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 = <&ethernet_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	st,hw-flow-ctrl;
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