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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
313 select ARCH_MTD_XIP
314 select GENERIC_GPIO
315 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100316 select HAVE_CLK
Russell King788c9702009-04-26 14:21:59 +0100317 help
318 Support for Freescale MXC/iMX-based family of processors
319
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100320config ARCH_STMP3XXX
321 bool "Freescale STMP3xxx"
322 select CPU_ARM926T
323 select HAVE_CLK
324 select COMMON_CLKDEV
325 select ARCH_REQUIRE_GPIOLIB
326 select GENERIC_TIME
327 select GENERIC_CLOCKEVENTS
328 select GENERIC_GPIO
329 select USB_ARCH_HAS_EHCI
330 help
331 Support for systems based on the Freescale 3xxx CPUs.
332
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100333config ARCH_NETX
334 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000335 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100336 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100337 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100338 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000339 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100340 This enables support for systems based on the Hilscher NetX Soc
341
342config ARCH_H720X
343 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000344 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100345 select ISA_DMA_API
346 help
347 This enables support for systems based on the Hynix HMS720x
348
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100349config ARCH_NOMADIK
350 bool "STMicroelectronics Nomadik"
351 select ARM_AMBA
352 select ARM_VIC
353 select CPU_ARM926T
354 select HAVE_CLK
355 select COMMON_CLKDEV
356 select GENERIC_TIME
357 select GENERIC_CLOCKEVENTS
Alessandro Rubini2ec1d352009-07-02 15:29:12 +0100358 select GENERIC_GPIO
359 select ARCH_REQUIRE_GPIOLIB
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100360 help
361 Support for the Nomadik platform by ST-Ericsson
362
Russell King3b938be2007-05-12 11:25:44 +0100363config ARCH_IOP13XX
364 bool "IOP13xx-based"
365 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000366 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100367 select PLAT_IOP
368 select PCI
369 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100370 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100371 help
372 Support for Intel's IOP13XX (XScale) family of processors.
373
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100374config ARCH_IOP32X
375 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100376 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000377 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100378 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100379 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100380 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100381 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000382 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100383 Support for Intel's 80219 and IOP32X (XScale) family of
384 processors.
385
386config ARCH_IOP33X
387 bool "IOP33x-based"
388 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000389 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100390 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100391 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100392 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100393 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100394 help
395 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396
Russell King3b938be2007-05-12 11:25:44 +0100397config ARCH_IXP23XX
398 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100399 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000400 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100401 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100402 help
Russell King3b938be2007-05-12 11:25:44 +0100403 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404
405config ARCH_IXP2000
406 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100407 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000408 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100409 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000410 help
411 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412
Russell King3b938be2007-05-12 11:25:44 +0100413config ARCH_IXP4XX
414 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100415 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000416 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100417 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100418 select GENERIC_TIME
419 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100420 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100421 help
Russell King3b938be2007-05-12 11:25:44 +0100422 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100423
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424config ARCH_L7200
425 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000426 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427 select FIQ
428 help
429 Say Y here if you intend to run this kernel on a LinkUp Systems
430 L7200 Software Development Board which uses an ARM720T processor.
431 Information on this board can be obtained at:
432
433 <http://www.linkupsys.com/>
434
435 If you have any questions or comments about the Linux kernel port
436 to this board, send e-mail to <sjhill@cotw.com>.
437
Saeed Bisharaedabd382009-08-06 15:12:43 +0300438config ARCH_DOVE
439 bool "Marvell Dove"
440 select PCI
441 select GENERIC_GPIO
442 select ARCH_REQUIRE_GPIOLIB
443 select GENERIC_TIME
444 select GENERIC_CLOCKEVENTS
445 select PLAT_ORION
446 help
447 Support for the Marvell Dove SoC 88AP510
448
Saeed Bishara651c74c2008-06-22 22:45:06 +0200449config ARCH_KIRKWOOD
450 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000451 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200452 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200453 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700454 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200455 select GENERIC_TIME
456 select GENERIC_CLOCKEVENTS
457 select PLAT_ORION
458 help
459 Support for the following Marvell Kirkwood series SoCs:
460 88F6180, 88F6192 and 88F6281.
461
Russell King788c9702009-04-26 14:21:59 +0100462config ARCH_LOKI
463 bool "Marvell Loki (88RC8480)"
464 select CPU_FEROCEON
465 select GENERIC_TIME
466 select GENERIC_CLOCKEVENTS
467 select PLAT_ORION
468 help
469 Support for the Marvell Loki (88RC8480) SoC.
470
471config ARCH_MV78XX0
472 bool "Marvell MV78xx0"
473 select CPU_FEROCEON
474 select PCI
475 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700476 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100477 select GENERIC_TIME
478 select GENERIC_CLOCKEVENTS
479 select PLAT_ORION
480 help
481 Support for the following Marvell MV78xx0 series SoCs:
482 MV781x0, MV782x0.
483
484config ARCH_ORION5X
485 bool "Marvell Orion"
486 depends on MMU
487 select CPU_FEROCEON
488 select PCI
489 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700490 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100491 select GENERIC_TIME
492 select GENERIC_CLOCKEVENTS
493 select PLAT_ORION
494 help
495 Support for the following Marvell Orion 5x series SoCs:
496 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
497 Orion-2 (5281), Orion-1-90 (6183).
498
499config ARCH_MMP
500 bool "Marvell PXA168/910"
501 depends on MMU
502 select GENERIC_GPIO
503 select ARCH_REQUIRE_GPIOLIB
504 select HAVE_CLK
505 select COMMON_CLKDEV
506 select GENERIC_TIME
507 select GENERIC_CLOCKEVENTS
508 select TICK_ONESHOT
509 select PLAT_PXA
510 help
511 Support for Marvell's PXA168/910 processor line.
512
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100513config ARCH_KS8695
514 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000515 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100516 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000517 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100518 help
519 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
520 System-on-Chip devices.
521
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100522config ARCH_NS9XXX
523 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000524 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100525 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100526 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100527 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700528 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100529 help
530 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
531 System.
532
533 <http://www.digi.com/products/microprocessors/index.jsp>
534
Russell King788c9702009-04-26 14:21:59 +0100535config ARCH_W90X900
536 bool "Nuvoton W90X900 CPU"
537 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100538 select ARCH_REQUIRE_GPIOLIB
539 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100540 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100541 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100542 select GENERIC_TIME
543 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200544 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100545 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
546 At present, the w90x900 has been renamed nuc900, regarding
547 the ARM series product line, you can login the following
548 link address to know more.
549
550 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
551 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400552
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100553config ARCH_PNX4008
554 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000555 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700556 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100557 help
558 This enables support for Philips PNX4008 mobile platform.
559
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700561 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100562 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500563 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100564 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800565 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700566 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000567 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700568 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100569 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100570 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000571 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800572 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000573 help
eric miao2c8086a2007-09-11 19:13:17 -0700574 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575
Russell King788c9702009-04-26 14:21:59 +0100576config ARCH_MSM
577 bool "Qualcomm MSM"
578 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800579 select GENERIC_TIME
580 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800581 help
Russell King788c9702009-04-26 14:21:59 +0100582 Support for Qualcomm MSM7K based systems. This runs on the ARM11
583 apps processor of the MSM7K and depends on a shared memory
584 interface to the ARM9 modem processor which runs the baseband stack
585 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800586
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587config ARCH_RPC
588 bool "RiscPC"
589 select ARCH_ACORN
590 select FIQ
591 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100592 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100593 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000594 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000595 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100596 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597 help
598 On the Acorn Risc-PC, Linux can support the internal IDE disk and
599 CD-ROM interface, serial and parallel port, and the floppy drive.
600
601config ARCH_SA1100
602 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000603 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100604 select ISA
Russell King05944d72006-11-30 20:43:51 +0000605 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500606 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100607 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000608 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800609 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000610 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100611 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700612 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100613 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700614 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000615 help
616 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617
618config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100619 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800620 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100621 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700622 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623 help
624 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
625 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000626 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627
Ben Dooksa08ab632008-10-21 14:06:39 +0100628config ARCH_S3C64XX
629 bool "Samsung S3C64XX"
630 select GENERIC_GPIO
631 select HAVE_CLK
Ben Dooks89c52ed2009-07-30 23:23:24 +0100632 select ARCH_HAS_CPUFREQ
Ben Dooksa08ab632008-10-21 14:06:39 +0100633 help
634 Samsung S3C64XX series based systems
635
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900636config ARCH_S5P6440
637 bool "Samsung S5P6440"
638 select CPU_V6
639 select GENERIC_GPIO
640 select HAVE_CLK
641 help
642 Samsung S5P6440 CPU based systems
643
Byungho Min5a7652f2009-06-23 21:39:42 +0900644config ARCH_S5PC1XX
645 bool "Samsung S5PC1XX"
646 select GENERIC_GPIO
647 select HAVE_CLK
648 select CPU_V7
649 help
650 Samsung S5PC1XX series based systems
651
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652config ARCH_SHARK
653 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000654 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100655 select ISA
656 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100657 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100658 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000659 help
660 Support for the StrongARM based Digital DNARD machine, also known
661 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700662
663config ARCH_LH7A40X
664 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000665 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100666 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
667 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668 help
669 Say Y here for systems based on one of the Sharp LH7A40X
670 System on a Chip processors. These CPUs include an ARM922T
671 core with a wide array of integrated devices for
672 hand-held and low-power applications.
673
Linus Walleijd98aac72009-04-27 10:21:46 +0100674config ARCH_U300
675 bool "ST-Ericsson U300 Series"
676 depends on MMU
677 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100678 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100679 select ARM_AMBA
680 select ARM_VIC
681 select GENERIC_TIME
682 select GENERIC_CLOCKEVENTS
683 select HAVE_CLK
684 select COMMON_CLKDEV
685 select GENERIC_GPIO
686 help
687 Support for ST-Ericsson U300 series mobile platforms.
688
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100689config ARCH_DAVINCI
690 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000691 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100692 select GENERIC_TIME
693 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100694 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700695 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700696 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100697 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700698 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700699 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700700 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530701 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100702 help
703 Support for TI's DaVinci platform.
704
Russell King3b938be2007-05-12 11:25:44 +0100705config ARCH_OMAP
706 bool "TI OMAP"
707 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700708 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700709 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100710 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100711 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700712 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100713 help
714 Support for TI's OMAP platform (OMAP1 and OMAP2).
715
Leo Chen6288e282009-08-07 19:46:15 +0100716config ARCH_BCMRING
717 bool "Broadcom BCMRING"
718 depends on MMU
719 select CPU_V6
720 select ARM_AMBA
721 select COMMON_CLKDEV
722 select GENERIC_TIME
723 select GENERIC_CLOCKEVENTS
724 select ARCH_WANT_OPTIONAL_GPIOLIB
725 help
726 Support for Broadcom's BCMRing platform.
727
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100728config ARCH_U8500
729 bool "ST-Ericsson U8500 Series"
730 select CPU_V7
731 select ARM_AMBA
732 select GENERIC_TIME
733 select GENERIC_CLOCKEVENTS
734 select COMMON_CLKDEV
735 help
736 Support for ST-Ericsson's Ux500 architecture
737
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738endchoice
739
740source "arch/arm/mach-clps711x/Kconfig"
741
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000742source "arch/arm/mach-ep93xx/Kconfig"
743
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744source "arch/arm/mach-footbridge/Kconfig"
745
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200746source "arch/arm/mach-gemini/Kconfig"
747
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748source "arch/arm/mach-integrator/Kconfig"
749
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100750source "arch/arm/mach-iop32x/Kconfig"
751
752source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753
Dan Williams285f5fa2006-12-07 02:59:39 +0100754source "arch/arm/mach-iop13xx/Kconfig"
755
Linus Torvalds1da177e2005-04-16 15:20:36 -0700756source "arch/arm/mach-ixp4xx/Kconfig"
757
758source "arch/arm/mach-ixp2000/Kconfig"
759
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100760source "arch/arm/mach-ixp23xx/Kconfig"
761
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200762source "arch/arm/mach-loki/Kconfig"
763
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200764source "arch/arm/mach-mv78xx0/Kconfig"
765
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766source "arch/arm/mach-pxa/Kconfig"
Eric Miaobd5ce432009-01-20 12:06:01 +0800767source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768
Eric Miao49cbe782009-01-20 14:15:18 +0800769source "arch/arm/mach-mmp/Kconfig"
770
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771source "arch/arm/mach-sa1100/Kconfig"
772
Tony Lindgrend48af152005-07-10 19:58:17 +0100773source "arch/arm/plat-omap/Kconfig"
774
775source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776
Tony Lindgren1dbae812005-11-10 14:26:51 +0000777source "arch/arm/mach-omap2/Kconfig"
778
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400779source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400780
Saeed Bishara651c74c2008-06-22 22:45:06 +0200781source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700782
Saeed Bisharaedabd382009-08-06 15:12:43 +0300783source "arch/arm/mach-dove/Kconfig"
784
Ben Dookscf383672009-11-10 00:14:58 +0000785source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100786source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100787source "arch/arm/plat-s3c64xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100788source "arch/arm/plat-s3c/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900789source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900790source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100791
792if ARCH_S3C2410
793source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100795source "arch/arm/mach-s3c2412/Kconfig"
796source "arch/arm/mach-s3c2440/Kconfig"
797source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100798source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100799endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800
Ben Dooksa08ab632008-10-21 14:06:39 +0100801if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900802source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100803endif
804
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900805source "arch/arm/mach-s5p6440/Kconfig"
806
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100807source "arch/arm/plat-stmp3xxx/Kconfig"
808
Byungho Min5a7652f2009-06-23 21:39:42 +0900809if ARCH_S5PC1XX
810source "arch/arm/mach-s5pc100/Kconfig"
811endif
812
Linus Torvalds1da177e2005-04-16 15:20:36 -0700813source "arch/arm/mach-lh7a40x/Kconfig"
814
Linus Torvalds1da177e2005-04-16 15:20:36 -0700815source "arch/arm/mach-h720x/Kconfig"
816
817source "arch/arm/mach-versatile/Kconfig"
818
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100819source "arch/arm/mach-aaec2000/Kconfig"
820
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000821source "arch/arm/mach-realview/Kconfig"
822
Andrew Victor9d041262007-02-05 11:42:07 +0100823source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000824
Quinn Jensen52c543f2007-07-09 22:06:53 +0100825source "arch/arm/plat-mxc/Kconfig"
826
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100827source "arch/arm/mach-nomadik/Kconfig"
Srinidhi Kasagar59b559d2009-11-12 06:20:54 +0100828source "arch/arm/plat-nomadik/Kconfig"
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100829
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100830source "arch/arm/mach-netx/Kconfig"
831
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100832source "arch/arm/mach-ns9xxx/Kconfig"
833
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100834source "arch/arm/mach-davinci/Kconfig"
835
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100836source "arch/arm/mach-ks8695/Kconfig"
837
Brian Swetland9e73c842007-11-26 04:12:13 -0800838source "arch/arm/mach-msm/Kconfig"
839
Linus Walleijd98aac72009-04-27 10:21:46 +0100840source "arch/arm/mach-u300/Kconfig"
841
wanzongshun7ec80dd2008-12-03 03:55:38 +0100842source "arch/arm/mach-w90x900/Kconfig"
843
Leo Chen6288e282009-08-07 19:46:15 +0100844source "arch/arm/mach-bcmring/Kconfig"
845
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100846source "arch/arm/mach-ux500/Kconfig"
847
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848# Definitions to make life easier
849config ARCH_ACORN
850 bool
851
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100852config PLAT_IOP
853 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700854 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700855 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100856
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400857config PLAT_ORION
858 bool
859
Eric Miaobd5ce432009-01-20 12:06:01 +0800860config PLAT_PXA
861 bool
862
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863source arch/arm/mm/Kconfig
864
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100865config IWMMXT
866 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800867 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
868 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100869 help
870 Enable support for iWMMXt context switching at run time if
871 running on a CPU that supports it.
872
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
874config XSCALE_PMU
875 bool
876 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
877 default y
878
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100879if !MMU
880source "arch/arm/Kconfig-nommu"
881endif
882
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100883config ARM_ERRATA_411920
884 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
885 depends on CPU_V6 && !SMP
886 help
887 Invalidation of the Instruction Cache operation can
888 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
889 It does not affect the MPCore. This option enables the ARM Ltd.
890 recommended workaround.
891
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100892config ARM_ERRATA_430973
893 bool "ARM errata: Stale prediction on replaced interworking branch"
894 depends on CPU_V7
895 help
896 This option enables the workaround for the 430973 Cortex-A8
897 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
898 interworking branch is replaced with another code sequence at the
899 same virtual address, whether due to self-modifying code or virtual
900 to physical address re-mapping, Cortex-A8 does not recover from the
901 stale interworking branch prediction. This results in Cortex-A8
902 executing the new code sequence in the incorrect ARM or Thumb state.
903 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
904 and also flushes the branch target cache at every context switch.
905 Note that setting specific bits in the ACTLR register may not be
906 available in non-secure mode.
907
Catalin Marinas855c5512009-04-30 17:06:15 +0100908config ARM_ERRATA_458693
909 bool "ARM errata: Processor deadlock when a false hazard is created"
910 depends on CPU_V7
911 help
912 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
913 erratum. For very specific sequences of memory operations, it is
914 possible for a hazard condition intended for a cache line to instead
915 be incorrectly associated with a different cache line. This false
916 hazard might then cause a processor deadlock. The workaround enables
917 the L1 caching of the NEON accesses and disables the PLD instruction
918 in the ACTLR register. Note that setting specific bits in the ACTLR
919 register may not be available in non-secure mode.
920
Catalin Marinas0516e462009-04-30 17:06:20 +0100921config ARM_ERRATA_460075
922 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
923 depends on CPU_V7
924 help
925 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
926 erratum. Any asynchronous access to the L2 cache may encounter a
927 situation in which recent store transactions to the L2 cache are lost
928 and overwritten with stale memory contents from external memory. The
929 workaround disables the write-allocate mode for the L2 cache via the
930 ACTLR register. Note that setting specific bits in the ACTLR register
931 may not be available in non-secure mode.
932
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933endmenu
934
935source "arch/arm/common/Kconfig"
936
937config FORCE_MAX_ZONEORDER
938 int
939 depends on SA1111
940 default "9"
941
942menu "Bus support"
943
944config ARM_AMBA
945 bool
946
947config ISA
948 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949 help
950 Find out whether you have ISA slots on your motherboard. ISA is the
951 name of a bus system, i.e. the way the CPU talks to the other stuff
952 inside your box. Other bus systems are PCI, EISA, MicroChannel
953 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
954 newer boards don't support it. If you have ISA, say Y, otherwise N.
955
Russell King065909b2006-01-04 15:44:16 +0000956# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957config ISA_DMA
958 bool
Russell King065909b2006-01-04 15:44:16 +0000959 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960
Russell King065909b2006-01-04 15:44:16 +0000961# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100962config ISA_DMA_API
963 bool
Al Viro5cae8412005-05-04 05:39:22 +0100964
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100966 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967 help
968 Find out whether you have a PCI motherboard. PCI is the name of a
969 bus system, i.e. the way the CPU talks to the other stuff inside
970 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
971 VESA. If you have PCI, say Y, otherwise N.
972
Matthew Wilcox36e23592007-07-10 10:54:40 -0600973config PCI_SYSCALL
974 def_bool PCI
975
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976# Select the host bridge type
977config PCI_HOST_VIA82C505
978 bool
979 depends on PCI && ARCH_SHARK
980 default y
981
Mike Rapoporta0113a92007-11-25 08:55:34 +0100982config PCI_HOST_ITE8152
983 bool
984 depends on PCI && MACH_ARMCORE
985 default y
986 select DMABOUNCE
987
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988source "drivers/pci/Kconfig"
989
990source "drivers/pcmcia/Kconfig"
991
992endmenu
993
994menu "Kernel Features"
995
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100996source "kernel/time/Kconfig"
997
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998config SMP
999 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001000 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001001 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001002 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001003 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001004 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005 help
1006 This enables support for systems with more than one CPU. If you have
1007 a system with only one CPU, like most personal computers, say N. If
1008 you have a system with more than one CPU, say Y.
1009
1010 If you say N here, the kernel will run on single and multiprocessor
1011 machines, but will use only one CPU of a multiprocessor machine. If
1012 you say Y here, the kernel will run on many, but not all, single
1013 processor machines. On a single processor machine, the kernel will
1014 run faster if you say N here.
1015
Adrian Bunk03502fa2008-02-03 15:50:21 +02001016 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1018 <http://www.linuxdoc.org/docs.html#howto>.
1019
1020 If you don't know what to do here, say N.
1021
Russell Kinga8cbcd92009-05-16 11:51:14 +01001022config HAVE_ARM_SCU
1023 bool
1024 depends on SMP
1025 help
1026 This option enables support for the ARM system coherency unit
1027
Russell Kingf32f4ce2009-05-16 12:14:21 +01001028config HAVE_ARM_TWD
1029 bool
1030 depends on SMP
1031 help
1032 This options enables support for the ARM timer and watchdog unit
1033
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001034choice
1035 prompt "Memory split"
1036 default VMSPLIT_3G
1037 help
1038 Select the desired split between kernel and user memory.
1039
1040 If you are not absolutely sure what you are doing, leave this
1041 option alone!
1042
1043 config VMSPLIT_3G
1044 bool "3G/1G user/kernel split"
1045 config VMSPLIT_2G
1046 bool "2G/2G user/kernel split"
1047 config VMSPLIT_1G
1048 bool "1G/3G user/kernel split"
1049endchoice
1050
1051config PAGE_OFFSET
1052 hex
1053 default 0x40000000 if VMSPLIT_1G
1054 default 0x80000000 if VMSPLIT_2G
1055 default 0xC0000000
1056
Linus Torvalds1da177e2005-04-16 15:20:36 -07001057config NR_CPUS
1058 int "Maximum number of CPUs (2-32)"
1059 range 2 32
1060 depends on SMP
1061 default "4"
1062
Russell Kinga054a812005-11-02 22:24:33 +00001063config HOTPLUG_CPU
1064 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1065 depends on SMP && HOTPLUG && EXPERIMENTAL
1066 help
1067 Say Y here to experiment with turning CPUs off and on. CPUs
1068 can be controlled through /sys/devices/system/cpu.
1069
Russell King37ee16a2005-11-08 19:08:05 +00001070config LOCAL_TIMERS
1071 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001072 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001073 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001074 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001075 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001076 help
1077 Enable support for local timers on SMP platforms, rather then the
1078 legacy IPI broadcast method. Local timers allows the system
1079 accounting to be spread across the timer interval, preventing a
1080 "thundering herd" at every timer tick.
1081
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001082source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083
Russell Kingf8065812006-03-02 22:41:59 +00001084config HZ
1085 int
1086 default 128 if ARCH_L7200
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001087 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440
Russell Kingbfe65702006-03-04 11:01:53 +00001088 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001089 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001090 default 100
1091
Catalin Marinas16c79652009-07-24 12:33:02 +01001092config THUMB2_KERNEL
1093 bool "Compile the kernel in Thumb-2 mode"
1094 depends on CPU_V7 && EXPERIMENTAL
1095 select AEABI
1096 select ARM_ASM_UNIFIED
1097 help
1098 By enabling this option, the kernel will be compiled in
1099 Thumb-2 mode. A compiler/assembler that understand the unified
1100 ARM-Thumb syntax is needed.
1101
1102 If unsure, say N.
1103
Catalin Marinas0becb082009-07-24 12:32:53 +01001104config ARM_ASM_UNIFIED
1105 bool
1106
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001107config AEABI
1108 bool "Use the ARM EABI to compile the kernel"
1109 help
1110 This option allows for the kernel to be compiled using the latest
1111 ARM ABI (aka EABI). This is only useful if you are using a user
1112 space environment that is also compiled with EABI.
1113
1114 Since there are major incompatibilities between the legacy ABI and
1115 EABI, especially with regard to structure member alignment, this
1116 option also changes the kernel syscall calling convention to
1117 disambiguate both ABIs and allow for backward compatibility support
1118 (selected with CONFIG_OABI_COMPAT).
1119
1120 To use this you need GCC version 4.0.0 or later.
1121
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001122config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001123 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001124 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001125 default y
1126 help
1127 This option preserves the old syscall interface along with the
1128 new (ARM EABI) one. It also provides a compatibility layer to
1129 intercept syscalls that have structure arguments which layout
1130 in memory differs between the legacy ABI and the new ARM EABI
1131 (only for non "thumb" binaries). This option adds a tiny
1132 overhead to all syscalls and produces a slightly larger kernel.
1133 If you know you'll be using only pure EABI user space then you
1134 can say N here. If this option is not selected and you attempt
1135 to execute a legacy ABI binary then the result will be
1136 UNPREDICTABLE (in fact it can be predicted that it won't work
1137 at all). If in doubt say Y.
1138
Mel Gormaneb335752009-05-13 17:34:48 +01001139config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001140 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001141
Russell King07a2f732008-10-01 21:39:58 +01001142# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001143config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001144 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001145
Russell King05944d72006-11-30 20:43:51 +00001146config ARCH_SPARSEMEM_ENABLE
1147 bool
1148
Russell King07a2f732008-10-01 21:39:58 +01001149config ARCH_SPARSEMEM_DEFAULT
1150 def_bool ARCH_SPARSEMEM_ENABLE
1151
Russell King05944d72006-11-30 20:43:51 +00001152config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001153 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001154
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001155config NODES_SHIFT
1156 int
1157 default "4" if ARCH_LH7A40X
1158 default "2"
1159 depends on NEED_MULTIPLE_NODES
1160
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001161config HIGHMEM
1162 bool "High Memory Support (EXPERIMENTAL)"
1163 depends on MMU && EXPERIMENTAL
1164 help
1165 The address space of ARM processors is only 4 Gigabytes large
1166 and it has to accommodate user address space, kernel address
1167 space as well as some memory mapped IO. That means that, if you
1168 have a large amount of physical memory and/or IO, not all of the
1169 memory can be "permanently mapped" by the kernel. The physical
1170 memory that is not permanently mapped is called "high memory".
1171
1172 Depending on the selected kernel/user memory split, minimum
1173 vmalloc space and actual amount of RAM, you may not need this
1174 option which should result in a slightly faster kernel.
1175
1176 If unsure, say n.
1177
Russell King65cec8e2009-08-17 20:02:06 +01001178config HIGHPTE
1179 bool "Allocate 2nd-level pagetables from highmem"
1180 depends on HIGHMEM
1181 depends on !OUTER_CACHE
1182
Dave Hansen3f22ab22005-06-23 00:07:43 -07001183source "mm/Kconfig"
1184
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185config LEDS
1186 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001187 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001188 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1190 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001191 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001192 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001193 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001194 help
1195 If you say Y here, the LEDs on your machine will be used
1196 to provide useful information about your current system status.
1197
1198 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1199 be able to select which LEDs are active using the options below. If
1200 you are compiling a kernel for the EBSA-110 or the LART however, the
1201 red LED will simply flash regularly to indicate that the system is
1202 still functional. It is safe to say Y here if you have a CATS
1203 system, but the driver will do nothing.
1204
1205config LEDS_TIMER
1206 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001207 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1208 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001210 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001211 default y if ARCH_EBSA110
1212 help
1213 If you say Y here, one of the system LEDs (the green one on the
1214 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1215 will flash regularly to indicate that the system is still
1216 operational. This is mainly useful to kernel hackers who are
1217 debugging unstable kernels.
1218
1219 The LART uses the same LED for both Timer LED and CPU usage LED
1220 functions. You may choose to use both, but the Timer LED function
1221 will overrule the CPU usage LED.
1222
1223config LEDS_CPU
1224 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001225 !ARCH_OMAP) \
1226 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1227 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001228 depends on LEDS
1229 help
1230 If you say Y here, the red LED will be used to give a good real
1231 time indication of CPU usage, by lighting whenever the idle task
1232 is not currently executing.
1233
1234 The LART uses the same LED for both Timer LED and CPU usage LED
1235 functions. You may choose to use both, but the Timer LED function
1236 will overrule the CPU usage LED.
1237
1238config ALIGNMENT_TRAP
1239 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001240 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001241 default y if !ARCH_EBSA110
1242 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001243 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001244 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1245 address divisible by 4. On 32-bit ARM processors, these non-aligned
1246 fetch/store instructions will be emulated in software if you say
1247 here, which has a severe performance impact. This is necessary for
1248 correct operation of some network protocols. With an IP-only
1249 configuration it is safe to say N, otherwise say Y.
1250
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001251config UACCESS_WITH_MEMCPY
1252 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1253 depends on MMU && EXPERIMENTAL
1254 default y if CPU_FEROCEON
1255 help
1256 Implement faster copy_to_user and clear_user methods for CPU
1257 cores where a 8-word STM instruction give significantly higher
1258 memory write throughput than a sequence of individual 32bit stores.
1259
1260 A possible side effect is a slight increase in scheduling latency
1261 between threads sharing the same address space if they invoke
1262 such copy operations with large buffers.
1263
1264 However, if the CPU data cache is using a write-allocate mode,
1265 this option is unlikely to provide any performance gain.
1266
Linus Torvalds1da177e2005-04-16 15:20:36 -07001267endmenu
1268
1269menu "Boot options"
1270
1271# Compressed boot loader in ROM. Yes, we really want to ask about
1272# TEXT and BSS so we preserve their values in the config files.
1273config ZBOOT_ROM_TEXT
1274 hex "Compressed ROM boot loader base address"
1275 default "0"
1276 help
1277 The physical address at which the ROM-able zImage is to be
1278 placed in the target. Platforms which normally make use of
1279 ROM-able zImage formats normally set this to a suitable
1280 value in their defconfig file.
1281
1282 If ZBOOT_ROM is not enabled, this has no effect.
1283
1284config ZBOOT_ROM_BSS
1285 hex "Compressed ROM boot loader BSS address"
1286 default "0"
1287 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001288 The base address of an area of read/write memory in the target
1289 for the ROM-able zImage which must be available while the
1290 decompressor is running. It must be large enough to hold the
1291 entire decompressed kernel plus an additional 128 KiB.
1292 Platforms which normally make use of ROM-able zImage formats
1293 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001294
1295 If ZBOOT_ROM is not enabled, this has no effect.
1296
1297config ZBOOT_ROM
1298 bool "Compressed boot loader in ROM/flash"
1299 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1300 help
1301 Say Y here if you intend to execute your compressed kernel image
1302 (zImage) directly from ROM or flash. If unsure, say N.
1303
1304config CMDLINE
1305 string "Default kernel command string"
1306 default ""
1307 help
1308 On some architectures (EBSA110 and CATS), there is currently no way
1309 for the boot loader to pass arguments to the kernel. For these
1310 architectures, you should supply some command-line options at build
1311 time by entering them here. As a minimum, you should specify the
1312 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1313
1314config XIP_KERNEL
1315 bool "Kernel Execute-In-Place from ROM"
1316 depends on !ZBOOT_ROM
1317 help
1318 Execute-In-Place allows the kernel to run from non-volatile storage
1319 directly addressable by the CPU, such as NOR flash. This saves RAM
1320 space since the text section of the kernel is not loaded from flash
1321 to RAM. Read-write sections, such as the data section and stack,
1322 are still copied to RAM. The XIP kernel is not compressed since
1323 it has to run directly from flash, so it will take more space to
1324 store it. The flash address used to link the kernel object files,
1325 and for storing it, is configuration dependent. Therefore, if you
1326 say Y here, you must know the proper physical address where to
1327 store the kernel image depending on your own flash memory usage.
1328
1329 Also note that the make target becomes "make xipImage" rather than
1330 "make zImage" or "make Image". The final kernel binary to put in
1331 ROM memory will be arch/arm/boot/xipImage.
1332
1333 If unsure, say N.
1334
1335config XIP_PHYS_ADDR
1336 hex "XIP Kernel Physical Location"
1337 depends on XIP_KERNEL
1338 default "0x00080000"
1339 help
1340 This is the physical address in your flash memory the kernel will
1341 be linked for and stored to. This address is dependent on your
1342 own flash usage.
1343
Richard Purdiec587e4a2007-02-06 21:29:00 +01001344config KEXEC
1345 bool "Kexec system call (EXPERIMENTAL)"
1346 depends on EXPERIMENTAL
1347 help
1348 kexec is a system call that implements the ability to shutdown your
1349 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001350 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001351 you can start any kernel with it, not just Linux.
1352
1353 It is an ongoing process to be certain the hardware in a machine
1354 is properly shutdown, so do not be surprised if this code does not
1355 initially work for you. It may help to enable device hotplugging
1356 support.
1357
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001358config ATAGS_PROC
1359 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001360 depends on KEXEC
1361 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001362 help
1363 Should the atags used to boot the kernel be exported in an "atags"
1364 file in procfs. Useful with kexec.
1365
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366endmenu
1367
Russell Kingac9d7ef2008-08-18 17:26:00 +01001368menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001369
Ben Dooks89c52ed2009-07-30 23:23:24 +01001370if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371
1372source "drivers/cpufreq/Kconfig"
1373
1374config CPU_FREQ_SA1100
1375 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376
1377config CPU_FREQ_SA1110
1378 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379
1380config CPU_FREQ_INTEGRATOR
1381 tristate "CPUfreq driver for ARM Integrator CPUs"
1382 depends on ARCH_INTEGRATOR && CPU_FREQ
1383 default y
1384 help
1385 This enables the CPUfreq driver for ARM Integrator CPUs.
1386
1387 For details, take a look at <file:Documentation/cpu-freq>.
1388
1389 If in doubt, say Y.
1390
Russell King9e2697f2007-12-14 13:30:14 +00001391config CPU_FREQ_PXA
1392 bool
1393 depends on CPU_FREQ && ARCH_PXA && PXA25x
1394 default y
1395 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1396
Mark Brownb3748dd2009-06-15 11:23:20 +01001397config CPU_FREQ_S3C64XX
1398 bool "CPUfreq support for Samsung S3C64XX CPUs"
1399 depends on CPU_FREQ && CPU_S3C6410
1400
Ben Dooks9d56c022009-07-30 23:23:25 +01001401config CPU_FREQ_S3C
1402 bool
1403 help
1404 Internal configuration node for common cpufreq on Samsung SoC
1405
1406config CPU_FREQ_S3C24XX
1407 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1408 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1409 select CPU_FREQ_S3C
1410 help
1411 This enables the CPUfreq driver for the Samsung S3C24XX family
1412 of CPUs.
1413
1414 For details, take a look at <file:Documentation/cpu-freq>.
1415
1416 If in doubt, say N.
1417
1418config CPU_FREQ_S3C24XX_PLL
1419 bool "Support CPUfreq changing of PLL frequency"
1420 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1421 help
1422 Compile in support for changing the PLL frequency from the
1423 S3C24XX series CPUfreq driver. The PLL takes time to settle
1424 after a frequency change, so by default it is not enabled.
1425
1426 This also means that the PLL tables for the selected CPU(s) will
1427 be built which may increase the size of the kernel image.
1428
1429config CPU_FREQ_S3C24XX_DEBUG
1430 bool "Debug CPUfreq Samsung driver core"
1431 depends on CPU_FREQ_S3C24XX
1432 help
1433 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1434
1435config CPU_FREQ_S3C24XX_IODEBUG
1436 bool "Debug CPUfreq Samsung driver IO timing"
1437 depends on CPU_FREQ_S3C24XX
1438 help
1439 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1440
Ben Dookse6d197a2009-07-30 23:23:42 +01001441config CPU_FREQ_S3C24XX_DEBUGFS
1442 bool "Export debugfs for CPUFreq"
1443 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1444 help
1445 Export status information via debugfs.
1446
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447endif
1448
Russell Kingac9d7ef2008-08-18 17:26:00 +01001449source "drivers/cpuidle/Kconfig"
1450
1451endmenu
1452
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453menu "Floating point emulation"
1454
1455comment "At least one emulation must be selected"
1456
1457config FPE_NWFPE
1458 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001459 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460 ---help---
1461 Say Y to include the NWFPE floating point emulator in the kernel.
1462 This is necessary to run most binaries. Linux does not currently
1463 support floating point hardware so you need to say Y here even if
1464 your machine has an FPA or floating point co-processor podule.
1465
1466 You may say N here if you are going to load the Acorn FPEmulator
1467 early in the bootup.
1468
1469config FPE_NWFPE_XP
1470 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001471 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472 help
1473 Say Y to include 80-bit support in the kernel floating-point
1474 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1475 Note that gcc does not generate 80-bit operations by default,
1476 so in most cases this option only enlarges the size of the
1477 floating point emulator without any good reason.
1478
1479 You almost surely want to say N here.
1480
1481config FPE_FASTFPE
1482 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001483 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001484 ---help---
1485 Say Y here to include the FAST floating point emulator in the kernel.
1486 This is an experimental much faster emulator which now also has full
1487 precision for the mantissa. It does not support any exceptions.
1488 It is very simple, and approximately 3-6 times faster than NWFPE.
1489
1490 It should be sufficient for most programs. It may be not suitable
1491 for scientific calculations, but you have to check this for yourself.
1492 If you do not feel you need a faster FP emulation you should better
1493 choose NWFPE.
1494
1495config VFP
1496 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001497 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498 help
1499 Say Y to include VFP support code in the kernel. This is needed
1500 if your hardware includes a VFP unit.
1501
1502 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1503 release notes and additional status information.
1504
1505 Say N if your target does not have VFP hardware.
1506
Catalin Marinas25ebee02007-09-25 15:22:24 +01001507config VFPv3
1508 bool
1509 depends on VFP
1510 default y if CPU_V7
1511
Catalin Marinasb5872db2008-01-10 19:16:17 +01001512config NEON
1513 bool "Advanced SIMD (NEON) Extension support"
1514 depends on VFPv3 && CPU_V7
1515 help
1516 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1517 Extension.
1518
Linus Torvalds1da177e2005-04-16 15:20:36 -07001519endmenu
1520
1521menu "Userspace binary formats"
1522
1523source "fs/Kconfig.binfmt"
1524
1525config ARTHUR
1526 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001527 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001528 help
1529 Say Y here to include the kernel code necessary if you want to run
1530 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1531 experimental; if this sounds frightening, say N and sleep in peace.
1532 You can also say M here to compile this support as a module (which
1533 will be called arthur).
1534
1535endmenu
1536
1537menu "Power management options"
1538
Russell Kingeceab4a2005-11-15 11:31:41 +00001539source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540
Johannes Bergf4cb5702007-12-08 02:14:00 +01001541config ARCH_SUSPEND_POSSIBLE
1542 def_bool y
1543
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544endmenu
1545
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001546source "net/Kconfig"
1547
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001548source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001549
1550source "fs/Kconfig"
1551
Linus Torvalds1da177e2005-04-16 15:20:36 -07001552source "arch/arm/Kconfig.debug"
1553
1554source "security/Kconfig"
1555
1556source "crypto/Kconfig"
1557
1558source "lib/Kconfig"