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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
Russell Kingdc21af92011-01-04 19:09:43 +0000194config ARM_PATCH_PHYS_VIRT
195 bool "Patch physical to virtual translations at runtime (EXPERIMENTAL)"
196 depends on EXPERIMENTAL
197 depends on !XIP_KERNEL && !THUMB2_KERNEL && MMU
198 depends on !ARCH_MSM
199 depends on !ARCH_REALVIEW || !SPARSEMEM
200 help
201 Patch phys-to-virt translation functions at runtime according to
202 the position of the kernel in system memory.
203
204 This can only be used with non-XIP, non-Thumb2, MMU kernels where
205 the base of physical memory is at a 16MB boundary.
206
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207source "init/Kconfig"
208
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700209source "kernel/Kconfig.freezer"
210
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211menu "System Type"
212
Hyok S. Choi3c427972009-07-24 12:35:00 +0100213config MMU
214 bool "MMU-based Paged Memory Management Support"
215 default y
216 help
217 Select if you want MMU-based virtualised addressing space
218 support by paged memory management. If unsure, say 'Y'.
219
Russell Kingccf50e22010-03-15 19:03:06 +0000220#
221# The "ARM system type" choice list is ordered alphabetically by option
222# text. Please add new entries in the option alphabetic order.
223#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224choice
225 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000226 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100228config ARCH_AAEC2000
229 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000230 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100231 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700232 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000233 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100234 help
235 This enables support for systems based on the Agilent AAEC-2000
236
237config ARCH_INTEGRATOR
238 bool "ARM Ltd. Integrator family"
239 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100240 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100241 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000242 select ICST
Russell King13edd862010-01-15 21:49:23 +0000243 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000244 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100245 help
246 Support for ARM's Integrator platform.
247
248config ARCH_REALVIEW
249 bool "ARM Ltd. RealView family"
250 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100251 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000252 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000253 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100254 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100255 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000256 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000257 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100258 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100259 help
260 This enables support for ARM Ltd RealView boards.
261
262config ARCH_VERSATILE
263 bool "ARM Ltd. Versatile family"
264 select ARM_AMBA
265 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100266 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000267 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000268 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100269 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100270 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000271 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000272 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100273 help
274 This enables support for ARM Ltd Versatile board.
275
Russell Kingceade892010-02-11 21:44:53 +0000276config ARCH_VEXPRESS
277 bool "ARM Ltd. Versatile Express family"
278 select ARCH_WANT_OPTIONAL_GPIOLIB
279 select ARM_AMBA
280 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100281 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000282 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000283 select HAVE_CLK
Russell King0af85dd2010-12-15 21:58:50 +0000284 select HAVE_SCHED_CLOCK
Russell Kingceade892010-02-11 21:44:53 +0000285 select ICST
286 select PLAT_VERSATILE
287 help
288 This enables support for the ARM Ltd Versatile Express boards.
289
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100290config ARCH_AT91
291 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100292 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700293 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100294 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100295 This enables support for systems based on the Atmel AT91RM9200,
296 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100297
Russell Kingccf50e22010-03-15 19:03:06 +0000298config ARCH_BCMRING
299 bool "Broadcom BCMRING"
300 depends on MMU
301 select CPU_V6
302 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100303 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000304 select GENERIC_CLOCKEVENTS
305 select ARCH_WANT_OPTIONAL_GPIOLIB
306 help
307 Support for Broadcom's BCMRing platform.
308
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100310 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000311 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000312 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000313 help
314 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300316config ARCH_CNS3XXX
317 bool "Cavium Networks CNS3XXX family"
318 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300319 select GENERIC_CLOCKEVENTS
320 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100321 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400322 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300323 help
324 Support for Cavium Networks CNS3XXX platform.
325
Russell King788c9702009-04-26 14:21:59 +0100326config ARCH_GEMINI
327 bool "Cortina Systems Gemini"
328 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100329 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000330 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100331 help
332 Support for the Cortina Systems Gemini family SoCs
333
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334config ARCH_EBSA110
335 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000336 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100337 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000338 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000339 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 help
341 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000342 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343 Ethernet interface, two PCMCIA sockets, two serial ports and a
344 parallel port.
345
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000346config ARCH_EP93XX
347 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000348 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000349 select ARM_AMBA
350 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100351 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700352 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100353 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000354 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000355 help
356 This enables support for the Cirrus EP93xx series of CPUs.
357
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358config ARCH_FOOTBRIDGE
359 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000360 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000362 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000363 help
364 Support for systems based on the DC21285 companion chip
365 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366
Russell King788c9702009-04-26 14:21:59 +0100367config ARCH_MXC
368 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100369 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100370 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100371 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100372 help
373 Support for Freescale MXC/iMX-based family of processors
374
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800375config ARCH_MXS
376 bool "Freescale MXS-based"
377 select GENERIC_CLOCKEVENTS
378 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100379 select CLKDEV_LOOKUP
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800380 help
381 Support for Freescale MXS-based family of processors
382
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100383config ARCH_STMP3XXX
384 bool "Freescale STMP3xxx"
385 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100386 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100387 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100388 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100389 select USB_ARCH_HAS_EHCI
390 help
391 Support for systems based on the Freescale 3xxx CPUs.
392
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100393config ARCH_NETX
394 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000395 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100396 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100397 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000398 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100399 This enables support for systems based on the Hilscher NetX Soc
400
401config ARCH_H720X
402 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000403 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100404 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000405 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100406 help
407 This enables support for systems based on the Hynix HMS720x
408
Russell King3b938be2007-05-12 11:25:44 +0100409config ARCH_IOP13XX
410 bool "IOP13xx-based"
411 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000412 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100413 select PLAT_IOP
414 select PCI
415 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100416 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100417 help
418 Support for Intel's IOP13XX (XScale) family of processors.
419
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100420config ARCH_IOP32X
421 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100422 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000423 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100424 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100425 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100426 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000427 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100428 Support for Intel's 80219 and IOP32X (XScale) family of
429 processors.
430
431config ARCH_IOP33X
432 bool "IOP33x-based"
433 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000434 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100435 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100436 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100437 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100438 help
439 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440
Russell King3b938be2007-05-12 11:25:44 +0100441config ARCH_IXP23XX
442 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100443 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000444 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100445 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000446 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100447 help
Russell King3b938be2007-05-12 11:25:44 +0100448 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
450config ARCH_IXP2000
451 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100452 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000453 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100454 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000455 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000456 help
457 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458
Russell King3b938be2007-05-12 11:25:44 +0100459config ARCH_IXP4XX
460 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100461 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000462 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100463 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100464 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000465 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100466 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100467 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100468 help
Russell King3b938be2007-05-12 11:25:44 +0100469 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100470
Saeed Bisharaedabd382009-08-06 15:12:43 +0300471config ARCH_DOVE
472 bool "Marvell Dove"
473 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300474 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300475 select GENERIC_CLOCKEVENTS
476 select PLAT_ORION
477 help
478 Support for the Marvell Dove SoC 88AP510
479
Saeed Bishara651c74c2008-06-22 22:45:06 +0200480config ARCH_KIRKWOOD
481 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000482 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200483 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700484 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200485 select GENERIC_CLOCKEVENTS
486 select PLAT_ORION
487 help
488 Support for the following Marvell Kirkwood series SoCs:
489 88F6180, 88F6192 and 88F6281.
490
Russell King788c9702009-04-26 14:21:59 +0100491config ARCH_LOKI
492 bool "Marvell Loki (88RC8480)"
493 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100494 select GENERIC_CLOCKEVENTS
495 select PLAT_ORION
496 help
497 Support for the Marvell Loki (88RC8480) SoC.
498
Kevin Wells40805942010-07-27 08:49:04 -0700499config ARCH_LPC32XX
500 bool "NXP LPC32XX"
501 select CPU_ARM926T
502 select ARCH_REQUIRE_GPIOLIB
503 select HAVE_IDE
504 select ARM_AMBA
505 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100506 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700507 select GENERIC_TIME
508 select GENERIC_CLOCKEVENTS
509 help
510 Support for the NXP LPC32XX family of processors
511
Russell King788c9702009-04-26 14:21:59 +0100512config ARCH_MV78XX0
513 bool "Marvell MV78xx0"
514 select CPU_FEROCEON
515 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700516 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100517 select GENERIC_CLOCKEVENTS
518 select PLAT_ORION
519 help
520 Support for the following Marvell MV78xx0 series SoCs:
521 MV781x0, MV782x0.
522
523config ARCH_ORION5X
524 bool "Marvell Orion"
525 depends on MMU
526 select CPU_FEROCEON
527 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700528 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100529 select GENERIC_CLOCKEVENTS
530 select PLAT_ORION
531 help
532 Support for the following Marvell Orion 5x series SoCs:
533 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
534 Orion-2 (5281), Orion-1-90 (6183).
535
536config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500537 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100538 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100539 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100540 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100541 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000542 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100543 select TICK_ONESHOT
544 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400545 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100546 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500547 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100548
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100549config ARCH_KS8695
550 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000551 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100552 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000553 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100554 help
555 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
556 System-on-Chip devices.
557
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100558config ARCH_NS9XXX
559 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000560 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100561 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100562 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700563 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100564 help
565 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
566 System.
567
568 <http://www.digi.com/products/microprocessors/index.jsp>
569
Russell King788c9702009-04-26 14:21:59 +0100570config ARCH_W90X900
571 bool "Nuvoton W90X900 CPU"
572 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100573 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100574 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100575 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200576 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100577 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
578 At present, the w90x900 has been renamed nuc900, regarding
579 the ARM series product line, you can login the following
580 link address to know more.
581
582 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
583 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400584
wanzongshuna62e9032009-12-31 15:06:05 +0100585config ARCH_NUC93X
586 bool "Nuvoton NUC93X CPU"
587 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100588 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100589 help
590 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
591 low-power and high performance MPEG-4/JPEG multimedia controller chip.
592
Erik Gillingc5f80062010-01-21 16:53:02 -0800593config ARCH_TEGRA
594 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000595 select CLKDEV_LOOKUP
Erik Gillingc5f80062010-01-21 16:53:02 -0800596 select GENERIC_TIME
597 select GENERIC_CLOCKEVENTS
598 select GENERIC_GPIO
599 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000600 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800601 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700602 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800603 help
604 This enables support for NVIDIA Tegra based systems (Tegra APX,
605 Tegra 6xx and Tegra 2 series).
606
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100607config ARCH_PNX4008
608 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000609 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100610 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000611 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100612 help
613 This enables support for Philips PNX4008 mobile platform.
614
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700616 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100617 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500618 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100619 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100620 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700621 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100622 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000623 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000624 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800625 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800626 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000627 help
eric miao2c8086a2007-09-11 19:13:17 -0700628 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629
Russell King788c9702009-04-26 14:21:59 +0100630config ARCH_MSM
631 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500632 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800633 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700634 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800635 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800636 Support for Qualcomm MSM/QSD based systems. This runs on the
637 apps processor of the MSM/QSD and depends on a shared memory
638 interface to the modem processor which runs the baseband
639 stack and controls some vital subsystems
640 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800641
Magnus Dammc793c1b2010-02-05 11:14:49 +0000642config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900643 bool "Renesas SH-Mobile / R-Mobile"
644 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900645 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900646 select GENERIC_CLOCKEVENTS
647 select NO_IOPORT
648 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000649 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000650 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900651 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000652
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653config ARCH_RPC
654 bool "RiscPC"
655 select ARCH_ACORN
656 select FIQ
657 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100658 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100659 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000660 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000661 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100662 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000663 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664 help
665 On the Acorn Risc-PC, Linux can support the internal IDE disk and
666 CD-ROM interface, serial and parallel port, and the floppy drive.
667
668config ARCH_SA1100
669 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000670 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100671 select ISA
Russell King05944d72006-11-30 20:43:51 +0000672 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500673 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100674 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000675 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100676 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700677 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000678 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100679 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700680 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000681 help
682 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683
684config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900685 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800686 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100687 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700688 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000689 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900690 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691 help
692 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
693 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000694 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695
Ben Dooks63b1f512010-04-30 16:32:26 +0900696 Note, the S3C2416 and the S3C2450 are so close that they even share
697 the same SoC ID code. This means that there is no seperate machine
698 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
699
Ben Dooksa08ab632008-10-21 14:06:39 +0100700config ARCH_S3C64XX
701 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000702 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900703 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900704 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100705 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900706 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000707 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100708 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900709 select ARCH_REQUIRE_GPIOLIB
710 select SAMSUNG_CLKSRC
711 select SAMSUNG_IRQ_VIC_TIMER
712 select SAMSUNG_IRQ_UART
713 select S3C_GPIO_TRACK
714 select S3C_GPIO_PULL_UPDOWN
715 select S3C_GPIO_CFG_S3C24XX
716 select S3C_GPIO_CFG_S3C64XX
717 select S3C_DEV_NAND
718 select USB_ARCH_HAS_OHCI
719 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900720 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900721 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100722 help
723 Samsung S3C64XX series based systems
724
Kukjin Kim49b7a492010-09-07 15:47:18 +0900725config ARCH_S5P64X0
726 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900727 select CPU_V6
728 select GENERIC_GPIO
729 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900730 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900731 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900732 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900733 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900734 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900735 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
736 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900737
Kukjin Kim550db7f2010-01-29 10:19:26 +0900738config ARCH_S5P6442
739 bool "Samsung S5P6442"
740 select CPU_V6
741 select GENERIC_GPIO
742 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900743 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900744 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900745 help
746 Samsung S5P6442 CPU based systems
747
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200748config ARCH_S5PC100
749 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900750 select GENERIC_GPIO
751 select HAVE_CLK
752 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100753 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900754 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900755 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900756 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900757 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900758 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200759 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900760
Kukjin Kim170f4e42010-02-24 16:40:44 +0900761config ARCH_S5PV210
762 bool "Samsung S5PV210/S5PC110"
763 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900764 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900765 select GENERIC_GPIO
766 select HAVE_CLK
767 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900768 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900769 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900770 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900771 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900772 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900773 help
774 Samsung S5PV210/S5PC110 series based systems
775
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900776config ARCH_S5PV310
777 bool "Samsung S5PV310/S5PC210"
778 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900779 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900780 select GENERIC_GPIO
781 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900782 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900783 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900784 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900785 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900786 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900787 help
788 Samsung S5PV310 series based systems
789
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790config ARCH_SHARK
791 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000792 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100793 select ISA
794 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100795 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100796 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000797 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000798 help
799 Support for the StrongARM based Digital DNARD machine, also known
800 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801
Hans J. Koch83ef3332010-09-17 18:13:56 +0200802config ARCH_TCC_926
803 bool "Telechips TCC ARM926-based systems"
804 select CPU_ARM926T
805 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100806 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200807 select GENERIC_CLOCKEVENTS
808 help
809 Support for Telechips TCC ARM926-based systems.
810
Linus Torvalds1da177e2005-04-16 15:20:36 -0700811config ARCH_LH7A40X
812 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000813 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100814 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000815 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700816 help
817 Say Y here for systems based on one of the Sharp LH7A40X
818 System on a Chip processors. These CPUs include an ARM922T
819 core with a wide array of integrated devices for
820 hand-held and low-power applications.
821
Linus Walleijd98aac72009-04-27 10:21:46 +0100822config ARCH_U300
823 bool "ST-Ericsson U300 Series"
824 depends on MMU
825 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000826 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100827 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100828 select ARM_AMBA
829 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100830 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100831 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100832 select GENERIC_GPIO
833 help
834 Support for ST-Ericsson U300 series mobile platforms.
835
Russell Kingccf50e22010-03-15 19:03:06 +0000836config ARCH_U8500
837 bool "ST-Ericsson U8500 Series"
838 select CPU_V7
839 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000840 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100841 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100842 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100843 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000844 help
845 Support for ST-Ericsson's Ux500 architecture
846
847config ARCH_NOMADIK
848 bool "STMicroelectronics Nomadik"
849 select ARM_AMBA
850 select ARM_VIC
851 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100852 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000853 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000854 select ARCH_REQUIRE_GPIOLIB
855 help
856 Support for the Nomadik platform by ST-Ericsson
857
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100858config ARCH_DAVINCI
859 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100860 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700861 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100862 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700863 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100864 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700865 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530866 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100867 help
868 Support for TI's DaVinci platform.
869
Russell King3b938be2007-05-12 11:25:44 +0100870config ARCH_OMAP
871 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700872 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700873 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100874 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700875 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000876 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800877 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100878 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200879 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100880
viresh kumarcee37e52010-04-01 12:31:05 +0100881config PLAT_SPEAR
882 bool "ST SPEAr"
883 select ARM_AMBA
884 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100885 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100886 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100887 select HAVE_CLK
888 help
889 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
890
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891endchoice
892
Russell Kingccf50e22010-03-15 19:03:06 +0000893#
894# This is sorted alphabetically by mach-* pathname. However, plat-*
895# Kconfigs may be included either alphabetically (according to the
896# plat- suffix) or along side the corresponding mach-* source.
897#
Russell King95b8f202010-01-14 11:43:54 +0000898source "arch/arm/mach-aaec2000/Kconfig"
899
900source "arch/arm/mach-at91/Kconfig"
901
902source "arch/arm/mach-bcmring/Kconfig"
903
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904source "arch/arm/mach-clps711x/Kconfig"
905
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300906source "arch/arm/mach-cns3xxx/Kconfig"
907
Russell King95b8f202010-01-14 11:43:54 +0000908source "arch/arm/mach-davinci/Kconfig"
909
910source "arch/arm/mach-dove/Kconfig"
911
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000912source "arch/arm/mach-ep93xx/Kconfig"
913
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914source "arch/arm/mach-footbridge/Kconfig"
915
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200916source "arch/arm/mach-gemini/Kconfig"
917
Russell King95b8f202010-01-14 11:43:54 +0000918source "arch/arm/mach-h720x/Kconfig"
919
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920source "arch/arm/mach-integrator/Kconfig"
921
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100922source "arch/arm/mach-iop32x/Kconfig"
923
924source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925
Dan Williams285f5fa2006-12-07 02:59:39 +0100926source "arch/arm/mach-iop13xx/Kconfig"
927
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928source "arch/arm/mach-ixp4xx/Kconfig"
929
930source "arch/arm/mach-ixp2000/Kconfig"
931
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100932source "arch/arm/mach-ixp23xx/Kconfig"
933
Russell King95b8f202010-01-14 11:43:54 +0000934source "arch/arm/mach-kirkwood/Kconfig"
935
936source "arch/arm/mach-ks8695/Kconfig"
937
938source "arch/arm/mach-lh7a40x/Kconfig"
939
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200940source "arch/arm/mach-loki/Kconfig"
941
Kevin Wells40805942010-07-27 08:49:04 -0700942source "arch/arm/mach-lpc32xx/Kconfig"
943
Russell King95b8f202010-01-14 11:43:54 +0000944source "arch/arm/mach-msm/Kconfig"
945
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200946source "arch/arm/mach-mv78xx0/Kconfig"
947
Russell King95b8f202010-01-14 11:43:54 +0000948source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800950source "arch/arm/mach-mxs/Kconfig"
951
Russell King95b8f202010-01-14 11:43:54 +0000952source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800953
Russell King95b8f202010-01-14 11:43:54 +0000954source "arch/arm/mach-nomadik/Kconfig"
955source "arch/arm/plat-nomadik/Kconfig"
956
957source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958
Russell Kingd91a8912010-02-04 18:13:17 +0000959source "arch/arm/mach-nuc93x/Kconfig"
960
Tony Lindgrend48af152005-07-10 19:58:17 +0100961source "arch/arm/plat-omap/Kconfig"
962
963source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964
Tony Lindgren1dbae812005-11-10 14:26:51 +0000965source "arch/arm/mach-omap2/Kconfig"
966
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400967source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400968
Russell King95b8f202010-01-14 11:43:54 +0000969source "arch/arm/mach-pxa/Kconfig"
970source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700971
Russell King95b8f202010-01-14 11:43:54 +0000972source "arch/arm/mach-mmp/Kconfig"
973
974source "arch/arm/mach-realview/Kconfig"
975
976source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300977
Ben Dookscf383672009-11-10 00:14:58 +0000978source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100979source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900980source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100981
viresh kumarcee37e52010-04-01 12:31:05 +0100982source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100983
Hans J. Koch83ef3332010-09-17 18:13:56 +0200984source "arch/arm/plat-tcc/Kconfig"
985
Ben Dooksa21765a2007-02-11 18:31:01 +0100986if ARCH_S3C2410
987source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100989source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900990source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100991source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100992source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100993endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994
Ben Dooksa08ab632008-10-21 14:06:39 +0100995if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900996source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100997endif
998
Kukjin Kim49b7a492010-09-07 15:47:18 +0900999source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001000
Kukjin Kim550db7f2010-01-29 10:19:26 +09001001source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +01001002
Byungho Min5a7652f2009-06-23 21:39:42 +09001003source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001004
Kukjin Kim170f4e42010-02-24 16:40:44 +09001005source "arch/arm/mach-s5pv210/Kconfig"
1006
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001007source "arch/arm/mach-s5pv310/Kconfig"
1008
Russell King882d01f2010-03-02 23:40:15 +00001009source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010
Russell King882d01f2010-03-02 23:40:15 +00001011source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -08001012
Erik Gillingc5f80062010-01-21 16:53:02 -08001013source "arch/arm/mach-tegra/Kconfig"
1014
Russell King95b8f202010-01-14 11:43:54 +00001015source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001016
Russell King95b8f202010-01-14 11:43:54 +00001017source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018
1019source "arch/arm/mach-versatile/Kconfig"
1020
Russell Kingceade892010-02-11 21:44:53 +00001021source "arch/arm/mach-vexpress/Kconfig"
1022
wanzongshun7ec80dd2008-12-03 03:55:38 +01001023source "arch/arm/mach-w90x900/Kconfig"
1024
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025# Definitions to make life easier
1026config ARCH_ACORN
1027 bool
1028
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001029config PLAT_IOP
1030 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001031 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001032 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001033
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001034config PLAT_ORION
1035 bool
Russell Kingf06a1622010-12-15 21:55:06 +00001036 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001037
Eric Miaobd5ce432009-01-20 12:06:01 +08001038config PLAT_PXA
1039 bool
1040
Russell Kingf4b8b312010-01-14 12:48:06 +00001041config PLAT_VERSATILE
1042 bool
1043
Russell Kinge3887712010-01-14 13:30:16 +00001044config ARM_TIMER_SP804
1045 bool
1046
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047source arch/arm/mm/Kconfig
1048
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001049config IWMMXT
1050 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001051 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1052 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001053 help
1054 Enable support for iWMMXt context switching at run time if
1055 running on a CPU that supports it.
1056
Linus Torvalds1da177e2005-04-16 15:20:36 -07001057# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1058config XSCALE_PMU
1059 bool
1060 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1061 default y
1062
Jamie Iles0f4f0672010-02-02 20:23:15 +01001063config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001064 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1065 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001066 default y
1067 bool
1068
eric miao52108642010-12-13 09:42:34 +01001069config MULTI_IRQ_HANDLER
1070 bool
1071 help
1072 Allow each machine to specify it's own IRQ handler at run time.
1073
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001074if !MMU
1075source "arch/arm/Kconfig-nommu"
1076endif
1077
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001078config ARM_ERRATA_411920
1079 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001080 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001081 help
1082 Invalidation of the Instruction Cache operation can
1083 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1084 It does not affect the MPCore. This option enables the ARM Ltd.
1085 recommended workaround.
1086
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001087config ARM_ERRATA_430973
1088 bool "ARM errata: Stale prediction on replaced interworking branch"
1089 depends on CPU_V7
1090 help
1091 This option enables the workaround for the 430973 Cortex-A8
1092 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1093 interworking branch is replaced with another code sequence at the
1094 same virtual address, whether due to self-modifying code or virtual
1095 to physical address re-mapping, Cortex-A8 does not recover from the
1096 stale interworking branch prediction. This results in Cortex-A8
1097 executing the new code sequence in the incorrect ARM or Thumb state.
1098 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1099 and also flushes the branch target cache at every context switch.
1100 Note that setting specific bits in the ACTLR register may not be
1101 available in non-secure mode.
1102
Catalin Marinas855c5512009-04-30 17:06:15 +01001103config ARM_ERRATA_458693
1104 bool "ARM errata: Processor deadlock when a false hazard is created"
1105 depends on CPU_V7
1106 help
1107 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1108 erratum. For very specific sequences of memory operations, it is
1109 possible for a hazard condition intended for a cache line to instead
1110 be incorrectly associated with a different cache line. This false
1111 hazard might then cause a processor deadlock. The workaround enables
1112 the L1 caching of the NEON accesses and disables the PLD instruction
1113 in the ACTLR register. Note that setting specific bits in the ACTLR
1114 register may not be available in non-secure mode.
1115
Catalin Marinas0516e462009-04-30 17:06:20 +01001116config ARM_ERRATA_460075
1117 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1118 depends on CPU_V7
1119 help
1120 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1121 erratum. Any asynchronous access to the L2 cache may encounter a
1122 situation in which recent store transactions to the L2 cache are lost
1123 and overwritten with stale memory contents from external memory. The
1124 workaround disables the write-allocate mode for the L2 cache via the
1125 ACTLR register. Note that setting specific bits in the ACTLR register
1126 may not be available in non-secure mode.
1127
Will Deacon9f050272010-09-14 09:51:43 +01001128config ARM_ERRATA_742230
1129 bool "ARM errata: DMB operation may be faulty"
1130 depends on CPU_V7 && SMP
1131 help
1132 This option enables the workaround for the 742230 Cortex-A9
1133 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1134 between two write operations may not ensure the correct visibility
1135 ordering of the two writes. This workaround sets a specific bit in
1136 the diagnostic register of the Cortex-A9 which causes the DMB
1137 instruction to behave as a DSB, ensuring the correct behaviour of
1138 the two writes.
1139
Will Deacona672e992010-09-14 09:53:02 +01001140config ARM_ERRATA_742231
1141 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1142 depends on CPU_V7 && SMP
1143 help
1144 This option enables the workaround for the 742231 Cortex-A9
1145 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1146 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1147 accessing some data located in the same cache line, may get corrupted
1148 data due to bad handling of the address hazard when the line gets
1149 replaced from one of the CPUs at the same time as another CPU is
1150 accessing it. This workaround sets specific bits in the diagnostic
1151 register of the Cortex-A9 which reduces the linefill issuing
1152 capabilities of the processor.
1153
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001154config PL310_ERRATA_588369
1155 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1156 depends on CACHE_L2X0 && ARCH_OMAP4
1157 help
1158 The PL310 L2 cache controller implements three types of Clean &
1159 Invalidate maintenance operations: by Physical Address
1160 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1161 They are architecturally defined to behave as the execution of a
1162 clean operation followed immediately by an invalidate operation,
1163 both performing to the same memory location. This functionality
1164 is not correctly implemented in PL310 as clean lines are not
1165 invalidated as a result of these operations. Note that this errata
1166 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001167
1168config ARM_ERRATA_720789
1169 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1170 depends on CPU_V7 && SMP
1171 help
1172 This option enables the workaround for the 720789 Cortex-A9 (prior to
1173 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1174 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1175 As a consequence of this erratum, some TLB entries which should be
1176 invalidated are not, resulting in an incoherency in the system page
1177 tables. The workaround changes the TLB flushing routines to invalidate
1178 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001179
1180config ARM_ERRATA_743622
1181 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1182 depends on CPU_V7
1183 help
1184 This option enables the workaround for the 743622 Cortex-A9
1185 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1186 optimisation in the Cortex-A9 Store Buffer may lead to data
1187 corruption. This workaround sets a specific bit in the diagnostic
1188 register of the Cortex-A9 which disables the Store Buffer
1189 optimisation, preventing the defect from occurring. This has no
1190 visible impact on the overall performance or power consumption of the
1191 processor.
1192
Linus Torvalds1da177e2005-04-16 15:20:36 -07001193endmenu
1194
1195source "arch/arm/common/Kconfig"
1196
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197menu "Bus support"
1198
1199config ARM_AMBA
1200 bool
1201
1202config ISA
1203 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001204 help
1205 Find out whether you have ISA slots on your motherboard. ISA is the
1206 name of a bus system, i.e. the way the CPU talks to the other stuff
1207 inside your box. Other bus systems are PCI, EISA, MicroChannel
1208 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1209 newer boards don't support it. If you have ISA, say Y, otherwise N.
1210
Russell King065909b2006-01-04 15:44:16 +00001211# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001212config ISA_DMA
1213 bool
Russell King065909b2006-01-04 15:44:16 +00001214 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001215
Russell King065909b2006-01-04 15:44:16 +00001216# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001217config ISA_DMA_API
1218 bool
Al Viro5cae8412005-05-04 05:39:22 +01001219
Linus Torvalds1da177e2005-04-16 15:20:36 -07001220config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001221 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001222 help
1223 Find out whether you have a PCI motherboard. PCI is the name of a
1224 bus system, i.e. the way the CPU talks to the other stuff inside
1225 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1226 VESA. If you have PCI, say Y, otherwise N.
1227
Anton Vorontsov52882172010-04-19 13:20:49 +01001228config PCI_DOMAINS
1229 bool
1230 depends on PCI
1231
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001232config PCI_NANOENGINE
1233 bool "BSE nanoEngine PCI support"
1234 depends on SA1100_NANOENGINE
1235 help
1236 Enable PCI on the BSE nanoEngine board.
1237
Matthew Wilcox36e23592007-07-10 10:54:40 -06001238config PCI_SYSCALL
1239 def_bool PCI
1240
Linus Torvalds1da177e2005-04-16 15:20:36 -07001241# Select the host bridge type
1242config PCI_HOST_VIA82C505
1243 bool
1244 depends on PCI && ARCH_SHARK
1245 default y
1246
Mike Rapoporta0113a92007-11-25 08:55:34 +01001247config PCI_HOST_ITE8152
1248 bool
1249 depends on PCI && MACH_ARMCORE
1250 default y
1251 select DMABOUNCE
1252
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253source "drivers/pci/Kconfig"
1254
1255source "drivers/pcmcia/Kconfig"
1256
1257endmenu
1258
1259menu "Kernel Features"
1260
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001261source "kernel/time/Kconfig"
1262
Linus Torvalds1da177e2005-04-16 15:20:36 -07001263config SMP
1264 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001265 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001266 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001267 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001268 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1269 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001270 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001271 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001272 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273 help
1274 This enables support for systems with more than one CPU. If you have
1275 a system with only one CPU, like most personal computers, say N. If
1276 you have a system with more than one CPU, say Y.
1277
1278 If you say N here, the kernel will run on single and multiprocessor
1279 machines, but will use only one CPU of a multiprocessor machine. If
1280 you say Y here, the kernel will run on many, but not all, single
1281 processor machines. On a single processor machine, the kernel will
1282 run faster if you say N here.
1283
Adrian Bunk03502fa2008-02-03 15:50:21 +02001284 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001285 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001286 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001287
1288 If you don't know what to do here, say N.
1289
Russell Kingf00ec482010-09-04 10:47:48 +01001290config SMP_ON_UP
1291 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1292 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001293 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001294 default y
1295 help
1296 SMP kernels contain instructions which fail on non-SMP processors.
1297 Enabling this option allows the kernel to modify itself to make
1298 these instructions safe. Disabling it allows about 1K of space
1299 savings.
1300
1301 If you don't know what to do here, say Y.
1302
Russell Kinga8cbcd92009-05-16 11:51:14 +01001303config HAVE_ARM_SCU
1304 bool
1305 depends on SMP
1306 help
1307 This option enables support for the ARM system coherency unit
1308
Russell Kingf32f4ce2009-05-16 12:14:21 +01001309config HAVE_ARM_TWD
1310 bool
1311 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001312 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001313 help
1314 This options enables support for the ARM timer and watchdog unit
1315
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001316choice
1317 prompt "Memory split"
1318 default VMSPLIT_3G
1319 help
1320 Select the desired split between kernel and user memory.
1321
1322 If you are not absolutely sure what you are doing, leave this
1323 option alone!
1324
1325 config VMSPLIT_3G
1326 bool "3G/1G user/kernel split"
1327 config VMSPLIT_2G
1328 bool "2G/2G user/kernel split"
1329 config VMSPLIT_1G
1330 bool "1G/3G user/kernel split"
1331endchoice
1332
1333config PAGE_OFFSET
1334 hex
1335 default 0x40000000 if VMSPLIT_1G
1336 default 0x80000000 if VMSPLIT_2G
1337 default 0xC0000000
1338
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339config NR_CPUS
1340 int "Maximum number of CPUs (2-32)"
1341 range 2 32
1342 depends on SMP
1343 default "4"
1344
Russell Kinga054a812005-11-02 22:24:33 +00001345config HOTPLUG_CPU
1346 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1347 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001348 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001349 help
1350 Say Y here to experiment with turning CPUs off and on. CPUs
1351 can be controlled through /sys/devices/system/cpu.
1352
Russell King37ee16a2005-11-08 19:08:05 +00001353config LOCAL_TIMERS
1354 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001355 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001356 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001357 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001358 help
1359 Enable support for local timers on SMP platforms, rather then the
1360 legacy IPI broadcast method. Local timers allows the system
1361 accounting to be spread across the timer interval, preventing a
1362 "thundering herd" at every timer tick.
1363
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001364source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365
Russell Kingf8065812006-03-02 22:41:59 +00001366config HZ
1367 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001368 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001369 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001370 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001371 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001372 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001373 default 100
1374
Catalin Marinas16c79652009-07-24 12:33:02 +01001375config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001376 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Dave Martin6e6fc992010-12-13 21:53:53 +01001377 depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001378 select AEABI
1379 select ARM_ASM_UNIFIED
1380 help
1381 By enabling this option, the kernel will be compiled in
1382 Thumb-2 mode. A compiler/assembler that understand the unified
1383 ARM-Thumb syntax is needed.
1384
1385 If unsure, say N.
1386
Catalin Marinas0becb082009-07-24 12:32:53 +01001387config ARM_ASM_UNIFIED
1388 bool
1389
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001390config AEABI
1391 bool "Use the ARM EABI to compile the kernel"
1392 help
1393 This option allows for the kernel to be compiled using the latest
1394 ARM ABI (aka EABI). This is only useful if you are using a user
1395 space environment that is also compiled with EABI.
1396
1397 Since there are major incompatibilities between the legacy ABI and
1398 EABI, especially with regard to structure member alignment, this
1399 option also changes the kernel syscall calling convention to
1400 disambiguate both ABIs and allow for backward compatibility support
1401 (selected with CONFIG_OABI_COMPAT).
1402
1403 To use this you need GCC version 4.0.0 or later.
1404
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001405config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001406 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001407 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001408 default y
1409 help
1410 This option preserves the old syscall interface along with the
1411 new (ARM EABI) one. It also provides a compatibility layer to
1412 intercept syscalls that have structure arguments which layout
1413 in memory differs between the legacy ABI and the new ARM EABI
1414 (only for non "thumb" binaries). This option adds a tiny
1415 overhead to all syscalls and produces a slightly larger kernel.
1416 If you know you'll be using only pure EABI user space then you
1417 can say N here. If this option is not selected and you attempt
1418 to execute a legacy ABI binary then the result will be
1419 UNPREDICTABLE (in fact it can be predicted that it won't work
1420 at all). If in doubt say Y.
1421
Mel Gormaneb335752009-05-13 17:34:48 +01001422config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001423 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001424
Russell King05944d72006-11-30 20:43:51 +00001425config ARCH_SPARSEMEM_ENABLE
1426 bool
1427
Russell King07a2f732008-10-01 21:39:58 +01001428config ARCH_SPARSEMEM_DEFAULT
1429 def_bool ARCH_SPARSEMEM_ENABLE
1430
Russell King05944d72006-11-30 20:43:51 +00001431config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001432 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001433
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001434config HIGHMEM
1435 bool "High Memory Support (EXPERIMENTAL)"
1436 depends on MMU && EXPERIMENTAL
1437 help
1438 The address space of ARM processors is only 4 Gigabytes large
1439 and it has to accommodate user address space, kernel address
1440 space as well as some memory mapped IO. That means that, if you
1441 have a large amount of physical memory and/or IO, not all of the
1442 memory can be "permanently mapped" by the kernel. The physical
1443 memory that is not permanently mapped is called "high memory".
1444
1445 Depending on the selected kernel/user memory split, minimum
1446 vmalloc space and actual amount of RAM, you may not need this
1447 option which should result in a slightly faster kernel.
1448
1449 If unsure, say n.
1450
Russell King65cec8e2009-08-17 20:02:06 +01001451config HIGHPTE
1452 bool "Allocate 2nd-level pagetables from highmem"
1453 depends on HIGHMEM
1454 depends on !OUTER_CACHE
1455
Jamie Iles1b8873a2010-02-02 20:25:44 +01001456config HW_PERF_EVENTS
1457 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001458 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001459 default y
1460 help
1461 Enable hardware performance counter support for perf events. If
1462 disabled, perf events will use software events only.
1463
Dave Hansen3f22ab22005-06-23 00:07:43 -07001464source "mm/Kconfig"
1465
Magnus Dammc1b2d972010-07-05 10:00:11 +01001466config FORCE_MAX_ZONEORDER
1467 int "Maximum zone order" if ARCH_SHMOBILE
1468 range 11 64 if ARCH_SHMOBILE
1469 default "9" if SA1111
1470 default "11"
1471 help
1472 The kernel memory allocator divides physically contiguous memory
1473 blocks into "zones", where each zone is a power of two number of
1474 pages. This option selects the largest power of two that the kernel
1475 keeps in the memory allocator. If you need to allocate very large
1476 blocks of physically contiguous memory, then you may need to
1477 increase this value.
1478
1479 This config option is actually maximum order plus one. For example,
1480 a value of 11 means that the largest free memory block is 2^10 pages.
1481
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482config LEDS
1483 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001484 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001485 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1487 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001488 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001489 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001490 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001491 help
1492 If you say Y here, the LEDs on your machine will be used
1493 to provide useful information about your current system status.
1494
1495 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1496 be able to select which LEDs are active using the options below. If
1497 you are compiling a kernel for the EBSA-110 or the LART however, the
1498 red LED will simply flash regularly to indicate that the system is
1499 still functional. It is safe to say Y here if you have a CATS
1500 system, but the driver will do nothing.
1501
1502config LEDS_TIMER
1503 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001504 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1505 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001506 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001507 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001508 default y if ARCH_EBSA110
1509 help
1510 If you say Y here, one of the system LEDs (the green one on the
1511 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1512 will flash regularly to indicate that the system is still
1513 operational. This is mainly useful to kernel hackers who are
1514 debugging unstable kernels.
1515
1516 The LART uses the same LED for both Timer LED and CPU usage LED
1517 functions. You may choose to use both, but the Timer LED function
1518 will overrule the CPU usage LED.
1519
1520config LEDS_CPU
1521 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001522 !ARCH_OMAP) \
1523 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1524 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001525 depends on LEDS
1526 help
1527 If you say Y here, the red LED will be used to give a good real
1528 time indication of CPU usage, by lighting whenever the idle task
1529 is not currently executing.
1530
1531 The LART uses the same LED for both Timer LED and CPU usage LED
1532 functions. You may choose to use both, but the Timer LED function
1533 will overrule the CPU usage LED.
1534
1535config ALIGNMENT_TRAP
1536 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001537 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001538 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001539 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001541 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001542 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1543 address divisible by 4. On 32-bit ARM processors, these non-aligned
1544 fetch/store instructions will be emulated in software if you say
1545 here, which has a severe performance impact. This is necessary for
1546 correct operation of some network protocols. With an IP-only
1547 configuration it is safe to say N, otherwise say Y.
1548
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001549config UACCESS_WITH_MEMCPY
1550 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1551 depends on MMU && EXPERIMENTAL
1552 default y if CPU_FEROCEON
1553 help
1554 Implement faster copy_to_user and clear_user methods for CPU
1555 cores where a 8-word STM instruction give significantly higher
1556 memory write throughput than a sequence of individual 32bit stores.
1557
1558 A possible side effect is a slight increase in scheduling latency
1559 between threads sharing the same address space if they invoke
1560 such copy operations with large buffers.
1561
1562 However, if the CPU data cache is using a write-allocate mode,
1563 this option is unlikely to provide any performance gain.
1564
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001565config SECCOMP
1566 bool
1567 prompt "Enable seccomp to safely compute untrusted bytecode"
1568 ---help---
1569 This kernel feature is useful for number crunching applications
1570 that may need to compute untrusted bytecode during their
1571 execution. By using pipes or other transports made available to
1572 the process as file descriptors supporting the read/write
1573 syscalls, it's possible to isolate those applications in
1574 their own address space using seccomp. Once seccomp is
1575 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1576 and the task is only allowed to execute a few safe syscalls
1577 defined by each seccomp mode.
1578
Nicolas Pitrec743f382010-05-24 23:55:42 -04001579config CC_STACKPROTECTOR
1580 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001581 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001582 help
1583 This option turns on the -fstack-protector GCC feature. This
1584 feature puts, at the beginning of functions, a canary value on
1585 the stack just before the return address, and validates
1586 the value just before actually returning. Stack based buffer
1587 overflows (that need to overwrite this return address) now also
1588 overwrite the canary, which gets detected and the attack is then
1589 neutralized via a kernel panic.
1590 This feature requires gcc version 4.2 or above.
1591
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001592config DEPRECATED_PARAM_STRUCT
1593 bool "Provide old way to pass kernel parameters"
1594 help
1595 This was deprecated in 2001 and announced to live on for 5 years.
1596 Some old boot loaders still use this way.
1597
Linus Torvalds1da177e2005-04-16 15:20:36 -07001598endmenu
1599
1600menu "Boot options"
1601
1602# Compressed boot loader in ROM. Yes, we really want to ask about
1603# TEXT and BSS so we preserve their values in the config files.
1604config ZBOOT_ROM_TEXT
1605 hex "Compressed ROM boot loader base address"
1606 default "0"
1607 help
1608 The physical address at which the ROM-able zImage is to be
1609 placed in the target. Platforms which normally make use of
1610 ROM-able zImage formats normally set this to a suitable
1611 value in their defconfig file.
1612
1613 If ZBOOT_ROM is not enabled, this has no effect.
1614
1615config ZBOOT_ROM_BSS
1616 hex "Compressed ROM boot loader BSS address"
1617 default "0"
1618 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001619 The base address of an area of read/write memory in the target
1620 for the ROM-able zImage which must be available while the
1621 decompressor is running. It must be large enough to hold the
1622 entire decompressed kernel plus an additional 128 KiB.
1623 Platforms which normally make use of ROM-able zImage formats
1624 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001625
1626 If ZBOOT_ROM is not enabled, this has no effect.
1627
1628config ZBOOT_ROM
1629 bool "Compressed boot loader in ROM/flash"
1630 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1631 help
1632 Say Y here if you intend to execute your compressed kernel image
1633 (zImage) directly from ROM or flash. If unsure, say N.
1634
1635config CMDLINE
1636 string "Default kernel command string"
1637 default ""
1638 help
1639 On some architectures (EBSA110 and CATS), there is currently no way
1640 for the boot loader to pass arguments to the kernel. For these
1641 architectures, you should supply some command-line options at build
1642 time by entering them here. As a minimum, you should specify the
1643 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1644
Alexander Holler92d20402010-02-16 19:04:53 +01001645config CMDLINE_FORCE
1646 bool "Always use the default kernel command string"
1647 depends on CMDLINE != ""
1648 help
1649 Always use the default kernel command string, even if the boot
1650 loader passes other arguments to the kernel.
1651 This is useful if you cannot or don't want to change the
1652 command-line options your boot loader passes to the kernel.
1653
1654 If unsure, say N.
1655
Linus Torvalds1da177e2005-04-16 15:20:36 -07001656config XIP_KERNEL
1657 bool "Kernel Execute-In-Place from ROM"
1658 depends on !ZBOOT_ROM
1659 help
1660 Execute-In-Place allows the kernel to run from non-volatile storage
1661 directly addressable by the CPU, such as NOR flash. This saves RAM
1662 space since the text section of the kernel is not loaded from flash
1663 to RAM. Read-write sections, such as the data section and stack,
1664 are still copied to RAM. The XIP kernel is not compressed since
1665 it has to run directly from flash, so it will take more space to
1666 store it. The flash address used to link the kernel object files,
1667 and for storing it, is configuration dependent. Therefore, if you
1668 say Y here, you must know the proper physical address where to
1669 store the kernel image depending on your own flash memory usage.
1670
1671 Also note that the make target becomes "make xipImage" rather than
1672 "make zImage" or "make Image". The final kernel binary to put in
1673 ROM memory will be arch/arm/boot/xipImage.
1674
1675 If unsure, say N.
1676
1677config XIP_PHYS_ADDR
1678 hex "XIP Kernel Physical Location"
1679 depends on XIP_KERNEL
1680 default "0x00080000"
1681 help
1682 This is the physical address in your flash memory the kernel will
1683 be linked for and stored to. This address is dependent on your
1684 own flash usage.
1685
Richard Purdiec587e4a2007-02-06 21:29:00 +01001686config KEXEC
1687 bool "Kexec system call (EXPERIMENTAL)"
1688 depends on EXPERIMENTAL
1689 help
1690 kexec is a system call that implements the ability to shutdown your
1691 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001692 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001693 you can start any kernel with it, not just Linux.
1694
1695 It is an ongoing process to be certain the hardware in a machine
1696 is properly shutdown, so do not be surprised if this code does not
1697 initially work for you. It may help to enable device hotplugging
1698 support.
1699
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001700config ATAGS_PROC
1701 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001702 depends on KEXEC
1703 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001704 help
1705 Should the atags used to boot the kernel be exported in an "atags"
1706 file in procfs. Useful with kexec.
1707
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001708config CRASH_DUMP
1709 bool "Build kdump crash kernel (EXPERIMENTAL)"
1710 depends on EXPERIMENTAL
1711 help
1712 Generate crash dump after being started by kexec. This should
1713 be normally only set in special crash dump kernels which are
1714 loaded in the main kernel with kexec-tools into a specially
1715 reserved region and then later executed after a crash by
1716 kdump/kexec. The crash dump kernel must be compiled to a
1717 memory address not used by the main kernel
1718
1719 For more details see Documentation/kdump/kdump.txt
1720
Eric Miaoe69edc792010-07-05 15:56:50 +02001721config AUTO_ZRELADDR
1722 bool "Auto calculation of the decompressed kernel image address"
1723 depends on !ZBOOT_ROM && !ARCH_U300
1724 help
1725 ZRELADDR is the physical address where the decompressed kernel
1726 image will be placed. If AUTO_ZRELADDR is selected, the address
1727 will be determined at run-time by masking the current IP with
1728 0xf8000000. This assumes the zImage being placed in the first 128MB
1729 from start of memory.
1730
Linus Torvalds1da177e2005-04-16 15:20:36 -07001731endmenu
1732
Russell Kingac9d7ef2008-08-18 17:26:00 +01001733menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001734
Ben Dooks89c52ed2009-07-30 23:23:24 +01001735if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736
1737source "drivers/cpufreq/Kconfig"
1738
Yong Shen64f102b2010-10-21 21:18:59 +08001739config CPU_FREQ_IMX
1740 tristate "CPUfreq driver for i.MX CPUs"
1741 depends on ARCH_MXC && CPU_FREQ
1742 help
1743 This enables the CPUfreq driver for i.MX CPUs.
1744
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745config CPU_FREQ_SA1100
1746 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747
1748config CPU_FREQ_SA1110
1749 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750
1751config CPU_FREQ_INTEGRATOR
1752 tristate "CPUfreq driver for ARM Integrator CPUs"
1753 depends on ARCH_INTEGRATOR && CPU_FREQ
1754 default y
1755 help
1756 This enables the CPUfreq driver for ARM Integrator CPUs.
1757
1758 For details, take a look at <file:Documentation/cpu-freq>.
1759
1760 If in doubt, say Y.
1761
Russell King9e2697f2007-12-14 13:30:14 +00001762config CPU_FREQ_PXA
1763 bool
1764 depends on CPU_FREQ && ARCH_PXA && PXA25x
1765 default y
1766 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1767
Mark Brownb3748dd2009-06-15 11:23:20 +01001768config CPU_FREQ_S3C64XX
1769 bool "CPUfreq support for Samsung S3C64XX CPUs"
1770 depends on CPU_FREQ && CPU_S3C6410
1771
Ben Dooks9d56c022009-07-30 23:23:25 +01001772config CPU_FREQ_S3C
1773 bool
1774 help
1775 Internal configuration node for common cpufreq on Samsung SoC
1776
1777config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001778 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001779 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1780 select CPU_FREQ_S3C
1781 help
1782 This enables the CPUfreq driver for the Samsung S3C24XX family
1783 of CPUs.
1784
1785 For details, take a look at <file:Documentation/cpu-freq>.
1786
1787 If in doubt, say N.
1788
1789config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001790 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001791 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1792 help
1793 Compile in support for changing the PLL frequency from the
1794 S3C24XX series CPUfreq driver. The PLL takes time to settle
1795 after a frequency change, so by default it is not enabled.
1796
1797 This also means that the PLL tables for the selected CPU(s) will
1798 be built which may increase the size of the kernel image.
1799
1800config CPU_FREQ_S3C24XX_DEBUG
1801 bool "Debug CPUfreq Samsung driver core"
1802 depends on CPU_FREQ_S3C24XX
1803 help
1804 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1805
1806config CPU_FREQ_S3C24XX_IODEBUG
1807 bool "Debug CPUfreq Samsung driver IO timing"
1808 depends on CPU_FREQ_S3C24XX
1809 help
1810 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1811
Ben Dookse6d197a2009-07-30 23:23:42 +01001812config CPU_FREQ_S3C24XX_DEBUGFS
1813 bool "Export debugfs for CPUFreq"
1814 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1815 help
1816 Export status information via debugfs.
1817
Linus Torvalds1da177e2005-04-16 15:20:36 -07001818endif
1819
Russell Kingac9d7ef2008-08-18 17:26:00 +01001820source "drivers/cpuidle/Kconfig"
1821
1822endmenu
1823
Linus Torvalds1da177e2005-04-16 15:20:36 -07001824menu "Floating point emulation"
1825
1826comment "At least one emulation must be selected"
1827
1828config FPE_NWFPE
1829 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001830 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001831 ---help---
1832 Say Y to include the NWFPE floating point emulator in the kernel.
1833 This is necessary to run most binaries. Linux does not currently
1834 support floating point hardware so you need to say Y here even if
1835 your machine has an FPA or floating point co-processor podule.
1836
1837 You may say N here if you are going to load the Acorn FPEmulator
1838 early in the bootup.
1839
1840config FPE_NWFPE_XP
1841 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001842 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001843 help
1844 Say Y to include 80-bit support in the kernel floating-point
1845 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1846 Note that gcc does not generate 80-bit operations by default,
1847 so in most cases this option only enlarges the size of the
1848 floating point emulator without any good reason.
1849
1850 You almost surely want to say N here.
1851
1852config FPE_FASTFPE
1853 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001854 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001855 ---help---
1856 Say Y here to include the FAST floating point emulator in the kernel.
1857 This is an experimental much faster emulator which now also has full
1858 precision for the mantissa. It does not support any exceptions.
1859 It is very simple, and approximately 3-6 times faster than NWFPE.
1860
1861 It should be sufficient for most programs. It may be not suitable
1862 for scientific calculations, but you have to check this for yourself.
1863 If you do not feel you need a faster FP emulation you should better
1864 choose NWFPE.
1865
1866config VFP
1867 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001868 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001869 help
1870 Say Y to include VFP support code in the kernel. This is needed
1871 if your hardware includes a VFP unit.
1872
1873 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1874 release notes and additional status information.
1875
1876 Say N if your target does not have VFP hardware.
1877
Catalin Marinas25ebee02007-09-25 15:22:24 +01001878config VFPv3
1879 bool
1880 depends on VFP
1881 default y if CPU_V7
1882
Catalin Marinasb5872db2008-01-10 19:16:17 +01001883config NEON
1884 bool "Advanced SIMD (NEON) Extension support"
1885 depends on VFPv3 && CPU_V7
1886 help
1887 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1888 Extension.
1889
Linus Torvalds1da177e2005-04-16 15:20:36 -07001890endmenu
1891
1892menu "Userspace binary formats"
1893
1894source "fs/Kconfig.binfmt"
1895
1896config ARTHUR
1897 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001898 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001899 help
1900 Say Y here to include the kernel code necessary if you want to run
1901 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1902 experimental; if this sounds frightening, say N and sleep in peace.
1903 You can also say M here to compile this support as a module (which
1904 will be called arthur).
1905
1906endmenu
1907
1908menu "Power management options"
1909
Russell Kingeceab4a2005-11-15 11:31:41 +00001910source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911
Johannes Bergf4cb5702007-12-08 02:14:00 +01001912config ARCH_SUSPEND_POSSIBLE
1913 def_bool y
1914
Linus Torvalds1da177e2005-04-16 15:20:36 -07001915endmenu
1916
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001917source "net/Kconfig"
1918
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001919source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001920
1921source "fs/Kconfig"
1922
Linus Torvalds1da177e2005-04-16 15:20:36 -07001923source "arch/arm/Kconfig.debug"
1924
1925source "security/Kconfig"
1926
1927source "crypto/Kconfig"
1928
1929source "lib/Kconfig"