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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
Russell Kingeb7fffa2009-07-05 22:41:31 +0100220 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100221 help
222 This enables support for ARM Ltd RealView boards.
223
224config ARCH_VERSATILE
225 bool "ARM Ltd. Versatile family"
226 select ARM_AMBA
227 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700228 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000229 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100230 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100231 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100232 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100233 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100234 help
235 This enables support for ARM Ltd Versatile board.
236
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100237config ARCH_AT91
238 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800239 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100240 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700241 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100242 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100243 This enables support for systems based on the Atmel AT91RM9200,
244 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100245
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100247 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000248 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000249 help
250 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251
Russell King788c9702009-04-26 14:21:59 +0100252config ARCH_GEMINI
253 bool "Cortina Systems Gemini"
254 select CPU_FA526
255 select GENERIC_GPIO
256 select ARCH_REQUIRE_GPIOLIB
257 help
258 Support for the Cortina Systems Gemini family SoCs
259
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260config ARCH_EBSA110
261 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000262 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100263 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000264 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 help
266 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000267 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268 Ethernet interface, two PCMCIA sockets, two serial ports and a
269 parallel port.
270
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000271config ARCH_EP93XX
272 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000273 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000274 select ARM_AMBA
275 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100276 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700277 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000278 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700279 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100280 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000281 help
282 This enables support for the Cirrus EP93xx series of CPUs.
283
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284config ARCH_FOOTBRIDGE
285 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000286 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000288 help
289 Support for systems based on the DC21285 companion chip
290 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291
Russell King788c9702009-04-26 14:21:59 +0100292config ARCH_MXC
293 bool "Freescale MXC/iMX-based"
294 select GENERIC_TIME
295 select GENERIC_CLOCKEVENTS
296 select ARCH_MTD_XIP
297 select GENERIC_GPIO
298 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100299 select HAVE_CLK
Russell King788c9702009-04-26 14:21:59 +0100300 help
301 Support for Freescale MXC/iMX-based family of processors
302
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100303config ARCH_STMP3XXX
304 bool "Freescale STMP3xxx"
305 select CPU_ARM926T
306 select HAVE_CLK
307 select COMMON_CLKDEV
308 select ARCH_REQUIRE_GPIOLIB
309 select GENERIC_TIME
310 select GENERIC_CLOCKEVENTS
311 select GENERIC_GPIO
312 select USB_ARCH_HAS_EHCI
313 help
314 Support for systems based on the Freescale 3xxx CPUs.
315
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100316config ARCH_NETX
317 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000318 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100319 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100320 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100321 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000322 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100323 This enables support for systems based on the Hilscher NetX Soc
324
325config ARCH_H720X
326 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000327 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100328 select ISA_DMA_API
329 help
330 This enables support for systems based on the Hynix HMS720x
331
Russell King3b938be2007-05-12 11:25:44 +0100332config ARCH_IOP13XX
333 bool "IOP13xx-based"
334 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000335 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100336 select PLAT_IOP
337 select PCI
338 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100339 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100340 help
341 Support for Intel's IOP13XX (XScale) family of processors.
342
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100343config ARCH_IOP32X
344 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100345 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000346 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100347 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100348 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100349 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100350 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000351 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100352 Support for Intel's 80219 and IOP32X (XScale) family of
353 processors.
354
355config ARCH_IOP33X
356 bool "IOP33x-based"
357 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000358 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100359 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100360 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100361 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100362 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100363 help
364 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365
Russell King3b938be2007-05-12 11:25:44 +0100366config ARCH_IXP23XX
367 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100368 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000369 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100370 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100371 help
Russell King3b938be2007-05-12 11:25:44 +0100372 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373
374config ARCH_IXP2000
375 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100376 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000377 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100378 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000379 help
380 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381
Russell King3b938be2007-05-12 11:25:44 +0100382config ARCH_IXP4XX
383 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100384 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000385 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100386 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100387 select GENERIC_TIME
388 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100389 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100390 help
Russell King3b938be2007-05-12 11:25:44 +0100391 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100392
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393config ARCH_L7200
394 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000395 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396 select FIQ
397 help
398 Say Y here if you intend to run this kernel on a LinkUp Systems
399 L7200 Software Development Board which uses an ARM720T processor.
400 Information on this board can be obtained at:
401
402 <http://www.linkupsys.com/>
403
404 If you have any questions or comments about the Linux kernel port
405 to this board, send e-mail to <sjhill@cotw.com>.
406
Saeed Bishara651c74c2008-06-22 22:45:06 +0200407config ARCH_KIRKWOOD
408 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000409 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200410 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200411 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700412 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200413 select GENERIC_TIME
414 select GENERIC_CLOCKEVENTS
415 select PLAT_ORION
416 help
417 Support for the following Marvell Kirkwood series SoCs:
418 88F6180, 88F6192 and 88F6281.
419
Russell King788c9702009-04-26 14:21:59 +0100420config ARCH_LOKI
421 bool "Marvell Loki (88RC8480)"
422 select CPU_FEROCEON
423 select GENERIC_TIME
424 select GENERIC_CLOCKEVENTS
425 select PLAT_ORION
426 help
427 Support for the Marvell Loki (88RC8480) SoC.
428
429config ARCH_MV78XX0
430 bool "Marvell MV78xx0"
431 select CPU_FEROCEON
432 select PCI
433 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700434 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100435 select GENERIC_TIME
436 select GENERIC_CLOCKEVENTS
437 select PLAT_ORION
438 help
439 Support for the following Marvell MV78xx0 series SoCs:
440 MV781x0, MV782x0.
441
442config ARCH_ORION5X
443 bool "Marvell Orion"
444 depends on MMU
445 select CPU_FEROCEON
446 select PCI
447 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700448 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100449 select GENERIC_TIME
450 select GENERIC_CLOCKEVENTS
451 select PLAT_ORION
452 help
453 Support for the following Marvell Orion 5x series SoCs:
454 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
455 Orion-2 (5281), Orion-1-90 (6183).
456
457config ARCH_MMP
458 bool "Marvell PXA168/910"
459 depends on MMU
460 select GENERIC_GPIO
461 select ARCH_REQUIRE_GPIOLIB
462 select HAVE_CLK
463 select COMMON_CLKDEV
464 select GENERIC_TIME
465 select GENERIC_CLOCKEVENTS
466 select TICK_ONESHOT
467 select PLAT_PXA
468 help
469 Support for Marvell's PXA168/910 processor line.
470
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100471config ARCH_KS8695
472 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000473 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100474 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000475 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100476 help
477 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
478 System-on-Chip devices.
479
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100480config ARCH_NS9XXX
481 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000482 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100483 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100484 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100485 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700486 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100487 help
488 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
489 System.
490
491 <http://www.digi.com/products/microprocessors/index.jsp>
492
Russell King788c9702009-04-26 14:21:59 +0100493config ARCH_W90X900
494 bool "Nuvoton W90X900 CPU"
495 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100496 select ARCH_REQUIRE_GPIOLIB
497 select GENERIC_GPIO
wanzongshun0e4a34b2009-06-10 15:50:44 +0100498 select COMMON_CLKDEV
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200499 help
Russell King788c9702009-04-26 14:21:59 +0100500 Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
501 can login www.mcuos.com or www.nuvoton.com to know more.
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400502
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100503config ARCH_PNX4008
504 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000505 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700506 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100507 help
508 This enables support for Philips PNX4008 mobile platform.
509
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700511 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100512 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500513 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800514 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700515 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000516 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700517 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100518 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100519 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000520 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800521 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000522 help
eric miao2c8086a2007-09-11 19:13:17 -0700523 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524
Russell King788c9702009-04-26 14:21:59 +0100525config ARCH_MSM
526 bool "Qualcomm MSM"
527 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800528 select GENERIC_TIME
529 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800530 help
Russell King788c9702009-04-26 14:21:59 +0100531 Support for Qualcomm MSM7K based systems. This runs on the ARM11
532 apps processor of the MSM7K and depends on a shared memory
533 interface to the ARM9 modem processor which runs the baseband stack
534 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800535
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536config ARCH_RPC
537 bool "RiscPC"
538 select ARCH_ACORN
539 select FIQ
540 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100541 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100542 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000543 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000544 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100545 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546 help
547 On the Acorn Risc-PC, Linux can support the internal IDE disk and
548 CD-ROM interface, serial and parallel port, and the floppy drive.
549
550config ARCH_SA1100
551 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000552 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100553 select ISA
Russell King05944d72006-11-30 20:43:51 +0000554 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500555 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800556 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000557 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100558 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700559 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100560 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700561 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000562 help
563 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564
565config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100566 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800567 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700568 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569 help
570 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
571 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000572 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700573
Ben Dooksa08ab632008-10-21 14:06:39 +0100574config ARCH_S3C64XX
575 bool "Samsung S3C64XX"
576 select GENERIC_GPIO
577 select HAVE_CLK
578 help
579 Samsung S3C64XX series based systems
580
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581config ARCH_SHARK
582 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000583 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100584 select ISA
585 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100586 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100587 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000588 help
589 Support for the StrongARM based Digital DNARD machine, also known
590 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591
592config ARCH_LH7A40X
593 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000594 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100595 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
596 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597 help
598 Say Y here for systems based on one of the Sharp LH7A40X
599 System on a Chip processors. These CPUs include an ARM922T
600 core with a wide array of integrated devices for
601 hand-held and low-power applications.
602
Linus Walleijd98aac72009-04-27 10:21:46 +0100603config ARCH_U300
604 bool "ST-Ericsson U300 Series"
605 depends on MMU
606 select CPU_ARM926T
607 select ARM_AMBA
608 select ARM_VIC
609 select GENERIC_TIME
610 select GENERIC_CLOCKEVENTS
611 select HAVE_CLK
612 select COMMON_CLKDEV
613 select GENERIC_GPIO
614 help
615 Support for ST-Ericsson U300 series mobile platforms.
616
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100617config ARCH_DAVINCI
618 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000619 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100620 select GENERIC_TIME
621 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100622 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700623 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700624 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100625 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700626 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700627 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700628 select GENERIC_ALLOCATOR
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100629 help
630 Support for TI's DaVinci platform.
631
Russell King3b938be2007-05-12 11:25:44 +0100632config ARCH_OMAP
633 bool "TI OMAP"
634 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700635 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700636 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100637 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700638 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100639 help
640 Support for TI's OMAP platform (OMAP1 and OMAP2).
641
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642endchoice
643
644source "arch/arm/mach-clps711x/Kconfig"
645
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000646source "arch/arm/mach-ep93xx/Kconfig"
647
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648source "arch/arm/mach-footbridge/Kconfig"
649
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200650source "arch/arm/mach-gemini/Kconfig"
651
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652source "arch/arm/mach-integrator/Kconfig"
653
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100654source "arch/arm/mach-iop32x/Kconfig"
655
656source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657
Dan Williams285f5fa2006-12-07 02:59:39 +0100658source "arch/arm/mach-iop13xx/Kconfig"
659
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660source "arch/arm/mach-ixp4xx/Kconfig"
661
662source "arch/arm/mach-ixp2000/Kconfig"
663
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100664source "arch/arm/mach-ixp23xx/Kconfig"
665
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200666source "arch/arm/mach-loki/Kconfig"
667
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200668source "arch/arm/mach-mv78xx0/Kconfig"
669
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670source "arch/arm/mach-pxa/Kconfig"
Eric Miaobd5ce432009-01-20 12:06:01 +0800671source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672
Eric Miao49cbe782009-01-20 14:15:18 +0800673source "arch/arm/mach-mmp/Kconfig"
674
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675source "arch/arm/mach-sa1100/Kconfig"
676
Tony Lindgrend48af152005-07-10 19:58:17 +0100677source "arch/arm/plat-omap/Kconfig"
678
679source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680
Tony Lindgren1dbae812005-11-10 14:26:51 +0000681source "arch/arm/mach-omap2/Kconfig"
682
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400683source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400684
Saeed Bishara651c74c2008-06-22 22:45:06 +0200685source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686
Ben Dooksa21765a2007-02-11 18:31:01 +0100687source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100688source "arch/arm/plat-s3c64xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100689source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100690
691if ARCH_S3C2410
692source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100694source "arch/arm/mach-s3c2412/Kconfig"
695source "arch/arm/mach-s3c2440/Kconfig"
696source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100697source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100698endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699
Ben Dooksa08ab632008-10-21 14:06:39 +0100700if ARCH_S3C64XX
701source "arch/arm/mach-s3c6400/Kconfig"
702source "arch/arm/mach-s3c6410/Kconfig"
703endif
704
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100705source "arch/arm/plat-stmp3xxx/Kconfig"
706
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707source "arch/arm/mach-lh7a40x/Kconfig"
708
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709source "arch/arm/mach-h720x/Kconfig"
710
711source "arch/arm/mach-versatile/Kconfig"
712
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100713source "arch/arm/mach-aaec2000/Kconfig"
714
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000715source "arch/arm/mach-realview/Kconfig"
716
Andrew Victor9d041262007-02-05 11:42:07 +0100717source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000718
Quinn Jensen52c543f2007-07-09 22:06:53 +0100719source "arch/arm/plat-mxc/Kconfig"
720
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100721source "arch/arm/mach-netx/Kconfig"
722
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100723source "arch/arm/mach-ns9xxx/Kconfig"
724
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100725source "arch/arm/mach-davinci/Kconfig"
726
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100727source "arch/arm/mach-ks8695/Kconfig"
728
Brian Swetland9e73c842007-11-26 04:12:13 -0800729source "arch/arm/mach-msm/Kconfig"
730
Linus Walleijd98aac72009-04-27 10:21:46 +0100731source "arch/arm/mach-u300/Kconfig"
732
wanzongshun7ec80dd2008-12-03 03:55:38 +0100733source "arch/arm/mach-w90x900/Kconfig"
734
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735# Definitions to make life easier
736config ARCH_ACORN
737 bool
738
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100739config PLAT_IOP
740 bool
741
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400742config PLAT_ORION
743 bool
744
Eric Miaobd5ce432009-01-20 12:06:01 +0800745config PLAT_PXA
746 bool
747
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748source arch/arm/mm/Kconfig
749
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100750config IWMMXT
751 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800752 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
753 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100754 help
755 Enable support for iWMMXt context switching at run time if
756 running on a CPU that supports it.
757
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
759config XSCALE_PMU
760 bool
761 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
762 default y
763
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100764if !MMU
765source "arch/arm/Kconfig-nommu"
766endif
767
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100768config ARM_ERRATA_411920
769 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
770 depends on CPU_V6 && !SMP
771 help
772 Invalidation of the Instruction Cache operation can
773 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
774 It does not affect the MPCore. This option enables the ARM Ltd.
775 recommended workaround.
776
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100777config ARM_ERRATA_430973
778 bool "ARM errata: Stale prediction on replaced interworking branch"
779 depends on CPU_V7
780 help
781 This option enables the workaround for the 430973 Cortex-A8
782 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
783 interworking branch is replaced with another code sequence at the
784 same virtual address, whether due to self-modifying code or virtual
785 to physical address re-mapping, Cortex-A8 does not recover from the
786 stale interworking branch prediction. This results in Cortex-A8
787 executing the new code sequence in the incorrect ARM or Thumb state.
788 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
789 and also flushes the branch target cache at every context switch.
790 Note that setting specific bits in the ACTLR register may not be
791 available in non-secure mode.
792
Catalin Marinas855c5512009-04-30 17:06:15 +0100793config ARM_ERRATA_458693
794 bool "ARM errata: Processor deadlock when a false hazard is created"
795 depends on CPU_V7
796 help
797 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
798 erratum. For very specific sequences of memory operations, it is
799 possible for a hazard condition intended for a cache line to instead
800 be incorrectly associated with a different cache line. This false
801 hazard might then cause a processor deadlock. The workaround enables
802 the L1 caching of the NEON accesses and disables the PLD instruction
803 in the ACTLR register. Note that setting specific bits in the ACTLR
804 register may not be available in non-secure mode.
805
Catalin Marinas0516e462009-04-30 17:06:20 +0100806config ARM_ERRATA_460075
807 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
808 depends on CPU_V7
809 help
810 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
811 erratum. Any asynchronous access to the L2 cache may encounter a
812 situation in which recent store transactions to the L2 cache are lost
813 and overwritten with stale memory contents from external memory. The
814 workaround disables the write-allocate mode for the L2 cache via the
815 ACTLR register. Note that setting specific bits in the ACTLR register
816 may not be available in non-secure mode.
817
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818endmenu
819
820source "arch/arm/common/Kconfig"
821
822config FORCE_MAX_ZONEORDER
823 int
824 depends on SA1111
825 default "9"
826
827menu "Bus support"
828
829config ARM_AMBA
830 bool
831
832config ISA
833 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834 help
835 Find out whether you have ISA slots on your motherboard. ISA is the
836 name of a bus system, i.e. the way the CPU talks to the other stuff
837 inside your box. Other bus systems are PCI, EISA, MicroChannel
838 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
839 newer boards don't support it. If you have ISA, say Y, otherwise N.
840
Russell King065909b2006-01-04 15:44:16 +0000841# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842config ISA_DMA
843 bool
Russell King065909b2006-01-04 15:44:16 +0000844 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845
Russell King065909b2006-01-04 15:44:16 +0000846# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100847config ISA_DMA_API
848 bool
Al Viro5cae8412005-05-04 05:39:22 +0100849
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100851 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852 help
853 Find out whether you have a PCI motherboard. PCI is the name of a
854 bus system, i.e. the way the CPU talks to the other stuff inside
855 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
856 VESA. If you have PCI, say Y, otherwise N.
857
Matthew Wilcox36e23592007-07-10 10:54:40 -0600858config PCI_SYSCALL
859 def_bool PCI
860
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861# Select the host bridge type
862config PCI_HOST_VIA82C505
863 bool
864 depends on PCI && ARCH_SHARK
865 default y
866
Mike Rapoporta0113a92007-11-25 08:55:34 +0100867config PCI_HOST_ITE8152
868 bool
869 depends on PCI && MACH_ARMCORE
870 default y
871 select DMABOUNCE
872
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873source "drivers/pci/Kconfig"
874
875source "drivers/pcmcia/Kconfig"
876
877endmenu
878
879menu "Kernel Features"
880
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100881source "kernel/time/Kconfig"
882
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883config SMP
884 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +0100885 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
886 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
Russell Kingbc282482009-05-17 18:58:34 +0100887 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +0200888 select USE_GENERIC_SMP_HELPERS
Santosh Shilimkar934f8be2009-04-28 20:52:05 +0530889 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890 help
891 This enables support for systems with more than one CPU. If you have
892 a system with only one CPU, like most personal computers, say N. If
893 you have a system with more than one CPU, say Y.
894
895 If you say N here, the kernel will run on single and multiprocessor
896 machines, but will use only one CPU of a multiprocessor machine. If
897 you say Y here, the kernel will run on many, but not all, single
898 processor machines. On a single processor machine, the kernel will
899 run faster if you say N here.
900
Adrian Bunk03502fa2008-02-03 15:50:21 +0200901 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
903 <http://www.linuxdoc.org/docs.html#howto>.
904
905 If you don't know what to do here, say N.
906
Russell Kinga8cbcd92009-05-16 11:51:14 +0100907config HAVE_ARM_SCU
908 bool
909 depends on SMP
910 help
911 This option enables support for the ARM system coherency unit
912
Russell Kingf32f4ce2009-05-16 12:14:21 +0100913config HAVE_ARM_TWD
914 bool
915 depends on SMP
916 help
917 This options enables support for the ARM timer and watchdog unit
918
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100919choice
920 prompt "Memory split"
921 default VMSPLIT_3G
922 help
923 Select the desired split between kernel and user memory.
924
925 If you are not absolutely sure what you are doing, leave this
926 option alone!
927
928 config VMSPLIT_3G
929 bool "3G/1G user/kernel split"
930 config VMSPLIT_2G
931 bool "2G/2G user/kernel split"
932 config VMSPLIT_1G
933 bool "1G/3G user/kernel split"
934endchoice
935
936config PAGE_OFFSET
937 hex
938 default 0x40000000 if VMSPLIT_1G
939 default 0x80000000 if VMSPLIT_2G
940 default 0xC0000000
941
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942config NR_CPUS
943 int "Maximum number of CPUs (2-32)"
944 range 2 32
945 depends on SMP
946 default "4"
947
Russell Kinga054a812005-11-02 22:24:33 +0000948config HOTPLUG_CPU
949 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
950 depends on SMP && HOTPLUG && EXPERIMENTAL
951 help
952 Say Y here to experiment with turning CPUs off and on. CPUs
953 can be controlled through /sys/devices/system/cpu.
954
Russell King37ee16a2005-11-08 19:08:05 +0000955config LOCAL_TIMERS
956 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +0100957 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
958 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
Russell King37ee16a2005-11-08 19:08:05 +0000959 default y
Santosh Shilimkar934f8be2009-04-28 20:52:05 +0530960 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4)
Russell King37ee16a2005-11-08 19:08:05 +0000961 help
962 Enable support for local timers on SMP platforms, rather then the
963 legacy IPI broadcast method. Local timers allows the system
964 accounting to be spread across the timer interval, preventing a
965 "thundering herd" at every timer tick.
966
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967config PREEMPT
968 bool "Preemptible Kernel (EXPERIMENTAL)"
969 depends on EXPERIMENTAL
970 help
971 This option reduces the latency of the kernel when reacting to
972 real-time or interactive events by allowing a low priority process to
973 be preempted even if it is in kernel mode executing a system call.
974 This allows applications to run more reliably even when the system is
975 under load.
976
977 Say Y here if you are building a kernel for a desktop, embedded
978 or real-time system. Say N if you are unsure.
979
Russell Kingf8065812006-03-02 22:41:59 +0000980config HZ
981 int
982 default 128 if ARCH_L7200
983 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000984 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100985 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000986 default 100
987
Nicolas Pitre704bdda02006-01-14 16:33:50 +0000988config AEABI
989 bool "Use the ARM EABI to compile the kernel"
990 help
991 This option allows for the kernel to be compiled using the latest
992 ARM ABI (aka EABI). This is only useful if you are using a user
993 space environment that is also compiled with EABI.
994
995 Since there are major incompatibilities between the legacy ABI and
996 EABI, especially with regard to structure member alignment, this
997 option also changes the kernel syscall calling convention to
998 disambiguate both ABIs and allow for backward compatibility support
999 (selected with CONFIG_OABI_COMPAT).
1000
1001 To use this you need GCC version 4.0.0 or later.
1002
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001003config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001004 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001005 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001006 default y
1007 help
1008 This option preserves the old syscall interface along with the
1009 new (ARM EABI) one. It also provides a compatibility layer to
1010 intercept syscalls that have structure arguments which layout
1011 in memory differs between the legacy ABI and the new ARM EABI
1012 (only for non "thumb" binaries). This option adds a tiny
1013 overhead to all syscalls and produces a slightly larger kernel.
1014 If you know you'll be using only pure EABI user space then you
1015 can say N here. If this option is not selected and you attempt
1016 to execute a legacy ABI binary then the result will be
1017 UNPREDICTABLE (in fact it can be predicted that it won't work
1018 at all). If in doubt say Y.
1019
Mel Gormaneb335752009-05-13 17:34:48 +01001020config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001021 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001022
Russell King07a2f732008-10-01 21:39:58 +01001023# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001024config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001026
Russell King05944d72006-11-30 20:43:51 +00001027config ARCH_SPARSEMEM_ENABLE
1028 bool
1029
Russell King07a2f732008-10-01 21:39:58 +01001030config ARCH_SPARSEMEM_DEFAULT
1031 def_bool ARCH_SPARSEMEM_ENABLE
1032
Russell King05944d72006-11-30 20:43:51 +00001033config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001034 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001035
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001036config NODES_SHIFT
1037 int
1038 default "4" if ARCH_LH7A40X
1039 default "2"
1040 depends on NEED_MULTIPLE_NODES
1041
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001042config HIGHMEM
1043 bool "High Memory Support (EXPERIMENTAL)"
1044 depends on MMU && EXPERIMENTAL
1045 help
1046 The address space of ARM processors is only 4 Gigabytes large
1047 and it has to accommodate user address space, kernel address
1048 space as well as some memory mapped IO. That means that, if you
1049 have a large amount of physical memory and/or IO, not all of the
1050 memory can be "permanently mapped" by the kernel. The physical
1051 memory that is not permanently mapped is called "high memory".
1052
1053 Depending on the selected kernel/user memory split, minimum
1054 vmalloc space and actual amount of RAM, you may not need this
1055 option which should result in a slightly faster kernel.
1056
1057 If unsure, say n.
1058
Dave Hansen3f22ab22005-06-23 00:07:43 -07001059source "mm/Kconfig"
1060
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061config LEDS
1062 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001063 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001064 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1066 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001067 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001068 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001069 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070 help
1071 If you say Y here, the LEDs on your machine will be used
1072 to provide useful information about your current system status.
1073
1074 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1075 be able to select which LEDs are active using the options below. If
1076 you are compiling a kernel for the EBSA-110 or the LART however, the
1077 red LED will simply flash regularly to indicate that the system is
1078 still functional. It is safe to say Y here if you have a CATS
1079 system, but the driver will do nothing.
1080
1081config LEDS_TIMER
1082 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001083 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1084 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001085 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001086 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087 default y if ARCH_EBSA110
1088 help
1089 If you say Y here, one of the system LEDs (the green one on the
1090 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1091 will flash regularly to indicate that the system is still
1092 operational. This is mainly useful to kernel hackers who are
1093 debugging unstable kernels.
1094
1095 The LART uses the same LED for both Timer LED and CPU usage LED
1096 functions. You may choose to use both, but the Timer LED function
1097 will overrule the CPU usage LED.
1098
1099config LEDS_CPU
1100 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001101 !ARCH_OMAP) \
1102 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1103 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104 depends on LEDS
1105 help
1106 If you say Y here, the red LED will be used to give a good real
1107 time indication of CPU usage, by lighting whenever the idle task
1108 is not currently executing.
1109
1110 The LART uses the same LED for both Timer LED and CPU usage LED
1111 functions. You may choose to use both, but the Timer LED function
1112 will overrule the CPU usage LED.
1113
1114config ALIGNMENT_TRAP
1115 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001116 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001117 default y if !ARCH_EBSA110
1118 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001119 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001120 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1121 address divisible by 4. On 32-bit ARM processors, these non-aligned
1122 fetch/store instructions will be emulated in software if you say
1123 here, which has a severe performance impact. This is necessary for
1124 correct operation of some network protocols. With an IP-only
1125 configuration it is safe to say N, otherwise say Y.
1126
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001127config UACCESS_WITH_MEMCPY
1128 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1129 depends on MMU && EXPERIMENTAL
1130 default y if CPU_FEROCEON
1131 help
1132 Implement faster copy_to_user and clear_user methods for CPU
1133 cores where a 8-word STM instruction give significantly higher
1134 memory write throughput than a sequence of individual 32bit stores.
1135
1136 A possible side effect is a slight increase in scheduling latency
1137 between threads sharing the same address space if they invoke
1138 such copy operations with large buffers.
1139
1140 However, if the CPU data cache is using a write-allocate mode,
1141 this option is unlikely to provide any performance gain.
1142
Linus Torvalds1da177e2005-04-16 15:20:36 -07001143endmenu
1144
1145menu "Boot options"
1146
1147# Compressed boot loader in ROM. Yes, we really want to ask about
1148# TEXT and BSS so we preserve their values in the config files.
1149config ZBOOT_ROM_TEXT
1150 hex "Compressed ROM boot loader base address"
1151 default "0"
1152 help
1153 The physical address at which the ROM-able zImage is to be
1154 placed in the target. Platforms which normally make use of
1155 ROM-able zImage formats normally set this to a suitable
1156 value in their defconfig file.
1157
1158 If ZBOOT_ROM is not enabled, this has no effect.
1159
1160config ZBOOT_ROM_BSS
1161 hex "Compressed ROM boot loader BSS address"
1162 default "0"
1163 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001164 The base address of an area of read/write memory in the target
1165 for the ROM-able zImage which must be available while the
1166 decompressor is running. It must be large enough to hold the
1167 entire decompressed kernel plus an additional 128 KiB.
1168 Platforms which normally make use of ROM-able zImage formats
1169 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170
1171 If ZBOOT_ROM is not enabled, this has no effect.
1172
1173config ZBOOT_ROM
1174 bool "Compressed boot loader in ROM/flash"
1175 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1176 help
1177 Say Y here if you intend to execute your compressed kernel image
1178 (zImage) directly from ROM or flash. If unsure, say N.
1179
1180config CMDLINE
1181 string "Default kernel command string"
1182 default ""
1183 help
1184 On some architectures (EBSA110 and CATS), there is currently no way
1185 for the boot loader to pass arguments to the kernel. For these
1186 architectures, you should supply some command-line options at build
1187 time by entering them here. As a minimum, you should specify the
1188 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1189
1190config XIP_KERNEL
1191 bool "Kernel Execute-In-Place from ROM"
1192 depends on !ZBOOT_ROM
1193 help
1194 Execute-In-Place allows the kernel to run from non-volatile storage
1195 directly addressable by the CPU, such as NOR flash. This saves RAM
1196 space since the text section of the kernel is not loaded from flash
1197 to RAM. Read-write sections, such as the data section and stack,
1198 are still copied to RAM. The XIP kernel is not compressed since
1199 it has to run directly from flash, so it will take more space to
1200 store it. The flash address used to link the kernel object files,
1201 and for storing it, is configuration dependent. Therefore, if you
1202 say Y here, you must know the proper physical address where to
1203 store the kernel image depending on your own flash memory usage.
1204
1205 Also note that the make target becomes "make xipImage" rather than
1206 "make zImage" or "make Image". The final kernel binary to put in
1207 ROM memory will be arch/arm/boot/xipImage.
1208
1209 If unsure, say N.
1210
1211config XIP_PHYS_ADDR
1212 hex "XIP Kernel Physical Location"
1213 depends on XIP_KERNEL
1214 default "0x00080000"
1215 help
1216 This is the physical address in your flash memory the kernel will
1217 be linked for and stored to. This address is dependent on your
1218 own flash usage.
1219
Richard Purdiec587e4a2007-02-06 21:29:00 +01001220config KEXEC
1221 bool "Kexec system call (EXPERIMENTAL)"
1222 depends on EXPERIMENTAL
1223 help
1224 kexec is a system call that implements the ability to shutdown your
1225 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001226 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001227 you can start any kernel with it, not just Linux.
1228
1229 It is an ongoing process to be certain the hardware in a machine
1230 is properly shutdown, so do not be surprised if this code does not
1231 initially work for you. It may help to enable device hotplugging
1232 support.
1233
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001234config ATAGS_PROC
1235 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001236 depends on KEXEC
1237 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001238 help
1239 Should the atags used to boot the kernel be exported in an "atags"
1240 file in procfs. Useful with kexec.
1241
Linus Torvalds1da177e2005-04-16 15:20:36 -07001242endmenu
1243
Russell Kingac9d7ef2008-08-18 17:26:00 +01001244menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245
Mark Brownb3748dd2009-06-15 11:23:20 +01001246if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_PXA || ARCH_S3C64XX)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001247
1248source "drivers/cpufreq/Kconfig"
1249
1250config CPU_FREQ_SA1100
1251 bool
Dmitry Artamonow7bc35b52009-02-20 10:16:01 +01001252 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253 default y
1254
1255config CPU_FREQ_SA1110
1256 bool
1257 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1258 default y
1259
1260config CPU_FREQ_INTEGRATOR
1261 tristate "CPUfreq driver for ARM Integrator CPUs"
1262 depends on ARCH_INTEGRATOR && CPU_FREQ
1263 default y
1264 help
1265 This enables the CPUfreq driver for ARM Integrator CPUs.
1266
1267 For details, take a look at <file:Documentation/cpu-freq>.
1268
1269 If in doubt, say Y.
1270
Russell King9e2697f2007-12-14 13:30:14 +00001271config CPU_FREQ_PXA
1272 bool
1273 depends on CPU_FREQ && ARCH_PXA && PXA25x
1274 default y
1275 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1276
Mark Brownb3748dd2009-06-15 11:23:20 +01001277config CPU_FREQ_S3C64XX
1278 bool "CPUfreq support for Samsung S3C64XX CPUs"
1279 depends on CPU_FREQ && CPU_S3C6410
1280
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281endif
1282
Russell Kingac9d7ef2008-08-18 17:26:00 +01001283source "drivers/cpuidle/Kconfig"
1284
1285endmenu
1286
Linus Torvalds1da177e2005-04-16 15:20:36 -07001287menu "Floating point emulation"
1288
1289comment "At least one emulation must be selected"
1290
1291config FPE_NWFPE
1292 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001293 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001294 ---help---
1295 Say Y to include the NWFPE floating point emulator in the kernel.
1296 This is necessary to run most binaries. Linux does not currently
1297 support floating point hardware so you need to say Y here even if
1298 your machine has an FPA or floating point co-processor podule.
1299
1300 You may say N here if you are going to load the Acorn FPEmulator
1301 early in the bootup.
1302
1303config FPE_NWFPE_XP
1304 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001305 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306 help
1307 Say Y to include 80-bit support in the kernel floating-point
1308 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1309 Note that gcc does not generate 80-bit operations by default,
1310 so in most cases this option only enlarges the size of the
1311 floating point emulator without any good reason.
1312
1313 You almost surely want to say N here.
1314
1315config FPE_FASTFPE
1316 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001317 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318 ---help---
1319 Say Y here to include the FAST floating point emulator in the kernel.
1320 This is an experimental much faster emulator which now also has full
1321 precision for the mantissa. It does not support any exceptions.
1322 It is very simple, and approximately 3-6 times faster than NWFPE.
1323
1324 It should be sufficient for most programs. It may be not suitable
1325 for scientific calculations, but you have to check this for yourself.
1326 If you do not feel you need a faster FP emulation you should better
1327 choose NWFPE.
1328
1329config VFP
1330 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001331 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332 help
1333 Say Y to include VFP support code in the kernel. This is needed
1334 if your hardware includes a VFP unit.
1335
1336 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1337 release notes and additional status information.
1338
1339 Say N if your target does not have VFP hardware.
1340
Catalin Marinas25ebee02007-09-25 15:22:24 +01001341config VFPv3
1342 bool
1343 depends on VFP
1344 default y if CPU_V7
1345
Catalin Marinasb5872db2008-01-10 19:16:17 +01001346config NEON
1347 bool "Advanced SIMD (NEON) Extension support"
1348 depends on VFPv3 && CPU_V7
1349 help
1350 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1351 Extension.
1352
Linus Torvalds1da177e2005-04-16 15:20:36 -07001353endmenu
1354
1355menu "Userspace binary formats"
1356
1357source "fs/Kconfig.binfmt"
1358
1359config ARTHUR
1360 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001361 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001362 help
1363 Say Y here to include the kernel code necessary if you want to run
1364 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1365 experimental; if this sounds frightening, say N and sleep in peace.
1366 You can also say M here to compile this support as a module (which
1367 will be called arthur).
1368
1369endmenu
1370
1371menu "Power management options"
1372
Russell Kingeceab4a2005-11-15 11:31:41 +00001373source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374
Johannes Bergf4cb5702007-12-08 02:14:00 +01001375config ARCH_SUSPEND_POSSIBLE
1376 def_bool y
1377
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378endmenu
1379
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001380source "net/Kconfig"
1381
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382menu "Device Drivers"
1383
1384source "drivers/base/Kconfig"
1385
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001386source "drivers/connector/Kconfig"
1387
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001388if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389source "drivers/mtd/Kconfig"
1390endif
1391
1392source "drivers/parport/Kconfig"
1393
1394source "drivers/pnp/Kconfig"
1395
1396source "drivers/block/Kconfig"
1397
Russell King58273e52007-10-12 22:24:09 +01001398# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1399
1400source "drivers/misc/Kconfig"
1401
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403
1404source "drivers/scsi/Kconfig"
1405
Martin Michlmayreb370f02006-11-17 00:14:35 +01001406source "drivers/ata/Kconfig"
1407
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408source "drivers/md/Kconfig"
1409
1410source "drivers/message/fusion/Kconfig"
1411
1412source "drivers/ieee1394/Kconfig"
1413
1414source "drivers/message/i2o/Kconfig"
1415
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001416source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417
1418source "drivers/isdn/Kconfig"
1419
1420# input before char - char/joystick depends on it. As does USB.
1421
1422source "drivers/input/Kconfig"
1423
1424source "drivers/char/Kconfig"
1425
1426source "drivers/i2c/Kconfig"
1427
David Brownell8ae12a02006-01-08 13:34:19 -08001428source "drivers/spi/Kconfig"
1429
David Brownella9c5fff2008-02-04 22:28:17 -08001430source "drivers/gpio/Kconfig"
1431
Alessandro Zummo04916c02006-03-10 22:30:01 +00001432source "drivers/w1/Kconfig"
1433
Russell King58273e52007-10-12 22:24:09 +01001434source "drivers/power/Kconfig"
1435
Jean Delvaread2f9312005-07-02 18:15:49 +02001436source "drivers/hwmon/Kconfig"
1437
Russell Kingac9d7ef2008-08-18 17:26:00 +01001438source "drivers/thermal/Kconfig"
1439
Russell King70dfa3f2007-11-07 14:13:35 +00001440source "drivers/watchdog/Kconfig"
1441
Russell King58273e52007-10-12 22:24:09 +01001442source "drivers/ssb/Kconfig"
1443
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444#source "drivers/l3/Kconfig"
1445
Russell Kinga4e137a2005-08-18 10:06:59 +01001446source "drivers/mfd/Kconfig"
1447
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448source "drivers/media/Kconfig"
1449
1450source "drivers/video/Kconfig"
1451
1452source "sound/Kconfig"
1453
Sascha Hauerc2dade52006-12-12 10:32:42 +01001454source "drivers/hid/Kconfig"
1455
Linus Torvalds1da177e2005-04-16 15:20:36 -07001456source "drivers/usb/Kconfig"
1457
Greg Kroah-Hartman2f86c3e2008-09-17 16:34:11 +01001458source "drivers/uwb/Kconfig"
1459
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460source "drivers/mmc/Kconfig"
1461
Russell Kingac9d7ef2008-08-18 17:26:00 +01001462source "drivers/memstick/Kconfig"
1463
1464source "drivers/accessibility/Kconfig"
1465
Russell King58273e52007-10-12 22:24:09 +01001466source "drivers/leds/Kconfig"
1467
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001468source "drivers/rtc/Kconfig"
1469
Dan Williams58168152007-01-02 11:10:43 -07001470source "drivers/dma/Kconfig"
1471
Dan Williamsabf07b12008-01-18 23:26:10 +01001472source "drivers/dca/Kconfig"
1473
Russell Kingac9d7ef2008-08-18 17:26:00 +01001474source "drivers/auxdisplay/Kconfig"
1475
Liam Girdwoodba7e4762008-04-30 17:13:42 +01001476source "drivers/regulator/Kconfig"
1477
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001478source "drivers/uio/Kconfig"
1479
F. Duncan M. Haldane6e38a2b2008-11-07 18:17:51 -05001480source "drivers/staging/Kconfig"
1481
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482endmenu
1483
1484source "fs/Kconfig"
1485
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486source "arch/arm/Kconfig.debug"
1487
1488source "security/Kconfig"
1489
1490source "crypto/Kconfig"
1491
1492source "lib/Kconfig"