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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
Russell King2778f622010-07-09 16:27:52 +010013 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -080014 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000015 select SYS_SUPPORTS_APM_EMULATION
Will Deacon24b44a62010-01-20 19:05:07 +010016 select GENERIC_ATOMIC64 if (!CPU_32v6K)
Will Deaconfe166142010-04-30 11:37:51 +010017 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060018 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050019 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080020 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040021 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040022 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080023 select HAVE_KERNEL_GZIP
24 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010025 select HAVE_KERNEL_LZMA
Jamie Iles7ada1892010-02-02 20:24:58 +010026 select HAVE_PERF_EVENTS
27 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010028 select HAVE_REGS_AND_STACK_ACCESS_API
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 help
30 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000031 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000033 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 Europe. There is an ARM Linux project with a web page at
35 <http://www.arm.linux.org.uk/>.
36
Russell King1a189b92008-04-13 21:41:55 +010037config HAVE_PWM
38 bool
39
Ralf Baechle75e71532007-02-09 17:08:58 +000040config SYS_SUPPORTS_APM_EMULATION
41 bool
42
David Brownell0a938b92007-03-05 00:30:18 -080043config GENERIC_GPIO
44 bool
David Brownell0a938b92007-03-05 00:30:18 -080045
John Stultz5cfc8ee2010-03-24 00:22:36 +000046config ARCH_USES_GETTIMEOFFSET
47 bool
48 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010049
Kevin Hilman0567a0c2007-03-13 20:29:24 +010050config GENERIC_CLOCKEVENTS
51 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010052
Catalin Marinasa8655e82008-02-04 17:30:57 +010053config GENERIC_CLOCKEVENTS_BROADCAST
54 bool
55 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010056 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010057
Linus Walleijbc581772009-09-15 17:30:37 +010058config HAVE_TCM
59 bool
60 select GENERIC_ALLOCATOR
61
Russell Kinge119bff2010-01-10 17:23:29 +000062config HAVE_PROC_CPU
63 bool
64
Al Viro5ea81762007-02-11 15:41:31 +000065config NO_IOPORT
66 bool
Al Viro5ea81762007-02-11 15:41:31 +000067
Linus Torvalds1da177e2005-04-16 15:20:36 -070068config EISA
69 bool
70 ---help---
71 The Extended Industry Standard Architecture (EISA) bus was
72 developed as an open alternative to the IBM MicroChannel bus.
73
74 The EISA bus provided some of the features of the IBM MicroChannel
75 bus while maintaining backward compatibility with cards made for
76 the older ISA bus. The EISA bus saw limited use between 1988 and
77 1995 when it was made obsolete by the PCI bus.
78
79 Say Y here if you are building a kernel for an EISA-based machine.
80
81 Otherwise, say N.
82
83config SBUS
84 bool
85
86config MCA
87 bool
88 help
89 MicroChannel Architecture is found in some IBM PS/2 machines and
90 laptops. It is a bus system similar to PCI or ISA. See
91 <file:Documentation/mca.txt> (and especially the web page given
92 there) before attempting to build an MCA bus kernel.
93
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010094config GENERIC_HARDIRQS
95 bool
96 default y
97
Russell Kingf16fb1e2007-04-28 09:59:37 +010098config STACKTRACE_SUPPORT
99 bool
100 default y
101
Nicolas Pitref76e9152008-04-24 01:31:46 -0400102config HAVE_LATENCYTOP_SUPPORT
103 bool
104 depends on !SMP
105 default y
106
Russell Kingf16fb1e2007-04-28 09:59:37 +0100107config LOCKDEP_SUPPORT
108 bool
109 default y
110
Russell King7ad1bcb2006-08-27 12:07:02 +0100111config TRACE_IRQFLAGS_SUPPORT
112 bool
113 default y
114
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100115config HARDIRQS_SW_RESEND
116 bool
117 default y
118
119config GENERIC_IRQ_PROBE
120 bool
121 default y
122
Nick Piggin95c354f2008-01-30 13:31:20 +0100123config GENERIC_LOCKBREAK
124 bool
125 default y
126 depends on SMP && PREEMPT
127
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128config RWSEM_GENERIC_SPINLOCK
129 bool
130 default y
131
132config RWSEM_XCHGADD_ALGORITHM
133 bool
134
David Howellsf0d1b0b2006-12-08 02:37:49 -0800135config ARCH_HAS_ILOG2_U32
136 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800137
138config ARCH_HAS_ILOG2_U64
139 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800140
Ben Dooks89c52ed2009-07-30 23:23:24 +0100141config ARCH_HAS_CPUFREQ
142 bool
143 help
144 Internal node to signify that the ARCH has CPUFREQ support
145 and that the relevant menu configurations are displayed for
146 it.
147
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800148config GENERIC_HWEIGHT
149 bool
150 default y
151
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152config GENERIC_CALIBRATE_DELAY
153 bool
154 default y
155
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100156config ARCH_MAY_HAVE_PC_FDC
157 bool
158
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800159config ZONE_DMA
160 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800161
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800162config NEED_DMA_MAP_STATE
163 def_bool y
164
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165config GENERIC_ISA_DMA
166 bool
167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168config FIQ
169 bool
170
Al Viro034d2f52005-12-19 16:27:59 -0500171config ARCH_MTD_XIP
172 bool
173
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100174config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100175 def_bool y
176
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100177config ARM_L1_CACHE_SHIFT_6
178 bool
179 help
180 Setting ARM L1 cache line size to 64 Bytes.
181
Hyok S. Choic760fc12006-03-27 15:18:50 +0100182config VECTORS_BASE
183 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900184 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100185 default DRAM_BASE if REMAP_VECTORS_TO_RAM
186 default 0x00000000
187 help
188 The base address of exception vectors.
189
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190source "init/Kconfig"
191
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700192source "kernel/Kconfig.freezer"
193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194menu "System Type"
195
Hyok S. Choi3c427972009-07-24 12:35:00 +0100196config MMU
197 bool "MMU-based Paged Memory Management Support"
198 default y
199 help
200 Select if you want MMU-based virtualised addressing space
201 support by paged memory management. If unsure, say 'Y'.
202
Russell Kingccf50e22010-03-15 19:03:06 +0000203#
204# The "ARM system type" choice list is ordered alphabetically by option
205# text. Please add new entries in the option alphabetic order.
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
John Stultz5cfc8ee2010-03-24 00:22:36 +0000216 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100217 help
218 This enables support for systems based on the Agilent AAEC-2000
219
220config ARCH_INTEGRATOR
221 bool "ARM Ltd. Integrator family"
222 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100223 select ARCH_HAS_CPUFREQ
Russell Kingd72fbdf2008-11-08 20:08:08 +0000224 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000225 select ICST
Russell King13edd862010-01-15 21:49:23 +0000226 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000227 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100228 help
229 Support for ARM's Integrator platform.
230
231config ARCH_REALVIEW
232 bool "ARM Ltd. RealView family"
233 select ARM_AMBA
Russell Kingcf30fb42008-11-08 20:05:55 +0000234 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000235 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100236 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100237 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000238 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000239 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100240 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100241 help
242 This enables support for ARM Ltd RealView boards.
243
244config ARCH_VERSATILE
245 bool "ARM Ltd. Versatile family"
246 select ARM_AMBA
247 select ARM_VIC
Russell King71a06da2008-11-08 20:13:53 +0000248 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000249 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100250 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100251 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000252 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000253 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100254 help
255 This enables support for ARM Ltd Versatile board.
256
Russell Kingceade892010-02-11 21:44:53 +0000257config ARCH_VEXPRESS
258 bool "ARM Ltd. Versatile Express family"
259 select ARCH_WANT_OPTIONAL_GPIOLIB
260 select ARM_AMBA
261 select ARM_TIMER_SP804
262 select COMMON_CLKDEV
263 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000264 select HAVE_CLK
265 select ICST
266 select PLAT_VERSATILE
267 help
268 This enables support for the ARM Ltd Versatile Express boards.
269
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100270config ARCH_AT91
271 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100272 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700273 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000274 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100275 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100276 This enables support for systems based on the Atmel AT91RM9200,
277 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100278
Russell Kingccf50e22010-03-15 19:03:06 +0000279config ARCH_BCMRING
280 bool "Broadcom BCMRING"
281 depends on MMU
282 select CPU_V6
283 select ARM_AMBA
284 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000285 select GENERIC_CLOCKEVENTS
286 select ARCH_WANT_OPTIONAL_GPIOLIB
287 help
288 Support for Broadcom's BCMRing platform.
289
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100291 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000292 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000293 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000294 help
295 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300297config ARCH_CNS3XXX
298 bool "Cavium Networks CNS3XXX family"
299 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300300 select GENERIC_CLOCKEVENTS
301 select ARM_GIC
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400302 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300303 help
304 Support for Cavium Networks CNS3XXX platform.
305
Russell King788c9702009-04-26 14:21:59 +0100306config ARCH_GEMINI
307 bool "Cortina Systems Gemini"
308 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100309 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000310 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100311 help
312 Support for the Cortina Systems Gemini family SoCs
313
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314config ARCH_EBSA110
315 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000316 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100317 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000318 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000319 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 help
321 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000322 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 Ethernet interface, two PCMCIA sockets, two serial ports and a
324 parallel port.
325
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000326config ARCH_EP93XX
327 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000328 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000329 select ARM_AMBA
330 select ARM_VIC
Russell Kingae696fd2008-11-30 17:11:49 +0000331 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700332 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100333 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000334 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000335 help
336 This enables support for the Cirrus EP93xx series of CPUs.
337
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338config ARCH_FOOTBRIDGE
339 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000340 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000342 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000343 help
344 Support for systems based on the DC21285 companion chip
345 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346
Russell King788c9702009-04-26 14:21:59 +0100347config ARCH_MXC
348 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100349 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100350 select ARCH_REQUIRE_GPIOLIB
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100351 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100352 help
353 Support for Freescale MXC/iMX-based family of processors
354
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100355config ARCH_STMP3XXX
356 bool "Freescale STMP3xxx"
357 select CPU_ARM926T
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100358 select COMMON_CLKDEV
359 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100360 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100361 select USB_ARCH_HAS_EHCI
362 help
363 Support for systems based on the Freescale 3xxx CPUs.
364
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100365config ARCH_NETX
366 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000367 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100368 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100369 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000370 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100371 This enables support for systems based on the Hilscher NetX Soc
372
373config ARCH_H720X
374 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000375 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100376 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000377 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100378 help
379 This enables support for systems based on the Hynix HMS720x
380
Russell King3b938be2007-05-12 11:25:44 +0100381config ARCH_IOP13XX
382 bool "IOP13xx-based"
383 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000384 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100385 select PLAT_IOP
386 select PCI
387 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100388 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100389 help
390 Support for Intel's IOP13XX (XScale) family of processors.
391
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100392config ARCH_IOP32X
393 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100394 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000395 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100396 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100397 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100398 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000399 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100400 Support for Intel's 80219 and IOP32X (XScale) family of
401 processors.
402
403config ARCH_IOP33X
404 bool "IOP33x-based"
405 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000406 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100407 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100408 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100409 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100410 help
411 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412
Russell King3b938be2007-05-12 11:25:44 +0100413config ARCH_IXP23XX
414 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100415 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000416 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100417 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000418 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100419 help
Russell King3b938be2007-05-12 11:25:44 +0100420 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421
422config ARCH_IXP2000
423 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100424 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000425 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100426 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000427 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000428 help
429 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430
Russell King3b938be2007-05-12 11:25:44 +0100431config ARCH_IXP4XX
432 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100433 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000434 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100435 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100436 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100437 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100438 help
Russell King3b938be2007-05-12 11:25:44 +0100439 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100440
Saeed Bisharaedabd382009-08-06 15:12:43 +0300441config ARCH_DOVE
442 bool "Marvell Dove"
443 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300444 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300445 select GENERIC_CLOCKEVENTS
446 select PLAT_ORION
447 help
448 Support for the Marvell Dove SoC 88AP510
449
Saeed Bishara651c74c2008-06-22 22:45:06 +0200450config ARCH_KIRKWOOD
451 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000452 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200453 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700454 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200455 select GENERIC_CLOCKEVENTS
456 select PLAT_ORION
457 help
458 Support for the following Marvell Kirkwood series SoCs:
459 88F6180, 88F6192 and 88F6281.
460
Russell King788c9702009-04-26 14:21:59 +0100461config ARCH_LOKI
462 bool "Marvell Loki (88RC8480)"
463 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100464 select GENERIC_CLOCKEVENTS
465 select PLAT_ORION
466 help
467 Support for the Marvell Loki (88RC8480) SoC.
468
Kevin Wells40805942010-07-27 08:49:04 -0700469config ARCH_LPC32XX
470 bool "NXP LPC32XX"
471 select CPU_ARM926T
472 select ARCH_REQUIRE_GPIOLIB
473 select HAVE_IDE
474 select ARM_AMBA
475 select USB_ARCH_HAS_OHCI
476 select COMMON_CLKDEV
477 select GENERIC_TIME
478 select GENERIC_CLOCKEVENTS
479 help
480 Support for the NXP LPC32XX family of processors
481
Russell King788c9702009-04-26 14:21:59 +0100482config ARCH_MV78XX0
483 bool "Marvell MV78xx0"
484 select CPU_FEROCEON
485 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700486 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100487 select GENERIC_CLOCKEVENTS
488 select PLAT_ORION
489 help
490 Support for the following Marvell MV78xx0 series SoCs:
491 MV781x0, MV782x0.
492
493config ARCH_ORION5X
494 bool "Marvell Orion"
495 depends on MMU
496 select CPU_FEROCEON
497 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700498 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100499 select GENERIC_CLOCKEVENTS
500 select PLAT_ORION
501 help
502 Support for the following Marvell Orion 5x series SoCs:
503 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
504 Orion-2 (5281), Orion-1-90 (6183).
505
506config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500507 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100508 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100509 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100510 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100511 select GENERIC_CLOCKEVENTS
512 select TICK_ONESHOT
513 select PLAT_PXA
514 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500515 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100516
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
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100520 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000521 select ARCH_USES_GETTIMEOFFSET
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-Königc0bb87f2007-09-30 20:36:00 +0100530 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700531 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100532 help
533 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
534 System.
535
536 <http://www.digi.com/products/microprocessors/index.jsp>
537
Russell King788c9702009-04-26 14:21:59 +0100538config ARCH_W90X900
539 bool "Nuvoton W90X900 CPU"
540 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100541 select ARCH_REQUIRE_GPIOLIB
wanzongshun0e4a34b2009-06-10 15:50:44 +0100542 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100543 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
wanzongshuna62e9032009-12-31 15:06:05 +0100553config ARCH_NUC93X
554 bool "Nuvoton NUC93X CPU"
555 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100556 select COMMON_CLKDEV
557 help
558 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
559 low-power and high performance MPEG-4/JPEG multimedia controller chip.
560
Erik Gillingc5f80062010-01-21 16:53:02 -0800561config ARCH_TEGRA
562 bool "NVIDIA Tegra"
563 select GENERIC_TIME
564 select GENERIC_CLOCKEVENTS
565 select GENERIC_GPIO
566 select HAVE_CLK
Colin Crossd8611962010-01-28 16:40:29 -0800567 select COMMON_CLKDEV
Erik Gillingc5f80062010-01-21 16:53:02 -0800568 select ARCH_HAS_BARRIERS if CACHE_L2X0
569 help
570 This enables support for NVIDIA Tegra based systems (Tegra APX,
571 Tegra 6xx and Tegra 2 series).
572
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100573config ARCH_PNX4008
574 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000575 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000576 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000577 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100578 help
579 This enables support for Philips PNX4008 mobile platform.
580
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700582 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100583 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500584 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100585 select ARCH_HAS_CPUFREQ
Russell King8c3abc72008-11-08 20:25:21 +0000586 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700587 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100588 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000589 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800590 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000591 help
eric miao2c8086a2007-09-11 19:13:17 -0700592 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593
Russell King788c9702009-04-26 14:21:59 +0100594config ARCH_MSM
595 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500596 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800597 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700598 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800599 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800600 Support for Qualcomm MSM/QSD based systems. This runs on the
601 apps processor of the MSM/QSD and depends on a shared memory
602 interface to the modem processor which runs the baseband
603 stack and controls some vital subsystems
604 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800605
Magnus Dammc793c1b2010-02-05 11:14:49 +0000606config ARCH_SHMOBILE
607 bool "Renesas SH-Mobile"
608 help
609 Support for Renesas's SH-Mobile ARM platforms
610
Linus Torvalds1da177e2005-04-16 15:20:36 -0700611config ARCH_RPC
612 bool "RiscPC"
613 select ARCH_ACORN
614 select FIQ
615 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100616 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100617 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000618 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000619 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100620 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000621 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622 help
623 On the Acorn Risc-PC, Linux can support the internal IDE disk and
624 CD-ROM interface, serial and parallel port, and the floppy drive.
625
626config ARCH_SA1100
627 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000628 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100629 select ISA
Russell King05944d72006-11-30 20:43:51 +0000630 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500631 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100632 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000633 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100634 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700635 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100636 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700637 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000638 help
639 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640
641config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900642 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800643 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100644 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700645 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000646 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647 help
648 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
649 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000650 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651
Ben Dooks63b1f512010-04-30 16:32:26 +0900652 Note, the S3C2416 and the S3C2450 are so close that they even share
653 the same SoC ID code. This means that there is no seperate machine
654 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
655
Ben Dooksa08ab632008-10-21 14:06:39 +0100656config ARCH_S3C64XX
657 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000658 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900659 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900660 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100661 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900662 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000663 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100664 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900665 select ARCH_REQUIRE_GPIOLIB
666 select SAMSUNG_CLKSRC
667 select SAMSUNG_IRQ_VIC_TIMER
668 select SAMSUNG_IRQ_UART
669 select S3C_GPIO_TRACK
670 select S3C_GPIO_PULL_UPDOWN
671 select S3C_GPIO_CFG_S3C24XX
672 select S3C_GPIO_CFG_S3C64XX
673 select S3C_DEV_NAND
674 select USB_ARCH_HAS_OHCI
675 select SAMSUNG_GPIOLIB_4BIT
Ben Dooksa08ab632008-10-21 14:06:39 +0100676 help
677 Samsung S3C64XX series based systems
678
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900679config ARCH_S5P6440
680 bool "Samsung S5P6440"
681 select CPU_V6
682 select GENERIC_GPIO
683 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900684 select ARCH_USES_GETTIMEOFFSET
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900685 help
686 Samsung S5P6440 CPU based systems
687
Kukjin Kim550db7f2010-01-29 10:19:26 +0900688config ARCH_S5P6442
689 bool "Samsung S5P6442"
690 select CPU_V6
691 select GENERIC_GPIO
692 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900693 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim550db7f2010-01-29 10:19:26 +0900694 help
695 Samsung S5P6442 CPU based systems
696
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200697config ARCH_S5PC100
698 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900699 select GENERIC_GPIO
700 select HAVE_CLK
701 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100702 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900703 select ARCH_USES_GETTIMEOFFSET
Byungho Min5a7652f2009-06-23 21:39:42 +0900704 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200705 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900706
Kukjin Kim170f4e42010-02-24 16:40:44 +0900707config ARCH_S5PV210
708 bool "Samsung S5PV210/S5PC110"
709 select CPU_V7
710 select GENERIC_GPIO
711 select HAVE_CLK
712 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900713 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim170f4e42010-02-24 16:40:44 +0900714 help
715 Samsung S5PV210/S5PC110 series based systems
716
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717config ARCH_SHARK
718 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000719 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100720 select ISA
721 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100722 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100723 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000724 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000725 help
726 Support for the StrongARM based Digital DNARD machine, also known
727 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728
729config ARCH_LH7A40X
730 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000731 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100732 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000733 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700734 help
735 Say Y here for systems based on one of the Sharp LH7A40X
736 System on a Chip processors. These CPUs include an ARM922T
737 core with a wide array of integrated devices for
738 hand-held and low-power applications.
739
Linus Walleijd98aac72009-04-27 10:21:46 +0100740config ARCH_U300
741 bool "ST-Ericsson U300 Series"
742 depends on MMU
743 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100744 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100745 select ARM_AMBA
746 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100747 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100748 select COMMON_CLKDEV
749 select GENERIC_GPIO
750 help
751 Support for ST-Ericsson U300 series mobile platforms.
752
Russell Kingccf50e22010-03-15 19:03:06 +0000753config ARCH_U8500
754 bool "ST-Ericsson U8500 Series"
755 select CPU_V7
756 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000757 select GENERIC_CLOCKEVENTS
758 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100759 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000760 help
761 Support for ST-Ericsson's Ux500 architecture
762
763config ARCH_NOMADIK
764 bool "STMicroelectronics Nomadik"
765 select ARM_AMBA
766 select ARM_VIC
767 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000768 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000769 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000770 select ARCH_REQUIRE_GPIOLIB
771 help
772 Support for the Nomadik platform by ST-Ericsson
773
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100774config ARCH_DAVINCI
775 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100776 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700777 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100778 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700779 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700780 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700781 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530782 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100783 help
784 Support for TI's DaVinci platform.
785
Russell King3b938be2007-05-12 11:25:44 +0100786config ARCH_OMAP
787 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700788 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700789 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100790 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700791 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800792 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100793 help
794 Support for TI's OMAP platform (OMAP1 and OMAP2).
795
viresh kumarcee37e52010-04-01 12:31:05 +0100796config PLAT_SPEAR
797 bool "ST SPEAr"
798 select ARM_AMBA
799 select ARCH_REQUIRE_GPIOLIB
800 select COMMON_CLKDEV
801 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100802 select HAVE_CLK
803 help
804 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
805
Linus Torvalds1da177e2005-04-16 15:20:36 -0700806endchoice
807
Russell Kingccf50e22010-03-15 19:03:06 +0000808#
809# This is sorted alphabetically by mach-* pathname. However, plat-*
810# Kconfigs may be included either alphabetically (according to the
811# plat- suffix) or along side the corresponding mach-* source.
812#
Russell King95b8f202010-01-14 11:43:54 +0000813source "arch/arm/mach-aaec2000/Kconfig"
814
815source "arch/arm/mach-at91/Kconfig"
816
817source "arch/arm/mach-bcmring/Kconfig"
818
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819source "arch/arm/mach-clps711x/Kconfig"
820
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300821source "arch/arm/mach-cns3xxx/Kconfig"
822
Russell King95b8f202010-01-14 11:43:54 +0000823source "arch/arm/mach-davinci/Kconfig"
824
825source "arch/arm/mach-dove/Kconfig"
826
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000827source "arch/arm/mach-ep93xx/Kconfig"
828
Linus Torvalds1da177e2005-04-16 15:20:36 -0700829source "arch/arm/mach-footbridge/Kconfig"
830
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200831source "arch/arm/mach-gemini/Kconfig"
832
Russell King95b8f202010-01-14 11:43:54 +0000833source "arch/arm/mach-h720x/Kconfig"
834
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835source "arch/arm/mach-integrator/Kconfig"
836
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100837source "arch/arm/mach-iop32x/Kconfig"
838
839source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840
Dan Williams285f5fa2006-12-07 02:59:39 +0100841source "arch/arm/mach-iop13xx/Kconfig"
842
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843source "arch/arm/mach-ixp4xx/Kconfig"
844
845source "arch/arm/mach-ixp2000/Kconfig"
846
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100847source "arch/arm/mach-ixp23xx/Kconfig"
848
Russell King95b8f202010-01-14 11:43:54 +0000849source "arch/arm/mach-kirkwood/Kconfig"
850
851source "arch/arm/mach-ks8695/Kconfig"
852
853source "arch/arm/mach-lh7a40x/Kconfig"
854
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200855source "arch/arm/mach-loki/Kconfig"
856
Kevin Wells40805942010-07-27 08:49:04 -0700857source "arch/arm/mach-lpc32xx/Kconfig"
858
Russell King95b8f202010-01-14 11:43:54 +0000859source "arch/arm/mach-msm/Kconfig"
860
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200861source "arch/arm/mach-mv78xx0/Kconfig"
862
Russell King95b8f202010-01-14 11:43:54 +0000863source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864
Russell King95b8f202010-01-14 11:43:54 +0000865source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800866
Russell King95b8f202010-01-14 11:43:54 +0000867source "arch/arm/mach-nomadik/Kconfig"
868source "arch/arm/plat-nomadik/Kconfig"
869
870source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871
Russell Kingd91a89102010-02-04 18:13:17 +0000872source "arch/arm/mach-nuc93x/Kconfig"
873
Tony Lindgrend48af152005-07-10 19:58:17 +0100874source "arch/arm/plat-omap/Kconfig"
875
876source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877
Tony Lindgren1dbae812005-11-10 14:26:51 +0000878source "arch/arm/mach-omap2/Kconfig"
879
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400880source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400881
Russell King95b8f202010-01-14 11:43:54 +0000882source "arch/arm/mach-pxa/Kconfig"
883source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884
Russell King95b8f202010-01-14 11:43:54 +0000885source "arch/arm/mach-mmp/Kconfig"
886
887source "arch/arm/mach-realview/Kconfig"
888
889source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300890
Ben Dookscf383672009-11-10 00:14:58 +0000891source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100892source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900893source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100894
viresh kumarcee37e52010-04-01 12:31:05 +0100895source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100896
897if ARCH_S3C2410
898source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100900source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900901source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100902source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100903source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100904endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905
Ben Dooksa08ab632008-10-21 14:06:39 +0100906if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900907source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100908endif
909
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900910source "arch/arm/mach-s5p6440/Kconfig"
911
Kukjin Kim550db7f2010-01-29 10:19:26 +0900912source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100913
Byungho Min5a7652f2009-06-23 21:39:42 +0900914source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900915
Kukjin Kim170f4e42010-02-24 16:40:44 +0900916source "arch/arm/mach-s5pv210/Kconfig"
917
Russell King882d01f2010-03-02 23:40:15 +0000918source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919
Russell King882d01f2010-03-02 23:40:15 +0000920source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800921
Erik Gillingc5f80062010-01-21 16:53:02 -0800922source "arch/arm/mach-tegra/Kconfig"
923
Russell King95b8f202010-01-14 11:43:54 +0000924source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100925
Russell King95b8f202010-01-14 11:43:54 +0000926source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927
928source "arch/arm/mach-versatile/Kconfig"
929
Russell Kingceade892010-02-11 21:44:53 +0000930source "arch/arm/mach-vexpress/Kconfig"
931
wanzongshun7ec80dd2008-12-03 03:55:38 +0100932source "arch/arm/mach-w90x900/Kconfig"
933
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934# Definitions to make life easier
935config ARCH_ACORN
936 bool
937
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100938config PLAT_IOP
939 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700940 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100941
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400942config PLAT_ORION
943 bool
944
Eric Miaobd5ce432009-01-20 12:06:01 +0800945config PLAT_PXA
946 bool
947
Russell Kingf4b8b312010-01-14 12:48:06 +0000948config PLAT_VERSATILE
949 bool
950
Russell Kinge3887712010-01-14 13:30:16 +0000951config ARM_TIMER_SP804
952 bool
953
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954source arch/arm/mm/Kconfig
955
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100956config IWMMXT
957 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800958 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
959 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100960 help
961 Enable support for iWMMXt context switching at run time if
962 running on a CPU that supports it.
963
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
965config XSCALE_PMU
966 bool
967 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
968 default y
969
Jamie Iles0f4f0672010-02-02 20:23:15 +0100970config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +0100971 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
972 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +0100973 default y
974 bool
975
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100976if !MMU
977source "arch/arm/Kconfig-nommu"
978endif
979
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100980config ARM_ERRATA_411920
981 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
982 depends on CPU_V6 && !SMP
983 help
984 Invalidation of the Instruction Cache operation can
985 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
986 It does not affect the MPCore. This option enables the ARM Ltd.
987 recommended workaround.
988
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100989config ARM_ERRATA_430973
990 bool "ARM errata: Stale prediction on replaced interworking branch"
991 depends on CPU_V7
992 help
993 This option enables the workaround for the 430973 Cortex-A8
994 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
995 interworking branch is replaced with another code sequence at the
996 same virtual address, whether due to self-modifying code or virtual
997 to physical address re-mapping, Cortex-A8 does not recover from the
998 stale interworking branch prediction. This results in Cortex-A8
999 executing the new code sequence in the incorrect ARM or Thumb state.
1000 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1001 and also flushes the branch target cache at every context switch.
1002 Note that setting specific bits in the ACTLR register may not be
1003 available in non-secure mode.
1004
Catalin Marinas855c5512009-04-30 17:06:15 +01001005config ARM_ERRATA_458693
1006 bool "ARM errata: Processor deadlock when a false hazard is created"
1007 depends on CPU_V7
1008 help
1009 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1010 erratum. For very specific sequences of memory operations, it is
1011 possible for a hazard condition intended for a cache line to instead
1012 be incorrectly associated with a different cache line. This false
1013 hazard might then cause a processor deadlock. The workaround enables
1014 the L1 caching of the NEON accesses and disables the PLD instruction
1015 in the ACTLR register. Note that setting specific bits in the ACTLR
1016 register may not be available in non-secure mode.
1017
Catalin Marinas0516e462009-04-30 17:06:20 +01001018config ARM_ERRATA_460075
1019 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1020 depends on CPU_V7
1021 help
1022 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1023 erratum. Any asynchronous access to the L2 cache may encounter a
1024 situation in which recent store transactions to the L2 cache are lost
1025 and overwritten with stale memory contents from external memory. The
1026 workaround disables the write-allocate mode for the L2 cache via the
1027 ACTLR register. Note that setting specific bits in the ACTLR register
1028 may not be available in non-secure mode.
1029
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001030config PL310_ERRATA_588369
1031 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1032 depends on CACHE_L2X0 && ARCH_OMAP4
1033 help
1034 The PL310 L2 cache controller implements three types of Clean &
1035 Invalidate maintenance operations: by Physical Address
1036 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1037 They are architecturally defined to behave as the execution of a
1038 clean operation followed immediately by an invalidate operation,
1039 both performing to the same memory location. This functionality
1040 is not correctly implemented in PL310 as clean lines are not
1041 invalidated as a result of these operations. Note that this errata
1042 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043endmenu
1044
1045source "arch/arm/common/Kconfig"
1046
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047menu "Bus support"
1048
1049config ARM_AMBA
1050 bool
1051
1052config ISA
1053 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001054 help
1055 Find out whether you have ISA slots on your motherboard. ISA is the
1056 name of a bus system, i.e. the way the CPU talks to the other stuff
1057 inside your box. Other bus systems are PCI, EISA, MicroChannel
1058 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1059 newer boards don't support it. If you have ISA, say Y, otherwise N.
1060
Russell King065909b2006-01-04 15:44:16 +00001061# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062config ISA_DMA
1063 bool
Russell King065909b2006-01-04 15:44:16 +00001064 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065
Russell King065909b2006-01-04 15:44:16 +00001066# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001067config ISA_DMA_API
1068 bool
Al Viro5cae8412005-05-04 05:39:22 +01001069
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070config PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +04001071 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE || ARCH_CNS3XXX
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072 help
1073 Find out whether you have a PCI motherboard. PCI is the name of a
1074 bus system, i.e. the way the CPU talks to the other stuff inside
1075 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1076 VESA. If you have PCI, say Y, otherwise N.
1077
Anton Vorontsov52882172010-04-19 13:20:49 +01001078config PCI_DOMAINS
1079 bool
1080 depends on PCI
1081
Matthew Wilcox36e23592007-07-10 10:54:40 -06001082config PCI_SYSCALL
1083 def_bool PCI
1084
Linus Torvalds1da177e2005-04-16 15:20:36 -07001085# Select the host bridge type
1086config PCI_HOST_VIA82C505
1087 bool
1088 depends on PCI && ARCH_SHARK
1089 default y
1090
Mike Rapoporta0113a92007-11-25 08:55:34 +01001091config PCI_HOST_ITE8152
1092 bool
1093 depends on PCI && MACH_ARMCORE
1094 default y
1095 select DMABOUNCE
1096
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097source "drivers/pci/Kconfig"
1098
1099source "drivers/pcmcia/Kconfig"
1100
1101endmenu
1102
1103menu "Kernel Features"
1104
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001105source "kernel/time/Kconfig"
1106
Linus Torvalds1da177e2005-04-16 15:20:36 -07001107config SMP
1108 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001109 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Russell King59ac59f2010-02-11 21:56:07 +00001110 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
Colin Cross1cea7322010-02-21 17:46:23 -08001111 ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_TEGRA)
Russell Kingbc282482009-05-17 18:58:34 +01001112 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001113 select USE_GENERIC_SMP_HELPERS
Colin Cross1cea7322010-02-21 17:46:23 -08001114 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || \
1115 ARCH_VEXPRESS_CA9X4 || ARCH_TEGRA)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001116 help
1117 This enables support for systems with more than one CPU. If you have
1118 a system with only one CPU, like most personal computers, say N. If
1119 you have a system with more than one CPU, say Y.
1120
1121 If you say N here, the kernel will run on single and multiprocessor
1122 machines, but will use only one CPU of a multiprocessor machine. If
1123 you say Y here, the kernel will run on many, but not all, single
1124 processor machines. On a single processor machine, the kernel will
1125 run faster if you say N here.
1126
Adrian Bunk03502fa2008-02-03 15:50:21 +02001127 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001129 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001130
1131 If you don't know what to do here, say N.
1132
Russell Kinga8cbcd92009-05-16 11:51:14 +01001133config HAVE_ARM_SCU
1134 bool
1135 depends on SMP
1136 help
1137 This option enables support for the ARM system coherency unit
1138
Russell Kingf32f4ce2009-05-16 12:14:21 +01001139config HAVE_ARM_TWD
1140 bool
1141 depends on SMP
1142 help
1143 This options enables support for the ARM timer and watchdog unit
1144
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001145choice
1146 prompt "Memory split"
1147 default VMSPLIT_3G
1148 help
1149 Select the desired split between kernel and user memory.
1150
1151 If you are not absolutely sure what you are doing, leave this
1152 option alone!
1153
1154 config VMSPLIT_3G
1155 bool "3G/1G user/kernel split"
1156 config VMSPLIT_2G
1157 bool "2G/2G user/kernel split"
1158 config VMSPLIT_1G
1159 bool "1G/3G user/kernel split"
1160endchoice
1161
1162config PAGE_OFFSET
1163 hex
1164 default 0x40000000 if VMSPLIT_1G
1165 default 0x80000000 if VMSPLIT_2G
1166 default 0xC0000000
1167
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168config NR_CPUS
1169 int "Maximum number of CPUs (2-32)"
1170 range 2 32
1171 depends on SMP
1172 default "4"
1173
Russell Kinga054a812005-11-02 22:24:33 +00001174config HOTPLUG_CPU
1175 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1176 depends on SMP && HOTPLUG && EXPERIMENTAL
1177 help
1178 Say Y here to experiment with turning CPUs off and on. CPUs
1179 can be controlled through /sys/devices/system/cpu.
1180
Russell King37ee16a2005-11-08 19:08:05 +00001181config LOCAL_TIMERS
1182 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001183 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Will Deaconbde28b82010-07-09 13:52:09 +01001184 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Colin Cross1cea7322010-02-21 17:46:23 -08001185 ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_TEGRA)
Russell King37ee16a2005-11-08 19:08:05 +00001186 default y
Colin Cross1cea7322010-02-21 17:46:23 -08001187 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_VEXPRESS || ARCH_OMAP4 || \\
1188 ARCH_U8500 || ARCH_TEGRA
Russell King37ee16a2005-11-08 19:08:05 +00001189 help
1190 Enable support for local timers on SMP platforms, rather then the
1191 legacy IPI broadcast method. Local timers allows the system
1192 accounting to be spread across the timer interval, preventing a
1193 "thundering herd" at every timer tick.
1194
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001195source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196
Russell Kingf8065812006-03-02 22:41:59 +00001197config HZ
1198 int
Kukjin Kim170f4e42010-02-24 16:40:44 +09001199 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001200 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001201 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001202 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001203 default 100
1204
Catalin Marinas16c79652009-07-24 12:33:02 +01001205config THUMB2_KERNEL
1206 bool "Compile the kernel in Thumb-2 mode"
1207 depends on CPU_V7 && EXPERIMENTAL
1208 select AEABI
1209 select ARM_ASM_UNIFIED
1210 help
1211 By enabling this option, the kernel will be compiled in
1212 Thumb-2 mode. A compiler/assembler that understand the unified
1213 ARM-Thumb syntax is needed.
1214
1215 If unsure, say N.
1216
Catalin Marinas0becb082009-07-24 12:32:53 +01001217config ARM_ASM_UNIFIED
1218 bool
1219
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001220config AEABI
1221 bool "Use the ARM EABI to compile the kernel"
1222 help
1223 This option allows for the kernel to be compiled using the latest
1224 ARM ABI (aka EABI). This is only useful if you are using a user
1225 space environment that is also compiled with EABI.
1226
1227 Since there are major incompatibilities between the legacy ABI and
1228 EABI, especially with regard to structure member alignment, this
1229 option also changes the kernel syscall calling convention to
1230 disambiguate both ABIs and allow for backward compatibility support
1231 (selected with CONFIG_OABI_COMPAT).
1232
1233 To use this you need GCC version 4.0.0 or later.
1234
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001235config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001236 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001237 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001238 default y
1239 help
1240 This option preserves the old syscall interface along with the
1241 new (ARM EABI) one. It also provides a compatibility layer to
1242 intercept syscalls that have structure arguments which layout
1243 in memory differs between the legacy ABI and the new ARM EABI
1244 (only for non "thumb" binaries). This option adds a tiny
1245 overhead to all syscalls and produces a slightly larger kernel.
1246 If you know you'll be using only pure EABI user space then you
1247 can say N here. If this option is not selected and you attempt
1248 to execute a legacy ABI binary then the result will be
1249 UNPREDICTABLE (in fact it can be predicted that it won't work
1250 at all). If in doubt say Y.
1251
Mel Gormaneb335752009-05-13 17:34:48 +01001252config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001253 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001254
Russell King05944d72006-11-30 20:43:51 +00001255config ARCH_SPARSEMEM_ENABLE
1256 bool
1257
Russell King07a2f732008-10-01 21:39:58 +01001258config ARCH_SPARSEMEM_DEFAULT
1259 def_bool ARCH_SPARSEMEM_ENABLE
1260
Russell King05944d72006-11-30 20:43:51 +00001261config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001262 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001263
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001264config HIGHMEM
1265 bool "High Memory Support (EXPERIMENTAL)"
1266 depends on MMU && EXPERIMENTAL
1267 help
1268 The address space of ARM processors is only 4 Gigabytes large
1269 and it has to accommodate user address space, kernel address
1270 space as well as some memory mapped IO. That means that, if you
1271 have a large amount of physical memory and/or IO, not all of the
1272 memory can be "permanently mapped" by the kernel. The physical
1273 memory that is not permanently mapped is called "high memory".
1274
1275 Depending on the selected kernel/user memory split, minimum
1276 vmalloc space and actual amount of RAM, you may not need this
1277 option which should result in a slightly faster kernel.
1278
1279 If unsure, say n.
1280
Russell King65cec8e2009-08-17 20:02:06 +01001281config HIGHPTE
1282 bool "Allocate 2nd-level pagetables from highmem"
1283 depends on HIGHMEM
1284 depends on !OUTER_CACHE
1285
Jamie Iles1b8873a2010-02-02 20:25:44 +01001286config HW_PERF_EVENTS
1287 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001288 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001289 default y
1290 help
1291 Enable hardware performance counter support for perf events. If
1292 disabled, perf events will use software events only.
1293
eric miao354e6f72010-06-25 09:46:09 +01001294config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001295 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001296 help
1297 This enables support for sparse irqs. This is useful in general
1298 as most CPUs have a fairly sparse array of IRQ vectors, which
1299 the irq_desc then maps directly on to. Systems with a high
1300 number of off-chip IRQs will want to treat this as
1301 experimental until they have been independently verified.
1302
Dave Hansen3f22ab22005-06-23 00:07:43 -07001303source "mm/Kconfig"
1304
Magnus Dammc1b2d972010-07-05 10:00:11 +01001305config FORCE_MAX_ZONEORDER
1306 int "Maximum zone order" if ARCH_SHMOBILE
1307 range 11 64 if ARCH_SHMOBILE
1308 default "9" if SA1111
1309 default "11"
1310 help
1311 The kernel memory allocator divides physically contiguous memory
1312 blocks into "zones", where each zone is a power of two number of
1313 pages. This option selects the largest power of two that the kernel
1314 keeps in the memory allocator. If you need to allocate very large
1315 blocks of physically contiguous memory, then you may need to
1316 increase this value.
1317
1318 This config option is actually maximum order plus one. For example,
1319 a value of 11 means that the largest free memory block is 2^10 pages.
1320
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321config LEDS
1322 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001323 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001324 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1326 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001327 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001328 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001329 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330 help
1331 If you say Y here, the LEDs on your machine will be used
1332 to provide useful information about your current system status.
1333
1334 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1335 be able to select which LEDs are active using the options below. If
1336 you are compiling a kernel for the EBSA-110 or the LART however, the
1337 red LED will simply flash regularly to indicate that the system is
1338 still functional. It is safe to say Y here if you have a CATS
1339 system, but the driver will do nothing.
1340
1341config LEDS_TIMER
1342 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001343 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1344 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001345 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001346 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001347 default y if ARCH_EBSA110
1348 help
1349 If you say Y here, one of the system LEDs (the green one on the
1350 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1351 will flash regularly to indicate that the system is still
1352 operational. This is mainly useful to kernel hackers who are
1353 debugging unstable kernels.
1354
1355 The LART uses the same LED for both Timer LED and CPU usage LED
1356 functions. You may choose to use both, but the Timer LED function
1357 will overrule the CPU usage LED.
1358
1359config LEDS_CPU
1360 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001361 !ARCH_OMAP) \
1362 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1363 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364 depends on LEDS
1365 help
1366 If you say Y here, the red LED will be used to give a good real
1367 time indication of CPU usage, by lighting whenever the idle task
1368 is not currently executing.
1369
1370 The LART uses the same LED for both Timer LED and CPU usage LED
1371 functions. You may choose to use both, but the Timer LED function
1372 will overrule the CPU usage LED.
1373
1374config ALIGNMENT_TRAP
1375 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001376 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001378 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001380 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1382 address divisible by 4. On 32-bit ARM processors, these non-aligned
1383 fetch/store instructions will be emulated in software if you say
1384 here, which has a severe performance impact. This is necessary for
1385 correct operation of some network protocols. With an IP-only
1386 configuration it is safe to say N, otherwise say Y.
1387
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001388config UACCESS_WITH_MEMCPY
1389 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1390 depends on MMU && EXPERIMENTAL
1391 default y if CPU_FEROCEON
1392 help
1393 Implement faster copy_to_user and clear_user methods for CPU
1394 cores where a 8-word STM instruction give significantly higher
1395 memory write throughput than a sequence of individual 32bit stores.
1396
1397 A possible side effect is a slight increase in scheduling latency
1398 between threads sharing the same address space if they invoke
1399 such copy operations with large buffers.
1400
1401 However, if the CPU data cache is using a write-allocate mode,
1402 this option is unlikely to provide any performance gain.
1403
Nicolas Pitrec743f382010-05-24 23:55:42 -04001404config CC_STACKPROTECTOR
1405 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1406 help
1407 This option turns on the -fstack-protector GCC feature. This
1408 feature puts, at the beginning of functions, a canary value on
1409 the stack just before the return address, and validates
1410 the value just before actually returning. Stack based buffer
1411 overflows (that need to overwrite this return address) now also
1412 overwrite the canary, which gets detected and the attack is then
1413 neutralized via a kernel panic.
1414 This feature requires gcc version 4.2 or above.
1415
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001416config DEPRECATED_PARAM_STRUCT
1417 bool "Provide old way to pass kernel parameters"
1418 help
1419 This was deprecated in 2001 and announced to live on for 5 years.
1420 Some old boot loaders still use this way.
1421
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422endmenu
1423
1424menu "Boot options"
1425
1426# Compressed boot loader in ROM. Yes, we really want to ask about
1427# TEXT and BSS so we preserve their values in the config files.
1428config ZBOOT_ROM_TEXT
1429 hex "Compressed ROM boot loader base address"
1430 default "0"
1431 help
1432 The physical address at which the ROM-able zImage is to be
1433 placed in the target. Platforms which normally make use of
1434 ROM-able zImage formats normally set this to a suitable
1435 value in their defconfig file.
1436
1437 If ZBOOT_ROM is not enabled, this has no effect.
1438
1439config ZBOOT_ROM_BSS
1440 hex "Compressed ROM boot loader BSS address"
1441 default "0"
1442 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001443 The base address of an area of read/write memory in the target
1444 for the ROM-able zImage which must be available while the
1445 decompressor is running. It must be large enough to hold the
1446 entire decompressed kernel plus an additional 128 KiB.
1447 Platforms which normally make use of ROM-able zImage formats
1448 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449
1450 If ZBOOT_ROM is not enabled, this has no effect.
1451
1452config ZBOOT_ROM
1453 bool "Compressed boot loader in ROM/flash"
1454 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1455 help
1456 Say Y here if you intend to execute your compressed kernel image
1457 (zImage) directly from ROM or flash. If unsure, say N.
1458
1459config CMDLINE
1460 string "Default kernel command string"
1461 default ""
1462 help
1463 On some architectures (EBSA110 and CATS), there is currently no way
1464 for the boot loader to pass arguments to the kernel. For these
1465 architectures, you should supply some command-line options at build
1466 time by entering them here. As a minimum, you should specify the
1467 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1468
Alexander Holler92d20402010-02-16 19:04:53 +01001469config CMDLINE_FORCE
1470 bool "Always use the default kernel command string"
1471 depends on CMDLINE != ""
1472 help
1473 Always use the default kernel command string, even if the boot
1474 loader passes other arguments to the kernel.
1475 This is useful if you cannot or don't want to change the
1476 command-line options your boot loader passes to the kernel.
1477
1478 If unsure, say N.
1479
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480config XIP_KERNEL
1481 bool "Kernel Execute-In-Place from ROM"
1482 depends on !ZBOOT_ROM
1483 help
1484 Execute-In-Place allows the kernel to run from non-volatile storage
1485 directly addressable by the CPU, such as NOR flash. This saves RAM
1486 space since the text section of the kernel is not loaded from flash
1487 to RAM. Read-write sections, such as the data section and stack,
1488 are still copied to RAM. The XIP kernel is not compressed since
1489 it has to run directly from flash, so it will take more space to
1490 store it. The flash address used to link the kernel object files,
1491 and for storing it, is configuration dependent. Therefore, if you
1492 say Y here, you must know the proper physical address where to
1493 store the kernel image depending on your own flash memory usage.
1494
1495 Also note that the make target becomes "make xipImage" rather than
1496 "make zImage" or "make Image". The final kernel binary to put in
1497 ROM memory will be arch/arm/boot/xipImage.
1498
1499 If unsure, say N.
1500
1501config XIP_PHYS_ADDR
1502 hex "XIP Kernel Physical Location"
1503 depends on XIP_KERNEL
1504 default "0x00080000"
1505 help
1506 This is the physical address in your flash memory the kernel will
1507 be linked for and stored to. This address is dependent on your
1508 own flash usage.
1509
Richard Purdiec587e4a2007-02-06 21:29:00 +01001510config KEXEC
1511 bool "Kexec system call (EXPERIMENTAL)"
1512 depends on EXPERIMENTAL
1513 help
1514 kexec is a system call that implements the ability to shutdown your
1515 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001516 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001517 you can start any kernel with it, not just Linux.
1518
1519 It is an ongoing process to be certain the hardware in a machine
1520 is properly shutdown, so do not be surprised if this code does not
1521 initially work for you. It may help to enable device hotplugging
1522 support.
1523
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001524config ATAGS_PROC
1525 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001526 depends on KEXEC
1527 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001528 help
1529 Should the atags used to boot the kernel be exported in an "atags"
1530 file in procfs. Useful with kexec.
1531
Eric Miaoe69edc792010-07-05 15:56:50 +02001532config AUTO_ZRELADDR
1533 bool "Auto calculation of the decompressed kernel image address"
1534 depends on !ZBOOT_ROM && !ARCH_U300
1535 help
1536 ZRELADDR is the physical address where the decompressed kernel
1537 image will be placed. If AUTO_ZRELADDR is selected, the address
1538 will be determined at run-time by masking the current IP with
1539 0xf8000000. This assumes the zImage being placed in the first 128MB
1540 from start of memory.
1541
1542config ZRELADDR
1543 hex "Physical address of the decompressed kernel image"
1544 depends on !AUTO_ZRELADDR
1545 default 0x00008000 if ARCH_BCMRING ||\
1546 ARCH_CNS3XXX ||\
1547 ARCH_DOVE ||\
1548 ARCH_EBSA110 ||\
1549 ARCH_FOOTBRIDGE ||\
1550 ARCH_INTEGRATOR ||\
1551 ARCH_IOP13XX ||\
1552 ARCH_IOP33X ||\
1553 ARCH_IXP2000 ||\
1554 ARCH_IXP23XX ||\
1555 ARCH_IXP4XX ||\
1556 ARCH_KIRKWOOD ||\
1557 ARCH_KS8695 ||\
1558 ARCH_LOKI ||\
1559 ARCH_MMP ||\
1560 ARCH_MV78XX0 ||\
1561 ARCH_NOMADIK ||\
1562 ARCH_NUC93X ||\
1563 ARCH_NS9XXX ||\
1564 ARCH_ORION5X ||\
1565 ARCH_SPEAR3XX ||\
1566 ARCH_SPEAR6XX ||\
1567 ARCH_U8500 ||\
1568 ARCH_VERSATILE ||\
1569 ARCH_W90X900
1570 default 0x08008000 if ARCH_MX1 ||\
1571 ARCH_SHARK
1572 default 0x10008000 if ARCH_MSM ||\
1573 ARCH_OMAP1 ||\
1574 ARCH_RPC
1575 default 0x20008000 if ARCH_S5P6440 ||\
1576 ARCH_S5P6442 ||\
1577 ARCH_S5PC100 ||\
1578 ARCH_S5PV210
1579 default 0x30008000 if ARCH_S3C2410 ||\
1580 ARCH_S3C2400 ||\
1581 ARCH_S3C2412 ||\
1582 ARCH_S3C2416 ||\
1583 ARCH_S3C2440 ||\
1584 ARCH_S3C2443
1585 default 0x40008000 if ARCH_STMP378X ||\
1586 ARCH_STMP37XX ||\
1587 ARCH_SH7372 ||\
1588 ARCH_SH7377
1589 default 0x50008000 if ARCH_S3C64XX ||\
1590 ARCH_SH7367
1591 default 0x60008000 if ARCH_VEXPRESS
1592 default 0x80008000 if ARCH_MX25 ||\
1593 ARCH_MX3 ||\
1594 ARCH_NETX ||\
1595 ARCH_OMAP2PLUS ||\
1596 ARCH_PNX4008
1597 default 0x90008000 if ARCH_MX5 ||\
1598 ARCH_MX91231
1599 default 0xa0008000 if ARCH_IOP32X ||\
1600 ARCH_PXA ||\
1601 MACH_MX27
1602 default 0xc0008000 if ARCH_LH7A40X ||\
1603 MACH_MX21
1604 default 0xf0008000 if ARCH_AAEC2000 ||\
1605 ARCH_L7200
1606 default 0xc0028000 if ARCH_CLPS711X
1607 default 0x70008000 if ARCH_AT91 && (ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
1608 default 0x20008000 if ARCH_AT91 && !(ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
1609 default 0xc0008000 if ARCH_DAVINCI && ARCH_DAVINCI_DA8XX
1610 default 0x80008000 if ARCH_DAVINCI && !ARCH_DAVINCI_DA8XX
1611 default 0x00008000 if ARCH_EP93XX && EP93XX_SDCE3_SYNC_PHYS_OFFSET
1612 default 0xc0008000 if ARCH_EP93XX && EP93XX_SDCE0_PHYS_OFFSET
1613 default 0xd0008000 if ARCH_EP93XX && EP93XX_SDCE1_PHYS_OFFSET
1614 default 0xe0008000 if ARCH_EP93XX && EP93XX_SDCE2_PHYS_OFFSET
1615 default 0xf0008000 if ARCH_EP93XX && EP93XX_SDCE3_ASYNC_PHYS_OFFSET
1616 default 0x00008000 if ARCH_GEMINI && GEMINI_MEM_SWAP
1617 default 0x10008000 if ARCH_GEMINI && !GEMINI_MEM_SWAP
1618 default 0x70008000 if ARCH_REALVIEW && REALVIEW_HIGH_PHYS_OFFSET
1619 default 0x00008000 if ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET
1620 default 0xc0208000 if ARCH_SA1100 && SA1111
1621 default 0xc0008000 if ARCH_SA1100 && !SA1111
1622 default 0x30108000 if ARCH_S3C2410 && PM_H1940
1623 default 0x28E08000 if ARCH_U300 && MACH_U300_SINGLE_RAM
1624 default 0x48008000 if ARCH_U300 && !MACH_U300_SINGLE_RAM
1625 help
1626 ZRELADDR is the physical address where the decompressed kernel
1627 image will be placed. ZRELADDR has to be specified when the
1628 assumption of AUTO_ZRELADDR is not valid, or when ZBOOT_ROM is
1629 selected.
1630
Linus Torvalds1da177e2005-04-16 15:20:36 -07001631endmenu
1632
Russell Kingac9d7ef2008-08-18 17:26:00 +01001633menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001634
Ben Dooks89c52ed2009-07-30 23:23:24 +01001635if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001636
1637source "drivers/cpufreq/Kconfig"
1638
1639config CPU_FREQ_SA1100
1640 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001641
1642config CPU_FREQ_SA1110
1643 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001644
1645config CPU_FREQ_INTEGRATOR
1646 tristate "CPUfreq driver for ARM Integrator CPUs"
1647 depends on ARCH_INTEGRATOR && CPU_FREQ
1648 default y
1649 help
1650 This enables the CPUfreq driver for ARM Integrator CPUs.
1651
1652 For details, take a look at <file:Documentation/cpu-freq>.
1653
1654 If in doubt, say Y.
1655
Russell King9e2697f2007-12-14 13:30:14 +00001656config CPU_FREQ_PXA
1657 bool
1658 depends on CPU_FREQ && ARCH_PXA && PXA25x
1659 default y
1660 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1661
Mark Brownb3748dd2009-06-15 11:23:20 +01001662config CPU_FREQ_S3C64XX
1663 bool "CPUfreq support for Samsung S3C64XX CPUs"
1664 depends on CPU_FREQ && CPU_S3C6410
1665
Ben Dooks9d56c022009-07-30 23:23:25 +01001666config CPU_FREQ_S3C
1667 bool
1668 help
1669 Internal configuration node for common cpufreq on Samsung SoC
1670
1671config CPU_FREQ_S3C24XX
1672 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1673 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1674 select CPU_FREQ_S3C
1675 help
1676 This enables the CPUfreq driver for the Samsung S3C24XX family
1677 of CPUs.
1678
1679 For details, take a look at <file:Documentation/cpu-freq>.
1680
1681 If in doubt, say N.
1682
1683config CPU_FREQ_S3C24XX_PLL
1684 bool "Support CPUfreq changing of PLL frequency"
1685 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1686 help
1687 Compile in support for changing the PLL frequency from the
1688 S3C24XX series CPUfreq driver. The PLL takes time to settle
1689 after a frequency change, so by default it is not enabled.
1690
1691 This also means that the PLL tables for the selected CPU(s) will
1692 be built which may increase the size of the kernel image.
1693
1694config CPU_FREQ_S3C24XX_DEBUG
1695 bool "Debug CPUfreq Samsung driver core"
1696 depends on CPU_FREQ_S3C24XX
1697 help
1698 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1699
1700config CPU_FREQ_S3C24XX_IODEBUG
1701 bool "Debug CPUfreq Samsung driver IO timing"
1702 depends on CPU_FREQ_S3C24XX
1703 help
1704 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1705
Ben Dookse6d197a2009-07-30 23:23:42 +01001706config CPU_FREQ_S3C24XX_DEBUGFS
1707 bool "Export debugfs for CPUFreq"
1708 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1709 help
1710 Export status information via debugfs.
1711
Linus Torvalds1da177e2005-04-16 15:20:36 -07001712endif
1713
Russell Kingac9d7ef2008-08-18 17:26:00 +01001714source "drivers/cpuidle/Kconfig"
1715
1716endmenu
1717
Linus Torvalds1da177e2005-04-16 15:20:36 -07001718menu "Floating point emulation"
1719
1720comment "At least one emulation must be selected"
1721
1722config FPE_NWFPE
1723 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001724 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001725 ---help---
1726 Say Y to include the NWFPE floating point emulator in the kernel.
1727 This is necessary to run most binaries. Linux does not currently
1728 support floating point hardware so you need to say Y here even if
1729 your machine has an FPA or floating point co-processor podule.
1730
1731 You may say N here if you are going to load the Acorn FPEmulator
1732 early in the bootup.
1733
1734config FPE_NWFPE_XP
1735 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001736 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001737 help
1738 Say Y to include 80-bit support in the kernel floating-point
1739 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1740 Note that gcc does not generate 80-bit operations by default,
1741 so in most cases this option only enlarges the size of the
1742 floating point emulator without any good reason.
1743
1744 You almost surely want to say N here.
1745
1746config FPE_FASTFPE
1747 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001748 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001749 ---help---
1750 Say Y here to include the FAST floating point emulator in the kernel.
1751 This is an experimental much faster emulator which now also has full
1752 precision for the mantissa. It does not support any exceptions.
1753 It is very simple, and approximately 3-6 times faster than NWFPE.
1754
1755 It should be sufficient for most programs. It may be not suitable
1756 for scientific calculations, but you have to check this for yourself.
1757 If you do not feel you need a faster FP emulation you should better
1758 choose NWFPE.
1759
1760config VFP
1761 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001762 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763 help
1764 Say Y to include VFP support code in the kernel. This is needed
1765 if your hardware includes a VFP unit.
1766
1767 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1768 release notes and additional status information.
1769
1770 Say N if your target does not have VFP hardware.
1771
Catalin Marinas25ebee02007-09-25 15:22:24 +01001772config VFPv3
1773 bool
1774 depends on VFP
1775 default y if CPU_V7
1776
Catalin Marinasb5872db2008-01-10 19:16:17 +01001777config NEON
1778 bool "Advanced SIMD (NEON) Extension support"
1779 depends on VFPv3 && CPU_V7
1780 help
1781 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1782 Extension.
1783
Linus Torvalds1da177e2005-04-16 15:20:36 -07001784endmenu
1785
1786menu "Userspace binary formats"
1787
1788source "fs/Kconfig.binfmt"
1789
1790config ARTHUR
1791 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001792 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001793 help
1794 Say Y here to include the kernel code necessary if you want to run
1795 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1796 experimental; if this sounds frightening, say N and sleep in peace.
1797 You can also say M here to compile this support as a module (which
1798 will be called arthur).
1799
1800endmenu
1801
1802menu "Power management options"
1803
Russell Kingeceab4a2005-11-15 11:31:41 +00001804source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805
Johannes Bergf4cb5702007-12-08 02:14:00 +01001806config ARCH_SUSPEND_POSSIBLE
1807 def_bool y
1808
Linus Torvalds1da177e2005-04-16 15:20:36 -07001809endmenu
1810
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001811source "net/Kconfig"
1812
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001813source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001814
1815source "fs/Kconfig"
1816
Linus Torvalds1da177e2005-04-16 15:20:36 -07001817source "arch/arm/Kconfig.debug"
1818
1819source "security/Kconfig"
1820
1821source "crypto/Kconfig"
1822
1823source "lib/Kconfig"