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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config ARM
9 bool
10 default y
Adrian Bunk2064c942008-04-28 23:44:43 +020011 select HAVE_IDE
Alessandro Zummo12b824f2006-03-27 01:16:35 -080012 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000013 select SYS_SUPPORTS_APM_EMULATION
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050014 select HAVE_OPROFILE
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050015 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080016 select HAVE_KRETPROBES if (HAVE_KPROBES)
Abhishek Sagar014c2572008-05-31 14:23:50 +053017 select HAVE_FTRACE if (!XIP_KERNEL)
18 select HAVE_DYNAMIC_FTRACE if (HAVE_FTRACE)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Linus Torvalds1da177e2005-04-16 15:20:36 -070020 help
21 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000022 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070023 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000024 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070025 Europe. There is an ARM Linux project with a web page at
26 <http://www.arm.linux.org.uk/>.
27
Russell King1a189b92008-04-13 21:41:55 +010028config HAVE_PWM
29 bool
30
Ralf Baechle75e71532007-02-09 17:08:58 +000031config SYS_SUPPORTS_APM_EMULATION
32 bool
33
David Brownell0a938b92007-03-05 00:30:18 -080034config GENERIC_GPIO
35 bool
36 default n
37
Kevin Hilman746140c2006-09-22 00:16:30 +010038config GENERIC_TIME
39 bool
40 default n
41
Kevin Hilman0567a0c2007-03-13 20:29:24 +010042config GENERIC_CLOCKEVENTS
43 bool
44 default n
45
Catalin Marinasa8655e82008-02-04 17:30:57 +010046config GENERIC_CLOCKEVENTS_BROADCAST
47 bool
48 depends on GENERIC_CLOCKEVENTS
49 default y if SMP && !LOCAL_TIMERS
50
Linus Torvalds1da177e2005-04-16 15:20:36 -070051config MMU
52 bool
53 default y
54
Al Viro5ea81762007-02-11 15:41:31 +000055config NO_IOPORT
56 bool
57 default n
58
Linus Torvalds1da177e2005-04-16 15:20:36 -070059config EISA
60 bool
61 ---help---
62 The Extended Industry Standard Architecture (EISA) bus was
63 developed as an open alternative to the IBM MicroChannel bus.
64
65 The EISA bus provided some of the features of the IBM MicroChannel
66 bus while maintaining backward compatibility with cards made for
67 the older ISA bus. The EISA bus saw limited use between 1988 and
68 1995 when it was made obsolete by the PCI bus.
69
70 Say Y here if you are building a kernel for an EISA-based machine.
71
72 Otherwise, say N.
73
74config SBUS
75 bool
76
77config MCA
78 bool
79 help
80 MicroChannel Architecture is found in some IBM PS/2 machines and
81 laptops. It is a bus system similar to PCI or ISA. See
82 <file:Documentation/mca.txt> (and especially the web page given
83 there) before attempting to build an MCA bus kernel.
84
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010085config GENERIC_HARDIRQS
86 bool
87 default y
88
Russell Kingf16fb1e2007-04-28 09:59:37 +010089config STACKTRACE_SUPPORT
90 bool
91 default y
92
Nicolas Pitref76e9152008-04-24 01:31:46 -040093config HAVE_LATENCYTOP_SUPPORT
94 bool
95 depends on !SMP
96 default y
97
Russell Kingf16fb1e2007-04-28 09:59:37 +010098config LOCKDEP_SUPPORT
99 bool
100 default y
101
Russell King7ad1bcb2006-08-27 12:07:02 +0100102config TRACE_IRQFLAGS_SUPPORT
103 bool
104 default y
105
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100106config HARDIRQS_SW_RESEND
107 bool
108 default y
109
110config GENERIC_IRQ_PROBE
111 bool
112 default y
113
Nick Piggin95c354f2008-01-30 13:31:20 +0100114config GENERIC_LOCKBREAK
115 bool
116 default y
117 depends on SMP && PREEMPT
118
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119config RWSEM_GENERIC_SPINLOCK
120 bool
121 default y
122
123config RWSEM_XCHGADD_ALGORITHM
124 bool
125
David Howellsf0d1b0b2006-12-08 02:37:49 -0800126config ARCH_HAS_ILOG2_U32
127 bool
128 default n
129
130config ARCH_HAS_ILOG2_U64
131 bool
132 default n
133
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800134config GENERIC_HWEIGHT
135 bool
136 default y
137
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138config GENERIC_CALIBRATE_DELAY
139 bool
140 default y
141
David Howellsb0b933c2008-02-08 04:19:27 -0800142config ARCH_SUPPORTS_AOUT
143 def_bool y
144
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100145config ARCH_MAY_HAVE_PC_FDC
146 bool
147
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800148config ZONE_DMA
149 bool
150 default y
151
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152config GENERIC_ISA_DMA
153 bool
154
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155config FIQ
156 bool
157
Al Viro034d2f52005-12-19 16:27:59 -0500158config ARCH_MTD_XIP
159 bool
160
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100161config GENERIC_HARDIRQS_NO__DO_IRQ
162 bool
163 def_bool y
164
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500165if OPROFILE
166
167config OPROFILE_ARMV6
168 def_bool y
169 depends on CPU_V6 && !SMP
170 select OPROFILE_ARM11_CORE
171
172config OPROFILE_MPCORE
173 def_bool y
174 depends on CPU_V6 && SMP
175 select OPROFILE_ARM11_CORE
176
177config OPROFILE_ARM11_CORE
178 bool
179
180endif
181
Hyok S. Choic760fc12006-03-27 15:18:50 +0100182config VECTORS_BASE
183 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900184 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100185 default DRAM_BASE if REMAP_VECTORS_TO_RAM
186 default 0x00000000
187 help
188 The base address of exception vectors.
189
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190source "init/Kconfig"
191
192menu "System Type"
193
194choice
195 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000196 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100198config ARCH_AAEC2000
199 bool "Agilent AAEC-2000 based"
200 select ARM_AMBA
201 help
202 This enables support for systems based on the Agilent AAEC-2000
203
204config ARCH_INTEGRATOR
205 bool "ARM Ltd. Integrator family"
206 select ARM_AMBA
207 select ICST525
208 help
209 Support for ARM's Integrator platform.
210
211config ARCH_REALVIEW
212 bool "ARM Ltd. RealView family"
213 select ARM_AMBA
214 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100215 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100216 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100217 help
218 This enables support for ARM Ltd RealView boards.
219
220config ARCH_VERSATILE
221 bool "ARM Ltd. Versatile family"
222 select ARM_AMBA
223 select ARM_VIC
224 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100225 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100226 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100227 help
228 This enables support for ARM Ltd Versatile board.
229
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100230config ARCH_AT91
231 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800232 select GENERIC_GPIO
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100233 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100234 This enables support for systems based on the Atmel AT91RM9200,
235 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100236
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100238 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100240 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000241 select NO_IOPORT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000242 help
243 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244
245config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100246 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000247 help
248 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250config ARCH_EBSA110
251 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100252 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000253 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 help
255 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000256 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257 Ethernet interface, two PCMCIA sockets, two serial ports and a
258 parallel port.
259
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000260config ARCH_EP93XX
261 bool "EP93xx-based"
262 select ARM_AMBA
263 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100264 select GENERIC_GPIO
Ryan Mallonb6850042008-04-16 02:56:35 +0100265 select HAVE_GPIO_LIB
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000266 help
267 This enables support for the Cirrus EP93xx series of CPUs.
268
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269config ARCH_FOOTBRIDGE
270 bool "FootBridge"
271 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000272 help
273 Support for systems based on the DC21285 companion chip
274 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100276config ARCH_NETX
277 bool "Hilscher NetX based"
278 select ARM_VIC
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000279 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100280 This enables support for systems based on the Hilscher NetX Soc
281
282config ARCH_H720X
283 bool "Hynix HMS720x-based"
284 select ISA_DMA_API
285 help
286 This enables support for systems based on the Hynix HMS720x
287
288config ARCH_IMX
289 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100290 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100291 select GENERIC_TIME
292 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100293 help
294 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295
Russell King3b938be2007-05-12 11:25:44 +0100296config ARCH_IOP13XX
297 bool "IOP13xx-based"
298 depends on MMU
299 select PLAT_IOP
300 select PCI
301 select ARCH_SUPPORTS_MSI
302 help
303 Support for Intel's IOP13XX (XScale) family of processors.
304
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100305config ARCH_IOP32X
306 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100307 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100308 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100309 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100310 select GENERIC_GPIO
311 select HAVE_GPIO_LIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000312 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100313 Support for Intel's 80219 and IOP32X (XScale) family of
314 processors.
315
316config ARCH_IOP33X
317 bool "IOP33x-based"
318 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100319 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100320 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100321 select GENERIC_GPIO
322 select HAVE_GPIO_LIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100323 help
324 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325
Russell King3b938be2007-05-12 11:25:44 +0100326config ARCH_IXP23XX
327 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100328 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100329 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100330 help
Russell King3b938be2007-05-12 11:25:44 +0100331 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332
333config ARCH_IXP2000
334 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100335 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100336 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000337 help
338 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339
Russell King3b938be2007-05-12 11:25:44 +0100340config ARCH_IXP4XX
341 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100342 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100343 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100344 select GENERIC_TIME
345 select GENERIC_CLOCKEVENTS
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100346 help
Russell King3b938be2007-05-12 11:25:44 +0100347 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100348
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349config ARCH_L7200
350 bool "LinkUp-L7200"
351 select FIQ
352 help
353 Say Y here if you intend to run this kernel on a LinkUp Systems
354 L7200 Software Development Board which uses an ARM720T processor.
355 Information on this board can be obtained at:
356
357 <http://www.linkupsys.com/>
358
359 If you have any questions or comments about the Linux kernel port
360 to this board, send e-mail to <sjhill@cotw.com>.
361
Saeed Bishara651c74c2008-06-22 22:45:06 +0200362config ARCH_KIRKWOOD
363 bool "Marvell Kirkwood"
364 select PCI
365 select GENERIC_TIME
366 select GENERIC_CLOCKEVENTS
367 select PLAT_ORION
368 help
369 Support for the following Marvell Kirkwood series SoCs:
370 88F6180, 88F6192 and 88F6281.
371
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100372config ARCH_KS8695
373 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100374 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100375 help
376 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
377 System-on-Chip devices.
378
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100379config ARCH_NS9XXX
380 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100381 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100382 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100383 select GENERIC_CLOCKEVENTS
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100384 help
385 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
386 System.
387
388 <http://www.digi.com/products/microprocessors/index.jsp>
389
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200390config ARCH_LOKI
391 bool "Marvell Loki (88RC8480)"
392 select GENERIC_TIME
393 select GENERIC_CLOCKEVENTS
394 select PLAT_ORION
395 help
396 Support for the Marvell Loki (88RC8480) SoC.
397
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200398config ARCH_MV78XX0
399 bool "Marvell MV78xx0"
400 select PCI
401 select GENERIC_TIME
402 select GENERIC_CLOCKEVENTS
403 select PLAT_ORION
404 help
405 Support for the following Marvell MV78xx0 series SoCs:
406 MV781x0, MV782x0.
407
Quinn Jensen52c543f2007-07-09 22:06:53 +0100408config ARCH_MXC
409 bool "Freescale MXC/iMX-based"
Juergen Beisertd0f349f2008-07-05 10:02:50 +0200410 select GENERIC_TIME
411 select GENERIC_CLOCKEVENTS
Quinn Jensen52c543f2007-07-09 22:06:53 +0100412 select ARCH_MTD_XIP
Juergen Beisert07bd1a62008-07-05 10:02:49 +0200413 select GENERIC_GPIO
414 select HAVE_GPIO_LIB
Quinn Jensen52c543f2007-07-09 22:06:53 +0100415 help
416 Support for Freescale MXC/iMX-based family of processors
417
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400418config ARCH_ORION5X
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400419 bool "Marvell Orion"
420 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400421 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400422 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400423 select GENERIC_TIME
424 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400425 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400426 help
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400427 Support for the following Marvell Orion 5x series SoCs:
Lennert Buytenhekd2b2a6b2008-05-31 08:30:40 +0200428 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
429 Orion-2 (5281).
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400430
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100431config ARCH_PNX4008
432 bool "Philips Nexperia PNX4008 Mobile"
433 help
434 This enables support for Philips PNX4008 mobile platform.
435
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700437 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100438 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500439 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800440 select GENERIC_GPIO
Philipp Zabel1c44f5f2008-02-04 22:28:22 -0800441 select HAVE_GPIO_LIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100442 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100443 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000444 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000445 help
eric miao2c8086a2007-09-11 19:13:17 -0700446 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447
448config ARCH_RPC
449 bool "RiscPC"
450 select ARCH_ACORN
451 select FIQ
452 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100453 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100454 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000455 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000456 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457 help
458 On the Acorn Risc-PC, Linux can support the internal IDE disk and
459 CD-ROM interface, serial and parallel port, and the floppy drive.
460
461config ARCH_SA1100
462 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100463 select ISA
Russell King3cd9e192005-06-25 19:29:34 +0100464 select ARCH_DISCONTIGMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +0000465 select ARCH_SPARSEMEM_ENABLE
466 select ARCH_SELECT_MEMORY_MODEL
Al Viro034d2f52005-12-19 16:27:59 -0500467 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800468 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000469 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100470 select GENERIC_CLOCKEVENTS
471 select TICK_ONESHOT
Dmitry Baryshkov45528e32008-04-10 13:31:47 +0100472 select HAVE_GPIO_LIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000473 help
474 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475
476config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100477 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800478 select GENERIC_GPIO
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479 help
480 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
481 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000482 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483
484config ARCH_SHARK
485 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100486 select ISA
487 select ISA_DMA
488 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000489 help
490 Support for the StrongARM based Digital DNARD machine, also known
491 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492
493config ARCH_LH7A40X
494 bool "Sharp LH7A40X"
495 help
496 Say Y here for systems based on one of the Sharp LH7A40X
497 System on a Chip processors. These CPUs include an ARM922T
498 core with a wide array of integrated devices for
499 hand-held and low-power applications.
500
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100501config ARCH_DAVINCI
502 bool "TI DaVinci"
503 select GENERIC_TIME
504 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100505 select GENERIC_GPIO
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100506 help
507 Support for TI's DaVinci platform.
508
Russell King3b938be2007-05-12 11:25:44 +0100509config ARCH_OMAP
510 bool "TI OMAP"
511 select GENERIC_GPIO
David Brownell52e31342008-03-03 12:43:23 -0800512 select HAVE_GPIO_LIB
Russell King3b938be2007-05-12 11:25:44 +0100513 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700514 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100515 help
516 Support for TI's OMAP platform (OMAP1 and OMAP2).
517
Brian Swetland30421022007-11-26 04:11:43 -0800518config ARCH_MSM7X00A
519 bool "Qualcomm MSM7X00A"
520 select GENERIC_TIME
521 select GENERIC_CLOCKEVENTS
522 help
523 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
524 apps processor of the MSM7X00A and depends on a shared memory
525 interface to the ARM9 modem processor which runs the baseband stack
526 and controls some vital subsystems (clock and power control, etc).
527 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
528
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529endchoice
530
531source "arch/arm/mach-clps711x/Kconfig"
532
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000533source "arch/arm/mach-ep93xx/Kconfig"
534
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535source "arch/arm/mach-footbridge/Kconfig"
536
537source "arch/arm/mach-integrator/Kconfig"
538
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100539source "arch/arm/mach-iop32x/Kconfig"
540
541source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542
Dan Williams285f5fa2006-12-07 02:59:39 +0100543source "arch/arm/mach-iop13xx/Kconfig"
544
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545source "arch/arm/mach-ixp4xx/Kconfig"
546
547source "arch/arm/mach-ixp2000/Kconfig"
548
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100549source "arch/arm/mach-ixp23xx/Kconfig"
550
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200551source "arch/arm/mach-loki/Kconfig"
552
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200553source "arch/arm/mach-mv78xx0/Kconfig"
554
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555source "arch/arm/mach-pxa/Kconfig"
556
557source "arch/arm/mach-sa1100/Kconfig"
558
Tony Lindgrend48af152005-07-10 19:58:17 +0100559source "arch/arm/plat-omap/Kconfig"
560
561source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562
Tony Lindgren1dbae812005-11-10 14:26:51 +0000563source "arch/arm/mach-omap2/Kconfig"
564
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400565source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400566
Saeed Bishara651c74c2008-06-22 22:45:06 +0200567source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568
Ben Dooksa21765a2007-02-11 18:31:01 +0100569source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100570source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100571
572if ARCH_S3C2410
573source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100575source "arch/arm/mach-s3c2412/Kconfig"
576source "arch/arm/mach-s3c2440/Kconfig"
577source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100578source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100579endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580
581source "arch/arm/mach-lh7a40x/Kconfig"
582
583source "arch/arm/mach-imx/Kconfig"
584
585source "arch/arm/mach-h720x/Kconfig"
586
587source "arch/arm/mach-versatile/Kconfig"
588
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100589source "arch/arm/mach-aaec2000/Kconfig"
590
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000591source "arch/arm/mach-realview/Kconfig"
592
Andrew Victor9d041262007-02-05 11:42:07 +0100593source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000594
Quinn Jensen52c543f2007-07-09 22:06:53 +0100595source "arch/arm/plat-mxc/Kconfig"
596
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100597source "arch/arm/mach-netx/Kconfig"
598
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100599source "arch/arm/mach-ns9xxx/Kconfig"
600
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100601source "arch/arm/mach-davinci/Kconfig"
602
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100603source "arch/arm/mach-ks8695/Kconfig"
604
Brian Swetland9e73c842007-11-26 04:12:13 -0800605source "arch/arm/mach-msm/Kconfig"
606
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607# Definitions to make life easier
608config ARCH_ACORN
609 bool
610
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100611config PLAT_IOP
612 bool
613
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400614config PLAT_ORION
615 bool
616
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617source arch/arm/mm/Kconfig
618
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100619config IWMMXT
620 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100621 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700622 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100623 help
624 Enable support for iWMMXt context switching at run time if
625 running on a CPU that supports it.
626
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
628config XSCALE_PMU
629 bool
630 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
631 default y
632
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100633if !MMU
634source "arch/arm/Kconfig-nommu"
635endif
636
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637endmenu
638
639source "arch/arm/common/Kconfig"
640
641config FORCE_MAX_ZONEORDER
642 int
643 depends on SA1111
644 default "9"
645
646menu "Bus support"
647
648config ARM_AMBA
649 bool
650
651config ISA
652 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653 help
654 Find out whether you have ISA slots on your motherboard. ISA is the
655 name of a bus system, i.e. the way the CPU talks to the other stuff
656 inside your box. Other bus systems are PCI, EISA, MicroChannel
657 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
658 newer boards don't support it. If you have ISA, say Y, otherwise N.
659
Russell King065909b2006-01-04 15:44:16 +0000660# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661config ISA_DMA
662 bool
Russell King065909b2006-01-04 15:44:16 +0000663 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664
Russell King065909b2006-01-04 15:44:16 +0000665# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100666config ISA_DMA_API
667 bool
Al Viro5cae8412005-05-04 05:39:22 +0100668
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100670 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671 help
672 Find out whether you have a PCI motherboard. PCI is the name of a
673 bus system, i.e. the way the CPU talks to the other stuff inside
674 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
675 VESA. If you have PCI, say Y, otherwise N.
676
Matthew Wilcox36e23592007-07-10 10:54:40 -0600677config PCI_SYSCALL
678 def_bool PCI
679
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680# Select the host bridge type
681config PCI_HOST_VIA82C505
682 bool
683 depends on PCI && ARCH_SHARK
684 default y
685
Mike Rapoporta0113a92007-11-25 08:55:34 +0100686config PCI_HOST_ITE8152
687 bool
688 depends on PCI && MACH_ARMCORE
689 default y
690 select DMABOUNCE
691
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692source "drivers/pci/Kconfig"
693
694source "drivers/pcmcia/Kconfig"
695
696endmenu
697
698menu "Kernel Features"
699
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100700source "kernel/time/Kconfig"
701
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702config SMP
703 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100704 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Jens Axboef6dd9fa52008-06-10 20:48:30 +0200705 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706 help
707 This enables support for systems with more than one CPU. If you have
708 a system with only one CPU, like most personal computers, say N. If
709 you have a system with more than one CPU, say Y.
710
711 If you say N here, the kernel will run on single and multiprocessor
712 machines, but will use only one CPU of a multiprocessor machine. If
713 you say Y here, the kernel will run on many, but not all, single
714 processor machines. On a single processor machine, the kernel will
715 run faster if you say N here.
716
Adrian Bunk03502fa2008-02-03 15:50:21 +0200717 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700718 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
719 <http://www.linuxdoc.org/docs.html#howto>.
720
721 If you don't know what to do here, say N.
722
723config NR_CPUS
724 int "Maximum number of CPUs (2-32)"
725 range 2 32
726 depends on SMP
727 default "4"
728
Russell Kinga054a812005-11-02 22:24:33 +0000729config HOTPLUG_CPU
730 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
731 depends on SMP && HOTPLUG && EXPERIMENTAL
732 help
733 Say Y here to experiment with turning CPUs off and on. CPUs
734 can be controlled through /sys/devices/system/cpu.
735
Russell King37ee16a2005-11-08 19:08:05 +0000736config LOCAL_TIMERS
737 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100738 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000739 default y
740 help
741 Enable support for local timers on SMP platforms, rather then the
742 legacy IPI broadcast method. Local timers allows the system
743 accounting to be spread across the timer interval, preventing a
744 "thundering herd" at every timer tick.
745
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746config PREEMPT
747 bool "Preemptible Kernel (EXPERIMENTAL)"
748 depends on EXPERIMENTAL
749 help
750 This option reduces the latency of the kernel when reacting to
751 real-time or interactive events by allowing a low priority process to
752 be preempted even if it is in kernel mode executing a system call.
753 This allows applications to run more reliably even when the system is
754 under load.
755
756 Say Y here if you are building a kernel for a desktop, embedded
757 or real-time system. Say N if you are unsure.
758
Russell Kingf8065812006-03-02 22:41:59 +0000759config HZ
760 int
761 default 128 if ARCH_L7200
762 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000763 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100764 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000765 default 100
766
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000767config AEABI
768 bool "Use the ARM EABI to compile the kernel"
769 help
770 This option allows for the kernel to be compiled using the latest
771 ARM ABI (aka EABI). This is only useful if you are using a user
772 space environment that is also compiled with EABI.
773
774 Since there are major incompatibilities between the legacy ABI and
775 EABI, especially with regard to structure member alignment, this
776 option also changes the kernel syscall calling convention to
777 disambiguate both ABIs and allow for backward compatibility support
778 (selected with CONFIG_OABI_COMPAT).
779
780 To use this you need GCC version 4.0.0 or later.
781
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000782config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000783 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000784 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000785 default y
786 help
787 This option preserves the old syscall interface along with the
788 new (ARM EABI) one. It also provides a compatibility layer to
789 intercept syscalls that have structure arguments which layout
790 in memory differs between the legacy ABI and the new ARM EABI
791 (only for non "thumb" binaries). This option adds a tiny
792 overhead to all syscalls and produces a slightly larger kernel.
793 If you know you'll be using only pure EABI user space then you
794 can say N here. If this option is not selected and you attempt
795 to execute a legacy ABI binary then the result will be
796 UNPREDICTABLE (in fact it can be predicted that it won't work
797 at all). If in doubt say Y.
798
Dave Hansen3f22ab22005-06-23 00:07:43 -0700799config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100801 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802 help
803 Say Y to support efficient handling of discontiguous physical memory,
804 for architectures which are either NUMA (Non-Uniform Memory Access)
805 or have huge holes in the physical address space for other reasons.
806 See <file:Documentation/vm/numa> for more.
807
Russell King05944d72006-11-30 20:43:51 +0000808config ARCH_SPARSEMEM_ENABLE
809 bool
810
811config ARCH_SELECT_MEMORY_MODEL
812 bool
813
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700814config NODES_SHIFT
815 int
816 default "4" if ARCH_LH7A40X
817 default "2"
818 depends on NEED_MULTIPLE_NODES
819
Dave Hansen3f22ab22005-06-23 00:07:43 -0700820source "mm/Kconfig"
821
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822config LEDS
823 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +0100824 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700825 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
826 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
827 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000828 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100829 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400830 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700831 help
832 If you say Y here, the LEDs on your machine will be used
833 to provide useful information about your current system status.
834
835 If you are compiling a kernel for a NetWinder or EBSA-285, you will
836 be able to select which LEDs are active using the options below. If
837 you are compiling a kernel for the EBSA-110 or the LART however, the
838 red LED will simply flash regularly to indicate that the system is
839 still functional. It is safe to say Y here if you have a CATS
840 system, but the driver will do nothing.
841
842config LEDS_TIMER
843 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700844 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
845 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100847 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848 default y if ARCH_EBSA110
849 help
850 If you say Y here, one of the system LEDs (the green one on the
851 NetWinder, the amber one on the EBSA285, or the red one on the LART)
852 will flash regularly to indicate that the system is still
853 operational. This is mainly useful to kernel hackers who are
854 debugging unstable kernels.
855
856 The LART uses the same LED for both Timer LED and CPU usage LED
857 functions. You may choose to use both, but the Timer LED function
858 will overrule the CPU usage LED.
859
860config LEDS_CPU
861 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700862 !ARCH_OMAP) \
863 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
864 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865 depends on LEDS
866 help
867 If you say Y here, the red LED will be used to give a good real
868 time indication of CPU usage, by lighting whenever the idle task
869 is not currently executing.
870
871 The LART uses the same LED for both Timer LED and CPU usage LED
872 functions. You may choose to use both, but the Timer LED function
873 will overrule the CPU usage LED.
874
875config ALIGNMENT_TRAP
876 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900877 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878 default y if !ARCH_EBSA110
879 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200880 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
882 address divisible by 4. On 32-bit ARM processors, these non-aligned
883 fetch/store instructions will be emulated in software if you say
884 here, which has a severe performance impact. This is necessary for
885 correct operation of some network protocols. With an IP-only
886 configuration it is safe to say N, otherwise say Y.
887
888endmenu
889
890menu "Boot options"
891
892# Compressed boot loader in ROM. Yes, we really want to ask about
893# TEXT and BSS so we preserve their values in the config files.
894config ZBOOT_ROM_TEXT
895 hex "Compressed ROM boot loader base address"
896 default "0"
897 help
898 The physical address at which the ROM-able zImage is to be
899 placed in the target. Platforms which normally make use of
900 ROM-able zImage formats normally set this to a suitable
901 value in their defconfig file.
902
903 If ZBOOT_ROM is not enabled, this has no effect.
904
905config ZBOOT_ROM_BSS
906 hex "Compressed ROM boot loader BSS address"
907 default "0"
908 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100909 The base address of an area of read/write memory in the target
910 for the ROM-able zImage which must be available while the
911 decompressor is running. It must be large enough to hold the
912 entire decompressed kernel plus an additional 128 KiB.
913 Platforms which normally make use of ROM-able zImage formats
914 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915
916 If ZBOOT_ROM is not enabled, this has no effect.
917
918config ZBOOT_ROM
919 bool "Compressed boot loader in ROM/flash"
920 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
921 help
922 Say Y here if you intend to execute your compressed kernel image
923 (zImage) directly from ROM or flash. If unsure, say N.
924
925config CMDLINE
926 string "Default kernel command string"
927 default ""
928 help
929 On some architectures (EBSA110 and CATS), there is currently no way
930 for the boot loader to pass arguments to the kernel. For these
931 architectures, you should supply some command-line options at build
932 time by entering them here. As a minimum, you should specify the
933 memory size and the root device (e.g., mem=64M root=/dev/nfs).
934
935config XIP_KERNEL
936 bool "Kernel Execute-In-Place from ROM"
937 depends on !ZBOOT_ROM
938 help
939 Execute-In-Place allows the kernel to run from non-volatile storage
940 directly addressable by the CPU, such as NOR flash. This saves RAM
941 space since the text section of the kernel is not loaded from flash
942 to RAM. Read-write sections, such as the data section and stack,
943 are still copied to RAM. The XIP kernel is not compressed since
944 it has to run directly from flash, so it will take more space to
945 store it. The flash address used to link the kernel object files,
946 and for storing it, is configuration dependent. Therefore, if you
947 say Y here, you must know the proper physical address where to
948 store the kernel image depending on your own flash memory usage.
949
950 Also note that the make target becomes "make xipImage" rather than
951 "make zImage" or "make Image". The final kernel binary to put in
952 ROM memory will be arch/arm/boot/xipImage.
953
954 If unsure, say N.
955
956config XIP_PHYS_ADDR
957 hex "XIP Kernel Physical Location"
958 depends on XIP_KERNEL
959 default "0x00080000"
960 help
961 This is the physical address in your flash memory the kernel will
962 be linked for and stored to. This address is dependent on your
963 own flash usage.
964
Richard Purdiec587e4a2007-02-06 21:29:00 +0100965config KEXEC
966 bool "Kexec system call (EXPERIMENTAL)"
967 depends on EXPERIMENTAL
968 help
969 kexec is a system call that implements the ability to shutdown your
970 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200971 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +0100972 you can start any kernel with it, not just Linux.
973
974 It is an ongoing process to be certain the hardware in a machine
975 is properly shutdown, so do not be surprised if this code does not
976 initially work for you. It may help to enable device hotplugging
977 support.
978
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100979config ATAGS_PROC
980 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +0100981 depends on KEXEC
982 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100983 help
984 Should the atags used to boot the kernel be exported in an "atags"
985 file in procfs. Useful with kexec.
986
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987endmenu
988
Russell King9e2697f2007-12-14 13:30:14 +0000989if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990
991menu "CPU Frequency scaling"
992
993source "drivers/cpufreq/Kconfig"
994
995config CPU_FREQ_SA1100
996 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +0100997 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 -0700998 default y
999
1000config CPU_FREQ_SA1110
1001 bool
1002 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1003 default y
1004
1005config CPU_FREQ_INTEGRATOR
1006 tristate "CPUfreq driver for ARM Integrator CPUs"
1007 depends on ARCH_INTEGRATOR && CPU_FREQ
1008 default y
1009 help
1010 This enables the CPUfreq driver for ARM Integrator CPUs.
1011
1012 For details, take a look at <file:Documentation/cpu-freq>.
1013
1014 If in doubt, say Y.
1015
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +01001016config CPU_FREQ_IMX
1017 tristate "CPUfreq driver for i.MX CPUs"
1018 depends on ARCH_IMX && CPU_FREQ
1019 default n
1020 help
1021 This enables the CPUfreq driver for i.MX CPUs.
1022
1023 If in doubt, say N.
1024
Russell King9e2697f2007-12-14 13:30:14 +00001025config CPU_FREQ_PXA
1026 bool
1027 depends on CPU_FREQ && ARCH_PXA && PXA25x
1028 default y
1029 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1030
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031endmenu
1032
1033endif
1034
1035menu "Floating point emulation"
1036
1037comment "At least one emulation must be selected"
1038
1039config FPE_NWFPE
1040 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001041 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042 ---help---
1043 Say Y to include the NWFPE floating point emulator in the kernel.
1044 This is necessary to run most binaries. Linux does not currently
1045 support floating point hardware so you need to say Y here even if
1046 your machine has an FPA or floating point co-processor podule.
1047
1048 You may say N here if you are going to load the Acorn FPEmulator
1049 early in the bootup.
1050
1051config FPE_NWFPE_XP
1052 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001053 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001054 help
1055 Say Y to include 80-bit support in the kernel floating-point
1056 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1057 Note that gcc does not generate 80-bit operations by default,
1058 so in most cases this option only enlarges the size of the
1059 floating point emulator without any good reason.
1060
1061 You almost surely want to say N here.
1062
1063config FPE_FASTFPE
1064 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001065 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066 ---help---
1067 Say Y here to include the FAST floating point emulator in the kernel.
1068 This is an experimental much faster emulator which now also has full
1069 precision for the mantissa. It does not support any exceptions.
1070 It is very simple, and approximately 3-6 times faster than NWFPE.
1071
1072 It should be sufficient for most programs. It may be not suitable
1073 for scientific calculations, but you have to check this for yourself.
1074 If you do not feel you need a faster FP emulation you should better
1075 choose NWFPE.
1076
1077config VFP
1078 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001079 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080 help
1081 Say Y to include VFP support code in the kernel. This is needed
1082 if your hardware includes a VFP unit.
1083
1084 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1085 release notes and additional status information.
1086
1087 Say N if your target does not have VFP hardware.
1088
Catalin Marinas25ebee02007-09-25 15:22:24 +01001089config VFPv3
1090 bool
1091 depends on VFP
1092 default y if CPU_V7
1093
Catalin Marinasb5872db2008-01-10 19:16:17 +01001094config NEON
1095 bool "Advanced SIMD (NEON) Extension support"
1096 depends on VFPv3 && CPU_V7
1097 help
1098 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1099 Extension.
1100
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101endmenu
1102
1103menu "Userspace binary formats"
1104
1105source "fs/Kconfig.binfmt"
1106
1107config ARTHUR
1108 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001109 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110 help
1111 Say Y here to include the kernel code necessary if you want to run
1112 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1113 experimental; if this sounds frightening, say N and sleep in peace.
1114 You can also say M here to compile this support as a module (which
1115 will be called arthur).
1116
1117endmenu
1118
1119menu "Power management options"
1120
Russell Kingeceab4a2005-11-15 11:31:41 +00001121source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122
Johannes Bergf4cb5702007-12-08 02:14:00 +01001123config ARCH_SUSPEND_POSSIBLE
1124 def_bool y
1125
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126endmenu
1127
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001128source "net/Kconfig"
1129
Linus Torvalds1da177e2005-04-16 15:20:36 -07001130menu "Device Drivers"
1131
1132source "drivers/base/Kconfig"
1133
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001134source "drivers/connector/Kconfig"
1135
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001136if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001137source "drivers/mtd/Kconfig"
1138endif
1139
1140source "drivers/parport/Kconfig"
1141
1142source "drivers/pnp/Kconfig"
1143
1144source "drivers/block/Kconfig"
1145
Russell King58273e52007-10-12 22:24:09 +01001146# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1147
1148source "drivers/misc/Kconfig"
1149
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151
1152source "drivers/scsi/Kconfig"
1153
Martin Michlmayreb370f02006-11-17 00:14:35 +01001154source "drivers/ata/Kconfig"
1155
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156source "drivers/md/Kconfig"
1157
1158source "drivers/message/fusion/Kconfig"
1159
1160source "drivers/ieee1394/Kconfig"
1161
1162source "drivers/message/i2o/Kconfig"
1163
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001164source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001165
1166source "drivers/isdn/Kconfig"
1167
1168# input before char - char/joystick depends on it. As does USB.
1169
1170source "drivers/input/Kconfig"
1171
1172source "drivers/char/Kconfig"
1173
1174source "drivers/i2c/Kconfig"
1175
David Brownell8ae12a02006-01-08 13:34:19 -08001176source "drivers/spi/Kconfig"
1177
David Brownella9c5fff2008-02-04 22:28:17 -08001178source "drivers/gpio/Kconfig"
1179
Alessandro Zummo04916c02006-03-10 22:30:01 +00001180source "drivers/w1/Kconfig"
1181
Russell King58273e52007-10-12 22:24:09 +01001182source "drivers/power/Kconfig"
1183
Jean Delvaread2f9312005-07-02 18:15:49 +02001184source "drivers/hwmon/Kconfig"
1185
Russell King70dfa3f2007-11-07 14:13:35 +00001186source "drivers/watchdog/Kconfig"
1187
Russell King58273e52007-10-12 22:24:09 +01001188source "drivers/ssb/Kconfig"
1189
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190#source "drivers/l3/Kconfig"
1191
Russell Kinga4e137a2005-08-18 10:06:59 +01001192source "drivers/mfd/Kconfig"
1193
Linus Torvalds1da177e2005-04-16 15:20:36 -07001194source "drivers/media/Kconfig"
1195
1196source "drivers/video/Kconfig"
1197
1198source "sound/Kconfig"
1199
Sascha Hauerc2dade52006-12-12 10:32:42 +01001200source "drivers/hid/Kconfig"
1201
Linus Torvalds1da177e2005-04-16 15:20:36 -07001202source "drivers/usb/Kconfig"
1203
1204source "drivers/mmc/Kconfig"
1205
Russell King58273e52007-10-12 22:24:09 +01001206source "drivers/leds/Kconfig"
1207
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001208source "drivers/rtc/Kconfig"
1209
Dan Williams58168152007-01-02 11:10:43 -07001210source "drivers/dma/Kconfig"
1211
Dan Williamsabf07b12008-01-18 23:26:10 +01001212source "drivers/dca/Kconfig"
1213
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001214source "drivers/uio/Kconfig"
1215
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216endmenu
1217
1218source "fs/Kconfig"
1219
Linus Torvalds1da177e2005-04-16 15:20:36 -07001220source "arch/arm/Kconfig.debug"
1221
1222source "security/Kconfig"
1223
1224source "crypto/Kconfig"
1225
1226source "lib/Kconfig"