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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
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100315 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100316 help
317 Support for Freescale MXC/iMX-based family of processors
318
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100319config ARCH_STMP3XXX
320 bool "Freescale STMP3xxx"
321 select CPU_ARM926T
322 select HAVE_CLK
323 select COMMON_CLKDEV
324 select ARCH_REQUIRE_GPIOLIB
325 select GENERIC_TIME
326 select GENERIC_CLOCKEVENTS
327 select GENERIC_GPIO
328 select USB_ARCH_HAS_EHCI
329 help
330 Support for systems based on the Freescale 3xxx CPUs.
331
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100332config ARCH_NETX
333 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000334 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100335 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100336 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100337 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000338 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100339 This enables support for systems based on the Hilscher NetX Soc
340
341config ARCH_H720X
342 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000343 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100344 select ISA_DMA_API
345 help
346 This enables support for systems based on the Hynix HMS720x
347
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100348config ARCH_NOMADIK
349 bool "STMicroelectronics Nomadik"
350 select ARM_AMBA
351 select ARM_VIC
352 select CPU_ARM926T
353 select HAVE_CLK
354 select COMMON_CLKDEV
355 select GENERIC_TIME
356 select GENERIC_CLOCKEVENTS
Alessandro Rubini2ec1d352009-07-02 15:29:12 +0100357 select GENERIC_GPIO
358 select ARCH_REQUIRE_GPIOLIB
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100359 help
360 Support for the Nomadik platform by ST-Ericsson
361
Russell King3b938be2007-05-12 11:25:44 +0100362config ARCH_IOP13XX
363 bool "IOP13xx-based"
364 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000365 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100366 select PLAT_IOP
367 select PCI
368 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100369 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100370 help
371 Support for Intel's IOP13XX (XScale) family of processors.
372
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100373config ARCH_IOP32X
374 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100375 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000376 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100377 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100378 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100379 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100380 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000381 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100382 Support for Intel's 80219 and IOP32X (XScale) family of
383 processors.
384
385config ARCH_IOP33X
386 bool "IOP33x-based"
387 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000388 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100389 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100390 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100391 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100392 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100393 help
394 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395
Russell King3b938be2007-05-12 11:25:44 +0100396config ARCH_IXP23XX
397 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100398 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000399 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100400 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100401 help
Russell King3b938be2007-05-12 11:25:44 +0100402 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403
404config ARCH_IXP2000
405 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100406 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000407 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100408 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000409 help
410 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411
Russell King3b938be2007-05-12 11:25:44 +0100412config ARCH_IXP4XX
413 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100414 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000415 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100416 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100417 select GENERIC_TIME
418 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100419 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100420 help
Russell King3b938be2007-05-12 11:25:44 +0100421 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100422
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423config ARCH_L7200
424 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000425 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 select FIQ
427 help
428 Say Y here if you intend to run this kernel on a LinkUp Systems
429 L7200 Software Development Board which uses an ARM720T processor.
430 Information on this board can be obtained at:
431
432 <http://www.linkupsys.com/>
433
434 If you have any questions or comments about the Linux kernel port
435 to this board, send e-mail to <sjhill@cotw.com>.
436
Saeed Bisharaedabd382009-08-06 15:12:43 +0300437config ARCH_DOVE
438 bool "Marvell Dove"
439 select PCI
440 select GENERIC_GPIO
441 select ARCH_REQUIRE_GPIOLIB
442 select GENERIC_TIME
443 select GENERIC_CLOCKEVENTS
444 select PLAT_ORION
445 help
446 Support for the Marvell Dove SoC 88AP510
447
Saeed Bishara651c74c2008-06-22 22:45:06 +0200448config ARCH_KIRKWOOD
449 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000450 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200451 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200452 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700453 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200454 select GENERIC_TIME
455 select GENERIC_CLOCKEVENTS
456 select PLAT_ORION
457 help
458 Support for the following Marvell Kirkwood series SoCs:
459 88F6180, 88F6192 and 88F6281.
460
Russell King788c9702009-04-26 14:21:59 +0100461config ARCH_LOKI
462 bool "Marvell Loki (88RC8480)"
463 select CPU_FEROCEON
464 select GENERIC_TIME
465 select GENERIC_CLOCKEVENTS
466 select PLAT_ORION
467 help
468 Support for the Marvell Loki (88RC8480) SoC.
469
470config ARCH_MV78XX0
471 bool "Marvell MV78xx0"
472 select CPU_FEROCEON
473 select PCI
474 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700475 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100476 select GENERIC_TIME
477 select GENERIC_CLOCKEVENTS
478 select PLAT_ORION
479 help
480 Support for the following Marvell MV78xx0 series SoCs:
481 MV781x0, MV782x0.
482
483config ARCH_ORION5X
484 bool "Marvell Orion"
485 depends on MMU
486 select CPU_FEROCEON
487 select PCI
488 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700489 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100490 select GENERIC_TIME
491 select GENERIC_CLOCKEVENTS
492 select PLAT_ORION
493 help
494 Support for the following Marvell Orion 5x series SoCs:
495 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
496 Orion-2 (5281), Orion-1-90 (6183).
497
498config ARCH_MMP
499 bool "Marvell PXA168/910"
500 depends on MMU
501 select GENERIC_GPIO
502 select ARCH_REQUIRE_GPIOLIB
503 select HAVE_CLK
504 select COMMON_CLKDEV
505 select GENERIC_TIME
506 select GENERIC_CLOCKEVENTS
507 select TICK_ONESHOT
508 select PLAT_PXA
509 help
510 Support for Marvell's PXA168/910 processor line.
511
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100512config ARCH_KS8695
513 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000514 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100515 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000516 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100517 help
518 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
519 System-on-Chip devices.
520
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100521config ARCH_NS9XXX
522 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000523 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100524 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100525 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100526 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700527 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100528 help
529 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
530 System.
531
532 <http://www.digi.com/products/microprocessors/index.jsp>
533
Russell King788c9702009-04-26 14:21:59 +0100534config ARCH_W90X900
535 bool "Nuvoton W90X900 CPU"
536 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100537 select ARCH_REQUIRE_GPIOLIB
538 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100539 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100540 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100541 select GENERIC_TIME
542 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200543 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100544 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
545 At present, the w90x900 has been renamed nuc900, regarding
546 the ARM series product line, you can login the following
547 link address to know more.
548
549 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
550 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400551
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100552config ARCH_PNX4008
553 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000554 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700555 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100556 help
557 This enables support for Philips PNX4008 mobile platform.
558
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700560 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100561 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500562 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100563 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800564 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700565 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000566 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700567 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100568 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100569 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000570 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800571 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000572 help
eric miao2c8086a2007-09-11 19:13:17 -0700573 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574
Russell King788c9702009-04-26 14:21:59 +0100575config ARCH_MSM
576 bool "Qualcomm MSM"
577 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800578 select GENERIC_TIME
579 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800580 help
Russell King788c9702009-04-26 14:21:59 +0100581 Support for Qualcomm MSM7K based systems. This runs on the ARM11
582 apps processor of the MSM7K and depends on a shared memory
583 interface to the ARM9 modem processor which runs the baseband stack
584 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800585
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586config ARCH_RPC
587 bool "RiscPC"
588 select ARCH_ACORN
589 select FIQ
590 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100591 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100592 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000593 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000594 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100595 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596 help
597 On the Acorn Risc-PC, Linux can support the internal IDE disk and
598 CD-ROM interface, serial and parallel port, and the floppy drive.
599
600config ARCH_SA1100
601 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000602 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100603 select ISA
Russell King05944d72006-11-30 20:43:51 +0000604 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500605 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100606 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000607 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800608 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000609 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100610 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700611 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100612 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700613 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000614 help
615 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700616
617config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100618 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800619 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100620 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700621 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622 help
623 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
624 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000625 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626
Ben Dooksa08ab632008-10-21 14:06:39 +0100627config ARCH_S3C64XX
628 bool "Samsung S3C64XX"
629 select GENERIC_GPIO
630 select HAVE_CLK
Ben Dooks89c52ed2009-07-30 23:23:24 +0100631 select ARCH_HAS_CPUFREQ
Ben Dooksa08ab632008-10-21 14:06:39 +0100632 help
633 Samsung S3C64XX series based systems
634
Byungho Min5a7652f2009-06-23 21:39:42 +0900635config ARCH_S5PC1XX
636 bool "Samsung S5PC1XX"
637 select GENERIC_GPIO
638 select HAVE_CLK
639 select CPU_V7
640 help
641 Samsung S5PC1XX series based systems
642
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643config ARCH_SHARK
644 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000645 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100646 select ISA
647 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100648 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100649 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000650 help
651 Support for the StrongARM based Digital DNARD machine, also known
652 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653
654config ARCH_LH7A40X
655 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000656 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100657 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
658 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659 help
660 Say Y here for systems based on one of the Sharp LH7A40X
661 System on a Chip processors. These CPUs include an ARM922T
662 core with a wide array of integrated devices for
663 hand-held and low-power applications.
664
Linus Walleijd98aac72009-04-27 10:21:46 +0100665config ARCH_U300
666 bool "ST-Ericsson U300 Series"
667 depends on MMU
668 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100669 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100670 select ARM_AMBA
671 select ARM_VIC
672 select GENERIC_TIME
673 select GENERIC_CLOCKEVENTS
674 select HAVE_CLK
675 select COMMON_CLKDEV
676 select GENERIC_GPIO
677 help
678 Support for ST-Ericsson U300 series mobile platforms.
679
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100680config ARCH_DAVINCI
681 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000682 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100683 select GENERIC_TIME
684 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100685 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700686 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700687 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100688 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700689 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700690 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700691 select GENERIC_ALLOCATOR
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100692 help
693 Support for TI's DaVinci platform.
694
Russell King3b938be2007-05-12 11:25:44 +0100695config ARCH_OMAP
696 bool "TI OMAP"
697 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700698 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700699 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100700 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100701 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700702 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100703 help
704 Support for TI's OMAP platform (OMAP1 and OMAP2).
705
Leo Chen6288e282009-08-07 19:46:15 +0100706config ARCH_BCMRING
707 bool "Broadcom BCMRING"
708 depends on MMU
709 select CPU_V6
710 select ARM_AMBA
711 select COMMON_CLKDEV
712 select GENERIC_TIME
713 select GENERIC_CLOCKEVENTS
714 select ARCH_WANT_OPTIONAL_GPIOLIB
715 help
716 Support for Broadcom's BCMRing platform.
717
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100718config ARCH_U8500
719 bool "ST-Ericsson U8500 Series"
720 select CPU_V7
721 select ARM_AMBA
722 select GENERIC_TIME
723 select GENERIC_CLOCKEVENTS
724 select COMMON_CLKDEV
725 help
726 Support for ST-Ericsson's Ux500 architecture
727
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728endchoice
729
730source "arch/arm/mach-clps711x/Kconfig"
731
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000732source "arch/arm/mach-ep93xx/Kconfig"
733
Linus Torvalds1da177e2005-04-16 15:20:36 -0700734source "arch/arm/mach-footbridge/Kconfig"
735
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200736source "arch/arm/mach-gemini/Kconfig"
737
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738source "arch/arm/mach-integrator/Kconfig"
739
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100740source "arch/arm/mach-iop32x/Kconfig"
741
742source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743
Dan Williams285f5fa2006-12-07 02:59:39 +0100744source "arch/arm/mach-iop13xx/Kconfig"
745
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746source "arch/arm/mach-ixp4xx/Kconfig"
747
748source "arch/arm/mach-ixp2000/Kconfig"
749
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100750source "arch/arm/mach-ixp23xx/Kconfig"
751
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200752source "arch/arm/mach-loki/Kconfig"
753
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200754source "arch/arm/mach-mv78xx0/Kconfig"
755
Linus Torvalds1da177e2005-04-16 15:20:36 -0700756source "arch/arm/mach-pxa/Kconfig"
Eric Miaobd5ce432009-01-20 12:06:01 +0800757source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758
Eric Miao49cbe782009-01-20 14:15:18 +0800759source "arch/arm/mach-mmp/Kconfig"
760
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761source "arch/arm/mach-sa1100/Kconfig"
762
Tony Lindgrend48af152005-07-10 19:58:17 +0100763source "arch/arm/plat-omap/Kconfig"
764
765source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766
Tony Lindgren1dbae812005-11-10 14:26:51 +0000767source "arch/arm/mach-omap2/Kconfig"
768
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400769source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400770
Saeed Bishara651c74c2008-06-22 22:45:06 +0200771source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772
Saeed Bisharaedabd382009-08-06 15:12:43 +0300773source "arch/arm/mach-dove/Kconfig"
774
Ben Dookscf383672009-11-10 00:14:58 +0000775source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100776source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100777source "arch/arm/plat-s3c64xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100778source "arch/arm/plat-s3c/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900779source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100780
781if ARCH_S3C2410
782source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100784source "arch/arm/mach-s3c2412/Kconfig"
785source "arch/arm/mach-s3c2440/Kconfig"
786source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100787source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100788endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700789
Ben Dooksa08ab632008-10-21 14:06:39 +0100790if ARCH_S3C64XX
791source "arch/arm/mach-s3c6400/Kconfig"
792source "arch/arm/mach-s3c6410/Kconfig"
793endif
794
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100795source "arch/arm/plat-stmp3xxx/Kconfig"
796
Byungho Min5a7652f2009-06-23 21:39:42 +0900797if ARCH_S5PC1XX
798source "arch/arm/mach-s5pc100/Kconfig"
799endif
800
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801source "arch/arm/mach-lh7a40x/Kconfig"
802
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803source "arch/arm/mach-h720x/Kconfig"
804
805source "arch/arm/mach-versatile/Kconfig"
806
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100807source "arch/arm/mach-aaec2000/Kconfig"
808
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000809source "arch/arm/mach-realview/Kconfig"
810
Andrew Victor9d041262007-02-05 11:42:07 +0100811source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000812
Quinn Jensen52c543f2007-07-09 22:06:53 +0100813source "arch/arm/plat-mxc/Kconfig"
814
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100815source "arch/arm/mach-nomadik/Kconfig"
Srinidhi Kasagar59b559d2009-11-12 06:20:54 +0100816source "arch/arm/plat-nomadik/Kconfig"
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100817
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100818source "arch/arm/mach-netx/Kconfig"
819
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100820source "arch/arm/mach-ns9xxx/Kconfig"
821
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100822source "arch/arm/mach-davinci/Kconfig"
823
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100824source "arch/arm/mach-ks8695/Kconfig"
825
Brian Swetland9e73c842007-11-26 04:12:13 -0800826source "arch/arm/mach-msm/Kconfig"
827
Linus Walleijd98aac72009-04-27 10:21:46 +0100828source "arch/arm/mach-u300/Kconfig"
829
wanzongshun7ec80dd2008-12-03 03:55:38 +0100830source "arch/arm/mach-w90x900/Kconfig"
831
Leo Chen6288e282009-08-07 19:46:15 +0100832source "arch/arm/mach-bcmring/Kconfig"
833
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100834source "arch/arm/mach-ux500/Kconfig"
835
Linus Torvalds1da177e2005-04-16 15:20:36 -0700836# Definitions to make life easier
837config ARCH_ACORN
838 bool
839
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100840config PLAT_IOP
841 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700842 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700843 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100844
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400845config PLAT_ORION
846 bool
847
Eric Miaobd5ce432009-01-20 12:06:01 +0800848config PLAT_PXA
849 bool
850
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851source arch/arm/mm/Kconfig
852
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100853config IWMMXT
854 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800855 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
856 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100857 help
858 Enable support for iWMMXt context switching at run time if
859 running on a CPU that supports it.
860
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
862config XSCALE_PMU
863 bool
864 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
865 default y
866
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100867if !MMU
868source "arch/arm/Kconfig-nommu"
869endif
870
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100871config ARM_ERRATA_411920
872 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
873 depends on CPU_V6 && !SMP
874 help
875 Invalidation of the Instruction Cache operation can
876 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
877 It does not affect the MPCore. This option enables the ARM Ltd.
878 recommended workaround.
879
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100880config ARM_ERRATA_430973
881 bool "ARM errata: Stale prediction on replaced interworking branch"
882 depends on CPU_V7
883 help
884 This option enables the workaround for the 430973 Cortex-A8
885 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
886 interworking branch is replaced with another code sequence at the
887 same virtual address, whether due to self-modifying code or virtual
888 to physical address re-mapping, Cortex-A8 does not recover from the
889 stale interworking branch prediction. This results in Cortex-A8
890 executing the new code sequence in the incorrect ARM or Thumb state.
891 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
892 and also flushes the branch target cache at every context switch.
893 Note that setting specific bits in the ACTLR register may not be
894 available in non-secure mode.
895
Catalin Marinas855c5512009-04-30 17:06:15 +0100896config ARM_ERRATA_458693
897 bool "ARM errata: Processor deadlock when a false hazard is created"
898 depends on CPU_V7
899 help
900 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
901 erratum. For very specific sequences of memory operations, it is
902 possible for a hazard condition intended for a cache line to instead
903 be incorrectly associated with a different cache line. This false
904 hazard might then cause a processor deadlock. The workaround enables
905 the L1 caching of the NEON accesses and disables the PLD instruction
906 in the ACTLR register. Note that setting specific bits in the ACTLR
907 register may not be available in non-secure mode.
908
Catalin Marinas0516e462009-04-30 17:06:20 +0100909config ARM_ERRATA_460075
910 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
911 depends on CPU_V7
912 help
913 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
914 erratum. Any asynchronous access to the L2 cache may encounter a
915 situation in which recent store transactions to the L2 cache are lost
916 and overwritten with stale memory contents from external memory. The
917 workaround disables the write-allocate mode for the L2 cache via the
918 ACTLR register. Note that setting specific bits in the ACTLR register
919 may not be available in non-secure mode.
920
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921endmenu
922
923source "arch/arm/common/Kconfig"
924
925config FORCE_MAX_ZONEORDER
926 int
927 depends on SA1111
928 default "9"
929
930menu "Bus support"
931
932config ARM_AMBA
933 bool
934
935config ISA
936 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700937 help
938 Find out whether you have ISA slots on your motherboard. ISA is the
939 name of a bus system, i.e. the way the CPU talks to the other stuff
940 inside your box. Other bus systems are PCI, EISA, MicroChannel
941 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
942 newer boards don't support it. If you have ISA, say Y, otherwise N.
943
Russell King065909b2006-01-04 15:44:16 +0000944# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945config ISA_DMA
946 bool
Russell King065909b2006-01-04 15:44:16 +0000947 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948
Russell King065909b2006-01-04 15:44:16 +0000949# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100950config ISA_DMA_API
951 bool
Al Viro5cae8412005-05-04 05:39:22 +0100952
Linus Torvalds1da177e2005-04-16 15:20:36 -0700953config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100954 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955 help
956 Find out whether you have a PCI motherboard. PCI is the name of a
957 bus system, i.e. the way the CPU talks to the other stuff inside
958 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
959 VESA. If you have PCI, say Y, otherwise N.
960
Matthew Wilcox36e23592007-07-10 10:54:40 -0600961config PCI_SYSCALL
962 def_bool PCI
963
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964# Select the host bridge type
965config PCI_HOST_VIA82C505
966 bool
967 depends on PCI && ARCH_SHARK
968 default y
969
Mike Rapoporta0113a92007-11-25 08:55:34 +0100970config PCI_HOST_ITE8152
971 bool
972 depends on PCI && MACH_ARMCORE
973 default y
974 select DMABOUNCE
975
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976source "drivers/pci/Kconfig"
977
978source "drivers/pcmcia/Kconfig"
979
980endmenu
981
982menu "Kernel Features"
983
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100984source "kernel/time/Kconfig"
985
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986config SMP
987 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +0100988 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100989 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +0100990 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +0200991 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100992 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700993 help
994 This enables support for systems with more than one CPU. If you have
995 a system with only one CPU, like most personal computers, say N. If
996 you have a system with more than one CPU, say Y.
997
998 If you say N here, the kernel will run on single and multiprocessor
999 machines, but will use only one CPU of a multiprocessor machine. If
1000 you say Y here, the kernel will run on many, but not all, single
1001 processor machines. On a single processor machine, the kernel will
1002 run faster if you say N here.
1003
Adrian Bunk03502fa2008-02-03 15:50:21 +02001004 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1006 <http://www.linuxdoc.org/docs.html#howto>.
1007
1008 If you don't know what to do here, say N.
1009
Russell Kinga8cbcd92009-05-16 11:51:14 +01001010config HAVE_ARM_SCU
1011 bool
1012 depends on SMP
1013 help
1014 This option enables support for the ARM system coherency unit
1015
Russell Kingf32f4ce2009-05-16 12:14:21 +01001016config HAVE_ARM_TWD
1017 bool
1018 depends on SMP
1019 help
1020 This options enables support for the ARM timer and watchdog unit
1021
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001022choice
1023 prompt "Memory split"
1024 default VMSPLIT_3G
1025 help
1026 Select the desired split between kernel and user memory.
1027
1028 If you are not absolutely sure what you are doing, leave this
1029 option alone!
1030
1031 config VMSPLIT_3G
1032 bool "3G/1G user/kernel split"
1033 config VMSPLIT_2G
1034 bool "2G/2G user/kernel split"
1035 config VMSPLIT_1G
1036 bool "1G/3G user/kernel split"
1037endchoice
1038
1039config PAGE_OFFSET
1040 hex
1041 default 0x40000000 if VMSPLIT_1G
1042 default 0x80000000 if VMSPLIT_2G
1043 default 0xC0000000
1044
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045config NR_CPUS
1046 int "Maximum number of CPUs (2-32)"
1047 range 2 32
1048 depends on SMP
1049 default "4"
1050
Russell Kinga054a812005-11-02 22:24:33 +00001051config HOTPLUG_CPU
1052 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1053 depends on SMP && HOTPLUG && EXPERIMENTAL
1054 help
1055 Say Y here to experiment with turning CPUs off and on. CPUs
1056 can be controlled through /sys/devices/system/cpu.
1057
Russell King37ee16a2005-11-08 19:08:05 +00001058config LOCAL_TIMERS
1059 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001060 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001061 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001062 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001063 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001064 help
1065 Enable support for local timers on SMP platforms, rather then the
1066 legacy IPI broadcast method. Local timers allows the system
1067 accounting to be spread across the timer interval, preventing a
1068 "thundering herd" at every timer tick.
1069
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001070source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071
Russell Kingf8065812006-03-02 22:41:59 +00001072config HZ
1073 int
1074 default 128 if ARCH_L7200
1075 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +00001076 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001077 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001078 default 100
1079
Catalin Marinas16c79652009-07-24 12:33:02 +01001080config THUMB2_KERNEL
1081 bool "Compile the kernel in Thumb-2 mode"
1082 depends on CPU_V7 && EXPERIMENTAL
1083 select AEABI
1084 select ARM_ASM_UNIFIED
1085 help
1086 By enabling this option, the kernel will be compiled in
1087 Thumb-2 mode. A compiler/assembler that understand the unified
1088 ARM-Thumb syntax is needed.
1089
1090 If unsure, say N.
1091
Catalin Marinas0becb082009-07-24 12:32:53 +01001092config ARM_ASM_UNIFIED
1093 bool
1094
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001095config AEABI
1096 bool "Use the ARM EABI to compile the kernel"
1097 help
1098 This option allows for the kernel to be compiled using the latest
1099 ARM ABI (aka EABI). This is only useful if you are using a user
1100 space environment that is also compiled with EABI.
1101
1102 Since there are major incompatibilities between the legacy ABI and
1103 EABI, especially with regard to structure member alignment, this
1104 option also changes the kernel syscall calling convention to
1105 disambiguate both ABIs and allow for backward compatibility support
1106 (selected with CONFIG_OABI_COMPAT).
1107
1108 To use this you need GCC version 4.0.0 or later.
1109
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001110config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001111 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001112 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001113 default y
1114 help
1115 This option preserves the old syscall interface along with the
1116 new (ARM EABI) one. It also provides a compatibility layer to
1117 intercept syscalls that have structure arguments which layout
1118 in memory differs between the legacy ABI and the new ARM EABI
1119 (only for non "thumb" binaries). This option adds a tiny
1120 overhead to all syscalls and produces a slightly larger kernel.
1121 If you know you'll be using only pure EABI user space then you
1122 can say N here. If this option is not selected and you attempt
1123 to execute a legacy ABI binary then the result will be
1124 UNPREDICTABLE (in fact it can be predicted that it won't work
1125 at all). If in doubt say Y.
1126
Mel Gormaneb335752009-05-13 17:34:48 +01001127config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001128 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001129
Russell King07a2f732008-10-01 21:39:58 +01001130# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001131config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133
Russell King05944d72006-11-30 20:43:51 +00001134config ARCH_SPARSEMEM_ENABLE
1135 bool
1136
Russell King07a2f732008-10-01 21:39:58 +01001137config ARCH_SPARSEMEM_DEFAULT
1138 def_bool ARCH_SPARSEMEM_ENABLE
1139
Russell King05944d72006-11-30 20:43:51 +00001140config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001141 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001142
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001143config NODES_SHIFT
1144 int
1145 default "4" if ARCH_LH7A40X
1146 default "2"
1147 depends on NEED_MULTIPLE_NODES
1148
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001149config HIGHMEM
1150 bool "High Memory Support (EXPERIMENTAL)"
1151 depends on MMU && EXPERIMENTAL
1152 help
1153 The address space of ARM processors is only 4 Gigabytes large
1154 and it has to accommodate user address space, kernel address
1155 space as well as some memory mapped IO. That means that, if you
1156 have a large amount of physical memory and/or IO, not all of the
1157 memory can be "permanently mapped" by the kernel. The physical
1158 memory that is not permanently mapped is called "high memory".
1159
1160 Depending on the selected kernel/user memory split, minimum
1161 vmalloc space and actual amount of RAM, you may not need this
1162 option which should result in a slightly faster kernel.
1163
1164 If unsure, say n.
1165
Russell King65cec8e2009-08-17 20:02:06 +01001166config HIGHPTE
1167 bool "Allocate 2nd-level pagetables from highmem"
1168 depends on HIGHMEM
1169 depends on !OUTER_CACHE
1170
Dave Hansen3f22ab22005-06-23 00:07:43 -07001171source "mm/Kconfig"
1172
Linus Torvalds1da177e2005-04-16 15:20:36 -07001173config LEDS
1174 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001175 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001176 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1178 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001179 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001180 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001181 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182 help
1183 If you say Y here, the LEDs on your machine will be used
1184 to provide useful information about your current system status.
1185
1186 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1187 be able to select which LEDs are active using the options below. If
1188 you are compiling a kernel for the EBSA-110 or the LART however, the
1189 red LED will simply flash regularly to indicate that the system is
1190 still functional. It is safe to say Y here if you have a CATS
1191 system, but the driver will do nothing.
1192
1193config LEDS_TIMER
1194 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001195 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1196 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001198 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001199 default y if ARCH_EBSA110
1200 help
1201 If you say Y here, one of the system LEDs (the green one on the
1202 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1203 will flash regularly to indicate that the system is still
1204 operational. This is mainly useful to kernel hackers who are
1205 debugging unstable kernels.
1206
1207 The LART uses the same LED for both Timer LED and CPU usage LED
1208 functions. You may choose to use both, but the Timer LED function
1209 will overrule the CPU usage LED.
1210
1211config LEDS_CPU
1212 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001213 !ARCH_OMAP) \
1214 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1215 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216 depends on LEDS
1217 help
1218 If you say Y here, the red LED will be used to give a good real
1219 time indication of CPU usage, by lighting whenever the idle task
1220 is not currently executing.
1221
1222 The LART uses the same LED for both Timer LED and CPU usage LED
1223 functions. You may choose to use both, but the Timer LED function
1224 will overrule the CPU usage LED.
1225
1226config ALIGNMENT_TRAP
1227 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001228 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229 default y if !ARCH_EBSA110
1230 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001231 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001232 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1233 address divisible by 4. On 32-bit ARM processors, these non-aligned
1234 fetch/store instructions will be emulated in software if you say
1235 here, which has a severe performance impact. This is necessary for
1236 correct operation of some network protocols. With an IP-only
1237 configuration it is safe to say N, otherwise say Y.
1238
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001239config UACCESS_WITH_MEMCPY
1240 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1241 depends on MMU && EXPERIMENTAL
1242 default y if CPU_FEROCEON
1243 help
1244 Implement faster copy_to_user and clear_user methods for CPU
1245 cores where a 8-word STM instruction give significantly higher
1246 memory write throughput than a sequence of individual 32bit stores.
1247
1248 A possible side effect is a slight increase in scheduling latency
1249 between threads sharing the same address space if they invoke
1250 such copy operations with large buffers.
1251
1252 However, if the CPU data cache is using a write-allocate mode,
1253 this option is unlikely to provide any performance gain.
1254
Linus Torvalds1da177e2005-04-16 15:20:36 -07001255endmenu
1256
1257menu "Boot options"
1258
1259# Compressed boot loader in ROM. Yes, we really want to ask about
1260# TEXT and BSS so we preserve their values in the config files.
1261config ZBOOT_ROM_TEXT
1262 hex "Compressed ROM boot loader base address"
1263 default "0"
1264 help
1265 The physical address at which the ROM-able zImage is to be
1266 placed in the target. Platforms which normally make use of
1267 ROM-able zImage formats normally set this to a suitable
1268 value in their defconfig file.
1269
1270 If ZBOOT_ROM is not enabled, this has no effect.
1271
1272config ZBOOT_ROM_BSS
1273 hex "Compressed ROM boot loader BSS address"
1274 default "0"
1275 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001276 The base address of an area of read/write memory in the target
1277 for the ROM-able zImage which must be available while the
1278 decompressor is running. It must be large enough to hold the
1279 entire decompressed kernel plus an additional 128 KiB.
1280 Platforms which normally make use of ROM-able zImage formats
1281 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001282
1283 If ZBOOT_ROM is not enabled, this has no effect.
1284
1285config ZBOOT_ROM
1286 bool "Compressed boot loader in ROM/flash"
1287 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1288 help
1289 Say Y here if you intend to execute your compressed kernel image
1290 (zImage) directly from ROM or flash. If unsure, say N.
1291
1292config CMDLINE
1293 string "Default kernel command string"
1294 default ""
1295 help
1296 On some architectures (EBSA110 and CATS), there is currently no way
1297 for the boot loader to pass arguments to the kernel. For these
1298 architectures, you should supply some command-line options at build
1299 time by entering them here. As a minimum, you should specify the
1300 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1301
1302config XIP_KERNEL
1303 bool "Kernel Execute-In-Place from ROM"
1304 depends on !ZBOOT_ROM
1305 help
1306 Execute-In-Place allows the kernel to run from non-volatile storage
1307 directly addressable by the CPU, such as NOR flash. This saves RAM
1308 space since the text section of the kernel is not loaded from flash
1309 to RAM. Read-write sections, such as the data section and stack,
1310 are still copied to RAM. The XIP kernel is not compressed since
1311 it has to run directly from flash, so it will take more space to
1312 store it. The flash address used to link the kernel object files,
1313 and for storing it, is configuration dependent. Therefore, if you
1314 say Y here, you must know the proper physical address where to
1315 store the kernel image depending on your own flash memory usage.
1316
1317 Also note that the make target becomes "make xipImage" rather than
1318 "make zImage" or "make Image". The final kernel binary to put in
1319 ROM memory will be arch/arm/boot/xipImage.
1320
1321 If unsure, say N.
1322
1323config XIP_PHYS_ADDR
1324 hex "XIP Kernel Physical Location"
1325 depends on XIP_KERNEL
1326 default "0x00080000"
1327 help
1328 This is the physical address in your flash memory the kernel will
1329 be linked for and stored to. This address is dependent on your
1330 own flash usage.
1331
Richard Purdiec587e4a2007-02-06 21:29:00 +01001332config KEXEC
1333 bool "Kexec system call (EXPERIMENTAL)"
1334 depends on EXPERIMENTAL
1335 help
1336 kexec is a system call that implements the ability to shutdown your
1337 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001338 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001339 you can start any kernel with it, not just Linux.
1340
1341 It is an ongoing process to be certain the hardware in a machine
1342 is properly shutdown, so do not be surprised if this code does not
1343 initially work for you. It may help to enable device hotplugging
1344 support.
1345
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001346config ATAGS_PROC
1347 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001348 depends on KEXEC
1349 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001350 help
1351 Should the atags used to boot the kernel be exported in an "atags"
1352 file in procfs. Useful with kexec.
1353
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354endmenu
1355
Russell Kingac9d7ef2008-08-18 17:26:00 +01001356menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357
Ben Dooks89c52ed2009-07-30 23:23:24 +01001358if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001359
1360source "drivers/cpufreq/Kconfig"
1361
1362config CPU_FREQ_SA1100
1363 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364
1365config CPU_FREQ_SA1110
1366 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001367
1368config CPU_FREQ_INTEGRATOR
1369 tristate "CPUfreq driver for ARM Integrator CPUs"
1370 depends on ARCH_INTEGRATOR && CPU_FREQ
1371 default y
1372 help
1373 This enables the CPUfreq driver for ARM Integrator CPUs.
1374
1375 For details, take a look at <file:Documentation/cpu-freq>.
1376
1377 If in doubt, say Y.
1378
Russell King9e2697f2007-12-14 13:30:14 +00001379config CPU_FREQ_PXA
1380 bool
1381 depends on CPU_FREQ && ARCH_PXA && PXA25x
1382 default y
1383 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1384
Mark Brownb3748dd2009-06-15 11:23:20 +01001385config CPU_FREQ_S3C64XX
1386 bool "CPUfreq support for Samsung S3C64XX CPUs"
1387 depends on CPU_FREQ && CPU_S3C6410
1388
Ben Dooks9d56c022009-07-30 23:23:25 +01001389config CPU_FREQ_S3C
1390 bool
1391 help
1392 Internal configuration node for common cpufreq on Samsung SoC
1393
1394config CPU_FREQ_S3C24XX
1395 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1396 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1397 select CPU_FREQ_S3C
1398 help
1399 This enables the CPUfreq driver for the Samsung S3C24XX family
1400 of CPUs.
1401
1402 For details, take a look at <file:Documentation/cpu-freq>.
1403
1404 If in doubt, say N.
1405
1406config CPU_FREQ_S3C24XX_PLL
1407 bool "Support CPUfreq changing of PLL frequency"
1408 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1409 help
1410 Compile in support for changing the PLL frequency from the
1411 S3C24XX series CPUfreq driver. The PLL takes time to settle
1412 after a frequency change, so by default it is not enabled.
1413
1414 This also means that the PLL tables for the selected CPU(s) will
1415 be built which may increase the size of the kernel image.
1416
1417config CPU_FREQ_S3C24XX_DEBUG
1418 bool "Debug CPUfreq Samsung driver core"
1419 depends on CPU_FREQ_S3C24XX
1420 help
1421 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1422
1423config CPU_FREQ_S3C24XX_IODEBUG
1424 bool "Debug CPUfreq Samsung driver IO timing"
1425 depends on CPU_FREQ_S3C24XX
1426 help
1427 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1428
Ben Dookse6d197a2009-07-30 23:23:42 +01001429config CPU_FREQ_S3C24XX_DEBUGFS
1430 bool "Export debugfs for CPUFreq"
1431 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1432 help
1433 Export status information via debugfs.
1434
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435endif
1436
Russell Kingac9d7ef2008-08-18 17:26:00 +01001437source "drivers/cpuidle/Kconfig"
1438
1439endmenu
1440
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441menu "Floating point emulation"
1442
1443comment "At least one emulation must be selected"
1444
1445config FPE_NWFPE
1446 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001447 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448 ---help---
1449 Say Y to include the NWFPE floating point emulator in the kernel.
1450 This is necessary to run most binaries. Linux does not currently
1451 support floating point hardware so you need to say Y here even if
1452 your machine has an FPA or floating point co-processor podule.
1453
1454 You may say N here if you are going to load the Acorn FPEmulator
1455 early in the bootup.
1456
1457config FPE_NWFPE_XP
1458 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001459 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460 help
1461 Say Y to include 80-bit support in the kernel floating-point
1462 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1463 Note that gcc does not generate 80-bit operations by default,
1464 so in most cases this option only enlarges the size of the
1465 floating point emulator without any good reason.
1466
1467 You almost surely want to say N here.
1468
1469config FPE_FASTFPE
1470 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001471 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472 ---help---
1473 Say Y here to include the FAST floating point emulator in the kernel.
1474 This is an experimental much faster emulator which now also has full
1475 precision for the mantissa. It does not support any exceptions.
1476 It is very simple, and approximately 3-6 times faster than NWFPE.
1477
1478 It should be sufficient for most programs. It may be not suitable
1479 for scientific calculations, but you have to check this for yourself.
1480 If you do not feel you need a faster FP emulation you should better
1481 choose NWFPE.
1482
1483config VFP
1484 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001485 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486 help
1487 Say Y to include VFP support code in the kernel. This is needed
1488 if your hardware includes a VFP unit.
1489
1490 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1491 release notes and additional status information.
1492
1493 Say N if your target does not have VFP hardware.
1494
Catalin Marinas25ebee02007-09-25 15:22:24 +01001495config VFPv3
1496 bool
1497 depends on VFP
1498 default y if CPU_V7
1499
Catalin Marinasb5872db2008-01-10 19:16:17 +01001500config NEON
1501 bool "Advanced SIMD (NEON) Extension support"
1502 depends on VFPv3 && CPU_V7
1503 help
1504 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1505 Extension.
1506
Linus Torvalds1da177e2005-04-16 15:20:36 -07001507endmenu
1508
1509menu "Userspace binary formats"
1510
1511source "fs/Kconfig.binfmt"
1512
1513config ARTHUR
1514 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001515 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001516 help
1517 Say Y here to include the kernel code necessary if you want to run
1518 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1519 experimental; if this sounds frightening, say N and sleep in peace.
1520 You can also say M here to compile this support as a module (which
1521 will be called arthur).
1522
1523endmenu
1524
1525menu "Power management options"
1526
Russell Kingeceab4a2005-11-15 11:31:41 +00001527source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001528
Johannes Bergf4cb5702007-12-08 02:14:00 +01001529config ARCH_SUSPEND_POSSIBLE
1530 def_bool y
1531
Linus Torvalds1da177e2005-04-16 15:20:36 -07001532endmenu
1533
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001534source "net/Kconfig"
1535
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001536source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001537
1538source "fs/Kconfig"
1539
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540source "arch/arm/Kconfig.debug"
1541
1542source "security/Kconfig"
1543
1544source "crypto/Kconfig"
1545
1546source "lib/Kconfig"