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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
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100234 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100235 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100236 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100237 help
238 This enables support for ARM Ltd Versatile board.
239
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100240config ARCH_AT91
241 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800242 select GENERIC_GPIO
David Brownell93686ae2008-07-28 15:46:22 -0700243 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100244 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100245 This enables support for systems based on the Atmel AT91RM9200,
246 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100247
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100249 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100251 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000252 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100253 select ARCH_SPARSEMEM_ENABLE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000254 help
255 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256
257config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100258 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000259 help
260 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262config ARCH_EBSA110
263 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100264 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000265 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266 help
267 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000268 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 Ethernet interface, two PCMCIA sockets, two serial ports and a
270 parallel port.
271
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000272config ARCH_EP93XX
273 bool "EP93xx-based"
274 select ARM_AMBA
275 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100276 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700277 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700278 select ARCH_REQUIRE_GPIOLIB
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"
284 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000285 help
286 Support for systems based on the DC21285 companion chip
287 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100289config ARCH_NETX
290 bool "Hilscher NetX based"
291 select ARM_VIC
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000292 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100293 This enables support for systems based on the Hilscher NetX Soc
294
295config ARCH_H720X
296 bool "Hynix HMS720x-based"
297 select ISA_DMA_API
298 help
299 This enables support for systems based on the Hynix HMS720x
300
301config ARCH_IMX
302 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100303 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100304 select GENERIC_TIME
305 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100306 help
307 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308
Russell King3b938be2007-05-12 11:25:44 +0100309config ARCH_IOP13XX
310 bool "IOP13xx-based"
311 depends on MMU
312 select PLAT_IOP
313 select PCI
314 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100315 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100316 help
317 Support for Intel's IOP13XX (XScale) family of processors.
318
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100319config ARCH_IOP32X
320 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100321 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100322 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100323 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100324 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100325 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000326 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100327 Support for Intel's 80219 and IOP32X (XScale) family of
328 processors.
329
330config ARCH_IOP33X
331 bool "IOP33x-based"
332 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100333 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100334 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100335 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100336 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100337 help
338 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339
Russell King3b938be2007-05-12 11:25:44 +0100340config ARCH_IXP23XX
341 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100342 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100343 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100344 help
Russell King3b938be2007-05-12 11:25:44 +0100345 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346
347config ARCH_IXP2000
348 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100349 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100350 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000351 help
352 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353
Russell King3b938be2007-05-12 11:25:44 +0100354config ARCH_IXP4XX
355 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100356 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100357 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100358 select GENERIC_TIME
359 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100360 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100361 help
Russell King3b938be2007-05-12 11:25:44 +0100362 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100363
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364config ARCH_L7200
365 bool "LinkUp-L7200"
366 select FIQ
367 help
368 Say Y here if you intend to run this kernel on a LinkUp Systems
369 L7200 Software Development Board which uses an ARM720T processor.
370 Information on this board can be obtained at:
371
372 <http://www.linkupsys.com/>
373
374 If you have any questions or comments about the Linux kernel port
375 to this board, send e-mail to <sjhill@cotw.com>.
376
Saeed Bishara651c74c2008-06-22 22:45:06 +0200377config ARCH_KIRKWOOD
378 bool "Marvell Kirkwood"
379 select PCI
380 select GENERIC_TIME
381 select GENERIC_CLOCKEVENTS
382 select PLAT_ORION
383 help
384 Support for the following Marvell Kirkwood series SoCs:
385 88F6180, 88F6192 and 88F6281.
386
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100387config ARCH_KS8695
388 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100389 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100390 help
391 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
392 System-on-Chip devices.
393
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100394config ARCH_NS9XXX
395 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100396 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100397 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100398 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700399 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100400 help
401 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
402 System.
403
404 <http://www.digi.com/products/microprocessors/index.jsp>
405
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200406config ARCH_LOKI
407 bool "Marvell Loki (88RC8480)"
408 select GENERIC_TIME
409 select GENERIC_CLOCKEVENTS
410 select PLAT_ORION
411 help
412 Support for the Marvell Loki (88RC8480) SoC.
413
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200414config ARCH_MV78XX0
415 bool "Marvell MV78xx0"
416 select PCI
417 select GENERIC_TIME
418 select GENERIC_CLOCKEVENTS
419 select PLAT_ORION
420 help
421 Support for the following Marvell MV78xx0 series SoCs:
422 MV781x0, MV782x0.
423
Quinn Jensen52c543f2007-07-09 22:06:53 +0100424config ARCH_MXC
425 bool "Freescale MXC/iMX-based"
Juergen Beisertd0f349f2008-07-05 10:02:50 +0200426 select GENERIC_TIME
427 select GENERIC_CLOCKEVENTS
Quinn Jensen52c543f2007-07-09 22:06:53 +0100428 select ARCH_MTD_XIP
Juergen Beisert07bd1a62008-07-05 10:02:49 +0200429 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100430 select ARCH_REQUIRE_GPIOLIB
Quinn Jensen52c543f2007-07-09 22:06:53 +0100431 help
432 Support for Freescale MXC/iMX-based family of processors
433
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400434config ARCH_ORION5X
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400435 bool "Marvell Orion"
436 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400437 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400438 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400439 select GENERIC_TIME
440 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400441 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400442 help
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400443 Support for the following Marvell Orion 5x series SoCs:
Lennert Buytenhekd2b2a6b2008-05-31 08:30:40 +0200444 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
Lennert Buytenhekd323ade2008-08-29 06:55:06 +0200445 Orion-2 (5281), Orion-1-90 (6183).
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400446
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100447config ARCH_PNX4008
448 bool "Philips Nexperia PNX4008 Mobile"
David Brownell9483a572008-07-23 21:26:48 -0700449 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100450 help
451 This enables support for Philips PNX4008 mobile platform.
452
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700454 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100455 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500456 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800457 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700458 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700459 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100460 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100461 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000462 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000463 help
eric miao2c8086a2007-09-11 19:13:17 -0700464 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465
466config ARCH_RPC
467 bool "RiscPC"
468 select ARCH_ACORN
469 select FIQ
470 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100471 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100472 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000473 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000474 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100475 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700476 help
477 On the Acorn Risc-PC, Linux can support the internal IDE disk and
478 CD-ROM interface, serial and parallel port, and the floppy drive.
479
480config ARCH_SA1100
481 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100482 select ISA
Russell King05944d72006-11-30 20:43:51 +0000483 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500484 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800485 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000486 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100487 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700488 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100489 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700490 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000491 help
492 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493
494config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100495 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800496 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700497 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498 help
499 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
500 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000501 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502
503config ARCH_SHARK
504 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100505 select ISA
506 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100507 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100508 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000509 help
510 Support for the StrongARM based Digital DNARD machine, also known
511 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512
513config ARCH_LH7A40X
514 bool "Sharp LH7A40X"
Russell King4ba3f7c2008-10-01 21:38:23 +0100515 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
516 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517 help
518 Say Y here for systems based on one of the Sharp LH7A40X
519 System on a Chip processors. These CPUs include an ARM922T
520 core with a wide array of integrated devices for
521 hand-held and low-power applications.
522
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100523config ARCH_DAVINCI
524 bool "TI DaVinci"
525 select GENERIC_TIME
526 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100527 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700528 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700529 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100530 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100531 help
532 Support for TI's DaVinci platform.
533
Russell King3b938be2007-05-12 11:25:44 +0100534config ARCH_OMAP
535 bool "TI OMAP"
536 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700537 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700538 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100539 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700540 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100541 help
542 Support for TI's OMAP platform (OMAP1 and OMAP2).
543
Brian Swetland1637de02008-09-09 07:13:33 -0700544config ARCH_MSM
545 bool "Qualcomm MSM"
Brian Swetland30421022007-11-26 04:11:43 -0800546 select GENERIC_TIME
547 select GENERIC_CLOCKEVENTS
548 help
Brian Swetland1637de02008-09-09 07:13:33 -0700549 Support for Qualcomm MSM7K based systems. This runs on the ARM11
550 apps processor of the MSM7K and depends on a shared memory
Brian Swetland30421022007-11-26 04:11:43 -0800551 interface to the ARM9 modem processor which runs the baseband stack
552 and controls some vital subsystems (clock and power control, etc).
Brian Swetland30421022007-11-26 04:11:43 -0800553
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554endchoice
555
556source "arch/arm/mach-clps711x/Kconfig"
557
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000558source "arch/arm/mach-ep93xx/Kconfig"
559
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560source "arch/arm/mach-footbridge/Kconfig"
561
562source "arch/arm/mach-integrator/Kconfig"
563
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100564source "arch/arm/mach-iop32x/Kconfig"
565
566source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567
Dan Williams285f5fa2006-12-07 02:59:39 +0100568source "arch/arm/mach-iop13xx/Kconfig"
569
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570source "arch/arm/mach-ixp4xx/Kconfig"
571
572source "arch/arm/mach-ixp2000/Kconfig"
573
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100574source "arch/arm/mach-ixp23xx/Kconfig"
575
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200576source "arch/arm/mach-loki/Kconfig"
577
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200578source "arch/arm/mach-mv78xx0/Kconfig"
579
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580source "arch/arm/mach-pxa/Kconfig"
581
582source "arch/arm/mach-sa1100/Kconfig"
583
Tony Lindgrend48af152005-07-10 19:58:17 +0100584source "arch/arm/plat-omap/Kconfig"
585
586source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587
Tony Lindgren1dbae812005-11-10 14:26:51 +0000588source "arch/arm/mach-omap2/Kconfig"
589
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400590source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400591
Saeed Bishara651c74c2008-06-22 22:45:06 +0200592source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593
Ben Dooksa21765a2007-02-11 18:31:01 +0100594source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100595source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100596
597if ARCH_S3C2410
598source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100600source "arch/arm/mach-s3c2412/Kconfig"
601source "arch/arm/mach-s3c2440/Kconfig"
602source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100603source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100604endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605
606source "arch/arm/mach-lh7a40x/Kconfig"
607
608source "arch/arm/mach-imx/Kconfig"
609
610source "arch/arm/mach-h720x/Kconfig"
611
612source "arch/arm/mach-versatile/Kconfig"
613
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100614source "arch/arm/mach-aaec2000/Kconfig"
615
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000616source "arch/arm/mach-realview/Kconfig"
617
Andrew Victor9d041262007-02-05 11:42:07 +0100618source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000619
Quinn Jensen52c543f2007-07-09 22:06:53 +0100620source "arch/arm/plat-mxc/Kconfig"
621
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100622source "arch/arm/mach-netx/Kconfig"
623
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100624source "arch/arm/mach-ns9xxx/Kconfig"
625
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100626source "arch/arm/mach-davinci/Kconfig"
627
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100628source "arch/arm/mach-ks8695/Kconfig"
629
Brian Swetland9e73c842007-11-26 04:12:13 -0800630source "arch/arm/mach-msm/Kconfig"
631
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632# Definitions to make life easier
633config ARCH_ACORN
634 bool
635
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100636config PLAT_IOP
637 bool
638
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400639config PLAT_ORION
640 bool
641
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642source arch/arm/mm/Kconfig
643
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100644config IWMMXT
645 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100646 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700647 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100648 help
649 Enable support for iWMMXt context switching at run time if
650 running on a CPU that supports it.
651
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
653config XSCALE_PMU
654 bool
655 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
656 default y
657
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100658if !MMU
659source "arch/arm/Kconfig-nommu"
660endif
661
Linus Torvalds1da177e2005-04-16 15:20:36 -0700662endmenu
663
664source "arch/arm/common/Kconfig"
665
666config FORCE_MAX_ZONEORDER
667 int
668 depends on SA1111
669 default "9"
670
671menu "Bus support"
672
673config ARM_AMBA
674 bool
675
676config ISA
677 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 help
679 Find out whether you have ISA slots on your motherboard. ISA is the
680 name of a bus system, i.e. the way the CPU talks to the other stuff
681 inside your box. Other bus systems are PCI, EISA, MicroChannel
682 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
683 newer boards don't support it. If you have ISA, say Y, otherwise N.
684
Russell King065909b2006-01-04 15:44:16 +0000685# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686config ISA_DMA
687 bool
Russell King065909b2006-01-04 15:44:16 +0000688 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689
Russell King065909b2006-01-04 15:44:16 +0000690# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100691config ISA_DMA_API
692 bool
Al Viro5cae8412005-05-04 05:39:22 +0100693
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100695 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696 help
697 Find out whether you have a PCI motherboard. PCI is the name of a
698 bus system, i.e. the way the CPU talks to the other stuff inside
699 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
700 VESA. If you have PCI, say Y, otherwise N.
701
Matthew Wilcox36e23592007-07-10 10:54:40 -0600702config PCI_SYSCALL
703 def_bool PCI
704
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705# Select the host bridge type
706config PCI_HOST_VIA82C505
707 bool
708 depends on PCI && ARCH_SHARK
709 default y
710
Mike Rapoporta0113a92007-11-25 08:55:34 +0100711config PCI_HOST_ITE8152
712 bool
713 depends on PCI && MACH_ARMCORE
714 default y
715 select DMABOUNCE
716
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717source "drivers/pci/Kconfig"
718
719source "drivers/pcmcia/Kconfig"
720
721endmenu
722
723menu "Kernel Features"
724
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100725source "kernel/time/Kconfig"
726
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727config SMP
728 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100729 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Jens Axboef6dd9fa2008-06-10 20:48:30 +0200730 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731 help
732 This enables support for systems with more than one CPU. If you have
733 a system with only one CPU, like most personal computers, say N. If
734 you have a system with more than one CPU, say Y.
735
736 If you say N here, the kernel will run on single and multiprocessor
737 machines, but will use only one CPU of a multiprocessor machine. If
738 you say Y here, the kernel will run on many, but not all, single
739 processor machines. On a single processor machine, the kernel will
740 run faster if you say N here.
741
Adrian Bunk03502fa2008-02-03 15:50:21 +0200742 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
744 <http://www.linuxdoc.org/docs.html#howto>.
745
746 If you don't know what to do here, say N.
747
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100748choice
749 prompt "Memory split"
750 default VMSPLIT_3G
751 help
752 Select the desired split between kernel and user memory.
753
754 If you are not absolutely sure what you are doing, leave this
755 option alone!
756
757 config VMSPLIT_3G
758 bool "3G/1G user/kernel split"
759 config VMSPLIT_2G
760 bool "2G/2G user/kernel split"
761 config VMSPLIT_1G
762 bool "1G/3G user/kernel split"
763endchoice
764
765config PAGE_OFFSET
766 hex
767 default 0x40000000 if VMSPLIT_1G
768 default 0x80000000 if VMSPLIT_2G
769 default 0xC0000000
770
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771config NR_CPUS
772 int "Maximum number of CPUs (2-32)"
773 range 2 32
774 depends on SMP
775 default "4"
776
Russell Kinga054a812005-11-02 22:24:33 +0000777config HOTPLUG_CPU
778 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
779 depends on SMP && HOTPLUG && EXPERIMENTAL
780 help
781 Say Y here to experiment with turning CPUs off and on. CPUs
782 can be controlled through /sys/devices/system/cpu.
783
Russell King37ee16a2005-11-08 19:08:05 +0000784config LOCAL_TIMERS
785 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100786 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000787 default y
788 help
789 Enable support for local timers on SMP platforms, rather then the
790 legacy IPI broadcast method. Local timers allows the system
791 accounting to be spread across the timer interval, preventing a
792 "thundering herd" at every timer tick.
793
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794config PREEMPT
795 bool "Preemptible Kernel (EXPERIMENTAL)"
796 depends on EXPERIMENTAL
797 help
798 This option reduces the latency of the kernel when reacting to
799 real-time or interactive events by allowing a low priority process to
800 be preempted even if it is in kernel mode executing a system call.
801 This allows applications to run more reliably even when the system is
802 under load.
803
804 Say Y here if you are building a kernel for a desktop, embedded
805 or real-time system. Say N if you are unsure.
806
Russell Kingf8065812006-03-02 22:41:59 +0000807config HZ
808 int
809 default 128 if ARCH_L7200
810 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000811 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100812 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000813 default 100
814
Nicolas Pitre704bdda02006-01-14 16:33:50 +0000815config AEABI
816 bool "Use the ARM EABI to compile the kernel"
817 help
818 This option allows for the kernel to be compiled using the latest
819 ARM ABI (aka EABI). This is only useful if you are using a user
820 space environment that is also compiled with EABI.
821
822 Since there are major incompatibilities between the legacy ABI and
823 EABI, especially with regard to structure member alignment, this
824 option also changes the kernel syscall calling convention to
825 disambiguate both ABIs and allow for backward compatibility support
826 (selected with CONFIG_OABI_COMPAT).
827
828 To use this you need GCC version 4.0.0 or later.
829
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000830config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000831 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000832 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000833 default y
834 help
835 This option preserves the old syscall interface along with the
836 new (ARM EABI) one. It also provides a compatibility layer to
837 intercept syscalls that have structure arguments which layout
838 in memory differs between the legacy ABI and the new ARM EABI
839 (only for non "thumb" binaries). This option adds a tiny
840 overhead to all syscalls and produces a slightly larger kernel.
841 If you know you'll be using only pure EABI user space then you
842 can say N here. If this option is not selected and you attempt
843 to execute a legacy ABI binary then the result will be
844 UNPREDICTABLE (in fact it can be predicted that it won't work
845 at all). If in doubt say Y.
846
Mel Gormane80d6a22008-08-14 11:10:14 +0100847config ARCH_FLATMEM_HAS_HOLES
848 bool
849 default y
850 depends on FLATMEM
851
Russell King07a2f732008-10-01 21:39:58 +0100852# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -0700853config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855
Russell King05944d72006-11-30 20:43:51 +0000856config ARCH_SPARSEMEM_ENABLE
857 bool
858
Russell King07a2f732008-10-01 21:39:58 +0100859config ARCH_SPARSEMEM_DEFAULT
860 def_bool ARCH_SPARSEMEM_ENABLE
861
Russell King05944d72006-11-30 20:43:51 +0000862config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +0100863 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +0000864
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700865config NODES_SHIFT
866 int
867 default "4" if ARCH_LH7A40X
868 default "2"
869 depends on NEED_MULTIPLE_NODES
870
Dave Hansen3f22ab22005-06-23 00:07:43 -0700871source "mm/Kconfig"
872
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873config LEDS
874 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +0100875 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700876 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
877 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
878 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000879 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +0100880 ARCH_AT91 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400881 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882 help
883 If you say Y here, the LEDs on your machine will be used
884 to provide useful information about your current system status.
885
886 If you are compiling a kernel for a NetWinder or EBSA-285, you will
887 be able to select which LEDs are active using the options below. If
888 you are compiling a kernel for the EBSA-110 or the LART however, the
889 red LED will simply flash regularly to indicate that the system is
890 still functional. It is safe to say Y here if you have a CATS
891 system, but the driver will do nothing.
892
893config LEDS_TIMER
894 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700895 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
896 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100898 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899 default y if ARCH_EBSA110
900 help
901 If you say Y here, one of the system LEDs (the green one on the
902 NetWinder, the amber one on the EBSA285, or the red one on the LART)
903 will flash regularly to indicate that the system is still
904 operational. This is mainly useful to kernel hackers who are
905 debugging unstable kernels.
906
907 The LART uses the same LED for both Timer LED and CPU usage LED
908 functions. You may choose to use both, but the Timer LED function
909 will overrule the CPU usage LED.
910
911config LEDS_CPU
912 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700913 !ARCH_OMAP) \
914 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
915 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916 depends on LEDS
917 help
918 If you say Y here, the red LED will be used to give a good real
919 time indication of CPU usage, by lighting whenever the idle task
920 is not currently executing.
921
922 The LART uses the same LED for both Timer LED and CPU usage LED
923 functions. You may choose to use both, but the Timer LED function
924 will overrule the CPU usage LED.
925
926config ALIGNMENT_TRAP
927 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900928 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929 default y if !ARCH_EBSA110
930 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200931 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700932 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
933 address divisible by 4. On 32-bit ARM processors, these non-aligned
934 fetch/store instructions will be emulated in software if you say
935 here, which has a severe performance impact. This is necessary for
936 correct operation of some network protocols. With an IP-only
937 configuration it is safe to say N, otherwise say Y.
938
939endmenu
940
941menu "Boot options"
942
943# Compressed boot loader in ROM. Yes, we really want to ask about
944# TEXT and BSS so we preserve their values in the config files.
945config ZBOOT_ROM_TEXT
946 hex "Compressed ROM boot loader base address"
947 default "0"
948 help
949 The physical address at which the ROM-able zImage is to be
950 placed in the target. Platforms which normally make use of
951 ROM-able zImage formats normally set this to a suitable
952 value in their defconfig file.
953
954 If ZBOOT_ROM is not enabled, this has no effect.
955
956config ZBOOT_ROM_BSS
957 hex "Compressed ROM boot loader BSS address"
958 default "0"
959 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100960 The base address of an area of read/write memory in the target
961 for the ROM-able zImage which must be available while the
962 decompressor is running. It must be large enough to hold the
963 entire decompressed kernel plus an additional 128 KiB.
964 Platforms which normally make use of ROM-able zImage formats
965 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966
967 If ZBOOT_ROM is not enabled, this has no effect.
968
969config ZBOOT_ROM
970 bool "Compressed boot loader in ROM/flash"
971 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
972 help
973 Say Y here if you intend to execute your compressed kernel image
974 (zImage) directly from ROM or flash. If unsure, say N.
975
976config CMDLINE
977 string "Default kernel command string"
978 default ""
979 help
980 On some architectures (EBSA110 and CATS), there is currently no way
981 for the boot loader to pass arguments to the kernel. For these
982 architectures, you should supply some command-line options at build
983 time by entering them here. As a minimum, you should specify the
984 memory size and the root device (e.g., mem=64M root=/dev/nfs).
985
986config XIP_KERNEL
987 bool "Kernel Execute-In-Place from ROM"
988 depends on !ZBOOT_ROM
989 help
990 Execute-In-Place allows the kernel to run from non-volatile storage
991 directly addressable by the CPU, such as NOR flash. This saves RAM
992 space since the text section of the kernel is not loaded from flash
993 to RAM. Read-write sections, such as the data section and stack,
994 are still copied to RAM. The XIP kernel is not compressed since
995 it has to run directly from flash, so it will take more space to
996 store it. The flash address used to link the kernel object files,
997 and for storing it, is configuration dependent. Therefore, if you
998 say Y here, you must know the proper physical address where to
999 store the kernel image depending on your own flash memory usage.
1000
1001 Also note that the make target becomes "make xipImage" rather than
1002 "make zImage" or "make Image". The final kernel binary to put in
1003 ROM memory will be arch/arm/boot/xipImage.
1004
1005 If unsure, say N.
1006
1007config XIP_PHYS_ADDR
1008 hex "XIP Kernel Physical Location"
1009 depends on XIP_KERNEL
1010 default "0x00080000"
1011 help
1012 This is the physical address in your flash memory the kernel will
1013 be linked for and stored to. This address is dependent on your
1014 own flash usage.
1015
Richard Purdiec587e4a2007-02-06 21:29:00 +01001016config KEXEC
1017 bool "Kexec system call (EXPERIMENTAL)"
1018 depends on EXPERIMENTAL
1019 help
1020 kexec is a system call that implements the ability to shutdown your
1021 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001022 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001023 you can start any kernel with it, not just Linux.
1024
1025 It is an ongoing process to be certain the hardware in a machine
1026 is properly shutdown, so do not be surprised if this code does not
1027 initially work for you. It may help to enable device hotplugging
1028 support.
1029
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001030config ATAGS_PROC
1031 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001032 depends on KEXEC
1033 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001034 help
1035 Should the atags used to boot the kernel be exported in an "atags"
1036 file in procfs. Useful with kexec.
1037
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038endmenu
1039
Russell Kingac9d7ef2008-08-18 17:26:00 +01001040menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041
Russell Kingac9d7ef2008-08-18 17:26:00 +01001042if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043
1044source "drivers/cpufreq/Kconfig"
1045
1046config CPU_FREQ_SA1100
1047 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +01001048 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 -07001049 default y
1050
1051config CPU_FREQ_SA1110
1052 bool
1053 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1054 default y
1055
1056config CPU_FREQ_INTEGRATOR
1057 tristate "CPUfreq driver for ARM Integrator CPUs"
1058 depends on ARCH_INTEGRATOR && CPU_FREQ
1059 default y
1060 help
1061 This enables the CPUfreq driver for ARM Integrator CPUs.
1062
1063 For details, take a look at <file:Documentation/cpu-freq>.
1064
1065 If in doubt, say Y.
1066
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +01001067config CPU_FREQ_IMX
1068 tristate "CPUfreq driver for i.MX CPUs"
1069 depends on ARCH_IMX && CPU_FREQ
1070 default n
1071 help
1072 This enables the CPUfreq driver for i.MX CPUs.
1073
1074 If in doubt, say N.
1075
Russell King9e2697f2007-12-14 13:30:14 +00001076config CPU_FREQ_PXA
1077 bool
1078 depends on CPU_FREQ && ARCH_PXA && PXA25x
1079 default y
1080 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1081
Linus Torvalds1da177e2005-04-16 15:20:36 -07001082endif
1083
Russell Kingac9d7ef2008-08-18 17:26:00 +01001084source "drivers/cpuidle/Kconfig"
1085
1086endmenu
1087
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088menu "Floating point emulation"
1089
1090comment "At least one emulation must be selected"
1091
1092config FPE_NWFPE
1093 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001094 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095 ---help---
1096 Say Y to include the NWFPE floating point emulator in the kernel.
1097 This is necessary to run most binaries. Linux does not currently
1098 support floating point hardware so you need to say Y here even if
1099 your machine has an FPA or floating point co-processor podule.
1100
1101 You may say N here if you are going to load the Acorn FPEmulator
1102 early in the bootup.
1103
1104config FPE_NWFPE_XP
1105 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001106 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001107 help
1108 Say Y to include 80-bit support in the kernel floating-point
1109 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1110 Note that gcc does not generate 80-bit operations by default,
1111 so in most cases this option only enlarges the size of the
1112 floating point emulator without any good reason.
1113
1114 You almost surely want to say N here.
1115
1116config FPE_FASTFPE
1117 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001118 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119 ---help---
1120 Say Y here to include the FAST floating point emulator in the kernel.
1121 This is an experimental much faster emulator which now also has full
1122 precision for the mantissa. It does not support any exceptions.
1123 It is very simple, and approximately 3-6 times faster than NWFPE.
1124
1125 It should be sufficient for most programs. It may be not suitable
1126 for scientific calculations, but you have to check this for yourself.
1127 If you do not feel you need a faster FP emulation you should better
1128 choose NWFPE.
1129
1130config VFP
1131 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001132 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133 help
1134 Say Y to include VFP support code in the kernel. This is needed
1135 if your hardware includes a VFP unit.
1136
1137 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1138 release notes and additional status information.
1139
1140 Say N if your target does not have VFP hardware.
1141
Catalin Marinas25ebee02007-09-25 15:22:24 +01001142config VFPv3
1143 bool
1144 depends on VFP
1145 default y if CPU_V7
1146
Catalin Marinasb5872db2008-01-10 19:16:17 +01001147config NEON
1148 bool "Advanced SIMD (NEON) Extension support"
1149 depends on VFPv3 && CPU_V7
1150 help
1151 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1152 Extension.
1153
Linus Torvalds1da177e2005-04-16 15:20:36 -07001154endmenu
1155
1156menu "Userspace binary formats"
1157
1158source "fs/Kconfig.binfmt"
1159
1160config ARTHUR
1161 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001162 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001163 help
1164 Say Y here to include the kernel code necessary if you want to run
1165 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1166 experimental; if this sounds frightening, say N and sleep in peace.
1167 You can also say M here to compile this support as a module (which
1168 will be called arthur).
1169
1170endmenu
1171
1172menu "Power management options"
1173
Russell Kingeceab4a2005-11-15 11:31:41 +00001174source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001175
Johannes Bergf4cb5702007-12-08 02:14:00 +01001176config ARCH_SUSPEND_POSSIBLE
1177 def_bool y
1178
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179endmenu
1180
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001181source "net/Kconfig"
1182
Linus Torvalds1da177e2005-04-16 15:20:36 -07001183menu "Device Drivers"
1184
1185source "drivers/base/Kconfig"
1186
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001187source "drivers/connector/Kconfig"
1188
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001189if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190source "drivers/mtd/Kconfig"
1191endif
1192
1193source "drivers/parport/Kconfig"
1194
1195source "drivers/pnp/Kconfig"
1196
1197source "drivers/block/Kconfig"
1198
Russell King58273e52007-10-12 22:24:09 +01001199# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1200
1201source "drivers/misc/Kconfig"
1202
Linus Torvalds1da177e2005-04-16 15:20:36 -07001203source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001204
1205source "drivers/scsi/Kconfig"
1206
Martin Michlmayreb370f02006-11-17 00:14:35 +01001207source "drivers/ata/Kconfig"
1208
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209source "drivers/md/Kconfig"
1210
1211source "drivers/message/fusion/Kconfig"
1212
1213source "drivers/ieee1394/Kconfig"
1214
1215source "drivers/message/i2o/Kconfig"
1216
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001217source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001218
1219source "drivers/isdn/Kconfig"
1220
1221# input before char - char/joystick depends on it. As does USB.
1222
1223source "drivers/input/Kconfig"
1224
1225source "drivers/char/Kconfig"
1226
1227source "drivers/i2c/Kconfig"
1228
David Brownell8ae12a02006-01-08 13:34:19 -08001229source "drivers/spi/Kconfig"
1230
David Brownella9c5fff2008-02-04 22:28:17 -08001231source "drivers/gpio/Kconfig"
1232
Alessandro Zummo04916c02006-03-10 22:30:01 +00001233source "drivers/w1/Kconfig"
1234
Russell King58273e52007-10-12 22:24:09 +01001235source "drivers/power/Kconfig"
1236
Jean Delvaread2f9312005-07-02 18:15:49 +02001237source "drivers/hwmon/Kconfig"
1238
Russell Kingac9d7ef2008-08-18 17:26:00 +01001239source "drivers/thermal/Kconfig"
1240
Russell King70dfa3f2007-11-07 14:13:35 +00001241source "drivers/watchdog/Kconfig"
1242
Russell King58273e52007-10-12 22:24:09 +01001243source "drivers/ssb/Kconfig"
1244
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245#source "drivers/l3/Kconfig"
1246
Russell Kinga4e137a2005-08-18 10:06:59 +01001247source "drivers/mfd/Kconfig"
1248
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249source "drivers/media/Kconfig"
1250
1251source "drivers/video/Kconfig"
1252
1253source "sound/Kconfig"
1254
Sascha Hauerc2dade52006-12-12 10:32:42 +01001255source "drivers/hid/Kconfig"
1256
Linus Torvalds1da177e2005-04-16 15:20:36 -07001257source "drivers/usb/Kconfig"
1258
Greg Kroah-Hartman2f86c3e2008-09-17 16:34:11 +01001259source "drivers/uwb/Kconfig"
1260
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261source "drivers/mmc/Kconfig"
1262
Russell Kingac9d7ef2008-08-18 17:26:00 +01001263source "drivers/memstick/Kconfig"
1264
1265source "drivers/accessibility/Kconfig"
1266
Russell King58273e52007-10-12 22:24:09 +01001267source "drivers/leds/Kconfig"
1268
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001269source "drivers/rtc/Kconfig"
1270
Dan Williams58168152007-01-02 11:10:43 -07001271source "drivers/dma/Kconfig"
1272
Dan Williamsabf07b12008-01-18 23:26:10 +01001273source "drivers/dca/Kconfig"
1274
Russell Kingac9d7ef2008-08-18 17:26:00 +01001275source "drivers/auxdisplay/Kconfig"
1276
Liam Girdwoodba7e4762008-04-30 17:13:42 +01001277source "drivers/regulator/Kconfig"
1278
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001279source "drivers/uio/Kconfig"
1280
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281endmenu
1282
1283source "fs/Kconfig"
1284
Linus Torvalds1da177e2005-04-16 15:20:36 -07001285source "arch/arm/Kconfig.debug"
1286
1287source "security/Kconfig"
1288
1289source "crypto/Kconfig"
1290
1291source "lib/Kconfig"