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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
37 default n
38
Kevin Hilman746140c2006-09-22 00:16:30 +010039config GENERIC_TIME
40 bool
41 default n
42
Kevin Hilman0567a0c2007-03-13 20:29:24 +010043config GENERIC_CLOCKEVENTS
44 bool
45 default n
46
Catalin Marinasa8655e82008-02-04 17:30:57 +010047config GENERIC_CLOCKEVENTS_BROADCAST
48 bool
49 depends on GENERIC_CLOCKEVENTS
50 default y if SMP && !LOCAL_TIMERS
51
Linus Torvalds1da177e2005-04-16 15:20:36 -070052config MMU
53 bool
54 default y
55
Al Viro5ea81762007-02-11 15:41:31 +000056config NO_IOPORT
57 bool
58 default n
59
Linus Torvalds1da177e2005-04-16 15:20:36 -070060config EISA
61 bool
62 ---help---
63 The Extended Industry Standard Architecture (EISA) bus was
64 developed as an open alternative to the IBM MicroChannel bus.
65
66 The EISA bus provided some of the features of the IBM MicroChannel
67 bus while maintaining backward compatibility with cards made for
68 the older ISA bus. The EISA bus saw limited use between 1988 and
69 1995 when it was made obsolete by the PCI bus.
70
71 Say Y here if you are building a kernel for an EISA-based machine.
72
73 Otherwise, say N.
74
75config SBUS
76 bool
77
78config MCA
79 bool
80 help
81 MicroChannel Architecture is found in some IBM PS/2 machines and
82 laptops. It is a bus system similar to PCI or ISA. See
83 <file:Documentation/mca.txt> (and especially the web page given
84 there) before attempting to build an MCA bus kernel.
85
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010086config GENERIC_HARDIRQS
87 bool
88 default y
89
Russell Kingf16fb1e2007-04-28 09:59:37 +010090config STACKTRACE_SUPPORT
91 bool
92 default y
93
Nicolas Pitref76e9152008-04-24 01:31:46 -040094config HAVE_LATENCYTOP_SUPPORT
95 bool
96 depends on !SMP
97 default y
98
Russell Kingf16fb1e2007-04-28 09:59:37 +010099config LOCKDEP_SUPPORT
100 bool
101 default y
102
Russell King7ad1bcb2006-08-27 12:07:02 +0100103config TRACE_IRQFLAGS_SUPPORT
104 bool
105 default y
106
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100107config HARDIRQS_SW_RESEND
108 bool
109 default y
110
111config GENERIC_IRQ_PROBE
112 bool
113 default y
114
Nick Piggin95c354f2008-01-30 13:31:20 +0100115config GENERIC_LOCKBREAK
116 bool
117 default y
118 depends on SMP && PREEMPT
119
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120config RWSEM_GENERIC_SPINLOCK
121 bool
122 default y
123
124config RWSEM_XCHGADD_ALGORITHM
125 bool
126
David Howellsf0d1b0b2006-12-08 02:37:49 -0800127config ARCH_HAS_ILOG2_U32
128 bool
129 default n
130
131config ARCH_HAS_ILOG2_U64
132 bool
133 default n
134
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800135config GENERIC_HWEIGHT
136 bool
137 default y
138
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139config GENERIC_CALIBRATE_DELAY
140 bool
141 default y
142
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100143config ARCH_MAY_HAVE_PC_FDC
144 bool
145
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800146config ZONE_DMA
147 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800148
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149config GENERIC_ISA_DMA
150 bool
151
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152config FIQ
153 bool
154
Al Viro034d2f52005-12-19 16:27:59 -0500155config ARCH_MTD_XIP
156 bool
157
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100158config GENERIC_HARDIRQS_NO__DO_IRQ
159 bool
160 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"
204 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700205 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100206 help
207 This enables support for systems based on the Agilent AAEC-2000
208
209config ARCH_INTEGRATOR
210 bool "ARM Ltd. Integrator family"
211 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700212 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000213 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100214 select ICST525
215 help
216 Support for ARM's Integrator platform.
217
218config ARCH_REALVIEW
219 bool "ARM Ltd. RealView family"
220 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700221 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000222 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100223 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100224 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100225 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100226 help
227 This enables support for ARM Ltd RealView boards.
228
229config ARCH_VERSATILE
230 bool "ARM Ltd. Versatile family"
231 select ARM_AMBA
232 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700233 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000234 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100235 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100236 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100237 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100238 help
239 This enables support for ARM Ltd Versatile board.
240
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100241config ARCH_AT91
242 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800243 select GENERIC_GPIO
David Brownell93686ae2008-07-28 15:46:22 -0700244 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100245 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100246 This enables support for systems based on the Atmel AT91RM9200,
247 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100248
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100250 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100252 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000253 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100254 select ARCH_SPARSEMEM_ENABLE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000255 help
256 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257
258config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100259 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000260 help
261 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263config ARCH_EBSA110
264 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100265 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000266 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 help
268 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000269 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 Ethernet interface, two PCMCIA sockets, two serial ports and a
271 parallel port.
272
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000273config ARCH_EP93XX
274 bool "EP93xx-based"
275 select ARM_AMBA
276 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100277 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700278 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700279 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000280 help
281 This enables support for the Cirrus EP93xx series of CPUs.
282
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283config ARCH_FOOTBRIDGE
284 bool "FootBridge"
285 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
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100290config ARCH_NETX
291 bool "Hilscher NetX based"
292 select ARM_VIC
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000293 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100294 This enables support for systems based on the Hilscher NetX Soc
295
296config ARCH_H720X
297 bool "Hynix HMS720x-based"
298 select ISA_DMA_API
299 help
300 This enables support for systems based on the Hynix HMS720x
301
302config ARCH_IMX
303 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100304 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100305 select GENERIC_TIME
306 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100307 help
308 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309
Russell King3b938be2007-05-12 11:25:44 +0100310config ARCH_IOP13XX
311 bool "IOP13xx-based"
312 depends on MMU
313 select PLAT_IOP
314 select PCI
315 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100316 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100317 help
318 Support for Intel's IOP13XX (XScale) family of processors.
319
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100320config ARCH_IOP32X
321 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100322 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100323 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100324 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100325 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100326 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000327 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100328 Support for Intel's 80219 and IOP32X (XScale) family of
329 processors.
330
331config ARCH_IOP33X
332 bool "IOP33x-based"
333 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100334 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100335 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100336 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100337 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100338 help
339 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340
Russell King3b938be2007-05-12 11:25:44 +0100341config ARCH_IXP23XX
342 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100343 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100344 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100345 help
Russell King3b938be2007-05-12 11:25:44 +0100346 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347
348config ARCH_IXP2000
349 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100350 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100351 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000352 help
353 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354
Russell King3b938be2007-05-12 11:25:44 +0100355config ARCH_IXP4XX
356 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100357 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100358 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100359 select GENERIC_TIME
360 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100361 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100362 help
Russell King3b938be2007-05-12 11:25:44 +0100363 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100364
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365config ARCH_L7200
366 bool "LinkUp-L7200"
367 select FIQ
368 help
369 Say Y here if you intend to run this kernel on a LinkUp Systems
370 L7200 Software Development Board which uses an ARM720T processor.
371 Information on this board can be obtained at:
372
373 <http://www.linkupsys.com/>
374
375 If you have any questions or comments about the Linux kernel port
376 to this board, send e-mail to <sjhill@cotw.com>.
377
Saeed Bishara651c74c2008-06-22 22:45:06 +0200378config ARCH_KIRKWOOD
379 bool "Marvell Kirkwood"
380 select PCI
381 select GENERIC_TIME
382 select GENERIC_CLOCKEVENTS
383 select PLAT_ORION
384 help
385 Support for the following Marvell Kirkwood series SoCs:
386 88F6180, 88F6192 and 88F6281.
387
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100388config ARCH_KS8695
389 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100390 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100391 help
392 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
393 System-on-Chip devices.
394
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100395config ARCH_NS9XXX
396 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100397 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100398 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100399 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700400 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100401 help
402 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
403 System.
404
405 <http://www.digi.com/products/microprocessors/index.jsp>
406
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200407config ARCH_LOKI
408 bool "Marvell Loki (88RC8480)"
409 select GENERIC_TIME
410 select GENERIC_CLOCKEVENTS
411 select PLAT_ORION
412 help
413 Support for the Marvell Loki (88RC8480) SoC.
414
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200415config ARCH_MV78XX0
416 bool "Marvell MV78xx0"
417 select PCI
418 select GENERIC_TIME
419 select GENERIC_CLOCKEVENTS
420 select PLAT_ORION
421 help
422 Support for the following Marvell MV78xx0 series SoCs:
423 MV781x0, MV782x0.
424
Quinn Jensen52c543f2007-07-09 22:06:53 +0100425config ARCH_MXC
426 bool "Freescale MXC/iMX-based"
Juergen Beisertd0f349f2008-07-05 10:02:50 +0200427 select GENERIC_TIME
428 select GENERIC_CLOCKEVENTS
Quinn Jensen52c543f2007-07-09 22:06:53 +0100429 select ARCH_MTD_XIP
Juergen Beisert07bd1a62008-07-05 10:02:49 +0200430 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100431 select ARCH_REQUIRE_GPIOLIB
Quinn Jensen52c543f2007-07-09 22:06:53 +0100432 help
433 Support for Freescale MXC/iMX-based family of processors
434
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400435config ARCH_ORION5X
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400436 bool "Marvell Orion"
437 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400438 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400439 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400440 select GENERIC_TIME
441 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400442 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400443 help
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400444 Support for the following Marvell Orion 5x series SoCs:
Lennert Buytenhekd2b2a6b2008-05-31 08:30:40 +0200445 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
Lennert Buytenhekd323ade2008-08-29 06:55:06 +0200446 Orion-2 (5281), Orion-1-90 (6183).
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400447
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100448config ARCH_PNX4008
449 bool "Philips Nexperia PNX4008 Mobile"
David Brownell9483a572008-07-23 21:26:48 -0700450 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100451 help
452 This enables support for Philips PNX4008 mobile platform.
453
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700455 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100456 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500457 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800458 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700459 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000460 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700461 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100462 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100463 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000464 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000465 help
eric miao2c8086a2007-09-11 19:13:17 -0700466 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467
468config ARCH_RPC
469 bool "RiscPC"
470 select ARCH_ACORN
471 select FIQ
472 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100473 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100474 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000475 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000476 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100477 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478 help
479 On the Acorn Risc-PC, Linux can support the internal IDE disk and
480 CD-ROM interface, serial and parallel port, and the floppy drive.
481
482config ARCH_SA1100
483 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100484 select ISA
Russell King05944d72006-11-30 20:43:51 +0000485 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500486 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800487 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000488 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100489 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700490 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100491 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700492 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000493 help
494 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495
496config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100497 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800498 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700499 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500 help
501 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
502 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000503 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700504
505config ARCH_SHARK
506 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100507 select ISA
508 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100509 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100510 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000511 help
512 Support for the StrongARM based Digital DNARD machine, also known
513 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514
515config ARCH_LH7A40X
516 bool "Sharp LH7A40X"
Russell King4ba3f7c2008-10-01 21:38:23 +0100517 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
518 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519 help
520 Say Y here for systems based on one of the Sharp LH7A40X
521 System on a Chip processors. These CPUs include an ARM922T
522 core with a wide array of integrated devices for
523 hand-held and low-power applications.
524
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100525config ARCH_DAVINCI
526 bool "TI DaVinci"
527 select GENERIC_TIME
528 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100529 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700530 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700531 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100532 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100533 help
534 Support for TI's DaVinci platform.
535
Russell King3b938be2007-05-12 11:25:44 +0100536config ARCH_OMAP
537 bool "TI OMAP"
538 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700539 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700540 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100541 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700542 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100543 help
544 Support for TI's OMAP platform (OMAP1 and OMAP2).
545
Brian Swetland1637de02008-09-09 07:13:33 -0700546config ARCH_MSM
547 bool "Qualcomm MSM"
Brian Swetland30421022007-11-26 04:11:43 -0800548 select GENERIC_TIME
549 select GENERIC_CLOCKEVENTS
550 help
Brian Swetland1637de02008-09-09 07:13:33 -0700551 Support for Qualcomm MSM7K based systems. This runs on the ARM11
552 apps processor of the MSM7K and depends on a shared memory
Brian Swetland30421022007-11-26 04:11:43 -0800553 interface to the ARM9 modem processor which runs the baseband stack
554 and controls some vital subsystems (clock and power control, etc).
Brian Swetland30421022007-11-26 04:11:43 -0800555
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556endchoice
557
558source "arch/arm/mach-clps711x/Kconfig"
559
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000560source "arch/arm/mach-ep93xx/Kconfig"
561
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562source "arch/arm/mach-footbridge/Kconfig"
563
564source "arch/arm/mach-integrator/Kconfig"
565
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100566source "arch/arm/mach-iop32x/Kconfig"
567
568source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569
Dan Williams285f5fa2006-12-07 02:59:39 +0100570source "arch/arm/mach-iop13xx/Kconfig"
571
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572source "arch/arm/mach-ixp4xx/Kconfig"
573
574source "arch/arm/mach-ixp2000/Kconfig"
575
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100576source "arch/arm/mach-ixp23xx/Kconfig"
577
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200578source "arch/arm/mach-loki/Kconfig"
579
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200580source "arch/arm/mach-mv78xx0/Kconfig"
581
Linus Torvalds1da177e2005-04-16 15:20:36 -0700582source "arch/arm/mach-pxa/Kconfig"
583
584source "arch/arm/mach-sa1100/Kconfig"
585
Tony Lindgrend48af152005-07-10 19:58:17 +0100586source "arch/arm/plat-omap/Kconfig"
587
588source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589
Tony Lindgren1dbae812005-11-10 14:26:51 +0000590source "arch/arm/mach-omap2/Kconfig"
591
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400592source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400593
Saeed Bishara651c74c2008-06-22 22:45:06 +0200594source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595
Ben Dooksa21765a2007-02-11 18:31:01 +0100596source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100597source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100598
599if ARCH_S3C2410
600source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100602source "arch/arm/mach-s3c2412/Kconfig"
603source "arch/arm/mach-s3c2440/Kconfig"
604source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100605source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100606endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607
608source "arch/arm/mach-lh7a40x/Kconfig"
609
610source "arch/arm/mach-imx/Kconfig"
611
612source "arch/arm/mach-h720x/Kconfig"
613
614source "arch/arm/mach-versatile/Kconfig"
615
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100616source "arch/arm/mach-aaec2000/Kconfig"
617
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000618source "arch/arm/mach-realview/Kconfig"
619
Andrew Victor9d041262007-02-05 11:42:07 +0100620source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000621
Quinn Jensen52c543f2007-07-09 22:06:53 +0100622source "arch/arm/plat-mxc/Kconfig"
623
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100624source "arch/arm/mach-netx/Kconfig"
625
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100626source "arch/arm/mach-ns9xxx/Kconfig"
627
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100628source "arch/arm/mach-davinci/Kconfig"
629
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100630source "arch/arm/mach-ks8695/Kconfig"
631
Brian Swetland9e73c842007-11-26 04:12:13 -0800632source "arch/arm/mach-msm/Kconfig"
633
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634# Definitions to make life easier
635config ARCH_ACORN
636 bool
637
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100638config PLAT_IOP
639 bool
640
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400641config PLAT_ORION
642 bool
643
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644source arch/arm/mm/Kconfig
645
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100646config IWMMXT
647 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100648 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700649 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100650 help
651 Enable support for iWMMXt context switching at run time if
652 running on a CPU that supports it.
653
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
655config XSCALE_PMU
656 bool
657 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
658 default y
659
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100660if !MMU
661source "arch/arm/Kconfig-nommu"
662endif
663
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664endmenu
665
666source "arch/arm/common/Kconfig"
667
668config FORCE_MAX_ZONEORDER
669 int
670 depends on SA1111
671 default "9"
672
673menu "Bus support"
674
675config ARM_AMBA
676 bool
677
678config ISA
679 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680 help
681 Find out whether you have ISA slots on your motherboard. ISA is the
682 name of a bus system, i.e. the way the CPU talks to the other stuff
683 inside your box. Other bus systems are PCI, EISA, MicroChannel
684 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
685 newer boards don't support it. If you have ISA, say Y, otherwise N.
686
Russell King065909b2006-01-04 15:44:16 +0000687# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700688config ISA_DMA
689 bool
Russell King065909b2006-01-04 15:44:16 +0000690 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691
Russell King065909b2006-01-04 15:44:16 +0000692# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100693config ISA_DMA_API
694 bool
Al Viro5cae8412005-05-04 05:39:22 +0100695
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100697 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698 help
699 Find out whether you have a PCI motherboard. PCI is the name of a
700 bus system, i.e. the way the CPU talks to the other stuff inside
701 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
702 VESA. If you have PCI, say Y, otherwise N.
703
Matthew Wilcox36e23592007-07-10 10:54:40 -0600704config PCI_SYSCALL
705 def_bool PCI
706
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707# Select the host bridge type
708config PCI_HOST_VIA82C505
709 bool
710 depends on PCI && ARCH_SHARK
711 default y
712
Mike Rapoporta0113a92007-11-25 08:55:34 +0100713config PCI_HOST_ITE8152
714 bool
715 depends on PCI && MACH_ARMCORE
716 default y
717 select DMABOUNCE
718
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719source "drivers/pci/Kconfig"
720
721source "drivers/pcmcia/Kconfig"
722
723endmenu
724
725menu "Kernel Features"
726
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100727source "kernel/time/Kconfig"
728
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729config SMP
730 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100731 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Jens Axboef6dd9fa2008-06-10 20:48:30 +0200732 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733 help
734 This enables support for systems with more than one CPU. If you have
735 a system with only one CPU, like most personal computers, say N. If
736 you have a system with more than one CPU, say Y.
737
738 If you say N here, the kernel will run on single and multiprocessor
739 machines, but will use only one CPU of a multiprocessor machine. If
740 you say Y here, the kernel will run on many, but not all, single
741 processor machines. On a single processor machine, the kernel will
742 run faster if you say N here.
743
Adrian Bunk03502fa2008-02-03 15:50:21 +0200744 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
746 <http://www.linuxdoc.org/docs.html#howto>.
747
748 If you don't know what to do here, say N.
749
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100750choice
751 prompt "Memory split"
752 default VMSPLIT_3G
753 help
754 Select the desired split between kernel and user memory.
755
756 If you are not absolutely sure what you are doing, leave this
757 option alone!
758
759 config VMSPLIT_3G
760 bool "3G/1G user/kernel split"
761 config VMSPLIT_2G
762 bool "2G/2G user/kernel split"
763 config VMSPLIT_1G
764 bool "1G/3G user/kernel split"
765endchoice
766
767config PAGE_OFFSET
768 hex
769 default 0x40000000 if VMSPLIT_1G
770 default 0x80000000 if VMSPLIT_2G
771 default 0xC0000000
772
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773config NR_CPUS
774 int "Maximum number of CPUs (2-32)"
775 range 2 32
776 depends on SMP
777 default "4"
778
Russell Kinga054a812005-11-02 22:24:33 +0000779config HOTPLUG_CPU
780 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
781 depends on SMP && HOTPLUG && EXPERIMENTAL
782 help
783 Say Y here to experiment with turning CPUs off and on. CPUs
784 can be controlled through /sys/devices/system/cpu.
785
Russell King37ee16a2005-11-08 19:08:05 +0000786config LOCAL_TIMERS
787 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100788 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000789 default y
790 help
791 Enable support for local timers on SMP platforms, rather then the
792 legacy IPI broadcast method. Local timers allows the system
793 accounting to be spread across the timer interval, preventing a
794 "thundering herd" at every timer tick.
795
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796config PREEMPT
797 bool "Preemptible Kernel (EXPERIMENTAL)"
798 depends on EXPERIMENTAL
799 help
800 This option reduces the latency of the kernel when reacting to
801 real-time or interactive events by allowing a low priority process to
802 be preempted even if it is in kernel mode executing a system call.
803 This allows applications to run more reliably even when the system is
804 under load.
805
806 Say Y here if you are building a kernel for a desktop, embedded
807 or real-time system. Say N if you are unsure.
808
Russell Kingf8065812006-03-02 22:41:59 +0000809config HZ
810 int
811 default 128 if ARCH_L7200
812 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000813 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100814 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000815 default 100
816
Nicolas Pitre704bdda02006-01-14 16:33:50 +0000817config AEABI
818 bool "Use the ARM EABI to compile the kernel"
819 help
820 This option allows for the kernel to be compiled using the latest
821 ARM ABI (aka EABI). This is only useful if you are using a user
822 space environment that is also compiled with EABI.
823
824 Since there are major incompatibilities between the legacy ABI and
825 EABI, especially with regard to structure member alignment, this
826 option also changes the kernel syscall calling convention to
827 disambiguate both ABIs and allow for backward compatibility support
828 (selected with CONFIG_OABI_COMPAT).
829
830 To use this you need GCC version 4.0.0 or later.
831
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000832config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000833 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000834 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000835 default y
836 help
837 This option preserves the old syscall interface along with the
838 new (ARM EABI) one. It also provides a compatibility layer to
839 intercept syscalls that have structure arguments which layout
840 in memory differs between the legacy ABI and the new ARM EABI
841 (only for non "thumb" binaries). This option adds a tiny
842 overhead to all syscalls and produces a slightly larger kernel.
843 If you know you'll be using only pure EABI user space then you
844 can say N here. If this option is not selected and you attempt
845 to execute a legacy ABI binary then the result will be
846 UNPREDICTABLE (in fact it can be predicted that it won't work
847 at all). If in doubt say Y.
848
Mel Gormane80d6a22008-08-14 11:10:14 +0100849config ARCH_FLATMEM_HAS_HOLES
850 bool
851 default y
852 depends on FLATMEM
853
Russell King07a2f732008-10-01 21:39:58 +0100854# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -0700855config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857
Russell King05944d72006-11-30 20:43:51 +0000858config ARCH_SPARSEMEM_ENABLE
859 bool
860
Russell King07a2f732008-10-01 21:39:58 +0100861config ARCH_SPARSEMEM_DEFAULT
862 def_bool ARCH_SPARSEMEM_ENABLE
863
Russell King05944d72006-11-30 20:43:51 +0000864config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +0100865 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +0000866
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700867config NODES_SHIFT
868 int
869 default "4" if ARCH_LH7A40X
870 default "2"
871 depends on NEED_MULTIPLE_NODES
872
Dave Hansen3f22ab22005-06-23 00:07:43 -0700873source "mm/Kconfig"
874
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875config LEDS
876 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +0100877 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
879 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
880 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000881 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +0100882 ARCH_AT91 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400883 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884 help
885 If you say Y here, the LEDs on your machine will be used
886 to provide useful information about your current system status.
887
888 If you are compiling a kernel for a NetWinder or EBSA-285, you will
889 be able to select which LEDs are active using the options below. If
890 you are compiling a kernel for the EBSA-110 or the LART however, the
891 red LED will simply flash regularly to indicate that the system is
892 still functional. It is safe to say Y here if you have a CATS
893 system, but the driver will do nothing.
894
895config LEDS_TIMER
896 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700897 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
898 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100900 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901 default y if ARCH_EBSA110
902 help
903 If you say Y here, one of the system LEDs (the green one on the
904 NetWinder, the amber one on the EBSA285, or the red one on the LART)
905 will flash regularly to indicate that the system is still
906 operational. This is mainly useful to kernel hackers who are
907 debugging unstable kernels.
908
909 The LART uses the same LED for both Timer LED and CPU usage LED
910 functions. You may choose to use both, but the Timer LED function
911 will overrule the CPU usage LED.
912
913config LEDS_CPU
914 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700915 !ARCH_OMAP) \
916 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
917 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918 depends on LEDS
919 help
920 If you say Y here, the red LED will be used to give a good real
921 time indication of CPU usage, by lighting whenever the idle task
922 is not currently executing.
923
924 The LART uses the same LED for both Timer LED and CPU usage LED
925 functions. You may choose to use both, but the Timer LED function
926 will overrule the CPU usage LED.
927
928config ALIGNMENT_TRAP
929 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900930 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931 default y if !ARCH_EBSA110
932 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200933 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
935 address divisible by 4. On 32-bit ARM processors, these non-aligned
936 fetch/store instructions will be emulated in software if you say
937 here, which has a severe performance impact. This is necessary for
938 correct operation of some network protocols. With an IP-only
939 configuration it is safe to say N, otherwise say Y.
940
941endmenu
942
943menu "Boot options"
944
945# Compressed boot loader in ROM. Yes, we really want to ask about
946# TEXT and BSS so we preserve their values in the config files.
947config ZBOOT_ROM_TEXT
948 hex "Compressed ROM boot loader base address"
949 default "0"
950 help
951 The physical address at which the ROM-able zImage is to be
952 placed in the target. Platforms which normally make use of
953 ROM-able zImage formats normally set this to a suitable
954 value in their defconfig file.
955
956 If ZBOOT_ROM is not enabled, this has no effect.
957
958config ZBOOT_ROM_BSS
959 hex "Compressed ROM boot loader BSS address"
960 default "0"
961 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100962 The base address of an area of read/write memory in the target
963 for the ROM-able zImage which must be available while the
964 decompressor is running. It must be large enough to hold the
965 entire decompressed kernel plus an additional 128 KiB.
966 Platforms which normally make use of ROM-able zImage formats
967 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968
969 If ZBOOT_ROM is not enabled, this has no effect.
970
971config ZBOOT_ROM
972 bool "Compressed boot loader in ROM/flash"
973 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
974 help
975 Say Y here if you intend to execute your compressed kernel image
976 (zImage) directly from ROM or flash. If unsure, say N.
977
978config CMDLINE
979 string "Default kernel command string"
980 default ""
981 help
982 On some architectures (EBSA110 and CATS), there is currently no way
983 for the boot loader to pass arguments to the kernel. For these
984 architectures, you should supply some command-line options at build
985 time by entering them here. As a minimum, you should specify the
986 memory size and the root device (e.g., mem=64M root=/dev/nfs).
987
988config XIP_KERNEL
989 bool "Kernel Execute-In-Place from ROM"
990 depends on !ZBOOT_ROM
991 help
992 Execute-In-Place allows the kernel to run from non-volatile storage
993 directly addressable by the CPU, such as NOR flash. This saves RAM
994 space since the text section of the kernel is not loaded from flash
995 to RAM. Read-write sections, such as the data section and stack,
996 are still copied to RAM. The XIP kernel is not compressed since
997 it has to run directly from flash, so it will take more space to
998 store it. The flash address used to link the kernel object files,
999 and for storing it, is configuration dependent. Therefore, if you
1000 say Y here, you must know the proper physical address where to
1001 store the kernel image depending on your own flash memory usage.
1002
1003 Also note that the make target becomes "make xipImage" rather than
1004 "make zImage" or "make Image". The final kernel binary to put in
1005 ROM memory will be arch/arm/boot/xipImage.
1006
1007 If unsure, say N.
1008
1009config XIP_PHYS_ADDR
1010 hex "XIP Kernel Physical Location"
1011 depends on XIP_KERNEL
1012 default "0x00080000"
1013 help
1014 This is the physical address in your flash memory the kernel will
1015 be linked for and stored to. This address is dependent on your
1016 own flash usage.
1017
Richard Purdiec587e4a2007-02-06 21:29:00 +01001018config KEXEC
1019 bool "Kexec system call (EXPERIMENTAL)"
1020 depends on EXPERIMENTAL
1021 help
1022 kexec is a system call that implements the ability to shutdown your
1023 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001024 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001025 you can start any kernel with it, not just Linux.
1026
1027 It is an ongoing process to be certain the hardware in a machine
1028 is properly shutdown, so do not be surprised if this code does not
1029 initially work for you. It may help to enable device hotplugging
1030 support.
1031
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001032config ATAGS_PROC
1033 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001034 depends on KEXEC
1035 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001036 help
1037 Should the atags used to boot the kernel be exported in an "atags"
1038 file in procfs. Useful with kexec.
1039
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040endmenu
1041
Russell Kingac9d7ef2008-08-18 17:26:00 +01001042menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043
Russell Kingac9d7ef2008-08-18 17:26:00 +01001044if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045
1046source "drivers/cpufreq/Kconfig"
1047
1048config CPU_FREQ_SA1100
1049 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +01001050 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051 default y
1052
1053config CPU_FREQ_SA1110
1054 bool
1055 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1056 default y
1057
1058config CPU_FREQ_INTEGRATOR
1059 tristate "CPUfreq driver for ARM Integrator CPUs"
1060 depends on ARCH_INTEGRATOR && CPU_FREQ
1061 default y
1062 help
1063 This enables the CPUfreq driver for ARM Integrator CPUs.
1064
1065 For details, take a look at <file:Documentation/cpu-freq>.
1066
1067 If in doubt, say Y.
1068
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +01001069config CPU_FREQ_IMX
1070 tristate "CPUfreq driver for i.MX CPUs"
1071 depends on ARCH_IMX && CPU_FREQ
1072 default n
1073 help
1074 This enables the CPUfreq driver for i.MX CPUs.
1075
1076 If in doubt, say N.
1077
Russell King9e2697f2007-12-14 13:30:14 +00001078config CPU_FREQ_PXA
1079 bool
1080 depends on CPU_FREQ && ARCH_PXA && PXA25x
1081 default y
1082 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1083
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084endif
1085
Russell Kingac9d7ef2008-08-18 17:26:00 +01001086source "drivers/cpuidle/Kconfig"
1087
1088endmenu
1089
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090menu "Floating point emulation"
1091
1092comment "At least one emulation must be selected"
1093
1094config FPE_NWFPE
1095 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001096 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097 ---help---
1098 Say Y to include the NWFPE floating point emulator in the kernel.
1099 This is necessary to run most binaries. Linux does not currently
1100 support floating point hardware so you need to say Y here even if
1101 your machine has an FPA or floating point co-processor podule.
1102
1103 You may say N here if you are going to load the Acorn FPEmulator
1104 early in the bootup.
1105
1106config FPE_NWFPE_XP
1107 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001108 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001109 help
1110 Say Y to include 80-bit support in the kernel floating-point
1111 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1112 Note that gcc does not generate 80-bit operations by default,
1113 so in most cases this option only enlarges the size of the
1114 floating point emulator without any good reason.
1115
1116 You almost surely want to say N here.
1117
1118config FPE_FASTFPE
1119 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001120 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121 ---help---
1122 Say Y here to include the FAST floating point emulator in the kernel.
1123 This is an experimental much faster emulator which now also has full
1124 precision for the mantissa. It does not support any exceptions.
1125 It is very simple, and approximately 3-6 times faster than NWFPE.
1126
1127 It should be sufficient for most programs. It may be not suitable
1128 for scientific calculations, but you have to check this for yourself.
1129 If you do not feel you need a faster FP emulation you should better
1130 choose NWFPE.
1131
1132config VFP
1133 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001134 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001135 help
1136 Say Y to include VFP support code in the kernel. This is needed
1137 if your hardware includes a VFP unit.
1138
1139 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1140 release notes and additional status information.
1141
1142 Say N if your target does not have VFP hardware.
1143
Catalin Marinas25ebee02007-09-25 15:22:24 +01001144config VFPv3
1145 bool
1146 depends on VFP
1147 default y if CPU_V7
1148
Catalin Marinasb5872db2008-01-10 19:16:17 +01001149config NEON
1150 bool "Advanced SIMD (NEON) Extension support"
1151 depends on VFPv3 && CPU_V7
1152 help
1153 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1154 Extension.
1155
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156endmenu
1157
1158menu "Userspace binary formats"
1159
1160source "fs/Kconfig.binfmt"
1161
1162config ARTHUR
1163 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001164 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001165 help
1166 Say Y here to include the kernel code necessary if you want to run
1167 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1168 experimental; if this sounds frightening, say N and sleep in peace.
1169 You can also say M here to compile this support as a module (which
1170 will be called arthur).
1171
1172endmenu
1173
1174menu "Power management options"
1175
Russell Kingeceab4a2005-11-15 11:31:41 +00001176source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177
Johannes Bergf4cb5702007-12-08 02:14:00 +01001178config ARCH_SUSPEND_POSSIBLE
1179 def_bool y
1180
Linus Torvalds1da177e2005-04-16 15:20:36 -07001181endmenu
1182
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001183source "net/Kconfig"
1184
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185menu "Device Drivers"
1186
1187source "drivers/base/Kconfig"
1188
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001189source "drivers/connector/Kconfig"
1190
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001191if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001192source "drivers/mtd/Kconfig"
1193endif
1194
1195source "drivers/parport/Kconfig"
1196
1197source "drivers/pnp/Kconfig"
1198
1199source "drivers/block/Kconfig"
1200
Russell King58273e52007-10-12 22:24:09 +01001201# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1202
1203source "drivers/misc/Kconfig"
1204
Linus Torvalds1da177e2005-04-16 15:20:36 -07001205source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206
1207source "drivers/scsi/Kconfig"
1208
Martin Michlmayreb370f02006-11-17 00:14:35 +01001209source "drivers/ata/Kconfig"
1210
Linus Torvalds1da177e2005-04-16 15:20:36 -07001211source "drivers/md/Kconfig"
1212
1213source "drivers/message/fusion/Kconfig"
1214
1215source "drivers/ieee1394/Kconfig"
1216
1217source "drivers/message/i2o/Kconfig"
1218
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001219source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001220
1221source "drivers/isdn/Kconfig"
1222
1223# input before char - char/joystick depends on it. As does USB.
1224
1225source "drivers/input/Kconfig"
1226
1227source "drivers/char/Kconfig"
1228
1229source "drivers/i2c/Kconfig"
1230
David Brownell8ae12a02006-01-08 13:34:19 -08001231source "drivers/spi/Kconfig"
1232
David Brownella9c5fff2008-02-04 22:28:17 -08001233source "drivers/gpio/Kconfig"
1234
Alessandro Zummo04916c02006-03-10 22:30:01 +00001235source "drivers/w1/Kconfig"
1236
Russell King58273e52007-10-12 22:24:09 +01001237source "drivers/power/Kconfig"
1238
Jean Delvaread2f9312005-07-02 18:15:49 +02001239source "drivers/hwmon/Kconfig"
1240
Russell Kingac9d7ef2008-08-18 17:26:00 +01001241source "drivers/thermal/Kconfig"
1242
Russell King70dfa3f2007-11-07 14:13:35 +00001243source "drivers/watchdog/Kconfig"
1244
Russell King58273e52007-10-12 22:24:09 +01001245source "drivers/ssb/Kconfig"
1246
Linus Torvalds1da177e2005-04-16 15:20:36 -07001247#source "drivers/l3/Kconfig"
1248
Russell Kinga4e137a2005-08-18 10:06:59 +01001249source "drivers/mfd/Kconfig"
1250
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251source "drivers/media/Kconfig"
1252
1253source "drivers/video/Kconfig"
1254
1255source "sound/Kconfig"
1256
Sascha Hauerc2dade52006-12-12 10:32:42 +01001257source "drivers/hid/Kconfig"
1258
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259source "drivers/usb/Kconfig"
1260
Greg Kroah-Hartman2f86c3e2008-09-17 16:34:11 +01001261source "drivers/uwb/Kconfig"
1262
Linus Torvalds1da177e2005-04-16 15:20:36 -07001263source "drivers/mmc/Kconfig"
1264
Russell Kingac9d7ef2008-08-18 17:26:00 +01001265source "drivers/memstick/Kconfig"
1266
1267source "drivers/accessibility/Kconfig"
1268
Russell King58273e52007-10-12 22:24:09 +01001269source "drivers/leds/Kconfig"
1270
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001271source "drivers/rtc/Kconfig"
1272
Dan Williams58168152007-01-02 11:10:43 -07001273source "drivers/dma/Kconfig"
1274
Dan Williamsabf07b12008-01-18 23:26:10 +01001275source "drivers/dca/Kconfig"
1276
Russell Kingac9d7ef2008-08-18 17:26:00 +01001277source "drivers/auxdisplay/Kconfig"
1278
Liam Girdwoodba7e4762008-04-30 17:13:42 +01001279source "drivers/regulator/Kconfig"
1280
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001281source "drivers/uio/Kconfig"
1282
Linus Torvalds1da177e2005-04-16 15:20:36 -07001283endmenu
1284
1285source "fs/Kconfig"
1286
Linus Torvalds1da177e2005-04-16 15:20:36 -07001287source "arch/arm/Kconfig.debug"
1288
1289source "security/Kconfig"
1290
1291source "crypto/Kconfig"
1292
1293source "lib/Kconfig"