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ARM: nomadik: convert sched_clock() to use new infrastructure
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1da177e4
LT
1config ARM
2 bool
3 default y
e17c6d56 4 select HAVE_AOUT
2064c946 5 select HAVE_IDE
2778f620 6 select HAVE_MEMBLOCK
12b824fb 7 select RTC_LIB
75e7153a 8 select SYS_SUPPORTS_APM_EMULATION
d4c7b1f9 9 select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
fe166148 10 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
5cbad0eb 11 select HAVE_ARCH_KGDB
3f550096 12 select HAVE_KPROBES if (!XIP_KERNEL)
9edddaa2 13 select HAVE_KRETPROBES if (HAVE_KPROBES)
606576ce 14 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
80be7a7f
RV
15 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
16 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
0e341af8 17 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
1fe53268 18 select HAVE_GENERIC_DMA_COHERENT
e7db7b42
AT
19 select HAVE_KERNEL_GZIP
20 select HAVE_KERNEL_LZO
6e8699f7 21 select HAVE_KERNEL_LZMA
e360adbe 22 select HAVE_IRQ_WORK
7ada189f
JI
23 select HAVE_PERF_EVENTS
24 select PERF_USE_VMALLOC
e513f8bf 25 select HAVE_REGS_AND_STACK_ACCESS_API
19852e59 26 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
1da177e4
LT
27 help
28 The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a 29 licensed by ARM Ltd and targeted at embedded applications and
1da177e4 30 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a 31 manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4
LT
32 Europe. There is an ARM Linux project with a web page at
33 <http://www.arm.linux.org.uk/>.
34
1a189b97
RK
35config HAVE_PWM
36 bool
37
75e7153a
RB
38config SYS_SUPPORTS_APM_EMULATION
39 bool
40
112f38a4
RK
41config HAVE_SCHED_CLOCK
42 bool
43
0a938b97
DB
44config GENERIC_GPIO
45 bool
0a938b97 46
5cfc8ee0
JS
47config ARCH_USES_GETTIMEOFFSET
48 bool
49 default n
746140c7 50
0567a0c0
KH
51config GENERIC_CLOCKEVENTS
52 bool
0567a0c0 53
a8655e83
CM
54config GENERIC_CLOCKEVENTS_BROADCAST
55 bool
56 depends on GENERIC_CLOCKEVENTS
5388a6b2 57 default y if SMP
a8655e83 58
bc581770
LW
59config HAVE_TCM
60 bool
61 select GENERIC_ALLOCATOR
62
e119bfff
RK
63config HAVE_PROC_CPU
64 bool
65
5ea81769
AV
66config NO_IOPORT
67 bool
5ea81769 68
1da177e4
LT
69config EISA
70 bool
71 ---help---
72 The Extended Industry Standard Architecture (EISA) bus was
73 developed as an open alternative to the IBM MicroChannel bus.
74
75 The EISA bus provided some of the features of the IBM MicroChannel
76 bus while maintaining backward compatibility with cards made for
77 the older ISA bus. The EISA bus saw limited use between 1988 and
78 1995 when it was made obsolete by the PCI bus.
79
80 Say Y here if you are building a kernel for an EISA-based machine.
81
82 Otherwise, say N.
83
84config SBUS
85 bool
86
87config MCA
88 bool
89 help
90 MicroChannel Architecture is found in some IBM PS/2 machines and
91 laptops. It is a bus system similar to PCI or ISA. See
92 <file:Documentation/mca.txt> (and especially the web page given
93 there) before attempting to build an MCA bus kernel.
94
4a2581a0
TG
95config GENERIC_HARDIRQS
96 bool
97 default y
98
f16fb1ec
RK
99config STACKTRACE_SUPPORT
100 bool
101 default y
102
f76e9154
NP
103config HAVE_LATENCYTOP_SUPPORT
104 bool
105 depends on !SMP
106 default y
107
f16fb1ec
RK
108config LOCKDEP_SUPPORT
109 bool
110 default y
111
7ad1bcb2
RK
112config TRACE_IRQFLAGS_SUPPORT
113 bool
114 default y
115
4a2581a0
TG
116config HARDIRQS_SW_RESEND
117 bool
118 default y
119
120config GENERIC_IRQ_PROBE
121 bool
122 default y
123
95c354fe
NP
124config GENERIC_LOCKBREAK
125 bool
126 default y
127 depends on SMP && PREEMPT
128
1da177e4
LT
129config RWSEM_GENERIC_SPINLOCK
130 bool
131 default y
132
133config RWSEM_XCHGADD_ALGORITHM
134 bool
135
f0d1b0b3
DH
136config ARCH_HAS_ILOG2_U32
137 bool
f0d1b0b3
DH
138
139config ARCH_HAS_ILOG2_U64
140 bool
f0d1b0b3 141
89c52ed4
BD
142config ARCH_HAS_CPUFREQ
143 bool
144 help
145 Internal node to signify that the ARCH has CPUFREQ support
146 and that the relevant menu configurations are displayed for
147 it.
148
c7b0aff4
KH
149config ARCH_HAS_CPU_IDLE_WAIT
150 def_bool y
151
b89c3b16
AM
152config GENERIC_HWEIGHT
153 bool
154 default y
155
1da177e4
LT
156config GENERIC_CALIBRATE_DELAY
157 bool
158 default y
159
a08b6b79
AV
160config ARCH_MAY_HAVE_PC_FDC
161 bool
162
5ac6da66
CL
163config ZONE_DMA
164 bool
5ac6da66 165
ccd7ab7f
FT
166config NEED_DMA_MAP_STATE
167 def_bool y
168
1da177e4
LT
169config GENERIC_ISA_DMA
170 bool
171
1da177e4
LT
172config FIQ
173 bool
174
034d2f5a
AV
175config ARCH_MTD_XIP
176 bool
177
60a752ef 178config GENERIC_HARDIRQS_NO__DO_IRQ
60a752ef
PZ
179 def_bool y
180
d6d502fa
KK
181config ARM_L1_CACHE_SHIFT_6
182 bool
183 help
184 Setting ARM L1 cache line size to 64 Bytes.
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
ccf50e23
RK
207#
208# The "ARM system type" choice list is ordered alphabetically by option
209# text. Please add new entries in the option alphabetic order.
210#
1da177e4
LT
211choice
212 prompt "ARM system type"
6a0e2430 213 default ARCH_VERSATILE
1da177e4 214
4af6fee1
DS
215config ARCH_AAEC2000
216 bool "Agilent AAEC-2000 based"
c750815e 217 select CPU_ARM920T
4af6fee1 218 select ARM_AMBA
9483a578 219 select HAVE_CLK
5cfc8ee0 220 select ARCH_USES_GETTIMEOFFSET
4af6fee1
DS
221 help
222 This enables support for systems based on the Agilent AAEC-2000
223
224config ARCH_INTEGRATOR
225 bool "ARM Ltd. Integrator family"
226 select ARM_AMBA
89c52ed4 227 select ARCH_HAS_CPUFREQ
d72fbdf0 228 select COMMON_CLKDEV
c5a0adb5 229 select ICST
13edd86d 230 select GENERIC_CLOCKEVENTS
f4b8b319 231 select PLAT_VERSATILE
4af6fee1
DS
232 help
233 Support for ARM's Integrator platform.
234
235config ARCH_REALVIEW
236 bool "ARM Ltd. RealView family"
237 select ARM_AMBA
cf30fb4a 238 select COMMON_CLKDEV
c5a0adb5 239 select ICST
ae30ceac 240 select GENERIC_CLOCKEVENTS
eb7fffa3 241 select ARCH_WANT_OPTIONAL_GPIOLIB
f4b8b319 242 select PLAT_VERSATILE
e3887714 243 select ARM_TIMER_SP804
b56ba8aa 244 select GPIO_PL061 if GPIOLIB
4af6fee1
DS
245 help
246 This enables support for ARM Ltd RealView boards.
247
248config ARCH_VERSATILE
249 bool "ARM Ltd. Versatile family"
250 select ARM_AMBA
251 select ARM_VIC
71a06da0 252 select COMMON_CLKDEV
c5a0adb5 253 select ICST
89df1272 254 select GENERIC_CLOCKEVENTS
bbeddc43 255 select ARCH_WANT_OPTIONAL_GPIOLIB
f4b8b319 256 select PLAT_VERSATILE
e3887714 257 select ARM_TIMER_SP804
4af6fee1
DS
258 help
259 This enables support for ARM Ltd Versatile board.
260
ceade897
RK
261config ARCH_VEXPRESS
262 bool "ARM Ltd. Versatile Express family"
263 select ARCH_WANT_OPTIONAL_GPIOLIB
264 select ARM_AMBA
265 select ARM_TIMER_SP804
266 select COMMON_CLKDEV
267 select GENERIC_CLOCKEVENTS
ceade897
RK
268 select HAVE_CLK
269 select ICST
270 select PLAT_VERSATILE
271 help
272 This enables support for the ARM Ltd Versatile Express boards.
273
8fc5ffa0
AV
274config ARCH_AT91
275 bool "Atmel AT91"
f373e8c0 276 select ARCH_REQUIRE_GPIOLIB
93686ae8 277 select HAVE_CLK
4af6fee1 278 help
2b3b3516
AV
279 This enables support for systems based on the Atmel AT91RM9200,
280 AT91SAM9 and AT91CAP9 processors.
4af6fee1 281
ccf50e23
RK
282config ARCH_BCMRING
283 bool "Broadcom BCMRING"
284 depends on MMU
285 select CPU_V6
286 select ARM_AMBA
287 select COMMON_CLKDEV
ccf50e23
RK
288 select GENERIC_CLOCKEVENTS
289 select ARCH_WANT_OPTIONAL_GPIOLIB
290 help
291 Support for Broadcom's BCMRing platform.
292
1da177e4 293config ARCH_CLPS711X
4af6fee1 294 bool "Cirrus Logic CLPS711x/EP721x-based"
c750815e 295 select CPU_ARM720T
5cfc8ee0 296 select ARCH_USES_GETTIMEOFFSET
f999b8bd
MM
297 help
298 Support for Cirrus Logic 711x/721x based boards.
1da177e4 299
d94f944e
AV
300config ARCH_CNS3XXX
301 bool "Cavium Networks CNS3XXX family"
302 select CPU_V6
d94f944e
AV
303 select GENERIC_CLOCKEVENTS
304 select ARM_GIC
5f32f7a0 305 select PCI_DOMAINS if PCI
d94f944e
AV
306 help
307 Support for Cavium Networks CNS3XXX platform.
308
788c9700
RK
309config ARCH_GEMINI
310 bool "Cortina Systems Gemini"
311 select CPU_FA526
788c9700 312 select ARCH_REQUIRE_GPIOLIB
5cfc8ee0 313 select ARCH_USES_GETTIMEOFFSET
788c9700
RK
314 help
315 Support for the Cortina Systems Gemini family SoCs
316
1da177e4
LT
317config ARCH_EBSA110
318 bool "EBSA-110"
c750815e 319 select CPU_SA110
f7e68bbf 320 select ISA
c5eb2a2b 321 select NO_IOPORT
5cfc8ee0 322 select ARCH_USES_GETTIMEOFFSET
1da177e4
LT
323 help
324 This is an evaluation board for the StrongARM processor available
f6c8965a 325 from Digital. It has limited hardware on-board, including an
1da177e4
LT
326 Ethernet interface, two PCMCIA sockets, two serial ports and a
327 parallel port.
328
e7736d47
LB
329config ARCH_EP93XX
330 bool "EP93xx-based"
c750815e 331 select CPU_ARM920T
e7736d47
LB
332 select ARM_AMBA
333 select ARM_VIC
ae696fd5 334 select COMMON_CLKDEV
7444a72e 335 select ARCH_REQUIRE_GPIOLIB
eb33575c 336 select ARCH_HAS_HOLES_MEMORYMODEL
5cfc8ee0 337 select ARCH_USES_GETTIMEOFFSET
e7736d47
LB
338 help
339 This enables support for the Cirrus EP93xx series of CPUs.
340
1da177e4
LT
341config ARCH_FOOTBRIDGE
342 bool "FootBridge"
c750815e 343 select CPU_SA110
1da177e4 344 select FOOTBRIDGE
5cfc8ee0 345 select ARCH_USES_GETTIMEOFFSET
f999b8bd
MM
346 help
347 Support for systems based on the DC21285 companion chip
348 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 349
788c9700
RK
350config ARCH_MXC
351 bool "Freescale MXC/iMX-based"
788c9700 352 select GENERIC_CLOCKEVENTS
788c9700 353 select ARCH_REQUIRE_GPIOLIB
03e09cd8 354 select COMMON_CLKDEV
788c9700
RK
355 help
356 Support for Freescale MXC/iMX-based family of processors
357
7bd0f2f5 358config ARCH_STMP3XXX
359 bool "Freescale STMP3xxx"
360 select CPU_ARM926T
7bd0f2f5 361 select COMMON_CLKDEV
362 select ARCH_REQUIRE_GPIOLIB
7bd0f2f5 363 select GENERIC_CLOCKEVENTS
7bd0f2f5 364 select USB_ARCH_HAS_EHCI
365 help
366 Support for systems based on the Freescale 3xxx CPUs.
367
4af6fee1
DS
368config ARCH_NETX
369 bool "Hilscher NetX based"
c750815e 370 select CPU_ARM926T
4af6fee1 371 select ARM_VIC
2fcfe6b8 372 select GENERIC_CLOCKEVENTS
f999b8bd 373 help
4af6fee1
DS
374 This enables support for systems based on the Hilscher NetX Soc
375
376config ARCH_H720X
377 bool "Hynix HMS720x-based"
c750815e 378 select CPU_ARM720T
4af6fee1 379 select ISA_DMA_API
5cfc8ee0 380 select ARCH_USES_GETTIMEOFFSET
4af6fee1
DS
381 help
382 This enables support for systems based on the Hynix HMS720x
383
3b938be6
RK
384config ARCH_IOP13XX
385 bool "IOP13xx-based"
386 depends on MMU
c750815e 387 select CPU_XSC3
3b938be6
RK
388 select PLAT_IOP
389 select PCI
390 select ARCH_SUPPORTS_MSI
8d5796d2 391 select VMSPLIT_1G
3b938be6
RK
392 help
393 Support for Intel's IOP13XX (XScale) family of processors.
394
3f7e5815
LB
395config ARCH_IOP32X
396 bool "IOP32x-based"
a4f7e763 397 depends on MMU
c750815e 398 select CPU_XSCALE
7ae1f7ec 399 select PLAT_IOP
f7e68bbf 400 select PCI
bb2b180c 401 select ARCH_REQUIRE_GPIOLIB
f999b8bd 402 help
3f7e5815
LB
403 Support for Intel's 80219 and IOP32X (XScale) family of
404 processors.
405
406config ARCH_IOP33X
407 bool "IOP33x-based"
408 depends on MMU
c750815e 409 select CPU_XSCALE
7ae1f7ec 410 select PLAT_IOP
3f7e5815 411 select PCI
bb2b180c 412 select ARCH_REQUIRE_GPIOLIB
3f7e5815
LB
413 help
414 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 415
3b938be6
RK
416config ARCH_IXP23XX
417 bool "IXP23XX-based"
a4f7e763 418 depends on MMU
c750815e 419 select CPU_XSC3
3b938be6 420 select PCI
5cfc8ee0 421 select ARCH_USES_GETTIMEOFFSET
f999b8bd 422 help
3b938be6 423 Support for Intel's IXP23xx (XScale) family of processors.
1da177e4
LT
424
425config ARCH_IXP2000
426 bool "IXP2400/2800-based"
a4f7e763 427 depends on MMU
c750815e 428 select CPU_XSCALE
f7e68bbf 429 select PCI
5cfc8ee0 430 select ARCH_USES_GETTIMEOFFSET
f999b8bd
MM
431 help
432 Support for Intel's IXP2400/2800 (XScale) family of processors.
1da177e4 433
3b938be6
RK
434config ARCH_IXP4XX
435 bool "IXP4xx-based"
a4f7e763 436 depends on MMU
c750815e 437 select CPU_XSCALE
8858e9af 438 select GENERIC_GPIO
3b938be6 439 select GENERIC_CLOCKEVENTS
5b0d495c 440 select HAVE_SCHED_CLOCK
485bdde7 441 select DMABOUNCE if PCI
c4713074 442 help
3b938be6 443 Support for Intel's IXP4XX (XScale) family of processors.
c4713074 444
edabd38e
SB
445config ARCH_DOVE
446 bool "Marvell Dove"
447 select PCI
edabd38e 448 select ARCH_REQUIRE_GPIOLIB
edabd38e
SB
449 select GENERIC_CLOCKEVENTS
450 select PLAT_ORION
451 help
452 Support for the Marvell Dove SoC 88AP510
453
651c74c7
SB
454config ARCH_KIRKWOOD
455 bool "Marvell Kirkwood"
c750815e 456 select CPU_FEROCEON
651c74c7 457 select PCI
a8865655 458 select ARCH_REQUIRE_GPIOLIB
651c74c7
SB
459 select GENERIC_CLOCKEVENTS
460 select PLAT_ORION
461 help
462 Support for the following Marvell Kirkwood series SoCs:
463 88F6180, 88F6192 and 88F6281.
464
777f9beb
LB
465config ARCH_LOKI
466 bool "Marvell Loki (88RC8480)"
c750815e 467 select CPU_FEROCEON
777f9beb
LB
468 select GENERIC_CLOCKEVENTS
469 select PLAT_ORION
470 help
471 Support for the Marvell Loki (88RC8480) SoC.
472
40805949
KW
473config ARCH_LPC32XX
474 bool "NXP LPC32XX"
475 select CPU_ARM926T
476 select ARCH_REQUIRE_GPIOLIB
477 select HAVE_IDE
478 select ARM_AMBA
479 select USB_ARCH_HAS_OHCI
480 select COMMON_CLKDEV
481 select GENERIC_TIME
482 select GENERIC_CLOCKEVENTS
483 help
484 Support for the NXP LPC32XX family of processors
485
794d15b2
SS
486config ARCH_MV78XX0
487 bool "Marvell MV78xx0"
c750815e 488 select CPU_FEROCEON
794d15b2 489 select PCI
a8865655 490 select ARCH_REQUIRE_GPIOLIB
794d15b2
SS
491 select GENERIC_CLOCKEVENTS
492 select PLAT_ORION
493 help
494 Support for the following Marvell MV78xx0 series SoCs:
495 MV781x0, MV782x0.
496
9dd0b194 497config ARCH_ORION5X
585cf175
TP
498 bool "Marvell Orion"
499 depends on MMU
c750815e 500 select CPU_FEROCEON
038ee083 501 select PCI
a8865655 502 select ARCH_REQUIRE_GPIOLIB
51cbff1d 503 select GENERIC_CLOCKEVENTS
69b02f6a 504 select PLAT_ORION
585cf175 505 help
9dd0b194 506 Support for the following Marvell Orion 5x series SoCs:
d2b2a6bb 507 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
d323ade1 508 Orion-2 (5281), Orion-1-90 (6183).
585cf175 509
788c9700 510config ARCH_MMP
2f7e8fae 511 bool "Marvell PXA168/910/MMP2"
788c9700 512 depends on MMU
788c9700 513 select ARCH_REQUIRE_GPIOLIB
788c9700 514 select COMMON_CLKDEV
788c9700 515 select GENERIC_CLOCKEVENTS
28bb7bc6 516 select HAVE_SCHED_CLOCK
788c9700
RK
517 select TICK_ONESHOT
518 select PLAT_PXA
0bd86961 519 select SPARSE_IRQ
788c9700 520 help
2f7e8fae 521 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
788c9700
RK
522
523config ARCH_KS8695
524 bool "Micrel/Kendin KS8695"
525 select CPU_ARM922T
98830bc9 526 select ARCH_REQUIRE_GPIOLIB
5cfc8ee0 527 select ARCH_USES_GETTIMEOFFSET
788c9700
RK
528 help
529 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
530 System-on-Chip devices.
531
532config ARCH_NS9XXX
533 bool "NetSilicon NS9xxx"
534 select CPU_ARM926T
535 select GENERIC_GPIO
788c9700
RK
536 select GENERIC_CLOCKEVENTS
537 select HAVE_CLK
538 help
539 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
540 System.
541
542 <http://www.digi.com/products/microprocessors/index.jsp>
543
544config ARCH_W90X900
545 bool "Nuvoton W90X900 CPU"
546 select CPU_ARM926T
c52d3d68 547 select ARCH_REQUIRE_GPIOLIB
0e4a34bb 548 select COMMON_CLKDEV
58b5369e 549 select GENERIC_CLOCKEVENTS
788c9700 550 help
a8bc4ead 551 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
552 At present, the w90x900 has been renamed nuc900, regarding
553 the ARM series product line, you can login the following
554 link address to know more.
555
556 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
557 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
788c9700 558
a62e9030 559config ARCH_NUC93X
560 bool "Nuvoton NUC93X CPU"
561 select CPU_ARM926T
a62e9030 562 select COMMON_CLKDEV
563 help
564 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
565 low-power and high performance MPEG-4/JPEG multimedia controller chip.
566
c5f80065
EG
567config ARCH_TEGRA
568 bool "NVIDIA Tegra"
569 select GENERIC_TIME
570 select GENERIC_CLOCKEVENTS
571 select GENERIC_GPIO
572 select HAVE_CLK
e3f4c0ab 573 select HAVE_SCHED_CLOCK
d8611961 574 select COMMON_CLKDEV
c5f80065 575 select ARCH_HAS_BARRIERS if CACHE_L2X0
7056d423 576 select ARCH_HAS_CPUFREQ
c5f80065
EG
577 help
578 This enables support for NVIDIA Tegra based systems (Tegra APX,
579 Tegra 6xx and Tegra 2 series).
580
4af6fee1
DS
581config ARCH_PNX4008
582 bool "Philips Nexperia PNX4008 Mobile"
c750815e 583 select CPU_ARM926T
6985a5ad 584 select COMMON_CLKDEV
5cfc8ee0 585 select ARCH_USES_GETTIMEOFFSET
4af6fee1
DS
586 help
587 This enables support for Philips PNX4008 mobile platform.
588
1da177e4 589config ARCH_PXA
2c8086a5 590 bool "PXA2xx/PXA3xx-based"
a4f7e763 591 depends on MMU
034d2f5a 592 select ARCH_MTD_XIP
89c52ed4 593 select ARCH_HAS_CPUFREQ
8c3abc7d 594 select COMMON_CLKDEV
7444a72e 595 select ARCH_REQUIRE_GPIOLIB
981d0f39 596 select GENERIC_CLOCKEVENTS
7ce83018 597 select HAVE_SCHED_CLOCK
a88264c2 598 select TICK_ONESHOT
bd5ce433 599 select PLAT_PXA
6ac6b817 600 select SPARSE_IRQ
f999b8bd 601 help
2c8086a5 602 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
1da177e4 603
788c9700
RK
604config ARCH_MSM
605 bool "Qualcomm MSM"
4b536b8d 606 select HAVE_CLK
49cbe786 607 select GENERIC_CLOCKEVENTS
923a081c 608 select ARCH_REQUIRE_GPIOLIB
49cbe786 609 help
4b53eb4f
DW
610 Support for Qualcomm MSM/QSD based systems. This runs on the
611 apps processor of the MSM/QSD and depends on a shared memory
612 interface to the modem processor which runs the baseband
613 stack and controls some vital subsystems
614 (clock and power control, etc).
49cbe786 615
c793c1b0
MD
616config ARCH_SHMOBILE
617 bool "Renesas SH-Mobile"
618 help
619 Support for Renesas's SH-Mobile ARM platforms
620
1da177e4
LT
621config ARCH_RPC
622 bool "RiscPC"
623 select ARCH_ACORN
624 select FIQ
625 select TIMER_ACORN
a08b6b79 626 select ARCH_MAY_HAVE_PC_FDC
341eb781 627 select HAVE_PATA_PLATFORM
065909b9 628 select ISA_DMA_API
5ea81769 629 select NO_IOPORT
07f841b7 630 select ARCH_SPARSEMEM_ENABLE
5cfc8ee0 631 select ARCH_USES_GETTIMEOFFSET
1da177e4
LT
632 help
633 On the Acorn Risc-PC, Linux can support the internal IDE disk and
634 CD-ROM interface, serial and parallel port, and the floppy drive.
635
636config ARCH_SA1100
637 bool "SA1100-based"
c750815e 638 select CPU_SA1100
f7e68bbf 639 select ISA
05944d74 640 select ARCH_SPARSEMEM_ENABLE
034d2f5a 641 select ARCH_MTD_XIP
89c52ed4 642 select ARCH_HAS_CPUFREQ
1937f5b9 643 select CPU_FREQ
3e238be2 644 select GENERIC_CLOCKEVENTS
9483a578 645 select HAVE_CLK
5094b92f 646 select HAVE_SCHED_CLOCK
3e238be2 647 select TICK_ONESHOT
7444a72e 648 select ARCH_REQUIRE_GPIOLIB
f999b8bd
MM
649 help
650 Support for StrongARM 11x0 based boards.
1da177e4
LT
651
652config ARCH_S3C2410
63b1f51b 653 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
0a938b97 654 select GENERIC_GPIO
9d56c02a 655 select ARCH_HAS_CPUFREQ
9483a578 656 select HAVE_CLK
5cfc8ee0 657 select ARCH_USES_GETTIMEOFFSET
20676c15 658 select HAVE_S3C2410_I2C if I2C
1da177e4
LT
659 help
660 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
661 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
f6c8965a 662 the Samsung SMDK2410 development board (and derivatives).
1da177e4 663
63b1f51b
BD
664 Note, the S3C2416 and the S3C2450 are so close that they even share
665 the same SoC ID code. This means that there is no seperate machine
666 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
667
a08ab637
BD
668config ARCH_S3C64XX
669 bool "Samsung S3C64XX"
89f1fa08 670 select PLAT_SAMSUNG
89f0ce72 671 select CPU_V6
89f0ce72 672 select ARM_VIC
a08ab637 673 select HAVE_CLK
89f0ce72 674 select NO_IOPORT
5cfc8ee0 675 select ARCH_USES_GETTIMEOFFSET
89c52ed4 676 select ARCH_HAS_CPUFREQ
89f0ce72
BD
677 select ARCH_REQUIRE_GPIOLIB
678 select SAMSUNG_CLKSRC
679 select SAMSUNG_IRQ_VIC_TIMER
680 select SAMSUNG_IRQ_UART
681 select S3C_GPIO_TRACK
682 select S3C_GPIO_PULL_UPDOWN
683 select S3C_GPIO_CFG_S3C24XX
684 select S3C_GPIO_CFG_S3C64XX
685 select S3C_DEV_NAND
686 select USB_ARCH_HAS_OHCI
687 select SAMSUNG_GPIOLIB_4BIT
20676c15 688 select HAVE_S3C2410_I2C if I2C
c39d8d55 689 select HAVE_S3C2410_WATCHDOG if WATCHDOG
a08ab637
BD
690 help
691 Samsung S3C64XX series based systems
692
49b7a491
KK
693config ARCH_S5P64X0
694 bool "Samsung S5P6440 S5P6450"
c4ffccdd
KK
695 select CPU_V6
696 select GENERIC_GPIO
697 select HAVE_CLK
c39d8d55 698 select HAVE_S3C2410_WATCHDOG if WATCHDOG
925c68cd 699 select ARCH_USES_GETTIMEOFFSET
20676c15 700 select HAVE_S3C2410_I2C if I2C
754961a8 701 select HAVE_S3C_RTC if RTC_CLASS
c4ffccdd 702 help
49b7a491
KK
703 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
704 SMDK6450.
c4ffccdd 705
550db7f1
KK
706config ARCH_S5P6442
707 bool "Samsung S5P6442"
708 select CPU_V6
709 select GENERIC_GPIO
710 select HAVE_CLK
925c68cd 711 select ARCH_USES_GETTIMEOFFSET
c39d8d55 712 select HAVE_S3C2410_WATCHDOG if WATCHDOG
550db7f1
KK
713 help
714 Samsung S5P6442 CPU based systems
715
acc84707
MS
716config ARCH_S5PC100
717 bool "Samsung S5PC100"
5a7652f2
BM
718 select GENERIC_GPIO
719 select HAVE_CLK
720 select CPU_V7
d6d502fa 721 select ARM_L1_CACHE_SHIFT_6
925c68cd 722 select ARCH_USES_GETTIMEOFFSET
20676c15 723 select HAVE_S3C2410_I2C if I2C
754961a8 724 select HAVE_S3C_RTC if RTC_CLASS
c39d8d55 725 select HAVE_S3C2410_WATCHDOG if WATCHDOG
5a7652f2 726 help
acc84707 727 Samsung S5PC100 series based systems
5a7652f2 728
170f4e42
KK
729config ARCH_S5PV210
730 bool "Samsung S5PV210/S5PC110"
731 select CPU_V7
eecb6a84 732 select ARCH_SPARSEMEM_ENABLE
170f4e42
KK
733 select GENERIC_GPIO
734 select HAVE_CLK
735 select ARM_L1_CACHE_SHIFT_6
d8144aea 736 select ARCH_HAS_CPUFREQ
925c68cd 737 select ARCH_USES_GETTIMEOFFSET
20676c15 738 select HAVE_S3C2410_I2C if I2C
754961a8 739 select HAVE_S3C_RTC if RTC_CLASS
c39d8d55 740 select HAVE_S3C2410_WATCHDOG if WATCHDOG
170f4e42
KK
741 help
742 Samsung S5PV210/S5PC110 series based systems
743
cc0e72b8
CY
744config ARCH_S5PV310
745 bool "Samsung S5PV310/S5PC210"
746 select CPU_V7
f567fa6f 747 select ARCH_SPARSEMEM_ENABLE
cc0e72b8
CY
748 select GENERIC_GPIO
749 select HAVE_CLK
750 select GENERIC_CLOCKEVENTS
754961a8 751 select HAVE_S3C_RTC if RTC_CLASS
20676c15 752 select HAVE_S3C2410_I2C if I2C
c39d8d55 753 select HAVE_S3C2410_WATCHDOG if WATCHDOG
cc0e72b8
CY
754 help
755 Samsung S5PV310 series based systems
756
1da177e4
LT
757config ARCH_SHARK
758 bool "Shark"
c750815e 759 select CPU_SA110
f7e68bbf
RK
760 select ISA
761 select ISA_DMA
3bca103a 762 select ZONE_DMA
f7e68bbf 763 select PCI
5cfc8ee0 764 select ARCH_USES_GETTIMEOFFSET
f999b8bd
MM
765 help
766 Support for the StrongARM based Digital DNARD machine, also known
767 as "Shark" (<http://www.shark-linux.de/shark.html>).
1da177e4 768
83ef3338
HK
769config ARCH_TCC_926
770 bool "Telechips TCC ARM926-based systems"
771 select CPU_ARM926T
772 select HAVE_CLK
773 select COMMON_CLKDEV
774 select GENERIC_CLOCKEVENTS
775 help
776 Support for Telechips TCC ARM926-based systems.
777
1da177e4
LT
778config ARCH_LH7A40X
779 bool "Sharp LH7A40X"
c750815e 780 select CPU_ARM922T
4ba3f7c5 781 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
5cfc8ee0 782 select ARCH_USES_GETTIMEOFFSET
1da177e4
LT
783 help
784 Say Y here for systems based on one of the Sharp LH7A40X
785 System on a Chip processors. These CPUs include an ARM922T
786 core with a wide array of integrated devices for
787 hand-held and low-power applications.
788
d98aac75
LW
789config ARCH_U300
790 bool "ST-Ericsson U300 Series"
791 depends on MMU
792 select CPU_ARM926T
5c21b7ca 793 select HAVE_SCHED_CLOCK
bc581770 794 select HAVE_TCM
d98aac75
LW
795 select ARM_AMBA
796 select ARM_VIC
d98aac75 797 select GENERIC_CLOCKEVENTS
d98aac75
LW
798 select COMMON_CLKDEV
799 select GENERIC_GPIO
800 help
801 Support for ST-Ericsson U300 series mobile platforms.
802
ccf50e23
RK
803config ARCH_U8500
804 bool "ST-Ericsson U8500 Series"
805 select CPU_V7
806 select ARM_AMBA
ccf50e23
RK
807 select GENERIC_CLOCKEVENTS
808 select COMMON_CLKDEV
94bdc0e2 809 select ARCH_REQUIRE_GPIOLIB
ccf50e23
RK
810 help
811 Support for ST-Ericsson's Ux500 architecture
812
813config ARCH_NOMADIK
814 bool "STMicroelectronics Nomadik"
815 select ARM_AMBA
816 select ARM_VIC
817 select CPU_ARM926T
ccf50e23 818 select COMMON_CLKDEV
ccf50e23 819 select GENERIC_CLOCKEVENTS
ccf50e23
RK
820 select ARCH_REQUIRE_GPIOLIB
821 help
822 Support for the Nomadik platform by ST-Ericsson
823
7c6337e2
KH
824config ARCH_DAVINCI
825 bool "TI DaVinci"
7c6337e2 826 select GENERIC_CLOCKEVENTS
dce1115b 827 select ARCH_REQUIRE_GPIOLIB
3bca103a 828 select ZONE_DMA
9232fcc9 829 select HAVE_IDE
c5b736d0 830 select COMMON_CLKDEV
20e9969b 831 select GENERIC_ALLOCATOR
ae88e05a 832 select ARCH_HAS_HOLES_MEMORYMODEL
7c6337e2
KH
833 help
834 Support for TI's DaVinci platform.
835
3b938be6
RK
836config ARCH_OMAP
837 bool "TI OMAP"
9483a578 838 select HAVE_CLK
7444a72e 839 select ARCH_REQUIRE_GPIOLIB
89c52ed4 840 select ARCH_HAS_CPUFREQ
06cad098 841 select GENERIC_CLOCKEVENTS
9af915da 842 select ARCH_HAS_HOLES_MEMORYMODEL
3b938be6 843 help
6e457bb0 844 Support for TI's OMAP platform (OMAP1/2/3/4).
3b938be6 845
cee37e50
VK
846config PLAT_SPEAR
847 bool "ST SPEAr"
848 select ARM_AMBA
849 select ARCH_REQUIRE_GPIOLIB
850 select COMMON_CLKDEV
851 select GENERIC_CLOCKEVENTS
cee37e50
VK
852 select HAVE_CLK
853 help
854 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
855
1da177e4
LT
856endchoice
857
ccf50e23
RK
858#
859# This is sorted alphabetically by mach-* pathname. However, plat-*
860# Kconfigs may be included either alphabetically (according to the
861# plat- suffix) or along side the corresponding mach-* source.
862#
95b8f20f
RK
863source "arch/arm/mach-aaec2000/Kconfig"
864
865source "arch/arm/mach-at91/Kconfig"
866
867source "arch/arm/mach-bcmring/Kconfig"
868
1da177e4
LT
869source "arch/arm/mach-clps711x/Kconfig"
870
d94f944e
AV
871source "arch/arm/mach-cns3xxx/Kconfig"
872
95b8f20f
RK
873source "arch/arm/mach-davinci/Kconfig"
874
875source "arch/arm/mach-dove/Kconfig"
876
e7736d47
LB
877source "arch/arm/mach-ep93xx/Kconfig"
878
1da177e4
LT
879source "arch/arm/mach-footbridge/Kconfig"
880
59d3a193
PZ
881source "arch/arm/mach-gemini/Kconfig"
882
95b8f20f
RK
883source "arch/arm/mach-h720x/Kconfig"
884
1da177e4
LT
885source "arch/arm/mach-integrator/Kconfig"
886
3f7e5815
LB
887source "arch/arm/mach-iop32x/Kconfig"
888
889source "arch/arm/mach-iop33x/Kconfig"
1da177e4 890
285f5fa7
DW
891source "arch/arm/mach-iop13xx/Kconfig"
892
1da177e4
LT
893source "arch/arm/mach-ixp4xx/Kconfig"
894
895source "arch/arm/mach-ixp2000/Kconfig"
896
c4713074
LB
897source "arch/arm/mach-ixp23xx/Kconfig"
898
95b8f20f
RK
899source "arch/arm/mach-kirkwood/Kconfig"
900
901source "arch/arm/mach-ks8695/Kconfig"
902
903source "arch/arm/mach-lh7a40x/Kconfig"
904
777f9beb
LB
905source "arch/arm/mach-loki/Kconfig"
906
40805949
KW
907source "arch/arm/mach-lpc32xx/Kconfig"
908
95b8f20f
RK
909source "arch/arm/mach-msm/Kconfig"
910
794d15b2
SS
911source "arch/arm/mach-mv78xx0/Kconfig"
912
95b8f20f 913source "arch/arm/plat-mxc/Kconfig"
1da177e4 914
95b8f20f 915source "arch/arm/mach-netx/Kconfig"
49cbe786 916
95b8f20f
RK
917source "arch/arm/mach-nomadik/Kconfig"
918source "arch/arm/plat-nomadik/Kconfig"
919
920source "arch/arm/mach-ns9xxx/Kconfig"
1da177e4 921
186f93ea 922source "arch/arm/mach-nuc93x/Kconfig"
1da177e4 923
d48af15e
TL
924source "arch/arm/plat-omap/Kconfig"
925
926source "arch/arm/mach-omap1/Kconfig"
1da177e4 927
1dbae815
TL
928source "arch/arm/mach-omap2/Kconfig"
929
9dd0b194 930source "arch/arm/mach-orion5x/Kconfig"
585cf175 931
95b8f20f
RK
932source "arch/arm/mach-pxa/Kconfig"
933source "arch/arm/plat-pxa/Kconfig"
585cf175 934
95b8f20f
RK
935source "arch/arm/mach-mmp/Kconfig"
936
937source "arch/arm/mach-realview/Kconfig"
938
939source "arch/arm/mach-sa1100/Kconfig"
edabd38e 940
cf383678 941source "arch/arm/plat-samsung/Kconfig"
a21765a7 942source "arch/arm/plat-s3c24xx/Kconfig"
c4ffccdd 943source "arch/arm/plat-s5p/Kconfig"
a21765a7 944
cee37e50 945source "arch/arm/plat-spear/Kconfig"
a21765a7 946
83ef3338
HK
947source "arch/arm/plat-tcc/Kconfig"
948
a21765a7
BD
949if ARCH_S3C2410
950source "arch/arm/mach-s3c2400/Kconfig"
1da177e4 951source "arch/arm/mach-s3c2410/Kconfig"
a21765a7 952source "arch/arm/mach-s3c2412/Kconfig"
f1290a49 953source "arch/arm/mach-s3c2416/Kconfig"
a21765a7 954source "arch/arm/mach-s3c2440/Kconfig"
e4d06e39 955source "arch/arm/mach-s3c2443/Kconfig"
a21765a7 956endif
1da177e4 957
a08ab637 958if ARCH_S3C64XX
431107ea 959source "arch/arm/mach-s3c64xx/Kconfig"
a08ab637
BD
960endif
961
49b7a491 962source "arch/arm/mach-s5p64x0/Kconfig"
c4ffccdd 963
550db7f1 964source "arch/arm/mach-s5p6442/Kconfig"
7bd0f2f5 965
5a7652f2 966source "arch/arm/mach-s5pc100/Kconfig"
5a7652f2 967
170f4e42
KK
968source "arch/arm/mach-s5pv210/Kconfig"
969
cc0e72b8
CY
970source "arch/arm/mach-s5pv310/Kconfig"
971
882d01f9 972source "arch/arm/mach-shmobile/Kconfig"
52c543f9 973
882d01f9 974source "arch/arm/plat-stmp3xxx/Kconfig"
9e73c84c 975
c5f80065
EG
976source "arch/arm/mach-tegra/Kconfig"
977
95b8f20f 978source "arch/arm/mach-u300/Kconfig"
1da177e4 979
95b8f20f 980source "arch/arm/mach-ux500/Kconfig"
1da177e4
LT
981
982source "arch/arm/mach-versatile/Kconfig"
983
ceade897
RK
984source "arch/arm/mach-vexpress/Kconfig"
985
7ec80ddf 986source "arch/arm/mach-w90x900/Kconfig"
987
1da177e4
LT
988# Definitions to make life easier
989config ARCH_ACORN
990 bool
991
7ae1f7ec
LB
992config PLAT_IOP
993 bool
469d3044 994 select GENERIC_CLOCKEVENTS
08f26b1e 995 select HAVE_SCHED_CLOCK
7ae1f7ec 996
69b02f6a
LB
997config PLAT_ORION
998 bool
999
bd5ce433
EM
1000config PLAT_PXA
1001 bool
1002
f4b8b319
RK
1003config PLAT_VERSATILE
1004 bool
1005
e3887714
RK
1006config ARM_TIMER_SP804
1007 bool
1008
1da177e4
LT
1009source arch/arm/mm/Kconfig
1010
afe4b25e
LB
1011config IWMMXT
1012 bool "Enable iWMMXt support"
40305a58
EM
1013 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
1014 default y if PXA27x || PXA3xx || ARCH_MMP
afe4b25e
LB
1015 help
1016 Enable support for iWMMXt context switching at run time if
1017 running on a CPU that supports it.
1018
1da177e4
LT
1019# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1020config XSCALE_PMU
1021 bool
1022 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1023 default y
1024
0f4f0672 1025config CPU_HAS_PMU
8954bb0d
WD
1026 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1027 (!ARCH_OMAP3 || OMAP3_EMU)
0f4f0672
JI
1028 default y
1029 bool
1030
3b93e7b0
HC
1031if !MMU
1032source "arch/arm/Kconfig-nommu"
1033endif
1034
9cba3ccc
CM
1035config ARM_ERRATA_411920
1036 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
81d11955 1037 depends on CPU_V6
9cba3ccc
CM
1038 help
1039 Invalidation of the Instruction Cache operation can
1040 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1041 It does not affect the MPCore. This option enables the ARM Ltd.
1042 recommended workaround.
1043
7ce236fc
CM
1044config ARM_ERRATA_430973
1045 bool "ARM errata: Stale prediction on replaced interworking branch"
1046 depends on CPU_V7
1047 help
1048 This option enables the workaround for the 430973 Cortex-A8
1049 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1050 interworking branch is replaced with another code sequence at the
1051 same virtual address, whether due to self-modifying code or virtual
1052 to physical address re-mapping, Cortex-A8 does not recover from the
1053 stale interworking branch prediction. This results in Cortex-A8
1054 executing the new code sequence in the incorrect ARM or Thumb state.
1055 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1056 and also flushes the branch target cache at every context switch.
1057 Note that setting specific bits in the ACTLR register may not be
1058 available in non-secure mode.
1059
855c551f
CM
1060config ARM_ERRATA_458693
1061 bool "ARM errata: Processor deadlock when a false hazard is created"
1062 depends on CPU_V7
1063 help
1064 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1065 erratum. For very specific sequences of memory operations, it is
1066 possible for a hazard condition intended for a cache line to instead
1067 be incorrectly associated with a different cache line. This false
1068 hazard might then cause a processor deadlock. The workaround enables
1069 the L1 caching of the NEON accesses and disables the PLD instruction
1070 in the ACTLR register. Note that setting specific bits in the ACTLR
1071 register may not be available in non-secure mode.
1072
0516e464
CM
1073config ARM_ERRATA_460075
1074 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1075 depends on CPU_V7
1076 help
1077 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1078 erratum. Any asynchronous access to the L2 cache may encounter a
1079 situation in which recent store transactions to the L2 cache are lost
1080 and overwritten with stale memory contents from external memory. The
1081 workaround disables the write-allocate mode for the L2 cache via the
1082 ACTLR register. Note that setting specific bits in the ACTLR register
1083 may not be available in non-secure mode.
1084
9f05027c
WD
1085config ARM_ERRATA_742230
1086 bool "ARM errata: DMB operation may be faulty"
1087 depends on CPU_V7 && SMP
1088 help
1089 This option enables the workaround for the 742230 Cortex-A9
1090 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1091 between two write operations may not ensure the correct visibility
1092 ordering of the two writes. This workaround sets a specific bit in
1093 the diagnostic register of the Cortex-A9 which causes the DMB
1094 instruction to behave as a DSB, ensuring the correct behaviour of
1095 the two writes.
1096
a672e99b
WD
1097config ARM_ERRATA_742231
1098 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1099 depends on CPU_V7 && SMP
1100 help
1101 This option enables the workaround for the 742231 Cortex-A9
1102 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1103 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1104 accessing some data located in the same cache line, may get corrupted
1105 data due to bad handling of the address hazard when the line gets
1106 replaced from one of the CPUs at the same time as another CPU is
1107 accessing it. This workaround sets specific bits in the diagnostic
1108 register of the Cortex-A9 which reduces the linefill issuing
1109 capabilities of the processor.
1110
9e65582a
SS
1111config PL310_ERRATA_588369
1112 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1113 depends on CACHE_L2X0 && ARCH_OMAP4
1114 help
1115 The PL310 L2 cache controller implements three types of Clean &
1116 Invalidate maintenance operations: by Physical Address
1117 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1118 They are architecturally defined to behave as the execution of a
1119 clean operation followed immediately by an invalidate operation,
1120 both performing to the same memory location. This functionality
1121 is not correctly implemented in PL310 as clean lines are not
1122 invalidated as a result of these operations. Note that this errata
1123 uses Texas Instrument's secure monitor api.
cdf357f1
WD
1124
1125config ARM_ERRATA_720789
1126 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1127 depends on CPU_V7 && SMP
1128 help
1129 This option enables the workaround for the 720789 Cortex-A9 (prior to
1130 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1131 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1132 As a consequence of this erratum, some TLB entries which should be
1133 invalidated are not, resulting in an incoherency in the system page
1134 tables. The workaround changes the TLB flushing routines to invalidate
1135 entries regardless of the ASID.
475d92fc
WD
1136
1137config ARM_ERRATA_743622
1138 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1139 depends on CPU_V7
1140 help
1141 This option enables the workaround for the 743622 Cortex-A9
1142 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1143 optimisation in the Cortex-A9 Store Buffer may lead to data
1144 corruption. This workaround sets a specific bit in the diagnostic
1145 register of the Cortex-A9 which disables the Store Buffer
1146 optimisation, preventing the defect from occurring. This has no
1147 visible impact on the overall performance or power consumption of the
1148 processor.
1149
1da177e4
LT
1150endmenu
1151
1152source "arch/arm/common/Kconfig"
1153
1da177e4
LT
1154menu "Bus support"
1155
1156config ARM_AMBA
1157 bool
1158
1159config ISA
1160 bool
1da177e4
LT
1161 help
1162 Find out whether you have ISA slots on your motherboard. ISA is the
1163 name of a bus system, i.e. the way the CPU talks to the other stuff
1164 inside your box. Other bus systems are PCI, EISA, MicroChannel
1165 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1166 newer boards don't support it. If you have ISA, say Y, otherwise N.
1167
065909b9 1168# Select ISA DMA controller support
1da177e4
LT
1169config ISA_DMA
1170 bool
065909b9 1171 select ISA_DMA_API
1da177e4 1172
065909b9 1173# Select ISA DMA interface
5cae841b
AV
1174config ISA_DMA_API
1175 bool
5cae841b 1176
1da177e4 1177config PCI
5f32f7a0 1178 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE || ARCH_CNS3XXX
1da177e4
LT
1179 help
1180 Find out whether you have a PCI motherboard. PCI is the name of a
1181 bus system, i.e. the way the CPU talks to the other stuff inside
1182 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1183 VESA. If you have PCI, say Y, otherwise N.
1184
52882173
AV
1185config PCI_DOMAINS
1186 bool
1187 depends on PCI
1188
36e23590
MW
1189config PCI_SYSCALL
1190 def_bool PCI
1191
1da177e4
LT
1192# Select the host bridge type
1193config PCI_HOST_VIA82C505
1194 bool
1195 depends on PCI && ARCH_SHARK
1196 default y
1197
a0113a99
MR
1198config PCI_HOST_ITE8152
1199 bool
1200 depends on PCI && MACH_ARMCORE
1201 default y
1202 select DMABOUNCE
1203
1da177e4
LT
1204source "drivers/pci/Kconfig"
1205
1206source "drivers/pcmcia/Kconfig"
1207
1208endmenu
1209
1210menu "Kernel Features"
1211
0567a0c0
KH
1212source "kernel/time/Kconfig"
1213
1da177e4
LT
1214config SMP
1215 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
971acb9b 1216 depends on EXPERIMENTAL
bc28248e 1217 depends on GENERIC_CLOCKEVENTS
971acb9b 1218 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
89c3dedf
DW
1219 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1220 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
1221 ARCH_MSM_SCORPIONMP
f6dd9fa5 1222 select USE_GENERIC_SMP_HELPERS
89c3dedf 1223 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
1da177e4
LT
1224 help
1225 This enables support for systems with more than one CPU. If you have
1226 a system with only one CPU, like most personal computers, say N. If
1227 you have a system with more than one CPU, say Y.
1228
1229 If you say N here, the kernel will run on single and multiprocessor
1230 machines, but will use only one CPU of a multiprocessor machine. If
1231 you say Y here, the kernel will run on many, but not all, single
1232 processor machines. On a single processor machine, the kernel will
1233 run faster if you say N here.
1234
03502faa 1235 See also <file:Documentation/i386/IO-APIC.txt>,
1da177e4 1236 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
50a23e6e 1237 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
1da177e4
LT
1238
1239 If you don't know what to do here, say N.
1240
f00ec48f
RK
1241config SMP_ON_UP
1242 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1243 depends on EXPERIMENTAL
1244 depends on SMP && !XIP && !THUMB2_KERNEL
1245 default y
1246 help
1247 SMP kernels contain instructions which fail on non-SMP processors.
1248 Enabling this option allows the kernel to modify itself to make
1249 these instructions safe. Disabling it allows about 1K of space
1250 savings.
1251
1252 If you don't know what to do here, say Y.
1253
a8cbcd92
RK
1254config HAVE_ARM_SCU
1255 bool
1256 depends on SMP
1257 help
1258 This option enables support for the ARM system coherency unit
1259
f32f4ce2
RK
1260config HAVE_ARM_TWD
1261 bool
1262 depends on SMP
1263 help
1264 This options enables support for the ARM timer and watchdog unit
1265
8d5796d2
LB
1266choice
1267 prompt "Memory split"
1268 default VMSPLIT_3G
1269 help
1270 Select the desired split between kernel and user memory.
1271
1272 If you are not absolutely sure what you are doing, leave this
1273 option alone!
1274
1275 config VMSPLIT_3G
1276 bool "3G/1G user/kernel split"
1277 config VMSPLIT_2G
1278 bool "2G/2G user/kernel split"
1279 config VMSPLIT_1G
1280 bool "1G/3G user/kernel split"
1281endchoice
1282
1283config PAGE_OFFSET
1284 hex
1285 default 0x40000000 if VMSPLIT_1G
1286 default 0x80000000 if VMSPLIT_2G
1287 default 0xC0000000
1288
1da177e4
LT
1289config NR_CPUS
1290 int "Maximum number of CPUs (2-32)"
1291 range 2 32
1292 depends on SMP
1293 default "4"
1294
a054a811
RK
1295config HOTPLUG_CPU
1296 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1297 depends on SMP && HOTPLUG && EXPERIMENTAL
176bfc44 1298 depends on !ARCH_MSM
a054a811
RK
1299 help
1300 Say Y here to experiment with turning CPUs off and on. CPUs
1301 can be controlled through /sys/devices/system/cpu.
1302
37ee16ae
RK
1303config LOCAL_TIMERS
1304 bool "Use local timer interrupts"
971acb9b 1305 depends on SMP
37ee16ae 1306 default y
89c3dedf 1307 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
37ee16ae
RK
1308 help
1309 Enable support for local timers on SMP platforms, rather then the
1310 legacy IPI broadcast method. Local timers allows the system
1311 accounting to be spread across the timer interval, preventing a
1312 "thundering herd" at every timer tick.
1313
d45a398f 1314source kernel/Kconfig.preempt
1da177e4 1315
f8065813
RK
1316config HZ
1317 int
49b7a491 1318 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
2192482e 1319 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
bfe65704 1320 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
5248c657 1321 default AT91_TIMER_HZ if ARCH_AT91
5da3e714 1322 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
f8065813
RK
1323 default 100
1324
16c79651
CM
1325config THUMB2_KERNEL
1326 bool "Compile the kernel in Thumb-2 mode"
1327 depends on CPU_V7 && EXPERIMENTAL
1328 select AEABI
1329 select ARM_ASM_UNIFIED
1330 help
1331 By enabling this option, the kernel will be compiled in
1332 Thumb-2 mode. A compiler/assembler that understand the unified
1333 ARM-Thumb syntax is needed.
1334
1335 If unsure, say N.
1336
0becb088
CM
1337config ARM_ASM_UNIFIED
1338 bool
1339
704bdda0
NP
1340config AEABI
1341 bool "Use the ARM EABI to compile the kernel"
1342 help
1343 This option allows for the kernel to be compiled using the latest
1344 ARM ABI (aka EABI). This is only useful if you are using a user
1345 space environment that is also compiled with EABI.
1346
1347 Since there are major incompatibilities between the legacy ABI and
1348 EABI, especially with regard to structure member alignment, this
1349 option also changes the kernel syscall calling convention to
1350 disambiguate both ABIs and allow for backward compatibility support
1351 (selected with CONFIG_OABI_COMPAT).
1352
1353 To use this you need GCC version 4.0.0 or later.
1354
6c90c872 1355config OABI_COMPAT
a73a3ff1 1356 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
61c484d4 1357 depends on AEABI && EXPERIMENTAL
6c90c872
NP
1358 default y
1359 help
1360 This option preserves the old syscall interface along with the
1361 new (ARM EABI) one. It also provides a compatibility layer to
1362 intercept syscalls that have structure arguments which layout
1363 in memory differs between the legacy ABI and the new ARM EABI
1364 (only for non "thumb" binaries). This option adds a tiny
1365 overhead to all syscalls and produces a slightly larger kernel.
1366 If you know you'll be using only pure EABI user space then you
1367 can say N here. If this option is not selected and you attempt
1368 to execute a legacy ABI binary then the result will be
1369 UNPREDICTABLE (in fact it can be predicted that it won't work
1370 at all). If in doubt say Y.
1371
eb33575c 1372config ARCH_HAS_HOLES_MEMORYMODEL
e80d6a24 1373 bool
e80d6a24 1374
05944d74
RK
1375config ARCH_SPARSEMEM_ENABLE
1376 bool
1377
07a2f737
RK
1378config ARCH_SPARSEMEM_DEFAULT
1379 def_bool ARCH_SPARSEMEM_ENABLE
1380
05944d74 1381config ARCH_SELECT_MEMORY_MODEL
be370302 1382 def_bool ARCH_SPARSEMEM_ENABLE
c80d79d7 1383
053a96ca
NP
1384config HIGHMEM
1385 bool "High Memory Support (EXPERIMENTAL)"
1386 depends on MMU && EXPERIMENTAL
1387 help
1388 The address space of ARM processors is only 4 Gigabytes large
1389 and it has to accommodate user address space, kernel address
1390 space as well as some memory mapped IO. That means that, if you
1391 have a large amount of physical memory and/or IO, not all of the
1392 memory can be "permanently mapped" by the kernel. The physical
1393 memory that is not permanently mapped is called "high memory".
1394
1395 Depending on the selected kernel/user memory split, minimum
1396 vmalloc space and actual amount of RAM, you may not need this
1397 option which should result in a slightly faster kernel.
1398
1399 If unsure, say n.
1400
65cec8e3
RK
1401config HIGHPTE
1402 bool "Allocate 2nd-level pagetables from highmem"
1403 depends on HIGHMEM
1404 depends on !OUTER_CACHE
1405
1b8873a0
JI
1406config HW_PERF_EVENTS
1407 bool "Enable hardware performance counter support for perf events"
fe166148 1408 depends on PERF_EVENTS && CPU_HAS_PMU
1b8873a0
JI
1409 default y
1410 help
1411 Enable hardware performance counter support for perf events. If
1412 disabled, perf events will use software events only.
1413
354e6f72 1414config SPARSE_IRQ
c1ba6ba3 1415 def_bool n
354e6f72 1416 help
1417 This enables support for sparse irqs. This is useful in general
1418 as most CPUs have a fairly sparse array of IRQ vectors, which
1419 the irq_desc then maps directly on to. Systems with a high
1420 number of off-chip IRQs will want to treat this as
1421 experimental until they have been independently verified.
1422
3f22ab27
DH
1423source "mm/Kconfig"
1424
c1b2d970
MD
1425config FORCE_MAX_ZONEORDER
1426 int "Maximum zone order" if ARCH_SHMOBILE
1427 range 11 64 if ARCH_SHMOBILE
1428 default "9" if SA1111
1429 default "11"
1430 help
1431 The kernel memory allocator divides physically contiguous memory
1432 blocks into "zones", where each zone is a power of two number of
1433 pages. This option selects the largest power of two that the kernel
1434 keeps in the memory allocator. If you need to allocate very large
1435 blocks of physically contiguous memory, then you may need to
1436 increase this value.
1437
1438 This config option is actually maximum order plus one. For example,
1439 a value of 11 means that the largest free memory block is 2^10 pages.
1440
1da177e4
LT
1441config LEDS
1442 bool "Timer and CPU usage LEDs"
e055d5bf 1443 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
8c8fdbc9 1444 ARCH_EBSA285 || ARCH_INTEGRATOR || \
1da177e4
LT
1445 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1446 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
73a59c1c 1447 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
25329671 1448 ARCH_AT91 || ARCH_DAVINCI || \
ff3042fb 1449 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
1da177e4
LT
1450 help
1451 If you say Y here, the LEDs on your machine will be used
1452 to provide useful information about your current system status.
1453
1454 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1455 be able to select which LEDs are active using the options below. If
1456 you are compiling a kernel for the EBSA-110 or the LART however, the
1457 red LED will simply flash regularly to indicate that the system is
1458 still functional. It is safe to say Y here if you have a CATS
1459 system, but the driver will do nothing.
1460
1461config LEDS_TIMER
1462 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
eebdf7d7
DB
1463 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1464 || MACH_OMAP_PERSEUS2
1da177e4 1465 depends on LEDS
0567a0c0 1466 depends on !GENERIC_CLOCKEVENTS
1da177e4
LT
1467 default y if ARCH_EBSA110
1468 help
1469 If you say Y here, one of the system LEDs (the green one on the
1470 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1471 will flash regularly to indicate that the system is still
1472 operational. This is mainly useful to kernel hackers who are
1473 debugging unstable kernels.
1474
1475 The LART uses the same LED for both Timer LED and CPU usage LED
1476 functions. You may choose to use both, but the Timer LED function
1477 will overrule the CPU usage LED.
1478
1479config LEDS_CPU
1480 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
eebdf7d7
DB
1481 !ARCH_OMAP) \
1482 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1483 || MACH_OMAP_PERSEUS2
1da177e4
LT
1484 depends on LEDS
1485 help
1486 If you say Y here, the red LED will be used to give a good real
1487 time indication of CPU usage, by lighting whenever the idle task
1488 is not currently executing.
1489
1490 The LART uses the same LED for both Timer LED and CPU usage LED
1491 functions. You may choose to use both, but the Timer LED function
1492 will overrule the CPU usage LED.
1493
1494config ALIGNMENT_TRAP
1495 bool
f12d0d7c 1496 depends on CPU_CP15_MMU
1da177e4 1497 default y if !ARCH_EBSA110
e119bfff 1498 select HAVE_PROC_CPU if PROC_FS
1da177e4 1499 help
84eb8d06 1500 ARM processors cannot fetch/store information which is not
1da177e4
LT
1501 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1502 address divisible by 4. On 32-bit ARM processors, these non-aligned
1503 fetch/store instructions will be emulated in software if you say
1504 here, which has a severe performance impact. This is necessary for
1505 correct operation of some network protocols. With an IP-only
1506 configuration it is safe to say N, otherwise say Y.
1507
39ec58f3
LB
1508config UACCESS_WITH_MEMCPY
1509 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1510 depends on MMU && EXPERIMENTAL
1511 default y if CPU_FEROCEON
1512 help
1513 Implement faster copy_to_user and clear_user methods for CPU
1514 cores where a 8-word STM instruction give significantly higher
1515 memory write throughput than a sequence of individual 32bit stores.
1516
1517 A possible side effect is a slight increase in scheduling latency
1518 between threads sharing the same address space if they invoke
1519 such copy operations with large buffers.
1520
1521 However, if the CPU data cache is using a write-allocate mode,
1522 this option is unlikely to provide any performance gain.
1523
70c70d97
NP
1524config SECCOMP
1525 bool
1526 prompt "Enable seccomp to safely compute untrusted bytecode"
1527 ---help---
1528 This kernel feature is useful for number crunching applications
1529 that may need to compute untrusted bytecode during their
1530 execution. By using pipes or other transports made available to
1531 the process as file descriptors supporting the read/write
1532 syscalls, it's possible to isolate those applications in
1533 their own address space using seccomp. Once seccomp is
1534 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1535 and the task is only allowed to execute a few safe syscalls
1536 defined by each seccomp mode.
1537
c743f380
NP
1538config CC_STACKPROTECTOR
1539 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1540 help
1541 This option turns on the -fstack-protector GCC feature. This
1542 feature puts, at the beginning of functions, a canary value on
1543 the stack just before the return address, and validates
1544 the value just before actually returning. Stack based buffer
1545 overflows (that need to overwrite this return address) now also
1546 overwrite the canary, which gets detected and the attack is then
1547 neutralized via a kernel panic.
1548 This feature requires gcc version 4.2 or above.
1549
73a65b3f
UKK
1550config DEPRECATED_PARAM_STRUCT
1551 bool "Provide old way to pass kernel parameters"
1552 help
1553 This was deprecated in 2001 and announced to live on for 5 years.
1554 Some old boot loaders still use this way.
1555
1da177e4
LT
1556endmenu
1557
1558menu "Boot options"
1559
1560# Compressed boot loader in ROM. Yes, we really want to ask about
1561# TEXT and BSS so we preserve their values in the config files.
1562config ZBOOT_ROM_TEXT
1563 hex "Compressed ROM boot loader base address"
1564 default "0"
1565 help
1566 The physical address at which the ROM-able zImage is to be
1567 placed in the target. Platforms which normally make use of
1568 ROM-able zImage formats normally set this to a suitable
1569 value in their defconfig file.
1570
1571 If ZBOOT_ROM is not enabled, this has no effect.
1572
1573config ZBOOT_ROM_BSS
1574 hex "Compressed ROM boot loader BSS address"
1575 default "0"
1576 help
f8c440b2
DF
1577 The base address of an area of read/write memory in the target
1578 for the ROM-able zImage which must be available while the
1579 decompressor is running. It must be large enough to hold the
1580 entire decompressed kernel plus an additional 128 KiB.
1581 Platforms which normally make use of ROM-able zImage formats
1582 normally set this to a suitable value in their defconfig file.
1da177e4
LT
1583
1584 If ZBOOT_ROM is not enabled, this has no effect.
1585
1586config ZBOOT_ROM
1587 bool "Compressed boot loader in ROM/flash"
1588 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1589 help
1590 Say Y here if you intend to execute your compressed kernel image
1591 (zImage) directly from ROM or flash. If unsure, say N.
1592
1593config CMDLINE
1594 string "Default kernel command string"
1595 default ""
1596 help
1597 On some architectures (EBSA110 and CATS), there is currently no way
1598 for the boot loader to pass arguments to the kernel. For these
1599 architectures, you should supply some command-line options at build
1600 time by entering them here. As a minimum, you should specify the
1601 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1602
92d2040d
AH
1603config CMDLINE_FORCE
1604 bool "Always use the default kernel command string"
1605 depends on CMDLINE != ""
1606 help
1607 Always use the default kernel command string, even if the boot
1608 loader passes other arguments to the kernel.
1609 This is useful if you cannot or don't want to change the
1610 command-line options your boot loader passes to the kernel.
1611
1612 If unsure, say N.
1613
1da177e4
LT
1614config XIP_KERNEL
1615 bool "Kernel Execute-In-Place from ROM"
1616 depends on !ZBOOT_ROM
1617 help
1618 Execute-In-Place allows the kernel to run from non-volatile storage
1619 directly addressable by the CPU, such as NOR flash. This saves RAM
1620 space since the text section of the kernel is not loaded from flash
1621 to RAM. Read-write sections, such as the data section and stack,
1622 are still copied to RAM. The XIP kernel is not compressed since
1623 it has to run directly from flash, so it will take more space to
1624 store it. The flash address used to link the kernel object files,
1625 and for storing it, is configuration dependent. Therefore, if you
1626 say Y here, you must know the proper physical address where to
1627 store the kernel image depending on your own flash memory usage.
1628
1629 Also note that the make target becomes "make xipImage" rather than
1630 "make zImage" or "make Image". The final kernel binary to put in
1631 ROM memory will be arch/arm/boot/xipImage.
1632
1633 If unsure, say N.
1634
1635config XIP_PHYS_ADDR
1636 hex "XIP Kernel Physical Location"
1637 depends on XIP_KERNEL
1638 default "0x00080000"
1639 help
1640 This is the physical address in your flash memory the kernel will
1641 be linked for and stored to. This address is dependent on your
1642 own flash usage.
1643
c587e4a6
RP
1644config KEXEC
1645 bool "Kexec system call (EXPERIMENTAL)"
1646 depends on EXPERIMENTAL
1647 help
1648 kexec is a system call that implements the ability to shutdown your
1649 current kernel, and to start another kernel. It is like a reboot
01dd2fbf 1650 but it is independent of the system firmware. And like a reboot
c587e4a6
RP
1651 you can start any kernel with it, not just Linux.
1652
1653 It is an ongoing process to be certain the hardware in a machine
1654 is properly shutdown, so do not be surprised if this code does not
1655 initially work for you. It may help to enable device hotplugging
1656 support.
1657
4cd9d6f7
RP
1658config ATAGS_PROC
1659 bool "Export atags in procfs"
b98d7291
UL
1660 depends on KEXEC
1661 default y
4cd9d6f7
RP
1662 help
1663 Should the atags used to boot the kernel be exported in an "atags"
1664 file in procfs. Useful with kexec.
1665
e69edc79
EM
1666config AUTO_ZRELADDR
1667 bool "Auto calculation of the decompressed kernel image address"
1668 depends on !ZBOOT_ROM && !ARCH_U300
1669 help
1670 ZRELADDR is the physical address where the decompressed kernel
1671 image will be placed. If AUTO_ZRELADDR is selected, the address
1672 will be determined at run-time by masking the current IP with
1673 0xf8000000. This assumes the zImage being placed in the first 128MB
1674 from start of memory.
1675
1da177e4
LT
1676endmenu
1677
ac9d7efc 1678menu "CPU Power Management"
1da177e4 1679
89c52ed4 1680if ARCH_HAS_CPUFREQ
1da177e4
LT
1681
1682source "drivers/cpufreq/Kconfig"
1683
64f102b6
YS
1684config CPU_FREQ_IMX
1685 tristate "CPUfreq driver for i.MX CPUs"
1686 depends on ARCH_MXC && CPU_FREQ
1687 help
1688 This enables the CPUfreq driver for i.MX CPUs.
1689
1da177e4
LT
1690config CPU_FREQ_SA1100
1691 bool
1da177e4
LT
1692
1693config CPU_FREQ_SA1110
1694 bool
1da177e4
LT
1695
1696config CPU_FREQ_INTEGRATOR
1697 tristate "CPUfreq driver for ARM Integrator CPUs"
1698 depends on ARCH_INTEGRATOR && CPU_FREQ
1699 default y
1700 help
1701 This enables the CPUfreq driver for ARM Integrator CPUs.
1702
1703 For details, take a look at <file:Documentation/cpu-freq>.
1704
1705 If in doubt, say Y.
1706
9e2697ff
RK
1707config CPU_FREQ_PXA
1708 bool
1709 depends on CPU_FREQ && ARCH_PXA && PXA25x
1710 default y
1711 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1712
b3748ddd
MB
1713config CPU_FREQ_S3C64XX
1714 bool "CPUfreq support for Samsung S3C64XX CPUs"
1715 depends on CPU_FREQ && CPU_S3C6410
1716
9d56c02a
BD
1717config CPU_FREQ_S3C
1718 bool
1719 help
1720 Internal configuration node for common cpufreq on Samsung SoC
1721
1722config CPU_FREQ_S3C24XX
1723 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1724 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1725 select CPU_FREQ_S3C
1726 help
1727 This enables the CPUfreq driver for the Samsung S3C24XX family
1728 of CPUs.
1729
1730 For details, take a look at <file:Documentation/cpu-freq>.
1731
1732 If in doubt, say N.
1733
1734config CPU_FREQ_S3C24XX_PLL
1735 bool "Support CPUfreq changing of PLL frequency"
1736 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1737 help
1738 Compile in support for changing the PLL frequency from the
1739 S3C24XX series CPUfreq driver. The PLL takes time to settle
1740 after a frequency change, so by default it is not enabled.
1741
1742 This also means that the PLL tables for the selected CPU(s) will
1743 be built which may increase the size of the kernel image.
1744
1745config CPU_FREQ_S3C24XX_DEBUG
1746 bool "Debug CPUfreq Samsung driver core"
1747 depends on CPU_FREQ_S3C24XX
1748 help
1749 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1750
1751config CPU_FREQ_S3C24XX_IODEBUG
1752 bool "Debug CPUfreq Samsung driver IO timing"
1753 depends on CPU_FREQ_S3C24XX
1754 help
1755 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1756
e6d197a6
BD
1757config CPU_FREQ_S3C24XX_DEBUGFS
1758 bool "Export debugfs for CPUFreq"
1759 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1760 help
1761 Export status information via debugfs.
1762
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LT
1763endif
1764
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RK
1765source "drivers/cpuidle/Kconfig"
1766
1767endmenu
1768
1da177e4
LT
1769menu "Floating point emulation"
1770
1771comment "At least one emulation must be selected"
1772
1773config FPE_NWFPE
1774 bool "NWFPE math emulation"
8993a44c 1775 depends on !AEABI || OABI_COMPAT
1da177e4
LT
1776 ---help---
1777 Say Y to include the NWFPE floating point emulator in the kernel.
1778 This is necessary to run most binaries. Linux does not currently
1779 support floating point hardware so you need to say Y here even if
1780 your machine has an FPA or floating point co-processor podule.
1781
1782 You may say N here if you are going to load the Acorn FPEmulator
1783 early in the bootup.
1784
1785config FPE_NWFPE_XP
1786 bool "Support extended precision"
bedf142b 1787 depends on FPE_NWFPE
1da177e4
LT
1788 help
1789 Say Y to include 80-bit support in the kernel floating-point
1790 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1791 Note that gcc does not generate 80-bit operations by default,
1792 so in most cases this option only enlarges the size of the
1793 floating point emulator without any good reason.
1794
1795 You almost surely want to say N here.
1796
1797config FPE_FASTFPE
1798 bool "FastFPE math emulation (EXPERIMENTAL)"
8993a44c 1799 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1da177e4
LT
1800 ---help---
1801 Say Y here to include the FAST floating point emulator in the kernel.
1802 This is an experimental much faster emulator which now also has full
1803 precision for the mantissa. It does not support any exceptions.
1804 It is very simple, and approximately 3-6 times faster than NWFPE.
1805
1806 It should be sufficient for most programs. It may be not suitable
1807 for scientific calculations, but you have to check this for yourself.
1808 If you do not feel you need a faster FP emulation you should better
1809 choose NWFPE.
1810
1811config VFP
1812 bool "VFP-format floating point maths"
c00d4ffd 1813 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1da177e4
LT
1814 help
1815 Say Y to include VFP support code in the kernel. This is needed
1816 if your hardware includes a VFP unit.
1817
1818 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1819 release notes and additional status information.
1820
1821 Say N if your target does not have VFP hardware.
1822
25ebee02
CM
1823config VFPv3
1824 bool
1825 depends on VFP
1826 default y if CPU_V7
1827
b5872db4
CM
1828config NEON
1829 bool "Advanced SIMD (NEON) Extension support"
1830 depends on VFPv3 && CPU_V7
1831 help
1832 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1833 Extension.
1834
1da177e4
LT
1835endmenu
1836
1837menu "Userspace binary formats"
1838
1839source "fs/Kconfig.binfmt"
1840
1841config ARTHUR
1842 tristate "RISC OS personality"
704bdda0 1843 depends on !AEABI
1da177e4
LT
1844 help
1845 Say Y here to include the kernel code necessary if you want to run
1846 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1847 experimental; if this sounds frightening, say N and sleep in peace.
1848 You can also say M here to compile this support as a module (which
1849 will be called arthur).
1850
1851endmenu
1852
1853menu "Power management options"
1854
eceab4ac 1855source "kernel/power/Kconfig"
1da177e4 1856
f4cb5700
JB
1857config ARCH_SUSPEND_POSSIBLE
1858 def_bool y
1859
1da177e4
LT
1860endmenu
1861
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SR
1862source "net/Kconfig"
1863
ac25150f 1864source "drivers/Kconfig"
1da177e4
LT
1865
1866source "fs/Kconfig"
1867
1da177e4
LT
1868source "arch/arm/Kconfig.debug"
1869
1870source "security/Kconfig"
1871
1872source "crypto/Kconfig"
1873
1874source "lib/Kconfig"
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