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1 | /* |
2 | * Device Tree include file for SolidRun Clearfog 88F6828 based boards | |
3 | * | |
4 | * Copyright (C) 2015 Russell King | |
5 | * | |
6 | * This board is in development; the contents of this file work with | |
7 | * the A1 rev 2.0 of the board, which does not represent final | |
8 | * production board. Things will change, don't expect this file to | |
9 | * remain compatible info the future. | |
10 | * | |
11 | * This file is dual-licensed: you can use it either under the terms | |
12 | * of the GPL or the X11 license, at your option. Note that this dual | |
13 | * licensing only applies to this file, and not this project as a | |
14 | * whole. | |
15 | * | |
16 | * a) This file is free software; you can redistribute it and/or | |
17 | * modify it under the terms of the GNU General Public License | |
18 | * version 2 as published by the Free Software Foundation. | |
19 | * | |
20 | * This file is distributed in the hope that it will be useful | |
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | * GNU General Public License for more details. | |
24 | * | |
25 | * Or, alternatively | |
26 | * | |
27 | * b) Permission is hereby granted, free of charge, to any person | |
28 | * obtaining a copy of this software and associated documentation | |
29 | * files (the "Software"), to deal in the Software without | |
30 | * restriction, including without limitation the rights to use | |
31 | * copy, modify, merge, publish, distribute, sublicense, and/or | |
32 | * sell copies of the Software, and to permit persons to whom the | |
33 | * Software is furnished to do so, subject to the following | |
34 | * conditions: | |
35 | * | |
36 | * The above copyright notice and this permission notice shall be | |
37 | * included in all copies or substantial portions of the Software. | |
38 | * | |
39 | * THE SOFTWARE IS PROVIDED , WITHOUT WARRANTY OF ANY KIND | |
40 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES | |
41 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
42 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | |
43 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY | |
44 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
45 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
46 | * OTHER DEALINGS IN THE SOFTWARE. | |
47 | */ | |
48 | ||
49 | #include "armada-388.dtsi" | |
50 | #include "armada-38x-solidrun-microsom.dtsi" | |
51 | ||
52 | / { | |
53 | aliases { | |
54 | /* So that mvebu u-boot can update the MAC addresses */ | |
55 | ethernet1 = ð0; | |
56 | ethernet2 = ð1; | |
57 | ethernet3 = ð2; | |
58 | }; | |
59 | ||
60 | chosen { | |
61 | stdout-path = "serial0:115200n8"; | |
62 | }; | |
63 | ||
64 | reg_3p3v: regulator-3p3v { | |
65 | compatible = "regulator-fixed"; | |
66 | regulator-name = "3P3V"; | |
67 | regulator-min-microvolt = <3300000>; | |
68 | regulator-max-microvolt = <3300000>; | |
69 | regulator-always-on; | |
70 | }; | |
71 | ||
72 | soc { | |
73 | internal-regs { | |
74 | ethernet@30000 { | |
75 | phy-mode = "sgmii"; | |
76 | buffer-manager = <&bm>; | |
77 | bm,pool-long = <2>; | |
78 | bm,pool-short = <1>; | |
79 | status = "okay"; | |
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80 | }; |
81 | ||
82 | ethernet@34000 { | |
83 | phy-mode = "sgmii"; | |
84 | buffer-manager = <&bm>; | |
85 | bm,pool-long = <3>; | |
86 | bm,pool-short = <1>; | |
87 | status = "okay"; | |
88 | ||
89 | fixed-link { | |
90 | speed = <1000>; | |
91 | full-duplex; | |
92 | }; | |
93 | }; | |
94 | ||
95 | i2c@11000 { | |
96 | /* Is there anything on this? */ | |
97 | clock-frequency = <100000>; | |
98 | pinctrl-0 = <&i2c0_pins>; | |
99 | pinctrl-names = "default"; | |
100 | status = "okay"; | |
101 | ||
102 | /* | |
103 | * PCA9655 GPIO expander, up to 1MHz clock. | |
104 | * 0-CON3 CLKREQ# | |
105 | * 1-CON3 PERST# | |
54f0ec0a | 106 | * 2- |
76138f94 | 107 | * 3-CON3 W_DISABLE |
54f0ec0a | 108 | * 4- |
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109 | * 5-USB3 overcurrent |
110 | * 6-USB3 power | |
54f0ec0a | 111 | * 7- |
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112 | * 8-JP4 P1 |
113 | * 9-JP4 P4 | |
114 | * 10-JP4 P5 | |
115 | * 11-m.2 DEVSLP | |
116 | * 12-SFP_LOS | |
117 | * 13-SFP_TX_FAULT | |
118 | * 14-SFP_TX_DISABLE | |
119 | * 15-SFP_MOD_DEF0 | |
120 | */ | |
121 | expander0: gpio-expander@20 { | |
122 | /* | |
123 | * This is how it should be: | |
124 | * compatible = "onnn,pca9655", | |
125 | * "nxp,pca9555"; | |
126 | * but you can't do this because of | |
127 | * the way I2C works. | |
128 | */ | |
129 | compatible = "nxp,pca9555"; | |
130 | gpio-controller; | |
131 | #gpio-cells = <2>; | |
132 | reg = <0x20>; | |
133 | ||
134 | pcie1_0_clkreq { | |
135 | gpio-hog; | |
136 | gpios = <0 GPIO_ACTIVE_LOW>; | |
137 | input; | |
138 | line-name = "pcie1.0-clkreq"; | |
139 | }; | |
140 | pcie1_0_w_disable { | |
141 | gpio-hog; | |
142 | gpios = <3 GPIO_ACTIVE_LOW>; | |
143 | output-low; | |
144 | line-name = "pcie1.0-w-disable"; | |
145 | }; | |
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146 | usb3_ilimit { |
147 | gpio-hog; | |
148 | gpios = <5 GPIO_ACTIVE_LOW>; | |
149 | input; | |
150 | line-name = "usb3-current-limit"; | |
151 | }; | |
152 | usb3_power { | |
153 | gpio-hog; | |
154 | gpios = <6 GPIO_ACTIVE_HIGH>; | |
155 | output-high; | |
156 | line-name = "usb3-power"; | |
157 | }; | |
158 | m2_devslp { | |
159 | gpio-hog; | |
160 | gpios = <11 GPIO_ACTIVE_HIGH>; | |
161 | output-low; | |
162 | line-name = "m.2 devslp"; | |
163 | }; | |
164 | sfp_los { | |
165 | /* SFP loss of signal */ | |
166 | gpio-hog; | |
167 | gpios = <12 GPIO_ACTIVE_HIGH>; | |
168 | input; | |
169 | line-name = "sfp-los"; | |
170 | }; | |
171 | sfp_tx_fault { | |
172 | /* SFP laser fault */ | |
173 | gpio-hog; | |
174 | gpios = <13 GPIO_ACTIVE_HIGH>; | |
175 | input; | |
176 | line-name = "sfp-tx-fault"; | |
177 | }; | |
178 | sfp_tx_disable { | |
179 | /* SFP transmit disable */ | |
180 | gpio-hog; | |
181 | gpios = <14 GPIO_ACTIVE_HIGH>; | |
182 | output-low; | |
183 | line-name = "sfp-tx-disable"; | |
184 | }; | |
185 | sfp_mod_def0 { | |
186 | /* SFP module present */ | |
187 | gpio-hog; | |
188 | gpios = <15 GPIO_ACTIVE_LOW>; | |
189 | input; | |
190 | line-name = "sfp-mod-def0"; | |
191 | }; | |
192 | }; | |
193 | ||
194 | /* The MCP3021 is 100kHz clock only */ | |
195 | mikrobus_adc: mcp3021@4c { | |
196 | compatible = "microchip,mcp3021"; | |
197 | reg = <0x4c>; | |
198 | }; | |
199 | ||
200 | /* Also something at 0x64 */ | |
201 | }; | |
202 | ||
203 | i2c@11100 { | |
204 | /* | |
205 | * Routed to SFP, mikrobus, and PCIe. | |
206 | * SFP limits this to 100kHz, and requires | |
207 | * an AT24C01A/02/04 with address pins tied | |
208 | * low, which takes addresses 0x50 and 0x51. | |
209 | * Mikrobus doesn't specify beyond an I2C | |
210 | * bus being present. | |
211 | * PCIe uses ARP to assign addresses, or | |
212 | * 0x63-0x64. | |
213 | */ | |
214 | clock-frequency = <100000>; | |
215 | pinctrl-0 = <&clearfog_i2c1_pins>; | |
216 | pinctrl-names = "default"; | |
217 | status = "okay"; | |
218 | }; | |
219 | ||
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220 | sata@a8000 { |
221 | /* pinctrl? */ | |
222 | status = "okay"; | |
223 | }; | |
224 | ||
225 | sata@e0000 { | |
226 | /* pinctrl? */ | |
227 | status = "okay"; | |
228 | }; | |
229 | ||
230 | sdhci@d8000 { | |
231 | bus-width = <4>; | |
232 | cd-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>; | |
233 | no-1-8-v; | |
234 | pinctrl-0 = <µsom_sdhci_pins | |
235 | &clearfog_sdhci_cd_pins>; | |
236 | pinctrl-names = "default"; | |
237 | status = "okay"; | |
238 | vmmc = <®_3p3v>; | |
239 | wp-inverted; | |
240 | }; | |
241 | ||
242 | serial@12100 { | |
243 | /* mikrobus uart */ | |
244 | pinctrl-0 = <&mikro_uart_pins>; | |
245 | pinctrl-names = "default"; | |
246 | status = "okay"; | |
247 | }; | |
248 | ||
249 | usb@58000 { | |
250 | /* CON3, nearest power. */ | |
251 | status = "okay"; | |
252 | }; | |
253 | ||
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254 | usb3@f8000 { |
255 | /* CON7 */ | |
256 | status = "okay"; | |
257 | }; | |
258 | }; | |
259 | ||
260 | pcie-controller { | |
261 | status = "okay"; | |
262 | /* | |
263 | * The two PCIe units are accessible through | |
264 | * the mini-PCIe connectors on the board. | |
265 | */ | |
266 | pcie@2,0 { | |
267 | /* Port 1, Lane 0. CON3, nearest power. */ | |
268 | reset-gpios = <&expander0 1 GPIO_ACTIVE_LOW>; | |
269 | status = "okay"; | |
270 | }; | |
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271 | }; |
272 | }; | |
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273 | }; |
274 | ||
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275 | &pinctrl { |
276 | clearfog_i2c1_pins: i2c1-pins { | |
277 | /* SFP, PCIe, mSATA, mikrobus */ | |
278 | marvell,pins = "mpp26", "mpp27"; | |
279 | marvell,function = "i2c1"; | |
280 | }; | |
281 | clearfog_sdhci_cd_pins: clearfog-sdhci-cd-pins { | |
282 | marvell,pins = "mpp20"; | |
283 | marvell,function = "gpio"; | |
284 | }; | |
285 | mikro_pins: mikro-pins { | |
286 | /* int: mpp22 rst: mpp29 */ | |
287 | marvell,pins = "mpp22", "mpp29"; | |
288 | marvell,function = "gpio"; | |
289 | }; | |
290 | mikro_spi_pins: mikro-spi-pins { | |
291 | marvell,pins = "mpp43"; | |
292 | marvell,function = "spi1"; | |
293 | }; | |
294 | mikro_uart_pins: mikro-uart-pins { | |
295 | marvell,pins = "mpp24", "mpp25"; | |
296 | marvell,function = "ua1"; | |
297 | }; | |
298 | }; | |
299 | ||
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300 | &spi1 { |
301 | /* | |
302 | * Add SPI CS pins for clearfog: | |
303 | * CS0: W25Q32 (not populated on uSOM) | |
869fe59c | 304 | * CS1: PIC microcontroller (Pro models) |
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305 | * CS2: mikrobus |
306 | */ | |
869fe59c | 307 | pinctrl-0 = <&spi1_pins &mikro_spi_pins>; |
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308 | pinctrl-names = "default"; |
309 | status = "okay"; | |
310 | }; |