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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
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100181config OPROFILE_ARMV7
182 def_bool y
183 depends on CPU_V7 && !SMP
184 bool
185
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500186endif
187
Hyok S. Choic760fc12006-03-27 15:18:50 +0100188config VECTORS_BASE
189 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900190 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100191 default DRAM_BASE if REMAP_VECTORS_TO_RAM
192 default 0x00000000
193 help
194 The base address of exception vectors.
195
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196source "init/Kconfig"
197
198menu "System Type"
199
200choice
201 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000202 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100204config ARCH_AAEC2000
205 bool "Agilent AAEC-2000 based"
206 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700207 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100208 help
209 This enables support for systems based on the Agilent AAEC-2000
210
211config ARCH_INTEGRATOR
212 bool "ARM Ltd. Integrator family"
213 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700214 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100215 select ICST525
216 help
217 Support for ARM's Integrator platform.
218
219config ARCH_REALVIEW
220 bool "ARM Ltd. RealView family"
221 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700222 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100223 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100224 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100225 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100226 help
227 This enables support for ARM Ltd RealView boards.
228
229config ARCH_VERSATILE
230 bool "ARM Ltd. Versatile family"
231 select ARM_AMBA
232 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700233 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100234 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100235 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100236 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100237 help
238 This enables support for ARM Ltd Versatile board.
239
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100240config ARCH_AT91
241 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800242 select GENERIC_GPIO
David Brownell93686ae2008-07-28 15:46:22 -0700243 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100244 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100245 This enables support for systems based on the Atmel AT91RM9200,
246 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100247
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100249 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100251 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000252 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100253 select ARCH_SPARSEMEM_ENABLE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000254 help
255 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256
257config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100258 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000259 help
260 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262config ARCH_EBSA110
263 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100264 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000265 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266 help
267 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000268 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 Ethernet interface, two PCMCIA sockets, two serial ports and a
270 parallel port.
271
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000272config ARCH_EP93XX
273 bool "EP93xx-based"
274 select ARM_AMBA
275 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100276 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700277 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700278 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000279 help
280 This enables support for the Cirrus EP93xx series of CPUs.
281
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282config ARCH_FOOTBRIDGE
283 bool "FootBridge"
284 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000285 help
286 Support for systems based on the DC21285 companion chip
287 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100289config ARCH_NETX
290 bool "Hilscher NetX based"
291 select ARM_VIC
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000292 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100293 This enables support for systems based on the Hilscher NetX Soc
294
295config ARCH_H720X
296 bool "Hynix HMS720x-based"
297 select ISA_DMA_API
298 help
299 This enables support for systems based on the Hynix HMS720x
300
301config ARCH_IMX
302 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100303 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100304 select GENERIC_TIME
305 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100306 help
307 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308
Russell King3b938be2007-05-12 11:25:44 +0100309config ARCH_IOP13XX
310 bool "IOP13xx-based"
311 depends on MMU
312 select PLAT_IOP
313 select PCI
314 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100315 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100316 help
317 Support for Intel's IOP13XX (XScale) family of processors.
318
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100319config ARCH_IOP32X
320 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100321 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100322 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100323 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100324 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100325 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000326 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100327 Support for Intel's 80219 and IOP32X (XScale) family of
328 processors.
329
330config ARCH_IOP33X
331 bool "IOP33x-based"
332 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100333 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100334 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100335 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100336 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100337 help
338 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339
Russell King3b938be2007-05-12 11:25:44 +0100340config ARCH_IXP23XX
341 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100342 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100343 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100344 help
Russell King3b938be2007-05-12 11:25:44 +0100345 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346
347config ARCH_IXP2000
348 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100349 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100350 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000351 help
352 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353
Russell King3b938be2007-05-12 11:25:44 +0100354config ARCH_IXP4XX
355 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100356 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100357 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100358 select GENERIC_TIME
359 select GENERIC_CLOCKEVENTS
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100360 help
Russell King3b938be2007-05-12 11:25:44 +0100361 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100362
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363config ARCH_L7200
364 bool "LinkUp-L7200"
365 select FIQ
366 help
367 Say Y here if you intend to run this kernel on a LinkUp Systems
368 L7200 Software Development Board which uses an ARM720T processor.
369 Information on this board can be obtained at:
370
371 <http://www.linkupsys.com/>
372
373 If you have any questions or comments about the Linux kernel port
374 to this board, send e-mail to <sjhill@cotw.com>.
375
Saeed Bishara651c74c2008-06-22 22:45:06 +0200376config ARCH_KIRKWOOD
377 bool "Marvell Kirkwood"
378 select PCI
379 select GENERIC_TIME
380 select GENERIC_CLOCKEVENTS
381 select PLAT_ORION
382 help
383 Support for the following Marvell Kirkwood series SoCs:
384 88F6180, 88F6192 and 88F6281.
385
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100386config ARCH_KS8695
387 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100388 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100389 help
390 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
391 System-on-Chip devices.
392
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100393config ARCH_NS9XXX
394 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100395 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100396 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100397 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700398 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100399 help
400 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
401 System.
402
403 <http://www.digi.com/products/microprocessors/index.jsp>
404
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200405config ARCH_LOKI
406 bool "Marvell Loki (88RC8480)"
407 select GENERIC_TIME
408 select GENERIC_CLOCKEVENTS
409 select PLAT_ORION
410 help
411 Support for the Marvell Loki (88RC8480) SoC.
412
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200413config ARCH_MV78XX0
414 bool "Marvell MV78xx0"
415 select PCI
416 select GENERIC_TIME
417 select GENERIC_CLOCKEVENTS
418 select PLAT_ORION
419 help
420 Support for the following Marvell MV78xx0 series SoCs:
421 MV781x0, MV782x0.
422
Quinn Jensen52c543f2007-07-09 22:06:53 +0100423config ARCH_MXC
424 bool "Freescale MXC/iMX-based"
Juergen Beisertd0f349f2008-07-05 10:02:50 +0200425 select GENERIC_TIME
426 select GENERIC_CLOCKEVENTS
Quinn Jensen52c543f2007-07-09 22:06:53 +0100427 select ARCH_MTD_XIP
Juergen Beisert07bd1a62008-07-05 10:02:49 +0200428 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100429 select ARCH_REQUIRE_GPIOLIB
Quinn Jensen52c543f2007-07-09 22:06:53 +0100430 help
431 Support for Freescale MXC/iMX-based family of processors
432
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400433config ARCH_ORION5X
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400434 bool "Marvell Orion"
435 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400436 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400437 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400438 select GENERIC_TIME
439 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400440 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400441 help
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400442 Support for the following Marvell Orion 5x series SoCs:
Lennert Buytenhekd2b2a6b2008-05-31 08:30:40 +0200443 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
444 Orion-2 (5281).
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400445
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100446config ARCH_PNX4008
447 bool "Philips Nexperia PNX4008 Mobile"
David Brownell9483a572008-07-23 21:26:48 -0700448 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100449 help
450 This enables support for Philips PNX4008 mobile platform.
451
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700453 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100454 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500455 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800456 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700457 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700458 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100459 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100460 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000461 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000462 help
eric miao2c8086a2007-09-11 19:13:17 -0700463 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464
465config ARCH_RPC
466 bool "RiscPC"
467 select ARCH_ACORN
468 select FIQ
469 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100470 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100471 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000472 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000473 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100474 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475 help
476 On the Acorn Risc-PC, Linux can support the internal IDE disk and
477 CD-ROM interface, serial and parallel port, and the floppy drive.
478
479config ARCH_SA1100
480 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100481 select ISA
Russell King05944d72006-11-30 20:43:51 +0000482 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500483 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800484 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000485 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100486 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700487 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100488 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700489 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000490 help
491 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492
493config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100494 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800495 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700496 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497 help
498 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
499 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000500 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501
502config ARCH_SHARK
503 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100504 select ISA
505 select ISA_DMA
506 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000507 help
508 Support for the StrongARM based Digital DNARD machine, also known
509 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510
511config ARCH_LH7A40X
512 bool "Sharp LH7A40X"
513 help
514 Say Y here for systems based on one of the Sharp LH7A40X
515 System on a Chip processors. These CPUs include an ARM922T
516 core with a wide array of integrated devices for
517 hand-held and low-power applications.
518
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100519config ARCH_DAVINCI
520 bool "TI DaVinci"
521 select GENERIC_TIME
522 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100523 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700524 select HAVE_CLK
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100525 help
526 Support for TI's DaVinci platform.
527
Russell King3b938be2007-05-12 11:25:44 +0100528config ARCH_OMAP
529 bool "TI OMAP"
530 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700531 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700532 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100533 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700534 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100535 help
536 Support for TI's OMAP platform (OMAP1 and OMAP2).
537
Brian Swetland30421022007-11-26 04:11:43 -0800538config ARCH_MSM7X00A
539 bool "Qualcomm MSM7X00A"
540 select GENERIC_TIME
541 select GENERIC_CLOCKEVENTS
542 help
543 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
544 apps processor of the MSM7X00A and depends on a shared memory
545 interface to the ARM9 modem processor which runs the baseband stack
546 and controls some vital subsystems (clock and power control, etc).
547 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
548
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549endchoice
550
551source "arch/arm/mach-clps711x/Kconfig"
552
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000553source "arch/arm/mach-ep93xx/Kconfig"
554
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555source "arch/arm/mach-footbridge/Kconfig"
556
557source "arch/arm/mach-integrator/Kconfig"
558
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100559source "arch/arm/mach-iop32x/Kconfig"
560
561source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562
Dan Williams285f5fa2006-12-07 02:59:39 +0100563source "arch/arm/mach-iop13xx/Kconfig"
564
Linus Torvalds1da177e2005-04-16 15:20:36 -0700565source "arch/arm/mach-ixp4xx/Kconfig"
566
567source "arch/arm/mach-ixp2000/Kconfig"
568
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100569source "arch/arm/mach-ixp23xx/Kconfig"
570
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200571source "arch/arm/mach-loki/Kconfig"
572
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200573source "arch/arm/mach-mv78xx0/Kconfig"
574
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575source "arch/arm/mach-pxa/Kconfig"
576
577source "arch/arm/mach-sa1100/Kconfig"
578
Tony Lindgrend48af152005-07-10 19:58:17 +0100579source "arch/arm/plat-omap/Kconfig"
580
581source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700582
Tony Lindgren1dbae812005-11-10 14:26:51 +0000583source "arch/arm/mach-omap2/Kconfig"
584
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400585source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400586
Saeed Bishara651c74c2008-06-22 22:45:06 +0200587source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588
Ben Dooksa21765a2007-02-11 18:31:01 +0100589source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100590source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100591
592if ARCH_S3C2410
593source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100595source "arch/arm/mach-s3c2412/Kconfig"
596source "arch/arm/mach-s3c2440/Kconfig"
597source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100598source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100599endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600
601source "arch/arm/mach-lh7a40x/Kconfig"
602
603source "arch/arm/mach-imx/Kconfig"
604
605source "arch/arm/mach-h720x/Kconfig"
606
607source "arch/arm/mach-versatile/Kconfig"
608
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100609source "arch/arm/mach-aaec2000/Kconfig"
610
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000611source "arch/arm/mach-realview/Kconfig"
612
Andrew Victor9d041262007-02-05 11:42:07 +0100613source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000614
Quinn Jensen52c543f2007-07-09 22:06:53 +0100615source "arch/arm/plat-mxc/Kconfig"
616
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100617source "arch/arm/mach-netx/Kconfig"
618
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100619source "arch/arm/mach-ns9xxx/Kconfig"
620
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100621source "arch/arm/mach-davinci/Kconfig"
622
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100623source "arch/arm/mach-ks8695/Kconfig"
624
Brian Swetland9e73c842007-11-26 04:12:13 -0800625source "arch/arm/mach-msm/Kconfig"
626
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627# Definitions to make life easier
628config ARCH_ACORN
629 bool
630
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100631config PLAT_IOP
632 bool
633
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400634config PLAT_ORION
635 bool
636
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637source arch/arm/mm/Kconfig
638
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100639config IWMMXT
640 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100641 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700642 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100643 help
644 Enable support for iWMMXt context switching at run time if
645 running on a CPU that supports it.
646
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
648config XSCALE_PMU
649 bool
650 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
651 default y
652
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100653if !MMU
654source "arch/arm/Kconfig-nommu"
655endif
656
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657endmenu
658
659source "arch/arm/common/Kconfig"
660
661config FORCE_MAX_ZONEORDER
662 int
663 depends on SA1111
664 default "9"
665
666menu "Bus support"
667
668config ARM_AMBA
669 bool
670
671config ISA
672 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673 help
674 Find out whether you have ISA slots on your motherboard. ISA is the
675 name of a bus system, i.e. the way the CPU talks to the other stuff
676 inside your box. Other bus systems are PCI, EISA, MicroChannel
677 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
678 newer boards don't support it. If you have ISA, say Y, otherwise N.
679
Russell King065909b2006-01-04 15:44:16 +0000680# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681config ISA_DMA
682 bool
Russell King065909b2006-01-04 15:44:16 +0000683 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684
Russell King065909b2006-01-04 15:44:16 +0000685# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100686config ISA_DMA_API
687 bool
Al Viro5cae8412005-05-04 05:39:22 +0100688
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100690 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691 help
692 Find out whether you have a PCI motherboard. PCI is the name of a
693 bus system, i.e. the way the CPU talks to the other stuff inside
694 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
695 VESA. If you have PCI, say Y, otherwise N.
696
Matthew Wilcox36e23592007-07-10 10:54:40 -0600697config PCI_SYSCALL
698 def_bool PCI
699
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700# Select the host bridge type
701config PCI_HOST_VIA82C505
702 bool
703 depends on PCI && ARCH_SHARK
704 default y
705
Mike Rapoporta0113a92007-11-25 08:55:34 +0100706config PCI_HOST_ITE8152
707 bool
708 depends on PCI && MACH_ARMCORE
709 default y
710 select DMABOUNCE
711
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712source "drivers/pci/Kconfig"
713
714source "drivers/pcmcia/Kconfig"
715
716endmenu
717
718menu "Kernel Features"
719
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100720source "kernel/time/Kconfig"
721
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722config SMP
723 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100724 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Jens Axboef6dd9fa2008-06-10 20:48:30 +0200725 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726 help
727 This enables support for systems with more than one CPU. If you have
728 a system with only one CPU, like most personal computers, say N. If
729 you have a system with more than one CPU, say Y.
730
731 If you say N here, the kernel will run on single and multiprocessor
732 machines, but will use only one CPU of a multiprocessor machine. If
733 you say Y here, the kernel will run on many, but not all, single
734 processor machines. On a single processor machine, the kernel will
735 run faster if you say N here.
736
Adrian Bunk03502fa2008-02-03 15:50:21 +0200737 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
739 <http://www.linuxdoc.org/docs.html#howto>.
740
741 If you don't know what to do here, say N.
742
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100743choice
744 prompt "Memory split"
745 default VMSPLIT_3G
746 help
747 Select the desired split between kernel and user memory.
748
749 If you are not absolutely sure what you are doing, leave this
750 option alone!
751
752 config VMSPLIT_3G
753 bool "3G/1G user/kernel split"
754 config VMSPLIT_2G
755 bool "2G/2G user/kernel split"
756 config VMSPLIT_1G
757 bool "1G/3G user/kernel split"
758endchoice
759
760config PAGE_OFFSET
761 hex
762 default 0x40000000 if VMSPLIT_1G
763 default 0x80000000 if VMSPLIT_2G
764 default 0xC0000000
765
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766config NR_CPUS
767 int "Maximum number of CPUs (2-32)"
768 range 2 32
769 depends on SMP
770 default "4"
771
Russell Kinga054a812005-11-02 22:24:33 +0000772config HOTPLUG_CPU
773 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
774 depends on SMP && HOTPLUG && EXPERIMENTAL
775 help
776 Say Y here to experiment with turning CPUs off and on. CPUs
777 can be controlled through /sys/devices/system/cpu.
778
Russell King37ee16a2005-11-08 19:08:05 +0000779config LOCAL_TIMERS
780 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100781 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000782 default y
783 help
784 Enable support for local timers on SMP platforms, rather then the
785 legacy IPI broadcast method. Local timers allows the system
786 accounting to be spread across the timer interval, preventing a
787 "thundering herd" at every timer tick.
788
Linus Torvalds1da177e2005-04-16 15:20:36 -0700789config PREEMPT
790 bool "Preemptible Kernel (EXPERIMENTAL)"
791 depends on EXPERIMENTAL
792 help
793 This option reduces the latency of the kernel when reacting to
794 real-time or interactive events by allowing a low priority process to
795 be preempted even if it is in kernel mode executing a system call.
796 This allows applications to run more reliably even when the system is
797 under load.
798
799 Say Y here if you are building a kernel for a desktop, embedded
800 or real-time system. Say N if you are unsure.
801
Russell Kingf8065812006-03-02 22:41:59 +0000802config HZ
803 int
804 default 128 if ARCH_L7200
805 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000806 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100807 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000808 default 100
809
Nicolas Pitre704bdda02006-01-14 16:33:50 +0000810config AEABI
811 bool "Use the ARM EABI to compile the kernel"
812 help
813 This option allows for the kernel to be compiled using the latest
814 ARM ABI (aka EABI). This is only useful if you are using a user
815 space environment that is also compiled with EABI.
816
817 Since there are major incompatibilities between the legacy ABI and
818 EABI, especially with regard to structure member alignment, this
819 option also changes the kernel syscall calling convention to
820 disambiguate both ABIs and allow for backward compatibility support
821 (selected with CONFIG_OABI_COMPAT).
822
823 To use this you need GCC version 4.0.0 or later.
824
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000825config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000826 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000827 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000828 default y
829 help
830 This option preserves the old syscall interface along with the
831 new (ARM EABI) one. It also provides a compatibility layer to
832 intercept syscalls that have structure arguments which layout
833 in memory differs between the legacy ABI and the new ARM EABI
834 (only for non "thumb" binaries). This option adds a tiny
835 overhead to all syscalls and produces a slightly larger kernel.
836 If you know you'll be using only pure EABI user space then you
837 can say N here. If this option is not selected and you attempt
838 to execute a legacy ABI binary then the result will be
839 UNPREDICTABLE (in fact it can be predicted that it won't work
840 at all). If in doubt say Y.
841
Russell King07a2f732008-10-01 21:39:58 +0100842# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -0700843config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100845 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846 help
847 Say Y to support efficient handling of discontiguous physical memory,
848 for architectures which are either NUMA (Non-Uniform Memory Access)
849 or have huge holes in the physical address space for other reasons.
850 See <file:Documentation/vm/numa> for more.
851
Russell King05944d72006-11-30 20:43:51 +0000852config ARCH_SPARSEMEM_ENABLE
853 bool
854
Russell King07a2f732008-10-01 21:39:58 +0100855config ARCH_SPARSEMEM_DEFAULT
856 def_bool ARCH_SPARSEMEM_ENABLE
857
Russell King05944d72006-11-30 20:43:51 +0000858config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +0100859 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +0000860
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700861config NODES_SHIFT
862 int
863 default "4" if ARCH_LH7A40X
864 default "2"
865 depends on NEED_MULTIPLE_NODES
866
Dave Hansen3f22ab22005-06-23 00:07:43 -0700867source "mm/Kconfig"
868
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869config LEDS
870 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +0100871 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700872 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
873 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
874 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000875 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100876 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400877 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878 help
879 If you say Y here, the LEDs on your machine will be used
880 to provide useful information about your current system status.
881
882 If you are compiling a kernel for a NetWinder or EBSA-285, you will
883 be able to select which LEDs are active using the options below. If
884 you are compiling a kernel for the EBSA-110 or the LART however, the
885 red LED will simply flash regularly to indicate that the system is
886 still functional. It is safe to say Y here if you have a CATS
887 system, but the driver will do nothing.
888
889config LEDS_TIMER
890 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700891 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
892 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100894 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895 default y if ARCH_EBSA110
896 help
897 If you say Y here, one of the system LEDs (the green one on the
898 NetWinder, the amber one on the EBSA285, or the red one on the LART)
899 will flash regularly to indicate that the system is still
900 operational. This is mainly useful to kernel hackers who are
901 debugging unstable kernels.
902
903 The LART uses the same LED for both Timer LED and CPU usage LED
904 functions. You may choose to use both, but the Timer LED function
905 will overrule the CPU usage LED.
906
907config LEDS_CPU
908 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700909 !ARCH_OMAP) \
910 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
911 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912 depends on LEDS
913 help
914 If you say Y here, the red LED will be used to give a good real
915 time indication of CPU usage, by lighting whenever the idle task
916 is not currently executing.
917
918 The LART uses the same LED for both Timer LED and CPU usage LED
919 functions. You may choose to use both, but the Timer LED function
920 will overrule the CPU usage LED.
921
922config ALIGNMENT_TRAP
923 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900924 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925 default y if !ARCH_EBSA110
926 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200927 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
929 address divisible by 4. On 32-bit ARM processors, these non-aligned
930 fetch/store instructions will be emulated in software if you say
931 here, which has a severe performance impact. This is necessary for
932 correct operation of some network protocols. With an IP-only
933 configuration it is safe to say N, otherwise say Y.
934
935endmenu
936
937menu "Boot options"
938
939# Compressed boot loader in ROM. Yes, we really want to ask about
940# TEXT and BSS so we preserve their values in the config files.
941config ZBOOT_ROM_TEXT
942 hex "Compressed ROM boot loader base address"
943 default "0"
944 help
945 The physical address at which the ROM-able zImage is to be
946 placed in the target. Platforms which normally make use of
947 ROM-able zImage formats normally set this to a suitable
948 value in their defconfig file.
949
950 If ZBOOT_ROM is not enabled, this has no effect.
951
952config ZBOOT_ROM_BSS
953 hex "Compressed ROM boot loader BSS address"
954 default "0"
955 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100956 The base address of an area of read/write memory in the target
957 for the ROM-able zImage which must be available while the
958 decompressor is running. It must be large enough to hold the
959 entire decompressed kernel plus an additional 128 KiB.
960 Platforms which normally make use of ROM-able zImage formats
961 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962
963 If ZBOOT_ROM is not enabled, this has no effect.
964
965config ZBOOT_ROM
966 bool "Compressed boot loader in ROM/flash"
967 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
968 help
969 Say Y here if you intend to execute your compressed kernel image
970 (zImage) directly from ROM or flash. If unsure, say N.
971
972config CMDLINE
973 string "Default kernel command string"
974 default ""
975 help
976 On some architectures (EBSA110 and CATS), there is currently no way
977 for the boot loader to pass arguments to the kernel. For these
978 architectures, you should supply some command-line options at build
979 time by entering them here. As a minimum, you should specify the
980 memory size and the root device (e.g., mem=64M root=/dev/nfs).
981
982config XIP_KERNEL
983 bool "Kernel Execute-In-Place from ROM"
984 depends on !ZBOOT_ROM
985 help
986 Execute-In-Place allows the kernel to run from non-volatile storage
987 directly addressable by the CPU, such as NOR flash. This saves RAM
988 space since the text section of the kernel is not loaded from flash
989 to RAM. Read-write sections, such as the data section and stack,
990 are still copied to RAM. The XIP kernel is not compressed since
991 it has to run directly from flash, so it will take more space to
992 store it. The flash address used to link the kernel object files,
993 and for storing it, is configuration dependent. Therefore, if you
994 say Y here, you must know the proper physical address where to
995 store the kernel image depending on your own flash memory usage.
996
997 Also note that the make target becomes "make xipImage" rather than
998 "make zImage" or "make Image". The final kernel binary to put in
999 ROM memory will be arch/arm/boot/xipImage.
1000
1001 If unsure, say N.
1002
1003config XIP_PHYS_ADDR
1004 hex "XIP Kernel Physical Location"
1005 depends on XIP_KERNEL
1006 default "0x00080000"
1007 help
1008 This is the physical address in your flash memory the kernel will
1009 be linked for and stored to. This address is dependent on your
1010 own flash usage.
1011
Richard Purdiec587e4a2007-02-06 21:29:00 +01001012config KEXEC
1013 bool "Kexec system call (EXPERIMENTAL)"
1014 depends on EXPERIMENTAL
1015 help
1016 kexec is a system call that implements the ability to shutdown your
1017 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001018 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001019 you can start any kernel with it, not just Linux.
1020
1021 It is an ongoing process to be certain the hardware in a machine
1022 is properly shutdown, so do not be surprised if this code does not
1023 initially work for you. It may help to enable device hotplugging
1024 support.
1025
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001026config ATAGS_PROC
1027 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001028 depends on KEXEC
1029 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001030 help
1031 Should the atags used to boot the kernel be exported in an "atags"
1032 file in procfs. Useful with kexec.
1033
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034endmenu
1035
Russell Kingac9d7ef2008-08-18 17:26:00 +01001036menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037
Russell Kingac9d7ef2008-08-18 17:26:00 +01001038if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039
1040source "drivers/cpufreq/Kconfig"
1041
1042config CPU_FREQ_SA1100
1043 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +01001044 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 -07001045 default y
1046
1047config CPU_FREQ_SA1110
1048 bool
1049 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1050 default y
1051
1052config CPU_FREQ_INTEGRATOR
1053 tristate "CPUfreq driver for ARM Integrator CPUs"
1054 depends on ARCH_INTEGRATOR && CPU_FREQ
1055 default y
1056 help
1057 This enables the CPUfreq driver for ARM Integrator CPUs.
1058
1059 For details, take a look at <file:Documentation/cpu-freq>.
1060
1061 If in doubt, say Y.
1062
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +01001063config CPU_FREQ_IMX
1064 tristate "CPUfreq driver for i.MX CPUs"
1065 depends on ARCH_IMX && CPU_FREQ
1066 default n
1067 help
1068 This enables the CPUfreq driver for i.MX CPUs.
1069
1070 If in doubt, say N.
1071
Russell King9e2697f2007-12-14 13:30:14 +00001072config CPU_FREQ_PXA
1073 bool
1074 depends on CPU_FREQ && ARCH_PXA && PXA25x
1075 default y
1076 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1077
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078endif
1079
Russell Kingac9d7ef2008-08-18 17:26:00 +01001080source "drivers/cpuidle/Kconfig"
1081
1082endmenu
1083
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084menu "Floating point emulation"
1085
1086comment "At least one emulation must be selected"
1087
1088config FPE_NWFPE
1089 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001090 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091 ---help---
1092 Say Y to include the NWFPE floating point emulator in the kernel.
1093 This is necessary to run most binaries. Linux does not currently
1094 support floating point hardware so you need to say Y here even if
1095 your machine has an FPA or floating point co-processor podule.
1096
1097 You may say N here if you are going to load the Acorn FPEmulator
1098 early in the bootup.
1099
1100config FPE_NWFPE_XP
1101 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001102 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001103 help
1104 Say Y to include 80-bit support in the kernel floating-point
1105 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1106 Note that gcc does not generate 80-bit operations by default,
1107 so in most cases this option only enlarges the size of the
1108 floating point emulator without any good reason.
1109
1110 You almost surely want to say N here.
1111
1112config FPE_FASTFPE
1113 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001114 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001115 ---help---
1116 Say Y here to include the FAST floating point emulator in the kernel.
1117 This is an experimental much faster emulator which now also has full
1118 precision for the mantissa. It does not support any exceptions.
1119 It is very simple, and approximately 3-6 times faster than NWFPE.
1120
1121 It should be sufficient for most programs. It may be not suitable
1122 for scientific calculations, but you have to check this for yourself.
1123 If you do not feel you need a faster FP emulation you should better
1124 choose NWFPE.
1125
1126config VFP
1127 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001128 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129 help
1130 Say Y to include VFP support code in the kernel. This is needed
1131 if your hardware includes a VFP unit.
1132
1133 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1134 release notes and additional status information.
1135
1136 Say N if your target does not have VFP hardware.
1137
Catalin Marinas25ebee02007-09-25 15:22:24 +01001138config VFPv3
1139 bool
1140 depends on VFP
1141 default y if CPU_V7
1142
Catalin Marinasb5872db2008-01-10 19:16:17 +01001143config NEON
1144 bool "Advanced SIMD (NEON) Extension support"
1145 depends on VFPv3 && CPU_V7
1146 help
1147 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1148 Extension.
1149
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150endmenu
1151
1152menu "Userspace binary formats"
1153
1154source "fs/Kconfig.binfmt"
1155
1156config ARTHUR
1157 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001158 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001159 help
1160 Say Y here to include the kernel code necessary if you want to run
1161 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1162 experimental; if this sounds frightening, say N and sleep in peace.
1163 You can also say M here to compile this support as a module (which
1164 will be called arthur).
1165
1166endmenu
1167
1168menu "Power management options"
1169
Russell Kingeceab4a2005-11-15 11:31:41 +00001170source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171
Johannes Bergf4cb5702007-12-08 02:14:00 +01001172config ARCH_SUSPEND_POSSIBLE
1173 def_bool y
1174
Linus Torvalds1da177e2005-04-16 15:20:36 -07001175endmenu
1176
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001177source "net/Kconfig"
1178
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179menu "Device Drivers"
1180
1181source "drivers/base/Kconfig"
1182
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001183source "drivers/connector/Kconfig"
1184
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001185if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186source "drivers/mtd/Kconfig"
1187endif
1188
1189source "drivers/parport/Kconfig"
1190
1191source "drivers/pnp/Kconfig"
1192
1193source "drivers/block/Kconfig"
1194
Russell King58273e52007-10-12 22:24:09 +01001195# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1196
1197source "drivers/misc/Kconfig"
1198
Linus Torvalds1da177e2005-04-16 15:20:36 -07001199source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001200
1201source "drivers/scsi/Kconfig"
1202
Martin Michlmayreb370f02006-11-17 00:14:35 +01001203source "drivers/ata/Kconfig"
1204
Linus Torvalds1da177e2005-04-16 15:20:36 -07001205source "drivers/md/Kconfig"
1206
1207source "drivers/message/fusion/Kconfig"
1208
1209source "drivers/ieee1394/Kconfig"
1210
1211source "drivers/message/i2o/Kconfig"
1212
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001213source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001214
1215source "drivers/isdn/Kconfig"
1216
1217# input before char - char/joystick depends on it. As does USB.
1218
1219source "drivers/input/Kconfig"
1220
1221source "drivers/char/Kconfig"
1222
1223source "drivers/i2c/Kconfig"
1224
David Brownell8ae12a02006-01-08 13:34:19 -08001225source "drivers/spi/Kconfig"
1226
David Brownella9c5fff2008-02-04 22:28:17 -08001227source "drivers/gpio/Kconfig"
1228
Alessandro Zummo04916c02006-03-10 22:30:01 +00001229source "drivers/w1/Kconfig"
1230
Russell King58273e52007-10-12 22:24:09 +01001231source "drivers/power/Kconfig"
1232
Jean Delvaread2f9312005-07-02 18:15:49 +02001233source "drivers/hwmon/Kconfig"
1234
Russell Kingac9d7ef2008-08-18 17:26:00 +01001235source "drivers/thermal/Kconfig"
1236
Russell King70dfa3f2007-11-07 14:13:35 +00001237source "drivers/watchdog/Kconfig"
1238
Russell King58273e52007-10-12 22:24:09 +01001239source "drivers/ssb/Kconfig"
1240
Linus Torvalds1da177e2005-04-16 15:20:36 -07001241#source "drivers/l3/Kconfig"
1242
Russell Kinga4e137a2005-08-18 10:06:59 +01001243source "drivers/mfd/Kconfig"
1244
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245source "drivers/media/Kconfig"
1246
1247source "drivers/video/Kconfig"
1248
1249source "sound/Kconfig"
1250
Sascha Hauerc2dade52006-12-12 10:32:42 +01001251source "drivers/hid/Kconfig"
1252
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253source "drivers/usb/Kconfig"
1254
1255source "drivers/mmc/Kconfig"
1256
Russell Kingac9d7ef2008-08-18 17:26:00 +01001257source "drivers/memstick/Kconfig"
1258
1259source "drivers/accessibility/Kconfig"
1260
Russell King58273e52007-10-12 22:24:09 +01001261source "drivers/leds/Kconfig"
1262
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001263source "drivers/rtc/Kconfig"
1264
Dan Williams58168152007-01-02 11:10:43 -07001265source "drivers/dma/Kconfig"
1266
Dan Williamsabf07b12008-01-18 23:26:10 +01001267source "drivers/dca/Kconfig"
1268
Russell Kingac9d7ef2008-08-18 17:26:00 +01001269source "drivers/auxdisplay/Kconfig"
1270
Liam Girdwoodba7e4762008-04-30 17:13:42 +01001271source "drivers/regulator/Kconfig"
1272
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001273source "drivers/uio/Kconfig"
1274
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275endmenu
1276
1277source "fs/Kconfig"
1278
Linus Torvalds1da177e2005-04-16 15:20:36 -07001279source "arch/arm/Kconfig.debug"
1280
1281source "security/Kconfig"
1282
1283source "crypto/Kconfig"
1284
1285source "lib/Kconfig"