Kconfig 17.5 KB
Newer Older
L
Linus Torvalds 已提交
1 2 3 4 5 6 7 8
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#

mainmenu "Linux/SuperH Kernel Configuration"

config SUPERH
9
	def_bool y
P
Paul Mundt 已提交
10
	select EMBEDDED
11
	select HAVE_CLK
S
Sam Ravnborg 已提交
12
	select HAVE_IDE
M
Mathieu Desnoyers 已提交
13
	select HAVE_OPROFILE
14
	select HAVE_GENERIC_DMA_COHERENT
15
	select HAVE_IOREMAP_PROT if MMU
16
	select HAVE_ARCH_TRACEHOOK
17
	select HAVE_DMA_API_DEBUG
18
	select RTC_LIB
L
Linus Torvalds 已提交
19 20 21 22 23 24
	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
25
config SUPERH32
26
	def_bool ARCH = "sh"
C
Chris Smith 已提交
27 28
	select HAVE_KPROBES
	select HAVE_KRETPROBES
29
	select HAVE_FUNCTION_TRACER
M
Matt Fleming 已提交
30 31
	select HAVE_FTRACE_MCOUNT_RECORD
	select HAVE_DYNAMIC_FTRACE
P
Paul Mundt 已提交
32
	select HAVE_ARCH_KGDB
33
	select ARCH_HIBERNATION_POSSIBLE if MMU
34 35

config SUPERH64
36
	def_bool ARCH = "sh64"
P
Paul Mundt 已提交
37

38 39 40 41 42
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
43
config RWSEM_GENERIC_SPINLOCK
44
	def_bool y
L
Linus Torvalds 已提交
45 46 47 48

config RWSEM_XCHGADD_ALGORITHM
	bool

P
Paul Mundt 已提交
49 50
config GENERIC_BUG
	def_bool y
51
	depends on BUG && SUPERH32
P
Paul Mundt 已提交
52

53
config GENERIC_FIND_NEXT_BIT
54
	def_bool y
55 56

config GENERIC_HWEIGHT
57
	def_bool y
58

L
Linus Torvalds 已提交
59
config GENERIC_HARDIRQS
60
	def_bool y
L
Linus Torvalds 已提交
61

62 63 64
config GENERIC_HARDIRQS_NO__DO_IRQ
	def_bool y

L
Linus Torvalds 已提交
65
config GENERIC_IRQ_PROBE
66
	def_bool y
L
Linus Torvalds 已提交
67

M
Magnus Damm 已提交
68 69 70
config GENERIC_GPIO
	def_bool n

L
Linus Torvalds 已提交
71
config GENERIC_CALIBRATE_DELAY
72
	bool
L
Linus Torvalds 已提交
73

74 75 76
config GENERIC_IOMAP
	bool

77
config GENERIC_TIME
78
	def_bool y
79

80
config GENERIC_CLOCKEVENTS
81
	def_bool y
82

83 84 85
config GENERIC_CLOCKEVENTS_BROADCAST
	bool

86 87 88 89
config GENERIC_CMOS_UPDATE
	def_bool y
	depends on SH_SH03 || SH_DREAMCAST

P
Paul Mundt 已提交
90 91 92 93
config GENERIC_LOCKBREAK
	def_bool y
	depends on SMP && PREEMPT

94 95
config SYS_SUPPORTS_PM
	bool
M
Magnus Damm 已提交
96 97 98 99 100 101 102
	depends on !SMP

config ARCH_SUSPEND_POSSIBLE
	def_bool n

config ARCH_HIBERNATION_POSSIBLE
	def_bool n
103

104 105
config SYS_SUPPORTS_APM_EMULATION
	bool
M
Magnus Damm 已提交
106
	select ARCH_SUSPEND_POSSIBLE
107 108 109 110 111 112 113 114 115

config SYS_SUPPORTS_SMP
	bool

config SYS_SUPPORTS_NUMA
	bool

config SYS_SUPPORTS_PCI
	bool
116

117 118 119
config SYS_SUPPORTS_CMT
	bool

120 121 122
config SYS_SUPPORTS_MTU2
	bool

123 124 125
config SYS_SUPPORTS_TMU
	bool

126
config STACKTRACE_SUPPORT
127
	def_bool y
128 129

config LOCKDEP_SUPPORT
130
	def_bool y
131

P
Paul Mundt 已提交
132 133 134 135
config HAVE_LATENCYTOP_SUPPORT
	def_bool y
	depends on !SMP

136
config ARCH_HAS_ILOG2_U32
137
	def_bool n
138 139

config ARCH_HAS_ILOG2_U64
140
	def_bool n
141

142 143 144
config ARCH_NO_VIRT_TO_BUS
	def_bool y

145 146 147
config ARCH_HAS_DEFAULT_IDLE
	def_bool y

M
Magnus Damm 已提交
148 149 150
config IO_TRAPPED
	bool

L
Linus Torvalds 已提交
151 152
source "init/Kconfig"

153 154
source "kernel/Kconfig.freezer"

L
Linus Torvalds 已提交
155 156
menu "System type"

157 158 159 160 161 162 163 164 165 166 167 168 169 170
#
# Processor families
#
config CPU_SH2
	bool

config CPU_SH2A
	bool
	select CPU_SH2

config CPU_SH3
	bool
	select CPU_HAS_INTEVT
	select CPU_HAS_SR_RB
171
	select SYS_SUPPORTS_TMU
172 173 174 175 176 177 178

config CPU_SH4
	bool
	select CPU_HAS_INTEVT
	select CPU_HAS_SR_RB
	select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
	select CPU_HAS_FPU if !CPU_SH4AL_DSP
179
	select SYS_SUPPORTS_TMU
180 181 182 183 184 185 186 187 188 189

config CPU_SH4A
	bool
	select CPU_SH4

config CPU_SH4AL_DSP
	bool
	select CPU_SH4A
	select CPU_HAS_DSP

190 191 192
config CPU_SH5
	bool
	select CPU_HAS_FPU
193
	select SYS_SUPPORTS_TMU
194

195 196 197 198 199 200
config CPU_SHX2
	bool

config CPU_SHX3
	bool

201 202
config ARCH_SHMOBILE
	bool
M
Magnus Damm 已提交
203
	select ARCH_SUSPEND_POSSIBLE
204

205 206
if SUPERH32

207 208 209 210 211 212 213 214 215 216 217 218
choice
	prompt "Processor sub-type selection"

#
# Processor subtypes
#

# SH-2 Processor Support

config CPU_SUBTYPE_SH7619
	bool "Support SH7619 processor"
	select CPU_SH2
219
	select SYS_SUPPORTS_CMT
220 221 222

# SH-2A Processor Support

223 224 225 226
config CPU_SUBTYPE_SH7201
	bool "Support SH7201 processor"
	select CPU_SH2A
	select CPU_HAS_FPU
M
Magnus Damm 已提交
227
	select SYS_SUPPORTS_MTU2
228
 
P
Paul Mundt 已提交
229 230 231
config CPU_SUBTYPE_SH7203
	bool "Support SH7203 processor"
	select CPU_SH2A
P
Paul Mundt 已提交
232
	select CPU_HAS_FPU
233
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
234
	select SYS_SUPPORTS_MTU2
P
Paul Mundt 已提交
235

236 237 238
config CPU_SUBTYPE_SH7206
	bool "Support SH7206 processor"
	select CPU_SH2A
239
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
240
	select SYS_SUPPORTS_MTU2
241

P
Paul Mundt 已提交
242 243 244
config CPU_SUBTYPE_SH7263
	bool "Support SH7263 processor"
	select CPU_SH2A
P
Paul Mundt 已提交
245
	select CPU_HAS_FPU
246
	select SYS_SUPPORTS_CMT
M
Magnus Damm 已提交
247
	select SYS_SUPPORTS_MTU2
P
Paul Mundt 已提交
248

249 250 251
config CPU_SUBTYPE_MXG
	bool "Support MX-G processor"
	select CPU_SH2A
M
Magnus Damm 已提交
252
	select SYS_SUPPORTS_MTU2
253 254 255
	help
	  Select MX-G if running on an R8A03022BG part.

256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307
# 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
	help
	  Select SH7720 if you have a SH3-DSP SH7720 CPU.

308 309 310 311 312 313 314
config CPU_SUBTYPE_SH7721
	bool "Support SH7721 processor"
	select CPU_SH3
	select CPU_HAS_DSP
	help
	  Select SH7721 if you have a SH3-DSP SH7721 CPU.

315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358
# 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

359 360 361 362
config CPU_SUBTYPE_SH7723
	bool "Support SH7723 processor"
	select CPU_SH4A
	select CPU_SHX2
363
	select ARCH_SHMOBILE
364
	select ARCH_SPARSEMEM_ENABLE
365
	select SYS_SUPPORTS_CMT
366 367 368
	help
	  Select SH7723 if you have an SH-MobileR2 CPU.

369 370 371 372
config CPU_SUBTYPE_SH7724
	bool "Support SH7724 processor"
	select CPU_SH4A
	select CPU_SHX2
373
	select ARCH_SHMOBILE
374 375 376 377 378
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_CMT
	help
	  Select SH7724 if you have an SH-MobileR2R CPU.

379 380 381 382 383 384
config CPU_SUBTYPE_SH7763
	bool "Support SH7763 processor"
	select CPU_SH4A
	help
	  Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.

385 386 387 388 389 390 391 392 393 394 395 396
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
397 398 399 400 401 402
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA

config CPU_SUBTYPE_SH7786
	bool "Support SH7786 processor"
	select CPU_SH4A
403
	select CPU_SHX3
404
	select CPU_HAS_PTEAEX
405 406 407 408 409 410 411 412 413 414
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA

config CPU_SUBTYPE_SHX3
	bool "Support SH-X3 processor"
	select CPU_SH4A
	select CPU_SHX3
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
	select SYS_SUPPORTS_SMP
415
	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
416 417 418 419 420 421

# SH4AL-DSP Processor Support

config CPU_SUBTYPE_SH7343
	bool "Support SH7343 processor"
	select CPU_SH4AL_DSP
422
	select ARCH_SHMOBILE
423
	select SYS_SUPPORTS_CMT
424 425 426 427 428

config CPU_SUBTYPE_SH7722
	bool "Support SH7722 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
429
	select ARCH_SHMOBILE
430 431
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
432
	select SYS_SUPPORTS_CMT
433 434 435 436 437

config CPU_SUBTYPE_SH7366
	bool "Support SH7366 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
438
	select ARCH_SHMOBILE
439 440
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
441
	select SYS_SUPPORTS_CMT
442

443 444 445 446 447 448 449 450 451
endchoice

endif

if SUPERH64

choice
	prompt "Processor sub-type selection"

452 453 454 455 456 457 458 459
# 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"
460
	select CPU_SH5
461

462 463
endchoice

464 465
endif

P
Paul Mundt 已提交
466
source "arch/sh/mm/Kconfig"
467
 
468
source "arch/sh/Kconfig.cpu"
P
Paul Mundt 已提交
469

470
source "arch/sh/boards/Kconfig"
471 472 473

menu "Timer and clock configuration"

474
config SH_TMU
475
	bool "TMU timer support"
476
	depends on CPU_SH3 || CPU_SH4
477
	default y
L
Linus Torvalds 已提交
478
	help
479
	  This enables the use of the TMU as the system timer.
L
Linus Torvalds 已提交
480

481 482 483 484 485 486 487
config SH_TIMER_TMU
	bool "TMU timer driver"
	depends on !SH_TMU && SYS_SUPPORTS_TMU
	default y
	help
	  This enables the build of the TMU timer driver.

488
config SH_TIMER_CMT
M
Magnus Damm 已提交
489 490 491 492 493
	bool "CMT timer driver"
	depends on SYS_SUPPORTS_CMT
	default y
	help
	  This enables build of the CMT timer driver.
494

495 496
config SH_TIMER_MTU2
	bool "MTU2 timer driver"
M
Magnus Damm 已提交
497
	depends on SYS_SUPPORTS_MTU2
498 499 500 501
	default y
	help
	  This enables build of the MTU2 timer driver.

P
Paul Mundt 已提交
502 503
config SH_TIMER_IRQ
	int
504 505
	default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
			CPU_SUBTYPE_SH7763
P
Paul Mundt 已提交
506 507
	default "86" if CPU_SUBTYPE_SH7619
	default "140" if CPU_SUBTYPE_SH7206
P
Paul Mundt 已提交
508 509
	default "142" if CPU_SUBTYPE_SH7203 && SH_CMT
	default "153" if CPU_SUBTYPE_SH7203 && SH_MTU2
510
	default "238" if CPU_SUBTYPE_MXG
P
Paul Mundt 已提交
511 512
	default "16"

513 514
config SH_PCLK_FREQ
	int "Peripheral clock frequency (in Hz)"
515
	default "27000000" if CPU_SUBTYPE_SH7343
516
	default "31250000" if CPU_SUBTYPE_SH7619
P
Paul Mundt 已提交
517
	default "32000000" if CPU_SUBTYPE_SH7722
518
	default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
519
			      CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
P
Paul Mundt 已提交
520
			      CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
521 522
			      CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG    || \
			      CPU_SUBTYPE_SH7786
523
	default "41666666" if CPU_SUBTYPE_SH7724
P
Paul Mundt 已提交
524
	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
525
	default "66000000" if CPU_SUBTYPE_SH4_202
P
Paul Mundt 已提交
526
	default "50000000"
L
Linus Torvalds 已提交
527
	help
528 529 530
	  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
531

532 533
config SH_CLK_MD
	int "CPU Mode Pin Setting"
P
Paul Mundt 已提交
534
	depends on CPU_SH2
535 536 537
	default 6 if CPU_SUBTYPE_SH7206
	default 5 if CPU_SUBTYPE_SH7619
	default 0
538
	help
539
	  MD2 - MD0 pin setting.
540

541 542
source "kernel/time/Kconfig"

543 544
endmenu

545 546 547
menu "CPU Frequency scaling"

source "drivers/cpufreq/Kconfig"
L
Linus Torvalds 已提交
548

549 550
config SH_CPU_FREQ
	tristate "SuperH CPU Frequency driver"
551
	depends on CPU_FREQ
552
	select CPU_FREQ_TABLE
L
Linus Torvalds 已提交
553
	help
P
Paul Mundt 已提交
554 555 556 557 558 559
	  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
560

561
	  For details, take a look at <file:Documentation/cpu-freq>.
L
Linus Torvalds 已提交
562 563 564

	  If unsure, say N.

565 566
endmenu

P
Paul Mundt 已提交
567 568
source "arch/sh/drivers/Kconfig"

569
endmenu
L
Linus Torvalds 已提交
570

571 572
menu "Kernel features"

P
Paul Mundt 已提交
573 574
source kernel/Kconfig.hz

575 576
config KEXEC
	bool "kexec system call (EXPERIMENTAL)"
577
	depends on SUPERH32 && EXPERIMENTAL && MMU
L
Linus Torvalds 已提交
578
	help
579 580
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
581
	  but it is independent of the system firmware.  And like a reboot
582 583
	  you can start any kernel with it, not just Linux.

584
	  The name comes from the similarity to the exec system call.
585 586 587 588 589 590 591

	  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
592 593
config CRASH_DUMP
	bool "kernel crash dumps (EXPERIMENTAL)"
594
	depends on SUPERH32 && EXPERIMENTAL
P
Paul Mundt 已提交
595 596 597 598 599 600 601 602 603 604 605
	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
	  MEMORY_START.

	  For more details see Documentation/kdump/kdump.txt

M
Magnus Damm 已提交
606 607 608 609 610 611 612
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

P
Paul Mundt 已提交
613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628
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
629 630
config SMP
	bool "Symmetric multi-processing support"
631
	depends on SYS_SUPPORTS_SMP
632
	select USE_GENERIC_SMP_HELPERS
L
Linus Torvalds 已提交
633 634 635 636 637 638 639 640 641 642 643 644 645 646
	---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
647 648
	  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
649 650 651 652 653 654 655

	  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
656
	default "4" if CPU_SHX3
L
Linus Torvalds 已提交
657 658 659 660 661 662 663 664 665
	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
666 667
source "kernel/Kconfig.preempt"

P
Paul Mundt 已提交
668 669
config GUSA
	def_bool y
670
	depends on !SMP && SUPERH32
P
Paul Mundt 已提交
671 672 673 674 675 676 677 678 679 680 681
	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.

682 683 684 685 686
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
687
	  atomic operations using a software implementation of load-locked/
688 689
	  store-conditional (LLSC). On machines which do not have hardware
	  LLSC, this should be more efficient than the other alternative of
690
	  disabling interrupts around the atomic sequence.
691

692
endmenu
L
Linus Torvalds 已提交
693

694
menu "Boot options"
L
Linus Torvalds 已提交
695

696 697
config ZERO_PAGE_OFFSET
	hex "Zero page offset"
698
	default "0x00004000" if SH_SH03
699 700
	default "0x00010000" if PAGE_SIZE_64KB
	default "0x00002000" if PAGE_SIZE_8KB
701
	default "0x00001000"
L
Linus Torvalds 已提交
702
	help
703
	  This sets the default offset of zero page.
L
Linus Torvalds 已提交
704

705 706 707 708 709 710 711
config BOOT_LINK_OFFSET
	hex "Link address offset for booting"
	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
712

713 714
config UBC_WAKEUP
	bool "Wakeup UBC on startup"
P
Paul Mundt 已提交
715
	depends on CPU_SH4 && !CPU_SH4A
716 717 718 719 720
	help
	  Selecting this option will wakeup the User Break Controller (UBC) on
	  startup. Although the UBC is left in an awake state when the processor
	  comes up, some boot loaders misbehave by putting the UBC to sleep in a
	  power saving state, which causes issues with things like ptrace().
L
Linus Torvalds 已提交
721

722
	  If unsure, say N.
L
Linus Torvalds 已提交
723

724 725
config CMDLINE_BOOL
	bool "Default bootloader kernel arguments"
L
Linus Torvalds 已提交
726

727 728 729 730
config CMDLINE
	string "Initial kernel command string"
	depends on CMDLINE_BOOL
	default "console=ttySC1,115200"
L
Linus Torvalds 已提交
731 732 733

endmenu

734
menu "Bus options"
L
Linus Torvalds 已提交
735

736 737 738
config SUPERHYWAY
	tristate "SuperHyway Bus support"
	depends on CPU_SUBTYPE_SH4_202
L
Linus Torvalds 已提交
739

740
config MAPLE
741 742 743 744 745 746 747 748 749
	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.
750

L
Linus Torvalds 已提交
751 752
source "arch/sh/drivers/pci/Kconfig"

753 754
source "drivers/pci/pcie/Kconfig"

L
Linus Torvalds 已提交
755 756 757 758 759 760 761 762 763 764 765 766 767 768
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
769
menu "Power management options (EXPERIMENTAL)"
M
Magnus Damm 已提交
770
depends on EXPERIMENTAL
J
Johannes Berg 已提交
771

M
Magnus Damm 已提交
772 773 774
source "kernel/power/Kconfig"

source "drivers/cpuidle/Kconfig"
A
Andriy Skulysh 已提交
775 776 777

endmenu

778 779
source "net/Kconfig"

L
Linus Torvalds 已提交
780 781 782 783 784 785 786 787 788 789 790
source "drivers/Kconfig"

source "fs/Kconfig"

source "arch/sh/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"