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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
Kevin Hilman746140c2006-09-22 00:16:30 +010046config GENERIC_TIME
47 bool
John Stultz5cfc8ee2010-03-24 00:22:36 +000048 default y
49
50config ARCH_USES_GETTIMEOFFSET
51 bool
52 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010053
Kevin Hilman0567a0c2007-03-13 20:29:24 +010054config GENERIC_CLOCKEVENTS
55 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010056
Catalin Marinasa8655e82008-02-04 17:30:57 +010057config GENERIC_CLOCKEVENTS_BROADCAST
58 bool
59 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010060 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010061
Linus Walleijbc581772009-09-15 17:30:37 +010062config HAVE_TCM
63 bool
64 select GENERIC_ALLOCATOR
65
Russell Kinge119bff2010-01-10 17:23:29 +000066config HAVE_PROC_CPU
67 bool
68
Al Viro5ea81762007-02-11 15:41:31 +000069config NO_IOPORT
70 bool
Al Viro5ea81762007-02-11 15:41:31 +000071
Linus Torvalds1da177e2005-04-16 15:20:36 -070072config EISA
73 bool
74 ---help---
75 The Extended Industry Standard Architecture (EISA) bus was
76 developed as an open alternative to the IBM MicroChannel bus.
77
78 The EISA bus provided some of the features of the IBM MicroChannel
79 bus while maintaining backward compatibility with cards made for
80 the older ISA bus. The EISA bus saw limited use between 1988 and
81 1995 when it was made obsolete by the PCI bus.
82
83 Say Y here if you are building a kernel for an EISA-based machine.
84
85 Otherwise, say N.
86
87config SBUS
88 bool
89
90config MCA
91 bool
92 help
93 MicroChannel Architecture is found in some IBM PS/2 machines and
94 laptops. It is a bus system similar to PCI or ISA. See
95 <file:Documentation/mca.txt> (and especially the web page given
96 there) before attempting to build an MCA bus kernel.
97
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010098config GENERIC_HARDIRQS
99 bool
100 default y
101
Russell Kingf16fb1e2007-04-28 09:59:37 +0100102config STACKTRACE_SUPPORT
103 bool
104 default y
105
Nicolas Pitref76e9152008-04-24 01:31:46 -0400106config HAVE_LATENCYTOP_SUPPORT
107 bool
108 depends on !SMP
109 default y
110
Russell Kingf16fb1e2007-04-28 09:59:37 +0100111config LOCKDEP_SUPPORT
112 bool
113 default y
114
Russell King7ad1bcb2006-08-27 12:07:02 +0100115config TRACE_IRQFLAGS_SUPPORT
116 bool
117 default y
118
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100119config HARDIRQS_SW_RESEND
120 bool
121 default y
122
123config GENERIC_IRQ_PROBE
124 bool
125 default y
126
Nick Piggin95c354f2008-01-30 13:31:20 +0100127config GENERIC_LOCKBREAK
128 bool
129 default y
130 depends on SMP && PREEMPT
131
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132config RWSEM_GENERIC_SPINLOCK
133 bool
134 default y
135
136config RWSEM_XCHGADD_ALGORITHM
137 bool
138
David Howellsf0d1b0b2006-12-08 02:37:49 -0800139config ARCH_HAS_ILOG2_U32
140 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800141
142config ARCH_HAS_ILOG2_U64
143 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800144
Ben Dooks89c52ed2009-07-30 23:23:24 +0100145config ARCH_HAS_CPUFREQ
146 bool
147 help
148 Internal node to signify that the ARCH has CPUFREQ support
149 and that the relevant menu configurations are displayed for
150 it.
151
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800152config GENERIC_HWEIGHT
153 bool
154 default y
155
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156config GENERIC_CALIBRATE_DELAY
157 bool
158 default y
159
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100160config ARCH_MAY_HAVE_PC_FDC
161 bool
162
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800163config ZONE_DMA
164 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800165
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800166config NEED_DMA_MAP_STATE
167 def_bool y
168
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169config GENERIC_ISA_DMA
170 bool
171
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172config FIQ
173 bool
174
Al Viro034d2f52005-12-19 16:27:59 -0500175config ARCH_MTD_XIP
176 bool
177
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100178config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100179 def_bool y
180
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100181config ARM_L1_CACHE_SHIFT_6
182 bool
183 help
184 Setting ARM L1 cache line size to 64 Bytes.
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194source "init/Kconfig"
195
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700196source "kernel/Kconfig.freezer"
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198menu "System Type"
199
Hyok S. Choi3c427972009-07-24 12:35:00 +0100200config MMU
201 bool "MMU-based Paged Memory Management Support"
202 default y
203 help
204 Select if you want MMU-based virtualised addressing space
205 support by paged memory management. If unsure, say 'Y'.
206
Russell Kingccf50e22010-03-15 19:03:06 +0000207#
208# The "ARM system type" choice list is ordered alphabetically by option
209# text. Please add new entries in the option alphabetic order.
210#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211choice
212 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000213 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100215config ARCH_AAEC2000
216 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000217 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100218 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700219 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000220 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100221 help
222 This enables support for systems based on the Agilent AAEC-2000
223
224config ARCH_INTEGRATOR
225 bool "ARM Ltd. Integrator family"
226 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100227 select ARCH_HAS_CPUFREQ
Russell Kingd72fbdf2008-11-08 20:08:08 +0000228 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000229 select ICST
Russell King13edd862010-01-15 21:49:23 +0000230 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000231 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 help
233 Support for ARM's Integrator platform.
234
235config ARCH_REALVIEW
236 bool "ARM Ltd. RealView family"
237 select ARM_AMBA
Russell Kingcf30fb42008-11-08 20:05:55 +0000238 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000239 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100240 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100241 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000242 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000243 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100244 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100245 help
246 This enables support for ARM Ltd RealView boards.
247
248config ARCH_VERSATILE
249 bool "ARM Ltd. Versatile family"
250 select ARM_AMBA
251 select ARM_VIC
Russell King71a06da2008-11-08 20:13:53 +0000252 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000253 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100254 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100255 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000256 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000257 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100258 help
259 This enables support for ARM Ltd Versatile board.
260
Russell Kingceade892010-02-11 21:44:53 +0000261config ARCH_VEXPRESS
262 bool "ARM Ltd. Versatile Express family"
263 select ARCH_WANT_OPTIONAL_GPIOLIB
264 select ARM_AMBA
265 select ARM_TIMER_SP804
266 select COMMON_CLKDEV
267 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000268 select HAVE_CLK
269 select ICST
270 select PLAT_VERSATILE
271 help
272 This enables support for the ARM Ltd Versatile Express boards.
273
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100274config ARCH_AT91
275 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100276 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700277 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000278 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100279 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100280 This enables support for systems based on the Atmel AT91RM9200,
281 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100282
Russell Kingccf50e22010-03-15 19:03:06 +0000283config ARCH_BCMRING
284 bool "Broadcom BCMRING"
285 depends on MMU
286 select CPU_V6
287 select ARM_AMBA
288 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000289 select GENERIC_CLOCKEVENTS
290 select ARCH_WANT_OPTIONAL_GPIOLIB
291 help
292 Support for Broadcom's BCMRing platform.
293
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100295 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000296 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000297 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000298 help
299 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300301config ARCH_CNS3XXX
302 bool "Cavium Networks CNS3XXX family"
303 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300304 select GENERIC_CLOCKEVENTS
305 select ARM_GIC
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400306 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300307 help
308 Support for Cavium Networks CNS3XXX platform.
309
Russell King788c9702009-04-26 14:21:59 +0100310config ARCH_GEMINI
311 bool "Cortina Systems Gemini"
312 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100313 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000314 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100315 help
316 Support for the Cortina Systems Gemini family SoCs
317
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318config ARCH_EBSA110
319 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000320 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100321 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000322 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000323 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 help
325 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000326 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327 Ethernet interface, two PCMCIA sockets, two serial ports and a
328 parallel port.
329
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000330config ARCH_EP93XX
331 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000332 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000333 select ARM_AMBA
334 select ARM_VIC
Russell Kingae696fd2008-11-30 17:11:49 +0000335 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700336 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100337 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000338 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000339 help
340 This enables support for the Cirrus EP93xx series of CPUs.
341
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342config ARCH_FOOTBRIDGE
343 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000344 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000346 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000347 help
348 Support for systems based on the DC21285 companion chip
349 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350
Russell King788c9702009-04-26 14:21:59 +0100351config ARCH_MXC
352 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100353 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100354 select ARCH_REQUIRE_GPIOLIB
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100355 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100356 help
357 Support for Freescale MXC/iMX-based family of processors
358
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100359config ARCH_STMP3XXX
360 bool "Freescale STMP3xxx"
361 select CPU_ARM926T
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100362 select COMMON_CLKDEV
363 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100364 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100365 select USB_ARCH_HAS_EHCI
366 help
367 Support for systems based on the Freescale 3xxx CPUs.
368
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100369config ARCH_NETX
370 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000371 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100372 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100373 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000374 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100375 This enables support for systems based on the Hilscher NetX Soc
376
377config ARCH_H720X
378 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000379 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100380 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000381 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100382 help
383 This enables support for systems based on the Hynix HMS720x
384
Russell King3b938be2007-05-12 11:25:44 +0100385config ARCH_IOP13XX
386 bool "IOP13xx-based"
387 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000388 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100389 select PLAT_IOP
390 select PCI
391 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100392 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100393 help
394 Support for Intel's IOP13XX (XScale) family of processors.
395
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100396config ARCH_IOP32X
397 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100398 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000399 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100400 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100401 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100402 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000403 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100404 Support for Intel's 80219 and IOP32X (XScale) family of
405 processors.
406
407config ARCH_IOP33X
408 bool "IOP33x-based"
409 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000410 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100411 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100412 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100413 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100414 help
415 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416
Russell King3b938be2007-05-12 11:25:44 +0100417config ARCH_IXP23XX
418 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100419 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000420 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100421 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000422 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100423 help
Russell King3b938be2007-05-12 11:25:44 +0100424 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425
426config ARCH_IXP2000
427 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100428 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000429 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100430 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000431 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000432 help
433 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434
Russell King3b938be2007-05-12 11:25:44 +0100435config ARCH_IXP4XX
436 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100437 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000438 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100439 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100440 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100441 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100442 help
Russell King3b938be2007-05-12 11:25:44 +0100443 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100444
Saeed Bisharaedabd382009-08-06 15:12:43 +0300445config ARCH_DOVE
446 bool "Marvell Dove"
447 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300448 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300449 select GENERIC_CLOCKEVENTS
450 select PLAT_ORION
451 help
452 Support for the Marvell Dove SoC 88AP510
453
Saeed Bishara651c74c2008-06-22 22:45:06 +0200454config ARCH_KIRKWOOD
455 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000456 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200457 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700458 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200459 select GENERIC_CLOCKEVENTS
460 select PLAT_ORION
461 help
462 Support for the following Marvell Kirkwood series SoCs:
463 88F6180, 88F6192 and 88F6281.
464
Russell King788c9702009-04-26 14:21:59 +0100465config ARCH_LOKI
466 bool "Marvell Loki (88RC8480)"
467 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100468 select GENERIC_CLOCKEVENTS
469 select PLAT_ORION
470 help
471 Support for the Marvell Loki (88RC8480) SoC.
472
Kevin Wells40805942010-07-27 08:49:04 -0700473config ARCH_LPC32XX
474 bool "NXP LPC32XX"
475 select CPU_ARM926T
476 select ARCH_REQUIRE_GPIOLIB
477 select HAVE_IDE
478 select ARM_AMBA
479 select USB_ARCH_HAS_OHCI
480 select COMMON_CLKDEV
481 select GENERIC_TIME
482 select GENERIC_CLOCKEVENTS
483 help
484 Support for the NXP LPC32XX family of processors
485
Russell King788c9702009-04-26 14:21:59 +0100486config ARCH_MV78XX0
487 bool "Marvell MV78xx0"
488 select CPU_FEROCEON
489 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700490 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100491 select GENERIC_CLOCKEVENTS
492 select PLAT_ORION
493 help
494 Support for the following Marvell MV78xx0 series SoCs:
495 MV781x0, MV782x0.
496
497config ARCH_ORION5X
498 bool "Marvell Orion"
499 depends on MMU
500 select CPU_FEROCEON
501 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700502 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100503 select GENERIC_CLOCKEVENTS
504 select PLAT_ORION
505 help
506 Support for the following Marvell Orion 5x series SoCs:
507 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
508 Orion-2 (5281), Orion-1-90 (6183).
509
510config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500511 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100512 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100513 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100514 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100515 select GENERIC_CLOCKEVENTS
516 select TICK_ONESHOT
517 select PLAT_PXA
518 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500519 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100520
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100521config ARCH_KS8695
522 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000523 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100524 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000525 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100526 help
527 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
528 System-on-Chip devices.
529
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100530config ARCH_NS9XXX
531 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000532 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100533 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100534 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700535 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100536 help
537 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
538 System.
539
540 <http://www.digi.com/products/microprocessors/index.jsp>
541
Russell King788c9702009-04-26 14:21:59 +0100542config ARCH_W90X900
543 bool "Nuvoton W90X900 CPU"
544 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100545 select ARCH_REQUIRE_GPIOLIB
wanzongshun0e4a34b2009-06-10 15:50:44 +0100546 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100547 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200548 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100549 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
550 At present, the w90x900 has been renamed nuc900, regarding
551 the ARM series product line, you can login the following
552 link address to know more.
553
554 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
555 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400556
wanzongshuna62e9032009-12-31 15:06:05 +0100557config ARCH_NUC93X
558 bool "Nuvoton NUC93X CPU"
559 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100560 select COMMON_CLKDEV
561 help
562 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
563 low-power and high performance MPEG-4/JPEG multimedia controller chip.
564
Erik Gillingc5f80062010-01-21 16:53:02 -0800565config ARCH_TEGRA
566 bool "NVIDIA Tegra"
567 select GENERIC_TIME
568 select GENERIC_CLOCKEVENTS
569 select GENERIC_GPIO
570 select HAVE_CLK
Colin Crossd8611962010-01-28 16:40:29 -0800571 select COMMON_CLKDEV
Erik Gillingc5f80062010-01-21 16:53:02 -0800572 select ARCH_HAS_BARRIERS if CACHE_L2X0
573 help
574 This enables support for NVIDIA Tegra based systems (Tegra APX,
575 Tegra 6xx and Tegra 2 series).
576
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100577config ARCH_PNX4008
578 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000579 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000580 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000581 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100582 help
583 This enables support for Philips PNX4008 mobile platform.
584
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700586 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100587 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500588 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100589 select ARCH_HAS_CPUFREQ
Russell King8c3abc72008-11-08 20:25:21 +0000590 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700591 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100592 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000593 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800594 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000595 help
eric miao2c8086a2007-09-11 19:13:17 -0700596 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597
Russell King788c9702009-04-26 14:21:59 +0100598config ARCH_MSM
599 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500600 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800601 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700602 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800603 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800604 Support for Qualcomm MSM/QSD based systems. This runs on the
605 apps processor of the MSM/QSD and depends on a shared memory
606 interface to the modem processor which runs the baseband
607 stack and controls some vital subsystems
608 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800609
Magnus Dammc793c1b2010-02-05 11:14:49 +0000610config ARCH_SHMOBILE
611 bool "Renesas SH-Mobile"
612 help
613 Support for Renesas's SH-Mobile ARM platforms
614
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615config ARCH_RPC
616 bool "RiscPC"
617 select ARCH_ACORN
618 select FIQ
619 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100620 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100621 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000622 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000623 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100624 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000625 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626 help
627 On the Acorn Risc-PC, Linux can support the internal IDE disk and
628 CD-ROM interface, serial and parallel port, and the floppy drive.
629
630config ARCH_SA1100
631 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000632 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100633 select ISA
Russell King05944d72006-11-30 20:43:51 +0000634 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500635 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100636 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000637 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100638 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700639 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100640 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700641 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000642 help
643 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644
645config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900646 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800647 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100648 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700649 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000650 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651 help
652 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
653 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000654 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655
Ben Dooks63b1f512010-04-30 16:32:26 +0900656 Note, the S3C2416 and the S3C2450 are so close that they even share
657 the same SoC ID code. This means that there is no seperate machine
658 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
659
Ben Dooksa08ab632008-10-21 14:06:39 +0100660config ARCH_S3C64XX
661 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000662 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900663 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900664 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100665 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900666 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000667 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100668 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900669 select ARCH_REQUIRE_GPIOLIB
670 select SAMSUNG_CLKSRC
671 select SAMSUNG_IRQ_VIC_TIMER
672 select SAMSUNG_IRQ_UART
673 select S3C_GPIO_TRACK
674 select S3C_GPIO_PULL_UPDOWN
675 select S3C_GPIO_CFG_S3C24XX
676 select S3C_GPIO_CFG_S3C64XX
677 select S3C_DEV_NAND
678 select USB_ARCH_HAS_OHCI
679 select SAMSUNG_GPIOLIB_4BIT
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
Ben Dooks925c68c2010-05-20 20:48:28 +0900688 select ARCH_USES_GETTIMEOFFSET
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900689 help
690 Samsung S5P6440 CPU based systems
691
Kukjin Kim550db7f2010-01-29 10:19:26 +0900692config ARCH_S5P6442
693 bool "Samsung S5P6442"
694 select CPU_V6
695 select GENERIC_GPIO
696 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900697 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim550db7f2010-01-29 10:19:26 +0900698 help
699 Samsung S5P6442 CPU based systems
700
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200701config ARCH_S5PC100
702 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900703 select GENERIC_GPIO
704 select HAVE_CLK
705 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100706 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900707 select ARCH_USES_GETTIMEOFFSET
Byungho Min5a7652f2009-06-23 21:39:42 +0900708 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200709 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900710
Kukjin Kim170f4e42010-02-24 16:40:44 +0900711config ARCH_S5PV210
712 bool "Samsung S5PV210/S5PC110"
713 select CPU_V7
714 select GENERIC_GPIO
715 select HAVE_CLK
716 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900717 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim170f4e42010-02-24 16:40:44 +0900718 help
719 Samsung S5PV210/S5PC110 series based systems
720
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721config ARCH_SHARK
722 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000723 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100724 select ISA
725 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100726 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100727 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000728 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000729 help
730 Support for the StrongARM based Digital DNARD machine, also known
731 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732
733config ARCH_LH7A40X
734 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000735 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100736 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000737 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 help
739 Say Y here for systems based on one of the Sharp LH7A40X
740 System on a Chip processors. These CPUs include an ARM922T
741 core with a wide array of integrated devices for
742 hand-held and low-power applications.
743
Linus Walleijd98aac72009-04-27 10:21:46 +0100744config ARCH_U300
745 bool "ST-Ericsson U300 Series"
746 depends on MMU
747 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100748 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100749 select ARM_AMBA
750 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100751 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100752 select COMMON_CLKDEV
753 select GENERIC_GPIO
754 help
755 Support for ST-Ericsson U300 series mobile platforms.
756
Russell Kingccf50e22010-03-15 19:03:06 +0000757config ARCH_U8500
758 bool "ST-Ericsson U8500 Series"
759 select CPU_V7
760 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000761 select GENERIC_CLOCKEVENTS
762 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100763 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000764 help
765 Support for ST-Ericsson's Ux500 architecture
766
767config ARCH_NOMADIK
768 bool "STMicroelectronics Nomadik"
769 select ARM_AMBA
770 select ARM_VIC
771 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000772 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000773 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000774 select ARCH_REQUIRE_GPIOLIB
775 help
776 Support for the Nomadik platform by ST-Ericsson
777
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100778config ARCH_DAVINCI
779 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100780 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700781 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100782 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700783 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700784 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700785 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530786 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100787 help
788 Support for TI's DaVinci platform.
789
Russell King3b938be2007-05-12 11:25:44 +0100790config ARCH_OMAP
791 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700792 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700793 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100794 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700795 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800796 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100797 help
798 Support for TI's OMAP platform (OMAP1 and OMAP2).
799
viresh kumarcee37e52010-04-01 12:31:05 +0100800config PLAT_SPEAR
801 bool "ST SPEAr"
802 select ARM_AMBA
803 select ARCH_REQUIRE_GPIOLIB
804 select COMMON_CLKDEV
805 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100806 select HAVE_CLK
807 help
808 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
809
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810endchoice
811
Russell Kingccf50e22010-03-15 19:03:06 +0000812#
813# This is sorted alphabetically by mach-* pathname. However, plat-*
814# Kconfigs may be included either alphabetically (according to the
815# plat- suffix) or along side the corresponding mach-* source.
816#
Russell King95b8f202010-01-14 11:43:54 +0000817source "arch/arm/mach-aaec2000/Kconfig"
818
819source "arch/arm/mach-at91/Kconfig"
820
821source "arch/arm/mach-bcmring/Kconfig"
822
Linus Torvalds1da177e2005-04-16 15:20:36 -0700823source "arch/arm/mach-clps711x/Kconfig"
824
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300825source "arch/arm/mach-cns3xxx/Kconfig"
826
Russell King95b8f202010-01-14 11:43:54 +0000827source "arch/arm/mach-davinci/Kconfig"
828
829source "arch/arm/mach-dove/Kconfig"
830
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000831source "arch/arm/mach-ep93xx/Kconfig"
832
Linus Torvalds1da177e2005-04-16 15:20:36 -0700833source "arch/arm/mach-footbridge/Kconfig"
834
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200835source "arch/arm/mach-gemini/Kconfig"
836
Russell King95b8f202010-01-14 11:43:54 +0000837source "arch/arm/mach-h720x/Kconfig"
838
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839source "arch/arm/mach-integrator/Kconfig"
840
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100841source "arch/arm/mach-iop32x/Kconfig"
842
843source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844
Dan Williams285f5fa2006-12-07 02:59:39 +0100845source "arch/arm/mach-iop13xx/Kconfig"
846
Linus Torvalds1da177e2005-04-16 15:20:36 -0700847source "arch/arm/mach-ixp4xx/Kconfig"
848
849source "arch/arm/mach-ixp2000/Kconfig"
850
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100851source "arch/arm/mach-ixp23xx/Kconfig"
852
Russell King95b8f202010-01-14 11:43:54 +0000853source "arch/arm/mach-kirkwood/Kconfig"
854
855source "arch/arm/mach-ks8695/Kconfig"
856
857source "arch/arm/mach-lh7a40x/Kconfig"
858
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200859source "arch/arm/mach-loki/Kconfig"
860
Kevin Wells40805942010-07-27 08:49:04 -0700861source "arch/arm/mach-lpc32xx/Kconfig"
862
Russell King95b8f202010-01-14 11:43:54 +0000863source "arch/arm/mach-msm/Kconfig"
864
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200865source "arch/arm/mach-mv78xx0/Kconfig"
866
Russell King95b8f202010-01-14 11:43:54 +0000867source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868
Russell King95b8f202010-01-14 11:43:54 +0000869source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800870
Russell King95b8f202010-01-14 11:43:54 +0000871source "arch/arm/mach-nomadik/Kconfig"
872source "arch/arm/plat-nomadik/Kconfig"
873
874source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875
Russell Kingd91a89102010-02-04 18:13:17 +0000876source "arch/arm/mach-nuc93x/Kconfig"
877
Tony Lindgrend48af152005-07-10 19:58:17 +0100878source "arch/arm/plat-omap/Kconfig"
879
880source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881
Tony Lindgren1dbae812005-11-10 14:26:51 +0000882source "arch/arm/mach-omap2/Kconfig"
883
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400884source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400885
Russell King95b8f202010-01-14 11:43:54 +0000886source "arch/arm/mach-pxa/Kconfig"
887source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888
Russell King95b8f202010-01-14 11:43:54 +0000889source "arch/arm/mach-mmp/Kconfig"
890
891source "arch/arm/mach-realview/Kconfig"
892
893source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300894
Ben Dookscf383672009-11-10 00:14:58 +0000895source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100896source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900897source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100898
viresh kumarcee37e52010-04-01 12:31:05 +0100899source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100900
901if ARCH_S3C2410
902source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700903source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100904source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900905source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100906source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100907source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100908endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909
Ben Dooksa08ab632008-10-21 14:06:39 +0100910if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900911source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100912endif
913
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900914source "arch/arm/mach-s5p6440/Kconfig"
915
Kukjin Kim550db7f2010-01-29 10:19:26 +0900916source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100917
Byungho Min5a7652f2009-06-23 21:39:42 +0900918source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900919
Kukjin Kim170f4e42010-02-24 16:40:44 +0900920source "arch/arm/mach-s5pv210/Kconfig"
921
Russell King882d01f2010-03-02 23:40:15 +0000922source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923
Russell King882d01f2010-03-02 23:40:15 +0000924source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800925
Erik Gillingc5f80062010-01-21 16:53:02 -0800926source "arch/arm/mach-tegra/Kconfig"
927
Russell King95b8f202010-01-14 11:43:54 +0000928source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100929
Russell King95b8f202010-01-14 11:43:54 +0000930source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931
932source "arch/arm/mach-versatile/Kconfig"
933
Russell Kingceade892010-02-11 21:44:53 +0000934source "arch/arm/mach-vexpress/Kconfig"
935
wanzongshun7ec80dd2008-12-03 03:55:38 +0100936source "arch/arm/mach-w90x900/Kconfig"
937
Linus Torvalds1da177e2005-04-16 15:20:36 -0700938# Definitions to make life easier
939config ARCH_ACORN
940 bool
941
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100942config PLAT_IOP
943 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700944 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100945
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400946config PLAT_ORION
947 bool
948
Eric Miaobd5ce432009-01-20 12:06:01 +0800949config PLAT_PXA
950 bool
951
Russell Kingf4b8b312010-01-14 12:48:06 +0000952config PLAT_VERSATILE
953 bool
954
Russell Kinge3887712010-01-14 13:30:16 +0000955config ARM_TIMER_SP804
956 bool
957
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958source arch/arm/mm/Kconfig
959
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100960config IWMMXT
961 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800962 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
963 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100964 help
965 Enable support for iWMMXt context switching at run time if
966 running on a CPU that supports it.
967
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
969config XSCALE_PMU
970 bool
971 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
972 default y
973
Jamie Iles0f4f0672010-02-02 20:23:15 +0100974config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +0100975 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
976 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +0100977 default y
978 bool
979
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100980if !MMU
981source "arch/arm/Kconfig-nommu"
982endif
983
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100984config ARM_ERRATA_411920
985 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
986 depends on CPU_V6 && !SMP
987 help
988 Invalidation of the Instruction Cache operation can
989 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
990 It does not affect the MPCore. This option enables the ARM Ltd.
991 recommended workaround.
992
Catalin Marinas7ce236fc2009-04-30 17:06:09 +0100993config ARM_ERRATA_430973
994 bool "ARM errata: Stale prediction on replaced interworking branch"
995 depends on CPU_V7
996 help
997 This option enables the workaround for the 430973 Cortex-A8
998 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
999 interworking branch is replaced with another code sequence at the
1000 same virtual address, whether due to self-modifying code or virtual
1001 to physical address re-mapping, Cortex-A8 does not recover from the
1002 stale interworking branch prediction. This results in Cortex-A8
1003 executing the new code sequence in the incorrect ARM or Thumb state.
1004 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1005 and also flushes the branch target cache at every context switch.
1006 Note that setting specific bits in the ACTLR register may not be
1007 available in non-secure mode.
1008
Catalin Marinas855c5512009-04-30 17:06:15 +01001009config ARM_ERRATA_458693
1010 bool "ARM errata: Processor deadlock when a false hazard is created"
1011 depends on CPU_V7
1012 help
1013 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1014 erratum. For very specific sequences of memory operations, it is
1015 possible for a hazard condition intended for a cache line to instead
1016 be incorrectly associated with a different cache line. This false
1017 hazard might then cause a processor deadlock. The workaround enables
1018 the L1 caching of the NEON accesses and disables the PLD instruction
1019 in the ACTLR register. Note that setting specific bits in the ACTLR
1020 register may not be available in non-secure mode.
1021
Catalin Marinas0516e462009-04-30 17:06:20 +01001022config ARM_ERRATA_460075
1023 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1024 depends on CPU_V7
1025 help
1026 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1027 erratum. Any asynchronous access to the L2 cache may encounter a
1028 situation in which recent store transactions to the L2 cache are lost
1029 and overwritten with stale memory contents from external memory. The
1030 workaround disables the write-allocate mode for the L2 cache via the
1031 ACTLR register. Note that setting specific bits in the ACTLR register
1032 may not be available in non-secure mode.
1033
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001034config PL310_ERRATA_588369
1035 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1036 depends on CACHE_L2X0 && ARCH_OMAP4
1037 help
1038 The PL310 L2 cache controller implements three types of Clean &
1039 Invalidate maintenance operations: by Physical Address
1040 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1041 They are architecturally defined to behave as the execution of a
1042 clean operation followed immediately by an invalidate operation,
1043 both performing to the same memory location. This functionality
1044 is not correctly implemented in PL310 as clean lines are not
1045 invalidated as a result of these operations. Note that this errata
1046 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047endmenu
1048
1049source "arch/arm/common/Kconfig"
1050
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051menu "Bus support"
1052
1053config ARM_AMBA
1054 bool
1055
1056config ISA
1057 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058 help
1059 Find out whether you have ISA slots on your motherboard. ISA is the
1060 name of a bus system, i.e. the way the CPU talks to the other stuff
1061 inside your box. Other bus systems are PCI, EISA, MicroChannel
1062 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1063 newer boards don't support it. If you have ISA, say Y, otherwise N.
1064
Russell King065909b2006-01-04 15:44:16 +00001065# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066config ISA_DMA
1067 bool
Russell King065909b2006-01-04 15:44:16 +00001068 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069
Russell King065909b2006-01-04 15:44:16 +00001070# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001071config ISA_DMA_API
1072 bool
Al Viro5cae8412005-05-04 05:39:22 +01001073
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074config PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +04001075 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 -07001076 help
1077 Find out whether you have a PCI motherboard. PCI is the name of a
1078 bus system, i.e. the way the CPU talks to the other stuff inside
1079 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1080 VESA. If you have PCI, say Y, otherwise N.
1081
Anton Vorontsov52882172010-04-19 13:20:49 +01001082config PCI_DOMAINS
1083 bool
1084 depends on PCI
1085
Matthew Wilcox36e23592007-07-10 10:54:40 -06001086config PCI_SYSCALL
1087 def_bool PCI
1088
Linus Torvalds1da177e2005-04-16 15:20:36 -07001089# Select the host bridge type
1090config PCI_HOST_VIA82C505
1091 bool
1092 depends on PCI && ARCH_SHARK
1093 default y
1094
Mike Rapoporta0113a92007-11-25 08:55:34 +01001095config PCI_HOST_ITE8152
1096 bool
1097 depends on PCI && MACH_ARMCORE
1098 default y
1099 select DMABOUNCE
1100
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101source "drivers/pci/Kconfig"
1102
1103source "drivers/pcmcia/Kconfig"
1104
1105endmenu
1106
1107menu "Kernel Features"
1108
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001109source "kernel/time/Kconfig"
1110
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111config SMP
1112 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001113 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Russell King59ac59f2010-02-11 21:56:07 +00001114 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
1115 ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Russell Kingbc282482009-05-17 18:58:34 +01001116 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001117 select USE_GENERIC_SMP_HELPERS
Russell King59ac59f2010-02-11 21:56:07 +00001118 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119 help
1120 This enables support for systems with more than one CPU. If you have
1121 a system with only one CPU, like most personal computers, say N. If
1122 you have a system with more than one CPU, say Y.
1123
1124 If you say N here, the kernel will run on single and multiprocessor
1125 machines, but will use only one CPU of a multiprocessor machine. If
1126 you say Y here, the kernel will run on many, but not all, single
1127 processor machines. On a single processor machine, the kernel will
1128 run faster if you say N here.
1129
Adrian Bunk03502fa2008-02-03 15:50:21 +02001130 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1132 <http://www.linuxdoc.org/docs.html#howto>.
1133
1134 If you don't know what to do here, say N.
1135
Russell Kinga8cbcd92009-05-16 11:51:14 +01001136config HAVE_ARM_SCU
1137 bool
1138 depends on SMP
1139 help
1140 This option enables support for the ARM system coherency unit
1141
Russell Kingf32f4ce2009-05-16 12:14:21 +01001142config HAVE_ARM_TWD
1143 bool
1144 depends on SMP
1145 help
1146 This options enables support for the ARM timer and watchdog unit
1147
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001148choice
1149 prompt "Memory split"
1150 default VMSPLIT_3G
1151 help
1152 Select the desired split between kernel and user memory.
1153
1154 If you are not absolutely sure what you are doing, leave this
1155 option alone!
1156
1157 config VMSPLIT_3G
1158 bool "3G/1G user/kernel split"
1159 config VMSPLIT_2G
1160 bool "2G/2G user/kernel split"
1161 config VMSPLIT_1G
1162 bool "1G/3G user/kernel split"
1163endchoice
1164
1165config PAGE_OFFSET
1166 hex
1167 default 0x40000000 if VMSPLIT_1G
1168 default 0x80000000 if VMSPLIT_2G
1169 default 0xC0000000
1170
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171config NR_CPUS
1172 int "Maximum number of CPUs (2-32)"
1173 range 2 32
1174 depends on SMP
1175 default "4"
1176
Russell Kinga054a812005-11-02 22:24:33 +00001177config HOTPLUG_CPU
1178 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1179 depends on SMP && HOTPLUG && EXPERIMENTAL
1180 help
1181 Say Y here to experiment with turning CPUs off and on. CPUs
1182 can be controlled through /sys/devices/system/cpu.
1183
Russell King37ee16a2005-11-08 19:08:05 +00001184config LOCAL_TIMERS
1185 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001186 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Will Deaconbde28b82010-07-09 13:52:09 +01001187 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1188 ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Russell King37ee16a2005-11-08 19:08:05 +00001189 default y
Will Deaconbde28b82010-07-09 13:52:09 +01001190 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_VEXPRESS || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001191 help
1192 Enable support for local timers on SMP platforms, rather then the
1193 legacy IPI broadcast method. Local timers allows the system
1194 accounting to be spread across the timer interval, preventing a
1195 "thundering herd" at every timer tick.
1196
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001197source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001198
Russell Kingf8065812006-03-02 22:41:59 +00001199config HZ
1200 int
Kukjin Kim170f4e42010-02-24 16:40:44 +09001201 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001202 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001203 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001204 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001205 default 100
1206
Catalin Marinas16c79652009-07-24 12:33:02 +01001207config THUMB2_KERNEL
1208 bool "Compile the kernel in Thumb-2 mode"
1209 depends on CPU_V7 && EXPERIMENTAL
1210 select AEABI
1211 select ARM_ASM_UNIFIED
1212 help
1213 By enabling this option, the kernel will be compiled in
1214 Thumb-2 mode. A compiler/assembler that understand the unified
1215 ARM-Thumb syntax is needed.
1216
1217 If unsure, say N.
1218
Catalin Marinas0becb082009-07-24 12:32:53 +01001219config ARM_ASM_UNIFIED
1220 bool
1221
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001222config AEABI
1223 bool "Use the ARM EABI to compile the kernel"
1224 help
1225 This option allows for the kernel to be compiled using the latest
1226 ARM ABI (aka EABI). This is only useful if you are using a user
1227 space environment that is also compiled with EABI.
1228
1229 Since there are major incompatibilities between the legacy ABI and
1230 EABI, especially with regard to structure member alignment, this
1231 option also changes the kernel syscall calling convention to
1232 disambiguate both ABIs and allow for backward compatibility support
1233 (selected with CONFIG_OABI_COMPAT).
1234
1235 To use this you need GCC version 4.0.0 or later.
1236
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001237config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001238 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001239 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001240 default y
1241 help
1242 This option preserves the old syscall interface along with the
1243 new (ARM EABI) one. It also provides a compatibility layer to
1244 intercept syscalls that have structure arguments which layout
1245 in memory differs between the legacy ABI and the new ARM EABI
1246 (only for non "thumb" binaries). This option adds a tiny
1247 overhead to all syscalls and produces a slightly larger kernel.
1248 If you know you'll be using only pure EABI user space then you
1249 can say N here. If this option is not selected and you attempt
1250 to execute a legacy ABI binary then the result will be
1251 UNPREDICTABLE (in fact it can be predicted that it won't work
1252 at all). If in doubt say Y.
1253
Mel Gormaneb335752009-05-13 17:34:48 +01001254config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001255 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001256
Russell King05944d72006-11-30 20:43:51 +00001257config ARCH_SPARSEMEM_ENABLE
1258 bool
1259
Russell King07a2f732008-10-01 21:39:58 +01001260config ARCH_SPARSEMEM_DEFAULT
1261 def_bool ARCH_SPARSEMEM_ENABLE
1262
Russell King05944d72006-11-30 20:43:51 +00001263config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001264 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001265
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001266config HIGHMEM
1267 bool "High Memory Support (EXPERIMENTAL)"
1268 depends on MMU && EXPERIMENTAL
1269 help
1270 The address space of ARM processors is only 4 Gigabytes large
1271 and it has to accommodate user address space, kernel address
1272 space as well as some memory mapped IO. That means that, if you
1273 have a large amount of physical memory and/or IO, not all of the
1274 memory can be "permanently mapped" by the kernel. The physical
1275 memory that is not permanently mapped is called "high memory".
1276
1277 Depending on the selected kernel/user memory split, minimum
1278 vmalloc space and actual amount of RAM, you may not need this
1279 option which should result in a slightly faster kernel.
1280
1281 If unsure, say n.
1282
Russell King65cec8e2009-08-17 20:02:06 +01001283config HIGHPTE
1284 bool "Allocate 2nd-level pagetables from highmem"
1285 depends on HIGHMEM
1286 depends on !OUTER_CACHE
1287
Jamie Iles1b8873a2010-02-02 20:25:44 +01001288config HW_PERF_EVENTS
1289 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001290 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001291 default y
1292 help
1293 Enable hardware performance counter support for perf events. If
1294 disabled, perf events will use software events only.
1295
eric miao354e6f72010-06-25 09:46:09 +01001296config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001297 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001298 help
1299 This enables support for sparse irqs. This is useful in general
1300 as most CPUs have a fairly sparse array of IRQ vectors, which
1301 the irq_desc then maps directly on to. Systems with a high
1302 number of off-chip IRQs will want to treat this as
1303 experimental until they have been independently verified.
1304
Dave Hansen3f22ab22005-06-23 00:07:43 -07001305source "mm/Kconfig"
1306
Magnus Dammc1b2d972010-07-05 10:00:11 +01001307config FORCE_MAX_ZONEORDER
1308 int "Maximum zone order" if ARCH_SHMOBILE
1309 range 11 64 if ARCH_SHMOBILE
1310 default "9" if SA1111
1311 default "11"
1312 help
1313 The kernel memory allocator divides physically contiguous memory
1314 blocks into "zones", where each zone is a power of two number of
1315 pages. This option selects the largest power of two that the kernel
1316 keeps in the memory allocator. If you need to allocate very large
1317 blocks of physically contiguous memory, then you may need to
1318 increase this value.
1319
1320 This config option is actually maximum order plus one. For example,
1321 a value of 11 means that the largest free memory block is 2^10 pages.
1322
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323config LEDS
1324 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001325 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001326 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1328 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001329 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001330 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042fb2009-05-30 13:56:13 +01001331 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332 help
1333 If you say Y here, the LEDs on your machine will be used
1334 to provide useful information about your current system status.
1335
1336 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1337 be able to select which LEDs are active using the options below. If
1338 you are compiling a kernel for the EBSA-110 or the LART however, the
1339 red LED will simply flash regularly to indicate that the system is
1340 still functional. It is safe to say Y here if you have a CATS
1341 system, but the driver will do nothing.
1342
1343config LEDS_TIMER
1344 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001345 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1346 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001347 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001348 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349 default y if ARCH_EBSA110
1350 help
1351 If you say Y here, one of the system LEDs (the green one on the
1352 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1353 will flash regularly to indicate that the system is still
1354 operational. This is mainly useful to kernel hackers who are
1355 debugging unstable kernels.
1356
1357 The LART uses the same LED for both Timer LED and CPU usage LED
1358 functions. You may choose to use both, but the Timer LED function
1359 will overrule the CPU usage LED.
1360
1361config LEDS_CPU
1362 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001363 !ARCH_OMAP) \
1364 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1365 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366 depends on LEDS
1367 help
1368 If you say Y here, the red LED will be used to give a good real
1369 time indication of CPU usage, by lighting whenever the idle task
1370 is not currently executing.
1371
1372 The LART uses the same LED for both Timer LED and CPU usage LED
1373 functions. You may choose to use both, but the Timer LED function
1374 will overrule the CPU usage LED.
1375
1376config ALIGNMENT_TRAP
1377 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001378 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001380 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001382 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1384 address divisible by 4. On 32-bit ARM processors, these non-aligned
1385 fetch/store instructions will be emulated in software if you say
1386 here, which has a severe performance impact. This is necessary for
1387 correct operation of some network protocols. With an IP-only
1388 configuration it is safe to say N, otherwise say Y.
1389
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001390config UACCESS_WITH_MEMCPY
1391 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1392 depends on MMU && EXPERIMENTAL
1393 default y if CPU_FEROCEON
1394 help
1395 Implement faster copy_to_user and clear_user methods for CPU
1396 cores where a 8-word STM instruction give significantly higher
1397 memory write throughput than a sequence of individual 32bit stores.
1398
1399 A possible side effect is a slight increase in scheduling latency
1400 between threads sharing the same address space if they invoke
1401 such copy operations with large buffers.
1402
1403 However, if the CPU data cache is using a write-allocate mode,
1404 this option is unlikely to provide any performance gain.
1405
Nicolas Pitrec743f382010-05-24 23:55:42 -04001406config CC_STACKPROTECTOR
1407 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1408 help
1409 This option turns on the -fstack-protector GCC feature. This
1410 feature puts, at the beginning of functions, a canary value on
1411 the stack just before the return address, and validates
1412 the value just before actually returning. Stack based buffer
1413 overflows (that need to overwrite this return address) now also
1414 overwrite the canary, which gets detected and the attack is then
1415 neutralized via a kernel panic.
1416 This feature requires gcc version 4.2 or above.
1417
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001418config DEPRECATED_PARAM_STRUCT
1419 bool "Provide old way to pass kernel parameters"
1420 help
1421 This was deprecated in 2001 and announced to live on for 5 years.
1422 Some old boot loaders still use this way.
1423
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424endmenu
1425
1426menu "Boot options"
1427
1428# Compressed boot loader in ROM. Yes, we really want to ask about
1429# TEXT and BSS so we preserve their values in the config files.
1430config ZBOOT_ROM_TEXT
1431 hex "Compressed ROM boot loader base address"
1432 default "0"
1433 help
1434 The physical address at which the ROM-able zImage is to be
1435 placed in the target. Platforms which normally make use of
1436 ROM-able zImage formats normally set this to a suitable
1437 value in their defconfig file.
1438
1439 If ZBOOT_ROM is not enabled, this has no effect.
1440
1441config ZBOOT_ROM_BSS
1442 hex "Compressed ROM boot loader BSS address"
1443 default "0"
1444 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001445 The base address of an area of read/write memory in the target
1446 for the ROM-able zImage which must be available while the
1447 decompressor is running. It must be large enough to hold the
1448 entire decompressed kernel plus an additional 128 KiB.
1449 Platforms which normally make use of ROM-able zImage formats
1450 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451
1452 If ZBOOT_ROM is not enabled, this has no effect.
1453
1454config ZBOOT_ROM
1455 bool "Compressed boot loader in ROM/flash"
1456 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1457 help
1458 Say Y here if you intend to execute your compressed kernel image
1459 (zImage) directly from ROM or flash. If unsure, say N.
1460
1461config CMDLINE
1462 string "Default kernel command string"
1463 default ""
1464 help
1465 On some architectures (EBSA110 and CATS), there is currently no way
1466 for the boot loader to pass arguments to the kernel. For these
1467 architectures, you should supply some command-line options at build
1468 time by entering them here. As a minimum, you should specify the
1469 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1470
Alexander Holler92d20402010-02-16 19:04:53 +01001471config CMDLINE_FORCE
1472 bool "Always use the default kernel command string"
1473 depends on CMDLINE != ""
1474 help
1475 Always use the default kernel command string, even if the boot
1476 loader passes other arguments to the kernel.
1477 This is useful if you cannot or don't want to change the
1478 command-line options your boot loader passes to the kernel.
1479
1480 If unsure, say N.
1481
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482config XIP_KERNEL
1483 bool "Kernel Execute-In-Place from ROM"
1484 depends on !ZBOOT_ROM
1485 help
1486 Execute-In-Place allows the kernel to run from non-volatile storage
1487 directly addressable by the CPU, such as NOR flash. This saves RAM
1488 space since the text section of the kernel is not loaded from flash
1489 to RAM. Read-write sections, such as the data section and stack,
1490 are still copied to RAM. The XIP kernel is not compressed since
1491 it has to run directly from flash, so it will take more space to
1492 store it. The flash address used to link the kernel object files,
1493 and for storing it, is configuration dependent. Therefore, if you
1494 say Y here, you must know the proper physical address where to
1495 store the kernel image depending on your own flash memory usage.
1496
1497 Also note that the make target becomes "make xipImage" rather than
1498 "make zImage" or "make Image". The final kernel binary to put in
1499 ROM memory will be arch/arm/boot/xipImage.
1500
1501 If unsure, say N.
1502
1503config XIP_PHYS_ADDR
1504 hex "XIP Kernel Physical Location"
1505 depends on XIP_KERNEL
1506 default "0x00080000"
1507 help
1508 This is the physical address in your flash memory the kernel will
1509 be linked for and stored to. This address is dependent on your
1510 own flash usage.
1511
Richard Purdiec587e4a2007-02-06 21:29:00 +01001512config KEXEC
1513 bool "Kexec system call (EXPERIMENTAL)"
1514 depends on EXPERIMENTAL
1515 help
1516 kexec is a system call that implements the ability to shutdown your
1517 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001518 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001519 you can start any kernel with it, not just Linux.
1520
1521 It is an ongoing process to be certain the hardware in a machine
1522 is properly shutdown, so do not be surprised if this code does not
1523 initially work for you. It may help to enable device hotplugging
1524 support.
1525
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001526config ATAGS_PROC
1527 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001528 depends on KEXEC
1529 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001530 help
1531 Should the atags used to boot the kernel be exported in an "atags"
1532 file in procfs. Useful with kexec.
1533
Eric Miaoe69edc792010-07-05 15:56:50 +02001534config AUTO_ZRELADDR
1535 bool "Auto calculation of the decompressed kernel image address"
1536 depends on !ZBOOT_ROM && !ARCH_U300
1537 help
1538 ZRELADDR is the physical address where the decompressed kernel
1539 image will be placed. If AUTO_ZRELADDR is selected, the address
1540 will be determined at run-time by masking the current IP with
1541 0xf8000000. This assumes the zImage being placed in the first 128MB
1542 from start of memory.
1543
1544config ZRELADDR
1545 hex "Physical address of the decompressed kernel image"
1546 depends on !AUTO_ZRELADDR
1547 default 0x00008000 if ARCH_BCMRING ||\
1548 ARCH_CNS3XXX ||\
1549 ARCH_DOVE ||\
1550 ARCH_EBSA110 ||\
1551 ARCH_FOOTBRIDGE ||\
1552 ARCH_INTEGRATOR ||\
1553 ARCH_IOP13XX ||\
1554 ARCH_IOP33X ||\
1555 ARCH_IXP2000 ||\
1556 ARCH_IXP23XX ||\
1557 ARCH_IXP4XX ||\
1558 ARCH_KIRKWOOD ||\
1559 ARCH_KS8695 ||\
1560 ARCH_LOKI ||\
1561 ARCH_MMP ||\
1562 ARCH_MV78XX0 ||\
1563 ARCH_NOMADIK ||\
1564 ARCH_NUC93X ||\
1565 ARCH_NS9XXX ||\
1566 ARCH_ORION5X ||\
1567 ARCH_SPEAR3XX ||\
1568 ARCH_SPEAR6XX ||\
1569 ARCH_U8500 ||\
1570 ARCH_VERSATILE ||\
1571 ARCH_W90X900
1572 default 0x08008000 if ARCH_MX1 ||\
1573 ARCH_SHARK
1574 default 0x10008000 if ARCH_MSM ||\
1575 ARCH_OMAP1 ||\
1576 ARCH_RPC
1577 default 0x20008000 if ARCH_S5P6440 ||\
1578 ARCH_S5P6442 ||\
1579 ARCH_S5PC100 ||\
1580 ARCH_S5PV210
1581 default 0x30008000 if ARCH_S3C2410 ||\
1582 ARCH_S3C2400 ||\
1583 ARCH_S3C2412 ||\
1584 ARCH_S3C2416 ||\
1585 ARCH_S3C2440 ||\
1586 ARCH_S3C2443
1587 default 0x40008000 if ARCH_STMP378X ||\
1588 ARCH_STMP37XX ||\
1589 ARCH_SH7372 ||\
1590 ARCH_SH7377
1591 default 0x50008000 if ARCH_S3C64XX ||\
1592 ARCH_SH7367
1593 default 0x60008000 if ARCH_VEXPRESS
1594 default 0x80008000 if ARCH_MX25 ||\
1595 ARCH_MX3 ||\
1596 ARCH_NETX ||\
1597 ARCH_OMAP2PLUS ||\
1598 ARCH_PNX4008
1599 default 0x90008000 if ARCH_MX5 ||\
1600 ARCH_MX91231
1601 default 0xa0008000 if ARCH_IOP32X ||\
1602 ARCH_PXA ||\
1603 MACH_MX27
1604 default 0xc0008000 if ARCH_LH7A40X ||\
1605 MACH_MX21
1606 default 0xf0008000 if ARCH_AAEC2000 ||\
1607 ARCH_L7200
1608 default 0xc0028000 if ARCH_CLPS711X
1609 default 0x70008000 if ARCH_AT91 && (ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
1610 default 0x20008000 if ARCH_AT91 && !(ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
1611 default 0xc0008000 if ARCH_DAVINCI && ARCH_DAVINCI_DA8XX
1612 default 0x80008000 if ARCH_DAVINCI && !ARCH_DAVINCI_DA8XX
1613 default 0x00008000 if ARCH_EP93XX && EP93XX_SDCE3_SYNC_PHYS_OFFSET
1614 default 0xc0008000 if ARCH_EP93XX && EP93XX_SDCE0_PHYS_OFFSET
1615 default 0xd0008000 if ARCH_EP93XX && EP93XX_SDCE1_PHYS_OFFSET
1616 default 0xe0008000 if ARCH_EP93XX && EP93XX_SDCE2_PHYS_OFFSET
1617 default 0xf0008000 if ARCH_EP93XX && EP93XX_SDCE3_ASYNC_PHYS_OFFSET
1618 default 0x00008000 if ARCH_GEMINI && GEMINI_MEM_SWAP
1619 default 0x10008000 if ARCH_GEMINI && !GEMINI_MEM_SWAP
1620 default 0x70008000 if ARCH_REALVIEW && REALVIEW_HIGH_PHYS_OFFSET
1621 default 0x00008000 if ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET
1622 default 0xc0208000 if ARCH_SA1100 && SA1111
1623 default 0xc0008000 if ARCH_SA1100 && !SA1111
1624 default 0x30108000 if ARCH_S3C2410 && PM_H1940
1625 default 0x28E08000 if ARCH_U300 && MACH_U300_SINGLE_RAM
1626 default 0x48008000 if ARCH_U300 && !MACH_U300_SINGLE_RAM
1627 help
1628 ZRELADDR is the physical address where the decompressed kernel
1629 image will be placed. ZRELADDR has to be specified when the
1630 assumption of AUTO_ZRELADDR is not valid, or when ZBOOT_ROM is
1631 selected.
1632
Linus Torvalds1da177e2005-04-16 15:20:36 -07001633endmenu
1634
Russell Kingac9d7ef2008-08-18 17:26:00 +01001635menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001636
Ben Dooks89c52ed2009-07-30 23:23:24 +01001637if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001638
1639source "drivers/cpufreq/Kconfig"
1640
1641config CPU_FREQ_SA1100
1642 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001643
1644config CPU_FREQ_SA1110
1645 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001646
1647config CPU_FREQ_INTEGRATOR
1648 tristate "CPUfreq driver for ARM Integrator CPUs"
1649 depends on ARCH_INTEGRATOR && CPU_FREQ
1650 default y
1651 help
1652 This enables the CPUfreq driver for ARM Integrator CPUs.
1653
1654 For details, take a look at <file:Documentation/cpu-freq>.
1655
1656 If in doubt, say Y.
1657
Russell King9e2697f2007-12-14 13:30:14 +00001658config CPU_FREQ_PXA
1659 bool
1660 depends on CPU_FREQ && ARCH_PXA && PXA25x
1661 default y
1662 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1663
Mark Brownb3748dd2009-06-15 11:23:20 +01001664config CPU_FREQ_S3C64XX
1665 bool "CPUfreq support for Samsung S3C64XX CPUs"
1666 depends on CPU_FREQ && CPU_S3C6410
1667
Ben Dooks9d56c022009-07-30 23:23:25 +01001668config CPU_FREQ_S3C
1669 bool
1670 help
1671 Internal configuration node for common cpufreq on Samsung SoC
1672
1673config CPU_FREQ_S3C24XX
1674 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1675 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1676 select CPU_FREQ_S3C
1677 help
1678 This enables the CPUfreq driver for the Samsung S3C24XX family
1679 of CPUs.
1680
1681 For details, take a look at <file:Documentation/cpu-freq>.
1682
1683 If in doubt, say N.
1684
1685config CPU_FREQ_S3C24XX_PLL
1686 bool "Support CPUfreq changing of PLL frequency"
1687 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1688 help
1689 Compile in support for changing the PLL frequency from the
1690 S3C24XX series CPUfreq driver. The PLL takes time to settle
1691 after a frequency change, so by default it is not enabled.
1692
1693 This also means that the PLL tables for the selected CPU(s) will
1694 be built which may increase the size of the kernel image.
1695
1696config CPU_FREQ_S3C24XX_DEBUG
1697 bool "Debug CPUfreq Samsung driver core"
1698 depends on CPU_FREQ_S3C24XX
1699 help
1700 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1701
1702config CPU_FREQ_S3C24XX_IODEBUG
1703 bool "Debug CPUfreq Samsung driver IO timing"
1704 depends on CPU_FREQ_S3C24XX
1705 help
1706 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1707
Ben Dookse6d197a2009-07-30 23:23:42 +01001708config CPU_FREQ_S3C24XX_DEBUGFS
1709 bool "Export debugfs for CPUFreq"
1710 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1711 help
1712 Export status information via debugfs.
1713
Linus Torvalds1da177e2005-04-16 15:20:36 -07001714endif
1715
Russell Kingac9d7ef2008-08-18 17:26:00 +01001716source "drivers/cpuidle/Kconfig"
1717
1718endmenu
1719
Linus Torvalds1da177e2005-04-16 15:20:36 -07001720menu "Floating point emulation"
1721
1722comment "At least one emulation must be selected"
1723
1724config FPE_NWFPE
1725 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001726 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727 ---help---
1728 Say Y to include the NWFPE floating point emulator in the kernel.
1729 This is necessary to run most binaries. Linux does not currently
1730 support floating point hardware so you need to say Y here even if
1731 your machine has an FPA or floating point co-processor podule.
1732
1733 You may say N here if you are going to load the Acorn FPEmulator
1734 early in the bootup.
1735
1736config FPE_NWFPE_XP
1737 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001738 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001739 help
1740 Say Y to include 80-bit support in the kernel floating-point
1741 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1742 Note that gcc does not generate 80-bit operations by default,
1743 so in most cases this option only enlarges the size of the
1744 floating point emulator without any good reason.
1745
1746 You almost surely want to say N here.
1747
1748config FPE_FASTFPE
1749 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001750 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001751 ---help---
1752 Say Y here to include the FAST floating point emulator in the kernel.
1753 This is an experimental much faster emulator which now also has full
1754 precision for the mantissa. It does not support any exceptions.
1755 It is very simple, and approximately 3-6 times faster than NWFPE.
1756
1757 It should be sufficient for most programs. It may be not suitable
1758 for scientific calculations, but you have to check this for yourself.
1759 If you do not feel you need a faster FP emulation you should better
1760 choose NWFPE.
1761
1762config VFP
1763 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001764 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765 help
1766 Say Y to include VFP support code in the kernel. This is needed
1767 if your hardware includes a VFP unit.
1768
1769 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1770 release notes and additional status information.
1771
1772 Say N if your target does not have VFP hardware.
1773
Catalin Marinas25ebee02007-09-25 15:22:24 +01001774config VFPv3
1775 bool
1776 depends on VFP
1777 default y if CPU_V7
1778
Catalin Marinasb5872db2008-01-10 19:16:17 +01001779config NEON
1780 bool "Advanced SIMD (NEON) Extension support"
1781 depends on VFPv3 && CPU_V7
1782 help
1783 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1784 Extension.
1785
Linus Torvalds1da177e2005-04-16 15:20:36 -07001786endmenu
1787
1788menu "Userspace binary formats"
1789
1790source "fs/Kconfig.binfmt"
1791
1792config ARTHUR
1793 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001794 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001795 help
1796 Say Y here to include the kernel code necessary if you want to run
1797 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1798 experimental; if this sounds frightening, say N and sleep in peace.
1799 You can also say M here to compile this support as a module (which
1800 will be called arthur).
1801
1802endmenu
1803
1804menu "Power management options"
1805
Russell Kingeceab4a2005-11-15 11:31:41 +00001806source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001807
Johannes Bergf4cb5702007-12-08 02:14:00 +01001808config ARCH_SUSPEND_POSSIBLE
1809 def_bool y
1810
Linus Torvalds1da177e2005-04-16 15:20:36 -07001811endmenu
1812
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001813source "net/Kconfig"
1814
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001815source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001816
1817source "fs/Kconfig"
1818
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819source "arch/arm/Kconfig.debug"
1820
1821source "security/Kconfig"
1822
1823source "crypto/Kconfig"
1824
1825source "lib/Kconfig"