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
M
Mathieu Desnoyers 已提交
8
	select HAVE_OPROFILE
9
	select HAVE_GENERIC_DMA_COHERENT
10
	select HAVE_ARCH_TRACEHOOK
11
	select HAVE_DMA_API_DEBUG
12
	select HAVE_DMA_ATTRS
13
	select HAVE_IRQ_WORK
14
	select HAVE_PERF_EVENTS
15
	select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
16
	select PERF_USE_VMALLOC
17
	select HAVE_KERNEL_GZIP
P
Paul Mundt 已提交
18 19
	select HAVE_KERNEL_BZIP2
	select HAVE_KERNEL_LZMA
P
Paul Mundt 已提交
20
	select HAVE_KERNEL_XZ
21
	select HAVE_KERNEL_LZO
22
	select HAVE_SYSCALL_TRACEPOINTS
P
Paul Mundt 已提交
23
	select HAVE_REGS_AND_STACK_ACCESS_API
P
Paul Mundt 已提交
24 25
	select HAVE_GENERIC_HARDIRQS
	select HAVE_SPARSE_IRQ
P
Paul Mundt 已提交
26
	select IRQ_FORCED_THREADING
27
	select RTC_LIB
28
	select GENERIC_ATOMIC64
29
	select GENERIC_IRQ_SHOW
L
Linus Torvalds 已提交
30 31 32 33 34 35
	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
36
config SUPERH32
37
	def_bool ARCH = "sh"
C
Chris Smith 已提交
38 39
	select HAVE_KPROBES
	select HAVE_KRETPROBES
40
	select HAVE_IOREMAP_PROT if MMU && !X2TLB
41
	select HAVE_FUNCTION_TRACER
M
Matt Fleming 已提交
42 43
	select HAVE_FTRACE_MCOUNT_RECORD
	select HAVE_DYNAMIC_FTRACE
44
	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
45
	select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
M
Matt Fleming 已提交
46
	select HAVE_FUNCTION_GRAPH_TRACER
P
Paul Mundt 已提交
47
	select HAVE_ARCH_KGDB
48
	select HAVE_HW_BREAKPOINT
49
	select HAVE_MIXED_BREAKPOINTS_REGS
50
	select PERF_EVENTS
51
	select ARCH_HIBERNATION_POSSIBLE if MMU
P
Paul Mundt 已提交
52
	select SPARSE_IRQ
53 54

config SUPERH64
55
	def_bool ARCH = "sh64"
P
Paul Mundt 已提交
56

57 58 59 60 61
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
62
config RWSEM_GENERIC_SPINLOCK
63
	def_bool y
L
Linus Torvalds 已提交
64 65 66 67

config RWSEM_XCHGADD_ALGORITHM
	bool

P
Paul Mundt 已提交
68 69
config GENERIC_BUG
	def_bool y
70
	depends on BUG && SUPERH32
P
Paul Mundt 已提交
71

72 73 74 75
config GENERIC_CSUM
	def_bool y
	depends on SUPERH64

76
config GENERIC_HWEIGHT
77
	def_bool y
78

P
Paul Mundt 已提交
79 80 81
config IRQ_PER_CPU
	def_bool y

M
Magnus Damm 已提交
82 83 84
config GENERIC_GPIO
	def_bool n

L
Linus Torvalds 已提交
85
config GENERIC_CALIBRATE_DELAY
86
	bool
L
Linus Torvalds 已提交
87

88 89 90
config GENERIC_IOMAP
	bool

91
config GENERIC_CLOCKEVENTS
92
	def_bool y
93

94 95 96
config GENERIC_CLOCKEVENTS_BROADCAST
	bool

97 98 99 100
config GENERIC_CMOS_UPDATE
	def_bool y
	depends on SH_SH03 || SH_DREAMCAST

P
Paul Mundt 已提交
101 102 103 104
config GENERIC_LOCKBREAK
	def_bool y
	depends on SMP && PREEMPT

M
Magnus Damm 已提交
105 106 107 108 109
config ARCH_SUSPEND_POSSIBLE
	def_bool n

config ARCH_HIBERNATION_POSSIBLE
	def_bool n
110

111 112
config SYS_SUPPORTS_APM_EMULATION
	bool
M
Magnus Damm 已提交
113
	select ARCH_SUSPEND_POSSIBLE
114

115 116 117
config SYS_SUPPORTS_HUGETLBFS
	bool

118 119 120 121 122 123 124 125
config SYS_SUPPORTS_SMP
	bool

config SYS_SUPPORTS_NUMA
	bool

config SYS_SUPPORTS_PCI
	bool
126

127 128 129
config SYS_SUPPORTS_CMT
	bool

130 131 132
config SYS_SUPPORTS_MTU2
	bool

133 134 135
config SYS_SUPPORTS_TMU
	bool

136
config STACKTRACE_SUPPORT
137
	def_bool y
138 139

config LOCKDEP_SUPPORT
140
	def_bool y
141

P
Paul Mundt 已提交
142 143 144
config HAVE_LATENCYTOP_SUPPORT
	def_bool y

145
config ARCH_HAS_ILOG2_U32
146
	def_bool n
147 148

config ARCH_HAS_ILOG2_U64
149
	def_bool n
150

151 152 153
config ARCH_NO_VIRT_TO_BUS
	def_bool y

154 155 156
config ARCH_HAS_DEFAULT_IDLE
	def_bool y

157 158 159
config ARCH_HAS_CPU_IDLE_WAIT
	def_bool y

160
config NO_IOPORT
P
Paul Mundt 已提交
161
	def_bool !PCI
162
	depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN
163

M
Magnus Damm 已提交
164 165 166
config IO_TRAPPED
	bool

167 168 169 170 171 172
config DMA_COHERENT
	bool

config DMA_NONCOHERENT
	def_bool !DMA_COHERENT

173 174 175
config NEED_DMA_MAP_STATE
	def_bool DMA_NONCOHERENT

176 177 178
config NEED_SG_DMA_LENGTH
	def_bool y

L
Linus Torvalds 已提交
179 180
source "init/Kconfig"

181 182
source "kernel/Kconfig.freezer"

L
Linus Torvalds 已提交
183 184
menu "System type"

185 186 187 188 189 190 191 192 193
#
# Processor families
#
config CPU_SH2
	bool

config CPU_SH2A
	bool
	select CPU_SH2
P
Paul Mundt 已提交
194
	select UNCACHED_MAPPING
195 196 197 198 199

config CPU_SH3
	bool
	select CPU_HAS_INTEVT
	select CPU_HAS_SR_RB
200
	select SYS_SUPPORTS_TMU
201 202 203 204 205 206

config CPU_SH4
	bool
	select CPU_HAS_INTEVT
	select CPU_HAS_SR_RB
	select CPU_HAS_FPU if !CPU_SH4AL_DSP
207
	select SYS_SUPPORTS_TMU
208
	select SYS_SUPPORTS_HUGETLBFS if MMU
209 210 211 212 213 214 215 216 217 218

config CPU_SH4A
	bool
	select CPU_SH4

config CPU_SH4AL_DSP
	bool
	select CPU_SH4A
	select CPU_HAS_DSP

219 220 221
config CPU_SH5
	bool
	select CPU_HAS_FPU
222
	select SYS_SUPPORTS_TMU
223
	select SYS_SUPPORTS_HUGETLBFS if MMU
224

225 226 227 228 229
config CPU_SHX2
	bool

config CPU_SHX3
	bool
230
	select DMA_COHERENT
231 232
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_NUMA
233

234 235
config ARCH_SHMOBILE
	bool
M
Magnus Damm 已提交
236
	select ARCH_SUSPEND_POSSIBLE
237 238
	select PM
	select PM_RUNTIME
239

240 241 242 243 244
config CPU_HAS_PMU
       depends on CPU_SH4 || CPU_SH4A
       default y
       bool

245 246
if SUPERH32

247 248 249 250 251 252 253 254 255 256 257 258
choice
	prompt "Processor sub-type selection"

#
# Processor subtypes
#

# SH-2 Processor Support

config CPU_SUBTYPE_SH7619
	bool "Support SH7619 processor"
	select CPU_SH2
259
	select SYS_SUPPORTS_CMT
260 261 262

# SH-2A Processor Support

263 264 265 266
config CPU_SUBTYPE_SH7201
	bool "Support SH7201 processor"
	select CPU_SH2A
	select CPU_HAS_FPU
M
Magnus Damm 已提交
267
	select SYS_SUPPORTS_MTU2
268
 
P
Paul Mundt 已提交
269 270 271
config CPU_SUBTYPE_SH7203
	bool "Support SH7203 processor"
	select CPU_SH2A
P
Paul Mundt 已提交
272
	select CPU_HAS_FPU
273
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
274
	select SYS_SUPPORTS_MTU2
275
	select ARCH_WANT_OPTIONAL_GPIOLIB
P
Paul Mundt 已提交
276

277 278 279
config CPU_SUBTYPE_SH7206
	bool "Support SH7206 processor"
	select CPU_SH2A
280
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
281
	select SYS_SUPPORTS_MTU2
282

P
Paul Mundt 已提交
283 284 285
config CPU_SUBTYPE_SH7263
	bool "Support SH7263 processor"
	select CPU_SH2A
P
Paul Mundt 已提交
286
	select CPU_HAS_FPU
287
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
288
	select SYS_SUPPORTS_MTU2
P
Paul Mundt 已提交
289

290 291 292
config CPU_SUBTYPE_MXG
	bool "Support MX-G processor"
	select CPU_SH2A
M
Magnus Damm 已提交
293
	select SYS_SUPPORTS_MTU2
294 295 296
	help
	  Select MX-G if running on an R8A03022BG part.

297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345
# 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
346
	select SYS_SUPPORTS_CMT
347
	select ARCH_WANT_OPTIONAL_GPIOLIB
348
	select USB_ARCH_HAS_OHCI
349
	select USB_OHCI_SH if USB_OHCI_HCD
350 351 352
	help
	  Select SH7720 if you have a SH3-DSP SH7720 CPU.

353 354 355 356
config CPU_SUBTYPE_SH7721
	bool "Support SH7721 processor"
	select CPU_SH3
	select CPU_HAS_DSP
357
	select SYS_SUPPORTS_CMT
358
	select USB_ARCH_HAS_OHCI
359
	select USB_OHCI_SH if USB_OHCI_HCD
360 361 362
	help
	  Select SH7721 if you have a SH3-DSP SH7721 CPU.

363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406
# 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

407 408 409 410
config CPU_SUBTYPE_SH7723
	bool "Support SH7723 processor"
	select CPU_SH4A
	select CPU_SHX2
411
	select ARCH_SHMOBILE
412
	select ARCH_SPARSEMEM_ENABLE
413
	select SYS_SUPPORTS_CMT
414
	select ARCH_WANT_OPTIONAL_GPIOLIB
415 416 417
	help
	  Select SH7723 if you have an SH-MobileR2 CPU.

418 419 420 421
config CPU_SUBTYPE_SH7724
	bool "Support SH7724 processor"
	select CPU_SH4A
	select CPU_SHX2
422
	select ARCH_SHMOBILE
423 424
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_CMT
425
	select ARCH_WANT_OPTIONAL_GPIOLIB
426 427 428
	help
	  Select SH7724 if you have an SH-MobileR2R CPU.

429 430 431 432
config CPU_SUBTYPE_SH7757
	bool "Support SH7757 processor"
	select CPU_SH4A
	select CPU_SHX2
433
	select ARCH_WANT_OPTIONAL_GPIOLIB
434 435
	select USB_ARCH_HAS_OHCI
	select USB_ARCH_HAS_EHCI
436 437 438
	help
	  Select SH7757 if you have a SH4A SH7757 CPU.

439 440 441
config CPU_SUBTYPE_SH7763
	bool "Support SH7763 processor"
	select CPU_SH4A
442
	select USB_ARCH_HAS_OHCI
443
	select USB_OHCI_SH if USB_OHCI_HCD
444 445 446
	help
	  Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.

447 448 449 450 451 452 453 454 455 456 457 458
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
459 460
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
461
	select ARCH_WANT_OPTIONAL_GPIOLIB
462 463 464 465

config CPU_SUBTYPE_SH7786
	bool "Support SH7786 processor"
	select CPU_SH4A
466
	select CPU_SHX3
467
	select CPU_HAS_PTEAEX
P
Paul Mundt 已提交
468
	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
469
	select ARCH_WANT_OPTIONAL_GPIOLIB
470
	select USB_ARCH_HAS_OHCI
471
	select USB_OHCI_SH if USB_OHCI_HCD
472
	select USB_ARCH_HAS_EHCI
473
	select USB_EHCI_SH if USB_EHCI_HCD
474 475 476 477 478

config CPU_SUBTYPE_SHX3
	bool "Support SH-X3 processor"
	select CPU_SH4A
	select CPU_SHX3
479
	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
480
	select ARCH_REQUIRE_GPIOLIB
481 482 483 484 485 486

# SH4AL-DSP Processor Support

config CPU_SUBTYPE_SH7343
	bool "Support SH7343 processor"
	select CPU_SH4AL_DSP
487
	select ARCH_SHMOBILE
488
	select SYS_SUPPORTS_CMT
489 490 491 492 493

config CPU_SUBTYPE_SH7722
	bool "Support SH7722 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
494
	select ARCH_SHMOBILE
495 496
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
497
	select SYS_SUPPORTS_CMT
498
	select ARCH_WANT_OPTIONAL_GPIOLIB
499 500 501 502 503

config CPU_SUBTYPE_SH7366
	bool "Support SH7366 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
504
	select ARCH_SHMOBILE
505 506
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
507
	select SYS_SUPPORTS_CMT
508

509 510 511 512 513 514 515 516 517
endchoice

endif

if SUPERH64

choice
	prompt "Processor sub-type selection"

518 519 520 521 522 523 524 525
# 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"
526
	select CPU_SH5
527

528 529
endchoice

530 531
endif

P
Paul Mundt 已提交
532
source "arch/sh/mm/Kconfig"
533
 
534
source "arch/sh/Kconfig.cpu"
P
Paul Mundt 已提交
535

536
source "arch/sh/boards/Kconfig"
537 538 539

menu "Timer and clock configuration"

540 541
config SH_TIMER_TMU
	bool "TMU timer driver"
M
Magnus Damm 已提交
542
	depends on SYS_SUPPORTS_TMU
543 544 545 546
	default y
	help
	  This enables the build of the TMU timer driver.

547
config SH_TIMER_CMT
M
Magnus Damm 已提交
548 549 550 551 552
	bool "CMT timer driver"
	depends on SYS_SUPPORTS_CMT
	default y
	help
	  This enables build of the CMT timer driver.
553

554 555
config SH_TIMER_MTU2
	bool "MTU2 timer driver"
M
Magnus Damm 已提交
556
	depends on SYS_SUPPORTS_MTU2
557 558 559 560
	default y
	help
	  This enables build of the MTU2 timer driver.

561 562
config SH_PCLK_FREQ
	int "Peripheral clock frequency (in Hz)"
563
	depends on SH_CLK_CPG_LEGACY
564
	default "31250000" if CPU_SUBTYPE_SH7619
565 566 567 568 569 570
	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
571
			      CPU_SUBTYPE_MXG
P
Paul Mundt 已提交
572
	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
573
	default "66000000" if CPU_SUBTYPE_SH4_202
P
Paul Mundt 已提交
574
	default "50000000"
L
Linus Torvalds 已提交
575
	help
576 577 578
	  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
579

580 581 582
config SH_CLK_CPG
	def_bool y

583
config SH_CLK_CPG_LEGACY
584
	depends on SH_CLK_CPG
P
Paul Mundt 已提交
585
	def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
586
		      !CPU_SHX3 && !CPU_SUBTYPE_SH7757
587

588 589
source "kernel/time/Kconfig"

590 591
endmenu

592 593 594
menu "CPU Frequency scaling"

source "drivers/cpufreq/Kconfig"
L
Linus Torvalds 已提交
595

596 597
config SH_CPU_FREQ
	tristate "SuperH CPU Frequency driver"
598
	depends on CPU_FREQ
599
	select CPU_FREQ_TABLE
L
Linus Torvalds 已提交
600
	help
P
Paul Mundt 已提交
601 602 603 604 605 606
	  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
607

608
	  For details, take a look at <file:Documentation/cpu-freq>.
L
Linus Torvalds 已提交
609 610 611

	  If unsure, say N.

612 613
endmenu

P
Paul Mundt 已提交
614 615
source "arch/sh/drivers/Kconfig"

616
endmenu
L
Linus Torvalds 已提交
617

618 619
menu "Kernel features"

P
Paul Mundt 已提交
620 621
source kernel/Kconfig.hz

622 623
config KEXEC
	bool "kexec system call (EXPERIMENTAL)"
624
	depends on SUPERH32 && EXPERIMENTAL && MMU
L
Linus Torvalds 已提交
625
	help
626 627
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
628
	  but it is independent of the system firmware.  And like a reboot
629 630
	  you can start any kernel with it, not just Linux.

631
	  The name comes from the similarity to the exec system call.
632 633 634 635 636 637 638

	  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
639 640
config CRASH_DUMP
	bool "kernel crash dumps (EXPERIMENTAL)"
641
	depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
P
Paul Mundt 已提交
642 643 644 645 646 647 648
	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
649
	  PHYSICAL_START.
P
Paul Mundt 已提交
650 651 652

	  For more details see Documentation/kdump/kdump.txt

M
Magnus Damm 已提交
653 654 655 656 657 658 659
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
660 661 662 663 664 665 666 667 668 669 670
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
671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686
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
687 688
config SMP
	bool "Symmetric multi-processing support"
689
	depends on SYS_SUPPORTS_SMP
690
	select USE_GENERIC_SMP_HELPERS
L
Linus Torvalds 已提交
691 692 693 694 695 696 697 698 699 700 701 702 703 704
	---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
705 706
	  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
707 708 709 710 711 712 713

	  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
714
	default "4" if CPU_SUBTYPE_SHX3
L
Linus Torvalds 已提交
715 716 717 718 719 720 721 722 723
	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
724 725 726 727 728 729 730
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
731 732
source "kernel/Kconfig.preempt"

P
Paul Mundt 已提交
733 734
config GUSA
	def_bool y
735
	depends on !SMP && SUPERH32
P
Paul Mundt 已提交
736 737 738 739 740 741 742 743 744 745 746
	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.

747 748 749 750 751
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
752
	  atomic operations using a software implementation of load-locked/
753 754
	  store-conditional (LLSC). On machines which do not have hardware
	  LLSC, this should be more efficient than the other alternative of
755
	  disabling interrupts around the atomic sequence.
756

757 758 759 760 761 762 763 764
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
765 766
source "drivers/sh/Kconfig"

767
endmenu
L
Linus Torvalds 已提交
768

769
menu "Boot options"
L
Linus Torvalds 已提交
770

771
config ZERO_PAGE_OFFSET
772 773 774 775
	hex
	default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
				SH_7751_SOLUTION_ENGINE
	default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
776
	default "0x00002000" if PAGE_SIZE_8KB
777
	default "0x00001000"
L
Linus Torvalds 已提交
778
	help
779
	  This sets the default offset of zero page.
L
Linus Torvalds 已提交
780

781
config BOOT_LINK_OFFSET
782 783
	hex
	default "0x00210000" if SH_SHMIN
784
	default "0x00400000" if SH_CAYMAN
785 786 787 788
	default "0x00810000" if SH_7780_SOLUTION_ENGINE
	default "0x009e0000" if SH_TITAN
	default "0x01800000" if SH_SDK7780
	default "0x02000000" if SH_EDOSK7760
789 790 791 792 793
	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
794

795 796 797 798 799 800 801 802
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"

803 804 805 806 807 808 809 810 811 812 813
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.

814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834
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
835

836
config CMDLINE
837 838
	string "Kernel command line arguments string"
	depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
839
	default "console=ttySC1,115200"
L
Linus Torvalds 已提交
840 841 842

endmenu

843
menu "Bus options"
L
Linus Torvalds 已提交
844

845 846 847
config SUPERHYWAY
	tristate "SuperHyway Bus support"
	depends on CPU_SUBTYPE_SH4_202
L
Linus Torvalds 已提交
848

849
config MAPLE
850 851 852 853 854 855 856 857 858
	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.
859

860 861 862
config PCI
	bool "PCI support"
	depends on SYS_SUPPORTS_PCI
P
Paul Mundt 已提交
863
	select PCI_DOMAINS
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"