Kconfig 40.7 KB
Newer Older
L
Linus Torvalds 已提交
1 2 3 4 5 6 7 8 9 10
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#

mainmenu "Linux Kernel Configuration"

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

R
Russell King 已提交
32 33 34
config HAVE_PWM
	bool

35 36 37
config SYS_SUPPORTS_APM_EMULATION
	bool

D
David Brownell 已提交
38 39 40
config GENERIC_GPIO
	bool

41 42 43
config GENERIC_TIME
	bool

44 45 46
config GENERIC_CLOCKEVENTS
	bool

47 48 49 50 51
config GENERIC_CLOCKEVENTS_BROADCAST
	bool
	depends on GENERIC_CLOCKEVENTS
	default y if SMP && !LOCAL_TIMERS

52 53 54 55
config HAVE_TCM
	bool
	select GENERIC_ALLOCATOR

56 57 58
config HAVE_PROC_CPU
	bool

A
Al Viro 已提交
59 60 61
config NO_IOPORT
	bool

L
Linus Torvalds 已提交
62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87
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.

88 89 90 91
config GENERIC_HARDIRQS
	bool
	default y

92 93 94 95
config STACKTRACE_SUPPORT
	bool
	default y

N
Nicolas Pitre 已提交
96 97 98 99 100
config HAVE_LATENCYTOP_SUPPORT
	bool
	depends on !SMP
	default y

101 102 103 104
config LOCKDEP_SUPPORT
	bool
	default y

R
Russell King 已提交
105 106 107 108
config TRACE_IRQFLAGS_SUPPORT
	bool
	default y

109 110 111 112 113 114 115 116
config HARDIRQS_SW_RESEND
	bool
	default y

config GENERIC_IRQ_PROBE
	bool
	default y

N
Nick Piggin 已提交
117 118 119 120 121
config GENERIC_LOCKBREAK
	bool
	default y
	depends on SMP && PREEMPT

L
Linus Torvalds 已提交
122 123 124 125 126 127 128
config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

129 130 131 132 133 134
config ARCH_HAS_ILOG2_U32
	bool

config ARCH_HAS_ILOG2_U64
	bool

135 136 137 138 139 140 141
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.

142 143 144 145
config GENERIC_HWEIGHT
	bool
	default y

L
Linus Torvalds 已提交
146 147 148 149
config GENERIC_CALIBRATE_DELAY
	bool
	default y

150 151 152
config ARCH_MAY_HAVE_PC_FDC
	bool

153 154 155
config ZONE_DMA
	bool

L
Linus Torvalds 已提交
156 157 158 159 160 161
config GENERIC_ISA_DMA
	bool

config FIQ
	bool

162 163 164
config ARCH_MTD_XIP
	bool

165 166 167
config GENERIC_HARDIRQS_NO__DO_IRQ
	def_bool y

168 169 170 171 172
config ARM_L1_CACHE_SHIFT_6
	bool
	help
	  Setting ARM L1 cache line size to 64 Bytes.

173 174 175 176 177 178 179 180 181 182 183 184 185 186 187
if OPROFILE

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

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

config OPROFILE_ARM11_CORE
	bool

188 189 190 191 192
config OPROFILE_ARMV7
	def_bool y
	depends on CPU_V7 && !SMP
	bool

193 194
endif

195 196
config VECTORS_BASE
	hex
197
	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
198 199 200 201 202
	default DRAM_BASE if REMAP_VECTORS_TO_RAM
	default 0x00000000
	help
	  The base address of exception vectors.

L
Linus Torvalds 已提交
203 204
source "init/Kconfig"

205 206
source "kernel/Kconfig.freezer"

L
Linus Torvalds 已提交
207 208
menu "System Type"

209 210 211 212 213 214 215
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'.

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
225 226 227 228 229 230
	help
	  This enables support for systems based on the Agilent AAEC-2000

config ARCH_INTEGRATOR
	bool "ARM Ltd. Integrator family"
	select ARM_AMBA
231
	select ARCH_HAS_CPUFREQ
232
	select HAVE_CLK
233
	select COMMON_CLKDEV
234 235 236 237 238 239 240
	select ICST525
	help
	  Support for ARM's Integrator platform.

config ARCH_REALVIEW
	bool "ARM Ltd. RealView family"
	select ARM_AMBA
241
	select HAVE_CLK
242
	select COMMON_CLKDEV
243
	select ICST307
244
	select GENERIC_TIME
245
	select GENERIC_CLOCKEVENTS
246
	select ARCH_WANT_OPTIONAL_GPIOLIB
247 248 249 250 251 252 253
	help
	  This enables support for ARM Ltd RealView boards.

config ARCH_VERSATILE
	bool "ARM Ltd. Versatile family"
	select ARM_AMBA
	select ARM_VIC
254
	select HAVE_CLK
255
	select COMMON_CLKDEV
256
	select ICST307
257
	select GENERIC_TIME
258
	select GENERIC_CLOCKEVENTS
259
	select ARCH_WANT_OPTIONAL_GPIOLIB
260 261 262
	help
	  This enables support for ARM Ltd Versatile board.

263 264
config ARCH_AT91
	bool "Atmel AT91"
D
David Brownell 已提交
265
	select GENERIC_GPIO
266
	select ARCH_REQUIRE_GPIOLIB
D
David Brownell 已提交
267
	select HAVE_CLK
268
	help
269 270
	  This enables support for systems based on the Atmel AT91RM9200,
	  AT91SAM9 and AT91CAP9 processors.
271

L
Linus Torvalds 已提交
272
config ARCH_CLPS711X
273
	bool "Cirrus Logic CLPS711x/EP721x-based"
274
	select CPU_ARM720T
275 276
	help
	  Support for Cirrus Logic 711x/721x based boards.
L
Linus Torvalds 已提交
277

278 279 280 281 282 283 284 285
config ARCH_GEMINI
	bool "Cortina Systems Gemini"
	select CPU_FA526
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	help
	  Support for the Cortina Systems Gemini family SoCs

L
Linus Torvalds 已提交
286 287
config ARCH_EBSA110
	bool "EBSA-110"
288
	select CPU_SA110
289
	select ISA
290
	select NO_IOPORT
L
Linus Torvalds 已提交
291 292
	help
	  This is an evaluation board for the StrongARM processor available
293
	  from Digital. It has limited hardware on-board, including an
L
Linus Torvalds 已提交
294 295 296
	  Ethernet interface, two PCMCIA sockets, two serial ports and a
	  parallel port.

297 298
config ARCH_EP93XX
	bool "EP93xx-based"
299
	select CPU_ARM920T
300 301
	select ARM_AMBA
	select ARM_VIC
302
	select GENERIC_GPIO
303
	select HAVE_CLK
304
	select COMMON_CLKDEV
M
Michael Buesch 已提交
305
	select ARCH_REQUIRE_GPIOLIB
306
	select ARCH_HAS_HOLES_MEMORYMODEL
307 308 309
	help
	  This enables support for the Cirrus EP93xx series of CPUs.

L
Linus Torvalds 已提交
310 311
config ARCH_FOOTBRIDGE
	bool "FootBridge"
312
	select CPU_SA110
L
Linus Torvalds 已提交
313
	select FOOTBRIDGE
314 315 316
	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
317

318 319 320 321 322 323 324
config ARCH_MXC
	bool "Freescale MXC/iMX-based"
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select ARCH_MTD_XIP
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
325
	select HAVE_CLK
326 327 328
	help
	  Support for Freescale MXC/iMX-based family of processors

329 330 331 332 333 334 335 336 337 338 339 340 341
config ARCH_STMP3XXX
	bool "Freescale STMP3xxx"
	select CPU_ARM926T
	select HAVE_CLK
	select COMMON_CLKDEV
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select GENERIC_GPIO
	select USB_ARCH_HAS_EHCI
	help
	  Support for systems based on the Freescale 3xxx CPUs.

342 343
config ARCH_NETX
	bool "Hilscher NetX based"
344
	select CPU_ARM926T
345
	select ARM_VIC
346
	select GENERIC_CLOCKEVENTS
U
Uwe Kleine-König 已提交
347
	select GENERIC_TIME
348
	help
349 350 351 352
	  This enables support for systems based on the Hilscher NetX Soc

config ARCH_H720X
	bool "Hynix HMS720x-based"
353
	select CPU_ARM720T
354 355 356 357
	select ISA_DMA_API
	help
	  This enables support for systems based on the Hynix HMS720x

358 359 360 361 362 363 364 365 366
config ARCH_NOMADIK
	bool "STMicroelectronics Nomadik"
	select ARM_AMBA
	select ARM_VIC
	select CPU_ARM926T
	select HAVE_CLK
	select COMMON_CLKDEV
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
367 368
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
369 370 371
	help
	  Support for the Nomadik platform by ST-Ericsson

372 373 374
config ARCH_IOP13XX
	bool "IOP13xx-based"
	depends on MMU
375
	select CPU_XSC3
376 377 378
	select PLAT_IOP
	select PCI
	select ARCH_SUPPORTS_MSI
379
	select VMSPLIT_1G
380 381 382
	help
	  Support for Intel's IOP13XX (XScale) family of processors.

383 384
config ARCH_IOP32X
	bool "IOP32x-based"
385
	depends on MMU
386
	select CPU_XSCALE
387
	select PLAT_IOP
388
	select PCI
389
	select GENERIC_GPIO
390
	select ARCH_REQUIRE_GPIOLIB
391
	help
392 393 394 395 396 397
	  Support for Intel's 80219 and IOP32X (XScale) family of
	  processors.

config ARCH_IOP33X
	bool "IOP33x-based"
	depends on MMU
398
	select CPU_XSCALE
399
	select PLAT_IOP
400
	select PCI
401
	select GENERIC_GPIO
402
	select ARCH_REQUIRE_GPIOLIB
403 404
	help
	  Support for Intel's IOP33X (XScale) family of processors.
L
Linus Torvalds 已提交
405

406 407
config ARCH_IXP23XX
 	bool "IXP23XX-based"
408
	depends on MMU
409
	select CPU_XSC3
410
 	select PCI
411
	help
412
	  Support for Intel's IXP23xx (XScale) family of processors.
L
Linus Torvalds 已提交
413 414 415

config ARCH_IXP2000
	bool "IXP2400/2800-based"
416
	depends on MMU
417
	select CPU_XSCALE
418
	select PCI
419 420
	help
	  Support for Intel's IXP2400/2800 (XScale) family of processors.
L
Linus Torvalds 已提交
421

422 423
config ARCH_IXP4XX
	bool "IXP4xx-based"
424
	depends on MMU
425
	select CPU_XSCALE
426
	select GENERIC_GPIO
427 428
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
R
Russell King 已提交
429
	select DMABOUNCE if PCI
430
	help
431
	  Support for Intel's IXP4XX (XScale) family of processors.
432

L
Linus Torvalds 已提交
433 434
config ARCH_L7200
	bool "LinkUp-L7200"
435
	select CPU_ARM720T
L
Linus Torvalds 已提交
436 437 438 439 440 441 442 443 444 445 446
	select FIQ
	help
	  Say Y here if you intend to run this kernel on a LinkUp Systems
	  L7200 Software Development Board which uses an ARM720T processor.
	  Information on this board can be obtained at:

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

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

447 448 449 450 451 452 453 454 455 456 457
config ARCH_DOVE
	bool "Marvell Dove"
	select PCI
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the Marvell Dove SoC 88AP510

458 459
config ARCH_KIRKWOOD
	bool "Marvell Kirkwood"
460
	select CPU_FEROCEON
461
	select PCI
462
	select GENERIC_GPIO
463
	select ARCH_REQUIRE_GPIOLIB
464 465 466 467 468 469 470
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell Kirkwood series SoCs:
	  88F6180, 88F6192 and 88F6281.

471 472
config ARCH_LOKI
	bool "Marvell Loki (88RC8480)"
473
	select CPU_FEROCEON
474 475 476 477 478 479
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the Marvell Loki (88RC8480) SoC.

480 481
config ARCH_MV78XX0
	bool "Marvell MV78xx0"
482
	select CPU_FEROCEON
483
	select PCI
484
	select GENERIC_GPIO
485
	select ARCH_REQUIRE_GPIOLIB
486 487 488 489 490 491 492
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell MV78xx0 series SoCs:
	  MV781x0, MV782x0.

493
config ARCH_ORION5X
494 495
	bool "Marvell Orion"
	depends on MMU
496
	select CPU_FEROCEON
T
Tzachi Perelstein 已提交
497
	select PCI
T
Tzachi Perelstein 已提交
498
	select GENERIC_GPIO
499
	select ARCH_REQUIRE_GPIOLIB
500 501
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
L
Lennert Buytenhek 已提交
502
	select PLAT_ORION
503
	help
504
	  Support for the following Marvell Orion 5x series SoCs:
505
	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
506
	  Orion-2 (5281), Orion-1-90 (6183).
507

508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546
config ARCH_MMP
	bool "Marvell PXA168/910"
	depends on MMU
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select HAVE_CLK
	select COMMON_CLKDEV
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select TICK_ONESHOT
	select PLAT_PXA
	help
	  Support for Marvell's PXA168/910 processor line.

config ARCH_KS8695
	bool "Micrel/Kendin KS8695"
	select CPU_ARM922T
	select GENERIC_GPIO
        select ARCH_REQUIRE_GPIOLIB
	help
	  Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
	  System-on-Chip devices.

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

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

config ARCH_W90X900
	bool "Nuvoton W90X900 CPU"
	select CPU_ARM926T
547 548
	select ARCH_REQUIRE_GPIOLIB
	select GENERIC_GPIO
549
	select HAVE_CLK
550
	select COMMON_CLKDEV
551 552
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
553
	help
554 555 556 557 558 559 560
	  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>
561

562 563
config ARCH_PNX4008
	bool "Philips Nexperia PNX4008 Mobile"
564
	select CPU_ARM926T
565
	select HAVE_CLK
566 567 568
	help
	  This enables support for Philips PNX4008 mobile platform.

L
Linus Torvalds 已提交
569
config ARCH_PXA
E
eric miao 已提交
570
	bool "PXA2xx/PXA3xx-based"
571
	depends on MMU
572
	select ARCH_MTD_XIP
573
	select ARCH_HAS_CPUFREQ
D
David Brownell 已提交
574
	select GENERIC_GPIO
575
	select HAVE_CLK
576
	select COMMON_CLKDEV
M
Michael Buesch 已提交
577
	select ARCH_REQUIRE_GPIOLIB
578
	select GENERIC_TIME
579
	select GENERIC_CLOCKEVENTS
580
	select TICK_ONESHOT
581
	select PLAT_PXA
582
	help
E
eric miao 已提交
583
	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
L
Linus Torvalds 已提交
584

585 586 587
config ARCH_MSM
	bool "Qualcomm MSM"
	select CPU_V6
588 589 590
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	help
591 592 593 594
	  Support for Qualcomm MSM7K based systems.  This runs on the ARM11
	  apps processor of the MSM7K and depends on a shared memory
	  interface to the ARM9 modem processor which runs the baseband stack
	  and controls some vital subsystems (clock and power control, etc).
595

L
Linus Torvalds 已提交
596 597 598 599 600
config ARCH_RPC
	bool "RiscPC"
	select ARCH_ACORN
	select FIQ
	select TIMER_ACORN
601
	select ARCH_MAY_HAVE_PC_FDC
602
	select HAVE_PATA_PLATFORM
603
	select ISA_DMA_API
A
Al Viro 已提交
604
	select NO_IOPORT
605
	select ARCH_SPARSEMEM_ENABLE
L
Linus Torvalds 已提交
606 607 608 609 610 611
	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"
612
	select CPU_SA1100
613
	select ISA
614
	select ARCH_SPARSEMEM_ENABLE
615
	select ARCH_MTD_XIP
616
	select ARCH_HAS_CPUFREQ
R
Russell King 已提交
617
	select CPU_FREQ
D
David Brownell 已提交
618
	select GENERIC_GPIO
619
	select GENERIC_TIME
620
	select GENERIC_CLOCKEVENTS
621
	select HAVE_CLK
622
	select TICK_ONESHOT
M
Michael Buesch 已提交
623
	select ARCH_REQUIRE_GPIOLIB
624 625
	help
	  Support for StrongARM 11x0 based boards.
L
Linus Torvalds 已提交
626 627

config ARCH_S3C2410
628
	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
D
David Brownell 已提交
629
	select GENERIC_GPIO
B
Ben Dooks 已提交
630
	select ARCH_HAS_CPUFREQ
631
	select HAVE_CLK
L
Linus Torvalds 已提交
632 633 634
	help
	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
635
	  the Samsung SMDK2410 development board (and derivatives).
L
Linus Torvalds 已提交
636

B
Ben Dooks 已提交
637 638 639 640
config ARCH_S3C64XX
	bool "Samsung S3C64XX"
	select GENERIC_GPIO
	select HAVE_CLK
641
	select ARCH_HAS_CPUFREQ
B
Ben Dooks 已提交
642 643 644
	help
	  Samsung S3C64XX series based systems

645 646 647 648 649
config ARCH_S5PC1XX
	bool "Samsung S5PC1XX"
	select GENERIC_GPIO
	select HAVE_CLK
	select CPU_V7
650
	select ARM_L1_CACHE_SHIFT_6
651 652 653
	help
	  Samsung S5PC1XX series based systems

L
Linus Torvalds 已提交
654 655
config ARCH_SHARK
	bool "Shark"
656
	select CPU_SA110
657 658
	select ISA
	select ISA_DMA
659
	select ZONE_DMA
660
	select PCI
661 662 663
	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
664 665 666

config ARCH_LH7A40X
	bool "Sharp LH7A40X"
667
	select CPU_ARM922T
668 669
	select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
L
Linus Torvalds 已提交
670 671 672 673 674 675
	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.

676 677 678 679
config ARCH_U300
	bool "ST-Ericsson U300 Series"
	depends on MMU
	select CPU_ARM926T
680
	select HAVE_TCM
681 682 683 684 685 686 687 688 689 690
	select ARM_AMBA
	select ARM_VIC
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select HAVE_CLK
	select COMMON_CLKDEV
	select GENERIC_GPIO
	help
	  Support for ST-Ericsson U300 series mobile platforms.

691 692
config ARCH_DAVINCI
	bool "TI DaVinci"
693
	select CPU_ARM926T
694 695
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
696
	select GENERIC_GPIO
697
	select ARCH_REQUIRE_GPIOLIB
698
	select HAVE_CLK
699
	select ZONE_DMA
700
	select HAVE_IDE
701
	select COMMON_CLKDEV
D
David Brownell 已提交
702
	select GENERIC_ALLOCATOR
703
	select ARCH_HAS_HOLES_MEMORYMODEL
704 705 706
	help
	  Support for TI's DaVinci platform.

707 708 709
config ARCH_OMAP
	bool "TI OMAP"
	select GENERIC_GPIO
710
	select HAVE_CLK
M
Michael Buesch 已提交
711
	select ARCH_REQUIRE_GPIOLIB
712
	select ARCH_HAS_CPUFREQ
713
	select GENERIC_TIME
714
	select GENERIC_CLOCKEVENTS
715 716 717
	help
	  Support for TI's OMAP platform (OMAP1 and OMAP2).

718 719 720 721 722 723 724 725 726 727 728 729
config ARCH_BCMRING
	bool "Broadcom BCMRING"
	depends on MMU
	select CPU_V6
	select ARM_AMBA
	select COMMON_CLKDEV
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select ARCH_WANT_OPTIONAL_GPIOLIB
	help
	  Support for Broadcom's BCMRing platform.

730 731 732 733 734 735 736 737 738 739
config ARCH_U8500
	bool "ST-Ericsson U8500 Series"
	select CPU_V7
	select ARM_AMBA
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select COMMON_CLKDEV
	help
	  Support for ST-Ericsson's Ux500 architecture

L
Linus Torvalds 已提交
740 741 742 743
endchoice

source "arch/arm/mach-clps711x/Kconfig"

744 745
source "arch/arm/mach-ep93xx/Kconfig"

L
Linus Torvalds 已提交
746 747
source "arch/arm/mach-footbridge/Kconfig"

748 749
source "arch/arm/mach-gemini/Kconfig"

L
Linus Torvalds 已提交
750 751
source "arch/arm/mach-integrator/Kconfig"

752 753 754
source "arch/arm/mach-iop32x/Kconfig"

source "arch/arm/mach-iop33x/Kconfig"
L
Linus Torvalds 已提交
755

756 757
source "arch/arm/mach-iop13xx/Kconfig"

L
Linus Torvalds 已提交
758 759 760 761
source "arch/arm/mach-ixp4xx/Kconfig"

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

762 763
source "arch/arm/mach-ixp23xx/Kconfig"

764 765
source "arch/arm/mach-loki/Kconfig"

766 767
source "arch/arm/mach-mv78xx0/Kconfig"

L
Linus Torvalds 已提交
768
source "arch/arm/mach-pxa/Kconfig"
769
source "arch/arm/plat-pxa/Kconfig"
L
Linus Torvalds 已提交
770

771 772
source "arch/arm/mach-mmp/Kconfig"

L
Linus Torvalds 已提交
773 774
source "arch/arm/mach-sa1100/Kconfig"

775 776 777
source "arch/arm/plat-omap/Kconfig"

source "arch/arm/mach-omap1/Kconfig"
L
Linus Torvalds 已提交
778

779 780
source "arch/arm/mach-omap2/Kconfig"

781
source "arch/arm/mach-orion5x/Kconfig"
782

783
source "arch/arm/mach-kirkwood/Kconfig"
784

785 786
source "arch/arm/mach-dove/Kconfig"

787
source "arch/arm/plat-samsung/Kconfig"
788
source "arch/arm/plat-s3c24xx/Kconfig"
B
Ben Dooks 已提交
789
source "arch/arm/plat-s3c64xx/Kconfig"
790
source "arch/arm/plat-s3c/Kconfig"
791
source "arch/arm/plat-s5pc1xx/Kconfig"
792 793 794

if ARCH_S3C2410
source "arch/arm/mach-s3c2400/Kconfig"
L
Linus Torvalds 已提交
795
source "arch/arm/mach-s3c2410/Kconfig"
796 797 798
source "arch/arm/mach-s3c2412/Kconfig"
source "arch/arm/mach-s3c2440/Kconfig"
source "arch/arm/mach-s3c2442/Kconfig"
799
source "arch/arm/mach-s3c2443/Kconfig"
800
endif
L
Linus Torvalds 已提交
801

B
Ben Dooks 已提交
802 803 804 805 806
if ARCH_S3C64XX
source "arch/arm/mach-s3c6400/Kconfig"
source "arch/arm/mach-s3c6410/Kconfig"
endif

807 808
source "arch/arm/plat-stmp3xxx/Kconfig"

809 810 811 812
if ARCH_S5PC1XX
source "arch/arm/mach-s5pc100/Kconfig"
endif

L
Linus Torvalds 已提交
813 814 815 816 817 818
source "arch/arm/mach-lh7a40x/Kconfig"

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

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

819 820
source "arch/arm/mach-aaec2000/Kconfig"

821 822
source "arch/arm/mach-realview/Kconfig"

823
source "arch/arm/mach-at91/Kconfig"
824

825 826
source "arch/arm/plat-mxc/Kconfig"

827
source "arch/arm/mach-nomadik/Kconfig"
828
source "arch/arm/plat-nomadik/Kconfig"
829

830 831
source "arch/arm/mach-netx/Kconfig"

832 833
source "arch/arm/mach-ns9xxx/Kconfig"

834 835
source "arch/arm/mach-davinci/Kconfig"

836 837
source "arch/arm/mach-ks8695/Kconfig"

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

840 841
source "arch/arm/mach-u300/Kconfig"

842 843
source "arch/arm/mach-w90x900/Kconfig"

844 845
source "arch/arm/mach-bcmring/Kconfig"

846 847
source "arch/arm/mach-ux500/Kconfig"

L
Linus Torvalds 已提交
848 849 850 851
# Definitions to make life easier
config ARCH_ACORN
	bool

852 853
config PLAT_IOP
	bool
M
Mikael Pettersson 已提交
854
	select GENERIC_CLOCKEVENTS
M
Mikael Pettersson 已提交
855
	select GENERIC_TIME
856

L
Lennert Buytenhek 已提交
857 858 859
config PLAT_ORION
	bool

860 861 862
config PLAT_PXA
	bool

L
Linus Torvalds 已提交
863 864
source arch/arm/mm/Kconfig

865 866
config IWMMXT
	bool "Enable iWMMXt support"
867 868
	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
	default y if PXA27x || PXA3xx || ARCH_MMP
869 870 871 872
	help
	  Enable support for iWMMXt context switching at run time if
	  running on a CPU that supports it.

L
Linus Torvalds 已提交
873 874 875 876 877 878
#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
config XSCALE_PMU
	bool
	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
	default y

879 880 881 882
if !MMU
source "arch/arm/Kconfig-nommu"
endif

883 884 885 886 887 888 889 890 891
config ARM_ERRATA_411920
	bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
	depends on CPU_V6 && !SMP
	help
	  Invalidation of the Instruction Cache operation can
	  fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
	  It does not affect the MPCore. This option enables the ARM Ltd.
	  recommended workaround.

892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907
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.

908 909 910 911 912 913 914 915 916 917 918 919 920
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.

921 922 923 924 925 926 927 928 929 930 931 932
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.

933 934 935 936 937 938 939 940 941 942 943 944 945
config PL310_ERRATA_588369
	bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
	depends on CACHE_L2X0 && ARCH_OMAP4
	help
	   The PL310 L2 cache controller implements three types of Clean &
	   Invalidate maintenance operations: by Physical Address
	   (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
	   They are architecturally defined to behave as the execution of a
	   clean operation followed immediately by an invalidate operation,
	   both performing to the same memory location. This functionality
	   is not correctly implemented in PL310 as clean lines are not
	   invalidated as a result of these operations. Note that this errata
	   uses Texas Instrument's secure monitor api.
L
Linus Torvalds 已提交
946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968
endmenu

source "arch/arm/common/Kconfig"

config FORCE_MAX_ZONEORDER
	int
	depends on SA1111
	default "9"

menu "Bus support"

config ARM_AMBA
	bool

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

969
# Select ISA DMA controller support
L
Linus Torvalds 已提交
970 971
config ISA_DMA
	bool
972
	select ISA_DMA_API
L
Linus Torvalds 已提交
973

974
# Select ISA DMA interface
A
Al Viro 已提交
975 976 977
config ISA_DMA_API
	bool

L
Linus Torvalds 已提交
978
config PCI
M
Mike Rapoport 已提交
979
	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
L
Linus Torvalds 已提交
980 981 982 983 984 985
	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.

986 987 988
config PCI_SYSCALL
	def_bool PCI

L
Linus Torvalds 已提交
989 990 991 992 993 994
# Select the host bridge type
config PCI_HOST_VIA82C505
	bool
	depends on PCI && ARCH_SHARK
	default y

M
Mike Rapoport 已提交
995 996 997 998 999 1000
config PCI_HOST_ITE8152
	bool
	depends on PCI && MACH_ARMCORE
	default y
	select DMABOUNCE

L
Linus Torvalds 已提交
1001 1002 1003 1004 1005 1006 1007 1008
source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

endmenu

menu "Kernel Features"

1009 1010
source "kernel/time/Kconfig"

L
Linus Torvalds 已提交
1011 1012
config SMP
	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
1013
	depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
1014
		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
1015
	depends on GENERIC_CLOCKEVENTS
1016
	select USE_GENERIC_SMP_HELPERS
1017
	select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
L
Linus Torvalds 已提交
1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028
	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
1029
	  See also <file:Documentation/i386/IO-APIC.txt>,
L
Linus Torvalds 已提交
1030 1031 1032 1033 1034
	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
	  <http://www.linuxdoc.org/docs.html#howto>.

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

1035 1036 1037 1038 1039 1040
config HAVE_ARM_SCU
	bool
	depends on SMP
	help
	  This option enables support for the ARM system coherency unit

1041 1042 1043 1044 1045 1046
config HAVE_ARM_TWD
	bool
	depends on SMP
	help
	  This options enables support for the ARM timer and watchdog unit

1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069
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
1070 1071 1072 1073 1074 1075
config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
	default "4"

1076 1077 1078 1079 1080 1081 1082
config HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
	depends on SMP && HOTPLUG && EXPERIMENTAL
	help
	  Say Y here to experiment with turning CPUs off and on.  CPUs
	  can be controlled through /sys/devices/system/cpu.

1083 1084
config LOCAL_TIMERS
	bool "Use local timer interrupts"
1085
	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1086
		REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
1087
	default y
1088
	select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
1089 1090 1091 1092 1093 1094
	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.

1095
source kernel/Kconfig.preempt
L
Linus Torvalds 已提交
1096

1097 1098 1099 1100
config HZ
	int
	default 128 if ARCH_L7200
	default 200 if ARCH_EBSA110 || ARCH_S3C2410
1101
	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
1102
	default AT91_TIMER_HZ if ARCH_AT91
1103 1104
	default 100

1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116
config THUMB2_KERNEL
	bool "Compile the kernel in Thumb-2 mode"
	depends on CPU_V7 && EXPERIMENTAL
	select AEABI
	select ARM_ASM_UNIFIED
	help
	  By enabling this option, the kernel will be compiled in
	  Thumb-2 mode. A compiler/assembler that understand the unified
	  ARM-Thumb syntax is needed.

	  If unsure, say N.

1117 1118 1119
config ARM_ASM_UNIFIED
	bool

1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134
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.

1135
config OABI_COMPAT
1136
	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
1137
	depends on AEABI && EXPERIMENTAL
1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151
	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.

1152
config ARCH_HAS_HOLES_MEMORYMODEL
1153 1154
	bool

1155
# Discontigmem is deprecated
1156
config ARCH_DISCONTIGMEM_ENABLE
L
Linus Torvalds 已提交
1157 1158
	bool

1159 1160 1161
config ARCH_SPARSEMEM_ENABLE
	bool

1162 1163 1164
config ARCH_SPARSEMEM_DEFAULT
	def_bool ARCH_SPARSEMEM_ENABLE

1165
config ARCH_SELECT_MEMORY_MODEL
1166
	def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
1167

Y
Yasunori Goto 已提交
1168 1169 1170 1171 1172 1173
config NODES_SHIFT
	int
	default "4" if ARCH_LH7A40X
	default "2"
	depends on NEED_MULTIPLE_NODES

N
Nicolas Pitre 已提交
1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190
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
1191 1192 1193 1194 1195
config HIGHPTE
	bool "Allocate 2nd-level pagetables from highmem"
	depends on HIGHMEM
	depends on !OUTER_CACHE

1196 1197
source "mm/Kconfig"

L
Linus Torvalds 已提交
1198 1199
config LEDS
	bool "Timer and CPU usage LEDs"
1200
	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
1201
		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
L
Linus Torvalds 已提交
1202 1203
		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
1204
		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
1205
		   ARCH_AT91 || ARCH_DAVINCI || \
1206
		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
L
Linus Torvalds 已提交
1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219
	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
1220 1221
			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			    || MACH_OMAP_PERSEUS2
L
Linus Torvalds 已提交
1222
	depends on LEDS
1223
	depends on !GENERIC_CLOCKEVENTS
L
Linus Torvalds 已提交
1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237
	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
1238 1239 1240
			!ARCH_OMAP) \
			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			|| MACH_OMAP_PERSEUS2
L
Linus Torvalds 已提交
1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252
	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
1253
	depends on CPU_CP15_MMU
L
Linus Torvalds 已提交
1254
	default y if !ARCH_EBSA110
1255
	select HAVE_PROC_CPU if PROC_FS
L
Linus Torvalds 已提交
1256
	help
1257
	  ARM processors cannot fetch/store information which is not
L
Linus Torvalds 已提交
1258 1259 1260 1261 1262 1263 1264
	  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.

1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280
config UACCESS_WITH_MEMCPY
	bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
	depends on MMU && EXPERIMENTAL
	default y if CPU_FEROCEON
	help
	  Implement faster copy_to_user and clear_user methods for CPU
	  cores where a 8-word STM instruction give significantly higher
	  memory write throughput than a sequence of individual 32bit stores.

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

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

L
Linus Torvalds 已提交
1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301
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
1302 1303 1304 1305 1306 1307
	  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
1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357

	  If ZBOOT_ROM is not enabled, this has no effect.

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

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

config XIP_KERNEL
	bool "Kernel Execute-In-Place from ROM"
	depends on !ZBOOT_ROM
	help
	  Execute-In-Place allows the kernel to run from non-volatile storage
	  directly addressable by the CPU, such as NOR flash. This saves RAM
	  space since the text section of the kernel is not loaded from flash
	  to RAM.  Read-write sections, such as the data section and stack,
	  are still copied to RAM.  The XIP kernel is not compressed since
	  it has to run directly from flash, so it will take more space to
	  store it.  The flash address used to link the kernel object files,
	  and for storing it, is configuration dependent. Therefore, if you
	  say Y here, you must know the proper physical address where to
	  store the kernel image depending on your own flash memory usage.

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

	  If unsure, say N.

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

R
Richard Purdie 已提交
1358 1359 1360 1361 1362 1363
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
1364
	  but it is independent of the system firmware.   And like a reboot
R
Richard Purdie 已提交
1365 1366 1367 1368 1369 1370 1371
	  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.

1372 1373
config ATAGS_PROC
	bool "Export atags in procfs"
1374 1375
	depends on KEXEC
	default y
1376 1377 1378 1379
	help
	  Should the atags used to boot the kernel be exported in an "atags"
	  file in procfs. Useful with kexec.

L
Linus Torvalds 已提交
1380 1381
endmenu

1382
menu "CPU Power Management"
L
Linus Torvalds 已提交
1383

1384
if ARCH_HAS_CPUFREQ
L
Linus Torvalds 已提交
1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404

source "drivers/cpufreq/Kconfig"

config CPU_FREQ_SA1100
	bool

config CPU_FREQ_SA1110
	bool

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

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

	  If in doubt, say Y.

R
Russell King 已提交
1405 1406 1407 1408 1409 1410
config CPU_FREQ_PXA
	bool
	depends on CPU_FREQ && ARCH_PXA && PXA25x
	default y
	select CPU_FREQ_DEFAULT_GOV_USERSPACE

1411 1412 1413 1414
config CPU_FREQ_S3C64XX
	bool "CPUfreq support for Samsung S3C64XX CPUs"
	depends on CPU_FREQ && CPU_S3C6410

B
Ben Dooks 已提交
1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454
config CPU_FREQ_S3C
	bool
	help
	  Internal configuration node for common cpufreq on Samsung SoC

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

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

	  If in doubt, say N.

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

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

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

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

1455 1456 1457 1458 1459 1460
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
1461 1462
endif

1463 1464 1465 1466
source "drivers/cpuidle/Kconfig"

endmenu

L
Linus Torvalds 已提交
1467 1468 1469 1470 1471 1472
menu "Floating point emulation"

comment "At least one emulation must be selected"

config FPE_NWFPE
	bool "NWFPE math emulation"
1473
	depends on !AEABI || OABI_COMPAT
L
Linus Torvalds 已提交
1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484
	---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"
1485
	depends on FPE_NWFPE
L
Linus Torvalds 已提交
1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496
	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)"
1497
	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
L
Linus Torvalds 已提交
1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510
	---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
1511
	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
L
Linus Torvalds 已提交
1512 1513 1514 1515 1516 1517 1518 1519 1520
	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.

1521 1522 1523 1524 1525
config VFPv3
	bool
	depends on VFP
	default y if CPU_V7

1526 1527 1528 1529 1530 1531 1532
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
1533 1534 1535 1536 1537 1538 1539 1540
endmenu

menu "Userspace binary formats"

source "fs/Kconfig.binfmt"

config ARTHUR
	tristate "RISC OS personality"
1541
	depends on !AEABI
L
Linus Torvalds 已提交
1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552
	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
1553
source "kernel/power/Kconfig"
L
Linus Torvalds 已提交
1554

J
Johannes Berg 已提交
1555 1556 1557
config ARCH_SUSPEND_POSSIBLE
	def_bool y

L
Linus Torvalds 已提交
1558 1559
endmenu

1560 1561
source "net/Kconfig"

1562
source "drivers/Kconfig"
L
Linus Torvalds 已提交
1563 1564 1565 1566 1567 1568 1569 1570 1571 1572

source "fs/Kconfig"

source "arch/arm/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"