1/* 2 * Copyright 2017 - Patrice Chotard <patrice.chotard@st.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 43/dts-v1/; 44#include "stm32h743.dtsi" 45#include "stm32h7-pinctrl.dtsi" 46 47/ { 48 model = "STMicroelectronics STM32H743i-Discovery board"; 49 compatible = "st,stm32h743i-disco", "st,stm32h743"; 50 51 chosen { 52 bootargs = "root=/dev/ram"; 53 stdout-path = "serial0:115200n8"; 54 }; 55 56 memory@d0000000 { 57 device_type = "memory"; 58 reg = <0xd0000000 0x2000000>; 59 }; 60 61 aliases { 62 serial0 = &usart2; 63 }; 64 65 v3v3: regulator-v3v3 { 66 compatible = "regulator-fixed"; 67 regulator-name = "v3v3"; 68 regulator-min-microvolt = <3300000>; 69 regulator-max-microvolt = <3300000>; 70 regulator-always-on; 71 }; 72}; 73 74&clk_hse { 75 clock-frequency = <25000000>; 76}; 77 78&mac { 79 status = "disabled"; 80 pinctrl-0 = <ðernet_rmii>; 81 pinctrl-names = "default"; 82 phy-mode = "rmii"; 83 phy-handle = <&phy0>; 84 85 mdio0 { 86 #address-cells = <1>; 87 #size-cells = <0>; 88 compatible = "snps,dwmac-mdio"; 89 phy0: ethernet-phy@0 { 90 reg = <0>; 91 }; 92 }; 93}; 94 95&sdmmc1 { 96 pinctrl-names = "default", "opendrain", "sleep"; 97 pinctrl-0 = <&sdmmc1_b4_pins_a>; 98 pinctrl-1 = <&sdmmc1_b4_od_pins_a>; 99 pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>; 100 broken-cd; 101 st,neg-edge; 102 bus-width = <4>; 103 vmmc-supply = <&v3v3>; 104 status = "okay"; 105}; 106 107&usart2 { 108 pinctrl-0 = <&usart2_pins>; 109 pinctrl-names = "default"; 110 status = "okay"; 111}; 112