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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
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000290 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100291 This enables support for systems based on the Hilscher NetX Soc
292
293config ARCH_H720X
294 bool "Hynix HMS720x-based"
295 select ISA_DMA_API
296 help
297 This enables support for systems based on the Hynix HMS720x
298
299config ARCH_IMX
300 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100301 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100302 select GENERIC_TIME
303 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100304 help
305 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306
Russell King3b938be2007-05-12 11:25:44 +0100307config ARCH_IOP13XX
308 bool "IOP13xx-based"
309 depends on MMU
310 select PLAT_IOP
311 select PCI
312 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100313 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100314 help
315 Support for Intel's IOP13XX (XScale) family of processors.
316
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100317config ARCH_IOP32X
318 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100319 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100320 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100321 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100322 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100323 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000324 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100325 Support for Intel's 80219 and IOP32X (XScale) family of
326 processors.
327
328config ARCH_IOP33X
329 bool "IOP33x-based"
330 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100331 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100332 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100333 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100334 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100335 help
336 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337
Russell King3b938be2007-05-12 11:25:44 +0100338config ARCH_IXP23XX
339 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100340 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100341 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100342 help
Russell King3b938be2007-05-12 11:25:44 +0100343 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344
345config ARCH_IXP2000
346 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100347 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100348 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000349 help
350 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351
Russell King3b938be2007-05-12 11:25:44 +0100352config ARCH_IXP4XX
353 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100354 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100355 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100356 select GENERIC_TIME
357 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100358 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100359 help
Russell King3b938be2007-05-12 11:25:44 +0100360 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100361
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362config ARCH_L7200
363 bool "LinkUp-L7200"
364 select FIQ
365 help
366 Say Y here if you intend to run this kernel on a LinkUp Systems
367 L7200 Software Development Board which uses an ARM720T processor.
368 Information on this board can be obtained at:
369
370 <http://www.linkupsys.com/>
371
372 If you have any questions or comments about the Linux kernel port
373 to this board, send e-mail to <sjhill@cotw.com>.
374
Saeed Bishara651c74c2008-06-22 22:45:06 +0200375config ARCH_KIRKWOOD
376 bool "Marvell Kirkwood"
377 select PCI
378 select GENERIC_TIME
379 select GENERIC_CLOCKEVENTS
380 select PLAT_ORION
381 help
382 Support for the following Marvell Kirkwood series SoCs:
383 88F6180, 88F6192 and 88F6281.
384
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100385config ARCH_KS8695
386 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100387 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100388 help
389 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
390 System-on-Chip devices.
391
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100392config ARCH_NS9XXX
393 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100394 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100395 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100396 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700397 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100398 help
399 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
400 System.
401
402 <http://www.digi.com/products/microprocessors/index.jsp>
403
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200404config ARCH_LOKI
405 bool "Marvell Loki (88RC8480)"
406 select GENERIC_TIME
407 select GENERIC_CLOCKEVENTS
408 select PLAT_ORION
409 help
410 Support for the Marvell Loki (88RC8480) SoC.
411
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200412config ARCH_MV78XX0
413 bool "Marvell MV78xx0"
414 select PCI
415 select GENERIC_TIME
416 select GENERIC_CLOCKEVENTS
417 select PLAT_ORION
418 help
419 Support for the following Marvell MV78xx0 series SoCs:
420 MV781x0, MV782x0.
421
Quinn Jensen52c543f2007-07-09 22:06:53 +0100422config ARCH_MXC
423 bool "Freescale MXC/iMX-based"
Juergen Beisertd0f349f2008-07-05 10:02:50 +0200424 select GENERIC_TIME
425 select GENERIC_CLOCKEVENTS
Quinn Jensen52c543f2007-07-09 22:06:53 +0100426 select ARCH_MTD_XIP
Juergen Beisert07bd1a62008-07-05 10:02:49 +0200427 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100428 select ARCH_REQUIRE_GPIOLIB
Quinn Jensen52c543f2007-07-09 22:06:53 +0100429 help
430 Support for Freescale MXC/iMX-based family of processors
431
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400432config ARCH_ORION5X
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400433 bool "Marvell Orion"
434 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400435 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400436 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400437 select GENERIC_TIME
438 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400439 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400440 help
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400441 Support for the following Marvell Orion 5x series SoCs:
Lennert Buytenhekd2b2a6b2008-05-31 08:30:40 +0200442 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
Lennert Buytenhekd323ade2008-08-29 06:55:06 +0200443 Orion-2 (5281), Orion-1-90 (6183).
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400444
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100445config ARCH_PNX4008
446 bool "Philips Nexperia PNX4008 Mobile"
David Brownell9483a572008-07-23 21:26:48 -0700447 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100448 help
449 This enables support for Philips PNX4008 mobile platform.
450
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700452 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100453 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500454 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800455 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700456 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700457 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100458 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100459 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000460 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000461 help
eric miao2c8086a2007-09-11 19:13:17 -0700462 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463
464config ARCH_RPC
465 bool "RiscPC"
466 select ARCH_ACORN
467 select FIQ
468 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100469 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100470 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000471 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000472 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100473 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 help
475 On the Acorn Risc-PC, Linux can support the internal IDE disk and
476 CD-ROM interface, serial and parallel port, and the floppy drive.
477
478config ARCH_SA1100
479 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100480 select ISA
Russell King05944d72006-11-30 20:43:51 +0000481 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500482 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800483 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000484 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100485 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700486 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100487 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700488 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000489 help
490 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491
492config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100493 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800494 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700495 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496 help
497 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
498 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000499 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500
501config ARCH_SHARK
502 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100503 select ISA
504 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100505 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100506 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000507 help
508 Support for the StrongARM based Digital DNARD machine, also known
509 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510
511config ARCH_LH7A40X
512 bool "Sharp LH7A40X"
Russell King4ba3f7c2008-10-01 21:38:23 +0100513 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
514 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700515 help
516 Say Y here for systems based on one of the Sharp LH7A40X
517 System on a Chip processors. These CPUs include an ARM922T
518 core with a wide array of integrated devices for
519 hand-held and low-power applications.
520
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100521config ARCH_DAVINCI
522 bool "TI DaVinci"
523 select GENERIC_TIME
524 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100525 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700526 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700527 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100528 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100529 help
530 Support for TI's DaVinci platform.
531
Russell King3b938be2007-05-12 11:25:44 +0100532config ARCH_OMAP
533 bool "TI OMAP"
534 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700535 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700536 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100537 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700538 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100539 help
540 Support for TI's OMAP platform (OMAP1 and OMAP2).
541
Brian Swetland1637de02008-09-09 07:13:33 -0700542config ARCH_MSM
543 bool "Qualcomm MSM"
Brian Swetland30421022007-11-26 04:11:43 -0800544 select GENERIC_TIME
545 select GENERIC_CLOCKEVENTS
546 help
Brian Swetland1637de02008-09-09 07:13:33 -0700547 Support for Qualcomm MSM7K based systems. This runs on the ARM11
548 apps processor of the MSM7K and depends on a shared memory
Brian Swetland30421022007-11-26 04:11:43 -0800549 interface to the ARM9 modem processor which runs the baseband stack
550 and controls some vital subsystems (clock and power control, etc).
Brian Swetland30421022007-11-26 04:11:43 -0800551
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552endchoice
553
554source "arch/arm/mach-clps711x/Kconfig"
555
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000556source "arch/arm/mach-ep93xx/Kconfig"
557
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558source "arch/arm/mach-footbridge/Kconfig"
559
560source "arch/arm/mach-integrator/Kconfig"
561
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100562source "arch/arm/mach-iop32x/Kconfig"
563
564source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700565
Dan Williams285f5fa2006-12-07 02:59:39 +0100566source "arch/arm/mach-iop13xx/Kconfig"
567
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568source "arch/arm/mach-ixp4xx/Kconfig"
569
570source "arch/arm/mach-ixp2000/Kconfig"
571
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100572source "arch/arm/mach-ixp23xx/Kconfig"
573
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200574source "arch/arm/mach-loki/Kconfig"
575
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200576source "arch/arm/mach-mv78xx0/Kconfig"
577
Linus Torvalds1da177e2005-04-16 15:20:36 -0700578source "arch/arm/mach-pxa/Kconfig"
579
580source "arch/arm/mach-sa1100/Kconfig"
581
Tony Lindgrend48af152005-07-10 19:58:17 +0100582source "arch/arm/plat-omap/Kconfig"
583
584source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585
Tony Lindgren1dbae812005-11-10 14:26:51 +0000586source "arch/arm/mach-omap2/Kconfig"
587
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400588source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400589
Saeed Bishara651c74c2008-06-22 22:45:06 +0200590source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591
Ben Dooksa21765a2007-02-11 18:31:01 +0100592source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100593source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100594
595if ARCH_S3C2410
596source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100598source "arch/arm/mach-s3c2412/Kconfig"
599source "arch/arm/mach-s3c2440/Kconfig"
600source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100601source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100602endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603
604source "arch/arm/mach-lh7a40x/Kconfig"
605
606source "arch/arm/mach-imx/Kconfig"
607
608source "arch/arm/mach-h720x/Kconfig"
609
610source "arch/arm/mach-versatile/Kconfig"
611
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100612source "arch/arm/mach-aaec2000/Kconfig"
613
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000614source "arch/arm/mach-realview/Kconfig"
615
Andrew Victor9d041262007-02-05 11:42:07 +0100616source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000617
Quinn Jensen52c543f2007-07-09 22:06:53 +0100618source "arch/arm/plat-mxc/Kconfig"
619
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100620source "arch/arm/mach-netx/Kconfig"
621
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100622source "arch/arm/mach-ns9xxx/Kconfig"
623
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100624source "arch/arm/mach-davinci/Kconfig"
625
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100626source "arch/arm/mach-ks8695/Kconfig"
627
Brian Swetland9e73c842007-11-26 04:12:13 -0800628source "arch/arm/mach-msm/Kconfig"
629
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630# Definitions to make life easier
631config ARCH_ACORN
632 bool
633
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100634config PLAT_IOP
635 bool
636
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400637config PLAT_ORION
638 bool
639
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640source arch/arm/mm/Kconfig
641
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100642config IWMMXT
643 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100644 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700645 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100646 help
647 Enable support for iWMMXt context switching at run time if
648 running on a CPU that supports it.
649
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
651config XSCALE_PMU
652 bool
653 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
654 default y
655
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100656if !MMU
657source "arch/arm/Kconfig-nommu"
658endif
659
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660endmenu
661
662source "arch/arm/common/Kconfig"
663
664config FORCE_MAX_ZONEORDER
665 int
666 depends on SA1111
667 default "9"
668
669menu "Bus support"
670
671config ARM_AMBA
672 bool
673
674config ISA
675 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676 help
677 Find out whether you have ISA slots on your motherboard. ISA is the
678 name of a bus system, i.e. the way the CPU talks to the other stuff
679 inside your box. Other bus systems are PCI, EISA, MicroChannel
680 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
681 newer boards don't support it. If you have ISA, say Y, otherwise N.
682
Russell King065909b2006-01-04 15:44:16 +0000683# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684config ISA_DMA
685 bool
Russell King065909b2006-01-04 15:44:16 +0000686 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687
Russell King065909b2006-01-04 15:44:16 +0000688# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100689config ISA_DMA_API
690 bool
Al Viro5cae8412005-05-04 05:39:22 +0100691
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100693 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694 help
695 Find out whether you have a PCI motherboard. PCI is the name of a
696 bus system, i.e. the way the CPU talks to the other stuff inside
697 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
698 VESA. If you have PCI, say Y, otherwise N.
699
Matthew Wilcox36e23592007-07-10 10:54:40 -0600700config PCI_SYSCALL
701 def_bool PCI
702
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703# Select the host bridge type
704config PCI_HOST_VIA82C505
705 bool
706 depends on PCI && ARCH_SHARK
707 default y
708
Mike Rapoporta0113a92007-11-25 08:55:34 +0100709config PCI_HOST_ITE8152
710 bool
711 depends on PCI && MACH_ARMCORE
712 default y
713 select DMABOUNCE
714
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715source "drivers/pci/Kconfig"
716
717source "drivers/pcmcia/Kconfig"
718
719endmenu
720
721menu "Kernel Features"
722
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100723source "kernel/time/Kconfig"
724
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725config SMP
726 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100727 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Jens Axboef6dd9fa52008-06-10 20:48:30 +0200728 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729 help
730 This enables support for systems with more than one CPU. If you have
731 a system with only one CPU, like most personal computers, say N. If
732 you have a system with more than one CPU, say Y.
733
734 If you say N here, the kernel will run on single and multiprocessor
735 machines, but will use only one CPU of a multiprocessor machine. If
736 you say Y here, the kernel will run on many, but not all, single
737 processor machines. On a single processor machine, the kernel will
738 run faster if you say N here.
739
Adrian Bunk03502fa2008-02-03 15:50:21 +0200740 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
742 <http://www.linuxdoc.org/docs.html#howto>.
743
744 If you don't know what to do here, say N.
745
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100746choice
747 prompt "Memory split"
748 default VMSPLIT_3G
749 help
750 Select the desired split between kernel and user memory.
751
752 If you are not absolutely sure what you are doing, leave this
753 option alone!
754
755 config VMSPLIT_3G
756 bool "3G/1G user/kernel split"
757 config VMSPLIT_2G
758 bool "2G/2G user/kernel split"
759 config VMSPLIT_1G
760 bool "1G/3G user/kernel split"
761endchoice
762
763config PAGE_OFFSET
764 hex
765 default 0x40000000 if VMSPLIT_1G
766 default 0x80000000 if VMSPLIT_2G
767 default 0xC0000000
768
Linus Torvalds1da177e2005-04-16 15:20:36 -0700769config NR_CPUS
770 int "Maximum number of CPUs (2-32)"
771 range 2 32
772 depends on SMP
773 default "4"
774
Russell Kinga054a812005-11-02 22:24:33 +0000775config HOTPLUG_CPU
776 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
777 depends on SMP && HOTPLUG && EXPERIMENTAL
778 help
779 Say Y here to experiment with turning CPUs off and on. CPUs
780 can be controlled through /sys/devices/system/cpu.
781
Russell King37ee16a2005-11-08 19:08:05 +0000782config LOCAL_TIMERS
783 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100784 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000785 default y
786 help
787 Enable support for local timers on SMP platforms, rather then the
788 legacy IPI broadcast method. Local timers allows the system
789 accounting to be spread across the timer interval, preventing a
790 "thundering herd" at every timer tick.
791
Linus Torvalds1da177e2005-04-16 15:20:36 -0700792config PREEMPT
793 bool "Preemptible Kernel (EXPERIMENTAL)"
794 depends on EXPERIMENTAL
795 help
796 This option reduces the latency of the kernel when reacting to
797 real-time or interactive events by allowing a low priority process to
798 be preempted even if it is in kernel mode executing a system call.
799 This allows applications to run more reliably even when the system is
800 under load.
801
802 Say Y here if you are building a kernel for a desktop, embedded
803 or real-time system. Say N if you are unsure.
804
Russell Kingf8065812006-03-02 22:41:59 +0000805config HZ
806 int
807 default 128 if ARCH_L7200
808 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000809 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100810 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000811 default 100
812
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000813config AEABI
814 bool "Use the ARM EABI to compile the kernel"
815 help
816 This option allows for the kernel to be compiled using the latest
817 ARM ABI (aka EABI). This is only useful if you are using a user
818 space environment that is also compiled with EABI.
819
820 Since there are major incompatibilities between the legacy ABI and
821 EABI, especially with regard to structure member alignment, this
822 option also changes the kernel syscall calling convention to
823 disambiguate both ABIs and allow for backward compatibility support
824 (selected with CONFIG_OABI_COMPAT).
825
826 To use this you need GCC version 4.0.0 or later.
827
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000828config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000829 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000830 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000831 default y
832 help
833 This option preserves the old syscall interface along with the
834 new (ARM EABI) one. It also provides a compatibility layer to
835 intercept syscalls that have structure arguments which layout
836 in memory differs between the legacy ABI and the new ARM EABI
837 (only for non "thumb" binaries). This option adds a tiny
838 overhead to all syscalls and produces a slightly larger kernel.
839 If you know you'll be using only pure EABI user space then you
840 can say N here. If this option is not selected and you attempt
841 to execute a legacy ABI binary then the result will be
842 UNPREDICTABLE (in fact it can be predicted that it won't work
843 at all). If in doubt say Y.
844
Mel Gormane80d6a22008-08-14 11:10:14 +0100845config ARCH_FLATMEM_HAS_HOLES
846 bool
847 default y
848 depends on FLATMEM
849
Russell King07a2f732008-10-01 21:39:58 +0100850# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -0700851config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853
Russell King05944d72006-11-30 20:43:51 +0000854config ARCH_SPARSEMEM_ENABLE
855 bool
856
Russell King07a2f732008-10-01 21:39:58 +0100857config ARCH_SPARSEMEM_DEFAULT
858 def_bool ARCH_SPARSEMEM_ENABLE
859
Russell King05944d72006-11-30 20:43:51 +0000860config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +0100861 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +0000862
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700863config NODES_SHIFT
864 int
865 default "4" if ARCH_LH7A40X
866 default "2"
867 depends on NEED_MULTIPLE_NODES
868
Dave Hansen3f22ab22005-06-23 00:07:43 -0700869source "mm/Kconfig"
870
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871config LEDS
872 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +0100873 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
875 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
876 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000877 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +0100878 ARCH_AT91 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400879 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880 help
881 If you say Y here, the LEDs on your machine will be used
882 to provide useful information about your current system status.
883
884 If you are compiling a kernel for a NetWinder or EBSA-285, you will
885 be able to select which LEDs are active using the options below. If
886 you are compiling a kernel for the EBSA-110 or the LART however, the
887 red LED will simply flash regularly to indicate that the system is
888 still functional. It is safe to say Y here if you have a CATS
889 system, but the driver will do nothing.
890
891config LEDS_TIMER
892 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700893 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
894 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100896 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897 default y if ARCH_EBSA110
898 help
899 If you say Y here, one of the system LEDs (the green one on the
900 NetWinder, the amber one on the EBSA285, or the red one on the LART)
901 will flash regularly to indicate that the system is still
902 operational. This is mainly useful to kernel hackers who are
903 debugging unstable kernels.
904
905 The LART uses the same LED for both Timer LED and CPU usage LED
906 functions. You may choose to use both, but the Timer LED function
907 will overrule the CPU usage LED.
908
909config LEDS_CPU
910 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700911 !ARCH_OMAP) \
912 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
913 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914 depends on LEDS
915 help
916 If you say Y here, the red LED will be used to give a good real
917 time indication of CPU usage, by lighting whenever the idle task
918 is not currently executing.
919
920 The LART uses the same LED for both Timer LED and CPU usage LED
921 functions. You may choose to use both, but the Timer LED function
922 will overrule the CPU usage LED.
923
924config ALIGNMENT_TRAP
925 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900926 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927 default y if !ARCH_EBSA110
928 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200929 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700930 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
931 address divisible by 4. On 32-bit ARM processors, these non-aligned
932 fetch/store instructions will be emulated in software if you say
933 here, which has a severe performance impact. This is necessary for
934 correct operation of some network protocols. With an IP-only
935 configuration it is safe to say N, otherwise say Y.
936
937endmenu
938
939menu "Boot options"
940
941# Compressed boot loader in ROM. Yes, we really want to ask about
942# TEXT and BSS so we preserve their values in the config files.
943config ZBOOT_ROM_TEXT
944 hex "Compressed ROM boot loader base address"
945 default "0"
946 help
947 The physical address at which the ROM-able zImage is to be
948 placed in the target. Platforms which normally make use of
949 ROM-able zImage formats normally set this to a suitable
950 value in their defconfig file.
951
952 If ZBOOT_ROM is not enabled, this has no effect.
953
954config ZBOOT_ROM_BSS
955 hex "Compressed ROM boot loader BSS address"
956 default "0"
957 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100958 The base address of an area of read/write memory in the target
959 for the ROM-able zImage which must be available while the
960 decompressor is running. It must be large enough to hold the
961 entire decompressed kernel plus an additional 128 KiB.
962 Platforms which normally make use of ROM-able zImage formats
963 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964
965 If ZBOOT_ROM is not enabled, this has no effect.
966
967config ZBOOT_ROM
968 bool "Compressed boot loader in ROM/flash"
969 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
970 help
971 Say Y here if you intend to execute your compressed kernel image
972 (zImage) directly from ROM or flash. If unsure, say N.
973
974config CMDLINE
975 string "Default kernel command string"
976 default ""
977 help
978 On some architectures (EBSA110 and CATS), there is currently no way
979 for the boot loader to pass arguments to the kernel. For these
980 architectures, you should supply some command-line options at build
981 time by entering them here. As a minimum, you should specify the
982 memory size and the root device (e.g., mem=64M root=/dev/nfs).
983
984config XIP_KERNEL
985 bool "Kernel Execute-In-Place from ROM"
986 depends on !ZBOOT_ROM
987 help
988 Execute-In-Place allows the kernel to run from non-volatile storage
989 directly addressable by the CPU, such as NOR flash. This saves RAM
990 space since the text section of the kernel is not loaded from flash
991 to RAM. Read-write sections, such as the data section and stack,
992 are still copied to RAM. The XIP kernel is not compressed since
993 it has to run directly from flash, so it will take more space to
994 store it. The flash address used to link the kernel object files,
995 and for storing it, is configuration dependent. Therefore, if you
996 say Y here, you must know the proper physical address where to
997 store the kernel image depending on your own flash memory usage.
998
999 Also note that the make target becomes "make xipImage" rather than
1000 "make zImage" or "make Image". The final kernel binary to put in
1001 ROM memory will be arch/arm/boot/xipImage.
1002
1003 If unsure, say N.
1004
1005config XIP_PHYS_ADDR
1006 hex "XIP Kernel Physical Location"
1007 depends on XIP_KERNEL
1008 default "0x00080000"
1009 help
1010 This is the physical address in your flash memory the kernel will
1011 be linked for and stored to. This address is dependent on your
1012 own flash usage.
1013
Richard Purdiec587e4a2007-02-06 21:29:00 +01001014config KEXEC
1015 bool "Kexec system call (EXPERIMENTAL)"
1016 depends on EXPERIMENTAL
1017 help
1018 kexec is a system call that implements the ability to shutdown your
1019 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001020 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001021 you can start any kernel with it, not just Linux.
1022
1023 It is an ongoing process to be certain the hardware in a machine
1024 is properly shutdown, so do not be surprised if this code does not
1025 initially work for you. It may help to enable device hotplugging
1026 support.
1027
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001028config ATAGS_PROC
1029 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001030 depends on KEXEC
1031 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001032 help
1033 Should the atags used to boot the kernel be exported in an "atags"
1034 file in procfs. Useful with kexec.
1035
Linus Torvalds1da177e2005-04-16 15:20:36 -07001036endmenu
1037
Russell Kingac9d7ef2008-08-18 17:26:00 +01001038menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039
Russell Kingac9d7ef2008-08-18 17:26:00 +01001040if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041
1042source "drivers/cpufreq/Kconfig"
1043
1044config CPU_FREQ_SA1100
1045 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +01001046 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 -07001047 default y
1048
1049config CPU_FREQ_SA1110
1050 bool
1051 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1052 default y
1053
1054config CPU_FREQ_INTEGRATOR
1055 tristate "CPUfreq driver for ARM Integrator CPUs"
1056 depends on ARCH_INTEGRATOR && CPU_FREQ
1057 default y
1058 help
1059 This enables the CPUfreq driver for ARM Integrator CPUs.
1060
1061 For details, take a look at <file:Documentation/cpu-freq>.
1062
1063 If in doubt, say Y.
1064
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +01001065config CPU_FREQ_IMX
1066 tristate "CPUfreq driver for i.MX CPUs"
1067 depends on ARCH_IMX && CPU_FREQ
1068 default n
1069 help
1070 This enables the CPUfreq driver for i.MX CPUs.
1071
1072 If in doubt, say N.
1073
Russell King9e2697f2007-12-14 13:30:14 +00001074config CPU_FREQ_PXA
1075 bool
1076 depends on CPU_FREQ && ARCH_PXA && PXA25x
1077 default y
1078 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1079
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080endif
1081
Russell Kingac9d7ef2008-08-18 17:26:00 +01001082source "drivers/cpuidle/Kconfig"
1083
1084endmenu
1085
Linus Torvalds1da177e2005-04-16 15:20:36 -07001086menu "Floating point emulation"
1087
1088comment "At least one emulation must be selected"
1089
1090config FPE_NWFPE
1091 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001092 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093 ---help---
1094 Say Y to include the NWFPE floating point emulator in the kernel.
1095 This is necessary to run most binaries. Linux does not currently
1096 support floating point hardware so you need to say Y here even if
1097 your machine has an FPA or floating point co-processor podule.
1098
1099 You may say N here if you are going to load the Acorn FPEmulator
1100 early in the bootup.
1101
1102config FPE_NWFPE_XP
1103 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001104 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001105 help
1106 Say Y to include 80-bit support in the kernel floating-point
1107 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1108 Note that gcc does not generate 80-bit operations by default,
1109 so in most cases this option only enlarges the size of the
1110 floating point emulator without any good reason.
1111
1112 You almost surely want to say N here.
1113
1114config FPE_FASTFPE
1115 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001116 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001117 ---help---
1118 Say Y here to include the FAST floating point emulator in the kernel.
1119 This is an experimental much faster emulator which now also has full
1120 precision for the mantissa. It does not support any exceptions.
1121 It is very simple, and approximately 3-6 times faster than NWFPE.
1122
1123 It should be sufficient for most programs. It may be not suitable
1124 for scientific calculations, but you have to check this for yourself.
1125 If you do not feel you need a faster FP emulation you should better
1126 choose NWFPE.
1127
1128config VFP
1129 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001130 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131 help
1132 Say Y to include VFP support code in the kernel. This is needed
1133 if your hardware includes a VFP unit.
1134
1135 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1136 release notes and additional status information.
1137
1138 Say N if your target does not have VFP hardware.
1139
Catalin Marinas25ebee02007-09-25 15:22:24 +01001140config VFPv3
1141 bool
1142 depends on VFP
1143 default y if CPU_V7
1144
Catalin Marinasb5872db2008-01-10 19:16:17 +01001145config NEON
1146 bool "Advanced SIMD (NEON) Extension support"
1147 depends on VFPv3 && CPU_V7
1148 help
1149 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1150 Extension.
1151
Linus Torvalds1da177e2005-04-16 15:20:36 -07001152endmenu
1153
1154menu "Userspace binary formats"
1155
1156source "fs/Kconfig.binfmt"
1157
1158config ARTHUR
1159 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001160 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161 help
1162 Say Y here to include the kernel code necessary if you want to run
1163 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1164 experimental; if this sounds frightening, say N and sleep in peace.
1165 You can also say M here to compile this support as a module (which
1166 will be called arthur).
1167
1168endmenu
1169
1170menu "Power management options"
1171
Russell Kingeceab4a2005-11-15 11:31:41 +00001172source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001173
Johannes Bergf4cb5702007-12-08 02:14:00 +01001174config ARCH_SUSPEND_POSSIBLE
1175 def_bool y
1176
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177endmenu
1178
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001179source "net/Kconfig"
1180
Linus Torvalds1da177e2005-04-16 15:20:36 -07001181menu "Device Drivers"
1182
1183source "drivers/base/Kconfig"
1184
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001185source "drivers/connector/Kconfig"
1186
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001187if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188source "drivers/mtd/Kconfig"
1189endif
1190
1191source "drivers/parport/Kconfig"
1192
1193source "drivers/pnp/Kconfig"
1194
1195source "drivers/block/Kconfig"
1196
Russell King58273e52007-10-12 22:24:09 +01001197# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1198
1199source "drivers/misc/Kconfig"
1200
Linus Torvalds1da177e2005-04-16 15:20:36 -07001201source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001202
1203source "drivers/scsi/Kconfig"
1204
Martin Michlmayreb370f02006-11-17 00:14:35 +01001205source "drivers/ata/Kconfig"
1206
Linus Torvalds1da177e2005-04-16 15:20:36 -07001207source "drivers/md/Kconfig"
1208
1209source "drivers/message/fusion/Kconfig"
1210
1211source "drivers/ieee1394/Kconfig"
1212
1213source "drivers/message/i2o/Kconfig"
1214
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001215source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216
1217source "drivers/isdn/Kconfig"
1218
1219# input before char - char/joystick depends on it. As does USB.
1220
1221source "drivers/input/Kconfig"
1222
1223source "drivers/char/Kconfig"
1224
1225source "drivers/i2c/Kconfig"
1226
David Brownell8ae12a02006-01-08 13:34:19 -08001227source "drivers/spi/Kconfig"
1228
David Brownella9c5fff2008-02-04 22:28:17 -08001229source "drivers/gpio/Kconfig"
1230
Alessandro Zummo04916c02006-03-10 22:30:01 +00001231source "drivers/w1/Kconfig"
1232
Russell King58273e52007-10-12 22:24:09 +01001233source "drivers/power/Kconfig"
1234
Jean Delvaread2f9312005-07-02 18:15:49 +02001235source "drivers/hwmon/Kconfig"
1236
Russell Kingac9d7ef2008-08-18 17:26:00 +01001237source "drivers/thermal/Kconfig"
1238
Russell King70dfa3f2007-11-07 14:13:35 +00001239source "drivers/watchdog/Kconfig"
1240
Russell King58273e52007-10-12 22:24:09 +01001241source "drivers/ssb/Kconfig"
1242
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243#source "drivers/l3/Kconfig"
1244
Russell Kinga4e137a2005-08-18 10:06:59 +01001245source "drivers/mfd/Kconfig"
1246
Linus Torvalds1da177e2005-04-16 15:20:36 -07001247source "drivers/media/Kconfig"
1248
1249source "drivers/video/Kconfig"
1250
1251source "sound/Kconfig"
1252
Sascha Hauerc2dade52006-12-12 10:32:42 +01001253source "drivers/hid/Kconfig"
1254
Linus Torvalds1da177e2005-04-16 15:20:36 -07001255source "drivers/usb/Kconfig"
1256
Greg Kroah-Hartman2f86c3e2008-09-17 16:34:11 +01001257source "drivers/uwb/Kconfig"
1258
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259source "drivers/mmc/Kconfig"
1260
Russell Kingac9d7ef2008-08-18 17:26:00 +01001261source "drivers/memstick/Kconfig"
1262
1263source "drivers/accessibility/Kconfig"
1264
Russell King58273e52007-10-12 22:24:09 +01001265source "drivers/leds/Kconfig"
1266
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001267source "drivers/rtc/Kconfig"
1268
Dan Williams58168152007-01-02 11:10:43 -07001269source "drivers/dma/Kconfig"
1270
Dan Williamsabf07b12008-01-18 23:26:10 +01001271source "drivers/dca/Kconfig"
1272
Russell Kingac9d7ef2008-08-18 17:26:00 +01001273source "drivers/auxdisplay/Kconfig"
1274
Liam Girdwoodba7e4762008-04-30 17:13:42 +01001275source "drivers/regulator/Kconfig"
1276
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001277source "drivers/uio/Kconfig"
1278
Linus Torvalds1da177e2005-04-16 15:20:36 -07001279endmenu
1280
1281source "fs/Kconfig"
1282
Linus Torvalds1da177e2005-04-16 15:20:36 -07001283source "arch/arm/Kconfig.debug"
1284
1285source "security/Kconfig"
1286
1287source "crypto/Kconfig"
1288
1289source "lib/Kconfig"