Kconfig 44.0 KB
Newer Older
L
Linus Torvalds 已提交
1 2 3 4 5 6 7 8 9 10
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#

mainmenu "Linux Kernel Configuration"

config ARM
	bool
	default y
11
	select HAVE_AOUT
A
Adrian Bunk 已提交
12
	select HAVE_IDE
13
	select RTC_LIB
14
	select SYS_SUPPORTS_APM_EMULATION
15
	select GENERIC_ATOMIC64 if (!CPU_32v6K)
16
	select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
J
Jason Wessel 已提交
17
	select HAVE_ARCH_KGDB
M
Mathieu Desnoyers 已提交
18
	select HAVE_KPROBES if (!XIP_KERNEL)
19
	select HAVE_KRETPROBES if (HAVE_KPROBES)
20
	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
21
	select HAVE_GENERIC_DMA_COHERENT
22 23
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_LZO
24
	select HAVE_KERNEL_LZMA
25 26
	select HAVE_PERF_EVENTS
	select PERF_USE_VMALLOC
L
Linus Torvalds 已提交
27 28
	help
	  The ARM series is a line of low-power-consumption RISC chip designs
29
	  licensed by ARM Ltd and targeted at embedded applications and
L
Linus Torvalds 已提交
30
	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
31
	  manufactured, but legacy ARM-based PC hardware remains popular in
L
Linus Torvalds 已提交
32 33 34
	  Europe.  There is an ARM Linux project with a web page at
	  <http://www.arm.linux.org.uk/>.

R
Russell King 已提交
35 36 37
config HAVE_PWM
	bool

38 39 40
config SYS_SUPPORTS_APM_EMULATION
	bool

D
David Brownell 已提交
41 42 43
config GENERIC_GPIO
	bool

44 45
config GENERIC_TIME
	bool
46 47 48 49 50
	default y

config ARCH_USES_GETTIMEOFFSET
	bool
	default n
51

52 53 54
config GENERIC_CLOCKEVENTS
	bool

55 56 57 58 59
config GENERIC_CLOCKEVENTS_BROADCAST
	bool
	depends on GENERIC_CLOCKEVENTS
	default y if SMP && !LOCAL_TIMERS

60 61 62 63
config HAVE_TCM
	bool
	select GENERIC_ALLOCATOR

64 65 66
config HAVE_PROC_CPU
	bool

A
Al Viro 已提交
67 68 69
config NO_IOPORT
	bool

L
Linus Torvalds 已提交
70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
config EISA
	bool
	---help---
	  The Extended Industry Standard Architecture (EISA) bus was
	  developed as an open alternative to the IBM MicroChannel bus.

	  The EISA bus provided some of the features of the IBM MicroChannel
	  bus while maintaining backward compatibility with cards made for
	  the older ISA bus.  The EISA bus saw limited use between 1988 and
	  1995 when it was made obsolete by the PCI bus.

	  Say Y here if you are building a kernel for an EISA-based machine.

	  Otherwise, say N.

config SBUS
	bool

config MCA
	bool
	help
	  MicroChannel Architecture is found in some IBM PS/2 machines and
	  laptops.  It is a bus system similar to PCI or ISA. See
	  <file:Documentation/mca.txt> (and especially the web page given
	  there) before attempting to build an MCA bus kernel.

96 97 98 99
config GENERIC_HARDIRQS
	bool
	default y

100 101 102 103
config STACKTRACE_SUPPORT
	bool
	default y

N
Nicolas Pitre 已提交
104 105 106 107 108
config HAVE_LATENCYTOP_SUPPORT
	bool
	depends on !SMP
	default y

109 110 111 112
config LOCKDEP_SUPPORT
	bool
	default y

R
Russell King 已提交
113 114 115 116
config TRACE_IRQFLAGS_SUPPORT
	bool
	default y

117 118 119 120 121 122 123 124
config HARDIRQS_SW_RESEND
	bool
	default y

config GENERIC_IRQ_PROBE
	bool
	default y

N
Nick Piggin 已提交
125 126 127 128 129
config GENERIC_LOCKBREAK
	bool
	default y
	depends on SMP && PREEMPT

L
Linus Torvalds 已提交
130 131 132 133 134 135 136
config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

137 138 139 140 141 142
config ARCH_HAS_ILOG2_U32
	bool

config ARCH_HAS_ILOG2_U64
	bool

143 144 145 146 147 148 149
config ARCH_HAS_CPUFREQ
	bool
	help
	  Internal node to signify that the ARCH has CPUFREQ support
	  and that the relevant menu configurations are displayed for
	  it.

150 151 152 153
config GENERIC_HWEIGHT
	bool
	default y

L
Linus Torvalds 已提交
154 155 156 157
config GENERIC_CALIBRATE_DELAY
	bool
	default y

158 159 160
config ARCH_MAY_HAVE_PC_FDC
	bool

161 162 163
config ZONE_DMA
	bool

164 165 166
config NEED_DMA_MAP_STATE
       def_bool y

L
Linus Torvalds 已提交
167 168 169 170 171 172
config GENERIC_ISA_DMA
	bool

config FIQ
	bool

173 174 175
config ARCH_MTD_XIP
	bool

176 177 178
config GENERIC_HARDIRQS_NO__DO_IRQ
	def_bool y

179 180 181 182 183
config ARM_L1_CACHE_SHIFT_6
	bool
	help
	  Setting ARM L1 cache line size to 64 Bytes.

184 185
config VECTORS_BASE
	hex
186
	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
187 188 189 190 191
	default DRAM_BASE if REMAP_VECTORS_TO_RAM
	default 0x00000000
	help
	  The base address of exception vectors.

L
Linus Torvalds 已提交
192 193
source "init/Kconfig"

194 195
source "kernel/Kconfig.freezer"

L
Linus Torvalds 已提交
196 197
menu "System Type"

198 199 200 201 202 203 204
config MMU
	bool "MMU-based Paged Memory Management Support"
	default y
	help
	  Select if you want MMU-based virtualised addressing space
	  support by paged memory management. If unsure, say 'Y'.

205 206 207 208
#
# The "ARM system type" choice list is ordered alphabetically by option
# text.  Please add new entries in the option alphabetic order.
#
L
Linus Torvalds 已提交
209 210
choice
	prompt "ARM system type"
211
	default ARCH_VERSATILE
L
Linus Torvalds 已提交
212

213 214
config ARCH_AAEC2000
	bool "Agilent AAEC-2000 based"
215
	select CPU_ARM920T
216
	select ARM_AMBA
217
	select HAVE_CLK
218
	select ARCH_USES_GETTIMEOFFSET
219 220 221 222 223 224
	help
	  This enables support for systems based on the Agilent AAEC-2000

config ARCH_INTEGRATOR
	bool "ARM Ltd. Integrator family"
	select ARM_AMBA
225
	select ARCH_HAS_CPUFREQ
226
	select COMMON_CLKDEV
227
	select ICST
228
	select GENERIC_CLOCKEVENTS
229
	select PLAT_VERSATILE
230 231 232 233 234 235
	help
	  Support for ARM's Integrator platform.

config ARCH_REALVIEW
	bool "ARM Ltd. RealView family"
	select ARM_AMBA
236
	select COMMON_CLKDEV
237
	select ICST
238
	select GENERIC_CLOCKEVENTS
239
	select ARCH_WANT_OPTIONAL_GPIOLIB
240
	select PLAT_VERSATILE
241
	select ARM_TIMER_SP804
242
	select GPIO_PL061 if GPIOLIB
243 244 245 246 247 248 249
	help
	  This enables support for ARM Ltd RealView boards.

config ARCH_VERSATILE
	bool "ARM Ltd. Versatile family"
	select ARM_AMBA
	select ARM_VIC
250
	select COMMON_CLKDEV
251
	select ICST
252
	select GENERIC_CLOCKEVENTS
253
	select ARCH_WANT_OPTIONAL_GPIOLIB
254
	select PLAT_VERSATILE
255
	select ARM_TIMER_SP804
256 257 258
	help
	  This enables support for ARM Ltd Versatile board.

259 260 261 262 263 264 265 266 267 268 269 270 271
config ARCH_VEXPRESS
	bool "ARM Ltd. Versatile Express family"
	select ARCH_WANT_OPTIONAL_GPIOLIB
	select ARM_AMBA
	select ARM_TIMER_SP804
	select COMMON_CLKDEV
	select GENERIC_CLOCKEVENTS
	select HAVE_CLK
	select ICST
	select PLAT_VERSATILE
	help
	  This enables support for the ARM Ltd Versatile Express boards.

272 273
config ARCH_AT91
	bool "Atmel AT91"
274
	select ARCH_REQUIRE_GPIOLIB
D
David Brownell 已提交
275
	select HAVE_CLK
276
	select ARCH_USES_GETTIMEOFFSET
277
	help
278 279
	  This enables support for systems based on the Atmel AT91RM9200,
	  AT91SAM9 and AT91CAP9 processors.
280

281 282 283 284 285 286 287 288 289 290 291
config ARCH_BCMRING
	bool "Broadcom BCMRING"
	depends on MMU
	select CPU_V6
	select ARM_AMBA
	select COMMON_CLKDEV
	select GENERIC_CLOCKEVENTS
	select ARCH_WANT_OPTIONAL_GPIOLIB
	help
	  Support for Broadcom's BCMRing platform.

L
Linus Torvalds 已提交
292
config ARCH_CLPS711X
293
	bool "Cirrus Logic CLPS711x/EP721x-based"
294
	select CPU_ARM720T
295
	select ARCH_USES_GETTIMEOFFSET
296 297
	help
	  Support for Cirrus Logic 711x/721x based boards.
L
Linus Torvalds 已提交
298

299 300 301 302 303
config ARCH_CNS3XXX
	bool "Cavium Networks CNS3XXX family"
	select CPU_V6
	select GENERIC_CLOCKEVENTS
	select ARM_GIC
304
	select PCI_DOMAINS if PCI
305 306 307
	help
	  Support for Cavium Networks CNS3XXX platform.

308 309 310 311
config ARCH_GEMINI
	bool "Cortina Systems Gemini"
	select CPU_FA526
	select ARCH_REQUIRE_GPIOLIB
312
	select ARCH_USES_GETTIMEOFFSET
313 314 315
	help
	  Support for the Cortina Systems Gemini family SoCs

L
Linus Torvalds 已提交
316 317
config ARCH_EBSA110
	bool "EBSA-110"
318
	select CPU_SA110
319
	select ISA
320
	select NO_IOPORT
321
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
322 323
	help
	  This is an evaluation board for the StrongARM processor available
324
	  from Digital. It has limited hardware on-board, including an
L
Linus Torvalds 已提交
325 326 327
	  Ethernet interface, two PCMCIA sockets, two serial ports and a
	  parallel port.

328 329
config ARCH_EP93XX
	bool "EP93xx-based"
330
	select CPU_ARM920T
331 332
	select ARM_AMBA
	select ARM_VIC
333
	select COMMON_CLKDEV
M
Michael Buesch 已提交
334
	select ARCH_REQUIRE_GPIOLIB
335
	select ARCH_HAS_HOLES_MEMORYMODEL
336
	select ARCH_USES_GETTIMEOFFSET
337 338 339
	help
	  This enables support for the Cirrus EP93xx series of CPUs.

L
Linus Torvalds 已提交
340 341
config ARCH_FOOTBRIDGE
	bool "FootBridge"
342
	select CPU_SA110
L
Linus Torvalds 已提交
343
	select FOOTBRIDGE
344
	select ARCH_USES_GETTIMEOFFSET
345 346 347
	help
	  Support for systems based on the DC21285 companion chip
	  ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
L
Linus Torvalds 已提交
348

349 350 351 352
config ARCH_MXC
	bool "Freescale MXC/iMX-based"
	select GENERIC_CLOCKEVENTS
	select ARCH_REQUIRE_GPIOLIB
353
	select COMMON_CLKDEV
354 355 356
	help
	  Support for Freescale MXC/iMX-based family of processors

357 358 359 360 361 362 363 364 365 366
config ARCH_STMP3XXX
	bool "Freescale STMP3xxx"
	select CPU_ARM926T
	select COMMON_CLKDEV
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_CLOCKEVENTS
	select USB_ARCH_HAS_EHCI
	help
	  Support for systems based on the Freescale 3xxx CPUs.

367 368
config ARCH_NETX
	bool "Hilscher NetX based"
369
	select CPU_ARM926T
370
	select ARM_VIC
371
	select GENERIC_CLOCKEVENTS
372
	help
373 374 375 376
	  This enables support for systems based on the Hilscher NetX Soc

config ARCH_H720X
	bool "Hynix HMS720x-based"
377
	select CPU_ARM720T
378
	select ISA_DMA_API
379
	select ARCH_USES_GETTIMEOFFSET
380 381 382
	help
	  This enables support for systems based on the Hynix HMS720x

383 384 385
config ARCH_IOP13XX
	bool "IOP13xx-based"
	depends on MMU
386
	select CPU_XSC3
387 388 389
	select PLAT_IOP
	select PCI
	select ARCH_SUPPORTS_MSI
390
	select VMSPLIT_1G
391 392 393
	help
	  Support for Intel's IOP13XX (XScale) family of processors.

394 395
config ARCH_IOP32X
	bool "IOP32x-based"
396
	depends on MMU
397
	select CPU_XSCALE
398
	select PLAT_IOP
399
	select PCI
400
	select ARCH_REQUIRE_GPIOLIB
401
	help
402 403 404 405 406 407
	  Support for Intel's 80219 and IOP32X (XScale) family of
	  processors.

config ARCH_IOP33X
	bool "IOP33x-based"
	depends on MMU
408
	select CPU_XSCALE
409
	select PLAT_IOP
410
	select PCI
411
	select ARCH_REQUIRE_GPIOLIB
412 413
	help
	  Support for Intel's IOP33X (XScale) family of processors.
L
Linus Torvalds 已提交
414

415 416
config ARCH_IXP23XX
 	bool "IXP23XX-based"
417
	depends on MMU
418
	select CPU_XSC3
419
 	select PCI
420
	select ARCH_USES_GETTIMEOFFSET
421
	help
422
	  Support for Intel's IXP23xx (XScale) family of processors.
L
Linus Torvalds 已提交
423 424 425

config ARCH_IXP2000
	bool "IXP2400/2800-based"
426
	depends on MMU
427
	select CPU_XSCALE
428
	select PCI
429
	select ARCH_USES_GETTIMEOFFSET
430 431
	help
	  Support for Intel's IXP2400/2800 (XScale) family of processors.
L
Linus Torvalds 已提交
432

433 434
config ARCH_IXP4XX
	bool "IXP4xx-based"
435
	depends on MMU
436
	select CPU_XSCALE
437
	select GENERIC_GPIO
438
	select GENERIC_CLOCKEVENTS
R
Russell King 已提交
439
	select DMABOUNCE if PCI
440
	help
441
	  Support for Intel's IXP4XX (XScale) family of processors.
442

L
Linus Torvalds 已提交
443 444
config ARCH_L7200
	bool "LinkUp-L7200"
445
	select CPU_ARM720T
L
Linus Torvalds 已提交
446
	select FIQ
447
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
448 449 450 451 452 453 454 455 456 457
	help
	  Say Y here if you intend to run this kernel on a LinkUp Systems
	  L7200 Software Development Board which uses an ARM720T processor.
	  Information on this board can be obtained at:

	  <http://www.linkupsys.com/>

	  If you have any questions or comments about the Linux kernel port
	  to this board, send e-mail to <sjhill@cotw.com>.

458 459 460 461 462 463 464 465 466
config ARCH_DOVE
	bool "Marvell Dove"
	select PCI
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the Marvell Dove SoC 88AP510

467 468
config ARCH_KIRKWOOD
	bool "Marvell Kirkwood"
469
	select CPU_FEROCEON
470
	select PCI
471
	select ARCH_REQUIRE_GPIOLIB
472 473 474 475 476 477
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell Kirkwood series SoCs:
	  88F6180, 88F6192 and 88F6281.

478 479
config ARCH_LOKI
	bool "Marvell Loki (88RC8480)"
480
	select CPU_FEROCEON
481 482 483 484 485
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the Marvell Loki (88RC8480) SoC.

486 487
config ARCH_MV78XX0
	bool "Marvell MV78xx0"
488
	select CPU_FEROCEON
489
	select PCI
490
	select ARCH_REQUIRE_GPIOLIB
491 492 493 494 495 496
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell MV78xx0 series SoCs:
	  MV781x0, MV782x0.

497
config ARCH_ORION5X
498 499
	bool "Marvell Orion"
	depends on MMU
500
	select CPU_FEROCEON
T
Tzachi Perelstein 已提交
501
	select PCI
502
	select ARCH_REQUIRE_GPIOLIB
503
	select GENERIC_CLOCKEVENTS
L
Lennert Buytenhek 已提交
504
	select PLAT_ORION
505
	help
506
	  Support for the following Marvell Orion 5x series SoCs:
507
	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
508
	  Orion-2 (5281), Orion-1-90 (6183).
509

510
config ARCH_MMP
511
	bool "Marvell PXA168/910/MMP2"
512 513 514 515 516 517 518
	depends on MMU
	select ARCH_REQUIRE_GPIOLIB
	select COMMON_CLKDEV
	select GENERIC_CLOCKEVENTS
	select TICK_ONESHOT
	select PLAT_PXA
	help
519
	  Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
520 521 522 523

config ARCH_KS8695
	bool "Micrel/Kendin KS8695"
	select CPU_ARM922T
524
	select ARCH_REQUIRE_GPIOLIB
525
	select ARCH_USES_GETTIMEOFFSET
526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544
	help
	  Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
	  System-on-Chip devices.

config ARCH_NS9XXX
	bool "NetSilicon NS9xxx"
	select CPU_ARM926T
	select GENERIC_GPIO
	select GENERIC_CLOCKEVENTS
	select HAVE_CLK
	help
	  Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
	  System.

	  <http://www.digi.com/products/microprocessors/index.jsp>

config ARCH_W90X900
	bool "Nuvoton W90X900 CPU"
	select CPU_ARM926T
545
	select ARCH_REQUIRE_GPIOLIB
546
	select COMMON_CLKDEV
547
	select GENERIC_CLOCKEVENTS
548
	help
549 550 551 552 553 554 555
	  Support for Nuvoton (Winbond logic dept.) ARM9 processor,
	  At present, the w90x900 has been renamed nuc900, regarding
	  the ARM series product line, you can login the following
	  link address to know more.

	  <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
		ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
556

557 558 559 560 561 562 563 564
config ARCH_NUC93X
	bool "Nuvoton NUC93X CPU"
	select CPU_ARM926T
	select COMMON_CLKDEV
	help
	  Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
	  low-power and high performance MPEG-4/JPEG multimedia controller chip.

565 566
config ARCH_PNX4008
	bool "Philips Nexperia PNX4008 Mobile"
567
	select CPU_ARM926T
R
Russell King 已提交
568
	select COMMON_CLKDEV
569
	select ARCH_USES_GETTIMEOFFSET
570 571 572
	help
	  This enables support for Philips PNX4008 mobile platform.

L
Linus Torvalds 已提交
573
config ARCH_PXA
E
eric miao 已提交
574
	bool "PXA2xx/PXA3xx-based"
575
	depends on MMU
576
	select ARCH_MTD_XIP
577
	select ARCH_HAS_CPUFREQ
578
	select COMMON_CLKDEV
M
Michael Buesch 已提交
579
	select ARCH_REQUIRE_GPIOLIB
580
	select GENERIC_CLOCKEVENTS
581
	select TICK_ONESHOT
582
	select PLAT_PXA
583
	help
E
eric miao 已提交
584
	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
L
Linus Torvalds 已提交
585

586 587
config ARCH_MSM
	bool "Qualcomm MSM"
588
	select HAVE_CLK
589 590
	select GENERIC_CLOCKEVENTS
	help
591 592 593 594 595
	  Support for Qualcomm MSM/QSD based systems.  This runs on the
	  apps processor of the MSM/QSD and depends on a shared memory
	  interface to the modem processor which runs the baseband
	  stack and controls some vital subsystems
	  (clock and power control, etc).
596

597 598 599 600 601
config ARCH_SHMOBILE
	bool "Renesas SH-Mobile"
	help
	  Support for Renesas's SH-Mobile ARM platforms

L
Linus Torvalds 已提交
602 603 604 605 606
config ARCH_RPC
	bool "RiscPC"
	select ARCH_ACORN
	select FIQ
	select TIMER_ACORN
607
	select ARCH_MAY_HAVE_PC_FDC
608
	select HAVE_PATA_PLATFORM
609
	select ISA_DMA_API
A
Al Viro 已提交
610
	select NO_IOPORT
611
	select ARCH_SPARSEMEM_ENABLE
612
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
613 614 615 616 617 618
	help
	  On the Acorn Risc-PC, Linux can support the internal IDE disk and
	  CD-ROM interface, serial and parallel port, and the floppy drive.

config ARCH_SA1100
	bool "SA1100-based"
619
	select CPU_SA1100
620
	select ISA
621
	select ARCH_SPARSEMEM_ENABLE
622
	select ARCH_MTD_XIP
623
	select ARCH_HAS_CPUFREQ
R
Russell King 已提交
624
	select CPU_FREQ
625
	select GENERIC_CLOCKEVENTS
626
	select HAVE_CLK
627
	select TICK_ONESHOT
M
Michael Buesch 已提交
628
	select ARCH_REQUIRE_GPIOLIB
629 630
	help
	  Support for StrongARM 11x0 based boards.
L
Linus Torvalds 已提交
631 632

config ARCH_S3C2410
633
	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
D
David Brownell 已提交
634
	select GENERIC_GPIO
B
Ben Dooks 已提交
635
	select ARCH_HAS_CPUFREQ
636
	select HAVE_CLK
637
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
638 639 640
	help
	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
641
	  the Samsung SMDK2410 development board (and derivatives).
L
Linus Torvalds 已提交
642

643 644 645 646
	  Note, the S3C2416 and the S3C2450 are so close that they even share
	  the same SoC ID code. This means that there is no seperate machine
	  directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.

B
Ben Dooks 已提交
647 648
config ARCH_S3C64XX
	bool "Samsung S3C64XX"
649
	select PLAT_SAMSUNG
650 651
	select CPU_V6
	select ARM_VIC
B
Ben Dooks 已提交
652
	select HAVE_CLK
653
	select NO_IOPORT
654
	select ARCH_USES_GETTIMEOFFSET
655
	select ARCH_HAS_CPUFREQ
656 657 658 659 660 661 662 663 664 665 666
	select ARCH_REQUIRE_GPIOLIB
	select SAMSUNG_CLKSRC
	select SAMSUNG_IRQ_VIC_TIMER
	select SAMSUNG_IRQ_UART
	select S3C_GPIO_TRACK
	select S3C_GPIO_PULL_UPDOWN
	select S3C_GPIO_CFG_S3C24XX
	select S3C_GPIO_CFG_S3C64XX
	select S3C_DEV_NAND
	select USB_ARCH_HAS_OHCI
	select SAMSUNG_GPIOLIB_4BIT
B
Ben Dooks 已提交
667 668 669
	help
	  Samsung S3C64XX series based systems

670 671 672 673 674
config ARCH_S5P6440
	bool "Samsung S5P6440"
	select CPU_V6
	select GENERIC_GPIO
	select HAVE_CLK
675
	select ARCH_USES_GETTIMEOFFSET
676 677 678
	help
	  Samsung S5P6440 CPU based systems

679 680 681 682 683
config ARCH_S5P6442
	bool "Samsung S5P6442"
	select CPU_V6
	select GENERIC_GPIO
	select HAVE_CLK
684
	select ARCH_USES_GETTIMEOFFSET
685 686 687
	help
	  Samsung S5P6442 CPU based systems

688 689
config ARCH_S5PC100
	bool "Samsung S5PC100"
690 691 692
	select GENERIC_GPIO
	select HAVE_CLK
	select CPU_V7
693
	select ARM_L1_CACHE_SHIFT_6
694
	select ARCH_USES_GETTIMEOFFSET
695
	help
696
	  Samsung S5PC100 series based systems
697

698 699 700 701 702 703
config ARCH_S5PV210
	bool "Samsung S5PV210/S5PC110"
	select CPU_V7
	select GENERIC_GPIO
	select HAVE_CLK
	select ARM_L1_CACHE_SHIFT_6
704
	select ARCH_USES_GETTIMEOFFSET
705 706 707
	help
	  Samsung S5PV210/S5PC110 series based systems

L
Linus Torvalds 已提交
708 709
config ARCH_SHARK
	bool "Shark"
710
	select CPU_SA110
711 712
	select ISA
	select ISA_DMA
713
	select ZONE_DMA
714
	select PCI
715
	select ARCH_USES_GETTIMEOFFSET
716 717 718
	help
	  Support for the StrongARM based Digital DNARD machine, also known
	  as "Shark" (<http://www.shark-linux.de/shark.html>).
L
Linus Torvalds 已提交
719 720 721

config ARCH_LH7A40X
	bool "Sharp LH7A40X"
722
	select CPU_ARM922T
723 724
	select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
725
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
726 727 728 729 730 731
	help
	  Say Y here for systems based on one of the Sharp LH7A40X
	  System on a Chip processors.  These CPUs include an ARM922T
	  core with a wide array of integrated devices for
	  hand-held and low-power applications.

732 733 734 735
config ARCH_U300
	bool "ST-Ericsson U300 Series"
	depends on MMU
	select CPU_ARM926T
736
	select HAVE_TCM
737 738 739 740 741 742 743 744
	select ARM_AMBA
	select ARM_VIC
	select GENERIC_CLOCKEVENTS
	select COMMON_CLKDEV
	select GENERIC_GPIO
	help
	  Support for ST-Ericsson U300 series mobile platforms.

745 746 747 748 749 750
config ARCH_U8500
	bool "ST-Ericsson U8500 Series"
	select CPU_V7
	select ARM_AMBA
	select GENERIC_CLOCKEVENTS
	select COMMON_CLKDEV
751
	select ARCH_REQUIRE_GPIOLIB
752 753 754 755 756 757 758 759 760 761 762 763 764 765
	help
	  Support for ST-Ericsson's Ux500 architecture

config ARCH_NOMADIK
	bool "STMicroelectronics Nomadik"
	select ARM_AMBA
	select ARM_VIC
	select CPU_ARM926T
	select COMMON_CLKDEV
	select GENERIC_CLOCKEVENTS
	select ARCH_REQUIRE_GPIOLIB
	help
	  Support for the Nomadik platform by ST-Ericsson

766 767 768
config ARCH_DAVINCI
	bool "TI DaVinci"
	select GENERIC_CLOCKEVENTS
769
	select ARCH_REQUIRE_GPIOLIB
770
	select ZONE_DMA
771
	select HAVE_IDE
772
	select COMMON_CLKDEV
D
David Brownell 已提交
773
	select GENERIC_ALLOCATOR
774
	select ARCH_HAS_HOLES_MEMORYMODEL
775 776 777
	help
	  Support for TI's DaVinci platform.

778 779
config ARCH_OMAP
	bool "TI OMAP"
780
	select HAVE_CLK
M
Michael Buesch 已提交
781
	select ARCH_REQUIRE_GPIOLIB
782
	select ARCH_HAS_CPUFREQ
783
	select GENERIC_CLOCKEVENTS
784
	select ARCH_HAS_HOLES_MEMORYMODEL
785 786 787
	help
	  Support for TI's OMAP platform (OMAP1 and OMAP2).

788 789 790 791 792 793 794 795 796 797
config PLAT_SPEAR
	bool "ST SPEAr"
	select ARM_AMBA
	select ARCH_REQUIRE_GPIOLIB
	select COMMON_CLKDEV
	select GENERIC_CLOCKEVENTS
	select HAVE_CLK
	help
	  Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).

L
Linus Torvalds 已提交
798 799
endchoice

800 801 802 803 804
#
# This is sorted alphabetically by mach-* pathname.  However, plat-*
# Kconfigs may be included either alphabetically (according to the
# plat- suffix) or along side the corresponding mach-* source.
#
805 806 807 808 809 810
source "arch/arm/mach-aaec2000/Kconfig"

source "arch/arm/mach-at91/Kconfig"

source "arch/arm/mach-bcmring/Kconfig"

L
Linus Torvalds 已提交
811 812
source "arch/arm/mach-clps711x/Kconfig"

813 814
source "arch/arm/mach-cns3xxx/Kconfig"

815 816 817 818
source "arch/arm/mach-davinci/Kconfig"

source "arch/arm/mach-dove/Kconfig"

819 820
source "arch/arm/mach-ep93xx/Kconfig"

L
Linus Torvalds 已提交
821 822
source "arch/arm/mach-footbridge/Kconfig"

823 824
source "arch/arm/mach-gemini/Kconfig"

825 826
source "arch/arm/mach-h720x/Kconfig"

L
Linus Torvalds 已提交
827 828
source "arch/arm/mach-integrator/Kconfig"

829 830 831
source "arch/arm/mach-iop32x/Kconfig"

source "arch/arm/mach-iop33x/Kconfig"
L
Linus Torvalds 已提交
832

833 834
source "arch/arm/mach-iop13xx/Kconfig"

L
Linus Torvalds 已提交
835 836 837 838
source "arch/arm/mach-ixp4xx/Kconfig"

source "arch/arm/mach-ixp2000/Kconfig"

839 840
source "arch/arm/mach-ixp23xx/Kconfig"

841 842 843 844 845 846
source "arch/arm/mach-kirkwood/Kconfig"

source "arch/arm/mach-ks8695/Kconfig"

source "arch/arm/mach-lh7a40x/Kconfig"

847 848
source "arch/arm/mach-loki/Kconfig"

849 850
source "arch/arm/mach-msm/Kconfig"

851 852
source "arch/arm/mach-mv78xx0/Kconfig"

853
source "arch/arm/plat-mxc/Kconfig"
L
Linus Torvalds 已提交
854

855
source "arch/arm/mach-netx/Kconfig"
856

857 858 859 860
source "arch/arm/mach-nomadik/Kconfig"
source "arch/arm/plat-nomadik/Kconfig"

source "arch/arm/mach-ns9xxx/Kconfig"
L
Linus Torvalds 已提交
861

R
Russell King 已提交
862
source "arch/arm/mach-nuc93x/Kconfig"
L
Linus Torvalds 已提交
863

864 865 866
source "arch/arm/plat-omap/Kconfig"

source "arch/arm/mach-omap1/Kconfig"
L
Linus Torvalds 已提交
867

868 869
source "arch/arm/mach-omap2/Kconfig"

870
source "arch/arm/mach-orion5x/Kconfig"
871

872 873
source "arch/arm/mach-pxa/Kconfig"
source "arch/arm/plat-pxa/Kconfig"
874

875 876 877 878 879
source "arch/arm/mach-mmp/Kconfig"

source "arch/arm/mach-realview/Kconfig"

source "arch/arm/mach-sa1100/Kconfig"
880

881
source "arch/arm/plat-samsung/Kconfig"
882
source "arch/arm/plat-s3c24xx/Kconfig"
883
source "arch/arm/plat-s5p/Kconfig"
884

885
source "arch/arm/plat-spear/Kconfig"
886 887 888

if ARCH_S3C2410
source "arch/arm/mach-s3c2400/Kconfig"
L
Linus Torvalds 已提交
889
source "arch/arm/mach-s3c2410/Kconfig"
890
source "arch/arm/mach-s3c2412/Kconfig"
Y
Yauhen Kharuzhy 已提交
891
source "arch/arm/mach-s3c2416/Kconfig"
892
source "arch/arm/mach-s3c2440/Kconfig"
893
source "arch/arm/mach-s3c2443/Kconfig"
894
endif
L
Linus Torvalds 已提交
895

B
Ben Dooks 已提交
896
if ARCH_S3C64XX
897
source "arch/arm/mach-s3c64xx/Kconfig"
B
Ben Dooks 已提交
898 899
endif

900 901
source "arch/arm/mach-s5p6440/Kconfig"

902
source "arch/arm/mach-s5p6442/Kconfig"
903

904 905
source "arch/arm/mach-s5pc100/Kconfig"

906 907
source "arch/arm/mach-s5pv210/Kconfig"

908
source "arch/arm/mach-shmobile/Kconfig"
909

910
source "arch/arm/plat-stmp3xxx/Kconfig"
911

912
source "arch/arm/mach-u300/Kconfig"
L
Linus Torvalds 已提交
913

914
source "arch/arm/mach-ux500/Kconfig"
L
Linus Torvalds 已提交
915 916 917

source "arch/arm/mach-versatile/Kconfig"

918 919
source "arch/arm/mach-vexpress/Kconfig"

920 921
source "arch/arm/mach-w90x900/Kconfig"

L
Linus Torvalds 已提交
922 923 924 925
# Definitions to make life easier
config ARCH_ACORN
	bool

926 927
config PLAT_IOP
	bool
M
Mikael Pettersson 已提交
928
	select GENERIC_CLOCKEVENTS
929

L
Lennert Buytenhek 已提交
930 931 932
config PLAT_ORION
	bool

933 934 935
config PLAT_PXA
	bool

936 937 938
config PLAT_VERSATILE
	bool

939 940 941
config ARM_TIMER_SP804
	bool

L
Linus Torvalds 已提交
942 943
source arch/arm/mm/Kconfig

944 945
config IWMMXT
	bool "Enable iWMMXt support"
946 947
	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
	default y if PXA27x || PXA3xx || ARCH_MMP
948 949 950 951
	help
	  Enable support for iWMMXt context switching at run time if
	  running on a CPU that supports it.

L
Linus Torvalds 已提交
952 953 954 955 956 957
#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
config XSCALE_PMU
	bool
	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
	default y

958 959 960 961 962
config CPU_HAS_PMU
	depends on CPU_V6 || CPU_V7 || XSCALE_PMU
	default y
	bool

963 964 965 966
if !MMU
source "arch/arm/Kconfig-nommu"
endif

967 968 969 970 971 972 973 974 975
config ARM_ERRATA_411920
	bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
	depends on CPU_V6 && !SMP
	help
	  Invalidation of the Instruction Cache operation can
	  fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
	  It does not affect the MPCore. This option enables the ARM Ltd.
	  recommended workaround.

976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991
config ARM_ERRATA_430973
	bool "ARM errata: Stale prediction on replaced interworking branch"
	depends on CPU_V7
	help
	  This option enables the workaround for the 430973 Cortex-A8
	  (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
	  interworking branch is replaced with another code sequence at the
	  same virtual address, whether due to self-modifying code or virtual
	  to physical address re-mapping, Cortex-A8 does not recover from the
	  stale interworking branch prediction. This results in Cortex-A8
	  executing the new code sequence in the incorrect ARM or Thumb state.
	  The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
	  and also flushes the branch target cache at every context switch.
	  Note that setting specific bits in the ACTLR register may not be
	  available in non-secure mode.

992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004
config ARM_ERRATA_458693
	bool "ARM errata: Processor deadlock when a false hazard is created"
	depends on CPU_V7
	help
	  This option enables the workaround for the 458693 Cortex-A8 (r2p0)
	  erratum. For very specific sequences of memory operations, it is
	  possible for a hazard condition intended for a cache line to instead
	  be incorrectly associated with a different cache line. This false
	  hazard might then cause a processor deadlock. The workaround enables
	  the L1 caching of the NEON accesses and disables the PLD instruction
	  in the ACTLR register. Note that setting specific bits in the ACTLR
	  register may not be available in non-secure mode.

1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016
config ARM_ERRATA_460075
	bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
	depends on CPU_V7
	help
	  This option enables the workaround for the 460075 Cortex-A8 (r2p0)
	  erratum. Any asynchronous access to the L2 cache may encounter a
	  situation in which recent store transactions to the L2 cache are lost
	  and overwritten with stale memory contents from external memory. The
	  workaround disables the write-allocate mode for the L2 cache via the
	  ACTLR register. Note that setting specific bits in the ACTLR register
	  may not be available in non-secure mode.

1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029
config PL310_ERRATA_588369
	bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
	depends on CACHE_L2X0 && ARCH_OMAP4
	help
	   The PL310 L2 cache controller implements three types of Clean &
	   Invalidate maintenance operations: by Physical Address
	   (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
	   They are architecturally defined to behave as the execution of a
	   clean operation followed immediately by an invalidate operation,
	   both performing to the same memory location. This functionality
	   is not correctly implemented in PL310 as clean lines are not
	   invalidated as a result of these operations. Note that this errata
	   uses Texas Instrument's secure monitor api.
L
Linus Torvalds 已提交
1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052
endmenu

source "arch/arm/common/Kconfig"

config FORCE_MAX_ZONEORDER
	int
	depends on SA1111
	default "9"

menu "Bus support"

config ARM_AMBA
	bool

config ISA
	bool
	help
	  Find out whether you have ISA slots on your motherboard.  ISA is the
	  name of a bus system, i.e. the way the CPU talks to the other stuff
	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
	  newer boards don't support it.  If you have ISA, say Y, otherwise N.

1053
# Select ISA DMA controller support
L
Linus Torvalds 已提交
1054 1055
config ISA_DMA
	bool
1056
	select ISA_DMA_API
L
Linus Torvalds 已提交
1057

1058
# Select ISA DMA interface
A
Al Viro 已提交
1059 1060 1061
config ISA_DMA_API
	bool

L
Linus Torvalds 已提交
1062
config PCI
1063
	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE || ARCH_CNS3XXX
L
Linus Torvalds 已提交
1064 1065 1066 1067 1068 1069
	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. Other bus systems are ISA, EISA, MicroChannel (MCA) or
	  VESA. If you have PCI, say Y, otherwise N.

1070 1071 1072 1073
config PCI_DOMAINS
	bool
	depends on PCI

1074 1075 1076
config PCI_SYSCALL
	def_bool PCI

L
Linus Torvalds 已提交
1077 1078 1079 1080 1081 1082
# Select the host bridge type
config PCI_HOST_VIA82C505
	bool
	depends on PCI && ARCH_SHARK
	default y

M
Mike Rapoport 已提交
1083 1084 1085 1086 1087 1088
config PCI_HOST_ITE8152
	bool
	depends on PCI && MACH_ARMCORE
	default y
	select DMABOUNCE

L
Linus Torvalds 已提交
1089 1090 1091 1092 1093 1094 1095 1096
source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

endmenu

menu "Kernel Features"

1097 1098
source "kernel/time/Kconfig"

L
Linus Torvalds 已提交
1099 1100
config SMP
	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
1101
	depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
1102 1103
		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
		 ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
1104
	depends on GENERIC_CLOCKEVENTS
1105
	select USE_GENERIC_SMP_HELPERS
1106
	select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
L
Linus Torvalds 已提交
1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117
	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, single
	  processor machines. On a single processor machine, the kernel will
	  run faster if you say N here.

A
Adrian Bunk 已提交
1118
	  See also <file:Documentation/i386/IO-APIC.txt>,
L
Linus Torvalds 已提交
1119 1120 1121 1122 1123
	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
	  <http://www.linuxdoc.org/docs.html#howto>.

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

1124 1125 1126 1127 1128 1129
config HAVE_ARM_SCU
	bool
	depends on SMP
	help
	  This option enables support for the ARM system coherency unit

1130 1131 1132 1133 1134 1135
config HAVE_ARM_TWD
	bool
	depends on SMP
	help
	  This options enables support for the ARM timer and watchdog unit

1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158
choice
	prompt "Memory split"
	default VMSPLIT_3G
	help
	  Select the desired split between kernel and user memory.

	  If you are not absolutely sure what you are doing, leave this
	  option alone!

	config VMSPLIT_3G
		bool "3G/1G user/kernel split"
	config VMSPLIT_2G
		bool "2G/2G user/kernel split"
	config VMSPLIT_1G
		bool "1G/3G user/kernel split"
endchoice

config PAGE_OFFSET
	hex
	default 0x40000000 if VMSPLIT_1G
	default 0x80000000 if VMSPLIT_2G
	default 0xC0000000

L
Linus Torvalds 已提交
1159 1160 1161 1162 1163 1164
config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
	default "4"

1165 1166 1167 1168 1169 1170 1171
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.

1172 1173
config LOCAL_TIMERS
	bool "Use local timer interrupts"
1174
	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1175
		REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
1176
	default y
1177
	select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
1178 1179 1180 1181 1182 1183
	help
	  Enable support for local timers on SMP platforms, rather then the
	  legacy IPI broadcast method.  Local timers allows the system
	  accounting to be spread across the timer interval, preventing a
	  "thundering herd" at every timer tick.

1184
source kernel/Kconfig.preempt
L
Linus Torvalds 已提交
1185

1186 1187 1188
config HZ
	int
	default 128 if ARCH_L7200
1189
	default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
1190
	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
1191
	default AT91_TIMER_HZ if ARCH_AT91
1192 1193
	default 100

1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205
config THUMB2_KERNEL
	bool "Compile the kernel in Thumb-2 mode"
	depends on CPU_V7 && EXPERIMENTAL
	select AEABI
	select ARM_ASM_UNIFIED
	help
	  By enabling this option, the kernel will be compiled in
	  Thumb-2 mode. A compiler/assembler that understand the unified
	  ARM-Thumb syntax is needed.

	  If unsure, say N.

1206 1207 1208
config ARM_ASM_UNIFIED
	bool

1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223
config AEABI
	bool "Use the ARM EABI to compile the kernel"
	help
	  This option allows for the kernel to be compiled using the latest
	  ARM ABI (aka EABI).  This is only useful if you are using a user
	  space environment that is also compiled with EABI.

	  Since there are major incompatibilities between the legacy ABI and
	  EABI, especially with regard to structure member alignment, this
	  option also changes the kernel syscall calling convention to
	  disambiguate both ABIs and allow for backward compatibility support
	  (selected with CONFIG_OABI_COMPAT).

	  To use this you need GCC version 4.0.0 or later.

1224
config OABI_COMPAT
1225
	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
1226
	depends on AEABI && EXPERIMENTAL
1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240
	default y
	help
	  This option preserves the old syscall interface along with the
	  new (ARM EABI) one. It also provides a compatibility layer to
	  intercept syscalls that have structure arguments which layout
	  in memory differs between the legacy ABI and the new ARM EABI
	  (only for non "thumb" binaries). This option adds a tiny
	  overhead to all syscalls and produces a slightly larger kernel.
	  If you know you'll be using only pure EABI user space then you
	  can say N here. If this option is not selected and you attempt
	  to execute a legacy ABI binary then the result will be
	  UNPREDICTABLE (in fact it can be predicted that it won't work
	  at all). If in doubt say Y.

1241
config ARCH_HAS_HOLES_MEMORYMODEL
1242 1243
	bool

1244
# Discontigmem is deprecated
1245
config ARCH_DISCONTIGMEM_ENABLE
L
Linus Torvalds 已提交
1246 1247
	bool

1248 1249 1250
config ARCH_SPARSEMEM_ENABLE
	bool

1251 1252 1253
config ARCH_SPARSEMEM_DEFAULT
	def_bool ARCH_SPARSEMEM_ENABLE

1254
config ARCH_SELECT_MEMORY_MODEL
1255
	def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
1256

Y
Yasunori Goto 已提交
1257 1258 1259 1260 1261 1262
config NODES_SHIFT
	int
	default "4" if ARCH_LH7A40X
	default "2"
	depends on NEED_MULTIPLE_NODES

N
Nicolas Pitre 已提交
1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279
config HIGHMEM
	bool "High Memory Support (EXPERIMENTAL)"
	depends on MMU && EXPERIMENTAL
	help
	  The address space of ARM processors is only 4 Gigabytes large
	  and it has to accommodate user address space, kernel address
	  space as well as some memory mapped IO. That means that, if you
	  have a large amount of physical memory and/or IO, not all of the
	  memory can be "permanently mapped" by the kernel. The physical
	  memory that is not permanently mapped is called "high memory".

	  Depending on the selected kernel/user memory split, minimum
	  vmalloc space and actual amount of RAM, you may not need this
	  option which should result in a slightly faster kernel.

	  If unsure, say n.

R
Russell King 已提交
1280 1281 1282 1283 1284
config HIGHPTE
	bool "Allocate 2nd-level pagetables from highmem"
	depends on HIGHMEM
	depends on !OUTER_CACHE

1285 1286
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
1287
	depends on PERF_EVENTS && CPU_HAS_PMU
1288 1289 1290 1291 1292
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

1293 1294
source "mm/Kconfig"

L
Linus Torvalds 已提交
1295 1296
config LEDS
	bool "Timer and CPU usage LEDs"
1297
	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
1298
		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
L
Linus Torvalds 已提交
1299 1300
		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
1301
		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
1302
		   ARCH_AT91 || ARCH_DAVINCI || \
1303
		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
L
Linus Torvalds 已提交
1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316
	help
	  If you say Y here, the LEDs on your machine will be used
	  to provide useful information about your current system status.

	  If you are compiling a kernel for a NetWinder or EBSA-285, you will
	  be able to select which LEDs are active using the options below. If
	  you are compiling a kernel for the EBSA-110 or the LART however, the
	  red LED will simply flash regularly to indicate that the system is
	  still functional. It is safe to say Y here if you have a CATS
	  system, but the driver will do nothing.

config LEDS_TIMER
	bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
D
David Brownell 已提交
1317 1318
			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			    || MACH_OMAP_PERSEUS2
L
Linus Torvalds 已提交
1319
	depends on LEDS
1320
	depends on !GENERIC_CLOCKEVENTS
L
Linus Torvalds 已提交
1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334
	default y if ARCH_EBSA110
	help
	  If you say Y here, one of the system LEDs (the green one on the
	  NetWinder, the amber one on the EBSA285, or the red one on the LART)
	  will flash regularly to indicate that the system is still
	  operational. This is mainly useful to kernel hackers who are
	  debugging unstable kernels.

	  The LART uses the same LED for both Timer LED and CPU usage LED
	  functions. You may choose to use both, but the Timer LED function
	  will overrule the CPU usage LED.

config LEDS_CPU
	bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
D
David Brownell 已提交
1335 1336 1337
			!ARCH_OMAP) \
			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			|| MACH_OMAP_PERSEUS2
L
Linus Torvalds 已提交
1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349
	depends on LEDS
	help
	  If you say Y here, the red LED will be used to give a good real
	  time indication of CPU usage, by lighting whenever the idle task
	  is not currently executing.

	  The LART uses the same LED for both Timer LED and CPU usage LED
	  functions. You may choose to use both, but the Timer LED function
	  will overrule the CPU usage LED.

config ALIGNMENT_TRAP
	bool
1350
	depends on CPU_CP15_MMU
L
Linus Torvalds 已提交
1351
	default y if !ARCH_EBSA110
1352
	select HAVE_PROC_CPU if PROC_FS
L
Linus Torvalds 已提交
1353
	help
1354
	  ARM processors cannot fetch/store information which is not
L
Linus Torvalds 已提交
1355 1356 1357 1358 1359 1360 1361
	  naturally aligned on the bus, i.e., a 4 byte fetch must start at an
	  address divisible by 4. On 32-bit ARM processors, these non-aligned
	  fetch/store instructions will be emulated in software if you say
	  here, which has a severe performance impact. This is necessary for
	  correct operation of some network protocols. With an IP-only
	  configuration it is safe to say N, otherwise say Y.

1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377
config UACCESS_WITH_MEMCPY
	bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
	depends on MMU && EXPERIMENTAL
	default y if CPU_FEROCEON
	help
	  Implement faster copy_to_user and clear_user methods for CPU
	  cores where a 8-word STM instruction give significantly higher
	  memory write throughput than a sequence of individual 32bit stores.

	  A possible side effect is a slight increase in scheduling latency
	  between threads sharing the same address space if they invoke
	  such copy operations with large buffers.

	  However, if the CPU data cache is using a write-allocate mode,
	  this option is unlikely to provide any performance gain.

L
Linus Torvalds 已提交
1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398
endmenu

menu "Boot options"

# Compressed boot loader in ROM.  Yes, we really want to ask about
# TEXT and BSS so we preserve their values in the config files.
config ZBOOT_ROM_TEXT
	hex "Compressed ROM boot loader base address"
	default "0"
	help
	  The physical address at which the ROM-able zImage is to be
	  placed in the target.  Platforms which normally make use of
	  ROM-able zImage formats normally set this to a suitable
	  value in their defconfig file.

	  If ZBOOT_ROM is not enabled, this has no effect.

config ZBOOT_ROM_BSS
	hex "Compressed ROM boot loader BSS address"
	default "0"
	help
1399 1400 1401 1402 1403 1404
	  The base address of an area of read/write memory in the target
	  for the ROM-able zImage which must be available while the
	  decompressor is running. It must be large enough to hold the
	  entire decompressed kernel plus an additional 128 KiB.
	  Platforms which normally make use of ROM-able zImage formats
	  normally set this to a suitable value in their defconfig file.
L
Linus Torvalds 已提交
1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424

	  If ZBOOT_ROM is not enabled, this has no effect.

config ZBOOT_ROM
	bool "Compressed boot loader in ROM/flash"
	depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
	help
	  Say Y here if you intend to execute your compressed kernel image
	  (zImage) directly from ROM or flash.  If unsure, say N.

config CMDLINE
	string "Default kernel command string"
	default ""
	help
	  On some architectures (EBSA110 and CATS), there is currently no way
	  for the boot loader to pass arguments to the kernel. For these
	  architectures, you should supply some command-line options at build
	  time by entering them here. As a minimum, you should specify the
	  memory size and the root device (e.g., mem=64M root=/dev/nfs).

1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435
config CMDLINE_FORCE
	bool "Always use the default kernel command string"
	depends on CMDLINE != ""
	help
	  Always use the default kernel command string, even if the boot
	  loader passes other arguments to the kernel.
	  This is useful if you cannot or don't want to change the
	  command-line options your boot loader passes to the kernel.

	  If unsure, say N.

L
Linus Torvalds 已提交
1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465
config XIP_KERNEL
	bool "Kernel Execute-In-Place from ROM"
	depends on !ZBOOT_ROM
	help
	  Execute-In-Place allows the kernel to run from non-volatile storage
	  directly addressable by the CPU, such as NOR flash. This saves RAM
	  space since the text section of the kernel is not loaded from flash
	  to RAM.  Read-write sections, such as the data section and stack,
	  are still copied to RAM.  The XIP kernel is not compressed since
	  it has to run directly from flash, so it will take more space to
	  store it.  The flash address used to link the kernel object files,
	  and for storing it, is configuration dependent. Therefore, if you
	  say Y here, you must know the proper physical address where to
	  store the kernel image depending on your own flash memory usage.

	  Also note that the make target becomes "make xipImage" rather than
	  "make zImage" or "make Image".  The final kernel binary to put in
	  ROM memory will be arch/arm/boot/xipImage.

	  If unsure, say N.

config XIP_PHYS_ADDR
	hex "XIP Kernel Physical Location"
	depends on XIP_KERNEL
	default "0x00080000"
	help
	  This is the physical address in your flash memory the kernel will
	  be linked for and stored to.  This address is dependent on your
	  own flash usage.

R
Richard Purdie 已提交
1466 1467 1468 1469 1470 1471
config KEXEC
	bool "Kexec system call (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	help
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
M
Matt LaPlante 已提交
1472
	  but it is independent of the system firmware.   And like a reboot
R
Richard Purdie 已提交
1473 1474 1475 1476 1477 1478 1479
	  you can start any kernel with it, not just Linux.

	  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.

1480 1481
config ATAGS_PROC
	bool "Export atags in procfs"
1482 1483
	depends on KEXEC
	default y
1484 1485 1486 1487
	help
	  Should the atags used to boot the kernel be exported in an "atags"
	  file in procfs. Useful with kexec.

L
Linus Torvalds 已提交
1488 1489
endmenu

1490
menu "CPU Power Management"
L
Linus Torvalds 已提交
1491

1492
if ARCH_HAS_CPUFREQ
L
Linus Torvalds 已提交
1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512

source "drivers/cpufreq/Kconfig"

config CPU_FREQ_SA1100
	bool

config CPU_FREQ_SA1110
	bool

config CPU_FREQ_INTEGRATOR
	tristate "CPUfreq driver for ARM Integrator CPUs"
	depends on ARCH_INTEGRATOR && CPU_FREQ
	default y
	help
	  This enables the CPUfreq driver for ARM Integrator CPUs.

	  For details, take a look at <file:Documentation/cpu-freq>.

	  If in doubt, say Y.

R
Russell King 已提交
1513 1514 1515 1516 1517 1518
config CPU_FREQ_PXA
	bool
	depends on CPU_FREQ && ARCH_PXA && PXA25x
	default y
	select CPU_FREQ_DEFAULT_GOV_USERSPACE

1519 1520 1521 1522
config CPU_FREQ_S3C64XX
	bool "CPUfreq support for Samsung S3C64XX CPUs"
	depends on CPU_FREQ && CPU_S3C6410

B
Ben Dooks 已提交
1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562
config CPU_FREQ_S3C
	bool
	help
	  Internal configuration node for common cpufreq on Samsung SoC

config CPU_FREQ_S3C24XX
	bool "CPUfreq driver for Samsung S3C24XX series CPUs"
	depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
	select CPU_FREQ_S3C
	help
	  This enables the CPUfreq driver for the Samsung S3C24XX family
	  of CPUs.

	  For details, take a look at <file:Documentation/cpu-freq>.

	  If in doubt, say N.

config CPU_FREQ_S3C24XX_PLL
	bool "Support CPUfreq changing of PLL frequency"
	depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
	help
	  Compile in support for changing the PLL frequency from the
	  S3C24XX series CPUfreq driver. The PLL takes time to settle
	  after a frequency change, so by default it is not enabled.

	  This also means that the PLL tables for the selected CPU(s) will
	  be built which may increase the size of the kernel image.

config CPU_FREQ_S3C24XX_DEBUG
	bool "Debug CPUfreq Samsung driver core"
	depends on CPU_FREQ_S3C24XX
	help
	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core

config CPU_FREQ_S3C24XX_IODEBUG
	bool "Debug CPUfreq Samsung driver IO timing"
	depends on CPU_FREQ_S3C24XX
	help
	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core

1563 1564 1565 1566 1567 1568
config CPU_FREQ_S3C24XX_DEBUGFS
	bool "Export debugfs for CPUFreq"
	depends on CPU_FREQ_S3C24XX && DEBUG_FS
	help
	  Export status information via debugfs.

L
Linus Torvalds 已提交
1569 1570
endif

1571 1572 1573 1574
source "drivers/cpuidle/Kconfig"

endmenu

L
Linus Torvalds 已提交
1575 1576 1577 1578 1579 1580
menu "Floating point emulation"

comment "At least one emulation must be selected"

config FPE_NWFPE
	bool "NWFPE math emulation"
1581
	depends on !AEABI || OABI_COMPAT
L
Linus Torvalds 已提交
1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592
	---help---
	  Say Y to include the NWFPE floating point emulator in the kernel.
	  This is necessary to run most binaries. Linux does not currently
	  support floating point hardware so you need to say Y here even if
	  your machine has an FPA or floating point co-processor podule.

	  You may say N here if you are going to load the Acorn FPEmulator
	  early in the bootup.

config FPE_NWFPE_XP
	bool "Support extended precision"
1593
	depends on FPE_NWFPE
L
Linus Torvalds 已提交
1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604
	help
	  Say Y to include 80-bit support in the kernel floating-point
	  emulator.  Otherwise, only 32 and 64-bit support is compiled in.
	  Note that gcc does not generate 80-bit operations by default,
	  so in most cases this option only enlarges the size of the
	  floating point emulator without any good reason.

	  You almost surely want to say N here.

config FPE_FASTFPE
	bool "FastFPE math emulation (EXPERIMENTAL)"
1605
	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
L
Linus Torvalds 已提交
1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618
	---help---
	  Say Y here to include the FAST floating point emulator in the kernel.
	  This is an experimental much faster emulator which now also has full
	  precision for the mantissa.  It does not support any exceptions.
	  It is very simple, and approximately 3-6 times faster than NWFPE.

	  It should be sufficient for most programs.  It may be not suitable
	  for scientific calculations, but you have to check this for yourself.
	  If you do not feel you need a faster FP emulation you should better
	  choose NWFPE.

config VFP
	bool "VFP-format floating point maths"
R
Russell King 已提交
1619
	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
L
Linus Torvalds 已提交
1620 1621 1622 1623 1624 1625 1626 1627 1628
	help
	  Say Y to include VFP support code in the kernel. This is needed
	  if your hardware includes a VFP unit.

	  Please see <file:Documentation/arm/VFP/release-notes.txt> for
	  release notes and additional status information.

	  Say N if your target does not have VFP hardware.

1629 1630 1631 1632 1633
config VFPv3
	bool
	depends on VFP
	default y if CPU_V7

1634 1635 1636 1637 1638 1639 1640
config NEON
	bool "Advanced SIMD (NEON) Extension support"
	depends on VFPv3 && CPU_V7
	help
	  Say Y to include support code for NEON, the ARMv7 Advanced SIMD
	  Extension.

L
Linus Torvalds 已提交
1641 1642 1643 1644 1645 1646 1647 1648
endmenu

menu "Userspace binary formats"

source "fs/Kconfig.binfmt"

config ARTHUR
	tristate "RISC OS personality"
1649
	depends on !AEABI
L
Linus Torvalds 已提交
1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660
	help
	  Say Y here to include the kernel code necessary if you want to run
	  Acorn RISC OS/Arthur binaries under Linux. This code is still very
	  experimental; if this sounds frightening, say N and sleep in peace.
	  You can also say M here to compile this support as a module (which
	  will be called arthur).

endmenu

menu "Power management options"

R
Russell King 已提交
1661
source "kernel/power/Kconfig"
L
Linus Torvalds 已提交
1662

J
Johannes Berg 已提交
1663 1664 1665
config ARCH_SUSPEND_POSSIBLE
	def_bool y

L
Linus Torvalds 已提交
1666 1667
endmenu

1668 1669
source "net/Kconfig"

1670
source "drivers/Kconfig"
L
Linus Torvalds 已提交
1671 1672 1673 1674 1675 1676 1677 1678 1679 1680

source "fs/Kconfig"

source "arch/arm/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"