Kconfig 20.9 KB
Newer Older
L
Linus Torvalds 已提交
1
config SUPERH
2
	def_bool y
3
	select EXPERT
4
	select CLKDEV_LOOKUP
5
	select HAVE_IDE if HAS_IOPORT
Y
Yinghai Lu 已提交
6
	select HAVE_MEMBLOCK
T
Tejun Heo 已提交
7
	select HAVE_MEMBLOCK_NODE_MAP
P
Paul Mundt 已提交
8
	select ARCH_DISCARD_MEMBLOCK
M
Mathieu Desnoyers 已提交
9
	select HAVE_OPROFILE
10
	select HAVE_GENERIC_DMA_COHERENT
11
	select HAVE_ARCH_TRACEHOOK
12
	select HAVE_DMA_API_DEBUG
13
	select HAVE_DMA_ATTRS
14
	select HAVE_IRQ_WORK
15
	select HAVE_PERF_EVENTS
16
	select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
17
	select PERF_USE_VMALLOC
18
	select HAVE_KERNEL_GZIP
P
Paul Mundt 已提交
19 20
	select HAVE_KERNEL_BZIP2
	select HAVE_KERNEL_LZMA
P
Paul Mundt 已提交
21
	select HAVE_KERNEL_XZ
22
	select HAVE_KERNEL_LZO
23
	select HAVE_SYSCALL_TRACEPOINTS
P
Paul Mundt 已提交
24
	select HAVE_REGS_AND_STACK_ACCESS_API
P
Paul Mundt 已提交
25 26
	select HAVE_GENERIC_HARDIRQS
	select HAVE_SPARSE_IRQ
P
Paul Mundt 已提交
27
	select IRQ_FORCED_THREADING
28
	select RTC_LIB
29
	select GENERIC_ATOMIC64
30
	select GENERIC_IRQ_SHOW
L
Linus Torvalds 已提交
31 32 33 34 35 36
	help
	  The SuperH is a RISC processor targeted for use in embedded systems
	  and consumer electronics; it was also used in the Sega Dreamcast
	  gaming console.  The SuperH port has a home page at
	  <http://www.linux-sh.org/>.

P
Paul Mundt 已提交
37
config SUPERH32
38
	def_bool ARCH = "sh"
C
Chris Smith 已提交
39 40
	select HAVE_KPROBES
	select HAVE_KRETPROBES
41
	select HAVE_IOREMAP_PROT if MMU && !X2TLB
42
	select HAVE_FUNCTION_TRACER
M
Matt Fleming 已提交
43 44
	select HAVE_FTRACE_MCOUNT_RECORD
	select HAVE_DYNAMIC_FTRACE
45
	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
46
	select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
M
Matt Fleming 已提交
47
	select HAVE_FUNCTION_GRAPH_TRACER
P
Paul Mundt 已提交
48
	select HAVE_ARCH_KGDB
49
	select HAVE_HW_BREAKPOINT
50
	select HAVE_MIXED_BREAKPOINTS_REGS
51
	select PERF_EVENTS
52
	select ARCH_HIBERNATION_POSSIBLE if MMU
P
Paul Mundt 已提交
53
	select SPARSE_IRQ
54 55

config SUPERH64
56
	def_bool ARCH = "sh64"
P
Paul Mundt 已提交
57

58 59 60 61 62
config ARCH_DEFCONFIG
	string
	default "arch/sh/configs/shx3_defconfig" if SUPERH32
	default "arch/sh/configs/cayman_defconfig" if SUPERH64

L
Linus Torvalds 已提交
63
config RWSEM_GENERIC_SPINLOCK
64
	def_bool y
L
Linus Torvalds 已提交
65 66 67 68

config RWSEM_XCHGADD_ALGORITHM
	bool

P
Paul Mundt 已提交
69 70
config GENERIC_BUG
	def_bool y
71
	depends on BUG && SUPERH32
P
Paul Mundt 已提交
72

73 74 75 76
config GENERIC_CSUM
	def_bool y
	depends on SUPERH64

77
config GENERIC_HWEIGHT
78
	def_bool y
79

P
Paul Mundt 已提交
80 81 82
config IRQ_PER_CPU
	def_bool y

M
Magnus Damm 已提交
83 84 85
config GENERIC_GPIO
	def_bool n

L
Linus Torvalds 已提交
86
config GENERIC_CALIBRATE_DELAY
87
	bool
L
Linus Torvalds 已提交
88

89
config GENERIC_CLOCKEVENTS
90
	def_bool y
91

92 93 94
config GENERIC_CLOCKEVENTS_BROADCAST
	bool

95 96 97 98
config GENERIC_CMOS_UPDATE
	def_bool y
	depends on SH_SH03 || SH_DREAMCAST

P
Paul Mundt 已提交
99 100 101 102
config GENERIC_LOCKBREAK
	def_bool y
	depends on SMP && PREEMPT

M
Magnus Damm 已提交
103 104 105 106 107
config ARCH_SUSPEND_POSSIBLE
	def_bool n

config ARCH_HIBERNATION_POSSIBLE
	def_bool n
108

109 110
config SYS_SUPPORTS_APM_EMULATION
	bool
M
Magnus Damm 已提交
111
	select ARCH_SUSPEND_POSSIBLE
112

113 114 115
config SYS_SUPPORTS_HUGETLBFS
	bool

116 117 118 119 120 121 122 123
config SYS_SUPPORTS_SMP
	bool

config SYS_SUPPORTS_NUMA
	bool

config SYS_SUPPORTS_PCI
	bool
124

125 126 127
config SYS_SUPPORTS_CMT
	bool

128 129 130
config SYS_SUPPORTS_MTU2
	bool

131 132 133
config SYS_SUPPORTS_TMU
	bool

134
config STACKTRACE_SUPPORT
135
	def_bool y
136 137

config LOCKDEP_SUPPORT
138
	def_bool y
139

P
Paul Mundt 已提交
140 141 142
config HAVE_LATENCYTOP_SUPPORT
	def_bool y

143
config ARCH_HAS_ILOG2_U32
144
	def_bool n
145 146

config ARCH_HAS_ILOG2_U64
147
	def_bool n
148

149 150 151
config ARCH_NO_VIRT_TO_BUS
	def_bool y

152 153 154
config ARCH_HAS_DEFAULT_IDLE
	def_bool y

155 156 157
config ARCH_HAS_CPU_IDLE_WAIT
	def_bool y

158
config NO_IOPORT
P
Paul Mundt 已提交
159
	def_bool !PCI
160
	depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN
161

M
Magnus Damm 已提交
162 163 164
config IO_TRAPPED
	bool

165 166 167 168 169 170
config DMA_COHERENT
	bool

config DMA_NONCOHERENT
	def_bool !DMA_COHERENT

171 172 173
config NEED_DMA_MAP_STATE
	def_bool DMA_NONCOHERENT

174 175 176
config NEED_SG_DMA_LENGTH
	def_bool y

L
Linus Torvalds 已提交
177 178
source "init/Kconfig"

179 180
source "kernel/Kconfig.freezer"

L
Linus Torvalds 已提交
181 182
menu "System type"

183 184 185 186 187 188 189 190 191
#
# Processor families
#
config CPU_SH2
	bool

config CPU_SH2A
	bool
	select CPU_SH2
P
Paul Mundt 已提交
192
	select UNCACHED_MAPPING
193 194 195 196 197

config CPU_SH3
	bool
	select CPU_HAS_INTEVT
	select CPU_HAS_SR_RB
198
	select SYS_SUPPORTS_TMU
199 200 201 202 203 204

config CPU_SH4
	bool
	select CPU_HAS_INTEVT
	select CPU_HAS_SR_RB
	select CPU_HAS_FPU if !CPU_SH4AL_DSP
205
	select SYS_SUPPORTS_TMU
206
	select SYS_SUPPORTS_HUGETLBFS if MMU
207 208 209 210 211 212 213 214 215 216

config CPU_SH4A
	bool
	select CPU_SH4

config CPU_SH4AL_DSP
	bool
	select CPU_SH4A
	select CPU_HAS_DSP

217 218 219
config CPU_SH5
	bool
	select CPU_HAS_FPU
220
	select SYS_SUPPORTS_TMU
221
	select SYS_SUPPORTS_HUGETLBFS if MMU
222

223 224 225 226 227
config CPU_SHX2
	bool

config CPU_SHX3
	bool
228
	select DMA_COHERENT
229 230
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_NUMA
231

232 233
config ARCH_SHMOBILE
	bool
M
Magnus Damm 已提交
234
	select ARCH_SUSPEND_POSSIBLE
235 236
	select PM
	select PM_RUNTIME
237

238 239 240 241 242
config CPU_HAS_PMU
       depends on CPU_SH4 || CPU_SH4A
       default y
       bool

243 244
if SUPERH32

245 246 247 248 249 250 251 252 253 254 255 256
choice
	prompt "Processor sub-type selection"

#
# Processor subtypes
#

# SH-2 Processor Support

config CPU_SUBTYPE_SH7619
	bool "Support SH7619 processor"
	select CPU_SH2
257
	select SYS_SUPPORTS_CMT
258 259 260

# SH-2A Processor Support

261 262 263 264
config CPU_SUBTYPE_SH7201
	bool "Support SH7201 processor"
	select CPU_SH2A
	select CPU_HAS_FPU
M
Magnus Damm 已提交
265
	select SYS_SUPPORTS_MTU2
266
 
P
Paul Mundt 已提交
267 268 269
config CPU_SUBTYPE_SH7203
	bool "Support SH7203 processor"
	select CPU_SH2A
P
Paul Mundt 已提交
270
	select CPU_HAS_FPU
271
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
272
	select SYS_SUPPORTS_MTU2
273
	select ARCH_WANT_OPTIONAL_GPIOLIB
P
Paul Mundt 已提交
274

275 276 277
config CPU_SUBTYPE_SH7206
	bool "Support SH7206 processor"
	select CPU_SH2A
278
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
279
	select SYS_SUPPORTS_MTU2
280

P
Paul Mundt 已提交
281 282 283
config CPU_SUBTYPE_SH7263
	bool "Support SH7263 processor"
	select CPU_SH2A
P
Paul Mundt 已提交
284
	select CPU_HAS_FPU
285
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
286
	select SYS_SUPPORTS_MTU2
P
Paul Mundt 已提交
287

288 289 290
config CPU_SUBTYPE_MXG
	bool "Support MX-G processor"
	select CPU_SH2A
M
Magnus Damm 已提交
291
	select SYS_SUPPORTS_MTU2
292 293 294
	help
	  Select MX-G if running on an R8A03022BG part.

295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343
# SH-3 Processor Support

config CPU_SUBTYPE_SH7705
	bool "Support SH7705 processor"
	select CPU_SH3

config CPU_SUBTYPE_SH7706
	bool "Support SH7706 processor"
	select CPU_SH3
	help
	  Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.

config CPU_SUBTYPE_SH7707
	bool "Support SH7707 processor"
	select CPU_SH3
	help
	  Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.

config CPU_SUBTYPE_SH7708
	bool "Support SH7708 processor"
	select CPU_SH3
	help
	  Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
	  if you have a 100 Mhz SH-3 HD6417708R CPU.

config CPU_SUBTYPE_SH7709
	bool "Support SH7709 processor"
	select CPU_SH3
	help
	  Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.

config CPU_SUBTYPE_SH7710
	bool "Support SH7710 processor"
	select CPU_SH3
	select CPU_HAS_DSP
	help
	  Select SH7710 if you have a SH3-DSP SH7710 CPU.

config CPU_SUBTYPE_SH7712
	bool "Support SH7712 processor"
	select CPU_SH3
	select CPU_HAS_DSP
	help
	  Select SH7712 if you have a SH3-DSP SH7712 CPU.

config CPU_SUBTYPE_SH7720
	bool "Support SH7720 processor"
	select CPU_SH3
	select CPU_HAS_DSP
344
	select SYS_SUPPORTS_CMT
345
	select ARCH_WANT_OPTIONAL_GPIOLIB
346
	select USB_ARCH_HAS_OHCI
347
	select USB_OHCI_SH if USB_OHCI_HCD
348 349 350
	help
	  Select SH7720 if you have a SH3-DSP SH7720 CPU.

351 352 353 354
config CPU_SUBTYPE_SH7721
	bool "Support SH7721 processor"
	select CPU_SH3
	select CPU_HAS_DSP
355
	select SYS_SUPPORTS_CMT
356
	select USB_ARCH_HAS_OHCI
357
	select USB_OHCI_SH if USB_OHCI_HCD
358 359 360
	help
	  Select SH7721 if you have a SH3-DSP SH7721 CPU.

361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404
# SH-4 Processor Support

config CPU_SUBTYPE_SH7750
	bool "Support SH7750 processor"
	select CPU_SH4
	help
	  Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.

config CPU_SUBTYPE_SH7091
	bool "Support SH7091 processor"
	select CPU_SH4
	help
	  Select SH7091 if you have an SH-4 based Sega device (such as
	  the Dreamcast, Naomi, and Naomi 2).

config CPU_SUBTYPE_SH7750R
	bool "Support SH7750R processor"
	select CPU_SH4

config CPU_SUBTYPE_SH7750S
	bool "Support SH7750S processor"
	select CPU_SH4

config CPU_SUBTYPE_SH7751
	bool "Support SH7751 processor"
	select CPU_SH4
	help
	  Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
	  or if you have a HD6417751R CPU.

config CPU_SUBTYPE_SH7751R
	bool "Support SH7751R processor"
	select CPU_SH4

config CPU_SUBTYPE_SH7760
	bool "Support SH7760 processor"
	select CPU_SH4

config CPU_SUBTYPE_SH4_202
	bool "Support SH4-202 processor"
	select CPU_SH4

# SH-4A Processor Support

405 406 407 408
config CPU_SUBTYPE_SH7723
	bool "Support SH7723 processor"
	select CPU_SH4A
	select CPU_SHX2
409
	select ARCH_SHMOBILE
410
	select ARCH_SPARSEMEM_ENABLE
411
	select SYS_SUPPORTS_CMT
412
	select ARCH_WANT_OPTIONAL_GPIOLIB
413 414 415
	help
	  Select SH7723 if you have an SH-MobileR2 CPU.

416 417 418 419
config CPU_SUBTYPE_SH7724
	bool "Support SH7724 processor"
	select CPU_SH4A
	select CPU_SHX2
420
	select ARCH_SHMOBILE
421 422
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_CMT
423
	select ARCH_WANT_OPTIONAL_GPIOLIB
424 425 426
	help
	  Select SH7724 if you have an SH-MobileR2R CPU.

427 428 429 430
config CPU_SUBTYPE_SH7757
	bool "Support SH7757 processor"
	select CPU_SH4A
	select CPU_SHX2
431
	select ARCH_WANT_OPTIONAL_GPIOLIB
432 433
	select USB_ARCH_HAS_OHCI
	select USB_ARCH_HAS_EHCI
434 435 436
	help
	  Select SH7757 if you have a SH4A SH7757 CPU.

437 438 439
config CPU_SUBTYPE_SH7763
	bool "Support SH7763 processor"
	select CPU_SH4A
440
	select USB_ARCH_HAS_OHCI
441
	select USB_OHCI_SH if USB_OHCI_HCD
442 443 444
	help
	  Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.

445 446 447 448 449 450 451 452 453 454 455 456
config CPU_SUBTYPE_SH7770
	bool "Support SH7770 processor"
	select CPU_SH4A

config CPU_SUBTYPE_SH7780
	bool "Support SH7780 processor"
	select CPU_SH4A

config CPU_SUBTYPE_SH7785
	bool "Support SH7785 processor"
	select CPU_SH4A
	select CPU_SHX2
457 458
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
459
	select ARCH_WANT_OPTIONAL_GPIOLIB
460 461 462 463

config CPU_SUBTYPE_SH7786
	bool "Support SH7786 processor"
	select CPU_SH4A
464
	select CPU_SHX3
465
	select CPU_HAS_PTEAEX
P
Paul Mundt 已提交
466
	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
467
	select ARCH_WANT_OPTIONAL_GPIOLIB
468
	select USB_ARCH_HAS_OHCI
469
	select USB_OHCI_SH if USB_OHCI_HCD
470
	select USB_ARCH_HAS_EHCI
471
	select USB_EHCI_SH if USB_EHCI_HCD
472 473 474 475 476

config CPU_SUBTYPE_SHX3
	bool "Support SH-X3 processor"
	select CPU_SH4A
	select CPU_SHX3
477
	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
478
	select ARCH_REQUIRE_GPIOLIB
479 480 481 482 483 484

# SH4AL-DSP Processor Support

config CPU_SUBTYPE_SH7343
	bool "Support SH7343 processor"
	select CPU_SH4AL_DSP
485
	select ARCH_SHMOBILE
486
	select SYS_SUPPORTS_CMT
487 488 489 490 491

config CPU_SUBTYPE_SH7722
	bool "Support SH7722 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
492
	select ARCH_SHMOBILE
493 494
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
495
	select SYS_SUPPORTS_CMT
496
	select ARCH_WANT_OPTIONAL_GPIOLIB
497 498 499 500 501

config CPU_SUBTYPE_SH7366
	bool "Support SH7366 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
502
	select ARCH_SHMOBILE
503 504
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
505
	select SYS_SUPPORTS_CMT
506

507 508 509 510 511 512 513 514 515
endchoice

endif

if SUPERH64

choice
	prompt "Processor sub-type selection"

516 517 518 519 520 521 522 523
# SH-5 Processor Support

config CPU_SUBTYPE_SH5_101
	bool "Support SH5-101 processor"
	select CPU_SH5

config CPU_SUBTYPE_SH5_103
	bool "Support SH5-103 processor"
524
	select CPU_SH5
525

526 527
endchoice

528 529
endif

P
Paul Mundt 已提交
530
source "arch/sh/mm/Kconfig"
531
 
532
source "arch/sh/Kconfig.cpu"
P
Paul Mundt 已提交
533

534
source "arch/sh/boards/Kconfig"
535 536 537

menu "Timer and clock configuration"

538 539
config SH_TIMER_TMU
	bool "TMU timer driver"
M
Magnus Damm 已提交
540
	depends on SYS_SUPPORTS_TMU
541 542 543 544
	default y
	help
	  This enables the build of the TMU timer driver.

545
config SH_TIMER_CMT
M
Magnus Damm 已提交
546 547 548 549 550
	bool "CMT timer driver"
	depends on SYS_SUPPORTS_CMT
	default y
	help
	  This enables build of the CMT timer driver.
551

552 553
config SH_TIMER_MTU2
	bool "MTU2 timer driver"
M
Magnus Damm 已提交
554
	depends on SYS_SUPPORTS_MTU2
555 556 557 558
	default y
	help
	  This enables build of the MTU2 timer driver.

559 560
config SH_PCLK_FREQ
	int "Peripheral clock frequency (in Hz)"
561
	depends on SH_CLK_CPG_LEGACY
562
	default "31250000" if CPU_SUBTYPE_SH7619
563 564 565 566 567 568
	default "33333333" if CPU_SUBTYPE_SH7770 || \
			      CPU_SUBTYPE_SH7760 || \
			      CPU_SUBTYPE_SH7705 || \
			      CPU_SUBTYPE_SH7203 || \
			      CPU_SUBTYPE_SH7206 || \
			      CPU_SUBTYPE_SH7263 || \
P
Paul Mundt 已提交
569
			      CPU_SUBTYPE_MXG
P
Paul Mundt 已提交
570
	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
571
	default "66000000" if CPU_SUBTYPE_SH4_202
P
Paul Mundt 已提交
572
	default "50000000"
L
Linus Torvalds 已提交
573
	help
574 575 576
	  This option is used to specify the peripheral clock frequency.
	  This is necessary for determining the reference clock value on
	  platforms lacking an RTC.
L
Linus Torvalds 已提交
577

578 579 580
config SH_CLK_CPG
	def_bool y

581
config SH_CLK_CPG_LEGACY
582
	depends on SH_CLK_CPG
P
Paul Mundt 已提交
583
	def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
584
		      !CPU_SHX3 && !CPU_SUBTYPE_SH7757
585

586 587
source "kernel/time/Kconfig"

588 589
endmenu

590 591 592
menu "CPU Frequency scaling"

source "drivers/cpufreq/Kconfig"
L
Linus Torvalds 已提交
593

594 595
config SH_CPU_FREQ
	tristate "SuperH CPU Frequency driver"
596
	depends on CPU_FREQ
597
	select CPU_FREQ_TABLE
L
Linus Torvalds 已提交
598
	help
P
Paul Mundt 已提交
599 600 601 602 603 604
	  This adds the cpufreq driver for SuperH. Any CPU that supports
	  clock rate rounding through the clock framework can use this
	  driver. While it will make the kernel slightly larger, this is
	  harmless for CPUs that don't support rate rounding. The driver
	  will also generate a notice in the boot log before disabling
	  itself if the CPU in question is not capable of rate rounding.
L
Linus Torvalds 已提交
605

606
	  For details, take a look at <file:Documentation/cpu-freq>.
L
Linus Torvalds 已提交
607 608 609

	  If unsure, say N.

610 611
endmenu

P
Paul Mundt 已提交
612 613
source "arch/sh/drivers/Kconfig"

614
endmenu
L
Linus Torvalds 已提交
615

616 617
menu "Kernel features"

P
Paul Mundt 已提交
618 619
source kernel/Kconfig.hz

620 621
config KEXEC
	bool "kexec system call (EXPERIMENTAL)"
622
	depends on SUPERH32 && EXPERIMENTAL && MMU
L
Linus Torvalds 已提交
623
	help
624 625
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
626
	  but it is independent of the system firmware.  And like a reboot
627 628
	  you can start any kernel with it, not just Linux.

629
	  The name comes from the similarity to the exec system call.
630 631 632 633 634 635 636

	  It is an ongoing process to be certain the hardware in a machine
	  is properly shutdown, so do not be surprised if this code does not
	  initially work for you.  It may help to enable device hotplugging
	  support.  As of this writing the exact hardware interface is
	  strongly in flux, so no good recommendation can be made.

P
Paul Mundt 已提交
637 638
config CRASH_DUMP
	bool "kernel crash dumps (EXPERIMENTAL)"
639
	depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
P
Paul Mundt 已提交
640 641 642 643 644 645 646
	help
	  Generate crash dump after being started by kexec.
	  This should be normally only set in special crash dump kernels
	  which are loaded in the main kernel with kexec-tools into
	  a specially reserved region and then later executed after
	  a crash by kdump/kexec. The crash dump kernel must be compiled
	  to a memory address not used by the main kernel using
S
Simon Horman 已提交
647
	  PHYSICAL_START.
P
Paul Mundt 已提交
648 649 650

	  For more details see Documentation/kdump/kdump.txt

M
Magnus Damm 已提交
651 652 653 654 655 656 657
config KEXEC_JUMP
	bool "kexec jump (EXPERIMENTAL)"
	depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
	help
	  Jump between original kernel and kexeced kernel and invoke
	  code via KEXEC

S
Simon Horman 已提交
658 659 660 661 662 663 664 665 666 667 668
config PHYSICAL_START
	hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
	default MEMORY_START
	---help---
	  This gives the physical address where the kernel is loaded
	  and is ordinarily the same as MEMORY_START.

	  Different values are primarily used in the case of kexec on panic
	  where the fail safe kernel needs to run at a different address
	  than the panic-ed kernel.

P
Paul Mundt 已提交
669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
	depends on PROC_FS
	help
	  This kernel feature is useful for number crunching applications
	  that may need to compute untrusted bytecode during their
	  execution. By using pipes or other transports made available to
	  the process as file descriptors supporting the read/write
	  syscalls, it's possible to isolate those applications in
	  their own address space using seccomp. Once seccomp is
	  enabled via prctl, it cannot be disabled and the task is only
	  allowed to execute a few safe syscalls defined by each seccomp
	  mode.

	  If unsure, say N.

L
Linus Torvalds 已提交
685 686
config SMP
	bool "Symmetric multi-processing support"
687
	depends on SYS_SUPPORTS_SMP
688
	select USE_GENERIC_SMP_HELPERS
L
Linus Torvalds 已提交
689 690 691 692 693 694 695 696 697 698 699 700 701 702
	---help---
	  This enables support for systems with more than one CPU. If you have
	  a system with only one CPU, like most personal computers, say N. If
	  you have a system with more than one CPU, say Y.

	  If you say N here, the kernel will run on single and multiprocessor
	  machines, but will use only one CPU of a multiprocessor machine. If
	  you say Y here, the kernel will run on many, but not all,
	  singleprocessor machines. On a singleprocessor machine, the kernel
	  will run faster if you say N here.

	  People using multiprocessor machines who say Y here should also say
	  Y to "Enhanced Real Time Clock Support", below.

A
Adrian Bunk 已提交
703 704
	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
	  available at <http://www.tldp.org/docs.html#howto>.
L
Linus Torvalds 已提交
705 706 707 708 709 710 711

	  If you don't know what to do here, say N.

config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
P
Paul Mundt 已提交
712
	default "4" if CPU_SUBTYPE_SHX3
L
Linus Torvalds 已提交
713 714 715 716 717 718 719 720 721
	default "2"
	help
	  This allows you to specify the maximum number of CPUs which this
	  kernel will support.  The maximum supported value is 32 and the
	  minimum value which makes sense is 2.

	  This is purely to save memory - each supported CPU adds
	  approximately eight kilobytes to the kernel image.

P
Paul Mundt 已提交
722 723 724 725 726 727 728
config HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
	depends on SMP && HOTPLUG && EXPERIMENTAL
	help
	  Say Y here to experiment with turning CPUs off and on.  CPUs
	  can be controlled through /sys/devices/system/cpu.

P
Paul Mundt 已提交
729 730
source "kernel/Kconfig.preempt"

P
Paul Mundt 已提交
731 732
config GUSA
	def_bool y
733
	depends on !SMP && SUPERH32
P
Paul Mundt 已提交
734 735 736 737 738 739 740 741 742 743 744
	help
	  This enables support for gUSA (general UserSpace Atomicity).
	  This is the default implementation for both UP and non-ll/sc
	  CPUs, and is used by the libc, amongst others.

	  For additional information, design information can be found 
	  in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.

	  This should only be disabled for special cases where alternate
	  atomicity implementations exist.

745 746 747 748 749
config GUSA_RB
	bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
	depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
	help
	  Enabling this option will allow the kernel to implement some
750
	  atomic operations using a software implementation of load-locked/
751 752
	  store-conditional (LLSC). On machines which do not have hardware
	  LLSC, this should be more efficient than the other alternative of
753
	  disabling interrupts around the atomic sequence.
754

755 756 757 758 759 760 761 762
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
	depends on PERF_EVENTS && CPU_HAS_PMU
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

P
Paul Mundt 已提交
763 764
source "drivers/sh/Kconfig"

765
endmenu
L
Linus Torvalds 已提交
766

767
menu "Boot options"
L
Linus Torvalds 已提交
768

769
config ZERO_PAGE_OFFSET
770 771 772 773
	hex
	default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
				SH_7751_SOLUTION_ENGINE
	default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
774
	default "0x00002000" if PAGE_SIZE_8KB
775
	default "0x00001000"
L
Linus Torvalds 已提交
776
	help
777
	  This sets the default offset of zero page.
L
Linus Torvalds 已提交
778

779
config BOOT_LINK_OFFSET
780 781
	hex
	default "0x00210000" if SH_SHMIN
782
	default "0x00400000" if SH_CAYMAN
783 784 785 786
	default "0x00810000" if SH_7780_SOLUTION_ENGINE
	default "0x009e0000" if SH_TITAN
	default "0x01800000" if SH_SDK7780
	default "0x02000000" if SH_EDOSK7760
787 788 789 790 791
	default "0x00800000"
	help
	  This option allows you to set the link address offset of the zImage.
	  This can be useful if you are on a board which has a small amount of
	  memory.
L
Linus Torvalds 已提交
792

793 794 795 796 797 798 799 800
config ENTRY_OFFSET
	hex
	default "0x00001000" if PAGE_SIZE_4KB
	default "0x00002000" if PAGE_SIZE_8KB
	default "0x00004000" if PAGE_SIZE_16KB
	default "0x00010000" if PAGE_SIZE_64KB
	default "0x00000000"

801 802 803 804 805 806 807 808 809 810 811
config ROMIMAGE_MMCIF
	bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
	depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
	help
	  Say Y here to include experimental MMCIF loading code in
	  romImage. With this enabled it is possible to write the romImage
	  kernel image to an MMC card and boot the kernel straight from
	  the reset vector. At reset the processor Mask ROM will load the
	  first part of the romImage which in turn loads the rest the kernel
	  image to RAM using the MMCIF hardware block.

812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832
choice
	prompt "Kernel command line"
	optional
	default CMDLINE_OVERWRITE
	help
	  Setting this option allows the kernel command line arguments
	  to be set.

config CMDLINE_OVERWRITE
	bool "Overwrite bootloader kernel arguments"
	help
	  Given string will overwrite any arguments passed in by
	  a bootloader.

config CMDLINE_EXTEND
	bool "Extend bootloader kernel arguments"
	help
	  Given string will be concatenated with arguments passed in
	  by a bootloader.

endchoice
L
Linus Torvalds 已提交
833

834
config CMDLINE
835 836
	string "Kernel command line arguments string"
	depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
837
	default "console=ttySC1,115200"
L
Linus Torvalds 已提交
838 839 840

endmenu

841
menu "Bus options"
L
Linus Torvalds 已提交
842

843 844 845
config SUPERHYWAY
	tristate "SuperHyway Bus support"
	depends on CPU_SUBTYPE_SH4_202
L
Linus Torvalds 已提交
846

847
config MAPLE
848 849 850 851 852 853 854 855 856
	bool "Maple Bus support"
	depends on SH_DREAMCAST
	help
	 The Maple Bus is SEGA's serial communication bus for peripherals
	 on the Dreamcast. Without this bus support you won't be able to
	 get your Dreamcast keyboard etc to work, so most users
	 probably want to say 'Y' here, unless you are only using the
	 Dreamcast with a serial line terminal or a remote network
	 connection.
857

858 859 860
config PCI
	bool "PCI support"
	depends on SYS_SUPPORTS_PCI
P
Paul Mundt 已提交
861
	select PCI_DOMAINS
862
	select GENERIC_PCI_IOMAP
863
	select NO_GENERIC_PCI_IOPORT_MAP
864 865 866 867
	help
	  Find out whether you have a PCI motherboard. PCI is the name of a
	  bus system, i.e. the way the CPU talks to the other stuff inside
	  your box. If you have PCI, say Y, otherwise N.
L
Linus Torvalds 已提交
868

P
Paul Mundt 已提交
869 870 871
config PCI_DOMAINS
	bool

872 873
source "drivers/pci/pcie/Kconfig"

L
Linus Torvalds 已提交
874 875 876 877 878 879 880 881 882 883 884 885 886 887
source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

source "drivers/pci/hotplug/Kconfig"

endmenu

menu "Executable file formats"

source "fs/Kconfig.binfmt"

endmenu

A
Andriy Skulysh 已提交
888
menu "Power management options (EXPERIMENTAL)"
M
Magnus Damm 已提交
889
depends on EXPERIMENTAL
J
Johannes Berg 已提交
890

M
Magnus Damm 已提交
891 892 893
source "kernel/power/Kconfig"

source "drivers/cpuidle/Kconfig"
A
Andriy Skulysh 已提交
894 895 896

endmenu

897 898
source "net/Kconfig"

L
Linus Torvalds 已提交
899 900 901 902 903 904 905 906 907 908 909
source "drivers/Kconfig"

source "fs/Kconfig"

source "arch/sh/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"