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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
Adrian Bunk2064c942008-04-28 23:44:43 +02005 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01006 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08007 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00008 select SYS_SUPPORTS_APM_EMULATION
Will Deacond4c7b1f2010-11-04 18:24:22 +01009 select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010010 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060011 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050012 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080013 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040014 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010015 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
16 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053017 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040018 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080019 select HAVE_KERNEL_GZIP
20 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010021 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080022 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010023 select HAVE_PERF_EVENTS
24 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010025 select HAVE_REGS_AND_STACK_ACCESS_API
Will Deacon19852e52010-09-03 10:44:33 +010026 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 help
28 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000029 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070030 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000031 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 Europe. There is an ARM Linux project with a web page at
33 <http://www.arm.linux.org.uk/>.
34
Russell King1a189b92008-04-13 21:41:55 +010035config HAVE_PWM
36 bool
37
Ralf Baechle75e71532007-02-09 17:08:58 +000038config SYS_SUPPORTS_APM_EMULATION
39 bool
40
Russell King112f38a42010-12-15 19:23:07 +000041config HAVE_SCHED_CLOCK
42 bool
43
David Brownell0a938b92007-03-05 00:30:18 -080044config GENERIC_GPIO
45 bool
David Brownell0a938b92007-03-05 00:30:18 -080046
John Stultz5cfc8ee2010-03-24 00:22:36 +000047config ARCH_USES_GETTIMEOFFSET
48 bool
49 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010050
Kevin Hilman0567a0c2007-03-13 20:29:24 +010051config GENERIC_CLOCKEVENTS
52 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010053
Catalin Marinasa8655e82008-02-04 17:30:57 +010054config GENERIC_CLOCKEVENTS_BROADCAST
55 bool
56 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010057 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010058
Linus Walleijbc581772009-09-15 17:30:37 +010059config HAVE_TCM
60 bool
61 select GENERIC_ALLOCATOR
62
Russell Kinge119bff2010-01-10 17:23:29 +000063config HAVE_PROC_CPU
64 bool
65
Al Viro5ea81762007-02-11 15:41:31 +000066config NO_IOPORT
67 bool
Al Viro5ea81762007-02-11 15:41:31 +000068
Linus Torvalds1da177e2005-04-16 15:20:36 -070069config EISA
70 bool
71 ---help---
72 The Extended Industry Standard Architecture (EISA) bus was
73 developed as an open alternative to the IBM MicroChannel bus.
74
75 The EISA bus provided some of the features of the IBM MicroChannel
76 bus while maintaining backward compatibility with cards made for
77 the older ISA bus. The EISA bus saw limited use between 1988 and
78 1995 when it was made obsolete by the PCI bus.
79
80 Say Y here if you are building a kernel for an EISA-based machine.
81
82 Otherwise, say N.
83
84config SBUS
85 bool
86
87config MCA
88 bool
89 help
90 MicroChannel Architecture is found in some IBM PS/2 machines and
91 laptops. It is a bus system similar to PCI or ISA. See
92 <file:Documentation/mca.txt> (and especially the web page given
93 there) before attempting to build an MCA bus kernel.
94
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010095config GENERIC_HARDIRQS
96 bool
97 default y
98
Russell Kingf16fb1e2007-04-28 09:59:37 +010099config STACKTRACE_SUPPORT
100 bool
101 default y
102
Nicolas Pitref76e9152008-04-24 01:31:46 -0400103config HAVE_LATENCYTOP_SUPPORT
104 bool
105 depends on !SMP
106 default y
107
Russell Kingf16fb1e2007-04-28 09:59:37 +0100108config LOCKDEP_SUPPORT
109 bool
110 default y
111
Russell King7ad1bcb2006-08-27 12:07:02 +0100112config TRACE_IRQFLAGS_SUPPORT
113 bool
114 default y
115
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100116config HARDIRQS_SW_RESEND
117 bool
118 default y
119
120config GENERIC_IRQ_PROBE
121 bool
122 default y
123
Nick Piggin95c354f2008-01-30 13:31:20 +0100124config GENERIC_LOCKBREAK
125 bool
126 default y
127 depends on SMP && PREEMPT
128
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129config RWSEM_GENERIC_SPINLOCK
130 bool
131 default y
132
133config RWSEM_XCHGADD_ALGORITHM
134 bool
135
David Howellsf0d1b0b2006-12-08 02:37:49 -0800136config ARCH_HAS_ILOG2_U32
137 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800138
139config ARCH_HAS_ILOG2_U64
140 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800141
Ben Dooks89c52ed2009-07-30 23:23:24 +0100142config ARCH_HAS_CPUFREQ
143 bool
144 help
145 Internal node to signify that the ARCH has CPUFREQ support
146 and that the relevant menu configurations are displayed for
147 it.
148
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100149config ARCH_HAS_CPU_IDLE_WAIT
150 def_bool y
151
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800152config GENERIC_HWEIGHT
153 bool
154 default y
155
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156config GENERIC_CALIBRATE_DELAY
157 bool
158 default y
159
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100160config ARCH_MAY_HAVE_PC_FDC
161 bool
162
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800163config ZONE_DMA
164 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800165
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800166config NEED_DMA_MAP_STATE
167 def_bool y
168
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169config GENERIC_ISA_DMA
170 bool
171
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172config FIQ
173 bool
174
Al Viro034d2f52005-12-19 16:27:59 -0500175config ARCH_MTD_XIP
176 bool
177
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100178config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100179 def_bool y
180
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100181config ARM_L1_CACHE_SHIFT_6
182 bool
183 help
184 Setting ARM L1 cache line size to 64 Bytes.
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194source "init/Kconfig"
195
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700196source "kernel/Kconfig.freezer"
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198menu "System Type"
199
Hyok S. Choi3c427972009-07-24 12:35:00 +0100200config MMU
201 bool "MMU-based Paged Memory Management Support"
202 default y
203 help
204 Select if you want MMU-based virtualised addressing space
205 support by paged memory management. If unsure, say 'Y'.
206
Russell Kingccf50e22010-03-15 19:03:06 +0000207#
208# The "ARM system type" choice list is ordered alphabetically by option
209# text. Please add new entries in the option alphabetic order.
210#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211choice
212 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000213 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100215config ARCH_AAEC2000
216 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000217 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100218 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700219 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000220 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100221 help
222 This enables support for systems based on the Agilent AAEC-2000
223
224config ARCH_INTEGRATOR
225 bool "ARM Ltd. Integrator family"
226 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100227 select ARCH_HAS_CPUFREQ
Russell Kingd72fbdf2008-11-08 20:08:08 +0000228 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000229 select ICST
Russell King13edd862010-01-15 21:49:23 +0000230 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000231 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 help
233 Support for ARM's Integrator platform.
234
235config ARCH_REALVIEW
236 bool "ARM Ltd. RealView family"
237 select ARM_AMBA
Russell Kingcf30fb42008-11-08 20:05:55 +0000238 select COMMON_CLKDEV
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
Russell King71a06da2008-11-08 20:13:53 +0000252 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000253 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100254 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100255 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000256 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000257 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100258 help
259 This enables support for ARM Ltd Versatile board.
260
Russell Kingceade892010-02-11 21:44:53 +0000261config ARCH_VEXPRESS
262 bool "ARM Ltd. Versatile Express family"
263 select ARCH_WANT_OPTIONAL_GPIOLIB
264 select ARM_AMBA
265 select ARM_TIMER_SP804
266 select COMMON_CLKDEV
267 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000268 select HAVE_CLK
269 select ICST
270 select PLAT_VERSATILE
271 help
272 This enables support for the ARM Ltd Versatile Express boards.
273
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100274config ARCH_AT91
275 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100276 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700277 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100278 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100279 This enables support for systems based on the Atmel AT91RM9200,
280 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100281
Russell Kingccf50e22010-03-15 19:03:06 +0000282config ARCH_BCMRING
283 bool "Broadcom BCMRING"
284 depends on MMU
285 select CPU_V6
286 select ARM_AMBA
287 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000288 select GENERIC_CLOCKEVENTS
289 select ARCH_WANT_OPTIONAL_GPIOLIB
290 help
291 Support for Broadcom's BCMRing platform.
292
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100294 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000295 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000296 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000297 help
298 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300300config ARCH_CNS3XXX
301 bool "Cavium Networks CNS3XXX family"
302 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300303 select GENERIC_CLOCKEVENTS
304 select ARM_GIC
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400305 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300306 help
307 Support for Cavium Networks CNS3XXX platform.
308
Russell King788c9702009-04-26 14:21:59 +0100309config ARCH_GEMINI
310 bool "Cortina Systems Gemini"
311 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100312 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000313 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100314 help
315 Support for the Cortina Systems Gemini family SoCs
316
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317config ARCH_EBSA110
318 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000319 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100320 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000321 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000322 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 help
324 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000325 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326 Ethernet interface, two PCMCIA sockets, two serial ports and a
327 parallel port.
328
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000329config ARCH_EP93XX
330 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000331 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000332 select ARM_AMBA
333 select ARM_VIC
Russell Kingae696fd2008-11-30 17:11:49 +0000334 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700335 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100336 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000337 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000338 help
339 This enables support for the Cirrus EP93xx series of CPUs.
340
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341config ARCH_FOOTBRIDGE
342 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000343 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000345 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000346 help
347 Support for systems based on the DC21285 companion chip
348 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349
Russell King788c9702009-04-26 14:21:59 +0100350config ARCH_MXC
351 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100352 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100353 select ARCH_REQUIRE_GPIOLIB
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100354 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100355 help
356 Support for Freescale MXC/iMX-based family of processors
357
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100358config ARCH_STMP3XXX
359 bool "Freescale STMP3xxx"
360 select CPU_ARM926T
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100361 select COMMON_CLKDEV
362 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100363 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100364 select USB_ARCH_HAS_EHCI
365 help
366 Support for systems based on the Freescale 3xxx CPUs.
367
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100368config ARCH_NETX
369 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000370 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100371 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100372 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000373 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100374 This enables support for systems based on the Hilscher NetX Soc
375
376config ARCH_H720X
377 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000378 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100379 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000380 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100381 help
382 This enables support for systems based on the Hynix HMS720x
383
Russell King3b938be2007-05-12 11:25:44 +0100384config ARCH_IOP13XX
385 bool "IOP13xx-based"
386 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000387 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100388 select PLAT_IOP
389 select PCI
390 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100391 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100392 help
393 Support for Intel's IOP13XX (XScale) family of processors.
394
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100395config ARCH_IOP32X
396 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100397 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000398 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100399 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100400 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100401 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000402 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100403 Support for Intel's 80219 and IOP32X (XScale) family of
404 processors.
405
406config ARCH_IOP33X
407 bool "IOP33x-based"
408 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
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100411 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100412 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100413 help
414 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415
Russell King3b938be2007-05-12 11:25:44 +0100416config ARCH_IXP23XX
417 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100418 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000419 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100420 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000421 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100422 help
Russell King3b938be2007-05-12 11:25:44 +0100423 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424
425config ARCH_IXP2000
426 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100427 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000428 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100429 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000430 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000431 help
432 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433
Russell King3b938be2007-05-12 11:25:44 +0100434config ARCH_IXP4XX
435 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100436 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000437 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100438 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100439 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100440 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100441 help
Russell King3b938be2007-05-12 11:25:44 +0100442 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100443
Saeed Bisharaedabd382009-08-06 15:12:43 +0300444config ARCH_DOVE
445 bool "Marvell Dove"
446 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300447 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300448 select GENERIC_CLOCKEVENTS
449 select PLAT_ORION
450 help
451 Support for the Marvell Dove SoC 88AP510
452
Saeed Bishara651c74c2008-06-22 22:45:06 +0200453config ARCH_KIRKWOOD
454 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000455 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200456 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700457 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200458 select GENERIC_CLOCKEVENTS
459 select PLAT_ORION
460 help
461 Support for the following Marvell Kirkwood series SoCs:
462 88F6180, 88F6192 and 88F6281.
463
Russell King788c9702009-04-26 14:21:59 +0100464config ARCH_LOKI
465 bool "Marvell Loki (88RC8480)"
466 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100467 select GENERIC_CLOCKEVENTS
468 select PLAT_ORION
469 help
470 Support for the Marvell Loki (88RC8480) SoC.
471
Kevin Wells40805942010-07-27 08:49:04 -0700472config ARCH_LPC32XX
473 bool "NXP LPC32XX"
474 select CPU_ARM926T
475 select ARCH_REQUIRE_GPIOLIB
476 select HAVE_IDE
477 select ARM_AMBA
478 select USB_ARCH_HAS_OHCI
479 select COMMON_CLKDEV
480 select GENERIC_TIME
481 select GENERIC_CLOCKEVENTS
482 help
483 Support for the NXP LPC32XX family of processors
484
Russell King788c9702009-04-26 14:21:59 +0100485config ARCH_MV78XX0
486 bool "Marvell MV78xx0"
487 select CPU_FEROCEON
488 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700489 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100490 select GENERIC_CLOCKEVENTS
491 select PLAT_ORION
492 help
493 Support for the following Marvell MV78xx0 series SoCs:
494 MV781x0, MV782x0.
495
496config ARCH_ORION5X
497 bool "Marvell Orion"
498 depends on MMU
499 select CPU_FEROCEON
500 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700501 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100502 select GENERIC_CLOCKEVENTS
503 select PLAT_ORION
504 help
505 Support for the following Marvell Orion 5x series SoCs:
506 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
507 Orion-2 (5281), Orion-1-90 (6183).
508
509config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500510 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100511 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100512 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100513 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100514 select GENERIC_CLOCKEVENTS
515 select TICK_ONESHOT
516 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400517 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100518 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500519 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100520
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100521config ARCH_KS8695
522 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000523 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100524 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000525 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100526 help
527 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
528 System-on-Chip devices.
529
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100530config ARCH_NS9XXX
531 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000532 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100533 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100534 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700535 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100536 help
537 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
538 System.
539
540 <http://www.digi.com/products/microprocessors/index.jsp>
541
Russell King788c9702009-04-26 14:21:59 +0100542config ARCH_W90X900
543 bool "Nuvoton W90X900 CPU"
544 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100545 select ARCH_REQUIRE_GPIOLIB
wanzongshun0e4a34b2009-06-10 15:50:44 +0100546 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100547 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200548 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100549 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
550 At present, the w90x900 has been renamed nuc900, regarding
551 the ARM series product line, you can login the following
552 link address to know more.
553
554 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
555 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400556
wanzongshuna62e9032009-12-31 15:06:05 +0100557config ARCH_NUC93X
558 bool "Nuvoton NUC93X CPU"
559 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100560 select COMMON_CLKDEV
561 help
562 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
563 low-power and high performance MPEG-4/JPEG multimedia controller chip.
564
Erik Gillingc5f80062010-01-21 16:53:02 -0800565config ARCH_TEGRA
566 bool "NVIDIA Tegra"
567 select GENERIC_TIME
568 select GENERIC_CLOCKEVENTS
569 select GENERIC_GPIO
570 select HAVE_CLK
Colin Crossd8611962010-01-28 16:40:29 -0800571 select COMMON_CLKDEV
Erik Gillingc5f80062010-01-21 16:53:02 -0800572 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700573 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800574 help
575 This enables support for NVIDIA Tegra based systems (Tegra APX,
576 Tegra 6xx and Tegra 2 series).
577
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100578config ARCH_PNX4008
579 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000580 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000581 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000582 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100583 help
584 This enables support for Philips PNX4008 mobile platform.
585
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700587 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100588 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500589 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100590 select ARCH_HAS_CPUFREQ
Russell King8c3abc72008-11-08 20:25:21 +0000591 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700592 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100593 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000594 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800595 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800596 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000597 help
eric miao2c8086a2007-09-11 19:13:17 -0700598 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599
Russell King788c9702009-04-26 14:21:59 +0100600config ARCH_MSM
601 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500602 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800603 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700604 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800605 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800606 Support for Qualcomm MSM/QSD based systems. This runs on the
607 apps processor of the MSM/QSD and depends on a shared memory
608 interface to the modem processor which runs the baseband
609 stack and controls some vital subsystems
610 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800611
Magnus Dammc793c1b2010-02-05 11:14:49 +0000612config ARCH_SHMOBILE
613 bool "Renesas SH-Mobile"
614 help
615 Support for Renesas's SH-Mobile ARM platforms
616
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617config ARCH_RPC
618 bool "RiscPC"
619 select ARCH_ACORN
620 select FIQ
621 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100622 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100623 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000624 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000625 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100626 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000627 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628 help
629 On the Acorn Risc-PC, Linux can support the internal IDE disk and
630 CD-ROM interface, serial and parallel port, and the floppy drive.
631
632config ARCH_SA1100
633 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000634 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100635 select ISA
Russell King05944d72006-11-30 20:43:51 +0000636 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500637 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100638 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000639 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100640 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700641 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100642 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700643 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000644 help
645 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700646
647config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900648 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800649 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100650 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700651 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000652 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900653 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654 help
655 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
656 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000657 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658
Ben Dooks63b1f512010-04-30 16:32:26 +0900659 Note, the S3C2416 and the S3C2450 are so close that they even share
660 the same SoC ID code. This means that there is no seperate machine
661 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
662
Ben Dooksa08ab632008-10-21 14:06:39 +0100663config ARCH_S3C64XX
664 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000665 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900666 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900667 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100668 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900669 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000670 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100671 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900672 select ARCH_REQUIRE_GPIOLIB
673 select SAMSUNG_CLKSRC
674 select SAMSUNG_IRQ_VIC_TIMER
675 select SAMSUNG_IRQ_UART
676 select S3C_GPIO_TRACK
677 select S3C_GPIO_PULL_UPDOWN
678 select S3C_GPIO_CFG_S3C24XX
679 select S3C_GPIO_CFG_S3C64XX
680 select S3C_DEV_NAND
681 select USB_ARCH_HAS_OHCI
682 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900683 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900684 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100685 help
686 Samsung S3C64XX series based systems
687
Kukjin Kim49b7a492010-09-07 15:47:18 +0900688config ARCH_S5P64X0
689 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900690 select CPU_V6
691 select GENERIC_GPIO
692 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900693 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900694 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900695 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900696 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900697 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900698 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
699 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900700
Kukjin Kim550db7f2010-01-29 10:19:26 +0900701config ARCH_S5P6442
702 bool "Samsung S5P6442"
703 select CPU_V6
704 select GENERIC_GPIO
705 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900706 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900707 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900708 help
709 Samsung S5P6442 CPU based systems
710
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200711config ARCH_S5PC100
712 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900713 select GENERIC_GPIO
714 select HAVE_CLK
715 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100716 select ARM_L1_CACHE_SHIFT_6
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
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900720 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900721 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200722 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900723
Kukjin Kim170f4e42010-02-24 16:40:44 +0900724config ARCH_S5PV210
725 bool "Samsung S5PV210/S5PC110"
726 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900727 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900728 select GENERIC_GPIO
729 select HAVE_CLK
730 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900731 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900732 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900733 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900734 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900735 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900736 help
737 Samsung S5PV210/S5PC110 series based systems
738
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900739config ARCH_S5PV310
740 bool "Samsung S5PV310/S5PC210"
741 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900742 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900743 select GENERIC_GPIO
744 select HAVE_CLK
745 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900746 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900747 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900748 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900749 help
750 Samsung S5PV310 series based systems
751
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752config ARCH_SHARK
753 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000754 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100755 select ISA
756 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100757 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100758 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000759 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000760 help
761 Support for the StrongARM based Digital DNARD machine, also known
762 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763
Hans J. Koch83ef3332010-09-17 18:13:56 +0200764config ARCH_TCC_926
765 bool "Telechips TCC ARM926-based systems"
766 select CPU_ARM926T
767 select HAVE_CLK
768 select COMMON_CLKDEV
769 select GENERIC_CLOCKEVENTS
770 help
771 Support for Telechips TCC ARM926-based systems.
772
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773config ARCH_LH7A40X
774 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000775 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100776 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000777 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778 help
779 Say Y here for systems based on one of the Sharp LH7A40X
780 System on a Chip processors. These CPUs include an ARM922T
781 core with a wide array of integrated devices for
782 hand-held and low-power applications.
783
Linus Walleijd98aac72009-04-27 10:21:46 +0100784config ARCH_U300
785 bool "ST-Ericsson U300 Series"
786 depends on MMU
787 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100788 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100789 select ARM_AMBA
790 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100791 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100792 select COMMON_CLKDEV
793 select GENERIC_GPIO
794 help
795 Support for ST-Ericsson U300 series mobile platforms.
796
Russell Kingccf50e22010-03-15 19:03:06 +0000797config ARCH_U8500
798 bool "ST-Ericsson U8500 Series"
799 select CPU_V7
800 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000801 select GENERIC_CLOCKEVENTS
802 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100803 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000804 help
805 Support for ST-Ericsson's Ux500 architecture
806
807config ARCH_NOMADIK
808 bool "STMicroelectronics Nomadik"
809 select ARM_AMBA
810 select ARM_VIC
811 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000812 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000813 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000814 select ARCH_REQUIRE_GPIOLIB
815 help
816 Support for the Nomadik platform by ST-Ericsson
817
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100818config ARCH_DAVINCI
819 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100820 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700821 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100822 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700823 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700824 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700825 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530826 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100827 help
828 Support for TI's DaVinci platform.
829
Russell King3b938be2007-05-12 11:25:44 +0100830config ARCH_OMAP
831 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700832 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700833 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100834 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700835 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800836 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100837 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200838 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100839
viresh kumarcee37e52010-04-01 12:31:05 +0100840config PLAT_SPEAR
841 bool "ST SPEAr"
842 select ARM_AMBA
843 select ARCH_REQUIRE_GPIOLIB
844 select COMMON_CLKDEV
845 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100846 select HAVE_CLK
847 help
848 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
849
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850endchoice
851
Russell Kingccf50e22010-03-15 19:03:06 +0000852#
853# This is sorted alphabetically by mach-* pathname. However, plat-*
854# Kconfigs may be included either alphabetically (according to the
855# plat- suffix) or along side the corresponding mach-* source.
856#
Russell King95b8f202010-01-14 11:43:54 +0000857source "arch/arm/mach-aaec2000/Kconfig"
858
859source "arch/arm/mach-at91/Kconfig"
860
861source "arch/arm/mach-bcmring/Kconfig"
862
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863source "arch/arm/mach-clps711x/Kconfig"
864
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300865source "arch/arm/mach-cns3xxx/Kconfig"
866
Russell King95b8f202010-01-14 11:43:54 +0000867source "arch/arm/mach-davinci/Kconfig"
868
869source "arch/arm/mach-dove/Kconfig"
870
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000871source "arch/arm/mach-ep93xx/Kconfig"
872
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873source "arch/arm/mach-footbridge/Kconfig"
874
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200875source "arch/arm/mach-gemini/Kconfig"
876
Russell King95b8f202010-01-14 11:43:54 +0000877source "arch/arm/mach-h720x/Kconfig"
878
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879source "arch/arm/mach-integrator/Kconfig"
880
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100881source "arch/arm/mach-iop32x/Kconfig"
882
883source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884
Dan Williams285f5fa2006-12-07 02:59:39 +0100885source "arch/arm/mach-iop13xx/Kconfig"
886
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887source "arch/arm/mach-ixp4xx/Kconfig"
888
889source "arch/arm/mach-ixp2000/Kconfig"
890
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100891source "arch/arm/mach-ixp23xx/Kconfig"
892
Russell King95b8f202010-01-14 11:43:54 +0000893source "arch/arm/mach-kirkwood/Kconfig"
894
895source "arch/arm/mach-ks8695/Kconfig"
896
897source "arch/arm/mach-lh7a40x/Kconfig"
898
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200899source "arch/arm/mach-loki/Kconfig"
900
Kevin Wells40805942010-07-27 08:49:04 -0700901source "arch/arm/mach-lpc32xx/Kconfig"
902
Russell King95b8f202010-01-14 11:43:54 +0000903source "arch/arm/mach-msm/Kconfig"
904
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200905source "arch/arm/mach-mv78xx0/Kconfig"
906
Russell King95b8f202010-01-14 11:43:54 +0000907source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908
Russell King95b8f202010-01-14 11:43:54 +0000909source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800910
Russell King95b8f202010-01-14 11:43:54 +0000911source "arch/arm/mach-nomadik/Kconfig"
912source "arch/arm/plat-nomadik/Kconfig"
913
914source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915
Russell Kingd91a89102010-02-04 18:13:17 +0000916source "arch/arm/mach-nuc93x/Kconfig"
917
Tony Lindgrend48af152005-07-10 19:58:17 +0100918source "arch/arm/plat-omap/Kconfig"
919
920source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921
Tony Lindgren1dbae812005-11-10 14:26:51 +0000922source "arch/arm/mach-omap2/Kconfig"
923
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400924source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400925
Russell King95b8f202010-01-14 11:43:54 +0000926source "arch/arm/mach-pxa/Kconfig"
927source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928
Russell King95b8f202010-01-14 11:43:54 +0000929source "arch/arm/mach-mmp/Kconfig"
930
931source "arch/arm/mach-realview/Kconfig"
932
933source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300934
Ben Dookscf383672009-11-10 00:14:58 +0000935source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100936source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900937source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100938
viresh kumarcee37e52010-04-01 12:31:05 +0100939source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100940
Hans J. Koch83ef3332010-09-17 18:13:56 +0200941source "arch/arm/plat-tcc/Kconfig"
942
Ben Dooksa21765a2007-02-11 18:31:01 +0100943if ARCH_S3C2410
944source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100946source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900947source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100948source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100949source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100950endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951
Ben Dooksa08ab632008-10-21 14:06:39 +0100952if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900953source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100954endif
955
Kukjin Kim49b7a492010-09-07 15:47:18 +0900956source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900957
Kukjin Kim550db7f2010-01-29 10:19:26 +0900958source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100959
Byungho Min5a7652f2009-06-23 21:39:42 +0900960source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900961
Kukjin Kim170f4e42010-02-24 16:40:44 +0900962source "arch/arm/mach-s5pv210/Kconfig"
963
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900964source "arch/arm/mach-s5pv310/Kconfig"
965
Russell King882d01f2010-03-02 23:40:15 +0000966source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967
Russell King882d01f2010-03-02 23:40:15 +0000968source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800969
Erik Gillingc5f80062010-01-21 16:53:02 -0800970source "arch/arm/mach-tegra/Kconfig"
971
Russell King95b8f202010-01-14 11:43:54 +0000972source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100973
Russell King95b8f202010-01-14 11:43:54 +0000974source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975
976source "arch/arm/mach-versatile/Kconfig"
977
Russell Kingceade892010-02-11 21:44:53 +0000978source "arch/arm/mach-vexpress/Kconfig"
979
wanzongshun7ec80dd2008-12-03 03:55:38 +0100980source "arch/arm/mach-w90x900/Kconfig"
981
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982# Definitions to make life easier
983config ARCH_ACORN
984 bool
985
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100986config PLAT_IOP
987 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700988 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100989
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400990config PLAT_ORION
991 bool
992
Eric Miaobd5ce432009-01-20 12:06:01 +0800993config PLAT_PXA
994 bool
995
Russell Kingf4b8b312010-01-14 12:48:06 +0000996config PLAT_VERSATILE
997 bool
998
Russell Kinge3887712010-01-14 13:30:16 +0000999config ARM_TIMER_SP804
1000 bool
1001
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002source arch/arm/mm/Kconfig
1003
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001004config IWMMXT
1005 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +08001006 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
1007 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001008 help
1009 Enable support for iWMMXt context switching at run time if
1010 running on a CPU that supports it.
1011
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1013config XSCALE_PMU
1014 bool
1015 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1016 default y
1017
Jamie Iles0f4f0672010-02-02 20:23:15 +01001018config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001019 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1020 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001021 default y
1022 bool
1023
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001024if !MMU
1025source "arch/arm/Kconfig-nommu"
1026endif
1027
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001028config ARM_ERRATA_411920
1029 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001030 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001031 help
1032 Invalidation of the Instruction Cache operation can
1033 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1034 It does not affect the MPCore. This option enables the ARM Ltd.
1035 recommended workaround.
1036
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001037config ARM_ERRATA_430973
1038 bool "ARM errata: Stale prediction on replaced interworking branch"
1039 depends on CPU_V7
1040 help
1041 This option enables the workaround for the 430973 Cortex-A8
1042 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1043 interworking branch is replaced with another code sequence at the
1044 same virtual address, whether due to self-modifying code or virtual
1045 to physical address re-mapping, Cortex-A8 does not recover from the
1046 stale interworking branch prediction. This results in Cortex-A8
1047 executing the new code sequence in the incorrect ARM or Thumb state.
1048 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1049 and also flushes the branch target cache at every context switch.
1050 Note that setting specific bits in the ACTLR register may not be
1051 available in non-secure mode.
1052
Catalin Marinas855c5512009-04-30 17:06:15 +01001053config ARM_ERRATA_458693
1054 bool "ARM errata: Processor deadlock when a false hazard is created"
1055 depends on CPU_V7
1056 help
1057 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1058 erratum. For very specific sequences of memory operations, it is
1059 possible for a hazard condition intended for a cache line to instead
1060 be incorrectly associated with a different cache line. This false
1061 hazard might then cause a processor deadlock. The workaround enables
1062 the L1 caching of the NEON accesses and disables the PLD instruction
1063 in the ACTLR register. Note that setting specific bits in the ACTLR
1064 register may not be available in non-secure mode.
1065
Catalin Marinas0516e462009-04-30 17:06:20 +01001066config ARM_ERRATA_460075
1067 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1068 depends on CPU_V7
1069 help
1070 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1071 erratum. Any asynchronous access to the L2 cache may encounter a
1072 situation in which recent store transactions to the L2 cache are lost
1073 and overwritten with stale memory contents from external memory. The
1074 workaround disables the write-allocate mode for the L2 cache via the
1075 ACTLR register. Note that setting specific bits in the ACTLR register
1076 may not be available in non-secure mode.
1077
Will Deacon9f050272010-09-14 09:51:43 +01001078config ARM_ERRATA_742230
1079 bool "ARM errata: DMB operation may be faulty"
1080 depends on CPU_V7 && SMP
1081 help
1082 This option enables the workaround for the 742230 Cortex-A9
1083 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1084 between two write operations may not ensure the correct visibility
1085 ordering of the two writes. This workaround sets a specific bit in
1086 the diagnostic register of the Cortex-A9 which causes the DMB
1087 instruction to behave as a DSB, ensuring the correct behaviour of
1088 the two writes.
1089
Will Deacona672e992010-09-14 09:53:02 +01001090config ARM_ERRATA_742231
1091 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1092 depends on CPU_V7 && SMP
1093 help
1094 This option enables the workaround for the 742231 Cortex-A9
1095 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1096 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1097 accessing some data located in the same cache line, may get corrupted
1098 data due to bad handling of the address hazard when the line gets
1099 replaced from one of the CPUs at the same time as another CPU is
1100 accessing it. This workaround sets specific bits in the diagnostic
1101 register of the Cortex-A9 which reduces the linefill issuing
1102 capabilities of the processor.
1103
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001104config PL310_ERRATA_588369
1105 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1106 depends on CACHE_L2X0 && ARCH_OMAP4
1107 help
1108 The PL310 L2 cache controller implements three types of Clean &
1109 Invalidate maintenance operations: by Physical Address
1110 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1111 They are architecturally defined to behave as the execution of a
1112 clean operation followed immediately by an invalidate operation,
1113 both performing to the same memory location. This functionality
1114 is not correctly implemented in PL310 as clean lines are not
1115 invalidated as a result of these operations. Note that this errata
1116 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001117
1118config ARM_ERRATA_720789
1119 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1120 depends on CPU_V7 && SMP
1121 help
1122 This option enables the workaround for the 720789 Cortex-A9 (prior to
1123 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1124 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1125 As a consequence of this erratum, some TLB entries which should be
1126 invalidated are not, resulting in an incoherency in the system page
1127 tables. The workaround changes the TLB flushing routines to invalidate
1128 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001129
1130config ARM_ERRATA_743622
1131 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1132 depends on CPU_V7
1133 help
1134 This option enables the workaround for the 743622 Cortex-A9
1135 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1136 optimisation in the Cortex-A9 Store Buffer may lead to data
1137 corruption. This workaround sets a specific bit in the diagnostic
1138 register of the Cortex-A9 which disables the Store Buffer
1139 optimisation, preventing the defect from occurring. This has no
1140 visible impact on the overall performance or power consumption of the
1141 processor.
1142
Linus Torvalds1da177e2005-04-16 15:20:36 -07001143endmenu
1144
1145source "arch/arm/common/Kconfig"
1146
Linus Torvalds1da177e2005-04-16 15:20:36 -07001147menu "Bus support"
1148
1149config ARM_AMBA
1150 bool
1151
1152config ISA
1153 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001154 help
1155 Find out whether you have ISA slots on your motherboard. ISA is the
1156 name of a bus system, i.e. the way the CPU talks to the other stuff
1157 inside your box. Other bus systems are PCI, EISA, MicroChannel
1158 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1159 newer boards don't support it. If you have ISA, say Y, otherwise N.
1160
Russell King065909b2006-01-04 15:44:16 +00001161# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162config ISA_DMA
1163 bool
Russell King065909b2006-01-04 15:44:16 +00001164 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001165
Russell King065909b2006-01-04 15:44:16 +00001166# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001167config ISA_DMA_API
1168 bool
Al Viro5cae8412005-05-04 05:39:22 +01001169
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170config PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +04001171 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE || ARCH_CNS3XXX
Linus Torvalds1da177e2005-04-16 15:20:36 -07001172 help
1173 Find out whether you have a PCI motherboard. PCI is the name of a
1174 bus system, i.e. the way the CPU talks to the other stuff inside
1175 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1176 VESA. If you have PCI, say Y, otherwise N.
1177
Anton Vorontsov52882172010-04-19 13:20:49 +01001178config PCI_DOMAINS
1179 bool
1180 depends on PCI
1181
Matthew Wilcox36e23592007-07-10 10:54:40 -06001182config PCI_SYSCALL
1183 def_bool PCI
1184
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185# Select the host bridge type
1186config PCI_HOST_VIA82C505
1187 bool
1188 depends on PCI && ARCH_SHARK
1189 default y
1190
Mike Rapoporta0113a92007-11-25 08:55:34 +01001191config PCI_HOST_ITE8152
1192 bool
1193 depends on PCI && MACH_ARMCORE
1194 default y
1195 select DMABOUNCE
1196
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197source "drivers/pci/Kconfig"
1198
1199source "drivers/pcmcia/Kconfig"
1200
1201endmenu
1202
1203menu "Kernel Features"
1204
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001205source "kernel/time/Kconfig"
1206
Linus Torvalds1da177e2005-04-16 15:20:36 -07001207config SMP
1208 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001209 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001210 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001211 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001212 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1213 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
1214 ARCH_MSM_SCORPIONMP
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001215 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001216 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217 help
1218 This enables support for systems with more than one CPU. If you have
1219 a system with only one CPU, like most personal computers, say N. If
1220 you have a system with more than one CPU, say Y.
1221
1222 If you say N here, the kernel will run on single and multiprocessor
1223 machines, but will use only one CPU of a multiprocessor machine. If
1224 you say Y here, the kernel will run on many, but not all, single
1225 processor machines. On a single processor machine, the kernel will
1226 run faster if you say N here.
1227
Adrian Bunk03502fa2008-02-03 15:50:21 +02001228 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001230 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001231
1232 If you don't know what to do here, say N.
1233
Russell Kingf00ec482010-09-04 10:47:48 +01001234config SMP_ON_UP
1235 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1236 depends on EXPERIMENTAL
1237 depends on SMP && !XIP && !THUMB2_KERNEL
1238 default y
1239 help
1240 SMP kernels contain instructions which fail on non-SMP processors.
1241 Enabling this option allows the kernel to modify itself to make
1242 these instructions safe. Disabling it allows about 1K of space
1243 savings.
1244
1245 If you don't know what to do here, say Y.
1246
Russell Kinga8cbcd92009-05-16 11:51:14 +01001247config HAVE_ARM_SCU
1248 bool
1249 depends on SMP
1250 help
1251 This option enables support for the ARM system coherency unit
1252
Russell Kingf32f4ce2009-05-16 12:14:21 +01001253config HAVE_ARM_TWD
1254 bool
1255 depends on SMP
1256 help
1257 This options enables support for the ARM timer and watchdog unit
1258
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001259choice
1260 prompt "Memory split"
1261 default VMSPLIT_3G
1262 help
1263 Select the desired split between kernel and user memory.
1264
1265 If you are not absolutely sure what you are doing, leave this
1266 option alone!
1267
1268 config VMSPLIT_3G
1269 bool "3G/1G user/kernel split"
1270 config VMSPLIT_2G
1271 bool "2G/2G user/kernel split"
1272 config VMSPLIT_1G
1273 bool "1G/3G user/kernel split"
1274endchoice
1275
1276config PAGE_OFFSET
1277 hex
1278 default 0x40000000 if VMSPLIT_1G
1279 default 0x80000000 if VMSPLIT_2G
1280 default 0xC0000000
1281
Linus Torvalds1da177e2005-04-16 15:20:36 -07001282config NR_CPUS
1283 int "Maximum number of CPUs (2-32)"
1284 range 2 32
1285 depends on SMP
1286 default "4"
1287
Russell Kinga054a812005-11-02 22:24:33 +00001288config HOTPLUG_CPU
1289 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1290 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001291 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001292 help
1293 Say Y here to experiment with turning CPUs off and on. CPUs
1294 can be controlled through /sys/devices/system/cpu.
1295
Russell King37ee16a2005-11-08 19:08:05 +00001296config LOCAL_TIMERS
1297 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001298 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001299 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001300 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001301 help
1302 Enable support for local timers on SMP platforms, rather then the
1303 legacy IPI broadcast method. Local timers allows the system
1304 accounting to be spread across the timer interval, preventing a
1305 "thundering herd" at every timer tick.
1306
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001307source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001308
Russell Kingf8065812006-03-02 22:41:59 +00001309config HZ
1310 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001311 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001312 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001313 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001314 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001315 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001316 default 100
1317
Catalin Marinas16c79652009-07-24 12:33:02 +01001318config THUMB2_KERNEL
1319 bool "Compile the kernel in Thumb-2 mode"
1320 depends on CPU_V7 && EXPERIMENTAL
1321 select AEABI
1322 select ARM_ASM_UNIFIED
1323 help
1324 By enabling this option, the kernel will be compiled in
1325 Thumb-2 mode. A compiler/assembler that understand the unified
1326 ARM-Thumb syntax is needed.
1327
1328 If unsure, say N.
1329
Catalin Marinas0becb082009-07-24 12:32:53 +01001330config ARM_ASM_UNIFIED
1331 bool
1332
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001333config AEABI
1334 bool "Use the ARM EABI to compile the kernel"
1335 help
1336 This option allows for the kernel to be compiled using the latest
1337 ARM ABI (aka EABI). This is only useful if you are using a user
1338 space environment that is also compiled with EABI.
1339
1340 Since there are major incompatibilities between the legacy ABI and
1341 EABI, especially with regard to structure member alignment, this
1342 option also changes the kernel syscall calling convention to
1343 disambiguate both ABIs and allow for backward compatibility support
1344 (selected with CONFIG_OABI_COMPAT).
1345
1346 To use this you need GCC version 4.0.0 or later.
1347
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001348config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001349 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001350 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001351 default y
1352 help
1353 This option preserves the old syscall interface along with the
1354 new (ARM EABI) one. It also provides a compatibility layer to
1355 intercept syscalls that have structure arguments which layout
1356 in memory differs between the legacy ABI and the new ARM EABI
1357 (only for non "thumb" binaries). This option adds a tiny
1358 overhead to all syscalls and produces a slightly larger kernel.
1359 If you know you'll be using only pure EABI user space then you
1360 can say N here. If this option is not selected and you attempt
1361 to execute a legacy ABI binary then the result will be
1362 UNPREDICTABLE (in fact it can be predicted that it won't work
1363 at all). If in doubt say Y.
1364
Mel Gormaneb335752009-05-13 17:34:48 +01001365config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001366 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001367
Russell King05944d72006-11-30 20:43:51 +00001368config ARCH_SPARSEMEM_ENABLE
1369 bool
1370
Russell King07a2f732008-10-01 21:39:58 +01001371config ARCH_SPARSEMEM_DEFAULT
1372 def_bool ARCH_SPARSEMEM_ENABLE
1373
Russell King05944d72006-11-30 20:43:51 +00001374config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001375 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001376
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001377config HIGHMEM
1378 bool "High Memory Support (EXPERIMENTAL)"
1379 depends on MMU && EXPERIMENTAL
1380 help
1381 The address space of ARM processors is only 4 Gigabytes large
1382 and it has to accommodate user address space, kernel address
1383 space as well as some memory mapped IO. That means that, if you
1384 have a large amount of physical memory and/or IO, not all of the
1385 memory can be "permanently mapped" by the kernel. The physical
1386 memory that is not permanently mapped is called "high memory".
1387
1388 Depending on the selected kernel/user memory split, minimum
1389 vmalloc space and actual amount of RAM, you may not need this
1390 option which should result in a slightly faster kernel.
1391
1392 If unsure, say n.
1393
Russell King65cec8e2009-08-17 20:02:06 +01001394config HIGHPTE
1395 bool "Allocate 2nd-level pagetables from highmem"
1396 depends on HIGHMEM
1397 depends on !OUTER_CACHE
1398
Jamie Iles1b8873a2010-02-02 20:25:44 +01001399config HW_PERF_EVENTS
1400 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001401 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001402 default y
1403 help
1404 Enable hardware performance counter support for perf events. If
1405 disabled, perf events will use software events only.
1406
eric miao354e6f72010-06-25 09:46:09 +01001407config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001408 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001409 help
1410 This enables support for sparse irqs. This is useful in general
1411 as most CPUs have a fairly sparse array of IRQ vectors, which
1412 the irq_desc then maps directly on to. Systems with a high
1413 number of off-chip IRQs will want to treat this as
1414 experimental until they have been independently verified.
1415
Dave Hansen3f22ab22005-06-23 00:07:43 -07001416source "mm/Kconfig"
1417
Magnus Dammc1b2d972010-07-05 10:00:11 +01001418config FORCE_MAX_ZONEORDER
1419 int "Maximum zone order" if ARCH_SHMOBILE
1420 range 11 64 if ARCH_SHMOBILE
1421 default "9" if SA1111
1422 default "11"
1423 help
1424 The kernel memory allocator divides physically contiguous memory
1425 blocks into "zones", where each zone is a power of two number of
1426 pages. This option selects the largest power of two that the kernel
1427 keeps in the memory allocator. If you need to allocate very large
1428 blocks of physically contiguous memory, then you may need to
1429 increase this value.
1430
1431 This config option is actually maximum order plus one. For example,
1432 a value of 11 means that the largest free memory block is 2^10 pages.
1433
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434config LEDS
1435 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001436 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001437 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1439 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001440 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001441 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001442 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443 help
1444 If you say Y here, the LEDs on your machine will be used
1445 to provide useful information about your current system status.
1446
1447 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1448 be able to select which LEDs are active using the options below. If
1449 you are compiling a kernel for the EBSA-110 or the LART however, the
1450 red LED will simply flash regularly to indicate that the system is
1451 still functional. It is safe to say Y here if you have a CATS
1452 system, but the driver will do nothing.
1453
1454config LEDS_TIMER
1455 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001456 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1457 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001458 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001459 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460 default y if ARCH_EBSA110
1461 help
1462 If you say Y here, one of the system LEDs (the green one on the
1463 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1464 will flash regularly to indicate that the system is still
1465 operational. This is mainly useful to kernel hackers who are
1466 debugging unstable kernels.
1467
1468 The LART uses the same LED for both Timer LED and CPU usage LED
1469 functions. You may choose to use both, but the Timer LED function
1470 will overrule the CPU usage LED.
1471
1472config LEDS_CPU
1473 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001474 !ARCH_OMAP) \
1475 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1476 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477 depends on LEDS
1478 help
1479 If you say Y here, the red LED will be used to give a good real
1480 time indication of CPU usage, by lighting whenever the idle task
1481 is not currently executing.
1482
1483 The LART uses the same LED for both Timer LED and CPU usage LED
1484 functions. You may choose to use both, but the Timer LED function
1485 will overrule the CPU usage LED.
1486
1487config ALIGNMENT_TRAP
1488 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001489 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001490 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001491 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001492 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001493 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001494 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1495 address divisible by 4. On 32-bit ARM processors, these non-aligned
1496 fetch/store instructions will be emulated in software if you say
1497 here, which has a severe performance impact. This is necessary for
1498 correct operation of some network protocols. With an IP-only
1499 configuration it is safe to say N, otherwise say Y.
1500
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001501config UACCESS_WITH_MEMCPY
1502 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1503 depends on MMU && EXPERIMENTAL
1504 default y if CPU_FEROCEON
1505 help
1506 Implement faster copy_to_user and clear_user methods for CPU
1507 cores where a 8-word STM instruction give significantly higher
1508 memory write throughput than a sequence of individual 32bit stores.
1509
1510 A possible side effect is a slight increase in scheduling latency
1511 between threads sharing the same address space if they invoke
1512 such copy operations with large buffers.
1513
1514 However, if the CPU data cache is using a write-allocate mode,
1515 this option is unlikely to provide any performance gain.
1516
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001517config SECCOMP
1518 bool
1519 prompt "Enable seccomp to safely compute untrusted bytecode"
1520 ---help---
1521 This kernel feature is useful for number crunching applications
1522 that may need to compute untrusted bytecode during their
1523 execution. By using pipes or other transports made available to
1524 the process as file descriptors supporting the read/write
1525 syscalls, it's possible to isolate those applications in
1526 their own address space using seccomp. Once seccomp is
1527 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1528 and the task is only allowed to execute a few safe syscalls
1529 defined by each seccomp mode.
1530
Nicolas Pitrec743f382010-05-24 23:55:42 -04001531config CC_STACKPROTECTOR
1532 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1533 help
1534 This option turns on the -fstack-protector GCC feature. This
1535 feature puts, at the beginning of functions, a canary value on
1536 the stack just before the return address, and validates
1537 the value just before actually returning. Stack based buffer
1538 overflows (that need to overwrite this return address) now also
1539 overwrite the canary, which gets detected and the attack is then
1540 neutralized via a kernel panic.
1541 This feature requires gcc version 4.2 or above.
1542
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001543config DEPRECATED_PARAM_STRUCT
1544 bool "Provide old way to pass kernel parameters"
1545 help
1546 This was deprecated in 2001 and announced to live on for 5 years.
1547 Some old boot loaders still use this way.
1548
Linus Torvalds1da177e2005-04-16 15:20:36 -07001549endmenu
1550
1551menu "Boot options"
1552
1553# Compressed boot loader in ROM. Yes, we really want to ask about
1554# TEXT and BSS so we preserve their values in the config files.
1555config ZBOOT_ROM_TEXT
1556 hex "Compressed ROM boot loader base address"
1557 default "0"
1558 help
1559 The physical address at which the ROM-able zImage is to be
1560 placed in the target. Platforms which normally make use of
1561 ROM-able zImage formats normally set this to a suitable
1562 value in their defconfig file.
1563
1564 If ZBOOT_ROM is not enabled, this has no effect.
1565
1566config ZBOOT_ROM_BSS
1567 hex "Compressed ROM boot loader BSS address"
1568 default "0"
1569 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001570 The base address of an area of read/write memory in the target
1571 for the ROM-able zImage which must be available while the
1572 decompressor is running. It must be large enough to hold the
1573 entire decompressed kernel plus an additional 128 KiB.
1574 Platforms which normally make use of ROM-able zImage formats
1575 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001576
1577 If ZBOOT_ROM is not enabled, this has no effect.
1578
1579config ZBOOT_ROM
1580 bool "Compressed boot loader in ROM/flash"
1581 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1582 help
1583 Say Y here if you intend to execute your compressed kernel image
1584 (zImage) directly from ROM or flash. If unsure, say N.
1585
1586config CMDLINE
1587 string "Default kernel command string"
1588 default ""
1589 help
1590 On some architectures (EBSA110 and CATS), there is currently no way
1591 for the boot loader to pass arguments to the kernel. For these
1592 architectures, you should supply some command-line options at build
1593 time by entering them here. As a minimum, you should specify the
1594 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1595
Alexander Holler92d20402010-02-16 19:04:53 +01001596config CMDLINE_FORCE
1597 bool "Always use the default kernel command string"
1598 depends on CMDLINE != ""
1599 help
1600 Always use the default kernel command string, even if the boot
1601 loader passes other arguments to the kernel.
1602 This is useful if you cannot or don't want to change the
1603 command-line options your boot loader passes to the kernel.
1604
1605 If unsure, say N.
1606
Linus Torvalds1da177e2005-04-16 15:20:36 -07001607config XIP_KERNEL
1608 bool "Kernel Execute-In-Place from ROM"
1609 depends on !ZBOOT_ROM
1610 help
1611 Execute-In-Place allows the kernel to run from non-volatile storage
1612 directly addressable by the CPU, such as NOR flash. This saves RAM
1613 space since the text section of the kernel is not loaded from flash
1614 to RAM. Read-write sections, such as the data section and stack,
1615 are still copied to RAM. The XIP kernel is not compressed since
1616 it has to run directly from flash, so it will take more space to
1617 store it. The flash address used to link the kernel object files,
1618 and for storing it, is configuration dependent. Therefore, if you
1619 say Y here, you must know the proper physical address where to
1620 store the kernel image depending on your own flash memory usage.
1621
1622 Also note that the make target becomes "make xipImage" rather than
1623 "make zImage" or "make Image". The final kernel binary to put in
1624 ROM memory will be arch/arm/boot/xipImage.
1625
1626 If unsure, say N.
1627
1628config XIP_PHYS_ADDR
1629 hex "XIP Kernel Physical Location"
1630 depends on XIP_KERNEL
1631 default "0x00080000"
1632 help
1633 This is the physical address in your flash memory the kernel will
1634 be linked for and stored to. This address is dependent on your
1635 own flash usage.
1636
Richard Purdiec587e4a2007-02-06 21:29:00 +01001637config KEXEC
1638 bool "Kexec system call (EXPERIMENTAL)"
1639 depends on EXPERIMENTAL
1640 help
1641 kexec is a system call that implements the ability to shutdown your
1642 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001643 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001644 you can start any kernel with it, not just Linux.
1645
1646 It is an ongoing process to be certain the hardware in a machine
1647 is properly shutdown, so do not be surprised if this code does not
1648 initially work for you. It may help to enable device hotplugging
1649 support.
1650
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001651config ATAGS_PROC
1652 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001653 depends on KEXEC
1654 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001655 help
1656 Should the atags used to boot the kernel be exported in an "atags"
1657 file in procfs. Useful with kexec.
1658
Eric Miaoe69edc792010-07-05 15:56:50 +02001659config AUTO_ZRELADDR
1660 bool "Auto calculation of the decompressed kernel image address"
1661 depends on !ZBOOT_ROM && !ARCH_U300
1662 help
1663 ZRELADDR is the physical address where the decompressed kernel
1664 image will be placed. If AUTO_ZRELADDR is selected, the address
1665 will be determined at run-time by masking the current IP with
1666 0xf8000000. This assumes the zImage being placed in the first 128MB
1667 from start of memory.
1668
Linus Torvalds1da177e2005-04-16 15:20:36 -07001669endmenu
1670
Russell Kingac9d7ef2008-08-18 17:26:00 +01001671menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001672
Ben Dooks89c52ed2009-07-30 23:23:24 +01001673if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001674
1675source "drivers/cpufreq/Kconfig"
1676
Yong Shen64f102b2010-10-21 21:18:59 +08001677config CPU_FREQ_IMX
1678 tristate "CPUfreq driver for i.MX CPUs"
1679 depends on ARCH_MXC && CPU_FREQ
1680 help
1681 This enables the CPUfreq driver for i.MX CPUs.
1682
Linus Torvalds1da177e2005-04-16 15:20:36 -07001683config CPU_FREQ_SA1100
1684 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001685
1686config CPU_FREQ_SA1110
1687 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001688
1689config CPU_FREQ_INTEGRATOR
1690 tristate "CPUfreq driver for ARM Integrator CPUs"
1691 depends on ARCH_INTEGRATOR && CPU_FREQ
1692 default y
1693 help
1694 This enables the CPUfreq driver for ARM Integrator CPUs.
1695
1696 For details, take a look at <file:Documentation/cpu-freq>.
1697
1698 If in doubt, say Y.
1699
Russell King9e2697f2007-12-14 13:30:14 +00001700config CPU_FREQ_PXA
1701 bool
1702 depends on CPU_FREQ && ARCH_PXA && PXA25x
1703 default y
1704 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1705
Mark Brownb3748dd2009-06-15 11:23:20 +01001706config CPU_FREQ_S3C64XX
1707 bool "CPUfreq support for Samsung S3C64XX CPUs"
1708 depends on CPU_FREQ && CPU_S3C6410
1709
Ben Dooks9d56c022009-07-30 23:23:25 +01001710config CPU_FREQ_S3C
1711 bool
1712 help
1713 Internal configuration node for common cpufreq on Samsung SoC
1714
1715config CPU_FREQ_S3C24XX
1716 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1717 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1718 select CPU_FREQ_S3C
1719 help
1720 This enables the CPUfreq driver for the Samsung S3C24XX family
1721 of CPUs.
1722
1723 For details, take a look at <file:Documentation/cpu-freq>.
1724
1725 If in doubt, say N.
1726
1727config CPU_FREQ_S3C24XX_PLL
1728 bool "Support CPUfreq changing of PLL frequency"
1729 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1730 help
1731 Compile in support for changing the PLL frequency from the
1732 S3C24XX series CPUfreq driver. The PLL takes time to settle
1733 after a frequency change, so by default it is not enabled.
1734
1735 This also means that the PLL tables for the selected CPU(s) will
1736 be built which may increase the size of the kernel image.
1737
1738config CPU_FREQ_S3C24XX_DEBUG
1739 bool "Debug CPUfreq Samsung driver core"
1740 depends on CPU_FREQ_S3C24XX
1741 help
1742 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1743
1744config CPU_FREQ_S3C24XX_IODEBUG
1745 bool "Debug CPUfreq Samsung driver IO timing"
1746 depends on CPU_FREQ_S3C24XX
1747 help
1748 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1749
Ben Dookse6d197a2009-07-30 23:23:42 +01001750config CPU_FREQ_S3C24XX_DEBUGFS
1751 bool "Export debugfs for CPUFreq"
1752 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1753 help
1754 Export status information via debugfs.
1755
Linus Torvalds1da177e2005-04-16 15:20:36 -07001756endif
1757
Russell Kingac9d7ef2008-08-18 17:26:00 +01001758source "drivers/cpuidle/Kconfig"
1759
1760endmenu
1761
Linus Torvalds1da177e2005-04-16 15:20:36 -07001762menu "Floating point emulation"
1763
1764comment "At least one emulation must be selected"
1765
1766config FPE_NWFPE
1767 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001768 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001769 ---help---
1770 Say Y to include the NWFPE floating point emulator in the kernel.
1771 This is necessary to run most binaries. Linux does not currently
1772 support floating point hardware so you need to say Y here even if
1773 your machine has an FPA or floating point co-processor podule.
1774
1775 You may say N here if you are going to load the Acorn FPEmulator
1776 early in the bootup.
1777
1778config FPE_NWFPE_XP
1779 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001780 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001781 help
1782 Say Y to include 80-bit support in the kernel floating-point
1783 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1784 Note that gcc does not generate 80-bit operations by default,
1785 so in most cases this option only enlarges the size of the
1786 floating point emulator without any good reason.
1787
1788 You almost surely want to say N here.
1789
1790config FPE_FASTFPE
1791 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001792 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001793 ---help---
1794 Say Y here to include the FAST floating point emulator in the kernel.
1795 This is an experimental much faster emulator which now also has full
1796 precision for the mantissa. It does not support any exceptions.
1797 It is very simple, and approximately 3-6 times faster than NWFPE.
1798
1799 It should be sufficient for most programs. It may be not suitable
1800 for scientific calculations, but you have to check this for yourself.
1801 If you do not feel you need a faster FP emulation you should better
1802 choose NWFPE.
1803
1804config VFP
1805 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001806 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001807 help
1808 Say Y to include VFP support code in the kernel. This is needed
1809 if your hardware includes a VFP unit.
1810
1811 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1812 release notes and additional status information.
1813
1814 Say N if your target does not have VFP hardware.
1815
Catalin Marinas25ebee02007-09-25 15:22:24 +01001816config VFPv3
1817 bool
1818 depends on VFP
1819 default y if CPU_V7
1820
Catalin Marinasb5872db2008-01-10 19:16:17 +01001821config NEON
1822 bool "Advanced SIMD (NEON) Extension support"
1823 depends on VFPv3 && CPU_V7
1824 help
1825 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1826 Extension.
1827
Linus Torvalds1da177e2005-04-16 15:20:36 -07001828endmenu
1829
1830menu "Userspace binary formats"
1831
1832source "fs/Kconfig.binfmt"
1833
1834config ARTHUR
1835 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001836 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001837 help
1838 Say Y here to include the kernel code necessary if you want to run
1839 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1840 experimental; if this sounds frightening, say N and sleep in peace.
1841 You can also say M here to compile this support as a module (which
1842 will be called arthur).
1843
1844endmenu
1845
1846menu "Power management options"
1847
Russell Kingeceab4a2005-11-15 11:31:41 +00001848source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001849
Johannes Bergf4cb5702007-12-08 02:14:00 +01001850config ARCH_SUSPEND_POSSIBLE
1851 def_bool y
1852
Linus Torvalds1da177e2005-04-16 15:20:36 -07001853endmenu
1854
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001855source "net/Kconfig"
1856
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001857source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001858
1859source "fs/Kconfig"
1860
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861source "arch/arm/Kconfig.debug"
1862
1863source "security/Kconfig"
1864
1865source "crypto/Kconfig"
1866
1867source "lib/Kconfig"