[ARM] use bcd2bin/bin2bcd
[deliverable/linux.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)
1fe53268 20 select HAVE_GENERIC_DMA_COHERENT
1da177e4
LT
21 help
22 The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a 23 licensed by ARM Ltd and targeted at embedded applications and
1da177e4 24 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a 25 manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4
LT
26 Europe. There is an ARM Linux project with a web page at
27 <http://www.arm.linux.org.uk/>.
28
1a189b97
RK
29config HAVE_PWM
30 bool
31
75e7153a
RB
32config SYS_SUPPORTS_APM_EMULATION
33 bool
34
0a938b97
DB
35config GENERIC_GPIO
36 bool
37 default n
38
746140c7
KH
39config GENERIC_TIME
40 bool
41 default n
42
0567a0c0
KH
43config GENERIC_CLOCKEVENTS
44 bool
45 default n
46
a8655e83
CM
47config GENERIC_CLOCKEVENTS_BROADCAST
48 bool
49 depends on GENERIC_CLOCKEVENTS
50 default y if SMP && !LOCAL_TIMERS
51
1da177e4
LT
52config MMU
53 bool
54 default y
55
5ea81769
AV
56config NO_IOPORT
57 bool
58 default n
59
1da177e4
LT
60config EISA
61 bool
62 ---help---
63 The Extended Industry Standard Architecture (EISA) bus was
64 developed as an open alternative to the IBM MicroChannel bus.
65
66 The EISA bus provided some of the features of the IBM MicroChannel
67 bus while maintaining backward compatibility with cards made for
68 the older ISA bus. The EISA bus saw limited use between 1988 and
69 1995 when it was made obsolete by the PCI bus.
70
71 Say Y here if you are building a kernel for an EISA-based machine.
72
73 Otherwise, say N.
74
75config SBUS
76 bool
77
78config MCA
79 bool
80 help
81 MicroChannel Architecture is found in some IBM PS/2 machines and
82 laptops. It is a bus system similar to PCI or ISA. See
83 <file:Documentation/mca.txt> (and especially the web page given
84 there) before attempting to build an MCA bus kernel.
85
4a2581a0
TG
86config GENERIC_HARDIRQS
87 bool
88 default y
89
f16fb1ec
RK
90config STACKTRACE_SUPPORT
91 bool
92 default y
93
f76e9154
NP
94config HAVE_LATENCYTOP_SUPPORT
95 bool
96 depends on !SMP
97 default y
98
f16fb1ec
RK
99config LOCKDEP_SUPPORT
100 bool
101 default y
102
7ad1bcb2
RK
103config TRACE_IRQFLAGS_SUPPORT
104 bool
105 default y
106
4a2581a0
TG
107config HARDIRQS_SW_RESEND
108 bool
109 default y
110
111config GENERIC_IRQ_PROBE
112 bool
113 default y
114
95c354fe
NP
115config GENERIC_LOCKBREAK
116 bool
117 default y
118 depends on SMP && PREEMPT
119
1da177e4
LT
120config RWSEM_GENERIC_SPINLOCK
121 bool
122 default y
123
124config RWSEM_XCHGADD_ALGORITHM
125 bool
126
f0d1b0b3
DH
127config ARCH_HAS_ILOG2_U32
128 bool
129 default n
130
131config ARCH_HAS_ILOG2_U64
132 bool
133 default n
134
b89c3b16
AM
135config GENERIC_HWEIGHT
136 bool
137 default y
138
1da177e4
LT
139config GENERIC_CALIBRATE_DELAY
140 bool
141 default y
142
b0b933c0
DH
143config ARCH_SUPPORTS_AOUT
144 def_bool y
145
a08b6b79
Z
146config ARCH_MAY_HAVE_PC_FDC
147 bool
148
5ac6da66
CL
149config ZONE_DMA
150 bool
151 default y
152
1da177e4
LT
153config GENERIC_ISA_DMA
154 bool
155
1da177e4
LT
156config FIQ
157 bool
158
034d2f5a
AV
159config ARCH_MTD_XIP
160 bool
161
60a752ef
PZ
162config GENERIC_HARDIRQS_NO__DO_IRQ
163 bool
164 def_bool y
165
c0ffa3a9
MD
166if OPROFILE
167
168config OPROFILE_ARMV6
169 def_bool y
170 depends on CPU_V6 && !SMP
171 select OPROFILE_ARM11_CORE
172
173config OPROFILE_MPCORE
174 def_bool y
175 depends on CPU_V6 && SMP
176 select OPROFILE_ARM11_CORE
177
178config OPROFILE_ARM11_CORE
179 bool
180
181endif
182
c760fc19
HC
183config VECTORS_BASE
184 hex
6afd6fae 185 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
c760fc19
HC
186 default DRAM_BASE if REMAP_VECTORS_TO_RAM
187 default 0x00000000
188 help
189 The base address of exception vectors.
190
1da177e4
LT
191source "init/Kconfig"
192
193menu "System Type"
194
195choice
196 prompt "ARM system type"
6a0e2430 197 default ARCH_VERSATILE
1da177e4 198
4af6fee1
DS
199config ARCH_AAEC2000
200 bool "Agilent AAEC-2000 based"
201 select ARM_AMBA
9483a578 202 select HAVE_CLK
4af6fee1
DS
203 help
204 This enables support for systems based on the Agilent AAEC-2000
205
206config ARCH_INTEGRATOR
207 bool "ARM Ltd. Integrator family"
208 select ARM_AMBA
9483a578 209 select HAVE_CLK
4af6fee1
DS
210 select ICST525
211 help
212 Support for ARM's Integrator platform.
213
214config ARCH_REALVIEW
215 bool "ARM Ltd. RealView family"
216 select ARM_AMBA
9483a578 217 select HAVE_CLK
4af6fee1 218 select ICST307
85802afe 219 select GENERIC_TIME
ae30ceac 220 select GENERIC_CLOCKEVENTS
4af6fee1
DS
221 help
222 This enables support for ARM Ltd RealView boards.
223
224config ARCH_VERSATILE
225 bool "ARM Ltd. Versatile family"
226 select ARM_AMBA
227 select ARM_VIC
9483a578 228 select HAVE_CLK
4af6fee1 229 select ICST307
b49c87c2 230 select GENERIC_TIME
89df1272 231 select GENERIC_CLOCKEVENTS
4af6fee1
DS
232 help
233 This enables support for ARM Ltd Versatile board.
234
8fc5ffa0
AV
235config ARCH_AT91
236 bool "Atmel AT91"
0a938b97 237 select GENERIC_GPIO
93686ae8 238 select HAVE_CLK
4af6fee1 239 help
2b3b3516
AV
240 This enables support for systems based on the Atmel AT91RM9200,
241 AT91SAM9 and AT91CAP9 processors.
4af6fee1 242
1da177e4 243config ARCH_CLPS7500
4af6fee1 244 bool "Cirrus CL-PS7500FE"
1da177e4 245 select TIMER_ACORN
f7e68bbf 246 select ISA
e4169889 247 select NO_IOPORT
f999b8bd
MM
248 help
249 Support for the Cirrus Logic PS7500FE system-on-a-chip.
1da177e4
LT
250
251config ARCH_CLPS711X
4af6fee1 252 bool "Cirrus Logic CLPS711x/EP721x-based"
f999b8bd
MM
253 help
254 Support for Cirrus Logic 711x/721x based boards.
1da177e4 255
1da177e4
LT
256config ARCH_EBSA110
257 bool "EBSA-110"
f7e68bbf 258 select ISA
c5eb2a2b 259 select NO_IOPORT
1da177e4
LT
260 help
261 This is an evaluation board for the StrongARM processor available
f6c8965a 262 from Digital. It has limited hardware on-board, including an
1da177e4
LT
263 Ethernet interface, two PCMCIA sockets, two serial ports and a
264 parallel port.
265
e7736d47
LB
266config ARCH_EP93XX
267 bool "EP93xx-based"
268 select ARM_AMBA
269 select ARM_VIC
4e9f9fd5 270 select GENERIC_GPIO
9483a578 271 select HAVE_CLK
7444a72e 272 select ARCH_REQUIRE_GPIOLIB
e7736d47
LB
273 help
274 This enables support for the Cirrus EP93xx series of CPUs.
275
1da177e4
LT
276config ARCH_FOOTBRIDGE
277 bool "FootBridge"
278 select FOOTBRIDGE
f999b8bd
MM
279 help
280 Support for systems based on the DC21285 companion chip
281 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 282
4af6fee1
DS
283config ARCH_NETX
284 bool "Hilscher NetX based"
285 select ARM_VIC
f999b8bd 286 help
4af6fee1
DS
287 This enables support for systems based on the Hilscher NetX Soc
288
289config ARCH_H720X
290 bool "Hynix HMS720x-based"
291 select ISA_DMA_API
292 help
293 This enables support for systems based on the Hynix HMS720x
294
295config ARCH_IMX
296 bool "IMX"
b3e6a508 297 select GENERIC_GPIO
89bba435
PP
298 select GENERIC_TIME
299 select GENERIC_CLOCKEVENTS
4af6fee1
DS
300 help
301 Support for Motorola's i.MX family of processors (MX1, MXL).
1da177e4 302
3b938be6
RK
303config ARCH_IOP13XX
304 bool "IOP13xx-based"
305 depends on MMU
306 select PLAT_IOP
307 select PCI
308 select ARCH_SUPPORTS_MSI
309 help
310 Support for Intel's IOP13XX (XScale) family of processors.
311
3f7e5815
LB
312config ARCH_IOP32X
313 bool "IOP32x-based"
a4f7e763 314 depends on MMU
7ae1f7ec 315 select PLAT_IOP
f7e68bbf 316 select PCI
63f385cd 317 select GENERIC_GPIO
bb2b180c 318 select ARCH_REQUIRE_GPIOLIB
f999b8bd 319 help
3f7e5815
LB
320 Support for Intel's 80219 and IOP32X (XScale) family of
321 processors.
322
323config ARCH_IOP33X
324 bool "IOP33x-based"
325 depends on MMU
7ae1f7ec 326 select PLAT_IOP
3f7e5815 327 select PCI
63f385cd 328 select GENERIC_GPIO
bb2b180c 329 select ARCH_REQUIRE_GPIOLIB
3f7e5815
LB
330 help
331 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 332
3b938be6
RK
333config ARCH_IXP23XX
334 bool "IXP23XX-based"
a4f7e763 335 depends on MMU
3b938be6 336 select PCI
f999b8bd 337 help
3b938be6 338 Support for Intel's IXP23xx (XScale) family of processors.
1da177e4
LT
339
340config ARCH_IXP2000
341 bool "IXP2400/2800-based"
a4f7e763 342 depends on MMU
f7e68bbf 343 select PCI
f999b8bd
MM
344 help
345 Support for Intel's IXP2400/2800 (XScale) family of processors.
1da177e4 346
3b938be6
RK
347config ARCH_IXP4XX
348 bool "IXP4xx-based"
a4f7e763 349 depends on MMU
8858e9af 350 select GENERIC_GPIO
3b938be6
RK
351 select GENERIC_TIME
352 select GENERIC_CLOCKEVENTS
c4713074 353 help
3b938be6 354 Support for Intel's IXP4XX (XScale) family of processors.
c4713074 355
1da177e4
LT
356config ARCH_L7200
357 bool "LinkUp-L7200"
358 select FIQ
359 help
360 Say Y here if you intend to run this kernel on a LinkUp Systems
361 L7200 Software Development Board which uses an ARM720T processor.
362 Information on this board can be obtained at:
363
364 <http://www.linkupsys.com/>
365
366 If you have any questions or comments about the Linux kernel port
367 to this board, send e-mail to <sjhill@cotw.com>.
368
651c74c7
SB
369config ARCH_KIRKWOOD
370 bool "Marvell Kirkwood"
371 select PCI
372 select GENERIC_TIME
373 select GENERIC_CLOCKEVENTS
374 select PLAT_ORION
375 help
376 Support for the following Marvell Kirkwood series SoCs:
377 88F6180, 88F6192 and 88F6281.
378
c53c9cf6
AV
379config ARCH_KS8695
380 bool "Micrel/Kendin KS8695"
8a87a996 381 select GENERIC_GPIO
c53c9cf6
AV
382 help
383 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
384 System-on-Chip devices.
385
9918cda5
UKK
386config ARCH_NS9XXX
387 bool "NetSilicon NS9xxx"
689f2a01 388 select GENERIC_GPIO
cef5975d 389 select GENERIC_TIME
c0bb87f7 390 select GENERIC_CLOCKEVENTS
9483a578 391 select HAVE_CLK
9918cda5
UKK
392 help
393 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
394 System.
395
396 <http://www.digi.com/products/microprocessors/index.jsp>
397
777f9beb
LB
398config ARCH_LOKI
399 bool "Marvell Loki (88RC8480)"
400 select GENERIC_TIME
401 select GENERIC_CLOCKEVENTS
402 select PLAT_ORION
403 help
404 Support for the Marvell Loki (88RC8480) SoC.
405
794d15b2
SS
406config ARCH_MV78XX0
407 bool "Marvell MV78xx0"
408 select PCI
409 select GENERIC_TIME
410 select GENERIC_CLOCKEVENTS
411 select PLAT_ORION
412 help
413 Support for the following Marvell MV78xx0 series SoCs:
414 MV781x0, MV782x0.
415
52c543f9
QJ
416config ARCH_MXC
417 bool "Freescale MXC/iMX-based"
d0f349fb
JB
418 select GENERIC_TIME
419 select GENERIC_CLOCKEVENTS
52c543f9 420 select ARCH_MTD_XIP
07bd1a6c 421 select GENERIC_GPIO
bb2b180c 422 select ARCH_REQUIRE_GPIOLIB
52c543f9
QJ
423 help
424 Support for Freescale MXC/iMX-based family of processors
425
9dd0b194 426config ARCH_ORION5X
585cf175
TP
427 bool "Marvell Orion"
428 depends on MMU
038ee083 429 select PCI
01af72e4 430 select GENERIC_GPIO
51cbff1d
TP
431 select GENERIC_TIME
432 select GENERIC_CLOCKEVENTS
69b02f6a 433 select PLAT_ORION
585cf175 434 help
9dd0b194 435 Support for the following Marvell Orion 5x series SoCs:
d2b2a6bb
LB
436 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
437 Orion-2 (5281).
585cf175 438
4af6fee1
DS
439config ARCH_PNX4008
440 bool "Philips Nexperia PNX4008 Mobile"
9483a578 441 select HAVE_CLK
4af6fee1
DS
442 help
443 This enables support for Philips PNX4008 mobile platform.
444
1da177e4 445config ARCH_PXA
2c8086a5 446 bool "PXA2xx/PXA3xx-based"
a4f7e763 447 depends on MMU
034d2f5a 448 select ARCH_MTD_XIP
0a938b97 449 select GENERIC_GPIO
9483a578 450 select HAVE_CLK
7444a72e 451 select ARCH_REQUIRE_GPIOLIB
45cf5eef 452 select GENERIC_TIME
981d0f39 453 select GENERIC_CLOCKEVENTS
a88264c2 454 select TICK_ONESHOT
f999b8bd 455 help
2c8086a5 456 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
1da177e4
LT
457
458config ARCH_RPC
459 bool "RiscPC"
460 select ARCH_ACORN
461 select FIQ
462 select TIMER_ACORN
a08b6b79 463 select ARCH_MAY_HAVE_PC_FDC
341eb781 464 select HAVE_PATA_PLATFORM
065909b9 465 select ISA_DMA_API
5ea81769 466 select NO_IOPORT
1da177e4
LT
467 help
468 On the Acorn Risc-PC, Linux can support the internal IDE disk and
469 CD-ROM interface, serial and parallel port, and the floppy drive.
470
471config ARCH_SA1100
472 bool "SA1100-based"
f7e68bbf 473 select ISA
3cd9e19e 474 select ARCH_DISCONTIGMEM_ENABLE
05944d74
RK
475 select ARCH_SPARSEMEM_ENABLE
476 select ARCH_SELECT_MEMORY_MODEL
034d2f5a 477 select ARCH_MTD_XIP
0a938b97 478 select GENERIC_GPIO
d142b6e7 479 select GENERIC_TIME
3e238be2 480 select GENERIC_CLOCKEVENTS
9483a578 481 select HAVE_CLK
3e238be2 482 select TICK_ONESHOT
7444a72e 483 select ARCH_REQUIRE_GPIOLIB
f999b8bd
MM
484 help
485 Support for StrongARM 11x0 based boards.
1da177e4
LT
486
487config ARCH_S3C2410
e4d06e39 488 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
0a938b97 489 select GENERIC_GPIO
9483a578 490 select HAVE_CLK
1da177e4
LT
491 help
492 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
493 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
f6c8965a 494 the Samsung SMDK2410 development board (and derivatives).
1da177e4
LT
495
496config ARCH_SHARK
497 bool "Shark"
f7e68bbf
RK
498 select ISA
499 select ISA_DMA
500 select PCI
f999b8bd
MM
501 help
502 Support for the StrongARM based Digital DNARD machine, also known
503 as "Shark" (<http://www.shark-linux.de/shark.html>).
1da177e4
LT
504
505config ARCH_LH7A40X
506 bool "Sharp LH7A40X"
507 help
508 Say Y here for systems based on one of the Sharp LH7A40X
509 System on a Chip processors. These CPUs include an ARM922T
510 core with a wide array of integrated devices for
511 hand-held and low-power applications.
512
7c6337e2
KH
513config ARCH_DAVINCI
514 bool "TI DaVinci"
515 select GENERIC_TIME
516 select GENERIC_CLOCKEVENTS
3d9edf09 517 select GENERIC_GPIO
9483a578 518 select HAVE_CLK
7c6337e2
KH
519 help
520 Support for TI's DaVinci platform.
521
3b938be6
RK
522config ARCH_OMAP
523 bool "TI OMAP"
524 select GENERIC_GPIO
9483a578 525 select HAVE_CLK
7444a72e 526 select ARCH_REQUIRE_GPIOLIB
3b938be6 527 select GENERIC_TIME
06cad098 528 select GENERIC_CLOCKEVENTS
3b938be6
RK
529 help
530 Support for TI's OMAP platform (OMAP1 and OMAP2).
531
3042102a
BS
532config ARCH_MSM7X00A
533 bool "Qualcomm MSM7X00A"
534 select GENERIC_TIME
535 select GENERIC_CLOCKEVENTS
536 help
537 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
538 apps processor of the MSM7X00A and depends on a shared memory
539 interface to the ARM9 modem processor which runs the baseband stack
540 and controls some vital subsystems (clock and power control, etc).
541 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
542
1da177e4
LT
543endchoice
544
545source "arch/arm/mach-clps711x/Kconfig"
546
e7736d47
LB
547source "arch/arm/mach-ep93xx/Kconfig"
548
1da177e4
LT
549source "arch/arm/mach-footbridge/Kconfig"
550
551source "arch/arm/mach-integrator/Kconfig"
552
3f7e5815
LB
553source "arch/arm/mach-iop32x/Kconfig"
554
555source "arch/arm/mach-iop33x/Kconfig"
1da177e4 556
285f5fa7
DW
557source "arch/arm/mach-iop13xx/Kconfig"
558
1da177e4
LT
559source "arch/arm/mach-ixp4xx/Kconfig"
560
561source "arch/arm/mach-ixp2000/Kconfig"
562
c4713074
LB
563source "arch/arm/mach-ixp23xx/Kconfig"
564
777f9beb
LB
565source "arch/arm/mach-loki/Kconfig"
566
794d15b2
SS
567source "arch/arm/mach-mv78xx0/Kconfig"
568
1da177e4
LT
569source "arch/arm/mach-pxa/Kconfig"
570
571source "arch/arm/mach-sa1100/Kconfig"
572
d48af15e
TL
573source "arch/arm/plat-omap/Kconfig"
574
575source "arch/arm/mach-omap1/Kconfig"
1da177e4 576
1dbae815
TL
577source "arch/arm/mach-omap2/Kconfig"
578
9dd0b194 579source "arch/arm/mach-orion5x/Kconfig"
585cf175 580
651c74c7 581source "arch/arm/mach-kirkwood/Kconfig"
585cf175 582
a21765a7 583source "arch/arm/plat-s3c24xx/Kconfig"
d58153d8 584source "arch/arm/plat-s3c/Kconfig"
a21765a7
BD
585
586if ARCH_S3C2410
587source "arch/arm/mach-s3c2400/Kconfig"
1da177e4 588source "arch/arm/mach-s3c2410/Kconfig"
a21765a7
BD
589source "arch/arm/mach-s3c2412/Kconfig"
590source "arch/arm/mach-s3c2440/Kconfig"
591source "arch/arm/mach-s3c2442/Kconfig"
e4d06e39 592source "arch/arm/mach-s3c2443/Kconfig"
a21765a7 593endif
1da177e4
LT
594
595source "arch/arm/mach-lh7a40x/Kconfig"
596
597source "arch/arm/mach-imx/Kconfig"
598
599source "arch/arm/mach-h720x/Kconfig"
600
601source "arch/arm/mach-versatile/Kconfig"
602
038c5b60
BN
603source "arch/arm/mach-aaec2000/Kconfig"
604
8ad68bbf
CM
605source "arch/arm/mach-realview/Kconfig"
606
9d041268 607source "arch/arm/mach-at91/Kconfig"
73a59c1c 608
52c543f9
QJ
609source "arch/arm/plat-mxc/Kconfig"
610
bb6d8c88
SH
611source "arch/arm/mach-netx/Kconfig"
612
9918cda5
UKK
613source "arch/arm/mach-ns9xxx/Kconfig"
614
7c6337e2
KH
615source "arch/arm/mach-davinci/Kconfig"
616
c53c9cf6
AV
617source "arch/arm/mach-ks8695/Kconfig"
618
9e73c84c
BS
619source "arch/arm/mach-msm/Kconfig"
620
1da177e4
LT
621# Definitions to make life easier
622config ARCH_ACORN
623 bool
624
7ae1f7ec
LB
625config PLAT_IOP
626 bool
627
69b02f6a
LB
628config PLAT_ORION
629 bool
630
1da177e4
LT
631source arch/arm/mm/Kconfig
632
afe4b25e
LB
633config IWMMXT
634 bool "Enable iWMMXt support"
6340aa61 635 depends on CPU_XSCALE || CPU_XSC3
2c8086a5 636 default y if PXA27x || PXA3xx
afe4b25e
LB
637 help
638 Enable support for iWMMXt context switching at run time if
639 running on a CPU that supports it.
640
1da177e4
LT
641# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
642config XSCALE_PMU
643 bool
644 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
645 default y
646
3b93e7b0
HC
647if !MMU
648source "arch/arm/Kconfig-nommu"
649endif
650
1da177e4
LT
651endmenu
652
653source "arch/arm/common/Kconfig"
654
655config FORCE_MAX_ZONEORDER
656 int
657 depends on SA1111
658 default "9"
659
660menu "Bus support"
661
662config ARM_AMBA
663 bool
664
665config ISA
666 bool
1da177e4
LT
667 help
668 Find out whether you have ISA slots on your motherboard. ISA is the
669 name of a bus system, i.e. the way the CPU talks to the other stuff
670 inside your box. Other bus systems are PCI, EISA, MicroChannel
671 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
672 newer boards don't support it. If you have ISA, say Y, otherwise N.
673
065909b9 674# Select ISA DMA controller support
1da177e4
LT
675config ISA_DMA
676 bool
065909b9 677 select ISA_DMA_API
1da177e4 678
065909b9 679# Select ISA DMA interface
5cae841b
AV
680config ISA_DMA_API
681 bool
5cae841b 682
1da177e4 683config PCI
a0113a99 684 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
1da177e4
LT
685 help
686 Find out whether you have a PCI motherboard. PCI is the name of a
687 bus system, i.e. the way the CPU talks to the other stuff inside
688 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
689 VESA. If you have PCI, say Y, otherwise N.
690
36e23590
MW
691config PCI_SYSCALL
692 def_bool PCI
693
1da177e4
LT
694# Select the host bridge type
695config PCI_HOST_VIA82C505
696 bool
697 depends on PCI && ARCH_SHARK
698 default y
699
a0113a99
MR
700config PCI_HOST_ITE8152
701 bool
702 depends on PCI && MACH_ARMCORE
703 default y
704 select DMABOUNCE
705
1da177e4
LT
706source "drivers/pci/Kconfig"
707
708source "drivers/pcmcia/Kconfig"
709
710endmenu
711
712menu "Kernel Features"
713
0567a0c0
KH
714source "kernel/time/Kconfig"
715
1da177e4
LT
716config SMP
717 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
78fdcb42 718 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
f6dd9fa5 719 select USE_GENERIC_SMP_HELPERS
1da177e4
LT
720 help
721 This enables support for systems with more than one CPU. If you have
722 a system with only one CPU, like most personal computers, say N. If
723 you have a system with more than one CPU, say Y.
724
725 If you say N here, the kernel will run on single and multiprocessor
726 machines, but will use only one CPU of a multiprocessor machine. If
727 you say Y here, the kernel will run on many, but not all, single
728 processor machines. On a single processor machine, the kernel will
729 run faster if you say N here.
730
03502faa 731 See also <file:Documentation/i386/IO-APIC.txt>,
1da177e4
LT
732 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
733 <http://www.linuxdoc.org/docs.html#howto>.
734
735 If you don't know what to do here, say N.
736
737config NR_CPUS
738 int "Maximum number of CPUs (2-32)"
739 range 2 32
740 depends on SMP
741 default "4"
742
a054a811
RK
743config HOTPLUG_CPU
744 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
745 depends on SMP && HOTPLUG && EXPERIMENTAL
746 help
747 Say Y here to experiment with turning CPUs off and on. CPUs
748 can be controlled through /sys/devices/system/cpu.
749
37ee16ae
RK
750config LOCAL_TIMERS
751 bool "Use local timer interrupts"
78fdcb42 752 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
37ee16ae
RK
753 default y
754 help
755 Enable support for local timers on SMP platforms, rather then the
756 legacy IPI broadcast method. Local timers allows the system
757 accounting to be spread across the timer interval, preventing a
758 "thundering herd" at every timer tick.
759
1da177e4
LT
760config PREEMPT
761 bool "Preemptible Kernel (EXPERIMENTAL)"
762 depends on EXPERIMENTAL
763 help
764 This option reduces the latency of the kernel when reacting to
765 real-time or interactive events by allowing a low priority process to
766 be preempted even if it is in kernel mode executing a system call.
767 This allows applications to run more reliably even when the system is
768 under load.
769
770 Say Y here if you are building a kernel for a desktop, embedded
771 or real-time system. Say N if you are unsure.
772
f8065813
RK
773config HZ
774 int
775 default 128 if ARCH_L7200
776 default 200 if ARCH_EBSA110 || ARCH_S3C2410
bfe65704 777 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
5248c657 778 default AT91_TIMER_HZ if ARCH_AT91
f8065813
RK
779 default 100
780
704bdda0
NP
781config AEABI
782 bool "Use the ARM EABI to compile the kernel"
783 help
784 This option allows for the kernel to be compiled using the latest
785 ARM ABI (aka EABI). This is only useful if you are using a user
786 space environment that is also compiled with EABI.
787
788 Since there are major incompatibilities between the legacy ABI and
789 EABI, especially with regard to structure member alignment, this
790 option also changes the kernel syscall calling convention to
791 disambiguate both ABIs and allow for backward compatibility support
792 (selected with CONFIG_OABI_COMPAT).
793
794 To use this you need GCC version 4.0.0 or later.
795
6c90c872 796config OABI_COMPAT
a73a3ff1 797 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
61c484d4 798 depends on AEABI && EXPERIMENTAL
6c90c872
NP
799 default y
800 help
801 This option preserves the old syscall interface along with the
802 new (ARM EABI) one. It also provides a compatibility layer to
803 intercept syscalls that have structure arguments which layout
804 in memory differs between the legacy ABI and the new ARM EABI
805 (only for non "thumb" binaries). This option adds a tiny
806 overhead to all syscalls and produces a slightly larger kernel.
807 If you know you'll be using only pure EABI user space then you
808 can say N here. If this option is not selected and you attempt
809 to execute a legacy ABI binary then the result will be
810 UNPREDICTABLE (in fact it can be predicted that it won't work
811 at all). If in doubt say Y.
812
3f22ab27 813config ARCH_DISCONTIGMEM_ENABLE
1da177e4 814 bool
f7e68bbf 815 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
1da177e4
LT
816 help
817 Say Y to support efficient handling of discontiguous physical memory,
818 for architectures which are either NUMA (Non-Uniform Memory Access)
819 or have huge holes in the physical address space for other reasons.
820 See <file:Documentation/vm/numa> for more.
821
05944d74
RK
822config ARCH_SPARSEMEM_ENABLE
823 bool
824
825config ARCH_SELECT_MEMORY_MODEL
826 bool
827
c80d79d7
YG
828config NODES_SHIFT
829 int
830 default "4" if ARCH_LH7A40X
831 default "2"
832 depends on NEED_MULTIPLE_NODES
833
3f22ab27
DH
834source "mm/Kconfig"
835
1da177e4
LT
836config LEDS
837 bool "Timer and CPU usage LEDs"
e055d5bf 838 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
1da177e4
LT
839 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
840 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
841 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
73a59c1c 842 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
c53c9cf6 843 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
817eb210 844 ARCH_KS8695 || MACH_RD88F5182
1da177e4
LT
845 help
846 If you say Y here, the LEDs on your machine will be used
847 to provide useful information about your current system status.
848
849 If you are compiling a kernel for a NetWinder or EBSA-285, you will
850 be able to select which LEDs are active using the options below. If
851 you are compiling a kernel for the EBSA-110 or the LART however, the
852 red LED will simply flash regularly to indicate that the system is
853 still functional. It is safe to say Y here if you have a CATS
854 system, but the driver will do nothing.
855
856config LEDS_TIMER
857 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
eebdf7d7
DB
858 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
859 || MACH_OMAP_PERSEUS2
1da177e4 860 depends on LEDS
0567a0c0 861 depends on !GENERIC_CLOCKEVENTS
1da177e4
LT
862 default y if ARCH_EBSA110
863 help
864 If you say Y here, one of the system LEDs (the green one on the
865 NetWinder, the amber one on the EBSA285, or the red one on the LART)
866 will flash regularly to indicate that the system is still
867 operational. This is mainly useful to kernel hackers who are
868 debugging unstable kernels.
869
870 The LART uses the same LED for both Timer LED and CPU usage LED
871 functions. You may choose to use both, but the Timer LED function
872 will overrule the CPU usage LED.
873
874config LEDS_CPU
875 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
eebdf7d7
DB
876 !ARCH_OMAP) \
877 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
878 || MACH_OMAP_PERSEUS2
1da177e4
LT
879 depends on LEDS
880 help
881 If you say Y here, the red LED will be used to give a good real
882 time indication of CPU usage, by lighting whenever the idle task
883 is not currently executing.
884
885 The LART uses the same LED for both Timer LED and CPU usage LED
886 functions. You may choose to use both, but the Timer LED function
887 will overrule the CPU usage LED.
888
889config ALIGNMENT_TRAP
890 bool
f12d0d7c 891 depends on CPU_CP15_MMU
1da177e4
LT
892 default y if !ARCH_EBSA110
893 help
84eb8d06 894 ARM processors cannot fetch/store information which is not
1da177e4
LT
895 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
896 address divisible by 4. On 32-bit ARM processors, these non-aligned
897 fetch/store instructions will be emulated in software if you say
898 here, which has a severe performance impact. This is necessary for
899 correct operation of some network protocols. With an IP-only
900 configuration it is safe to say N, otherwise say Y.
901
902endmenu
903
904menu "Boot options"
905
906# Compressed boot loader in ROM. Yes, we really want to ask about
907# TEXT and BSS so we preserve their values in the config files.
908config ZBOOT_ROM_TEXT
909 hex "Compressed ROM boot loader base address"
910 default "0"
911 help
912 The physical address at which the ROM-able zImage is to be
913 placed in the target. Platforms which normally make use of
914 ROM-able zImage formats normally set this to a suitable
915 value in their defconfig file.
916
917 If ZBOOT_ROM is not enabled, this has no effect.
918
919config ZBOOT_ROM_BSS
920 hex "Compressed ROM boot loader BSS address"
921 default "0"
922 help
f8c440b2
DF
923 The base address of an area of read/write memory in the target
924 for the ROM-able zImage which must be available while the
925 decompressor is running. It must be large enough to hold the
926 entire decompressed kernel plus an additional 128 KiB.
927 Platforms which normally make use of ROM-able zImage formats
928 normally set this to a suitable value in their defconfig file.
1da177e4
LT
929
930 If ZBOOT_ROM is not enabled, this has no effect.
931
932config ZBOOT_ROM
933 bool "Compressed boot loader in ROM/flash"
934 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
935 help
936 Say Y here if you intend to execute your compressed kernel image
937 (zImage) directly from ROM or flash. If unsure, say N.
938
939config CMDLINE
940 string "Default kernel command string"
941 default ""
942 help
943 On some architectures (EBSA110 and CATS), there is currently no way
944 for the boot loader to pass arguments to the kernel. For these
945 architectures, you should supply some command-line options at build
946 time by entering them here. As a minimum, you should specify the
947 memory size and the root device (e.g., mem=64M root=/dev/nfs).
948
949config XIP_KERNEL
950 bool "Kernel Execute-In-Place from ROM"
951 depends on !ZBOOT_ROM
952 help
953 Execute-In-Place allows the kernel to run from non-volatile storage
954 directly addressable by the CPU, such as NOR flash. This saves RAM
955 space since the text section of the kernel is not loaded from flash
956 to RAM. Read-write sections, such as the data section and stack,
957 are still copied to RAM. The XIP kernel is not compressed since
958 it has to run directly from flash, so it will take more space to
959 store it. The flash address used to link the kernel object files,
960 and for storing it, is configuration dependent. Therefore, if you
961 say Y here, you must know the proper physical address where to
962 store the kernel image depending on your own flash memory usage.
963
964 Also note that the make target becomes "make xipImage" rather than
965 "make zImage" or "make Image". The final kernel binary to put in
966 ROM memory will be arch/arm/boot/xipImage.
967
968 If unsure, say N.
969
970config XIP_PHYS_ADDR
971 hex "XIP Kernel Physical Location"
972 depends on XIP_KERNEL
973 default "0x00080000"
974 help
975 This is the physical address in your flash memory the kernel will
976 be linked for and stored to. This address is dependent on your
977 own flash usage.
978
c587e4a6
RP
979config KEXEC
980 bool "Kexec system call (EXPERIMENTAL)"
981 depends on EXPERIMENTAL
982 help
983 kexec is a system call that implements the ability to shutdown your
984 current kernel, and to start another kernel. It is like a reboot
01dd2fbf 985 but it is independent of the system firmware. And like a reboot
c587e4a6
RP
986 you can start any kernel with it, not just Linux.
987
988 It is an ongoing process to be certain the hardware in a machine
989 is properly shutdown, so do not be surprised if this code does not
990 initially work for you. It may help to enable device hotplugging
991 support.
992
4cd9d6f7
RP
993config ATAGS_PROC
994 bool "Export atags in procfs"
b98d7291
UL
995 depends on KEXEC
996 default y
4cd9d6f7
RP
997 help
998 Should the atags used to boot the kernel be exported in an "atags"
999 file in procfs. Useful with kexec.
1000
1da177e4
LT
1001endmenu
1002
9e2697ff 1003if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
1da177e4
LT
1004
1005menu "CPU Frequency scaling"
1006
1007source "drivers/cpufreq/Kconfig"
1008
1009config CPU_FREQ_SA1100
1010 bool
07c6d48f 1011 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
1da177e4
LT
1012 default y
1013
1014config CPU_FREQ_SA1110
1015 bool
1016 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1017 default y
1018
1019config CPU_FREQ_INTEGRATOR
1020 tristate "CPUfreq driver for ARM Integrator CPUs"
1021 depends on ARCH_INTEGRATOR && CPU_FREQ
1022 default y
1023 help
1024 This enables the CPUfreq driver for ARM Integrator CPUs.
1025
1026 For details, take a look at <file:Documentation/cpu-freq>.
1027
1028 If in doubt, say Y.
1029
3c8cd0cc
PP
1030config CPU_FREQ_IMX
1031 tristate "CPUfreq driver for i.MX CPUs"
1032 depends on ARCH_IMX && CPU_FREQ
1033 default n
1034 help
1035 This enables the CPUfreq driver for i.MX CPUs.
1036
1037 If in doubt, say N.
1038
9e2697ff
RK
1039config CPU_FREQ_PXA
1040 bool
1041 depends on CPU_FREQ && ARCH_PXA && PXA25x
1042 default y
1043 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1044
1da177e4
LT
1045endmenu
1046
1047endif
1048
1049menu "Floating point emulation"
1050
1051comment "At least one emulation must be selected"
1052
1053config FPE_NWFPE
1054 bool "NWFPE math emulation"
8993a44c 1055 depends on !AEABI || OABI_COMPAT
1da177e4
LT
1056 ---help---
1057 Say Y to include the NWFPE floating point emulator in the kernel.
1058 This is necessary to run most binaries. Linux does not currently
1059 support floating point hardware so you need to say Y here even if
1060 your machine has an FPA or floating point co-processor podule.
1061
1062 You may say N here if you are going to load the Acorn FPEmulator
1063 early in the bootup.
1064
1065config FPE_NWFPE_XP
1066 bool "Support extended precision"
bedf142b 1067 depends on FPE_NWFPE
1da177e4
LT
1068 help
1069 Say Y to include 80-bit support in the kernel floating-point
1070 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1071 Note that gcc does not generate 80-bit operations by default,
1072 so in most cases this option only enlarges the size of the
1073 floating point emulator without any good reason.
1074
1075 You almost surely want to say N here.
1076
1077config FPE_FASTFPE
1078 bool "FastFPE math emulation (EXPERIMENTAL)"
8993a44c 1079 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1da177e4
LT
1080 ---help---
1081 Say Y here to include the FAST floating point emulator in the kernel.
1082 This is an experimental much faster emulator which now also has full
1083 precision for the mantissa. It does not support any exceptions.
1084 It is very simple, and approximately 3-6 times faster than NWFPE.
1085
1086 It should be sufficient for most programs. It may be not suitable
1087 for scientific calculations, but you have to check this for yourself.
1088 If you do not feel you need a faster FP emulation you should better
1089 choose NWFPE.
1090
1091config VFP
1092 bool "VFP-format floating point maths"
c00d4ffd 1093 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1da177e4
LT
1094 help
1095 Say Y to include VFP support code in the kernel. This is needed
1096 if your hardware includes a VFP unit.
1097
1098 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1099 release notes and additional status information.
1100
1101 Say N if your target does not have VFP hardware.
1102
25ebee02
CM
1103config VFPv3
1104 bool
1105 depends on VFP
1106 default y if CPU_V7
1107
b5872db4
CM
1108config NEON
1109 bool "Advanced SIMD (NEON) Extension support"
1110 depends on VFPv3 && CPU_V7
1111 help
1112 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1113 Extension.
1114
1da177e4
LT
1115endmenu
1116
1117menu "Userspace binary formats"
1118
1119source "fs/Kconfig.binfmt"
1120
1121config ARTHUR
1122 tristate "RISC OS personality"
704bdda0 1123 depends on !AEABI
1da177e4
LT
1124 help
1125 Say Y here to include the kernel code necessary if you want to run
1126 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1127 experimental; if this sounds frightening, say N and sleep in peace.
1128 You can also say M here to compile this support as a module (which
1129 will be called arthur).
1130
1131endmenu
1132
1133menu "Power management options"
1134
eceab4ac 1135source "kernel/power/Kconfig"
1da177e4 1136
f4cb5700
JB
1137config ARCH_SUSPEND_POSSIBLE
1138 def_bool y
1139
1da177e4
LT
1140endmenu
1141
d5950b43
SR
1142source "net/Kconfig"
1143
1da177e4
LT
1144menu "Device Drivers"
1145
1146source "drivers/base/Kconfig"
1147
c35bf4a5
PM
1148source "drivers/connector/Kconfig"
1149
f12d0d7c 1150if ALIGNMENT_TRAP || !CPU_CP15_MMU
1da177e4
LT
1151source "drivers/mtd/Kconfig"
1152endif
1153
1154source "drivers/parport/Kconfig"
1155
1156source "drivers/pnp/Kconfig"
1157
1158source "drivers/block/Kconfig"
1159
58273e55
RK
1160# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1161
1162source "drivers/misc/Kconfig"
1163
1da177e4 1164source "drivers/ide/Kconfig"
1da177e4
LT
1165
1166source "drivers/scsi/Kconfig"
1167
eb370f0b
MM
1168source "drivers/ata/Kconfig"
1169
1da177e4
LT
1170source "drivers/md/Kconfig"
1171
1172source "drivers/message/fusion/Kconfig"
1173
1174source "drivers/ieee1394/Kconfig"
1175
1176source "drivers/message/i2o/Kconfig"
1177
d5950b43 1178source "drivers/net/Kconfig"
1da177e4
LT
1179
1180source "drivers/isdn/Kconfig"
1181
1182# input before char - char/joystick depends on it. As does USB.
1183
1184source "drivers/input/Kconfig"
1185
1186source "drivers/char/Kconfig"
1187
1188source "drivers/i2c/Kconfig"
1189
8ae12a0d
DB
1190source "drivers/spi/Kconfig"
1191
a9c5fff5
DB
1192source "drivers/gpio/Kconfig"
1193
04916c0e
AZ
1194source "drivers/w1/Kconfig"
1195
58273e55
RK
1196source "drivers/power/Kconfig"
1197
ad2f931d
JD
1198source "drivers/hwmon/Kconfig"
1199
70dfa3f8
RK
1200source "drivers/watchdog/Kconfig"
1201
58273e55 1202source "drivers/ssb/Kconfig"
1da177e4 1203
58273e55 1204#source "drivers/l3/Kconfig"
1da177e4 1205
a4e137ab
RK
1206source "drivers/mfd/Kconfig"
1207
1da177e4
LT
1208source "drivers/media/Kconfig"
1209
1210source "drivers/video/Kconfig"
1211
1212source "sound/Kconfig"
1213
c2dade51
SH
1214source "drivers/hid/Kconfig"
1215
1da177e4
LT
1216source "drivers/usb/Kconfig"
1217
1218source "drivers/mmc/Kconfig"
1219
58273e55
RK
1220source "drivers/leds/Kconfig"
1221
12b824fb
AZ
1222source "drivers/rtc/Kconfig"
1223
5816815f
DW
1224source "drivers/dma/Kconfig"
1225
abf07b19
DW
1226source "drivers/dca/Kconfig"
1227
ba7e4763
LG
1228source "drivers/regulator/Kconfig"
1229
2dc034a8
HJK
1230source "drivers/uio/Kconfig"
1231
1da177e4
LT
1232endmenu
1233
1234source "fs/Kconfig"
1235
1da177e4
LT
1236source "arch/arm/Kconfig.debug"
1237
1238source "security/Kconfig"
1239
1240source "crypto/Kconfig"
1241
1242source "lib/Kconfig"
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