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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config ARM
9 bool
10 default y
David Woodhousee17c6d52008-06-17 12:19:34 +010011 select HAVE_AOUT
Adrian Bunk2064c942008-04-28 23:44:43 +020012 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +010013 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -080014 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000015 select SYS_SUPPORTS_APM_EMULATION
Will Deacon24b44a62010-01-20 19:05:07 +010016 select GENERIC_ATOMIC64 if (!CPU_32v6K)
Will Deaconfe166142010-04-30 11:37:51 +010017 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060018 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050019 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080020 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040021 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040022 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080023 select HAVE_KERNEL_GZIP
24 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010025 select HAVE_KERNEL_LZMA
Jamie Iles7ada1892010-02-02 20:24:58 +010026 select HAVE_PERF_EVENTS
27 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010028 select HAVE_REGS_AND_STACK_ACCESS_API
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 help
30 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000031 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000033 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 Europe. There is an ARM Linux project with a web page at
35 <http://www.arm.linux.org.uk/>.
36
Russell King1a189b92008-04-13 21:41:55 +010037config HAVE_PWM
38 bool
39
Ralf Baechle75e71532007-02-09 17:08:58 +000040config SYS_SUPPORTS_APM_EMULATION
41 bool
42
David Brownell0a938b92007-03-05 00:30:18 -080043config GENERIC_GPIO
44 bool
David Brownell0a938b92007-03-05 00:30:18 -080045
John Stultz5cfc8ee2010-03-24 00:22:36 +000046config ARCH_USES_GETTIMEOFFSET
47 bool
48 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010049
Kevin Hilman0567a0c2007-03-13 20:29:24 +010050config GENERIC_CLOCKEVENTS
51 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010052
Catalin Marinasa8655e82008-02-04 17:30:57 +010053config GENERIC_CLOCKEVENTS_BROADCAST
54 bool
55 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010056 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010057
Linus Walleijbc581772009-09-15 17:30:37 +010058config HAVE_TCM
59 bool
60 select GENERIC_ALLOCATOR
61
Russell Kinge119bff2010-01-10 17:23:29 +000062config HAVE_PROC_CPU
63 bool
64
Al Viro5ea81762007-02-11 15:41:31 +000065config NO_IOPORT
66 bool
Al Viro5ea81762007-02-11 15:41:31 +000067
Linus Torvalds1da177e2005-04-16 15:20:36 -070068config EISA
69 bool
70 ---help---
71 The Extended Industry Standard Architecture (EISA) bus was
72 developed as an open alternative to the IBM MicroChannel bus.
73
74 The EISA bus provided some of the features of the IBM MicroChannel
75 bus while maintaining backward compatibility with cards made for
76 the older ISA bus. The EISA bus saw limited use between 1988 and
77 1995 when it was made obsolete by the PCI bus.
78
79 Say Y here if you are building a kernel for an EISA-based machine.
80
81 Otherwise, say N.
82
83config SBUS
84 bool
85
86config MCA
87 bool
88 help
89 MicroChannel Architecture is found in some IBM PS/2 machines and
90 laptops. It is a bus system similar to PCI or ISA. See
91 <file:Documentation/mca.txt> (and especially the web page given
92 there) before attempting to build an MCA bus kernel.
93
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010094config GENERIC_HARDIRQS
95 bool
96 default y
97
Russell Kingf16fb1e2007-04-28 09:59:37 +010098config STACKTRACE_SUPPORT
99 bool
100 default y
101
Nicolas Pitref76e9152008-04-24 01:31:46 -0400102config HAVE_LATENCYTOP_SUPPORT
103 bool
104 depends on !SMP
105 default y
106
Russell Kingf16fb1e2007-04-28 09:59:37 +0100107config LOCKDEP_SUPPORT
108 bool
109 default y
110
Russell King7ad1bcb2006-08-27 12:07:02 +0100111config TRACE_IRQFLAGS_SUPPORT
112 bool
113 default y
114
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100115config HARDIRQS_SW_RESEND
116 bool
117 default y
118
119config GENERIC_IRQ_PROBE
120 bool
121 default y
122
Nick Piggin95c354f2008-01-30 13:31:20 +0100123config GENERIC_LOCKBREAK
124 bool
125 default y
126 depends on SMP && PREEMPT
127
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128config RWSEM_GENERIC_SPINLOCK
129 bool
130 default y
131
132config RWSEM_XCHGADD_ALGORITHM
133 bool
134
David Howellsf0d1b0b2006-12-08 02:37:49 -0800135config ARCH_HAS_ILOG2_U32
136 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800137
138config ARCH_HAS_ILOG2_U64
139 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800140
Ben Dooks89c52ed2009-07-30 23:23:24 +0100141config ARCH_HAS_CPUFREQ
142 bool
143 help
144 Internal node to signify that the ARCH has CPUFREQ support
145 and that the relevant menu configurations are displayed for
146 it.
147
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800148config GENERIC_HWEIGHT
149 bool
150 default y
151
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152config GENERIC_CALIBRATE_DELAY
153 bool
154 default y
155
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100156config ARCH_MAY_HAVE_PC_FDC
157 bool
158
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800159config ZONE_DMA
160 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800161
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800162config NEED_DMA_MAP_STATE
163 def_bool y
164
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165config GENERIC_ISA_DMA
166 bool
167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168config FIQ
169 bool
170
Al Viro034d2f52005-12-19 16:27:59 -0500171config ARCH_MTD_XIP
172 bool
173
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100174config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100175 def_bool y
176
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100177config ARM_L1_CACHE_SHIFT_6
178 bool
179 help
180 Setting ARM L1 cache line size to 64 Bytes.
181
Hyok S. Choic760fc12006-03-27 15:18:50 +0100182config VECTORS_BASE
183 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900184 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100185 default DRAM_BASE if REMAP_VECTORS_TO_RAM
186 default 0x00000000
187 help
188 The base address of exception vectors.
189
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190source "init/Kconfig"
191
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700192source "kernel/Kconfig.freezer"
193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194menu "System Type"
195
Hyok S. Choi3c427972009-07-24 12:35:00 +0100196config MMU
197 bool "MMU-based Paged Memory Management Support"
198 default y
199 help
200 Select if you want MMU-based virtualised addressing space
201 support by paged memory management. If unsure, say 'Y'.
202
Russell Kingccf50e22010-03-15 19:03:06 +0000203#
204# The "ARM system type" choice list is ordered alphabetically by option
205# text. Please add new entries in the option alphabetic order.
206#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207choice
208 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000209 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100211config ARCH_AAEC2000
212 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000213 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100214 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700215 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000216 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100217 help
218 This enables support for systems based on the Agilent AAEC-2000
219
220config ARCH_INTEGRATOR
221 bool "ARM Ltd. Integrator family"
222 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100223 select ARCH_HAS_CPUFREQ
Russell Kingd72fbdf2008-11-08 20:08:08 +0000224 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000225 select ICST
Russell King13edd862010-01-15 21:49:23 +0000226 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000227 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100228 help
229 Support for ARM's Integrator platform.
230
231config ARCH_REALVIEW
232 bool "ARM Ltd. RealView family"
233 select ARM_AMBA
Russell Kingcf30fb42008-11-08 20:05:55 +0000234 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000235 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100236 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100237 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000238 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000239 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100240 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100241 help
242 This enables support for ARM Ltd RealView boards.
243
244config ARCH_VERSATILE
245 bool "ARM Ltd. Versatile family"
246 select ARM_AMBA
247 select ARM_VIC
Russell King71a06da2008-11-08 20:13:53 +0000248 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000249 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100250 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100251 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000252 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000253 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100254 help
255 This enables support for ARM Ltd Versatile board.
256
Russell Kingceade892010-02-11 21:44:53 +0000257config ARCH_VEXPRESS
258 bool "ARM Ltd. Versatile Express family"
259 select ARCH_WANT_OPTIONAL_GPIOLIB
260 select ARM_AMBA
261 select ARM_TIMER_SP804
262 select COMMON_CLKDEV
263 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000264 select HAVE_CLK
265 select ICST
266 select PLAT_VERSATILE
267 help
268 This enables support for the ARM Ltd Versatile Express boards.
269
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100270config ARCH_AT91
271 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100272 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700273 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100274 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100275 This enables support for systems based on the Atmel AT91RM9200,
276 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100277
Russell Kingccf50e22010-03-15 19:03:06 +0000278config ARCH_BCMRING
279 bool "Broadcom BCMRING"
280 depends on MMU
281 select CPU_V6
282 select ARM_AMBA
283 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000284 select GENERIC_CLOCKEVENTS
285 select ARCH_WANT_OPTIONAL_GPIOLIB
286 help
287 Support for Broadcom's BCMRing platform.
288
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100290 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000291 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000292 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000293 help
294 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300296config ARCH_CNS3XXX
297 bool "Cavium Networks CNS3XXX family"
298 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300299 select GENERIC_CLOCKEVENTS
300 select ARM_GIC
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400301 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300302 help
303 Support for Cavium Networks CNS3XXX platform.
304
Russell King788c9702009-04-26 14:21:59 +0100305config ARCH_GEMINI
306 bool "Cortina Systems Gemini"
307 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100308 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000309 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100310 help
311 Support for the Cortina Systems Gemini family SoCs
312
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313config ARCH_EBSA110
314 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000315 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100316 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000317 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000318 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 help
320 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000321 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 Ethernet interface, two PCMCIA sockets, two serial ports and a
323 parallel port.
324
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000325config ARCH_EP93XX
326 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000327 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000328 select ARM_AMBA
329 select ARM_VIC
Russell Kingae696fd2008-11-30 17:11:49 +0000330 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700331 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100332 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000333 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000334 help
335 This enables support for the Cirrus EP93xx series of CPUs.
336
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337config ARCH_FOOTBRIDGE
338 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000339 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000341 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000342 help
343 Support for systems based on the DC21285 companion chip
344 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345
Russell King788c9702009-04-26 14:21:59 +0100346config ARCH_MXC
347 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100348 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100349 select ARCH_REQUIRE_GPIOLIB
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100350 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100351 help
352 Support for Freescale MXC/iMX-based family of processors
353
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100354config ARCH_STMP3XXX
355 bool "Freescale STMP3xxx"
356 select CPU_ARM926T
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100357 select COMMON_CLKDEV
358 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100359 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100360 select USB_ARCH_HAS_EHCI
361 help
362 Support for systems based on the Freescale 3xxx CPUs.
363
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100364config ARCH_NETX
365 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000366 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100367 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100368 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000369 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100370 This enables support for systems based on the Hilscher NetX Soc
371
372config ARCH_H720X
373 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000374 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100375 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000376 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100377 help
378 This enables support for systems based on the Hynix HMS720x
379
Russell King3b938be2007-05-12 11:25:44 +0100380config ARCH_IOP13XX
381 bool "IOP13xx-based"
382 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000383 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100384 select PLAT_IOP
385 select PCI
386 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100387 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100388 help
389 Support for Intel's IOP13XX (XScale) family of processors.
390
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100391config ARCH_IOP32X
392 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100393 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000394 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100395 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100396 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100397 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000398 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100399 Support for Intel's 80219 and IOP32X (XScale) family of
400 processors.
401
402config ARCH_IOP33X
403 bool "IOP33x-based"
404 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000405 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100406 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100407 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100408 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100409 help
410 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411
Russell King3b938be2007-05-12 11:25:44 +0100412config ARCH_IXP23XX
413 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100414 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000415 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100416 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000417 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100418 help
Russell King3b938be2007-05-12 11:25:44 +0100419 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420
421config ARCH_IXP2000
422 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100423 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000424 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100425 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000426 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000427 help
428 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429
Russell King3b938be2007-05-12 11:25:44 +0100430config ARCH_IXP4XX
431 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100432 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000433 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100434 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100435 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100436 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100437 help
Russell King3b938be2007-05-12 11:25:44 +0100438 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100439
Saeed Bisharaedabd382009-08-06 15:12:43 +0300440config ARCH_DOVE
441 bool "Marvell Dove"
442 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300443 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300444 select GENERIC_CLOCKEVENTS
445 select PLAT_ORION
446 help
447 Support for the Marvell Dove SoC 88AP510
448
Saeed Bishara651c74c2008-06-22 22:45:06 +0200449config ARCH_KIRKWOOD
450 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000451 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200452 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700453 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200454 select GENERIC_CLOCKEVENTS
455 select PLAT_ORION
456 help
457 Support for the following Marvell Kirkwood series SoCs:
458 88F6180, 88F6192 and 88F6281.
459
Russell King788c9702009-04-26 14:21:59 +0100460config ARCH_LOKI
461 bool "Marvell Loki (88RC8480)"
462 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100463 select GENERIC_CLOCKEVENTS
464 select PLAT_ORION
465 help
466 Support for the Marvell Loki (88RC8480) SoC.
467
Kevin Wells40805942010-07-27 08:49:04 -0700468config ARCH_LPC32XX
469 bool "NXP LPC32XX"
470 select CPU_ARM926T
471 select ARCH_REQUIRE_GPIOLIB
472 select HAVE_IDE
473 select ARM_AMBA
474 select USB_ARCH_HAS_OHCI
475 select COMMON_CLKDEV
476 select GENERIC_TIME
477 select GENERIC_CLOCKEVENTS
478 help
479 Support for the NXP LPC32XX family of processors
480
Russell King788c9702009-04-26 14:21:59 +0100481config ARCH_MV78XX0
482 bool "Marvell MV78xx0"
483 select CPU_FEROCEON
484 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700485 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100486 select GENERIC_CLOCKEVENTS
487 select PLAT_ORION
488 help
489 Support for the following Marvell MV78xx0 series SoCs:
490 MV781x0, MV782x0.
491
492config ARCH_ORION5X
493 bool "Marvell Orion"
494 depends on MMU
495 select CPU_FEROCEON
496 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700497 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100498 select GENERIC_CLOCKEVENTS
499 select PLAT_ORION
500 help
501 Support for the following Marvell Orion 5x series SoCs:
502 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
503 Orion-2 (5281), Orion-1-90 (6183).
504
505config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500506 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100507 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100508 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100509 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100510 select GENERIC_CLOCKEVENTS
511 select TICK_ONESHOT
512 select PLAT_PXA
513 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500514 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100515
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100516config ARCH_KS8695
517 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000518 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100519 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000520 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100521 help
522 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
523 System-on-Chip devices.
524
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100525config ARCH_NS9XXX
526 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000527 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100528 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100529 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700530 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100531 help
532 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
533 System.
534
535 <http://www.digi.com/products/microprocessors/index.jsp>
536
Russell King788c9702009-04-26 14:21:59 +0100537config ARCH_W90X900
538 bool "Nuvoton W90X900 CPU"
539 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100540 select ARCH_REQUIRE_GPIOLIB
wanzongshun0e4a34b2009-06-10 15:50:44 +0100541 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100542 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200543 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100544 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
545 At present, the w90x900 has been renamed nuc900, regarding
546 the ARM series product line, you can login the following
547 link address to know more.
548
549 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
550 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400551
wanzongshuna62e9032009-12-31 15:06:05 +0100552config ARCH_NUC93X
553 bool "Nuvoton NUC93X CPU"
554 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100555 select COMMON_CLKDEV
556 help
557 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
558 low-power and high performance MPEG-4/JPEG multimedia controller chip.
559
Erik Gillingc5f80062010-01-21 16:53:02 -0800560config ARCH_TEGRA
561 bool "NVIDIA Tegra"
562 select GENERIC_TIME
563 select GENERIC_CLOCKEVENTS
564 select GENERIC_GPIO
565 select HAVE_CLK
Colin Crossd8611962010-01-28 16:40:29 -0800566 select COMMON_CLKDEV
Erik Gillingc5f80062010-01-21 16:53:02 -0800567 select ARCH_HAS_BARRIERS if CACHE_L2X0
568 help
569 This enables support for NVIDIA Tegra based systems (Tegra APX,
570 Tegra 6xx and Tegra 2 series).
571
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100572config ARCH_PNX4008
573 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000574 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000575 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000576 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100577 help
578 This enables support for Philips PNX4008 mobile platform.
579
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700581 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100582 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500583 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100584 select ARCH_HAS_CPUFREQ
Russell King8c3abc72008-11-08 20:25:21 +0000585 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700586 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100587 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000588 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800589 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000590 help
eric miao2c8086a2007-09-11 19:13:17 -0700591 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592
Russell King788c9702009-04-26 14:21:59 +0100593config ARCH_MSM
594 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500595 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800596 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700597 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800598 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800599 Support for Qualcomm MSM/QSD based systems. This runs on the
600 apps processor of the MSM/QSD and depends on a shared memory
601 interface to the modem processor which runs the baseband
602 stack and controls some vital subsystems
603 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800604
Magnus Dammc793c1b2010-02-05 11:14:49 +0000605config ARCH_SHMOBILE
606 bool "Renesas SH-Mobile"
607 help
608 Support for Renesas's SH-Mobile ARM platforms
609
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610config ARCH_RPC
611 bool "RiscPC"
612 select ARCH_ACORN
613 select FIQ
614 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100615 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100616 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000617 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000618 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100619 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000620 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621 help
622 On the Acorn Risc-PC, Linux can support the internal IDE disk and
623 CD-ROM interface, serial and parallel port, and the floppy drive.
624
625config ARCH_SA1100
626 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000627 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100628 select ISA
Russell King05944d72006-11-30 20:43:51 +0000629 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500630 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100631 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000632 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100633 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700634 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100635 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700636 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000637 help
638 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639
640config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900641 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800642 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100643 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700644 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000645 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900646 select HAVE_S3C2410_I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647 help
648 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
649 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000650 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651
Ben Dooks63b1f512010-04-30 16:32:26 +0900652 Note, the S3C2416 and the S3C2450 are so close that they even share
653 the same SoC ID code. This means that there is no seperate machine
654 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
655
Ben Dooksa08ab632008-10-21 14:06:39 +0100656config ARCH_S3C64XX
657 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000658 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900659 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900660 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100661 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900662 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000663 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100664 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900665 select ARCH_REQUIRE_GPIOLIB
666 select SAMSUNG_CLKSRC
667 select SAMSUNG_IRQ_VIC_TIMER
668 select SAMSUNG_IRQ_UART
669 select S3C_GPIO_TRACK
670 select S3C_GPIO_PULL_UPDOWN
671 select S3C_GPIO_CFG_S3C24XX
672 select S3C_GPIO_CFG_S3C64XX
673 select S3C_DEV_NAND
674 select USB_ARCH_HAS_OHCI
675 select SAMSUNG_GPIOLIB_4BIT
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900676 select HAVE_S3C2410_I2C
Banajit Goswamid8653d92010-07-29 22:22:40 +0900677 select HAVE_S3C2410_WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100678 help
679 Samsung S3C64XX series based systems
680
Kukjin Kim49b7a492010-09-07 15:47:18 +0900681config ARCH_S5P64X0
682 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900683 select CPU_V6
684 select GENERIC_GPIO
685 select HAVE_CLK
Banajit Goswamid8653d92010-07-29 22:22:40 +0900686 select HAVE_S3C2410_WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900687 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900688 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900689 select HAVE_S3C_RTC
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900690 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900691 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
692 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900693
Kukjin Kim550db7f2010-01-29 10:19:26 +0900694config ARCH_S5P6442
695 bool "Samsung S5P6442"
696 select CPU_V6
697 select GENERIC_GPIO
698 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900699 select ARCH_USES_GETTIMEOFFSET
Banajit Goswamid8653d92010-07-29 22:22:40 +0900700 select HAVE_S3C2410_WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900701 help
702 Samsung S5P6442 CPU based systems
703
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200704config ARCH_S5PC100
705 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900706 select GENERIC_GPIO
707 select HAVE_CLK
708 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100709 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900710 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900711 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900712 select HAVE_S3C_RTC
Banajit Goswamid8653d92010-07-29 22:22:40 +0900713 select HAVE_S3C2410_WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900714 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200715 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900716
Kukjin Kim170f4e42010-02-24 16:40:44 +0900717config ARCH_S5PV210
718 bool "Samsung S5PV210/S5PC110"
719 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900720 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900721 select GENERIC_GPIO
722 select HAVE_CLK
723 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900724 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900725 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900726 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900727 select HAVE_S3C_RTC
Banajit Goswamid8653d92010-07-29 22:22:40 +0900728 select HAVE_S3C2410_WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900729 help
730 Samsung S5PV210/S5PC110 series based systems
731
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900732config ARCH_S5PV310
733 bool "Samsung S5PV310/S5PC210"
734 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900735 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900736 select GENERIC_GPIO
737 select HAVE_CLK
738 select GENERIC_CLOCKEVENTS
Changhwan Youncdff6e62010-09-20 15:25:51 +0900739 select HAVE_S3C_RTC
Kyungmin Parkb7a98252010-10-12 07:49:24 +0900740 select HAVE_S3C2410_I2C
Jemings Ko8d75c912010-09-20 15:33:04 +0900741 select HAVE_S3C2410_WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900742 help
743 Samsung S5PV310 series based systems
744
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745config ARCH_SHARK
746 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000747 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100748 select ISA
749 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100750 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100751 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000752 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000753 help
754 Support for the StrongARM based Digital DNARD machine, also known
755 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700756
757config ARCH_LH7A40X
758 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000759 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100760 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000761 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762 help
763 Say Y here for systems based on one of the Sharp LH7A40X
764 System on a Chip processors. These CPUs include an ARM922T
765 core with a wide array of integrated devices for
766 hand-held and low-power applications.
767
Linus Walleijd98aac72009-04-27 10:21:46 +0100768config ARCH_U300
769 bool "ST-Ericsson U300 Series"
770 depends on MMU
771 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100772 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100773 select ARM_AMBA
774 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100775 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100776 select COMMON_CLKDEV
777 select GENERIC_GPIO
778 help
779 Support for ST-Ericsson U300 series mobile platforms.
780
Russell Kingccf50e22010-03-15 19:03:06 +0000781config ARCH_U8500
782 bool "ST-Ericsson U8500 Series"
783 select CPU_V7
784 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000785 select GENERIC_CLOCKEVENTS
786 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100787 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000788 help
789 Support for ST-Ericsson's Ux500 architecture
790
791config ARCH_NOMADIK
792 bool "STMicroelectronics Nomadik"
793 select ARM_AMBA
794 select ARM_VIC
795 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000796 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000797 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000798 select ARCH_REQUIRE_GPIOLIB
799 help
800 Support for the Nomadik platform by ST-Ericsson
801
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100802config ARCH_DAVINCI
803 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100804 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700805 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100806 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700807 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700808 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700809 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530810 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100811 help
812 Support for TI's DaVinci platform.
813
Russell King3b938be2007-05-12 11:25:44 +0100814config ARCH_OMAP
815 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700816 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700817 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100818 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700819 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800820 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100821 help
822 Support for TI's OMAP platform (OMAP1 and OMAP2).
823
viresh kumarcee37e52010-04-01 12:31:05 +0100824config PLAT_SPEAR
825 bool "ST SPEAr"
826 select ARM_AMBA
827 select ARCH_REQUIRE_GPIOLIB
828 select COMMON_CLKDEV
829 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100830 select HAVE_CLK
831 help
832 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
833
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834endchoice
835
Russell Kingccf50e22010-03-15 19:03:06 +0000836#
837# This is sorted alphabetically by mach-* pathname. However, plat-*
838# Kconfigs may be included either alphabetically (according to the
839# plat- suffix) or along side the corresponding mach-* source.
840#
Russell King95b8f202010-01-14 11:43:54 +0000841source "arch/arm/mach-aaec2000/Kconfig"
842
843source "arch/arm/mach-at91/Kconfig"
844
845source "arch/arm/mach-bcmring/Kconfig"
846
Linus Torvalds1da177e2005-04-16 15:20:36 -0700847source "arch/arm/mach-clps711x/Kconfig"
848
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300849source "arch/arm/mach-cns3xxx/Kconfig"
850
Russell King95b8f202010-01-14 11:43:54 +0000851source "arch/arm/mach-davinci/Kconfig"
852
853source "arch/arm/mach-dove/Kconfig"
854
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000855source "arch/arm/mach-ep93xx/Kconfig"
856
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857source "arch/arm/mach-footbridge/Kconfig"
858
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200859source "arch/arm/mach-gemini/Kconfig"
860
Russell King95b8f202010-01-14 11:43:54 +0000861source "arch/arm/mach-h720x/Kconfig"
862
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863source "arch/arm/mach-integrator/Kconfig"
864
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100865source "arch/arm/mach-iop32x/Kconfig"
866
867source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868
Dan Williams285f5fa2006-12-07 02:59:39 +0100869source "arch/arm/mach-iop13xx/Kconfig"
870
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871source "arch/arm/mach-ixp4xx/Kconfig"
872
873source "arch/arm/mach-ixp2000/Kconfig"
874
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100875source "arch/arm/mach-ixp23xx/Kconfig"
876
Russell King95b8f202010-01-14 11:43:54 +0000877source "arch/arm/mach-kirkwood/Kconfig"
878
879source "arch/arm/mach-ks8695/Kconfig"
880
881source "arch/arm/mach-lh7a40x/Kconfig"
882
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200883source "arch/arm/mach-loki/Kconfig"
884
Kevin Wells40805942010-07-27 08:49:04 -0700885source "arch/arm/mach-lpc32xx/Kconfig"
886
Russell King95b8f202010-01-14 11:43:54 +0000887source "arch/arm/mach-msm/Kconfig"
888
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200889source "arch/arm/mach-mv78xx0/Kconfig"
890
Russell King95b8f202010-01-14 11:43:54 +0000891source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700892
Russell King95b8f202010-01-14 11:43:54 +0000893source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800894
Russell King95b8f202010-01-14 11:43:54 +0000895source "arch/arm/mach-nomadik/Kconfig"
896source "arch/arm/plat-nomadik/Kconfig"
897
898source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899
Russell Kingd91a8912010-02-04 18:13:17 +0000900source "arch/arm/mach-nuc93x/Kconfig"
901
Tony Lindgrend48af152005-07-10 19:58:17 +0100902source "arch/arm/plat-omap/Kconfig"
903
904source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905
Tony Lindgren1dbae812005-11-10 14:26:51 +0000906source "arch/arm/mach-omap2/Kconfig"
907
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400908source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400909
Russell King95b8f202010-01-14 11:43:54 +0000910source "arch/arm/mach-pxa/Kconfig"
911source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912
Russell King95b8f202010-01-14 11:43:54 +0000913source "arch/arm/mach-mmp/Kconfig"
914
915source "arch/arm/mach-realview/Kconfig"
916
917source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300918
Ben Dookscf383672009-11-10 00:14:58 +0000919source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100920source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900921source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100922
viresh kumarcee37e52010-04-01 12:31:05 +0100923source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100924
925if ARCH_S3C2410
926source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100928source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900929source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100930source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100931source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100932endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933
Ben Dooksa08ab632008-10-21 14:06:39 +0100934if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900935source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100936endif
937
Kukjin Kim49b7a492010-09-07 15:47:18 +0900938source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900939
Kukjin Kim550db7f2010-01-29 10:19:26 +0900940source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100941
Byungho Min5a7652f2009-06-23 21:39:42 +0900942source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900943
Kukjin Kim170f4e42010-02-24 16:40:44 +0900944source "arch/arm/mach-s5pv210/Kconfig"
945
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900946source "arch/arm/mach-s5pv310/Kconfig"
947
Russell King882d01f2010-03-02 23:40:15 +0000948source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949
Russell King882d01f2010-03-02 23:40:15 +0000950source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800951
Erik Gillingc5f80062010-01-21 16:53:02 -0800952source "arch/arm/mach-tegra/Kconfig"
953
Russell King95b8f202010-01-14 11:43:54 +0000954source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100955
Russell King95b8f202010-01-14 11:43:54 +0000956source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
958source "arch/arm/mach-versatile/Kconfig"
959
Russell Kingceade892010-02-11 21:44:53 +0000960source "arch/arm/mach-vexpress/Kconfig"
961
wanzongshun7ec80dd2008-12-03 03:55:38 +0100962source "arch/arm/mach-w90x900/Kconfig"
963
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964# Definitions to make life easier
965config ARCH_ACORN
966 bool
967
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100968config PLAT_IOP
969 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700970 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100971
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400972config PLAT_ORION
973 bool
974
Eric Miaobd5ce432009-01-20 12:06:01 +0800975config PLAT_PXA
976 bool
977
Russell Kingf4b8b312010-01-14 12:48:06 +0000978config PLAT_VERSATILE
979 bool
980
Russell Kinge3887712010-01-14 13:30:16 +0000981config ARM_TIMER_SP804
982 bool
983
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984source arch/arm/mm/Kconfig
985
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100986config IWMMXT
987 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800988 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
989 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100990 help
991 Enable support for iWMMXt context switching at run time if
992 running on a CPU that supports it.
993
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
995config XSCALE_PMU
996 bool
997 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
998 default y
999
Jamie Iles0f4f0672010-02-02 20:23:15 +01001000config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001001 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1002 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001003 default y
1004 bool
1005
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001006if !MMU
1007source "arch/arm/Kconfig-nommu"
1008endif
1009
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001010config ARM_ERRATA_411920
1011 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
1012 depends on CPU_V6 && !SMP
1013 help
1014 Invalidation of the Instruction Cache operation can
1015 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1016 It does not affect the MPCore. This option enables the ARM Ltd.
1017 recommended workaround.
1018
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001019config ARM_ERRATA_430973
1020 bool "ARM errata: Stale prediction on replaced interworking branch"
1021 depends on CPU_V7
1022 help
1023 This option enables the workaround for the 430973 Cortex-A8
1024 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1025 interworking branch is replaced with another code sequence at the
1026 same virtual address, whether due to self-modifying code or virtual
1027 to physical address re-mapping, Cortex-A8 does not recover from the
1028 stale interworking branch prediction. This results in Cortex-A8
1029 executing the new code sequence in the incorrect ARM or Thumb state.
1030 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1031 and also flushes the branch target cache at every context switch.
1032 Note that setting specific bits in the ACTLR register may not be
1033 available in non-secure mode.
1034
Catalin Marinas855c5512009-04-30 17:06:15 +01001035config ARM_ERRATA_458693
1036 bool "ARM errata: Processor deadlock when a false hazard is created"
1037 depends on CPU_V7
1038 help
1039 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1040 erratum. For very specific sequences of memory operations, it is
1041 possible for a hazard condition intended for a cache line to instead
1042 be incorrectly associated with a different cache line. This false
1043 hazard might then cause a processor deadlock. The workaround enables
1044 the L1 caching of the NEON accesses and disables the PLD instruction
1045 in the ACTLR register. Note that setting specific bits in the ACTLR
1046 register may not be available in non-secure mode.
1047
Catalin Marinas0516e462009-04-30 17:06:20 +01001048config ARM_ERRATA_460075
1049 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1050 depends on CPU_V7
1051 help
1052 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1053 erratum. Any asynchronous access to the L2 cache may encounter a
1054 situation in which recent store transactions to the L2 cache are lost
1055 and overwritten with stale memory contents from external memory. The
1056 workaround disables the write-allocate mode for the L2 cache via the
1057 ACTLR register. Note that setting specific bits in the ACTLR register
1058 may not be available in non-secure mode.
1059
Will Deacon9f050272010-09-14 09:51:43 +01001060config ARM_ERRATA_742230
1061 bool "ARM errata: DMB operation may be faulty"
1062 depends on CPU_V7 && SMP
1063 help
1064 This option enables the workaround for the 742230 Cortex-A9
1065 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1066 between two write operations may not ensure the correct visibility
1067 ordering of the two writes. This workaround sets a specific bit in
1068 the diagnostic register of the Cortex-A9 which causes the DMB
1069 instruction to behave as a DSB, ensuring the correct behaviour of
1070 the two writes.
1071
Will Deacona672e992010-09-14 09:53:02 +01001072config ARM_ERRATA_742231
1073 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1074 depends on CPU_V7 && SMP
1075 help
1076 This option enables the workaround for the 742231 Cortex-A9
1077 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1078 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1079 accessing some data located in the same cache line, may get corrupted
1080 data due to bad handling of the address hazard when the line gets
1081 replaced from one of the CPUs at the same time as another CPU is
1082 accessing it. This workaround sets specific bits in the diagnostic
1083 register of the Cortex-A9 which reduces the linefill issuing
1084 capabilities of the processor.
1085
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001086config PL310_ERRATA_588369
1087 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1088 depends on CACHE_L2X0 && ARCH_OMAP4
1089 help
1090 The PL310 L2 cache controller implements three types of Clean &
1091 Invalidate maintenance operations: by Physical Address
1092 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1093 They are architecturally defined to behave as the execution of a
1094 clean operation followed immediately by an invalidate operation,
1095 both performing to the same memory location. This functionality
1096 is not correctly implemented in PL310 as clean lines are not
1097 invalidated as a result of these operations. Note that this errata
1098 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001099
1100config ARM_ERRATA_720789
1101 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1102 depends on CPU_V7 && SMP
1103 help
1104 This option enables the workaround for the 720789 Cortex-A9 (prior to
1105 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1106 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1107 As a consequence of this erratum, some TLB entries which should be
1108 invalidated are not, resulting in an incoherency in the system page
1109 tables. The workaround changes the TLB flushing routines to invalidate
1110 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001111
1112config ARM_ERRATA_743622
1113 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1114 depends on CPU_V7
1115 help
1116 This option enables the workaround for the 743622 Cortex-A9
1117 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1118 optimisation in the Cortex-A9 Store Buffer may lead to data
1119 corruption. This workaround sets a specific bit in the diagnostic
1120 register of the Cortex-A9 which disables the Store Buffer
1121 optimisation, preventing the defect from occurring. This has no
1122 visible impact on the overall performance or power consumption of the
1123 processor.
1124
Linus Torvalds1da177e2005-04-16 15:20:36 -07001125endmenu
1126
1127source "arch/arm/common/Kconfig"
1128
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129menu "Bus support"
1130
1131config ARM_AMBA
1132 bool
1133
1134config ISA
1135 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136 help
1137 Find out whether you have ISA slots on your motherboard. ISA is the
1138 name of a bus system, i.e. the way the CPU talks to the other stuff
1139 inside your box. Other bus systems are PCI, EISA, MicroChannel
1140 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1141 newer boards don't support it. If you have ISA, say Y, otherwise N.
1142
Russell King065909b2006-01-04 15:44:16 +00001143# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001144config ISA_DMA
1145 bool
Russell King065909b2006-01-04 15:44:16 +00001146 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001147
Russell King065909b2006-01-04 15:44:16 +00001148# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001149config ISA_DMA_API
1150 bool
Al Viro5cae8412005-05-04 05:39:22 +01001151
Linus Torvalds1da177e2005-04-16 15:20:36 -07001152config PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +04001153 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 -07001154 help
1155 Find out whether you have a PCI motherboard. PCI is the name of a
1156 bus system, i.e. the way the CPU talks to the other stuff inside
1157 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1158 VESA. If you have PCI, say Y, otherwise N.
1159
Anton Vorontsov52882172010-04-19 13:20:49 +01001160config PCI_DOMAINS
1161 bool
1162 depends on PCI
1163
Matthew Wilcox36e23592007-07-10 10:54:40 -06001164config PCI_SYSCALL
1165 def_bool PCI
1166
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167# Select the host bridge type
1168config PCI_HOST_VIA82C505
1169 bool
1170 depends on PCI && ARCH_SHARK
1171 default y
1172
Mike Rapoporta0113a92007-11-25 08:55:34 +01001173config PCI_HOST_ITE8152
1174 bool
1175 depends on PCI && MACH_ARMCORE
1176 default y
1177 select DMABOUNCE
1178
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179source "drivers/pci/Kconfig"
1180
1181source "drivers/pcmcia/Kconfig"
1182
1183endmenu
1184
1185menu "Kernel Features"
1186
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001187source "kernel/time/Kconfig"
1188
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189config SMP
1190 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001191 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Russell King59ac59f2010-02-11 21:56:07 +00001192 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
Russell King0b019a42010-08-10 23:17:52 +01001193 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Russell Kingbc282482009-05-17 18:58:34 +01001194 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001195 select USE_GENERIC_SMP_HELPERS
Russell King0b019a42010-08-10 23:17:52 +01001196 select HAVE_ARM_SCU if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 ||\
1197 ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4
Linus Torvalds1da177e2005-04-16 15:20:36 -07001198 help
1199 This enables support for systems with more than one CPU. If you have
1200 a system with only one CPU, like most personal computers, say N. If
1201 you have a system with more than one CPU, say Y.
1202
1203 If you say N here, the kernel will run on single and multiprocessor
1204 machines, but will use only one CPU of a multiprocessor machine. If
1205 you say Y here, the kernel will run on many, but not all, single
1206 processor machines. On a single processor machine, the kernel will
1207 run faster if you say N here.
1208
Adrian Bunk03502fa2008-02-03 15:50:21 +02001209 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1211 <http://www.linuxdoc.org/docs.html#howto>.
1212
1213 If you don't know what to do here, say N.
1214
Russell Kinga8cbcd92009-05-16 11:51:14 +01001215config HAVE_ARM_SCU
1216 bool
1217 depends on SMP
1218 help
1219 This option enables support for the ARM system coherency unit
1220
Russell Kingf32f4ce2009-05-16 12:14:21 +01001221config HAVE_ARM_TWD
1222 bool
1223 depends on SMP
1224 help
1225 This options enables support for the ARM timer and watchdog unit
1226
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001227choice
1228 prompt "Memory split"
1229 default VMSPLIT_3G
1230 help
1231 Select the desired split between kernel and user memory.
1232
1233 If you are not absolutely sure what you are doing, leave this
1234 option alone!
1235
1236 config VMSPLIT_3G
1237 bool "3G/1G user/kernel split"
1238 config VMSPLIT_2G
1239 bool "2G/2G user/kernel split"
1240 config VMSPLIT_1G
1241 bool "1G/3G user/kernel split"
1242endchoice
1243
1244config PAGE_OFFSET
1245 hex
1246 default 0x40000000 if VMSPLIT_1G
1247 default 0x80000000 if VMSPLIT_2G
1248 default 0xC0000000
1249
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250config NR_CPUS
1251 int "Maximum number of CPUs (2-32)"
1252 range 2 32
1253 depends on SMP
1254 default "4"
1255
Russell Kinga054a812005-11-02 22:24:33 +00001256config HOTPLUG_CPU
1257 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1258 depends on SMP && HOTPLUG && EXPERIMENTAL
1259 help
1260 Say Y here to experiment with turning CPUs off and on. CPUs
1261 can be controlled through /sys/devices/system/cpu.
1262
Russell King37ee16a2005-11-08 19:08:05 +00001263config LOCAL_TIMERS
1264 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001265 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Will Deaconbde28b82010-07-09 13:52:09 +01001266 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Russell King0b019a42010-08-10 23:17:52 +01001267 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Russell King37ee16a2005-11-08 19:08:05 +00001268 default y
Russell King0b019a42010-08-10 23:17:52 +01001269 select HAVE_ARM_TWD if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 || \
1270 ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS
Russell King37ee16a2005-11-08 19:08:05 +00001271 help
1272 Enable support for local timers on SMP platforms, rather then the
1273 legacy IPI broadcast method. Local timers allows the system
1274 accounting to be spread across the timer interval, preventing a
1275 "thundering herd" at every timer tick.
1276
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001277source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001278
Russell Kingf8065812006-03-02 22:41:59 +00001279config HZ
1280 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001281 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001282 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001283 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001284 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001285 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001286 default 100
1287
Catalin Marinas16c79652009-07-24 12:33:02 +01001288config THUMB2_KERNEL
1289 bool "Compile the kernel in Thumb-2 mode"
1290 depends on CPU_V7 && EXPERIMENTAL
1291 select AEABI
1292 select ARM_ASM_UNIFIED
1293 help
1294 By enabling this option, the kernel will be compiled in
1295 Thumb-2 mode. A compiler/assembler that understand the unified
1296 ARM-Thumb syntax is needed.
1297
1298 If unsure, say N.
1299
Catalin Marinas0becb082009-07-24 12:32:53 +01001300config ARM_ASM_UNIFIED
1301 bool
1302
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001303config AEABI
1304 bool "Use the ARM EABI to compile the kernel"
1305 help
1306 This option allows for the kernel to be compiled using the latest
1307 ARM ABI (aka EABI). This is only useful if you are using a user
1308 space environment that is also compiled with EABI.
1309
1310 Since there are major incompatibilities between the legacy ABI and
1311 EABI, especially with regard to structure member alignment, this
1312 option also changes the kernel syscall calling convention to
1313 disambiguate both ABIs and allow for backward compatibility support
1314 (selected with CONFIG_OABI_COMPAT).
1315
1316 To use this you need GCC version 4.0.0 or later.
1317
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001318config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001319 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001320 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001321 default y
1322 help
1323 This option preserves the old syscall interface along with the
1324 new (ARM EABI) one. It also provides a compatibility layer to
1325 intercept syscalls that have structure arguments which layout
1326 in memory differs between the legacy ABI and the new ARM EABI
1327 (only for non "thumb" binaries). This option adds a tiny
1328 overhead to all syscalls and produces a slightly larger kernel.
1329 If you know you'll be using only pure EABI user space then you
1330 can say N here. If this option is not selected and you attempt
1331 to execute a legacy ABI binary then the result will be
1332 UNPREDICTABLE (in fact it can be predicted that it won't work
1333 at all). If in doubt say Y.
1334
Mel Gormaneb335752009-05-13 17:34:48 +01001335config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001336 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001337
Russell King05944d72006-11-30 20:43:51 +00001338config ARCH_SPARSEMEM_ENABLE
1339 bool
1340
Russell King07a2f732008-10-01 21:39:58 +01001341config ARCH_SPARSEMEM_DEFAULT
1342 def_bool ARCH_SPARSEMEM_ENABLE
1343
Russell King05944d72006-11-30 20:43:51 +00001344config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001345 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001346
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001347config HIGHMEM
1348 bool "High Memory Support (EXPERIMENTAL)"
1349 depends on MMU && EXPERIMENTAL
1350 help
1351 The address space of ARM processors is only 4 Gigabytes large
1352 and it has to accommodate user address space, kernel address
1353 space as well as some memory mapped IO. That means that, if you
1354 have a large amount of physical memory and/or IO, not all of the
1355 memory can be "permanently mapped" by the kernel. The physical
1356 memory that is not permanently mapped is called "high memory".
1357
1358 Depending on the selected kernel/user memory split, minimum
1359 vmalloc space and actual amount of RAM, you may not need this
1360 option which should result in a slightly faster kernel.
1361
1362 If unsure, say n.
1363
Russell King65cec8e2009-08-17 20:02:06 +01001364config HIGHPTE
1365 bool "Allocate 2nd-level pagetables from highmem"
1366 depends on HIGHMEM
1367 depends on !OUTER_CACHE
1368
Jamie Iles1b8873a2010-02-02 20:25:44 +01001369config HW_PERF_EVENTS
1370 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001371 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001372 default y
1373 help
1374 Enable hardware performance counter support for perf events. If
1375 disabled, perf events will use software events only.
1376
eric miao354e6f72010-06-25 09:46:09 +01001377config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001378 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001379 help
1380 This enables support for sparse irqs. This is useful in general
1381 as most CPUs have a fairly sparse array of IRQ vectors, which
1382 the irq_desc then maps directly on to. Systems with a high
1383 number of off-chip IRQs will want to treat this as
1384 experimental until they have been independently verified.
1385
Dave Hansen3f22ab22005-06-23 00:07:43 -07001386source "mm/Kconfig"
1387
Magnus Dammc1b2d972010-07-05 10:00:11 +01001388config FORCE_MAX_ZONEORDER
1389 int "Maximum zone order" if ARCH_SHMOBILE
1390 range 11 64 if ARCH_SHMOBILE
1391 default "9" if SA1111
1392 default "11"
1393 help
1394 The kernel memory allocator divides physically contiguous memory
1395 blocks into "zones", where each zone is a power of two number of
1396 pages. This option selects the largest power of two that the kernel
1397 keeps in the memory allocator. If you need to allocate very large
1398 blocks of physically contiguous memory, then you may need to
1399 increase this value.
1400
1401 This config option is actually maximum order plus one. For example,
1402 a value of 11 means that the largest free memory block is 2^10 pages.
1403
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404config LEDS
1405 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001406 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001407 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1409 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001410 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001411 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001412 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413 help
1414 If you say Y here, the LEDs on your machine will be used
1415 to provide useful information about your current system status.
1416
1417 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1418 be able to select which LEDs are active using the options below. If
1419 you are compiling a kernel for the EBSA-110 or the LART however, the
1420 red LED will simply flash regularly to indicate that the system is
1421 still functional. It is safe to say Y here if you have a CATS
1422 system, but the driver will do nothing.
1423
1424config LEDS_TIMER
1425 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001426 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1427 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001429 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001430 default y if ARCH_EBSA110
1431 help
1432 If you say Y here, one of the system LEDs (the green one on the
1433 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1434 will flash regularly to indicate that the system is still
1435 operational. This is mainly useful to kernel hackers who are
1436 debugging unstable kernels.
1437
1438 The LART uses the same LED for both Timer LED and CPU usage LED
1439 functions. You may choose to use both, but the Timer LED function
1440 will overrule the CPU usage LED.
1441
1442config LEDS_CPU
1443 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001444 !ARCH_OMAP) \
1445 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1446 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447 depends on LEDS
1448 help
1449 If you say Y here, the red LED will be used to give a good real
1450 time indication of CPU usage, by lighting whenever the idle task
1451 is not currently executing.
1452
1453 The LART uses the same LED for both Timer LED and CPU usage LED
1454 functions. You may choose to use both, but the Timer LED function
1455 will overrule the CPU usage LED.
1456
1457config ALIGNMENT_TRAP
1458 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001459 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001461 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001462 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001463 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1465 address divisible by 4. On 32-bit ARM processors, these non-aligned
1466 fetch/store instructions will be emulated in software if you say
1467 here, which has a severe performance impact. This is necessary for
1468 correct operation of some network protocols. With an IP-only
1469 configuration it is safe to say N, otherwise say Y.
1470
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001471config UACCESS_WITH_MEMCPY
1472 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1473 depends on MMU && EXPERIMENTAL
1474 default y if CPU_FEROCEON
1475 help
1476 Implement faster copy_to_user and clear_user methods for CPU
1477 cores where a 8-word STM instruction give significantly higher
1478 memory write throughput than a sequence of individual 32bit stores.
1479
1480 A possible side effect is a slight increase in scheduling latency
1481 between threads sharing the same address space if they invoke
1482 such copy operations with large buffers.
1483
1484 However, if the CPU data cache is using a write-allocate mode,
1485 this option is unlikely to provide any performance gain.
1486
Nicolas Pitrec743f382010-05-24 23:55:42 -04001487config CC_STACKPROTECTOR
1488 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1489 help
1490 This option turns on the -fstack-protector GCC feature. This
1491 feature puts, at the beginning of functions, a canary value on
1492 the stack just before the return address, and validates
1493 the value just before actually returning. Stack based buffer
1494 overflows (that need to overwrite this return address) now also
1495 overwrite the canary, which gets detected and the attack is then
1496 neutralized via a kernel panic.
1497 This feature requires gcc version 4.2 or above.
1498
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001499config DEPRECATED_PARAM_STRUCT
1500 bool "Provide old way to pass kernel parameters"
1501 help
1502 This was deprecated in 2001 and announced to live on for 5 years.
1503 Some old boot loaders still use this way.
1504
Linus Torvalds1da177e2005-04-16 15:20:36 -07001505endmenu
1506
1507menu "Boot options"
1508
1509# Compressed boot loader in ROM. Yes, we really want to ask about
1510# TEXT and BSS so we preserve their values in the config files.
1511config ZBOOT_ROM_TEXT
1512 hex "Compressed ROM boot loader base address"
1513 default "0"
1514 help
1515 The physical address at which the ROM-able zImage is to be
1516 placed in the target. Platforms which normally make use of
1517 ROM-able zImage formats normally set this to a suitable
1518 value in their defconfig file.
1519
1520 If ZBOOT_ROM is not enabled, this has no effect.
1521
1522config ZBOOT_ROM_BSS
1523 hex "Compressed ROM boot loader BSS address"
1524 default "0"
1525 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001526 The base address of an area of read/write memory in the target
1527 for the ROM-able zImage which must be available while the
1528 decompressor is running. It must be large enough to hold the
1529 entire decompressed kernel plus an additional 128 KiB.
1530 Platforms which normally make use of ROM-able zImage formats
1531 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001532
1533 If ZBOOT_ROM is not enabled, this has no effect.
1534
1535config ZBOOT_ROM
1536 bool "Compressed boot loader in ROM/flash"
1537 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1538 help
1539 Say Y here if you intend to execute your compressed kernel image
1540 (zImage) directly from ROM or flash. If unsure, say N.
1541
1542config CMDLINE
1543 string "Default kernel command string"
1544 default ""
1545 help
1546 On some architectures (EBSA110 and CATS), there is currently no way
1547 for the boot loader to pass arguments to the kernel. For these
1548 architectures, you should supply some command-line options at build
1549 time by entering them here. As a minimum, you should specify the
1550 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1551
Alexander Holler92d20402010-02-16 19:04:53 +01001552config CMDLINE_FORCE
1553 bool "Always use the default kernel command string"
1554 depends on CMDLINE != ""
1555 help
1556 Always use the default kernel command string, even if the boot
1557 loader passes other arguments to the kernel.
1558 This is useful if you cannot or don't want to change the
1559 command-line options your boot loader passes to the kernel.
1560
1561 If unsure, say N.
1562
Linus Torvalds1da177e2005-04-16 15:20:36 -07001563config XIP_KERNEL
1564 bool "Kernel Execute-In-Place from ROM"
1565 depends on !ZBOOT_ROM
1566 help
1567 Execute-In-Place allows the kernel to run from non-volatile storage
1568 directly addressable by the CPU, such as NOR flash. This saves RAM
1569 space since the text section of the kernel is not loaded from flash
1570 to RAM. Read-write sections, such as the data section and stack,
1571 are still copied to RAM. The XIP kernel is not compressed since
1572 it has to run directly from flash, so it will take more space to
1573 store it. The flash address used to link the kernel object files,
1574 and for storing it, is configuration dependent. Therefore, if you
1575 say Y here, you must know the proper physical address where to
1576 store the kernel image depending on your own flash memory usage.
1577
1578 Also note that the make target becomes "make xipImage" rather than
1579 "make zImage" or "make Image". The final kernel binary to put in
1580 ROM memory will be arch/arm/boot/xipImage.
1581
1582 If unsure, say N.
1583
1584config XIP_PHYS_ADDR
1585 hex "XIP Kernel Physical Location"
1586 depends on XIP_KERNEL
1587 default "0x00080000"
1588 help
1589 This is the physical address in your flash memory the kernel will
1590 be linked for and stored to. This address is dependent on your
1591 own flash usage.
1592
Richard Purdiec587e4a2007-02-06 21:29:00 +01001593config KEXEC
1594 bool "Kexec system call (EXPERIMENTAL)"
1595 depends on EXPERIMENTAL
1596 help
1597 kexec is a system call that implements the ability to shutdown your
1598 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001599 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001600 you can start any kernel with it, not just Linux.
1601
1602 It is an ongoing process to be certain the hardware in a machine
1603 is properly shutdown, so do not be surprised if this code does not
1604 initially work for you. It may help to enable device hotplugging
1605 support.
1606
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001607config ATAGS_PROC
1608 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001609 depends on KEXEC
1610 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001611 help
1612 Should the atags used to boot the kernel be exported in an "atags"
1613 file in procfs. Useful with kexec.
1614
Eric Miaoe69edc792010-07-05 15:56:50 +02001615config AUTO_ZRELADDR
1616 bool "Auto calculation of the decompressed kernel image address"
1617 depends on !ZBOOT_ROM && !ARCH_U300
1618 help
1619 ZRELADDR is the physical address where the decompressed kernel
1620 image will be placed. If AUTO_ZRELADDR is selected, the address
1621 will be determined at run-time by masking the current IP with
1622 0xf8000000. This assumes the zImage being placed in the first 128MB
1623 from start of memory.
1624
Linus Torvalds1da177e2005-04-16 15:20:36 -07001625endmenu
1626
Russell Kingac9d7ef2008-08-18 17:26:00 +01001627menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001628
Ben Dooks89c52ed2009-07-30 23:23:24 +01001629if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001630
1631source "drivers/cpufreq/Kconfig"
1632
1633config CPU_FREQ_SA1100
1634 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001635
1636config CPU_FREQ_SA1110
1637 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001638
1639config CPU_FREQ_INTEGRATOR
1640 tristate "CPUfreq driver for ARM Integrator CPUs"
1641 depends on ARCH_INTEGRATOR && CPU_FREQ
1642 default y
1643 help
1644 This enables the CPUfreq driver for ARM Integrator CPUs.
1645
1646 For details, take a look at <file:Documentation/cpu-freq>.
1647
1648 If in doubt, say Y.
1649
Russell King9e2697f2007-12-14 13:30:14 +00001650config CPU_FREQ_PXA
1651 bool
1652 depends on CPU_FREQ && ARCH_PXA && PXA25x
1653 default y
1654 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1655
Mark Brownb3748dd2009-06-15 11:23:20 +01001656config CPU_FREQ_S3C64XX
1657 bool "CPUfreq support for Samsung S3C64XX CPUs"
1658 depends on CPU_FREQ && CPU_S3C6410
1659
Ben Dooks9d56c022009-07-30 23:23:25 +01001660config CPU_FREQ_S3C
1661 bool
1662 help
1663 Internal configuration node for common cpufreq on Samsung SoC
1664
1665config CPU_FREQ_S3C24XX
1666 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1667 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1668 select CPU_FREQ_S3C
1669 help
1670 This enables the CPUfreq driver for the Samsung S3C24XX family
1671 of CPUs.
1672
1673 For details, take a look at <file:Documentation/cpu-freq>.
1674
1675 If in doubt, say N.
1676
1677config CPU_FREQ_S3C24XX_PLL
1678 bool "Support CPUfreq changing of PLL frequency"
1679 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1680 help
1681 Compile in support for changing the PLL frequency from the
1682 S3C24XX series CPUfreq driver. The PLL takes time to settle
1683 after a frequency change, so by default it is not enabled.
1684
1685 This also means that the PLL tables for the selected CPU(s) will
1686 be built which may increase the size of the kernel image.
1687
1688config CPU_FREQ_S3C24XX_DEBUG
1689 bool "Debug CPUfreq Samsung driver core"
1690 depends on CPU_FREQ_S3C24XX
1691 help
1692 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1693
1694config CPU_FREQ_S3C24XX_IODEBUG
1695 bool "Debug CPUfreq Samsung driver IO timing"
1696 depends on CPU_FREQ_S3C24XX
1697 help
1698 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1699
Ben Dookse6d197a2009-07-30 23:23:42 +01001700config CPU_FREQ_S3C24XX_DEBUGFS
1701 bool "Export debugfs for CPUFreq"
1702 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1703 help
1704 Export status information via debugfs.
1705
Linus Torvalds1da177e2005-04-16 15:20:36 -07001706endif
1707
Russell Kingac9d7ef2008-08-18 17:26:00 +01001708source "drivers/cpuidle/Kconfig"
1709
1710endmenu
1711
Linus Torvalds1da177e2005-04-16 15:20:36 -07001712menu "Floating point emulation"
1713
1714comment "At least one emulation must be selected"
1715
1716config FPE_NWFPE
1717 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001718 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 ---help---
1720 Say Y to include the NWFPE floating point emulator in the kernel.
1721 This is necessary to run most binaries. Linux does not currently
1722 support floating point hardware so you need to say Y here even if
1723 your machine has an FPA or floating point co-processor podule.
1724
1725 You may say N here if you are going to load the Acorn FPEmulator
1726 early in the bootup.
1727
1728config FPE_NWFPE_XP
1729 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001730 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001731 help
1732 Say Y to include 80-bit support in the kernel floating-point
1733 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1734 Note that gcc does not generate 80-bit operations by default,
1735 so in most cases this option only enlarges the size of the
1736 floating point emulator without any good reason.
1737
1738 You almost surely want to say N here.
1739
1740config FPE_FASTFPE
1741 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001742 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001743 ---help---
1744 Say Y here to include the FAST floating point emulator in the kernel.
1745 This is an experimental much faster emulator which now also has full
1746 precision for the mantissa. It does not support any exceptions.
1747 It is very simple, and approximately 3-6 times faster than NWFPE.
1748
1749 It should be sufficient for most programs. It may be not suitable
1750 for scientific calculations, but you have to check this for yourself.
1751 If you do not feel you need a faster FP emulation you should better
1752 choose NWFPE.
1753
1754config VFP
1755 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001756 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757 help
1758 Say Y to include VFP support code in the kernel. This is needed
1759 if your hardware includes a VFP unit.
1760
1761 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1762 release notes and additional status information.
1763
1764 Say N if your target does not have VFP hardware.
1765
Catalin Marinas25ebee02007-09-25 15:22:24 +01001766config VFPv3
1767 bool
1768 depends on VFP
1769 default y if CPU_V7
1770
Catalin Marinasb5872db2008-01-10 19:16:17 +01001771config NEON
1772 bool "Advanced SIMD (NEON) Extension support"
1773 depends on VFPv3 && CPU_V7
1774 help
1775 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1776 Extension.
1777
Linus Torvalds1da177e2005-04-16 15:20:36 -07001778endmenu
1779
1780menu "Userspace binary formats"
1781
1782source "fs/Kconfig.binfmt"
1783
1784config ARTHUR
1785 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001786 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001787 help
1788 Say Y here to include the kernel code necessary if you want to run
1789 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1790 experimental; if this sounds frightening, say N and sleep in peace.
1791 You can also say M here to compile this support as a module (which
1792 will be called arthur).
1793
1794endmenu
1795
1796menu "Power management options"
1797
Russell Kingeceab4a2005-11-15 11:31:41 +00001798source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799
Johannes Bergf4cb5702007-12-08 02:14:00 +01001800config ARCH_SUSPEND_POSSIBLE
1801 def_bool y
1802
Linus Torvalds1da177e2005-04-16 15:20:36 -07001803endmenu
1804
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001805source "net/Kconfig"
1806
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001807source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001808
1809source "fs/Kconfig"
1810
Linus Torvalds1da177e2005-04-16 15:20:36 -07001811source "arch/arm/Kconfig.debug"
1812
1813source "security/Kconfig"
1814
1815source "crypto/Kconfig"
1816
1817source "lib/Kconfig"