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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
Jason Wessel5cbad0e2008-02-20 13:33:40 -060015 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050016 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080017 select HAVE_KRETPROBES if (HAVE_KPROBES)
Abhishek Sagar014c2572008-05-31 14:23:50 +053018 select HAVE_FTRACE if (!XIP_KERNEL)
19 select HAVE_DYNAMIC_FTRACE if (HAVE_FTRACE)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040020 select HAVE_GENERIC_DMA_COHERENT
Linus Torvalds1da177e2005-04-16 15:20:36 -070021 help
22 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000023 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000025 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 Europe. There is an ARM Linux project with a web page at
27 <http://www.arm.linux.org.uk/>.
28
Russell King1a189b92008-04-13 21:41:55 +010029config HAVE_PWM
30 bool
31
Ralf Baechle75e71532007-02-09 17:08:58 +000032config SYS_SUPPORTS_APM_EMULATION
33 bool
34
David Brownell0a938b92007-03-05 00:30:18 -080035config GENERIC_GPIO
36 bool
37 default n
38
Kevin Hilman746140c2006-09-22 00:16:30 +010039config GENERIC_TIME
40 bool
41 default n
42
Kevin Hilman0567a0c2007-03-13 20:29:24 +010043config GENERIC_CLOCKEVENTS
44 bool
45 default n
46
Catalin Marinasa8655e82008-02-04 17:30:57 +010047config GENERIC_CLOCKEVENTS_BROADCAST
48 bool
49 depends on GENERIC_CLOCKEVENTS
50 default y if SMP && !LOCAL_TIMERS
51
Linus Torvalds1da177e2005-04-16 15:20:36 -070052config MMU
53 bool
54 default y
55
Al Viro5ea81762007-02-11 15:41:31 +000056config NO_IOPORT
57 bool
58 default n
59
Linus Torvalds1da177e2005-04-16 15:20:36 -070060config EISA
61 bool
62 ---help---
63 The Extended Industry Standard Architecture (EISA) bus was
64 developed as an open alternative to the IBM MicroChannel bus.
65
66 The EISA bus provided some of the features of the IBM MicroChannel
67 bus while maintaining backward compatibility with cards made for
68 the older ISA bus. The EISA bus saw limited use between 1988 and
69 1995 when it was made obsolete by the PCI bus.
70
71 Say Y here if you are building a kernel for an EISA-based machine.
72
73 Otherwise, say N.
74
75config SBUS
76 bool
77
78config MCA
79 bool
80 help
81 MicroChannel Architecture is found in some IBM PS/2 machines and
82 laptops. It is a bus system similar to PCI or ISA. See
83 <file:Documentation/mca.txt> (and especially the web page given
84 there) before attempting to build an MCA bus kernel.
85
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010086config GENERIC_HARDIRQS
87 bool
88 default y
89
Russell Kingf16fb1e2007-04-28 09:59:37 +010090config STACKTRACE_SUPPORT
91 bool
92 default y
93
Nicolas Pitref76e9152008-04-24 01:31:46 -040094config HAVE_LATENCYTOP_SUPPORT
95 bool
96 depends on !SMP
97 default y
98
Russell Kingf16fb1e2007-04-28 09:59:37 +010099config LOCKDEP_SUPPORT
100 bool
101 default y
102
Russell King7ad1bcb2006-08-27 12:07:02 +0100103config TRACE_IRQFLAGS_SUPPORT
104 bool
105 default y
106
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100107config HARDIRQS_SW_RESEND
108 bool
109 default y
110
111config GENERIC_IRQ_PROBE
112 bool
113 default y
114
Nick Piggin95c354f2008-01-30 13:31:20 +0100115config GENERIC_LOCKBREAK
116 bool
117 default y
118 depends on SMP && PREEMPT
119
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120config RWSEM_GENERIC_SPINLOCK
121 bool
122 default y
123
124config RWSEM_XCHGADD_ALGORITHM
125 bool
126
David Howellsf0d1b0b2006-12-08 02:37:49 -0800127config ARCH_HAS_ILOG2_U32
128 bool
129 default n
130
131config ARCH_HAS_ILOG2_U64
132 bool
133 default n
134
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800135config GENERIC_HWEIGHT
136 bool
137 default y
138
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139config GENERIC_CALIBRATE_DELAY
140 bool
141 default y
142
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100143config ARCH_MAY_HAVE_PC_FDC
144 bool
145
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800146config ZONE_DMA
147 bool
148 default y
149
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150config GENERIC_ISA_DMA
151 bool
152
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153config FIQ
154 bool
155
Al Viro034d2f52005-12-19 16:27:59 -0500156config ARCH_MTD_XIP
157 bool
158
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100159config GENERIC_HARDIRQS_NO__DO_IRQ
160 bool
161 def_bool y
162
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500163if OPROFILE
164
165config OPROFILE_ARMV6
166 def_bool y
167 depends on CPU_V6 && !SMP
168 select OPROFILE_ARM11_CORE
169
170config OPROFILE_MPCORE
171 def_bool y
172 depends on CPU_V6 && SMP
173 select OPROFILE_ARM11_CORE
174
175config OPROFILE_ARM11_CORE
176 bool
177
178endif
179
Hyok S. Choic760fc12006-03-27 15:18:50 +0100180config VECTORS_BASE
181 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900182 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100183 default DRAM_BASE if REMAP_VECTORS_TO_RAM
184 default 0x00000000
185 help
186 The base address of exception vectors.
187
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188source "init/Kconfig"
189
190menu "System Type"
191
192choice
193 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000194 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100196config ARCH_AAEC2000
197 bool "Agilent AAEC-2000 based"
198 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700199 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100200 help
201 This enables support for systems based on the Agilent AAEC-2000
202
203config ARCH_INTEGRATOR
204 bool "ARM Ltd. Integrator family"
205 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700206 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100207 select ICST525
208 help
209 Support for ARM's Integrator platform.
210
211config ARCH_REALVIEW
212 bool "ARM Ltd. RealView family"
213 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700214 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100215 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100216 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100217 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100218 help
219 This enables support for ARM Ltd RealView boards.
220
221config ARCH_VERSATILE
222 bool "ARM Ltd. Versatile family"
223 select ARM_AMBA
224 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700225 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100226 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100227 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100228 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100229 help
230 This enables support for ARM Ltd Versatile board.
231
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100232config ARCH_AT91
233 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800234 select GENERIC_GPIO
David Brownell93686ae2008-07-28 15:46:22 -0700235 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100236 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100237 This enables support for systems based on the Atmel AT91RM9200,
238 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100239
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100241 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100243 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000244 select NO_IOPORT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000245 help
246 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247
248config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100249 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000250 help
251 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253config ARCH_EBSA110
254 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100255 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000256 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257 help
258 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000259 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260 Ethernet interface, two PCMCIA sockets, two serial ports and a
261 parallel port.
262
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000263config ARCH_EP93XX
264 bool "EP93xx-based"
265 select ARM_AMBA
266 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100267 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700268 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700269 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000270 help
271 This enables support for the Cirrus EP93xx series of CPUs.
272
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273config ARCH_FOOTBRIDGE
274 bool "FootBridge"
275 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000276 help
277 Support for systems based on the DC21285 companion chip
278 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100280config ARCH_NETX
281 bool "Hilscher NetX based"
282 select ARM_VIC
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000283 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100284 This enables support for systems based on the Hilscher NetX Soc
285
286config ARCH_H720X
287 bool "Hynix HMS720x-based"
288 select ISA_DMA_API
289 help
290 This enables support for systems based on the Hynix HMS720x
291
292config ARCH_IMX
293 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100294 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100295 select GENERIC_TIME
296 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100297 help
298 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299
Russell King3b938be2007-05-12 11:25:44 +0100300config ARCH_IOP13XX
301 bool "IOP13xx-based"
302 depends on MMU
303 select PLAT_IOP
304 select PCI
305 select ARCH_SUPPORTS_MSI
306 help
307 Support for Intel's IOP13XX (XScale) family of processors.
308
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100309config ARCH_IOP32X
310 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100311 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100312 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100313 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100314 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100315 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000316 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100317 Support for Intel's 80219 and IOP32X (XScale) family of
318 processors.
319
320config ARCH_IOP33X
321 bool "IOP33x-based"
322 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100323 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100324 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100325 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100326 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100327 help
328 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329
Russell King3b938be2007-05-12 11:25:44 +0100330config ARCH_IXP23XX
331 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100332 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100333 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100334 help
Russell King3b938be2007-05-12 11:25:44 +0100335 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336
337config ARCH_IXP2000
338 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100339 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100340 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000341 help
342 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343
Russell King3b938be2007-05-12 11:25:44 +0100344config ARCH_IXP4XX
345 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100346 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100347 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100348 select GENERIC_TIME
349 select GENERIC_CLOCKEVENTS
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100350 help
Russell King3b938be2007-05-12 11:25:44 +0100351 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100352
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353config ARCH_L7200
354 bool "LinkUp-L7200"
355 select FIQ
356 help
357 Say Y here if you intend to run this kernel on a LinkUp Systems
358 L7200 Software Development Board which uses an ARM720T processor.
359 Information on this board can be obtained at:
360
361 <http://www.linkupsys.com/>
362
363 If you have any questions or comments about the Linux kernel port
364 to this board, send e-mail to <sjhill@cotw.com>.
365
Saeed Bishara651c74c2008-06-22 22:45:06 +0200366config ARCH_KIRKWOOD
367 bool "Marvell Kirkwood"
368 select PCI
369 select GENERIC_TIME
370 select GENERIC_CLOCKEVENTS
371 select PLAT_ORION
372 help
373 Support for the following Marvell Kirkwood series SoCs:
374 88F6180, 88F6192 and 88F6281.
375
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100376config ARCH_KS8695
377 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100378 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100379 help
380 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
381 System-on-Chip devices.
382
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100383config ARCH_NS9XXX
384 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100385 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100386 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100387 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700388 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100389 help
390 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
391 System.
392
393 <http://www.digi.com/products/microprocessors/index.jsp>
394
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200395config ARCH_LOKI
396 bool "Marvell Loki (88RC8480)"
397 select GENERIC_TIME
398 select GENERIC_CLOCKEVENTS
399 select PLAT_ORION
400 help
401 Support for the Marvell Loki (88RC8480) SoC.
402
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200403config ARCH_MV78XX0
404 bool "Marvell MV78xx0"
405 select PCI
406 select GENERIC_TIME
407 select GENERIC_CLOCKEVENTS
408 select PLAT_ORION
409 help
410 Support for the following Marvell MV78xx0 series SoCs:
411 MV781x0, MV782x0.
412
Quinn Jensen52c543f2007-07-09 22:06:53 +0100413config ARCH_MXC
414 bool "Freescale MXC/iMX-based"
Juergen Beisertd0f349f2008-07-05 10:02:50 +0200415 select GENERIC_TIME
416 select GENERIC_CLOCKEVENTS
Quinn Jensen52c543f2007-07-09 22:06:53 +0100417 select ARCH_MTD_XIP
Juergen Beisert07bd1a62008-07-05 10:02:49 +0200418 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100419 select ARCH_REQUIRE_GPIOLIB
Quinn Jensen52c543f2007-07-09 22:06:53 +0100420 help
421 Support for Freescale MXC/iMX-based family of processors
422
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400423config ARCH_ORION5X
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400424 bool "Marvell Orion"
425 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400426 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400427 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400428 select GENERIC_TIME
429 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400430 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400431 help
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400432 Support for the following Marvell Orion 5x series SoCs:
Lennert Buytenhekd2b2a6b2008-05-31 08:30:40 +0200433 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
434 Orion-2 (5281).
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400435
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100436config ARCH_PNX4008
437 bool "Philips Nexperia PNX4008 Mobile"
David Brownell9483a572008-07-23 21:26:48 -0700438 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100439 help
440 This enables support for Philips PNX4008 mobile platform.
441
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700443 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100444 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500445 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800446 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700447 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700448 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100449 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100450 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000451 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000452 help
eric miao2c8086a2007-09-11 19:13:17 -0700453 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454
455config ARCH_RPC
456 bool "RiscPC"
457 select ARCH_ACORN
458 select FIQ
459 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100460 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100461 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000462 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000463 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464 help
465 On the Acorn Risc-PC, Linux can support the internal IDE disk and
466 CD-ROM interface, serial and parallel port, and the floppy drive.
467
468config ARCH_SA1100
469 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100470 select ISA
Russell King3cd9e192005-06-25 19:29:34 +0100471 select ARCH_DISCONTIGMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +0000472 select ARCH_SPARSEMEM_ENABLE
473 select ARCH_SELECT_MEMORY_MODEL
Al Viro034d2f52005-12-19 16:27:59 -0500474 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800475 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000476 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100477 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700478 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100479 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700480 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000481 help
482 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483
484config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100485 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800486 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700487 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488 help
489 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
490 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000491 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492
493config ARCH_SHARK
494 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100495 select ISA
496 select ISA_DMA
497 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000498 help
499 Support for the StrongARM based Digital DNARD machine, also known
500 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501
502config ARCH_LH7A40X
503 bool "Sharp LH7A40X"
504 help
505 Say Y here for systems based on one of the Sharp LH7A40X
506 System on a Chip processors. These CPUs include an ARM922T
507 core with a wide array of integrated devices for
508 hand-held and low-power applications.
509
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100510config ARCH_DAVINCI
511 bool "TI DaVinci"
512 select GENERIC_TIME
513 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100514 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700515 select HAVE_CLK
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100516 help
517 Support for TI's DaVinci platform.
518
Russell King3b938be2007-05-12 11:25:44 +0100519config ARCH_OMAP
520 bool "TI OMAP"
521 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700522 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700523 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100524 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700525 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100526 help
527 Support for TI's OMAP platform (OMAP1 and OMAP2).
528
Brian Swetland30421022007-11-26 04:11:43 -0800529config ARCH_MSM7X00A
530 bool "Qualcomm MSM7X00A"
531 select GENERIC_TIME
532 select GENERIC_CLOCKEVENTS
533 help
534 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
535 apps processor of the MSM7X00A and depends on a shared memory
536 interface to the ARM9 modem processor which runs the baseband stack
537 and controls some vital subsystems (clock and power control, etc).
538 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
539
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540endchoice
541
542source "arch/arm/mach-clps711x/Kconfig"
543
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000544source "arch/arm/mach-ep93xx/Kconfig"
545
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546source "arch/arm/mach-footbridge/Kconfig"
547
548source "arch/arm/mach-integrator/Kconfig"
549
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100550source "arch/arm/mach-iop32x/Kconfig"
551
552source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553
Dan Williams285f5fa2006-12-07 02:59:39 +0100554source "arch/arm/mach-iop13xx/Kconfig"
555
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556source "arch/arm/mach-ixp4xx/Kconfig"
557
558source "arch/arm/mach-ixp2000/Kconfig"
559
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100560source "arch/arm/mach-ixp23xx/Kconfig"
561
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200562source "arch/arm/mach-loki/Kconfig"
563
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200564source "arch/arm/mach-mv78xx0/Kconfig"
565
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566source "arch/arm/mach-pxa/Kconfig"
567
568source "arch/arm/mach-sa1100/Kconfig"
569
Tony Lindgrend48af152005-07-10 19:58:17 +0100570source "arch/arm/plat-omap/Kconfig"
571
572source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700573
Tony Lindgren1dbae812005-11-10 14:26:51 +0000574source "arch/arm/mach-omap2/Kconfig"
575
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400576source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400577
Saeed Bishara651c74c2008-06-22 22:45:06 +0200578source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579
Ben Dooksa21765a2007-02-11 18:31:01 +0100580source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100581source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100582
583if ARCH_S3C2410
584source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100586source "arch/arm/mach-s3c2412/Kconfig"
587source "arch/arm/mach-s3c2440/Kconfig"
588source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100589source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100590endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591
592source "arch/arm/mach-lh7a40x/Kconfig"
593
594source "arch/arm/mach-imx/Kconfig"
595
596source "arch/arm/mach-h720x/Kconfig"
597
598source "arch/arm/mach-versatile/Kconfig"
599
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100600source "arch/arm/mach-aaec2000/Kconfig"
601
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000602source "arch/arm/mach-realview/Kconfig"
603
Andrew Victor9d041262007-02-05 11:42:07 +0100604source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000605
Quinn Jensen52c543f2007-07-09 22:06:53 +0100606source "arch/arm/plat-mxc/Kconfig"
607
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100608source "arch/arm/mach-netx/Kconfig"
609
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100610source "arch/arm/mach-ns9xxx/Kconfig"
611
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100612source "arch/arm/mach-davinci/Kconfig"
613
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100614source "arch/arm/mach-ks8695/Kconfig"
615
Brian Swetland9e73c842007-11-26 04:12:13 -0800616source "arch/arm/mach-msm/Kconfig"
617
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618# Definitions to make life easier
619config ARCH_ACORN
620 bool
621
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100622config PLAT_IOP
623 bool
624
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400625config PLAT_ORION
626 bool
627
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628source arch/arm/mm/Kconfig
629
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100630config IWMMXT
631 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100632 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700633 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100634 help
635 Enable support for iWMMXt context switching at run time if
636 running on a CPU that supports it.
637
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
639config XSCALE_PMU
640 bool
641 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
642 default y
643
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100644if !MMU
645source "arch/arm/Kconfig-nommu"
646endif
647
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648endmenu
649
650source "arch/arm/common/Kconfig"
651
652config FORCE_MAX_ZONEORDER
653 int
654 depends on SA1111
655 default "9"
656
657menu "Bus support"
658
659config ARM_AMBA
660 bool
661
662config ISA
663 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664 help
665 Find out whether you have ISA slots on your motherboard. ISA is the
666 name of a bus system, i.e. the way the CPU talks to the other stuff
667 inside your box. Other bus systems are PCI, EISA, MicroChannel
668 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
669 newer boards don't support it. If you have ISA, say Y, otherwise N.
670
Russell King065909b2006-01-04 15:44:16 +0000671# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672config ISA_DMA
673 bool
Russell King065909b2006-01-04 15:44:16 +0000674 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675
Russell King065909b2006-01-04 15:44:16 +0000676# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100677config ISA_DMA_API
678 bool
Al Viro5cae8412005-05-04 05:39:22 +0100679
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100681 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682 help
683 Find out whether you have a PCI motherboard. PCI is the name of a
684 bus system, i.e. the way the CPU talks to the other stuff inside
685 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
686 VESA. If you have PCI, say Y, otherwise N.
687
Matthew Wilcox36e23592007-07-10 10:54:40 -0600688config PCI_SYSCALL
689 def_bool PCI
690
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691# Select the host bridge type
692config PCI_HOST_VIA82C505
693 bool
694 depends on PCI && ARCH_SHARK
695 default y
696
Mike Rapoporta0113a92007-11-25 08:55:34 +0100697config PCI_HOST_ITE8152
698 bool
699 depends on PCI && MACH_ARMCORE
700 default y
701 select DMABOUNCE
702
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703source "drivers/pci/Kconfig"
704
705source "drivers/pcmcia/Kconfig"
706
707endmenu
708
709menu "Kernel Features"
710
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100711source "kernel/time/Kconfig"
712
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713config SMP
714 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100715 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Jens Axboef6dd9fa52008-06-10 20:48:30 +0200716 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717 help
718 This enables support for systems with more than one CPU. If you have
719 a system with only one CPU, like most personal computers, say N. If
720 you have a system with more than one CPU, say Y.
721
722 If you say N here, the kernel will run on single and multiprocessor
723 machines, but will use only one CPU of a multiprocessor machine. If
724 you say Y here, the kernel will run on many, but not all, single
725 processor machines. On a single processor machine, the kernel will
726 run faster if you say N here.
727
Adrian Bunk03502fa2008-02-03 15:50:21 +0200728 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
730 <http://www.linuxdoc.org/docs.html#howto>.
731
732 If you don't know what to do here, say N.
733
734config NR_CPUS
735 int "Maximum number of CPUs (2-32)"
736 range 2 32
737 depends on SMP
738 default "4"
739
Russell Kinga054a812005-11-02 22:24:33 +0000740config HOTPLUG_CPU
741 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
742 depends on SMP && HOTPLUG && EXPERIMENTAL
743 help
744 Say Y here to experiment with turning CPUs off and on. CPUs
745 can be controlled through /sys/devices/system/cpu.
746
Russell King37ee16a2005-11-08 19:08:05 +0000747config LOCAL_TIMERS
748 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100749 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000750 default y
751 help
752 Enable support for local timers on SMP platforms, rather then the
753 legacy IPI broadcast method. Local timers allows the system
754 accounting to be spread across the timer interval, preventing a
755 "thundering herd" at every timer tick.
756
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757config PREEMPT
758 bool "Preemptible Kernel (EXPERIMENTAL)"
759 depends on EXPERIMENTAL
760 help
761 This option reduces the latency of the kernel when reacting to
762 real-time or interactive events by allowing a low priority process to
763 be preempted even if it is in kernel mode executing a system call.
764 This allows applications to run more reliably even when the system is
765 under load.
766
767 Say Y here if you are building a kernel for a desktop, embedded
768 or real-time system. Say N if you are unsure.
769
Russell Kingf8065812006-03-02 22:41:59 +0000770config HZ
771 int
772 default 128 if ARCH_L7200
773 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000774 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100775 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000776 default 100
777
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000778config AEABI
779 bool "Use the ARM EABI to compile the kernel"
780 help
781 This option allows for the kernel to be compiled using the latest
782 ARM ABI (aka EABI). This is only useful if you are using a user
783 space environment that is also compiled with EABI.
784
785 Since there are major incompatibilities between the legacy ABI and
786 EABI, especially with regard to structure member alignment, this
787 option also changes the kernel syscall calling convention to
788 disambiguate both ABIs and allow for backward compatibility support
789 (selected with CONFIG_OABI_COMPAT).
790
791 To use this you need GCC version 4.0.0 or later.
792
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000793config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000794 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000795 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000796 default y
797 help
798 This option preserves the old syscall interface along with the
799 new (ARM EABI) one. It also provides a compatibility layer to
800 intercept syscalls that have structure arguments which layout
801 in memory differs between the legacy ABI and the new ARM EABI
802 (only for non "thumb" binaries). This option adds a tiny
803 overhead to all syscalls and produces a slightly larger kernel.
804 If you know you'll be using only pure EABI user space then you
805 can say N here. If this option is not selected and you attempt
806 to execute a legacy ABI binary then the result will be
807 UNPREDICTABLE (in fact it can be predicted that it won't work
808 at all). If in doubt say Y.
809
Mel Gormane80d6a22008-08-14 11:10:14 +0100810config ARCH_FLATMEM_HAS_HOLES
811 bool
812 default y
813 depends on FLATMEM
814
Dave Hansen3f22ab22005-06-23 00:07:43 -0700815config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700816 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100817 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818 help
819 Say Y to support efficient handling of discontiguous physical memory,
820 for architectures which are either NUMA (Non-Uniform Memory Access)
821 or have huge holes in the physical address space for other reasons.
822 See <file:Documentation/vm/numa> for more.
823
Russell King05944d72006-11-30 20:43:51 +0000824config ARCH_SPARSEMEM_ENABLE
825 bool
826
827config ARCH_SELECT_MEMORY_MODEL
828 bool
829
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700830config NODES_SHIFT
831 int
832 default "4" if ARCH_LH7A40X
833 default "2"
834 depends on NEED_MULTIPLE_NODES
835
Dave Hansen3f22ab22005-06-23 00:07:43 -0700836source "mm/Kconfig"
837
Linus Torvalds1da177e2005-04-16 15:20:36 -0700838config LEDS
839 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +0100840 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
842 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
843 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000844 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100845 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400846 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700847 help
848 If you say Y here, the LEDs on your machine will be used
849 to provide useful information about your current system status.
850
851 If you are compiling a kernel for a NetWinder or EBSA-285, you will
852 be able to select which LEDs are active using the options below. If
853 you are compiling a kernel for the EBSA-110 or the LART however, the
854 red LED will simply flash regularly to indicate that the system is
855 still functional. It is safe to say Y here if you have a CATS
856 system, but the driver will do nothing.
857
858config LEDS_TIMER
859 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700860 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
861 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100863 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864 default y if ARCH_EBSA110
865 help
866 If you say Y here, one of the system LEDs (the green one on the
867 NetWinder, the amber one on the EBSA285, or the red one on the LART)
868 will flash regularly to indicate that the system is still
869 operational. This is mainly useful to kernel hackers who are
870 debugging unstable kernels.
871
872 The LART uses the same LED for both Timer LED and CPU usage LED
873 functions. You may choose to use both, but the Timer LED function
874 will overrule the CPU usage LED.
875
876config LEDS_CPU
877 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700878 !ARCH_OMAP) \
879 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
880 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881 depends on LEDS
882 help
883 If you say Y here, the red LED will be used to give a good real
884 time indication of CPU usage, by lighting whenever the idle task
885 is not currently executing.
886
887 The LART uses the same LED for both Timer LED and CPU usage LED
888 functions. You may choose to use both, but the Timer LED function
889 will overrule the CPU usage LED.
890
891config ALIGNMENT_TRAP
892 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900893 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894 default y if !ARCH_EBSA110
895 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200896 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
898 address divisible by 4. On 32-bit ARM processors, these non-aligned
899 fetch/store instructions will be emulated in software if you say
900 here, which has a severe performance impact. This is necessary for
901 correct operation of some network protocols. With an IP-only
902 configuration it is safe to say N, otherwise say Y.
903
904endmenu
905
906menu "Boot options"
907
908# Compressed boot loader in ROM. Yes, we really want to ask about
909# TEXT and BSS so we preserve their values in the config files.
910config ZBOOT_ROM_TEXT
911 hex "Compressed ROM boot loader base address"
912 default "0"
913 help
914 The physical address at which the ROM-able zImage is to be
915 placed in the target. Platforms which normally make use of
916 ROM-able zImage formats normally set this to a suitable
917 value in their defconfig file.
918
919 If ZBOOT_ROM is not enabled, this has no effect.
920
921config ZBOOT_ROM_BSS
922 hex "Compressed ROM boot loader BSS address"
923 default "0"
924 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100925 The base address of an area of read/write memory in the target
926 for the ROM-able zImage which must be available while the
927 decompressor is running. It must be large enough to hold the
928 entire decompressed kernel plus an additional 128 KiB.
929 Platforms which normally make use of ROM-able zImage formats
930 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931
932 If ZBOOT_ROM is not enabled, this has no effect.
933
934config ZBOOT_ROM
935 bool "Compressed boot loader in ROM/flash"
936 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
937 help
938 Say Y here if you intend to execute your compressed kernel image
939 (zImage) directly from ROM or flash. If unsure, say N.
940
941config CMDLINE
942 string "Default kernel command string"
943 default ""
944 help
945 On some architectures (EBSA110 and CATS), there is currently no way
946 for the boot loader to pass arguments to the kernel. For these
947 architectures, you should supply some command-line options at build
948 time by entering them here. As a minimum, you should specify the
949 memory size and the root device (e.g., mem=64M root=/dev/nfs).
950
951config XIP_KERNEL
952 bool "Kernel Execute-In-Place from ROM"
953 depends on !ZBOOT_ROM
954 help
955 Execute-In-Place allows the kernel to run from non-volatile storage
956 directly addressable by the CPU, such as NOR flash. This saves RAM
957 space since the text section of the kernel is not loaded from flash
958 to RAM. Read-write sections, such as the data section and stack,
959 are still copied to RAM. The XIP kernel is not compressed since
960 it has to run directly from flash, so it will take more space to
961 store it. The flash address used to link the kernel object files,
962 and for storing it, is configuration dependent. Therefore, if you
963 say Y here, you must know the proper physical address where to
964 store the kernel image depending on your own flash memory usage.
965
966 Also note that the make target becomes "make xipImage" rather than
967 "make zImage" or "make Image". The final kernel binary to put in
968 ROM memory will be arch/arm/boot/xipImage.
969
970 If unsure, say N.
971
972config XIP_PHYS_ADDR
973 hex "XIP Kernel Physical Location"
974 depends on XIP_KERNEL
975 default "0x00080000"
976 help
977 This is the physical address in your flash memory the kernel will
978 be linked for and stored to. This address is dependent on your
979 own flash usage.
980
Richard Purdiec587e4a2007-02-06 21:29:00 +0100981config KEXEC
982 bool "Kexec system call (EXPERIMENTAL)"
983 depends on EXPERIMENTAL
984 help
985 kexec is a system call that implements the ability to shutdown your
986 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200987 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +0100988 you can start any kernel with it, not just Linux.
989
990 It is an ongoing process to be certain the hardware in a machine
991 is properly shutdown, so do not be surprised if this code does not
992 initially work for you. It may help to enable device hotplugging
993 support.
994
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100995config ATAGS_PROC
996 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +0100997 depends on KEXEC
998 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100999 help
1000 Should the atags used to boot the kernel be exported in an "atags"
1001 file in procfs. Useful with kexec.
1002
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003endmenu
1004
Russell King9e2697f2007-12-14 13:30:14 +00001005if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006
1007menu "CPU Frequency scaling"
1008
1009source "drivers/cpufreq/Kconfig"
1010
1011config CPU_FREQ_SA1100
1012 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +01001013 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 -07001014 default y
1015
1016config CPU_FREQ_SA1110
1017 bool
1018 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1019 default y
1020
1021config CPU_FREQ_INTEGRATOR
1022 tristate "CPUfreq driver for ARM Integrator CPUs"
1023 depends on ARCH_INTEGRATOR && CPU_FREQ
1024 default y
1025 help
1026 This enables the CPUfreq driver for ARM Integrator CPUs.
1027
1028 For details, take a look at <file:Documentation/cpu-freq>.
1029
1030 If in doubt, say Y.
1031
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +01001032config CPU_FREQ_IMX
1033 tristate "CPUfreq driver for i.MX CPUs"
1034 depends on ARCH_IMX && CPU_FREQ
1035 default n
1036 help
1037 This enables the CPUfreq driver for i.MX CPUs.
1038
1039 If in doubt, say N.
1040
Russell King9e2697f2007-12-14 13:30:14 +00001041config CPU_FREQ_PXA
1042 bool
1043 depends on CPU_FREQ && ARCH_PXA && PXA25x
1044 default y
1045 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1046
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047endmenu
1048
1049endif
1050
1051menu "Floating point emulation"
1052
1053comment "At least one emulation must be selected"
1054
1055config FPE_NWFPE
1056 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001057 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058 ---help---
1059 Say Y to include the NWFPE floating point emulator in the kernel.
1060 This is necessary to run most binaries. Linux does not currently
1061 support floating point hardware so you need to say Y here even if
1062 your machine has an FPA or floating point co-processor podule.
1063
1064 You may say N here if you are going to load the Acorn FPEmulator
1065 early in the bootup.
1066
1067config FPE_NWFPE_XP
1068 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001069 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070 help
1071 Say Y to include 80-bit support in the kernel floating-point
1072 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1073 Note that gcc does not generate 80-bit operations by default,
1074 so in most cases this option only enlarges the size of the
1075 floating point emulator without any good reason.
1076
1077 You almost surely want to say N here.
1078
1079config FPE_FASTFPE
1080 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001081 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001082 ---help---
1083 Say Y here to include the FAST floating point emulator in the kernel.
1084 This is an experimental much faster emulator which now also has full
1085 precision for the mantissa. It does not support any exceptions.
1086 It is very simple, and approximately 3-6 times faster than NWFPE.
1087
1088 It should be sufficient for most programs. It may be not suitable
1089 for scientific calculations, but you have to check this for yourself.
1090 If you do not feel you need a faster FP emulation you should better
1091 choose NWFPE.
1092
1093config VFP
1094 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001095 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001096 help
1097 Say Y to include VFP support code in the kernel. This is needed
1098 if your hardware includes a VFP unit.
1099
1100 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1101 release notes and additional status information.
1102
1103 Say N if your target does not have VFP hardware.
1104
Catalin Marinas25ebee02007-09-25 15:22:24 +01001105config VFPv3
1106 bool
1107 depends on VFP
1108 default y if CPU_V7
1109
Catalin Marinasb5872db2008-01-10 19:16:17 +01001110config NEON
1111 bool "Advanced SIMD (NEON) Extension support"
1112 depends on VFPv3 && CPU_V7
1113 help
1114 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1115 Extension.
1116
Linus Torvalds1da177e2005-04-16 15:20:36 -07001117endmenu
1118
1119menu "Userspace binary formats"
1120
1121source "fs/Kconfig.binfmt"
1122
1123config ARTHUR
1124 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001125 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126 help
1127 Say Y here to include the kernel code necessary if you want to run
1128 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1129 experimental; if this sounds frightening, say N and sleep in peace.
1130 You can also say M here to compile this support as a module (which
1131 will be called arthur).
1132
1133endmenu
1134
1135menu "Power management options"
1136
Russell Kingeceab4a2005-11-15 11:31:41 +00001137source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001138
Johannes Bergf4cb5702007-12-08 02:14:00 +01001139config ARCH_SUSPEND_POSSIBLE
1140 def_bool y
1141
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142endmenu
1143
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001144source "net/Kconfig"
1145
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146menu "Device Drivers"
1147
1148source "drivers/base/Kconfig"
1149
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001150source "drivers/connector/Kconfig"
1151
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001152if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001153source "drivers/mtd/Kconfig"
1154endif
1155
1156source "drivers/parport/Kconfig"
1157
1158source "drivers/pnp/Kconfig"
1159
1160source "drivers/block/Kconfig"
1161
Russell King58273e52007-10-12 22:24:09 +01001162# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1163
1164source "drivers/misc/Kconfig"
1165
Linus Torvalds1da177e2005-04-16 15:20:36 -07001166source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167
1168source "drivers/scsi/Kconfig"
1169
Martin Michlmayreb370f02006-11-17 00:14:35 +01001170source "drivers/ata/Kconfig"
1171
Linus Torvalds1da177e2005-04-16 15:20:36 -07001172source "drivers/md/Kconfig"
1173
1174source "drivers/message/fusion/Kconfig"
1175
1176source "drivers/ieee1394/Kconfig"
1177
1178source "drivers/message/i2o/Kconfig"
1179
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001180source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001181
1182source "drivers/isdn/Kconfig"
1183
1184# input before char - char/joystick depends on it. As does USB.
1185
1186source "drivers/input/Kconfig"
1187
1188source "drivers/char/Kconfig"
1189
1190source "drivers/i2c/Kconfig"
1191
David Brownell8ae12a02006-01-08 13:34:19 -08001192source "drivers/spi/Kconfig"
1193
David Brownella9c5fff2008-02-04 22:28:17 -08001194source "drivers/gpio/Kconfig"
1195
Alessandro Zummo04916c02006-03-10 22:30:01 +00001196source "drivers/w1/Kconfig"
1197
Russell King58273e52007-10-12 22:24:09 +01001198source "drivers/power/Kconfig"
1199
Jean Delvaread2f9312005-07-02 18:15:49 +02001200source "drivers/hwmon/Kconfig"
1201
Russell King70dfa3f2007-11-07 14:13:35 +00001202source "drivers/watchdog/Kconfig"
1203
Russell King58273e52007-10-12 22:24:09 +01001204source "drivers/ssb/Kconfig"
1205
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206#source "drivers/l3/Kconfig"
1207
Russell Kinga4e137a2005-08-18 10:06:59 +01001208source "drivers/mfd/Kconfig"
1209
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210source "drivers/media/Kconfig"
1211
1212source "drivers/video/Kconfig"
1213
1214source "sound/Kconfig"
1215
Sascha Hauerc2dade52006-12-12 10:32:42 +01001216source "drivers/hid/Kconfig"
1217
Linus Torvalds1da177e2005-04-16 15:20:36 -07001218source "drivers/usb/Kconfig"
1219
1220source "drivers/mmc/Kconfig"
1221
Russell King58273e52007-10-12 22:24:09 +01001222source "drivers/leds/Kconfig"
1223
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001224source "drivers/rtc/Kconfig"
1225
Dan Williams58168152007-01-02 11:10:43 -07001226source "drivers/dma/Kconfig"
1227
Dan Williamsabf07b12008-01-18 23:26:10 +01001228source "drivers/dca/Kconfig"
1229
Liam Girdwoodba7e4762008-04-30 17:13:42 +01001230source "drivers/regulator/Kconfig"
1231
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001232source "drivers/uio/Kconfig"
1233
Linus Torvalds1da177e2005-04-16 15:20:36 -07001234endmenu
1235
1236source "fs/Kconfig"
1237
Linus Torvalds1da177e2005-04-16 15:20:36 -07001238source "arch/arm/Kconfig.debug"
1239
1240source "security/Kconfig"
1241
1242source "crypto/Kconfig"
1243
1244source "lib/Kconfig"