1 /*
2 * Copyright 2021 - Dillon Min <dillon.minfei@gmail.com>
3 *
4 * This file is dual-licensed: you can use it either under the terms
5 * of the GPL or the X11 license, at your option. Note that this dual
6 * licensing only applies to this file, and not this project as a
7 * whole.
8 *
9 * a) This file is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of the
12 * License, or (at your option) any later version.
13 *
14 * This file is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * Or, alternatively,
20 *
21 * b) Permission is hereby granted, free of charge, to any person
22 * obtaining a copy of this software and associated documentation
23 * files (the "Software"), to deal in the Software without
24 * restriction, including without limitation the rights to use,
25 * copy, modify, merge, publish, distribute, sublicense, and/or
26 * sell copies of the Software, and to permit persons to whom the
27 * Software is furnished to do so, subject to the following
28 * conditions:
29 *
30 * The above copyright notice and this permission notice shall be
31 * included in all copies or substantial portions of the Software.
32 *
33 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
34 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
35 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
36 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
37 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
38 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
39 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
40 * OTHER DEALINGS IN THE SOFTWARE.
41 *
42 * For art-pi board resources, you can refer to link:
43 * https://art-pi.gitee.io/website/
44 */
45
46 /dts-v1/;
47 #include "stm32h750.dtsi"
48 #include "stm32h7-pinctrl.dtsi"
49 #include <dt-bindings/interrupt-controller/irq.h>
50 #include <dt-bindings/gpio/gpio.h>
51
52 / {
53 model = "RT-Thread STM32H750i-ART-PI board";
54 compatible = "st,stm32h750i-art-pi", "st,stm32h750";
55
56 chosen {
57 bootargs = "root=/dev/ram";
58 stdout-path = "serial0:2000000n8";
59 };
60
61 memory@c0000000 {
62 device_type = "memory";
63 reg = <0xc0000000 0x2000000>;
64 };
65
66 reserved-memory {
67 #address-cells = <1>;
68 #size-cells = <1>;
69 ranges;
70
71 linux,cma {
72 compatible = "shared-dma-pool";
73 no-map;
74 size = <0x100000>;
75 linux,dma-default;
76 };
77 };
78
79 aliases {
80 serial0 = &uart4;
81 serial1 = &usart3;
82 };
83
84 leds {
85 compatible = "gpio-leds";
86 led-red {
87 gpios = <&gpioi 8 0>;
88 };
89 led-green {
90 gpios = <&gpioc 15 0>;
91 linux,default-trigger = "heartbeat";
92 };
93 };
94
95 v3v3: regulator-v3v3 {
96 compatible = "regulator-fixed";
97 regulator-name = "v3v3";
98 regulator-min-microvolt = <3300000>;
99 regulator-max-microvolt = <3300000>;
100 regulator-always-on;
101 };
102
103 wlan_pwr: regulator-wlan {
104 compatible = "regulator-fixed";
105
106 regulator-name = "wl-reg";
107 regulator-min-microvolt = <3300000>;
108 regulator-max-microvolt = <3300000>;
109
110 gpios = <&gpioc 13 GPIO_ACTIVE_HIGH>;
111 enable-active-high;
112 };
113 };
114
115 &clk_hse {
116 clock-frequency = <25000000>;
117 };
118
119 &dma1 {
120 status = "okay";
121 };
122
123 &dma2 {
124 status = "okay";
125 };
126
127 &mac {
128 status = "disabled";
129 pinctrl-0 = <ðernet_rmii>;
130 pinctrl-names = "default";
131 phy-mode = "rmii";
132 phy-handle = <&phy0>;
133
134 mdio0 {
135 #address-cells = <1>;
136 #size-cells = <0>;
137 compatible = "snps,dwmac-mdio";
138 phy0: ethernet-phy@0 {
139 reg = <0>;
140 };
141 };
142 };
143
144 &sdmmc1 {
145 pinctrl-names = "default", "opendrain", "sleep";
146 pinctrl-0 = <&sdmmc1_b4_pins_a>;
147 pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
148 pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>;
149 broken-cd;
150 st,neg-edge;
151 bus-width = <4>;
152 vmmc-supply = <&v3v3>;
153 status = "okay";
154 };
155
156 &sdmmc2 {
157 pinctrl-names = "default", "opendrain", "sleep";
158 pinctrl-0 = <&sdmmc2_b4_pins_a>;
159 pinctrl-1 = <&sdmmc2_b4_od_pins_a>;
160 pinctrl-2 = <&sdmmc2_b4_sleep_pins_a>;
161 broken-cd;
162 non-removable;
163 st,neg-edge;
164 bus-width = <4>;
165 vmmc-supply = <&wlan_pwr>;
166 status = "okay";
167
168 #address-cells = <1>;
169 #size-cells = <0>;
170 brcmf: bcrmf@1 {
171 reg = <1>;
172 compatible = "brcm,bcm4329-fmac";
173 };
174 };
175
176 &spi1 {
177 status = "okay";
178 pinctrl-0 = <&spi1_pins>;
179 pinctrl-names = "default";
180 cs-gpios = <&gpioa 4 GPIO_ACTIVE_LOW>;
181 dmas = <&dmamux1 37 0x400 0x05>,
182 <&dmamux1 38 0x400 0x05>;
183 dma-names = "rx", "tx";
184
185 flash@0 {
186 #address-cells = <1>;
187 #size-cells = <1>;
188 compatible = "winbond,w25q128", "jedec,spi-nor";
189 reg = <0>;
190 spi-max-frequency = <80000000>;
191
192 partition@0 {
193 label = "root filesystem";
194 reg = <0 0x1000000>;
195 };
196 };
197 };
198
199 &usart2 {
200 pinctrl-0 = <&usart2_pins>;
201 pinctrl-names = "default";
202 status = "disabled";
203 };
204
205 &usart3 {
206 pinctrl-names = "default";
207 pinctrl-0 = <&usart3_pins>;
208 dmas = <&dmamux1 45 0x400 0x05>,
209 <&dmamux1 46 0x400 0x05>;
210 dma-names = "rx", "tx";
211 uart-has-rtscts;
212 status = "okay";
213
214 bluetooth {
215 compatible = "brcm,bcm43438-bt";
216 host-wakeup-gpios = <&gpioc 0 GPIO_ACTIVE_HIGH>;
217 device-wakeup-gpios = <&gpioi 10 GPIO_ACTIVE_HIGH>;
218 shutdown-gpios = <&gpioi 11 GPIO_ACTIVE_HIGH>;
219 max-speed = <115200>;
220 };
221 };
222
223 &uart4 {
224 pinctrl-0 = <&uart4_pins>;
225 pinctrl-names = "default";
226 status = "okay";
227 };
228
229
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