ARM: SAMSUNG: Move plat-s3c Kconfig entries to plat-samsung and plat-s3c24xx
[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
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
e7db7b42
AT
21 select HAVE_KERNEL_GZIP
22 select HAVE_KERNEL_LZO
1da177e4
LT
23 help
24 The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a 25 licensed by ARM Ltd and targeted at embedded applications and
1da177e4 26 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a 27 manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4
LT
28 Europe. There is an ARM Linux project with a web page at
29 <http://www.arm.linux.org.uk/>.
30
1a189b97
RK
31config HAVE_PWM
32 bool
33
75e7153a
RB
34config SYS_SUPPORTS_APM_EMULATION
35 bool
36
0a938b97
DB
37config GENERIC_GPIO
38 bool
0a938b97 39
746140c7
KH
40config GENERIC_TIME
41 bool
746140c7 42
0567a0c0
KH
43config GENERIC_CLOCKEVENTS
44 bool
0567a0c0 45
a8655e83
CM
46config GENERIC_CLOCKEVENTS_BROADCAST
47 bool
48 depends on GENERIC_CLOCKEVENTS
49 default y if SMP && !LOCAL_TIMERS
50
bc581770
LW
51config HAVE_TCM
52 bool
53 select GENERIC_ALLOCATOR
54
5ea81769
AV
55config NO_IOPORT
56 bool
5ea81769 57
1da177e4
LT
58config EISA
59 bool
60 ---help---
61 The Extended Industry Standard Architecture (EISA) bus was
62 developed as an open alternative to the IBM MicroChannel bus.
63
64 The EISA bus provided some of the features of the IBM MicroChannel
65 bus while maintaining backward compatibility with cards made for
66 the older ISA bus. The EISA bus saw limited use between 1988 and
67 1995 when it was made obsolete by the PCI bus.
68
69 Say Y here if you are building a kernel for an EISA-based machine.
70
71 Otherwise, say N.
72
73config SBUS
74 bool
75
76config MCA
77 bool
78 help
79 MicroChannel Architecture is found in some IBM PS/2 machines and
80 laptops. It is a bus system similar to PCI or ISA. See
81 <file:Documentation/mca.txt> (and especially the web page given
82 there) before attempting to build an MCA bus kernel.
83
4a2581a0
TG
84config GENERIC_HARDIRQS
85 bool
86 default y
87
f16fb1ec
RK
88config STACKTRACE_SUPPORT
89 bool
90 default y
91
f76e9154
NP
92config HAVE_LATENCYTOP_SUPPORT
93 bool
94 depends on !SMP
95 default y
96
f16fb1ec
RK
97config LOCKDEP_SUPPORT
98 bool
99 default y
100
7ad1bcb2
RK
101config TRACE_IRQFLAGS_SUPPORT
102 bool
103 default y
104
4a2581a0
TG
105config HARDIRQS_SW_RESEND
106 bool
107 default y
108
109config GENERIC_IRQ_PROBE
110 bool
111 default y
112
95c354fe
NP
113config GENERIC_LOCKBREAK
114 bool
115 default y
116 depends on SMP && PREEMPT
117
1da177e4
LT
118config RWSEM_GENERIC_SPINLOCK
119 bool
120 default y
121
122config RWSEM_XCHGADD_ALGORITHM
123 bool
124
f0d1b0b3
DH
125config ARCH_HAS_ILOG2_U32
126 bool
f0d1b0b3
DH
127
128config ARCH_HAS_ILOG2_U64
129 bool
f0d1b0b3 130
89c52ed4
BD
131config ARCH_HAS_CPUFREQ
132 bool
133 help
134 Internal node to signify that the ARCH has CPUFREQ support
135 and that the relevant menu configurations are displayed for
136 it.
137
b89c3b16
AM
138config GENERIC_HWEIGHT
139 bool
140 default y
141
1da177e4
LT
142config GENERIC_CALIBRATE_DELAY
143 bool
144 default y
145
a08b6b79
Z
146config ARCH_MAY_HAVE_PC_FDC
147 bool
148
5ac6da66
CL
149config ZONE_DMA
150 bool
5ac6da66 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 161config GENERIC_HARDIRQS_NO__DO_IRQ
60a752ef
PZ
162 def_bool y
163
c0ffa3a9
MD
164if OPROFILE
165
166config OPROFILE_ARMV6
167 def_bool y
168 depends on CPU_V6 && !SMP
169 select OPROFILE_ARM11_CORE
170
171config OPROFILE_MPCORE
172 def_bool y
173 depends on CPU_V6 && SMP
174 select OPROFILE_ARM11_CORE
175
176config OPROFILE_ARM11_CORE
177 bool
178
d7ac4e28
JP
179config OPROFILE_ARMV7
180 def_bool y
181 depends on CPU_V7 && !SMP
182 bool
183
c0ffa3a9
MD
184endif
185
c760fc19
HC
186config VECTORS_BASE
187 hex
6afd6fae 188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
c760fc19
HC
189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
1da177e4
LT
194source "init/Kconfig"
195
dc52ddc0
MH
196source "kernel/Kconfig.freezer"
197
1da177e4
LT
198menu "System Type"
199
3c427975
HC
200config MMU
201 bool "MMU-based Paged Memory Management Support"
202 default y
203 help
204 Select if you want MMU-based virtualised addressing space
205 support by paged memory management. If unsure, say 'Y'.
206
1da177e4
LT
207choice
208 prompt "ARM system type"
6a0e2430 209 default ARCH_VERSATILE
1da177e4 210
4af6fee1
DS
211config ARCH_AAEC2000
212 bool "Agilent AAEC-2000 based"
c750815e 213 select CPU_ARM920T
4af6fee1 214 select ARM_AMBA
9483a578 215 select HAVE_CLK
4af6fee1
DS
216 help
217 This enables support for systems based on the Agilent AAEC-2000
218
219config ARCH_INTEGRATOR
220 bool "ARM Ltd. Integrator family"
221 select ARM_AMBA
89c52ed4 222 select ARCH_HAS_CPUFREQ
9483a578 223 select HAVE_CLK
d72fbdf0 224 select COMMON_CLKDEV
4af6fee1
DS
225 select ICST525
226 help
227 Support for ARM's Integrator platform.
228
229config ARCH_REALVIEW
230 bool "ARM Ltd. RealView family"
231 select ARM_AMBA
9483a578 232 select HAVE_CLK
cf30fb4a 233 select COMMON_CLKDEV
4af6fee1 234 select ICST307
85802afe 235 select GENERIC_TIME
ae30ceac 236 select GENERIC_CLOCKEVENTS
eb7fffa3 237 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1
DS
238 help
239 This enables support for ARM Ltd RealView boards.
240
241config ARCH_VERSATILE
242 bool "ARM Ltd. Versatile family"
243 select ARM_AMBA
244 select ARM_VIC
9483a578 245 select HAVE_CLK
71a06da0 246 select COMMON_CLKDEV
4af6fee1 247 select ICST307
b49c87c2 248 select GENERIC_TIME
89df1272 249 select GENERIC_CLOCKEVENTS
bbeddc43 250 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1
DS
251 help
252 This enables support for ARM Ltd Versatile board.
253
8fc5ffa0
AV
254config ARCH_AT91
255 bool "Atmel AT91"
0a938b97 256 select GENERIC_GPIO
f373e8c0 257 select ARCH_REQUIRE_GPIOLIB
93686ae8 258 select HAVE_CLK
4af6fee1 259 help
2b3b3516
AV
260 This enables support for systems based on the Atmel AT91RM9200,
261 AT91SAM9 and AT91CAP9 processors.
4af6fee1 262
1da177e4 263config ARCH_CLPS711X
4af6fee1 264 bool "Cirrus Logic CLPS711x/EP721x-based"
c750815e 265 select CPU_ARM720T
f999b8bd
MM
266 help
267 Support for Cirrus Logic 711x/721x based boards.
1da177e4 268
788c9700
RK
269config ARCH_GEMINI
270 bool "Cortina Systems Gemini"
271 select CPU_FA526
272 select GENERIC_GPIO
273 select ARCH_REQUIRE_GPIOLIB
274 help
275 Support for the Cortina Systems Gemini family SoCs
276
1da177e4
LT
277config ARCH_EBSA110
278 bool "EBSA-110"
c750815e 279 select CPU_SA110
f7e68bbf 280 select ISA
c5eb2a2b 281 select NO_IOPORT
1da177e4
LT
282 help
283 This is an evaluation board for the StrongARM processor available
f6c8965a 284 from Digital. It has limited hardware on-board, including an
1da177e4
LT
285 Ethernet interface, two PCMCIA sockets, two serial ports and a
286 parallel port.
287
e7736d47
LB
288config ARCH_EP93XX
289 bool "EP93xx-based"
c750815e 290 select CPU_ARM920T
e7736d47
LB
291 select ARM_AMBA
292 select ARM_VIC
4e9f9fd5 293 select GENERIC_GPIO
9483a578 294 select HAVE_CLK
ae696fd5 295 select COMMON_CLKDEV
7444a72e 296 select ARCH_REQUIRE_GPIOLIB
eb33575c 297 select ARCH_HAS_HOLES_MEMORYMODEL
e7736d47
LB
298 help
299 This enables support for the Cirrus EP93xx series of CPUs.
300
1da177e4
LT
301config ARCH_FOOTBRIDGE
302 bool "FootBridge"
c750815e 303 select CPU_SA110
1da177e4 304 select FOOTBRIDGE
f999b8bd
MM
305 help
306 Support for systems based on the DC21285 companion chip
307 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 308
788c9700
RK
309config ARCH_MXC
310 bool "Freescale MXC/iMX-based"
311 select GENERIC_TIME
312 select GENERIC_CLOCKEVENTS
313 select ARCH_MTD_XIP
314 select GENERIC_GPIO
315 select ARCH_REQUIRE_GPIOLIB
a2ab67fa 316 select HAVE_CLK
788c9700
RK
317 help
318 Support for Freescale MXC/iMX-based family of processors
319
7bd0f2f5 320config ARCH_STMP3XXX
321 bool "Freescale STMP3xxx"
322 select CPU_ARM926T
323 select HAVE_CLK
324 select COMMON_CLKDEV
325 select ARCH_REQUIRE_GPIOLIB
326 select GENERIC_TIME
327 select GENERIC_CLOCKEVENTS
328 select GENERIC_GPIO
329 select USB_ARCH_HAS_EHCI
330 help
331 Support for systems based on the Freescale 3xxx CPUs.
332
4af6fee1
DS
333config ARCH_NETX
334 bool "Hilscher NetX based"
c750815e 335 select CPU_ARM926T
4af6fee1 336 select ARM_VIC
2fcfe6b8 337 select GENERIC_CLOCKEVENTS
21edecd3 338 select GENERIC_TIME
f999b8bd 339 help
4af6fee1
DS
340 This enables support for systems based on the Hilscher NetX Soc
341
342config ARCH_H720X
343 bool "Hynix HMS720x-based"
c750815e 344 select CPU_ARM720T
4af6fee1
DS
345 select ISA_DMA_API
346 help
347 This enables support for systems based on the Hynix HMS720x
348
28ad94ec
AR
349config ARCH_NOMADIK
350 bool "STMicroelectronics Nomadik"
351 select ARM_AMBA
352 select ARM_VIC
353 select CPU_ARM926T
354 select HAVE_CLK
355 select COMMON_CLKDEV
356 select GENERIC_TIME
357 select GENERIC_CLOCKEVENTS
2ec1d359
AR
358 select GENERIC_GPIO
359 select ARCH_REQUIRE_GPIOLIB
28ad94ec
AR
360 help
361 Support for the Nomadik platform by ST-Ericsson
362
3b938be6
RK
363config ARCH_IOP13XX
364 bool "IOP13xx-based"
365 depends on MMU
c750815e 366 select CPU_XSC3
3b938be6
RK
367 select PLAT_IOP
368 select PCI
369 select ARCH_SUPPORTS_MSI
8d5796d2 370 select VMSPLIT_1G
3b938be6
RK
371 help
372 Support for Intel's IOP13XX (XScale) family of processors.
373
3f7e5815
LB
374config ARCH_IOP32X
375 bool "IOP32x-based"
a4f7e763 376 depends on MMU
c750815e 377 select CPU_XSCALE
7ae1f7ec 378 select PLAT_IOP
f7e68bbf 379 select PCI
63f385cd 380 select GENERIC_GPIO
bb2b180c 381 select ARCH_REQUIRE_GPIOLIB
f999b8bd 382 help
3f7e5815
LB
383 Support for Intel's 80219 and IOP32X (XScale) family of
384 processors.
385
386config ARCH_IOP33X
387 bool "IOP33x-based"
388 depends on MMU
c750815e 389 select CPU_XSCALE
7ae1f7ec 390 select PLAT_IOP
3f7e5815 391 select PCI
63f385cd 392 select GENERIC_GPIO
bb2b180c 393 select ARCH_REQUIRE_GPIOLIB
3f7e5815
LB
394 help
395 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 396
3b938be6
RK
397config ARCH_IXP23XX
398 bool "IXP23XX-based"
a4f7e763 399 depends on MMU
c750815e 400 select CPU_XSC3
3b938be6 401 select PCI
f999b8bd 402 help
3b938be6 403 Support for Intel's IXP23xx (XScale) family of processors.
1da177e4
LT
404
405config ARCH_IXP2000
406 bool "IXP2400/2800-based"
a4f7e763 407 depends on MMU
c750815e 408 select CPU_XSCALE
f7e68bbf 409 select PCI
f999b8bd
MM
410 help
411 Support for Intel's IXP2400/2800 (XScale) family of processors.
1da177e4 412
3b938be6
RK
413config ARCH_IXP4XX
414 bool "IXP4xx-based"
a4f7e763 415 depends on MMU
c750815e 416 select CPU_XSCALE
8858e9af 417 select GENERIC_GPIO
3b938be6
RK
418 select GENERIC_TIME
419 select GENERIC_CLOCKEVENTS
485bdde7 420 select DMABOUNCE if PCI
c4713074 421 help
3b938be6 422 Support for Intel's IXP4XX (XScale) family of processors.
c4713074 423
1da177e4
LT
424config ARCH_L7200
425 bool "LinkUp-L7200"
c750815e 426 select CPU_ARM720T
1da177e4
LT
427 select FIQ
428 help
429 Say Y here if you intend to run this kernel on a LinkUp Systems
430 L7200 Software Development Board which uses an ARM720T processor.
431 Information on this board can be obtained at:
432
433 <http://www.linkupsys.com/>
434
435 If you have any questions or comments about the Linux kernel port
436 to this board, send e-mail to <sjhill@cotw.com>.
437
edabd38e
SB
438config ARCH_DOVE
439 bool "Marvell Dove"
440 select PCI
441 select GENERIC_GPIO
442 select ARCH_REQUIRE_GPIOLIB
443 select GENERIC_TIME
444 select GENERIC_CLOCKEVENTS
445 select PLAT_ORION
446 help
447 Support for the Marvell Dove SoC 88AP510
448
651c74c7
SB
449config ARCH_KIRKWOOD
450 bool "Marvell Kirkwood"
c750815e 451 select CPU_FEROCEON
651c74c7 452 select PCI
4c213430 453 select GENERIC_GPIO
a8865655 454 select ARCH_REQUIRE_GPIOLIB
651c74c7
SB
455 select GENERIC_TIME
456 select GENERIC_CLOCKEVENTS
457 select PLAT_ORION
458 help
459 Support for the following Marvell Kirkwood series SoCs:
460 88F6180, 88F6192 and 88F6281.
461
777f9beb
LB
462config ARCH_LOKI
463 bool "Marvell Loki (88RC8480)"
c750815e 464 select CPU_FEROCEON
777f9beb
LB
465 select GENERIC_TIME
466 select GENERIC_CLOCKEVENTS
467 select PLAT_ORION
468 help
469 Support for the Marvell Loki (88RC8480) SoC.
470
794d15b2
SS
471config ARCH_MV78XX0
472 bool "Marvell MV78xx0"
c750815e 473 select CPU_FEROCEON
794d15b2 474 select PCI
b95a13d7 475 select GENERIC_GPIO
a8865655 476 select ARCH_REQUIRE_GPIOLIB
794d15b2
SS
477 select GENERIC_TIME
478 select GENERIC_CLOCKEVENTS
479 select PLAT_ORION
480 help
481 Support for the following Marvell MV78xx0 series SoCs:
482 MV781x0, MV782x0.
483
9dd0b194 484config ARCH_ORION5X
585cf175
TP
485 bool "Marvell Orion"
486 depends on MMU
c750815e 487 select CPU_FEROCEON
038ee083 488 select PCI
01af72e4 489 select GENERIC_GPIO
a8865655 490 select ARCH_REQUIRE_GPIOLIB
51cbff1d
TP
491 select GENERIC_TIME
492 select GENERIC_CLOCKEVENTS
69b02f6a 493 select PLAT_ORION
585cf175 494 help
9dd0b194 495 Support for the following Marvell Orion 5x series SoCs:
d2b2a6bb 496 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
d323ade1 497 Orion-2 (5281), Orion-1-90 (6183).
585cf175 498
788c9700
RK
499config ARCH_MMP
500 bool "Marvell PXA168/910"
501 depends on MMU
502 select GENERIC_GPIO
503 select ARCH_REQUIRE_GPIOLIB
504 select HAVE_CLK
505 select COMMON_CLKDEV
506 select GENERIC_TIME
507 select GENERIC_CLOCKEVENTS
508 select TICK_ONESHOT
509 select PLAT_PXA
510 help
511 Support for Marvell's PXA168/910 processor line.
512
513config ARCH_KS8695
514 bool "Micrel/Kendin KS8695"
515 select CPU_ARM922T
516 select GENERIC_GPIO
517 select ARCH_REQUIRE_GPIOLIB
518 help
519 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
520 System-on-Chip devices.
521
522config ARCH_NS9XXX
523 bool "NetSilicon NS9xxx"
524 select CPU_ARM926T
525 select GENERIC_GPIO
526 select GENERIC_TIME
527 select GENERIC_CLOCKEVENTS
528 select HAVE_CLK
529 help
530 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
531 System.
532
533 <http://www.digi.com/products/microprocessors/index.jsp>
534
535config ARCH_W90X900
536 bool "Nuvoton W90X900 CPU"
537 select CPU_ARM926T
c52d3d68 538 select ARCH_REQUIRE_GPIOLIB
539 select GENERIC_GPIO
d2c24195 540 select HAVE_CLK
0e4a34bb 541 select COMMON_CLKDEV
58b5369e 542 select GENERIC_TIME
543 select GENERIC_CLOCKEVENTS
788c9700 544 help
a8bc4ead 545 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
546 At present, the w90x900 has been renamed nuc900, regarding
547 the ARM series product line, you can login the following
548 link address to know more.
549
550 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
551 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
788c9700 552
4af6fee1
DS
553config ARCH_PNX4008
554 bool "Philips Nexperia PNX4008 Mobile"
c750815e 555 select CPU_ARM926T
9483a578 556 select HAVE_CLK
4af6fee1
DS
557 help
558 This enables support for Philips PNX4008 mobile platform.
559
1da177e4 560config ARCH_PXA
2c8086a5 561 bool "PXA2xx/PXA3xx-based"
a4f7e763 562 depends on MMU
034d2f5a 563 select ARCH_MTD_XIP
89c52ed4 564 select ARCH_HAS_CPUFREQ
0a938b97 565 select GENERIC_GPIO
9483a578 566 select HAVE_CLK
8c3abc7d 567 select COMMON_CLKDEV
7444a72e 568 select ARCH_REQUIRE_GPIOLIB
45cf5eef 569 select GENERIC_TIME
981d0f39 570 select GENERIC_CLOCKEVENTS
a88264c2 571 select TICK_ONESHOT
bd5ce433 572 select PLAT_PXA
f999b8bd 573 help
2c8086a5 574 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
1da177e4 575
788c9700
RK
576config ARCH_MSM
577 bool "Qualcomm MSM"
578 select CPU_V6
49cbe786
EM
579 select GENERIC_TIME
580 select GENERIC_CLOCKEVENTS
49cbe786 581 help
788c9700
RK
582 Support for Qualcomm MSM7K based systems. This runs on the ARM11
583 apps processor of the MSM7K and depends on a shared memory
584 interface to the ARM9 modem processor which runs the baseband stack
585 and controls some vital subsystems (clock and power control, etc).
49cbe786 586
1da177e4
LT
587config ARCH_RPC
588 bool "RiscPC"
589 select ARCH_ACORN
590 select FIQ
591 select TIMER_ACORN
a08b6b79 592 select ARCH_MAY_HAVE_PC_FDC
341eb781 593 select HAVE_PATA_PLATFORM
065909b9 594 select ISA_DMA_API
5ea81769 595 select NO_IOPORT
07f841b7 596 select ARCH_SPARSEMEM_ENABLE
1da177e4
LT
597 help
598 On the Acorn Risc-PC, Linux can support the internal IDE disk and
599 CD-ROM interface, serial and parallel port, and the floppy drive.
600
601config ARCH_SA1100
602 bool "SA1100-based"
c750815e 603 select CPU_SA1100
f7e68bbf 604 select ISA
05944d74 605 select ARCH_SPARSEMEM_ENABLE
034d2f5a 606 select ARCH_MTD_XIP
89c52ed4 607 select ARCH_HAS_CPUFREQ
1937f5b9 608 select CPU_FREQ
0a938b97 609 select GENERIC_GPIO
d142b6e7 610 select GENERIC_TIME
3e238be2 611 select GENERIC_CLOCKEVENTS
9483a578 612 select HAVE_CLK
3e238be2 613 select TICK_ONESHOT
7444a72e 614 select ARCH_REQUIRE_GPIOLIB
f999b8bd
MM
615 help
616 Support for StrongARM 11x0 based boards.
1da177e4
LT
617
618config ARCH_S3C2410
e4d06e39 619 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
0a938b97 620 select GENERIC_GPIO
9d56c02a 621 select ARCH_HAS_CPUFREQ
9483a578 622 select HAVE_CLK
1da177e4
LT
623 help
624 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
625 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
f6c8965a 626 the Samsung SMDK2410 development board (and derivatives).
1da177e4 627
a08ab637
BD
628config ARCH_S3C64XX
629 bool "Samsung S3C64XX"
89f1fa08 630 select PLAT_SAMSUNG
89f0ce72 631 select CPU_V6
a08ab637 632 select GENERIC_GPIO
89f0ce72 633 select ARM_VIC
a08ab637 634 select HAVE_CLK
89f0ce72 635 select NO_IOPORT
89c52ed4 636 select ARCH_HAS_CPUFREQ
89f0ce72
BD
637 select ARCH_REQUIRE_GPIOLIB
638 select SAMSUNG_CLKSRC
639 select SAMSUNG_IRQ_VIC_TIMER
640 select SAMSUNG_IRQ_UART
641 select S3C_GPIO_TRACK
642 select S3C_GPIO_PULL_UPDOWN
643 select S3C_GPIO_CFG_S3C24XX
644 select S3C_GPIO_CFG_S3C64XX
645 select S3C_DEV_NAND
646 select USB_ARCH_HAS_OHCI
647 select SAMSUNG_GPIOLIB_4BIT
a08ab637
BD
648 help
649 Samsung S3C64XX series based systems
650
c4ffccdd
KK
651config ARCH_S5P6440
652 bool "Samsung S5P6440"
653 select CPU_V6
654 select GENERIC_GPIO
655 select HAVE_CLK
656 help
657 Samsung S5P6440 CPU based systems
658
5a7652f2
BM
659config ARCH_S5PC1XX
660 bool "Samsung S5PC1XX"
661 select GENERIC_GPIO
662 select HAVE_CLK
663 select CPU_V7
664 help
665 Samsung S5PC1XX series based systems
666
1da177e4
LT
667config ARCH_SHARK
668 bool "Shark"
c750815e 669 select CPU_SA110
f7e68bbf
RK
670 select ISA
671 select ISA_DMA
3bca103a 672 select ZONE_DMA
f7e68bbf 673 select PCI
f999b8bd
MM
674 help
675 Support for the StrongARM based Digital DNARD machine, also known
676 as "Shark" (<http://www.shark-linux.de/shark.html>).
1da177e4
LT
677
678config ARCH_LH7A40X
679 bool "Sharp LH7A40X"
c750815e 680 select CPU_ARM922T
4ba3f7c5
RK
681 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
682 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
1da177e4
LT
683 help
684 Say Y here for systems based on one of the Sharp LH7A40X
685 System on a Chip processors. These CPUs include an ARM922T
686 core with a wide array of integrated devices for
687 hand-held and low-power applications.
688
d98aac75
LW
689config ARCH_U300
690 bool "ST-Ericsson U300 Series"
691 depends on MMU
692 select CPU_ARM926T
bc581770 693 select HAVE_TCM
d98aac75
LW
694 select ARM_AMBA
695 select ARM_VIC
696 select GENERIC_TIME
697 select GENERIC_CLOCKEVENTS
698 select HAVE_CLK
699 select COMMON_CLKDEV
700 select GENERIC_GPIO
701 help
702 Support for ST-Ericsson U300 series mobile platforms.
703
7c6337e2
KH
704config ARCH_DAVINCI
705 bool "TI DaVinci"
c750815e 706 select CPU_ARM926T
7c6337e2
KH
707 select GENERIC_TIME
708 select GENERIC_CLOCKEVENTS
3d9edf09 709 select GENERIC_GPIO
dce1115b 710 select ARCH_REQUIRE_GPIOLIB
9483a578 711 select HAVE_CLK
3bca103a 712 select ZONE_DMA
9232fcc9 713 select HAVE_IDE
c5b736d0 714 select COMMON_CLKDEV
20e9969b 715 select GENERIC_ALLOCATOR
ae88e05a 716 select ARCH_HAS_HOLES_MEMORYMODEL
7c6337e2
KH
717 help
718 Support for TI's DaVinci platform.
719
3b938be6
RK
720config ARCH_OMAP
721 bool "TI OMAP"
722 select GENERIC_GPIO
9483a578 723 select HAVE_CLK
7444a72e 724 select ARCH_REQUIRE_GPIOLIB
89c52ed4 725 select ARCH_HAS_CPUFREQ
3b938be6 726 select GENERIC_TIME
06cad098 727 select GENERIC_CLOCKEVENTS
3b938be6
RK
728 help
729 Support for TI's OMAP platform (OMAP1 and OMAP2).
730
6288e28d
LC
731config ARCH_BCMRING
732 bool "Broadcom BCMRING"
733 depends on MMU
734 select CPU_V6
735 select ARM_AMBA
736 select COMMON_CLKDEV
737 select GENERIC_TIME
738 select GENERIC_CLOCKEVENTS
739 select ARCH_WANT_OPTIONAL_GPIOLIB
740 help
741 Support for Broadcom's BCMRing platform.
742
850265e8
SK
743config ARCH_U8500
744 bool "ST-Ericsson U8500 Series"
745 select CPU_V7
746 select ARM_AMBA
747 select GENERIC_TIME
748 select GENERIC_CLOCKEVENTS
749 select COMMON_CLKDEV
750 help
751 Support for ST-Ericsson's Ux500 architecture
752
1da177e4
LT
753endchoice
754
755source "arch/arm/mach-clps711x/Kconfig"
756
e7736d47
LB
757source "arch/arm/mach-ep93xx/Kconfig"
758
1da177e4
LT
759source "arch/arm/mach-footbridge/Kconfig"
760
59d3a193
PZ
761source "arch/arm/mach-gemini/Kconfig"
762
1da177e4
LT
763source "arch/arm/mach-integrator/Kconfig"
764
3f7e5815
LB
765source "arch/arm/mach-iop32x/Kconfig"
766
767source "arch/arm/mach-iop33x/Kconfig"
1da177e4 768
285f5fa7
DW
769source "arch/arm/mach-iop13xx/Kconfig"
770
1da177e4
LT
771source "arch/arm/mach-ixp4xx/Kconfig"
772
773source "arch/arm/mach-ixp2000/Kconfig"
774
c4713074
LB
775source "arch/arm/mach-ixp23xx/Kconfig"
776
777f9beb
LB
777source "arch/arm/mach-loki/Kconfig"
778
794d15b2
SS
779source "arch/arm/mach-mv78xx0/Kconfig"
780
1da177e4 781source "arch/arm/mach-pxa/Kconfig"
bd5ce433 782source "arch/arm/plat-pxa/Kconfig"
1da177e4 783
49cbe786
EM
784source "arch/arm/mach-mmp/Kconfig"
785
1da177e4
LT
786source "arch/arm/mach-sa1100/Kconfig"
787
d48af15e
TL
788source "arch/arm/plat-omap/Kconfig"
789
790source "arch/arm/mach-omap1/Kconfig"
1da177e4 791
1dbae815
TL
792source "arch/arm/mach-omap2/Kconfig"
793
9dd0b194 794source "arch/arm/mach-orion5x/Kconfig"
585cf175 795
651c74c7 796source "arch/arm/mach-kirkwood/Kconfig"
585cf175 797
edabd38e
SB
798source "arch/arm/mach-dove/Kconfig"
799
cf383678 800source "arch/arm/plat-samsung/Kconfig"
a21765a7 801source "arch/arm/plat-s3c24xx/Kconfig"
d58153d8 802source "arch/arm/plat-s3c/Kconfig"
c4ffccdd 803source "arch/arm/plat-s5p/Kconfig"
5a7652f2 804source "arch/arm/plat-s5pc1xx/Kconfig"
a21765a7
BD
805
806if ARCH_S3C2410
807source "arch/arm/mach-s3c2400/Kconfig"
1da177e4 808source "arch/arm/mach-s3c2410/Kconfig"
a21765a7
BD
809source "arch/arm/mach-s3c2412/Kconfig"
810source "arch/arm/mach-s3c2440/Kconfig"
e4d06e39 811source "arch/arm/mach-s3c2443/Kconfig"
a21765a7 812endif
1da177e4 813
a08ab637 814if ARCH_S3C64XX
431107ea 815source "arch/arm/mach-s3c64xx/Kconfig"
a08ab637
BD
816endif
817
c4ffccdd
KK
818source "arch/arm/mach-s5p6440/Kconfig"
819
7bd0f2f5 820source "arch/arm/plat-stmp3xxx/Kconfig"
821
5a7652f2
BM
822if ARCH_S5PC1XX
823source "arch/arm/mach-s5pc100/Kconfig"
824endif
825
1da177e4
LT
826source "arch/arm/mach-lh7a40x/Kconfig"
827
1da177e4
LT
828source "arch/arm/mach-h720x/Kconfig"
829
830source "arch/arm/mach-versatile/Kconfig"
831
038c5b60
BN
832source "arch/arm/mach-aaec2000/Kconfig"
833
8ad68bbf
CM
834source "arch/arm/mach-realview/Kconfig"
835
9d041268 836source "arch/arm/mach-at91/Kconfig"
73a59c1c 837
52c543f9
QJ
838source "arch/arm/plat-mxc/Kconfig"
839
28ad94ec 840source "arch/arm/mach-nomadik/Kconfig"
59b559d7 841source "arch/arm/plat-nomadik/Kconfig"
28ad94ec 842
bb6d8c88
SH
843source "arch/arm/mach-netx/Kconfig"
844
9918cda5
UKK
845source "arch/arm/mach-ns9xxx/Kconfig"
846
7c6337e2
KH
847source "arch/arm/mach-davinci/Kconfig"
848
c53c9cf6
AV
849source "arch/arm/mach-ks8695/Kconfig"
850
9e73c84c
BS
851source "arch/arm/mach-msm/Kconfig"
852
d98aac75
LW
853source "arch/arm/mach-u300/Kconfig"
854
7ec80ddf 855source "arch/arm/mach-w90x900/Kconfig"
856
6288e28d
LC
857source "arch/arm/mach-bcmring/Kconfig"
858
850265e8
SK
859source "arch/arm/mach-ux500/Kconfig"
860
1da177e4
LT
861# Definitions to make life easier
862config ARCH_ACORN
863 bool
864
7ae1f7ec
LB
865config PLAT_IOP
866 bool
469d3044 867 select GENERIC_CLOCKEVENTS
980f2296 868 select GENERIC_TIME
7ae1f7ec 869
69b02f6a
LB
870config PLAT_ORION
871 bool
872
bd5ce433
EM
873config PLAT_PXA
874 bool
875
1da177e4
LT
876source arch/arm/mm/Kconfig
877
afe4b25e
LB
878config IWMMXT
879 bool "Enable iWMMXt support"
40305a58
EM
880 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
881 default y if PXA27x || PXA3xx || ARCH_MMP
afe4b25e
LB
882 help
883 Enable support for iWMMXt context switching at run time if
884 running on a CPU that supports it.
885
1da177e4
LT
886# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
887config XSCALE_PMU
888 bool
889 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
890 default y
891
3b93e7b0
HC
892if !MMU
893source "arch/arm/Kconfig-nommu"
894endif
895
9cba3ccc
CM
896config ARM_ERRATA_411920
897 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
898 depends on CPU_V6 && !SMP
899 help
900 Invalidation of the Instruction Cache operation can
901 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
902 It does not affect the MPCore. This option enables the ARM Ltd.
903 recommended workaround.
904
7ce236fc
CM
905config ARM_ERRATA_430973
906 bool "ARM errata: Stale prediction on replaced interworking branch"
907 depends on CPU_V7
908 help
909 This option enables the workaround for the 430973 Cortex-A8
910 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
911 interworking branch is replaced with another code sequence at the
912 same virtual address, whether due to self-modifying code or virtual
913 to physical address re-mapping, Cortex-A8 does not recover from the
914 stale interworking branch prediction. This results in Cortex-A8
915 executing the new code sequence in the incorrect ARM or Thumb state.
916 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
917 and also flushes the branch target cache at every context switch.
918 Note that setting specific bits in the ACTLR register may not be
919 available in non-secure mode.
920
855c551f
CM
921config ARM_ERRATA_458693
922 bool "ARM errata: Processor deadlock when a false hazard is created"
923 depends on CPU_V7
924 help
925 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
926 erratum. For very specific sequences of memory operations, it is
927 possible for a hazard condition intended for a cache line to instead
928 be incorrectly associated with a different cache line. This false
929 hazard might then cause a processor deadlock. The workaround enables
930 the L1 caching of the NEON accesses and disables the PLD instruction
931 in the ACTLR register. Note that setting specific bits in the ACTLR
932 register may not be available in non-secure mode.
933
0516e464
CM
934config ARM_ERRATA_460075
935 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
936 depends on CPU_V7
937 help
938 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
939 erratum. Any asynchronous access to the L2 cache may encounter a
940 situation in which recent store transactions to the L2 cache are lost
941 and overwritten with stale memory contents from external memory. The
942 workaround disables the write-allocate mode for the L2 cache via the
943 ACTLR register. Note that setting specific bits in the ACTLR register
944 may not be available in non-secure mode.
945
1da177e4
LT
946endmenu
947
948source "arch/arm/common/Kconfig"
949
950config FORCE_MAX_ZONEORDER
951 int
952 depends on SA1111
953 default "9"
954
955menu "Bus support"
956
957config ARM_AMBA
958 bool
959
960config ISA
961 bool
1da177e4
LT
962 help
963 Find out whether you have ISA slots on your motherboard. ISA is the
964 name of a bus system, i.e. the way the CPU talks to the other stuff
965 inside your box. Other bus systems are PCI, EISA, MicroChannel
966 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
967 newer boards don't support it. If you have ISA, say Y, otherwise N.
968
065909b9 969# Select ISA DMA controller support
1da177e4
LT
970config ISA_DMA
971 bool
065909b9 972 select ISA_DMA_API
1da177e4 973
065909b9 974# Select ISA DMA interface
5cae841b
AV
975config ISA_DMA_API
976 bool
5cae841b 977
1da177e4 978config PCI
a0113a99 979 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
1da177e4
LT
980 help
981 Find out whether you have a PCI motherboard. PCI is the name of a
982 bus system, i.e. the way the CPU talks to the other stuff inside
983 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
984 VESA. If you have PCI, say Y, otherwise N.
985
36e23590
MW
986config PCI_SYSCALL
987 def_bool PCI
988
1da177e4
LT
989# Select the host bridge type
990config PCI_HOST_VIA82C505
991 bool
992 depends on PCI && ARCH_SHARK
993 default y
994
a0113a99
MR
995config PCI_HOST_ITE8152
996 bool
997 depends on PCI && MACH_ARMCORE
998 default y
999 select DMABOUNCE
1000
1da177e4
LT
1001source "drivers/pci/Kconfig"
1002
1003source "drivers/pcmcia/Kconfig"
1004
1005endmenu
1006
1007menu "Kernel Features"
1008
0567a0c0
KH
1009source "kernel/time/Kconfig"
1010
1da177e4
LT
1011config SMP
1012 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
42578c82 1013 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
850265e8 1014 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
bc28248e 1015 depends on GENERIC_CLOCKEVENTS
f6dd9fa5 1016 select USE_GENERIC_SMP_HELPERS
850265e8 1017 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
1da177e4
LT
1018 help
1019 This enables support for systems with more than one CPU. If you have
1020 a system with only one CPU, like most personal computers, say N. If
1021 you have a system with more than one CPU, say Y.
1022
1023 If you say N here, the kernel will run on single and multiprocessor
1024 machines, but will use only one CPU of a multiprocessor machine. If
1025 you say Y here, the kernel will run on many, but not all, single
1026 processor machines. On a single processor machine, the kernel will
1027 run faster if you say N here.
1028
03502faa 1029 See also <file:Documentation/i386/IO-APIC.txt>,
1da177e4
LT
1030 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1031 <http://www.linuxdoc.org/docs.html#howto>.
1032
1033 If you don't know what to do here, say N.
1034
a8cbcd92
RK
1035config HAVE_ARM_SCU
1036 bool
1037 depends on SMP
1038 help
1039 This option enables support for the ARM system coherency unit
1040
f32f4ce2
RK
1041config HAVE_ARM_TWD
1042 bool
1043 depends on SMP
1044 help
1045 This options enables support for the ARM timer and watchdog unit
1046
8d5796d2
LB
1047choice
1048 prompt "Memory split"
1049 default VMSPLIT_3G
1050 help
1051 Select the desired split between kernel and user memory.
1052
1053 If you are not absolutely sure what you are doing, leave this
1054 option alone!
1055
1056 config VMSPLIT_3G
1057 bool "3G/1G user/kernel split"
1058 config VMSPLIT_2G
1059 bool "2G/2G user/kernel split"
1060 config VMSPLIT_1G
1061 bool "1G/3G user/kernel split"
1062endchoice
1063
1064config PAGE_OFFSET
1065 hex
1066 default 0x40000000 if VMSPLIT_1G
1067 default 0x80000000 if VMSPLIT_2G
1068 default 0xC0000000
1069
1da177e4
LT
1070config NR_CPUS
1071 int "Maximum number of CPUs (2-32)"
1072 range 2 32
1073 depends on SMP
1074 default "4"
1075
a054a811
RK
1076config HOTPLUG_CPU
1077 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1078 depends on SMP && HOTPLUG && EXPERIMENTAL
1079 help
1080 Say Y here to experiment with turning CPUs off and on. CPUs
1081 can be controlled through /sys/devices/system/cpu.
1082
37ee16ae
RK
1083config LOCAL_TIMERS
1084 bool "Use local timer interrupts"
42578c82 1085 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
850265e8 1086 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
37ee16ae 1087 default y
850265e8 1088 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
37ee16ae
RK
1089 help
1090 Enable support for local timers on SMP platforms, rather then the
1091 legacy IPI broadcast method. Local timers allows the system
1092 accounting to be spread across the timer interval, preventing a
1093 "thundering herd" at every timer tick.
1094
d45a398f 1095source kernel/Kconfig.preempt
1da177e4 1096
f8065813
RK
1097config HZ
1098 int
1099 default 128 if ARCH_L7200
c4ffccdd 1100 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440
bfe65704 1101 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
5248c657 1102 default AT91_TIMER_HZ if ARCH_AT91
f8065813
RK
1103 default 100
1104
16c79651
CM
1105config THUMB2_KERNEL
1106 bool "Compile the kernel in Thumb-2 mode"
1107 depends on CPU_V7 && EXPERIMENTAL
1108 select AEABI
1109 select ARM_ASM_UNIFIED
1110 help
1111 By enabling this option, the kernel will be compiled in
1112 Thumb-2 mode. A compiler/assembler that understand the unified
1113 ARM-Thumb syntax is needed.
1114
1115 If unsure, say N.
1116
0becb088
CM
1117config ARM_ASM_UNIFIED
1118 bool
1119
704bdda0
NP
1120config AEABI
1121 bool "Use the ARM EABI to compile the kernel"
1122 help
1123 This option allows for the kernel to be compiled using the latest
1124 ARM ABI (aka EABI). This is only useful if you are using a user
1125 space environment that is also compiled with EABI.
1126
1127 Since there are major incompatibilities between the legacy ABI and
1128 EABI, especially with regard to structure member alignment, this
1129 option also changes the kernel syscall calling convention to
1130 disambiguate both ABIs and allow for backward compatibility support
1131 (selected with CONFIG_OABI_COMPAT).
1132
1133 To use this you need GCC version 4.0.0 or later.
1134
6c90c872 1135config OABI_COMPAT
a73a3ff1 1136 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
61c484d4 1137 depends on AEABI && EXPERIMENTAL
6c90c872
NP
1138 default y
1139 help
1140 This option preserves the old syscall interface along with the
1141 new (ARM EABI) one. It also provides a compatibility layer to
1142 intercept syscalls that have structure arguments which layout
1143 in memory differs between the legacy ABI and the new ARM EABI
1144 (only for non "thumb" binaries). This option adds a tiny
1145 overhead to all syscalls and produces a slightly larger kernel.
1146 If you know you'll be using only pure EABI user space then you
1147 can say N here. If this option is not selected and you attempt
1148 to execute a legacy ABI binary then the result will be
1149 UNPREDICTABLE (in fact it can be predicted that it won't work
1150 at all). If in doubt say Y.
1151
eb33575c 1152config ARCH_HAS_HOLES_MEMORYMODEL
e80d6a24 1153 bool
e80d6a24 1154
07a2f737 1155# Discontigmem is deprecated
3f22ab27 1156config ARCH_DISCONTIGMEM_ENABLE
1da177e4 1157 bool
1da177e4 1158
05944d74
RK
1159config ARCH_SPARSEMEM_ENABLE
1160 bool
1161
07a2f737
RK
1162config ARCH_SPARSEMEM_DEFAULT
1163 def_bool ARCH_SPARSEMEM_ENABLE
1164
05944d74 1165config ARCH_SELECT_MEMORY_MODEL
07a2f737 1166 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
05944d74 1167
c80d79d7
YG
1168config NODES_SHIFT
1169 int
1170 default "4" if ARCH_LH7A40X
1171 default "2"
1172 depends on NEED_MULTIPLE_NODES
1173
053a96ca
NP
1174config HIGHMEM
1175 bool "High Memory Support (EXPERIMENTAL)"
1176 depends on MMU && EXPERIMENTAL
1177 help
1178 The address space of ARM processors is only 4 Gigabytes large
1179 and it has to accommodate user address space, kernel address
1180 space as well as some memory mapped IO. That means that, if you
1181 have a large amount of physical memory and/or IO, not all of the
1182 memory can be "permanently mapped" by the kernel. The physical
1183 memory that is not permanently mapped is called "high memory".
1184
1185 Depending on the selected kernel/user memory split, minimum
1186 vmalloc space and actual amount of RAM, you may not need this
1187 option which should result in a slightly faster kernel.
1188
1189 If unsure, say n.
1190
65cec8e3
RK
1191config HIGHPTE
1192 bool "Allocate 2nd-level pagetables from highmem"
1193 depends on HIGHMEM
1194 depends on !OUTER_CACHE
1195
3f22ab27
DH
1196source "mm/Kconfig"
1197
1da177e4
LT
1198config LEDS
1199 bool "Timer and CPU usage LEDs"
e055d5bf 1200 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
8c8fdbc9 1201 ARCH_EBSA285 || ARCH_INTEGRATOR || \
1da177e4
LT
1202 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1203 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
73a59c1c 1204 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
25329671 1205 ARCH_AT91 || ARCH_DAVINCI || \
ff3042fb 1206 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
1da177e4
LT
1207 help
1208 If you say Y here, the LEDs on your machine will be used
1209 to provide useful information about your current system status.
1210
1211 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1212 be able to select which LEDs are active using the options below. If
1213 you are compiling a kernel for the EBSA-110 or the LART however, the
1214 red LED will simply flash regularly to indicate that the system is
1215 still functional. It is safe to say Y here if you have a CATS
1216 system, but the driver will do nothing.
1217
1218config LEDS_TIMER
1219 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
eebdf7d7
DB
1220 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1221 || MACH_OMAP_PERSEUS2
1da177e4 1222 depends on LEDS
0567a0c0 1223 depends on !GENERIC_CLOCKEVENTS
1da177e4
LT
1224 default y if ARCH_EBSA110
1225 help
1226 If you say Y here, one of the system LEDs (the green one on the
1227 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1228 will flash regularly to indicate that the system is still
1229 operational. This is mainly useful to kernel hackers who are
1230 debugging unstable kernels.
1231
1232 The LART uses the same LED for both Timer LED and CPU usage LED
1233 functions. You may choose to use both, but the Timer LED function
1234 will overrule the CPU usage LED.
1235
1236config LEDS_CPU
1237 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
eebdf7d7
DB
1238 !ARCH_OMAP) \
1239 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1240 || MACH_OMAP_PERSEUS2
1da177e4
LT
1241 depends on LEDS
1242 help
1243 If you say Y here, the red LED will be used to give a good real
1244 time indication of CPU usage, by lighting whenever the idle task
1245 is not currently executing.
1246
1247 The LART uses the same LED for both Timer LED and CPU usage LED
1248 functions. You may choose to use both, but the Timer LED function
1249 will overrule the CPU usage LED.
1250
1251config ALIGNMENT_TRAP
1252 bool
f12d0d7c 1253 depends on CPU_CP15_MMU
1da177e4
LT
1254 default y if !ARCH_EBSA110
1255 help
84eb8d06 1256 ARM processors cannot fetch/store information which is not
1da177e4
LT
1257 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1258 address divisible by 4. On 32-bit ARM processors, these non-aligned
1259 fetch/store instructions will be emulated in software if you say
1260 here, which has a severe performance impact. This is necessary for
1261 correct operation of some network protocols. With an IP-only
1262 configuration it is safe to say N, otherwise say Y.
1263
39ec58f3
LB
1264config UACCESS_WITH_MEMCPY
1265 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1266 depends on MMU && EXPERIMENTAL
1267 default y if CPU_FEROCEON
1268 help
1269 Implement faster copy_to_user and clear_user methods for CPU
1270 cores where a 8-word STM instruction give significantly higher
1271 memory write throughput than a sequence of individual 32bit stores.
1272
1273 A possible side effect is a slight increase in scheduling latency
1274 between threads sharing the same address space if they invoke
1275 such copy operations with large buffers.
1276
1277 However, if the CPU data cache is using a write-allocate mode,
1278 this option is unlikely to provide any performance gain.
1279
1da177e4
LT
1280endmenu
1281
1282menu "Boot options"
1283
1284# Compressed boot loader in ROM. Yes, we really want to ask about
1285# TEXT and BSS so we preserve their values in the config files.
1286config ZBOOT_ROM_TEXT
1287 hex "Compressed ROM boot loader base address"
1288 default "0"
1289 help
1290 The physical address at which the ROM-able zImage is to be
1291 placed in the target. Platforms which normally make use of
1292 ROM-able zImage formats normally set this to a suitable
1293 value in their defconfig file.
1294
1295 If ZBOOT_ROM is not enabled, this has no effect.
1296
1297config ZBOOT_ROM_BSS
1298 hex "Compressed ROM boot loader BSS address"
1299 default "0"
1300 help
f8c440b2
DF
1301 The base address of an area of read/write memory in the target
1302 for the ROM-able zImage which must be available while the
1303 decompressor is running. It must be large enough to hold the
1304 entire decompressed kernel plus an additional 128 KiB.
1305 Platforms which normally make use of ROM-able zImage formats
1306 normally set this to a suitable value in their defconfig file.
1da177e4
LT
1307
1308 If ZBOOT_ROM is not enabled, this has no effect.
1309
1310config ZBOOT_ROM
1311 bool "Compressed boot loader in ROM/flash"
1312 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1313 help
1314 Say Y here if you intend to execute your compressed kernel image
1315 (zImage) directly from ROM or flash. If unsure, say N.
1316
1317config CMDLINE
1318 string "Default kernel command string"
1319 default ""
1320 help
1321 On some architectures (EBSA110 and CATS), there is currently no way
1322 for the boot loader to pass arguments to the kernel. For these
1323 architectures, you should supply some command-line options at build
1324 time by entering them here. As a minimum, you should specify the
1325 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1326
1327config XIP_KERNEL
1328 bool "Kernel Execute-In-Place from ROM"
1329 depends on !ZBOOT_ROM
1330 help
1331 Execute-In-Place allows the kernel to run from non-volatile storage
1332 directly addressable by the CPU, such as NOR flash. This saves RAM
1333 space since the text section of the kernel is not loaded from flash
1334 to RAM. Read-write sections, such as the data section and stack,
1335 are still copied to RAM. The XIP kernel is not compressed since
1336 it has to run directly from flash, so it will take more space to
1337 store it. The flash address used to link the kernel object files,
1338 and for storing it, is configuration dependent. Therefore, if you
1339 say Y here, you must know the proper physical address where to
1340 store the kernel image depending on your own flash memory usage.
1341
1342 Also note that the make target becomes "make xipImage" rather than
1343 "make zImage" or "make Image". The final kernel binary to put in
1344 ROM memory will be arch/arm/boot/xipImage.
1345
1346 If unsure, say N.
1347
1348config XIP_PHYS_ADDR
1349 hex "XIP Kernel Physical Location"
1350 depends on XIP_KERNEL
1351 default "0x00080000"
1352 help
1353 This is the physical address in your flash memory the kernel will
1354 be linked for and stored to. This address is dependent on your
1355 own flash usage.
1356
c587e4a6
RP
1357config KEXEC
1358 bool "Kexec system call (EXPERIMENTAL)"
1359 depends on EXPERIMENTAL
1360 help
1361 kexec is a system call that implements the ability to shutdown your
1362 current kernel, and to start another kernel. It is like a reboot
01dd2fbf 1363 but it is independent of the system firmware. And like a reboot
c587e4a6
RP
1364 you can start any kernel with it, not just Linux.
1365
1366 It is an ongoing process to be certain the hardware in a machine
1367 is properly shutdown, so do not be surprised if this code does not
1368 initially work for you. It may help to enable device hotplugging
1369 support.
1370
4cd9d6f7
RP
1371config ATAGS_PROC
1372 bool "Export atags in procfs"
b98d7291
UL
1373 depends on KEXEC
1374 default y
4cd9d6f7
RP
1375 help
1376 Should the atags used to boot the kernel be exported in an "atags"
1377 file in procfs. Useful with kexec.
1378
1da177e4
LT
1379endmenu
1380
ac9d7efc 1381menu "CPU Power Management"
1da177e4 1382
89c52ed4 1383if ARCH_HAS_CPUFREQ
1da177e4
LT
1384
1385source "drivers/cpufreq/Kconfig"
1386
1387config CPU_FREQ_SA1100
1388 bool
1da177e4
LT
1389
1390config CPU_FREQ_SA1110
1391 bool
1da177e4
LT
1392
1393config CPU_FREQ_INTEGRATOR
1394 tristate "CPUfreq driver for ARM Integrator CPUs"
1395 depends on ARCH_INTEGRATOR && CPU_FREQ
1396 default y
1397 help
1398 This enables the CPUfreq driver for ARM Integrator CPUs.
1399
1400 For details, take a look at <file:Documentation/cpu-freq>.
1401
1402 If in doubt, say Y.
1403
9e2697ff
RK
1404config CPU_FREQ_PXA
1405 bool
1406 depends on CPU_FREQ && ARCH_PXA && PXA25x
1407 default y
1408 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1409
b3748ddd
MB
1410config CPU_FREQ_S3C64XX
1411 bool "CPUfreq support for Samsung S3C64XX CPUs"
1412 depends on CPU_FREQ && CPU_S3C6410
1413
9d56c02a
BD
1414config CPU_FREQ_S3C
1415 bool
1416 help
1417 Internal configuration node for common cpufreq on Samsung SoC
1418
1419config CPU_FREQ_S3C24XX
1420 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1421 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1422 select CPU_FREQ_S3C
1423 help
1424 This enables the CPUfreq driver for the Samsung S3C24XX family
1425 of CPUs.
1426
1427 For details, take a look at <file:Documentation/cpu-freq>.
1428
1429 If in doubt, say N.
1430
1431config CPU_FREQ_S3C24XX_PLL
1432 bool "Support CPUfreq changing of PLL frequency"
1433 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1434 help
1435 Compile in support for changing the PLL frequency from the
1436 S3C24XX series CPUfreq driver. The PLL takes time to settle
1437 after a frequency change, so by default it is not enabled.
1438
1439 This also means that the PLL tables for the selected CPU(s) will
1440 be built which may increase the size of the kernel image.
1441
1442config CPU_FREQ_S3C24XX_DEBUG
1443 bool "Debug CPUfreq Samsung driver core"
1444 depends on CPU_FREQ_S3C24XX
1445 help
1446 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1447
1448config CPU_FREQ_S3C24XX_IODEBUG
1449 bool "Debug CPUfreq Samsung driver IO timing"
1450 depends on CPU_FREQ_S3C24XX
1451 help
1452 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1453
e6d197a6
BD
1454config CPU_FREQ_S3C24XX_DEBUGFS
1455 bool "Export debugfs for CPUFreq"
1456 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1457 help
1458 Export status information via debugfs.
1459
1da177e4
LT
1460endif
1461
ac9d7efc
RK
1462source "drivers/cpuidle/Kconfig"
1463
1464endmenu
1465
1da177e4
LT
1466menu "Floating point emulation"
1467
1468comment "At least one emulation must be selected"
1469
1470config FPE_NWFPE
1471 bool "NWFPE math emulation"
8993a44c 1472 depends on !AEABI || OABI_COMPAT
1da177e4
LT
1473 ---help---
1474 Say Y to include the NWFPE floating point emulator in the kernel.
1475 This is necessary to run most binaries. Linux does not currently
1476 support floating point hardware so you need to say Y here even if
1477 your machine has an FPA or floating point co-processor podule.
1478
1479 You may say N here if you are going to load the Acorn FPEmulator
1480 early in the bootup.
1481
1482config FPE_NWFPE_XP
1483 bool "Support extended precision"
bedf142b 1484 depends on FPE_NWFPE
1da177e4
LT
1485 help
1486 Say Y to include 80-bit support in the kernel floating-point
1487 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1488 Note that gcc does not generate 80-bit operations by default,
1489 so in most cases this option only enlarges the size of the
1490 floating point emulator without any good reason.
1491
1492 You almost surely want to say N here.
1493
1494config FPE_FASTFPE
1495 bool "FastFPE math emulation (EXPERIMENTAL)"
8993a44c 1496 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1da177e4
LT
1497 ---help---
1498 Say Y here to include the FAST floating point emulator in the kernel.
1499 This is an experimental much faster emulator which now also has full
1500 precision for the mantissa. It does not support any exceptions.
1501 It is very simple, and approximately 3-6 times faster than NWFPE.
1502
1503 It should be sufficient for most programs. It may be not suitable
1504 for scientific calculations, but you have to check this for yourself.
1505 If you do not feel you need a faster FP emulation you should better
1506 choose NWFPE.
1507
1508config VFP
1509 bool "VFP-format floating point maths"
c00d4ffd 1510 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1da177e4
LT
1511 help
1512 Say Y to include VFP support code in the kernel. This is needed
1513 if your hardware includes a VFP unit.
1514
1515 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1516 release notes and additional status information.
1517
1518 Say N if your target does not have VFP hardware.
1519
25ebee02
CM
1520config VFPv3
1521 bool
1522 depends on VFP
1523 default y if CPU_V7
1524
b5872db4
CM
1525config NEON
1526 bool "Advanced SIMD (NEON) Extension support"
1527 depends on VFPv3 && CPU_V7
1528 help
1529 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1530 Extension.
1531
1da177e4
LT
1532endmenu
1533
1534menu "Userspace binary formats"
1535
1536source "fs/Kconfig.binfmt"
1537
1538config ARTHUR
1539 tristate "RISC OS personality"
704bdda0 1540 depends on !AEABI
1da177e4
LT
1541 help
1542 Say Y here to include the kernel code necessary if you want to run
1543 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1544 experimental; if this sounds frightening, say N and sleep in peace.
1545 You can also say M here to compile this support as a module (which
1546 will be called arthur).
1547
1548endmenu
1549
1550menu "Power management options"
1551
eceab4ac 1552source "kernel/power/Kconfig"
1da177e4 1553
f4cb5700
JB
1554config ARCH_SUSPEND_POSSIBLE
1555 def_bool y
1556
1da177e4
LT
1557endmenu
1558
d5950b43
SR
1559source "net/Kconfig"
1560
ac25150f 1561source "drivers/Kconfig"
1da177e4
LT
1562
1563source "fs/Kconfig"
1564
1da177e4
LT
1565source "arch/arm/Kconfig.debug"
1566
1567source "security/Kconfig"
1568
1569source "crypto/Kconfig"
1570
1571source "lib/Kconfig"
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