Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | # |
2 | # For a description of the syntax of this configuration file, | |
3 | # see Documentation/kbuild/kconfig-language.txt. | |
4 | # | |
5 | ||
6 | mainmenu "Linux/SuperH Kernel Configuration" | |
7 | ||
8 | config SUPERH | |
ea0e1a9a | 9 | def_bool y |
7a440c95 | 10 | select EMBEDDED |
9483a578 | 11 | select HAVE_CLK |
ec7748b5 | 12 | select HAVE_IDE |
42d4b839 | 13 | select HAVE_OPROFILE |
9de90ac2 | 14 | select HAVE_GENERIC_DMA_COHERENT |
21944781 | 15 | select HAVE_IOREMAP_PROT if MMU |
1da177e4 LT |
16 | help |
17 | The SuperH is a RISC processor targeted for use in embedded systems | |
18 | and consumer electronics; it was also used in the Sega Dreamcast | |
19 | gaming console. The SuperH port has a home page at | |
20 | <http://www.linux-sh.org/>. | |
21 | ||
39d28a2d | 22 | config SUPERH32 |
ea0e1a9a | 23 | def_bool !SUPERH64 |
d39f5450 CS |
24 | select HAVE_KPROBES |
25 | select HAVE_KRETPROBES | |
e7ab3cd2 | 26 | select HAVE_ARCH_TRACEHOOK |
694f94f2 | 27 | select HAVE_FUNCTION_TRACER |
fad57feb MF |
28 | select HAVE_FTRACE_MCOUNT_RECORD |
29 | select HAVE_DYNAMIC_FTRACE | |
ea0e1a9a PM |
30 | |
31 | config SUPERH64 | |
32 | def_bool y if CPU_SH5 | |
39d28a2d | 33 | |
f42b7e3d PM |
34 | config ARCH_DEFCONFIG |
35 | string | |
36 | default "arch/sh/configs/shx3_defconfig" if SUPERH32 | |
37 | default "arch/sh/configs/cayman_defconfig" if SUPERH64 | |
38 | ||
1da177e4 | 39 | config RWSEM_GENERIC_SPINLOCK |
d7ef4fb3 | 40 | def_bool y |
1da177e4 LT |
41 | |
42 | config RWSEM_XCHGADD_ALGORITHM | |
43 | bool | |
44 | ||
fa691511 PM |
45 | config GENERIC_BUG |
46 | def_bool y | |
a82d53ec | 47 | depends on BUG && SUPERH32 |
fa691511 | 48 | |
e2268c71 | 49 | config GENERIC_FIND_NEXT_BIT |
d7ef4fb3 | 50 | def_bool y |
e2268c71 AM |
51 | |
52 | config GENERIC_HWEIGHT | |
d7ef4fb3 | 53 | def_bool y |
e2268c71 | 54 | |
1da177e4 | 55 | config GENERIC_HARDIRQS |
d7ef4fb3 | 56 | def_bool y |
1da177e4 | 57 | |
5093c9a4 PM |
58 | config GENERIC_HARDIRQS_NO__DO_IRQ |
59 | def_bool y | |
f9d62c00 PM |
60 | depends on SUPERH32 && (!SH_DREAMCAST && !SH_SH4202_MICRODEV && \ |
61 | !SH_7751_SYSTEMH && !HD64461) | |
5093c9a4 | 62 | |
1da177e4 | 63 | config GENERIC_IRQ_PROBE |
d7ef4fb3 | 64 | def_bool y |
1da177e4 | 65 | |
2967dab1 MD |
66 | config GENERIC_GPIO |
67 | def_bool n | |
68 | ||
1da177e4 | 69 | config GENERIC_CALIBRATE_DELAY |
cf204fa7 | 70 | bool |
1da177e4 | 71 | |
cad82448 PM |
72 | config GENERIC_IOMAP |
73 | bool | |
74 | ||
45882145 PM |
75 | config GENERIC_TIME |
76 | def_bool n | |
77 | ||
57be2b48 PM |
78 | config GENERIC_CLOCKEVENTS |
79 | def_bool n | |
80 | ||
8c24594d PM |
81 | config GENERIC_CLOCKEVENTS_BROADCAST |
82 | bool | |
83 | ||
bdcab87b PM |
84 | config GENERIC_LOCKBREAK |
85 | def_bool y | |
86 | depends on SMP && PREEMPT | |
87 | ||
357d5946 PM |
88 | config SYS_SUPPORTS_PM |
89 | bool | |
af998a9a MD |
90 | depends on !SMP |
91 | ||
92 | config ARCH_SUSPEND_POSSIBLE | |
93 | def_bool n | |
94 | ||
95 | config ARCH_HIBERNATION_POSSIBLE | |
96 | def_bool n | |
357d5946 | 97 | |
0a9b0db1 PM |
98 | config SYS_SUPPORTS_APM_EMULATION |
99 | bool | |
af998a9a | 100 | select ARCH_SUSPEND_POSSIBLE |
357d5946 PM |
101 | |
102 | config SYS_SUPPORTS_SMP | |
103 | bool | |
104 | ||
105 | config SYS_SUPPORTS_NUMA | |
106 | bool | |
107 | ||
108 | config SYS_SUPPORTS_PCI | |
109 | bool | |
0a9b0db1 | 110 | |
afbfb52e | 111 | config STACKTRACE_SUPPORT |
d7ef4fb3 | 112 | def_bool y |
afbfb52e PM |
113 | |
114 | config LOCKDEP_SUPPORT | |
d7ef4fb3 | 115 | def_bool y |
afbfb52e | 116 | |
5a89f1ad PM |
117 | config HAVE_LATENCYTOP_SUPPORT |
118 | def_bool y | |
119 | depends on !SMP | |
120 | ||
f0d1b0b3 | 121 | config ARCH_HAS_ILOG2_U32 |
d7ef4fb3 | 122 | def_bool n |
f0d1b0b3 DH |
123 | |
124 | config ARCH_HAS_ILOG2_U64 | |
d7ef4fb3 | 125 | def_bool n |
f0d1b0b3 | 126 | |
e257ad06 PM |
127 | config ARCH_NO_VIRT_TO_BUS |
128 | def_bool y | |
129 | ||
e7cc9a73 MD |
130 | config IO_TRAPPED |
131 | bool | |
132 | ||
1da177e4 LT |
133 | source "init/Kconfig" |
134 | ||
dc52ddc0 MH |
135 | source "kernel/Kconfig.freezer" |
136 | ||
1da177e4 LT |
137 | menu "System type" |
138 | ||
b5f42db0 PM |
139 | # |
140 | # Processor families | |
141 | # | |
142 | config CPU_SH2 | |
143 | bool | |
144 | ||
145 | config CPU_SH2A | |
146 | bool | |
147 | select CPU_SH2 | |
148 | ||
149 | config CPU_SH3 | |
150 | bool | |
151 | select CPU_HAS_INTEVT | |
152 | select CPU_HAS_SR_RB | |
153 | ||
154 | config CPU_SH4 | |
155 | bool | |
156 | select CPU_HAS_INTEVT | |
157 | select CPU_HAS_SR_RB | |
158 | select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2 | |
159 | select CPU_HAS_FPU if !CPU_SH4AL_DSP | |
160 | ||
161 | config CPU_SH4A | |
162 | bool | |
163 | select CPU_SH4 | |
164 | ||
165 | config CPU_SH4AL_DSP | |
166 | bool | |
167 | select CPU_SH4A | |
168 | select CPU_HAS_DSP | |
169 | ||
ea0e1a9a PM |
170 | config CPU_SH5 |
171 | bool | |
172 | select CPU_HAS_FPU | |
173 | ||
b5f42db0 PM |
174 | config CPU_SHX2 |
175 | bool | |
176 | ||
177 | config CPU_SHX3 | |
178 | bool | |
179 | ||
180 | choice | |
181 | prompt "Processor sub-type selection" | |
182 | ||
183 | # | |
184 | # Processor subtypes | |
185 | # | |
186 | ||
187 | # SH-2 Processor Support | |
188 | ||
189 | config CPU_SUBTYPE_SH7619 | |
190 | bool "Support SH7619 processor" | |
191 | select CPU_SH2 | |
192 | ||
193 | # SH-2A Processor Support | |
194 | ||
2825999e PG |
195 | config CPU_SUBTYPE_SH7201 |
196 | bool "Support SH7201 processor" | |
197 | select CPU_SH2A | |
198 | select CPU_HAS_FPU | |
199 | ||
6d01f510 PM |
200 | config CPU_SUBTYPE_SH7203 |
201 | bool "Support SH7203 processor" | |
202 | select CPU_SH2A | |
74d99a5e | 203 | select CPU_HAS_FPU |
6d01f510 | 204 | |
b5f42db0 PM |
205 | config CPU_SUBTYPE_SH7206 |
206 | bool "Support SH7206 processor" | |
207 | select CPU_SH2A | |
208 | ||
a8f67f4b PM |
209 | config CPU_SUBTYPE_SH7263 |
210 | bool "Support SH7263 processor" | |
211 | select CPU_SH2A | |
74d99a5e | 212 | select CPU_HAS_FPU |
a8f67f4b | 213 | |
2ad69908 PM |
214 | config CPU_SUBTYPE_MXG |
215 | bool "Support MX-G processor" | |
216 | select CPU_SH2A | |
217 | help | |
218 | Select MX-G if running on an R8A03022BG part. | |
219 | ||
b5f42db0 PM |
220 | # SH-3 Processor Support |
221 | ||
222 | config CPU_SUBTYPE_SH7705 | |
223 | bool "Support SH7705 processor" | |
224 | select CPU_SH3 | |
225 | ||
226 | config CPU_SUBTYPE_SH7706 | |
227 | bool "Support SH7706 processor" | |
228 | select CPU_SH3 | |
229 | help | |
230 | Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. | |
231 | ||
232 | config CPU_SUBTYPE_SH7707 | |
233 | bool "Support SH7707 processor" | |
234 | select CPU_SH3 | |
235 | help | |
236 | Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. | |
237 | ||
238 | config CPU_SUBTYPE_SH7708 | |
239 | bool "Support SH7708 processor" | |
240 | select CPU_SH3 | |
241 | help | |
242 | Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or | |
243 | if you have a 100 Mhz SH-3 HD6417708R CPU. | |
244 | ||
245 | config CPU_SUBTYPE_SH7709 | |
246 | bool "Support SH7709 processor" | |
247 | select CPU_SH3 | |
248 | help | |
249 | Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. | |
250 | ||
251 | config CPU_SUBTYPE_SH7710 | |
252 | bool "Support SH7710 processor" | |
253 | select CPU_SH3 | |
254 | select CPU_HAS_DSP | |
255 | help | |
256 | Select SH7710 if you have a SH3-DSP SH7710 CPU. | |
257 | ||
258 | config CPU_SUBTYPE_SH7712 | |
259 | bool "Support SH7712 processor" | |
260 | select CPU_SH3 | |
261 | select CPU_HAS_DSP | |
262 | help | |
263 | Select SH7712 if you have a SH3-DSP SH7712 CPU. | |
264 | ||
265 | config CPU_SUBTYPE_SH7720 | |
266 | bool "Support SH7720 processor" | |
267 | select CPU_SH3 | |
268 | select CPU_HAS_DSP | |
269 | help | |
270 | Select SH7720 if you have a SH3-DSP SH7720 CPU. | |
271 | ||
31a49c4b YS |
272 | config CPU_SUBTYPE_SH7721 |
273 | bool "Support SH7721 processor" | |
274 | select CPU_SH3 | |
275 | select CPU_HAS_DSP | |
276 | help | |
277 | Select SH7721 if you have a SH3-DSP SH7721 CPU. | |
278 | ||
b5f42db0 PM |
279 | # SH-4 Processor Support |
280 | ||
281 | config CPU_SUBTYPE_SH7750 | |
282 | bool "Support SH7750 processor" | |
283 | select CPU_SH4 | |
284 | help | |
285 | Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. | |
286 | ||
287 | config CPU_SUBTYPE_SH7091 | |
288 | bool "Support SH7091 processor" | |
289 | select CPU_SH4 | |
290 | help | |
291 | Select SH7091 if you have an SH-4 based Sega device (such as | |
292 | the Dreamcast, Naomi, and Naomi 2). | |
293 | ||
294 | config CPU_SUBTYPE_SH7750R | |
295 | bool "Support SH7750R processor" | |
296 | select CPU_SH4 | |
297 | ||
298 | config CPU_SUBTYPE_SH7750S | |
299 | bool "Support SH7750S processor" | |
300 | select CPU_SH4 | |
301 | ||
302 | config CPU_SUBTYPE_SH7751 | |
303 | bool "Support SH7751 processor" | |
304 | select CPU_SH4 | |
305 | help | |
306 | Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, | |
307 | or if you have a HD6417751R CPU. | |
308 | ||
309 | config CPU_SUBTYPE_SH7751R | |
310 | bool "Support SH7751R processor" | |
311 | select CPU_SH4 | |
312 | ||
313 | config CPU_SUBTYPE_SH7760 | |
314 | bool "Support SH7760 processor" | |
315 | select CPU_SH4 | |
316 | ||
317 | config CPU_SUBTYPE_SH4_202 | |
318 | bool "Support SH4-202 processor" | |
319 | select CPU_SH4 | |
320 | ||
321 | # SH-4A Processor Support | |
322 | ||
178dd0cd PM |
323 | config CPU_SUBTYPE_SH7723 |
324 | bool "Support SH7723 processor" | |
325 | select CPU_SH4A | |
326 | select CPU_SHX2 | |
327 | select ARCH_SPARSEMEM_ENABLE | |
178dd0cd PM |
328 | help |
329 | Select SH7723 if you have an SH-MobileR2 CPU. | |
330 | ||
7d740a06 YS |
331 | config CPU_SUBTYPE_SH7763 |
332 | bool "Support SH7763 processor" | |
333 | select CPU_SH4A | |
334 | help | |
335 | Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. | |
336 | ||
b5f42db0 PM |
337 | config CPU_SUBTYPE_SH7770 |
338 | bool "Support SH7770 processor" | |
339 | select CPU_SH4A | |
340 | ||
341 | config CPU_SUBTYPE_SH7780 | |
342 | bool "Support SH7780 processor" | |
343 | select CPU_SH4A | |
344 | ||
345 | config CPU_SUBTYPE_SH7785 | |
346 | bool "Support SH7785 processor" | |
347 | select CPU_SH4A | |
348 | select CPU_SHX2 | |
349 | select ARCH_SPARSEMEM_ENABLE | |
350 | select SYS_SUPPORTS_NUMA | |
351 | ||
352 | config CPU_SUBTYPE_SHX3 | |
353 | bool "Support SH-X3 processor" | |
354 | select CPU_SH4A | |
355 | select CPU_SHX3 | |
356 | select ARCH_SPARSEMEM_ENABLE | |
357 | select SYS_SUPPORTS_NUMA | |
358 | select SYS_SUPPORTS_SMP | |
5840263e | 359 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
b5f42db0 PM |
360 | |
361 | # SH4AL-DSP Processor Support | |
362 | ||
363 | config CPU_SUBTYPE_SH7343 | |
364 | bool "Support SH7343 processor" | |
365 | select CPU_SH4AL_DSP | |
366 | ||
367 | config CPU_SUBTYPE_SH7722 | |
368 | bool "Support SH7722 processor" | |
369 | select CPU_SH4AL_DSP | |
370 | select CPU_SHX2 | |
371 | select ARCH_SPARSEMEM_ENABLE | |
372 | select SYS_SUPPORTS_NUMA | |
9109a30e MD |
373 | |
374 | config CPU_SUBTYPE_SH7366 | |
375 | bool "Support SH7366 processor" | |
376 | select CPU_SH4AL_DSP | |
377 | select CPU_SHX2 | |
378 | select ARCH_SPARSEMEM_ENABLE | |
379 | select SYS_SUPPORTS_NUMA | |
b5f42db0 | 380 | |
ea0e1a9a PM |
381 | # SH-5 Processor Support |
382 | ||
383 | config CPU_SUBTYPE_SH5_101 | |
384 | bool "Support SH5-101 processor" | |
385 | select CPU_SH5 | |
386 | ||
387 | config CPU_SUBTYPE_SH5_103 | |
388 | bool "Support SH5-103 processor" | |
8ef97dd7 | 389 | select CPU_SH5 |
ea0e1a9a | 390 | |
b5f42db0 PM |
391 | endchoice |
392 | ||
f3d22298 | 393 | source "arch/sh/mm/Kconfig" |
939a24a6 | 394 | |
4690bdc7 | 395 | source "arch/sh/Kconfig.cpu" |
f3d22298 | 396 | |
939a24a6 | 397 | source "arch/sh/boards/Kconfig" |
32351a28 | 398 | |
32351a28 PM |
399 | menu "Timer and clock configuration" |
400 | ||
cad82448 | 401 | config SH_TMU |
d7ef4fb3 HH |
402 | def_bool y |
403 | prompt "TMU timer support" | |
9d4436a6 | 404 | depends on CPU_SH3 || CPU_SH4 |
57be2b48 PM |
405 | select GENERIC_TIME |
406 | select GENERIC_CLOCKEVENTS | |
1da177e4 | 407 | help |
cad82448 | 408 | This enables the use of the TMU as the system timer. |
1da177e4 | 409 | |
9d4436a6 | 410 | config SH_CMT |
d7ef4fb3 HH |
411 | def_bool y |
412 | prompt "CMT timer support" | |
2ad69908 | 413 | depends on CPU_SH2 && !CPU_SUBTYPE_MXG |
9d4436a6 YS |
414 | help |
415 | This enables the use of the CMT as the system timer. | |
416 | ||
417 | config SH_MTU2 | |
d7ef4fb3 HH |
418 | def_bool n |
419 | prompt "MTU2 timer support" | |
9d4436a6 | 420 | depends on CPU_SH2A |
9d4436a6 YS |
421 | help |
422 | This enables the use of the MTU2 as the system timer. | |
423 | ||
417528a2 PM |
424 | config SH_TIMER_IRQ |
425 | int | |
7d740a06 YS |
426 | default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \ |
427 | CPU_SUBTYPE_SH7763 | |
417528a2 PM |
428 | default "86" if CPU_SUBTYPE_SH7619 |
429 | default "140" if CPU_SUBTYPE_SH7206 | |
2b2d4e70 | 430 | default "142" if CPU_SUBTYPE_SH7203 |
2ad69908 | 431 | default "238" if CPU_SUBTYPE_MXG |
417528a2 PM |
432 | default "16" |
433 | ||
cad82448 PM |
434 | config SH_PCLK_FREQ |
435 | int "Peripheral clock frequency (in Hz)" | |
870e8a24 | 436 | default "27000000" if CPU_SUBTYPE_SH7343 |
9d4436a6 | 437 | default "31250000" if CPU_SUBTYPE_SH7619 |
05627486 | 438 | default "32000000" if CPU_SUBTYPE_SH7722 |
178dd0cd | 439 | default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \ |
9d4436a6 | 440 | CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ |
a8f67f4b | 441 | CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \ |
2ad69908 | 442 | CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG |
05627486 | 443 | default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R |
cad82448 | 444 | default "66000000" if CPU_SUBTYPE_SH4_202 |
05627486 | 445 | default "50000000" |
1da177e4 | 446 | help |
cad82448 PM |
447 | This option is used to specify the peripheral clock frequency. |
448 | This is necessary for determining the reference clock value on | |
449 | platforms lacking an RTC. | |
1da177e4 | 450 | |
9d4436a6 YS |
451 | config SH_CLK_MD |
452 | int "CPU Mode Pin Setting" | |
6d01f510 | 453 | depends on CPU_SH2 |
357d5946 PM |
454 | default 6 if CPU_SUBTYPE_SH7206 |
455 | default 5 if CPU_SUBTYPE_SH7619 | |
456 | default 0 | |
9d4436a6 | 457 | help |
11cbb70e | 458 | MD2 - MD0 pin setting. |
9d4436a6 | 459 | |
57be2b48 PM |
460 | source "kernel/time/Kconfig" |
461 | ||
32351a28 PM |
462 | endmenu |
463 | ||
cad82448 PM |
464 | menu "CPU Frequency scaling" |
465 | ||
466 | source "drivers/cpufreq/Kconfig" | |
1da177e4 | 467 | |
cad82448 PM |
468 | config SH_CPU_FREQ |
469 | tristate "SuperH CPU Frequency driver" | |
cb5ec75b | 470 | depends on CPU_FREQ |
cad82448 | 471 | select CPU_FREQ_TABLE |
1da177e4 | 472 | help |
cad82448 PM |
473 | This adds the cpufreq driver for SuperH. At present, only |
474 | the SH-4 is supported. | |
1da177e4 | 475 | |
cad82448 | 476 | For details, take a look at <file:Documentation/cpu-freq>. |
1da177e4 LT |
477 | |
478 | If unsure, say N. | |
479 | ||
cad82448 PM |
480 | endmenu |
481 | ||
9f5e8eee PM |
482 | source "arch/sh/drivers/Kconfig" |
483 | ||
cad82448 | 484 | endmenu |
1da177e4 | 485 | |
cad82448 | 486 | config ISA_DMA_API |
f5f826c6 | 487 | bool |
1da177e4 | 488 | |
cad82448 PM |
489 | menu "Kernel features" |
490 | ||
91b91d01 PM |
491 | source kernel/Kconfig.hz |
492 | ||
cad82448 PM |
493 | config KEXEC |
494 | bool "kexec system call (EXPERIMENTAL)" | |
640f7487 | 495 | depends on SUPERH32 && EXPERIMENTAL |
1da177e4 | 496 | help |
cad82448 PM |
497 | kexec is a system call that implements the ability to shutdown your |
498 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 499 | but it is independent of the system firmware. And like a reboot |
cad82448 PM |
500 | you can start any kernel with it, not just Linux. |
501 | ||
1f1332f7 | 502 | The name comes from the similarity to the exec system call. |
cad82448 PM |
503 | |
504 | It is an ongoing process to be certain the hardware in a machine | |
505 | is properly shutdown, so do not be surprised if this code does not | |
506 | initially work for you. It may help to enable device hotplugging | |
507 | support. As of this writing the exact hardware interface is | |
508 | strongly in flux, so no good recommendation can be made. | |
509 | ||
4d5ade5b PM |
510 | config CRASH_DUMP |
511 | bool "kernel crash dumps (EXPERIMENTAL)" | |
640f7487 | 512 | depends on SUPERH32 && EXPERIMENTAL |
4d5ade5b PM |
513 | help |
514 | Generate crash dump after being started by kexec. | |
515 | This should be normally only set in special crash dump kernels | |
516 | which are loaded in the main kernel with kexec-tools into | |
517 | a specially reserved region and then later executed after | |
518 | a crash by kdump/kexec. The crash dump kernel must be compiled | |
519 | to a memory address not used by the main kernel using | |
520 | MEMORY_START. | |
521 | ||
522 | For more details see Documentation/kdump/kdump.txt | |
523 | ||
c4637d47 PM |
524 | config SECCOMP |
525 | bool "Enable seccomp to safely compute untrusted bytecode" | |
526 | depends on PROC_FS | |
c4637d47 PM |
527 | help |
528 | This kernel feature is useful for number crunching applications | |
529 | that may need to compute untrusted bytecode during their | |
530 | execution. By using pipes or other transports made available to | |
531 | the process as file descriptors supporting the read/write | |
532 | syscalls, it's possible to isolate those applications in | |
533 | their own address space using seccomp. Once seccomp is | |
534 | enabled via prctl, it cannot be disabled and the task is only | |
535 | allowed to execute a few safe syscalls defined by each seccomp | |
536 | mode. | |
537 | ||
538 | If unsure, say N. | |
539 | ||
1da177e4 LT |
540 | config SMP |
541 | bool "Symmetric multi-processing support" | |
357d5946 | 542 | depends on SYS_SUPPORTS_SMP |
490f5de5 | 543 | select USE_GENERIC_SMP_HELPERS |
1da177e4 LT |
544 | ---help--- |
545 | This enables support for systems with more than one CPU. If you have | |
546 | a system with only one CPU, like most personal computers, say N. If | |
547 | you have a system with more than one CPU, say Y. | |
548 | ||
549 | If you say N here, the kernel will run on single and multiprocessor | |
550 | machines, but will use only one CPU of a multiprocessor machine. If | |
551 | you say Y here, the kernel will run on many, but not all, | |
552 | singleprocessor machines. On a singleprocessor machine, the kernel | |
553 | will run faster if you say N here. | |
554 | ||
555 | People using multiprocessor machines who say Y here should also say | |
556 | Y to "Enhanced Real Time Clock Support", below. | |
557 | ||
03502faa AB |
558 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
559 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
560 | |
561 | If you don't know what to do here, say N. | |
562 | ||
563 | config NR_CPUS | |
564 | int "Maximum number of CPUs (2-32)" | |
565 | range 2 32 | |
566 | depends on SMP | |
2b1bd1ac | 567 | default "4" if CPU_SHX3 |
1da177e4 LT |
568 | default "2" |
569 | help | |
570 | This allows you to specify the maximum number of CPUs which this | |
571 | kernel will support. The maximum supported value is 32 and the | |
572 | minimum value which makes sense is 2. | |
573 | ||
574 | This is purely to save memory - each supported CPU adds | |
575 | approximately eight kilobytes to the kernel image. | |
576 | ||
91b91d01 PM |
577 | source "kernel/Kconfig.preempt" |
578 | ||
83662461 PM |
579 | config GUSA |
580 | def_bool y | |
1efe4ce3 | 581 | depends on !SMP && SUPERH32 |
83662461 PM |
582 | help |
583 | This enables support for gUSA (general UserSpace Atomicity). | |
584 | This is the default implementation for both UP and non-ll/sc | |
585 | CPUs, and is used by the libc, amongst others. | |
586 | ||
587 | For additional information, design information can be found | |
588 | in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. | |
589 | ||
590 | This should only be disabled for special cases where alternate | |
591 | atomicity implementations exist. | |
592 | ||
1efe4ce3 SM |
593 | config GUSA_RB |
594 | bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" | |
595 | depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) | |
596 | help | |
597 | Enabling this option will allow the kernel to implement some | |
598 | atomic operations using a software implemention of load-locked/ | |
599 | store-conditional (LLSC). On machines which do not have hardware | |
600 | LLSC, this should be more efficient than the other alternative of | |
601 | disabling insterrupts around the atomic sequence. | |
602 | ||
cad82448 | 603 | endmenu |
1da177e4 | 604 | |
cad82448 | 605 | menu "Boot options" |
1da177e4 | 606 | |
cad82448 PM |
607 | config ZERO_PAGE_OFFSET |
608 | hex "Zero page offset" | |
f5f826c6 | 609 | default "0x00004000" if SH_SH03 |
7a847f81 PM |
610 | default "0x00010000" if PAGE_SIZE_64KB |
611 | default "0x00002000" if PAGE_SIZE_8KB | |
cad82448 | 612 | default "0x00001000" |
1da177e4 | 613 | help |
cad82448 | 614 | This sets the default offset of zero page. |
1da177e4 | 615 | |
cad82448 PM |
616 | config BOOT_LINK_OFFSET |
617 | hex "Link address offset for booting" | |
618 | default "0x00800000" | |
619 | help | |
620 | This option allows you to set the link address offset of the zImage. | |
621 | This can be useful if you are on a board which has a small amount of | |
622 | memory. | |
1da177e4 | 623 | |
cad82448 PM |
624 | config UBC_WAKEUP |
625 | bool "Wakeup UBC on startup" | |
0e3a9aab | 626 | depends on CPU_SH4 && !CPU_SH4A |
cad82448 PM |
627 | help |
628 | Selecting this option will wakeup the User Break Controller (UBC) on | |
629 | startup. Although the UBC is left in an awake state when the processor | |
630 | comes up, some boot loaders misbehave by putting the UBC to sleep in a | |
631 | power saving state, which causes issues with things like ptrace(). | |
1da177e4 | 632 | |
cad82448 | 633 | If unsure, say N. |
1da177e4 | 634 | |
cad82448 PM |
635 | config CMDLINE_BOOL |
636 | bool "Default bootloader kernel arguments" | |
1da177e4 | 637 | |
cad82448 PM |
638 | config CMDLINE |
639 | string "Initial kernel command string" | |
640 | depends on CMDLINE_BOOL | |
641 | default "console=ttySC1,115200" | |
1da177e4 LT |
642 | |
643 | endmenu | |
644 | ||
cad82448 | 645 | menu "Bus options" |
1da177e4 LT |
646 | |
647 | # Even on SuperH devices which don't have an ISA bus, | |
648 | # this variable helps the PCMCIA modules handle | |
649 | # IRQ requesting properly -- Greg Banks. | |
650 | # | |
651 | # Though we're generally not interested in it when | |
652 | # we're not using PCMCIA, so we make it dependent on | |
653 | # PCMCIA outright. -- PFM. | |
654 | config ISA | |
357d5946 PM |
655 | def_bool y |
656 | depends on PCMCIA && HD6446X_SERIES | |
1da177e4 LT |
657 | help |
658 | Find out whether you have ISA slots on your motherboard. ISA is the | |
659 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
660 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
661 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
662 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
663 | ||
664 | config EISA | |
665 | bool | |
666 | ---help--- | |
667 | The Extended Industry Standard Architecture (EISA) bus was | |
668 | developed as an open alternative to the IBM MicroChannel bus. | |
669 | ||
670 | The EISA bus provided some of the features of the IBM MicroChannel | |
671 | bus while maintaining backward compatibility with cards made for | |
672 | the older ISA bus. The EISA bus saw limited use between 1988 and | |
673 | 1995 when it was made obsolete by the PCI bus. | |
674 | ||
675 | Say Y here if you are building a kernel for an EISA-based machine. | |
676 | ||
677 | Otherwise, say N. | |
678 | ||
679 | config MCA | |
680 | bool | |
681 | help | |
682 | MicroChannel Architecture is found in some IBM PS/2 machines and | |
683 | laptops. It is a bus system similar to PCI or ISA. See | |
684 | <file:Documentation/mca.txt> (and especially the web page given | |
685 | there) before attempting to build an MCA bus kernel. | |
686 | ||
687 | config SBUS | |
688 | bool | |
689 | ||
cad82448 PM |
690 | config SUPERHYWAY |
691 | tristate "SuperHyway Bus support" | |
692 | depends on CPU_SUBTYPE_SH4_202 | |
1da177e4 | 693 | |
17be2d2b AM |
694 | config MAPLE |
695 | bool "Maple Bus support" | |
696 | depends on SH_DREAMCAST | |
697 | help | |
698 | The Maple Bus is SEGA's serial communication bus for peripherals | |
699 | on the Dreamcast. Without this bus support you won't be able to | |
700 | get your Dreamcast keyboard etc to work, so most users | |
701 | probably want to say 'Y' here, unless you are only using the | |
702 | Dreamcast with a serial line terminal or a remote network | |
703 | connection. | |
704 | ||
824e55f9 PM |
705 | config CF_ENABLER |
706 | bool "Compact Flash Enabler support" | |
707 | depends on SOLUTION_ENGINE || SH_SH03 | |
708 | ---help--- | |
709 | Compact Flash is a small, removable mass storage device introduced | |
710 | in 1994 originally as a PCMCIA device. If you say `Y' here, you | |
711 | compile in support for Compact Flash devices directly connected to | |
712 | a SuperH processor. A Compact Flash FAQ is available at | |
713 | <http://www.compactflash.org/faqs/faq.htm>. | |
714 | ||
715 | If your board has "Directly Connected" CompactFlash at area 5 or 6, | |
716 | you may want to enable this option. Then, you can use CF as | |
717 | primary IDE drive (only tested for SanDisk). | |
718 | ||
719 | If in doubt, select 'N'. | |
720 | ||
721 | choice | |
722 | prompt "Compact Flash Connection Area" | |
723 | depends on CF_ENABLER | |
724 | default CF_AREA6 | |
725 | ||
726 | config CF_AREA5 | |
727 | bool "Area5" | |
728 | help | |
729 | If your board has "Directly Connected" CompactFlash, You should | |
730 | select the area where your CF is connected to. | |
731 | ||
732 | - "Area5" if CompactFlash is connected to Area 5 (0x14000000) | |
733 | - "Area6" if it is connected to Area 6 (0x18000000) | |
734 | ||
735 | "Area6" will work for most boards. | |
736 | ||
737 | config CF_AREA6 | |
738 | bool "Area6" | |
739 | ||
740 | endchoice | |
741 | ||
742 | config CF_BASE_ADDR | |
743 | hex | |
744 | depends on CF_ENABLER | |
745 | default "0xb8000000" if CF_AREA6 | |
746 | default "0xb4000000" if CF_AREA5 | |
747 | ||
1da177e4 LT |
748 | source "arch/sh/drivers/pci/Kconfig" |
749 | ||
750 | source "drivers/pci/Kconfig" | |
751 | ||
752 | source "drivers/pcmcia/Kconfig" | |
753 | ||
754 | source "drivers/pci/hotplug/Kconfig" | |
755 | ||
756 | endmenu | |
757 | ||
758 | menu "Executable file formats" | |
759 | ||
760 | source "fs/Kconfig.binfmt" | |
761 | ||
762 | endmenu | |
763 | ||
3aa770e7 | 764 | menu "Power management options (EXPERIMENTAL)" |
af998a9a | 765 | depends on EXPERIMENTAL |
f4cb5700 | 766 | |
3aa770e7 AS |
767 | source kernel/power/Kconfig |
768 | ||
3aa770e7 AS |
769 | endmenu |
770 | ||
d5950b43 SR |
771 | source "net/Kconfig" |
772 | ||
1da177e4 LT |
773 | source "drivers/Kconfig" |
774 | ||
775 | source "fs/Kconfig" | |
776 | ||
1da177e4 LT |
777 | source "arch/sh/Kconfig.debug" |
778 | ||
779 | source "security/Kconfig" | |
780 | ||
781 | source "crypto/Kconfig" | |
782 | ||
783 | source "lib/Kconfig" |