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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
Albin Tonnerree7db7b42010-01-08 14:42:43 -080021 select HAVE_KERNEL_GZIP
22 select HAVE_KERNEL_LZO
Linus Torvalds1da177e2005-04-16 15:20:36 -070023 help
24 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000025 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000027 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070028 Europe. There is an ARM Linux project with a web page at
29 <http://www.arm.linux.org.uk/>.
30
Russell King1a189b92008-04-13 21:41:55 +010031config HAVE_PWM
32 bool
33
Ralf Baechle75e71532007-02-09 17:08:58 +000034config SYS_SUPPORTS_APM_EMULATION
35 bool
36
David Brownell0a938b92007-03-05 00:30:18 -080037config GENERIC_GPIO
38 bool
David Brownell0a938b92007-03-05 00:30:18 -080039
Kevin Hilman746140c2006-09-22 00:16:30 +010040config GENERIC_TIME
41 bool
Kevin Hilman746140c2006-09-22 00:16:30 +010042
Kevin Hilman0567a0c2007-03-13 20:29:24 +010043config GENERIC_CLOCKEVENTS
44 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010045
Catalin Marinasa8655e82008-02-04 17:30:57 +010046config GENERIC_CLOCKEVENTS_BROADCAST
47 bool
48 depends on GENERIC_CLOCKEVENTS
49 default y if SMP && !LOCAL_TIMERS
50
Linus Walleijbc581772009-09-15 17:30:37 +010051config HAVE_TCM
52 bool
53 select GENERIC_ALLOCATOR
54
Al Viro5ea81762007-02-11 15:41:31 +000055config NO_IOPORT
56 bool
Al Viro5ea81762007-02-11 15:41:31 +000057
Linus Torvalds1da177e2005-04-16 15:20:36 -070058config EISA
59 bool
60 ---help---
61 The Extended Industry Standard Architecture (EISA) bus was
62 developed as an open alternative to the IBM MicroChannel bus.
63
64 The EISA bus provided some of the features of the IBM MicroChannel
65 bus while maintaining backward compatibility with cards made for
66 the older ISA bus. The EISA bus saw limited use between 1988 and
67 1995 when it was made obsolete by the PCI bus.
68
69 Say Y here if you are building a kernel for an EISA-based machine.
70
71 Otherwise, say N.
72
73config SBUS
74 bool
75
76config MCA
77 bool
78 help
79 MicroChannel Architecture is found in some IBM PS/2 machines and
80 laptops. It is a bus system similar to PCI or ISA. See
81 <file:Documentation/mca.txt> (and especially the web page given
82 there) before attempting to build an MCA bus kernel.
83
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010084config GENERIC_HARDIRQS
85 bool
86 default y
87
Russell Kingf16fb1e2007-04-28 09:59:37 +010088config STACKTRACE_SUPPORT
89 bool
90 default y
91
Nicolas Pitref76e9152008-04-24 01:31:46 -040092config HAVE_LATENCYTOP_SUPPORT
93 bool
94 depends on !SMP
95 default y
96
Russell Kingf16fb1e2007-04-28 09:59:37 +010097config LOCKDEP_SUPPORT
98 bool
99 default y
100
Russell King7ad1bcb2006-08-27 12:07:02 +0100101config TRACE_IRQFLAGS_SUPPORT
102 bool
103 default y
104
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100105config HARDIRQS_SW_RESEND
106 bool
107 default y
108
109config GENERIC_IRQ_PROBE
110 bool
111 default y
112
Nick Piggin95c354f2008-01-30 13:31:20 +0100113config GENERIC_LOCKBREAK
114 bool
115 default y
116 depends on SMP && PREEMPT
117
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118config RWSEM_GENERIC_SPINLOCK
119 bool
120 default y
121
122config RWSEM_XCHGADD_ALGORITHM
123 bool
124
David Howellsf0d1b0b2006-12-08 02:37:49 -0800125config ARCH_HAS_ILOG2_U32
126 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800127
128config ARCH_HAS_ILOG2_U64
129 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800130
Ben Dooks89c52ed2009-07-30 23:23:24 +0100131config ARCH_HAS_CPUFREQ
132 bool
133 help
134 Internal node to signify that the ARCH has CPUFREQ support
135 and that the relevant menu configurations are displayed for
136 it.
137
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800138config GENERIC_HWEIGHT
139 bool
140 default y
141
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142config GENERIC_CALIBRATE_DELAY
143 bool
144 default y
145
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100146config ARCH_MAY_HAVE_PC_FDC
147 bool
148
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800149config ZONE_DMA
150 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800151
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152config GENERIC_ISA_DMA
153 bool
154
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155config FIQ
156 bool
157
Al Viro034d2f52005-12-19 16:27:59 -0500158config ARCH_MTD_XIP
159 bool
160
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100161config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100162 def_bool y
163
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500164if OPROFILE
165
166config OPROFILE_ARMV6
167 def_bool y
168 depends on CPU_V6 && !SMP
169 select OPROFILE_ARM11_CORE
170
171config OPROFILE_MPCORE
172 def_bool y
173 depends on CPU_V6 && SMP
174 select OPROFILE_ARM11_CORE
175
176config OPROFILE_ARM11_CORE
177 bool
178
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100179config OPROFILE_ARMV7
180 def_bool y
181 depends on CPU_V7 && !SMP
182 bool
183
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500184endif
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194source "init/Kconfig"
195
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700196source "kernel/Kconfig.freezer"
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198menu "System Type"
199
Hyok S. Choi3c427972009-07-24 12:35:00 +0100200config MMU
201 bool "MMU-based Paged Memory Management Support"
202 default y
203 help
204 Select if you want MMU-based virtualised addressing space
205 support by paged memory management. If unsure, say 'Y'.
206
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207choice
208 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000209 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100211config ARCH_AAEC2000
212 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000213 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100214 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700215 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100216 help
217 This enables support for systems based on the Agilent AAEC-2000
218
219config ARCH_INTEGRATOR
220 bool "ARM Ltd. Integrator family"
221 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100222 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700223 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000224 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100225 select ICST525
226 help
227 Support for ARM's Integrator platform.
228
229config ARCH_REALVIEW
230 bool "ARM Ltd. RealView family"
231 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700232 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000233 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100234 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100235 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100236 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100237 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100238 help
239 This enables support for ARM Ltd RealView boards.
240
241config ARCH_VERSATILE
242 bool "ARM Ltd. Versatile family"
243 select ARM_AMBA
244 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700245 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000246 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100247 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100248 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100249 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100250 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100251 help
252 This enables support for ARM Ltd Versatile board.
253
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100254config ARCH_AT91
255 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800256 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100257 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700258 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100259 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100260 This enables support for systems based on the Atmel AT91RM9200,
261 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100262
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100264 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000265 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000266 help
267 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268
Russell King788c9702009-04-26 14:21:59 +0100269config ARCH_GEMINI
270 bool "Cortina Systems Gemini"
271 select CPU_FA526
272 select GENERIC_GPIO
273 select ARCH_REQUIRE_GPIOLIB
274 help
275 Support for the Cortina Systems Gemini family SoCs
276
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277config ARCH_EBSA110
278 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000279 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100280 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000281 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 help
283 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000284 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 Ethernet interface, two PCMCIA sockets, two serial ports and a
286 parallel port.
287
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000288config ARCH_EP93XX
289 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000290 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000291 select ARM_AMBA
292 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100293 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700294 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000295 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700296 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100297 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000298 help
299 This enables support for the Cirrus EP93xx series of CPUs.
300
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301config ARCH_FOOTBRIDGE
302 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000303 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000305 help
306 Support for systems based on the DC21285 companion chip
307 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308
Russell King788c9702009-04-26 14:21:59 +0100309config ARCH_MXC
310 bool "Freescale MXC/iMX-based"
311 select GENERIC_TIME
312 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100313 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
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500499 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100500 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
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500510 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100511
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
Magnus Dammc793c1b2010-02-05 11:14:49 +0000586config ARCH_SHMOBILE
587 bool "Renesas SH-Mobile"
588 help
589 Support for Renesas's SH-Mobile ARM platforms
590
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591config ARCH_RPC
592 bool "RiscPC"
593 select ARCH_ACORN
594 select FIQ
595 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100596 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100597 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000598 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000599 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100600 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601 help
602 On the Acorn Risc-PC, Linux can support the internal IDE disk and
603 CD-ROM interface, serial and parallel port, and the floppy drive.
604
605config ARCH_SA1100
606 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000607 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100608 select ISA
Russell King05944d72006-11-30 20:43:51 +0000609 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500610 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100611 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000612 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800613 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000614 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100615 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700616 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100617 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700618 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000619 help
620 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621
622config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100623 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800624 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100625 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700626 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627 help
628 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
629 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000630 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631
Ben Dooksa08ab632008-10-21 14:06:39 +0100632config ARCH_S3C64XX
633 bool "Samsung S3C64XX"
634 select GENERIC_GPIO
635 select HAVE_CLK
Ben Dooks89c52ed2009-07-30 23:23:24 +0100636 select ARCH_HAS_CPUFREQ
Ben Dooksa08ab632008-10-21 14:06:39 +0100637 help
638 Samsung S3C64XX series based systems
639
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900640config ARCH_S5P6440
641 bool "Samsung S5P6440"
642 select CPU_V6
643 select GENERIC_GPIO
644 select HAVE_CLK
645 help
646 Samsung S5P6440 CPU based systems
647
Byungho Min5a7652f2009-06-23 21:39:42 +0900648config ARCH_S5PC1XX
649 bool "Samsung S5PC1XX"
650 select GENERIC_GPIO
651 select HAVE_CLK
652 select CPU_V7
653 help
654 Samsung S5PC1XX series based systems
655
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656config ARCH_SHARK
657 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000658 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100659 select ISA
660 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100661 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100662 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000663 help
664 Support for the StrongARM based Digital DNARD machine, also known
665 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666
667config ARCH_LH7A40X
668 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000669 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100670 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
671 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672 help
673 Say Y here for systems based on one of the Sharp LH7A40X
674 System on a Chip processors. These CPUs include an ARM922T
675 core with a wide array of integrated devices for
676 hand-held and low-power applications.
677
Linus Walleijd98aac72009-04-27 10:21:46 +0100678config ARCH_U300
679 bool "ST-Ericsson U300 Series"
680 depends on MMU
681 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100682 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100683 select ARM_AMBA
684 select ARM_VIC
685 select GENERIC_TIME
686 select GENERIC_CLOCKEVENTS
687 select HAVE_CLK
688 select COMMON_CLKDEV
689 select GENERIC_GPIO
690 help
691 Support for ST-Ericsson U300 series mobile platforms.
692
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100693config ARCH_DAVINCI
694 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000695 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100696 select GENERIC_TIME
697 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100698 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700699 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700700 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100701 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700702 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700703 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700704 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530705 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100706 help
707 Support for TI's DaVinci platform.
708
Russell King3b938be2007-05-12 11:25:44 +0100709config ARCH_OMAP
710 bool "TI OMAP"
711 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700712 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700713 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100714 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100715 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700716 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800717 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100718 help
719 Support for TI's OMAP platform (OMAP1 and OMAP2).
720
Leo Chen6288e282009-08-07 19:46:15 +0100721config ARCH_BCMRING
722 bool "Broadcom BCMRING"
723 depends on MMU
724 select CPU_V6
725 select ARM_AMBA
726 select COMMON_CLKDEV
727 select GENERIC_TIME
728 select GENERIC_CLOCKEVENTS
729 select ARCH_WANT_OPTIONAL_GPIOLIB
730 help
731 Support for Broadcom's BCMRing platform.
732
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100733config ARCH_U8500
734 bool "ST-Ericsson U8500 Series"
735 select CPU_V7
736 select ARM_AMBA
737 select GENERIC_TIME
738 select GENERIC_CLOCKEVENTS
739 select COMMON_CLKDEV
740 help
741 Support for ST-Ericsson's Ux500 architecture
742
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743endchoice
744
Russell King95b8f202010-01-14 11:43:54 +0000745source "arch/arm/mach-aaec2000/Kconfig"
746
747source "arch/arm/mach-at91/Kconfig"
748
749source "arch/arm/mach-bcmring/Kconfig"
750
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751source "arch/arm/mach-clps711x/Kconfig"
752
Russell King95b8f202010-01-14 11:43:54 +0000753source "arch/arm/mach-davinci/Kconfig"
754
755source "arch/arm/mach-dove/Kconfig"
756
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000757source "arch/arm/mach-ep93xx/Kconfig"
758
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759source "arch/arm/mach-footbridge/Kconfig"
760
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200761source "arch/arm/mach-gemini/Kconfig"
762
Russell King95b8f202010-01-14 11:43:54 +0000763source "arch/arm/mach-h720x/Kconfig"
764
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765source "arch/arm/mach-integrator/Kconfig"
766
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100767source "arch/arm/mach-iop32x/Kconfig"
768
769source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770
Dan Williams285f5fa2006-12-07 02:59:39 +0100771source "arch/arm/mach-iop13xx/Kconfig"
772
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773source "arch/arm/mach-ixp4xx/Kconfig"
774
775source "arch/arm/mach-ixp2000/Kconfig"
776
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100777source "arch/arm/mach-ixp23xx/Kconfig"
778
Russell King95b8f202010-01-14 11:43:54 +0000779source "arch/arm/mach-kirkwood/Kconfig"
780
781source "arch/arm/mach-ks8695/Kconfig"
782
783source "arch/arm/mach-lh7a40x/Kconfig"
784
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200785source "arch/arm/mach-loki/Kconfig"
786
Russell King95b8f202010-01-14 11:43:54 +0000787source "arch/arm/mach-msm/Kconfig"
788
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200789source "arch/arm/mach-mv78xx0/Kconfig"
790
Russell King95b8f202010-01-14 11:43:54 +0000791source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700792
Russell King95b8f202010-01-14 11:43:54 +0000793source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800794
Russell King95b8f202010-01-14 11:43:54 +0000795source "arch/arm/mach-nomadik/Kconfig"
796source "arch/arm/plat-nomadik/Kconfig"
797
798source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700799
Tony Lindgrend48af152005-07-10 19:58:17 +0100800source "arch/arm/plat-omap/Kconfig"
801
802source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803
Tony Lindgren1dbae812005-11-10 14:26:51 +0000804source "arch/arm/mach-omap2/Kconfig"
805
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400806source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400807
Russell King95b8f202010-01-14 11:43:54 +0000808source "arch/arm/mach-pxa/Kconfig"
809source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810
Russell King95b8f202010-01-14 11:43:54 +0000811source "arch/arm/mach-mmp/Kconfig"
812
813source "arch/arm/mach-realview/Kconfig"
814
815source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300816
Ben Dookscf383672009-11-10 00:14:58 +0000817source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100818source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100819source "arch/arm/plat-s3c64xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100820source "arch/arm/plat-s3c/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900821source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900822source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100823
824if ARCH_S3C2410
825source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700826source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100827source "arch/arm/mach-s3c2412/Kconfig"
828source "arch/arm/mach-s3c2440/Kconfig"
829source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100830source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100831endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700832
Ben Dooksa08ab632008-10-21 14:06:39 +0100833if ARCH_S3C64XX
834source "arch/arm/mach-s3c6400/Kconfig"
835source "arch/arm/mach-s3c6410/Kconfig"
836endif
837
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900838source "arch/arm/mach-s5p6440/Kconfig"
839
Magnus Dammc793c1b2010-02-05 11:14:49 +0000840source "arch/arm/mach-shmobile/Kconfig"
841
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100842source "arch/arm/plat-stmp3xxx/Kconfig"
843
Byungho Min5a7652f2009-06-23 21:39:42 +0900844if ARCH_S5PC1XX
845source "arch/arm/mach-s5pc100/Kconfig"
846endif
847
Russell King95b8f202010-01-14 11:43:54 +0000848source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849
Russell King95b8f202010-01-14 11:43:54 +0000850source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851
852source "arch/arm/mach-versatile/Kconfig"
853
wanzongshun7ec80dd2008-12-03 03:55:38 +0100854source "arch/arm/mach-w90x900/Kconfig"
855
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856# Definitions to make life easier
857config ARCH_ACORN
858 bool
859
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100860config PLAT_IOP
861 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700862 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700863 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100864
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400865config PLAT_ORION
866 bool
867
Eric Miaobd5ce432009-01-20 12:06:01 +0800868config PLAT_PXA
869 bool
870
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871source arch/arm/mm/Kconfig
872
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100873config IWMMXT
874 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800875 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
876 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100877 help
878 Enable support for iWMMXt context switching at run time if
879 running on a CPU that supports it.
880
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
882config XSCALE_PMU
883 bool
884 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
885 default y
886
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100887if !MMU
888source "arch/arm/Kconfig-nommu"
889endif
890
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100891config ARM_ERRATA_411920
892 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
893 depends on CPU_V6 && !SMP
894 help
895 Invalidation of the Instruction Cache operation can
896 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
897 It does not affect the MPCore. This option enables the ARM Ltd.
898 recommended workaround.
899
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100900config ARM_ERRATA_430973
901 bool "ARM errata: Stale prediction on replaced interworking branch"
902 depends on CPU_V7
903 help
904 This option enables the workaround for the 430973 Cortex-A8
905 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
906 interworking branch is replaced with another code sequence at the
907 same virtual address, whether due to self-modifying code or virtual
908 to physical address re-mapping, Cortex-A8 does not recover from the
909 stale interworking branch prediction. This results in Cortex-A8
910 executing the new code sequence in the incorrect ARM or Thumb state.
911 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
912 and also flushes the branch target cache at every context switch.
913 Note that setting specific bits in the ACTLR register may not be
914 available in non-secure mode.
915
Catalin Marinas855c5512009-04-30 17:06:15 +0100916config ARM_ERRATA_458693
917 bool "ARM errata: Processor deadlock when a false hazard is created"
918 depends on CPU_V7
919 help
920 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
921 erratum. For very specific sequences of memory operations, it is
922 possible for a hazard condition intended for a cache line to instead
923 be incorrectly associated with a different cache line. This false
924 hazard might then cause a processor deadlock. The workaround enables
925 the L1 caching of the NEON accesses and disables the PLD instruction
926 in the ACTLR register. Note that setting specific bits in the ACTLR
927 register may not be available in non-secure mode.
928
Catalin Marinas0516e462009-04-30 17:06:20 +0100929config ARM_ERRATA_460075
930 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
931 depends on CPU_V7
932 help
933 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
934 erratum. Any asynchronous access to the L2 cache may encounter a
935 situation in which recent store transactions to the L2 cache are lost
936 and overwritten with stale memory contents from external memory. The
937 workaround disables the write-allocate mode for the L2 cache via the
938 ACTLR register. Note that setting specific bits in the ACTLR register
939 may not be available in non-secure mode.
940
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941endmenu
942
943source "arch/arm/common/Kconfig"
944
945config FORCE_MAX_ZONEORDER
946 int
947 depends on SA1111
948 default "9"
949
950menu "Bus support"
951
952config ARM_AMBA
953 bool
954
955config ISA
956 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957 help
958 Find out whether you have ISA slots on your motherboard. ISA is the
959 name of a bus system, i.e. the way the CPU talks to the other stuff
960 inside your box. Other bus systems are PCI, EISA, MicroChannel
961 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
962 newer boards don't support it. If you have ISA, say Y, otherwise N.
963
Russell King065909b2006-01-04 15:44:16 +0000964# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965config ISA_DMA
966 bool
Russell King065909b2006-01-04 15:44:16 +0000967 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968
Russell King065909b2006-01-04 15:44:16 +0000969# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100970config ISA_DMA_API
971 bool
Al Viro5cae8412005-05-04 05:39:22 +0100972
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100974 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975 help
976 Find out whether you have a PCI motherboard. PCI is the name of a
977 bus system, i.e. the way the CPU talks to the other stuff inside
978 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
979 VESA. If you have PCI, say Y, otherwise N.
980
Matthew Wilcox36e23592007-07-10 10:54:40 -0600981config PCI_SYSCALL
982 def_bool PCI
983
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984# Select the host bridge type
985config PCI_HOST_VIA82C505
986 bool
987 depends on PCI && ARCH_SHARK
988 default y
989
Mike Rapoporta0113a92007-11-25 08:55:34 +0100990config PCI_HOST_ITE8152
991 bool
992 depends on PCI && MACH_ARMCORE
993 default y
994 select DMABOUNCE
995
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996source "drivers/pci/Kconfig"
997
998source "drivers/pcmcia/Kconfig"
999
1000endmenu
1001
1002menu "Kernel Features"
1003
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001004source "kernel/time/Kconfig"
1005
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006config SMP
1007 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001008 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001009 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001010 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001011 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001012 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013 help
1014 This enables support for systems with more than one CPU. If you have
1015 a system with only one CPU, like most personal computers, say N. If
1016 you have a system with more than one CPU, say Y.
1017
1018 If you say N here, the kernel will run on single and multiprocessor
1019 machines, but will use only one CPU of a multiprocessor machine. If
1020 you say Y here, the kernel will run on many, but not all, single
1021 processor machines. On a single processor machine, the kernel will
1022 run faster if you say N here.
1023
Adrian Bunk03502fa2008-02-03 15:50:21 +02001024 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1026 <http://www.linuxdoc.org/docs.html#howto>.
1027
1028 If you don't know what to do here, say N.
1029
Russell Kinga8cbcd92009-05-16 11:51:14 +01001030config HAVE_ARM_SCU
1031 bool
1032 depends on SMP
1033 help
1034 This option enables support for the ARM system coherency unit
1035
Russell Kingf32f4ce2009-05-16 12:14:21 +01001036config HAVE_ARM_TWD
1037 bool
1038 depends on SMP
1039 help
1040 This options enables support for the ARM timer and watchdog unit
1041
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001042choice
1043 prompt "Memory split"
1044 default VMSPLIT_3G
1045 help
1046 Select the desired split between kernel and user memory.
1047
1048 If you are not absolutely sure what you are doing, leave this
1049 option alone!
1050
1051 config VMSPLIT_3G
1052 bool "3G/1G user/kernel split"
1053 config VMSPLIT_2G
1054 bool "2G/2G user/kernel split"
1055 config VMSPLIT_1G
1056 bool "1G/3G user/kernel split"
1057endchoice
1058
1059config PAGE_OFFSET
1060 hex
1061 default 0x40000000 if VMSPLIT_1G
1062 default 0x80000000 if VMSPLIT_2G
1063 default 0xC0000000
1064
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065config NR_CPUS
1066 int "Maximum number of CPUs (2-32)"
1067 range 2 32
1068 depends on SMP
1069 default "4"
1070
Russell Kinga054a812005-11-02 22:24:33 +00001071config HOTPLUG_CPU
1072 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1073 depends on SMP && HOTPLUG && EXPERIMENTAL
1074 help
1075 Say Y here to experiment with turning CPUs off and on. CPUs
1076 can be controlled through /sys/devices/system/cpu.
1077
Russell King37ee16a2005-11-08 19:08:05 +00001078config LOCAL_TIMERS
1079 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001080 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001081 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001082 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001083 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001084 help
1085 Enable support for local timers on SMP platforms, rather then the
1086 legacy IPI broadcast method. Local timers allows the system
1087 accounting to be spread across the timer interval, preventing a
1088 "thundering herd" at every timer tick.
1089
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001090source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091
Russell Kingf8065812006-03-02 22:41:59 +00001092config HZ
1093 int
1094 default 128 if ARCH_L7200
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001095 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440
Russell Kingbfe65702006-03-04 11:01:53 +00001096 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001097 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001098 default 100
1099
Catalin Marinas16c79652009-07-24 12:33:02 +01001100config THUMB2_KERNEL
1101 bool "Compile the kernel in Thumb-2 mode"
1102 depends on CPU_V7 && EXPERIMENTAL
1103 select AEABI
1104 select ARM_ASM_UNIFIED
1105 help
1106 By enabling this option, the kernel will be compiled in
1107 Thumb-2 mode. A compiler/assembler that understand the unified
1108 ARM-Thumb syntax is needed.
1109
1110 If unsure, say N.
1111
Catalin Marinas0becb082009-07-24 12:32:53 +01001112config ARM_ASM_UNIFIED
1113 bool
1114
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001115config AEABI
1116 bool "Use the ARM EABI to compile the kernel"
1117 help
1118 This option allows for the kernel to be compiled using the latest
1119 ARM ABI (aka EABI). This is only useful if you are using a user
1120 space environment that is also compiled with EABI.
1121
1122 Since there are major incompatibilities between the legacy ABI and
1123 EABI, especially with regard to structure member alignment, this
1124 option also changes the kernel syscall calling convention to
1125 disambiguate both ABIs and allow for backward compatibility support
1126 (selected with CONFIG_OABI_COMPAT).
1127
1128 To use this you need GCC version 4.0.0 or later.
1129
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001130config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001131 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001132 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001133 default y
1134 help
1135 This option preserves the old syscall interface along with the
1136 new (ARM EABI) one. It also provides a compatibility layer to
1137 intercept syscalls that have structure arguments which layout
1138 in memory differs between the legacy ABI and the new ARM EABI
1139 (only for non "thumb" binaries). This option adds a tiny
1140 overhead to all syscalls and produces a slightly larger kernel.
1141 If you know you'll be using only pure EABI user space then you
1142 can say N here. If this option is not selected and you attempt
1143 to execute a legacy ABI binary then the result will be
1144 UNPREDICTABLE (in fact it can be predicted that it won't work
1145 at all). If in doubt say Y.
1146
Mel Gormaneb335752009-05-13 17:34:48 +01001147config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001148 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001149
Russell King07a2f732008-10-01 21:39:58 +01001150# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001151config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001152 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001153
Russell King05944d72006-11-30 20:43:51 +00001154config ARCH_SPARSEMEM_ENABLE
1155 bool
1156
Russell King07a2f732008-10-01 21:39:58 +01001157config ARCH_SPARSEMEM_DEFAULT
1158 def_bool ARCH_SPARSEMEM_ENABLE
1159
Russell King05944d72006-11-30 20:43:51 +00001160config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001161 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001162
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001163config NODES_SHIFT
1164 int
1165 default "4" if ARCH_LH7A40X
1166 default "2"
1167 depends on NEED_MULTIPLE_NODES
1168
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001169config HIGHMEM
1170 bool "High Memory Support (EXPERIMENTAL)"
1171 depends on MMU && EXPERIMENTAL
1172 help
1173 The address space of ARM processors is only 4 Gigabytes large
1174 and it has to accommodate user address space, kernel address
1175 space as well as some memory mapped IO. That means that, if you
1176 have a large amount of physical memory and/or IO, not all of the
1177 memory can be "permanently mapped" by the kernel. The physical
1178 memory that is not permanently mapped is called "high memory".
1179
1180 Depending on the selected kernel/user memory split, minimum
1181 vmalloc space and actual amount of RAM, you may not need this
1182 option which should result in a slightly faster kernel.
1183
1184 If unsure, say n.
1185
Russell King65cec8e2009-08-17 20:02:06 +01001186config HIGHPTE
1187 bool "Allocate 2nd-level pagetables from highmem"
1188 depends on HIGHMEM
1189 depends on !OUTER_CACHE
1190
Dave Hansen3f22ab22005-06-23 00:07:43 -07001191source "mm/Kconfig"
1192
Linus Torvalds1da177e2005-04-16 15:20:36 -07001193config LEDS
1194 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001195 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001196 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1198 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001199 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001200 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001201 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001202 help
1203 If you say Y here, the LEDs on your machine will be used
1204 to provide useful information about your current system status.
1205
1206 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1207 be able to select which LEDs are active using the options below. If
1208 you are compiling a kernel for the EBSA-110 or the LART however, the
1209 red LED will simply flash regularly to indicate that the system is
1210 still functional. It is safe to say Y here if you have a CATS
1211 system, but the driver will do nothing.
1212
1213config LEDS_TIMER
1214 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001215 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1216 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001218 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001219 default y if ARCH_EBSA110
1220 help
1221 If you say Y here, one of the system LEDs (the green one on the
1222 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1223 will flash regularly to indicate that the system is still
1224 operational. This is mainly useful to kernel hackers who are
1225 debugging unstable kernels.
1226
1227 The LART uses the same LED for both Timer LED and CPU usage LED
1228 functions. You may choose to use both, but the Timer LED function
1229 will overrule the CPU usage LED.
1230
1231config LEDS_CPU
1232 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001233 !ARCH_OMAP) \
1234 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1235 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001236 depends on LEDS
1237 help
1238 If you say Y here, the red LED will be used to give a good real
1239 time indication of CPU usage, by lighting whenever the idle task
1240 is not currently executing.
1241
1242 The LART uses the same LED for both Timer LED and CPU usage LED
1243 functions. You may choose to use both, but the Timer LED function
1244 will overrule the CPU usage LED.
1245
1246config ALIGNMENT_TRAP
1247 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001248 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249 default y if !ARCH_EBSA110
1250 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001251 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1253 address divisible by 4. On 32-bit ARM processors, these non-aligned
1254 fetch/store instructions will be emulated in software if you say
1255 here, which has a severe performance impact. This is necessary for
1256 correct operation of some network protocols. With an IP-only
1257 configuration it is safe to say N, otherwise say Y.
1258
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001259config UACCESS_WITH_MEMCPY
1260 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1261 depends on MMU && EXPERIMENTAL
1262 default y if CPU_FEROCEON
1263 help
1264 Implement faster copy_to_user and clear_user methods for CPU
1265 cores where a 8-word STM instruction give significantly higher
1266 memory write throughput than a sequence of individual 32bit stores.
1267
1268 A possible side effect is a slight increase in scheduling latency
1269 between threads sharing the same address space if they invoke
1270 such copy operations with large buffers.
1271
1272 However, if the CPU data cache is using a write-allocate mode,
1273 this option is unlikely to provide any performance gain.
1274
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275endmenu
1276
1277menu "Boot options"
1278
1279# Compressed boot loader in ROM. Yes, we really want to ask about
1280# TEXT and BSS so we preserve their values in the config files.
1281config ZBOOT_ROM_TEXT
1282 hex "Compressed ROM boot loader base address"
1283 default "0"
1284 help
1285 The physical address at which the ROM-able zImage is to be
1286 placed in the target. Platforms which normally make use of
1287 ROM-able zImage formats normally set this to a suitable
1288 value in their defconfig file.
1289
1290 If ZBOOT_ROM is not enabled, this has no effect.
1291
1292config ZBOOT_ROM_BSS
1293 hex "Compressed ROM boot loader BSS address"
1294 default "0"
1295 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001296 The base address of an area of read/write memory in the target
1297 for the ROM-able zImage which must be available while the
1298 decompressor is running. It must be large enough to hold the
1299 entire decompressed kernel plus an additional 128 KiB.
1300 Platforms which normally make use of ROM-able zImage formats
1301 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302
1303 If ZBOOT_ROM is not enabled, this has no effect.
1304
1305config ZBOOT_ROM
1306 bool "Compressed boot loader in ROM/flash"
1307 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1308 help
1309 Say Y here if you intend to execute your compressed kernel image
1310 (zImage) directly from ROM or flash. If unsure, say N.
1311
1312config CMDLINE
1313 string "Default kernel command string"
1314 default ""
1315 help
1316 On some architectures (EBSA110 and CATS), there is currently no way
1317 for the boot loader to pass arguments to the kernel. For these
1318 architectures, you should supply some command-line options at build
1319 time by entering them here. As a minimum, you should specify the
1320 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1321
1322config XIP_KERNEL
1323 bool "Kernel Execute-In-Place from ROM"
1324 depends on !ZBOOT_ROM
1325 help
1326 Execute-In-Place allows the kernel to run from non-volatile storage
1327 directly addressable by the CPU, such as NOR flash. This saves RAM
1328 space since the text section of the kernel is not loaded from flash
1329 to RAM. Read-write sections, such as the data section and stack,
1330 are still copied to RAM. The XIP kernel is not compressed since
1331 it has to run directly from flash, so it will take more space to
1332 store it. The flash address used to link the kernel object files,
1333 and for storing it, is configuration dependent. Therefore, if you
1334 say Y here, you must know the proper physical address where to
1335 store the kernel image depending on your own flash memory usage.
1336
1337 Also note that the make target becomes "make xipImage" rather than
1338 "make zImage" or "make Image". The final kernel binary to put in
1339 ROM memory will be arch/arm/boot/xipImage.
1340
1341 If unsure, say N.
1342
1343config XIP_PHYS_ADDR
1344 hex "XIP Kernel Physical Location"
1345 depends on XIP_KERNEL
1346 default "0x00080000"
1347 help
1348 This is the physical address in your flash memory the kernel will
1349 be linked for and stored to. This address is dependent on your
1350 own flash usage.
1351
Richard Purdiec587e4a2007-02-06 21:29:00 +01001352config KEXEC
1353 bool "Kexec system call (EXPERIMENTAL)"
1354 depends on EXPERIMENTAL
1355 help
1356 kexec is a system call that implements the ability to shutdown your
1357 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001358 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001359 you can start any kernel with it, not just Linux.
1360
1361 It is an ongoing process to be certain the hardware in a machine
1362 is properly shutdown, so do not be surprised if this code does not
1363 initially work for you. It may help to enable device hotplugging
1364 support.
1365
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001366config ATAGS_PROC
1367 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001368 depends on KEXEC
1369 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001370 help
1371 Should the atags used to boot the kernel be exported in an "atags"
1372 file in procfs. Useful with kexec.
1373
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374endmenu
1375
Russell Kingac9d7ef2008-08-18 17:26:00 +01001376menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377
Ben Dooks89c52ed2009-07-30 23:23:24 +01001378if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379
1380source "drivers/cpufreq/Kconfig"
1381
1382config CPU_FREQ_SA1100
1383 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384
1385config CPU_FREQ_SA1110
1386 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387
1388config CPU_FREQ_INTEGRATOR
1389 tristate "CPUfreq driver for ARM Integrator CPUs"
1390 depends on ARCH_INTEGRATOR && CPU_FREQ
1391 default y
1392 help
1393 This enables the CPUfreq driver for ARM Integrator CPUs.
1394
1395 For details, take a look at <file:Documentation/cpu-freq>.
1396
1397 If in doubt, say Y.
1398
Russell King9e2697f2007-12-14 13:30:14 +00001399config CPU_FREQ_PXA
1400 bool
1401 depends on CPU_FREQ && ARCH_PXA && PXA25x
1402 default y
1403 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1404
Mark Brownb3748dd2009-06-15 11:23:20 +01001405config CPU_FREQ_S3C64XX
1406 bool "CPUfreq support for Samsung S3C64XX CPUs"
1407 depends on CPU_FREQ && CPU_S3C6410
1408
Ben Dooks9d56c022009-07-30 23:23:25 +01001409config CPU_FREQ_S3C
1410 bool
1411 help
1412 Internal configuration node for common cpufreq on Samsung SoC
1413
1414config CPU_FREQ_S3C24XX
1415 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1416 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1417 select CPU_FREQ_S3C
1418 help
1419 This enables the CPUfreq driver for the Samsung S3C24XX family
1420 of CPUs.
1421
1422 For details, take a look at <file:Documentation/cpu-freq>.
1423
1424 If in doubt, say N.
1425
1426config CPU_FREQ_S3C24XX_PLL
1427 bool "Support CPUfreq changing of PLL frequency"
1428 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1429 help
1430 Compile in support for changing the PLL frequency from the
1431 S3C24XX series CPUfreq driver. The PLL takes time to settle
1432 after a frequency change, so by default it is not enabled.
1433
1434 This also means that the PLL tables for the selected CPU(s) will
1435 be built which may increase the size of the kernel image.
1436
1437config CPU_FREQ_S3C24XX_DEBUG
1438 bool "Debug CPUfreq Samsung driver core"
1439 depends on CPU_FREQ_S3C24XX
1440 help
1441 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1442
1443config CPU_FREQ_S3C24XX_IODEBUG
1444 bool "Debug CPUfreq Samsung driver IO timing"
1445 depends on CPU_FREQ_S3C24XX
1446 help
1447 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1448
Ben Dookse6d197a2009-07-30 23:23:42 +01001449config CPU_FREQ_S3C24XX_DEBUGFS
1450 bool "Export debugfs for CPUFreq"
1451 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1452 help
1453 Export status information via debugfs.
1454
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455endif
1456
Russell Kingac9d7ef2008-08-18 17:26:00 +01001457source "drivers/cpuidle/Kconfig"
1458
1459endmenu
1460
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461menu "Floating point emulation"
1462
1463comment "At least one emulation must be selected"
1464
1465config FPE_NWFPE
1466 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001467 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001468 ---help---
1469 Say Y to include the NWFPE floating point emulator in the kernel.
1470 This is necessary to run most binaries. Linux does not currently
1471 support floating point hardware so you need to say Y here even if
1472 your machine has an FPA or floating point co-processor podule.
1473
1474 You may say N here if you are going to load the Acorn FPEmulator
1475 early in the bootup.
1476
1477config FPE_NWFPE_XP
1478 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001479 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480 help
1481 Say Y to include 80-bit support in the kernel floating-point
1482 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1483 Note that gcc does not generate 80-bit operations by default,
1484 so in most cases this option only enlarges the size of the
1485 floating point emulator without any good reason.
1486
1487 You almost surely want to say N here.
1488
1489config FPE_FASTFPE
1490 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001491 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001492 ---help---
1493 Say Y here to include the FAST floating point emulator in the kernel.
1494 This is an experimental much faster emulator which now also has full
1495 precision for the mantissa. It does not support any exceptions.
1496 It is very simple, and approximately 3-6 times faster than NWFPE.
1497
1498 It should be sufficient for most programs. It may be not suitable
1499 for scientific calculations, but you have to check this for yourself.
1500 If you do not feel you need a faster FP emulation you should better
1501 choose NWFPE.
1502
1503config VFP
1504 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001505 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001506 help
1507 Say Y to include VFP support code in the kernel. This is needed
1508 if your hardware includes a VFP unit.
1509
1510 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1511 release notes and additional status information.
1512
1513 Say N if your target does not have VFP hardware.
1514
Catalin Marinas25ebee02007-09-25 15:22:24 +01001515config VFPv3
1516 bool
1517 depends on VFP
1518 default y if CPU_V7
1519
Catalin Marinasb5872db2008-01-10 19:16:17 +01001520config NEON
1521 bool "Advanced SIMD (NEON) Extension support"
1522 depends on VFPv3 && CPU_V7
1523 help
1524 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1525 Extension.
1526
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527endmenu
1528
1529menu "Userspace binary formats"
1530
1531source "fs/Kconfig.binfmt"
1532
1533config ARTHUR
1534 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001535 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001536 help
1537 Say Y here to include the kernel code necessary if you want to run
1538 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1539 experimental; if this sounds frightening, say N and sleep in peace.
1540 You can also say M here to compile this support as a module (which
1541 will be called arthur).
1542
1543endmenu
1544
1545menu "Power management options"
1546
Russell Kingeceab4a2005-11-15 11:31:41 +00001547source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001548
Johannes Bergf4cb5702007-12-08 02:14:00 +01001549config ARCH_SUSPEND_POSSIBLE
1550 def_bool y
1551
Linus Torvalds1da177e2005-04-16 15:20:36 -07001552endmenu
1553
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001554source "net/Kconfig"
1555
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001556source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557
1558source "fs/Kconfig"
1559
Linus Torvalds1da177e2005-04-16 15:20:36 -07001560source "arch/arm/Kconfig.debug"
1561
1562source "security/Kconfig"
1563
1564source "crypto/Kconfig"
1565
1566source "lib/Kconfig"