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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
David Woodhousee17c6d52008-06-17 12:19:34 +010011 select HAVE_AOUT
Adrian Bunk2064c942008-04-28 23:44:43 +020012 select HAVE_IDE
Alessandro Zummo12b824f2006-03-27 01:16:35 -080013 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000014 select SYS_SUPPORTS_APM_EMULATION
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050015 select HAVE_OPROFILE
Jason Wessel5cbad0e2008-02-20 13:33:40 -060016 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050017 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080018 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040019 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040020 select HAVE_GENERIC_DMA_COHERENT
Linus Torvalds1da177e2005-04-16 15:20:36 -070021 help
22 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000023 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000025 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 Europe. There is an ARM Linux project with a web page at
27 <http://www.arm.linux.org.uk/>.
28
Russell King1a189b92008-04-13 21:41:55 +010029config HAVE_PWM
30 bool
31
Ralf Baechle75e71532007-02-09 17:08:58 +000032config SYS_SUPPORTS_APM_EMULATION
33 bool
34
David Brownell0a938b92007-03-05 00:30:18 -080035config GENERIC_GPIO
36 bool
David Brownell0a938b92007-03-05 00:30:18 -080037
Kevin Hilman746140c2006-09-22 00:16:30 +010038config GENERIC_TIME
39 bool
Kevin Hilman746140c2006-09-22 00:16:30 +010040
Kevin Hilman0567a0c2007-03-13 20:29:24 +010041config GENERIC_CLOCKEVENTS
42 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010043
Catalin Marinasa8655e82008-02-04 17:30:57 +010044config GENERIC_CLOCKEVENTS_BROADCAST
45 bool
46 depends on GENERIC_CLOCKEVENTS
47 default y if SMP && !LOCAL_TIMERS
48
Linus Walleijbc581772009-09-15 17:30:37 +010049config HAVE_TCM
50 bool
51 select GENERIC_ALLOCATOR
52
Al Viro5ea81762007-02-11 15:41:31 +000053config NO_IOPORT
54 bool
Al Viro5ea81762007-02-11 15:41:31 +000055
Linus Torvalds1da177e2005-04-16 15:20:36 -070056config EISA
57 bool
58 ---help---
59 The Extended Industry Standard Architecture (EISA) bus was
60 developed as an open alternative to the IBM MicroChannel bus.
61
62 The EISA bus provided some of the features of the IBM MicroChannel
63 bus while maintaining backward compatibility with cards made for
64 the older ISA bus. The EISA bus saw limited use between 1988 and
65 1995 when it was made obsolete by the PCI bus.
66
67 Say Y here if you are building a kernel for an EISA-based machine.
68
69 Otherwise, say N.
70
71config SBUS
72 bool
73
74config MCA
75 bool
76 help
77 MicroChannel Architecture is found in some IBM PS/2 machines and
78 laptops. It is a bus system similar to PCI or ISA. See
79 <file:Documentation/mca.txt> (and especially the web page given
80 there) before attempting to build an MCA bus kernel.
81
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010082config GENERIC_HARDIRQS
83 bool
84 default y
85
Russell Kingf16fb1e2007-04-28 09:59:37 +010086config STACKTRACE_SUPPORT
87 bool
88 default y
89
Nicolas Pitref76e9152008-04-24 01:31:46 -040090config HAVE_LATENCYTOP_SUPPORT
91 bool
92 depends on !SMP
93 default y
94
Russell Kingf16fb1e2007-04-28 09:59:37 +010095config LOCKDEP_SUPPORT
96 bool
97 default y
98
Russell King7ad1bcb2006-08-27 12:07:02 +010099config TRACE_IRQFLAGS_SUPPORT
100 bool
101 default y
102
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100103config HARDIRQS_SW_RESEND
104 bool
105 default y
106
107config GENERIC_IRQ_PROBE
108 bool
109 default y
110
Nick Piggin95c354f2008-01-30 13:31:20 +0100111config GENERIC_LOCKBREAK
112 bool
113 default y
114 depends on SMP && PREEMPT
115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116config RWSEM_GENERIC_SPINLOCK
117 bool
118 default y
119
120config RWSEM_XCHGADD_ALGORITHM
121 bool
122
David Howellsf0d1b0b2006-12-08 02:37:49 -0800123config ARCH_HAS_ILOG2_U32
124 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800125
126config ARCH_HAS_ILOG2_U64
127 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800128
Ben Dooks89c52ed2009-07-30 23:23:24 +0100129config ARCH_HAS_CPUFREQ
130 bool
131 help
132 Internal node to signify that the ARCH has CPUFREQ support
133 and that the relevant menu configurations are displayed for
134 it.
135
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800136config GENERIC_HWEIGHT
137 bool
138 default y
139
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140config GENERIC_CALIBRATE_DELAY
141 bool
142 default y
143
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100144config ARCH_MAY_HAVE_PC_FDC
145 bool
146
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800147config ZONE_DMA
148 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800149
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150config GENERIC_ISA_DMA
151 bool
152
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153config FIQ
154 bool
155
Al Viro034d2f52005-12-19 16:27:59 -0500156config ARCH_MTD_XIP
157 bool
158
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100159config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100160 def_bool y
161
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500162if OPROFILE
163
164config OPROFILE_ARMV6
165 def_bool y
166 depends on CPU_V6 && !SMP
167 select OPROFILE_ARM11_CORE
168
169config OPROFILE_MPCORE
170 def_bool y
171 depends on CPU_V6 && SMP
172 select OPROFILE_ARM11_CORE
173
174config OPROFILE_ARM11_CORE
175 bool
176
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100177config OPROFILE_ARMV7
178 def_bool y
179 depends on CPU_V7 && !SMP
180 bool
181
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500182endif
183
Hyok S. Choic760fc12006-03-27 15:18:50 +0100184config VECTORS_BASE
185 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900186 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100187 default DRAM_BASE if REMAP_VECTORS_TO_RAM
188 default 0x00000000
189 help
190 The base address of exception vectors.
191
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192source "init/Kconfig"
193
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700194source "kernel/Kconfig.freezer"
195
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196menu "System Type"
197
Hyok S. Choi3c427972009-07-24 12:35:00 +0100198config MMU
199 bool "MMU-based Paged Memory Management Support"
200 default y
201 help
202 Select if you want MMU-based virtualised addressing space
203 support by paged memory management. If unsure, say 'Y'.
204
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205choice
206 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000207 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100209config ARCH_AAEC2000
210 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000211 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100212 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700213 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100214 help
215 This enables support for systems based on the Agilent AAEC-2000
216
217config ARCH_INTEGRATOR
218 bool "ARM Ltd. Integrator family"
219 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100220 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700221 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000222 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100223 select ICST525
224 help
225 Support for ARM's Integrator platform.
226
227config ARCH_REALVIEW
228 bool "ARM Ltd. RealView family"
229 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700230 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000231 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100233 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100234 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100235 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100236 help
237 This enables support for ARM Ltd RealView boards.
238
239config ARCH_VERSATILE
240 bool "ARM Ltd. Versatile family"
241 select ARM_AMBA
242 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700243 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000244 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100245 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100246 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100247 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100248 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100249 help
250 This enables support for ARM Ltd Versatile board.
251
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100252config ARCH_AT91
253 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800254 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100255 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700256 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100257 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100258 This enables support for systems based on the Atmel AT91RM9200,
259 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100260
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100262 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000263 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000264 help
265 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266
Russell King788c9702009-04-26 14:21:59 +0100267config ARCH_GEMINI
268 bool "Cortina Systems Gemini"
269 select CPU_FA526
270 select GENERIC_GPIO
271 select ARCH_REQUIRE_GPIOLIB
272 help
273 Support for the Cortina Systems Gemini family SoCs
274
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275config ARCH_EBSA110
276 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000277 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100278 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000279 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280 help
281 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000282 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 Ethernet interface, two PCMCIA sockets, two serial ports and a
284 parallel port.
285
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000286config ARCH_EP93XX
287 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000288 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000289 select ARM_AMBA
290 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100291 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700292 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000293 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700294 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100295 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000296 help
297 This enables support for the Cirrus EP93xx series of CPUs.
298
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299config ARCH_FOOTBRIDGE
300 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000301 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000303 help
304 Support for systems based on the DC21285 companion chip
305 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306
Russell King788c9702009-04-26 14:21:59 +0100307config ARCH_MXC
308 bool "Freescale MXC/iMX-based"
309 select GENERIC_TIME
310 select GENERIC_CLOCKEVENTS
311 select ARCH_MTD_XIP
312 select GENERIC_GPIO
313 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100314 select HAVE_CLK
Russell King788c9702009-04-26 14:21:59 +0100315 help
316 Support for Freescale MXC/iMX-based family of processors
317
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100318config ARCH_STMP3XXX
319 bool "Freescale STMP3xxx"
320 select CPU_ARM926T
321 select HAVE_CLK
322 select COMMON_CLKDEV
323 select ARCH_REQUIRE_GPIOLIB
324 select GENERIC_TIME
325 select GENERIC_CLOCKEVENTS
326 select GENERIC_GPIO
327 select USB_ARCH_HAS_EHCI
328 help
329 Support for systems based on the Freescale 3xxx CPUs.
330
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100331config ARCH_NETX
332 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000333 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100334 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100335 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100336 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000337 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100338 This enables support for systems based on the Hilscher NetX Soc
339
340config ARCH_H720X
341 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000342 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100343 select ISA_DMA_API
344 help
345 This enables support for systems based on the Hynix HMS720x
346
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100347config ARCH_NOMADIK
348 bool "STMicroelectronics Nomadik"
349 select ARM_AMBA
350 select ARM_VIC
351 select CPU_ARM926T
352 select HAVE_CLK
353 select COMMON_CLKDEV
354 select GENERIC_TIME
355 select GENERIC_CLOCKEVENTS
Alessandro Rubini2ec1d352009-07-02 15:29:12 +0100356 select GENERIC_GPIO
357 select ARCH_REQUIRE_GPIOLIB
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100358 help
359 Support for the Nomadik platform by ST-Ericsson
360
Russell King3b938be2007-05-12 11:25:44 +0100361config ARCH_IOP13XX
362 bool "IOP13xx-based"
363 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000364 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100365 select PLAT_IOP
366 select PCI
367 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100368 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100369 help
370 Support for Intel's IOP13XX (XScale) family of processors.
371
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100372config ARCH_IOP32X
373 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100374 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000375 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100376 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100377 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100378 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100379 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000380 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100381 Support for Intel's 80219 and IOP32X (XScale) family of
382 processors.
383
384config ARCH_IOP33X
385 bool "IOP33x-based"
386 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000387 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100388 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100389 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100390 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100391 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100392 help
393 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394
Russell King3b938be2007-05-12 11:25:44 +0100395config ARCH_IXP23XX
396 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100397 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000398 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100399 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100400 help
Russell King3b938be2007-05-12 11:25:44 +0100401 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402
403config ARCH_IXP2000
404 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100405 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000406 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100407 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000408 help
409 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410
Russell King3b938be2007-05-12 11:25:44 +0100411config ARCH_IXP4XX
412 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100413 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000414 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100415 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100416 select GENERIC_TIME
417 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100418 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100419 help
Russell King3b938be2007-05-12 11:25:44 +0100420 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100421
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422config ARCH_L7200
423 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000424 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 select FIQ
426 help
427 Say Y here if you intend to run this kernel on a LinkUp Systems
428 L7200 Software Development Board which uses an ARM720T processor.
429 Information on this board can be obtained at:
430
431 <http://www.linkupsys.com/>
432
433 If you have any questions or comments about the Linux kernel port
434 to this board, send e-mail to <sjhill@cotw.com>.
435
Saeed Bishara651c74c2008-06-22 22:45:06 +0200436config ARCH_KIRKWOOD
437 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000438 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200439 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200440 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700441 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200442 select GENERIC_TIME
443 select GENERIC_CLOCKEVENTS
444 select PLAT_ORION
445 help
446 Support for the following Marvell Kirkwood series SoCs:
447 88F6180, 88F6192 and 88F6281.
448
Russell King788c9702009-04-26 14:21:59 +0100449config ARCH_LOKI
450 bool "Marvell Loki (88RC8480)"
451 select CPU_FEROCEON
452 select GENERIC_TIME
453 select GENERIC_CLOCKEVENTS
454 select PLAT_ORION
455 help
456 Support for the Marvell Loki (88RC8480) SoC.
457
458config ARCH_MV78XX0
459 bool "Marvell MV78xx0"
460 select CPU_FEROCEON
461 select PCI
462 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700463 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100464 select GENERIC_TIME
465 select GENERIC_CLOCKEVENTS
466 select PLAT_ORION
467 help
468 Support for the following Marvell MV78xx0 series SoCs:
469 MV781x0, MV782x0.
470
471config ARCH_ORION5X
472 bool "Marvell Orion"
473 depends on MMU
474 select CPU_FEROCEON
475 select PCI
476 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700477 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100478 select GENERIC_TIME
479 select GENERIC_CLOCKEVENTS
480 select PLAT_ORION
481 help
482 Support for the following Marvell Orion 5x series SoCs:
483 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
484 Orion-2 (5281), Orion-1-90 (6183).
485
486config ARCH_MMP
487 bool "Marvell PXA168/910"
488 depends on MMU
489 select GENERIC_GPIO
490 select ARCH_REQUIRE_GPIOLIB
491 select HAVE_CLK
492 select COMMON_CLKDEV
493 select GENERIC_TIME
494 select GENERIC_CLOCKEVENTS
495 select TICK_ONESHOT
496 select PLAT_PXA
497 help
498 Support for Marvell's PXA168/910 processor line.
499
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100500config ARCH_KS8695
501 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000502 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100503 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000504 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100505 help
506 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
507 System-on-Chip devices.
508
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100509config ARCH_NS9XXX
510 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000511 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100512 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100513 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100514 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700515 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100516 help
517 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
518 System.
519
520 <http://www.digi.com/products/microprocessors/index.jsp>
521
Russell King788c9702009-04-26 14:21:59 +0100522config ARCH_W90X900
523 bool "Nuvoton W90X900 CPU"
524 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100525 select ARCH_REQUIRE_GPIOLIB
526 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100527 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100528 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100529 select GENERIC_TIME
530 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200531 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100532 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
533 At present, the w90x900 has been renamed nuc900, regarding
534 the ARM series product line, you can login the following
535 link address to know more.
536
537 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
538 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400539
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100540config ARCH_PNX4008
541 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000542 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700543 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100544 help
545 This enables support for Philips PNX4008 mobile platform.
546
Linus Torvalds1da177e2005-04-16 15:20:36 -0700547config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700548 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100549 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500550 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100551 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800552 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700553 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000554 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700555 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100556 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100557 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000558 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800559 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000560 help
eric miao2c8086a2007-09-11 19:13:17 -0700561 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562
Russell King788c9702009-04-26 14:21:59 +0100563config ARCH_MSM
564 bool "Qualcomm MSM"
565 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800566 select GENERIC_TIME
567 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800568 help
Russell King788c9702009-04-26 14:21:59 +0100569 Support for Qualcomm MSM7K based systems. This runs on the ARM11
570 apps processor of the MSM7K and depends on a shared memory
571 interface to the ARM9 modem processor which runs the baseband stack
572 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800573
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574config ARCH_RPC
575 bool "RiscPC"
576 select ARCH_ACORN
577 select FIQ
578 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100579 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100580 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000581 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000582 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100583 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584 help
585 On the Acorn Risc-PC, Linux can support the internal IDE disk and
586 CD-ROM interface, serial and parallel port, and the floppy drive.
587
588config ARCH_SA1100
589 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000590 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100591 select ISA
Russell King05944d72006-11-30 20:43:51 +0000592 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500593 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100594 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800595 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000596 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100597 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700598 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100599 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700600 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000601 help
602 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603
604config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100605 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800606 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100607 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700608 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609 help
610 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
611 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000612 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613
Ben Dooksa08ab632008-10-21 14:06:39 +0100614config ARCH_S3C64XX
615 bool "Samsung S3C64XX"
616 select GENERIC_GPIO
617 select HAVE_CLK
Ben Dooks89c52ed2009-07-30 23:23:24 +0100618 select ARCH_HAS_CPUFREQ
Ben Dooksa08ab632008-10-21 14:06:39 +0100619 help
620 Samsung S3C64XX series based systems
621
Byungho Min5a7652f2009-06-23 21:39:42 +0900622config ARCH_S5PC1XX
623 bool "Samsung S5PC1XX"
624 select GENERIC_GPIO
625 select HAVE_CLK
626 select CPU_V7
627 help
628 Samsung S5PC1XX series based systems
629
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630config ARCH_SHARK
631 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000632 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100633 select ISA
634 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100635 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100636 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000637 help
638 Support for the StrongARM based Digital DNARD machine, also known
639 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640
641config ARCH_LH7A40X
642 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000643 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100644 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
645 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700646 help
647 Say Y here for systems based on one of the Sharp LH7A40X
648 System on a Chip processors. These CPUs include an ARM922T
649 core with a wide array of integrated devices for
650 hand-held and low-power applications.
651
Linus Walleijd98aac72009-04-27 10:21:46 +0100652config ARCH_U300
653 bool "ST-Ericsson U300 Series"
654 depends on MMU
655 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100656 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100657 select ARM_AMBA
658 select ARM_VIC
659 select GENERIC_TIME
660 select GENERIC_CLOCKEVENTS
661 select HAVE_CLK
662 select COMMON_CLKDEV
663 select GENERIC_GPIO
664 help
665 Support for ST-Ericsson U300 series mobile platforms.
666
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100667config ARCH_DAVINCI
668 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000669 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100670 select GENERIC_TIME
671 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100672 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700673 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700674 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100675 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700676 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700677 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700678 select GENERIC_ALLOCATOR
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100679 help
680 Support for TI's DaVinci platform.
681
Russell King3b938be2007-05-12 11:25:44 +0100682config ARCH_OMAP
683 bool "TI OMAP"
684 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700685 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700686 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100687 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100688 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700689 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100690 help
691 Support for TI's OMAP platform (OMAP1 and OMAP2).
692
Leo Chen6288e282009-08-07 19:46:15 +0100693config ARCH_BCMRING
694 bool "Broadcom BCMRING"
695 depends on MMU
696 select CPU_V6
697 select ARM_AMBA
698 select COMMON_CLKDEV
699 select GENERIC_TIME
700 select GENERIC_CLOCKEVENTS
701 select ARCH_WANT_OPTIONAL_GPIOLIB
702 help
703 Support for Broadcom's BCMRing platform.
704
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705endchoice
706
707source "arch/arm/mach-clps711x/Kconfig"
708
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000709source "arch/arm/mach-ep93xx/Kconfig"
710
Linus Torvalds1da177e2005-04-16 15:20:36 -0700711source "arch/arm/mach-footbridge/Kconfig"
712
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200713source "arch/arm/mach-gemini/Kconfig"
714
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715source "arch/arm/mach-integrator/Kconfig"
716
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100717source "arch/arm/mach-iop32x/Kconfig"
718
719source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720
Dan Williams285f5fa2006-12-07 02:59:39 +0100721source "arch/arm/mach-iop13xx/Kconfig"
722
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723source "arch/arm/mach-ixp4xx/Kconfig"
724
725source "arch/arm/mach-ixp2000/Kconfig"
726
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100727source "arch/arm/mach-ixp23xx/Kconfig"
728
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200729source "arch/arm/mach-loki/Kconfig"
730
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200731source "arch/arm/mach-mv78xx0/Kconfig"
732
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733source "arch/arm/mach-pxa/Kconfig"
Eric Miaobd5ce432009-01-20 12:06:01 +0800734source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735
Eric Miao49cbe782009-01-20 14:15:18 +0800736source "arch/arm/mach-mmp/Kconfig"
737
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738source "arch/arm/mach-sa1100/Kconfig"
739
Tony Lindgrend48af152005-07-10 19:58:17 +0100740source "arch/arm/plat-omap/Kconfig"
741
742source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743
Tony Lindgren1dbae812005-11-10 14:26:51 +0000744source "arch/arm/mach-omap2/Kconfig"
745
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400746source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400747
Saeed Bishara651c74c2008-06-22 22:45:06 +0200748source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749
Ben Dooksa21765a2007-02-11 18:31:01 +0100750source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100751source "arch/arm/plat-s3c64xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100752source "arch/arm/plat-s3c/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900753source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100754
755if ARCH_S3C2410
756source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100758source "arch/arm/mach-s3c2412/Kconfig"
759source "arch/arm/mach-s3c2440/Kconfig"
760source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100761source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100762endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763
Ben Dooksa08ab632008-10-21 14:06:39 +0100764if ARCH_S3C64XX
765source "arch/arm/mach-s3c6400/Kconfig"
766source "arch/arm/mach-s3c6410/Kconfig"
767endif
768
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100769source "arch/arm/plat-stmp3xxx/Kconfig"
770
Byungho Min5a7652f2009-06-23 21:39:42 +0900771if ARCH_S5PC1XX
772source "arch/arm/mach-s5pc100/Kconfig"
773endif
774
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775source "arch/arm/mach-lh7a40x/Kconfig"
776
Linus Torvalds1da177e2005-04-16 15:20:36 -0700777source "arch/arm/mach-h720x/Kconfig"
778
779source "arch/arm/mach-versatile/Kconfig"
780
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100781source "arch/arm/mach-aaec2000/Kconfig"
782
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000783source "arch/arm/mach-realview/Kconfig"
784
Andrew Victor9d041262007-02-05 11:42:07 +0100785source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000786
Quinn Jensen52c543f2007-07-09 22:06:53 +0100787source "arch/arm/plat-mxc/Kconfig"
788
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100789source "arch/arm/mach-nomadik/Kconfig"
790
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100791source "arch/arm/mach-netx/Kconfig"
792
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100793source "arch/arm/mach-ns9xxx/Kconfig"
794
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100795source "arch/arm/mach-davinci/Kconfig"
796
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100797source "arch/arm/mach-ks8695/Kconfig"
798
Brian Swetland9e73c842007-11-26 04:12:13 -0800799source "arch/arm/mach-msm/Kconfig"
800
Linus Walleijd98aac72009-04-27 10:21:46 +0100801source "arch/arm/mach-u300/Kconfig"
802
wanzongshun7ec80dd2008-12-03 03:55:38 +0100803source "arch/arm/mach-w90x900/Kconfig"
804
Leo Chen6288e282009-08-07 19:46:15 +0100805source "arch/arm/mach-bcmring/Kconfig"
806
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807# Definitions to make life easier
808config ARCH_ACORN
809 bool
810
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100811config PLAT_IOP
812 bool
813
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400814config PLAT_ORION
815 bool
816
Eric Miaobd5ce432009-01-20 12:06:01 +0800817config PLAT_PXA
818 bool
819
Linus Torvalds1da177e2005-04-16 15:20:36 -0700820source arch/arm/mm/Kconfig
821
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100822config IWMMXT
823 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800824 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
825 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100826 help
827 Enable support for iWMMXt context switching at run time if
828 running on a CPU that supports it.
829
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
831config XSCALE_PMU
832 bool
833 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
834 default y
835
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100836if !MMU
837source "arch/arm/Kconfig-nommu"
838endif
839
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100840config ARM_ERRATA_411920
841 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
842 depends on CPU_V6 && !SMP
843 help
844 Invalidation of the Instruction Cache operation can
845 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
846 It does not affect the MPCore. This option enables the ARM Ltd.
847 recommended workaround.
848
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100849config ARM_ERRATA_430973
850 bool "ARM errata: Stale prediction on replaced interworking branch"
851 depends on CPU_V7
852 help
853 This option enables the workaround for the 430973 Cortex-A8
854 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
855 interworking branch is replaced with another code sequence at the
856 same virtual address, whether due to self-modifying code or virtual
857 to physical address re-mapping, Cortex-A8 does not recover from the
858 stale interworking branch prediction. This results in Cortex-A8
859 executing the new code sequence in the incorrect ARM or Thumb state.
860 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
861 and also flushes the branch target cache at every context switch.
862 Note that setting specific bits in the ACTLR register may not be
863 available in non-secure mode.
864
Catalin Marinas855c5512009-04-30 17:06:15 +0100865config ARM_ERRATA_458693
866 bool "ARM errata: Processor deadlock when a false hazard is created"
867 depends on CPU_V7
868 help
869 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
870 erratum. For very specific sequences of memory operations, it is
871 possible for a hazard condition intended for a cache line to instead
872 be incorrectly associated with a different cache line. This false
873 hazard might then cause a processor deadlock. The workaround enables
874 the L1 caching of the NEON accesses and disables the PLD instruction
875 in the ACTLR register. Note that setting specific bits in the ACTLR
876 register may not be available in non-secure mode.
877
Catalin Marinas0516e462009-04-30 17:06:20 +0100878config ARM_ERRATA_460075
879 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
880 depends on CPU_V7
881 help
882 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
883 erratum. Any asynchronous access to the L2 cache may encounter a
884 situation in which recent store transactions to the L2 cache are lost
885 and overwritten with stale memory contents from external memory. The
886 workaround disables the write-allocate mode for the L2 cache via the
887 ACTLR register. Note that setting specific bits in the ACTLR register
888 may not be available in non-secure mode.
889
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890endmenu
891
892source "arch/arm/common/Kconfig"
893
894config FORCE_MAX_ZONEORDER
895 int
896 depends on SA1111
897 default "9"
898
899menu "Bus support"
900
901config ARM_AMBA
902 bool
903
904config ISA
905 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700906 help
907 Find out whether you have ISA slots on your motherboard. ISA is the
908 name of a bus system, i.e. the way the CPU talks to the other stuff
909 inside your box. Other bus systems are PCI, EISA, MicroChannel
910 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
911 newer boards don't support it. If you have ISA, say Y, otherwise N.
912
Russell King065909b2006-01-04 15:44:16 +0000913# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914config ISA_DMA
915 bool
Russell King065909b2006-01-04 15:44:16 +0000916 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917
Russell King065909b2006-01-04 15:44:16 +0000918# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100919config ISA_DMA_API
920 bool
Al Viro5cae8412005-05-04 05:39:22 +0100921
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100923 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924 help
925 Find out whether you have a PCI motherboard. PCI is the name of a
926 bus system, i.e. the way the CPU talks to the other stuff inside
927 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
928 VESA. If you have PCI, say Y, otherwise N.
929
Matthew Wilcox36e23592007-07-10 10:54:40 -0600930config PCI_SYSCALL
931 def_bool PCI
932
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933# Select the host bridge type
934config PCI_HOST_VIA82C505
935 bool
936 depends on PCI && ARCH_SHARK
937 default y
938
Mike Rapoporta0113a92007-11-25 08:55:34 +0100939config PCI_HOST_ITE8152
940 bool
941 depends on PCI && MACH_ARMCORE
942 default y
943 select DMABOUNCE
944
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945source "drivers/pci/Kconfig"
946
947source "drivers/pcmcia/Kconfig"
948
949endmenu
950
951menu "Kernel Features"
952
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100953source "kernel/time/Kconfig"
954
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955config SMP
956 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +0100957 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
958 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
Russell Kingbc282482009-05-17 18:58:34 +0100959 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa52008-06-10 20:48:30 +0200960 select USE_GENERIC_SMP_HELPERS
Santosh Shilimkar934f8be2009-04-28 20:52:05 +0530961 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962 help
963 This enables support for systems with more than one CPU. If you have
964 a system with only one CPU, like most personal computers, say N. If
965 you have a system with more than one CPU, say Y.
966
967 If you say N here, the kernel will run on single and multiprocessor
968 machines, but will use only one CPU of a multiprocessor machine. If
969 you say Y here, the kernel will run on many, but not all, single
970 processor machines. On a single processor machine, the kernel will
971 run faster if you say N here.
972
Adrian Bunk03502fa2008-02-03 15:50:21 +0200973 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
975 <http://www.linuxdoc.org/docs.html#howto>.
976
977 If you don't know what to do here, say N.
978
Russell Kinga8cbcd92009-05-16 11:51:14 +0100979config HAVE_ARM_SCU
980 bool
981 depends on SMP
982 help
983 This option enables support for the ARM system coherency unit
984
Russell Kingf32f4ce2009-05-16 12:14:21 +0100985config HAVE_ARM_TWD
986 bool
987 depends on SMP
988 help
989 This options enables support for the ARM timer and watchdog unit
990
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100991choice
992 prompt "Memory split"
993 default VMSPLIT_3G
994 help
995 Select the desired split between kernel and user memory.
996
997 If you are not absolutely sure what you are doing, leave this
998 option alone!
999
1000 config VMSPLIT_3G
1001 bool "3G/1G user/kernel split"
1002 config VMSPLIT_2G
1003 bool "2G/2G user/kernel split"
1004 config VMSPLIT_1G
1005 bool "1G/3G user/kernel split"
1006endchoice
1007
1008config PAGE_OFFSET
1009 hex
1010 default 0x40000000 if VMSPLIT_1G
1011 default 0x80000000 if VMSPLIT_2G
1012 default 0xC0000000
1013
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014config NR_CPUS
1015 int "Maximum number of CPUs (2-32)"
1016 range 2 32
1017 depends on SMP
1018 default "4"
1019
Russell Kinga054a812005-11-02 22:24:33 +00001020config HOTPLUG_CPU
1021 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1022 depends on SMP && HOTPLUG && EXPERIMENTAL
1023 help
1024 Say Y here to experiment with turning CPUs off and on. CPUs
1025 can be controlled through /sys/devices/system/cpu.
1026
Russell King37ee16a2005-11-08 19:08:05 +00001027config LOCAL_TIMERS
1028 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001029 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1030 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
Russell King37ee16a2005-11-08 19:08:05 +00001031 default y
Santosh Shilimkar934f8be2009-04-28 20:52:05 +05301032 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4)
Russell King37ee16a2005-11-08 19:08:05 +00001033 help
1034 Enable support for local timers on SMP platforms, rather then the
1035 legacy IPI broadcast method. Local timers allows the system
1036 accounting to be spread across the timer interval, preventing a
1037 "thundering herd" at every timer tick.
1038
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001039source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040
Russell Kingf8065812006-03-02 22:41:59 +00001041config HZ
1042 int
1043 default 128 if ARCH_L7200
1044 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +00001045 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001046 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001047 default 100
1048
Catalin Marinas16c79652009-07-24 12:33:02 +01001049config THUMB2_KERNEL
1050 bool "Compile the kernel in Thumb-2 mode"
1051 depends on CPU_V7 && EXPERIMENTAL
1052 select AEABI
1053 select ARM_ASM_UNIFIED
1054 help
1055 By enabling this option, the kernel will be compiled in
1056 Thumb-2 mode. A compiler/assembler that understand the unified
1057 ARM-Thumb syntax is needed.
1058
1059 If unsure, say N.
1060
Catalin Marinas0becb082009-07-24 12:32:53 +01001061config ARM_ASM_UNIFIED
1062 bool
1063
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001064config AEABI
1065 bool "Use the ARM EABI to compile the kernel"
1066 help
1067 This option allows for the kernel to be compiled using the latest
1068 ARM ABI (aka EABI). This is only useful if you are using a user
1069 space environment that is also compiled with EABI.
1070
1071 Since there are major incompatibilities between the legacy ABI and
1072 EABI, especially with regard to structure member alignment, this
1073 option also changes the kernel syscall calling convention to
1074 disambiguate both ABIs and allow for backward compatibility support
1075 (selected with CONFIG_OABI_COMPAT).
1076
1077 To use this you need GCC version 4.0.0 or later.
1078
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001079config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001080 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001081 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001082 default y
1083 help
1084 This option preserves the old syscall interface along with the
1085 new (ARM EABI) one. It also provides a compatibility layer to
1086 intercept syscalls that have structure arguments which layout
1087 in memory differs between the legacy ABI and the new ARM EABI
1088 (only for non "thumb" binaries). This option adds a tiny
1089 overhead to all syscalls and produces a slightly larger kernel.
1090 If you know you'll be using only pure EABI user space then you
1091 can say N here. If this option is not selected and you attempt
1092 to execute a legacy ABI binary then the result will be
1093 UNPREDICTABLE (in fact it can be predicted that it won't work
1094 at all). If in doubt say Y.
1095
Mel Gormaneb335752009-05-13 17:34:48 +01001096config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001097 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001098
Russell King07a2f732008-10-01 21:39:58 +01001099# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001100config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001102
Russell King05944d72006-11-30 20:43:51 +00001103config ARCH_SPARSEMEM_ENABLE
1104 bool
1105
Russell King07a2f732008-10-01 21:39:58 +01001106config ARCH_SPARSEMEM_DEFAULT
1107 def_bool ARCH_SPARSEMEM_ENABLE
1108
Russell King05944d72006-11-30 20:43:51 +00001109config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001110 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001111
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001112config NODES_SHIFT
1113 int
1114 default "4" if ARCH_LH7A40X
1115 default "2"
1116 depends on NEED_MULTIPLE_NODES
1117
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001118config HIGHMEM
1119 bool "High Memory Support (EXPERIMENTAL)"
1120 depends on MMU && EXPERIMENTAL
1121 help
1122 The address space of ARM processors is only 4 Gigabytes large
1123 and it has to accommodate user address space, kernel address
1124 space as well as some memory mapped IO. That means that, if you
1125 have a large amount of physical memory and/or IO, not all of the
1126 memory can be "permanently mapped" by the kernel. The physical
1127 memory that is not permanently mapped is called "high memory".
1128
1129 Depending on the selected kernel/user memory split, minimum
1130 vmalloc space and actual amount of RAM, you may not need this
1131 option which should result in a slightly faster kernel.
1132
1133 If unsure, say n.
1134
Russell King65cec8e2009-08-17 20:02:06 +01001135config HIGHPTE
1136 bool "Allocate 2nd-level pagetables from highmem"
1137 depends on HIGHMEM
1138 depends on !OUTER_CACHE
1139
Dave Hansen3f22ab22005-06-23 00:07:43 -07001140source "mm/Kconfig"
1141
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142config LEDS
1143 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001144 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001145 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1147 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001148 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001149 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001150 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151 help
1152 If you say Y here, the LEDs on your machine will be used
1153 to provide useful information about your current system status.
1154
1155 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1156 be able to select which LEDs are active using the options below. If
1157 you are compiling a kernel for the EBSA-110 or the LART however, the
1158 red LED will simply flash regularly to indicate that the system is
1159 still functional. It is safe to say Y here if you have a CATS
1160 system, but the driver will do nothing.
1161
1162config LEDS_TIMER
1163 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001164 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1165 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001166 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001167 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168 default y if ARCH_EBSA110
1169 help
1170 If you say Y here, one of the system LEDs (the green one on the
1171 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1172 will flash regularly to indicate that the system is still
1173 operational. This is mainly useful to kernel hackers who are
1174 debugging unstable kernels.
1175
1176 The LART uses the same LED for both Timer LED and CPU usage LED
1177 functions. You may choose to use both, but the Timer LED function
1178 will overrule the CPU usage LED.
1179
1180config LEDS_CPU
1181 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001182 !ARCH_OMAP) \
1183 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1184 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185 depends on LEDS
1186 help
1187 If you say Y here, the red LED will be used to give a good real
1188 time indication of CPU usage, by lighting whenever the idle task
1189 is not currently executing.
1190
1191 The LART uses the same LED for both Timer LED and CPU usage LED
1192 functions. You may choose to use both, but the Timer LED function
1193 will overrule the CPU usage LED.
1194
1195config ALIGNMENT_TRAP
1196 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001197 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001198 default y if !ARCH_EBSA110
1199 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001200 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001201 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1202 address divisible by 4. On 32-bit ARM processors, these non-aligned
1203 fetch/store instructions will be emulated in software if you say
1204 here, which has a severe performance impact. This is necessary for
1205 correct operation of some network protocols. With an IP-only
1206 configuration it is safe to say N, otherwise say Y.
1207
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001208config UACCESS_WITH_MEMCPY
1209 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1210 depends on MMU && EXPERIMENTAL
1211 default y if CPU_FEROCEON
1212 help
1213 Implement faster copy_to_user and clear_user methods for CPU
1214 cores where a 8-word STM instruction give significantly higher
1215 memory write throughput than a sequence of individual 32bit stores.
1216
1217 A possible side effect is a slight increase in scheduling latency
1218 between threads sharing the same address space if they invoke
1219 such copy operations with large buffers.
1220
1221 However, if the CPU data cache is using a write-allocate mode,
1222 this option is unlikely to provide any performance gain.
1223
Linus Torvalds1da177e2005-04-16 15:20:36 -07001224endmenu
1225
1226menu "Boot options"
1227
1228# Compressed boot loader in ROM. Yes, we really want to ask about
1229# TEXT and BSS so we preserve their values in the config files.
1230config ZBOOT_ROM_TEXT
1231 hex "Compressed ROM boot loader base address"
1232 default "0"
1233 help
1234 The physical address at which the ROM-able zImage is to be
1235 placed in the target. Platforms which normally make use of
1236 ROM-able zImage formats normally set this to a suitable
1237 value in their defconfig file.
1238
1239 If ZBOOT_ROM is not enabled, this has no effect.
1240
1241config ZBOOT_ROM_BSS
1242 hex "Compressed ROM boot loader BSS address"
1243 default "0"
1244 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001245 The base address of an area of read/write memory in the target
1246 for the ROM-able zImage which must be available while the
1247 decompressor is running. It must be large enough to hold the
1248 entire decompressed kernel plus an additional 128 KiB.
1249 Platforms which normally make use of ROM-able zImage formats
1250 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251
1252 If ZBOOT_ROM is not enabled, this has no effect.
1253
1254config ZBOOT_ROM
1255 bool "Compressed boot loader in ROM/flash"
1256 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1257 help
1258 Say Y here if you intend to execute your compressed kernel image
1259 (zImage) directly from ROM or flash. If unsure, say N.
1260
1261config CMDLINE
1262 string "Default kernel command string"
1263 default ""
1264 help
1265 On some architectures (EBSA110 and CATS), there is currently no way
1266 for the boot loader to pass arguments to the kernel. For these
1267 architectures, you should supply some command-line options at build
1268 time by entering them here. As a minimum, you should specify the
1269 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1270
1271config XIP_KERNEL
1272 bool "Kernel Execute-In-Place from ROM"
1273 depends on !ZBOOT_ROM
1274 help
1275 Execute-In-Place allows the kernel to run from non-volatile storage
1276 directly addressable by the CPU, such as NOR flash. This saves RAM
1277 space since the text section of the kernel is not loaded from flash
1278 to RAM. Read-write sections, such as the data section and stack,
1279 are still copied to RAM. The XIP kernel is not compressed since
1280 it has to run directly from flash, so it will take more space to
1281 store it. The flash address used to link the kernel object files,
1282 and for storing it, is configuration dependent. Therefore, if you
1283 say Y here, you must know the proper physical address where to
1284 store the kernel image depending on your own flash memory usage.
1285
1286 Also note that the make target becomes "make xipImage" rather than
1287 "make zImage" or "make Image". The final kernel binary to put in
1288 ROM memory will be arch/arm/boot/xipImage.
1289
1290 If unsure, say N.
1291
1292config XIP_PHYS_ADDR
1293 hex "XIP Kernel Physical Location"
1294 depends on XIP_KERNEL
1295 default "0x00080000"
1296 help
1297 This is the physical address in your flash memory the kernel will
1298 be linked for and stored to. This address is dependent on your
1299 own flash usage.
1300
Richard Purdiec587e4a2007-02-06 21:29:00 +01001301config KEXEC
1302 bool "Kexec system call (EXPERIMENTAL)"
1303 depends on EXPERIMENTAL
1304 help
1305 kexec is a system call that implements the ability to shutdown your
1306 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001307 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001308 you can start any kernel with it, not just Linux.
1309
1310 It is an ongoing process to be certain the hardware in a machine
1311 is properly shutdown, so do not be surprised if this code does not
1312 initially work for you. It may help to enable device hotplugging
1313 support.
1314
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001315config ATAGS_PROC
1316 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001317 depends on KEXEC
1318 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001319 help
1320 Should the atags used to boot the kernel be exported in an "atags"
1321 file in procfs. Useful with kexec.
1322
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323endmenu
1324
Russell Kingac9d7ef2008-08-18 17:26:00 +01001325menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326
Ben Dooks89c52ed2009-07-30 23:23:24 +01001327if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001328
1329source "drivers/cpufreq/Kconfig"
1330
1331config CPU_FREQ_SA1100
1332 bool
Dmitry Artamonow7bc35b52009-02-20 10:16:01 +01001333 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334 default y
1335
1336config CPU_FREQ_SA1110
1337 bool
1338 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1339 default y
1340
1341config CPU_FREQ_INTEGRATOR
1342 tristate "CPUfreq driver for ARM Integrator CPUs"
1343 depends on ARCH_INTEGRATOR && CPU_FREQ
1344 default y
1345 help
1346 This enables the CPUfreq driver for ARM Integrator CPUs.
1347
1348 For details, take a look at <file:Documentation/cpu-freq>.
1349
1350 If in doubt, say Y.
1351
Russell King9e2697f2007-12-14 13:30:14 +00001352config CPU_FREQ_PXA
1353 bool
1354 depends on CPU_FREQ && ARCH_PXA && PXA25x
1355 default y
1356 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1357
Mark Brownb3748dd2009-06-15 11:23:20 +01001358config CPU_FREQ_S3C64XX
1359 bool "CPUfreq support for Samsung S3C64XX CPUs"
1360 depends on CPU_FREQ && CPU_S3C6410
1361
Ben Dooks9d56c022009-07-30 23:23:25 +01001362config CPU_FREQ_S3C
1363 bool
1364 help
1365 Internal configuration node for common cpufreq on Samsung SoC
1366
1367config CPU_FREQ_S3C24XX
1368 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1369 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1370 select CPU_FREQ_S3C
1371 help
1372 This enables the CPUfreq driver for the Samsung S3C24XX family
1373 of CPUs.
1374
1375 For details, take a look at <file:Documentation/cpu-freq>.
1376
1377 If in doubt, say N.
1378
1379config CPU_FREQ_S3C24XX_PLL
1380 bool "Support CPUfreq changing of PLL frequency"
1381 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1382 help
1383 Compile in support for changing the PLL frequency from the
1384 S3C24XX series CPUfreq driver. The PLL takes time to settle
1385 after a frequency change, so by default it is not enabled.
1386
1387 This also means that the PLL tables for the selected CPU(s) will
1388 be built which may increase the size of the kernel image.
1389
1390config CPU_FREQ_S3C24XX_DEBUG
1391 bool "Debug CPUfreq Samsung driver core"
1392 depends on CPU_FREQ_S3C24XX
1393 help
1394 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1395
1396config CPU_FREQ_S3C24XX_IODEBUG
1397 bool "Debug CPUfreq Samsung driver IO timing"
1398 depends on CPU_FREQ_S3C24XX
1399 help
1400 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1401
Ben Dookse6d197a2009-07-30 23:23:42 +01001402config CPU_FREQ_S3C24XX_DEBUGFS
1403 bool "Export debugfs for CPUFreq"
1404 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1405 help
1406 Export status information via debugfs.
1407
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408endif
1409
Russell Kingac9d7ef2008-08-18 17:26:00 +01001410source "drivers/cpuidle/Kconfig"
1411
1412endmenu
1413
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414menu "Floating point emulation"
1415
1416comment "At least one emulation must be selected"
1417
1418config FPE_NWFPE
1419 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001420 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001421 ---help---
1422 Say Y to include the NWFPE floating point emulator in the kernel.
1423 This is necessary to run most binaries. Linux does not currently
1424 support floating point hardware so you need to say Y here even if
1425 your machine has an FPA or floating point co-processor podule.
1426
1427 You may say N here if you are going to load the Acorn FPEmulator
1428 early in the bootup.
1429
1430config FPE_NWFPE_XP
1431 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001432 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001433 help
1434 Say Y to include 80-bit support in the kernel floating-point
1435 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1436 Note that gcc does not generate 80-bit operations by default,
1437 so in most cases this option only enlarges the size of the
1438 floating point emulator without any good reason.
1439
1440 You almost surely want to say N here.
1441
1442config FPE_FASTFPE
1443 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001444 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445 ---help---
1446 Say Y here to include the FAST floating point emulator in the kernel.
1447 This is an experimental much faster emulator which now also has full
1448 precision for the mantissa. It does not support any exceptions.
1449 It is very simple, and approximately 3-6 times faster than NWFPE.
1450
1451 It should be sufficient for most programs. It may be not suitable
1452 for scientific calculations, but you have to check this for yourself.
1453 If you do not feel you need a faster FP emulation you should better
1454 choose NWFPE.
1455
1456config VFP
1457 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001458 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001459 help
1460 Say Y to include VFP support code in the kernel. This is needed
1461 if your hardware includes a VFP unit.
1462
1463 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1464 release notes and additional status information.
1465
1466 Say N if your target does not have VFP hardware.
1467
Catalin Marinas25ebee02007-09-25 15:22:24 +01001468config VFPv3
1469 bool
1470 depends on VFP
1471 default y if CPU_V7
1472
Catalin Marinasb5872db2008-01-10 19:16:17 +01001473config NEON
1474 bool "Advanced SIMD (NEON) Extension support"
1475 depends on VFPv3 && CPU_V7
1476 help
1477 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1478 Extension.
1479
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480endmenu
1481
1482menu "Userspace binary formats"
1483
1484source "fs/Kconfig.binfmt"
1485
1486config ARTHUR
1487 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001488 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001489 help
1490 Say Y here to include the kernel code necessary if you want to run
1491 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1492 experimental; if this sounds frightening, say N and sleep in peace.
1493 You can also say M here to compile this support as a module (which
1494 will be called arthur).
1495
1496endmenu
1497
1498menu "Power management options"
1499
Russell Kingeceab4a2005-11-15 11:31:41 +00001500source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001501
Johannes Bergf4cb5702007-12-08 02:14:00 +01001502config ARCH_SUSPEND_POSSIBLE
1503 def_bool y
1504
Linus Torvalds1da177e2005-04-16 15:20:36 -07001505endmenu
1506
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001507source "net/Kconfig"
1508
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001509source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001510
1511source "fs/Kconfig"
1512
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513source "arch/arm/Kconfig.debug"
1514
1515source "security/Kconfig"
1516
1517source "crypto/Kconfig"
1518
1519source "lib/Kconfig"