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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
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
David Woodhousee17c6d52008-06-17 12:19:34 +010011 select HAVE_AOUT
Adrian Bunk2064c942008-04-28 23:44:43 +020012 select HAVE_IDE
Alessandro Zummo12b824f2006-03-27 01:16:35 -080013 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000014 select SYS_SUPPORTS_APM_EMULATION
Will Deacon24b44a62010-01-20 19:05:07 +010015 select GENERIC_ATOMIC64 if (!CPU_32v6K)
Will Deaconfe166142010-04-30 11:37:51 +010016 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060017 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050018 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080019 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040020 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040021 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080022 select HAVE_KERNEL_GZIP
23 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010024 select HAVE_KERNEL_LZMA
Jamie Iles7ada1892010-02-02 20:24:58 +010025 select HAVE_PERF_EVENTS
26 select PERF_USE_VMALLOC
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 help
28 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000029 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070030 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000031 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 Europe. There is an ARM Linux project with a web page at
33 <http://www.arm.linux.org.uk/>.
34
Russell King1a189b92008-04-13 21:41:55 +010035config HAVE_PWM
36 bool
37
Ralf Baechle75e71532007-02-09 17:08:58 +000038config SYS_SUPPORTS_APM_EMULATION
39 bool
40
David Brownell0a938b92007-03-05 00:30:18 -080041config GENERIC_GPIO
42 bool
David Brownell0a938b92007-03-05 00:30:18 -080043
Kevin Hilman746140c2006-09-22 00:16:30 +010044config GENERIC_TIME
45 bool
John Stultz5cfc8ee2010-03-24 00:22:36 +000046 default y
47
48config ARCH_USES_GETTIMEOFFSET
49 bool
50 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010051
Kevin Hilman0567a0c2007-03-13 20:29:24 +010052config GENERIC_CLOCKEVENTS
53 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010054
Catalin Marinasa8655e82008-02-04 17:30:57 +010055config GENERIC_CLOCKEVENTS_BROADCAST
56 bool
57 depends on GENERIC_CLOCKEVENTS
58 default y if SMP && !LOCAL_TIMERS
59
Linus Walleijbc581772009-09-15 17:30:37 +010060config HAVE_TCM
61 bool
62 select GENERIC_ALLOCATOR
63
Russell Kinge119bff2010-01-10 17:23:29 +000064config HAVE_PROC_CPU
65 bool
66
Al Viro5ea81762007-02-11 15:41:31 +000067config NO_IOPORT
68 bool
Al Viro5ea81762007-02-11 15:41:31 +000069
Linus Torvalds1da177e2005-04-16 15:20:36 -070070config EISA
71 bool
72 ---help---
73 The Extended Industry Standard Architecture (EISA) bus was
74 developed as an open alternative to the IBM MicroChannel bus.
75
76 The EISA bus provided some of the features of the IBM MicroChannel
77 bus while maintaining backward compatibility with cards made for
78 the older ISA bus. The EISA bus saw limited use between 1988 and
79 1995 when it was made obsolete by the PCI bus.
80
81 Say Y here if you are building a kernel for an EISA-based machine.
82
83 Otherwise, say N.
84
85config SBUS
86 bool
87
88config MCA
89 bool
90 help
91 MicroChannel Architecture is found in some IBM PS/2 machines and
92 laptops. It is a bus system similar to PCI or ISA. See
93 <file:Documentation/mca.txt> (and especially the web page given
94 there) before attempting to build an MCA bus kernel.
95
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010096config GENERIC_HARDIRQS
97 bool
98 default y
99
Russell Kingf16fb1e2007-04-28 09:59:37 +0100100config STACKTRACE_SUPPORT
101 bool
102 default y
103
Nicolas Pitref76e9152008-04-24 01:31:46 -0400104config HAVE_LATENCYTOP_SUPPORT
105 bool
106 depends on !SMP
107 default y
108
Russell Kingf16fb1e2007-04-28 09:59:37 +0100109config LOCKDEP_SUPPORT
110 bool
111 default y
112
Russell King7ad1bcb2006-08-27 12:07:02 +0100113config TRACE_IRQFLAGS_SUPPORT
114 bool
115 default y
116
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100117config HARDIRQS_SW_RESEND
118 bool
119 default y
120
121config GENERIC_IRQ_PROBE
122 bool
123 default y
124
Nick Piggin95c354f2008-01-30 13:31:20 +0100125config GENERIC_LOCKBREAK
126 bool
127 default y
128 depends on SMP && PREEMPT
129
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130config RWSEM_GENERIC_SPINLOCK
131 bool
132 default y
133
134config RWSEM_XCHGADD_ALGORITHM
135 bool
136
David Howellsf0d1b0b2006-12-08 02:37:49 -0800137config ARCH_HAS_ILOG2_U32
138 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800139
140config ARCH_HAS_ILOG2_U64
141 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800142
Ben Dooks89c52ed2009-07-30 23:23:24 +0100143config ARCH_HAS_CPUFREQ
144 bool
145 help
146 Internal node to signify that the ARCH has CPUFREQ support
147 and that the relevant menu configurations are displayed for
148 it.
149
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800150config GENERIC_HWEIGHT
151 bool
152 default y
153
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154config GENERIC_CALIBRATE_DELAY
155 bool
156 default y
157
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100158config ARCH_MAY_HAVE_PC_FDC
159 bool
160
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800161config ZONE_DMA
162 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800163
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800164config NEED_DMA_MAP_STATE
165 def_bool y
166
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167config GENERIC_ISA_DMA
168 bool
169
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170config FIQ
171 bool
172
Al Viro034d2f52005-12-19 16:27:59 -0500173config ARCH_MTD_XIP
174 bool
175
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100176config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100177 def_bool y
178
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100179config ARM_L1_CACHE_SHIFT_6
180 bool
181 help
182 Setting ARM L1 cache line size to 64 Bytes.
183
Hyok S. Choic760fc12006-03-27 15:18:50 +0100184config VECTORS_BASE
185 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900186 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100187 default DRAM_BASE if REMAP_VECTORS_TO_RAM
188 default 0x00000000
189 help
190 The base address of exception vectors.
191
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192source "init/Kconfig"
193
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700194source "kernel/Kconfig.freezer"
195
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196menu "System Type"
197
Hyok S. Choi3c427972009-07-24 12:35:00 +0100198config MMU
199 bool "MMU-based Paged Memory Management Support"
200 default y
201 help
202 Select if you want MMU-based virtualised addressing space
203 support by paged memory management. If unsure, say 'Y'.
204
Russell Kingccf50e22010-03-15 19:03:06 +0000205#
206# The "ARM system type" choice list is ordered alphabetically by option
207# text. Please add new entries in the option alphabetic order.
208#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209choice
210 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000211 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100213config ARCH_AAEC2000
214 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000215 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100216 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700217 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000218 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100219 help
220 This enables support for systems based on the Agilent AAEC-2000
221
222config ARCH_INTEGRATOR
223 bool "ARM Ltd. Integrator family"
224 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100225 select ARCH_HAS_CPUFREQ
Russell Kingd72fbdf2008-11-08 20:08:08 +0000226 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000227 select ICST
Russell King13edd862010-01-15 21:49:23 +0000228 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000229 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100230 help
231 Support for ARM's Integrator platform.
232
233config ARCH_REALVIEW
234 bool "ARM Ltd. RealView family"
235 select ARM_AMBA
Russell Kingcf30fb42008-11-08 20:05:55 +0000236 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000237 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100238 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100239 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000240 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000241 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100242 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100243 help
244 This enables support for ARM Ltd RealView boards.
245
246config ARCH_VERSATILE
247 bool "ARM Ltd. Versatile family"
248 select ARM_AMBA
249 select ARM_VIC
Russell King71a06da2008-11-08 20:13:53 +0000250 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000251 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100252 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100253 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000254 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000255 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100256 help
257 This enables support for ARM Ltd Versatile board.
258
Russell Kingceade892010-02-11 21:44:53 +0000259config ARCH_VEXPRESS
260 bool "ARM Ltd. Versatile Express family"
261 select ARCH_WANT_OPTIONAL_GPIOLIB
262 select ARM_AMBA
263 select ARM_TIMER_SP804
264 select COMMON_CLKDEV
265 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000266 select HAVE_CLK
267 select ICST
268 select PLAT_VERSATILE
269 help
270 This enables support for the ARM Ltd Versatile Express boards.
271
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100272config ARCH_AT91
273 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100274 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700275 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000276 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100277 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100278 This enables support for systems based on the Atmel AT91RM9200,
279 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100280
Russell Kingccf50e22010-03-15 19:03:06 +0000281config ARCH_BCMRING
282 bool "Broadcom BCMRING"
283 depends on MMU
284 select CPU_V6
285 select ARM_AMBA
286 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000287 select GENERIC_CLOCKEVENTS
288 select ARCH_WANT_OPTIONAL_GPIOLIB
289 help
290 Support for Broadcom's BCMRing platform.
291
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100293 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000294 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000295 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000296 help
297 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300299config ARCH_CNS3XXX
300 bool "Cavium Networks CNS3XXX family"
301 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300302 select GENERIC_CLOCKEVENTS
303 select ARM_GIC
304 help
305 Support for Cavium Networks CNS3XXX platform.
306
Russell King788c9702009-04-26 14:21:59 +0100307config ARCH_GEMINI
308 bool "Cortina Systems Gemini"
309 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100310 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000311 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100312 help
313 Support for the Cortina Systems Gemini family SoCs
314
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315config ARCH_EBSA110
316 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000317 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100318 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000319 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000320 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321 help
322 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000323 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 Ethernet interface, two PCMCIA sockets, two serial ports and a
325 parallel port.
326
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000327config ARCH_EP93XX
328 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000329 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000330 select ARM_AMBA
331 select ARM_VIC
Russell Kingae696fd2008-11-30 17:11:49 +0000332 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700333 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100334 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000335 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000336 help
337 This enables support for the Cirrus EP93xx series of CPUs.
338
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339config ARCH_FOOTBRIDGE
340 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000341 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000343 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000344 help
345 Support for systems based on the DC21285 companion chip
346 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347
Russell King788c9702009-04-26 14:21:59 +0100348config ARCH_MXC
349 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100350 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100351 select ARCH_REQUIRE_GPIOLIB
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100352 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100353 help
354 Support for Freescale MXC/iMX-based family of processors
355
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100356config ARCH_STMP3XXX
357 bool "Freescale STMP3xxx"
358 select CPU_ARM926T
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100359 select COMMON_CLKDEV
360 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100361 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100362 select USB_ARCH_HAS_EHCI
363 help
364 Support for systems based on the Freescale 3xxx CPUs.
365
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100366config ARCH_NETX
367 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000368 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100369 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100370 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000371 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100372 This enables support for systems based on the Hilscher NetX Soc
373
374config ARCH_H720X
375 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000376 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100377 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000378 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100379 help
380 This enables support for systems based on the Hynix HMS720x
381
Russell King3b938be2007-05-12 11:25:44 +0100382config ARCH_IOP13XX
383 bool "IOP13xx-based"
384 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000385 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100386 select PLAT_IOP
387 select PCI
388 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100389 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100390 help
391 Support for Intel's IOP13XX (XScale) family of processors.
392
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100393config ARCH_IOP32X
394 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100395 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000396 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100397 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100398 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100399 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000400 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100401 Support for Intel's 80219 and IOP32X (XScale) family of
402 processors.
403
404config ARCH_IOP33X
405 bool "IOP33x-based"
406 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000407 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100408 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100409 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100410 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100411 help
412 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413
Russell King3b938be2007-05-12 11:25:44 +0100414config ARCH_IXP23XX
415 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100416 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000417 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100418 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000419 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100420 help
Russell King3b938be2007-05-12 11:25:44 +0100421 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422
423config ARCH_IXP2000
424 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100425 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000426 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100427 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000428 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000429 help
430 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431
Russell King3b938be2007-05-12 11:25:44 +0100432config ARCH_IXP4XX
433 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100434 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000435 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100436 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100437 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100438 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100439 help
Russell King3b938be2007-05-12 11:25:44 +0100440 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100441
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442config ARCH_L7200
443 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000444 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445 select FIQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000446 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447 help
448 Say Y here if you intend to run this kernel on a LinkUp Systems
449 L7200 Software Development Board which uses an ARM720T processor.
450 Information on this board can be obtained at:
451
452 <http://www.linkupsys.com/>
453
454 If you have any questions or comments about the Linux kernel port
455 to this board, send e-mail to <sjhill@cotw.com>.
456
Saeed Bisharaedabd382009-08-06 15:12:43 +0300457config ARCH_DOVE
458 bool "Marvell Dove"
459 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300460 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300461 select GENERIC_CLOCKEVENTS
462 select PLAT_ORION
463 help
464 Support for the Marvell Dove SoC 88AP510
465
Saeed Bishara651c74c2008-06-22 22:45:06 +0200466config ARCH_KIRKWOOD
467 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000468 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200469 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700470 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200471 select GENERIC_CLOCKEVENTS
472 select PLAT_ORION
473 help
474 Support for the following Marvell Kirkwood series SoCs:
475 88F6180, 88F6192 and 88F6281.
476
Russell King788c9702009-04-26 14:21:59 +0100477config ARCH_LOKI
478 bool "Marvell Loki (88RC8480)"
479 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100480 select GENERIC_CLOCKEVENTS
481 select PLAT_ORION
482 help
483 Support for the Marvell Loki (88RC8480) SoC.
484
485config ARCH_MV78XX0
486 bool "Marvell MV78xx0"
487 select CPU_FEROCEON
488 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700489 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100490 select GENERIC_CLOCKEVENTS
491 select PLAT_ORION
492 help
493 Support for the following Marvell MV78xx0 series SoCs:
494 MV781x0, MV782x0.
495
496config ARCH_ORION5X
497 bool "Marvell Orion"
498 depends on MMU
499 select CPU_FEROCEON
500 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700501 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100502 select GENERIC_CLOCKEVENTS
503 select PLAT_ORION
504 help
505 Support for the following Marvell Orion 5x series SoCs:
506 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
507 Orion-2 (5281), Orion-1-90 (6183).
508
509config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500510 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100511 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100512 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100513 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100514 select GENERIC_CLOCKEVENTS
515 select TICK_ONESHOT
516 select PLAT_PXA
517 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500518 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100519
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100520config ARCH_KS8695
521 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000522 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100523 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000524 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100525 help
526 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
527 System-on-Chip devices.
528
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100529config ARCH_NS9XXX
530 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000531 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100532 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100533 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700534 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100535 help
536 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
537 System.
538
539 <http://www.digi.com/products/microprocessors/index.jsp>
540
Russell King788c9702009-04-26 14:21:59 +0100541config ARCH_W90X900
542 bool "Nuvoton W90X900 CPU"
543 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100544 select ARCH_REQUIRE_GPIOLIB
wanzongshun0e4a34b2009-06-10 15:50:44 +0100545 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100546 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200547 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100548 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
549 At present, the w90x900 has been renamed nuc900, regarding
550 the ARM series product line, you can login the following
551 link address to know more.
552
553 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
554 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400555
wanzongshuna62e9032009-12-31 15:06:05 +0100556config ARCH_NUC93X
557 bool "Nuvoton NUC93X CPU"
558 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100559 select COMMON_CLKDEV
560 help
561 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
562 low-power and high performance MPEG-4/JPEG multimedia controller chip.
563
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100564config ARCH_PNX4008
565 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000566 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000567 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000568 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100569 help
570 This enables support for Philips PNX4008 mobile platform.
571
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700573 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100574 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500575 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100576 select ARCH_HAS_CPUFREQ
Russell King8c3abc72008-11-08 20:25:21 +0000577 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700578 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100579 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000580 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800581 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000582 help
eric miao2c8086a2007-09-11 19:13:17 -0700583 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584
Russell King788c9702009-04-26 14:21:59 +0100585config ARCH_MSM
586 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500587 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800588 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800589 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800590 Support for Qualcomm MSM/QSD based systems. This runs on the
591 apps processor of the MSM/QSD and depends on a shared memory
592 interface to the modem processor which runs the baseband
593 stack and controls some vital subsystems
594 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800595
Magnus Dammc793c1b2010-02-05 11:14:49 +0000596config ARCH_SHMOBILE
597 bool "Renesas SH-Mobile"
598 help
599 Support for Renesas's SH-Mobile ARM platforms
600
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601config ARCH_RPC
602 bool "RiscPC"
603 select ARCH_ACORN
604 select FIQ
605 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100606 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100607 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000608 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000609 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100610 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000611 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612 help
613 On the Acorn Risc-PC, Linux can support the internal IDE disk and
614 CD-ROM interface, serial and parallel port, and the floppy drive.
615
616config ARCH_SA1100
617 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000618 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100619 select ISA
Russell King05944d72006-11-30 20:43:51 +0000620 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500621 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100622 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000623 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100624 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700625 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100626 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700627 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000628 help
629 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630
631config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900632 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800633 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100634 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700635 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000636 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637 help
638 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
639 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000640 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641
Ben Dooks63b1f512010-04-30 16:32:26 +0900642 Note, the S3C2416 and the S3C2450 are so close that they even share
643 the same SoC ID code. This means that there is no seperate machine
644 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
645
Ben Dooksa08ab632008-10-21 14:06:39 +0100646config ARCH_S3C64XX
647 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000648 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900649 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900650 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100651 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900652 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000653 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100654 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900655 select ARCH_REQUIRE_GPIOLIB
656 select SAMSUNG_CLKSRC
657 select SAMSUNG_IRQ_VIC_TIMER
658 select SAMSUNG_IRQ_UART
659 select S3C_GPIO_TRACK
660 select S3C_GPIO_PULL_UPDOWN
661 select S3C_GPIO_CFG_S3C24XX
662 select S3C_GPIO_CFG_S3C64XX
663 select S3C_DEV_NAND
664 select USB_ARCH_HAS_OHCI
665 select SAMSUNG_GPIOLIB_4BIT
Ben Dooksa08ab632008-10-21 14:06:39 +0100666 help
667 Samsung S3C64XX series based systems
668
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900669config ARCH_S5P6440
670 bool "Samsung S5P6440"
671 select CPU_V6
672 select GENERIC_GPIO
673 select HAVE_CLK
674 help
675 Samsung S5P6440 CPU based systems
676
Kukjin Kim550db7f2010-01-29 10:19:26 +0900677config ARCH_S5P6442
678 bool "Samsung S5P6442"
679 select CPU_V6
680 select GENERIC_GPIO
681 select HAVE_CLK
682 help
683 Samsung S5P6442 CPU based systems
684
Byungho Min5a7652f2009-06-23 21:39:42 +0900685config ARCH_S5PC1XX
686 bool "Samsung S5PC1XX"
687 select GENERIC_GPIO
688 select HAVE_CLK
689 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100690 select ARM_L1_CACHE_SHIFT_6
Byungho Min5a7652f2009-06-23 21:39:42 +0900691 help
692 Samsung S5PC1XX series based systems
693
Kukjin Kim170f4e42010-02-24 16:40:44 +0900694config ARCH_S5PV210
695 bool "Samsung S5PV210/S5PC110"
696 select CPU_V7
697 select GENERIC_GPIO
698 select HAVE_CLK
699 select ARM_L1_CACHE_SHIFT_6
700 help
701 Samsung S5PV210/S5PC110 series based systems
702
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703config ARCH_SHARK
704 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000705 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100706 select ISA
707 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100708 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100709 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000710 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000711 help
712 Support for the StrongARM based Digital DNARD machine, also known
713 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714
715config ARCH_LH7A40X
716 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000717 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100718 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
719 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000720 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721 help
722 Say Y here for systems based on one of the Sharp LH7A40X
723 System on a Chip processors. These CPUs include an ARM922T
724 core with a wide array of integrated devices for
725 hand-held and low-power applications.
726
Linus Walleijd98aac72009-04-27 10:21:46 +0100727config ARCH_U300
728 bool "ST-Ericsson U300 Series"
729 depends on MMU
730 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100731 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100732 select ARM_AMBA
733 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100734 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100735 select COMMON_CLKDEV
736 select GENERIC_GPIO
737 help
738 Support for ST-Ericsson U300 series mobile platforms.
739
Russell Kingccf50e22010-03-15 19:03:06 +0000740config ARCH_U8500
741 bool "ST-Ericsson U8500 Series"
742 select CPU_V7
743 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000744 select GENERIC_CLOCKEVENTS
745 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100746 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000747 help
748 Support for ST-Ericsson's Ux500 architecture
749
750config ARCH_NOMADIK
751 bool "STMicroelectronics Nomadik"
752 select ARM_AMBA
753 select ARM_VIC
754 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000755 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000756 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000757 select ARCH_REQUIRE_GPIOLIB
758 help
759 Support for the Nomadik platform by ST-Ericsson
760
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100761config ARCH_DAVINCI
762 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100763 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700764 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100765 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700766 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700767 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700768 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530769 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100770 help
771 Support for TI's DaVinci platform.
772
Russell King3b938be2007-05-12 11:25:44 +0100773config ARCH_OMAP
774 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700775 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700776 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100777 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700778 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800779 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100780 help
781 Support for TI's OMAP platform (OMAP1 and OMAP2).
782
viresh kumarcee37e52010-04-01 12:31:05 +0100783config PLAT_SPEAR
784 bool "ST SPEAr"
785 select ARM_AMBA
786 select ARCH_REQUIRE_GPIOLIB
787 select COMMON_CLKDEV
788 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100789 select HAVE_CLK
790 help
791 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
792
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793endchoice
794
Russell Kingccf50e22010-03-15 19:03:06 +0000795#
796# This is sorted alphabetically by mach-* pathname. However, plat-*
797# Kconfigs may be included either alphabetically (according to the
798# plat- suffix) or along side the corresponding mach-* source.
799#
Russell King95b8f202010-01-14 11:43:54 +0000800source "arch/arm/mach-aaec2000/Kconfig"
801
802source "arch/arm/mach-at91/Kconfig"
803
804source "arch/arm/mach-bcmring/Kconfig"
805
Linus Torvalds1da177e2005-04-16 15:20:36 -0700806source "arch/arm/mach-clps711x/Kconfig"
807
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300808source "arch/arm/mach-cns3xxx/Kconfig"
809
Russell King95b8f202010-01-14 11:43:54 +0000810source "arch/arm/mach-davinci/Kconfig"
811
812source "arch/arm/mach-dove/Kconfig"
813
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000814source "arch/arm/mach-ep93xx/Kconfig"
815
Linus Torvalds1da177e2005-04-16 15:20:36 -0700816source "arch/arm/mach-footbridge/Kconfig"
817
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200818source "arch/arm/mach-gemini/Kconfig"
819
Russell King95b8f202010-01-14 11:43:54 +0000820source "arch/arm/mach-h720x/Kconfig"
821
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822source "arch/arm/mach-integrator/Kconfig"
823
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100824source "arch/arm/mach-iop32x/Kconfig"
825
826source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827
Dan Williams285f5fa2006-12-07 02:59:39 +0100828source "arch/arm/mach-iop13xx/Kconfig"
829
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830source "arch/arm/mach-ixp4xx/Kconfig"
831
832source "arch/arm/mach-ixp2000/Kconfig"
833
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100834source "arch/arm/mach-ixp23xx/Kconfig"
835
Russell King95b8f202010-01-14 11:43:54 +0000836source "arch/arm/mach-kirkwood/Kconfig"
837
838source "arch/arm/mach-ks8695/Kconfig"
839
840source "arch/arm/mach-lh7a40x/Kconfig"
841
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200842source "arch/arm/mach-loki/Kconfig"
843
Russell King95b8f202010-01-14 11:43:54 +0000844source "arch/arm/mach-msm/Kconfig"
845
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200846source "arch/arm/mach-mv78xx0/Kconfig"
847
Russell King95b8f202010-01-14 11:43:54 +0000848source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849
Russell King95b8f202010-01-14 11:43:54 +0000850source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800851
Russell King95b8f202010-01-14 11:43:54 +0000852source "arch/arm/mach-nomadik/Kconfig"
853source "arch/arm/plat-nomadik/Kconfig"
854
855source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856
Russell Kingd91a89102010-02-04 18:13:17 +0000857source "arch/arm/mach-nuc93x/Kconfig"
858
Tony Lindgrend48af152005-07-10 19:58:17 +0100859source "arch/arm/plat-omap/Kconfig"
860
861source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862
Tony Lindgren1dbae812005-11-10 14:26:51 +0000863source "arch/arm/mach-omap2/Kconfig"
864
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400865source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400866
Russell King95b8f202010-01-14 11:43:54 +0000867source "arch/arm/mach-pxa/Kconfig"
868source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869
Russell King95b8f202010-01-14 11:43:54 +0000870source "arch/arm/mach-mmp/Kconfig"
871
872source "arch/arm/mach-realview/Kconfig"
873
874source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300875
Ben Dookscf383672009-11-10 00:14:58 +0000876source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100877source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900878source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900879source "arch/arm/plat-s5pc1xx/Kconfig"
viresh kumarcee37e52010-04-01 12:31:05 +0100880source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100881
882if ARCH_S3C2410
883source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100885source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900886source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100887source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100888source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100889endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890
Ben Dooksa08ab632008-10-21 14:06:39 +0100891if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900892source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100893endif
894
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900895source "arch/arm/mach-s5p6440/Kconfig"
896
Kukjin Kim550db7f2010-01-29 10:19:26 +0900897source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100898
Byungho Min5a7652f2009-06-23 21:39:42 +0900899if ARCH_S5PC1XX
900source "arch/arm/mach-s5pc100/Kconfig"
901endif
902
Kukjin Kim170f4e42010-02-24 16:40:44 +0900903source "arch/arm/mach-s5pv210/Kconfig"
904
Russell King882d01f2010-03-02 23:40:15 +0000905source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700906
Russell King882d01f2010-03-02 23:40:15 +0000907source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800908
Russell King95b8f202010-01-14 11:43:54 +0000909source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100910
Russell King95b8f202010-01-14 11:43:54 +0000911source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912
913source "arch/arm/mach-versatile/Kconfig"
914
Russell Kingceade892010-02-11 21:44:53 +0000915source "arch/arm/mach-vexpress/Kconfig"
916
wanzongshun7ec80dd2008-12-03 03:55:38 +0100917source "arch/arm/mach-w90x900/Kconfig"
918
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919# Definitions to make life easier
920config ARCH_ACORN
921 bool
922
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100923config PLAT_IOP
924 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700925 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100926
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400927config PLAT_ORION
928 bool
929
Eric Miaobd5ce432009-01-20 12:06:01 +0800930config PLAT_PXA
931 bool
932
Russell Kingf4b8b312010-01-14 12:48:06 +0000933config PLAT_VERSATILE
934 bool
935
Russell Kinge3887712010-01-14 13:30:16 +0000936config ARM_TIMER_SP804
937 bool
938
Linus Torvalds1da177e2005-04-16 15:20:36 -0700939source arch/arm/mm/Kconfig
940
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100941config IWMMXT
942 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800943 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
944 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100945 help
946 Enable support for iWMMXt context switching at run time if
947 running on a CPU that supports it.
948
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
950config XSCALE_PMU
951 bool
952 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
953 default y
954
Jamie Iles0f4f0672010-02-02 20:23:15 +0100955config CPU_HAS_PMU
956 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
957 default y
958 bool
959
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100960if !MMU
961source "arch/arm/Kconfig-nommu"
962endif
963
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100964config ARM_ERRATA_411920
965 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
966 depends on CPU_V6 && !SMP
967 help
968 Invalidation of the Instruction Cache operation can
969 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
970 It does not affect the MPCore. This option enables the ARM Ltd.
971 recommended workaround.
972
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100973config ARM_ERRATA_430973
974 bool "ARM errata: Stale prediction on replaced interworking branch"
975 depends on CPU_V7
976 help
977 This option enables the workaround for the 430973 Cortex-A8
978 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
979 interworking branch is replaced with another code sequence at the
980 same virtual address, whether due to self-modifying code or virtual
981 to physical address re-mapping, Cortex-A8 does not recover from the
982 stale interworking branch prediction. This results in Cortex-A8
983 executing the new code sequence in the incorrect ARM or Thumb state.
984 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
985 and also flushes the branch target cache at every context switch.
986 Note that setting specific bits in the ACTLR register may not be
987 available in non-secure mode.
988
Catalin Marinas855c5512009-04-30 17:06:15 +0100989config ARM_ERRATA_458693
990 bool "ARM errata: Processor deadlock when a false hazard is created"
991 depends on CPU_V7
992 help
993 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
994 erratum. For very specific sequences of memory operations, it is
995 possible for a hazard condition intended for a cache line to instead
996 be incorrectly associated with a different cache line. This false
997 hazard might then cause a processor deadlock. The workaround enables
998 the L1 caching of the NEON accesses and disables the PLD instruction
999 in the ACTLR register. Note that setting specific bits in the ACTLR
1000 register may not be available in non-secure mode.
1001
Catalin Marinas0516e462009-04-30 17:06:20 +01001002config ARM_ERRATA_460075
1003 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1004 depends on CPU_V7
1005 help
1006 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1007 erratum. Any asynchronous access to the L2 cache may encounter a
1008 situation in which recent store transactions to the L2 cache are lost
1009 and overwritten with stale memory contents from external memory. The
1010 workaround disables the write-allocate mode for the L2 cache via the
1011 ACTLR register. Note that setting specific bits in the ACTLR register
1012 may not be available in non-secure mode.
1013
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001014config PL310_ERRATA_588369
1015 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1016 depends on CACHE_L2X0 && ARCH_OMAP4
1017 help
1018 The PL310 L2 cache controller implements three types of Clean &
1019 Invalidate maintenance operations: by Physical Address
1020 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1021 They are architecturally defined to behave as the execution of a
1022 clean operation followed immediately by an invalidate operation,
1023 both performing to the same memory location. This functionality
1024 is not correctly implemented in PL310 as clean lines are not
1025 invalidated as a result of these operations. Note that this errata
1026 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027endmenu
1028
1029source "arch/arm/common/Kconfig"
1030
1031config FORCE_MAX_ZONEORDER
1032 int
1033 depends on SA1111
1034 default "9"
1035
1036menu "Bus support"
1037
1038config ARM_AMBA
1039 bool
1040
1041config ISA
1042 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043 help
1044 Find out whether you have ISA slots on your motherboard. ISA is the
1045 name of a bus system, i.e. the way the CPU talks to the other stuff
1046 inside your box. Other bus systems are PCI, EISA, MicroChannel
1047 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1048 newer boards don't support it. If you have ISA, say Y, otherwise N.
1049
Russell King065909b2006-01-04 15:44:16 +00001050# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051config ISA_DMA
1052 bool
Russell King065909b2006-01-04 15:44:16 +00001053 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001054
Russell King065909b2006-01-04 15:44:16 +00001055# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001056config ISA_DMA_API
1057 bool
Al Viro5cae8412005-05-04 05:39:22 +01001058
Linus Torvalds1da177e2005-04-16 15:20:36 -07001059config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +01001060 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061 help
1062 Find out whether you have a PCI motherboard. PCI is the name of a
1063 bus system, i.e. the way the CPU talks to the other stuff inside
1064 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1065 VESA. If you have PCI, say Y, otherwise N.
1066
Anton Vorontsov52882172010-04-19 13:20:49 +01001067config PCI_DOMAINS
1068 bool
1069 depends on PCI
1070
Matthew Wilcox36e23592007-07-10 10:54:40 -06001071config PCI_SYSCALL
1072 def_bool PCI
1073
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074# Select the host bridge type
1075config PCI_HOST_VIA82C505
1076 bool
1077 depends on PCI && ARCH_SHARK
1078 default y
1079
Mike Rapoporta0113a92007-11-25 08:55:34 +01001080config PCI_HOST_ITE8152
1081 bool
1082 depends on PCI && MACH_ARMCORE
1083 default y
1084 select DMABOUNCE
1085
Linus Torvalds1da177e2005-04-16 15:20:36 -07001086source "drivers/pci/Kconfig"
1087
1088source "drivers/pcmcia/Kconfig"
1089
1090endmenu
1091
1092menu "Kernel Features"
1093
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001094source "kernel/time/Kconfig"
1095
Linus Torvalds1da177e2005-04-16 15:20:36 -07001096config SMP
1097 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001098 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Russell King59ac59f2010-02-11 21:56:07 +00001099 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
1100 ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Russell Kingbc282482009-05-17 18:58:34 +01001101 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001102 select USE_GENERIC_SMP_HELPERS
Russell King59ac59f2010-02-11 21:56:07 +00001103 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104 help
1105 This enables support for systems with more than one CPU. If you have
1106 a system with only one CPU, like most personal computers, say N. If
1107 you have a system with more than one CPU, say Y.
1108
1109 If you say N here, the kernel will run on single and multiprocessor
1110 machines, but will use only one CPU of a multiprocessor machine. If
1111 you say Y here, the kernel will run on many, but not all, single
1112 processor machines. On a single processor machine, the kernel will
1113 run faster if you say N here.
1114
Adrian Bunk03502fa2008-02-03 15:50:21 +02001115 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001116 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1117 <http://www.linuxdoc.org/docs.html#howto>.
1118
1119 If you don't know what to do here, say N.
1120
Russell Kinga8cbcd92009-05-16 11:51:14 +01001121config HAVE_ARM_SCU
1122 bool
1123 depends on SMP
1124 help
1125 This option enables support for the ARM system coherency unit
1126
Russell Kingf32f4ce2009-05-16 12:14:21 +01001127config HAVE_ARM_TWD
1128 bool
1129 depends on SMP
1130 help
1131 This options enables support for the ARM timer and watchdog unit
1132
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001133choice
1134 prompt "Memory split"
1135 default VMSPLIT_3G
1136 help
1137 Select the desired split between kernel and user memory.
1138
1139 If you are not absolutely sure what you are doing, leave this
1140 option alone!
1141
1142 config VMSPLIT_3G
1143 bool "3G/1G user/kernel split"
1144 config VMSPLIT_2G
1145 bool "2G/2G user/kernel split"
1146 config VMSPLIT_1G
1147 bool "1G/3G user/kernel split"
1148endchoice
1149
1150config PAGE_OFFSET
1151 hex
1152 default 0x40000000 if VMSPLIT_1G
1153 default 0x80000000 if VMSPLIT_2G
1154 default 0xC0000000
1155
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156config NR_CPUS
1157 int "Maximum number of CPUs (2-32)"
1158 range 2 32
1159 depends on SMP
1160 default "4"
1161
Russell Kinga054a812005-11-02 22:24:33 +00001162config HOTPLUG_CPU
1163 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1164 depends on SMP && HOTPLUG && EXPERIMENTAL
1165 help
1166 Say Y here to experiment with turning CPUs off and on. CPUs
1167 can be controlled through /sys/devices/system/cpu.
1168
Russell King37ee16a2005-11-08 19:08:05 +00001169config LOCAL_TIMERS
1170 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001171 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001172 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001173 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001174 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001175 help
1176 Enable support for local timers on SMP platforms, rather then the
1177 legacy IPI broadcast method. Local timers allows the system
1178 accounting to be spread across the timer interval, preventing a
1179 "thundering herd" at every timer tick.
1180
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001181source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182
Russell Kingf8065812006-03-02 22:41:59 +00001183config HZ
1184 int
1185 default 128 if ARCH_L7200
Kukjin Kim170f4e42010-02-24 16:40:44 +09001186 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001187 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001188 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001189 default 100
1190
Catalin Marinas16c79652009-07-24 12:33:02 +01001191config THUMB2_KERNEL
1192 bool "Compile the kernel in Thumb-2 mode"
1193 depends on CPU_V7 && EXPERIMENTAL
1194 select AEABI
1195 select ARM_ASM_UNIFIED
1196 help
1197 By enabling this option, the kernel will be compiled in
1198 Thumb-2 mode. A compiler/assembler that understand the unified
1199 ARM-Thumb syntax is needed.
1200
1201 If unsure, say N.
1202
Catalin Marinas0becb082009-07-24 12:32:53 +01001203config ARM_ASM_UNIFIED
1204 bool
1205
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001206config AEABI
1207 bool "Use the ARM EABI to compile the kernel"
1208 help
1209 This option allows for the kernel to be compiled using the latest
1210 ARM ABI (aka EABI). This is only useful if you are using a user
1211 space environment that is also compiled with EABI.
1212
1213 Since there are major incompatibilities between the legacy ABI and
1214 EABI, especially with regard to structure member alignment, this
1215 option also changes the kernel syscall calling convention to
1216 disambiguate both ABIs and allow for backward compatibility support
1217 (selected with CONFIG_OABI_COMPAT).
1218
1219 To use this you need GCC version 4.0.0 or later.
1220
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001221config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001222 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001223 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001224 default y
1225 help
1226 This option preserves the old syscall interface along with the
1227 new (ARM EABI) one. It also provides a compatibility layer to
1228 intercept syscalls that have structure arguments which layout
1229 in memory differs between the legacy ABI and the new ARM EABI
1230 (only for non "thumb" binaries). This option adds a tiny
1231 overhead to all syscalls and produces a slightly larger kernel.
1232 If you know you'll be using only pure EABI user space then you
1233 can say N here. If this option is not selected and you attempt
1234 to execute a legacy ABI binary then the result will be
1235 UNPREDICTABLE (in fact it can be predicted that it won't work
1236 at all). If in doubt say Y.
1237
Mel Gormaneb335752009-05-13 17:34:48 +01001238config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001239 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001240
Russell King07a2f732008-10-01 21:39:58 +01001241# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001242config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001244
Russell King05944d72006-11-30 20:43:51 +00001245config ARCH_SPARSEMEM_ENABLE
1246 bool
1247
Russell King07a2f732008-10-01 21:39:58 +01001248config ARCH_SPARSEMEM_DEFAULT
1249 def_bool ARCH_SPARSEMEM_ENABLE
1250
Russell King05944d72006-11-30 20:43:51 +00001251config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001252 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001253
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001254config NODES_SHIFT
1255 int
1256 default "4" if ARCH_LH7A40X
1257 default "2"
1258 depends on NEED_MULTIPLE_NODES
1259
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001260config HIGHMEM
1261 bool "High Memory Support (EXPERIMENTAL)"
1262 depends on MMU && EXPERIMENTAL
1263 help
1264 The address space of ARM processors is only 4 Gigabytes large
1265 and it has to accommodate user address space, kernel address
1266 space as well as some memory mapped IO. That means that, if you
1267 have a large amount of physical memory and/or IO, not all of the
1268 memory can be "permanently mapped" by the kernel. The physical
1269 memory that is not permanently mapped is called "high memory".
1270
1271 Depending on the selected kernel/user memory split, minimum
1272 vmalloc space and actual amount of RAM, you may not need this
1273 option which should result in a slightly faster kernel.
1274
1275 If unsure, say n.
1276
Russell King65cec8e2009-08-17 20:02:06 +01001277config HIGHPTE
1278 bool "Allocate 2nd-level pagetables from highmem"
1279 depends on HIGHMEM
1280 depends on !OUTER_CACHE
1281
Jamie Iles1b8873a2010-02-02 20:25:44 +01001282config HW_PERF_EVENTS
1283 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001284 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001285 default y
1286 help
1287 Enable hardware performance counter support for perf events. If
1288 disabled, perf events will use software events only.
1289
Dave Hansen3f22ab22005-06-23 00:07:43 -07001290source "mm/Kconfig"
1291
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292config LEDS
1293 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001294 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001295 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001296 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1297 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001298 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001299 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001300 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001301 help
1302 If you say Y here, the LEDs on your machine will be used
1303 to provide useful information about your current system status.
1304
1305 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1306 be able to select which LEDs are active using the options below. If
1307 you are compiling a kernel for the EBSA-110 or the LART however, the
1308 red LED will simply flash regularly to indicate that the system is
1309 still functional. It is safe to say Y here if you have a CATS
1310 system, but the driver will do nothing.
1311
1312config LEDS_TIMER
1313 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001314 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1315 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001317 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318 default y if ARCH_EBSA110
1319 help
1320 If you say Y here, one of the system LEDs (the green one on the
1321 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1322 will flash regularly to indicate that the system is still
1323 operational. This is mainly useful to kernel hackers who are
1324 debugging unstable kernels.
1325
1326 The LART uses the same LED for both Timer LED and CPU usage LED
1327 functions. You may choose to use both, but the Timer LED function
1328 will overrule the CPU usage LED.
1329
1330config LEDS_CPU
1331 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001332 !ARCH_OMAP) \
1333 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1334 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001335 depends on LEDS
1336 help
1337 If you say Y here, the red LED will be used to give a good real
1338 time indication of CPU usage, by lighting whenever the idle task
1339 is not currently executing.
1340
1341 The LART uses the same LED for both Timer LED and CPU usage LED
1342 functions. You may choose to use both, but the Timer LED function
1343 will overrule the CPU usage LED.
1344
1345config ALIGNMENT_TRAP
1346 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001347 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001348 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001349 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001350 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001351 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001352 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1353 address divisible by 4. On 32-bit ARM processors, these non-aligned
1354 fetch/store instructions will be emulated in software if you say
1355 here, which has a severe performance impact. This is necessary for
1356 correct operation of some network protocols. With an IP-only
1357 configuration it is safe to say N, otherwise say Y.
1358
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001359config UACCESS_WITH_MEMCPY
1360 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1361 depends on MMU && EXPERIMENTAL
1362 default y if CPU_FEROCEON
1363 help
1364 Implement faster copy_to_user and clear_user methods for CPU
1365 cores where a 8-word STM instruction give significantly higher
1366 memory write throughput than a sequence of individual 32bit stores.
1367
1368 A possible side effect is a slight increase in scheduling latency
1369 between threads sharing the same address space if they invoke
1370 such copy operations with large buffers.
1371
1372 However, if the CPU data cache is using a write-allocate mode,
1373 this option is unlikely to provide any performance gain.
1374
Linus Torvalds1da177e2005-04-16 15:20:36 -07001375endmenu
1376
1377menu "Boot options"
1378
1379# Compressed boot loader in ROM. Yes, we really want to ask about
1380# TEXT and BSS so we preserve their values in the config files.
1381config ZBOOT_ROM_TEXT
1382 hex "Compressed ROM boot loader base address"
1383 default "0"
1384 help
1385 The physical address at which the ROM-able zImage is to be
1386 placed in the target. Platforms which normally make use of
1387 ROM-able zImage formats normally set this to a suitable
1388 value in their defconfig file.
1389
1390 If ZBOOT_ROM is not enabled, this has no effect.
1391
1392config ZBOOT_ROM_BSS
1393 hex "Compressed ROM boot loader BSS address"
1394 default "0"
1395 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001396 The base address of an area of read/write memory in the target
1397 for the ROM-able zImage which must be available while the
1398 decompressor is running. It must be large enough to hold the
1399 entire decompressed kernel plus an additional 128 KiB.
1400 Platforms which normally make use of ROM-able zImage formats
1401 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402
1403 If ZBOOT_ROM is not enabled, this has no effect.
1404
1405config ZBOOT_ROM
1406 bool "Compressed boot loader in ROM/flash"
1407 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1408 help
1409 Say Y here if you intend to execute your compressed kernel image
1410 (zImage) directly from ROM or flash. If unsure, say N.
1411
1412config CMDLINE
1413 string "Default kernel command string"
1414 default ""
1415 help
1416 On some architectures (EBSA110 and CATS), there is currently no way
1417 for the boot loader to pass arguments to the kernel. For these
1418 architectures, you should supply some command-line options at build
1419 time by entering them here. As a minimum, you should specify the
1420 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1421
Alexander Holler92d20402010-02-16 19:04:53 +01001422config CMDLINE_FORCE
1423 bool "Always use the default kernel command string"
1424 depends on CMDLINE != ""
1425 help
1426 Always use the default kernel command string, even if the boot
1427 loader passes other arguments to the kernel.
1428 This is useful if you cannot or don't want to change the
1429 command-line options your boot loader passes to the kernel.
1430
1431 If unsure, say N.
1432
Linus Torvalds1da177e2005-04-16 15:20:36 -07001433config XIP_KERNEL
1434 bool "Kernel Execute-In-Place from ROM"
1435 depends on !ZBOOT_ROM
1436 help
1437 Execute-In-Place allows the kernel to run from non-volatile storage
1438 directly addressable by the CPU, such as NOR flash. This saves RAM
1439 space since the text section of the kernel is not loaded from flash
1440 to RAM. Read-write sections, such as the data section and stack,
1441 are still copied to RAM. The XIP kernel is not compressed since
1442 it has to run directly from flash, so it will take more space to
1443 store it. The flash address used to link the kernel object files,
1444 and for storing it, is configuration dependent. Therefore, if you
1445 say Y here, you must know the proper physical address where to
1446 store the kernel image depending on your own flash memory usage.
1447
1448 Also note that the make target becomes "make xipImage" rather than
1449 "make zImage" or "make Image". The final kernel binary to put in
1450 ROM memory will be arch/arm/boot/xipImage.
1451
1452 If unsure, say N.
1453
1454config XIP_PHYS_ADDR
1455 hex "XIP Kernel Physical Location"
1456 depends on XIP_KERNEL
1457 default "0x00080000"
1458 help
1459 This is the physical address in your flash memory the kernel will
1460 be linked for and stored to. This address is dependent on your
1461 own flash usage.
1462
Richard Purdiec587e4a2007-02-06 21:29:00 +01001463config KEXEC
1464 bool "Kexec system call (EXPERIMENTAL)"
1465 depends on EXPERIMENTAL
1466 help
1467 kexec is a system call that implements the ability to shutdown your
1468 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001469 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001470 you can start any kernel with it, not just Linux.
1471
1472 It is an ongoing process to be certain the hardware in a machine
1473 is properly shutdown, so do not be surprised if this code does not
1474 initially work for you. It may help to enable device hotplugging
1475 support.
1476
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001477config ATAGS_PROC
1478 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001479 depends on KEXEC
1480 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001481 help
1482 Should the atags used to boot the kernel be exported in an "atags"
1483 file in procfs. Useful with kexec.
1484
Linus Torvalds1da177e2005-04-16 15:20:36 -07001485endmenu
1486
Russell Kingac9d7ef2008-08-18 17:26:00 +01001487menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001488
Ben Dooks89c52ed2009-07-30 23:23:24 +01001489if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001490
1491source "drivers/cpufreq/Kconfig"
1492
1493config CPU_FREQ_SA1100
1494 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495
1496config CPU_FREQ_SA1110
1497 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498
1499config CPU_FREQ_INTEGRATOR
1500 tristate "CPUfreq driver for ARM Integrator CPUs"
1501 depends on ARCH_INTEGRATOR && CPU_FREQ
1502 default y
1503 help
1504 This enables the CPUfreq driver for ARM Integrator CPUs.
1505
1506 For details, take a look at <file:Documentation/cpu-freq>.
1507
1508 If in doubt, say Y.
1509
Russell King9e2697f2007-12-14 13:30:14 +00001510config CPU_FREQ_PXA
1511 bool
1512 depends on CPU_FREQ && ARCH_PXA && PXA25x
1513 default y
1514 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1515
Mark Brownb3748dd2009-06-15 11:23:20 +01001516config CPU_FREQ_S3C64XX
1517 bool "CPUfreq support for Samsung S3C64XX CPUs"
1518 depends on CPU_FREQ && CPU_S3C6410
1519
Ben Dooks9d56c022009-07-30 23:23:25 +01001520config CPU_FREQ_S3C
1521 bool
1522 help
1523 Internal configuration node for common cpufreq on Samsung SoC
1524
1525config CPU_FREQ_S3C24XX
1526 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1527 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1528 select CPU_FREQ_S3C
1529 help
1530 This enables the CPUfreq driver for the Samsung S3C24XX family
1531 of CPUs.
1532
1533 For details, take a look at <file:Documentation/cpu-freq>.
1534
1535 If in doubt, say N.
1536
1537config CPU_FREQ_S3C24XX_PLL
1538 bool "Support CPUfreq changing of PLL frequency"
1539 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1540 help
1541 Compile in support for changing the PLL frequency from the
1542 S3C24XX series CPUfreq driver. The PLL takes time to settle
1543 after a frequency change, so by default it is not enabled.
1544
1545 This also means that the PLL tables for the selected CPU(s) will
1546 be built which may increase the size of the kernel image.
1547
1548config CPU_FREQ_S3C24XX_DEBUG
1549 bool "Debug CPUfreq Samsung driver core"
1550 depends on CPU_FREQ_S3C24XX
1551 help
1552 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1553
1554config CPU_FREQ_S3C24XX_IODEBUG
1555 bool "Debug CPUfreq Samsung driver IO timing"
1556 depends on CPU_FREQ_S3C24XX
1557 help
1558 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1559
Ben Dookse6d197a2009-07-30 23:23:42 +01001560config CPU_FREQ_S3C24XX_DEBUGFS
1561 bool "Export debugfs for CPUFreq"
1562 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1563 help
1564 Export status information via debugfs.
1565
Linus Torvalds1da177e2005-04-16 15:20:36 -07001566endif
1567
Russell Kingac9d7ef2008-08-18 17:26:00 +01001568source "drivers/cpuidle/Kconfig"
1569
1570endmenu
1571
Linus Torvalds1da177e2005-04-16 15:20:36 -07001572menu "Floating point emulation"
1573
1574comment "At least one emulation must be selected"
1575
1576config FPE_NWFPE
1577 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001578 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001579 ---help---
1580 Say Y to include the NWFPE floating point emulator in the kernel.
1581 This is necessary to run most binaries. Linux does not currently
1582 support floating point hardware so you need to say Y here even if
1583 your machine has an FPA or floating point co-processor podule.
1584
1585 You may say N here if you are going to load the Acorn FPEmulator
1586 early in the bootup.
1587
1588config FPE_NWFPE_XP
1589 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001590 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001591 help
1592 Say Y to include 80-bit support in the kernel floating-point
1593 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1594 Note that gcc does not generate 80-bit operations by default,
1595 so in most cases this option only enlarges the size of the
1596 floating point emulator without any good reason.
1597
1598 You almost surely want to say N here.
1599
1600config FPE_FASTFPE
1601 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001602 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001603 ---help---
1604 Say Y here to include the FAST floating point emulator in the kernel.
1605 This is an experimental much faster emulator which now also has full
1606 precision for the mantissa. It does not support any exceptions.
1607 It is very simple, and approximately 3-6 times faster than NWFPE.
1608
1609 It should be sufficient for most programs. It may be not suitable
1610 for scientific calculations, but you have to check this for yourself.
1611 If you do not feel you need a faster FP emulation you should better
1612 choose NWFPE.
1613
1614config VFP
1615 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001616 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001617 help
1618 Say Y to include VFP support code in the kernel. This is needed
1619 if your hardware includes a VFP unit.
1620
1621 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1622 release notes and additional status information.
1623
1624 Say N if your target does not have VFP hardware.
1625
Catalin Marinas25ebee02007-09-25 15:22:24 +01001626config VFPv3
1627 bool
1628 depends on VFP
1629 default y if CPU_V7
1630
Catalin Marinasb5872db2008-01-10 19:16:17 +01001631config NEON
1632 bool "Advanced SIMD (NEON) Extension support"
1633 depends on VFPv3 && CPU_V7
1634 help
1635 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1636 Extension.
1637
Linus Torvalds1da177e2005-04-16 15:20:36 -07001638endmenu
1639
1640menu "Userspace binary formats"
1641
1642source "fs/Kconfig.binfmt"
1643
1644config ARTHUR
1645 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001646 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001647 help
1648 Say Y here to include the kernel code necessary if you want to run
1649 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1650 experimental; if this sounds frightening, say N and sleep in peace.
1651 You can also say M here to compile this support as a module (which
1652 will be called arthur).
1653
1654endmenu
1655
1656menu "Power management options"
1657
Russell Kingeceab4a2005-11-15 11:31:41 +00001658source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001659
Johannes Bergf4cb5702007-12-08 02:14:00 +01001660config ARCH_SUSPEND_POSSIBLE
1661 def_bool y
1662
Linus Torvalds1da177e2005-04-16 15:20:36 -07001663endmenu
1664
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001665source "net/Kconfig"
1666
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001667source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001668
1669source "fs/Kconfig"
1670
Linus Torvalds1da177e2005-04-16 15:20:36 -07001671source "arch/arm/Kconfig.debug"
1672
1673source "security/Kconfig"
1674
1675source "crypto/Kconfig"
1676
1677source "lib/Kconfig"