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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
Will Deacon24b44a62010-01-20 19:05:07 +010015 select GENERIC_ATOMIC64 if (!CPU_32v6K)
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050016 select HAVE_OPROFILE
Jason Wessel5cbad0e2008-02-20 13:33:40 -060017 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050018 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080019 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040020 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040021 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080022 select HAVE_KERNEL_GZIP
23 select HAVE_KERNEL_LZO
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 help
25 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000026 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000028 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 Europe. There is an ARM Linux project with a web page at
30 <http://www.arm.linux.org.uk/>.
31
Russell King1a189b92008-04-13 21:41:55 +010032config HAVE_PWM
33 bool
34
Ralf Baechle75e71532007-02-09 17:08:58 +000035config SYS_SUPPORTS_APM_EMULATION
36 bool
37
David Brownell0a938b92007-03-05 00:30:18 -080038config GENERIC_GPIO
39 bool
David Brownell0a938b92007-03-05 00:30:18 -080040
Kevin Hilman746140c2006-09-22 00:16:30 +010041config GENERIC_TIME
42 bool
Kevin Hilman746140c2006-09-22 00:16:30 +010043
Kevin Hilman0567a0c2007-03-13 20:29:24 +010044config GENERIC_CLOCKEVENTS
45 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010046
Catalin Marinasa8655e82008-02-04 17:30:57 +010047config GENERIC_CLOCKEVENTS_BROADCAST
48 bool
49 depends on GENERIC_CLOCKEVENTS
50 default y if SMP && !LOCAL_TIMERS
51
Linus Walleijbc581772009-09-15 17:30:37 +010052config HAVE_TCM
53 bool
54 select GENERIC_ALLOCATOR
55
Russell Kinge119bff2010-01-10 17:23:29 +000056config HAVE_PROC_CPU
57 bool
58
Al Viro5ea81762007-02-11 15:41:31 +000059config NO_IOPORT
60 bool
Al Viro5ea81762007-02-11 15:41:31 +000061
Linus Torvalds1da177e2005-04-16 15:20:36 -070062config EISA
63 bool
64 ---help---
65 The Extended Industry Standard Architecture (EISA) bus was
66 developed as an open alternative to the IBM MicroChannel bus.
67
68 The EISA bus provided some of the features of the IBM MicroChannel
69 bus while maintaining backward compatibility with cards made for
70 the older ISA bus. The EISA bus saw limited use between 1988 and
71 1995 when it was made obsolete by the PCI bus.
72
73 Say Y here if you are building a kernel for an EISA-based machine.
74
75 Otherwise, say N.
76
77config SBUS
78 bool
79
80config MCA
81 bool
82 help
83 MicroChannel Architecture is found in some IBM PS/2 machines and
84 laptops. It is a bus system similar to PCI or ISA. See
85 <file:Documentation/mca.txt> (and especially the web page given
86 there) before attempting to build an MCA bus kernel.
87
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010088config GENERIC_HARDIRQS
89 bool
90 default y
91
Russell Kingf16fb1e2007-04-28 09:59:37 +010092config STACKTRACE_SUPPORT
93 bool
94 default y
95
Nicolas Pitref76e9152008-04-24 01:31:46 -040096config HAVE_LATENCYTOP_SUPPORT
97 bool
98 depends on !SMP
99 default y
100
Russell Kingf16fb1e2007-04-28 09:59:37 +0100101config LOCKDEP_SUPPORT
102 bool
103 default y
104
Russell King7ad1bcb2006-08-27 12:07:02 +0100105config TRACE_IRQFLAGS_SUPPORT
106 bool
107 default y
108
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100109config HARDIRQS_SW_RESEND
110 bool
111 default y
112
113config GENERIC_IRQ_PROBE
114 bool
115 default y
116
Nick Piggin95c354f2008-01-30 13:31:20 +0100117config GENERIC_LOCKBREAK
118 bool
119 default y
120 depends on SMP && PREEMPT
121
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122config RWSEM_GENERIC_SPINLOCK
123 bool
124 default y
125
126config RWSEM_XCHGADD_ALGORITHM
127 bool
128
David Howellsf0d1b0b2006-12-08 02:37:49 -0800129config ARCH_HAS_ILOG2_U32
130 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800131
132config ARCH_HAS_ILOG2_U64
133 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800134
Ben Dooks89c52ed2009-07-30 23:23:24 +0100135config ARCH_HAS_CPUFREQ
136 bool
137 help
138 Internal node to signify that the ARCH has CPUFREQ support
139 and that the relevant menu configurations are displayed for
140 it.
141
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800142config GENERIC_HWEIGHT
143 bool
144 default y
145
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146config GENERIC_CALIBRATE_DELAY
147 bool
148 default y
149
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100150config ARCH_MAY_HAVE_PC_FDC
151 bool
152
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800153config ZONE_DMA
154 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800155
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156config GENERIC_ISA_DMA
157 bool
158
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159config FIQ
160 bool
161
Al Viro034d2f52005-12-19 16:27:59 -0500162config ARCH_MTD_XIP
163 bool
164
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100165config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100166 def_bool y
167
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500168if OPROFILE
169
170config OPROFILE_ARMV6
171 def_bool y
172 depends on CPU_V6 && !SMP
173 select OPROFILE_ARM11_CORE
174
175config OPROFILE_MPCORE
176 def_bool y
177 depends on CPU_V6 && SMP
178 select OPROFILE_ARM11_CORE
179
180config OPROFILE_ARM11_CORE
181 bool
182
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100183config OPROFILE_ARMV7
184 def_bool y
185 depends on CPU_V7 && !SMP
186 bool
187
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500188endif
189
Hyok S. Choic760fc12006-03-27 15:18:50 +0100190config VECTORS_BASE
191 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900192 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100193 default DRAM_BASE if REMAP_VECTORS_TO_RAM
194 default 0x00000000
195 help
196 The base address of exception vectors.
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198source "init/Kconfig"
199
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700200source "kernel/Kconfig.freezer"
201
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202menu "System Type"
203
Hyok S. Choi3c427972009-07-24 12:35:00 +0100204config MMU
205 bool "MMU-based Paged Memory Management Support"
206 default y
207 help
208 Select if you want MMU-based virtualised addressing space
209 support by paged memory management. If unsure, say 'Y'.
210
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211choice
212 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000213 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100215config ARCH_AAEC2000
216 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000217 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100218 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700219 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100220 help
221 This enables support for systems based on the Agilent AAEC-2000
222
223config ARCH_INTEGRATOR
224 bool "ARM Ltd. Integrator family"
225 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100226 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700227 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000228 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100229 select ICST525
230 help
231 Support for ARM's Integrator platform.
232
233config ARCH_REALVIEW
234 bool "ARM Ltd. RealView family"
235 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700236 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000237 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100238 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100239 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100240 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100241 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100242 help
243 This enables support for ARM Ltd RealView boards.
244
245config ARCH_VERSATILE
246 bool "ARM Ltd. Versatile family"
247 select ARM_AMBA
248 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700249 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000250 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100251 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100252 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100253 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100254 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100255 help
256 This enables support for ARM Ltd Versatile board.
257
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100258config ARCH_AT91
259 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800260 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100261 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700262 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100263 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100264 This enables support for systems based on the Atmel AT91RM9200,
265 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100266
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100268 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000269 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000270 help
271 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272
Russell King788c9702009-04-26 14:21:59 +0100273config ARCH_GEMINI
274 bool "Cortina Systems Gemini"
275 select CPU_FA526
276 select GENERIC_GPIO
277 select ARCH_REQUIRE_GPIOLIB
278 help
279 Support for the Cortina Systems Gemini family SoCs
280
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281config ARCH_EBSA110
282 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000283 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100284 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000285 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 help
287 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000288 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289 Ethernet interface, two PCMCIA sockets, two serial ports and a
290 parallel port.
291
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000292config ARCH_EP93XX
293 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000294 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000295 select ARM_AMBA
296 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100297 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700298 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000299 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700300 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100301 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000302 help
303 This enables support for the Cirrus EP93xx series of CPUs.
304
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305config ARCH_FOOTBRIDGE
306 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000307 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000309 help
310 Support for systems based on the DC21285 companion chip
311 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312
Russell King788c9702009-04-26 14:21:59 +0100313config ARCH_MXC
314 bool "Freescale MXC/iMX-based"
315 select GENERIC_TIME
316 select GENERIC_CLOCKEVENTS
317 select ARCH_MTD_XIP
318 select GENERIC_GPIO
319 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100320 select HAVE_CLK
Russell King788c9702009-04-26 14:21:59 +0100321 help
322 Support for Freescale MXC/iMX-based family of processors
323
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100324config ARCH_STMP3XXX
325 bool "Freescale STMP3xxx"
326 select CPU_ARM926T
327 select HAVE_CLK
328 select COMMON_CLKDEV
329 select ARCH_REQUIRE_GPIOLIB
330 select GENERIC_TIME
331 select GENERIC_CLOCKEVENTS
332 select GENERIC_GPIO
333 select USB_ARCH_HAS_EHCI
334 help
335 Support for systems based on the Freescale 3xxx CPUs.
336
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100337config ARCH_NETX
338 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000339 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100340 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100341 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100342 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000343 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100344 This enables support for systems based on the Hilscher NetX Soc
345
346config ARCH_H720X
347 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000348 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100349 select ISA_DMA_API
350 help
351 This enables support for systems based on the Hynix HMS720x
352
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100353config ARCH_NOMADIK
354 bool "STMicroelectronics Nomadik"
355 select ARM_AMBA
356 select ARM_VIC
357 select CPU_ARM926T
358 select HAVE_CLK
359 select COMMON_CLKDEV
360 select GENERIC_TIME
361 select GENERIC_CLOCKEVENTS
Alessandro Rubini2ec1d352009-07-02 15:29:12 +0100362 select GENERIC_GPIO
363 select ARCH_REQUIRE_GPIOLIB
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100364 help
365 Support for the Nomadik platform by ST-Ericsson
366
Russell King3b938be2007-05-12 11:25:44 +0100367config ARCH_IOP13XX
368 bool "IOP13xx-based"
369 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000370 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100371 select PLAT_IOP
372 select PCI
373 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100374 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100375 help
376 Support for Intel's IOP13XX (XScale) family of processors.
377
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100378config ARCH_IOP32X
379 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100380 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000381 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100382 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100383 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100384 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100385 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000386 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100387 Support for Intel's 80219 and IOP32X (XScale) family of
388 processors.
389
390config ARCH_IOP33X
391 bool "IOP33x-based"
392 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000393 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100394 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100395 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100396 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100397 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100398 help
399 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400
Russell King3b938be2007-05-12 11:25:44 +0100401config ARCH_IXP23XX
402 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100403 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000404 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100405 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100406 help
Russell King3b938be2007-05-12 11:25:44 +0100407 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408
409config ARCH_IXP2000
410 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100411 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000412 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100413 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000414 help
415 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416
Russell King3b938be2007-05-12 11:25:44 +0100417config ARCH_IXP4XX
418 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100419 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000420 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100421 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100422 select GENERIC_TIME
423 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100424 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100425 help
Russell King3b938be2007-05-12 11:25:44 +0100426 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100427
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428config ARCH_L7200
429 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000430 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431 select FIQ
432 help
433 Say Y here if you intend to run this kernel on a LinkUp Systems
434 L7200 Software Development Board which uses an ARM720T processor.
435 Information on this board can be obtained at:
436
437 <http://www.linkupsys.com/>
438
439 If you have any questions or comments about the Linux kernel port
440 to this board, send e-mail to <sjhill@cotw.com>.
441
Saeed Bisharaedabd382009-08-06 15:12:43 +0300442config ARCH_DOVE
443 bool "Marvell Dove"
444 select PCI
445 select GENERIC_GPIO
446 select ARCH_REQUIRE_GPIOLIB
447 select GENERIC_TIME
448 select GENERIC_CLOCKEVENTS
449 select PLAT_ORION
450 help
451 Support for the Marvell Dove SoC 88AP510
452
Saeed Bishara651c74c2008-06-22 22:45:06 +0200453config ARCH_KIRKWOOD
454 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000455 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200456 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200457 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700458 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200459 select GENERIC_TIME
460 select GENERIC_CLOCKEVENTS
461 select PLAT_ORION
462 help
463 Support for the following Marvell Kirkwood series SoCs:
464 88F6180, 88F6192 and 88F6281.
465
Russell King788c9702009-04-26 14:21:59 +0100466config ARCH_LOKI
467 bool "Marvell Loki (88RC8480)"
468 select CPU_FEROCEON
469 select GENERIC_TIME
470 select GENERIC_CLOCKEVENTS
471 select PLAT_ORION
472 help
473 Support for the Marvell Loki (88RC8480) SoC.
474
475config ARCH_MV78XX0
476 bool "Marvell MV78xx0"
477 select CPU_FEROCEON
478 select PCI
479 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700480 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100481 select GENERIC_TIME
482 select GENERIC_CLOCKEVENTS
483 select PLAT_ORION
484 help
485 Support for the following Marvell MV78xx0 series SoCs:
486 MV781x0, MV782x0.
487
488config ARCH_ORION5X
489 bool "Marvell Orion"
490 depends on MMU
491 select CPU_FEROCEON
492 select PCI
493 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700494 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100495 select GENERIC_TIME
496 select GENERIC_CLOCKEVENTS
497 select PLAT_ORION
498 help
499 Support for the following Marvell Orion 5x series SoCs:
500 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
501 Orion-2 (5281), Orion-1-90 (6183).
502
503config ARCH_MMP
504 bool "Marvell PXA168/910"
505 depends on MMU
506 select GENERIC_GPIO
507 select ARCH_REQUIRE_GPIOLIB
508 select HAVE_CLK
509 select COMMON_CLKDEV
510 select GENERIC_TIME
511 select GENERIC_CLOCKEVENTS
512 select TICK_ONESHOT
513 select PLAT_PXA
514 help
515 Support for Marvell's PXA168/910 processor line.
516
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100517config ARCH_KS8695
518 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000519 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100520 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000521 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100522 help
523 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
524 System-on-Chip devices.
525
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100526config ARCH_NS9XXX
527 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000528 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100529 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100530 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100531 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700532 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100533 help
534 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
535 System.
536
537 <http://www.digi.com/products/microprocessors/index.jsp>
538
Russell King788c9702009-04-26 14:21:59 +0100539config ARCH_W90X900
540 bool "Nuvoton W90X900 CPU"
541 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100542 select ARCH_REQUIRE_GPIOLIB
543 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100544 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100545 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100546 select GENERIC_TIME
547 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200548 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100549 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
550 At present, the w90x900 has been renamed nuc900, regarding
551 the ARM series product line, you can login the following
552 link address to know more.
553
554 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
555 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400556
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100557config ARCH_PNX4008
558 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000559 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700560 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100561 help
562 This enables support for Philips PNX4008 mobile platform.
563
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700565 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100566 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500567 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100568 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800569 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700570 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000571 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700572 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100573 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100574 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000575 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800576 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000577 help
eric miao2c8086a2007-09-11 19:13:17 -0700578 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579
Russell King788c9702009-04-26 14:21:59 +0100580config ARCH_MSM
581 bool "Qualcomm MSM"
582 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800583 select GENERIC_TIME
584 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800585 help
Russell King788c9702009-04-26 14:21:59 +0100586 Support for Qualcomm MSM7K based systems. This runs on the ARM11
587 apps processor of the MSM7K and depends on a shared memory
588 interface to the ARM9 modem processor which runs the baseband stack
589 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800590
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591config ARCH_RPC
592 bool "RiscPC"
593 select ARCH_ACORN
594 select FIQ
595 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100596 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100597 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000598 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000599 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100600 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601 help
602 On the Acorn Risc-PC, Linux can support the internal IDE disk and
603 CD-ROM interface, serial and parallel port, and the floppy drive.
604
605config ARCH_SA1100
606 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000607 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100608 select ISA
Russell King05944d72006-11-30 20:43:51 +0000609 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500610 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100611 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000612 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800613 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000614 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100615 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700616 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100617 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700618 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000619 help
620 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621
622config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100623 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800624 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100625 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700626 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627 help
628 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
629 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000630 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631
Ben Dooksa08ab632008-10-21 14:06:39 +0100632config ARCH_S3C64XX
633 bool "Samsung S3C64XX"
634 select GENERIC_GPIO
635 select HAVE_CLK
Ben Dooks89c52ed2009-07-30 23:23:24 +0100636 select ARCH_HAS_CPUFREQ
Ben Dooksa08ab632008-10-21 14:06:39 +0100637 help
638 Samsung S3C64XX series based systems
639
Byungho Min5a7652f2009-06-23 21:39:42 +0900640config ARCH_S5PC1XX
641 bool "Samsung S5PC1XX"
642 select GENERIC_GPIO
643 select HAVE_CLK
644 select CPU_V7
645 help
646 Samsung S5PC1XX series based systems
647
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648config ARCH_SHARK
649 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000650 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100651 select ISA
652 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100653 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100654 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000655 help
656 Support for the StrongARM based Digital DNARD machine, also known
657 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658
659config ARCH_LH7A40X
660 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000661 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100662 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
663 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664 help
665 Say Y here for systems based on one of the Sharp LH7A40X
666 System on a Chip processors. These CPUs include an ARM922T
667 core with a wide array of integrated devices for
668 hand-held and low-power applications.
669
Linus Walleijd98aac72009-04-27 10:21:46 +0100670config ARCH_U300
671 bool "ST-Ericsson U300 Series"
672 depends on MMU
673 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100674 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100675 select ARM_AMBA
676 select ARM_VIC
677 select GENERIC_TIME
678 select GENERIC_CLOCKEVENTS
679 select HAVE_CLK
680 select COMMON_CLKDEV
681 select GENERIC_GPIO
682 help
683 Support for ST-Ericsson U300 series mobile platforms.
684
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100685config ARCH_DAVINCI
686 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000687 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100688 select GENERIC_TIME
689 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100690 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700691 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700692 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100693 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700694 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700695 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700696 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530697 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100698 help
699 Support for TI's DaVinci platform.
700
Russell King3b938be2007-05-12 11:25:44 +0100701config ARCH_OMAP
702 bool "TI OMAP"
703 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700704 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700705 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100706 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100707 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700708 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100709 help
710 Support for TI's OMAP platform (OMAP1 and OMAP2).
711
Leo Chen6288e282009-08-07 19:46:15 +0100712config ARCH_BCMRING
713 bool "Broadcom BCMRING"
714 depends on MMU
715 select CPU_V6
716 select ARM_AMBA
717 select COMMON_CLKDEV
718 select GENERIC_TIME
719 select GENERIC_CLOCKEVENTS
720 select ARCH_WANT_OPTIONAL_GPIOLIB
721 help
722 Support for Broadcom's BCMRing platform.
723
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100724config ARCH_U8500
725 bool "ST-Ericsson U8500 Series"
726 select CPU_V7
727 select ARM_AMBA
728 select GENERIC_TIME
729 select GENERIC_CLOCKEVENTS
730 select COMMON_CLKDEV
731 help
732 Support for ST-Ericsson's Ux500 architecture
733
Linus Torvalds1da177e2005-04-16 15:20:36 -0700734endchoice
735
736source "arch/arm/mach-clps711x/Kconfig"
737
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000738source "arch/arm/mach-ep93xx/Kconfig"
739
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740source "arch/arm/mach-footbridge/Kconfig"
741
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200742source "arch/arm/mach-gemini/Kconfig"
743
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744source "arch/arm/mach-integrator/Kconfig"
745
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100746source "arch/arm/mach-iop32x/Kconfig"
747
748source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749
Dan Williams285f5fa2006-12-07 02:59:39 +0100750source "arch/arm/mach-iop13xx/Kconfig"
751
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752source "arch/arm/mach-ixp4xx/Kconfig"
753
754source "arch/arm/mach-ixp2000/Kconfig"
755
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100756source "arch/arm/mach-ixp23xx/Kconfig"
757
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200758source "arch/arm/mach-loki/Kconfig"
759
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200760source "arch/arm/mach-mv78xx0/Kconfig"
761
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762source "arch/arm/mach-pxa/Kconfig"
Eric Miaobd5ce432009-01-20 12:06:01 +0800763source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700764
Eric Miao49cbe782009-01-20 14:15:18 +0800765source "arch/arm/mach-mmp/Kconfig"
766
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767source "arch/arm/mach-sa1100/Kconfig"
768
Tony Lindgrend48af152005-07-10 19:58:17 +0100769source "arch/arm/plat-omap/Kconfig"
770
771source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772
Tony Lindgren1dbae812005-11-10 14:26:51 +0000773source "arch/arm/mach-omap2/Kconfig"
774
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400775source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400776
Saeed Bishara651c74c2008-06-22 22:45:06 +0200777source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778
Saeed Bisharaedabd382009-08-06 15:12:43 +0300779source "arch/arm/mach-dove/Kconfig"
780
Ben Dookscf383672009-11-10 00:14:58 +0000781source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100782source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100783source "arch/arm/plat-s3c64xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100784source "arch/arm/plat-s3c/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900785source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100786
787if ARCH_S3C2410
788source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700789source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100790source "arch/arm/mach-s3c2412/Kconfig"
791source "arch/arm/mach-s3c2440/Kconfig"
792source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100793source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100794endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700795
Ben Dooksa08ab632008-10-21 14:06:39 +0100796if ARCH_S3C64XX
797source "arch/arm/mach-s3c6400/Kconfig"
798source "arch/arm/mach-s3c6410/Kconfig"
799endif
800
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100801source "arch/arm/plat-stmp3xxx/Kconfig"
802
Byungho Min5a7652f2009-06-23 21:39:42 +0900803if ARCH_S5PC1XX
804source "arch/arm/mach-s5pc100/Kconfig"
805endif
806
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807source "arch/arm/mach-lh7a40x/Kconfig"
808
Linus Torvalds1da177e2005-04-16 15:20:36 -0700809source "arch/arm/mach-h720x/Kconfig"
810
811source "arch/arm/mach-versatile/Kconfig"
812
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100813source "arch/arm/mach-aaec2000/Kconfig"
814
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000815source "arch/arm/mach-realview/Kconfig"
816
Andrew Victor9d041262007-02-05 11:42:07 +0100817source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000818
Quinn Jensen52c543f2007-07-09 22:06:53 +0100819source "arch/arm/plat-mxc/Kconfig"
820
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100821source "arch/arm/mach-nomadik/Kconfig"
Srinidhi Kasagar59b559d2009-11-12 06:20:54 +0100822source "arch/arm/plat-nomadik/Kconfig"
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100823
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100824source "arch/arm/mach-netx/Kconfig"
825
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100826source "arch/arm/mach-ns9xxx/Kconfig"
827
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100828source "arch/arm/mach-davinci/Kconfig"
829
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100830source "arch/arm/mach-ks8695/Kconfig"
831
Brian Swetland9e73c842007-11-26 04:12:13 -0800832source "arch/arm/mach-msm/Kconfig"
833
Linus Walleijd98aac72009-04-27 10:21:46 +0100834source "arch/arm/mach-u300/Kconfig"
835
wanzongshun7ec80dd2008-12-03 03:55:38 +0100836source "arch/arm/mach-w90x900/Kconfig"
837
Leo Chen6288e282009-08-07 19:46:15 +0100838source "arch/arm/mach-bcmring/Kconfig"
839
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100840source "arch/arm/mach-ux500/Kconfig"
841
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842# Definitions to make life easier
843config ARCH_ACORN
844 bool
845
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100846config PLAT_IOP
847 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700848 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700849 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100850
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400851config PLAT_ORION
852 bool
853
Eric Miaobd5ce432009-01-20 12:06:01 +0800854config PLAT_PXA
855 bool
856
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857source arch/arm/mm/Kconfig
858
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100859config IWMMXT
860 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800861 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
862 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100863 help
864 Enable support for iWMMXt context switching at run time if
865 running on a CPU that supports it.
866
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
868config XSCALE_PMU
869 bool
870 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
871 default y
872
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100873if !MMU
874source "arch/arm/Kconfig-nommu"
875endif
876
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100877config ARM_ERRATA_411920
878 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
879 depends on CPU_V6 && !SMP
880 help
881 Invalidation of the Instruction Cache operation can
882 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
883 It does not affect the MPCore. This option enables the ARM Ltd.
884 recommended workaround.
885
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100886config ARM_ERRATA_430973
887 bool "ARM errata: Stale prediction on replaced interworking branch"
888 depends on CPU_V7
889 help
890 This option enables the workaround for the 430973 Cortex-A8
891 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
892 interworking branch is replaced with another code sequence at the
893 same virtual address, whether due to self-modifying code or virtual
894 to physical address re-mapping, Cortex-A8 does not recover from the
895 stale interworking branch prediction. This results in Cortex-A8
896 executing the new code sequence in the incorrect ARM or Thumb state.
897 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
898 and also flushes the branch target cache at every context switch.
899 Note that setting specific bits in the ACTLR register may not be
900 available in non-secure mode.
901
Catalin Marinas855c5512009-04-30 17:06:15 +0100902config ARM_ERRATA_458693
903 bool "ARM errata: Processor deadlock when a false hazard is created"
904 depends on CPU_V7
905 help
906 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
907 erratum. For very specific sequences of memory operations, it is
908 possible for a hazard condition intended for a cache line to instead
909 be incorrectly associated with a different cache line. This false
910 hazard might then cause a processor deadlock. The workaround enables
911 the L1 caching of the NEON accesses and disables the PLD instruction
912 in the ACTLR register. Note that setting specific bits in the ACTLR
913 register may not be available in non-secure mode.
914
Catalin Marinas0516e462009-04-30 17:06:20 +0100915config ARM_ERRATA_460075
916 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
917 depends on CPU_V7
918 help
919 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
920 erratum. Any asynchronous access to the L2 cache may encounter a
921 situation in which recent store transactions to the L2 cache are lost
922 and overwritten with stale memory contents from external memory. The
923 workaround disables the write-allocate mode for the L2 cache via the
924 ACTLR register. Note that setting specific bits in the ACTLR register
925 may not be available in non-secure mode.
926
Santosh Shilimkar9e655822010-02-04 19:42:42 +0100927config PL310_ERRATA_588369
928 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
929 depends on CACHE_L2X0 && ARCH_OMAP4
930 help
931 The PL310 L2 cache controller implements three types of Clean &
932 Invalidate maintenance operations: by Physical Address
933 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
934 They are architecturally defined to behave as the execution of a
935 clean operation followed immediately by an invalidate operation,
936 both performing to the same memory location. This functionality
937 is not correctly implemented in PL310 as clean lines are not
938 invalidated as a result of these operations. Note that this errata
939 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940endmenu
941
942source "arch/arm/common/Kconfig"
943
944config FORCE_MAX_ZONEORDER
945 int
946 depends on SA1111
947 default "9"
948
949menu "Bus support"
950
951config ARM_AMBA
952 bool
953
954config ISA
955 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956 help
957 Find out whether you have ISA slots on your motherboard. ISA is the
958 name of a bus system, i.e. the way the CPU talks to the other stuff
959 inside your box. Other bus systems are PCI, EISA, MicroChannel
960 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
961 newer boards don't support it. If you have ISA, say Y, otherwise N.
962
Russell King065909b2006-01-04 15:44:16 +0000963# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964config ISA_DMA
965 bool
Russell King065909b2006-01-04 15:44:16 +0000966 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967
Russell King065909b2006-01-04 15:44:16 +0000968# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100969config ISA_DMA_API
970 bool
Al Viro5cae8412005-05-04 05:39:22 +0100971
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100973 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974 help
975 Find out whether you have a PCI motherboard. PCI is the name of a
976 bus system, i.e. the way the CPU talks to the other stuff inside
977 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
978 VESA. If you have PCI, say Y, otherwise N.
979
Matthew Wilcox36e23592007-07-10 10:54:40 -0600980config PCI_SYSCALL
981 def_bool PCI
982
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983# Select the host bridge type
984config PCI_HOST_VIA82C505
985 bool
986 depends on PCI && ARCH_SHARK
987 default y
988
Mike Rapoporta0113a92007-11-25 08:55:34 +0100989config PCI_HOST_ITE8152
990 bool
991 depends on PCI && MACH_ARMCORE
992 default y
993 select DMABOUNCE
994
Linus Torvalds1da177e2005-04-16 15:20:36 -0700995source "drivers/pci/Kconfig"
996
997source "drivers/pcmcia/Kconfig"
998
999endmenu
1000
1001menu "Kernel Features"
1002
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001003source "kernel/time/Kconfig"
1004
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005config SMP
1006 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001007 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001008 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001009 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001010 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001011 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012 help
1013 This enables support for systems with more than one CPU. If you have
1014 a system with only one CPU, like most personal computers, say N. If
1015 you have a system with more than one CPU, say Y.
1016
1017 If you say N here, the kernel will run on single and multiprocessor
1018 machines, but will use only one CPU of a multiprocessor machine. If
1019 you say Y here, the kernel will run on many, but not all, single
1020 processor machines. On a single processor machine, the kernel will
1021 run faster if you say N here.
1022
Adrian Bunk03502fa2008-02-03 15:50:21 +02001023 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1025 <http://www.linuxdoc.org/docs.html#howto>.
1026
1027 If you don't know what to do here, say N.
1028
Russell Kinga8cbcd92009-05-16 11:51:14 +01001029config HAVE_ARM_SCU
1030 bool
1031 depends on SMP
1032 help
1033 This option enables support for the ARM system coherency unit
1034
Russell Kingf32f4ce2009-05-16 12:14:21 +01001035config HAVE_ARM_TWD
1036 bool
1037 depends on SMP
1038 help
1039 This options enables support for the ARM timer and watchdog unit
1040
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001041choice
1042 prompt "Memory split"
1043 default VMSPLIT_3G
1044 help
1045 Select the desired split between kernel and user memory.
1046
1047 If you are not absolutely sure what you are doing, leave this
1048 option alone!
1049
1050 config VMSPLIT_3G
1051 bool "3G/1G user/kernel split"
1052 config VMSPLIT_2G
1053 bool "2G/2G user/kernel split"
1054 config VMSPLIT_1G
1055 bool "1G/3G user/kernel split"
1056endchoice
1057
1058config PAGE_OFFSET
1059 hex
1060 default 0x40000000 if VMSPLIT_1G
1061 default 0x80000000 if VMSPLIT_2G
1062 default 0xC0000000
1063
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064config NR_CPUS
1065 int "Maximum number of CPUs (2-32)"
1066 range 2 32
1067 depends on SMP
1068 default "4"
1069
Russell Kinga054a812005-11-02 22:24:33 +00001070config HOTPLUG_CPU
1071 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1072 depends on SMP && HOTPLUG && EXPERIMENTAL
1073 help
1074 Say Y here to experiment with turning CPUs off and on. CPUs
1075 can be controlled through /sys/devices/system/cpu.
1076
Russell King37ee16a2005-11-08 19:08:05 +00001077config LOCAL_TIMERS
1078 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001079 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001080 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001081 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001082 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001083 help
1084 Enable support for local timers on SMP platforms, rather then the
1085 legacy IPI broadcast method. Local timers allows the system
1086 accounting to be spread across the timer interval, preventing a
1087 "thundering herd" at every timer tick.
1088
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001089source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090
Russell Kingf8065812006-03-02 22:41:59 +00001091config HZ
1092 int
1093 default 128 if ARCH_L7200
1094 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +00001095 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001096 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001097 default 100
1098
Catalin Marinas16c79652009-07-24 12:33:02 +01001099config THUMB2_KERNEL
1100 bool "Compile the kernel in Thumb-2 mode"
1101 depends on CPU_V7 && EXPERIMENTAL
1102 select AEABI
1103 select ARM_ASM_UNIFIED
1104 help
1105 By enabling this option, the kernel will be compiled in
1106 Thumb-2 mode. A compiler/assembler that understand the unified
1107 ARM-Thumb syntax is needed.
1108
1109 If unsure, say N.
1110
Catalin Marinas0becb082009-07-24 12:32:53 +01001111config ARM_ASM_UNIFIED
1112 bool
1113
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001114config AEABI
1115 bool "Use the ARM EABI to compile the kernel"
1116 help
1117 This option allows for the kernel to be compiled using the latest
1118 ARM ABI (aka EABI). This is only useful if you are using a user
1119 space environment that is also compiled with EABI.
1120
1121 Since there are major incompatibilities between the legacy ABI and
1122 EABI, especially with regard to structure member alignment, this
1123 option also changes the kernel syscall calling convention to
1124 disambiguate both ABIs and allow for backward compatibility support
1125 (selected with CONFIG_OABI_COMPAT).
1126
1127 To use this you need GCC version 4.0.0 or later.
1128
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001129config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001130 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001131 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001132 default y
1133 help
1134 This option preserves the old syscall interface along with the
1135 new (ARM EABI) one. It also provides a compatibility layer to
1136 intercept syscalls that have structure arguments which layout
1137 in memory differs between the legacy ABI and the new ARM EABI
1138 (only for non "thumb" binaries). This option adds a tiny
1139 overhead to all syscalls and produces a slightly larger kernel.
1140 If you know you'll be using only pure EABI user space then you
1141 can say N here. If this option is not selected and you attempt
1142 to execute a legacy ABI binary then the result will be
1143 UNPREDICTABLE (in fact it can be predicted that it won't work
1144 at all). If in doubt say Y.
1145
Mel Gormaneb335752009-05-13 17:34:48 +01001146config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001147 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001148
Russell King07a2f732008-10-01 21:39:58 +01001149# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001150config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001152
Russell King05944d72006-11-30 20:43:51 +00001153config ARCH_SPARSEMEM_ENABLE
1154 bool
1155
Russell King07a2f732008-10-01 21:39:58 +01001156config ARCH_SPARSEMEM_DEFAULT
1157 def_bool ARCH_SPARSEMEM_ENABLE
1158
Russell King05944d72006-11-30 20:43:51 +00001159config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001160 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001161
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001162config NODES_SHIFT
1163 int
1164 default "4" if ARCH_LH7A40X
1165 default "2"
1166 depends on NEED_MULTIPLE_NODES
1167
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001168config HIGHMEM
1169 bool "High Memory Support (EXPERIMENTAL)"
1170 depends on MMU && EXPERIMENTAL
1171 help
1172 The address space of ARM processors is only 4 Gigabytes large
1173 and it has to accommodate user address space, kernel address
1174 space as well as some memory mapped IO. That means that, if you
1175 have a large amount of physical memory and/or IO, not all of the
1176 memory can be "permanently mapped" by the kernel. The physical
1177 memory that is not permanently mapped is called "high memory".
1178
1179 Depending on the selected kernel/user memory split, minimum
1180 vmalloc space and actual amount of RAM, you may not need this
1181 option which should result in a slightly faster kernel.
1182
1183 If unsure, say n.
1184
Russell King65cec8e2009-08-17 20:02:06 +01001185config HIGHPTE
1186 bool "Allocate 2nd-level pagetables from highmem"
1187 depends on HIGHMEM
1188 depends on !OUTER_CACHE
1189
Dave Hansen3f22ab22005-06-23 00:07:43 -07001190source "mm/Kconfig"
1191
Linus Torvalds1da177e2005-04-16 15:20:36 -07001192config LEDS
1193 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001194 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001195 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1197 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001198 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001199 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001200 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001201 help
1202 If you say Y here, the LEDs on your machine will be used
1203 to provide useful information about your current system status.
1204
1205 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1206 be able to select which LEDs are active using the options below. If
1207 you are compiling a kernel for the EBSA-110 or the LART however, the
1208 red LED will simply flash regularly to indicate that the system is
1209 still functional. It is safe to say Y here if you have a CATS
1210 system, but the driver will do nothing.
1211
1212config LEDS_TIMER
1213 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001214 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1215 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001217 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001218 default y if ARCH_EBSA110
1219 help
1220 If you say Y here, one of the system LEDs (the green one on the
1221 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1222 will flash regularly to indicate that the system is still
1223 operational. This is mainly useful to kernel hackers who are
1224 debugging unstable kernels.
1225
1226 The LART uses the same LED for both Timer LED and CPU usage LED
1227 functions. You may choose to use both, but the Timer LED function
1228 will overrule the CPU usage LED.
1229
1230config LEDS_CPU
1231 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001232 !ARCH_OMAP) \
1233 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1234 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001235 depends on LEDS
1236 help
1237 If you say Y here, the red LED will be used to give a good real
1238 time indication of CPU usage, by lighting whenever the idle task
1239 is not currently executing.
1240
1241 The LART uses the same LED for both Timer LED and CPU usage LED
1242 functions. You may choose to use both, but the Timer LED function
1243 will overrule the CPU usage LED.
1244
1245config ALIGNMENT_TRAP
1246 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001247 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001249 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001251 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1253 address divisible by 4. On 32-bit ARM processors, these non-aligned
1254 fetch/store instructions will be emulated in software if you say
1255 here, which has a severe performance impact. This is necessary for
1256 correct operation of some network protocols. With an IP-only
1257 configuration it is safe to say N, otherwise say Y.
1258
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001259config UACCESS_WITH_MEMCPY
1260 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1261 depends on MMU && EXPERIMENTAL
1262 default y if CPU_FEROCEON
1263 help
1264 Implement faster copy_to_user and clear_user methods for CPU
1265 cores where a 8-word STM instruction give significantly higher
1266 memory write throughput than a sequence of individual 32bit stores.
1267
1268 A possible side effect is a slight increase in scheduling latency
1269 between threads sharing the same address space if they invoke
1270 such copy operations with large buffers.
1271
1272 However, if the CPU data cache is using a write-allocate mode,
1273 this option is unlikely to provide any performance gain.
1274
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275endmenu
1276
1277menu "Boot options"
1278
1279# Compressed boot loader in ROM. Yes, we really want to ask about
1280# TEXT and BSS so we preserve their values in the config files.
1281config ZBOOT_ROM_TEXT
1282 hex "Compressed ROM boot loader base address"
1283 default "0"
1284 help
1285 The physical address at which the ROM-able zImage is to be
1286 placed in the target. Platforms which normally make use of
1287 ROM-able zImage formats normally set this to a suitable
1288 value in their defconfig file.
1289
1290 If ZBOOT_ROM is not enabled, this has no effect.
1291
1292config ZBOOT_ROM_BSS
1293 hex "Compressed ROM boot loader BSS address"
1294 default "0"
1295 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001296 The base address of an area of read/write memory in the target
1297 for the ROM-able zImage which must be available while the
1298 decompressor is running. It must be large enough to hold the
1299 entire decompressed kernel plus an additional 128 KiB.
1300 Platforms which normally make use of ROM-able zImage formats
1301 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302
1303 If ZBOOT_ROM is not enabled, this has no effect.
1304
1305config ZBOOT_ROM
1306 bool "Compressed boot loader in ROM/flash"
1307 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1308 help
1309 Say Y here if you intend to execute your compressed kernel image
1310 (zImage) directly from ROM or flash. If unsure, say N.
1311
1312config CMDLINE
1313 string "Default kernel command string"
1314 default ""
1315 help
1316 On some architectures (EBSA110 and CATS), there is currently no way
1317 for the boot loader to pass arguments to the kernel. For these
1318 architectures, you should supply some command-line options at build
1319 time by entering them here. As a minimum, you should specify the
1320 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1321
1322config XIP_KERNEL
1323 bool "Kernel Execute-In-Place from ROM"
1324 depends on !ZBOOT_ROM
1325 help
1326 Execute-In-Place allows the kernel to run from non-volatile storage
1327 directly addressable by the CPU, such as NOR flash. This saves RAM
1328 space since the text section of the kernel is not loaded from flash
1329 to RAM. Read-write sections, such as the data section and stack,
1330 are still copied to RAM. The XIP kernel is not compressed since
1331 it has to run directly from flash, so it will take more space to
1332 store it. The flash address used to link the kernel object files,
1333 and for storing it, is configuration dependent. Therefore, if you
1334 say Y here, you must know the proper physical address where to
1335 store the kernel image depending on your own flash memory usage.
1336
1337 Also note that the make target becomes "make xipImage" rather than
1338 "make zImage" or "make Image". The final kernel binary to put in
1339 ROM memory will be arch/arm/boot/xipImage.
1340
1341 If unsure, say N.
1342
1343config XIP_PHYS_ADDR
1344 hex "XIP Kernel Physical Location"
1345 depends on XIP_KERNEL
1346 default "0x00080000"
1347 help
1348 This is the physical address in your flash memory the kernel will
1349 be linked for and stored to. This address is dependent on your
1350 own flash usage.
1351
Richard Purdiec587e4a2007-02-06 21:29:00 +01001352config KEXEC
1353 bool "Kexec system call (EXPERIMENTAL)"
1354 depends on EXPERIMENTAL
1355 help
1356 kexec is a system call that implements the ability to shutdown your
1357 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001358 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001359 you can start any kernel with it, not just Linux.
1360
1361 It is an ongoing process to be certain the hardware in a machine
1362 is properly shutdown, so do not be surprised if this code does not
1363 initially work for you. It may help to enable device hotplugging
1364 support.
1365
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001366config ATAGS_PROC
1367 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001368 depends on KEXEC
1369 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001370 help
1371 Should the atags used to boot the kernel be exported in an "atags"
1372 file in procfs. Useful with kexec.
1373
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374endmenu
1375
Russell Kingac9d7ef2008-08-18 17:26:00 +01001376menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377
Ben Dooks89c52ed2009-07-30 23:23:24 +01001378if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379
1380source "drivers/cpufreq/Kconfig"
1381
1382config CPU_FREQ_SA1100
1383 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384
1385config CPU_FREQ_SA1110
1386 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387
1388config CPU_FREQ_INTEGRATOR
1389 tristate "CPUfreq driver for ARM Integrator CPUs"
1390 depends on ARCH_INTEGRATOR && CPU_FREQ
1391 default y
1392 help
1393 This enables the CPUfreq driver for ARM Integrator CPUs.
1394
1395 For details, take a look at <file:Documentation/cpu-freq>.
1396
1397 If in doubt, say Y.
1398
Russell King9e2697f2007-12-14 13:30:14 +00001399config CPU_FREQ_PXA
1400 bool
1401 depends on CPU_FREQ && ARCH_PXA && PXA25x
1402 default y
1403 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1404
Mark Brownb3748dd2009-06-15 11:23:20 +01001405config CPU_FREQ_S3C64XX
1406 bool "CPUfreq support for Samsung S3C64XX CPUs"
1407 depends on CPU_FREQ && CPU_S3C6410
1408
Ben Dooks9d56c022009-07-30 23:23:25 +01001409config CPU_FREQ_S3C
1410 bool
1411 help
1412 Internal configuration node for common cpufreq on Samsung SoC
1413
1414config CPU_FREQ_S3C24XX
1415 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1416 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1417 select CPU_FREQ_S3C
1418 help
1419 This enables the CPUfreq driver for the Samsung S3C24XX family
1420 of CPUs.
1421
1422 For details, take a look at <file:Documentation/cpu-freq>.
1423
1424 If in doubt, say N.
1425
1426config CPU_FREQ_S3C24XX_PLL
1427 bool "Support CPUfreq changing of PLL frequency"
1428 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1429 help
1430 Compile in support for changing the PLL frequency from the
1431 S3C24XX series CPUfreq driver. The PLL takes time to settle
1432 after a frequency change, so by default it is not enabled.
1433
1434 This also means that the PLL tables for the selected CPU(s) will
1435 be built which may increase the size of the kernel image.
1436
1437config CPU_FREQ_S3C24XX_DEBUG
1438 bool "Debug CPUfreq Samsung driver core"
1439 depends on CPU_FREQ_S3C24XX
1440 help
1441 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1442
1443config CPU_FREQ_S3C24XX_IODEBUG
1444 bool "Debug CPUfreq Samsung driver IO timing"
1445 depends on CPU_FREQ_S3C24XX
1446 help
1447 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1448
Ben Dookse6d197a2009-07-30 23:23:42 +01001449config CPU_FREQ_S3C24XX_DEBUGFS
1450 bool "Export debugfs for CPUFreq"
1451 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1452 help
1453 Export status information via debugfs.
1454
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455endif
1456
Russell Kingac9d7ef2008-08-18 17:26:00 +01001457source "drivers/cpuidle/Kconfig"
1458
1459endmenu
1460
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461menu "Floating point emulation"
1462
1463comment "At least one emulation must be selected"
1464
1465config FPE_NWFPE
1466 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001467 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001468 ---help---
1469 Say Y to include the NWFPE floating point emulator in the kernel.
1470 This is necessary to run most binaries. Linux does not currently
1471 support floating point hardware so you need to say Y here even if
1472 your machine has an FPA or floating point co-processor podule.
1473
1474 You may say N here if you are going to load the Acorn FPEmulator
1475 early in the bootup.
1476
1477config FPE_NWFPE_XP
1478 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001479 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480 help
1481 Say Y to include 80-bit support in the kernel floating-point
1482 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1483 Note that gcc does not generate 80-bit operations by default,
1484 so in most cases this option only enlarges the size of the
1485 floating point emulator without any good reason.
1486
1487 You almost surely want to say N here.
1488
1489config FPE_FASTFPE
1490 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001491 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001492 ---help---
1493 Say Y here to include the FAST floating point emulator in the kernel.
1494 This is an experimental much faster emulator which now also has full
1495 precision for the mantissa. It does not support any exceptions.
1496 It is very simple, and approximately 3-6 times faster than NWFPE.
1497
1498 It should be sufficient for most programs. It may be not suitable
1499 for scientific calculations, but you have to check this for yourself.
1500 If you do not feel you need a faster FP emulation you should better
1501 choose NWFPE.
1502
1503config VFP
1504 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001505 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001506 help
1507 Say Y to include VFP support code in the kernel. This is needed
1508 if your hardware includes a VFP unit.
1509
1510 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1511 release notes and additional status information.
1512
1513 Say N if your target does not have VFP hardware.
1514
Catalin Marinas25ebee02007-09-25 15:22:24 +01001515config VFPv3
1516 bool
1517 depends on VFP
1518 default y if CPU_V7
1519
Catalin Marinasb5872db2008-01-10 19:16:17 +01001520config NEON
1521 bool "Advanced SIMD (NEON) Extension support"
1522 depends on VFPv3 && CPU_V7
1523 help
1524 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1525 Extension.
1526
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527endmenu
1528
1529menu "Userspace binary formats"
1530
1531source "fs/Kconfig.binfmt"
1532
1533config ARTHUR
1534 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001535 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001536 help
1537 Say Y here to include the kernel code necessary if you want to run
1538 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1539 experimental; if this sounds frightening, say N and sleep in peace.
1540 You can also say M here to compile this support as a module (which
1541 will be called arthur).
1542
1543endmenu
1544
1545menu "Power management options"
1546
Russell Kingeceab4a2005-11-15 11:31:41 +00001547source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001548
Johannes Bergf4cb5702007-12-08 02:14:00 +01001549config ARCH_SUSPEND_POSSIBLE
1550 def_bool y
1551
Linus Torvalds1da177e2005-04-16 15:20:36 -07001552endmenu
1553
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001554source "net/Kconfig"
1555
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001556source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557
1558source "fs/Kconfig"
1559
Linus Torvalds1da177e2005-04-16 15:20:36 -07001560source "arch/arm/Kconfig.debug"
1561
1562source "security/Kconfig"
1563
1564source "crypto/Kconfig"
1565
1566source "lib/Kconfig"