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}; 228 229 230