blob: 0b0cf0d2872f66b15aad4ebdff80b75e30750f1a [file] [log] [blame]
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
Ben Dooks925c68c2010-05-20 20:48:28 +0900674 select ARCH_USES_GETTIMEOFFSET
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900675 help
676 Samsung S5P6440 CPU based systems
677
Kukjin Kim550db7f2010-01-29 10:19:26 +0900678config ARCH_S5P6442
679 bool "Samsung S5P6442"
680 select CPU_V6
681 select GENERIC_GPIO
682 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900683 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim550db7f2010-01-29 10:19:26 +0900684 help
685 Samsung S5P6442 CPU based systems
686
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200687config ARCH_S5PC100
688 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900689 select GENERIC_GPIO
690 select HAVE_CLK
691 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100692 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900693 select ARCH_USES_GETTIMEOFFSET
Byungho Min5a7652f2009-06-23 21:39:42 +0900694 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200695 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900696
Kukjin Kim170f4e42010-02-24 16:40:44 +0900697config ARCH_S5PV210
698 bool "Samsung S5PV210/S5PC110"
699 select CPU_V7
700 select GENERIC_GPIO
701 select HAVE_CLK
702 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900703 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim170f4e42010-02-24 16:40:44 +0900704 help
705 Samsung S5PV210/S5PC110 series based systems
706
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707config ARCH_SHARK
708 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000709 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100710 select ISA
711 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100712 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100713 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000714 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000715 help
716 Support for the StrongARM based Digital DNARD machine, also known
717 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700718
719config ARCH_LH7A40X
720 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000721 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100722 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
723 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000724 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725 help
726 Say Y here for systems based on one of the Sharp LH7A40X
727 System on a Chip processors. These CPUs include an ARM922T
728 core with a wide array of integrated devices for
729 hand-held and low-power applications.
730
Linus Walleijd98aac72009-04-27 10:21:46 +0100731config ARCH_U300
732 bool "ST-Ericsson U300 Series"
733 depends on MMU
734 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100735 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100736 select ARM_AMBA
737 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100738 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100739 select COMMON_CLKDEV
740 select GENERIC_GPIO
741 help
742 Support for ST-Ericsson U300 series mobile platforms.
743
Russell Kingccf50e22010-03-15 19:03:06 +0000744config ARCH_U8500
745 bool "ST-Ericsson U8500 Series"
746 select CPU_V7
747 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000748 select GENERIC_CLOCKEVENTS
749 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100750 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000751 help
752 Support for ST-Ericsson's Ux500 architecture
753
754config ARCH_NOMADIK
755 bool "STMicroelectronics Nomadik"
756 select ARM_AMBA
757 select ARM_VIC
758 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000759 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000760 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000761 select ARCH_REQUIRE_GPIOLIB
762 help
763 Support for the Nomadik platform by ST-Ericsson
764
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100765config ARCH_DAVINCI
766 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100767 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700768 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100769 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700770 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700771 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700772 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530773 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100774 help
775 Support for TI's DaVinci platform.
776
Russell King3b938be2007-05-12 11:25:44 +0100777config ARCH_OMAP
778 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700779 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700780 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100781 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700782 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800783 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100784 help
785 Support for TI's OMAP platform (OMAP1 and OMAP2).
786
viresh kumarcee37e52010-04-01 12:31:05 +0100787config PLAT_SPEAR
788 bool "ST SPEAr"
789 select ARM_AMBA
790 select ARCH_REQUIRE_GPIOLIB
791 select COMMON_CLKDEV
792 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100793 select HAVE_CLK
794 help
795 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
796
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797endchoice
798
Russell Kingccf50e22010-03-15 19:03:06 +0000799#
800# This is sorted alphabetically by mach-* pathname. However, plat-*
801# Kconfigs may be included either alphabetically (according to the
802# plat- suffix) or along side the corresponding mach-* source.
803#
Russell King95b8f202010-01-14 11:43:54 +0000804source "arch/arm/mach-aaec2000/Kconfig"
805
806source "arch/arm/mach-at91/Kconfig"
807
808source "arch/arm/mach-bcmring/Kconfig"
809
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810source "arch/arm/mach-clps711x/Kconfig"
811
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300812source "arch/arm/mach-cns3xxx/Kconfig"
813
Russell King95b8f202010-01-14 11:43:54 +0000814source "arch/arm/mach-davinci/Kconfig"
815
816source "arch/arm/mach-dove/Kconfig"
817
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000818source "arch/arm/mach-ep93xx/Kconfig"
819
Linus Torvalds1da177e2005-04-16 15:20:36 -0700820source "arch/arm/mach-footbridge/Kconfig"
821
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200822source "arch/arm/mach-gemini/Kconfig"
823
Russell King95b8f202010-01-14 11:43:54 +0000824source "arch/arm/mach-h720x/Kconfig"
825
Linus Torvalds1da177e2005-04-16 15:20:36 -0700826source "arch/arm/mach-integrator/Kconfig"
827
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100828source "arch/arm/mach-iop32x/Kconfig"
829
830source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700831
Dan Williams285f5fa2006-12-07 02:59:39 +0100832source "arch/arm/mach-iop13xx/Kconfig"
833
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834source "arch/arm/mach-ixp4xx/Kconfig"
835
836source "arch/arm/mach-ixp2000/Kconfig"
837
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100838source "arch/arm/mach-ixp23xx/Kconfig"
839
Russell King95b8f202010-01-14 11:43:54 +0000840source "arch/arm/mach-kirkwood/Kconfig"
841
842source "arch/arm/mach-ks8695/Kconfig"
843
844source "arch/arm/mach-lh7a40x/Kconfig"
845
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200846source "arch/arm/mach-loki/Kconfig"
847
Russell King95b8f202010-01-14 11:43:54 +0000848source "arch/arm/mach-msm/Kconfig"
849
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200850source "arch/arm/mach-mv78xx0/Kconfig"
851
Russell King95b8f202010-01-14 11:43:54 +0000852source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853
Russell King95b8f202010-01-14 11:43:54 +0000854source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800855
Russell King95b8f202010-01-14 11:43:54 +0000856source "arch/arm/mach-nomadik/Kconfig"
857source "arch/arm/plat-nomadik/Kconfig"
858
859source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860
Russell Kingd91a89102010-02-04 18:13:17 +0000861source "arch/arm/mach-nuc93x/Kconfig"
862
Tony Lindgrend48af152005-07-10 19:58:17 +0100863source "arch/arm/plat-omap/Kconfig"
864
865source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866
Tony Lindgren1dbae812005-11-10 14:26:51 +0000867source "arch/arm/mach-omap2/Kconfig"
868
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400869source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400870
Russell King95b8f202010-01-14 11:43:54 +0000871source "arch/arm/mach-pxa/Kconfig"
872source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873
Russell King95b8f202010-01-14 11:43:54 +0000874source "arch/arm/mach-mmp/Kconfig"
875
876source "arch/arm/mach-realview/Kconfig"
877
878source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300879
Ben Dookscf383672009-11-10 00:14:58 +0000880source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100881source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900882source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100883
viresh kumarcee37e52010-04-01 12:31:05 +0100884source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100885
886if ARCH_S3C2410
887source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100889source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900890source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100891source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100892source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100893endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894
Ben Dooksa08ab632008-10-21 14:06:39 +0100895if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900896source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100897endif
898
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900899source "arch/arm/mach-s5p6440/Kconfig"
900
Kukjin Kim550db7f2010-01-29 10:19:26 +0900901source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100902
Byungho Min5a7652f2009-06-23 21:39:42 +0900903source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900904
Kukjin Kim170f4e42010-02-24 16:40:44 +0900905source "arch/arm/mach-s5pv210/Kconfig"
906
Russell King882d01f2010-03-02 23:40:15 +0000907source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908
Russell King882d01f2010-03-02 23:40:15 +0000909source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800910
Russell King95b8f202010-01-14 11:43:54 +0000911source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100912
Russell King95b8f202010-01-14 11:43:54 +0000913source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914
915source "arch/arm/mach-versatile/Kconfig"
916
Russell Kingceade892010-02-11 21:44:53 +0000917source "arch/arm/mach-vexpress/Kconfig"
918
wanzongshun7ec80dd2008-12-03 03:55:38 +0100919source "arch/arm/mach-w90x900/Kconfig"
920
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921# Definitions to make life easier
922config ARCH_ACORN
923 bool
924
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100925config PLAT_IOP
926 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700927 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100928
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400929config PLAT_ORION
930 bool
931
Eric Miaobd5ce432009-01-20 12:06:01 +0800932config PLAT_PXA
933 bool
934
Russell Kingf4b8b312010-01-14 12:48:06 +0000935config PLAT_VERSATILE
936 bool
937
Russell Kinge3887712010-01-14 13:30:16 +0000938config ARM_TIMER_SP804
939 bool
940
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941source arch/arm/mm/Kconfig
942
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100943config IWMMXT
944 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800945 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
946 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100947 help
948 Enable support for iWMMXt context switching at run time if
949 running on a CPU that supports it.
950
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
952config XSCALE_PMU
953 bool
954 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
955 default y
956
Jamie Iles0f4f0672010-02-02 20:23:15 +0100957config CPU_HAS_PMU
958 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
959 default y
960 bool
961
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100962if !MMU
963source "arch/arm/Kconfig-nommu"
964endif
965
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100966config ARM_ERRATA_411920
967 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
968 depends on CPU_V6 && !SMP
969 help
970 Invalidation of the Instruction Cache operation can
971 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
972 It does not affect the MPCore. This option enables the ARM Ltd.
973 recommended workaround.
974
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100975config ARM_ERRATA_430973
976 bool "ARM errata: Stale prediction on replaced interworking branch"
977 depends on CPU_V7
978 help
979 This option enables the workaround for the 430973 Cortex-A8
980 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
981 interworking branch is replaced with another code sequence at the
982 same virtual address, whether due to self-modifying code or virtual
983 to physical address re-mapping, Cortex-A8 does not recover from the
984 stale interworking branch prediction. This results in Cortex-A8
985 executing the new code sequence in the incorrect ARM or Thumb state.
986 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
987 and also flushes the branch target cache at every context switch.
988 Note that setting specific bits in the ACTLR register may not be
989 available in non-secure mode.
990
Catalin Marinas855c5512009-04-30 17:06:15 +0100991config ARM_ERRATA_458693
992 bool "ARM errata: Processor deadlock when a false hazard is created"
993 depends on CPU_V7
994 help
995 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
996 erratum. For very specific sequences of memory operations, it is
997 possible for a hazard condition intended for a cache line to instead
998 be incorrectly associated with a different cache line. This false
999 hazard might then cause a processor deadlock. The workaround enables
1000 the L1 caching of the NEON accesses and disables the PLD instruction
1001 in the ACTLR register. Note that setting specific bits in the ACTLR
1002 register may not be available in non-secure mode.
1003
Catalin Marinas0516e462009-04-30 17:06:20 +01001004config ARM_ERRATA_460075
1005 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1006 depends on CPU_V7
1007 help
1008 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1009 erratum. Any asynchronous access to the L2 cache may encounter a
1010 situation in which recent store transactions to the L2 cache are lost
1011 and overwritten with stale memory contents from external memory. The
1012 workaround disables the write-allocate mode for the L2 cache via the
1013 ACTLR register. Note that setting specific bits in the ACTLR register
1014 may not be available in non-secure mode.
1015
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001016config PL310_ERRATA_588369
1017 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1018 depends on CACHE_L2X0 && ARCH_OMAP4
1019 help
1020 The PL310 L2 cache controller implements three types of Clean &
1021 Invalidate maintenance operations: by Physical Address
1022 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1023 They are architecturally defined to behave as the execution of a
1024 clean operation followed immediately by an invalidate operation,
1025 both performing to the same memory location. This functionality
1026 is not correctly implemented in PL310 as clean lines are not
1027 invalidated as a result of these operations. Note that this errata
1028 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029endmenu
1030
1031source "arch/arm/common/Kconfig"
1032
1033config FORCE_MAX_ZONEORDER
1034 int
1035 depends on SA1111
1036 default "9"
1037
1038menu "Bus support"
1039
1040config ARM_AMBA
1041 bool
1042
1043config ISA
1044 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045 help
1046 Find out whether you have ISA slots on your motherboard. ISA is the
1047 name of a bus system, i.e. the way the CPU talks to the other stuff
1048 inside your box. Other bus systems are PCI, EISA, MicroChannel
1049 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1050 newer boards don't support it. If you have ISA, say Y, otherwise N.
1051
Russell King065909b2006-01-04 15:44:16 +00001052# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053config ISA_DMA
1054 bool
Russell King065909b2006-01-04 15:44:16 +00001055 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056
Russell King065909b2006-01-04 15:44:16 +00001057# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001058config ISA_DMA_API
1059 bool
Al Viro5cae8412005-05-04 05:39:22 +01001060
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +01001062 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063 help
1064 Find out whether you have a PCI motherboard. PCI is the name of a
1065 bus system, i.e. the way the CPU talks to the other stuff inside
1066 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1067 VESA. If you have PCI, say Y, otherwise N.
1068
Anton Vorontsov52882172010-04-19 13:20:49 +01001069config PCI_DOMAINS
1070 bool
1071 depends on PCI
1072
Matthew Wilcox36e23592007-07-10 10:54:40 -06001073config PCI_SYSCALL
1074 def_bool PCI
1075
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076# Select the host bridge type
1077config PCI_HOST_VIA82C505
1078 bool
1079 depends on PCI && ARCH_SHARK
1080 default y
1081
Mike Rapoporta0113a92007-11-25 08:55:34 +01001082config PCI_HOST_ITE8152
1083 bool
1084 depends on PCI && MACH_ARMCORE
1085 default y
1086 select DMABOUNCE
1087
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088source "drivers/pci/Kconfig"
1089
1090source "drivers/pcmcia/Kconfig"
1091
1092endmenu
1093
1094menu "Kernel Features"
1095
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001096source "kernel/time/Kconfig"
1097
Linus Torvalds1da177e2005-04-16 15:20:36 -07001098config SMP
1099 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001100 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Russell King59ac59f2010-02-11 21:56:07 +00001101 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
1102 ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Russell Kingbc282482009-05-17 18:58:34 +01001103 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001104 select USE_GENERIC_SMP_HELPERS
Russell King59ac59f2010-02-11 21:56:07 +00001105 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106 help
1107 This enables support for systems with more than one CPU. If you have
1108 a system with only one CPU, like most personal computers, say N. If
1109 you have a system with more than one CPU, say Y.
1110
1111 If you say N here, the kernel will run on single and multiprocessor
1112 machines, but will use only one CPU of a multiprocessor machine. If
1113 you say Y here, the kernel will run on many, but not all, single
1114 processor machines. On a single processor machine, the kernel will
1115 run faster if you say N here.
1116
Adrian Bunk03502fa2008-02-03 15:50:21 +02001117 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1119 <http://www.linuxdoc.org/docs.html#howto>.
1120
1121 If you don't know what to do here, say N.
1122
Russell Kinga8cbcd92009-05-16 11:51:14 +01001123config HAVE_ARM_SCU
1124 bool
1125 depends on SMP
1126 help
1127 This option enables support for the ARM system coherency unit
1128
Russell Kingf32f4ce2009-05-16 12:14:21 +01001129config HAVE_ARM_TWD
1130 bool
1131 depends on SMP
1132 help
1133 This options enables support for the ARM timer and watchdog unit
1134
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001135choice
1136 prompt "Memory split"
1137 default VMSPLIT_3G
1138 help
1139 Select the desired split between kernel and user memory.
1140
1141 If you are not absolutely sure what you are doing, leave this
1142 option alone!
1143
1144 config VMSPLIT_3G
1145 bool "3G/1G user/kernel split"
1146 config VMSPLIT_2G
1147 bool "2G/2G user/kernel split"
1148 config VMSPLIT_1G
1149 bool "1G/3G user/kernel split"
1150endchoice
1151
1152config PAGE_OFFSET
1153 hex
1154 default 0x40000000 if VMSPLIT_1G
1155 default 0x80000000 if VMSPLIT_2G
1156 default 0xC0000000
1157
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158config NR_CPUS
1159 int "Maximum number of CPUs (2-32)"
1160 range 2 32
1161 depends on SMP
1162 default "4"
1163
Russell Kinga054a812005-11-02 22:24:33 +00001164config HOTPLUG_CPU
1165 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1166 depends on SMP && HOTPLUG && EXPERIMENTAL
1167 help
1168 Say Y here to experiment with turning CPUs off and on. CPUs
1169 can be controlled through /sys/devices/system/cpu.
1170
Russell King37ee16a2005-11-08 19:08:05 +00001171config LOCAL_TIMERS
1172 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001173 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001174 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001175 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001176 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001177 help
1178 Enable support for local timers on SMP platforms, rather then the
1179 legacy IPI broadcast method. Local timers allows the system
1180 accounting to be spread across the timer interval, preventing a
1181 "thundering herd" at every timer tick.
1182
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001183source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184
Russell Kingf8065812006-03-02 22:41:59 +00001185config HZ
1186 int
1187 default 128 if ARCH_L7200
Kukjin Kim170f4e42010-02-24 16:40:44 +09001188 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001189 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001190 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001191 default 100
1192
Catalin Marinas16c79652009-07-24 12:33:02 +01001193config THUMB2_KERNEL
1194 bool "Compile the kernel in Thumb-2 mode"
1195 depends on CPU_V7 && EXPERIMENTAL
1196 select AEABI
1197 select ARM_ASM_UNIFIED
1198 help
1199 By enabling this option, the kernel will be compiled in
1200 Thumb-2 mode. A compiler/assembler that understand the unified
1201 ARM-Thumb syntax is needed.
1202
1203 If unsure, say N.
1204
Catalin Marinas0becb082009-07-24 12:32:53 +01001205config ARM_ASM_UNIFIED
1206 bool
1207
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001208config AEABI
1209 bool "Use the ARM EABI to compile the kernel"
1210 help
1211 This option allows for the kernel to be compiled using the latest
1212 ARM ABI (aka EABI). This is only useful if you are using a user
1213 space environment that is also compiled with EABI.
1214
1215 Since there are major incompatibilities between the legacy ABI and
1216 EABI, especially with regard to structure member alignment, this
1217 option also changes the kernel syscall calling convention to
1218 disambiguate both ABIs and allow for backward compatibility support
1219 (selected with CONFIG_OABI_COMPAT).
1220
1221 To use this you need GCC version 4.0.0 or later.
1222
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001223config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001224 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001225 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001226 default y
1227 help
1228 This option preserves the old syscall interface along with the
1229 new (ARM EABI) one. It also provides a compatibility layer to
1230 intercept syscalls that have structure arguments which layout
1231 in memory differs between the legacy ABI and the new ARM EABI
1232 (only for non "thumb" binaries). This option adds a tiny
1233 overhead to all syscalls and produces a slightly larger kernel.
1234 If you know you'll be using only pure EABI user space then you
1235 can say N here. If this option is not selected and you attempt
1236 to execute a legacy ABI binary then the result will be
1237 UNPREDICTABLE (in fact it can be predicted that it won't work
1238 at all). If in doubt say Y.
1239
Mel Gormaneb335752009-05-13 17:34:48 +01001240config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001241 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001242
Russell King07a2f732008-10-01 21:39:58 +01001243# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001244config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001246
Russell King05944d72006-11-30 20:43:51 +00001247config ARCH_SPARSEMEM_ENABLE
1248 bool
1249
Russell King07a2f732008-10-01 21:39:58 +01001250config ARCH_SPARSEMEM_DEFAULT
1251 def_bool ARCH_SPARSEMEM_ENABLE
1252
Russell King05944d72006-11-30 20:43:51 +00001253config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001254 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001255
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001256config NODES_SHIFT
1257 int
1258 default "4" if ARCH_LH7A40X
1259 default "2"
1260 depends on NEED_MULTIPLE_NODES
1261
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001262config HIGHMEM
1263 bool "High Memory Support (EXPERIMENTAL)"
1264 depends on MMU && EXPERIMENTAL
1265 help
1266 The address space of ARM processors is only 4 Gigabytes large
1267 and it has to accommodate user address space, kernel address
1268 space as well as some memory mapped IO. That means that, if you
1269 have a large amount of physical memory and/or IO, not all of the
1270 memory can be "permanently mapped" by the kernel. The physical
1271 memory that is not permanently mapped is called "high memory".
1272
1273 Depending on the selected kernel/user memory split, minimum
1274 vmalloc space and actual amount of RAM, you may not need this
1275 option which should result in a slightly faster kernel.
1276
1277 If unsure, say n.
1278
Russell King65cec8e2009-08-17 20:02:06 +01001279config HIGHPTE
1280 bool "Allocate 2nd-level pagetables from highmem"
1281 depends on HIGHMEM
1282 depends on !OUTER_CACHE
1283
Jamie Iles1b8873a2010-02-02 20:25:44 +01001284config HW_PERF_EVENTS
1285 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001286 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001287 default y
1288 help
1289 Enable hardware performance counter support for perf events. If
1290 disabled, perf events will use software events only.
1291
Dave Hansen3f22ab22005-06-23 00:07:43 -07001292source "mm/Kconfig"
1293
Linus Torvalds1da177e2005-04-16 15:20:36 -07001294config LEDS
1295 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001296 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001297 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001298 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1299 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001300 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001301 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001302 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303 help
1304 If you say Y here, the LEDs on your machine will be used
1305 to provide useful information about your current system status.
1306
1307 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1308 be able to select which LEDs are active using the options below. If
1309 you are compiling a kernel for the EBSA-110 or the LART however, the
1310 red LED will simply flash regularly to indicate that the system is
1311 still functional. It is safe to say Y here if you have a CATS
1312 system, but the driver will do nothing.
1313
1314config LEDS_TIMER
1315 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001316 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1317 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001319 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001320 default y if ARCH_EBSA110
1321 help
1322 If you say Y here, one of the system LEDs (the green one on the
1323 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1324 will flash regularly to indicate that the system is still
1325 operational. This is mainly useful to kernel hackers who are
1326 debugging unstable kernels.
1327
1328 The LART uses the same LED for both Timer LED and CPU usage LED
1329 functions. You may choose to use both, but the Timer LED function
1330 will overrule the CPU usage LED.
1331
1332config LEDS_CPU
1333 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001334 !ARCH_OMAP) \
1335 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1336 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001337 depends on LEDS
1338 help
1339 If you say Y here, the red LED will be used to give a good real
1340 time indication of CPU usage, by lighting whenever the idle task
1341 is not currently executing.
1342
1343 The LART uses the same LED for both Timer LED and CPU usage LED
1344 functions. You may choose to use both, but the Timer LED function
1345 will overrule the CPU usage LED.
1346
1347config ALIGNMENT_TRAP
1348 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001349 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001350 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001351 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001352 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001353 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1355 address divisible by 4. On 32-bit ARM processors, these non-aligned
1356 fetch/store instructions will be emulated in software if you say
1357 here, which has a severe performance impact. This is necessary for
1358 correct operation of some network protocols. With an IP-only
1359 configuration it is safe to say N, otherwise say Y.
1360
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001361config UACCESS_WITH_MEMCPY
1362 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1363 depends on MMU && EXPERIMENTAL
1364 default y if CPU_FEROCEON
1365 help
1366 Implement faster copy_to_user and clear_user methods for CPU
1367 cores where a 8-word STM instruction give significantly higher
1368 memory write throughput than a sequence of individual 32bit stores.
1369
1370 A possible side effect is a slight increase in scheduling latency
1371 between threads sharing the same address space if they invoke
1372 such copy operations with large buffers.
1373
1374 However, if the CPU data cache is using a write-allocate mode,
1375 this option is unlikely to provide any performance gain.
1376
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001377config DEPRECATED_PARAM_STRUCT
1378 bool "Provide old way to pass kernel parameters"
1379 help
1380 This was deprecated in 2001 and announced to live on for 5 years.
1381 Some old boot loaders still use this way.
1382
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383endmenu
1384
1385menu "Boot options"
1386
1387# Compressed boot loader in ROM. Yes, we really want to ask about
1388# TEXT and BSS so we preserve their values in the config files.
1389config ZBOOT_ROM_TEXT
1390 hex "Compressed ROM boot loader base address"
1391 default "0"
1392 help
1393 The physical address at which the ROM-able zImage is to be
1394 placed in the target. Platforms which normally make use of
1395 ROM-able zImage formats normally set this to a suitable
1396 value in their defconfig file.
1397
1398 If ZBOOT_ROM is not enabled, this has no effect.
1399
1400config ZBOOT_ROM_BSS
1401 hex "Compressed ROM boot loader BSS address"
1402 default "0"
1403 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001404 The base address of an area of read/write memory in the target
1405 for the ROM-able zImage which must be available while the
1406 decompressor is running. It must be large enough to hold the
1407 entire decompressed kernel plus an additional 128 KiB.
1408 Platforms which normally make use of ROM-able zImage formats
1409 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410
1411 If ZBOOT_ROM is not enabled, this has no effect.
1412
1413config ZBOOT_ROM
1414 bool "Compressed boot loader in ROM/flash"
1415 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1416 help
1417 Say Y here if you intend to execute your compressed kernel image
1418 (zImage) directly from ROM or flash. If unsure, say N.
1419
1420config CMDLINE
1421 string "Default kernel command string"
1422 default ""
1423 help
1424 On some architectures (EBSA110 and CATS), there is currently no way
1425 for the boot loader to pass arguments to the kernel. For these
1426 architectures, you should supply some command-line options at build
1427 time by entering them here. As a minimum, you should specify the
1428 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1429
Alexander Holler92d20402010-02-16 19:04:53 +01001430config CMDLINE_FORCE
1431 bool "Always use the default kernel command string"
1432 depends on CMDLINE != ""
1433 help
1434 Always use the default kernel command string, even if the boot
1435 loader passes other arguments to the kernel.
1436 This is useful if you cannot or don't want to change the
1437 command-line options your boot loader passes to the kernel.
1438
1439 If unsure, say N.
1440
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441config XIP_KERNEL
1442 bool "Kernel Execute-In-Place from ROM"
1443 depends on !ZBOOT_ROM
1444 help
1445 Execute-In-Place allows the kernel to run from non-volatile storage
1446 directly addressable by the CPU, such as NOR flash. This saves RAM
1447 space since the text section of the kernel is not loaded from flash
1448 to RAM. Read-write sections, such as the data section and stack,
1449 are still copied to RAM. The XIP kernel is not compressed since
1450 it has to run directly from flash, so it will take more space to
1451 store it. The flash address used to link the kernel object files,
1452 and for storing it, is configuration dependent. Therefore, if you
1453 say Y here, you must know the proper physical address where to
1454 store the kernel image depending on your own flash memory usage.
1455
1456 Also note that the make target becomes "make xipImage" rather than
1457 "make zImage" or "make Image". The final kernel binary to put in
1458 ROM memory will be arch/arm/boot/xipImage.
1459
1460 If unsure, say N.
1461
1462config XIP_PHYS_ADDR
1463 hex "XIP Kernel Physical Location"
1464 depends on XIP_KERNEL
1465 default "0x00080000"
1466 help
1467 This is the physical address in your flash memory the kernel will
1468 be linked for and stored to. This address is dependent on your
1469 own flash usage.
1470
Richard Purdiec587e4a2007-02-06 21:29:00 +01001471config KEXEC
1472 bool "Kexec system call (EXPERIMENTAL)"
1473 depends on EXPERIMENTAL
1474 help
1475 kexec is a system call that implements the ability to shutdown your
1476 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001477 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001478 you can start any kernel with it, not just Linux.
1479
1480 It is an ongoing process to be certain the hardware in a machine
1481 is properly shutdown, so do not be surprised if this code does not
1482 initially work for you. It may help to enable device hotplugging
1483 support.
1484
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001485config ATAGS_PROC
1486 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001487 depends on KEXEC
1488 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001489 help
1490 Should the atags used to boot the kernel be exported in an "atags"
1491 file in procfs. Useful with kexec.
1492
Eric Miaoe69edc792010-07-05 15:56:50 +02001493config AUTO_ZRELADDR
1494 bool "Auto calculation of the decompressed kernel image address"
1495 depends on !ZBOOT_ROM && !ARCH_U300
1496 help
1497 ZRELADDR is the physical address where the decompressed kernel
1498 image will be placed. If AUTO_ZRELADDR is selected, the address
1499 will be determined at run-time by masking the current IP with
1500 0xf8000000. This assumes the zImage being placed in the first 128MB
1501 from start of memory.
1502
1503config ZRELADDR
1504 hex "Physical address of the decompressed kernel image"
1505 depends on !AUTO_ZRELADDR
1506 default 0x00008000 if ARCH_BCMRING ||\
1507 ARCH_CNS3XXX ||\
1508 ARCH_DOVE ||\
1509 ARCH_EBSA110 ||\
1510 ARCH_FOOTBRIDGE ||\
1511 ARCH_INTEGRATOR ||\
1512 ARCH_IOP13XX ||\
1513 ARCH_IOP33X ||\
1514 ARCH_IXP2000 ||\
1515 ARCH_IXP23XX ||\
1516 ARCH_IXP4XX ||\
1517 ARCH_KIRKWOOD ||\
1518 ARCH_KS8695 ||\
1519 ARCH_LOKI ||\
1520 ARCH_MMP ||\
1521 ARCH_MV78XX0 ||\
1522 ARCH_NOMADIK ||\
1523 ARCH_NUC93X ||\
1524 ARCH_NS9XXX ||\
1525 ARCH_ORION5X ||\
1526 ARCH_SPEAR3XX ||\
1527 ARCH_SPEAR6XX ||\
1528 ARCH_U8500 ||\
1529 ARCH_VERSATILE ||\
1530 ARCH_W90X900
1531 default 0x08008000 if ARCH_MX1 ||\
1532 ARCH_SHARK
1533 default 0x10008000 if ARCH_MSM ||\
1534 ARCH_OMAP1 ||\
1535 ARCH_RPC
1536 default 0x20008000 if ARCH_S5P6440 ||\
1537 ARCH_S5P6442 ||\
1538 ARCH_S5PC100 ||\
1539 ARCH_S5PV210
1540 default 0x30008000 if ARCH_S3C2410 ||\
1541 ARCH_S3C2400 ||\
1542 ARCH_S3C2412 ||\
1543 ARCH_S3C2416 ||\
1544 ARCH_S3C2440 ||\
1545 ARCH_S3C2443
1546 default 0x40008000 if ARCH_STMP378X ||\
1547 ARCH_STMP37XX ||\
1548 ARCH_SH7372 ||\
1549 ARCH_SH7377
1550 default 0x50008000 if ARCH_S3C64XX ||\
1551 ARCH_SH7367
1552 default 0x60008000 if ARCH_VEXPRESS
1553 default 0x80008000 if ARCH_MX25 ||\
1554 ARCH_MX3 ||\
1555 ARCH_NETX ||\
1556 ARCH_OMAP2PLUS ||\
1557 ARCH_PNX4008
1558 default 0x90008000 if ARCH_MX5 ||\
1559 ARCH_MX91231
1560 default 0xa0008000 if ARCH_IOP32X ||\
1561 ARCH_PXA ||\
1562 MACH_MX27
1563 default 0xc0008000 if ARCH_LH7A40X ||\
1564 MACH_MX21
1565 default 0xf0008000 if ARCH_AAEC2000 ||\
1566 ARCH_L7200
1567 default 0xc0028000 if ARCH_CLPS711X
1568 default 0x70008000 if ARCH_AT91 && (ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
1569 default 0x20008000 if ARCH_AT91 && !(ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
1570 default 0xc0008000 if ARCH_DAVINCI && ARCH_DAVINCI_DA8XX
1571 default 0x80008000 if ARCH_DAVINCI && !ARCH_DAVINCI_DA8XX
1572 default 0x00008000 if ARCH_EP93XX && EP93XX_SDCE3_SYNC_PHYS_OFFSET
1573 default 0xc0008000 if ARCH_EP93XX && EP93XX_SDCE0_PHYS_OFFSET
1574 default 0xd0008000 if ARCH_EP93XX && EP93XX_SDCE1_PHYS_OFFSET
1575 default 0xe0008000 if ARCH_EP93XX && EP93XX_SDCE2_PHYS_OFFSET
1576 default 0xf0008000 if ARCH_EP93XX && EP93XX_SDCE3_ASYNC_PHYS_OFFSET
1577 default 0x00008000 if ARCH_GEMINI && GEMINI_MEM_SWAP
1578 default 0x10008000 if ARCH_GEMINI && !GEMINI_MEM_SWAP
1579 default 0x70008000 if ARCH_REALVIEW && REALVIEW_HIGH_PHYS_OFFSET
1580 default 0x00008000 if ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET
1581 default 0xc0208000 if ARCH_SA1100 && SA1111
1582 default 0xc0008000 if ARCH_SA1100 && !SA1111
1583 default 0x30108000 if ARCH_S3C2410 && PM_H1940
1584 default 0x28E08000 if ARCH_U300 && MACH_U300_SINGLE_RAM
1585 default 0x48008000 if ARCH_U300 && !MACH_U300_SINGLE_RAM
1586 help
1587 ZRELADDR is the physical address where the decompressed kernel
1588 image will be placed. ZRELADDR has to be specified when the
1589 assumption of AUTO_ZRELADDR is not valid, or when ZBOOT_ROM is
1590 selected.
1591
Linus Torvalds1da177e2005-04-16 15:20:36 -07001592endmenu
1593
Russell Kingac9d7ef2008-08-18 17:26:00 +01001594menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001595
Ben Dooks89c52ed2009-07-30 23:23:24 +01001596if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001597
1598source "drivers/cpufreq/Kconfig"
1599
1600config CPU_FREQ_SA1100
1601 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001602
1603config CPU_FREQ_SA1110
1604 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001605
1606config CPU_FREQ_INTEGRATOR
1607 tristate "CPUfreq driver for ARM Integrator CPUs"
1608 depends on ARCH_INTEGRATOR && CPU_FREQ
1609 default y
1610 help
1611 This enables the CPUfreq driver for ARM Integrator CPUs.
1612
1613 For details, take a look at <file:Documentation/cpu-freq>.
1614
1615 If in doubt, say Y.
1616
Russell King9e2697f2007-12-14 13:30:14 +00001617config CPU_FREQ_PXA
1618 bool
1619 depends on CPU_FREQ && ARCH_PXA && PXA25x
1620 default y
1621 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1622
Mark Brownb3748dd2009-06-15 11:23:20 +01001623config CPU_FREQ_S3C64XX
1624 bool "CPUfreq support for Samsung S3C64XX CPUs"
1625 depends on CPU_FREQ && CPU_S3C6410
1626
Ben Dooks9d56c022009-07-30 23:23:25 +01001627config CPU_FREQ_S3C
1628 bool
1629 help
1630 Internal configuration node for common cpufreq on Samsung SoC
1631
1632config CPU_FREQ_S3C24XX
1633 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1634 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1635 select CPU_FREQ_S3C
1636 help
1637 This enables the CPUfreq driver for the Samsung S3C24XX family
1638 of CPUs.
1639
1640 For details, take a look at <file:Documentation/cpu-freq>.
1641
1642 If in doubt, say N.
1643
1644config CPU_FREQ_S3C24XX_PLL
1645 bool "Support CPUfreq changing of PLL frequency"
1646 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1647 help
1648 Compile in support for changing the PLL frequency from the
1649 S3C24XX series CPUfreq driver. The PLL takes time to settle
1650 after a frequency change, so by default it is not enabled.
1651
1652 This also means that the PLL tables for the selected CPU(s) will
1653 be built which may increase the size of the kernel image.
1654
1655config CPU_FREQ_S3C24XX_DEBUG
1656 bool "Debug CPUfreq Samsung driver core"
1657 depends on CPU_FREQ_S3C24XX
1658 help
1659 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1660
1661config CPU_FREQ_S3C24XX_IODEBUG
1662 bool "Debug CPUfreq Samsung driver IO timing"
1663 depends on CPU_FREQ_S3C24XX
1664 help
1665 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1666
Ben Dookse6d197a2009-07-30 23:23:42 +01001667config CPU_FREQ_S3C24XX_DEBUGFS
1668 bool "Export debugfs for CPUFreq"
1669 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1670 help
1671 Export status information via debugfs.
1672
Linus Torvalds1da177e2005-04-16 15:20:36 -07001673endif
1674
Russell Kingac9d7ef2008-08-18 17:26:00 +01001675source "drivers/cpuidle/Kconfig"
1676
1677endmenu
1678
Linus Torvalds1da177e2005-04-16 15:20:36 -07001679menu "Floating point emulation"
1680
1681comment "At least one emulation must be selected"
1682
1683config FPE_NWFPE
1684 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001685 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001686 ---help---
1687 Say Y to include the NWFPE floating point emulator in the kernel.
1688 This is necessary to run most binaries. Linux does not currently
1689 support floating point hardware so you need to say Y here even if
1690 your machine has an FPA or floating point co-processor podule.
1691
1692 You may say N here if you are going to load the Acorn FPEmulator
1693 early in the bootup.
1694
1695config FPE_NWFPE_XP
1696 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001697 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001698 help
1699 Say Y to include 80-bit support in the kernel floating-point
1700 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1701 Note that gcc does not generate 80-bit operations by default,
1702 so in most cases this option only enlarges the size of the
1703 floating point emulator without any good reason.
1704
1705 You almost surely want to say N here.
1706
1707config FPE_FASTFPE
1708 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001709 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001710 ---help---
1711 Say Y here to include the FAST floating point emulator in the kernel.
1712 This is an experimental much faster emulator which now also has full
1713 precision for the mantissa. It does not support any exceptions.
1714 It is very simple, and approximately 3-6 times faster than NWFPE.
1715
1716 It should be sufficient for most programs. It may be not suitable
1717 for scientific calculations, but you have to check this for yourself.
1718 If you do not feel you need a faster FP emulation you should better
1719 choose NWFPE.
1720
1721config VFP
1722 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001723 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724 help
1725 Say Y to include VFP support code in the kernel. This is needed
1726 if your hardware includes a VFP unit.
1727
1728 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1729 release notes and additional status information.
1730
1731 Say N if your target does not have VFP hardware.
1732
Catalin Marinas25ebee02007-09-25 15:22:24 +01001733config VFPv3
1734 bool
1735 depends on VFP
1736 default y if CPU_V7
1737
Catalin Marinasb5872db2008-01-10 19:16:17 +01001738config NEON
1739 bool "Advanced SIMD (NEON) Extension support"
1740 depends on VFPv3 && CPU_V7
1741 help
1742 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1743 Extension.
1744
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745endmenu
1746
1747menu "Userspace binary formats"
1748
1749source "fs/Kconfig.binfmt"
1750
1751config ARTHUR
1752 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001753 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001754 help
1755 Say Y here to include the kernel code necessary if you want to run
1756 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1757 experimental; if this sounds frightening, say N and sleep in peace.
1758 You can also say M here to compile this support as a module (which
1759 will be called arthur).
1760
1761endmenu
1762
1763menu "Power management options"
1764
Russell Kingeceab4a2005-11-15 11:31:41 +00001765source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001766
Johannes Bergf4cb5702007-12-08 02:14:00 +01001767config ARCH_SUSPEND_POSSIBLE
1768 def_bool y
1769
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770endmenu
1771
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001772source "net/Kconfig"
1773
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001774source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001775
1776source "fs/Kconfig"
1777
Linus Torvalds1da177e2005-04-16 15:20:36 -07001778source "arch/arm/Kconfig.debug"
1779
1780source "security/Kconfig"
1781
1782source "crypto/Kconfig"
1783
1784source "lib/Kconfig"