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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)
Linus Torvalds1da177e2005-04-16 15:20:36 -070019 help
20 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000021 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000023 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 Europe. There is an ARM Linux project with a web page at
25 <http://www.arm.linux.org.uk/>.
26
Russell King1a189b92008-04-13 21:41:55 +010027config HAVE_PWM
28 bool
29
Ralf Baechle75e71532007-02-09 17:08:58 +000030config SYS_SUPPORTS_APM_EMULATION
31 bool
32
David Brownell0a938b92007-03-05 00:30:18 -080033config GENERIC_GPIO
34 bool
35 default n
36
Kevin Hilman746140c2006-09-22 00:16:30 +010037config GENERIC_TIME
38 bool
39 default n
40
Kevin Hilman0567a0c2007-03-13 20:29:24 +010041config GENERIC_CLOCKEVENTS
42 bool
43 default n
44
Catalin Marinasa8655e82008-02-04 17:30:57 +010045config GENERIC_CLOCKEVENTS_BROADCAST
46 bool
47 depends on GENERIC_CLOCKEVENTS
48 default y if SMP && !LOCAL_TIMERS
49
Linus Torvalds1da177e2005-04-16 15:20:36 -070050config MMU
51 bool
52 default y
53
Al Viro5ea81762007-02-11 15:41:31 +000054config NO_IOPORT
55 bool
56 default n
57
Linus Torvalds1da177e2005-04-16 15:20:36 -070058config EISA
59 bool
60 ---help---
61 The Extended Industry Standard Architecture (EISA) bus was
62 developed as an open alternative to the IBM MicroChannel bus.
63
64 The EISA bus provided some of the features of the IBM MicroChannel
65 bus while maintaining backward compatibility with cards made for
66 the older ISA bus. The EISA bus saw limited use between 1988 and
67 1995 when it was made obsolete by the PCI bus.
68
69 Say Y here if you are building a kernel for an EISA-based machine.
70
71 Otherwise, say N.
72
73config SBUS
74 bool
75
76config MCA
77 bool
78 help
79 MicroChannel Architecture is found in some IBM PS/2 machines and
80 laptops. It is a bus system similar to PCI or ISA. See
81 <file:Documentation/mca.txt> (and especially the web page given
82 there) before attempting to build an MCA bus kernel.
83
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010084config GENERIC_HARDIRQS
85 bool
86 default y
87
Russell Kingf16fb1e2007-04-28 09:59:37 +010088config STACKTRACE_SUPPORT
89 bool
90 default y
91
Nicolas Pitref76e9152008-04-24 01:31:46 -040092config HAVE_LATENCYTOP_SUPPORT
93 bool
94 depends on !SMP
95 default y
96
Russell Kingf16fb1e2007-04-28 09:59:37 +010097config LOCKDEP_SUPPORT
98 bool
99 default y
100
Russell King7ad1bcb2006-08-27 12:07:02 +0100101config TRACE_IRQFLAGS_SUPPORT
102 bool
103 default y
104
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100105config HARDIRQS_SW_RESEND
106 bool
107 default y
108
109config GENERIC_IRQ_PROBE
110 bool
111 default y
112
Nick Piggin95c354f2008-01-30 13:31:20 +0100113config GENERIC_LOCKBREAK
114 bool
115 default y
116 depends on SMP && PREEMPT
117
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118config RWSEM_GENERIC_SPINLOCK
119 bool
120 default y
121
122config RWSEM_XCHGADD_ALGORITHM
123 bool
124
David Howellsf0d1b0b2006-12-08 02:37:49 -0800125config ARCH_HAS_ILOG2_U32
126 bool
127 default n
128
129config ARCH_HAS_ILOG2_U64
130 bool
131 default n
132
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800133config GENERIC_HWEIGHT
134 bool
135 default y
136
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137config GENERIC_CALIBRATE_DELAY
138 bool
139 default y
140
David Howellsb0b933c2008-02-08 04:19:27 -0800141config ARCH_SUPPORTS_AOUT
142 def_bool y
143
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100144config ARCH_MAY_HAVE_PC_FDC
145 bool
146
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800147config ZONE_DMA
148 bool
149 default y
150
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151config GENERIC_ISA_DMA
152 bool
153
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154config FIQ
155 bool
156
Al Viro034d2f52005-12-19 16:27:59 -0500157config ARCH_MTD_XIP
158 bool
159
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100160config GENERIC_HARDIRQS_NO__DO_IRQ
161 bool
162 def_bool y
163
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500164if OPROFILE
165
166config OPROFILE_ARMV6
167 def_bool y
168 depends on CPU_V6 && !SMP
169 select OPROFILE_ARM11_CORE
170
171config OPROFILE_MPCORE
172 def_bool y
173 depends on CPU_V6 && SMP
174 select OPROFILE_ARM11_CORE
175
176config OPROFILE_ARM11_CORE
177 bool
178
179endif
180
Hyok S. Choic760fc12006-03-27 15:18:50 +0100181config VECTORS_BASE
182 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900183 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100184 default DRAM_BASE if REMAP_VECTORS_TO_RAM
185 default 0x00000000
186 help
187 The base address of exception vectors.
188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189source "init/Kconfig"
190
191menu "System Type"
192
193choice
194 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000195 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100197config ARCH_AAEC2000
198 bool "Agilent AAEC-2000 based"
199 select ARM_AMBA
200 help
201 This enables support for systems based on the Agilent AAEC-2000
202
203config ARCH_INTEGRATOR
204 bool "ARM Ltd. Integrator family"
205 select ARM_AMBA
206 select ICST525
207 help
208 Support for ARM's Integrator platform.
209
210config ARCH_REALVIEW
211 bool "ARM Ltd. RealView family"
212 select ARM_AMBA
213 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100214 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100215 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100216 help
217 This enables support for ARM Ltd RealView boards.
218
219config ARCH_VERSATILE
220 bool "ARM Ltd. Versatile family"
221 select ARM_AMBA
222 select ARM_VIC
223 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100224 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100225 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100226 help
227 This enables support for ARM Ltd Versatile board.
228
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100229config ARCH_AT91
230 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800231 select GENERIC_GPIO
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100233 This enables support for systems based on the Atmel AT91RM9200,
234 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100235
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100237 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100239 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000240 select NO_IOPORT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000241 help
242 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243
244config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100245 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000246 help
247 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249config ARCH_EBSA110
250 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100251 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000252 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253 help
254 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000255 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256 Ethernet interface, two PCMCIA sockets, two serial ports and a
257 parallel port.
258
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000259config ARCH_EP93XX
260 bool "EP93xx-based"
261 select ARM_AMBA
262 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100263 select GENERIC_GPIO
Ryan Mallonb6850042008-04-16 02:56:35 +0100264 select HAVE_GPIO_LIB
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000265 help
266 This enables support for the Cirrus EP93xx series of CPUs.
267
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268config ARCH_FOOTBRIDGE
269 bool "FootBridge"
270 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000271 help
272 Support for systems based on the DC21285 companion chip
273 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100275config ARCH_NETX
276 bool "Hilscher NetX based"
277 select ARM_VIC
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000278 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100279 This enables support for systems based on the Hilscher NetX Soc
280
281config ARCH_H720X
282 bool "Hynix HMS720x-based"
283 select ISA_DMA_API
284 help
285 This enables support for systems based on the Hynix HMS720x
286
287config ARCH_IMX
288 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100289 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100290 select GENERIC_TIME
291 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100292 help
293 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294
Russell King3b938be2007-05-12 11:25:44 +0100295config ARCH_IOP13XX
296 bool "IOP13xx-based"
297 depends on MMU
298 select PLAT_IOP
299 select PCI
300 select ARCH_SUPPORTS_MSI
301 help
302 Support for Intel's IOP13XX (XScale) family of processors.
303
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100304config ARCH_IOP32X
305 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100306 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100307 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100308 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100309 select GENERIC_GPIO
310 select HAVE_GPIO_LIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000311 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100312 Support for Intel's 80219 and IOP32X (XScale) family of
313 processors.
314
315config ARCH_IOP33X
316 bool "IOP33x-based"
317 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100318 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100319 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100320 select GENERIC_GPIO
321 select HAVE_GPIO_LIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100322 help
323 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324
Russell King3b938be2007-05-12 11:25:44 +0100325config ARCH_IXP23XX
326 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100327 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100328 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100329 help
Russell King3b938be2007-05-12 11:25:44 +0100330 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331
332config ARCH_IXP2000
333 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100334 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100335 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000336 help
337 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338
Russell King3b938be2007-05-12 11:25:44 +0100339config ARCH_IXP4XX
340 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100341 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100342 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100343 select GENERIC_TIME
344 select GENERIC_CLOCKEVENTS
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100345 help
Russell King3b938be2007-05-12 11:25:44 +0100346 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100347
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348config ARCH_L7200
349 bool "LinkUp-L7200"
350 select FIQ
351 help
352 Say Y here if you intend to run this kernel on a LinkUp Systems
353 L7200 Software Development Board which uses an ARM720T processor.
354 Information on this board can be obtained at:
355
356 <http://www.linkupsys.com/>
357
358 If you have any questions or comments about the Linux kernel port
359 to this board, send e-mail to <sjhill@cotw.com>.
360
Saeed Bishara651c74c2008-06-22 22:45:06 +0200361config ARCH_KIRKWOOD
362 bool "Marvell Kirkwood"
363 select PCI
364 select GENERIC_TIME
365 select GENERIC_CLOCKEVENTS
366 select PLAT_ORION
367 help
368 Support for the following Marvell Kirkwood series SoCs:
369 88F6180, 88F6192 and 88F6281.
370
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100371config ARCH_KS8695
372 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100373 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100374 help
375 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
376 System-on-Chip devices.
377
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100378config ARCH_NS9XXX
379 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100380 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100381 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100382 select GENERIC_CLOCKEVENTS
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100383 help
384 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
385 System.
386
387 <http://www.digi.com/products/microprocessors/index.jsp>
388
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200389config ARCH_LOKI
390 bool "Marvell Loki (88RC8480)"
391 select GENERIC_TIME
392 select GENERIC_CLOCKEVENTS
393 select PLAT_ORION
394 help
395 Support for the Marvell Loki (88RC8480) SoC.
396
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200397config ARCH_MV78XX0
398 bool "Marvell MV78xx0"
399 select PCI
400 select GENERIC_TIME
401 select GENERIC_CLOCKEVENTS
402 select PLAT_ORION
403 help
404 Support for the following Marvell MV78xx0 series SoCs:
405 MV781x0, MV782x0.
406
Quinn Jensen52c543f2007-07-09 22:06:53 +0100407config ARCH_MXC
408 bool "Freescale MXC/iMX-based"
Juergen Beisertd0f349f2008-07-05 10:02:50 +0200409 select GENERIC_TIME
410 select GENERIC_CLOCKEVENTS
Quinn Jensen52c543f2007-07-09 22:06:53 +0100411 select ARCH_MTD_XIP
Juergen Beisert07bd1a62008-07-05 10:02:49 +0200412 select GENERIC_GPIO
413 select HAVE_GPIO_LIB
Quinn Jensen52c543f2007-07-09 22:06:53 +0100414 help
415 Support for Freescale MXC/iMX-based family of processors
416
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400417config ARCH_ORION5X
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400418 bool "Marvell Orion"
419 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400420 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400421 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400422 select GENERIC_TIME
423 select GENERIC_CLOCKEVENTS
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400424 select PLAT_ORION
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400425 help
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400426 Support for the following Marvell Orion 5x series SoCs:
Lennert Buytenhekd2b2a6b2008-05-31 08:30:40 +0200427 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
428 Orion-2 (5281).
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400429
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100430config ARCH_PNX4008
431 bool "Philips Nexperia PNX4008 Mobile"
432 help
433 This enables support for Philips PNX4008 mobile platform.
434
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700436 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100437 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500438 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800439 select GENERIC_GPIO
Philipp Zabel1c44f5f2008-02-04 22:28:22 -0800440 select HAVE_GPIO_LIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100441 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100442 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000443 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000444 help
eric miao2c8086a2007-09-11 19:13:17 -0700445 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446
447config ARCH_RPC
448 bool "RiscPC"
449 select ARCH_ACORN
450 select FIQ
451 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100452 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100453 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000454 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000455 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456 help
457 On the Acorn Risc-PC, Linux can support the internal IDE disk and
458 CD-ROM interface, serial and parallel port, and the floppy drive.
459
460config ARCH_SA1100
461 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100462 select ISA
Russell King3cd9e192005-06-25 19:29:34 +0100463 select ARCH_DISCONTIGMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +0000464 select ARCH_SPARSEMEM_ENABLE
465 select ARCH_SELECT_MEMORY_MODEL
Al Viro034d2f52005-12-19 16:27:59 -0500466 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800467 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000468 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100469 select GENERIC_CLOCKEVENTS
470 select TICK_ONESHOT
Dmitry Baryshkov45528e32008-04-10 13:31:47 +0100471 select HAVE_GPIO_LIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000472 help
473 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474
475config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100476 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800477 select GENERIC_GPIO
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478 help
479 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
480 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000481 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482
483config ARCH_SHARK
484 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100485 select ISA
486 select ISA_DMA
487 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000488 help
489 Support for the StrongARM based Digital DNARD machine, also known
490 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491
492config ARCH_LH7A40X
493 bool "Sharp LH7A40X"
494 help
495 Say Y here for systems based on one of the Sharp LH7A40X
496 System on a Chip processors. These CPUs include an ARM922T
497 core with a wide array of integrated devices for
498 hand-held and low-power applications.
499
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100500config ARCH_DAVINCI
501 bool "TI DaVinci"
502 select GENERIC_TIME
503 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100504 select GENERIC_GPIO
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100505 help
506 Support for TI's DaVinci platform.
507
Russell King3b938be2007-05-12 11:25:44 +0100508config ARCH_OMAP
509 bool "TI OMAP"
510 select GENERIC_GPIO
David Brownell52e31342008-03-03 12:43:23 -0800511 select HAVE_GPIO_LIB
Russell King3b938be2007-05-12 11:25:44 +0100512 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700513 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100514 help
515 Support for TI's OMAP platform (OMAP1 and OMAP2).
516
Brian Swetland30421022007-11-26 04:11:43 -0800517config ARCH_MSM7X00A
518 bool "Qualcomm MSM7X00A"
519 select GENERIC_TIME
520 select GENERIC_CLOCKEVENTS
521 help
522 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
523 apps processor of the MSM7X00A and depends on a shared memory
524 interface to the ARM9 modem processor which runs the baseband stack
525 and controls some vital subsystems (clock and power control, etc).
526 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
527
Linus Torvalds1da177e2005-04-16 15:20:36 -0700528endchoice
529
530source "arch/arm/mach-clps711x/Kconfig"
531
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000532source "arch/arm/mach-ep93xx/Kconfig"
533
Linus Torvalds1da177e2005-04-16 15:20:36 -0700534source "arch/arm/mach-footbridge/Kconfig"
535
536source "arch/arm/mach-integrator/Kconfig"
537
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100538source "arch/arm/mach-iop32x/Kconfig"
539
540source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541
Dan Williams285f5fa2006-12-07 02:59:39 +0100542source "arch/arm/mach-iop13xx/Kconfig"
543
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544source "arch/arm/mach-ixp4xx/Kconfig"
545
546source "arch/arm/mach-ixp2000/Kconfig"
547
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100548source "arch/arm/mach-ixp23xx/Kconfig"
549
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200550source "arch/arm/mach-loki/Kconfig"
551
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200552source "arch/arm/mach-mv78xx0/Kconfig"
553
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554source "arch/arm/mach-pxa/Kconfig"
555
556source "arch/arm/mach-sa1100/Kconfig"
557
Tony Lindgrend48af152005-07-10 19:58:17 +0100558source "arch/arm/plat-omap/Kconfig"
559
560source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700561
Tony Lindgren1dbae812005-11-10 14:26:51 +0000562source "arch/arm/mach-omap2/Kconfig"
563
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400564source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400565
Saeed Bishara651c74c2008-06-22 22:45:06 +0200566source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567
Ben Dooksa21765a2007-02-11 18:31:01 +0100568source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100569source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100570
571if ARCH_S3C2410
572source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700573source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100574source "arch/arm/mach-s3c2412/Kconfig"
575source "arch/arm/mach-s3c2440/Kconfig"
576source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100577source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100578endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579
580source "arch/arm/mach-lh7a40x/Kconfig"
581
582source "arch/arm/mach-imx/Kconfig"
583
584source "arch/arm/mach-h720x/Kconfig"
585
586source "arch/arm/mach-versatile/Kconfig"
587
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100588source "arch/arm/mach-aaec2000/Kconfig"
589
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000590source "arch/arm/mach-realview/Kconfig"
591
Andrew Victor9d041262007-02-05 11:42:07 +0100592source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000593
Quinn Jensen52c543f2007-07-09 22:06:53 +0100594source "arch/arm/plat-mxc/Kconfig"
595
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100596source "arch/arm/mach-netx/Kconfig"
597
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100598source "arch/arm/mach-ns9xxx/Kconfig"
599
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100600source "arch/arm/mach-davinci/Kconfig"
601
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100602source "arch/arm/mach-ks8695/Kconfig"
603
Brian Swetland9e73c842007-11-26 04:12:13 -0800604source "arch/arm/mach-msm/Kconfig"
605
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606# Definitions to make life easier
607config ARCH_ACORN
608 bool
609
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100610config PLAT_IOP
611 bool
612
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400613config PLAT_ORION
614 bool
615
Linus Torvalds1da177e2005-04-16 15:20:36 -0700616source arch/arm/mm/Kconfig
617
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100618config IWMMXT
619 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100620 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700621 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100622 help
623 Enable support for iWMMXt context switching at run time if
624 running on a CPU that supports it.
625
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
627config XSCALE_PMU
628 bool
629 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
630 default y
631
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100632if !MMU
633source "arch/arm/Kconfig-nommu"
634endif
635
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636endmenu
637
638source "arch/arm/common/Kconfig"
639
640config FORCE_MAX_ZONEORDER
641 int
642 depends on SA1111
643 default "9"
644
645menu "Bus support"
646
647config ARM_AMBA
648 bool
649
650config ISA
651 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652 help
653 Find out whether you have ISA slots on your motherboard. ISA is the
654 name of a bus system, i.e. the way the CPU talks to the other stuff
655 inside your box. Other bus systems are PCI, EISA, MicroChannel
656 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
657 newer boards don't support it. If you have ISA, say Y, otherwise N.
658
Russell King065909b2006-01-04 15:44:16 +0000659# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660config ISA_DMA
661 bool
Russell King065909b2006-01-04 15:44:16 +0000662 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663
Russell King065909b2006-01-04 15:44:16 +0000664# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100665config ISA_DMA_API
666 bool
Al Viro5cae8412005-05-04 05:39:22 +0100667
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100669 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670 help
671 Find out whether you have a PCI motherboard. PCI is the name of a
672 bus system, i.e. the way the CPU talks to the other stuff inside
673 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
674 VESA. If you have PCI, say Y, otherwise N.
675
Matthew Wilcox36e23592007-07-10 10:54:40 -0600676config PCI_SYSCALL
677 def_bool PCI
678
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679# Select the host bridge type
680config PCI_HOST_VIA82C505
681 bool
682 depends on PCI && ARCH_SHARK
683 default y
684
Mike Rapoporta0113a92007-11-25 08:55:34 +0100685config PCI_HOST_ITE8152
686 bool
687 depends on PCI && MACH_ARMCORE
688 default y
689 select DMABOUNCE
690
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691source "drivers/pci/Kconfig"
692
693source "drivers/pcmcia/Kconfig"
694
695endmenu
696
697menu "Kernel Features"
698
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100699source "kernel/time/Kconfig"
700
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701config SMP
702 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100703 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Jens Axboef6dd9fa52008-06-10 20:48:30 +0200704 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705 help
706 This enables support for systems with more than one CPU. If you have
707 a system with only one CPU, like most personal computers, say N. If
708 you have a system with more than one CPU, say Y.
709
710 If you say N here, the kernel will run on single and multiprocessor
711 machines, but will use only one CPU of a multiprocessor machine. If
712 you say Y here, the kernel will run on many, but not all, single
713 processor machines. On a single processor machine, the kernel will
714 run faster if you say N here.
715
Adrian Bunk03502fa2008-02-03 15:50:21 +0200716 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
718 <http://www.linuxdoc.org/docs.html#howto>.
719
720 If you don't know what to do here, say N.
721
722config NR_CPUS
723 int "Maximum number of CPUs (2-32)"
724 range 2 32
725 depends on SMP
726 default "4"
727
Russell Kinga054a812005-11-02 22:24:33 +0000728config HOTPLUG_CPU
729 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
730 depends on SMP && HOTPLUG && EXPERIMENTAL
731 help
732 Say Y here to experiment with turning CPUs off and on. CPUs
733 can be controlled through /sys/devices/system/cpu.
734
Russell King37ee16a2005-11-08 19:08:05 +0000735config LOCAL_TIMERS
736 bool "Use local timer interrupts"
Bahadir Balban78fdcb42008-04-18 22:43:14 +0100737 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
Russell King37ee16a2005-11-08 19:08:05 +0000738 default y
739 help
740 Enable support for local timers on SMP platforms, rather then the
741 legacy IPI broadcast method. Local timers allows the system
742 accounting to be spread across the timer interval, preventing a
743 "thundering herd" at every timer tick.
744
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745config PREEMPT
746 bool "Preemptible Kernel (EXPERIMENTAL)"
747 depends on EXPERIMENTAL
748 help
749 This option reduces the latency of the kernel when reacting to
750 real-time or interactive events by allowing a low priority process to
751 be preempted even if it is in kernel mode executing a system call.
752 This allows applications to run more reliably even when the system is
753 under load.
754
755 Say Y here if you are building a kernel for a desktop, embedded
756 or real-time system. Say N if you are unsure.
757
Russell Kingf8065812006-03-02 22:41:59 +0000758config HZ
759 int
760 default 128 if ARCH_L7200
761 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000762 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100763 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000764 default 100
765
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000766config AEABI
767 bool "Use the ARM EABI to compile the kernel"
768 help
769 This option allows for the kernel to be compiled using the latest
770 ARM ABI (aka EABI). This is only useful if you are using a user
771 space environment that is also compiled with EABI.
772
773 Since there are major incompatibilities between the legacy ABI and
774 EABI, especially with regard to structure member alignment, this
775 option also changes the kernel syscall calling convention to
776 disambiguate both ABIs and allow for backward compatibility support
777 (selected with CONFIG_OABI_COMPAT).
778
779 To use this you need GCC version 4.0.0 or later.
780
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000781config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000782 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000783 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000784 default y
785 help
786 This option preserves the old syscall interface along with the
787 new (ARM EABI) one. It also provides a compatibility layer to
788 intercept syscalls that have structure arguments which layout
789 in memory differs between the legacy ABI and the new ARM EABI
790 (only for non "thumb" binaries). This option adds a tiny
791 overhead to all syscalls and produces a slightly larger kernel.
792 If you know you'll be using only pure EABI user space then you
793 can say N here. If this option is not selected and you attempt
794 to execute a legacy ABI binary then the result will be
795 UNPREDICTABLE (in fact it can be predicted that it won't work
796 at all). If in doubt say Y.
797
Dave Hansen3f22ab22005-06-23 00:07:43 -0700798config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700799 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100800 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801 help
802 Say Y to support efficient handling of discontiguous physical memory,
803 for architectures which are either NUMA (Non-Uniform Memory Access)
804 or have huge holes in the physical address space for other reasons.
805 See <file:Documentation/vm/numa> for more.
806
Russell King05944d72006-11-30 20:43:51 +0000807config ARCH_SPARSEMEM_ENABLE
808 bool
809
810config ARCH_SELECT_MEMORY_MODEL
811 bool
812
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700813config NODES_SHIFT
814 int
815 default "4" if ARCH_LH7A40X
816 default "2"
817 depends on NEED_MULTIPLE_NODES
818
Dave Hansen3f22ab22005-06-23 00:07:43 -0700819source "mm/Kconfig"
820
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821config LEDS
822 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +0100823 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700824 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
825 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
826 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000827 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100828 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400829 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830 help
831 If you say Y here, the LEDs on your machine will be used
832 to provide useful information about your current system status.
833
834 If you are compiling a kernel for a NetWinder or EBSA-285, you will
835 be able to select which LEDs are active using the options below. If
836 you are compiling a kernel for the EBSA-110 or the LART however, the
837 red LED will simply flash regularly to indicate that the system is
838 still functional. It is safe to say Y here if you have a CATS
839 system, but the driver will do nothing.
840
841config LEDS_TIMER
842 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700843 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
844 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100846 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700847 default y if ARCH_EBSA110
848 help
849 If you say Y here, one of the system LEDs (the green one on the
850 NetWinder, the amber one on the EBSA285, or the red one on the LART)
851 will flash regularly to indicate that the system is still
852 operational. This is mainly useful to kernel hackers who are
853 debugging unstable kernels.
854
855 The LART uses the same LED for both Timer LED and CPU usage LED
856 functions. You may choose to use both, but the Timer LED function
857 will overrule the CPU usage LED.
858
859config LEDS_CPU
860 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700861 !ARCH_OMAP) \
862 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
863 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864 depends on LEDS
865 help
866 If you say Y here, the red LED will be used to give a good real
867 time indication of CPU usage, by lighting whenever the idle task
868 is not currently executing.
869
870 The LART uses the same LED for both Timer LED and CPU usage LED
871 functions. You may choose to use both, but the Timer LED function
872 will overrule the CPU usage LED.
873
874config ALIGNMENT_TRAP
875 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900876 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877 default y if !ARCH_EBSA110
878 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200879 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
881 address divisible by 4. On 32-bit ARM processors, these non-aligned
882 fetch/store instructions will be emulated in software if you say
883 here, which has a severe performance impact. This is necessary for
884 correct operation of some network protocols. With an IP-only
885 configuration it is safe to say N, otherwise say Y.
886
887endmenu
888
889menu "Boot options"
890
891# Compressed boot loader in ROM. Yes, we really want to ask about
892# TEXT and BSS so we preserve their values in the config files.
893config ZBOOT_ROM_TEXT
894 hex "Compressed ROM boot loader base address"
895 default "0"
896 help
897 The physical address at which the ROM-able zImage is to be
898 placed in the target. Platforms which normally make use of
899 ROM-able zImage formats normally set this to a suitable
900 value in their defconfig file.
901
902 If ZBOOT_ROM is not enabled, this has no effect.
903
904config ZBOOT_ROM_BSS
905 hex "Compressed ROM boot loader BSS address"
906 default "0"
907 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100908 The base address of an area of read/write memory in the target
909 for the ROM-able zImage which must be available while the
910 decompressor is running. It must be large enough to hold the
911 entire decompressed kernel plus an additional 128 KiB.
912 Platforms which normally make use of ROM-able zImage formats
913 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914
915 If ZBOOT_ROM is not enabled, this has no effect.
916
917config ZBOOT_ROM
918 bool "Compressed boot loader in ROM/flash"
919 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
920 help
921 Say Y here if you intend to execute your compressed kernel image
922 (zImage) directly from ROM or flash. If unsure, say N.
923
924config CMDLINE
925 string "Default kernel command string"
926 default ""
927 help
928 On some architectures (EBSA110 and CATS), there is currently no way
929 for the boot loader to pass arguments to the kernel. For these
930 architectures, you should supply some command-line options at build
931 time by entering them here. As a minimum, you should specify the
932 memory size and the root device (e.g., mem=64M root=/dev/nfs).
933
934config XIP_KERNEL
935 bool "Kernel Execute-In-Place from ROM"
936 depends on !ZBOOT_ROM
937 help
938 Execute-In-Place allows the kernel to run from non-volatile storage
939 directly addressable by the CPU, such as NOR flash. This saves RAM
940 space since the text section of the kernel is not loaded from flash
941 to RAM. Read-write sections, such as the data section and stack,
942 are still copied to RAM. The XIP kernel is not compressed since
943 it has to run directly from flash, so it will take more space to
944 store it. The flash address used to link the kernel object files,
945 and for storing it, is configuration dependent. Therefore, if you
946 say Y here, you must know the proper physical address where to
947 store the kernel image depending on your own flash memory usage.
948
949 Also note that the make target becomes "make xipImage" rather than
950 "make zImage" or "make Image". The final kernel binary to put in
951 ROM memory will be arch/arm/boot/xipImage.
952
953 If unsure, say N.
954
955config XIP_PHYS_ADDR
956 hex "XIP Kernel Physical Location"
957 depends on XIP_KERNEL
958 default "0x00080000"
959 help
960 This is the physical address in your flash memory the kernel will
961 be linked for and stored to. This address is dependent on your
962 own flash usage.
963
Richard Purdiec587e4a2007-02-06 21:29:00 +0100964config KEXEC
965 bool "Kexec system call (EXPERIMENTAL)"
966 depends on EXPERIMENTAL
967 help
968 kexec is a system call that implements the ability to shutdown your
969 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200970 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +0100971 you can start any kernel with it, not just Linux.
972
973 It is an ongoing process to be certain the hardware in a machine
974 is properly shutdown, so do not be surprised if this code does not
975 initially work for you. It may help to enable device hotplugging
976 support.
977
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100978config ATAGS_PROC
979 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +0100980 depends on KEXEC
981 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +0100982 help
983 Should the atags used to boot the kernel be exported in an "atags"
984 file in procfs. Useful with kexec.
985
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986endmenu
987
Russell King9e2697f2007-12-14 13:30:14 +0000988if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989
990menu "CPU Frequency scaling"
991
992source "drivers/cpufreq/Kconfig"
993
994config CPU_FREQ_SA1100
995 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +0100996 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 -0700997 default y
998
999config CPU_FREQ_SA1110
1000 bool
1001 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1002 default y
1003
1004config CPU_FREQ_INTEGRATOR
1005 tristate "CPUfreq driver for ARM Integrator CPUs"
1006 depends on ARCH_INTEGRATOR && CPU_FREQ
1007 default y
1008 help
1009 This enables the CPUfreq driver for ARM Integrator CPUs.
1010
1011 For details, take a look at <file:Documentation/cpu-freq>.
1012
1013 If in doubt, say Y.
1014
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +01001015config CPU_FREQ_IMX
1016 tristate "CPUfreq driver for i.MX CPUs"
1017 depends on ARCH_IMX && CPU_FREQ
1018 default n
1019 help
1020 This enables the CPUfreq driver for i.MX CPUs.
1021
1022 If in doubt, say N.
1023
Russell King9e2697f2007-12-14 13:30:14 +00001024config CPU_FREQ_PXA
1025 bool
1026 depends on CPU_FREQ && ARCH_PXA && PXA25x
1027 default y
1028 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1029
Linus Torvalds1da177e2005-04-16 15:20:36 -07001030endmenu
1031
1032endif
1033
1034menu "Floating point emulation"
1035
1036comment "At least one emulation must be selected"
1037
1038config FPE_NWFPE
1039 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001040 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041 ---help---
1042 Say Y to include the NWFPE floating point emulator in the kernel.
1043 This is necessary to run most binaries. Linux does not currently
1044 support floating point hardware so you need to say Y here even if
1045 your machine has an FPA or floating point co-processor podule.
1046
1047 You may say N here if you are going to load the Acorn FPEmulator
1048 early in the bootup.
1049
1050config FPE_NWFPE_XP
1051 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001052 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053 help
1054 Say Y to include 80-bit support in the kernel floating-point
1055 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1056 Note that gcc does not generate 80-bit operations by default,
1057 so in most cases this option only enlarges the size of the
1058 floating point emulator without any good reason.
1059
1060 You almost surely want to say N here.
1061
1062config FPE_FASTFPE
1063 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001064 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065 ---help---
1066 Say Y here to include the FAST floating point emulator in the kernel.
1067 This is an experimental much faster emulator which now also has full
1068 precision for the mantissa. It does not support any exceptions.
1069 It is very simple, and approximately 3-6 times faster than NWFPE.
1070
1071 It should be sufficient for most programs. It may be not suitable
1072 for scientific calculations, but you have to check this for yourself.
1073 If you do not feel you need a faster FP emulation you should better
1074 choose NWFPE.
1075
1076config VFP
1077 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001078 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079 help
1080 Say Y to include VFP support code in the kernel. This is needed
1081 if your hardware includes a VFP unit.
1082
1083 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1084 release notes and additional status information.
1085
1086 Say N if your target does not have VFP hardware.
1087
Catalin Marinas25ebee02007-09-25 15:22:24 +01001088config VFPv3
1089 bool
1090 depends on VFP
1091 default y if CPU_V7
1092
Catalin Marinasb5872db2008-01-10 19:16:17 +01001093config NEON
1094 bool "Advanced SIMD (NEON) Extension support"
1095 depends on VFPv3 && CPU_V7
1096 help
1097 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1098 Extension.
1099
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100endmenu
1101
1102menu "Userspace binary formats"
1103
1104source "fs/Kconfig.binfmt"
1105
1106config ARTHUR
1107 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001108 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001109 help
1110 Say Y here to include the kernel code necessary if you want to run
1111 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1112 experimental; if this sounds frightening, say N and sleep in peace.
1113 You can also say M here to compile this support as a module (which
1114 will be called arthur).
1115
1116endmenu
1117
1118menu "Power management options"
1119
Russell Kingeceab4a2005-11-15 11:31:41 +00001120source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121
Johannes Bergf4cb5702007-12-08 02:14:00 +01001122config ARCH_SUSPEND_POSSIBLE
1123 def_bool y
1124
Linus Torvalds1da177e2005-04-16 15:20:36 -07001125endmenu
1126
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001127source "net/Kconfig"
1128
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129menu "Device Drivers"
1130
1131source "drivers/base/Kconfig"
1132
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001133source "drivers/connector/Kconfig"
1134
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001135if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136source "drivers/mtd/Kconfig"
1137endif
1138
1139source "drivers/parport/Kconfig"
1140
1141source "drivers/pnp/Kconfig"
1142
1143source "drivers/block/Kconfig"
1144
Russell King58273e52007-10-12 22:24:09 +01001145# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1146
1147source "drivers/misc/Kconfig"
1148
Linus Torvalds1da177e2005-04-16 15:20:36 -07001149source "drivers/ide/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150
1151source "drivers/scsi/Kconfig"
1152
Martin Michlmayreb370f02006-11-17 00:14:35 +01001153source "drivers/ata/Kconfig"
1154
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155source "drivers/md/Kconfig"
1156
1157source "drivers/message/fusion/Kconfig"
1158
1159source "drivers/ieee1394/Kconfig"
1160
1161source "drivers/message/i2o/Kconfig"
1162
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001163source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001164
1165source "drivers/isdn/Kconfig"
1166
1167# input before char - char/joystick depends on it. As does USB.
1168
1169source "drivers/input/Kconfig"
1170
1171source "drivers/char/Kconfig"
1172
1173source "drivers/i2c/Kconfig"
1174
David Brownell8ae12a02006-01-08 13:34:19 -08001175source "drivers/spi/Kconfig"
1176
David Brownella9c5fff2008-02-04 22:28:17 -08001177source "drivers/gpio/Kconfig"
1178
Alessandro Zummo04916c02006-03-10 22:30:01 +00001179source "drivers/w1/Kconfig"
1180
Russell King58273e52007-10-12 22:24:09 +01001181source "drivers/power/Kconfig"
1182
Jean Delvaread2f9312005-07-02 18:15:49 +02001183source "drivers/hwmon/Kconfig"
1184
Russell King70dfa3f2007-11-07 14:13:35 +00001185source "drivers/watchdog/Kconfig"
1186
Russell King58273e52007-10-12 22:24:09 +01001187source "drivers/ssb/Kconfig"
1188
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189#source "drivers/l3/Kconfig"
1190
Russell Kinga4e137a2005-08-18 10:06:59 +01001191source "drivers/mfd/Kconfig"
1192
Linus Torvalds1da177e2005-04-16 15:20:36 -07001193source "drivers/media/Kconfig"
1194
1195source "drivers/video/Kconfig"
1196
1197source "sound/Kconfig"
1198
Sascha Hauerc2dade52006-12-12 10:32:42 +01001199source "drivers/hid/Kconfig"
1200
Linus Torvalds1da177e2005-04-16 15:20:36 -07001201source "drivers/usb/Kconfig"
1202
1203source "drivers/mmc/Kconfig"
1204
Russell King58273e52007-10-12 22:24:09 +01001205source "drivers/leds/Kconfig"
1206
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001207source "drivers/rtc/Kconfig"
1208
Dan Williams58168152007-01-02 11:10:43 -07001209source "drivers/dma/Kconfig"
1210
Dan Williamsabf07b12008-01-18 23:26:10 +01001211source "drivers/dca/Kconfig"
1212
Hans-Jürgen Koch2dc034a2008-02-19 21:07:19 +01001213source "drivers/uio/Kconfig"
1214
Linus Torvalds1da177e2005-04-16 15:20:36 -07001215endmenu
1216
1217source "fs/Kconfig"
1218
Linus Torvalds1da177e2005-04-16 15:20:36 -07001219source "arch/arm/Kconfig.debug"
1220
1221source "security/Kconfig"
1222
1223source "crypto/Kconfig"
1224
1225source "lib/Kconfig"