Kconfig 30.3 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
Adrian Bunk's avatar
Adrian Bunk committed
11
	select HAVE_IDE
12
	select RTC_LIB
13
	select SYS_SUPPORTS_APM_EMULATION
Mathieu Desnoyers's avatar
Mathieu Desnoyers committed
14
	select HAVE_OPROFILE
Mathieu Desnoyers's avatar
Mathieu Desnoyers committed
15
	select HAVE_KPROBES if (!XIP_KERNEL)
16
	select HAVE_KRETPROBES if (HAVE_KPROBES)
Abhishek Sagar's avatar
Abhishek Sagar committed
17
18
	select HAVE_FTRACE if (!XIP_KERNEL)
	select HAVE_DYNAMIC_FTRACE if (HAVE_FTRACE)
Linus Torvalds's avatar
Linus Torvalds committed
19
20
	help
	  The ARM series is a line of low-power-consumption RISC chip designs
21
	  licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds's avatar
Linus Torvalds committed
22
	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
23
	  manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds's avatar
Linus Torvalds committed
24
25
26
	  Europe.  There is an ARM Linux project with a web page at
	  <http://www.arm.linux.org.uk/>.

27
28
29
config HAVE_PWM
	bool

30
31
32
config SYS_SUPPORTS_APM_EMULATION
	bool

33
34
35
36
config GENERIC_GPIO
	bool
	default n

37
38
39
40
config GENERIC_TIME
	bool
	default n

41
42
43
44
config GENERIC_CLOCKEVENTS
	bool
	default n

45
46
47
48
49
config GENERIC_CLOCKEVENTS_BROADCAST
	bool
	depends on GENERIC_CLOCKEVENTS
	default y if SMP && !LOCAL_TIMERS

Linus Torvalds's avatar
Linus Torvalds committed
50
51
52
53
config MMU
	bool
	default y

Al Viro's avatar
Al Viro committed
54
55
56
57
config NO_IOPORT
	bool
	default n

Linus Torvalds's avatar
Linus Torvalds committed
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
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.

84
85
86
87
config GENERIC_HARDIRQS
	bool
	default y

88
89
90
91
config STACKTRACE_SUPPORT
	bool
	default y

Nicolas Pitre's avatar
Nicolas Pitre committed
92
93
94
95
96
config HAVE_LATENCYTOP_SUPPORT
	bool
	depends on !SMP
	default y

97
98
99
100
config LOCKDEP_SUPPORT
	bool
	default y

Russell King's avatar
Russell King committed
101
102
103
104
config TRACE_IRQFLAGS_SUPPORT
	bool
	default y

105
106
107
108
109
110
111
112
config HARDIRQS_SW_RESEND
	bool
	default y

config GENERIC_IRQ_PROBE
	bool
	default y

Nick Piggin's avatar
Nick Piggin committed
113
114
115
116
117
config GENERIC_LOCKBREAK
	bool
	default y
	depends on SMP && PREEMPT

Linus Torvalds's avatar
Linus Torvalds committed
118
119
120
121
122
123
124
config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

125
126
127
128
129
130
131
132
config ARCH_HAS_ILOG2_U32
	bool
	default n

config ARCH_HAS_ILOG2_U64
	bool
	default n

133
134
135
136
config GENERIC_HWEIGHT
	bool
	default y

Linus Torvalds's avatar
Linus Torvalds committed
137
138
139
140
config GENERIC_CALIBRATE_DELAY
	bool
	default y

141
142
143
config ARCH_SUPPORTS_AOUT
	def_bool y

144
145
146
config ARCH_MAY_HAVE_PC_FDC
	bool

147
148
149
150
config ZONE_DMA
	bool
	default y

Linus Torvalds's avatar
Linus Torvalds committed
151
152
153
154
155
156
config GENERIC_ISA_DMA
	bool

config FIQ
	bool

157
158
159
config ARCH_MTD_XIP
	bool

160
161
162
163
config GENERIC_HARDIRQS_NO__DO_IRQ
	bool
	def_bool y

164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
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

endif

181
182
config VECTORS_BASE
	hex
183
	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
184
185
186
187
188
	default DRAM_BASE if REMAP_VECTORS_TO_RAM
	default 0x00000000
	help
	  The base address of exception vectors.

Linus Torvalds's avatar
Linus Torvalds committed
189
190
191
192
193
194
source "init/Kconfig"

menu "System Type"

choice
	prompt "ARM system type"
195
	default ARCH_VERSATILE
Linus Torvalds's avatar
Linus Torvalds committed
196

197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
config ARCH_AAEC2000
	bool "Agilent AAEC-2000 based"
	select ARM_AMBA
	help
	  This enables support for systems based on the Agilent AAEC-2000

config ARCH_INTEGRATOR
	bool "ARM Ltd. Integrator family"
	select ARM_AMBA
	select ICST525
	help
	  Support for ARM's Integrator platform.

config ARCH_REALVIEW
	bool "ARM Ltd. RealView family"
	select ARM_AMBA
	select ICST307
214
	select GENERIC_TIME
215
	select GENERIC_CLOCKEVENTS
216
217
218
219
220
221
222
223
	help
	  This enables support for ARM Ltd RealView boards.

config ARCH_VERSATILE
	bool "ARM Ltd. Versatile family"
	select ARM_AMBA
	select ARM_VIC
	select ICST307
224
	select GENERIC_TIME
225
	select GENERIC_CLOCKEVENTS
226
227
228
	help
	  This enables support for ARM Ltd Versatile board.

229
230
config ARCH_AT91
	bool "Atmel AT91"
231
	select GENERIC_GPIO
232
	help
233
234
	  This enables support for systems based on the Atmel AT91RM9200,
	  AT91SAM9 and AT91CAP9 processors.
235

Linus Torvalds's avatar
Linus Torvalds committed
236
config ARCH_CLPS7500
237
	bool "Cirrus CL-PS7500FE"
Linus Torvalds's avatar
Linus Torvalds committed
238
	select TIMER_ACORN
239
	select ISA
240
	select NO_IOPORT
241
242
	help
	  Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds's avatar
Linus Torvalds committed
243
244

config ARCH_CLPS711X
245
	bool "Cirrus Logic CLPS711x/EP721x-based"
246
247
	help
	  Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds's avatar
Linus Torvalds committed
248
249
250

config ARCH_EBSA110
	bool "EBSA-110"
251
	select ISA
252
	select NO_IOPORT
Linus Torvalds's avatar
Linus Torvalds committed
253
254
	help
	  This is an evaluation board for the StrongARM processor available
255
	  from Digital. It has limited hardware on-board, including an
Linus Torvalds's avatar
Linus Torvalds committed
256
257
258
	  Ethernet interface, two PCMCIA sockets, two serial ports and a
	  parallel port.

259
260
261
262
config ARCH_EP93XX
	bool "EP93xx-based"
	select ARM_AMBA
	select ARM_VIC
263
	select GENERIC_GPIO
264
	select HAVE_GPIO_LIB
265
266
267
	help
	  This enables support for the Cirrus EP93xx series of CPUs.

Linus Torvalds's avatar
Linus Torvalds committed
268
269
270
config ARCH_FOOTBRIDGE
	bool "FootBridge"
	select FOOTBRIDGE
271
272
273
	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
274

275
276
277
config ARCH_NETX
	bool "Hilscher NetX based"
	select ARM_VIC
278
	help
279
280
281
282
283
284
285
286
287
288
	  This enables support for systems based on the Hilscher NetX Soc

config ARCH_H720X
	bool "Hynix HMS720x-based"
	select ISA_DMA_API
	help
	  This enables support for systems based on the Hynix HMS720x

config ARCH_IMX
	bool "IMX"
289
	select GENERIC_GPIO
290
291
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
292
293
	help
	  Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds's avatar
Linus Torvalds committed
294

295
296
297
298
299
300
301
302
303
config ARCH_IOP13XX
	bool "IOP13xx-based"
	depends on MMU
	select PLAT_IOP
	select PCI
	select ARCH_SUPPORTS_MSI
	help
	  Support for Intel's IOP13XX (XScale) family of processors.

304
305
config ARCH_IOP32X
	bool "IOP32x-based"
306
	depends on MMU
307
	select PLAT_IOP
308
	select PCI
309
310
	select GENERIC_GPIO
	select HAVE_GPIO_LIB
311
	help
312
313
314
315
316
317
	  Support for Intel's 80219 and IOP32X (XScale) family of
	  processors.

config ARCH_IOP33X
	bool "IOP33x-based"
	depends on MMU
318
	select PLAT_IOP
319
	select PCI
320
321
	select GENERIC_GPIO
	select HAVE_GPIO_LIB
322
323
	help
	  Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds's avatar
Linus Torvalds committed
324

325
326
config ARCH_IXP23XX
 	bool "IXP23XX-based"
327
	depends on MMU
328
 	select PCI
329
	help
330
	  Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds's avatar
Linus Torvalds committed
331
332
333

config ARCH_IXP2000
	bool "IXP2400/2800-based"
334
	depends on MMU
335
	select PCI
336
337
	help
	  Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds's avatar
Linus Torvalds committed
338

339
340
config ARCH_IXP4XX
	bool "IXP4xx-based"
341
	depends on MMU
342
	select GENERIC_GPIO
343
344
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
345
	help
346
	  Support for Intel's IXP4XX (XScale) family of processors.
347

Linus Torvalds's avatar
Linus Torvalds committed
348
349
350
351
352
353
354
355
356
357
358
359
360
config ARCH_L7200
	bool "LinkUp-L7200"
	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>.

361
362
363
364
365
366
367
368
369
370
config ARCH_KIRKWOOD
	bool "Marvell Kirkwood"
	select PCI
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell Kirkwood series SoCs:
	  88F6180, 88F6192 and 88F6281.

371
372
config ARCH_KS8695
	bool "Micrel/Kendin KS8695"
373
	select GENERIC_GPIO
374
375
376
377
	help
	  Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
	  System-on-Chip devices.

378
379
config ARCH_NS9XXX
	bool "NetSilicon NS9xxx"
380
	select GENERIC_GPIO
381
	select GENERIC_TIME
382
	select GENERIC_CLOCKEVENTS
383
384
385
386
387
388
	help
	  Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
	  System.

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

389
390
391
392
393
394
395
396
config ARCH_LOKI
	bool "Marvell Loki (88RC8480)"
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the Marvell Loki (88RC8480) SoC.

397
398
399
400
401
402
403
404
405
406
config ARCH_MV78XX0
	bool "Marvell MV78xx0"
	select PCI
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	select PLAT_ORION
	help
	  Support for the following Marvell MV78xx0 series SoCs:
	  MV781x0, MV782x0.

407
408
config ARCH_MXC
	bool "Freescale MXC/iMX-based"
409
410
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
411
	select ARCH_MTD_XIP
412
413
	select GENERIC_GPIO
	select HAVE_GPIO_LIB
414
415
416
	help
	  Support for Freescale MXC/iMX-based family of processors

417
config ARCH_ORION5X
418
419
	bool "Marvell Orion"
	depends on MMU
Tzachi Perelstein's avatar
Tzachi Perelstein committed
420
	select PCI
Tzachi Perelstein's avatar
Tzachi Perelstein committed
421
	select GENERIC_GPIO
422
423
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
Lennert Buytenhek's avatar
Lennert Buytenhek committed
424
	select PLAT_ORION
425
	help
426
	  Support for the following Marvell Orion 5x series SoCs:
427
428
	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
	  Orion-2 (5281).
429

430
431
432
433
434
config ARCH_PNX4008
	bool "Philips Nexperia PNX4008 Mobile"
	help
	  This enables support for Philips PNX4008 mobile platform.

Linus Torvalds's avatar
Linus Torvalds committed
435
config ARCH_PXA
eric miao's avatar
eric miao committed
436
	bool "PXA2xx/PXA3xx-based"
437
	depends on MMU
438
	select ARCH_MTD_XIP
439
	select GENERIC_GPIO
440
	select HAVE_GPIO_LIB
441
	select GENERIC_TIME
442
	select GENERIC_CLOCKEVENTS
443
	select TICK_ONESHOT
444
	help
eric miao's avatar
eric miao committed
445
	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds's avatar
Linus Torvalds committed
446
447
448
449
450
451

config ARCH_RPC
	bool "RiscPC"
	select ARCH_ACORN
	select FIQ
	select TIMER_ACORN
452
	select ARCH_MAY_HAVE_PC_FDC
453
	select HAVE_PATA_PLATFORM
454
	select ISA_DMA_API
Al Viro's avatar
Al Viro committed
455
	select NO_IOPORT
Linus Torvalds's avatar
Linus Torvalds committed
456
457
458
459
460
461
	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"
462
	select ISA
Russell King's avatar
Russell King committed
463
	select ARCH_DISCONTIGMEM_ENABLE
464
465
	select ARCH_SPARSEMEM_ENABLE
	select ARCH_SELECT_MEMORY_MODEL
466
	select ARCH_MTD_XIP
467
	select GENERIC_GPIO
468
	select GENERIC_TIME
469
470
	select GENERIC_CLOCKEVENTS
	select TICK_ONESHOT
471
	select HAVE_GPIO_LIB
472
473
	help
	  Support for StrongARM 11x0 based boards.
Linus Torvalds's avatar
Linus Torvalds committed
474
475

config ARCH_S3C2410
476
	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
477
	select GENERIC_GPIO
Linus Torvalds's avatar
Linus Torvalds committed
478
479
480
	help
	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
481
	  the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds's avatar
Linus Torvalds committed
482
483
484

config ARCH_SHARK
	bool "Shark"
485
486
487
	select ISA
	select ISA_DMA
	select PCI
488
489
490
	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
491
492
493
494
495
496
497
498
499

config ARCH_LH7A40X
	bool "Sharp LH7A40X"
	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.

500
501
502
503
config ARCH_DAVINCI
	bool "TI DaVinci"
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
504
	select GENERIC_GPIO
505
506
507
	help
	  Support for TI's DaVinci platform.

508
509
510
config ARCH_OMAP
	bool "TI OMAP"
	select GENERIC_GPIO
David Brownell's avatar
David Brownell committed
511
	select HAVE_GPIO_LIB
512
	select GENERIC_TIME
513
	select GENERIC_CLOCKEVENTS
514
515
516
	help
	  Support for TI's OMAP platform (OMAP1 and OMAP2).

517
518
519
520
521
522
523
524
525
526
527
config ARCH_MSM7X00A
	bool "Qualcomm MSM7X00A"
	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
	help
	  Support for Qualcomm MSM7X00A based systems.  This runs on the ARM11
	  apps processor of the MSM7X00A 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).
	  <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>

Linus Torvalds's avatar
Linus Torvalds committed
528
529
530
531
endchoice

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

532
533
source "arch/arm/mach-ep93xx/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
534
535
536
537
source "arch/arm/mach-footbridge/Kconfig"

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

538
539
540
source "arch/arm/mach-iop32x/Kconfig"

source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds's avatar
Linus Torvalds committed
541

542
543
source "arch/arm/mach-iop13xx/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
544
545
546
547
source "arch/arm/mach-ixp4xx/Kconfig"

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

548
549
source "arch/arm/mach-ixp23xx/Kconfig"

550
551
source "arch/arm/mach-loki/Kconfig"

552
553
source "arch/arm/mach-mv78xx0/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
554
555
556
557
source "arch/arm/mach-pxa/Kconfig"

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

558
559
560
source "arch/arm/plat-omap/Kconfig"

source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds's avatar
Linus Torvalds committed
561

562
563
source "arch/arm/mach-omap2/Kconfig"

564
source "arch/arm/mach-orion5x/Kconfig"
565

566
source "arch/arm/mach-kirkwood/Kconfig"
567

568
source "arch/arm/plat-s3c24xx/Kconfig"
569
source "arch/arm/plat-s3c/Kconfig"
570
571
572

if ARCH_S3C2410
source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds's avatar
Linus Torvalds committed
573
source "arch/arm/mach-s3c2410/Kconfig"
574
575
576
source "arch/arm/mach-s3c2412/Kconfig"
source "arch/arm/mach-s3c2440/Kconfig"
source "arch/arm/mach-s3c2442/Kconfig"
577
source "arch/arm/mach-s3c2443/Kconfig"
578
endif
Linus Torvalds's avatar
Linus Torvalds committed
579
580
581
582
583
584
585
586
587

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

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

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

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

588
589
source "arch/arm/mach-aaec2000/Kconfig"

590
591
source "arch/arm/mach-realview/Kconfig"

592
source "arch/arm/mach-at91/Kconfig"
593

594
595
source "arch/arm/plat-mxc/Kconfig"

596
597
source "arch/arm/mach-netx/Kconfig"

598
599
source "arch/arm/mach-ns9xxx/Kconfig"

600
601
source "arch/arm/mach-davinci/Kconfig"

602
603
source "arch/arm/mach-ks8695/Kconfig"

604
605
source "arch/arm/mach-msm/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
606
607
608
609
# Definitions to make life easier
config ARCH_ACORN
	bool

610
611
612
config PLAT_IOP
	bool

Lennert Buytenhek's avatar
Lennert Buytenhek committed
613
614
615
config PLAT_ORION
	bool

Linus Torvalds's avatar
Linus Torvalds committed
616
617
source arch/arm/mm/Kconfig

618
619
config IWMMXT
	bool "Enable iWMMXt support"
620
	depends on CPU_XSCALE || CPU_XSC3
eric miao's avatar
eric miao committed
621
	default y if PXA27x || PXA3xx
622
623
624
625
	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
626
627
628
629
630
631
#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
config XSCALE_PMU
	bool
	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
	default y

632
633
634
635
if !MMU
source "arch/arm/Kconfig-nommu"
endif

Linus Torvalds's avatar
Linus Torvalds committed
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
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.

659
# Select ISA DMA controller support
Linus Torvalds's avatar
Linus Torvalds committed
660
661
config ISA_DMA
	bool
662
	select ISA_DMA_API
Linus Torvalds's avatar
Linus Torvalds committed
663

664
# Select ISA DMA interface
665
666
667
config ISA_DMA_API
	bool

Linus Torvalds's avatar
Linus Torvalds committed
668
config PCI
Mike Rapoport's avatar
Mike Rapoport committed
669
	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds's avatar
Linus Torvalds committed
670
671
672
673
674
675
	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.

676
677
678
config PCI_SYSCALL
	def_bool PCI

Linus Torvalds's avatar
Linus Torvalds committed
679
680
681
682
683
684
# Select the host bridge type
config PCI_HOST_VIA82C505
	bool
	depends on PCI && ARCH_SHARK
	default y

Mike Rapoport's avatar
Mike Rapoport committed
685
686
687
688
689
690
config PCI_HOST_ITE8152
	bool
	depends on PCI && MACH_ARMCORE
	default y
	select DMABOUNCE

Linus Torvalds's avatar
Linus Torvalds committed
691
692
693
694
695
696
697
698
source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

endmenu

menu "Kernel Features"

699
700
source "kernel/time/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
701
702
config SMP
	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
703
	depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
704
	select USE_GENERIC_SMP_HELPERS
Linus Torvalds's avatar
Linus Torvalds committed
705
706
707
708
709
710
711
712
713
714
715
	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
716
	  See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds's avatar
Linus Torvalds committed
717
718
719
720
721
722
723
724
725
726
727
	  <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.

config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
	default "4"

728
729
730
731
732
733
734
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.

735
736
config LOCAL_TIMERS
	bool "Use local timer interrupts"
737
	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
738
739
740
741
742
743
744
	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
745
746
747
748
749
750
751
752
753
754
755
756
757
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.

758
759
760
761
config HZ
	int
	default 128 if ARCH_L7200
	default 200 if ARCH_EBSA110 || ARCH_S3C2410
762
	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
763
	default AT91_TIMER_HZ if ARCH_AT91
764
765
	default 100

766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
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.

781
config OABI_COMPAT
782
	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
783
	depends on AEABI && EXPERIMENTAL
784
785
786
787
788
789
790
791
792
793
794
795
796
797
	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.

798
config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds's avatar
Linus Torvalds committed
799
	bool
800
	default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds's avatar
Linus Torvalds committed
801
802
803
804
805
806
	help
	  Say Y to support efficient handling of discontiguous physical memory,
	  for architectures which are either NUMA (Non-Uniform Memory Access)
	  or have huge holes in the physical address space for other reasons.
	  See <file:Documentation/vm/numa> for more.

807
808
809
810
811
812
config ARCH_SPARSEMEM_ENABLE
	bool

config ARCH_SELECT_MEMORY_MODEL
	bool

813
814
815
816
817
818
config NODES_SHIFT
	int
	default "4" if ARCH_LH7A40X
	default "2"
	depends on NEED_MULTIPLE_NODES

819
820
source "mm/Kconfig"

Linus Torvalds's avatar
Linus Torvalds committed
821
822
config LEDS
	bool "Timer and CPU usage LEDs"
823
	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Linus Torvalds's avatar
Linus Torvalds committed
824
825
826
		   ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
827
		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
828
		   ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
829
		   ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds's avatar
Linus Torvalds committed
830
831
832
833
834
835
836
837
838
839
840
841
842
	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
843
844
			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			    || MACH_OMAP_PERSEUS2
Linus Torvalds's avatar
Linus Torvalds committed
845
	depends on LEDS
846
	depends on !GENERIC_CLOCKEVENTS
Linus Torvalds's avatar
Linus Torvalds committed
847
848
849
850
851
852
853
854
855
856
857
858
859
860
	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
861
862
863
			!ARCH_OMAP) \
			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
			|| MACH_OMAP_PERSEUS2
Linus Torvalds's avatar
Linus Torvalds committed
864
865
866
867
868
869
870
871
872
873
874
875
	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
876
	depends on CPU_CP15_MMU
Linus Torvalds's avatar
Linus Torvalds committed
877
878
	default y if !ARCH_EBSA110
	help
879
	  ARM processors cannot fetch/store information which is not
Linus Torvalds's avatar
Linus Torvalds committed
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
	  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
908
909
910
911
912
913
	  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
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963

	  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.

964
965
966
967
968
969
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
970
	  but it is independent of the system firmware.   And like a reboot
971
972
973
974
975
976
977
	  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.

978
979
config ATAGS_PROC
	bool "Export atags in procfs"
980
981
	depends on KEXEC
	default y
982
983
984
985
	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
986
987
endmenu

Russell King's avatar
Russell King committed
988
if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds's avatar
Linus Torvalds committed
989
990
991
992
993
994
995

menu "CPU Frequency scaling"

source "drivers/cpufreq/Kconfig"

config CPU_FREQ_SA1100
	bool
996
	depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
Linus Torvalds's avatar
Linus Torvalds committed
997
998
999
1000
	default y

config CPU_FREQ_SA1110
	bool
For faster browsing, not all history is shown. View entire blame