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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
Alessandro Zummo12b824f2006-03-27 01:16:35 -080011 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000012 select SYS_SUPPORTS_APM_EMULATION
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 help
14 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000015 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070016 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000017 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070018 Europe. There is an ARM Linux project with a web page at
19 <http://www.arm.linux.org.uk/>.
20
Ralf Baechle75e71532007-02-09 17:08:58 +000021config SYS_SUPPORTS_APM_EMULATION
22 bool
23
David Brownell0a938b92007-03-05 00:30:18 -080024config GENERIC_GPIO
25 bool
26 default n
27
Kevin Hilman746140c2006-09-22 00:16:30 +010028config GENERIC_TIME
29 bool
30 default n
31
Kevin Hilman0567a0c2007-03-13 20:29:24 +010032config GENERIC_CLOCKEVENTS
33 bool
34 default n
35
Linus Torvalds1da177e2005-04-16 15:20:36 -070036config MMU
37 bool
38 default y
39
Al Viro5ea81762007-02-11 15:41:31 +000040config NO_IOPORT
41 bool
42 default n
43
Linus Torvalds1da177e2005-04-16 15:20:36 -070044config EISA
45 bool
46 ---help---
47 The Extended Industry Standard Architecture (EISA) bus was
48 developed as an open alternative to the IBM MicroChannel bus.
49
50 The EISA bus provided some of the features of the IBM MicroChannel
51 bus while maintaining backward compatibility with cards made for
52 the older ISA bus. The EISA bus saw limited use between 1988 and
53 1995 when it was made obsolete by the PCI bus.
54
55 Say Y here if you are building a kernel for an EISA-based machine.
56
57 Otherwise, say N.
58
59config SBUS
60 bool
61
62config MCA
63 bool
64 help
65 MicroChannel Architecture is found in some IBM PS/2 machines and
66 laptops. It is a bus system similar to PCI or ISA. See
67 <file:Documentation/mca.txt> (and especially the web page given
68 there) before attempting to build an MCA bus kernel.
69
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010070config GENERIC_HARDIRQS
71 bool
72 default y
73
Russell Kingf16fb1e2007-04-28 09:59:37 +010074config STACKTRACE_SUPPORT
75 bool
76 default y
77
78config LOCKDEP_SUPPORT
79 bool
80 default y
81
Russell King7ad1bcb2006-08-27 12:07:02 +010082config TRACE_IRQFLAGS_SUPPORT
83 bool
84 default y
85
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010086config HARDIRQS_SW_RESEND
87 bool
88 default y
89
90config GENERIC_IRQ_PROBE
91 bool
92 default y
93
Nick Piggin95c354f2008-01-30 13:31:20 +010094config GENERIC_LOCKBREAK
95 bool
96 default y
97 depends on SMP && PREEMPT
98
Linus Torvalds1da177e2005-04-16 15:20:36 -070099config RWSEM_GENERIC_SPINLOCK
100 bool
101 default y
102
103config RWSEM_XCHGADD_ALGORITHM
104 bool
105
David Howellsf0d1b0b2006-12-08 02:37:49 -0800106config ARCH_HAS_ILOG2_U32
107 bool
108 default n
109
110config ARCH_HAS_ILOG2_U64
111 bool
112 default n
113
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800114config GENERIC_HWEIGHT
115 bool
116 default y
117
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118config GENERIC_CALIBRATE_DELAY
119 bool
120 default y
121
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100122config ARCH_MAY_HAVE_PC_FDC
123 bool
124
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800125config ZONE_DMA
126 bool
127 default y
128
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129config GENERIC_ISA_DMA
130 bool
131
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132config FIQ
133 bool
134
Al Viro034d2f52005-12-19 16:27:59 -0500135config ARCH_MTD_XIP
136 bool
137
Hyok S. Choic760fc12006-03-27 15:18:50 +0100138config VECTORS_BASE
139 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900140 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100141 default DRAM_BASE if REMAP_VECTORS_TO_RAM
142 default 0x00000000
143 help
144 The base address of exception vectors.
145
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146source "init/Kconfig"
147
148menu "System Type"
149
150choice
151 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000152 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100154config ARCH_AAEC2000
155 bool "Agilent AAEC-2000 based"
156 select ARM_AMBA
157 help
158 This enables support for systems based on the Agilent AAEC-2000
159
160config ARCH_INTEGRATOR
161 bool "ARM Ltd. Integrator family"
162 select ARM_AMBA
163 select ICST525
164 help
165 Support for ARM's Integrator platform.
166
167config ARCH_REALVIEW
168 bool "ARM Ltd. RealView family"
169 select ARM_AMBA
170 select ICST307
171 help
172 This enables support for ARM Ltd RealView boards.
173
174config ARCH_VERSATILE
175 bool "ARM Ltd. Versatile family"
176 select ARM_AMBA
177 select ARM_VIC
178 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100179 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100180 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100181 help
182 This enables support for ARM Ltd Versatile board.
183
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100184config ARCH_AT91
185 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800186 select GENERIC_GPIO
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100187 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100188 This enables support for systems based on the Atmel AT91RM9200,
189 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100190
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100192 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100194 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000195 select NO_IOPORT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000196 help
197 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198
199config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100200 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000201 help
202 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203
204config ARCH_CO285
205 bool "Co-EBSA285"
206 select FOOTBRIDGE
207 select FOOTBRIDGE_ADDIN
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000208 help
209 Support for Intel's EBSA285 companion chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210
211config ARCH_EBSA110
212 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100213 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000214 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215 help
216 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000217 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 Ethernet interface, two PCMCIA sockets, two serial ports and a
219 parallel port.
220
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000221config ARCH_EP93XX
222 bool "EP93xx-based"
223 select ARM_AMBA
224 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100225 select GENERIC_GPIO
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000226 help
227 This enables support for the Cirrus EP93xx series of CPUs.
228
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229config ARCH_FOOTBRIDGE
230 bool "FootBridge"
231 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000232 help
233 Support for systems based on the DC21285 companion chip
234 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100236config ARCH_NETX
237 bool "Hilscher NetX based"
238 select ARM_VIC
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000239 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100240 This enables support for systems based on the Hilscher NetX Soc
241
242config ARCH_H720X
243 bool "Hynix HMS720x-based"
244 select ISA_DMA_API
245 help
246 This enables support for systems based on the Hynix HMS720x
247
248config ARCH_IMX
249 bool "IMX"
Pavel Pisab3e6a502007-05-12 14:31:17 +0100250 select GENERIC_GPIO
Pavel Pisa89bba432007-05-13 17:37:33 +0100251 select GENERIC_TIME
252 select GENERIC_CLOCKEVENTS
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100253 help
254 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255
Russell King3b938be2007-05-12 11:25:44 +0100256config ARCH_IOP13XX
257 bool "IOP13xx-based"
258 depends on MMU
259 select PLAT_IOP
260 select PCI
261 select ARCH_SUPPORTS_MSI
262 help
263 Support for Intel's IOP13XX (XScale) family of processors.
264
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100265config ARCH_IOP32X
266 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100267 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100268 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100269 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000270 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100271 Support for Intel's 80219 and IOP32X (XScale) family of
272 processors.
273
274config ARCH_IOP33X
275 bool "IOP33x-based"
276 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100277 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100278 select PCI
279 help
280 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281
Russell King3b938be2007-05-12 11:25:44 +0100282config ARCH_IXP23XX
283 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100284 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100285 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100286 help
Russell King3b938be2007-05-12 11:25:44 +0100287 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288
289config ARCH_IXP2000
290 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100291 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100292 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000293 help
294 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295
Russell King3b938be2007-05-12 11:25:44 +0100296config ARCH_IXP4XX
297 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100298 depends on MMU
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100299 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100300 select GENERIC_TIME
301 select GENERIC_CLOCKEVENTS
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100302 help
Russell King3b938be2007-05-12 11:25:44 +0100303 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100304
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305config ARCH_L7200
306 bool "LinkUp-L7200"
307 select FIQ
308 help
309 Say Y here if you intend to run this kernel on a LinkUp Systems
310 L7200 Software Development Board which uses an ARM720T processor.
311 Information on this board can be obtained at:
312
313 <http://www.linkupsys.com/>
314
315 If you have any questions or comments about the Linux kernel port
316 to this board, send e-mail to <sjhill@cotw.com>.
317
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100318config ARCH_KS8695
319 bool "Micrel/Kendin KS8695"
Andrew Victor8a87a992007-05-14 14:30:15 +0100320 select GENERIC_GPIO
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100321 help
322 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
323 System-on-Chip devices.
324
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100325config ARCH_NS9XXX
326 bool "NetSilicon NS9xxx"
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100327 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100328 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100329 select GENERIC_CLOCKEVENTS
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100330 help
331 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
332 System.
333
334 <http://www.digi.com/products/microprocessors/index.jsp>
335
Quinn Jensen52c543f2007-07-09 22:06:53 +0100336config ARCH_MXC
337 bool "Freescale MXC/iMX-based"
338 select ARCH_MTD_XIP
339 help
340 Support for Freescale MXC/iMX-based family of processors
341
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400342config ARCH_ORION
343 bool "Marvell Orion"
344 depends on MMU
Tzachi Perelstein038ee082007-10-23 15:14:42 -0400345 select PCI
Tzachi Perelstein01af72e2007-10-23 15:14:42 -0400346 select GENERIC_GPIO
Tzachi Perelstein51cbff12007-10-23 15:14:42 -0400347 select GENERIC_TIME
348 select GENERIC_CLOCKEVENTS
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400349 help
350 Support for Marvell Orion System on Chip family.
351
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100352config ARCH_PNX4008
353 bool "Philips Nexperia PNX4008 Mobile"
354 help
355 This enables support for Philips PNX4008 mobile platform.
356
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700358 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100359 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500360 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800361 select GENERIC_GPIO
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100362 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100363 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000364 select TICK_ONESHOT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000365 help
eric miao2c8086a2007-09-11 19:13:17 -0700366 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367
368config ARCH_RPC
369 bool "RiscPC"
370 select ARCH_ACORN
371 select FIQ
372 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100373 select ARCH_MAY_HAVE_PC_FDC
Russell King065909b2006-01-04 15:44:16 +0000374 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000375 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 help
377 On the Acorn Risc-PC, Linux can support the internal IDE disk and
378 CD-ROM interface, serial and parallel port, and the floppy drive.
379
380config ARCH_SA1100
381 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100382 select ISA
Russell King3cd9e192005-06-25 19:29:34 +0100383 select ARCH_DISCONTIGMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500384 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800385 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000386 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000387 help
388 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389
390config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100391 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800392 select GENERIC_GPIO
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393 help
394 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
395 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000396 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397
398config ARCH_SHARK
399 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100400 select ISA
401 select ISA_DMA
402 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000403 help
404 Support for the StrongARM based Digital DNARD machine, also known
405 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406
407config ARCH_LH7A40X
408 bool "Sharp LH7A40X"
409 help
410 Say Y here for systems based on one of the Sharp LH7A40X
411 System on a Chip processors. These CPUs include an ARM922T
412 core with a wide array of integrated devices for
413 hand-held and low-power applications.
414
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100415config ARCH_DAVINCI
416 bool "TI DaVinci"
417 select GENERIC_TIME
418 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100419 select GENERIC_GPIO
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100420 help
421 Support for TI's DaVinci platform.
422
Russell King3b938be2007-05-12 11:25:44 +0100423config ARCH_OMAP
424 bool "TI OMAP"
425 select GENERIC_GPIO
426 select GENERIC_TIME
427 help
428 Support for TI's OMAP platform (OMAP1 and OMAP2).
429
Brian Swetland30421022007-11-26 04:11:43 -0800430config ARCH_MSM7X00A
431 bool "Qualcomm MSM7X00A"
432 select GENERIC_TIME
433 select GENERIC_CLOCKEVENTS
434 help
435 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
436 apps processor of the MSM7X00A and depends on a shared memory
437 interface to the ARM9 modem processor which runs the baseband stack
438 and controls some vital subsystems (clock and power control, etc).
439 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
440
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441endchoice
442
443source "arch/arm/mach-clps711x/Kconfig"
444
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000445source "arch/arm/mach-ep93xx/Kconfig"
446
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447source "arch/arm/mach-footbridge/Kconfig"
448
449source "arch/arm/mach-integrator/Kconfig"
450
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100451source "arch/arm/mach-iop32x/Kconfig"
452
453source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454
Dan Williams285f5fa2006-12-07 02:59:39 +0100455source "arch/arm/mach-iop13xx/Kconfig"
456
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457source "arch/arm/mach-ixp4xx/Kconfig"
458
459source "arch/arm/mach-ixp2000/Kconfig"
460
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100461source "arch/arm/mach-ixp23xx/Kconfig"
462
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463source "arch/arm/mach-pxa/Kconfig"
464
465source "arch/arm/mach-sa1100/Kconfig"
466
Tony Lindgrend48af152005-07-10 19:58:17 +0100467source "arch/arm/plat-omap/Kconfig"
468
469source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470
Tony Lindgren1dbae812005-11-10 14:26:51 +0000471source "arch/arm/mach-omap2/Kconfig"
472
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400473source "arch/arm/mach-orion/Kconfig"
474
Ben Dooksa21765a2007-02-11 18:31:01 +0100475source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100476source "arch/arm/plat-s3c/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100477
478if ARCH_S3C2410
479source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100481source "arch/arm/mach-s3c2412/Kconfig"
482source "arch/arm/mach-s3c2440/Kconfig"
483source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100484source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100485endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486
487source "arch/arm/mach-lh7a40x/Kconfig"
488
489source "arch/arm/mach-imx/Kconfig"
490
491source "arch/arm/mach-h720x/Kconfig"
492
493source "arch/arm/mach-versatile/Kconfig"
494
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100495source "arch/arm/mach-aaec2000/Kconfig"
496
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000497source "arch/arm/mach-realview/Kconfig"
498
Andrew Victor9d041262007-02-05 11:42:07 +0100499source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000500
Quinn Jensen52c543f2007-07-09 22:06:53 +0100501source "arch/arm/plat-mxc/Kconfig"
502
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100503source "arch/arm/mach-netx/Kconfig"
504
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100505source "arch/arm/mach-ns9xxx/Kconfig"
506
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100507source "arch/arm/mach-davinci/Kconfig"
508
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100509source "arch/arm/mach-ks8695/Kconfig"
510
Brian Swetland9e73c842007-11-26 04:12:13 -0800511source "arch/arm/mach-msm/Kconfig"
512
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513# Definitions to make life easier
514config ARCH_ACORN
515 bool
516
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100517config PLAT_IOP
518 bool
519
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520source arch/arm/mm/Kconfig
521
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100522config IWMMXT
523 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100524 depends on CPU_XSCALE || CPU_XSC3
eric miao2c8086a2007-09-11 19:13:17 -0700525 default y if PXA27x || PXA3xx
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100526 help
527 Enable support for iWMMXt context switching at run time if
528 running on a CPU that supports it.
529
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
531config XSCALE_PMU
532 bool
533 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
534 default y
535
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100536if !MMU
537source "arch/arm/Kconfig-nommu"
538endif
539
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540endmenu
541
542source "arch/arm/common/Kconfig"
543
544config FORCE_MAX_ZONEORDER
545 int
546 depends on SA1111
547 default "9"
548
549menu "Bus support"
550
551config ARM_AMBA
552 bool
553
554config ISA
555 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556 help
557 Find out whether you have ISA slots on your motherboard. ISA is the
558 name of a bus system, i.e. the way the CPU talks to the other stuff
559 inside your box. Other bus systems are PCI, EISA, MicroChannel
560 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
561 newer boards don't support it. If you have ISA, say Y, otherwise N.
562
Russell King065909b2006-01-04 15:44:16 +0000563# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564config ISA_DMA
565 bool
Russell King065909b2006-01-04 15:44:16 +0000566 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567
Russell King065909b2006-01-04 15:44:16 +0000568# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100569config ISA_DMA_API
570 bool
Al Viro5cae8412005-05-04 05:39:22 +0100571
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100573 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574 help
575 Find out whether you have a PCI motherboard. PCI is the name of a
576 bus system, i.e. the way the CPU talks to the other stuff inside
577 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
578 VESA. If you have PCI, say Y, otherwise N.
579
Matthew Wilcox36e23592007-07-10 10:54:40 -0600580config PCI_SYSCALL
581 def_bool PCI
582
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583# Select the host bridge type
584config PCI_HOST_VIA82C505
585 bool
586 depends on PCI && ARCH_SHARK
587 default y
588
Mike Rapoporta0113a92007-11-25 08:55:34 +0100589config PCI_HOST_ITE8152
590 bool
591 depends on PCI && MACH_ARMCORE
592 default y
593 select DMABOUNCE
594
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595source "drivers/pci/Kconfig"
596
597source "drivers/pcmcia/Kconfig"
598
599endmenu
600
601menu "Kernel Features"
602
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100603source "kernel/time/Kconfig"
604
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605config SMP
606 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell Kingf6db4492005-11-07 21:30:21 +0000607 depends on EXPERIMENTAL && REALVIEW_MPCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608 help
609 This enables support for systems with more than one CPU. If you have
610 a system with only one CPU, like most personal computers, say N. If
611 you have a system with more than one CPU, say Y.
612
613 If you say N here, the kernel will run on single and multiprocessor
614 machines, but will use only one CPU of a multiprocessor machine. If
615 you say Y here, the kernel will run on many, but not all, single
616 processor machines. On a single processor machine, the kernel will
617 run faster if you say N here.
618
Adrian Bunk03502fa2008-02-03 15:50:21 +0200619 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
621 <http://www.linuxdoc.org/docs.html#howto>.
622
623 If you don't know what to do here, say N.
624
625config NR_CPUS
626 int "Maximum number of CPUs (2-32)"
627 range 2 32
628 depends on SMP
629 default "4"
630
Russell Kinga054a812005-11-02 22:24:33 +0000631config HOTPLUG_CPU
632 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
633 depends on SMP && HOTPLUG && EXPERIMENTAL
634 help
635 Say Y here to experiment with turning CPUs off and on. CPUs
636 can be controlled through /sys/devices/system/cpu.
637
Russell King37ee16a2005-11-08 19:08:05 +0000638config LOCAL_TIMERS
639 bool "Use local timer interrupts"
Russell King2a98beb2005-11-09 10:50:29 +0000640 depends on SMP && REALVIEW_MPCORE
Russell King37ee16a2005-11-08 19:08:05 +0000641 default y
642 help
643 Enable support for local timers on SMP platforms, rather then the
644 legacy IPI broadcast method. Local timers allows the system
645 accounting to be spread across the timer interval, preventing a
646 "thundering herd" at every timer tick.
647
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648config PREEMPT
649 bool "Preemptible Kernel (EXPERIMENTAL)"
650 depends on EXPERIMENTAL
651 help
652 This option reduces the latency of the kernel when reacting to
653 real-time or interactive events by allowing a low priority process to
654 be preempted even if it is in kernel mode executing a system call.
655 This allows applications to run more reliably even when the system is
656 under load.
657
658 Say Y here if you are building a kernel for a desktop, embedded
659 or real-time system. Say N if you are unsure.
660
Russell King8749af62005-06-25 19:39:45 +0100661config NO_IDLE_HZ
662 bool "Dynamic tick timer"
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100663 depends on !GENERIC_CLOCKEVENTS
Russell King8749af62005-06-25 19:39:45 +0100664 help
665 Select this option if you want to disable continuous timer ticks
666 and have them programmed to occur as required. This option saves
667 power as the system can remain in idle state for longer.
668
669 By default dynamic tick is disabled during the boot, and can be
670 manually enabled with:
671
672 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
673
674 Alternatively, if you want dynamic tick automatically enabled
675 during boot, pass "dyntick=enable" via the kernel command string.
676
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100677 Please note that dynamic tick may affect the accuracy of
678 timekeeping on some platforms depending on the implementation.
Nicolas Pitre569d2c32005-09-01 12:48:48 +0100679 Currently at least OMAP, PXA2xx and SA11x0 platforms are known
680 to have accurate timekeeping with dynamic tick.
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100681
Russell Kingf8065812006-03-02 22:41:59 +0000682config HZ
683 int
684 default 128 if ARCH_L7200
685 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000686 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100687 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000688 default 100
689
Nicolas Pitre704bdda02006-01-14 16:33:50 +0000690config AEABI
691 bool "Use the ARM EABI to compile the kernel"
692 help
693 This option allows for the kernel to be compiled using the latest
694 ARM ABI (aka EABI). This is only useful if you are using a user
695 space environment that is also compiled with EABI.
696
697 Since there are major incompatibilities between the legacy ABI and
698 EABI, especially with regard to structure member alignment, this
699 option also changes the kernel syscall calling convention to
700 disambiguate both ABIs and allow for backward compatibility support
701 (selected with CONFIG_OABI_COMPAT).
702
703 To use this you need GCC version 4.0.0 or later.
704
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000705config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000706 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000707 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000708 default y
709 help
710 This option preserves the old syscall interface along with the
711 new (ARM EABI) one. It also provides a compatibility layer to
712 intercept syscalls that have structure arguments which layout
713 in memory differs between the legacy ABI and the new ARM EABI
714 (only for non "thumb" binaries). This option adds a tiny
715 overhead to all syscalls and produces a slightly larger kernel.
716 If you know you'll be using only pure EABI user space then you
717 can say N here. If this option is not selected and you attempt
718 to execute a legacy ABI binary then the result will be
719 UNPREDICTABLE (in fact it can be predicted that it won't work
720 at all). If in doubt say Y.
721
Dave Hansen3f22ab22005-06-23 00:07:43 -0700722config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100724 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725 help
726 Say Y to support efficient handling of discontiguous physical memory,
727 for architectures which are either NUMA (Non-Uniform Memory Access)
728 or have huge holes in the physical address space for other reasons.
729 See <file:Documentation/vm/numa> for more.
730
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700731config NODES_SHIFT
732 int
733 default "4" if ARCH_LH7A40X
734 default "2"
735 depends on NEED_MULTIPLE_NODES
736
Dave Hansen3f22ab22005-06-23 00:07:43 -0700737source "mm/Kconfig"
738
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739config LEDS
740 bool "Timer and CPU usage LEDs"
741 depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
742 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
743 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
744 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000745 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100746 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400747 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748 help
749 If you say Y here, the LEDs on your machine will be used
750 to provide useful information about your current system status.
751
752 If you are compiling a kernel for a NetWinder or EBSA-285, you will
753 be able to select which LEDs are active using the options below. If
754 you are compiling a kernel for the EBSA-110 or the LART however, the
755 red LED will simply flash regularly to indicate that the system is
756 still functional. It is safe to say Y here if you have a CATS
757 system, but the driver will do nothing.
758
759config LEDS_TIMER
760 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700761 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
762 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100764 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765 default y if ARCH_EBSA110
766 help
767 If you say Y here, one of the system LEDs (the green one on the
768 NetWinder, the amber one on the EBSA285, or the red one on the LART)
769 will flash regularly to indicate that the system is still
770 operational. This is mainly useful to kernel hackers who are
771 debugging unstable kernels.
772
773 The LART uses the same LED for both Timer LED and CPU usage LED
774 functions. You may choose to use both, but the Timer LED function
775 will overrule the CPU usage LED.
776
777config LEDS_CPU
778 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700779 !ARCH_OMAP) \
780 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
781 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700782 depends on LEDS
783 help
784 If you say Y here, the red LED will be used to give a good real
785 time indication of CPU usage, by lighting whenever the idle task
786 is not currently executing.
787
788 The LART uses the same LED for both Timer LED and CPU usage LED
789 functions. You may choose to use both, but the Timer LED function
790 will overrule the CPU usage LED.
791
792config ALIGNMENT_TRAP
793 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900794 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700795 default y if !ARCH_EBSA110
796 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200797 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
799 address divisible by 4. On 32-bit ARM processors, these non-aligned
800 fetch/store instructions will be emulated in software if you say
801 here, which has a severe performance impact. This is necessary for
802 correct operation of some network protocols. With an IP-only
803 configuration it is safe to say N, otherwise say Y.
804
805endmenu
806
807menu "Boot options"
808
809# Compressed boot loader in ROM. Yes, we really want to ask about
810# TEXT and BSS so we preserve their values in the config files.
811config ZBOOT_ROM_TEXT
812 hex "Compressed ROM boot loader base address"
813 default "0"
814 help
815 The physical address at which the ROM-able zImage is to be
816 placed in the target. Platforms which normally make use of
817 ROM-able zImage formats normally set this to a suitable
818 value in their defconfig file.
819
820 If ZBOOT_ROM is not enabled, this has no effect.
821
822config ZBOOT_ROM_BSS
823 hex "Compressed ROM boot loader BSS address"
824 default "0"
825 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100826 The base address of an area of read/write memory in the target
827 for the ROM-able zImage which must be available while the
828 decompressor is running. It must be large enough to hold the
829 entire decompressed kernel plus an additional 128 KiB.
830 Platforms which normally make use of ROM-able zImage formats
831 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700832
833 If ZBOOT_ROM is not enabled, this has no effect.
834
835config ZBOOT_ROM
836 bool "Compressed boot loader in ROM/flash"
837 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
838 help
839 Say Y here if you intend to execute your compressed kernel image
840 (zImage) directly from ROM or flash. If unsure, say N.
841
842config CMDLINE
843 string "Default kernel command string"
844 default ""
845 help
846 On some architectures (EBSA110 and CATS), there is currently no way
847 for the boot loader to pass arguments to the kernel. For these
848 architectures, you should supply some command-line options at build
849 time by entering them here. As a minimum, you should specify the
850 memory size and the root device (e.g., mem=64M root=/dev/nfs).
851
852config XIP_KERNEL
853 bool "Kernel Execute-In-Place from ROM"
854 depends on !ZBOOT_ROM
855 help
856 Execute-In-Place allows the kernel to run from non-volatile storage
857 directly addressable by the CPU, such as NOR flash. This saves RAM
858 space since the text section of the kernel is not loaded from flash
859 to RAM. Read-write sections, such as the data section and stack,
860 are still copied to RAM. The XIP kernel is not compressed since
861 it has to run directly from flash, so it will take more space to
862 store it. The flash address used to link the kernel object files,
863 and for storing it, is configuration dependent. Therefore, if you
864 say Y here, you must know the proper physical address where to
865 store the kernel image depending on your own flash memory usage.
866
867 Also note that the make target becomes "make xipImage" rather than
868 "make zImage" or "make Image". The final kernel binary to put in
869 ROM memory will be arch/arm/boot/xipImage.
870
871 If unsure, say N.
872
873config XIP_PHYS_ADDR
874 hex "XIP Kernel Physical Location"
875 depends on XIP_KERNEL
876 default "0x00080000"
877 help
878 This is the physical address in your flash memory the kernel will
879 be linked for and stored to. This address is dependent on your
880 own flash usage.
881
Richard Purdiec587e4a2007-02-06 21:29:00 +0100882config KEXEC
883 bool "Kexec system call (EXPERIMENTAL)"
884 depends on EXPERIMENTAL
885 help
886 kexec is a system call that implements the ability to shutdown your
887 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200888 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +0100889 you can start any kernel with it, not just Linux.
890
891 It is an ongoing process to be certain the hardware in a machine
892 is properly shutdown, so do not be surprised if this code does not
893 initially work for you. It may help to enable device hotplugging
894 support.
895
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896endmenu
897
Russell King9e2697f2007-12-14 13:30:14 +0000898if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899
900menu "CPU Frequency scaling"
901
902source "drivers/cpufreq/Kconfig"
903
904config CPU_FREQ_SA1100
905 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +0100906 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 -0700907 default y
908
909config CPU_FREQ_SA1110
910 bool
911 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
912 default y
913
914config CPU_FREQ_INTEGRATOR
915 tristate "CPUfreq driver for ARM Integrator CPUs"
916 depends on ARCH_INTEGRATOR && CPU_FREQ
917 default y
918 help
919 This enables the CPUfreq driver for ARM Integrator CPUs.
920
921 For details, take a look at <file:Documentation/cpu-freq>.
922
923 If in doubt, say Y.
924
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +0100925config CPU_FREQ_IMX
926 tristate "CPUfreq driver for i.MX CPUs"
927 depends on ARCH_IMX && CPU_FREQ
928 default n
929 help
930 This enables the CPUfreq driver for i.MX CPUs.
931
932 If in doubt, say N.
933
Russell King9e2697f2007-12-14 13:30:14 +0000934config CPU_FREQ_PXA
935 bool
936 depends on CPU_FREQ && ARCH_PXA && PXA25x
937 default y
938 select CPU_FREQ_DEFAULT_GOV_USERSPACE
939
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940endmenu
941
942endif
943
944menu "Floating point emulation"
945
946comment "At least one emulation must be selected"
947
948config FPE_NWFPE
949 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +0000950 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951 ---help---
952 Say Y to include the NWFPE floating point emulator in the kernel.
953 This is necessary to run most binaries. Linux does not currently
954 support floating point hardware so you need to say Y here even if
955 your machine has an FPA or floating point co-processor podule.
956
957 You may say N here if you are going to load the Acorn FPEmulator
958 early in the bootup.
959
960config FPE_NWFPE_XP
961 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +0000962 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700963 help
964 Say Y to include 80-bit support in the kernel floating-point
965 emulator. Otherwise, only 32 and 64-bit support is compiled in.
966 Note that gcc does not generate 80-bit operations by default,
967 so in most cases this option only enlarges the size of the
968 floating point emulator without any good reason.
969
970 You almost surely want to say N here.
971
972config FPE_FASTFPE
973 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +0000974 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975 ---help---
976 Say Y here to include the FAST floating point emulator in the kernel.
977 This is an experimental much faster emulator which now also has full
978 precision for the mantissa. It does not support any exceptions.
979 It is very simple, and approximately 3-6 times faster than NWFPE.
980
981 It should be sufficient for most programs. It may be not suitable
982 for scientific calculations, but you have to check this for yourself.
983 If you do not feel you need a faster FP emulation you should better
984 choose NWFPE.
985
986config VFP
987 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +0000988 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989 help
990 Say Y to include VFP support code in the kernel. This is needed
991 if your hardware includes a VFP unit.
992
993 Please see <file:Documentation/arm/VFP/release-notes.txt> for
994 release notes and additional status information.
995
996 Say N if your target does not have VFP hardware.
997
Catalin Marinas25ebee02007-09-25 15:22:24 +0100998config VFPv3
999 bool
1000 depends on VFP
1001 default y if CPU_V7
1002
Catalin Marinasb5872db2008-01-10 19:16:17 +01001003config NEON
1004 bool "Advanced SIMD (NEON) Extension support"
1005 depends on VFPv3 && CPU_V7
1006 help
1007 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1008 Extension.
1009
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010endmenu
1011
1012menu "Userspace binary formats"
1013
1014source "fs/Kconfig.binfmt"
1015
1016config ARTHUR
1017 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001018 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001019 help
1020 Say Y here to include the kernel code necessary if you want to run
1021 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1022 experimental; if this sounds frightening, say N and sleep in peace.
1023 You can also say M here to compile this support as a module (which
1024 will be called arthur).
1025
1026endmenu
1027
1028menu "Power management options"
1029
Russell Kingeceab4a2005-11-15 11:31:41 +00001030source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031
Johannes Bergf4cb5702007-12-08 02:14:00 +01001032config ARCH_SUSPEND_POSSIBLE
1033 def_bool y
1034
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035endmenu
1036
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001037source "net/Kconfig"
1038
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039menu "Device Drivers"
1040
1041source "drivers/base/Kconfig"
1042
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001043source "drivers/connector/Kconfig"
1044
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001045if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001046source "drivers/mtd/Kconfig"
1047endif
1048
1049source "drivers/parport/Kconfig"
1050
1051source "drivers/pnp/Kconfig"
1052
1053source "drivers/block/Kconfig"
1054
Russell King58273e52007-10-12 22:24:09 +01001055# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1056
1057source "drivers/misc/Kconfig"
1058
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001059if PCMCIA || ARCH_CLPS7500 || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX \
David Brownellbb011b82005-06-12 23:26:05 +01001060 || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001061 || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \
1062 || ARCH_IXP23XX
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063source "drivers/ide/Kconfig"
1064endif
1065
1066source "drivers/scsi/Kconfig"
1067
Martin Michlmayreb370f02006-11-17 00:14:35 +01001068source "drivers/ata/Kconfig"
1069
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070source "drivers/md/Kconfig"
1071
1072source "drivers/message/fusion/Kconfig"
1073
1074source "drivers/ieee1394/Kconfig"
1075
1076source "drivers/message/i2o/Kconfig"
1077
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001078source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079
1080source "drivers/isdn/Kconfig"
1081
1082# input before char - char/joystick depends on it. As does USB.
1083
1084source "drivers/input/Kconfig"
1085
1086source "drivers/char/Kconfig"
1087
1088source "drivers/i2c/Kconfig"
1089
David Brownell8ae12a02006-01-08 13:34:19 -08001090source "drivers/spi/Kconfig"
1091
Alessandro Zummo04916c02006-03-10 22:30:01 +00001092source "drivers/w1/Kconfig"
1093
Russell King58273e52007-10-12 22:24:09 +01001094source "drivers/power/Kconfig"
1095
Jean Delvaread2f9312005-07-02 18:15:49 +02001096source "drivers/hwmon/Kconfig"
1097
Russell King70dfa3f2007-11-07 14:13:35 +00001098source "drivers/watchdog/Kconfig"
1099
Russell King58273e52007-10-12 22:24:09 +01001100source "drivers/ssb/Kconfig"
1101
Linus Torvalds1da177e2005-04-16 15:20:36 -07001102#source "drivers/l3/Kconfig"
1103
Russell Kinga4e137a2005-08-18 10:06:59 +01001104source "drivers/mfd/Kconfig"
1105
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106source "drivers/media/Kconfig"
1107
1108source "drivers/video/Kconfig"
1109
1110source "sound/Kconfig"
1111
Sascha Hauerc2dade52006-12-12 10:32:42 +01001112source "drivers/hid/Kconfig"
1113
Linus Torvalds1da177e2005-04-16 15:20:36 -07001114source "drivers/usb/Kconfig"
1115
1116source "drivers/mmc/Kconfig"
1117
Russell King58273e52007-10-12 22:24:09 +01001118source "drivers/leds/Kconfig"
1119
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001120source "drivers/rtc/Kconfig"
1121
Dan Williams58168152007-01-02 11:10:43 -07001122source "drivers/dma/Kconfig"
1123
Dan Williamsabf07b12008-01-18 23:26:10 +01001124source "drivers/dca/Kconfig"
1125
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126endmenu
1127
1128source "fs/Kconfig"
1129
Linus Torvalds38ad9ae2008-01-15 09:23:51 -08001130source "arch/arm/Kconfig.instrumentation"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131
1132source "arch/arm/Kconfig.debug"
1133
1134source "security/Kconfig"
1135
1136source "crypto/Kconfig"
1137
1138source "lib/Kconfig"