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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
Russell King28bb7bc2010-12-15 21:46:48 +0000516 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100517 select TICK_ONESHOT
518 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400519 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100520 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500521 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100522
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100523config ARCH_KS8695
524 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000525 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100526 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000527 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100528 help
529 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
530 System-on-Chip devices.
531
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100532config ARCH_NS9XXX
533 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000534 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100535 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100536 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700537 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100538 help
539 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
540 System.
541
542 <http://www.digi.com/products/microprocessors/index.jsp>
543
Russell King788c9702009-04-26 14:21:59 +0100544config ARCH_W90X900
545 bool "Nuvoton W90X900 CPU"
546 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100547 select ARCH_REQUIRE_GPIOLIB
wanzongshun0e4a34b2009-06-10 15:50:44 +0100548 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100549 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200550 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100551 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
552 At present, the w90x900 has been renamed nuc900, regarding
553 the ARM series product line, you can login the following
554 link address to know more.
555
556 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
557 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400558
wanzongshuna62e9032009-12-31 15:06:05 +0100559config ARCH_NUC93X
560 bool "Nuvoton NUC93X CPU"
561 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100562 select COMMON_CLKDEV
563 help
564 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
565 low-power and high performance MPEG-4/JPEG multimedia controller chip.
566
Erik Gillingc5f80062010-01-21 16:53:02 -0800567config ARCH_TEGRA
568 bool "NVIDIA Tegra"
569 select GENERIC_TIME
570 select GENERIC_CLOCKEVENTS
571 select GENERIC_GPIO
572 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000573 select HAVE_SCHED_CLOCK
Colin Crossd8611962010-01-28 16:40:29 -0800574 select COMMON_CLKDEV
Erik Gillingc5f80062010-01-21 16:53:02 -0800575 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700576 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800577 help
578 This enables support for NVIDIA Tegra based systems (Tegra APX,
579 Tegra 6xx and Tegra 2 series).
580
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100581config ARCH_PNX4008
582 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000583 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000584 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000585 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100586 help
587 This enables support for Philips PNX4008 mobile platform.
588
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700590 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100591 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500592 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100593 select ARCH_HAS_CPUFREQ
Russell King8c3abc72008-11-08 20:25:21 +0000594 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700595 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100596 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000597 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000598 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800599 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800600 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000601 help
eric miao2c8086a2007-09-11 19:13:17 -0700602 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603
Russell King788c9702009-04-26 14:21:59 +0100604config ARCH_MSM
605 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500606 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800607 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700608 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800609 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800610 Support for Qualcomm MSM/QSD based systems. This runs on the
611 apps processor of the MSM/QSD and depends on a shared memory
612 interface to the modem processor which runs the baseband
613 stack and controls some vital subsystems
614 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800615
Magnus Dammc793c1b2010-02-05 11:14:49 +0000616config ARCH_SHMOBILE
617 bool "Renesas SH-Mobile"
618 help
619 Support for Renesas's SH-Mobile ARM platforms
620
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621config ARCH_RPC
622 bool "RiscPC"
623 select ARCH_ACORN
624 select FIQ
625 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100626 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100627 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000628 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000629 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100630 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000631 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632 help
633 On the Acorn Risc-PC, Linux can support the internal IDE disk and
634 CD-ROM interface, serial and parallel port, and the floppy drive.
635
636config ARCH_SA1100
637 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000638 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100639 select ISA
Russell King05944d72006-11-30 20:43:51 +0000640 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500641 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100642 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000643 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100644 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700645 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000646 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100647 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700648 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000649 help
650 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651
652config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900653 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800654 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100655 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700656 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000657 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900658 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659 help
660 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
661 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000662 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663
Ben Dooks63b1f512010-04-30 16:32:26 +0900664 Note, the S3C2416 and the S3C2450 are so close that they even share
665 the same SoC ID code. This means that there is no seperate machine
666 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
667
Ben Dooksa08ab632008-10-21 14:06:39 +0100668config ARCH_S3C64XX
669 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000670 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900671 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900672 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100673 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900674 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000675 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100676 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900677 select ARCH_REQUIRE_GPIOLIB
678 select SAMSUNG_CLKSRC
679 select SAMSUNG_IRQ_VIC_TIMER
680 select SAMSUNG_IRQ_UART
681 select S3C_GPIO_TRACK
682 select S3C_GPIO_PULL_UPDOWN
683 select S3C_GPIO_CFG_S3C24XX
684 select S3C_GPIO_CFG_S3C64XX
685 select S3C_DEV_NAND
686 select USB_ARCH_HAS_OHCI
687 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900688 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900689 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100690 help
691 Samsung S3C64XX series based systems
692
Kukjin Kim49b7a492010-09-07 15:47:18 +0900693config ARCH_S5P64X0
694 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900695 select CPU_V6
696 select GENERIC_GPIO
697 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900698 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900699 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900700 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900701 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900702 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900703 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
704 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900705
Kukjin Kim550db7f2010-01-29 10:19:26 +0900706config ARCH_S5P6442
707 bool "Samsung S5P6442"
708 select CPU_V6
709 select GENERIC_GPIO
710 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900711 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900712 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900713 help
714 Samsung S5P6442 CPU based systems
715
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200716config ARCH_S5PC100
717 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900718 select GENERIC_GPIO
719 select HAVE_CLK
720 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100721 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900722 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900723 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900724 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900725 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900726 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200727 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900728
Kukjin Kim170f4e42010-02-24 16:40:44 +0900729config ARCH_S5PV210
730 bool "Samsung S5PV210/S5PC110"
731 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900732 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900733 select GENERIC_GPIO
734 select HAVE_CLK
735 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900736 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900737 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900738 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900739 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900740 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900741 help
742 Samsung S5PV210/S5PC110 series based systems
743
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900744config ARCH_S5PV310
745 bool "Samsung S5PV310/S5PC210"
746 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900747 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900748 select GENERIC_GPIO
749 select HAVE_CLK
750 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900751 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900752 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900753 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900754 help
755 Samsung S5PV310 series based systems
756
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757config ARCH_SHARK
758 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000759 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100760 select ISA
761 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100762 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100763 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000764 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000765 help
766 Support for the StrongARM based Digital DNARD machine, also known
767 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768
Hans J. Koch83ef3332010-09-17 18:13:56 +0200769config ARCH_TCC_926
770 bool "Telechips TCC ARM926-based systems"
771 select CPU_ARM926T
772 select HAVE_CLK
773 select COMMON_CLKDEV
774 select GENERIC_CLOCKEVENTS
775 help
776 Support for Telechips TCC ARM926-based systems.
777
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778config ARCH_LH7A40X
779 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000780 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100781 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000782 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783 help
784 Say Y here for systems based on one of the Sharp LH7A40X
785 System on a Chip processors. These CPUs include an ARM922T
786 core with a wide array of integrated devices for
787 hand-held and low-power applications.
788
Linus Walleijd98aac72009-04-27 10:21:46 +0100789config ARCH_U300
790 bool "ST-Ericsson U300 Series"
791 depends on MMU
792 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000793 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100794 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100795 select ARM_AMBA
796 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100797 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100798 select COMMON_CLKDEV
799 select GENERIC_GPIO
800 help
801 Support for ST-Ericsson U300 series mobile platforms.
802
Russell Kingccf50e22010-03-15 19:03:06 +0000803config ARCH_U8500
804 bool "ST-Ericsson U8500 Series"
805 select CPU_V7
806 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000807 select GENERIC_CLOCKEVENTS
808 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100809 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000810 help
811 Support for ST-Ericsson's Ux500 architecture
812
813config ARCH_NOMADIK
814 bool "STMicroelectronics Nomadik"
815 select ARM_AMBA
816 select ARM_VIC
817 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000818 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000819 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000820 select ARCH_REQUIRE_GPIOLIB
821 help
822 Support for the Nomadik platform by ST-Ericsson
823
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100824config ARCH_DAVINCI
825 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100826 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700827 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100828 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700829 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700830 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700831 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530832 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100833 help
834 Support for TI's DaVinci platform.
835
Russell King3b938be2007-05-12 11:25:44 +0100836config ARCH_OMAP
837 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700838 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700839 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100840 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700841 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800842 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100843 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200844 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100845
viresh kumarcee37e52010-04-01 12:31:05 +0100846config PLAT_SPEAR
847 bool "ST SPEAr"
848 select ARM_AMBA
849 select ARCH_REQUIRE_GPIOLIB
850 select COMMON_CLKDEV
851 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100852 select HAVE_CLK
853 help
854 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
855
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856endchoice
857
Russell Kingccf50e22010-03-15 19:03:06 +0000858#
859# This is sorted alphabetically by mach-* pathname. However, plat-*
860# Kconfigs may be included either alphabetically (according to the
861# plat- suffix) or along side the corresponding mach-* source.
862#
Russell King95b8f202010-01-14 11:43:54 +0000863source "arch/arm/mach-aaec2000/Kconfig"
864
865source "arch/arm/mach-at91/Kconfig"
866
867source "arch/arm/mach-bcmring/Kconfig"
868
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869source "arch/arm/mach-clps711x/Kconfig"
870
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300871source "arch/arm/mach-cns3xxx/Kconfig"
872
Russell King95b8f202010-01-14 11:43:54 +0000873source "arch/arm/mach-davinci/Kconfig"
874
875source "arch/arm/mach-dove/Kconfig"
876
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000877source "arch/arm/mach-ep93xx/Kconfig"
878
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879source "arch/arm/mach-footbridge/Kconfig"
880
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200881source "arch/arm/mach-gemini/Kconfig"
882
Russell King95b8f202010-01-14 11:43:54 +0000883source "arch/arm/mach-h720x/Kconfig"
884
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885source "arch/arm/mach-integrator/Kconfig"
886
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100887source "arch/arm/mach-iop32x/Kconfig"
888
889source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890
Dan Williams285f5fa2006-12-07 02:59:39 +0100891source "arch/arm/mach-iop13xx/Kconfig"
892
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893source "arch/arm/mach-ixp4xx/Kconfig"
894
895source "arch/arm/mach-ixp2000/Kconfig"
896
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100897source "arch/arm/mach-ixp23xx/Kconfig"
898
Russell King95b8f202010-01-14 11:43:54 +0000899source "arch/arm/mach-kirkwood/Kconfig"
900
901source "arch/arm/mach-ks8695/Kconfig"
902
903source "arch/arm/mach-lh7a40x/Kconfig"
904
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200905source "arch/arm/mach-loki/Kconfig"
906
Kevin Wells40805942010-07-27 08:49:04 -0700907source "arch/arm/mach-lpc32xx/Kconfig"
908
Russell King95b8f202010-01-14 11:43:54 +0000909source "arch/arm/mach-msm/Kconfig"
910
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200911source "arch/arm/mach-mv78xx0/Kconfig"
912
Russell King95b8f202010-01-14 11:43:54 +0000913source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914
Russell King95b8f202010-01-14 11:43:54 +0000915source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800916
Russell King95b8f202010-01-14 11:43:54 +0000917source "arch/arm/mach-nomadik/Kconfig"
918source "arch/arm/plat-nomadik/Kconfig"
919
920source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921
Russell Kingd91a89102010-02-04 18:13:17 +0000922source "arch/arm/mach-nuc93x/Kconfig"
923
Tony Lindgrend48af152005-07-10 19:58:17 +0100924source "arch/arm/plat-omap/Kconfig"
925
926source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927
Tony Lindgren1dbae812005-11-10 14:26:51 +0000928source "arch/arm/mach-omap2/Kconfig"
929
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400930source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400931
Russell King95b8f202010-01-14 11:43:54 +0000932source "arch/arm/mach-pxa/Kconfig"
933source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934
Russell King95b8f202010-01-14 11:43:54 +0000935source "arch/arm/mach-mmp/Kconfig"
936
937source "arch/arm/mach-realview/Kconfig"
938
939source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300940
Ben Dookscf383672009-11-10 00:14:58 +0000941source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100942source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900943source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100944
viresh kumarcee37e52010-04-01 12:31:05 +0100945source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100946
Hans J. Koch83ef3332010-09-17 18:13:56 +0200947source "arch/arm/plat-tcc/Kconfig"
948
Ben Dooksa21765a2007-02-11 18:31:01 +0100949if ARCH_S3C2410
950source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100952source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900953source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100954source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100955source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100956endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
Ben Dooksa08ab632008-10-21 14:06:39 +0100958if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900959source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100960endif
961
Kukjin Kim49b7a492010-09-07 15:47:18 +0900962source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900963
Kukjin Kim550db7f2010-01-29 10:19:26 +0900964source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100965
Byungho Min5a7652f2009-06-23 21:39:42 +0900966source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900967
Kukjin Kim170f4e42010-02-24 16:40:44 +0900968source "arch/arm/mach-s5pv210/Kconfig"
969
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900970source "arch/arm/mach-s5pv310/Kconfig"
971
Russell King882d01f2010-03-02 23:40:15 +0000972source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973
Russell King882d01f2010-03-02 23:40:15 +0000974source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800975
Erik Gillingc5f80062010-01-21 16:53:02 -0800976source "arch/arm/mach-tegra/Kconfig"
977
Russell King95b8f202010-01-14 11:43:54 +0000978source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100979
Russell King95b8f202010-01-14 11:43:54 +0000980source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981
982source "arch/arm/mach-versatile/Kconfig"
983
Russell Kingceade892010-02-11 21:44:53 +0000984source "arch/arm/mach-vexpress/Kconfig"
985
wanzongshun7ec80dd2008-12-03 03:55:38 +0100986source "arch/arm/mach-w90x900/Kconfig"
987
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988# Definitions to make life easier
989config ARCH_ACORN
990 bool
991
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100992config PLAT_IOP
993 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700994 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100995
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400996config PLAT_ORION
997 bool
998
Eric Miaobd5ce432009-01-20 12:06:01 +0800999config PLAT_PXA
1000 bool
1001
Russell Kingf4b8b312010-01-14 12:48:06 +00001002config PLAT_VERSATILE
1003 bool
1004
Russell Kinge3887712010-01-14 13:30:16 +00001005config ARM_TIMER_SP804
1006 bool
1007
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008source arch/arm/mm/Kconfig
1009
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001010config IWMMXT
1011 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +08001012 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
1013 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001014 help
1015 Enable support for iWMMXt context switching at run time if
1016 running on a CPU that supports it.
1017
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1019config XSCALE_PMU
1020 bool
1021 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1022 default y
1023
Jamie Iles0f4f0672010-02-02 20:23:15 +01001024config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001025 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1026 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001027 default y
1028 bool
1029
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001030if !MMU
1031source "arch/arm/Kconfig-nommu"
1032endif
1033
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001034config ARM_ERRATA_411920
1035 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001036 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001037 help
1038 Invalidation of the Instruction Cache operation can
1039 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1040 It does not affect the MPCore. This option enables the ARM Ltd.
1041 recommended workaround.
1042
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001043config ARM_ERRATA_430973
1044 bool "ARM errata: Stale prediction on replaced interworking branch"
1045 depends on CPU_V7
1046 help
1047 This option enables the workaround for the 430973 Cortex-A8
1048 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1049 interworking branch is replaced with another code sequence at the
1050 same virtual address, whether due to self-modifying code or virtual
1051 to physical address re-mapping, Cortex-A8 does not recover from the
1052 stale interworking branch prediction. This results in Cortex-A8
1053 executing the new code sequence in the incorrect ARM or Thumb state.
1054 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1055 and also flushes the branch target cache at every context switch.
1056 Note that setting specific bits in the ACTLR register may not be
1057 available in non-secure mode.
1058
Catalin Marinas855c5512009-04-30 17:06:15 +01001059config ARM_ERRATA_458693
1060 bool "ARM errata: Processor deadlock when a false hazard is created"
1061 depends on CPU_V7
1062 help
1063 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1064 erratum. For very specific sequences of memory operations, it is
1065 possible for a hazard condition intended for a cache line to instead
1066 be incorrectly associated with a different cache line. This false
1067 hazard might then cause a processor deadlock. The workaround enables
1068 the L1 caching of the NEON accesses and disables the PLD instruction
1069 in the ACTLR register. Note that setting specific bits in the ACTLR
1070 register may not be available in non-secure mode.
1071
Catalin Marinas0516e462009-04-30 17:06:20 +01001072config ARM_ERRATA_460075
1073 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1074 depends on CPU_V7
1075 help
1076 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1077 erratum. Any asynchronous access to the L2 cache may encounter a
1078 situation in which recent store transactions to the L2 cache are lost
1079 and overwritten with stale memory contents from external memory. The
1080 workaround disables the write-allocate mode for the L2 cache via the
1081 ACTLR register. Note that setting specific bits in the ACTLR register
1082 may not be available in non-secure mode.
1083
Will Deacon9f050272010-09-14 09:51:43 +01001084config ARM_ERRATA_742230
1085 bool "ARM errata: DMB operation may be faulty"
1086 depends on CPU_V7 && SMP
1087 help
1088 This option enables the workaround for the 742230 Cortex-A9
1089 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1090 between two write operations may not ensure the correct visibility
1091 ordering of the two writes. This workaround sets a specific bit in
1092 the diagnostic register of the Cortex-A9 which causes the DMB
1093 instruction to behave as a DSB, ensuring the correct behaviour of
1094 the two writes.
1095
Will Deacona672e992010-09-14 09:53:02 +01001096config ARM_ERRATA_742231
1097 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1098 depends on CPU_V7 && SMP
1099 help
1100 This option enables the workaround for the 742231 Cortex-A9
1101 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1102 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1103 accessing some data located in the same cache line, may get corrupted
1104 data due to bad handling of the address hazard when the line gets
1105 replaced from one of the CPUs at the same time as another CPU is
1106 accessing it. This workaround sets specific bits in the diagnostic
1107 register of the Cortex-A9 which reduces the linefill issuing
1108 capabilities of the processor.
1109
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001110config PL310_ERRATA_588369
1111 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1112 depends on CACHE_L2X0 && ARCH_OMAP4
1113 help
1114 The PL310 L2 cache controller implements three types of Clean &
1115 Invalidate maintenance operations: by Physical Address
1116 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1117 They are architecturally defined to behave as the execution of a
1118 clean operation followed immediately by an invalidate operation,
1119 both performing to the same memory location. This functionality
1120 is not correctly implemented in PL310 as clean lines are not
1121 invalidated as a result of these operations. Note that this errata
1122 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001123
1124config ARM_ERRATA_720789
1125 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1126 depends on CPU_V7 && SMP
1127 help
1128 This option enables the workaround for the 720789 Cortex-A9 (prior to
1129 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1130 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1131 As a consequence of this erratum, some TLB entries which should be
1132 invalidated are not, resulting in an incoherency in the system page
1133 tables. The workaround changes the TLB flushing routines to invalidate
1134 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001135
1136config ARM_ERRATA_743622
1137 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1138 depends on CPU_V7
1139 help
1140 This option enables the workaround for the 743622 Cortex-A9
1141 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1142 optimisation in the Cortex-A9 Store Buffer may lead to data
1143 corruption. This workaround sets a specific bit in the diagnostic
1144 register of the Cortex-A9 which disables the Store Buffer
1145 optimisation, preventing the defect from occurring. This has no
1146 visible impact on the overall performance or power consumption of the
1147 processor.
1148
Linus Torvalds1da177e2005-04-16 15:20:36 -07001149endmenu
1150
1151source "arch/arm/common/Kconfig"
1152
Linus Torvalds1da177e2005-04-16 15:20:36 -07001153menu "Bus support"
1154
1155config ARM_AMBA
1156 bool
1157
1158config ISA
1159 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160 help
1161 Find out whether you have ISA slots on your motherboard. ISA is the
1162 name of a bus system, i.e. the way the CPU talks to the other stuff
1163 inside your box. Other bus systems are PCI, EISA, MicroChannel
1164 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1165 newer boards don't support it. If you have ISA, say Y, otherwise N.
1166
Russell King065909b2006-01-04 15:44:16 +00001167# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168config ISA_DMA
1169 bool
Russell King065909b2006-01-04 15:44:16 +00001170 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171
Russell King065909b2006-01-04 15:44:16 +00001172# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001173config ISA_DMA_API
1174 bool
Al Viro5cae8412005-05-04 05:39:22 +01001175
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176config PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +04001177 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 -07001178 help
1179 Find out whether you have a PCI motherboard. PCI is the name of a
1180 bus system, i.e. the way the CPU talks to the other stuff inside
1181 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1182 VESA. If you have PCI, say Y, otherwise N.
1183
Anton Vorontsov52882172010-04-19 13:20:49 +01001184config PCI_DOMAINS
1185 bool
1186 depends on PCI
1187
Matthew Wilcox36e23592007-07-10 10:54:40 -06001188config PCI_SYSCALL
1189 def_bool PCI
1190
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191# Select the host bridge type
1192config PCI_HOST_VIA82C505
1193 bool
1194 depends on PCI && ARCH_SHARK
1195 default y
1196
Mike Rapoporta0113a92007-11-25 08:55:34 +01001197config PCI_HOST_ITE8152
1198 bool
1199 depends on PCI && MACH_ARMCORE
1200 default y
1201 select DMABOUNCE
1202
Linus Torvalds1da177e2005-04-16 15:20:36 -07001203source "drivers/pci/Kconfig"
1204
1205source "drivers/pcmcia/Kconfig"
1206
1207endmenu
1208
1209menu "Kernel Features"
1210
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001211source "kernel/time/Kconfig"
1212
Linus Torvalds1da177e2005-04-16 15:20:36 -07001213config SMP
1214 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001215 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001216 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001217 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001218 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1219 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
1220 ARCH_MSM_SCORPIONMP
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001221 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001222 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001223 help
1224 This enables support for systems with more than one CPU. If you have
1225 a system with only one CPU, like most personal computers, say N. If
1226 you have a system with more than one CPU, say Y.
1227
1228 If you say N here, the kernel will run on single and multiprocessor
1229 machines, but will use only one CPU of a multiprocessor machine. If
1230 you say Y here, the kernel will run on many, but not all, single
1231 processor machines. On a single processor machine, the kernel will
1232 run faster if you say N here.
1233
Adrian Bunk03502fa2008-02-03 15:50:21 +02001234 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001235 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001236 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001237
1238 If you don't know what to do here, say N.
1239
Russell Kingf00ec482010-09-04 10:47:48 +01001240config SMP_ON_UP
1241 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1242 depends on EXPERIMENTAL
1243 depends on SMP && !XIP && !THUMB2_KERNEL
1244 default y
1245 help
1246 SMP kernels contain instructions which fail on non-SMP processors.
1247 Enabling this option allows the kernel to modify itself to make
1248 these instructions safe. Disabling it allows about 1K of space
1249 savings.
1250
1251 If you don't know what to do here, say Y.
1252
Russell Kinga8cbcd92009-05-16 11:51:14 +01001253config HAVE_ARM_SCU
1254 bool
1255 depends on SMP
1256 help
1257 This option enables support for the ARM system coherency unit
1258
Russell Kingf32f4ce2009-05-16 12:14:21 +01001259config HAVE_ARM_TWD
1260 bool
1261 depends on SMP
1262 help
1263 This options enables support for the ARM timer and watchdog unit
1264
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001265choice
1266 prompt "Memory split"
1267 default VMSPLIT_3G
1268 help
1269 Select the desired split between kernel and user memory.
1270
1271 If you are not absolutely sure what you are doing, leave this
1272 option alone!
1273
1274 config VMSPLIT_3G
1275 bool "3G/1G user/kernel split"
1276 config VMSPLIT_2G
1277 bool "2G/2G user/kernel split"
1278 config VMSPLIT_1G
1279 bool "1G/3G user/kernel split"
1280endchoice
1281
1282config PAGE_OFFSET
1283 hex
1284 default 0x40000000 if VMSPLIT_1G
1285 default 0x80000000 if VMSPLIT_2G
1286 default 0xC0000000
1287
Linus Torvalds1da177e2005-04-16 15:20:36 -07001288config NR_CPUS
1289 int "Maximum number of CPUs (2-32)"
1290 range 2 32
1291 depends on SMP
1292 default "4"
1293
Russell Kinga054a812005-11-02 22:24:33 +00001294config HOTPLUG_CPU
1295 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1296 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001297 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001298 help
1299 Say Y here to experiment with turning CPUs off and on. CPUs
1300 can be controlled through /sys/devices/system/cpu.
1301
Russell King37ee16a2005-11-08 19:08:05 +00001302config LOCAL_TIMERS
1303 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001304 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001305 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001306 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001307 help
1308 Enable support for local timers on SMP platforms, rather then the
1309 legacy IPI broadcast method. Local timers allows the system
1310 accounting to be spread across the timer interval, preventing a
1311 "thundering herd" at every timer tick.
1312
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001313source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001314
Russell Kingf8065812006-03-02 22:41:59 +00001315config HZ
1316 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001317 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001318 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001319 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001320 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001321 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001322 default 100
1323
Catalin Marinas16c79652009-07-24 12:33:02 +01001324config THUMB2_KERNEL
1325 bool "Compile the kernel in Thumb-2 mode"
1326 depends on CPU_V7 && EXPERIMENTAL
1327 select AEABI
1328 select ARM_ASM_UNIFIED
1329 help
1330 By enabling this option, the kernel will be compiled in
1331 Thumb-2 mode. A compiler/assembler that understand the unified
1332 ARM-Thumb syntax is needed.
1333
1334 If unsure, say N.
1335
Catalin Marinas0becb082009-07-24 12:32:53 +01001336config ARM_ASM_UNIFIED
1337 bool
1338
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001339config AEABI
1340 bool "Use the ARM EABI to compile the kernel"
1341 help
1342 This option allows for the kernel to be compiled using the latest
1343 ARM ABI (aka EABI). This is only useful if you are using a user
1344 space environment that is also compiled with EABI.
1345
1346 Since there are major incompatibilities between the legacy ABI and
1347 EABI, especially with regard to structure member alignment, this
1348 option also changes the kernel syscall calling convention to
1349 disambiguate both ABIs and allow for backward compatibility support
1350 (selected with CONFIG_OABI_COMPAT).
1351
1352 To use this you need GCC version 4.0.0 or later.
1353
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001354config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001355 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001356 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001357 default y
1358 help
1359 This option preserves the old syscall interface along with the
1360 new (ARM EABI) one. It also provides a compatibility layer to
1361 intercept syscalls that have structure arguments which layout
1362 in memory differs between the legacy ABI and the new ARM EABI
1363 (only for non "thumb" binaries). This option adds a tiny
1364 overhead to all syscalls and produces a slightly larger kernel.
1365 If you know you'll be using only pure EABI user space then you
1366 can say N here. If this option is not selected and you attempt
1367 to execute a legacy ABI binary then the result will be
1368 UNPREDICTABLE (in fact it can be predicted that it won't work
1369 at all). If in doubt say Y.
1370
Mel Gormaneb335752009-05-13 17:34:48 +01001371config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001372 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001373
Russell King05944d72006-11-30 20:43:51 +00001374config ARCH_SPARSEMEM_ENABLE
1375 bool
1376
Russell King07a2f732008-10-01 21:39:58 +01001377config ARCH_SPARSEMEM_DEFAULT
1378 def_bool ARCH_SPARSEMEM_ENABLE
1379
Russell King05944d72006-11-30 20:43:51 +00001380config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001381 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001382
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001383config HIGHMEM
1384 bool "High Memory Support (EXPERIMENTAL)"
1385 depends on MMU && EXPERIMENTAL
1386 help
1387 The address space of ARM processors is only 4 Gigabytes large
1388 and it has to accommodate user address space, kernel address
1389 space as well as some memory mapped IO. That means that, if you
1390 have a large amount of physical memory and/or IO, not all of the
1391 memory can be "permanently mapped" by the kernel. The physical
1392 memory that is not permanently mapped is called "high memory".
1393
1394 Depending on the selected kernel/user memory split, minimum
1395 vmalloc space and actual amount of RAM, you may not need this
1396 option which should result in a slightly faster kernel.
1397
1398 If unsure, say n.
1399
Russell King65cec8e2009-08-17 20:02:06 +01001400config HIGHPTE
1401 bool "Allocate 2nd-level pagetables from highmem"
1402 depends on HIGHMEM
1403 depends on !OUTER_CACHE
1404
Jamie Iles1b8873a2010-02-02 20:25:44 +01001405config HW_PERF_EVENTS
1406 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001407 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001408 default y
1409 help
1410 Enable hardware performance counter support for perf events. If
1411 disabled, perf events will use software events only.
1412
eric miao354e6f72010-06-25 09:46:09 +01001413config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001414 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001415 help
1416 This enables support for sparse irqs. This is useful in general
1417 as most CPUs have a fairly sparse array of IRQ vectors, which
1418 the irq_desc then maps directly on to. Systems with a high
1419 number of off-chip IRQs will want to treat this as
1420 experimental until they have been independently verified.
1421
Dave Hansen3f22ab22005-06-23 00:07:43 -07001422source "mm/Kconfig"
1423
Magnus Dammc1b2d972010-07-05 10:00:11 +01001424config FORCE_MAX_ZONEORDER
1425 int "Maximum zone order" if ARCH_SHMOBILE
1426 range 11 64 if ARCH_SHMOBILE
1427 default "9" if SA1111
1428 default "11"
1429 help
1430 The kernel memory allocator divides physically contiguous memory
1431 blocks into "zones", where each zone is a power of two number of
1432 pages. This option selects the largest power of two that the kernel
1433 keeps in the memory allocator. If you need to allocate very large
1434 blocks of physically contiguous memory, then you may need to
1435 increase this value.
1436
1437 This config option is actually maximum order plus one. For example,
1438 a value of 11 means that the largest free memory block is 2^10 pages.
1439
Linus Torvalds1da177e2005-04-16 15:20:36 -07001440config LEDS
1441 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001442 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001443 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1445 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001446 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001447 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001448 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449 help
1450 If you say Y here, the LEDs on your machine will be used
1451 to provide useful information about your current system status.
1452
1453 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1454 be able to select which LEDs are active using the options below. If
1455 you are compiling a kernel for the EBSA-110 or the LART however, the
1456 red LED will simply flash regularly to indicate that the system is
1457 still functional. It is safe to say Y here if you have a CATS
1458 system, but the driver will do nothing.
1459
1460config LEDS_TIMER
1461 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001462 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1463 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001465 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466 default y if ARCH_EBSA110
1467 help
1468 If you say Y here, one of the system LEDs (the green one on the
1469 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1470 will flash regularly to indicate that the system is still
1471 operational. This is mainly useful to kernel hackers who are
1472 debugging unstable kernels.
1473
1474 The LART uses the same LED for both Timer LED and CPU usage LED
1475 functions. You may choose to use both, but the Timer LED function
1476 will overrule the CPU usage LED.
1477
1478config LEDS_CPU
1479 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001480 !ARCH_OMAP) \
1481 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1482 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001483 depends on LEDS
1484 help
1485 If you say Y here, the red LED will be used to give a good real
1486 time indication of CPU usage, by lighting whenever the idle task
1487 is not currently executing.
1488
1489 The LART uses the same LED for both Timer LED and CPU usage LED
1490 functions. You may choose to use both, but the Timer LED function
1491 will overrule the CPU usage LED.
1492
1493config ALIGNMENT_TRAP
1494 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001495 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001496 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001497 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001499 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1501 address divisible by 4. On 32-bit ARM processors, these non-aligned
1502 fetch/store instructions will be emulated in software if you say
1503 here, which has a severe performance impact. This is necessary for
1504 correct operation of some network protocols. With an IP-only
1505 configuration it is safe to say N, otherwise say Y.
1506
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001507config UACCESS_WITH_MEMCPY
1508 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1509 depends on MMU && EXPERIMENTAL
1510 default y if CPU_FEROCEON
1511 help
1512 Implement faster copy_to_user and clear_user methods for CPU
1513 cores where a 8-word STM instruction give significantly higher
1514 memory write throughput than a sequence of individual 32bit stores.
1515
1516 A possible side effect is a slight increase in scheduling latency
1517 between threads sharing the same address space if they invoke
1518 such copy operations with large buffers.
1519
1520 However, if the CPU data cache is using a write-allocate mode,
1521 this option is unlikely to provide any performance gain.
1522
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001523config SECCOMP
1524 bool
1525 prompt "Enable seccomp to safely compute untrusted bytecode"
1526 ---help---
1527 This kernel feature is useful for number crunching applications
1528 that may need to compute untrusted bytecode during their
1529 execution. By using pipes or other transports made available to
1530 the process as file descriptors supporting the read/write
1531 syscalls, it's possible to isolate those applications in
1532 their own address space using seccomp. Once seccomp is
1533 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1534 and the task is only allowed to execute a few safe syscalls
1535 defined by each seccomp mode.
1536
Nicolas Pitrec743f382010-05-24 23:55:42 -04001537config CC_STACKPROTECTOR
1538 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1539 help
1540 This option turns on the -fstack-protector GCC feature. This
1541 feature puts, at the beginning of functions, a canary value on
1542 the stack just before the return address, and validates
1543 the value just before actually returning. Stack based buffer
1544 overflows (that need to overwrite this return address) now also
1545 overwrite the canary, which gets detected and the attack is then
1546 neutralized via a kernel panic.
1547 This feature requires gcc version 4.2 or above.
1548
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001549config DEPRECATED_PARAM_STRUCT
1550 bool "Provide old way to pass kernel parameters"
1551 help
1552 This was deprecated in 2001 and announced to live on for 5 years.
1553 Some old boot loaders still use this way.
1554
Linus Torvalds1da177e2005-04-16 15:20:36 -07001555endmenu
1556
1557menu "Boot options"
1558
1559# Compressed boot loader in ROM. Yes, we really want to ask about
1560# TEXT and BSS so we preserve their values in the config files.
1561config ZBOOT_ROM_TEXT
1562 hex "Compressed ROM boot loader base address"
1563 default "0"
1564 help
1565 The physical address at which the ROM-able zImage is to be
1566 placed in the target. Platforms which normally make use of
1567 ROM-able zImage formats normally set this to a suitable
1568 value in their defconfig file.
1569
1570 If ZBOOT_ROM is not enabled, this has no effect.
1571
1572config ZBOOT_ROM_BSS
1573 hex "Compressed ROM boot loader BSS address"
1574 default "0"
1575 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001576 The base address of an area of read/write memory in the target
1577 for the ROM-able zImage which must be available while the
1578 decompressor is running. It must be large enough to hold the
1579 entire decompressed kernel plus an additional 128 KiB.
1580 Platforms which normally make use of ROM-able zImage formats
1581 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001582
1583 If ZBOOT_ROM is not enabled, this has no effect.
1584
1585config ZBOOT_ROM
1586 bool "Compressed boot loader in ROM/flash"
1587 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1588 help
1589 Say Y here if you intend to execute your compressed kernel image
1590 (zImage) directly from ROM or flash. If unsure, say N.
1591
1592config CMDLINE
1593 string "Default kernel command string"
1594 default ""
1595 help
1596 On some architectures (EBSA110 and CATS), there is currently no way
1597 for the boot loader to pass arguments to the kernel. For these
1598 architectures, you should supply some command-line options at build
1599 time by entering them here. As a minimum, you should specify the
1600 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1601
Alexander Holler92d20402010-02-16 19:04:53 +01001602config CMDLINE_FORCE
1603 bool "Always use the default kernel command string"
1604 depends on CMDLINE != ""
1605 help
1606 Always use the default kernel command string, even if the boot
1607 loader passes other arguments to the kernel.
1608 This is useful if you cannot or don't want to change the
1609 command-line options your boot loader passes to the kernel.
1610
1611 If unsure, say N.
1612
Linus Torvalds1da177e2005-04-16 15:20:36 -07001613config XIP_KERNEL
1614 bool "Kernel Execute-In-Place from ROM"
1615 depends on !ZBOOT_ROM
1616 help
1617 Execute-In-Place allows the kernel to run from non-volatile storage
1618 directly addressable by the CPU, such as NOR flash. This saves RAM
1619 space since the text section of the kernel is not loaded from flash
1620 to RAM. Read-write sections, such as the data section and stack,
1621 are still copied to RAM. The XIP kernel is not compressed since
1622 it has to run directly from flash, so it will take more space to
1623 store it. The flash address used to link the kernel object files,
1624 and for storing it, is configuration dependent. Therefore, if you
1625 say Y here, you must know the proper physical address where to
1626 store the kernel image depending on your own flash memory usage.
1627
1628 Also note that the make target becomes "make xipImage" rather than
1629 "make zImage" or "make Image". The final kernel binary to put in
1630 ROM memory will be arch/arm/boot/xipImage.
1631
1632 If unsure, say N.
1633
1634config XIP_PHYS_ADDR
1635 hex "XIP Kernel Physical Location"
1636 depends on XIP_KERNEL
1637 default "0x00080000"
1638 help
1639 This is the physical address in your flash memory the kernel will
1640 be linked for and stored to. This address is dependent on your
1641 own flash usage.
1642
Richard Purdiec587e4a2007-02-06 21:29:00 +01001643config KEXEC
1644 bool "Kexec system call (EXPERIMENTAL)"
1645 depends on EXPERIMENTAL
1646 help
1647 kexec is a system call that implements the ability to shutdown your
1648 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001649 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001650 you can start any kernel with it, not just Linux.
1651
1652 It is an ongoing process to be certain the hardware in a machine
1653 is properly shutdown, so do not be surprised if this code does not
1654 initially work for you. It may help to enable device hotplugging
1655 support.
1656
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001657config ATAGS_PROC
1658 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001659 depends on KEXEC
1660 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001661 help
1662 Should the atags used to boot the kernel be exported in an "atags"
1663 file in procfs. Useful with kexec.
1664
Eric Miaoe69edc792010-07-05 15:56:50 +02001665config AUTO_ZRELADDR
1666 bool "Auto calculation of the decompressed kernel image address"
1667 depends on !ZBOOT_ROM && !ARCH_U300
1668 help
1669 ZRELADDR is the physical address where the decompressed kernel
1670 image will be placed. If AUTO_ZRELADDR is selected, the address
1671 will be determined at run-time by masking the current IP with
1672 0xf8000000. This assumes the zImage being placed in the first 128MB
1673 from start of memory.
1674
Linus Torvalds1da177e2005-04-16 15:20:36 -07001675endmenu
1676
Russell Kingac9d7ef2008-08-18 17:26:00 +01001677menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001678
Ben Dooks89c52ed2009-07-30 23:23:24 +01001679if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001680
1681source "drivers/cpufreq/Kconfig"
1682
Yong Shen64f102b2010-10-21 21:18:59 +08001683config CPU_FREQ_IMX
1684 tristate "CPUfreq driver for i.MX CPUs"
1685 depends on ARCH_MXC && CPU_FREQ
1686 help
1687 This enables the CPUfreq driver for i.MX CPUs.
1688
Linus Torvalds1da177e2005-04-16 15:20:36 -07001689config CPU_FREQ_SA1100
1690 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001691
1692config CPU_FREQ_SA1110
1693 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001694
1695config CPU_FREQ_INTEGRATOR
1696 tristate "CPUfreq driver for ARM Integrator CPUs"
1697 depends on ARCH_INTEGRATOR && CPU_FREQ
1698 default y
1699 help
1700 This enables the CPUfreq driver for ARM Integrator CPUs.
1701
1702 For details, take a look at <file:Documentation/cpu-freq>.
1703
1704 If in doubt, say Y.
1705
Russell King9e2697f2007-12-14 13:30:14 +00001706config CPU_FREQ_PXA
1707 bool
1708 depends on CPU_FREQ && ARCH_PXA && PXA25x
1709 default y
1710 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1711
Mark Brownb3748dd2009-06-15 11:23:20 +01001712config CPU_FREQ_S3C64XX
1713 bool "CPUfreq support for Samsung S3C64XX CPUs"
1714 depends on CPU_FREQ && CPU_S3C6410
1715
Ben Dooks9d56c022009-07-30 23:23:25 +01001716config CPU_FREQ_S3C
1717 bool
1718 help
1719 Internal configuration node for common cpufreq on Samsung SoC
1720
1721config CPU_FREQ_S3C24XX
1722 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1723 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1724 select CPU_FREQ_S3C
1725 help
1726 This enables the CPUfreq driver for the Samsung S3C24XX family
1727 of CPUs.
1728
1729 For details, take a look at <file:Documentation/cpu-freq>.
1730
1731 If in doubt, say N.
1732
1733config CPU_FREQ_S3C24XX_PLL
1734 bool "Support CPUfreq changing of PLL frequency"
1735 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1736 help
1737 Compile in support for changing the PLL frequency from the
1738 S3C24XX series CPUfreq driver. The PLL takes time to settle
1739 after a frequency change, so by default it is not enabled.
1740
1741 This also means that the PLL tables for the selected CPU(s) will
1742 be built which may increase the size of the kernel image.
1743
1744config CPU_FREQ_S3C24XX_DEBUG
1745 bool "Debug CPUfreq Samsung driver core"
1746 depends on CPU_FREQ_S3C24XX
1747 help
1748 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1749
1750config CPU_FREQ_S3C24XX_IODEBUG
1751 bool "Debug CPUfreq Samsung driver IO timing"
1752 depends on CPU_FREQ_S3C24XX
1753 help
1754 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1755
Ben Dookse6d197a2009-07-30 23:23:42 +01001756config CPU_FREQ_S3C24XX_DEBUGFS
1757 bool "Export debugfs for CPUFreq"
1758 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1759 help
1760 Export status information via debugfs.
1761
Linus Torvalds1da177e2005-04-16 15:20:36 -07001762endif
1763
Russell Kingac9d7ef2008-08-18 17:26:00 +01001764source "drivers/cpuidle/Kconfig"
1765
1766endmenu
1767
Linus Torvalds1da177e2005-04-16 15:20:36 -07001768menu "Floating point emulation"
1769
1770comment "At least one emulation must be selected"
1771
1772config FPE_NWFPE
1773 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001774 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001775 ---help---
1776 Say Y to include the NWFPE floating point emulator in the kernel.
1777 This is necessary to run most binaries. Linux does not currently
1778 support floating point hardware so you need to say Y here even if
1779 your machine has an FPA or floating point co-processor podule.
1780
1781 You may say N here if you are going to load the Acorn FPEmulator
1782 early in the bootup.
1783
1784config FPE_NWFPE_XP
1785 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001786 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001787 help
1788 Say Y to include 80-bit support in the kernel floating-point
1789 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1790 Note that gcc does not generate 80-bit operations by default,
1791 so in most cases this option only enlarges the size of the
1792 floating point emulator without any good reason.
1793
1794 You almost surely want to say N here.
1795
1796config FPE_FASTFPE
1797 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001798 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799 ---help---
1800 Say Y here to include the FAST floating point emulator in the kernel.
1801 This is an experimental much faster emulator which now also has full
1802 precision for the mantissa. It does not support any exceptions.
1803 It is very simple, and approximately 3-6 times faster than NWFPE.
1804
1805 It should be sufficient for most programs. It may be not suitable
1806 for scientific calculations, but you have to check this for yourself.
1807 If you do not feel you need a faster FP emulation you should better
1808 choose NWFPE.
1809
1810config VFP
1811 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001812 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001813 help
1814 Say Y to include VFP support code in the kernel. This is needed
1815 if your hardware includes a VFP unit.
1816
1817 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1818 release notes and additional status information.
1819
1820 Say N if your target does not have VFP hardware.
1821
Catalin Marinas25ebee02007-09-25 15:22:24 +01001822config VFPv3
1823 bool
1824 depends on VFP
1825 default y if CPU_V7
1826
Catalin Marinasb5872db2008-01-10 19:16:17 +01001827config NEON
1828 bool "Advanced SIMD (NEON) Extension support"
1829 depends on VFPv3 && CPU_V7
1830 help
1831 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1832 Extension.
1833
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834endmenu
1835
1836menu "Userspace binary formats"
1837
1838source "fs/Kconfig.binfmt"
1839
1840config ARTHUR
1841 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001842 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001843 help
1844 Say Y here to include the kernel code necessary if you want to run
1845 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1846 experimental; if this sounds frightening, say N and sleep in peace.
1847 You can also say M here to compile this support as a module (which
1848 will be called arthur).
1849
1850endmenu
1851
1852menu "Power management options"
1853
Russell Kingeceab4a2005-11-15 11:31:41 +00001854source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001855
Johannes Bergf4cb5702007-12-08 02:14:00 +01001856config ARCH_SUSPEND_POSSIBLE
1857 def_bool y
1858
Linus Torvalds1da177e2005-04-16 15:20:36 -07001859endmenu
1860
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001861source "net/Kconfig"
1862
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001863source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001864
1865source "fs/Kconfig"
1866
Linus Torvalds1da177e2005-04-16 15:20:36 -07001867source "arch/arm/Kconfig.debug"
1868
1869source "security/Kconfig"
1870
1871source "crypto/Kconfig"
1872
1873source "lib/Kconfig"