Kconfig 44.3 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)
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

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

307 308 309 310
config ARCH_GEMINI
	bool "Cortina Systems Gemini"
	select CPU_FA526
	select ARCH_REQUIRE_GPIOLIB
311
	select ARCH_USES_GETTIMEOFFSET
312 313 314
	help
	  Support for the Cortina Systems Gemini family SoCs

L
Linus Torvalds 已提交
315 316
config ARCH_EBSA110
	bool "EBSA-110"
317
	select CPU_SA110
318
	select ISA
319
	select NO_IOPORT
320
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
321 322
	help
	  This is an evaluation board for the StrongARM processor available
323
	  from Digital. It has limited hardware on-board, including an
L
Linus Torvalds 已提交
324 325 326
	  Ethernet interface, two PCMCIA sockets, two serial ports and a
	  parallel port.

327 328
config ARCH_EP93XX
	bool "EP93xx-based"
329
	select CPU_ARM920T
330 331
	select ARM_AMBA
	select ARM_VIC
332
	select COMMON_CLKDEV
M
Michael Buesch 已提交
333
	select ARCH_REQUIRE_GPIOLIB
334
	select ARCH_HAS_HOLES_MEMORYMODEL
335
	select ARCH_USES_GETTIMEOFFSET
336 337 338
	help
	  This enables support for the Cirrus EP93xx series of CPUs.

L
Linus Torvalds 已提交
339 340
config ARCH_FOOTBRIDGE
	bool "FootBridge"
341
	select CPU_SA110
L
Linus Torvalds 已提交
342
	select FOOTBRIDGE
343
	select ARCH_USES_GETTIMEOFFSET
344 345 346
	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
347

348 349 350 351
config ARCH_MXC
	bool "Freescale MXC/iMX-based"
	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
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.

366 367
config ARCH_NETX
	bool "Hilscher NetX based"
368
	select CPU_ARM926T
369
	select ARM_VIC
370
	select GENERIC_CLOCKEVENTS
371
	help
372 373 374 375
	  This enables support for systems based on the Hilscher NetX Soc

config ARCH_H720X
	bool "Hynix HMS720x-based"
376
	select CPU_ARM720T
377
	select ISA_DMA_API
378
	select ARCH_USES_GETTIMEOFFSET
379 380 381
	help
	  This enables support for systems based on the Hynix HMS720x

382 383 384
config ARCH_IOP13XX
	bool "IOP13xx-based"
	depends on MMU
385
	select CPU_XSC3
386 387 388
	select PLAT_IOP
	select PCI
	select ARCH_SUPPORTS_MSI
389
	select VMSPLIT_1G
390 391 392
	help
	  Support for Intel's IOP13XX (XScale) family of processors.

393 394
config ARCH_IOP32X
	bool "IOP32x-based"
395
	depends on MMU
396
	select CPU_XSCALE
397
	select PLAT_IOP
398
	select PCI
399
	select ARCH_REQUIRE_GPIOLIB
400
	help
401 402 403 404 405 406
	  Support for Intel's 80219 and IOP32X (XScale) family of
	  processors.

config ARCH_IOP33X
	bool "IOP33x-based"
	depends on MMU
407
	select CPU_XSCALE
408
	select PLAT_IOP
409
	select PCI
410
	select ARCH_REQUIRE_GPIOLIB
411 412
	help
	  Support for Intel's IOP33X (XScale) family of processors.
L
Linus Torvalds 已提交
413

414 415
config ARCH_IXP23XX
 	bool "IXP23XX-based"
416
	depends on MMU
417
	select CPU_XSC3
418
 	select PCI
419
	select ARCH_USES_GETTIMEOFFSET
420
	help
421
	  Support for Intel's IXP23xx (XScale) family of processors.
L
Linus Torvalds 已提交
422 423 424

config ARCH_IXP2000
	bool "IXP2400/2800-based"
425
	depends on MMU
426
	select CPU_XSCALE
427
	select PCI
428
	select ARCH_USES_GETTIMEOFFSET
429 430
	help
	  Support for Intel's IXP2400/2800 (XScale) family of processors.
L
Linus Torvalds 已提交
431

432 433
config ARCH_IXP4XX
	bool "IXP4xx-based"
434
	depends on MMU
435
	select CPU_XSCALE
436
	select GENERIC_GPIO
437
	select GENERIC_CLOCKEVENTS
R
Russell King 已提交
438
	select DMABOUNCE if PCI
439
	help
440
	  Support for Intel's IXP4XX (XScale) family of processors.
441

L
Linus Torvalds 已提交
442 443
config ARCH_L7200
	bool "LinkUp-L7200"
444
	select CPU_ARM720T
L
Linus Torvalds 已提交
445
	select FIQ
446
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
447 448 449 450 451 452 453 454 455 456
	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>.

457 458 459 460 461 462 463 464 465
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

466 467
config ARCH_KIRKWOOD
	bool "Marvell Kirkwood"
468
	select CPU_FEROCEON
469
	select PCI
470
	select ARCH_REQUIRE_GPIOLIB
471 472 473 474 475 476
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell Kirkwood series SoCs:
	  88F6180, 88F6192 and 88F6281.

477 478
config ARCH_LOKI
	bool "Marvell Loki (88RC8480)"
479
	select CPU_FEROCEON
480 481 482 483 484
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the Marvell Loki (88RC8480) SoC.

485 486 487 488 489 490 491 492 493 494 495 496 497
config ARCH_LPC32XX
	bool "NXP LPC32XX"
	select CPU_ARM926T
	select ARCH_REQUIRE_GPIOLIB
	select HAVE_IDE
	select ARM_AMBA
	select USB_ARCH_HAS_OHCI
	select COMMON_CLKDEV
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	help
	  Support for the NXP LPC32XX family of processors

498 499
config ARCH_MV78XX0
	bool "Marvell MV78xx0"
500
	select CPU_FEROCEON
501
	select PCI
502
	select ARCH_REQUIRE_GPIOLIB
503 504 505 506 507 508
	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
514
	select ARCH_REQUIRE_GPIOLIB
515
	select GENERIC_CLOCKEVENTS
L
Lennert Buytenhek 已提交
516
	select PLAT_ORION
517
	help
518
	  Support for the following Marvell Orion 5x series SoCs:
519
	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
520
	  Orion-2 (5281), Orion-1-90 (6183).
521

522
config ARCH_MMP
523
	bool "Marvell PXA168/910/MMP2"
524 525 526 527 528 529 530
	depends on MMU
	select ARCH_REQUIRE_GPIOLIB
	select COMMON_CLKDEV
	select GENERIC_CLOCKEVENTS
	select TICK_ONESHOT
	select PLAT_PXA
	help
531
	  Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
532 533 534 535

config ARCH_KS8695
	bool "Micrel/Kendin KS8695"
	select CPU_ARM922T
536
	select ARCH_REQUIRE_GPIOLIB
537
	select ARCH_USES_GETTIMEOFFSET
538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556
	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
557
	select ARCH_REQUIRE_GPIOLIB
558
	select COMMON_CLKDEV
559
	select GENERIC_CLOCKEVENTS
560
	help
561 562 563 564 565 566 567
	  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>
568

569 570 571 572 573 574 575 576
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.

577 578
config ARCH_PNX4008
	bool "Philips Nexperia PNX4008 Mobile"
579
	select CPU_ARM926T
R
Russell King 已提交
580
	select COMMON_CLKDEV
581
	select ARCH_USES_GETTIMEOFFSET
582 583 584
	help
	  This enables support for Philips PNX4008 mobile platform.

L
Linus Torvalds 已提交
585
config ARCH_PXA
E
eric miao 已提交
586
	bool "PXA2xx/PXA3xx-based"
587
	depends on MMU
588
	select ARCH_MTD_XIP
589
	select ARCH_HAS_CPUFREQ
590
	select COMMON_CLKDEV
M
Michael Buesch 已提交
591
	select ARCH_REQUIRE_GPIOLIB
592
	select GENERIC_CLOCKEVENTS
593
	select TICK_ONESHOT
594
	select PLAT_PXA
595
	help
E
eric miao 已提交
596
	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
L
Linus Torvalds 已提交
597

598 599
config ARCH_MSM
	bool "Qualcomm MSM"
600
	select HAVE_CLK
601 602
	select GENERIC_CLOCKEVENTS
	help
603 604 605 606 607
	  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).
608

609 610 611 612 613
config ARCH_SHMOBILE
	bool "Renesas SH-Mobile"
	help
	  Support for Renesas's SH-Mobile ARM platforms

L
Linus Torvalds 已提交
614 615 616 617 618
config ARCH_RPC
	bool "RiscPC"
	select ARCH_ACORN
	select FIQ
	select TIMER_ACORN
619
	select ARCH_MAY_HAVE_PC_FDC
620
	select HAVE_PATA_PLATFORM
621
	select ISA_DMA_API
A
Al Viro 已提交
622
	select NO_IOPORT
623
	select ARCH_SPARSEMEM_ENABLE
624
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
625 626 627 628 629 630
	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"
631
	select CPU_SA1100
632
	select ISA
633
	select ARCH_SPARSEMEM_ENABLE
634
	select ARCH_MTD_XIP
635
	select ARCH_HAS_CPUFREQ
R
Russell King 已提交
636
	select CPU_FREQ
637
	select GENERIC_CLOCKEVENTS
638
	select HAVE_CLK
639
	select TICK_ONESHOT
M
Michael Buesch 已提交
640
	select ARCH_REQUIRE_GPIOLIB
641 642
	help
	  Support for StrongARM 11x0 based boards.
L
Linus Torvalds 已提交
643 644

config ARCH_S3C2410
645
	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
D
David Brownell 已提交
646
	select GENERIC_GPIO
B
Ben Dooks 已提交
647
	select ARCH_HAS_CPUFREQ
648
	select HAVE_CLK
649
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
650 651 652
	help
	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
653
	  the Samsung SMDK2410 development board (and derivatives).
L
Linus Torvalds 已提交
654

655 656 657 658
	  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
659 660
config ARCH_S3C64XX
	bool "Samsung S3C64XX"
661
	select PLAT_SAMSUNG
662 663
	select CPU_V6
	select ARM_VIC
B
Ben Dooks 已提交
664
	select HAVE_CLK
665
	select NO_IOPORT
666
	select ARCH_USES_GETTIMEOFFSET
667
	select ARCH_HAS_CPUFREQ
668 669 670 671 672 673 674 675 676 677 678
	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
679 680 681
	help
	  Samsung S3C64XX series based systems

682 683 684 685 686
config ARCH_S5P6440
	bool "Samsung S5P6440"
	select CPU_V6
	select GENERIC_GPIO
	select HAVE_CLK
687
	select ARCH_USES_GETTIMEOFFSET
688 689 690
	help
	  Samsung S5P6440 CPU based systems

691 692 693 694 695
config ARCH_S5P6442
	bool "Samsung S5P6442"
	select CPU_V6
	select GENERIC_GPIO
	select HAVE_CLK
696
	select ARCH_USES_GETTIMEOFFSET
697 698 699
	help
	  Samsung S5P6442 CPU based systems

700 701
config ARCH_S5PC100
	bool "Samsung S5PC100"
702 703 704
	select GENERIC_GPIO
	select HAVE_CLK
	select CPU_V7
705
	select ARM_L1_CACHE_SHIFT_6
706
	select ARCH_USES_GETTIMEOFFSET
707
	help
708
	  Samsung S5PC100 series based systems
709

710 711 712 713 714 715
config ARCH_S5PV210
	bool "Samsung S5PV210/S5PC110"
	select CPU_V7
	select GENERIC_GPIO
	select HAVE_CLK
	select ARM_L1_CACHE_SHIFT_6
716
	select ARCH_USES_GETTIMEOFFSET
717 718 719
	help
	  Samsung S5PV210/S5PC110 series based systems

L
Linus Torvalds 已提交
720 721
config ARCH_SHARK
	bool "Shark"
722
	select CPU_SA110
723 724
	select ISA
	select ISA_DMA
725
	select ZONE_DMA
726
	select PCI
727
	select ARCH_USES_GETTIMEOFFSET
728 729 730
	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
731 732 733

config ARCH_LH7A40X
	bool "Sharp LH7A40X"
734
	select CPU_ARM922T
735 736
	select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
737
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
738 739 740 741 742 743
	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.

744 745 746 747
config ARCH_U300
	bool "ST-Ericsson U300 Series"
	depends on MMU
	select CPU_ARM926T
748
	select HAVE_TCM
749 750 751 752 753 754 755 756
	select ARM_AMBA
	select ARM_VIC
	select GENERIC_CLOCKEVENTS
	select COMMON_CLKDEV
	select GENERIC_GPIO
	help
	  Support for ST-Ericsson U300 series mobile platforms.

757 758 759 760 761 762
config ARCH_U8500
	bool "ST-Ericsson U8500 Series"
	select CPU_V7
	select ARM_AMBA
	select GENERIC_CLOCKEVENTS
	select COMMON_CLKDEV
763
	select ARCH_REQUIRE_GPIOLIB
764 765 766 767 768 769 770 771 772 773 774 775 776 777
	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

778 779 780
config ARCH_DAVINCI
	bool "TI DaVinci"
	select GENERIC_CLOCKEVENTS
781
	select ARCH_REQUIRE_GPIOLIB
782
	select ZONE_DMA
783
	select HAVE_IDE
784
	select COMMON_CLKDEV
D
David Brownell 已提交
785
	select GENERIC_ALLOCATOR
786
	select ARCH_HAS_HOLES_MEMORYMODEL
787 788 789
	help
	  Support for TI's DaVinci platform.

790 791
config ARCH_OMAP
	bool "TI OMAP"
792
	select HAVE_CLK
M
Michael Buesch 已提交
793
	select ARCH_REQUIRE_GPIOLIB
794
	select ARCH_HAS_CPUFREQ
795
	select GENERIC_CLOCKEVENTS
796
	select ARCH_HAS_HOLES_MEMORYMODEL
797 798 799
	help
	  Support for TI's OMAP platform (OMAP1 and OMAP2).

800 801 802 803 804 805 806 807 808 809
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
810 811
endchoice

812 813 814 815 816
#
# 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.
#
817 818 819 820 821 822
source "arch/arm/mach-aaec2000/Kconfig"

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

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

L
Linus Torvalds 已提交
823 824
source "arch/arm/mach-clps711x/Kconfig"

825 826
source "arch/arm/mach-cns3xxx/Kconfig"

827 828 829 830
source "arch/arm/mach-davinci/Kconfig"

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

831 832
source "arch/arm/mach-ep93xx/Kconfig"

L
Linus Torvalds 已提交
833 834
source "arch/arm/mach-footbridge/Kconfig"

835 836
source "arch/arm/mach-gemini/Kconfig"

837 838
source "arch/arm/mach-h720x/Kconfig"

L
Linus Torvalds 已提交
839 840
source "arch/arm/mach-integrator/Kconfig"

841 842 843
source "arch/arm/mach-iop32x/Kconfig"

source "arch/arm/mach-iop33x/Kconfig"
L
Linus Torvalds 已提交
844

845 846
source "arch/arm/mach-iop13xx/Kconfig"

L
Linus Torvalds 已提交
847 848 849 850
source "arch/arm/mach-ixp4xx/Kconfig"

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

851 852
source "arch/arm/mach-ixp23xx/Kconfig"

853 854 855 856 857 858
source "arch/arm/mach-kirkwood/Kconfig"

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

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

859 860
source "arch/arm/mach-loki/Kconfig"

861 862
source "arch/arm/mach-lpc32xx/Kconfig"

863 864
source "arch/arm/mach-msm/Kconfig"

865 866
source "arch/arm/mach-mv78xx0/Kconfig"

867
source "arch/arm/plat-mxc/Kconfig"
L
Linus Torvalds 已提交
868

869
source "arch/arm/mach-netx/Kconfig"
870

871 872 873 874
source "arch/arm/mach-nomadik/Kconfig"
source "arch/arm/plat-nomadik/Kconfig"

source "arch/arm/mach-ns9xxx/Kconfig"
L
Linus Torvalds 已提交
875

R
Russell King 已提交
876
source "arch/arm/mach-nuc93x/Kconfig"
L
Linus Torvalds 已提交
877

878 879 880
source "arch/arm/plat-omap/Kconfig"

source "arch/arm/mach-omap1/Kconfig"
L
Linus Torvalds 已提交
881

882 883
source "arch/arm/mach-omap2/Kconfig"

884
source "arch/arm/mach-orion5x/Kconfig"
885

886 887
source "arch/arm/mach-pxa/Kconfig"
source "arch/arm/plat-pxa/Kconfig"
888

889 890 891 892 893
source "arch/arm/mach-mmp/Kconfig"

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

source "arch/arm/mach-sa1100/Kconfig"
894

895
source "arch/arm/plat-samsung/Kconfig"
896
source "arch/arm/plat-s3c24xx/Kconfig"
897
source "arch/arm/plat-s5p/Kconfig"
898

899
source "arch/arm/plat-spear/Kconfig"
900 901 902

if ARCH_S3C2410
source "arch/arm/mach-s3c2400/Kconfig"
L
Linus Torvalds 已提交
903
source "arch/arm/mach-s3c2410/Kconfig"
904
source "arch/arm/mach-s3c2412/Kconfig"
Y
Yauhen Kharuzhy 已提交
905
source "arch/arm/mach-s3c2416/Kconfig"
906
source "arch/arm/mach-s3c2440/Kconfig"
907
source "arch/arm/mach-s3c2443/Kconfig"
908
endif
L
Linus Torvalds 已提交
909

B
Ben Dooks 已提交
910
if ARCH_S3C64XX
911
source "arch/arm/mach-s3c64xx/Kconfig"
B
Ben Dooks 已提交
912 913
endif

914 915
source "arch/arm/mach-s5p6440/Kconfig"

916
source "arch/arm/mach-s5p6442/Kconfig"
917

918 919
source "arch/arm/mach-s5pc100/Kconfig"

920 921
source "arch/arm/mach-s5pv210/Kconfig"

922
source "arch/arm/mach-shmobile/Kconfig"
923

924
source "arch/arm/plat-stmp3xxx/Kconfig"
925

926
source "arch/arm/mach-u300/Kconfig"
L
Linus Torvalds 已提交
927

928
source "arch/arm/mach-ux500/Kconfig"
L
Linus Torvalds 已提交
929 930 931

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

932 933
source "arch/arm/mach-vexpress/Kconfig"

934 935
source "arch/arm/mach-w90x900/Kconfig"

L
Linus Torvalds 已提交
936 937 938 939
# Definitions to make life easier
config ARCH_ACORN
	bool

940 941
config PLAT_IOP
	bool
M
Mikael Pettersson 已提交
942
	select GENERIC_CLOCKEVENTS
943

L
Lennert Buytenhek 已提交
944 945 946
config PLAT_ORION
	bool

947 948 949
config PLAT_PXA
	bool

950 951 952
config PLAT_VERSATILE
	bool

953 954 955
config ARM_TIMER_SP804
	bool

L
Linus Torvalds 已提交
956 957
source arch/arm/mm/Kconfig

958 959
config IWMMXT
	bool "Enable iWMMXt support"
960 961
	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
	default y if PXA27x || PXA3xx || ARCH_MMP
962 963 964 965
	help
	  Enable support for iWMMXt context switching at run time if
	  running on a CPU that supports it.

L
Linus Torvalds 已提交
966 967 968 969 970 971
#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
config XSCALE_PMU
	bool
	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
	default y

972
config CPU_HAS_PMU
973 974
	depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
		   (!ARCH_OMAP3 || OMAP3_EMU)
975 976 977
	default y
	bool

978 979 980 981
if !MMU
source "arch/arm/Kconfig-nommu"
endif

982 983 984 985 986 987 988 989 990
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.

991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006
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.

1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019
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.

1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031
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.

1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044
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
1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067
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.

1068
# Select ISA DMA controller support
L
Linus Torvalds 已提交
1069 1070
config ISA_DMA
	bool
1071
	select ISA_DMA_API
L
Linus Torvalds 已提交
1072

1073
# Select ISA DMA interface
A
Al Viro 已提交
1074 1075 1076
config ISA_DMA_API
	bool

L
Linus Torvalds 已提交
1077
config PCI
M
Mike Rapoport 已提交
1078
	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
L
Linus Torvalds 已提交
1079 1080 1081 1082 1083 1084
	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.

1085 1086 1087 1088
config PCI_DOMAINS
	bool
	depends on PCI

1089 1090 1091
config PCI_SYSCALL
	def_bool PCI

L
Linus Torvalds 已提交
1092 1093 1094 1095 1096 1097
# Select the host bridge type
config PCI_HOST_VIA82C505
	bool
	depends on PCI && ARCH_SHARK
	default y

M
Mike Rapoport 已提交
1098 1099 1100 1101 1102 1103
config PCI_HOST_ITE8152
	bool
	depends on PCI && MACH_ARMCORE
	default y
	select DMABOUNCE

L
Linus Torvalds 已提交
1104 1105 1106 1107 1108 1109 1110 1111
source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

endmenu

menu "Kernel Features"

1112 1113
source "kernel/time/Kconfig"

L
Linus Torvalds 已提交
1114 1115
config SMP
	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
1116
	depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
1117 1118
		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
		 ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
1119
	depends on GENERIC_CLOCKEVENTS
1120
	select USE_GENERIC_SMP_HELPERS
1121
	select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
L
Linus Torvalds 已提交
1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132
	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
1133
	  See also <file:Documentation/i386/IO-APIC.txt>,
L
Linus Torvalds 已提交
1134 1135 1136 1137 1138
	  <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.

1139 1140 1141 1142 1143 1144
config HAVE_ARM_SCU
	bool
	depends on SMP
	help
	  This option enables support for the ARM system coherency unit

1145 1146 1147 1148 1149 1150
config HAVE_ARM_TWD
	bool
	depends on SMP
	help
	  This options enables support for the ARM timer and watchdog unit

1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173
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
1174 1175 1176 1177 1178 1179
config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
	default "4"

1180 1181 1182 1183 1184 1185 1186
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.

1187 1188
config LOCAL_TIMERS
	bool "Use local timer interrupts"
1189
	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1190
		REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
1191
	default y
1192
	select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
1193 1194 1195 1196 1197 1198
	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.

1199
source kernel/Kconfig.preempt
L
Linus Torvalds 已提交
1200

1201 1202 1203
config HZ
	int
	default 128 if ARCH_L7200
1204
	default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
1205
	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
1206
	default AT91_TIMER_HZ if ARCH_AT91
1207 1208
	default 100

1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220
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.

1221 1222 1223
config ARM_ASM_UNIFIED
	bool

1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238
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.

1239
config OABI_COMPAT
1240
	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
1241
	depends on AEABI && EXPERIMENTAL
1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255
	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.

1256
config ARCH_HAS_HOLES_MEMORYMODEL
1257 1258
	bool

1259
# Discontigmem is deprecated
1260
config ARCH_DISCONTIGMEM_ENABLE
L
Linus Torvalds 已提交
1261 1262
	bool

1263 1264 1265
config ARCH_SPARSEMEM_ENABLE
	bool

1266 1267 1268
config ARCH_SPARSEMEM_DEFAULT
	def_bool ARCH_SPARSEMEM_ENABLE

1269
config ARCH_SELECT_MEMORY_MODEL
1270
	def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
1271

Y
Yasunori Goto 已提交
1272 1273 1274 1275 1276 1277
config NODES_SHIFT
	int
	default "4" if ARCH_LH7A40X
	default "2"
	depends on NEED_MULTIPLE_NODES

N
Nicolas Pitre 已提交
1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294
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
1295 1296 1297 1298 1299
config HIGHPTE
	bool "Allocate 2nd-level pagetables from highmem"
	depends on HIGHMEM
	depends on !OUTER_CACHE

1300 1301
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
1302
	depends on PERF_EVENTS && CPU_HAS_PMU
1303 1304 1305 1306 1307
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

1308 1309
source "mm/Kconfig"

L
Linus Torvalds 已提交
1310 1311
config LEDS
	bool "Timer and CPU usage LEDs"
1312
	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
1313
		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
L
Linus Torvalds 已提交
1314 1315
		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
1316
		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
1317
		   ARCH_AT91 || ARCH_DAVINCI || \
1318
		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
L
Linus Torvalds 已提交
1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331
	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
1332 1333
			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			    || MACH_OMAP_PERSEUS2
L
Linus Torvalds 已提交
1334
	depends on LEDS
1335
	depends on !GENERIC_CLOCKEVENTS
L
Linus Torvalds 已提交
1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349
	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
1350 1351 1352
			!ARCH_OMAP) \
			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			|| MACH_OMAP_PERSEUS2
L
Linus Torvalds 已提交
1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364
	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
1365
	depends on CPU_CP15_MMU
L
Linus Torvalds 已提交
1366
	default y if !ARCH_EBSA110
1367
	select HAVE_PROC_CPU if PROC_FS
L
Linus Torvalds 已提交
1368
	help
1369
	  ARM processors cannot fetch/store information which is not
L
Linus Torvalds 已提交
1370 1371 1372 1373 1374 1375 1376
	  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.

1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392
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
1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413
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
1414 1415 1416 1417 1418 1419
	  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
1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439

	  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).

1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450
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
1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480
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
1481 1482 1483 1484 1485 1486
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
1487
	  but it is independent of the system firmware.   And like a reboot
R
Richard Purdie 已提交
1488 1489 1490 1491 1492 1493 1494
	  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.

1495 1496
config ATAGS_PROC
	bool "Export atags in procfs"
1497 1498
	depends on KEXEC
	default y
1499 1500 1501 1502
	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
1503 1504
endmenu

1505
menu "CPU Power Management"
L
Linus Torvalds 已提交
1506

1507
if ARCH_HAS_CPUFREQ
L
Linus Torvalds 已提交
1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527

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
1528 1529 1530 1531 1532 1533
config CPU_FREQ_PXA
	bool
	depends on CPU_FREQ && ARCH_PXA && PXA25x
	default y
	select CPU_FREQ_DEFAULT_GOV_USERSPACE

1534 1535 1536 1537
config CPU_FREQ_S3C64XX
	bool "CPUfreq support for Samsung S3C64XX CPUs"
	depends on CPU_FREQ && CPU_S3C6410

B
Ben Dooks 已提交
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 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577
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

1578 1579 1580 1581 1582 1583
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
1584 1585
endif

1586 1587 1588 1589
source "drivers/cpuidle/Kconfig"

endmenu

L
Linus Torvalds 已提交
1590 1591 1592 1593 1594 1595
menu "Floating point emulation"

comment "At least one emulation must be selected"

config FPE_NWFPE
	bool "NWFPE math emulation"
1596
	depends on !AEABI || OABI_COMPAT
L
Linus Torvalds 已提交
1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607
	---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"
1608
	depends on FPE_NWFPE
L
Linus Torvalds 已提交
1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619
	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)"
1620
	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
L
Linus Torvalds 已提交
1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633
	---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
1634
	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
L
Linus Torvalds 已提交
1635 1636 1637 1638 1639 1640 1641 1642 1643
	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.

1644 1645 1646 1647 1648
config VFPv3
	bool
	depends on VFP
	default y if CPU_V7

1649 1650 1651 1652 1653 1654 1655
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
1656 1657 1658 1659 1660 1661 1662 1663
endmenu

menu "Userspace binary formats"

source "fs/Kconfig.binfmt"

config ARTHUR
	tristate "RISC OS personality"
1664
	depends on !AEABI
L
Linus Torvalds 已提交
1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675
	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
1676
source "kernel/power/Kconfig"
L
Linus Torvalds 已提交
1677

J
Johannes Berg 已提交
1678 1679 1680
config ARCH_SUSPEND_POSSIBLE
	def_bool y

L
Linus Torvalds 已提交
1681 1682
endmenu

1683 1684
source "net/Kconfig"

1685
source "drivers/Kconfig"
L
Linus Torvalds 已提交
1686 1687 1688 1689 1690 1691 1692 1693 1694 1695

source "fs/Kconfig"

source "arch/arm/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"