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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"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000634 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900635 select CPU_V6
Ben Dooksa08ab632008-10-21 14:06:39 +0100636 select GENERIC_GPIO
Ben Dooks89f0ce72010-01-26 15:49:15 +0900637 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100638 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900639 select NO_IOPORT
Ben Dooks89c52ed2009-07-30 23:23:24 +0100640 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900641 select ARCH_REQUIRE_GPIOLIB
642 select SAMSUNG_CLKSRC
643 select SAMSUNG_IRQ_VIC_TIMER
644 select SAMSUNG_IRQ_UART
645 select S3C_GPIO_TRACK
646 select S3C_GPIO_PULL_UPDOWN
647 select S3C_GPIO_CFG_S3C24XX
648 select S3C_GPIO_CFG_S3C64XX
649 select S3C_DEV_NAND
650 select USB_ARCH_HAS_OHCI
651 select SAMSUNG_GPIOLIB_4BIT
Ben Dooksa08ab632008-10-21 14:06:39 +0100652 help
653 Samsung S3C64XX series based systems
654
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900655config ARCH_S5P6440
656 bool "Samsung S5P6440"
657 select CPU_V6
658 select GENERIC_GPIO
659 select HAVE_CLK
660 help
661 Samsung S5P6440 CPU based systems
662
Kukjin Kim550db7f2010-01-29 10:19:26 +0900663config ARCH_S5P6442
664 bool "Samsung S5P6442"
665 select CPU_V6
666 select GENERIC_GPIO
667 select HAVE_CLK
668 help
669 Samsung S5P6442 CPU based systems
670
Byungho Min5a7652f2009-06-23 21:39:42 +0900671config ARCH_S5PC1XX
672 bool "Samsung S5PC1XX"
673 select GENERIC_GPIO
674 select HAVE_CLK
675 select CPU_V7
676 help
677 Samsung S5PC1XX series based systems
678
Kukjin Kim170f4e42010-02-24 16:40:44 +0900679config ARCH_S5PV210
680 bool "Samsung S5PV210/S5PC110"
681 select CPU_V7
682 select GENERIC_GPIO
683 select HAVE_CLK
684 select ARM_L1_CACHE_SHIFT_6
685 help
686 Samsung S5PV210/S5PC110 series based systems
687
Linus Torvalds1da177e2005-04-16 15:20:36 -0700688config ARCH_SHARK
689 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000690 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100691 select ISA
692 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100693 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100694 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000695 help
696 Support for the StrongARM based Digital DNARD machine, also known
697 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698
699config ARCH_LH7A40X
700 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000701 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100702 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
703 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704 help
705 Say Y here for systems based on one of the Sharp LH7A40X
706 System on a Chip processors. These CPUs include an ARM922T
707 core with a wide array of integrated devices for
708 hand-held and low-power applications.
709
Linus Walleijd98aac72009-04-27 10:21:46 +0100710config ARCH_U300
711 bool "ST-Ericsson U300 Series"
712 depends on MMU
713 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100714 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100715 select ARM_AMBA
716 select ARM_VIC
717 select GENERIC_TIME
718 select GENERIC_CLOCKEVENTS
719 select HAVE_CLK
720 select COMMON_CLKDEV
721 select GENERIC_GPIO
722 help
723 Support for ST-Ericsson U300 series mobile platforms.
724
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100725config ARCH_DAVINCI
726 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000727 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100728 select GENERIC_TIME
729 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100730 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700731 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700732 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100733 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700734 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700735 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700736 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530737 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100738 help
739 Support for TI's DaVinci platform.
740
Russell King3b938be2007-05-12 11:25:44 +0100741config ARCH_OMAP
742 bool "TI OMAP"
743 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700744 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700745 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100746 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100747 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700748 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800749 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100750 help
751 Support for TI's OMAP platform (OMAP1 and OMAP2).
752
Leo Chen6288e282009-08-07 19:46:15 +0100753config ARCH_BCMRING
754 bool "Broadcom BCMRING"
755 depends on MMU
756 select CPU_V6
757 select ARM_AMBA
758 select COMMON_CLKDEV
759 select GENERIC_TIME
760 select GENERIC_CLOCKEVENTS
761 select ARCH_WANT_OPTIONAL_GPIOLIB
762 help
763 Support for Broadcom's BCMRing platform.
764
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100765config ARCH_U8500
766 bool "ST-Ericsson U8500 Series"
767 select CPU_V7
768 select ARM_AMBA
769 select GENERIC_TIME
770 select GENERIC_CLOCKEVENTS
771 select COMMON_CLKDEV
772 help
773 Support for ST-Ericsson's Ux500 architecture
774
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775endchoice
776
Russell King95b8f202010-01-14 11:43:54 +0000777source "arch/arm/mach-aaec2000/Kconfig"
778
779source "arch/arm/mach-at91/Kconfig"
780
781source "arch/arm/mach-bcmring/Kconfig"
782
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783source "arch/arm/mach-clps711x/Kconfig"
784
Russell King95b8f202010-01-14 11:43:54 +0000785source "arch/arm/mach-davinci/Kconfig"
786
787source "arch/arm/mach-dove/Kconfig"
788
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000789source "arch/arm/mach-ep93xx/Kconfig"
790
Linus Torvalds1da177e2005-04-16 15:20:36 -0700791source "arch/arm/mach-footbridge/Kconfig"
792
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200793source "arch/arm/mach-gemini/Kconfig"
794
Russell King95b8f202010-01-14 11:43:54 +0000795source "arch/arm/mach-h720x/Kconfig"
796
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797source "arch/arm/mach-integrator/Kconfig"
798
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100799source "arch/arm/mach-iop32x/Kconfig"
800
801source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802
Dan Williams285f5fa2006-12-07 02:59:39 +0100803source "arch/arm/mach-iop13xx/Kconfig"
804
Linus Torvalds1da177e2005-04-16 15:20:36 -0700805source "arch/arm/mach-ixp4xx/Kconfig"
806
807source "arch/arm/mach-ixp2000/Kconfig"
808
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100809source "arch/arm/mach-ixp23xx/Kconfig"
810
Russell King95b8f202010-01-14 11:43:54 +0000811source "arch/arm/mach-kirkwood/Kconfig"
812
813source "arch/arm/mach-ks8695/Kconfig"
814
815source "arch/arm/mach-lh7a40x/Kconfig"
816
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200817source "arch/arm/mach-loki/Kconfig"
818
Russell King95b8f202010-01-14 11:43:54 +0000819source "arch/arm/mach-msm/Kconfig"
820
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200821source "arch/arm/mach-mv78xx0/Kconfig"
822
Russell King95b8f202010-01-14 11:43:54 +0000823source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700824
Russell King95b8f202010-01-14 11:43:54 +0000825source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800826
Russell King95b8f202010-01-14 11:43:54 +0000827source "arch/arm/mach-nomadik/Kconfig"
828source "arch/arm/plat-nomadik/Kconfig"
829
830source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700831
Tony Lindgrend48af152005-07-10 19:58:17 +0100832source "arch/arm/plat-omap/Kconfig"
833
834source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835
Tony Lindgren1dbae812005-11-10 14:26:51 +0000836source "arch/arm/mach-omap2/Kconfig"
837
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400838source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400839
Russell King95b8f202010-01-14 11:43:54 +0000840source "arch/arm/mach-pxa/Kconfig"
841source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842
Russell King95b8f202010-01-14 11:43:54 +0000843source "arch/arm/mach-mmp/Kconfig"
844
845source "arch/arm/mach-realview/Kconfig"
846
847source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300848
Ben Dookscf383672009-11-10 00:14:58 +0000849source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100850source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900851source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900852source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100853
854if ARCH_S3C2410
855source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100857source "arch/arm/mach-s3c2412/Kconfig"
858source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100859source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100860endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861
Ben Dooksa08ab632008-10-21 14:06:39 +0100862if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900863source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100864endif
865
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900866source "arch/arm/mach-s5p6440/Kconfig"
867
Kukjin Kim550db7f2010-01-29 10:19:26 +0900868source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100869
Byungho Min5a7652f2009-06-23 21:39:42 +0900870if ARCH_S5PC1XX
871source "arch/arm/mach-s5pc100/Kconfig"
872endif
873
Kukjin Kim170f4e42010-02-24 16:40:44 +0900874source "arch/arm/mach-s5pv210/Kconfig"
875
Russell King882d01f2010-03-02 23:40:15 +0000876source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877
Russell King882d01f2010-03-02 23:40:15 +0000878source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800879
Russell King95b8f202010-01-14 11:43:54 +0000880source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100881
Russell King95b8f202010-01-14 11:43:54 +0000882source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883
884source "arch/arm/mach-versatile/Kconfig"
885
wanzongshun7ec80dd2008-12-03 03:55:38 +0100886source "arch/arm/mach-w90x900/Kconfig"
887
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888# Definitions to make life easier
889config ARCH_ACORN
890 bool
891
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100892config PLAT_IOP
893 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700894 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700895 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100896
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400897config PLAT_ORION
898 bool
899
Eric Miaobd5ce432009-01-20 12:06:01 +0800900config PLAT_PXA
901 bool
902
Linus Torvalds1da177e2005-04-16 15:20:36 -0700903source arch/arm/mm/Kconfig
904
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100905config IWMMXT
906 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800907 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
908 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100909 help
910 Enable support for iWMMXt context switching at run time if
911 running on a CPU that supports it.
912
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
914config XSCALE_PMU
915 bool
916 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
917 default y
918
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100919if !MMU
920source "arch/arm/Kconfig-nommu"
921endif
922
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100923config ARM_ERRATA_411920
924 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
925 depends on CPU_V6 && !SMP
926 help
927 Invalidation of the Instruction Cache operation can
928 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
929 It does not affect the MPCore. This option enables the ARM Ltd.
930 recommended workaround.
931
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100932config ARM_ERRATA_430973
933 bool "ARM errata: Stale prediction on replaced interworking branch"
934 depends on CPU_V7
935 help
936 This option enables the workaround for the 430973 Cortex-A8
937 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
938 interworking branch is replaced with another code sequence at the
939 same virtual address, whether due to self-modifying code or virtual
940 to physical address re-mapping, Cortex-A8 does not recover from the
941 stale interworking branch prediction. This results in Cortex-A8
942 executing the new code sequence in the incorrect ARM or Thumb state.
943 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
944 and also flushes the branch target cache at every context switch.
945 Note that setting specific bits in the ACTLR register may not be
946 available in non-secure mode.
947
Catalin Marinas855c5512009-04-30 17:06:15 +0100948config ARM_ERRATA_458693
949 bool "ARM errata: Processor deadlock when a false hazard is created"
950 depends on CPU_V7
951 help
952 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
953 erratum. For very specific sequences of memory operations, it is
954 possible for a hazard condition intended for a cache line to instead
955 be incorrectly associated with a different cache line. This false
956 hazard might then cause a processor deadlock. The workaround enables
957 the L1 caching of the NEON accesses and disables the PLD instruction
958 in the ACTLR register. Note that setting specific bits in the ACTLR
959 register may not be available in non-secure mode.
960
Catalin Marinas0516e462009-04-30 17:06:20 +0100961config ARM_ERRATA_460075
962 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
963 depends on CPU_V7
964 help
965 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
966 erratum. Any asynchronous access to the L2 cache may encounter a
967 situation in which recent store transactions to the L2 cache are lost
968 and overwritten with stale memory contents from external memory. The
969 workaround disables the write-allocate mode for the L2 cache via the
970 ACTLR register. Note that setting specific bits in the ACTLR register
971 may not be available in non-secure mode.
972
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973endmenu
974
975source "arch/arm/common/Kconfig"
976
977config FORCE_MAX_ZONEORDER
978 int
979 depends on SA1111
980 default "9"
981
982menu "Bus support"
983
984config ARM_AMBA
985 bool
986
987config ISA
988 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989 help
990 Find out whether you have ISA slots on your motherboard. ISA is the
991 name of a bus system, i.e. the way the CPU talks to the other stuff
992 inside your box. Other bus systems are PCI, EISA, MicroChannel
993 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
994 newer boards don't support it. If you have ISA, say Y, otherwise N.
995
Russell King065909b2006-01-04 15:44:16 +0000996# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997config ISA_DMA
998 bool
Russell King065909b2006-01-04 15:44:16 +0000999 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000
Russell King065909b2006-01-04 15:44:16 +00001001# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001002config ISA_DMA_API
1003 bool
Al Viro5cae8412005-05-04 05:39:22 +01001004
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +01001006 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007 help
1008 Find out whether you have a PCI motherboard. PCI is the name of a
1009 bus system, i.e. the way the CPU talks to the other stuff inside
1010 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1011 VESA. If you have PCI, say Y, otherwise N.
1012
Matthew Wilcox36e23592007-07-10 10:54:40 -06001013config PCI_SYSCALL
1014 def_bool PCI
1015
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016# Select the host bridge type
1017config PCI_HOST_VIA82C505
1018 bool
1019 depends on PCI && ARCH_SHARK
1020 default y
1021
Mike Rapoporta0113a92007-11-25 08:55:34 +01001022config PCI_HOST_ITE8152
1023 bool
1024 depends on PCI && MACH_ARMCORE
1025 default y
1026 select DMABOUNCE
1027
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028source "drivers/pci/Kconfig"
1029
1030source "drivers/pcmcia/Kconfig"
1031
1032endmenu
1033
1034menu "Kernel Features"
1035
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001036source "kernel/time/Kconfig"
1037
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038config SMP
1039 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001040 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001041 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001042 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001043 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001044 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045 help
1046 This enables support for systems with more than one CPU. If you have
1047 a system with only one CPU, like most personal computers, say N. If
1048 you have a system with more than one CPU, say Y.
1049
1050 If you say N here, the kernel will run on single and multiprocessor
1051 machines, but will use only one CPU of a multiprocessor machine. If
1052 you say Y here, the kernel will run on many, but not all, single
1053 processor machines. On a single processor machine, the kernel will
1054 run faster if you say N here.
1055
Adrian Bunk03502fa2008-02-03 15:50:21 +02001056 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001057 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1058 <http://www.linuxdoc.org/docs.html#howto>.
1059
1060 If you don't know what to do here, say N.
1061
Russell Kinga8cbcd92009-05-16 11:51:14 +01001062config HAVE_ARM_SCU
1063 bool
1064 depends on SMP
1065 help
1066 This option enables support for the ARM system coherency unit
1067
Russell Kingf32f4ce2009-05-16 12:14:21 +01001068config HAVE_ARM_TWD
1069 bool
1070 depends on SMP
1071 help
1072 This options enables support for the ARM timer and watchdog unit
1073
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001074choice
1075 prompt "Memory split"
1076 default VMSPLIT_3G
1077 help
1078 Select the desired split between kernel and user memory.
1079
1080 If you are not absolutely sure what you are doing, leave this
1081 option alone!
1082
1083 config VMSPLIT_3G
1084 bool "3G/1G user/kernel split"
1085 config VMSPLIT_2G
1086 bool "2G/2G user/kernel split"
1087 config VMSPLIT_1G
1088 bool "1G/3G user/kernel split"
1089endchoice
1090
1091config PAGE_OFFSET
1092 hex
1093 default 0x40000000 if VMSPLIT_1G
1094 default 0x80000000 if VMSPLIT_2G
1095 default 0xC0000000
1096
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097config NR_CPUS
1098 int "Maximum number of CPUs (2-32)"
1099 range 2 32
1100 depends on SMP
1101 default "4"
1102
Russell Kinga054a812005-11-02 22:24:33 +00001103config HOTPLUG_CPU
1104 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1105 depends on SMP && HOTPLUG && EXPERIMENTAL
1106 help
1107 Say Y here to experiment with turning CPUs off and on. CPUs
1108 can be controlled through /sys/devices/system/cpu.
1109
Russell King37ee16a2005-11-08 19:08:05 +00001110config LOCAL_TIMERS
1111 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001112 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001113 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001114 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001115 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001116 help
1117 Enable support for local timers on SMP platforms, rather then the
1118 legacy IPI broadcast method. Local timers allows the system
1119 accounting to be spread across the timer interval, preventing a
1120 "thundering herd" at every timer tick.
1121
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001122source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123
Russell Kingf8065812006-03-02 22:41:59 +00001124config HZ
1125 int
1126 default 128 if ARCH_L7200
Kukjin Kim170f4e42010-02-24 16:40:44 +09001127 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001128 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001129 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001130 default 100
1131
Catalin Marinas16c79652009-07-24 12:33:02 +01001132config THUMB2_KERNEL
1133 bool "Compile the kernel in Thumb-2 mode"
1134 depends on CPU_V7 && EXPERIMENTAL
1135 select AEABI
1136 select ARM_ASM_UNIFIED
1137 help
1138 By enabling this option, the kernel will be compiled in
1139 Thumb-2 mode. A compiler/assembler that understand the unified
1140 ARM-Thumb syntax is needed.
1141
1142 If unsure, say N.
1143
Catalin Marinas0becb082009-07-24 12:32:53 +01001144config ARM_ASM_UNIFIED
1145 bool
1146
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001147config AEABI
1148 bool "Use the ARM EABI to compile the kernel"
1149 help
1150 This option allows for the kernel to be compiled using the latest
1151 ARM ABI (aka EABI). This is only useful if you are using a user
1152 space environment that is also compiled with EABI.
1153
1154 Since there are major incompatibilities between the legacy ABI and
1155 EABI, especially with regard to structure member alignment, this
1156 option also changes the kernel syscall calling convention to
1157 disambiguate both ABIs and allow for backward compatibility support
1158 (selected with CONFIG_OABI_COMPAT).
1159
1160 To use this you need GCC version 4.0.0 or later.
1161
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001162config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001163 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001164 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001165 default y
1166 help
1167 This option preserves the old syscall interface along with the
1168 new (ARM EABI) one. It also provides a compatibility layer to
1169 intercept syscalls that have structure arguments which layout
1170 in memory differs between the legacy ABI and the new ARM EABI
1171 (only for non "thumb" binaries). This option adds a tiny
1172 overhead to all syscalls and produces a slightly larger kernel.
1173 If you know you'll be using only pure EABI user space then you
1174 can say N here. If this option is not selected and you attempt
1175 to execute a legacy ABI binary then the result will be
1176 UNPREDICTABLE (in fact it can be predicted that it won't work
1177 at all). If in doubt say Y.
1178
Mel Gormaneb335752009-05-13 17:34:48 +01001179config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001180 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001181
Russell King07a2f732008-10-01 21:39:58 +01001182# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001183config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185
Russell King05944d72006-11-30 20:43:51 +00001186config ARCH_SPARSEMEM_ENABLE
1187 bool
1188
Russell King07a2f732008-10-01 21:39:58 +01001189config ARCH_SPARSEMEM_DEFAULT
1190 def_bool ARCH_SPARSEMEM_ENABLE
1191
Russell King05944d72006-11-30 20:43:51 +00001192config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001193 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001194
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001195config NODES_SHIFT
1196 int
1197 default "4" if ARCH_LH7A40X
1198 default "2"
1199 depends on NEED_MULTIPLE_NODES
1200
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001201config HIGHMEM
1202 bool "High Memory Support (EXPERIMENTAL)"
1203 depends on MMU && EXPERIMENTAL
1204 help
1205 The address space of ARM processors is only 4 Gigabytes large
1206 and it has to accommodate user address space, kernel address
1207 space as well as some memory mapped IO. That means that, if you
1208 have a large amount of physical memory and/or IO, not all of the
1209 memory can be "permanently mapped" by the kernel. The physical
1210 memory that is not permanently mapped is called "high memory".
1211
1212 Depending on the selected kernel/user memory split, minimum
1213 vmalloc space and actual amount of RAM, you may not need this
1214 option which should result in a slightly faster kernel.
1215
1216 If unsure, say n.
1217
Russell King65cec8e2009-08-17 20:02:06 +01001218config HIGHPTE
1219 bool "Allocate 2nd-level pagetables from highmem"
1220 depends on HIGHMEM
1221 depends on !OUTER_CACHE
1222
Dave Hansen3f22ab22005-06-23 00:07:43 -07001223source "mm/Kconfig"
1224
Linus Torvalds1da177e2005-04-16 15:20:36 -07001225config LEDS
1226 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001227 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001228 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1230 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001231 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001232 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001233 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001234 help
1235 If you say Y here, the LEDs on your machine will be used
1236 to provide useful information about your current system status.
1237
1238 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1239 be able to select which LEDs are active using the options below. If
1240 you are compiling a kernel for the EBSA-110 or the LART however, the
1241 red LED will simply flash regularly to indicate that the system is
1242 still functional. It is safe to say Y here if you have a CATS
1243 system, but the driver will do nothing.
1244
1245config LEDS_TIMER
1246 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001247 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1248 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001250 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251 default y if ARCH_EBSA110
1252 help
1253 If you say Y here, one of the system LEDs (the green one on the
1254 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1255 will flash regularly to indicate that the system is still
1256 operational. This is mainly useful to kernel hackers who are
1257 debugging unstable kernels.
1258
1259 The LART uses the same LED for both Timer LED and CPU usage LED
1260 functions. You may choose to use both, but the Timer LED function
1261 will overrule the CPU usage LED.
1262
1263config LEDS_CPU
1264 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001265 !ARCH_OMAP) \
1266 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1267 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268 depends on LEDS
1269 help
1270 If you say Y here, the red LED will be used to give a good real
1271 time indication of CPU usage, by lighting whenever the idle task
1272 is not currently executing.
1273
1274 The LART uses the same LED for both Timer LED and CPU usage LED
1275 functions. You may choose to use both, but the Timer LED function
1276 will overrule the CPU usage LED.
1277
1278config ALIGNMENT_TRAP
1279 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001280 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281 default y if !ARCH_EBSA110
1282 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001283 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1285 address divisible by 4. On 32-bit ARM processors, these non-aligned
1286 fetch/store instructions will be emulated in software if you say
1287 here, which has a severe performance impact. This is necessary for
1288 correct operation of some network protocols. With an IP-only
1289 configuration it is safe to say N, otherwise say Y.
1290
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001291config UACCESS_WITH_MEMCPY
1292 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1293 depends on MMU && EXPERIMENTAL
1294 default y if CPU_FEROCEON
1295 help
1296 Implement faster copy_to_user and clear_user methods for CPU
1297 cores where a 8-word STM instruction give significantly higher
1298 memory write throughput than a sequence of individual 32bit stores.
1299
1300 A possible side effect is a slight increase in scheduling latency
1301 between threads sharing the same address space if they invoke
1302 such copy operations with large buffers.
1303
1304 However, if the CPU data cache is using a write-allocate mode,
1305 this option is unlikely to provide any performance gain.
1306
Linus Torvalds1da177e2005-04-16 15:20:36 -07001307endmenu
1308
1309menu "Boot options"
1310
1311# Compressed boot loader in ROM. Yes, we really want to ask about
1312# TEXT and BSS so we preserve their values in the config files.
1313config ZBOOT_ROM_TEXT
1314 hex "Compressed ROM boot loader base address"
1315 default "0"
1316 help
1317 The physical address at which the ROM-able zImage is to be
1318 placed in the target. Platforms which normally make use of
1319 ROM-able zImage formats normally set this to a suitable
1320 value in their defconfig file.
1321
1322 If ZBOOT_ROM is not enabled, this has no effect.
1323
1324config ZBOOT_ROM_BSS
1325 hex "Compressed ROM boot loader BSS address"
1326 default "0"
1327 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001328 The base address of an area of read/write memory in the target
1329 for the ROM-able zImage which must be available while the
1330 decompressor is running. It must be large enough to hold the
1331 entire decompressed kernel plus an additional 128 KiB.
1332 Platforms which normally make use of ROM-able zImage formats
1333 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334
1335 If ZBOOT_ROM is not enabled, this has no effect.
1336
1337config ZBOOT_ROM
1338 bool "Compressed boot loader in ROM/flash"
1339 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1340 help
1341 Say Y here if you intend to execute your compressed kernel image
1342 (zImage) directly from ROM or flash. If unsure, say N.
1343
1344config CMDLINE
1345 string "Default kernel command string"
1346 default ""
1347 help
1348 On some architectures (EBSA110 and CATS), there is currently no way
1349 for the boot loader to pass arguments to the kernel. For these
1350 architectures, you should supply some command-line options at build
1351 time by entering them here. As a minimum, you should specify the
1352 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1353
1354config XIP_KERNEL
1355 bool "Kernel Execute-In-Place from ROM"
1356 depends on !ZBOOT_ROM
1357 help
1358 Execute-In-Place allows the kernel to run from non-volatile storage
1359 directly addressable by the CPU, such as NOR flash. This saves RAM
1360 space since the text section of the kernel is not loaded from flash
1361 to RAM. Read-write sections, such as the data section and stack,
1362 are still copied to RAM. The XIP kernel is not compressed since
1363 it has to run directly from flash, so it will take more space to
1364 store it. The flash address used to link the kernel object files,
1365 and for storing it, is configuration dependent. Therefore, if you
1366 say Y here, you must know the proper physical address where to
1367 store the kernel image depending on your own flash memory usage.
1368
1369 Also note that the make target becomes "make xipImage" rather than
1370 "make zImage" or "make Image". The final kernel binary to put in
1371 ROM memory will be arch/arm/boot/xipImage.
1372
1373 If unsure, say N.
1374
1375config XIP_PHYS_ADDR
1376 hex "XIP Kernel Physical Location"
1377 depends on XIP_KERNEL
1378 default "0x00080000"
1379 help
1380 This is the physical address in your flash memory the kernel will
1381 be linked for and stored to. This address is dependent on your
1382 own flash usage.
1383
Richard Purdiec587e4a2007-02-06 21:29:00 +01001384config KEXEC
1385 bool "Kexec system call (EXPERIMENTAL)"
1386 depends on EXPERIMENTAL
1387 help
1388 kexec is a system call that implements the ability to shutdown your
1389 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001390 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001391 you can start any kernel with it, not just Linux.
1392
1393 It is an ongoing process to be certain the hardware in a machine
1394 is properly shutdown, so do not be surprised if this code does not
1395 initially work for you. It may help to enable device hotplugging
1396 support.
1397
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001398config ATAGS_PROC
1399 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001400 depends on KEXEC
1401 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001402 help
1403 Should the atags used to boot the kernel be exported in an "atags"
1404 file in procfs. Useful with kexec.
1405
Linus Torvalds1da177e2005-04-16 15:20:36 -07001406endmenu
1407
Russell Kingac9d7ef2008-08-18 17:26:00 +01001408menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409
Ben Dooks89c52ed2009-07-30 23:23:24 +01001410if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411
1412source "drivers/cpufreq/Kconfig"
1413
1414config CPU_FREQ_SA1100
1415 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416
1417config CPU_FREQ_SA1110
1418 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001419
1420config CPU_FREQ_INTEGRATOR
1421 tristate "CPUfreq driver for ARM Integrator CPUs"
1422 depends on ARCH_INTEGRATOR && CPU_FREQ
1423 default y
1424 help
1425 This enables the CPUfreq driver for ARM Integrator CPUs.
1426
1427 For details, take a look at <file:Documentation/cpu-freq>.
1428
1429 If in doubt, say Y.
1430
Russell King9e2697f2007-12-14 13:30:14 +00001431config CPU_FREQ_PXA
1432 bool
1433 depends on CPU_FREQ && ARCH_PXA && PXA25x
1434 default y
1435 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1436
Mark Brownb3748dd2009-06-15 11:23:20 +01001437config CPU_FREQ_S3C64XX
1438 bool "CPUfreq support for Samsung S3C64XX CPUs"
1439 depends on CPU_FREQ && CPU_S3C6410
1440
Ben Dooks9d56c022009-07-30 23:23:25 +01001441config CPU_FREQ_S3C
1442 bool
1443 help
1444 Internal configuration node for common cpufreq on Samsung SoC
1445
1446config CPU_FREQ_S3C24XX
1447 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1448 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1449 select CPU_FREQ_S3C
1450 help
1451 This enables the CPUfreq driver for the Samsung S3C24XX family
1452 of CPUs.
1453
1454 For details, take a look at <file:Documentation/cpu-freq>.
1455
1456 If in doubt, say N.
1457
1458config CPU_FREQ_S3C24XX_PLL
1459 bool "Support CPUfreq changing of PLL frequency"
1460 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1461 help
1462 Compile in support for changing the PLL frequency from the
1463 S3C24XX series CPUfreq driver. The PLL takes time to settle
1464 after a frequency change, so by default it is not enabled.
1465
1466 This also means that the PLL tables for the selected CPU(s) will
1467 be built which may increase the size of the kernel image.
1468
1469config CPU_FREQ_S3C24XX_DEBUG
1470 bool "Debug CPUfreq Samsung driver core"
1471 depends on CPU_FREQ_S3C24XX
1472 help
1473 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1474
1475config CPU_FREQ_S3C24XX_IODEBUG
1476 bool "Debug CPUfreq Samsung driver IO timing"
1477 depends on CPU_FREQ_S3C24XX
1478 help
1479 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1480
Ben Dookse6d197a2009-07-30 23:23:42 +01001481config CPU_FREQ_S3C24XX_DEBUGFS
1482 bool "Export debugfs for CPUFreq"
1483 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1484 help
1485 Export status information via debugfs.
1486
Linus Torvalds1da177e2005-04-16 15:20:36 -07001487endif
1488
Russell Kingac9d7ef2008-08-18 17:26:00 +01001489source "drivers/cpuidle/Kconfig"
1490
1491endmenu
1492
Linus Torvalds1da177e2005-04-16 15:20:36 -07001493menu "Floating point emulation"
1494
1495comment "At least one emulation must be selected"
1496
1497config FPE_NWFPE
1498 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001499 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500 ---help---
1501 Say Y to include the NWFPE floating point emulator in the kernel.
1502 This is necessary to run most binaries. Linux does not currently
1503 support floating point hardware so you need to say Y here even if
1504 your machine has an FPA or floating point co-processor podule.
1505
1506 You may say N here if you are going to load the Acorn FPEmulator
1507 early in the bootup.
1508
1509config FPE_NWFPE_XP
1510 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001511 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001512 help
1513 Say Y to include 80-bit support in the kernel floating-point
1514 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1515 Note that gcc does not generate 80-bit operations by default,
1516 so in most cases this option only enlarges the size of the
1517 floating point emulator without any good reason.
1518
1519 You almost surely want to say N here.
1520
1521config FPE_FASTFPE
1522 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001523 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001524 ---help---
1525 Say Y here to include the FAST floating point emulator in the kernel.
1526 This is an experimental much faster emulator which now also has full
1527 precision for the mantissa. It does not support any exceptions.
1528 It is very simple, and approximately 3-6 times faster than NWFPE.
1529
1530 It should be sufficient for most programs. It may be not suitable
1531 for scientific calculations, but you have to check this for yourself.
1532 If you do not feel you need a faster FP emulation you should better
1533 choose NWFPE.
1534
1535config VFP
1536 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001537 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001538 help
1539 Say Y to include VFP support code in the kernel. This is needed
1540 if your hardware includes a VFP unit.
1541
1542 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1543 release notes and additional status information.
1544
1545 Say N if your target does not have VFP hardware.
1546
Catalin Marinas25ebee02007-09-25 15:22:24 +01001547config VFPv3
1548 bool
1549 depends on VFP
1550 default y if CPU_V7
1551
Catalin Marinasb5872db2008-01-10 19:16:17 +01001552config NEON
1553 bool "Advanced SIMD (NEON) Extension support"
1554 depends on VFPv3 && CPU_V7
1555 help
1556 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1557 Extension.
1558
Linus Torvalds1da177e2005-04-16 15:20:36 -07001559endmenu
1560
1561menu "Userspace binary formats"
1562
1563source "fs/Kconfig.binfmt"
1564
1565config ARTHUR
1566 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001567 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001568 help
1569 Say Y here to include the kernel code necessary if you want to run
1570 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1571 experimental; if this sounds frightening, say N and sleep in peace.
1572 You can also say M here to compile this support as a module (which
1573 will be called arthur).
1574
1575endmenu
1576
1577menu "Power management options"
1578
Russell Kingeceab4a2005-11-15 11:31:41 +00001579source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001580
Johannes Bergf4cb5702007-12-08 02:14:00 +01001581config ARCH_SUSPEND_POSSIBLE
1582 def_bool y
1583
Linus Torvalds1da177e2005-04-16 15:20:36 -07001584endmenu
1585
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001586source "net/Kconfig"
1587
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001588source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001589
1590source "fs/Kconfig"
1591
Linus Torvalds1da177e2005-04-16 15:20:36 -07001592source "arch/arm/Kconfig.debug"
1593
1594source "security/Kconfig"
1595
1596source "crypto/Kconfig"
1597
1598source "lib/Kconfig"