Kconfig 52.6 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
L
Linus Torvalds 已提交
29 30
	help
	  The ARM series is a line of low-power-consumption RISC chip designs
31
	  licensed by ARM Ltd and targeted at embedded applications and
L
Linus Torvalds 已提交
32
	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
33
	  manufactured, but legacy ARM-based PC hardware remains popular in
L
Linus Torvalds 已提交
34 35 36
	  Europe.  There is an ARM Linux project with a web page at
	  <http://www.arm.linux.org.uk/>.

R
Russell King 已提交
37 38 39
config HAVE_PWM
	bool

40 41 42
config MIGHT_HAVE_PCI
	bool

43 44 45
config SYS_SUPPORTS_APM_EMULATION
	bool

46 47 48
config HAVE_SCHED_CLOCK
	bool

D
David Brownell 已提交
49 50 51
config GENERIC_GPIO
	bool

52 53 54
config ARCH_USES_GETTIMEOFFSET
	bool
	default n
55

56 57 58
config GENERIC_CLOCKEVENTS
	bool

59 60 61
config GENERIC_CLOCKEVENTS_BROADCAST
	bool
	depends on GENERIC_CLOCKEVENTS
62
	default y if SMP
63

64 65 66 67
config HAVE_TCM
	bool
	select GENERIC_ALLOCATOR

68 69 70
config HAVE_PROC_CPU
	bool

A
Al Viro 已提交
71 72 73
config NO_IOPORT
	bool

L
Linus Torvalds 已提交
74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
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.

100 101 102 103
config GENERIC_HARDIRQS
	bool
	default y

104 105 106 107
config STACKTRACE_SUPPORT
	bool
	default y

N
Nicolas Pitre 已提交
108 109 110 111 112
config HAVE_LATENCYTOP_SUPPORT
	bool
	depends on !SMP
	default y

113 114 115 116
config LOCKDEP_SUPPORT
	bool
	default y

R
Russell King 已提交
117 118 119 120
config TRACE_IRQFLAGS_SUPPORT
	bool
	default y

121 122 123 124 125 126 127 128
config HARDIRQS_SW_RESEND
	bool
	default y

config GENERIC_IRQ_PROBE
	bool
	default y

N
Nick Piggin 已提交
129 130 131 132 133
config GENERIC_LOCKBREAK
	bool
	default y
	depends on SMP && PREEMPT

L
Linus Torvalds 已提交
134 135 136 137 138 139 140
config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

141 142 143 144 145 146
config ARCH_HAS_ILOG2_U32
	bool

config ARCH_HAS_ILOG2_U64
	bool

147 148 149 150 151 152 153
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.

154 155 156
config ARCH_HAS_CPU_IDLE_WAIT
       def_bool y

157 158 159 160
config GENERIC_HWEIGHT
	bool
	default y

L
Linus Torvalds 已提交
161 162 163 164
config GENERIC_CALIBRATE_DELAY
	bool
	default y

165 166 167
config ARCH_MAY_HAVE_PC_FDC
	bool

168 169 170
config ZONE_DMA
	bool

171 172 173
config NEED_DMA_MAP_STATE
       def_bool y

L
Linus Torvalds 已提交
174 175 176 177 178 179
config GENERIC_ISA_DMA
	bool

config FIQ
	bool

180 181 182
config ARCH_MTD_XIP
	bool

183 184 185
config GENERIC_HARDIRQS_NO__DO_IRQ
	def_bool y

186 187 188 189 190
config ARM_L1_CACHE_SHIFT_6
	bool
	help
	  Setting ARM L1 cache line size to 64 Bytes.

191 192
config VECTORS_BASE
	hex
193
	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
194 195 196 197 198
	default DRAM_BASE if REMAP_VECTORS_TO_RAM
	default 0x00000000
	help
	  The base address of exception vectors.

L
Linus Torvalds 已提交
199 200
source "init/Kconfig"

201 202
source "kernel/Kconfig.freezer"

L
Linus Torvalds 已提交
203 204
menu "System Type"

205 206 207 208 209 210 211
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'.

212 213 214 215
#
# 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
216 217
choice
	prompt "ARM system type"
218
	default ARCH_VERSATILE
L
Linus Torvalds 已提交
219

220 221
config ARCH_AAEC2000
	bool "Agilent AAEC-2000 based"
222
	select CPU_ARM920T
223
	select ARM_AMBA
224
	select HAVE_CLK
225
	select ARCH_USES_GETTIMEOFFSET
226 227 228 229 230 231
	help
	  This enables support for systems based on the Agilent AAEC-2000

config ARCH_INTEGRATOR
	bool "ARM Ltd. Integrator family"
	select ARM_AMBA
232
	select ARCH_HAS_CPUFREQ
233
	select CLKDEV_LOOKUP
234
	select ICST
235
	select GENERIC_CLOCKEVENTS
236
	select PLAT_VERSATILE
237 238 239 240 241 242
	help
	  Support for ARM's Integrator platform.

config ARCH_REALVIEW
	bool "ARM Ltd. RealView family"
	select ARM_AMBA
243
	select CLKDEV_LOOKUP
244
	select HAVE_SCHED_CLOCK
245
	select ICST
246
	select GENERIC_CLOCKEVENTS
247
	select ARCH_WANT_OPTIONAL_GPIOLIB
248
	select PLAT_VERSATILE
249
	select ARM_TIMER_SP804
250
	select GPIO_PL061 if GPIOLIB
251 252 253 254 255 256 257
	help
	  This enables support for ARM Ltd RealView boards.

config ARCH_VERSATILE
	bool "ARM Ltd. Versatile family"
	select ARM_AMBA
	select ARM_VIC
258
	select CLKDEV_LOOKUP
259
	select HAVE_SCHED_CLOCK
260
	select ICST
261
	select GENERIC_CLOCKEVENTS
262
	select ARCH_WANT_OPTIONAL_GPIOLIB
263
	select PLAT_VERSATILE
264
	select ARM_TIMER_SP804
265 266 267
	help
	  This enables support for ARM Ltd Versatile board.

268 269 270 271 272
config ARCH_VEXPRESS
	bool "ARM Ltd. Versatile Express family"
	select ARCH_WANT_OPTIONAL_GPIOLIB
	select ARM_AMBA
	select ARM_TIMER_SP804
273
	select CLKDEV_LOOKUP
274 275
	select GENERIC_CLOCKEVENTS
	select HAVE_CLK
276
	select HAVE_SCHED_CLOCK
277 278 279 280 281
	select ICST
	select PLAT_VERSATILE
	help
	  This enables support for the ARM Ltd Versatile Express boards.

282 283
config ARCH_AT91
	bool "Atmel AT91"
284
	select ARCH_REQUIRE_GPIOLIB
D
David Brownell 已提交
285
	select HAVE_CLK
286
	help
287 288
	  This enables support for systems based on the Atmel AT91RM9200,
	  AT91SAM9 and AT91CAP9 processors.
289

290 291 292 293 294
config ARCH_BCMRING
	bool "Broadcom BCMRING"
	depends on MMU
	select CPU_V6
	select ARM_AMBA
295
	select CLKDEV_LOOKUP
296 297 298 299 300
	select GENERIC_CLOCKEVENTS
	select ARCH_WANT_OPTIONAL_GPIOLIB
	help
	  Support for Broadcom's BCMRing platform.

L
Linus Torvalds 已提交
301
config ARCH_CLPS711X
302
	bool "Cirrus Logic CLPS711x/EP721x-based"
303
	select CPU_ARM720T
304
	select ARCH_USES_GETTIMEOFFSET
305 306
	help
	  Support for Cirrus Logic 711x/721x based boards.
L
Linus Torvalds 已提交
307

308 309 310 311 312
config ARCH_CNS3XXX
	bool "Cavium Networks CNS3XXX family"
	select CPU_V6
	select GENERIC_CLOCKEVENTS
	select ARM_GIC
313
	select MIGHT_HAVE_PCI
314
	select PCI_DOMAINS if PCI
315 316 317
	help
	  Support for Cavium Networks CNS3XXX platform.

318 319 320 321
config ARCH_GEMINI
	bool "Cortina Systems Gemini"
	select CPU_FA526
	select ARCH_REQUIRE_GPIOLIB
322
	select ARCH_USES_GETTIMEOFFSET
323 324 325
	help
	  Support for the Cortina Systems Gemini family SoCs

L
Linus Torvalds 已提交
326 327
config ARCH_EBSA110
	bool "EBSA-110"
328
	select CPU_SA110
329
	select ISA
330
	select NO_IOPORT
331
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
332 333
	help
	  This is an evaluation board for the StrongARM processor available
334
	  from Digital. It has limited hardware on-board, including an
L
Linus Torvalds 已提交
335 336 337
	  Ethernet interface, two PCMCIA sockets, two serial ports and a
	  parallel port.

338 339
config ARCH_EP93XX
	bool "EP93xx-based"
340
	select CPU_ARM920T
341 342
	select ARM_AMBA
	select ARM_VIC
343
	select CLKDEV_LOOKUP
M
Michael Buesch 已提交
344
	select ARCH_REQUIRE_GPIOLIB
345
	select ARCH_HAS_HOLES_MEMORYMODEL
346
	select ARCH_USES_GETTIMEOFFSET
347 348 349
	help
	  This enables support for the Cirrus EP93xx series of CPUs.

L
Linus Torvalds 已提交
350 351
config ARCH_FOOTBRIDGE
	bool "FootBridge"
352
	select CPU_SA110
L
Linus Torvalds 已提交
353
	select FOOTBRIDGE
354
	select ARCH_USES_GETTIMEOFFSET
355 356 357
	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
358

359 360 361 362
config ARCH_MXC
	bool "Freescale MXC/iMX-based"
	select GENERIC_CLOCKEVENTS
	select ARCH_REQUIRE_GPIOLIB
363
	select CLKDEV_LOOKUP
364 365 366
	help
	  Support for Freescale MXC/iMX-based family of processors

367 368 369 370 371 372 373 374
config ARCH_MXS
	bool "Freescale MXS-based"
	select GENERIC_CLOCKEVENTS
	select ARCH_REQUIRE_GPIOLIB
	select COMMON_CLKDEV
	help
	  Support for Freescale MXS-based family of processors

375 376 377
config ARCH_STMP3XXX
	bool "Freescale STMP3xxx"
	select CPU_ARM926T
378
	select CLKDEV_LOOKUP
379 380 381 382 383 384
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_CLOCKEVENTS
	select USB_ARCH_HAS_EHCI
	help
	  Support for systems based on the Freescale 3xxx CPUs.

385 386
config ARCH_NETX
	bool "Hilscher NetX based"
387
	select CPU_ARM926T
388
	select ARM_VIC
389
	select GENERIC_CLOCKEVENTS
390
	help
391 392 393 394
	  This enables support for systems based on the Hilscher NetX Soc

config ARCH_H720X
	bool "Hynix HMS720x-based"
395
	select CPU_ARM720T
396
	select ISA_DMA_API
397
	select ARCH_USES_GETTIMEOFFSET
398 399 400
	help
	  This enables support for systems based on the Hynix HMS720x

401 402 403
config ARCH_IOP13XX
	bool "IOP13xx-based"
	depends on MMU
404
	select CPU_XSC3
405 406 407
	select PLAT_IOP
	select PCI
	select ARCH_SUPPORTS_MSI
408
	select VMSPLIT_1G
409 410 411
	help
	  Support for Intel's IOP13XX (XScale) family of processors.

412 413
config ARCH_IOP32X
	bool "IOP32x-based"
414
	depends on MMU
415
	select CPU_XSCALE
416
	select PLAT_IOP
417
	select PCI
418
	select ARCH_REQUIRE_GPIOLIB
419
	help
420 421 422 423 424 425
	  Support for Intel's 80219 and IOP32X (XScale) family of
	  processors.

config ARCH_IOP33X
	bool "IOP33x-based"
	depends on MMU
426
	select CPU_XSCALE
427
	select PLAT_IOP
428
	select PCI
429
	select ARCH_REQUIRE_GPIOLIB
430 431
	help
	  Support for Intel's IOP33X (XScale) family of processors.
L
Linus Torvalds 已提交
432

433 434
config ARCH_IXP23XX
 	bool "IXP23XX-based"
435
	depends on MMU
436
	select CPU_XSC3
437
 	select PCI
438
	select ARCH_USES_GETTIMEOFFSET
439
	help
440
	  Support for Intel's IXP23xx (XScale) family of processors.
L
Linus Torvalds 已提交
441 442 443

config ARCH_IXP2000
	bool "IXP2400/2800-based"
444
	depends on MMU
445
	select CPU_XSCALE
446
	select PCI
447
	select ARCH_USES_GETTIMEOFFSET
448 449
	help
	  Support for Intel's IXP2400/2800 (XScale) family of processors.
L
Linus Torvalds 已提交
450

451 452
config ARCH_IXP4XX
	bool "IXP4xx-based"
453
	depends on MMU
454
	select CPU_XSCALE
455
	select GENERIC_GPIO
456
	select GENERIC_CLOCKEVENTS
457
	select HAVE_SCHED_CLOCK
458
	select MIGHT_HAVE_PCI
R
Russell King 已提交
459
	select DMABOUNCE if PCI
460
	help
461
	  Support for Intel's IXP4XX (XScale) family of processors.
462

463 464 465 466 467 468 469 470 471
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

472 473
config ARCH_KIRKWOOD
	bool "Marvell Kirkwood"
474
	select CPU_FEROCEON
475
	select PCI
476
	select ARCH_REQUIRE_GPIOLIB
477 478 479 480 481 482
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell Kirkwood series SoCs:
	  88F6180, 88F6192 and 88F6281.

483 484
config ARCH_LOKI
	bool "Marvell Loki (88RC8480)"
485
	select CPU_FEROCEON
486 487 488 489 490
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the Marvell Loki (88RC8480) SoC.

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
498
	select CLKDEV_LOOKUP
499 500 501 502 503
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	help
	  Support for the NXP LPC32XX family of processors

504 505
config ARCH_MV78XX0
	bool "Marvell MV78xx0"
506
	select CPU_FEROCEON
507
	select PCI
508
	select ARCH_REQUIRE_GPIOLIB
509 510 511 512 513 514
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell MV78xx0 series SoCs:
	  MV781x0, MV782x0.

515
config ARCH_ORION5X
516 517
	bool "Marvell Orion"
	depends on MMU
518
	select CPU_FEROCEON
T
Tzachi Perelstein 已提交
519
	select PCI
520
	select ARCH_REQUIRE_GPIOLIB
521
	select GENERIC_CLOCKEVENTS
L
Lennert Buytenhek 已提交
522
	select PLAT_ORION
523
	help
524
	  Support for the following Marvell Orion 5x series SoCs:
525
	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
526
	  Orion-2 (5281), Orion-1-90 (6183).
527

528
config ARCH_MMP
529
	bool "Marvell PXA168/910/MMP2"
530 531
	depends on MMU
	select ARCH_REQUIRE_GPIOLIB
532
	select CLKDEV_LOOKUP
533
	select GENERIC_CLOCKEVENTS
534
	select HAVE_SCHED_CLOCK
535 536
	select TICK_ONESHOT
	select PLAT_PXA
H
Haojian Zhuang 已提交
537
	select SPARSE_IRQ
538
	help
539
	  Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
540 541 542 543

config ARCH_KS8695
	bool "Micrel/Kendin KS8695"
	select CPU_ARM922T
544
	select ARCH_REQUIRE_GPIOLIB
545
	select ARCH_USES_GETTIMEOFFSET
546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564
	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
565
	select ARCH_REQUIRE_GPIOLIB
566
	select CLKDEV_LOOKUP
567
	select GENERIC_CLOCKEVENTS
568
	help
569 570 571 572 573 574 575
	  Support for Nuvoton (Winbond logic dept.) ARM9 processor,
	  At present, the w90x900 has been renamed nuc900, regarding
	  the ARM series product line, you can login the following
	  link address to know more.

	  <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
		ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
576

577 578 579
config ARCH_NUC93X
	bool "Nuvoton NUC93X CPU"
	select CPU_ARM926T
580
	select CLKDEV_LOOKUP
581 582 583 584
	help
	  Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
	  low-power and high performance MPEG-4/JPEG multimedia controller chip.

585 586
config ARCH_TEGRA
	bool "NVIDIA Tegra"
R
Russell King 已提交
587
	select CLKDEV_LOOKUP
588 589 590 591
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select GENERIC_GPIO
	select HAVE_CLK
592
	select HAVE_SCHED_CLOCK
593
	select ARCH_HAS_BARRIERS if CACHE_L2X0
C
Colin Cross 已提交
594
	select ARCH_HAS_CPUFREQ
595 596 597 598
	help
	  This enables support for NVIDIA Tegra based systems (Tegra APX,
	  Tegra 6xx and Tegra 2 series).

599 600
config ARCH_PNX4008
	bool "Philips Nexperia PNX4008 Mobile"
601
	select CPU_ARM926T
602
	select CLKDEV_LOOKUP
603
	select ARCH_USES_GETTIMEOFFSET
604 605 606
	help
	  This enables support for Philips PNX4008 mobile platform.

L
Linus Torvalds 已提交
607
config ARCH_PXA
E
eric miao 已提交
608
	bool "PXA2xx/PXA3xx-based"
609
	depends on MMU
610
	select ARCH_MTD_XIP
611
	select ARCH_HAS_CPUFREQ
612
	select CLKDEV_LOOKUP
M
Michael Buesch 已提交
613
	select ARCH_REQUIRE_GPIOLIB
614
	select GENERIC_CLOCKEVENTS
615
	select HAVE_SCHED_CLOCK
616
	select TICK_ONESHOT
617
	select PLAT_PXA
618
	select SPARSE_IRQ
619
	help
E
eric miao 已提交
620
	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
L
Linus Torvalds 已提交
621

622 623
config ARCH_MSM
	bool "Qualcomm MSM"
624
	select HAVE_CLK
625
	select GENERIC_CLOCKEVENTS
P
Pavel Machek 已提交
626
	select ARCH_REQUIRE_GPIOLIB
627
	help
628 629 630 631 632
	  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).
633

634
config ARCH_SHMOBILE
635 636
	bool "Renesas SH-Mobile / R-Mobile"
	select HAVE_CLK
P
Paul Mundt 已提交
637
	select CLKDEV_LOOKUP
638 639 640
	select GENERIC_CLOCKEVENTS
	select NO_IOPORT
	select SPARSE_IRQ
641
	select MULTI_IRQ_HANDLER
642
	help
643
	  Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
644

L
Linus Torvalds 已提交
645 646 647 648 649
config ARCH_RPC
	bool "RiscPC"
	select ARCH_ACORN
	select FIQ
	select TIMER_ACORN
650
	select ARCH_MAY_HAVE_PC_FDC
651
	select HAVE_PATA_PLATFORM
652
	select ISA_DMA_API
A
Al Viro 已提交
653
	select NO_IOPORT
654
	select ARCH_SPARSEMEM_ENABLE
655
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
656 657 658 659 660 661
	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"
662
	select CPU_SA1100
663
	select ISA
664
	select ARCH_SPARSEMEM_ENABLE
665
	select ARCH_MTD_XIP
666
	select ARCH_HAS_CPUFREQ
R
Russell King 已提交
667
	select CPU_FREQ
668
	select GENERIC_CLOCKEVENTS
669
	select HAVE_CLK
670
	select HAVE_SCHED_CLOCK
671
	select TICK_ONESHOT
M
Michael Buesch 已提交
672
	select ARCH_REQUIRE_GPIOLIB
673 674
	help
	  Support for StrongARM 11x0 based boards.
L
Linus Torvalds 已提交
675 676

config ARCH_S3C2410
677
	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
D
David Brownell 已提交
678
	select GENERIC_GPIO
B
Ben Dooks 已提交
679
	select ARCH_HAS_CPUFREQ
680
	select HAVE_CLK
681
	select ARCH_USES_GETTIMEOFFSET
682
	select HAVE_S3C2410_I2C if I2C
L
Linus Torvalds 已提交
683 684 685
	help
	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
686
	  the Samsung SMDK2410 development board (and derivatives).
L
Linus Torvalds 已提交
687

688 689 690 691
	  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
692 693
config ARCH_S3C64XX
	bool "Samsung S3C64XX"
694
	select PLAT_SAMSUNG
695 696
	select CPU_V6
	select ARM_VIC
B
Ben Dooks 已提交
697
	select HAVE_CLK
698
	select NO_IOPORT
699
	select ARCH_USES_GETTIMEOFFSET
700
	select ARCH_HAS_CPUFREQ
701 702 703 704 705 706 707 708 709 710 711
	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
712
	select HAVE_S3C2410_I2C if I2C
713
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
B
Ben Dooks 已提交
714 715 716
	help
	  Samsung S3C64XX series based systems

717 718
config ARCH_S5P64X0
	bool "Samsung S5P6440 S5P6450"
719 720 721
	select CPU_V6
	select GENERIC_GPIO
	select HAVE_CLK
722
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
723
	select ARCH_USES_GETTIMEOFFSET
724
	select HAVE_S3C2410_I2C if I2C
725
	select HAVE_S3C_RTC if RTC_CLASS
726
	help
727 728
	  Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
	  SMDK6450.
729

730 731 732 733 734
config ARCH_S5P6442
	bool "Samsung S5P6442"
	select CPU_V6
	select GENERIC_GPIO
	select HAVE_CLK
735
	select ARCH_USES_GETTIMEOFFSET
736
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
737 738 739
	help
	  Samsung S5P6442 CPU based systems

740 741
config ARCH_S5PC100
	bool "Samsung S5PC100"
742 743 744
	select GENERIC_GPIO
	select HAVE_CLK
	select CPU_V7
745
	select ARM_L1_CACHE_SHIFT_6
746
	select ARCH_USES_GETTIMEOFFSET
747
	select HAVE_S3C2410_I2C if I2C
748
	select HAVE_S3C_RTC if RTC_CLASS
749
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
750
	help
751
	  Samsung S5PC100 series based systems
752

753 754 755
config ARCH_S5PV210
	bool "Samsung S5PV210/S5PC110"
	select CPU_V7
756
	select ARCH_SPARSEMEM_ENABLE
757 758 759
	select GENERIC_GPIO
	select HAVE_CLK
	select ARM_L1_CACHE_SHIFT_6
760
	select ARCH_HAS_CPUFREQ
761
	select ARCH_USES_GETTIMEOFFSET
762
	select HAVE_S3C2410_I2C if I2C
763
	select HAVE_S3C_RTC if RTC_CLASS
764
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
765 766 767
	help
	  Samsung S5PV210/S5PC110 series based systems

768 769 770
config ARCH_S5PV310
	bool "Samsung S5PV310/S5PC210"
	select CPU_V7
771
	select ARCH_SPARSEMEM_ENABLE
772 773 774
	select GENERIC_GPIO
	select HAVE_CLK
	select GENERIC_CLOCKEVENTS
775
	select HAVE_S3C_RTC if RTC_CLASS
776
	select HAVE_S3C2410_I2C if I2C
777
	select HAVE_S3C2410_WATCHDOG if WATCHDOG
778 779 780
	help
	  Samsung S5PV310 series based systems

L
Linus Torvalds 已提交
781 782
config ARCH_SHARK
	bool "Shark"
783
	select CPU_SA110
784 785
	select ISA
	select ISA_DMA
786
	select ZONE_DMA
787
	select PCI
788
	select ARCH_USES_GETTIMEOFFSET
789 790 791
	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
792

H
Hans J. Koch 已提交
793 794 795 796
config ARCH_TCC_926
	bool "Telechips TCC ARM926-based systems"
	select CPU_ARM926T
	select HAVE_CLK
797
	select CLKDEV_LOOKUP
H
Hans J. Koch 已提交
798 799 800 801
	select GENERIC_CLOCKEVENTS
	help
	  Support for Telechips TCC ARM926-based systems.

L
Linus Torvalds 已提交
802 803
config ARCH_LH7A40X
	bool "Sharp LH7A40X"
804
	select CPU_ARM922T
805
	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
806
	select ARCH_USES_GETTIMEOFFSET
L
Linus Torvalds 已提交
807 808 809 810 811 812
	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.

813 814 815 816
config ARCH_U300
	bool "ST-Ericsson U300 Series"
	depends on MMU
	select CPU_ARM926T
817
	select HAVE_SCHED_CLOCK
818
	select HAVE_TCM
819 820 821
	select ARM_AMBA
	select ARM_VIC
	select GENERIC_CLOCKEVENTS
822
	select CLKDEV_LOOKUP
823 824 825 826
	select GENERIC_GPIO
	help
	  Support for ST-Ericsson U300 series mobile platforms.

827 828 829 830 831
config ARCH_U8500
	bool "ST-Ericsson U8500 Series"
	select CPU_V7
	select ARM_AMBA
	select GENERIC_CLOCKEVENTS
832
	select CLKDEV_LOOKUP
833
	select ARCH_REQUIRE_GPIOLIB
834
	select ARCH_HAS_CPUFREQ
835 836 837 838 839 840 841 842
	help
	  Support for ST-Ericsson's Ux500 architecture

config ARCH_NOMADIK
	bool "STMicroelectronics Nomadik"
	select ARM_AMBA
	select ARM_VIC
	select CPU_ARM926T
843
	select CLKDEV_LOOKUP
844 845 846 847 848
	select GENERIC_CLOCKEVENTS
	select ARCH_REQUIRE_GPIOLIB
	help
	  Support for the Nomadik platform by ST-Ericsson

849 850 851
config ARCH_DAVINCI
	bool "TI DaVinci"
	select GENERIC_CLOCKEVENTS
852
	select ARCH_REQUIRE_GPIOLIB
853
	select ZONE_DMA
854
	select HAVE_IDE
855
	select CLKDEV_LOOKUP
D
David Brownell 已提交
856
	select GENERIC_ALLOCATOR
857
	select ARCH_HAS_HOLES_MEMORYMODEL
858 859 860
	help
	  Support for TI's DaVinci platform.

861 862
config ARCH_OMAP
	bool "TI OMAP"
863
	select HAVE_CLK
M
Michael Buesch 已提交
864
	select ARCH_REQUIRE_GPIOLIB
865
	select ARCH_HAS_CPUFREQ
866
	select GENERIC_CLOCKEVENTS
867
	select HAVE_SCHED_CLOCK
868
	select ARCH_HAS_HOLES_MEMORYMODEL
869
	help
870
	  Support for TI's OMAP platform (OMAP1/2/3/4).
871

872 873 874 875
config PLAT_SPEAR
	bool "ST SPEAr"
	select ARM_AMBA
	select ARCH_REQUIRE_GPIOLIB
876
	select CLKDEV_LOOKUP
877 878 879 880 881
	select GENERIC_CLOCKEVENTS
	select HAVE_CLK
	help
	  Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).

L
Linus Torvalds 已提交
882 883
endchoice

884 885 886 887 888
#
# 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.
#
889 890 891 892 893 894
source "arch/arm/mach-aaec2000/Kconfig"

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

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

L
Linus Torvalds 已提交
895 896
source "arch/arm/mach-clps711x/Kconfig"

897 898
source "arch/arm/mach-cns3xxx/Kconfig"

899 900 901 902
source "arch/arm/mach-davinci/Kconfig"

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

903 904
source "arch/arm/mach-ep93xx/Kconfig"

L
Linus Torvalds 已提交
905 906
source "arch/arm/mach-footbridge/Kconfig"

907 908
source "arch/arm/mach-gemini/Kconfig"

909 910
source "arch/arm/mach-h720x/Kconfig"

L
Linus Torvalds 已提交
911 912
source "arch/arm/mach-integrator/Kconfig"

913 914 915
source "arch/arm/mach-iop32x/Kconfig"

source "arch/arm/mach-iop33x/Kconfig"
L
Linus Torvalds 已提交
916

917 918
source "arch/arm/mach-iop13xx/Kconfig"

L
Linus Torvalds 已提交
919 920 921 922
source "arch/arm/mach-ixp4xx/Kconfig"

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

923 924
source "arch/arm/mach-ixp23xx/Kconfig"

925 926 927 928 929 930
source "arch/arm/mach-kirkwood/Kconfig"

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

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

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

933 934
source "arch/arm/mach-lpc32xx/Kconfig"

935 936
source "arch/arm/mach-msm/Kconfig"

937 938
source "arch/arm/mach-mv78xx0/Kconfig"

939
source "arch/arm/plat-mxc/Kconfig"
L
Linus Torvalds 已提交
940

941 942
source "arch/arm/mach-mxs/Kconfig"

943
source "arch/arm/mach-netx/Kconfig"
944

945 946 947 948
source "arch/arm/mach-nomadik/Kconfig"
source "arch/arm/plat-nomadik/Kconfig"

source "arch/arm/mach-ns9xxx/Kconfig"
L
Linus Torvalds 已提交
949

R
Russell King 已提交
950
source "arch/arm/mach-nuc93x/Kconfig"
L
Linus Torvalds 已提交
951

952 953 954
source "arch/arm/plat-omap/Kconfig"

source "arch/arm/mach-omap1/Kconfig"
L
Linus Torvalds 已提交
955

956 957
source "arch/arm/mach-omap2/Kconfig"

958
source "arch/arm/mach-orion5x/Kconfig"
959

960 961
source "arch/arm/mach-pxa/Kconfig"
source "arch/arm/plat-pxa/Kconfig"
962

963 964 965 966 967
source "arch/arm/mach-mmp/Kconfig"

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

source "arch/arm/mach-sa1100/Kconfig"
968

969
source "arch/arm/plat-samsung/Kconfig"
970
source "arch/arm/plat-s3c24xx/Kconfig"
971
source "arch/arm/plat-s5p/Kconfig"
972

973
source "arch/arm/plat-spear/Kconfig"
974

H
Hans J. Koch 已提交
975 976
source "arch/arm/plat-tcc/Kconfig"

977 978
if ARCH_S3C2410
source "arch/arm/mach-s3c2400/Kconfig"
L
Linus Torvalds 已提交
979
source "arch/arm/mach-s3c2410/Kconfig"
980
source "arch/arm/mach-s3c2412/Kconfig"
Y
Yauhen Kharuzhy 已提交
981
source "arch/arm/mach-s3c2416/Kconfig"
982
source "arch/arm/mach-s3c2440/Kconfig"
983
source "arch/arm/mach-s3c2443/Kconfig"
984
endif
L
Linus Torvalds 已提交
985

B
Ben Dooks 已提交
986
if ARCH_S3C64XX
987
source "arch/arm/mach-s3c64xx/Kconfig"
B
Ben Dooks 已提交
988 989
endif

990
source "arch/arm/mach-s5p64x0/Kconfig"
991

992
source "arch/arm/mach-s5p6442/Kconfig"
993

994 995
source "arch/arm/mach-s5pc100/Kconfig"

996 997
source "arch/arm/mach-s5pv210/Kconfig"

998 999
source "arch/arm/mach-s5pv310/Kconfig"

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

1002
source "arch/arm/plat-stmp3xxx/Kconfig"
1003

1004 1005
source "arch/arm/mach-tegra/Kconfig"

1006
source "arch/arm/mach-u300/Kconfig"
L
Linus Torvalds 已提交
1007

1008
source "arch/arm/mach-ux500/Kconfig"
L
Linus Torvalds 已提交
1009 1010 1011

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

1012 1013
source "arch/arm/mach-vexpress/Kconfig"

1014 1015
source "arch/arm/mach-w90x900/Kconfig"

L
Linus Torvalds 已提交
1016 1017 1018 1019
# Definitions to make life easier
config ARCH_ACORN
	bool

1020 1021
config PLAT_IOP
	bool
M
Mikael Pettersson 已提交
1022
	select GENERIC_CLOCKEVENTS
1023
	select HAVE_SCHED_CLOCK
1024

L
Lennert Buytenhek 已提交
1025 1026
config PLAT_ORION
	bool
1027
	select HAVE_SCHED_CLOCK
L
Lennert Buytenhek 已提交
1028

1029 1030 1031
config PLAT_PXA
	bool

1032 1033 1034
config PLAT_VERSATILE
	bool

1035 1036 1037
config ARM_TIMER_SP804
	bool

L
Linus Torvalds 已提交
1038 1039
source arch/arm/mm/Kconfig

1040 1041
config IWMMXT
	bool "Enable iWMMXt support"
1042 1043
	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
	default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
1044 1045 1046 1047
	help
	  Enable support for iWMMXt context switching at run time if
	  running on a CPU that supports it.

L
Linus Torvalds 已提交
1048 1049 1050 1051 1052 1053
#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
config XSCALE_PMU
	bool
	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
	default y

1054
config CPU_HAS_PMU
1055 1056
	depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
		   (!ARCH_OMAP3 || OMAP3_EMU)
1057 1058 1059
	default y
	bool

1060 1061 1062 1063 1064
config MULTI_IRQ_HANDLER
	bool
	help
	  Allow each machine to specify it's own IRQ handler at run time.

1065 1066 1067 1068
if !MMU
source "arch/arm/Kconfig-nommu"
endif

1069 1070
config ARM_ERRATA_411920
	bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
1071
	depends on CPU_V6
1072 1073 1074 1075 1076 1077
	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.

1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093
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.

1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106
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.

1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118
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.

1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130
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.

1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144
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.

1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157
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.
1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169

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.
1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183

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.

L
Linus Torvalds 已提交
1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201
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.

1202
# Select ISA DMA controller support
L
Linus Torvalds 已提交
1203 1204
config ISA_DMA
	bool
1205
	select ISA_DMA_API
L
Linus Torvalds 已提交
1206

1207
# Select ISA DMA interface
A
Al Viro 已提交
1208 1209 1210
config ISA_DMA_API
	bool

L
Linus Torvalds 已提交
1211
config PCI
1212
	bool "PCI support" if MIGHT_HAVE_PCI
L
Linus Torvalds 已提交
1213 1214 1215 1216 1217 1218
	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.

1219 1220 1221 1222
config PCI_DOMAINS
	bool
	depends on PCI

1223 1224 1225 1226 1227 1228
config PCI_NANOENGINE
	bool "BSE nanoEngine PCI support"
	depends on SA1100_NANOENGINE
	help
	  Enable PCI on the BSE nanoEngine board.

1229 1230 1231
config PCI_SYSCALL
	def_bool PCI

L
Linus Torvalds 已提交
1232 1233 1234 1235 1236 1237
# Select the host bridge type
config PCI_HOST_VIA82C505
	bool
	depends on PCI && ARCH_SHARK
	default y

M
Mike Rapoport 已提交
1238 1239 1240 1241 1242 1243
config PCI_HOST_ITE8152
	bool
	depends on PCI && MACH_ARMCORE
	default y
	select DMABOUNCE

L
Linus Torvalds 已提交
1244 1245 1246 1247 1248 1249 1250 1251
source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

endmenu

menu "Kernel Features"

1252 1253
source "kernel/time/Kconfig"

L
Linus Torvalds 已提交
1254 1255
config SMP
	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
1256
	depends on EXPERIMENTAL
1257
	depends on GENERIC_CLOCKEVENTS
1258
	depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
1259 1260
		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
		 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
1261
		 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
1262
	select USE_GENERIC_SMP_HELPERS
1263
	select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
L
Linus Torvalds 已提交
1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274
	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
1275
	  See also <file:Documentation/i386/IO-APIC.txt>,
L
Linus Torvalds 已提交
1276
	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1277
	  <http://tldp.org/HOWTO/SMP-HOWTO.html>.
L
Linus Torvalds 已提交
1278 1279 1280

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

1281 1282 1283
config SMP_ON_UP
	bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
	depends on EXPERIMENTAL
1284
	depends on SMP && !XIP_KERNEL
1285 1286 1287 1288 1289 1290 1291 1292 1293
	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.

1294 1295 1296 1297 1298 1299
config HAVE_ARM_SCU
	bool
	depends on SMP
	help
	  This option enables support for the ARM system coherency unit

1300 1301 1302
config HAVE_ARM_TWD
	bool
	depends on SMP
R
Russell King 已提交
1303
	select TICK_ONESHOT
1304 1305 1306
	help
	  This options enables support for the ARM timer and watchdog unit

1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329
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
1330 1331 1332 1333 1334 1335
config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
	default "4"

1336 1337 1338
config HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
	depends on SMP && HOTPLUG && EXPERIMENTAL
1339
	depends on !ARCH_MSM
1340 1341 1342 1343
	help
	  Say Y here to experiment with turning CPUs off and on.  CPUs
	  can be controlled through /sys/devices/system/cpu.

1344 1345
config LOCAL_TIMERS
	bool "Use local timer interrupts"
1346
	depends on SMP
1347
	default y
1348
	select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
1349 1350 1351 1352 1353 1354
	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.

1355
source kernel/Kconfig.preempt
L
Linus Torvalds 已提交
1356

1357 1358
config HZ
	int
1359
	default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
R
Russell King 已提交
1360
		ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
1361
	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
1362
	default AT91_TIMER_HZ if ARCH_AT91
1363
	default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
1364 1365
	default 100

1366
config THUMB2_KERNEL
1367
	bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
1368
	depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
1369 1370 1371 1372 1373 1374 1375 1376 1377
	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.

1378 1379 1380
config ARM_ASM_UNIFIED
	bool

1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395
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.

1396
config OABI_COMPAT
1397
	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
1398
	depends on AEABI && EXPERIMENTAL
1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412
	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.

1413
config ARCH_HAS_HOLES_MEMORYMODEL
1414 1415
	bool

1416 1417 1418
config ARCH_SPARSEMEM_ENABLE
	bool

1419 1420 1421
config ARCH_SPARSEMEM_DEFAULT
	def_bool ARCH_SPARSEMEM_ENABLE

1422
config ARCH_SELECT_MEMORY_MODEL
R
Russell King 已提交
1423
	def_bool ARCH_SPARSEMEM_ENABLE
Y
Yasunori Goto 已提交
1424

N
Nicolas Pitre 已提交
1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441
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
1442 1443 1444 1445 1446
config HIGHPTE
	bool "Allocate 2nd-level pagetables from highmem"
	depends on HIGHMEM
	depends on !OUTER_CACHE

1447 1448
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
1449
	depends on PERF_EVENTS && CPU_HAS_PMU
1450 1451 1452 1453 1454
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

1455
config SPARSE_IRQ
1456
	def_bool n
1457 1458 1459 1460 1461 1462 1463
	help
	  This enables support for sparse irqs. This is useful in general
	  as most CPUs have a fairly sparse array of IRQ vectors, which
	  the irq_desc then maps directly on to. Systems with a high
	  number of off-chip IRQs will want to treat this as
	  experimental until they have been independently verified.

1464 1465
source "mm/Kconfig"

1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481
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
1482 1483
config LEDS
	bool "Timer and CPU usage LEDs"
1484
	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
1485
		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
L
Linus Torvalds 已提交
1486 1487
		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
1488
		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
1489
		   ARCH_AT91 || ARCH_DAVINCI || \
1490
		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
L
Linus Torvalds 已提交
1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503
	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
1504 1505
			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			    || MACH_OMAP_PERSEUS2
L
Linus Torvalds 已提交
1506
	depends on LEDS
1507
	depends on !GENERIC_CLOCKEVENTS
L
Linus Torvalds 已提交
1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521
	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
1522 1523 1524
			!ARCH_OMAP) \
			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			|| MACH_OMAP_PERSEUS2
L
Linus Torvalds 已提交
1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536
	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
1537
	depends on CPU_CP15_MMU
L
Linus Torvalds 已提交
1538
	default y if !ARCH_EBSA110
1539
	select HAVE_PROC_CPU if PROC_FS
L
Linus Torvalds 已提交
1540
	help
1541
	  ARM processors cannot fetch/store information which is not
L
Linus Torvalds 已提交
1542 1543 1544 1545 1546 1547 1548
	  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.

1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564
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
1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578
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.

1579 1580
config CC_STACKPROTECTOR
	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1581
	depends on EXPERIMENTAL
1582 1583 1584 1585 1586 1587 1588 1589 1590 1591
	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.

1592 1593 1594 1595 1596 1597
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
1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618
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
1619 1620 1621 1622 1623 1624
	  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
1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644

	  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).

1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655
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
1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685
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
1686 1687 1688 1689 1690 1691
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
1692
	  but it is independent of the system firmware.   And like a reboot
R
Richard Purdie 已提交
1693 1694 1695 1696 1697 1698 1699
	  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.

1700 1701
config ATAGS_PROC
	bool "Export atags in procfs"
1702 1703
	depends on KEXEC
	default y
1704 1705 1706 1707
	help
	  Should the atags used to boot the kernel be exported in an "atags"
	  file in procfs. Useful with kexec.

1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720
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

1721 1722 1723 1724 1725 1726 1727 1728 1729 1730
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
1731 1732
endmenu

1733
menu "CPU Power Management"
L
Linus Torvalds 已提交
1734

1735
if ARCH_HAS_CPUFREQ
L
Linus Torvalds 已提交
1736 1737 1738

source "drivers/cpufreq/Kconfig"

Y
Yong Shen 已提交
1739 1740 1741 1742 1743 1744
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
1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761
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
1762 1763 1764 1765 1766 1767
config CPU_FREQ_PXA
	bool
	depends on CPU_FREQ && ARCH_PXA && PXA25x
	default y
	select CPU_FREQ_DEFAULT_GOV_USERSPACE

1768 1769 1770 1771
config CPU_FREQ_S3C64XX
	bool "CPUfreq support for Samsung S3C64XX CPUs"
	depends on CPU_FREQ && CPU_S3C6410

B
Ben Dooks 已提交
1772 1773 1774 1775 1776 1777
config CPU_FREQ_S3C
	bool
	help
	  Internal configuration node for common cpufreq on Samsung SoC

config CPU_FREQ_S3C24XX
1778
	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
B
Ben Dooks 已提交
1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789
	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
1790
	bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
B
Ben Dooks 已提交
1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811
	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

1812 1813 1814 1815 1816 1817
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
1818 1819
endif

1820 1821 1822 1823
source "drivers/cpuidle/Kconfig"

endmenu

L
Linus Torvalds 已提交
1824 1825 1826 1827 1828 1829
menu "Floating point emulation"

comment "At least one emulation must be selected"

config FPE_NWFPE
	bool "NWFPE math emulation"
1830
	depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
L
Linus Torvalds 已提交
1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841
	---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"
1842
	depends on FPE_NWFPE
L
Linus Torvalds 已提交
1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853
	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)"
1854
	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
L
Linus Torvalds 已提交
1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867
	---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
1868
	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
L
Linus Torvalds 已提交
1869 1870 1871 1872 1873 1874 1875 1876 1877
	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.

1878 1879 1880 1881 1882
config VFPv3
	bool
	depends on VFP
	default y if CPU_V7

1883 1884 1885 1886 1887 1888 1889
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
1890 1891 1892 1893 1894 1895 1896 1897
endmenu

menu "Userspace binary formats"

source "fs/Kconfig.binfmt"

config ARTHUR
	tristate "RISC OS personality"
1898
	depends on !AEABI
L
Linus Torvalds 已提交
1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909
	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
1910
source "kernel/power/Kconfig"
L
Linus Torvalds 已提交
1911

J
Johannes Berg 已提交
1912 1913 1914
config ARCH_SUSPEND_POSSIBLE
	def_bool y

L
Linus Torvalds 已提交
1915 1916
endmenu

1917 1918
source "net/Kconfig"

1919
source "drivers/Kconfig"
L
Linus Torvalds 已提交
1920 1921 1922 1923 1924 1925 1926 1927 1928 1929

source "fs/Kconfig"

source "arch/arm/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"