Kconfig 53.4 KB
Newer Older
L
Linus Torvalds 已提交
1 2 3
config ARM
	bool
	default y
4
	select HAVE_AOUT
5
	select HAVE_DMA_API_DEBUG
A
Adrian Bunk 已提交
6
	select HAVE_IDE
R
Russell King 已提交
7
	select HAVE_MEMBLOCK
8
	select RTC_LIB
9
	select SYS_SUPPORTS_APM_EMULATION
10
	select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
11
	select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
J
Jason Wessel 已提交
12
	select HAVE_ARCH_KGDB
13
	select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
14
	select HAVE_KRETPROBES if (HAVE_KPROBES)
15
	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
16 17
	select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
	select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
18
	select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
19
	select HAVE_GENERIC_DMA_COHERENT
20 21
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_LZO
22
	select HAVE_KERNEL_LZMA
23
	select HAVE_IRQ_WORK
24 25
	select HAVE_PERF_EVENTS
	select PERF_USE_VMALLOC
26
	select HAVE_REGS_AND_STACK_ACCESS_API
27
	select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
28
	select HAVE_C_RECORDMCOUNT
29 30
	select HAVE_GENERIC_HARDIRQS
	select HAVE_SPARSE_IRQ
L
Linus Torvalds 已提交
31 32
	help
	  The ARM series is a line of low-power-consumption RISC chip designs
33
	  licensed by ARM Ltd and targeted at embedded applications and
L
Linus Torvalds 已提交
34
	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
35
	  manufactured, but legacy ARM-based PC hardware remains popular in
L
Linus Torvalds 已提交
36 37 38
	  Europe.  There is an ARM Linux project with a web page at
	  <http://www.arm.linux.org.uk/>.

R
Russell King 已提交
39 40 41
config HAVE_PWM
	bool

42 43 44
config MIGHT_HAVE_PCI
	bool

45 46 47
config SYS_SUPPORTS_APM_EMULATION
	bool

48 49 50
config HAVE_SCHED_CLOCK
	bool

D
David Brownell 已提交
51 52 53
config GENERIC_GPIO
	bool

54 55 56
config ARCH_USES_GETTIMEOFFSET
	bool
	default n
57

58 59 60
config GENERIC_CLOCKEVENTS
	bool

61 62 63
config GENERIC_CLOCKEVENTS_BROADCAST
	bool
	depends on GENERIC_CLOCKEVENTS
64
	default y if SMP
65

66 67 68 69
config HAVE_TCM
	bool
	select GENERIC_ALLOCATOR

70 71 72
config HAVE_PROC_CPU
	bool

A
Al Viro 已提交
73 74 75
config NO_IOPORT
	bool

L
Linus Torvalds 已提交
76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101
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.

102 103 104 105
config STACKTRACE_SUPPORT
	bool
	default y

N
Nicolas Pitre 已提交
106 107 108 109 110
config HAVE_LATENCYTOP_SUPPORT
	bool
	depends on !SMP
	default y

111 112 113 114
config LOCKDEP_SUPPORT
	bool
	default y

R
Russell King 已提交
115 116 117 118
config TRACE_IRQFLAGS_SUPPORT
	bool
	default y

119 120 121 122 123 124 125 126
config HARDIRQS_SW_RESEND
	bool
	default y

config GENERIC_IRQ_PROBE
	bool
	default y

N
Nick Piggin 已提交
127 128 129 130 131
config GENERIC_LOCKBREAK
	bool
	default y
	depends on SMP && PREEMPT

L
Linus Torvalds 已提交
132 133 134 135 136 137 138
config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

139 140 141 142 143 144
config ARCH_HAS_ILOG2_U32
	bool

config ARCH_HAS_ILOG2_U64
	bool

145 146 147 148 149 150 151
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.

152 153 154
config ARCH_HAS_CPU_IDLE_WAIT
       def_bool y

155 156 157 158
config GENERIC_HWEIGHT
	bool
	default y

L
Linus Torvalds 已提交
159 160 161 162
config GENERIC_CALIBRATE_DELAY
	bool
	default y

163 164 165
config ARCH_MAY_HAVE_PC_FDC
	bool

166 167 168
config ZONE_DMA
	bool

169 170 171
config NEED_DMA_MAP_STATE
       def_bool y

L
Linus Torvalds 已提交
172 173 174 175 176 177
config GENERIC_ISA_DMA
	bool

config FIQ
	bool

178 179 180
config ARCH_MTD_XIP
	bool

181 182 183 184 185
config ARM_L1_CACHE_SHIFT_6
	bool
	help
	  Setting ARM L1 cache line size to 64 Bytes.

186 187
config VECTORS_BASE
	hex
188
	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
189 190 191 192 193
	default DRAM_BASE if REMAP_VECTORS_TO_RAM
	default 0x00000000
	help
	  The base address of exception vectors.

L
Linus Torvalds 已提交
194 195
source "init/Kconfig"

196 197
source "kernel/Kconfig.freezer"

L
Linus Torvalds 已提交
198 199
menu "System Type"

200 201 202 203 204 205 206
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'.

207 208 209 210
#
# 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
211 212
choice
	prompt "ARM system type"
213
	default ARCH_VERSATILE
L
Linus Torvalds 已提交
214

215 216
config ARCH_AAEC2000
	bool "Agilent AAEC-2000 based"
217
	select CPU_ARM920T
218
	select ARM_AMBA
219
	select HAVE_CLK
220
	select ARCH_USES_GETTIMEOFFSET
221 222 223 224 225 226
	help
	  This enables support for systems based on the Agilent AAEC-2000

config ARCH_INTEGRATOR
	bool "ARM Ltd. Integrator family"
	select ARM_AMBA
227
	select ARCH_HAS_CPUFREQ
228
	select CLKDEV_LOOKUP
229
	select ICST
230
	select GENERIC_CLOCKEVENTS
231
	select PLAT_VERSATILE
232 233 234 235 236 237
	help
	  Support for ARM's Integrator platform.

config ARCH_REALVIEW
	bool "ARM Ltd. RealView family"
	select ARM_AMBA
238
	select CLKDEV_LOOKUP
239
	select HAVE_SCHED_CLOCK
240
	select ICST
241
	select GENERIC_CLOCKEVENTS
242
	select ARCH_WANT_OPTIONAL_GPIOLIB
243
	select PLAT_VERSATILE
244
	select ARM_TIMER_SP804
245
	select GPIO_PL061 if GPIOLIB
246 247 248 249 250 251 252
	help
	  This enables support for ARM Ltd RealView boards.

config ARCH_VERSATILE
	bool "ARM Ltd. Versatile family"
	select ARM_AMBA
	select ARM_VIC
253
	select CLKDEV_LOOKUP
254
	select HAVE_SCHED_CLOCK
255
	select ICST
256
	select GENERIC_CLOCKEVENTS
257
	select ARCH_WANT_OPTIONAL_GPIOLIB
258
	select PLAT_VERSATILE
259
	select ARM_TIMER_SP804
260 261 262
	help
	  This enables support for ARM Ltd Versatile board.

263 264 265 266 267
config ARCH_VEXPRESS
	bool "ARM Ltd. Versatile Express family"
	select ARCH_WANT_OPTIONAL_GPIOLIB
	select ARM_AMBA
	select ARM_TIMER_SP804
268
	select CLKDEV_LOOKUP
269 270
	select GENERIC_CLOCKEVENTS
	select HAVE_CLK
271
	select HAVE_SCHED_CLOCK
272 273 274 275 276
	select ICST
	select PLAT_VERSATILE
	help
	  This enables support for the ARM Ltd Versatile Express boards.

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

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

L
Linus Torvalds 已提交
296
config ARCH_CLPS711X
297
	bool "Cirrus Logic CLPS711x/EP721x-based"
298
	select CPU_ARM720T
299
	select ARCH_USES_GETTIMEOFFSET
300 301
	help
	  Support for Cirrus Logic 711x/721x based boards.
L
Linus Torvalds 已提交
302

303 304 305 306 307
config ARCH_CNS3XXX
	bool "Cavium Networks CNS3XXX family"
	select CPU_V6
	select GENERIC_CLOCKEVENTS
	select ARM_GIC
308
	select MIGHT_HAVE_PCI
309
	select PCI_DOMAINS if PCI
310 311 312
	help
	  Support for Cavium Networks CNS3XXX platform.

313 314 315 316
config ARCH_GEMINI
	bool "Cortina Systems Gemini"
	select CPU_FA526
	select ARCH_REQUIRE_GPIOLIB
317
	select ARCH_USES_GETTIMEOFFSET
318 319 320
	help
	  Support for the Cortina Systems Gemini family SoCs

L
Linus Torvalds 已提交
321 322
config ARCH_EBSA110
	bool "EBSA-110"
323
	select CPU_SA110
324
	select ISA
325
	select NO_IOPORT
326
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
327 328
	help
	  This is an evaluation board for the StrongARM processor available
329
	  from Digital. It has limited hardware on-board, including an
L
Linus Torvalds 已提交
330 331 332
	  Ethernet interface, two PCMCIA sockets, two serial ports and a
	  parallel port.

333 334
config ARCH_EP93XX
	bool "EP93xx-based"
335
	select CPU_ARM920T
336 337
	select ARM_AMBA
	select ARM_VIC
338
	select CLKDEV_LOOKUP
M
Michael Buesch 已提交
339
	select ARCH_REQUIRE_GPIOLIB
340
	select ARCH_HAS_HOLES_MEMORYMODEL
341
	select ARCH_USES_GETTIMEOFFSET
342 343 344
	help
	  This enables support for the Cirrus EP93xx series of CPUs.

L
Linus Torvalds 已提交
345 346
config ARCH_FOOTBRIDGE
	bool "FootBridge"
347
	select CPU_SA110
L
Linus Torvalds 已提交
348
	select FOOTBRIDGE
349
	select ARCH_USES_GETTIMEOFFSET
350 351 352
	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
353

354 355 356 357
config ARCH_MXC
	bool "Freescale MXC/iMX-based"
	select GENERIC_CLOCKEVENTS
	select ARCH_REQUIRE_GPIOLIB
358
	select CLKDEV_LOOKUP
359 360 361
	help
	  Support for Freescale MXC/iMX-based family of processors

362 363 364 365
config ARCH_MXS
	bool "Freescale MXS-based"
	select GENERIC_CLOCKEVENTS
	select ARCH_REQUIRE_GPIOLIB
366
	select CLKDEV_LOOKUP
367 368 369
	help
	  Support for Freescale MXS-based family of processors

370 371 372
config ARCH_STMP3XXX
	bool "Freescale STMP3xxx"
	select CPU_ARM926T
373
	select CLKDEV_LOOKUP
374 375 376 377 378 379
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_CLOCKEVENTS
	select USB_ARCH_HAS_EHCI
	help
	  Support for systems based on the Freescale 3xxx CPUs.

380 381
config ARCH_NETX
	bool "Hilscher NetX based"
382
	select CPU_ARM926T
383
	select ARM_VIC
384
	select GENERIC_CLOCKEVENTS
385
	help
386 387 388 389
	  This enables support for systems based on the Hilscher NetX Soc

config ARCH_H720X
	bool "Hynix HMS720x-based"
390
	select CPU_ARM720T
391
	select ISA_DMA_API
392
	select ARCH_USES_GETTIMEOFFSET
393 394 395
	help
	  This enables support for systems based on the Hynix HMS720x

396 397 398
config ARCH_IOP13XX
	bool "IOP13xx-based"
	depends on MMU
399
	select CPU_XSC3
400 401 402
	select PLAT_IOP
	select PCI
	select ARCH_SUPPORTS_MSI
403
	select VMSPLIT_1G
404 405 406
	help
	  Support for Intel's IOP13XX (XScale) family of processors.

407 408
config ARCH_IOP32X
	bool "IOP32x-based"
409
	depends on MMU
410
	select CPU_XSCALE
411
	select PLAT_IOP
412
	select PCI
413
	select ARCH_REQUIRE_GPIOLIB
414
	help
415 416 417 418 419 420
	  Support for Intel's 80219 and IOP32X (XScale) family of
	  processors.

config ARCH_IOP33X
	bool "IOP33x-based"
	depends on MMU
421
	select CPU_XSCALE
422
	select PLAT_IOP
423
	select PCI
424
	select ARCH_REQUIRE_GPIOLIB
425 426
	help
	  Support for Intel's IOP33X (XScale) family of processors.
L
Linus Torvalds 已提交
427

428 429
config ARCH_IXP23XX
 	bool "IXP23XX-based"
430
	depends on MMU
431
	select CPU_XSC3
432
 	select PCI
433
	select ARCH_USES_GETTIMEOFFSET
434
	help
435
	  Support for Intel's IXP23xx (XScale) family of processors.
L
Linus Torvalds 已提交
436 437 438

config ARCH_IXP2000
	bool "IXP2400/2800-based"
439
	depends on MMU
440
	select CPU_XSCALE
441
	select PCI
442
	select ARCH_USES_GETTIMEOFFSET
443 444
	help
	  Support for Intel's IXP2400/2800 (XScale) family of processors.
L
Linus Torvalds 已提交
445

446 447
config ARCH_IXP4XX
	bool "IXP4xx-based"
448
	depends on MMU
449
	select CPU_XSCALE
450
	select GENERIC_GPIO
451
	select GENERIC_CLOCKEVENTS
452
	select HAVE_SCHED_CLOCK
453
	select MIGHT_HAVE_PCI
R
Russell King 已提交
454
	select DMABOUNCE if PCI
455
	help
456
	  Support for Intel's IXP4XX (XScale) family of processors.
457

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

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

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

486 487 488 489 490 491 492
config ARCH_LPC32XX
	bool "NXP LPC32XX"
	select CPU_ARM926T
	select ARCH_REQUIRE_GPIOLIB
	select HAVE_IDE
	select ARM_AMBA
	select USB_ARCH_HAS_OHCI
493
	select CLKDEV_LOOKUP
494 495 496 497 498
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	help
	  Support for the NXP LPC32XX family of processors

499 500
config ARCH_MV78XX0
	bool "Marvell MV78xx0"
501
	select CPU_FEROCEON
502
	select PCI
503
	select ARCH_REQUIRE_GPIOLIB
504 505 506 507 508 509
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell MV78xx0 series SoCs:
	  MV781x0, MV782x0.

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

523
config ARCH_MMP
524
	bool "Marvell PXA168/910/MMP2"
525 526
	depends on MMU
	select ARCH_REQUIRE_GPIOLIB
527
	select CLKDEV_LOOKUP
528
	select GENERIC_CLOCKEVENTS
529
	select HAVE_SCHED_CLOCK
530 531
	select TICK_ONESHOT
	select PLAT_PXA
H
Haojian Zhuang 已提交
532
	select SPARSE_IRQ
533
	help
534
	  Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
535 536 537 538

config ARCH_KS8695
	bool "Micrel/Kendin KS8695"
	select CPU_ARM922T
539
	select ARCH_REQUIRE_GPIOLIB
540
	select ARCH_USES_GETTIMEOFFSET
541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559
	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
560
	select ARCH_REQUIRE_GPIOLIB
561
	select CLKDEV_LOOKUP
562
	select GENERIC_CLOCKEVENTS
563
	help
564 565 566 567 568 569 570
	  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>
571

572 573 574
config ARCH_NUC93X
	bool "Nuvoton NUC93X CPU"
	select CPU_ARM926T
575
	select CLKDEV_LOOKUP
576 577 578 579
	help
	  Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
	  low-power and high performance MPEG-4/JPEG multimedia controller chip.

580 581
config ARCH_TEGRA
	bool "NVIDIA Tegra"
R
Russell King 已提交
582
	select CLKDEV_LOOKUP
583 584 585 586
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select GENERIC_GPIO
	select HAVE_CLK
587
	select HAVE_SCHED_CLOCK
588
	select ARCH_HAS_BARRIERS if CACHE_L2X0
C
Colin Cross 已提交
589
	select ARCH_HAS_CPUFREQ
590 591 592 593
	help
	  This enables support for NVIDIA Tegra based systems (Tegra APX,
	  Tegra 6xx and Tegra 2 series).

594 595
config ARCH_PNX4008
	bool "Philips Nexperia PNX4008 Mobile"
596
	select CPU_ARM926T
597
	select CLKDEV_LOOKUP
598
	select ARCH_USES_GETTIMEOFFSET
599 600 601
	help
	  This enables support for Philips PNX4008 mobile platform.

L
Linus Torvalds 已提交
602
config ARCH_PXA
E
eric miao 已提交
603
	bool "PXA2xx/PXA3xx-based"
604
	depends on MMU
605
	select ARCH_MTD_XIP
606
	select ARCH_HAS_CPUFREQ
607
	select CLKDEV_LOOKUP
M
Michael Buesch 已提交
608
	select ARCH_REQUIRE_GPIOLIB
609
	select GENERIC_CLOCKEVENTS
610
	select HAVE_SCHED_CLOCK
611
	select TICK_ONESHOT
612
	select PLAT_PXA
613
	select SPARSE_IRQ
614
	help
E
eric miao 已提交
615
	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
L
Linus Torvalds 已提交
616

617 618
config ARCH_MSM
	bool "Qualcomm MSM"
619
	select HAVE_CLK
620
	select GENERIC_CLOCKEVENTS
P
Pavel Machek 已提交
621
	select ARCH_REQUIRE_GPIOLIB
622
	help
623 624 625 626 627
	  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).
628

629
config ARCH_SHMOBILE
630 631
	bool "Renesas SH-Mobile / R-Mobile"
	select HAVE_CLK
P
Paul Mundt 已提交
632
	select CLKDEV_LOOKUP
633 634 635
	select GENERIC_CLOCKEVENTS
	select NO_IOPORT
	select SPARSE_IRQ
636
	select MULTI_IRQ_HANDLER
637
	help
638
	  Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
639

L
Linus Torvalds 已提交
640 641 642 643 644
config ARCH_RPC
	bool "RiscPC"
	select ARCH_ACORN
	select FIQ
	select TIMER_ACORN
645
	select ARCH_MAY_HAVE_PC_FDC
646
	select HAVE_PATA_PLATFORM
647
	select ISA_DMA_API
A
Al Viro 已提交
648
	select NO_IOPORT
649
	select ARCH_SPARSEMEM_ENABLE
650
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
651 652 653 654 655 656
	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"
657
	select CPU_SA1100
658
	select ISA
659
	select ARCH_SPARSEMEM_ENABLE
660
	select ARCH_MTD_XIP
661
	select ARCH_HAS_CPUFREQ
R
Russell King 已提交
662
	select CPU_FREQ
663
	select GENERIC_CLOCKEVENTS
664
	select HAVE_CLK
665
	select HAVE_SCHED_CLOCK
666
	select TICK_ONESHOT
M
Michael Buesch 已提交
667
	select ARCH_REQUIRE_GPIOLIB
668 669
	help
	  Support for StrongARM 11x0 based boards.
L
Linus Torvalds 已提交
670 671

config ARCH_S3C2410
672
	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
D
David Brownell 已提交
673
	select GENERIC_GPIO
B
Ben Dooks 已提交
674
	select ARCH_HAS_CPUFREQ
675
	select HAVE_CLK
676
	select ARCH_USES_GETTIMEOFFSET
677
	select HAVE_S3C2410_I2C if I2C
L
Linus Torvalds 已提交
678 679 680
	help
	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
681
	  the Samsung SMDK2410 development board (and derivatives).
L
Linus Torvalds 已提交
682

683 684 685 686
	  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
687 688
config ARCH_S3C64XX
	bool "Samsung S3C64XX"
689
	select PLAT_SAMSUNG
690 691
	select CPU_V6
	select ARM_VIC
B
Ben Dooks 已提交
692
	select HAVE_CLK
693
	select NO_IOPORT
694
	select ARCH_USES_GETTIMEOFFSET
695
	select ARCH_HAS_CPUFREQ
696 697 698 699 700 701 702 703 704 705 706
	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
707
	select HAVE_S3C2410_I2C if I2C
708
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
B
Ben Dooks 已提交
709 710 711
	help
	  Samsung S3C64XX series based systems

712 713
config ARCH_S5P64X0
	bool "Samsung S5P6440 S5P6450"
714 715 716
	select CPU_V6
	select GENERIC_GPIO
	select HAVE_CLK
717
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
718
	select ARCH_USES_GETTIMEOFFSET
719
	select HAVE_S3C2410_I2C if I2C
720
	select HAVE_S3C_RTC if RTC_CLASS
721
	help
722 723
	  Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
	  SMDK6450.
724

725 726 727 728 729
config ARCH_S5P6442
	bool "Samsung S5P6442"
	select CPU_V6
	select GENERIC_GPIO
	select HAVE_CLK
730
	select ARCH_USES_GETTIMEOFFSET
731
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
732 733 734
	help
	  Samsung S5P6442 CPU based systems

735 736
config ARCH_S5PC100
	bool "Samsung S5PC100"
737 738 739
	select GENERIC_GPIO
	select HAVE_CLK
	select CPU_V7
740
	select ARM_L1_CACHE_SHIFT_6
741
	select ARCH_USES_GETTIMEOFFSET
742
	select HAVE_S3C2410_I2C if I2C
743
	select HAVE_S3C_RTC if RTC_CLASS
744
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
745
	help
746
	  Samsung S5PC100 series based systems
747

748 749 750
config ARCH_S5PV210
	bool "Samsung S5PV210/S5PC110"
	select CPU_V7
751
	select ARCH_SPARSEMEM_ENABLE
752 753 754
	select GENERIC_GPIO
	select HAVE_CLK
	select ARM_L1_CACHE_SHIFT_6
755
	select ARCH_HAS_CPUFREQ
756
	select ARCH_USES_GETTIMEOFFSET
757
	select HAVE_S3C2410_I2C if I2C
758
	select HAVE_S3C_RTC if RTC_CLASS
759
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
760 761 762
	help
	  Samsung S5PV210/S5PC110 series based systems

763 764
config ARCH_EXYNOS4
	bool "Samsung EXYNOS4"
765
	select CPU_V7
766
	select ARCH_SPARSEMEM_ENABLE
767 768
	select GENERIC_GPIO
	select HAVE_CLK
769
	select ARCH_HAS_CPUFREQ
770
	select GENERIC_CLOCKEVENTS
771
	select HAVE_S3C_RTC if RTC_CLASS
772
	select HAVE_S3C2410_I2C if I2C
773
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
774
	help
775
	  Samsung EXYNOS4 series based systems
776

L
Linus Torvalds 已提交
777 778
config ARCH_SHARK
	bool "Shark"
779
	select CPU_SA110
780 781
	select ISA
	select ISA_DMA
782
	select ZONE_DMA
783
	select PCI
784
	select ARCH_USES_GETTIMEOFFSET
785 786 787
	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
788

H
Hans J. Koch 已提交
789 790 791 792
config ARCH_TCC_926
	bool "Telechips TCC ARM926-based systems"
	select CPU_ARM926T
	select HAVE_CLK
793
	select CLKDEV_LOOKUP
H
Hans J. Koch 已提交
794 795 796 797
	select GENERIC_CLOCKEVENTS
	help
	  Support for Telechips TCC ARM926-based systems.

L
Linus Torvalds 已提交
798 799
config ARCH_LH7A40X
	bool "Sharp LH7A40X"
800
	select CPU_ARM922T
801
	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
802
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
803 804 805 806 807 808
	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.

809 810 811 812
config ARCH_U300
	bool "ST-Ericsson U300 Series"
	depends on MMU
	select CPU_ARM926T
813
	select HAVE_SCHED_CLOCK
814
	select HAVE_TCM
815 816 817
	select ARM_AMBA
	select ARM_VIC
	select GENERIC_CLOCKEVENTS
818
	select CLKDEV_LOOKUP
819 820 821 822
	select GENERIC_GPIO
	help
	  Support for ST-Ericsson U300 series mobile platforms.

823 824 825 826 827
config ARCH_U8500
	bool "ST-Ericsson U8500 Series"
	select CPU_V7
	select ARM_AMBA
	select GENERIC_CLOCKEVENTS
828
	select CLKDEV_LOOKUP
829
	select ARCH_REQUIRE_GPIOLIB
830
	select ARCH_HAS_CPUFREQ
831 832 833 834 835 836 837 838
	help
	  Support for ST-Ericsson's Ux500 architecture

config ARCH_NOMADIK
	bool "STMicroelectronics Nomadik"
	select ARM_AMBA
	select ARM_VIC
	select CPU_ARM926T
839
	select CLKDEV_LOOKUP
840 841 842 843 844
	select GENERIC_CLOCKEVENTS
	select ARCH_REQUIRE_GPIOLIB
	help
	  Support for the Nomadik platform by ST-Ericsson

845 846 847
config ARCH_DAVINCI
	bool "TI DaVinci"
	select GENERIC_CLOCKEVENTS
848
	select ARCH_REQUIRE_GPIOLIB
849
	select ZONE_DMA
850
	select HAVE_IDE
851
	select CLKDEV_LOOKUP
D
David Brownell 已提交
852
	select GENERIC_ALLOCATOR
853
	select ARCH_HAS_HOLES_MEMORYMODEL
854 855 856
	help
	  Support for TI's DaVinci platform.

857 858
config ARCH_OMAP
	bool "TI OMAP"
859
	select HAVE_CLK
M
Michael Buesch 已提交
860
	select ARCH_REQUIRE_GPIOLIB
861
	select ARCH_HAS_CPUFREQ
862
	select GENERIC_CLOCKEVENTS
863
	select HAVE_SCHED_CLOCK
864
	select ARCH_HAS_HOLES_MEMORYMODEL
865
	help
866
	  Support for TI's OMAP platform (OMAP1/2/3/4).
867

868 869 870 871
config PLAT_SPEAR
	bool "ST SPEAr"
	select ARM_AMBA
	select ARCH_REQUIRE_GPIOLIB
872
	select CLKDEV_LOOKUP
873 874 875 876 877
	select GENERIC_CLOCKEVENTS
	select HAVE_CLK
	help
	  Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).

L
Linus Torvalds 已提交
878 879
endchoice

880 881 882 883 884
#
# 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.
#
885 886 887 888 889 890
source "arch/arm/mach-aaec2000/Kconfig"

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

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

L
Linus Torvalds 已提交
891 892
source "arch/arm/mach-clps711x/Kconfig"

893 894
source "arch/arm/mach-cns3xxx/Kconfig"

895 896 897 898
source "arch/arm/mach-davinci/Kconfig"

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

899 900
source "arch/arm/mach-ep93xx/Kconfig"

L
Linus Torvalds 已提交
901 902
source "arch/arm/mach-footbridge/Kconfig"

903 904
source "arch/arm/mach-gemini/Kconfig"

905 906
source "arch/arm/mach-h720x/Kconfig"

L
Linus Torvalds 已提交
907 908
source "arch/arm/mach-integrator/Kconfig"

909 910 911
source "arch/arm/mach-iop32x/Kconfig"

source "arch/arm/mach-iop33x/Kconfig"
L
Linus Torvalds 已提交
912

913 914
source "arch/arm/mach-iop13xx/Kconfig"

L
Linus Torvalds 已提交
915 916 917 918
source "arch/arm/mach-ixp4xx/Kconfig"

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

919 920
source "arch/arm/mach-ixp23xx/Kconfig"

921 922 923 924 925 926
source "arch/arm/mach-kirkwood/Kconfig"

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

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

927 928
source "arch/arm/mach-loki/Kconfig"

929 930
source "arch/arm/mach-lpc32xx/Kconfig"

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

933 934
source "arch/arm/mach-mv78xx0/Kconfig"

935
source "arch/arm/plat-mxc/Kconfig"
L
Linus Torvalds 已提交
936

937 938
source "arch/arm/mach-mxs/Kconfig"

939
source "arch/arm/mach-netx/Kconfig"
940

941 942 943 944
source "arch/arm/mach-nomadik/Kconfig"
source "arch/arm/plat-nomadik/Kconfig"

source "arch/arm/mach-ns9xxx/Kconfig"
L
Linus Torvalds 已提交
945

R
Russell King 已提交
946
source "arch/arm/mach-nuc93x/Kconfig"
L
Linus Torvalds 已提交
947

948 949 950
source "arch/arm/plat-omap/Kconfig"

source "arch/arm/mach-omap1/Kconfig"
L
Linus Torvalds 已提交
951

952 953
source "arch/arm/mach-omap2/Kconfig"

954
source "arch/arm/mach-orion5x/Kconfig"
955

956 957
source "arch/arm/mach-pxa/Kconfig"
source "arch/arm/plat-pxa/Kconfig"
958

959 960 961 962 963
source "arch/arm/mach-mmp/Kconfig"

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

source "arch/arm/mach-sa1100/Kconfig"
964

965
source "arch/arm/plat-samsung/Kconfig"
966
source "arch/arm/plat-s3c24xx/Kconfig"
967
source "arch/arm/plat-s5p/Kconfig"
968

969
source "arch/arm/plat-spear/Kconfig"
970

H
Hans J. Koch 已提交
971 972
source "arch/arm/plat-tcc/Kconfig"

973 974
if ARCH_S3C2410
source "arch/arm/mach-s3c2400/Kconfig"
L
Linus Torvalds 已提交
975
source "arch/arm/mach-s3c2410/Kconfig"
976
source "arch/arm/mach-s3c2412/Kconfig"
Y
Yauhen Kharuzhy 已提交
977
source "arch/arm/mach-s3c2416/Kconfig"
978
source "arch/arm/mach-s3c2440/Kconfig"
979
source "arch/arm/mach-s3c2443/Kconfig"
980
endif
L
Linus Torvalds 已提交
981

B
Ben Dooks 已提交
982
if ARCH_S3C64XX
983
source "arch/arm/mach-s3c64xx/Kconfig"
B
Ben Dooks 已提交
984 985
endif

986
source "arch/arm/mach-s5p64x0/Kconfig"
987

988
source "arch/arm/mach-s5p6442/Kconfig"
989

990 991
source "arch/arm/mach-s5pc100/Kconfig"

992 993
source "arch/arm/mach-s5pv210/Kconfig"

994
source "arch/arm/mach-exynos4/Kconfig"
995

996
source "arch/arm/mach-shmobile/Kconfig"
997

998
source "arch/arm/plat-stmp3xxx/Kconfig"
999

1000 1001
source "arch/arm/mach-tegra/Kconfig"

1002
source "arch/arm/mach-u300/Kconfig"
L
Linus Torvalds 已提交
1003

1004
source "arch/arm/mach-ux500/Kconfig"
L
Linus Torvalds 已提交
1005 1006 1007

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

1008 1009
source "arch/arm/mach-vexpress/Kconfig"

1010 1011
source "arch/arm/mach-w90x900/Kconfig"

L
Linus Torvalds 已提交
1012 1013 1014 1015
# Definitions to make life easier
config ARCH_ACORN
	bool

1016 1017
config PLAT_IOP
	bool
M
Mikael Pettersson 已提交
1018
	select GENERIC_CLOCKEVENTS
1019
	select HAVE_SCHED_CLOCK
1020

L
Lennert Buytenhek 已提交
1021 1022
config PLAT_ORION
	bool
1023
	select HAVE_SCHED_CLOCK
L
Lennert Buytenhek 已提交
1024

1025 1026 1027
config PLAT_PXA
	bool

1028 1029 1030
config PLAT_VERSATILE
	bool

1031 1032 1033
config ARM_TIMER_SP804
	bool

L
Linus Torvalds 已提交
1034 1035
source arch/arm/mm/Kconfig

1036 1037
config IWMMXT
	bool "Enable iWMMXt support"
1038 1039
	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
	default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
1040 1041 1042 1043
	help
	  Enable support for iWMMXt context switching at run time if
	  running on a CPU that supports it.

L
Linus Torvalds 已提交
1044 1045 1046 1047 1048 1049
#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
config XSCALE_PMU
	bool
	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
	default y

1050
config CPU_HAS_PMU
1051 1052
	depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
		   (!ARCH_OMAP3 || OMAP3_EMU)
1053 1054 1055
	default y
	bool

1056 1057 1058 1059 1060
config MULTI_IRQ_HANDLER
	bool
	help
	  Allow each machine to specify it's own IRQ handler at run time.

1061 1062 1063 1064
if !MMU
source "arch/arm/Kconfig-nommu"
endif

1065 1066
config ARM_ERRATA_411920
	bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
1067
	depends on CPU_V6
1068 1069 1070 1071 1072 1073
	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.

1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089
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.

1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102
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.

1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114
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.

1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126
config ARM_ERRATA_742230
	bool "ARM errata: DMB operation may be faulty"
	depends on CPU_V7 && SMP
	help
	  This option enables the workaround for the 742230 Cortex-A9
	  (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
	  between two write operations may not ensure the correct visibility
	  ordering of the two writes. This workaround sets a specific bit in
	  the diagnostic register of the Cortex-A9 which causes the DMB
	  instruction to behave as a DSB, ensuring the correct behaviour of
	  the two writes.

1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140
config ARM_ERRATA_742231
	bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
	depends on CPU_V7 && SMP
	help
	  This option enables the workaround for the 742231 Cortex-A9
	  (r2p0..r2p2) erratum. Under certain conditions, specific to the
	  Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
	  accessing some data located in the same cache line, may get corrupted
	  data due to bad handling of the address hazard when the line gets
	  replaced from one of the CPUs at the same time as another CPU is
	  accessing it. This workaround sets specific bits in the diagnostic
	  register of the Cortex-A9 which reduces the linefill issuing
	  capabilities of the processor.

1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153
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.
1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165

config ARM_ERRATA_720789
	bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
	depends on CPU_V7 && SMP
	help
	  This option enables the workaround for the 720789 Cortex-A9 (prior to
	  r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
	  broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
	  As a consequence of this erratum, some TLB entries which should be
	  invalidated are not, resulting in an incoherency in the system page
	  tables. The workaround changes the TLB flushing routines to invalidate
	  entries regardless of the ASID.
1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179

config ARM_ERRATA_743622
	bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
	depends on CPU_V7
	help
	  This option enables the workaround for the 743622 Cortex-A9
	  (r2p0..r2p2) erratum. Under very rare conditions, a faulty
	  optimisation in the Cortex-A9 Store Buffer may lead to data
	  corruption. This workaround sets a specific bit in the diagnostic
	  register of the Cortex-A9 which disables the Store Buffer
	  optimisation, preventing the defect from occurring. This has no
	  visible impact on the overall performance or power consumption of the
	  processor.

1180 1181 1182 1183 1184 1185 1186 1187 1188 1189
config ARM_ERRATA_751472
	bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
	depends on CPU_V7 && SMP
	help
	  This option enables the workaround for the 751472 Cortex-A9 (prior
	  to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
	  completion of a following broadcasted operation if the second
	  operation is received by a CPU before the ICIALLUIS has completed,
	  potentially leading to corrupted entries in the cache or TLB.

1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204
config ARM_ERRATA_753970
	bool "ARM errata: cache sync operation may be faulty"
	depends on CACHE_PL310
	help
	  This option enables the workaround for the 753970 PL310 (r3p0) erratum.

	  Under some condition the effect of cache sync operation on
	  the store buffer still remains when the operation completes.
	  This means that the store buffer is always asked to drain and
	  this prevents it from merging any further writes. The workaround
	  is to replace the normal offset of cache sync operation (0x730)
	  by another offset targeting an unmapped PL310 register 0x740.
	  This has the same effect as the cache sync operation: store buffer
	  drain and waiting for all buffers empty.

L
Linus Torvalds 已提交
1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222
endmenu

source "arch/arm/common/Kconfig"

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.

1223
# Select ISA DMA controller support
L
Linus Torvalds 已提交
1224 1225
config ISA_DMA
	bool
1226
	select ISA_DMA_API
L
Linus Torvalds 已提交
1227

1228
# Select ISA DMA interface
A
Al Viro 已提交
1229 1230 1231
config ISA_DMA_API
	bool

L
Linus Torvalds 已提交
1232
config PCI
1233
	bool "PCI support" if MIGHT_HAVE_PCI
L
Linus Torvalds 已提交
1234 1235 1236 1237 1238 1239
	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.

1240 1241 1242 1243
config PCI_DOMAINS
	bool
	depends on PCI

1244 1245 1246 1247 1248 1249
config PCI_NANOENGINE
	bool "BSE nanoEngine PCI support"
	depends on SA1100_NANOENGINE
	help
	  Enable PCI on the BSE nanoEngine board.

1250 1251 1252
config PCI_SYSCALL
	def_bool PCI

L
Linus Torvalds 已提交
1253 1254 1255 1256 1257 1258
# Select the host bridge type
config PCI_HOST_VIA82C505
	bool
	depends on PCI && ARCH_SHARK
	default y

M
Mike Rapoport 已提交
1259 1260 1261 1262 1263 1264
config PCI_HOST_ITE8152
	bool
	depends on PCI && MACH_ARMCORE
	default y
	select DMABOUNCE

L
Linus Torvalds 已提交
1265 1266 1267 1268 1269 1270 1271 1272
source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

endmenu

menu "Kernel Features"

1273 1274
source "kernel/time/Kconfig"

L
Linus Torvalds 已提交
1275 1276
config SMP
	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
1277
	depends on EXPERIMENTAL
1278
	depends on GENERIC_CLOCKEVENTS
1279
	depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
1280
		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1281
		 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
1282
		 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
1283
	select USE_GENERIC_SMP_HELPERS
1284
	select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
L
Linus Torvalds 已提交
1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295
	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
1296
	  See also <file:Documentation/i386/IO-APIC.txt>,
L
Linus Torvalds 已提交
1297
	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1298
	  <http://tldp.org/HOWTO/SMP-HOWTO.html>.
L
Linus Torvalds 已提交
1299 1300 1301

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

1302 1303 1304
config SMP_ON_UP
	bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
	depends on EXPERIMENTAL
1305
	depends on SMP && !XIP_KERNEL
1306 1307 1308 1309 1310 1311 1312 1313 1314
	default y
	help
	  SMP kernels contain instructions which fail on non-SMP processors.
	  Enabling this option allows the kernel to modify itself to make
	  these instructions safe.  Disabling it allows about 1K of space
	  savings.

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

1315 1316 1317 1318 1319 1320
config HAVE_ARM_SCU
	bool
	depends on SMP
	help
	  This option enables support for the ARM system coherency unit

1321 1322 1323
config HAVE_ARM_TWD
	bool
	depends on SMP
R
Russell King 已提交
1324
	select TICK_ONESHOT
1325 1326 1327
	help
	  This options enables support for the ARM timer and watchdog unit

1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350
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
1351 1352 1353 1354 1355 1356
config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
	default "4"

1357 1358 1359
config HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
	depends on SMP && HOTPLUG && EXPERIMENTAL
1360
	depends on !ARCH_MSM
1361 1362 1363 1364
	help
	  Say Y here to experiment with turning CPUs off and on.  CPUs
	  can be controlled through /sys/devices/system/cpu.

1365 1366
config LOCAL_TIMERS
	bool "Use local timer interrupts"
1367
	depends on SMP
1368
	default y
1369
	select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
1370 1371 1372 1373 1374 1375
	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.

1376
source kernel/Kconfig.preempt
L
Linus Torvalds 已提交
1377

1378 1379
config HZ
	int
1380
	default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
1381
		ARCH_S5P6442 || ARCH_S5PV210 || ARCH_EXYNOS4
1382
	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
1383
	default AT91_TIMER_HZ if ARCH_AT91
1384
	default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
1385 1386
	default 100

1387
config THUMB2_KERNEL
1388
	bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
1389
	depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
1390 1391 1392 1393 1394 1395 1396 1397 1398
	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.

1399 1400 1401
config ARM_ASM_UNIFIED
	bool

1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416
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.

1417
config OABI_COMPAT
1418
	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
1419
	depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433
	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.

1434
config ARCH_HAS_HOLES_MEMORYMODEL
1435 1436
	bool

1437 1438 1439
config ARCH_SPARSEMEM_ENABLE
	bool

1440 1441 1442
config ARCH_SPARSEMEM_DEFAULT
	def_bool ARCH_SPARSEMEM_ENABLE

1443
config ARCH_SELECT_MEMORY_MODEL
R
Russell King 已提交
1444
	def_bool ARCH_SPARSEMEM_ENABLE
Y
Yasunori Goto 已提交
1445

N
Nicolas Pitre 已提交
1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462
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
1463 1464 1465 1466 1467
config HIGHPTE
	bool "Allocate 2nd-level pagetables from highmem"
	depends on HIGHMEM
	depends on !OUTER_CACHE

1468 1469
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
1470
	depends on PERF_EVENTS && CPU_HAS_PMU
1471 1472 1473 1474 1475
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

1476 1477
source "mm/Kconfig"

1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493
config FORCE_MAX_ZONEORDER
	int "Maximum zone order" if ARCH_SHMOBILE
	range 11 64 if ARCH_SHMOBILE
	default "9" if SA1111
	default "11"
	help
	  The kernel memory allocator divides physically contiguous memory
	  blocks into "zones", where each zone is a power of two number of
	  pages.  This option selects the largest power of two that the kernel
	  keeps in the memory allocator.  If you need to allocate very large
	  blocks of physically contiguous memory, then you may need to
	  increase this value.

	  This config option is actually maximum order plus one. For example,
	  a value of 11 means that the largest free memory block is 2^10 pages.

L
Linus Torvalds 已提交
1494 1495
config LEDS
	bool "Timer and CPU usage LEDs"
1496
	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
1497
		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
L
Linus Torvalds 已提交
1498 1499
		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
1500
		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
1501
		   ARCH_AT91 || ARCH_DAVINCI || \
1502
		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
L
Linus Torvalds 已提交
1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515
	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
1516 1517
			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			    || MACH_OMAP_PERSEUS2
L
Linus Torvalds 已提交
1518
	depends on LEDS
1519
	depends on !GENERIC_CLOCKEVENTS
L
Linus Torvalds 已提交
1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533
	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
1534 1535 1536
			!ARCH_OMAP) \
			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			|| MACH_OMAP_PERSEUS2
L
Linus Torvalds 已提交
1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548
	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
1549
	depends on CPU_CP15_MMU
L
Linus Torvalds 已提交
1550
	default y if !ARCH_EBSA110
1551
	select HAVE_PROC_CPU if PROC_FS
L
Linus Torvalds 已提交
1552
	help
1553
	  ARM processors cannot fetch/store information which is not
L
Linus Torvalds 已提交
1554 1555 1556 1557 1558 1559 1560
	  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.

1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576
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.

N
Nicolas Pitre 已提交
1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590
config SECCOMP
	bool
	prompt "Enable seccomp to safely compute untrusted bytecode"
	---help---
	  This kernel feature is useful for number crunching applications
	  that may need to compute untrusted bytecode during their
	  execution. By using pipes or other transports made available to
	  the process as file descriptors supporting the read/write
	  syscalls, it's possible to isolate those applications in
	  their own address space using seccomp. Once seccomp is
	  enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
	  and the task is only allowed to execute a few safe syscalls
	  defined by each seccomp mode.

1591 1592
config CC_STACKPROTECTOR
	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1593
	depends on EXPERIMENTAL
1594 1595 1596 1597 1598 1599 1600 1601 1602 1603
	help
	  This option turns on the -fstack-protector GCC feature. This
	  feature puts, at the beginning of functions, a canary value on
	  the stack just before the return address, and validates
	  the value just before actually returning.  Stack based buffer
	  overflows (that need to overwrite this return address) now also
	  overwrite the canary, which gets detected and the attack is then
	  neutralized via a kernel panic.
	  This feature requires gcc version 4.2 or above.

1604 1605 1606 1607 1608 1609
config DEPRECATED_PARAM_STRUCT
	bool "Provide old way to pass kernel parameters"
	help
	  This was deprecated in 2001 and announced to live on for 5 years.
	  Some old boot loaders still use this way.

L
Linus Torvalds 已提交
1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630
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
1631 1632 1633 1634 1635 1636
	  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
1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656

	  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).

1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667
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
1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697
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
1698 1699 1700 1701 1702 1703
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
1704
	  but it is independent of the system firmware.   And like a reboot
R
Richard Purdie 已提交
1705 1706 1707 1708 1709 1710 1711
	  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.

1712 1713
config ATAGS_PROC
	bool "Export atags in procfs"
1714 1715
	depends on KEXEC
	default y
1716 1717 1718 1719
	help
	  Should the atags used to boot the kernel be exported in an "atags"
	  file in procfs. Useful with kexec.

1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732
config CRASH_DUMP
	bool "Build kdump crash kernel (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	help
	  Generate crash dump after being started by kexec. This should
	  be normally only set in special crash dump kernels which are
	  loaded in the main kernel with kexec-tools into a specially
	  reserved region and then later executed after a crash by
	  kdump/kexec. The crash dump kernel must be compiled to a
	  memory address not used by the main kernel

	  For more details see Documentation/kdump/kdump.txt

1733 1734 1735 1736 1737 1738 1739 1740 1741 1742
config AUTO_ZRELADDR
	bool "Auto calculation of the decompressed kernel image address"
	depends on !ZBOOT_ROM && !ARCH_U300
	help
	  ZRELADDR is the physical address where the decompressed kernel
	  image will be placed. If AUTO_ZRELADDR is selected, the address
	  will be determined at run-time by masking the current IP with
	  0xf8000000. This assumes the zImage being placed in the first 128MB
	  from start of memory.

L
Linus Torvalds 已提交
1743 1744
endmenu

1745
menu "CPU Power Management"
L
Linus Torvalds 已提交
1746

1747
if ARCH_HAS_CPUFREQ
L
Linus Torvalds 已提交
1748 1749 1750

source "drivers/cpufreq/Kconfig"

Y
Yong Shen 已提交
1751 1752 1753 1754 1755 1756
config CPU_FREQ_IMX
	tristate "CPUfreq driver for i.MX CPUs"
	depends on ARCH_MXC && CPU_FREQ
	help
	  This enables the CPUfreq driver for i.MX CPUs.

L
Linus Torvalds 已提交
1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773
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
1774 1775 1776 1777 1778 1779
config CPU_FREQ_PXA
	bool
	depends on CPU_FREQ && ARCH_PXA && PXA25x
	default y
	select CPU_FREQ_DEFAULT_GOV_USERSPACE

1780 1781 1782 1783
config CPU_FREQ_S3C64XX
	bool "CPUfreq support for Samsung S3C64XX CPUs"
	depends on CPU_FREQ && CPU_S3C6410

B
Ben Dooks 已提交
1784 1785 1786 1787 1788 1789
config CPU_FREQ_S3C
	bool
	help
	  Internal configuration node for common cpufreq on Samsung SoC

config CPU_FREQ_S3C24XX
1790
	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
B
Ben Dooks 已提交
1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801
	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
1802
	bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
B
Ben Dooks 已提交
1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823
	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

1824 1825 1826 1827 1828 1829
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
1830 1831
endif

1832 1833 1834 1835
source "drivers/cpuidle/Kconfig"

endmenu

L
Linus Torvalds 已提交
1836 1837 1838 1839 1840 1841
menu "Floating point emulation"

comment "At least one emulation must be selected"

config FPE_NWFPE
	bool "NWFPE math emulation"
1842
	depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
L
Linus Torvalds 已提交
1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853
	---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"
1854
	depends on FPE_NWFPE
L
Linus Torvalds 已提交
1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865
	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)"
1866
	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
L
Linus Torvalds 已提交
1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879
	---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
1880
	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
L
Linus Torvalds 已提交
1881 1882 1883 1884 1885 1886 1887 1888 1889
	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.

1890 1891 1892 1893 1894
config VFPv3
	bool
	depends on VFP
	default y if CPU_V7

1895 1896 1897 1898 1899 1900 1901
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
1902 1903 1904 1905 1906 1907 1908 1909
endmenu

menu "Userspace binary formats"

source "fs/Kconfig.binfmt"

config ARTHUR
	tristate "RISC OS personality"
1910
	depends on !AEABI
L
Linus Torvalds 已提交
1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921
	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
1922
source "kernel/power/Kconfig"
L
Linus Torvalds 已提交
1923

J
Johannes Berg 已提交
1924 1925 1926
config ARCH_SUSPEND_POSSIBLE
	def_bool y

L
Linus Torvalds 已提交
1927 1928
endmenu

1929 1930
source "net/Kconfig"

1931
source "drivers/Kconfig"
L
Linus Torvalds 已提交
1932 1933 1934 1935 1936 1937 1938 1939 1940 1941

source "fs/Kconfig"

source "arch/arm/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"