2>;
52	div-r = <4>;
53	clocks = <&clk_hsi>;
54	status = "okay";
55};
56
57&rcc {
58	clocks = <&pll>;
59	clock-frequency = <DT_FREQ_M(80)>;
60	ahb-prescaler = <1>;
61	apb1-prescaler = <1>;
62	apb2-prescaler = <1>;
63};
64
65&usart1 {
66	pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
67	pinctrl-names = "default";
68	current-speed = <115200>;
69};
70
71&usart2 {
72	pinctrl-0 = <&usart2_tx_pa2 &usart2_rx_pa3>;
73	pinctrl-names = "default";
74	current-speed = <115200>;
75	status = "okay";
76};
77
78&spi1 {
79	pinctrl-0 = <&spi1_sck_pa5 &spi1_miso_pa6 &spi1_mosi_pa7>;
80	pinctrl-names = "default";
81	cs-gpios = <&gpiob 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
82	status = "okay";
83};
84
85&i2c1 {
86	pinctrl-0 = <&i2c1_scl_pb8 &i2c1_sda_pb7>;
87	pinctrl-names = "default";
88	clock-frequency = <I2C_BITRATE_FAST>;
89	status = "okay";
90};
91
92&timers2 {
93	status = "okay";
94
95	pwm2: pwm {
96		status = "okay";
97		pinctrl-0 = <&tim2_ch1_pa0>;
98		pinctrl-names = "default";
99	};
100};
101
102&can1 {
103	pinctrl-0 = <&can1_rx_pa11 &can1_tx_pa12>;
104	pinctrl-names = "default";
105	bus-speed = <125000>;
106	status = "okay";
107};
108
109&rtc {
110	clocks = <&rcc STM32_CLOCK_BUS_APB1 0x10000000>,
111		 <&rcc STM32_SRC_LSI RTC_SEL(2)>;
112	status = "okay";
113};
114
115&flash0 {
116	partitions {
117		compatible = "fixed-partitions";
118		#address-cells = <1>;
119		#size-cells = <1>;
120		/*
121		 * Reserve the final 16 KiB for file system partition
122		 */
123		storage_partition: partition@7c000 {
124			label = "storage";
125			reg = <0x0007c000 0x00008000>;
126		};
127	};
128};
129