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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
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100274 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100275 This enables support for systems based on the Atmel AT91RM9200,
276 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100277
Russell Kingccf50e22010-03-15 19:03:06 +0000278config ARCH_BCMRING
279 bool "Broadcom BCMRING"
280 depends on MMU
281 select CPU_V6
282 select ARM_AMBA
283 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000284 select GENERIC_CLOCKEVENTS
285 select ARCH_WANT_OPTIONAL_GPIOLIB
286 help
287 Support for Broadcom's BCMRing platform.
288
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100290 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000291 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000292 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000293 help
294 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300296config ARCH_CNS3XXX
297 bool "Cavium Networks CNS3XXX family"
298 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300299 select GENERIC_CLOCKEVENTS
300 select ARM_GIC
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400301 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300302 help
303 Support for Cavium Networks CNS3XXX platform.
304
Russell King788c9702009-04-26 14:21:59 +0100305config ARCH_GEMINI
306 bool "Cortina Systems Gemini"
307 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100308 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000309 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100310 help
311 Support for the Cortina Systems Gemini family SoCs
312
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313config ARCH_EBSA110
314 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000315 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100316 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000317 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000318 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 help
320 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000321 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 Ethernet interface, two PCMCIA sockets, two serial ports and a
323 parallel port.
324
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000325config ARCH_EP93XX
326 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000327 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000328 select ARM_AMBA
329 select ARM_VIC
Russell Kingae696fd2008-11-30 17:11:49 +0000330 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700331 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100332 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000333 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000334 help
335 This enables support for the Cirrus EP93xx series of CPUs.
336
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337config ARCH_FOOTBRIDGE
338 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000339 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000341 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000342 help
343 Support for systems based on the DC21285 companion chip
344 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345
Russell King788c9702009-04-26 14:21:59 +0100346config ARCH_MXC
347 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100348 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100349 select ARCH_REQUIRE_GPIOLIB
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100350 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100351 help
352 Support for Freescale MXC/iMX-based family of processors
353
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100354config ARCH_STMP3XXX
355 bool "Freescale STMP3xxx"
356 select CPU_ARM926T
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100357 select COMMON_CLKDEV
358 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100359 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100360 select USB_ARCH_HAS_EHCI
361 help
362 Support for systems based on the Freescale 3xxx CPUs.
363
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100364config ARCH_NETX
365 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000366 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100367 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100368 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000369 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100370 This enables support for systems based on the Hilscher NetX Soc
371
372config ARCH_H720X
373 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000374 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100375 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000376 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100377 help
378 This enables support for systems based on the Hynix HMS720x
379
Russell King3b938be2007-05-12 11:25:44 +0100380config ARCH_IOP13XX
381 bool "IOP13xx-based"
382 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000383 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100384 select PLAT_IOP
385 select PCI
386 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100387 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100388 help
389 Support for Intel's IOP13XX (XScale) family of processors.
390
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100391config ARCH_IOP32X
392 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100393 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000394 select CPU_XSCALE
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100395 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100396 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100397 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000398 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100399 Support for Intel's 80219 and IOP32X (XScale) family of
400 processors.
401
402config ARCH_IOP33X
403 bool "IOP33x-based"
404 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000405 select CPU_XSCALE
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100406 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100407 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100408 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100409 help
410 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411
Russell King3b938be2007-05-12 11:25:44 +0100412config ARCH_IXP23XX
413 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100414 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000415 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100416 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000417 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100418 help
Russell King3b938be2007-05-12 11:25:44 +0100419 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420
421config ARCH_IXP2000
422 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100423 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000424 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100425 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000426 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000427 help
428 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429
Russell King3b938be2007-05-12 11:25:44 +0100430config ARCH_IXP4XX
431 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100432 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000433 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100434 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100435 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100436 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100437 help
Russell King3b938be2007-05-12 11:25:44 +0100438 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100439
Saeed Bisharaedabd382009-08-06 15:12:43 +0300440config ARCH_DOVE
441 bool "Marvell Dove"
442 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300443 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300444 select GENERIC_CLOCKEVENTS
445 select PLAT_ORION
446 help
447 Support for the Marvell Dove SoC 88AP510
448
Saeed Bishara651c74c2008-06-22 22:45:06 +0200449config ARCH_KIRKWOOD
450 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000451 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200452 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700453 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200454 select GENERIC_CLOCKEVENTS
455 select PLAT_ORION
456 help
457 Support for the following Marvell Kirkwood series SoCs:
458 88F6180, 88F6192 and 88F6281.
459
Russell King788c9702009-04-26 14:21:59 +0100460config ARCH_LOKI
461 bool "Marvell Loki (88RC8480)"
462 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100463 select GENERIC_CLOCKEVENTS
464 select PLAT_ORION
465 help
466 Support for the Marvell Loki (88RC8480) SoC.
467
Kevin Wells40805942010-07-27 08:49:04 -0700468config ARCH_LPC32XX
469 bool "NXP LPC32XX"
470 select CPU_ARM926T
471 select ARCH_REQUIRE_GPIOLIB
472 select HAVE_IDE
473 select ARM_AMBA
474 select USB_ARCH_HAS_OHCI
475 select COMMON_CLKDEV
476 select GENERIC_TIME
477 select GENERIC_CLOCKEVENTS
478 help
479 Support for the NXP LPC32XX family of processors
480
Russell King788c9702009-04-26 14:21:59 +0100481config ARCH_MV78XX0
482 bool "Marvell MV78xx0"
483 select CPU_FEROCEON
484 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700485 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100486 select GENERIC_CLOCKEVENTS
487 select PLAT_ORION
488 help
489 Support for the following Marvell MV78xx0 series SoCs:
490 MV781x0, MV782x0.
491
492config ARCH_ORION5X
493 bool "Marvell Orion"
494 depends on MMU
495 select CPU_FEROCEON
496 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700497 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100498 select GENERIC_CLOCKEVENTS
499 select PLAT_ORION
500 help
501 Support for the following Marvell Orion 5x series SoCs:
502 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
503 Orion-2 (5281), Orion-1-90 (6183).
504
505config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500506 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100507 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100508 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100509 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100510 select GENERIC_CLOCKEVENTS
511 select TICK_ONESHOT
512 select PLAT_PXA
513 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500514 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100515
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100516config ARCH_KS8695
517 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000518 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100519 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000520 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100521 help
522 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
523 System-on-Chip devices.
524
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100525config ARCH_NS9XXX
526 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000527 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100528 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100529 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700530 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100531 help
532 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
533 System.
534
535 <http://www.digi.com/products/microprocessors/index.jsp>
536
Russell King788c9702009-04-26 14:21:59 +0100537config ARCH_W90X900
538 bool "Nuvoton W90X900 CPU"
539 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100540 select ARCH_REQUIRE_GPIOLIB
wanzongshun0e4a34b2009-06-10 15:50:44 +0100541 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100542 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200543 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100544 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
545 At present, the w90x900 has been renamed nuc900, regarding
546 the ARM series product line, you can login the following
547 link address to know more.
548
549 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
550 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400551
wanzongshuna62e9032009-12-31 15:06:05 +0100552config ARCH_NUC93X
553 bool "Nuvoton NUC93X CPU"
554 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100555 select COMMON_CLKDEV
556 help
557 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
558 low-power and high performance MPEG-4/JPEG multimedia controller chip.
559
Erik Gillingc5f80062010-01-21 16:53:02 -0800560config ARCH_TEGRA
561 bool "NVIDIA Tegra"
562 select GENERIC_TIME
563 select GENERIC_CLOCKEVENTS
564 select GENERIC_GPIO
565 select HAVE_CLK
Colin Crossd8611962010-01-28 16:40:29 -0800566 select COMMON_CLKDEV
Erik Gillingc5f80062010-01-21 16:53:02 -0800567 select ARCH_HAS_BARRIERS if CACHE_L2X0
568 help
569 This enables support for NVIDIA Tegra based systems (Tegra APX,
570 Tegra 6xx and Tegra 2 series).
571
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100572config ARCH_PNX4008
573 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000574 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000575 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000576 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100577 help
578 This enables support for Philips PNX4008 mobile platform.
579
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700581 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100582 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500583 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100584 select ARCH_HAS_CPUFREQ
Russell King8c3abc72008-11-08 20:25:21 +0000585 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700586 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100587 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000588 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800589 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000590 help
eric miao2c8086a2007-09-11 19:13:17 -0700591 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592
Russell King788c9702009-04-26 14:21:59 +0100593config ARCH_MSM
594 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500595 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800596 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700597 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800598 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800599 Support for Qualcomm MSM/QSD based systems. This runs on the
600 apps processor of the MSM/QSD and depends on a shared memory
601 interface to the modem processor which runs the baseband
602 stack and controls some vital subsystems
603 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800604
Magnus Dammc793c1b2010-02-05 11:14:49 +0000605config ARCH_SHMOBILE
606 bool "Renesas SH-Mobile"
607 help
608 Support for Renesas's SH-Mobile ARM platforms
609
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610config ARCH_RPC
611 bool "RiscPC"
612 select ARCH_ACORN
613 select FIQ
614 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100615 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100616 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000617 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000618 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100619 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000620 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621 help
622 On the Acorn Risc-PC, Linux can support the internal IDE disk and
623 CD-ROM interface, serial and parallel port, and the floppy drive.
624
625config ARCH_SA1100
626 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000627 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100628 select ISA
Russell King05944d72006-11-30 20:43:51 +0000629 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500630 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100631 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000632 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100633 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700634 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100635 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700636 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000637 help
638 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639
640config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900641 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800642 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100643 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700644 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000645 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900646 select HAVE_S3C2410_I2C
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
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900676 select HAVE_S3C2410_I2C
Banajit Goswamid8653d92010-07-29 22:22:40 +0900677 select HAVE_S3C2410_WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100678 help
679 Samsung S3C64XX series based systems
680
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900681config ARCH_S5P6440
682 bool "Samsung S5P6440"
683 select CPU_V6
684 select GENERIC_GPIO
685 select HAVE_CLK
Banajit Goswamid8653d92010-07-29 22:22:40 +0900686 select HAVE_S3C2410_WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900687 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900688 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900689 select HAVE_S3C_RTC
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900690 help
691 Samsung S5P6440 CPU based systems
692
Kukjin Kim550db7f2010-01-29 10:19:26 +0900693config ARCH_S5P6442
694 bool "Samsung S5P6442"
695 select CPU_V6
696 select GENERIC_GPIO
697 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900698 select ARCH_USES_GETTIMEOFFSET
Banajit Goswamid8653d92010-07-29 22:22:40 +0900699 select HAVE_S3C2410_WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900700 help
701 Samsung S5P6442 CPU based systems
702
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200703config ARCH_S5PC100
704 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900705 select GENERIC_GPIO
706 select HAVE_CLK
707 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100708 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900709 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900710 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900711 select HAVE_S3C_RTC
Banajit Goswamid8653d92010-07-29 22:22:40 +0900712 select HAVE_S3C2410_WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900713 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200714 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900715
Kukjin Kim170f4e42010-02-24 16:40:44 +0900716config ARCH_S5PV210
717 bool "Samsung S5PV210/S5PC110"
718 select CPU_V7
719 select GENERIC_GPIO
720 select HAVE_CLK
721 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900722 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900723 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900724 select HAVE_S3C_RTC
Banajit Goswamid8653d92010-07-29 22:22:40 +0900725 select HAVE_S3C2410_WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900726 help
727 Samsung S5PV210/S5PC110 series based systems
728
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900729config ARCH_S5PV310
730 bool "Samsung S5PV310/S5PC210"
731 select CPU_V7
732 select GENERIC_GPIO
733 select HAVE_CLK
734 select GENERIC_CLOCKEVENTS
735 help
736 Samsung S5PV310 series based systems
737
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738config ARCH_SHARK
739 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000740 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100741 select ISA
742 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100743 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100744 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000745 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000746 help
747 Support for the StrongARM based Digital DNARD machine, also known
748 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749
750config ARCH_LH7A40X
751 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000752 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100753 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000754 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755 help
756 Say Y here for systems based on one of the Sharp LH7A40X
757 System on a Chip processors. These CPUs include an ARM922T
758 core with a wide array of integrated devices for
759 hand-held and low-power applications.
760
Linus Walleijd98aac72009-04-27 10:21:46 +0100761config ARCH_U300
762 bool "ST-Ericsson U300 Series"
763 depends on MMU
764 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100765 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100766 select ARM_AMBA
767 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100768 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100769 select COMMON_CLKDEV
770 select GENERIC_GPIO
771 help
772 Support for ST-Ericsson U300 series mobile platforms.
773
Russell Kingccf50e22010-03-15 19:03:06 +0000774config ARCH_U8500
775 bool "ST-Ericsson U8500 Series"
776 select CPU_V7
777 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000778 select GENERIC_CLOCKEVENTS
779 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100780 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000781 help
782 Support for ST-Ericsson's Ux500 architecture
783
784config ARCH_NOMADIK
785 bool "STMicroelectronics Nomadik"
786 select ARM_AMBA
787 select ARM_VIC
788 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000789 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000790 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000791 select ARCH_REQUIRE_GPIOLIB
792 help
793 Support for the Nomadik platform by ST-Ericsson
794
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100795config ARCH_DAVINCI
796 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100797 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700798 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100799 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700800 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700801 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700802 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530803 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100804 help
805 Support for TI's DaVinci platform.
806
Russell King3b938be2007-05-12 11:25:44 +0100807config ARCH_OMAP
808 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700809 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700810 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100811 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700812 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800813 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100814 help
815 Support for TI's OMAP platform (OMAP1 and OMAP2).
816
viresh kumarcee37e52010-04-01 12:31:05 +0100817config PLAT_SPEAR
818 bool "ST SPEAr"
819 select ARM_AMBA
820 select ARCH_REQUIRE_GPIOLIB
821 select COMMON_CLKDEV
822 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100823 select HAVE_CLK
824 help
825 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
826
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827endchoice
828
Russell Kingccf50e22010-03-15 19:03:06 +0000829#
830# This is sorted alphabetically by mach-* pathname. However, plat-*
831# Kconfigs may be included either alphabetically (according to the
832# plat- suffix) or along side the corresponding mach-* source.
833#
Russell King95b8f202010-01-14 11:43:54 +0000834source "arch/arm/mach-aaec2000/Kconfig"
835
836source "arch/arm/mach-at91/Kconfig"
837
838source "arch/arm/mach-bcmring/Kconfig"
839
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840source "arch/arm/mach-clps711x/Kconfig"
841
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300842source "arch/arm/mach-cns3xxx/Kconfig"
843
Russell King95b8f202010-01-14 11:43:54 +0000844source "arch/arm/mach-davinci/Kconfig"
845
846source "arch/arm/mach-dove/Kconfig"
847
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000848source "arch/arm/mach-ep93xx/Kconfig"
849
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850source "arch/arm/mach-footbridge/Kconfig"
851
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200852source "arch/arm/mach-gemini/Kconfig"
853
Russell King95b8f202010-01-14 11:43:54 +0000854source "arch/arm/mach-h720x/Kconfig"
855
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856source "arch/arm/mach-integrator/Kconfig"
857
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100858source "arch/arm/mach-iop32x/Kconfig"
859
860source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861
Dan Williams285f5fa2006-12-07 02:59:39 +0100862source "arch/arm/mach-iop13xx/Kconfig"
863
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864source "arch/arm/mach-ixp4xx/Kconfig"
865
866source "arch/arm/mach-ixp2000/Kconfig"
867
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100868source "arch/arm/mach-ixp23xx/Kconfig"
869
Russell King95b8f202010-01-14 11:43:54 +0000870source "arch/arm/mach-kirkwood/Kconfig"
871
872source "arch/arm/mach-ks8695/Kconfig"
873
874source "arch/arm/mach-lh7a40x/Kconfig"
875
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200876source "arch/arm/mach-loki/Kconfig"
877
Kevin Wells40805942010-07-27 08:49:04 -0700878source "arch/arm/mach-lpc32xx/Kconfig"
879
Russell King95b8f202010-01-14 11:43:54 +0000880source "arch/arm/mach-msm/Kconfig"
881
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200882source "arch/arm/mach-mv78xx0/Kconfig"
883
Russell King95b8f202010-01-14 11:43:54 +0000884source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885
Russell King95b8f202010-01-14 11:43:54 +0000886source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800887
Russell King95b8f202010-01-14 11:43:54 +0000888source "arch/arm/mach-nomadik/Kconfig"
889source "arch/arm/plat-nomadik/Kconfig"
890
891source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700892
Russell Kingd91a89102010-02-04 18:13:17 +0000893source "arch/arm/mach-nuc93x/Kconfig"
894
Tony Lindgrend48af152005-07-10 19:58:17 +0100895source "arch/arm/plat-omap/Kconfig"
896
897source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898
Tony Lindgren1dbae812005-11-10 14:26:51 +0000899source "arch/arm/mach-omap2/Kconfig"
900
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400901source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400902
Russell King95b8f202010-01-14 11:43:54 +0000903source "arch/arm/mach-pxa/Kconfig"
904source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905
Russell King95b8f202010-01-14 11:43:54 +0000906source "arch/arm/mach-mmp/Kconfig"
907
908source "arch/arm/mach-realview/Kconfig"
909
910source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300911
Ben Dookscf383672009-11-10 00:14:58 +0000912source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100913source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900914source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100915
viresh kumarcee37e52010-04-01 12:31:05 +0100916source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100917
918if ARCH_S3C2410
919source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100921source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900922source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100923source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100924source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100925endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700926
Ben Dooksa08ab632008-10-21 14:06:39 +0100927if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900928source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100929endif
930
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900931source "arch/arm/mach-s5p6440/Kconfig"
932
Kukjin Kim550db7f2010-01-29 10:19:26 +0900933source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100934
Byungho Min5a7652f2009-06-23 21:39:42 +0900935source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900936
Kukjin Kim170f4e42010-02-24 16:40:44 +0900937source "arch/arm/mach-s5pv210/Kconfig"
938
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900939source "arch/arm/mach-s5pv310/Kconfig"
940
Russell King882d01f2010-03-02 23:40:15 +0000941source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942
Russell King882d01f2010-03-02 23:40:15 +0000943source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c84c2007-11-26 04:12:13 -0800944
Erik Gillingc5f80062010-01-21 16:53:02 -0800945source "arch/arm/mach-tegra/Kconfig"
946
Russell King95b8f202010-01-14 11:43:54 +0000947source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100948
Russell King95b8f202010-01-14 11:43:54 +0000949source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950
951source "arch/arm/mach-versatile/Kconfig"
952
Russell Kingceade892010-02-11 21:44:53 +0000953source "arch/arm/mach-vexpress/Kconfig"
954
wanzongshun7ec80dd2008-12-03 03:55:38 +0100955source "arch/arm/mach-w90x900/Kconfig"
956
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957# Definitions to make life easier
958config ARCH_ACORN
959 bool
960
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100961config PLAT_IOP
962 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700963 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100964
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400965config PLAT_ORION
966 bool
967
Eric Miaobd5ce432009-01-20 12:06:01 +0800968config PLAT_PXA
969 bool
970
Russell Kingf4b8b312010-01-14 12:48:06 +0000971config PLAT_VERSATILE
972 bool
973
Russell Kinge3887712010-01-14 13:30:16 +0000974config ARM_TIMER_SP804
975 bool
976
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977source arch/arm/mm/Kconfig
978
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100979config IWMMXT
980 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800981 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
982 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100983 help
984 Enable support for iWMMXt context switching at run time if
985 running on a CPU that supports it.
986
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
988config XSCALE_PMU
989 bool
990 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
991 default y
992
Jamie Iles0f4f0672010-02-02 20:23:15 +0100993config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +0100994 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
995 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +0100996 default y
997 bool
998
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100999if !MMU
1000source "arch/arm/Kconfig-nommu"
1001endif
1002
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001003config ARM_ERRATA_411920
1004 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
1005 depends on CPU_V6 && !SMP
1006 help
1007 Invalidation of the Instruction Cache operation can
1008 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1009 It does not affect the MPCore. This option enables the ARM Ltd.
1010 recommended workaround.
1011
Catalin Marinas7ce236fc2009-04-30 17:06:09 +01001012config ARM_ERRATA_430973
1013 bool "ARM errata: Stale prediction on replaced interworking branch"
1014 depends on CPU_V7
1015 help
1016 This option enables the workaround for the 430973 Cortex-A8
1017 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1018 interworking branch is replaced with another code sequence at the
1019 same virtual address, whether due to self-modifying code or virtual
1020 to physical address re-mapping, Cortex-A8 does not recover from the
1021 stale interworking branch prediction. This results in Cortex-A8
1022 executing the new code sequence in the incorrect ARM or Thumb state.
1023 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1024 and also flushes the branch target cache at every context switch.
1025 Note that setting specific bits in the ACTLR register may not be
1026 available in non-secure mode.
1027
Catalin Marinas855c5512009-04-30 17:06:15 +01001028config ARM_ERRATA_458693
1029 bool "ARM errata: Processor deadlock when a false hazard is created"
1030 depends on CPU_V7
1031 help
1032 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1033 erratum. For very specific sequences of memory operations, it is
1034 possible for a hazard condition intended for a cache line to instead
1035 be incorrectly associated with a different cache line. This false
1036 hazard might then cause a processor deadlock. The workaround enables
1037 the L1 caching of the NEON accesses and disables the PLD instruction
1038 in the ACTLR register. Note that setting specific bits in the ACTLR
1039 register may not be available in non-secure mode.
1040
Catalin Marinas0516e462009-04-30 17:06:20 +01001041config ARM_ERRATA_460075
1042 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1043 depends on CPU_V7
1044 help
1045 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1046 erratum. Any asynchronous access to the L2 cache may encounter a
1047 situation in which recent store transactions to the L2 cache are lost
1048 and overwritten with stale memory contents from external memory. The
1049 workaround disables the write-allocate mode for the L2 cache via the
1050 ACTLR register. Note that setting specific bits in the ACTLR register
1051 may not be available in non-secure mode.
1052
Will Deacon9f050272010-09-14 09:51:43 +01001053config ARM_ERRATA_742230
1054 bool "ARM errata: DMB operation may be faulty"
1055 depends on CPU_V7 && SMP
1056 help
1057 This option enables the workaround for the 742230 Cortex-A9
1058 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1059 between two write operations may not ensure the correct visibility
1060 ordering of the two writes. This workaround sets a specific bit in
1061 the diagnostic register of the Cortex-A9 which causes the DMB
1062 instruction to behave as a DSB, ensuring the correct behaviour of
1063 the two writes.
1064
Will Deacona672e992010-09-14 09:53:02 +01001065config ARM_ERRATA_742231
1066 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1067 depends on CPU_V7 && SMP
1068 help
1069 This option enables the workaround for the 742231 Cortex-A9
1070 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1071 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1072 accessing some data located in the same cache line, may get corrupted
1073 data due to bad handling of the address hazard when the line gets
1074 replaced from one of the CPUs at the same time as another CPU is
1075 accessing it. This workaround sets specific bits in the diagnostic
1076 register of the Cortex-A9 which reduces the linefill issuing
1077 capabilities of the processor.
1078
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001079config PL310_ERRATA_588369
1080 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1081 depends on CACHE_L2X0 && ARCH_OMAP4
1082 help
1083 The PL310 L2 cache controller implements three types of Clean &
1084 Invalidate maintenance operations: by Physical Address
1085 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1086 They are architecturally defined to behave as the execution of a
1087 clean operation followed immediately by an invalidate operation,
1088 both performing to the same memory location. This functionality
1089 is not correctly implemented in PL310 as clean lines are not
1090 invalidated as a result of these operations. Note that this errata
1091 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001092
1093config ARM_ERRATA_720789
1094 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1095 depends on CPU_V7 && SMP
1096 help
1097 This option enables the workaround for the 720789 Cortex-A9 (prior to
1098 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1099 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1100 As a consequence of this erratum, some TLB entries which should be
1101 invalidated are not, resulting in an incoherency in the system page
1102 tables. The workaround changes the TLB flushing routines to invalidate
1103 entries regardless of the ASID.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104endmenu
1105
1106source "arch/arm/common/Kconfig"
1107
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108menu "Bus support"
1109
1110config ARM_AMBA
1111 bool
1112
1113config ISA
1114 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001115 help
1116 Find out whether you have ISA slots on your motherboard. ISA is the
1117 name of a bus system, i.e. the way the CPU talks to the other stuff
1118 inside your box. Other bus systems are PCI, EISA, MicroChannel
1119 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1120 newer boards don't support it. If you have ISA, say Y, otherwise N.
1121
Russell King065909b2006-01-04 15:44:16 +00001122# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123config ISA_DMA
1124 bool
Russell King065909b2006-01-04 15:44:16 +00001125 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126
Russell King065909b2006-01-04 15:44:16 +00001127# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001128config ISA_DMA_API
1129 bool
Al Viro5cae8412005-05-04 05:39:22 +01001130
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131config PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +04001132 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 -07001133 help
1134 Find out whether you have a PCI motherboard. PCI is the name of a
1135 bus system, i.e. the way the CPU talks to the other stuff inside
1136 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1137 VESA. If you have PCI, say Y, otherwise N.
1138
Anton Vorontsov52882172010-04-19 13:20:49 +01001139config PCI_DOMAINS
1140 bool
1141 depends on PCI
1142
Matthew Wilcox36e23592007-07-10 10:54:40 -06001143config PCI_SYSCALL
1144 def_bool PCI
1145
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146# Select the host bridge type
1147config PCI_HOST_VIA82C505
1148 bool
1149 depends on PCI && ARCH_SHARK
1150 default y
1151
Mike Rapoporta0113a92007-11-25 08:55:34 +01001152config PCI_HOST_ITE8152
1153 bool
1154 depends on PCI && MACH_ARMCORE
1155 default y
1156 select DMABOUNCE
1157
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158source "drivers/pci/Kconfig"
1159
1160source "drivers/pcmcia/Kconfig"
1161
1162endmenu
1163
1164menu "Kernel Features"
1165
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001166source "kernel/time/Kconfig"
1167
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168config SMP
1169 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001170 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Russell King59ac59f2010-02-11 21:56:07 +00001171 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
Russell King0b019a42010-08-10 23:17:52 +01001172 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Russell Kingbc282482009-05-17 18:58:34 +01001173 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001174 select USE_GENERIC_SMP_HELPERS
Russell King0b019a42010-08-10 23:17:52 +01001175 select HAVE_ARM_SCU if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 ||\
1176 ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177 help
1178 This enables support for systems with more than one CPU. If you have
1179 a system with only one CPU, like most personal computers, say N. If
1180 you have a system with more than one CPU, say Y.
1181
1182 If you say N here, the kernel will run on single and multiprocessor
1183 machines, but will use only one CPU of a multiprocessor machine. If
1184 you say Y here, the kernel will run on many, but not all, single
1185 processor machines. On a single processor machine, the kernel will
1186 run faster if you say N here.
1187
Adrian Bunk03502fa2008-02-03 15:50:21 +02001188 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1190 <http://www.linuxdoc.org/docs.html#howto>.
1191
1192 If you don't know what to do here, say N.
1193
Russell Kinga8cbcd92009-05-16 11:51:14 +01001194config HAVE_ARM_SCU
1195 bool
1196 depends on SMP
1197 help
1198 This option enables support for the ARM system coherency unit
1199
Russell Kingf32f4ce2009-05-16 12:14:21 +01001200config HAVE_ARM_TWD
1201 bool
1202 depends on SMP
1203 help
1204 This options enables support for the ARM timer and watchdog unit
1205
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001206choice
1207 prompt "Memory split"
1208 default VMSPLIT_3G
1209 help
1210 Select the desired split between kernel and user memory.
1211
1212 If you are not absolutely sure what you are doing, leave this
1213 option alone!
1214
1215 config VMSPLIT_3G
1216 bool "3G/1G user/kernel split"
1217 config VMSPLIT_2G
1218 bool "2G/2G user/kernel split"
1219 config VMSPLIT_1G
1220 bool "1G/3G user/kernel split"
1221endchoice
1222
1223config PAGE_OFFSET
1224 hex
1225 default 0x40000000 if VMSPLIT_1G
1226 default 0x80000000 if VMSPLIT_2G
1227 default 0xC0000000
1228
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229config NR_CPUS
1230 int "Maximum number of CPUs (2-32)"
1231 range 2 32
1232 depends on SMP
1233 default "4"
1234
Russell Kinga054a812005-11-02 22:24:33 +00001235config HOTPLUG_CPU
1236 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1237 depends on SMP && HOTPLUG && EXPERIMENTAL
1238 help
1239 Say Y here to experiment with turning CPUs off and on. CPUs
1240 can be controlled through /sys/devices/system/cpu.
1241
Russell King37ee16a2005-11-08 19:08:05 +00001242config LOCAL_TIMERS
1243 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001244 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Will Deaconbde28b82010-07-09 13:52:09 +01001245 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Russell King0b019a42010-08-10 23:17:52 +01001246 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Russell King37ee16a2005-11-08 19:08:05 +00001247 default y
Russell King0b019a42010-08-10 23:17:52 +01001248 select HAVE_ARM_TWD if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 || \
1249 ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS
Russell King37ee16a2005-11-08 19:08:05 +00001250 help
1251 Enable support for local timers on SMP platforms, rather then the
1252 legacy IPI broadcast method. Local timers allows the system
1253 accounting to be spread across the timer interval, preventing a
1254 "thundering herd" at every timer tick.
1255
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001256source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001257
Russell Kingf8065812006-03-02 22:41:59 +00001258config HZ
1259 int
Russell King21924822010-08-09 14:07:19 +01001260 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || \
1261 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001262 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001263 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001264 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001265 default 100
1266
Catalin Marinas16c79652009-07-24 12:33:02 +01001267config THUMB2_KERNEL
1268 bool "Compile the kernel in Thumb-2 mode"
1269 depends on CPU_V7 && EXPERIMENTAL
1270 select AEABI
1271 select ARM_ASM_UNIFIED
1272 help
1273 By enabling this option, the kernel will be compiled in
1274 Thumb-2 mode. A compiler/assembler that understand the unified
1275 ARM-Thumb syntax is needed.
1276
1277 If unsure, say N.
1278
Catalin Marinas0becb082009-07-24 12:32:53 +01001279config ARM_ASM_UNIFIED
1280 bool
1281
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001282config AEABI
1283 bool "Use the ARM EABI to compile the kernel"
1284 help
1285 This option allows for the kernel to be compiled using the latest
1286 ARM ABI (aka EABI). This is only useful if you are using a user
1287 space environment that is also compiled with EABI.
1288
1289 Since there are major incompatibilities between the legacy ABI and
1290 EABI, especially with regard to structure member alignment, this
1291 option also changes the kernel syscall calling convention to
1292 disambiguate both ABIs and allow for backward compatibility support
1293 (selected with CONFIG_OABI_COMPAT).
1294
1295 To use this you need GCC version 4.0.0 or later.
1296
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001297config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001298 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001299 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001300 default y
1301 help
1302 This option preserves the old syscall interface along with the
1303 new (ARM EABI) one. It also provides a compatibility layer to
1304 intercept syscalls that have structure arguments which layout
1305 in memory differs between the legacy ABI and the new ARM EABI
1306 (only for non "thumb" binaries). This option adds a tiny
1307 overhead to all syscalls and produces a slightly larger kernel.
1308 If you know you'll be using only pure EABI user space then you
1309 can say N here. If this option is not selected and you attempt
1310 to execute a legacy ABI binary then the result will be
1311 UNPREDICTABLE (in fact it can be predicted that it won't work
1312 at all). If in doubt say Y.
1313
Mel Gormaneb335752009-05-13 17:34:48 +01001314config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001315 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001316
Russell King05944d72006-11-30 20:43:51 +00001317config ARCH_SPARSEMEM_ENABLE
1318 bool
1319
Russell King07a2f732008-10-01 21:39:58 +01001320config ARCH_SPARSEMEM_DEFAULT
1321 def_bool ARCH_SPARSEMEM_ENABLE
1322
Russell King05944d72006-11-30 20:43:51 +00001323config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001324 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001325
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001326config HIGHMEM
1327 bool "High Memory Support (EXPERIMENTAL)"
1328 depends on MMU && EXPERIMENTAL
1329 help
1330 The address space of ARM processors is only 4 Gigabytes large
1331 and it has to accommodate user address space, kernel address
1332 space as well as some memory mapped IO. That means that, if you
1333 have a large amount of physical memory and/or IO, not all of the
1334 memory can be "permanently mapped" by the kernel. The physical
1335 memory that is not permanently mapped is called "high memory".
1336
1337 Depending on the selected kernel/user memory split, minimum
1338 vmalloc space and actual amount of RAM, you may not need this
1339 option which should result in a slightly faster kernel.
1340
1341 If unsure, say n.
1342
Russell King65cec8e2009-08-17 20:02:06 +01001343config HIGHPTE
1344 bool "Allocate 2nd-level pagetables from highmem"
1345 depends on HIGHMEM
1346 depends on !OUTER_CACHE
1347
Jamie Iles1b8873a2010-02-02 20:25:44 +01001348config HW_PERF_EVENTS
1349 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001350 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001351 default y
1352 help
1353 Enable hardware performance counter support for perf events. If
1354 disabled, perf events will use software events only.
1355
eric miao354e6f72010-06-25 09:46:09 +01001356config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001357 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001358 help
1359 This enables support for sparse irqs. This is useful in general
1360 as most CPUs have a fairly sparse array of IRQ vectors, which
1361 the irq_desc then maps directly on to. Systems with a high
1362 number of off-chip IRQs will want to treat this as
1363 experimental until they have been independently verified.
1364
Dave Hansen3f22ab22005-06-23 00:07:43 -07001365source "mm/Kconfig"
1366
Magnus Dammc1b2d972010-07-05 10:00:11 +01001367config FORCE_MAX_ZONEORDER
1368 int "Maximum zone order" if ARCH_SHMOBILE
1369 range 11 64 if ARCH_SHMOBILE
1370 default "9" if SA1111
1371 default "11"
1372 help
1373 The kernel memory allocator divides physically contiguous memory
1374 blocks into "zones", where each zone is a power of two number of
1375 pages. This option selects the largest power of two that the kernel
1376 keeps in the memory allocator. If you need to allocate very large
1377 blocks of physically contiguous memory, then you may need to
1378 increase this value.
1379
1380 This config option is actually maximum order plus one. For example,
1381 a value of 11 means that the largest free memory block is 2^10 pages.
1382
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383config LEDS
1384 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001385 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001386 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1388 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001389 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001390 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042fb2009-05-30 13:56:13 +01001391 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001392 help
1393 If you say Y here, the LEDs on your machine will be used
1394 to provide useful information about your current system status.
1395
1396 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1397 be able to select which LEDs are active using the options below. If
1398 you are compiling a kernel for the EBSA-110 or the LART however, the
1399 red LED will simply flash regularly to indicate that the system is
1400 still functional. It is safe to say Y here if you have a CATS
1401 system, but the driver will do nothing.
1402
1403config LEDS_TIMER
1404 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001405 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1406 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001407 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001408 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409 default y if ARCH_EBSA110
1410 help
1411 If you say Y here, one of the system LEDs (the green one on the
1412 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1413 will flash regularly to indicate that the system is still
1414 operational. This is mainly useful to kernel hackers who are
1415 debugging unstable kernels.
1416
1417 The LART uses the same LED for both Timer LED and CPU usage LED
1418 functions. You may choose to use both, but the Timer LED function
1419 will overrule the CPU usage LED.
1420
1421config LEDS_CPU
1422 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001423 !ARCH_OMAP) \
1424 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1425 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426 depends on LEDS
1427 help
1428 If you say Y here, the red LED will be used to give a good real
1429 time indication of CPU usage, by lighting whenever the idle task
1430 is not currently executing.
1431
1432 The LART uses the same LED for both Timer LED and CPU usage LED
1433 functions. You may choose to use both, but the Timer LED function
1434 will overrule the CPU usage LED.
1435
1436config ALIGNMENT_TRAP
1437 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001438 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001440 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001442 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1444 address divisible by 4. On 32-bit ARM processors, these non-aligned
1445 fetch/store instructions will be emulated in software if you say
1446 here, which has a severe performance impact. This is necessary for
1447 correct operation of some network protocols. With an IP-only
1448 configuration it is safe to say N, otherwise say Y.
1449
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001450config UACCESS_WITH_MEMCPY
1451 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1452 depends on MMU && EXPERIMENTAL
1453 default y if CPU_FEROCEON
1454 help
1455 Implement faster copy_to_user and clear_user methods for CPU
1456 cores where a 8-word STM instruction give significantly higher
1457 memory write throughput than a sequence of individual 32bit stores.
1458
1459 A possible side effect is a slight increase in scheduling latency
1460 between threads sharing the same address space if they invoke
1461 such copy operations with large buffers.
1462
1463 However, if the CPU data cache is using a write-allocate mode,
1464 this option is unlikely to provide any performance gain.
1465
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001466config SECCOMP
1467 bool
1468 prompt "Enable seccomp to safely compute untrusted bytecode"
1469 ---help---
1470 This kernel feature is useful for number crunching applications
1471 that may need to compute untrusted bytecode during their
1472 execution. By using pipes or other transports made available to
1473 the process as file descriptors supporting the read/write
1474 syscalls, it's possible to isolate those applications in
1475 their own address space using seccomp. Once seccomp is
1476 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1477 and the task is only allowed to execute a few safe syscalls
1478 defined by each seccomp mode.
1479
Nicolas Pitrec743f382010-05-24 23:55:42 -04001480config CC_STACKPROTECTOR
1481 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1482 help
1483 This option turns on the -fstack-protector GCC feature. This
1484 feature puts, at the beginning of functions, a canary value on
1485 the stack just before the return address, and validates
1486 the value just before actually returning. Stack based buffer
1487 overflows (that need to overwrite this return address) now also
1488 overwrite the canary, which gets detected and the attack is then
1489 neutralized via a kernel panic.
1490 This feature requires gcc version 4.2 or above.
1491
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001492config DEPRECATED_PARAM_STRUCT
1493 bool "Provide old way to pass kernel parameters"
1494 help
1495 This was deprecated in 2001 and announced to live on for 5 years.
1496 Some old boot loaders still use this way.
1497
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498endmenu
1499
1500menu "Boot options"
1501
1502# Compressed boot loader in ROM. Yes, we really want to ask about
1503# TEXT and BSS so we preserve their values in the config files.
1504config ZBOOT_ROM_TEXT
1505 hex "Compressed ROM boot loader base address"
1506 default "0"
1507 help
1508 The physical address at which the ROM-able zImage is to be
1509 placed in the target. Platforms which normally make use of
1510 ROM-able zImage formats normally set this to a suitable
1511 value in their defconfig file.
1512
1513 If ZBOOT_ROM is not enabled, this has no effect.
1514
1515config ZBOOT_ROM_BSS
1516 hex "Compressed ROM boot loader BSS address"
1517 default "0"
1518 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001519 The base address of an area of read/write memory in the target
1520 for the ROM-able zImage which must be available while the
1521 decompressor is running. It must be large enough to hold the
1522 entire decompressed kernel plus an additional 128 KiB.
1523 Platforms which normally make use of ROM-able zImage formats
1524 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001525
1526 If ZBOOT_ROM is not enabled, this has no effect.
1527
1528config ZBOOT_ROM
1529 bool "Compressed boot loader in ROM/flash"
1530 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1531 help
1532 Say Y here if you intend to execute your compressed kernel image
1533 (zImage) directly from ROM or flash. If unsure, say N.
1534
1535config CMDLINE
1536 string "Default kernel command string"
1537 default ""
1538 help
1539 On some architectures (EBSA110 and CATS), there is currently no way
1540 for the boot loader to pass arguments to the kernel. For these
1541 architectures, you should supply some command-line options at build
1542 time by entering them here. As a minimum, you should specify the
1543 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1544
Alexander Holler92d20402010-02-16 19:04:53 +01001545config CMDLINE_FORCE
1546 bool "Always use the default kernel command string"
1547 depends on CMDLINE != ""
1548 help
1549 Always use the default kernel command string, even if the boot
1550 loader passes other arguments to the kernel.
1551 This is useful if you cannot or don't want to change the
1552 command-line options your boot loader passes to the kernel.
1553
1554 If unsure, say N.
1555
Linus Torvalds1da177e2005-04-16 15:20:36 -07001556config XIP_KERNEL
1557 bool "Kernel Execute-In-Place from ROM"
1558 depends on !ZBOOT_ROM
1559 help
1560 Execute-In-Place allows the kernel to run from non-volatile storage
1561 directly addressable by the CPU, such as NOR flash. This saves RAM
1562 space since the text section of the kernel is not loaded from flash
1563 to RAM. Read-write sections, such as the data section and stack,
1564 are still copied to RAM. The XIP kernel is not compressed since
1565 it has to run directly from flash, so it will take more space to
1566 store it. The flash address used to link the kernel object files,
1567 and for storing it, is configuration dependent. Therefore, if you
1568 say Y here, you must know the proper physical address where to
1569 store the kernel image depending on your own flash memory usage.
1570
1571 Also note that the make target becomes "make xipImage" rather than
1572 "make zImage" or "make Image". The final kernel binary to put in
1573 ROM memory will be arch/arm/boot/xipImage.
1574
1575 If unsure, say N.
1576
1577config XIP_PHYS_ADDR
1578 hex "XIP Kernel Physical Location"
1579 depends on XIP_KERNEL
1580 default "0x00080000"
1581 help
1582 This is the physical address in your flash memory the kernel will
1583 be linked for and stored to. This address is dependent on your
1584 own flash usage.
1585
Richard Purdiec587e4a2007-02-06 21:29:00 +01001586config KEXEC
1587 bool "Kexec system call (EXPERIMENTAL)"
1588 depends on EXPERIMENTAL
1589 help
1590 kexec is a system call that implements the ability to shutdown your
1591 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001592 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001593 you can start any kernel with it, not just Linux.
1594
1595 It is an ongoing process to be certain the hardware in a machine
1596 is properly shutdown, so do not be surprised if this code does not
1597 initially work for you. It may help to enable device hotplugging
1598 support.
1599
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001600config ATAGS_PROC
1601 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001602 depends on KEXEC
1603 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001604 help
1605 Should the atags used to boot the kernel be exported in an "atags"
1606 file in procfs. Useful with kexec.
1607
Eric Miaoe69edc792010-07-05 15:56:50 +02001608config AUTO_ZRELADDR
1609 bool "Auto calculation of the decompressed kernel image address"
1610 depends on !ZBOOT_ROM && !ARCH_U300
1611 help
1612 ZRELADDR is the physical address where the decompressed kernel
1613 image will be placed. If AUTO_ZRELADDR is selected, the address
1614 will be determined at run-time by masking the current IP with
1615 0xf8000000. This assumes the zImage being placed in the first 128MB
1616 from start of memory.
1617
Linus Torvalds1da177e2005-04-16 15:20:36 -07001618endmenu
1619
Russell Kingac9d7ef2008-08-18 17:26:00 +01001620menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001621
Ben Dooks89c52ed2009-07-30 23:23:24 +01001622if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001623
1624source "drivers/cpufreq/Kconfig"
1625
1626config CPU_FREQ_SA1100
1627 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001628
1629config CPU_FREQ_SA1110
1630 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001631
1632config CPU_FREQ_INTEGRATOR
1633 tristate "CPUfreq driver for ARM Integrator CPUs"
1634 depends on ARCH_INTEGRATOR && CPU_FREQ
1635 default y
1636 help
1637 This enables the CPUfreq driver for ARM Integrator CPUs.
1638
1639 For details, take a look at <file:Documentation/cpu-freq>.
1640
1641 If in doubt, say Y.
1642
Russell King9e2697f2007-12-14 13:30:14 +00001643config CPU_FREQ_PXA
1644 bool
1645 depends on CPU_FREQ && ARCH_PXA && PXA25x
1646 default y
1647 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1648
Mark Brownb3748dd2009-06-15 11:23:20 +01001649config CPU_FREQ_S3C64XX
1650 bool "CPUfreq support for Samsung S3C64XX CPUs"
1651 depends on CPU_FREQ && CPU_S3C6410
1652
Ben Dooks9d56c022009-07-30 23:23:25 +01001653config CPU_FREQ_S3C
1654 bool
1655 help
1656 Internal configuration node for common cpufreq on Samsung SoC
1657
1658config CPU_FREQ_S3C24XX
1659 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1660 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1661 select CPU_FREQ_S3C
1662 help
1663 This enables the CPUfreq driver for the Samsung S3C24XX family
1664 of CPUs.
1665
1666 For details, take a look at <file:Documentation/cpu-freq>.
1667
1668 If in doubt, say N.
1669
1670config CPU_FREQ_S3C24XX_PLL
1671 bool "Support CPUfreq changing of PLL frequency"
1672 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1673 help
1674 Compile in support for changing the PLL frequency from the
1675 S3C24XX series CPUfreq driver. The PLL takes time to settle
1676 after a frequency change, so by default it is not enabled.
1677
1678 This also means that the PLL tables for the selected CPU(s) will
1679 be built which may increase the size of the kernel image.
1680
1681config CPU_FREQ_S3C24XX_DEBUG
1682 bool "Debug CPUfreq Samsung driver core"
1683 depends on CPU_FREQ_S3C24XX
1684 help
1685 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1686
1687config CPU_FREQ_S3C24XX_IODEBUG
1688 bool "Debug CPUfreq Samsung driver IO timing"
1689 depends on CPU_FREQ_S3C24XX
1690 help
1691 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1692
Ben Dookse6d197a2009-07-30 23:23:42 +01001693config CPU_FREQ_S3C24XX_DEBUGFS
1694 bool "Export debugfs for CPUFreq"
1695 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1696 help
1697 Export status information via debugfs.
1698
Linus Torvalds1da177e2005-04-16 15:20:36 -07001699endif
1700
Russell Kingac9d7ef2008-08-18 17:26:00 +01001701source "drivers/cpuidle/Kconfig"
1702
1703endmenu
1704
Linus Torvalds1da177e2005-04-16 15:20:36 -07001705menu "Floating point emulation"
1706
1707comment "At least one emulation must be selected"
1708
1709config FPE_NWFPE
1710 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001711 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001712 ---help---
1713 Say Y to include the NWFPE floating point emulator in the kernel.
1714 This is necessary to run most binaries. Linux does not currently
1715 support floating point hardware so you need to say Y here even if
1716 your machine has an FPA or floating point co-processor podule.
1717
1718 You may say N here if you are going to load the Acorn FPEmulator
1719 early in the bootup.
1720
1721config FPE_NWFPE_XP
1722 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001723 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724 help
1725 Say Y to include 80-bit support in the kernel floating-point
1726 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1727 Note that gcc does not generate 80-bit operations by default,
1728 so in most cases this option only enlarges the size of the
1729 floating point emulator without any good reason.
1730
1731 You almost surely want to say N here.
1732
1733config FPE_FASTFPE
1734 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001735 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736 ---help---
1737 Say Y here to include the FAST floating point emulator in the kernel.
1738 This is an experimental much faster emulator which now also has full
1739 precision for the mantissa. It does not support any exceptions.
1740 It is very simple, and approximately 3-6 times faster than NWFPE.
1741
1742 It should be sufficient for most programs. It may be not suitable
1743 for scientific calculations, but you have to check this for yourself.
1744 If you do not feel you need a faster FP emulation you should better
1745 choose NWFPE.
1746
1747config VFP
1748 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001749 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750 help
1751 Say Y to include VFP support code in the kernel. This is needed
1752 if your hardware includes a VFP unit.
1753
1754 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1755 release notes and additional status information.
1756
1757 Say N if your target does not have VFP hardware.
1758
Catalin Marinas25ebee02007-09-25 15:22:24 +01001759config VFPv3
1760 bool
1761 depends on VFP
1762 default y if CPU_V7
1763
Catalin Marinasb5872db2008-01-10 19:16:17 +01001764config NEON
1765 bool "Advanced SIMD (NEON) Extension support"
1766 depends on VFPv3 && CPU_V7
1767 help
1768 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1769 Extension.
1770
Linus Torvalds1da177e2005-04-16 15:20:36 -07001771endmenu
1772
1773menu "Userspace binary formats"
1774
1775source "fs/Kconfig.binfmt"
1776
1777config ARTHUR
1778 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001779 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001780 help
1781 Say Y here to include the kernel code necessary if you want to run
1782 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1783 experimental; if this sounds frightening, say N and sleep in peace.
1784 You can also say M here to compile this support as a module (which
1785 will be called arthur).
1786
1787endmenu
1788
1789menu "Power management options"
1790
Russell Kingeceab4a2005-11-15 11:31:41 +00001791source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792
Johannes Bergf4cb5702007-12-08 02:14:00 +01001793config ARCH_SUSPEND_POSSIBLE
1794 def_bool y
1795
Linus Torvalds1da177e2005-04-16 15:20:36 -07001796endmenu
1797
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001798source "net/Kconfig"
1799
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001800source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801
1802source "fs/Kconfig"
1803
Linus Torvalds1da177e2005-04-16 15:20:36 -07001804source "arch/arm/Kconfig.debug"
1805
1806source "security/Kconfig"
1807
1808source "crypto/Kconfig"
1809
1810source "lib/Kconfig"