blob: c6d2b19887572bc42b5beee7f9f0b8fb29d04228 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config ARM
9 bool
10 default y
David Woodhousee17c6d52008-06-17 12:19:34 +010011 select HAVE_AOUT
Adrian Bunk2064c942008-04-28 23:44:43 +020012 select HAVE_IDE
Alessandro Zummo12b824f2006-03-27 01:16:35 -080013 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000014 select SYS_SUPPORTS_APM_EMULATION
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050015 select HAVE_OPROFILE
Jason Wessel5cbad0e2008-02-20 13:33:40 -060016 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050017 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080018 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040019 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040020 select HAVE_GENERIC_DMA_COHERENT
Linus Torvalds1da177e2005-04-16 15:20:36 -070021 help
22 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000023 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000025 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 Europe. There is an ARM Linux project with a web page at
27 <http://www.arm.linux.org.uk/>.
28
Russell King1a189b92008-04-13 21:41:55 +010029config HAVE_PWM
30 bool
31
Ralf Baechle75e71532007-02-09 17:08:58 +000032config SYS_SUPPORTS_APM_EMULATION
33 bool
34
David Brownell0a938b92007-03-05 00:30:18 -080035config GENERIC_GPIO
36 bool
David Brownell0a938b92007-03-05 00:30:18 -080037
Kevin Hilman746140c2006-09-22 00:16:30 +010038config GENERIC_TIME
39 bool
Kevin Hilman746140c2006-09-22 00:16:30 +010040
Kevin Hilman0567a0c2007-03-13 20:29:24 +010041config GENERIC_CLOCKEVENTS
42 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010043
Catalin Marinasa8655e82008-02-04 17:30:57 +010044config GENERIC_CLOCKEVENTS_BROADCAST
45 bool
46 depends on GENERIC_CLOCKEVENTS
47 default y if SMP && !LOCAL_TIMERS
48
Linus Torvalds1da177e2005-04-16 15:20:36 -070049config MMU
50 bool
51 default y
52
Al Viro5ea81762007-02-11 15:41:31 +000053config NO_IOPORT
54 bool
Al Viro5ea81762007-02-11 15:41:31 +000055
Linus Torvalds1da177e2005-04-16 15:20:36 -070056config EISA
57 bool
58 ---help---
59 The Extended Industry Standard Architecture (EISA) bus was
60 developed as an open alternative to the IBM MicroChannel bus.
61
62 The EISA bus provided some of the features of the IBM MicroChannel
63 bus while maintaining backward compatibility with cards made for
64 the older ISA bus. The EISA bus saw limited use between 1988 and
65 1995 when it was made obsolete by the PCI bus.
66
67 Say Y here if you are building a kernel for an EISA-based machine.
68
69 Otherwise, say N.
70
71config SBUS
72 bool
73
74config MCA
75 bool
76 help
77 MicroChannel Architecture is found in some IBM PS/2 machines and
78 laptops. It is a bus system similar to PCI or ISA. See
79 <file:Documentation/mca.txt> (and especially the web page given
80 there) before attempting to build an MCA bus kernel.
81
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010082config GENERIC_HARDIRQS
83 bool
84 default y
85
Russell Kingf16fb1e2007-04-28 09:59:37 +010086config STACKTRACE_SUPPORT
87 bool
88 default y
89
Nicolas Pitref76e9152008-04-24 01:31:46 -040090config HAVE_LATENCYTOP_SUPPORT
91 bool
92 depends on !SMP
93 default y
94
Russell Kingf16fb1e2007-04-28 09:59:37 +010095config LOCKDEP_SUPPORT
96 bool
97 default y
98
Russell King7ad1bcb2006-08-27 12:07:02 +010099config TRACE_IRQFLAGS_SUPPORT
100 bool
101 default y
102
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100103config HARDIRQS_SW_RESEND
104 bool
105 default y
106
107config GENERIC_IRQ_PROBE
108 bool
109 default y
110
Nick Piggin95c354f2008-01-30 13:31:20 +0100111config GENERIC_LOCKBREAK
112 bool
113 default y
114 depends on SMP && PREEMPT
115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116config RWSEM_GENERIC_SPINLOCK
117 bool
118 default y
119
120config RWSEM_XCHGADD_ALGORITHM
121 bool
122
David Howellsf0d1b0b2006-12-08 02:37:49 -0800123config ARCH_HAS_ILOG2_U32
124 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800125
126config ARCH_HAS_ILOG2_U64
127 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800128
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800129config GENERIC_HWEIGHT
130 bool
131 default y
132
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133config GENERIC_CALIBRATE_DELAY
134 bool
135 default y
136
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100137config ARCH_MAY_HAVE_PC_FDC
138 bool
139
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800140config ZONE_DMA
141 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800142
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143config GENERIC_ISA_DMA
144 bool
145
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146config FIQ
147 bool
148
Al Viro034d2f52005-12-19 16:27:59 -0500149config ARCH_MTD_XIP
150 bool
151
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100152config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100153 def_bool y
154
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500155if OPROFILE
156
157config OPROFILE_ARMV6
158 def_bool y
159 depends on CPU_V6 && !SMP
160 select OPROFILE_ARM11_CORE
161
162config OPROFILE_MPCORE
163 def_bool y
164 depends on CPU_V6 && SMP
165 select OPROFILE_ARM11_CORE
166
167config OPROFILE_ARM11_CORE
168 bool
169
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100170config OPROFILE_ARMV7
171 def_bool y
172 depends on CPU_V7 && !SMP
173 bool
174
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500175endif
176
Hyok S. Choic760fc12006-03-27 15:18:50 +0100177config VECTORS_BASE
178 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900179 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100180 default DRAM_BASE if REMAP_VECTORS_TO_RAM
181 default 0x00000000
182 help
183 The base address of exception vectors.
184
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185source "init/Kconfig"
186
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700187source "kernel/Kconfig.freezer"
188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189menu "System Type"
190
191choice
192 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000193 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100195config ARCH_AAEC2000
196 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000197 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100198 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700199 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100200 help
201 This enables support for systems based on the Agilent AAEC-2000
202
203config ARCH_INTEGRATOR
204 bool "ARM Ltd. Integrator family"
205 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700206 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000207 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100208 select ICST525
209 help
210 Support for ARM's Integrator platform.
211
212config ARCH_REALVIEW
213 bool "ARM Ltd. RealView family"
214 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700215 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000216 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100217 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100218 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100219 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100220 help
221 This enables support for ARM Ltd RealView boards.
222
223config ARCH_VERSATILE
224 bool "ARM Ltd. Versatile family"
225 select ARM_AMBA
226 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700227 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000228 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100229 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100230 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100231 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 help
233 This enables support for ARM Ltd Versatile board.
234
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100235config ARCH_AT91
236 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800237 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100238 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700239 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100240 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100241 This enables support for systems based on the Atmel AT91RM9200,
242 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100243
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100245 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000246 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000247 help
248 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249
Russell King788c9702009-04-26 14:21:59 +0100250config ARCH_GEMINI
251 bool "Cortina Systems Gemini"
252 select CPU_FA526
253 select GENERIC_GPIO
254 select ARCH_REQUIRE_GPIOLIB
255 help
256 Support for the Cortina Systems Gemini family SoCs
257
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258config ARCH_EBSA110
259 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000260 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100261 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000262 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 help
264 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000265 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266 Ethernet interface, two PCMCIA sockets, two serial ports and a
267 parallel port.
268
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000269config ARCH_EP93XX
270 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000271 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000272 select ARM_AMBA
273 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100274 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700275 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000276 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700277 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100278 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000279 help
280 This enables support for the Cirrus EP93xx series of CPUs.
281
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282config ARCH_FOOTBRIDGE
283 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000284 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000286 help
287 Support for systems based on the DC21285 companion chip
288 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289
Russell King788c9702009-04-26 14:21:59 +0100290config ARCH_MXC
291 bool "Freescale MXC/iMX-based"
292 select GENERIC_TIME
293 select GENERIC_CLOCKEVENTS
294 select ARCH_MTD_XIP
295 select GENERIC_GPIO
296 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100297 select HAVE_CLK
Russell King788c9702009-04-26 14:21:59 +0100298 help
299 Support for Freescale MXC/iMX-based family of processors
300
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100301config ARCH_STMP3XXX
302 bool "Freescale STMP3xxx"
303 select CPU_ARM926T
304 select HAVE_CLK
305 select COMMON_CLKDEV
306 select ARCH_REQUIRE_GPIOLIB
307 select GENERIC_TIME
308 select GENERIC_CLOCKEVENTS
309 select GENERIC_GPIO
310 select USB_ARCH_HAS_EHCI
311 help
312 Support for systems based on the Freescale 3xxx CPUs.
313
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100314config ARCH_NETX
315 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000316 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100317 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100318 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100319 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000320 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100321 This enables support for systems based on the Hilscher NetX Soc
322
323config ARCH_H720X
324 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000325 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100326 select ISA_DMA_API
327 help
328 This enables support for systems based on the Hynix HMS720x
329
Russell King3b938be2007-05-12 11:25:44 +0100330config ARCH_IOP13XX
331 bool "IOP13xx-based"
332 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000333 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100334 select PLAT_IOP
335 select PCI
336 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100337 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100338 help
339 Support for Intel's IOP13XX (XScale) family of processors.
340
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100341config ARCH_IOP32X
342 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100343 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000344 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100345 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100346 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100347 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100348 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000349 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100350 Support for Intel's 80219 and IOP32X (XScale) family of
351 processors.
352
353config ARCH_IOP33X
354 bool "IOP33x-based"
355 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000356 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100357 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100358 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100359 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100360 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100361 help
362 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363
Russell King3b938be2007-05-12 11:25:44 +0100364config ARCH_IXP23XX
365 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100366 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000367 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100368 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100369 help
Russell King3b938be2007-05-12 11:25:44 +0100370 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371
372config ARCH_IXP2000
373 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100374 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000375 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100376 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000377 help
378 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379
Russell King3b938be2007-05-12 11:25:44 +0100380config ARCH_IXP4XX
381 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100382 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000383 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100384 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100385 select GENERIC_TIME
386 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100387 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100388 help
Russell King3b938be2007-05-12 11:25:44 +0100389 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100390
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391config ARCH_L7200
392 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000393 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394 select FIQ
395 help
396 Say Y here if you intend to run this kernel on a LinkUp Systems
397 L7200 Software Development Board which uses an ARM720T processor.
398 Information on this board can be obtained at:
399
400 <http://www.linkupsys.com/>
401
402 If you have any questions or comments about the Linux kernel port
403 to this board, send e-mail to <sjhill@cotw.com>.
404
Saeed Bishara651c74c2008-06-22 22:45:06 +0200405config ARCH_KIRKWOOD
406 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000407 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200408 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200409 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700410 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200411 select GENERIC_TIME
412 select GENERIC_CLOCKEVENTS
413 select PLAT_ORION
414 help
415 Support for the following Marvell Kirkwood series SoCs:
416 88F6180, 88F6192 and 88F6281.
417
Russell King788c9702009-04-26 14:21:59 +0100418config ARCH_LOKI
419 bool "Marvell Loki (88RC8480)"
420 select CPU_FEROCEON
421 select GENERIC_TIME
422 select GENERIC_CLOCKEVENTS
423 select PLAT_ORION
424 help
425 Support for the Marvell Loki (88RC8480) SoC.
426
427config ARCH_MV78XX0
428 bool "Marvell MV78xx0"
429 select CPU_FEROCEON
430 select PCI
431 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700432 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100433 select GENERIC_TIME
434 select GENERIC_CLOCKEVENTS
435 select PLAT_ORION
436 help
437 Support for the following Marvell MV78xx0 series SoCs:
438 MV781x0, MV782x0.
439
440config ARCH_ORION5X
441 bool "Marvell Orion"
442 depends on MMU
443 select CPU_FEROCEON
444 select PCI
445 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700446 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100447 select GENERIC_TIME
448 select GENERIC_CLOCKEVENTS
449 select PLAT_ORION
450 help
451 Support for the following Marvell Orion 5x series SoCs:
452 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
453 Orion-2 (5281), Orion-1-90 (6183).
454
455config ARCH_MMP
456 bool "Marvell PXA168/910"
457 depends on MMU
458 select GENERIC_GPIO
459 select ARCH_REQUIRE_GPIOLIB
460 select HAVE_CLK
461 select COMMON_CLKDEV
462 select GENERIC_TIME
463 select GENERIC_CLOCKEVENTS
464 select TICK_ONESHOT
465 select PLAT_PXA
466 help
467 Support for Marvell's PXA168/910 processor line.
468
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100469config ARCH_KS8695
470 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000471 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100472 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000473 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100474 help
475 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
476 System-on-Chip devices.
477
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100478config ARCH_NS9XXX
479 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000480 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100481 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100482 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100483 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700484 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100485 help
486 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
487 System.
488
489 <http://www.digi.com/products/microprocessors/index.jsp>
490
Russell King788c9702009-04-26 14:21:59 +0100491config ARCH_W90X900
492 bool "Nuvoton W90X900 CPU"
493 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100494 select ARCH_REQUIRE_GPIOLIB
495 select GENERIC_GPIO
wanzongshun0e4a34b2009-06-10 15:50:44 +0100496 select COMMON_CLKDEV
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200497 help
Russell King788c9702009-04-26 14:21:59 +0100498 Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
499 can login www.mcuos.com or www.nuvoton.com to know more.
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100501config ARCH_PNX4008
502 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000503 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700504 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100505 help
506 This enables support for Philips PNX4008 mobile platform.
507
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700509 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100510 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500511 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800512 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700513 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000514 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700515 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100516 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100517 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000518 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800519 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000520 help
eric miao2c8086a2007-09-11 19:13:17 -0700521 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522
Russell King788c9702009-04-26 14:21:59 +0100523config ARCH_MSM
524 bool "Qualcomm MSM"
525 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800526 select GENERIC_TIME
527 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800528 help
Russell King788c9702009-04-26 14:21:59 +0100529 Support for Qualcomm MSM7K based systems. This runs on the ARM11
530 apps processor of the MSM7K and depends on a shared memory
531 interface to the ARM9 modem processor which runs the baseband stack
532 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800533
Linus Torvalds1da177e2005-04-16 15:20:36 -0700534config ARCH_RPC
535 bool "RiscPC"
536 select ARCH_ACORN
537 select FIQ
538 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100539 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100540 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000541 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000542 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100543 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544 help
545 On the Acorn Risc-PC, Linux can support the internal IDE disk and
546 CD-ROM interface, serial and parallel port, and the floppy drive.
547
548config ARCH_SA1100
549 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000550 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100551 select ISA
Russell King05944d72006-11-30 20:43:51 +0000552 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500553 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800554 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000555 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100556 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700557 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100558 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700559 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000560 help
561 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562
563config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100564 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800565 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700566 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567 help
568 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
569 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000570 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700571
Ben Dooksa08ab632008-10-21 14:06:39 +0100572config ARCH_S3C64XX
573 bool "Samsung S3C64XX"
574 select GENERIC_GPIO
575 select HAVE_CLK
576 help
577 Samsung S3C64XX series based systems
578
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579config ARCH_SHARK
580 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000581 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100582 select ISA
583 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100584 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100585 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000586 help
587 Support for the StrongARM based Digital DNARD machine, also known
588 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589
590config ARCH_LH7A40X
591 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000592 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100593 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
594 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595 help
596 Say Y here for systems based on one of the Sharp LH7A40X
597 System on a Chip processors. These CPUs include an ARM922T
598 core with a wide array of integrated devices for
599 hand-held and low-power applications.
600
Linus Walleijd98aac72009-04-27 10:21:46 +0100601config ARCH_U300
602 bool "ST-Ericsson U300 Series"
603 depends on MMU
604 select CPU_ARM926T
605 select ARM_AMBA
606 select ARM_VIC
607 select GENERIC_TIME
608 select GENERIC_CLOCKEVENTS
609 select HAVE_CLK
610 select COMMON_CLKDEV
611 select GENERIC_GPIO
612 help
613 Support for ST-Ericsson U300 series mobile platforms.
614
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100615config ARCH_DAVINCI
616 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000617 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100618 select GENERIC_TIME
619 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100620 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700621 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700622 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100623 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700624 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700625 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700626 select GENERIC_ALLOCATOR
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100627 help
628 Support for TI's DaVinci platform.
629
Russell King3b938be2007-05-12 11:25:44 +0100630config ARCH_OMAP
631 bool "TI OMAP"
632 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700633 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700634 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100635 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700636 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100637 help
638 Support for TI's OMAP platform (OMAP1 and OMAP2).
639
Leo Chen6288e282009-08-07 19:46:15 +0100640config ARCH_BCMRING
641 bool "Broadcom BCMRING"
642 depends on MMU
643 select CPU_V6
644 select ARM_AMBA
645 select COMMON_CLKDEV
646 select GENERIC_TIME
647 select GENERIC_CLOCKEVENTS
648 select ARCH_WANT_OPTIONAL_GPIOLIB
649 help
650 Support for Broadcom's BCMRing platform.
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 Swetland9e73c842007-11-26 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
Leo Chen6288e282009-08-07 19:46:15 +0100745source "arch/arm/mach-bcmring/Kconfig"
746
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747# Definitions to make life easier
748config ARCH_ACORN
749 bool
750
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100751config PLAT_IOP
752 bool
753
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400754config PLAT_ORION
755 bool
756
Eric Miaobd5ce432009-01-20 12:06:01 +0800757config PLAT_PXA
758 bool
759
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760source arch/arm/mm/Kconfig
761
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100762config IWMMXT
763 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800764 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
765 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100766 help
767 Enable support for iWMMXt context switching at run time if
768 running on a CPU that supports it.
769
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
771config XSCALE_PMU
772 bool
773 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
774 default y
775
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100776if !MMU
777source "arch/arm/Kconfig-nommu"
778endif
779
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100780config ARM_ERRATA_411920
781 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
782 depends on CPU_V6 && !SMP
783 help
784 Invalidation of the Instruction Cache operation can
785 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
786 It does not affect the MPCore. This option enables the ARM Ltd.
787 recommended workaround.
788
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100789config ARM_ERRATA_430973
790 bool "ARM errata: Stale prediction on replaced interworking branch"
791 depends on CPU_V7
792 help
793 This option enables the workaround for the 430973 Cortex-A8
794 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
795 interworking branch is replaced with another code sequence at the
796 same virtual address, whether due to self-modifying code or virtual
797 to physical address re-mapping, Cortex-A8 does not recover from the
798 stale interworking branch prediction. This results in Cortex-A8
799 executing the new code sequence in the incorrect ARM or Thumb state.
800 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
801 and also flushes the branch target cache at every context switch.
802 Note that setting specific bits in the ACTLR register may not be
803 available in non-secure mode.
804
Catalin Marinas855c5512009-04-30 17:06:15 +0100805config ARM_ERRATA_458693
806 bool "ARM errata: Processor deadlock when a false hazard is created"
807 depends on CPU_V7
808 help
809 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
810 erratum. For very specific sequences of memory operations, it is
811 possible for a hazard condition intended for a cache line to instead
812 be incorrectly associated with a different cache line. This false
813 hazard might then cause a processor deadlock. The workaround enables
814 the L1 caching of the NEON accesses and disables the PLD instruction
815 in the ACTLR register. Note that setting specific bits in the ACTLR
816 register may not be available in non-secure mode.
817
Catalin Marinas0516e462009-04-30 17:06:20 +0100818config ARM_ERRATA_460075
819 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
820 depends on CPU_V7
821 help
822 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
823 erratum. Any asynchronous access to the L2 cache may encounter a
824 situation in which recent store transactions to the L2 cache are lost
825 and overwritten with stale memory contents from external memory. The
826 workaround disables the write-allocate mode for the L2 cache via the
827 ACTLR register. Note that setting specific bits in the ACTLR register
828 may not be available in non-secure mode.
829
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830endmenu
831
832source "arch/arm/common/Kconfig"
833
834config FORCE_MAX_ZONEORDER
835 int
836 depends on SA1111
837 default "9"
838
839menu "Bus support"
840
841config ARM_AMBA
842 bool
843
844config ISA
845 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846 help
847 Find out whether you have ISA slots on your motherboard. ISA is the
848 name of a bus system, i.e. the way the CPU talks to the other stuff
849 inside your box. Other bus systems are PCI, EISA, MicroChannel
850 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
851 newer boards don't support it. If you have ISA, say Y, otherwise N.
852
Russell King065909b2006-01-04 15:44:16 +0000853# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854config ISA_DMA
855 bool
Russell King065909b2006-01-04 15:44:16 +0000856 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857
Russell King065909b2006-01-04 15:44:16 +0000858# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100859config ISA_DMA_API
860 bool
Al Viro5cae8412005-05-04 05:39:22 +0100861
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100863 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864 help
865 Find out whether you have a PCI motherboard. PCI is the name of a
866 bus system, i.e. the way the CPU talks to the other stuff inside
867 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
868 VESA. If you have PCI, say Y, otherwise N.
869
Matthew Wilcox36e23592007-07-10 10:54:40 -0600870config PCI_SYSCALL
871 def_bool PCI
872
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873# Select the host bridge type
874config PCI_HOST_VIA82C505
875 bool
876 depends on PCI && ARCH_SHARK
877 default y
878
Mike Rapoporta0113a92007-11-25 08:55:34 +0100879config PCI_HOST_ITE8152
880 bool
881 depends on PCI && MACH_ARMCORE
882 default y
883 select DMABOUNCE
884
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885source "drivers/pci/Kconfig"
886
887source "drivers/pcmcia/Kconfig"
888
889endmenu
890
891menu "Kernel Features"
892
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100893source "kernel/time/Kconfig"
894
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895config SMP
896 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +0100897 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
898 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
Russell Kingbc282482009-05-17 18:58:34 +0100899 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +0200900 select USE_GENERIC_SMP_HELPERS
Santosh Shilimkar934f8be2009-04-28 20:52:05 +0530901 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902 help
903 This enables support for systems with more than one CPU. If you have
904 a system with only one CPU, like most personal computers, say N. If
905 you have a system with more than one CPU, say Y.
906
907 If you say N here, the kernel will run on single and multiprocessor
908 machines, but will use only one CPU of a multiprocessor machine. If
909 you say Y here, the kernel will run on many, but not all, single
910 processor machines. On a single processor machine, the kernel will
911 run faster if you say N here.
912
Adrian Bunk03502fa2008-02-03 15:50:21 +0200913 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
915 <http://www.linuxdoc.org/docs.html#howto>.
916
917 If you don't know what to do here, say N.
918
Russell Kinga8cbcd92009-05-16 11:51:14 +0100919config HAVE_ARM_SCU
920 bool
921 depends on SMP
922 help
923 This option enables support for the ARM system coherency unit
924
Russell Kingf32f4ce2009-05-16 12:14:21 +0100925config HAVE_ARM_TWD
926 bool
927 depends on SMP
928 help
929 This options enables support for the ARM timer and watchdog unit
930
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100931choice
932 prompt "Memory split"
933 default VMSPLIT_3G
934 help
935 Select the desired split between kernel and user memory.
936
937 If you are not absolutely sure what you are doing, leave this
938 option alone!
939
940 config VMSPLIT_3G
941 bool "3G/1G user/kernel split"
942 config VMSPLIT_2G
943 bool "2G/2G user/kernel split"
944 config VMSPLIT_1G
945 bool "1G/3G user/kernel split"
946endchoice
947
948config PAGE_OFFSET
949 hex
950 default 0x40000000 if VMSPLIT_1G
951 default 0x80000000 if VMSPLIT_2G
952 default 0xC0000000
953
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954config NR_CPUS
955 int "Maximum number of CPUs (2-32)"
956 range 2 32
957 depends on SMP
958 default "4"
959
Russell Kinga054a812005-11-02 22:24:33 +0000960config HOTPLUG_CPU
961 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
962 depends on SMP && HOTPLUG && EXPERIMENTAL
963 help
964 Say Y here to experiment with turning CPUs off and on. CPUs
965 can be controlled through /sys/devices/system/cpu.
966
Russell King37ee16a2005-11-08 19:08:05 +0000967config LOCAL_TIMERS
968 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +0100969 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
970 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
Russell King37ee16a2005-11-08 19:08:05 +0000971 default y
Santosh Shilimkar934f8be2009-04-28 20:52:05 +0530972 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4)
Russell King37ee16a2005-11-08 19:08:05 +0000973 help
974 Enable support for local timers on SMP platforms, rather then the
975 legacy IPI broadcast method. Local timers allows the system
976 accounting to be spread across the timer interval, preventing a
977 "thundering herd" at every timer tick.
978
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979config PREEMPT
980 bool "Preemptible Kernel (EXPERIMENTAL)"
981 depends on EXPERIMENTAL
982 help
983 This option reduces the latency of the kernel when reacting to
984 real-time or interactive events by allowing a low priority process to
985 be preempted even if it is in kernel mode executing a system call.
986 This allows applications to run more reliably even when the system is
987 under load.
988
989 Say Y here if you are building a kernel for a desktop, embedded
990 or real-time system. Say N if you are unsure.
991
Russell Kingf8065812006-03-02 22:41:59 +0000992config HZ
993 int
994 default 128 if ARCH_L7200
995 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000996 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100997 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000998 default 100
999
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001000config AEABI
1001 bool "Use the ARM EABI to compile the kernel"
1002 help
1003 This option allows for the kernel to be compiled using the latest
1004 ARM ABI (aka EABI). This is only useful if you are using a user
1005 space environment that is also compiled with EABI.
1006
1007 Since there are major incompatibilities between the legacy ABI and
1008 EABI, especially with regard to structure member alignment, this
1009 option also changes the kernel syscall calling convention to
1010 disambiguate both ABIs and allow for backward compatibility support
1011 (selected with CONFIG_OABI_COMPAT).
1012
1013 To use this you need GCC version 4.0.0 or later.
1014
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001015config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001016 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001017 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001018 default y
1019 help
1020 This option preserves the old syscall interface along with the
1021 new (ARM EABI) one. It also provides a compatibility layer to
1022 intercept syscalls that have structure arguments which layout
1023 in memory differs between the legacy ABI and the new ARM EABI
1024 (only for non "thumb" binaries). This option adds a tiny
1025 overhead to all syscalls and produces a slightly larger kernel.
1026 If you know you'll be using only pure EABI user space then you
1027 can say N here. If this option is not selected and you attempt
1028 to execute a legacy ABI binary then the result will be
1029 UNPREDICTABLE (in fact it can be predicted that it won't work
1030 at all). If in doubt say Y.
1031
Mel Gormaneb335752009-05-13 17:34:48 +01001032config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001033 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001034
Russell King07a2f732008-10-01 21:39:58 +01001035# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001036config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038
Russell King05944d72006-11-30 20:43:51 +00001039config ARCH_SPARSEMEM_ENABLE
1040 bool
1041
Russell King07a2f732008-10-01 21:39:58 +01001042config ARCH_SPARSEMEM_DEFAULT
1043 def_bool ARCH_SPARSEMEM_ENABLE
1044
Russell King05944d72006-11-30 20:43:51 +00001045config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001046 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001047
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001048config NODES_SHIFT
1049 int
1050 default "4" if ARCH_LH7A40X
1051 default "2"
1052 depends on NEED_MULTIPLE_NODES
1053
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001054config HIGHMEM
1055 bool "High Memory Support (EXPERIMENTAL)"
1056 depends on MMU && EXPERIMENTAL
1057 help
1058 The address space of ARM processors is only 4 Gigabytes large
1059 and it has to accommodate user address space, kernel address
1060 space as well as some memory mapped IO. That means that, if you
1061 have a large amount of physical memory and/or IO, not all of the
1062 memory can be "permanently mapped" by the kernel. The physical
1063 memory that is not permanently mapped is called "high memory".
1064
1065 Depending on the selected kernel/user memory split, minimum
1066 vmalloc space and actual amount of RAM, you may not need this
1067 option which should result in a slightly faster kernel.
1068
1069 If unsure, say n.
1070
Dave Hansen3f22ab22005-06-23 00:07:43 -07001071source "mm/Kconfig"
1072
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073config LEDS
1074 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001075 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001076 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1078 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001079 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001080 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001081 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001082 help
1083 If you say Y here, the LEDs on your machine will be used
1084 to provide useful information about your current system status.
1085
1086 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1087 be able to select which LEDs are active using the options below. If
1088 you are compiling a kernel for the EBSA-110 or the LART however, the
1089 red LED will simply flash regularly to indicate that the system is
1090 still functional. It is safe to say Y here if you have a CATS
1091 system, but the driver will do nothing.
1092
1093config LEDS_TIMER
1094 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001095 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1096 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001098 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099 default y if ARCH_EBSA110
1100 help
1101 If you say Y here, one of the system LEDs (the green one on the
1102 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1103 will flash regularly to indicate that the system is still
1104 operational. This is mainly useful to kernel hackers who are
1105 debugging unstable kernels.
1106
1107 The LART uses the same LED for both Timer LED and CPU usage LED
1108 functions. You may choose to use both, but the Timer LED function
1109 will overrule the CPU usage LED.
1110
1111config LEDS_CPU
1112 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001113 !ARCH_OMAP) \
1114 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1115 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001116 depends on LEDS
1117 help
1118 If you say Y here, the red LED will be used to give a good real
1119 time indication of CPU usage, by lighting whenever the idle task
1120 is not currently executing.
1121
1122 The LART uses the same LED for both Timer LED and CPU usage LED
1123 functions. You may choose to use both, but the Timer LED function
1124 will overrule the CPU usage LED.
1125
1126config ALIGNMENT_TRAP
1127 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001128 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129 default y if !ARCH_EBSA110
1130 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001131 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1133 address divisible by 4. On 32-bit ARM processors, these non-aligned
1134 fetch/store instructions will be emulated in software if you say
1135 here, which has a severe performance impact. This is necessary for
1136 correct operation of some network protocols. With an IP-only
1137 configuration it is safe to say N, otherwise say Y.
1138
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001139config UACCESS_WITH_MEMCPY
1140 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1141 depends on MMU && EXPERIMENTAL
1142 default y if CPU_FEROCEON
1143 help
1144 Implement faster copy_to_user and clear_user methods for CPU
1145 cores where a 8-word STM instruction give significantly higher
1146 memory write throughput than a sequence of individual 32bit stores.
1147
1148 A possible side effect is a slight increase in scheduling latency
1149 between threads sharing the same address space if they invoke
1150 such copy operations with large buffers.
1151
1152 However, if the CPU data cache is using a write-allocate mode,
1153 this option is unlikely to provide any performance gain.
1154
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155endmenu
1156
1157menu "Boot options"
1158
1159# Compressed boot loader in ROM. Yes, we really want to ask about
1160# TEXT and BSS so we preserve their values in the config files.
1161config ZBOOT_ROM_TEXT
1162 hex "Compressed ROM boot loader base address"
1163 default "0"
1164 help
1165 The physical address at which the ROM-able zImage is to be
1166 placed in the target. Platforms which normally make use of
1167 ROM-able zImage formats normally set this to a suitable
1168 value in their defconfig file.
1169
1170 If ZBOOT_ROM is not enabled, this has no effect.
1171
1172config ZBOOT_ROM_BSS
1173 hex "Compressed ROM boot loader BSS address"
1174 default "0"
1175 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001176 The base address of an area of read/write memory in the target
1177 for the ROM-able zImage which must be available while the
1178 decompressor is running. It must be large enough to hold the
1179 entire decompressed kernel plus an additional 128 KiB.
1180 Platforms which normally make use of ROM-able zImage formats
1181 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182
1183 If ZBOOT_ROM is not enabled, this has no effect.
1184
1185config ZBOOT_ROM
1186 bool "Compressed boot loader in ROM/flash"
1187 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1188 help
1189 Say Y here if you intend to execute your compressed kernel image
1190 (zImage) directly from ROM or flash. If unsure, say N.
1191
1192config CMDLINE
1193 string "Default kernel command string"
1194 default ""
1195 help
1196 On some architectures (EBSA110 and CATS), there is currently no way
1197 for the boot loader to pass arguments to the kernel. For these
1198 architectures, you should supply some command-line options at build
1199 time by entering them here. As a minimum, you should specify the
1200 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1201
1202config XIP_KERNEL
1203 bool "Kernel Execute-In-Place from ROM"
1204 depends on !ZBOOT_ROM
1205 help
1206 Execute-In-Place allows the kernel to run from non-volatile storage
1207 directly addressable by the CPU, such as NOR flash. This saves RAM
1208 space since the text section of the kernel is not loaded from flash
1209 to RAM. Read-write sections, such as the data section and stack,
1210 are still copied to RAM. The XIP kernel is not compressed since
1211 it has to run directly from flash, so it will take more space to
1212 store it. The flash address used to link the kernel object files,
1213 and for storing it, is configuration dependent. Therefore, if you
1214 say Y here, you must know the proper physical address where to
1215 store the kernel image depending on your own flash memory usage.
1216
1217 Also note that the make target becomes "make xipImage" rather than
1218 "make zImage" or "make Image". The final kernel binary to put in
1219 ROM memory will be arch/arm/boot/xipImage.
1220
1221 If unsure, say N.
1222
1223config XIP_PHYS_ADDR
1224 hex "XIP Kernel Physical Location"
1225 depends on XIP_KERNEL
1226 default "0x00080000"
1227 help
1228 This is the physical address in your flash memory the kernel will
1229 be linked for and stored to. This address is dependent on your
1230 own flash usage.
1231
Richard Purdiec587e4a2007-02-06 21:29:00 +01001232config KEXEC
1233 bool "Kexec system call (EXPERIMENTAL)"
1234 depends on EXPERIMENTAL
1235 help
1236 kexec is a system call that implements the ability to shutdown your
1237 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001238 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001239 you can start any kernel with it, not just Linux.
1240
1241 It is an ongoing process to be certain the hardware in a machine
1242 is properly shutdown, so do not be surprised if this code does not
1243 initially work for you. It may help to enable device hotplugging
1244 support.
1245
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001246config ATAGS_PROC
1247 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001248 depends on KEXEC
1249 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001250 help
1251 Should the atags used to boot the kernel be exported in an "atags"
1252 file in procfs. Useful with kexec.
1253
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254endmenu
1255
Russell Kingac9d7ef2008-08-18 17:26:00 +01001256menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001257
Mark Brownb3748dd2009-06-15 11:23:20 +01001258if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_PXA || ARCH_S3C64XX)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259
1260source "drivers/cpufreq/Kconfig"
1261
1262config CPU_FREQ_SA1100
1263 bool
Dmitry Artamonow7bc35b52009-02-20 10:16:01 +01001264 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265 default y
1266
1267config CPU_FREQ_SA1110
1268 bool
1269 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1270 default y
1271
1272config CPU_FREQ_INTEGRATOR
1273 tristate "CPUfreq driver for ARM Integrator CPUs"
1274 depends on ARCH_INTEGRATOR && CPU_FREQ
1275 default y
1276 help
1277 This enables the CPUfreq driver for ARM Integrator CPUs.
1278
1279 For details, take a look at <file:Documentation/cpu-freq>.
1280
1281 If in doubt, say Y.
1282
Russell King9e2697f2007-12-14 13:30:14 +00001283config CPU_FREQ_PXA
1284 bool
1285 depends on CPU_FREQ && ARCH_PXA && PXA25x
1286 default y
1287 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1288
Mark Brownb3748dd2009-06-15 11:23:20 +01001289config CPU_FREQ_S3C64XX
1290 bool "CPUfreq support for Samsung S3C64XX CPUs"
1291 depends on CPU_FREQ && CPU_S3C6410
1292
Linus Torvalds1da177e2005-04-16 15:20:36 -07001293endif
1294
Russell Kingac9d7ef2008-08-18 17:26:00 +01001295source "drivers/cpuidle/Kconfig"
1296
1297endmenu
1298
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299menu "Floating point emulation"
1300
1301comment "At least one emulation must be selected"
1302
1303config FPE_NWFPE
1304 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001305 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306 ---help---
1307 Say Y to include the NWFPE floating point emulator in the kernel.
1308 This is necessary to run most binaries. Linux does not currently
1309 support floating point hardware so you need to say Y here even if
1310 your machine has an FPA or floating point co-processor podule.
1311
1312 You may say N here if you are going to load the Acorn FPEmulator
1313 early in the bootup.
1314
1315config FPE_NWFPE_XP
1316 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001317 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318 help
1319 Say Y to include 80-bit support in the kernel floating-point
1320 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1321 Note that gcc does not generate 80-bit operations by default,
1322 so in most cases this option only enlarges the size of the
1323 floating point emulator without any good reason.
1324
1325 You almost surely want to say N here.
1326
1327config FPE_FASTFPE
1328 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001329 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330 ---help---
1331 Say Y here to include the FAST floating point emulator in the kernel.
1332 This is an experimental much faster emulator which now also has full
1333 precision for the mantissa. It does not support any exceptions.
1334 It is very simple, and approximately 3-6 times faster than NWFPE.
1335
1336 It should be sufficient for most programs. It may be not suitable
1337 for scientific calculations, but you have to check this for yourself.
1338 If you do not feel you need a faster FP emulation you should better
1339 choose NWFPE.
1340
1341config VFP
1342 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001343 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344 help
1345 Say Y to include VFP support code in the kernel. This is needed
1346 if your hardware includes a VFP unit.
1347
1348 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1349 release notes and additional status information.
1350
1351 Say N if your target does not have VFP hardware.
1352
Catalin Marinas25ebee02007-09-25 15:22:24 +01001353config VFPv3
1354 bool
1355 depends on VFP
1356 default y if CPU_V7
1357
Catalin Marinasb5872db2008-01-10 19:16:17 +01001358config NEON
1359 bool "Advanced SIMD (NEON) Extension support"
1360 depends on VFPv3 && CPU_V7
1361 help
1362 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1363 Extension.
1364
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365endmenu
1366
1367menu "Userspace binary formats"
1368
1369source "fs/Kconfig.binfmt"
1370
1371config ARTHUR
1372 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001373 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374 help
1375 Say Y here to include the kernel code necessary if you want to run
1376 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1377 experimental; if this sounds frightening, say N and sleep in peace.
1378 You can also say M here to compile this support as a module (which
1379 will be called arthur).
1380
1381endmenu
1382
1383menu "Power management options"
1384
Russell Kingeceab4a2005-11-15 11:31:41 +00001385source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001386
Johannes Bergf4cb5702007-12-08 02:14:00 +01001387config ARCH_SUSPEND_POSSIBLE
1388 def_bool y
1389
Linus Torvalds1da177e2005-04-16 15:20:36 -07001390endmenu
1391
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001392source "net/Kconfig"
1393
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394menu "Device Drivers"
1395
1396source "drivers/base/Kconfig"
1397
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001398source "drivers/connector/Kconfig"
1399
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001400if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001401source "drivers/mtd/Kconfig"
1402endif
1403
1404source "drivers/parport/Kconfig"
1405
1406source "drivers/pnp/Kconfig"
1407
1408source "drivers/block/Kconfig"
1409
Russell King58273e52007-10-12 22:24:09 +01001410# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1411
1412source "drivers/misc/Kconfig"
1413
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415
1416source "drivers/scsi/Kconfig"
1417
Martin Michlmayreb370f02006-11-17 00:14:35 +01001418source "drivers/ata/Kconfig"
1419
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420source "drivers/md/Kconfig"
1421
1422source "drivers/message/fusion/Kconfig"
1423
1424source "drivers/ieee1394/Kconfig"
1425
1426source "drivers/message/i2o/Kconfig"
1427
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001428source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001429
1430source "drivers/isdn/Kconfig"
1431
1432# input before char - char/joystick depends on it. As does USB.
1433
1434source "drivers/input/Kconfig"
1435
1436source "drivers/char/Kconfig"
1437
1438source "drivers/i2c/Kconfig"
1439
David Brownell8ae12a02006-01-08 13:34:19 -08001440source "drivers/spi/Kconfig"
1441
David Brownella9c5fff2008-02-04 22:28:17 -08001442source "drivers/gpio/Kconfig"
1443
Alessandro Zummo04916c02006-03-10 22:30:01 +00001444source "drivers/w1/Kconfig"
1445
Russell King58273e52007-10-12 22:24:09 +01001446source "drivers/power/Kconfig"
1447
Jean Delvaread2f9312005-07-02 18:15:49 +02001448source "drivers/hwmon/Kconfig"
1449
Russell Kingac9d7ef2008-08-18 17:26:00 +01001450source "drivers/thermal/Kconfig"
1451
Russell King70dfa3f2007-11-07 14:13:35 +00001452source "drivers/watchdog/Kconfig"
1453
Russell King58273e52007-10-12 22:24:09 +01001454source "drivers/ssb/Kconfig"
1455
Linus Torvalds1da177e2005-04-16 15:20:36 -07001456#source "drivers/l3/Kconfig"
1457
Russell Kinga4e137a2005-08-18 10:06:59 +01001458source "drivers/mfd/Kconfig"
1459
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460source "drivers/media/Kconfig"
1461
1462source "drivers/video/Kconfig"
1463
1464source "sound/Kconfig"
1465
Sascha Hauerc2dade52006-12-12 10:32:42 +01001466source "drivers/hid/Kconfig"
1467
Linus Torvalds1da177e2005-04-16 15:20:36 -07001468source "drivers/usb/Kconfig"
1469
Greg Kroah-Hartman2f86c3e2008-09-17 16:34:11 +01001470source "drivers/uwb/Kconfig"
1471
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472source "drivers/mmc/Kconfig"
1473
Russell Kingac9d7ef2008-08-18 17:26:00 +01001474source "drivers/memstick/Kconfig"
1475
1476source "drivers/accessibility/Kconfig"
1477
Russell King58273e52007-10-12 22:24:09 +01001478source "drivers/leds/Kconfig"
1479
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001480source "drivers/rtc/Kconfig"
1481
Dan Williams58168152007-01-02 11:10:43 -07001482source "drivers/dma/Kconfig"
1483
Dan Williamsabf07b12008-01-18 23:26:10 +01001484source "drivers/dca/Kconfig"
1485
Russell Kingac9d7ef2008-08-18 17:26:00 +01001486source "drivers/auxdisplay/Kconfig"
1487
Liam Girdwoodba7e4762008-04-30 17:13:42 +01001488source "drivers/regulator/Kconfig"
1489
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001490source "drivers/uio/Kconfig"
1491
F. Duncan M. Haldane6e38a2b2008-11-07 18:17:51 -05001492source "drivers/staging/Kconfig"
1493
Linus Torvalds1da177e2005-04-16 15:20:36 -07001494endmenu
1495
1496source "fs/Kconfig"
1497
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498source "arch/arm/Kconfig.debug"
1499
1500source "security/Kconfig"
1501
1502source "crypto/Kconfig"
1503
1504source "lib/Kconfig"