0001 /*
0002 * Copyright 2017 - Patrice Chotard <patrice.chotard@st.com>
0003 *
0004 * This file is dual-licensed: you can use it either under the terms
0005 * of the GPL or the X11 license, at your option. Note that this dual
0006 * licensing only applies to this file, and not this project as a
0007 * whole.
0008 *
0009 * a) This file is free software; you can redistribute it and/or
0010 * modify it under the terms of the GNU General Public License as
0011 * published by the Free Software Foundation; either version 2 of the
0012 * License, or (at your option) any later version.
0013 *
0014 * This file is distributed in the hope that it will be useful,
0015 * but WITHOUT ANY WARRANTY; without even the implied warranty of
0016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
0017 * GNU General Public License for more details.
0018 *
0019 * Or, alternatively,
0020 *
0021 * b) Permission is hereby granted, free of charge, to any person
0022 * obtaining a copy of this software and associated documentation
0023 * files (the "Software"), to deal in the Software without
0024 * restriction, including without limitation the rights to use,
0025 * copy, modify, merge, publish, distribute, sublicense, and/or
0026 * sell copies of the Software, and to permit persons to whom the
0027 * Software is furnished to do so, subject to the following
0028 * conditions:
0029 *
0030 * The above copyright notice and this permission notice shall be
0031 * included in all copies or substantial portions of the Software.
0032 *
0033 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
0034 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
0035 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
0036 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
0037 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
0038 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
0039 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0040 * OTHER DEALINGS IN THE SOFTWARE.
0041 */
0042
0043 /dts-v1/;
0044 #include "stm32h743.dtsi"
0045 #include "stm32h7-pinctrl.dtsi"
0046
0047 / {
0048 model = "STMicroelectronics STM32H743i-Discovery board";
0049 compatible = "st,stm32h743i-disco", "st,stm32h743";
0050
0051 chosen {
0052 bootargs = "root=/dev/ram";
0053 stdout-path = "serial0:115200n8";
0054 };
0055
0056 memory@d0000000 {
0057 device_type = "memory";
0058 reg = <0xd0000000 0x2000000>;
0059 };
0060
0061 aliases {
0062 serial0 = &usart2;
0063 };
0064
0065 v3v3: regulator-v3v3 {
0066 compatible = "regulator-fixed";
0067 regulator-name = "v3v3";
0068 regulator-min-microvolt = <3300000>;
0069 regulator-max-microvolt = <3300000>;
0070 regulator-always-on;
0071 };
0072 };
0073
0074 &clk_hse {
0075 clock-frequency = <25000000>;
0076 };
0077
0078 &mac {
0079 status = "disabled";
0080 pinctrl-0 = <ðernet_rmii>;
0081 pinctrl-names = "default";
0082 phy-mode = "rmii";
0083 phy-handle = <&phy0>;
0084
0085 mdio0 {
0086 #address-cells = <1>;
0087 #size-cells = <0>;
0088 compatible = "snps,dwmac-mdio";
0089 phy0: ethernet-phy@0 {
0090 reg = <0>;
0091 };
0092 };
0093 };
0094
0095 &sdmmc1 {
0096 pinctrl-names = "default", "opendrain", "sleep";
0097 pinctrl-0 = <&sdmmc1_b4_pins_a>;
0098 pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
0099 pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>;
0100 broken-cd;
0101 st,neg-edge;
0102 bus-width = <4>;
0103 vmmc-supply = <&v3v3>;
0104 status = "okay";
0105 };
0106
0107 &usart2 {
0108 pinctrl-0 = <&usart2_pins>;
0109 pinctrl-names = "default";
0110 status = "okay";
0111 };
