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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux/SuperH Kernel Configuration"
7
8config SUPERH
Paul Mundtea0e1a92007-11-21 15:58:01 +09009 def_bool y
Paul Mundt7a440c92006-09-27 18:18:31 +090010 select EMBEDDED
David Brownell9483a572008-07-23 21:26:48 -070011 select HAVE_CLK
Sam Ravnborgec7748b2008-02-09 10:46:40 +010012 select HAVE_IDE
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050013 select HAVE_OPROFILE
Dmitry Baryshkov9de90ac2008-07-18 13:30:31 +040014 select HAVE_GENERIC_DMA_COHERENT
Paul Mundt21944782008-09-17 23:26:44 +090015 select HAVE_IOREMAP_PROT if MMU
Paul Mundtd7b01f72008-12-10 20:17:15 +090016 select HAVE_ARCH_TRACEHOOK
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 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
Paul Mundt39d28a22007-11-08 18:39:33 +090023config SUPERH32
Paul Mundtea0e1a92007-11-21 15:58:01 +090024 def_bool !SUPERH64
Chris Smithd39f5452008-09-05 17:15:39 +090025 select HAVE_KPROBES
26 select HAVE_KRETPROBES
Paul Mundt694f94f2008-10-31 16:20:36 +090027 select HAVE_FUNCTION_TRACER
Matt Flemingfad57fe2008-11-12 20:11:47 +090028 select HAVE_FTRACE_MCOUNT_RECORD
29 select HAVE_DYNAMIC_FTRACE
Paul Mundtab6e5702008-12-11 18:46:46 +090030 select HAVE_ARCH_KGDB
Paul Mundtea0e1a92007-11-21 15:58:01 +090031
32config SUPERH64
33 def_bool y if CPU_SH5
Paul Mundt39d28a22007-11-08 18:39:33 +090034
Paul Mundtf42b7e32008-07-29 20:12:51 +090035config ARCH_DEFCONFIG
36 string
37 default "arch/sh/configs/shx3_defconfig" if SUPERH32
38 default "arch/sh/configs/cayman_defconfig" if SUPERH64
39
Linus Torvalds1da177e2005-04-16 15:20:36 -070040config RWSEM_GENERIC_SPINLOCK
Harvey Harrisond7ef4fb2007-12-11 13:49:35 +090041 def_bool y
Linus Torvalds1da177e2005-04-16 15:20:36 -070042
43config RWSEM_XCHGADD_ALGORITHM
44 bool
45
Paul Mundtfa691512007-03-08 19:41:21 +090046config GENERIC_BUG
47 def_bool y
Paul Mundta82d53e2007-11-21 18:22:05 +090048 depends on BUG && SUPERH32
Paul Mundtfa691512007-03-08 19:41:21 +090049
Akinobu Mitae2268c72006-03-26 01:39:35 -080050config GENERIC_FIND_NEXT_BIT
Harvey Harrisond7ef4fb2007-12-11 13:49:35 +090051 def_bool y
Akinobu Mitae2268c72006-03-26 01:39:35 -080052
53config GENERIC_HWEIGHT
Harvey Harrisond7ef4fb2007-12-11 13:49:35 +090054 def_bool y
Akinobu Mitae2268c72006-03-26 01:39:35 -080055
Linus Torvalds1da177e2005-04-16 15:20:36 -070056config GENERIC_HARDIRQS
Harvey Harrisond7ef4fb2007-12-11 13:49:35 +090057 def_bool y
Linus Torvalds1da177e2005-04-16 15:20:36 -070058
Paul Mundt5093c9a2008-08-04 14:17:13 +090059config GENERIC_HARDIRQS_NO__DO_IRQ
60 def_bool y
61
Linus Torvalds1da177e2005-04-16 15:20:36 -070062config GENERIC_IRQ_PROBE
Harvey Harrisond7ef4fb2007-12-11 13:49:35 +090063 def_bool y
Linus Torvalds1da177e2005-04-16 15:20:36 -070064
Magnus Damm2967dab2008-10-08 20:41:43 +090065config GENERIC_GPIO
66 def_bool n
67
Linus Torvalds1da177e2005-04-16 15:20:36 -070068config GENERIC_CALIBRATE_DELAY
Paul Mundtcf204fa2008-09-08 20:47:42 +090069 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -070070
Paul Mundtcad82442006-01-16 22:14:19 -080071config GENERIC_IOMAP
72 bool
73
Paul Mundt45882142006-10-04 13:21:45 +090074config GENERIC_TIME
75 def_bool n
76
Paul Mundt57be2b42007-05-09 17:33:24 +090077config GENERIC_CLOCKEVENTS
78 def_bool n
79
Paul Mundt8c245942008-08-06 18:37:07 +090080config GENERIC_CLOCKEVENTS_BROADCAST
81 bool
82
Paul Mundtbdcab872008-08-04 14:09:15 +090083config GENERIC_LOCKBREAK
84 def_bool y
85 depends on SMP && PREEMPT
86
Paul Mundt357d5942007-06-11 15:32:07 +090087config SYS_SUPPORTS_PM
88 bool
Magnus Dammaf998a92008-12-04 22:45:12 +090089 depends on !SMP
90
91config ARCH_SUSPEND_POSSIBLE
92 def_bool n
93
94config ARCH_HIBERNATION_POSSIBLE
95 def_bool n
Paul Mundt357d5942007-06-11 15:32:07 +090096
Paul Mundt0a9b0db2007-01-24 21:56:20 +090097config SYS_SUPPORTS_APM_EMULATION
98 bool
Magnus Dammaf998a92008-12-04 22:45:12 +090099 select ARCH_SUSPEND_POSSIBLE
Paul Mundt357d5942007-06-11 15:32:07 +0900100
101config SYS_SUPPORTS_SMP
102 bool
103
104config SYS_SUPPORTS_NUMA
105 bool
106
107config SYS_SUPPORTS_PCI
108 bool
Paul Mundt0a9b0db2007-01-24 21:56:20 +0900109
Paul Mundtafbfb522006-12-04 18:17:28 +0900110config STACKTRACE_SUPPORT
Harvey Harrisond7ef4fb2007-12-11 13:49:35 +0900111 def_bool y
Paul Mundtafbfb522006-12-04 18:17:28 +0900112
113config LOCKDEP_SUPPORT
Harvey Harrisond7ef4fb2007-12-11 13:49:35 +0900114 def_bool y
Paul Mundtafbfb522006-12-04 18:17:28 +0900115
Paul Mundt5a89f1a2008-09-13 01:44:03 +0900116config HAVE_LATENCYTOP_SUPPORT
117 def_bool y
118 depends on !SMP
119
David Howellsf0d1b0b2006-12-08 02:37:49 -0800120config ARCH_HAS_ILOG2_U32
Harvey Harrisond7ef4fb2007-12-11 13:49:35 +0900121 def_bool n
David Howellsf0d1b0b2006-12-08 02:37:49 -0800122
123config ARCH_HAS_ILOG2_U64
Harvey Harrisond7ef4fb2007-12-11 13:49:35 +0900124 def_bool n
David Howellsf0d1b0b2006-12-08 02:37:49 -0800125
Paul Mundte257ad02007-07-25 11:18:00 +0900126config ARCH_NO_VIRT_TO_BUS
127 def_bool y
128
Magnus Damme7cc9a72008-02-07 20:18:21 +0900129config IO_TRAPPED
130 bool
131
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132source "init/Kconfig"
133
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700134source "kernel/Kconfig.freezer"
135
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136menu "System type"
137
Paul Mundtb5f42db2007-11-08 18:38:14 +0900138#
139# Processor families
140#
141config CPU_SH2
142 bool
143
144config CPU_SH2A
145 bool
146 select CPU_SH2
147
148config CPU_SH3
149 bool
150 select CPU_HAS_INTEVT
151 select CPU_HAS_SR_RB
152
153config CPU_SH4
154 bool
155 select CPU_HAS_INTEVT
156 select CPU_HAS_SR_RB
157 select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
158 select CPU_HAS_FPU if !CPU_SH4AL_DSP
159
160config CPU_SH4A
161 bool
162 select CPU_SH4
163
164config CPU_SH4AL_DSP
165 bool
166 select CPU_SH4A
167 select CPU_HAS_DSP
168
Paul Mundtea0e1a92007-11-21 15:58:01 +0900169config CPU_SH5
170 bool
171 select CPU_HAS_FPU
172
Paul Mundtb5f42db2007-11-08 18:38:14 +0900173config CPU_SHX2
174 bool
175
176config CPU_SHX3
177 bool
178
179choice
180 prompt "Processor sub-type selection"
181
182#
183# Processor subtypes
184#
185
186# SH-2 Processor Support
187
188config CPU_SUBTYPE_SH7619
189 bool "Support SH7619 processor"
190 select CPU_SH2
191
192# SH-2A Processor Support
193
Peter Griffin28259992008-11-28 22:48:20 +0900194config CPU_SUBTYPE_SH7201
195 bool "Support SH7201 processor"
196 select CPU_SH2A
197 select CPU_HAS_FPU
198
Paul Mundt6d01f512007-11-26 18:17:21 +0900199config CPU_SUBTYPE_SH7203
200 bool "Support SH7203 processor"
201 select CPU_SH2A
Paul Mundt74d99a52007-11-26 20:38:36 +0900202 select CPU_HAS_FPU
Paul Mundt6d01f512007-11-26 18:17:21 +0900203
Paul Mundtb5f42db2007-11-08 18:38:14 +0900204config CPU_SUBTYPE_SH7206
205 bool "Support SH7206 processor"
206 select CPU_SH2A
207
Paul Mundta8f67f42007-11-26 19:54:02 +0900208config CPU_SUBTYPE_SH7263
209 bool "Support SH7263 processor"
210 select CPU_SH2A
Paul Mundt74d99a52007-11-26 20:38:36 +0900211 select CPU_HAS_FPU
Paul Mundta8f67f42007-11-26 19:54:02 +0900212
Paul Mundt2ad69902008-03-13 12:52:44 +0900213config CPU_SUBTYPE_MXG
214 bool "Support MX-G processor"
215 select CPU_SH2A
216 help
217 Select MX-G if running on an R8A03022BG part.
218
Paul Mundtb5f42db2007-11-08 18:38:14 +0900219# SH-3 Processor Support
220
221config CPU_SUBTYPE_SH7705
222 bool "Support SH7705 processor"
223 select CPU_SH3
224
225config CPU_SUBTYPE_SH7706
226 bool "Support SH7706 processor"
227 select CPU_SH3
228 help
229 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
230
231config CPU_SUBTYPE_SH7707
232 bool "Support SH7707 processor"
233 select CPU_SH3
234 help
235 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
236
237config CPU_SUBTYPE_SH7708
238 bool "Support SH7708 processor"
239 select CPU_SH3
240 help
241 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
242 if you have a 100 Mhz SH-3 HD6417708R CPU.
243
244config CPU_SUBTYPE_SH7709
245 bool "Support SH7709 processor"
246 select CPU_SH3
247 help
248 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
249
250config CPU_SUBTYPE_SH7710
251 bool "Support SH7710 processor"
252 select CPU_SH3
253 select CPU_HAS_DSP
254 help
255 Select SH7710 if you have a SH3-DSP SH7710 CPU.
256
257config CPU_SUBTYPE_SH7712
258 bool "Support SH7712 processor"
259 select CPU_SH3
260 select CPU_HAS_DSP
261 help
262 Select SH7712 if you have a SH3-DSP SH7712 CPU.
263
264config CPU_SUBTYPE_SH7720
265 bool "Support SH7720 processor"
266 select CPU_SH3
267 select CPU_HAS_DSP
268 help
269 Select SH7720 if you have a SH3-DSP SH7720 CPU.
270
Yoshihiro Shimoda31a49c42007-12-26 11:45:06 +0900271config CPU_SUBTYPE_SH7721
272 bool "Support SH7721 processor"
273 select CPU_SH3
274 select CPU_HAS_DSP
275 help
276 Select SH7721 if you have a SH3-DSP SH7721 CPU.
277
Paul Mundtb5f42db2007-11-08 18:38:14 +0900278# SH-4 Processor Support
279
280config CPU_SUBTYPE_SH7750
281 bool "Support SH7750 processor"
282 select CPU_SH4
283 help
284 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
285
286config CPU_SUBTYPE_SH7091
287 bool "Support SH7091 processor"
288 select CPU_SH4
289 help
290 Select SH7091 if you have an SH-4 based Sega device (such as
291 the Dreamcast, Naomi, and Naomi 2).
292
293config CPU_SUBTYPE_SH7750R
294 bool "Support SH7750R processor"
295 select CPU_SH4
296
297config CPU_SUBTYPE_SH7750S
298 bool "Support SH7750S processor"
299 select CPU_SH4
300
301config CPU_SUBTYPE_SH7751
302 bool "Support SH7751 processor"
303 select CPU_SH4
304 help
305 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
306 or if you have a HD6417751R CPU.
307
308config CPU_SUBTYPE_SH7751R
309 bool "Support SH7751R processor"
310 select CPU_SH4
311
312config CPU_SUBTYPE_SH7760
313 bool "Support SH7760 processor"
314 select CPU_SH4
315
316config CPU_SUBTYPE_SH4_202
317 bool "Support SH4-202 processor"
318 select CPU_SH4
319
320# SH-4A Processor Support
321
Paul Mundt178dd0c2008-04-09 17:56:18 +0900322config CPU_SUBTYPE_SH7723
323 bool "Support SH7723 processor"
324 select CPU_SH4A
325 select CPU_SHX2
326 select ARCH_SPARSEMEM_ENABLE
Paul Mundt178dd0c2008-04-09 17:56:18 +0900327 help
328 Select SH7723 if you have an SH-MobileR2 CPU.
329
Yoshihiro Shimoda7d740a02008-01-07 14:40:07 +0900330config CPU_SUBTYPE_SH7763
331 bool "Support SH7763 processor"
332 select CPU_SH4A
333 help
334 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
335
Paul Mundtb5f42db2007-11-08 18:38:14 +0900336config CPU_SUBTYPE_SH7770
337 bool "Support SH7770 processor"
338 select CPU_SH4A
339
340config CPU_SUBTYPE_SH7780
341 bool "Support SH7780 processor"
342 select CPU_SH4A
343
344config CPU_SUBTYPE_SH7785
345 bool "Support SH7785 processor"
346 select CPU_SH4A
347 select CPU_SHX2
348 select ARCH_SPARSEMEM_ENABLE
349 select SYS_SUPPORTS_NUMA
350
351config CPU_SUBTYPE_SHX3
352 bool "Support SH-X3 processor"
353 select CPU_SH4A
354 select CPU_SHX3
355 select ARCH_SPARSEMEM_ENABLE
356 select SYS_SUPPORTS_NUMA
357 select SYS_SUPPORTS_SMP
Paul Mundt58402632008-09-05 15:36:39 +0900358 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Paul Mundtb5f42db2007-11-08 18:38:14 +0900359
360# SH4AL-DSP Processor Support
361
362config CPU_SUBTYPE_SH7343
363 bool "Support SH7343 processor"
364 select CPU_SH4AL_DSP
365
366config CPU_SUBTYPE_SH7722
367 bool "Support SH7722 processor"
368 select CPU_SH4AL_DSP
369 select CPU_SHX2
370 select ARCH_SPARSEMEM_ENABLE
371 select SYS_SUPPORTS_NUMA
372
Magnus Damm9109a302008-02-08 17:31:24 +0900373config CPU_SUBTYPE_SH7366
374 bool "Support SH7366 processor"
375 select CPU_SH4AL_DSP
376 select CPU_SHX2
377 select ARCH_SPARSEMEM_ENABLE
378 select SYS_SUPPORTS_NUMA
379
Paul Mundtea0e1a92007-11-21 15:58:01 +0900380# SH-5 Processor Support
381
382config CPU_SUBTYPE_SH5_101
383 bool "Support SH5-101 processor"
384 select CPU_SH5
385
386config CPU_SUBTYPE_SH5_103
387 bool "Support SH5-103 processor"
Paul Mundt8ef97dd2008-02-14 15:30:54 +0900388 select CPU_SH5
Paul Mundtea0e1a92007-11-21 15:58:01 +0900389
Paul Mundtb5f42db2007-11-08 18:38:14 +0900390endchoice
391
Paul Mundtcad82442006-01-16 22:14:19 -0800392source "arch/sh/mm/Kconfig"
Paul Mundt939a24a2008-07-29 21:41:37 +0900393
Paul Mundt4690bdc2007-11-09 13:45:42 +0900394source "arch/sh/Kconfig.cpu"
Paul Mundtcad82442006-01-16 22:14:19 -0800395
Paul Mundt939a24a2008-07-29 21:41:37 +0900396source "arch/sh/boards/Kconfig"
Paul Mundtf3d22292007-05-14 17:29:12 +0900397
Paul Mundt32351a22007-03-12 14:38:59 +0900398menu "Timer and clock configuration"
399
Paul Mundtcad82442006-01-16 22:14:19 -0800400config SH_TMU
Harvey Harrisond7ef4fb2007-12-11 13:49:35 +0900401 def_bool y
402 prompt "TMU timer support"
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900403 depends on CPU_SH3 || CPU_SH4
Paul Mundt57be2b42007-05-09 17:33:24 +0900404 select GENERIC_TIME
405 select GENERIC_CLOCKEVENTS
Paul Mundtcad82442006-01-16 22:14:19 -0800406 help
407 This enables the use of the TMU as the system timer.
408
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900409config SH_CMT
Harvey Harrisond7ef4fb2007-12-11 13:49:35 +0900410 def_bool y
411 prompt "CMT timer support"
Paul Mundt2ad69902008-03-13 12:52:44 +0900412 depends on CPU_SH2 && !CPU_SUBTYPE_MXG
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900413 help
414 This enables the use of the CMT as the system timer.
415
416config SH_MTU2
Harvey Harrisond7ef4fb2007-12-11 13:49:35 +0900417 def_bool n
418 prompt "MTU2 timer support"
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900419 depends on CPU_SH2A
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900420 help
421 This enables the use of the MTU2 as the system timer.
422
Paul Mundt417528a2006-11-20 11:18:30 +0900423config SH_TIMER_IRQ
424 int
Yoshihiro Shimoda7d740a02008-01-07 14:40:07 +0900425 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
426 CPU_SUBTYPE_SH7763
Paul Mundt417528a2006-11-20 11:18:30 +0900427 default "86" if CPU_SUBTYPE_SH7619
428 default "140" if CPU_SUBTYPE_SH7206
Paul Mundt2b2d4e72008-03-13 19:51:06 +0900429 default "142" if CPU_SUBTYPE_SH7203
Paul Mundt2ad69902008-03-13 12:52:44 +0900430 default "238" if CPU_SUBTYPE_MXG
Paul Mundt417528a2006-11-20 11:18:30 +0900431 default "16"
432
Paul Mundtcad82442006-01-16 22:14:19 -0800433config SH_PCLK_FREQ
434 int "Peripheral clock frequency (in Hz)"
Magnus Damm870e8a22007-07-25 10:49:21 +0900435 default "27000000" if CPU_SUBTYPE_SH7343
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900436 default "31250000" if CPU_SUBTYPE_SH7619
Paul Mundt05627482007-05-15 16:25:47 +0900437 default "32000000" if CPU_SUBTYPE_SH7722
Paul Mundt178dd0c2008-04-09 17:56:18 +0900438 default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900439 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
Paul Mundta8f67f42007-11-26 19:54:02 +0900440 CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
Paul Mundt2ad69902008-03-13 12:52:44 +0900441 CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG
Paul Mundt05627482007-05-15 16:25:47 +0900442 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
Paul Mundtcad82442006-01-16 22:14:19 -0800443 default "66000000" if CPU_SUBTYPE_SH4_202
Paul Mundt05627482007-05-15 16:25:47 +0900444 default "50000000"
Paul Mundtcad82442006-01-16 22:14:19 -0800445 help
446 This option is used to specify the peripheral clock frequency.
447 This is necessary for determining the reference clock value on
448 platforms lacking an RTC.
449
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900450config SH_CLK_MD
451 int "CPU Mode Pin Setting"
Paul Mundt6d01f512007-11-26 18:17:21 +0900452 depends on CPU_SH2
Paul Mundt357d5942007-06-11 15:32:07 +0900453 default 6 if CPU_SUBTYPE_SH7206
454 default 5 if CPU_SUBTYPE_SH7619
455 default 0
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900456 help
Yoshinori Sato11cbb702006-12-07 18:07:27 +0900457 MD2 - MD0 pin setting.
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900458
Paul Mundt57be2b42007-05-09 17:33:24 +0900459source "kernel/time/Kconfig"
460
Paul Mundt32351a22007-03-12 14:38:59 +0900461endmenu
462
Paul Mundtcad82442006-01-16 22:14:19 -0800463menu "CPU Frequency scaling"
464
465source "drivers/cpufreq/Kconfig"
466
467config SH_CPU_FREQ
468 tristate "SuperH CPU Frequency driver"
Paul Mundtcb5ec752007-07-20 13:38:19 +0900469 depends on CPU_FREQ
Paul Mundtcad82442006-01-16 22:14:19 -0800470 select CPU_FREQ_TABLE
471 help
Paul Mundt8a655052008-12-17 15:06:54 +0900472 This adds the cpufreq driver for SuperH. Any CPU that supports
473 clock rate rounding through the clock framework can use this
474 driver. While it will make the kernel slightly larger, this is
475 harmless for CPUs that don't support rate rounding. The driver
476 will also generate a notice in the boot log before disabling
477 itself if the CPU in question is not capable of rate rounding.
Paul Mundtcad82442006-01-16 22:14:19 -0800478
479 For details, take a look at <file:Documentation/cpu-freq>.
480
481 If unsure, say N.
482
483endmenu
484
Paul Mundt9f5e8ee2006-11-24 11:22:57 +0900485source "arch/sh/drivers/Kconfig"
486
Paul Mundtcad82442006-01-16 22:14:19 -0800487endmenu
488
Paul Mundtcad82442006-01-16 22:14:19 -0800489menu "Kernel features"
490
Paul Mundt91b91d02006-09-27 18:08:33 +0900491source kernel/Kconfig.hz
492
Paul Mundtcad82442006-01-16 22:14:19 -0800493config KEXEC
494 bool "kexec system call (EXPERIMENTAL)"
Paul Mundt640f7482008-04-25 13:04:56 +0900495 depends on SUPERH32 && EXPERIMENTAL
Paul Mundtcad82442006-01-16 22:14:19 -0800496 help
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
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400499 but it is independent of the system firmware. And like a reboot
Paul Mundtcad82442006-01-16 22:14:19 -0800500 you can start any kernel with it, not just Linux.
501
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400502 The name comes from the similarity to the exec system call.
Paul Mundtcad82442006-01-16 22:14:19 -0800503
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
Paul Mundt4d5ade52007-04-27 11:25:57 +0900510config CRASH_DUMP
511 bool "kernel crash dumps (EXPERIMENTAL)"
Paul Mundt640f7482008-04-25 13:04:56 +0900512 depends on SUPERH32 && EXPERIMENTAL
Paul Mundt4d5ade52007-04-27 11:25:57 +0900513 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
Paul Mundtc4637d42008-07-30 15:30:52 +0900524config SECCOMP
525 bool "Enable seccomp to safely compute untrusted bytecode"
526 depends on PROC_FS
Paul Mundtc4637d42008-07-30 15:30:52 +0900527 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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540config SMP
541 bool "Symmetric multi-processing support"
Paul Mundt357d5942007-06-11 15:32:07 +0900542 depends on SYS_SUPPORTS_SMP
Jens Axboe490f5de2008-06-10 20:52:59 +0200543 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544 ---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
Adrian Bunk03502fa2008-02-03 15:50:21 +0200558 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
559 available at <http://www.tldp.org/docs.html#howto>.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560
561 If you don't know what to do here, say N.
562
563config NR_CPUS
564 int "Maximum number of CPUs (2-32)"
565 range 2 32
566 depends on SMP
Paul Mundt2b1bd1a2007-06-20 18:27:10 +0900567 default "4" if CPU_SHX3
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568 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
Paul Mundt91b91d02006-09-27 18:08:33 +0900577source "kernel/Kconfig.preempt"
578
Paul Mundt83662462007-09-28 16:04:49 +0900579config GUSA
580 def_bool y
Stuart Menefy1efe4ce2007-11-30 16:12:36 +0900581 depends on !SMP && SUPERH32
Paul Mundt83662462007-09-28 16:04:49 +0900582 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
Stuart Menefy1efe4ce2007-11-30 16:12:36 +0900593config 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
Paul Mundtcad82442006-01-16 22:14:19 -0800603endmenu
604
605menu "Boot options"
606
607config ZERO_PAGE_OFFSET
608 hex "Zero page offset"
Adrian Bunkf5f826c2008-03-31 01:40:17 +0300609 default "0x00004000" if SH_SH03
Paul Mundt7a847f82006-12-26 15:29:19 +0900610 default "0x00010000" if PAGE_SIZE_64KB
611 default "0x00002000" if PAGE_SIZE_8KB
Paul Mundtcad82442006-01-16 22:14:19 -0800612 default "0x00001000"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613 help
Paul Mundtcad82442006-01-16 22:14:19 -0800614 This sets the default offset of zero page.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615
Paul Mundtcad82442006-01-16 22:14:19 -0800616config BOOT_LINK_OFFSET
617 hex "Link address offset for booting"
618 default "0x00800000"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619 help
Paul Mundtcad82442006-01-16 22:14:19 -0800620 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.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623
Paul Mundtcad82442006-01-16 22:14:19 -0800624config UBC_WAKEUP
625 bool "Wakeup UBC on startup"
Paul Mundt0e3a9aa2007-11-06 15:55:36 +0900626 depends on CPU_SH4 && !CPU_SH4A
Paul Mundtcad82442006-01-16 22:14:19 -0800627 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().
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632
633 If unsure, say N.
634
Paul Mundtcad82442006-01-16 22:14:19 -0800635config CMDLINE_BOOL
636 bool "Default bootloader kernel arguments"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637
Paul Mundtcad82442006-01-16 22:14:19 -0800638config CMDLINE
639 string "Initial kernel command string"
640 depends on CMDLINE_BOOL
641 default "console=ttySC1,115200"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642
643endmenu
644
Paul Mundtcad82442006-01-16 22:14:19 -0800645menu "Bus options"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700646
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.
654config ISA
Paul Mundt357d5942007-06-11 15:32:07 +0900655 def_bool y
656 depends on PCMCIA && HD6446X_SERIES
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657 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
664config 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
679config 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
687config SBUS
688 bool
689
Paul Mundtcad82442006-01-16 22:14:19 -0800690config SUPERHYWAY
691 tristate "SuperHyway Bus support"
692 depends on CPU_SUBTYPE_SH4_202
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693
Adrian McMenamin17be2d22007-09-21 15:55:55 +0900694config 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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705source "arch/sh/drivers/pci/Kconfig"
706
707source "drivers/pci/Kconfig"
708
709source "drivers/pcmcia/Kconfig"
710
711source "drivers/pci/hotplug/Kconfig"
712
713endmenu
714
715menu "Executable file formats"
716
717source "fs/Kconfig.binfmt"
718
719endmenu
720
Andriy Skulysh3aa770e2006-09-27 16:20:22 +0900721menu "Power management options (EXPERIMENTAL)"
Magnus Dammaf998a92008-12-04 22:45:12 +0900722depends on EXPERIMENTAL
Johannes Bergf4cb5702007-12-08 02:14:00 +0100723
Magnus Dammc6f17cb2008-12-04 22:45:20 +0900724source "kernel/power/Kconfig"
725
726source "drivers/cpuidle/Kconfig"
Andriy Skulysh3aa770e2006-09-27 16:20:22 +0900727
Andriy Skulysh3aa770e2006-09-27 16:20:22 +0900728endmenu
729
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700730source "net/Kconfig"
731
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732source "drivers/Kconfig"
733
734source "fs/Kconfig"
735
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736source "arch/sh/Kconfig.debug"
737
738source "security/Kconfig"
739
740source "crypto/Kconfig"
741
742source "lib/Kconfig"