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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
Rob Herringbf9dd362011-03-04 23:51:59 +010066config KTIME_SCALAR
67 bool
68 default y
69
Linus Walleijbc581772009-09-15 17:30:37 +010070config HAVE_TCM
71 bool
72 select GENERIC_ALLOCATOR
73
Russell Kinge119bff2010-01-10 17:23:29 +000074config HAVE_PROC_CPU
75 bool
76
Al Viro5ea81762007-02-11 15:41:31 +000077config NO_IOPORT
78 bool
Al Viro5ea81762007-02-11 15:41:31 +000079
Linus Torvalds1da177e2005-04-16 15:20:36 -070080config EISA
81 bool
82 ---help---
83 The Extended Industry Standard Architecture (EISA) bus was
84 developed as an open alternative to the IBM MicroChannel bus.
85
86 The EISA bus provided some of the features of the IBM MicroChannel
87 bus while maintaining backward compatibility with cards made for
88 the older ISA bus. The EISA bus saw limited use between 1988 and
89 1995 when it was made obsolete by the PCI bus.
90
91 Say Y here if you are building a kernel for an EISA-based machine.
92
93 Otherwise, say N.
94
95config SBUS
96 bool
97
98config MCA
99 bool
100 help
101 MicroChannel Architecture is found in some IBM PS/2 machines and
102 laptops. It is a bus system similar to PCI or ISA. See
103 <file:Documentation/mca.txt> (and especially the web page given
104 there) before attempting to build an MCA bus kernel.
105
Russell Kingf16fb1e2007-04-28 09:59:37 +0100106config STACKTRACE_SUPPORT
107 bool
108 default y
109
Nicolas Pitref76e9152008-04-24 01:31:46 -0400110config HAVE_LATENCYTOP_SUPPORT
111 bool
112 depends on !SMP
113 default y
114
Russell Kingf16fb1e2007-04-28 09:59:37 +0100115config LOCKDEP_SUPPORT
116 bool
117 default y
118
Russell King7ad1bcb2006-08-27 12:07:02 +0100119config TRACE_IRQFLAGS_SUPPORT
120 bool
121 default y
122
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100123config HARDIRQS_SW_RESEND
124 bool
125 default y
126
127config GENERIC_IRQ_PROBE
128 bool
129 default y
130
Nick Piggin95c354f2008-01-30 13:31:20 +0100131config GENERIC_LOCKBREAK
132 bool
133 default y
134 depends on SMP && PREEMPT
135
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136config RWSEM_GENERIC_SPINLOCK
137 bool
138 default y
139
140config RWSEM_XCHGADD_ALGORITHM
141 bool
142
David Howellsf0d1b0b2006-12-08 02:37:49 -0800143config ARCH_HAS_ILOG2_U32
144 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800145
146config ARCH_HAS_ILOG2_U64
147 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800148
Ben Dooks89c52ed2009-07-30 23:23:24 +0100149config ARCH_HAS_CPUFREQ
150 bool
151 help
152 Internal node to signify that the ARCH has CPUFREQ support
153 and that the relevant menu configurations are displayed for
154 it.
155
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100156config ARCH_HAS_CPU_IDLE_WAIT
157 def_bool y
158
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800159config GENERIC_HWEIGHT
160 bool
161 default y
162
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163config GENERIC_CALIBRATE_DELAY
164 bool
165 default y
166
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100167config ARCH_MAY_HAVE_PC_FDC
168 bool
169
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800170config ZONE_DMA
171 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800172
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800173config NEED_DMA_MAP_STATE
174 def_bool y
175
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176config GENERIC_ISA_DMA
177 bool
178
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179config FIQ
180 bool
181
Al Viro034d2f52005-12-19 16:27:59 -0500182config ARCH_MTD_XIP
183 bool
184
Hyok S. Choic760fc12006-03-27 15:18:50 +0100185config VECTORS_BASE
186 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900187 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100188 default DRAM_BASE if REMAP_VECTORS_TO_RAM
189 default 0x00000000
190 help
191 The base address of exception vectors.
192
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193source "init/Kconfig"
194
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700195source "kernel/Kconfig.freezer"
196
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197menu "System Type"
198
Hyok S. Choi3c427972009-07-24 12:35:00 +0100199config MMU
200 bool "MMU-based Paged Memory Management Support"
201 default y
202 help
203 Select if you want MMU-based virtualised addressing space
204 support by paged memory management. If unsure, say 'Y'.
205
Russell Kingccf50e22010-03-15 19:03:06 +0000206#
207# The "ARM system type" choice list is ordered alphabetically by option
208# text. Please add new entries in the option alphabetic order.
209#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210choice
211 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000212 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100214config ARCH_AAEC2000
215 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000216 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100217 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700218 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000219 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100220 help
221 This enables support for systems based on the Agilent AAEC-2000
222
223config ARCH_INTEGRATOR
224 bool "ARM Ltd. Integrator family"
225 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100226 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100227 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000228 select ICST
Russell King13edd862010-01-15 21:49:23 +0000229 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000230 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100231 help
232 Support for ARM's Integrator platform.
233
234config ARCH_REALVIEW
235 bool "ARM Ltd. RealView family"
236 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100237 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000238 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000239 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100240 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100241 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000242 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000243 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100244 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100245 help
246 This enables support for ARM Ltd RealView boards.
247
248config ARCH_VERSATILE
249 bool "ARM Ltd. Versatile family"
250 select ARM_AMBA
251 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100252 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000253 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000254 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100255 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100256 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000257 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000258 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100259 help
260 This enables support for ARM Ltd Versatile board.
261
Russell Kingceade892010-02-11 21:44:53 +0000262config ARCH_VEXPRESS
263 bool "ARM Ltd. Versatile Express family"
264 select ARCH_WANT_OPTIONAL_GPIOLIB
265 select ARM_AMBA
266 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100267 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000268 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000269 select HAVE_CLK
Russell King0af85dd2010-12-15 21:58:50 +0000270 select HAVE_SCHED_CLOCK
Russell Kingceade892010-02-11 21:44:53 +0000271 select ICST
272 select PLAT_VERSATILE
273 help
274 This enables support for the ARM Ltd Versatile Express boards.
275
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100276config ARCH_AT91
277 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100278 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700279 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100280 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100281 This enables support for systems based on the Atmel AT91RM9200,
282 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100283
Russell Kingccf50e22010-03-15 19:03:06 +0000284config ARCH_BCMRING
285 bool "Broadcom BCMRING"
286 depends on MMU
287 select CPU_V6
288 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100289 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000290 select GENERIC_CLOCKEVENTS
291 select ARCH_WANT_OPTIONAL_GPIOLIB
292 help
293 Support for Broadcom's BCMRing platform.
294
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100296 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000297 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000298 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000299 help
300 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300302config ARCH_CNS3XXX
303 bool "Cavium Networks CNS3XXX family"
304 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300305 select GENERIC_CLOCKEVENTS
306 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100307 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400308 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300309 help
310 Support for Cavium Networks CNS3XXX platform.
311
Russell King788c9702009-04-26 14:21:59 +0100312config ARCH_GEMINI
313 bool "Cortina Systems Gemini"
314 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100315 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000316 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100317 help
318 Support for the Cortina Systems Gemini family SoCs
319
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320config ARCH_EBSA110
321 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000322 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100323 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000324 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000325 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326 help
327 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000328 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 Ethernet interface, two PCMCIA sockets, two serial ports and a
330 parallel port.
331
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000332config ARCH_EP93XX
333 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000334 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000335 select ARM_AMBA
336 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100337 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700338 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100339 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000340 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000341 help
342 This enables support for the Cirrus EP93xx series of CPUs.
343
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344config ARCH_FOOTBRIDGE
345 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000346 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000348 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000349 help
350 Support for systems based on the DC21285 companion chip
351 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352
Russell King788c9702009-04-26 14:21:59 +0100353config ARCH_MXC
354 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100355 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100356 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100357 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100358 help
359 Support for Freescale MXC/iMX-based family of processors
360
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800361config ARCH_MXS
362 bool "Freescale MXS-based"
363 select GENERIC_CLOCKEVENTS
364 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100365 select CLKDEV_LOOKUP
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800366 help
367 Support for Freescale MXS-based family of processors
368
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100369config ARCH_STMP3XXX
370 bool "Freescale STMP3xxx"
371 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100372 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100373 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100374 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100375 select USB_ARCH_HAS_EHCI
376 help
377 Support for systems based on the Freescale 3xxx CPUs.
378
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100379config ARCH_NETX
380 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000381 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100382 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100383 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000384 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100385 This enables support for systems based on the Hilscher NetX Soc
386
387config ARCH_H720X
388 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000389 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100390 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000391 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100392 help
393 This enables support for systems based on the Hynix HMS720x
394
Russell King3b938be2007-05-12 11:25:44 +0100395config ARCH_IOP13XX
396 bool "IOP13xx-based"
397 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000398 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100399 select PLAT_IOP
400 select PCI
401 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100402 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100403 help
404 Support for Intel's IOP13XX (XScale) family of processors.
405
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100406config ARCH_IOP32X
407 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100408 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000409 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100410 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100411 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100412 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000413 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100414 Support for Intel's 80219 and IOP32X (XScale) family of
415 processors.
416
417config ARCH_IOP33X
418 bool "IOP33x-based"
419 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000420 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100421 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100422 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100423 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100424 help
425 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426
Russell King3b938be2007-05-12 11:25:44 +0100427config ARCH_IXP23XX
428 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100429 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000430 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100431 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000432 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100433 help
Russell King3b938be2007-05-12 11:25:44 +0100434 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435
436config ARCH_IXP2000
437 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100438 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000439 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100440 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000441 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000442 help
443 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444
Russell King3b938be2007-05-12 11:25:44 +0100445config ARCH_IXP4XX
446 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100447 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000448 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100449 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100450 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000451 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100452 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100453 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100454 help
Russell King3b938be2007-05-12 11:25:44 +0100455 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100456
Saeed Bisharaedabd382009-08-06 15:12:43 +0300457config ARCH_DOVE
458 bool "Marvell Dove"
459 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300460 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300461 select GENERIC_CLOCKEVENTS
462 select PLAT_ORION
463 help
464 Support for the Marvell Dove SoC 88AP510
465
Saeed Bishara651c74c2008-06-22 22:45:06 +0200466config ARCH_KIRKWOOD
467 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000468 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200469 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700470 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200471 select GENERIC_CLOCKEVENTS
472 select PLAT_ORION
473 help
474 Support for the following Marvell Kirkwood series SoCs:
475 88F6180, 88F6192 and 88F6281.
476
Russell King788c9702009-04-26 14:21:59 +0100477config ARCH_LOKI
478 bool "Marvell Loki (88RC8480)"
479 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100480 select GENERIC_CLOCKEVENTS
481 select PLAT_ORION
482 help
483 Support for the Marvell Loki (88RC8480) SoC.
484
Kevin Wells40805942010-07-27 08:49:04 -0700485config ARCH_LPC32XX
486 bool "NXP LPC32XX"
487 select CPU_ARM926T
488 select ARCH_REQUIRE_GPIOLIB
489 select HAVE_IDE
490 select ARM_AMBA
491 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100492 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700493 select GENERIC_TIME
494 select GENERIC_CLOCKEVENTS
495 help
496 Support for the NXP LPC32XX family of processors
497
Russell King788c9702009-04-26 14:21:59 +0100498config ARCH_MV78XX0
499 bool "Marvell MV78xx0"
500 select CPU_FEROCEON
501 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700502 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100503 select GENERIC_CLOCKEVENTS
504 select PLAT_ORION
505 help
506 Support for the following Marvell MV78xx0 series SoCs:
507 MV781x0, MV782x0.
508
509config ARCH_ORION5X
510 bool "Marvell Orion"
511 depends on MMU
512 select CPU_FEROCEON
513 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700514 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100515 select GENERIC_CLOCKEVENTS
516 select PLAT_ORION
517 help
518 Support for the following Marvell Orion 5x series SoCs:
519 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
520 Orion-2 (5281), Orion-1-90 (6183).
521
522config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500523 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100524 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100525 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100526 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100527 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000528 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100529 select TICK_ONESHOT
530 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400531 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100532 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500533 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100534
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100535config ARCH_KS8695
536 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000537 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100538 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000539 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100540 help
541 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
542 System-on-Chip devices.
543
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100544config ARCH_NS9XXX
545 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000546 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100547 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100548 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700549 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100550 help
551 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
552 System.
553
554 <http://www.digi.com/products/microprocessors/index.jsp>
555
Russell King788c9702009-04-26 14:21:59 +0100556config ARCH_W90X900
557 bool "Nuvoton W90X900 CPU"
558 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100559 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100560 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100561 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200562 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100563 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
564 At present, the w90x900 has been renamed nuc900, regarding
565 the ARM series product line, you can login the following
566 link address to know more.
567
568 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
569 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400570
wanzongshuna62e9032009-12-31 15:06:05 +0100571config ARCH_NUC93X
572 bool "Nuvoton NUC93X CPU"
573 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100574 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100575 help
576 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
577 low-power and high performance MPEG-4/JPEG multimedia controller chip.
578
Erik Gillingc5f80062010-01-21 16:53:02 -0800579config ARCH_TEGRA
580 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000581 select CLKDEV_LOOKUP
Erik Gillingc5f80062010-01-21 16:53:02 -0800582 select GENERIC_TIME
583 select GENERIC_CLOCKEVENTS
584 select GENERIC_GPIO
585 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000586 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800587 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700588 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800589 help
590 This enables support for NVIDIA Tegra based systems (Tegra APX,
591 Tegra 6xx and Tegra 2 series).
592
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100593config ARCH_PNX4008
594 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000595 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100596 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000597 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100598 help
599 This enables support for Philips PNX4008 mobile platform.
600
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700602 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100603 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500604 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100605 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100606 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700607 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100608 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000609 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000610 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800611 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800612 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000613 help
eric miao2c8086a2007-09-11 19:13:17 -0700614 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615
Russell King788c9702009-04-26 14:21:59 +0100616config ARCH_MSM
617 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500618 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800619 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700620 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800621 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800622 Support for Qualcomm MSM/QSD based systems. This runs on the
623 apps processor of the MSM/QSD and depends on a shared memory
624 interface to the modem processor which runs the baseband
625 stack and controls some vital subsystems
626 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800627
Magnus Dammc793c1b2010-02-05 11:14:49 +0000628config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900629 bool "Renesas SH-Mobile / R-Mobile"
630 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900631 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900632 select GENERIC_CLOCKEVENTS
633 select NO_IOPORT
634 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000635 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000636 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900637 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000638
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639config ARCH_RPC
640 bool "RiscPC"
641 select ARCH_ACORN
642 select FIQ
643 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100644 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100645 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000646 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000647 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100648 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000649 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650 help
651 On the Acorn Risc-PC, Linux can support the internal IDE disk and
652 CD-ROM interface, serial and parallel port, and the floppy drive.
653
654config ARCH_SA1100
655 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000656 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100657 select ISA
Russell King05944d72006-11-30 20:43:51 +0000658 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500659 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100660 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000661 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100662 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700663 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000664 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100665 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700666 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000667 help
668 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669
670config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900671 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800672 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100673 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700674 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000675 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900676 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 help
678 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
679 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000680 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681
Ben Dooks63b1f512010-04-30 16:32:26 +0900682 Note, the S3C2416 and the S3C2450 are so close that they even share
683 the same SoC ID code. This means that there is no seperate machine
684 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
685
Ben Dooksa08ab632008-10-21 14:06:39 +0100686config ARCH_S3C64XX
687 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000688 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900689 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900690 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100691 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900692 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000693 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100694 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900695 select ARCH_REQUIRE_GPIOLIB
696 select SAMSUNG_CLKSRC
697 select SAMSUNG_IRQ_VIC_TIMER
698 select SAMSUNG_IRQ_UART
699 select S3C_GPIO_TRACK
700 select S3C_GPIO_PULL_UPDOWN
701 select S3C_GPIO_CFG_S3C24XX
702 select S3C_GPIO_CFG_S3C64XX
703 select S3C_DEV_NAND
704 select USB_ARCH_HAS_OHCI
705 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900706 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900707 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100708 help
709 Samsung S3C64XX series based systems
710
Kukjin Kim49b7a492010-09-07 15:47:18 +0900711config ARCH_S5P64X0
712 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900713 select CPU_V6
714 select GENERIC_GPIO
715 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900716 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900717 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900718 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900719 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900720 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900721 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
722 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900723
Kukjin Kim550db7f2010-01-29 10:19:26 +0900724config ARCH_S5P6442
725 bool "Samsung S5P6442"
726 select CPU_V6
727 select GENERIC_GPIO
728 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900729 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900730 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900731 help
732 Samsung S5P6442 CPU based systems
733
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200734config ARCH_S5PC100
735 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900736 select GENERIC_GPIO
737 select HAVE_CLK
738 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100739 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900740 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900741 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900742 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900743 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900744 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200745 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900746
Kukjin Kim170f4e42010-02-24 16:40:44 +0900747config ARCH_S5PV210
748 bool "Samsung S5PV210/S5PC110"
749 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900750 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900751 select GENERIC_GPIO
752 select HAVE_CLK
753 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900754 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900755 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900756 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900757 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900758 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900759 help
760 Samsung S5PV210/S5PC110 series based systems
761
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900762config ARCH_S5PV310
763 bool "Samsung S5PV310/S5PC210"
764 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900765 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900766 select GENERIC_GPIO
767 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900768 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900769 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900770 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900771 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900772 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900773 help
774 Samsung S5PV310 series based systems
775
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776config ARCH_SHARK
777 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000778 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100779 select ISA
780 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100781 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100782 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000783 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000784 help
785 Support for the StrongARM based Digital DNARD machine, also known
786 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700787
Hans J. Koch83ef3332010-09-17 18:13:56 +0200788config ARCH_TCC_926
789 bool "Telechips TCC ARM926-based systems"
790 select CPU_ARM926T
791 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100792 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200793 select GENERIC_CLOCKEVENTS
794 help
795 Support for Telechips TCC ARM926-based systems.
796
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797config ARCH_LH7A40X
798 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000799 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100800 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000801 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802 help
803 Say Y here for systems based on one of the Sharp LH7A40X
804 System on a Chip processors. These CPUs include an ARM922T
805 core with a wide array of integrated devices for
806 hand-held and low-power applications.
807
Linus Walleijd98aac72009-04-27 10:21:46 +0100808config ARCH_U300
809 bool "ST-Ericsson U300 Series"
810 depends on MMU
811 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000812 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100813 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100814 select ARM_AMBA
815 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100816 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100817 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100818 select GENERIC_GPIO
819 help
820 Support for ST-Ericsson U300 series mobile platforms.
821
Russell Kingccf50e22010-03-15 19:03:06 +0000822config ARCH_U8500
823 bool "ST-Ericsson U8500 Series"
824 select CPU_V7
825 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000826 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100827 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100828 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100829 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000830 help
831 Support for ST-Ericsson's Ux500 architecture
832
833config ARCH_NOMADIK
834 bool "STMicroelectronics Nomadik"
835 select ARM_AMBA
836 select ARM_VIC
837 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100838 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000839 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000840 select ARCH_REQUIRE_GPIOLIB
841 help
842 Support for the Nomadik platform by ST-Ericsson
843
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100844config ARCH_DAVINCI
845 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100846 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700847 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100848 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700849 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100850 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700851 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530852 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100853 help
854 Support for TI's DaVinci platform.
855
Russell King3b938be2007-05-12 11:25:44 +0100856config ARCH_OMAP
857 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700858 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700859 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100860 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700861 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000862 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800863 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100864 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200865 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100866
viresh kumarcee37e52010-04-01 12:31:05 +0100867config PLAT_SPEAR
868 bool "ST SPEAr"
869 select ARM_AMBA
870 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100871 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100872 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100873 select HAVE_CLK
874 help
875 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
876
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877endchoice
878
Russell Kingccf50e22010-03-15 19:03:06 +0000879#
880# This is sorted alphabetically by mach-* pathname. However, plat-*
881# Kconfigs may be included either alphabetically (according to the
882# plat- suffix) or along side the corresponding mach-* source.
883#
Russell King95b8f202010-01-14 11:43:54 +0000884source "arch/arm/mach-aaec2000/Kconfig"
885
886source "arch/arm/mach-at91/Kconfig"
887
888source "arch/arm/mach-bcmring/Kconfig"
889
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890source "arch/arm/mach-clps711x/Kconfig"
891
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300892source "arch/arm/mach-cns3xxx/Kconfig"
893
Russell King95b8f202010-01-14 11:43:54 +0000894source "arch/arm/mach-davinci/Kconfig"
895
896source "arch/arm/mach-dove/Kconfig"
897
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000898source "arch/arm/mach-ep93xx/Kconfig"
899
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900source "arch/arm/mach-footbridge/Kconfig"
901
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200902source "arch/arm/mach-gemini/Kconfig"
903
Russell King95b8f202010-01-14 11:43:54 +0000904source "arch/arm/mach-h720x/Kconfig"
905
Linus Torvalds1da177e2005-04-16 15:20:36 -0700906source "arch/arm/mach-integrator/Kconfig"
907
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100908source "arch/arm/mach-iop32x/Kconfig"
909
910source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911
Dan Williams285f5fa2006-12-07 02:59:39 +0100912source "arch/arm/mach-iop13xx/Kconfig"
913
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914source "arch/arm/mach-ixp4xx/Kconfig"
915
916source "arch/arm/mach-ixp2000/Kconfig"
917
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100918source "arch/arm/mach-ixp23xx/Kconfig"
919
Russell King95b8f202010-01-14 11:43:54 +0000920source "arch/arm/mach-kirkwood/Kconfig"
921
922source "arch/arm/mach-ks8695/Kconfig"
923
924source "arch/arm/mach-lh7a40x/Kconfig"
925
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200926source "arch/arm/mach-loki/Kconfig"
927
Kevin Wells40805942010-07-27 08:49:04 -0700928source "arch/arm/mach-lpc32xx/Kconfig"
929
Russell King95b8f202010-01-14 11:43:54 +0000930source "arch/arm/mach-msm/Kconfig"
931
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200932source "arch/arm/mach-mv78xx0/Kconfig"
933
Russell King95b8f202010-01-14 11:43:54 +0000934source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800936source "arch/arm/mach-mxs/Kconfig"
937
Russell King95b8f202010-01-14 11:43:54 +0000938source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800939
Russell King95b8f202010-01-14 11:43:54 +0000940source "arch/arm/mach-nomadik/Kconfig"
941source "arch/arm/plat-nomadik/Kconfig"
942
943source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944
Russell Kingd91a8912010-02-04 18:13:17 +0000945source "arch/arm/mach-nuc93x/Kconfig"
946
Tony Lindgrend48af152005-07-10 19:58:17 +0100947source "arch/arm/plat-omap/Kconfig"
948
949source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950
Tony Lindgren1dbae812005-11-10 14:26:51 +0000951source "arch/arm/mach-omap2/Kconfig"
952
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400953source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400954
Russell King95b8f202010-01-14 11:43:54 +0000955source "arch/arm/mach-pxa/Kconfig"
956source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
Russell King95b8f202010-01-14 11:43:54 +0000958source "arch/arm/mach-mmp/Kconfig"
959
960source "arch/arm/mach-realview/Kconfig"
961
962source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300963
Ben Dookscf383672009-11-10 00:14:58 +0000964source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100965source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900966source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100967
viresh kumarcee37e52010-04-01 12:31:05 +0100968source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100969
Hans J. Koch83ef3332010-09-17 18:13:56 +0200970source "arch/arm/plat-tcc/Kconfig"
971
Ben Dooksa21765a2007-02-11 18:31:01 +0100972if ARCH_S3C2410
973source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100975source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900976source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100977source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100978source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100979endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980
Ben Dooksa08ab632008-10-21 14:06:39 +0100981if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900982source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100983endif
984
Kukjin Kim49b7a492010-09-07 15:47:18 +0900985source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900986
Kukjin Kim550db7f2010-01-29 10:19:26 +0900987source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100988
Byungho Min5a7652f2009-06-23 21:39:42 +0900989source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900990
Kukjin Kim170f4e42010-02-24 16:40:44 +0900991source "arch/arm/mach-s5pv210/Kconfig"
992
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900993source "arch/arm/mach-s5pv310/Kconfig"
994
Russell King882d01f2010-03-02 23:40:15 +0000995source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996
Russell King882d01f2010-03-02 23:40:15 +0000997source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800998
Erik Gillingc5f80062010-01-21 16:53:02 -0800999source "arch/arm/mach-tegra/Kconfig"
1000
Russell King95b8f202010-01-14 11:43:54 +00001001source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001002
Russell King95b8f202010-01-14 11:43:54 +00001003source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004
1005source "arch/arm/mach-versatile/Kconfig"
1006
Russell Kingceade892010-02-11 21:44:53 +00001007source "arch/arm/mach-vexpress/Kconfig"
1008
wanzongshun7ec80dd2008-12-03 03:55:38 +01001009source "arch/arm/mach-w90x900/Kconfig"
1010
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011# Definitions to make life easier
1012config ARCH_ACORN
1013 bool
1014
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001015config PLAT_IOP
1016 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001017 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001018 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001019
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001020config PLAT_ORION
1021 bool
Russell Kingf06a1622010-12-15 21:55:06 +00001022 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001023
Eric Miaobd5ce432009-01-20 12:06:01 +08001024config PLAT_PXA
1025 bool
1026
Russell Kingf4b8b312010-01-14 12:48:06 +00001027config PLAT_VERSATILE
1028 bool
1029
Russell Kinge3887712010-01-14 13:30:16 +00001030config ARM_TIMER_SP804
1031 bool
1032
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033source arch/arm/mm/Kconfig
1034
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001035config IWMMXT
1036 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001037 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1038 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001039 help
1040 Enable support for iWMMXt context switching at run time if
1041 running on a CPU that supports it.
1042
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1044config XSCALE_PMU
1045 bool
1046 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1047 default y
1048
Jamie Iles0f4f0672010-02-02 20:23:15 +01001049config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001050 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1051 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001052 default y
1053 bool
1054
eric miao52108642010-12-13 09:42:34 +01001055config MULTI_IRQ_HANDLER
1056 bool
1057 help
1058 Allow each machine to specify it's own IRQ handler at run time.
1059
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001060if !MMU
1061source "arch/arm/Kconfig-nommu"
1062endif
1063
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001064config ARM_ERRATA_411920
1065 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001066 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001067 help
1068 Invalidation of the Instruction Cache operation can
1069 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1070 It does not affect the MPCore. This option enables the ARM Ltd.
1071 recommended workaround.
1072
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001073config ARM_ERRATA_430973
1074 bool "ARM errata: Stale prediction on replaced interworking branch"
1075 depends on CPU_V7
1076 help
1077 This option enables the workaround for the 430973 Cortex-A8
1078 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1079 interworking branch is replaced with another code sequence at the
1080 same virtual address, whether due to self-modifying code or virtual
1081 to physical address re-mapping, Cortex-A8 does not recover from the
1082 stale interworking branch prediction. This results in Cortex-A8
1083 executing the new code sequence in the incorrect ARM or Thumb state.
1084 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1085 and also flushes the branch target cache at every context switch.
1086 Note that setting specific bits in the ACTLR register may not be
1087 available in non-secure mode.
1088
Catalin Marinas855c5512009-04-30 17:06:15 +01001089config ARM_ERRATA_458693
1090 bool "ARM errata: Processor deadlock when a false hazard is created"
1091 depends on CPU_V7
1092 help
1093 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1094 erratum. For very specific sequences of memory operations, it is
1095 possible for a hazard condition intended for a cache line to instead
1096 be incorrectly associated with a different cache line. This false
1097 hazard might then cause a processor deadlock. The workaround enables
1098 the L1 caching of the NEON accesses and disables the PLD instruction
1099 in the ACTLR register. Note that setting specific bits in the ACTLR
1100 register may not be available in non-secure mode.
1101
Catalin Marinas0516e462009-04-30 17:06:20 +01001102config ARM_ERRATA_460075
1103 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1104 depends on CPU_V7
1105 help
1106 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1107 erratum. Any asynchronous access to the L2 cache may encounter a
1108 situation in which recent store transactions to the L2 cache are lost
1109 and overwritten with stale memory contents from external memory. The
1110 workaround disables the write-allocate mode for the L2 cache via the
1111 ACTLR register. Note that setting specific bits in the ACTLR register
1112 may not be available in non-secure mode.
1113
Will Deacon9f050272010-09-14 09:51:43 +01001114config ARM_ERRATA_742230
1115 bool "ARM errata: DMB operation may be faulty"
1116 depends on CPU_V7 && SMP
1117 help
1118 This option enables the workaround for the 742230 Cortex-A9
1119 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1120 between two write operations may not ensure the correct visibility
1121 ordering of the two writes. This workaround sets a specific bit in
1122 the diagnostic register of the Cortex-A9 which causes the DMB
1123 instruction to behave as a DSB, ensuring the correct behaviour of
1124 the two writes.
1125
Will Deacona672e992010-09-14 09:53:02 +01001126config ARM_ERRATA_742231
1127 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1128 depends on CPU_V7 && SMP
1129 help
1130 This option enables the workaround for the 742231 Cortex-A9
1131 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1132 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1133 accessing some data located in the same cache line, may get corrupted
1134 data due to bad handling of the address hazard when the line gets
1135 replaced from one of the CPUs at the same time as another CPU is
1136 accessing it. This workaround sets specific bits in the diagnostic
1137 register of the Cortex-A9 which reduces the linefill issuing
1138 capabilities of the processor.
1139
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001140config PL310_ERRATA_588369
1141 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001142 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001143 help
1144 The PL310 L2 cache controller implements three types of Clean &
1145 Invalidate maintenance operations: by Physical Address
1146 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1147 They are architecturally defined to behave as the execution of a
1148 clean operation followed immediately by an invalidate operation,
1149 both performing to the same memory location. This functionality
1150 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001151 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001152
1153config ARM_ERRATA_720789
1154 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1155 depends on CPU_V7 && SMP
1156 help
1157 This option enables the workaround for the 720789 Cortex-A9 (prior to
1158 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1159 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1160 As a consequence of this erratum, some TLB entries which should be
1161 invalidated are not, resulting in an incoherency in the system page
1162 tables. The workaround changes the TLB flushing routines to invalidate
1163 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001164
1165config ARM_ERRATA_743622
1166 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1167 depends on CPU_V7
1168 help
1169 This option enables the workaround for the 743622 Cortex-A9
1170 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1171 optimisation in the Cortex-A9 Store Buffer may lead to data
1172 corruption. This workaround sets a specific bit in the diagnostic
1173 register of the Cortex-A9 which disables the Store Buffer
1174 optimisation, preventing the defect from occurring. This has no
1175 visible impact on the overall performance or power consumption of the
1176 processor.
1177
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001178config PL310_ERRATA_727915
1179 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1180 depends on CACHE_L2X0
1181 help
1182 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1183 operation (offset 0x7FC). This operation runs in background so that
1184 PL310 can handle normal accesses while it is in progress. Under very
1185 rare circumstances, due to this erratum, write data can be lost when
1186 PL310 treats a cacheable write transaction during a Clean &
1187 Invalidate by Way operation.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188endmenu
1189
1190source "arch/arm/common/Kconfig"
1191
Linus Torvalds1da177e2005-04-16 15:20:36 -07001192menu "Bus support"
1193
1194config ARM_AMBA
1195 bool
1196
1197config ISA
1198 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001199 help
1200 Find out whether you have ISA slots on your motherboard. ISA is the
1201 name of a bus system, i.e. the way the CPU talks to the other stuff
1202 inside your box. Other bus systems are PCI, EISA, MicroChannel
1203 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1204 newer boards don't support it. If you have ISA, say Y, otherwise N.
1205
Russell King065909b2006-01-04 15:44:16 +00001206# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001207config ISA_DMA
1208 bool
Russell King065909b2006-01-04 15:44:16 +00001209 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210
Russell King065909b2006-01-04 15:44:16 +00001211# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001212config ISA_DMA_API
1213 bool
Al Viro5cae8412005-05-04 05:39:22 +01001214
Linus Torvalds1da177e2005-04-16 15:20:36 -07001215config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001216 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217 help
1218 Find out whether you have a PCI motherboard. PCI is the name of a
1219 bus system, i.e. the way the CPU talks to the other stuff inside
1220 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1221 VESA. If you have PCI, say Y, otherwise N.
1222
Anton Vorontsov52882172010-04-19 13:20:49 +01001223config PCI_DOMAINS
1224 bool
1225 depends on PCI
1226
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001227config PCI_NANOENGINE
1228 bool "BSE nanoEngine PCI support"
1229 depends on SA1100_NANOENGINE
1230 help
1231 Enable PCI on the BSE nanoEngine board.
1232
Matthew Wilcox36e23592007-07-10 10:54:40 -06001233config PCI_SYSCALL
1234 def_bool PCI
1235
Linus Torvalds1da177e2005-04-16 15:20:36 -07001236# Select the host bridge type
1237config PCI_HOST_VIA82C505
1238 bool
1239 depends on PCI && ARCH_SHARK
1240 default y
1241
Mike Rapoporta0113a92007-11-25 08:55:34 +01001242config PCI_HOST_ITE8152
1243 bool
1244 depends on PCI && MACH_ARMCORE
1245 default y
1246 select DMABOUNCE
1247
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248source "drivers/pci/Kconfig"
1249
1250source "drivers/pcmcia/Kconfig"
1251
1252endmenu
1253
1254menu "Kernel Features"
1255
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001256source "kernel/time/Kconfig"
1257
Linus Torvalds1da177e2005-04-16 15:20:36 -07001258config SMP
1259 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001260 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001261 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001262 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001263 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1264 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001265 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001266 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001267 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268 help
1269 This enables support for systems with more than one CPU. If you have
1270 a system with only one CPU, like most personal computers, say N. If
1271 you have a system with more than one CPU, say Y.
1272
1273 If you say N here, the kernel will run on single and multiprocessor
1274 machines, but will use only one CPU of a multiprocessor machine. If
1275 you say Y here, the kernel will run on many, but not all, single
1276 processor machines. On a single processor machine, the kernel will
1277 run faster if you say N here.
1278
Adrian Bunk03502fa2008-02-03 15:50:21 +02001279 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001280 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001281 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001282
1283 If you don't know what to do here, say N.
1284
Russell Kingf00ec482010-09-04 10:47:48 +01001285config SMP_ON_UP
1286 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1287 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001288 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001289 default y
1290 help
1291 SMP kernels contain instructions which fail on non-SMP processors.
1292 Enabling this option allows the kernel to modify itself to make
1293 these instructions safe. Disabling it allows about 1K of space
1294 savings.
1295
1296 If you don't know what to do here, say Y.
1297
Russell Kinga8cbcd92009-05-16 11:51:14 +01001298config HAVE_ARM_SCU
1299 bool
1300 depends on SMP
1301 help
1302 This option enables support for the ARM system coherency unit
1303
Russell Kingf32f4ce2009-05-16 12:14:21 +01001304config HAVE_ARM_TWD
1305 bool
1306 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001307 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001308 help
1309 This options enables support for the ARM timer and watchdog unit
1310
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001311choice
1312 prompt "Memory split"
1313 default VMSPLIT_3G
1314 help
1315 Select the desired split between kernel and user memory.
1316
1317 If you are not absolutely sure what you are doing, leave this
1318 option alone!
1319
1320 config VMSPLIT_3G
1321 bool "3G/1G user/kernel split"
1322 config VMSPLIT_2G
1323 bool "2G/2G user/kernel split"
1324 config VMSPLIT_1G
1325 bool "1G/3G user/kernel split"
1326endchoice
1327
1328config PAGE_OFFSET
1329 hex
1330 default 0x40000000 if VMSPLIT_1G
1331 default 0x80000000 if VMSPLIT_2G
1332 default 0xC0000000
1333
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334config NR_CPUS
1335 int "Maximum number of CPUs (2-32)"
1336 range 2 32
1337 depends on SMP
1338 default "4"
1339
Russell Kinga054a812005-11-02 22:24:33 +00001340config HOTPLUG_CPU
1341 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1342 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001343 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001344 help
1345 Say Y here to experiment with turning CPUs off and on. CPUs
1346 can be controlled through /sys/devices/system/cpu.
1347
Russell King37ee16a2005-11-08 19:08:05 +00001348config LOCAL_TIMERS
1349 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001350 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001351 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001352 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001353 help
1354 Enable support for local timers on SMP platforms, rather then the
1355 legacy IPI broadcast method. Local timers allows the system
1356 accounting to be spread across the timer interval, preventing a
1357 "thundering herd" at every timer tick.
1358
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001359source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001360
Russell Kingf8065812006-03-02 22:41:59 +00001361config HZ
1362 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001363 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001364 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001365 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001366 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001367 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001368 default 100
1369
Catalin Marinas16c79652009-07-24 12:33:02 +01001370config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001371 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Dave Martin6e6fc992010-12-13 21:53:53 +01001372 depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001373 select AEABI
1374 select ARM_ASM_UNIFIED
1375 help
1376 By enabling this option, the kernel will be compiled in
1377 Thumb-2 mode. A compiler/assembler that understand the unified
1378 ARM-Thumb syntax is needed.
1379
1380 If unsure, say N.
1381
Catalin Marinas0becb082009-07-24 12:32:53 +01001382config ARM_ASM_UNIFIED
1383 bool
1384
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001385config AEABI
1386 bool "Use the ARM EABI to compile the kernel"
1387 help
1388 This option allows for the kernel to be compiled using the latest
1389 ARM ABI (aka EABI). This is only useful if you are using a user
1390 space environment that is also compiled with EABI.
1391
1392 Since there are major incompatibilities between the legacy ABI and
1393 EABI, especially with regard to structure member alignment, this
1394 option also changes the kernel syscall calling convention to
1395 disambiguate both ABIs and allow for backward compatibility support
1396 (selected with CONFIG_OABI_COMPAT).
1397
1398 To use this you need GCC version 4.0.0 or later.
1399
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001400config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001401 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001402 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001403 default y
1404 help
1405 This option preserves the old syscall interface along with the
1406 new (ARM EABI) one. It also provides a compatibility layer to
1407 intercept syscalls that have structure arguments which layout
1408 in memory differs between the legacy ABI and the new ARM EABI
1409 (only for non "thumb" binaries). This option adds a tiny
1410 overhead to all syscalls and produces a slightly larger kernel.
1411 If you know you'll be using only pure EABI user space then you
1412 can say N here. If this option is not selected and you attempt
1413 to execute a legacy ABI binary then the result will be
1414 UNPREDICTABLE (in fact it can be predicted that it won't work
1415 at all). If in doubt say Y.
1416
Mel Gormaneb335752009-05-13 17:34:48 +01001417config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001418 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001419
Russell King05944d72006-11-30 20:43:51 +00001420config ARCH_SPARSEMEM_ENABLE
1421 bool
1422
Russell King07a2f732008-10-01 21:39:58 +01001423config ARCH_SPARSEMEM_DEFAULT
1424 def_bool ARCH_SPARSEMEM_ENABLE
1425
Russell King05944d72006-11-30 20:43:51 +00001426config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001427 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001428
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001429config HIGHMEM
1430 bool "High Memory Support (EXPERIMENTAL)"
1431 depends on MMU && EXPERIMENTAL
1432 help
1433 The address space of ARM processors is only 4 Gigabytes large
1434 and it has to accommodate user address space, kernel address
1435 space as well as some memory mapped IO. That means that, if you
1436 have a large amount of physical memory and/or IO, not all of the
1437 memory can be "permanently mapped" by the kernel. The physical
1438 memory that is not permanently mapped is called "high memory".
1439
1440 Depending on the selected kernel/user memory split, minimum
1441 vmalloc space and actual amount of RAM, you may not need this
1442 option which should result in a slightly faster kernel.
1443
1444 If unsure, say n.
1445
Russell King65cec8e2009-08-17 20:02:06 +01001446config HIGHPTE
1447 bool "Allocate 2nd-level pagetables from highmem"
1448 depends on HIGHMEM
1449 depends on !OUTER_CACHE
1450
Jamie Iles1b8873a2010-02-02 20:25:44 +01001451config HW_PERF_EVENTS
1452 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001453 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001454 default y
1455 help
1456 Enable hardware performance counter support for perf events. If
1457 disabled, perf events will use software events only.
1458
Dave Hansen3f22ab22005-06-23 00:07:43 -07001459source "mm/Kconfig"
1460
Magnus Dammc1b2d972010-07-05 10:00:11 +01001461config FORCE_MAX_ZONEORDER
1462 int "Maximum zone order" if ARCH_SHMOBILE
1463 range 11 64 if ARCH_SHMOBILE
1464 default "9" if SA1111
1465 default "11"
1466 help
1467 The kernel memory allocator divides physically contiguous memory
1468 blocks into "zones", where each zone is a power of two number of
1469 pages. This option selects the largest power of two that the kernel
1470 keeps in the memory allocator. If you need to allocate very large
1471 blocks of physically contiguous memory, then you may need to
1472 increase this value.
1473
1474 This config option is actually maximum order plus one. For example,
1475 a value of 11 means that the largest free memory block is 2^10 pages.
1476
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477config LEDS
1478 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001479 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001480 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001481 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1482 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001483 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001484 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001485 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486 help
1487 If you say Y here, the LEDs on your machine will be used
1488 to provide useful information about your current system status.
1489
1490 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1491 be able to select which LEDs are active using the options below. If
1492 you are compiling a kernel for the EBSA-110 or the LART however, the
1493 red LED will simply flash regularly to indicate that the system is
1494 still functional. It is safe to say Y here if you have a CATS
1495 system, but the driver will do nothing.
1496
1497config LEDS_TIMER
1498 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001499 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1500 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001501 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001502 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001503 default y if ARCH_EBSA110
1504 help
1505 If you say Y here, one of the system LEDs (the green one on the
1506 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1507 will flash regularly to indicate that the system is still
1508 operational. This is mainly useful to kernel hackers who are
1509 debugging unstable kernels.
1510
1511 The LART uses the same LED for both Timer LED and CPU usage LED
1512 functions. You may choose to use both, but the Timer LED function
1513 will overrule the CPU usage LED.
1514
1515config LEDS_CPU
1516 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001517 !ARCH_OMAP) \
1518 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1519 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001520 depends on LEDS
1521 help
1522 If you say Y here, the red LED will be used to give a good real
1523 time indication of CPU usage, by lighting whenever the idle task
1524 is not currently executing.
1525
1526 The LART uses the same LED for both Timer LED and CPU usage LED
1527 functions. You may choose to use both, but the Timer LED function
1528 will overrule the CPU usage LED.
1529
1530config ALIGNMENT_TRAP
1531 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001532 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001533 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001534 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001535 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001536 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001537 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1538 address divisible by 4. On 32-bit ARM processors, these non-aligned
1539 fetch/store instructions will be emulated in software if you say
1540 here, which has a severe performance impact. This is necessary for
1541 correct operation of some network protocols. With an IP-only
1542 configuration it is safe to say N, otherwise say Y.
1543
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001544config UACCESS_WITH_MEMCPY
1545 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1546 depends on MMU && EXPERIMENTAL
1547 default y if CPU_FEROCEON
1548 help
1549 Implement faster copy_to_user and clear_user methods for CPU
1550 cores where a 8-word STM instruction give significantly higher
1551 memory write throughput than a sequence of individual 32bit stores.
1552
1553 A possible side effect is a slight increase in scheduling latency
1554 between threads sharing the same address space if they invoke
1555 such copy operations with large buffers.
1556
1557 However, if the CPU data cache is using a write-allocate mode,
1558 this option is unlikely to provide any performance gain.
1559
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001560config SECCOMP
1561 bool
1562 prompt "Enable seccomp to safely compute untrusted bytecode"
1563 ---help---
1564 This kernel feature is useful for number crunching applications
1565 that may need to compute untrusted bytecode during their
1566 execution. By using pipes or other transports made available to
1567 the process as file descriptors supporting the read/write
1568 syscalls, it's possible to isolate those applications in
1569 their own address space using seccomp. Once seccomp is
1570 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1571 and the task is only allowed to execute a few safe syscalls
1572 defined by each seccomp mode.
1573
Nicolas Pitrec743f382010-05-24 23:55:42 -04001574config CC_STACKPROTECTOR
1575 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001576 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001577 help
1578 This option turns on the -fstack-protector GCC feature. This
1579 feature puts, at the beginning of functions, a canary value on
1580 the stack just before the return address, and validates
1581 the value just before actually returning. Stack based buffer
1582 overflows (that need to overwrite this return address) now also
1583 overwrite the canary, which gets detected and the attack is then
1584 neutralized via a kernel panic.
1585 This feature requires gcc version 4.2 or above.
1586
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001587config DEPRECATED_PARAM_STRUCT
1588 bool "Provide old way to pass kernel parameters"
1589 help
1590 This was deprecated in 2001 and announced to live on for 5 years.
1591 Some old boot loaders still use this way.
1592
Linus Torvalds1da177e2005-04-16 15:20:36 -07001593endmenu
1594
1595menu "Boot options"
1596
1597# Compressed boot loader in ROM. Yes, we really want to ask about
1598# TEXT and BSS so we preserve their values in the config files.
1599config ZBOOT_ROM_TEXT
1600 hex "Compressed ROM boot loader base address"
1601 default "0"
1602 help
1603 The physical address at which the ROM-able zImage is to be
1604 placed in the target. Platforms which normally make use of
1605 ROM-able zImage formats normally set this to a suitable
1606 value in their defconfig file.
1607
1608 If ZBOOT_ROM is not enabled, this has no effect.
1609
1610config ZBOOT_ROM_BSS
1611 hex "Compressed ROM boot loader BSS address"
1612 default "0"
1613 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001614 The base address of an area of read/write memory in the target
1615 for the ROM-able zImage which must be available while the
1616 decompressor is running. It must be large enough to hold the
1617 entire decompressed kernel plus an additional 128 KiB.
1618 Platforms which normally make use of ROM-able zImage formats
1619 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001620
1621 If ZBOOT_ROM is not enabled, this has no effect.
1622
1623config ZBOOT_ROM
1624 bool "Compressed boot loader in ROM/flash"
1625 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1626 help
1627 Say Y here if you intend to execute your compressed kernel image
1628 (zImage) directly from ROM or flash. If unsure, say N.
1629
1630config CMDLINE
1631 string "Default kernel command string"
1632 default ""
1633 help
1634 On some architectures (EBSA110 and CATS), there is currently no way
1635 for the boot loader to pass arguments to the kernel. For these
1636 architectures, you should supply some command-line options at build
1637 time by entering them here. As a minimum, you should specify the
1638 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1639
Alexander Holler92d20402010-02-16 19:04:53 +01001640config CMDLINE_FORCE
1641 bool "Always use the default kernel command string"
1642 depends on CMDLINE != ""
1643 help
1644 Always use the default kernel command string, even if the boot
1645 loader passes other arguments to the kernel.
1646 This is useful if you cannot or don't want to change the
1647 command-line options your boot loader passes to the kernel.
1648
1649 If unsure, say N.
1650
Linus Torvalds1da177e2005-04-16 15:20:36 -07001651config XIP_KERNEL
1652 bool "Kernel Execute-In-Place from ROM"
1653 depends on !ZBOOT_ROM
1654 help
1655 Execute-In-Place allows the kernel to run from non-volatile storage
1656 directly addressable by the CPU, such as NOR flash. This saves RAM
1657 space since the text section of the kernel is not loaded from flash
1658 to RAM. Read-write sections, such as the data section and stack,
1659 are still copied to RAM. The XIP kernel is not compressed since
1660 it has to run directly from flash, so it will take more space to
1661 store it. The flash address used to link the kernel object files,
1662 and for storing it, is configuration dependent. Therefore, if you
1663 say Y here, you must know the proper physical address where to
1664 store the kernel image depending on your own flash memory usage.
1665
1666 Also note that the make target becomes "make xipImage" rather than
1667 "make zImage" or "make Image". The final kernel binary to put in
1668 ROM memory will be arch/arm/boot/xipImage.
1669
1670 If unsure, say N.
1671
1672config XIP_PHYS_ADDR
1673 hex "XIP Kernel Physical Location"
1674 depends on XIP_KERNEL
1675 default "0x00080000"
1676 help
1677 This is the physical address in your flash memory the kernel will
1678 be linked for and stored to. This address is dependent on your
1679 own flash usage.
1680
Richard Purdiec587e4a2007-02-06 21:29:00 +01001681config KEXEC
1682 bool "Kexec system call (EXPERIMENTAL)"
1683 depends on EXPERIMENTAL
1684 help
1685 kexec is a system call that implements the ability to shutdown your
1686 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001687 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001688 you can start any kernel with it, not just Linux.
1689
1690 It is an ongoing process to be certain the hardware in a machine
1691 is properly shutdown, so do not be surprised if this code does not
1692 initially work for you. It may help to enable device hotplugging
1693 support.
1694
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001695config ATAGS_PROC
1696 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001697 depends on KEXEC
1698 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001699 help
1700 Should the atags used to boot the kernel be exported in an "atags"
1701 file in procfs. Useful with kexec.
1702
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001703config CRASH_DUMP
1704 bool "Build kdump crash kernel (EXPERIMENTAL)"
1705 depends on EXPERIMENTAL
1706 help
1707 Generate crash dump after being started by kexec. This should
1708 be normally only set in special crash dump kernels which are
1709 loaded in the main kernel with kexec-tools into a specially
1710 reserved region and then later executed after a crash by
1711 kdump/kexec. The crash dump kernel must be compiled to a
1712 memory address not used by the main kernel
1713
1714 For more details see Documentation/kdump/kdump.txt
1715
Eric Miaoe69edc792010-07-05 15:56:50 +02001716config AUTO_ZRELADDR
1717 bool "Auto calculation of the decompressed kernel image address"
1718 depends on !ZBOOT_ROM && !ARCH_U300
1719 help
1720 ZRELADDR is the physical address where the decompressed kernel
1721 image will be placed. If AUTO_ZRELADDR is selected, the address
1722 will be determined at run-time by masking the current IP with
1723 0xf8000000. This assumes the zImage being placed in the first 128MB
1724 from start of memory.
1725
Linus Torvalds1da177e2005-04-16 15:20:36 -07001726endmenu
1727
Russell Kingac9d7ef2008-08-18 17:26:00 +01001728menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001729
Ben Dooks89c52ed2009-07-30 23:23:24 +01001730if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001731
1732source "drivers/cpufreq/Kconfig"
1733
Yong Shen64f102b2010-10-21 21:18:59 +08001734config CPU_FREQ_IMX
1735 tristate "CPUfreq driver for i.MX CPUs"
1736 depends on ARCH_MXC && CPU_FREQ
1737 help
1738 This enables the CPUfreq driver for i.MX CPUs.
1739
Linus Torvalds1da177e2005-04-16 15:20:36 -07001740config CPU_FREQ_SA1100
1741 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001742
1743config CPU_FREQ_SA1110
1744 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745
1746config CPU_FREQ_INTEGRATOR
1747 tristate "CPUfreq driver for ARM Integrator CPUs"
1748 depends on ARCH_INTEGRATOR && CPU_FREQ
1749 default y
1750 help
1751 This enables the CPUfreq driver for ARM Integrator CPUs.
1752
1753 For details, take a look at <file:Documentation/cpu-freq>.
1754
1755 If in doubt, say Y.
1756
Russell King9e2697f2007-12-14 13:30:14 +00001757config CPU_FREQ_PXA
1758 bool
1759 depends on CPU_FREQ && ARCH_PXA && PXA25x
1760 default y
1761 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1762
Mark Brownb3748dd2009-06-15 11:23:20 +01001763config CPU_FREQ_S3C64XX
1764 bool "CPUfreq support for Samsung S3C64XX CPUs"
1765 depends on CPU_FREQ && CPU_S3C6410
1766
Ben Dooks9d56c022009-07-30 23:23:25 +01001767config CPU_FREQ_S3C
1768 bool
1769 help
1770 Internal configuration node for common cpufreq on Samsung SoC
1771
1772config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001773 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001774 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1775 select CPU_FREQ_S3C
1776 help
1777 This enables the CPUfreq driver for the Samsung S3C24XX family
1778 of CPUs.
1779
1780 For details, take a look at <file:Documentation/cpu-freq>.
1781
1782 If in doubt, say N.
1783
1784config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001785 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001786 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1787 help
1788 Compile in support for changing the PLL frequency from the
1789 S3C24XX series CPUfreq driver. The PLL takes time to settle
1790 after a frequency change, so by default it is not enabled.
1791
1792 This also means that the PLL tables for the selected CPU(s) will
1793 be built which may increase the size of the kernel image.
1794
1795config CPU_FREQ_S3C24XX_DEBUG
1796 bool "Debug CPUfreq Samsung driver core"
1797 depends on CPU_FREQ_S3C24XX
1798 help
1799 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1800
1801config CPU_FREQ_S3C24XX_IODEBUG
1802 bool "Debug CPUfreq Samsung driver IO timing"
1803 depends on CPU_FREQ_S3C24XX
1804 help
1805 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1806
Ben Dookse6d197a2009-07-30 23:23:42 +01001807config CPU_FREQ_S3C24XX_DEBUGFS
1808 bool "Export debugfs for CPUFreq"
1809 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1810 help
1811 Export status information via debugfs.
1812
Linus Torvalds1da177e2005-04-16 15:20:36 -07001813endif
1814
Russell Kingac9d7ef2008-08-18 17:26:00 +01001815source "drivers/cpuidle/Kconfig"
1816
1817endmenu
1818
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819menu "Floating point emulation"
1820
1821comment "At least one emulation must be selected"
1822
1823config FPE_NWFPE
1824 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001825 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001826 ---help---
1827 Say Y to include the NWFPE floating point emulator in the kernel.
1828 This is necessary to run most binaries. Linux does not currently
1829 support floating point hardware so you need to say Y here even if
1830 your machine has an FPA or floating point co-processor podule.
1831
1832 You may say N here if you are going to load the Acorn FPEmulator
1833 early in the bootup.
1834
1835config FPE_NWFPE_XP
1836 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001837 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001838 help
1839 Say Y to include 80-bit support in the kernel floating-point
1840 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1841 Note that gcc does not generate 80-bit operations by default,
1842 so in most cases this option only enlarges the size of the
1843 floating point emulator without any good reason.
1844
1845 You almost surely want to say N here.
1846
1847config FPE_FASTFPE
1848 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001849 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850 ---help---
1851 Say Y here to include the FAST floating point emulator in the kernel.
1852 This is an experimental much faster emulator which now also has full
1853 precision for the mantissa. It does not support any exceptions.
1854 It is very simple, and approximately 3-6 times faster than NWFPE.
1855
1856 It should be sufficient for most programs. It may be not suitable
1857 for scientific calculations, but you have to check this for yourself.
1858 If you do not feel you need a faster FP emulation you should better
1859 choose NWFPE.
1860
1861config VFP
1862 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001863 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001864 help
1865 Say Y to include VFP support code in the kernel. This is needed
1866 if your hardware includes a VFP unit.
1867
1868 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1869 release notes and additional status information.
1870
1871 Say N if your target does not have VFP hardware.
1872
Catalin Marinas25ebee02007-09-25 15:22:24 +01001873config VFPv3
1874 bool
1875 depends on VFP
1876 default y if CPU_V7
1877
Catalin Marinasb5872db2008-01-10 19:16:17 +01001878config NEON
1879 bool "Advanced SIMD (NEON) Extension support"
1880 depends on VFPv3 && CPU_V7
1881 help
1882 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1883 Extension.
1884
Linus Torvalds1da177e2005-04-16 15:20:36 -07001885endmenu
1886
1887menu "Userspace binary formats"
1888
1889source "fs/Kconfig.binfmt"
1890
1891config ARTHUR
1892 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001893 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001894 help
1895 Say Y here to include the kernel code necessary if you want to run
1896 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1897 experimental; if this sounds frightening, say N and sleep in peace.
1898 You can also say M here to compile this support as a module (which
1899 will be called arthur).
1900
1901endmenu
1902
1903menu "Power management options"
1904
Russell Kingeceab4a2005-11-15 11:31:41 +00001905source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001906
Johannes Bergf4cb5702007-12-08 02:14:00 +01001907config ARCH_SUSPEND_POSSIBLE
1908 def_bool y
1909
Linus Torvalds1da177e2005-04-16 15:20:36 -07001910endmenu
1911
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001912source "net/Kconfig"
1913
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001914source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001915
1916source "fs/Kconfig"
1917
Linus Torvalds1da177e2005-04-16 15:20:36 -07001918source "arch/arm/Kconfig.debug"
1919
1920source "security/Kconfig"
1921
1922source "crypto/Kconfig"
1923
1924source "lib/Kconfig"