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	= <&ethernet_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