blob: ea3c858d7536785a670389ce536ae3da45f04c9c [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config ARM
9 bool
10 default y
Adrian Bunk2064c942008-04-28 23:44:43 +020011 select HAVE_IDE
Alessandro Zummo12b824f2006-03-27 01:16:35 -080012 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000013 select SYS_SUPPORTS_APM_EMULATION
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050014 select HAVE_OPROFILE
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 Kingd142b6e72007-11-12 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 Brownelldce11152008-09-07 23:41:04 -0700518 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700519 select HAVE_CLK
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100520 help
521 Support for TI's DaVinci platform.
522
Russell King3b938be2007-05-12 11:25:44 +0100523config ARCH_OMAP
524 bool "TI OMAP"
525 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700526 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700527 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100528 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700529 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100530 help
531 Support for TI's OMAP platform (OMAP1 and OMAP2).
532
Brian Swetland30421022007-11-26 04:11:43 -0800533config ARCH_MSM7X00A
534 bool "Qualcomm MSM7X00A"
535 select GENERIC_TIME
536 select GENERIC_CLOCKEVENTS
537 help
538 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
539 apps processor of the MSM7X00A and depends on a shared memory
540 interface to the ARM9 modem processor which runs the baseband stack
541 and controls some vital subsystems (clock and power control, etc).
542 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
543
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544endchoice
545
546source "arch/arm/mach-clps711x/Kconfig"
547
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000548source "arch/arm/mach-ep93xx/Kconfig"
549
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550source "arch/arm/mach-footbridge/Kconfig"
551
552source "arch/arm/mach-integrator/Kconfig"
553
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100554source "arch/arm/mach-iop32x/Kconfig"
555
556source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557
Dan Williams285f5fa2006-12-07 02:59:39 +0100558source "arch/arm/mach-iop13xx/Kconfig"
559
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560source "arch/arm/mach-ixp4xx/Kconfig"
561
562source "arch/arm/mach-ixp2000/Kconfig"
563
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100564source "arch/arm/mach-ixp23xx/Kconfig"
565
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200566source "arch/arm/mach-loki/Kconfig"
567
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200568source "arch/arm/mach-mv78xx0/Kconfig"
569
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570source "arch/arm/mach-pxa/Kconfig"
571
572source "arch/arm/mach-sa1100/Kconfig"
573
Tony Lindgrend48af152005-07-10 19:58:17 +0100574source "arch/arm/plat-omap/Kconfig"
575
576source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577
Tony Lindgren1dbae812005-11-10 14:26:51 +0000578source "arch/arm/mach-omap2/Kconfig"
579
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400580source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400581
Saeed Bishara651c74c2008-06-22 22:45:06 +0200582source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583
Ben Dooksa21765a2007-02-11 18:31:01 +0100584source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100585source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100586
587if ARCH_S3C2410
588source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100590source "arch/arm/mach-s3c2412/Kconfig"
591source "arch/arm/mach-s3c2440/Kconfig"
592source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100593source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100594endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595
596source "arch/arm/mach-lh7a40x/Kconfig"
597
598source "arch/arm/mach-imx/Kconfig"
599
600source "arch/arm/mach-h720x/Kconfig"
601
602source "arch/arm/mach-versatile/Kconfig"
603
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100604source "arch/arm/mach-aaec2000/Kconfig"
605
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000606source "arch/arm/mach-realview/Kconfig"
607
Andrew Victor9d041262007-02-05 11:42:07 +0100608source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000609
Quinn Jensen52c543f2007-07-09 22:06:53 +0100610source "arch/arm/plat-mxc/Kconfig"
611
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100612source "arch/arm/mach-netx/Kconfig"
613
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100614source "arch/arm/mach-ns9xxx/Kconfig"
615
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100616source "arch/arm/mach-davinci/Kconfig"
617
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100618source "arch/arm/mach-ks8695/Kconfig"
619
Brian Swetland9e73c842007-11-26 04:12:13 -0800620source "arch/arm/mach-msm/Kconfig"
621
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622# Definitions to make life easier
623config ARCH_ACORN
624 bool
625
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100626config PLAT_IOP
627 bool
628
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400629config PLAT_ORION
630 bool
631
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632source arch/arm/mm/Kconfig
633
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100634config IWMMXT
635 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100636 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700637 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100638 help
639 Enable support for iWMMXt context switching at run time if
640 running on a CPU that supports it.
641
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
643config XSCALE_PMU
644 bool
645 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
646 default y
647
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100648if !MMU
649source "arch/arm/Kconfig-nommu"
650endif
651
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652endmenu
653
654source "arch/arm/common/Kconfig"
655
656config FORCE_MAX_ZONEORDER
657 int
658 depends on SA1111
659 default "9"
660
661menu "Bus support"
662
663config ARM_AMBA
664 bool
665
666config ISA
667 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668 help
669 Find out whether you have ISA slots on your motherboard. ISA is the
670 name of a bus system, i.e. the way the CPU talks to the other stuff
671 inside your box. Other bus systems are PCI, EISA, MicroChannel
672 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
673 newer boards don't support it. If you have ISA, say Y, otherwise N.
674
Russell King065909b2006-01-04 15:44:16 +0000675# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676config ISA_DMA
677 bool
Russell King065909b2006-01-04 15:44:16 +0000678 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679
Russell King065909b2006-01-04 15:44:16 +0000680# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100681config ISA_DMA_API
682 bool
Al Viro5cae8412005-05-04 05:39:22 +0100683
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100685 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686 help
687 Find out whether you have a PCI motherboard. PCI is the name of a
688 bus system, i.e. the way the CPU talks to the other stuff inside
689 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
690 VESA. If you have PCI, say Y, otherwise N.
691
Matthew Wilcox36e23592007-07-10 10:54:40 -0600692config PCI_SYSCALL
693 def_bool PCI
694
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695# Select the host bridge type
696config PCI_HOST_VIA82C505
697 bool
698 depends on PCI && ARCH_SHARK
699 default y
700
Mike Rapoporta0113a92007-11-25 08:55:34 +0100701config PCI_HOST_ITE8152
702 bool
703 depends on PCI && MACH_ARMCORE
704 default y
705 select DMABOUNCE
706
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707source "drivers/pci/Kconfig"
708
709source "drivers/pcmcia/Kconfig"
710
711endmenu
712
713menu "Kernel Features"
714
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100715source "kernel/time/Kconfig"
716
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717config SMP
718 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100719 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Jens Axboef6dd9fa2008-06-10 20:48:30 +0200720 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721 help
722 This enables support for systems with more than one CPU. If you have
723 a system with only one CPU, like most personal computers, say N. If
724 you have a system with more than one CPU, say Y.
725
726 If you say N here, the kernel will run on single and multiprocessor
727 machines, but will use only one CPU of a multiprocessor machine. If
728 you say Y here, the kernel will run on many, but not all, single
729 processor machines. On a single processor machine, the kernel will
730 run faster if you say N here.
731
Adrian Bunk03502fa2008-02-03 15:50:21 +0200732 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
734 <http://www.linuxdoc.org/docs.html#howto>.
735
736 If you don't know what to do here, say N.
737
738config NR_CPUS
739 int "Maximum number of CPUs (2-32)"
740 range 2 32
741 depends on SMP
742 default "4"
743
Russell Kinga054a812005-11-02 22:24:33 +0000744config HOTPLUG_CPU
745 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
746 depends on SMP && HOTPLUG && EXPERIMENTAL
747 help
748 Say Y here to experiment with turning CPUs off and on. CPUs
749 can be controlled through /sys/devices/system/cpu.
750
Russell King37ee16a2005-11-08 19:08:05 +0000751config LOCAL_TIMERS
752 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100753 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000754 default y
755 help
756 Enable support for local timers on SMP platforms, rather then the
757 legacy IPI broadcast method. Local timers allows the system
758 accounting to be spread across the timer interval, preventing a
759 "thundering herd" at every timer tick.
760
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761config PREEMPT
762 bool "Preemptible Kernel (EXPERIMENTAL)"
763 depends on EXPERIMENTAL
764 help
765 This option reduces the latency of the kernel when reacting to
766 real-time or interactive events by allowing a low priority process to
767 be preempted even if it is in kernel mode executing a system call.
768 This allows applications to run more reliably even when the system is
769 under load.
770
771 Say Y here if you are building a kernel for a desktop, embedded
772 or real-time system. Say N if you are unsure.
773
Russell Kingf8065812006-03-02 22:41:59 +0000774config HZ
775 int
776 default 128 if ARCH_L7200
777 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000778 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100779 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000780 default 100
781
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000782config AEABI
783 bool "Use the ARM EABI to compile the kernel"
784 help
785 This option allows for the kernel to be compiled using the latest
786 ARM ABI (aka EABI). This is only useful if you are using a user
787 space environment that is also compiled with EABI.
788
789 Since there are major incompatibilities between the legacy ABI and
790 EABI, especially with regard to structure member alignment, this
791 option also changes the kernel syscall calling convention to
792 disambiguate both ABIs and allow for backward compatibility support
793 (selected with CONFIG_OABI_COMPAT).
794
795 To use this you need GCC version 4.0.0 or later.
796
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000797config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000798 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000799 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000800 default y
801 help
802 This option preserves the old syscall interface along with the
803 new (ARM EABI) one. It also provides a compatibility layer to
804 intercept syscalls that have structure arguments which layout
805 in memory differs between the legacy ABI and the new ARM EABI
806 (only for non "thumb" binaries). This option adds a tiny
807 overhead to all syscalls and produces a slightly larger kernel.
808 If you know you'll be using only pure EABI user space then you
809 can say N here. If this option is not selected and you attempt
810 to execute a legacy ABI binary then the result will be
811 UNPREDICTABLE (in fact it can be predicted that it won't work
812 at all). If in doubt say Y.
813
Mel Gormane80d6a22008-08-14 11:10:14 +0100814config ARCH_FLATMEM_HAS_HOLES
815 bool
816 default y
817 depends on FLATMEM
818
Dave Hansen3f22ab22005-06-23 00:07:43 -0700819config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700820 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100821 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822 help
823 Say Y to support efficient handling of discontiguous physical memory,
824 for architectures which are either NUMA (Non-Uniform Memory Access)
825 or have huge holes in the physical address space for other reasons.
826 See <file:Documentation/vm/numa> for more.
827
Russell King05944d72006-11-30 20:43:51 +0000828config ARCH_SPARSEMEM_ENABLE
829 bool
830
831config ARCH_SELECT_MEMORY_MODEL
832 bool
833
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700834config NODES_SHIFT
835 int
836 default "4" if ARCH_LH7A40X
837 default "2"
838 depends on NEED_MULTIPLE_NODES
839
Dave Hansen3f22ab22005-06-23 00:07:43 -0700840source "mm/Kconfig"
841
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842config LEDS
843 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +0100844 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
846 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
847 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000848 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100849 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400850 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851 help
852 If you say Y here, the LEDs on your machine will be used
853 to provide useful information about your current system status.
854
855 If you are compiling a kernel for a NetWinder or EBSA-285, you will
856 be able to select which LEDs are active using the options below. If
857 you are compiling a kernel for the EBSA-110 or the LART however, the
858 red LED will simply flash regularly to indicate that the system is
859 still functional. It is safe to say Y here if you have a CATS
860 system, but the driver will do nothing.
861
862config LEDS_TIMER
863 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700864 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
865 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100867 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868 default y if ARCH_EBSA110
869 help
870 If you say Y here, one of the system LEDs (the green one on the
871 NetWinder, the amber one on the EBSA285, or the red one on the LART)
872 will flash regularly to indicate that the system is still
873 operational. This is mainly useful to kernel hackers who are
874 debugging unstable kernels.
875
876 The LART uses the same LED for both Timer LED and CPU usage LED
877 functions. You may choose to use both, but the Timer LED function
878 will overrule the CPU usage LED.
879
880config LEDS_CPU
881 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700882 !ARCH_OMAP) \
883 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
884 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885 depends on LEDS
886 help
887 If you say Y here, the red LED will be used to give a good real
888 time indication of CPU usage, by lighting whenever the idle task
889 is not currently executing.
890
891 The LART uses the same LED for both Timer LED and CPU usage LED
892 functions. You may choose to use both, but the Timer LED function
893 will overrule the CPU usage LED.
894
895config ALIGNMENT_TRAP
896 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900897 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898 default y if !ARCH_EBSA110
899 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200900 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
902 address divisible by 4. On 32-bit ARM processors, these non-aligned
903 fetch/store instructions will be emulated in software if you say
904 here, which has a severe performance impact. This is necessary for
905 correct operation of some network protocols. With an IP-only
906 configuration it is safe to say N, otherwise say Y.
907
908endmenu
909
910menu "Boot options"
911
912# Compressed boot loader in ROM. Yes, we really want to ask about
913# TEXT and BSS so we preserve their values in the config files.
914config ZBOOT_ROM_TEXT
915 hex "Compressed ROM boot loader base address"
916 default "0"
917 help
918 The physical address at which the ROM-able zImage is to be
919 placed in the target. Platforms which normally make use of
920 ROM-able zImage formats normally set this to a suitable
921 value in their defconfig file.
922
923 If ZBOOT_ROM is not enabled, this has no effect.
924
925config ZBOOT_ROM_BSS
926 hex "Compressed ROM boot loader BSS address"
927 default "0"
928 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100929 The base address of an area of read/write memory in the target
930 for the ROM-able zImage which must be available while the
931 decompressor is running. It must be large enough to hold the
932 entire decompressed kernel plus an additional 128 KiB.
933 Platforms which normally make use of ROM-able zImage formats
934 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935
936 If ZBOOT_ROM is not enabled, this has no effect.
937
938config ZBOOT_ROM
939 bool "Compressed boot loader in ROM/flash"
940 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
941 help
942 Say Y here if you intend to execute your compressed kernel image
943 (zImage) directly from ROM or flash. If unsure, say N.
944
945config CMDLINE
946 string "Default kernel command string"
947 default ""
948 help
949 On some architectures (EBSA110 and CATS), there is currently no way
950 for the boot loader to pass arguments to the kernel. For these
951 architectures, you should supply some command-line options at build
952 time by entering them here. As a minimum, you should specify the
953 memory size and the root device (e.g., mem=64M root=/dev/nfs).
954
955config XIP_KERNEL
956 bool "Kernel Execute-In-Place from ROM"
957 depends on !ZBOOT_ROM
958 help
959 Execute-In-Place allows the kernel to run from non-volatile storage
960 directly addressable by the CPU, such as NOR flash. This saves RAM
961 space since the text section of the kernel is not loaded from flash
962 to RAM. Read-write sections, such as the data section and stack,
963 are still copied to RAM. The XIP kernel is not compressed since
964 it has to run directly from flash, so it will take more space to
965 store it. The flash address used to link the kernel object files,
966 and for storing it, is configuration dependent. Therefore, if you
967 say Y here, you must know the proper physical address where to
968 store the kernel image depending on your own flash memory usage.
969
970 Also note that the make target becomes "make xipImage" rather than
971 "make zImage" or "make Image". The final kernel binary to put in
972 ROM memory will be arch/arm/boot/xipImage.
973
974 If unsure, say N.
975
976config XIP_PHYS_ADDR
977 hex "XIP Kernel Physical Location"
978 depends on XIP_KERNEL
979 default "0x00080000"
980 help
981 This is the physical address in your flash memory the kernel will
982 be linked for and stored to. This address is dependent on your
983 own flash usage.
984
Richard Purdiec587e4a2007-02-06 21:29:00 +0100985config KEXEC
986 bool "Kexec system call (EXPERIMENTAL)"
987 depends on EXPERIMENTAL
988 help
989 kexec is a system call that implements the ability to shutdown your
990 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200991 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +0100992 you can start any kernel with it, not just Linux.
993
994 It is an ongoing process to be certain the hardware in a machine
995 is properly shutdown, so do not be surprised if this code does not
996 initially work for you. It may help to enable device hotplugging
997 support.
998
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100999config ATAGS_PROC
1000 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001001 depends on KEXEC
1002 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001003 help
1004 Should the atags used to boot the kernel be exported in an "atags"
1005 file in procfs. Useful with kexec.
1006
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007endmenu
1008
Russell King9e2697f2007-12-14 13:30:14 +00001009if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010
1011menu "CPU Frequency scaling"
1012
1013source "drivers/cpufreq/Kconfig"
1014
1015config CPU_FREQ_SA1100
1016 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +01001017 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 -07001018 default y
1019
1020config CPU_FREQ_SA1110
1021 bool
1022 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1023 default y
1024
1025config CPU_FREQ_INTEGRATOR
1026 tristate "CPUfreq driver for ARM Integrator CPUs"
1027 depends on ARCH_INTEGRATOR && CPU_FREQ
1028 default y
1029 help
1030 This enables the CPUfreq driver for ARM Integrator CPUs.
1031
1032 For details, take a look at <file:Documentation/cpu-freq>.
1033
1034 If in doubt, say Y.
1035
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +01001036config CPU_FREQ_IMX
1037 tristate "CPUfreq driver for i.MX CPUs"
1038 depends on ARCH_IMX && CPU_FREQ
1039 default n
1040 help
1041 This enables the CPUfreq driver for i.MX CPUs.
1042
1043 If in doubt, say N.
1044
Russell King9e2697f2007-12-14 13:30:14 +00001045config CPU_FREQ_PXA
1046 bool
1047 depends on CPU_FREQ && ARCH_PXA && PXA25x
1048 default y
1049 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1050
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051endmenu
1052
1053endif
1054
1055menu "Floating point emulation"
1056
1057comment "At least one emulation must be selected"
1058
1059config FPE_NWFPE
1060 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001061 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062 ---help---
1063 Say Y to include the NWFPE floating point emulator in the kernel.
1064 This is necessary to run most binaries. Linux does not currently
1065 support floating point hardware so you need to say Y here even if
1066 your machine has an FPA or floating point co-processor podule.
1067
1068 You may say N here if you are going to load the Acorn FPEmulator
1069 early in the bootup.
1070
1071config FPE_NWFPE_XP
1072 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001073 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074 help
1075 Say Y to include 80-bit support in the kernel floating-point
1076 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1077 Note that gcc does not generate 80-bit operations by default,
1078 so in most cases this option only enlarges the size of the
1079 floating point emulator without any good reason.
1080
1081 You almost surely want to say N here.
1082
1083config FPE_FASTFPE
1084 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001085 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001086 ---help---
1087 Say Y here to include the FAST floating point emulator in the kernel.
1088 This is an experimental much faster emulator which now also has full
1089 precision for the mantissa. It does not support any exceptions.
1090 It is very simple, and approximately 3-6 times faster than NWFPE.
1091
1092 It should be sufficient for most programs. It may be not suitable
1093 for scientific calculations, but you have to check this for yourself.
1094 If you do not feel you need a faster FP emulation you should better
1095 choose NWFPE.
1096
1097config VFP
1098 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001099 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100 help
1101 Say Y to include VFP support code in the kernel. This is needed
1102 if your hardware includes a VFP unit.
1103
1104 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1105 release notes and additional status information.
1106
1107 Say N if your target does not have VFP hardware.
1108
Catalin Marinas25ebee02007-09-25 15:22:24 +01001109config VFPv3
1110 bool
1111 depends on VFP
1112 default y if CPU_V7
1113
Catalin Marinasb5872db2008-01-10 19:16:17 +01001114config NEON
1115 bool "Advanced SIMD (NEON) Extension support"
1116 depends on VFPv3 && CPU_V7
1117 help
1118 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1119 Extension.
1120
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121endmenu
1122
1123menu "Userspace binary formats"
1124
1125source "fs/Kconfig.binfmt"
1126
1127config ARTHUR
1128 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001129 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001130 help
1131 Say Y here to include the kernel code necessary if you want to run
1132 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1133 experimental; if this sounds frightening, say N and sleep in peace.
1134 You can also say M here to compile this support as a module (which
1135 will be called arthur).
1136
1137endmenu
1138
1139menu "Power management options"
1140
Russell Kingeceab4a2005-11-15 11:31:41 +00001141source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142
Johannes Bergf4cb5702007-12-08 02:14:00 +01001143config ARCH_SUSPEND_POSSIBLE
1144 def_bool y
1145
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146endmenu
1147
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001148source "net/Kconfig"
1149
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150menu "Device Drivers"
1151
1152source "drivers/base/Kconfig"
1153
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001154source "drivers/connector/Kconfig"
1155
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001156if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001157source "drivers/mtd/Kconfig"
1158endif
1159
1160source "drivers/parport/Kconfig"
1161
1162source "drivers/pnp/Kconfig"
1163
1164source "drivers/block/Kconfig"
1165
Russell King58273e52007-10-12 22:24:09 +01001166# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1167
1168source "drivers/misc/Kconfig"
1169
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171
1172source "drivers/scsi/Kconfig"
1173
Martin Michlmayreb370f02006-11-17 00:14:35 +01001174source "drivers/ata/Kconfig"
1175
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176source "drivers/md/Kconfig"
1177
1178source "drivers/message/fusion/Kconfig"
1179
1180source "drivers/ieee1394/Kconfig"
1181
1182source "drivers/message/i2o/Kconfig"
1183
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001184source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185
1186source "drivers/isdn/Kconfig"
1187
1188# input before char - char/joystick depends on it. As does USB.
1189
1190source "drivers/input/Kconfig"
1191
1192source "drivers/char/Kconfig"
1193
1194source "drivers/i2c/Kconfig"
1195
David Brownell8ae12a02006-01-08 13:34:19 -08001196source "drivers/spi/Kconfig"
1197
David Brownella9c5fff2008-02-04 22:28:17 -08001198source "drivers/gpio/Kconfig"
1199
Alessandro Zummo04916c02006-03-10 22:30:01 +00001200source "drivers/w1/Kconfig"
1201
Russell King58273e52007-10-12 22:24:09 +01001202source "drivers/power/Kconfig"
1203
Jean Delvaread2f9312005-07-02 18:15:49 +02001204source "drivers/hwmon/Kconfig"
1205
Russell King70dfa3f2007-11-07 14:13:35 +00001206source "drivers/watchdog/Kconfig"
1207
Russell King58273e52007-10-12 22:24:09 +01001208source "drivers/ssb/Kconfig"
1209
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210#source "drivers/l3/Kconfig"
1211
Russell Kinga4e137a2005-08-18 10:06:59 +01001212source "drivers/mfd/Kconfig"
1213
Linus Torvalds1da177e2005-04-16 15:20:36 -07001214source "drivers/media/Kconfig"
1215
1216source "drivers/video/Kconfig"
1217
1218source "sound/Kconfig"
1219
Sascha Hauerc2dade512006-12-12 10:32:42 +01001220source "drivers/hid/Kconfig"
1221
Linus Torvalds1da177e2005-04-16 15:20:36 -07001222source "drivers/usb/Kconfig"
1223
1224source "drivers/mmc/Kconfig"
1225
Russell King58273e52007-10-12 22:24:09 +01001226source "drivers/leds/Kconfig"
1227
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001228source "drivers/rtc/Kconfig"
1229
Dan Williams58168152007-01-02 11:10:43 -07001230source "drivers/dma/Kconfig"
1231
Dan Williamsabf07b12008-01-18 23:26:10 +01001232source "drivers/dca/Kconfig"
1233
Liam Girdwoodba7e4762008-04-30 17:13:42 +01001234source "drivers/regulator/Kconfig"
1235
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001236source "drivers/uio/Kconfig"
1237
Linus Torvalds1da177e2005-04-16 15:20:36 -07001238endmenu
1239
1240source "fs/Kconfig"
1241
Linus Torvalds1da177e2005-04-16 15:20:36 -07001242source "arch/arm/Kconfig.debug"
1243
1244source "security/Kconfig"
1245
1246source "crypto/Kconfig"
1247
1248source "lib/Kconfig"