Kconfig 36.2 KB
Newer Older
Linus Torvalds's avatar
Linus Torvalds committed
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
Adrian Bunk's avatar
Adrian Bunk committed
12
	select HAVE_IDE
13
	select RTC_LIB
14
	select SYS_SUPPORTS_APM_EMULATION
Mathieu Desnoyers's avatar
Mathieu Desnoyers committed
15
	select HAVE_OPROFILE
Jason Wessel's avatar
Jason Wessel committed
16
	select HAVE_ARCH_KGDB
Mathieu Desnoyers's avatar
Mathieu Desnoyers committed
17
	select HAVE_KPROBES if (!XIP_KERNEL)
18
	select HAVE_KRETPROBES if (HAVE_KPROBES)
19
	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
20
	select HAVE_GENERIC_DMA_COHERENT
Linus Torvalds's avatar
Linus Torvalds committed
21
22
	help
	  The ARM series is a line of low-power-consumption RISC chip designs
23
	  licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds's avatar
Linus Torvalds committed
24
	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
25
	  manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds's avatar
Linus Torvalds committed
26
27
28
	  Europe.  There is an ARM Linux project with a web page at
	  <http://www.arm.linux.org.uk/>.

29
30
31
config HAVE_PWM
	bool

32
33
34
config SYS_SUPPORTS_APM_EMULATION
	bool

35
36
37
38
config GENERIC_GPIO
	bool
	default n

39
40
41
42
config GENERIC_TIME
	bool
	default n

43
44
45
46
config GENERIC_CLOCKEVENTS
	bool
	default n

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

Linus Torvalds's avatar
Linus Torvalds committed
52
53
54
55
config MMU
	bool
	default y

Al Viro's avatar
Al Viro committed
56
57
58
59
config NO_IOPORT
	bool
	default n

Linus Torvalds's avatar
Linus Torvalds committed
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
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.

86
87
88
89
config GENERIC_HARDIRQS
	bool
	default y

90
91
92
93
config STACKTRACE_SUPPORT
	bool
	default y

Nicolas Pitre's avatar
Nicolas Pitre committed
94
95
96
97
98
config HAVE_LATENCYTOP_SUPPORT
	bool
	depends on !SMP
	default y

99
100
101
102
config LOCKDEP_SUPPORT
	bool
	default y

Russell King's avatar
Russell King committed
103
104
105
106
config TRACE_IRQFLAGS_SUPPORT
	bool
	default y

107
108
109
110
111
112
113
114
config HARDIRQS_SW_RESEND
	bool
	default y

config GENERIC_IRQ_PROBE
	bool
	default y

Nick Piggin's avatar
Nick Piggin committed
115
116
117
118
119
config GENERIC_LOCKBREAK
	bool
	default y
	depends on SMP && PREEMPT

Linus Torvalds's avatar
Linus Torvalds committed
120
121
122
123
124
125
126
config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

127
128
129
130
131
132
133
134
config ARCH_HAS_ILOG2_U32
	bool
	default n

config ARCH_HAS_ILOG2_U64
	bool
	default n

135
136
137
138
config GENERIC_HWEIGHT
	bool
	default y

Linus Torvalds's avatar
Linus Torvalds committed
139
140
141
142
config GENERIC_CALIBRATE_DELAY
	bool
	default y

143
144
145
config ARCH_MAY_HAVE_PC_FDC
	bool

146
147
148
config ZONE_DMA
	bool

Linus Torvalds's avatar
Linus Torvalds committed
149
150
151
152
153
154
config GENERIC_ISA_DMA
	bool

config FIQ
	bool

155
156
157
config ARCH_MTD_XIP
	bool

158
159
160
config GENERIC_HARDIRQS_NO__DO_IRQ
	def_bool y

161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
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

176
177
178
179
180
config OPROFILE_ARMV7
	def_bool y
	depends on CPU_V7 && !SMP
	bool

181
182
endif

183
184
config VECTORS_BASE
	hex
185
	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
186
187
188
189
190
	default DRAM_BASE if REMAP_VECTORS_TO_RAM
	default 0x00000000
	help
	  The base address of exception vectors.

Linus Torvalds's avatar
Linus Torvalds committed
191
192
source "init/Kconfig"

193
194
source "kernel/Kconfig.freezer"

Linus Torvalds's avatar
Linus Torvalds committed
195
196
197
198
menu "System Type"

choice
	prompt "ARM system type"
199
	default ARCH_VERSATILE
Linus Torvalds's avatar
Linus Torvalds committed
200

201
202
config ARCH_AAEC2000
	bool "Agilent AAEC-2000 based"
203
	select CPU_ARM920T
204
	select ARM_AMBA
205
	select HAVE_CLK
206
207
208
209
210
211
	help
	  This enables support for systems based on the Agilent AAEC-2000

config ARCH_INTEGRATOR
	bool "ARM Ltd. Integrator family"
	select ARM_AMBA
212
	select HAVE_CLK
213
	select COMMON_CLKDEV
214
215
216
217
218
219
220
	select ICST525
	help
	  Support for ARM's Integrator platform.

config ARCH_REALVIEW
	bool "ARM Ltd. RealView family"
	select ARM_AMBA
221
	select HAVE_CLK
222
	select COMMON_CLKDEV
223
	select ICST307
224
	select GENERIC_TIME
225
	select GENERIC_CLOCKEVENTS
226
227
228
229
230
231
232
	help
	  This enables support for ARM Ltd RealView boards.

config ARCH_VERSATILE
	bool "ARM Ltd. Versatile family"
	select ARM_AMBA
	select ARM_VIC
233
	select HAVE_CLK
234
	select COMMON_CLKDEV
235
	select ICST307
236
	select GENERIC_TIME
237
	select GENERIC_CLOCKEVENTS
238
239
240
	help
	  This enables support for ARM Ltd Versatile board.

241
242
config ARCH_AT91
	bool "Atmel AT91"
243
	select GENERIC_GPIO
244
	select ARCH_REQUIRE_GPIOLIB
David Brownell's avatar
David Brownell committed
245
	select HAVE_CLK
246
	help
247
248
	  This enables support for systems based on the Atmel AT91RM9200,
	  AT91SAM9 and AT91CAP9 processors.
249

Linus Torvalds's avatar
Linus Torvalds committed
250
config ARCH_CLPS711X
251
	bool "Cirrus Logic CLPS711x/EP721x-based"
252
	select CPU_ARM720T
253
254
	help
	  Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds's avatar
Linus Torvalds committed
255
256
257

config ARCH_EBSA110
	bool "EBSA-110"
258
	select CPU_SA110
259
	select ISA
260
	select NO_IOPORT
Linus Torvalds's avatar
Linus Torvalds committed
261
262
	help
	  This is an evaluation board for the StrongARM processor available
263
	  from Digital. It has limited hardware on-board, including an
Linus Torvalds's avatar
Linus Torvalds committed
264
265
266
	  Ethernet interface, two PCMCIA sockets, two serial ports and a
	  parallel port.

267
268
config ARCH_EP93XX
	bool "EP93xx-based"
269
	select CPU_ARM920T
270
271
	select ARM_AMBA
	select ARM_VIC
272
	select GENERIC_GPIO
273
	select HAVE_CLK
274
	select COMMON_CLKDEV
Michael Buesch's avatar
Michael Buesch committed
275
	select ARCH_REQUIRE_GPIOLIB
276
	select ARCH_HAS_HOLES_MEMORYMODEL
277
278
279
	help
	  This enables support for the Cirrus EP93xx series of CPUs.

280
281
282
config ARCH_GEMINI
	bool "Cortina Systems Gemini"
	select CPU_FA526
283
284
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
285
286
287
	help
	  Support for the Cortina Systems Gemini family SoCs

Linus Torvalds's avatar
Linus Torvalds committed
288
289
config ARCH_FOOTBRIDGE
	bool "FootBridge"
290
	select CPU_SA110
Linus Torvalds's avatar
Linus Torvalds committed
291
	select FOOTBRIDGE
292
293
294
	help
	  Support for systems based on the DC21285 companion chip
	  ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds's avatar
Linus Torvalds committed
295

296
297
config ARCH_NETX
	bool "Hilscher NetX based"
298
	select CPU_ARM926T
299
	select ARM_VIC
300
	select GENERIC_CLOCKEVENTS
Uwe Kleine-König's avatar
Uwe Kleine-König committed
301
	select GENERIC_TIME
302
	help
303
304
305
306
	  This enables support for systems based on the Hilscher NetX Soc

config ARCH_H720X
	bool "Hynix HMS720x-based"
307
	select CPU_ARM720T
308
309
310
311
312
313
	select ISA_DMA_API
	help
	  This enables support for systems based on the Hynix HMS720x

config ARCH_IMX
	bool "IMX"
314
	select CPU_ARM920T
315
	select GENERIC_GPIO
316
317
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
318
319
	help
	  Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds's avatar
Linus Torvalds committed
320

321
322
323
config ARCH_IOP13XX
	bool "IOP13xx-based"
	depends on MMU
324
	select CPU_XSC3
325
326
327
	select PLAT_IOP
	select PCI
	select ARCH_SUPPORTS_MSI
328
	select VMSPLIT_1G
329
330
331
	help
	  Support for Intel's IOP13XX (XScale) family of processors.

332
333
config ARCH_IOP32X
	bool "IOP32x-based"
334
	depends on MMU
335
	select CPU_XSCALE
336
	select PLAT_IOP
337
	select PCI
338
	select GENERIC_GPIO
339
	select ARCH_REQUIRE_GPIOLIB
340
	help
341
342
343
344
345
346
	  Support for Intel's 80219 and IOP32X (XScale) family of
	  processors.

config ARCH_IOP33X
	bool "IOP33x-based"
	depends on MMU
347
	select CPU_XSCALE
348
	select PLAT_IOP
349
	select PCI
350
	select GENERIC_GPIO
351
	select ARCH_REQUIRE_GPIOLIB
352
353
	help
	  Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds's avatar
Linus Torvalds committed
354

355
356
config ARCH_IXP23XX
 	bool "IXP23XX-based"
357
	depends on MMU
358
	select CPU_XSC3
359
 	select PCI
360
	help
361
	  Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds's avatar
Linus Torvalds committed
362
363
364

config ARCH_IXP2000
	bool "IXP2400/2800-based"
365
	depends on MMU
366
	select CPU_XSCALE
367
	select PCI
368
369
	help
	  Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds's avatar
Linus Torvalds committed
370

371
372
config ARCH_IXP4XX
	bool "IXP4xx-based"
373
	depends on MMU
374
	select CPU_XSCALE
375
	select GENERIC_GPIO
376
377
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
378
	select DMABOUNCE if PCI
379
	help
380
	  Support for Intel's IXP4XX (XScale) family of processors.
381

Linus Torvalds's avatar
Linus Torvalds committed
382
383
config ARCH_L7200
	bool "LinkUp-L7200"
384
	select CPU_ARM720T
Linus Torvalds's avatar
Linus Torvalds committed
385
386
387
388
389
390
391
392
393
394
395
	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>.

396
397
config ARCH_KIRKWOOD
	bool "Marvell Kirkwood"
398
	select CPU_FEROCEON
399
	select PCI
400
	select GENERIC_GPIO
401
402
403
404
405
406
407
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell Kirkwood series SoCs:
	  88F6180, 88F6192 and 88F6281.

408
409
config ARCH_KS8695
	bool "Micrel/Kendin KS8695"
410
	select CPU_ARM922T
411
	select GENERIC_GPIO
412
        select ARCH_REQUIRE_GPIOLIB
413
414
415
416
	help
	  Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
	  System-on-Chip devices.

417
418
config ARCH_NS9XXX
	bool "NetSilicon NS9xxx"
419
	select CPU_ARM926T
420
	select GENERIC_GPIO
421
	select GENERIC_TIME
422
	select GENERIC_CLOCKEVENTS
423
	select HAVE_CLK
424
425
426
427
428
429
	help
	  Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
	  System.

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

430
431
config ARCH_LOKI
	bool "Marvell Loki (88RC8480)"
432
	select CPU_FEROCEON
433
434
435
436
437
438
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the Marvell Loki (88RC8480) SoC.

439
440
config ARCH_MV78XX0
	bool "Marvell MV78xx0"
441
	select CPU_FEROCEON
442
	select PCI
443
	select GENERIC_GPIO
444
445
446
447
448
449
450
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell MV78xx0 series SoCs:
	  MV781x0, MV782x0.

451
452
config ARCH_MXC
	bool "Freescale MXC/iMX-based"
453
454
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
455
	select ARCH_MTD_XIP
456
	select GENERIC_GPIO
457
	select ARCH_REQUIRE_GPIOLIB
458
	select HAVE_CLK
459
460
461
	help
	  Support for Freescale MXC/iMX-based family of processors

462
config ARCH_ORION5X
463
464
	bool "Marvell Orion"
	depends on MMU
465
	select CPU_FEROCEON
Tzachi Perelstein's avatar
Tzachi Perelstein committed
466
	select PCI
Tzachi Perelstein's avatar
Tzachi Perelstein committed
467
	select GENERIC_GPIO
468
469
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
Lennert Buytenhek's avatar
Lennert Buytenhek committed
470
	select PLAT_ORION
471
	help
472
	  Support for the following Marvell Orion 5x series SoCs:
473
	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
474
	  Orion-2 (5281), Orion-1-90 (6183).
475

476
477
config ARCH_PNX4008
	bool "Philips Nexperia PNX4008 Mobile"
478
	select CPU_ARM926T
479
	select HAVE_CLK
480
481
482
	help
	  This enables support for Philips PNX4008 mobile platform.

Linus Torvalds's avatar
Linus Torvalds committed
483
config ARCH_PXA
eric miao's avatar
eric miao committed
484
	bool "PXA2xx/PXA3xx-based"
485
	depends on MMU
486
	select ARCH_MTD_XIP
487
	select GENERIC_GPIO
488
	select HAVE_CLK
489
	select COMMON_CLKDEV
Michael Buesch's avatar
Michael Buesch committed
490
	select ARCH_REQUIRE_GPIOLIB
491
	select GENERIC_TIME
492
	select GENERIC_CLOCKEVENTS
493
	select TICK_ONESHOT
494
	select PLAT_PXA
495
	help
eric miao's avatar
eric miao committed
496
	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds's avatar
Linus Torvalds committed
497

498
config ARCH_MMP
499
	bool "Marvell PXA168/910"
500
	depends on MMU
501
502
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
503
504
505
506
507
508
509
	select HAVE_CLK
	select COMMON_CLKDEV
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select TICK_ONESHOT
	select PLAT_PXA
	help
510
	  Support for Marvell's PXA168/910 processor line.
511

Linus Torvalds's avatar
Linus Torvalds committed
512
513
514
515
516
config ARCH_RPC
	bool "RiscPC"
	select ARCH_ACORN
	select FIQ
	select TIMER_ACORN
517
	select ARCH_MAY_HAVE_PC_FDC
518
	select HAVE_PATA_PLATFORM
519
	select ISA_DMA_API
Al Viro's avatar
Al Viro committed
520
	select NO_IOPORT
521
	select ARCH_SPARSEMEM_ENABLE
Linus Torvalds's avatar
Linus Torvalds committed
522
523
524
525
526
527
	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"
528
	select CPU_SA1100
529
	select ISA
530
	select ARCH_SPARSEMEM_ENABLE
531
	select ARCH_MTD_XIP
532
	select GENERIC_GPIO
533
	select GENERIC_TIME
534
	select GENERIC_CLOCKEVENTS
535
	select HAVE_CLK
536
	select TICK_ONESHOT
Michael Buesch's avatar
Michael Buesch committed
537
	select ARCH_REQUIRE_GPIOLIB
538
539
	help
	  Support for StrongARM 11x0 based boards.
Linus Torvalds's avatar
Linus Torvalds committed
540
541

config ARCH_S3C2410
542
	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
543
	select GENERIC_GPIO
544
	select HAVE_CLK
Linus Torvalds's avatar
Linus Torvalds committed
545
546
547
	help
	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
548
	  the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds's avatar
Linus Torvalds committed
549

550
551
552
553
554
555
556
config ARCH_S3C64XX
	bool "Samsung S3C64XX"
	select GENERIC_GPIO
	select HAVE_CLK
	help
	  Samsung S3C64XX series based systems

Linus Torvalds's avatar
Linus Torvalds committed
557
558
config ARCH_SHARK
	bool "Shark"
559
	select CPU_SA110
560
561
	select ISA
	select ISA_DMA
562
	select ZONE_DMA
563
	select PCI
564
565
566
	help
	  Support for the StrongARM based Digital DNARD machine, also known
	  as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds's avatar
Linus Torvalds committed
567
568
569

config ARCH_LH7A40X
	bool "Sharp LH7A40X"
570
	select CPU_ARM922T
571
572
	select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds's avatar
Linus Torvalds committed
573
574
575
576
577
578
	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.

579
580
config ARCH_DAVINCI
	bool "TI DaVinci"
581
	select CPU_ARM926T
582
583
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
584
	select GENERIC_GPIO
585
	select ARCH_REQUIRE_GPIOLIB
586
	select HAVE_CLK
587
	select ZONE_DMA
588
	select HAVE_IDE
589
	select COMMON_CLKDEV
590
591
592
	help
	  Support for TI's DaVinci platform.

593
594
595
config ARCH_OMAP
	bool "TI OMAP"
	select GENERIC_GPIO
596
	select HAVE_CLK
Michael Buesch's avatar
Michael Buesch committed
597
	select ARCH_REQUIRE_GPIOLIB
598
	select GENERIC_TIME
599
	select GENERIC_CLOCKEVENTS
600
601
602
	help
	  Support for TI's OMAP platform (OMAP1 and OMAP2).

603
604
config ARCH_MSM
	bool "Qualcomm MSM"
605
	select CPU_V6
606
607
608
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	help
609
610
	  Support for Qualcomm MSM7K based systems.  This runs on the ARM11
	  apps processor of the MSM7K and depends on a shared memory
611
612
613
	  interface to the ARM9 modem processor which runs the baseband stack
	  and controls some vital subsystems (clock and power control, etc).

614
615
616
617
618
619
620
config ARCH_W90X900
	bool "Nuvoton W90X900 CPU"
	select CPU_ARM926T
	help
		Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
		can login www.mcuos.com or www.nuvoton.com to know more.

Linus Torvalds's avatar
Linus Torvalds committed
621
622
623
624
endchoice

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

625
626
source "arch/arm/mach-ep93xx/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
627
628
source "arch/arm/mach-footbridge/Kconfig"

629
630
source "arch/arm/mach-gemini/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
631
632
source "arch/arm/mach-integrator/Kconfig"

633
634
635
source "arch/arm/mach-iop32x/Kconfig"

source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds's avatar
Linus Torvalds committed
636

637
638
source "arch/arm/mach-iop13xx/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
639
640
641
642
source "arch/arm/mach-ixp4xx/Kconfig"

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

643
644
source "arch/arm/mach-ixp23xx/Kconfig"

645
646
source "arch/arm/mach-loki/Kconfig"

647
648
source "arch/arm/mach-mv78xx0/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
649
source "arch/arm/mach-pxa/Kconfig"
650
source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds's avatar
Linus Torvalds committed
651

652
653
source "arch/arm/mach-mmp/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
654
655
source "arch/arm/mach-sa1100/Kconfig"

656
657
658
source "arch/arm/plat-omap/Kconfig"

source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds's avatar
Linus Torvalds committed
659

660
661
source "arch/arm/mach-omap2/Kconfig"

662
source "arch/arm/mach-orion5x/Kconfig"
663

664
source "arch/arm/mach-kirkwood/Kconfig"
665

666
source "arch/arm/plat-s3c24xx/Kconfig"
667
source "arch/arm/plat-s3c64xx/Kconfig"
668
source "arch/arm/plat-s3c/Kconfig"
669
670
671

if ARCH_S3C2410
source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds's avatar
Linus Torvalds committed
672
source "arch/arm/mach-s3c2410/Kconfig"
673
674
675
source "arch/arm/mach-s3c2412/Kconfig"
source "arch/arm/mach-s3c2440/Kconfig"
source "arch/arm/mach-s3c2442/Kconfig"
676
source "arch/arm/mach-s3c2443/Kconfig"
677
endif
Linus Torvalds's avatar
Linus Torvalds committed
678

679
680
681
682
683
if ARCH_S3C64XX
source "arch/arm/mach-s3c6400/Kconfig"
source "arch/arm/mach-s3c6410/Kconfig"
endif

Linus Torvalds's avatar
Linus Torvalds committed
684
685
686
687
688
689
690
691
source "arch/arm/mach-lh7a40x/Kconfig"

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

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

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

692
693
source "arch/arm/mach-aaec2000/Kconfig"

694
695
source "arch/arm/mach-realview/Kconfig"

696
source "arch/arm/mach-at91/Kconfig"
697

698
699
source "arch/arm/plat-mxc/Kconfig"

700
701
source "arch/arm/mach-netx/Kconfig"

702
703
source "arch/arm/mach-ns9xxx/Kconfig"

704
705
source "arch/arm/mach-davinci/Kconfig"

706
707
source "arch/arm/mach-ks8695/Kconfig"

708
709
source "arch/arm/mach-msm/Kconfig"

710
711
source "arch/arm/mach-w90x900/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
712
713
714
715
# Definitions to make life easier
config ARCH_ACORN
	bool

716
717
718
config PLAT_IOP
	bool

Lennert Buytenhek's avatar
Lennert Buytenhek committed
719
720
721
config PLAT_ORION
	bool

722
723
724
config PLAT_PXA
	bool

Linus Torvalds's avatar
Linus Torvalds committed
725
726
source arch/arm/mm/Kconfig

727
728
config IWMMXT
	bool "Enable iWMMXt support"
729
730
	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
	default y if PXA27x || PXA3xx || ARCH_MMP
731
732
733
734
	help
	  Enable support for iWMMXt context switching at run time if
	  running on a CPU that supports it.

Linus Torvalds's avatar
Linus Torvalds committed
735
736
737
738
739
740
#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
config XSCALE_PMU
	bool
	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
	default y

741
742
743
744
if !MMU
source "arch/arm/Kconfig-nommu"
endif

745
746
747
748
749
750
751
752
753
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.

754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
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.

770
771
772
773
774
775
776
777
778
779
780
781
782
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.

783
784
785
786
787
788
789
790
791
792
793
794
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.

Linus Torvalds's avatar
Linus Torvalds committed
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
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.

818
# Select ISA DMA controller support
Linus Torvalds's avatar
Linus Torvalds committed
819
820
config ISA_DMA
	bool
821
	select ISA_DMA_API
Linus Torvalds's avatar
Linus Torvalds committed
822

823
# Select ISA DMA interface
824
825
826
config ISA_DMA_API
	bool

Linus Torvalds's avatar
Linus Torvalds committed
827
config PCI
Mike Rapoport's avatar
Mike Rapoport committed
828
	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds's avatar
Linus Torvalds committed
829
830
831
832
833
834
	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.

835
836
837
config PCI_SYSCALL
	def_bool PCI

Linus Torvalds's avatar
Linus Torvalds committed
838
839
840
841
842
843
# Select the host bridge type
config PCI_HOST_VIA82C505
	bool
	depends on PCI && ARCH_SHARK
	default y

Mike Rapoport's avatar
Mike Rapoport committed
844
845
846
847
848
849
config PCI_HOST_ITE8152
	bool
	depends on PCI && MACH_ARMCORE
	default y
	select DMABOUNCE

Linus Torvalds's avatar
Linus Torvalds committed
850
851
852
853
854
855
856
857
source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

endmenu

menu "Kernel Features"

858
859
source "kernel/time/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
860
861
config SMP
	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
862
	depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || MACH_REALVIEW_PB11MP)
863
	select USE_GENERIC_SMP_HELPERS
Linus Torvalds's avatar
Linus Torvalds committed
864
865
866
867
868
869
870
871
872
873
874
	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.

Adrian Bunk's avatar
Adrian Bunk committed
875
	  See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds's avatar
Linus Torvalds committed
876
877
878
879
880
	  <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.

881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
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

Linus Torvalds's avatar
Linus Torvalds committed
904
905
906
907
908
909
config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
	default "4"

910
911
912
913
914
915
916
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.

917
918
config LOCAL_TIMERS
	bool "Use local timer interrupts"
919
	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || REALVIEW_EB_A9MP)
920
921
922
923
924
925
926
	default y
	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.

Linus Torvalds's avatar
Linus Torvalds committed
927
928
929
930
931
932
933
934
935
936
937
938
939
config PREEMPT
	bool "Preemptible Kernel (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	help
	  This option reduces the latency of the kernel when reacting to
	  real-time or interactive events by allowing a low priority process to
	  be preempted even if it is in kernel mode executing a system call.
	  This allows applications to run more reliably even when the system is
	  under load.

	  Say Y here if you are building a kernel for a desktop, embedded
	  or real-time system.  Say N if you are unsure.

940
941
942
943
config HZ
	int
	default 128 if ARCH_L7200
	default 200 if ARCH_EBSA110 || ARCH_S3C2410
944
	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
945
	default AT91_TIMER_HZ if ARCH_AT91
946
947
	default 100

948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
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.

963
config OABI_COMPAT
964
	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
965
	depends on AEABI && EXPERIMENTAL
966
967
968
969
970
971
972
973
974
975
976
977
978
979
	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.

980
config ARCH_HAS_HOLES_MEMORYMODEL
981
	bool
982
	default n
983

984
# Discontigmem is deprecated
985
config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds's avatar
Linus Torvalds committed
986
987
	bool

988
989
990
config ARCH_SPARSEMEM_ENABLE
	bool

991
992
993
config ARCH_SPARSEMEM_DEFAULT
	def_bool ARCH_SPARSEMEM_ENABLE

994
config ARCH_SELECT_MEMORY_MODEL
995
	def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
996

997
998
999
1000
1001
1002
config NODES_SHIFT
	int
	default "4" if ARCH_LH7A40X
	default "2"
	depends on NEED_MULTIPLE_NODES

1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
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.

1020
1021
source "mm/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
1022
1023
config LEDS
	bool "Timer and CPU usage LEDs"
1024
	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Linus Torvalds's avatar
Linus Torvalds committed
1025
1026
1027
		   ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
1028
		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
1029
		   ARCH_AT91 || ARCH_DAVINCI || \
1030
		   ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds's avatar
Linus Torvalds committed
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
	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) || \
David Brownell's avatar
David Brownell committed
1044
1045
			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			    || MACH_OMAP_PERSEUS2
Linus Torvalds's avatar
Linus Torvalds committed
1046
	depends on LEDS
1047
	depends on !GENERIC_CLOCKEVENTS
Linus Torvalds's avatar
Linus Torvalds committed
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
	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 && \
David Brownell's avatar
David Brownell committed
1062
1063
1064
			!ARCH_OMAP) \
			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			|| MACH_OMAP_PERSEUS2
Linus Torvalds's avatar
Linus Torvalds committed
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
	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
1077
	depends on CPU_CP15_MMU
Linus Torvalds's avatar
Linus Torvalds committed
1078
1079
	default y if !ARCH_EBSA110
	help
1080
	  ARM processors cannot fetch/store information which is not
Linus Torvalds's avatar
Linus Torvalds committed
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
	  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.

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
1109
1110
1111
1112
1113
1114
	  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.
Linus Torvalds's avatar
Linus Torvalds committed
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164

	  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.

1165
1166
1167
1168
1169
1170
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
Matt LaPlante's avatar
Matt LaPlante committed
1171
	  but it is independent of the system firmware.   And like a reboot
1172
1173
1174
1175
1176
1177
1178
	  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.

1179
1180
config ATAGS_PROC
	bool "Export atags in procfs"
1181
1182
	depends on KEXEC
	default y
1183
1184
1185
1186
	help
	  Should the atags used to boot the kernel be exported in an "atags"
	  file in procfs. Useful with kexec.

Linus Torvalds's avatar
Linus Torvalds committed
1187
1188
endmenu

1189
menu "CPU Power Management"
Linus Torvalds's avatar
Linus Torvalds committed
1190

1191
if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds's avatar
Linus Torvalds committed
1192
1193
1194
1195
1196

source "drivers/cpufreq/Kconfig"

config CPU_FREQ_SA1100
	bool
1197
	depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
Linus Torvalds's avatar
Linus Torvalds committed
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
	default y

config CPU_FREQ_SA1110
	bool
	depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
	default y

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.

1216
1217
1218
1219
1220
1221
1222
1223
1224
config CPU_FREQ_IMX
	tristate "CPUfreq driver for i.MX CPUs"
	depends on ARCH_IMX && CPU_FREQ
	default n
	help
	  This enables the CPUfreq driver for i.MX CPUs.

	  If in doubt, say N.

Linus Torvalds's avatar
Linus Torvalds committed
1225
1226
endif

1227
1228
1229
1230
source "drivers/cpuidle/Kconfig"

endmenu

Linus Torvalds's avatar
Linus Torvalds committed
1231
1232
1233
1234
1235
1236
menu "Floating point emulation"

comment "At least one emulation must be selected"

config FPE_NWFPE
	bool "NWFPE math emulation"
1237
	depends on !AEABI || OABI_COMPAT
Linus Torvalds's avatar
Linus Torvalds committed
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
	---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"
1249
	depends on FPE_NWFPE
Linus Torvalds's avatar
Linus Torvalds committed
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
	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)"
1261
	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds's avatar
Linus Torvalds committed
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
	---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"
Russell King's avatar
Russell King committed
1275
	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds's avatar
Linus Torvalds committed
1276
1277
1278
1279
1280
1281
1282
1283
1284
	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.

1285
1286
1287
1288
1289
config VFPv3
	bool
	depends on VFP
	default y if CPU_V7

1290
1291
1292
1293
1294
1295
1296
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.

Linus Torvalds's avatar
Linus Torvalds committed
1297
1298
1299
1300
1301
1302
1303
1304
endmenu

menu "Userspace binary formats"

source "fs/Kconfig.binfmt"

config ARTHUR
	tristate "RISC OS personality"
1305
	depends on !AEABI
Linus Torvalds's avatar
Linus Torvalds committed
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
	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"

Russell King's avatar
Russell King committed
1317
source "kernel/power/Kconfig"
Linus Torvalds's avatar
Linus Torvalds committed
1318

Johannes Berg's avatar
Johannes Berg committed
1319
1320
1321
config ARCH_SUSPEND_POSSIBLE
	def_bool y

Linus Torvalds's avatar
Linus Torvalds committed
1322
1323
endmenu

1324
1325
source "net/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
1326
1327
1328
1329
menu "Device Drivers"

source "drivers/base/Kconfig"

Pavel Machek's avatar
Pavel Machek committed
1330
1331
source "drivers/connector/Kconfig"

1332
if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds's avatar
Linus Torvalds committed
1333
1334
1335
1336
1337
1338
1339
1340
1341
source "drivers/mtd/Kconfig"
endif

source "drivers/parport/Kconfig"

source "drivers/pnp/Kconfig"

source "drivers/block/Kconfig"

1342
1343
1344
1345
# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4

source "drivers/misc/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
1346
1347
1348
1349
source "drivers/ide/Kconfig"

source "drivers/scsi/Kconfig"

1350
1351
source "drivers/ata/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
1352
1353
1354
1355
1356
1357
1358
1359
source "drivers/md/Kconfig"

source "drivers/message/fusion/Kconfig"

source "drivers/ieee1394/Kconfig"

source "drivers/message/i2o/Kconfig"

1360
source "drivers/net/Kconfig"