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 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.