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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
9 bool
10 default y
Paul Mundt7a440c92006-09-27 18:18:31 +090011 select EMBEDDED
Linus Torvalds1da177e2005-04-16 15:20:36 -070012 help
13 The SuperH is a RISC processor targeted for use in embedded systems
14 and consumer electronics; it was also used in the Sega Dreamcast
15 gaming console. The SuperH port has a home page at
16 <http://www.linux-sh.org/>.
17
Linus Torvalds1da177e2005-04-16 15:20:36 -070018config RWSEM_GENERIC_SPINLOCK
19 bool
20 default y
21
22config RWSEM_XCHGADD_ALGORITHM
23 bool
24
Akinobu Mitae2268c72006-03-26 01:39:35 -080025config GENERIC_FIND_NEXT_BIT
26 bool
27 default y
28
29config GENERIC_HWEIGHT
30 bool
31 default y
32
Linus Torvalds1da177e2005-04-16 15:20:36 -070033config GENERIC_HARDIRQS
34 bool
35 default y
36
37config GENERIC_IRQ_PROBE
38 bool
39 default y
40
41config GENERIC_CALIBRATE_DELAY
42 bool
43 default y
44
Paul Mundtcad82442006-01-16 22:14:19 -080045config GENERIC_IOMAP
46 bool
47
Paul Mundt45882142006-10-04 13:21:45 +090048config GENERIC_TIME
49 def_bool n
50
Paul Mundt0a9b0db2007-01-24 21:56:20 +090051config SYS_SUPPORTS_APM_EMULATION
52 bool
53
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +010054config ARCH_MAY_HAVE_PC_FDC
55 bool
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +010056
Paul Mundtafbfb522006-12-04 18:17:28 +090057config STACKTRACE_SUPPORT
58 bool
59 default y
60
61config LOCKDEP_SUPPORT
62 bool
63 default y
64
David Howellsf0d1b0b2006-12-08 02:37:49 -080065config ARCH_HAS_ILOG2_U32
66 bool
67 default n
68
69config ARCH_HAS_ILOG2_U64
70 bool
71 default n
72
Linus Torvalds1da177e2005-04-16 15:20:36 -070073source "init/Kconfig"
74
75menu "System type"
76
Paul Mundtbc8fb5d2006-09-27 18:09:34 +090077config SOLUTION_ENGINE
78 bool
79
Linus Torvalds1da177e2005-04-16 15:20:36 -070080choice
81 prompt "SuperH system type"
82 default SH_UNKNOWN
83
84config SH_SOLUTION_ENGINE
85 bool "SolutionEngine"
Paul Mundtbc8fb5d2006-09-27 18:09:34 +090086 select SOLUTION_ENGINE
Linus Torvalds1da177e2005-04-16 15:20:36 -070087 help
88 Select SolutionEngine if configuring for a Hitachi SH7709
89 or SH7750 evaluation board.
90
91config SH_7751_SOLUTION_ENGINE
92 bool "SolutionEngine7751"
Paul Mundtbc8fb5d2006-09-27 18:09:34 +090093 select SOLUTION_ENGINE
Paul Mundtcad82442006-01-16 22:14:19 -080094 select CPU_SUBTYPE_SH7751
Linus Torvalds1da177e2005-04-16 15:20:36 -070095 help
96 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
97 evaluation board.
98
99config SH_7300_SOLUTION_ENGINE
100 bool "SolutionEngine7300"
Paul Mundtbc8fb5d2006-09-27 18:09:34 +0900101 select SOLUTION_ENGINE
Paul Mundtcad82442006-01-16 22:14:19 -0800102 select CPU_SUBTYPE_SH7300
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103 help
Paul Mundtbc8fb5d2006-09-27 18:09:34 +0900104 Select 7300 SolutionEngine if configuring for a Hitachi
105 SH7300(SH-Mobile V) evaluation board.
106
107config SH_7343_SOLUTION_ENGINE
108 bool "SolutionEngine7343"
109 select SOLUTION_ENGINE
110 select CPU_SUBTYPE_SH7343
111 help
112 Select 7343 SolutionEngine if configuring for a Hitachi
113 SH7343 (SH-Mobile 3AS) evaluation board.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114
115config SH_73180_SOLUTION_ENGINE
116 bool "SolutionEngine73180"
Paul Mundtbc8fb5d2006-09-27 18:09:34 +0900117 select SOLUTION_ENGINE
118 select CPU_SUBTYPE_SH73180
119 help
120 Select 73180 SolutionEngine if configuring for a Hitachi
121 SH73180(SH-Mobile 3) evaluation board.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122
123config SH_7751_SYSTEMH
124 bool "SystemH7751R"
Paul Mundtcad82442006-01-16 22:14:19 -0800125 select CPU_SUBTYPE_SH7751R
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126 help
127 Select SystemH if you are configuring for a Renesas SystemH
128 7751R evaluation board.
129
Paul Mundtcad82442006-01-16 22:14:19 -0800130config SH_HP6XX
131 bool "HP6XX"
Paul Mundt0a9b0db2007-01-24 21:56:20 +0900132 select SYS_SUPPORTS_APM_EMULATION
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133 help
Paul Mundtcad82442006-01-16 22:14:19 -0800134 Select HP6XX if configuring for a HP jornada HP6xx.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135 More information (hardware only) at
136 <http://www.hp.com/jornada/>.
137
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138config SH_EC3104
139 bool "EC3104"
140 help
141 Select EC3104 if configuring for a system with an Eclipse
142 International EC3104 chip, e.g. the Harris AD2000.
143
144config SH_SATURN
145 bool "Saturn"
Paul Mundtcad82442006-01-16 22:14:19 -0800146 select CPU_SUBTYPE_SH7604
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147 help
148 Select Saturn if configuring for a SEGA Saturn.
149
150config SH_DREAMCAST
151 bool "Dreamcast"
Paul Mundtcad82442006-01-16 22:14:19 -0800152 select CPU_SUBTYPE_SH7091
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153 help
154 Select Dreamcast if configuring for a SEGA Dreamcast.
155 More information at
156 <http://www.m17n.org/linux-sh/dreamcast/>. There is a
157 Dreamcast project is at <http://linuxdc.sourceforge.net/>.
158
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159config SH_BIGSUR
160 bool "BigSur"
161
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162config SH_MPC1211
Paul Mundtcad82442006-01-16 22:14:19 -0800163 bool "Interface MPC1211"
164 help
165 CTP/PCI-SH02 is a CPU module computer that is produced
166 by Interface Corporation.
167 More information at <http://www.interface.co.jp>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168
169config SH_SH03
Paul Mundtcad82442006-01-16 22:14:19 -0800170 bool "Interface CTP/PCI-SH03"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171 help
Paul Mundtcad82442006-01-16 22:14:19 -0800172 CTP/PCI-SH03 is a CPU module computer that is produced
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173 by Interface Corporation.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 More information at <http://www.interface.co.jp>
175
176config SH_SECUREEDGE5410
177 bool "SecureEdge5410"
Paul Mundtcad82442006-01-16 22:14:19 -0800178 select CPU_SUBTYPE_SH7751R
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179 help
180 Select SecureEdge5410 if configuring for a SnapGear SH board.
181 This includes both the OEM SecureEdge products as well as the
182 SME product line.
183
184config SH_HS7751RVOIP
185 bool "HS7751RVOIP"
Paul Mundtcad82442006-01-16 22:14:19 -0800186 select CPU_SUBTYPE_SH7751R
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187 help
188 Select HS7751RVOIP if configuring for a Renesas Technology
189 Sales VoIP board.
190
Paul Mundt91b91d02006-09-27 18:08:33 +0900191config SH_7710VOIPGW
192 bool "SH7710-VOIP-GW"
193 select CPU_SUBTYPE_SH7710
194 help
195 Select this option to build a kernel for the SH7710 based
196 VOIP GW.
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198config SH_RTS7751R2D
199 bool "RTS7751R2D"
Paul Mundtcad82442006-01-16 22:14:19 -0800200 select CPU_SUBTYPE_SH7751R
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201 help
202 Select RTS7751R2D if configuring for a Renesas Technology
203 Sales SH-Graphics board.
204
Paul Mundtcad82442006-01-16 22:14:19 -0800205config SH_R7780RP
206 bool "R7780RP-1"
207 select CPU_SUBTYPE_SH7780
208 help
209 Select R7780RP-1 if configuring for a Renesas Solutions
210 HIGHLANDER board.
211
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212config SH_EDOSK7705
213 bool "EDOSK7705"
Paul Mundtcad82442006-01-16 22:14:19 -0800214 select CPU_SUBTYPE_SH7705
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215
216config SH_SH4202_MICRODEV
217 bool "SH4-202 MicroDev"
Paul Mundtcad82442006-01-16 22:14:19 -0800218 select CPU_SUBTYPE_SH4_202
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219 help
220 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
221 with an SH4-202 CPU.
222
Paul Mundtcad82442006-01-16 22:14:19 -0800223config SH_LANDISK
224 bool "LANDISK"
225 select CPU_SUBTYPE_SH7751R
226 help
227 I-O DATA DEVICE, INC. "LANDISK Series" support.
228
229config SH_TITAN
230 bool "TITAN"
231 select CPU_SUBTYPE_SH7751R
232 help
233 Select Titan if you are configuring for a Nimble Microsystems
234 NetEngine NP51R.
235
Takashi YOSHII51e22e72006-09-27 17:41:31 +0900236config SH_SHMIN
237 bool "SHMIN"
238 select CPU_SUBTYPE_SH7706
239 help
Matt LaPlante3cb2fcc2006-11-30 05:22:59 +0100240 Select SHMIN if configuring for the SHMIN board.
Takashi YOSHII51e22e72006-09-27 17:41:31 +0900241
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900242config SH_7206_SOLUTION_ENGINE
243 bool "SolutionEngine7206"
244 select CPU_SUBTYPE_SH7206
245 help
246 Select 7206 SolutionEngine if configuring for a Hitachi SH7206
247 evaluation board.
248
249config SH_7619_SOLUTION_ENGINE
250 bool "SolutionEngine7619"
251 select CPU_SUBTYPE_SH7619
252 help
253 Select 7619 SolutionEngine if configuring for a Hitachi SH7619
254 evaluation board.
255
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256config SH_UNKNOWN
257 bool "BareCPU"
258 help
259 "Bare CPU" aka "unknown" means an SH-based system which is not one
260 of the specific ones mentioned above, which means you need to enter
261 all sorts of stuff like CONFIG_MEMORY_START because the config
262 system doesn't already know what it is. You get a machine vector
263 without any platform-specific code in it, so things like the RTC may
264 not work.
265
266 This option is for the early stages of porting to a new machine.
267
268endchoice
269
Paul Mundtcad82442006-01-16 22:14:19 -0800270source "arch/sh/mm/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272config CF_ENABLER
273 bool "Compact Flash Enabler support"
Paul Mundt5a4053b2006-09-27 18:00:19 +0900274 depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275 ---help---
276 Compact Flash is a small, removable mass storage device introduced
277 in 1994 originally as a PCMCIA device. If you say `Y' here, you
278 compile in support for Compact Flash devices directly connected to
279 a SuperH processor. A Compact Flash FAQ is available at
280 <http://www.compactflash.org/faqs/faq.htm>.
281
282 If your board has "Directly Connected" CompactFlash at area 5 or 6,
283 you may want to enable this option. Then, you can use CF as
284 primary IDE drive (only tested for SanDisk).
285
286 If in doubt, select 'N'.
287
288choice
289 prompt "Compact Flash Connection Area"
290 depends on CF_ENABLER
291 default CF_AREA6
292
293config CF_AREA5
294 bool "Area5"
295 help
296 If your board has "Directly Connected" CompactFlash, You should
297 select the area where your CF is connected to.
298
299 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
300 - "Area6" if it is connected to Area 6 (0x18000000)
301
Paul Mundt5a4053b2006-09-27 18:00:19 +0900302 "Area6" will work for most boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303
304config CF_AREA6
305 bool "Area6"
306
307endchoice
308
309config CF_BASE_ADDR
310 hex
311 depends on CF_ENABLER
312 default "0xb8000000" if CF_AREA6
313 default "0xb4000000" if CF_AREA5
314
Paul Mundtcad82442006-01-16 22:14:19 -0800315menu "Processor features"
316
Paul Mundt53644082006-11-21 11:12:19 +0900317choice
318 prompt "Endianess selection"
319 default CPU_LITTLE_ENDIAN
Paul Mundtcad82442006-01-16 22:14:19 -0800320 help
321 Some SuperH machines can be configured for either little or big
Paul Mundt53644082006-11-21 11:12:19 +0900322 endian byte order. These modes require different kernels.
323
324config CPU_LITTLE_ENDIAN
325 bool "Little Endian"
326
327config CPU_BIG_ENDIAN
328 bool "Big Endian"
329
330endchoice
Paul Mundtcad82442006-01-16 22:14:19 -0800331
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332config SH_FPU
333 bool "FPU support"
334 depends on !CPU_SH3
335 default y
336 help
337 Selecting this option will enable support for SH processors that
338 have FPU units (ie, SH77xx).
339
340 This option must be set in order to enable the FPU.
341
Takashi YOSHII4b565682006-09-27 17:15:32 +0900342config SH_FPU_EMU
343 bool "FPU emulation support"
344 depends on !SH_FPU && EXPERIMENTAL
345 default n
346 help
347 Selecting this option will enable support for software FPU emulation.
348 Most SH-3 users will want to say Y here, whereas most SH-4 users will
349 want to say N.
350
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351config SH_DSP
352 bool "DSP support"
Paul Mundte5723e02006-09-27 17:38:11 +0900353 default y if SH4AL_DSP || !CPU_SH4
354 default n
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355 help
356 Selecting this option will enable support for SH processors that
Paul Mundte5723e02006-09-27 17:38:11 +0900357 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358
359 This option must be set in order to enable the DSP.
360
361config SH_ADC
362 bool "ADC support"
363 depends on CPU_SH3
364 default y
365 help
366 Selecting this option will allow the Linux kernel to use SH3 on-chip
367 ADC module.
368
369 If unsure, say N.
370
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371config SH_STORE_QUEUES
372 bool "Support for Store Queues"
373 depends on CPU_SH4
374 help
375 Selecting this option will enable an in-kernel API for manipulating
376 the store queues integrated in the SH-4 processors.
377
Paul Mundtcad82442006-01-16 22:14:19 -0800378config CPU_HAS_INTEVT
379 bool
380
381config CPU_HAS_PINT_IRQ
382 bool
383
Paul Mundtba463932006-09-27 18:01:16 +0900384config CPU_HAS_MASKREG_IRQ
385 bool
386
Paul Mundtcad82442006-01-16 22:14:19 -0800387config CPU_HAS_INTC2_IRQ
388 bool
389
Jamie Lenehanea0f8fe2006-12-06 12:05:02 +0900390config CPU_HAS_IPR_IRQ
391 bool
392
Paul Mundtcad82442006-01-16 22:14:19 -0800393config CPU_HAS_SR_RB
394 bool "CPU has SR.RB"
395 depends on CPU_SH3 || CPU_SH4
396 default y
397 help
398 This will enable the use of SR.RB register bank usage. Processors
399 that are lacking this bit must have another method in place for
400 accomplishing what is taken care of by the banked registers.
401
402 See <file:Documentation/sh/register-banks.txt> for further
403 information on SR.RB and register banking in the kernel in general.
404
Stuart Menefy9b3a53a2006-11-24 11:42:24 +0900405config CPU_HAS_PTEA
406 bool
407
Paul Mundtcad82442006-01-16 22:14:19 -0800408endmenu
409
410menu "Timer support"
Paul Mundt45882142006-10-04 13:21:45 +0900411depends on !GENERIC_TIME
Paul Mundtcad82442006-01-16 22:14:19 -0800412
413config SH_TMU
414 bool "TMU timer support"
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900415 depends on CPU_SH3 || CPU_SH4
Paul Mundtcad82442006-01-16 22:14:19 -0800416 default y
417 help
418 This enables the use of the TMU as the system timer.
419
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900420config SH_CMT
421 bool "CMT timer support"
422 depends on CPU_SH2
423 default y
424 help
425 This enables the use of the CMT as the system timer.
426
427config SH_MTU2
428 bool "MTU2 timer support"
429 depends on CPU_SH2A
430 default n
431 help
432 This enables the use of the MTU2 as the system timer.
433
Paul Mundtcad82442006-01-16 22:14:19 -0800434endmenu
435
Paul Mundte8fb67f2006-09-27 13:56:28 +0900436source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
Paul Mundtcad82442006-01-16 22:14:19 -0800437
Paul Mundt36efc352006-09-27 14:02:09 +0900438source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
Paul Mundtcad82442006-01-16 22:14:19 -0800439
Paul Mundt5283ecb2006-09-27 15:59:17 +0900440source "arch/sh/boards/renesas/r7780rp/Kconfig"
441
Paul Mundt417528a2006-11-20 11:18:30 +0900442config SH_TIMER_IRQ
443 int
444 default "28" if CPU_SUBTYPE_SH7780
445 default "86" if CPU_SUBTYPE_SH7619
446 default "140" if CPU_SUBTYPE_SH7206
447 default "16"
448
Paul Mundtbd156142006-12-01 13:23:47 +0900449config NO_IDLE_HZ
450 bool "Dynamic tick timer"
451 help
452 Select this option if you want to disable continuous timer ticks
453 and have them programmed to occur as required. This option saves
454 power as the system can remain in idle state for longer.
455
456 By default dynamic tick is disabled during the boot, and can be
457 manually enabled with:
458
459 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
460
461 Alternatively, if you want dynamic tick automatically enabled
462 during boot, pass "dyntick=enable" via the kernel command string.
463
464 Please note that dynamic tick may affect the accuracy of
465 timekeeping on some platforms depending on the implementation.
466
Paul Mundtcad82442006-01-16 22:14:19 -0800467config SH_PCLK_FREQ
468 int "Peripheral clock frequency (in Hz)"
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900469 default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
470 default "31250000" if CPU_SUBTYPE_SH7619
471 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
472 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
473 CPU_SUBTYPE_SH7206
Paul Mundtcad82442006-01-16 22:14:19 -0800474 default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
475 default "60000000" if CPU_SUBTYPE_SH7751
Paul Mundtcad82442006-01-16 22:14:19 -0800476 default "66000000" if CPU_SUBTYPE_SH4_202
477 help
478 This option is used to specify the peripheral clock frequency.
479 This is necessary for determining the reference clock value on
480 platforms lacking an RTC.
481
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900482config SH_CLK_MD
483 int "CPU Mode Pin Setting"
484 depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
485 help
Yoshinori Sato11cbb702006-12-07 18:07:27 +0900486 MD2 - MD0 pin setting.
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900487
Paul Mundtcad82442006-01-16 22:14:19 -0800488menu "CPU Frequency scaling"
489
490source "drivers/cpufreq/Kconfig"
491
492config SH_CPU_FREQ
493 tristate "SuperH CPU Frequency driver"
494 depends on CPU_FREQ
495 select CPU_FREQ_TABLE
496 help
497 This adds the cpufreq driver for SuperH. At present, only
498 the SH-4 is supported.
499
500 For details, take a look at <file:Documentation/cpu-freq>.
501
502 If unsure, say N.
503
504endmenu
505
506source "arch/sh/drivers/dma/Kconfig"
507
508source "arch/sh/cchips/Kconfig"
509
510config HEARTBEAT
511 bool "Heartbeat LED"
Paul Mundt5a4053b2006-09-27 18:00:19 +0900512 depends on SH_MPC1211 || SH_SH03 || \
Paul Mundtbc8fb5d2006-09-27 18:09:34 +0900513 SH_BIGSUR || SOLUTION_ENGINE || \
Paul Mundtcad82442006-01-16 22:14:19 -0800514 SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK
515 help
516 Use the power-on LED on your machine as a load meter. The exact
517 behavior is platform-dependent, but normally the flash frequency is
518 a hyperbolic function of the 5-minute load average.
519
Paul Mundt9f5e8ee2006-11-24 11:22:57 +0900520source "arch/sh/drivers/Kconfig"
521
Paul Mundtcad82442006-01-16 22:14:19 -0800522endmenu
523
524config ISA_DMA_API
525 bool
Adrian Bunk05efc672006-02-17 13:52:42 -0800526 depends on SH_MPC1211
Paul Mundtcad82442006-01-16 22:14:19 -0800527 default y
528
529menu "Kernel features"
530
Paul Mundt91b91d02006-09-27 18:08:33 +0900531source kernel/Kconfig.hz
532
Paul Mundtcad82442006-01-16 22:14:19 -0800533config KEXEC
534 bool "kexec system call (EXPERIMENTAL)"
535 depends on EXPERIMENTAL
536 help
537 kexec is a system call that implements the ability to shutdown your
538 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400539 but it is independent of the system firmware. And like a reboot
Paul Mundtcad82442006-01-16 22:14:19 -0800540 you can start any kernel with it, not just Linux.
541
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400542 The name comes from the similarity to the exec system call.
Paul Mundtcad82442006-01-16 22:14:19 -0800543
544 It is an ongoing process to be certain the hardware in a machine
545 is properly shutdown, so do not be surprised if this code does not
546 initially work for you. It may help to enable device hotplugging
547 support. As of this writing the exact hardware interface is
548 strongly in flux, so no good recommendation can be made.
549
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550config SMP
551 bool "Symmetric multi-processing support"
552 ---help---
553 This enables support for systems with more than one CPU. If you have
554 a system with only one CPU, like most personal computers, say N. If
555 you have a system with more than one CPU, say Y.
556
557 If you say N here, the kernel will run on single and multiprocessor
558 machines, but will use only one CPU of a multiprocessor machine. If
559 you say Y here, the kernel will run on many, but not all,
560 singleprocessor machines. On a singleprocessor machine, the kernel
561 will run faster if you say N here.
562
563 People using multiprocessor machines who say Y here should also say
564 Y to "Enhanced Real Time Clock Support", below.
565
566 See also the <file:Documentation/smp.txt>,
567 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
568 at <http://www.tldp.org/docs.html#howto>.
569
570 If you don't know what to do here, say N.
571
572config NR_CPUS
573 int "Maximum number of CPUs (2-32)"
574 range 2 32
575 depends on SMP
576 default "2"
577 help
578 This allows you to specify the maximum number of CPUs which this
579 kernel will support. The maximum supported value is 32 and the
580 minimum value which makes sense is 2.
581
582 This is purely to save memory - each supported CPU adds
583 approximately eight kilobytes to the kernel image.
584
Paul Mundt91b91d02006-09-27 18:08:33 +0900585source "kernel/Kconfig.preempt"
586
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700587config NODES_SHIFT
588 int
589 default "1"
590 depends on NEED_MULTIPLE_NODES
591
Paul Mundtcad82442006-01-16 22:14:19 -0800592endmenu
593
594menu "Boot options"
595
596config ZERO_PAGE_OFFSET
597 hex "Zero page offset"
598 default "0x00004000" if SH_MPC1211 || SH_SH03
Paul Mundt7a847f82006-12-26 15:29:19 +0900599 default "0x00010000" if PAGE_SIZE_64KB
600 default "0x00002000" if PAGE_SIZE_8KB
Paul Mundtcad82442006-01-16 22:14:19 -0800601 default "0x00001000"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602 help
Paul Mundtcad82442006-01-16 22:14:19 -0800603 This sets the default offset of zero page.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604
Paul Mundtcad82442006-01-16 22:14:19 -0800605config BOOT_LINK_OFFSET
606 hex "Link address offset for booting"
607 default "0x00800000"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608 help
Paul Mundtcad82442006-01-16 22:14:19 -0800609 This option allows you to set the link address offset of the zImage.
610 This can be useful if you are on a board which has a small amount of
611 memory.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612
Paul Mundtcad82442006-01-16 22:14:19 -0800613config UBC_WAKEUP
614 bool "Wakeup UBC on startup"
615 help
616 Selecting this option will wakeup the User Break Controller (UBC) on
617 startup. Although the UBC is left in an awake state when the processor
618 comes up, some boot loaders misbehave by putting the UBC to sleep in a
619 power saving state, which causes issues with things like ptrace().
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620
621 If unsure, say N.
622
Paul Mundtcad82442006-01-16 22:14:19 -0800623config CMDLINE_BOOL
624 bool "Default bootloader kernel arguments"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700625
Paul Mundtcad82442006-01-16 22:14:19 -0800626config CMDLINE
627 string "Initial kernel command string"
628 depends on CMDLINE_BOOL
629 default "console=ttySC1,115200"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630
631endmenu
632
Paul Mundtcad82442006-01-16 22:14:19 -0800633menu "Bus options"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634
635# Even on SuperH devices which don't have an ISA bus,
636# this variable helps the PCMCIA modules handle
637# IRQ requesting properly -- Greg Banks.
638#
639# Though we're generally not interested in it when
640# we're not using PCMCIA, so we make it dependent on
641# PCMCIA outright. -- PFM.
642config ISA
643 bool
Paul Mundtcad82442006-01-16 22:14:19 -0800644 default y if PCMCIA
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645 help
646 Find out whether you have ISA slots on your motherboard. ISA is the
647 name of a bus system, i.e. the way the CPU talks to the other stuff
648 inside your box. Other bus systems are PCI, EISA, MicroChannel
649 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
650 newer boards don't support it. If you have ISA, say Y, otherwise N.
651
652config EISA
653 bool
654 ---help---
655 The Extended Industry Standard Architecture (EISA) bus was
656 developed as an open alternative to the IBM MicroChannel bus.
657
658 The EISA bus provided some of the features of the IBM MicroChannel
659 bus while maintaining backward compatibility with cards made for
660 the older ISA bus. The EISA bus saw limited use between 1988 and
661 1995 when it was made obsolete by the PCI bus.
662
663 Say Y here if you are building a kernel for an EISA-based machine.
664
665 Otherwise, say N.
666
667config MCA
668 bool
669 help
670 MicroChannel Architecture is found in some IBM PS/2 machines and
671 laptops. It is a bus system similar to PCI or ISA. See
672 <file:Documentation/mca.txt> (and especially the web page given
673 there) before attempting to build an MCA bus kernel.
674
675config SBUS
676 bool
677
Paul Mundtcad82442006-01-16 22:14:19 -0800678config SUPERHYWAY
679 tristate "SuperHyway Bus support"
680 depends on CPU_SUBTYPE_SH4_202
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681
682source "arch/sh/drivers/pci/Kconfig"
683
684source "drivers/pci/Kconfig"
685
686source "drivers/pcmcia/Kconfig"
687
688source "drivers/pci/hotplug/Kconfig"
689
690endmenu
691
692menu "Executable file formats"
693
694source "fs/Kconfig.binfmt"
695
696endmenu
697
Andriy Skulysh3aa770e2006-09-27 16:20:22 +0900698menu "Power management options (EXPERIMENTAL)"
699depends on EXPERIMENTAL
700
701source kernel/power/Kconfig
702
Andriy Skulysh3aa770e2006-09-27 16:20:22 +0900703endmenu
704
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700705source "net/Kconfig"
706
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707source "drivers/Kconfig"
708
709source "fs/Kconfig"
710
711source "arch/sh/oprofile/Kconfig"
712
713source "arch/sh/Kconfig.debug"
714
715source "security/Kconfig"
716
717source "crypto/Kconfig"
718
719source "lib/Kconfig"