]>
Commit | Line | Data |
---|---|---|
8fc5ffa0 AV |
1 | if ARCH_AT91 |
2 | ||
2ef9f59a JCPV |
3 | config HAVE_AT91_DATAFLASH_CARD |
4 | bool | |
5 | ||
6 | config HAVE_NAND_ATMEL_BUSWIDTH_16 | |
7 | bool | |
8 | ||
9 | config HAVE_AT91_USART3 | |
10 | bool | |
11 | ||
12 | config HAVE_AT91_USART4 | |
13 | bool | |
14 | ||
15 | config HAVE_AT91_USART5 | |
16 | bool | |
17 | ||
8fc5ffa0 AV |
18 | menu "Atmel AT91 System-on-Chip" |
19 | ||
05043d08 AV |
20 | choice |
21 | prompt "Atmel AT91 Processor" | |
8fc5ffa0 AV |
22 | |
23 | config ARCH_AT91RM9200 | |
24 | bool "AT91RM9200" | |
c750815e | 25 | select CPU_ARM920T |
5e802dfa | 26 | select GENERIC_CLOCKEVENTS |
2ef9f59a | 27 | select HAVE_AT91_USART3 |
73a59c1c | 28 | |
8fc5ffa0 | 29 | config ARCH_AT91SAM9260 |
f7eee89b | 30 | bool "AT91SAM9260 or AT91SAM9XE" |
c750815e | 31 | select CPU_ARM926T |
ad48ce74 | 32 | select GENERIC_CLOCKEVENTS |
2ef9f59a JCPV |
33 | select HAVE_AT91_USART3 |
34 | select HAVE_AT91_USART4 | |
35 | select HAVE_AT91_USART5 | |
8fc5ffa0 AV |
36 | |
37 | config ARCH_AT91SAM9261 | |
38 | bool "AT91SAM9261" | |
c750815e | 39 | select CPU_ARM926T |
ad48ce74 | 40 | select GENERIC_CLOCKEVENTS |
0912e535 | 41 | select HAVE_FB_ATMEL |
8fc5ffa0 | 42 | |
b319ff80 NF |
43 | config ARCH_AT91SAM9G10 |
44 | bool "AT91SAM9G10" | |
45 | select CPU_ARM926T | |
b319ff80 | 46 | select GENERIC_CLOCKEVENTS |
0912e535 | 47 | select HAVE_FB_ATMEL |
b319ff80 | 48 | |
b2c65616 AV |
49 | config ARCH_AT91SAM9263 |
50 | bool "AT91SAM9263" | |
c750815e | 51 | select CPU_ARM926T |
ad48ce74 | 52 | select GENERIC_CLOCKEVENTS |
0912e535 | 53 | select HAVE_FB_ATMEL |
b2c65616 | 54 | |
877d7720 AV |
55 | config ARCH_AT91SAM9RL |
56 | bool "AT91SAM9RL" | |
c750815e | 57 | select CPU_ARM926T |
ad48ce74 | 58 | select GENERIC_CLOCKEVENTS |
2ef9f59a | 59 | select HAVE_AT91_USART3 |
0912e535 | 60 | select HAVE_FB_ATMEL |
877d7720 | 61 | |
61352667 | 62 | config ARCH_AT91SAM9G20 |
63 | bool "AT91SAM9G20" | |
c750815e | 64 | select CPU_ARM926T |
61352667 | 65 | select GENERIC_CLOCKEVENTS |
2ef9f59a JCPV |
66 | select HAVE_AT91_USART3 |
67 | select HAVE_AT91_USART4 | |
68 | select HAVE_AT91_USART5 | |
61352667 | 69 | |
789b23bc NF |
70 | config ARCH_AT91SAM9G45 |
71 | bool "AT91SAM9G45" | |
72 | select CPU_ARM926T | |
789b23bc | 73 | select GENERIC_CLOCKEVENTS |
2ef9f59a | 74 | select HAVE_AT91_USART3 |
0912e535 | 75 | select HAVE_FB_ATMEL |
789b23bc | 76 | |
2b3b3516 AV |
77 | config ARCH_AT91CAP9 |
78 | bool "AT91CAP9" | |
c750815e | 79 | select CPU_ARM926T |
ad48ce74 | 80 | select GENERIC_CLOCKEVENTS |
0912e535 | 81 | select HAVE_FB_ATMEL |
2b3b3516 | 82 | |
5e38efae AV |
83 | config ARCH_AT572D940HF |
84 | bool "AT572D940HF" | |
85 | select CPU_ARM926T | |
5e38efae AV |
86 | select GENERIC_CLOCKEVENTS |
87 | ||
9f1ccefe GU |
88 | config ARCH_AT91X40 |
89 | bool "AT91x40" | |
5cfc8ee0 | 90 | select ARCH_USES_GETTIMEOFFSET |
9f1ccefe | 91 | |
05043d08 AV |
92 | endchoice |
93 | ||
9f1ccefe GU |
94 | config AT91_PMC_UNIT |
95 | bool | |
96 | default !ARCH_AT91X40 | |
97 | ||
8fc5ffa0 AV |
98 | # ---------------------------------------------------------- |
99 | ||
100 | if ARCH_AT91RM9200 | |
73a59c1c SP |
101 | |
102 | comment "AT91RM9200 Board Type" | |
103 | ||
b184a4c9 LB |
104 | config MACH_ONEARM |
105 | bool "Ajeco 1ARM Single Board Computer" | |
b184a4c9 | 106 | help |
8fc5ffa0 AV |
107 | Select this if you are using Ajeco's 1ARM Single Board Computer. |
108 | <http://www.ajeco.fi/products.htm> | |
b184a4c9 | 109 | |
73a59c1c SP |
110 | config ARCH_AT91RM9200DK |
111 | bool "Atmel AT91RM9200-DK Development board" | |
2ef9f59a | 112 | select HAVE_AT91_DATAFLASH_CARD |
73a59c1c | 113 | help |
8fc5ffa0 AV |
114 | Select this if you are using Atmel's AT91RM9200-DK Development board. |
115 | (Discontinued) | |
116 | ||
73a59c1c SP |
117 | config MACH_AT91RM9200EK |
118 | bool "Atmel AT91RM9200-EK Evaluation Kit" | |
2ef9f59a | 119 | select HAVE_AT91_DATAFLASH_CARD |
73a59c1c | 120 | help |
8fc5ffa0 AV |
121 | Select this if you are using Atmel's AT91RM9200-EK Evaluation Kit. |
122 | <http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3507> | |
73a59c1c SP |
123 | |
124 | config MACH_CSB337 | |
8fc5ffa0 | 125 | bool "Cogent CSB337" |
73a59c1c | 126 | help |
8fc5ffa0 AV |
127 | Select this if you are using Cogent's CSB337 board. |
128 | <http://www.cogcomp.com/csb_csb337.htm> | |
73a59c1c SP |
129 | |
130 | config MACH_CSB637 | |
8fc5ffa0 | 131 | bool "Cogent CSB637" |
73a59c1c | 132 | help |
8fc5ffa0 AV |
133 | Select this if you are using Cogent's CSB637 board. |
134 | <http://www.cogcomp.com/csb_csb637.htm> | |
73a59c1c SP |
135 | |
136 | config MACH_CARMEVA | |
8fc5ffa0 | 137 | bool "Conitec ARM&EVA" |
73a59c1c | 138 | help |
8fc5ffa0 AV |
139 | Select this if you are using Conitec's AT91RM9200-MCU-Module. |
140 | <http://www.conitec.net/english/linuxboard.htm> | |
73a59c1c | 141 | |
8fc5ffa0 AV |
142 | config MACH_ATEB9200 |
143 | bool "Embest ATEB9200" | |
73a59c1c | 144 | help |
8fc5ffa0 AV |
145 | Select this if you are using Embest's ATEB9200 board. |
146 | <http://www.embedinfo.com/english/product/ATEB9200.asp> | |
73a59c1c | 147 | |
8fc5ffa0 AV |
148 | config MACH_KB9200 |
149 | bool "KwikByte KB920x" | |
6902f523 | 150 | help |
8fc5ffa0 AV |
151 | Select this if you are using KwikByte's KB920x board. |
152 | <http://kwikbyte.com/KB9202_description_new.htm> | |
6902f523 | 153 | |
5d01f133 SR |
154 | config MACH_PICOTUX2XX |
155 | bool "picotux 200" | |
5d01f133 SR |
156 | help |
157 | Select this if you are using a picotux 200. | |
158 | <http://www.picotux.com/> | |
159 | ||
6902f523 AV |
160 | config MACH_KAFA |
161 | bool "Sperry-Sun KAFA board" | |
6902f523 | 162 | help |
8fc5ffa0 AV |
163 | Select this if you are using Sperry-Sun's KAFA board. |
164 | ||
2f036ac6 AV |
165 | config MACH_ECBAT91 |
166 | bool "emQbit ECB_AT91 SBC" | |
2ef9f59a | 167 | select HAVE_AT91_DATAFLASH_CARD |
2f036ac6 AV |
168 | help |
169 | Select this if you are using emQbit's ECB_AT91 board. | |
170 | <http://wiki.emqbit.com/free-ecb-at91> | |
171 | ||
e3ba22db AV |
172 | config MACH_YL9200 |
173 | bool "ucDragon YL-9200" | |
e3ba22db AV |
174 | help |
175 | Select this if you are using the ucDragon YL-9200 board. | |
176 | ||
10233a93 EB |
177 | config MACH_CPUAT91 |
178 | bool "Eukrea CPUAT91" | |
10233a93 EB |
179 | help |
180 | Select this if you are using the Eukrea Electromatique's | |
181 | CPUAT91 board <http://www.eukrea.com/>. | |
182 | ||
01c62c9b UKK |
183 | config MACH_ECO920 |
184 | bool "eco920" | |
185 | help | |
186 | Select this if you are using the eco920 board | |
187 | ||
8fc5ffa0 AV |
188 | endif |
189 | ||
190 | # ---------------------------------------------------------- | |
191 | ||
192 | if ARCH_AT91SAM9260 | |
193 | ||
f7eee89b AV |
194 | comment "AT91SAM9260 Variants" |
195 | ||
196 | config ARCH_AT91SAM9260_SAM9XE | |
197 | bool "AT91SAM9XE" | |
f7eee89b AV |
198 | help |
199 | Select this if you are using Atmel's AT91SAM9XE System-on-Chip. | |
a982ac06 | 200 | They are basically AT91SAM9260s with various sizes of embedded Flash. |
f7eee89b AV |
201 | |
202 | comment "AT91SAM9260 / AT91SAM9XE Board Type" | |
8fc5ffa0 | 203 | |
58a0cd78 | 204 | config MACH_AT91SAM9260EK |
f7eee89b | 205 | bool "Atmel AT91SAM9260-EK / AT91SAM9XE Evaluation Kit" |
2ef9f59a JCPV |
206 | select HAVE_AT91_DATAFLASH_CARD |
207 | select HAVE_NAND_ATMEL_BUSWIDTH_16 | |
58a0cd78 | 208 | help |
f7eee89b | 209 | Select this if you are using Atmel's AT91SAM9260-EK or AT91SAM9XE Evaluation Kit |
58a0cd78 AV |
210 | <http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3933> |
211 | ||
35131fb6 AV |
212 | config MACH_CAM60 |
213 | bool "KwikByte KB9260 (CAM60) board" | |
35131fb6 AV |
214 | help |
215 | Select this if you are using KwikByte's KB9260 (CAM60) board based on the Atmel AT91SAM9260. | |
216 | <http://www.kwikbyte.com/KB9260.html> | |
217 | ||
66dbfc6c AV |
218 | config MACH_SAM9_L9260 |
219 | bool "Olimex SAM9-L9260 board" | |
2ef9f59a | 220 | select HAVE_AT91_DATAFLASH_CARD |
66dbfc6c AV |
221 | help |
222 | Select this if you are using Olimex's SAM9-L9260 board based on the Atmel AT91SAM9260. | |
223 | <http://www.olimex.com/dev/sam9-L9260.html> | |
224 | ||
9c784f95 SL |
225 | config MACH_AFEB9260 |
226 | bool "Custom afeb9260 board v1" | |
9c784f95 SL |
227 | help |
228 | Select this if you are using custom afeb9260 board based on | |
229 | open hardware design. Select this for revision 1 of the board. | |
230 | <svn://194.85.238.22/home/users/george/svn/arm9eb> | |
231 | <http://groups.google.com/group/arm9fpga-evolution-board> | |
232 | ||
ca0a789a AV |
233 | config MACH_USB_A9260 |
234 | bool "CALAO USB-A9260" | |
ca0a789a AV |
235 | help |
236 | Select this if you are using a Calao Systems USB-A9260. | |
237 | <http://www.calao-systems.com> | |
238 | ||
239 | config MACH_QIL_A9260 | |
240 | bool "CALAO QIL-A9260 board" | |
ca0a789a AV |
241 | help |
242 | Select this if you are using a Calao Systems QIL-A9260 Board. | |
243 | <http://www.calao-systems.com> | |
244 | ||
41a353d1 EB |
245 | config MACH_CPU9260 |
246 | bool "Eukrea CPU9260 board" | |
41a353d1 EB |
247 | help |
248 | Select this if you are using a Eukrea Electromatique's | |
249 | CPU9260 Board <http://www.eukrea.com/> | |
250 | ||
8fc5ffa0 AV |
251 | endif |
252 | ||
253 | # ---------------------------------------------------------- | |
254 | ||
255 | if ARCH_AT91SAM9261 | |
256 | ||
257 | comment "AT91SAM9261 Board Type" | |
258 | ||
58a0cd78 AV |
259 | config MACH_AT91SAM9261EK |
260 | bool "Atmel AT91SAM9261-EK Evaluation Kit" | |
2ef9f59a JCPV |
261 | select HAVE_AT91_DATAFLASH_CARD |
262 | select HAVE_NAND_ATMEL_BUSWIDTH_16 | |
58a0cd78 AV |
263 | help |
264 | Select this if you are using Atmel's AT91SAM9261-EK Evaluation Kit. | |
265 | <http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3820> | |
266 | ||
8fc5ffa0 AV |
267 | endif |
268 | ||
58a0cd78 AV |
269 | # ---------------------------------------------------------- |
270 | ||
b319ff80 NF |
271 | if ARCH_AT91SAM9G10 |
272 | ||
273 | comment "AT91SAM9G10 Board Type" | |
274 | ||
275 | config MACH_AT91SAM9G10EK | |
276 | bool "Atmel AT91SAM9G10-EK Evaluation Kit" | |
2ef9f59a JCPV |
277 | select HAVE_AT91_DATAFLASH_CARD |
278 | select HAVE_NAND_ATMEL_BUSWIDTH_16 | |
b319ff80 NF |
279 | help |
280 | Select this if you are using Atmel's AT91SAM9G10-EK Evaluation Kit. | |
281 | <http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4588> | |
282 | ||
283 | endif | |
284 | ||
285 | # ---------------------------------------------------------- | |
286 | ||
e6d92e63 AV |
287 | if ARCH_AT91SAM9263 |
288 | ||
289 | comment "AT91SAM9263 Board Type" | |
290 | ||
291 | config MACH_AT91SAM9263EK | |
292 | bool "Atmel AT91SAM9263-EK Evaluation Kit" | |
2ef9f59a JCPV |
293 | select HAVE_AT91_DATAFLASH_CARD |
294 | select HAVE_NAND_ATMEL_BUSWIDTH_16 | |
e6d92e63 AV |
295 | help |
296 | Select this if you are using Atmel's AT91SAM9263-EK Evaluation Kit. | |
297 | <http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4057> | |
298 | ||
ca0a789a AV |
299 | config MACH_USB_A9263 |
300 | bool "CALAO USB-A9263" | |
ca0a789a AV |
301 | help |
302 | Select this if you are using a Calao Systems USB-A9263. | |
303 | <http://www.calao-systems.com> | |
304 | ||
ffc63b7d AV |
305 | config MACH_NEOCORE926 |
306 | bool "Adeneo NEOCORE926" | |
2ef9f59a | 307 | select HAVE_AT91_DATAFLASH_CARD |
ffc63b7d AV |
308 | help |
309 | Select this if you are using the Adeneo Neocore 926 board. | |
310 | ||
e6d92e63 AV |
311 | endif |
312 | ||
313 | # ---------------------------------------------------------- | |
314 | ||
c42dcb3d AV |
315 | if ARCH_AT91SAM9RL |
316 | ||
317 | comment "AT91SAM9RL Board Type" | |
318 | ||
319 | config MACH_AT91SAM9RLEK | |
320 | bool "Atmel AT91SAM9RL-EK Evaluation Kit" | |
c42dcb3d AV |
321 | help |
322 | Select this if you are using Atmel's AT91SAM9RL-EK Evaluation Kit. | |
323 | ||
324 | endif | |
325 | ||
326 | # ---------------------------------------------------------- | |
327 | ||
61352667 | 328 | if ARCH_AT91SAM9G20 |
329 | ||
330 | comment "AT91SAM9G20 Board Type" | |
331 | ||
332 | config MACH_AT91SAM9G20EK | |
333 | bool "Atmel AT91SAM9G20-EK Evaluation Kit" | |
2ef9f59a JCPV |
334 | select HAVE_AT91_DATAFLASH_CARD |
335 | select HAVE_NAND_ATMEL_BUSWIDTH_16 | |
61352667 | 336 | help |
0f74296a NF |
337 | Select this if you are using Atmel's AT91SAM9G20-EK Evaluation Kit |
338 | that embeds only one SD/MMC slot. | |
339 | ||
340 | config MACH_AT91SAM9G20EK_2MMC | |
341 | bool "Atmel AT91SAM9G20-EK Evaluation Kit with 2 SD/MMC Slots" | |
2ef9f59a | 342 | select HAVE_NAND_ATMEL_BUSWIDTH_16 |
0f74296a NF |
343 | help |
344 | Select this if you are using an Atmel AT91SAM9G20-EK Evaluation Kit | |
345 | with 2 SD/MMC Slots. This is the case for AT91SAM9G20-EK rev. C and | |
346 | onwards. | |
61352667 | 347 | |
41a353d1 EB |
348 | config MACH_CPU9G20 |
349 | bool "Eukrea CPU9G20 board" | |
41a353d1 EB |
350 | help |
351 | Select this if you are using a Eukrea Electromatique's | |
352 | CPU9G20 Board <http://www.eukrea.com/> | |
353 | ||
9b404b7c CG |
354 | config MACH_PORTUXG20 |
355 | bool "taskit PortuxG20" | |
356 | help | |
357 | Select this if you are using taskit's PortuxG20. | |
358 | <http://www.taskit.de/en/> | |
359 | ||
360 | config MACH_STAMP9G20 | |
361 | bool "taskit Stamp9G20 CPU module" | |
362 | help | |
363 | Select this if you are using taskit's Stamp9G20 CPU module on its | |
364 | evaluation board. | |
365 | <http://www.taskit.de/en/> | |
366 | ||
61352667 | 367 | endif |
368 | ||
064baaca RM |
369 | if (ARCH_AT91SAM9260 || ARCH_AT91SAM9G20) |
370 | comment "AT91SAM9260/AT91SAM9G20 boards" | |
371 | ||
372 | config MACH_SNAPPER_9260 | |
373 | bool "Bluewater Systems Snapper 9260/9G20 module" | |
374 | help | |
375 | Select this if you are using the Bluewater Systems Snapper 9260 or | |
376 | Snapper 9G20 modules. | |
377 | <http://www.bluewatersys.com/> | |
378 | endif | |
379 | ||
61352667 | 380 | # ---------------------------------------------------------- |
381 | ||
789b23bc NF |
382 | if ARCH_AT91SAM9G45 |
383 | ||
384 | comment "AT91SAM9G45 Board Type" | |
385 | ||
386 | config MACH_AT91SAM9G45EKES | |
387 | bool "Atmel AT91SAM9G45-EKES Evaluation Kit" | |
2ef9f59a | 388 | select HAVE_NAND_ATMEL_BUSWIDTH_16 |
789b23bc NF |
389 | help |
390 | Select this if you are using Atmel's AT91SAM9G45-EKES Evaluation Kit. | |
391 | "ES" at the end of the name means that this board is an | |
392 | Engineering Sample. | |
393 | ||
394 | endif | |
395 | ||
396 | # ---------------------------------------------------------- | |
397 | ||
86640cae AV |
398 | if ARCH_AT91CAP9 |
399 | ||
400 | comment "AT91CAP9 Board Type" | |
401 | ||
402 | config MACH_AT91CAP9ADK | |
403 | bool "Atmel AT91CAP9A-DK Evaluation Kit" | |
2ef9f59a JCPV |
404 | select HAVE_AT91_DATAFLASH_CARD |
405 | select HAVE_NAND_ATMEL_BUSWIDTH_16 | |
86640cae AV |
406 | help |
407 | Select this if you are using Atmel's AT91CAP9A-DK Evaluation Kit. | |
408 | <http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4138> | |
409 | ||
410 | endif | |
411 | ||
412 | # ---------------------------------------------------------- | |
413 | ||
c9a8fdd8 AV |
414 | if ARCH_AT572D940HF |
415 | ||
416 | comment "AT572D940HF Board Type" | |
417 | ||
418 | config MACH_AT572D940HFEB | |
419 | bool "AT572D940HF-EK" | |
420 | depends on ARCH_AT572D940HF | |
421 | select HAVE_AT91_DATAFLASH_CARD | |
422 | select HAVE_NAND_ATMEL_BUSWIDTH_16 | |
423 | help | |
424 | Select this if you are using Atmel's AT572D940HF-EK evaluation kit. | |
425 | <http://www.atmel.com/products/diopsis/default.asp> | |
426 | ||
427 | endif | |
428 | ||
429 | # ---------------------------------------------------------- | |
430 | ||
9f1ccefe GU |
431 | if ARCH_AT91X40 |
432 | ||
433 | comment "AT91X40 Board Type" | |
434 | ||
435 | config MACH_AT91EB01 | |
436 | bool "Atmel AT91EB01 Evaluation Kit" | |
437 | help | |
438 | Select this if you are using Atmel's AT91EB01 Evaluation Kit. | |
439 | It is also a popular target for simulators such as GDB's | |
440 | ARM simulator (commonly known as the ARMulator) and the | |
441 | Skyeye simulator. | |
442 | ||
443 | endif | |
444 | ||
445 | # ---------------------------------------------------------- | |
446 | ||
58a0cd78 AV |
447 | comment "AT91 Board Options" |
448 | ||
449 | config MTD_AT91_DATAFLASH_CARD | |
450 | bool "Enable DataFlash Card support" | |
2ef9f59a | 451 | depends on HAVE_AT91_DATAFLASH_CARD |
58a0cd78 AV |
452 | help |
453 | Enable support for the DataFlash card. | |
454 | ||
f6ed6f78 | 455 | config MTD_NAND_ATMEL_BUSWIDTH_16 |
58a0cd78 | 456 | bool "Enable 16-bit data bus interface to NAND flash" |
2ef9f59a | 457 | depends on HAVE_NAND_ATMEL_BUSWIDTH_16 |
58a0cd78 AV |
458 | help |
459 | On AT91SAM926x boards both types of NAND flash can be present | |
460 | (8 and 16 bit data bus width). | |
6902f523 | 461 | |
8fc5ffa0 | 462 | # ---------------------------------------------------------- |
73a59c1c | 463 | |
8fc5ffa0 | 464 | comment "AT91 Feature Selections" |
73a59c1c SP |
465 | |
466 | config AT91_PROGRAMMABLE_CLOCKS | |
467 | bool "Programmable Clocks" | |
468 | help | |
469 | Select this if you need to program one or more of the PCK0..PCK3 | |
470 | programmable clock outputs. | |
471 | ||
eaad2db0 AV |
472 | config AT91_SLOW_CLOCK |
473 | bool "Suspend-to-RAM disables main oscillator" | |
474 | depends on SUSPEND | |
475 | help | |
476 | Select this if you want Suspend-to-RAM to save the most power | |
477 | possible (without powering off the CPU) by disabling the PLLs | |
478 | and main oscillator so that only the 32 KiHz clock is available. | |
479 | ||
480 | When only that slow-clock is available, some peripherals lose | |
481 | functionality. Many can't issue wakeup events unless faster | |
482 | clocks are available. Some lose their operating state and | |
483 | need to be completely re-initialized. | |
484 | ||
5248c657 DB |
485 | config AT91_TIMER_HZ |
486 | int "Kernel HZ (jiffies per second)" | |
487 | range 32 1024 | |
488 | depends on ARCH_AT91 | |
489 | default "128" if ARCH_AT91RM9200 | |
490 | default "100" | |
491 | help | |
492 | On AT91rm9200 chips where you're using a system clock derived | |
493 | from the 32768 Hz hardware clock, this tick rate should divide | |
494 | it exactly: use a power-of-two value, such as 128 or 256, to | |
495 | reduce timing errors caused by rounding. | |
496 | ||
497 | On AT91sam926x chips, or otherwise when using a higher precision | |
498 | system clock (of at least several MHz), rounding is less of a | |
499 | problem so it can be safer to use a decimal values like 100. | |
500 | ||
fa3218d8 GL |
501 | choice |
502 | prompt "Select a UART for early kernel messages" | |
503 | ||
504 | config AT91_EARLY_DBGU | |
505 | bool "DBGU" | |
506 | ||
507 | config AT91_EARLY_USART0 | |
508 | bool "USART0" | |
509 | ||
510 | config AT91_EARLY_USART1 | |
511 | bool "USART1" | |
512 | ||
513 | config AT91_EARLY_USART2 | |
514 | bool "USART2" | |
515 | depends on ! ARCH_AT91X40 | |
516 | ||
517 | config AT91_EARLY_USART3 | |
518 | bool "USART3" | |
2ef9f59a | 519 | depends on HAVE_AT91_USART3 |
fa3218d8 GL |
520 | |
521 | config AT91_EARLY_USART4 | |
522 | bool "USART4" | |
2ef9f59a | 523 | depends on HAVE_AT91_USART4 |
fa3218d8 GL |
524 | |
525 | config AT91_EARLY_USART5 | |
526 | bool "USART5" | |
2ef9f59a | 527 | depends on HAVE_AT91_USART5 |
fa3218d8 GL |
528 | |
529 | endchoice | |
530 | ||
73a59c1c SP |
531 | endmenu |
532 | ||
533 | endif |