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 | |
9 | bool | |
10 | default y | |
7a440c95 | 11 | select EMBEDDED |
1da177e4 LT |
12 | 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 | ||
1da177e4 LT |
18 | config RWSEM_GENERIC_SPINLOCK |
19 | bool | |
20 | default y | |
21 | ||
22 | config RWSEM_XCHGADD_ALGORITHM | |
23 | bool | |
24 | ||
fa691511 PM |
25 | config GENERIC_BUG |
26 | def_bool y | |
27 | depends on BUG | |
28 | ||
e2268c71 AM |
29 | config GENERIC_FIND_NEXT_BIT |
30 | bool | |
31 | default y | |
32 | ||
33 | config GENERIC_HWEIGHT | |
34 | bool | |
35 | default y | |
36 | ||
1da177e4 LT |
37 | config GENERIC_HARDIRQS |
38 | bool | |
39 | default y | |
40 | ||
41 | config GENERIC_IRQ_PROBE | |
42 | bool | |
43 | default y | |
44 | ||
45 | config GENERIC_CALIBRATE_DELAY | |
46 | bool | |
47 | default y | |
48 | ||
cad82448 PM |
49 | config GENERIC_IOMAP |
50 | bool | |
51 | ||
45882145 PM |
52 | config GENERIC_TIME |
53 | def_bool n | |
54 | ||
0a9b0db1 PM |
55 | config SYS_SUPPORTS_APM_EMULATION |
56 | bool | |
57 | ||
a08b6b79 Z |
58 | config ARCH_MAY_HAVE_PC_FDC |
59 | bool | |
a08b6b79 | 60 | |
afbfb52e PM |
61 | config STACKTRACE_SUPPORT |
62 | bool | |
63 | default y | |
64 | ||
65 | config LOCKDEP_SUPPORT | |
66 | bool | |
67 | default y | |
68 | ||
f0d1b0b3 DH |
69 | config ARCH_HAS_ILOG2_U32 |
70 | bool | |
71 | default n | |
72 | ||
73 | config ARCH_HAS_ILOG2_U64 | |
74 | bool | |
75 | default n | |
76 | ||
1da177e4 LT |
77 | source "init/Kconfig" |
78 | ||
79 | menu "System type" | |
80 | ||
bc8fb5d0 PM |
81 | config SOLUTION_ENGINE |
82 | bool | |
83 | ||
1da177e4 LT |
84 | choice |
85 | prompt "SuperH system type" | |
86 | default SH_UNKNOWN | |
87 | ||
88 | config SH_SOLUTION_ENGINE | |
89 | bool "SolutionEngine" | |
bc8fb5d0 | 90 | select SOLUTION_ENGINE |
1da177e4 LT |
91 | help |
92 | Select SolutionEngine if configuring for a Hitachi SH7709 | |
93 | or SH7750 evaluation board. | |
94 | ||
95 | config SH_7751_SOLUTION_ENGINE | |
96 | bool "SolutionEngine7751" | |
bc8fb5d0 | 97 | select SOLUTION_ENGINE |
cad82448 | 98 | select CPU_SUBTYPE_SH7751 |
1da177e4 LT |
99 | help |
100 | Select 7751 SolutionEngine if configuring for a Hitachi SH7751 | |
101 | evaluation board. | |
b7576230 NI |
102 | |
103 | config SH_7780_SOLUTION_ENGINE | |
104 | bool "SolutionEngine7780" | |
105 | select SOLUTION_ENGINE | |
106 | select CPU_SUBTYPE_SH7780 | |
107 | help | |
108 | Select 7780 SolutionEngine if configuring for a Renesas SH7780 | |
109 | evaluation board. | |
1da177e4 LT |
110 | |
111 | config SH_7300_SOLUTION_ENGINE | |
112 | bool "SolutionEngine7300" | |
bc8fb5d0 | 113 | select SOLUTION_ENGINE |
cad82448 | 114 | select CPU_SUBTYPE_SH7300 |
1da177e4 | 115 | help |
bc8fb5d0 PM |
116 | Select 7300 SolutionEngine if configuring for a Hitachi |
117 | SH7300(SH-Mobile V) evaluation board. | |
118 | ||
119 | config SH_7343_SOLUTION_ENGINE | |
120 | bool "SolutionEngine7343" | |
121 | select SOLUTION_ENGINE | |
122 | select CPU_SUBTYPE_SH7343 | |
123 | help | |
124 | Select 7343 SolutionEngine if configuring for a Hitachi | |
125 | SH7343 (SH-Mobile 3AS) evaluation board. | |
1da177e4 LT |
126 | |
127 | config SH_73180_SOLUTION_ENGINE | |
128 | bool "SolutionEngine73180" | |
bc8fb5d0 PM |
129 | select SOLUTION_ENGINE |
130 | select CPU_SUBTYPE_SH73180 | |
131 | help | |
132 | Select 73180 SolutionEngine if configuring for a Hitachi | |
133 | SH73180(SH-Mobile 3) evaluation board. | |
1da177e4 LT |
134 | |
135 | config SH_7751_SYSTEMH | |
136 | bool "SystemH7751R" | |
cad82448 | 137 | select CPU_SUBTYPE_SH7751R |
1da177e4 LT |
138 | help |
139 | Select SystemH if you are configuring for a Renesas SystemH | |
140 | 7751R evaluation board. | |
141 | ||
cad82448 PM |
142 | config SH_HP6XX |
143 | bool "HP6XX" | |
0a9b0db1 | 144 | select SYS_SUPPORTS_APM_EMULATION |
1da177e4 | 145 | help |
cad82448 | 146 | Select HP6XX if configuring for a HP jornada HP6xx. |
1da177e4 LT |
147 | More information (hardware only) at |
148 | <http://www.hp.com/jornada/>. | |
149 | ||
1da177e4 LT |
150 | config SH_SATURN |
151 | bool "Saturn" | |
cad82448 | 152 | select CPU_SUBTYPE_SH7604 |
1da177e4 LT |
153 | help |
154 | Select Saturn if configuring for a SEGA Saturn. | |
155 | ||
156 | config SH_DREAMCAST | |
157 | bool "Dreamcast" | |
cad82448 | 158 | select CPU_SUBTYPE_SH7091 |
1da177e4 LT |
159 | help |
160 | Select Dreamcast if configuring for a SEGA Dreamcast. | |
161 | More information at | |
162 | <http://www.m17n.org/linux-sh/dreamcast/>. There is a | |
163 | Dreamcast project is at <http://linuxdc.sourceforge.net/>. | |
164 | ||
1da177e4 | 165 | config SH_MPC1211 |
cad82448 PM |
166 | bool "Interface MPC1211" |
167 | help | |
168 | CTP/PCI-SH02 is a CPU module computer that is produced | |
169 | by Interface Corporation. | |
170 | More information at <http://www.interface.co.jp> | |
1da177e4 LT |
171 | |
172 | config SH_SH03 | |
cad82448 | 173 | bool "Interface CTP/PCI-SH03" |
1da177e4 | 174 | help |
cad82448 | 175 | CTP/PCI-SH03 is a CPU module computer that is produced |
1da177e4 | 176 | by Interface Corporation. |
1da177e4 LT |
177 | More information at <http://www.interface.co.jp> |
178 | ||
179 | config SH_SECUREEDGE5410 | |
180 | bool "SecureEdge5410" | |
cad82448 | 181 | select CPU_SUBTYPE_SH7751R |
1da177e4 LT |
182 | help |
183 | Select SecureEdge5410 if configuring for a SnapGear SH board. | |
184 | This includes both the OEM SecureEdge products as well as the | |
185 | SME product line. | |
186 | ||
187 | config SH_HS7751RVOIP | |
188 | bool "HS7751RVOIP" | |
cad82448 | 189 | select CPU_SUBTYPE_SH7751R |
1da177e4 LT |
190 | help |
191 | Select HS7751RVOIP if configuring for a Renesas Technology | |
192 | Sales VoIP board. | |
193 | ||
91b91d01 PM |
194 | config SH_7710VOIPGW |
195 | bool "SH7710-VOIP-GW" | |
196 | select CPU_SUBTYPE_SH7710 | |
197 | help | |
198 | Select this option to build a kernel for the SH7710 based | |
199 | VOIP GW. | |
200 | ||
1da177e4 LT |
201 | config SH_RTS7751R2D |
202 | bool "RTS7751R2D" | |
cad82448 | 203 | select CPU_SUBTYPE_SH7751R |
1da177e4 LT |
204 | help |
205 | Select RTS7751R2D if configuring for a Renesas Technology | |
206 | Sales SH-Graphics board. | |
207 | ||
32351a28 PM |
208 | config SH_HIGHLANDER |
209 | bool "Highlander" | |
cad82448 | 210 | |
1da177e4 LT |
211 | config SH_EDOSK7705 |
212 | bool "EDOSK7705" | |
cad82448 | 213 | select CPU_SUBTYPE_SH7705 |
1da177e4 LT |
214 | |
215 | config SH_SH4202_MICRODEV | |
216 | bool "SH4-202 MicroDev" | |
cad82448 | 217 | select CPU_SUBTYPE_SH4_202 |
1da177e4 LT |
218 | help |
219 | Select SH4-202 MicroDev if configuring for a SuperH MicroDev board | |
220 | with an SH4-202 CPU. | |
221 | ||
cad82448 PM |
222 | config SH_LANDISK |
223 | bool "LANDISK" | |
224 | select CPU_SUBTYPE_SH7751R | |
225 | help | |
226 | I-O DATA DEVICE, INC. "LANDISK Series" support. | |
227 | ||
228 | config SH_TITAN | |
229 | bool "TITAN" | |
230 | select CPU_SUBTYPE_SH7751R | |
231 | help | |
232 | Select Titan if you are configuring for a Nimble Microsystems | |
233 | NetEngine NP51R. | |
234 | ||
51e22e7a TY |
235 | config SH_SHMIN |
236 | bool "SHMIN" | |
237 | select CPU_SUBTYPE_SH7706 | |
238 | help | |
3cb2fccc | 239 | Select SHMIN if configuring for the SHMIN board. |
51e22e7a | 240 | |
9d4436a6 YS |
241 | config SH_7206_SOLUTION_ENGINE |
242 | bool "SolutionEngine7206" | |
243 | select CPU_SUBTYPE_SH7206 | |
244 | help | |
245 | Select 7206 SolutionEngine if configuring for a Hitachi SH7206 | |
246 | evaluation board. | |
247 | ||
248 | config SH_7619_SOLUTION_ENGINE | |
249 | bool "SolutionEngine7619" | |
250 | select CPU_SUBTYPE_SH7619 | |
251 | help | |
252 | Select 7619 SolutionEngine if configuring for a Hitachi SH7619 | |
253 | evaluation board. | |
c86c5a91 NI |
254 | |
255 | config SH_LBOX_RE2 | |
256 | bool "L-BOX RE2" | |
257 | select CPU_SUBTYPE_SH7751R | |
258 | help | |
259 | Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2. | |
9d4436a6 | 260 | |
1da177e4 LT |
261 | config SH_UNKNOWN |
262 | bool "BareCPU" | |
263 | help | |
264 | "Bare CPU" aka "unknown" means an SH-based system which is not one | |
265 | of the specific ones mentioned above, which means you need to enter | |
266 | all sorts of stuff like CONFIG_MEMORY_START because the config | |
267 | system doesn't already know what it is. You get a machine vector | |
268 | without any platform-specific code in it, so things like the RTC may | |
269 | not work. | |
270 | ||
271 | This option is for the early stages of porting to a new machine. | |
272 | ||
273 | endchoice | |
274 | ||
32351a28 PM |
275 | source "arch/sh/boards/renesas/hs7751rvoip/Kconfig" |
276 | source "arch/sh/boards/renesas/rts7751r2d/Kconfig" | |
277 | source "arch/sh/boards/renesas/r7780rp/Kconfig" | |
278 | ||
cad82448 | 279 | source "arch/sh/mm/Kconfig" |
1da177e4 | 280 | |
1da177e4 LT |
281 | config CF_ENABLER |
282 | bool "Compact Flash Enabler support" | |
5a4053b2 | 283 | depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03 |
1da177e4 LT |
284 | ---help--- |
285 | Compact Flash is a small, removable mass storage device introduced | |
286 | in 1994 originally as a PCMCIA device. If you say `Y' here, you | |
287 | compile in support for Compact Flash devices directly connected to | |
288 | a SuperH processor. A Compact Flash FAQ is available at | |
289 | <http://www.compactflash.org/faqs/faq.htm>. | |
290 | ||
291 | If your board has "Directly Connected" CompactFlash at area 5 or 6, | |
292 | you may want to enable this option. Then, you can use CF as | |
293 | primary IDE drive (only tested for SanDisk). | |
294 | ||
295 | If in doubt, select 'N'. | |
296 | ||
297 | choice | |
298 | prompt "Compact Flash Connection Area" | |
299 | depends on CF_ENABLER | |
300 | default CF_AREA6 | |
301 | ||
302 | config CF_AREA5 | |
303 | bool "Area5" | |
304 | help | |
305 | If your board has "Directly Connected" CompactFlash, You should | |
306 | select the area where your CF is connected to. | |
307 | ||
308 | - "Area5" if CompactFlash is connected to Area 5 (0x14000000) | |
309 | - "Area6" if it is connected to Area 6 (0x18000000) | |
310 | ||
5a4053b2 | 311 | "Area6" will work for most boards. |
1da177e4 LT |
312 | |
313 | config CF_AREA6 | |
314 | bool "Area6" | |
315 | ||
316 | endchoice | |
317 | ||
318 | config CF_BASE_ADDR | |
319 | hex | |
320 | depends on CF_ENABLER | |
321 | default "0xb8000000" if CF_AREA6 | |
322 | default "0xb4000000" if CF_AREA5 | |
323 | ||
cad82448 PM |
324 | menu "Processor features" |
325 | ||
53644087 PM |
326 | choice |
327 | prompt "Endianess selection" | |
328 | default CPU_LITTLE_ENDIAN | |
cad82448 PM |
329 | help |
330 | Some SuperH machines can be configured for either little or big | |
53644087 PM |
331 | endian byte order. These modes require different kernels. |
332 | ||
333 | config CPU_LITTLE_ENDIAN | |
334 | bool "Little Endian" | |
335 | ||
336 | config CPU_BIG_ENDIAN | |
337 | bool "Big Endian" | |
338 | ||
339 | endchoice | |
cad82448 | 340 | |
1da177e4 LT |
341 | config SH_FPU |
342 | bool "FPU support" | |
343 | depends on !CPU_SH3 | |
344 | default y | |
345 | help | |
346 | Selecting this option will enable support for SH processors that | |
347 | have FPU units (ie, SH77xx). | |
348 | ||
349 | This option must be set in order to enable the FPU. | |
350 | ||
4b565680 TY |
351 | config SH_FPU_EMU |
352 | bool "FPU emulation support" | |
353 | depends on !SH_FPU && EXPERIMENTAL | |
354 | default n | |
355 | help | |
356 | Selecting this option will enable support for software FPU emulation. | |
357 | Most SH-3 users will want to say Y here, whereas most SH-4 users will | |
358 | want to say N. | |
359 | ||
1da177e4 LT |
360 | config SH_DSP |
361 | bool "DSP support" | |
e5723e0e PM |
362 | default y if SH4AL_DSP || !CPU_SH4 |
363 | default n | |
1da177e4 LT |
364 | help |
365 | Selecting this option will enable support for SH processors that | |
e5723e0e | 366 | have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP). |
1da177e4 LT |
367 | |
368 | This option must be set in order to enable the DSP. | |
369 | ||
370 | config SH_ADC | |
371 | bool "ADC support" | |
372 | depends on CPU_SH3 | |
373 | default y | |
374 | help | |
375 | Selecting this option will allow the Linux kernel to use SH3 on-chip | |
376 | ADC module. | |
377 | ||
378 | If unsure, say N. | |
379 | ||
cad82448 PM |
380 | config SH_STORE_QUEUES |
381 | bool "Support for Store Queues" | |
382 | depends on CPU_SH4 | |
383 | help | |
384 | Selecting this option will enable an in-kernel API for manipulating | |
385 | the store queues integrated in the SH-4 processors. | |
386 | ||
45ed285b PM |
387 | config SPECULATIVE_EXECUTION |
388 | bool "Speculative subroutine return" | |
389 | depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL | |
390 | help | |
391 | This enables support for a speculative instruction fetch for | |
392 | subroutine return. There are various pitfalls associated with | |
393 | this, as outlined in the SH7780 hardware manual. | |
394 | ||
395 | If unsure, say N. | |
396 | ||
cad82448 | 397 | config CPU_HAS_INTEVT |
1da177e4 | 398 | bool |
1da177e4 | 399 | |
cad82448 PM |
400 | config CPU_HAS_PINT_IRQ |
401 | bool | |
1da177e4 | 402 | |
ba463937 PM |
403 | config CPU_HAS_MASKREG_IRQ |
404 | bool | |
405 | ||
cad82448 PM |
406 | config CPU_HAS_INTC2_IRQ |
407 | bool | |
3f22ab27 | 408 | |
ea0f8fea JL |
409 | config CPU_HAS_IPR_IRQ |
410 | bool | |
411 | ||
cad82448 PM |
412 | config CPU_HAS_SR_RB |
413 | bool "CPU has SR.RB" | |
414 | depends on CPU_SH3 || CPU_SH4 | |
415 | default y | |
1da177e4 | 416 | help |
cad82448 PM |
417 | This will enable the use of SR.RB register bank usage. Processors |
418 | that are lacking this bit must have another method in place for | |
419 | accomplishing what is taken care of by the banked registers. | |
1da177e4 | 420 | |
cad82448 PM |
421 | See <file:Documentation/sh/register-banks.txt> for further |
422 | information on SR.RB and register banking in the kernel in general. | |
1da177e4 | 423 | |
9b3a53ab SM |
424 | config CPU_HAS_PTEA |
425 | bool | |
426 | ||
cad82448 | 427 | endmenu |
1da177e4 | 428 | |
32351a28 PM |
429 | menu "Timer and clock configuration" |
430 | ||
431 | if !GENERIC_TIME | |
1da177e4 | 432 | |
cad82448 PM |
433 | config SH_TMU |
434 | bool "TMU timer support" | |
9d4436a6 | 435 | depends on CPU_SH3 || CPU_SH4 |
1da177e4 | 436 | default y |
1da177e4 | 437 | help |
cad82448 | 438 | This enables the use of the TMU as the system timer. |
1da177e4 | 439 | |
9d4436a6 YS |
440 | config SH_CMT |
441 | bool "CMT timer support" | |
442 | depends on CPU_SH2 | |
443 | default y | |
444 | help | |
445 | This enables the use of the CMT as the system timer. | |
446 | ||
447 | config SH_MTU2 | |
448 | bool "MTU2 timer support" | |
449 | depends on CPU_SH2A | |
450 | default n | |
451 | help | |
452 | This enables the use of the MTU2 as the system timer. | |
453 | ||
32351a28 | 454 | endif |
5283ecb5 | 455 | |
417528a2 PM |
456 | config SH_TIMER_IRQ |
457 | int | |
32351a28 | 458 | default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 |
417528a2 PM |
459 | default "86" if CPU_SUBTYPE_SH7619 |
460 | default "140" if CPU_SUBTYPE_SH7206 | |
461 | default "16" | |
462 | ||
bd156147 PM |
463 | config NO_IDLE_HZ |
464 | bool "Dynamic tick timer" | |
465 | help | |
466 | Select this option if you want to disable continuous timer ticks | |
467 | and have them programmed to occur as required. This option saves | |
468 | power as the system can remain in idle state for longer. | |
469 | ||
470 | By default dynamic tick is disabled during the boot, and can be | |
471 | manually enabled with: | |
472 | ||
473 | echo 1 > /sys/devices/system/timer/timer0/dyn_tick | |
474 | ||
475 | Alternatively, if you want dynamic tick automatically enabled | |
476 | during boot, pass "dyntick=enable" via the kernel command string. | |
477 | ||
478 | Please note that dynamic tick may affect the accuracy of | |
479 | timekeeping on some platforms depending on the implementation. | |
480 | ||
cad82448 PM |
481 | config SH_PCLK_FREQ |
482 | int "Peripheral clock frequency (in Hz)" | |
9d4436a6 YS |
483 | default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343 |
484 | default "31250000" if CPU_SUBTYPE_SH7619 | |
485 | default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \ | |
486 | CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ | |
487 | CPU_SUBTYPE_SH7206 | |
32351a28 PM |
488 | default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780 || \ |
489 | CPU_SUBTYPE_SH7785 | |
cad82448 | 490 | default "60000000" if CPU_SUBTYPE_SH7751 |
cad82448 | 491 | default "66000000" if CPU_SUBTYPE_SH4_202 |
1da177e4 | 492 | help |
cad82448 PM |
493 | This option is used to specify the peripheral clock frequency. |
494 | This is necessary for determining the reference clock value on | |
495 | platforms lacking an RTC. | |
1da177e4 | 496 | |
9d4436a6 YS |
497 | config SH_CLK_MD |
498 | int "CPU Mode Pin Setting" | |
506b85f4 | 499 | default 0 |
9d4436a6 YS |
500 | depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206 |
501 | help | |
11cbb70e | 502 | MD2 - MD0 pin setting. |
9d4436a6 | 503 | |
32351a28 PM |
504 | endmenu |
505 | ||
cad82448 PM |
506 | menu "CPU Frequency scaling" |
507 | ||
508 | source "drivers/cpufreq/Kconfig" | |
1da177e4 | 509 | |
cad82448 PM |
510 | config SH_CPU_FREQ |
511 | tristate "SuperH CPU Frequency driver" | |
512 | depends on CPU_FREQ | |
513 | select CPU_FREQ_TABLE | |
1da177e4 | 514 | help |
cad82448 PM |
515 | This adds the cpufreq driver for SuperH. At present, only |
516 | the SH-4 is supported. | |
1da177e4 | 517 | |
cad82448 | 518 | For details, take a look at <file:Documentation/cpu-freq>. |
1da177e4 LT |
519 | |
520 | If unsure, say N. | |
521 | ||
cad82448 PM |
522 | endmenu |
523 | ||
9f5e8eee PM |
524 | source "arch/sh/drivers/Kconfig" |
525 | ||
cad82448 | 526 | endmenu |
1da177e4 | 527 | |
cad82448 PM |
528 | config ISA_DMA_API |
529 | bool | |
05efc67d | 530 | depends on SH_MPC1211 |
cad82448 | 531 | default y |
1da177e4 | 532 | |
cad82448 PM |
533 | menu "Kernel features" |
534 | ||
91b91d01 PM |
535 | source kernel/Kconfig.hz |
536 | ||
cad82448 PM |
537 | config KEXEC |
538 | bool "kexec system call (EXPERIMENTAL)" | |
539 | depends on EXPERIMENTAL | |
1da177e4 | 540 | help |
cad82448 PM |
541 | kexec is a system call that implements the ability to shutdown your |
542 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 543 | but it is independent of the system firmware. And like a reboot |
cad82448 PM |
544 | you can start any kernel with it, not just Linux. |
545 | ||
1f1332f7 | 546 | The name comes from the similarity to the exec system call. |
cad82448 PM |
547 | |
548 | It is an ongoing process to be certain the hardware in a machine | |
549 | is properly shutdown, so do not be surprised if this code does not | |
550 | initially work for you. It may help to enable device hotplugging | |
551 | support. As of this writing the exact hardware interface is | |
552 | strongly in flux, so no good recommendation can be made. | |
553 | ||
1da177e4 LT |
554 | config SMP |
555 | bool "Symmetric multi-processing support" | |
556 | ---help--- | |
557 | This enables support for systems with more than one CPU. If you have | |
558 | a system with only one CPU, like most personal computers, say N. If | |
559 | you have a system with more than one CPU, say Y. | |
560 | ||
561 | If you say N here, the kernel will run on single and multiprocessor | |
562 | machines, but will use only one CPU of a multiprocessor machine. If | |
563 | you say Y here, the kernel will run on many, but not all, | |
564 | singleprocessor machines. On a singleprocessor machine, the kernel | |
565 | will run faster if you say N here. | |
566 | ||
567 | People using multiprocessor machines who say Y here should also say | |
568 | Y to "Enhanced Real Time Clock Support", below. | |
569 | ||
570 | See also the <file:Documentation/smp.txt>, | |
571 | <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available | |
572 | at <http://www.tldp.org/docs.html#howto>. | |
573 | ||
574 | If you don't know what to do here, say N. | |
575 | ||
576 | config NR_CPUS | |
577 | int "Maximum number of CPUs (2-32)" | |
578 | range 2 32 | |
579 | depends on SMP | |
580 | default "2" | |
581 | help | |
582 | This allows you to specify the maximum number of CPUs which this | |
583 | kernel will support. The maximum supported value is 32 and the | |
584 | minimum value which makes sense is 2. | |
585 | ||
586 | This is purely to save memory - each supported CPU adds | |
587 | approximately eight kilobytes to the kernel image. | |
588 | ||
91b91d01 PM |
589 | source "kernel/Kconfig.preempt" |
590 | ||
c80d79d7 YG |
591 | config NODES_SHIFT |
592 | int | |
593 | default "1" | |
594 | depends on NEED_MULTIPLE_NODES | |
595 | ||
cad82448 | 596 | endmenu |
1da177e4 | 597 | |
cad82448 | 598 | menu "Boot options" |
1da177e4 | 599 | |
cad82448 PM |
600 | config ZERO_PAGE_OFFSET |
601 | hex "Zero page offset" | |
602 | default "0x00004000" if SH_MPC1211 || SH_SH03 | |
7a847f81 PM |
603 | default "0x00010000" if PAGE_SIZE_64KB |
604 | default "0x00002000" if PAGE_SIZE_8KB | |
cad82448 | 605 | default "0x00001000" |
1da177e4 | 606 | help |
cad82448 | 607 | This sets the default offset of zero page. |
1da177e4 | 608 | |
cad82448 PM |
609 | config BOOT_LINK_OFFSET |
610 | hex "Link address offset for booting" | |
611 | default "0x00800000" | |
612 | help | |
613 | This option allows you to set the link address offset of the zImage. | |
614 | This can be useful if you are on a board which has a small amount of | |
615 | memory. | |
1da177e4 | 616 | |
cad82448 PM |
617 | config UBC_WAKEUP |
618 | bool "Wakeup UBC on startup" | |
619 | help | |
620 | Selecting this option will wakeup the User Break Controller (UBC) on | |
621 | startup. Although the UBC is left in an awake state when the processor | |
622 | comes up, some boot loaders misbehave by putting the UBC to sleep in a | |
623 | power saving state, which causes issues with things like ptrace(). | |
1da177e4 | 624 | |
cad82448 | 625 | If unsure, say N. |
1da177e4 | 626 | |
cad82448 PM |
627 | config CMDLINE_BOOL |
628 | bool "Default bootloader kernel arguments" | |
1da177e4 | 629 | |
cad82448 PM |
630 | config CMDLINE |
631 | string "Initial kernel command string" | |
632 | depends on CMDLINE_BOOL | |
633 | default "console=ttySC1,115200" | |
1da177e4 LT |
634 | |
635 | endmenu | |
636 | ||
cad82448 | 637 | menu "Bus options" |
1da177e4 LT |
638 | |
639 | # Even on SuperH devices which don't have an ISA bus, | |
640 | # this variable helps the PCMCIA modules handle | |
641 | # IRQ requesting properly -- Greg Banks. | |
642 | # | |
643 | # Though we're generally not interested in it when | |
644 | # we're not using PCMCIA, so we make it dependent on | |
645 | # PCMCIA outright. -- PFM. | |
646 | config ISA | |
647 | bool | |
cad82448 | 648 | default y if PCMCIA |
1da177e4 LT |
649 | help |
650 | Find out whether you have ISA slots on your motherboard. ISA is the | |
651 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
652 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
653 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
654 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
655 | ||
656 | config EISA | |
657 | bool | |
658 | ---help--- | |
659 | The Extended Industry Standard Architecture (EISA) bus was | |
660 | developed as an open alternative to the IBM MicroChannel bus. | |
661 | ||
662 | The EISA bus provided some of the features of the IBM MicroChannel | |
663 | bus while maintaining backward compatibility with cards made for | |
664 | the older ISA bus. The EISA bus saw limited use between 1988 and | |
665 | 1995 when it was made obsolete by the PCI bus. | |
666 | ||
667 | Say Y here if you are building a kernel for an EISA-based machine. | |
668 | ||
669 | Otherwise, say N. | |
670 | ||
671 | config MCA | |
672 | bool | |
673 | help | |
674 | MicroChannel Architecture is found in some IBM PS/2 machines and | |
675 | laptops. It is a bus system similar to PCI or ISA. See | |
676 | <file:Documentation/mca.txt> (and especially the web page given | |
677 | there) before attempting to build an MCA bus kernel. | |
678 | ||
679 | config SBUS | |
680 | bool | |
681 | ||
cad82448 PM |
682 | config SUPERHYWAY |
683 | tristate "SuperHyway Bus support" | |
684 | depends on CPU_SUBTYPE_SH4_202 | |
1da177e4 LT |
685 | |
686 | source "arch/sh/drivers/pci/Kconfig" | |
687 | ||
688 | source "drivers/pci/Kconfig" | |
689 | ||
690 | source "drivers/pcmcia/Kconfig" | |
691 | ||
692 | source "drivers/pci/hotplug/Kconfig" | |
693 | ||
694 | endmenu | |
695 | ||
696 | menu "Executable file formats" | |
697 | ||
698 | source "fs/Kconfig.binfmt" | |
699 | ||
700 | endmenu | |
701 | ||
3aa770e7 AS |
702 | menu "Power management options (EXPERIMENTAL)" |
703 | depends on EXPERIMENTAL | |
704 | ||
705 | source kernel/power/Kconfig | |
706 | ||
3aa770e7 AS |
707 | endmenu |
708 | ||
d5950b43 SR |
709 | source "net/Kconfig" |
710 | ||
1da177e4 LT |
711 | source "drivers/Kconfig" |
712 | ||
713 | source "fs/Kconfig" | |
714 | ||
715 | source "arch/sh/oprofile/Kconfig" | |
716 | ||
717 | source "arch/sh/Kconfig.debug" | |
718 | ||
719 | source "security/Kconfig" | |
720 | ||
721 | source "crypto/Kconfig" | |
722 | ||
723 | source "lib/Kconfig" |