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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 Buytenhek7ae1f7e2006-09-18 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 Buytenhek7ae1f7e2006-09-18 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
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400513 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100514 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
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800591 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000592 help
eric miao2c8086a2007-09-11 19:13:17 -0700593 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594
Russell King788c9702009-04-26 14:21:59 +0100595config ARCH_MSM
596 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500597 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800598 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700599 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800600 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800601 Support for Qualcomm MSM/QSD based systems. This runs on the
602 apps processor of the MSM/QSD and depends on a shared memory
603 interface to the modem processor which runs the baseband
604 stack and controls some vital subsystems
605 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800606
Magnus Dammc793c1b2010-02-05 11:14:49 +0000607config ARCH_SHMOBILE
608 bool "Renesas SH-Mobile"
609 help
610 Support for Renesas's SH-Mobile ARM platforms
611
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612config ARCH_RPC
613 bool "RiscPC"
614 select ARCH_ACORN
615 select FIQ
616 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100617 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100618 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000619 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000620 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100621 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000622 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623 help
624 On the Acorn Risc-PC, Linux can support the internal IDE disk and
625 CD-ROM interface, serial and parallel port, and the floppy drive.
626
627config ARCH_SA1100
628 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000629 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100630 select ISA
Russell King05944d72006-11-30 20:43:51 +0000631 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500632 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100633 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000634 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100635 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700636 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100637 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700638 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000639 help
640 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641
642config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900643 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800644 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100645 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700646 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000647 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900648 select HAVE_S3C2410_I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700649 help
650 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
651 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000652 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653
Ben Dooks63b1f512010-04-30 16:32:26 +0900654 Note, the S3C2416 and the S3C2450 are so close that they even share
655 the same SoC ID code. This means that there is no seperate machine
656 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
657
Ben Dooksa08ab632008-10-21 14:06:39 +0100658config ARCH_S3C64XX
659 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000660 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900661 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900662 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100663 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900664 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000665 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100666 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900667 select ARCH_REQUIRE_GPIOLIB
668 select SAMSUNG_CLKSRC
669 select SAMSUNG_IRQ_VIC_TIMER
670 select SAMSUNG_IRQ_UART
671 select S3C_GPIO_TRACK
672 select S3C_GPIO_PULL_UPDOWN
673 select S3C_GPIO_CFG_S3C24XX
674 select S3C_GPIO_CFG_S3C64XX
675 select S3C_DEV_NAND
676 select USB_ARCH_HAS_OHCI
677 select SAMSUNG_GPIOLIB_4BIT
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900678 select HAVE_S3C2410_I2C
Banajit Goswamid8653d92010-07-29 22:22:40 +0900679 select HAVE_S3C2410_WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100680 help
681 Samsung S3C64XX series based systems
682
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900683config ARCH_S5P6440
684 bool "Samsung S5P6440"
685 select CPU_V6
686 select GENERIC_GPIO
687 select HAVE_CLK
Banajit Goswamid8653d92010-07-29 22:22:40 +0900688 select HAVE_S3C2410_WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900689 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900690 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900691 select HAVE_S3C_RTC
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900692 help
693 Samsung S5P6440 CPU based systems
694
Kukjin Kim550db7f2010-01-29 10:19:26 +0900695config ARCH_S5P6442
696 bool "Samsung S5P6442"
697 select CPU_V6
698 select GENERIC_GPIO
699 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900700 select ARCH_USES_GETTIMEOFFSET
Banajit Goswamid8653d92010-07-29 22:22:40 +0900701 select HAVE_S3C2410_WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900702 help
703 Samsung S5P6442 CPU based systems
704
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200705config ARCH_S5PC100
706 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900707 select GENERIC_GPIO
708 select HAVE_CLK
709 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100710 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900711 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900712 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900713 select HAVE_S3C_RTC
Banajit Goswamid8653d92010-07-29 22:22:40 +0900714 select HAVE_S3C2410_WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900715 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200716 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900717
Kukjin Kim170f4e42010-02-24 16:40:44 +0900718config ARCH_S5PV210
719 bool "Samsung S5PV210/S5PC110"
720 select CPU_V7
721 select GENERIC_GPIO
722 select HAVE_CLK
723 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900724 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900725 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900726 select HAVE_S3C_RTC
Banajit Goswamid8653d92010-07-29 22:22:40 +0900727 select HAVE_S3C2410_WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900728 help
729 Samsung S5PV210/S5PC110 series based systems
730
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900731config ARCH_S5PV310
732 bool "Samsung S5PV310/S5PC210"
733 select CPU_V7
734 select GENERIC_GPIO
735 select HAVE_CLK
736 select GENERIC_CLOCKEVENTS
737 help
738 Samsung S5PV310 series based systems
739
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740config ARCH_SHARK
741 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000742 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100743 select ISA
744 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100745 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100746 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000747 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000748 help
749 Support for the StrongARM based Digital DNARD machine, also known
750 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751
752config ARCH_LH7A40X
753 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000754 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100755 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000756 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757 help
758 Say Y here for systems based on one of the Sharp LH7A40X
759 System on a Chip processors. These CPUs include an ARM922T
760 core with a wide array of integrated devices for
761 hand-held and low-power applications.
762
Linus Walleijd98aac72009-04-27 10:21:46 +0100763config ARCH_U300
764 bool "ST-Ericsson U300 Series"
765 depends on MMU
766 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100767 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100768 select ARM_AMBA
769 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100770 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100771 select COMMON_CLKDEV
772 select GENERIC_GPIO
773 help
774 Support for ST-Ericsson U300 series mobile platforms.
775
Russell Kingccf50e22010-03-15 19:03:06 +0000776config ARCH_U8500
777 bool "ST-Ericsson U8500 Series"
778 select CPU_V7
779 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000780 select GENERIC_CLOCKEVENTS
781 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100782 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000783 help
784 Support for ST-Ericsson's Ux500 architecture
785
786config ARCH_NOMADIK
787 bool "STMicroelectronics Nomadik"
788 select ARM_AMBA
789 select ARM_VIC
790 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000791 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000792 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000793 select ARCH_REQUIRE_GPIOLIB
794 help
795 Support for the Nomadik platform by ST-Ericsson
796
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100797config ARCH_DAVINCI
798 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100799 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700800 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100801 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700802 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700803 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700804 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530805 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100806 help
807 Support for TI's DaVinci platform.
808
Russell King3b938be2007-05-12 11:25:44 +0100809config ARCH_OMAP
810 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700811 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700812 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100813 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700814 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800815 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100816 help
817 Support for TI's OMAP platform (OMAP1 and OMAP2).
818
viresh kumarcee37e52010-04-01 12:31:05 +0100819config PLAT_SPEAR
820 bool "ST SPEAr"
821 select ARM_AMBA
822 select ARCH_REQUIRE_GPIOLIB
823 select COMMON_CLKDEV
824 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100825 select HAVE_CLK
826 help
827 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
828
Linus Torvalds1da177e2005-04-16 15:20:36 -0700829endchoice
830
Russell Kingccf50e22010-03-15 19:03:06 +0000831#
832# This is sorted alphabetically by mach-* pathname. However, plat-*
833# Kconfigs may be included either alphabetically (according to the
834# plat- suffix) or along side the corresponding mach-* source.
835#
Russell King95b8f202010-01-14 11:43:54 +0000836source "arch/arm/mach-aaec2000/Kconfig"
837
838source "arch/arm/mach-at91/Kconfig"
839
840source "arch/arm/mach-bcmring/Kconfig"
841
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842source "arch/arm/mach-clps711x/Kconfig"
843
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300844source "arch/arm/mach-cns3xxx/Kconfig"
845
Russell King95b8f202010-01-14 11:43:54 +0000846source "arch/arm/mach-davinci/Kconfig"
847
848source "arch/arm/mach-dove/Kconfig"
849
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000850source "arch/arm/mach-ep93xx/Kconfig"
851
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852source "arch/arm/mach-footbridge/Kconfig"
853
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200854source "arch/arm/mach-gemini/Kconfig"
855
Russell King95b8f202010-01-14 11:43:54 +0000856source "arch/arm/mach-h720x/Kconfig"
857
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858source "arch/arm/mach-integrator/Kconfig"
859
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100860source "arch/arm/mach-iop32x/Kconfig"
861
862source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863
Dan Williams285f5fa2006-12-07 02:59:39 +0100864source "arch/arm/mach-iop13xx/Kconfig"
865
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866source "arch/arm/mach-ixp4xx/Kconfig"
867
868source "arch/arm/mach-ixp2000/Kconfig"
869
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100870source "arch/arm/mach-ixp23xx/Kconfig"
871
Russell King95b8f202010-01-14 11:43:54 +0000872source "arch/arm/mach-kirkwood/Kconfig"
873
874source "arch/arm/mach-ks8695/Kconfig"
875
876source "arch/arm/mach-lh7a40x/Kconfig"
877
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200878source "arch/arm/mach-loki/Kconfig"
879
Kevin Wells40805942010-07-27 08:49:04 -0700880source "arch/arm/mach-lpc32xx/Kconfig"
881
Russell King95b8f202010-01-14 11:43:54 +0000882source "arch/arm/mach-msm/Kconfig"
883
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200884source "arch/arm/mach-mv78xx0/Kconfig"
885
Russell King95b8f202010-01-14 11:43:54 +0000886source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
Russell King95b8f202010-01-14 11:43:54 +0000888source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800889
Russell King95b8f202010-01-14 11:43:54 +0000890source "arch/arm/mach-nomadik/Kconfig"
891source "arch/arm/plat-nomadik/Kconfig"
892
893source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894
Russell Kingd91a8912010-02-04 18:13:17 +0000895source "arch/arm/mach-nuc93x/Kconfig"
896
Tony Lindgrend48af152005-07-10 19:58:17 +0100897source "arch/arm/plat-omap/Kconfig"
898
899source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900
Tony Lindgren1dbae812005-11-10 14:26:51 +0000901source "arch/arm/mach-omap2/Kconfig"
902
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400903source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400904
Russell King95b8f202010-01-14 11:43:54 +0000905source "arch/arm/mach-pxa/Kconfig"
906source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700907
Russell King95b8f202010-01-14 11:43:54 +0000908source "arch/arm/mach-mmp/Kconfig"
909
910source "arch/arm/mach-realview/Kconfig"
911
912source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300913
Ben Dookscf383672009-11-10 00:14:58 +0000914source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100915source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900916source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100917
viresh kumarcee37e52010-04-01 12:31:05 +0100918source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100919
920if ARCH_S3C2410
921source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100923source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900924source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100925source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100926source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100927endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928
Ben Dooksa08ab632008-10-21 14:06:39 +0100929if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900930source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100931endif
932
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900933source "arch/arm/mach-s5p6440/Kconfig"
934
Kukjin Kim550db7f2010-01-29 10:19:26 +0900935source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100936
Byungho Min5a7652f2009-06-23 21:39:42 +0900937source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900938
Kukjin Kim170f4e42010-02-24 16:40:44 +0900939source "arch/arm/mach-s5pv210/Kconfig"
940
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900941source "arch/arm/mach-s5pv310/Kconfig"
942
Russell King882d01f2010-03-02 23:40:15 +0000943source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944
Russell King882d01f2010-03-02 23:40:15 +0000945source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800946
Erik Gillingc5f80062010-01-21 16:53:02 -0800947source "arch/arm/mach-tegra/Kconfig"
948
Russell King95b8f202010-01-14 11:43:54 +0000949source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100950
Russell King95b8f202010-01-14 11:43:54 +0000951source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952
953source "arch/arm/mach-versatile/Kconfig"
954
Russell Kingceade892010-02-11 21:44:53 +0000955source "arch/arm/mach-vexpress/Kconfig"
956
wanzongshun7ec80dd2008-12-03 03:55:38 +0100957source "arch/arm/mach-w90x900/Kconfig"
958
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959# Definitions to make life easier
960config ARCH_ACORN
961 bool
962
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100963config PLAT_IOP
964 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700965 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100966
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400967config PLAT_ORION
968 bool
969
Eric Miaobd5ce432009-01-20 12:06:01 +0800970config PLAT_PXA
971 bool
972
Russell Kingf4b8b312010-01-14 12:48:06 +0000973config PLAT_VERSATILE
974 bool
975
Russell Kinge3887712010-01-14 13:30:16 +0000976config ARM_TIMER_SP804
977 bool
978
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979source arch/arm/mm/Kconfig
980
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100981config IWMMXT
982 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800983 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
984 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100985 help
986 Enable support for iWMMXt context switching at run time if
987 running on a CPU that supports it.
988
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
990config XSCALE_PMU
991 bool
992 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
993 default y
994
Jamie Iles0f4f0672010-02-02 20:23:15 +0100995config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +0100996 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
997 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +0100998 default y
999 bool
1000
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001001if !MMU
1002source "arch/arm/Kconfig-nommu"
1003endif
1004
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001005config ARM_ERRATA_411920
1006 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
1007 depends on CPU_V6 && !SMP
1008 help
1009 Invalidation of the Instruction Cache operation can
1010 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1011 It does not affect the MPCore. This option enables the ARM Ltd.
1012 recommended workaround.
1013
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001014config ARM_ERRATA_430973
1015 bool "ARM errata: Stale prediction on replaced interworking branch"
1016 depends on CPU_V7
1017 help
1018 This option enables the workaround for the 430973 Cortex-A8
1019 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1020 interworking branch is replaced with another code sequence at the
1021 same virtual address, whether due to self-modifying code or virtual
1022 to physical address re-mapping, Cortex-A8 does not recover from the
1023 stale interworking branch prediction. This results in Cortex-A8
1024 executing the new code sequence in the incorrect ARM or Thumb state.
1025 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1026 and also flushes the branch target cache at every context switch.
1027 Note that setting specific bits in the ACTLR register may not be
1028 available in non-secure mode.
1029
Catalin Marinas855c5512009-04-30 17:06:15 +01001030config ARM_ERRATA_458693
1031 bool "ARM errata: Processor deadlock when a false hazard is created"
1032 depends on CPU_V7
1033 help
1034 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1035 erratum. For very specific sequences of memory operations, it is
1036 possible for a hazard condition intended for a cache line to instead
1037 be incorrectly associated with a different cache line. This false
1038 hazard might then cause a processor deadlock. The workaround enables
1039 the L1 caching of the NEON accesses and disables the PLD instruction
1040 in the ACTLR register. Note that setting specific bits in the ACTLR
1041 register may not be available in non-secure mode.
1042
Catalin Marinas0516e462009-04-30 17:06:20 +01001043config ARM_ERRATA_460075
1044 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1045 depends on CPU_V7
1046 help
1047 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1048 erratum. Any asynchronous access to the L2 cache may encounter a
1049 situation in which recent store transactions to the L2 cache are lost
1050 and overwritten with stale memory contents from external memory. The
1051 workaround disables the write-allocate mode for the L2 cache via the
1052 ACTLR register. Note that setting specific bits in the ACTLR register
1053 may not be available in non-secure mode.
1054
Will Deacon9f050272010-09-14 09:51:43 +01001055config ARM_ERRATA_742230
1056 bool "ARM errata: DMB operation may be faulty"
1057 depends on CPU_V7 && SMP
1058 help
1059 This option enables the workaround for the 742230 Cortex-A9
1060 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1061 between two write operations may not ensure the correct visibility
1062 ordering of the two writes. This workaround sets a specific bit in
1063 the diagnostic register of the Cortex-A9 which causes the DMB
1064 instruction to behave as a DSB, ensuring the correct behaviour of
1065 the two writes.
1066
Will Deacona672e992010-09-14 09:53:02 +01001067config ARM_ERRATA_742231
1068 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1069 depends on CPU_V7 && SMP
1070 help
1071 This option enables the workaround for the 742231 Cortex-A9
1072 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1073 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1074 accessing some data located in the same cache line, may get corrupted
1075 data due to bad handling of the address hazard when the line gets
1076 replaced from one of the CPUs at the same time as another CPU is
1077 accessing it. This workaround sets specific bits in the diagnostic
1078 register of the Cortex-A9 which reduces the linefill issuing
1079 capabilities of the processor.
1080
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001081config PL310_ERRATA_588369
1082 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1083 depends on CACHE_L2X0 && ARCH_OMAP4
1084 help
1085 The PL310 L2 cache controller implements three types of Clean &
1086 Invalidate maintenance operations: by Physical Address
1087 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1088 They are architecturally defined to behave as the execution of a
1089 clean operation followed immediately by an invalidate operation,
1090 both performing to the same memory location. This functionality
1091 is not correctly implemented in PL310 as clean lines are not
1092 invalidated as a result of these operations. Note that this errata
1093 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001094
1095config ARM_ERRATA_720789
1096 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1097 depends on CPU_V7 && SMP
1098 help
1099 This option enables the workaround for the 720789 Cortex-A9 (prior to
1100 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1101 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1102 As a consequence of this erratum, some TLB entries which should be
1103 invalidated are not, resulting in an incoherency in the system page
1104 tables. The workaround changes the TLB flushing routines to invalidate
1105 entries regardless of the ASID.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106endmenu
1107
1108source "arch/arm/common/Kconfig"
1109
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110menu "Bus support"
1111
1112config ARM_AMBA
1113 bool
1114
1115config ISA
1116 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001117 help
1118 Find out whether you have ISA slots on your motherboard. ISA is the
1119 name of a bus system, i.e. the way the CPU talks to the other stuff
1120 inside your box. Other bus systems are PCI, EISA, MicroChannel
1121 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1122 newer boards don't support it. If you have ISA, say Y, otherwise N.
1123
Russell King065909b2006-01-04 15:44:16 +00001124# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001125config ISA_DMA
1126 bool
Russell King065909b2006-01-04 15:44:16 +00001127 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128
Russell King065909b2006-01-04 15:44:16 +00001129# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001130config ISA_DMA_API
1131 bool
Al Viro5cae8412005-05-04 05:39:22 +01001132
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133config PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +04001134 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 -07001135 help
1136 Find out whether you have a PCI motherboard. PCI is the name of a
1137 bus system, i.e. the way the CPU talks to the other stuff inside
1138 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1139 VESA. If you have PCI, say Y, otherwise N.
1140
Anton Vorontsov52882172010-04-19 13:20:49 +01001141config PCI_DOMAINS
1142 bool
1143 depends on PCI
1144
Matthew Wilcox36e23592007-07-10 10:54:40 -06001145config PCI_SYSCALL
1146 def_bool PCI
1147
Linus Torvalds1da177e2005-04-16 15:20:36 -07001148# Select the host bridge type
1149config PCI_HOST_VIA82C505
1150 bool
1151 depends on PCI && ARCH_SHARK
1152 default y
1153
Mike Rapoporta0113a92007-11-25 08:55:34 +01001154config PCI_HOST_ITE8152
1155 bool
1156 depends on PCI && MACH_ARMCORE
1157 default y
1158 select DMABOUNCE
1159
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160source "drivers/pci/Kconfig"
1161
1162source "drivers/pcmcia/Kconfig"
1163
1164endmenu
1165
1166menu "Kernel Features"
1167
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001168source "kernel/time/Kconfig"
1169
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170config SMP
1171 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001172 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Russell King59ac59f2010-02-11 21:56:07 +00001173 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
Russell King0b019a42010-08-10 23:17:52 +01001174 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Russell Kingbc282482009-05-17 18:58:34 +01001175 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001176 select USE_GENERIC_SMP_HELPERS
Russell King0b019a42010-08-10 23:17:52 +01001177 select HAVE_ARM_SCU if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 ||\
1178 ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179 help
1180 This enables support for systems with more than one CPU. If you have
1181 a system with only one CPU, like most personal computers, say N. If
1182 you have a system with more than one CPU, say Y.
1183
1184 If you say N here, the kernel will run on single and multiprocessor
1185 machines, but will use only one CPU of a multiprocessor machine. If
1186 you say Y here, the kernel will run on many, but not all, single
1187 processor machines. On a single processor machine, the kernel will
1188 run faster if you say N here.
1189
Adrian Bunk03502fa2008-02-03 15:50:21 +02001190 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1192 <http://www.linuxdoc.org/docs.html#howto>.
1193
1194 If you don't know what to do here, say N.
1195
Russell Kinga8cbcd92009-05-16 11:51:14 +01001196config HAVE_ARM_SCU
1197 bool
1198 depends on SMP
1199 help
1200 This option enables support for the ARM system coherency unit
1201
Russell Kingf32f4ce2009-05-16 12:14:21 +01001202config HAVE_ARM_TWD
1203 bool
1204 depends on SMP
1205 help
1206 This options enables support for the ARM timer and watchdog unit
1207
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001208choice
1209 prompt "Memory split"
1210 default VMSPLIT_3G
1211 help
1212 Select the desired split between kernel and user memory.
1213
1214 If you are not absolutely sure what you are doing, leave this
1215 option alone!
1216
1217 config VMSPLIT_3G
1218 bool "3G/1G user/kernel split"
1219 config VMSPLIT_2G
1220 bool "2G/2G user/kernel split"
1221 config VMSPLIT_1G
1222 bool "1G/3G user/kernel split"
1223endchoice
1224
1225config PAGE_OFFSET
1226 hex
1227 default 0x40000000 if VMSPLIT_1G
1228 default 0x80000000 if VMSPLIT_2G
1229 default 0xC0000000
1230
Linus Torvalds1da177e2005-04-16 15:20:36 -07001231config NR_CPUS
1232 int "Maximum number of CPUs (2-32)"
1233 range 2 32
1234 depends on SMP
1235 default "4"
1236
Russell Kinga054a812005-11-02 22:24:33 +00001237config HOTPLUG_CPU
1238 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1239 depends on SMP && HOTPLUG && EXPERIMENTAL
1240 help
1241 Say Y here to experiment with turning CPUs off and on. CPUs
1242 can be controlled through /sys/devices/system/cpu.
1243
Russell King37ee16a2005-11-08 19:08:05 +00001244config LOCAL_TIMERS
1245 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001246 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Will Deaconbde28b82010-07-09 13:52:09 +01001247 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Russell King0b019a42010-08-10 23:17:52 +01001248 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Russell King37ee16a2005-11-08 19:08:05 +00001249 default y
Russell King0b019a42010-08-10 23:17:52 +01001250 select HAVE_ARM_TWD if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 || \
1251 ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS
Russell King37ee16a2005-11-08 19:08:05 +00001252 help
1253 Enable support for local timers on SMP platforms, rather then the
1254 legacy IPI broadcast method. Local timers allows the system
1255 accounting to be spread across the timer interval, preventing a
1256 "thundering herd" at every timer tick.
1257
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001258source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259
Russell Kingf8065812006-03-02 22:41:59 +00001260config HZ
1261 int
Russell King21924822010-08-09 14:07:19 +01001262 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || \
1263 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001264 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001265 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001266 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001267 default 100
1268
Catalin Marinas16c79652009-07-24 12:33:02 +01001269config THUMB2_KERNEL
1270 bool "Compile the kernel in Thumb-2 mode"
1271 depends on CPU_V7 && EXPERIMENTAL
1272 select AEABI
1273 select ARM_ASM_UNIFIED
1274 help
1275 By enabling this option, the kernel will be compiled in
1276 Thumb-2 mode. A compiler/assembler that understand the unified
1277 ARM-Thumb syntax is needed.
1278
1279 If unsure, say N.
1280
Catalin Marinas0becb082009-07-24 12:32:53 +01001281config ARM_ASM_UNIFIED
1282 bool
1283
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001284config AEABI
1285 bool "Use the ARM EABI to compile the kernel"
1286 help
1287 This option allows for the kernel to be compiled using the latest
1288 ARM ABI (aka EABI). This is only useful if you are using a user
1289 space environment that is also compiled with EABI.
1290
1291 Since there are major incompatibilities between the legacy ABI and
1292 EABI, especially with regard to structure member alignment, this
1293 option also changes the kernel syscall calling convention to
1294 disambiguate both ABIs and allow for backward compatibility support
1295 (selected with CONFIG_OABI_COMPAT).
1296
1297 To use this you need GCC version 4.0.0 or later.
1298
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001299config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001300 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001301 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001302 default y
1303 help
1304 This option preserves the old syscall interface along with the
1305 new (ARM EABI) one. It also provides a compatibility layer to
1306 intercept syscalls that have structure arguments which layout
1307 in memory differs between the legacy ABI and the new ARM EABI
1308 (only for non "thumb" binaries). This option adds a tiny
1309 overhead to all syscalls and produces a slightly larger kernel.
1310 If you know you'll be using only pure EABI user space then you
1311 can say N here. If this option is not selected and you attempt
1312 to execute a legacy ABI binary then the result will be
1313 UNPREDICTABLE (in fact it can be predicted that it won't work
1314 at all). If in doubt say Y.
1315
Mel Gormaneb335752009-05-13 17:34:48 +01001316config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001317 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001318
Russell King05944d72006-11-30 20:43:51 +00001319config ARCH_SPARSEMEM_ENABLE
1320 bool
1321
Russell King07a2f732008-10-01 21:39:58 +01001322config ARCH_SPARSEMEM_DEFAULT
1323 def_bool ARCH_SPARSEMEM_ENABLE
1324
Russell King05944d72006-11-30 20:43:51 +00001325config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001326 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001327
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001328config HIGHMEM
1329 bool "High Memory Support (EXPERIMENTAL)"
1330 depends on MMU && EXPERIMENTAL
1331 help
1332 The address space of ARM processors is only 4 Gigabytes large
1333 and it has to accommodate user address space, kernel address
1334 space as well as some memory mapped IO. That means that, if you
1335 have a large amount of physical memory and/or IO, not all of the
1336 memory can be "permanently mapped" by the kernel. The physical
1337 memory that is not permanently mapped is called "high memory".
1338
1339 Depending on the selected kernel/user memory split, minimum
1340 vmalloc space and actual amount of RAM, you may not need this
1341 option which should result in a slightly faster kernel.
1342
1343 If unsure, say n.
1344
Russell King65cec8e2009-08-17 20:02:06 +01001345config HIGHPTE
1346 bool "Allocate 2nd-level pagetables from highmem"
1347 depends on HIGHMEM
1348 depends on !OUTER_CACHE
1349
Jamie Iles1b8873a2010-02-02 20:25:44 +01001350config HW_PERF_EVENTS
1351 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001352 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001353 default y
1354 help
1355 Enable hardware performance counter support for perf events. If
1356 disabled, perf events will use software events only.
1357
eric miao354e6f72010-06-25 09:46:09 +01001358config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001359 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001360 help
1361 This enables support for sparse irqs. This is useful in general
1362 as most CPUs have a fairly sparse array of IRQ vectors, which
1363 the irq_desc then maps directly on to. Systems with a high
1364 number of off-chip IRQs will want to treat this as
1365 experimental until they have been independently verified.
1366
Dave Hansen3f22ab22005-06-23 00:07:43 -07001367source "mm/Kconfig"
1368
Magnus Dammc1b2d972010-07-05 10:00:11 +01001369config FORCE_MAX_ZONEORDER
1370 int "Maximum zone order" if ARCH_SHMOBILE
1371 range 11 64 if ARCH_SHMOBILE
1372 default "9" if SA1111
1373 default "11"
1374 help
1375 The kernel memory allocator divides physically contiguous memory
1376 blocks into "zones", where each zone is a power of two number of
1377 pages. This option selects the largest power of two that the kernel
1378 keeps in the memory allocator. If you need to allocate very large
1379 blocks of physically contiguous memory, then you may need to
1380 increase this value.
1381
1382 This config option is actually maximum order plus one. For example,
1383 a value of 11 means that the largest free memory block is 2^10 pages.
1384
Linus Torvalds1da177e2005-04-16 15:20:36 -07001385config LEDS
1386 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001387 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001388 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1390 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001391 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001392 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001393 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394 help
1395 If you say Y here, the LEDs on your machine will be used
1396 to provide useful information about your current system status.
1397
1398 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1399 be able to select which LEDs are active using the options below. If
1400 you are compiling a kernel for the EBSA-110 or the LART however, the
1401 red LED will simply flash regularly to indicate that the system is
1402 still functional. It is safe to say Y here if you have a CATS
1403 system, but the driver will do nothing.
1404
1405config LEDS_TIMER
1406 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001407 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1408 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001410 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411 default y if ARCH_EBSA110
1412 help
1413 If you say Y here, one of the system LEDs (the green one on the
1414 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1415 will flash regularly to indicate that the system is still
1416 operational. This is mainly useful to kernel hackers who are
1417 debugging unstable kernels.
1418
1419 The LART uses the same LED for both Timer LED and CPU usage LED
1420 functions. You may choose to use both, but the Timer LED function
1421 will overrule the CPU usage LED.
1422
1423config LEDS_CPU
1424 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001425 !ARCH_OMAP) \
1426 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1427 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428 depends on LEDS
1429 help
1430 If you say Y here, the red LED will be used to give a good real
1431 time indication of CPU usage, by lighting whenever the idle task
1432 is not currently executing.
1433
1434 The LART uses the same LED for both Timer LED and CPU usage LED
1435 functions. You may choose to use both, but the Timer LED function
1436 will overrule the CPU usage LED.
1437
1438config ALIGNMENT_TRAP
1439 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001440 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001442 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001444 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1446 address divisible by 4. On 32-bit ARM processors, these non-aligned
1447 fetch/store instructions will be emulated in software if you say
1448 here, which has a severe performance impact. This is necessary for
1449 correct operation of some network protocols. With an IP-only
1450 configuration it is safe to say N, otherwise say Y.
1451
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001452config UACCESS_WITH_MEMCPY
1453 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1454 depends on MMU && EXPERIMENTAL
1455 default y if CPU_FEROCEON
1456 help
1457 Implement faster copy_to_user and clear_user methods for CPU
1458 cores where a 8-word STM instruction give significantly higher
1459 memory write throughput than a sequence of individual 32bit stores.
1460
1461 A possible side effect is a slight increase in scheduling latency
1462 between threads sharing the same address space if they invoke
1463 such copy operations with large buffers.
1464
1465 However, if the CPU data cache is using a write-allocate mode,
1466 this option is unlikely to provide any performance gain.
1467
Nicolas Pitrec743f382010-05-24 23:55:42 -04001468config CC_STACKPROTECTOR
1469 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1470 help
1471 This option turns on the -fstack-protector GCC feature. This
1472 feature puts, at the beginning of functions, a canary value on
1473 the stack just before the return address, and validates
1474 the value just before actually returning. Stack based buffer
1475 overflows (that need to overwrite this return address) now also
1476 overwrite the canary, which gets detected and the attack is then
1477 neutralized via a kernel panic.
1478 This feature requires gcc version 4.2 or above.
1479
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001480config DEPRECATED_PARAM_STRUCT
1481 bool "Provide old way to pass kernel parameters"
1482 help
1483 This was deprecated in 2001 and announced to live on for 5 years.
1484 Some old boot loaders still use this way.
1485
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486endmenu
1487
1488menu "Boot options"
1489
1490# Compressed boot loader in ROM. Yes, we really want to ask about
1491# TEXT and BSS so we preserve their values in the config files.
1492config ZBOOT_ROM_TEXT
1493 hex "Compressed ROM boot loader base address"
1494 default "0"
1495 help
1496 The physical address at which the ROM-able zImage is to be
1497 placed in the target. Platforms which normally make use of
1498 ROM-able zImage formats normally set this to a suitable
1499 value in their defconfig file.
1500
1501 If ZBOOT_ROM is not enabled, this has no effect.
1502
1503config ZBOOT_ROM_BSS
1504 hex "Compressed ROM boot loader BSS address"
1505 default "0"
1506 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001507 The base address of an area of read/write memory in the target
1508 for the ROM-able zImage which must be available while the
1509 decompressor is running. It must be large enough to hold the
1510 entire decompressed kernel plus an additional 128 KiB.
1511 Platforms which normally make use of ROM-able zImage formats
1512 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513
1514 If ZBOOT_ROM is not enabled, this has no effect.
1515
1516config ZBOOT_ROM
1517 bool "Compressed boot loader in ROM/flash"
1518 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1519 help
1520 Say Y here if you intend to execute your compressed kernel image
1521 (zImage) directly from ROM or flash. If unsure, say N.
1522
1523config CMDLINE
1524 string "Default kernel command string"
1525 default ""
1526 help
1527 On some architectures (EBSA110 and CATS), there is currently no way
1528 for the boot loader to pass arguments to the kernel. For these
1529 architectures, you should supply some command-line options at build
1530 time by entering them here. As a minimum, you should specify the
1531 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1532
Alexander Holler92d20402010-02-16 19:04:53 +01001533config CMDLINE_FORCE
1534 bool "Always use the default kernel command string"
1535 depends on CMDLINE != ""
1536 help
1537 Always use the default kernel command string, even if the boot
1538 loader passes other arguments to the kernel.
1539 This is useful if you cannot or don't want to change the
1540 command-line options your boot loader passes to the kernel.
1541
1542 If unsure, say N.
1543
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544config XIP_KERNEL
1545 bool "Kernel Execute-In-Place from ROM"
1546 depends on !ZBOOT_ROM
1547 help
1548 Execute-In-Place allows the kernel to run from non-volatile storage
1549 directly addressable by the CPU, such as NOR flash. This saves RAM
1550 space since the text section of the kernel is not loaded from flash
1551 to RAM. Read-write sections, such as the data section and stack,
1552 are still copied to RAM. The XIP kernel is not compressed since
1553 it has to run directly from flash, so it will take more space to
1554 store it. The flash address used to link the kernel object files,
1555 and for storing it, is configuration dependent. Therefore, if you
1556 say Y here, you must know the proper physical address where to
1557 store the kernel image depending on your own flash memory usage.
1558
1559 Also note that the make target becomes "make xipImage" rather than
1560 "make zImage" or "make Image". The final kernel binary to put in
1561 ROM memory will be arch/arm/boot/xipImage.
1562
1563 If unsure, say N.
1564
1565config XIP_PHYS_ADDR
1566 hex "XIP Kernel Physical Location"
1567 depends on XIP_KERNEL
1568 default "0x00080000"
1569 help
1570 This is the physical address in your flash memory the kernel will
1571 be linked for and stored to. This address is dependent on your
1572 own flash usage.
1573
Richard Purdiec587e4a2007-02-06 21:29:00 +01001574config KEXEC
1575 bool "Kexec system call (EXPERIMENTAL)"
1576 depends on EXPERIMENTAL
1577 help
1578 kexec is a system call that implements the ability to shutdown your
1579 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001580 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001581 you can start any kernel with it, not just Linux.
1582
1583 It is an ongoing process to be certain the hardware in a machine
1584 is properly shutdown, so do not be surprised if this code does not
1585 initially work for you. It may help to enable device hotplugging
1586 support.
1587
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001588config ATAGS_PROC
1589 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001590 depends on KEXEC
1591 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001592 help
1593 Should the atags used to boot the kernel be exported in an "atags"
1594 file in procfs. Useful with kexec.
1595
Eric Miaoe69edc792010-07-05 15:56:50 +02001596config AUTO_ZRELADDR
1597 bool "Auto calculation of the decompressed kernel image address"
1598 depends on !ZBOOT_ROM && !ARCH_U300
1599 help
1600 ZRELADDR is the physical address where the decompressed kernel
1601 image will be placed. If AUTO_ZRELADDR is selected, the address
1602 will be determined at run-time by masking the current IP with
1603 0xf8000000. This assumes the zImage being placed in the first 128MB
1604 from start of memory.
1605
Linus Torvalds1da177e2005-04-16 15:20:36 -07001606endmenu
1607
Russell Kingac9d7ef2008-08-18 17:26:00 +01001608menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001609
Ben Dooks89c52ed2009-07-30 23:23:24 +01001610if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001611
1612source "drivers/cpufreq/Kconfig"
1613
1614config CPU_FREQ_SA1100
1615 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001616
1617config CPU_FREQ_SA1110
1618 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001619
1620config CPU_FREQ_INTEGRATOR
1621 tristate "CPUfreq driver for ARM Integrator CPUs"
1622 depends on ARCH_INTEGRATOR && CPU_FREQ
1623 default y
1624 help
1625 This enables the CPUfreq driver for ARM Integrator CPUs.
1626
1627 For details, take a look at <file:Documentation/cpu-freq>.
1628
1629 If in doubt, say Y.
1630
Russell King9e2697f2007-12-14 13:30:14 +00001631config CPU_FREQ_PXA
1632 bool
1633 depends on CPU_FREQ && ARCH_PXA && PXA25x
1634 default y
1635 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1636
Mark Brownb3748dd2009-06-15 11:23:20 +01001637config CPU_FREQ_S3C64XX
1638 bool "CPUfreq support for Samsung S3C64XX CPUs"
1639 depends on CPU_FREQ && CPU_S3C6410
1640
Ben Dooks9d56c022009-07-30 23:23:25 +01001641config CPU_FREQ_S3C
1642 bool
1643 help
1644 Internal configuration node for common cpufreq on Samsung SoC
1645
1646config CPU_FREQ_S3C24XX
1647 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1648 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1649 select CPU_FREQ_S3C
1650 help
1651 This enables the CPUfreq driver for the Samsung S3C24XX family
1652 of CPUs.
1653
1654 For details, take a look at <file:Documentation/cpu-freq>.
1655
1656 If in doubt, say N.
1657
1658config CPU_FREQ_S3C24XX_PLL
1659 bool "Support CPUfreq changing of PLL frequency"
1660 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1661 help
1662 Compile in support for changing the PLL frequency from the
1663 S3C24XX series CPUfreq driver. The PLL takes time to settle
1664 after a frequency change, so by default it is not enabled.
1665
1666 This also means that the PLL tables for the selected CPU(s) will
1667 be built which may increase the size of the kernel image.
1668
1669config CPU_FREQ_S3C24XX_DEBUG
1670 bool "Debug CPUfreq Samsung driver core"
1671 depends on CPU_FREQ_S3C24XX
1672 help
1673 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1674
1675config CPU_FREQ_S3C24XX_IODEBUG
1676 bool "Debug CPUfreq Samsung driver IO timing"
1677 depends on CPU_FREQ_S3C24XX
1678 help
1679 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1680
Ben Dookse6d197a2009-07-30 23:23:42 +01001681config CPU_FREQ_S3C24XX_DEBUGFS
1682 bool "Export debugfs for CPUFreq"
1683 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1684 help
1685 Export status information via debugfs.
1686
Linus Torvalds1da177e2005-04-16 15:20:36 -07001687endif
1688
Russell Kingac9d7ef2008-08-18 17:26:00 +01001689source "drivers/cpuidle/Kconfig"
1690
1691endmenu
1692
Linus Torvalds1da177e2005-04-16 15:20:36 -07001693menu "Floating point emulation"
1694
1695comment "At least one emulation must be selected"
1696
1697config FPE_NWFPE
1698 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001699 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001700 ---help---
1701 Say Y to include the NWFPE floating point emulator in the kernel.
1702 This is necessary to run most binaries. Linux does not currently
1703 support floating point hardware so you need to say Y here even if
1704 your machine has an FPA or floating point co-processor podule.
1705
1706 You may say N here if you are going to load the Acorn FPEmulator
1707 early in the bootup.
1708
1709config FPE_NWFPE_XP
1710 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001711 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001712 help
1713 Say Y to include 80-bit support in the kernel floating-point
1714 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1715 Note that gcc does not generate 80-bit operations by default,
1716 so in most cases this option only enlarges the size of the
1717 floating point emulator without any good reason.
1718
1719 You almost surely want to say N here.
1720
1721config FPE_FASTFPE
1722 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001723 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724 ---help---
1725 Say Y here to include the FAST floating point emulator in the kernel.
1726 This is an experimental much faster emulator which now also has full
1727 precision for the mantissa. It does not support any exceptions.
1728 It is very simple, and approximately 3-6 times faster than NWFPE.
1729
1730 It should be sufficient for most programs. It may be not suitable
1731 for scientific calculations, but you have to check this for yourself.
1732 If you do not feel you need a faster FP emulation you should better
1733 choose NWFPE.
1734
1735config VFP
1736 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001737 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738 help
1739 Say Y to include VFP support code in the kernel. This is needed
1740 if your hardware includes a VFP unit.
1741
1742 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1743 release notes and additional status information.
1744
1745 Say N if your target does not have VFP hardware.
1746
Catalin Marinas25ebee02007-09-25 15:22:24 +01001747config VFPv3
1748 bool
1749 depends on VFP
1750 default y if CPU_V7
1751
Catalin Marinasb5872db2008-01-10 19:16:17 +01001752config NEON
1753 bool "Advanced SIMD (NEON) Extension support"
1754 depends on VFPv3 && CPU_V7
1755 help
1756 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1757 Extension.
1758
Linus Torvalds1da177e2005-04-16 15:20:36 -07001759endmenu
1760
1761menu "Userspace binary formats"
1762
1763source "fs/Kconfig.binfmt"
1764
1765config ARTHUR
1766 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001767 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001768 help
1769 Say Y here to include the kernel code necessary if you want to run
1770 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1771 experimental; if this sounds frightening, say N and sleep in peace.
1772 You can also say M here to compile this support as a module (which
1773 will be called arthur).
1774
1775endmenu
1776
1777menu "Power management options"
1778
Russell Kingeceab4a2005-11-15 11:31:41 +00001779source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001780
Johannes Bergf4cb5702007-12-08 02:14:00 +01001781config ARCH_SUSPEND_POSSIBLE
1782 def_bool y
1783
Linus Torvalds1da177e2005-04-16 15:20:36 -07001784endmenu
1785
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001786source "net/Kconfig"
1787
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001788source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789
1790source "fs/Kconfig"
1791
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792source "arch/arm/Kconfig.debug"
1793
1794source "security/Kconfig"
1795
1796source "crypto/Kconfig"
1797
1798source "lib/Kconfig"