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5fbb2b25 PC |
1 | /* |
2 | * Copyright 2017 - Alexandre Torgue <[email protected]> | |
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 "stm32h743-pinctrl.dtsi" | |
a1e384b4 | 46 | #include <dt-bindings/memory/stm32-sdram.h> |
5fbb2b25 PC |
47 | |
48 | / { | |
49 | model = "STMicroelectronics STM32H743i-EVAL board"; | |
50 | compatible = "st,stm32h743i-eval", "st,stm32h743"; | |
51 | ||
52 | chosen { | |
53 | bootargs = "root=/dev/ram"; | |
54 | stdout-path = "serial0:115200n8"; | |
55 | }; | |
56 | ||
57 | memory { | |
58 | reg = <0xd0000000 0x2000000>; | |
59 | }; | |
60 | ||
61 | aliases { | |
62 | serial0 = &usart1; | |
a1e384b4 PC |
63 | gpio0 = &gpioa; |
64 | gpio1 = &gpiob; | |
65 | gpio2 = &gpioc; | |
66 | gpio3 = &gpiod; | |
67 | gpio4 = &gpioe; | |
68 | gpio5 = &gpiof; | |
69 | gpio6 = &gpiog; | |
70 | gpio7 = &gpioh; | |
71 | gpio8 = &gpioi; | |
72 | gpio9 = &gpioj; | |
73 | gpio10 = &gpiok; | |
5fbb2b25 PC |
74 | }; |
75 | }; | |
76 | ||
5fbb2b25 PC |
77 | &usart1 { |
78 | pinctrl-0 = <&usart1_pins>; | |
79 | pinctrl-names = "default"; | |
80 | status = "okay"; | |
81 | }; | |
82 | ||
a1e384b4 PC |
83 | &fmc { |
84 | pinctrl-0 = <&fmc_pins>; | |
85 | pinctrl-names = "default"; | |
86 | status = "okay"; | |
87 | ||
88 | /* | |
89 | * Memory configuration from sdram datasheet IS42S32800G-6BLI | |
90 | * firsct bank is bank@0 | |
91 | * second bank is bank@1 | |
92 | */ | |
93 | bank2: bank@1 { | |
94 | st,sdram-control = /bits/ 8 <NO_COL_9 NO_ROW_12 MWIDTH_32 BANKS_4 | |
95 | CAS_2 SDCLK_3 RD_BURST_EN RD_PIPE_DL_0>; | |
96 | st,sdram-timing = /bits/ 8 <TMRD_1 TXSR_1 TRAS_1 TRC_6 TRP_2 | |
97 | TWR_1 TRCD_1>; | |
98 | st,sdram-refcount = <1539>; | |
99 | }; | |
100 | }; | |
d8f69e56 PC |
101 | |
102 | &sdmmc1 { | |
103 | status = "okay"; | |
104 | pinctrl-0 = <&sdmmc1_pins>, | |
105 | <&pinctrl_sdmmc1_level_shifter>; | |
106 | pinctrl-names = "default"; | |
107 | bus-width = <4>; | |
108 | st,dirpol; | |
109 | }; |