remove is_tty()
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / Kconfig
CommitLineData
1da177e4
LT
1#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config ARM
9 bool
10 default y
2064c946 11 select HAVE_IDE
12b824fb 12 select RTC_LIB
75e7153a 13 select SYS_SUPPORTS_APM_EMULATION
42d4b839 14 select HAVE_OPROFILE
5cbad0eb 15 select HAVE_ARCH_KGDB
3f550096 16 select HAVE_KPROBES if (!XIP_KERNEL)
9edddaa2 17 select HAVE_KRETPROBES if (HAVE_KPROBES)
014c257c
AS
18 select HAVE_FTRACE if (!XIP_KERNEL)
19 select HAVE_DYNAMIC_FTRACE if (HAVE_FTRACE)
1da177e4
LT
20 help
21 The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a 22 licensed by ARM Ltd and targeted at embedded applications and
1da177e4 23 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a 24 manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4
LT
25 Europe. There is an ARM Linux project with a web page at
26 <http://www.arm.linux.org.uk/>.
27
1a189b97
RK
28config HAVE_PWM
29 bool
30
75e7153a
RB
31config SYS_SUPPORTS_APM_EMULATION
32 bool
33
0a938b97
DB
34config GENERIC_GPIO
35 bool
36 default n
37
746140c7
KH
38config GENERIC_TIME
39 bool
40 default n
41
0567a0c0
KH
42config GENERIC_CLOCKEVENTS
43 bool
44 default n
45
a8655e83
CM
46config GENERIC_CLOCKEVENTS_BROADCAST
47 bool
48 depends on GENERIC_CLOCKEVENTS
49 default y if SMP && !LOCAL_TIMERS
50
1da177e4
LT
51config MMU
52 bool
53 default y
54
5ea81769
AV
55config NO_IOPORT
56 bool
57 default n
58
1da177e4
LT
59config EISA
60 bool
61 ---help---
62 The Extended Industry Standard Architecture (EISA) bus was
63 developed as an open alternative to the IBM MicroChannel bus.
64
65 The EISA bus provided some of the features of the IBM MicroChannel
66 bus while maintaining backward compatibility with cards made for
67 the older ISA bus. The EISA bus saw limited use between 1988 and
68 1995 when it was made obsolete by the PCI bus.
69
70 Say Y here if you are building a kernel for an EISA-based machine.
71
72 Otherwise, say N.
73
74config SBUS
75 bool
76
77config MCA
78 bool
79 help
80 MicroChannel Architecture is found in some IBM PS/2 machines and
81 laptops. It is a bus system similar to PCI or ISA. See
82 <file:Documentation/mca.txt> (and especially the web page given
83 there) before attempting to build an MCA bus kernel.
84
4a2581a0
TG
85config GENERIC_HARDIRQS
86 bool
87 default y
88
f16fb1ec
RK
89config STACKTRACE_SUPPORT
90 bool
91 default y
92
f76e9154
NP
93config HAVE_LATENCYTOP_SUPPORT
94 bool
95 depends on !SMP
96 default y
97
f16fb1ec
RK
98config LOCKDEP_SUPPORT
99 bool
100 default y
101
7ad1bcb2
RK
102config TRACE_IRQFLAGS_SUPPORT
103 bool
104 default y
105
4a2581a0
TG
106config HARDIRQS_SW_RESEND
107 bool
108 default y
109
110config GENERIC_IRQ_PROBE
111 bool
112 default y
113
95c354fe
NP
114config GENERIC_LOCKBREAK
115 bool
116 default y
117 depends on SMP && PREEMPT
118
1da177e4
LT
119config RWSEM_GENERIC_SPINLOCK
120 bool
121 default y
122
123config RWSEM_XCHGADD_ALGORITHM
124 bool
125
f0d1b0b3
DH
126config ARCH_HAS_ILOG2_U32
127 bool
128 default n
129
130config ARCH_HAS_ILOG2_U64
131 bool
132 default n
133
b89c3b16
AM
134config GENERIC_HWEIGHT
135 bool
136 default y
137
1da177e4
LT
138config GENERIC_CALIBRATE_DELAY
139 bool
140 default y
141
b0b933c0
DH
142config ARCH_SUPPORTS_AOUT
143 def_bool y
144
a08b6b79
AV
145config ARCH_MAY_HAVE_PC_FDC
146 bool
147
5ac6da66
CL
148config ZONE_DMA
149 bool
150 default y
151
1da177e4
LT
152config GENERIC_ISA_DMA
153 bool
154
1da177e4
LT
155config FIQ
156 bool
157
034d2f5a
AV
158config ARCH_MTD_XIP
159 bool
160
60a752ef
PZ
161config GENERIC_HARDIRQS_NO__DO_IRQ
162 bool
163 def_bool y
164
c0ffa3a9
MD
165if OPROFILE
166
167config OPROFILE_ARMV6
168 def_bool y
169 depends on CPU_V6 && !SMP
170 select OPROFILE_ARM11_CORE
171
172config OPROFILE_MPCORE
173 def_bool y
174 depends on CPU_V6 && SMP
175 select OPROFILE_ARM11_CORE
176
177config OPROFILE_ARM11_CORE
178 bool
179
180endif
181
c760fc19
HC
182config VECTORS_BASE
183 hex
6afd6fae 184 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
c760fc19
HC
185 default DRAM_BASE if REMAP_VECTORS_TO_RAM
186 default 0x00000000
187 help
188 The base address of exception vectors.
189
1da177e4
LT
190source "init/Kconfig"
191
192menu "System Type"
193
194choice
195 prompt "ARM system type"
6a0e2430 196 default ARCH_VERSATILE
1da177e4 197
4af6fee1
DS
198config ARCH_AAEC2000
199 bool "Agilent AAEC-2000 based"
200 select ARM_AMBA
201 help
202 This enables support for systems based on the Agilent AAEC-2000
203
204config ARCH_INTEGRATOR
205 bool "ARM Ltd. Integrator family"
206 select ARM_AMBA
207 select ICST525
208 help
209 Support for ARM's Integrator platform.
210
211config ARCH_REALVIEW
212 bool "ARM Ltd. RealView family"
213 select ARM_AMBA
214 select ICST307
85802afe 215 select GENERIC_TIME
ae30ceac 216 select GENERIC_CLOCKEVENTS
4af6fee1
DS
217 help
218 This enables support for ARM Ltd RealView boards.
219
220config ARCH_VERSATILE
221 bool "ARM Ltd. Versatile family"
222 select ARM_AMBA
223 select ARM_VIC
224 select ICST307
b49c87c2 225 select GENERIC_TIME
89df1272 226 select GENERIC_CLOCKEVENTS
4af6fee1
DS
227 help
228 This enables support for ARM Ltd Versatile board.
229
8fc5ffa0
AV
230config ARCH_AT91
231 bool "Atmel AT91"
0a938b97 232 select GENERIC_GPIO
4af6fee1 233 help
2b3b3516
AV
234 This enables support for systems based on the Atmel AT91RM9200,
235 AT91SAM9 and AT91CAP9 processors.
4af6fee1 236
1da177e4 237config ARCH_CLPS7500
4af6fee1 238 bool "Cirrus CL-PS7500FE"
1da177e4 239 select TIMER_ACORN
f7e68bbf 240 select ISA
e4169889 241 select NO_IOPORT
f999b8bd
MM
242 help
243 Support for the Cirrus Logic PS7500FE system-on-a-chip.
1da177e4
LT
244
245config ARCH_CLPS711X
4af6fee1 246 bool "Cirrus Logic CLPS711x/EP721x-based"
f999b8bd
MM
247 help
248 Support for Cirrus Logic 711x/721x based boards.
1da177e4 249
1da177e4
LT
250config ARCH_EBSA110
251 bool "EBSA-110"
f7e68bbf 252 select ISA
c5eb2a2b 253 select NO_IOPORT
1da177e4
LT
254 help
255 This is an evaluation board for the StrongARM processor available
f6c8965a 256 from Digital. It has limited hardware on-board, including an
1da177e4
LT
257 Ethernet interface, two PCMCIA sockets, two serial ports and a
258 parallel port.
259
e7736d47
LB
260config ARCH_EP93XX
261 bool "EP93xx-based"
262 select ARM_AMBA
263 select ARM_VIC
4e9f9fd5 264 select GENERIC_GPIO
b685004f 265 select HAVE_GPIO_LIB
e7736d47
LB
266 help
267 This enables support for the Cirrus EP93xx series of CPUs.
268
1da177e4
LT
269config ARCH_FOOTBRIDGE
270 bool "FootBridge"
271 select FOOTBRIDGE
f999b8bd
MM
272 help
273 Support for systems based on the DC21285 companion chip
274 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 275
4af6fee1
DS
276config ARCH_NETX
277 bool "Hilscher NetX based"
278 select ARM_VIC
f999b8bd 279 help
4af6fee1
DS
280 This enables support for systems based on the Hilscher NetX Soc
281
282config ARCH_H720X
283 bool "Hynix HMS720x-based"
284 select ISA_DMA_API
285 help
286 This enables support for systems based on the Hynix HMS720x
287
288config ARCH_IMX
289 bool "IMX"
b3e6a508 290 select GENERIC_GPIO
89bba435
PP
291 select GENERIC_TIME
292 select GENERIC_CLOCKEVENTS
4af6fee1
DS
293 help
294 Support for Motorola's i.MX family of processors (MX1, MXL).
1da177e4 295
3b938be6
RK
296config ARCH_IOP13XX
297 bool "IOP13xx-based"
298 depends on MMU
299 select PLAT_IOP
300 select PCI
301 select ARCH_SUPPORTS_MSI
302 help
303 Support for Intel's IOP13XX (XScale) family of processors.
304
3f7e5815
LB
305config ARCH_IOP32X
306 bool "IOP32x-based"
a4f7e763 307 depends on MMU
7ae1f7ec 308 select PLAT_IOP
f7e68bbf 309 select PCI
63f385cd
AP
310 select GENERIC_GPIO
311 select HAVE_GPIO_LIB
f999b8bd 312 help
3f7e5815
LB
313 Support for Intel's 80219 and IOP32X (XScale) family of
314 processors.
315
316config ARCH_IOP33X
317 bool "IOP33x-based"
318 depends on MMU
7ae1f7ec 319 select PLAT_IOP
3f7e5815 320 select PCI
63f385cd
AP
321 select GENERIC_GPIO
322 select HAVE_GPIO_LIB
3f7e5815
LB
323 help
324 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 325
3b938be6
RK
326config ARCH_IXP23XX
327 bool "IXP23XX-based"
a4f7e763 328 depends on MMU
3b938be6 329 select PCI
f999b8bd 330 help
3b938be6 331 Support for Intel's IXP23xx (XScale) family of processors.
1da177e4
LT
332
333config ARCH_IXP2000
334 bool "IXP2400/2800-based"
a4f7e763 335 depends on MMU
f7e68bbf 336 select PCI
f999b8bd
MM
337 help
338 Support for Intel's IXP2400/2800 (XScale) family of processors.
1da177e4 339
3b938be6
RK
340config ARCH_IXP4XX
341 bool "IXP4xx-based"
a4f7e763 342 depends on MMU
8858e9af 343 select GENERIC_GPIO
3b938be6
RK
344 select GENERIC_TIME
345 select GENERIC_CLOCKEVENTS
c4713074 346 help
3b938be6 347 Support for Intel's IXP4XX (XScale) family of processors.
c4713074 348
1da177e4
LT
349config ARCH_L7200
350 bool "LinkUp-L7200"
351 select FIQ
352 help
353 Say Y here if you intend to run this kernel on a LinkUp Systems
354 L7200 Software Development Board which uses an ARM720T processor.
355 Information on this board can be obtained at:
356
357 <http://www.linkupsys.com/>
358
359 If you have any questions or comments about the Linux kernel port
360 to this board, send e-mail to <sjhill@cotw.com>.
361
651c74c7
SB
362config ARCH_KIRKWOOD
363 bool "Marvell Kirkwood"
364 select PCI
365 select GENERIC_TIME
366 select GENERIC_CLOCKEVENTS
367 select PLAT_ORION
368 help
369 Support for the following Marvell Kirkwood series SoCs:
370 88F6180, 88F6192 and 88F6281.
371
c53c9cf6
AV
372config ARCH_KS8695
373 bool "Micrel/Kendin KS8695"
8a87a996 374 select GENERIC_GPIO
c53c9cf6
AV
375 help
376 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
377 System-on-Chip devices.
378
9918cda5
UKK
379config ARCH_NS9XXX
380 bool "NetSilicon NS9xxx"
689f2a01 381 select GENERIC_GPIO
cef5975d 382 select GENERIC_TIME
c0bb87f7 383 select GENERIC_CLOCKEVENTS
9918cda5
UKK
384 help
385 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
386 System.
387
388 <http://www.digi.com/products/microprocessors/index.jsp>
389
777f9beb
LB
390config ARCH_LOKI
391 bool "Marvell Loki (88RC8480)"
392 select GENERIC_TIME
393 select GENERIC_CLOCKEVENTS
394 select PLAT_ORION
395 help
396 Support for the Marvell Loki (88RC8480) SoC.
397
794d15b2
SS
398config ARCH_MV78XX0
399 bool "Marvell MV78xx0"
400 select PCI
401 select GENERIC_TIME
402 select GENERIC_CLOCKEVENTS
403 select PLAT_ORION
404 help
405 Support for the following Marvell MV78xx0 series SoCs:
406 MV781x0, MV782x0.
407
52c543f9
QJ
408config ARCH_MXC
409 bool "Freescale MXC/iMX-based"
d0f349fb
JB
410 select GENERIC_TIME
411 select GENERIC_CLOCKEVENTS
52c543f9 412 select ARCH_MTD_XIP
07bd1a6c
JB
413 select GENERIC_GPIO
414 select HAVE_GPIO_LIB
52c543f9
QJ
415 help
416 Support for Freescale MXC/iMX-based family of processors
417
9dd0b194 418config ARCH_ORION5X
585cf175
TP
419 bool "Marvell Orion"
420 depends on MMU
038ee083 421 select PCI
01af72e4 422 select GENERIC_GPIO
51cbff1d
TP
423 select GENERIC_TIME
424 select GENERIC_CLOCKEVENTS
69b02f6a 425 select PLAT_ORION
585cf175 426 help
9dd0b194 427 Support for the following Marvell Orion 5x series SoCs:
d2b2a6bb
LB
428 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
429 Orion-2 (5281).
585cf175 430
4af6fee1
DS
431config ARCH_PNX4008
432 bool "Philips Nexperia PNX4008 Mobile"
433 help
434 This enables support for Philips PNX4008 mobile platform.
435
1da177e4 436config ARCH_PXA
2c8086a5 437 bool "PXA2xx/PXA3xx-based"
a4f7e763 438 depends on MMU
034d2f5a 439 select ARCH_MTD_XIP
0a938b97 440 select GENERIC_GPIO
1c44f5f1 441 select HAVE_GPIO_LIB
45cf5eef 442 select GENERIC_TIME
981d0f39 443 select GENERIC_CLOCKEVENTS
a88264c2 444 select TICK_ONESHOT
f999b8bd 445 help
2c8086a5 446 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
1da177e4
LT
447
448config ARCH_RPC
449 bool "RiscPC"
450 select ARCH_ACORN
451 select FIQ
452 select TIMER_ACORN
a08b6b79 453 select ARCH_MAY_HAVE_PC_FDC
341eb781 454 select HAVE_PATA_PLATFORM
065909b9 455 select ISA_DMA_API
5ea81769 456 select NO_IOPORT
1da177e4
LT
457 help
458 On the Acorn Risc-PC, Linux can support the internal IDE disk and
459 CD-ROM interface, serial and parallel port, and the floppy drive.
460
461config ARCH_SA1100
462 bool "SA1100-based"
f7e68bbf 463 select ISA
3cd9e19e 464 select ARCH_DISCONTIGMEM_ENABLE
05944d74
RK
465 select ARCH_SPARSEMEM_ENABLE
466 select ARCH_SELECT_MEMORY_MODEL
034d2f5a 467 select ARCH_MTD_XIP
0a938b97 468 select GENERIC_GPIO
d142b6e7 469 select GENERIC_TIME
3e238be2
RK
470 select GENERIC_CLOCKEVENTS
471 select TICK_ONESHOT
45528e38 472 select HAVE_GPIO_LIB
f999b8bd
MM
473 help
474 Support for StrongARM 11x0 based boards.
1da177e4
LT
475
476config ARCH_S3C2410
e4d06e39 477 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
0a938b97 478 select GENERIC_GPIO
1da177e4
LT
479 help
480 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
481 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
f6c8965a 482 the Samsung SMDK2410 development board (and derivatives).
1da177e4
LT
483
484config ARCH_SHARK
485 bool "Shark"
f7e68bbf
RK
486 select ISA
487 select ISA_DMA
488 select PCI
f999b8bd
MM
489 help
490 Support for the StrongARM based Digital DNARD machine, also known
491 as "Shark" (<http://www.shark-linux.de/shark.html>).
1da177e4
LT
492
493config ARCH_LH7A40X
494 bool "Sharp LH7A40X"
495 help
496 Say Y here for systems based on one of the Sharp LH7A40X
497 System on a Chip processors. These CPUs include an ARM922T
498 core with a wide array of integrated devices for
499 hand-held and low-power applications.
500
7c6337e2
KH
501config ARCH_DAVINCI
502 bool "TI DaVinci"
503 select GENERIC_TIME
504 select GENERIC_CLOCKEVENTS
3d9edf09 505 select GENERIC_GPIO
7c6337e2
KH
506 help
507 Support for TI's DaVinci platform.
508
3b938be6
RK
509config ARCH_OMAP
510 bool "TI OMAP"
511 select GENERIC_GPIO
52e31344 512 select HAVE_GPIO_LIB
3b938be6 513 select GENERIC_TIME
06cad098 514 select GENERIC_CLOCKEVENTS
3b938be6
RK
515 help
516 Support for TI's OMAP platform (OMAP1 and OMAP2).
517
3042102a
BS
518config ARCH_MSM7X00A
519 bool "Qualcomm MSM7X00A"
520 select GENERIC_TIME
521 select GENERIC_CLOCKEVENTS
522 help
523 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
524 apps processor of the MSM7X00A and depends on a shared memory
525 interface to the ARM9 modem processor which runs the baseband stack
526 and controls some vital subsystems (clock and power control, etc).
527 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
528
1da177e4
LT
529endchoice
530
531source "arch/arm/mach-clps711x/Kconfig"
532
e7736d47
LB
533source "arch/arm/mach-ep93xx/Kconfig"
534
1da177e4
LT
535source "arch/arm/mach-footbridge/Kconfig"
536
537source "arch/arm/mach-integrator/Kconfig"
538
3f7e5815
LB
539source "arch/arm/mach-iop32x/Kconfig"
540
541source "arch/arm/mach-iop33x/Kconfig"
1da177e4 542
285f5fa7
DW
543source "arch/arm/mach-iop13xx/Kconfig"
544
1da177e4
LT
545source "arch/arm/mach-ixp4xx/Kconfig"
546
547source "arch/arm/mach-ixp2000/Kconfig"
548
c4713074
LB
549source "arch/arm/mach-ixp23xx/Kconfig"
550
777f9beb
LB
551source "arch/arm/mach-loki/Kconfig"
552
794d15b2
SS
553source "arch/arm/mach-mv78xx0/Kconfig"
554
1da177e4
LT
555source "arch/arm/mach-pxa/Kconfig"
556
557source "arch/arm/mach-sa1100/Kconfig"
558
d48af15e
TL
559source "arch/arm/plat-omap/Kconfig"
560
561source "arch/arm/mach-omap1/Kconfig"
1da177e4 562
1dbae815
TL
563source "arch/arm/mach-omap2/Kconfig"
564
9dd0b194 565source "arch/arm/mach-orion5x/Kconfig"
585cf175 566
651c74c7 567source "arch/arm/mach-kirkwood/Kconfig"
585cf175 568
a21765a7 569source "arch/arm/plat-s3c24xx/Kconfig"
d58153d8 570source "arch/arm/plat-s3c/Kconfig"
a21765a7
BD
571
572if ARCH_S3C2410
573source "arch/arm/mach-s3c2400/Kconfig"
1da177e4 574source "arch/arm/mach-s3c2410/Kconfig"
a21765a7
BD
575source "arch/arm/mach-s3c2412/Kconfig"
576source "arch/arm/mach-s3c2440/Kconfig"
577source "arch/arm/mach-s3c2442/Kconfig"
e4d06e39 578source "arch/arm/mach-s3c2443/Kconfig"
a21765a7 579endif
1da177e4
LT
580
581source "arch/arm/mach-lh7a40x/Kconfig"
582
583source "arch/arm/mach-imx/Kconfig"
584
585source "arch/arm/mach-h720x/Kconfig"
586
587source "arch/arm/mach-versatile/Kconfig"
588
038c5b60
BN
589source "arch/arm/mach-aaec2000/Kconfig"
590
8ad68bbf
CM
591source "arch/arm/mach-realview/Kconfig"
592
9d041268 593source "arch/arm/mach-at91/Kconfig"
73a59c1c 594
52c543f9
QJ
595source "arch/arm/plat-mxc/Kconfig"
596
bb6d8c88
SH
597source "arch/arm/mach-netx/Kconfig"
598
9918cda5
UKK
599source "arch/arm/mach-ns9xxx/Kconfig"
600
7c6337e2
KH
601source "arch/arm/mach-davinci/Kconfig"
602
c53c9cf6
AV
603source "arch/arm/mach-ks8695/Kconfig"
604
9e73c84c
BS
605source "arch/arm/mach-msm/Kconfig"
606
1da177e4
LT
607# Definitions to make life easier
608config ARCH_ACORN
609 bool
610
7ae1f7ec
LB
611config PLAT_IOP
612 bool
613
69b02f6a
LB
614config PLAT_ORION
615 bool
616
1da177e4
LT
617source arch/arm/mm/Kconfig
618
afe4b25e
LB
619config IWMMXT
620 bool "Enable iWMMXt support"
6340aa61 621 depends on CPU_XSCALE || CPU_XSC3
2c8086a5 622 default y if PXA27x || PXA3xx
afe4b25e
LB
623 help
624 Enable support for iWMMXt context switching at run time if
625 running on a CPU that supports it.
626
1da177e4
LT
627# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
628config XSCALE_PMU
629 bool
630 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
631 default y
632
3b93e7b0
HC
633if !MMU
634source "arch/arm/Kconfig-nommu"
635endif
636
1da177e4
LT
637endmenu
638
639source "arch/arm/common/Kconfig"
640
641config FORCE_MAX_ZONEORDER
642 int
643 depends on SA1111
644 default "9"
645
646menu "Bus support"
647
648config ARM_AMBA
649 bool
650
651config ISA
652 bool
1da177e4
LT
653 help
654 Find out whether you have ISA slots on your motherboard. ISA is the
655 name of a bus system, i.e. the way the CPU talks to the other stuff
656 inside your box. Other bus systems are PCI, EISA, MicroChannel
657 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
658 newer boards don't support it. If you have ISA, say Y, otherwise N.
659
065909b9 660# Select ISA DMA controller support
1da177e4
LT
661config ISA_DMA
662 bool
065909b9 663 select ISA_DMA_API
1da177e4 664
065909b9 665# Select ISA DMA interface
5cae841b
AV
666config ISA_DMA_API
667 bool
5cae841b 668
1da177e4 669config PCI
a0113a99 670 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
1da177e4
LT
671 help
672 Find out whether you have a PCI motherboard. PCI is the name of a
673 bus system, i.e. the way the CPU talks to the other stuff inside
674 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
675 VESA. If you have PCI, say Y, otherwise N.
676
36e23590
MW
677config PCI_SYSCALL
678 def_bool PCI
679
1da177e4
LT
680# Select the host bridge type
681config PCI_HOST_VIA82C505
682 bool
683 depends on PCI && ARCH_SHARK
684 default y
685
a0113a99
MR
686config PCI_HOST_ITE8152
687 bool
688 depends on PCI && MACH_ARMCORE
689 default y
690 select DMABOUNCE
691
1da177e4
LT
692source "drivers/pci/Kconfig"
693
694source "drivers/pcmcia/Kconfig"
695
696endmenu
697
698menu "Kernel Features"
699
0567a0c0
KH
700source "kernel/time/Kconfig"
701
1da177e4
LT
702config SMP
703 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
78fdcb42 704 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
f6dd9fa5 705 select USE_GENERIC_SMP_HELPERS
1da177e4
LT
706 help
707 This enables support for systems with more than one CPU. If you have
708 a system with only one CPU, like most personal computers, say N. If
709 you have a system with more than one CPU, say Y.
710
711 If you say N here, the kernel will run on single and multiprocessor
712 machines, but will use only one CPU of a multiprocessor machine. If
713 you say Y here, the kernel will run on many, but not all, single
714 processor machines. On a single processor machine, the kernel will
715 run faster if you say N here.
716
03502faa 717 See also <file:Documentation/i386/IO-APIC.txt>,
1da177e4
LT
718 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
719 <http://www.linuxdoc.org/docs.html#howto>.
720
721 If you don't know what to do here, say N.
722
723config NR_CPUS
724 int "Maximum number of CPUs (2-32)"
725 range 2 32
726 depends on SMP
727 default "4"
728
a054a811
RK
729config HOTPLUG_CPU
730 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
731 depends on SMP && HOTPLUG && EXPERIMENTAL
732 help
733 Say Y here to experiment with turning CPUs off and on. CPUs
734 can be controlled through /sys/devices/system/cpu.
735
37ee16ae
RK
736config LOCAL_TIMERS
737 bool "Use local timer interrupts"
78fdcb42 738 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
37ee16ae
RK
739 default y
740 help
741 Enable support for local timers on SMP platforms, rather then the
742 legacy IPI broadcast method. Local timers allows the system
743 accounting to be spread across the timer interval, preventing a
744 "thundering herd" at every timer tick.
745
1da177e4
LT
746config PREEMPT
747 bool "Preemptible Kernel (EXPERIMENTAL)"
748 depends on EXPERIMENTAL
749 help
750 This option reduces the latency of the kernel when reacting to
751 real-time or interactive events by allowing a low priority process to
752 be preempted even if it is in kernel mode executing a system call.
753 This allows applications to run more reliably even when the system is
754 under load.
755
756 Say Y here if you are building a kernel for a desktop, embedded
757 or real-time system. Say N if you are unsure.
758
f8065813
RK
759config HZ
760 int
761 default 128 if ARCH_L7200
762 default 200 if ARCH_EBSA110 || ARCH_S3C2410
bfe65704 763 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
5248c657 764 default AT91_TIMER_HZ if ARCH_AT91
f8065813
RK
765 default 100
766
704bdda0
NP
767config AEABI
768 bool "Use the ARM EABI to compile the kernel"
769 help
770 This option allows for the kernel to be compiled using the latest
771 ARM ABI (aka EABI). This is only useful if you are using a user
772 space environment that is also compiled with EABI.
773
774 Since there are major incompatibilities between the legacy ABI and
775 EABI, especially with regard to structure member alignment, this
776 option also changes the kernel syscall calling convention to
777 disambiguate both ABIs and allow for backward compatibility support
778 (selected with CONFIG_OABI_COMPAT).
779
780 To use this you need GCC version 4.0.0 or later.
781
6c90c872 782config OABI_COMPAT
a73a3ff1 783 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
61c484d4 784 depends on AEABI && EXPERIMENTAL
6c90c872
NP
785 default y
786 help
787 This option preserves the old syscall interface along with the
788 new (ARM EABI) one. It also provides a compatibility layer to
789 intercept syscalls that have structure arguments which layout
790 in memory differs between the legacy ABI and the new ARM EABI
791 (only for non "thumb" binaries). This option adds a tiny
792 overhead to all syscalls and produces a slightly larger kernel.
793 If you know you'll be using only pure EABI user space then you
794 can say N here. If this option is not selected and you attempt
795 to execute a legacy ABI binary then the result will be
796 UNPREDICTABLE (in fact it can be predicted that it won't work
797 at all). If in doubt say Y.
798
3f22ab27 799config ARCH_DISCONTIGMEM_ENABLE
1da177e4 800 bool
f7e68bbf 801 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
1da177e4
LT
802 help
803 Say Y to support efficient handling of discontiguous physical memory,
804 for architectures which are either NUMA (Non-Uniform Memory Access)
805 or have huge holes in the physical address space for other reasons.
806 See <file:Documentation/vm/numa> for more.
807
05944d74
RK
808config ARCH_SPARSEMEM_ENABLE
809 bool
810
811config ARCH_SELECT_MEMORY_MODEL
812 bool
813
c80d79d7
YG
814config NODES_SHIFT
815 int
816 default "4" if ARCH_LH7A40X
817 default "2"
818 depends on NEED_MULTIPLE_NODES
819
3f22ab27
DH
820source "mm/Kconfig"
821
1da177e4
LT
822config LEDS
823 bool "Timer and CPU usage LEDs"
e055d5bf 824 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
1da177e4
LT
825 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
826 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
827 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
73a59c1c 828 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
c53c9cf6 829 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
817eb210 830 ARCH_KS8695 || MACH_RD88F5182
1da177e4
LT
831 help
832 If you say Y here, the LEDs on your machine will be used
833 to provide useful information about your current system status.
834
835 If you are compiling a kernel for a NetWinder or EBSA-285, you will
836 be able to select which LEDs are active using the options below. If
837 you are compiling a kernel for the EBSA-110 or the LART however, the
838 red LED will simply flash regularly to indicate that the system is
839 still functional. It is safe to say Y here if you have a CATS
840 system, but the driver will do nothing.
841
842config LEDS_TIMER
843 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
eebdf7d7
DB
844 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
845 || MACH_OMAP_PERSEUS2
1da177e4 846 depends on LEDS
0567a0c0 847 depends on !GENERIC_CLOCKEVENTS
1da177e4
LT
848 default y if ARCH_EBSA110
849 help
850 If you say Y here, one of the system LEDs (the green one on the
851 NetWinder, the amber one on the EBSA285, or the red one on the LART)
852 will flash regularly to indicate that the system is still
853 operational. This is mainly useful to kernel hackers who are
854 debugging unstable kernels.
855
856 The LART uses the same LED for both Timer LED and CPU usage LED
857 functions. You may choose to use both, but the Timer LED function
858 will overrule the CPU usage LED.
859
860config LEDS_CPU
861 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
eebdf7d7
DB
862 !ARCH_OMAP) \
863 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
864 || MACH_OMAP_PERSEUS2
1da177e4
LT
865 depends on LEDS
866 help
867 If you say Y here, the red LED will be used to give a good real
868 time indication of CPU usage, by lighting whenever the idle task
869 is not currently executing.
870
871 The LART uses the same LED for both Timer LED and CPU usage LED
872 functions. You may choose to use both, but the Timer LED function
873 will overrule the CPU usage LED.
874
875config ALIGNMENT_TRAP
876 bool
f12d0d7c 877 depends on CPU_CP15_MMU
1da177e4
LT
878 default y if !ARCH_EBSA110
879 help
84eb8d06 880 ARM processors cannot fetch/store information which is not
1da177e4
LT
881 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
882 address divisible by 4. On 32-bit ARM processors, these non-aligned
883 fetch/store instructions will be emulated in software if you say
884 here, which has a severe performance impact. This is necessary for
885 correct operation of some network protocols. With an IP-only
886 configuration it is safe to say N, otherwise say Y.
887
888endmenu
889
890menu "Boot options"
891
892# Compressed boot loader in ROM. Yes, we really want to ask about
893# TEXT and BSS so we preserve their values in the config files.
894config ZBOOT_ROM_TEXT
895 hex "Compressed ROM boot loader base address"
896 default "0"
897 help
898 The physical address at which the ROM-able zImage is to be
899 placed in the target. Platforms which normally make use of
900 ROM-able zImage formats normally set this to a suitable
901 value in their defconfig file.
902
903 If ZBOOT_ROM is not enabled, this has no effect.
904
905config ZBOOT_ROM_BSS
906 hex "Compressed ROM boot loader BSS address"
907 default "0"
908 help
f8c440b2
DF
909 The base address of an area of read/write memory in the target
910 for the ROM-able zImage which must be available while the
911 decompressor is running. It must be large enough to hold the
912 entire decompressed kernel plus an additional 128 KiB.
913 Platforms which normally make use of ROM-able zImage formats
914 normally set this to a suitable value in their defconfig file.
1da177e4
LT
915
916 If ZBOOT_ROM is not enabled, this has no effect.
917
918config ZBOOT_ROM
919 bool "Compressed boot loader in ROM/flash"
920 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
921 help
922 Say Y here if you intend to execute your compressed kernel image
923 (zImage) directly from ROM or flash. If unsure, say N.
924
925config CMDLINE
926 string "Default kernel command string"
927 default ""
928 help
929 On some architectures (EBSA110 and CATS), there is currently no way
930 for the boot loader to pass arguments to the kernel. For these
931 architectures, you should supply some command-line options at build
932 time by entering them here. As a minimum, you should specify the
933 memory size and the root device (e.g., mem=64M root=/dev/nfs).
934
935config XIP_KERNEL
936 bool "Kernel Execute-In-Place from ROM"
937 depends on !ZBOOT_ROM
938 help
939 Execute-In-Place allows the kernel to run from non-volatile storage
940 directly addressable by the CPU, such as NOR flash. This saves RAM
941 space since the text section of the kernel is not loaded from flash
942 to RAM. Read-write sections, such as the data section and stack,
943 are still copied to RAM. The XIP kernel is not compressed since
944 it has to run directly from flash, so it will take more space to
945 store it. The flash address used to link the kernel object files,
946 and for storing it, is configuration dependent. Therefore, if you
947 say Y here, you must know the proper physical address where to
948 store the kernel image depending on your own flash memory usage.
949
950 Also note that the make target becomes "make xipImage" rather than
951 "make zImage" or "make Image". The final kernel binary to put in
952 ROM memory will be arch/arm/boot/xipImage.
953
954 If unsure, say N.
955
956config XIP_PHYS_ADDR
957 hex "XIP Kernel Physical Location"
958 depends on XIP_KERNEL
959 default "0x00080000"
960 help
961 This is the physical address in your flash memory the kernel will
962 be linked for and stored to. This address is dependent on your
963 own flash usage.
964
c587e4a6
RP
965config KEXEC
966 bool "Kexec system call (EXPERIMENTAL)"
967 depends on EXPERIMENTAL
968 help
969 kexec is a system call that implements the ability to shutdown your
970 current kernel, and to start another kernel. It is like a reboot
01dd2fbf 971 but it is independent of the system firmware. And like a reboot
c587e4a6
RP
972 you can start any kernel with it, not just Linux.
973
974 It is an ongoing process to be certain the hardware in a machine
975 is properly shutdown, so do not be surprised if this code does not
976 initially work for you. It may help to enable device hotplugging
977 support.
978
4cd9d6f7
RP
979config ATAGS_PROC
980 bool "Export atags in procfs"
b98d7291
UL
981 depends on KEXEC
982 default y
4cd9d6f7
RP
983 help
984 Should the atags used to boot the kernel be exported in an "atags"
985 file in procfs. Useful with kexec.
986
1da177e4
LT
987endmenu
988
9e2697ff 989if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
1da177e4
LT
990
991menu "CPU Frequency scaling"
992
993source "drivers/cpufreq/Kconfig"
994
995config CPU_FREQ_SA1100
996 bool
07c6d48f 997 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
1da177e4
LT
998 default y
999
1000config CPU_FREQ_SA1110
1001 bool
1002 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1003 default y
1004
1005config CPU_FREQ_INTEGRATOR
1006 tristate "CPUfreq driver for ARM Integrator CPUs"
1007 depends on ARCH_INTEGRATOR && CPU_FREQ
1008 default y
1009 help
1010 This enables the CPUfreq driver for ARM Integrator CPUs.
1011
1012 For details, take a look at <file:Documentation/cpu-freq>.
1013
1014 If in doubt, say Y.
1015
3c8cd0cc
PP
1016config CPU_FREQ_IMX
1017 tristate "CPUfreq driver for i.MX CPUs"
1018 depends on ARCH_IMX && CPU_FREQ
1019 default n
1020 help
1021 This enables the CPUfreq driver for i.MX CPUs.
1022
1023 If in doubt, say N.
1024
9e2697ff
RK
1025config CPU_FREQ_PXA
1026 bool
1027 depends on CPU_FREQ && ARCH_PXA && PXA25x
1028 default y
1029 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1030
1da177e4
LT
1031endmenu
1032
1033endif
1034
1035menu "Floating point emulation"
1036
1037comment "At least one emulation must be selected"
1038
1039config FPE_NWFPE
1040 bool "NWFPE math emulation"
8993a44c 1041 depends on !AEABI || OABI_COMPAT
1da177e4
LT
1042 ---help---
1043 Say Y to include the NWFPE floating point emulator in the kernel.
1044 This is necessary to run most binaries. Linux does not currently
1045 support floating point hardware so you need to say Y here even if
1046 your machine has an FPA or floating point co-processor podule.
1047
1048 You may say N here if you are going to load the Acorn FPEmulator
1049 early in the bootup.
1050
1051config FPE_NWFPE_XP
1052 bool "Support extended precision"
bedf142b 1053 depends on FPE_NWFPE
1da177e4
LT
1054 help
1055 Say Y to include 80-bit support in the kernel floating-point
1056 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1057 Note that gcc does not generate 80-bit operations by default,
1058 so in most cases this option only enlarges the size of the
1059 floating point emulator without any good reason.
1060
1061 You almost surely want to say N here.
1062
1063config FPE_FASTFPE
1064 bool "FastFPE math emulation (EXPERIMENTAL)"
8993a44c 1065 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1da177e4
LT
1066 ---help---
1067 Say Y here to include the FAST floating point emulator in the kernel.
1068 This is an experimental much faster emulator which now also has full
1069 precision for the mantissa. It does not support any exceptions.
1070 It is very simple, and approximately 3-6 times faster than NWFPE.
1071
1072 It should be sufficient for most programs. It may be not suitable
1073 for scientific calculations, but you have to check this for yourself.
1074 If you do not feel you need a faster FP emulation you should better
1075 choose NWFPE.
1076
1077config VFP
1078 bool "VFP-format floating point maths"
c00d4ffd 1079 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1da177e4
LT
1080 help
1081 Say Y to include VFP support code in the kernel. This is needed
1082 if your hardware includes a VFP unit.
1083
1084 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1085 release notes and additional status information.
1086
1087 Say N if your target does not have VFP hardware.
1088
25ebee02
CM
1089config VFPv3
1090 bool
1091 depends on VFP
1092 default y if CPU_V7
1093
b5872db4
CM
1094config NEON
1095 bool "Advanced SIMD (NEON) Extension support"
1096 depends on VFPv3 && CPU_V7
1097 help
1098 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1099 Extension.
1100
1da177e4
LT
1101endmenu
1102
1103menu "Userspace binary formats"
1104
1105source "fs/Kconfig.binfmt"
1106
1107config ARTHUR
1108 tristate "RISC OS personality"
704bdda0 1109 depends on !AEABI
1da177e4
LT
1110 help
1111 Say Y here to include the kernel code necessary if you want to run
1112 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1113 experimental; if this sounds frightening, say N and sleep in peace.
1114 You can also say M here to compile this support as a module (which
1115 will be called arthur).
1116
1117endmenu
1118
1119menu "Power management options"
1120
eceab4ac 1121source "kernel/power/Kconfig"
1da177e4 1122
f4cb5700
JB
1123config ARCH_SUSPEND_POSSIBLE
1124 def_bool y
1125
1da177e4
LT
1126endmenu
1127
d5950b43
SR
1128source "net/Kconfig"
1129
1da177e4
LT
1130menu "Device Drivers"
1131
1132source "drivers/base/Kconfig"
1133
c35bf4a5
PM
1134source "drivers/connector/Kconfig"
1135
f12d0d7c 1136if ALIGNMENT_TRAP || !CPU_CP15_MMU
1da177e4
LT
1137source "drivers/mtd/Kconfig"
1138endif
1139
1140source "drivers/parport/Kconfig"
1141
1142source "drivers/pnp/Kconfig"
1143
1144source "drivers/block/Kconfig"
1145
58273e55
RK
1146# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1147
1148source "drivers/misc/Kconfig"
1149
1da177e4 1150source "drivers/ide/Kconfig"
1da177e4
LT
1151
1152source "drivers/scsi/Kconfig"
1153
eb370f0b
MM
1154source "drivers/ata/Kconfig"
1155
1da177e4
LT
1156source "drivers/md/Kconfig"
1157
1158source "drivers/message/fusion/Kconfig"
1159
1160source "drivers/ieee1394/Kconfig"
1161
1162source "drivers/message/i2o/Kconfig"
1163
d5950b43 1164source "drivers/net/Kconfig"
1da177e4
LT
1165
1166source "drivers/isdn/Kconfig"
1167
1168# input before char - char/joystick depends on it. As does USB.
1169
1170source "drivers/input/Kconfig"
1171
1172source "drivers/char/Kconfig"
1173
1174source "drivers/i2c/Kconfig"
1175
8ae12a0d
DB
1176source "drivers/spi/Kconfig"
1177
a9c5fff5
DB
1178source "drivers/gpio/Kconfig"
1179
04916c0e
AZ
1180source "drivers/w1/Kconfig"
1181
58273e55
RK
1182source "drivers/power/Kconfig"
1183
ad2f931d
JD
1184source "drivers/hwmon/Kconfig"
1185
70dfa3f8
RK
1186source "drivers/watchdog/Kconfig"
1187
58273e55 1188source "drivers/ssb/Kconfig"
1da177e4 1189
58273e55 1190#source "drivers/l3/Kconfig"
1da177e4 1191
a4e137ab
RK
1192source "drivers/mfd/Kconfig"
1193
1da177e4
LT
1194source "drivers/media/Kconfig"
1195
1196source "drivers/video/Kconfig"
1197
1198source "sound/Kconfig"
1199
c2dade51
SH
1200source "drivers/hid/Kconfig"
1201
1da177e4
LT
1202source "drivers/usb/Kconfig"
1203
1204source "drivers/mmc/Kconfig"
1205
58273e55
RK
1206source "drivers/leds/Kconfig"
1207
12b824fb
AZ
1208source "drivers/rtc/Kconfig"
1209
5816815f
DW
1210source "drivers/dma/Kconfig"
1211
abf07b19
DW
1212source "drivers/dca/Kconfig"
1213
2dc034a8
HJK
1214source "drivers/uio/Kconfig"
1215
1da177e4
LT
1216endmenu
1217
1218source "fs/Kconfig"
1219
1da177e4
LT
1220source "arch/arm/Kconfig.debug"
1221
1222source "security/Kconfig"
1223
1224source "crypto/Kconfig"
1225
1226source "lib/Kconfig"