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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config ARM
9 bool
10 default y
Adrian Bunk2064c942008-04-28 23:44:43 +020011 select HAVE_IDE
Alessandro Zummo12b824f2006-03-27 01:16:35 -080012 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000013 select SYS_SUPPORTS_APM_EMULATION
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050014 select HAVE_OPROFILE
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050015 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080016 select HAVE_KRETPROBES if (HAVE_KPROBES)
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 help
18 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000019 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070020 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000021 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 Europe. There is an ARM Linux project with a web page at
23 <http://www.arm.linux.org.uk/>.
24
Russell King1a189b92008-04-13 21:41:55 +010025config HAVE_PWM
26 bool
27
Ralf Baechle75e71532007-02-09 17:08:58 +000028config SYS_SUPPORTS_APM_EMULATION
29 bool
30
David Brownell0a938b92007-03-05 00:30:18 -080031config GENERIC_GPIO
32 bool
33 default n
34
Kevin Hilman746140c2006-09-22 00:16:30 +010035config GENERIC_TIME
36 bool
37 default n
38
Kevin Hilman0567a0c2007-03-13 20:29:24 +010039config GENERIC_CLOCKEVENTS
40 bool
41 default n
42
Catalin Marinasa8655e82008-02-04 17:30:57 +010043config GENERIC_CLOCKEVENTS_BROADCAST
44 bool
45 depends on GENERIC_CLOCKEVENTS
46 default y if SMP && !LOCAL_TIMERS
47
Linus Torvalds1da177e2005-04-16 15:20:36 -070048config MMU
49 bool
50 default y
51
Al Viro5ea81762007-02-11 15:41:31 +000052config NO_IOPORT
53 bool
54 default n
55
Linus Torvalds1da177e2005-04-16 15:20:36 -070056config EISA
57 bool
58 ---help---
59 The Extended Industry Standard Architecture (EISA) bus was
60 developed as an open alternative to the IBM MicroChannel bus.
61
62 The EISA bus provided some of the features of the IBM MicroChannel
63 bus while maintaining backward compatibility with cards made for
64 the older ISA bus. The EISA bus saw limited use between 1988 and
65 1995 when it was made obsolete by the PCI bus.
66
67 Say Y here if you are building a kernel for an EISA-based machine.
68
69 Otherwise, say N.
70
71config SBUS
72 bool
73
74config MCA
75 bool
76 help
77 MicroChannel Architecture is found in some IBM PS/2 machines and
78 laptops. It is a bus system similar to PCI or ISA. See
79 <file:Documentation/mca.txt> (and especially the web page given
80 there) before attempting to build an MCA bus kernel.
81
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010082config GENERIC_HARDIRQS
83 bool
84 default y
85
Russell Kingf16fb1e2007-04-28 09:59:37 +010086config STACKTRACE_SUPPORT
87 bool
88 default y
89
90config LOCKDEP_SUPPORT
91 bool
92 default y
93
Russell King7ad1bcb2006-08-27 12:07:02 +010094config TRACE_IRQFLAGS_SUPPORT
95 bool
96 default y
97
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010098config HARDIRQS_SW_RESEND
99 bool
100 default y
101
102config GENERIC_IRQ_PROBE
103 bool
104 default y
105
Nick Piggin95c354f2008-01-30 13:31:20 +0100106config GENERIC_LOCKBREAK
107 bool
108 default y
109 depends on SMP && PREEMPT
110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111config RWSEM_GENERIC_SPINLOCK
112 bool
113 default y
114
115config RWSEM_XCHGADD_ALGORITHM
116 bool
117
David Howellsf0d1b0b2006-12-08 02:37:49 -0800118config ARCH_HAS_ILOG2_U32
119 bool
120 default n
121
122config ARCH_HAS_ILOG2_U64
123 bool
124 default n
125
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800126config GENERIC_HWEIGHT
127 bool
128 default y
129
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130config GENERIC_CALIBRATE_DELAY
131 bool
132 default y
133
David Howellsb0b933c2008-02-08 04:19:27 -0800134config ARCH_SUPPORTS_AOUT
135 def_bool y
136
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100137config ARCH_MAY_HAVE_PC_FDC
138 bool
139
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800140config ZONE_DMA
141 bool
142 default y
143
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144config GENERIC_ISA_DMA
145 bool
146
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147config FIQ
148 bool
149
Al Viro034d2f52005-12-19 16:27:59 -0500150config ARCH_MTD_XIP
151 bool
152
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500153if OPROFILE
154
155config OPROFILE_ARMV6
156 def_bool y
157 depends on CPU_V6 && !SMP
158 select OPROFILE_ARM11_CORE
159
160config OPROFILE_MPCORE
161 def_bool y
162 depends on CPU_V6 && SMP
163 select OPROFILE_ARM11_CORE
164
165config OPROFILE_ARM11_CORE
166 bool
167
168endif
169
Hyok S. Choic760fc12006-03-27 15:18:50 +0100170config VECTORS_BASE
171 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900172 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100173 default DRAM_BASE if REMAP_VECTORS_TO_RAM
174 default 0x00000000
175 help
176 The base address of exception vectors.
177
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178source "init/Kconfig"
179
180menu "System Type"
181
182choice
183 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000184 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100186config ARCH_AAEC2000
187 bool "Agilent AAEC-2000 based"
188 select ARM_AMBA
189 help
190 This enables support for systems based on the Agilent AAEC-2000
191
192config ARCH_INTEGRATOR
193 bool "ARM Ltd. Integrator family"
194 select ARM_AMBA
195 select ICST525
196 help
197 Support for ARM's Integrator platform.
198
199config ARCH_REALVIEW
200 bool "ARM Ltd. RealView family"
201 select ARM_AMBA
202 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100203 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100204 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100205 help
206 This enables support for ARM Ltd RealView boards.
207
208config ARCH_VERSATILE
209 bool "ARM Ltd. Versatile family"
210 select ARM_AMBA
211 select ARM_VIC
212 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100213 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100214 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100215 help
216 This enables support for ARM Ltd Versatile board.
217
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100218config ARCH_AT91
219 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800220 select GENERIC_GPIO
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100221 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100222 This enables support for systems based on the Atmel AT91RM9200,
223 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100224
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100226 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100228 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000229 select NO_IOPORT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000230 help
231 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232
233config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100234 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000235 help
236 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237
238config ARCH_CO285
239 bool "Co-EBSA285"
240 select FOOTBRIDGE
241 select FOOTBRIDGE_ADDIN
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000242 help
243 Support for Intel's EBSA285 companion chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244
245config ARCH_EBSA110
246 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100247 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000248 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249 help
250 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000251 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252 Ethernet interface, two PCMCIA sockets, two serial ports and a
253 parallel port.
254
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000255config ARCH_EP93XX
256 bool "EP93xx-based"
257 select ARM_AMBA
258 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100259 select GENERIC_GPIO
Ryan Mallonb6850042008-04-16 02:56:35 +0100260 select HAVE_GPIO_LIB
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000261 help
262 This enables support for the Cirrus EP93xx series of CPUs.
263
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264config ARCH_FOOTBRIDGE
265 bool "FootBridge"
266 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000267 help
268 Support for systems based on the DC21285 companion chip
269 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100271config ARCH_NETX
272 bool "Hilscher NetX based"
273 select ARM_VIC
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000274 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100275 This enables support for systems based on the Hilscher NetX Soc
276
277config ARCH_H720X
278 bool "Hynix HMS720x-based"
279 select ISA_DMA_API
280 help
281 This enables support for systems based on the Hynix HMS720x
282
283config ARCH_IMX
284 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100285 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100286 select GENERIC_TIME
287 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100288 help
289 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290
Russell King3b938be2007-05-12 11:25:44 +0100291config ARCH_IOP13XX
292 bool "IOP13xx-based"
293 depends on MMU
294 select PLAT_IOP
295 select PCI
296 select ARCH_SUPPORTS_MSI
297 help
298 Support for Intel's IOP13XX (XScale) family of processors.
299
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100300config ARCH_IOP32X
301 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100302 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100303 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100304 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000305 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100306 Support for Intel's 80219 and IOP32X (XScale) family of
307 processors.
308
309config ARCH_IOP33X
310 bool "IOP33x-based"
311 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100312 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100313 select PCI
314 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
Russell King3b938be2007-05-12 11:25:44 +0100320 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100321 help
Russell King3b938be2007-05-12 11:25:44 +0100322 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323
324config ARCH_IXP2000
325 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100326 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100327 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000328 help
329 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330
Russell King3b938be2007-05-12 11:25:44 +0100331config ARCH_IXP4XX
332 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100333 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100334 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100335 select GENERIC_TIME
336 select GENERIC_CLOCKEVENTS
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100337 help
Russell King3b938be2007-05-12 11:25:44 +0100338 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100339
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340config ARCH_L7200
341 bool "LinkUp-L7200"
342 select FIQ
343 help
344 Say Y here if you intend to run this kernel on a LinkUp Systems
345 L7200 Software Development Board which uses an ARM720T processor.
346 Information on this board can be obtained at:
347
348 <http://www.linkupsys.com/>
349
350 If you have any questions or comments about the Linux kernel port
351 to this board, send e-mail to <sjhill@cotw.com>.
352
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100353config ARCH_KS8695
354 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100355 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100356 help
357 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
358 System-on-Chip devices.
359
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100360config ARCH_NS9XXX
361 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100362 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100363 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100364 select GENERIC_CLOCKEVENTS
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100365 help
366 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
367 System.
368
369 <http://www.digi.com/products/microprocessors/index.jsp>
370
Quinn Jensen52c543f2007-07-09 22:06:53 +0100371config ARCH_MXC
372 bool "Freescale MXC/iMX-based"
373 select ARCH_MTD_XIP
374 help
375 Support for Freescale MXC/iMX-based family of processors
376
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400377config ARCH_ORION5X
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400378 bool "Marvell Orion"
379 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400380 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400381 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400382 select GENERIC_TIME
383 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400384 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400385 help
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400386 Support for the following Marvell Orion 5x series SoCs:
387 Orion-1 (5181), Orion-NAS (5182), Orion-2 (5281.)
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400388
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100389config ARCH_PNX4008
390 bool "Philips Nexperia PNX4008 Mobile"
391 help
392 This enables support for Philips PNX4008 mobile platform.
393
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700395 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100396 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500397 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800398 select GENERIC_GPIO
Philipp Zabel1c44f5f2008-02-04 22:28:22 -0800399 select HAVE_GPIO_LIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100400 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100401 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000402 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000403 help
eric miao2c8086a2007-09-11 19:13:17 -0700404 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405
406config ARCH_RPC
407 bool "RiscPC"
408 select ARCH_ACORN
409 select FIQ
410 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100411 select ARCH_MAY_HAVE_PC_FDC
Russell King065909b2006-01-04 15:44:16 +0000412 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000413 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414 help
415 On the Acorn Risc-PC, Linux can support the internal IDE disk and
416 CD-ROM interface, serial and parallel port, and the floppy drive.
417
418config ARCH_SA1100
419 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100420 select ISA
Russell King3cd9e192005-06-25 19:29:34 +0100421 select ARCH_DISCONTIGMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +0000422 select ARCH_SPARSEMEM_ENABLE
423 select ARCH_SELECT_MEMORY_MODEL
Al Viro034d2f52005-12-19 16:27:59 -0500424 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800425 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000426 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100427 select GENERIC_CLOCKEVENTS
428 select TICK_ONESHOT
Dmitry Baryshkov45528e32008-04-10 13:31:47 +0100429 select HAVE_GPIO_LIB
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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 help
437 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
438 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000439 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440
441config ARCH_SHARK
442 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100443 select ISA
444 select ISA_DMA
445 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000446 help
447 Support for the StrongARM based Digital DNARD machine, also known
448 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
450config ARCH_LH7A40X
451 bool "Sharp LH7A40X"
452 help
453 Say Y here for systems based on one of the Sharp LH7A40X
454 System on a Chip processors. These CPUs include an ARM922T
455 core with a wide array of integrated devices for
456 hand-held and low-power applications.
457
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100458config ARCH_DAVINCI
459 bool "TI DaVinci"
460 select GENERIC_TIME
461 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100462 select GENERIC_GPIO
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100463 help
464 Support for TI's DaVinci platform.
465
Russell King3b938be2007-05-12 11:25:44 +0100466config ARCH_OMAP
467 bool "TI OMAP"
468 select GENERIC_GPIO
David Brownell52e31342008-03-03 12:43:23 -0800469 select HAVE_GPIO_LIB
Russell King3b938be2007-05-12 11:25:44 +0100470 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700471 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100472 help
473 Support for TI's OMAP platform (OMAP1 and OMAP2).
474
Brian Swetland30421022007-11-26 04:11:43 -0800475config ARCH_MSM7X00A
476 bool "Qualcomm MSM7X00A"
477 select GENERIC_TIME
478 select GENERIC_CLOCKEVENTS
479 help
480 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
481 apps processor of the MSM7X00A and depends on a shared memory
482 interface to the ARM9 modem processor which runs the baseband stack
483 and controls some vital subsystems (clock and power control, etc).
484 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
485
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486endchoice
487
488source "arch/arm/mach-clps711x/Kconfig"
489
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000490source "arch/arm/mach-ep93xx/Kconfig"
491
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492source "arch/arm/mach-footbridge/Kconfig"
493
494source "arch/arm/mach-integrator/Kconfig"
495
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100496source "arch/arm/mach-iop32x/Kconfig"
497
498source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499
Dan Williams285f5fa2006-12-07 02:59:39 +0100500source "arch/arm/mach-iop13xx/Kconfig"
501
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502source "arch/arm/mach-ixp4xx/Kconfig"
503
504source "arch/arm/mach-ixp2000/Kconfig"
505
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100506source "arch/arm/mach-ixp23xx/Kconfig"
507
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508source "arch/arm/mach-pxa/Kconfig"
509
510source "arch/arm/mach-sa1100/Kconfig"
511
Tony Lindgrend48af152005-07-10 19:58:17 +0100512source "arch/arm/plat-omap/Kconfig"
513
514source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700515
Tony Lindgren1dbae812005-11-10 14:26:51 +0000516source "arch/arm/mach-omap2/Kconfig"
517
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400518source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400519
Ben Dooksa21765a2007-02-11 18:31:01 +0100520source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100521source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100522
523if ARCH_S3C2410
524source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100526source "arch/arm/mach-s3c2412/Kconfig"
527source "arch/arm/mach-s3c2440/Kconfig"
528source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100529source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100530endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531
532source "arch/arm/mach-lh7a40x/Kconfig"
533
534source "arch/arm/mach-imx/Kconfig"
535
536source "arch/arm/mach-h720x/Kconfig"
537
538source "arch/arm/mach-versatile/Kconfig"
539
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100540source "arch/arm/mach-aaec2000/Kconfig"
541
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000542source "arch/arm/mach-realview/Kconfig"
543
Andrew Victor9d041262007-02-05 11:42:07 +0100544source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000545
Quinn Jensen52c543f2007-07-09 22:06:53 +0100546source "arch/arm/plat-mxc/Kconfig"
547
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100548source "arch/arm/mach-netx/Kconfig"
549
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100550source "arch/arm/mach-ns9xxx/Kconfig"
551
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100552source "arch/arm/mach-davinci/Kconfig"
553
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100554source "arch/arm/mach-ks8695/Kconfig"
555
Brian Swetland9e73c842007-11-26 04:12:13 -0800556source "arch/arm/mach-msm/Kconfig"
557
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558# Definitions to make life easier
559config ARCH_ACORN
560 bool
561
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100562config PLAT_IOP
563 bool
564
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400565config PLAT_ORION
566 bool
567
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568source arch/arm/mm/Kconfig
569
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100570config IWMMXT
571 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100572 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700573 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100574 help
575 Enable support for iWMMXt context switching at run time if
576 running on a CPU that supports it.
577
Linus Torvalds1da177e2005-04-16 15:20:36 -0700578# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
579config XSCALE_PMU
580 bool
581 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
582 default y
583
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100584if !MMU
585source "arch/arm/Kconfig-nommu"
586endif
587
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588endmenu
589
590source "arch/arm/common/Kconfig"
591
592config FORCE_MAX_ZONEORDER
593 int
594 depends on SA1111
595 default "9"
596
597menu "Bus support"
598
599config ARM_AMBA
600 bool
601
602config ISA
603 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604 help
605 Find out whether you have ISA slots on your motherboard. ISA is the
606 name of a bus system, i.e. the way the CPU talks to the other stuff
607 inside your box. Other bus systems are PCI, EISA, MicroChannel
608 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
609 newer boards don't support it. If you have ISA, say Y, otherwise N.
610
Russell King065909b2006-01-04 15:44:16 +0000611# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612config ISA_DMA
613 bool
Russell King065909b2006-01-04 15:44:16 +0000614 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615
Russell King065909b2006-01-04 15:44:16 +0000616# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100617config ISA_DMA_API
618 bool
Al Viro5cae8412005-05-04 05:39:22 +0100619
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100621 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622 help
623 Find out whether you have a PCI motherboard. PCI is the name of a
624 bus system, i.e. the way the CPU talks to the other stuff inside
625 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
626 VESA. If you have PCI, say Y, otherwise N.
627
Matthew Wilcox36e23592007-07-10 10:54:40 -0600628config PCI_SYSCALL
629 def_bool PCI
630
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631# Select the host bridge type
632config PCI_HOST_VIA82C505
633 bool
634 depends on PCI && ARCH_SHARK
635 default y
636
Mike Rapoporta0113a92007-11-25 08:55:34 +0100637config PCI_HOST_ITE8152
638 bool
639 depends on PCI && MACH_ARMCORE
640 default y
641 select DMABOUNCE
642
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643source "drivers/pci/Kconfig"
644
645source "drivers/pcmcia/Kconfig"
646
647endmenu
648
649menu "Kernel Features"
650
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100651source "kernel/time/Kconfig"
652
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653config SMP
654 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100655 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656 help
657 This enables support for systems with more than one CPU. If you have
658 a system with only one CPU, like most personal computers, say N. If
659 you have a system with more than one CPU, say Y.
660
661 If you say N here, the kernel will run on single and multiprocessor
662 machines, but will use only one CPU of a multiprocessor machine. If
663 you say Y here, the kernel will run on many, but not all, single
664 processor machines. On a single processor machine, the kernel will
665 run faster if you say N here.
666
Adrian Bunk03502fa2008-02-03 15:50:21 +0200667 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
669 <http://www.linuxdoc.org/docs.html#howto>.
670
671 If you don't know what to do here, say N.
672
673config NR_CPUS
674 int "Maximum number of CPUs (2-32)"
675 range 2 32
676 depends on SMP
677 default "4"
678
Russell Kinga054a812005-11-02 22:24:33 +0000679config HOTPLUG_CPU
680 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
681 depends on SMP && HOTPLUG && EXPERIMENTAL
682 help
683 Say Y here to experiment with turning CPUs off and on. CPUs
684 can be controlled through /sys/devices/system/cpu.
685
Russell King37ee16a2005-11-08 19:08:05 +0000686config LOCAL_TIMERS
687 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100688 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000689 default y
690 help
691 Enable support for local timers on SMP platforms, rather then the
692 legacy IPI broadcast method. Local timers allows the system
693 accounting to be spread across the timer interval, preventing a
694 "thundering herd" at every timer tick.
695
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696config PREEMPT
697 bool "Preemptible Kernel (EXPERIMENTAL)"
698 depends on EXPERIMENTAL
699 help
700 This option reduces the latency of the kernel when reacting to
701 real-time or interactive events by allowing a low priority process to
702 be preempted even if it is in kernel mode executing a system call.
703 This allows applications to run more reliably even when the system is
704 under load.
705
706 Say Y here if you are building a kernel for a desktop, embedded
707 or real-time system. Say N if you are unsure.
708
Russell King8749af62005-06-25 19:39:45 +0100709config NO_IDLE_HZ
710 bool "Dynamic tick timer"
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100711 depends on !GENERIC_CLOCKEVENTS
Russell King8749af62005-06-25 19:39:45 +0100712 help
713 Select this option if you want to disable continuous timer ticks
714 and have them programmed to occur as required. This option saves
715 power as the system can remain in idle state for longer.
716
717 By default dynamic tick is disabled during the boot, and can be
718 manually enabled with:
719
720 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
721
722 Alternatively, if you want dynamic tick automatically enabled
723 during boot, pass "dyntick=enable" via the kernel command string.
724
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100725 Please note that dynamic tick may affect the accuracy of
726 timekeeping on some platforms depending on the implementation.
Nicolas Pitre569d2c32005-09-01 12:48:48 +0100727 Currently at least OMAP, PXA2xx and SA11x0 platforms are known
728 to have accurate timekeeping with dynamic tick.
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100729
Russell Kingf8065812006-03-02 22:41:59 +0000730config HZ
731 int
732 default 128 if ARCH_L7200
733 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000734 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100735 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000736 default 100
737
Nicolas Pitre704bdda02006-01-14 16:33:50 +0000738config AEABI
739 bool "Use the ARM EABI to compile the kernel"
740 help
741 This option allows for the kernel to be compiled using the latest
742 ARM ABI (aka EABI). This is only useful if you are using a user
743 space environment that is also compiled with EABI.
744
745 Since there are major incompatibilities between the legacy ABI and
746 EABI, especially with regard to structure member alignment, this
747 option also changes the kernel syscall calling convention to
748 disambiguate both ABIs and allow for backward compatibility support
749 (selected with CONFIG_OABI_COMPAT).
750
751 To use this you need GCC version 4.0.0 or later.
752
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000753config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000754 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000755 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000756 default y
757 help
758 This option preserves the old syscall interface along with the
759 new (ARM EABI) one. It also provides a compatibility layer to
760 intercept syscalls that have structure arguments which layout
761 in memory differs between the legacy ABI and the new ARM EABI
762 (only for non "thumb" binaries). This option adds a tiny
763 overhead to all syscalls and produces a slightly larger kernel.
764 If you know you'll be using only pure EABI user space then you
765 can say N here. If this option is not selected and you attempt
766 to execute a legacy ABI binary then the result will be
767 UNPREDICTABLE (in fact it can be predicted that it won't work
768 at all). If in doubt say Y.
769
Dave Hansen3f22ab22005-06-23 00:07:43 -0700770config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100772 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773 help
774 Say Y to support efficient handling of discontiguous physical memory,
775 for architectures which are either NUMA (Non-Uniform Memory Access)
776 or have huge holes in the physical address space for other reasons.
777 See <file:Documentation/vm/numa> for more.
778
Russell King05944d72006-11-30 20:43:51 +0000779config ARCH_SPARSEMEM_ENABLE
780 bool
781
782config ARCH_SELECT_MEMORY_MODEL
783 bool
784
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700785config NODES_SHIFT
786 int
787 default "4" if ARCH_LH7A40X
788 default "2"
789 depends on NEED_MULTIPLE_NODES
790
Dave Hansen3f22ab22005-06-23 00:07:43 -0700791source "mm/Kconfig"
792
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793config LEDS
794 bool "Timer and CPU usage LEDs"
795 depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
796 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
797 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
798 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000799 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100800 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400801 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802 help
803 If you say Y here, the LEDs on your machine will be used
804 to provide useful information about your current system status.
805
806 If you are compiling a kernel for a NetWinder or EBSA-285, you will
807 be able to select which LEDs are active using the options below. If
808 you are compiling a kernel for the EBSA-110 or the LART however, the
809 red LED will simply flash regularly to indicate that the system is
810 still functional. It is safe to say Y here if you have a CATS
811 system, but the driver will do nothing.
812
813config LEDS_TIMER
814 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700815 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
816 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700817 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100818 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819 default y if ARCH_EBSA110
820 help
821 If you say Y here, one of the system LEDs (the green one on the
822 NetWinder, the amber one on the EBSA285, or the red one on the LART)
823 will flash regularly to indicate that the system is still
824 operational. This is mainly useful to kernel hackers who are
825 debugging unstable kernels.
826
827 The LART uses the same LED for both Timer LED and CPU usage LED
828 functions. You may choose to use both, but the Timer LED function
829 will overrule the CPU usage LED.
830
831config LEDS_CPU
832 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700833 !ARCH_OMAP) \
834 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
835 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700836 depends on LEDS
837 help
838 If you say Y here, the red LED will be used to give a good real
839 time indication of CPU usage, by lighting whenever the idle task
840 is not currently executing.
841
842 The LART uses the same LED for both Timer LED and CPU usage LED
843 functions. You may choose to use both, but the Timer LED function
844 will overrule the CPU usage LED.
845
846config ALIGNMENT_TRAP
847 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900848 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849 default y if !ARCH_EBSA110
850 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200851 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
853 address divisible by 4. On 32-bit ARM processors, these non-aligned
854 fetch/store instructions will be emulated in software if you say
855 here, which has a severe performance impact. This is necessary for
856 correct operation of some network protocols. With an IP-only
857 configuration it is safe to say N, otherwise say Y.
858
859endmenu
860
861menu "Boot options"
862
863# Compressed boot loader in ROM. Yes, we really want to ask about
864# TEXT and BSS so we preserve their values in the config files.
865config ZBOOT_ROM_TEXT
866 hex "Compressed ROM boot loader base address"
867 default "0"
868 help
869 The physical address at which the ROM-able zImage is to be
870 placed in the target. Platforms which normally make use of
871 ROM-able zImage formats normally set this to a suitable
872 value in their defconfig file.
873
874 If ZBOOT_ROM is not enabled, this has no effect.
875
876config ZBOOT_ROM_BSS
877 hex "Compressed ROM boot loader BSS address"
878 default "0"
879 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100880 The base address of an area of read/write memory in the target
881 for the ROM-able zImage which must be available while the
882 decompressor is running. It must be large enough to hold the
883 entire decompressed kernel plus an additional 128 KiB.
884 Platforms which normally make use of ROM-able zImage formats
885 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886
887 If ZBOOT_ROM is not enabled, this has no effect.
888
889config ZBOOT_ROM
890 bool "Compressed boot loader in ROM/flash"
891 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
892 help
893 Say Y here if you intend to execute your compressed kernel image
894 (zImage) directly from ROM or flash. If unsure, say N.
895
896config CMDLINE
897 string "Default kernel command string"
898 default ""
899 help
900 On some architectures (EBSA110 and CATS), there is currently no way
901 for the boot loader to pass arguments to the kernel. For these
902 architectures, you should supply some command-line options at build
903 time by entering them here. As a minimum, you should specify the
904 memory size and the root device (e.g., mem=64M root=/dev/nfs).
905
906config XIP_KERNEL
907 bool "Kernel Execute-In-Place from ROM"
908 depends on !ZBOOT_ROM
909 help
910 Execute-In-Place allows the kernel to run from non-volatile storage
911 directly addressable by the CPU, such as NOR flash. This saves RAM
912 space since the text section of the kernel is not loaded from flash
913 to RAM. Read-write sections, such as the data section and stack,
914 are still copied to RAM. The XIP kernel is not compressed since
915 it has to run directly from flash, so it will take more space to
916 store it. The flash address used to link the kernel object files,
917 and for storing it, is configuration dependent. Therefore, if you
918 say Y here, you must know the proper physical address where to
919 store the kernel image depending on your own flash memory usage.
920
921 Also note that the make target becomes "make xipImage" rather than
922 "make zImage" or "make Image". The final kernel binary to put in
923 ROM memory will be arch/arm/boot/xipImage.
924
925 If unsure, say N.
926
927config XIP_PHYS_ADDR
928 hex "XIP Kernel Physical Location"
929 depends on XIP_KERNEL
930 default "0x00080000"
931 help
932 This is the physical address in your flash memory the kernel will
933 be linked for and stored to. This address is dependent on your
934 own flash usage.
935
Richard Purdiec587e4a2007-02-06 21:29:00 +0100936config KEXEC
937 bool "Kexec system call (EXPERIMENTAL)"
938 depends on EXPERIMENTAL
939 help
940 kexec is a system call that implements the ability to shutdown your
941 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200942 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +0100943 you can start any kernel with it, not just Linux.
944
945 It is an ongoing process to be certain the hardware in a machine
946 is properly shutdown, so do not be surprised if this code does not
947 initially work for you. It may help to enable device hotplugging
948 support.
949
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100950config ATAGS_PROC
951 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +0100952 depends on KEXEC
953 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100954 help
955 Should the atags used to boot the kernel be exported in an "atags"
956 file in procfs. Useful with kexec.
957
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958endmenu
959
Russell King9e2697f2007-12-14 13:30:14 +0000960if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
962menu "CPU Frequency scaling"
963
964source "drivers/cpufreq/Kconfig"
965
966config CPU_FREQ_SA1100
967 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +0100968 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 -0700969 default y
970
971config CPU_FREQ_SA1110
972 bool
973 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
974 default y
975
976config CPU_FREQ_INTEGRATOR
977 tristate "CPUfreq driver for ARM Integrator CPUs"
978 depends on ARCH_INTEGRATOR && CPU_FREQ
979 default y
980 help
981 This enables the CPUfreq driver for ARM Integrator CPUs.
982
983 For details, take a look at <file:Documentation/cpu-freq>.
984
985 If in doubt, say Y.
986
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +0100987config CPU_FREQ_IMX
988 tristate "CPUfreq driver for i.MX CPUs"
989 depends on ARCH_IMX && CPU_FREQ
990 default n
991 help
992 This enables the CPUfreq driver for i.MX CPUs.
993
994 If in doubt, say N.
995
Russell King9e2697f2007-12-14 13:30:14 +0000996config CPU_FREQ_PXA
997 bool
998 depends on CPU_FREQ && ARCH_PXA && PXA25x
999 default y
1000 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1001
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002endmenu
1003
1004endif
1005
1006menu "Floating point emulation"
1007
1008comment "At least one emulation must be selected"
1009
1010config FPE_NWFPE
1011 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001012 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013 ---help---
1014 Say Y to include the NWFPE floating point emulator in the kernel.
1015 This is necessary to run most binaries. Linux does not currently
1016 support floating point hardware so you need to say Y here even if
1017 your machine has an FPA or floating point co-processor podule.
1018
1019 You may say N here if you are going to load the Acorn FPEmulator
1020 early in the bootup.
1021
1022config FPE_NWFPE_XP
1023 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001024 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025 help
1026 Say Y to include 80-bit support in the kernel floating-point
1027 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1028 Note that gcc does not generate 80-bit operations by default,
1029 so in most cases this option only enlarges the size of the
1030 floating point emulator without any good reason.
1031
1032 You almost surely want to say N here.
1033
1034config FPE_FASTFPE
1035 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001036 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037 ---help---
1038 Say Y here to include the FAST floating point emulator in the kernel.
1039 This is an experimental much faster emulator which now also has full
1040 precision for the mantissa. It does not support any exceptions.
1041 It is very simple, and approximately 3-6 times faster than NWFPE.
1042
1043 It should be sufficient for most programs. It may be not suitable
1044 for scientific calculations, but you have to check this for yourself.
1045 If you do not feel you need a faster FP emulation you should better
1046 choose NWFPE.
1047
1048config VFP
1049 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001050 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051 help
1052 Say Y to include VFP support code in the kernel. This is needed
1053 if your hardware includes a VFP unit.
1054
1055 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1056 release notes and additional status information.
1057
1058 Say N if your target does not have VFP hardware.
1059
Catalin Marinas25ebee02007-09-25 15:22:24 +01001060config VFPv3
1061 bool
1062 depends on VFP
1063 default y if CPU_V7
1064
Catalin Marinasb5872db2008-01-10 19:16:17 +01001065config NEON
1066 bool "Advanced SIMD (NEON) Extension support"
1067 depends on VFPv3 && CPU_V7
1068 help
1069 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1070 Extension.
1071
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072endmenu
1073
1074menu "Userspace binary formats"
1075
1076source "fs/Kconfig.binfmt"
1077
1078config ARTHUR
1079 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001080 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081 help
1082 Say Y here to include the kernel code necessary if you want to run
1083 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1084 experimental; if this sounds frightening, say N and sleep in peace.
1085 You can also say M here to compile this support as a module (which
1086 will be called arthur).
1087
1088endmenu
1089
1090menu "Power management options"
1091
Russell Kingeceab4a2005-11-15 11:31:41 +00001092source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093
Johannes Bergf4cb5702007-12-08 02:14:00 +01001094config ARCH_SUSPEND_POSSIBLE
1095 def_bool y
1096
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097endmenu
1098
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001099source "net/Kconfig"
1100
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101menu "Device Drivers"
1102
1103source "drivers/base/Kconfig"
1104
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001105source "drivers/connector/Kconfig"
1106
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001107if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108source "drivers/mtd/Kconfig"
1109endif
1110
1111source "drivers/parport/Kconfig"
1112
1113source "drivers/pnp/Kconfig"
1114
1115source "drivers/block/Kconfig"
1116
Russell King58273e52007-10-12 22:24:09 +01001117# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1118
1119source "drivers/misc/Kconfig"
1120
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122
1123source "drivers/scsi/Kconfig"
1124
Martin Michlmayreb370f02006-11-17 00:14:35 +01001125source "drivers/ata/Kconfig"
1126
Linus Torvalds1da177e2005-04-16 15:20:36 -07001127source "drivers/md/Kconfig"
1128
1129source "drivers/message/fusion/Kconfig"
1130
1131source "drivers/ieee1394/Kconfig"
1132
1133source "drivers/message/i2o/Kconfig"
1134
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001135source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136
1137source "drivers/isdn/Kconfig"
1138
1139# input before char - char/joystick depends on it. As does USB.
1140
1141source "drivers/input/Kconfig"
1142
1143source "drivers/char/Kconfig"
1144
1145source "drivers/i2c/Kconfig"
1146
David Brownell8ae12a02006-01-08 13:34:19 -08001147source "drivers/spi/Kconfig"
1148
David Brownella9c5fff2008-02-04 22:28:17 -08001149source "drivers/gpio/Kconfig"
1150
Alessandro Zummo04916c02006-03-10 22:30:01 +00001151source "drivers/w1/Kconfig"
1152
Russell King58273e52007-10-12 22:24:09 +01001153source "drivers/power/Kconfig"
1154
Jean Delvaread2f9312005-07-02 18:15:49 +02001155source "drivers/hwmon/Kconfig"
1156
Russell King70dfa3f2007-11-07 14:13:35 +00001157source "drivers/watchdog/Kconfig"
1158
Russell King58273e52007-10-12 22:24:09 +01001159source "drivers/ssb/Kconfig"
1160
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161#source "drivers/l3/Kconfig"
1162
Russell Kinga4e137a2005-08-18 10:06:59 +01001163source "drivers/mfd/Kconfig"
1164
Linus Torvalds1da177e2005-04-16 15:20:36 -07001165source "drivers/media/Kconfig"
1166
1167source "drivers/video/Kconfig"
1168
1169source "sound/Kconfig"
1170
Sascha Hauerc2dade52006-12-12 10:32:42 +01001171source "drivers/hid/Kconfig"
1172
Linus Torvalds1da177e2005-04-16 15:20:36 -07001173source "drivers/usb/Kconfig"
1174
1175source "drivers/mmc/Kconfig"
1176
Russell King58273e52007-10-12 22:24:09 +01001177source "drivers/leds/Kconfig"
1178
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001179source "drivers/rtc/Kconfig"
1180
Dan Williams58168152007-01-02 11:10:43 -07001181source "drivers/dma/Kconfig"
1182
Dan Williamsabf07b12008-01-18 23:26:10 +01001183source "drivers/dca/Kconfig"
1184
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001185source "drivers/uio/Kconfig"
1186
Linus Torvalds1da177e2005-04-16 15:20:36 -07001187endmenu
1188
1189source "fs/Kconfig"
1190
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191source "arch/arm/Kconfig.debug"
1192
1193source "security/Kconfig"
1194
1195source "crypto/Kconfig"
1196
1197source "lib/Kconfig"