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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
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050015 select HAVE_OPROFILE
Jason Wessel5cbad0e2008-02-20 13:33:40 -060016 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050017 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080018 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040019 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040020 select HAVE_GENERIC_DMA_COHERENT
Linus Torvalds1da177e2005-04-16 15:20:36 -070021 help
22 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000023 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000025 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 Europe. There is an ARM Linux project with a web page at
27 <http://www.arm.linux.org.uk/>.
28
Russell King1a189b92008-04-13 21:41:55 +010029config HAVE_PWM
30 bool
31
Ralf Baechle75e71532007-02-09 17:08:58 +000032config SYS_SUPPORTS_APM_EMULATION
33 bool
34
David Brownell0a938b92007-03-05 00:30:18 -080035config GENERIC_GPIO
36 bool
David Brownell0a938b92007-03-05 00:30:18 -080037
Kevin Hilman746140c2006-09-22 00:16:30 +010038config GENERIC_TIME
39 bool
Kevin Hilman746140c2006-09-22 00:16:30 +010040
Kevin Hilman0567a0c2007-03-13 20:29:24 +010041config GENERIC_CLOCKEVENTS
42 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010043
Catalin Marinasa8655e82008-02-04 17:30:57 +010044config GENERIC_CLOCKEVENTS_BROADCAST
45 bool
46 depends on GENERIC_CLOCKEVENTS
47 default y if SMP && !LOCAL_TIMERS
48
Linus Torvalds1da177e2005-04-16 15:20:36 -070049config MMU
50 bool
51 default y
52
Al Viro5ea81762007-02-11 15:41:31 +000053config NO_IOPORT
54 bool
Al Viro5ea81762007-02-11 15:41:31 +000055
Linus Torvalds1da177e2005-04-16 15:20:36 -070056config EISA
57 bool
58 ---help---
59 The Extended Industry Standard Architecture (EISA) bus was
60 developed as an open alternative to the IBM MicroChannel bus.
61
62 The EISA bus provided some of the features of the IBM MicroChannel
63 bus while maintaining backward compatibility with cards made for
64 the older ISA bus. The EISA bus saw limited use between 1988 and
65 1995 when it was made obsolete by the PCI bus.
66
67 Say Y here if you are building a kernel for an EISA-based machine.
68
69 Otherwise, say N.
70
71config SBUS
72 bool
73
74config MCA
75 bool
76 help
77 MicroChannel Architecture is found in some IBM PS/2 machines and
78 laptops. It is a bus system similar to PCI or ISA. See
79 <file:Documentation/mca.txt> (and especially the web page given
80 there) before attempting to build an MCA bus kernel.
81
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010082config GENERIC_HARDIRQS
83 bool
84 default y
85
Russell Kingf16fb1e2007-04-28 09:59:37 +010086config STACKTRACE_SUPPORT
87 bool
88 default y
89
Nicolas Pitref76e9152008-04-24 01:31:46 -040090config HAVE_LATENCYTOP_SUPPORT
91 bool
92 depends on !SMP
93 default y
94
Russell Kingf16fb1e2007-04-28 09:59:37 +010095config LOCKDEP_SUPPORT
96 bool
97 default y
98
Russell King7ad1bcb2006-08-27 12:07:02 +010099config TRACE_IRQFLAGS_SUPPORT
100 bool
101 default y
102
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100103config HARDIRQS_SW_RESEND
104 bool
105 default y
106
107config GENERIC_IRQ_PROBE
108 bool
109 default y
110
Nick Piggin95c354f2008-01-30 13:31:20 +0100111config GENERIC_LOCKBREAK
112 bool
113 default y
114 depends on SMP && PREEMPT
115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116config RWSEM_GENERIC_SPINLOCK
117 bool
118 default y
119
120config RWSEM_XCHGADD_ALGORITHM
121 bool
122
David Howellsf0d1b0b2006-12-08 02:37:49 -0800123config ARCH_HAS_ILOG2_U32
124 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800125
126config ARCH_HAS_ILOG2_U64
127 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800128
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800129config GENERIC_HWEIGHT
130 bool
131 default y
132
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133config GENERIC_CALIBRATE_DELAY
134 bool
135 default y
136
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100137config ARCH_MAY_HAVE_PC_FDC
138 bool
139
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800140config ZONE_DMA
141 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800142
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143config GENERIC_ISA_DMA
144 bool
145
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146config FIQ
147 bool
148
Al Viro034d2f52005-12-19 16:27:59 -0500149config ARCH_MTD_XIP
150 bool
151
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100152config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100153 def_bool y
154
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500155if OPROFILE
156
157config OPROFILE_ARMV6
158 def_bool y
159 depends on CPU_V6 && !SMP
160 select OPROFILE_ARM11_CORE
161
162config OPROFILE_MPCORE
163 def_bool y
164 depends on CPU_V6 && SMP
165 select OPROFILE_ARM11_CORE
166
167config OPROFILE_ARM11_CORE
168 bool
169
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100170config OPROFILE_ARMV7
171 def_bool y
172 depends on CPU_V7 && !SMP
173 bool
174
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500175endif
176
Hyok S. Choic760fc12006-03-27 15:18:50 +0100177config VECTORS_BASE
178 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900179 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100180 default DRAM_BASE if REMAP_VECTORS_TO_RAM
181 default 0x00000000
182 help
183 The base address of exception vectors.
184
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185source "init/Kconfig"
186
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700187source "kernel/Kconfig.freezer"
188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189menu "System Type"
190
191choice
192 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000193 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100195config ARCH_AAEC2000
196 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000197 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100198 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700199 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100200 help
201 This enables support for systems based on the Agilent AAEC-2000
202
203config ARCH_INTEGRATOR
204 bool "ARM Ltd. Integrator family"
205 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700206 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000207 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100208 select ICST525
209 help
210 Support for ARM's Integrator platform.
211
212config ARCH_REALVIEW
213 bool "ARM Ltd. RealView family"
214 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700215 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000216 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100217 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100218 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100219 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100220 help
221 This enables support for ARM Ltd RealView boards.
222
223config ARCH_VERSATILE
224 bool "ARM Ltd. Versatile family"
225 select ARM_AMBA
226 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700227 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000228 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100229 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100230 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100231 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 help
233 This enables support for ARM Ltd Versatile board.
234
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100235config ARCH_AT91
236 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800237 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100238 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700239 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100240 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100241 This enables support for systems based on the Atmel AT91RM9200,
242 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100243
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100245 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000246 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000247 help
248 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249
Russell King788c9702009-04-26 14:21:59 +0100250config ARCH_GEMINI
251 bool "Cortina Systems Gemini"
252 select CPU_FA526
253 select GENERIC_GPIO
254 select ARCH_REQUIRE_GPIOLIB
255 help
256 Support for the Cortina Systems Gemini family SoCs
257
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258config ARCH_EBSA110
259 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000260 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100261 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000262 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 help
264 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000265 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266 Ethernet interface, two PCMCIA sockets, two serial ports and a
267 parallel port.
268
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000269config ARCH_EP93XX
270 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000271 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000272 select ARM_AMBA
273 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100274 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700275 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000276 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700277 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100278 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000279 help
280 This enables support for the Cirrus EP93xx series of CPUs.
281
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282config ARCH_FOOTBRIDGE
283 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000284 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000286 help
287 Support for systems based on the DC21285 companion chip
288 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289
Russell King788c9702009-04-26 14:21:59 +0100290config ARCH_MXC
291 bool "Freescale MXC/iMX-based"
292 select GENERIC_TIME
293 select GENERIC_CLOCKEVENTS
294 select ARCH_MTD_XIP
295 select GENERIC_GPIO
296 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100297 select HAVE_CLK
Russell King788c9702009-04-26 14:21:59 +0100298 help
299 Support for Freescale MXC/iMX-based family of processors
300
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100301config ARCH_STMP3XXX
302 bool "Freescale STMP3xxx"
303 select CPU_ARM926T
304 select HAVE_CLK
305 select COMMON_CLKDEV
306 select ARCH_REQUIRE_GPIOLIB
307 select GENERIC_TIME
308 select GENERIC_CLOCKEVENTS
309 select GENERIC_GPIO
310 select USB_ARCH_HAS_EHCI
311 help
312 Support for systems based on the Freescale 3xxx CPUs.
313
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100314config ARCH_NETX
315 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000316 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100317 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100318 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100319 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000320 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100321 This enables support for systems based on the Hilscher NetX Soc
322
323config ARCH_H720X
324 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000325 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100326 select ISA_DMA_API
327 help
328 This enables support for systems based on the Hynix HMS720x
329
Russell King3b938be2007-05-12 11:25:44 +0100330config ARCH_IOP13XX
331 bool "IOP13xx-based"
332 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000333 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100334 select PLAT_IOP
335 select PCI
336 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100337 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100338 help
339 Support for Intel's IOP13XX (XScale) family of processors.
340
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100341config ARCH_IOP32X
342 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100343 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000344 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100345 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100346 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100347 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100348 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000349 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100350 Support for Intel's 80219 and IOP32X (XScale) family of
351 processors.
352
353config ARCH_IOP33X
354 bool "IOP33x-based"
355 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000356 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100357 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100358 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100359 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100360 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100361 help
362 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363
Russell King3b938be2007-05-12 11:25:44 +0100364config ARCH_IXP23XX
365 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100366 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000367 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100368 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100369 help
Russell King3b938be2007-05-12 11:25:44 +0100370 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371
372config ARCH_IXP2000
373 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100374 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000375 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100376 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000377 help
378 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379
Russell King3b938be2007-05-12 11:25:44 +0100380config ARCH_IXP4XX
381 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100382 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000383 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100384 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100385 select GENERIC_TIME
386 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100387 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100388 help
Russell King3b938be2007-05-12 11:25:44 +0100389 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100390
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391config ARCH_L7200
392 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000393 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394 select FIQ
395 help
396 Say Y here if you intend to run this kernel on a LinkUp Systems
397 L7200 Software Development Board which uses an ARM720T processor.
398 Information on this board can be obtained at:
399
400 <http://www.linkupsys.com/>
401
402 If you have any questions or comments about the Linux kernel port
403 to this board, send e-mail to <sjhill@cotw.com>.
404
Saeed Bishara651c74c2008-06-22 22:45:06 +0200405config ARCH_KIRKWOOD
406 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000407 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200408 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200409 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700410 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200411 select GENERIC_TIME
412 select GENERIC_CLOCKEVENTS
413 select PLAT_ORION
414 help
415 Support for the following Marvell Kirkwood series SoCs:
416 88F6180, 88F6192 and 88F6281.
417
Russell King788c9702009-04-26 14:21:59 +0100418config ARCH_LOKI
419 bool "Marvell Loki (88RC8480)"
420 select CPU_FEROCEON
421 select GENERIC_TIME
422 select GENERIC_CLOCKEVENTS
423 select PLAT_ORION
424 help
425 Support for the Marvell Loki (88RC8480) SoC.
426
427config ARCH_MV78XX0
428 bool "Marvell MV78xx0"
429 select CPU_FEROCEON
430 select PCI
431 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700432 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100433 select GENERIC_TIME
434 select GENERIC_CLOCKEVENTS
435 select PLAT_ORION
436 help
437 Support for the following Marvell MV78xx0 series SoCs:
438 MV781x0, MV782x0.
439
440config ARCH_ORION5X
441 bool "Marvell Orion"
442 depends on MMU
443 select CPU_FEROCEON
444 select PCI
445 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700446 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100447 select GENERIC_TIME
448 select GENERIC_CLOCKEVENTS
449 select PLAT_ORION
450 help
451 Support for the following Marvell Orion 5x series SoCs:
452 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
453 Orion-2 (5281), Orion-1-90 (6183).
454
455config ARCH_MMP
456 bool "Marvell PXA168/910"
457 depends on MMU
458 select GENERIC_GPIO
459 select ARCH_REQUIRE_GPIOLIB
460 select HAVE_CLK
461 select COMMON_CLKDEV
462 select GENERIC_TIME
463 select GENERIC_CLOCKEVENTS
464 select TICK_ONESHOT
465 select PLAT_PXA
466 help
467 Support for Marvell's PXA168/910 processor line.
468
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100469config ARCH_KS8695
470 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000471 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100472 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000473 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100474 help
475 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
476 System-on-Chip devices.
477
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100478config ARCH_NS9XXX
479 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000480 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100481 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100482 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100483 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700484 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100485 help
486 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
487 System.
488
489 <http://www.digi.com/products/microprocessors/index.jsp>
490
Russell King788c9702009-04-26 14:21:59 +0100491config ARCH_W90X900
492 bool "Nuvoton W90X900 CPU"
493 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100494 select ARCH_REQUIRE_GPIOLIB
495 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100496 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100497 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100498 select GENERIC_TIME
499 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200500 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100501 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
502 At present, the w90x900 has been renamed nuc900, regarding
503 the ARM series product line, you can login the following
504 link address to know more.
505
506 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
507 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400508
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100509config ARCH_PNX4008
510 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000511 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700512 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100513 help
514 This enables support for Philips PNX4008 mobile platform.
515
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700517 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100518 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500519 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800520 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700521 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000522 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700523 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100524 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100525 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000526 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800527 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000528 help
eric miao2c8086a2007-09-11 19:13:17 -0700529 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530
Russell King788c9702009-04-26 14:21:59 +0100531config ARCH_MSM
532 bool "Qualcomm MSM"
533 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800534 select GENERIC_TIME
535 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800536 help
Russell King788c9702009-04-26 14:21:59 +0100537 Support for Qualcomm MSM7K based systems. This runs on the ARM11
538 apps processor of the MSM7K and depends on a shared memory
539 interface to the ARM9 modem processor which runs the baseband stack
540 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800541
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542config ARCH_RPC
543 bool "RiscPC"
544 select ARCH_ACORN
545 select FIQ
546 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100547 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100548 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000549 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000550 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100551 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552 help
553 On the Acorn Risc-PC, Linux can support the internal IDE disk and
554 CD-ROM interface, serial and parallel port, and the floppy drive.
555
556config ARCH_SA1100
557 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000558 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100559 select ISA
Russell King05944d72006-11-30 20:43:51 +0000560 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500561 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800562 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000563 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100564 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700565 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100566 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700567 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000568 help
569 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570
571config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100572 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800573 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700574 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575 help
576 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
577 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000578 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579
Ben Dooksa08ab632008-10-21 14:06:39 +0100580config ARCH_S3C64XX
581 bool "Samsung S3C64XX"
582 select GENERIC_GPIO
583 select HAVE_CLK
584 help
585 Samsung S3C64XX series based systems
586
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587config ARCH_SHARK
588 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000589 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100590 select ISA
591 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100592 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100593 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000594 help
595 Support for the StrongARM based Digital DNARD machine, also known
596 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597
598config ARCH_LH7A40X
599 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000600 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100601 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
602 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603 help
604 Say Y here for systems based on one of the Sharp LH7A40X
605 System on a Chip processors. These CPUs include an ARM922T
606 core with a wide array of integrated devices for
607 hand-held and low-power applications.
608
Linus Walleijd98aac72009-04-27 10:21:46 +0100609config ARCH_U300
610 bool "ST-Ericsson U300 Series"
611 depends on MMU
612 select CPU_ARM926T
613 select ARM_AMBA
614 select ARM_VIC
615 select GENERIC_TIME
616 select GENERIC_CLOCKEVENTS
617 select HAVE_CLK
618 select COMMON_CLKDEV
619 select GENERIC_GPIO
620 help
621 Support for ST-Ericsson U300 series mobile platforms.
622
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100623config ARCH_DAVINCI
624 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000625 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100626 select GENERIC_TIME
627 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100628 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700629 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700630 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100631 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700632 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700633 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700634 select GENERIC_ALLOCATOR
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100635 help
636 Support for TI's DaVinci platform.
637
Russell King3b938be2007-05-12 11:25:44 +0100638config ARCH_OMAP
639 bool "TI OMAP"
640 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700641 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700642 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100643 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700644 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100645 help
646 Support for TI's OMAP platform (OMAP1 and OMAP2).
647
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648endchoice
649
650source "arch/arm/mach-clps711x/Kconfig"
651
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000652source "arch/arm/mach-ep93xx/Kconfig"
653
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654source "arch/arm/mach-footbridge/Kconfig"
655
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200656source "arch/arm/mach-gemini/Kconfig"
657
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658source "arch/arm/mach-integrator/Kconfig"
659
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100660source "arch/arm/mach-iop32x/Kconfig"
661
662source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663
Dan Williams285f5fa2006-12-07 02:59:39 +0100664source "arch/arm/mach-iop13xx/Kconfig"
665
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666source "arch/arm/mach-ixp4xx/Kconfig"
667
668source "arch/arm/mach-ixp2000/Kconfig"
669
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100670source "arch/arm/mach-ixp23xx/Kconfig"
671
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200672source "arch/arm/mach-loki/Kconfig"
673
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200674source "arch/arm/mach-mv78xx0/Kconfig"
675
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676source "arch/arm/mach-pxa/Kconfig"
Eric Miaobd5ce432009-01-20 12:06:01 +0800677source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678
Eric Miao49cbe782009-01-20 14:15:18 +0800679source "arch/arm/mach-mmp/Kconfig"
680
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681source "arch/arm/mach-sa1100/Kconfig"
682
Tony Lindgrend48af152005-07-10 19:58:17 +0100683source "arch/arm/plat-omap/Kconfig"
684
685source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686
Tony Lindgren1dbae812005-11-10 14:26:51 +0000687source "arch/arm/mach-omap2/Kconfig"
688
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400689source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400690
Saeed Bishara651c74c2008-06-22 22:45:06 +0200691source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692
Ben Dooksa21765a2007-02-11 18:31:01 +0100693source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100694source "arch/arm/plat-s3c64xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100695source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100696
697if ARCH_S3C2410
698source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100700source "arch/arm/mach-s3c2412/Kconfig"
701source "arch/arm/mach-s3c2440/Kconfig"
702source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100703source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100704endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705
Ben Dooksa08ab632008-10-21 14:06:39 +0100706if ARCH_S3C64XX
707source "arch/arm/mach-s3c6400/Kconfig"
708source "arch/arm/mach-s3c6410/Kconfig"
709endif
710
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100711source "arch/arm/plat-stmp3xxx/Kconfig"
712
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713source "arch/arm/mach-lh7a40x/Kconfig"
714
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715source "arch/arm/mach-h720x/Kconfig"
716
717source "arch/arm/mach-versatile/Kconfig"
718
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100719source "arch/arm/mach-aaec2000/Kconfig"
720
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000721source "arch/arm/mach-realview/Kconfig"
722
Andrew Victor9d041262007-02-05 11:42:07 +0100723source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000724
Quinn Jensen52c543f2007-07-09 22:06:53 +0100725source "arch/arm/plat-mxc/Kconfig"
726
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100727source "arch/arm/mach-netx/Kconfig"
728
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100729source "arch/arm/mach-ns9xxx/Kconfig"
730
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100731source "arch/arm/mach-davinci/Kconfig"
732
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100733source "arch/arm/mach-ks8695/Kconfig"
734
Brian Swetland9e73c842007-11-26 04:12:13 -0800735source "arch/arm/mach-msm/Kconfig"
736
Linus Walleijd98aac72009-04-27 10:21:46 +0100737source "arch/arm/mach-u300/Kconfig"
738
wanzongshun7ec80dd2008-12-03 03:55:38 +0100739source "arch/arm/mach-w90x900/Kconfig"
740
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741# Definitions to make life easier
742config ARCH_ACORN
743 bool
744
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100745config PLAT_IOP
746 bool
747
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400748config PLAT_ORION
749 bool
750
Eric Miaobd5ce432009-01-20 12:06:01 +0800751config PLAT_PXA
752 bool
753
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754source arch/arm/mm/Kconfig
755
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100756config IWMMXT
757 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800758 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
759 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100760 help
761 Enable support for iWMMXt context switching at run time if
762 running on a CPU that supports it.
763
Linus Torvalds1da177e2005-04-16 15:20:36 -0700764# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
765config XSCALE_PMU
766 bool
767 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
768 default y
769
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100770if !MMU
771source "arch/arm/Kconfig-nommu"
772endif
773
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100774config ARM_ERRATA_411920
775 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
776 depends on CPU_V6 && !SMP
777 help
778 Invalidation of the Instruction Cache operation can
779 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
780 It does not affect the MPCore. This option enables the ARM Ltd.
781 recommended workaround.
782
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100783config ARM_ERRATA_430973
784 bool "ARM errata: Stale prediction on replaced interworking branch"
785 depends on CPU_V7
786 help
787 This option enables the workaround for the 430973 Cortex-A8
788 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
789 interworking branch is replaced with another code sequence at the
790 same virtual address, whether due to self-modifying code or virtual
791 to physical address re-mapping, Cortex-A8 does not recover from the
792 stale interworking branch prediction. This results in Cortex-A8
793 executing the new code sequence in the incorrect ARM or Thumb state.
794 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
795 and also flushes the branch target cache at every context switch.
796 Note that setting specific bits in the ACTLR register may not be
797 available in non-secure mode.
798
Catalin Marinas855c5512009-04-30 17:06:15 +0100799config ARM_ERRATA_458693
800 bool "ARM errata: Processor deadlock when a false hazard is created"
801 depends on CPU_V7
802 help
803 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
804 erratum. For very specific sequences of memory operations, it is
805 possible for a hazard condition intended for a cache line to instead
806 be incorrectly associated with a different cache line. This false
807 hazard might then cause a processor deadlock. The workaround enables
808 the L1 caching of the NEON accesses and disables the PLD instruction
809 in the ACTLR register. Note that setting specific bits in the ACTLR
810 register may not be available in non-secure mode.
811
Catalin Marinas0516e462009-04-30 17:06:20 +0100812config ARM_ERRATA_460075
813 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
814 depends on CPU_V7
815 help
816 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
817 erratum. Any asynchronous access to the L2 cache may encounter a
818 situation in which recent store transactions to the L2 cache are lost
819 and overwritten with stale memory contents from external memory. The
820 workaround disables the write-allocate mode for the L2 cache via the
821 ACTLR register. Note that setting specific bits in the ACTLR register
822 may not be available in non-secure mode.
823
Linus Torvalds1da177e2005-04-16 15:20:36 -0700824endmenu
825
826source "arch/arm/common/Kconfig"
827
828config FORCE_MAX_ZONEORDER
829 int
830 depends on SA1111
831 default "9"
832
833menu "Bus support"
834
835config ARM_AMBA
836 bool
837
838config ISA
839 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840 help
841 Find out whether you have ISA slots on your motherboard. ISA is the
842 name of a bus system, i.e. the way the CPU talks to the other stuff
843 inside your box. Other bus systems are PCI, EISA, MicroChannel
844 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
845 newer boards don't support it. If you have ISA, say Y, otherwise N.
846
Russell King065909b2006-01-04 15:44:16 +0000847# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848config ISA_DMA
849 bool
Russell King065909b2006-01-04 15:44:16 +0000850 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851
Russell King065909b2006-01-04 15:44:16 +0000852# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100853config ISA_DMA_API
854 bool
Al Viro5cae8412005-05-04 05:39:22 +0100855
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100857 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858 help
859 Find out whether you have a PCI motherboard. PCI is the name of a
860 bus system, i.e. the way the CPU talks to the other stuff inside
861 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
862 VESA. If you have PCI, say Y, otherwise N.
863
Matthew Wilcox36e23592007-07-10 10:54:40 -0600864config PCI_SYSCALL
865 def_bool PCI
866
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867# Select the host bridge type
868config PCI_HOST_VIA82C505
869 bool
870 depends on PCI && ARCH_SHARK
871 default y
872
Mike Rapoporta0113a92007-11-25 08:55:34 +0100873config PCI_HOST_ITE8152
874 bool
875 depends on PCI && MACH_ARMCORE
876 default y
877 select DMABOUNCE
878
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879source "drivers/pci/Kconfig"
880
881source "drivers/pcmcia/Kconfig"
882
883endmenu
884
885menu "Kernel Features"
886
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100887source "kernel/time/Kconfig"
888
Linus Torvalds1da177e2005-04-16 15:20:36 -0700889config SMP
890 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +0100891 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
892 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
Russell Kingbc282482009-05-17 18:58:34 +0100893 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +0200894 select USE_GENERIC_SMP_HELPERS
Santosh Shilimkar934f8be2009-04-28 20:52:05 +0530895 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896 help
897 This enables support for systems with more than one CPU. If you have
898 a system with only one CPU, like most personal computers, say N. If
899 you have a system with more than one CPU, say Y.
900
901 If you say N here, the kernel will run on single and multiprocessor
902 machines, but will use only one CPU of a multiprocessor machine. If
903 you say Y here, the kernel will run on many, but not all, single
904 processor machines. On a single processor machine, the kernel will
905 run faster if you say N here.
906
Adrian Bunk03502fa2008-02-03 15:50:21 +0200907 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
909 <http://www.linuxdoc.org/docs.html#howto>.
910
911 If you don't know what to do here, say N.
912
Russell Kinga8cbcd92009-05-16 11:51:14 +0100913config HAVE_ARM_SCU
914 bool
915 depends on SMP
916 help
917 This option enables support for the ARM system coherency unit
918
Russell Kingf32f4ce2009-05-16 12:14:21 +0100919config HAVE_ARM_TWD
920 bool
921 depends on SMP
922 help
923 This options enables support for the ARM timer and watchdog unit
924
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100925choice
926 prompt "Memory split"
927 default VMSPLIT_3G
928 help
929 Select the desired split between kernel and user memory.
930
931 If you are not absolutely sure what you are doing, leave this
932 option alone!
933
934 config VMSPLIT_3G
935 bool "3G/1G user/kernel split"
936 config VMSPLIT_2G
937 bool "2G/2G user/kernel split"
938 config VMSPLIT_1G
939 bool "1G/3G user/kernel split"
940endchoice
941
942config PAGE_OFFSET
943 hex
944 default 0x40000000 if VMSPLIT_1G
945 default 0x80000000 if VMSPLIT_2G
946 default 0xC0000000
947
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948config NR_CPUS
949 int "Maximum number of CPUs (2-32)"
950 range 2 32
951 depends on SMP
952 default "4"
953
Russell Kinga054a812005-11-02 22:24:33 +0000954config HOTPLUG_CPU
955 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
956 depends on SMP && HOTPLUG && EXPERIMENTAL
957 help
958 Say Y here to experiment with turning CPUs off and on. CPUs
959 can be controlled through /sys/devices/system/cpu.
960
Russell King37ee16a2005-11-08 19:08:05 +0000961config LOCAL_TIMERS
962 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +0100963 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
964 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
Russell King37ee16a2005-11-08 19:08:05 +0000965 default y
Santosh Shilimkar934f8be2009-04-28 20:52:05 +0530966 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4)
Russell King37ee16a2005-11-08 19:08:05 +0000967 help
968 Enable support for local timers on SMP platforms, rather then the
969 legacy IPI broadcast method. Local timers allows the system
970 accounting to be spread across the timer interval, preventing a
971 "thundering herd" at every timer tick.
972
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973config PREEMPT
974 bool "Preemptible Kernel (EXPERIMENTAL)"
975 depends on EXPERIMENTAL
976 help
977 This option reduces the latency of the kernel when reacting to
978 real-time or interactive events by allowing a low priority process to
979 be preempted even if it is in kernel mode executing a system call.
980 This allows applications to run more reliably even when the system is
981 under load.
982
983 Say Y here if you are building a kernel for a desktop, embedded
984 or real-time system. Say N if you are unsure.
985
Russell Kingf8065812006-03-02 22:41:59 +0000986config HZ
987 int
988 default 128 if ARCH_L7200
989 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000990 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100991 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000992 default 100
993
Nicolas Pitre704bdda02006-01-14 16:33:50 +0000994config AEABI
995 bool "Use the ARM EABI to compile the kernel"
996 help
997 This option allows for the kernel to be compiled using the latest
998 ARM ABI (aka EABI). This is only useful if you are using a user
999 space environment that is also compiled with EABI.
1000
1001 Since there are major incompatibilities between the legacy ABI and
1002 EABI, especially with regard to structure member alignment, this
1003 option also changes the kernel syscall calling convention to
1004 disambiguate both ABIs and allow for backward compatibility support
1005 (selected with CONFIG_OABI_COMPAT).
1006
1007 To use this you need GCC version 4.0.0 or later.
1008
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001009config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001010 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001011 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001012 default y
1013 help
1014 This option preserves the old syscall interface along with the
1015 new (ARM EABI) one. It also provides a compatibility layer to
1016 intercept syscalls that have structure arguments which layout
1017 in memory differs between the legacy ABI and the new ARM EABI
1018 (only for non "thumb" binaries). This option adds a tiny
1019 overhead to all syscalls and produces a slightly larger kernel.
1020 If you know you'll be using only pure EABI user space then you
1021 can say N here. If this option is not selected and you attempt
1022 to execute a legacy ABI binary then the result will be
1023 UNPREDICTABLE (in fact it can be predicted that it won't work
1024 at all). If in doubt say Y.
1025
Mel Gormaneb335752009-05-13 17:34:48 +01001026config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001027 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001028
Russell King07a2f732008-10-01 21:39:58 +01001029# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001030config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032
Russell King05944d72006-11-30 20:43:51 +00001033config ARCH_SPARSEMEM_ENABLE
1034 bool
1035
Russell King07a2f732008-10-01 21:39:58 +01001036config ARCH_SPARSEMEM_DEFAULT
1037 def_bool ARCH_SPARSEMEM_ENABLE
1038
Russell King05944d72006-11-30 20:43:51 +00001039config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001040 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001041
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001042config NODES_SHIFT
1043 int
1044 default "4" if ARCH_LH7A40X
1045 default "2"
1046 depends on NEED_MULTIPLE_NODES
1047
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001048config HIGHMEM
1049 bool "High Memory Support (EXPERIMENTAL)"
1050 depends on MMU && EXPERIMENTAL
1051 help
1052 The address space of ARM processors is only 4 Gigabytes large
1053 and it has to accommodate user address space, kernel address
1054 space as well as some memory mapped IO. That means that, if you
1055 have a large amount of physical memory and/or IO, not all of the
1056 memory can be "permanently mapped" by the kernel. The physical
1057 memory that is not permanently mapped is called "high memory".
1058
1059 Depending on the selected kernel/user memory split, minimum
1060 vmalloc space and actual amount of RAM, you may not need this
1061 option which should result in a slightly faster kernel.
1062
1063 If unsure, say n.
1064
Dave Hansen3f22ab22005-06-23 00:07:43 -07001065source "mm/Kconfig"
1066
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067config LEDS
1068 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001069 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001070 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1072 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001073 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001074 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001075 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076 help
1077 If you say Y here, the LEDs on your machine will be used
1078 to provide useful information about your current system status.
1079
1080 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1081 be able to select which LEDs are active using the options below. If
1082 you are compiling a kernel for the EBSA-110 or the LART however, the
1083 red LED will simply flash regularly to indicate that the system is
1084 still functional. It is safe to say Y here if you have a CATS
1085 system, but the driver will do nothing.
1086
1087config LEDS_TIMER
1088 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001089 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1090 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001092 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093 default y if ARCH_EBSA110
1094 help
1095 If you say Y here, one of the system LEDs (the green one on the
1096 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1097 will flash regularly to indicate that the system is still
1098 operational. This is mainly useful to kernel hackers who are
1099 debugging unstable kernels.
1100
1101 The LART uses the same LED for both Timer LED and CPU usage LED
1102 functions. You may choose to use both, but the Timer LED function
1103 will overrule the CPU usage LED.
1104
1105config LEDS_CPU
1106 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001107 !ARCH_OMAP) \
1108 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1109 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110 depends on LEDS
1111 help
1112 If you say Y here, the red LED will be used to give a good real
1113 time indication of CPU usage, by lighting whenever the idle task
1114 is not currently executing.
1115
1116 The LART uses the same LED for both Timer LED and CPU usage LED
1117 functions. You may choose to use both, but the Timer LED function
1118 will overrule the CPU usage LED.
1119
1120config ALIGNMENT_TRAP
1121 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001122 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123 default y if !ARCH_EBSA110
1124 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001125 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1127 address divisible by 4. On 32-bit ARM processors, these non-aligned
1128 fetch/store instructions will be emulated in software if you say
1129 here, which has a severe performance impact. This is necessary for
1130 correct operation of some network protocols. With an IP-only
1131 configuration it is safe to say N, otherwise say Y.
1132
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001133config UACCESS_WITH_MEMCPY
1134 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1135 depends on MMU && EXPERIMENTAL
1136 default y if CPU_FEROCEON
1137 help
1138 Implement faster copy_to_user and clear_user methods for CPU
1139 cores where a 8-word STM instruction give significantly higher
1140 memory write throughput than a sequence of individual 32bit stores.
1141
1142 A possible side effect is a slight increase in scheduling latency
1143 between threads sharing the same address space if they invoke
1144 such copy operations with large buffers.
1145
1146 However, if the CPU data cache is using a write-allocate mode,
1147 this option is unlikely to provide any performance gain.
1148
Linus Torvalds1da177e2005-04-16 15:20:36 -07001149endmenu
1150
1151menu "Boot options"
1152
1153# Compressed boot loader in ROM. Yes, we really want to ask about
1154# TEXT and BSS so we preserve their values in the config files.
1155config ZBOOT_ROM_TEXT
1156 hex "Compressed ROM boot loader base address"
1157 default "0"
1158 help
1159 The physical address at which the ROM-able zImage is to be
1160 placed in the target. Platforms which normally make use of
1161 ROM-able zImage formats normally set this to a suitable
1162 value in their defconfig file.
1163
1164 If ZBOOT_ROM is not enabled, this has no effect.
1165
1166config ZBOOT_ROM_BSS
1167 hex "Compressed ROM boot loader BSS address"
1168 default "0"
1169 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001170 The base address of an area of read/write memory in the target
1171 for the ROM-able zImage which must be available while the
1172 decompressor is running. It must be large enough to hold the
1173 entire decompressed kernel plus an additional 128 KiB.
1174 Platforms which normally make use of ROM-able zImage formats
1175 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176
1177 If ZBOOT_ROM is not enabled, this has no effect.
1178
1179config ZBOOT_ROM
1180 bool "Compressed boot loader in ROM/flash"
1181 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1182 help
1183 Say Y here if you intend to execute your compressed kernel image
1184 (zImage) directly from ROM or flash. If unsure, say N.
1185
1186config CMDLINE
1187 string "Default kernel command string"
1188 default ""
1189 help
1190 On some architectures (EBSA110 and CATS), there is currently no way
1191 for the boot loader to pass arguments to the kernel. For these
1192 architectures, you should supply some command-line options at build
1193 time by entering them here. As a minimum, you should specify the
1194 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1195
1196config XIP_KERNEL
1197 bool "Kernel Execute-In-Place from ROM"
1198 depends on !ZBOOT_ROM
1199 help
1200 Execute-In-Place allows the kernel to run from non-volatile storage
1201 directly addressable by the CPU, such as NOR flash. This saves RAM
1202 space since the text section of the kernel is not loaded from flash
1203 to RAM. Read-write sections, such as the data section and stack,
1204 are still copied to RAM. The XIP kernel is not compressed since
1205 it has to run directly from flash, so it will take more space to
1206 store it. The flash address used to link the kernel object files,
1207 and for storing it, is configuration dependent. Therefore, if you
1208 say Y here, you must know the proper physical address where to
1209 store the kernel image depending on your own flash memory usage.
1210
1211 Also note that the make target becomes "make xipImage" rather than
1212 "make zImage" or "make Image". The final kernel binary to put in
1213 ROM memory will be arch/arm/boot/xipImage.
1214
1215 If unsure, say N.
1216
1217config XIP_PHYS_ADDR
1218 hex "XIP Kernel Physical Location"
1219 depends on XIP_KERNEL
1220 default "0x00080000"
1221 help
1222 This is the physical address in your flash memory the kernel will
1223 be linked for and stored to. This address is dependent on your
1224 own flash usage.
1225
Richard Purdiec587e4a2007-02-06 21:29:00 +01001226config KEXEC
1227 bool "Kexec system call (EXPERIMENTAL)"
1228 depends on EXPERIMENTAL
1229 help
1230 kexec is a system call that implements the ability to shutdown your
1231 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001232 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001233 you can start any kernel with it, not just Linux.
1234
1235 It is an ongoing process to be certain the hardware in a machine
1236 is properly shutdown, so do not be surprised if this code does not
1237 initially work for you. It may help to enable device hotplugging
1238 support.
1239
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001240config ATAGS_PROC
1241 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001242 depends on KEXEC
1243 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001244 help
1245 Should the atags used to boot the kernel be exported in an "atags"
1246 file in procfs. Useful with kexec.
1247
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248endmenu
1249
Russell Kingac9d7ef2008-08-18 17:26:00 +01001250menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251
Mark Brownb3748dd2009-06-15 11:23:20 +01001252if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_PXA || ARCH_S3C64XX)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253
1254source "drivers/cpufreq/Kconfig"
1255
1256config CPU_FREQ_SA1100
1257 bool
Dmitry Artamonow7bc35b52009-02-20 10:16:01 +01001258 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259 default y
1260
1261config CPU_FREQ_SA1110
1262 bool
1263 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1264 default y
1265
1266config CPU_FREQ_INTEGRATOR
1267 tristate "CPUfreq driver for ARM Integrator CPUs"
1268 depends on ARCH_INTEGRATOR && CPU_FREQ
1269 default y
1270 help
1271 This enables the CPUfreq driver for ARM Integrator CPUs.
1272
1273 For details, take a look at <file:Documentation/cpu-freq>.
1274
1275 If in doubt, say Y.
1276
Russell King9e2697f2007-12-14 13:30:14 +00001277config CPU_FREQ_PXA
1278 bool
1279 depends on CPU_FREQ && ARCH_PXA && PXA25x
1280 default y
1281 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1282
Mark Brownb3748dd2009-06-15 11:23:20 +01001283config CPU_FREQ_S3C64XX
1284 bool "CPUfreq support for Samsung S3C64XX CPUs"
1285 depends on CPU_FREQ && CPU_S3C6410
1286
Linus Torvalds1da177e2005-04-16 15:20:36 -07001287endif
1288
Russell Kingac9d7ef2008-08-18 17:26:00 +01001289source "drivers/cpuidle/Kconfig"
1290
1291endmenu
1292
Linus Torvalds1da177e2005-04-16 15:20:36 -07001293menu "Floating point emulation"
1294
1295comment "At least one emulation must be selected"
1296
1297config FPE_NWFPE
1298 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001299 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001300 ---help---
1301 Say Y to include the NWFPE floating point emulator in the kernel.
1302 This is necessary to run most binaries. Linux does not currently
1303 support floating point hardware so you need to say Y here even if
1304 your machine has an FPA or floating point co-processor podule.
1305
1306 You may say N here if you are going to load the Acorn FPEmulator
1307 early in the bootup.
1308
1309config FPE_NWFPE_XP
1310 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001311 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001312 help
1313 Say Y to include 80-bit support in the kernel floating-point
1314 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1315 Note that gcc does not generate 80-bit operations by default,
1316 so in most cases this option only enlarges the size of the
1317 floating point emulator without any good reason.
1318
1319 You almost surely want to say N here.
1320
1321config FPE_FASTFPE
1322 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001323 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001324 ---help---
1325 Say Y here to include the FAST floating point emulator in the kernel.
1326 This is an experimental much faster emulator which now also has full
1327 precision for the mantissa. It does not support any exceptions.
1328 It is very simple, and approximately 3-6 times faster than NWFPE.
1329
1330 It should be sufficient for most programs. It may be not suitable
1331 for scientific calculations, but you have to check this for yourself.
1332 If you do not feel you need a faster FP emulation you should better
1333 choose NWFPE.
1334
1335config VFP
1336 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001337 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001338 help
1339 Say Y to include VFP support code in the kernel. This is needed
1340 if your hardware includes a VFP unit.
1341
1342 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1343 release notes and additional status information.
1344
1345 Say N if your target does not have VFP hardware.
1346
Catalin Marinas25ebee02007-09-25 15:22:24 +01001347config VFPv3
1348 bool
1349 depends on VFP
1350 default y if CPU_V7
1351
Catalin Marinasb5872db2008-01-10 19:16:17 +01001352config NEON
1353 bool "Advanced SIMD (NEON) Extension support"
1354 depends on VFPv3 && CPU_V7
1355 help
1356 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1357 Extension.
1358
Linus Torvalds1da177e2005-04-16 15:20:36 -07001359endmenu
1360
1361menu "Userspace binary formats"
1362
1363source "fs/Kconfig.binfmt"
1364
1365config ARTHUR
1366 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001367 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368 help
1369 Say Y here to include the kernel code necessary if you want to run
1370 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1371 experimental; if this sounds frightening, say N and sleep in peace.
1372 You can also say M here to compile this support as a module (which
1373 will be called arthur).
1374
1375endmenu
1376
1377menu "Power management options"
1378
Russell Kingeceab4a2005-11-15 11:31:41 +00001379source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001380
Johannes Bergf4cb5702007-12-08 02:14:00 +01001381config ARCH_SUSPEND_POSSIBLE
1382 def_bool y
1383
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384endmenu
1385
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001386source "net/Kconfig"
1387
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388menu "Device Drivers"
1389
1390source "drivers/base/Kconfig"
1391
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001392source "drivers/connector/Kconfig"
1393
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001394if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395source "drivers/mtd/Kconfig"
1396endif
1397
1398source "drivers/parport/Kconfig"
1399
1400source "drivers/pnp/Kconfig"
1401
1402source "drivers/block/Kconfig"
1403
Russell King58273e52007-10-12 22:24:09 +01001404# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1405
1406source "drivers/misc/Kconfig"
1407
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409
1410source "drivers/scsi/Kconfig"
1411
Martin Michlmayreb370f02006-11-17 00:14:35 +01001412source "drivers/ata/Kconfig"
1413
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414source "drivers/md/Kconfig"
1415
1416source "drivers/message/fusion/Kconfig"
1417
1418source "drivers/ieee1394/Kconfig"
1419
1420source "drivers/message/i2o/Kconfig"
1421
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001422source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001423
1424source "drivers/isdn/Kconfig"
1425
1426# input before char - char/joystick depends on it. As does USB.
1427
1428source "drivers/input/Kconfig"
1429
1430source "drivers/char/Kconfig"
1431
1432source "drivers/i2c/Kconfig"
1433
David Brownell8ae12a02006-01-08 13:34:19 -08001434source "drivers/spi/Kconfig"
1435
David Brownella9c5fff2008-02-04 22:28:17 -08001436source "drivers/gpio/Kconfig"
1437
Alessandro Zummo04916c02006-03-10 22:30:01 +00001438source "drivers/w1/Kconfig"
1439
Russell King58273e52007-10-12 22:24:09 +01001440source "drivers/power/Kconfig"
1441
Jean Delvaread2f9312005-07-02 18:15:49 +02001442source "drivers/hwmon/Kconfig"
1443
Russell Kingac9d7ef2008-08-18 17:26:00 +01001444source "drivers/thermal/Kconfig"
1445
Russell King70dfa3f2007-11-07 14:13:35 +00001446source "drivers/watchdog/Kconfig"
1447
Russell King58273e52007-10-12 22:24:09 +01001448source "drivers/ssb/Kconfig"
1449
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450#source "drivers/l3/Kconfig"
1451
Russell Kinga4e137a2005-08-18 10:06:59 +01001452source "drivers/mfd/Kconfig"
1453
Linus Torvalds1da177e2005-04-16 15:20:36 -07001454source "drivers/media/Kconfig"
1455
1456source "drivers/video/Kconfig"
1457
1458source "sound/Kconfig"
1459
Sascha Hauerc2dade52006-12-12 10:32:42 +01001460source "drivers/hid/Kconfig"
1461
Linus Torvalds1da177e2005-04-16 15:20:36 -07001462source "drivers/usb/Kconfig"
1463
Greg Kroah-Hartman2f86c3e2008-09-17 16:34:11 +01001464source "drivers/uwb/Kconfig"
1465
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466source "drivers/mmc/Kconfig"
1467
Russell Kingac9d7ef2008-08-18 17:26:00 +01001468source "drivers/memstick/Kconfig"
1469
1470source "drivers/accessibility/Kconfig"
1471
Russell King58273e52007-10-12 22:24:09 +01001472source "drivers/leds/Kconfig"
1473
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001474source "drivers/rtc/Kconfig"
1475
Dan Williams58168152007-01-02 11:10:43 -07001476source "drivers/dma/Kconfig"
1477
Dan Williamsabf07b12008-01-18 23:26:10 +01001478source "drivers/dca/Kconfig"
1479
Russell Kingac9d7ef2008-08-18 17:26:00 +01001480source "drivers/auxdisplay/Kconfig"
1481
Liam Girdwoodba7e4762008-04-30 17:13:42 +01001482source "drivers/regulator/Kconfig"
1483
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001484source "drivers/uio/Kconfig"
1485
F. Duncan M. Haldane6e38a2b2008-11-07 18:17:51 -05001486source "drivers/staging/Kconfig"
1487
Linus Torvalds1da177e2005-04-16 15:20:36 -07001488endmenu
1489
1490source "fs/Kconfig"
1491
Linus Torvalds1da177e2005-04-16 15:20:36 -07001492source "arch/arm/Kconfig.debug"
1493
1494source "security/Kconfig"
1495
1496source "crypto/Kconfig"
1497
1498source "lib/Kconfig"