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b1a8de7e MK |
1 | /* |
2 | * Copyright 2016 - Michael Kurz <michi.kurz@gmail.com> | |
fd198ee1 | 3 | * Copyright 2016 - Vikas MANOCHA <vikas.manocha@st.com> |
b1a8de7e MK |
4 | * |
5 | * Based on: | |
6 | * stm32f469-disco.dts from Linux | |
7 | * Copyright 2016 - Lee Jones <lee.jones@linaro.org> | |
8 | * | |
9 | * This file is dual-licensed: you can use it either under the terms | |
10 | * of the GPL or the X11 license, at your option. Note that this dual | |
11 | * licensing only applies to this file, and not this project as a | |
12 | * whole. | |
13 | * | |
14 | * a) This file is free software; you can redistribute it and/or | |
15 | * modify it under the terms of the GNU General Public License as | |
16 | * published by the Free Software Foundation; either version 2 of the | |
17 | * License, or (at your option) any later version. | |
18 | * | |
19 | * This file is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | * | |
24 | * Or, alternatively, | |
25 | * | |
26 | * b) Permission is hereby granted, free of charge, to any person | |
27 | * obtaining a copy of this software and associated documentation | |
28 | * files (the "Software"), to deal in the Software without | |
29 | * restriction, including without limitation the rights to use, | |
30 | * copy, modify, merge, publish, distribute, sublicense, and/or | |
31 | * sell copies of the Software, and to permit persons to whom the | |
32 | * Software is furnished to do so, subject to the following | |
33 | * conditions: | |
34 | * | |
35 | * The above copyright notice and this permission notice shall be | |
36 | * included in all copies or substantial portions of the Software. | |
37 | * | |
38 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
39 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES | |
40 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
41 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | |
42 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
43 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
44 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
45 | * OTHER DEALINGS IN THE SOFTWARE. | |
46 | */ | |
47 | ||
48 | /dts-v1/; | |
49 | #include "stm32f746.dtsi" | |
6c9a1003 | 50 | #include <dt-bindings/memory/stm32-sdram.h> |
b1a8de7e MK |
51 | |
52 | / { | |
53 | model = "STMicroelectronics STM32F746-DISCO board"; | |
54 | compatible = "st,stm32f746-disco", "st,stm32f746"; | |
55 | ||
56 | chosen { | |
57 | bootargs = "root=/dev/ram rdinit=/linuxrc"; | |
58 | stdout-path = "serial0:115200n8"; | |
59 | }; | |
60 | ||
61 | memory { | |
62 | reg = <0xC0000000 0x800000>; | |
63 | }; | |
64 | ||
65 | aliases { | |
84bfdc17 | 66 | serial0 = &usart1; |
b1a8de7e | 67 | spi0 = &qspi; |
d33a6a2f VM |
68 | /* Aliases for gpios so as to use sequence */ |
69 | gpio0 = &gpioa; | |
70 | gpio1 = &gpiob; | |
71 | gpio2 = &gpioc; | |
72 | gpio3 = &gpiod; | |
73 | gpio4 = &gpioe; | |
74 | gpio5 = &gpiof; | |
75 | gpio6 = &gpiog; | |
76 | gpio7 = &gpioh; | |
77 | gpio8 = &gpioi; | |
78 | gpio9 = &gpioj; | |
79 | gpio10 = &gpiok; | |
b1a8de7e | 80 | }; |
2f80a9f7 VM |
81 | |
82 | led1 { | |
83 | compatible = "st,led1"; | |
84 | led-gpio = <&gpioi 1 0>; | |
85 | }; | |
86 | ||
87 | button1 { | |
88 | compatible = "st,button1"; | |
89 | button-gpio = <&gpioi 11 0>; | |
90 | }; | |
b1a8de7e MK |
91 | }; |
92 | ||
84bfdc17 VM |
93 | &clk_hse { |
94 | clock-frequency = <25000000>; | |
95 | }; | |
96 | ||
bd4a985f VM |
97 | &pinctrl { |
98 | usart1_pins_a: usart1@0 { | |
99 | pins1 { | |
100 | pinmux = <STM32F746_PA9_FUNC_USART1_TX>; | |
101 | bias-disable; | |
102 | drive-push-pull; | |
103 | slew-rate = <2>; | |
104 | }; | |
105 | pins2 { | |
106 | pinmux = <STM32F746_PB7_FUNC_USART1_RX>; | |
107 | bias-disable; | |
108 | }; | |
109 | }; | |
110 | ||
111 | ethernet_mii: mii@0 { | |
112 | pins { | |
113 | pinmux = <STM32F746_PG13_FUNC_ETH_MII_TXD0_ETH_RMII_TXD0>, | |
114 | <STM32F746_PG14_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1>, | |
115 | <STM32F746_PG11_FUNC_ETH_MII_TX_EN_ETH_RMII_TX_EN>, | |
116 | <STM32F746_PA2_FUNC_ETH_MDIO>, | |
117 | <STM32F746_PC1_FUNC_ETH_MDC>, | |
118 | <STM32F746_PA1_FUNC_ETH_MII_RX_CLK_ETH_RMII_REF_CLK>, | |
119 | <STM32F746_PA7_FUNC_ETH_MII_RX_DV_ETH_RMII_CRS_DV>, | |
120 | <STM32F746_PC4_FUNC_ETH_MII_RXD0_ETH_RMII_RXD0>, | |
121 | <STM32F746_PC5_FUNC_ETH_MII_RXD1_ETH_RMII_RXD1>; | |
122 | slew-rate = <2>; | |
123 | }; | |
124 | }; | |
125 | ||
126 | qspi_pins: qspi@0 { | |
127 | pins { | |
128 | pinmux = <STM32F746_PB2_FUNC_QUADSPI_CLK>, | |
129 | <STM32F746_PB6_FUNC_QUADSPI_BK1_NCS>, | |
130 | <STM32F746_PD11_FUNC_QUADSPI_BK1_IO0>, | |
131 | <STM32F746_PD12_FUNC_QUADSPI_BK1_IO1>, | |
132 | <STM32F746_PD13_FUNC_QUADSPI_BK1_IO3>, | |
133 | <STM32F746_PE2_FUNC_QUADSPI_BK1_IO2>; | |
134 | slew-rate = <2>; | |
135 | }; | |
136 | }; | |
137 | ||
138 | fmc_pins: fmc@0 { | |
139 | pins { | |
140 | pinmux = <STM32F746_PD10_FUNC_FMC_D15>, | |
141 | <STM32F746_PD9_FUNC_FMC_D14>, | |
142 | <STM32F746_PD8_FUNC_FMC_D13>, | |
143 | <STM32F746_PE15_FUNC_FMC_D12>, | |
144 | <STM32F746_PE14_FUNC_FMC_D11>, | |
145 | <STM32F746_PE13_FUNC_FMC_D10>, | |
146 | <STM32F746_PE12_FUNC_FMC_D9>, | |
147 | <STM32F746_PE11_FUNC_FMC_D8>, | |
148 | <STM32F746_PE10_FUNC_FMC_D7>, | |
149 | <STM32F746_PE9_FUNC_FMC_D6>, | |
150 | <STM32F746_PE8_FUNC_FMC_D5>, | |
151 | <STM32F746_PE7_FUNC_FMC_D4>, | |
152 | <STM32F746_PD1_FUNC_FMC_D3>, | |
153 | <STM32F746_PD0_FUNC_FMC_D2>, | |
154 | <STM32F746_PD15_FUNC_FMC_D1>, | |
155 | <STM32F746_PD14_FUNC_FMC_D0>, | |
156 | ||
157 | <STM32F746_PE1_FUNC_FMC_NBL1>, | |
158 | <STM32F746_PE0_FUNC_FMC_NBL0>, | |
159 | ||
160 | <STM32F746_PG5_FUNC_FMC_A15_FMC_BA1>, | |
161 | <STM32F746_PG4_FUNC_FMC_A14_FMC_BA0>, | |
162 | ||
163 | <STM32F746_PG1_FUNC_FMC_A11>, | |
164 | <STM32F746_PG0_FUNC_FMC_A10>, | |
165 | <STM32F746_PF15_FUNC_FMC_A9>, | |
166 | <STM32F746_PF14_FUNC_FMC_A8>, | |
167 | <STM32F746_PF13_FUNC_FMC_A7>, | |
168 | <STM32F746_PF12_FUNC_FMC_A6>, | |
169 | <STM32F746_PF5_FUNC_FMC_A5>, | |
170 | <STM32F746_PF4_FUNC_FMC_A4>, | |
171 | <STM32F746_PF3_FUNC_FMC_A3>, | |
172 | <STM32F746_PF2_FUNC_FMC_A2>, | |
173 | <STM32F746_PF1_FUNC_FMC_A1>, | |
174 | <STM32F746_PF0_FUNC_FMC_A0>, | |
175 | ||
176 | <STM32F746_PH3_FUNC_FMC_SDNE0>, | |
177 | <STM32F746_PH5_FUNC_FMC_SDNWE>, | |
178 | <STM32F746_PF11_FUNC_FMC_SDNRAS>, | |
179 | <STM32F746_PG15_FUNC_FMC_SDNCAS>, | |
180 | <STM32F746_PC3_FUNC_FMC_SDCKE0>, | |
181 | <STM32F746_PG8_FUNC_FMC_SDCLK>; | |
182 | slew-rate = <2>; | |
183 | }; | |
184 | }; | |
185 | }; | |
186 | ||
e34e19fe VM |
187 | &usart1 { |
188 | pinctrl-0 = <&usart1_pins_a>; | |
189 | pinctrl-names = "default"; | |
190 | status = "okay"; | |
191 | }; | |
192 | ||
fd198ee1 VM |
193 | &fmc { |
194 | pinctrl-0 = <&fmc_pins>; | |
195 | pinctrl-names = "default"; | |
196 | status = "okay"; | |
6c9a1003 | 197 | |
bfea69ad | 198 | /* Memory configuration from sdram datasheet MT48LC_4M32_B2B5-6A */ |
6c9a1003 | 199 | bank1: bank@0 { |
bfea69ad VM |
200 | st,sdram-control = /bits/ 8 <NO_COL_8 NO_ROW_12 MWIDTH_16 BANKS_4 |
201 | CAS_3 SDCLK_2 RD_BURST_EN | |
202 | RD_PIPE_DL_0>; | |
203 | st,sdram-timing = /bits/ 8 <TMRD_2 TXSR_6 TRAS_4 TRC_6 TWR_2 | |
204 | TRP_2 TRCD_2>; | |
205 | /* refcount = (64msec/total_row_sdram)*freq - 20 */ | |
206 | st,sdram-refcount = < 1542 >; | |
6c9a1003 | 207 | }; |
fd198ee1 VM |
208 | }; |
209 | ||
b1a8de7e MK |
210 | &mac { |
211 | status = "okay"; | |
c428a958 | 212 | pinctrl-0 = <ðernet_mii>; |
b1a8de7e MK |
213 | phy-mode = "rmii"; |
214 | phy-handle = <&phy0>; | |
215 | ||
216 | mdio0 { | |
217 | #address-cells = <1>; | |
218 | #size-cells = <0>; | |
219 | compatible = "snps,dwmac-mdio"; | |
220 | phy0: ethernet-phy@0 { | |
221 | reg = <0>; | |
222 | }; | |
223 | }; | |
224 | }; | |
225 | ||
226 | &qspi { | |
e245f1a5 | 227 | pinctrl-0 = <&qspi_pins>; |
b1a8de7e MK |
228 | status = "okay"; |
229 | ||
230 | qflash0: n25q128a { | |
231 | #address-cells = <1>; | |
232 | #size-cells = <1>; | |
233 | compatible = "micron,n25q128a13", "spi-flash"; | |
234 | spi-max-frequency = <108000000>; | |
235 | spi-tx-bus-width = <1>; | |
236 | spi-rx-bus-width = <1>; | |
237 | memory-map = <0x90000000 0x1000000>; | |
238 | reg = <0>; | |
239 | }; | |
240 | }; |