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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
Alessandro Zummo12b824f2006-03-27 01:16:35 -080011 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000012 select SYS_SUPPORTS_APM_EMULATION
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050013 select HAVE_OPROFILE
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050014 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080015 select HAVE_KRETPROBES if (HAVE_KPROBES)
Linus Torvalds1da177e2005-04-16 15:20:36 -070016 help
17 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000018 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070019 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000020 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070021 Europe. There is an ARM Linux project with a web page at
22 <http://www.arm.linux.org.uk/>.
23
Ralf Baechle75e71532007-02-09 17:08:58 +000024config SYS_SUPPORTS_APM_EMULATION
25 bool
26
David Brownell0a938b92007-03-05 00:30:18 -080027config GENERIC_GPIO
28 bool
29 default n
30
Kevin Hilman746140c2006-09-22 00:16:30 +010031config GENERIC_TIME
32 bool
33 default n
34
Kevin Hilman0567a0c2007-03-13 20:29:24 +010035config GENERIC_CLOCKEVENTS
36 bool
37 default n
38
Catalin Marinasa8655e82008-02-04 17:30:57 +010039config GENERIC_CLOCKEVENTS_BROADCAST
40 bool
41 depends on GENERIC_CLOCKEVENTS
42 default y if SMP && !LOCAL_TIMERS
43
Linus Torvalds1da177e2005-04-16 15:20:36 -070044config MMU
45 bool
46 default y
47
Al Viro5ea81762007-02-11 15:41:31 +000048config NO_IOPORT
49 bool
50 default n
51
Linus Torvalds1da177e2005-04-16 15:20:36 -070052config EISA
53 bool
54 ---help---
55 The Extended Industry Standard Architecture (EISA) bus was
56 developed as an open alternative to the IBM MicroChannel bus.
57
58 The EISA bus provided some of the features of the IBM MicroChannel
59 bus while maintaining backward compatibility with cards made for
60 the older ISA bus. The EISA bus saw limited use between 1988 and
61 1995 when it was made obsolete by the PCI bus.
62
63 Say Y here if you are building a kernel for an EISA-based machine.
64
65 Otherwise, say N.
66
67config SBUS
68 bool
69
70config MCA
71 bool
72 help
73 MicroChannel Architecture is found in some IBM PS/2 machines and
74 laptops. It is a bus system similar to PCI or ISA. See
75 <file:Documentation/mca.txt> (and especially the web page given
76 there) before attempting to build an MCA bus kernel.
77
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010078config GENERIC_HARDIRQS
79 bool
80 default y
81
Russell Kingf16fb1e2007-04-28 09:59:37 +010082config STACKTRACE_SUPPORT
83 bool
84 default y
85
86config LOCKDEP_SUPPORT
87 bool
88 default y
89
Russell King7ad1bcb2006-08-27 12:07:02 +010090config TRACE_IRQFLAGS_SUPPORT
91 bool
92 default y
93
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010094config HARDIRQS_SW_RESEND
95 bool
96 default y
97
98config GENERIC_IRQ_PROBE
99 bool
100 default y
101
Nick Piggin95c354f2008-01-30 13:31:20 +0100102config GENERIC_LOCKBREAK
103 bool
104 default y
105 depends on SMP && PREEMPT
106
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107config RWSEM_GENERIC_SPINLOCK
108 bool
109 default y
110
111config RWSEM_XCHGADD_ALGORITHM
112 bool
113
David Howellsf0d1b0b2006-12-08 02:37:49 -0800114config ARCH_HAS_ILOG2_U32
115 bool
116 default n
117
118config ARCH_HAS_ILOG2_U64
119 bool
120 default n
121
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800122config GENERIC_HWEIGHT
123 bool
124 default y
125
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126config GENERIC_CALIBRATE_DELAY
127 bool
128 default y
129
David Howellsb0b933c2008-02-08 04:19:27 -0800130config ARCH_SUPPORTS_AOUT
131 def_bool y
132
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100133config ARCH_MAY_HAVE_PC_FDC
134 bool
135
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800136config ZONE_DMA
137 bool
138 default y
139
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140config GENERIC_ISA_DMA
141 bool
142
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143config FIQ
144 bool
145
Al Viro034d2f52005-12-19 16:27:59 -0500146config ARCH_MTD_XIP
147 bool
148
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500149if OPROFILE
150
151config OPROFILE_ARMV6
152 def_bool y
153 depends on CPU_V6 && !SMP
154 select OPROFILE_ARM11_CORE
155
156config OPROFILE_MPCORE
157 def_bool y
158 depends on CPU_V6 && SMP
159 select OPROFILE_ARM11_CORE
160
161config OPROFILE_ARM11_CORE
162 bool
163
164endif
165
Hyok S. Choic760fc12006-03-27 15:18:50 +0100166config VECTORS_BASE
167 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900168 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100169 default DRAM_BASE if REMAP_VECTORS_TO_RAM
170 default 0x00000000
171 help
172 The base address of exception vectors.
173
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174source "init/Kconfig"
175
176menu "System Type"
177
178choice
179 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000180 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100182config ARCH_AAEC2000
183 bool "Agilent AAEC-2000 based"
184 select ARM_AMBA
185 help
186 This enables support for systems based on the Agilent AAEC-2000
187
188config ARCH_INTEGRATOR
189 bool "ARM Ltd. Integrator family"
190 select ARM_AMBA
191 select ICST525
192 help
193 Support for ARM's Integrator platform.
194
195config ARCH_REALVIEW
196 bool "ARM Ltd. RealView family"
197 select ARM_AMBA
198 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100199 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100200 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100201 help
202 This enables support for ARM Ltd RealView boards.
203
204config ARCH_VERSATILE
205 bool "ARM Ltd. Versatile family"
206 select ARM_AMBA
207 select ARM_VIC
208 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100209 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100210 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100211 help
212 This enables support for ARM Ltd Versatile board.
213
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100214config ARCH_AT91
215 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800216 select GENERIC_GPIO
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100217 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100218 This enables support for systems based on the Atmel AT91RM9200,
219 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100220
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100222 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100224 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000225 select NO_IOPORT
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100226 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000227 help
228 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229
230config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100231 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000232 help
233 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234
235config ARCH_CO285
236 bool "Co-EBSA285"
237 select FOOTBRIDGE
238 select FOOTBRIDGE_ADDIN
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100239 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000240 help
241 Support for Intel's EBSA285 companion chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242
243config ARCH_EBSA110
244 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100245 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000246 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 help
248 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000249 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250 Ethernet interface, two PCMCIA sockets, two serial ports and a
251 parallel port.
252
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000253config ARCH_EP93XX
254 bool "EP93xx-based"
255 select ARM_AMBA
256 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100257 select GENERIC_GPIO
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000258 help
259 This enables support for the Cirrus EP93xx series of CPUs.
260
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261config ARCH_FOOTBRIDGE
262 bool "FootBridge"
263 select FOOTBRIDGE
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100264 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000265 help
266 Support for systems based on the DC21285 companion chip
267 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100269config ARCH_NETX
270 bool "Hilscher NetX based"
271 select ARM_VIC
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000272 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100273 This enables support for systems based on the Hilscher NetX Soc
274
275config ARCH_H720X
276 bool "Hynix HMS720x-based"
277 select ISA_DMA_API
278 help
279 This enables support for systems based on the Hynix HMS720x
280
281config ARCH_IMX
282 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100283 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100284 select GENERIC_TIME
285 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100286 help
287 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288
Russell King3b938be2007-05-12 11:25:44 +0100289config ARCH_IOP13XX
290 bool "IOP13xx-based"
291 depends on MMU
292 select PLAT_IOP
293 select PCI
294 select ARCH_SUPPORTS_MSI
295 help
296 Support for Intel's IOP13XX (XScale) family of processors.
297
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100298config ARCH_IOP32X
299 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100300 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100301 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100302 select PCI
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100303 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000304 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100305 Support for Intel's 80219 and IOP32X (XScale) family of
306 processors.
307
308config ARCH_IOP33X
309 bool "IOP33x-based"
310 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100311 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100312 select PCI
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100313 select HAVE_IDE
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100314 help
315 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316
Russell King3b938be2007-05-12 11:25:44 +0100317config ARCH_IXP23XX
318 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100319 depends on MMU
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100320 select HAVE_IDE
Russell King3b938be2007-05-12 11:25:44 +0100321 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100322 help
Russell King3b938be2007-05-12 11:25:44 +0100323 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324
325config ARCH_IXP2000
326 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100327 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100328 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000329 help
330 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331
Russell King3b938be2007-05-12 11:25:44 +0100332config ARCH_IXP4XX
333 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100334 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100335 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100336 select GENERIC_TIME
337 select GENERIC_CLOCKEVENTS
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100338 select HAVE_IDE
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
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100345 select HAVE_IDE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 help
347 Say Y here if you intend to run this kernel on a LinkUp Systems
348 L7200 Software Development Board which uses an ARM720T processor.
349 Information on this board can be obtained at:
350
351 <http://www.linkupsys.com/>
352
353 If you have any questions or comments about the Linux kernel port
354 to this board, send e-mail to <sjhill@cotw.com>.
355
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100356config ARCH_KS8695
357 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100358 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100359 help
360 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
361 System-on-Chip devices.
362
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100363config ARCH_NS9XXX
364 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100365 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100366 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100367 select GENERIC_CLOCKEVENTS
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100368 help
369 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
370 System.
371
372 <http://www.digi.com/products/microprocessors/index.jsp>
373
Quinn Jensen52c543f2007-07-09 22:06:53 +0100374config ARCH_MXC
375 bool "Freescale MXC/iMX-based"
376 select ARCH_MTD_XIP
377 help
378 Support for Freescale MXC/iMX-based family of processors
379
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400380config ARCH_ORION
381 bool "Marvell Orion"
382 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400383 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400384 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400385 select GENERIC_TIME
386 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400387 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400388 help
389 Support for Marvell Orion System on Chip family.
390
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
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100401 select HAVE_IDE
Philipp Zabel1c44f5f2008-02-04 22:28:22 -0800402 select HAVE_GPIO_LIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100403 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100404 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000405 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000406 help
eric miao2c8086a2007-09-11 19:13:17 -0700407 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408
409config ARCH_RPC
410 bool "RiscPC"
411 select ARCH_ACORN
412 select FIQ
413 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100414 select ARCH_MAY_HAVE_PC_FDC
Russell King065909b2006-01-04 15:44:16 +0000415 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000416 select NO_IOPORT
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100417 select HAVE_IDE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 help
419 On the Acorn Risc-PC, Linux can support the internal IDE disk and
420 CD-ROM interface, serial and parallel port, and the floppy drive.
421
422config ARCH_SA1100
423 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100424 select ISA
Russell King3cd9e192005-06-25 19:29:34 +0100425 select ARCH_DISCONTIGMEM_ENABLE
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
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100429 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000430 help
431 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432
433config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100434 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800435 select GENERIC_GPIO
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100436 select HAVE_IDE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437 help
438 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
439 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000440 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441
442config ARCH_SHARK
443 bool "Shark"
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100444 select HAVE_IDE
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"
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100454 select HAVE_IDE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455 help
456 Say Y here for systems based on one of the Sharp LH7A40X
457 System on a Chip processors. These CPUs include an ARM922T
458 core with a wide array of integrated devices for
459 hand-held and low-power applications.
460
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100461config ARCH_DAVINCI
462 bool "TI DaVinci"
463 select GENERIC_TIME
464 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100465 select GENERIC_GPIO
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100466 help
467 Support for TI's DaVinci platform.
468
Russell King3b938be2007-05-12 11:25:44 +0100469config ARCH_OMAP
470 bool "TI OMAP"
471 select GENERIC_GPIO
472 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
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400520source "arch/arm/mach-orion/Kconfig"
521
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)"
Catalin Marinas41579f42008-02-04 17:47:04 +0100657 depends on EXPERIMENTAL && REALVIEW_EB_ARM11MP
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"
Catalin Marinas41579f42008-02-04 17:47:04 +0100690 depends on SMP && REALVIEW_EB_ARM11MP
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
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700781config NODES_SHIFT
782 int
783 default "4" if ARCH_LH7A40X
784 default "2"
785 depends on NEED_MULTIPLE_NODES
786
Dave Hansen3f22ab22005-06-23 00:07:43 -0700787source "mm/Kconfig"
788
Linus Torvalds1da177e2005-04-16 15:20:36 -0700789config LEDS
790 bool "Timer and CPU usage LEDs"
791 depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
792 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
793 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
794 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000795 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100796 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400797 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798 help
799 If you say Y here, the LEDs on your machine will be used
800 to provide useful information about your current system status.
801
802 If you are compiling a kernel for a NetWinder or EBSA-285, you will
803 be able to select which LEDs are active using the options below. If
804 you are compiling a kernel for the EBSA-110 or the LART however, the
805 red LED will simply flash regularly to indicate that the system is
806 still functional. It is safe to say Y here if you have a CATS
807 system, but the driver will do nothing.
808
809config LEDS_TIMER
810 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700811 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
812 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700813 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100814 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700815 default y if ARCH_EBSA110
816 help
817 If you say Y here, one of the system LEDs (the green one on the
818 NetWinder, the amber one on the EBSA285, or the red one on the LART)
819 will flash regularly to indicate that the system is still
820 operational. This is mainly useful to kernel hackers who are
821 debugging unstable kernels.
822
823 The LART uses the same LED for both Timer LED and CPU usage LED
824 functions. You may choose to use both, but the Timer LED function
825 will overrule the CPU usage LED.
826
827config LEDS_CPU
828 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700829 !ARCH_OMAP) \
830 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
831 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700832 depends on LEDS
833 help
834 If you say Y here, the red LED will be used to give a good real
835 time indication of CPU usage, by lighting whenever the idle task
836 is not currently executing.
837
838 The LART uses the same LED for both Timer LED and CPU usage LED
839 functions. You may choose to use both, but the Timer LED function
840 will overrule the CPU usage LED.
841
842config ALIGNMENT_TRAP
843 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900844 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845 default y if !ARCH_EBSA110
846 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200847 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
849 address divisible by 4. On 32-bit ARM processors, these non-aligned
850 fetch/store instructions will be emulated in software if you say
851 here, which has a severe performance impact. This is necessary for
852 correct operation of some network protocols. With an IP-only
853 configuration it is safe to say N, otherwise say Y.
854
855endmenu
856
857menu "Boot options"
858
859# Compressed boot loader in ROM. Yes, we really want to ask about
860# TEXT and BSS so we preserve their values in the config files.
861config ZBOOT_ROM_TEXT
862 hex "Compressed ROM boot loader base address"
863 default "0"
864 help
865 The physical address at which the ROM-able zImage is to be
866 placed in the target. Platforms which normally make use of
867 ROM-able zImage formats normally set this to a suitable
868 value in their defconfig file.
869
870 If ZBOOT_ROM is not enabled, this has no effect.
871
872config ZBOOT_ROM_BSS
873 hex "Compressed ROM boot loader BSS address"
874 default "0"
875 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100876 The base address of an area of read/write memory in the target
877 for the ROM-able zImage which must be available while the
878 decompressor is running. It must be large enough to hold the
879 entire decompressed kernel plus an additional 128 KiB.
880 Platforms which normally make use of ROM-able zImage formats
881 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882
883 If ZBOOT_ROM is not enabled, this has no effect.
884
885config ZBOOT_ROM
886 bool "Compressed boot loader in ROM/flash"
887 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
888 help
889 Say Y here if you intend to execute your compressed kernel image
890 (zImage) directly from ROM or flash. If unsure, say N.
891
892config CMDLINE
893 string "Default kernel command string"
894 default ""
895 help
896 On some architectures (EBSA110 and CATS), there is currently no way
897 for the boot loader to pass arguments to the kernel. For these
898 architectures, you should supply some command-line options at build
899 time by entering them here. As a minimum, you should specify the
900 memory size and the root device (e.g., mem=64M root=/dev/nfs).
901
902config XIP_KERNEL
903 bool "Kernel Execute-In-Place from ROM"
904 depends on !ZBOOT_ROM
905 help
906 Execute-In-Place allows the kernel to run from non-volatile storage
907 directly addressable by the CPU, such as NOR flash. This saves RAM
908 space since the text section of the kernel is not loaded from flash
909 to RAM. Read-write sections, such as the data section and stack,
910 are still copied to RAM. The XIP kernel is not compressed since
911 it has to run directly from flash, so it will take more space to
912 store it. The flash address used to link the kernel object files,
913 and for storing it, is configuration dependent. Therefore, if you
914 say Y here, you must know the proper physical address where to
915 store the kernel image depending on your own flash memory usage.
916
917 Also note that the make target becomes "make xipImage" rather than
918 "make zImage" or "make Image". The final kernel binary to put in
919 ROM memory will be arch/arm/boot/xipImage.
920
921 If unsure, say N.
922
923config XIP_PHYS_ADDR
924 hex "XIP Kernel Physical Location"
925 depends on XIP_KERNEL
926 default "0x00080000"
927 help
928 This is the physical address in your flash memory the kernel will
929 be linked for and stored to. This address is dependent on your
930 own flash usage.
931
Richard Purdiec587e4a2007-02-06 21:29:00 +0100932config KEXEC
933 bool "Kexec system call (EXPERIMENTAL)"
934 depends on EXPERIMENTAL
935 help
936 kexec is a system call that implements the ability to shutdown your
937 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200938 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +0100939 you can start any kernel with it, not just Linux.
940
941 It is an ongoing process to be certain the hardware in a machine
942 is properly shutdown, so do not be surprised if this code does not
943 initially work for you. It may help to enable device hotplugging
944 support.
945
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100946config ATAGS_PROC
947 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +0100948 depends on KEXEC
949 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100950 help
951 Should the atags used to boot the kernel be exported in an "atags"
952 file in procfs. Useful with kexec.
953
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954endmenu
955
Russell King9e2697f2007-12-14 13:30:14 +0000956if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
958menu "CPU Frequency scaling"
959
960source "drivers/cpufreq/Kconfig"
961
962config CPU_FREQ_SA1100
963 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +0100964 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 -0700965 default y
966
967config CPU_FREQ_SA1110
968 bool
969 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
970 default y
971
972config CPU_FREQ_INTEGRATOR
973 tristate "CPUfreq driver for ARM Integrator CPUs"
974 depends on ARCH_INTEGRATOR && CPU_FREQ
975 default y
976 help
977 This enables the CPUfreq driver for ARM Integrator CPUs.
978
979 For details, take a look at <file:Documentation/cpu-freq>.
980
981 If in doubt, say Y.
982
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +0100983config CPU_FREQ_IMX
984 tristate "CPUfreq driver for i.MX CPUs"
985 depends on ARCH_IMX && CPU_FREQ
986 default n
987 help
988 This enables the CPUfreq driver for i.MX CPUs.
989
990 If in doubt, say N.
991
Russell King9e2697f2007-12-14 13:30:14 +0000992config CPU_FREQ_PXA
993 bool
994 depends on CPU_FREQ && ARCH_PXA && PXA25x
995 default y
996 select CPU_FREQ_DEFAULT_GOV_USERSPACE
997
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998endmenu
999
1000endif
1001
1002menu "Floating point emulation"
1003
1004comment "At least one emulation must be selected"
1005
1006config FPE_NWFPE
1007 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001008 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009 ---help---
1010 Say Y to include the NWFPE floating point emulator in the kernel.
1011 This is necessary to run most binaries. Linux does not currently
1012 support floating point hardware so you need to say Y here even if
1013 your machine has an FPA or floating point co-processor podule.
1014
1015 You may say N here if you are going to load the Acorn FPEmulator
1016 early in the bootup.
1017
1018config FPE_NWFPE_XP
1019 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001020 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001021 help
1022 Say Y to include 80-bit support in the kernel floating-point
1023 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1024 Note that gcc does not generate 80-bit operations by default,
1025 so in most cases this option only enlarges the size of the
1026 floating point emulator without any good reason.
1027
1028 You almost surely want to say N here.
1029
1030config FPE_FASTFPE
1031 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001032 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033 ---help---
1034 Say Y here to include the FAST floating point emulator in the kernel.
1035 This is an experimental much faster emulator which now also has full
1036 precision for the mantissa. It does not support any exceptions.
1037 It is very simple, and approximately 3-6 times faster than NWFPE.
1038
1039 It should be sufficient for most programs. It may be not suitable
1040 for scientific calculations, but you have to check this for yourself.
1041 If you do not feel you need a faster FP emulation you should better
1042 choose NWFPE.
1043
1044config VFP
1045 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001046 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047 help
1048 Say Y to include VFP support code in the kernel. This is needed
1049 if your hardware includes a VFP unit.
1050
1051 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1052 release notes and additional status information.
1053
1054 Say N if your target does not have VFP hardware.
1055
Catalin Marinas25ebee02007-09-25 15:22:24 +01001056config VFPv3
1057 bool
1058 depends on VFP
1059 default y if CPU_V7
1060
Catalin Marinasb5872db2008-01-10 19:16:17 +01001061config NEON
1062 bool "Advanced SIMD (NEON) Extension support"
1063 depends on VFPv3 && CPU_V7
1064 help
1065 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1066 Extension.
1067
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068endmenu
1069
1070menu "Userspace binary formats"
1071
1072source "fs/Kconfig.binfmt"
1073
1074config ARTHUR
1075 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001076 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077 help
1078 Say Y here to include the kernel code necessary if you want to run
1079 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1080 experimental; if this sounds frightening, say N and sleep in peace.
1081 You can also say M here to compile this support as a module (which
1082 will be called arthur).
1083
1084endmenu
1085
1086menu "Power management options"
1087
Russell Kingeceab4a2005-11-15 11:31:41 +00001088source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001089
Johannes Bergf4cb5702007-12-08 02:14:00 +01001090config ARCH_SUSPEND_POSSIBLE
1091 def_bool y
1092
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093endmenu
1094
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001095source "net/Kconfig"
1096
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097menu "Device Drivers"
1098
1099source "drivers/base/Kconfig"
1100
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001101source "drivers/connector/Kconfig"
1102
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001103if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104source "drivers/mtd/Kconfig"
1105endif
1106
1107source "drivers/parport/Kconfig"
1108
1109source "drivers/pnp/Kconfig"
1110
1111source "drivers/block/Kconfig"
1112
Russell King58273e52007-10-12 22:24:09 +01001113# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1114
1115source "drivers/misc/Kconfig"
1116
Linus Torvalds1da177e2005-04-16 15:20:36 -07001117source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118
1119source "drivers/scsi/Kconfig"
1120
Martin Michlmayreb370f02006-11-17 00:14:35 +01001121source "drivers/ata/Kconfig"
1122
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123source "drivers/md/Kconfig"
1124
1125source "drivers/message/fusion/Kconfig"
1126
1127source "drivers/ieee1394/Kconfig"
1128
1129source "drivers/message/i2o/Kconfig"
1130
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001131source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132
1133source "drivers/isdn/Kconfig"
1134
1135# input before char - char/joystick depends on it. As does USB.
1136
1137source "drivers/input/Kconfig"
1138
1139source "drivers/char/Kconfig"
1140
1141source "drivers/i2c/Kconfig"
1142
David Brownell8ae12a02006-01-08 13:34:19 -08001143source "drivers/spi/Kconfig"
1144
David Brownella9c5fff2008-02-04 22:28:17 -08001145source "drivers/gpio/Kconfig"
1146
Alessandro Zummo04916c02006-03-10 22:30:01 +00001147source "drivers/w1/Kconfig"
1148
Russell King58273e52007-10-12 22:24:09 +01001149source "drivers/power/Kconfig"
1150
Jean Delvaread2f9312005-07-02 18:15:49 +02001151source "drivers/hwmon/Kconfig"
1152
Russell King70dfa3f2007-11-07 14:13:35 +00001153source "drivers/watchdog/Kconfig"
1154
Russell King58273e52007-10-12 22:24:09 +01001155source "drivers/ssb/Kconfig"
1156
Linus Torvalds1da177e2005-04-16 15:20:36 -07001157#source "drivers/l3/Kconfig"
1158
Russell Kinga4e137a2005-08-18 10:06:59 +01001159source "drivers/mfd/Kconfig"
1160
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161source "drivers/media/Kconfig"
1162
1163source "drivers/video/Kconfig"
1164
1165source "sound/Kconfig"
1166
Sascha Hauerc2dade52006-12-12 10:32:42 +01001167source "drivers/hid/Kconfig"
1168
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169source "drivers/usb/Kconfig"
1170
1171source "drivers/mmc/Kconfig"
1172
Russell King58273e52007-10-12 22:24:09 +01001173source "drivers/leds/Kconfig"
1174
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001175source "drivers/rtc/Kconfig"
1176
Dan Williams58168152007-01-02 11:10:43 -07001177source "drivers/dma/Kconfig"
1178
Dan Williamsabf07b12008-01-18 23:26:10 +01001179source "drivers/dca/Kconfig"
1180
Linus Torvalds1da177e2005-04-16 15:20:36 -07001181endmenu
1182
1183source "fs/Kconfig"
1184
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185source "arch/arm/Kconfig.debug"
1186
1187source "security/Kconfig"
1188
1189source "crypto/Kconfig"
1190
1191source "lib/Kconfig"