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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
Russell Kingdc548fb2010-12-15 21:53:51 +0000842 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800843 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100844 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200845 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100846
viresh kumarcee37e52010-04-01 12:31:05 +0100847config PLAT_SPEAR
848 bool "ST SPEAr"
849 select ARM_AMBA
850 select ARCH_REQUIRE_GPIOLIB
851 select COMMON_CLKDEV
852 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100853 select HAVE_CLK
854 help
855 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
856
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857endchoice
858
Russell Kingccf50e22010-03-15 19:03:06 +0000859#
860# This is sorted alphabetically by mach-* pathname. However, plat-*
861# Kconfigs may be included either alphabetically (according to the
862# plat- suffix) or along side the corresponding mach-* source.
863#
Russell King95b8f202010-01-14 11:43:54 +0000864source "arch/arm/mach-aaec2000/Kconfig"
865
866source "arch/arm/mach-at91/Kconfig"
867
868source "arch/arm/mach-bcmring/Kconfig"
869
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870source "arch/arm/mach-clps711x/Kconfig"
871
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300872source "arch/arm/mach-cns3xxx/Kconfig"
873
Russell King95b8f202010-01-14 11:43:54 +0000874source "arch/arm/mach-davinci/Kconfig"
875
876source "arch/arm/mach-dove/Kconfig"
877
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000878source "arch/arm/mach-ep93xx/Kconfig"
879
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880source "arch/arm/mach-footbridge/Kconfig"
881
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200882source "arch/arm/mach-gemini/Kconfig"
883
Russell King95b8f202010-01-14 11:43:54 +0000884source "arch/arm/mach-h720x/Kconfig"
885
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886source "arch/arm/mach-integrator/Kconfig"
887
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100888source "arch/arm/mach-iop32x/Kconfig"
889
890source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891
Dan Williams285f5fa2006-12-07 02:59:39 +0100892source "arch/arm/mach-iop13xx/Kconfig"
893
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894source "arch/arm/mach-ixp4xx/Kconfig"
895
896source "arch/arm/mach-ixp2000/Kconfig"
897
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100898source "arch/arm/mach-ixp23xx/Kconfig"
899
Russell King95b8f202010-01-14 11:43:54 +0000900source "arch/arm/mach-kirkwood/Kconfig"
901
902source "arch/arm/mach-ks8695/Kconfig"
903
904source "arch/arm/mach-lh7a40x/Kconfig"
905
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200906source "arch/arm/mach-loki/Kconfig"
907
Kevin Wells40805942010-07-27 08:49:04 -0700908source "arch/arm/mach-lpc32xx/Kconfig"
909
Russell King95b8f202010-01-14 11:43:54 +0000910source "arch/arm/mach-msm/Kconfig"
911
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200912source "arch/arm/mach-mv78xx0/Kconfig"
913
Russell King95b8f202010-01-14 11:43:54 +0000914source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915
Russell King95b8f202010-01-14 11:43:54 +0000916source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800917
Russell King95b8f202010-01-14 11:43:54 +0000918source "arch/arm/mach-nomadik/Kconfig"
919source "arch/arm/plat-nomadik/Kconfig"
920
921source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922
Russell Kingd91a89102010-02-04 18:13:17 +0000923source "arch/arm/mach-nuc93x/Kconfig"
924
Tony Lindgrend48af152005-07-10 19:58:17 +0100925source "arch/arm/plat-omap/Kconfig"
926
927source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928
Tony Lindgren1dbae812005-11-10 14:26:51 +0000929source "arch/arm/mach-omap2/Kconfig"
930
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400931source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400932
Russell King95b8f202010-01-14 11:43:54 +0000933source "arch/arm/mach-pxa/Kconfig"
934source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935
Russell King95b8f202010-01-14 11:43:54 +0000936source "arch/arm/mach-mmp/Kconfig"
937
938source "arch/arm/mach-realview/Kconfig"
939
940source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300941
Ben Dookscf383672009-11-10 00:14:58 +0000942source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100943source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900944source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100945
viresh kumarcee37e52010-04-01 12:31:05 +0100946source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100947
Hans J. Koch83ef3332010-09-17 18:13:56 +0200948source "arch/arm/plat-tcc/Kconfig"
949
Ben Dooksa21765a2007-02-11 18:31:01 +0100950if ARCH_S3C2410
951source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100953source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900954source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100955source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100956source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100957endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958
Ben Dooksa08ab632008-10-21 14:06:39 +0100959if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900960source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100961endif
962
Kukjin Kim49b7a492010-09-07 15:47:18 +0900963source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900964
Kukjin Kim550db7f2010-01-29 10:19:26 +0900965source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100966
Byungho Min5a7652f2009-06-23 21:39:42 +0900967source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900968
Kukjin Kim170f4e42010-02-24 16:40:44 +0900969source "arch/arm/mach-s5pv210/Kconfig"
970
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900971source "arch/arm/mach-s5pv310/Kconfig"
972
Russell King882d01f2010-03-02 23:40:15 +0000973source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974
Russell King882d01f2010-03-02 23:40:15 +0000975source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800976
Erik Gillingc5f80062010-01-21 16:53:02 -0800977source "arch/arm/mach-tegra/Kconfig"
978
Russell King95b8f202010-01-14 11:43:54 +0000979source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100980
Russell King95b8f202010-01-14 11:43:54 +0000981source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982
983source "arch/arm/mach-versatile/Kconfig"
984
Russell Kingceade892010-02-11 21:44:53 +0000985source "arch/arm/mach-vexpress/Kconfig"
986
wanzongshun7ec80dd2008-12-03 03:55:38 +0100987source "arch/arm/mach-w90x900/Kconfig"
988
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989# Definitions to make life easier
990config ARCH_ACORN
991 bool
992
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100993config PLAT_IOP
994 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700995 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +0000996 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100997
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400998config PLAT_ORION
999 bool
1000
Eric Miaobd5ce432009-01-20 12:06:01 +08001001config PLAT_PXA
1002 bool
1003
Russell Kingf4b8b312010-01-14 12:48:06 +00001004config PLAT_VERSATILE
1005 bool
1006
Russell Kinge3887712010-01-14 13:30:16 +00001007config ARM_TIMER_SP804
1008 bool
1009
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010source arch/arm/mm/Kconfig
1011
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001012config IWMMXT
1013 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +08001014 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
1015 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001016 help
1017 Enable support for iWMMXt context switching at run time if
1018 running on a CPU that supports it.
1019
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1021config XSCALE_PMU
1022 bool
1023 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1024 default y
1025
Jamie Iles0f4f0672010-02-02 20:23:15 +01001026config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001027 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1028 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001029 default y
1030 bool
1031
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001032if !MMU
1033source "arch/arm/Kconfig-nommu"
1034endif
1035
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001036config ARM_ERRATA_411920
1037 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001038 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001039 help
1040 Invalidation of the Instruction Cache operation can
1041 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1042 It does not affect the MPCore. This option enables the ARM Ltd.
1043 recommended workaround.
1044
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001045config ARM_ERRATA_430973
1046 bool "ARM errata: Stale prediction on replaced interworking branch"
1047 depends on CPU_V7
1048 help
1049 This option enables the workaround for the 430973 Cortex-A8
1050 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1051 interworking branch is replaced with another code sequence at the
1052 same virtual address, whether due to self-modifying code or virtual
1053 to physical address re-mapping, Cortex-A8 does not recover from the
1054 stale interworking branch prediction. This results in Cortex-A8
1055 executing the new code sequence in the incorrect ARM or Thumb state.
1056 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1057 and also flushes the branch target cache at every context switch.
1058 Note that setting specific bits in the ACTLR register may not be
1059 available in non-secure mode.
1060
Catalin Marinas855c5512009-04-30 17:06:15 +01001061config ARM_ERRATA_458693
1062 bool "ARM errata: Processor deadlock when a false hazard is created"
1063 depends on CPU_V7
1064 help
1065 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1066 erratum. For very specific sequences of memory operations, it is
1067 possible for a hazard condition intended for a cache line to instead
1068 be incorrectly associated with a different cache line. This false
1069 hazard might then cause a processor deadlock. The workaround enables
1070 the L1 caching of the NEON accesses and disables the PLD instruction
1071 in the ACTLR register. Note that setting specific bits in the ACTLR
1072 register may not be available in non-secure mode.
1073
Catalin Marinas0516e462009-04-30 17:06:20 +01001074config ARM_ERRATA_460075
1075 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1076 depends on CPU_V7
1077 help
1078 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1079 erratum. Any asynchronous access to the L2 cache may encounter a
1080 situation in which recent store transactions to the L2 cache are lost
1081 and overwritten with stale memory contents from external memory. The
1082 workaround disables the write-allocate mode for the L2 cache via the
1083 ACTLR register. Note that setting specific bits in the ACTLR register
1084 may not be available in non-secure mode.
1085
Will Deacon9f050272010-09-14 09:51:43 +01001086config ARM_ERRATA_742230
1087 bool "ARM errata: DMB operation may be faulty"
1088 depends on CPU_V7 && SMP
1089 help
1090 This option enables the workaround for the 742230 Cortex-A9
1091 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1092 between two write operations may not ensure the correct visibility
1093 ordering of the two writes. This workaround sets a specific bit in
1094 the diagnostic register of the Cortex-A9 which causes the DMB
1095 instruction to behave as a DSB, ensuring the correct behaviour of
1096 the two writes.
1097
Will Deacona672e992010-09-14 09:53:02 +01001098config ARM_ERRATA_742231
1099 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1100 depends on CPU_V7 && SMP
1101 help
1102 This option enables the workaround for the 742231 Cortex-A9
1103 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1104 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1105 accessing some data located in the same cache line, may get corrupted
1106 data due to bad handling of the address hazard when the line gets
1107 replaced from one of the CPUs at the same time as another CPU is
1108 accessing it. This workaround sets specific bits in the diagnostic
1109 register of the Cortex-A9 which reduces the linefill issuing
1110 capabilities of the processor.
1111
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001112config PL310_ERRATA_588369
1113 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1114 depends on CACHE_L2X0 && ARCH_OMAP4
1115 help
1116 The PL310 L2 cache controller implements three types of Clean &
1117 Invalidate maintenance operations: by Physical Address
1118 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1119 They are architecturally defined to behave as the execution of a
1120 clean operation followed immediately by an invalidate operation,
1121 both performing to the same memory location. This functionality
1122 is not correctly implemented in PL310 as clean lines are not
1123 invalidated as a result of these operations. Note that this errata
1124 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001125
1126config ARM_ERRATA_720789
1127 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1128 depends on CPU_V7 && SMP
1129 help
1130 This option enables the workaround for the 720789 Cortex-A9 (prior to
1131 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1132 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1133 As a consequence of this erratum, some TLB entries which should be
1134 invalidated are not, resulting in an incoherency in the system page
1135 tables. The workaround changes the TLB flushing routines to invalidate
1136 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001137
1138config ARM_ERRATA_743622
1139 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1140 depends on CPU_V7
1141 help
1142 This option enables the workaround for the 743622 Cortex-A9
1143 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1144 optimisation in the Cortex-A9 Store Buffer may lead to data
1145 corruption. This workaround sets a specific bit in the diagnostic
1146 register of the Cortex-A9 which disables the Store Buffer
1147 optimisation, preventing the defect from occurring. This has no
1148 visible impact on the overall performance or power consumption of the
1149 processor.
1150
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151endmenu
1152
1153source "arch/arm/common/Kconfig"
1154
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155menu "Bus support"
1156
1157config ARM_AMBA
1158 bool
1159
1160config ISA
1161 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162 help
1163 Find out whether you have ISA slots on your motherboard. ISA is the
1164 name of a bus system, i.e. the way the CPU talks to the other stuff
1165 inside your box. Other bus systems are PCI, EISA, MicroChannel
1166 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1167 newer boards don't support it. If you have ISA, say Y, otherwise N.
1168
Russell King065909b2006-01-04 15:44:16 +00001169# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170config ISA_DMA
1171 bool
Russell King065909b2006-01-04 15:44:16 +00001172 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001173
Russell King065909b2006-01-04 15:44:16 +00001174# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001175config ISA_DMA_API
1176 bool
Al Viro5cae8412005-05-04 05:39:22 +01001177
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178config PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +04001179 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 -07001180 help
1181 Find out whether you have a PCI motherboard. PCI is the name of a
1182 bus system, i.e. the way the CPU talks to the other stuff inside
1183 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1184 VESA. If you have PCI, say Y, otherwise N.
1185
Anton Vorontsov52882172010-04-19 13:20:49 +01001186config PCI_DOMAINS
1187 bool
1188 depends on PCI
1189
Matthew Wilcox36e23592007-07-10 10:54:40 -06001190config PCI_SYSCALL
1191 def_bool PCI
1192
Linus Torvalds1da177e2005-04-16 15:20:36 -07001193# Select the host bridge type
1194config PCI_HOST_VIA82C505
1195 bool
1196 depends on PCI && ARCH_SHARK
1197 default y
1198
Mike Rapoporta0113a92007-11-25 08:55:34 +01001199config PCI_HOST_ITE8152
1200 bool
1201 depends on PCI && MACH_ARMCORE
1202 default y
1203 select DMABOUNCE
1204
Linus Torvalds1da177e2005-04-16 15:20:36 -07001205source "drivers/pci/Kconfig"
1206
1207source "drivers/pcmcia/Kconfig"
1208
1209endmenu
1210
1211menu "Kernel Features"
1212
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001213source "kernel/time/Kconfig"
1214
Linus Torvalds1da177e2005-04-16 15:20:36 -07001215config SMP
1216 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001217 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001218 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001219 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001220 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1221 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
1222 ARCH_MSM_SCORPIONMP
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001223 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001224 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001225 help
1226 This enables support for systems with more than one CPU. If you have
1227 a system with only one CPU, like most personal computers, say N. If
1228 you have a system with more than one CPU, say Y.
1229
1230 If you say N here, the kernel will run on single and multiprocessor
1231 machines, but will use only one CPU of a multiprocessor machine. If
1232 you say Y here, the kernel will run on many, but not all, single
1233 processor machines. On a single processor machine, the kernel will
1234 run faster if you say N here.
1235
Adrian Bunk03502fa2008-02-03 15:50:21 +02001236 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001237 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001238 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001239
1240 If you don't know what to do here, say N.
1241
Russell Kingf00ec482010-09-04 10:47:48 +01001242config SMP_ON_UP
1243 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1244 depends on EXPERIMENTAL
1245 depends on SMP && !XIP && !THUMB2_KERNEL
1246 default y
1247 help
1248 SMP kernels contain instructions which fail on non-SMP processors.
1249 Enabling this option allows the kernel to modify itself to make
1250 these instructions safe. Disabling it allows about 1K of space
1251 savings.
1252
1253 If you don't know what to do here, say Y.
1254
Russell Kinga8cbcd92009-05-16 11:51:14 +01001255config HAVE_ARM_SCU
1256 bool
1257 depends on SMP
1258 help
1259 This option enables support for the ARM system coherency unit
1260
Russell Kingf32f4ce2009-05-16 12:14:21 +01001261config HAVE_ARM_TWD
1262 bool
1263 depends on SMP
1264 help
1265 This options enables support for the ARM timer and watchdog unit
1266
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001267choice
1268 prompt "Memory split"
1269 default VMSPLIT_3G
1270 help
1271 Select the desired split between kernel and user memory.
1272
1273 If you are not absolutely sure what you are doing, leave this
1274 option alone!
1275
1276 config VMSPLIT_3G
1277 bool "3G/1G user/kernel split"
1278 config VMSPLIT_2G
1279 bool "2G/2G user/kernel split"
1280 config VMSPLIT_1G
1281 bool "1G/3G user/kernel split"
1282endchoice
1283
1284config PAGE_OFFSET
1285 hex
1286 default 0x40000000 if VMSPLIT_1G
1287 default 0x80000000 if VMSPLIT_2G
1288 default 0xC0000000
1289
Linus Torvalds1da177e2005-04-16 15:20:36 -07001290config NR_CPUS
1291 int "Maximum number of CPUs (2-32)"
1292 range 2 32
1293 depends on SMP
1294 default "4"
1295
Russell Kinga054a812005-11-02 22:24:33 +00001296config HOTPLUG_CPU
1297 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1298 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001299 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001300 help
1301 Say Y here to experiment with turning CPUs off and on. CPUs
1302 can be controlled through /sys/devices/system/cpu.
1303
Russell King37ee16a2005-11-08 19:08:05 +00001304config LOCAL_TIMERS
1305 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001306 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001307 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001308 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001309 help
1310 Enable support for local timers on SMP platforms, rather then the
1311 legacy IPI broadcast method. Local timers allows the system
1312 accounting to be spread across the timer interval, preventing a
1313 "thundering herd" at every timer tick.
1314
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001315source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316
Russell Kingf8065812006-03-02 22:41:59 +00001317config HZ
1318 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001319 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001320 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001321 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001322 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001323 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001324 default 100
1325
Catalin Marinas16c79652009-07-24 12:33:02 +01001326config THUMB2_KERNEL
1327 bool "Compile the kernel in Thumb-2 mode"
1328 depends on CPU_V7 && EXPERIMENTAL
1329 select AEABI
1330 select ARM_ASM_UNIFIED
1331 help
1332 By enabling this option, the kernel will be compiled in
1333 Thumb-2 mode. A compiler/assembler that understand the unified
1334 ARM-Thumb syntax is needed.
1335
1336 If unsure, say N.
1337
Catalin Marinas0becb082009-07-24 12:32:53 +01001338config ARM_ASM_UNIFIED
1339 bool
1340
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001341config AEABI
1342 bool "Use the ARM EABI to compile the kernel"
1343 help
1344 This option allows for the kernel to be compiled using the latest
1345 ARM ABI (aka EABI). This is only useful if you are using a user
1346 space environment that is also compiled with EABI.
1347
1348 Since there are major incompatibilities between the legacy ABI and
1349 EABI, especially with regard to structure member alignment, this
1350 option also changes the kernel syscall calling convention to
1351 disambiguate both ABIs and allow for backward compatibility support
1352 (selected with CONFIG_OABI_COMPAT).
1353
1354 To use this you need GCC version 4.0.0 or later.
1355
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001356config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001357 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001358 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001359 default y
1360 help
1361 This option preserves the old syscall interface along with the
1362 new (ARM EABI) one. It also provides a compatibility layer to
1363 intercept syscalls that have structure arguments which layout
1364 in memory differs between the legacy ABI and the new ARM EABI
1365 (only for non "thumb" binaries). This option adds a tiny
1366 overhead to all syscalls and produces a slightly larger kernel.
1367 If you know you'll be using only pure EABI user space then you
1368 can say N here. If this option is not selected and you attempt
1369 to execute a legacy ABI binary then the result will be
1370 UNPREDICTABLE (in fact it can be predicted that it won't work
1371 at all). If in doubt say Y.
1372
Mel Gormaneb335752009-05-13 17:34:48 +01001373config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001374 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001375
Russell King05944d72006-11-30 20:43:51 +00001376config ARCH_SPARSEMEM_ENABLE
1377 bool
1378
Russell King07a2f732008-10-01 21:39:58 +01001379config ARCH_SPARSEMEM_DEFAULT
1380 def_bool ARCH_SPARSEMEM_ENABLE
1381
Russell King05944d72006-11-30 20:43:51 +00001382config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001383 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001384
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001385config HIGHMEM
1386 bool "High Memory Support (EXPERIMENTAL)"
1387 depends on MMU && EXPERIMENTAL
1388 help
1389 The address space of ARM processors is only 4 Gigabytes large
1390 and it has to accommodate user address space, kernel address
1391 space as well as some memory mapped IO. That means that, if you
1392 have a large amount of physical memory and/or IO, not all of the
1393 memory can be "permanently mapped" by the kernel. The physical
1394 memory that is not permanently mapped is called "high memory".
1395
1396 Depending on the selected kernel/user memory split, minimum
1397 vmalloc space and actual amount of RAM, you may not need this
1398 option which should result in a slightly faster kernel.
1399
1400 If unsure, say n.
1401
Russell King65cec8e2009-08-17 20:02:06 +01001402config HIGHPTE
1403 bool "Allocate 2nd-level pagetables from highmem"
1404 depends on HIGHMEM
1405 depends on !OUTER_CACHE
1406
Jamie Iles1b8873a2010-02-02 20:25:44 +01001407config HW_PERF_EVENTS
1408 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001409 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001410 default y
1411 help
1412 Enable hardware performance counter support for perf events. If
1413 disabled, perf events will use software events only.
1414
eric miao354e6f72010-06-25 09:46:09 +01001415config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001416 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001417 help
1418 This enables support for sparse irqs. This is useful in general
1419 as most CPUs have a fairly sparse array of IRQ vectors, which
1420 the irq_desc then maps directly on to. Systems with a high
1421 number of off-chip IRQs will want to treat this as
1422 experimental until they have been independently verified.
1423
Dave Hansen3f22ab22005-06-23 00:07:43 -07001424source "mm/Kconfig"
1425
Magnus Dammc1b2d972010-07-05 10:00:11 +01001426config FORCE_MAX_ZONEORDER
1427 int "Maximum zone order" if ARCH_SHMOBILE
1428 range 11 64 if ARCH_SHMOBILE
1429 default "9" if SA1111
1430 default "11"
1431 help
1432 The kernel memory allocator divides physically contiguous memory
1433 blocks into "zones", where each zone is a power of two number of
1434 pages. This option selects the largest power of two that the kernel
1435 keeps in the memory allocator. If you need to allocate very large
1436 blocks of physically contiguous memory, then you may need to
1437 increase this value.
1438
1439 This config option is actually maximum order plus one. For example,
1440 a value of 11 means that the largest free memory block is 2^10 pages.
1441
Linus Torvalds1da177e2005-04-16 15:20:36 -07001442config LEDS
1443 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001444 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001445 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1447 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001448 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001449 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001450 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451 help
1452 If you say Y here, the LEDs on your machine will be used
1453 to provide useful information about your current system status.
1454
1455 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1456 be able to select which LEDs are active using the options below. If
1457 you are compiling a kernel for the EBSA-110 or the LART however, the
1458 red LED will simply flash regularly to indicate that the system is
1459 still functional. It is safe to say Y here if you have a CATS
1460 system, but the driver will do nothing.
1461
1462config LEDS_TIMER
1463 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001464 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1465 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001467 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001468 default y if ARCH_EBSA110
1469 help
1470 If you say Y here, one of the system LEDs (the green one on the
1471 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1472 will flash regularly to indicate that the system is still
1473 operational. This is mainly useful to kernel hackers who are
1474 debugging unstable kernels.
1475
1476 The LART uses the same LED for both Timer LED and CPU usage LED
1477 functions. You may choose to use both, but the Timer LED function
1478 will overrule the CPU usage LED.
1479
1480config LEDS_CPU
1481 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001482 !ARCH_OMAP) \
1483 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1484 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001485 depends on LEDS
1486 help
1487 If you say Y here, the red LED will be used to give a good real
1488 time indication of CPU usage, by lighting whenever the idle task
1489 is not currently executing.
1490
1491 The LART uses the same LED for both Timer LED and CPU usage LED
1492 functions. You may choose to use both, but the Timer LED function
1493 will overrule the CPU usage LED.
1494
1495config ALIGNMENT_TRAP
1496 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001497 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001499 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001501 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1503 address divisible by 4. On 32-bit ARM processors, these non-aligned
1504 fetch/store instructions will be emulated in software if you say
1505 here, which has a severe performance impact. This is necessary for
1506 correct operation of some network protocols. With an IP-only
1507 configuration it is safe to say N, otherwise say Y.
1508
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001509config UACCESS_WITH_MEMCPY
1510 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1511 depends on MMU && EXPERIMENTAL
1512 default y if CPU_FEROCEON
1513 help
1514 Implement faster copy_to_user and clear_user methods for CPU
1515 cores where a 8-word STM instruction give significantly higher
1516 memory write throughput than a sequence of individual 32bit stores.
1517
1518 A possible side effect is a slight increase in scheduling latency
1519 between threads sharing the same address space if they invoke
1520 such copy operations with large buffers.
1521
1522 However, if the CPU data cache is using a write-allocate mode,
1523 this option is unlikely to provide any performance gain.
1524
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001525config SECCOMP
1526 bool
1527 prompt "Enable seccomp to safely compute untrusted bytecode"
1528 ---help---
1529 This kernel feature is useful for number crunching applications
1530 that may need to compute untrusted bytecode during their
1531 execution. By using pipes or other transports made available to
1532 the process as file descriptors supporting the read/write
1533 syscalls, it's possible to isolate those applications in
1534 their own address space using seccomp. Once seccomp is
1535 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1536 and the task is only allowed to execute a few safe syscalls
1537 defined by each seccomp mode.
1538
Nicolas Pitrec743f382010-05-24 23:55:42 -04001539config CC_STACKPROTECTOR
1540 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1541 help
1542 This option turns on the -fstack-protector GCC feature. This
1543 feature puts, at the beginning of functions, a canary value on
1544 the stack just before the return address, and validates
1545 the value just before actually returning. Stack based buffer
1546 overflows (that need to overwrite this return address) now also
1547 overwrite the canary, which gets detected and the attack is then
1548 neutralized via a kernel panic.
1549 This feature requires gcc version 4.2 or above.
1550
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001551config DEPRECATED_PARAM_STRUCT
1552 bool "Provide old way to pass kernel parameters"
1553 help
1554 This was deprecated in 2001 and announced to live on for 5 years.
1555 Some old boot loaders still use this way.
1556
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557endmenu
1558
1559menu "Boot options"
1560
1561# Compressed boot loader in ROM. Yes, we really want to ask about
1562# TEXT and BSS so we preserve their values in the config files.
1563config ZBOOT_ROM_TEXT
1564 hex "Compressed ROM boot loader base address"
1565 default "0"
1566 help
1567 The physical address at which the ROM-able zImage is to be
1568 placed in the target. Platforms which normally make use of
1569 ROM-able zImage formats normally set this to a suitable
1570 value in their defconfig file.
1571
1572 If ZBOOT_ROM is not enabled, this has no effect.
1573
1574config ZBOOT_ROM_BSS
1575 hex "Compressed ROM boot loader BSS address"
1576 default "0"
1577 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001578 The base address of an area of read/write memory in the target
1579 for the ROM-able zImage which must be available while the
1580 decompressor is running. It must be large enough to hold the
1581 entire decompressed kernel plus an additional 128 KiB.
1582 Platforms which normally make use of ROM-able zImage formats
1583 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001584
1585 If ZBOOT_ROM is not enabled, this has no effect.
1586
1587config ZBOOT_ROM
1588 bool "Compressed boot loader in ROM/flash"
1589 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1590 help
1591 Say Y here if you intend to execute your compressed kernel image
1592 (zImage) directly from ROM or flash. If unsure, say N.
1593
1594config CMDLINE
1595 string "Default kernel command string"
1596 default ""
1597 help
1598 On some architectures (EBSA110 and CATS), there is currently no way
1599 for the boot loader to pass arguments to the kernel. For these
1600 architectures, you should supply some command-line options at build
1601 time by entering them here. As a minimum, you should specify the
1602 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1603
Alexander Holler92d20402010-02-16 19:04:53 +01001604config CMDLINE_FORCE
1605 bool "Always use the default kernel command string"
1606 depends on CMDLINE != ""
1607 help
1608 Always use the default kernel command string, even if the boot
1609 loader passes other arguments to the kernel.
1610 This is useful if you cannot or don't want to change the
1611 command-line options your boot loader passes to the kernel.
1612
1613 If unsure, say N.
1614
Linus Torvalds1da177e2005-04-16 15:20:36 -07001615config XIP_KERNEL
1616 bool "Kernel Execute-In-Place from ROM"
1617 depends on !ZBOOT_ROM
1618 help
1619 Execute-In-Place allows the kernel to run from non-volatile storage
1620 directly addressable by the CPU, such as NOR flash. This saves RAM
1621 space since the text section of the kernel is not loaded from flash
1622 to RAM. Read-write sections, such as the data section and stack,
1623 are still copied to RAM. The XIP kernel is not compressed since
1624 it has to run directly from flash, so it will take more space to
1625 store it. The flash address used to link the kernel object files,
1626 and for storing it, is configuration dependent. Therefore, if you
1627 say Y here, you must know the proper physical address where to
1628 store the kernel image depending on your own flash memory usage.
1629
1630 Also note that the make target becomes "make xipImage" rather than
1631 "make zImage" or "make Image". The final kernel binary to put in
1632 ROM memory will be arch/arm/boot/xipImage.
1633
1634 If unsure, say N.
1635
1636config XIP_PHYS_ADDR
1637 hex "XIP Kernel Physical Location"
1638 depends on XIP_KERNEL
1639 default "0x00080000"
1640 help
1641 This is the physical address in your flash memory the kernel will
1642 be linked for and stored to. This address is dependent on your
1643 own flash usage.
1644
Richard Purdiec587e4a2007-02-06 21:29:00 +01001645config KEXEC
1646 bool "Kexec system call (EXPERIMENTAL)"
1647 depends on EXPERIMENTAL
1648 help
1649 kexec is a system call that implements the ability to shutdown your
1650 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001651 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001652 you can start any kernel with it, not just Linux.
1653
1654 It is an ongoing process to be certain the hardware in a machine
1655 is properly shutdown, so do not be surprised if this code does not
1656 initially work for you. It may help to enable device hotplugging
1657 support.
1658
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001659config ATAGS_PROC
1660 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001661 depends on KEXEC
1662 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001663 help
1664 Should the atags used to boot the kernel be exported in an "atags"
1665 file in procfs. Useful with kexec.
1666
Eric Miaoe69edc792010-07-05 15:56:50 +02001667config AUTO_ZRELADDR
1668 bool "Auto calculation of the decompressed kernel image address"
1669 depends on !ZBOOT_ROM && !ARCH_U300
1670 help
1671 ZRELADDR is the physical address where the decompressed kernel
1672 image will be placed. If AUTO_ZRELADDR is selected, the address
1673 will be determined at run-time by masking the current IP with
1674 0xf8000000. This assumes the zImage being placed in the first 128MB
1675 from start of memory.
1676
Linus Torvalds1da177e2005-04-16 15:20:36 -07001677endmenu
1678
Russell Kingac9d7ef2008-08-18 17:26:00 +01001679menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001680
Ben Dooks89c52ed2009-07-30 23:23:24 +01001681if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001682
1683source "drivers/cpufreq/Kconfig"
1684
Yong Shen64f102b2010-10-21 21:18:59 +08001685config CPU_FREQ_IMX
1686 tristate "CPUfreq driver for i.MX CPUs"
1687 depends on ARCH_MXC && CPU_FREQ
1688 help
1689 This enables the CPUfreq driver for i.MX CPUs.
1690
Linus Torvalds1da177e2005-04-16 15:20:36 -07001691config CPU_FREQ_SA1100
1692 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001693
1694config CPU_FREQ_SA1110
1695 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001696
1697config CPU_FREQ_INTEGRATOR
1698 tristate "CPUfreq driver for ARM Integrator CPUs"
1699 depends on ARCH_INTEGRATOR && CPU_FREQ
1700 default y
1701 help
1702 This enables the CPUfreq driver for ARM Integrator CPUs.
1703
1704 For details, take a look at <file:Documentation/cpu-freq>.
1705
1706 If in doubt, say Y.
1707
Russell King9e2697f2007-12-14 13:30:14 +00001708config CPU_FREQ_PXA
1709 bool
1710 depends on CPU_FREQ && ARCH_PXA && PXA25x
1711 default y
1712 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1713
Mark Brownb3748dd2009-06-15 11:23:20 +01001714config CPU_FREQ_S3C64XX
1715 bool "CPUfreq support for Samsung S3C64XX CPUs"
1716 depends on CPU_FREQ && CPU_S3C6410
1717
Ben Dooks9d56c022009-07-30 23:23:25 +01001718config CPU_FREQ_S3C
1719 bool
1720 help
1721 Internal configuration node for common cpufreq on Samsung SoC
1722
1723config CPU_FREQ_S3C24XX
1724 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1725 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1726 select CPU_FREQ_S3C
1727 help
1728 This enables the CPUfreq driver for the Samsung S3C24XX family
1729 of CPUs.
1730
1731 For details, take a look at <file:Documentation/cpu-freq>.
1732
1733 If in doubt, say N.
1734
1735config CPU_FREQ_S3C24XX_PLL
1736 bool "Support CPUfreq changing of PLL frequency"
1737 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1738 help
1739 Compile in support for changing the PLL frequency from the
1740 S3C24XX series CPUfreq driver. The PLL takes time to settle
1741 after a frequency change, so by default it is not enabled.
1742
1743 This also means that the PLL tables for the selected CPU(s) will
1744 be built which may increase the size of the kernel image.
1745
1746config CPU_FREQ_S3C24XX_DEBUG
1747 bool "Debug CPUfreq Samsung driver core"
1748 depends on CPU_FREQ_S3C24XX
1749 help
1750 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1751
1752config CPU_FREQ_S3C24XX_IODEBUG
1753 bool "Debug CPUfreq Samsung driver IO timing"
1754 depends on CPU_FREQ_S3C24XX
1755 help
1756 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1757
Ben Dookse6d197a2009-07-30 23:23:42 +01001758config CPU_FREQ_S3C24XX_DEBUGFS
1759 bool "Export debugfs for CPUFreq"
1760 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1761 help
1762 Export status information via debugfs.
1763
Linus Torvalds1da177e2005-04-16 15:20:36 -07001764endif
1765
Russell Kingac9d7ef2008-08-18 17:26:00 +01001766source "drivers/cpuidle/Kconfig"
1767
1768endmenu
1769
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770menu "Floating point emulation"
1771
1772comment "At least one emulation must be selected"
1773
1774config FPE_NWFPE
1775 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001776 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001777 ---help---
1778 Say Y to include the NWFPE floating point emulator in the kernel.
1779 This is necessary to run most binaries. Linux does not currently
1780 support floating point hardware so you need to say Y here even if
1781 your machine has an FPA or floating point co-processor podule.
1782
1783 You may say N here if you are going to load the Acorn FPEmulator
1784 early in the bootup.
1785
1786config FPE_NWFPE_XP
1787 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001788 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789 help
1790 Say Y to include 80-bit support in the kernel floating-point
1791 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1792 Note that gcc does not generate 80-bit operations by default,
1793 so in most cases this option only enlarges the size of the
1794 floating point emulator without any good reason.
1795
1796 You almost surely want to say N here.
1797
1798config FPE_FASTFPE
1799 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001800 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801 ---help---
1802 Say Y here to include the FAST floating point emulator in the kernel.
1803 This is an experimental much faster emulator which now also has full
1804 precision for the mantissa. It does not support any exceptions.
1805 It is very simple, and approximately 3-6 times faster than NWFPE.
1806
1807 It should be sufficient for most programs. It may be not suitable
1808 for scientific calculations, but you have to check this for yourself.
1809 If you do not feel you need a faster FP emulation you should better
1810 choose NWFPE.
1811
1812config VFP
1813 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001814 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001815 help
1816 Say Y to include VFP support code in the kernel. This is needed
1817 if your hardware includes a VFP unit.
1818
1819 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1820 release notes and additional status information.
1821
1822 Say N if your target does not have VFP hardware.
1823
Catalin Marinas25ebee02007-09-25 15:22:24 +01001824config VFPv3
1825 bool
1826 depends on VFP
1827 default y if CPU_V7
1828
Catalin Marinasb5872db2008-01-10 19:16:17 +01001829config NEON
1830 bool "Advanced SIMD (NEON) Extension support"
1831 depends on VFPv3 && CPU_V7
1832 help
1833 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1834 Extension.
1835
Linus Torvalds1da177e2005-04-16 15:20:36 -07001836endmenu
1837
1838menu "Userspace binary formats"
1839
1840source "fs/Kconfig.binfmt"
1841
1842config ARTHUR
1843 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001844 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001845 help
1846 Say Y here to include the kernel code necessary if you want to run
1847 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1848 experimental; if this sounds frightening, say N and sleep in peace.
1849 You can also say M here to compile this support as a module (which
1850 will be called arthur).
1851
1852endmenu
1853
1854menu "Power management options"
1855
Russell Kingeceab4a2005-11-15 11:31:41 +00001856source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001857
Johannes Bergf4cb5702007-12-08 02:14:00 +01001858config ARCH_SUSPEND_POSSIBLE
1859 def_bool y
1860
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861endmenu
1862
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001863source "net/Kconfig"
1864
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001865source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001866
1867source "fs/Kconfig"
1868
Linus Torvalds1da177e2005-04-16 15:20:36 -07001869source "arch/arm/Kconfig.debug"
1870
1871source "security/Kconfig"
1872
1873source "crypto/Kconfig"
1874
1875source "lib/Kconfig"