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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
Arthur Othieno12c62c22005-09-10 00:26:22 -0700619 See also the <file:Documentation/smp.txt>,
620 <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
622 <http://www.linuxdoc.org/docs.html#howto>.
623
624 If you don't know what to do here, say N.
625
626config NR_CPUS
627 int "Maximum number of CPUs (2-32)"
628 range 2 32
629 depends on SMP
630 default "4"
631
Russell Kinga054a812005-11-02 22:24:33 +0000632config HOTPLUG_CPU
633 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
634 depends on SMP && HOTPLUG && EXPERIMENTAL
635 help
636 Say Y here to experiment with turning CPUs off and on. CPUs
637 can be controlled through /sys/devices/system/cpu.
638
Russell King37ee16a2005-11-08 19:08:05 +0000639config LOCAL_TIMERS
640 bool "Use local timer interrupts"
Russell King2a98beb2005-11-09 10:50:29 +0000641 depends on SMP && REALVIEW_MPCORE
Russell King37ee16a2005-11-08 19:08:05 +0000642 default y
643 help
644 Enable support for local timers on SMP platforms, rather then the
645 legacy IPI broadcast method. Local timers allows the system
646 accounting to be spread across the timer interval, preventing a
647 "thundering herd" at every timer tick.
648
Linus Torvalds1da177e2005-04-16 15:20:36 -0700649config PREEMPT
650 bool "Preemptible Kernel (EXPERIMENTAL)"
651 depends on EXPERIMENTAL
652 help
653 This option reduces the latency of the kernel when reacting to
654 real-time or interactive events by allowing a low priority process to
655 be preempted even if it is in kernel mode executing a system call.
656 This allows applications to run more reliably even when the system is
657 under load.
658
659 Say Y here if you are building a kernel for a desktop, embedded
660 or real-time system. Say N if you are unsure.
661
Russell King8749af62005-06-25 19:39:45 +0100662config NO_IDLE_HZ
663 bool "Dynamic tick timer"
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100664 depends on !GENERIC_CLOCKEVENTS
Russell King8749af62005-06-25 19:39:45 +0100665 help
666 Select this option if you want to disable continuous timer ticks
667 and have them programmed to occur as required. This option saves
668 power as the system can remain in idle state for longer.
669
670 By default dynamic tick is disabled during the boot, and can be
671 manually enabled with:
672
673 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
674
675 Alternatively, if you want dynamic tick automatically enabled
676 during boot, pass "dyntick=enable" via the kernel command string.
677
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100678 Please note that dynamic tick may affect the accuracy of
679 timekeeping on some platforms depending on the implementation.
Nicolas Pitre569d2c32005-09-01 12:48:48 +0100680 Currently at least OMAP, PXA2xx and SA11x0 platforms are known
681 to have accurate timekeeping with dynamic tick.
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100682
Russell Kingf8065812006-03-02 22:41:59 +0000683config HZ
684 int
685 default 128 if ARCH_L7200
686 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000687 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +0100688 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +0000689 default 100
690
Nicolas Pitre704bdda02006-01-14 16:33:50 +0000691config AEABI
692 bool "Use the ARM EABI to compile the kernel"
693 help
694 This option allows for the kernel to be compiled using the latest
695 ARM ABI (aka EABI). This is only useful if you are using a user
696 space environment that is also compiled with EABI.
697
698 Since there are major incompatibilities between the legacy ABI and
699 EABI, especially with regard to structure member alignment, this
700 option also changes the kernel syscall calling convention to
701 disambiguate both ABIs and allow for backward compatibility support
702 (selected with CONFIG_OABI_COMPAT).
703
704 To use this you need GCC version 4.0.0 or later.
705
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000706config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000707 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000708 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000709 default y
710 help
711 This option preserves the old syscall interface along with the
712 new (ARM EABI) one. It also provides a compatibility layer to
713 intercept syscalls that have structure arguments which layout
714 in memory differs between the legacy ABI and the new ARM EABI
715 (only for non "thumb" binaries). This option adds a tiny
716 overhead to all syscalls and produces a slightly larger kernel.
717 If you know you'll be using only pure EABI user space then you
718 can say N here. If this option is not selected and you attempt
719 to execute a legacy ABI binary then the result will be
720 UNPREDICTABLE (in fact it can be predicted that it won't work
721 at all). If in doubt say Y.
722
Dave Hansen3f22ab22005-06-23 00:07:43 -0700723config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100725 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726 help
727 Say Y to support efficient handling of discontiguous physical memory,
728 for architectures which are either NUMA (Non-Uniform Memory Access)
729 or have huge holes in the physical address space for other reasons.
730 See <file:Documentation/vm/numa> for more.
731
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700732config NODES_SHIFT
733 int
734 default "4" if ARCH_LH7A40X
735 default "2"
736 depends on NEED_MULTIPLE_NODES
737
Dave Hansen3f22ab22005-06-23 00:07:43 -0700738source "mm/Kconfig"
739
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740config LEDS
741 bool "Timer and CPU usage LEDs"
742 depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
743 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
744 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
745 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000746 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100747 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
Ronen Shitrit817eb212007-10-17 14:51:34 -0400748 ARCH_KS8695 || MACH_RD88F5182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749 help
750 If you say Y here, the LEDs on your machine will be used
751 to provide useful information about your current system status.
752
753 If you are compiling a kernel for a NetWinder or EBSA-285, you will
754 be able to select which LEDs are active using the options below. If
755 you are compiling a kernel for the EBSA-110 or the LART however, the
756 red LED will simply flash regularly to indicate that the system is
757 still functional. It is safe to say Y here if you have a CATS
758 system, but the driver will do nothing.
759
760config LEDS_TIMER
761 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -0700762 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
763 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700764 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100765 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766 default y if ARCH_EBSA110
767 help
768 If you say Y here, one of the system LEDs (the green one on the
769 NetWinder, the amber one on the EBSA285, or the red one on the LART)
770 will flash regularly to indicate that the system is still
771 operational. This is mainly useful to kernel hackers who are
772 debugging unstable kernels.
773
774 The LART uses the same LED for both Timer LED and CPU usage LED
775 functions. You may choose to use both, but the Timer LED function
776 will overrule the CPU usage LED.
777
778config LEDS_CPU
779 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -0700780 !ARCH_OMAP) \
781 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
782 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783 depends on LEDS
784 help
785 If you say Y here, the red LED will be used to give a good real
786 time indication of CPU usage, by lighting whenever the idle task
787 is not currently executing.
788
789 The LART uses the same LED for both Timer LED and CPU usage LED
790 functions. You may choose to use both, but the Timer LED function
791 will overrule the CPU usage LED.
792
793config ALIGNMENT_TRAP
794 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900795 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796 default y if !ARCH_EBSA110
797 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200798 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700799 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
800 address divisible by 4. On 32-bit ARM processors, these non-aligned
801 fetch/store instructions will be emulated in software if you say
802 here, which has a severe performance impact. This is necessary for
803 correct operation of some network protocols. With an IP-only
804 configuration it is safe to say N, otherwise say Y.
805
806endmenu
807
808menu "Boot options"
809
810# Compressed boot loader in ROM. Yes, we really want to ask about
811# TEXT and BSS so we preserve their values in the config files.
812config ZBOOT_ROM_TEXT
813 hex "Compressed ROM boot loader base address"
814 default "0"
815 help
816 The physical address at which the ROM-able zImage is to be
817 placed in the target. Platforms which normally make use of
818 ROM-able zImage formats normally set this to a suitable
819 value in their defconfig file.
820
821 If ZBOOT_ROM is not enabled, this has no effect.
822
823config ZBOOT_ROM_BSS
824 hex "Compressed ROM boot loader BSS address"
825 default "0"
826 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100827 The base address of an area of read/write memory in the target
828 for the ROM-able zImage which must be available while the
829 decompressor is running. It must be large enough to hold the
830 entire decompressed kernel plus an additional 128 KiB.
831 Platforms which normally make use of ROM-able zImage formats
832 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700833
834 If ZBOOT_ROM is not enabled, this has no effect.
835
836config ZBOOT_ROM
837 bool "Compressed boot loader in ROM/flash"
838 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
839 help
840 Say Y here if you intend to execute your compressed kernel image
841 (zImage) directly from ROM or flash. If unsure, say N.
842
843config CMDLINE
844 string "Default kernel command string"
845 default ""
846 help
847 On some architectures (EBSA110 and CATS), there is currently no way
848 for the boot loader to pass arguments to the kernel. For these
849 architectures, you should supply some command-line options at build
850 time by entering them here. As a minimum, you should specify the
851 memory size and the root device (e.g., mem=64M root=/dev/nfs).
852
853config XIP_KERNEL
854 bool "Kernel Execute-In-Place from ROM"
855 depends on !ZBOOT_ROM
856 help
857 Execute-In-Place allows the kernel to run from non-volatile storage
858 directly addressable by the CPU, such as NOR flash. This saves RAM
859 space since the text section of the kernel is not loaded from flash
860 to RAM. Read-write sections, such as the data section and stack,
861 are still copied to RAM. The XIP kernel is not compressed since
862 it has to run directly from flash, so it will take more space to
863 store it. The flash address used to link the kernel object files,
864 and for storing it, is configuration dependent. Therefore, if you
865 say Y here, you must know the proper physical address where to
866 store the kernel image depending on your own flash memory usage.
867
868 Also note that the make target becomes "make xipImage" rather than
869 "make zImage" or "make Image". The final kernel binary to put in
870 ROM memory will be arch/arm/boot/xipImage.
871
872 If unsure, say N.
873
874config XIP_PHYS_ADDR
875 hex "XIP Kernel Physical Location"
876 depends on XIP_KERNEL
877 default "0x00080000"
878 help
879 This is the physical address in your flash memory the kernel will
880 be linked for and stored to. This address is dependent on your
881 own flash usage.
882
Richard Purdiec587e4a2007-02-06 21:29:00 +0100883config KEXEC
884 bool "Kexec system call (EXPERIMENTAL)"
885 depends on EXPERIMENTAL
886 help
887 kexec is a system call that implements the ability to shutdown your
888 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200889 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +0100890 you can start any kernel with it, not just Linux.
891
892 It is an ongoing process to be certain the hardware in a machine
893 is properly shutdown, so do not be surprised if this code does not
894 initially work for you. It may help to enable device hotplugging
895 support.
896
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897endmenu
898
Russell King9e2697f2007-12-14 13:30:14 +0000899if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900
901menu "CPU Frequency scaling"
902
903source "drivers/cpufreq/Kconfig"
904
905config CPU_FREQ_SA1100
906 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +0100907 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 -0700908 default y
909
910config CPU_FREQ_SA1110
911 bool
912 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
913 default y
914
915config CPU_FREQ_INTEGRATOR
916 tristate "CPUfreq driver for ARM Integrator CPUs"
917 depends on ARCH_INTEGRATOR && CPU_FREQ
918 default y
919 help
920 This enables the CPUfreq driver for ARM Integrator CPUs.
921
922 For details, take a look at <file:Documentation/cpu-freq>.
923
924 If in doubt, say Y.
925
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +0100926config CPU_FREQ_IMX
927 tristate "CPUfreq driver for i.MX CPUs"
928 depends on ARCH_IMX && CPU_FREQ
929 default n
930 help
931 This enables the CPUfreq driver for i.MX CPUs.
932
933 If in doubt, say N.
934
Russell King9e2697f2007-12-14 13:30:14 +0000935config CPU_FREQ_PXA
936 bool
937 depends on CPU_FREQ && ARCH_PXA && PXA25x
938 default y
939 select CPU_FREQ_DEFAULT_GOV_USERSPACE
940
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941endmenu
942
943endif
944
945menu "Floating point emulation"
946
947comment "At least one emulation must be selected"
948
949config FPE_NWFPE
950 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +0000951 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952 ---help---
953 Say Y to include the NWFPE floating point emulator in the kernel.
954 This is necessary to run most binaries. Linux does not currently
955 support floating point hardware so you need to say Y here even if
956 your machine has an FPA or floating point co-processor podule.
957
958 You may say N here if you are going to load the Acorn FPEmulator
959 early in the bootup.
960
961config FPE_NWFPE_XP
962 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +0000963 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964 help
965 Say Y to include 80-bit support in the kernel floating-point
966 emulator. Otherwise, only 32 and 64-bit support is compiled in.
967 Note that gcc does not generate 80-bit operations by default,
968 so in most cases this option only enlarges the size of the
969 floating point emulator without any good reason.
970
971 You almost surely want to say N here.
972
973config FPE_FASTFPE
974 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +0000975 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976 ---help---
977 Say Y here to include the FAST floating point emulator in the kernel.
978 This is an experimental much faster emulator which now also has full
979 precision for the mantissa. It does not support any exceptions.
980 It is very simple, and approximately 3-6 times faster than NWFPE.
981
982 It should be sufficient for most programs. It may be not suitable
983 for scientific calculations, but you have to check this for yourself.
984 If you do not feel you need a faster FP emulation you should better
985 choose NWFPE.
986
987config VFP
988 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +0000989 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990 help
991 Say Y to include VFP support code in the kernel. This is needed
992 if your hardware includes a VFP unit.
993
994 Please see <file:Documentation/arm/VFP/release-notes.txt> for
995 release notes and additional status information.
996
997 Say N if your target does not have VFP hardware.
998
Catalin Marinas25ebee02007-09-25 15:22:24 +0100999config VFPv3
1000 bool
1001 depends on VFP
1002 default y if CPU_V7
1003
Catalin Marinasb5872db2008-01-10 19:16:17 +01001004config NEON
1005 bool "Advanced SIMD (NEON) Extension support"
1006 depends on VFPv3 && CPU_V7
1007 help
1008 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1009 Extension.
1010
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011endmenu
1012
1013menu "Userspace binary formats"
1014
1015source "fs/Kconfig.binfmt"
1016
1017config ARTHUR
1018 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001019 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020 help
1021 Say Y here to include the kernel code necessary if you want to run
1022 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1023 experimental; if this sounds frightening, say N and sleep in peace.
1024 You can also say M here to compile this support as a module (which
1025 will be called arthur).
1026
1027endmenu
1028
1029menu "Power management options"
1030
Russell Kingeceab4a2005-11-15 11:31:41 +00001031source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032
Johannes Bergf4cb5702007-12-08 02:14:00 +01001033config ARCH_SUSPEND_POSSIBLE
1034 def_bool y
1035
Linus Torvalds1da177e2005-04-16 15:20:36 -07001036endmenu
1037
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001038source "net/Kconfig"
1039
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040menu "Device Drivers"
1041
1042source "drivers/base/Kconfig"
1043
Pavel Machekc35bf4a2005-11-12 20:25:25 +00001044source "drivers/connector/Kconfig"
1045
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001046if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047source "drivers/mtd/Kconfig"
1048endif
1049
1050source "drivers/parport/Kconfig"
1051
1052source "drivers/pnp/Kconfig"
1053
1054source "drivers/block/Kconfig"
1055
Russell King58273e52007-10-12 22:24:09 +01001056# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1057
1058source "drivers/misc/Kconfig"
1059
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001060if PCMCIA || ARCH_CLPS7500 || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX \
David Brownellbb011b82005-06-12 23:26:05 +01001061 || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001062 || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \
1063 || ARCH_IXP23XX
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064source "drivers/ide/Kconfig"
1065endif
1066
1067source "drivers/scsi/Kconfig"
1068
Martin Michlmayreb370f02006-11-17 00:14:35 +01001069source "drivers/ata/Kconfig"
1070
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071source "drivers/md/Kconfig"
1072
1073source "drivers/message/fusion/Kconfig"
1074
1075source "drivers/ieee1394/Kconfig"
1076
1077source "drivers/message/i2o/Kconfig"
1078
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001079source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080
1081source "drivers/isdn/Kconfig"
1082
1083# input before char - char/joystick depends on it. As does USB.
1084
1085source "drivers/input/Kconfig"
1086
1087source "drivers/char/Kconfig"
1088
1089source "drivers/i2c/Kconfig"
1090
David Brownell8ae12a02006-01-08 13:34:19 -08001091source "drivers/spi/Kconfig"
1092
Alessandro Zummo04916c02006-03-10 22:30:01 +00001093source "drivers/w1/Kconfig"
1094
Russell King58273e52007-10-12 22:24:09 +01001095source "drivers/power/Kconfig"
1096
Jean Delvaread2f9312005-07-02 18:15:49 +02001097source "drivers/hwmon/Kconfig"
1098
Russell King70dfa3f2007-11-07 14:13:35 +00001099source "drivers/watchdog/Kconfig"
1100
Russell King58273e52007-10-12 22:24:09 +01001101source "drivers/ssb/Kconfig"
1102
Linus Torvalds1da177e2005-04-16 15:20:36 -07001103#source "drivers/l3/Kconfig"
1104
Russell Kinga4e137a2005-08-18 10:06:59 +01001105source "drivers/mfd/Kconfig"
1106
Linus Torvalds1da177e2005-04-16 15:20:36 -07001107source "drivers/media/Kconfig"
1108
1109source "drivers/video/Kconfig"
1110
1111source "sound/Kconfig"
1112
Sascha Hauerc2dade52006-12-12 10:32:42 +01001113source "drivers/hid/Kconfig"
1114
Linus Torvalds1da177e2005-04-16 15:20:36 -07001115source "drivers/usb/Kconfig"
1116
1117source "drivers/mmc/Kconfig"
1118
Russell King58273e52007-10-12 22:24:09 +01001119source "drivers/leds/Kconfig"
1120
Alessandro Zummo12b824f2006-03-27 01:16:35 -08001121source "drivers/rtc/Kconfig"
1122
Dan Williams58168152007-01-02 11:10:43 -07001123source "drivers/dma/Kconfig"
1124
Dan Williamsabf07b12008-01-18 23:26:10 +01001125source "drivers/dca/Kconfig"
1126
Linus Torvalds1da177e2005-04-16 15:20:36 -07001127endmenu
1128
1129source "fs/Kconfig"
1130
Linus Torvalds38ad9ae2008-01-15 09:23:51 -08001131source "arch/arm/Kconfig.instrumentation"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132
1133source "arch/arm/Kconfig.debug"
1134
1135source "security/Kconfig"
1136
1137source "crypto/Kconfig"
1138
1139source "lib/Kconfig"