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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
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100213 select ICST525
214 help
215 Support for ARM's Integrator platform.
216
217config ARCH_REALVIEW
218 bool "ARM Ltd. RealView family"
219 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700220 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100221 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100222 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100223 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100224 help
225 This enables support for ARM Ltd RealView boards.
226
227config ARCH_VERSATILE
228 bool "ARM Ltd. Versatile family"
229 select ARM_AMBA
230 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700231 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100233 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100234 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100235 help
236 This enables support for ARM Ltd Versatile board.
237
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100238config ARCH_AT91
239 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800240 select GENERIC_GPIO
David Brownell93686ae2008-07-28 15:46:22 -0700241 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100242 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100243 This enables support for systems based on the Atmel AT91RM9200,
244 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100245
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100247 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100249 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000250 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100251 select ARCH_SPARSEMEM_ENABLE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000252 help
253 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254
255config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100256 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000257 help
258 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260config ARCH_EBSA110
261 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100262 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000263 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264 help
265 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000266 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 Ethernet interface, two PCMCIA sockets, two serial ports and a
268 parallel port.
269
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000270config ARCH_EP93XX
271 bool "EP93xx-based"
272 select ARM_AMBA
273 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100274 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700275 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700276 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000277 help
278 This enables support for the Cirrus EP93xx series of CPUs.
279
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280config ARCH_FOOTBRIDGE
281 bool "FootBridge"
282 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000283 help
284 Support for systems based on the DC21285 companion chip
285 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100287config ARCH_NETX
288 bool "Hilscher NetX based"
289 select ARM_VIC
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100290 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000291 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100292 This enables support for systems based on the Hilscher NetX Soc
293
294config ARCH_H720X
295 bool "Hynix HMS720x-based"
296 select ISA_DMA_API
297 help
298 This enables support for systems based on the Hynix HMS720x
299
300config ARCH_IMX
301 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100302 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100303 select GENERIC_TIME
304 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100305 help
306 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307
Russell King3b938be2007-05-12 11:25:44 +0100308config ARCH_IOP13XX
309 bool "IOP13xx-based"
310 depends on MMU
311 select PLAT_IOP
312 select PCI
313 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100314 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100315 help
316 Support for Intel's IOP13XX (XScale) family of processors.
317
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100318config ARCH_IOP32X
319 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100320 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100321 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100322 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100323 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100324 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000325 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100326 Support for Intel's 80219 and IOP32X (XScale) family of
327 processors.
328
329config ARCH_IOP33X
330 bool "IOP33x-based"
331 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100332 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100333 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100334 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100335 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100336 help
337 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338
Russell King3b938be2007-05-12 11:25:44 +0100339config ARCH_IXP23XX
340 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100341 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100342 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100343 help
Russell King3b938be2007-05-12 11:25:44 +0100344 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345
346config ARCH_IXP2000
347 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100348 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100349 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000350 help
351 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352
Russell King3b938be2007-05-12 11:25:44 +0100353config ARCH_IXP4XX
354 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100355 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100356 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100357 select GENERIC_TIME
358 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100359 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100360 help
Russell King3b938be2007-05-12 11:25:44 +0100361 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100362
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363config ARCH_L7200
364 bool "LinkUp-L7200"
365 select FIQ
366 help
367 Say Y here if you intend to run this kernel on a LinkUp Systems
368 L7200 Software Development Board which uses an ARM720T processor.
369 Information on this board can be obtained at:
370
371 <http://www.linkupsys.com/>
372
373 If you have any questions or comments about the Linux kernel port
374 to this board, send e-mail to <sjhill@cotw.com>.
375
Saeed Bishara651c74c2008-06-22 22:45:06 +0200376config ARCH_KIRKWOOD
377 bool "Marvell Kirkwood"
378 select PCI
379 select GENERIC_TIME
380 select GENERIC_CLOCKEVENTS
381 select PLAT_ORION
382 help
383 Support for the following Marvell Kirkwood series SoCs:
384 88F6180, 88F6192 and 88F6281.
385
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100386config ARCH_KS8695
387 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100388 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100389 help
390 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
391 System-on-Chip devices.
392
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100393config ARCH_NS9XXX
394 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100395 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100396 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100397 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700398 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100399 help
400 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
401 System.
402
403 <http://www.digi.com/products/microprocessors/index.jsp>
404
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200405config ARCH_LOKI
406 bool "Marvell Loki (88RC8480)"
407 select GENERIC_TIME
408 select GENERIC_CLOCKEVENTS
409 select PLAT_ORION
410 help
411 Support for the Marvell Loki (88RC8480) SoC.
412
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200413config ARCH_MV78XX0
414 bool "Marvell MV78xx0"
415 select PCI
416 select GENERIC_TIME
417 select GENERIC_CLOCKEVENTS
418 select PLAT_ORION
419 help
420 Support for the following Marvell MV78xx0 series SoCs:
421 MV781x0, MV782x0.
422
Quinn Jensen52c543f2007-07-09 22:06:53 +0100423config ARCH_MXC
424 bool "Freescale MXC/iMX-based"
Juergen Beisertd0f349f2008-07-05 10:02:50 +0200425 select GENERIC_TIME
426 select GENERIC_CLOCKEVENTS
Quinn Jensen52c543f2007-07-09 22:06:53 +0100427 select ARCH_MTD_XIP
Juergen Beisert07bd1a62008-07-05 10:02:49 +0200428 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100429 select ARCH_REQUIRE_GPIOLIB
Quinn Jensen52c543f2007-07-09 22:06:53 +0100430 help
431 Support for Freescale MXC/iMX-based family of processors
432
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400433config ARCH_ORION5X
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400434 bool "Marvell Orion"
435 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400436 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400437 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400438 select GENERIC_TIME
439 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400440 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400441 help
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400442 Support for the following Marvell Orion 5x series SoCs:
Lennert Buytenhekd2b2a6b2008-05-31 08:30:40 +0200443 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
Lennert Buytenhekd323ade2008-08-29 06:55:06 +0200444 Orion-2 (5281), Orion-1-90 (6183).
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400445
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100446config ARCH_PNX4008
447 bool "Philips Nexperia PNX4008 Mobile"
David Brownell9483a572008-07-23 21:26:48 -0700448 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100449 help
450 This enables support for Philips PNX4008 mobile platform.
451
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700453 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100454 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500455 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800456 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700457 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700458 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100459 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100460 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000461 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000462 help
eric miao2c8086a2007-09-11 19:13:17 -0700463 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464
465config ARCH_RPC
466 bool "RiscPC"
467 select ARCH_ACORN
468 select FIQ
469 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100470 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100471 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000472 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000473 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100474 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475 help
476 On the Acorn Risc-PC, Linux can support the internal IDE disk and
477 CD-ROM interface, serial and parallel port, and the floppy drive.
478
479config ARCH_SA1100
480 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100481 select ISA
Russell King05944d72006-11-30 20:43:51 +0000482 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500483 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800484 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000485 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100486 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700487 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100488 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700489 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000490 help
491 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492
493config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100494 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800495 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700496 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497 help
498 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
499 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000500 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501
502config ARCH_SHARK
503 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100504 select ISA
505 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100506 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100507 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000508 help
509 Support for the StrongARM based Digital DNARD machine, also known
510 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511
512config ARCH_LH7A40X
513 bool "Sharp LH7A40X"
Russell King4ba3f7c2008-10-01 21:38:23 +0100514 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
515 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516 help
517 Say Y here for systems based on one of the Sharp LH7A40X
518 System on a Chip processors. These CPUs include an ARM922T
519 core with a wide array of integrated devices for
520 hand-held and low-power applications.
521
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100522config ARCH_DAVINCI
523 bool "TI DaVinci"
524 select GENERIC_TIME
525 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100526 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700527 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700528 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100529 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100530 help
531 Support for TI's DaVinci platform.
532
Russell King3b938be2007-05-12 11:25:44 +0100533config ARCH_OMAP
534 bool "TI OMAP"
535 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700536 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700537 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100538 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700539 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100540 help
541 Support for TI's OMAP platform (OMAP1 and OMAP2).
542
Brian Swetland1637de02008-09-09 07:13:33 -0700543config ARCH_MSM
544 bool "Qualcomm MSM"
Brian Swetland30421022007-11-26 04:11:43 -0800545 select GENERIC_TIME
546 select GENERIC_CLOCKEVENTS
547 help
Brian Swetland1637de02008-09-09 07:13:33 -0700548 Support for Qualcomm MSM7K based systems. This runs on the ARM11
549 apps processor of the MSM7K and depends on a shared memory
Brian Swetland30421022007-11-26 04:11:43 -0800550 interface to the ARM9 modem processor which runs the baseband stack
551 and controls some vital subsystems (clock and power control, etc).
Brian Swetland30421022007-11-26 04:11:43 -0800552
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553endchoice
554
555source "arch/arm/mach-clps711x/Kconfig"
556
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000557source "arch/arm/mach-ep93xx/Kconfig"
558
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559source "arch/arm/mach-footbridge/Kconfig"
560
561source "arch/arm/mach-integrator/Kconfig"
562
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100563source "arch/arm/mach-iop32x/Kconfig"
564
565source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566
Dan Williams285f5fa2006-12-07 02:59:39 +0100567source "arch/arm/mach-iop13xx/Kconfig"
568
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569source "arch/arm/mach-ixp4xx/Kconfig"
570
571source "arch/arm/mach-ixp2000/Kconfig"
572
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100573source "arch/arm/mach-ixp23xx/Kconfig"
574
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200575source "arch/arm/mach-loki/Kconfig"
576
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200577source "arch/arm/mach-mv78xx0/Kconfig"
578
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579source "arch/arm/mach-pxa/Kconfig"
580
581source "arch/arm/mach-sa1100/Kconfig"
582
Tony Lindgrend48af152005-07-10 19:58:17 +0100583source "arch/arm/plat-omap/Kconfig"
584
585source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586
Tony Lindgren1dbae812005-11-10 14:26:51 +0000587source "arch/arm/mach-omap2/Kconfig"
588
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400589source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400590
Saeed Bishara651c74c2008-06-22 22:45:06 +0200591source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592
Ben Dooksa21765a2007-02-11 18:31:01 +0100593source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100594source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100595
596if ARCH_S3C2410
597source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100599source "arch/arm/mach-s3c2412/Kconfig"
600source "arch/arm/mach-s3c2440/Kconfig"
601source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100602source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100603endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604
605source "arch/arm/mach-lh7a40x/Kconfig"
606
607source "arch/arm/mach-imx/Kconfig"
608
609source "arch/arm/mach-h720x/Kconfig"
610
611source "arch/arm/mach-versatile/Kconfig"
612
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100613source "arch/arm/mach-aaec2000/Kconfig"
614
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000615source "arch/arm/mach-realview/Kconfig"
616
Andrew Victor9d041262007-02-05 11:42:07 +0100617source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000618
Quinn Jensen52c543f2007-07-09 22:06:53 +0100619source "arch/arm/plat-mxc/Kconfig"
620
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100621source "arch/arm/mach-netx/Kconfig"
622
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100623source "arch/arm/mach-ns9xxx/Kconfig"
624
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100625source "arch/arm/mach-davinci/Kconfig"
626
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100627source "arch/arm/mach-ks8695/Kconfig"
628
Brian Swetland9e73c842007-11-26 04:12:13 -0800629source "arch/arm/mach-msm/Kconfig"
630
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631# Definitions to make life easier
632config ARCH_ACORN
633 bool
634
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100635config PLAT_IOP
636 bool
637
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400638config PLAT_ORION
639 bool
640
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641source arch/arm/mm/Kconfig
642
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100643config IWMMXT
644 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100645 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700646 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100647 help
648 Enable support for iWMMXt context switching at run time if
649 running on a CPU that supports it.
650
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
652config XSCALE_PMU
653 bool
654 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
655 default y
656
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100657if !MMU
658source "arch/arm/Kconfig-nommu"
659endif
660
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661endmenu
662
663source "arch/arm/common/Kconfig"
664
665config FORCE_MAX_ZONEORDER
666 int
667 depends on SA1111
668 default "9"
669
670menu "Bus support"
671
672config ARM_AMBA
673 bool
674
675config ISA
676 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 help
678 Find out whether you have ISA slots on your motherboard. ISA is the
679 name of a bus system, i.e. the way the CPU talks to the other stuff
680 inside your box. Other bus systems are PCI, EISA, MicroChannel
681 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
682 newer boards don't support it. If you have ISA, say Y, otherwise N.
683
Russell King065909b2006-01-04 15:44:16 +0000684# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685config ISA_DMA
686 bool
Russell King065909b2006-01-04 15:44:16 +0000687 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700688
Russell King065909b2006-01-04 15:44:16 +0000689# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100690config ISA_DMA_API
691 bool
Al Viro5cae8412005-05-04 05:39:22 +0100692
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100694 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695 help
696 Find out whether you have a PCI motherboard. PCI is the name of a
697 bus system, i.e. the way the CPU talks to the other stuff inside
698 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
699 VESA. If you have PCI, say Y, otherwise N.
700
Matthew Wilcox36e23592007-07-10 10:54:40 -0600701config PCI_SYSCALL
702 def_bool PCI
703
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704# Select the host bridge type
705config PCI_HOST_VIA82C505
706 bool
707 depends on PCI && ARCH_SHARK
708 default y
709
Mike Rapoporta0113a92007-11-25 08:55:34 +0100710config PCI_HOST_ITE8152
711 bool
712 depends on PCI && MACH_ARMCORE
713 default y
714 select DMABOUNCE
715
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716source "drivers/pci/Kconfig"
717
718source "drivers/pcmcia/Kconfig"
719
720endmenu
721
722menu "Kernel Features"
723
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100724source "kernel/time/Kconfig"
725
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726config SMP
727 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100728 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Jens Axboef6dd9fa52008-06-10 20:48:30 +0200729 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730 help
731 This enables support for systems with more than one CPU. If you have
732 a system with only one CPU, like most personal computers, say N. If
733 you have a system with more than one CPU, say Y.
734
735 If you say N here, the kernel will run on single and multiprocessor
736 machines, but will use only one CPU of a multiprocessor machine. If
737 you say Y here, the kernel will run on many, but not all, single
738 processor machines. On a single processor machine, the kernel will
739 run faster if you say N here.
740
Adrian Bunk03502fa2008-02-03 15:50:21 +0200741 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
743 <http://www.linuxdoc.org/docs.html#howto>.
744
745 If you don't know what to do here, say N.
746
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100747choice
748 prompt "Memory split"
749 default VMSPLIT_3G
750 help
751 Select the desired split between kernel and user memory.
752
753 If you are not absolutely sure what you are doing, leave this
754 option alone!
755
756 config VMSPLIT_3G
757 bool "3G/1G user/kernel split"
758 config VMSPLIT_2G
759 bool "2G/2G user/kernel split"
760 config VMSPLIT_1G
761 bool "1G/3G user/kernel split"
762endchoice
763
764config PAGE_OFFSET
765 hex
766 default 0x40000000 if VMSPLIT_1G
767 default 0x80000000 if VMSPLIT_2G
768 default 0xC0000000
769
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770config NR_CPUS
771 int "Maximum number of CPUs (2-32)"
772 range 2 32
773 depends on SMP
774 default "4"
775
Russell Kinga054a812005-11-02 22:24:33 +0000776config HOTPLUG_CPU
777 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
778 depends on SMP && HOTPLUG && EXPERIMENTAL
779 help
780 Say Y here to experiment with turning CPUs off and on. CPUs
781 can be controlled through /sys/devices/system/cpu.
782
Russell King37ee16a2005-11-08 19:08:05 +0000783config LOCAL_TIMERS
784 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100785 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000786 default y
787 help
788 Enable support for local timers on SMP platforms, rather then the
789 legacy IPI broadcast method. Local timers allows the system
790 accounting to be spread across the timer interval, preventing a
791 "thundering herd" at every timer tick.
792
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793config PREEMPT
794 bool "Preemptible Kernel (EXPERIMENTAL)"
795 depends on EXPERIMENTAL
796 help
797 This option reduces the latency of the kernel when reacting to
798 real-time or interactive events by allowing a low priority process to
799 be preempted even if it is in kernel mode executing a system call.
800 This allows applications to run more reliably even when the system is
801 under load.
802
803 Say Y here if you are building a kernel for a desktop, embedded
804 or real-time system. Say N if you are unsure.
805
Russell Kingf8065812006-03-02 22:41:59 +0000806config HZ
807 int
808 default 128 if ARCH_L7200
809 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000810 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100811 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000812 default 100
813
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000814config AEABI
815 bool "Use the ARM EABI to compile the kernel"
816 help
817 This option allows for the kernel to be compiled using the latest
818 ARM ABI (aka EABI). This is only useful if you are using a user
819 space environment that is also compiled with EABI.
820
821 Since there are major incompatibilities between the legacy ABI and
822 EABI, especially with regard to structure member alignment, this
823 option also changes the kernel syscall calling convention to
824 disambiguate both ABIs and allow for backward compatibility support
825 (selected with CONFIG_OABI_COMPAT).
826
827 To use this you need GCC version 4.0.0 or later.
828
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000829config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000830 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000831 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000832 default y
833 help
834 This option preserves the old syscall interface along with the
835 new (ARM EABI) one. It also provides a compatibility layer to
836 intercept syscalls that have structure arguments which layout
837 in memory differs between the legacy ABI and the new ARM EABI
838 (only for non "thumb" binaries). This option adds a tiny
839 overhead to all syscalls and produces a slightly larger kernel.
840 If you know you'll be using only pure EABI user space then you
841 can say N here. If this option is not selected and you attempt
842 to execute a legacy ABI binary then the result will be
843 UNPREDICTABLE (in fact it can be predicted that it won't work
844 at all). If in doubt say Y.
845
Mel Gormane80d6a22008-08-14 11:10:14 +0100846config ARCH_FLATMEM_HAS_HOLES
847 bool
848 default y
849 depends on FLATMEM
850
Russell King07a2f732008-10-01 21:39:58 +0100851# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -0700852config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854
Russell King05944d72006-11-30 20:43:51 +0000855config ARCH_SPARSEMEM_ENABLE
856 bool
857
Russell King07a2f732008-10-01 21:39:58 +0100858config ARCH_SPARSEMEM_DEFAULT
859 def_bool ARCH_SPARSEMEM_ENABLE
860
Russell King05944d72006-11-30 20:43:51 +0000861config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +0100862 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +0000863
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700864config NODES_SHIFT
865 int
866 default "4" if ARCH_LH7A40X
867 default "2"
868 depends on NEED_MULTIPLE_NODES
869
Dave Hansen3f22ab22005-06-23 00:07:43 -0700870source "mm/Kconfig"
871
Linus Torvalds1da177e2005-04-16 15:20:36 -0700872config LEDS
873 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +0100874 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
876 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
877 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000878 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +0100879 ARCH_AT91 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400880 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881 help
882 If you say Y here, the LEDs on your machine will be used
883 to provide useful information about your current system status.
884
885 If you are compiling a kernel for a NetWinder or EBSA-285, you will
886 be able to select which LEDs are active using the options below. If
887 you are compiling a kernel for the EBSA-110 or the LART however, the
888 red LED will simply flash regularly to indicate that the system is
889 still functional. It is safe to say Y here if you have a CATS
890 system, but the driver will do nothing.
891
892config LEDS_TIMER
893 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700894 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
895 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100897 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898 default y if ARCH_EBSA110
899 help
900 If you say Y here, one of the system LEDs (the green one on the
901 NetWinder, the amber one on the EBSA285, or the red one on the LART)
902 will flash regularly to indicate that the system is still
903 operational. This is mainly useful to kernel hackers who are
904 debugging unstable kernels.
905
906 The LART uses the same LED for both Timer LED and CPU usage LED
907 functions. You may choose to use both, but the Timer LED function
908 will overrule the CPU usage LED.
909
910config LEDS_CPU
911 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700912 !ARCH_OMAP) \
913 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
914 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915 depends on LEDS
916 help
917 If you say Y here, the red LED will be used to give a good real
918 time indication of CPU usage, by lighting whenever the idle task
919 is not currently executing.
920
921 The LART uses the same LED for both Timer LED and CPU usage LED
922 functions. You may choose to use both, but the Timer LED function
923 will overrule the CPU usage LED.
924
925config ALIGNMENT_TRAP
926 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900927 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928 default y if !ARCH_EBSA110
929 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200930 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
932 address divisible by 4. On 32-bit ARM processors, these non-aligned
933 fetch/store instructions will be emulated in software if you say
934 here, which has a severe performance impact. This is necessary for
935 correct operation of some network protocols. With an IP-only
936 configuration it is safe to say N, otherwise say Y.
937
938endmenu
939
940menu "Boot options"
941
942# Compressed boot loader in ROM. Yes, we really want to ask about
943# TEXT and BSS so we preserve their values in the config files.
944config ZBOOT_ROM_TEXT
945 hex "Compressed ROM boot loader base address"
946 default "0"
947 help
948 The physical address at which the ROM-able zImage is to be
949 placed in the target. Platforms which normally make use of
950 ROM-able zImage formats normally set this to a suitable
951 value in their defconfig file.
952
953 If ZBOOT_ROM is not enabled, this has no effect.
954
955config ZBOOT_ROM_BSS
956 hex "Compressed ROM boot loader BSS address"
957 default "0"
958 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100959 The base address of an area of read/write memory in the target
960 for the ROM-able zImage which must be available while the
961 decompressor is running. It must be large enough to hold the
962 entire decompressed kernel plus an additional 128 KiB.
963 Platforms which normally make use of ROM-able zImage formats
964 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965
966 If ZBOOT_ROM is not enabled, this has no effect.
967
968config ZBOOT_ROM
969 bool "Compressed boot loader in ROM/flash"
970 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
971 help
972 Say Y here if you intend to execute your compressed kernel image
973 (zImage) directly from ROM or flash. If unsure, say N.
974
975config CMDLINE
976 string "Default kernel command string"
977 default ""
978 help
979 On some architectures (EBSA110 and CATS), there is currently no way
980 for the boot loader to pass arguments to the kernel. For these
981 architectures, you should supply some command-line options at build
982 time by entering them here. As a minimum, you should specify the
983 memory size and the root device (e.g., mem=64M root=/dev/nfs).
984
985config XIP_KERNEL
986 bool "Kernel Execute-In-Place from ROM"
987 depends on !ZBOOT_ROM
988 help
989 Execute-In-Place allows the kernel to run from non-volatile storage
990 directly addressable by the CPU, such as NOR flash. This saves RAM
991 space since the text section of the kernel is not loaded from flash
992 to RAM. Read-write sections, such as the data section and stack,
993 are still copied to RAM. The XIP kernel is not compressed since
994 it has to run directly from flash, so it will take more space to
995 store it. The flash address used to link the kernel object files,
996 and for storing it, is configuration dependent. Therefore, if you
997 say Y here, you must know the proper physical address where to
998 store the kernel image depending on your own flash memory usage.
999
1000 Also note that the make target becomes "make xipImage" rather than
1001 "make zImage" or "make Image". The final kernel binary to put in
1002 ROM memory will be arch/arm/boot/xipImage.
1003
1004 If unsure, say N.
1005
1006config XIP_PHYS_ADDR
1007 hex "XIP Kernel Physical Location"
1008 depends on XIP_KERNEL
1009 default "0x00080000"
1010 help
1011 This is the physical address in your flash memory the kernel will
1012 be linked for and stored to. This address is dependent on your
1013 own flash usage.
1014
Richard Purdiec587e4a2007-02-06 21:29:00 +01001015config KEXEC
1016 bool "Kexec system call (EXPERIMENTAL)"
1017 depends on EXPERIMENTAL
1018 help
1019 kexec is a system call that implements the ability to shutdown your
1020 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001021 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001022 you can start any kernel with it, not just Linux.
1023
1024 It is an ongoing process to be certain the hardware in a machine
1025 is properly shutdown, so do not be surprised if this code does not
1026 initially work for you. It may help to enable device hotplugging
1027 support.
1028
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001029config ATAGS_PROC
1030 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001031 depends on KEXEC
1032 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001033 help
1034 Should the atags used to boot the kernel be exported in an "atags"
1035 file in procfs. Useful with kexec.
1036
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037endmenu
1038
Russell Kingac9d7ef2008-08-18 17:26:00 +01001039menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040
Russell Kingac9d7ef2008-08-18 17:26:00 +01001041if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042
1043source "drivers/cpufreq/Kconfig"
1044
1045config CPU_FREQ_SA1100
1046 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +01001047 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 -07001048 default y
1049
1050config CPU_FREQ_SA1110
1051 bool
1052 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1053 default y
1054
1055config CPU_FREQ_INTEGRATOR
1056 tristate "CPUfreq driver for ARM Integrator CPUs"
1057 depends on ARCH_INTEGRATOR && CPU_FREQ
1058 default y
1059 help
1060 This enables the CPUfreq driver for ARM Integrator CPUs.
1061
1062 For details, take a look at <file:Documentation/cpu-freq>.
1063
1064 If in doubt, say Y.
1065
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +01001066config CPU_FREQ_IMX
1067 tristate "CPUfreq driver for i.MX CPUs"
1068 depends on ARCH_IMX && CPU_FREQ
1069 default n
1070 help
1071 This enables the CPUfreq driver for i.MX CPUs.
1072
1073 If in doubt, say N.
1074
Russell King9e2697f2007-12-14 13:30:14 +00001075config CPU_FREQ_PXA
1076 bool
1077 depends on CPU_FREQ && ARCH_PXA && PXA25x
1078 default y
1079 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1080
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081endif
1082
Russell Kingac9d7ef2008-08-18 17:26:00 +01001083source "drivers/cpuidle/Kconfig"
1084
1085endmenu
1086
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087menu "Floating point emulation"
1088
1089comment "At least one emulation must be selected"
1090
1091config FPE_NWFPE
1092 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001093 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094 ---help---
1095 Say Y to include the NWFPE floating point emulator in the kernel.
1096 This is necessary to run most binaries. Linux does not currently
1097 support floating point hardware so you need to say Y here even if
1098 your machine has an FPA or floating point co-processor podule.
1099
1100 You may say N here if you are going to load the Acorn FPEmulator
1101 early in the bootup.
1102
1103config FPE_NWFPE_XP
1104 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001105 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106 help
1107 Say Y to include 80-bit support in the kernel floating-point
1108 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1109 Note that gcc does not generate 80-bit operations by default,
1110 so in most cases this option only enlarges the size of the
1111 floating point emulator without any good reason.
1112
1113 You almost surely want to say N here.
1114
1115config FPE_FASTFPE
1116 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001117 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118 ---help---
1119 Say Y here to include the FAST floating point emulator in the kernel.
1120 This is an experimental much faster emulator which now also has full
1121 precision for the mantissa. It does not support any exceptions.
1122 It is very simple, and approximately 3-6 times faster than NWFPE.
1123
1124 It should be sufficient for most programs. It may be not suitable
1125 for scientific calculations, but you have to check this for yourself.
1126 If you do not feel you need a faster FP emulation you should better
1127 choose NWFPE.
1128
1129config VFP
1130 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001131 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132 help
1133 Say Y to include VFP support code in the kernel. This is needed
1134 if your hardware includes a VFP unit.
1135
1136 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1137 release notes and additional status information.
1138
1139 Say N if your target does not have VFP hardware.
1140
Catalin Marinas25ebee02007-09-25 15:22:24 +01001141config VFPv3
1142 bool
1143 depends on VFP
1144 default y if CPU_V7
1145
Catalin Marinasb5872db2008-01-10 19:16:17 +01001146config NEON
1147 bool "Advanced SIMD (NEON) Extension support"
1148 depends on VFPv3 && CPU_V7
1149 help
1150 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1151 Extension.
1152
Linus Torvalds1da177e2005-04-16 15:20:36 -07001153endmenu
1154
1155menu "Userspace binary formats"
1156
1157source "fs/Kconfig.binfmt"
1158
1159config ARTHUR
1160 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001161 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162 help
1163 Say Y here to include the kernel code necessary if you want to run
1164 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1165 experimental; if this sounds frightening, say N and sleep in peace.
1166 You can also say M here to compile this support as a module (which
1167 will be called arthur).
1168
1169endmenu
1170
1171menu "Power management options"
1172
Russell Kingeceab4a2005-11-15 11:31:41 +00001173source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001174
Johannes Bergf4cb5702007-12-08 02:14:00 +01001175config ARCH_SUSPEND_POSSIBLE
1176 def_bool y
1177
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178endmenu
1179
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001180source "net/Kconfig"
1181
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182menu "Device Drivers"
1183
1184source "drivers/base/Kconfig"
1185
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001186source "drivers/connector/Kconfig"
1187
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001188if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189source "drivers/mtd/Kconfig"
1190endif
1191
1192source "drivers/parport/Kconfig"
1193
1194source "drivers/pnp/Kconfig"
1195
1196source "drivers/block/Kconfig"
1197
Russell King58273e52007-10-12 22:24:09 +01001198# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1199
1200source "drivers/misc/Kconfig"
1201
Linus Torvalds1da177e2005-04-16 15:20:36 -07001202source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001203
1204source "drivers/scsi/Kconfig"
1205
Martin Michlmayreb370f02006-11-17 00:14:35 +01001206source "drivers/ata/Kconfig"
1207
Linus Torvalds1da177e2005-04-16 15:20:36 -07001208source "drivers/md/Kconfig"
1209
1210source "drivers/message/fusion/Kconfig"
1211
1212source "drivers/ieee1394/Kconfig"
1213
1214source "drivers/message/i2o/Kconfig"
1215
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001216source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217
1218source "drivers/isdn/Kconfig"
1219
1220# input before char - char/joystick depends on it. As does USB.
1221
1222source "drivers/input/Kconfig"
1223
1224source "drivers/char/Kconfig"
1225
1226source "drivers/i2c/Kconfig"
1227
David Brownell8ae12a02006-01-08 13:34:19 -08001228source "drivers/spi/Kconfig"
1229
David Brownella9c5fff2008-02-04 22:28:17 -08001230source "drivers/gpio/Kconfig"
1231
Alessandro Zummo04916c02006-03-10 22:30:01 +00001232source "drivers/w1/Kconfig"
1233
Russell King58273e52007-10-12 22:24:09 +01001234source "drivers/power/Kconfig"
1235
Jean Delvaread2f9312005-07-02 18:15:49 +02001236source "drivers/hwmon/Kconfig"
1237
Russell Kingac9d7ef2008-08-18 17:26:00 +01001238source "drivers/thermal/Kconfig"
1239
Russell King70dfa3f2007-11-07 14:13:35 +00001240source "drivers/watchdog/Kconfig"
1241
Russell King58273e52007-10-12 22:24:09 +01001242source "drivers/ssb/Kconfig"
1243
Linus Torvalds1da177e2005-04-16 15:20:36 -07001244#source "drivers/l3/Kconfig"
1245
Russell Kinga4e137a2005-08-18 10:06:59 +01001246source "drivers/mfd/Kconfig"
1247
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248source "drivers/media/Kconfig"
1249
1250source "drivers/video/Kconfig"
1251
1252source "sound/Kconfig"
1253
Sascha Hauerc2dade52006-12-12 10:32:42 +01001254source "drivers/hid/Kconfig"
1255
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256source "drivers/usb/Kconfig"
1257
Greg Kroah-Hartman2f86c3e2008-09-17 16:34:11 +01001258source "drivers/uwb/Kconfig"
1259
Linus Torvalds1da177e2005-04-16 15:20:36 -07001260source "drivers/mmc/Kconfig"
1261
Russell Kingac9d7ef2008-08-18 17:26:00 +01001262source "drivers/memstick/Kconfig"
1263
1264source "drivers/accessibility/Kconfig"
1265
Russell King58273e52007-10-12 22:24:09 +01001266source "drivers/leds/Kconfig"
1267
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001268source "drivers/rtc/Kconfig"
1269
Dan Williams58168152007-01-02 11:10:43 -07001270source "drivers/dma/Kconfig"
1271
Dan Williamsabf07b12008-01-18 23:26:10 +01001272source "drivers/dca/Kconfig"
1273
Russell Kingac9d7ef2008-08-18 17:26:00 +01001274source "drivers/auxdisplay/Kconfig"
1275
Liam Girdwoodba7e4762008-04-30 17:13:42 +01001276source "drivers/regulator/Kconfig"
1277
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001278source "drivers/uio/Kconfig"
1279
Linus Torvalds1da177e2005-04-16 15:20:36 -07001280endmenu
1281
1282source "fs/Kconfig"
1283
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284source "arch/arm/Kconfig.debug"
1285
1286source "security/Kconfig"
1287
1288source "crypto/Kconfig"
1289
1290source "lib/Kconfig"