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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
David Howellsb0b933c2008-02-08 04:19:27 -0800143config ARCH_SUPPORTS_AOUT
144 def_bool y
145
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100146config ARCH_MAY_HAVE_PC_FDC
147 bool
148
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800149config ZONE_DMA
150 bool
151 default y
152
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153config GENERIC_ISA_DMA
154 bool
155
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156config FIQ
157 bool
158
Al Viro034d2f52005-12-19 16:27:59 -0500159config ARCH_MTD_XIP
160 bool
161
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100162config GENERIC_HARDIRQS_NO__DO_IRQ
163 bool
164 def_bool y
165
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500166if OPROFILE
167
168config OPROFILE_ARMV6
169 def_bool y
170 depends on CPU_V6 && !SMP
171 select OPROFILE_ARM11_CORE
172
173config OPROFILE_MPCORE
174 def_bool y
175 depends on CPU_V6 && SMP
176 select OPROFILE_ARM11_CORE
177
178config OPROFILE_ARM11_CORE
179 bool
180
181endif
182
Hyok S. Choic760fc12006-03-27 15:18:50 +0100183config VECTORS_BASE
184 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900185 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186 default DRAM_BASE if REMAP_VECTORS_TO_RAM
187 default 0x00000000
188 help
189 The base address of exception vectors.
190
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191source "init/Kconfig"
192
193menu "System Type"
194
195choice
196 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000197 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100199config ARCH_AAEC2000
200 bool "Agilent AAEC-2000 based"
201 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700202 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100203 help
204 This enables support for systems based on the Agilent AAEC-2000
205
206config ARCH_INTEGRATOR
207 bool "ARM Ltd. Integrator family"
208 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700209 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100210 select ICST525
211 help
212 Support for ARM's Integrator platform.
213
214config ARCH_REALVIEW
215 bool "ARM Ltd. RealView family"
216 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700217 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100218 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100219 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100220 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100221 help
222 This enables support for ARM Ltd RealView boards.
223
224config ARCH_VERSATILE
225 bool "ARM Ltd. Versatile family"
226 select ARM_AMBA
227 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700228 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100229 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100230 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100231 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 help
233 This enables support for ARM Ltd Versatile board.
234
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100235config ARCH_AT91
236 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800237 select GENERIC_GPIO
David Brownell93686ae2008-07-28 15:46:22 -0700238 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100239 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100240 This enables support for systems based on the Atmel AT91RM9200,
241 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100242
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100244 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100246 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000247 select NO_IOPORT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000248 help
249 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250
251config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100252 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000253 help
254 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256config ARCH_EBSA110
257 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100258 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000259 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260 help
261 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000262 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 Ethernet interface, two PCMCIA sockets, two serial ports and a
264 parallel port.
265
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000266config ARCH_EP93XX
267 bool "EP93xx-based"
268 select ARM_AMBA
269 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100270 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700271 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700272 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000273 help
274 This enables support for the Cirrus EP93xx series of CPUs.
275
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276config ARCH_FOOTBRIDGE
277 bool "FootBridge"
278 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000279 help
280 Support for systems based on the DC21285 companion chip
281 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100283config ARCH_NETX
284 bool "Hilscher NetX based"
285 select ARM_VIC
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000286 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100287 This enables support for systems based on the Hilscher NetX Soc
288
289config ARCH_H720X
290 bool "Hynix HMS720x-based"
291 select ISA_DMA_API
292 help
293 This enables support for systems based on the Hynix HMS720x
294
295config ARCH_IMX
296 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100297 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100298 select GENERIC_TIME
299 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100300 help
301 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302
Russell King3b938be2007-05-12 11:25:44 +0100303config ARCH_IOP13XX
304 bool "IOP13xx-based"
305 depends on MMU
306 select PLAT_IOP
307 select PCI
308 select ARCH_SUPPORTS_MSI
309 help
310 Support for Intel's IOP13XX (XScale) family of processors.
311
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100312config ARCH_IOP32X
313 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100314 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100315 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100316 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100317 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100318 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000319 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100320 Support for Intel's 80219 and IOP32X (XScale) family of
321 processors.
322
323config ARCH_IOP33X
324 bool "IOP33x-based"
325 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100326 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100327 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100328 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100329 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100330 help
331 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332
Russell King3b938be2007-05-12 11:25:44 +0100333config ARCH_IXP23XX
334 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100335 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100336 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100337 help
Russell King3b938be2007-05-12 11:25:44 +0100338 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339
340config ARCH_IXP2000
341 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100342 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100343 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000344 help
345 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346
Russell King3b938be2007-05-12 11:25:44 +0100347config ARCH_IXP4XX
348 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100349 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100350 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100351 select GENERIC_TIME
352 select GENERIC_CLOCKEVENTS
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100353 help
Russell King3b938be2007-05-12 11:25:44 +0100354 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100355
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356config ARCH_L7200
357 bool "LinkUp-L7200"
358 select FIQ
359 help
360 Say Y here if you intend to run this kernel on a LinkUp Systems
361 L7200 Software Development Board which uses an ARM720T processor.
362 Information on this board can be obtained at:
363
364 <http://www.linkupsys.com/>
365
366 If you have any questions or comments about the Linux kernel port
367 to this board, send e-mail to <sjhill@cotw.com>.
368
Saeed Bishara651c74c2008-06-22 22:45:06 +0200369config ARCH_KIRKWOOD
370 bool "Marvell Kirkwood"
371 select PCI
372 select GENERIC_TIME
373 select GENERIC_CLOCKEVENTS
374 select PLAT_ORION
375 help
376 Support for the following Marvell Kirkwood series SoCs:
377 88F6180, 88F6192 and 88F6281.
378
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100379config ARCH_KS8695
380 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100381 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100382 help
383 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
384 System-on-Chip devices.
385
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100386config ARCH_NS9XXX
387 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100388 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100389 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100390 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700391 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100392 help
393 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
394 System.
395
396 <http://www.digi.com/products/microprocessors/index.jsp>
397
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200398config ARCH_LOKI
399 bool "Marvell Loki (88RC8480)"
400 select GENERIC_TIME
401 select GENERIC_CLOCKEVENTS
402 select PLAT_ORION
403 help
404 Support for the Marvell Loki (88RC8480) SoC.
405
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200406config ARCH_MV78XX0
407 bool "Marvell MV78xx0"
408 select PCI
409 select GENERIC_TIME
410 select GENERIC_CLOCKEVENTS
411 select PLAT_ORION
412 help
413 Support for the following Marvell MV78xx0 series SoCs:
414 MV781x0, MV782x0.
415
Quinn Jensen52c543f2007-07-09 22:06:53 +0100416config ARCH_MXC
417 bool "Freescale MXC/iMX-based"
Juergen Beisertd0f349f2008-07-05 10:02:50 +0200418 select GENERIC_TIME
419 select GENERIC_CLOCKEVENTS
Quinn Jensen52c543f2007-07-09 22:06:53 +0100420 select ARCH_MTD_XIP
Juergen Beisert07bd1a62008-07-05 10:02:49 +0200421 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100422 select ARCH_REQUIRE_GPIOLIB
Quinn Jensen52c543f2007-07-09 22:06:53 +0100423 help
424 Support for Freescale MXC/iMX-based family of processors
425
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400426config ARCH_ORION5X
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400427 bool "Marvell Orion"
428 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400429 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400430 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400431 select GENERIC_TIME
432 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400433 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400434 help
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400435 Support for the following Marvell Orion 5x series SoCs:
Lennert Buytenhekd2b2a6b2008-05-31 08:30:40 +0200436 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
437 Orion-2 (5281).
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400438
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100439config ARCH_PNX4008
440 bool "Philips Nexperia PNX4008 Mobile"
David Brownell9483a572008-07-23 21:26:48 -0700441 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100442 help
443 This enables support for Philips PNX4008 mobile platform.
444
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700446 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100447 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500448 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800449 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700450 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700451 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100452 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100453 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000454 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000455 help
eric miao2c8086a2007-09-11 19:13:17 -0700456 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457
458config ARCH_RPC
459 bool "RiscPC"
460 select ARCH_ACORN
461 select FIQ
462 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100463 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100464 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000465 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000466 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467 help
468 On the Acorn Risc-PC, Linux can support the internal IDE disk and
469 CD-ROM interface, serial and parallel port, and the floppy drive.
470
471config ARCH_SA1100
472 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100473 select ISA
Russell King3cd9e192005-06-25 19:29:34 +0100474 select ARCH_DISCONTIGMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +0000475 select ARCH_SPARSEMEM_ENABLE
476 select ARCH_SELECT_MEMORY_MODEL
Al Viro034d2f52005-12-19 16:27:59 -0500477 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800478 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000479 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100480 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700481 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100482 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700483 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000484 help
485 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486
487config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100488 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800489 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700490 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 help
492 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
493 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000494 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495
496config ARCH_SHARK
497 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100498 select ISA
499 select ISA_DMA
500 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000501 help
502 Support for the StrongARM based Digital DNARD machine, also known
503 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700504
505config ARCH_LH7A40X
506 bool "Sharp LH7A40X"
507 help
508 Say Y here for systems based on one of the Sharp LH7A40X
509 System on a Chip processors. These CPUs include an ARM922T
510 core with a wide array of integrated devices for
511 hand-held and low-power applications.
512
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100513config ARCH_DAVINCI
514 bool "TI DaVinci"
515 select GENERIC_TIME
516 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100517 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700518 select HAVE_CLK
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100519 help
520 Support for TI's DaVinci platform.
521
Russell King3b938be2007-05-12 11:25:44 +0100522config ARCH_OMAP
523 bool "TI OMAP"
524 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700525 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700526 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100527 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700528 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100529 help
530 Support for TI's OMAP platform (OMAP1 and OMAP2).
531
Brian Swetland30421022007-11-26 04:11:43 -0800532config ARCH_MSM7X00A
533 bool "Qualcomm MSM7X00A"
534 select GENERIC_TIME
535 select GENERIC_CLOCKEVENTS
536 help
537 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
538 apps processor of the MSM7X00A and depends on a shared memory
539 interface to the ARM9 modem processor which runs the baseband stack
540 and controls some vital subsystems (clock and power control, etc).
541 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
542
Linus Torvalds1da177e2005-04-16 15:20:36 -0700543endchoice
544
545source "arch/arm/mach-clps711x/Kconfig"
546
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000547source "arch/arm/mach-ep93xx/Kconfig"
548
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549source "arch/arm/mach-footbridge/Kconfig"
550
551source "arch/arm/mach-integrator/Kconfig"
552
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100553source "arch/arm/mach-iop32x/Kconfig"
554
555source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556
Dan Williams285f5fa2006-12-07 02:59:39 +0100557source "arch/arm/mach-iop13xx/Kconfig"
558
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559source "arch/arm/mach-ixp4xx/Kconfig"
560
561source "arch/arm/mach-ixp2000/Kconfig"
562
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100563source "arch/arm/mach-ixp23xx/Kconfig"
564
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200565source "arch/arm/mach-loki/Kconfig"
566
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200567source "arch/arm/mach-mv78xx0/Kconfig"
568
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569source "arch/arm/mach-pxa/Kconfig"
570
571source "arch/arm/mach-sa1100/Kconfig"
572
Tony Lindgrend48af152005-07-10 19:58:17 +0100573source "arch/arm/plat-omap/Kconfig"
574
575source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576
Tony Lindgren1dbae812005-11-10 14:26:51 +0000577source "arch/arm/mach-omap2/Kconfig"
578
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400579source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400580
Saeed Bishara651c74c2008-06-22 22:45:06 +0200581source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700582
Ben Dooksa21765a2007-02-11 18:31:01 +0100583source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100584source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100585
586if ARCH_S3C2410
587source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100589source "arch/arm/mach-s3c2412/Kconfig"
590source "arch/arm/mach-s3c2440/Kconfig"
591source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100592source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100593endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594
595source "arch/arm/mach-lh7a40x/Kconfig"
596
597source "arch/arm/mach-imx/Kconfig"
598
599source "arch/arm/mach-h720x/Kconfig"
600
601source "arch/arm/mach-versatile/Kconfig"
602
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100603source "arch/arm/mach-aaec2000/Kconfig"
604
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000605source "arch/arm/mach-realview/Kconfig"
606
Andrew Victor9d041262007-02-05 11:42:07 +0100607source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000608
Quinn Jensen52c543f2007-07-09 22:06:53 +0100609source "arch/arm/plat-mxc/Kconfig"
610
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100611source "arch/arm/mach-netx/Kconfig"
612
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100613source "arch/arm/mach-ns9xxx/Kconfig"
614
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100615source "arch/arm/mach-davinci/Kconfig"
616
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100617source "arch/arm/mach-ks8695/Kconfig"
618
Brian Swetland9e73c842007-11-26 04:12:13 -0800619source "arch/arm/mach-msm/Kconfig"
620
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621# Definitions to make life easier
622config ARCH_ACORN
623 bool
624
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100625config PLAT_IOP
626 bool
627
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400628config PLAT_ORION
629 bool
630
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631source arch/arm/mm/Kconfig
632
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100633config IWMMXT
634 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100635 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700636 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100637 help
638 Enable support for iWMMXt context switching at run time if
639 running on a CPU that supports it.
640
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
642config XSCALE_PMU
643 bool
644 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
645 default y
646
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100647if !MMU
648source "arch/arm/Kconfig-nommu"
649endif
650
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651endmenu
652
653source "arch/arm/common/Kconfig"
654
655config FORCE_MAX_ZONEORDER
656 int
657 depends on SA1111
658 default "9"
659
660menu "Bus support"
661
662config ARM_AMBA
663 bool
664
665config ISA
666 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667 help
668 Find out whether you have ISA slots on your motherboard. ISA is the
669 name of a bus system, i.e. the way the CPU talks to the other stuff
670 inside your box. Other bus systems are PCI, EISA, MicroChannel
671 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
672 newer boards don't support it. If you have ISA, say Y, otherwise N.
673
Russell King065909b2006-01-04 15:44:16 +0000674# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675config ISA_DMA
676 bool
Russell King065909b2006-01-04 15:44:16 +0000677 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678
Russell King065909b2006-01-04 15:44:16 +0000679# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100680config ISA_DMA_API
681 bool
Al Viro5cae8412005-05-04 05:39:22 +0100682
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100684 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685 help
686 Find out whether you have a PCI motherboard. PCI is the name of a
687 bus system, i.e. the way the CPU talks to the other stuff inside
688 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
689 VESA. If you have PCI, say Y, otherwise N.
690
Matthew Wilcox36e23592007-07-10 10:54:40 -0600691config PCI_SYSCALL
692 def_bool PCI
693
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694# Select the host bridge type
695config PCI_HOST_VIA82C505
696 bool
697 depends on PCI && ARCH_SHARK
698 default y
699
Mike Rapoporta0113a92007-11-25 08:55:34 +0100700config PCI_HOST_ITE8152
701 bool
702 depends on PCI && MACH_ARMCORE
703 default y
704 select DMABOUNCE
705
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706source "drivers/pci/Kconfig"
707
708source "drivers/pcmcia/Kconfig"
709
710endmenu
711
712menu "Kernel Features"
713
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100714source "kernel/time/Kconfig"
715
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716config SMP
717 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100718 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Jens Axboef6dd9fa2008-06-10 20:48:30 +0200719 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720 help
721 This enables support for systems with more than one CPU. If you have
722 a system with only one CPU, like most personal computers, say N. If
723 you have a system with more than one CPU, say Y.
724
725 If you say N here, the kernel will run on single and multiprocessor
726 machines, but will use only one CPU of a multiprocessor machine. If
727 you say Y here, the kernel will run on many, but not all, single
728 processor machines. On a single processor machine, the kernel will
729 run faster if you say N here.
730
Adrian Bunk03502fa2008-02-03 15:50:21 +0200731 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
733 <http://www.linuxdoc.org/docs.html#howto>.
734
735 If you don't know what to do here, say N.
736
737config NR_CPUS
738 int "Maximum number of CPUs (2-32)"
739 range 2 32
740 depends on SMP
741 default "4"
742
Russell Kinga054a812005-11-02 22:24:33 +0000743config HOTPLUG_CPU
744 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
745 depends on SMP && HOTPLUG && EXPERIMENTAL
746 help
747 Say Y here to experiment with turning CPUs off and on. CPUs
748 can be controlled through /sys/devices/system/cpu.
749
Russell King37ee16a2005-11-08 19:08:05 +0000750config LOCAL_TIMERS
751 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100752 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000753 default y
754 help
755 Enable support for local timers on SMP platforms, rather then the
756 legacy IPI broadcast method. Local timers allows the system
757 accounting to be spread across the timer interval, preventing a
758 "thundering herd" at every timer tick.
759
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760config PREEMPT
761 bool "Preemptible Kernel (EXPERIMENTAL)"
762 depends on EXPERIMENTAL
763 help
764 This option reduces the latency of the kernel when reacting to
765 real-time or interactive events by allowing a low priority process to
766 be preempted even if it is in kernel mode executing a system call.
767 This allows applications to run more reliably even when the system is
768 under load.
769
770 Say Y here if you are building a kernel for a desktop, embedded
771 or real-time system. Say N if you are unsure.
772
Russell Kingf8065812006-03-02 22:41:59 +0000773config HZ
774 int
775 default 128 if ARCH_L7200
776 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000777 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100778 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000779 default 100
780
Nicolas Pitre704bdda02006-01-14 16:33:50 +0000781config AEABI
782 bool "Use the ARM EABI to compile the kernel"
783 help
784 This option allows for the kernel to be compiled using the latest
785 ARM ABI (aka EABI). This is only useful if you are using a user
786 space environment that is also compiled with EABI.
787
788 Since there are major incompatibilities between the legacy ABI and
789 EABI, especially with regard to structure member alignment, this
790 option also changes the kernel syscall calling convention to
791 disambiguate both ABIs and allow for backward compatibility support
792 (selected with CONFIG_OABI_COMPAT).
793
794 To use this you need GCC version 4.0.0 or later.
795
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000796config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000797 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000798 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000799 default y
800 help
801 This option preserves the old syscall interface along with the
802 new (ARM EABI) one. It also provides a compatibility layer to
803 intercept syscalls that have structure arguments which layout
804 in memory differs between the legacy ABI and the new ARM EABI
805 (only for non "thumb" binaries). This option adds a tiny
806 overhead to all syscalls and produces a slightly larger kernel.
807 If you know you'll be using only pure EABI user space then you
808 can say N here. If this option is not selected and you attempt
809 to execute a legacy ABI binary then the result will be
810 UNPREDICTABLE (in fact it can be predicted that it won't work
811 at all). If in doubt say Y.
812
Mel Gormane80d6a22008-08-14 11:10:14 +0100813config ARCH_FLATMEM_HAS_HOLES
814 bool
815 default y
816 depends on FLATMEM
817
Dave Hansen3f22ab22005-06-23 00:07:43 -0700818config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100820 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821 help
822 Say Y to support efficient handling of discontiguous physical memory,
823 for architectures which are either NUMA (Non-Uniform Memory Access)
824 or have huge holes in the physical address space for other reasons.
825 See <file:Documentation/vm/numa> for more.
826
Russell King05944d72006-11-30 20:43:51 +0000827config ARCH_SPARSEMEM_ENABLE
828 bool
829
830config ARCH_SELECT_MEMORY_MODEL
831 bool
832
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700833config NODES_SHIFT
834 int
835 default "4" if ARCH_LH7A40X
836 default "2"
837 depends on NEED_MULTIPLE_NODES
838
Dave Hansen3f22ab22005-06-23 00:07:43 -0700839source "mm/Kconfig"
840
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841config LEDS
842 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +0100843 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
845 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
846 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000847 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100848 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400849 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850 help
851 If you say Y here, the LEDs on your machine will be used
852 to provide useful information about your current system status.
853
854 If you are compiling a kernel for a NetWinder or EBSA-285, you will
855 be able to select which LEDs are active using the options below. If
856 you are compiling a kernel for the EBSA-110 or the LART however, the
857 red LED will simply flash regularly to indicate that the system is
858 still functional. It is safe to say Y here if you have a CATS
859 system, but the driver will do nothing.
860
861config LEDS_TIMER
862 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700863 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
864 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100866 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867 default y if ARCH_EBSA110
868 help
869 If you say Y here, one of the system LEDs (the green one on the
870 NetWinder, the amber one on the EBSA285, or the red one on the LART)
871 will flash regularly to indicate that the system is still
872 operational. This is mainly useful to kernel hackers who are
873 debugging unstable kernels.
874
875 The LART uses the same LED for both Timer LED and CPU usage LED
876 functions. You may choose to use both, but the Timer LED function
877 will overrule the CPU usage LED.
878
879config LEDS_CPU
880 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700881 !ARCH_OMAP) \
882 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
883 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884 depends on LEDS
885 help
886 If you say Y here, the red LED will be used to give a good real
887 time indication of CPU usage, by lighting whenever the idle task
888 is not currently executing.
889
890 The LART uses the same LED for both Timer LED and CPU usage LED
891 functions. You may choose to use both, but the Timer LED function
892 will overrule the CPU usage LED.
893
894config ALIGNMENT_TRAP
895 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900896 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897 default y if !ARCH_EBSA110
898 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200899 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
901 address divisible by 4. On 32-bit ARM processors, these non-aligned
902 fetch/store instructions will be emulated in software if you say
903 here, which has a severe performance impact. This is necessary for
904 correct operation of some network protocols. With an IP-only
905 configuration it is safe to say N, otherwise say Y.
906
907endmenu
908
909menu "Boot options"
910
911# Compressed boot loader in ROM. Yes, we really want to ask about
912# TEXT and BSS so we preserve their values in the config files.
913config ZBOOT_ROM_TEXT
914 hex "Compressed ROM boot loader base address"
915 default "0"
916 help
917 The physical address at which the ROM-able zImage is to be
918 placed in the target. Platforms which normally make use of
919 ROM-able zImage formats normally set this to a suitable
920 value in their defconfig file.
921
922 If ZBOOT_ROM is not enabled, this has no effect.
923
924config ZBOOT_ROM_BSS
925 hex "Compressed ROM boot loader BSS address"
926 default "0"
927 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100928 The base address of an area of read/write memory in the target
929 for the ROM-able zImage which must be available while the
930 decompressor is running. It must be large enough to hold the
931 entire decompressed kernel plus an additional 128 KiB.
932 Platforms which normally make use of ROM-able zImage formats
933 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934
935 If ZBOOT_ROM is not enabled, this has no effect.
936
937config ZBOOT_ROM
938 bool "Compressed boot loader in ROM/flash"
939 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
940 help
941 Say Y here if you intend to execute your compressed kernel image
942 (zImage) directly from ROM or flash. If unsure, say N.
943
944config CMDLINE
945 string "Default kernel command string"
946 default ""
947 help
948 On some architectures (EBSA110 and CATS), there is currently no way
949 for the boot loader to pass arguments to the kernel. For these
950 architectures, you should supply some command-line options at build
951 time by entering them here. As a minimum, you should specify the
952 memory size and the root device (e.g., mem=64M root=/dev/nfs).
953
954config XIP_KERNEL
955 bool "Kernel Execute-In-Place from ROM"
956 depends on !ZBOOT_ROM
957 help
958 Execute-In-Place allows the kernel to run from non-volatile storage
959 directly addressable by the CPU, such as NOR flash. This saves RAM
960 space since the text section of the kernel is not loaded from flash
961 to RAM. Read-write sections, such as the data section and stack,
962 are still copied to RAM. The XIP kernel is not compressed since
963 it has to run directly from flash, so it will take more space to
964 store it. The flash address used to link the kernel object files,
965 and for storing it, is configuration dependent. Therefore, if you
966 say Y here, you must know the proper physical address where to
967 store the kernel image depending on your own flash memory usage.
968
969 Also note that the make target becomes "make xipImage" rather than
970 "make zImage" or "make Image". The final kernel binary to put in
971 ROM memory will be arch/arm/boot/xipImage.
972
973 If unsure, say N.
974
975config XIP_PHYS_ADDR
976 hex "XIP Kernel Physical Location"
977 depends on XIP_KERNEL
978 default "0x00080000"
979 help
980 This is the physical address in your flash memory the kernel will
981 be linked for and stored to. This address is dependent on your
982 own flash usage.
983
Richard Purdiec587e4a2007-02-06 21:29:00 +0100984config KEXEC
985 bool "Kexec system call (EXPERIMENTAL)"
986 depends on EXPERIMENTAL
987 help
988 kexec is a system call that implements the ability to shutdown your
989 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200990 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +0100991 you can start any kernel with it, not just Linux.
992
993 It is an ongoing process to be certain the hardware in a machine
994 is properly shutdown, so do not be surprised if this code does not
995 initially work for you. It may help to enable device hotplugging
996 support.
997
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100998config ATAGS_PROC
999 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001000 depends on KEXEC
1001 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001002 help
1003 Should the atags used to boot the kernel be exported in an "atags"
1004 file in procfs. Useful with kexec.
1005
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006endmenu
1007
Russell King9e2697f2007-12-14 13:30:14 +00001008if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009
1010menu "CPU Frequency scaling"
1011
1012source "drivers/cpufreq/Kconfig"
1013
1014config CPU_FREQ_SA1100
1015 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +01001016 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 -07001017 default y
1018
1019config CPU_FREQ_SA1110
1020 bool
1021 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1022 default y
1023
1024config CPU_FREQ_INTEGRATOR
1025 tristate "CPUfreq driver for ARM Integrator CPUs"
1026 depends on ARCH_INTEGRATOR && CPU_FREQ
1027 default y
1028 help
1029 This enables the CPUfreq driver for ARM Integrator CPUs.
1030
1031 For details, take a look at <file:Documentation/cpu-freq>.
1032
1033 If in doubt, say Y.
1034
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +01001035config CPU_FREQ_IMX
1036 tristate "CPUfreq driver for i.MX CPUs"
1037 depends on ARCH_IMX && CPU_FREQ
1038 default n
1039 help
1040 This enables the CPUfreq driver for i.MX CPUs.
1041
1042 If in doubt, say N.
1043
Russell King9e2697f2007-12-14 13:30:14 +00001044config CPU_FREQ_PXA
1045 bool
1046 depends on CPU_FREQ && ARCH_PXA && PXA25x
1047 default y
1048 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1049
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050endmenu
1051
1052endif
1053
1054menu "Floating point emulation"
1055
1056comment "At least one emulation must be selected"
1057
1058config FPE_NWFPE
1059 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001060 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061 ---help---
1062 Say Y to include the NWFPE floating point emulator in the kernel.
1063 This is necessary to run most binaries. Linux does not currently
1064 support floating point hardware so you need to say Y here even if
1065 your machine has an FPA or floating point co-processor podule.
1066
1067 You may say N here if you are going to load the Acorn FPEmulator
1068 early in the bootup.
1069
1070config FPE_NWFPE_XP
1071 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001072 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073 help
1074 Say Y to include 80-bit support in the kernel floating-point
1075 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1076 Note that gcc does not generate 80-bit operations by default,
1077 so in most cases this option only enlarges the size of the
1078 floating point emulator without any good reason.
1079
1080 You almost surely want to say N here.
1081
1082config FPE_FASTFPE
1083 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001084 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001085 ---help---
1086 Say Y here to include the FAST floating point emulator in the kernel.
1087 This is an experimental much faster emulator which now also has full
1088 precision for the mantissa. It does not support any exceptions.
1089 It is very simple, and approximately 3-6 times faster than NWFPE.
1090
1091 It should be sufficient for most programs. It may be not suitable
1092 for scientific calculations, but you have to check this for yourself.
1093 If you do not feel you need a faster FP emulation you should better
1094 choose NWFPE.
1095
1096config VFP
1097 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001098 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099 help
1100 Say Y to include VFP support code in the kernel. This is needed
1101 if your hardware includes a VFP unit.
1102
1103 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1104 release notes and additional status information.
1105
1106 Say N if your target does not have VFP hardware.
1107
Catalin Marinas25ebee02007-09-25 15:22:24 +01001108config VFPv3
1109 bool
1110 depends on VFP
1111 default y if CPU_V7
1112
Catalin Marinasb5872db2008-01-10 19:16:17 +01001113config NEON
1114 bool "Advanced SIMD (NEON) Extension support"
1115 depends on VFPv3 && CPU_V7
1116 help
1117 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1118 Extension.
1119
Linus Torvalds1da177e2005-04-16 15:20:36 -07001120endmenu
1121
1122menu "Userspace binary formats"
1123
1124source "fs/Kconfig.binfmt"
1125
1126config ARTHUR
1127 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001128 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129 help
1130 Say Y here to include the kernel code necessary if you want to run
1131 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1132 experimental; if this sounds frightening, say N and sleep in peace.
1133 You can also say M here to compile this support as a module (which
1134 will be called arthur).
1135
1136endmenu
1137
1138menu "Power management options"
1139
Russell Kingeceab4a2005-11-15 11:31:41 +00001140source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001141
Johannes Bergf4cb5702007-12-08 02:14:00 +01001142config ARCH_SUSPEND_POSSIBLE
1143 def_bool y
1144
Linus Torvalds1da177e2005-04-16 15:20:36 -07001145endmenu
1146
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001147source "net/Kconfig"
1148
Linus Torvalds1da177e2005-04-16 15:20:36 -07001149menu "Device Drivers"
1150
1151source "drivers/base/Kconfig"
1152
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001153source "drivers/connector/Kconfig"
1154
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001155if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156source "drivers/mtd/Kconfig"
1157endif
1158
1159source "drivers/parport/Kconfig"
1160
1161source "drivers/pnp/Kconfig"
1162
1163source "drivers/block/Kconfig"
1164
Russell King58273e52007-10-12 22:24:09 +01001165# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1166
1167source "drivers/misc/Kconfig"
1168
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170
1171source "drivers/scsi/Kconfig"
1172
Martin Michlmayreb370f02006-11-17 00:14:35 +01001173source "drivers/ata/Kconfig"
1174
Linus Torvalds1da177e2005-04-16 15:20:36 -07001175source "drivers/md/Kconfig"
1176
1177source "drivers/message/fusion/Kconfig"
1178
1179source "drivers/ieee1394/Kconfig"
1180
1181source "drivers/message/i2o/Kconfig"
1182
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001183source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184
1185source "drivers/isdn/Kconfig"
1186
1187# input before char - char/joystick depends on it. As does USB.
1188
1189source "drivers/input/Kconfig"
1190
1191source "drivers/char/Kconfig"
1192
1193source "drivers/i2c/Kconfig"
1194
David Brownell8ae12a02006-01-08 13:34:19 -08001195source "drivers/spi/Kconfig"
1196
David Brownella9c5fff2008-02-04 22:28:17 -08001197source "drivers/gpio/Kconfig"
1198
Alessandro Zummo04916c02006-03-10 22:30:01 +00001199source "drivers/w1/Kconfig"
1200
Russell King58273e52007-10-12 22:24:09 +01001201source "drivers/power/Kconfig"
1202
Jean Delvaread2f9312005-07-02 18:15:49 +02001203source "drivers/hwmon/Kconfig"
1204
Russell King70dfa3f2007-11-07 14:13:35 +00001205source "drivers/watchdog/Kconfig"
1206
Russell King58273e52007-10-12 22:24:09 +01001207source "drivers/ssb/Kconfig"
1208
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209#source "drivers/l3/Kconfig"
1210
Russell Kinga4e137a2005-08-18 10:06:59 +01001211source "drivers/mfd/Kconfig"
1212
Linus Torvalds1da177e2005-04-16 15:20:36 -07001213source "drivers/media/Kconfig"
1214
1215source "drivers/video/Kconfig"
1216
1217source "sound/Kconfig"
1218
Sascha Hauerc2dade52006-12-12 10:32:42 +01001219source "drivers/hid/Kconfig"
1220
Linus Torvalds1da177e2005-04-16 15:20:36 -07001221source "drivers/usb/Kconfig"
1222
1223source "drivers/mmc/Kconfig"
1224
Russell King58273e52007-10-12 22:24:09 +01001225source "drivers/leds/Kconfig"
1226
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001227source "drivers/rtc/Kconfig"
1228
Dan Williams58168152007-01-02 11:10:43 -07001229source "drivers/dma/Kconfig"
1230
Dan Williamsabf07b12008-01-18 23:26:10 +01001231source "drivers/dca/Kconfig"
1232
Liam Girdwoodba7e4762008-04-30 17:13:42 +01001233source "drivers/regulator/Kconfig"
1234
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001235source "drivers/uio/Kconfig"
1236
Linus Torvalds1da177e2005-04-16 15:20:36 -07001237endmenu
1238
1239source "fs/Kconfig"
1240
Linus Torvalds1da177e2005-04-16 15:20:36 -07001241source "arch/arm/Kconfig.debug"
1242
1243source "security/Kconfig"
1244
1245source "crypto/Kconfig"
1246
1247source "lib/Kconfig"