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Commit | Line | Data |
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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 |
d7b01f78 | 16 | select HAVE_ARCH_TRACEHOOK |
1da177e4 LT |
17 | help |
18 | The SuperH is a RISC processor targeted for use in embedded systems | |
19 | and consumer electronics; it was also used in the Sega Dreamcast | |
20 | gaming console. The SuperH port has a home page at | |
21 | <http://www.linux-sh.org/>. | |
22 | ||
39d28a2d | 23 | config SUPERH32 |
ea0e1a9a | 24 | def_bool !SUPERH64 |
d39f5450 CS |
25 | select HAVE_KPROBES |
26 | select HAVE_KRETPROBES | |
694f94f2 | 27 | select HAVE_FUNCTION_TRACER |
fad57feb MF |
28 | select HAVE_FTRACE_MCOUNT_RECORD |
29 | select HAVE_DYNAMIC_FTRACE | |
ab6e570b | 30 | select HAVE_ARCH_KGDB |
ea0e1a9a PM |
31 | |
32 | config SUPERH64 | |
33 | def_bool y if CPU_SH5 | |
39d28a2d | 34 | |
f42b7e3d PM |
35 | config ARCH_DEFCONFIG |
36 | string | |
37 | default "arch/sh/configs/shx3_defconfig" if SUPERH32 | |
38 | default "arch/sh/configs/cayman_defconfig" if SUPERH64 | |
39 | ||
1da177e4 | 40 | config RWSEM_GENERIC_SPINLOCK |
d7ef4fb3 | 41 | def_bool y |
1da177e4 LT |
42 | |
43 | config RWSEM_XCHGADD_ALGORITHM | |
44 | bool | |
45 | ||
fa691511 PM |
46 | config GENERIC_BUG |
47 | def_bool y | |
a82d53ec | 48 | depends on BUG && SUPERH32 |
fa691511 | 49 | |
e2268c71 | 50 | config GENERIC_FIND_NEXT_BIT |
d7ef4fb3 | 51 | def_bool y |
e2268c71 AM |
52 | |
53 | config GENERIC_HWEIGHT | |
d7ef4fb3 | 54 | def_bool y |
e2268c71 | 55 | |
1da177e4 | 56 | config GENERIC_HARDIRQS |
d7ef4fb3 | 57 | def_bool y |
1da177e4 | 58 | |
5093c9a4 PM |
59 | config GENERIC_HARDIRQS_NO__DO_IRQ |
60 | def_bool y | |
61 | ||
1da177e4 | 62 | config GENERIC_IRQ_PROBE |
d7ef4fb3 | 63 | def_bool y |
1da177e4 | 64 | |
2967dab1 MD |
65 | config GENERIC_GPIO |
66 | def_bool n | |
67 | ||
1da177e4 | 68 | config GENERIC_CALIBRATE_DELAY |
cf204fa7 | 69 | bool |
1da177e4 | 70 | |
cad82448 PM |
71 | config GENERIC_IOMAP |
72 | bool | |
73 | ||
45882145 PM |
74 | config GENERIC_TIME |
75 | def_bool n | |
76 | ||
57be2b48 PM |
77 | config GENERIC_CLOCKEVENTS |
78 | def_bool n | |
79 | ||
8c24594d PM |
80 | config GENERIC_CLOCKEVENTS_BROADCAST |
81 | bool | |
82 | ||
bdcab87b PM |
83 | config GENERIC_LOCKBREAK |
84 | def_bool y | |
85 | depends on SMP && PREEMPT | |
86 | ||
357d5946 PM |
87 | config SYS_SUPPORTS_PM |
88 | bool | |
af998a9a MD |
89 | depends on !SMP |
90 | ||
91 | config ARCH_SUSPEND_POSSIBLE | |
92 | def_bool n | |
93 | ||
94 | config ARCH_HIBERNATION_POSSIBLE | |
95 | def_bool n | |
357d5946 | 96 | |
0a9b0db1 PM |
97 | config SYS_SUPPORTS_APM_EMULATION |
98 | bool | |
af998a9a | 99 | select ARCH_SUSPEND_POSSIBLE |
357d5946 PM |
100 | |
101 | config SYS_SUPPORTS_SMP | |
102 | bool | |
103 | ||
104 | config SYS_SUPPORTS_NUMA | |
105 | bool | |
106 | ||
107 | config SYS_SUPPORTS_PCI | |
108 | bool | |
0a9b0db1 | 109 | |
f5ad881b PM |
110 | config SYS_SUPPORTS_CMT |
111 | bool | |
112 | ||
afbfb52e | 113 | config STACKTRACE_SUPPORT |
d7ef4fb3 | 114 | def_bool y |
afbfb52e PM |
115 | |
116 | config LOCKDEP_SUPPORT | |
d7ef4fb3 | 117 | def_bool y |
afbfb52e | 118 | |
5a89f1ad PM |
119 | config HAVE_LATENCYTOP_SUPPORT |
120 | def_bool y | |
121 | depends on !SMP | |
122 | ||
f0d1b0b3 | 123 | config ARCH_HAS_ILOG2_U32 |
d7ef4fb3 | 124 | def_bool n |
f0d1b0b3 DH |
125 | |
126 | config ARCH_HAS_ILOG2_U64 | |
d7ef4fb3 | 127 | def_bool n |
f0d1b0b3 | 128 | |
e257ad06 PM |
129 | config ARCH_NO_VIRT_TO_BUS |
130 | def_bool y | |
131 | ||
e7cc9a73 MD |
132 | config IO_TRAPPED |
133 | bool | |
134 | ||
1da177e4 LT |
135 | source "init/Kconfig" |
136 | ||
dc52ddc0 MH |
137 | source "kernel/Kconfig.freezer" |
138 | ||
1da177e4 LT |
139 | menu "System type" |
140 | ||
b5f42db0 PM |
141 | # |
142 | # Processor families | |
143 | # | |
144 | config CPU_SH2 | |
145 | bool | |
146 | ||
147 | config CPU_SH2A | |
148 | bool | |
149 | select CPU_SH2 | |
150 | ||
151 | config CPU_SH3 | |
152 | bool | |
153 | select CPU_HAS_INTEVT | |
154 | select CPU_HAS_SR_RB | |
155 | ||
156 | config CPU_SH4 | |
157 | bool | |
158 | select CPU_HAS_INTEVT | |
159 | select CPU_HAS_SR_RB | |
160 | select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2 | |
161 | select CPU_HAS_FPU if !CPU_SH4AL_DSP | |
162 | ||
163 | config CPU_SH4A | |
164 | bool | |
165 | select CPU_SH4 | |
166 | ||
167 | config CPU_SH4AL_DSP | |
168 | bool | |
169 | select CPU_SH4A | |
170 | select CPU_HAS_DSP | |
171 | ||
ea0e1a9a PM |
172 | config CPU_SH5 |
173 | bool | |
174 | select CPU_HAS_FPU | |
175 | ||
b5f42db0 PM |
176 | config CPU_SHX2 |
177 | bool | |
178 | ||
179 | config CPU_SHX3 | |
180 | bool | |
181 | ||
182 | choice | |
183 | prompt "Processor sub-type selection" | |
184 | ||
185 | # | |
186 | # Processor subtypes | |
187 | # | |
188 | ||
189 | # SH-2 Processor Support | |
190 | ||
191 | config CPU_SUBTYPE_SH7619 | |
192 | bool "Support SH7619 processor" | |
193 | select CPU_SH2 | |
f5ad881b | 194 | select SYS_SUPPORTS_CMT |
b5f42db0 PM |
195 | |
196 | # SH-2A Processor Support | |
197 | ||
2825999e PG |
198 | config CPU_SUBTYPE_SH7201 |
199 | bool "Support SH7201 processor" | |
200 | select CPU_SH2A | |
201 | select CPU_HAS_FPU | |
202 | ||
6d01f510 PM |
203 | config CPU_SUBTYPE_SH7203 |
204 | bool "Support SH7203 processor" | |
205 | select CPU_SH2A | |
74d99a5e | 206 | select CPU_HAS_FPU |
f5ad881b | 207 | select SYS_SUPPORTS_CMT |
6d01f510 | 208 | |
b5f42db0 PM |
209 | config CPU_SUBTYPE_SH7206 |
210 | bool "Support SH7206 processor" | |
211 | select CPU_SH2A | |
f5ad881b | 212 | select SYS_SUPPORTS_CMT |
b5f42db0 | 213 | |
a8f67f4b PM |
214 | config CPU_SUBTYPE_SH7263 |
215 | bool "Support SH7263 processor" | |
216 | select CPU_SH2A | |
74d99a5e | 217 | select CPU_HAS_FPU |
f5ad881b | 218 | select SYS_SUPPORTS_CMT |
a8f67f4b | 219 | |
2ad69908 PM |
220 | config CPU_SUBTYPE_MXG |
221 | bool "Support MX-G processor" | |
222 | select CPU_SH2A | |
223 | help | |
224 | Select MX-G if running on an R8A03022BG part. | |
225 | ||
b5f42db0 PM |
226 | # SH-3 Processor Support |
227 | ||
228 | config CPU_SUBTYPE_SH7705 | |
229 | bool "Support SH7705 processor" | |
230 | select CPU_SH3 | |
231 | ||
232 | config CPU_SUBTYPE_SH7706 | |
233 | bool "Support SH7706 processor" | |
234 | select CPU_SH3 | |
235 | help | |
236 | Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. | |
237 | ||
238 | config CPU_SUBTYPE_SH7707 | |
239 | bool "Support SH7707 processor" | |
240 | select CPU_SH3 | |
241 | help | |
242 | Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. | |
243 | ||
244 | config CPU_SUBTYPE_SH7708 | |
245 | bool "Support SH7708 processor" | |
246 | select CPU_SH3 | |
247 | help | |
248 | Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or | |
249 | if you have a 100 Mhz SH-3 HD6417708R CPU. | |
250 | ||
251 | config CPU_SUBTYPE_SH7709 | |
252 | bool "Support SH7709 processor" | |
253 | select CPU_SH3 | |
254 | help | |
255 | Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. | |
256 | ||
257 | config CPU_SUBTYPE_SH7710 | |
258 | bool "Support SH7710 processor" | |
259 | select CPU_SH3 | |
260 | select CPU_HAS_DSP | |
261 | help | |
262 | Select SH7710 if you have a SH3-DSP SH7710 CPU. | |
263 | ||
264 | config CPU_SUBTYPE_SH7712 | |
265 | bool "Support SH7712 processor" | |
266 | select CPU_SH3 | |
267 | select CPU_HAS_DSP | |
268 | help | |
269 | Select SH7712 if you have a SH3-DSP SH7712 CPU. | |
270 | ||
271 | config CPU_SUBTYPE_SH7720 | |
272 | bool "Support SH7720 processor" | |
273 | select CPU_SH3 | |
274 | select CPU_HAS_DSP | |
275 | help | |
276 | Select SH7720 if you have a SH3-DSP SH7720 CPU. | |
277 | ||
31a49c4b YS |
278 | config CPU_SUBTYPE_SH7721 |
279 | bool "Support SH7721 processor" | |
280 | select CPU_SH3 | |
281 | select CPU_HAS_DSP | |
282 | help | |
283 | Select SH7721 if you have a SH3-DSP SH7721 CPU. | |
284 | ||
b5f42db0 PM |
285 | # SH-4 Processor Support |
286 | ||
287 | config CPU_SUBTYPE_SH7750 | |
288 | bool "Support SH7750 processor" | |
289 | select CPU_SH4 | |
290 | help | |
291 | Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. | |
292 | ||
293 | config CPU_SUBTYPE_SH7091 | |
294 | bool "Support SH7091 processor" | |
295 | select CPU_SH4 | |
296 | help | |
297 | Select SH7091 if you have an SH-4 based Sega device (such as | |
298 | the Dreamcast, Naomi, and Naomi 2). | |
299 | ||
300 | config CPU_SUBTYPE_SH7750R | |
301 | bool "Support SH7750R processor" | |
302 | select CPU_SH4 | |
303 | ||
304 | config CPU_SUBTYPE_SH7750S | |
305 | bool "Support SH7750S processor" | |
306 | select CPU_SH4 | |
307 | ||
308 | config CPU_SUBTYPE_SH7751 | |
309 | bool "Support SH7751 processor" | |
310 | select CPU_SH4 | |
311 | help | |
312 | Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, | |
313 | or if you have a HD6417751R CPU. | |
314 | ||
315 | config CPU_SUBTYPE_SH7751R | |
316 | bool "Support SH7751R processor" | |
317 | select CPU_SH4 | |
318 | ||
319 | config CPU_SUBTYPE_SH7760 | |
320 | bool "Support SH7760 processor" | |
321 | select CPU_SH4 | |
322 | ||
323 | config CPU_SUBTYPE_SH4_202 | |
324 | bool "Support SH4-202 processor" | |
325 | select CPU_SH4 | |
326 | ||
327 | # SH-4A Processor Support | |
328 | ||
178dd0cd PM |
329 | config CPU_SUBTYPE_SH7723 |
330 | bool "Support SH7723 processor" | |
331 | select CPU_SH4A | |
332 | select CPU_SHX2 | |
333 | select ARCH_SPARSEMEM_ENABLE | |
f5ad881b | 334 | select SYS_SUPPORTS_CMT |
178dd0cd PM |
335 | help |
336 | Select SH7723 if you have an SH-MobileR2 CPU. | |
337 | ||
7d740a06 YS |
338 | config CPU_SUBTYPE_SH7763 |
339 | bool "Support SH7763 processor" | |
340 | select CPU_SH4A | |
341 | help | |
342 | Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. | |
343 | ||
b5f42db0 PM |
344 | config CPU_SUBTYPE_SH7770 |
345 | bool "Support SH7770 processor" | |
346 | select CPU_SH4A | |
347 | ||
348 | config CPU_SUBTYPE_SH7780 | |
349 | bool "Support SH7780 processor" | |
350 | select CPU_SH4A | |
351 | ||
352 | config CPU_SUBTYPE_SH7785 | |
353 | bool "Support SH7785 processor" | |
354 | select CPU_SH4A | |
355 | select CPU_SHX2 | |
356 | select ARCH_SPARSEMEM_ENABLE | |
357 | select SYS_SUPPORTS_NUMA | |
358 | ||
359 | config CPU_SUBTYPE_SHX3 | |
360 | bool "Support SH-X3 processor" | |
361 | select CPU_SH4A | |
362 | select CPU_SHX3 | |
363 | select ARCH_SPARSEMEM_ENABLE | |
364 | select SYS_SUPPORTS_NUMA | |
365 | select SYS_SUPPORTS_SMP | |
5840263e | 366 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
b5f42db0 PM |
367 | |
368 | # SH4AL-DSP Processor Support | |
369 | ||
370 | config CPU_SUBTYPE_SH7343 | |
371 | bool "Support SH7343 processor" | |
372 | select CPU_SH4AL_DSP | |
f5ad881b | 373 | select SYS_SUPPORTS_CMT |
b5f42db0 PM |
374 | |
375 | config CPU_SUBTYPE_SH7722 | |
376 | bool "Support SH7722 processor" | |
377 | select CPU_SH4AL_DSP | |
378 | select CPU_SHX2 | |
379 | select ARCH_SPARSEMEM_ENABLE | |
380 | select SYS_SUPPORTS_NUMA | |
f5ad881b | 381 | select SYS_SUPPORTS_CMT |
9109a30e MD |
382 | |
383 | config CPU_SUBTYPE_SH7366 | |
384 | bool "Support SH7366 processor" | |
385 | select CPU_SH4AL_DSP | |
386 | select CPU_SHX2 | |
387 | select ARCH_SPARSEMEM_ENABLE | |
388 | select SYS_SUPPORTS_NUMA | |
f5ad881b | 389 | select SYS_SUPPORTS_CMT |
b5f42db0 | 390 | |
ea0e1a9a PM |
391 | # SH-5 Processor Support |
392 | ||
393 | config CPU_SUBTYPE_SH5_101 | |
394 | bool "Support SH5-101 processor" | |
395 | select CPU_SH5 | |
396 | ||
397 | config CPU_SUBTYPE_SH5_103 | |
398 | bool "Support SH5-103 processor" | |
8ef97dd7 | 399 | select CPU_SH5 |
ea0e1a9a | 400 | |
b5f42db0 PM |
401 | endchoice |
402 | ||
f3d22298 | 403 | source "arch/sh/mm/Kconfig" |
939a24a6 | 404 | |
4690bdc7 | 405 | source "arch/sh/Kconfig.cpu" |
f3d22298 | 406 | |
939a24a6 | 407 | source "arch/sh/boards/Kconfig" |
32351a28 | 408 | |
32351a28 PM |
409 | menu "Timer and clock configuration" |
410 | ||
cad82448 | 411 | config SH_TMU |
f5ad881b | 412 | bool "TMU timer support" |
9d4436a6 | 413 | depends on CPU_SH3 || CPU_SH4 |
f5ad881b | 414 | default y |
57be2b48 PM |
415 | select GENERIC_TIME |
416 | select GENERIC_CLOCKEVENTS | |
1da177e4 | 417 | help |
cad82448 | 418 | This enables the use of the TMU as the system timer. |
1da177e4 | 419 | |
9d4436a6 | 420 | config SH_CMT |
f5ad881b PM |
421 | bool "CMT timer support" |
422 | depends on SYS_SUPPORTS_CMT | |
423 | default y | |
9d4436a6 YS |
424 | help |
425 | This enables the use of the CMT as the system timer. | |
426 | ||
f5ad881b PM |
427 | # |
428 | # Support for the new-style CMT driver. This will replace SH_CMT | |
429 | # once its other dependencies are merged. | |
430 | # | |
431 | config SH_TIMER_CMT | |
432 | bool "CMT clockevents driver" | |
433 | depends on SYS_SUPPORTS_CMT && !SH_CMT | |
f5ad881b PM |
434 | select GENERIC_CLOCKEVENTS |
435 | ||
9d4436a6 | 436 | config SH_MTU2 |
f5ad881b | 437 | bool "MTU2 timer support" |
9d4436a6 | 438 | depends on CPU_SH2A |
f5ad881b | 439 | default y |
9d4436a6 YS |
440 | help |
441 | This enables the use of the MTU2 as the system timer. | |
442 | ||
417528a2 PM |
443 | config SH_TIMER_IRQ |
444 | int | |
7d740a06 YS |
445 | default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \ |
446 | CPU_SUBTYPE_SH7763 | |
417528a2 PM |
447 | default "86" if CPU_SUBTYPE_SH7619 |
448 | default "140" if CPU_SUBTYPE_SH7206 | |
d63f3a58 PM |
449 | default "142" if CPU_SUBTYPE_SH7203 && SH_CMT |
450 | default "153" if CPU_SUBTYPE_SH7203 && SH_MTU2 | |
2ad69908 | 451 | default "238" if CPU_SUBTYPE_MXG |
417528a2 PM |
452 | default "16" |
453 | ||
cad82448 PM |
454 | config SH_PCLK_FREQ |
455 | int "Peripheral clock frequency (in Hz)" | |
870e8a24 | 456 | default "27000000" if CPU_SUBTYPE_SH7343 |
9d4436a6 | 457 | default "31250000" if CPU_SUBTYPE_SH7619 |
05627486 | 458 | default "32000000" if CPU_SUBTYPE_SH7722 |
178dd0cd | 459 | default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \ |
9d4436a6 | 460 | CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ |
a8f67f4b | 461 | CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \ |
2ad69908 | 462 | CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG |
05627486 | 463 | default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R |
cad82448 | 464 | default "66000000" if CPU_SUBTYPE_SH4_202 |
05627486 | 465 | default "50000000" |
1da177e4 | 466 | help |
cad82448 PM |
467 | This option is used to specify the peripheral clock frequency. |
468 | This is necessary for determining the reference clock value on | |
469 | platforms lacking an RTC. | |
1da177e4 | 470 | |
9d4436a6 YS |
471 | config SH_CLK_MD |
472 | int "CPU Mode Pin Setting" | |
6d01f510 | 473 | depends on CPU_SH2 |
357d5946 PM |
474 | default 6 if CPU_SUBTYPE_SH7206 |
475 | default 5 if CPU_SUBTYPE_SH7619 | |
476 | default 0 | |
9d4436a6 | 477 | help |
11cbb70e | 478 | MD2 - MD0 pin setting. |
9d4436a6 | 479 | |
57be2b48 PM |
480 | source "kernel/time/Kconfig" |
481 | ||
32351a28 PM |
482 | endmenu |
483 | ||
cad82448 PM |
484 | menu "CPU Frequency scaling" |
485 | ||
486 | source "drivers/cpufreq/Kconfig" | |
1da177e4 | 487 | |
cad82448 PM |
488 | config SH_CPU_FREQ |
489 | tristate "SuperH CPU Frequency driver" | |
cb5ec75b | 490 | depends on CPU_FREQ |
cad82448 | 491 | select CPU_FREQ_TABLE |
1da177e4 | 492 | help |
8a655053 PM |
493 | This adds the cpufreq driver for SuperH. Any CPU that supports |
494 | clock rate rounding through the clock framework can use this | |
495 | driver. While it will make the kernel slightly larger, this is | |
496 | harmless for CPUs that don't support rate rounding. The driver | |
497 | will also generate a notice in the boot log before disabling | |
498 | itself if the CPU in question is not capable of rate rounding. | |
1da177e4 | 499 | |
cad82448 | 500 | For details, take a look at <file:Documentation/cpu-freq>. |
1da177e4 LT |
501 | |
502 | If unsure, say N. | |
503 | ||
cad82448 PM |
504 | endmenu |
505 | ||
9f5e8eee PM |
506 | source "arch/sh/drivers/Kconfig" |
507 | ||
cad82448 | 508 | endmenu |
1da177e4 | 509 | |
cad82448 PM |
510 | menu "Kernel features" |
511 | ||
91b91d01 PM |
512 | source kernel/Kconfig.hz |
513 | ||
cad82448 PM |
514 | config KEXEC |
515 | bool "kexec system call (EXPERIMENTAL)" | |
640f7487 | 516 | depends on SUPERH32 && EXPERIMENTAL |
1da177e4 | 517 | help |
cad82448 PM |
518 | kexec is a system call that implements the ability to shutdown your |
519 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 520 | but it is independent of the system firmware. And like a reboot |
cad82448 PM |
521 | you can start any kernel with it, not just Linux. |
522 | ||
1f1332f7 | 523 | The name comes from the similarity to the exec system call. |
cad82448 PM |
524 | |
525 | It is an ongoing process to be certain the hardware in a machine | |
526 | is properly shutdown, so do not be surprised if this code does not | |
527 | initially work for you. It may help to enable device hotplugging | |
528 | support. As of this writing the exact hardware interface is | |
529 | strongly in flux, so no good recommendation can be made. | |
530 | ||
4d5ade5b PM |
531 | config CRASH_DUMP |
532 | bool "kernel crash dumps (EXPERIMENTAL)" | |
640f7487 | 533 | depends on SUPERH32 && EXPERIMENTAL |
4d5ade5b PM |
534 | help |
535 | Generate crash dump after being started by kexec. | |
536 | This should be normally only set in special crash dump kernels | |
537 | which are loaded in the main kernel with kexec-tools into | |
538 | a specially reserved region and then later executed after | |
539 | a crash by kdump/kexec. The crash dump kernel must be compiled | |
540 | to a memory address not used by the main kernel using | |
541 | MEMORY_START. | |
542 | ||
543 | For more details see Documentation/kdump/kdump.txt | |
544 | ||
c4637d47 PM |
545 | config SECCOMP |
546 | bool "Enable seccomp to safely compute untrusted bytecode" | |
547 | depends on PROC_FS | |
c4637d47 PM |
548 | help |
549 | This kernel feature is useful for number crunching applications | |
550 | that may need to compute untrusted bytecode during their | |
551 | execution. By using pipes or other transports made available to | |
552 | the process as file descriptors supporting the read/write | |
553 | syscalls, it's possible to isolate those applications in | |
554 | their own address space using seccomp. Once seccomp is | |
555 | enabled via prctl, it cannot be disabled and the task is only | |
556 | allowed to execute a few safe syscalls defined by each seccomp | |
557 | mode. | |
558 | ||
559 | If unsure, say N. | |
560 | ||
1da177e4 LT |
561 | config SMP |
562 | bool "Symmetric multi-processing support" | |
357d5946 | 563 | depends on SYS_SUPPORTS_SMP |
490f5de5 | 564 | select USE_GENERIC_SMP_HELPERS |
1da177e4 LT |
565 | ---help--- |
566 | This enables support for systems with more than one CPU. If you have | |
567 | a system with only one CPU, like most personal computers, say N. If | |
568 | you have a system with more than one CPU, say Y. | |
569 | ||
570 | If you say N here, the kernel will run on single and multiprocessor | |
571 | machines, but will use only one CPU of a multiprocessor machine. If | |
572 | you say Y here, the kernel will run on many, but not all, | |
573 | singleprocessor machines. On a singleprocessor machine, the kernel | |
574 | will run faster if you say N here. | |
575 | ||
576 | People using multiprocessor machines who say Y here should also say | |
577 | Y to "Enhanced Real Time Clock Support", below. | |
578 | ||
03502faa AB |
579 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
580 | available at <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
581 | |
582 | If you don't know what to do here, say N. | |
583 | ||
584 | config NR_CPUS | |
585 | int "Maximum number of CPUs (2-32)" | |
586 | range 2 32 | |
587 | depends on SMP | |
2b1bd1ac | 588 | default "4" if CPU_SHX3 |
1da177e4 LT |
589 | default "2" |
590 | help | |
591 | This allows you to specify the maximum number of CPUs which this | |
592 | kernel will support. The maximum supported value is 32 and the | |
593 | minimum value which makes sense is 2. | |
594 | ||
595 | This is purely to save memory - each supported CPU adds | |
596 | approximately eight kilobytes to the kernel image. | |
597 | ||
91b91d01 PM |
598 | source "kernel/Kconfig.preempt" |
599 | ||
83662461 PM |
600 | config GUSA |
601 | def_bool y | |
1efe4ce3 | 602 | depends on !SMP && SUPERH32 |
83662461 PM |
603 | help |
604 | This enables support for gUSA (general UserSpace Atomicity). | |
605 | This is the default implementation for both UP and non-ll/sc | |
606 | CPUs, and is used by the libc, amongst others. | |
607 | ||
608 | For additional information, design information can be found | |
609 | in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. | |
610 | ||
611 | This should only be disabled for special cases where alternate | |
612 | atomicity implementations exist. | |
613 | ||
1efe4ce3 SM |
614 | config GUSA_RB |
615 | bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" | |
616 | depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) | |
617 | help | |
618 | Enabling this option will allow the kernel to implement some | |
619 | atomic operations using a software implemention of load-locked/ | |
620 | store-conditional (LLSC). On machines which do not have hardware | |
621 | LLSC, this should be more efficient than the other alternative of | |
622 | disabling insterrupts around the atomic sequence. | |
623 | ||
cad82448 | 624 | endmenu |
1da177e4 | 625 | |
cad82448 | 626 | menu "Boot options" |
1da177e4 | 627 | |
cad82448 PM |
628 | config ZERO_PAGE_OFFSET |
629 | hex "Zero page offset" | |
f5f826c6 | 630 | default "0x00004000" if SH_SH03 |
7a847f81 PM |
631 | default "0x00010000" if PAGE_SIZE_64KB |
632 | default "0x00002000" if PAGE_SIZE_8KB | |
cad82448 | 633 | default "0x00001000" |
1da177e4 | 634 | help |
cad82448 | 635 | This sets the default offset of zero page. |
1da177e4 | 636 | |
cad82448 PM |
637 | config BOOT_LINK_OFFSET |
638 | hex "Link address offset for booting" | |
639 | default "0x00800000" | |
640 | help | |
641 | This option allows you to set the link address offset of the zImage. | |
642 | This can be useful if you are on a board which has a small amount of | |
643 | memory. | |
1da177e4 | 644 | |
cad82448 PM |
645 | config UBC_WAKEUP |
646 | bool "Wakeup UBC on startup" | |
0e3a9aab | 647 | depends on CPU_SH4 && !CPU_SH4A |
cad82448 PM |
648 | help |
649 | Selecting this option will wakeup the User Break Controller (UBC) on | |
650 | startup. Although the UBC is left in an awake state when the processor | |
651 | comes up, some boot loaders misbehave by putting the UBC to sleep in a | |
652 | power saving state, which causes issues with things like ptrace(). | |
1da177e4 | 653 | |
cad82448 | 654 | If unsure, say N. |
1da177e4 | 655 | |
cad82448 PM |
656 | config CMDLINE_BOOL |
657 | bool "Default bootloader kernel arguments" | |
1da177e4 | 658 | |
cad82448 PM |
659 | config CMDLINE |
660 | string "Initial kernel command string" | |
661 | depends on CMDLINE_BOOL | |
662 | default "console=ttySC1,115200" | |
1da177e4 LT |
663 | |
664 | endmenu | |
665 | ||
cad82448 | 666 | menu "Bus options" |
1da177e4 | 667 | |
cad82448 PM |
668 | config SUPERHYWAY |
669 | tristate "SuperHyway Bus support" | |
670 | depends on CPU_SUBTYPE_SH4_202 | |
1da177e4 | 671 | |
17be2d2b | 672 | config MAPLE |
e16038ab PM |
673 | bool "Maple Bus support" |
674 | depends on SH_DREAMCAST | |
675 | help | |
676 | The Maple Bus is SEGA's serial communication bus for peripherals | |
677 | on the Dreamcast. Without this bus support you won't be able to | |
678 | get your Dreamcast keyboard etc to work, so most users | |
679 | probably want to say 'Y' here, unless you are only using the | |
680 | Dreamcast with a serial line terminal or a remote network | |
681 | connection. | |
17be2d2b | 682 | |
1da177e4 LT |
683 | source "arch/sh/drivers/pci/Kconfig" |
684 | ||
e16038ab PM |
685 | source "drivers/pci/pcie/Kconfig" |
686 | ||
1da177e4 LT |
687 | source "drivers/pci/Kconfig" |
688 | ||
689 | source "drivers/pcmcia/Kconfig" | |
690 | ||
691 | source "drivers/pci/hotplug/Kconfig" | |
692 | ||
693 | endmenu | |
694 | ||
695 | menu "Executable file formats" | |
696 | ||
697 | source "fs/Kconfig.binfmt" | |
698 | ||
699 | endmenu | |
700 | ||
3aa770e7 | 701 | menu "Power management options (EXPERIMENTAL)" |
af998a9a | 702 | depends on EXPERIMENTAL |
f4cb5700 | 703 | |
c6f17cb2 MD |
704 | source "kernel/power/Kconfig" |
705 | ||
706 | source "drivers/cpuidle/Kconfig" | |
3aa770e7 | 707 | |
3aa770e7 AS |
708 | endmenu |
709 | ||
d5950b43 SR |
710 | source "net/Kconfig" |
711 | ||
1da177e4 LT |
712 | source "drivers/Kconfig" |
713 | ||
714 | source "fs/Kconfig" | |
715 | ||
1da177e4 LT |
716 | source "arch/sh/Kconfig.debug" |
717 | ||
718 | source "security/Kconfig" | |
719 | ||
720 | source "crypto/Kconfig" | |
721 | ||
722 | source "lib/Kconfig" |