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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
Linus Torvalds1da177e2005-04-16 15:20:36 -070032config MMU
33 bool
34 default y
35
Al Viro5ea81762007-02-11 15:41:31 +000036config NO_IOPORT
37 bool
38 default n
39
Linus Torvalds1da177e2005-04-16 15:20:36 -070040config EISA
41 bool
42 ---help---
43 The Extended Industry Standard Architecture (EISA) bus was
44 developed as an open alternative to the IBM MicroChannel bus.
45
46 The EISA bus provided some of the features of the IBM MicroChannel
47 bus while maintaining backward compatibility with cards made for
48 the older ISA bus. The EISA bus saw limited use between 1988 and
49 1995 when it was made obsolete by the PCI bus.
50
51 Say Y here if you are building a kernel for an EISA-based machine.
52
53 Otherwise, say N.
54
55config SBUS
56 bool
57
58config MCA
59 bool
60 help
61 MicroChannel Architecture is found in some IBM PS/2 machines and
62 laptops. It is a bus system similar to PCI or ISA. See
63 <file:Documentation/mca.txt> (and especially the web page given
64 there) before attempting to build an MCA bus kernel.
65
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010066config GENERIC_HARDIRQS
67 bool
68 default y
69
Russell King7ad1bcb2006-08-27 12:07:02 +010070config TRACE_IRQFLAGS_SUPPORT
71 bool
72 default y
73
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010074config HARDIRQS_SW_RESEND
75 bool
76 default y
77
78config GENERIC_IRQ_PROBE
79 bool
80 default y
81
Linus Torvalds1da177e2005-04-16 15:20:36 -070082config RWSEM_GENERIC_SPINLOCK
83 bool
84 default y
85
86config RWSEM_XCHGADD_ALGORITHM
87 bool
88
David Howellsf0d1b0b2006-12-08 02:37:49 -080089config ARCH_HAS_ILOG2_U32
90 bool
91 default n
92
93config ARCH_HAS_ILOG2_U64
94 bool
95 default n
96
Akinobu Mitab89c3b12006-03-26 01:39:19 -080097config GENERIC_HWEIGHT
98 bool
99 default y
100
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101config GENERIC_CALIBRATE_DELAY
102 bool
103 default y
104
105config GENERIC_BUST_SPINLOCK
106 bool
107
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100108config ARCH_MAY_HAVE_PC_FDC
109 bool
110
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800111config ZONE_DMA
112 bool
113 default y
114
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115config GENERIC_ISA_DMA
116 bool
117
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118config FIQ
119 bool
120
Al Viro034d2f52005-12-19 16:27:59 -0500121config ARCH_MTD_XIP
122 bool
123
Hyok S. Choic760fc12006-03-27 15:18:50 +0100124config VECTORS_BASE
125 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900126 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100127 default DRAM_BASE if REMAP_VECTORS_TO_RAM
128 default 0x00000000
129 help
130 The base address of exception vectors.
131
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132source "init/Kconfig"
133
134menu "System Type"
135
136choice
137 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000138 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100140config ARCH_AAEC2000
141 bool "Agilent AAEC-2000 based"
142 select ARM_AMBA
143 help
144 This enables support for systems based on the Agilent AAEC-2000
145
146config ARCH_INTEGRATOR
147 bool "ARM Ltd. Integrator family"
148 select ARM_AMBA
149 select ICST525
150 help
151 Support for ARM's Integrator platform.
152
153config ARCH_REALVIEW
154 bool "ARM Ltd. RealView family"
155 select ARM_AMBA
156 select ICST307
157 help
158 This enables support for ARM Ltd RealView boards.
159
160config ARCH_VERSATILE
161 bool "ARM Ltd. Versatile family"
162 select ARM_AMBA
163 select ARM_VIC
164 select ICST307
165 help
166 This enables support for ARM Ltd Versatile board.
167
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100168config ARCH_AT91
169 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800170 select GENERIC_GPIO
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100171 help
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100172 This enables support for systems based on the Atmel AT91RM9200
173 and AT91SAM9xxx processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100174
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175config ARCH_CLPS7500
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100176 bool "Cirrus CL-PS7500FE"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177 select TIMER_ACORN
Russell Kingf7e68bb2005-05-05 14:49:01 +0100178 select ISA
Russell Kinge4169882007-02-26 21:07:30 +0000179 select NO_IOPORT
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000180 help
181 Support for the Cirrus Logic PS7500FE system-on-a-chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182
183config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100184 bool "Cirrus Logic CLPS711x/EP721x-based"
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000185 help
186 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187
188config ARCH_CO285
189 bool "Co-EBSA285"
190 select FOOTBRIDGE
191 select FOOTBRIDGE_ADDIN
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000192 help
193 Support for Intel's EBSA285 companion chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194
195config ARCH_EBSA110
196 bool "EBSA-110"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100197 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000198 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199 help
200 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000201 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 Ethernet interface, two PCMCIA sockets, two serial ports and a
203 parallel port.
204
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000205config ARCH_EP93XX
206 bool "EP93xx-based"
207 select ARM_AMBA
208 select ARM_VIC
209 help
210 This enables support for the Cirrus EP93xx series of CPUs.
211
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212config ARCH_FOOTBRIDGE
213 bool "FootBridge"
214 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000215 help
216 Support for systems based on the DC21285 companion chip
217 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100219config ARCH_NETX
220 bool "Hilscher NetX based"
221 select ARM_VIC
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000222 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100223 This enables support for systems based on the Hilscher NetX Soc
224
225config ARCH_H720X
226 bool "Hynix HMS720x-based"
227 select ISA_DMA_API
228 help
229 This enables support for systems based on the Hynix HMS720x
230
231config ARCH_IMX
232 bool "IMX"
233 help
234 Support for Motorola's i.MX family of processors (MX1, MXL).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100236config ARCH_IOP32X
237 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100238 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100239 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100240 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000241 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100242 Support for Intel's 80219 and IOP32X (XScale) family of
243 processors.
244
245config ARCH_IOP33X
246 bool "IOP33x-based"
247 depends on MMU
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100248 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100249 select PCI
250 help
251 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252
Dan Williams285f5fa2006-12-07 02:59:39 +0100253config ARCH_IOP13XX
254 bool "IOP13xx-based"
Dan Williams588ef762007-02-13 17:12:04 +0100255 depends on MMU
256 select PLAT_IOP
Dan Williams285f5fa2006-12-07 02:59:39 +0100257 select PCI
258 help
259 Support for Intel's IOP13XX (XScale) family of processors.
260
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261config ARCH_IXP4XX
262 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100263 depends on MMU
Kevin Hilman84904d02006-09-22 00:58:57 +0100264 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000265 help
266 Support for Intel's IXP4XX (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267
268config ARCH_IXP2000
269 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100270 depends on MMU
Russell Kingf7e68bb2005-05-05 14:49:01 +0100271 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000272 help
273 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100275config ARCH_IXP23XX
276 bool "IXP23XX-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100277 depends on MMU
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100278 select PCI
279 help
280 Support for Intel's IXP23xx (XScale) family of processors.
281
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282config ARCH_L7200
283 bool "LinkUp-L7200"
284 select FIQ
285 help
286 Say Y here if you intend to run this kernel on a LinkUp Systems
287 L7200 Software Development Board which uses an ARM720T processor.
288 Information on this board can be obtained at:
289
290 <http://www.linkupsys.com/>
291
292 If you have any questions or comments about the Linux kernel port
293 to this board, send e-mail to <sjhill@cotw.com>.
294
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100295config ARCH_NS9XXX
296 bool "NetSilicon NS9xxx"
297 help
298 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
299 System.
300
301 <http://www.digi.com/products/microprocessors/index.jsp>
302
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100303config ARCH_PNX4008
304 bool "Philips Nexperia PNX4008 Mobile"
305 help
306 This enables support for Philips PNX4008 mobile platform.
307
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308config ARCH_PXA
309 bool "PXA2xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100310 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500311 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800312 select GENERIC_GPIO
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100313 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000314 help
315 Support for Intel's PXA2XX processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316
317config ARCH_RPC
318 bool "RiscPC"
319 select ARCH_ACORN
320 select FIQ
321 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100322 select ARCH_MAY_HAVE_PC_FDC
Russell King065909b2006-01-04 15:44:16 +0000323 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000324 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325 help
326 On the Acorn Risc-PC, Linux can support the internal IDE disk and
327 CD-ROM interface, serial and parallel port, and the floppy drive.
328
329config ARCH_SA1100
330 bool "SA1100-based"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100331 select ISA
Russell King3cd9e192005-06-25 19:29:34 +0100332 select ARCH_DISCONTIGMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500333 select ARCH_MTD_XIP
David Brownell0a938b92007-03-05 00:30:18 -0800334 select GENERIC_GPIO
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000335 help
336 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337
338config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100339 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800340 select GENERIC_GPIO
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 help
342 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
343 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000344 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345
346config ARCH_SHARK
347 bool "Shark"
Russell Kingf7e68bb2005-05-05 14:49:01 +0100348 select ISA
349 select ISA_DMA
350 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000351 help
352 Support for the StrongARM based Digital DNARD machine, also known
353 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354
355config ARCH_LH7A40X
356 bool "Sharp LH7A40X"
357 help
358 Say Y here for systems based on one of the Sharp LH7A40X
359 System on a Chip processors. These CPUs include an ARM922T
360 core with a wide array of integrated devices for
361 hand-held and low-power applications.
362
363config ARCH_OMAP
364 bool "TI OMAP"
David Brownell0a938b92007-03-05 00:30:18 -0800365 select GENERIC_GPIO
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000366 help
367 Support for TI's OMAP platform (OMAP1 and OMAP2).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369endchoice
370
371source "arch/arm/mach-clps711x/Kconfig"
372
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000373source "arch/arm/mach-ep93xx/Kconfig"
374
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375source "arch/arm/mach-footbridge/Kconfig"
376
377source "arch/arm/mach-integrator/Kconfig"
378
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100379source "arch/arm/mach-iop32x/Kconfig"
380
381source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382
Dan Williams285f5fa2006-12-07 02:59:39 +0100383source "arch/arm/mach-iop13xx/Kconfig"
384
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385source "arch/arm/mach-ixp4xx/Kconfig"
386
387source "arch/arm/mach-ixp2000/Kconfig"
388
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100389source "arch/arm/mach-ixp23xx/Kconfig"
390
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391source "arch/arm/mach-pxa/Kconfig"
392
393source "arch/arm/mach-sa1100/Kconfig"
394
Tony Lindgrend48af152005-07-10 19:58:17 +0100395source "arch/arm/plat-omap/Kconfig"
396
397source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398
Tony Lindgren1dbae812005-11-10 14:26:51 +0000399source "arch/arm/mach-omap2/Kconfig"
400
Ben Dooksa21765a2007-02-11 18:31:01 +0100401source "arch/arm/plat-s3c24xx/Kconfig"
402
403if ARCH_S3C2410
404source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100406source "arch/arm/mach-s3c2412/Kconfig"
407source "arch/arm/mach-s3c2440/Kconfig"
408source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100409source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100410endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411
412source "arch/arm/mach-lh7a40x/Kconfig"
413
414source "arch/arm/mach-imx/Kconfig"
415
416source "arch/arm/mach-h720x/Kconfig"
417
418source "arch/arm/mach-versatile/Kconfig"
419
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100420source "arch/arm/mach-aaec2000/Kconfig"
421
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000422source "arch/arm/mach-realview/Kconfig"
423
Andrew Victor9d041262007-02-05 11:42:07 +0100424source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000425
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100426source "arch/arm/mach-netx/Kconfig"
427
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100428source "arch/arm/mach-ns9xxx/Kconfig"
429
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430# Definitions to make life easier
431config ARCH_ACORN
432 bool
433
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100434config PLAT_IOP
435 bool
436
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437source arch/arm/mm/Kconfig
438
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100439config IWMMXT
440 bool "Enable iWMMXt support"
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100441 depends on CPU_XSCALE || CPU_XSC3
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100442 default y if PXA27x
443 help
444 Enable support for iWMMXt context switching at run time if
445 running on a CPU that supports it.
446
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
448config XSCALE_PMU
449 bool
450 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
451 default y
452
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100453if !MMU
454source "arch/arm/Kconfig-nommu"
455endif
456
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457endmenu
458
459source "arch/arm/common/Kconfig"
460
461config FORCE_MAX_ZONEORDER
462 int
463 depends on SA1111
464 default "9"
465
466menu "Bus support"
467
468config ARM_AMBA
469 bool
470
471config ISA
472 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473 help
474 Find out whether you have ISA slots on your motherboard. ISA is the
475 name of a bus system, i.e. the way the CPU talks to the other stuff
476 inside your box. Other bus systems are PCI, EISA, MicroChannel
477 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
478 newer boards don't support it. If you have ISA, say Y, otherwise N.
479
Russell King065909b2006-01-04 15:44:16 +0000480# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481config ISA_DMA
482 bool
Russell King065909b2006-01-04 15:44:16 +0000483 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484
Russell King065909b2006-01-04 15:44:16 +0000485# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100486config ISA_DMA_API
487 bool
Al Viro5cae8412005-05-04 05:39:22 +0100488
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489config PCI
Milan Svoboda68939122006-06-25 22:12:12 +0100490 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 help
492 Find out whether you have a PCI motherboard. PCI is the name of a
493 bus system, i.e. the way the CPU talks to the other stuff inside
494 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
495 VESA. If you have PCI, say Y, otherwise N.
496
497 The PCI-HOWTO, available from
498 <http://www.tldp.org/docs.html#howto>, contains valuable
499 information about which PCI hardware does work under Linux and which
500 doesn't.
501
502# Select the host bridge type
503config PCI_HOST_VIA82C505
504 bool
505 depends on PCI && ARCH_SHARK
506 default y
507
508source "drivers/pci/Kconfig"
509
510source "drivers/pcmcia/Kconfig"
511
512endmenu
513
514menu "Kernel Features"
515
516config SMP
517 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell Kingf6db4492005-11-07 21:30:21 +0000518 depends on EXPERIMENTAL && REALVIEW_MPCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519 help
520 This enables support for systems with more than one CPU. If you have
521 a system with only one CPU, like most personal computers, say N. If
522 you have a system with more than one CPU, say Y.
523
524 If you say N here, the kernel will run on single and multiprocessor
525 machines, but will use only one CPU of a multiprocessor machine. If
526 you say Y here, the kernel will run on many, but not all, single
527 processor machines. On a single processor machine, the kernel will
528 run faster if you say N here.
529
Arthur Othieno12c62c22005-09-10 00:26:22 -0700530 See also the <file:Documentation/smp.txt>,
531 <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700532 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
533 <http://www.linuxdoc.org/docs.html#howto>.
534
535 If you don't know what to do here, say N.
536
537config NR_CPUS
538 int "Maximum number of CPUs (2-32)"
539 range 2 32
540 depends on SMP
541 default "4"
542
Russell Kinga054a812005-11-02 22:24:33 +0000543config HOTPLUG_CPU
544 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
545 depends on SMP && HOTPLUG && EXPERIMENTAL
546 help
547 Say Y here to experiment with turning CPUs off and on. CPUs
548 can be controlled through /sys/devices/system/cpu.
549
Russell King37ee16a2005-11-08 19:08:05 +0000550config LOCAL_TIMERS
551 bool "Use local timer interrupts"
Russell King2a98beb2005-11-09 10:50:29 +0000552 depends on SMP && REALVIEW_MPCORE
Russell King37ee16a2005-11-08 19:08:05 +0000553 default y
554 help
555 Enable support for local timers on SMP platforms, rather then the
556 legacy IPI broadcast method. Local timers allows the system
557 accounting to be spread across the timer interval, preventing a
558 "thundering herd" at every timer tick.
559
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560config PREEMPT
561 bool "Preemptible Kernel (EXPERIMENTAL)"
562 depends on EXPERIMENTAL
563 help
564 This option reduces the latency of the kernel when reacting to
565 real-time or interactive events by allowing a low priority process to
566 be preempted even if it is in kernel mode executing a system call.
567 This allows applications to run more reliably even when the system is
568 under load.
569
570 Say Y here if you are building a kernel for a desktop, embedded
571 or real-time system. Say N if you are unsure.
572
Russell King8749af62005-06-25 19:39:45 +0100573config NO_IDLE_HZ
574 bool "Dynamic tick timer"
575 help
576 Select this option if you want to disable continuous timer ticks
577 and have them programmed to occur as required. This option saves
578 power as the system can remain in idle state for longer.
579
580 By default dynamic tick is disabled during the boot, and can be
581 manually enabled with:
582
583 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
584
585 Alternatively, if you want dynamic tick automatically enabled
586 during boot, pass "dyntick=enable" via the kernel command string.
587
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100588 Please note that dynamic tick may affect the accuracy of
589 timekeeping on some platforms depending on the implementation.
Nicolas Pitre569d2c32005-09-01 12:48:48 +0100590 Currently at least OMAP, PXA2xx and SA11x0 platforms are known
591 to have accurate timekeeping with dynamic tick.
Tony Lindgrenf2be64b2005-06-28 21:01:16 +0100592
Russell Kingf8065812006-03-02 22:41:59 +0000593config HZ
594 int
595 default 128 if ARCH_L7200
596 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +0000597 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
Russell Kingf8065812006-03-02 22:41:59 +0000598 default 100
599
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000600config AEABI
601 bool "Use the ARM EABI to compile the kernel"
602 help
603 This option allows for the kernel to be compiled using the latest
604 ARM ABI (aka EABI). This is only useful if you are using a user
605 space environment that is also compiled with EABI.
606
607 Since there are major incompatibilities between the legacy ABI and
608 EABI, especially with regard to structure member alignment, this
609 option also changes the kernel syscall calling convention to
610 disambiguate both ABIs and allow for backward compatibility support
611 (selected with CONFIG_OABI_COMPAT).
612
613 To use this you need GCC version 4.0.0 or later.
614
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000615config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +0000616 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +0000617 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +0000618 default y
619 help
620 This option preserves the old syscall interface along with the
621 new (ARM EABI) one. It also provides a compatibility layer to
622 intercept syscalls that have structure arguments which layout
623 in memory differs between the legacy ABI and the new ARM EABI
624 (only for non "thumb" binaries). This option adds a tiny
625 overhead to all syscalls and produces a slightly larger kernel.
626 If you know you'll be using only pure EABI user space then you
627 can say N here. If this option is not selected and you attempt
628 to execute a legacy ABI binary then the result will be
629 UNPREDICTABLE (in fact it can be predicted that it won't work
630 at all). If in doubt say Y.
631
Dave Hansen3f22ab22005-06-23 00:07:43 -0700632config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633 bool
Russell Kingf7e68bb2005-05-05 14:49:01 +0100634 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635 help
636 Say Y to support efficient handling of discontiguous physical memory,
637 for architectures which are either NUMA (Non-Uniform Memory Access)
638 or have huge holes in the physical address space for other reasons.
639 See <file:Documentation/vm/numa> for more.
640
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700641config NODES_SHIFT
642 int
643 default "4" if ARCH_LH7A40X
644 default "2"
645 depends on NEED_MULTIPLE_NODES
646
Dave Hansen3f22ab22005-06-23 00:07:43 -0700647source "mm/Kconfig"
648
Linus Torvalds1da177e2005-04-16 15:20:36 -0700649config LEDS
650 bool "Timer and CPU usage LEDs"
651 depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
652 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
653 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
654 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +0000655 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Andrew Victor58a0cd72006-12-01 14:51:13 +0100656 ARCH_AT91 || MACH_TRIZEPS4
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657 help
658 If you say Y here, the LEDs on your machine will be used
659 to provide useful information about your current system status.
660
661 If you are compiling a kernel for a NetWinder or EBSA-285, you will
662 be able to select which LEDs are active using the options below. If
663 you are compiling a kernel for the EBSA-110 or the LART however, the
664 red LED will simply flash regularly to indicate that the system is
665 still functional. It is safe to say Y here if you have a CATS
666 system, but the driver will do nothing.
667
668config LEDS_TIMER
669 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
670 MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
671 depends on LEDS
672 default y if ARCH_EBSA110
673 help
674 If you say Y here, one of the system LEDs (the green one on the
675 NetWinder, the amber one on the EBSA285, or the red one on the LART)
676 will flash regularly to indicate that the system is still
677 operational. This is mainly useful to kernel hackers who are
678 debugging unstable kernels.
679
680 The LART uses the same LED for both Timer LED and CPU usage LED
681 functions. You may choose to use both, but the Timer LED function
682 will overrule the CPU usage LED.
683
684config LEDS_CPU
685 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
686 !ARCH_OMAP) || MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
687 depends on LEDS
688 help
689 If you say Y here, the red LED will be used to give a good real
690 time indication of CPU usage, by lighting whenever the idle task
691 is not currently executing.
692
693 The LART uses the same LED for both Timer LED and CPU usage LED
694 functions. You may choose to use both, but the Timer LED function
695 will overrule the CPU usage LED.
696
697config ALIGNMENT_TRAP
698 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900699 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700 default y if !ARCH_EBSA110
701 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +0200702 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
704 address divisible by 4. On 32-bit ARM processors, these non-aligned
705 fetch/store instructions will be emulated in software if you say
706 here, which has a severe performance impact. This is necessary for
707 correct operation of some network protocols. With an IP-only
708 configuration it is safe to say N, otherwise say Y.
709
710endmenu
711
712menu "Boot options"
713
714# Compressed boot loader in ROM. Yes, we really want to ask about
715# TEXT and BSS so we preserve their values in the config files.
716config ZBOOT_ROM_TEXT
717 hex "Compressed ROM boot loader base address"
718 default "0"
719 help
720 The physical address at which the ROM-able zImage is to be
721 placed in the target. Platforms which normally make use of
722 ROM-able zImage formats normally set this to a suitable
723 value in their defconfig file.
724
725 If ZBOOT_ROM is not enabled, this has no effect.
726
727config ZBOOT_ROM_BSS
728 hex "Compressed ROM boot loader BSS address"
729 default "0"
730 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +0100731 The base address of an area of read/write memory in the target
732 for the ROM-able zImage which must be available while the
733 decompressor is running. It must be large enough to hold the
734 entire decompressed kernel plus an additional 128 KiB.
735 Platforms which normally make use of ROM-able zImage formats
736 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737
738 If ZBOOT_ROM is not enabled, this has no effect.
739
740config ZBOOT_ROM
741 bool "Compressed boot loader in ROM/flash"
742 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
743 help
744 Say Y here if you intend to execute your compressed kernel image
745 (zImage) directly from ROM or flash. If unsure, say N.
746
747config CMDLINE
748 string "Default kernel command string"
749 default ""
750 help
751 On some architectures (EBSA110 and CATS), there is currently no way
752 for the boot loader to pass arguments to the kernel. For these
753 architectures, you should supply some command-line options at build
754 time by entering them here. As a minimum, you should specify the
755 memory size and the root device (e.g., mem=64M root=/dev/nfs).
756
757config XIP_KERNEL
758 bool "Kernel Execute-In-Place from ROM"
759 depends on !ZBOOT_ROM
760 help
761 Execute-In-Place allows the kernel to run from non-volatile storage
762 directly addressable by the CPU, such as NOR flash. This saves RAM
763 space since the text section of the kernel is not loaded from flash
764 to RAM. Read-write sections, such as the data section and stack,
765 are still copied to RAM. The XIP kernel is not compressed since
766 it has to run directly from flash, so it will take more space to
767 store it. The flash address used to link the kernel object files,
768 and for storing it, is configuration dependent. Therefore, if you
769 say Y here, you must know the proper physical address where to
770 store the kernel image depending on your own flash memory usage.
771
772 Also note that the make target becomes "make xipImage" rather than
773 "make zImage" or "make Image". The final kernel binary to put in
774 ROM memory will be arch/arm/boot/xipImage.
775
776 If unsure, say N.
777
778config XIP_PHYS_ADDR
779 hex "XIP Kernel Physical Location"
780 depends on XIP_KERNEL
781 default "0x00080000"
782 help
783 This is the physical address in your flash memory the kernel will
784 be linked for and stored to. This address is dependent on your
785 own flash usage.
786
Richard Purdiec587e4a2007-02-06 21:29:00 +0100787config KEXEC
788 bool "Kexec system call (EXPERIMENTAL)"
789 depends on EXPERIMENTAL
790 help
791 kexec is a system call that implements the ability to shutdown your
792 current kernel, and to start another kernel. It is like a reboot
793 but it is indepedent of the system firmware. And like a reboot
794 you can start any kernel with it, not just Linux.
795
796 It is an ongoing process to be certain the hardware in a machine
797 is properly shutdown, so do not be surprised if this code does not
798 initially work for you. It may help to enable device hotplugging
799 support.
800
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801endmenu
802
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +0100803if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX )
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804
805menu "CPU Frequency scaling"
806
807source "drivers/cpufreq/Kconfig"
808
809config CPU_FREQ_SA1100
810 bool
Vincent Sanders07c6d482005-06-09 21:59:22 +0100811 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 -0700812 default y
813
814config CPU_FREQ_SA1110
815 bool
816 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
817 default y
818
819config CPU_FREQ_INTEGRATOR
820 tristate "CPUfreq driver for ARM Integrator CPUs"
821 depends on ARCH_INTEGRATOR && CPU_FREQ
822 default y
823 help
824 This enables the CPUfreq driver for ARM Integrator CPUs.
825
826 For details, take a look at <file:Documentation/cpu-freq>.
827
828 If in doubt, say Y.
829
Pavel Pisa3c8cd0c2006-12-06 17:25:04 +0100830config CPU_FREQ_IMX
831 tristate "CPUfreq driver for i.MX CPUs"
832 depends on ARCH_IMX && CPU_FREQ
833 default n
834 help
835 This enables the CPUfreq driver for i.MX CPUs.
836
837 If in doubt, say N.
838
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839endmenu
840
841endif
842
843menu "Floating point emulation"
844
845comment "At least one emulation must be selected"
846
847config FPE_NWFPE
848 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +0000849 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850 ---help---
851 Say Y to include the NWFPE floating point emulator in the kernel.
852 This is necessary to run most binaries. Linux does not currently
853 support floating point hardware so you need to say Y here even if
854 your machine has an FPA or floating point co-processor podule.
855
856 You may say N here if you are going to load the Acorn FPEmulator
857 early in the bootup.
858
859config FPE_NWFPE_XP
860 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +0000861 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862 help
863 Say Y to include 80-bit support in the kernel floating-point
864 emulator. Otherwise, only 32 and 64-bit support is compiled in.
865 Note that gcc does not generate 80-bit operations by default,
866 so in most cases this option only enlarges the size of the
867 floating point emulator without any good reason.
868
869 You almost surely want to say N here.
870
871config FPE_FASTFPE
872 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +0000873 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874 ---help---
875 Say Y here to include the FAST floating point emulator in the kernel.
876 This is an experimental much faster emulator which now also has full
877 precision for the mantissa. It does not support any exceptions.
878 It is very simple, and approximately 3-6 times faster than NWFPE.
879
880 It should be sufficient for most programs. It may be not suitable
881 for scientific calculations, but you have to check this for yourself.
882 If you do not feel you need a faster FP emulation you should better
883 choose NWFPE.
884
885config VFP
886 bool "VFP-format floating point maths"
887 depends on CPU_V6 || CPU_ARM926T
888 help
889 Say Y to include VFP support code in the kernel. This is needed
890 if your hardware includes a VFP unit.
891
892 Please see <file:Documentation/arm/VFP/release-notes.txt> for
893 release notes and additional status information.
894
895 Say N if your target does not have VFP hardware.
896
897endmenu
898
899menu "Userspace binary formats"
900
901source "fs/Kconfig.binfmt"
902
903config ARTHUR
904 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000905 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700906 help
907 Say Y here to include the kernel code necessary if you want to run
908 Acorn RISC OS/Arthur binaries under Linux. This code is still very
909 experimental; if this sounds frightening, say N and sleep in peace.
910 You can also say M here to compile this support as a module (which
911 will be called arthur).
912
913endmenu
914
915menu "Power management options"
916
Russell Kingeceab4a2005-11-15 11:31:41 +0000917source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919endmenu
920
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700921source "net/Kconfig"
922
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923menu "Device Drivers"
924
925source "drivers/base/Kconfig"
926
Pavel Machekc35bf4a2005-11-12 20:25:25 +0000927source "drivers/connector/Kconfig"
928
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900929if ALIGNMENT_TRAP || !CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700930source "drivers/mtd/Kconfig"
931endif
932
933source "drivers/parport/Kconfig"
934
935source "drivers/pnp/Kconfig"
936
937source "drivers/block/Kconfig"
938
939source "drivers/acorn/block/Kconfig"
940
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100941if PCMCIA || ARCH_CLPS7500 || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX \
David Brownellbb011b82005-06-12 23:26:05 +0100942 || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100943 || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \
944 || ARCH_IXP23XX
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945source "drivers/ide/Kconfig"
946endif
947
948source "drivers/scsi/Kconfig"
949
Martin Michlmayreb370f02006-11-17 00:14:35 +0100950source "drivers/ata/Kconfig"
951
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952source "drivers/md/Kconfig"
953
954source "drivers/message/fusion/Kconfig"
955
956source "drivers/ieee1394/Kconfig"
957
958source "drivers/message/i2o/Kconfig"
959
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700960source "drivers/net/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
962source "drivers/isdn/Kconfig"
963
964# input before char - char/joystick depends on it. As does USB.
965
966source "drivers/input/Kconfig"
967
968source "drivers/char/Kconfig"
969
970source "drivers/i2c/Kconfig"
971
David Brownell8ae12a02006-01-08 13:34:19 -0800972source "drivers/spi/Kconfig"
973
Alessandro Zummo04916c02006-03-10 22:30:01 +0000974source "drivers/w1/Kconfig"
975
Jean Delvaread2f9312005-07-02 18:15:49 +0200976source "drivers/hwmon/Kconfig"
977
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978#source "drivers/l3/Kconfig"
979
980source "drivers/misc/Kconfig"
981
Russell Kinga4e137a2005-08-18 10:06:59 +0100982source "drivers/mfd/Kconfig"
983
Richard Purdiec72a1d62006-03-31 02:31:04 -0800984source "drivers/leds/Kconfig"
985
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986source "drivers/media/Kconfig"
987
988source "drivers/video/Kconfig"
989
990source "sound/Kconfig"
991
Sascha Hauerc2dade52006-12-12 10:32:42 +0100992source "drivers/hid/Kconfig"
993
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994source "drivers/usb/Kconfig"
995
996source "drivers/mmc/Kconfig"
997
Alessandro Zummo12b824f2006-03-27 01:16:35 -0800998source "drivers/rtc/Kconfig"
999
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000endmenu
1001
1002source "fs/Kconfig"
1003
1004source "arch/arm/oprofile/Kconfig"
1005
1006source "arch/arm/Kconfig.debug"
1007
1008source "security/Kconfig"
1009
1010source "crypto/Kconfig"
1011
1012source "lib/Kconfig"