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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
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100565config ARCH_PNX4008
566 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000567 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000568 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000569 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100570 help
571 This enables support for Philips PNX4008 mobile platform.
572
Linus Torvalds1da177e2005-04-16 15:20:36 -0700573config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700574 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100575 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500576 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100577 select ARCH_HAS_CPUFREQ
Russell King8c3abc72008-11-08 20:25:21 +0000578 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700579 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100580 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000581 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800582 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000583 help
eric miao2c8086a2007-09-11 19:13:17 -0700584 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585
Russell King788c9702009-04-26 14:21:59 +0100586config ARCH_MSM
587 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500588 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800589 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700590 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800591 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800592 Support for Qualcomm MSM/QSD based systems. This runs on the
593 apps processor of the MSM/QSD and depends on a shared memory
594 interface to the modem processor which runs the baseband
595 stack and controls some vital subsystems
596 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800597
Magnus Dammc793c1b2010-02-05 11:14:49 +0000598config ARCH_SHMOBILE
599 bool "Renesas SH-Mobile"
600 help
601 Support for Renesas's SH-Mobile ARM platforms
602
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603config ARCH_RPC
604 bool "RiscPC"
605 select ARCH_ACORN
606 select FIQ
607 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100608 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100609 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000610 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000611 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100612 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000613 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614 help
615 On the Acorn Risc-PC, Linux can support the internal IDE disk and
616 CD-ROM interface, serial and parallel port, and the floppy drive.
617
618config ARCH_SA1100
619 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000620 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100621 select ISA
Russell King05944d72006-11-30 20:43:51 +0000622 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500623 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100624 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000625 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100626 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700627 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100628 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700629 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000630 help
631 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632
633config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900634 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800635 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100636 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700637 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000638 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900639 select HAVE_S3C2410_I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640 help
641 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
642 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000643 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644
Ben Dooks63b1f512010-04-30 16:32:26 +0900645 Note, the S3C2416 and the S3C2450 are so close that they even share
646 the same SoC ID code. This means that there is no seperate machine
647 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
648
Ben Dooksa08ab632008-10-21 14:06:39 +0100649config ARCH_S3C64XX
650 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000651 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900652 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900653 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100654 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900655 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000656 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100657 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900658 select ARCH_REQUIRE_GPIOLIB
659 select SAMSUNG_CLKSRC
660 select SAMSUNG_IRQ_VIC_TIMER
661 select SAMSUNG_IRQ_UART
662 select S3C_GPIO_TRACK
663 select S3C_GPIO_PULL_UPDOWN
664 select S3C_GPIO_CFG_S3C24XX
665 select S3C_GPIO_CFG_S3C64XX
666 select S3C_DEV_NAND
667 select USB_ARCH_HAS_OHCI
668 select SAMSUNG_GPIOLIB_4BIT
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900669 select HAVE_S3C2410_I2C
Banajit Goswamid8653d92010-07-29 22:22:40 +0900670 select HAVE_S3C2410_WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100671 help
672 Samsung S3C64XX series based systems
673
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900674config ARCH_S5P6440
675 bool "Samsung S5P6440"
676 select CPU_V6
677 select GENERIC_GPIO
678 select HAVE_CLK
Banajit Goswamid8653d92010-07-29 22:22:40 +0900679 select HAVE_S3C2410_WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900680 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900681 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900682 select HAVE_S3C_RTC
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900683 help
684 Samsung S5P6440 CPU based systems
685
Kukjin Kim550db7f2010-01-29 10:19:26 +0900686config ARCH_S5P6442
687 bool "Samsung S5P6442"
688 select CPU_V6
689 select GENERIC_GPIO
690 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900691 select ARCH_USES_GETTIMEOFFSET
Banajit Goswamid8653d92010-07-29 22:22:40 +0900692 select HAVE_S3C2410_WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900693 help
694 Samsung S5P6442 CPU based systems
695
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200696config ARCH_S5PC100
697 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900698 select GENERIC_GPIO
699 select HAVE_CLK
700 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100701 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900702 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900703 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900704 select HAVE_S3C_RTC
Banajit Goswamid8653d92010-07-29 22:22:40 +0900705 select HAVE_S3C2410_WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900706 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200707 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900708
Kukjin Kim170f4e42010-02-24 16:40:44 +0900709config ARCH_S5PV210
710 bool "Samsung S5PV210/S5PC110"
711 select CPU_V7
712 select GENERIC_GPIO
713 select HAVE_CLK
714 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900715 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900716 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900717 select HAVE_S3C_RTC
Banajit Goswamid8653d92010-07-29 22:22:40 +0900718 select HAVE_S3C2410_WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900719 help
720 Samsung S5PV210/S5PC110 series based systems
721
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900722config ARCH_S5PV310
723 bool "Samsung S5PV310/S5PC210"
724 select CPU_V7
725 select GENERIC_GPIO
726 select HAVE_CLK
727 select GENERIC_CLOCKEVENTS
728 help
729 Samsung S5PV310 series based systems
730
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731config ARCH_SHARK
732 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000733 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100734 select ISA
735 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100736 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100737 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000738 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000739 help
740 Support for the StrongARM based Digital DNARD machine, also known
741 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742
743config ARCH_LH7A40X
744 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000745 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100746 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000747 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748 help
749 Say Y here for systems based on one of the Sharp LH7A40X
750 System on a Chip processors. These CPUs include an ARM922T
751 core with a wide array of integrated devices for
752 hand-held and low-power applications.
753
Linus Walleijd98aac72009-04-27 10:21:46 +0100754config ARCH_U300
755 bool "ST-Ericsson U300 Series"
756 depends on MMU
757 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100758 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100759 select ARM_AMBA
760 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100761 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100762 select COMMON_CLKDEV
763 select GENERIC_GPIO
764 help
765 Support for ST-Ericsson U300 series mobile platforms.
766
Russell Kingccf50e22010-03-15 19:03:06 +0000767config ARCH_U8500
768 bool "ST-Ericsson U8500 Series"
769 select CPU_V7
770 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000771 select GENERIC_CLOCKEVENTS
772 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100773 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000774 help
775 Support for ST-Ericsson's Ux500 architecture
776
777config ARCH_NOMADIK
778 bool "STMicroelectronics Nomadik"
779 select ARM_AMBA
780 select ARM_VIC
781 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000782 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000783 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000784 select ARCH_REQUIRE_GPIOLIB
785 help
786 Support for the Nomadik platform by ST-Ericsson
787
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100788config ARCH_DAVINCI
789 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100790 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700791 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100792 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700793 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700794 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700795 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530796 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100797 help
798 Support for TI's DaVinci platform.
799
Russell King3b938be2007-05-12 11:25:44 +0100800config ARCH_OMAP
801 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700802 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700803 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100804 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700805 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800806 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100807 help
808 Support for TI's OMAP platform (OMAP1 and OMAP2).
809
viresh kumarcee37e52010-04-01 12:31:05 +0100810config PLAT_SPEAR
811 bool "ST SPEAr"
812 select ARM_AMBA
813 select ARCH_REQUIRE_GPIOLIB
814 select COMMON_CLKDEV
815 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100816 select HAVE_CLK
817 help
818 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
819
Linus Torvalds1da177e2005-04-16 15:20:36 -0700820endchoice
821
Russell Kingccf50e22010-03-15 19:03:06 +0000822#
823# This is sorted alphabetically by mach-* pathname. However, plat-*
824# Kconfigs may be included either alphabetically (according to the
825# plat- suffix) or along side the corresponding mach-* source.
826#
Russell King95b8f202010-01-14 11:43:54 +0000827source "arch/arm/mach-aaec2000/Kconfig"
828
829source "arch/arm/mach-at91/Kconfig"
830
831source "arch/arm/mach-bcmring/Kconfig"
832
Linus Torvalds1da177e2005-04-16 15:20:36 -0700833source "arch/arm/mach-clps711x/Kconfig"
834
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300835source "arch/arm/mach-cns3xxx/Kconfig"
836
Russell King95b8f202010-01-14 11:43:54 +0000837source "arch/arm/mach-davinci/Kconfig"
838
839source "arch/arm/mach-dove/Kconfig"
840
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000841source "arch/arm/mach-ep93xx/Kconfig"
842
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843source "arch/arm/mach-footbridge/Kconfig"
844
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200845source "arch/arm/mach-gemini/Kconfig"
846
Russell King95b8f202010-01-14 11:43:54 +0000847source "arch/arm/mach-h720x/Kconfig"
848
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849source "arch/arm/mach-integrator/Kconfig"
850
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100851source "arch/arm/mach-iop32x/Kconfig"
852
853source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854
Dan Williams285f5fa2006-12-07 02:59:39 +0100855source "arch/arm/mach-iop13xx/Kconfig"
856
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857source "arch/arm/mach-ixp4xx/Kconfig"
858
859source "arch/arm/mach-ixp2000/Kconfig"
860
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100861source "arch/arm/mach-ixp23xx/Kconfig"
862
Russell King95b8f202010-01-14 11:43:54 +0000863source "arch/arm/mach-kirkwood/Kconfig"
864
865source "arch/arm/mach-ks8695/Kconfig"
866
867source "arch/arm/mach-lh7a40x/Kconfig"
868
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200869source "arch/arm/mach-loki/Kconfig"
870
Kevin Wells40805942010-07-27 08:49:04 -0700871source "arch/arm/mach-lpc32xx/Kconfig"
872
Russell King95b8f202010-01-14 11:43:54 +0000873source "arch/arm/mach-msm/Kconfig"
874
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200875source "arch/arm/mach-mv78xx0/Kconfig"
876
Russell King95b8f202010-01-14 11:43:54 +0000877source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878
Russell King95b8f202010-01-14 11:43:54 +0000879source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800880
Russell King95b8f202010-01-14 11:43:54 +0000881source "arch/arm/mach-nomadik/Kconfig"
882source "arch/arm/plat-nomadik/Kconfig"
883
884source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885
Russell Kingd91a89102010-02-04 18:13:17 +0000886source "arch/arm/mach-nuc93x/Kconfig"
887
Tony Lindgrend48af152005-07-10 19:58:17 +0100888source "arch/arm/plat-omap/Kconfig"
889
890source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891
Tony Lindgren1dbae812005-11-10 14:26:51 +0000892source "arch/arm/mach-omap2/Kconfig"
893
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400894source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400895
Russell King95b8f202010-01-14 11:43:54 +0000896source "arch/arm/mach-pxa/Kconfig"
897source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898
Russell King95b8f202010-01-14 11:43:54 +0000899source "arch/arm/mach-mmp/Kconfig"
900
901source "arch/arm/mach-realview/Kconfig"
902
903source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300904
Ben Dookscf383672009-11-10 00:14:58 +0000905source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100906source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900907source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100908
viresh kumarcee37e52010-04-01 12:31:05 +0100909source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100910
911if ARCH_S3C2410
912source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100914source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900915source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100916source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100917source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100918endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919
Ben Dooksa08ab632008-10-21 14:06:39 +0100920if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900921source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100922endif
923
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900924source "arch/arm/mach-s5p6440/Kconfig"
925
Kukjin Kim550db7f2010-01-29 10:19:26 +0900926source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100927
Byungho Min5a7652f2009-06-23 21:39:42 +0900928source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900929
Kukjin Kim170f4e42010-02-24 16:40:44 +0900930source "arch/arm/mach-s5pv210/Kconfig"
931
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900932source "arch/arm/mach-s5pv310/Kconfig"
933
Russell King882d01f2010-03-02 23:40:15 +0000934source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935
Russell King882d01f2010-03-02 23:40:15 +0000936source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800937
Russell King95b8f202010-01-14 11:43:54 +0000938source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100939
Russell King95b8f202010-01-14 11:43:54 +0000940source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941
942source "arch/arm/mach-versatile/Kconfig"
943
Russell Kingceade892010-02-11 21:44:53 +0000944source "arch/arm/mach-vexpress/Kconfig"
945
wanzongshun7ec80dd2008-12-03 03:55:38 +0100946source "arch/arm/mach-w90x900/Kconfig"
947
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948# Definitions to make life easier
949config ARCH_ACORN
950 bool
951
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100952config PLAT_IOP
953 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700954 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100955
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400956config PLAT_ORION
957 bool
958
Eric Miaobd5ce432009-01-20 12:06:01 +0800959config PLAT_PXA
960 bool
961
Russell Kingf4b8b312010-01-14 12:48:06 +0000962config PLAT_VERSATILE
963 bool
964
Russell Kinge3887712010-01-14 13:30:16 +0000965config ARM_TIMER_SP804
966 bool
967
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968source arch/arm/mm/Kconfig
969
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100970config IWMMXT
971 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800972 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
973 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100974 help
975 Enable support for iWMMXt context switching at run time if
976 running on a CPU that supports it.
977
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
979config XSCALE_PMU
980 bool
981 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
982 default y
983
Jamie Iles0f4f0672010-02-02 20:23:15 +0100984config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +0100985 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
986 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +0100987 default y
988 bool
989
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100990if !MMU
991source "arch/arm/Kconfig-nommu"
992endif
993
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100994config ARM_ERRATA_411920
995 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
996 depends on CPU_V6 && !SMP
997 help
998 Invalidation of the Instruction Cache operation can
999 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1000 It does not affect the MPCore. This option enables the ARM Ltd.
1001 recommended workaround.
1002
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001003config ARM_ERRATA_430973
1004 bool "ARM errata: Stale prediction on replaced interworking branch"
1005 depends on CPU_V7
1006 help
1007 This option enables the workaround for the 430973 Cortex-A8
1008 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1009 interworking branch is replaced with another code sequence at the
1010 same virtual address, whether due to self-modifying code or virtual
1011 to physical address re-mapping, Cortex-A8 does not recover from the
1012 stale interworking branch prediction. This results in Cortex-A8
1013 executing the new code sequence in the incorrect ARM or Thumb state.
1014 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1015 and also flushes the branch target cache at every context switch.
1016 Note that setting specific bits in the ACTLR register may not be
1017 available in non-secure mode.
1018
Catalin Marinas855c5512009-04-30 17:06:15 +01001019config ARM_ERRATA_458693
1020 bool "ARM errata: Processor deadlock when a false hazard is created"
1021 depends on CPU_V7
1022 help
1023 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1024 erratum. For very specific sequences of memory operations, it is
1025 possible for a hazard condition intended for a cache line to instead
1026 be incorrectly associated with a different cache line. This false
1027 hazard might then cause a processor deadlock. The workaround enables
1028 the L1 caching of the NEON accesses and disables the PLD instruction
1029 in the ACTLR register. Note that setting specific bits in the ACTLR
1030 register may not be available in non-secure mode.
1031
Catalin Marinas0516e462009-04-30 17:06:20 +01001032config ARM_ERRATA_460075
1033 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1034 depends on CPU_V7
1035 help
1036 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1037 erratum. Any asynchronous access to the L2 cache may encounter a
1038 situation in which recent store transactions to the L2 cache are lost
1039 and overwritten with stale memory contents from external memory. The
1040 workaround disables the write-allocate mode for the L2 cache via the
1041 ACTLR register. Note that setting specific bits in the ACTLR register
1042 may not be available in non-secure mode.
1043
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001044config PL310_ERRATA_588369
1045 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1046 depends on CACHE_L2X0 && ARCH_OMAP4
1047 help
1048 The PL310 L2 cache controller implements three types of Clean &
1049 Invalidate maintenance operations: by Physical Address
1050 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1051 They are architecturally defined to behave as the execution of a
1052 clean operation followed immediately by an invalidate operation,
1053 both performing to the same memory location. This functionality
1054 is not correctly implemented in PL310 as clean lines are not
1055 invalidated as a result of these operations. Note that this errata
1056 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001057endmenu
1058
1059source "arch/arm/common/Kconfig"
1060
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061menu "Bus support"
1062
1063config ARM_AMBA
1064 bool
1065
1066config ISA
1067 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068 help
1069 Find out whether you have ISA slots on your motherboard. ISA is the
1070 name of a bus system, i.e. the way the CPU talks to the other stuff
1071 inside your box. Other bus systems are PCI, EISA, MicroChannel
1072 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1073 newer boards don't support it. If you have ISA, say Y, otherwise N.
1074
Russell King065909b2006-01-04 15:44:16 +00001075# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076config ISA_DMA
1077 bool
Russell King065909b2006-01-04 15:44:16 +00001078 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079
Russell King065909b2006-01-04 15:44:16 +00001080# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001081config ISA_DMA_API
1082 bool
Al Viro5cae8412005-05-04 05:39:22 +01001083
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084config PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +04001085 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 -07001086 help
1087 Find out whether you have a PCI motherboard. PCI is the name of a
1088 bus system, i.e. the way the CPU talks to the other stuff inside
1089 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1090 VESA. If you have PCI, say Y, otherwise N.
1091
Anton Vorontsov52882172010-04-19 13:20:49 +01001092config PCI_DOMAINS
1093 bool
1094 depends on PCI
1095
Matthew Wilcox36e23592007-07-10 10:54:40 -06001096config PCI_SYSCALL
1097 def_bool PCI
1098
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099# Select the host bridge type
1100config PCI_HOST_VIA82C505
1101 bool
1102 depends on PCI && ARCH_SHARK
1103 default y
1104
Mike Rapoporta0113a92007-11-25 08:55:34 +01001105config PCI_HOST_ITE8152
1106 bool
1107 depends on PCI && MACH_ARMCORE
1108 default y
1109 select DMABOUNCE
1110
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111source "drivers/pci/Kconfig"
1112
1113source "drivers/pcmcia/Kconfig"
1114
1115endmenu
1116
1117menu "Kernel Features"
1118
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001119source "kernel/time/Kconfig"
1120
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121config SMP
1122 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001123 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Russell King59ac59f2010-02-11 21:56:07 +00001124 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001125 ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_S5PV310)
Russell Kingbc282482009-05-17 18:58:34 +01001126 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001127 select USE_GENERIC_SMP_HELPERS
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001128 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 ||\
1129 ARCH_S5PV310)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001130 help
1131 This enables support for systems with more than one CPU. If you have
1132 a system with only one CPU, like most personal computers, say N. If
1133 you have a system with more than one CPU, say Y.
1134
1135 If you say N here, the kernel will run on single and multiprocessor
1136 machines, but will use only one CPU of a multiprocessor machine. If
1137 you say Y here, the kernel will run on many, but not all, single
1138 processor machines. On a single processor machine, the kernel will
1139 run faster if you say N here.
1140
Adrian Bunk03502fa2008-02-03 15:50:21 +02001141 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1143 <http://www.linuxdoc.org/docs.html#howto>.
1144
1145 If you don't know what to do here, say N.
1146
Russell Kinga8cbcd92009-05-16 11:51:14 +01001147config HAVE_ARM_SCU
1148 bool
1149 depends on SMP
1150 help
1151 This option enables support for the ARM system coherency unit
1152
Russell Kingf32f4ce2009-05-16 12:14:21 +01001153config HAVE_ARM_TWD
1154 bool
1155 depends on SMP
1156 help
1157 This options enables support for the ARM timer and watchdog unit
1158
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001159choice
1160 prompt "Memory split"
1161 default VMSPLIT_3G
1162 help
1163 Select the desired split between kernel and user memory.
1164
1165 If you are not absolutely sure what you are doing, leave this
1166 option alone!
1167
1168 config VMSPLIT_3G
1169 bool "3G/1G user/kernel split"
1170 config VMSPLIT_2G
1171 bool "2G/2G user/kernel split"
1172 config VMSPLIT_1G
1173 bool "1G/3G user/kernel split"
1174endchoice
1175
1176config PAGE_OFFSET
1177 hex
1178 default 0x40000000 if VMSPLIT_1G
1179 default 0x80000000 if VMSPLIT_2G
1180 default 0xC0000000
1181
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182config NR_CPUS
1183 int "Maximum number of CPUs (2-32)"
1184 range 2 32
1185 depends on SMP
1186 default "4"
1187
Russell Kinga054a812005-11-02 22:24:33 +00001188config HOTPLUG_CPU
1189 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1190 depends on SMP && HOTPLUG && EXPERIMENTAL
1191 help
1192 Say Y here to experiment with turning CPUs off and on. CPUs
1193 can be controlled through /sys/devices/system/cpu.
1194
Russell King37ee16a2005-11-08 19:08:05 +00001195config LOCAL_TIMERS
1196 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001197 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Will Deaconbde28b82010-07-09 13:52:09 +01001198 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Russell King21924822010-08-09 14:07:19 +01001199 ARCH_S5PV310 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
1200 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 || \
1201 ARCH_U8500 || ARCH_VEXPRESS)
Russell King37ee16a2005-11-08 19:08:05 +00001202 help
1203 Enable support for local timers on SMP platforms, rather then the
1204 legacy IPI broadcast method. Local timers allows the system
1205 accounting to be spread across the timer interval, preventing a
1206 "thundering herd" at every timer tick.
1207
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001208source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209
Russell Kingf8065812006-03-02 22:41:59 +00001210config HZ
1211 int
Russell King21924822010-08-09 14:07:19 +01001212 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || \
1213 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001214 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001215 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001216 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001217 default 100
1218
Catalin Marinas16c79652009-07-24 12:33:02 +01001219config THUMB2_KERNEL
1220 bool "Compile the kernel in Thumb-2 mode"
1221 depends on CPU_V7 && EXPERIMENTAL
1222 select AEABI
1223 select ARM_ASM_UNIFIED
1224 help
1225 By enabling this option, the kernel will be compiled in
1226 Thumb-2 mode. A compiler/assembler that understand the unified
1227 ARM-Thumb syntax is needed.
1228
1229 If unsure, say N.
1230
Catalin Marinas0becb082009-07-24 12:32:53 +01001231config ARM_ASM_UNIFIED
1232 bool
1233
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001234config AEABI
1235 bool "Use the ARM EABI to compile the kernel"
1236 help
1237 This option allows for the kernel to be compiled using the latest
1238 ARM ABI (aka EABI). This is only useful if you are using a user
1239 space environment that is also compiled with EABI.
1240
1241 Since there are major incompatibilities between the legacy ABI and
1242 EABI, especially with regard to structure member alignment, this
1243 option also changes the kernel syscall calling convention to
1244 disambiguate both ABIs and allow for backward compatibility support
1245 (selected with CONFIG_OABI_COMPAT).
1246
1247 To use this you need GCC version 4.0.0 or later.
1248
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001249config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001250 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001251 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001252 default y
1253 help
1254 This option preserves the old syscall interface along with the
1255 new (ARM EABI) one. It also provides a compatibility layer to
1256 intercept syscalls that have structure arguments which layout
1257 in memory differs between the legacy ABI and the new ARM EABI
1258 (only for non "thumb" binaries). This option adds a tiny
1259 overhead to all syscalls and produces a slightly larger kernel.
1260 If you know you'll be using only pure EABI user space then you
1261 can say N here. If this option is not selected and you attempt
1262 to execute a legacy ABI binary then the result will be
1263 UNPREDICTABLE (in fact it can be predicted that it won't work
1264 at all). If in doubt say Y.
1265
Mel Gormaneb335752009-05-13 17:34:48 +01001266config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001267 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001268
Russell King05944d72006-11-30 20:43:51 +00001269config ARCH_SPARSEMEM_ENABLE
1270 bool
1271
Russell King07a2f732008-10-01 21:39:58 +01001272config ARCH_SPARSEMEM_DEFAULT
1273 def_bool ARCH_SPARSEMEM_ENABLE
1274
Russell King05944d72006-11-30 20:43:51 +00001275config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001276 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001277
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001278config HIGHMEM
1279 bool "High Memory Support (EXPERIMENTAL)"
1280 depends on MMU && EXPERIMENTAL
1281 help
1282 The address space of ARM processors is only 4 Gigabytes large
1283 and it has to accommodate user address space, kernel address
1284 space as well as some memory mapped IO. That means that, if you
1285 have a large amount of physical memory and/or IO, not all of the
1286 memory can be "permanently mapped" by the kernel. The physical
1287 memory that is not permanently mapped is called "high memory".
1288
1289 Depending on the selected kernel/user memory split, minimum
1290 vmalloc space and actual amount of RAM, you may not need this
1291 option which should result in a slightly faster kernel.
1292
1293 If unsure, say n.
1294
Russell King65cec8e2009-08-17 20:02:06 +01001295config HIGHPTE
1296 bool "Allocate 2nd-level pagetables from highmem"
1297 depends on HIGHMEM
1298 depends on !OUTER_CACHE
1299
Jamie Iles1b8873a2010-02-02 20:25:44 +01001300config HW_PERF_EVENTS
1301 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001302 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001303 default y
1304 help
1305 Enable hardware performance counter support for perf events. If
1306 disabled, perf events will use software events only.
1307
eric miao354e6f72010-06-25 09:46:09 +01001308config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001309 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001310 help
1311 This enables support for sparse irqs. This is useful in general
1312 as most CPUs have a fairly sparse array of IRQ vectors, which
1313 the irq_desc then maps directly on to. Systems with a high
1314 number of off-chip IRQs will want to treat this as
1315 experimental until they have been independently verified.
1316
Dave Hansen3f22ab22005-06-23 00:07:43 -07001317source "mm/Kconfig"
1318
Magnus Dammc1b2d972010-07-05 10:00:11 +01001319config FORCE_MAX_ZONEORDER
1320 int "Maximum zone order" if ARCH_SHMOBILE
1321 range 11 64 if ARCH_SHMOBILE
1322 default "9" if SA1111
1323 default "11"
1324 help
1325 The kernel memory allocator divides physically contiguous memory
1326 blocks into "zones", where each zone is a power of two number of
1327 pages. This option selects the largest power of two that the kernel
1328 keeps in the memory allocator. If you need to allocate very large
1329 blocks of physically contiguous memory, then you may need to
1330 increase this value.
1331
1332 This config option is actually maximum order plus one. For example,
1333 a value of 11 means that the largest free memory block is 2^10 pages.
1334
Linus Torvalds1da177e2005-04-16 15:20:36 -07001335config LEDS
1336 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001337 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001338 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1340 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001341 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001342 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001343 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344 help
1345 If you say Y here, the LEDs on your machine will be used
1346 to provide useful information about your current system status.
1347
1348 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1349 be able to select which LEDs are active using the options below. If
1350 you are compiling a kernel for the EBSA-110 or the LART however, the
1351 red LED will simply flash regularly to indicate that the system is
1352 still functional. It is safe to say Y here if you have a CATS
1353 system, but the driver will do nothing.
1354
1355config LEDS_TIMER
1356 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001357 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1358 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001359 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001360 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361 default y if ARCH_EBSA110
1362 help
1363 If you say Y here, one of the system LEDs (the green one on the
1364 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1365 will flash regularly to indicate that the system is still
1366 operational. This is mainly useful to kernel hackers who are
1367 debugging unstable kernels.
1368
1369 The LART uses the same LED for both Timer LED and CPU usage LED
1370 functions. You may choose to use both, but the Timer LED function
1371 will overrule the CPU usage LED.
1372
1373config LEDS_CPU
1374 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001375 !ARCH_OMAP) \
1376 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1377 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378 depends on LEDS
1379 help
1380 If you say Y here, the red LED will be used to give a good real
1381 time indication of CPU usage, by lighting whenever the idle task
1382 is not currently executing.
1383
1384 The LART uses the same LED for both Timer LED and CPU usage LED
1385 functions. You may choose to use both, but the Timer LED function
1386 will overrule the CPU usage LED.
1387
1388config ALIGNMENT_TRAP
1389 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001390 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001391 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001392 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001394 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1396 address divisible by 4. On 32-bit ARM processors, these non-aligned
1397 fetch/store instructions will be emulated in software if you say
1398 here, which has a severe performance impact. This is necessary for
1399 correct operation of some network protocols. With an IP-only
1400 configuration it is safe to say N, otherwise say Y.
1401
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001402config UACCESS_WITH_MEMCPY
1403 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1404 depends on MMU && EXPERIMENTAL
1405 default y if CPU_FEROCEON
1406 help
1407 Implement faster copy_to_user and clear_user methods for CPU
1408 cores where a 8-word STM instruction give significantly higher
1409 memory write throughput than a sequence of individual 32bit stores.
1410
1411 A possible side effect is a slight increase in scheduling latency
1412 between threads sharing the same address space if they invoke
1413 such copy operations with large buffers.
1414
1415 However, if the CPU data cache is using a write-allocate mode,
1416 this option is unlikely to provide any performance gain.
1417
Nicolas Pitrec743f382010-05-24 23:55:42 -04001418config CC_STACKPROTECTOR
1419 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1420 help
1421 This option turns on the -fstack-protector GCC feature. This
1422 feature puts, at the beginning of functions, a canary value on
1423 the stack just before the return address, and validates
1424 the value just before actually returning. Stack based buffer
1425 overflows (that need to overwrite this return address) now also
1426 overwrite the canary, which gets detected and the attack is then
1427 neutralized via a kernel panic.
1428 This feature requires gcc version 4.2 or above.
1429
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001430config DEPRECATED_PARAM_STRUCT
1431 bool "Provide old way to pass kernel parameters"
1432 help
1433 This was deprecated in 2001 and announced to live on for 5 years.
1434 Some old boot loaders still use this way.
1435
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436endmenu
1437
1438menu "Boot options"
1439
1440# Compressed boot loader in ROM. Yes, we really want to ask about
1441# TEXT and BSS so we preserve their values in the config files.
1442config ZBOOT_ROM_TEXT
1443 hex "Compressed ROM boot loader base address"
1444 default "0"
1445 help
1446 The physical address at which the ROM-able zImage is to be
1447 placed in the target. Platforms which normally make use of
1448 ROM-able zImage formats normally set this to a suitable
1449 value in their defconfig file.
1450
1451 If ZBOOT_ROM is not enabled, this has no effect.
1452
1453config ZBOOT_ROM_BSS
1454 hex "Compressed ROM boot loader BSS address"
1455 default "0"
1456 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001457 The base address of an area of read/write memory in the target
1458 for the ROM-able zImage which must be available while the
1459 decompressor is running. It must be large enough to hold the
1460 entire decompressed kernel plus an additional 128 KiB.
1461 Platforms which normally make use of ROM-able zImage formats
1462 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001463
1464 If ZBOOT_ROM is not enabled, this has no effect.
1465
1466config ZBOOT_ROM
1467 bool "Compressed boot loader in ROM/flash"
1468 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1469 help
1470 Say Y here if you intend to execute your compressed kernel image
1471 (zImage) directly from ROM or flash. If unsure, say N.
1472
1473config CMDLINE
1474 string "Default kernel command string"
1475 default ""
1476 help
1477 On some architectures (EBSA110 and CATS), there is currently no way
1478 for the boot loader to pass arguments to the kernel. For these
1479 architectures, you should supply some command-line options at build
1480 time by entering them here. As a minimum, you should specify the
1481 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1482
Alexander Holler92d20402010-02-16 19:04:53 +01001483config CMDLINE_FORCE
1484 bool "Always use the default kernel command string"
1485 depends on CMDLINE != ""
1486 help
1487 Always use the default kernel command string, even if the boot
1488 loader passes other arguments to the kernel.
1489 This is useful if you cannot or don't want to change the
1490 command-line options your boot loader passes to the kernel.
1491
1492 If unsure, say N.
1493
Linus Torvalds1da177e2005-04-16 15:20:36 -07001494config XIP_KERNEL
1495 bool "Kernel Execute-In-Place from ROM"
1496 depends on !ZBOOT_ROM
1497 help
1498 Execute-In-Place allows the kernel to run from non-volatile storage
1499 directly addressable by the CPU, such as NOR flash. This saves RAM
1500 space since the text section of the kernel is not loaded from flash
1501 to RAM. Read-write sections, such as the data section and stack,
1502 are still copied to RAM. The XIP kernel is not compressed since
1503 it has to run directly from flash, so it will take more space to
1504 store it. The flash address used to link the kernel object files,
1505 and for storing it, is configuration dependent. Therefore, if you
1506 say Y here, you must know the proper physical address where to
1507 store the kernel image depending on your own flash memory usage.
1508
1509 Also note that the make target becomes "make xipImage" rather than
1510 "make zImage" or "make Image". The final kernel binary to put in
1511 ROM memory will be arch/arm/boot/xipImage.
1512
1513 If unsure, say N.
1514
1515config XIP_PHYS_ADDR
1516 hex "XIP Kernel Physical Location"
1517 depends on XIP_KERNEL
1518 default "0x00080000"
1519 help
1520 This is the physical address in your flash memory the kernel will
1521 be linked for and stored to. This address is dependent on your
1522 own flash usage.
1523
Richard Purdiec587e4a2007-02-06 21:29:00 +01001524config KEXEC
1525 bool "Kexec system call (EXPERIMENTAL)"
1526 depends on EXPERIMENTAL
1527 help
1528 kexec is a system call that implements the ability to shutdown your
1529 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001530 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001531 you can start any kernel with it, not just Linux.
1532
1533 It is an ongoing process to be certain the hardware in a machine
1534 is properly shutdown, so do not be surprised if this code does not
1535 initially work for you. It may help to enable device hotplugging
1536 support.
1537
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001538config ATAGS_PROC
1539 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001540 depends on KEXEC
1541 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001542 help
1543 Should the atags used to boot the kernel be exported in an "atags"
1544 file in procfs. Useful with kexec.
1545
Eric Miaoe69edc792010-07-05 15:56:50 +02001546config AUTO_ZRELADDR
1547 bool "Auto calculation of the decompressed kernel image address"
1548 depends on !ZBOOT_ROM && !ARCH_U300
1549 help
1550 ZRELADDR is the physical address where the decompressed kernel
1551 image will be placed. If AUTO_ZRELADDR is selected, the address
1552 will be determined at run-time by masking the current IP with
1553 0xf8000000. This assumes the zImage being placed in the first 128MB
1554 from start of memory.
1555
1556config ZRELADDR
1557 hex "Physical address of the decompressed kernel image"
1558 depends on !AUTO_ZRELADDR
1559 default 0x00008000 if ARCH_BCMRING ||\
1560 ARCH_CNS3XXX ||\
1561 ARCH_DOVE ||\
1562 ARCH_EBSA110 ||\
1563 ARCH_FOOTBRIDGE ||\
1564 ARCH_INTEGRATOR ||\
1565 ARCH_IOP13XX ||\
1566 ARCH_IOP33X ||\
1567 ARCH_IXP2000 ||\
1568 ARCH_IXP23XX ||\
1569 ARCH_IXP4XX ||\
1570 ARCH_KIRKWOOD ||\
1571 ARCH_KS8695 ||\
1572 ARCH_LOKI ||\
1573 ARCH_MMP ||\
1574 ARCH_MV78XX0 ||\
1575 ARCH_NOMADIK ||\
1576 ARCH_NUC93X ||\
1577 ARCH_NS9XXX ||\
1578 ARCH_ORION5X ||\
1579 ARCH_SPEAR3XX ||\
1580 ARCH_SPEAR6XX ||\
1581 ARCH_U8500 ||\
1582 ARCH_VERSATILE ||\
1583 ARCH_W90X900
1584 default 0x08008000 if ARCH_MX1 ||\
1585 ARCH_SHARK
1586 default 0x10008000 if ARCH_MSM ||\
1587 ARCH_OMAP1 ||\
1588 ARCH_RPC
1589 default 0x20008000 if ARCH_S5P6440 ||\
1590 ARCH_S5P6442 ||\
1591 ARCH_S5PC100 ||\
1592 ARCH_S5PV210
1593 default 0x30008000 if ARCH_S3C2410 ||\
1594 ARCH_S3C2400 ||\
1595 ARCH_S3C2412 ||\
1596 ARCH_S3C2416 ||\
1597 ARCH_S3C2440 ||\
1598 ARCH_S3C2443
1599 default 0x40008000 if ARCH_STMP378X ||\
1600 ARCH_STMP37XX ||\
1601 ARCH_SH7372 ||\
1602 ARCH_SH7377
1603 default 0x50008000 if ARCH_S3C64XX ||\
1604 ARCH_SH7367
1605 default 0x60008000 if ARCH_VEXPRESS
1606 default 0x80008000 if ARCH_MX25 ||\
1607 ARCH_MX3 ||\
1608 ARCH_NETX ||\
1609 ARCH_OMAP2PLUS ||\
1610 ARCH_PNX4008
1611 default 0x90008000 if ARCH_MX5 ||\
1612 ARCH_MX91231
1613 default 0xa0008000 if ARCH_IOP32X ||\
1614 ARCH_PXA ||\
1615 MACH_MX27
1616 default 0xc0008000 if ARCH_LH7A40X ||\
1617 MACH_MX21
1618 default 0xf0008000 if ARCH_AAEC2000 ||\
1619 ARCH_L7200
1620 default 0xc0028000 if ARCH_CLPS711X
1621 default 0x70008000 if ARCH_AT91 && (ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
1622 default 0x20008000 if ARCH_AT91 && !(ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
1623 default 0xc0008000 if ARCH_DAVINCI && ARCH_DAVINCI_DA8XX
1624 default 0x80008000 if ARCH_DAVINCI && !ARCH_DAVINCI_DA8XX
1625 default 0x00008000 if ARCH_EP93XX && EP93XX_SDCE3_SYNC_PHYS_OFFSET
1626 default 0xc0008000 if ARCH_EP93XX && EP93XX_SDCE0_PHYS_OFFSET
1627 default 0xd0008000 if ARCH_EP93XX && EP93XX_SDCE1_PHYS_OFFSET
1628 default 0xe0008000 if ARCH_EP93XX && EP93XX_SDCE2_PHYS_OFFSET
1629 default 0xf0008000 if ARCH_EP93XX && EP93XX_SDCE3_ASYNC_PHYS_OFFSET
1630 default 0x00008000 if ARCH_GEMINI && GEMINI_MEM_SWAP
1631 default 0x10008000 if ARCH_GEMINI && !GEMINI_MEM_SWAP
1632 default 0x70008000 if ARCH_REALVIEW && REALVIEW_HIGH_PHYS_OFFSET
1633 default 0x00008000 if ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET
1634 default 0xc0208000 if ARCH_SA1100 && SA1111
1635 default 0xc0008000 if ARCH_SA1100 && !SA1111
1636 default 0x30108000 if ARCH_S3C2410 && PM_H1940
1637 default 0x28E08000 if ARCH_U300 && MACH_U300_SINGLE_RAM
1638 default 0x48008000 if ARCH_U300 && !MACH_U300_SINGLE_RAM
1639 help
1640 ZRELADDR is the physical address where the decompressed kernel
1641 image will be placed. ZRELADDR has to be specified when the
1642 assumption of AUTO_ZRELADDR is not valid, or when ZBOOT_ROM is
1643 selected.
1644
Linus Torvalds1da177e2005-04-16 15:20:36 -07001645endmenu
1646
Russell Kingac9d7ef2008-08-18 17:26:00 +01001647menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001648
Ben Dooks89c52ed2009-07-30 23:23:24 +01001649if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001650
1651source "drivers/cpufreq/Kconfig"
1652
1653config CPU_FREQ_SA1100
1654 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001655
1656config CPU_FREQ_SA1110
1657 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001658
1659config CPU_FREQ_INTEGRATOR
1660 tristate "CPUfreq driver for ARM Integrator CPUs"
1661 depends on ARCH_INTEGRATOR && CPU_FREQ
1662 default y
1663 help
1664 This enables the CPUfreq driver for ARM Integrator CPUs.
1665
1666 For details, take a look at <file:Documentation/cpu-freq>.
1667
1668 If in doubt, say Y.
1669
Russell King9e2697f2007-12-14 13:30:14 +00001670config CPU_FREQ_PXA
1671 bool
1672 depends on CPU_FREQ && ARCH_PXA && PXA25x
1673 default y
1674 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1675
Mark Brownb3748dd2009-06-15 11:23:20 +01001676config CPU_FREQ_S3C64XX
1677 bool "CPUfreq support for Samsung S3C64XX CPUs"
1678 depends on CPU_FREQ && CPU_S3C6410
1679
Ben Dooks9d56c022009-07-30 23:23:25 +01001680config CPU_FREQ_S3C
1681 bool
1682 help
1683 Internal configuration node for common cpufreq on Samsung SoC
1684
1685config CPU_FREQ_S3C24XX
1686 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1687 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1688 select CPU_FREQ_S3C
1689 help
1690 This enables the CPUfreq driver for the Samsung S3C24XX family
1691 of CPUs.
1692
1693 For details, take a look at <file:Documentation/cpu-freq>.
1694
1695 If in doubt, say N.
1696
1697config CPU_FREQ_S3C24XX_PLL
1698 bool "Support CPUfreq changing of PLL frequency"
1699 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1700 help
1701 Compile in support for changing the PLL frequency from the
1702 S3C24XX series CPUfreq driver. The PLL takes time to settle
1703 after a frequency change, so by default it is not enabled.
1704
1705 This also means that the PLL tables for the selected CPU(s) will
1706 be built which may increase the size of the kernel image.
1707
1708config CPU_FREQ_S3C24XX_DEBUG
1709 bool "Debug CPUfreq Samsung driver core"
1710 depends on CPU_FREQ_S3C24XX
1711 help
1712 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1713
1714config CPU_FREQ_S3C24XX_IODEBUG
1715 bool "Debug CPUfreq Samsung driver IO timing"
1716 depends on CPU_FREQ_S3C24XX
1717 help
1718 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1719
Ben Dookse6d197a2009-07-30 23:23:42 +01001720config CPU_FREQ_S3C24XX_DEBUGFS
1721 bool "Export debugfs for CPUFreq"
1722 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1723 help
1724 Export status information via debugfs.
1725
Linus Torvalds1da177e2005-04-16 15:20:36 -07001726endif
1727
Russell Kingac9d7ef2008-08-18 17:26:00 +01001728source "drivers/cpuidle/Kconfig"
1729
1730endmenu
1731
Linus Torvalds1da177e2005-04-16 15:20:36 -07001732menu "Floating point emulation"
1733
1734comment "At least one emulation must be selected"
1735
1736config FPE_NWFPE
1737 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001738 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001739 ---help---
1740 Say Y to include the NWFPE floating point emulator in the kernel.
1741 This is necessary to run most binaries. Linux does not currently
1742 support floating point hardware so you need to say Y here even if
1743 your machine has an FPA or floating point co-processor podule.
1744
1745 You may say N here if you are going to load the Acorn FPEmulator
1746 early in the bootup.
1747
1748config FPE_NWFPE_XP
1749 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001750 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001751 help
1752 Say Y to include 80-bit support in the kernel floating-point
1753 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1754 Note that gcc does not generate 80-bit operations by default,
1755 so in most cases this option only enlarges the size of the
1756 floating point emulator without any good reason.
1757
1758 You almost surely want to say N here.
1759
1760config FPE_FASTFPE
1761 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001762 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763 ---help---
1764 Say Y here to include the FAST floating point emulator in the kernel.
1765 This is an experimental much faster emulator which now also has full
1766 precision for the mantissa. It does not support any exceptions.
1767 It is very simple, and approximately 3-6 times faster than NWFPE.
1768
1769 It should be sufficient for most programs. It may be not suitable
1770 for scientific calculations, but you have to check this for yourself.
1771 If you do not feel you need a faster FP emulation you should better
1772 choose NWFPE.
1773
1774config VFP
1775 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001776 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001777 help
1778 Say Y to include VFP support code in the kernel. This is needed
1779 if your hardware includes a VFP unit.
1780
1781 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1782 release notes and additional status information.
1783
1784 Say N if your target does not have VFP hardware.
1785
Catalin Marinas25ebee02007-09-25 15:22:24 +01001786config VFPv3
1787 bool
1788 depends on VFP
1789 default y if CPU_V7
1790
Catalin Marinasb5872db2008-01-10 19:16:17 +01001791config NEON
1792 bool "Advanced SIMD (NEON) Extension support"
1793 depends on VFPv3 && CPU_V7
1794 help
1795 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1796 Extension.
1797
Linus Torvalds1da177e2005-04-16 15:20:36 -07001798endmenu
1799
1800menu "Userspace binary formats"
1801
1802source "fs/Kconfig.binfmt"
1803
1804config ARTHUR
1805 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001806 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001807 help
1808 Say Y here to include the kernel code necessary if you want to run
1809 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1810 experimental; if this sounds frightening, say N and sleep in peace.
1811 You can also say M here to compile this support as a module (which
1812 will be called arthur).
1813
1814endmenu
1815
1816menu "Power management options"
1817
Russell Kingeceab4a2005-11-15 11:31:41 +00001818source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819
Johannes Bergf4cb5702007-12-08 02:14:00 +01001820config ARCH_SUSPEND_POSSIBLE
1821 def_bool y
1822
Linus Torvalds1da177e2005-04-16 15:20:36 -07001823endmenu
1824
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001825source "net/Kconfig"
1826
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001827source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001828
1829source "fs/Kconfig"
1830
Linus Torvalds1da177e2005-04-16 15:20:36 -07001831source "arch/arm/Kconfig.debug"
1832
1833source "security/Kconfig"
1834
1835source "crypto/Kconfig"
1836
1837source "lib/Kconfig"