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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Will Deacond4c7b1f2010-11-04 18:24:22 +010010 select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Dave Martined7c84d2010-11-29 19:43:29 +010013 select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Will Deacon19852e52010-09-03 10:44:33 +010027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Linus Torvalds1da177e2005-04-16 15:20:36 -070031 help
32 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000033 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000035 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 Europe. There is an ARM Linux project with a web page at
37 <http://www.arm.linux.org.uk/>.
38
Russell King1a189b92008-04-13 21:41:55 +010039config HAVE_PWM
40 bool
41
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010042config MIGHT_HAVE_PCI
43 bool
44
Ralf Baechle75e71532007-02-09 17:08:58 +000045config SYS_SUPPORTS_APM_EMULATION
46 bool
47
Russell King112f38a42010-12-15 19:23:07 +000048config HAVE_SCHED_CLOCK
49 bool
50
David Brownell0a938b92007-03-05 00:30:18 -080051config GENERIC_GPIO
52 bool
David Brownell0a938b92007-03-05 00:30:18 -080053
John Stultz5cfc8ee2010-03-24 00:22:36 +000054config ARCH_USES_GETTIMEOFFSET
55 bool
56 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010057
Kevin Hilman0567a0c2007-03-13 20:29:24 +010058config GENERIC_CLOCKEVENTS
59 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010060
Catalin Marinasa8655e82008-02-04 17:30:57 +010061config GENERIC_CLOCKEVENTS_BROADCAST
62 bool
63 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010064 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010065
Linus Walleijbc581772009-09-15 17:30:37 +010066config HAVE_TCM
67 bool
68 select GENERIC_ALLOCATOR
69
Russell Kinge119bff2010-01-10 17:23:29 +000070config HAVE_PROC_CPU
71 bool
72
Al Viro5ea81762007-02-11 15:41:31 +000073config NO_IOPORT
74 bool
Al Viro5ea81762007-02-11 15:41:31 +000075
Linus Torvalds1da177e2005-04-16 15:20:36 -070076config EISA
77 bool
78 ---help---
79 The Extended Industry Standard Architecture (EISA) bus was
80 developed as an open alternative to the IBM MicroChannel bus.
81
82 The EISA bus provided some of the features of the IBM MicroChannel
83 bus while maintaining backward compatibility with cards made for
84 the older ISA bus. The EISA bus saw limited use between 1988 and
85 1995 when it was made obsolete by the PCI bus.
86
87 Say Y here if you are building a kernel for an EISA-based machine.
88
89 Otherwise, say N.
90
91config SBUS
92 bool
93
94config MCA
95 bool
96 help
97 MicroChannel Architecture is found in some IBM PS/2 machines and
98 laptops. It is a bus system similar to PCI or ISA. See
99 <file:Documentation/mca.txt> (and especially the web page given
100 there) before attempting to build an MCA bus kernel.
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
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100152config ARCH_HAS_CPU_IDLE_WAIT
153 def_bool y
154
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800155config GENERIC_HWEIGHT
156 bool
157 default y
158
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159config GENERIC_CALIBRATE_DELAY
160 bool
161 default y
162
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100163config ARCH_MAY_HAVE_PC_FDC
164 bool
165
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800166config ZONE_DMA
167 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800168
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800169config NEED_DMA_MAP_STATE
170 def_bool y
171
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172config GENERIC_ISA_DMA
173 bool
174
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175config FIQ
176 bool
177
Al Viro034d2f52005-12-19 16:27:59 -0500178config ARCH_MTD_XIP
179 bool
180
Hyok S. Choic760fc12006-03-27 15:18:50 +0100181config VECTORS_BASE
182 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900183 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100184 default DRAM_BASE if REMAP_VECTORS_TO_RAM
185 default 0x00000000
186 help
187 The base address of exception vectors.
188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189source "init/Kconfig"
190
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700191source "kernel/Kconfig.freezer"
192
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193menu "System Type"
194
Hyok S. Choi3c427972009-07-24 12:35:00 +0100195config MMU
196 bool "MMU-based Paged Memory Management Support"
197 default y
198 help
199 Select if you want MMU-based virtualised addressing space
200 support by paged memory management. If unsure, say 'Y'.
201
Russell Kingccf50e22010-03-15 19:03:06 +0000202#
203# The "ARM system type" choice list is ordered alphabetically by option
204# text. Please add new entries in the option alphabetic order.
205#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206choice
207 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000208 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100210config ARCH_AAEC2000
211 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000212 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100213 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700214 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000215 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100216 help
217 This enables support for systems based on the Agilent AAEC-2000
218
219config ARCH_INTEGRATOR
220 bool "ARM Ltd. Integrator family"
221 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100222 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100223 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000224 select ICST
Russell King13edd862010-01-15 21:49:23 +0000225 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000226 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100227 help
228 Support for ARM's Integrator platform.
229
230config ARCH_REALVIEW
231 bool "ARM Ltd. RealView family"
232 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100233 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000234 select HAVE_SCHED_CLOCK
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
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100248 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000249 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000250 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100251 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100252 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000253 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000254 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100255 help
256 This enables support for ARM Ltd Versatile board.
257
Russell Kingceade892010-02-11 21:44:53 +0000258config ARCH_VEXPRESS
259 bool "ARM Ltd. Versatile Express family"
260 select ARCH_WANT_OPTIONAL_GPIOLIB
261 select ARM_AMBA
262 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100263 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000264 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000265 select HAVE_CLK
Russell King0af85dd2010-12-15 21:58:50 +0000266 select HAVE_SCHED_CLOCK
Russell Kingceade892010-02-11 21:44:53 +0000267 select ICST
268 select PLAT_VERSATILE
269 help
270 This enables support for the ARM Ltd Versatile Express boards.
271
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100272config ARCH_AT91
273 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100274 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700275 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100276 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100277 This enables support for systems based on the Atmel AT91RM9200,
278 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100279
Russell Kingccf50e22010-03-15 19:03:06 +0000280config ARCH_BCMRING
281 bool "Broadcom BCMRING"
282 depends on MMU
283 select CPU_V6
284 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100285 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000286 select GENERIC_CLOCKEVENTS
287 select ARCH_WANT_OPTIONAL_GPIOLIB
288 help
289 Support for Broadcom's BCMRing platform.
290
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100292 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000293 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000294 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000295 help
296 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300298config ARCH_CNS3XXX
299 bool "Cavium Networks CNS3XXX family"
300 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300301 select GENERIC_CLOCKEVENTS
302 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100303 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400304 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300305 help
306 Support for Cavium Networks CNS3XXX platform.
307
Russell King788c9702009-04-26 14:21:59 +0100308config ARCH_GEMINI
309 bool "Cortina Systems Gemini"
310 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100311 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000312 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100313 help
314 Support for the Cortina Systems Gemini family SoCs
315
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316config ARCH_EBSA110
317 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000318 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100319 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000320 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000321 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 help
323 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000324 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325 Ethernet interface, two PCMCIA sockets, two serial ports and a
326 parallel port.
327
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000328config ARCH_EP93XX
329 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000330 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000331 select ARM_AMBA
332 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100333 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700334 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100335 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000336 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000337 help
338 This enables support for the Cirrus EP93xx series of CPUs.
339
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340config ARCH_FOOTBRIDGE
341 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000342 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000344 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000345 help
346 Support for systems based on the DC21285 companion chip
347 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348
Russell King788c9702009-04-26 14:21:59 +0100349config ARCH_MXC
350 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100351 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100352 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100353 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100354 help
355 Support for Freescale MXC/iMX-based family of processors
356
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800357config ARCH_MXS
358 bool "Freescale MXS-based"
359 select GENERIC_CLOCKEVENTS
360 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100361 select CLKDEV_LOOKUP
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800362 help
363 Support for Freescale MXS-based family of processors
364
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100365config ARCH_STMP3XXX
366 bool "Freescale STMP3xxx"
367 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100368 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100369 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100370 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100371 select USB_ARCH_HAS_EHCI
372 help
373 Support for systems based on the Freescale 3xxx CPUs.
374
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100375config ARCH_NETX
376 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000377 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100378 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100379 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000380 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100381 This enables support for systems based on the Hilscher NetX Soc
382
383config ARCH_H720X
384 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000385 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100386 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000387 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100388 help
389 This enables support for systems based on the Hynix HMS720x
390
Russell King3b938be2007-05-12 11:25:44 +0100391config ARCH_IOP13XX
392 bool "IOP13xx-based"
393 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000394 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100395 select PLAT_IOP
396 select PCI
397 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100398 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100399 help
400 Support for Intel's IOP13XX (XScale) family of processors.
401
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100402config ARCH_IOP32X
403 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100404 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
Russell Kingf7e68bb2005-05-05 14:49:01 +0100407 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100408 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000409 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100410 Support for Intel's 80219 and IOP32X (XScale) family of
411 processors.
412
413config ARCH_IOP33X
414 bool "IOP33x-based"
415 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000416 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100417 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100418 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100419 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100420 help
421 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422
Russell King3b938be2007-05-12 11:25:44 +0100423config ARCH_IXP23XX
424 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100425 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000426 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100427 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000428 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100429 help
Russell King3b938be2007-05-12 11:25:44 +0100430 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431
432config ARCH_IXP2000
433 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100434 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000435 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100436 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000437 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000438 help
439 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440
Russell King3b938be2007-05-12 11:25:44 +0100441config ARCH_IXP4XX
442 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100443 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000444 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100445 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100446 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000447 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100448 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100449 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100450 help
Russell King3b938be2007-05-12 11:25:44 +0100451 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100452
Saeed Bisharaedabd382009-08-06 15:12:43 +0300453config ARCH_DOVE
454 bool "Marvell Dove"
455 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300456 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300457 select GENERIC_CLOCKEVENTS
458 select PLAT_ORION
459 help
460 Support for the Marvell Dove SoC 88AP510
461
Saeed Bishara651c74c2008-06-22 22:45:06 +0200462config ARCH_KIRKWOOD
463 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000464 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200465 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700466 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200467 select GENERIC_CLOCKEVENTS
468 select PLAT_ORION
469 help
470 Support for the following Marvell Kirkwood series SoCs:
471 88F6180, 88F6192 and 88F6281.
472
Russell King788c9702009-04-26 14:21:59 +0100473config ARCH_LOKI
474 bool "Marvell Loki (88RC8480)"
475 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100476 select GENERIC_CLOCKEVENTS
477 select PLAT_ORION
478 help
479 Support for the Marvell Loki (88RC8480) SoC.
480
Kevin Wells40805942010-07-27 08:49:04 -0700481config ARCH_LPC32XX
482 bool "NXP LPC32XX"
483 select CPU_ARM926T
484 select ARCH_REQUIRE_GPIOLIB
485 select HAVE_IDE
486 select ARM_AMBA
487 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100488 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700489 select GENERIC_TIME
490 select GENERIC_CLOCKEVENTS
491 help
492 Support for the NXP LPC32XX family of processors
493
Russell King788c9702009-04-26 14:21:59 +0100494config ARCH_MV78XX0
495 bool "Marvell MV78xx0"
496 select CPU_FEROCEON
497 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700498 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100499 select GENERIC_CLOCKEVENTS
500 select PLAT_ORION
501 help
502 Support for the following Marvell MV78xx0 series SoCs:
503 MV781x0, MV782x0.
504
505config ARCH_ORION5X
506 bool "Marvell Orion"
507 depends on MMU
508 select CPU_FEROCEON
509 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700510 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100511 select GENERIC_CLOCKEVENTS
512 select PLAT_ORION
513 help
514 Support for the following Marvell Orion 5x series SoCs:
515 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
516 Orion-2 (5281), Orion-1-90 (6183).
517
518config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500519 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100520 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100521 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100522 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100523 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000524 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100525 select TICK_ONESHOT
526 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400527 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100528 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500529 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100530
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100531config ARCH_KS8695
532 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000533 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100534 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000535 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100536 help
537 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
538 System-on-Chip devices.
539
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100540config ARCH_NS9XXX
541 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000542 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100543 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100544 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700545 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100546 help
547 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
548 System.
549
550 <http://www.digi.com/products/microprocessors/index.jsp>
551
Russell King788c9702009-04-26 14:21:59 +0100552config ARCH_W90X900
553 bool "Nuvoton W90X900 CPU"
554 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100555 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100556 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100557 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200558 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100559 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
560 At present, the w90x900 has been renamed nuc900, regarding
561 the ARM series product line, you can login the following
562 link address to know more.
563
564 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
565 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400566
wanzongshuna62e9032009-12-31 15:06:05 +0100567config ARCH_NUC93X
568 bool "Nuvoton NUC93X CPU"
569 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100570 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100571 help
572 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
573 low-power and high performance MPEG-4/JPEG multimedia controller chip.
574
Erik Gillingc5f80062010-01-21 16:53:02 -0800575config ARCH_TEGRA
576 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000577 select CLKDEV_LOOKUP
Erik Gillingc5f80062010-01-21 16:53:02 -0800578 select GENERIC_TIME
579 select GENERIC_CLOCKEVENTS
580 select GENERIC_GPIO
581 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000582 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800583 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700584 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800585 help
586 This enables support for NVIDIA Tegra based systems (Tegra APX,
587 Tegra 6xx and Tegra 2 series).
588
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100589config ARCH_PNX4008
590 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000591 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100592 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000593 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100594 help
595 This enables support for Philips PNX4008 mobile platform.
596
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700598 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100599 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500600 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100601 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100602 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700603 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100604 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000605 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000606 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800607 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800608 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000609 help
eric miao2c8086a2007-09-11 19:13:17 -0700610 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700611
Russell King788c9702009-04-26 14:21:59 +0100612config ARCH_MSM
613 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500614 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800615 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700616 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800617 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800618 Support for Qualcomm MSM/QSD based systems. This runs on the
619 apps processor of the MSM/QSD and depends on a shared memory
620 interface to the modem processor which runs the baseband
621 stack and controls some vital subsystems
622 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800623
Magnus Dammc793c1b2010-02-05 11:14:49 +0000624config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900625 bool "Renesas SH-Mobile / R-Mobile"
626 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900627 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900628 select GENERIC_CLOCKEVENTS
629 select NO_IOPORT
630 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000631 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000632 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900633 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000634
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635config ARCH_RPC
636 bool "RiscPC"
637 select ARCH_ACORN
638 select FIQ
639 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100640 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100641 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000642 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000643 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100644 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000645 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700646 help
647 On the Acorn Risc-PC, Linux can support the internal IDE disk and
648 CD-ROM interface, serial and parallel port, and the floppy drive.
649
650config ARCH_SA1100
651 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000652 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100653 select ISA
Russell King05944d72006-11-30 20:43:51 +0000654 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500655 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100656 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000657 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100658 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700659 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000660 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100661 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700662 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000663 help
664 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665
666config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900667 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800668 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100669 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700670 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000671 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900672 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673 help
674 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
675 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000676 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677
Ben Dooks63b1f512010-04-30 16:32:26 +0900678 Note, the S3C2416 and the S3C2450 are so close that they even share
679 the same SoC ID code. This means that there is no seperate machine
680 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
681
Ben Dooksa08ab632008-10-21 14:06:39 +0100682config ARCH_S3C64XX
683 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000684 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900685 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900686 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100687 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900688 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000689 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100690 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900691 select ARCH_REQUIRE_GPIOLIB
692 select SAMSUNG_CLKSRC
693 select SAMSUNG_IRQ_VIC_TIMER
694 select SAMSUNG_IRQ_UART
695 select S3C_GPIO_TRACK
696 select S3C_GPIO_PULL_UPDOWN
697 select S3C_GPIO_CFG_S3C24XX
698 select S3C_GPIO_CFG_S3C64XX
699 select S3C_DEV_NAND
700 select USB_ARCH_HAS_OHCI
701 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900702 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900703 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100704 help
705 Samsung S3C64XX series based systems
706
Kukjin Kim49b7a492010-09-07 15:47:18 +0900707config ARCH_S5P64X0
708 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900709 select CPU_V6
710 select GENERIC_GPIO
711 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900712 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900713 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900714 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900715 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900716 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900717 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
718 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900719
Kukjin Kim550db7f2010-01-29 10:19:26 +0900720config ARCH_S5P6442
721 bool "Samsung S5P6442"
722 select CPU_V6
723 select GENERIC_GPIO
724 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900725 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900726 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900727 help
728 Samsung S5P6442 CPU based systems
729
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200730config ARCH_S5PC100
731 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900732 select GENERIC_GPIO
733 select HAVE_CLK
734 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100735 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900736 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900737 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900738 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900739 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900740 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200741 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900742
Kukjin Kim170f4e42010-02-24 16:40:44 +0900743config ARCH_S5PV210
744 bool "Samsung S5PV210/S5PC110"
745 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900746 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900747 select GENERIC_GPIO
748 select HAVE_CLK
749 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900750 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900751 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900752 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900753 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900754 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900755 help
756 Samsung S5PV210/S5PC110 series based systems
757
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900758config ARCH_S5PV310
759 bool "Samsung S5PV310/S5PC210"
760 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900761 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900762 select GENERIC_GPIO
763 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900764 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900765 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900766 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900767 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900768 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900769 help
770 Samsung S5PV310 series based systems
771
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772config ARCH_SHARK
773 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000774 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100775 select ISA
776 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100777 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100778 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000779 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000780 help
781 Support for the StrongARM based Digital DNARD machine, also known
782 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783
Hans J. Koch83ef3332010-09-17 18:13:56 +0200784config ARCH_TCC_926
785 bool "Telechips TCC ARM926-based systems"
786 select CPU_ARM926T
787 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100788 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200789 select GENERIC_CLOCKEVENTS
790 help
791 Support for Telechips TCC ARM926-based systems.
792
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793config ARCH_LH7A40X
794 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000795 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100796 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000797 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798 help
799 Say Y here for systems based on one of the Sharp LH7A40X
800 System on a Chip processors. These CPUs include an ARM922T
801 core with a wide array of integrated devices for
802 hand-held and low-power applications.
803
Linus Walleijd98aac72009-04-27 10:21:46 +0100804config ARCH_U300
805 bool "ST-Ericsson U300 Series"
806 depends on MMU
807 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000808 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100809 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100810 select ARM_AMBA
811 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100812 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100813 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100814 select GENERIC_GPIO
815 help
816 Support for ST-Ericsson U300 series mobile platforms.
817
Russell Kingccf50e22010-03-15 19:03:06 +0000818config ARCH_U8500
819 bool "ST-Ericsson U8500 Series"
820 select CPU_V7
821 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000822 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100823 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100824 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100825 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000826 help
827 Support for ST-Ericsson's Ux500 architecture
828
829config ARCH_NOMADIK
830 bool "STMicroelectronics Nomadik"
831 select ARM_AMBA
832 select ARM_VIC
833 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100834 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000835 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000836 select ARCH_REQUIRE_GPIOLIB
837 help
838 Support for the Nomadik platform by ST-Ericsson
839
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100840config ARCH_DAVINCI
841 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100842 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700843 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100844 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700845 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100846 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700847 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530848 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100849 help
850 Support for TI's DaVinci platform.
851
Russell King3b938be2007-05-12 11:25:44 +0100852config ARCH_OMAP
853 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700854 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700855 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100856 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700857 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000858 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800859 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100860 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200861 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100862
viresh kumarcee37e52010-04-01 12:31:05 +0100863config PLAT_SPEAR
864 bool "ST SPEAr"
865 select ARM_AMBA
866 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100867 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100868 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100869 select HAVE_CLK
870 help
871 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
872
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873endchoice
874
Russell Kingccf50e22010-03-15 19:03:06 +0000875#
876# This is sorted alphabetically by mach-* pathname. However, plat-*
877# Kconfigs may be included either alphabetically (according to the
878# plat- suffix) or along side the corresponding mach-* source.
879#
Russell King95b8f202010-01-14 11:43:54 +0000880source "arch/arm/mach-aaec2000/Kconfig"
881
882source "arch/arm/mach-at91/Kconfig"
883
884source "arch/arm/mach-bcmring/Kconfig"
885
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886source "arch/arm/mach-clps711x/Kconfig"
887
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300888source "arch/arm/mach-cns3xxx/Kconfig"
889
Russell King95b8f202010-01-14 11:43:54 +0000890source "arch/arm/mach-davinci/Kconfig"
891
892source "arch/arm/mach-dove/Kconfig"
893
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000894source "arch/arm/mach-ep93xx/Kconfig"
895
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896source "arch/arm/mach-footbridge/Kconfig"
897
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200898source "arch/arm/mach-gemini/Kconfig"
899
Russell King95b8f202010-01-14 11:43:54 +0000900source "arch/arm/mach-h720x/Kconfig"
901
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902source "arch/arm/mach-integrator/Kconfig"
903
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100904source "arch/arm/mach-iop32x/Kconfig"
905
906source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700907
Dan Williams285f5fa2006-12-07 02:59:39 +0100908source "arch/arm/mach-iop13xx/Kconfig"
909
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910source "arch/arm/mach-ixp4xx/Kconfig"
911
912source "arch/arm/mach-ixp2000/Kconfig"
913
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100914source "arch/arm/mach-ixp23xx/Kconfig"
915
Russell King95b8f202010-01-14 11:43:54 +0000916source "arch/arm/mach-kirkwood/Kconfig"
917
918source "arch/arm/mach-ks8695/Kconfig"
919
920source "arch/arm/mach-lh7a40x/Kconfig"
921
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200922source "arch/arm/mach-loki/Kconfig"
923
Kevin Wells40805942010-07-27 08:49:04 -0700924source "arch/arm/mach-lpc32xx/Kconfig"
925
Russell King95b8f202010-01-14 11:43:54 +0000926source "arch/arm/mach-msm/Kconfig"
927
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200928source "arch/arm/mach-mv78xx0/Kconfig"
929
Russell King95b8f202010-01-14 11:43:54 +0000930source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800932source "arch/arm/mach-mxs/Kconfig"
933
Russell King95b8f202010-01-14 11:43:54 +0000934source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800935
Russell King95b8f202010-01-14 11:43:54 +0000936source "arch/arm/mach-nomadik/Kconfig"
937source "arch/arm/plat-nomadik/Kconfig"
938
939source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940
Russell Kingd91a89102010-02-04 18:13:17 +0000941source "arch/arm/mach-nuc93x/Kconfig"
942
Tony Lindgrend48af152005-07-10 19:58:17 +0100943source "arch/arm/plat-omap/Kconfig"
944
945source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946
Tony Lindgren1dbae812005-11-10 14:26:51 +0000947source "arch/arm/mach-omap2/Kconfig"
948
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400949source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400950
Russell King95b8f202010-01-14 11:43:54 +0000951source "arch/arm/mach-pxa/Kconfig"
952source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700953
Russell King95b8f202010-01-14 11:43:54 +0000954source "arch/arm/mach-mmp/Kconfig"
955
956source "arch/arm/mach-realview/Kconfig"
957
958source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300959
Ben Dookscf383672009-11-10 00:14:58 +0000960source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100961source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900962source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100963
viresh kumarcee37e52010-04-01 12:31:05 +0100964source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100965
Hans J. Koch83ef3332010-09-17 18:13:56 +0200966source "arch/arm/plat-tcc/Kconfig"
967
Ben Dooksa21765a2007-02-11 18:31:01 +0100968if ARCH_S3C2410
969source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100971source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900972source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100973source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100974source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100975endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976
Ben Dooksa08ab632008-10-21 14:06:39 +0100977if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900978source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100979endif
980
Kukjin Kim49b7a492010-09-07 15:47:18 +0900981source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900982
Kukjin Kim550db7f2010-01-29 10:19:26 +0900983source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100984
Byungho Min5a7652f2009-06-23 21:39:42 +0900985source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900986
Kukjin Kim170f4e42010-02-24 16:40:44 +0900987source "arch/arm/mach-s5pv210/Kconfig"
988
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900989source "arch/arm/mach-s5pv310/Kconfig"
990
Russell King882d01f2010-03-02 23:40:15 +0000991source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992
Russell King882d01f2010-03-02 23:40:15 +0000993source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800994
Erik Gillingc5f80062010-01-21 16:53:02 -0800995source "arch/arm/mach-tegra/Kconfig"
996
Russell King95b8f202010-01-14 11:43:54 +0000997source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100998
Russell King95b8f202010-01-14 11:43:54 +0000999source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000
1001source "arch/arm/mach-versatile/Kconfig"
1002
Russell Kingceade892010-02-11 21:44:53 +00001003source "arch/arm/mach-vexpress/Kconfig"
1004
wanzongshun7ec80dd2008-12-03 03:55:38 +01001005source "arch/arm/mach-w90x900/Kconfig"
1006
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007# Definitions to make life easier
1008config ARCH_ACORN
1009 bool
1010
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001011config PLAT_IOP
1012 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001013 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001014 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001015
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001016config PLAT_ORION
1017 bool
Russell Kingf06a1622010-12-15 21:55:06 +00001018 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001019
Eric Miaobd5ce432009-01-20 12:06:01 +08001020config PLAT_PXA
1021 bool
1022
Russell Kingf4b8b312010-01-14 12:48:06 +00001023config PLAT_VERSATILE
1024 bool
1025
Russell Kinge3887712010-01-14 13:30:16 +00001026config ARM_TIMER_SP804
1027 bool
1028
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029source arch/arm/mm/Kconfig
1030
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001031config IWMMXT
1032 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001033 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1034 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001035 help
1036 Enable support for iWMMXt context switching at run time if
1037 running on a CPU that supports it.
1038
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1040config XSCALE_PMU
1041 bool
1042 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1043 default y
1044
Jamie Iles0f4f0672010-02-02 20:23:15 +01001045config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001046 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1047 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001048 default y
1049 bool
1050
eric miao52108642010-12-13 09:42:34 +01001051config MULTI_IRQ_HANDLER
1052 bool
1053 help
1054 Allow each machine to specify it's own IRQ handler at run time.
1055
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001056if !MMU
1057source "arch/arm/Kconfig-nommu"
1058endif
1059
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001060config ARM_ERRATA_411920
1061 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001062 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001063 help
1064 Invalidation of the Instruction Cache operation can
1065 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1066 It does not affect the MPCore. This option enables the ARM Ltd.
1067 recommended workaround.
1068
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001069config ARM_ERRATA_430973
1070 bool "ARM errata: Stale prediction on replaced interworking branch"
1071 depends on CPU_V7
1072 help
1073 This option enables the workaround for the 430973 Cortex-A8
1074 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1075 interworking branch is replaced with another code sequence at the
1076 same virtual address, whether due to self-modifying code or virtual
1077 to physical address re-mapping, Cortex-A8 does not recover from the
1078 stale interworking branch prediction. This results in Cortex-A8
1079 executing the new code sequence in the incorrect ARM or Thumb state.
1080 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1081 and also flushes the branch target cache at every context switch.
1082 Note that setting specific bits in the ACTLR register may not be
1083 available in non-secure mode.
1084
Catalin Marinas855c5512009-04-30 17:06:15 +01001085config ARM_ERRATA_458693
1086 bool "ARM errata: Processor deadlock when a false hazard is created"
1087 depends on CPU_V7
1088 help
1089 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1090 erratum. For very specific sequences of memory operations, it is
1091 possible for a hazard condition intended for a cache line to instead
1092 be incorrectly associated with a different cache line. This false
1093 hazard might then cause a processor deadlock. The workaround enables
1094 the L1 caching of the NEON accesses and disables the PLD instruction
1095 in the ACTLR register. Note that setting specific bits in the ACTLR
1096 register may not be available in non-secure mode.
1097
Catalin Marinas0516e462009-04-30 17:06:20 +01001098config ARM_ERRATA_460075
1099 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1100 depends on CPU_V7
1101 help
1102 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1103 erratum. Any asynchronous access to the L2 cache may encounter a
1104 situation in which recent store transactions to the L2 cache are lost
1105 and overwritten with stale memory contents from external memory. The
1106 workaround disables the write-allocate mode for the L2 cache via the
1107 ACTLR register. Note that setting specific bits in the ACTLR register
1108 may not be available in non-secure mode.
1109
Will Deacon9f050272010-09-14 09:51:43 +01001110config ARM_ERRATA_742230
1111 bool "ARM errata: DMB operation may be faulty"
1112 depends on CPU_V7 && SMP
1113 help
1114 This option enables the workaround for the 742230 Cortex-A9
1115 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1116 between two write operations may not ensure the correct visibility
1117 ordering of the two writes. This workaround sets a specific bit in
1118 the diagnostic register of the Cortex-A9 which causes the DMB
1119 instruction to behave as a DSB, ensuring the correct behaviour of
1120 the two writes.
1121
Will Deacona672e992010-09-14 09:53:02 +01001122config ARM_ERRATA_742231
1123 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1124 depends on CPU_V7 && SMP
1125 help
1126 This option enables the workaround for the 742231 Cortex-A9
1127 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1128 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1129 accessing some data located in the same cache line, may get corrupted
1130 data due to bad handling of the address hazard when the line gets
1131 replaced from one of the CPUs at the same time as another CPU is
1132 accessing it. This workaround sets specific bits in the diagnostic
1133 register of the Cortex-A9 which reduces the linefill issuing
1134 capabilities of the processor.
1135
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001136config PL310_ERRATA_588369
1137 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001138 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001139 help
1140 The PL310 L2 cache controller implements three types of Clean &
1141 Invalidate maintenance operations: by Physical Address
1142 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1143 They are architecturally defined to behave as the execution of a
1144 clean operation followed immediately by an invalidate operation,
1145 both performing to the same memory location. This functionality
1146 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001147 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001148
1149config ARM_ERRATA_720789
1150 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1151 depends on CPU_V7 && SMP
1152 help
1153 This option enables the workaround for the 720789 Cortex-A9 (prior to
1154 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1155 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1156 As a consequence of this erratum, some TLB entries which should be
1157 invalidated are not, resulting in an incoherency in the system page
1158 tables. The workaround changes the TLB flushing routines to invalidate
1159 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001160
1161config ARM_ERRATA_743622
1162 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1163 depends on CPU_V7
1164 help
1165 This option enables the workaround for the 743622 Cortex-A9
1166 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1167 optimisation in the Cortex-A9 Store Buffer may lead to data
1168 corruption. This workaround sets a specific bit in the diagnostic
1169 register of the Cortex-A9 which disables the Store Buffer
1170 optimisation, preventing the defect from occurring. This has no
1171 visible impact on the overall performance or power consumption of the
1172 processor.
1173
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001174config PL310_ERRATA_727915
1175 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1176 depends on CACHE_L2X0
1177 help
1178 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1179 operation (offset 0x7FC). This operation runs in background so that
1180 PL310 can handle normal accesses while it is in progress. Under very
1181 rare circumstances, due to this erratum, write data can be lost when
1182 PL310 treats a cacheable write transaction during a Clean &
1183 Invalidate by Way operation.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184endmenu
1185
1186source "arch/arm/common/Kconfig"
1187
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188menu "Bus support"
1189
1190config ARM_AMBA
1191 bool
1192
1193config ISA
1194 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001195 help
1196 Find out whether you have ISA slots on your motherboard. ISA is the
1197 name of a bus system, i.e. the way the CPU talks to the other stuff
1198 inside your box. Other bus systems are PCI, EISA, MicroChannel
1199 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1200 newer boards don't support it. If you have ISA, say Y, otherwise N.
1201
Russell King065909b2006-01-04 15:44:16 +00001202# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001203config ISA_DMA
1204 bool
Russell King065909b2006-01-04 15:44:16 +00001205 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206
Russell King065909b2006-01-04 15:44:16 +00001207# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001208config ISA_DMA_API
1209 bool
Al Viro5cae8412005-05-04 05:39:22 +01001210
Linus Torvalds1da177e2005-04-16 15:20:36 -07001211config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001212 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001213 help
1214 Find out whether you have a PCI motherboard. PCI is the name of a
1215 bus system, i.e. the way the CPU talks to the other stuff inside
1216 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1217 VESA. If you have PCI, say Y, otherwise N.
1218
Anton Vorontsov52882172010-04-19 13:20:49 +01001219config PCI_DOMAINS
1220 bool
1221 depends on PCI
1222
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001223config PCI_NANOENGINE
1224 bool "BSE nanoEngine PCI support"
1225 depends on SA1100_NANOENGINE
1226 help
1227 Enable PCI on the BSE nanoEngine board.
1228
Matthew Wilcox36e23592007-07-10 10:54:40 -06001229config PCI_SYSCALL
1230 def_bool PCI
1231
Linus Torvalds1da177e2005-04-16 15:20:36 -07001232# Select the host bridge type
1233config PCI_HOST_VIA82C505
1234 bool
1235 depends on PCI && ARCH_SHARK
1236 default y
1237
Mike Rapoporta0113a92007-11-25 08:55:34 +01001238config PCI_HOST_ITE8152
1239 bool
1240 depends on PCI && MACH_ARMCORE
1241 default y
1242 select DMABOUNCE
1243
Linus Torvalds1da177e2005-04-16 15:20:36 -07001244source "drivers/pci/Kconfig"
1245
1246source "drivers/pcmcia/Kconfig"
1247
1248endmenu
1249
1250menu "Kernel Features"
1251
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001252source "kernel/time/Kconfig"
1253
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254config SMP
1255 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001256 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001257 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001258 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001259 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1260 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001261 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001262 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001263 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264 help
1265 This enables support for systems with more than one CPU. If you have
1266 a system with only one CPU, like most personal computers, say N. If
1267 you have a system with more than one CPU, say Y.
1268
1269 If you say N here, the kernel will run on single and multiprocessor
1270 machines, but will use only one CPU of a multiprocessor machine. If
1271 you say Y here, the kernel will run on many, but not all, single
1272 processor machines. On a single processor machine, the kernel will
1273 run faster if you say N here.
1274
Adrian Bunk03502fa2008-02-03 15:50:21 +02001275 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001277 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001278
1279 If you don't know what to do here, say N.
1280
Russell Kingf00ec482010-09-04 10:47:48 +01001281config SMP_ON_UP
1282 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1283 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001284 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001285 default y
1286 help
1287 SMP kernels contain instructions which fail on non-SMP processors.
1288 Enabling this option allows the kernel to modify itself to make
1289 these instructions safe. Disabling it allows about 1K of space
1290 savings.
1291
1292 If you don't know what to do here, say Y.
1293
Russell Kinga8cbcd92009-05-16 11:51:14 +01001294config HAVE_ARM_SCU
1295 bool
1296 depends on SMP
1297 help
1298 This option enables support for the ARM system coherency unit
1299
Russell Kingf32f4ce2009-05-16 12:14:21 +01001300config HAVE_ARM_TWD
1301 bool
1302 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001303 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001304 help
1305 This options enables support for the ARM timer and watchdog unit
1306
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001307choice
1308 prompt "Memory split"
1309 default VMSPLIT_3G
1310 help
1311 Select the desired split between kernel and user memory.
1312
1313 If you are not absolutely sure what you are doing, leave this
1314 option alone!
1315
1316 config VMSPLIT_3G
1317 bool "3G/1G user/kernel split"
1318 config VMSPLIT_2G
1319 bool "2G/2G user/kernel split"
1320 config VMSPLIT_1G
1321 bool "1G/3G user/kernel split"
1322endchoice
1323
1324config PAGE_OFFSET
1325 hex
1326 default 0x40000000 if VMSPLIT_1G
1327 default 0x80000000 if VMSPLIT_2G
1328 default 0xC0000000
1329
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330config NR_CPUS
1331 int "Maximum number of CPUs (2-32)"
1332 range 2 32
1333 depends on SMP
1334 default "4"
1335
Russell Kinga054a812005-11-02 22:24:33 +00001336config HOTPLUG_CPU
1337 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1338 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001339 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001340 help
1341 Say Y here to experiment with turning CPUs off and on. CPUs
1342 can be controlled through /sys/devices/system/cpu.
1343
Russell King37ee16a2005-11-08 19:08:05 +00001344config LOCAL_TIMERS
1345 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001346 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001347 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001348 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001349 help
1350 Enable support for local timers on SMP platforms, rather then the
1351 legacy IPI broadcast method. Local timers allows the system
1352 accounting to be spread across the timer interval, preventing a
1353 "thundering herd" at every timer tick.
1354
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001355source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001356
Russell Kingf8065812006-03-02 22:41:59 +00001357config HZ
1358 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001359 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001360 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001361 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001362 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001363 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001364 default 100
1365
Catalin Marinas16c79652009-07-24 12:33:02 +01001366config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001367 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Dave Martin6e6fc992010-12-13 21:53:53 +01001368 depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001369 select AEABI
1370 select ARM_ASM_UNIFIED
1371 help
1372 By enabling this option, the kernel will be compiled in
1373 Thumb-2 mode. A compiler/assembler that understand the unified
1374 ARM-Thumb syntax is needed.
1375
1376 If unsure, say N.
1377
Catalin Marinas0becb082009-07-24 12:32:53 +01001378config ARM_ASM_UNIFIED
1379 bool
1380
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001381config AEABI
1382 bool "Use the ARM EABI to compile the kernel"
1383 help
1384 This option allows for the kernel to be compiled using the latest
1385 ARM ABI (aka EABI). This is only useful if you are using a user
1386 space environment that is also compiled with EABI.
1387
1388 Since there are major incompatibilities between the legacy ABI and
1389 EABI, especially with regard to structure member alignment, this
1390 option also changes the kernel syscall calling convention to
1391 disambiguate both ABIs and allow for backward compatibility support
1392 (selected with CONFIG_OABI_COMPAT).
1393
1394 To use this you need GCC version 4.0.0 or later.
1395
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001396config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001397 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001398 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001399 default y
1400 help
1401 This option preserves the old syscall interface along with the
1402 new (ARM EABI) one. It also provides a compatibility layer to
1403 intercept syscalls that have structure arguments which layout
1404 in memory differs between the legacy ABI and the new ARM EABI
1405 (only for non "thumb" binaries). This option adds a tiny
1406 overhead to all syscalls and produces a slightly larger kernel.
1407 If you know you'll be using only pure EABI user space then you
1408 can say N here. If this option is not selected and you attempt
1409 to execute a legacy ABI binary then the result will be
1410 UNPREDICTABLE (in fact it can be predicted that it won't work
1411 at all). If in doubt say Y.
1412
Mel Gormaneb335752009-05-13 17:34:48 +01001413config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001414 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001415
Russell King05944d72006-11-30 20:43:51 +00001416config ARCH_SPARSEMEM_ENABLE
1417 bool
1418
Russell King07a2f732008-10-01 21:39:58 +01001419config ARCH_SPARSEMEM_DEFAULT
1420 def_bool ARCH_SPARSEMEM_ENABLE
1421
Russell King05944d72006-11-30 20:43:51 +00001422config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001423 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001424
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001425config HIGHMEM
1426 bool "High Memory Support (EXPERIMENTAL)"
1427 depends on MMU && EXPERIMENTAL
1428 help
1429 The address space of ARM processors is only 4 Gigabytes large
1430 and it has to accommodate user address space, kernel address
1431 space as well as some memory mapped IO. That means that, if you
1432 have a large amount of physical memory and/or IO, not all of the
1433 memory can be "permanently mapped" by the kernel. The physical
1434 memory that is not permanently mapped is called "high memory".
1435
1436 Depending on the selected kernel/user memory split, minimum
1437 vmalloc space and actual amount of RAM, you may not need this
1438 option which should result in a slightly faster kernel.
1439
1440 If unsure, say n.
1441
Russell King65cec8e2009-08-17 20:02:06 +01001442config HIGHPTE
1443 bool "Allocate 2nd-level pagetables from highmem"
1444 depends on HIGHMEM
1445 depends on !OUTER_CACHE
1446
Jamie Iles1b8873a2010-02-02 20:25:44 +01001447config HW_PERF_EVENTS
1448 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001449 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001450 default y
1451 help
1452 Enable hardware performance counter support for perf events. If
1453 disabled, perf events will use software events only.
1454
Dave Hansen3f22ab22005-06-23 00:07:43 -07001455source "mm/Kconfig"
1456
Magnus Dammc1b2d972010-07-05 10:00:11 +01001457config FORCE_MAX_ZONEORDER
1458 int "Maximum zone order" if ARCH_SHMOBILE
1459 range 11 64 if ARCH_SHMOBILE
1460 default "9" if SA1111
1461 default "11"
1462 help
1463 The kernel memory allocator divides physically contiguous memory
1464 blocks into "zones", where each zone is a power of two number of
1465 pages. This option selects the largest power of two that the kernel
1466 keeps in the memory allocator. If you need to allocate very large
1467 blocks of physically contiguous memory, then you may need to
1468 increase this value.
1469
1470 This config option is actually maximum order plus one. For example,
1471 a value of 11 means that the largest free memory block is 2^10 pages.
1472
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473config LEDS
1474 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001475 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001476 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1478 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001479 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001480 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001481 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482 help
1483 If you say Y here, the LEDs on your machine will be used
1484 to provide useful information about your current system status.
1485
1486 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1487 be able to select which LEDs are active using the options below. If
1488 you are compiling a kernel for the EBSA-110 or the LART however, the
1489 red LED will simply flash regularly to indicate that the system is
1490 still functional. It is safe to say Y here if you have a CATS
1491 system, but the driver will do nothing.
1492
1493config LEDS_TIMER
1494 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001495 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1496 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001497 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001498 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001499 default y if ARCH_EBSA110
1500 help
1501 If you say Y here, one of the system LEDs (the green one on the
1502 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1503 will flash regularly to indicate that the system is still
1504 operational. This is mainly useful to kernel hackers who are
1505 debugging unstable kernels.
1506
1507 The LART uses the same LED for both Timer LED and CPU usage LED
1508 functions. You may choose to use both, but the Timer LED function
1509 will overrule the CPU usage LED.
1510
1511config LEDS_CPU
1512 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001513 !ARCH_OMAP) \
1514 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1515 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001516 depends on LEDS
1517 help
1518 If you say Y here, the red LED will be used to give a good real
1519 time indication of CPU usage, by lighting whenever the idle task
1520 is not currently executing.
1521
1522 The LART uses the same LED for both Timer LED and CPU usage LED
1523 functions. You may choose to use both, but the Timer LED function
1524 will overrule the CPU usage LED.
1525
1526config ALIGNMENT_TRAP
1527 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001528 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001529 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001530 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001532 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001533 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1534 address divisible by 4. On 32-bit ARM processors, these non-aligned
1535 fetch/store instructions will be emulated in software if you say
1536 here, which has a severe performance impact. This is necessary for
1537 correct operation of some network protocols. With an IP-only
1538 configuration it is safe to say N, otherwise say Y.
1539
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001540config UACCESS_WITH_MEMCPY
1541 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1542 depends on MMU && EXPERIMENTAL
1543 default y if CPU_FEROCEON
1544 help
1545 Implement faster copy_to_user and clear_user methods for CPU
1546 cores where a 8-word STM instruction give significantly higher
1547 memory write throughput than a sequence of individual 32bit stores.
1548
1549 A possible side effect is a slight increase in scheduling latency
1550 between threads sharing the same address space if they invoke
1551 such copy operations with large buffers.
1552
1553 However, if the CPU data cache is using a write-allocate mode,
1554 this option is unlikely to provide any performance gain.
1555
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001556config SECCOMP
1557 bool
1558 prompt "Enable seccomp to safely compute untrusted bytecode"
1559 ---help---
1560 This kernel feature is useful for number crunching applications
1561 that may need to compute untrusted bytecode during their
1562 execution. By using pipes or other transports made available to
1563 the process as file descriptors supporting the read/write
1564 syscalls, it's possible to isolate those applications in
1565 their own address space using seccomp. Once seccomp is
1566 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1567 and the task is only allowed to execute a few safe syscalls
1568 defined by each seccomp mode.
1569
Nicolas Pitrec743f382010-05-24 23:55:42 -04001570config CC_STACKPROTECTOR
1571 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001572 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001573 help
1574 This option turns on the -fstack-protector GCC feature. This
1575 feature puts, at the beginning of functions, a canary value on
1576 the stack just before the return address, and validates
1577 the value just before actually returning. Stack based buffer
1578 overflows (that need to overwrite this return address) now also
1579 overwrite the canary, which gets detected and the attack is then
1580 neutralized via a kernel panic.
1581 This feature requires gcc version 4.2 or above.
1582
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001583config DEPRECATED_PARAM_STRUCT
1584 bool "Provide old way to pass kernel parameters"
1585 help
1586 This was deprecated in 2001 and announced to live on for 5 years.
1587 Some old boot loaders still use this way.
1588
Linus Torvalds1da177e2005-04-16 15:20:36 -07001589endmenu
1590
1591menu "Boot options"
1592
1593# Compressed boot loader in ROM. Yes, we really want to ask about
1594# TEXT and BSS so we preserve their values in the config files.
1595config ZBOOT_ROM_TEXT
1596 hex "Compressed ROM boot loader base address"
1597 default "0"
1598 help
1599 The physical address at which the ROM-able zImage is to be
1600 placed in the target. Platforms which normally make use of
1601 ROM-able zImage formats normally set this to a suitable
1602 value in their defconfig file.
1603
1604 If ZBOOT_ROM is not enabled, this has no effect.
1605
1606config ZBOOT_ROM_BSS
1607 hex "Compressed ROM boot loader BSS address"
1608 default "0"
1609 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001610 The base address of an area of read/write memory in the target
1611 for the ROM-able zImage which must be available while the
1612 decompressor is running. It must be large enough to hold the
1613 entire decompressed kernel plus an additional 128 KiB.
1614 Platforms which normally make use of ROM-able zImage formats
1615 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001616
1617 If ZBOOT_ROM is not enabled, this has no effect.
1618
1619config ZBOOT_ROM
1620 bool "Compressed boot loader in ROM/flash"
1621 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1622 help
1623 Say Y here if you intend to execute your compressed kernel image
1624 (zImage) directly from ROM or flash. If unsure, say N.
1625
1626config CMDLINE
1627 string "Default kernel command string"
1628 default ""
1629 help
1630 On some architectures (EBSA110 and CATS), there is currently no way
1631 for the boot loader to pass arguments to the kernel. For these
1632 architectures, you should supply some command-line options at build
1633 time by entering them here. As a minimum, you should specify the
1634 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1635
Alexander Holler92d20402010-02-16 19:04:53 +01001636config CMDLINE_FORCE
1637 bool "Always use the default kernel command string"
1638 depends on CMDLINE != ""
1639 help
1640 Always use the default kernel command string, even if the boot
1641 loader passes other arguments to the kernel.
1642 This is useful if you cannot or don't want to change the
1643 command-line options your boot loader passes to the kernel.
1644
1645 If unsure, say N.
1646
Linus Torvalds1da177e2005-04-16 15:20:36 -07001647config XIP_KERNEL
1648 bool "Kernel Execute-In-Place from ROM"
1649 depends on !ZBOOT_ROM
1650 help
1651 Execute-In-Place allows the kernel to run from non-volatile storage
1652 directly addressable by the CPU, such as NOR flash. This saves RAM
1653 space since the text section of the kernel is not loaded from flash
1654 to RAM. Read-write sections, such as the data section and stack,
1655 are still copied to RAM. The XIP kernel is not compressed since
1656 it has to run directly from flash, so it will take more space to
1657 store it. The flash address used to link the kernel object files,
1658 and for storing it, is configuration dependent. Therefore, if you
1659 say Y here, you must know the proper physical address where to
1660 store the kernel image depending on your own flash memory usage.
1661
1662 Also note that the make target becomes "make xipImage" rather than
1663 "make zImage" or "make Image". The final kernel binary to put in
1664 ROM memory will be arch/arm/boot/xipImage.
1665
1666 If unsure, say N.
1667
1668config XIP_PHYS_ADDR
1669 hex "XIP Kernel Physical Location"
1670 depends on XIP_KERNEL
1671 default "0x00080000"
1672 help
1673 This is the physical address in your flash memory the kernel will
1674 be linked for and stored to. This address is dependent on your
1675 own flash usage.
1676
Richard Purdiec587e4a2007-02-06 21:29:00 +01001677config KEXEC
1678 bool "Kexec system call (EXPERIMENTAL)"
1679 depends on EXPERIMENTAL
1680 help
1681 kexec is a system call that implements the ability to shutdown your
1682 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001683 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001684 you can start any kernel with it, not just Linux.
1685
1686 It is an ongoing process to be certain the hardware in a machine
1687 is properly shutdown, so do not be surprised if this code does not
1688 initially work for you. It may help to enable device hotplugging
1689 support.
1690
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001691config ATAGS_PROC
1692 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001693 depends on KEXEC
1694 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001695 help
1696 Should the atags used to boot the kernel be exported in an "atags"
1697 file in procfs. Useful with kexec.
1698
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001699config CRASH_DUMP
1700 bool "Build kdump crash kernel (EXPERIMENTAL)"
1701 depends on EXPERIMENTAL
1702 help
1703 Generate crash dump after being started by kexec. This should
1704 be normally only set in special crash dump kernels which are
1705 loaded in the main kernel with kexec-tools into a specially
1706 reserved region and then later executed after a crash by
1707 kdump/kexec. The crash dump kernel must be compiled to a
1708 memory address not used by the main kernel
1709
1710 For more details see Documentation/kdump/kdump.txt
1711
Eric Miaoe69edc792010-07-05 15:56:50 +02001712config AUTO_ZRELADDR
1713 bool "Auto calculation of the decompressed kernel image address"
1714 depends on !ZBOOT_ROM && !ARCH_U300
1715 help
1716 ZRELADDR is the physical address where the decompressed kernel
1717 image will be placed. If AUTO_ZRELADDR is selected, the address
1718 will be determined at run-time by masking the current IP with
1719 0xf8000000. This assumes the zImage being placed in the first 128MB
1720 from start of memory.
1721
Linus Torvalds1da177e2005-04-16 15:20:36 -07001722endmenu
1723
Russell Kingac9d7ef2008-08-18 17:26:00 +01001724menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001725
Ben Dooks89c52ed2009-07-30 23:23:24 +01001726if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727
1728source "drivers/cpufreq/Kconfig"
1729
Yong Shen64f102b2010-10-21 21:18:59 +08001730config CPU_FREQ_IMX
1731 tristate "CPUfreq driver for i.MX CPUs"
1732 depends on ARCH_MXC && CPU_FREQ
1733 help
1734 This enables the CPUfreq driver for i.MX CPUs.
1735
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736config CPU_FREQ_SA1100
1737 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738
1739config CPU_FREQ_SA1110
1740 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001741
1742config CPU_FREQ_INTEGRATOR
1743 tristate "CPUfreq driver for ARM Integrator CPUs"
1744 depends on ARCH_INTEGRATOR && CPU_FREQ
1745 default y
1746 help
1747 This enables the CPUfreq driver for ARM Integrator CPUs.
1748
1749 For details, take a look at <file:Documentation/cpu-freq>.
1750
1751 If in doubt, say Y.
1752
Russell King9e2697f2007-12-14 13:30:14 +00001753config CPU_FREQ_PXA
1754 bool
1755 depends on CPU_FREQ && ARCH_PXA && PXA25x
1756 default y
1757 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1758
Mark Brownb3748dd2009-06-15 11:23:20 +01001759config CPU_FREQ_S3C64XX
1760 bool "CPUfreq support for Samsung S3C64XX CPUs"
1761 depends on CPU_FREQ && CPU_S3C6410
1762
Ben Dooks9d56c022009-07-30 23:23:25 +01001763config CPU_FREQ_S3C
1764 bool
1765 help
1766 Internal configuration node for common cpufreq on Samsung SoC
1767
1768config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001769 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001770 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1771 select CPU_FREQ_S3C
1772 help
1773 This enables the CPUfreq driver for the Samsung S3C24XX family
1774 of CPUs.
1775
1776 For details, take a look at <file:Documentation/cpu-freq>.
1777
1778 If in doubt, say N.
1779
1780config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001781 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001782 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1783 help
1784 Compile in support for changing the PLL frequency from the
1785 S3C24XX series CPUfreq driver. The PLL takes time to settle
1786 after a frequency change, so by default it is not enabled.
1787
1788 This also means that the PLL tables for the selected CPU(s) will
1789 be built which may increase the size of the kernel image.
1790
1791config CPU_FREQ_S3C24XX_DEBUG
1792 bool "Debug CPUfreq Samsung driver core"
1793 depends on CPU_FREQ_S3C24XX
1794 help
1795 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1796
1797config CPU_FREQ_S3C24XX_IODEBUG
1798 bool "Debug CPUfreq Samsung driver IO timing"
1799 depends on CPU_FREQ_S3C24XX
1800 help
1801 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1802
Ben Dookse6d197a2009-07-30 23:23:42 +01001803config CPU_FREQ_S3C24XX_DEBUGFS
1804 bool "Export debugfs for CPUFreq"
1805 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1806 help
1807 Export status information via debugfs.
1808
Linus Torvalds1da177e2005-04-16 15:20:36 -07001809endif
1810
Russell Kingac9d7ef2008-08-18 17:26:00 +01001811source "drivers/cpuidle/Kconfig"
1812
1813endmenu
1814
Linus Torvalds1da177e2005-04-16 15:20:36 -07001815menu "Floating point emulation"
1816
1817comment "At least one emulation must be selected"
1818
1819config FPE_NWFPE
1820 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001821 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001822 ---help---
1823 Say Y to include the NWFPE floating point emulator in the kernel.
1824 This is necessary to run most binaries. Linux does not currently
1825 support floating point hardware so you need to say Y here even if
1826 your machine has an FPA or floating point co-processor podule.
1827
1828 You may say N here if you are going to load the Acorn FPEmulator
1829 early in the bootup.
1830
1831config FPE_NWFPE_XP
1832 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001833 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834 help
1835 Say Y to include 80-bit support in the kernel floating-point
1836 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1837 Note that gcc does not generate 80-bit operations by default,
1838 so in most cases this option only enlarges the size of the
1839 floating point emulator without any good reason.
1840
1841 You almost surely want to say N here.
1842
1843config FPE_FASTFPE
1844 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001845 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001846 ---help---
1847 Say Y here to include the FAST floating point emulator in the kernel.
1848 This is an experimental much faster emulator which now also has full
1849 precision for the mantissa. It does not support any exceptions.
1850 It is very simple, and approximately 3-6 times faster than NWFPE.
1851
1852 It should be sufficient for most programs. It may be not suitable
1853 for scientific calculations, but you have to check this for yourself.
1854 If you do not feel you need a faster FP emulation you should better
1855 choose NWFPE.
1856
1857config VFP
1858 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001859 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001860 help
1861 Say Y to include VFP support code in the kernel. This is needed
1862 if your hardware includes a VFP unit.
1863
1864 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1865 release notes and additional status information.
1866
1867 Say N if your target does not have VFP hardware.
1868
Catalin Marinas25ebee02007-09-25 15:22:24 +01001869config VFPv3
1870 bool
1871 depends on VFP
1872 default y if CPU_V7
1873
Catalin Marinasb5872db2008-01-10 19:16:17 +01001874config NEON
1875 bool "Advanced SIMD (NEON) Extension support"
1876 depends on VFPv3 && CPU_V7
1877 help
1878 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1879 Extension.
1880
Linus Torvalds1da177e2005-04-16 15:20:36 -07001881endmenu
1882
1883menu "Userspace binary formats"
1884
1885source "fs/Kconfig.binfmt"
1886
1887config ARTHUR
1888 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001889 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001890 help
1891 Say Y here to include the kernel code necessary if you want to run
1892 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1893 experimental; if this sounds frightening, say N and sleep in peace.
1894 You can also say M here to compile this support as a module (which
1895 will be called arthur).
1896
1897endmenu
1898
1899menu "Power management options"
1900
Russell Kingeceab4a2005-11-15 11:31:41 +00001901source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001902
Johannes Bergf4cb5702007-12-08 02:14:00 +01001903config ARCH_SUSPEND_POSSIBLE
1904 def_bool y
1905
Linus Torvalds1da177e2005-04-16 15:20:36 -07001906endmenu
1907
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001908source "net/Kconfig"
1909
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001910source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911
1912source "fs/Kconfig"
1913
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914source "arch/arm/Kconfig.debug"
1915
1916source "security/Kconfig"
1917
1918source "crypto/Kconfig"
1919
1920source "lib/Kconfig"