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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
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +010051config ARCH_MAY_HAVE_PC_FDC
52 bool
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +010053
Linus Torvalds1da177e2005-04-16 15:20:36 -070054source "init/Kconfig"
55
56menu "System type"
57
Paul Mundtbc8fb5d2006-09-27 18:09:34 +090058config SOLUTION_ENGINE
59 bool
60
Linus Torvalds1da177e2005-04-16 15:20:36 -070061choice
62 prompt "SuperH system type"
63 default SH_UNKNOWN
64
65config SH_SOLUTION_ENGINE
66 bool "SolutionEngine"
Paul Mundtbc8fb5d2006-09-27 18:09:34 +090067 select SOLUTION_ENGINE
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 help
69 Select SolutionEngine if configuring for a Hitachi SH7709
70 or SH7750 evaluation board.
71
72config SH_7751_SOLUTION_ENGINE
73 bool "SolutionEngine7751"
Paul Mundtbc8fb5d2006-09-27 18:09:34 +090074 select SOLUTION_ENGINE
Paul Mundtcad82442006-01-16 22:14:19 -080075 select CPU_SUBTYPE_SH7751
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 help
77 Select 7751 SolutionEngine if configuring for a Hitachi SH7751
78 evaluation board.
79
80config SH_7300_SOLUTION_ENGINE
81 bool "SolutionEngine7300"
Paul Mundtbc8fb5d2006-09-27 18:09:34 +090082 select SOLUTION_ENGINE
Paul Mundtcad82442006-01-16 22:14:19 -080083 select CPU_SUBTYPE_SH7300
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 help
Paul Mundtbc8fb5d2006-09-27 18:09:34 +090085 Select 7300 SolutionEngine if configuring for a Hitachi
86 SH7300(SH-Mobile V) evaluation board.
87
88config SH_7343_SOLUTION_ENGINE
89 bool "SolutionEngine7343"
90 select SOLUTION_ENGINE
91 select CPU_SUBTYPE_SH7343
92 help
93 Select 7343 SolutionEngine if configuring for a Hitachi
94 SH7343 (SH-Mobile 3AS) evaluation board.
Linus Torvalds1da177e2005-04-16 15:20:36 -070095
96config SH_73180_SOLUTION_ENGINE
97 bool "SolutionEngine73180"
Paul Mundtbc8fb5d2006-09-27 18:09:34 +090098 select SOLUTION_ENGINE
99 select CPU_SUBTYPE_SH73180
100 help
101 Select 73180 SolutionEngine if configuring for a Hitachi
102 SH73180(SH-Mobile 3) evaluation board.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103
104config SH_7751_SYSTEMH
105 bool "SystemH7751R"
Paul Mundtcad82442006-01-16 22:14:19 -0800106 select CPU_SUBTYPE_SH7751R
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107 help
108 Select SystemH if you are configuring for a Renesas SystemH
109 7751R evaluation board.
110
Paul Mundtcad82442006-01-16 22:14:19 -0800111config SH_HP6XX
112 bool "HP6XX"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113 help
Paul Mundtcad82442006-01-16 22:14:19 -0800114 Select HP6XX if configuring for a HP jornada HP6xx.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115 More information (hardware only) at
116 <http://www.hp.com/jornada/>.
117
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118config SH_EC3104
119 bool "EC3104"
120 help
121 Select EC3104 if configuring for a system with an Eclipse
122 International EC3104 chip, e.g. the Harris AD2000.
123
124config SH_SATURN
125 bool "Saturn"
Paul Mundtcad82442006-01-16 22:14:19 -0800126 select CPU_SUBTYPE_SH7604
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127 help
128 Select Saturn if configuring for a SEGA Saturn.
129
130config SH_DREAMCAST
131 bool "Dreamcast"
Paul Mundtcad82442006-01-16 22:14:19 -0800132 select CPU_SUBTYPE_SH7091
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133 help
134 Select Dreamcast if configuring for a SEGA Dreamcast.
135 More information at
136 <http://www.m17n.org/linux-sh/dreamcast/>. There is a
137 Dreamcast project is at <http://linuxdc.sourceforge.net/>.
138
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139config SH_BIGSUR
140 bool "BigSur"
141
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142config SH_MPC1211
Paul Mundtcad82442006-01-16 22:14:19 -0800143 bool "Interface MPC1211"
144 help
145 CTP/PCI-SH02 is a CPU module computer that is produced
146 by Interface Corporation.
147 More information at <http://www.interface.co.jp>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148
149config SH_SH03
Paul Mundtcad82442006-01-16 22:14:19 -0800150 bool "Interface CTP/PCI-SH03"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 help
Paul Mundtcad82442006-01-16 22:14:19 -0800152 CTP/PCI-SH03 is a CPU module computer that is produced
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153 by Interface Corporation.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154 More information at <http://www.interface.co.jp>
155
156config SH_SECUREEDGE5410
157 bool "SecureEdge5410"
Paul Mundtcad82442006-01-16 22:14:19 -0800158 select CPU_SUBTYPE_SH7751R
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 help
160 Select SecureEdge5410 if configuring for a SnapGear SH board.
161 This includes both the OEM SecureEdge products as well as the
162 SME product line.
163
164config SH_HS7751RVOIP
165 bool "HS7751RVOIP"
Paul Mundtcad82442006-01-16 22:14:19 -0800166 select CPU_SUBTYPE_SH7751R
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167 help
168 Select HS7751RVOIP if configuring for a Renesas Technology
169 Sales VoIP board.
170
Paul Mundt91b91d02006-09-27 18:08:33 +0900171config SH_7710VOIPGW
172 bool "SH7710-VOIP-GW"
173 select CPU_SUBTYPE_SH7710
174 help
175 Select this option to build a kernel for the SH7710 based
176 VOIP GW.
177
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178config SH_RTS7751R2D
179 bool "RTS7751R2D"
Paul Mundtcad82442006-01-16 22:14:19 -0800180 select CPU_SUBTYPE_SH7751R
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 help
182 Select RTS7751R2D if configuring for a Renesas Technology
183 Sales SH-Graphics board.
184
Paul Mundtcad82442006-01-16 22:14:19 -0800185config SH_R7780RP
186 bool "R7780RP-1"
187 select CPU_SUBTYPE_SH7780
188 help
189 Select R7780RP-1 if configuring for a Renesas Solutions
190 HIGHLANDER board.
191
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192config SH_EDOSK7705
193 bool "EDOSK7705"
Paul Mundtcad82442006-01-16 22:14:19 -0800194 select CPU_SUBTYPE_SH7705
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195
196config SH_SH4202_MICRODEV
197 bool "SH4-202 MicroDev"
Paul Mundtcad82442006-01-16 22:14:19 -0800198 select CPU_SUBTYPE_SH4_202
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199 help
200 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
201 with an SH4-202 CPU.
202
Paul Mundtcad82442006-01-16 22:14:19 -0800203config SH_LANDISK
204 bool "LANDISK"
205 select CPU_SUBTYPE_SH7751R
206 help
207 I-O DATA DEVICE, INC. "LANDISK Series" support.
208
209config SH_TITAN
210 bool "TITAN"
211 select CPU_SUBTYPE_SH7751R
212 help
213 Select Titan if you are configuring for a Nimble Microsystems
214 NetEngine NP51R.
215
Takashi YOSHII51e22e72006-09-27 17:41:31 +0900216config SH_SHMIN
217 bool "SHMIN"
218 select CPU_SUBTYPE_SH7706
219 help
Matt LaPlante3cb2fcc2006-11-30 05:22:59 +0100220 Select SHMIN if configuring for the SHMIN board.
Takashi YOSHII51e22e72006-09-27 17:41:31 +0900221
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900222config SH_7206_SOLUTION_ENGINE
223 bool "SolutionEngine7206"
224 select CPU_SUBTYPE_SH7206
225 help
226 Select 7206 SolutionEngine if configuring for a Hitachi SH7206
227 evaluation board.
228
229config SH_7619_SOLUTION_ENGINE
230 bool "SolutionEngine7619"
231 select CPU_SUBTYPE_SH7619
232 help
233 Select 7619 SolutionEngine if configuring for a Hitachi SH7619
234 evaluation board.
235
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236config SH_UNKNOWN
237 bool "BareCPU"
238 help
239 "Bare CPU" aka "unknown" means an SH-based system which is not one
240 of the specific ones mentioned above, which means you need to enter
241 all sorts of stuff like CONFIG_MEMORY_START because the config
242 system doesn't already know what it is. You get a machine vector
243 without any platform-specific code in it, so things like the RTC may
244 not work.
245
246 This option is for the early stages of porting to a new machine.
247
248endchoice
249
Paul Mundtcad82442006-01-16 22:14:19 -0800250source "arch/sh/mm/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252config CF_ENABLER
253 bool "Compact Flash Enabler support"
Paul Mundt5a4053b2006-09-27 18:00:19 +0900254 depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255 ---help---
256 Compact Flash is a small, removable mass storage device introduced
257 in 1994 originally as a PCMCIA device. If you say `Y' here, you
258 compile in support for Compact Flash devices directly connected to
259 a SuperH processor. A Compact Flash FAQ is available at
260 <http://www.compactflash.org/faqs/faq.htm>.
261
262 If your board has "Directly Connected" CompactFlash at area 5 or 6,
263 you may want to enable this option. Then, you can use CF as
264 primary IDE drive (only tested for SanDisk).
265
266 If in doubt, select 'N'.
267
268choice
269 prompt "Compact Flash Connection Area"
270 depends on CF_ENABLER
271 default CF_AREA6
272
273config CF_AREA5
274 bool "Area5"
275 help
276 If your board has "Directly Connected" CompactFlash, You should
277 select the area where your CF is connected to.
278
279 - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
280 - "Area6" if it is connected to Area 6 (0x18000000)
281
Paul Mundt5a4053b2006-09-27 18:00:19 +0900282 "Area6" will work for most boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283
284config CF_AREA6
285 bool "Area6"
286
287endchoice
288
289config CF_BASE_ADDR
290 hex
291 depends on CF_ENABLER
292 default "0xb8000000" if CF_AREA6
293 default "0xb4000000" if CF_AREA5
294
Paul Mundtcad82442006-01-16 22:14:19 -0800295menu "Processor features"
296
Paul Mundt53644082006-11-21 11:12:19 +0900297choice
298 prompt "Endianess selection"
299 default CPU_LITTLE_ENDIAN
Paul Mundtcad82442006-01-16 22:14:19 -0800300 help
301 Some SuperH machines can be configured for either little or big
Paul Mundt53644082006-11-21 11:12:19 +0900302 endian byte order. These modes require different kernels.
303
304config CPU_LITTLE_ENDIAN
305 bool "Little Endian"
306
307config CPU_BIG_ENDIAN
308 bool "Big Endian"
309
310endchoice
Paul Mundtcad82442006-01-16 22:14:19 -0800311
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312config SH_FPU
313 bool "FPU support"
314 depends on !CPU_SH3
315 default y
316 help
317 Selecting this option will enable support for SH processors that
318 have FPU units (ie, SH77xx).
319
320 This option must be set in order to enable the FPU.
321
Takashi YOSHII4b565682006-09-27 17:15:32 +0900322config SH_FPU_EMU
323 bool "FPU emulation support"
324 depends on !SH_FPU && EXPERIMENTAL
325 default n
326 help
327 Selecting this option will enable support for software FPU emulation.
328 Most SH-3 users will want to say Y here, whereas most SH-4 users will
329 want to say N.
330
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331config SH_DSP
332 bool "DSP support"
Paul Mundte5723e02006-09-27 17:38:11 +0900333 default y if SH4AL_DSP || !CPU_SH4
334 default n
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 help
336 Selecting this option will enable support for SH processors that
Paul Mundte5723e02006-09-27 17:38:11 +0900337 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338
339 This option must be set in order to enable the DSP.
340
341config SH_ADC
342 bool "ADC support"
343 depends on CPU_SH3
344 default y
345 help
346 Selecting this option will allow the Linux kernel to use SH3 on-chip
347 ADC module.
348
349 If unsure, say N.
350
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351config SH_STORE_QUEUES
352 bool "Support for Store Queues"
353 depends on CPU_SH4
354 help
355 Selecting this option will enable an in-kernel API for manipulating
356 the store queues integrated in the SH-4 processors.
357
Paul Mundtcad82442006-01-16 22:14:19 -0800358config CPU_HAS_INTEVT
359 bool
360
361config CPU_HAS_PINT_IRQ
362 bool
363
Paul Mundtba463932006-09-27 18:01:16 +0900364config CPU_HAS_MASKREG_IRQ
365 bool
366
Paul Mundtcad82442006-01-16 22:14:19 -0800367config CPU_HAS_INTC2_IRQ
368 bool
369
370config CPU_HAS_SR_RB
371 bool "CPU has SR.RB"
372 depends on CPU_SH3 || CPU_SH4
373 default y
374 help
375 This will enable the use of SR.RB register bank usage. Processors
376 that are lacking this bit must have another method in place for
377 accomplishing what is taken care of by the banked registers.
378
379 See <file:Documentation/sh/register-banks.txt> for further
380 information on SR.RB and register banking in the kernel in general.
381
Stuart Menefy9b3a53a2006-11-24 11:42:24 +0900382config CPU_HAS_PTEA
383 bool
384
Paul Mundtcad82442006-01-16 22:14:19 -0800385endmenu
386
387menu "Timer support"
Paul Mundt45882142006-10-04 13:21:45 +0900388depends on !GENERIC_TIME
Paul Mundtcad82442006-01-16 22:14:19 -0800389
390config SH_TMU
391 bool "TMU timer support"
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900392 depends on CPU_SH3 || CPU_SH4
Paul Mundtcad82442006-01-16 22:14:19 -0800393 default y
394 help
395 This enables the use of the TMU as the system timer.
396
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900397config SH_CMT
398 bool "CMT timer support"
399 depends on CPU_SH2
400 default y
401 help
402 This enables the use of the CMT as the system timer.
403
404config SH_MTU2
405 bool "MTU2 timer support"
406 depends on CPU_SH2A
407 default n
408 help
409 This enables the use of the MTU2 as the system timer.
410
Paul Mundtcad82442006-01-16 22:14:19 -0800411endmenu
412
Paul Mundte8fb67f2006-09-27 13:56:28 +0900413source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
Paul Mundtcad82442006-01-16 22:14:19 -0800414
Paul Mundt36efc352006-09-27 14:02:09 +0900415source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
Paul Mundtcad82442006-01-16 22:14:19 -0800416
Paul Mundt5283ecb2006-09-27 15:59:17 +0900417source "arch/sh/boards/renesas/r7780rp/Kconfig"
418
Paul Mundt417528a2006-11-20 11:18:30 +0900419config SH_TIMER_IRQ
420 int
421 default "28" if CPU_SUBTYPE_SH7780
422 default "86" if CPU_SUBTYPE_SH7619
423 default "140" if CPU_SUBTYPE_SH7206
424 default "16"
425
Paul Mundtbd156142006-12-01 13:23:47 +0900426config NO_IDLE_HZ
427 bool "Dynamic tick timer"
428 help
429 Select this option if you want to disable continuous timer ticks
430 and have them programmed to occur as required. This option saves
431 power as the system can remain in idle state for longer.
432
433 By default dynamic tick is disabled during the boot, and can be
434 manually enabled with:
435
436 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
437
438 Alternatively, if you want dynamic tick automatically enabled
439 during boot, pass "dyntick=enable" via the kernel command string.
440
441 Please note that dynamic tick may affect the accuracy of
442 timekeeping on some platforms depending on the implementation.
443
Paul Mundtcad82442006-01-16 22:14:19 -0800444config SH_PCLK_FREQ
445 int "Peripheral clock frequency (in Hz)"
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900446 default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
447 default "31250000" if CPU_SUBTYPE_SH7619
448 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
449 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
450 CPU_SUBTYPE_SH7206
Paul Mundtcad82442006-01-16 22:14:19 -0800451 default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
452 default "60000000" if CPU_SUBTYPE_SH7751
Paul Mundtcad82442006-01-16 22:14:19 -0800453 default "66000000" if CPU_SUBTYPE_SH4_202
454 help
455 This option is used to specify the peripheral clock frequency.
456 This is necessary for determining the reference clock value on
457 platforms lacking an RTC.
458
Yoshinori Sato9d4436a2006-11-05 15:40:13 +0900459config SH_CLK_MD
460 int "CPU Mode Pin Setting"
461 depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
462 help
463 MD2 - MD0 Setting.
464
Paul Mundtcad82442006-01-16 22:14:19 -0800465menu "CPU Frequency scaling"
466
467source "drivers/cpufreq/Kconfig"
468
469config SH_CPU_FREQ
470 tristate "SuperH CPU Frequency driver"
471 depends on CPU_FREQ
472 select CPU_FREQ_TABLE
473 help
474 This adds the cpufreq driver for SuperH. At present, only
475 the SH-4 is supported.
476
477 For details, take a look at <file:Documentation/cpu-freq>.
478
479 If unsure, say N.
480
481endmenu
482
483source "arch/sh/drivers/dma/Kconfig"
484
485source "arch/sh/cchips/Kconfig"
486
487config HEARTBEAT
488 bool "Heartbeat LED"
Paul Mundt5a4053b2006-09-27 18:00:19 +0900489 depends on SH_MPC1211 || SH_SH03 || \
Paul Mundtbc8fb5d2006-09-27 18:09:34 +0900490 SH_BIGSUR || SOLUTION_ENGINE || \
Paul Mundtcad82442006-01-16 22:14:19 -0800491 SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK
492 help
493 Use the power-on LED on your machine as a load meter. The exact
494 behavior is platform-dependent, but normally the flash frequency is
495 a hyperbolic function of the 5-minute load average.
496
Paul Mundt9f5e8ee2006-11-24 11:22:57 +0900497source "arch/sh/drivers/Kconfig"
498
Paul Mundtcad82442006-01-16 22:14:19 -0800499endmenu
500
501config ISA_DMA_API
502 bool
Adrian Bunk05efc672006-02-17 13:52:42 -0800503 depends on SH_MPC1211
Paul Mundtcad82442006-01-16 22:14:19 -0800504 default y
505
506menu "Kernel features"
507
Paul Mundt91b91d02006-09-27 18:08:33 +0900508source kernel/Kconfig.hz
509
Paul Mundtcad82442006-01-16 22:14:19 -0800510config KEXEC
511 bool "kexec system call (EXPERIMENTAL)"
512 depends on EXPERIMENTAL
513 help
514 kexec is a system call that implements the ability to shutdown your
515 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400516 but it is independent of the system firmware. And like a reboot
Paul Mundtcad82442006-01-16 22:14:19 -0800517 you can start any kernel with it, not just Linux.
518
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400519 The name comes from the similarity to the exec system call.
Paul Mundtcad82442006-01-16 22:14:19 -0800520
521 It is an ongoing process to be certain the hardware in a machine
522 is properly shutdown, so do not be surprised if this code does not
523 initially work for you. It may help to enable device hotplugging
524 support. As of this writing the exact hardware interface is
525 strongly in flux, so no good recommendation can be made.
526
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527config SMP
528 bool "Symmetric multi-processing support"
529 ---help---
530 This enables support for systems with more than one CPU. If you have
531 a system with only one CPU, like most personal computers, say N. If
532 you have a system with more than one CPU, say Y.
533
534 If you say N here, the kernel will run on single and multiprocessor
535 machines, but will use only one CPU of a multiprocessor machine. If
536 you say Y here, the kernel will run on many, but not all,
537 singleprocessor machines. On a singleprocessor machine, the kernel
538 will run faster if you say N here.
539
540 People using multiprocessor machines who say Y here should also say
541 Y to "Enhanced Real Time Clock Support", below.
542
543 See also the <file:Documentation/smp.txt>,
544 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
545 at <http://www.tldp.org/docs.html#howto>.
546
547 If you don't know what to do here, say N.
548
549config NR_CPUS
550 int "Maximum number of CPUs (2-32)"
551 range 2 32
552 depends on SMP
553 default "2"
554 help
555 This allows you to specify the maximum number of CPUs which this
556 kernel will support. The maximum supported value is 32 and the
557 minimum value which makes sense is 2.
558
559 This is purely to save memory - each supported CPU adds
560 approximately eight kilobytes to the kernel image.
561
Paul Mundt91b91d02006-09-27 18:08:33 +0900562source "kernel/Kconfig.preempt"
563
Paul Mundtcad82442006-01-16 22:14:19 -0800564config CPU_HAS_SR_RB
565 bool "CPU has SR.RB"
566 depends on CPU_SH3 || CPU_SH4
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567 default y
568 help
Paul Mundtcad82442006-01-16 22:14:19 -0800569 This will enable the use of SR.RB register bank usage. Processors
570 that are lacking this bit must have another method in place for
571 accomplishing what is taken care of by the banked registers.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572
Paul Mundtcad82442006-01-16 22:14:19 -0800573 See <file:Documentation/sh/register-banks.txt> for further
574 information on SR.RB and register banking in the kernel in general.
575
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700576config NODES_SHIFT
577 int
578 default "1"
579 depends on NEED_MULTIPLE_NODES
580
Paul Mundtcad82442006-01-16 22:14:19 -0800581endmenu
582
583menu "Boot options"
584
585config ZERO_PAGE_OFFSET
586 hex "Zero page offset"
587 default "0x00004000" if SH_MPC1211 || SH_SH03
588 default "0x00001000"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589 help
Paul Mundtcad82442006-01-16 22:14:19 -0800590 This sets the default offset of zero page.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591
Paul Mundtcad82442006-01-16 22:14:19 -0800592config BOOT_LINK_OFFSET
593 hex "Link address offset for booting"
594 default "0x00800000"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595 help
Paul Mundtcad82442006-01-16 22:14:19 -0800596 This option allows you to set the link address offset of the zImage.
597 This can be useful if you are on a board which has a small amount of
598 memory.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599
Paul Mundtcad82442006-01-16 22:14:19 -0800600config UBC_WAKEUP
601 bool "Wakeup UBC on startup"
602 help
603 Selecting this option will wakeup the User Break Controller (UBC) on
604 startup. Although the UBC is left in an awake state when the processor
605 comes up, some boot loaders misbehave by putting the UBC to sleep in a
606 power saving state, which causes issues with things like ptrace().
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607
608 If unsure, say N.
609
Paul Mundtcad82442006-01-16 22:14:19 -0800610config CMDLINE_BOOL
611 bool "Default bootloader kernel arguments"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612
Paul Mundtcad82442006-01-16 22:14:19 -0800613config CMDLINE
614 string "Initial kernel command string"
615 depends on CMDLINE_BOOL
616 default "console=ttySC1,115200"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617
618endmenu
619
Paul Mundtcad82442006-01-16 22:14:19 -0800620menu "Bus options"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621
622# Even on SuperH devices which don't have an ISA bus,
623# this variable helps the PCMCIA modules handle
624# IRQ requesting properly -- Greg Banks.
625#
626# Though we're generally not interested in it when
627# we're not using PCMCIA, so we make it dependent on
628# PCMCIA outright. -- PFM.
629config ISA
630 bool
Paul Mundtcad82442006-01-16 22:14:19 -0800631 default y if PCMCIA
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632 help
633 Find out whether you have ISA slots on your motherboard. ISA is the
634 name of a bus system, i.e. the way the CPU talks to the other stuff
635 inside your box. Other bus systems are PCI, EISA, MicroChannel
636 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
637 newer boards don't support it. If you have ISA, say Y, otherwise N.
638
639config EISA
640 bool
641 ---help---
642 The Extended Industry Standard Architecture (EISA) bus was
643 developed as an open alternative to the IBM MicroChannel bus.
644
645 The EISA bus provided some of the features of the IBM MicroChannel
646 bus while maintaining backward compatibility with cards made for
647 the older ISA bus. The EISA bus saw limited use between 1988 and
648 1995 when it was made obsolete by the PCI bus.
649
650 Say Y here if you are building a kernel for an EISA-based machine.
651
652 Otherwise, say N.
653
654config MCA
655 bool
656 help
657 MicroChannel Architecture is found in some IBM PS/2 machines and
658 laptops. It is a bus system similar to PCI or ISA. See
659 <file:Documentation/mca.txt> (and especially the web page given
660 there) before attempting to build an MCA bus kernel.
661
662config SBUS
663 bool
664
Paul Mundtcad82442006-01-16 22:14:19 -0800665config SUPERHYWAY
666 tristate "SuperHyway Bus support"
667 depends on CPU_SUBTYPE_SH4_202
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668
669source "arch/sh/drivers/pci/Kconfig"
670
671source "drivers/pci/Kconfig"
672
673source "drivers/pcmcia/Kconfig"
674
675source "drivers/pci/hotplug/Kconfig"
676
677endmenu
678
679menu "Executable file formats"
680
681source "fs/Kconfig.binfmt"
682
683endmenu
684
Andriy Skulysh3aa770e2006-09-27 16:20:22 +0900685menu "Power management options (EXPERIMENTAL)"
686depends on EXPERIMENTAL
687
688source kernel/power/Kconfig
689
690config APM
691 bool "Advanced Power Management Emulation"
692 depends on PM
693endmenu
694
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700695source "net/Kconfig"
696
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697source "drivers/Kconfig"
698
699source "fs/Kconfig"
700
701source "arch/sh/oprofile/Kconfig"
702
703source "arch/sh/Kconfig.debug"
704
705source "security/Kconfig"
706
707source "crypto/Kconfig"
708
709source "lib/Kconfig"