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ARM: Add Versatile Express CA9x4 processor support
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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
24b44a66 15 select GENERIC_ATOMIC64 if (!CPU_32v6K)
42d4b839 16 select HAVE_OPROFILE
5cbad0eb 17 select HAVE_ARCH_KGDB
3f550096 18 select HAVE_KPROBES if (!XIP_KERNEL)
9edddaa2 19 select HAVE_KRETPROBES if (HAVE_KPROBES)
606576ce 20 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
1fe53268 21 select HAVE_GENERIC_DMA_COHERENT
e7db7b42
AT
22 select HAVE_KERNEL_GZIP
23 select HAVE_KERNEL_LZO
7ada189f
JI
24 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
1da177e4
LT
26 help
27 The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a 28 licensed by ARM Ltd and targeted at embedded applications and
1da177e4 29 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a 30 manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4
LT
31 Europe. There is an ARM Linux project with a web page at
32 <http://www.arm.linux.org.uk/>.
33
1a189b97
RK
34config HAVE_PWM
35 bool
36
75e7153a
RB
37config SYS_SUPPORTS_APM_EMULATION
38 bool
39
0a938b97
DB
40config GENERIC_GPIO
41 bool
0a938b97 42
746140c7
KH
43config GENERIC_TIME
44 bool
746140c7 45
0567a0c0
KH
46config GENERIC_CLOCKEVENTS
47 bool
0567a0c0 48
a8655e83
CM
49config GENERIC_CLOCKEVENTS_BROADCAST
50 bool
51 depends on GENERIC_CLOCKEVENTS
52 default y if SMP && !LOCAL_TIMERS
53
bc581770
LW
54config HAVE_TCM
55 bool
56 select GENERIC_ALLOCATOR
57
e119bfff
RK
58config HAVE_PROC_CPU
59 bool
60
5ea81769
AV
61config NO_IOPORT
62 bool
5ea81769 63
1da177e4
LT
64config EISA
65 bool
66 ---help---
67 The Extended Industry Standard Architecture (EISA) bus was
68 developed as an open alternative to the IBM MicroChannel bus.
69
70 The EISA bus provided some of the features of the IBM MicroChannel
71 bus while maintaining backward compatibility with cards made for
72 the older ISA bus. The EISA bus saw limited use between 1988 and
73 1995 when it was made obsolete by the PCI bus.
74
75 Say Y here if you are building a kernel for an EISA-based machine.
76
77 Otherwise, say N.
78
79config SBUS
80 bool
81
82config MCA
83 bool
84 help
85 MicroChannel Architecture is found in some IBM PS/2 machines and
86 laptops. It is a bus system similar to PCI or ISA. See
87 <file:Documentation/mca.txt> (and especially the web page given
88 there) before attempting to build an MCA bus kernel.
89
4a2581a0
TG
90config GENERIC_HARDIRQS
91 bool
92 default y
93
f16fb1ec
RK
94config STACKTRACE_SUPPORT
95 bool
96 default y
97
f76e9154
NP
98config HAVE_LATENCYTOP_SUPPORT
99 bool
100 depends on !SMP
101 default y
102
f16fb1ec
RK
103config LOCKDEP_SUPPORT
104 bool
105 default y
106
7ad1bcb2
RK
107config TRACE_IRQFLAGS_SUPPORT
108 bool
109 default y
110
4a2581a0
TG
111config HARDIRQS_SW_RESEND
112 bool
113 default y
114
115config GENERIC_IRQ_PROBE
116 bool
117 default y
118
95c354fe
NP
119config GENERIC_LOCKBREAK
120 bool
121 default y
122 depends on SMP && PREEMPT
123
1da177e4
LT
124config RWSEM_GENERIC_SPINLOCK
125 bool
126 default y
127
128config RWSEM_XCHGADD_ALGORITHM
129 bool
130
f0d1b0b3
DH
131config ARCH_HAS_ILOG2_U32
132 bool
f0d1b0b3
DH
133
134config ARCH_HAS_ILOG2_U64
135 bool
f0d1b0b3 136
89c52ed4
BD
137config ARCH_HAS_CPUFREQ
138 bool
139 help
140 Internal node to signify that the ARCH has CPUFREQ support
141 and that the relevant menu configurations are displayed for
142 it.
143
b89c3b16
AM
144config GENERIC_HWEIGHT
145 bool
146 default y
147
1da177e4
LT
148config GENERIC_CALIBRATE_DELAY
149 bool
150 default y
151
a08b6b79
AV
152config ARCH_MAY_HAVE_PC_FDC
153 bool
154
5ac6da66
CL
155config ZONE_DMA
156 bool
5ac6da66 157
ccd7ab7f
FT
158config NEED_DMA_MAP_STATE
159 def_bool y
160
1da177e4
LT
161config GENERIC_ISA_DMA
162 bool
163
1da177e4
LT
164config FIQ
165 bool
166
034d2f5a
AV
167config ARCH_MTD_XIP
168 bool
169
60a752ef 170config GENERIC_HARDIRQS_NO__DO_IRQ
60a752ef
PZ
171 def_bool y
172
d6d502fa
KK
173config ARM_L1_CACHE_SHIFT_6
174 bool
175 help
176 Setting ARM L1 cache line size to 64 Bytes.
177
c0ffa3a9
MD
178if OPROFILE
179
180config OPROFILE_ARMV6
181 def_bool y
182 depends on CPU_V6 && !SMP
183 select OPROFILE_ARM11_CORE
184
185config OPROFILE_MPCORE
186 def_bool y
187 depends on CPU_V6 && SMP
188 select OPROFILE_ARM11_CORE
189
190config OPROFILE_ARM11_CORE
191 bool
192
d7ac4e28
JP
193config OPROFILE_ARMV7
194 def_bool y
195 depends on CPU_V7 && !SMP
196 bool
197
c0ffa3a9
MD
198endif
199
c760fc19
HC
200config VECTORS_BASE
201 hex
6afd6fae 202 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
c760fc19
HC
203 default DRAM_BASE if REMAP_VECTORS_TO_RAM
204 default 0x00000000
205 help
206 The base address of exception vectors.
207
1da177e4
LT
208source "init/Kconfig"
209
dc52ddc0
MH
210source "kernel/Kconfig.freezer"
211
1da177e4
LT
212menu "System Type"
213
3c427975
HC
214config MMU
215 bool "MMU-based Paged Memory Management Support"
216 default y
217 help
218 Select if you want MMU-based virtualised addressing space
219 support by paged memory management. If unsure, say 'Y'.
220
ccf50e23
RK
221#
222# The "ARM system type" choice list is ordered alphabetically by option
223# text. Please add new entries in the option alphabetic order.
224#
1da177e4
LT
225choice
226 prompt "ARM system type"
6a0e2430 227 default ARCH_VERSATILE
1da177e4 228
4af6fee1
DS
229config ARCH_AAEC2000
230 bool "Agilent AAEC-2000 based"
c750815e 231 select CPU_ARM920T
4af6fee1 232 select ARM_AMBA
9483a578 233 select HAVE_CLK
4af6fee1
DS
234 help
235 This enables support for systems based on the Agilent AAEC-2000
236
237config ARCH_INTEGRATOR
238 bool "ARM Ltd. Integrator family"
239 select ARM_AMBA
89c52ed4 240 select ARCH_HAS_CPUFREQ
9483a578 241 select HAVE_CLK
d72fbdf0 242 select COMMON_CLKDEV
c5a0adb5 243 select ICST
b9cedda2 244 select GENERIC_TIME
13edd86d 245 select GENERIC_CLOCKEVENTS
f4b8b319 246 select PLAT_VERSATILE
4af6fee1
DS
247 help
248 Support for ARM's Integrator platform.
249
250config ARCH_REALVIEW
251 bool "ARM Ltd. RealView family"
252 select ARM_AMBA
9483a578 253 select HAVE_CLK
cf30fb4a 254 select COMMON_CLKDEV
c5a0adb5 255 select ICST
85802afe 256 select GENERIC_TIME
ae30ceac 257 select GENERIC_CLOCKEVENTS
eb7fffa3 258 select ARCH_WANT_OPTIONAL_GPIOLIB
f4b8b319 259 select PLAT_VERSATILE
e3887714 260 select ARM_TIMER_SP804
4af6fee1
DS
261 help
262 This enables support for ARM Ltd RealView boards.
263
264config ARCH_VERSATILE
265 bool "ARM Ltd. Versatile family"
266 select ARM_AMBA
267 select ARM_VIC
9483a578 268 select HAVE_CLK
71a06da0 269 select COMMON_CLKDEV
c5a0adb5 270 select ICST
b49c87c2 271 select GENERIC_TIME
89df1272 272 select GENERIC_CLOCKEVENTS
bbeddc43 273 select ARCH_WANT_OPTIONAL_GPIOLIB
f4b8b319 274 select PLAT_VERSATILE
e3887714 275 select ARM_TIMER_SP804
4af6fee1
DS
276 help
277 This enables support for ARM Ltd Versatile board.
278
ceade897
RK
279config ARCH_VEXPRESS
280 bool "ARM Ltd. Versatile Express family"
281 select ARCH_WANT_OPTIONAL_GPIOLIB
282 select ARM_AMBA
283 select ARM_TIMER_SP804
284 select COMMON_CLKDEV
285 select GENERIC_CLOCKEVENTS
286 select GENERIC_TIME
287 select HAVE_CLK
288 select ICST
289 select PLAT_VERSATILE
290 help
291 This enables support for the ARM Ltd Versatile Express boards.
292
8fc5ffa0
AV
293config ARCH_AT91
294 bool "Atmel AT91"
0a938b97 295 select GENERIC_GPIO
f373e8c0 296 select ARCH_REQUIRE_GPIOLIB
93686ae8 297 select HAVE_CLK
4af6fee1 298 help
2b3b3516
AV
299 This enables support for systems based on the Atmel AT91RM9200,
300 AT91SAM9 and AT91CAP9 processors.
4af6fee1 301
ccf50e23
RK
302config ARCH_BCMRING
303 bool "Broadcom BCMRING"
304 depends on MMU
305 select CPU_V6
306 select ARM_AMBA
307 select COMMON_CLKDEV
308 select GENERIC_TIME
309 select GENERIC_CLOCKEVENTS
310 select ARCH_WANT_OPTIONAL_GPIOLIB
311 help
312 Support for Broadcom's BCMRing platform.
313
1da177e4 314config ARCH_CLPS711X
4af6fee1 315 bool "Cirrus Logic CLPS711x/EP721x-based"
c750815e 316 select CPU_ARM720T
f999b8bd
MM
317 help
318 Support for Cirrus Logic 711x/721x based boards.
1da177e4 319
788c9700
RK
320config ARCH_GEMINI
321 bool "Cortina Systems Gemini"
322 select CPU_FA526
323 select GENERIC_GPIO
324 select ARCH_REQUIRE_GPIOLIB
325 help
326 Support for the Cortina Systems Gemini family SoCs
327
1da177e4
LT
328config ARCH_EBSA110
329 bool "EBSA-110"
c750815e 330 select CPU_SA110
f7e68bbf 331 select ISA
c5eb2a2b 332 select NO_IOPORT
1da177e4
LT
333 help
334 This is an evaluation board for the StrongARM processor available
f6c8965a 335 from Digital. It has limited hardware on-board, including an
1da177e4
LT
336 Ethernet interface, two PCMCIA sockets, two serial ports and a
337 parallel port.
338
e7736d47
LB
339config ARCH_EP93XX
340 bool "EP93xx-based"
c750815e 341 select CPU_ARM920T
e7736d47
LB
342 select ARM_AMBA
343 select ARM_VIC
4e9f9fd5 344 select GENERIC_GPIO
9483a578 345 select HAVE_CLK
ae696fd5 346 select COMMON_CLKDEV
7444a72e 347 select ARCH_REQUIRE_GPIOLIB
eb33575c 348 select ARCH_HAS_HOLES_MEMORYMODEL
e7736d47
LB
349 help
350 This enables support for the Cirrus EP93xx series of CPUs.
351
1da177e4
LT
352config ARCH_FOOTBRIDGE
353 bool "FootBridge"
c750815e 354 select CPU_SA110
1da177e4 355 select FOOTBRIDGE
f999b8bd
MM
356 help
357 Support for systems based on the DC21285 companion chip
358 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 359
788c9700
RK
360config ARCH_MXC
361 bool "Freescale MXC/iMX-based"
362 select GENERIC_TIME
363 select GENERIC_CLOCKEVENTS
788c9700 364 select ARCH_REQUIRE_GPIOLIB
a2ab67fa 365 select HAVE_CLK
03e09cd8 366 select COMMON_CLKDEV
788c9700
RK
367 help
368 Support for Freescale MXC/iMX-based family of processors
369
7bd0f2f5 370config ARCH_STMP3XXX
371 bool "Freescale STMP3xxx"
372 select CPU_ARM926T
373 select HAVE_CLK
374 select COMMON_CLKDEV
375 select ARCH_REQUIRE_GPIOLIB
376 select GENERIC_TIME
377 select GENERIC_CLOCKEVENTS
378 select GENERIC_GPIO
379 select USB_ARCH_HAS_EHCI
380 help
381 Support for systems based on the Freescale 3xxx CPUs.
382
4af6fee1
DS
383config ARCH_NETX
384 bool "Hilscher NetX based"
c750815e 385 select CPU_ARM926T
4af6fee1 386 select ARM_VIC
2fcfe6b8 387 select GENERIC_CLOCKEVENTS
21edecd3 388 select GENERIC_TIME
f999b8bd 389 help
4af6fee1
DS
390 This enables support for systems based on the Hilscher NetX Soc
391
392config ARCH_H720X
393 bool "Hynix HMS720x-based"
c750815e 394 select CPU_ARM720T
4af6fee1
DS
395 select ISA_DMA_API
396 help
397 This enables support for systems based on the Hynix HMS720x
398
3b938be6
RK
399config ARCH_IOP13XX
400 bool "IOP13xx-based"
401 depends on MMU
c750815e 402 select CPU_XSC3
3b938be6
RK
403 select PLAT_IOP
404 select PCI
405 select ARCH_SUPPORTS_MSI
8d5796d2 406 select VMSPLIT_1G
3b938be6
RK
407 help
408 Support for Intel's IOP13XX (XScale) family of processors.
409
3f7e5815
LB
410config ARCH_IOP32X
411 bool "IOP32x-based"
a4f7e763 412 depends on MMU
c750815e 413 select CPU_XSCALE
7ae1f7ec 414 select PLAT_IOP
f7e68bbf 415 select PCI
63f385cd 416 select GENERIC_GPIO
bb2b180c 417 select ARCH_REQUIRE_GPIOLIB
f999b8bd 418 help
3f7e5815
LB
419 Support for Intel's 80219 and IOP32X (XScale) family of
420 processors.
421
422config ARCH_IOP33X
423 bool "IOP33x-based"
424 depends on MMU
c750815e 425 select CPU_XSCALE
7ae1f7ec 426 select PLAT_IOP
3f7e5815 427 select PCI
63f385cd 428 select GENERIC_GPIO
bb2b180c 429 select ARCH_REQUIRE_GPIOLIB
3f7e5815
LB
430 help
431 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 432
3b938be6
RK
433config ARCH_IXP23XX
434 bool "IXP23XX-based"
a4f7e763 435 depends on MMU
c750815e 436 select CPU_XSC3
3b938be6 437 select PCI
f999b8bd 438 help
3b938be6 439 Support for Intel's IXP23xx (XScale) family of processors.
1da177e4
LT
440
441config ARCH_IXP2000
442 bool "IXP2400/2800-based"
a4f7e763 443 depends on MMU
c750815e 444 select CPU_XSCALE
f7e68bbf 445 select PCI
f999b8bd
MM
446 help
447 Support for Intel's IXP2400/2800 (XScale) family of processors.
1da177e4 448
3b938be6
RK
449config ARCH_IXP4XX
450 bool "IXP4xx-based"
a4f7e763 451 depends on MMU
c750815e 452 select CPU_XSCALE
8858e9af 453 select GENERIC_GPIO
3b938be6
RK
454 select GENERIC_TIME
455 select GENERIC_CLOCKEVENTS
485bdde7 456 select DMABOUNCE if PCI
c4713074 457 help
3b938be6 458 Support for Intel's IXP4XX (XScale) family of processors.
c4713074 459
1da177e4
LT
460config ARCH_L7200
461 bool "LinkUp-L7200"
c750815e 462 select CPU_ARM720T
1da177e4
LT
463 select FIQ
464 help
465 Say Y here if you intend to run this kernel on a LinkUp Systems
466 L7200 Software Development Board which uses an ARM720T processor.
467 Information on this board can be obtained at:
468
469 <http://www.linkupsys.com/>
470
471 If you have any questions or comments about the Linux kernel port
472 to this board, send e-mail to <sjhill@cotw.com>.
473
edabd38e
SB
474config ARCH_DOVE
475 bool "Marvell Dove"
476 select PCI
477 select GENERIC_GPIO
478 select ARCH_REQUIRE_GPIOLIB
479 select GENERIC_TIME
480 select GENERIC_CLOCKEVENTS
481 select PLAT_ORION
482 help
483 Support for the Marvell Dove SoC 88AP510
484
651c74c7
SB
485config ARCH_KIRKWOOD
486 bool "Marvell Kirkwood"
c750815e 487 select CPU_FEROCEON
651c74c7 488 select PCI
4c213430 489 select GENERIC_GPIO
a8865655 490 select ARCH_REQUIRE_GPIOLIB
651c74c7
SB
491 select GENERIC_TIME
492 select GENERIC_CLOCKEVENTS
493 select PLAT_ORION
494 help
495 Support for the following Marvell Kirkwood series SoCs:
496 88F6180, 88F6192 and 88F6281.
497
777f9beb
LB
498config ARCH_LOKI
499 bool "Marvell Loki (88RC8480)"
c750815e 500 select CPU_FEROCEON
777f9beb
LB
501 select GENERIC_TIME
502 select GENERIC_CLOCKEVENTS
503 select PLAT_ORION
504 help
505 Support for the Marvell Loki (88RC8480) SoC.
506
794d15b2
SS
507config ARCH_MV78XX0
508 bool "Marvell MV78xx0"
c750815e 509 select CPU_FEROCEON
794d15b2 510 select PCI
b95a13d7 511 select GENERIC_GPIO
a8865655 512 select ARCH_REQUIRE_GPIOLIB
794d15b2
SS
513 select GENERIC_TIME
514 select GENERIC_CLOCKEVENTS
515 select PLAT_ORION
516 help
517 Support for the following Marvell MV78xx0 series SoCs:
518 MV781x0, MV782x0.
519
9dd0b194 520config ARCH_ORION5X
585cf175
TP
521 bool "Marvell Orion"
522 depends on MMU
c750815e 523 select CPU_FEROCEON
038ee083 524 select PCI
01af72e4 525 select GENERIC_GPIO
a8865655 526 select ARCH_REQUIRE_GPIOLIB
51cbff1d
TP
527 select GENERIC_TIME
528 select GENERIC_CLOCKEVENTS
69b02f6a 529 select PLAT_ORION
585cf175 530 help
9dd0b194 531 Support for the following Marvell Orion 5x series SoCs:
d2b2a6bb 532 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
d323ade1 533 Orion-2 (5281), Orion-1-90 (6183).
585cf175 534
788c9700 535config ARCH_MMP
2f7e8fae 536 bool "Marvell PXA168/910/MMP2"
788c9700
RK
537 depends on MMU
538 select GENERIC_GPIO
539 select ARCH_REQUIRE_GPIOLIB
540 select HAVE_CLK
541 select COMMON_CLKDEV
542 select GENERIC_TIME
543 select GENERIC_CLOCKEVENTS
544 select TICK_ONESHOT
545 select PLAT_PXA
546 help
2f7e8fae 547 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
788c9700
RK
548
549config ARCH_KS8695
550 bool "Micrel/Kendin KS8695"
551 select CPU_ARM922T
552 select GENERIC_GPIO
553 select ARCH_REQUIRE_GPIOLIB
554 help
555 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
556 System-on-Chip devices.
557
558config ARCH_NS9XXX
559 bool "NetSilicon NS9xxx"
560 select CPU_ARM926T
561 select GENERIC_GPIO
562 select GENERIC_TIME
563 select GENERIC_CLOCKEVENTS
564 select HAVE_CLK
565 help
566 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
567 System.
568
569 <http://www.digi.com/products/microprocessors/index.jsp>
570
571config ARCH_W90X900
572 bool "Nuvoton W90X900 CPU"
573 select CPU_ARM926T
c52d3d68 574 select ARCH_REQUIRE_GPIOLIB
575 select GENERIC_GPIO
d2c24195 576 select HAVE_CLK
0e4a34bb 577 select COMMON_CLKDEV
58b5369e 578 select GENERIC_TIME
579 select GENERIC_CLOCKEVENTS
788c9700 580 help
a8bc4ead 581 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
582 At present, the w90x900 has been renamed nuc900, regarding
583 the ARM series product line, you can login the following
584 link address to know more.
585
586 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
587 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
788c9700 588
a62e9030 589config ARCH_NUC93X
590 bool "Nuvoton NUC93X CPU"
591 select CPU_ARM926T
592 select HAVE_CLK
593 select COMMON_CLKDEV
594 help
595 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
596 low-power and high performance MPEG-4/JPEG multimedia controller chip.
597
4af6fee1
DS
598config ARCH_PNX4008
599 bool "Philips Nexperia PNX4008 Mobile"
c750815e 600 select CPU_ARM926T
9483a578 601 select HAVE_CLK
6985a5ad 602 select COMMON_CLKDEV
4af6fee1
DS
603 help
604 This enables support for Philips PNX4008 mobile platform.
605
1da177e4 606config ARCH_PXA
2c8086a5 607 bool "PXA2xx/PXA3xx-based"
a4f7e763 608 depends on MMU
034d2f5a 609 select ARCH_MTD_XIP
89c52ed4 610 select ARCH_HAS_CPUFREQ
0a938b97 611 select GENERIC_GPIO
9483a578 612 select HAVE_CLK
8c3abc7d 613 select COMMON_CLKDEV
7444a72e 614 select ARCH_REQUIRE_GPIOLIB
45cf5eef 615 select GENERIC_TIME
981d0f39 616 select GENERIC_CLOCKEVENTS
a88264c2 617 select TICK_ONESHOT
bd5ce433 618 select PLAT_PXA
f999b8bd 619 help
2c8086a5 620 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
1da177e4 621
788c9700
RK
622config ARCH_MSM
623 bool "Qualcomm MSM"
624 select CPU_V6
49cbe786
EM
625 select GENERIC_TIME
626 select GENERIC_CLOCKEVENTS
49cbe786 627 help
788c9700
RK
628 Support for Qualcomm MSM7K based systems. This runs on the ARM11
629 apps processor of the MSM7K and depends on a shared memory
630 interface to the ARM9 modem processor which runs the baseband stack
631 and controls some vital subsystems (clock and power control, etc).
49cbe786 632
c793c1b0
MD
633config ARCH_SHMOBILE
634 bool "Renesas SH-Mobile"
635 help
636 Support for Renesas's SH-Mobile ARM platforms
637
1da177e4
LT
638config ARCH_RPC
639 bool "RiscPC"
640 select ARCH_ACORN
641 select FIQ
642 select TIMER_ACORN
a08b6b79 643 select ARCH_MAY_HAVE_PC_FDC
341eb781 644 select HAVE_PATA_PLATFORM
065909b9 645 select ISA_DMA_API
5ea81769 646 select NO_IOPORT
07f841b7 647 select ARCH_SPARSEMEM_ENABLE
1da177e4
LT
648 help
649 On the Acorn Risc-PC, Linux can support the internal IDE disk and
650 CD-ROM interface, serial and parallel port, and the floppy drive.
651
652config ARCH_SA1100
653 bool "SA1100-based"
c750815e 654 select CPU_SA1100
f7e68bbf 655 select ISA
05944d74 656 select ARCH_SPARSEMEM_ENABLE
034d2f5a 657 select ARCH_MTD_XIP
89c52ed4 658 select ARCH_HAS_CPUFREQ
1937f5b9 659 select CPU_FREQ
0a938b97 660 select GENERIC_GPIO
d142b6e7 661 select GENERIC_TIME
3e238be2 662 select GENERIC_CLOCKEVENTS
9483a578 663 select HAVE_CLK
3e238be2 664 select TICK_ONESHOT
7444a72e 665 select ARCH_REQUIRE_GPIOLIB
f999b8bd
MM
666 help
667 Support for StrongARM 11x0 based boards.
1da177e4
LT
668
669config ARCH_S3C2410
e4d06e39 670 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
0a938b97 671 select GENERIC_GPIO
9d56c02a 672 select ARCH_HAS_CPUFREQ
9483a578 673 select HAVE_CLK
1da177e4
LT
674 help
675 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
676 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
f6c8965a 677 the Samsung SMDK2410 development board (and derivatives).
1da177e4 678
a08ab637
BD
679config ARCH_S3C64XX
680 bool "Samsung S3C64XX"
89f1fa08 681 select PLAT_SAMSUNG
89f0ce72 682 select CPU_V6
a08ab637 683 select GENERIC_GPIO
89f0ce72 684 select ARM_VIC
a08ab637 685 select HAVE_CLK
89f0ce72 686 select NO_IOPORT
89c52ed4 687 select ARCH_HAS_CPUFREQ
89f0ce72
BD
688 select ARCH_REQUIRE_GPIOLIB
689 select SAMSUNG_CLKSRC
690 select SAMSUNG_IRQ_VIC_TIMER
691 select SAMSUNG_IRQ_UART
692 select S3C_GPIO_TRACK
693 select S3C_GPIO_PULL_UPDOWN
694 select S3C_GPIO_CFG_S3C24XX
695 select S3C_GPIO_CFG_S3C64XX
696 select S3C_DEV_NAND
697 select USB_ARCH_HAS_OHCI
698 select SAMSUNG_GPIOLIB_4BIT
a08ab637
BD
699 help
700 Samsung S3C64XX series based systems
701
c4ffccdd
KK
702config ARCH_S5P6440
703 bool "Samsung S5P6440"
704 select CPU_V6
705 select GENERIC_GPIO
706 select HAVE_CLK
707 help
708 Samsung S5P6440 CPU based systems
709
550db7f1
KK
710config ARCH_S5P6442
711 bool "Samsung S5P6442"
712 select CPU_V6
713 select GENERIC_GPIO
714 select HAVE_CLK
715 help
716 Samsung S5P6442 CPU based systems
717
5a7652f2
BM
718config ARCH_S5PC1XX
719 bool "Samsung S5PC1XX"
720 select GENERIC_GPIO
721 select HAVE_CLK
722 select CPU_V7
d6d502fa 723 select ARM_L1_CACHE_SHIFT_6
5a7652f2
BM
724 help
725 Samsung S5PC1XX series based systems
726
170f4e42
KK
727config ARCH_S5PV210
728 bool "Samsung S5PV210/S5PC110"
729 select CPU_V7
730 select GENERIC_GPIO
731 select HAVE_CLK
732 select ARM_L1_CACHE_SHIFT_6
733 help
734 Samsung S5PV210/S5PC110 series based systems
735
1da177e4
LT
736config ARCH_SHARK
737 bool "Shark"
c750815e 738 select CPU_SA110
f7e68bbf
RK
739 select ISA
740 select ISA_DMA
3bca103a 741 select ZONE_DMA
f7e68bbf 742 select PCI
f999b8bd
MM
743 help
744 Support for the StrongARM based Digital DNARD machine, also known
745 as "Shark" (<http://www.shark-linux.de/shark.html>).
1da177e4
LT
746
747config ARCH_LH7A40X
748 bool "Sharp LH7A40X"
c750815e 749 select CPU_ARM922T
4ba3f7c5
RK
750 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
751 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
1da177e4
LT
752 help
753 Say Y here for systems based on one of the Sharp LH7A40X
754 System on a Chip processors. These CPUs include an ARM922T
755 core with a wide array of integrated devices for
756 hand-held and low-power applications.
757
d98aac75
LW
758config ARCH_U300
759 bool "ST-Ericsson U300 Series"
760 depends on MMU
761 select CPU_ARM926T
bc581770 762 select HAVE_TCM
d98aac75
LW
763 select ARM_AMBA
764 select ARM_VIC
765 select GENERIC_TIME
766 select GENERIC_CLOCKEVENTS
767 select HAVE_CLK
768 select COMMON_CLKDEV
769 select GENERIC_GPIO
770 help
771 Support for ST-Ericsson U300 series mobile platforms.
772
ccf50e23
RK
773config ARCH_U8500
774 bool "ST-Ericsson U8500 Series"
775 select CPU_V7
776 select ARM_AMBA
777 select GENERIC_TIME
778 select GENERIC_CLOCKEVENTS
779 select COMMON_CLKDEV
780 help
781 Support for ST-Ericsson's Ux500 architecture
782
783config ARCH_NOMADIK
784 bool "STMicroelectronics Nomadik"
785 select ARM_AMBA
786 select ARM_VIC
787 select CPU_ARM926T
788 select HAVE_CLK
789 select COMMON_CLKDEV
790 select GENERIC_TIME
791 select GENERIC_CLOCKEVENTS
792 select GENERIC_GPIO
793 select ARCH_REQUIRE_GPIOLIB
794 help
795 Support for the Nomadik platform by ST-Ericsson
796
7c6337e2
KH
797config ARCH_DAVINCI
798 bool "TI DaVinci"
c750815e 799 select CPU_ARM926T
7c6337e2
KH
800 select GENERIC_TIME
801 select GENERIC_CLOCKEVENTS
3d9edf09 802 select GENERIC_GPIO
dce1115b 803 select ARCH_REQUIRE_GPIOLIB
9483a578 804 select HAVE_CLK
3bca103a 805 select ZONE_DMA
9232fcc9 806 select HAVE_IDE
c5b736d0 807 select COMMON_CLKDEV
20e9969b 808 select GENERIC_ALLOCATOR
ae88e05a 809 select ARCH_HAS_HOLES_MEMORYMODEL
7c6337e2
KH
810 help
811 Support for TI's DaVinci platform.
812
3b938be6
RK
813config ARCH_OMAP
814 bool "TI OMAP"
815 select GENERIC_GPIO
9483a578 816 select HAVE_CLK
7444a72e 817 select ARCH_REQUIRE_GPIOLIB
89c52ed4 818 select ARCH_HAS_CPUFREQ
3b938be6 819 select GENERIC_TIME
06cad098 820 select GENERIC_CLOCKEVENTS
9af915da 821 select ARCH_HAS_HOLES_MEMORYMODEL
3b938be6
RK
822 help
823 Support for TI's OMAP platform (OMAP1 and OMAP2).
824
1da177e4
LT
825endchoice
826
ccf50e23
RK
827#
828# This is sorted alphabetically by mach-* pathname. However, plat-*
829# Kconfigs may be included either alphabetically (according to the
830# plat- suffix) or along side the corresponding mach-* source.
831#
95b8f20f
RK
832source "arch/arm/mach-aaec2000/Kconfig"
833
834source "arch/arm/mach-at91/Kconfig"
835
836source "arch/arm/mach-bcmring/Kconfig"
837
1da177e4
LT
838source "arch/arm/mach-clps711x/Kconfig"
839
95b8f20f
RK
840source "arch/arm/mach-davinci/Kconfig"
841
842source "arch/arm/mach-dove/Kconfig"
843
e7736d47
LB
844source "arch/arm/mach-ep93xx/Kconfig"
845
1da177e4
LT
846source "arch/arm/mach-footbridge/Kconfig"
847
59d3a193
PZ
848source "arch/arm/mach-gemini/Kconfig"
849
95b8f20f
RK
850source "arch/arm/mach-h720x/Kconfig"
851
1da177e4
LT
852source "arch/arm/mach-integrator/Kconfig"
853
3f7e5815
LB
854source "arch/arm/mach-iop32x/Kconfig"
855
856source "arch/arm/mach-iop33x/Kconfig"
1da177e4 857
285f5fa7
DW
858source "arch/arm/mach-iop13xx/Kconfig"
859
1da177e4
LT
860source "arch/arm/mach-ixp4xx/Kconfig"
861
862source "arch/arm/mach-ixp2000/Kconfig"
863
c4713074
LB
864source "arch/arm/mach-ixp23xx/Kconfig"
865
95b8f20f
RK
866source "arch/arm/mach-kirkwood/Kconfig"
867
868source "arch/arm/mach-ks8695/Kconfig"
869
870source "arch/arm/mach-lh7a40x/Kconfig"
871
777f9beb
LB
872source "arch/arm/mach-loki/Kconfig"
873
95b8f20f
RK
874source "arch/arm/mach-msm/Kconfig"
875
794d15b2
SS
876source "arch/arm/mach-mv78xx0/Kconfig"
877
95b8f20f 878source "arch/arm/plat-mxc/Kconfig"
1da177e4 879
95b8f20f 880source "arch/arm/mach-netx/Kconfig"
49cbe786 881
95b8f20f
RK
882source "arch/arm/mach-nomadik/Kconfig"
883source "arch/arm/plat-nomadik/Kconfig"
884
885source "arch/arm/mach-ns9xxx/Kconfig"
1da177e4 886
186f93ea 887source "arch/arm/mach-nuc93x/Kconfig"
1da177e4 888
d48af15e
TL
889source "arch/arm/plat-omap/Kconfig"
890
891source "arch/arm/mach-omap1/Kconfig"
1da177e4 892
1dbae815
TL
893source "arch/arm/mach-omap2/Kconfig"
894
9dd0b194 895source "arch/arm/mach-orion5x/Kconfig"
585cf175 896
95b8f20f
RK
897source "arch/arm/mach-pxa/Kconfig"
898source "arch/arm/plat-pxa/Kconfig"
585cf175 899
95b8f20f
RK
900source "arch/arm/mach-mmp/Kconfig"
901
902source "arch/arm/mach-realview/Kconfig"
903
904source "arch/arm/mach-sa1100/Kconfig"
edabd38e 905
cf383678 906source "arch/arm/plat-samsung/Kconfig"
a21765a7 907source "arch/arm/plat-s3c24xx/Kconfig"
c4ffccdd 908source "arch/arm/plat-s5p/Kconfig"
5a7652f2 909source "arch/arm/plat-s5pc1xx/Kconfig"
a21765a7
BD
910
911if ARCH_S3C2410
912source "arch/arm/mach-s3c2400/Kconfig"
1da177e4 913source "arch/arm/mach-s3c2410/Kconfig"
a21765a7
BD
914source "arch/arm/mach-s3c2412/Kconfig"
915source "arch/arm/mach-s3c2440/Kconfig"
e4d06e39 916source "arch/arm/mach-s3c2443/Kconfig"
a21765a7 917endif
1da177e4 918
a08ab637 919if ARCH_S3C64XX
431107ea 920source "arch/arm/mach-s3c64xx/Kconfig"
a08ab637
BD
921endif
922
c4ffccdd
KK
923source "arch/arm/mach-s5p6440/Kconfig"
924
550db7f1 925source "arch/arm/mach-s5p6442/Kconfig"
7bd0f2f5 926
5a7652f2
BM
927if ARCH_S5PC1XX
928source "arch/arm/mach-s5pc100/Kconfig"
929endif
930
170f4e42
KK
931source "arch/arm/mach-s5pv210/Kconfig"
932
882d01f9 933source "arch/arm/mach-shmobile/Kconfig"
52c543f9 934
882d01f9 935source "arch/arm/plat-stmp3xxx/Kconfig"
9e73c84c 936
95b8f20f 937source "arch/arm/mach-u300/Kconfig"
1da177e4 938
95b8f20f 939source "arch/arm/mach-ux500/Kconfig"
1da177e4
LT
940
941source "arch/arm/mach-versatile/Kconfig"
942
ceade897
RK
943source "arch/arm/mach-vexpress/Kconfig"
944
7ec80ddf 945source "arch/arm/mach-w90x900/Kconfig"
946
1da177e4
LT
947# Definitions to make life easier
948config ARCH_ACORN
949 bool
950
7ae1f7ec
LB
951config PLAT_IOP
952 bool
469d3044 953 select GENERIC_CLOCKEVENTS
980f2296 954 select GENERIC_TIME
7ae1f7ec 955
69b02f6a
LB
956config PLAT_ORION
957 bool
958
bd5ce433
EM
959config PLAT_PXA
960 bool
961
f4b8b319
RK
962config PLAT_VERSATILE
963 bool
964
e3887714
RK
965config ARM_TIMER_SP804
966 bool
967
1da177e4
LT
968source arch/arm/mm/Kconfig
969
afe4b25e
LB
970config IWMMXT
971 bool "Enable iWMMXt support"
40305a58
EM
972 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
973 default y if PXA27x || PXA3xx || ARCH_MMP
afe4b25e
LB
974 help
975 Enable support for iWMMXt context switching at run time if
976 running on a CPU that supports it.
977
1da177e4
LT
978# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
979config XSCALE_PMU
980 bool
981 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
982 default y
983
0f4f0672
JI
984config CPU_HAS_PMU
985 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
986 default y
987 bool
988
3b93e7b0
HC
989if !MMU
990source "arch/arm/Kconfig-nommu"
991endif
992
9cba3ccc
CM
993config ARM_ERRATA_411920
994 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
995 depends on CPU_V6 && !SMP
996 help
997 Invalidation of the Instruction Cache operation can
998 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
999 It does not affect the MPCore. This option enables the ARM Ltd.
1000 recommended workaround.
1001
7ce236fc
CM
1002config ARM_ERRATA_430973
1003 bool "ARM errata: Stale prediction on replaced interworking branch"
1004 depends on CPU_V7
1005 help
1006 This option enables the workaround for the 430973 Cortex-A8
1007 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1008 interworking branch is replaced with another code sequence at the
1009 same virtual address, whether due to self-modifying code or virtual
1010 to physical address re-mapping, Cortex-A8 does not recover from the
1011 stale interworking branch prediction. This results in Cortex-A8
1012 executing the new code sequence in the incorrect ARM or Thumb state.
1013 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1014 and also flushes the branch target cache at every context switch.
1015 Note that setting specific bits in the ACTLR register may not be
1016 available in non-secure mode.
1017
855c551f
CM
1018config ARM_ERRATA_458693
1019 bool "ARM errata: Processor deadlock when a false hazard is created"
1020 depends on CPU_V7
1021 help
1022 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1023 erratum. For very specific sequences of memory operations, it is
1024 possible for a hazard condition intended for a cache line to instead
1025 be incorrectly associated with a different cache line. This false
1026 hazard might then cause a processor deadlock. The workaround enables
1027 the L1 caching of the NEON accesses and disables the PLD instruction
1028 in the ACTLR register. Note that setting specific bits in the ACTLR
1029 register may not be available in non-secure mode.
1030
0516e464
CM
1031config ARM_ERRATA_460075
1032 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1033 depends on CPU_V7
1034 help
1035 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1036 erratum. Any asynchronous access to the L2 cache may encounter a
1037 situation in which recent store transactions to the L2 cache are lost
1038 and overwritten with stale memory contents from external memory. The
1039 workaround disables the write-allocate mode for the L2 cache via the
1040 ACTLR register. Note that setting specific bits in the ACTLR register
1041 may not be available in non-secure mode.
1042
9e65582a
SS
1043config PL310_ERRATA_588369
1044 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1045 depends on CACHE_L2X0 && ARCH_OMAP4
1046 help
1047 The PL310 L2 cache controller implements three types of Clean &
1048 Invalidate maintenance operations: by Physical Address
1049 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1050 They are architecturally defined to behave as the execution of a
1051 clean operation followed immediately by an invalidate operation,
1052 both performing to the same memory location. This functionality
1053 is not correctly implemented in PL310 as clean lines are not
1054 invalidated as a result of these operations. Note that this errata
1055 uses Texas Instrument's secure monitor api.
1da177e4
LT
1056endmenu
1057
1058source "arch/arm/common/Kconfig"
1059
1060config FORCE_MAX_ZONEORDER
1061 int
1062 depends on SA1111
1063 default "9"
1064
1065menu "Bus support"
1066
1067config ARM_AMBA
1068 bool
1069
1070config ISA
1071 bool
1da177e4
LT
1072 help
1073 Find out whether you have ISA slots on your motherboard. ISA is the
1074 name of a bus system, i.e. the way the CPU talks to the other stuff
1075 inside your box. Other bus systems are PCI, EISA, MicroChannel
1076 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1077 newer boards don't support it. If you have ISA, say Y, otherwise N.
1078
065909b9 1079# Select ISA DMA controller support
1da177e4
LT
1080config ISA_DMA
1081 bool
065909b9 1082 select ISA_DMA_API
1da177e4 1083
065909b9 1084# Select ISA DMA interface
5cae841b
AV
1085config ISA_DMA_API
1086 bool
5cae841b 1087
1da177e4 1088config PCI
a0113a99 1089 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
1da177e4
LT
1090 help
1091 Find out whether you have a PCI motherboard. PCI is the name of a
1092 bus system, i.e. the way the CPU talks to the other stuff inside
1093 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1094 VESA. If you have PCI, say Y, otherwise N.
1095
36e23590
MW
1096config PCI_SYSCALL
1097 def_bool PCI
1098
1da177e4
LT
1099# Select the host bridge type
1100config PCI_HOST_VIA82C505
1101 bool
1102 depends on PCI && ARCH_SHARK
1103 default y
1104
a0113a99
MR
1105config PCI_HOST_ITE8152
1106 bool
1107 depends on PCI && MACH_ARMCORE
1108 default y
1109 select DMABOUNCE
1110
1da177e4
LT
1111source "drivers/pci/Kconfig"
1112
1113source "drivers/pcmcia/Kconfig"
1114
1115endmenu
1116
1117menu "Kernel Features"
1118
0567a0c0
KH
1119source "kernel/time/Kconfig"
1120
1da177e4
LT
1121config SMP
1122 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
42578c82 1123 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
850265e8 1124 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
bc28248e 1125 depends on GENERIC_CLOCKEVENTS
f6dd9fa5 1126 select USE_GENERIC_SMP_HELPERS
850265e8 1127 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
1da177e4
LT
1128 help
1129 This enables support for systems with more than one CPU. If you have
1130 a system with only one CPU, like most personal computers, say N. If
1131 you have a system with more than one CPU, say Y.
1132
1133 If you say N here, the kernel will run on single and multiprocessor
1134 machines, but will use only one CPU of a multiprocessor machine. If
1135 you say Y here, the kernel will run on many, but not all, single
1136 processor machines. On a single processor machine, the kernel will
1137 run faster if you say N here.
1138
03502faa 1139 See also <file:Documentation/i386/IO-APIC.txt>,
1da177e4
LT
1140 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1141 <http://www.linuxdoc.org/docs.html#howto>.
1142
1143 If you don't know what to do here, say N.
1144
a8cbcd92
RK
1145config HAVE_ARM_SCU
1146 bool
1147 depends on SMP
1148 help
1149 This option enables support for the ARM system coherency unit
1150
f32f4ce2
RK
1151config HAVE_ARM_TWD
1152 bool
1153 depends on SMP
1154 help
1155 This options enables support for the ARM timer and watchdog unit
1156
8d5796d2
LB
1157choice
1158 prompt "Memory split"
1159 default VMSPLIT_3G
1160 help
1161 Select the desired split between kernel and user memory.
1162
1163 If you are not absolutely sure what you are doing, leave this
1164 option alone!
1165
1166 config VMSPLIT_3G
1167 bool "3G/1G user/kernel split"
1168 config VMSPLIT_2G
1169 bool "2G/2G user/kernel split"
1170 config VMSPLIT_1G
1171 bool "1G/3G user/kernel split"
1172endchoice
1173
1174config PAGE_OFFSET
1175 hex
1176 default 0x40000000 if VMSPLIT_1G
1177 default 0x80000000 if VMSPLIT_2G
1178 default 0xC0000000
1179
1da177e4
LT
1180config NR_CPUS
1181 int "Maximum number of CPUs (2-32)"
1182 range 2 32
1183 depends on SMP
1184 default "4"
1185
a054a811
RK
1186config HOTPLUG_CPU
1187 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1188 depends on SMP && HOTPLUG && EXPERIMENTAL
1189 help
1190 Say Y here to experiment with turning CPUs off and on. CPUs
1191 can be controlled through /sys/devices/system/cpu.
1192
37ee16ae
RK
1193config LOCAL_TIMERS
1194 bool "Use local timer interrupts"
42578c82 1195 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
850265e8 1196 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
37ee16ae 1197 default y
850265e8 1198 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
37ee16ae
RK
1199 help
1200 Enable support for local timers on SMP platforms, rather then the
1201 legacy IPI broadcast method. Local timers allows the system
1202 accounting to be spread across the timer interval, preventing a
1203 "thundering herd" at every timer tick.
1204
d45a398f 1205source kernel/Kconfig.preempt
1da177e4 1206
f8065813
RK
1207config HZ
1208 int
1209 default 128 if ARCH_L7200
170f4e42 1210 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
bfe65704 1211 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
5248c657 1212 default AT91_TIMER_HZ if ARCH_AT91
f8065813
RK
1213 default 100
1214
16c79651
CM
1215config THUMB2_KERNEL
1216 bool "Compile the kernel in Thumb-2 mode"
1217 depends on CPU_V7 && EXPERIMENTAL
1218 select AEABI
1219 select ARM_ASM_UNIFIED
1220 help
1221 By enabling this option, the kernel will be compiled in
1222 Thumb-2 mode. A compiler/assembler that understand the unified
1223 ARM-Thumb syntax is needed.
1224
1225 If unsure, say N.
1226
0becb088
CM
1227config ARM_ASM_UNIFIED
1228 bool
1229
704bdda0
NP
1230config AEABI
1231 bool "Use the ARM EABI to compile the kernel"
1232 help
1233 This option allows for the kernel to be compiled using the latest
1234 ARM ABI (aka EABI). This is only useful if you are using a user
1235 space environment that is also compiled with EABI.
1236
1237 Since there are major incompatibilities between the legacy ABI and
1238 EABI, especially with regard to structure member alignment, this
1239 option also changes the kernel syscall calling convention to
1240 disambiguate both ABIs and allow for backward compatibility support
1241 (selected with CONFIG_OABI_COMPAT).
1242
1243 To use this you need GCC version 4.0.0 or later.
1244
6c90c872 1245config OABI_COMPAT
a73a3ff1 1246 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
61c484d4 1247 depends on AEABI && EXPERIMENTAL
6c90c872
NP
1248 default y
1249 help
1250 This option preserves the old syscall interface along with the
1251 new (ARM EABI) one. It also provides a compatibility layer to
1252 intercept syscalls that have structure arguments which layout
1253 in memory differs between the legacy ABI and the new ARM EABI
1254 (only for non "thumb" binaries). This option adds a tiny
1255 overhead to all syscalls and produces a slightly larger kernel.
1256 If you know you'll be using only pure EABI user space then you
1257 can say N here. If this option is not selected and you attempt
1258 to execute a legacy ABI binary then the result will be
1259 UNPREDICTABLE (in fact it can be predicted that it won't work
1260 at all). If in doubt say Y.
1261
eb33575c 1262config ARCH_HAS_HOLES_MEMORYMODEL
e80d6a24 1263 bool
e80d6a24 1264
07a2f737 1265# Discontigmem is deprecated
3f22ab27 1266config ARCH_DISCONTIGMEM_ENABLE
1da177e4 1267 bool
1da177e4 1268
05944d74
RK
1269config ARCH_SPARSEMEM_ENABLE
1270 bool
1271
07a2f737
RK
1272config ARCH_SPARSEMEM_DEFAULT
1273 def_bool ARCH_SPARSEMEM_ENABLE
1274
05944d74 1275config ARCH_SELECT_MEMORY_MODEL
07a2f737 1276 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
05944d74 1277
c80d79d7
YG
1278config NODES_SHIFT
1279 int
1280 default "4" if ARCH_LH7A40X
1281 default "2"
1282 depends on NEED_MULTIPLE_NODES
1283
053a96ca
NP
1284config HIGHMEM
1285 bool "High Memory Support (EXPERIMENTAL)"
1286 depends on MMU && EXPERIMENTAL
1287 help
1288 The address space of ARM processors is only 4 Gigabytes large
1289 and it has to accommodate user address space, kernel address
1290 space as well as some memory mapped IO. That means that, if you
1291 have a large amount of physical memory and/or IO, not all of the
1292 memory can be "permanently mapped" by the kernel. The physical
1293 memory that is not permanently mapped is called "high memory".
1294
1295 Depending on the selected kernel/user memory split, minimum
1296 vmalloc space and actual amount of RAM, you may not need this
1297 option which should result in a slightly faster kernel.
1298
1299 If unsure, say n.
1300
65cec8e3
RK
1301config HIGHPTE
1302 bool "Allocate 2nd-level pagetables from highmem"
1303 depends on HIGHMEM
1304 depends on !OUTER_CACHE
1305
1b8873a0
JI
1306config HW_PERF_EVENTS
1307 bool "Enable hardware performance counter support for perf events"
796d1295 1308 depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
1b8873a0
JI
1309 default y
1310 help
1311 Enable hardware performance counter support for perf events. If
1312 disabled, perf events will use software events only.
1313
3f22ab27
DH
1314source "mm/Kconfig"
1315
1da177e4
LT
1316config LEDS
1317 bool "Timer and CPU usage LEDs"
e055d5bf 1318 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
8c8fdbc9 1319 ARCH_EBSA285 || ARCH_INTEGRATOR || \
1da177e4
LT
1320 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1321 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
73a59c1c 1322 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
25329671 1323 ARCH_AT91 || ARCH_DAVINCI || \
ff3042fb 1324 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
1da177e4
LT
1325 help
1326 If you say Y here, the LEDs on your machine will be used
1327 to provide useful information about your current system status.
1328
1329 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1330 be able to select which LEDs are active using the options below. If
1331 you are compiling a kernel for the EBSA-110 or the LART however, the
1332 red LED will simply flash regularly to indicate that the system is
1333 still functional. It is safe to say Y here if you have a CATS
1334 system, but the driver will do nothing.
1335
1336config LEDS_TIMER
1337 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
eebdf7d7
DB
1338 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1339 || MACH_OMAP_PERSEUS2
1da177e4 1340 depends on LEDS
0567a0c0 1341 depends on !GENERIC_CLOCKEVENTS
1da177e4
LT
1342 default y if ARCH_EBSA110
1343 help
1344 If you say Y here, one of the system LEDs (the green one on the
1345 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1346 will flash regularly to indicate that the system is still
1347 operational. This is mainly useful to kernel hackers who are
1348 debugging unstable kernels.
1349
1350 The LART uses the same LED for both Timer LED and CPU usage LED
1351 functions. You may choose to use both, but the Timer LED function
1352 will overrule the CPU usage LED.
1353
1354config LEDS_CPU
1355 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
eebdf7d7
DB
1356 !ARCH_OMAP) \
1357 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1358 || MACH_OMAP_PERSEUS2
1da177e4
LT
1359 depends on LEDS
1360 help
1361 If you say Y here, the red LED will be used to give a good real
1362 time indication of CPU usage, by lighting whenever the idle task
1363 is not currently executing.
1364
1365 The LART uses the same LED for both Timer LED and CPU usage LED
1366 functions. You may choose to use both, but the Timer LED function
1367 will overrule the CPU usage LED.
1368
1369config ALIGNMENT_TRAP
1370 bool
f12d0d7c 1371 depends on CPU_CP15_MMU
1da177e4 1372 default y if !ARCH_EBSA110
e119bfff 1373 select HAVE_PROC_CPU if PROC_FS
1da177e4 1374 help
84eb8d06 1375 ARM processors cannot fetch/store information which is not
1da177e4
LT
1376 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1377 address divisible by 4. On 32-bit ARM processors, these non-aligned
1378 fetch/store instructions will be emulated in software if you say
1379 here, which has a severe performance impact. This is necessary for
1380 correct operation of some network protocols. With an IP-only
1381 configuration it is safe to say N, otherwise say Y.
1382
39ec58f3
LB
1383config UACCESS_WITH_MEMCPY
1384 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1385 depends on MMU && EXPERIMENTAL
1386 default y if CPU_FEROCEON
1387 help
1388 Implement faster copy_to_user and clear_user methods for CPU
1389 cores where a 8-word STM instruction give significantly higher
1390 memory write throughput than a sequence of individual 32bit stores.
1391
1392 A possible side effect is a slight increase in scheduling latency
1393 between threads sharing the same address space if they invoke
1394 such copy operations with large buffers.
1395
1396 However, if the CPU data cache is using a write-allocate mode,
1397 this option is unlikely to provide any performance gain.
1398
1da177e4
LT
1399endmenu
1400
1401menu "Boot options"
1402
1403# Compressed boot loader in ROM. Yes, we really want to ask about
1404# TEXT and BSS so we preserve their values in the config files.
1405config ZBOOT_ROM_TEXT
1406 hex "Compressed ROM boot loader base address"
1407 default "0"
1408 help
1409 The physical address at which the ROM-able zImage is to be
1410 placed in the target. Platforms which normally make use of
1411 ROM-able zImage formats normally set this to a suitable
1412 value in their defconfig file.
1413
1414 If ZBOOT_ROM is not enabled, this has no effect.
1415
1416config ZBOOT_ROM_BSS
1417 hex "Compressed ROM boot loader BSS address"
1418 default "0"
1419 help
f8c440b2
DF
1420 The base address of an area of read/write memory in the target
1421 for the ROM-able zImage which must be available while the
1422 decompressor is running. It must be large enough to hold the
1423 entire decompressed kernel plus an additional 128 KiB.
1424 Platforms which normally make use of ROM-able zImage formats
1425 normally set this to a suitable value in their defconfig file.
1da177e4
LT
1426
1427 If ZBOOT_ROM is not enabled, this has no effect.
1428
1429config ZBOOT_ROM
1430 bool "Compressed boot loader in ROM/flash"
1431 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1432 help
1433 Say Y here if you intend to execute your compressed kernel image
1434 (zImage) directly from ROM or flash. If unsure, say N.
1435
1436config CMDLINE
1437 string "Default kernel command string"
1438 default ""
1439 help
1440 On some architectures (EBSA110 and CATS), there is currently no way
1441 for the boot loader to pass arguments to the kernel. For these
1442 architectures, you should supply some command-line options at build
1443 time by entering them here. As a minimum, you should specify the
1444 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1445
1446config XIP_KERNEL
1447 bool "Kernel Execute-In-Place from ROM"
1448 depends on !ZBOOT_ROM
1449 help
1450 Execute-In-Place allows the kernel to run from non-volatile storage
1451 directly addressable by the CPU, such as NOR flash. This saves RAM
1452 space since the text section of the kernel is not loaded from flash
1453 to RAM. Read-write sections, such as the data section and stack,
1454 are still copied to RAM. The XIP kernel is not compressed since
1455 it has to run directly from flash, so it will take more space to
1456 store it. The flash address used to link the kernel object files,
1457 and for storing it, is configuration dependent. Therefore, if you
1458 say Y here, you must know the proper physical address where to
1459 store the kernel image depending on your own flash memory usage.
1460
1461 Also note that the make target becomes "make xipImage" rather than
1462 "make zImage" or "make Image". The final kernel binary to put in
1463 ROM memory will be arch/arm/boot/xipImage.
1464
1465 If unsure, say N.
1466
1467config XIP_PHYS_ADDR
1468 hex "XIP Kernel Physical Location"
1469 depends on XIP_KERNEL
1470 default "0x00080000"
1471 help
1472 This is the physical address in your flash memory the kernel will
1473 be linked for and stored to. This address is dependent on your
1474 own flash usage.
1475
c587e4a6
RP
1476config KEXEC
1477 bool "Kexec system call (EXPERIMENTAL)"
1478 depends on EXPERIMENTAL
1479 help
1480 kexec is a system call that implements the ability to shutdown your
1481 current kernel, and to start another kernel. It is like a reboot
01dd2fbf 1482 but it is independent of the system firmware. And like a reboot
c587e4a6
RP
1483 you can start any kernel with it, not just Linux.
1484
1485 It is an ongoing process to be certain the hardware in a machine
1486 is properly shutdown, so do not be surprised if this code does not
1487 initially work for you. It may help to enable device hotplugging
1488 support.
1489
4cd9d6f7
RP
1490config ATAGS_PROC
1491 bool "Export atags in procfs"
b98d7291
UL
1492 depends on KEXEC
1493 default y
4cd9d6f7
RP
1494 help
1495 Should the atags used to boot the kernel be exported in an "atags"
1496 file in procfs. Useful with kexec.
1497
1da177e4
LT
1498endmenu
1499
ac9d7efc 1500menu "CPU Power Management"
1da177e4 1501
89c52ed4 1502if ARCH_HAS_CPUFREQ
1da177e4
LT
1503
1504source "drivers/cpufreq/Kconfig"
1505
1506config CPU_FREQ_SA1100
1507 bool
1da177e4
LT
1508
1509config CPU_FREQ_SA1110
1510 bool
1da177e4
LT
1511
1512config CPU_FREQ_INTEGRATOR
1513 tristate "CPUfreq driver for ARM Integrator CPUs"
1514 depends on ARCH_INTEGRATOR && CPU_FREQ
1515 default y
1516 help
1517 This enables the CPUfreq driver for ARM Integrator CPUs.
1518
1519 For details, take a look at <file:Documentation/cpu-freq>.
1520
1521 If in doubt, say Y.
1522
9e2697ff
RK
1523config CPU_FREQ_PXA
1524 bool
1525 depends on CPU_FREQ && ARCH_PXA && PXA25x
1526 default y
1527 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1528
b3748ddd
MB
1529config CPU_FREQ_S3C64XX
1530 bool "CPUfreq support for Samsung S3C64XX CPUs"
1531 depends on CPU_FREQ && CPU_S3C6410
1532
9d56c02a
BD
1533config CPU_FREQ_S3C
1534 bool
1535 help
1536 Internal configuration node for common cpufreq on Samsung SoC
1537
1538config CPU_FREQ_S3C24XX
1539 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1540 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1541 select CPU_FREQ_S3C
1542 help
1543 This enables the CPUfreq driver for the Samsung S3C24XX family
1544 of CPUs.
1545
1546 For details, take a look at <file:Documentation/cpu-freq>.
1547
1548 If in doubt, say N.
1549
1550config CPU_FREQ_S3C24XX_PLL
1551 bool "Support CPUfreq changing of PLL frequency"
1552 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1553 help
1554 Compile in support for changing the PLL frequency from the
1555 S3C24XX series CPUfreq driver. The PLL takes time to settle
1556 after a frequency change, so by default it is not enabled.
1557
1558 This also means that the PLL tables for the selected CPU(s) will
1559 be built which may increase the size of the kernel image.
1560
1561config CPU_FREQ_S3C24XX_DEBUG
1562 bool "Debug CPUfreq Samsung driver core"
1563 depends on CPU_FREQ_S3C24XX
1564 help
1565 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1566
1567config CPU_FREQ_S3C24XX_IODEBUG
1568 bool "Debug CPUfreq Samsung driver IO timing"
1569 depends on CPU_FREQ_S3C24XX
1570 help
1571 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1572
e6d197a6
BD
1573config CPU_FREQ_S3C24XX_DEBUGFS
1574 bool "Export debugfs for CPUFreq"
1575 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1576 help
1577 Export status information via debugfs.
1578
1da177e4
LT
1579endif
1580
ac9d7efc
RK
1581source "drivers/cpuidle/Kconfig"
1582
1583endmenu
1584
1da177e4
LT
1585menu "Floating point emulation"
1586
1587comment "At least one emulation must be selected"
1588
1589config FPE_NWFPE
1590 bool "NWFPE math emulation"
8993a44c 1591 depends on !AEABI || OABI_COMPAT
1da177e4
LT
1592 ---help---
1593 Say Y to include the NWFPE floating point emulator in the kernel.
1594 This is necessary to run most binaries. Linux does not currently
1595 support floating point hardware so you need to say Y here even if
1596 your machine has an FPA or floating point co-processor podule.
1597
1598 You may say N here if you are going to load the Acorn FPEmulator
1599 early in the bootup.
1600
1601config FPE_NWFPE_XP
1602 bool "Support extended precision"
bedf142b 1603 depends on FPE_NWFPE
1da177e4
LT
1604 help
1605 Say Y to include 80-bit support in the kernel floating-point
1606 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1607 Note that gcc does not generate 80-bit operations by default,
1608 so in most cases this option only enlarges the size of the
1609 floating point emulator without any good reason.
1610
1611 You almost surely want to say N here.
1612
1613config FPE_FASTFPE
1614 bool "FastFPE math emulation (EXPERIMENTAL)"
8993a44c 1615 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1da177e4
LT
1616 ---help---
1617 Say Y here to include the FAST floating point emulator in the kernel.
1618 This is an experimental much faster emulator which now also has full
1619 precision for the mantissa. It does not support any exceptions.
1620 It is very simple, and approximately 3-6 times faster than NWFPE.
1621
1622 It should be sufficient for most programs. It may be not suitable
1623 for scientific calculations, but you have to check this for yourself.
1624 If you do not feel you need a faster FP emulation you should better
1625 choose NWFPE.
1626
1627config VFP
1628 bool "VFP-format floating point maths"
c00d4ffd 1629 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1da177e4
LT
1630 help
1631 Say Y to include VFP support code in the kernel. This is needed
1632 if your hardware includes a VFP unit.
1633
1634 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1635 release notes and additional status information.
1636
1637 Say N if your target does not have VFP hardware.
1638
25ebee02
CM
1639config VFPv3
1640 bool
1641 depends on VFP
1642 default y if CPU_V7
1643
b5872db4
CM
1644config NEON
1645 bool "Advanced SIMD (NEON) Extension support"
1646 depends on VFPv3 && CPU_V7
1647 help
1648 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1649 Extension.
1650
1da177e4
LT
1651endmenu
1652
1653menu "Userspace binary formats"
1654
1655source "fs/Kconfig.binfmt"
1656
1657config ARTHUR
1658 tristate "RISC OS personality"
704bdda0 1659 depends on !AEABI
1da177e4
LT
1660 help
1661 Say Y here to include the kernel code necessary if you want to run
1662 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1663 experimental; if this sounds frightening, say N and sleep in peace.
1664 You can also say M here to compile this support as a module (which
1665 will be called arthur).
1666
1667endmenu
1668
1669menu "Power management options"
1670
eceab4ac 1671source "kernel/power/Kconfig"
1da177e4 1672
f4cb5700
JB
1673config ARCH_SUSPEND_POSSIBLE
1674 def_bool y
1675
1da177e4
LT
1676endmenu
1677
d5950b43
SR
1678source "net/Kconfig"
1679
ac25150f 1680source "drivers/Kconfig"
1da177e4
LT
1681
1682source "fs/Kconfig"
1683
1da177e4
LT
1684source "arch/arm/Kconfig.debug"
1685
1686source "security/Kconfig"
1687
1688source "crypto/Kconfig"
1689
1690source "lib/Kconfig"