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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 King5b0d4952010-12-15 21:23:13 +0000440 select HAVE_SCHED_CLOCK
Russell King485bdde2008-10-17 14:00:43 +0100441 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100442 help
Russell King3b938be2007-05-12 11:25:44 +0100443 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100444
Saeed Bisharaedabd382009-08-06 15:12:43 +0300445config ARCH_DOVE
446 bool "Marvell Dove"
447 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300448 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300449 select GENERIC_CLOCKEVENTS
450 select PLAT_ORION
451 help
452 Support for the Marvell Dove SoC 88AP510
453
Saeed Bishara651c74c2008-06-22 22:45:06 +0200454config ARCH_KIRKWOOD
455 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000456 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200457 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700458 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200459 select GENERIC_CLOCKEVENTS
460 select PLAT_ORION
461 help
462 Support for the following Marvell Kirkwood series SoCs:
463 88F6180, 88F6192 and 88F6281.
464
Russell King788c9702009-04-26 14:21:59 +0100465config ARCH_LOKI
466 bool "Marvell Loki (88RC8480)"
467 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100468 select GENERIC_CLOCKEVENTS
469 select PLAT_ORION
470 help
471 Support for the Marvell Loki (88RC8480) SoC.
472
Kevin Wells40805942010-07-27 08:49:04 -0700473config ARCH_LPC32XX
474 bool "NXP LPC32XX"
475 select CPU_ARM926T
476 select ARCH_REQUIRE_GPIOLIB
477 select HAVE_IDE
478 select ARM_AMBA
479 select USB_ARCH_HAS_OHCI
480 select COMMON_CLKDEV
481 select GENERIC_TIME
482 select GENERIC_CLOCKEVENTS
483 help
484 Support for the NXP LPC32XX family of processors
485
Russell King788c9702009-04-26 14:21:59 +0100486config ARCH_MV78XX0
487 bool "Marvell MV78xx0"
488 select CPU_FEROCEON
489 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700490 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100491 select GENERIC_CLOCKEVENTS
492 select PLAT_ORION
493 help
494 Support for the following Marvell MV78xx0 series SoCs:
495 MV781x0, MV782x0.
496
497config ARCH_ORION5X
498 bool "Marvell Orion"
499 depends on MMU
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 Orion 5x series SoCs:
507 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
508 Orion-2 (5281), Orion-1-90 (6183).
509
510config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500511 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100512 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100513 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100514 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100515 select GENERIC_CLOCKEVENTS
516 select TICK_ONESHOT
517 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400518 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100519 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500520 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100521
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100522config ARCH_KS8695
523 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000524 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100525 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000526 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100527 help
528 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
529 System-on-Chip devices.
530
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100531config ARCH_NS9XXX
532 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000533 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100534 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100535 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700536 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100537 help
538 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
539 System.
540
541 <http://www.digi.com/products/microprocessors/index.jsp>
542
Russell King788c9702009-04-26 14:21:59 +0100543config ARCH_W90X900
544 bool "Nuvoton W90X900 CPU"
545 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100546 select ARCH_REQUIRE_GPIOLIB
wanzongshun0e4a34b2009-06-10 15:50:44 +0100547 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100548 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200549 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100550 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
551 At present, the w90x900 has been renamed nuc900, regarding
552 the ARM series product line, you can login the following
553 link address to know more.
554
555 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
556 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400557
wanzongshuna62e9032009-12-31 15:06:05 +0100558config ARCH_NUC93X
559 bool "Nuvoton NUC93X CPU"
560 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100561 select COMMON_CLKDEV
562 help
563 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
564 low-power and high performance MPEG-4/JPEG multimedia controller chip.
565
Erik Gillingc5f80062010-01-21 16:53:02 -0800566config ARCH_TEGRA
567 bool "NVIDIA Tegra"
568 select GENERIC_TIME
569 select GENERIC_CLOCKEVENTS
570 select GENERIC_GPIO
571 select HAVE_CLK
Colin Crossd8611962010-01-28 16:40:29 -0800572 select COMMON_CLKDEV
Erik Gillingc5f80062010-01-21 16:53:02 -0800573 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700574 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800575 help
576 This enables support for NVIDIA Tegra based systems (Tegra APX,
577 Tegra 6xx and Tegra 2 series).
578
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100579config ARCH_PNX4008
580 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000581 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000582 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000583 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100584 help
585 This enables support for Philips PNX4008 mobile platform.
586
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700588 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100589 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500590 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100591 select ARCH_HAS_CPUFREQ
Russell King8c3abc72008-11-08 20:25:21 +0000592 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700593 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100594 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000595 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800596 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800597 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000598 help
eric miao2c8086a2007-09-11 19:13:17 -0700599 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600
Russell King788c9702009-04-26 14:21:59 +0100601config ARCH_MSM
602 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500603 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800604 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700605 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800606 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800607 Support for Qualcomm MSM/QSD based systems. This runs on the
608 apps processor of the MSM/QSD and depends on a shared memory
609 interface to the modem processor which runs the baseband
610 stack and controls some vital subsystems
611 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800612
Magnus Dammc793c1b2010-02-05 11:14:49 +0000613config ARCH_SHMOBILE
614 bool "Renesas SH-Mobile"
615 help
616 Support for Renesas's SH-Mobile ARM platforms
617
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618config ARCH_RPC
619 bool "RiscPC"
620 select ARCH_ACORN
621 select FIQ
622 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100623 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100624 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000625 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000626 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100627 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000628 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629 help
630 On the Acorn Risc-PC, Linux can support the internal IDE disk and
631 CD-ROM interface, serial and parallel port, and the floppy drive.
632
633config ARCH_SA1100
634 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000635 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100636 select ISA
Russell King05944d72006-11-30 20:43:51 +0000637 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500638 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100639 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000640 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100641 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700642 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100643 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700644 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000645 help
646 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647
648config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900649 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800650 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100651 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700652 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000653 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900654 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655 help
656 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
657 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000658 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659
Ben Dooks63b1f512010-04-30 16:32:26 +0900660 Note, the S3C2416 and the S3C2450 are so close that they even share
661 the same SoC ID code. This means that there is no seperate machine
662 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
663
Ben Dooksa08ab632008-10-21 14:06:39 +0100664config ARCH_S3C64XX
665 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000666 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900667 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900668 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100669 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900670 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000671 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100672 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900673 select ARCH_REQUIRE_GPIOLIB
674 select SAMSUNG_CLKSRC
675 select SAMSUNG_IRQ_VIC_TIMER
676 select SAMSUNG_IRQ_UART
677 select S3C_GPIO_TRACK
678 select S3C_GPIO_PULL_UPDOWN
679 select S3C_GPIO_CFG_S3C24XX
680 select S3C_GPIO_CFG_S3C64XX
681 select S3C_DEV_NAND
682 select USB_ARCH_HAS_OHCI
683 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900684 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900685 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100686 help
687 Samsung S3C64XX series based systems
688
Kukjin Kim49b7a492010-09-07 15:47:18 +0900689config ARCH_S5P64X0
690 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900691 select CPU_V6
692 select GENERIC_GPIO
693 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900694 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900695 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900696 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900697 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900698 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900699 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
700 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900701
Kukjin Kim550db7f2010-01-29 10:19:26 +0900702config ARCH_S5P6442
703 bool "Samsung S5P6442"
704 select CPU_V6
705 select GENERIC_GPIO
706 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900707 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900708 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900709 help
710 Samsung S5P6442 CPU based systems
711
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200712config ARCH_S5PC100
713 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900714 select GENERIC_GPIO
715 select HAVE_CLK
716 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100717 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900718 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900719 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900720 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900721 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900722 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200723 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900724
Kukjin Kim170f4e42010-02-24 16:40:44 +0900725config ARCH_S5PV210
726 bool "Samsung S5PV210/S5PC110"
727 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900728 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900729 select GENERIC_GPIO
730 select HAVE_CLK
731 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900732 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900733 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900734 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900735 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900736 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900737 help
738 Samsung S5PV210/S5PC110 series based systems
739
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900740config ARCH_S5PV310
741 bool "Samsung S5PV310/S5PC210"
742 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900743 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900744 select GENERIC_GPIO
745 select HAVE_CLK
746 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900747 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900748 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900749 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900750 help
751 Samsung S5PV310 series based systems
752
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753config ARCH_SHARK
754 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000755 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100756 select ISA
757 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100758 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100759 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000760 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000761 help
762 Support for the StrongARM based Digital DNARD machine, also known
763 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700764
Hans J. Koch83ef3332010-09-17 18:13:56 +0200765config ARCH_TCC_926
766 bool "Telechips TCC ARM926-based systems"
767 select CPU_ARM926T
768 select HAVE_CLK
769 select COMMON_CLKDEV
770 select GENERIC_CLOCKEVENTS
771 help
772 Support for Telechips TCC ARM926-based systems.
773
Linus Torvalds1da177e2005-04-16 15:20:36 -0700774config ARCH_LH7A40X
775 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000776 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100777 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000778 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779 help
780 Say Y here for systems based on one of the Sharp LH7A40X
781 System on a Chip processors. These CPUs include an ARM922T
782 core with a wide array of integrated devices for
783 hand-held and low-power applications.
784
Linus Walleijd98aac72009-04-27 10:21:46 +0100785config ARCH_U300
786 bool "ST-Ericsson U300 Series"
787 depends on MMU
788 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100789 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100790 select ARM_AMBA
791 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100792 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100793 select COMMON_CLKDEV
794 select GENERIC_GPIO
795 help
796 Support for ST-Ericsson U300 series mobile platforms.
797
Russell Kingccf50e22010-03-15 19:03:06 +0000798config ARCH_U8500
799 bool "ST-Ericsson U8500 Series"
800 select CPU_V7
801 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000802 select GENERIC_CLOCKEVENTS
803 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100804 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000805 help
806 Support for ST-Ericsson's Ux500 architecture
807
808config ARCH_NOMADIK
809 bool "STMicroelectronics Nomadik"
810 select ARM_AMBA
811 select ARM_VIC
812 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000813 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000814 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000815 select ARCH_REQUIRE_GPIOLIB
816 help
817 Support for the Nomadik platform by ST-Ericsson
818
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100819config ARCH_DAVINCI
820 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100821 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700822 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100823 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700824 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700825 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700826 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530827 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100828 help
829 Support for TI's DaVinci platform.
830
Russell King3b938be2007-05-12 11:25:44 +0100831config ARCH_OMAP
832 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700833 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700834 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100835 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700836 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800837 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100838 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200839 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100840
viresh kumarcee37e52010-04-01 12:31:05 +0100841config PLAT_SPEAR
842 bool "ST SPEAr"
843 select ARM_AMBA
844 select ARCH_REQUIRE_GPIOLIB
845 select COMMON_CLKDEV
846 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100847 select HAVE_CLK
848 help
849 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
850
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851endchoice
852
Russell Kingccf50e22010-03-15 19:03:06 +0000853#
854# This is sorted alphabetically by mach-* pathname. However, plat-*
855# Kconfigs may be included either alphabetically (according to the
856# plat- suffix) or along side the corresponding mach-* source.
857#
Russell King95b8f202010-01-14 11:43:54 +0000858source "arch/arm/mach-aaec2000/Kconfig"
859
860source "arch/arm/mach-at91/Kconfig"
861
862source "arch/arm/mach-bcmring/Kconfig"
863
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864source "arch/arm/mach-clps711x/Kconfig"
865
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300866source "arch/arm/mach-cns3xxx/Kconfig"
867
Russell King95b8f202010-01-14 11:43:54 +0000868source "arch/arm/mach-davinci/Kconfig"
869
870source "arch/arm/mach-dove/Kconfig"
871
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000872source "arch/arm/mach-ep93xx/Kconfig"
873
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874source "arch/arm/mach-footbridge/Kconfig"
875
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200876source "arch/arm/mach-gemini/Kconfig"
877
Russell King95b8f202010-01-14 11:43:54 +0000878source "arch/arm/mach-h720x/Kconfig"
879
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880source "arch/arm/mach-integrator/Kconfig"
881
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100882source "arch/arm/mach-iop32x/Kconfig"
883
884source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885
Dan Williams285f5fa2006-12-07 02:59:39 +0100886source "arch/arm/mach-iop13xx/Kconfig"
887
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888source "arch/arm/mach-ixp4xx/Kconfig"
889
890source "arch/arm/mach-ixp2000/Kconfig"
891
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100892source "arch/arm/mach-ixp23xx/Kconfig"
893
Russell King95b8f202010-01-14 11:43:54 +0000894source "arch/arm/mach-kirkwood/Kconfig"
895
896source "arch/arm/mach-ks8695/Kconfig"
897
898source "arch/arm/mach-lh7a40x/Kconfig"
899
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200900source "arch/arm/mach-loki/Kconfig"
901
Kevin Wells40805942010-07-27 08:49:04 -0700902source "arch/arm/mach-lpc32xx/Kconfig"
903
Russell King95b8f202010-01-14 11:43:54 +0000904source "arch/arm/mach-msm/Kconfig"
905
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200906source "arch/arm/mach-mv78xx0/Kconfig"
907
Russell King95b8f202010-01-14 11:43:54 +0000908source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909
Russell King95b8f202010-01-14 11:43:54 +0000910source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800911
Russell King95b8f202010-01-14 11:43:54 +0000912source "arch/arm/mach-nomadik/Kconfig"
913source "arch/arm/plat-nomadik/Kconfig"
914
915source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916
Russell Kingd91a89102010-02-04 18:13:17 +0000917source "arch/arm/mach-nuc93x/Kconfig"
918
Tony Lindgrend48af152005-07-10 19:58:17 +0100919source "arch/arm/plat-omap/Kconfig"
920
921source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922
Tony Lindgren1dbae812005-11-10 14:26:51 +0000923source "arch/arm/mach-omap2/Kconfig"
924
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400925source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400926
Russell King95b8f202010-01-14 11:43:54 +0000927source "arch/arm/mach-pxa/Kconfig"
928source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929
Russell King95b8f202010-01-14 11:43:54 +0000930source "arch/arm/mach-mmp/Kconfig"
931
932source "arch/arm/mach-realview/Kconfig"
933
934source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300935
Ben Dookscf383672009-11-10 00:14:58 +0000936source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100937source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900938source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100939
viresh kumarcee37e52010-04-01 12:31:05 +0100940source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100941
Hans J. Koch83ef3332010-09-17 18:13:56 +0200942source "arch/arm/plat-tcc/Kconfig"
943
Ben Dooksa21765a2007-02-11 18:31:01 +0100944if ARCH_S3C2410
945source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100947source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900948source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100949source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100950source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100951endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952
Ben Dooksa08ab632008-10-21 14:06:39 +0100953if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900954source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100955endif
956
Kukjin Kim49b7a492010-09-07 15:47:18 +0900957source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900958
Kukjin Kim550db7f2010-01-29 10:19:26 +0900959source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100960
Byungho Min5a7652f2009-06-23 21:39:42 +0900961source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900962
Kukjin Kim170f4e42010-02-24 16:40:44 +0900963source "arch/arm/mach-s5pv210/Kconfig"
964
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900965source "arch/arm/mach-s5pv310/Kconfig"
966
Russell King882d01f2010-03-02 23:40:15 +0000967source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968
Russell King882d01f2010-03-02 23:40:15 +0000969source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800970
Erik Gillingc5f80062010-01-21 16:53:02 -0800971source "arch/arm/mach-tegra/Kconfig"
972
Russell King95b8f202010-01-14 11:43:54 +0000973source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100974
Russell King95b8f202010-01-14 11:43:54 +0000975source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976
977source "arch/arm/mach-versatile/Kconfig"
978
Russell Kingceade892010-02-11 21:44:53 +0000979source "arch/arm/mach-vexpress/Kconfig"
980
wanzongshun7ec80dd2008-12-03 03:55:38 +0100981source "arch/arm/mach-w90x900/Kconfig"
982
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983# Definitions to make life easier
984config ARCH_ACORN
985 bool
986
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100987config PLAT_IOP
988 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700989 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100990
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400991config PLAT_ORION
992 bool
993
Eric Miaobd5ce432009-01-20 12:06:01 +0800994config PLAT_PXA
995 bool
996
Russell Kingf4b8b312010-01-14 12:48:06 +0000997config PLAT_VERSATILE
998 bool
999
Russell Kinge3887712010-01-14 13:30:16 +00001000config ARM_TIMER_SP804
1001 bool
1002
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003source arch/arm/mm/Kconfig
1004
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001005config IWMMXT
1006 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +08001007 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
1008 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001009 help
1010 Enable support for iWMMXt context switching at run time if
1011 running on a CPU that supports it.
1012
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1014config XSCALE_PMU
1015 bool
1016 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1017 default y
1018
Jamie Iles0f4f0672010-02-02 20:23:15 +01001019config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001020 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1021 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001022 default y
1023 bool
1024
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001025if !MMU
1026source "arch/arm/Kconfig-nommu"
1027endif
1028
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001029config ARM_ERRATA_411920
1030 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001031 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001032 help
1033 Invalidation of the Instruction Cache operation can
1034 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1035 It does not affect the MPCore. This option enables the ARM Ltd.
1036 recommended workaround.
1037
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001038config ARM_ERRATA_430973
1039 bool "ARM errata: Stale prediction on replaced interworking branch"
1040 depends on CPU_V7
1041 help
1042 This option enables the workaround for the 430973 Cortex-A8
1043 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1044 interworking branch is replaced with another code sequence at the
1045 same virtual address, whether due to self-modifying code or virtual
1046 to physical address re-mapping, Cortex-A8 does not recover from the
1047 stale interworking branch prediction. This results in Cortex-A8
1048 executing the new code sequence in the incorrect ARM or Thumb state.
1049 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1050 and also flushes the branch target cache at every context switch.
1051 Note that setting specific bits in the ACTLR register may not be
1052 available in non-secure mode.
1053
Catalin Marinas855c5512009-04-30 17:06:15 +01001054config ARM_ERRATA_458693
1055 bool "ARM errata: Processor deadlock when a false hazard is created"
1056 depends on CPU_V7
1057 help
1058 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1059 erratum. For very specific sequences of memory operations, it is
1060 possible for a hazard condition intended for a cache line to instead
1061 be incorrectly associated with a different cache line. This false
1062 hazard might then cause a processor deadlock. The workaround enables
1063 the L1 caching of the NEON accesses and disables the PLD instruction
1064 in the ACTLR register. Note that setting specific bits in the ACTLR
1065 register may not be available in non-secure mode.
1066
Catalin Marinas0516e462009-04-30 17:06:20 +01001067config ARM_ERRATA_460075
1068 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1069 depends on CPU_V7
1070 help
1071 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1072 erratum. Any asynchronous access to the L2 cache may encounter a
1073 situation in which recent store transactions to the L2 cache are lost
1074 and overwritten with stale memory contents from external memory. The
1075 workaround disables the write-allocate mode for the L2 cache via the
1076 ACTLR register. Note that setting specific bits in the ACTLR register
1077 may not be available in non-secure mode.
1078
Will Deacon9f050272010-09-14 09:51:43 +01001079config ARM_ERRATA_742230
1080 bool "ARM errata: DMB operation may be faulty"
1081 depends on CPU_V7 && SMP
1082 help
1083 This option enables the workaround for the 742230 Cortex-A9
1084 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1085 between two write operations may not ensure the correct visibility
1086 ordering of the two writes. This workaround sets a specific bit in
1087 the diagnostic register of the Cortex-A9 which causes the DMB
1088 instruction to behave as a DSB, ensuring the correct behaviour of
1089 the two writes.
1090
Will Deacona672e992010-09-14 09:53:02 +01001091config ARM_ERRATA_742231
1092 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1093 depends on CPU_V7 && SMP
1094 help
1095 This option enables the workaround for the 742231 Cortex-A9
1096 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1097 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1098 accessing some data located in the same cache line, may get corrupted
1099 data due to bad handling of the address hazard when the line gets
1100 replaced from one of the CPUs at the same time as another CPU is
1101 accessing it. This workaround sets specific bits in the diagnostic
1102 register of the Cortex-A9 which reduces the linefill issuing
1103 capabilities of the processor.
1104
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001105config PL310_ERRATA_588369
1106 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1107 depends on CACHE_L2X0 && ARCH_OMAP4
1108 help
1109 The PL310 L2 cache controller implements three types of Clean &
1110 Invalidate maintenance operations: by Physical Address
1111 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1112 They are architecturally defined to behave as the execution of a
1113 clean operation followed immediately by an invalidate operation,
1114 both performing to the same memory location. This functionality
1115 is not correctly implemented in PL310 as clean lines are not
1116 invalidated as a result of these operations. Note that this errata
1117 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001118
1119config ARM_ERRATA_720789
1120 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1121 depends on CPU_V7 && SMP
1122 help
1123 This option enables the workaround for the 720789 Cortex-A9 (prior to
1124 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1125 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1126 As a consequence of this erratum, some TLB entries which should be
1127 invalidated are not, resulting in an incoherency in the system page
1128 tables. The workaround changes the TLB flushing routines to invalidate
1129 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001130
1131config ARM_ERRATA_743622
1132 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1133 depends on CPU_V7
1134 help
1135 This option enables the workaround for the 743622 Cortex-A9
1136 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1137 optimisation in the Cortex-A9 Store Buffer may lead to data
1138 corruption. This workaround sets a specific bit in the diagnostic
1139 register of the Cortex-A9 which disables the Store Buffer
1140 optimisation, preventing the defect from occurring. This has no
1141 visible impact on the overall performance or power consumption of the
1142 processor.
1143
Linus Torvalds1da177e2005-04-16 15:20:36 -07001144endmenu
1145
1146source "arch/arm/common/Kconfig"
1147
Linus Torvalds1da177e2005-04-16 15:20:36 -07001148menu "Bus support"
1149
1150config ARM_AMBA
1151 bool
1152
1153config ISA
1154 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155 help
1156 Find out whether you have ISA slots on your motherboard. ISA is the
1157 name of a bus system, i.e. the way the CPU talks to the other stuff
1158 inside your box. Other bus systems are PCI, EISA, MicroChannel
1159 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1160 newer boards don't support it. If you have ISA, say Y, otherwise N.
1161
Russell King065909b2006-01-04 15:44:16 +00001162# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001163config ISA_DMA
1164 bool
Russell King065909b2006-01-04 15:44:16 +00001165 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001166
Russell King065909b2006-01-04 15:44:16 +00001167# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001168config ISA_DMA_API
1169 bool
Al Viro5cae8412005-05-04 05:39:22 +01001170
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171config PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +04001172 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 -07001173 help
1174 Find out whether you have a PCI motherboard. PCI is the name of a
1175 bus system, i.e. the way the CPU talks to the other stuff inside
1176 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1177 VESA. If you have PCI, say Y, otherwise N.
1178
Anton Vorontsov52882172010-04-19 13:20:49 +01001179config PCI_DOMAINS
1180 bool
1181 depends on PCI
1182
Matthew Wilcox36e23592007-07-10 10:54:40 -06001183config PCI_SYSCALL
1184 def_bool PCI
1185
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186# Select the host bridge type
1187config PCI_HOST_VIA82C505
1188 bool
1189 depends on PCI && ARCH_SHARK
1190 default y
1191
Mike Rapoporta0113a92007-11-25 08:55:34 +01001192config PCI_HOST_ITE8152
1193 bool
1194 depends on PCI && MACH_ARMCORE
1195 default y
1196 select DMABOUNCE
1197
Linus Torvalds1da177e2005-04-16 15:20:36 -07001198source "drivers/pci/Kconfig"
1199
1200source "drivers/pcmcia/Kconfig"
1201
1202endmenu
1203
1204menu "Kernel Features"
1205
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001206source "kernel/time/Kconfig"
1207
Linus Torvalds1da177e2005-04-16 15:20:36 -07001208config SMP
1209 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001210 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001211 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001212 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001213 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1214 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
1215 ARCH_MSM_SCORPIONMP
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001216 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001217 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001218 help
1219 This enables support for systems with more than one CPU. If you have
1220 a system with only one CPU, like most personal computers, say N. If
1221 you have a system with more than one CPU, say Y.
1222
1223 If you say N here, the kernel will run on single and multiprocessor
1224 machines, but will use only one CPU of a multiprocessor machine. If
1225 you say Y here, the kernel will run on many, but not all, single
1226 processor machines. On a single processor machine, the kernel will
1227 run faster if you say N here.
1228
Adrian Bunk03502fa2008-02-03 15:50:21 +02001229 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001230 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001231 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001232
1233 If you don't know what to do here, say N.
1234
Russell Kingf00ec482010-09-04 10:47:48 +01001235config SMP_ON_UP
1236 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1237 depends on EXPERIMENTAL
1238 depends on SMP && !XIP && !THUMB2_KERNEL
1239 default y
1240 help
1241 SMP kernels contain instructions which fail on non-SMP processors.
1242 Enabling this option allows the kernel to modify itself to make
1243 these instructions safe. Disabling it allows about 1K of space
1244 savings.
1245
1246 If you don't know what to do here, say Y.
1247
Russell Kinga8cbcd92009-05-16 11:51:14 +01001248config HAVE_ARM_SCU
1249 bool
1250 depends on SMP
1251 help
1252 This option enables support for the ARM system coherency unit
1253
Russell Kingf32f4ce2009-05-16 12:14:21 +01001254config HAVE_ARM_TWD
1255 bool
1256 depends on SMP
1257 help
1258 This options enables support for the ARM timer and watchdog unit
1259
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001260choice
1261 prompt "Memory split"
1262 default VMSPLIT_3G
1263 help
1264 Select the desired split between kernel and user memory.
1265
1266 If you are not absolutely sure what you are doing, leave this
1267 option alone!
1268
1269 config VMSPLIT_3G
1270 bool "3G/1G user/kernel split"
1271 config VMSPLIT_2G
1272 bool "2G/2G user/kernel split"
1273 config VMSPLIT_1G
1274 bool "1G/3G user/kernel split"
1275endchoice
1276
1277config PAGE_OFFSET
1278 hex
1279 default 0x40000000 if VMSPLIT_1G
1280 default 0x80000000 if VMSPLIT_2G
1281 default 0xC0000000
1282
Linus Torvalds1da177e2005-04-16 15:20:36 -07001283config NR_CPUS
1284 int "Maximum number of CPUs (2-32)"
1285 range 2 32
1286 depends on SMP
1287 default "4"
1288
Russell Kinga054a812005-11-02 22:24:33 +00001289config HOTPLUG_CPU
1290 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1291 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001292 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001293 help
1294 Say Y here to experiment with turning CPUs off and on. CPUs
1295 can be controlled through /sys/devices/system/cpu.
1296
Russell King37ee16a2005-11-08 19:08:05 +00001297config LOCAL_TIMERS
1298 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001299 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001300 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001301 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001302 help
1303 Enable support for local timers on SMP platforms, rather then the
1304 legacy IPI broadcast method. Local timers allows the system
1305 accounting to be spread across the timer interval, preventing a
1306 "thundering herd" at every timer tick.
1307
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001308source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309
Russell Kingf8065812006-03-02 22:41:59 +00001310config HZ
1311 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001312 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001313 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001314 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001315 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001316 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001317 default 100
1318
Catalin Marinas16c79652009-07-24 12:33:02 +01001319config THUMB2_KERNEL
1320 bool "Compile the kernel in Thumb-2 mode"
1321 depends on CPU_V7 && EXPERIMENTAL
1322 select AEABI
1323 select ARM_ASM_UNIFIED
1324 help
1325 By enabling this option, the kernel will be compiled in
1326 Thumb-2 mode. A compiler/assembler that understand the unified
1327 ARM-Thumb syntax is needed.
1328
1329 If unsure, say N.
1330
Catalin Marinas0becb082009-07-24 12:32:53 +01001331config ARM_ASM_UNIFIED
1332 bool
1333
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001334config AEABI
1335 bool "Use the ARM EABI to compile the kernel"
1336 help
1337 This option allows for the kernel to be compiled using the latest
1338 ARM ABI (aka EABI). This is only useful if you are using a user
1339 space environment that is also compiled with EABI.
1340
1341 Since there are major incompatibilities between the legacy ABI and
1342 EABI, especially with regard to structure member alignment, this
1343 option also changes the kernel syscall calling convention to
1344 disambiguate both ABIs and allow for backward compatibility support
1345 (selected with CONFIG_OABI_COMPAT).
1346
1347 To use this you need GCC version 4.0.0 or later.
1348
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001349config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001350 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001351 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001352 default y
1353 help
1354 This option preserves the old syscall interface along with the
1355 new (ARM EABI) one. It also provides a compatibility layer to
1356 intercept syscalls that have structure arguments which layout
1357 in memory differs between the legacy ABI and the new ARM EABI
1358 (only for non "thumb" binaries). This option adds a tiny
1359 overhead to all syscalls and produces a slightly larger kernel.
1360 If you know you'll be using only pure EABI user space then you
1361 can say N here. If this option is not selected and you attempt
1362 to execute a legacy ABI binary then the result will be
1363 UNPREDICTABLE (in fact it can be predicted that it won't work
1364 at all). If in doubt say Y.
1365
Mel Gormaneb335752009-05-13 17:34:48 +01001366config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001367 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001368
Russell King05944d72006-11-30 20:43:51 +00001369config ARCH_SPARSEMEM_ENABLE
1370 bool
1371
Russell King07a2f732008-10-01 21:39:58 +01001372config ARCH_SPARSEMEM_DEFAULT
1373 def_bool ARCH_SPARSEMEM_ENABLE
1374
Russell King05944d72006-11-30 20:43:51 +00001375config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001376 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001377
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001378config HIGHMEM
1379 bool "High Memory Support (EXPERIMENTAL)"
1380 depends on MMU && EXPERIMENTAL
1381 help
1382 The address space of ARM processors is only 4 Gigabytes large
1383 and it has to accommodate user address space, kernel address
1384 space as well as some memory mapped IO. That means that, if you
1385 have a large amount of physical memory and/or IO, not all of the
1386 memory can be "permanently mapped" by the kernel. The physical
1387 memory that is not permanently mapped is called "high memory".
1388
1389 Depending on the selected kernel/user memory split, minimum
1390 vmalloc space and actual amount of RAM, you may not need this
1391 option which should result in a slightly faster kernel.
1392
1393 If unsure, say n.
1394
Russell King65cec8e2009-08-17 20:02:06 +01001395config HIGHPTE
1396 bool "Allocate 2nd-level pagetables from highmem"
1397 depends on HIGHMEM
1398 depends on !OUTER_CACHE
1399
Jamie Iles1b8873a2010-02-02 20:25:44 +01001400config HW_PERF_EVENTS
1401 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001402 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001403 default y
1404 help
1405 Enable hardware performance counter support for perf events. If
1406 disabled, perf events will use software events only.
1407
eric miao354e6f72010-06-25 09:46:09 +01001408config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001409 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001410 help
1411 This enables support for sparse irqs. This is useful in general
1412 as most CPUs have a fairly sparse array of IRQ vectors, which
1413 the irq_desc then maps directly on to. Systems with a high
1414 number of off-chip IRQs will want to treat this as
1415 experimental until they have been independently verified.
1416
Dave Hansen3f22ab22005-06-23 00:07:43 -07001417source "mm/Kconfig"
1418
Magnus Dammc1b2d972010-07-05 10:00:11 +01001419config FORCE_MAX_ZONEORDER
1420 int "Maximum zone order" if ARCH_SHMOBILE
1421 range 11 64 if ARCH_SHMOBILE
1422 default "9" if SA1111
1423 default "11"
1424 help
1425 The kernel memory allocator divides physically contiguous memory
1426 blocks into "zones", where each zone is a power of two number of
1427 pages. This option selects the largest power of two that the kernel
1428 keeps in the memory allocator. If you need to allocate very large
1429 blocks of physically contiguous memory, then you may need to
1430 increase this value.
1431
1432 This config option is actually maximum order plus one. For example,
1433 a value of 11 means that the largest free memory block is 2^10 pages.
1434
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435config LEDS
1436 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001437 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001438 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1440 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001441 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001442 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001443 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444 help
1445 If you say Y here, the LEDs on your machine will be used
1446 to provide useful information about your current system status.
1447
1448 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1449 be able to select which LEDs are active using the options below. If
1450 you are compiling a kernel for the EBSA-110 or the LART however, the
1451 red LED will simply flash regularly to indicate that the system is
1452 still functional. It is safe to say Y here if you have a CATS
1453 system, but the driver will do nothing.
1454
1455config LEDS_TIMER
1456 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001457 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1458 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001459 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001460 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461 default y if ARCH_EBSA110
1462 help
1463 If you say Y here, one of the system LEDs (the green one on the
1464 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1465 will flash regularly to indicate that the system is still
1466 operational. This is mainly useful to kernel hackers who are
1467 debugging unstable kernels.
1468
1469 The LART uses the same LED for both Timer LED and CPU usage LED
1470 functions. You may choose to use both, but the Timer LED function
1471 will overrule the CPU usage LED.
1472
1473config LEDS_CPU
1474 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001475 !ARCH_OMAP) \
1476 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1477 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001478 depends on LEDS
1479 help
1480 If you say Y here, the red LED will be used to give a good real
1481 time indication of CPU usage, by lighting whenever the idle task
1482 is not currently executing.
1483
1484 The LART uses the same LED for both Timer LED and CPU usage LED
1485 functions. You may choose to use both, but the Timer LED function
1486 will overrule the CPU usage LED.
1487
1488config ALIGNMENT_TRAP
1489 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001490 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001491 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001492 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001493 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001494 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1496 address divisible by 4. On 32-bit ARM processors, these non-aligned
1497 fetch/store instructions will be emulated in software if you say
1498 here, which has a severe performance impact. This is necessary for
1499 correct operation of some network protocols. With an IP-only
1500 configuration it is safe to say N, otherwise say Y.
1501
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001502config UACCESS_WITH_MEMCPY
1503 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1504 depends on MMU && EXPERIMENTAL
1505 default y if CPU_FEROCEON
1506 help
1507 Implement faster copy_to_user and clear_user methods for CPU
1508 cores where a 8-word STM instruction give significantly higher
1509 memory write throughput than a sequence of individual 32bit stores.
1510
1511 A possible side effect is a slight increase in scheduling latency
1512 between threads sharing the same address space if they invoke
1513 such copy operations with large buffers.
1514
1515 However, if the CPU data cache is using a write-allocate mode,
1516 this option is unlikely to provide any performance gain.
1517
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001518config SECCOMP
1519 bool
1520 prompt "Enable seccomp to safely compute untrusted bytecode"
1521 ---help---
1522 This kernel feature is useful for number crunching applications
1523 that may need to compute untrusted bytecode during their
1524 execution. By using pipes or other transports made available to
1525 the process as file descriptors supporting the read/write
1526 syscalls, it's possible to isolate those applications in
1527 their own address space using seccomp. Once seccomp is
1528 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1529 and the task is only allowed to execute a few safe syscalls
1530 defined by each seccomp mode.
1531
Nicolas Pitrec743f382010-05-24 23:55:42 -04001532config CC_STACKPROTECTOR
1533 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1534 help
1535 This option turns on the -fstack-protector GCC feature. This
1536 feature puts, at the beginning of functions, a canary value on
1537 the stack just before the return address, and validates
1538 the value just before actually returning. Stack based buffer
1539 overflows (that need to overwrite this return address) now also
1540 overwrite the canary, which gets detected and the attack is then
1541 neutralized via a kernel panic.
1542 This feature requires gcc version 4.2 or above.
1543
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001544config DEPRECATED_PARAM_STRUCT
1545 bool "Provide old way to pass kernel parameters"
1546 help
1547 This was deprecated in 2001 and announced to live on for 5 years.
1548 Some old boot loaders still use this way.
1549
Linus Torvalds1da177e2005-04-16 15:20:36 -07001550endmenu
1551
1552menu "Boot options"
1553
1554# Compressed boot loader in ROM. Yes, we really want to ask about
1555# TEXT and BSS so we preserve their values in the config files.
1556config ZBOOT_ROM_TEXT
1557 hex "Compressed ROM boot loader base address"
1558 default "0"
1559 help
1560 The physical address at which the ROM-able zImage is to be
1561 placed in the target. Platforms which normally make use of
1562 ROM-able zImage formats normally set this to a suitable
1563 value in their defconfig file.
1564
1565 If ZBOOT_ROM is not enabled, this has no effect.
1566
1567config ZBOOT_ROM_BSS
1568 hex "Compressed ROM boot loader BSS address"
1569 default "0"
1570 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001571 The base address of an area of read/write memory in the target
1572 for the ROM-able zImage which must be available while the
1573 decompressor is running. It must be large enough to hold the
1574 entire decompressed kernel plus an additional 128 KiB.
1575 Platforms which normally make use of ROM-able zImage formats
1576 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001577
1578 If ZBOOT_ROM is not enabled, this has no effect.
1579
1580config ZBOOT_ROM
1581 bool "Compressed boot loader in ROM/flash"
1582 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1583 help
1584 Say Y here if you intend to execute your compressed kernel image
1585 (zImage) directly from ROM or flash. If unsure, say N.
1586
1587config CMDLINE
1588 string "Default kernel command string"
1589 default ""
1590 help
1591 On some architectures (EBSA110 and CATS), there is currently no way
1592 for the boot loader to pass arguments to the kernel. For these
1593 architectures, you should supply some command-line options at build
1594 time by entering them here. As a minimum, you should specify the
1595 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1596
Alexander Holler92d20402010-02-16 19:04:53 +01001597config CMDLINE_FORCE
1598 bool "Always use the default kernel command string"
1599 depends on CMDLINE != ""
1600 help
1601 Always use the default kernel command string, even if the boot
1602 loader passes other arguments to the kernel.
1603 This is useful if you cannot or don't want to change the
1604 command-line options your boot loader passes to the kernel.
1605
1606 If unsure, say N.
1607
Linus Torvalds1da177e2005-04-16 15:20:36 -07001608config XIP_KERNEL
1609 bool "Kernel Execute-In-Place from ROM"
1610 depends on !ZBOOT_ROM
1611 help
1612 Execute-In-Place allows the kernel to run from non-volatile storage
1613 directly addressable by the CPU, such as NOR flash. This saves RAM
1614 space since the text section of the kernel is not loaded from flash
1615 to RAM. Read-write sections, such as the data section and stack,
1616 are still copied to RAM. The XIP kernel is not compressed since
1617 it has to run directly from flash, so it will take more space to
1618 store it. The flash address used to link the kernel object files,
1619 and for storing it, is configuration dependent. Therefore, if you
1620 say Y here, you must know the proper physical address where to
1621 store the kernel image depending on your own flash memory usage.
1622
1623 Also note that the make target becomes "make xipImage" rather than
1624 "make zImage" or "make Image". The final kernel binary to put in
1625 ROM memory will be arch/arm/boot/xipImage.
1626
1627 If unsure, say N.
1628
1629config XIP_PHYS_ADDR
1630 hex "XIP Kernel Physical Location"
1631 depends on XIP_KERNEL
1632 default "0x00080000"
1633 help
1634 This is the physical address in your flash memory the kernel will
1635 be linked for and stored to. This address is dependent on your
1636 own flash usage.
1637
Richard Purdiec587e4a2007-02-06 21:29:00 +01001638config KEXEC
1639 bool "Kexec system call (EXPERIMENTAL)"
1640 depends on EXPERIMENTAL
1641 help
1642 kexec is a system call that implements the ability to shutdown your
1643 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001644 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001645 you can start any kernel with it, not just Linux.
1646
1647 It is an ongoing process to be certain the hardware in a machine
1648 is properly shutdown, so do not be surprised if this code does not
1649 initially work for you. It may help to enable device hotplugging
1650 support.
1651
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001652config ATAGS_PROC
1653 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001654 depends on KEXEC
1655 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001656 help
1657 Should the atags used to boot the kernel be exported in an "atags"
1658 file in procfs. Useful with kexec.
1659
Eric Miaoe69edc792010-07-05 15:56:50 +02001660config AUTO_ZRELADDR
1661 bool "Auto calculation of the decompressed kernel image address"
1662 depends on !ZBOOT_ROM && !ARCH_U300
1663 help
1664 ZRELADDR is the physical address where the decompressed kernel
1665 image will be placed. If AUTO_ZRELADDR is selected, the address
1666 will be determined at run-time by masking the current IP with
1667 0xf8000000. This assumes the zImage being placed in the first 128MB
1668 from start of memory.
1669
Linus Torvalds1da177e2005-04-16 15:20:36 -07001670endmenu
1671
Russell Kingac9d7ef2008-08-18 17:26:00 +01001672menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001673
Ben Dooks89c52ed2009-07-30 23:23:24 +01001674if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001675
1676source "drivers/cpufreq/Kconfig"
1677
Yong Shen64f102b2010-10-21 21:18:59 +08001678config CPU_FREQ_IMX
1679 tristate "CPUfreq driver for i.MX CPUs"
1680 depends on ARCH_MXC && CPU_FREQ
1681 help
1682 This enables the CPUfreq driver for i.MX CPUs.
1683
Linus Torvalds1da177e2005-04-16 15:20:36 -07001684config CPU_FREQ_SA1100
1685 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001686
1687config CPU_FREQ_SA1110
1688 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001689
1690config CPU_FREQ_INTEGRATOR
1691 tristate "CPUfreq driver for ARM Integrator CPUs"
1692 depends on ARCH_INTEGRATOR && CPU_FREQ
1693 default y
1694 help
1695 This enables the CPUfreq driver for ARM Integrator CPUs.
1696
1697 For details, take a look at <file:Documentation/cpu-freq>.
1698
1699 If in doubt, say Y.
1700
Russell King9e2697f2007-12-14 13:30:14 +00001701config CPU_FREQ_PXA
1702 bool
1703 depends on CPU_FREQ && ARCH_PXA && PXA25x
1704 default y
1705 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1706
Mark Brownb3748dd2009-06-15 11:23:20 +01001707config CPU_FREQ_S3C64XX
1708 bool "CPUfreq support for Samsung S3C64XX CPUs"
1709 depends on CPU_FREQ && CPU_S3C6410
1710
Ben Dooks9d56c022009-07-30 23:23:25 +01001711config CPU_FREQ_S3C
1712 bool
1713 help
1714 Internal configuration node for common cpufreq on Samsung SoC
1715
1716config CPU_FREQ_S3C24XX
1717 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1718 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1719 select CPU_FREQ_S3C
1720 help
1721 This enables the CPUfreq driver for the Samsung S3C24XX family
1722 of CPUs.
1723
1724 For details, take a look at <file:Documentation/cpu-freq>.
1725
1726 If in doubt, say N.
1727
1728config CPU_FREQ_S3C24XX_PLL
1729 bool "Support CPUfreq changing of PLL frequency"
1730 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1731 help
1732 Compile in support for changing the PLL frequency from the
1733 S3C24XX series CPUfreq driver. The PLL takes time to settle
1734 after a frequency change, so by default it is not enabled.
1735
1736 This also means that the PLL tables for the selected CPU(s) will
1737 be built which may increase the size of the kernel image.
1738
1739config CPU_FREQ_S3C24XX_DEBUG
1740 bool "Debug CPUfreq Samsung driver core"
1741 depends on CPU_FREQ_S3C24XX
1742 help
1743 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1744
1745config CPU_FREQ_S3C24XX_IODEBUG
1746 bool "Debug CPUfreq Samsung driver IO timing"
1747 depends on CPU_FREQ_S3C24XX
1748 help
1749 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1750
Ben Dookse6d197a2009-07-30 23:23:42 +01001751config CPU_FREQ_S3C24XX_DEBUGFS
1752 bool "Export debugfs for CPUFreq"
1753 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1754 help
1755 Export status information via debugfs.
1756
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757endif
1758
Russell Kingac9d7ef2008-08-18 17:26:00 +01001759source "drivers/cpuidle/Kconfig"
1760
1761endmenu
1762
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763menu "Floating point emulation"
1764
1765comment "At least one emulation must be selected"
1766
1767config FPE_NWFPE
1768 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001769 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770 ---help---
1771 Say Y to include the NWFPE floating point emulator in the kernel.
1772 This is necessary to run most binaries. Linux does not currently
1773 support floating point hardware so you need to say Y here even if
1774 your machine has an FPA or floating point co-processor podule.
1775
1776 You may say N here if you are going to load the Acorn FPEmulator
1777 early in the bootup.
1778
1779config FPE_NWFPE_XP
1780 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001781 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001782 help
1783 Say Y to include 80-bit support in the kernel floating-point
1784 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1785 Note that gcc does not generate 80-bit operations by default,
1786 so in most cases this option only enlarges the size of the
1787 floating point emulator without any good reason.
1788
1789 You almost surely want to say N here.
1790
1791config FPE_FASTFPE
1792 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001793 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794 ---help---
1795 Say Y here to include the FAST floating point emulator in the kernel.
1796 This is an experimental much faster emulator which now also has full
1797 precision for the mantissa. It does not support any exceptions.
1798 It is very simple, and approximately 3-6 times faster than NWFPE.
1799
1800 It should be sufficient for most programs. It may be not suitable
1801 for scientific calculations, but you have to check this for yourself.
1802 If you do not feel you need a faster FP emulation you should better
1803 choose NWFPE.
1804
1805config VFP
1806 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001807 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001808 help
1809 Say Y to include VFP support code in the kernel. This is needed
1810 if your hardware includes a VFP unit.
1811
1812 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1813 release notes and additional status information.
1814
1815 Say N if your target does not have VFP hardware.
1816
Catalin Marinas25ebee02007-09-25 15:22:24 +01001817config VFPv3
1818 bool
1819 depends on VFP
1820 default y if CPU_V7
1821
Catalin Marinasb5872db2008-01-10 19:16:17 +01001822config NEON
1823 bool "Advanced SIMD (NEON) Extension support"
1824 depends on VFPv3 && CPU_V7
1825 help
1826 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1827 Extension.
1828
Linus Torvalds1da177e2005-04-16 15:20:36 -07001829endmenu
1830
1831menu "Userspace binary formats"
1832
1833source "fs/Kconfig.binfmt"
1834
1835config ARTHUR
1836 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001837 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001838 help
1839 Say Y here to include the kernel code necessary if you want to run
1840 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1841 experimental; if this sounds frightening, say N and sleep in peace.
1842 You can also say M here to compile this support as a module (which
1843 will be called arthur).
1844
1845endmenu
1846
1847menu "Power management options"
1848
Russell Kingeceab4a2005-11-15 11:31:41 +00001849source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850
Johannes Bergf4cb5702007-12-08 02:14:00 +01001851config ARCH_SUSPEND_POSSIBLE
1852 def_bool y
1853
Linus Torvalds1da177e2005-04-16 15:20:36 -07001854endmenu
1855
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001856source "net/Kconfig"
1857
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001858source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001859
1860source "fs/Kconfig"
1861
Linus Torvalds1da177e2005-04-16 15:20:36 -07001862source "arch/arm/Kconfig.debug"
1863
1864source "security/Kconfig"
1865
1866source "crypto/Kconfig"
1867
1868source "lib/Kconfig"