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 | ||
e2268c71 AM |
25 | config GENERIC_FIND_NEXT_BIT |
26 | bool | |
27 | default y | |
28 | ||
29 | config GENERIC_HWEIGHT | |
30 | bool | |
31 | default y | |
32 | ||
1da177e4 LT |
33 | config GENERIC_HARDIRQS |
34 | bool | |
35 | default y | |
36 | ||
37 | config GENERIC_IRQ_PROBE | |
38 | bool | |
39 | default y | |
40 | ||
41 | config GENERIC_CALIBRATE_DELAY | |
42 | bool | |
43 | default y | |
44 | ||
cad82448 PM |
45 | config GENERIC_IOMAP |
46 | bool | |
47 | ||
45882145 PM |
48 | config GENERIC_TIME |
49 | def_bool n | |
50 | ||
0a9b0db1 PM |
51 | config SYS_SUPPORTS_APM_EMULATION |
52 | bool | |
53 | ||
a08b6b79 Z |
54 | config ARCH_MAY_HAVE_PC_FDC |
55 | bool | |
a08b6b79 | 56 | |
afbfb52e PM |
57 | config STACKTRACE_SUPPORT |
58 | bool | |
59 | default y | |
60 | ||
61 | config LOCKDEP_SUPPORT | |
62 | bool | |
63 | default y | |
64 | ||
f0d1b0b3 DH |
65 | config ARCH_HAS_ILOG2_U32 |
66 | bool | |
67 | default n | |
68 | ||
69 | config ARCH_HAS_ILOG2_U64 | |
70 | bool | |
71 | default n | |
72 | ||
1da177e4 LT |
73 | source "init/Kconfig" |
74 | ||
75 | menu "System type" | |
76 | ||
bc8fb5d0 PM |
77 | config SOLUTION_ENGINE |
78 | bool | |
79 | ||
1da177e4 LT |
80 | choice |
81 | prompt "SuperH system type" | |
82 | default SH_UNKNOWN | |
83 | ||
84 | config SH_SOLUTION_ENGINE | |
85 | bool "SolutionEngine" | |
bc8fb5d0 | 86 | select SOLUTION_ENGINE |
1da177e4 LT |
87 | help |
88 | Select SolutionEngine if configuring for a Hitachi SH7709 | |
89 | or SH7750 evaluation board. | |
90 | ||
91 | config SH_7751_SOLUTION_ENGINE | |
92 | bool "SolutionEngine7751" | |
bc8fb5d0 | 93 | select SOLUTION_ENGINE |
cad82448 | 94 | select CPU_SUBTYPE_SH7751 |
1da177e4 LT |
95 | help |
96 | Select 7751 SolutionEngine if configuring for a Hitachi SH7751 | |
97 | evaluation board. | |
98 | ||
99 | config SH_7300_SOLUTION_ENGINE | |
100 | bool "SolutionEngine7300" | |
bc8fb5d0 | 101 | select SOLUTION_ENGINE |
cad82448 | 102 | select CPU_SUBTYPE_SH7300 |
1da177e4 | 103 | help |
bc8fb5d0 PM |
104 | Select 7300 SolutionEngine if configuring for a Hitachi |
105 | SH7300(SH-Mobile V) evaluation board. | |
106 | ||
107 | config 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. | |
1da177e4 LT |
114 | |
115 | config SH_73180_SOLUTION_ENGINE | |
116 | bool "SolutionEngine73180" | |
bc8fb5d0 PM |
117 | 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. | |
1da177e4 LT |
122 | |
123 | config SH_7751_SYSTEMH | |
124 | bool "SystemH7751R" | |
cad82448 | 125 | select CPU_SUBTYPE_SH7751R |
1da177e4 LT |
126 | help |
127 | Select SystemH if you are configuring for a Renesas SystemH | |
128 | 7751R evaluation board. | |
129 | ||
cad82448 PM |
130 | config SH_HP6XX |
131 | bool "HP6XX" | |
0a9b0db1 | 132 | select SYS_SUPPORTS_APM_EMULATION |
1da177e4 | 133 | help |
cad82448 | 134 | Select HP6XX if configuring for a HP jornada HP6xx. |
1da177e4 LT |
135 | More information (hardware only) at |
136 | <http://www.hp.com/jornada/>. | |
137 | ||
1da177e4 LT |
138 | config SH_SATURN |
139 | bool "Saturn" | |
cad82448 | 140 | select CPU_SUBTYPE_SH7604 |
1da177e4 LT |
141 | help |
142 | Select Saturn if configuring for a SEGA Saturn. | |
143 | ||
144 | config SH_DREAMCAST | |
145 | bool "Dreamcast" | |
cad82448 | 146 | select CPU_SUBTYPE_SH7091 |
1da177e4 LT |
147 | help |
148 | Select Dreamcast if configuring for a SEGA Dreamcast. | |
149 | More information at | |
150 | <http://www.m17n.org/linux-sh/dreamcast/>. There is a | |
151 | Dreamcast project is at <http://linuxdc.sourceforge.net/>. | |
152 | ||
1da177e4 | 153 | config SH_MPC1211 |
cad82448 PM |
154 | bool "Interface MPC1211" |
155 | help | |
156 | CTP/PCI-SH02 is a CPU module computer that is produced | |
157 | by Interface Corporation. | |
158 | More information at <http://www.interface.co.jp> | |
1da177e4 LT |
159 | |
160 | config SH_SH03 | |
cad82448 | 161 | bool "Interface CTP/PCI-SH03" |
1da177e4 | 162 | help |
cad82448 | 163 | CTP/PCI-SH03 is a CPU module computer that is produced |
1da177e4 | 164 | by Interface Corporation. |
1da177e4 LT |
165 | More information at <http://www.interface.co.jp> |
166 | ||
167 | config SH_SECUREEDGE5410 | |
168 | bool "SecureEdge5410" | |
cad82448 | 169 | select CPU_SUBTYPE_SH7751R |
1da177e4 LT |
170 | help |
171 | Select SecureEdge5410 if configuring for a SnapGear SH board. | |
172 | This includes both the OEM SecureEdge products as well as the | |
173 | SME product line. | |
174 | ||
175 | config SH_HS7751RVOIP | |
176 | bool "HS7751RVOIP" | |
cad82448 | 177 | select CPU_SUBTYPE_SH7751R |
1da177e4 LT |
178 | help |
179 | Select HS7751RVOIP if configuring for a Renesas Technology | |
180 | Sales VoIP board. | |
181 | ||
91b91d01 PM |
182 | config SH_7710VOIPGW |
183 | bool "SH7710-VOIP-GW" | |
184 | select CPU_SUBTYPE_SH7710 | |
185 | help | |
186 | Select this option to build a kernel for the SH7710 based | |
187 | VOIP GW. | |
188 | ||
1da177e4 LT |
189 | config SH_RTS7751R2D |
190 | bool "RTS7751R2D" | |
cad82448 | 191 | select CPU_SUBTYPE_SH7751R |
1da177e4 LT |
192 | help |
193 | Select RTS7751R2D if configuring for a Renesas Technology | |
194 | Sales SH-Graphics board. | |
195 | ||
cad82448 PM |
196 | config SH_R7780RP |
197 | bool "R7780RP-1" | |
198 | select CPU_SUBTYPE_SH7780 | |
199 | help | |
200 | Select R7780RP-1 if configuring for a Renesas Solutions | |
201 | HIGHLANDER board. | |
202 | ||
1da177e4 LT |
203 | config SH_EDOSK7705 |
204 | bool "EDOSK7705" | |
cad82448 | 205 | select CPU_SUBTYPE_SH7705 |
1da177e4 LT |
206 | |
207 | config SH_SH4202_MICRODEV | |
208 | bool "SH4-202 MicroDev" | |
cad82448 | 209 | select CPU_SUBTYPE_SH4_202 |
1da177e4 LT |
210 | help |
211 | Select SH4-202 MicroDev if configuring for a SuperH MicroDev board | |
212 | with an SH4-202 CPU. | |
213 | ||
cad82448 PM |
214 | config SH_LANDISK |
215 | bool "LANDISK" | |
216 | select CPU_SUBTYPE_SH7751R | |
217 | help | |
218 | I-O DATA DEVICE, INC. "LANDISK Series" support. | |
219 | ||
220 | config SH_TITAN | |
221 | bool "TITAN" | |
222 | select CPU_SUBTYPE_SH7751R | |
223 | help | |
224 | Select Titan if you are configuring for a Nimble Microsystems | |
225 | NetEngine NP51R. | |
226 | ||
51e22e7a TY |
227 | config SH_SHMIN |
228 | bool "SHMIN" | |
229 | select CPU_SUBTYPE_SH7706 | |
230 | help | |
3cb2fccc | 231 | Select SHMIN if configuring for the SHMIN board. |
51e22e7a | 232 | |
9d4436a6 YS |
233 | config SH_7206_SOLUTION_ENGINE |
234 | bool "SolutionEngine7206" | |
235 | select CPU_SUBTYPE_SH7206 | |
236 | help | |
237 | Select 7206 SolutionEngine if configuring for a Hitachi SH7206 | |
238 | evaluation board. | |
239 | ||
240 | config SH_7619_SOLUTION_ENGINE | |
241 | bool "SolutionEngine7619" | |
242 | select CPU_SUBTYPE_SH7619 | |
243 | help | |
244 | Select 7619 SolutionEngine if configuring for a Hitachi SH7619 | |
245 | evaluation board. | |
246 | ||
1da177e4 LT |
247 | config SH_UNKNOWN |
248 | bool "BareCPU" | |
249 | help | |
250 | "Bare CPU" aka "unknown" means an SH-based system which is not one | |
251 | of the specific ones mentioned above, which means you need to enter | |
252 | all sorts of stuff like CONFIG_MEMORY_START because the config | |
253 | system doesn't already know what it is. You get a machine vector | |
254 | without any platform-specific code in it, so things like the RTC may | |
255 | not work. | |
256 | ||
257 | This option is for the early stages of porting to a new machine. | |
258 | ||
259 | endchoice | |
260 | ||
cad82448 | 261 | source "arch/sh/mm/Kconfig" |
1da177e4 | 262 | |
1da177e4 LT |
263 | config CF_ENABLER |
264 | bool "Compact Flash Enabler support" | |
5a4053b2 | 265 | depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03 |
1da177e4 LT |
266 | ---help--- |
267 | Compact Flash is a small, removable mass storage device introduced | |
268 | in 1994 originally as a PCMCIA device. If you say `Y' here, you | |
269 | compile in support for Compact Flash devices directly connected to | |
270 | a SuperH processor. A Compact Flash FAQ is available at | |
271 | <http://www.compactflash.org/faqs/faq.htm>. | |
272 | ||
273 | If your board has "Directly Connected" CompactFlash at area 5 or 6, | |
274 | you may want to enable this option. Then, you can use CF as | |
275 | primary IDE drive (only tested for SanDisk). | |
276 | ||
277 | If in doubt, select 'N'. | |
278 | ||
279 | choice | |
280 | prompt "Compact Flash Connection Area" | |
281 | depends on CF_ENABLER | |
282 | default CF_AREA6 | |
283 | ||
284 | config CF_AREA5 | |
285 | bool "Area5" | |
286 | help | |
287 | If your board has "Directly Connected" CompactFlash, You should | |
288 | select the area where your CF is connected to. | |
289 | ||
290 | - "Area5" if CompactFlash is connected to Area 5 (0x14000000) | |
291 | - "Area6" if it is connected to Area 6 (0x18000000) | |
292 | ||
5a4053b2 | 293 | "Area6" will work for most boards. |
1da177e4 LT |
294 | |
295 | config CF_AREA6 | |
296 | bool "Area6" | |
297 | ||
298 | endchoice | |
299 | ||
300 | config CF_BASE_ADDR | |
301 | hex | |
302 | depends on CF_ENABLER | |
303 | default "0xb8000000" if CF_AREA6 | |
304 | default "0xb4000000" if CF_AREA5 | |
305 | ||
cad82448 PM |
306 | menu "Processor features" |
307 | ||
53644087 PM |
308 | choice |
309 | prompt "Endianess selection" | |
310 | default CPU_LITTLE_ENDIAN | |
cad82448 PM |
311 | help |
312 | Some SuperH machines can be configured for either little or big | |
53644087 PM |
313 | endian byte order. These modes require different kernels. |
314 | ||
315 | config CPU_LITTLE_ENDIAN | |
316 | bool "Little Endian" | |
317 | ||
318 | config CPU_BIG_ENDIAN | |
319 | bool "Big Endian" | |
320 | ||
321 | endchoice | |
cad82448 | 322 | |
1da177e4 LT |
323 | config SH_FPU |
324 | bool "FPU support" | |
325 | depends on !CPU_SH3 | |
326 | default y | |
327 | help | |
328 | Selecting this option will enable support for SH processors that | |
329 | have FPU units (ie, SH77xx). | |
330 | ||
331 | This option must be set in order to enable the FPU. | |
332 | ||
4b565680 TY |
333 | config SH_FPU_EMU |
334 | bool "FPU emulation support" | |
335 | depends on !SH_FPU && EXPERIMENTAL | |
336 | default n | |
337 | help | |
338 | Selecting this option will enable support for software FPU emulation. | |
339 | Most SH-3 users will want to say Y here, whereas most SH-4 users will | |
340 | want to say N. | |
341 | ||
1da177e4 LT |
342 | config SH_DSP |
343 | bool "DSP support" | |
e5723e0e PM |
344 | default y if SH4AL_DSP || !CPU_SH4 |
345 | default n | |
1da177e4 LT |
346 | help |
347 | Selecting this option will enable support for SH processors that | |
e5723e0e | 348 | have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP). |
1da177e4 LT |
349 | |
350 | This option must be set in order to enable the DSP. | |
351 | ||
352 | config SH_ADC | |
353 | bool "ADC support" | |
354 | depends on CPU_SH3 | |
355 | default y | |
356 | help | |
357 | Selecting this option will allow the Linux kernel to use SH3 on-chip | |
358 | ADC module. | |
359 | ||
360 | If unsure, say N. | |
361 | ||
cad82448 PM |
362 | config SH_STORE_QUEUES |
363 | bool "Support for Store Queues" | |
364 | depends on CPU_SH4 | |
365 | help | |
366 | Selecting this option will enable an in-kernel API for manipulating | |
367 | the store queues integrated in the SH-4 processors. | |
368 | ||
45ed285b PM |
369 | config SPECULATIVE_EXECUTION |
370 | bool "Speculative subroutine return" | |
371 | depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL | |
372 | help | |
373 | This enables support for a speculative instruction fetch for | |
374 | subroutine return. There are various pitfalls associated with | |
375 | this, as outlined in the SH7780 hardware manual. | |
376 | ||
377 | If unsure, say N. | |
378 | ||
cad82448 | 379 | config CPU_HAS_INTEVT |
1da177e4 | 380 | bool |
1da177e4 | 381 | |
cad82448 PM |
382 | config CPU_HAS_PINT_IRQ |
383 | bool | |
1da177e4 | 384 | |
ba463937 PM |
385 | config CPU_HAS_MASKREG_IRQ |
386 | bool | |
387 | ||
cad82448 PM |
388 | config CPU_HAS_INTC2_IRQ |
389 | bool | |
3f22ab27 | 390 | |
ea0f8fea JL |
391 | config CPU_HAS_IPR_IRQ |
392 | bool | |
393 | ||
cad82448 PM |
394 | config CPU_HAS_SR_RB |
395 | bool "CPU has SR.RB" | |
396 | depends on CPU_SH3 || CPU_SH4 | |
397 | default y | |
1da177e4 | 398 | help |
cad82448 PM |
399 | This will enable the use of SR.RB register bank usage. Processors |
400 | that are lacking this bit must have another method in place for | |
401 | accomplishing what is taken care of by the banked registers. | |
1da177e4 | 402 | |
cad82448 PM |
403 | See <file:Documentation/sh/register-banks.txt> for further |
404 | information on SR.RB and register banking in the kernel in general. | |
1da177e4 | 405 | |
9b3a53ab SM |
406 | config CPU_HAS_PTEA |
407 | bool | |
408 | ||
cad82448 | 409 | endmenu |
1da177e4 | 410 | |
cad82448 | 411 | menu "Timer support" |
45882145 | 412 | depends on !GENERIC_TIME |
1da177e4 | 413 | |
cad82448 PM |
414 | config SH_TMU |
415 | bool "TMU timer support" | |
9d4436a6 | 416 | depends on CPU_SH3 || CPU_SH4 |
1da177e4 | 417 | default y |
1da177e4 | 418 | help |
cad82448 | 419 | This enables the use of the TMU as the system timer. |
1da177e4 | 420 | |
9d4436a6 YS |
421 | config SH_CMT |
422 | bool "CMT timer support" | |
423 | depends on CPU_SH2 | |
424 | default y | |
425 | help | |
426 | This enables the use of the CMT as the system timer. | |
427 | ||
428 | config SH_MTU2 | |
429 | bool "MTU2 timer support" | |
430 | depends on CPU_SH2A | |
431 | default n | |
432 | help | |
433 | This enables the use of the MTU2 as the system timer. | |
434 | ||
cad82448 | 435 | endmenu |
1da177e4 | 436 | |
e8fb67f8 | 437 | source "arch/sh/boards/renesas/hs7751rvoip/Kconfig" |
1da177e4 | 438 | |
36efc354 | 439 | source "arch/sh/boards/renesas/rts7751r2d/Kconfig" |
cad82448 | 440 | |
5283ecb5 PM |
441 | source "arch/sh/boards/renesas/r7780rp/Kconfig" |
442 | ||
417528a2 PM |
443 | config SH_TIMER_IRQ |
444 | int | |
445 | default "28" if CPU_SUBTYPE_SH7780 | |
446 | default "86" if CPU_SUBTYPE_SH7619 | |
447 | default "140" if CPU_SUBTYPE_SH7206 | |
448 | default "16" | |
449 | ||
bd156147 PM |
450 | config NO_IDLE_HZ |
451 | bool "Dynamic tick timer" | |
452 | help | |
453 | Select this option if you want to disable continuous timer ticks | |
454 | and have them programmed to occur as required. This option saves | |
455 | power as the system can remain in idle state for longer. | |
456 | ||
457 | By default dynamic tick is disabled during the boot, and can be | |
458 | manually enabled with: | |
459 | ||
460 | echo 1 > /sys/devices/system/timer/timer0/dyn_tick | |
461 | ||
462 | Alternatively, if you want dynamic tick automatically enabled | |
463 | during boot, pass "dyntick=enable" via the kernel command string. | |
464 | ||
465 | Please note that dynamic tick may affect the accuracy of | |
466 | timekeeping on some platforms depending on the implementation. | |
467 | ||
cad82448 PM |
468 | config SH_PCLK_FREQ |
469 | int "Peripheral clock frequency (in Hz)" | |
9d4436a6 YS |
470 | default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343 |
471 | default "31250000" if CPU_SUBTYPE_SH7619 | |
472 | default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \ | |
473 | CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ | |
474 | CPU_SUBTYPE_SH7206 | |
cad82448 PM |
475 | default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780 |
476 | default "60000000" if CPU_SUBTYPE_SH7751 | |
cad82448 | 477 | default "66000000" if CPU_SUBTYPE_SH4_202 |
1da177e4 | 478 | help |
cad82448 PM |
479 | This option is used to specify the peripheral clock frequency. |
480 | This is necessary for determining the reference clock value on | |
481 | platforms lacking an RTC. | |
1da177e4 | 482 | |
9d4436a6 YS |
483 | config SH_CLK_MD |
484 | int "CPU Mode Pin Setting" | |
506b85f4 | 485 | default 0 |
9d4436a6 YS |
486 | depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206 |
487 | help | |
11cbb70e | 488 | MD2 - MD0 pin setting. |
9d4436a6 | 489 | |
cad82448 PM |
490 | menu "CPU Frequency scaling" |
491 | ||
492 | source "drivers/cpufreq/Kconfig" | |
1da177e4 | 493 | |
cad82448 PM |
494 | config SH_CPU_FREQ |
495 | tristate "SuperH CPU Frequency driver" | |
496 | depends on CPU_FREQ | |
497 | select CPU_FREQ_TABLE | |
1da177e4 | 498 | help |
cad82448 PM |
499 | This adds the cpufreq driver for SuperH. At present, only |
500 | the SH-4 is supported. | |
1da177e4 | 501 | |
cad82448 | 502 | For details, take a look at <file:Documentation/cpu-freq>. |
1da177e4 LT |
503 | |
504 | If unsure, say N. | |
505 | ||
cad82448 PM |
506 | endmenu |
507 | ||
508 | source "arch/sh/drivers/dma/Kconfig" | |
509 | ||
510 | source "arch/sh/cchips/Kconfig" | |
511 | ||
512 | config HEARTBEAT | |
513 | bool "Heartbeat LED" | |
5a4053b2 | 514 | depends on SH_MPC1211 || SH_SH03 || \ |
e65fa9f5 | 515 | SOLUTION_ENGINE || \ |
3b4d9539 PM |
516 | SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK || \ |
517 | SH_R7780RP | |
1da177e4 | 518 | help |
cad82448 PM |
519 | Use the power-on LED on your machine as a load meter. The exact |
520 | behavior is platform-dependent, but normally the flash frequency is | |
521 | a hyperbolic function of the 5-minute load average. | |
1da177e4 | 522 | |
9f5e8eee PM |
523 | source "arch/sh/drivers/Kconfig" |
524 | ||
cad82448 | 525 | endmenu |
1da177e4 | 526 | |
cad82448 PM |
527 | config ISA_DMA_API |
528 | bool | |
05efc67d | 529 | depends on SH_MPC1211 |
cad82448 | 530 | default y |
1da177e4 | 531 | |
cad82448 PM |
532 | menu "Kernel features" |
533 | ||
91b91d01 PM |
534 | source kernel/Kconfig.hz |
535 | ||
cad82448 PM |
536 | config KEXEC |
537 | bool "kexec system call (EXPERIMENTAL)" | |
538 | depends on EXPERIMENTAL | |
1da177e4 | 539 | help |
cad82448 PM |
540 | kexec is a system call that implements the ability to shutdown your |
541 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 542 | but it is independent of the system firmware. And like a reboot |
cad82448 PM |
543 | you can start any kernel with it, not just Linux. |
544 | ||
1f1332f7 | 545 | The name comes from the similarity to the exec system call. |
cad82448 PM |
546 | |
547 | It is an ongoing process to be certain the hardware in a machine | |
548 | is properly shutdown, so do not be surprised if this code does not | |
549 | initially work for you. It may help to enable device hotplugging | |
550 | support. As of this writing the exact hardware interface is | |
551 | strongly in flux, so no good recommendation can be made. | |
552 | ||
1da177e4 LT |
553 | config SMP |
554 | bool "Symmetric multi-processing support" | |
555 | ---help--- | |
556 | This enables support for systems with more than one CPU. If you have | |
557 | a system with only one CPU, like most personal computers, say N. If | |
558 | you have a system with more than one CPU, say Y. | |
559 | ||
560 | If you say N here, the kernel will run on single and multiprocessor | |
561 | machines, but will use only one CPU of a multiprocessor machine. If | |
562 | you say Y here, the kernel will run on many, but not all, | |
563 | singleprocessor machines. On a singleprocessor machine, the kernel | |
564 | will run faster if you say N here. | |
565 | ||
566 | People using multiprocessor machines who say Y here should also say | |
567 | Y to "Enhanced Real Time Clock Support", below. | |
568 | ||
569 | See also the <file:Documentation/smp.txt>, | |
570 | <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available | |
571 | at <http://www.tldp.org/docs.html#howto>. | |
572 | ||
573 | If you don't know what to do here, say N. | |
574 | ||
575 | config NR_CPUS | |
576 | int "Maximum number of CPUs (2-32)" | |
577 | range 2 32 | |
578 | depends on SMP | |
579 | default "2" | |
580 | help | |
581 | This allows you to specify the maximum number of CPUs which this | |
582 | kernel will support. The maximum supported value is 32 and the | |
583 | minimum value which makes sense is 2. | |
584 | ||
585 | This is purely to save memory - each supported CPU adds | |
586 | approximately eight kilobytes to the kernel image. | |
587 | ||
91b91d01 PM |
588 | source "kernel/Kconfig.preempt" |
589 | ||
c80d79d7 YG |
590 | config NODES_SHIFT |
591 | int | |
592 | default "1" | |
593 | depends on NEED_MULTIPLE_NODES | |
594 | ||
cad82448 | 595 | endmenu |
1da177e4 | 596 | |
cad82448 | 597 | menu "Boot options" |
1da177e4 | 598 | |
cad82448 PM |
599 | config ZERO_PAGE_OFFSET |
600 | hex "Zero page offset" | |
601 | default "0x00004000" if SH_MPC1211 || SH_SH03 | |
7a847f81 PM |
602 | default "0x00010000" if PAGE_SIZE_64KB |
603 | default "0x00002000" if PAGE_SIZE_8KB | |
cad82448 | 604 | default "0x00001000" |
1da177e4 | 605 | help |
cad82448 | 606 | This sets the default offset of zero page. |
1da177e4 | 607 | |
cad82448 PM |
608 | config BOOT_LINK_OFFSET |
609 | hex "Link address offset for booting" | |
610 | default "0x00800000" | |
611 | help | |
612 | This option allows you to set the link address offset of the zImage. | |
613 | This can be useful if you are on a board which has a small amount of | |
614 | memory. | |
1da177e4 | 615 | |
cad82448 PM |
616 | config UBC_WAKEUP |
617 | bool "Wakeup UBC on startup" | |
618 | help | |
619 | Selecting this option will wakeup the User Break Controller (UBC) on | |
620 | startup. Although the UBC is left in an awake state when the processor | |
621 | comes up, some boot loaders misbehave by putting the UBC to sleep in a | |
622 | power saving state, which causes issues with things like ptrace(). | |
1da177e4 | 623 | |
cad82448 | 624 | If unsure, say N. |
1da177e4 | 625 | |
cad82448 PM |
626 | config CMDLINE_BOOL |
627 | bool "Default bootloader kernel arguments" | |
1da177e4 | 628 | |
cad82448 PM |
629 | config CMDLINE |
630 | string "Initial kernel command string" | |
631 | depends on CMDLINE_BOOL | |
632 | default "console=ttySC1,115200" | |
1da177e4 LT |
633 | |
634 | endmenu | |
635 | ||
cad82448 | 636 | menu "Bus options" |
1da177e4 LT |
637 | |
638 | # Even on SuperH devices which don't have an ISA bus, | |
639 | # this variable helps the PCMCIA modules handle | |
640 | # IRQ requesting properly -- Greg Banks. | |
641 | # | |
642 | # Though we're generally not interested in it when | |
643 | # we're not using PCMCIA, so we make it dependent on | |
644 | # PCMCIA outright. -- PFM. | |
645 | config ISA | |
646 | bool | |
cad82448 | 647 | default y if PCMCIA |
1da177e4 LT |
648 | help |
649 | Find out whether you have ISA slots on your motherboard. ISA is the | |
650 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
651 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
652 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
653 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
654 | ||
655 | config EISA | |
656 | bool | |
657 | ---help--- | |
658 | The Extended Industry Standard Architecture (EISA) bus was | |
659 | developed as an open alternative to the IBM MicroChannel bus. | |
660 | ||
661 | The EISA bus provided some of the features of the IBM MicroChannel | |
662 | bus while maintaining backward compatibility with cards made for | |
663 | the older ISA bus. The EISA bus saw limited use between 1988 and | |
664 | 1995 when it was made obsolete by the PCI bus. | |
665 | ||
666 | Say Y here if you are building a kernel for an EISA-based machine. | |
667 | ||
668 | Otherwise, say N. | |
669 | ||
670 | config MCA | |
671 | bool | |
672 | help | |
673 | MicroChannel Architecture is found in some IBM PS/2 machines and | |
674 | laptops. It is a bus system similar to PCI or ISA. See | |
675 | <file:Documentation/mca.txt> (and especially the web page given | |
676 | there) before attempting to build an MCA bus kernel. | |
677 | ||
678 | config SBUS | |
679 | bool | |
680 | ||
cad82448 PM |
681 | config SUPERHYWAY |
682 | tristate "SuperHyway Bus support" | |
683 | depends on CPU_SUBTYPE_SH4_202 | |
1da177e4 LT |
684 | |
685 | source "arch/sh/drivers/pci/Kconfig" | |
686 | ||
687 | source "drivers/pci/Kconfig" | |
688 | ||
689 | source "drivers/pcmcia/Kconfig" | |
690 | ||
691 | source "drivers/pci/hotplug/Kconfig" | |
692 | ||
693 | endmenu | |
694 | ||
695 | menu "Executable file formats" | |
696 | ||
697 | source "fs/Kconfig.binfmt" | |
698 | ||
699 | endmenu | |
700 | ||
3aa770e7 AS |
701 | menu "Power management options (EXPERIMENTAL)" |
702 | depends on EXPERIMENTAL | |
703 | ||
704 | source kernel/power/Kconfig | |
705 | ||
3aa770e7 AS |
706 | endmenu |
707 | ||
d5950b43 SR |
708 | source "net/Kconfig" |
709 | ||
1da177e4 LT |
710 | source "drivers/Kconfig" |
711 | ||
712 | source "fs/Kconfig" | |
713 | ||
714 | source "arch/sh/oprofile/Kconfig" | |
715 | ||
716 | source "arch/sh/Kconfig.debug" | |
717 | ||
718 | source "security/Kconfig" | |
719 | ||
720 | source "crypto/Kconfig" | |
721 | ||
722 | source "lib/Kconfig" |