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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
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100181config ARM_L1_CACHE_SHIFT_6
182 bool
183 help
184 Setting ARM L1 cache line size to 64 Bytes.
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194source "init/Kconfig"
195
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700196source "kernel/Kconfig.freezer"
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198menu "System Type"
199
Hyok S. Choi3c427972009-07-24 12:35:00 +0100200config MMU
201 bool "MMU-based Paged Memory Management Support"
202 default y
203 help
204 Select if you want MMU-based virtualised addressing space
205 support by paged memory management. If unsure, say 'Y'.
206
Russell Kingccf50e22010-03-15 19:03:06 +0000207#
208# The "ARM system type" choice list is ordered alphabetically by option
209# text. Please add new entries in the option alphabetic order.
210#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211choice
212 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000213 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100215config ARCH_AAEC2000
216 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000217 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100218 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700219 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000220 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100221 help
222 This enables support for systems based on the Agilent AAEC-2000
223
224config ARCH_INTEGRATOR
225 bool "ARM Ltd. Integrator family"
226 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100227 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100228 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000229 select ICST
Russell King13edd862010-01-15 21:49:23 +0000230 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000231 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 help
233 Support for ARM's Integrator platform.
234
235config ARCH_REALVIEW
236 bool "ARM Ltd. RealView family"
237 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100238 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000239 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000240 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100241 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100242 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000243 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000244 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000245 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100246 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100247 help
248 This enables support for ARM Ltd RealView boards.
249
250config ARCH_VERSATILE
251 bool "ARM Ltd. Versatile family"
252 select ARM_AMBA
253 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100254 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000255 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000256 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100257 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100258 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000259 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000260 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000261 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100262 help
263 This enables support for ARM Ltd Versatile board.
264
Russell Kingceade892010-02-11 21:44:53 +0000265config ARCH_VEXPRESS
266 bool "ARM Ltd. Versatile Express family"
267 select ARCH_WANT_OPTIONAL_GPIOLIB
268 select ARM_AMBA
269 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100270 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000271 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000272 select HAVE_CLK
Russell King0af85dd2010-12-15 21:58:50 +0000273 select HAVE_SCHED_CLOCK
Nick Bowler95c34f82011-01-21 15:51:06 +0100274 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000275 select ICST
276 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000277 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000278 help
279 This enables support for the ARM Ltd Versatile Express boards.
280
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100281config ARCH_AT91
282 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100283 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700284 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100285 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100286 This enables support for systems based on the Atmel AT91RM9200,
287 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100288
Russell Kingccf50e22010-03-15 19:03:06 +0000289config ARCH_BCMRING
290 bool "Broadcom BCMRING"
291 depends on MMU
292 select CPU_V6
293 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100294 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000295 select GENERIC_CLOCKEVENTS
296 select ARCH_WANT_OPTIONAL_GPIOLIB
297 help
298 Support for Broadcom's BCMRing platform.
299
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100301 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000302 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000303 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000304 help
305 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300307config ARCH_CNS3XXX
308 bool "Cavium Networks CNS3XXX family"
309 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300310 select GENERIC_CLOCKEVENTS
311 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100312 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400313 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300314 help
315 Support for Cavium Networks CNS3XXX platform.
316
Russell King788c9702009-04-26 14:21:59 +0100317config ARCH_GEMINI
318 bool "Cortina Systems Gemini"
319 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100320 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000321 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100322 help
323 Support for the Cortina Systems Gemini family SoCs
324
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325config ARCH_EBSA110
326 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000327 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100328 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000329 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000330 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331 help
332 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000333 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334 Ethernet interface, two PCMCIA sockets, two serial ports and a
335 parallel port.
336
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000337config ARCH_EP93XX
338 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000339 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000340 select ARM_AMBA
341 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100342 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700343 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100344 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000345 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000346 help
347 This enables support for the Cirrus EP93xx series of CPUs.
348
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349config ARCH_FOOTBRIDGE
350 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000351 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000353 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000354 help
355 Support for systems based on the DC21285 companion chip
356 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357
Russell King788c9702009-04-26 14:21:59 +0100358config ARCH_MXC
359 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100360 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100361 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100362 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100363 help
364 Support for Freescale MXC/iMX-based family of processors
365
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800366config ARCH_MXS
367 bool "Freescale MXS-based"
368 select GENERIC_CLOCKEVENTS
369 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100370 select CLKDEV_LOOKUP
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800371 help
372 Support for Freescale MXS-based family of processors
373
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100374config ARCH_STMP3XXX
375 bool "Freescale STMP3xxx"
376 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100377 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100378 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100379 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100380 select USB_ARCH_HAS_EHCI
381 help
382 Support for systems based on the Freescale 3xxx CPUs.
383
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100384config ARCH_NETX
385 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000386 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100387 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100388 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000389 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100390 This enables support for systems based on the Hilscher NetX Soc
391
392config ARCH_H720X
393 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000394 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100395 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000396 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100397 help
398 This enables support for systems based on the Hynix HMS720x
399
Russell King3b938be2007-05-12 11:25:44 +0100400config ARCH_IOP13XX
401 bool "IOP13xx-based"
402 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000403 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100404 select PLAT_IOP
405 select PCI
406 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100407 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100408 help
409 Support for Intel's IOP13XX (XScale) family of processors.
410
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100411config ARCH_IOP32X
412 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100413 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000414 select CPU_XSCALE
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100415 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100416 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100417 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000418 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100419 Support for Intel's 80219 and IOP32X (XScale) family of
420 processors.
421
422config ARCH_IOP33X
423 bool "IOP33x-based"
424 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000425 select CPU_XSCALE
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100426 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100427 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100428 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100429 help
430 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431
Russell King3b938be2007-05-12 11:25:44 +0100432config ARCH_IXP23XX
433 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100434 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000435 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100436 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000437 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100438 help
Russell King3b938be2007-05-12 11:25:44 +0100439 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440
441config ARCH_IXP2000
442 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100443 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000444 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100445 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000446 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000447 help
448 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
Russell King3b938be2007-05-12 11:25:44 +0100450config ARCH_IXP4XX
451 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100452 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000453 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100454 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100455 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000456 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100457 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100458 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100459 help
Russell King3b938be2007-05-12 11:25:44 +0100460 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100461
Saeed Bisharaedabd382009-08-06 15:12:43 +0300462config ARCH_DOVE
463 bool "Marvell Dove"
464 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300465 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300466 select GENERIC_CLOCKEVENTS
467 select PLAT_ORION
468 help
469 Support for the Marvell Dove SoC 88AP510
470
Saeed Bishara651c74c2008-06-22 22:45:06 +0200471config ARCH_KIRKWOOD
472 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000473 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200474 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700475 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200476 select GENERIC_CLOCKEVENTS
477 select PLAT_ORION
478 help
479 Support for the following Marvell Kirkwood series SoCs:
480 88F6180, 88F6192 and 88F6281.
481
Russell King788c9702009-04-26 14:21:59 +0100482config ARCH_LOKI
483 bool "Marvell Loki (88RC8480)"
484 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100485 select GENERIC_CLOCKEVENTS
486 select PLAT_ORION
487 help
488 Support for the Marvell Loki (88RC8480) SoC.
489
Kevin Wells40805942010-07-27 08:49:04 -0700490config ARCH_LPC32XX
491 bool "NXP LPC32XX"
492 select CPU_ARM926T
493 select ARCH_REQUIRE_GPIOLIB
494 select HAVE_IDE
495 select ARM_AMBA
496 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100497 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700498 select GENERIC_TIME
499 select GENERIC_CLOCKEVENTS
500 help
501 Support for the NXP LPC32XX family of processors
502
Russell King788c9702009-04-26 14:21:59 +0100503config ARCH_MV78XX0
504 bool "Marvell MV78xx0"
505 select CPU_FEROCEON
506 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700507 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100508 select GENERIC_CLOCKEVENTS
509 select PLAT_ORION
510 help
511 Support for the following Marvell MV78xx0 series SoCs:
512 MV781x0, MV782x0.
513
514config ARCH_ORION5X
515 bool "Marvell Orion"
516 depends on MMU
517 select CPU_FEROCEON
518 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700519 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100520 select GENERIC_CLOCKEVENTS
521 select PLAT_ORION
522 help
523 Support for the following Marvell Orion 5x series SoCs:
524 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
525 Orion-2 (5281), Orion-1-90 (6183).
526
527config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500528 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100529 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100530 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100531 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100532 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000533 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100534 select TICK_ONESHOT
535 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400536 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100537 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500538 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100539
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100540config ARCH_KS8695
541 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000542 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100543 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000544 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100545 help
546 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
547 System-on-Chip devices.
548
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100549config ARCH_NS9XXX
550 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000551 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100552 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100553 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700554 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100555 help
556 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
557 System.
558
559 <http://www.digi.com/products/microprocessors/index.jsp>
560
Russell King788c9702009-04-26 14:21:59 +0100561config ARCH_W90X900
562 bool "Nuvoton W90X900 CPU"
563 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100564 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100565 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100566 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200567 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100568 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
569 At present, the w90x900 has been renamed nuc900, regarding
570 the ARM series product line, you can login the following
571 link address to know more.
572
573 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
574 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400575
wanzongshuna62e9032009-12-31 15:06:05 +0100576config ARCH_NUC93X
577 bool "Nuvoton NUC93X CPU"
578 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100579 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100580 help
581 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
582 low-power and high performance MPEG-4/JPEG multimedia controller chip.
583
Erik Gillingc5f80062010-01-21 16:53:02 -0800584config ARCH_TEGRA
585 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000586 select CLKDEV_LOOKUP
Erik Gillingc5f80062010-01-21 16:53:02 -0800587 select GENERIC_TIME
588 select GENERIC_CLOCKEVENTS
589 select GENERIC_GPIO
590 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000591 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800592 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700593 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800594 help
595 This enables support for NVIDIA Tegra based systems (Tegra APX,
596 Tegra 6xx and Tegra 2 series).
597
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100598config ARCH_PNX4008
599 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000600 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100601 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000602 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100603 help
604 This enables support for Philips PNX4008 mobile platform.
605
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700607 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100608 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500609 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100610 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100611 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700612 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100613 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000614 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000615 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800616 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800617 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000618 help
eric miao2c8086a2007-09-11 19:13:17 -0700619 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620
Russell King788c9702009-04-26 14:21:59 +0100621config ARCH_MSM
622 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500623 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800624 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700625 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800626 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800627 Support for Qualcomm MSM/QSD based systems. This runs on the
628 apps processor of the MSM/QSD and depends on a shared memory
629 interface to the modem processor which runs the baseband
630 stack and controls some vital subsystems
631 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800632
Magnus Dammc793c1b2010-02-05 11:14:49 +0000633config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900634 bool "Renesas SH-Mobile / R-Mobile"
635 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900636 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900637 select GENERIC_CLOCKEVENTS
638 select NO_IOPORT
639 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000640 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000641 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900642 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000643
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644config ARCH_RPC
645 bool "RiscPC"
646 select ARCH_ACORN
647 select FIQ
648 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100649 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100650 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000651 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000652 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100653 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000654 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655 help
656 On the Acorn Risc-PC, Linux can support the internal IDE disk and
657 CD-ROM interface, serial and parallel port, and the floppy drive.
658
659config ARCH_SA1100
660 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000661 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100662 select ISA
Russell King05944d72006-11-30 20:43:51 +0000663 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500664 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100665 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000666 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100667 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700668 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000669 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100670 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700671 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000672 help
673 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674
675config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900676 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800677 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100678 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700679 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000680 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900681 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682 help
683 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
684 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000685 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686
Ben Dooks63b1f512010-04-30 16:32:26 +0900687 Note, the S3C2416 and the S3C2450 are so close that they even share
688 the same SoC ID code. This means that there is no seperate machine
689 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
690
Ben Dooksa08ab632008-10-21 14:06:39 +0100691config ARCH_S3C64XX
692 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000693 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900694 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900695 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100696 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900697 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000698 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100699 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900700 select ARCH_REQUIRE_GPIOLIB
701 select SAMSUNG_CLKSRC
702 select SAMSUNG_IRQ_VIC_TIMER
703 select SAMSUNG_IRQ_UART
704 select S3C_GPIO_TRACK
705 select S3C_GPIO_PULL_UPDOWN
706 select S3C_GPIO_CFG_S3C24XX
707 select S3C_GPIO_CFG_S3C64XX
708 select S3C_DEV_NAND
709 select USB_ARCH_HAS_OHCI
710 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900711 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900712 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100713 help
714 Samsung S3C64XX series based systems
715
Kukjin Kim49b7a492010-09-07 15:47:18 +0900716config ARCH_S5P64X0
717 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900718 select CPU_V6
719 select GENERIC_GPIO
720 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900721 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900722 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900723 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900724 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900725 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900726 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
727 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900728
Kukjin Kim550db7f2010-01-29 10:19:26 +0900729config ARCH_S5P6442
730 bool "Samsung S5P6442"
731 select CPU_V6
732 select GENERIC_GPIO
733 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900734 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900735 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900736 help
737 Samsung S5P6442 CPU based systems
738
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200739config ARCH_S5PC100
740 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900741 select GENERIC_GPIO
742 select HAVE_CLK
743 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100744 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900745 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900746 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900747 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900748 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900749 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200750 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900751
Kukjin Kim170f4e42010-02-24 16:40:44 +0900752config ARCH_S5PV210
753 bool "Samsung S5PV210/S5PC110"
754 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900755 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900756 select GENERIC_GPIO
757 select HAVE_CLK
758 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900759 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900760 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900761 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900762 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900763 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900764 help
765 Samsung S5PV210/S5PC110 series based systems
766
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900767config ARCH_S5PV310
768 bool "Samsung S5PV310/S5PC210"
769 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900770 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900771 select GENERIC_GPIO
772 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900773 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900774 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900775 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900776 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900777 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900778 help
779 Samsung S5PV310 series based systems
780
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781config ARCH_SHARK
782 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000783 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100784 select ISA
785 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100786 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100787 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000788 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000789 help
790 Support for the StrongARM based Digital DNARD machine, also known
791 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700792
Hans J. Koch83ef3332010-09-17 18:13:56 +0200793config ARCH_TCC_926
794 bool "Telechips TCC ARM926-based systems"
795 select CPU_ARM926T
796 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100797 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200798 select GENERIC_CLOCKEVENTS
799 help
800 Support for Telechips TCC ARM926-based systems.
801
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802config ARCH_LH7A40X
803 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000804 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100805 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000806 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807 help
808 Say Y here for systems based on one of the Sharp LH7A40X
809 System on a Chip processors. These CPUs include an ARM922T
810 core with a wide array of integrated devices for
811 hand-held and low-power applications.
812
Linus Walleijd98aac72009-04-27 10:21:46 +0100813config ARCH_U300
814 bool "ST-Ericsson U300 Series"
815 depends on MMU
816 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000817 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100818 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100819 select ARM_AMBA
820 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100821 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100822 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100823 select GENERIC_GPIO
824 help
825 Support for ST-Ericsson U300 series mobile platforms.
826
Russell Kingccf50e22010-03-15 19:03:06 +0000827config ARCH_U8500
828 bool "ST-Ericsson U8500 Series"
829 select CPU_V7
830 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000831 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100832 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100833 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100834 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000835 help
836 Support for ST-Ericsson's Ux500 architecture
837
838config ARCH_NOMADIK
839 bool "STMicroelectronics Nomadik"
840 select ARM_AMBA
841 select ARM_VIC
842 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100843 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000844 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000845 select ARCH_REQUIRE_GPIOLIB
846 help
847 Support for the Nomadik platform by ST-Ericsson
848
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100849config ARCH_DAVINCI
850 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100851 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700852 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100853 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700854 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100855 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700856 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530857 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100858 help
859 Support for TI's DaVinci platform.
860
Russell King3b938be2007-05-12 11:25:44 +0100861config ARCH_OMAP
862 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700863 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700864 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100865 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700866 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000867 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800868 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100869 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200870 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100871
viresh kumarcee37e52010-04-01 12:31:05 +0100872config PLAT_SPEAR
873 bool "ST SPEAr"
874 select ARM_AMBA
875 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100876 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100877 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100878 select HAVE_CLK
879 help
880 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
881
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882endchoice
883
Russell Kingccf50e22010-03-15 19:03:06 +0000884#
885# This is sorted alphabetically by mach-* pathname. However, plat-*
886# Kconfigs may be included either alphabetically (according to the
887# plat- suffix) or along side the corresponding mach-* source.
888#
Russell King95b8f202010-01-14 11:43:54 +0000889source "arch/arm/mach-aaec2000/Kconfig"
890
891source "arch/arm/mach-at91/Kconfig"
892
893source "arch/arm/mach-bcmring/Kconfig"
894
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895source "arch/arm/mach-clps711x/Kconfig"
896
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300897source "arch/arm/mach-cns3xxx/Kconfig"
898
Russell King95b8f202010-01-14 11:43:54 +0000899source "arch/arm/mach-davinci/Kconfig"
900
901source "arch/arm/mach-dove/Kconfig"
902
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000903source "arch/arm/mach-ep93xx/Kconfig"
904
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905source "arch/arm/mach-footbridge/Kconfig"
906
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200907source "arch/arm/mach-gemini/Kconfig"
908
Russell King95b8f202010-01-14 11:43:54 +0000909source "arch/arm/mach-h720x/Kconfig"
910
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911source "arch/arm/mach-integrator/Kconfig"
912
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100913source "arch/arm/mach-iop32x/Kconfig"
914
915source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916
Dan Williams285f5fa2006-12-07 02:59:39 +0100917source "arch/arm/mach-iop13xx/Kconfig"
918
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919source "arch/arm/mach-ixp4xx/Kconfig"
920
921source "arch/arm/mach-ixp2000/Kconfig"
922
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100923source "arch/arm/mach-ixp23xx/Kconfig"
924
Russell King95b8f202010-01-14 11:43:54 +0000925source "arch/arm/mach-kirkwood/Kconfig"
926
927source "arch/arm/mach-ks8695/Kconfig"
928
929source "arch/arm/mach-lh7a40x/Kconfig"
930
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200931source "arch/arm/mach-loki/Kconfig"
932
Kevin Wells40805942010-07-27 08:49:04 -0700933source "arch/arm/mach-lpc32xx/Kconfig"
934
Russell King95b8f202010-01-14 11:43:54 +0000935source "arch/arm/mach-msm/Kconfig"
936
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200937source "arch/arm/mach-mv78xx0/Kconfig"
938
Russell King95b8f202010-01-14 11:43:54 +0000939source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800941source "arch/arm/mach-mxs/Kconfig"
942
Russell King95b8f202010-01-14 11:43:54 +0000943source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800944
Russell King95b8f202010-01-14 11:43:54 +0000945source "arch/arm/mach-nomadik/Kconfig"
946source "arch/arm/plat-nomadik/Kconfig"
947
948source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949
Russell Kingd91a89102010-02-04 18:13:17 +0000950source "arch/arm/mach-nuc93x/Kconfig"
951
Tony Lindgrend48af152005-07-10 19:58:17 +0100952source "arch/arm/plat-omap/Kconfig"
953
954source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955
Tony Lindgren1dbae812005-11-10 14:26:51 +0000956source "arch/arm/mach-omap2/Kconfig"
957
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400958source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400959
Russell King95b8f202010-01-14 11:43:54 +0000960source "arch/arm/mach-pxa/Kconfig"
961source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962
Russell King95b8f202010-01-14 11:43:54 +0000963source "arch/arm/mach-mmp/Kconfig"
964
965source "arch/arm/mach-realview/Kconfig"
966
967source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300968
Ben Dookscf383672009-11-10 00:14:58 +0000969source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100970source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900971source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100972
viresh kumarcee37e52010-04-01 12:31:05 +0100973source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100974
Hans J. Koch83ef3332010-09-17 18:13:56 +0200975source "arch/arm/plat-tcc/Kconfig"
976
Ben Dooksa21765a2007-02-11 18:31:01 +0100977if ARCH_S3C2410
978source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100980source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900981source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100982source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100983source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100984endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700985
Ben Dooksa08ab632008-10-21 14:06:39 +0100986if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900987source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100988endif
989
Kukjin Kim49b7a492010-09-07 15:47:18 +0900990source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900991
Kukjin Kim550db7f2010-01-29 10:19:26 +0900992source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100993
Byungho Min5a7652f2009-06-23 21:39:42 +0900994source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900995
Kukjin Kim170f4e42010-02-24 16:40:44 +0900996source "arch/arm/mach-s5pv210/Kconfig"
997
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900998source "arch/arm/mach-s5pv310/Kconfig"
999
Russell King882d01f2010-03-02 23:40:15 +00001000source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001
Russell King882d01f2010-03-02 23:40:15 +00001002source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c84c2007-11-26 04:12:13 -08001003
Erik Gillingc5f80062010-01-21 16:53:02 -08001004source "arch/arm/mach-tegra/Kconfig"
1005
Russell King95b8f202010-01-14 11:43:54 +00001006source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001007
Russell King95b8f202010-01-14 11:43:54 +00001008source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009
1010source "arch/arm/mach-versatile/Kconfig"
1011
Russell Kingceade892010-02-11 21:44:53 +00001012source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001013source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001014
wanzongshun7ec80dd2008-12-03 03:55:38 +01001015source "arch/arm/mach-w90x900/Kconfig"
1016
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017# Definitions to make life easier
1018config ARCH_ACORN
1019 bool
1020
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +01001021config PLAT_IOP
1022 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001023 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001024 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +01001025
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001026config PLAT_ORION
1027 bool
Russell Kingf06a1622010-12-15 21:55:06 +00001028 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001029
Eric Miaobd5ce432009-01-20 12:06:01 +08001030config PLAT_PXA
1031 bool
1032
Russell Kingf4b8b312010-01-14 12:48:06 +00001033config PLAT_VERSATILE
1034 bool
1035
Russell Kinge3887712010-01-14 13:30:16 +00001036config ARM_TIMER_SP804
1037 bool
1038
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039source arch/arm/mm/Kconfig
1040
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001041config IWMMXT
1042 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001043 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1044 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001045 help
1046 Enable support for iWMMXt context switching at run time if
1047 running on a CPU that supports it.
1048
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1050config XSCALE_PMU
1051 bool
1052 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1053 default y
1054
Jamie Iles0f4f0672010-02-02 20:23:15 +01001055config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001056 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1057 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001058 default y
1059 bool
1060
eric miao52108642010-12-13 09:42:34 +01001061config MULTI_IRQ_HANDLER
1062 bool
1063 help
1064 Allow each machine to specify it's own IRQ handler at run time.
1065
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001066if !MMU
1067source "arch/arm/Kconfig-nommu"
1068endif
1069
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001070config ARM_ERRATA_411920
1071 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001072 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001073 help
1074 Invalidation of the Instruction Cache operation can
1075 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1076 It does not affect the MPCore. This option enables the ARM Ltd.
1077 recommended workaround.
1078
Catalin Marinas7ce236fc2009-04-30 17:06:09 +01001079config ARM_ERRATA_430973
1080 bool "ARM errata: Stale prediction on replaced interworking branch"
1081 depends on CPU_V7
1082 help
1083 This option enables the workaround for the 430973 Cortex-A8
1084 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1085 interworking branch is replaced with another code sequence at the
1086 same virtual address, whether due to self-modifying code or virtual
1087 to physical address re-mapping, Cortex-A8 does not recover from the
1088 stale interworking branch prediction. This results in Cortex-A8
1089 executing the new code sequence in the incorrect ARM or Thumb state.
1090 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1091 and also flushes the branch target cache at every context switch.
1092 Note that setting specific bits in the ACTLR register may not be
1093 available in non-secure mode.
1094
Catalin Marinas855c5512009-04-30 17:06:15 +01001095config ARM_ERRATA_458693
1096 bool "ARM errata: Processor deadlock when a false hazard is created"
1097 depends on CPU_V7
1098 help
1099 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1100 erratum. For very specific sequences of memory operations, it is
1101 possible for a hazard condition intended for a cache line to instead
1102 be incorrectly associated with a different cache line. This false
1103 hazard might then cause a processor deadlock. The workaround enables
1104 the L1 caching of the NEON accesses and disables the PLD instruction
1105 in the ACTLR register. Note that setting specific bits in the ACTLR
1106 register may not be available in non-secure mode.
1107
Catalin Marinas0516e462009-04-30 17:06:20 +01001108config ARM_ERRATA_460075
1109 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1110 depends on CPU_V7
1111 help
1112 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1113 erratum. Any asynchronous access to the L2 cache may encounter a
1114 situation in which recent store transactions to the L2 cache are lost
1115 and overwritten with stale memory contents from external memory. The
1116 workaround disables the write-allocate mode for the L2 cache via the
1117 ACTLR register. Note that setting specific bits in the ACTLR register
1118 may not be available in non-secure mode.
1119
Will Deacon9f050272010-09-14 09:51:43 +01001120config ARM_ERRATA_742230
1121 bool "ARM errata: DMB operation may be faulty"
1122 depends on CPU_V7 && SMP
1123 help
1124 This option enables the workaround for the 742230 Cortex-A9
1125 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1126 between two write operations may not ensure the correct visibility
1127 ordering of the two writes. This workaround sets a specific bit in
1128 the diagnostic register of the Cortex-A9 which causes the DMB
1129 instruction to behave as a DSB, ensuring the correct behaviour of
1130 the two writes.
1131
Will Deacona672e992010-09-14 09:53:02 +01001132config ARM_ERRATA_742231
1133 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1134 depends on CPU_V7 && SMP
1135 help
1136 This option enables the workaround for the 742231 Cortex-A9
1137 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1138 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1139 accessing some data located in the same cache line, may get corrupted
1140 data due to bad handling of the address hazard when the line gets
1141 replaced from one of the CPUs at the same time as another CPU is
1142 accessing it. This workaround sets specific bits in the diagnostic
1143 register of the Cortex-A9 which reduces the linefill issuing
1144 capabilities of the processor.
1145
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001146config PL310_ERRATA_588369
1147 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1148 depends on CACHE_L2X0 && ARCH_OMAP4
1149 help
1150 The PL310 L2 cache controller implements three types of Clean &
1151 Invalidate maintenance operations: by Physical Address
1152 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1153 They are architecturally defined to behave as the execution of a
1154 clean operation followed immediately by an invalidate operation,
1155 both performing to the same memory location. This functionality
1156 is not correctly implemented in PL310 as clean lines are not
1157 invalidated as a result of these operations. Note that this errata
1158 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001159
1160config ARM_ERRATA_720789
1161 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1162 depends on CPU_V7 && SMP
1163 help
1164 This option enables the workaround for the 720789 Cortex-A9 (prior to
1165 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1166 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1167 As a consequence of this erratum, some TLB entries which should be
1168 invalidated are not, resulting in an incoherency in the system page
1169 tables. The workaround changes the TLB flushing routines to invalidate
1170 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001171
1172config ARM_ERRATA_743622
1173 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1174 depends on CPU_V7
1175 help
1176 This option enables the workaround for the 743622 Cortex-A9
1177 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1178 optimisation in the Cortex-A9 Store Buffer may lead to data
1179 corruption. This workaround sets a specific bit in the diagnostic
1180 register of the Cortex-A9 which disables the Store Buffer
1181 optimisation, preventing the defect from occurring. This has no
1182 visible impact on the overall performance or power consumption of the
1183 processor.
1184
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185endmenu
1186
1187source "arch/arm/common/Kconfig"
1188
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189menu "Bus support"
1190
1191config ARM_AMBA
1192 bool
1193
1194config ISA
1195 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196 help
1197 Find out whether you have ISA slots on your motherboard. ISA is the
1198 name of a bus system, i.e. the way the CPU talks to the other stuff
1199 inside your box. Other bus systems are PCI, EISA, MicroChannel
1200 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1201 newer boards don't support it. If you have ISA, say Y, otherwise N.
1202
Russell King065909b2006-01-04 15:44:16 +00001203# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001204config ISA_DMA
1205 bool
Russell King065909b2006-01-04 15:44:16 +00001206 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001207
Russell King065909b2006-01-04 15:44:16 +00001208# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001209config ISA_DMA_API
1210 bool
Al Viro5cae8412005-05-04 05:39:22 +01001211
Linus Torvalds1da177e2005-04-16 15:20:36 -07001212config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001213 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001214 help
1215 Find out whether you have a PCI motherboard. PCI is the name of a
1216 bus system, i.e. the way the CPU talks to the other stuff inside
1217 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1218 VESA. If you have PCI, say Y, otherwise N.
1219
Anton Vorontsov52882172010-04-19 13:20:49 +01001220config PCI_DOMAINS
1221 bool
1222 depends on PCI
1223
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001224config PCI_NANOENGINE
1225 bool "BSE nanoEngine PCI support"
1226 depends on SA1100_NANOENGINE
1227 help
1228 Enable PCI on the BSE nanoEngine board.
1229
Matthew Wilcox36e23592007-07-10 10:54:40 -06001230config PCI_SYSCALL
1231 def_bool PCI
1232
Linus Torvalds1da177e2005-04-16 15:20:36 -07001233# Select the host bridge type
1234config PCI_HOST_VIA82C505
1235 bool
1236 depends on PCI && ARCH_SHARK
1237 default y
1238
Mike Rapoporta0113a92007-11-25 08:55:34 +01001239config PCI_HOST_ITE8152
1240 bool
1241 depends on PCI && MACH_ARMCORE
1242 default y
1243 select DMABOUNCE
1244
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245source "drivers/pci/Kconfig"
1246
1247source "drivers/pcmcia/Kconfig"
1248
1249endmenu
1250
1251menu "Kernel Features"
1252
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001253source "kernel/time/Kconfig"
1254
Linus Torvalds1da177e2005-04-16 15:20:36 -07001255config SMP
1256 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001257 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001258 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001259 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001260 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1261 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001262 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001263 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001264 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265 help
1266 This enables support for systems with more than one CPU. If you have
1267 a system with only one CPU, like most personal computers, say N. If
1268 you have a system with more than one CPU, say Y.
1269
1270 If you say N here, the kernel will run on single and multiprocessor
1271 machines, but will use only one CPU of a multiprocessor machine. If
1272 you say Y here, the kernel will run on many, but not all, single
1273 processor machines. On a single processor machine, the kernel will
1274 run faster if you say N here.
1275
Adrian Bunk03502fa2008-02-03 15:50:21 +02001276 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001277 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001278 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001279
1280 If you don't know what to do here, say N.
1281
Russell Kingf00ec482010-09-04 10:47:48 +01001282config SMP_ON_UP
1283 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1284 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001285 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001286 default y
1287 help
1288 SMP kernels contain instructions which fail on non-SMP processors.
1289 Enabling this option allows the kernel to modify itself to make
1290 these instructions safe. Disabling it allows about 1K of space
1291 savings.
1292
1293 If you don't know what to do here, say Y.
1294
Russell Kinga8cbcd92009-05-16 11:51:14 +01001295config HAVE_ARM_SCU
1296 bool
1297 depends on SMP
1298 help
1299 This option enables support for the ARM system coherency unit
1300
Russell Kingf32f4ce2009-05-16 12:14:21 +01001301config HAVE_ARM_TWD
1302 bool
1303 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001304 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001305 help
1306 This options enables support for the ARM timer and watchdog unit
1307
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001308choice
1309 prompt "Memory split"
1310 default VMSPLIT_3G
1311 help
1312 Select the desired split between kernel and user memory.
1313
1314 If you are not absolutely sure what you are doing, leave this
1315 option alone!
1316
1317 config VMSPLIT_3G
1318 bool "3G/1G user/kernel split"
1319 config VMSPLIT_2G
1320 bool "2G/2G user/kernel split"
1321 config VMSPLIT_1G
1322 bool "1G/3G user/kernel split"
1323endchoice
1324
1325config PAGE_OFFSET
1326 hex
1327 default 0x40000000 if VMSPLIT_1G
1328 default 0x80000000 if VMSPLIT_2G
1329 default 0xC0000000
1330
Linus Torvalds1da177e2005-04-16 15:20:36 -07001331config NR_CPUS
1332 int "Maximum number of CPUs (2-32)"
1333 range 2 32
1334 depends on SMP
1335 default "4"
1336
Russell Kinga054a812005-11-02 22:24:33 +00001337config HOTPLUG_CPU
1338 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1339 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001340 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001341 help
1342 Say Y here to experiment with turning CPUs off and on. CPUs
1343 can be controlled through /sys/devices/system/cpu.
1344
Russell King37ee16a2005-11-08 19:08:05 +00001345config LOCAL_TIMERS
1346 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001347 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001348 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001349 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001350 help
1351 Enable support for local timers on SMP platforms, rather then the
1352 legacy IPI broadcast method. Local timers allows the system
1353 accounting to be spread across the timer interval, preventing a
1354 "thundering herd" at every timer tick.
1355
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001356source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357
Russell Kingf8065812006-03-02 22:41:59 +00001358config HZ
1359 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001360 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001361 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001362 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001363 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001364 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001365 default 100
1366
Catalin Marinas16c79652009-07-24 12:33:02 +01001367config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001368 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Dave Martin6e6fc992010-12-13 21:53:53 +01001369 depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001370 select AEABI
1371 select ARM_ASM_UNIFIED
1372 help
1373 By enabling this option, the kernel will be compiled in
1374 Thumb-2 mode. A compiler/assembler that understand the unified
1375 ARM-Thumb syntax is needed.
1376
1377 If unsure, say N.
1378
Catalin Marinas0becb082009-07-24 12:32:53 +01001379config ARM_ASM_UNIFIED
1380 bool
1381
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001382config AEABI
1383 bool "Use the ARM EABI to compile the kernel"
1384 help
1385 This option allows for the kernel to be compiled using the latest
1386 ARM ABI (aka EABI). This is only useful if you are using a user
1387 space environment that is also compiled with EABI.
1388
1389 Since there are major incompatibilities between the legacy ABI and
1390 EABI, especially with regard to structure member alignment, this
1391 option also changes the kernel syscall calling convention to
1392 disambiguate both ABIs and allow for backward compatibility support
1393 (selected with CONFIG_OABI_COMPAT).
1394
1395 To use this you need GCC version 4.0.0 or later.
1396
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001397config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001398 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001399 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001400 default y
1401 help
1402 This option preserves the old syscall interface along with the
1403 new (ARM EABI) one. It also provides a compatibility layer to
1404 intercept syscalls that have structure arguments which layout
1405 in memory differs between the legacy ABI and the new ARM EABI
1406 (only for non "thumb" binaries). This option adds a tiny
1407 overhead to all syscalls and produces a slightly larger kernel.
1408 If you know you'll be using only pure EABI user space then you
1409 can say N here. If this option is not selected and you attempt
1410 to execute a legacy ABI binary then the result will be
1411 UNPREDICTABLE (in fact it can be predicted that it won't work
1412 at all). If in doubt say Y.
1413
Mel Gormaneb335752009-05-13 17:34:48 +01001414config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001415 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001416
Russell King05944d72006-11-30 20:43:51 +00001417config ARCH_SPARSEMEM_ENABLE
1418 bool
1419
Russell King07a2f732008-10-01 21:39:58 +01001420config ARCH_SPARSEMEM_DEFAULT
1421 def_bool ARCH_SPARSEMEM_ENABLE
1422
Russell King05944d72006-11-30 20:43:51 +00001423config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001424 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001425
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001426config HIGHMEM
1427 bool "High Memory Support (EXPERIMENTAL)"
1428 depends on MMU && EXPERIMENTAL
1429 help
1430 The address space of ARM processors is only 4 Gigabytes large
1431 and it has to accommodate user address space, kernel address
1432 space as well as some memory mapped IO. That means that, if you
1433 have a large amount of physical memory and/or IO, not all of the
1434 memory can be "permanently mapped" by the kernel. The physical
1435 memory that is not permanently mapped is called "high memory".
1436
1437 Depending on the selected kernel/user memory split, minimum
1438 vmalloc space and actual amount of RAM, you may not need this
1439 option which should result in a slightly faster kernel.
1440
1441 If unsure, say n.
1442
Russell King65cec8e2009-08-17 20:02:06 +01001443config HIGHPTE
1444 bool "Allocate 2nd-level pagetables from highmem"
1445 depends on HIGHMEM
1446 depends on !OUTER_CACHE
1447
Jamie Iles1b8873a2010-02-02 20:25:44 +01001448config HW_PERF_EVENTS
1449 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001450 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001451 default y
1452 help
1453 Enable hardware performance counter support for perf events. If
1454 disabled, perf events will use software events only.
1455
Dave Hansen3f22ab22005-06-23 00:07:43 -07001456source "mm/Kconfig"
1457
Magnus Dammc1b2d972010-07-05 10:00:11 +01001458config FORCE_MAX_ZONEORDER
1459 int "Maximum zone order" if ARCH_SHMOBILE
1460 range 11 64 if ARCH_SHMOBILE
1461 default "9" if SA1111
1462 default "11"
1463 help
1464 The kernel memory allocator divides physically contiguous memory
1465 blocks into "zones", where each zone is a power of two number of
1466 pages. This option selects the largest power of two that the kernel
1467 keeps in the memory allocator. If you need to allocate very large
1468 blocks of physically contiguous memory, then you may need to
1469 increase this value.
1470
1471 This config option is actually maximum order plus one. For example,
1472 a value of 11 means that the largest free memory block is 2^10 pages.
1473
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474config LEDS
1475 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001476 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001477 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001478 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1479 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001480 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001481 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042fb2009-05-30 13:56:13 +01001482 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001483 help
1484 If you say Y here, the LEDs on your machine will be used
1485 to provide useful information about your current system status.
1486
1487 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1488 be able to select which LEDs are active using the options below. If
1489 you are compiling a kernel for the EBSA-110 or the LART however, the
1490 red LED will simply flash regularly to indicate that the system is
1491 still functional. It is safe to say Y here if you have a CATS
1492 system, but the driver will do nothing.
1493
1494config LEDS_TIMER
1495 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001496 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1497 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001499 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500 default y if ARCH_EBSA110
1501 help
1502 If you say Y here, one of the system LEDs (the green one on the
1503 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1504 will flash regularly to indicate that the system is still
1505 operational. This is mainly useful to kernel hackers who are
1506 debugging unstable kernels.
1507
1508 The LART uses the same LED for both Timer LED and CPU usage LED
1509 functions. You may choose to use both, but the Timer LED function
1510 will overrule the CPU usage LED.
1511
1512config LEDS_CPU
1513 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001514 !ARCH_OMAP) \
1515 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1516 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001517 depends on LEDS
1518 help
1519 If you say Y here, the red LED will be used to give a good real
1520 time indication of CPU usage, by lighting whenever the idle task
1521 is not currently executing.
1522
1523 The LART uses the same LED for both Timer LED and CPU usage LED
1524 functions. You may choose to use both, but the Timer LED function
1525 will overrule the CPU usage LED.
1526
1527config ALIGNMENT_TRAP
1528 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001529 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001530 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001531 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001532 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001533 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001534 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1535 address divisible by 4. On 32-bit ARM processors, these non-aligned
1536 fetch/store instructions will be emulated in software if you say
1537 here, which has a severe performance impact. This is necessary for
1538 correct operation of some network protocols. With an IP-only
1539 configuration it is safe to say N, otherwise say Y.
1540
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001541config UACCESS_WITH_MEMCPY
1542 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1543 depends on MMU && EXPERIMENTAL
1544 default y if CPU_FEROCEON
1545 help
1546 Implement faster copy_to_user and clear_user methods for CPU
1547 cores where a 8-word STM instruction give significantly higher
1548 memory write throughput than a sequence of individual 32bit stores.
1549
1550 A possible side effect is a slight increase in scheduling latency
1551 between threads sharing the same address space if they invoke
1552 such copy operations with large buffers.
1553
1554 However, if the CPU data cache is using a write-allocate mode,
1555 this option is unlikely to provide any performance gain.
1556
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001557config SECCOMP
1558 bool
1559 prompt "Enable seccomp to safely compute untrusted bytecode"
1560 ---help---
1561 This kernel feature is useful for number crunching applications
1562 that may need to compute untrusted bytecode during their
1563 execution. By using pipes or other transports made available to
1564 the process as file descriptors supporting the read/write
1565 syscalls, it's possible to isolate those applications in
1566 their own address space using seccomp. Once seccomp is
1567 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1568 and the task is only allowed to execute a few safe syscalls
1569 defined by each seccomp mode.
1570
Nicolas Pitrec743f382010-05-24 23:55:42 -04001571config CC_STACKPROTECTOR
1572 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001573 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001574 help
1575 This option turns on the -fstack-protector GCC feature. This
1576 feature puts, at the beginning of functions, a canary value on
1577 the stack just before the return address, and validates
1578 the value just before actually returning. Stack based buffer
1579 overflows (that need to overwrite this return address) now also
1580 overwrite the canary, which gets detected and the attack is then
1581 neutralized via a kernel panic.
1582 This feature requires gcc version 4.2 or above.
1583
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001584config DEPRECATED_PARAM_STRUCT
1585 bool "Provide old way to pass kernel parameters"
1586 help
1587 This was deprecated in 2001 and announced to live on for 5 years.
1588 Some old boot loaders still use this way.
1589
Linus Torvalds1da177e2005-04-16 15:20:36 -07001590endmenu
1591
1592menu "Boot options"
1593
1594# Compressed boot loader in ROM. Yes, we really want to ask about
1595# TEXT and BSS so we preserve their values in the config files.
1596config ZBOOT_ROM_TEXT
1597 hex "Compressed ROM boot loader base address"
1598 default "0"
1599 help
1600 The physical address at which the ROM-able zImage is to be
1601 placed in the target. Platforms which normally make use of
1602 ROM-able zImage formats normally set this to a suitable
1603 value in their defconfig file.
1604
1605 If ZBOOT_ROM is not enabled, this has no effect.
1606
1607config ZBOOT_ROM_BSS
1608 hex "Compressed ROM boot loader BSS address"
1609 default "0"
1610 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001611 The base address of an area of read/write memory in the target
1612 for the ROM-able zImage which must be available while the
1613 decompressor is running. It must be large enough to hold the
1614 entire decompressed kernel plus an additional 128 KiB.
1615 Platforms which normally make use of ROM-able zImage formats
1616 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001617
1618 If ZBOOT_ROM is not enabled, this has no effect.
1619
1620config ZBOOT_ROM
1621 bool "Compressed boot loader in ROM/flash"
1622 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1623 help
1624 Say Y here if you intend to execute your compressed kernel image
1625 (zImage) directly from ROM or flash. If unsure, say N.
1626
1627config CMDLINE
1628 string "Default kernel command string"
1629 default ""
1630 help
1631 On some architectures (EBSA110 and CATS), there is currently no way
1632 for the boot loader to pass arguments to the kernel. For these
1633 architectures, you should supply some command-line options at build
1634 time by entering them here. As a minimum, you should specify the
1635 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1636
Alexander Holler92d20402010-02-16 19:04:53 +01001637config CMDLINE_FORCE
1638 bool "Always use the default kernel command string"
1639 depends on CMDLINE != ""
1640 help
1641 Always use the default kernel command string, even if the boot
1642 loader passes other arguments to the kernel.
1643 This is useful if you cannot or don't want to change the
1644 command-line options your boot loader passes to the kernel.
1645
1646 If unsure, say N.
1647
Linus Torvalds1da177e2005-04-16 15:20:36 -07001648config XIP_KERNEL
1649 bool "Kernel Execute-In-Place from ROM"
1650 depends on !ZBOOT_ROM
1651 help
1652 Execute-In-Place allows the kernel to run from non-volatile storage
1653 directly addressable by the CPU, such as NOR flash. This saves RAM
1654 space since the text section of the kernel is not loaded from flash
1655 to RAM. Read-write sections, such as the data section and stack,
1656 are still copied to RAM. The XIP kernel is not compressed since
1657 it has to run directly from flash, so it will take more space to
1658 store it. The flash address used to link the kernel object files,
1659 and for storing it, is configuration dependent. Therefore, if you
1660 say Y here, you must know the proper physical address where to
1661 store the kernel image depending on your own flash memory usage.
1662
1663 Also note that the make target becomes "make xipImage" rather than
1664 "make zImage" or "make Image". The final kernel binary to put in
1665 ROM memory will be arch/arm/boot/xipImage.
1666
1667 If unsure, say N.
1668
1669config XIP_PHYS_ADDR
1670 hex "XIP Kernel Physical Location"
1671 depends on XIP_KERNEL
1672 default "0x00080000"
1673 help
1674 This is the physical address in your flash memory the kernel will
1675 be linked for and stored to. This address is dependent on your
1676 own flash usage.
1677
Richard Purdiec587e4a2007-02-06 21:29:00 +01001678config KEXEC
1679 bool "Kexec system call (EXPERIMENTAL)"
1680 depends on EXPERIMENTAL
1681 help
1682 kexec is a system call that implements the ability to shutdown your
1683 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001684 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001685 you can start any kernel with it, not just Linux.
1686
1687 It is an ongoing process to be certain the hardware in a machine
1688 is properly shutdown, so do not be surprised if this code does not
1689 initially work for you. It may help to enable device hotplugging
1690 support.
1691
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001692config ATAGS_PROC
1693 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001694 depends on KEXEC
1695 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001696 help
1697 Should the atags used to boot the kernel be exported in an "atags"
1698 file in procfs. Useful with kexec.
1699
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001700config CRASH_DUMP
1701 bool "Build kdump crash kernel (EXPERIMENTAL)"
1702 depends on EXPERIMENTAL
1703 help
1704 Generate crash dump after being started by kexec. This should
1705 be normally only set in special crash dump kernels which are
1706 loaded in the main kernel with kexec-tools into a specially
1707 reserved region and then later executed after a crash by
1708 kdump/kexec. The crash dump kernel must be compiled to a
1709 memory address not used by the main kernel
1710
1711 For more details see Documentation/kdump/kdump.txt
1712
Eric Miaoe69edc792010-07-05 15:56:50 +02001713config AUTO_ZRELADDR
1714 bool "Auto calculation of the decompressed kernel image address"
1715 depends on !ZBOOT_ROM && !ARCH_U300
1716 help
1717 ZRELADDR is the physical address where the decompressed kernel
1718 image will be placed. If AUTO_ZRELADDR is selected, the address
1719 will be determined at run-time by masking the current IP with
1720 0xf8000000. This assumes the zImage being placed in the first 128MB
1721 from start of memory.
1722
Linus Torvalds1da177e2005-04-16 15:20:36 -07001723endmenu
1724
Russell Kingac9d7ef2008-08-18 17:26:00 +01001725menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001726
Ben Dooks89c52ed2009-07-30 23:23:24 +01001727if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001728
1729source "drivers/cpufreq/Kconfig"
1730
Yong Shen64f102b2010-10-21 21:18:59 +08001731config CPU_FREQ_IMX
1732 tristate "CPUfreq driver for i.MX CPUs"
1733 depends on ARCH_MXC && CPU_FREQ
1734 help
1735 This enables the CPUfreq driver for i.MX CPUs.
1736
Linus Torvalds1da177e2005-04-16 15:20:36 -07001737config CPU_FREQ_SA1100
1738 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001739
1740config CPU_FREQ_SA1110
1741 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001742
1743config CPU_FREQ_INTEGRATOR
1744 tristate "CPUfreq driver for ARM Integrator CPUs"
1745 depends on ARCH_INTEGRATOR && CPU_FREQ
1746 default y
1747 help
1748 This enables the CPUfreq driver for ARM Integrator CPUs.
1749
1750 For details, take a look at <file:Documentation/cpu-freq>.
1751
1752 If in doubt, say Y.
1753
Russell King9e2697f2007-12-14 13:30:14 +00001754config CPU_FREQ_PXA
1755 bool
1756 depends on CPU_FREQ && ARCH_PXA && PXA25x
1757 default y
1758 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1759
Mark Brownb3748dd2009-06-15 11:23:20 +01001760config CPU_FREQ_S3C64XX
1761 bool "CPUfreq support for Samsung S3C64XX CPUs"
1762 depends on CPU_FREQ && CPU_S3C6410
1763
Ben Dooks9d56c022009-07-30 23:23:25 +01001764config CPU_FREQ_S3C
1765 bool
1766 help
1767 Internal configuration node for common cpufreq on Samsung SoC
1768
1769config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001770 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001771 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1772 select CPU_FREQ_S3C
1773 help
1774 This enables the CPUfreq driver for the Samsung S3C24XX family
1775 of CPUs.
1776
1777 For details, take a look at <file:Documentation/cpu-freq>.
1778
1779 If in doubt, say N.
1780
1781config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001782 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001783 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1784 help
1785 Compile in support for changing the PLL frequency from the
1786 S3C24XX series CPUfreq driver. The PLL takes time to settle
1787 after a frequency change, so by default it is not enabled.
1788
1789 This also means that the PLL tables for the selected CPU(s) will
1790 be built which may increase the size of the kernel image.
1791
1792config CPU_FREQ_S3C24XX_DEBUG
1793 bool "Debug CPUfreq Samsung driver core"
1794 depends on CPU_FREQ_S3C24XX
1795 help
1796 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1797
1798config CPU_FREQ_S3C24XX_IODEBUG
1799 bool "Debug CPUfreq Samsung driver IO timing"
1800 depends on CPU_FREQ_S3C24XX
1801 help
1802 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1803
Ben Dookse6d197a2009-07-30 23:23:42 +01001804config CPU_FREQ_S3C24XX_DEBUGFS
1805 bool "Export debugfs for CPUFreq"
1806 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1807 help
1808 Export status information via debugfs.
1809
Linus Torvalds1da177e2005-04-16 15:20:36 -07001810endif
1811
Russell Kingac9d7ef2008-08-18 17:26:00 +01001812source "drivers/cpuidle/Kconfig"
1813
1814endmenu
1815
Linus Torvalds1da177e2005-04-16 15:20:36 -07001816menu "Floating point emulation"
1817
1818comment "At least one emulation must be selected"
1819
1820config FPE_NWFPE
1821 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001822 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001823 ---help---
1824 Say Y to include the NWFPE floating point emulator in the kernel.
1825 This is necessary to run most binaries. Linux does not currently
1826 support floating point hardware so you need to say Y here even if
1827 your machine has an FPA or floating point co-processor podule.
1828
1829 You may say N here if you are going to load the Acorn FPEmulator
1830 early in the bootup.
1831
1832config FPE_NWFPE_XP
1833 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001834 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001835 help
1836 Say Y to include 80-bit support in the kernel floating-point
1837 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1838 Note that gcc does not generate 80-bit operations by default,
1839 so in most cases this option only enlarges the size of the
1840 floating point emulator without any good reason.
1841
1842 You almost surely want to say N here.
1843
1844config FPE_FASTFPE
1845 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001846 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001847 ---help---
1848 Say Y here to include the FAST floating point emulator in the kernel.
1849 This is an experimental much faster emulator which now also has full
1850 precision for the mantissa. It does not support any exceptions.
1851 It is very simple, and approximately 3-6 times faster than NWFPE.
1852
1853 It should be sufficient for most programs. It may be not suitable
1854 for scientific calculations, but you have to check this for yourself.
1855 If you do not feel you need a faster FP emulation you should better
1856 choose NWFPE.
1857
1858config VFP
1859 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001860 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861 help
1862 Say Y to include VFP support code in the kernel. This is needed
1863 if your hardware includes a VFP unit.
1864
1865 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1866 release notes and additional status information.
1867
1868 Say N if your target does not have VFP hardware.
1869
Catalin Marinas25ebee02007-09-25 15:22:24 +01001870config VFPv3
1871 bool
1872 depends on VFP
1873 default y if CPU_V7
1874
Catalin Marinasb5872db2008-01-10 19:16:17 +01001875config NEON
1876 bool "Advanced SIMD (NEON) Extension support"
1877 depends on VFPv3 && CPU_V7
1878 help
1879 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1880 Extension.
1881
Linus Torvalds1da177e2005-04-16 15:20:36 -07001882endmenu
1883
1884menu "Userspace binary formats"
1885
1886source "fs/Kconfig.binfmt"
1887
1888config ARTHUR
1889 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001890 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891 help
1892 Say Y here to include the kernel code necessary if you want to run
1893 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1894 experimental; if this sounds frightening, say N and sleep in peace.
1895 You can also say M here to compile this support as a module (which
1896 will be called arthur).
1897
1898endmenu
1899
1900menu "Power management options"
1901
Russell Kingeceab4a2005-11-15 11:31:41 +00001902source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001903
Johannes Bergf4cb5702007-12-08 02:14:00 +01001904config ARCH_SUSPEND_POSSIBLE
1905 def_bool y
1906
Linus Torvalds1da177e2005-04-16 15:20:36 -07001907endmenu
1908
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001909source "net/Kconfig"
1910
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001911source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001912
1913source "fs/Kconfig"
1914
Linus Torvalds1da177e2005-04-16 15:20:36 -07001915source "arch/arm/Kconfig.debug"
1916
1917source "security/Kconfig"
1918
1919source "crypto/Kconfig"
1920
1921source "lib/Kconfig"