sh: Provide stubbed I/O routines for NO_IOPORT case.
[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
adaf7fd2 8 select ARCH_DISCARD_MEMBLOCK
42d4b839 9 select HAVE_OPROFILE
9de90ac2 10 select HAVE_GENERIC_DMA_COHERENT
d7b01f78 11 select HAVE_ARCH_TRACEHOOK
f802d969 12 select HAVE_DMA_API_DEBUG
73c926be 13 select HAVE_DMA_ATTRS
e360adbe 14 select HAVE_IRQ_WORK
cdd6c482 15 select HAVE_PERF_EVENTS
df013ffb 16 select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
72f0c137 17 select PERF_USE_VMALLOC
df8ce259 18 select HAVE_KERNEL_GZIP
07e88e1b
PM
19 select HAVE_KERNEL_BZIP2
20 select HAVE_KERNEL_LZMA
50cfa79d 21 select HAVE_KERNEL_XZ
c7b16efb 22 select HAVE_KERNEL_LZO
a74f7e04 23 select HAVE_SYSCALL_TRACEPOINTS
eaaaeef3 24 select HAVE_REGS_AND_STACK_ACCESS_API
57b81330 25 select HAVE_GENERIC_HARDIRQS
2ed86b16 26 select MAY_HAVE_SPARSE_IRQ
ed170924 27 select IRQ_FORCED_THREADING
6eac1af0 28 select RTC_LIB
f01789c6 29 select GENERIC_ATOMIC64
3d44ae40 30 select GENERIC_IRQ_SHOW
1da177e4
LT
31 help
32 The SuperH is a RISC processor targeted for use in embedded systems
33 and consumer electronics; it was also used in the Sega Dreamcast
34 gaming console. The SuperH port has a home page at
35 <http://www.linux-sh.org/>.
36
39d28a2d 37config SUPERH32
3cc000b5 38 def_bool ARCH = "sh"
d39f5450
CS
39 select HAVE_KPROBES
40 select HAVE_KRETPROBES
6d63e73d 41 select HAVE_IOREMAP_PROT if MMU && !X2TLB
694f94f2 42 select HAVE_FUNCTION_TRACER
fad57feb
MF
43 select HAVE_FTRACE_MCOUNT_RECORD
44 select HAVE_DYNAMIC_FTRACE
c1340c05 45 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
e4b053d9 46 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
327933f5 47 select HAVE_FUNCTION_GRAPH_TRACER
ab6e570b 48 select HAVE_ARCH_KGDB
6fbfe8d7 49 select HAVE_HW_BREAKPOINT
0102752e 50 select HAVE_MIXED_BREAKPOINTS_REGS
e583d6b3 51 select PERF_EVENTS
8dafc346 52 select ARCH_HIBERNATION_POSSIBLE if MMU
57b81330 53 select SPARSE_IRQ
ea0e1a9a
PM
54
55config SUPERH64
3cc000b5 56 def_bool ARCH = "sh64"
39d28a2d 57
f42b7e3d
PM
58config ARCH_DEFCONFIG
59 string
60 default "arch/sh/configs/shx3_defconfig" if SUPERH32
61 default "arch/sh/configs/cayman_defconfig" if SUPERH64
62
1da177e4 63config RWSEM_GENERIC_SPINLOCK
d7ef4fb3 64 def_bool y
1da177e4
LT
65
66config RWSEM_XCHGADD_ALGORITHM
67 bool
68
fa691511
PM
69config GENERIC_BUG
70 def_bool y
a82d53ec 71 depends on BUG && SUPERH32
fa691511 72
3767f3f1
PM
73config GENERIC_CSUM
74 def_bool y
75 depends on SUPERH64
76
e2268c71 77config GENERIC_HWEIGHT
d7ef4fb3 78 def_bool y
e2268c71 79
2eb2a436
PM
80config IRQ_PER_CPU
81 def_bool y
82
2967dab1
MD
83config GENERIC_GPIO
84 def_bool n
85
1da177e4 86config GENERIC_CALIBRATE_DELAY
cf204fa7 87 bool
1da177e4 88
57be2b48 89config GENERIC_CLOCKEVENTS
938edae1 90 def_bool y
57be2b48 91
8c24594d
PM
92config GENERIC_CLOCKEVENTS_BROADCAST
93 bool
94
6d134b9e
PM
95config GENERIC_CMOS_UPDATE
96 def_bool y
97 depends on SH_SH03 || SH_DREAMCAST
98
bdcab87b
PM
99config GENERIC_LOCKBREAK
100 def_bool y
101 depends on SMP && PREEMPT
102
af998a9a
MD
103config ARCH_SUSPEND_POSSIBLE
104 def_bool n
105
106config ARCH_HIBERNATION_POSSIBLE
107 def_bool n
357d5946 108
0a9b0db1
PM
109config SYS_SUPPORTS_APM_EMULATION
110 bool
af998a9a 111 select ARCH_SUSPEND_POSSIBLE
357d5946 112
ffb4a73d
PM
113config SYS_SUPPORTS_HUGETLBFS
114 bool
115
357d5946
PM
116config SYS_SUPPORTS_SMP
117 bool
118
119config SYS_SUPPORTS_NUMA
120 bool
121
122config SYS_SUPPORTS_PCI
123 bool
0a9b0db1 124
f5ad881b
PM
125config SYS_SUPPORTS_CMT
126 bool
127
d5ed4c2e
MD
128config SYS_SUPPORTS_MTU2
129 bool
130
9570ef20
MD
131config SYS_SUPPORTS_TMU
132 bool
133
afbfb52e 134config STACKTRACE_SUPPORT
d7ef4fb3 135 def_bool y
afbfb52e
PM
136
137config LOCKDEP_SUPPORT
d7ef4fb3 138 def_bool y
afbfb52e 139
5a89f1ad
PM
140config HAVE_LATENCYTOP_SUPPORT
141 def_bool y
5a89f1ad 142
f0d1b0b3 143config ARCH_HAS_ILOG2_U32
d7ef4fb3 144 def_bool n
f0d1b0b3
DH
145
146config ARCH_HAS_ILOG2_U64
d7ef4fb3 147 def_bool n
f0d1b0b3 148
e257ad06
PM
149config ARCH_NO_VIRT_TO_BUS
150 def_bool y
151
e869a90e
PM
152config ARCH_HAS_DEFAULT_IDLE
153 def_bool y
154
2e046b94
PM
155config ARCH_HAS_CPU_IDLE_WAIT
156 def_bool y
157
86e4dd5a 158config NO_IOPORT
37b7a978 159 def_bool !PCI
4e2b1084 160 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN
86e4dd5a 161
e7cc9a73
MD
162config IO_TRAPPED
163 bool
164
b7e68d68
PM
165config SWAP_IO_SPACE
166 bool
167
01be5d63
PM
168config DMA_COHERENT
169 bool
170
171config DMA_NONCOHERENT
172 def_bool !DMA_COHERENT
173
5cabbb62
FT
174config NEED_DMA_MAP_STATE
175 def_bool DMA_NONCOHERENT
176
18e98307
FT
177config NEED_SG_DMA_LENGTH
178 def_bool y
179
1da177e4
LT
180source "init/Kconfig"
181
dc52ddc0
MH
182source "kernel/Kconfig.freezer"
183
1da177e4
LT
184menu "System type"
185
b5f42db0
PM
186#
187# Processor families
188#
189config CPU_SH2
190 bool
191
192config CPU_SH2A
193 bool
194 select CPU_SH2
e2fcf74f 195 select UNCACHED_MAPPING
b5f42db0
PM
196
197config CPU_SH3
198 bool
199 select CPU_HAS_INTEVT
200 select CPU_HAS_SR_RB
4fa48e17 201 select SYS_SUPPORTS_TMU
b5f42db0
PM
202
203config CPU_SH4
204 bool
205 select CPU_HAS_INTEVT
206 select CPU_HAS_SR_RB
b5f42db0 207 select CPU_HAS_FPU if !CPU_SH4AL_DSP
4fa48e17 208 select SYS_SUPPORTS_TMU
ffb4a73d 209 select SYS_SUPPORTS_HUGETLBFS if MMU
b5f42db0
PM
210
211config CPU_SH4A
212 bool
213 select CPU_SH4
214
215config CPU_SH4AL_DSP
216 bool
217 select CPU_SH4A
218 select CPU_HAS_DSP
219
ea0e1a9a
PM
220config CPU_SH5
221 bool
222 select CPU_HAS_FPU
add47067 223 select SYS_SUPPORTS_TMU
ffb4a73d 224 select SYS_SUPPORTS_HUGETLBFS if MMU
ea0e1a9a 225
b5f42db0
PM
226config CPU_SHX2
227 bool
228
229config CPU_SHX3
230 bool
01be5d63 231 select DMA_COHERENT
4b478ee2
PM
232 select SYS_SUPPORTS_SMP
233 select SYS_SUPPORTS_NUMA
b5f42db0 234
dc65a977
PM
235config ARCH_SHMOBILE
236 bool
77594912 237 select ARCH_SUSPEND_POSSIBLE
ac2c596b
MD
238 select PM
239 select PM_RUNTIME
dc65a977 240
86c8c047
MF
241config CPU_HAS_PMU
242 depends on CPU_SH4 || CPU_SH4A
243 default y
244 bool
245
3cc000b5
PM
246if SUPERH32
247
b5f42db0
PM
248choice
249 prompt "Processor sub-type selection"
250
251#
252# Processor subtypes
253#
254
255# SH-2 Processor Support
256
257config CPU_SUBTYPE_SH7619
258 bool "Support SH7619 processor"
259 select CPU_SH2
f5ad881b 260 select SYS_SUPPORTS_CMT
b5f42db0
PM
261
262# SH-2A Processor Support
263
2825999e
PG
264config CPU_SUBTYPE_SH7201
265 bool "Support SH7201 processor"
266 select CPU_SH2A
267 select CPU_HAS_FPU
da107c6e 268 select SYS_SUPPORTS_MTU2
2825999e 269
6d01f510
PM
270config CPU_SUBTYPE_SH7203
271 bool "Support SH7203 processor"
272 select CPU_SH2A
74d99a5e 273 select CPU_HAS_FPU
f5ad881b 274 select SYS_SUPPORTS_CMT
da107c6e 275 select SYS_SUPPORTS_MTU2
f020c92d 276 select ARCH_WANT_OPTIONAL_GPIOLIB
6d01f510 277
b5f42db0
PM
278config CPU_SUBTYPE_SH7206
279 bool "Support SH7206 processor"
280 select CPU_SH2A
f5ad881b 281 select SYS_SUPPORTS_CMT
da107c6e 282 select SYS_SUPPORTS_MTU2
b5f42db0 283
a8f67f4b
PM
284config CPU_SUBTYPE_SH7263
285 bool "Support SH7263 processor"
286 select CPU_SH2A
74d99a5e 287 select CPU_HAS_FPU
f5ad881b 288 select SYS_SUPPORTS_CMT
da107c6e 289 select SYS_SUPPORTS_MTU2
a8f67f4b 290
51ce3068
PE
291config CPU_SUBTYPE_SH7264
292 bool "Support SH7264 processor"
293 select CPU_SH2A
294 select CPU_HAS_FPU
295 select SYS_SUPPORTS_CMT
296 select SYS_SUPPORTS_MTU2
297
2ad69908
PM
298config CPU_SUBTYPE_MXG
299 bool "Support MX-G processor"
300 select CPU_SH2A
da107c6e 301 select SYS_SUPPORTS_MTU2
2ad69908
PM
302 help
303 Select MX-G if running on an R8A03022BG part.
304
b5f42db0
PM
305# SH-3 Processor Support
306
307config CPU_SUBTYPE_SH7705
308 bool "Support SH7705 processor"
309 select CPU_SH3
310
311config CPU_SUBTYPE_SH7706
312 bool "Support SH7706 processor"
313 select CPU_SH3
314 help
315 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
316
317config CPU_SUBTYPE_SH7707
318 bool "Support SH7707 processor"
319 select CPU_SH3
320 help
321 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
322
323config CPU_SUBTYPE_SH7708
324 bool "Support SH7708 processor"
325 select CPU_SH3
326 help
327 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
328 if you have a 100 Mhz SH-3 HD6417708R CPU.
329
330config CPU_SUBTYPE_SH7709
331 bool "Support SH7709 processor"
332 select CPU_SH3
333 help
334 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
335
336config CPU_SUBTYPE_SH7710
337 bool "Support SH7710 processor"
338 select CPU_SH3
339 select CPU_HAS_DSP
340 help
341 Select SH7710 if you have a SH3-DSP SH7710 CPU.
342
343config CPU_SUBTYPE_SH7712
344 bool "Support SH7712 processor"
345 select CPU_SH3
346 select CPU_HAS_DSP
347 help
348 Select SH7712 if you have a SH3-DSP SH7712 CPU.
349
350config CPU_SUBTYPE_SH7720
351 bool "Support SH7720 processor"
352 select CPU_SH3
353 select CPU_HAS_DSP
2b23a882 354 select SYS_SUPPORTS_CMT
f020c92d 355 select ARCH_WANT_OPTIONAL_GPIOLIB
e3e9887e 356 select USB_ARCH_HAS_OHCI
7b61ca5d 357 select USB_OHCI_SH if USB_OHCI_HCD
b5f42db0
PM
358 help
359 Select SH7720 if you have a SH3-DSP SH7720 CPU.
360
31a49c4b
YS
361config CPU_SUBTYPE_SH7721
362 bool "Support SH7721 processor"
363 select CPU_SH3
364 select CPU_HAS_DSP
2b23a882 365 select SYS_SUPPORTS_CMT
e3e9887e 366 select USB_ARCH_HAS_OHCI
7b61ca5d 367 select USB_OHCI_SH if USB_OHCI_HCD
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
f020c92d 422 select ARCH_WANT_OPTIONAL_GPIOLIB
178dd0cd
PM
423 help
424 Select SH7723 if you have an SH-MobileR2 CPU.
425
0207a2ef
KM
426config CPU_SUBTYPE_SH7724
427 bool "Support SH7724 processor"
428 select CPU_SH4A
429 select CPU_SHX2
59fe700d 430 select ARCH_SHMOBILE
0207a2ef
KM
431 select ARCH_SPARSEMEM_ENABLE
432 select SYS_SUPPORTS_CMT
f020c92d 433 select ARCH_WANT_OPTIONAL_GPIOLIB
0207a2ef
KM
434 help
435 Select SH7724 if you have an SH-MobileR2R CPU.
436
fea88a0c
NI
437config CPU_SUBTYPE_SH7734
438 bool "Support SH7734 processor"
439 select CPU_SH4A
440 select CPU_SHX2
441 select ARCH_WANT_OPTIONAL_GPIOLIB
442 select USB_ARCH_HAS_OHCI
443 select USB_ARCH_HAS_EHCI
444 help
445 Select SH7734 if you have a SH4A SH7734 CPU.
446
c01f0f1a
YS
447config CPU_SUBTYPE_SH7757
448 bool "Support SH7757 processor"
449 select CPU_SH4A
450 select CPU_SHX2
f020c92d 451 select ARCH_WANT_OPTIONAL_GPIOLIB
0fe48601
YS
452 select USB_ARCH_HAS_OHCI
453 select USB_ARCH_HAS_EHCI
c01f0f1a
YS
454 help
455 Select SH7757 if you have a SH4A SH7757 CPU.
456
7d740a06
YS
457config CPU_SUBTYPE_SH7763
458 bool "Support SH7763 processor"
459 select CPU_SH4A
e3e9887e 460 select USB_ARCH_HAS_OHCI
7b61ca5d 461 select USB_OHCI_SH if USB_OHCI_HCD
7d740a06
YS
462 help
463 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
464
b5f42db0
PM
465config CPU_SUBTYPE_SH7770
466 bool "Support SH7770 processor"
467 select CPU_SH4A
468
469config CPU_SUBTYPE_SH7780
470 bool "Support SH7780 processor"
471 select CPU_SH4A
472
473config CPU_SUBTYPE_SH7785
474 bool "Support SH7785 processor"
475 select CPU_SH4A
476 select CPU_SHX2
55ba99eb
KM
477 select ARCH_SPARSEMEM_ENABLE
478 select SYS_SUPPORTS_NUMA
f020c92d 479 select ARCH_WANT_OPTIONAL_GPIOLIB
55ba99eb
KM
480
481config CPU_SUBTYPE_SH7786
482 bool "Support SH7786 processor"
483 select CPU_SH4A
37042fbd 484 select CPU_SHX3
8263a67e 485 select CPU_HAS_PTEAEX
2eb2a436 486 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
f020c92d 487 select ARCH_WANT_OPTIONAL_GPIOLIB
e3e9887e 488 select USB_ARCH_HAS_OHCI
7b61ca5d 489 select USB_OHCI_SH if USB_OHCI_HCD
e3e9887e 490 select USB_ARCH_HAS_EHCI
7b61ca5d 491 select USB_EHCI_SH if USB_EHCI_HCD
b5f42db0
PM
492
493config CPU_SUBTYPE_SHX3
494 bool "Support SH-X3 processor"
495 select CPU_SH4A
496 select CPU_SHX3
5840263e 497 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
742759ea 498 select ARCH_REQUIRE_GPIOLIB
b5f42db0
PM
499
500# SH4AL-DSP Processor Support
501
502config CPU_SUBTYPE_SH7343
503 bool "Support SH7343 processor"
504 select CPU_SH4AL_DSP
dc65a977 505 select ARCH_SHMOBILE
f5ad881b 506 select SYS_SUPPORTS_CMT
b5f42db0
PM
507
508config CPU_SUBTYPE_SH7722
509 bool "Support SH7722 processor"
510 select CPU_SH4AL_DSP
511 select CPU_SHX2
dc65a977 512 select ARCH_SHMOBILE
b5f42db0
PM
513 select ARCH_SPARSEMEM_ENABLE
514 select SYS_SUPPORTS_NUMA
f5ad881b 515 select SYS_SUPPORTS_CMT
f020c92d 516 select ARCH_WANT_OPTIONAL_GPIOLIB
9109a30e
MD
517
518config CPU_SUBTYPE_SH7366
519 bool "Support SH7366 processor"
520 select CPU_SH4AL_DSP
521 select CPU_SHX2
dc65a977 522 select ARCH_SHMOBILE
9109a30e
MD
523 select ARCH_SPARSEMEM_ENABLE
524 select SYS_SUPPORTS_NUMA
f5ad881b 525 select SYS_SUPPORTS_CMT
b5f42db0 526
3cc000b5
PM
527endchoice
528
529endif
530
531if SUPERH64
532
533choice
534 prompt "Processor sub-type selection"
535
ea0e1a9a
PM
536# SH-5 Processor Support
537
538config CPU_SUBTYPE_SH5_101
539 bool "Support SH5-101 processor"
540 select CPU_SH5
541
542config CPU_SUBTYPE_SH5_103
543 bool "Support SH5-103 processor"
8ef97dd7 544 select CPU_SH5
ea0e1a9a 545
b5f42db0
PM
546endchoice
547
3cc000b5
PM
548endif
549
f3d22298 550source "arch/sh/mm/Kconfig"
939a24a6 551
4690bdc7 552source "arch/sh/Kconfig.cpu"
f3d22298 553
939a24a6 554source "arch/sh/boards/Kconfig"
32351a28 555
32351a28
PM
556menu "Timer and clock configuration"
557
9570ef20
MD
558config SH_TIMER_TMU
559 bool "TMU timer driver"
f19900b2 560 depends on SYS_SUPPORTS_TMU
9570ef20 561 default y
9570ef20
MD
562 help
563 This enables the build of the TMU timer driver.
564
f5ad881b 565config SH_TIMER_CMT
f425752f
MD
566 bool "CMT timer driver"
567 depends on SYS_SUPPORTS_CMT
568 default y
f425752f
MD
569 help
570 This enables build of the CMT timer driver.
f5ad881b 571
d5ed4c2e
MD
572config SH_TIMER_MTU2
573 bool "MTU2 timer driver"
3280c886 574 depends on SYS_SUPPORTS_MTU2
d5ed4c2e 575 default y
d5ed4c2e
MD
576 help
577 This enables build of the MTU2 timer driver.
578
cad82448
PM
579config SH_PCLK_FREQ
580 int "Peripheral clock frequency (in Hz)"
8152a74b 581 depends on SH_CLK_CPG_LEGACY
9d4436a6 582 default "31250000" if CPU_SUBTYPE_SH7619
8152a74b
PM
583 default "33333333" if CPU_SUBTYPE_SH7770 || \
584 CPU_SUBTYPE_SH7760 || \
585 CPU_SUBTYPE_SH7705 || \
586 CPU_SUBTYPE_SH7203 || \
587 CPU_SUBTYPE_SH7206 || \
588 CPU_SUBTYPE_SH7263 || \
43a1839c 589 CPU_SUBTYPE_MXG
05627486 590 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
cad82448 591 default "66000000" if CPU_SUBTYPE_SH4_202
05627486 592 default "50000000"
1da177e4 593 help
cad82448
PM
594 This option is used to specify the peripheral clock frequency.
595 This is necessary for determining the reference clock value on
596 platforms lacking an RTC.
1da177e4 597
36aa1e32
PM
598config SH_CLK_CPG
599 def_bool y
600
253b0887 601config SH_CLK_CPG_LEGACY
36aa1e32 602 depends on SH_CLK_CPG
43a1839c 603 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
51ce3068 604 !CPU_SHX3 && !CPU_SUBTYPE_SH7757 && \
15f99cbd 605 !CPU_SUBTYPE_SH7734 && !CPU_SUBTYPE_SH7264
253b0887 606
57be2b48
PM
607source "kernel/time/Kconfig"
608
32351a28
PM
609endmenu
610
cad82448
PM
611menu "CPU Frequency scaling"
612
613source "drivers/cpufreq/Kconfig"
1da177e4 614
cad82448
PM
615config SH_CPU_FREQ
616 tristate "SuperH CPU Frequency driver"
cb5ec75b 617 depends on CPU_FREQ
cad82448 618 select CPU_FREQ_TABLE
1da177e4 619 help
8a655053
PM
620 This adds the cpufreq driver for SuperH. Any CPU that supports
621 clock rate rounding through the clock framework can use this
622 driver. While it will make the kernel slightly larger, this is
623 harmless for CPUs that don't support rate rounding. The driver
624 will also generate a notice in the boot log before disabling
625 itself if the CPU in question is not capable of rate rounding.
1da177e4 626
cad82448 627 For details, take a look at <file:Documentation/cpu-freq>.
1da177e4
LT
628
629 If unsure, say N.
630
cad82448
PM
631endmenu
632
9f5e8eee
PM
633source "arch/sh/drivers/Kconfig"
634
cad82448 635endmenu
1da177e4 636
cad82448
PM
637menu "Kernel features"
638
91b91d01
PM
639source kernel/Kconfig.hz
640
cad82448
PM
641config KEXEC
642 bool "kexec system call (EXPERIMENTAL)"
f36b59d1 643 depends on SUPERH32 && EXPERIMENTAL && MMU
1da177e4 644 help
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645 kexec is a system call that implements the ability to shutdown your
646 current kernel, and to start another kernel. It is like a reboot
1f1332f7 647 but it is independent of the system firmware. And like a reboot
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648 you can start any kernel with it, not just Linux.
649
1f1332f7 650 The name comes from the similarity to the exec system call.
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651
652 It is an ongoing process to be certain the hardware in a machine
653 is properly shutdown, so do not be surprised if this code does not
654 initially work for you. It may help to enable device hotplugging
655 support. As of this writing the exact hardware interface is
656 strongly in flux, so no good recommendation can be made.
657
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658config CRASH_DUMP
659 bool "kernel crash dumps (EXPERIMENTAL)"
d523e1ae 660 depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
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661 help
662 Generate crash dump after being started by kexec.
663 This should be normally only set in special crash dump kernels
664 which are loaded in the main kernel with kexec-tools into
665 a specially reserved region and then later executed after
666 a crash by kdump/kexec. The crash dump kernel must be compiled
667 to a memory address not used by the main kernel using
e66ac3f2 668 PHYSICAL_START.
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669
670 For more details see Documentation/kdump/kdump.txt
671
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672config KEXEC_JUMP
673 bool "kexec jump (EXPERIMENTAL)"
674 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
675 help
676 Jump between original kernel and kexeced kernel and invoke
677 code via KEXEC
678
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679config PHYSICAL_START
680 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
681 default MEMORY_START
682 ---help---
683 This gives the physical address where the kernel is loaded
684 and is ordinarily the same as MEMORY_START.
685
686 Different values are primarily used in the case of kexec on panic
687 where the fail safe kernel needs to run at a different address
688 than the panic-ed kernel.
689
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690config SECCOMP
691 bool "Enable seccomp to safely compute untrusted bytecode"
692 depends on PROC_FS
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693 help
694 This kernel feature is useful for number crunching applications
695 that may need to compute untrusted bytecode during their
696 execution. By using pipes or other transports made available to
697 the process as file descriptors supporting the read/write
698 syscalls, it's possible to isolate those applications in
699 their own address space using seccomp. Once seccomp is
700 enabled via prctl, it cannot be disabled and the task is only
701 allowed to execute a few safe syscalls defined by each seccomp
702 mode.
703
704 If unsure, say N.
705
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706config CC_STACKPROTECTOR
707 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
708 depends on SUPERH32 && EXPERIMENTAL
709 help
710 This option turns on the -fstack-protector GCC feature. This
711 feature puts, at the beginning of functions, a canary value on
712 the stack just before the return address, and validates
713 the value just before actually returning. Stack based buffer
714 overflows (that need to overwrite this return address) now also
715 overwrite the canary, which gets detected and the attack is then
716 neutralized via a kernel panic.
717
718 This feature requires gcc version 4.2 or above.
719
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720config SMP
721 bool "Symmetric multi-processing support"
357d5946 722 depends on SYS_SUPPORTS_SMP
490f5de5 723 select USE_GENERIC_SMP_HELPERS
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724 ---help---
725 This enables support for systems with more than one CPU. If you have
726 a system with only one CPU, like most personal computers, say N. If
727 you have a system with more than one CPU, say Y.
728
729 If you say N here, the kernel will run on single and multiprocessor
730 machines, but will use only one CPU of a multiprocessor machine. If
731 you say Y here, the kernel will run on many, but not all,
732 singleprocessor machines. On a singleprocessor machine, the kernel
733 will run faster if you say N here.
734
735 People using multiprocessor machines who say Y here should also say
736 Y to "Enhanced Real Time Clock Support", below.
737
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738 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
739 available at <http://www.tldp.org/docs.html#howto>.
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740
741 If you don't know what to do here, say N.
742
743config NR_CPUS
744 int "Maximum number of CPUs (2-32)"
745 range 2 32
746 depends on SMP
2eb2a436 747 default "4" if CPU_SUBTYPE_SHX3
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748 default "2"
749 help
750 This allows you to specify the maximum number of CPUs which this
751 kernel will support. The maximum supported value is 32 and the
752 minimum value which makes sense is 2.
753
754 This is purely to save memory - each supported CPU adds
755 approximately eight kilobytes to the kernel image.
756
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757config HOTPLUG_CPU
758 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
759 depends on SMP && HOTPLUG && EXPERIMENTAL
760 help
761 Say Y here to experiment with turning CPUs off and on. CPUs
762 can be controlled through /sys/devices/system/cpu.
763
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764source "kernel/Kconfig.preempt"
765
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766config GUSA
767 def_bool y
1efe4ce3 768 depends on !SMP && SUPERH32
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769 help
770 This enables support for gUSA (general UserSpace Atomicity).
771 This is the default implementation for both UP and non-ll/sc
772 CPUs, and is used by the libc, amongst others.
773
774 For additional information, design information can be found
775 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
776
777 This should only be disabled for special cases where alternate
778 atomicity implementations exist.
779
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780config GUSA_RB
781 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
782 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
783 help
784 Enabling this option will allow the kernel to implement some
692105b8 785 atomic operations using a software implementation of load-locked/
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786 store-conditional (LLSC). On machines which do not have hardware
787 LLSC, this should be more efficient than the other alternative of
692105b8 788 disabling interrupts around the atomic sequence.
1efe4ce3 789
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790config HW_PERF_EVENTS
791 bool "Enable hardware performance counter support for perf events"
792 depends on PERF_EVENTS && CPU_HAS_PMU
793 default y
794 help
795 Enable hardware performance counter support for perf events. If
796 disabled, perf events will use software events only.
797
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798source "drivers/sh/Kconfig"
799
cad82448 800endmenu
1da177e4 801
cad82448 802menu "Boot options"
1da177e4 803
cad82448 804config ZERO_PAGE_OFFSET
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805 hex
806 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
807 SH_7751_SOLUTION_ENGINE
808 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
7a847f81 809 default "0x00002000" if PAGE_SIZE_8KB
cad82448 810 default "0x00001000"
1da177e4 811 help
cad82448 812 This sets the default offset of zero page.
1da177e4 813
cad82448 814config BOOT_LINK_OFFSET
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815 hex
816 default "0x00210000" if SH_SHMIN
a2e76c80 817 default "0x00400000" if SH_CAYMAN
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818 default "0x00810000" if SH_7780_SOLUTION_ENGINE
819 default "0x009e0000" if SH_TITAN
820 default "0x01800000" if SH_SDK7780
821 default "0x02000000" if SH_EDOSK7760
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822 default "0x00800000"
823 help
824 This option allows you to set the link address offset of the zImage.
825 This can be useful if you are on a board which has a small amount of
826 memory.
1da177e4 827
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828config ENTRY_OFFSET
829 hex
830 default "0x00001000" if PAGE_SIZE_4KB
831 default "0x00002000" if PAGE_SIZE_8KB
832 default "0x00004000" if PAGE_SIZE_16KB
833 default "0x00010000" if PAGE_SIZE_64KB
834 default "0x00000000"
835
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836config ROMIMAGE_MMCIF
837 bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
838 depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
839 help
840 Say Y here to include experimental MMCIF loading code in
841 romImage. With this enabled it is possible to write the romImage
842 kernel image to an MMC card and boot the kernel straight from
843 the reset vector. At reset the processor Mask ROM will load the
844 first part of the romImage which in turn loads the rest the kernel
845 image to RAM using the MMCIF hardware block.
846
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847choice
848 prompt "Kernel command line"
849 optional
850 default CMDLINE_OVERWRITE
851 help
852 Setting this option allows the kernel command line arguments
853 to be set.
854
855config CMDLINE_OVERWRITE
856 bool "Overwrite bootloader kernel arguments"
857 help
858 Given string will overwrite any arguments passed in by
859 a bootloader.
860
861config CMDLINE_EXTEND
862 bool "Extend bootloader kernel arguments"
863 help
864 Given string will be concatenated with arguments passed in
865 by a bootloader.
866
867endchoice
1da177e4 868
cad82448 869config CMDLINE
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870 string "Kernel command line arguments string"
871 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
cad82448 872 default "console=ttySC1,115200"
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873
874endmenu
875
cad82448 876menu "Bus options"
1da177e4 877
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878config SUPERHYWAY
879 tristate "SuperHyway Bus support"
880 depends on CPU_SUBTYPE_SH4_202
1da177e4 881
17be2d2b 882config MAPLE
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883 bool "Maple Bus support"
884 depends on SH_DREAMCAST
885 help
886 The Maple Bus is SEGA's serial communication bus for peripherals
887 on the Dreamcast. Without this bus support you won't be able to
888 get your Dreamcast keyboard etc to work, so most users
889 probably want to say 'Y' here, unless you are only using the
890 Dreamcast with a serial line terminal or a remote network
891 connection.
17be2d2b 892
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893config PCI
894 bool "PCI support"
895 depends on SYS_SUPPORTS_PCI
320e68da 896 select PCI_DOMAINS
43db595e 897 select GENERIC_PCI_IOMAP
1e05b62a 898 select NO_GENERIC_PCI_IOPORT_MAP
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899 help
900 Find out whether you have a PCI motherboard. PCI is the name of a
901 bus system, i.e. the way the CPU talks to the other stuff inside
902 your box. If you have PCI, say Y, otherwise N.
1da177e4 903
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904config PCI_DOMAINS
905 bool
906
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907source "drivers/pci/pcie/Kconfig"
908
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909source "drivers/pci/Kconfig"
910
911source "drivers/pcmcia/Kconfig"
912
913source "drivers/pci/hotplug/Kconfig"
914
915endmenu
916
917menu "Executable file formats"
918
919source "fs/Kconfig.binfmt"
920
921endmenu
922
3aa770e7 923menu "Power management options (EXPERIMENTAL)"
af998a9a 924depends on EXPERIMENTAL
f4cb5700 925
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926source "kernel/power/Kconfig"
927
928source "drivers/cpuidle/Kconfig"
3aa770e7 929
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930endmenu
931
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932source "net/Kconfig"
933
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934source "drivers/Kconfig"
935
936source "fs/Kconfig"
937
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938source "arch/sh/Kconfig.debug"
939
940source "security/Kconfig"
941
942source "crypto/Kconfig"
943
944source "lib/Kconfig"
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