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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
Adrian Bunk2064c942008-04-28 23:44:43 +020011 select HAVE_IDE
Alessandro Zummo12b824f2006-03-27 01:16:35 -080012 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000013 select SYS_SUPPORTS_APM_EMULATION
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050014 select HAVE_OPROFILE
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050015 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080016 select HAVE_KRETPROBES if (HAVE_KPROBES)
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 help
18 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000019 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070020 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000021 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 Europe. There is an ARM Linux project with a web page at
23 <http://www.arm.linux.org.uk/>.
24
Ralf Baechle75e71532007-02-09 17:08:58 +000025config SYS_SUPPORTS_APM_EMULATION
26 bool
27
David Brownell0a938b92007-03-05 00:30:18 -080028config GENERIC_GPIO
29 bool
30 default n
31
Kevin Hilman746140c2006-09-22 00:16:30 +010032config GENERIC_TIME
33 bool
34 default n
35
Kevin Hilman0567a0c2007-03-13 20:29:24 +010036config GENERIC_CLOCKEVENTS
37 bool
38 default n
39
Catalin Marinasa8655e82008-02-04 17:30:57 +010040config GENERIC_CLOCKEVENTS_BROADCAST
41 bool
42 depends on GENERIC_CLOCKEVENTS
43 default y if SMP && !LOCAL_TIMERS
44
Linus Torvalds1da177e2005-04-16 15:20:36 -070045config MMU
46 bool
47 default y
48
Al Viro5ea81762007-02-11 15:41:31 +000049config NO_IOPORT
50 bool
51 default n
52
Linus Torvalds1da177e2005-04-16 15:20:36 -070053config EISA
54 bool
55 ---help---
56 The Extended Industry Standard Architecture (EISA) bus was
57 developed as an open alternative to the IBM MicroChannel bus.
58
59 The EISA bus provided some of the features of the IBM MicroChannel
60 bus while maintaining backward compatibility with cards made for
61 the older ISA bus. The EISA bus saw limited use between 1988 and
62 1995 when it was made obsolete by the PCI bus.
63
64 Say Y here if you are building a kernel for an EISA-based machine.
65
66 Otherwise, say N.
67
68config SBUS
69 bool
70
71config MCA
72 bool
73 help
74 MicroChannel Architecture is found in some IBM PS/2 machines and
75 laptops. It is a bus system similar to PCI or ISA. See
76 <file:Documentation/mca.txt> (and especially the web page given
77 there) before attempting to build an MCA bus kernel.
78
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010079config GENERIC_HARDIRQS
80 bool
81 default y
82
Russell Kingf16fb1e2007-04-28 09:59:37 +010083config STACKTRACE_SUPPORT
84 bool
85 default y
86
Nicolas Pitref76e9152008-04-24 01:31:46 -040087config HAVE_LATENCYTOP_SUPPORT
88 bool
89 depends on !SMP
90 default y
91
Russell Kingf16fb1e2007-04-28 09:59:37 +010092config LOCKDEP_SUPPORT
93 bool
94 default y
95
Russell King7ad1bcb2006-08-27 12:07:02 +010096config TRACE_IRQFLAGS_SUPPORT
97 bool
98 default y
99
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100100config HARDIRQS_SW_RESEND
101 bool
102 default y
103
104config GENERIC_IRQ_PROBE
105 bool
106 default y
107
Nick Piggin95c354f2008-01-30 13:31:20 +0100108config GENERIC_LOCKBREAK
109 bool
110 default y
111 depends on SMP && PREEMPT
112
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113config RWSEM_GENERIC_SPINLOCK
114 bool
115 default y
116
117config RWSEM_XCHGADD_ALGORITHM
118 bool
119
David Howellsf0d1b0b2006-12-08 02:37:49 -0800120config ARCH_HAS_ILOG2_U32
121 bool
122 default n
123
124config ARCH_HAS_ILOG2_U64
125 bool
126 default n
127
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800128config GENERIC_HWEIGHT
129 bool
130 default y
131
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132config GENERIC_CALIBRATE_DELAY
133 bool
134 default y
135
David Howellsb0b933c2008-02-08 04:19:27 -0800136config ARCH_SUPPORTS_AOUT
137 def_bool y
138
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100139config ARCH_MAY_HAVE_PC_FDC
140 bool
141
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800142config ZONE_DMA
143 bool
144 default y
145
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146config GENERIC_ISA_DMA
147 bool
148
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149config FIQ
150 bool
151
Al Viro034d2f52005-12-19 16:27:59 -0500152config ARCH_MTD_XIP
153 bool
154
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500155if OPROFILE
156
157config OPROFILE_ARMV6
158 def_bool y
159 depends on CPU_V6 && !SMP
160 select OPROFILE_ARM11_CORE
161
162config OPROFILE_MPCORE
163 def_bool y
164 depends on CPU_V6 && SMP
165 select OPROFILE_ARM11_CORE
166
167config OPROFILE_ARM11_CORE
168 bool
169
170endif
171
Hyok S. Choic760fc12006-03-27 15:18:50 +0100172config VECTORS_BASE
173 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900174 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100175 default DRAM_BASE if REMAP_VECTORS_TO_RAM
176 default 0x00000000
177 help
178 The base address of exception vectors.
179
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180source "init/Kconfig"
181
182menu "System Type"
183
184choice
185 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000186 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100188config ARCH_AAEC2000
189 bool "Agilent AAEC-2000 based"
190 select ARM_AMBA
191 help
192 This enables support for systems based on the Agilent AAEC-2000
193
194config ARCH_INTEGRATOR
195 bool "ARM Ltd. Integrator family"
196 select ARM_AMBA
197 select ICST525
198 help
199 Support for ARM's Integrator platform.
200
201config ARCH_REALVIEW
202 bool "ARM Ltd. RealView family"
203 select ARM_AMBA
204 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100205 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100206 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100207 help
208 This enables support for ARM Ltd RealView boards.
209
210config ARCH_VERSATILE
211 bool "ARM Ltd. Versatile family"
212 select ARM_AMBA
213 select ARM_VIC
214 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100215 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100216 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100217 help
218 This enables support for ARM Ltd Versatile board.
219
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100220config ARCH_AT91
221 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800222 select GENERIC_GPIO
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100223 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100224 This enables support for systems based on the Atmel AT91RM9200,
225 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100226
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100228 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100230 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000231 select NO_IOPORT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000232 help
233 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234
235config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100236 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000237 help
238 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239
240config ARCH_CO285
241 bool "Co-EBSA285"
242 select FOOTBRIDGE
243 select FOOTBRIDGE_ADDIN
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000244 help
245 Support for Intel's EBSA285 companion chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246
247config ARCH_EBSA110
248 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100249 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000250 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 help
252 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000253 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 Ethernet interface, two PCMCIA sockets, two serial ports and a
255 parallel port.
256
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000257config ARCH_EP93XX
258 bool "EP93xx-based"
259 select ARM_AMBA
260 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100261 select GENERIC_GPIO
Ryan Mallonb6850042008-04-16 02:56:35 +0100262 select HAVE_GPIO_LIB
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000263 help
264 This enables support for the Cirrus EP93xx series of CPUs.
265
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266config ARCH_FOOTBRIDGE
267 bool "FootBridge"
268 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000269 help
270 Support for systems based on the DC21285 companion chip
271 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100273config ARCH_NETX
274 bool "Hilscher NetX based"
275 select ARM_VIC
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000276 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100277 This enables support for systems based on the Hilscher NetX Soc
278
279config ARCH_H720X
280 bool "Hynix HMS720x-based"
281 select ISA_DMA_API
282 help
283 This enables support for systems based on the Hynix HMS720x
284
285config ARCH_IMX
286 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100287 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100288 select GENERIC_TIME
289 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100290 help
291 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292
Russell King3b938be2007-05-12 11:25:44 +0100293config ARCH_IOP13XX
294 bool "IOP13xx-based"
295 depends on MMU
296 select PLAT_IOP
297 select PCI
298 select ARCH_SUPPORTS_MSI
299 help
300 Support for Intel's IOP13XX (XScale) family of processors.
301
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100302config ARCH_IOP32X
303 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100304 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100305 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100306 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000307 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100308 Support for Intel's 80219 and IOP32X (XScale) family of
309 processors.
310
311config ARCH_IOP33X
312 bool "IOP33x-based"
313 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100314 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100315 select PCI
316 help
317 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318
Russell King3b938be2007-05-12 11:25:44 +0100319config ARCH_IXP23XX
320 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100321 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100322 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100323 help
Russell King3b938be2007-05-12 11:25:44 +0100324 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325
326config ARCH_IXP2000
327 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100328 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100329 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000330 help
331 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332
Russell King3b938be2007-05-12 11:25:44 +0100333config ARCH_IXP4XX
334 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100335 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100336 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100337 select GENERIC_TIME
338 select GENERIC_CLOCKEVENTS
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100339 help
Russell King3b938be2007-05-12 11:25:44 +0100340 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100341
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342config ARCH_L7200
343 bool "LinkUp-L7200"
344 select FIQ
345 help
346 Say Y here if you intend to run this kernel on a LinkUp Systems
347 L7200 Software Development Board which uses an ARM720T processor.
348 Information on this board can be obtained at:
349
350 <http://www.linkupsys.com/>
351
352 If you have any questions or comments about the Linux kernel port
353 to this board, send e-mail to <sjhill@cotw.com>.
354
Saeed Bishara651c74c2008-06-22 22:45:06 +0200355config ARCH_KIRKWOOD
356 bool "Marvell Kirkwood"
357 select PCI
358 select GENERIC_TIME
359 select GENERIC_CLOCKEVENTS
360 select PLAT_ORION
361 help
362 Support for the following Marvell Kirkwood series SoCs:
363 88F6180, 88F6192 and 88F6281.
364
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100365config ARCH_KS8695
366 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100367 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100368 help
369 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
370 System-on-Chip devices.
371
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100372config ARCH_NS9XXX
373 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100374 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100375 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100376 select GENERIC_CLOCKEVENTS
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100377 help
378 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
379 System.
380
381 <http://www.digi.com/products/microprocessors/index.jsp>
382
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200383config ARCH_LOKI
384 bool "Marvell Loki (88RC8480)"
385 select GENERIC_TIME
386 select GENERIC_CLOCKEVENTS
387 select PLAT_ORION
388 help
389 Support for the Marvell Loki (88RC8480) SoC.
390
Quinn Jensen52c543f2007-07-09 22:06:53 +0100391config ARCH_MXC
392 bool "Freescale MXC/iMX-based"
393 select ARCH_MTD_XIP
394 help
395 Support for Freescale MXC/iMX-based family of processors
396
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400397config ARCH_ORION5X
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400398 bool "Marvell Orion"
399 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400400 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400401 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400402 select GENERIC_TIME
403 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400404 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400405 help
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400406 Support for the following Marvell Orion 5x series SoCs:
Lennert Buytenhekd2b2a6b2008-05-31 08:30:40 +0200407 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
408 Orion-2 (5281).
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400409
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100410config ARCH_PNX4008
411 bool "Philips Nexperia PNX4008 Mobile"
412 help
413 This enables support for Philips PNX4008 mobile platform.
414
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700416 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100417 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500418 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800419 select GENERIC_GPIO
Philipp Zabel1c44f5f2008-02-04 22:28:22 -0800420 select HAVE_GPIO_LIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100421 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100422 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000423 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000424 help
eric miao2c8086a2007-09-11 19:13:17 -0700425 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426
427config ARCH_RPC
428 bool "RiscPC"
429 select ARCH_ACORN
430 select FIQ
431 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100432 select ARCH_MAY_HAVE_PC_FDC
Russell King065909b2006-01-04 15:44:16 +0000433 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000434 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 help
436 On the Acorn Risc-PC, Linux can support the internal IDE disk and
437 CD-ROM interface, serial and parallel port, and the floppy drive.
438
439config ARCH_SA1100
440 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100441 select ISA
Russell King3cd9e192005-06-25 19:29:34 +0100442 select ARCH_DISCONTIGMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +0000443 select ARCH_SPARSEMEM_ENABLE
444 select ARCH_SELECT_MEMORY_MODEL
Al Viro034d2f52005-12-19 16:27:59 -0500445 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800446 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000447 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100448 select GENERIC_CLOCKEVENTS
449 select TICK_ONESHOT
Dmitry Baryshkov45528e32008-04-10 13:31:47 +0100450 select HAVE_GPIO_LIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000451 help
452 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453
454config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100455 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800456 select GENERIC_GPIO
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457 help
458 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
459 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000460 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461
462config ARCH_SHARK
463 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100464 select ISA
465 select ISA_DMA
466 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000467 help
468 Support for the StrongARM based Digital DNARD machine, also known
469 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470
471config ARCH_LH7A40X
472 bool "Sharp LH7A40X"
473 help
474 Say Y here for systems based on one of the Sharp LH7A40X
475 System on a Chip processors. These CPUs include an ARM922T
476 core with a wide array of integrated devices for
477 hand-held and low-power applications.
478
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100479config ARCH_DAVINCI
480 bool "TI DaVinci"
481 select GENERIC_TIME
482 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100483 select GENERIC_GPIO
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100484 help
485 Support for TI's DaVinci platform.
486
Russell King3b938be2007-05-12 11:25:44 +0100487config ARCH_OMAP
488 bool "TI OMAP"
489 select GENERIC_GPIO
David Brownell52e31342008-03-03 12:43:23 -0800490 select HAVE_GPIO_LIB
Russell King3b938be2007-05-12 11:25:44 +0100491 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700492 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100493 help
494 Support for TI's OMAP platform (OMAP1 and OMAP2).
495
Brian Swetland30421022007-11-26 04:11:43 -0800496config ARCH_MSM7X00A
497 bool "Qualcomm MSM7X00A"
498 select GENERIC_TIME
499 select GENERIC_CLOCKEVENTS
500 help
501 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
502 apps processor of the MSM7X00A and depends on a shared memory
503 interface to the ARM9 modem processor which runs the baseband stack
504 and controls some vital subsystems (clock and power control, etc).
505 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
506
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507endchoice
508
509source "arch/arm/mach-clps711x/Kconfig"
510
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000511source "arch/arm/mach-ep93xx/Kconfig"
512
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513source "arch/arm/mach-footbridge/Kconfig"
514
515source "arch/arm/mach-integrator/Kconfig"
516
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100517source "arch/arm/mach-iop32x/Kconfig"
518
519source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520
Dan Williams285f5fa2006-12-07 02:59:39 +0100521source "arch/arm/mach-iop13xx/Kconfig"
522
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523source "arch/arm/mach-ixp4xx/Kconfig"
524
525source "arch/arm/mach-ixp2000/Kconfig"
526
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100527source "arch/arm/mach-ixp23xx/Kconfig"
528
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200529source "arch/arm/mach-loki/Kconfig"
530
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531source "arch/arm/mach-pxa/Kconfig"
532
533source "arch/arm/mach-sa1100/Kconfig"
534
Tony Lindgrend48af152005-07-10 19:58:17 +0100535source "arch/arm/plat-omap/Kconfig"
536
537source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700538
Tony Lindgren1dbae812005-11-10 14:26:51 +0000539source "arch/arm/mach-omap2/Kconfig"
540
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400541source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400542
Saeed Bishara651c74c2008-06-22 22:45:06 +0200543source "arch/arm/mach-kirkwood/Kconfig"
544
Ben Dooksa21765a2007-02-11 18:31:01 +0100545source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100546source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100547
548if ARCH_S3C2410
549source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100551source "arch/arm/mach-s3c2412/Kconfig"
552source "arch/arm/mach-s3c2440/Kconfig"
553source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100554source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100555endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556
557source "arch/arm/mach-lh7a40x/Kconfig"
558
559source "arch/arm/mach-imx/Kconfig"
560
561source "arch/arm/mach-h720x/Kconfig"
562
563source "arch/arm/mach-versatile/Kconfig"
564
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100565source "arch/arm/mach-aaec2000/Kconfig"
566
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000567source "arch/arm/mach-realview/Kconfig"
568
Andrew Victor9d041262007-02-05 11:42:07 +0100569source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000570
Quinn Jensen52c543f2007-07-09 22:06:53 +0100571source "arch/arm/plat-mxc/Kconfig"
572
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100573source "arch/arm/mach-netx/Kconfig"
574
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100575source "arch/arm/mach-ns9xxx/Kconfig"
576
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100577source "arch/arm/mach-davinci/Kconfig"
578
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100579source "arch/arm/mach-ks8695/Kconfig"
580
Brian Swetland9e73c842007-11-26 04:12:13 -0800581source "arch/arm/mach-msm/Kconfig"
582
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583# Definitions to make life easier
584config ARCH_ACORN
585 bool
586
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100587config PLAT_IOP
588 bool
589
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400590config PLAT_ORION
591 bool
592
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593source arch/arm/mm/Kconfig
594
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100595config IWMMXT
596 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100597 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700598 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100599 help
600 Enable support for iWMMXt context switching at run time if
601 running on a CPU that supports it.
602
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
604config XSCALE_PMU
605 bool
606 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
607 default y
608
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100609if !MMU
610source "arch/arm/Kconfig-nommu"
611endif
612
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613endmenu
614
615source "arch/arm/common/Kconfig"
616
617config FORCE_MAX_ZONEORDER
618 int
619 depends on SA1111
620 default "9"
621
622menu "Bus support"
623
624config ARM_AMBA
625 bool
626
627config ISA
628 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629 help
630 Find out whether you have ISA slots on your motherboard. ISA is the
631 name of a bus system, i.e. the way the CPU talks to the other stuff
632 inside your box. Other bus systems are PCI, EISA, MicroChannel
633 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
634 newer boards don't support it. If you have ISA, say Y, otherwise N.
635
Russell King065909b2006-01-04 15:44:16 +0000636# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637config ISA_DMA
638 bool
Russell King065909b2006-01-04 15:44:16 +0000639 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640
Russell King065909b2006-01-04 15:44:16 +0000641# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100642config ISA_DMA_API
643 bool
Al Viro5cae8412005-05-04 05:39:22 +0100644
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100646 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647 help
648 Find out whether you have a PCI motherboard. PCI is the name of a
649 bus system, i.e. the way the CPU talks to the other stuff inside
650 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
651 VESA. If you have PCI, say Y, otherwise N.
652
Matthew Wilcox36e23592007-07-10 10:54:40 -0600653config PCI_SYSCALL
654 def_bool PCI
655
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656# Select the host bridge type
657config PCI_HOST_VIA82C505
658 bool
659 depends on PCI && ARCH_SHARK
660 default y
661
Mike Rapoporta0113a92007-11-25 08:55:34 +0100662config PCI_HOST_ITE8152
663 bool
664 depends on PCI && MACH_ARMCORE
665 default y
666 select DMABOUNCE
667
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668source "drivers/pci/Kconfig"
669
670source "drivers/pcmcia/Kconfig"
671
672endmenu
673
674menu "Kernel Features"
675
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100676source "kernel/time/Kconfig"
677
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678config SMP
679 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100680 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681 help
682 This enables support for systems with more than one CPU. If you have
683 a system with only one CPU, like most personal computers, say N. If
684 you have a system with more than one CPU, say Y.
685
686 If you say N here, the kernel will run on single and multiprocessor
687 machines, but will use only one CPU of a multiprocessor machine. If
688 you say Y here, the kernel will run on many, but not all, single
689 processor machines. On a single processor machine, the kernel will
690 run faster if you say N here.
691
Adrian Bunk03502fa2008-02-03 15:50:21 +0200692 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
694 <http://www.linuxdoc.org/docs.html#howto>.
695
696 If you don't know what to do here, say N.
697
698config NR_CPUS
699 int "Maximum number of CPUs (2-32)"
700 range 2 32
701 depends on SMP
702 default "4"
703
Russell Kinga054a812005-11-02 22:24:33 +0000704config HOTPLUG_CPU
705 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
706 depends on SMP && HOTPLUG && EXPERIMENTAL
707 help
708 Say Y here to experiment with turning CPUs off and on. CPUs
709 can be controlled through /sys/devices/system/cpu.
710
Russell King37ee16a2005-11-08 19:08:05 +0000711config LOCAL_TIMERS
712 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100713 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000714 default y
715 help
716 Enable support for local timers on SMP platforms, rather then the
717 legacy IPI broadcast method. Local timers allows the system
718 accounting to be spread across the timer interval, preventing a
719 "thundering herd" at every timer tick.
720
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721config PREEMPT
722 bool "Preemptible Kernel (EXPERIMENTAL)"
723 depends on EXPERIMENTAL
724 help
725 This option reduces the latency of the kernel when reacting to
726 real-time or interactive events by allowing a low priority process to
727 be preempted even if it is in kernel mode executing a system call.
728 This allows applications to run more reliably even when the system is
729 under load.
730
731 Say Y here if you are building a kernel for a desktop, embedded
732 or real-time system. Say N if you are unsure.
733
Russell King8749af62005-06-25 19:39:45 +0100734config NO_IDLE_HZ
735 bool "Dynamic tick timer"
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100736 depends on !GENERIC_CLOCKEVENTS
Russell King8749af62005-06-25 19:39:45 +0100737 help
738 Select this option if you want to disable continuous timer ticks
739 and have them programmed to occur as required. This option saves
740 power as the system can remain in idle state for longer.
741
742 By default dynamic tick is disabled during the boot, and can be
743 manually enabled with:
744
745 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
746
747 Alternatively, if you want dynamic tick automatically enabled
748 during boot, pass "dyntick=enable" via the kernel command string.
749
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100750 Please note that dynamic tick may affect the accuracy of
751 timekeeping on some platforms depending on the implementation.
Nicolas Pitre569d2c32005-09-01 12:48:48 +0100752 Currently at least OMAP, PXA2xx and SA11x0 platforms are known
753 to have accurate timekeeping with dynamic tick.
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100754
Russell Kingf8065812006-03-02 22:41:59 +0000755config HZ
756 int
757 default 128 if ARCH_L7200
758 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000759 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100760 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000761 default 100
762
Nicolas Pitre704bdda02006-01-14 16:33:50 +0000763config AEABI
764 bool "Use the ARM EABI to compile the kernel"
765 help
766 This option allows for the kernel to be compiled using the latest
767 ARM ABI (aka EABI). This is only useful if you are using a user
768 space environment that is also compiled with EABI.
769
770 Since there are major incompatibilities between the legacy ABI and
771 EABI, especially with regard to structure member alignment, this
772 option also changes the kernel syscall calling convention to
773 disambiguate both ABIs and allow for backward compatibility support
774 (selected with CONFIG_OABI_COMPAT).
775
776 To use this you need GCC version 4.0.0 or later.
777
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000778config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000779 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000780 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000781 default y
782 help
783 This option preserves the old syscall interface along with the
784 new (ARM EABI) one. It also provides a compatibility layer to
785 intercept syscalls that have structure arguments which layout
786 in memory differs between the legacy ABI and the new ARM EABI
787 (only for non "thumb" binaries). This option adds a tiny
788 overhead to all syscalls and produces a slightly larger kernel.
789 If you know you'll be using only pure EABI user space then you
790 can say N here. If this option is not selected and you attempt
791 to execute a legacy ABI binary then the result will be
792 UNPREDICTABLE (in fact it can be predicted that it won't work
793 at all). If in doubt say Y.
794
Dave Hansen3f22ab22005-06-23 00:07:43 -0700795config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100797 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798 help
799 Say Y to support efficient handling of discontiguous physical memory,
800 for architectures which are either NUMA (Non-Uniform Memory Access)
801 or have huge holes in the physical address space for other reasons.
802 See <file:Documentation/vm/numa> for more.
803
Russell King05944d72006-11-30 20:43:51 +0000804config ARCH_SPARSEMEM_ENABLE
805 bool
806
807config ARCH_SELECT_MEMORY_MODEL
808 bool
809
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700810config NODES_SHIFT
811 int
812 default "4" if ARCH_LH7A40X
813 default "2"
814 depends on NEED_MULTIPLE_NODES
815
Dave Hansen3f22ab22005-06-23 00:07:43 -0700816source "mm/Kconfig"
817
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818config LEDS
819 bool "Timer and CPU usage LEDs"
820 depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
821 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
822 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
823 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000824 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100825 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400826 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827 help
828 If you say Y here, the LEDs on your machine will be used
829 to provide useful information about your current system status.
830
831 If you are compiling a kernel for a NetWinder or EBSA-285, you will
832 be able to select which LEDs are active using the options below. If
833 you are compiling a kernel for the EBSA-110 or the LART however, the
834 red LED will simply flash regularly to indicate that the system is
835 still functional. It is safe to say Y here if you have a CATS
836 system, but the driver will do nothing.
837
838config LEDS_TIMER
839 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700840 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
841 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100843 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844 default y if ARCH_EBSA110
845 help
846 If you say Y here, one of the system LEDs (the green one on the
847 NetWinder, the amber one on the EBSA285, or the red one on the LART)
848 will flash regularly to indicate that the system is still
849 operational. This is mainly useful to kernel hackers who are
850 debugging unstable kernels.
851
852 The LART uses the same LED for both Timer LED and CPU usage LED
853 functions. You may choose to use both, but the Timer LED function
854 will overrule the CPU usage LED.
855
856config LEDS_CPU
857 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700858 !ARCH_OMAP) \
859 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
860 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861 depends on LEDS
862 help
863 If you say Y here, the red LED will be used to give a good real
864 time indication of CPU usage, by lighting whenever the idle task
865 is not currently executing.
866
867 The LART uses the same LED for both Timer LED and CPU usage LED
868 functions. You may choose to use both, but the Timer LED function
869 will overrule the CPU usage LED.
870
871config ALIGNMENT_TRAP
872 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900873 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874 default y if !ARCH_EBSA110
875 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200876 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
878 address divisible by 4. On 32-bit ARM processors, these non-aligned
879 fetch/store instructions will be emulated in software if you say
880 here, which has a severe performance impact. This is necessary for
881 correct operation of some network protocols. With an IP-only
882 configuration it is safe to say N, otherwise say Y.
883
884endmenu
885
886menu "Boot options"
887
888# Compressed boot loader in ROM. Yes, we really want to ask about
889# TEXT and BSS so we preserve their values in the config files.
890config ZBOOT_ROM_TEXT
891 hex "Compressed ROM boot loader base address"
892 default "0"
893 help
894 The physical address at which the ROM-able zImage is to be
895 placed in the target. Platforms which normally make use of
896 ROM-able zImage formats normally set this to a suitable
897 value in their defconfig file.
898
899 If ZBOOT_ROM is not enabled, this has no effect.
900
901config ZBOOT_ROM_BSS
902 hex "Compressed ROM boot loader BSS address"
903 default "0"
904 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100905 The base address of an area of read/write memory in the target
906 for the ROM-able zImage which must be available while the
907 decompressor is running. It must be large enough to hold the
908 entire decompressed kernel plus an additional 128 KiB.
909 Platforms which normally make use of ROM-able zImage formats
910 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911
912 If ZBOOT_ROM is not enabled, this has no effect.
913
914config ZBOOT_ROM
915 bool "Compressed boot loader in ROM/flash"
916 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
917 help
918 Say Y here if you intend to execute your compressed kernel image
919 (zImage) directly from ROM or flash. If unsure, say N.
920
921config CMDLINE
922 string "Default kernel command string"
923 default ""
924 help
925 On some architectures (EBSA110 and CATS), there is currently no way
926 for the boot loader to pass arguments to the kernel. For these
927 architectures, you should supply some command-line options at build
928 time by entering them here. As a minimum, you should specify the
929 memory size and the root device (e.g., mem=64M root=/dev/nfs).
930
931config XIP_KERNEL
932 bool "Kernel Execute-In-Place from ROM"
933 depends on !ZBOOT_ROM
934 help
935 Execute-In-Place allows the kernel to run from non-volatile storage
936 directly addressable by the CPU, such as NOR flash. This saves RAM
937 space since the text section of the kernel is not loaded from flash
938 to RAM. Read-write sections, such as the data section and stack,
939 are still copied to RAM. The XIP kernel is not compressed since
940 it has to run directly from flash, so it will take more space to
941 store it. The flash address used to link the kernel object files,
942 and for storing it, is configuration dependent. Therefore, if you
943 say Y here, you must know the proper physical address where to
944 store the kernel image depending on your own flash memory usage.
945
946 Also note that the make target becomes "make xipImage" rather than
947 "make zImage" or "make Image". The final kernel binary to put in
948 ROM memory will be arch/arm/boot/xipImage.
949
950 If unsure, say N.
951
952config XIP_PHYS_ADDR
953 hex "XIP Kernel Physical Location"
954 depends on XIP_KERNEL
955 default "0x00080000"
956 help
957 This is the physical address in your flash memory the kernel will
958 be linked for and stored to. This address is dependent on your
959 own flash usage.
960
Richard Purdiec587e4a2007-02-06 21:29:00 +0100961config KEXEC
962 bool "Kexec system call (EXPERIMENTAL)"
963 depends on EXPERIMENTAL
964 help
965 kexec is a system call that implements the ability to shutdown your
966 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200967 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +0100968 you can start any kernel with it, not just Linux.
969
970 It is an ongoing process to be certain the hardware in a machine
971 is properly shutdown, so do not be surprised if this code does not
972 initially work for you. It may help to enable device hotplugging
973 support.
974
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100975config ATAGS_PROC
976 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +0100977 depends on KEXEC
978 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100979 help
980 Should the atags used to boot the kernel be exported in an "atags"
981 file in procfs. Useful with kexec.
982
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983endmenu
984
Russell King9e2697f2007-12-14 13:30:14 +0000985if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986
987menu "CPU Frequency scaling"
988
989source "drivers/cpufreq/Kconfig"
990
991config CPU_FREQ_SA1100
992 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +0100993 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 -0700994 default y
995
996config CPU_FREQ_SA1110
997 bool
998 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
999 default y
1000
1001config CPU_FREQ_INTEGRATOR
1002 tristate "CPUfreq driver for ARM Integrator CPUs"
1003 depends on ARCH_INTEGRATOR && CPU_FREQ
1004 default y
1005 help
1006 This enables the CPUfreq driver for ARM Integrator CPUs.
1007
1008 For details, take a look at <file:Documentation/cpu-freq>.
1009
1010 If in doubt, say Y.
1011
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +01001012config CPU_FREQ_IMX
1013 tristate "CPUfreq driver for i.MX CPUs"
1014 depends on ARCH_IMX && CPU_FREQ
1015 default n
1016 help
1017 This enables the CPUfreq driver for i.MX CPUs.
1018
1019 If in doubt, say N.
1020
Russell King9e2697f2007-12-14 13:30:14 +00001021config CPU_FREQ_PXA
1022 bool
1023 depends on CPU_FREQ && ARCH_PXA && PXA25x
1024 default y
1025 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1026
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027endmenu
1028
1029endif
1030
1031menu "Floating point emulation"
1032
1033comment "At least one emulation must be selected"
1034
1035config FPE_NWFPE
1036 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001037 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038 ---help---
1039 Say Y to include the NWFPE floating point emulator in the kernel.
1040 This is necessary to run most binaries. Linux does not currently
1041 support floating point hardware so you need to say Y here even if
1042 your machine has an FPA or floating point co-processor podule.
1043
1044 You may say N here if you are going to load the Acorn FPEmulator
1045 early in the bootup.
1046
1047config FPE_NWFPE_XP
1048 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001049 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050 help
1051 Say Y to include 80-bit support in the kernel floating-point
1052 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1053 Note that gcc does not generate 80-bit operations by default,
1054 so in most cases this option only enlarges the size of the
1055 floating point emulator without any good reason.
1056
1057 You almost surely want to say N here.
1058
1059config FPE_FASTFPE
1060 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001061 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062 ---help---
1063 Say Y here to include the FAST floating point emulator in the kernel.
1064 This is an experimental much faster emulator which now also has full
1065 precision for the mantissa. It does not support any exceptions.
1066 It is very simple, and approximately 3-6 times faster than NWFPE.
1067
1068 It should be sufficient for most programs. It may be not suitable
1069 for scientific calculations, but you have to check this for yourself.
1070 If you do not feel you need a faster FP emulation you should better
1071 choose NWFPE.
1072
1073config VFP
1074 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001075 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076 help
1077 Say Y to include VFP support code in the kernel. This is needed
1078 if your hardware includes a VFP unit.
1079
1080 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1081 release notes and additional status information.
1082
1083 Say N if your target does not have VFP hardware.
1084
Catalin Marinas25ebee02007-09-25 15:22:24 +01001085config VFPv3
1086 bool
1087 depends on VFP
1088 default y if CPU_V7
1089
Catalin Marinasb5872db2008-01-10 19:16:17 +01001090config NEON
1091 bool "Advanced SIMD (NEON) Extension support"
1092 depends on VFPv3 && CPU_V7
1093 help
1094 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1095 Extension.
1096
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097endmenu
1098
1099menu "Userspace binary formats"
1100
1101source "fs/Kconfig.binfmt"
1102
1103config ARTHUR
1104 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001105 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106 help
1107 Say Y here to include the kernel code necessary if you want to run
1108 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1109 experimental; if this sounds frightening, say N and sleep in peace.
1110 You can also say M here to compile this support as a module (which
1111 will be called arthur).
1112
1113endmenu
1114
1115menu "Power management options"
1116
Russell Kingeceab4a2005-11-15 11:31:41 +00001117source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118
Johannes Bergf4cb5702007-12-08 02:14:00 +01001119config ARCH_SUSPEND_POSSIBLE
1120 def_bool y
1121
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122endmenu
1123
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001124source "net/Kconfig"
1125
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126menu "Device Drivers"
1127
1128source "drivers/base/Kconfig"
1129
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001130source "drivers/connector/Kconfig"
1131
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001132if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133source "drivers/mtd/Kconfig"
1134endif
1135
1136source "drivers/parport/Kconfig"
1137
1138source "drivers/pnp/Kconfig"
1139
1140source "drivers/block/Kconfig"
1141
Russell King58273e52007-10-12 22:24:09 +01001142# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1143
1144source "drivers/misc/Kconfig"
1145
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001147
1148source "drivers/scsi/Kconfig"
1149
Martin Michlmayreb370f02006-11-17 00:14:35 +01001150source "drivers/ata/Kconfig"
1151
Linus Torvalds1da177e2005-04-16 15:20:36 -07001152source "drivers/md/Kconfig"
1153
1154source "drivers/message/fusion/Kconfig"
1155
1156source "drivers/ieee1394/Kconfig"
1157
1158source "drivers/message/i2o/Kconfig"
1159
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001160source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161
1162source "drivers/isdn/Kconfig"
1163
1164# input before char - char/joystick depends on it. As does USB.
1165
1166source "drivers/input/Kconfig"
1167
1168source "drivers/char/Kconfig"
1169
1170source "drivers/i2c/Kconfig"
1171
David Brownell8ae12a02006-01-08 13:34:19 -08001172source "drivers/spi/Kconfig"
1173
David Brownella9c5fff2008-02-04 22:28:17 -08001174source "drivers/gpio/Kconfig"
1175
Alessandro Zummo04916c02006-03-10 22:30:01 +00001176source "drivers/w1/Kconfig"
1177
Russell King58273e52007-10-12 22:24:09 +01001178source "drivers/power/Kconfig"
1179
Jean Delvaread2f9312005-07-02 18:15:49 +02001180source "drivers/hwmon/Kconfig"
1181
Russell King70dfa3f2007-11-07 14:13:35 +00001182source "drivers/watchdog/Kconfig"
1183
Russell King58273e52007-10-12 22:24:09 +01001184source "drivers/ssb/Kconfig"
1185
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186#source "drivers/l3/Kconfig"
1187
Russell Kinga4e137a2005-08-18 10:06:59 +01001188source "drivers/mfd/Kconfig"
1189
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190source "drivers/media/Kconfig"
1191
1192source "drivers/video/Kconfig"
1193
1194source "sound/Kconfig"
1195
Sascha Hauerc2dade52006-12-12 10:32:42 +01001196source "drivers/hid/Kconfig"
1197
Linus Torvalds1da177e2005-04-16 15:20:36 -07001198source "drivers/usb/Kconfig"
1199
1200source "drivers/mmc/Kconfig"
1201
Russell King58273e52007-10-12 22:24:09 +01001202source "drivers/leds/Kconfig"
1203
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001204source "drivers/rtc/Kconfig"
1205
Dan Williams58168152007-01-02 11:10:43 -07001206source "drivers/dma/Kconfig"
1207
Dan Williamsabf07b12008-01-18 23:26:10 +01001208source "drivers/dca/Kconfig"
1209
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001210source "drivers/uio/Kconfig"
1211
Linus Torvalds1da177e2005-04-16 15:20:36 -07001212endmenu
1213
1214source "fs/Kconfig"
1215
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216source "arch/arm/Kconfig.debug"
1217
1218source "security/Kconfig"
1219
1220source "crypto/Kconfig"
1221
1222source "lib/Kconfig"