Kconfig 43.3 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)
M
Mathieu Desnoyers 已提交
16
	select HAVE_OPROFILE
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 25
	select HAVE_PERF_EVENTS
	select PERF_USE_VMALLOC
L
Linus Torvalds 已提交
26 27
	help
	  The ARM series is a line of low-power-consumption RISC chip designs
28
	  licensed by ARM Ltd and targeted at embedded applications and
L
Linus Torvalds 已提交
29
	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
30
	  manufactured, but legacy ARM-based PC hardware remains popular in
L
Linus Torvalds 已提交
31 32 33
	  Europe.  There is an ARM Linux project with a web page at
	  <http://www.arm.linux.org.uk/>.

R
Russell King 已提交
34 35 36
config HAVE_PWM
	bool

37 38 39
config SYS_SUPPORTS_APM_EMULATION
	bool

D
David Brownell 已提交
40 41 42
config GENERIC_GPIO
	bool

43 44
config GENERIC_TIME
	bool
45 46 47 48 49
	default y

config ARCH_USES_GETTIMEOFFSET
	bool
	default n
50

51 52 53
config GENERIC_CLOCKEVENTS
	bool

54 55 56 57 58
config GENERIC_CLOCKEVENTS_BROADCAST
	bool
	depends on GENERIC_CLOCKEVENTS
	default y if SMP && !LOCAL_TIMERS

59 60 61 62
config HAVE_TCM
	bool
	select GENERIC_ALLOCATOR

63 64 65
config HAVE_PROC_CPU
	bool

A
Al Viro 已提交
66 67 68
config NO_IOPORT
	bool

L
Linus Torvalds 已提交
69 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
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.

95 96 97 98
config GENERIC_HARDIRQS
	bool
	default y

99 100 101 102
config STACKTRACE_SUPPORT
	bool
	default y

N
Nicolas Pitre 已提交
103 104 105 106 107
config HAVE_LATENCYTOP_SUPPORT
	bool
	depends on !SMP
	default y

108 109 110 111
config LOCKDEP_SUPPORT
	bool
	default y

R
Russell King 已提交
112 113 114 115
config TRACE_IRQFLAGS_SUPPORT
	bool
	default y

116 117 118 119 120 121 122 123
config HARDIRQS_SW_RESEND
	bool
	default y

config GENERIC_IRQ_PROBE
	bool
	default y

N
Nick Piggin 已提交
124 125 126 127 128
config GENERIC_LOCKBREAK
	bool
	default y
	depends on SMP && PREEMPT

L
Linus Torvalds 已提交
129 130 131 132 133 134 135
config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

136 137 138 139 140 141
config ARCH_HAS_ILOG2_U32
	bool

config ARCH_HAS_ILOG2_U64
	bool

142 143 144 145 146 147 148
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.

149 150 151 152
config GENERIC_HWEIGHT
	bool
	default y

L
Linus Torvalds 已提交
153 154 155 156
config GENERIC_CALIBRATE_DELAY
	bool
	default y

157 158 159
config ARCH_MAY_HAVE_PC_FDC
	bool

160 161 162
config ZONE_DMA
	bool

163 164 165
config NEED_DMA_MAP_STATE
       def_bool y

L
Linus Torvalds 已提交
166 167 168 169 170 171
config GENERIC_ISA_DMA
	bool

config FIQ
	bool

172 173 174
config ARCH_MTD_XIP
	bool

175 176 177
config GENERIC_HARDIRQS_NO__DO_IRQ
	def_bool y

178 179 180 181 182
config ARM_L1_CACHE_SHIFT_6
	bool
	help
	  Setting ARM L1 cache line size to 64 Bytes.

183 184 185 186 187 188 189 190 191 192 193 194 195 196 197
if OPROFILE

config OPROFILE_ARMV6
	def_bool y
	depends on CPU_V6 && !SMP
	select OPROFILE_ARM11_CORE

config OPROFILE_MPCORE
	def_bool y
	depends on CPU_V6 && SMP
	select OPROFILE_ARM11_CORE

config OPROFILE_ARM11_CORE
	bool

198 199 200 201 202
config OPROFILE_ARMV7
	def_bool y
	depends on CPU_V7 && !SMP
	bool

203 204
endif

205 206
config VECTORS_BASE
	hex
207
	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
208 209 210 211 212
	default DRAM_BASE if REMAP_VECTORS_TO_RAM
	default 0x00000000
	help
	  The base address of exception vectors.

L
Linus Torvalds 已提交
213 214
source "init/Kconfig"

215 216
source "kernel/Kconfig.freezer"

L
Linus Torvalds 已提交
217 218
menu "System Type"

219 220 221 222 223 224 225
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'.

226 227 228 229
#
# 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
230 231
choice
	prompt "ARM system type"
232
	default ARCH_VERSATILE
L
Linus Torvalds 已提交
233

234 235
config ARCH_AAEC2000
	bool "Agilent AAEC-2000 based"
236
	select CPU_ARM920T
237
	select ARM_AMBA
238
	select HAVE_CLK
239
	select ARCH_USES_GETTIMEOFFSET
240 241 242 243 244 245
	help
	  This enables support for systems based on the Agilent AAEC-2000

config ARCH_INTEGRATOR
	bool "ARM Ltd. Integrator family"
	select ARM_AMBA
246
	select ARCH_HAS_CPUFREQ
247
	select COMMON_CLKDEV
248 249 250 251 252 253 254
	select ICST525
	help
	  Support for ARM's Integrator platform.

config ARCH_REALVIEW
	bool "ARM Ltd. RealView family"
	select ARM_AMBA
255
	select COMMON_CLKDEV
256
	select ICST307
257
	select GENERIC_TIME
258
	select GENERIC_CLOCKEVENTS
259
	select ARCH_WANT_OPTIONAL_GPIOLIB
260 261 262 263 264 265 266
	help
	  This enables support for ARM Ltd RealView boards.

config ARCH_VERSATILE
	bool "ARM Ltd. Versatile family"
	select ARM_AMBA
	select ARM_VIC
267
	select COMMON_CLKDEV
268
	select ICST307
269
	select GENERIC_TIME
270
	select GENERIC_CLOCKEVENTS
271
	select ARCH_WANT_OPTIONAL_GPIOLIB
272 273 274
	help
	  This enables support for ARM Ltd Versatile board.

275 276
config ARCH_AT91
	bool "Atmel AT91"
D
David Brownell 已提交
277
	select GENERIC_GPIO
278
	select ARCH_REQUIRE_GPIOLIB
D
David Brownell 已提交
279
	select HAVE_CLK
280
	select ARCH_USES_GETTIMEOFFSET
281
	help
282 283
	  This enables support for systems based on the Atmel AT91RM9200,
	  AT91SAM9 and AT91CAP9 processors.
284

285 286 287 288 289 290 291 292 293 294 295 296
config ARCH_BCMRING
	bool "Broadcom BCMRING"
	depends on MMU
	select CPU_V6
	select ARM_AMBA
	select COMMON_CLKDEV
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select ARCH_WANT_OPTIONAL_GPIOLIB
	help
	  Support for Broadcom's BCMRing platform.

L
Linus Torvalds 已提交
297
config ARCH_CLPS711X
298
	bool "Cirrus Logic CLPS711x/EP721x-based"
299
	select CPU_ARM720T
300
	select ARCH_USES_GETTIMEOFFSET
301 302
	help
	  Support for Cirrus Logic 711x/721x based boards.
L
Linus Torvalds 已提交
303

304 305 306 307 308
config ARCH_GEMINI
	bool "Cortina Systems Gemini"
	select CPU_FA526
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
309
	select ARCH_USES_GETTIMEOFFSET
310 311 312
	help
	  Support for the Cortina Systems Gemini family SoCs

L
Linus Torvalds 已提交
313 314
config ARCH_EBSA110
	bool "EBSA-110"
315
	select CPU_SA110
316
	select ISA
317
	select NO_IOPORT
318
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
319 320
	help
	  This is an evaluation board for the StrongARM processor available
321
	  from Digital. It has limited hardware on-board, including an
L
Linus Torvalds 已提交
322 323 324
	  Ethernet interface, two PCMCIA sockets, two serial ports and a
	  parallel port.

325 326
config ARCH_EP93XX
	bool "EP93xx-based"
327
	select CPU_ARM920T
328 329
	select ARM_AMBA
	select ARM_VIC
330
	select GENERIC_GPIO
331
	select COMMON_CLKDEV
M
Michael Buesch 已提交
332
	select ARCH_REQUIRE_GPIOLIB
333
	select ARCH_HAS_HOLES_MEMORYMODEL
334
	select ARCH_USES_GETTIMEOFFSET
335 336 337
	help
	  This enables support for the Cirrus EP93xx series of CPUs.

L
Linus Torvalds 已提交
338 339
config ARCH_FOOTBRIDGE
	bool "FootBridge"
340
	select CPU_SA110
L
Linus Torvalds 已提交
341
	select FOOTBRIDGE
342
	select ARCH_USES_GETTIMEOFFSET
343 344 345
	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
346

347 348 349 350 351
config ARCH_MXC
	bool "Freescale MXC/iMX-based"
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select ARCH_REQUIRE_GPIOLIB
352
	select COMMON_CLKDEV
353 354 355
	help
	  Support for Freescale MXC/iMX-based family of processors

356 357 358 359 360 361 362 363 364 365 366 367
config ARCH_STMP3XXX
	bool "Freescale STMP3xxx"
	select CPU_ARM926T
	select COMMON_CLKDEV
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select GENERIC_GPIO
	select USB_ARCH_HAS_EHCI
	help
	  Support for systems based on the Freescale 3xxx CPUs.

368 369
config ARCH_NETX
	bool "Hilscher NetX based"
370
	select CPU_ARM926T
371
	select ARM_VIC
372
	select GENERIC_CLOCKEVENTS
U
Uwe Kleine-König 已提交
373
	select GENERIC_TIME
374
	help
375 376 377 378
	  This enables support for systems based on the Hilscher NetX Soc

config ARCH_H720X
	bool "Hynix HMS720x-based"
379
	select CPU_ARM720T
380
	select ISA_DMA_API
381
	select ARCH_USES_GETTIMEOFFSET
382 383 384
	help
	  This enables support for systems based on the Hynix HMS720x

385 386 387
config ARCH_IOP13XX
	bool "IOP13xx-based"
	depends on MMU
388
	select CPU_XSC3
389 390 391
	select PLAT_IOP
	select PCI
	select ARCH_SUPPORTS_MSI
392
	select VMSPLIT_1G
393 394 395
	help
	  Support for Intel's IOP13XX (XScale) family of processors.

396 397
config ARCH_IOP32X
	bool "IOP32x-based"
398
	depends on MMU
399
	select CPU_XSCALE
400
	select PLAT_IOP
401
	select PCI
402
	select GENERIC_GPIO
403
	select ARCH_REQUIRE_GPIOLIB
404
	help
405 406 407 408 409 410
	  Support for Intel's 80219 and IOP32X (XScale) family of
	  processors.

config ARCH_IOP33X
	bool "IOP33x-based"
	depends on MMU
411
	select CPU_XSCALE
412
	select PLAT_IOP
413
	select PCI
414
	select GENERIC_GPIO
415
	select ARCH_REQUIRE_GPIOLIB
416 417
	help
	  Support for Intel's IOP33X (XScale) family of processors.
L
Linus Torvalds 已提交
418

419 420
config ARCH_IXP23XX
 	bool "IXP23XX-based"
421
	depends on MMU
422
	select CPU_XSC3
423
 	select PCI
424
	select ARCH_USES_GETTIMEOFFSET
425
	help
426
	  Support for Intel's IXP23xx (XScale) family of processors.
L
Linus Torvalds 已提交
427 428 429

config ARCH_IXP2000
	bool "IXP2400/2800-based"
430
	depends on MMU
431
	select CPU_XSCALE
432
	select PCI
433
	select ARCH_USES_GETTIMEOFFSET
434 435
	help
	  Support for Intel's IXP2400/2800 (XScale) family of processors.
L
Linus Torvalds 已提交
436

437 438
config ARCH_IXP4XX
	bool "IXP4xx-based"
439
	depends on MMU
440
	select CPU_XSCALE
441
	select GENERIC_GPIO
442 443
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
R
Russell King 已提交
444
	select DMABOUNCE if PCI
445
	help
446
	  Support for Intel's IXP4XX (XScale) family of processors.
447

L
Linus Torvalds 已提交
448 449
config ARCH_L7200
	bool "LinkUp-L7200"
450
	select CPU_ARM720T
L
Linus Torvalds 已提交
451
	select FIQ
452
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
453 454 455 456 457 458 459 460 461 462
	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>.

463 464 465 466 467 468 469 470 471 472 473
config ARCH_DOVE
	bool "Marvell Dove"
	select PCI
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the Marvell Dove SoC 88AP510

474 475
config ARCH_KIRKWOOD
	bool "Marvell Kirkwood"
476
	select CPU_FEROCEON
477
	select PCI
478
	select GENERIC_GPIO
479
	select ARCH_REQUIRE_GPIOLIB
480 481 482 483 484 485 486
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell Kirkwood series SoCs:
	  88F6180, 88F6192 and 88F6281.

487 488
config ARCH_LOKI
	bool "Marvell Loki (88RC8480)"
489
	select CPU_FEROCEON
490 491 492 493 494 495
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the Marvell Loki (88RC8480) SoC.

496 497
config ARCH_MV78XX0
	bool "Marvell MV78xx0"
498
	select CPU_FEROCEON
499
	select PCI
500
	select GENERIC_GPIO
501
	select ARCH_REQUIRE_GPIOLIB
502 503 504 505 506 507 508
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell MV78xx0 series SoCs:
	  MV781x0, MV782x0.

509
config ARCH_ORION5X
510 511
	bool "Marvell Orion"
	depends on MMU
512
	select CPU_FEROCEON
T
Tzachi Perelstein 已提交
513
	select PCI
T
Tzachi Perelstein 已提交
514
	select GENERIC_GPIO
515
	select ARCH_REQUIRE_GPIOLIB
516 517
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
L
Lennert Buytenhek 已提交
518
	select PLAT_ORION
519
	help
520
	  Support for the following Marvell Orion 5x series SoCs:
521
	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
522
	  Orion-2 (5281), Orion-1-90 (6183).
523

524
config ARCH_MMP
525
	bool "Marvell PXA168/910/MMP2"
526 527 528 529 530 531 532 533 534
	depends on MMU
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select COMMON_CLKDEV
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select TICK_ONESHOT
	select PLAT_PXA
	help
535
	  Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
536 537 538 539 540 541

config ARCH_KS8695
	bool "Micrel/Kendin KS8695"
	select CPU_ARM922T
	select GENERIC_GPIO
        select ARCH_REQUIRE_GPIOLIB
542
	select ARCH_USES_GETTIMEOFFSET
543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562
	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_TIME
	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
563 564
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_GPIO
565
	select COMMON_CLKDEV
566 567
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
568
	help
569 570 571 572 573 574 575
	  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>
576

577 578 579 580 581 582 583 584
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.

585 586
config ARCH_PNX4008
	bool "Philips Nexperia PNX4008 Mobile"
587
	select CPU_ARM926T
R
Russell King 已提交
588
	select COMMON_CLKDEV
589
	select ARCH_USES_GETTIMEOFFSET
590 591 592
	help
	  This enables support for Philips PNX4008 mobile platform.

L
Linus Torvalds 已提交
593
config ARCH_PXA
E
eric miao 已提交
594
	bool "PXA2xx/PXA3xx-based"
595
	depends on MMU
596
	select ARCH_MTD_XIP
597
	select ARCH_HAS_CPUFREQ
D
David Brownell 已提交
598
	select GENERIC_GPIO
599
	select COMMON_CLKDEV
M
Michael Buesch 已提交
600
	select ARCH_REQUIRE_GPIOLIB
601
	select GENERIC_TIME
602
	select GENERIC_CLOCKEVENTS
603
	select TICK_ONESHOT
604
	select PLAT_PXA
605
	help
E
eric miao 已提交
606
	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
L
Linus Torvalds 已提交
607

608 609 610
config ARCH_MSM
	bool "Qualcomm MSM"
	select CPU_V6
611 612 613
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	help
614 615 616 617
	  Support for Qualcomm MSM7K based systems.  This runs on the ARM11
	  apps processor of the MSM7K and depends on a shared memory
	  interface to the ARM9 modem processor which runs the baseband stack
	  and controls some vital subsystems (clock and power control, etc).
618

619 620 621 622 623
config ARCH_SHMOBILE
	bool "Renesas SH-Mobile"
	help
	  Support for Renesas's SH-Mobile ARM platforms

L
Linus Torvalds 已提交
624 625 626 627 628
config ARCH_RPC
	bool "RiscPC"
	select ARCH_ACORN
	select FIQ
	select TIMER_ACORN
629
	select ARCH_MAY_HAVE_PC_FDC
630
	select HAVE_PATA_PLATFORM
631
	select ISA_DMA_API
A
Al Viro 已提交
632
	select NO_IOPORT
633
	select ARCH_SPARSEMEM_ENABLE
634
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
635 636 637 638 639 640
	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"
641
	select CPU_SA1100
642
	select ISA
643
	select ARCH_SPARSEMEM_ENABLE
644
	select ARCH_MTD_XIP
645
	select ARCH_HAS_CPUFREQ
R
Russell King 已提交
646
	select CPU_FREQ
D
David Brownell 已提交
647
	select GENERIC_GPIO
648
	select GENERIC_TIME
649
	select GENERIC_CLOCKEVENTS
650
	select HAVE_CLK
651
	select TICK_ONESHOT
M
Michael Buesch 已提交
652
	select ARCH_REQUIRE_GPIOLIB
653 654
	help
	  Support for StrongARM 11x0 based boards.
L
Linus Torvalds 已提交
655 656

config ARCH_S3C2410
657
	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
D
David Brownell 已提交
658
	select GENERIC_GPIO
B
Ben Dooks 已提交
659
	select ARCH_HAS_CPUFREQ
660
	select HAVE_CLK
661
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
662 663 664
	help
	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
665
	  the Samsung SMDK2410 development board (and derivatives).
L
Linus Torvalds 已提交
666

B
Ben Dooks 已提交
667 668
config ARCH_S3C64XX
	bool "Samsung S3C64XX"
669
	select PLAT_SAMSUNG
670
	select CPU_V6
B
Ben Dooks 已提交
671
	select GENERIC_GPIO
672
	select ARM_VIC
B
Ben Dooks 已提交
673
	select HAVE_CLK
674
	select NO_IOPORT
675
	select ARCH_USES_GETTIMEOFFSET
676
	select ARCH_HAS_CPUFREQ
677 678 679 680 681 682 683 684 685 686 687
	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
688 689 690
	help
	  Samsung S3C64XX series based systems

691 692 693 694 695 696 697 698
config ARCH_S5P6440
	bool "Samsung S5P6440"
	select CPU_V6
	select GENERIC_GPIO
	select HAVE_CLK
	help
	  Samsung S5P6440 CPU based systems

699 700 701 702 703 704 705 706
config ARCH_S5P6442
	bool "Samsung S5P6442"
	select CPU_V6
	select GENERIC_GPIO
	select HAVE_CLK
	help
	  Samsung S5P6442 CPU based systems

707 708 709 710 711
config ARCH_S5PC1XX
	bool "Samsung S5PC1XX"
	select GENERIC_GPIO
	select HAVE_CLK
	select CPU_V7
712
	select ARM_L1_CACHE_SHIFT_6
713 714 715
	help
	  Samsung S5PC1XX series based systems

716 717 718 719 720 721 722 723 724
config ARCH_S5PV210
	bool "Samsung S5PV210/S5PC110"
	select CPU_V7
	select GENERIC_GPIO
	select HAVE_CLK
	select ARM_L1_CACHE_SHIFT_6
	help
	  Samsung S5PV210/S5PC110 series based systems

L
Linus Torvalds 已提交
725 726
config ARCH_SHARK
	bool "Shark"
727
	select CPU_SA110
728 729
	select ISA
	select ISA_DMA
730
	select ZONE_DMA
731
	select PCI
732
	select ARCH_USES_GETTIMEOFFSET
733 734 735
	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
736 737 738

config ARCH_LH7A40X
	bool "Sharp LH7A40X"
739
	select CPU_ARM922T
740 741
	select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
742
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
743 744 745 746 747 748
	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.

749 750 751 752
config ARCH_U300
	bool "ST-Ericsson U300 Series"
	depends on MMU
	select CPU_ARM926T
753
	select HAVE_TCM
754 755 756 757 758 759 760 761 762
	select ARM_AMBA
	select ARM_VIC
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select COMMON_CLKDEV
	select GENERIC_GPIO
	help
	  Support for ST-Ericsson U300 series mobile platforms.

763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785
config ARCH_U8500
	bool "ST-Ericsson U8500 Series"
	select CPU_V7
	select ARM_AMBA
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select COMMON_CLKDEV
	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_TIME
	select GENERIC_CLOCKEVENTS
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	help
	  Support for the Nomadik platform by ST-Ericsson

786 787
config ARCH_DAVINCI
	bool "TI DaVinci"
788
	select CPU_ARM926T
789 790
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
791
	select GENERIC_GPIO
792
	select ARCH_REQUIRE_GPIOLIB
793
	select ZONE_DMA
794
	select HAVE_IDE
795
	select COMMON_CLKDEV
D
David Brownell 已提交
796
	select GENERIC_ALLOCATOR
797
	select ARCH_HAS_HOLES_MEMORYMODEL
798 799 800
	help
	  Support for TI's DaVinci platform.

801 802 803
config ARCH_OMAP
	bool "TI OMAP"
	select GENERIC_GPIO
804
	select HAVE_CLK
M
Michael Buesch 已提交
805
	select ARCH_REQUIRE_GPIOLIB
806
	select ARCH_HAS_CPUFREQ
807
	select GENERIC_TIME
808
	select GENERIC_CLOCKEVENTS
809
	select ARCH_HAS_HOLES_MEMORYMODEL
810 811 812
	help
	  Support for TI's OMAP platform (OMAP1 and OMAP2).

L
Linus Torvalds 已提交
813 814
endchoice

815 816 817 818 819
#
# 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.
#
820 821 822 823 824 825
source "arch/arm/mach-aaec2000/Kconfig"

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

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

L
Linus Torvalds 已提交
826 827
source "arch/arm/mach-clps711x/Kconfig"

828 829 830 831
source "arch/arm/mach-davinci/Kconfig"

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

832 833
source "arch/arm/mach-ep93xx/Kconfig"

L
Linus Torvalds 已提交
834 835
source "arch/arm/mach-footbridge/Kconfig"

836 837
source "arch/arm/mach-gemini/Kconfig"

838 839
source "arch/arm/mach-h720x/Kconfig"

L
Linus Torvalds 已提交
840 841
source "arch/arm/mach-integrator/Kconfig"

842 843 844
source "arch/arm/mach-iop32x/Kconfig"

source "arch/arm/mach-iop33x/Kconfig"
L
Linus Torvalds 已提交
845

846 847
source "arch/arm/mach-iop13xx/Kconfig"

L
Linus Torvalds 已提交
848 849 850 851
source "arch/arm/mach-ixp4xx/Kconfig"

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

852 853
source "arch/arm/mach-ixp23xx/Kconfig"

854 855 856 857 858 859
source "arch/arm/mach-kirkwood/Kconfig"

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

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

860 861
source "arch/arm/mach-loki/Kconfig"

862 863
source "arch/arm/mach-msm/Kconfig"

864 865
source "arch/arm/mach-mv78xx0/Kconfig"

866
source "arch/arm/plat-mxc/Kconfig"
L
Linus Torvalds 已提交
867

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

870 871 872 873
source "arch/arm/mach-nomadik/Kconfig"
source "arch/arm/plat-nomadik/Kconfig"

source "arch/arm/mach-ns9xxx/Kconfig"
L
Linus Torvalds 已提交
874

R
Russell King 已提交
875
source "arch/arm/mach-nuc93x/Kconfig"
L
Linus Torvalds 已提交
876

877 878 879
source "arch/arm/plat-omap/Kconfig"

source "arch/arm/mach-omap1/Kconfig"
L
Linus Torvalds 已提交
880

881 882
source "arch/arm/mach-omap2/Kconfig"

883
source "arch/arm/mach-orion5x/Kconfig"
884

885 886
source "arch/arm/mach-pxa/Kconfig"
source "arch/arm/plat-pxa/Kconfig"
887

888 889 890 891 892
source "arch/arm/mach-mmp/Kconfig"

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

source "arch/arm/mach-sa1100/Kconfig"
893

894
source "arch/arm/plat-samsung/Kconfig"
895
source "arch/arm/plat-s3c24xx/Kconfig"
896
source "arch/arm/plat-s5p/Kconfig"
897
source "arch/arm/plat-s5pc1xx/Kconfig"
898 899 900

if ARCH_S3C2410
source "arch/arm/mach-s3c2400/Kconfig"
L
Linus Torvalds 已提交
901
source "arch/arm/mach-s3c2410/Kconfig"
902 903
source "arch/arm/mach-s3c2412/Kconfig"
source "arch/arm/mach-s3c2440/Kconfig"
904
source "arch/arm/mach-s3c2443/Kconfig"
905
endif
L
Linus Torvalds 已提交
906

B
Ben Dooks 已提交
907
if ARCH_S3C64XX
908
source "arch/arm/mach-s3c64xx/Kconfig"
B
Ben Dooks 已提交
909 910
endif

911 912
source "arch/arm/mach-s5p6440/Kconfig"

913
source "arch/arm/mach-s5p6442/Kconfig"
914

915 916 917 918
if ARCH_S5PC1XX
source "arch/arm/mach-s5pc100/Kconfig"
endif

919 920
source "arch/arm/mach-s5pv210/Kconfig"

921
source "arch/arm/mach-shmobile/Kconfig"
922

923
source "arch/arm/plat-stmp3xxx/Kconfig"
924

925
source "arch/arm/mach-u300/Kconfig"
L
Linus Torvalds 已提交
926

927
source "arch/arm/mach-ux500/Kconfig"
L
Linus Torvalds 已提交
928 929 930

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

931 932
source "arch/arm/mach-w90x900/Kconfig"

L
Linus Torvalds 已提交
933 934 935 936
# Definitions to make life easier
config ARCH_ACORN
	bool

937 938
config PLAT_IOP
	bool
M
Mikael Pettersson 已提交
939
	select GENERIC_CLOCKEVENTS
M
Mikael Pettersson 已提交
940
	select GENERIC_TIME
941

L
Lennert Buytenhek 已提交
942 943 944
config PLAT_ORION
	bool

945 946 947
config PLAT_PXA
	bool

L
Linus Torvalds 已提交
948 949
source arch/arm/mm/Kconfig

950 951
config IWMMXT
	bool "Enable iWMMXt support"
952 953
	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
	default y if PXA27x || PXA3xx || ARCH_MMP
954 955 956 957
	help
	  Enable support for iWMMXt context switching at run time if
	  running on a CPU that supports it.

L
Linus Torvalds 已提交
958 959 960 961 962 963
#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
config XSCALE_PMU
	bool
	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
	default y

964 965 966 967 968
config CPU_HAS_PMU
	depends on CPU_V6 || CPU_V7 || XSCALE_PMU
	default y
	bool

969 970 971 972
if !MMU
source "arch/arm/Kconfig-nommu"
endif

973 974 975 976 977 978 979 980 981
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.

982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997
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.

998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010
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.

1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022
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.

1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035
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
1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058
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.

1059
# Select ISA DMA controller support
L
Linus Torvalds 已提交
1060 1061
config ISA_DMA
	bool
1062
	select ISA_DMA_API
L
Linus Torvalds 已提交
1063

1064
# Select ISA DMA interface
A
Al Viro 已提交
1065 1066 1067
config ISA_DMA_API
	bool

L
Linus Torvalds 已提交
1068
config PCI
M
Mike Rapoport 已提交
1069
	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
L
Linus Torvalds 已提交
1070 1071 1072 1073 1074 1075
	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.

1076 1077 1078
config PCI_SYSCALL
	def_bool PCI

L
Linus Torvalds 已提交
1079 1080 1081 1082 1083 1084
# Select the host bridge type
config PCI_HOST_VIA82C505
	bool
	depends on PCI && ARCH_SHARK
	default y

M
Mike Rapoport 已提交
1085 1086 1087 1088 1089 1090
config PCI_HOST_ITE8152
	bool
	depends on PCI && MACH_ARMCORE
	default y
	select DMABOUNCE

L
Linus Torvalds 已提交
1091 1092 1093 1094 1095 1096 1097 1098
source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

endmenu

menu "Kernel Features"

1099 1100
source "kernel/time/Kconfig"

L
Linus Torvalds 已提交
1101 1102
config SMP
	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
1103
	depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
1104
		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
1105
	depends on GENERIC_CLOCKEVENTS
1106
	select USE_GENERIC_SMP_HELPERS
1107
	select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
L
Linus Torvalds 已提交
1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118
	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
1119
	  See also <file:Documentation/i386/IO-APIC.txt>,
L
Linus Torvalds 已提交
1120 1121 1122 1123 1124
	  <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.

1125 1126 1127 1128 1129 1130
config HAVE_ARM_SCU
	bool
	depends on SMP
	help
	  This option enables support for the ARM system coherency unit

1131 1132 1133 1134 1135 1136
config HAVE_ARM_TWD
	bool
	depends on SMP
	help
	  This options enables support for the ARM timer and watchdog unit

1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159
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
1160 1161 1162 1163 1164 1165
config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
	default "4"

1166 1167 1168 1169 1170 1171 1172
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.

1173 1174
config LOCAL_TIMERS
	bool "Use local timer interrupts"
1175
	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1176
		REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
1177
	default y
1178
	select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
1179 1180 1181 1182 1183 1184
	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.

1185
source kernel/Kconfig.preempt
L
Linus Torvalds 已提交
1186

1187 1188 1189
config HZ
	int
	default 128 if ARCH_L7200
1190
	default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
1191
	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
1192
	default AT91_TIMER_HZ if ARCH_AT91
1193 1194
	default 100

1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206
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.

1207 1208 1209
config ARM_ASM_UNIFIED
	bool

1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224
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.

1225
config OABI_COMPAT
1226
	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
1227
	depends on AEABI && EXPERIMENTAL
1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241
	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.

1242
config ARCH_HAS_HOLES_MEMORYMODEL
1243 1244
	bool

1245
# Discontigmem is deprecated
1246
config ARCH_DISCONTIGMEM_ENABLE
L
Linus Torvalds 已提交
1247 1248
	bool

1249 1250 1251
config ARCH_SPARSEMEM_ENABLE
	bool

1252 1253 1254
config ARCH_SPARSEMEM_DEFAULT
	def_bool ARCH_SPARSEMEM_ENABLE

1255
config ARCH_SELECT_MEMORY_MODEL
1256
	def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
1257

Y
Yasunori Goto 已提交
1258 1259 1260 1261 1262 1263
config NODES_SHIFT
	int
	default "4" if ARCH_LH7A40X
	default "2"
	depends on NEED_MULTIPLE_NODES

N
Nicolas Pitre 已提交
1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280
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
1281 1282 1283 1284 1285
config HIGHPTE
	bool "Allocate 2nd-level pagetables from highmem"
	depends on HIGHMEM
	depends on !OUTER_CACHE

1286 1287
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
1288
	depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
1289 1290 1291 1292 1293
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

1294 1295
source "mm/Kconfig"

L
Linus Torvalds 已提交
1296 1297
config LEDS
	bool "Timer and CPU usage LEDs"
1298
	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
1299
		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
L
Linus Torvalds 已提交
1300 1301
		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
1302
		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
1303
		   ARCH_AT91 || ARCH_DAVINCI || \
1304
		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
L
Linus Torvalds 已提交
1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317
	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
1318 1319
			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			    || MACH_OMAP_PERSEUS2
L
Linus Torvalds 已提交
1320
	depends on LEDS
1321
	depends on !GENERIC_CLOCKEVENTS
L
Linus Torvalds 已提交
1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335
	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
1336 1337 1338
			!ARCH_OMAP) \
			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			|| MACH_OMAP_PERSEUS2
L
Linus Torvalds 已提交
1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350
	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
1351
	depends on CPU_CP15_MMU
L
Linus Torvalds 已提交
1352
	default y if !ARCH_EBSA110
1353
	select HAVE_PROC_CPU if PROC_FS
L
Linus Torvalds 已提交
1354
	help
1355
	  ARM processors cannot fetch/store information which is not
L
Linus Torvalds 已提交
1356 1357 1358 1359 1360 1361 1362
	  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.

1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378
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
1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399
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
1400 1401 1402 1403 1404 1405
	  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
1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455

	  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).

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
1456 1457 1458 1459 1460 1461
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
1462
	  but it is independent of the system firmware.   And like a reboot
R
Richard Purdie 已提交
1463 1464 1465 1466 1467 1468 1469
	  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.

1470 1471
config ATAGS_PROC
	bool "Export atags in procfs"
1472 1473
	depends on KEXEC
	default y
1474 1475 1476 1477
	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
1478 1479
endmenu

1480
menu "CPU Power Management"
L
Linus Torvalds 已提交
1481

1482
if ARCH_HAS_CPUFREQ
L
Linus Torvalds 已提交
1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502

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
1503 1504 1505 1506 1507 1508
config CPU_FREQ_PXA
	bool
	depends on CPU_FREQ && ARCH_PXA && PXA25x
	default y
	select CPU_FREQ_DEFAULT_GOV_USERSPACE

1509 1510 1511 1512
config CPU_FREQ_S3C64XX
	bool "CPUfreq support for Samsung S3C64XX CPUs"
	depends on CPU_FREQ && CPU_S3C6410

B
Ben Dooks 已提交
1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 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
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

1553 1554 1555 1556 1557 1558
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
1559 1560
endif

1561 1562 1563 1564
source "drivers/cpuidle/Kconfig"

endmenu

L
Linus Torvalds 已提交
1565 1566 1567 1568 1569 1570
menu "Floating point emulation"

comment "At least one emulation must be selected"

config FPE_NWFPE
	bool "NWFPE math emulation"
1571
	depends on !AEABI || OABI_COMPAT
L
Linus Torvalds 已提交
1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582
	---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"
1583
	depends on FPE_NWFPE
L
Linus Torvalds 已提交
1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594
	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)"
1595
	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
L
Linus Torvalds 已提交
1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608
	---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
1609
	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
L
Linus Torvalds 已提交
1610 1611 1612 1613 1614 1615 1616 1617 1618
	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.

1619 1620 1621 1622 1623
config VFPv3
	bool
	depends on VFP
	default y if CPU_V7

1624 1625 1626 1627 1628 1629 1630
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
1631 1632 1633 1634 1635 1636 1637 1638
endmenu

menu "Userspace binary formats"

source "fs/Kconfig.binfmt"

config ARTHUR
	tristate "RISC OS personality"
1639
	depends on !AEABI
L
Linus Torvalds 已提交
1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650
	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
1651
source "kernel/power/Kconfig"
L
Linus Torvalds 已提交
1652

J
Johannes Berg 已提交
1653 1654 1655
config ARCH_SUSPEND_POSSIBLE
	def_bool y

L
Linus Torvalds 已提交
1656 1657
endmenu

1658 1659
source "net/Kconfig"

1660
source "drivers/Kconfig"
L
Linus Torvalds 已提交
1661 1662 1663 1664 1665 1666 1667 1668 1669 1670

source "fs/Kconfig"

source "arch/arm/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"