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[deliverable/linux.git] / arch / sh / Kconfig
CommitLineData
1da177e4 1config SUPERH
ea0e1a9a 2 def_bool y
6a108a14 3 select EXPERT
6d803ba7 4 select CLKDEV_LOOKUP
86e4dd5a 5 select HAVE_IDE if HAS_IOPORT
95f72d1e 6 select HAVE_MEMBLOCK
534cfbee 7 select HAVE_MEMBLOCK_NODE_MAP
42d4b839 8 select HAVE_OPROFILE
9de90ac2 9 select HAVE_GENERIC_DMA_COHERENT
d7b01f78 10 select HAVE_ARCH_TRACEHOOK
f802d969 11 select HAVE_DMA_API_DEBUG
73c926be 12 select HAVE_DMA_ATTRS
e360adbe 13 select HAVE_IRQ_WORK
cdd6c482 14 select HAVE_PERF_EVENTS
df013ffb 15 select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
72f0c137 16 select PERF_USE_VMALLOC
df8ce259 17 select HAVE_KERNEL_GZIP
07e88e1b
PM
18 select HAVE_KERNEL_BZIP2
19 select HAVE_KERNEL_LZMA
50cfa79d 20 select HAVE_KERNEL_XZ
c7b16efb 21 select HAVE_KERNEL_LZO
a74f7e04 22 select HAVE_SYSCALL_TRACEPOINTS
eaaaeef3 23 select HAVE_REGS_AND_STACK_ACCESS_API
57b81330
PM
24 select HAVE_GENERIC_HARDIRQS
25 select HAVE_SPARSE_IRQ
ed170924 26 select IRQ_FORCED_THREADING
6eac1af0 27 select RTC_LIB
f01789c6 28 select GENERIC_ATOMIC64
3d44ae40 29 select GENERIC_IRQ_SHOW
1da177e4
LT
30 help
31 The SuperH is a RISC processor targeted for use in embedded systems
32 and consumer electronics; it was also used in the Sega Dreamcast
33 gaming console. The SuperH port has a home page at
34 <http://www.linux-sh.org/>.
35
39d28a2d 36config SUPERH32
3cc000b5 37 def_bool ARCH = "sh"
d39f5450
CS
38 select HAVE_KPROBES
39 select HAVE_KRETPROBES
6d63e73d 40 select HAVE_IOREMAP_PROT if MMU && !X2TLB
694f94f2 41 select HAVE_FUNCTION_TRACER
fad57feb
MF
42 select HAVE_FTRACE_MCOUNT_RECORD
43 select HAVE_DYNAMIC_FTRACE
c1340c05 44 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
e4b053d9 45 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
327933f5 46 select HAVE_FUNCTION_GRAPH_TRACER
ab6e570b 47 select HAVE_ARCH_KGDB
6fbfe8d7 48 select HAVE_HW_BREAKPOINT
0102752e 49 select HAVE_MIXED_BREAKPOINTS_REGS
e583d6b3 50 select PERF_EVENTS
8dafc346 51 select ARCH_HIBERNATION_POSSIBLE if MMU
57b81330 52 select SPARSE_IRQ
ea0e1a9a
PM
53
54config SUPERH64
3cc000b5 55 def_bool ARCH = "sh64"
39d28a2d 56
f42b7e3d
PM
57config ARCH_DEFCONFIG
58 string
59 default "arch/sh/configs/shx3_defconfig" if SUPERH32
60 default "arch/sh/configs/cayman_defconfig" if SUPERH64
61
1da177e4 62config RWSEM_GENERIC_SPINLOCK
d7ef4fb3 63 def_bool y
1da177e4
LT
64
65config RWSEM_XCHGADD_ALGORITHM
66 bool
67
fa691511
PM
68config GENERIC_BUG
69 def_bool y
a82d53ec 70 depends on BUG && SUPERH32
fa691511 71
3767f3f1
PM
72config GENERIC_CSUM
73 def_bool y
74 depends on SUPERH64
75
e2268c71 76config GENERIC_HWEIGHT
d7ef4fb3 77 def_bool y
e2268c71 78
2eb2a436
PM
79config IRQ_PER_CPU
80 def_bool y
81
2967dab1
MD
82config GENERIC_GPIO
83 def_bool n
84
1da177e4 85config GENERIC_CALIBRATE_DELAY
cf204fa7 86 bool
1da177e4 87
57be2b48 88config GENERIC_CLOCKEVENTS
938edae1 89 def_bool y
57be2b48 90
8c24594d
PM
91config GENERIC_CLOCKEVENTS_BROADCAST
92 bool
93
6d134b9e
PM
94config GENERIC_CMOS_UPDATE
95 def_bool y
96 depends on SH_SH03 || SH_DREAMCAST
97
bdcab87b
PM
98config GENERIC_LOCKBREAK
99 def_bool y
100 depends on SMP && PREEMPT
101
af998a9a
MD
102config ARCH_SUSPEND_POSSIBLE
103 def_bool n
104
105config ARCH_HIBERNATION_POSSIBLE
106 def_bool n
357d5946 107
0a9b0db1
PM
108config SYS_SUPPORTS_APM_EMULATION
109 bool
af998a9a 110 select ARCH_SUSPEND_POSSIBLE
357d5946 111
ffb4a73d
PM
112config SYS_SUPPORTS_HUGETLBFS
113 bool
114
357d5946
PM
115config SYS_SUPPORTS_SMP
116 bool
117
118config SYS_SUPPORTS_NUMA
119 bool
120
121config SYS_SUPPORTS_PCI
122 bool
0a9b0db1 123
f5ad881b
PM
124config SYS_SUPPORTS_CMT
125 bool
126
d5ed4c2e
MD
127config SYS_SUPPORTS_MTU2
128 bool
129
9570ef20
MD
130config SYS_SUPPORTS_TMU
131 bool
132
afbfb52e 133config STACKTRACE_SUPPORT
d7ef4fb3 134 def_bool y
afbfb52e
PM
135
136config LOCKDEP_SUPPORT
d7ef4fb3 137 def_bool y
afbfb52e 138
5a89f1ad
PM
139config HAVE_LATENCYTOP_SUPPORT
140 def_bool y
5a89f1ad 141
f0d1b0b3 142config ARCH_HAS_ILOG2_U32
d7ef4fb3 143 def_bool n
f0d1b0b3
DH
144
145config ARCH_HAS_ILOG2_U64
d7ef4fb3 146 def_bool n
f0d1b0b3 147
e257ad06
PM
148config ARCH_NO_VIRT_TO_BUS
149 def_bool y
150
e869a90e
PM
151config ARCH_HAS_DEFAULT_IDLE
152 def_bool y
153
2e046b94
PM
154config ARCH_HAS_CPU_IDLE_WAIT
155 def_bool y
156
86e4dd5a 157config NO_IOPORT
37b7a978 158 def_bool !PCI
4e2b1084 159 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN
86e4dd5a 160
e7cc9a73
MD
161config IO_TRAPPED
162 bool
163
01be5d63
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164config DMA_COHERENT
165 bool
166
167config DMA_NONCOHERENT
168 def_bool !DMA_COHERENT
169
5cabbb62
FT
170config NEED_DMA_MAP_STATE
171 def_bool DMA_NONCOHERENT
172
18e98307
FT
173config NEED_SG_DMA_LENGTH
174 def_bool y
175
1da177e4
LT
176source "init/Kconfig"
177
dc52ddc0
MH
178source "kernel/Kconfig.freezer"
179
1da177e4
LT
180menu "System type"
181
b5f42db0
PM
182#
183# Processor families
184#
185config CPU_SH2
186 bool
187
188config CPU_SH2A
189 bool
190 select CPU_SH2
e2fcf74f 191 select UNCACHED_MAPPING
b5f42db0
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192
193config CPU_SH3
194 bool
195 select CPU_HAS_INTEVT
196 select CPU_HAS_SR_RB
4fa48e17 197 select SYS_SUPPORTS_TMU
b5f42db0
PM
198
199config CPU_SH4
200 bool
201 select CPU_HAS_INTEVT
202 select CPU_HAS_SR_RB
b5f42db0 203 select CPU_HAS_FPU if !CPU_SH4AL_DSP
4fa48e17 204 select SYS_SUPPORTS_TMU
ffb4a73d 205 select SYS_SUPPORTS_HUGETLBFS if MMU
b5f42db0
PM
206
207config CPU_SH4A
208 bool
209 select CPU_SH4
210
211config CPU_SH4AL_DSP
212 bool
213 select CPU_SH4A
214 select CPU_HAS_DSP
215
ea0e1a9a
PM
216config CPU_SH5
217 bool
218 select CPU_HAS_FPU
add47067 219 select SYS_SUPPORTS_TMU
ffb4a73d 220 select SYS_SUPPORTS_HUGETLBFS if MMU
ea0e1a9a 221
b5f42db0
PM
222config CPU_SHX2
223 bool
224
225config CPU_SHX3
226 bool
01be5d63 227 select DMA_COHERENT
4b478ee2
PM
228 select SYS_SUPPORTS_SMP
229 select SYS_SUPPORTS_NUMA
b5f42db0 230
dc65a977
PM
231config ARCH_SHMOBILE
232 bool
77594912 233 select ARCH_SUSPEND_POSSIBLE
ac2c596b
MD
234 select PM
235 select PM_RUNTIME
dc65a977 236
86c8c047
MF
237config CPU_HAS_PMU
238 depends on CPU_SH4 || CPU_SH4A
239 default y
240 bool
241
3cc000b5
PM
242if SUPERH32
243
b5f42db0
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244choice
245 prompt "Processor sub-type selection"
246
247#
248# Processor subtypes
249#
250
251# SH-2 Processor Support
252
253config CPU_SUBTYPE_SH7619
254 bool "Support SH7619 processor"
255 select CPU_SH2
f5ad881b 256 select SYS_SUPPORTS_CMT
b5f42db0
PM
257
258# SH-2A Processor Support
259
2825999e
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260config CPU_SUBTYPE_SH7201
261 bool "Support SH7201 processor"
262 select CPU_SH2A
263 select CPU_HAS_FPU
da107c6e 264 select SYS_SUPPORTS_MTU2
2825999e 265
6d01f510
PM
266config CPU_SUBTYPE_SH7203
267 bool "Support SH7203 processor"
268 select CPU_SH2A
74d99a5e 269 select CPU_HAS_FPU
f5ad881b 270 select SYS_SUPPORTS_CMT
da107c6e 271 select SYS_SUPPORTS_MTU2
f020c92d 272 select ARCH_WANT_OPTIONAL_GPIOLIB
6d01f510 273
b5f42db0
PM
274config CPU_SUBTYPE_SH7206
275 bool "Support SH7206 processor"
276 select CPU_SH2A
f5ad881b 277 select SYS_SUPPORTS_CMT
da107c6e 278 select SYS_SUPPORTS_MTU2
b5f42db0 279
a8f67f4b
PM
280config CPU_SUBTYPE_SH7263
281 bool "Support SH7263 processor"
282 select CPU_SH2A
74d99a5e 283 select CPU_HAS_FPU
f5ad881b 284 select SYS_SUPPORTS_CMT
da107c6e 285 select SYS_SUPPORTS_MTU2
a8f67f4b 286
2ad69908
PM
287config CPU_SUBTYPE_MXG
288 bool "Support MX-G processor"
289 select CPU_SH2A
da107c6e 290 select SYS_SUPPORTS_MTU2
2ad69908
PM
291 help
292 Select MX-G if running on an R8A03022BG part.
293
b5f42db0
PM
294# SH-3 Processor Support
295
296config CPU_SUBTYPE_SH7705
297 bool "Support SH7705 processor"
298 select CPU_SH3
299
300config CPU_SUBTYPE_SH7706
301 bool "Support SH7706 processor"
302 select CPU_SH3
303 help
304 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
305
306config CPU_SUBTYPE_SH7707
307 bool "Support SH7707 processor"
308 select CPU_SH3
309 help
310 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
311
312config CPU_SUBTYPE_SH7708
313 bool "Support SH7708 processor"
314 select CPU_SH3
315 help
316 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
317 if you have a 100 Mhz SH-3 HD6417708R CPU.
318
319config CPU_SUBTYPE_SH7709
320 bool "Support SH7709 processor"
321 select CPU_SH3
322 help
323 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
324
325config CPU_SUBTYPE_SH7710
326 bool "Support SH7710 processor"
327 select CPU_SH3
328 select CPU_HAS_DSP
329 help
330 Select SH7710 if you have a SH3-DSP SH7710 CPU.
331
332config CPU_SUBTYPE_SH7712
333 bool "Support SH7712 processor"
334 select CPU_SH3
335 select CPU_HAS_DSP
336 help
337 Select SH7712 if you have a SH3-DSP SH7712 CPU.
338
339config CPU_SUBTYPE_SH7720
340 bool "Support SH7720 processor"
341 select CPU_SH3
342 select CPU_HAS_DSP
2b23a882 343 select SYS_SUPPORTS_CMT
f020c92d 344 select ARCH_WANT_OPTIONAL_GPIOLIB
e3e9887e 345 select USB_ARCH_HAS_OHCI
7b61ca5d 346 select USB_OHCI_SH if USB_OHCI_HCD
b5f42db0
PM
347 help
348 Select SH7720 if you have a SH3-DSP SH7720 CPU.
349
31a49c4b
YS
350config CPU_SUBTYPE_SH7721
351 bool "Support SH7721 processor"
352 select CPU_SH3
353 select CPU_HAS_DSP
2b23a882 354 select SYS_SUPPORTS_CMT
e3e9887e 355 select USB_ARCH_HAS_OHCI
7b61ca5d 356 select USB_OHCI_SH if USB_OHCI_HCD
31a49c4b
YS
357 help
358 Select SH7721 if you have a SH3-DSP SH7721 CPU.
359
b5f42db0
PM
360# SH-4 Processor Support
361
362config CPU_SUBTYPE_SH7750
363 bool "Support SH7750 processor"
364 select CPU_SH4
365 help
366 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
367
368config CPU_SUBTYPE_SH7091
369 bool "Support SH7091 processor"
370 select CPU_SH4
371 help
372 Select SH7091 if you have an SH-4 based Sega device (such as
373 the Dreamcast, Naomi, and Naomi 2).
374
375config CPU_SUBTYPE_SH7750R
376 bool "Support SH7750R processor"
377 select CPU_SH4
378
379config CPU_SUBTYPE_SH7750S
380 bool "Support SH7750S processor"
381 select CPU_SH4
382
383config CPU_SUBTYPE_SH7751
384 bool "Support SH7751 processor"
385 select CPU_SH4
386 help
387 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
388 or if you have a HD6417751R CPU.
389
390config CPU_SUBTYPE_SH7751R
391 bool "Support SH7751R processor"
392 select CPU_SH4
393
394config CPU_SUBTYPE_SH7760
395 bool "Support SH7760 processor"
396 select CPU_SH4
397
398config CPU_SUBTYPE_SH4_202
399 bool "Support SH4-202 processor"
400 select CPU_SH4
401
402# SH-4A Processor Support
403
178dd0cd
PM
404config CPU_SUBTYPE_SH7723
405 bool "Support SH7723 processor"
406 select CPU_SH4A
407 select CPU_SHX2
dc65a977 408 select ARCH_SHMOBILE
178dd0cd 409 select ARCH_SPARSEMEM_ENABLE
f5ad881b 410 select SYS_SUPPORTS_CMT
f020c92d 411 select ARCH_WANT_OPTIONAL_GPIOLIB
178dd0cd
PM
412 help
413 Select SH7723 if you have an SH-MobileR2 CPU.
414
0207a2ef
KM
415config CPU_SUBTYPE_SH7724
416 bool "Support SH7724 processor"
417 select CPU_SH4A
418 select CPU_SHX2
59fe700d 419 select ARCH_SHMOBILE
0207a2ef
KM
420 select ARCH_SPARSEMEM_ENABLE
421 select SYS_SUPPORTS_CMT
f020c92d 422 select ARCH_WANT_OPTIONAL_GPIOLIB
0207a2ef
KM
423 help
424 Select SH7724 if you have an SH-MobileR2R CPU.
425
c01f0f1a
YS
426config CPU_SUBTYPE_SH7757
427 bool "Support SH7757 processor"
428 select CPU_SH4A
429 select CPU_SHX2
f020c92d 430 select ARCH_WANT_OPTIONAL_GPIOLIB
0fe48601
YS
431 select USB_ARCH_HAS_OHCI
432 select USB_ARCH_HAS_EHCI
c01f0f1a
YS
433 help
434 Select SH7757 if you have a SH4A SH7757 CPU.
435
7d740a06
YS
436config CPU_SUBTYPE_SH7763
437 bool "Support SH7763 processor"
438 select CPU_SH4A
e3e9887e 439 select USB_ARCH_HAS_OHCI
7b61ca5d 440 select USB_OHCI_SH if USB_OHCI_HCD
7d740a06
YS
441 help
442 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
443
b5f42db0
PM
444config CPU_SUBTYPE_SH7770
445 bool "Support SH7770 processor"
446 select CPU_SH4A
447
448config CPU_SUBTYPE_SH7780
449 bool "Support SH7780 processor"
450 select CPU_SH4A
451
452config CPU_SUBTYPE_SH7785
453 bool "Support SH7785 processor"
454 select CPU_SH4A
455 select CPU_SHX2
55ba99eb
KM
456 select ARCH_SPARSEMEM_ENABLE
457 select SYS_SUPPORTS_NUMA
f020c92d 458 select ARCH_WANT_OPTIONAL_GPIOLIB
55ba99eb
KM
459
460config CPU_SUBTYPE_SH7786
461 bool "Support SH7786 processor"
462 select CPU_SH4A
37042fbd 463 select CPU_SHX3
8263a67e 464 select CPU_HAS_PTEAEX
2eb2a436 465 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
f020c92d 466 select ARCH_WANT_OPTIONAL_GPIOLIB
e3e9887e 467 select USB_ARCH_HAS_OHCI
7b61ca5d 468 select USB_OHCI_SH if USB_OHCI_HCD
e3e9887e 469 select USB_ARCH_HAS_EHCI
7b61ca5d 470 select USB_EHCI_SH if USB_EHCI_HCD
b5f42db0
PM
471
472config CPU_SUBTYPE_SHX3
473 bool "Support SH-X3 processor"
474 select CPU_SH4A
475 select CPU_SHX3
5840263e 476 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
742759ea 477 select ARCH_REQUIRE_GPIOLIB
b5f42db0
PM
478
479# SH4AL-DSP Processor Support
480
481config CPU_SUBTYPE_SH7343
482 bool "Support SH7343 processor"
483 select CPU_SH4AL_DSP
dc65a977 484 select ARCH_SHMOBILE
f5ad881b 485 select SYS_SUPPORTS_CMT
b5f42db0
PM
486
487config CPU_SUBTYPE_SH7722
488 bool "Support SH7722 processor"
489 select CPU_SH4AL_DSP
490 select CPU_SHX2
dc65a977 491 select ARCH_SHMOBILE
b5f42db0
PM
492 select ARCH_SPARSEMEM_ENABLE
493 select SYS_SUPPORTS_NUMA
f5ad881b 494 select SYS_SUPPORTS_CMT
f020c92d 495 select ARCH_WANT_OPTIONAL_GPIOLIB
9109a30e
MD
496
497config CPU_SUBTYPE_SH7366
498 bool "Support SH7366 processor"
499 select CPU_SH4AL_DSP
500 select CPU_SHX2
dc65a977 501 select ARCH_SHMOBILE
9109a30e
MD
502 select ARCH_SPARSEMEM_ENABLE
503 select SYS_SUPPORTS_NUMA
f5ad881b 504 select SYS_SUPPORTS_CMT
b5f42db0 505
3cc000b5
PM
506endchoice
507
508endif
509
510if SUPERH64
511
512choice
513 prompt "Processor sub-type selection"
514
ea0e1a9a
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515# SH-5 Processor Support
516
517config CPU_SUBTYPE_SH5_101
518 bool "Support SH5-101 processor"
519 select CPU_SH5
520
521config CPU_SUBTYPE_SH5_103
522 bool "Support SH5-103 processor"
8ef97dd7 523 select CPU_SH5
ea0e1a9a 524
b5f42db0
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525endchoice
526
3cc000b5
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527endif
528
f3d22298 529source "arch/sh/mm/Kconfig"
939a24a6 530
4690bdc7 531source "arch/sh/Kconfig.cpu"
f3d22298 532
939a24a6 533source "arch/sh/boards/Kconfig"
32351a28 534
32351a28
PM
535menu "Timer and clock configuration"
536
9570ef20
MD
537config SH_TIMER_TMU
538 bool "TMU timer driver"
f19900b2 539 depends on SYS_SUPPORTS_TMU
9570ef20 540 default y
9570ef20
MD
541 help
542 This enables the build of the TMU timer driver.
543
f5ad881b 544config SH_TIMER_CMT
f425752f
MD
545 bool "CMT timer driver"
546 depends on SYS_SUPPORTS_CMT
547 default y
f425752f
MD
548 help
549 This enables build of the CMT timer driver.
f5ad881b 550
d5ed4c2e
MD
551config SH_TIMER_MTU2
552 bool "MTU2 timer driver"
3280c886 553 depends on SYS_SUPPORTS_MTU2
d5ed4c2e 554 default y
d5ed4c2e
MD
555 help
556 This enables build of the MTU2 timer driver.
557
cad82448
PM
558config SH_PCLK_FREQ
559 int "Peripheral clock frequency (in Hz)"
8152a74b 560 depends on SH_CLK_CPG_LEGACY
9d4436a6 561 default "31250000" if CPU_SUBTYPE_SH7619
8152a74b
PM
562 default "33333333" if CPU_SUBTYPE_SH7770 || \
563 CPU_SUBTYPE_SH7760 || \
564 CPU_SUBTYPE_SH7705 || \
565 CPU_SUBTYPE_SH7203 || \
566 CPU_SUBTYPE_SH7206 || \
567 CPU_SUBTYPE_SH7263 || \
43a1839c 568 CPU_SUBTYPE_MXG
05627486 569 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
cad82448 570 default "66000000" if CPU_SUBTYPE_SH4_202
05627486 571 default "50000000"
1da177e4 572 help
cad82448
PM
573 This option is used to specify the peripheral clock frequency.
574 This is necessary for determining the reference clock value on
575 platforms lacking an RTC.
1da177e4 576
36aa1e32
PM
577config SH_CLK_CPG
578 def_bool y
579
253b0887 580config SH_CLK_CPG_LEGACY
36aa1e32 581 depends on SH_CLK_CPG
43a1839c 582 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
5924ad0d 583 !CPU_SHX3 && !CPU_SUBTYPE_SH7757
253b0887 584
57be2b48
PM
585source "kernel/time/Kconfig"
586
32351a28
PM
587endmenu
588
cad82448
PM
589menu "CPU Frequency scaling"
590
591source "drivers/cpufreq/Kconfig"
1da177e4 592
cad82448
PM
593config SH_CPU_FREQ
594 tristate "SuperH CPU Frequency driver"
cb5ec75b 595 depends on CPU_FREQ
cad82448 596 select CPU_FREQ_TABLE
1da177e4 597 help
8a655053
PM
598 This adds the cpufreq driver for SuperH. Any CPU that supports
599 clock rate rounding through the clock framework can use this
600 driver. While it will make the kernel slightly larger, this is
601 harmless for CPUs that don't support rate rounding. The driver
602 will also generate a notice in the boot log before disabling
603 itself if the CPU in question is not capable of rate rounding.
1da177e4 604
cad82448 605 For details, take a look at <file:Documentation/cpu-freq>.
1da177e4
LT
606
607 If unsure, say N.
608
cad82448
PM
609endmenu
610
9f5e8eee
PM
611source "arch/sh/drivers/Kconfig"
612
cad82448 613endmenu
1da177e4 614
cad82448
PM
615menu "Kernel features"
616
91b91d01
PM
617source kernel/Kconfig.hz
618
cad82448
PM
619config KEXEC
620 bool "kexec system call (EXPERIMENTAL)"
f36b59d1 621 depends on SUPERH32 && EXPERIMENTAL && MMU
1da177e4 622 help
cad82448
PM
623 kexec is a system call that implements the ability to shutdown your
624 current kernel, and to start another kernel. It is like a reboot
1f1332f7 625 but it is independent of the system firmware. And like a reboot
cad82448
PM
626 you can start any kernel with it, not just Linux.
627
1f1332f7 628 The name comes from the similarity to the exec system call.
cad82448
PM
629
630 It is an ongoing process to be certain the hardware in a machine
631 is properly shutdown, so do not be surprised if this code does not
632 initially work for you. It may help to enable device hotplugging
633 support. As of this writing the exact hardware interface is
634 strongly in flux, so no good recommendation can be made.
635
4d5ade5b
PM
636config CRASH_DUMP
637 bool "kernel crash dumps (EXPERIMENTAL)"
d523e1ae 638 depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
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639 help
640 Generate crash dump after being started by kexec.
641 This should be normally only set in special crash dump kernels
642 which are loaded in the main kernel with kexec-tools into
643 a specially reserved region and then later executed after
644 a crash by kdump/kexec. The crash dump kernel must be compiled
645 to a memory address not used by the main kernel using
e66ac3f2 646 PHYSICAL_START.
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647
648 For more details see Documentation/kdump/kdump.txt
649
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650config KEXEC_JUMP
651 bool "kexec jump (EXPERIMENTAL)"
652 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
653 help
654 Jump between original kernel and kexeced kernel and invoke
655 code via KEXEC
656
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657config PHYSICAL_START
658 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
659 default MEMORY_START
660 ---help---
661 This gives the physical address where the kernel is loaded
662 and is ordinarily the same as MEMORY_START.
663
664 Different values are primarily used in the case of kexec on panic
665 where the fail safe kernel needs to run at a different address
666 than the panic-ed kernel.
667
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668config SECCOMP
669 bool "Enable seccomp to safely compute untrusted bytecode"
670 depends on PROC_FS
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671 help
672 This kernel feature is useful for number crunching applications
673 that may need to compute untrusted bytecode during their
674 execution. By using pipes or other transports made available to
675 the process as file descriptors supporting the read/write
676 syscalls, it's possible to isolate those applications in
677 their own address space using seccomp. Once seccomp is
678 enabled via prctl, it cannot be disabled and the task is only
679 allowed to execute a few safe syscalls defined by each seccomp
680 mode.
681
682 If unsure, say N.
683
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684config SMP
685 bool "Symmetric multi-processing support"
357d5946 686 depends on SYS_SUPPORTS_SMP
490f5de5 687 select USE_GENERIC_SMP_HELPERS
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688 ---help---
689 This enables support for systems with more than one CPU. If you have
690 a system with only one CPU, like most personal computers, say N. If
691 you have a system with more than one CPU, say Y.
692
693 If you say N here, the kernel will run on single and multiprocessor
694 machines, but will use only one CPU of a multiprocessor machine. If
695 you say Y here, the kernel will run on many, but not all,
696 singleprocessor machines. On a singleprocessor machine, the kernel
697 will run faster if you say N here.
698
699 People using multiprocessor machines who say Y here should also say
700 Y to "Enhanced Real Time Clock Support", below.
701
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702 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
703 available at <http://www.tldp.org/docs.html#howto>.
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704
705 If you don't know what to do here, say N.
706
707config NR_CPUS
708 int "Maximum number of CPUs (2-32)"
709 range 2 32
710 depends on SMP
2eb2a436 711 default "4" if CPU_SUBTYPE_SHX3
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712 default "2"
713 help
714 This allows you to specify the maximum number of CPUs which this
715 kernel will support. The maximum supported value is 32 and the
716 minimum value which makes sense is 2.
717
718 This is purely to save memory - each supported CPU adds
719 approximately eight kilobytes to the kernel image.
720
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721config HOTPLUG_CPU
722 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
723 depends on SMP && HOTPLUG && EXPERIMENTAL
724 help
725 Say Y here to experiment with turning CPUs off and on. CPUs
726 can be controlled through /sys/devices/system/cpu.
727
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728source "kernel/Kconfig.preempt"
729
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730config GUSA
731 def_bool y
1efe4ce3 732 depends on !SMP && SUPERH32
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733 help
734 This enables support for gUSA (general UserSpace Atomicity).
735 This is the default implementation for both UP and non-ll/sc
736 CPUs, and is used by the libc, amongst others.
737
738 For additional information, design information can be found
739 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
740
741 This should only be disabled for special cases where alternate
742 atomicity implementations exist.
743
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744config GUSA_RB
745 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
746 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
747 help
748 Enabling this option will allow the kernel to implement some
692105b8 749 atomic operations using a software implementation of load-locked/
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750 store-conditional (LLSC). On machines which do not have hardware
751 LLSC, this should be more efficient than the other alternative of
692105b8 752 disabling interrupts around the atomic sequence.
1efe4ce3 753
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754config HW_PERF_EVENTS
755 bool "Enable hardware performance counter support for perf events"
756 depends on PERF_EVENTS && CPU_HAS_PMU
757 default y
758 help
759 Enable hardware performance counter support for perf events. If
760 disabled, perf events will use software events only.
761
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762source "drivers/sh/Kconfig"
763
cad82448 764endmenu
1da177e4 765
cad82448 766menu "Boot options"
1da177e4 767
cad82448 768config ZERO_PAGE_OFFSET
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769 hex
770 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
771 SH_7751_SOLUTION_ENGINE
772 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
7a847f81 773 default "0x00002000" if PAGE_SIZE_8KB
cad82448 774 default "0x00001000"
1da177e4 775 help
cad82448 776 This sets the default offset of zero page.
1da177e4 777
cad82448 778config BOOT_LINK_OFFSET
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779 hex
780 default "0x00210000" if SH_SHMIN
a2e76c80 781 default "0x00400000" if SH_CAYMAN
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782 default "0x00810000" if SH_7780_SOLUTION_ENGINE
783 default "0x009e0000" if SH_TITAN
784 default "0x01800000" if SH_SDK7780
785 default "0x02000000" if SH_EDOSK7760
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786 default "0x00800000"
787 help
788 This option allows you to set the link address offset of the zImage.
789 This can be useful if you are on a board which has a small amount of
790 memory.
1da177e4 791
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792config ENTRY_OFFSET
793 hex
794 default "0x00001000" if PAGE_SIZE_4KB
795 default "0x00002000" if PAGE_SIZE_8KB
796 default "0x00004000" if PAGE_SIZE_16KB
797 default "0x00010000" if PAGE_SIZE_64KB
798 default "0x00000000"
799
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800config ROMIMAGE_MMCIF
801 bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
802 depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
803 help
804 Say Y here to include experimental MMCIF loading code in
805 romImage. With this enabled it is possible to write the romImage
806 kernel image to an MMC card and boot the kernel straight from
807 the reset vector. At reset the processor Mask ROM will load the
808 first part of the romImage which in turn loads the rest the kernel
809 image to RAM using the MMCIF hardware block.
810
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811choice
812 prompt "Kernel command line"
813 optional
814 default CMDLINE_OVERWRITE
815 help
816 Setting this option allows the kernel command line arguments
817 to be set.
818
819config CMDLINE_OVERWRITE
820 bool "Overwrite bootloader kernel arguments"
821 help
822 Given string will overwrite any arguments passed in by
823 a bootloader.
824
825config CMDLINE_EXTEND
826 bool "Extend bootloader kernel arguments"
827 help
828 Given string will be concatenated with arguments passed in
829 by a bootloader.
830
831endchoice
1da177e4 832
cad82448 833config CMDLINE
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834 string "Kernel command line arguments string"
835 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
cad82448 836 default "console=ttySC1,115200"
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837
838endmenu
839
cad82448 840menu "Bus options"
1da177e4 841
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842config SUPERHYWAY
843 tristate "SuperHyway Bus support"
844 depends on CPU_SUBTYPE_SH4_202
1da177e4 845
17be2d2b 846config MAPLE
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847 bool "Maple Bus support"
848 depends on SH_DREAMCAST
849 help
850 The Maple Bus is SEGA's serial communication bus for peripherals
851 on the Dreamcast. Without this bus support you won't be able to
852 get your Dreamcast keyboard etc to work, so most users
853 probably want to say 'Y' here, unless you are only using the
854 Dreamcast with a serial line terminal or a remote network
855 connection.
17be2d2b 856
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857config PCI
858 bool "PCI support"
859 depends on SYS_SUPPORTS_PCI
320e68da 860 select PCI_DOMAINS
43db595e 861 select GENERIC_PCI_IOMAP
1e05b62a 862 select NO_GENERIC_PCI_IOPORT_MAP
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863 help
864 Find out whether you have a PCI motherboard. PCI is the name of a
865 bus system, i.e. the way the CPU talks to the other stuff inside
866 your box. If you have PCI, say Y, otherwise N.
1da177e4 867
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868config PCI_DOMAINS
869 bool
870
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871source "drivers/pci/pcie/Kconfig"
872
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873source "drivers/pci/Kconfig"
874
875source "drivers/pcmcia/Kconfig"
876
877source "drivers/pci/hotplug/Kconfig"
878
879endmenu
880
881menu "Executable file formats"
882
883source "fs/Kconfig.binfmt"
884
885endmenu
886
3aa770e7 887menu "Power management options (EXPERIMENTAL)"
af998a9a 888depends on EXPERIMENTAL
f4cb5700 889
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890source "kernel/power/Kconfig"
891
892source "drivers/cpuidle/Kconfig"
3aa770e7 893
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894endmenu
895
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896source "net/Kconfig"
897
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898source "drivers/Kconfig"
899
900source "fs/Kconfig"
901
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902source "arch/sh/Kconfig.debug"
903
904source "security/Kconfig"
905
906source "crypto/Kconfig"
907
908source "lib/Kconfig"
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