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ARM: S5PV310: Fix on default ZRELADDR of ARCH_S5PV310
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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
2778f620 13 select HAVE_MEMBLOCK
12b824fb 14 select RTC_LIB
75e7153a 15 select SYS_SUPPORTS_APM_EMULATION
24b44a66 16 select GENERIC_ATOMIC64 if (!CPU_32v6K)
fe166148 17 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
5cbad0eb 18 select HAVE_ARCH_KGDB
3f550096 19 select HAVE_KPROBES if (!XIP_KERNEL)
9edddaa2 20 select HAVE_KRETPROBES if (HAVE_KPROBES)
606576ce 21 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
1fe53268 22 select HAVE_GENERIC_DMA_COHERENT
e7db7b42
AT
23 select HAVE_KERNEL_GZIP
24 select HAVE_KERNEL_LZO
6e8699f7 25 select HAVE_KERNEL_LZMA
7ada189f
JI
26 select HAVE_PERF_EVENTS
27 select PERF_USE_VMALLOC
e513f8bf 28 select HAVE_REGS_AND_STACK_ACCESS_API
1da177e4
LT
29 help
30 The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a 31 licensed by ARM Ltd and targeted at embedded applications and
1da177e4 32 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a 33 manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4
LT
34 Europe. There is an ARM Linux project with a web page at
35 <http://www.arm.linux.org.uk/>.
36
1a189b97
RK
37config HAVE_PWM
38 bool
39
75e7153a
RB
40config SYS_SUPPORTS_APM_EMULATION
41 bool
42
0a938b97
DB
43config GENERIC_GPIO
44 bool
0a938b97 45
5cfc8ee0
JS
46config ARCH_USES_GETTIMEOFFSET
47 bool
48 default n
746140c7 49
0567a0c0
KH
50config GENERIC_CLOCKEVENTS
51 bool
0567a0c0 52
a8655e83
CM
53config GENERIC_CLOCKEVENTS_BROADCAST
54 bool
55 depends on GENERIC_CLOCKEVENTS
5388a6b2 56 default y if SMP
a8655e83 57
bc581770
LW
58config HAVE_TCM
59 bool
60 select GENERIC_ALLOCATOR
61
e119bfff
RK
62config HAVE_PROC_CPU
63 bool
64
5ea81769
AV
65config NO_IOPORT
66 bool
5ea81769 67
1da177e4
LT
68config EISA
69 bool
70 ---help---
71 The Extended Industry Standard Architecture (EISA) bus was
72 developed as an open alternative to the IBM MicroChannel bus.
73
74 The EISA bus provided some of the features of the IBM MicroChannel
75 bus while maintaining backward compatibility with cards made for
76 the older ISA bus. The EISA bus saw limited use between 1988 and
77 1995 when it was made obsolete by the PCI bus.
78
79 Say Y here if you are building a kernel for an EISA-based machine.
80
81 Otherwise, say N.
82
83config SBUS
84 bool
85
86config MCA
87 bool
88 help
89 MicroChannel Architecture is found in some IBM PS/2 machines and
90 laptops. It is a bus system similar to PCI or ISA. See
91 <file:Documentation/mca.txt> (and especially the web page given
92 there) before attempting to build an MCA bus kernel.
93
4a2581a0
TG
94config GENERIC_HARDIRQS
95 bool
96 default y
97
f16fb1ec
RK
98config STACKTRACE_SUPPORT
99 bool
100 default y
101
f76e9154
NP
102config HAVE_LATENCYTOP_SUPPORT
103 bool
104 depends on !SMP
105 default y
106
f16fb1ec
RK
107config LOCKDEP_SUPPORT
108 bool
109 default y
110
7ad1bcb2
RK
111config TRACE_IRQFLAGS_SUPPORT
112 bool
113 default y
114
4a2581a0
TG
115config HARDIRQS_SW_RESEND
116 bool
117 default y
118
119config GENERIC_IRQ_PROBE
120 bool
121 default y
122
95c354fe
NP
123config GENERIC_LOCKBREAK
124 bool
125 default y
126 depends on SMP && PREEMPT
127
1da177e4
LT
128config RWSEM_GENERIC_SPINLOCK
129 bool
130 default y
131
132config RWSEM_XCHGADD_ALGORITHM
133 bool
134
f0d1b0b3
DH
135config ARCH_HAS_ILOG2_U32
136 bool
f0d1b0b3
DH
137
138config ARCH_HAS_ILOG2_U64
139 bool
f0d1b0b3 140
89c52ed4
BD
141config ARCH_HAS_CPUFREQ
142 bool
143 help
144 Internal node to signify that the ARCH has CPUFREQ support
145 and that the relevant menu configurations are displayed for
146 it.
147
b89c3b16
AM
148config GENERIC_HWEIGHT
149 bool
150 default y
151
1da177e4
LT
152config GENERIC_CALIBRATE_DELAY
153 bool
154 default y
155
a08b6b79
AV
156config ARCH_MAY_HAVE_PC_FDC
157 bool
158
5ac6da66
CL
159config ZONE_DMA
160 bool
5ac6da66 161
ccd7ab7f
FT
162config NEED_DMA_MAP_STATE
163 def_bool y
164
1da177e4
LT
165config GENERIC_ISA_DMA
166 bool
167
1da177e4
LT
168config FIQ
169 bool
170
034d2f5a
AV
171config ARCH_MTD_XIP
172 bool
173
60a752ef 174config GENERIC_HARDIRQS_NO__DO_IRQ
60a752ef
PZ
175 def_bool y
176
d6d502fa
KK
177config ARM_L1_CACHE_SHIFT_6
178 bool
179 help
180 Setting ARM L1 cache line size to 64 Bytes.
181
c760fc19
HC
182config VECTORS_BASE
183 hex
6afd6fae 184 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
c760fc19
HC
185 default DRAM_BASE if REMAP_VECTORS_TO_RAM
186 default 0x00000000
187 help
188 The base address of exception vectors.
189
1da177e4
LT
190source "init/Kconfig"
191
dc52ddc0
MH
192source "kernel/Kconfig.freezer"
193
1da177e4
LT
194menu "System Type"
195
3c427975
HC
196config MMU
197 bool "MMU-based Paged Memory Management Support"
198 default y
199 help
200 Select if you want MMU-based virtualised addressing space
201 support by paged memory management. If unsure, say 'Y'.
202
ccf50e23
RK
203#
204# The "ARM system type" choice list is ordered alphabetically by option
205# text. Please add new entries in the option alphabetic order.
206#
1da177e4
LT
207choice
208 prompt "ARM system type"
6a0e2430 209 default ARCH_VERSATILE
1da177e4 210
4af6fee1
DS
211config ARCH_AAEC2000
212 bool "Agilent AAEC-2000 based"
c750815e 213 select CPU_ARM920T
4af6fee1 214 select ARM_AMBA
9483a578 215 select HAVE_CLK
5cfc8ee0 216 select ARCH_USES_GETTIMEOFFSET
4af6fee1
DS
217 help
218 This enables support for systems based on the Agilent AAEC-2000
219
220config ARCH_INTEGRATOR
221 bool "ARM Ltd. Integrator family"
222 select ARM_AMBA
89c52ed4 223 select ARCH_HAS_CPUFREQ
d72fbdf0 224 select COMMON_CLKDEV
c5a0adb5 225 select ICST
13edd86d 226 select GENERIC_CLOCKEVENTS
f4b8b319 227 select PLAT_VERSATILE
4af6fee1
DS
228 help
229 Support for ARM's Integrator platform.
230
231config ARCH_REALVIEW
232 bool "ARM Ltd. RealView family"
233 select ARM_AMBA
cf30fb4a 234 select COMMON_CLKDEV
c5a0adb5 235 select ICST
ae30ceac 236 select GENERIC_CLOCKEVENTS
eb7fffa3 237 select ARCH_WANT_OPTIONAL_GPIOLIB
f4b8b319 238 select PLAT_VERSATILE
e3887714 239 select ARM_TIMER_SP804
b56ba8aa 240 select GPIO_PL061 if GPIOLIB
4af6fee1
DS
241 help
242 This enables support for ARM Ltd RealView boards.
243
244config ARCH_VERSATILE
245 bool "ARM Ltd. Versatile family"
246 select ARM_AMBA
247 select ARM_VIC
71a06da0 248 select COMMON_CLKDEV
c5a0adb5 249 select ICST
89df1272 250 select GENERIC_CLOCKEVENTS
bbeddc43 251 select ARCH_WANT_OPTIONAL_GPIOLIB
f4b8b319 252 select PLAT_VERSATILE
e3887714 253 select ARM_TIMER_SP804
4af6fee1
DS
254 help
255 This enables support for ARM Ltd Versatile board.
256
ceade897
RK
257config ARCH_VEXPRESS
258 bool "ARM Ltd. Versatile Express family"
259 select ARCH_WANT_OPTIONAL_GPIOLIB
260 select ARM_AMBA
261 select ARM_TIMER_SP804
262 select COMMON_CLKDEV
263 select GENERIC_CLOCKEVENTS
ceade897
RK
264 select HAVE_CLK
265 select ICST
266 select PLAT_VERSATILE
267 help
268 This enables support for the ARM Ltd Versatile Express boards.
269
8fc5ffa0
AV
270config ARCH_AT91
271 bool "Atmel AT91"
f373e8c0 272 select ARCH_REQUIRE_GPIOLIB
93686ae8 273 select HAVE_CLK
5cfc8ee0 274 select ARCH_USES_GETTIMEOFFSET
4af6fee1 275 help
2b3b3516
AV
276 This enables support for systems based on the Atmel AT91RM9200,
277 AT91SAM9 and AT91CAP9 processors.
4af6fee1 278
ccf50e23
RK
279config ARCH_BCMRING
280 bool "Broadcom BCMRING"
281 depends on MMU
282 select CPU_V6
283 select ARM_AMBA
284 select COMMON_CLKDEV
ccf50e23
RK
285 select GENERIC_CLOCKEVENTS
286 select ARCH_WANT_OPTIONAL_GPIOLIB
287 help
288 Support for Broadcom's BCMRing platform.
289
1da177e4 290config ARCH_CLPS711X
4af6fee1 291 bool "Cirrus Logic CLPS711x/EP721x-based"
c750815e 292 select CPU_ARM720T
5cfc8ee0 293 select ARCH_USES_GETTIMEOFFSET
f999b8bd
MM
294 help
295 Support for Cirrus Logic 711x/721x based boards.
1da177e4 296
d94f944e
AV
297config ARCH_CNS3XXX
298 bool "Cavium Networks CNS3XXX family"
299 select CPU_V6
d94f944e
AV
300 select GENERIC_CLOCKEVENTS
301 select ARM_GIC
5f32f7a0 302 select PCI_DOMAINS if PCI
d94f944e
AV
303 help
304 Support for Cavium Networks CNS3XXX platform.
305
788c9700
RK
306config ARCH_GEMINI
307 bool "Cortina Systems Gemini"
308 select CPU_FA526
788c9700 309 select ARCH_REQUIRE_GPIOLIB
5cfc8ee0 310 select ARCH_USES_GETTIMEOFFSET
788c9700
RK
311 help
312 Support for the Cortina Systems Gemini family SoCs
313
1da177e4
LT
314config ARCH_EBSA110
315 bool "EBSA-110"
c750815e 316 select CPU_SA110
f7e68bbf 317 select ISA
c5eb2a2b 318 select NO_IOPORT
5cfc8ee0 319 select ARCH_USES_GETTIMEOFFSET
1da177e4
LT
320 help
321 This is an evaluation board for the StrongARM processor available
f6c8965a 322 from Digital. It has limited hardware on-board, including an
1da177e4
LT
323 Ethernet interface, two PCMCIA sockets, two serial ports and a
324 parallel port.
325
e7736d47
LB
326config ARCH_EP93XX
327 bool "EP93xx-based"
c750815e 328 select CPU_ARM920T
e7736d47
LB
329 select ARM_AMBA
330 select ARM_VIC
ae696fd5 331 select COMMON_CLKDEV
7444a72e 332 select ARCH_REQUIRE_GPIOLIB
eb33575c 333 select ARCH_HAS_HOLES_MEMORYMODEL
5cfc8ee0 334 select ARCH_USES_GETTIMEOFFSET
e7736d47
LB
335 help
336 This enables support for the Cirrus EP93xx series of CPUs.
337
1da177e4
LT
338config ARCH_FOOTBRIDGE
339 bool "FootBridge"
c750815e 340 select CPU_SA110
1da177e4 341 select FOOTBRIDGE
5cfc8ee0 342 select ARCH_USES_GETTIMEOFFSET
f999b8bd
MM
343 help
344 Support for systems based on the DC21285 companion chip
345 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 346
788c9700
RK
347config ARCH_MXC
348 bool "Freescale MXC/iMX-based"
788c9700 349 select GENERIC_CLOCKEVENTS
788c9700 350 select ARCH_REQUIRE_GPIOLIB
03e09cd8 351 select COMMON_CLKDEV
788c9700
RK
352 help
353 Support for Freescale MXC/iMX-based family of processors
354
7bd0f2f5 355config ARCH_STMP3XXX
356 bool "Freescale STMP3xxx"
357 select CPU_ARM926T
7bd0f2f5 358 select COMMON_CLKDEV
359 select ARCH_REQUIRE_GPIOLIB
7bd0f2f5 360 select GENERIC_CLOCKEVENTS
7bd0f2f5 361 select USB_ARCH_HAS_EHCI
362 help
363 Support for systems based on the Freescale 3xxx CPUs.
364
4af6fee1
DS
365config ARCH_NETX
366 bool "Hilscher NetX based"
c750815e 367 select CPU_ARM926T
4af6fee1 368 select ARM_VIC
2fcfe6b8 369 select GENERIC_CLOCKEVENTS
f999b8bd 370 help
4af6fee1
DS
371 This enables support for systems based on the Hilscher NetX Soc
372
373config ARCH_H720X
374 bool "Hynix HMS720x-based"
c750815e 375 select CPU_ARM720T
4af6fee1 376 select ISA_DMA_API
5cfc8ee0 377 select ARCH_USES_GETTIMEOFFSET
4af6fee1
DS
378 help
379 This enables support for systems based on the Hynix HMS720x
380
3b938be6
RK
381config ARCH_IOP13XX
382 bool "IOP13xx-based"
383 depends on MMU
c750815e 384 select CPU_XSC3
3b938be6
RK
385 select PLAT_IOP
386 select PCI
387 select ARCH_SUPPORTS_MSI
8d5796d2 388 select VMSPLIT_1G
3b938be6
RK
389 help
390 Support for Intel's IOP13XX (XScale) family of processors.
391
3f7e5815
LB
392config ARCH_IOP32X
393 bool "IOP32x-based"
a4f7e763 394 depends on MMU
c750815e 395 select CPU_XSCALE
7ae1f7ec 396 select PLAT_IOP
f7e68bbf 397 select PCI
bb2b180c 398 select ARCH_REQUIRE_GPIOLIB
f999b8bd 399 help
3f7e5815
LB
400 Support for Intel's 80219 and IOP32X (XScale) family of
401 processors.
402
403config ARCH_IOP33X
404 bool "IOP33x-based"
405 depends on MMU
c750815e 406 select CPU_XSCALE
7ae1f7ec 407 select PLAT_IOP
3f7e5815 408 select PCI
bb2b180c 409 select ARCH_REQUIRE_GPIOLIB
3f7e5815
LB
410 help
411 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 412
3b938be6
RK
413config ARCH_IXP23XX
414 bool "IXP23XX-based"
a4f7e763 415 depends on MMU
c750815e 416 select CPU_XSC3
3b938be6 417 select PCI
5cfc8ee0 418 select ARCH_USES_GETTIMEOFFSET
f999b8bd 419 help
3b938be6 420 Support for Intel's IXP23xx (XScale) family of processors.
1da177e4
LT
421
422config ARCH_IXP2000
423 bool "IXP2400/2800-based"
a4f7e763 424 depends on MMU
c750815e 425 select CPU_XSCALE
f7e68bbf 426 select PCI
5cfc8ee0 427 select ARCH_USES_GETTIMEOFFSET
f999b8bd
MM
428 help
429 Support for Intel's IXP2400/2800 (XScale) family of processors.
1da177e4 430
3b938be6
RK
431config ARCH_IXP4XX
432 bool "IXP4xx-based"
a4f7e763 433 depends on MMU
c750815e 434 select CPU_XSCALE
8858e9af 435 select GENERIC_GPIO
3b938be6 436 select GENERIC_CLOCKEVENTS
485bdde7 437 select DMABOUNCE if PCI
c4713074 438 help
3b938be6 439 Support for Intel's IXP4XX (XScale) family of processors.
c4713074 440
edabd38e
SB
441config ARCH_DOVE
442 bool "Marvell Dove"
443 select PCI
edabd38e 444 select ARCH_REQUIRE_GPIOLIB
edabd38e
SB
445 select GENERIC_CLOCKEVENTS
446 select PLAT_ORION
447 help
448 Support for the Marvell Dove SoC 88AP510
449
651c74c7
SB
450config ARCH_KIRKWOOD
451 bool "Marvell Kirkwood"
c750815e 452 select CPU_FEROCEON
651c74c7 453 select PCI
a8865655 454 select ARCH_REQUIRE_GPIOLIB
651c74c7
SB
455 select GENERIC_CLOCKEVENTS
456 select PLAT_ORION
457 help
458 Support for the following Marvell Kirkwood series SoCs:
459 88F6180, 88F6192 and 88F6281.
460
777f9beb
LB
461config ARCH_LOKI
462 bool "Marvell Loki (88RC8480)"
c750815e 463 select CPU_FEROCEON
777f9beb
LB
464 select GENERIC_CLOCKEVENTS
465 select PLAT_ORION
466 help
467 Support for the Marvell Loki (88RC8480) SoC.
468
40805949
KW
469config ARCH_LPC32XX
470 bool "NXP LPC32XX"
471 select CPU_ARM926T
472 select ARCH_REQUIRE_GPIOLIB
473 select HAVE_IDE
474 select ARM_AMBA
475 select USB_ARCH_HAS_OHCI
476 select COMMON_CLKDEV
477 select GENERIC_TIME
478 select GENERIC_CLOCKEVENTS
479 help
480 Support for the NXP LPC32XX family of processors
481
794d15b2
SS
482config ARCH_MV78XX0
483 bool "Marvell MV78xx0"
c750815e 484 select CPU_FEROCEON
794d15b2 485 select PCI
a8865655 486 select ARCH_REQUIRE_GPIOLIB
794d15b2
SS
487 select GENERIC_CLOCKEVENTS
488 select PLAT_ORION
489 help
490 Support for the following Marvell MV78xx0 series SoCs:
491 MV781x0, MV782x0.
492
9dd0b194 493config ARCH_ORION5X
585cf175
TP
494 bool "Marvell Orion"
495 depends on MMU
c750815e 496 select CPU_FEROCEON
038ee083 497 select PCI
a8865655 498 select ARCH_REQUIRE_GPIOLIB
51cbff1d 499 select GENERIC_CLOCKEVENTS
69b02f6a 500 select PLAT_ORION
585cf175 501 help
9dd0b194 502 Support for the following Marvell Orion 5x series SoCs:
d2b2a6bb 503 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
d323ade1 504 Orion-2 (5281), Orion-1-90 (6183).
585cf175 505
788c9700 506config ARCH_MMP
2f7e8fae 507 bool "Marvell PXA168/910/MMP2"
788c9700 508 depends on MMU
788c9700 509 select ARCH_REQUIRE_GPIOLIB
788c9700 510 select COMMON_CLKDEV
788c9700
RK
511 select GENERIC_CLOCKEVENTS
512 select TICK_ONESHOT
513 select PLAT_PXA
514 help
2f7e8fae 515 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
788c9700
RK
516
517config ARCH_KS8695
518 bool "Micrel/Kendin KS8695"
519 select CPU_ARM922T
98830bc9 520 select ARCH_REQUIRE_GPIOLIB
5cfc8ee0 521 select ARCH_USES_GETTIMEOFFSET
788c9700
RK
522 help
523 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
524 System-on-Chip devices.
525
526config ARCH_NS9XXX
527 bool "NetSilicon NS9xxx"
528 select CPU_ARM926T
529 select GENERIC_GPIO
788c9700
RK
530 select GENERIC_CLOCKEVENTS
531 select HAVE_CLK
532 help
533 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
534 System.
535
536 <http://www.digi.com/products/microprocessors/index.jsp>
537
538config ARCH_W90X900
539 bool "Nuvoton W90X900 CPU"
540 select CPU_ARM926T
c52d3d68 541 select ARCH_REQUIRE_GPIOLIB
0e4a34bb 542 select COMMON_CLKDEV
58b5369e 543 select GENERIC_CLOCKEVENTS
788c9700 544 help
a8bc4ead 545 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
546 At present, the w90x900 has been renamed nuc900, regarding
547 the ARM series product line, you can login the following
548 link address to know more.
549
550 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
551 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
788c9700 552
a62e9030 553config ARCH_NUC93X
554 bool "Nuvoton NUC93X CPU"
555 select CPU_ARM926T
a62e9030 556 select COMMON_CLKDEV
557 help
558 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
559 low-power and high performance MPEG-4/JPEG multimedia controller chip.
560
c5f80065
EG
561config ARCH_TEGRA
562 bool "NVIDIA Tegra"
563 select GENERIC_TIME
564 select GENERIC_CLOCKEVENTS
565 select GENERIC_GPIO
566 select HAVE_CLK
d8611961 567 select COMMON_CLKDEV
c5f80065
EG
568 select ARCH_HAS_BARRIERS if CACHE_L2X0
569 help
570 This enables support for NVIDIA Tegra based systems (Tegra APX,
571 Tegra 6xx and Tegra 2 series).
572
4af6fee1
DS
573config ARCH_PNX4008
574 bool "Philips Nexperia PNX4008 Mobile"
c750815e 575 select CPU_ARM926T
6985a5ad 576 select COMMON_CLKDEV
5cfc8ee0 577 select ARCH_USES_GETTIMEOFFSET
4af6fee1
DS
578 help
579 This enables support for Philips PNX4008 mobile platform.
580
1da177e4 581config ARCH_PXA
2c8086a5 582 bool "PXA2xx/PXA3xx-based"
a4f7e763 583 depends on MMU
034d2f5a 584 select ARCH_MTD_XIP
89c52ed4 585 select ARCH_HAS_CPUFREQ
8c3abc7d 586 select COMMON_CLKDEV
7444a72e 587 select ARCH_REQUIRE_GPIOLIB
981d0f39 588 select GENERIC_CLOCKEVENTS
a88264c2 589 select TICK_ONESHOT
bd5ce433 590 select PLAT_PXA
f999b8bd 591 help
2c8086a5 592 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
1da177e4 593
788c9700
RK
594config ARCH_MSM
595 bool "Qualcomm MSM"
4b536b8d 596 select HAVE_CLK
49cbe786 597 select GENERIC_CLOCKEVENTS
923a081c 598 select ARCH_REQUIRE_GPIOLIB
49cbe786 599 help
4b53eb4f
DW
600 Support for Qualcomm MSM/QSD based systems. This runs on the
601 apps processor of the MSM/QSD and depends on a shared memory
602 interface to the modem processor which runs the baseband
603 stack and controls some vital subsystems
604 (clock and power control, etc).
49cbe786 605
c793c1b0
MD
606config ARCH_SHMOBILE
607 bool "Renesas SH-Mobile"
608 help
609 Support for Renesas's SH-Mobile ARM platforms
610
1da177e4
LT
611config ARCH_RPC
612 bool "RiscPC"
613 select ARCH_ACORN
614 select FIQ
615 select TIMER_ACORN
a08b6b79 616 select ARCH_MAY_HAVE_PC_FDC
341eb781 617 select HAVE_PATA_PLATFORM
065909b9 618 select ISA_DMA_API
5ea81769 619 select NO_IOPORT
07f841b7 620 select ARCH_SPARSEMEM_ENABLE
5cfc8ee0 621 select ARCH_USES_GETTIMEOFFSET
1da177e4
LT
622 help
623 On the Acorn Risc-PC, Linux can support the internal IDE disk and
624 CD-ROM interface, serial and parallel port, and the floppy drive.
625
626config ARCH_SA1100
627 bool "SA1100-based"
c750815e 628 select CPU_SA1100
f7e68bbf 629 select ISA
05944d74 630 select ARCH_SPARSEMEM_ENABLE
034d2f5a 631 select ARCH_MTD_XIP
89c52ed4 632 select ARCH_HAS_CPUFREQ
1937f5b9 633 select CPU_FREQ
3e238be2 634 select GENERIC_CLOCKEVENTS
9483a578 635 select HAVE_CLK
3e238be2 636 select TICK_ONESHOT
7444a72e 637 select ARCH_REQUIRE_GPIOLIB
f999b8bd
MM
638 help
639 Support for StrongARM 11x0 based boards.
1da177e4
LT
640
641config ARCH_S3C2410
63b1f51b 642 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
0a938b97 643 select GENERIC_GPIO
9d56c02a 644 select ARCH_HAS_CPUFREQ
9483a578 645 select HAVE_CLK
5cfc8ee0 646 select ARCH_USES_GETTIMEOFFSET
4b623926 647 select HAVE_S3C2410_I2C
1da177e4
LT
648 help
649 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
650 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
f6c8965a 651 the Samsung SMDK2410 development board (and derivatives).
1da177e4 652
63b1f51b
BD
653 Note, the S3C2416 and the S3C2450 are so close that they even share
654 the same SoC ID code. This means that there is no seperate machine
655 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
656
a08ab637
BD
657config ARCH_S3C64XX
658 bool "Samsung S3C64XX"
89f1fa08 659 select PLAT_SAMSUNG
89f0ce72 660 select CPU_V6
89f0ce72 661 select ARM_VIC
a08ab637 662 select HAVE_CLK
89f0ce72 663 select NO_IOPORT
5cfc8ee0 664 select ARCH_USES_GETTIMEOFFSET
89c52ed4 665 select ARCH_HAS_CPUFREQ
89f0ce72
BD
666 select ARCH_REQUIRE_GPIOLIB
667 select SAMSUNG_CLKSRC
668 select SAMSUNG_IRQ_VIC_TIMER
669 select SAMSUNG_IRQ_UART
670 select S3C_GPIO_TRACK
671 select S3C_GPIO_PULL_UPDOWN
672 select S3C_GPIO_CFG_S3C24XX
673 select S3C_GPIO_CFG_S3C64XX
674 select S3C_DEV_NAND
675 select USB_ARCH_HAS_OHCI
676 select SAMSUNG_GPIOLIB_4BIT
4b623926 677 select HAVE_S3C2410_I2C
d8653d9f 678 select HAVE_S3C2410_WATCHDOG
a08ab637
BD
679 help
680 Samsung S3C64XX series based systems
681
c4ffccdd
KK
682config ARCH_S5P6440
683 bool "Samsung S5P6440"
684 select CPU_V6
685 select GENERIC_GPIO
686 select HAVE_CLK
d8653d9f 687 select HAVE_S3C2410_WATCHDOG
925c68cd 688 select ARCH_USES_GETTIMEOFFSET
4b623926 689 select HAVE_S3C2410_I2C
03eb2749 690 select HAVE_S3C_RTC
c4ffccdd
KK
691 help
692 Samsung S5P6440 CPU based systems
693
550db7f1
KK
694config ARCH_S5P6442
695 bool "Samsung S5P6442"
696 select CPU_V6
697 select GENERIC_GPIO
698 select HAVE_CLK
925c68cd 699 select ARCH_USES_GETTIMEOFFSET
d8653d9f 700 select HAVE_S3C2410_WATCHDOG
550db7f1
KK
701 help
702 Samsung S5P6442 CPU based systems
703
acc84707
MS
704config ARCH_S5PC100
705 bool "Samsung S5PC100"
5a7652f2
BM
706 select GENERIC_GPIO
707 select HAVE_CLK
708 select CPU_V7
d6d502fa 709 select ARM_L1_CACHE_SHIFT_6
925c68cd 710 select ARCH_USES_GETTIMEOFFSET
4b623926 711 select HAVE_S3C2410_I2C
03eb2749 712 select HAVE_S3C_RTC
d8653d9f 713 select HAVE_S3C2410_WATCHDOG
5a7652f2 714 help
acc84707 715 Samsung S5PC100 series based systems
5a7652f2 716
170f4e42
KK
717config ARCH_S5PV210
718 bool "Samsung S5PV210/S5PC110"
719 select CPU_V7
720 select GENERIC_GPIO
721 select HAVE_CLK
722 select ARM_L1_CACHE_SHIFT_6
925c68cd 723 select ARCH_USES_GETTIMEOFFSET
4b623926 724 select HAVE_S3C2410_I2C
03eb2749 725 select HAVE_S3C_RTC
d8653d9f 726 select HAVE_S3C2410_WATCHDOG
170f4e42
KK
727 help
728 Samsung S5PV210/S5PC110 series based systems
729
cc0e72b8
CY
730config ARCH_S5PV310
731 bool "Samsung S5PV310/S5PC210"
732 select CPU_V7
733 select GENERIC_GPIO
734 select HAVE_CLK
735 select GENERIC_CLOCKEVENTS
736 help
737 Samsung S5PV310 series based systems
738
1da177e4
LT
739config ARCH_SHARK
740 bool "Shark"
c750815e 741 select CPU_SA110
f7e68bbf
RK
742 select ISA
743 select ISA_DMA
3bca103a 744 select ZONE_DMA
f7e68bbf 745 select PCI
5cfc8ee0 746 select ARCH_USES_GETTIMEOFFSET
f999b8bd
MM
747 help
748 Support for the StrongARM based Digital DNARD machine, also known
749 as "Shark" (<http://www.shark-linux.de/shark.html>).
1da177e4
LT
750
751config ARCH_LH7A40X
752 bool "Sharp LH7A40X"
c750815e 753 select CPU_ARM922T
4ba3f7c5 754 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
5cfc8ee0 755 select ARCH_USES_GETTIMEOFFSET
1da177e4
LT
756 help
757 Say Y here for systems based on one of the Sharp LH7A40X
758 System on a Chip processors. These CPUs include an ARM922T
759 core with a wide array of integrated devices for
760 hand-held and low-power applications.
761
d98aac75
LW
762config ARCH_U300
763 bool "ST-Ericsson U300 Series"
764 depends on MMU
765 select CPU_ARM926T
bc581770 766 select HAVE_TCM
d98aac75
LW
767 select ARM_AMBA
768 select ARM_VIC
d98aac75 769 select GENERIC_CLOCKEVENTS
d98aac75
LW
770 select COMMON_CLKDEV
771 select GENERIC_GPIO
772 help
773 Support for ST-Ericsson U300 series mobile platforms.
774
ccf50e23
RK
775config ARCH_U8500
776 bool "ST-Ericsson U8500 Series"
777 select CPU_V7
778 select ARM_AMBA
ccf50e23
RK
779 select GENERIC_CLOCKEVENTS
780 select COMMON_CLKDEV
94bdc0e2 781 select ARCH_REQUIRE_GPIOLIB
ccf50e23
RK
782 help
783 Support for ST-Ericsson's Ux500 architecture
784
785config ARCH_NOMADIK
786 bool "STMicroelectronics Nomadik"
787 select ARM_AMBA
788 select ARM_VIC
789 select CPU_ARM926T
ccf50e23 790 select COMMON_CLKDEV
ccf50e23 791 select GENERIC_CLOCKEVENTS
ccf50e23
RK
792 select ARCH_REQUIRE_GPIOLIB
793 help
794 Support for the Nomadik platform by ST-Ericsson
795
7c6337e2
KH
796config ARCH_DAVINCI
797 bool "TI DaVinci"
7c6337e2 798 select GENERIC_CLOCKEVENTS
dce1115b 799 select ARCH_REQUIRE_GPIOLIB
3bca103a 800 select ZONE_DMA
9232fcc9 801 select HAVE_IDE
c5b736d0 802 select COMMON_CLKDEV
20e9969b 803 select GENERIC_ALLOCATOR
ae88e05a 804 select ARCH_HAS_HOLES_MEMORYMODEL
7c6337e2
KH
805 help
806 Support for TI's DaVinci platform.
807
3b938be6
RK
808config ARCH_OMAP
809 bool "TI OMAP"
9483a578 810 select HAVE_CLK
7444a72e 811 select ARCH_REQUIRE_GPIOLIB
89c52ed4 812 select ARCH_HAS_CPUFREQ
06cad098 813 select GENERIC_CLOCKEVENTS
9af915da 814 select ARCH_HAS_HOLES_MEMORYMODEL
3b938be6
RK
815 help
816 Support for TI's OMAP platform (OMAP1 and OMAP2).
817
cee37e50 818config PLAT_SPEAR
819 bool "ST SPEAr"
820 select ARM_AMBA
821 select ARCH_REQUIRE_GPIOLIB
822 select COMMON_CLKDEV
823 select GENERIC_CLOCKEVENTS
cee37e50 824 select HAVE_CLK
825 help
826 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
827
1da177e4
LT
828endchoice
829
ccf50e23
RK
830#
831# This is sorted alphabetically by mach-* pathname. However, plat-*
832# Kconfigs may be included either alphabetically (according to the
833# plat- suffix) or along side the corresponding mach-* source.
834#
95b8f20f
RK
835source "arch/arm/mach-aaec2000/Kconfig"
836
837source "arch/arm/mach-at91/Kconfig"
838
839source "arch/arm/mach-bcmring/Kconfig"
840
1da177e4
LT
841source "arch/arm/mach-clps711x/Kconfig"
842
d94f944e
AV
843source "arch/arm/mach-cns3xxx/Kconfig"
844
95b8f20f
RK
845source "arch/arm/mach-davinci/Kconfig"
846
847source "arch/arm/mach-dove/Kconfig"
848
e7736d47
LB
849source "arch/arm/mach-ep93xx/Kconfig"
850
1da177e4
LT
851source "arch/arm/mach-footbridge/Kconfig"
852
59d3a193
PZ
853source "arch/arm/mach-gemini/Kconfig"
854
95b8f20f
RK
855source "arch/arm/mach-h720x/Kconfig"
856
1da177e4
LT
857source "arch/arm/mach-integrator/Kconfig"
858
3f7e5815
LB
859source "arch/arm/mach-iop32x/Kconfig"
860
861source "arch/arm/mach-iop33x/Kconfig"
1da177e4 862
285f5fa7
DW
863source "arch/arm/mach-iop13xx/Kconfig"
864
1da177e4
LT
865source "arch/arm/mach-ixp4xx/Kconfig"
866
867source "arch/arm/mach-ixp2000/Kconfig"
868
c4713074
LB
869source "arch/arm/mach-ixp23xx/Kconfig"
870
95b8f20f
RK
871source "arch/arm/mach-kirkwood/Kconfig"
872
873source "arch/arm/mach-ks8695/Kconfig"
874
875source "arch/arm/mach-lh7a40x/Kconfig"
876
777f9beb
LB
877source "arch/arm/mach-loki/Kconfig"
878
40805949
KW
879source "arch/arm/mach-lpc32xx/Kconfig"
880
95b8f20f
RK
881source "arch/arm/mach-msm/Kconfig"
882
794d15b2
SS
883source "arch/arm/mach-mv78xx0/Kconfig"
884
95b8f20f 885source "arch/arm/plat-mxc/Kconfig"
1da177e4 886
95b8f20f 887source "arch/arm/mach-netx/Kconfig"
49cbe786 888
95b8f20f
RK
889source "arch/arm/mach-nomadik/Kconfig"
890source "arch/arm/plat-nomadik/Kconfig"
891
892source "arch/arm/mach-ns9xxx/Kconfig"
1da177e4 893
186f93ea 894source "arch/arm/mach-nuc93x/Kconfig"
1da177e4 895
d48af15e
TL
896source "arch/arm/plat-omap/Kconfig"
897
898source "arch/arm/mach-omap1/Kconfig"
1da177e4 899
1dbae815
TL
900source "arch/arm/mach-omap2/Kconfig"
901
9dd0b194 902source "arch/arm/mach-orion5x/Kconfig"
585cf175 903
95b8f20f
RK
904source "arch/arm/mach-pxa/Kconfig"
905source "arch/arm/plat-pxa/Kconfig"
585cf175 906
95b8f20f
RK
907source "arch/arm/mach-mmp/Kconfig"
908
909source "arch/arm/mach-realview/Kconfig"
910
911source "arch/arm/mach-sa1100/Kconfig"
edabd38e 912
cf383678 913source "arch/arm/plat-samsung/Kconfig"
a21765a7 914source "arch/arm/plat-s3c24xx/Kconfig"
c4ffccdd 915source "arch/arm/plat-s5p/Kconfig"
a21765a7 916
cee37e50 917source "arch/arm/plat-spear/Kconfig"
a21765a7
BD
918
919if ARCH_S3C2410
920source "arch/arm/mach-s3c2400/Kconfig"
1da177e4 921source "arch/arm/mach-s3c2410/Kconfig"
a21765a7 922source "arch/arm/mach-s3c2412/Kconfig"
f1290a49 923source "arch/arm/mach-s3c2416/Kconfig"
a21765a7 924source "arch/arm/mach-s3c2440/Kconfig"
e4d06e39 925source "arch/arm/mach-s3c2443/Kconfig"
a21765a7 926endif
1da177e4 927
a08ab637 928if ARCH_S3C64XX
431107ea 929source "arch/arm/mach-s3c64xx/Kconfig"
a08ab637
BD
930endif
931
c4ffccdd
KK
932source "arch/arm/mach-s5p6440/Kconfig"
933
550db7f1 934source "arch/arm/mach-s5p6442/Kconfig"
7bd0f2f5 935
5a7652f2 936source "arch/arm/mach-s5pc100/Kconfig"
5a7652f2 937
170f4e42
KK
938source "arch/arm/mach-s5pv210/Kconfig"
939
cc0e72b8
CY
940source "arch/arm/mach-s5pv310/Kconfig"
941
882d01f9 942source "arch/arm/mach-shmobile/Kconfig"
52c543f9 943
882d01f9 944source "arch/arm/plat-stmp3xxx/Kconfig"
9e73c84c 945
c5f80065
EG
946source "arch/arm/mach-tegra/Kconfig"
947
95b8f20f 948source "arch/arm/mach-u300/Kconfig"
1da177e4 949
95b8f20f 950source "arch/arm/mach-ux500/Kconfig"
1da177e4
LT
951
952source "arch/arm/mach-versatile/Kconfig"
953
ceade897
RK
954source "arch/arm/mach-vexpress/Kconfig"
955
7ec80ddf 956source "arch/arm/mach-w90x900/Kconfig"
957
1da177e4
LT
958# Definitions to make life easier
959config ARCH_ACORN
960 bool
961
7ae1f7ec
LB
962config PLAT_IOP
963 bool
469d3044 964 select GENERIC_CLOCKEVENTS
7ae1f7ec 965
69b02f6a
LB
966config PLAT_ORION
967 bool
968
bd5ce433
EM
969config PLAT_PXA
970 bool
971
f4b8b319
RK
972config PLAT_VERSATILE
973 bool
974
e3887714
RK
975config ARM_TIMER_SP804
976 bool
977
1da177e4
LT
978source arch/arm/mm/Kconfig
979
afe4b25e
LB
980config IWMMXT
981 bool "Enable iWMMXt support"
40305a58
EM
982 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
983 default y if PXA27x || PXA3xx || ARCH_MMP
afe4b25e
LB
984 help
985 Enable support for iWMMXt context switching at run time if
986 running on a CPU that supports it.
987
1da177e4
LT
988# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
989config XSCALE_PMU
990 bool
991 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
992 default y
993
0f4f0672 994config CPU_HAS_PMU
8954bb0d
WD
995 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
996 (!ARCH_OMAP3 || OMAP3_EMU)
0f4f0672
JI
997 default y
998 bool
999
3b93e7b0
HC
1000if !MMU
1001source "arch/arm/Kconfig-nommu"
1002endif
1003
9cba3ccc
CM
1004config ARM_ERRATA_411920
1005 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
1006 depends on CPU_V6 && !SMP
1007 help
1008 Invalidation of the Instruction Cache operation can
1009 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1010 It does not affect the MPCore. This option enables the ARM Ltd.
1011 recommended workaround.
1012
7ce236fc
CM
1013config ARM_ERRATA_430973
1014 bool "ARM errata: Stale prediction on replaced interworking branch"
1015 depends on CPU_V7
1016 help
1017 This option enables the workaround for the 430973 Cortex-A8
1018 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1019 interworking branch is replaced with another code sequence at the
1020 same virtual address, whether due to self-modifying code or virtual
1021 to physical address re-mapping, Cortex-A8 does not recover from the
1022 stale interworking branch prediction. This results in Cortex-A8
1023 executing the new code sequence in the incorrect ARM or Thumb state.
1024 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1025 and also flushes the branch target cache at every context switch.
1026 Note that setting specific bits in the ACTLR register may not be
1027 available in non-secure mode.
1028
855c551f
CM
1029config ARM_ERRATA_458693
1030 bool "ARM errata: Processor deadlock when a false hazard is created"
1031 depends on CPU_V7
1032 help
1033 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1034 erratum. For very specific sequences of memory operations, it is
1035 possible for a hazard condition intended for a cache line to instead
1036 be incorrectly associated with a different cache line. This false
1037 hazard might then cause a processor deadlock. The workaround enables
1038 the L1 caching of the NEON accesses and disables the PLD instruction
1039 in the ACTLR register. Note that setting specific bits in the ACTLR
1040 register may not be available in non-secure mode.
1041
0516e464
CM
1042config ARM_ERRATA_460075
1043 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1044 depends on CPU_V7
1045 help
1046 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1047 erratum. Any asynchronous access to the L2 cache may encounter a
1048 situation in which recent store transactions to the L2 cache are lost
1049 and overwritten with stale memory contents from external memory. The
1050 workaround disables the write-allocate mode for the L2 cache via the
1051 ACTLR register. Note that setting specific bits in the ACTLR register
1052 may not be available in non-secure mode.
1053
9e65582a
SS
1054config PL310_ERRATA_588369
1055 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1056 depends on CACHE_L2X0 && ARCH_OMAP4
1057 help
1058 The PL310 L2 cache controller implements three types of Clean &
1059 Invalidate maintenance operations: by Physical Address
1060 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1061 They are architecturally defined to behave as the execution of a
1062 clean operation followed immediately by an invalidate operation,
1063 both performing to the same memory location. This functionality
1064 is not correctly implemented in PL310 as clean lines are not
1065 invalidated as a result of these operations. Note that this errata
1066 uses Texas Instrument's secure monitor api.
cdf357f1
WD
1067
1068config ARM_ERRATA_720789
1069 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1070 depends on CPU_V7 && SMP
1071 help
1072 This option enables the workaround for the 720789 Cortex-A9 (prior to
1073 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1074 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1075 As a consequence of this erratum, some TLB entries which should be
1076 invalidated are not, resulting in an incoherency in the system page
1077 tables. The workaround changes the TLB flushing routines to invalidate
1078 entries regardless of the ASID.
1da177e4
LT
1079endmenu
1080
1081source "arch/arm/common/Kconfig"
1082
1da177e4
LT
1083menu "Bus support"
1084
1085config ARM_AMBA
1086 bool
1087
1088config ISA
1089 bool
1da177e4
LT
1090 help
1091 Find out whether you have ISA slots on your motherboard. ISA is the
1092 name of a bus system, i.e. the way the CPU talks to the other stuff
1093 inside your box. Other bus systems are PCI, EISA, MicroChannel
1094 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1095 newer boards don't support it. If you have ISA, say Y, otherwise N.
1096
065909b9 1097# Select ISA DMA controller support
1da177e4
LT
1098config ISA_DMA
1099 bool
065909b9 1100 select ISA_DMA_API
1da177e4 1101
065909b9 1102# Select ISA DMA interface
5cae841b
AV
1103config ISA_DMA_API
1104 bool
5cae841b 1105
1da177e4 1106config PCI
5f32f7a0 1107 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE || ARCH_CNS3XXX
1da177e4
LT
1108 help
1109 Find out whether you have a PCI motherboard. PCI is the name of a
1110 bus system, i.e. the way the CPU talks to the other stuff inside
1111 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1112 VESA. If you have PCI, say Y, otherwise N.
1113
52882173
AV
1114config PCI_DOMAINS
1115 bool
1116 depends on PCI
1117
36e23590
MW
1118config PCI_SYSCALL
1119 def_bool PCI
1120
1da177e4
LT
1121# Select the host bridge type
1122config PCI_HOST_VIA82C505
1123 bool
1124 depends on PCI && ARCH_SHARK
1125 default y
1126
a0113a99
MR
1127config PCI_HOST_ITE8152
1128 bool
1129 depends on PCI && MACH_ARMCORE
1130 default y
1131 select DMABOUNCE
1132
1da177e4
LT
1133source "drivers/pci/Kconfig"
1134
1135source "drivers/pcmcia/Kconfig"
1136
1137endmenu
1138
1139menu "Kernel Features"
1140
0567a0c0
KH
1141source "kernel/time/Kconfig"
1142
1da177e4
LT
1143config SMP
1144 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
42578c82 1145 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
59ac59f6 1146 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
0b019a41 1147 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
bc28248e 1148 depends on GENERIC_CLOCKEVENTS
f6dd9fa5 1149 select USE_GENERIC_SMP_HELPERS
0b019a41
RK
1150 select HAVE_ARM_SCU if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 ||\
1151 ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4
1da177e4
LT
1152 help
1153 This enables support for systems with more than one CPU. If you have
1154 a system with only one CPU, like most personal computers, say N. If
1155 you have a system with more than one CPU, say Y.
1156
1157 If you say N here, the kernel will run on single and multiprocessor
1158 machines, but will use only one CPU of a multiprocessor machine. If
1159 you say Y here, the kernel will run on many, but not all, single
1160 processor machines. On a single processor machine, the kernel will
1161 run faster if you say N here.
1162
03502faa 1163 See also <file:Documentation/i386/IO-APIC.txt>,
1da177e4
LT
1164 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1165 <http://www.linuxdoc.org/docs.html#howto>.
1166
1167 If you don't know what to do here, say N.
1168
a8cbcd92
RK
1169config HAVE_ARM_SCU
1170 bool
1171 depends on SMP
1172 help
1173 This option enables support for the ARM system coherency unit
1174
f32f4ce2
RK
1175config HAVE_ARM_TWD
1176 bool
1177 depends on SMP
1178 help
1179 This options enables support for the ARM timer and watchdog unit
1180
8d5796d2
LB
1181choice
1182 prompt "Memory split"
1183 default VMSPLIT_3G
1184 help
1185 Select the desired split between kernel and user memory.
1186
1187 If you are not absolutely sure what you are doing, leave this
1188 option alone!
1189
1190 config VMSPLIT_3G
1191 bool "3G/1G user/kernel split"
1192 config VMSPLIT_2G
1193 bool "2G/2G user/kernel split"
1194 config VMSPLIT_1G
1195 bool "1G/3G user/kernel split"
1196endchoice
1197
1198config PAGE_OFFSET
1199 hex
1200 default 0x40000000 if VMSPLIT_1G
1201 default 0x80000000 if VMSPLIT_2G
1202 default 0xC0000000
1203
1da177e4
LT
1204config NR_CPUS
1205 int "Maximum number of CPUs (2-32)"
1206 range 2 32
1207 depends on SMP
1208 default "4"
1209
a054a811
RK
1210config HOTPLUG_CPU
1211 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1212 depends on SMP && HOTPLUG && EXPERIMENTAL
1213 help
1214 Say Y here to experiment with turning CPUs off and on. CPUs
1215 can be controlled through /sys/devices/system/cpu.
1216
37ee16ae
RK
1217config LOCAL_TIMERS
1218 bool "Use local timer interrupts"
42578c82 1219 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
bde28b84 1220 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
0b019a41 1221 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
37ee16ae 1222 default y
0b019a41
RK
1223 select HAVE_ARM_TWD if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 || \
1224 ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS
37ee16ae
RK
1225 help
1226 Enable support for local timers on SMP platforms, rather then the
1227 legacy IPI broadcast method. Local timers allows the system
1228 accounting to be spread across the timer interval, preventing a
1229 "thundering herd" at every timer tick.
1230
d45a398f 1231source kernel/Kconfig.preempt
1da177e4 1232
f8065813
RK
1233config HZ
1234 int
2192482e
RK
1235 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || \
1236 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
bfe65704 1237 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
5248c657 1238 default AT91_TIMER_HZ if ARCH_AT91
5da3e714 1239 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
f8065813
RK
1240 default 100
1241
16c79651
CM
1242config THUMB2_KERNEL
1243 bool "Compile the kernel in Thumb-2 mode"
1244 depends on CPU_V7 && EXPERIMENTAL
1245 select AEABI
1246 select ARM_ASM_UNIFIED
1247 help
1248 By enabling this option, the kernel will be compiled in
1249 Thumb-2 mode. A compiler/assembler that understand the unified
1250 ARM-Thumb syntax is needed.
1251
1252 If unsure, say N.
1253
0becb088
CM
1254config ARM_ASM_UNIFIED
1255 bool
1256
704bdda0
NP
1257config AEABI
1258 bool "Use the ARM EABI to compile the kernel"
1259 help
1260 This option allows for the kernel to be compiled using the latest
1261 ARM ABI (aka EABI). This is only useful if you are using a user
1262 space environment that is also compiled with EABI.
1263
1264 Since there are major incompatibilities between the legacy ABI and
1265 EABI, especially with regard to structure member alignment, this
1266 option also changes the kernel syscall calling convention to
1267 disambiguate both ABIs and allow for backward compatibility support
1268 (selected with CONFIG_OABI_COMPAT).
1269
1270 To use this you need GCC version 4.0.0 or later.
1271
6c90c872 1272config OABI_COMPAT
a73a3ff1 1273 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
61c484d4 1274 depends on AEABI && EXPERIMENTAL
6c90c872
NP
1275 default y
1276 help
1277 This option preserves the old syscall interface along with the
1278 new (ARM EABI) one. It also provides a compatibility layer to
1279 intercept syscalls that have structure arguments which layout
1280 in memory differs between the legacy ABI and the new ARM EABI
1281 (only for non "thumb" binaries). This option adds a tiny
1282 overhead to all syscalls and produces a slightly larger kernel.
1283 If you know you'll be using only pure EABI user space then you
1284 can say N here. If this option is not selected and you attempt
1285 to execute a legacy ABI binary then the result will be
1286 UNPREDICTABLE (in fact it can be predicted that it won't work
1287 at all). If in doubt say Y.
1288
eb33575c 1289config ARCH_HAS_HOLES_MEMORYMODEL
e80d6a24 1290 bool
e80d6a24 1291
05944d74
RK
1292config ARCH_SPARSEMEM_ENABLE
1293 bool
1294
07a2f737
RK
1295config ARCH_SPARSEMEM_DEFAULT
1296 def_bool ARCH_SPARSEMEM_ENABLE
1297
05944d74 1298config ARCH_SELECT_MEMORY_MODEL
be370302 1299 def_bool ARCH_SPARSEMEM_ENABLE
c80d79d7 1300
053a96ca
NP
1301config HIGHMEM
1302 bool "High Memory Support (EXPERIMENTAL)"
1303 depends on MMU && EXPERIMENTAL
1304 help
1305 The address space of ARM processors is only 4 Gigabytes large
1306 and it has to accommodate user address space, kernel address
1307 space as well as some memory mapped IO. That means that, if you
1308 have a large amount of physical memory and/or IO, not all of the
1309 memory can be "permanently mapped" by the kernel. The physical
1310 memory that is not permanently mapped is called "high memory".
1311
1312 Depending on the selected kernel/user memory split, minimum
1313 vmalloc space and actual amount of RAM, you may not need this
1314 option which should result in a slightly faster kernel.
1315
1316 If unsure, say n.
1317
65cec8e3
RK
1318config HIGHPTE
1319 bool "Allocate 2nd-level pagetables from highmem"
1320 depends on HIGHMEM
1321 depends on !OUTER_CACHE
1322
1b8873a0
JI
1323config HW_PERF_EVENTS
1324 bool "Enable hardware performance counter support for perf events"
fe166148 1325 depends on PERF_EVENTS && CPU_HAS_PMU
1b8873a0
JI
1326 default y
1327 help
1328 Enable hardware performance counter support for perf events. If
1329 disabled, perf events will use software events only.
1330
354e6f72 1331config SPARSE_IRQ
c1ba6ba3 1332 def_bool n
354e6f72 1333 help
1334 This enables support for sparse irqs. This is useful in general
1335 as most CPUs have a fairly sparse array of IRQ vectors, which
1336 the irq_desc then maps directly on to. Systems with a high
1337 number of off-chip IRQs will want to treat this as
1338 experimental until they have been independently verified.
1339
3f22ab27
DH
1340source "mm/Kconfig"
1341
c1b2d970
MD
1342config FORCE_MAX_ZONEORDER
1343 int "Maximum zone order" if ARCH_SHMOBILE
1344 range 11 64 if ARCH_SHMOBILE
1345 default "9" if SA1111
1346 default "11"
1347 help
1348 The kernel memory allocator divides physically contiguous memory
1349 blocks into "zones", where each zone is a power of two number of
1350 pages. This option selects the largest power of two that the kernel
1351 keeps in the memory allocator. If you need to allocate very large
1352 blocks of physically contiguous memory, then you may need to
1353 increase this value.
1354
1355 This config option is actually maximum order plus one. For example,
1356 a value of 11 means that the largest free memory block is 2^10 pages.
1357
1da177e4
LT
1358config LEDS
1359 bool "Timer and CPU usage LEDs"
e055d5bf 1360 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
8c8fdbc9 1361 ARCH_EBSA285 || ARCH_INTEGRATOR || \
1da177e4
LT
1362 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1363 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
73a59c1c 1364 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
25329671 1365 ARCH_AT91 || ARCH_DAVINCI || \
ff3042fb 1366 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
1da177e4
LT
1367 help
1368 If you say Y here, the LEDs on your machine will be used
1369 to provide useful information about your current system status.
1370
1371 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1372 be able to select which LEDs are active using the options below. If
1373 you are compiling a kernel for the EBSA-110 or the LART however, the
1374 red LED will simply flash regularly to indicate that the system is
1375 still functional. It is safe to say Y here if you have a CATS
1376 system, but the driver will do nothing.
1377
1378config LEDS_TIMER
1379 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
eebdf7d7
DB
1380 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1381 || MACH_OMAP_PERSEUS2
1da177e4 1382 depends on LEDS
0567a0c0 1383 depends on !GENERIC_CLOCKEVENTS
1da177e4
LT
1384 default y if ARCH_EBSA110
1385 help
1386 If you say Y here, one of the system LEDs (the green one on the
1387 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1388 will flash regularly to indicate that the system is still
1389 operational. This is mainly useful to kernel hackers who are
1390 debugging unstable kernels.
1391
1392 The LART uses the same LED for both Timer LED and CPU usage LED
1393 functions. You may choose to use both, but the Timer LED function
1394 will overrule the CPU usage LED.
1395
1396config LEDS_CPU
1397 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
eebdf7d7
DB
1398 !ARCH_OMAP) \
1399 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1400 || MACH_OMAP_PERSEUS2
1da177e4
LT
1401 depends on LEDS
1402 help
1403 If you say Y here, the red LED will be used to give a good real
1404 time indication of CPU usage, by lighting whenever the idle task
1405 is not currently executing.
1406
1407 The LART uses the same LED for both Timer LED and CPU usage LED
1408 functions. You may choose to use both, but the Timer LED function
1409 will overrule the CPU usage LED.
1410
1411config ALIGNMENT_TRAP
1412 bool
f12d0d7c 1413 depends on CPU_CP15_MMU
1da177e4 1414 default y if !ARCH_EBSA110
e119bfff 1415 select HAVE_PROC_CPU if PROC_FS
1da177e4 1416 help
84eb8d06 1417 ARM processors cannot fetch/store information which is not
1da177e4
LT
1418 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1419 address divisible by 4. On 32-bit ARM processors, these non-aligned
1420 fetch/store instructions will be emulated in software if you say
1421 here, which has a severe performance impact. This is necessary for
1422 correct operation of some network protocols. With an IP-only
1423 configuration it is safe to say N, otherwise say Y.
1424
39ec58f3
LB
1425config UACCESS_WITH_MEMCPY
1426 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1427 depends on MMU && EXPERIMENTAL
1428 default y if CPU_FEROCEON
1429 help
1430 Implement faster copy_to_user and clear_user methods for CPU
1431 cores where a 8-word STM instruction give significantly higher
1432 memory write throughput than a sequence of individual 32bit stores.
1433
1434 A possible side effect is a slight increase in scheduling latency
1435 between threads sharing the same address space if they invoke
1436 such copy operations with large buffers.
1437
1438 However, if the CPU data cache is using a write-allocate mode,
1439 this option is unlikely to provide any performance gain.
1440
c743f380
NP
1441config CC_STACKPROTECTOR
1442 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1443 help
1444 This option turns on the -fstack-protector GCC feature. This
1445 feature puts, at the beginning of functions, a canary value on
1446 the stack just before the return address, and validates
1447 the value just before actually returning. Stack based buffer
1448 overflows (that need to overwrite this return address) now also
1449 overwrite the canary, which gets detected and the attack is then
1450 neutralized via a kernel panic.
1451 This feature requires gcc version 4.2 or above.
1452
73a65b3f
UKK
1453config DEPRECATED_PARAM_STRUCT
1454 bool "Provide old way to pass kernel parameters"
1455 help
1456 This was deprecated in 2001 and announced to live on for 5 years.
1457 Some old boot loaders still use this way.
1458
1da177e4
LT
1459endmenu
1460
1461menu "Boot options"
1462
1463# Compressed boot loader in ROM. Yes, we really want to ask about
1464# TEXT and BSS so we preserve their values in the config files.
1465config ZBOOT_ROM_TEXT
1466 hex "Compressed ROM boot loader base address"
1467 default "0"
1468 help
1469 The physical address at which the ROM-able zImage is to be
1470 placed in the target. Platforms which normally make use of
1471 ROM-able zImage formats normally set this to a suitable
1472 value in their defconfig file.
1473
1474 If ZBOOT_ROM is not enabled, this has no effect.
1475
1476config ZBOOT_ROM_BSS
1477 hex "Compressed ROM boot loader BSS address"
1478 default "0"
1479 help
f8c440b2
DF
1480 The base address of an area of read/write memory in the target
1481 for the ROM-able zImage which must be available while the
1482 decompressor is running. It must be large enough to hold the
1483 entire decompressed kernel plus an additional 128 KiB.
1484 Platforms which normally make use of ROM-able zImage formats
1485 normally set this to a suitable value in their defconfig file.
1da177e4
LT
1486
1487 If ZBOOT_ROM is not enabled, this has no effect.
1488
1489config ZBOOT_ROM
1490 bool "Compressed boot loader in ROM/flash"
1491 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1492 help
1493 Say Y here if you intend to execute your compressed kernel image
1494 (zImage) directly from ROM or flash. If unsure, say N.
1495
1496config CMDLINE
1497 string "Default kernel command string"
1498 default ""
1499 help
1500 On some architectures (EBSA110 and CATS), there is currently no way
1501 for the boot loader to pass arguments to the kernel. For these
1502 architectures, you should supply some command-line options at build
1503 time by entering them here. As a minimum, you should specify the
1504 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1505
92d2040d
AH
1506config CMDLINE_FORCE
1507 bool "Always use the default kernel command string"
1508 depends on CMDLINE != ""
1509 help
1510 Always use the default kernel command string, even if the boot
1511 loader passes other arguments to the kernel.
1512 This is useful if you cannot or don't want to change the
1513 command-line options your boot loader passes to the kernel.
1514
1515 If unsure, say N.
1516
1da177e4
LT
1517config XIP_KERNEL
1518 bool "Kernel Execute-In-Place from ROM"
1519 depends on !ZBOOT_ROM
1520 help
1521 Execute-In-Place allows the kernel to run from non-volatile storage
1522 directly addressable by the CPU, such as NOR flash. This saves RAM
1523 space since the text section of the kernel is not loaded from flash
1524 to RAM. Read-write sections, such as the data section and stack,
1525 are still copied to RAM. The XIP kernel is not compressed since
1526 it has to run directly from flash, so it will take more space to
1527 store it. The flash address used to link the kernel object files,
1528 and for storing it, is configuration dependent. Therefore, if you
1529 say Y here, you must know the proper physical address where to
1530 store the kernel image depending on your own flash memory usage.
1531
1532 Also note that the make target becomes "make xipImage" rather than
1533 "make zImage" or "make Image". The final kernel binary to put in
1534 ROM memory will be arch/arm/boot/xipImage.
1535
1536 If unsure, say N.
1537
1538config XIP_PHYS_ADDR
1539 hex "XIP Kernel Physical Location"
1540 depends on XIP_KERNEL
1541 default "0x00080000"
1542 help
1543 This is the physical address in your flash memory the kernel will
1544 be linked for and stored to. This address is dependent on your
1545 own flash usage.
1546
c587e4a6
RP
1547config KEXEC
1548 bool "Kexec system call (EXPERIMENTAL)"
1549 depends on EXPERIMENTAL
1550 help
1551 kexec is a system call that implements the ability to shutdown your
1552 current kernel, and to start another kernel. It is like a reboot
01dd2fbf 1553 but it is independent of the system firmware. And like a reboot
c587e4a6
RP
1554 you can start any kernel with it, not just Linux.
1555
1556 It is an ongoing process to be certain the hardware in a machine
1557 is properly shutdown, so do not be surprised if this code does not
1558 initially work for you. It may help to enable device hotplugging
1559 support.
1560
4cd9d6f7
RP
1561config ATAGS_PROC
1562 bool "Export atags in procfs"
b98d7291
UL
1563 depends on KEXEC
1564 default y
4cd9d6f7
RP
1565 help
1566 Should the atags used to boot the kernel be exported in an "atags"
1567 file in procfs. Useful with kexec.
1568
e69edc79
EM
1569config AUTO_ZRELADDR
1570 bool "Auto calculation of the decompressed kernel image address"
1571 depends on !ZBOOT_ROM && !ARCH_U300
1572 help
1573 ZRELADDR is the physical address where the decompressed kernel
1574 image will be placed. If AUTO_ZRELADDR is selected, the address
1575 will be determined at run-time by masking the current IP with
1576 0xf8000000. This assumes the zImage being placed in the first 128MB
1577 from start of memory.
1578
1579config ZRELADDR
1580 hex "Physical address of the decompressed kernel image"
1581 depends on !AUTO_ZRELADDR
1582 default 0x00008000 if ARCH_BCMRING ||\
1583 ARCH_CNS3XXX ||\
1584 ARCH_DOVE ||\
1585 ARCH_EBSA110 ||\
1586 ARCH_FOOTBRIDGE ||\
1587 ARCH_INTEGRATOR ||\
1588 ARCH_IOP13XX ||\
1589 ARCH_IOP33X ||\
1590 ARCH_IXP2000 ||\
1591 ARCH_IXP23XX ||\
1592 ARCH_IXP4XX ||\
1593 ARCH_KIRKWOOD ||\
1594 ARCH_KS8695 ||\
1595 ARCH_LOKI ||\
1596 ARCH_MMP ||\
1597 ARCH_MV78XX0 ||\
1598 ARCH_NOMADIK ||\
1599 ARCH_NUC93X ||\
1600 ARCH_NS9XXX ||\
1601 ARCH_ORION5X ||\
1602 ARCH_SPEAR3XX ||\
1603 ARCH_SPEAR6XX ||\
1604 ARCH_U8500 ||\
1605 ARCH_VERSATILE ||\
1606 ARCH_W90X900
1607 default 0x08008000 if ARCH_MX1 ||\
1608 ARCH_SHARK
1609 default 0x10008000 if ARCH_MSM ||\
1610 ARCH_OMAP1 ||\
1611 ARCH_RPC
1612 default 0x20008000 if ARCH_S5P6440 ||\
1613 ARCH_S5P6442 ||\
1614 ARCH_S5PC100 ||\
1615 ARCH_S5PV210
1616 default 0x30008000 if ARCH_S3C2410 ||\
1617 ARCH_S3C2400 ||\
1618 ARCH_S3C2412 ||\
1619 ARCH_S3C2416 ||\
1620 ARCH_S3C2440 ||\
1621 ARCH_S3C2443
1622 default 0x40008000 if ARCH_STMP378X ||\
1623 ARCH_STMP37XX ||\
1624 ARCH_SH7372 ||\
68c1dbcb
KK
1625 ARCH_SH7377 ||\
1626 ARCH_S5PV310
e69edc79
EM
1627 default 0x50008000 if ARCH_S3C64XX ||\
1628 ARCH_SH7367
1629 default 0x60008000 if ARCH_VEXPRESS
1630 default 0x80008000 if ARCH_MX25 ||\
1631 ARCH_MX3 ||\
1632 ARCH_NETX ||\
1633 ARCH_OMAP2PLUS ||\
1634 ARCH_PNX4008
1635 default 0x90008000 if ARCH_MX5 ||\
1636 ARCH_MX91231
1637 default 0xa0008000 if ARCH_IOP32X ||\
1638 ARCH_PXA ||\
1639 MACH_MX27
1640 default 0xc0008000 if ARCH_LH7A40X ||\
1641 MACH_MX21
1642 default 0xf0008000 if ARCH_AAEC2000 ||\
1643 ARCH_L7200
1644 default 0xc0028000 if ARCH_CLPS711X
1645 default 0x70008000 if ARCH_AT91 && (ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
1646 default 0x20008000 if ARCH_AT91 && !(ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
1647 default 0xc0008000 if ARCH_DAVINCI && ARCH_DAVINCI_DA8XX
1648 default 0x80008000 if ARCH_DAVINCI && !ARCH_DAVINCI_DA8XX
1649 default 0x00008000 if ARCH_EP93XX && EP93XX_SDCE3_SYNC_PHYS_OFFSET
1650 default 0xc0008000 if ARCH_EP93XX && EP93XX_SDCE0_PHYS_OFFSET
1651 default 0xd0008000 if ARCH_EP93XX && EP93XX_SDCE1_PHYS_OFFSET
1652 default 0xe0008000 if ARCH_EP93XX && EP93XX_SDCE2_PHYS_OFFSET
1653 default 0xf0008000 if ARCH_EP93XX && EP93XX_SDCE3_ASYNC_PHYS_OFFSET
1654 default 0x00008000 if ARCH_GEMINI && GEMINI_MEM_SWAP
1655 default 0x10008000 if ARCH_GEMINI && !GEMINI_MEM_SWAP
1656 default 0x70008000 if ARCH_REALVIEW && REALVIEW_HIGH_PHYS_OFFSET
1657 default 0x00008000 if ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET
1658 default 0xc0208000 if ARCH_SA1100 && SA1111
1659 default 0xc0008000 if ARCH_SA1100 && !SA1111
1660 default 0x30108000 if ARCH_S3C2410 && PM_H1940
1661 default 0x28E08000 if ARCH_U300 && MACH_U300_SINGLE_RAM
1662 default 0x48008000 if ARCH_U300 && !MACH_U300_SINGLE_RAM
1663 help
1664 ZRELADDR is the physical address where the decompressed kernel
1665 image will be placed. ZRELADDR has to be specified when the
1666 assumption of AUTO_ZRELADDR is not valid, or when ZBOOT_ROM is
1667 selected.
1668
1da177e4
LT
1669endmenu
1670
ac9d7efc 1671menu "CPU Power Management"
1da177e4 1672
89c52ed4 1673if ARCH_HAS_CPUFREQ
1da177e4
LT
1674
1675source "drivers/cpufreq/Kconfig"
1676
1677config CPU_FREQ_SA1100
1678 bool
1da177e4
LT
1679
1680config CPU_FREQ_SA1110
1681 bool
1da177e4
LT
1682
1683config CPU_FREQ_INTEGRATOR
1684 tristate "CPUfreq driver for ARM Integrator CPUs"
1685 depends on ARCH_INTEGRATOR && CPU_FREQ
1686 default y
1687 help
1688 This enables the CPUfreq driver for ARM Integrator CPUs.
1689
1690 For details, take a look at <file:Documentation/cpu-freq>.
1691
1692 If in doubt, say Y.
1693
9e2697ff
RK
1694config CPU_FREQ_PXA
1695 bool
1696 depends on CPU_FREQ && ARCH_PXA && PXA25x
1697 default y
1698 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1699
b3748ddd
MB
1700config CPU_FREQ_S3C64XX
1701 bool "CPUfreq support for Samsung S3C64XX CPUs"
1702 depends on CPU_FREQ && CPU_S3C6410
1703
9d56c02a
BD
1704config CPU_FREQ_S3C
1705 bool
1706 help
1707 Internal configuration node for common cpufreq on Samsung SoC
1708
1709config CPU_FREQ_S3C24XX
1710 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1711 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1712 select CPU_FREQ_S3C
1713 help
1714 This enables the CPUfreq driver for the Samsung S3C24XX family
1715 of CPUs.
1716
1717 For details, take a look at <file:Documentation/cpu-freq>.
1718
1719 If in doubt, say N.
1720
1721config CPU_FREQ_S3C24XX_PLL
1722 bool "Support CPUfreq changing of PLL frequency"
1723 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1724 help
1725 Compile in support for changing the PLL frequency from the
1726 S3C24XX series CPUfreq driver. The PLL takes time to settle
1727 after a frequency change, so by default it is not enabled.
1728
1729 This also means that the PLL tables for the selected CPU(s) will
1730 be built which may increase the size of the kernel image.
1731
1732config CPU_FREQ_S3C24XX_DEBUG
1733 bool "Debug CPUfreq Samsung driver core"
1734 depends on CPU_FREQ_S3C24XX
1735 help
1736 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1737
1738config CPU_FREQ_S3C24XX_IODEBUG
1739 bool "Debug CPUfreq Samsung driver IO timing"
1740 depends on CPU_FREQ_S3C24XX
1741 help
1742 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1743
e6d197a6
BD
1744config CPU_FREQ_S3C24XX_DEBUGFS
1745 bool "Export debugfs for CPUFreq"
1746 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1747 help
1748 Export status information via debugfs.
1749
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LT
1750endif
1751
ac9d7efc
RK
1752source "drivers/cpuidle/Kconfig"
1753
1754endmenu
1755
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LT
1756menu "Floating point emulation"
1757
1758comment "At least one emulation must be selected"
1759
1760config FPE_NWFPE
1761 bool "NWFPE math emulation"
8993a44c 1762 depends on !AEABI || OABI_COMPAT
1da177e4
LT
1763 ---help---
1764 Say Y to include the NWFPE floating point emulator in the kernel.
1765 This is necessary to run most binaries. Linux does not currently
1766 support floating point hardware so you need to say Y here even if
1767 your machine has an FPA or floating point co-processor podule.
1768
1769 You may say N here if you are going to load the Acorn FPEmulator
1770 early in the bootup.
1771
1772config FPE_NWFPE_XP
1773 bool "Support extended precision"
bedf142b 1774 depends on FPE_NWFPE
1da177e4
LT
1775 help
1776 Say Y to include 80-bit support in the kernel floating-point
1777 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1778 Note that gcc does not generate 80-bit operations by default,
1779 so in most cases this option only enlarges the size of the
1780 floating point emulator without any good reason.
1781
1782 You almost surely want to say N here.
1783
1784config FPE_FASTFPE
1785 bool "FastFPE math emulation (EXPERIMENTAL)"
8993a44c 1786 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1da177e4
LT
1787 ---help---
1788 Say Y here to include the FAST floating point emulator in the kernel.
1789 This is an experimental much faster emulator which now also has full
1790 precision for the mantissa. It does not support any exceptions.
1791 It is very simple, and approximately 3-6 times faster than NWFPE.
1792
1793 It should be sufficient for most programs. It may be not suitable
1794 for scientific calculations, but you have to check this for yourself.
1795 If you do not feel you need a faster FP emulation you should better
1796 choose NWFPE.
1797
1798config VFP
1799 bool "VFP-format floating point maths"
c00d4ffd 1800 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1da177e4
LT
1801 help
1802 Say Y to include VFP support code in the kernel. This is needed
1803 if your hardware includes a VFP unit.
1804
1805 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1806 release notes and additional status information.
1807
1808 Say N if your target does not have VFP hardware.
1809
25ebee02
CM
1810config VFPv3
1811 bool
1812 depends on VFP
1813 default y if CPU_V7
1814
b5872db4
CM
1815config NEON
1816 bool "Advanced SIMD (NEON) Extension support"
1817 depends on VFPv3 && CPU_V7
1818 help
1819 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1820 Extension.
1821
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LT
1822endmenu
1823
1824menu "Userspace binary formats"
1825
1826source "fs/Kconfig.binfmt"
1827
1828config ARTHUR
1829 tristate "RISC OS personality"
704bdda0 1830 depends on !AEABI
1da177e4
LT
1831 help
1832 Say Y here to include the kernel code necessary if you want to run
1833 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1834 experimental; if this sounds frightening, say N and sleep in peace.
1835 You can also say M here to compile this support as a module (which
1836 will be called arthur).
1837
1838endmenu
1839
1840menu "Power management options"
1841
eceab4ac 1842source "kernel/power/Kconfig"
1da177e4 1843
f4cb5700
JB
1844config ARCH_SUSPEND_POSSIBLE
1845 def_bool y
1846
1da177e4
LT
1847endmenu
1848
d5950b43
SR
1849source "net/Kconfig"
1850
ac25150f 1851source "drivers/Kconfig"
1da177e4
LT
1852
1853source "fs/Kconfig"
1854
1da177e4
LT
1855source "arch/arm/Kconfig.debug"
1856
1857source "security/Kconfig"
1858
1859source "crypto/Kconfig"
1860
1861source "lib/Kconfig"