1/*
2 * Copyright (c) 2023-2024 STMicroelectronics
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7/dts-v1/;
8#include <st/h7/stm32h750Xb.dtsi>
9#include <st/h7/stm32h750xbhx-pinctrl.dtsi>
10#include "arduino_r3_connector.dtsi"
11#include <zephyr/dt-bindings/input/input-event-codes.h>
12
13/ {
14	model = "STMicroelectronics STM32H750B DISCOVERY KIT";
15	compatible = "st,stm32h750b-dk";
16
17	chosen {
18		zephyr,console = &usart3;
19		zephyr,shell-uart = &usart3;
20		zephyr,sram = &sram0;
21		zephyr,flash = &flash0;
22		zephyr,flash-controller = &mt25ql512ab1;
23		zephyr,display = &ltdc;
24	};
25
26	sdram2: sdram@d0000000 {
27		compatible = "zephyr,memory-region", "mmio-sram";
28		device_type = "memory";
29		reg = <0xd0000000 DT_SIZE_M(16)>; /* 128Mbit */
30		zephyr,memory-region = "SDRAM2";
31		zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_RAM) )>;
32	};
33
34	ext_memory: memory@90000000 {
35		compatible = "zephyr,memory-region";
36		reg = <0x90000000 DT_SIZE_M(256)>; /* max addressable area */
37		zephyr,memory-region = "EXTMEM";
38		/* The ATTR_MPU_EXTMEM attribut causing a MPU FAULT */
39		zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_IO) )>;
40	};
41
42	leds {
43		compatible = "gpio-leds";
44		red_led: led_1 {
45			gpios = <&gpioi 13 GPIO_ACTIVE_LOW>;
46			label = "USER1 LD6";
47		};
48		green_led: led_2 {
49			gpios = <&gpioj 2 GPIO_ACTIVE_LOW>;
50			label = "USER2 LD7";
51		};
52	};
53
54	gpio_keys {
55		compatible = "gpio-keys";
56		user_button: button {
57			label = "User";
58			gpios = <&gpioc 13 GPIO_ACTIVE_HIGH>;
59			zephyr,code = <INPUT_KEY_0>;
60		};
61	};
62
63	aliases {
64		led0 = &green_led;
65		led1 = &red_led;
66		sw0 = &user_button;
67		die-temp0 = &die_temp;
68	};
69};
70
71&clk_hse {
72	clock-frequency = <DT_FREQ_M(25)>;
73	hse-bypass;
74	status = "okay";
75};
76
77&clk_lse {
78	status = "okay";
79};
80
81&ltdc {
82	pinctrl-0 = <&ltdc_r0_pi15 &ltdc_r1_pj0 &ltdc_r2_pj1 &ltdc_r3_ph9
83		&ltdc_r4_pj3 &ltdc_r5_pj4 &ltdc_r6_pj5 &ltdc_r7_pj6
84		&ltdc_g0_pj7 &ltdc_g1_pj8 &ltdc_g2_pj9 &ltdc_g3_pj10
85		&ltdc_g4_pj11 &ltdc_g5_pi0 &ltdc_g6_pi1 &ltdc_g7_pk2
86		&ltdc_b0_pj12 &ltdc_b1_pj13 &ltdc_b2_pj14 &ltdc_b3_pj15
87		&ltdc_b4_pk3 &ltdc_b5_pk4 &ltdc_b6_pk5 &ltdc_b7_pk6
88		&ltdc_de_pk7 &ltdc_clk_pi14 &ltdc_hsync_pi12 &ltdc_vsync_pi9>;
89	pinctrl-names = "default";
90
91	disp-on-gpios = <&gpiod 7 GPIO_ACTIVE_HIGH>;
92
93	ext-sdram = <&sdram2>;
94	status = "okay";
95
96	clocks = <&rcc STM32_CLOCK_BUS_APB3 0x00000008>,
97		<&rcc STM32_SRC_PLL3_R NO_SEL>;
98
99	width = <480>;
100	height = <272>;
101	pixel-format = <PANEL_PIXEL_FORMAT_RGB_565>;
102	display-timings {
103		compatible = "zephyr,panel-timing";
104		de-active = <1>;
105		pixelclk-active = <0>;
106		hsync-active = <0>;
107		vsync-active = <0>;
108		hsync-len = <1>;
109		vsync-len = <10>;
110		hback-porch = <43>;
111		vback-porch = <12>;
112		hfront-porch = <8>;
113		vfront-porch = <4>;
114	};
115	def-back-color-red = <0xFF>;
116	def-back-color-green = <0xFF>;
117	def-back-color-blue = <0xFF>;
118};
119
120&pll {
121	div-m = <5>;
122	mul-n = <192>;
123	div-p = <2>;
124	div-q = <4>;
125	div-r = <4>;
126	clocks = <&clk_hse>;
127	status = "okay";
128};
129
130&pll3 {
131	div-m = <5>;
132	mul-n = <192>;
133	div-p = <2>;
134	div-q = <20>;
135	div-r = <99>;
136	clocks = <&clk_hse>;
137	status = "okay";
138};
139
140&rcc {
141	clocks = <&pll>;
142	clock-frequency = <DT_FREQ_M(480)>;
143	d1cpre = <1>;
144	hpre = <2>;
145	d1ppre = <2>;
146	d2ppre1 = <2>;
147	d2ppre2 = <2>;
148	d3ppre = <2>;
149};
150
151&usart3 {
152	pinctrl-0 = <&usart3_tx_pb10 &usart3_rx_pb11>;
153	pinctrl-names = "default";
154	current-speed = <115200>;
155	status = "okay";
156};
157
158&quadspi {
159	pinctrl-names = "default";
160	pinctrl-0 = <&quadspi_clk_pf10 &quadspi_bk1_ncs_pg6
161		     &quadspi_bk1_io0_pd11 &quadspi_bk1_io1_pf9
162		     &quadspi_bk1_io2_pf7 &quadspi_bk1_io3_pf6
163		     &quadspi_bk2_io0_ph2 &quadspi_bk2_io1_ph3
164		     &quadspi_bk2_io2_pg9 &quadspi_bk2_io3_pg14>;
165	dual-flash;
166	status = "okay";
167
168	mt25ql512ab1: qspi-nor-flash-1@90000000 {
169		compatible = "st,stm32-qspi-nor";
170		reg = <0x90000000 DT_SIZE_M(64)>; /* 512 Mbits */
171		qspi-max-frequency = <72000000>;
172		spi-bus-width = <4>;
173		reset-cmd;
174		status = "okay";
175
176		partitions {
177			compatible = "fixed-partitions";
178			#address-cells = <1>;
179			#size-cells = <1>;
180
181			partition@0 {
182				reg = <0x0 DT_SIZE_M(64)>;
183			};
184		};
185	};
186
187	mt25ql512ab2: qspi-nor-flash-2@90000000 {
188		compatible = "st,stm32-qspi-nor";
189		reg = <0x90000000 DT_SIZE_M(64)>; /* 512 Mbits */
190		qspi-max-frequency = <72000000>;
191		status = "okay";
192	};
193};
194
195&fmc {
196	pinctrl-0 = <&fmc_nbl0_pe0 &fmc_nbl1_pe1
197		&fmc_sdclk_pg8 &fmc_sdnwe_ph5 &fmc_sdcke1_ph7
198		&fmc_sdne1_ph6 &fmc_sdnras_pf11 &fmc_sdncas_pg15
199		&fmc_a0_pf0 &fmc_a1_pf1 &fmc_a2_pf2 &fmc_a3_pf3 &fmc_a4_pf4
200		&fmc_a5_pf5 &fmc_a6_pf12 &fmc_a7_pf13 &fmc_a8_pf14
201		&fmc_a9_pf15 &fmc_a10_pg0 &fmc_a11_pg1
202		&fmc_a14_pg4 &fmc_a15_pg5 &fmc_d0_pd14 &fmc_d1_pd15
203		&fmc_d2_pd0 &fmc_d3_pd1 &fmc_d4_pe7 &fmc_d5_pe8 &fmc_d6_pe9
204		&fmc_d7_pe10 &fmc_d8_pe11 &fmc_d9_pe12 &fmc_d10_pe13
205		&fmc_d11_pe14 &fmc_d12_pe15 &fmc_d13_pd8 &fmc_d14_pd9
206		&fmc_d15_pd10>;
207	pinctrl-names = "default";
208	status = "okay";
209
210	sdram {
211		status = "okay";
212		power-up-delay = <100>;
213		num-auto-refresh = <8>;
214		mode-register = <0x230>;
215		refresh-rate = <0x603>;
216		bank@1 {
217			reg = <1>;
218			st,sdram-control = <STM32_FMC_SDRAM_NC_8
219				STM32_FMC_SDRAM_NR_12
220				STM32_FMC_SDRAM_MWID_16
221				STM32_FMC_SDRAM_NB_4
222				STM32_FMC_SDRAM_CAS_3
223				STM32_FMC_SDRAM_SDCLK_PERIOD_2
224				STM32_FMC_SDRAM_RBURST_ENABLE
225				STM32_FMC_SDRAM_RPIPE_1>;
226			st,sdram-timing = <2 7 4 7 2 2 2>;
227		};
228	};
229};
230
231&rtc {
232	clocks = <&rcc STM32_CLOCK_BUS_APB4 0x00010000>,
233		 <&rcc STM32_SRC_LSE RTC_SEL(1)>;
234	status = "okay";
235};
236
237&die_temp {
238	status = "okay";
239};
240
241&adc3 {
242	st,adc-clock-source = "SYNC";
243	st,adc-prescaler = <4>;
244	status = "okay";
245};
246
247/* Arduino Header pins: Tx:D1, Rx:D0 */
248/* LPUART1 can also be used with this pins */
249&usart1 {
250	dma-names = "tx", "rx";
251	pinctrl-0 = <&usart1_tx_pb6 &usart1_rx_pb7>;
252	pinctrl-names = "default";
253	current-speed = <115200>;
254	status = "okay";
255};
256