blob: a91b9ac9a0e5f1b9d45dad833847da1c34d1b1e3 [file] [log] [blame]
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
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100355config ARCH_KS8695
356 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100357 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100358 help
359 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
360 System-on-Chip devices.
361
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100362config ARCH_NS9XXX
363 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100364 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100365 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100366 select GENERIC_CLOCKEVENTS
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100367 help
368 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
369 System.
370
371 <http://www.digi.com/products/microprocessors/index.jsp>
372
Quinn Jensen52c543f2007-07-09 22:06:53 +0100373config ARCH_MXC
374 bool "Freescale MXC/iMX-based"
375 select ARCH_MTD_XIP
376 help
377 Support for Freescale MXC/iMX-based family of processors
378
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400379config ARCH_ORION5X
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400380 bool "Marvell Orion"
381 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400382 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400383 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400384 select GENERIC_TIME
385 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400386 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400387 help
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400388 Support for the following Marvell Orion 5x series SoCs:
389 Orion-1 (5181), Orion-NAS (5182), Orion-2 (5281.)
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400390
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100391config ARCH_PNX4008
392 bool "Philips Nexperia PNX4008 Mobile"
393 help
394 This enables support for Philips PNX4008 mobile platform.
395
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700397 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100398 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500399 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800400 select GENERIC_GPIO
Philipp Zabel1c44f5f2008-02-04 22:28:22 -0800401 select HAVE_GPIO_LIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100402 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100403 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000404 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000405 help
eric miao2c8086a2007-09-11 19:13:17 -0700406 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407
408config ARCH_RPC
409 bool "RiscPC"
410 select ARCH_ACORN
411 select FIQ
412 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100413 select ARCH_MAY_HAVE_PC_FDC
Russell King065909b2006-01-04 15:44:16 +0000414 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000415 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416 help
417 On the Acorn Risc-PC, Linux can support the internal IDE disk and
418 CD-ROM interface, serial and parallel port, and the floppy drive.
419
420config ARCH_SA1100
421 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100422 select ISA
Russell King3cd9e192005-06-25 19:29:34 +0100423 select ARCH_DISCONTIGMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +0000424 select ARCH_SPARSEMEM_ENABLE
425 select ARCH_SELECT_MEMORY_MODEL
Al Viro034d2f52005-12-19 16:27:59 -0500426 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800427 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000428 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100429 select GENERIC_CLOCKEVENTS
430 select TICK_ONESHOT
Dmitry Baryshkov45528e32008-04-10 13:31:47 +0100431 select HAVE_GPIO_LIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000432 help
433 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434
435config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100436 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800437 select GENERIC_GPIO
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438 help
439 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
440 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000441 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442
443config ARCH_SHARK
444 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100445 select ISA
446 select ISA_DMA
447 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000448 help
449 Support for the StrongARM based Digital DNARD machine, also known
450 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451
452config ARCH_LH7A40X
453 bool "Sharp LH7A40X"
454 help
455 Say Y here for systems based on one of the Sharp LH7A40X
456 System on a Chip processors. These CPUs include an ARM922T
457 core with a wide array of integrated devices for
458 hand-held and low-power applications.
459
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100460config ARCH_DAVINCI
461 bool "TI DaVinci"
462 select GENERIC_TIME
463 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100464 select GENERIC_GPIO
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100465 help
466 Support for TI's DaVinci platform.
467
Russell King3b938be2007-05-12 11:25:44 +0100468config ARCH_OMAP
469 bool "TI OMAP"
470 select GENERIC_GPIO
David Brownell52e31342008-03-03 12:43:23 -0800471 select HAVE_GPIO_LIB
Russell King3b938be2007-05-12 11:25:44 +0100472 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700473 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100474 help
475 Support for TI's OMAP platform (OMAP1 and OMAP2).
476
Brian Swetland30421022007-11-26 04:11:43 -0800477config ARCH_MSM7X00A
478 bool "Qualcomm MSM7X00A"
479 select GENERIC_TIME
480 select GENERIC_CLOCKEVENTS
481 help
482 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
483 apps processor of the MSM7X00A and depends on a shared memory
484 interface to the ARM9 modem processor which runs the baseband stack
485 and controls some vital subsystems (clock and power control, etc).
486 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
487
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488endchoice
489
490source "arch/arm/mach-clps711x/Kconfig"
491
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000492source "arch/arm/mach-ep93xx/Kconfig"
493
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494source "arch/arm/mach-footbridge/Kconfig"
495
496source "arch/arm/mach-integrator/Kconfig"
497
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100498source "arch/arm/mach-iop32x/Kconfig"
499
500source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501
Dan Williams285f5fa2006-12-07 02:59:39 +0100502source "arch/arm/mach-iop13xx/Kconfig"
503
Linus Torvalds1da177e2005-04-16 15:20:36 -0700504source "arch/arm/mach-ixp4xx/Kconfig"
505
506source "arch/arm/mach-ixp2000/Kconfig"
507
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100508source "arch/arm/mach-ixp23xx/Kconfig"
509
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510source "arch/arm/mach-pxa/Kconfig"
511
512source "arch/arm/mach-sa1100/Kconfig"
513
Tony Lindgrend48af152005-07-10 19:58:17 +0100514source "arch/arm/plat-omap/Kconfig"
515
516source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517
Tony Lindgren1dbae812005-11-10 14:26:51 +0000518source "arch/arm/mach-omap2/Kconfig"
519
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400520source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400521
Ben Dooksa21765a2007-02-11 18:31:01 +0100522source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100523source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100524
525if ARCH_S3C2410
526source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100528source "arch/arm/mach-s3c2412/Kconfig"
529source "arch/arm/mach-s3c2440/Kconfig"
530source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100531source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100532endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533
534source "arch/arm/mach-lh7a40x/Kconfig"
535
536source "arch/arm/mach-imx/Kconfig"
537
538source "arch/arm/mach-h720x/Kconfig"
539
540source "arch/arm/mach-versatile/Kconfig"
541
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100542source "arch/arm/mach-aaec2000/Kconfig"
543
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000544source "arch/arm/mach-realview/Kconfig"
545
Andrew Victor9d041262007-02-05 11:42:07 +0100546source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000547
Quinn Jensen52c543f2007-07-09 22:06:53 +0100548source "arch/arm/plat-mxc/Kconfig"
549
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100550source "arch/arm/mach-netx/Kconfig"
551
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100552source "arch/arm/mach-ns9xxx/Kconfig"
553
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100554source "arch/arm/mach-davinci/Kconfig"
555
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100556source "arch/arm/mach-ks8695/Kconfig"
557
Brian Swetland9e73c842007-11-26 04:12:13 -0800558source "arch/arm/mach-msm/Kconfig"
559
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560# Definitions to make life easier
561config ARCH_ACORN
562 bool
563
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100564config PLAT_IOP
565 bool
566
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400567config PLAT_ORION
568 bool
569
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570source arch/arm/mm/Kconfig
571
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100572config IWMMXT
573 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100574 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700575 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100576 help
577 Enable support for iWMMXt context switching at run time if
578 running on a CPU that supports it.
579
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
581config XSCALE_PMU
582 bool
583 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
584 default y
585
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100586if !MMU
587source "arch/arm/Kconfig-nommu"
588endif
589
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590endmenu
591
592source "arch/arm/common/Kconfig"
593
594config FORCE_MAX_ZONEORDER
595 int
596 depends on SA1111
597 default "9"
598
599menu "Bus support"
600
601config ARM_AMBA
602 bool
603
604config ISA
605 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606 help
607 Find out whether you have ISA slots on your motherboard. ISA is the
608 name of a bus system, i.e. the way the CPU talks to the other stuff
609 inside your box. Other bus systems are PCI, EISA, MicroChannel
610 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
611 newer boards don't support it. If you have ISA, say Y, otherwise N.
612
Russell King065909b2006-01-04 15:44:16 +0000613# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614config ISA_DMA
615 bool
Russell King065909b2006-01-04 15:44:16 +0000616 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617
Russell King065909b2006-01-04 15:44:16 +0000618# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100619config ISA_DMA_API
620 bool
Al Viro5cae8412005-05-04 05:39:22 +0100621
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100623 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624 help
625 Find out whether you have a PCI motherboard. PCI is the name of a
626 bus system, i.e. the way the CPU talks to the other stuff inside
627 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
628 VESA. If you have PCI, say Y, otherwise N.
629
Matthew Wilcox36e23592007-07-10 10:54:40 -0600630config PCI_SYSCALL
631 def_bool PCI
632
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633# Select the host bridge type
634config PCI_HOST_VIA82C505
635 bool
636 depends on PCI && ARCH_SHARK
637 default y
638
Mike Rapoporta0113a92007-11-25 08:55:34 +0100639config PCI_HOST_ITE8152
640 bool
641 depends on PCI && MACH_ARMCORE
642 default y
643 select DMABOUNCE
644
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645source "drivers/pci/Kconfig"
646
647source "drivers/pcmcia/Kconfig"
648
649endmenu
650
651menu "Kernel Features"
652
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100653source "kernel/time/Kconfig"
654
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655config SMP
656 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100657 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658 help
659 This enables support for systems with more than one CPU. If you have
660 a system with only one CPU, like most personal computers, say N. If
661 you have a system with more than one CPU, say Y.
662
663 If you say N here, the kernel will run on single and multiprocessor
664 machines, but will use only one CPU of a multiprocessor machine. If
665 you say Y here, the kernel will run on many, but not all, single
666 processor machines. On a single processor machine, the kernel will
667 run faster if you say N here.
668
Adrian Bunk03502fa2008-02-03 15:50:21 +0200669 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
671 <http://www.linuxdoc.org/docs.html#howto>.
672
673 If you don't know what to do here, say N.
674
675config NR_CPUS
676 int "Maximum number of CPUs (2-32)"
677 range 2 32
678 depends on SMP
679 default "4"
680
Russell Kinga054a812005-11-02 22:24:33 +0000681config HOTPLUG_CPU
682 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
683 depends on SMP && HOTPLUG && EXPERIMENTAL
684 help
685 Say Y here to experiment with turning CPUs off and on. CPUs
686 can be controlled through /sys/devices/system/cpu.
687
Russell King37ee16a2005-11-08 19:08:05 +0000688config LOCAL_TIMERS
689 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100690 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000691 default y
692 help
693 Enable support for local timers on SMP platforms, rather then the
694 legacy IPI broadcast method. Local timers allows the system
695 accounting to be spread across the timer interval, preventing a
696 "thundering herd" at every timer tick.
697
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698config PREEMPT
699 bool "Preemptible Kernel (EXPERIMENTAL)"
700 depends on EXPERIMENTAL
701 help
702 This option reduces the latency of the kernel when reacting to
703 real-time or interactive events by allowing a low priority process to
704 be preempted even if it is in kernel mode executing a system call.
705 This allows applications to run more reliably even when the system is
706 under load.
707
708 Say Y here if you are building a kernel for a desktop, embedded
709 or real-time system. Say N if you are unsure.
710
Russell King8749af62005-06-25 19:39:45 +0100711config NO_IDLE_HZ
712 bool "Dynamic tick timer"
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100713 depends on !GENERIC_CLOCKEVENTS
Russell King8749af62005-06-25 19:39:45 +0100714 help
715 Select this option if you want to disable continuous timer ticks
716 and have them programmed to occur as required. This option saves
717 power as the system can remain in idle state for longer.
718
719 By default dynamic tick is disabled during the boot, and can be
720 manually enabled with:
721
722 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
723
724 Alternatively, if you want dynamic tick automatically enabled
725 during boot, pass "dyntick=enable" via the kernel command string.
726
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100727 Please note that dynamic tick may affect the accuracy of
728 timekeeping on some platforms depending on the implementation.
Nicolas Pitre569d2c32005-09-01 12:48:48 +0100729 Currently at least OMAP, PXA2xx and SA11x0 platforms are known
730 to have accurate timekeeping with dynamic tick.
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100731
Russell Kingf8065812006-03-02 22:41:59 +0000732config HZ
733 int
734 default 128 if ARCH_L7200
735 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000736 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100737 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000738 default 100
739
Nicolas Pitre704bdda02006-01-14 16:33:50 +0000740config AEABI
741 bool "Use the ARM EABI to compile the kernel"
742 help
743 This option allows for the kernel to be compiled using the latest
744 ARM ABI (aka EABI). This is only useful if you are using a user
745 space environment that is also compiled with EABI.
746
747 Since there are major incompatibilities between the legacy ABI and
748 EABI, especially with regard to structure member alignment, this
749 option also changes the kernel syscall calling convention to
750 disambiguate both ABIs and allow for backward compatibility support
751 (selected with CONFIG_OABI_COMPAT).
752
753 To use this you need GCC version 4.0.0 or later.
754
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000755config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000756 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000757 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000758 default y
759 help
760 This option preserves the old syscall interface along with the
761 new (ARM EABI) one. It also provides a compatibility layer to
762 intercept syscalls that have structure arguments which layout
763 in memory differs between the legacy ABI and the new ARM EABI
764 (only for non "thumb" binaries). This option adds a tiny
765 overhead to all syscalls and produces a slightly larger kernel.
766 If you know you'll be using only pure EABI user space then you
767 can say N here. If this option is not selected and you attempt
768 to execute a legacy ABI binary then the result will be
769 UNPREDICTABLE (in fact it can be predicted that it won't work
770 at all). If in doubt say Y.
771
Dave Hansen3f22ab22005-06-23 00:07:43 -0700772config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100774 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775 help
776 Say Y to support efficient handling of discontiguous physical memory,
777 for architectures which are either NUMA (Non-Uniform Memory Access)
778 or have huge holes in the physical address space for other reasons.
779 See <file:Documentation/vm/numa> for more.
780
Russell King05944d72006-11-30 20:43:51 +0000781config ARCH_SPARSEMEM_ENABLE
782 bool
783
784config ARCH_SELECT_MEMORY_MODEL
785 bool
786
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700787config NODES_SHIFT
788 int
789 default "4" if ARCH_LH7A40X
790 default "2"
791 depends on NEED_MULTIPLE_NODES
792
Dave Hansen3f22ab22005-06-23 00:07:43 -0700793source "mm/Kconfig"
794
Linus Torvalds1da177e2005-04-16 15:20:36 -0700795config LEDS
796 bool "Timer and CPU usage LEDs"
797 depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
798 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
799 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
800 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000801 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100802 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400803 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804 help
805 If you say Y here, the LEDs on your machine will be used
806 to provide useful information about your current system status.
807
808 If you are compiling a kernel for a NetWinder or EBSA-285, you will
809 be able to select which LEDs are active using the options below. If
810 you are compiling a kernel for the EBSA-110 or the LART however, the
811 red LED will simply flash regularly to indicate that the system is
812 still functional. It is safe to say Y here if you have a CATS
813 system, but the driver will do nothing.
814
815config LEDS_TIMER
816 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700817 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
818 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100820 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821 default y if ARCH_EBSA110
822 help
823 If you say Y here, one of the system LEDs (the green one on the
824 NetWinder, the amber one on the EBSA285, or the red one on the LART)
825 will flash regularly to indicate that the system is still
826 operational. This is mainly useful to kernel hackers who are
827 debugging unstable kernels.
828
829 The LART uses the same LED for both Timer LED and CPU usage LED
830 functions. You may choose to use both, but the Timer LED function
831 will overrule the CPU usage LED.
832
833config LEDS_CPU
834 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700835 !ARCH_OMAP) \
836 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
837 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700838 depends on LEDS
839 help
840 If you say Y here, the red LED will be used to give a good real
841 time indication of CPU usage, by lighting whenever the idle task
842 is not currently executing.
843
844 The LART uses the same LED for both Timer LED and CPU usage LED
845 functions. You may choose to use both, but the Timer LED function
846 will overrule the CPU usage LED.
847
848config ALIGNMENT_TRAP
849 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900850 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851 default y if !ARCH_EBSA110
852 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200853 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
855 address divisible by 4. On 32-bit ARM processors, these non-aligned
856 fetch/store instructions will be emulated in software if you say
857 here, which has a severe performance impact. This is necessary for
858 correct operation of some network protocols. With an IP-only
859 configuration it is safe to say N, otherwise say Y.
860
861endmenu
862
863menu "Boot options"
864
865# Compressed boot loader in ROM. Yes, we really want to ask about
866# TEXT and BSS so we preserve their values in the config files.
867config ZBOOT_ROM_TEXT
868 hex "Compressed ROM boot loader base address"
869 default "0"
870 help
871 The physical address at which the ROM-able zImage is to be
872 placed in the target. Platforms which normally make use of
873 ROM-able zImage formats normally set this to a suitable
874 value in their defconfig file.
875
876 If ZBOOT_ROM is not enabled, this has no effect.
877
878config ZBOOT_ROM_BSS
879 hex "Compressed ROM boot loader BSS address"
880 default "0"
881 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100882 The base address of an area of read/write memory in the target
883 for the ROM-able zImage which must be available while the
884 decompressor is running. It must be large enough to hold the
885 entire decompressed kernel plus an additional 128 KiB.
886 Platforms which normally make use of ROM-able zImage formats
887 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888
889 If ZBOOT_ROM is not enabled, this has no effect.
890
891config ZBOOT_ROM
892 bool "Compressed boot loader in ROM/flash"
893 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
894 help
895 Say Y here if you intend to execute your compressed kernel image
896 (zImage) directly from ROM or flash. If unsure, say N.
897
898config CMDLINE
899 string "Default kernel command string"
900 default ""
901 help
902 On some architectures (EBSA110 and CATS), there is currently no way
903 for the boot loader to pass arguments to the kernel. For these
904 architectures, you should supply some command-line options at build
905 time by entering them here. As a minimum, you should specify the
906 memory size and the root device (e.g., mem=64M root=/dev/nfs).
907
908config XIP_KERNEL
909 bool "Kernel Execute-In-Place from ROM"
910 depends on !ZBOOT_ROM
911 help
912 Execute-In-Place allows the kernel to run from non-volatile storage
913 directly addressable by the CPU, such as NOR flash. This saves RAM
914 space since the text section of the kernel is not loaded from flash
915 to RAM. Read-write sections, such as the data section and stack,
916 are still copied to RAM. The XIP kernel is not compressed since
917 it has to run directly from flash, so it will take more space to
918 store it. The flash address used to link the kernel object files,
919 and for storing it, is configuration dependent. Therefore, if you
920 say Y here, you must know the proper physical address where to
921 store the kernel image depending on your own flash memory usage.
922
923 Also note that the make target becomes "make xipImage" rather than
924 "make zImage" or "make Image". The final kernel binary to put in
925 ROM memory will be arch/arm/boot/xipImage.
926
927 If unsure, say N.
928
929config XIP_PHYS_ADDR
930 hex "XIP Kernel Physical Location"
931 depends on XIP_KERNEL
932 default "0x00080000"
933 help
934 This is the physical address in your flash memory the kernel will
935 be linked for and stored to. This address is dependent on your
936 own flash usage.
937
Richard Purdiec587e4a2007-02-06 21:29:00 +0100938config KEXEC
939 bool "Kexec system call (EXPERIMENTAL)"
940 depends on EXPERIMENTAL
941 help
942 kexec is a system call that implements the ability to shutdown your
943 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200944 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +0100945 you can start any kernel with it, not just Linux.
946
947 It is an ongoing process to be certain the hardware in a machine
948 is properly shutdown, so do not be surprised if this code does not
949 initially work for you. It may help to enable device hotplugging
950 support.
951
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100952config ATAGS_PROC
953 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +0100954 depends on KEXEC
955 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100956 help
957 Should the atags used to boot the kernel be exported in an "atags"
958 file in procfs. Useful with kexec.
959
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960endmenu
961
Russell King9e2697f2007-12-14 13:30:14 +0000962if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700963
964menu "CPU Frequency scaling"
965
966source "drivers/cpufreq/Kconfig"
967
968config CPU_FREQ_SA1100
969 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +0100970 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 -0700971 default y
972
973config CPU_FREQ_SA1110
974 bool
975 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
976 default y
977
978config CPU_FREQ_INTEGRATOR
979 tristate "CPUfreq driver for ARM Integrator CPUs"
980 depends on ARCH_INTEGRATOR && CPU_FREQ
981 default y
982 help
983 This enables the CPUfreq driver for ARM Integrator CPUs.
984
985 For details, take a look at <file:Documentation/cpu-freq>.
986
987 If in doubt, say Y.
988
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +0100989config CPU_FREQ_IMX
990 tristate "CPUfreq driver for i.MX CPUs"
991 depends on ARCH_IMX && CPU_FREQ
992 default n
993 help
994 This enables the CPUfreq driver for i.MX CPUs.
995
996 If in doubt, say N.
997
Russell King9e2697f2007-12-14 13:30:14 +0000998config CPU_FREQ_PXA
999 bool
1000 depends on CPU_FREQ && ARCH_PXA && PXA25x
1001 default y
1002 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1003
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004endmenu
1005
1006endif
1007
1008menu "Floating point emulation"
1009
1010comment "At least one emulation must be selected"
1011
1012config FPE_NWFPE
1013 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001014 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015 ---help---
1016 Say Y to include the NWFPE floating point emulator in the kernel.
1017 This is necessary to run most binaries. Linux does not currently
1018 support floating point hardware so you need to say Y here even if
1019 your machine has an FPA or floating point co-processor podule.
1020
1021 You may say N here if you are going to load the Acorn FPEmulator
1022 early in the bootup.
1023
1024config FPE_NWFPE_XP
1025 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001026 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027 help
1028 Say Y to include 80-bit support in the kernel floating-point
1029 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1030 Note that gcc does not generate 80-bit operations by default,
1031 so in most cases this option only enlarges the size of the
1032 floating point emulator without any good reason.
1033
1034 You almost surely want to say N here.
1035
1036config FPE_FASTFPE
1037 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001038 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039 ---help---
1040 Say Y here to include the FAST floating point emulator in the kernel.
1041 This is an experimental much faster emulator which now also has full
1042 precision for the mantissa. It does not support any exceptions.
1043 It is very simple, and approximately 3-6 times faster than NWFPE.
1044
1045 It should be sufficient for most programs. It may be not suitable
1046 for scientific calculations, but you have to check this for yourself.
1047 If you do not feel you need a faster FP emulation you should better
1048 choose NWFPE.
1049
1050config VFP
1051 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001052 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053 help
1054 Say Y to include VFP support code in the kernel. This is needed
1055 if your hardware includes a VFP unit.
1056
1057 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1058 release notes and additional status information.
1059
1060 Say N if your target does not have VFP hardware.
1061
Catalin Marinas25ebee02007-09-25 15:22:24 +01001062config VFPv3
1063 bool
1064 depends on VFP
1065 default y if CPU_V7
1066
Catalin Marinasb5872db2008-01-10 19:16:17 +01001067config NEON
1068 bool "Advanced SIMD (NEON) Extension support"
1069 depends on VFPv3 && CPU_V7
1070 help
1071 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1072 Extension.
1073
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074endmenu
1075
1076menu "Userspace binary formats"
1077
1078source "fs/Kconfig.binfmt"
1079
1080config ARTHUR
1081 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001082 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083 help
1084 Say Y here to include the kernel code necessary if you want to run
1085 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1086 experimental; if this sounds frightening, say N and sleep in peace.
1087 You can also say M here to compile this support as a module (which
1088 will be called arthur).
1089
1090endmenu
1091
1092menu "Power management options"
1093
Russell Kingeceab4a2005-11-15 11:31:41 +00001094source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095
Johannes Bergf4cb5702007-12-08 02:14:00 +01001096config ARCH_SUSPEND_POSSIBLE
1097 def_bool y
1098
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099endmenu
1100
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001101source "net/Kconfig"
1102
Linus Torvalds1da177e2005-04-16 15:20:36 -07001103menu "Device Drivers"
1104
1105source "drivers/base/Kconfig"
1106
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001107source "drivers/connector/Kconfig"
1108
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001109if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110source "drivers/mtd/Kconfig"
1111endif
1112
1113source "drivers/parport/Kconfig"
1114
1115source "drivers/pnp/Kconfig"
1116
1117source "drivers/block/Kconfig"
1118
Russell King58273e52007-10-12 22:24:09 +01001119# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1120
1121source "drivers/misc/Kconfig"
1122
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124
1125source "drivers/scsi/Kconfig"
1126
Martin Michlmayreb370f02006-11-17 00:14:35 +01001127source "drivers/ata/Kconfig"
1128
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129source "drivers/md/Kconfig"
1130
1131source "drivers/message/fusion/Kconfig"
1132
1133source "drivers/ieee1394/Kconfig"
1134
1135source "drivers/message/i2o/Kconfig"
1136
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001137source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001138
1139source "drivers/isdn/Kconfig"
1140
1141# input before char - char/joystick depends on it. As does USB.
1142
1143source "drivers/input/Kconfig"
1144
1145source "drivers/char/Kconfig"
1146
1147source "drivers/i2c/Kconfig"
1148
David Brownell8ae12a02006-01-08 13:34:19 -08001149source "drivers/spi/Kconfig"
1150
David Brownella9c5fff2008-02-04 22:28:17 -08001151source "drivers/gpio/Kconfig"
1152
Alessandro Zummo04916c02006-03-10 22:30:01 +00001153source "drivers/w1/Kconfig"
1154
Russell King58273e52007-10-12 22:24:09 +01001155source "drivers/power/Kconfig"
1156
Jean Delvaread2f9312005-07-02 18:15:49 +02001157source "drivers/hwmon/Kconfig"
1158
Russell King70dfa3f2007-11-07 14:13:35 +00001159source "drivers/watchdog/Kconfig"
1160
Russell King58273e52007-10-12 22:24:09 +01001161source "drivers/ssb/Kconfig"
1162
Linus Torvalds1da177e2005-04-16 15:20:36 -07001163#source "drivers/l3/Kconfig"
1164
Russell Kinga4e137a2005-08-18 10:06:59 +01001165source "drivers/mfd/Kconfig"
1166
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167source "drivers/media/Kconfig"
1168
1169source "drivers/video/Kconfig"
1170
1171source "sound/Kconfig"
1172
Sascha Hauerc2dade52006-12-12 10:32:42 +01001173source "drivers/hid/Kconfig"
1174
Linus Torvalds1da177e2005-04-16 15:20:36 -07001175source "drivers/usb/Kconfig"
1176
1177source "drivers/mmc/Kconfig"
1178
Russell King58273e52007-10-12 22:24:09 +01001179source "drivers/leds/Kconfig"
1180
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001181source "drivers/rtc/Kconfig"
1182
Dan Williams58168152007-01-02 11:10:43 -07001183source "drivers/dma/Kconfig"
1184
Dan Williamsabf07b12008-01-18 23:26:10 +01001185source "drivers/dca/Kconfig"
1186
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001187source "drivers/uio/Kconfig"
1188
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189endmenu
1190
1191source "fs/Kconfig"
1192
Linus Torvalds1da177e2005-04-16 15:20:36 -07001193source "arch/arm/Kconfig.debug"
1194
1195source "security/Kconfig"
1196
1197source "crypto/Kconfig"
1198
1199source "lib/Kconfig"