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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
Ben Dooks89c52ed2009-07-30 23:23:24 +0100129config ARCH_HAS_CPUFREQ
130 bool
131 help
132 Internal node to signify that the ARCH has CPUFREQ support
133 and that the relevant menu configurations are displayed for
134 it.
135
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800136config GENERIC_HWEIGHT
137 bool
138 default y
139
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140config GENERIC_CALIBRATE_DELAY
141 bool
142 default y
143
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100144config ARCH_MAY_HAVE_PC_FDC
145 bool
146
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800147config ZONE_DMA
148 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800149
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150config GENERIC_ISA_DMA
151 bool
152
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153config FIQ
154 bool
155
Al Viro034d2f52005-12-19 16:27:59 -0500156config ARCH_MTD_XIP
157 bool
158
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100159config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100160 def_bool y
161
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500162if OPROFILE
163
164config OPROFILE_ARMV6
165 def_bool y
166 depends on CPU_V6 && !SMP
167 select OPROFILE_ARM11_CORE
168
169config OPROFILE_MPCORE
170 def_bool y
171 depends on CPU_V6 && SMP
172 select OPROFILE_ARM11_CORE
173
174config OPROFILE_ARM11_CORE
175 bool
176
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100177config OPROFILE_ARMV7
178 def_bool y
179 depends on CPU_V7 && !SMP
180 bool
181
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500182endif
183
Hyok S. Choic760fc12006-03-27 15:18:50 +0100184config VECTORS_BASE
185 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900186 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100187 default DRAM_BASE if REMAP_VECTORS_TO_RAM
188 default 0x00000000
189 help
190 The base address of exception vectors.
191
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192source "init/Kconfig"
193
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700194source "kernel/Kconfig.freezer"
195
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196menu "System Type"
197
198choice
199 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000200 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100202config ARCH_AAEC2000
203 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000204 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100205 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700206 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100207 help
208 This enables support for systems based on the Agilent AAEC-2000
209
210config ARCH_INTEGRATOR
211 bool "ARM Ltd. Integrator family"
212 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100213 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700214 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000215 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100216 select ICST525
217 help
218 Support for ARM's Integrator platform.
219
220config ARCH_REALVIEW
221 bool "ARM Ltd. RealView family"
222 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700223 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000224 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100225 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100226 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100227 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100228 help
229 This enables support for ARM Ltd RealView boards.
230
231config ARCH_VERSATILE
232 bool "ARM Ltd. Versatile family"
233 select ARM_AMBA
234 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700235 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000236 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100237 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100238 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100239 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100240 help
241 This enables support for ARM Ltd Versatile board.
242
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100243config ARCH_AT91
244 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800245 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100246 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700247 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100248 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100249 This enables support for systems based on the Atmel AT91RM9200,
250 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100251
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100253 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000254 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000255 help
256 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257
Russell King788c9702009-04-26 14:21:59 +0100258config ARCH_GEMINI
259 bool "Cortina Systems Gemini"
260 select CPU_FA526
261 select GENERIC_GPIO
262 select ARCH_REQUIRE_GPIOLIB
263 help
264 Support for the Cortina Systems Gemini family SoCs
265
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266config ARCH_EBSA110
267 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000268 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100269 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000270 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 help
272 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000273 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274 Ethernet interface, two PCMCIA sockets, two serial ports and a
275 parallel port.
276
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000277config ARCH_EP93XX
278 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000279 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000280 select ARM_AMBA
281 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100282 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700283 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000284 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700285 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100286 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000287 help
288 This enables support for the Cirrus EP93xx series of CPUs.
289
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290config ARCH_FOOTBRIDGE
291 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000292 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000294 help
295 Support for systems based on the DC21285 companion chip
296 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297
Russell King788c9702009-04-26 14:21:59 +0100298config ARCH_MXC
299 bool "Freescale MXC/iMX-based"
300 select GENERIC_TIME
301 select GENERIC_CLOCKEVENTS
302 select ARCH_MTD_XIP
303 select GENERIC_GPIO
304 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100305 select HAVE_CLK
Russell King788c9702009-04-26 14:21:59 +0100306 help
307 Support for Freescale MXC/iMX-based family of processors
308
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100309config ARCH_STMP3XXX
310 bool "Freescale STMP3xxx"
311 select CPU_ARM926T
312 select HAVE_CLK
313 select COMMON_CLKDEV
314 select ARCH_REQUIRE_GPIOLIB
315 select GENERIC_TIME
316 select GENERIC_CLOCKEVENTS
317 select GENERIC_GPIO
318 select USB_ARCH_HAS_EHCI
319 help
320 Support for systems based on the Freescale 3xxx CPUs.
321
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100322config ARCH_NETX
323 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000324 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100325 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100326 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100327 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000328 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100329 This enables support for systems based on the Hilscher NetX Soc
330
331config ARCH_H720X
332 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000333 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100334 select ISA_DMA_API
335 help
336 This enables support for systems based on the Hynix HMS720x
337
Russell King3b938be2007-05-12 11:25:44 +0100338config ARCH_IOP13XX
339 bool "IOP13xx-based"
340 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000341 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100342 select PLAT_IOP
343 select PCI
344 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100345 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100346 help
347 Support for Intel's IOP13XX (XScale) family of processors.
348
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100349config ARCH_IOP32X
350 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100351 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000352 select CPU_XSCALE
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100353 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100354 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100355 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100356 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000357 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100358 Support for Intel's 80219 and IOP32X (XScale) family of
359 processors.
360
361config ARCH_IOP33X
362 bool "IOP33x-based"
363 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000364 select CPU_XSCALE
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100365 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100366 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100367 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100368 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100369 help
370 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371
Russell King3b938be2007-05-12 11:25:44 +0100372config ARCH_IXP23XX
373 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100374 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000375 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100376 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100377 help
Russell King3b938be2007-05-12 11:25:44 +0100378 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379
380config ARCH_IXP2000
381 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100382 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000383 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100384 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000385 help
386 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387
Russell King3b938be2007-05-12 11:25:44 +0100388config ARCH_IXP4XX
389 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100390 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000391 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100392 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100393 select GENERIC_TIME
394 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100395 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100396 help
Russell King3b938be2007-05-12 11:25:44 +0100397 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100398
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399config ARCH_L7200
400 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000401 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 select FIQ
403 help
404 Say Y here if you intend to run this kernel on a LinkUp Systems
405 L7200 Software Development Board which uses an ARM720T processor.
406 Information on this board can be obtained at:
407
408 <http://www.linkupsys.com/>
409
410 If you have any questions or comments about the Linux kernel port
411 to this board, send e-mail to <sjhill@cotw.com>.
412
Saeed Bishara651c74c2008-06-22 22:45:06 +0200413config ARCH_KIRKWOOD
414 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000415 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200416 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200417 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700418 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200419 select GENERIC_TIME
420 select GENERIC_CLOCKEVENTS
421 select PLAT_ORION
422 help
423 Support for the following Marvell Kirkwood series SoCs:
424 88F6180, 88F6192 and 88F6281.
425
Russell King788c9702009-04-26 14:21:59 +0100426config ARCH_LOKI
427 bool "Marvell Loki (88RC8480)"
428 select CPU_FEROCEON
429 select GENERIC_TIME
430 select GENERIC_CLOCKEVENTS
431 select PLAT_ORION
432 help
433 Support for the Marvell Loki (88RC8480) SoC.
434
435config ARCH_MV78XX0
436 bool "Marvell MV78xx0"
437 select CPU_FEROCEON
438 select PCI
439 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700440 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100441 select GENERIC_TIME
442 select GENERIC_CLOCKEVENTS
443 select PLAT_ORION
444 help
445 Support for the following Marvell MV78xx0 series SoCs:
446 MV781x0, MV782x0.
447
448config ARCH_ORION5X
449 bool "Marvell Orion"
450 depends on MMU
451 select CPU_FEROCEON
452 select PCI
453 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700454 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100455 select GENERIC_TIME
456 select GENERIC_CLOCKEVENTS
457 select PLAT_ORION
458 help
459 Support for the following Marvell Orion 5x series SoCs:
460 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
461 Orion-2 (5281), Orion-1-90 (6183).
462
463config ARCH_MMP
464 bool "Marvell PXA168/910"
465 depends on MMU
466 select GENERIC_GPIO
467 select ARCH_REQUIRE_GPIOLIB
468 select HAVE_CLK
469 select COMMON_CLKDEV
470 select GENERIC_TIME
471 select GENERIC_CLOCKEVENTS
472 select TICK_ONESHOT
473 select PLAT_PXA
474 help
475 Support for Marvell's PXA168/910 processor line.
476
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100477config ARCH_KS8695
478 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000479 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100480 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000481 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100482 help
483 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
484 System-on-Chip devices.
485
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100486config ARCH_NS9XXX
487 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000488 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100489 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100490 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100491 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700492 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100493 help
494 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
495 System.
496
497 <http://www.digi.com/products/microprocessors/index.jsp>
498
Russell King788c9702009-04-26 14:21:59 +0100499config ARCH_W90X900
500 bool "Nuvoton W90X900 CPU"
501 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100502 select ARCH_REQUIRE_GPIOLIB
503 select GENERIC_GPIO
wanzongshun0e4a34b2009-06-10 15:50:44 +0100504 select COMMON_CLKDEV
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200505 help
Russell King788c9702009-04-26 14:21:59 +0100506 Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
507 can login www.mcuos.com or www.nuvoton.com to know more.
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
Ben Dooks89c52ed2009-07-30 23:23:24 +0100520 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800521 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700522 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000523 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700524 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100525 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100526 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000527 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800528 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000529 help
eric miao2c8086a2007-09-11 19:13:17 -0700530 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531
Russell King788c9702009-04-26 14:21:59 +0100532config ARCH_MSM
533 bool "Qualcomm MSM"
534 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800535 select GENERIC_TIME
536 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800537 help
Russell King788c9702009-04-26 14:21:59 +0100538 Support for Qualcomm MSM7K based systems. This runs on the ARM11
539 apps processor of the MSM7K and depends on a shared memory
540 interface to the ARM9 modem processor which runs the baseband stack
541 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800542
Linus Torvalds1da177e2005-04-16 15:20:36 -0700543config ARCH_RPC
544 bool "RiscPC"
545 select ARCH_ACORN
546 select FIQ
547 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100548 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100549 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000550 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000551 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100552 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553 help
554 On the Acorn Risc-PC, Linux can support the internal IDE disk and
555 CD-ROM interface, serial and parallel port, and the floppy drive.
556
557config ARCH_SA1100
558 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000559 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100560 select ISA
Russell King05944d72006-11-30 20:43:51 +0000561 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500562 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100563 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800564 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000565 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100566 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700567 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100568 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700569 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000570 help
571 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572
573config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100574 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800575 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700576 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577 help
578 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
579 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000580 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581
Ben Dooksa08ab632008-10-21 14:06:39 +0100582config ARCH_S3C64XX
583 bool "Samsung S3C64XX"
584 select GENERIC_GPIO
585 select HAVE_CLK
Ben Dooks89c52ed2009-07-30 23:23:24 +0100586 select ARCH_HAS_CPUFREQ
Ben Dooksa08ab632008-10-21 14:06:39 +0100587 help
588 Samsung S3C64XX series based systems
589
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590config ARCH_SHARK
591 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000592 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100593 select ISA
594 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100595 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100596 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000597 help
598 Support for the StrongARM based Digital DNARD machine, also known
599 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600
601config ARCH_LH7A40X
602 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000603 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100604 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
605 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606 help
607 Say Y here for systems based on one of the Sharp LH7A40X
608 System on a Chip processors. These CPUs include an ARM922T
609 core with a wide array of integrated devices for
610 hand-held and low-power applications.
611
Linus Walleijd98aac72009-04-27 10:21:46 +0100612config ARCH_U300
613 bool "ST-Ericsson U300 Series"
614 depends on MMU
615 select CPU_ARM926T
616 select ARM_AMBA
617 select ARM_VIC
618 select GENERIC_TIME
619 select GENERIC_CLOCKEVENTS
620 select HAVE_CLK
621 select COMMON_CLKDEV
622 select GENERIC_GPIO
623 help
624 Support for ST-Ericsson U300 series mobile platforms.
625
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100626config ARCH_DAVINCI
627 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000628 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100629 select GENERIC_TIME
630 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100631 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700632 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700633 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100634 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700635 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700636 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700637 select GENERIC_ALLOCATOR
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100638 help
639 Support for TI's DaVinci platform.
640
Russell King3b938be2007-05-12 11:25:44 +0100641config ARCH_OMAP
642 bool "TI OMAP"
643 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700644 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700645 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100646 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100647 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700648 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100649 help
650 Support for TI's OMAP platform (OMAP1 and OMAP2).
651
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652endchoice
653
654source "arch/arm/mach-clps711x/Kconfig"
655
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000656source "arch/arm/mach-ep93xx/Kconfig"
657
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658source "arch/arm/mach-footbridge/Kconfig"
659
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200660source "arch/arm/mach-gemini/Kconfig"
661
Linus Torvalds1da177e2005-04-16 15:20:36 -0700662source "arch/arm/mach-integrator/Kconfig"
663
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100664source "arch/arm/mach-iop32x/Kconfig"
665
666source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667
Dan Williams285f5fa2006-12-07 02:59:39 +0100668source "arch/arm/mach-iop13xx/Kconfig"
669
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670source "arch/arm/mach-ixp4xx/Kconfig"
671
672source "arch/arm/mach-ixp2000/Kconfig"
673
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100674source "arch/arm/mach-ixp23xx/Kconfig"
675
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200676source "arch/arm/mach-loki/Kconfig"
677
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200678source "arch/arm/mach-mv78xx0/Kconfig"
679
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680source "arch/arm/mach-pxa/Kconfig"
Eric Miaobd5ce432009-01-20 12:06:01 +0800681source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682
Eric Miao49cbe782009-01-20 14:15:18 +0800683source "arch/arm/mach-mmp/Kconfig"
684
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685source "arch/arm/mach-sa1100/Kconfig"
686
Tony Lindgrend48af152005-07-10 19:58:17 +0100687source "arch/arm/plat-omap/Kconfig"
688
689source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690
Tony Lindgren1dbae812005-11-10 14:26:51 +0000691source "arch/arm/mach-omap2/Kconfig"
692
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400693source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400694
Saeed Bishara651c74c2008-06-22 22:45:06 +0200695source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696
Ben Dooksa21765a2007-02-11 18:31:01 +0100697source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100698source "arch/arm/plat-s3c64xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100699source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100700
701if ARCH_S3C2410
702source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100704source "arch/arm/mach-s3c2412/Kconfig"
705source "arch/arm/mach-s3c2440/Kconfig"
706source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100707source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100708endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709
Ben Dooksa08ab632008-10-21 14:06:39 +0100710if ARCH_S3C64XX
711source "arch/arm/mach-s3c6400/Kconfig"
712source "arch/arm/mach-s3c6410/Kconfig"
713endif
714
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100715source "arch/arm/plat-stmp3xxx/Kconfig"
716
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717source "arch/arm/mach-lh7a40x/Kconfig"
718
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719source "arch/arm/mach-h720x/Kconfig"
720
721source "arch/arm/mach-versatile/Kconfig"
722
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100723source "arch/arm/mach-aaec2000/Kconfig"
724
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000725source "arch/arm/mach-realview/Kconfig"
726
Andrew Victor9d041262007-02-05 11:42:07 +0100727source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000728
Quinn Jensen52c543f2007-07-09 22:06:53 +0100729source "arch/arm/plat-mxc/Kconfig"
730
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100731source "arch/arm/mach-netx/Kconfig"
732
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100733source "arch/arm/mach-ns9xxx/Kconfig"
734
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100735source "arch/arm/mach-davinci/Kconfig"
736
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100737source "arch/arm/mach-ks8695/Kconfig"
738
Brian Swetland9e73c84c2007-11-26 04:12:13 -0800739source "arch/arm/mach-msm/Kconfig"
740
Linus Walleijd98aac72009-04-27 10:21:46 +0100741source "arch/arm/mach-u300/Kconfig"
742
wanzongshun7ec80dd2008-12-03 03:55:38 +0100743source "arch/arm/mach-w90x900/Kconfig"
744
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745# Definitions to make life easier
746config ARCH_ACORN
747 bool
748
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100749config PLAT_IOP
750 bool
751
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400752config PLAT_ORION
753 bool
754
Eric Miaobd5ce432009-01-20 12:06:01 +0800755config PLAT_PXA
756 bool
757
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758source arch/arm/mm/Kconfig
759
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100760config IWMMXT
761 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800762 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
763 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100764 help
765 Enable support for iWMMXt context switching at run time if
766 running on a CPU that supports it.
767
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
769config XSCALE_PMU
770 bool
771 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
772 default y
773
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100774if !MMU
775source "arch/arm/Kconfig-nommu"
776endif
777
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100778config ARM_ERRATA_411920
779 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
780 depends on CPU_V6 && !SMP
781 help
782 Invalidation of the Instruction Cache operation can
783 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
784 It does not affect the MPCore. This option enables the ARM Ltd.
785 recommended workaround.
786
Catalin Marinas7ce236fc2009-04-30 17:06:09 +0100787config ARM_ERRATA_430973
788 bool "ARM errata: Stale prediction on replaced interworking branch"
789 depends on CPU_V7
790 help
791 This option enables the workaround for the 430973 Cortex-A8
792 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
793 interworking branch is replaced with another code sequence at the
794 same virtual address, whether due to self-modifying code or virtual
795 to physical address re-mapping, Cortex-A8 does not recover from the
796 stale interworking branch prediction. This results in Cortex-A8
797 executing the new code sequence in the incorrect ARM or Thumb state.
798 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
799 and also flushes the branch target cache at every context switch.
800 Note that setting specific bits in the ACTLR register may not be
801 available in non-secure mode.
802
Catalin Marinas855c5512009-04-30 17:06:15 +0100803config ARM_ERRATA_458693
804 bool "ARM errata: Processor deadlock when a false hazard is created"
805 depends on CPU_V7
806 help
807 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
808 erratum. For very specific sequences of memory operations, it is
809 possible for a hazard condition intended for a cache line to instead
810 be incorrectly associated with a different cache line. This false
811 hazard might then cause a processor deadlock. The workaround enables
812 the L1 caching of the NEON accesses and disables the PLD instruction
813 in the ACTLR register. Note that setting specific bits in the ACTLR
814 register may not be available in non-secure mode.
815
Catalin Marinas0516e462009-04-30 17:06:20 +0100816config ARM_ERRATA_460075
817 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
818 depends on CPU_V7
819 help
820 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
821 erratum. Any asynchronous access to the L2 cache may encounter a
822 situation in which recent store transactions to the L2 cache are lost
823 and overwritten with stale memory contents from external memory. The
824 workaround disables the write-allocate mode for the L2 cache via the
825 ACTLR register. Note that setting specific bits in the ACTLR register
826 may not be available in non-secure mode.
827
Linus Torvalds1da177e2005-04-16 15:20:36 -0700828endmenu
829
830source "arch/arm/common/Kconfig"
831
832config FORCE_MAX_ZONEORDER
833 int
834 depends on SA1111
835 default "9"
836
837menu "Bus support"
838
839config ARM_AMBA
840 bool
841
842config ISA
843 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844 help
845 Find out whether you have ISA slots on your motherboard. ISA is the
846 name of a bus system, i.e. the way the CPU talks to the other stuff
847 inside your box. Other bus systems are PCI, EISA, MicroChannel
848 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
849 newer boards don't support it. If you have ISA, say Y, otherwise N.
850
Russell King065909b2006-01-04 15:44:16 +0000851# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852config ISA_DMA
853 bool
Russell King065909b2006-01-04 15:44:16 +0000854 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855
Russell King065909b2006-01-04 15:44:16 +0000856# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100857config ISA_DMA_API
858 bool
Al Viro5cae8412005-05-04 05:39:22 +0100859
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100861 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862 help
863 Find out whether you have a PCI motherboard. PCI is the name of a
864 bus system, i.e. the way the CPU talks to the other stuff inside
865 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
866 VESA. If you have PCI, say Y, otherwise N.
867
Matthew Wilcox36e23592007-07-10 10:54:40 -0600868config PCI_SYSCALL
869 def_bool PCI
870
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871# Select the host bridge type
872config PCI_HOST_VIA82C505
873 bool
874 depends on PCI && ARCH_SHARK
875 default y
876
Mike Rapoporta0113a92007-11-25 08:55:34 +0100877config PCI_HOST_ITE8152
878 bool
879 depends on PCI && MACH_ARMCORE
880 default y
881 select DMABOUNCE
882
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883source "drivers/pci/Kconfig"
884
885source "drivers/pcmcia/Kconfig"
886
887endmenu
888
889menu "Kernel Features"
890
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100891source "kernel/time/Kconfig"
892
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893config SMP
894 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +0100895 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
896 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
Russell Kingbc282482009-05-17 18:58:34 +0100897 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +0200898 select USE_GENERIC_SMP_HELPERS
Santosh Shilimkar934f8be72009-04-28 20:52:05 +0530899 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900 help
901 This enables support for systems with more than one CPU. If you have
902 a system with only one CPU, like most personal computers, say N. If
903 you have a system with more than one CPU, say Y.
904
905 If you say N here, the kernel will run on single and multiprocessor
906 machines, but will use only one CPU of a multiprocessor machine. If
907 you say Y here, the kernel will run on many, but not all, single
908 processor machines. On a single processor machine, the kernel will
909 run faster if you say N here.
910
Adrian Bunk03502fa2008-02-03 15:50:21 +0200911 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
913 <http://www.linuxdoc.org/docs.html#howto>.
914
915 If you don't know what to do here, say N.
916
Russell Kinga8cbcd92009-05-16 11:51:14 +0100917config HAVE_ARM_SCU
918 bool
919 depends on SMP
920 help
921 This option enables support for the ARM system coherency unit
922
Russell Kingf32f4ce2009-05-16 12:14:21 +0100923config HAVE_ARM_TWD
924 bool
925 depends on SMP
926 help
927 This options enables support for the ARM timer and watchdog unit
928
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100929choice
930 prompt "Memory split"
931 default VMSPLIT_3G
932 help
933 Select the desired split between kernel and user memory.
934
935 If you are not absolutely sure what you are doing, leave this
936 option alone!
937
938 config VMSPLIT_3G
939 bool "3G/1G user/kernel split"
940 config VMSPLIT_2G
941 bool "2G/2G user/kernel split"
942 config VMSPLIT_1G
943 bool "1G/3G user/kernel split"
944endchoice
945
946config PAGE_OFFSET
947 hex
948 default 0x40000000 if VMSPLIT_1G
949 default 0x80000000 if VMSPLIT_2G
950 default 0xC0000000
951
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952config NR_CPUS
953 int "Maximum number of CPUs (2-32)"
954 range 2 32
955 depends on SMP
956 default "4"
957
Russell Kinga054a812005-11-02 22:24:33 +0000958config HOTPLUG_CPU
959 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
960 depends on SMP && HOTPLUG && EXPERIMENTAL
961 help
962 Say Y here to experiment with turning CPUs off and on. CPUs
963 can be controlled through /sys/devices/system/cpu.
964
Russell King37ee16a2005-11-08 19:08:05 +0000965config LOCAL_TIMERS
966 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +0100967 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
968 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
Russell King37ee16a2005-11-08 19:08:05 +0000969 default y
Santosh Shilimkar934f8be72009-04-28 20:52:05 +0530970 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4)
Russell King37ee16a2005-11-08 19:08:05 +0000971 help
972 Enable support for local timers on SMP platforms, rather then the
973 legacy IPI broadcast method. Local timers allows the system
974 accounting to be spread across the timer interval, preventing a
975 "thundering herd" at every timer tick.
976
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977config PREEMPT
978 bool "Preemptible Kernel (EXPERIMENTAL)"
979 depends on EXPERIMENTAL
980 help
981 This option reduces the latency of the kernel when reacting to
982 real-time or interactive events by allowing a low priority process to
983 be preempted even if it is in kernel mode executing a system call.
984 This allows applications to run more reliably even when the system is
985 under load.
986
987 Say Y here if you are building a kernel for a desktop, embedded
988 or real-time system. Say N if you are unsure.
989
Russell Kingf8065812006-03-02 22:41:59 +0000990config HZ
991 int
992 default 128 if ARCH_L7200
993 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000994 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100995 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000996 default 100
997
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000998config AEABI
999 bool "Use the ARM EABI to compile the kernel"
1000 help
1001 This option allows for the kernel to be compiled using the latest
1002 ARM ABI (aka EABI). This is only useful if you are using a user
1003 space environment that is also compiled with EABI.
1004
1005 Since there are major incompatibilities between the legacy ABI and
1006 EABI, especially with regard to structure member alignment, this
1007 option also changes the kernel syscall calling convention to
1008 disambiguate both ABIs and allow for backward compatibility support
1009 (selected with CONFIG_OABI_COMPAT).
1010
1011 To use this you need GCC version 4.0.0 or later.
1012
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001013config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001014 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001015 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001016 default y
1017 help
1018 This option preserves the old syscall interface along with the
1019 new (ARM EABI) one. It also provides a compatibility layer to
1020 intercept syscalls that have structure arguments which layout
1021 in memory differs between the legacy ABI and the new ARM EABI
1022 (only for non "thumb" binaries). This option adds a tiny
1023 overhead to all syscalls and produces a slightly larger kernel.
1024 If you know you'll be using only pure EABI user space then you
1025 can say N here. If this option is not selected and you attempt
1026 to execute a legacy ABI binary then the result will be
1027 UNPREDICTABLE (in fact it can be predicted that it won't work
1028 at all). If in doubt say Y.
1029
Mel Gormaneb335752009-05-13 17:34:48 +01001030config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001031 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001032
Russell King07a2f732008-10-01 21:39:58 +01001033# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001034config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001036
Russell King05944d72006-11-30 20:43:51 +00001037config ARCH_SPARSEMEM_ENABLE
1038 bool
1039
Russell King07a2f732008-10-01 21:39:58 +01001040config ARCH_SPARSEMEM_DEFAULT
1041 def_bool ARCH_SPARSEMEM_ENABLE
1042
Russell King05944d72006-11-30 20:43:51 +00001043config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001044 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001045
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001046config NODES_SHIFT
1047 int
1048 default "4" if ARCH_LH7A40X
1049 default "2"
1050 depends on NEED_MULTIPLE_NODES
1051
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001052config HIGHMEM
1053 bool "High Memory Support (EXPERIMENTAL)"
1054 depends on MMU && EXPERIMENTAL
1055 help
1056 The address space of ARM processors is only 4 Gigabytes large
1057 and it has to accommodate user address space, kernel address
1058 space as well as some memory mapped IO. That means that, if you
1059 have a large amount of physical memory and/or IO, not all of the
1060 memory can be "permanently mapped" by the kernel. The physical
1061 memory that is not permanently mapped is called "high memory".
1062
1063 Depending on the selected kernel/user memory split, minimum
1064 vmalloc space and actual amount of RAM, you may not need this
1065 option which should result in a slightly faster kernel.
1066
1067 If unsure, say n.
1068
Dave Hansen3f22ab22005-06-23 00:07:43 -07001069source "mm/Kconfig"
1070
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071config LEDS
1072 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001073 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001074 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1076 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001077 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001078 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042fb2009-05-30 13:56:13 +01001079 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080 help
1081 If you say Y here, the LEDs on your machine will be used
1082 to provide useful information about your current system status.
1083
1084 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1085 be able to select which LEDs are active using the options below. If
1086 you are compiling a kernel for the EBSA-110 or the LART however, the
1087 red LED will simply flash regularly to indicate that the system is
1088 still functional. It is safe to say Y here if you have a CATS
1089 system, but the driver will do nothing.
1090
1091config LEDS_TIMER
1092 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001093 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1094 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001096 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097 default y if ARCH_EBSA110
1098 help
1099 If you say Y here, one of the system LEDs (the green one on the
1100 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1101 will flash regularly to indicate that the system is still
1102 operational. This is mainly useful to kernel hackers who are
1103 debugging unstable kernels.
1104
1105 The LART uses the same LED for both Timer LED and CPU usage LED
1106 functions. You may choose to use both, but the Timer LED function
1107 will overrule the CPU usage LED.
1108
1109config LEDS_CPU
1110 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001111 !ARCH_OMAP) \
1112 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1113 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001114 depends on LEDS
1115 help
1116 If you say Y here, the red LED will be used to give a good real
1117 time indication of CPU usage, by lighting whenever the idle task
1118 is not currently executing.
1119
1120 The LART uses the same LED for both Timer LED and CPU usage LED
1121 functions. You may choose to use both, but the Timer LED function
1122 will overrule the CPU usage LED.
1123
1124config ALIGNMENT_TRAP
1125 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001126 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001127 default y if !ARCH_EBSA110
1128 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001129 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001130 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1131 address divisible by 4. On 32-bit ARM processors, these non-aligned
1132 fetch/store instructions will be emulated in software if you say
1133 here, which has a severe performance impact. This is necessary for
1134 correct operation of some network protocols. With an IP-only
1135 configuration it is safe to say N, otherwise say Y.
1136
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001137config UACCESS_WITH_MEMCPY
1138 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1139 depends on MMU && EXPERIMENTAL
1140 default y if CPU_FEROCEON
1141 help
1142 Implement faster copy_to_user and clear_user methods for CPU
1143 cores where a 8-word STM instruction give significantly higher
1144 memory write throughput than a sequence of individual 32bit stores.
1145
1146 A possible side effect is a slight increase in scheduling latency
1147 between threads sharing the same address space if they invoke
1148 such copy operations with large buffers.
1149
1150 However, if the CPU data cache is using a write-allocate mode,
1151 this option is unlikely to provide any performance gain.
1152
Linus Torvalds1da177e2005-04-16 15:20:36 -07001153endmenu
1154
1155menu "Boot options"
1156
1157# Compressed boot loader in ROM. Yes, we really want to ask about
1158# TEXT and BSS so we preserve their values in the config files.
1159config ZBOOT_ROM_TEXT
1160 hex "Compressed ROM boot loader base address"
1161 default "0"
1162 help
1163 The physical address at which the ROM-able zImage is to be
1164 placed in the target. Platforms which normally make use of
1165 ROM-able zImage formats normally set this to a suitable
1166 value in their defconfig file.
1167
1168 If ZBOOT_ROM is not enabled, this has no effect.
1169
1170config ZBOOT_ROM_BSS
1171 hex "Compressed ROM boot loader BSS address"
1172 default "0"
1173 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001174 The base address of an area of read/write memory in the target
1175 for the ROM-able zImage which must be available while the
1176 decompressor is running. It must be large enough to hold the
1177 entire decompressed kernel plus an additional 128 KiB.
1178 Platforms which normally make use of ROM-able zImage formats
1179 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001180
1181 If ZBOOT_ROM is not enabled, this has no effect.
1182
1183config ZBOOT_ROM
1184 bool "Compressed boot loader in ROM/flash"
1185 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1186 help
1187 Say Y here if you intend to execute your compressed kernel image
1188 (zImage) directly from ROM or flash. If unsure, say N.
1189
1190config CMDLINE
1191 string "Default kernel command string"
1192 default ""
1193 help
1194 On some architectures (EBSA110 and CATS), there is currently no way
1195 for the boot loader to pass arguments to the kernel. For these
1196 architectures, you should supply some command-line options at build
1197 time by entering them here. As a minimum, you should specify the
1198 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1199
1200config XIP_KERNEL
1201 bool "Kernel Execute-In-Place from ROM"
1202 depends on !ZBOOT_ROM
1203 help
1204 Execute-In-Place allows the kernel to run from non-volatile storage
1205 directly addressable by the CPU, such as NOR flash. This saves RAM
1206 space since the text section of the kernel is not loaded from flash
1207 to RAM. Read-write sections, such as the data section and stack,
1208 are still copied to RAM. The XIP kernel is not compressed since
1209 it has to run directly from flash, so it will take more space to
1210 store it. The flash address used to link the kernel object files,
1211 and for storing it, is configuration dependent. Therefore, if you
1212 say Y here, you must know the proper physical address where to
1213 store the kernel image depending on your own flash memory usage.
1214
1215 Also note that the make target becomes "make xipImage" rather than
1216 "make zImage" or "make Image". The final kernel binary to put in
1217 ROM memory will be arch/arm/boot/xipImage.
1218
1219 If unsure, say N.
1220
1221config XIP_PHYS_ADDR
1222 hex "XIP Kernel Physical Location"
1223 depends on XIP_KERNEL
1224 default "0x00080000"
1225 help
1226 This is the physical address in your flash memory the kernel will
1227 be linked for and stored to. This address is dependent on your
1228 own flash usage.
1229
Richard Purdiec587e4a2007-02-06 21:29:00 +01001230config KEXEC
1231 bool "Kexec system call (EXPERIMENTAL)"
1232 depends on EXPERIMENTAL
1233 help
1234 kexec is a system call that implements the ability to shutdown your
1235 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001236 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001237 you can start any kernel with it, not just Linux.
1238
1239 It is an ongoing process to be certain the hardware in a machine
1240 is properly shutdown, so do not be surprised if this code does not
1241 initially work for you. It may help to enable device hotplugging
1242 support.
1243
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001244config ATAGS_PROC
1245 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001246 depends on KEXEC
1247 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001248 help
1249 Should the atags used to boot the kernel be exported in an "atags"
1250 file in procfs. Useful with kexec.
1251
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252endmenu
1253
Russell Kingac9d7ef2008-08-18 17:26:00 +01001254menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001255
Ben Dooks89c52ed2009-07-30 23:23:24 +01001256if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001257
1258source "drivers/cpufreq/Kconfig"
1259
1260config CPU_FREQ_SA1100
1261 bool
Dmitry Artamonow7bc35b52009-02-20 10:16:01 +01001262 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001263 default y
1264
1265config CPU_FREQ_SA1110
1266 bool
1267 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1268 default y
1269
1270config CPU_FREQ_INTEGRATOR
1271 tristate "CPUfreq driver for ARM Integrator CPUs"
1272 depends on ARCH_INTEGRATOR && CPU_FREQ
1273 default y
1274 help
1275 This enables the CPUfreq driver for ARM Integrator CPUs.
1276
1277 For details, take a look at <file:Documentation/cpu-freq>.
1278
1279 If in doubt, say Y.
1280
Russell King9e2697f2007-12-14 13:30:14 +00001281config CPU_FREQ_PXA
1282 bool
1283 depends on CPU_FREQ && ARCH_PXA && PXA25x
1284 default y
1285 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1286
Mark Brownb3748dd2009-06-15 11:23:20 +01001287config CPU_FREQ_S3C64XX
1288 bool "CPUfreq support for Samsung S3C64XX CPUs"
1289 depends on CPU_FREQ && CPU_S3C6410
1290
Linus Torvalds1da177e2005-04-16 15:20:36 -07001291endif
1292
Russell Kingac9d7ef2008-08-18 17:26:00 +01001293source "drivers/cpuidle/Kconfig"
1294
1295endmenu
1296
Linus Torvalds1da177e2005-04-16 15:20:36 -07001297menu "Floating point emulation"
1298
1299comment "At least one emulation must be selected"
1300
1301config FPE_NWFPE
1302 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001303 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001304 ---help---
1305 Say Y to include the NWFPE floating point emulator in the kernel.
1306 This is necessary to run most binaries. Linux does not currently
1307 support floating point hardware so you need to say Y here even if
1308 your machine has an FPA or floating point co-processor podule.
1309
1310 You may say N here if you are going to load the Acorn FPEmulator
1311 early in the bootup.
1312
1313config FPE_NWFPE_XP
1314 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001315 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316 help
1317 Say Y to include 80-bit support in the kernel floating-point
1318 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1319 Note that gcc does not generate 80-bit operations by default,
1320 so in most cases this option only enlarges the size of the
1321 floating point emulator without any good reason.
1322
1323 You almost surely want to say N here.
1324
1325config FPE_FASTFPE
1326 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001327 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001328 ---help---
1329 Say Y here to include the FAST floating point emulator in the kernel.
1330 This is an experimental much faster emulator which now also has full
1331 precision for the mantissa. It does not support any exceptions.
1332 It is very simple, and approximately 3-6 times faster than NWFPE.
1333
1334 It should be sufficient for most programs. It may be not suitable
1335 for scientific calculations, but you have to check this for yourself.
1336 If you do not feel you need a faster FP emulation you should better
1337 choose NWFPE.
1338
1339config VFP
1340 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001341 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001342 help
1343 Say Y to include VFP support code in the kernel. This is needed
1344 if your hardware includes a VFP unit.
1345
1346 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1347 release notes and additional status information.
1348
1349 Say N if your target does not have VFP hardware.
1350
Catalin Marinas25ebee02007-09-25 15:22:24 +01001351config VFPv3
1352 bool
1353 depends on VFP
1354 default y if CPU_V7
1355
Catalin Marinasb5872db2008-01-10 19:16:17 +01001356config NEON
1357 bool "Advanced SIMD (NEON) Extension support"
1358 depends on VFPv3 && CPU_V7
1359 help
1360 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1361 Extension.
1362
Linus Torvalds1da177e2005-04-16 15:20:36 -07001363endmenu
1364
1365menu "Userspace binary formats"
1366
1367source "fs/Kconfig.binfmt"
1368
1369config ARTHUR
1370 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001371 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372 help
1373 Say Y here to include the kernel code necessary if you want to run
1374 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1375 experimental; if this sounds frightening, say N and sleep in peace.
1376 You can also say M here to compile this support as a module (which
1377 will be called arthur).
1378
1379endmenu
1380
1381menu "Power management options"
1382
Russell Kingeceab4a2005-11-15 11:31:41 +00001383source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384
Johannes Bergf4cb5702007-12-08 02:14:00 +01001385config ARCH_SUSPEND_POSSIBLE
1386 def_bool y
1387
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388endmenu
1389
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001390source "net/Kconfig"
1391
Linus Torvalds1da177e2005-04-16 15:20:36 -07001392menu "Device Drivers"
1393
1394source "drivers/base/Kconfig"
1395
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001396source "drivers/connector/Kconfig"
1397
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001398if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399source "drivers/mtd/Kconfig"
1400endif
1401
1402source "drivers/parport/Kconfig"
1403
1404source "drivers/pnp/Kconfig"
1405
1406source "drivers/block/Kconfig"
1407
Russell King58273e52007-10-12 22:24:09 +01001408# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1409
1410source "drivers/misc/Kconfig"
1411
Linus Torvalds1da177e2005-04-16 15:20:36 -07001412source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413
1414source "drivers/scsi/Kconfig"
1415
Martin Michlmayreb370f02006-11-17 00:14:35 +01001416source "drivers/ata/Kconfig"
1417
Linus Torvalds1da177e2005-04-16 15:20:36 -07001418source "drivers/md/Kconfig"
1419
1420source "drivers/message/fusion/Kconfig"
1421
1422source "drivers/ieee1394/Kconfig"
1423
1424source "drivers/message/i2o/Kconfig"
1425
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001426source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427
1428source "drivers/isdn/Kconfig"
1429
1430# input before char - char/joystick depends on it. As does USB.
1431
1432source "drivers/input/Kconfig"
1433
1434source "drivers/char/Kconfig"
1435
1436source "drivers/i2c/Kconfig"
1437
David Brownell8ae12a02006-01-08 13:34:19 -08001438source "drivers/spi/Kconfig"
1439
David Brownella9c5fff2008-02-04 22:28:17 -08001440source "drivers/gpio/Kconfig"
1441
Alessandro Zummo04916c02006-03-10 22:30:01 +00001442source "drivers/w1/Kconfig"
1443
Russell King58273e52007-10-12 22:24:09 +01001444source "drivers/power/Kconfig"
1445
Jean Delvaread2f931d2005-07-02 18:15:49 +02001446source "drivers/hwmon/Kconfig"
1447
Russell Kingac9d7ef2008-08-18 17:26:00 +01001448source "drivers/thermal/Kconfig"
1449
Russell King70dfa3f2007-11-07 14:13:35 +00001450source "drivers/watchdog/Kconfig"
1451
Russell King58273e52007-10-12 22:24:09 +01001452source "drivers/ssb/Kconfig"
1453
Linus Torvalds1da177e2005-04-16 15:20:36 -07001454#source "drivers/l3/Kconfig"
1455
Russell Kinga4e137a2005-08-18 10:06:59 +01001456source "drivers/mfd/Kconfig"
1457
Linus Torvalds1da177e2005-04-16 15:20:36 -07001458source "drivers/media/Kconfig"
1459
1460source "drivers/video/Kconfig"
1461
1462source "sound/Kconfig"
1463
Sascha Hauerc2dade512006-12-12 10:32:42 +01001464source "drivers/hid/Kconfig"
1465
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466source "drivers/usb/Kconfig"
1467
Greg Kroah-Hartman2f86c3e2008-09-17 16:34:11 +01001468source "drivers/uwb/Kconfig"
1469
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470source "drivers/mmc/Kconfig"
1471
Russell Kingac9d7ef2008-08-18 17:26:00 +01001472source "drivers/memstick/Kconfig"
1473
1474source "drivers/accessibility/Kconfig"
1475
Russell King58273e52007-10-12 22:24:09 +01001476source "drivers/leds/Kconfig"
1477
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001478source "drivers/rtc/Kconfig"
1479
Dan Williams58168152007-01-02 11:10:43 -07001480source "drivers/dma/Kconfig"
1481
Dan Williamsabf07b12008-01-18 23:26:10 +01001482source "drivers/dca/Kconfig"
1483
Russell Kingac9d7ef2008-08-18 17:26:00 +01001484source "drivers/auxdisplay/Kconfig"
1485
Liam Girdwoodba7e4762008-04-30 17:13:42 +01001486source "drivers/regulator/Kconfig"
1487
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001488source "drivers/uio/Kconfig"
1489
F. Duncan M. Haldane6e38a2b2008-11-07 18:17:51 -05001490source "drivers/staging/Kconfig"
1491
Linus Torvalds1da177e2005-04-16 15:20:36 -07001492endmenu
1493
1494source "fs/Kconfig"
1495
Linus Torvalds1da177e2005-04-16 15:20:36 -07001496source "arch/arm/Kconfig.debug"
1497
1498source "security/Kconfig"
1499
1500source "crypto/Kconfig"
1501
1502source "lib/Kconfig"