Thumb-2: Add some .align statements to the .S files
[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
e17c6d56 11 select HAVE_AOUT
2064c946 12 select HAVE_IDE
12b824fb 13 select RTC_LIB
75e7153a 14 select SYS_SUPPORTS_APM_EMULATION
42d4b839 15 select HAVE_OPROFILE
5cbad0eb 16 select HAVE_ARCH_KGDB
3f550096 17 select HAVE_KPROBES if (!XIP_KERNEL)
9edddaa2 18 select HAVE_KRETPROBES if (HAVE_KPROBES)
606576ce 19 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
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
0a938b97 37
746140c7
KH
38config GENERIC_TIME
39 bool
746140c7 40
0567a0c0
KH
41config GENERIC_CLOCKEVENTS
42 bool
0567a0c0 43
a8655e83
CM
44config GENERIC_CLOCKEVENTS_BROADCAST
45 bool
46 depends on GENERIC_CLOCKEVENTS
47 default y if SMP && !LOCAL_TIMERS
48
1da177e4
LT
49config MMU
50 bool
51 default y
52
5ea81769
AV
53config NO_IOPORT
54 bool
5ea81769 55
1da177e4
LT
56config EISA
57 bool
58 ---help---
59 The Extended Industry Standard Architecture (EISA) bus was
60 developed as an open alternative to the IBM MicroChannel bus.
61
62 The EISA bus provided some of the features of the IBM MicroChannel
63 bus while maintaining backward compatibility with cards made for
64 the older ISA bus. The EISA bus saw limited use between 1988 and
65 1995 when it was made obsolete by the PCI bus.
66
67 Say Y here if you are building a kernel for an EISA-based machine.
68
69 Otherwise, say N.
70
71config SBUS
72 bool
73
74config MCA
75 bool
76 help
77 MicroChannel Architecture is found in some IBM PS/2 machines and
78 laptops. It is a bus system similar to PCI or ISA. See
79 <file:Documentation/mca.txt> (and especially the web page given
80 there) before attempting to build an MCA bus kernel.
81
4a2581a0
TG
82config GENERIC_HARDIRQS
83 bool
84 default y
85
f16fb1ec
RK
86config STACKTRACE_SUPPORT
87 bool
88 default y
89
f76e9154
NP
90config HAVE_LATENCYTOP_SUPPORT
91 bool
92 depends on !SMP
93 default y
94
f16fb1ec
RK
95config LOCKDEP_SUPPORT
96 bool
97 default y
98
7ad1bcb2
RK
99config TRACE_IRQFLAGS_SUPPORT
100 bool
101 default y
102
4a2581a0
TG
103config HARDIRQS_SW_RESEND
104 bool
105 default y
106
107config GENERIC_IRQ_PROBE
108 bool
109 default y
110
95c354fe
NP
111config GENERIC_LOCKBREAK
112 bool
113 default y
114 depends on SMP && PREEMPT
115
1da177e4
LT
116config RWSEM_GENERIC_SPINLOCK
117 bool
118 default y
119
120config RWSEM_XCHGADD_ALGORITHM
121 bool
122
f0d1b0b3
DH
123config ARCH_HAS_ILOG2_U32
124 bool
f0d1b0b3
DH
125
126config ARCH_HAS_ILOG2_U64
127 bool
f0d1b0b3 128
b89c3b16
AM
129config GENERIC_HWEIGHT
130 bool
131 default y
132
1da177e4
LT
133config GENERIC_CALIBRATE_DELAY
134 bool
135 default y
136
a08b6b79
AV
137config ARCH_MAY_HAVE_PC_FDC
138 bool
139
5ac6da66
CL
140config ZONE_DMA
141 bool
5ac6da66 142
1da177e4
LT
143config GENERIC_ISA_DMA
144 bool
145
1da177e4
LT
146config FIQ
147 bool
148
034d2f5a
AV
149config ARCH_MTD_XIP
150 bool
151
60a752ef 152config GENERIC_HARDIRQS_NO__DO_IRQ
60a752ef
PZ
153 def_bool y
154
c0ffa3a9
MD
155if OPROFILE
156
157config OPROFILE_ARMV6
158 def_bool y
159 depends on CPU_V6 && !SMP
160 select OPROFILE_ARM11_CORE
161
162config OPROFILE_MPCORE
163 def_bool y
164 depends on CPU_V6 && SMP
165 select OPROFILE_ARM11_CORE
166
167config OPROFILE_ARM11_CORE
168 bool
169
d7ac4e28
JP
170config OPROFILE_ARMV7
171 def_bool y
172 depends on CPU_V7 && !SMP
173 bool
174
c0ffa3a9
MD
175endif
176
c760fc19
HC
177config VECTORS_BASE
178 hex
6afd6fae 179 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
c760fc19
HC
180 default DRAM_BASE if REMAP_VECTORS_TO_RAM
181 default 0x00000000
182 help
183 The base address of exception vectors.
184
1da177e4
LT
185source "init/Kconfig"
186
dc52ddc0
MH
187source "kernel/Kconfig.freezer"
188
1da177e4
LT
189menu "System Type"
190
191choice
192 prompt "ARM system type"
6a0e2430 193 default ARCH_VERSATILE
1da177e4 194
4af6fee1
DS
195config ARCH_AAEC2000
196 bool "Agilent AAEC-2000 based"
c750815e 197 select CPU_ARM920T
4af6fee1 198 select ARM_AMBA
9483a578 199 select HAVE_CLK
4af6fee1
DS
200 help
201 This enables support for systems based on the Agilent AAEC-2000
202
203config ARCH_INTEGRATOR
204 bool "ARM Ltd. Integrator family"
205 select ARM_AMBA
9483a578 206 select HAVE_CLK
d72fbdf0 207 select COMMON_CLKDEV
4af6fee1
DS
208 select ICST525
209 help
210 Support for ARM's Integrator platform.
211
212config ARCH_REALVIEW
213 bool "ARM Ltd. RealView family"
214 select ARM_AMBA
9483a578 215 select HAVE_CLK
cf30fb4a 216 select COMMON_CLKDEV
4af6fee1 217 select ICST307
85802afe 218 select GENERIC_TIME
ae30ceac 219 select GENERIC_CLOCKEVENTS
4af6fee1
DS
220 help
221 This enables support for ARM Ltd RealView boards.
222
223config ARCH_VERSATILE
224 bool "ARM Ltd. Versatile family"
225 select ARM_AMBA
226 select ARM_VIC
9483a578 227 select HAVE_CLK
71a06da0 228 select COMMON_CLKDEV
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
f373e8c0 238 select ARCH_REQUIRE_GPIOLIB
93686ae8 239 select HAVE_CLK
4af6fee1 240 help
2b3b3516
AV
241 This enables support for systems based on the Atmel AT91RM9200,
242 AT91SAM9 and AT91CAP9 processors.
4af6fee1 243
1da177e4 244config ARCH_CLPS711X
4af6fee1 245 bool "Cirrus Logic CLPS711x/EP721x-based"
c750815e 246 select CPU_ARM720T
f999b8bd
MM
247 help
248 Support for Cirrus Logic 711x/721x based boards.
1da177e4 249
788c9700
RK
250config ARCH_GEMINI
251 bool "Cortina Systems Gemini"
252 select CPU_FA526
253 select GENERIC_GPIO
254 select ARCH_REQUIRE_GPIOLIB
255 help
256 Support for the Cortina Systems Gemini family SoCs
257
1da177e4
LT
258config ARCH_EBSA110
259 bool "EBSA-110"
c750815e 260 select CPU_SA110
f7e68bbf 261 select ISA
c5eb2a2b 262 select NO_IOPORT
1da177e4
LT
263 help
264 This is an evaluation board for the StrongARM processor available
f6c8965a 265 from Digital. It has limited hardware on-board, including an
1da177e4
LT
266 Ethernet interface, two PCMCIA sockets, two serial ports and a
267 parallel port.
268
e7736d47
LB
269config ARCH_EP93XX
270 bool "EP93xx-based"
c750815e 271 select CPU_ARM920T
e7736d47
LB
272 select ARM_AMBA
273 select ARM_VIC
4e9f9fd5 274 select GENERIC_GPIO
9483a578 275 select HAVE_CLK
ae696fd5 276 select COMMON_CLKDEV
7444a72e 277 select ARCH_REQUIRE_GPIOLIB
eb33575c 278 select ARCH_HAS_HOLES_MEMORYMODEL
e7736d47
LB
279 help
280 This enables support for the Cirrus EP93xx series of CPUs.
281
1da177e4
LT
282config ARCH_FOOTBRIDGE
283 bool "FootBridge"
c750815e 284 select CPU_SA110
1da177e4 285 select FOOTBRIDGE
f999b8bd
MM
286 help
287 Support for systems based on the DC21285 companion chip
288 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 289
788c9700
RK
290config ARCH_MXC
291 bool "Freescale MXC/iMX-based"
292 select GENERIC_TIME
293 select GENERIC_CLOCKEVENTS
294 select ARCH_MTD_XIP
295 select GENERIC_GPIO
296 select ARCH_REQUIRE_GPIOLIB
a2ab67fa 297 select HAVE_CLK
788c9700
RK
298 help
299 Support for Freescale MXC/iMX-based family of processors
300
7bd0f2f5 301config ARCH_STMP3XXX
302 bool "Freescale STMP3xxx"
303 select CPU_ARM926T
304 select HAVE_CLK
305 select COMMON_CLKDEV
306 select ARCH_REQUIRE_GPIOLIB
307 select GENERIC_TIME
308 select GENERIC_CLOCKEVENTS
309 select GENERIC_GPIO
310 select USB_ARCH_HAS_EHCI
311 help
312 Support for systems based on the Freescale 3xxx CPUs.
313
4af6fee1
DS
314config ARCH_NETX
315 bool "Hilscher NetX based"
c750815e 316 select CPU_ARM926T
4af6fee1 317 select ARM_VIC
2fcfe6b8 318 select GENERIC_CLOCKEVENTS
21edecd3 319 select GENERIC_TIME
f999b8bd 320 help
4af6fee1
DS
321 This enables support for systems based on the Hilscher NetX Soc
322
323config ARCH_H720X
324 bool "Hynix HMS720x-based"
c750815e 325 select CPU_ARM720T
4af6fee1
DS
326 select ISA_DMA_API
327 help
328 This enables support for systems based on the Hynix HMS720x
329
3b938be6
RK
330config ARCH_IOP13XX
331 bool "IOP13xx-based"
332 depends on MMU
c750815e 333 select CPU_XSC3
3b938be6
RK
334 select PLAT_IOP
335 select PCI
336 select ARCH_SUPPORTS_MSI
8d5796d2 337 select VMSPLIT_1G
3b938be6
RK
338 help
339 Support for Intel's IOP13XX (XScale) family of processors.
340
3f7e5815
LB
341config ARCH_IOP32X
342 bool "IOP32x-based"
a4f7e763 343 depends on MMU
c750815e 344 select CPU_XSCALE
7ae1f7ec 345 select PLAT_IOP
f7e68bbf 346 select PCI
63f385cd 347 select GENERIC_GPIO
bb2b180c 348 select ARCH_REQUIRE_GPIOLIB
f999b8bd 349 help
3f7e5815
LB
350 Support for Intel's 80219 and IOP32X (XScale) family of
351 processors.
352
353config ARCH_IOP33X
354 bool "IOP33x-based"
355 depends on MMU
c750815e 356 select CPU_XSCALE
7ae1f7ec 357 select PLAT_IOP
3f7e5815 358 select PCI
63f385cd 359 select GENERIC_GPIO
bb2b180c 360 select ARCH_REQUIRE_GPIOLIB
3f7e5815
LB
361 help
362 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 363
3b938be6
RK
364config ARCH_IXP23XX
365 bool "IXP23XX-based"
a4f7e763 366 depends on MMU
c750815e 367 select CPU_XSC3
3b938be6 368 select PCI
f999b8bd 369 help
3b938be6 370 Support for Intel's IXP23xx (XScale) family of processors.
1da177e4
LT
371
372config ARCH_IXP2000
373 bool "IXP2400/2800-based"
a4f7e763 374 depends on MMU
c750815e 375 select CPU_XSCALE
f7e68bbf 376 select PCI
f999b8bd
MM
377 help
378 Support for Intel's IXP2400/2800 (XScale) family of processors.
1da177e4 379
3b938be6
RK
380config ARCH_IXP4XX
381 bool "IXP4xx-based"
a4f7e763 382 depends on MMU
c750815e 383 select CPU_XSCALE
8858e9af 384 select GENERIC_GPIO
3b938be6
RK
385 select GENERIC_TIME
386 select GENERIC_CLOCKEVENTS
485bdde7 387 select DMABOUNCE if PCI
c4713074 388 help
3b938be6 389 Support for Intel's IXP4XX (XScale) family of processors.
c4713074 390
1da177e4
LT
391config ARCH_L7200
392 bool "LinkUp-L7200"
c750815e 393 select CPU_ARM720T
1da177e4
LT
394 select FIQ
395 help
396 Say Y here if you intend to run this kernel on a LinkUp Systems
397 L7200 Software Development Board which uses an ARM720T processor.
398 Information on this board can be obtained at:
399
400 <http://www.linkupsys.com/>
401
402 If you have any questions or comments about the Linux kernel port
403 to this board, send e-mail to <sjhill@cotw.com>.
404
651c74c7
SB
405config ARCH_KIRKWOOD
406 bool "Marvell Kirkwood"
c750815e 407 select CPU_FEROCEON
651c74c7 408 select PCI
4c213430 409 select GENERIC_GPIO
a8865655 410 select ARCH_REQUIRE_GPIOLIB
651c74c7
SB
411 select GENERIC_TIME
412 select GENERIC_CLOCKEVENTS
413 select PLAT_ORION
414 help
415 Support for the following Marvell Kirkwood series SoCs:
416 88F6180, 88F6192 and 88F6281.
417
777f9beb
LB
418config ARCH_LOKI
419 bool "Marvell Loki (88RC8480)"
c750815e 420 select CPU_FEROCEON
777f9beb
LB
421 select GENERIC_TIME
422 select GENERIC_CLOCKEVENTS
423 select PLAT_ORION
424 help
425 Support for the Marvell Loki (88RC8480) SoC.
426
794d15b2
SS
427config ARCH_MV78XX0
428 bool "Marvell MV78xx0"
c750815e 429 select CPU_FEROCEON
794d15b2 430 select PCI
b95a13d7 431 select GENERIC_GPIO
a8865655 432 select ARCH_REQUIRE_GPIOLIB
794d15b2
SS
433 select GENERIC_TIME
434 select GENERIC_CLOCKEVENTS
435 select PLAT_ORION
436 help
437 Support for the following Marvell MV78xx0 series SoCs:
438 MV781x0, MV782x0.
439
9dd0b194 440config ARCH_ORION5X
585cf175
TP
441 bool "Marvell Orion"
442 depends on MMU
c750815e 443 select CPU_FEROCEON
038ee083 444 select PCI
01af72e4 445 select GENERIC_GPIO
a8865655 446 select ARCH_REQUIRE_GPIOLIB
51cbff1d
TP
447 select GENERIC_TIME
448 select GENERIC_CLOCKEVENTS
69b02f6a 449 select PLAT_ORION
585cf175 450 help
9dd0b194 451 Support for the following Marvell Orion 5x series SoCs:
d2b2a6bb 452 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
d323ade1 453 Orion-2 (5281), Orion-1-90 (6183).
585cf175 454
788c9700
RK
455config ARCH_MMP
456 bool "Marvell PXA168/910"
457 depends on MMU
458 select GENERIC_GPIO
459 select ARCH_REQUIRE_GPIOLIB
460 select HAVE_CLK
461 select COMMON_CLKDEV
462 select GENERIC_TIME
463 select GENERIC_CLOCKEVENTS
464 select TICK_ONESHOT
465 select PLAT_PXA
466 help
467 Support for Marvell's PXA168/910 processor line.
468
469config ARCH_KS8695
470 bool "Micrel/Kendin KS8695"
471 select CPU_ARM922T
472 select GENERIC_GPIO
473 select ARCH_REQUIRE_GPIOLIB
474 help
475 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
476 System-on-Chip devices.
477
478config ARCH_NS9XXX
479 bool "NetSilicon NS9xxx"
480 select CPU_ARM926T
481 select GENERIC_GPIO
482 select GENERIC_TIME
483 select GENERIC_CLOCKEVENTS
484 select HAVE_CLK
485 help
486 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
487 System.
488
489 <http://www.digi.com/products/microprocessors/index.jsp>
490
491config ARCH_W90X900
492 bool "Nuvoton W90X900 CPU"
493 select CPU_ARM926T
c52d3d68 494 select ARCH_REQUIRE_GPIOLIB
495 select GENERIC_GPIO
0e4a34bb 496 select COMMON_CLKDEV
788c9700
RK
497 help
498 Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
499 can login www.mcuos.com or www.nuvoton.com to know more.
500
4af6fee1
DS
501config ARCH_PNX4008
502 bool "Philips Nexperia PNX4008 Mobile"
c750815e 503 select CPU_ARM926T
9483a578 504 select HAVE_CLK
4af6fee1
DS
505 help
506 This enables support for Philips PNX4008 mobile platform.
507
1da177e4 508config ARCH_PXA
2c8086a5 509 bool "PXA2xx/PXA3xx-based"
a4f7e763 510 depends on MMU
034d2f5a 511 select ARCH_MTD_XIP
0a938b97 512 select GENERIC_GPIO
9483a578 513 select HAVE_CLK
8c3abc7d 514 select COMMON_CLKDEV
7444a72e 515 select ARCH_REQUIRE_GPIOLIB
45cf5eef 516 select GENERIC_TIME
981d0f39 517 select GENERIC_CLOCKEVENTS
a88264c2 518 select TICK_ONESHOT
bd5ce433 519 select PLAT_PXA
f999b8bd 520 help
2c8086a5 521 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
1da177e4 522
788c9700
RK
523config ARCH_MSM
524 bool "Qualcomm MSM"
525 select CPU_V6
49cbe786
EM
526 select GENERIC_TIME
527 select GENERIC_CLOCKEVENTS
49cbe786 528 help
788c9700
RK
529 Support for Qualcomm MSM7K based systems. This runs on the ARM11
530 apps processor of the MSM7K and depends on a shared memory
531 interface to the ARM9 modem processor which runs the baseband stack
532 and controls some vital subsystems (clock and power control, etc).
49cbe786 533
1da177e4
LT
534config ARCH_RPC
535 bool "RiscPC"
536 select ARCH_ACORN
537 select FIQ
538 select TIMER_ACORN
a08b6b79 539 select ARCH_MAY_HAVE_PC_FDC
341eb781 540 select HAVE_PATA_PLATFORM
065909b9 541 select ISA_DMA_API
5ea81769 542 select NO_IOPORT
07f841b7 543 select ARCH_SPARSEMEM_ENABLE
1da177e4
LT
544 help
545 On the Acorn Risc-PC, Linux can support the internal IDE disk and
546 CD-ROM interface, serial and parallel port, and the floppy drive.
547
548config ARCH_SA1100
549 bool "SA1100-based"
c750815e 550 select CPU_SA1100
f7e68bbf 551 select ISA
05944d74 552 select ARCH_SPARSEMEM_ENABLE
034d2f5a 553 select ARCH_MTD_XIP
0a938b97 554 select GENERIC_GPIO
d142b6e7 555 select GENERIC_TIME
3e238be2 556 select GENERIC_CLOCKEVENTS
9483a578 557 select HAVE_CLK
3e238be2 558 select TICK_ONESHOT
7444a72e 559 select ARCH_REQUIRE_GPIOLIB
f999b8bd
MM
560 help
561 Support for StrongARM 11x0 based boards.
1da177e4
LT
562
563config ARCH_S3C2410
e4d06e39 564 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
0a938b97 565 select GENERIC_GPIO
9483a578 566 select HAVE_CLK
1da177e4
LT
567 help
568 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
569 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
f6c8965a 570 the Samsung SMDK2410 development board (and derivatives).
1da177e4 571
a08ab637
BD
572config ARCH_S3C64XX
573 bool "Samsung S3C64XX"
574 select GENERIC_GPIO
575 select HAVE_CLK
576 help
577 Samsung S3C64XX series based systems
578
1da177e4
LT
579config ARCH_SHARK
580 bool "Shark"
c750815e 581 select CPU_SA110
f7e68bbf
RK
582 select ISA
583 select ISA_DMA
3bca103a 584 select ZONE_DMA
f7e68bbf 585 select PCI
f999b8bd
MM
586 help
587 Support for the StrongARM based Digital DNARD machine, also known
588 as "Shark" (<http://www.shark-linux.de/shark.html>).
1da177e4
LT
589
590config ARCH_LH7A40X
591 bool "Sharp LH7A40X"
c750815e 592 select CPU_ARM922T
4ba3f7c5
RK
593 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
594 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
1da177e4
LT
595 help
596 Say Y here for systems based on one of the Sharp LH7A40X
597 System on a Chip processors. These CPUs include an ARM922T
598 core with a wide array of integrated devices for
599 hand-held and low-power applications.
600
d98aac75
LW
601config ARCH_U300
602 bool "ST-Ericsson U300 Series"
603 depends on MMU
604 select CPU_ARM926T
605 select ARM_AMBA
606 select ARM_VIC
607 select GENERIC_TIME
608 select GENERIC_CLOCKEVENTS
609 select HAVE_CLK
610 select COMMON_CLKDEV
611 select GENERIC_GPIO
612 help
613 Support for ST-Ericsson U300 series mobile platforms.
614
7c6337e2
KH
615config ARCH_DAVINCI
616 bool "TI DaVinci"
c750815e 617 select CPU_ARM926T
7c6337e2
KH
618 select GENERIC_TIME
619 select GENERIC_CLOCKEVENTS
3d9edf09 620 select GENERIC_GPIO
dce1115b 621 select ARCH_REQUIRE_GPIOLIB
9483a578 622 select HAVE_CLK
3bca103a 623 select ZONE_DMA
9232fcc9 624 select HAVE_IDE
c5b736d0 625 select COMMON_CLKDEV
20e9969b 626 select GENERIC_ALLOCATOR
7c6337e2
KH
627 help
628 Support for TI's DaVinci platform.
629
3b938be6
RK
630config ARCH_OMAP
631 bool "TI OMAP"
632 select GENERIC_GPIO
9483a578 633 select HAVE_CLK
7444a72e 634 select ARCH_REQUIRE_GPIOLIB
3b938be6 635 select GENERIC_TIME
06cad098 636 select GENERIC_CLOCKEVENTS
3b938be6
RK
637 help
638 Support for TI's OMAP platform (OMAP1 and OMAP2).
639
1da177e4
LT
640endchoice
641
642source "arch/arm/mach-clps711x/Kconfig"
643
e7736d47
LB
644source "arch/arm/mach-ep93xx/Kconfig"
645
1da177e4
LT
646source "arch/arm/mach-footbridge/Kconfig"
647
59d3a193
PZ
648source "arch/arm/mach-gemini/Kconfig"
649
1da177e4
LT
650source "arch/arm/mach-integrator/Kconfig"
651
3f7e5815
LB
652source "arch/arm/mach-iop32x/Kconfig"
653
654source "arch/arm/mach-iop33x/Kconfig"
1da177e4 655
285f5fa7
DW
656source "arch/arm/mach-iop13xx/Kconfig"
657
1da177e4
LT
658source "arch/arm/mach-ixp4xx/Kconfig"
659
660source "arch/arm/mach-ixp2000/Kconfig"
661
c4713074
LB
662source "arch/arm/mach-ixp23xx/Kconfig"
663
777f9beb
LB
664source "arch/arm/mach-loki/Kconfig"
665
794d15b2
SS
666source "arch/arm/mach-mv78xx0/Kconfig"
667
1da177e4 668source "arch/arm/mach-pxa/Kconfig"
bd5ce433 669source "arch/arm/plat-pxa/Kconfig"
1da177e4 670
49cbe786
EM
671source "arch/arm/mach-mmp/Kconfig"
672
1da177e4
LT
673source "arch/arm/mach-sa1100/Kconfig"
674
d48af15e
TL
675source "arch/arm/plat-omap/Kconfig"
676
677source "arch/arm/mach-omap1/Kconfig"
1da177e4 678
1dbae815
TL
679source "arch/arm/mach-omap2/Kconfig"
680
9dd0b194 681source "arch/arm/mach-orion5x/Kconfig"
585cf175 682
651c74c7 683source "arch/arm/mach-kirkwood/Kconfig"
585cf175 684
a21765a7 685source "arch/arm/plat-s3c24xx/Kconfig"
a08ab637 686source "arch/arm/plat-s3c64xx/Kconfig"
d58153d8 687source "arch/arm/plat-s3c/Kconfig"
a21765a7
BD
688
689if ARCH_S3C2410
690source "arch/arm/mach-s3c2400/Kconfig"
1da177e4 691source "arch/arm/mach-s3c2410/Kconfig"
a21765a7
BD
692source "arch/arm/mach-s3c2412/Kconfig"
693source "arch/arm/mach-s3c2440/Kconfig"
694source "arch/arm/mach-s3c2442/Kconfig"
e4d06e39 695source "arch/arm/mach-s3c2443/Kconfig"
a21765a7 696endif
1da177e4 697
a08ab637
BD
698if ARCH_S3C64XX
699source "arch/arm/mach-s3c6400/Kconfig"
700source "arch/arm/mach-s3c6410/Kconfig"
701endif
702
7bd0f2f5 703source "arch/arm/plat-stmp3xxx/Kconfig"
704
1da177e4
LT
705source "arch/arm/mach-lh7a40x/Kconfig"
706
1da177e4
LT
707source "arch/arm/mach-h720x/Kconfig"
708
709source "arch/arm/mach-versatile/Kconfig"
710
038c5b60
BN
711source "arch/arm/mach-aaec2000/Kconfig"
712
8ad68bbf
CM
713source "arch/arm/mach-realview/Kconfig"
714
9d041268 715source "arch/arm/mach-at91/Kconfig"
73a59c1c 716
52c543f9
QJ
717source "arch/arm/plat-mxc/Kconfig"
718
bb6d8c88
SH
719source "arch/arm/mach-netx/Kconfig"
720
9918cda5
UKK
721source "arch/arm/mach-ns9xxx/Kconfig"
722
7c6337e2
KH
723source "arch/arm/mach-davinci/Kconfig"
724
c53c9cf6
AV
725source "arch/arm/mach-ks8695/Kconfig"
726
9e73c84c
BS
727source "arch/arm/mach-msm/Kconfig"
728
d98aac75
LW
729source "arch/arm/mach-u300/Kconfig"
730
7ec80ddf 731source "arch/arm/mach-w90x900/Kconfig"
732
1da177e4
LT
733# Definitions to make life easier
734config ARCH_ACORN
735 bool
736
7ae1f7ec
LB
737config PLAT_IOP
738 bool
739
69b02f6a
LB
740config PLAT_ORION
741 bool
742
bd5ce433
EM
743config PLAT_PXA
744 bool
745
1da177e4
LT
746source arch/arm/mm/Kconfig
747
afe4b25e
LB
748config IWMMXT
749 bool "Enable iWMMXt support"
40305a58
EM
750 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
751 default y if PXA27x || PXA3xx || ARCH_MMP
afe4b25e
LB
752 help
753 Enable support for iWMMXt context switching at run time if
754 running on a CPU that supports it.
755
1da177e4
LT
756# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
757config XSCALE_PMU
758 bool
759 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
760 default y
761
3b93e7b0
HC
762if !MMU
763source "arch/arm/Kconfig-nommu"
764endif
765
9cba3ccc
CM
766config ARM_ERRATA_411920
767 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
768 depends on CPU_V6 && !SMP
769 help
770 Invalidation of the Instruction Cache operation can
771 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
772 It does not affect the MPCore. This option enables the ARM Ltd.
773 recommended workaround.
774
7ce236fc
CM
775config ARM_ERRATA_430973
776 bool "ARM errata: Stale prediction on replaced interworking branch"
777 depends on CPU_V7
778 help
779 This option enables the workaround for the 430973 Cortex-A8
780 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
781 interworking branch is replaced with another code sequence at the
782 same virtual address, whether due to self-modifying code or virtual
783 to physical address re-mapping, Cortex-A8 does not recover from the
784 stale interworking branch prediction. This results in Cortex-A8
785 executing the new code sequence in the incorrect ARM or Thumb state.
786 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
787 and also flushes the branch target cache at every context switch.
788 Note that setting specific bits in the ACTLR register may not be
789 available in non-secure mode.
790
855c551f
CM
791config ARM_ERRATA_458693
792 bool "ARM errata: Processor deadlock when a false hazard is created"
793 depends on CPU_V7
794 help
795 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
796 erratum. For very specific sequences of memory operations, it is
797 possible for a hazard condition intended for a cache line to instead
798 be incorrectly associated with a different cache line. This false
799 hazard might then cause a processor deadlock. The workaround enables
800 the L1 caching of the NEON accesses and disables the PLD instruction
801 in the ACTLR register. Note that setting specific bits in the ACTLR
802 register may not be available in non-secure mode.
803
0516e464
CM
804config ARM_ERRATA_460075
805 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
806 depends on CPU_V7
807 help
808 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
809 erratum. Any asynchronous access to the L2 cache may encounter a
810 situation in which recent store transactions to the L2 cache are lost
811 and overwritten with stale memory contents from external memory. The
812 workaround disables the write-allocate mode for the L2 cache via the
813 ACTLR register. Note that setting specific bits in the ACTLR register
814 may not be available in non-secure mode.
815
1da177e4
LT
816endmenu
817
818source "arch/arm/common/Kconfig"
819
820config FORCE_MAX_ZONEORDER
821 int
822 depends on SA1111
823 default "9"
824
825menu "Bus support"
826
827config ARM_AMBA
828 bool
829
830config ISA
831 bool
1da177e4
LT
832 help
833 Find out whether you have ISA slots on your motherboard. ISA is the
834 name of a bus system, i.e. the way the CPU talks to the other stuff
835 inside your box. Other bus systems are PCI, EISA, MicroChannel
836 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
837 newer boards don't support it. If you have ISA, say Y, otherwise N.
838
065909b9 839# Select ISA DMA controller support
1da177e4
LT
840config ISA_DMA
841 bool
065909b9 842 select ISA_DMA_API
1da177e4 843
065909b9 844# Select ISA DMA interface
5cae841b
AV
845config ISA_DMA_API
846 bool
5cae841b 847
1da177e4 848config PCI
a0113a99 849 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
1da177e4
LT
850 help
851 Find out whether you have a PCI motherboard. PCI is the name of a
852 bus system, i.e. the way the CPU talks to the other stuff inside
853 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
854 VESA. If you have PCI, say Y, otherwise N.
855
36e23590
MW
856config PCI_SYSCALL
857 def_bool PCI
858
1da177e4
LT
859# Select the host bridge type
860config PCI_HOST_VIA82C505
861 bool
862 depends on PCI && ARCH_SHARK
863 default y
864
a0113a99
MR
865config PCI_HOST_ITE8152
866 bool
867 depends on PCI && MACH_ARMCORE
868 default y
869 select DMABOUNCE
870
1da177e4
LT
871source "drivers/pci/Kconfig"
872
873source "drivers/pcmcia/Kconfig"
874
875endmenu
876
877menu "Kernel Features"
878
0567a0c0
KH
879source "kernel/time/Kconfig"
880
1da177e4
LT
881config SMP
882 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
42578c82
RK
883 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
884 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
bc28248e 885 depends on GENERIC_CLOCKEVENTS
f6dd9fa5 886 select USE_GENERIC_SMP_HELPERS
934f8be7 887 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4)
1da177e4
LT
888 help
889 This enables support for systems with more than one CPU. If you have
890 a system with only one CPU, like most personal computers, say N. If
891 you have a system with more than one CPU, say Y.
892
893 If you say N here, the kernel will run on single and multiprocessor
894 machines, but will use only one CPU of a multiprocessor machine. If
895 you say Y here, the kernel will run on many, but not all, single
896 processor machines. On a single processor machine, the kernel will
897 run faster if you say N here.
898
03502faa 899 See also <file:Documentation/i386/IO-APIC.txt>,
1da177e4
LT
900 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
901 <http://www.linuxdoc.org/docs.html#howto>.
902
903 If you don't know what to do here, say N.
904
a8cbcd92
RK
905config HAVE_ARM_SCU
906 bool
907 depends on SMP
908 help
909 This option enables support for the ARM system coherency unit
910
f32f4ce2
RK
911config HAVE_ARM_TWD
912 bool
913 depends on SMP
914 help
915 This options enables support for the ARM timer and watchdog unit
916
8d5796d2
LB
917choice
918 prompt "Memory split"
919 default VMSPLIT_3G
920 help
921 Select the desired split between kernel and user memory.
922
923 If you are not absolutely sure what you are doing, leave this
924 option alone!
925
926 config VMSPLIT_3G
927 bool "3G/1G user/kernel split"
928 config VMSPLIT_2G
929 bool "2G/2G user/kernel split"
930 config VMSPLIT_1G
931 bool "1G/3G user/kernel split"
932endchoice
933
934config PAGE_OFFSET
935 hex
936 default 0x40000000 if VMSPLIT_1G
937 default 0x80000000 if VMSPLIT_2G
938 default 0xC0000000
939
1da177e4
LT
940config NR_CPUS
941 int "Maximum number of CPUs (2-32)"
942 range 2 32
943 depends on SMP
944 default "4"
945
a054a811
RK
946config HOTPLUG_CPU
947 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
948 depends on SMP && HOTPLUG && EXPERIMENTAL
949 help
950 Say Y here to experiment with turning CPUs off and on. CPUs
951 can be controlled through /sys/devices/system/cpu.
952
37ee16ae
RK
953config LOCAL_TIMERS
954 bool "Use local timer interrupts"
42578c82
RK
955 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
956 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
37ee16ae 957 default y
934f8be7 958 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4)
37ee16ae
RK
959 help
960 Enable support for local timers on SMP platforms, rather then the
961 legacy IPI broadcast method. Local timers allows the system
962 accounting to be spread across the timer interval, preventing a
963 "thundering herd" at every timer tick.
964
1da177e4
LT
965config PREEMPT
966 bool "Preemptible Kernel (EXPERIMENTAL)"
967 depends on EXPERIMENTAL
968 help
969 This option reduces the latency of the kernel when reacting to
970 real-time or interactive events by allowing a low priority process to
971 be preempted even if it is in kernel mode executing a system call.
972 This allows applications to run more reliably even when the system is
973 under load.
974
975 Say Y here if you are building a kernel for a desktop, embedded
976 or real-time system. Say N if you are unsure.
977
f8065813
RK
978config HZ
979 int
980 default 128 if ARCH_L7200
981 default 200 if ARCH_EBSA110 || ARCH_S3C2410
bfe65704 982 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
5248c657 983 default AT91_TIMER_HZ if ARCH_AT91
f8065813
RK
984 default 100
985
704bdda0
NP
986config AEABI
987 bool "Use the ARM EABI to compile the kernel"
988 help
989 This option allows for the kernel to be compiled using the latest
990 ARM ABI (aka EABI). This is only useful if you are using a user
991 space environment that is also compiled with EABI.
992
993 Since there are major incompatibilities between the legacy ABI and
994 EABI, especially with regard to structure member alignment, this
995 option also changes the kernel syscall calling convention to
996 disambiguate both ABIs and allow for backward compatibility support
997 (selected with CONFIG_OABI_COMPAT).
998
999 To use this you need GCC version 4.0.0 or later.
1000
6c90c872 1001config OABI_COMPAT
a73a3ff1 1002 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
61c484d4 1003 depends on AEABI && EXPERIMENTAL
6c90c872
NP
1004 default y
1005 help
1006 This option preserves the old syscall interface along with the
1007 new (ARM EABI) one. It also provides a compatibility layer to
1008 intercept syscalls that have structure arguments which layout
1009 in memory differs between the legacy ABI and the new ARM EABI
1010 (only for non "thumb" binaries). This option adds a tiny
1011 overhead to all syscalls and produces a slightly larger kernel.
1012 If you know you'll be using only pure EABI user space then you
1013 can say N here. If this option is not selected and you attempt
1014 to execute a legacy ABI binary then the result will be
1015 UNPREDICTABLE (in fact it can be predicted that it won't work
1016 at all). If in doubt say Y.
1017
eb33575c 1018config ARCH_HAS_HOLES_MEMORYMODEL
e80d6a24 1019 bool
e80d6a24 1020
07a2f737 1021# Discontigmem is deprecated
3f22ab27 1022config ARCH_DISCONTIGMEM_ENABLE
1da177e4 1023 bool
1da177e4 1024
05944d74
RK
1025config ARCH_SPARSEMEM_ENABLE
1026 bool
1027
07a2f737
RK
1028config ARCH_SPARSEMEM_DEFAULT
1029 def_bool ARCH_SPARSEMEM_ENABLE
1030
05944d74 1031config ARCH_SELECT_MEMORY_MODEL
07a2f737 1032 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
05944d74 1033
c80d79d7
YG
1034config NODES_SHIFT
1035 int
1036 default "4" if ARCH_LH7A40X
1037 default "2"
1038 depends on NEED_MULTIPLE_NODES
1039
053a96ca
NP
1040config HIGHMEM
1041 bool "High Memory Support (EXPERIMENTAL)"
1042 depends on MMU && EXPERIMENTAL
1043 help
1044 The address space of ARM processors is only 4 Gigabytes large
1045 and it has to accommodate user address space, kernel address
1046 space as well as some memory mapped IO. That means that, if you
1047 have a large amount of physical memory and/or IO, not all of the
1048 memory can be "permanently mapped" by the kernel. The physical
1049 memory that is not permanently mapped is called "high memory".
1050
1051 Depending on the selected kernel/user memory split, minimum
1052 vmalloc space and actual amount of RAM, you may not need this
1053 option which should result in a slightly faster kernel.
1054
1055 If unsure, say n.
1056
3f22ab27
DH
1057source "mm/Kconfig"
1058
1da177e4
LT
1059config LEDS
1060 bool "Timer and CPU usage LEDs"
e055d5bf 1061 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
8c8fdbc9 1062 ARCH_EBSA285 || ARCH_INTEGRATOR || \
1da177e4
LT
1063 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1064 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
73a59c1c 1065 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
25329671 1066 ARCH_AT91 || ARCH_DAVINCI || \
ff3042fb 1067 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
1da177e4
LT
1068 help
1069 If you say Y here, the LEDs on your machine will be used
1070 to provide useful information about your current system status.
1071
1072 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1073 be able to select which LEDs are active using the options below. If
1074 you are compiling a kernel for the EBSA-110 or the LART however, the
1075 red LED will simply flash regularly to indicate that the system is
1076 still functional. It is safe to say Y here if you have a CATS
1077 system, but the driver will do nothing.
1078
1079config LEDS_TIMER
1080 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
eebdf7d7
DB
1081 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1082 || MACH_OMAP_PERSEUS2
1da177e4 1083 depends on LEDS
0567a0c0 1084 depends on !GENERIC_CLOCKEVENTS
1da177e4
LT
1085 default y if ARCH_EBSA110
1086 help
1087 If you say Y here, one of the system LEDs (the green one on the
1088 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1089 will flash regularly to indicate that the system is still
1090 operational. This is mainly useful to kernel hackers who are
1091 debugging unstable kernels.
1092
1093 The LART uses the same LED for both Timer LED and CPU usage LED
1094 functions. You may choose to use both, but the Timer LED function
1095 will overrule the CPU usage LED.
1096
1097config LEDS_CPU
1098 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
eebdf7d7
DB
1099 !ARCH_OMAP) \
1100 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1101 || MACH_OMAP_PERSEUS2
1da177e4
LT
1102 depends on LEDS
1103 help
1104 If you say Y here, the red LED will be used to give a good real
1105 time indication of CPU usage, by lighting whenever the idle task
1106 is not currently executing.
1107
1108 The LART uses the same LED for both Timer LED and CPU usage LED
1109 functions. You may choose to use both, but the Timer LED function
1110 will overrule the CPU usage LED.
1111
1112config ALIGNMENT_TRAP
1113 bool
f12d0d7c 1114 depends on CPU_CP15_MMU
1da177e4
LT
1115 default y if !ARCH_EBSA110
1116 help
84eb8d06 1117 ARM processors cannot fetch/store information which is not
1da177e4
LT
1118 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1119 address divisible by 4. On 32-bit ARM processors, these non-aligned
1120 fetch/store instructions will be emulated in software if you say
1121 here, which has a severe performance impact. This is necessary for
1122 correct operation of some network protocols. With an IP-only
1123 configuration it is safe to say N, otherwise say Y.
1124
39ec58f3
LB
1125config UACCESS_WITH_MEMCPY
1126 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1127 depends on MMU && EXPERIMENTAL
1128 default y if CPU_FEROCEON
1129 help
1130 Implement faster copy_to_user and clear_user methods for CPU
1131 cores where a 8-word STM instruction give significantly higher
1132 memory write throughput than a sequence of individual 32bit stores.
1133
1134 A possible side effect is a slight increase in scheduling latency
1135 between threads sharing the same address space if they invoke
1136 such copy operations with large buffers.
1137
1138 However, if the CPU data cache is using a write-allocate mode,
1139 this option is unlikely to provide any performance gain.
1140
1da177e4
LT
1141endmenu
1142
1143menu "Boot options"
1144
1145# Compressed boot loader in ROM. Yes, we really want to ask about
1146# TEXT and BSS so we preserve their values in the config files.
1147config ZBOOT_ROM_TEXT
1148 hex "Compressed ROM boot loader base address"
1149 default "0"
1150 help
1151 The physical address at which the ROM-able zImage is to be
1152 placed in the target. Platforms which normally make use of
1153 ROM-able zImage formats normally set this to a suitable
1154 value in their defconfig file.
1155
1156 If ZBOOT_ROM is not enabled, this has no effect.
1157
1158config ZBOOT_ROM_BSS
1159 hex "Compressed ROM boot loader BSS address"
1160 default "0"
1161 help
f8c440b2
DF
1162 The base address of an area of read/write memory in the target
1163 for the ROM-able zImage which must be available while the
1164 decompressor is running. It must be large enough to hold the
1165 entire decompressed kernel plus an additional 128 KiB.
1166 Platforms which normally make use of ROM-able zImage formats
1167 normally set this to a suitable value in their defconfig file.
1da177e4
LT
1168
1169 If ZBOOT_ROM is not enabled, this has no effect.
1170
1171config ZBOOT_ROM
1172 bool "Compressed boot loader in ROM/flash"
1173 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1174 help
1175 Say Y here if you intend to execute your compressed kernel image
1176 (zImage) directly from ROM or flash. If unsure, say N.
1177
1178config CMDLINE
1179 string "Default kernel command string"
1180 default ""
1181 help
1182 On some architectures (EBSA110 and CATS), there is currently no way
1183 for the boot loader to pass arguments to the kernel. For these
1184 architectures, you should supply some command-line options at build
1185 time by entering them here. As a minimum, you should specify the
1186 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1187
1188config XIP_KERNEL
1189 bool "Kernel Execute-In-Place from ROM"
1190 depends on !ZBOOT_ROM
1191 help
1192 Execute-In-Place allows the kernel to run from non-volatile storage
1193 directly addressable by the CPU, such as NOR flash. This saves RAM
1194 space since the text section of the kernel is not loaded from flash
1195 to RAM. Read-write sections, such as the data section and stack,
1196 are still copied to RAM. The XIP kernel is not compressed since
1197 it has to run directly from flash, so it will take more space to
1198 store it. The flash address used to link the kernel object files,
1199 and for storing it, is configuration dependent. Therefore, if you
1200 say Y here, you must know the proper physical address where to
1201 store the kernel image depending on your own flash memory usage.
1202
1203 Also note that the make target becomes "make xipImage" rather than
1204 "make zImage" or "make Image". The final kernel binary to put in
1205 ROM memory will be arch/arm/boot/xipImage.
1206
1207 If unsure, say N.
1208
1209config XIP_PHYS_ADDR
1210 hex "XIP Kernel Physical Location"
1211 depends on XIP_KERNEL
1212 default "0x00080000"
1213 help
1214 This is the physical address in your flash memory the kernel will
1215 be linked for and stored to. This address is dependent on your
1216 own flash usage.
1217
c587e4a6
RP
1218config KEXEC
1219 bool "Kexec system call (EXPERIMENTAL)"
1220 depends on EXPERIMENTAL
1221 help
1222 kexec is a system call that implements the ability to shutdown your
1223 current kernel, and to start another kernel. It is like a reboot
01dd2fbf 1224 but it is independent of the system firmware. And like a reboot
c587e4a6
RP
1225 you can start any kernel with it, not just Linux.
1226
1227 It is an ongoing process to be certain the hardware in a machine
1228 is properly shutdown, so do not be surprised if this code does not
1229 initially work for you. It may help to enable device hotplugging
1230 support.
1231
4cd9d6f7
RP
1232config ATAGS_PROC
1233 bool "Export atags in procfs"
b98d7291
UL
1234 depends on KEXEC
1235 default y
4cd9d6f7
RP
1236 help
1237 Should the atags used to boot the kernel be exported in an "atags"
1238 file in procfs. Useful with kexec.
1239
1da177e4
LT
1240endmenu
1241
ac9d7efc 1242menu "CPU Power Management"
1da177e4 1243
b3748ddd 1244if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_PXA || ARCH_S3C64XX)
1da177e4
LT
1245
1246source "drivers/cpufreq/Kconfig"
1247
1248config CPU_FREQ_SA1100
1249 bool
7bc35b56 1250 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
1da177e4
LT
1251 default y
1252
1253config CPU_FREQ_SA1110
1254 bool
1255 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1256 default y
1257
1258config CPU_FREQ_INTEGRATOR
1259 tristate "CPUfreq driver for ARM Integrator CPUs"
1260 depends on ARCH_INTEGRATOR && CPU_FREQ
1261 default y
1262 help
1263 This enables the CPUfreq driver for ARM Integrator CPUs.
1264
1265 For details, take a look at <file:Documentation/cpu-freq>.
1266
1267 If in doubt, say Y.
1268
9e2697ff
RK
1269config CPU_FREQ_PXA
1270 bool
1271 depends on CPU_FREQ && ARCH_PXA && PXA25x
1272 default y
1273 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1274
b3748ddd
MB
1275config CPU_FREQ_S3C64XX
1276 bool "CPUfreq support for Samsung S3C64XX CPUs"
1277 depends on CPU_FREQ && CPU_S3C6410
1278
1da177e4
LT
1279endif
1280
ac9d7efc
RK
1281source "drivers/cpuidle/Kconfig"
1282
1283endmenu
1284
1da177e4
LT
1285menu "Floating point emulation"
1286
1287comment "At least one emulation must be selected"
1288
1289config FPE_NWFPE
1290 bool "NWFPE math emulation"
8993a44c 1291 depends on !AEABI || OABI_COMPAT
1da177e4
LT
1292 ---help---
1293 Say Y to include the NWFPE floating point emulator in the kernel.
1294 This is necessary to run most binaries. Linux does not currently
1295 support floating point hardware so you need to say Y here even if
1296 your machine has an FPA or floating point co-processor podule.
1297
1298 You may say N here if you are going to load the Acorn FPEmulator
1299 early in the bootup.
1300
1301config FPE_NWFPE_XP
1302 bool "Support extended precision"
bedf142b 1303 depends on FPE_NWFPE
1da177e4
LT
1304 help
1305 Say Y to include 80-bit support in the kernel floating-point
1306 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1307 Note that gcc does not generate 80-bit operations by default,
1308 so in most cases this option only enlarges the size of the
1309 floating point emulator without any good reason.
1310
1311 You almost surely want to say N here.
1312
1313config FPE_FASTFPE
1314 bool "FastFPE math emulation (EXPERIMENTAL)"
8993a44c 1315 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1da177e4
LT
1316 ---help---
1317 Say Y here to include the FAST floating point emulator in the kernel.
1318 This is an experimental much faster emulator which now also has full
1319 precision for the mantissa. It does not support any exceptions.
1320 It is very simple, and approximately 3-6 times faster than NWFPE.
1321
1322 It should be sufficient for most programs. It may be not suitable
1323 for scientific calculations, but you have to check this for yourself.
1324 If you do not feel you need a faster FP emulation you should better
1325 choose NWFPE.
1326
1327config VFP
1328 bool "VFP-format floating point maths"
c00d4ffd 1329 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1da177e4
LT
1330 help
1331 Say Y to include VFP support code in the kernel. This is needed
1332 if your hardware includes a VFP unit.
1333
1334 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1335 release notes and additional status information.
1336
1337 Say N if your target does not have VFP hardware.
1338
25ebee02
CM
1339config VFPv3
1340 bool
1341 depends on VFP
1342 default y if CPU_V7
1343
b5872db4
CM
1344config NEON
1345 bool "Advanced SIMD (NEON) Extension support"
1346 depends on VFPv3 && CPU_V7
1347 help
1348 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1349 Extension.
1350
1da177e4
LT
1351endmenu
1352
1353menu "Userspace binary formats"
1354
1355source "fs/Kconfig.binfmt"
1356
1357config ARTHUR
1358 tristate "RISC OS personality"
704bdda0 1359 depends on !AEABI
1da177e4
LT
1360 help
1361 Say Y here to include the kernel code necessary if you want to run
1362 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1363 experimental; if this sounds frightening, say N and sleep in peace.
1364 You can also say M here to compile this support as a module (which
1365 will be called arthur).
1366
1367endmenu
1368
1369menu "Power management options"
1370
eceab4ac 1371source "kernel/power/Kconfig"
1da177e4 1372
f4cb5700
JB
1373config ARCH_SUSPEND_POSSIBLE
1374 def_bool y
1375
1da177e4
LT
1376endmenu
1377
d5950b43
SR
1378source "net/Kconfig"
1379
1da177e4
LT
1380menu "Device Drivers"
1381
1382source "drivers/base/Kconfig"
1383
c35bf4a5
PM
1384source "drivers/connector/Kconfig"
1385
f12d0d7c 1386if ALIGNMENT_TRAP || !CPU_CP15_MMU
1da177e4
LT
1387source "drivers/mtd/Kconfig"
1388endif
1389
1390source "drivers/parport/Kconfig"
1391
1392source "drivers/pnp/Kconfig"
1393
1394source "drivers/block/Kconfig"
1395
58273e55
RK
1396# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1397
1398source "drivers/misc/Kconfig"
1399
1da177e4 1400source "drivers/ide/Kconfig"
1da177e4
LT
1401
1402source "drivers/scsi/Kconfig"
1403
eb370f0b
MM
1404source "drivers/ata/Kconfig"
1405
1da177e4
LT
1406source "drivers/md/Kconfig"
1407
1408source "drivers/message/fusion/Kconfig"
1409
1410source "drivers/ieee1394/Kconfig"
1411
1412source "drivers/message/i2o/Kconfig"
1413
d5950b43 1414source "drivers/net/Kconfig"
1da177e4
LT
1415
1416source "drivers/isdn/Kconfig"
1417
1418# input before char - char/joystick depends on it. As does USB.
1419
1420source "drivers/input/Kconfig"
1421
1422source "drivers/char/Kconfig"
1423
1424source "drivers/i2c/Kconfig"
1425
8ae12a0d
DB
1426source "drivers/spi/Kconfig"
1427
a9c5fff5
DB
1428source "drivers/gpio/Kconfig"
1429
04916c0e
AZ
1430source "drivers/w1/Kconfig"
1431
58273e55
RK
1432source "drivers/power/Kconfig"
1433
ad2f931d
JD
1434source "drivers/hwmon/Kconfig"
1435
ac9d7efc
RK
1436source "drivers/thermal/Kconfig"
1437
70dfa3f8
RK
1438source "drivers/watchdog/Kconfig"
1439
58273e55 1440source "drivers/ssb/Kconfig"
1da177e4 1441
58273e55 1442#source "drivers/l3/Kconfig"
1da177e4 1443
a4e137ab
RK
1444source "drivers/mfd/Kconfig"
1445
1da177e4
LT
1446source "drivers/media/Kconfig"
1447
1448source "drivers/video/Kconfig"
1449
1450source "sound/Kconfig"
1451
c2dade51
SH
1452source "drivers/hid/Kconfig"
1453
1da177e4
LT
1454source "drivers/usb/Kconfig"
1455
2f86c3e6
GKH
1456source "drivers/uwb/Kconfig"
1457
1da177e4
LT
1458source "drivers/mmc/Kconfig"
1459
ac9d7efc
RK
1460source "drivers/memstick/Kconfig"
1461
1462source "drivers/accessibility/Kconfig"
1463
58273e55
RK
1464source "drivers/leds/Kconfig"
1465
12b824fb
AZ
1466source "drivers/rtc/Kconfig"
1467
5816815f
DW
1468source "drivers/dma/Kconfig"
1469
abf07b19
DW
1470source "drivers/dca/Kconfig"
1471
ac9d7efc
RK
1472source "drivers/auxdisplay/Kconfig"
1473
ba7e4763
LG
1474source "drivers/regulator/Kconfig"
1475
2dc034a8
HJK
1476source "drivers/uio/Kconfig"
1477
6e38a2ba
DH
1478source "drivers/staging/Kconfig"
1479
1da177e4
LT
1480endmenu
1481
1482source "fs/Kconfig"
1483
1da177e4
LT
1484source "arch/arm/Kconfig.debug"
1485
1486source "security/Kconfig"
1487
1488source "crypto/Kconfig"
1489
1490source "lib/Kconfig"