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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
6mainmenu "Linux/SuperH Kernel Configuration"
7
8config SUPERH
ea0e1a9a 9 def_bool y
7a440c95 10 select EMBEDDED
9483a578 11 select HAVE_CLK
86e4dd5a 12 select HAVE_IDE if HAS_IOPORT
95f72d1e 13 select HAVE_MEMBLOCK
42d4b839 14 select HAVE_OPROFILE
9de90ac2 15 select HAVE_GENERIC_DMA_COHERENT
d7b01f78 16 select HAVE_ARCH_TRACEHOOK
f802d969 17 select HAVE_DMA_API_DEBUG
73c926be 18 select HAVE_DMA_ATTRS
e360adbe 19 select HAVE_IRQ_WORK
cdd6c482 20 select HAVE_PERF_EVENTS
72f0c137 21 select PERF_USE_VMALLOC
df8ce259 22 select HAVE_KERNEL_GZIP
07e88e1b
PM
23 select HAVE_KERNEL_BZIP2
24 select HAVE_KERNEL_LZMA
c7b16efb 25 select HAVE_KERNEL_LZO
a74f7e04 26 select HAVE_SYSCALL_TRACEPOINTS
eaaaeef3 27 select HAVE_REGS_AND_STACK_ACCESS_API
6eac1af0 28 select RTC_LIB
f01789c6 29 select GENERIC_ATOMIC64
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
ea0e1a9a
PM
52
53config SUPERH64
3cc000b5 54 def_bool ARCH = "sh64"
39d28a2d 55
f42b7e3d
PM
56config ARCH_DEFCONFIG
57 string
58 default "arch/sh/configs/shx3_defconfig" if SUPERH32
59 default "arch/sh/configs/cayman_defconfig" if SUPERH64
60
1da177e4 61config RWSEM_GENERIC_SPINLOCK
d7ef4fb3 62 def_bool y
1da177e4
LT
63
64config RWSEM_XCHGADD_ALGORITHM
65 bool
66
fa691511
PM
67config GENERIC_BUG
68 def_bool y
a82d53ec 69 depends on BUG && SUPERH32
fa691511 70
3767f3f1
PM
71config GENERIC_CSUM
72 def_bool y
73 depends on SUPERH64
74
e2268c71 75config GENERIC_FIND_NEXT_BIT
d7ef4fb3 76 def_bool y
e2268c71
AM
77
78config GENERIC_HWEIGHT
d7ef4fb3 79 def_bool y
e2268c71 80
1da177e4 81config GENERIC_HARDIRQS
d7ef4fb3 82 def_bool y
1da177e4 83
5093c9a4
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84config GENERIC_HARDIRQS_NO__DO_IRQ
85 def_bool y
86
2eb2a436
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87config IRQ_PER_CPU
88 def_bool y
89
4b842c85
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90config SPARSE_IRQ
91 def_bool y
92 depends on SUPERH32
93
2967dab1
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94config GENERIC_GPIO
95 def_bool n
96
1da177e4 97config GENERIC_CALIBRATE_DELAY
cf204fa7 98 bool
1da177e4 99
cad82448
PM
100config GENERIC_IOMAP
101 bool
102
57be2b48 103config GENERIC_CLOCKEVENTS
938edae1 104 def_bool y
57be2b48 105
8c24594d
PM
106config GENERIC_CLOCKEVENTS_BROADCAST
107 bool
108
6d134b9e
PM
109config GENERIC_CMOS_UPDATE
110 def_bool y
111 depends on SH_SH03 || SH_DREAMCAST
112
bdcab87b
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113config GENERIC_LOCKBREAK
114 def_bool y
115 depends on SMP && PREEMPT
116
357d5946
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117config SYS_SUPPORTS_PM
118 bool
af998a9a
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119 depends on !SMP
120
121config ARCH_SUSPEND_POSSIBLE
122 def_bool n
123
124config ARCH_HIBERNATION_POSSIBLE
125 def_bool n
357d5946 126
0a9b0db1
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127config SYS_SUPPORTS_APM_EMULATION
128 bool
af998a9a 129 select ARCH_SUSPEND_POSSIBLE
357d5946 130
ffb4a73d
PM
131config SYS_SUPPORTS_HUGETLBFS
132 bool
133
357d5946
PM
134config SYS_SUPPORTS_SMP
135 bool
136
137config SYS_SUPPORTS_NUMA
138 bool
139
140config SYS_SUPPORTS_PCI
141 bool
0a9b0db1 142
f5ad881b
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143config SYS_SUPPORTS_CMT
144 bool
145
d5ed4c2e
MD
146config SYS_SUPPORTS_MTU2
147 bool
148
9570ef20
MD
149config SYS_SUPPORTS_TMU
150 bool
151
afbfb52e 152config STACKTRACE_SUPPORT
d7ef4fb3 153 def_bool y
afbfb52e
PM
154
155config LOCKDEP_SUPPORT
d7ef4fb3 156 def_bool y
afbfb52e 157
5a89f1ad
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158config HAVE_LATENCYTOP_SUPPORT
159 def_bool y
5a89f1ad 160
f0d1b0b3 161config ARCH_HAS_ILOG2_U32
d7ef4fb3 162 def_bool n
f0d1b0b3
DH
163
164config ARCH_HAS_ILOG2_U64
d7ef4fb3 165 def_bool n
f0d1b0b3 166
e257ad06
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167config ARCH_NO_VIRT_TO_BUS
168 def_bool y
169
e869a90e
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170config ARCH_HAS_DEFAULT_IDLE
171 def_bool y
172
2e046b94
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173config ARCH_HAS_CPU_IDLE_WAIT
174 def_bool y
175
86e4dd5a
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176config NO_IOPORT
177 bool
178
e7cc9a73
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179config IO_TRAPPED
180 bool
181
01be5d63
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182config DMA_COHERENT
183 bool
184
185config DMA_NONCOHERENT
186 def_bool !DMA_COHERENT
187
5cabbb62
FT
188config NEED_DMA_MAP_STATE
189 def_bool DMA_NONCOHERENT
190
18e98307
FT
191config NEED_SG_DMA_LENGTH
192 def_bool y
193
1da177e4
LT
194source "init/Kconfig"
195
dc52ddc0
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196source "kernel/Kconfig.freezer"
197
1da177e4
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198menu "System type"
199
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200#
201# Processor families
202#
203config CPU_SH2
204 bool
205
206config CPU_SH2A
207 bool
208 select CPU_SH2
209
210config CPU_SH3
211 bool
212 select CPU_HAS_INTEVT
213 select CPU_HAS_SR_RB
4fa48e17 214 select SYS_SUPPORTS_TMU
b5f42db0
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215
216config CPU_SH4
217 bool
218 select CPU_HAS_INTEVT
219 select CPU_HAS_SR_RB
b5f42db0 220 select CPU_HAS_FPU if !CPU_SH4AL_DSP
4fa48e17 221 select SYS_SUPPORTS_TMU
ffb4a73d 222 select SYS_SUPPORTS_HUGETLBFS if MMU
b5f42db0
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223
224config CPU_SH4A
225 bool
226 select CPU_SH4
227
228config CPU_SH4AL_DSP
229 bool
230 select CPU_SH4A
231 select CPU_HAS_DSP
232
ea0e1a9a
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233config CPU_SH5
234 bool
235 select CPU_HAS_FPU
add47067 236 select SYS_SUPPORTS_TMU
ffb4a73d 237 select SYS_SUPPORTS_HUGETLBFS if MMU
ea0e1a9a 238
b5f42db0
PM
239config CPU_SHX2
240 bool
241
242config CPU_SHX3
243 bool
01be5d63 244 select DMA_COHERENT
4b478ee2
PM
245 select SYS_SUPPORTS_SMP
246 select SYS_SUPPORTS_NUMA
b5f42db0 247
dc65a977
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248config ARCH_SHMOBILE
249 bool
77594912 250 select ARCH_SUSPEND_POSSIBLE
ac2c596b
MD
251 select PM
252 select PM_RUNTIME
dc65a977 253
86c8c047
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254config CPU_HAS_PMU
255 depends on CPU_SH4 || CPU_SH4A
256 default y
257 bool
258
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259if SUPERH32
260
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261choice
262 prompt "Processor sub-type selection"
263
264#
265# Processor subtypes
266#
267
268# SH-2 Processor Support
269
270config CPU_SUBTYPE_SH7619
271 bool "Support SH7619 processor"
272 select CPU_SH2
f5ad881b 273 select SYS_SUPPORTS_CMT
b5f42db0
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274
275# SH-2A Processor Support
276
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277config CPU_SUBTYPE_SH7201
278 bool "Support SH7201 processor"
279 select CPU_SH2A
280 select CPU_HAS_FPU
da107c6e 281 select SYS_SUPPORTS_MTU2
2825999e 282
6d01f510
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283config CPU_SUBTYPE_SH7203
284 bool "Support SH7203 processor"
285 select CPU_SH2A
74d99a5e 286 select CPU_HAS_FPU
f5ad881b 287 select SYS_SUPPORTS_CMT
da107c6e 288 select SYS_SUPPORTS_MTU2
6d01f510 289
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290config CPU_SUBTYPE_SH7206
291 bool "Support SH7206 processor"
292 select CPU_SH2A
f5ad881b 293 select SYS_SUPPORTS_CMT
da107c6e 294 select SYS_SUPPORTS_MTU2
b5f42db0 295
a8f67f4b
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296config CPU_SUBTYPE_SH7263
297 bool "Support SH7263 processor"
298 select CPU_SH2A
74d99a5e 299 select CPU_HAS_FPU
f5ad881b 300 select SYS_SUPPORTS_CMT
da107c6e 301 select SYS_SUPPORTS_MTU2
a8f67f4b 302
2ad69908
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303config CPU_SUBTYPE_MXG
304 bool "Support MX-G processor"
305 select CPU_SH2A
da107c6e 306 select SYS_SUPPORTS_MTU2
2ad69908
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307 help
308 Select MX-G if running on an R8A03022BG part.
309
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310# SH-3 Processor Support
311
312config CPU_SUBTYPE_SH7705
313 bool "Support SH7705 processor"
314 select CPU_SH3
315
316config CPU_SUBTYPE_SH7706
317 bool "Support SH7706 processor"
318 select CPU_SH3
319 help
320 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
321
322config CPU_SUBTYPE_SH7707
323 bool "Support SH7707 processor"
324 select CPU_SH3
325 help
326 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
327
328config CPU_SUBTYPE_SH7708
329 bool "Support SH7708 processor"
330 select CPU_SH3
331 help
332 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
333 if you have a 100 Mhz SH-3 HD6417708R CPU.
334
335config CPU_SUBTYPE_SH7709
336 bool "Support SH7709 processor"
337 select CPU_SH3
338 help
339 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
340
341config CPU_SUBTYPE_SH7710
342 bool "Support SH7710 processor"
343 select CPU_SH3
344 select CPU_HAS_DSP
345 help
346 Select SH7710 if you have a SH3-DSP SH7710 CPU.
347
348config CPU_SUBTYPE_SH7712
349 bool "Support SH7712 processor"
350 select CPU_SH3
351 select CPU_HAS_DSP
352 help
353 Select SH7712 if you have a SH3-DSP SH7712 CPU.
354
355config CPU_SUBTYPE_SH7720
356 bool "Support SH7720 processor"
357 select CPU_SH3
358 select CPU_HAS_DSP
2b23a882 359 select SYS_SUPPORTS_CMT
b5f42db0
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360 help
361 Select SH7720 if you have a SH3-DSP SH7720 CPU.
362
31a49c4b
YS
363config CPU_SUBTYPE_SH7721
364 bool "Support SH7721 processor"
365 select CPU_SH3
366 select CPU_HAS_DSP
2b23a882 367 select SYS_SUPPORTS_CMT
31a49c4b
YS
368 help
369 Select SH7721 if you have a SH3-DSP SH7721 CPU.
370
b5f42db0
PM
371# SH-4 Processor Support
372
373config CPU_SUBTYPE_SH7750
374 bool "Support SH7750 processor"
375 select CPU_SH4
376 help
377 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
378
379config CPU_SUBTYPE_SH7091
380 bool "Support SH7091 processor"
381 select CPU_SH4
382 help
383 Select SH7091 if you have an SH-4 based Sega device (such as
384 the Dreamcast, Naomi, and Naomi 2).
385
386config CPU_SUBTYPE_SH7750R
387 bool "Support SH7750R processor"
388 select CPU_SH4
389
390config CPU_SUBTYPE_SH7750S
391 bool "Support SH7750S processor"
392 select CPU_SH4
393
394config CPU_SUBTYPE_SH7751
395 bool "Support SH7751 processor"
396 select CPU_SH4
397 help
398 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
399 or if you have a HD6417751R CPU.
400
401config CPU_SUBTYPE_SH7751R
402 bool "Support SH7751R processor"
403 select CPU_SH4
404
405config CPU_SUBTYPE_SH7760
406 bool "Support SH7760 processor"
407 select CPU_SH4
408
409config CPU_SUBTYPE_SH4_202
410 bool "Support SH4-202 processor"
411 select CPU_SH4
412
413# SH-4A Processor Support
414
178dd0cd
PM
415config CPU_SUBTYPE_SH7723
416 bool "Support SH7723 processor"
417 select CPU_SH4A
418 select CPU_SHX2
dc65a977 419 select ARCH_SHMOBILE
178dd0cd 420 select ARCH_SPARSEMEM_ENABLE
f5ad881b 421 select SYS_SUPPORTS_CMT
178dd0cd
PM
422 help
423 Select SH7723 if you have an SH-MobileR2 CPU.
424
0207a2ef
KM
425config CPU_SUBTYPE_SH7724
426 bool "Support SH7724 processor"
427 select CPU_SH4A
428 select CPU_SHX2
59fe700d 429 select ARCH_SHMOBILE
0207a2ef
KM
430 select ARCH_SPARSEMEM_ENABLE
431 select SYS_SUPPORTS_CMT
432 help
433 Select SH7724 if you have an SH-MobileR2R CPU.
434
c01f0f1a
YS
435config CPU_SUBTYPE_SH7757
436 bool "Support SH7757 processor"
437 select CPU_SH4A
438 select CPU_SHX2
439 help
440 Select SH7757 if you have a SH4A SH7757 CPU.
441
7d740a06
YS
442config CPU_SUBTYPE_SH7763
443 bool "Support SH7763 processor"
444 select CPU_SH4A
445 help
446 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
447
b5f42db0
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448config CPU_SUBTYPE_SH7770
449 bool "Support SH7770 processor"
450 select CPU_SH4A
451
452config CPU_SUBTYPE_SH7780
453 bool "Support SH7780 processor"
454 select CPU_SH4A
455
456config CPU_SUBTYPE_SH7785
457 bool "Support SH7785 processor"
458 select CPU_SH4A
459 select CPU_SHX2
55ba99eb
KM
460 select ARCH_SPARSEMEM_ENABLE
461 select SYS_SUPPORTS_NUMA
462
463config CPU_SUBTYPE_SH7786
464 bool "Support SH7786 processor"
465 select CPU_SH4A
37042fbd 466 select CPU_SHX3
8263a67e 467 select CPU_HAS_PTEAEX
2eb2a436 468 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
b5f42db0
PM
469
470config CPU_SUBTYPE_SHX3
471 bool "Support SH-X3 processor"
472 select CPU_SH4A
473 select CPU_SHX3
5840263e 474 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
742759ea 475 select ARCH_REQUIRE_GPIOLIB
b5f42db0
PM
476
477# SH4AL-DSP Processor Support
478
479config CPU_SUBTYPE_SH7343
480 bool "Support SH7343 processor"
481 select CPU_SH4AL_DSP
dc65a977 482 select ARCH_SHMOBILE
f5ad881b 483 select SYS_SUPPORTS_CMT
b5f42db0
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484
485config CPU_SUBTYPE_SH7722
486 bool "Support SH7722 processor"
487 select CPU_SH4AL_DSP
488 select CPU_SHX2
dc65a977 489 select ARCH_SHMOBILE
b5f42db0
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490 select ARCH_SPARSEMEM_ENABLE
491 select SYS_SUPPORTS_NUMA
f5ad881b 492 select SYS_SUPPORTS_CMT
9109a30e
MD
493
494config CPU_SUBTYPE_SH7366
495 bool "Support SH7366 processor"
496 select CPU_SH4AL_DSP
497 select CPU_SHX2
dc65a977 498 select ARCH_SHMOBILE
9109a30e
MD
499 select ARCH_SPARSEMEM_ENABLE
500 select SYS_SUPPORTS_NUMA
f5ad881b 501 select SYS_SUPPORTS_CMT
b5f42db0 502
3cc000b5
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503endchoice
504
505endif
506
507if SUPERH64
508
509choice
510 prompt "Processor sub-type selection"
511
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512# SH-5 Processor Support
513
514config CPU_SUBTYPE_SH5_101
515 bool "Support SH5-101 processor"
516 select CPU_SH5
517
518config CPU_SUBTYPE_SH5_103
519 bool "Support SH5-103 processor"
8ef97dd7 520 select CPU_SH5
ea0e1a9a 521
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522endchoice
523
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524endif
525
f3d22298 526source "arch/sh/mm/Kconfig"
939a24a6 527
4690bdc7 528source "arch/sh/Kconfig.cpu"
f3d22298 529
939a24a6 530source "arch/sh/boards/Kconfig"
32351a28 531
32351a28
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532menu "Timer and clock configuration"
533
9570ef20
MD
534config SH_TIMER_TMU
535 bool "TMU timer driver"
f19900b2 536 depends on SYS_SUPPORTS_TMU
9570ef20 537 default y
9570ef20
MD
538 help
539 This enables the build of the TMU timer driver.
540
f5ad881b 541config SH_TIMER_CMT
f425752f
MD
542 bool "CMT timer driver"
543 depends on SYS_SUPPORTS_CMT
544 default y
f425752f
MD
545 help
546 This enables build of the CMT timer driver.
f5ad881b 547
d5ed4c2e
MD
548config SH_TIMER_MTU2
549 bool "MTU2 timer driver"
3280c886 550 depends on SYS_SUPPORTS_MTU2
d5ed4c2e 551 default y
d5ed4c2e
MD
552 help
553 This enables build of the MTU2 timer driver.
554
cad82448
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555config SH_PCLK_FREQ
556 int "Peripheral clock frequency (in Hz)"
8152a74b 557 depends on SH_CLK_CPG_LEGACY
9d4436a6 558 default "31250000" if CPU_SUBTYPE_SH7619
8152a74b
PM
559 default "33333333" if CPU_SUBTYPE_SH7770 || \
560 CPU_SUBTYPE_SH7760 || \
561 CPU_SUBTYPE_SH7705 || \
562 CPU_SUBTYPE_SH7203 || \
563 CPU_SUBTYPE_SH7206 || \
564 CPU_SUBTYPE_SH7263 || \
43a1839c 565 CPU_SUBTYPE_MXG
05627486 566 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
cad82448 567 default "66000000" if CPU_SUBTYPE_SH4_202
05627486 568 default "50000000"
1da177e4 569 help
cad82448
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570 This option is used to specify the peripheral clock frequency.
571 This is necessary for determining the reference clock value on
572 platforms lacking an RTC.
1da177e4 573
36aa1e32
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574config SH_CLK_CPG
575 def_bool y
576
253b0887 577config SH_CLK_CPG_LEGACY
36aa1e32 578 depends on SH_CLK_CPG
43a1839c 579 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
5924ad0d 580 !CPU_SHX3 && !CPU_SUBTYPE_SH7757
253b0887 581
9d4436a6
YS
582config SH_CLK_MD
583 int "CPU Mode Pin Setting"
6d01f510 584 depends on CPU_SH2
357d5946
PM
585 default 6 if CPU_SUBTYPE_SH7206
586 default 5 if CPU_SUBTYPE_SH7619
587 default 0
9d4436a6 588 help
11cbb70e 589 MD2 - MD0 pin setting.
9d4436a6 590
57be2b48
PM
591source "kernel/time/Kconfig"
592
32351a28
PM
593endmenu
594
cad82448
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595menu "CPU Frequency scaling"
596
597source "drivers/cpufreq/Kconfig"
1da177e4 598
cad82448
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599config SH_CPU_FREQ
600 tristate "SuperH CPU Frequency driver"
cb5ec75b 601 depends on CPU_FREQ
cad82448 602 select CPU_FREQ_TABLE
1da177e4 603 help
8a655053
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604 This adds the cpufreq driver for SuperH. Any CPU that supports
605 clock rate rounding through the clock framework can use this
606 driver. While it will make the kernel slightly larger, this is
607 harmless for CPUs that don't support rate rounding. The driver
608 will also generate a notice in the boot log before disabling
609 itself if the CPU in question is not capable of rate rounding.
1da177e4 610
cad82448 611 For details, take a look at <file:Documentation/cpu-freq>.
1da177e4
LT
612
613 If unsure, say N.
614
cad82448
PM
615endmenu
616
9f5e8eee
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617source "arch/sh/drivers/Kconfig"
618
cad82448 619endmenu
1da177e4 620
cad82448
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621menu "Kernel features"
622
91b91d01
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623source kernel/Kconfig.hz
624
cad82448
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625config KEXEC
626 bool "kexec system call (EXPERIMENTAL)"
f36b59d1 627 depends on SUPERH32 && EXPERIMENTAL && MMU
1da177e4 628 help
cad82448
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629 kexec is a system call that implements the ability to shutdown your
630 current kernel, and to start another kernel. It is like a reboot
1f1332f7 631 but it is independent of the system firmware. And like a reboot
cad82448
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632 you can start any kernel with it, not just Linux.
633
1f1332f7 634 The name comes from the similarity to the exec system call.
cad82448
PM
635
636 It is an ongoing process to be certain the hardware in a machine
637 is properly shutdown, so do not be surprised if this code does not
638 initially work for you. It may help to enable device hotplugging
639 support. As of this writing the exact hardware interface is
640 strongly in flux, so no good recommendation can be made.
641
4d5ade5b
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642config CRASH_DUMP
643 bool "kernel crash dumps (EXPERIMENTAL)"
d523e1ae 644 depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
4d5ade5b
PM
645 help
646 Generate crash dump after being started by kexec.
647 This should be normally only set in special crash dump kernels
648 which are loaded in the main kernel with kexec-tools into
649 a specially reserved region and then later executed after
650 a crash by kdump/kexec. The crash dump kernel must be compiled
651 to a memory address not used by the main kernel using
652 MEMORY_START.
653
654 For more details see Documentation/kdump/kdump.txt
655
b7cf6ddc
MD
656config KEXEC_JUMP
657 bool "kexec jump (EXPERIMENTAL)"
658 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
659 help
660 Jump between original kernel and kexeced kernel and invoke
661 code via KEXEC
662
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663config SECCOMP
664 bool "Enable seccomp to safely compute untrusted bytecode"
665 depends on PROC_FS
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666 help
667 This kernel feature is useful for number crunching applications
668 that may need to compute untrusted bytecode during their
669 execution. By using pipes or other transports made available to
670 the process as file descriptors supporting the read/write
671 syscalls, it's possible to isolate those applications in
672 their own address space using seccomp. Once seccomp is
673 enabled via prctl, it cannot be disabled and the task is only
674 allowed to execute a few safe syscalls defined by each seccomp
675 mode.
676
677 If unsure, say N.
678
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679config SMP
680 bool "Symmetric multi-processing support"
357d5946 681 depends on SYS_SUPPORTS_SMP
490f5de5 682 select USE_GENERIC_SMP_HELPERS
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683 ---help---
684 This enables support for systems with more than one CPU. If you have
685 a system with only one CPU, like most personal computers, say N. If
686 you have a system with more than one CPU, say Y.
687
688 If you say N here, the kernel will run on single and multiprocessor
689 machines, but will use only one CPU of a multiprocessor machine. If
690 you say Y here, the kernel will run on many, but not all,
691 singleprocessor machines. On a singleprocessor machine, the kernel
692 will run faster if you say N here.
693
694 People using multiprocessor machines who say Y here should also say
695 Y to "Enhanced Real Time Clock Support", below.
696
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697 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
698 available at <http://www.tldp.org/docs.html#howto>.
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699
700 If you don't know what to do here, say N.
701
702config NR_CPUS
703 int "Maximum number of CPUs (2-32)"
704 range 2 32
705 depends on SMP
2eb2a436 706 default "4" if CPU_SUBTYPE_SHX3
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707 default "2"
708 help
709 This allows you to specify the maximum number of CPUs which this
710 kernel will support. The maximum supported value is 32 and the
711 minimum value which makes sense is 2.
712
713 This is purely to save memory - each supported CPU adds
714 approximately eight kilobytes to the kernel image.
715
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716config HOTPLUG_CPU
717 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
718 depends on SMP && HOTPLUG && EXPERIMENTAL
719 help
720 Say Y here to experiment with turning CPUs off and on. CPUs
721 can be controlled through /sys/devices/system/cpu.
722
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723source "kernel/Kconfig.preempt"
724
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725config GUSA
726 def_bool y
1efe4ce3 727 depends on !SMP && SUPERH32
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728 help
729 This enables support for gUSA (general UserSpace Atomicity).
730 This is the default implementation for both UP and non-ll/sc
731 CPUs, and is used by the libc, amongst others.
732
733 For additional information, design information can be found
734 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
735
736 This should only be disabled for special cases where alternate
737 atomicity implementations exist.
738
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739config GUSA_RB
740 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
741 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
742 help
743 Enabling this option will allow the kernel to implement some
692105b8 744 atomic operations using a software implementation of load-locked/
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745 store-conditional (LLSC). On machines which do not have hardware
746 LLSC, this should be more efficient than the other alternative of
692105b8 747 disabling interrupts around the atomic sequence.
1efe4ce3 748
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749config HW_PERF_EVENTS
750 bool "Enable hardware performance counter support for perf events"
751 depends on PERF_EVENTS && CPU_HAS_PMU
752 default y
753 help
754 Enable hardware performance counter support for perf events. If
755 disabled, perf events will use software events only.
756
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757source "drivers/sh/Kconfig"
758
cad82448 759endmenu
1da177e4 760
cad82448 761menu "Boot options"
1da177e4 762
cad82448 763config ZERO_PAGE_OFFSET
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764 hex
765 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
766 SH_7751_SOLUTION_ENGINE
767 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
7a847f81 768 default "0x00002000" if PAGE_SIZE_8KB
cad82448 769 default "0x00001000"
1da177e4 770 help
cad82448 771 This sets the default offset of zero page.
1da177e4 772
cad82448 773config BOOT_LINK_OFFSET
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774 hex
775 default "0x00210000" if SH_SHMIN
a2e76c80 776 default "0x00400000" if SH_CAYMAN
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777 default "0x00810000" if SH_7780_SOLUTION_ENGINE
778 default "0x009e0000" if SH_TITAN
779 default "0x01800000" if SH_SDK7780
780 default "0x02000000" if SH_EDOSK7760
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781 default "0x00800000"
782 help
783 This option allows you to set the link address offset of the zImage.
784 This can be useful if you are on a board which has a small amount of
785 memory.
1da177e4 786
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787config ENTRY_OFFSET
788 hex
789 default "0x00001000" if PAGE_SIZE_4KB
790 default "0x00002000" if PAGE_SIZE_8KB
791 default "0x00004000" if PAGE_SIZE_16KB
792 default "0x00010000" if PAGE_SIZE_64KB
793 default "0x00000000"
794
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795config ROMIMAGE_MMCIF
796 bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
797 depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
798 help
799 Say Y here to include experimental MMCIF loading code in
800 romImage. With this enabled it is possible to write the romImage
801 kernel image to an MMC card and boot the kernel straight from
802 the reset vector. At reset the processor Mask ROM will load the
803 first part of the romImage which in turn loads the rest the kernel
804 image to RAM using the MMCIF hardware block.
805
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806choice
807 prompt "Kernel command line"
808 optional
809 default CMDLINE_OVERWRITE
810 help
811 Setting this option allows the kernel command line arguments
812 to be set.
813
814config CMDLINE_OVERWRITE
815 bool "Overwrite bootloader kernel arguments"
816 help
817 Given string will overwrite any arguments passed in by
818 a bootloader.
819
820config CMDLINE_EXTEND
821 bool "Extend bootloader kernel arguments"
822 help
823 Given string will be concatenated with arguments passed in
824 by a bootloader.
825
826endchoice
1da177e4 827
cad82448 828config CMDLINE
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829 string "Kernel command line arguments string"
830 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
cad82448 831 default "console=ttySC1,115200"
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832
833endmenu
834
cad82448 835menu "Bus options"
1da177e4 836
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837config SUPERHYWAY
838 tristate "SuperHyway Bus support"
839 depends on CPU_SUBTYPE_SH4_202
1da177e4 840
17be2d2b 841config MAPLE
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842 bool "Maple Bus support"
843 depends on SH_DREAMCAST
844 help
845 The Maple Bus is SEGA's serial communication bus for peripherals
846 on the Dreamcast. Without this bus support you won't be able to
847 get your Dreamcast keyboard etc to work, so most users
848 probably want to say 'Y' here, unless you are only using the
849 Dreamcast with a serial line terminal or a remote network
850 connection.
17be2d2b 851
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852config PCI
853 bool "PCI support"
854 depends on SYS_SUPPORTS_PCI
320e68da 855 select PCI_DOMAINS
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856 help
857 Find out whether you have a PCI motherboard. PCI is the name of a
858 bus system, i.e. the way the CPU talks to the other stuff inside
859 your box. If you have PCI, say Y, otherwise N.
1da177e4 860
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861config PCI_DOMAINS
862 bool
863
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864source "drivers/pci/pcie/Kconfig"
865
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866source "drivers/pci/Kconfig"
867
868source "drivers/pcmcia/Kconfig"
869
870source "drivers/pci/hotplug/Kconfig"
871
872endmenu
873
874menu "Executable file formats"
875
876source "fs/Kconfig.binfmt"
877
878endmenu
879
3aa770e7 880menu "Power management options (EXPERIMENTAL)"
af998a9a 881depends on EXPERIMENTAL
f4cb5700 882
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883source "kernel/power/Kconfig"
884
885source "drivers/cpuidle/Kconfig"
3aa770e7 886
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887endmenu
888
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889source "net/Kconfig"
890
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891source "drivers/Kconfig"
892
893source "fs/Kconfig"
894
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895source "arch/sh/Kconfig.debug"
896
897source "security/Kconfig"
898
899source "crypto/Kconfig"
900
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901menuconfig VIRTUALIZATION
902 bool "Virtualization"
903 default n
904 ---help---
905 Say Y here to get to see options for using your Linux host to run other
906 operating systems inside virtual machines (guests).
907 This option alone does not add any kernel code.
908
909 If you say N, all options in this submenu will be skipped and disabled.
910
911if VIRTUALIZATION
912
913source drivers/virtio/Kconfig
914
915endif # VIRTUALIZATION
916
1da177e4 917source "lib/Kconfig"