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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config ARM
9 bool
10 default y
David Woodhousee17c6d52008-06-17 12:19:34 +010011 select HAVE_AOUT
Adrian Bunk2064c942008-04-28 23:44:43 +020012 select HAVE_IDE
Alessandro Zummo12b824f2006-03-27 01:16:35 -080013 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000014 select SYS_SUPPORTS_APM_EMULATION
Will Deacon24b44a62010-01-20 19:05:07 +010015 select GENERIC_ATOMIC64 if (!CPU_32v6K)
Will Deaconfe166142010-04-30 11:37:51 +010016 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060017 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050018 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080019 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040020 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040021 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080022 select HAVE_KERNEL_GZIP
23 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010024 select HAVE_KERNEL_LZMA
Jamie Iles7ada1892010-02-02 20:24:58 +010025 select HAVE_PERF_EVENTS
26 select PERF_USE_VMALLOC
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
David Brownell0a938b92007-03-05 00:30:18 -080041config GENERIC_GPIO
42 bool
David Brownell0a938b92007-03-05 00:30:18 -080043
Kevin Hilman746140c2006-09-22 00:16:30 +010044config GENERIC_TIME
45 bool
John Stultz5cfc8ee2010-03-24 00:22:36 +000046 default y
47
48config ARCH_USES_GETTIMEOFFSET
49 bool
50 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010051
Kevin Hilman0567a0c2007-03-13 20:29:24 +010052config GENERIC_CLOCKEVENTS
53 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010054
Catalin Marinasa8655e82008-02-04 17:30:57 +010055config GENERIC_CLOCKEVENTS_BROADCAST
56 bool
57 depends on GENERIC_CLOCKEVENTS
58 default y if SMP && !LOCAL_TIMERS
59
Linus Walleijbc581772009-09-15 17:30:37 +010060config HAVE_TCM
61 bool
62 select GENERIC_ALLOCATOR
63
Russell Kinge119bff2010-01-10 17:23:29 +000064config HAVE_PROC_CPU
65 bool
66
Al Viro5ea81762007-02-11 15:41:31 +000067config NO_IOPORT
68 bool
Al Viro5ea81762007-02-11 15:41:31 +000069
Linus Torvalds1da177e2005-04-16 15:20:36 -070070config EISA
71 bool
72 ---help---
73 The Extended Industry Standard Architecture (EISA) bus was
74 developed as an open alternative to the IBM MicroChannel bus.
75
76 The EISA bus provided some of the features of the IBM MicroChannel
77 bus while maintaining backward compatibility with cards made for
78 the older ISA bus. The EISA bus saw limited use between 1988 and
79 1995 when it was made obsolete by the PCI bus.
80
81 Say Y here if you are building a kernel for an EISA-based machine.
82
83 Otherwise, say N.
84
85config SBUS
86 bool
87
88config MCA
89 bool
90 help
91 MicroChannel Architecture is found in some IBM PS/2 machines and
92 laptops. It is a bus system similar to PCI or ISA. See
93 <file:Documentation/mca.txt> (and especially the web page given
94 there) before attempting to build an MCA bus kernel.
95
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010096config GENERIC_HARDIRQS
97 bool
98 default y
99
Russell Kingf16fb1e2007-04-28 09:59:37 +0100100config STACKTRACE_SUPPORT
101 bool
102 default y
103
Nicolas Pitref76e9152008-04-24 01:31:46 -0400104config HAVE_LATENCYTOP_SUPPORT
105 bool
106 depends on !SMP
107 default y
108
Russell Kingf16fb1e2007-04-28 09:59:37 +0100109config LOCKDEP_SUPPORT
110 bool
111 default y
112
Russell King7ad1bcb2006-08-27 12:07:02 +0100113config TRACE_IRQFLAGS_SUPPORT
114 bool
115 default y
116
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100117config HARDIRQS_SW_RESEND
118 bool
119 default y
120
121config GENERIC_IRQ_PROBE
122 bool
123 default y
124
Nick Piggin95c354f2008-01-30 13:31:20 +0100125config GENERIC_LOCKBREAK
126 bool
127 default y
128 depends on SMP && PREEMPT
129
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130config RWSEM_GENERIC_SPINLOCK
131 bool
132 default y
133
134config RWSEM_XCHGADD_ALGORITHM
135 bool
136
David Howellsf0d1b0b2006-12-08 02:37:49 -0800137config ARCH_HAS_ILOG2_U32
138 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800139
140config ARCH_HAS_ILOG2_U64
141 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800142
Ben Dooks89c52ed2009-07-30 23:23:24 +0100143config ARCH_HAS_CPUFREQ
144 bool
145 help
146 Internal node to signify that the ARCH has CPUFREQ support
147 and that the relevant menu configurations are displayed for
148 it.
149
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800150config GENERIC_HWEIGHT
151 bool
152 default y
153
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154config GENERIC_CALIBRATE_DELAY
155 bool
156 default y
157
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100158config ARCH_MAY_HAVE_PC_FDC
159 bool
160
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800161config ZONE_DMA
162 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800163
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800164config NEED_DMA_MAP_STATE
165 def_bool y
166
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167config GENERIC_ISA_DMA
168 bool
169
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170config FIQ
171 bool
172
Al Viro034d2f52005-12-19 16:27:59 -0500173config ARCH_MTD_XIP
174 bool
175
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100176config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100177 def_bool y
178
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100179config ARM_L1_CACHE_SHIFT_6
180 bool
181 help
182 Setting ARM L1 cache line size to 64 Bytes.
183
Hyok S. Choic760fc12006-03-27 15:18:50 +0100184config VECTORS_BASE
185 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900186 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100187 default DRAM_BASE if REMAP_VECTORS_TO_RAM
188 default 0x00000000
189 help
190 The base address of exception vectors.
191
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192source "init/Kconfig"
193
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700194source "kernel/Kconfig.freezer"
195
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196menu "System Type"
197
Hyok S. Choi3c427972009-07-24 12:35:00 +0100198config MMU
199 bool "MMU-based Paged Memory Management Support"
200 default y
201 help
202 Select if you want MMU-based virtualised addressing space
203 support by paged memory management. If unsure, say 'Y'.
204
Russell Kingccf50e22010-03-15 19:03:06 +0000205#
206# The "ARM system type" choice list is ordered alphabetically by option
207# text. Please add new entries in the option alphabetic order.
208#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209choice
210 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000211 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100213config ARCH_AAEC2000
214 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000215 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100216 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700217 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000218 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100219 help
220 This enables support for systems based on the Agilent AAEC-2000
221
222config ARCH_INTEGRATOR
223 bool "ARM Ltd. Integrator family"
224 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100225 select ARCH_HAS_CPUFREQ
Russell Kingd72fbdf2008-11-08 20:08:08 +0000226 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000227 select ICST
Russell Kingb9cedda2010-01-15 18:10:33 +0000228 select GENERIC_TIME
Russell King13edd862010-01-15 21:49:23 +0000229 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000230 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100231 help
232 Support for ARM's Integrator platform.
233
234config ARCH_REALVIEW
235 bool "ARM Ltd. RealView family"
236 select ARM_AMBA
Russell Kingcf30fb42008-11-08 20:05:55 +0000237 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000238 select ICST
Catalin Marinas85802af2008-02-04 17:24:54 +0100239 select GENERIC_TIME
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
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100244 help
245 This enables support for ARM Ltd RealView boards.
246
247config ARCH_VERSATILE
248 bool "ARM Ltd. Versatile family"
249 select ARM_AMBA
250 select ARM_VIC
Russell King71a06da2008-11-08 20:13:53 +0000251 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000252 select ICST
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100253 select GENERIC_TIME
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
268 select GENERIC_TIME
269 select HAVE_CLK
270 select ICST
271 select PLAT_VERSATILE
272 help
273 This enables support for the ARM Ltd Versatile Express boards.
274
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100275config ARCH_AT91
276 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800277 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100278 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700279 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000280 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100281 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100282 This enables support for systems based on the Atmel AT91RM9200,
283 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100284
Russell Kingccf50e22010-03-15 19:03:06 +0000285config ARCH_BCMRING
286 bool "Broadcom BCMRING"
287 depends on MMU
288 select CPU_V6
289 select ARM_AMBA
290 select COMMON_CLKDEV
291 select GENERIC_TIME
292 select GENERIC_CLOCKEVENTS
293 select ARCH_WANT_OPTIONAL_GPIOLIB
294 help
295 Support for Broadcom's BCMRing platform.
296
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100298 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000299 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000300 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000301 help
302 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303
Russell King788c9702009-04-26 14:21:59 +0100304config ARCH_GEMINI
305 bool "Cortina Systems Gemini"
306 select CPU_FA526
307 select GENERIC_GPIO
308 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000309 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100310 help
311 Support for the Cortina Systems Gemini family SoCs
312
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313config ARCH_EBSA110
314 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000315 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100316 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000317 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000318 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 help
320 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000321 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 Ethernet interface, two PCMCIA sockets, two serial ports and a
323 parallel port.
324
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000325config ARCH_EP93XX
326 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000327 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000328 select ARM_AMBA
329 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100330 select GENERIC_GPIO
Russell Kingae696fd2008-11-30 17:11:49 +0000331 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700332 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100333 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000334 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000335 help
336 This enables support for the Cirrus EP93xx series of CPUs.
337
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338config ARCH_FOOTBRIDGE
339 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000340 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000342 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000343 help
344 Support for systems based on the DC21285 companion chip
345 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346
Russell King788c9702009-04-26 14:21:59 +0100347config ARCH_MXC
348 bool "Freescale MXC/iMX-based"
349 select GENERIC_TIME
350 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100351 select ARCH_REQUIRE_GPIOLIB
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100352 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100353 help
354 Support for Freescale MXC/iMX-based family of processors
355
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100356config ARCH_STMP3XXX
357 bool "Freescale STMP3xxx"
358 select CPU_ARM926T
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100359 select COMMON_CLKDEV
360 select ARCH_REQUIRE_GPIOLIB
361 select GENERIC_TIME
362 select GENERIC_CLOCKEVENTS
363 select GENERIC_GPIO
364 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
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100373 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000374 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100375 This enables support for systems based on the Hilscher NetX Soc
376
377config ARCH_H720X
378 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000379 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100380 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000381 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100382 help
383 This enables support for systems based on the Hynix HMS720x
384
Russell King3b938be2007-05-12 11:25:44 +0100385config ARCH_IOP13XX
386 bool "IOP13xx-based"
387 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000388 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100389 select PLAT_IOP
390 select PCI
391 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100392 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100393 help
394 Support for Intel's IOP13XX (XScale) family of processors.
395
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100396config ARCH_IOP32X
397 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100398 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000399 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100400 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100401 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100402 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100403 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000404 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100405 Support for Intel's 80219 and IOP32X (XScale) family of
406 processors.
407
408config ARCH_IOP33X
409 bool "IOP33x-based"
410 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000411 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100412 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100413 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100414 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100415 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100416 help
417 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418
Russell King3b938be2007-05-12 11:25:44 +0100419config ARCH_IXP23XX
420 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100421 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000422 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100423 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000424 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100425 help
Russell King3b938be2007-05-12 11:25:44 +0100426 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427
428config ARCH_IXP2000
429 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100430 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000431 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100432 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000433 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000434 help
435 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436
Russell King3b938be2007-05-12 11:25:44 +0100437config ARCH_IXP4XX
438 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100439 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000440 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100441 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100442 select GENERIC_TIME
443 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100444 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100445 help
Russell King3b938be2007-05-12 11:25:44 +0100446 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100447
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448config ARCH_L7200
449 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000450 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451 select FIQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000452 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 help
454 Say Y here if you intend to run this kernel on a LinkUp Systems
455 L7200 Software Development Board which uses an ARM720T processor.
456 Information on this board can be obtained at:
457
458 <http://www.linkupsys.com/>
459
460 If you have any questions or comments about the Linux kernel port
461 to this board, send e-mail to <sjhill@cotw.com>.
462
Saeed Bisharaedabd382009-08-06 15:12:43 +0300463config ARCH_DOVE
464 bool "Marvell Dove"
465 select PCI
466 select GENERIC_GPIO
467 select ARCH_REQUIRE_GPIOLIB
468 select GENERIC_TIME
469 select GENERIC_CLOCKEVENTS
470 select PLAT_ORION
471 help
472 Support for the Marvell Dove SoC 88AP510
473
Saeed Bishara651c74c2008-06-22 22:45:06 +0200474config ARCH_KIRKWOOD
475 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000476 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200477 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200478 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700479 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200480 select GENERIC_TIME
481 select GENERIC_CLOCKEVENTS
482 select PLAT_ORION
483 help
484 Support for the following Marvell Kirkwood series SoCs:
485 88F6180, 88F6192 and 88F6281.
486
Russell King788c9702009-04-26 14:21:59 +0100487config ARCH_LOKI
488 bool "Marvell Loki (88RC8480)"
489 select CPU_FEROCEON
490 select GENERIC_TIME
491 select GENERIC_CLOCKEVENTS
492 select PLAT_ORION
493 help
494 Support for the Marvell Loki (88RC8480) SoC.
495
496config ARCH_MV78XX0
497 bool "Marvell MV78xx0"
498 select CPU_FEROCEON
499 select PCI
500 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700501 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100502 select GENERIC_TIME
503 select GENERIC_CLOCKEVENTS
504 select PLAT_ORION
505 help
506 Support for the following Marvell MV78xx0 series SoCs:
507 MV781x0, MV782x0.
508
509config ARCH_ORION5X
510 bool "Marvell Orion"
511 depends on MMU
512 select CPU_FEROCEON
513 select PCI
514 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700515 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100516 select GENERIC_TIME
517 select GENERIC_CLOCKEVENTS
518 select PLAT_ORION
519 help
520 Support for the following Marvell Orion 5x series SoCs:
521 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
522 Orion-2 (5281), Orion-1-90 (6183).
523
524config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500525 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100526 depends on MMU
527 select GENERIC_GPIO
528 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100529 select COMMON_CLKDEV
530 select GENERIC_TIME
531 select GENERIC_CLOCKEVENTS
532 select TICK_ONESHOT
533 select PLAT_PXA
534 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500535 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100536
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100537config ARCH_KS8695
538 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000539 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100540 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000541 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000542 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100543 help
544 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
545 System-on-Chip devices.
546
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100547config ARCH_NS9XXX
548 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000549 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100550 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100551 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100552 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700553 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100554 help
555 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
556 System.
557
558 <http://www.digi.com/products/microprocessors/index.jsp>
559
Russell King788c9702009-04-26 14:21:59 +0100560config ARCH_W90X900
561 bool "Nuvoton W90X900 CPU"
562 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100563 select ARCH_REQUIRE_GPIOLIB
564 select GENERIC_GPIO
wanzongshun0e4a34b2009-06-10 15:50:44 +0100565 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100566 select GENERIC_TIME
567 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200568 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100569 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
570 At present, the w90x900 has been renamed nuc900, regarding
571 the ARM series product line, you can login the following
572 link address to know more.
573
574 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
575 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400576
wanzongshuna62e9032009-12-31 15:06:05 +0100577config ARCH_NUC93X
578 bool "Nuvoton NUC93X CPU"
579 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100580 select COMMON_CLKDEV
581 help
582 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
583 low-power and high performance MPEG-4/JPEG multimedia controller chip.
584
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100585config ARCH_PNX4008
586 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000587 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000588 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000589 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100590 help
591 This enables support for Philips PNX4008 mobile platform.
592
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700594 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100595 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500596 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100597 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800598 select GENERIC_GPIO
Russell King8c3abc72008-11-08 20:25:21 +0000599 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700600 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100601 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100602 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000603 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800604 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000605 help
eric miao2c8086a2007-09-11 19:13:17 -0700606 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607
Russell King788c9702009-04-26 14:21:59 +0100608config ARCH_MSM
609 bool "Qualcomm MSM"
610 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800611 select GENERIC_TIME
612 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800613 help
Russell King788c9702009-04-26 14:21:59 +0100614 Support for Qualcomm MSM7K based systems. This runs on the ARM11
615 apps processor of the MSM7K and depends on a shared memory
616 interface to the ARM9 modem processor which runs the baseband stack
617 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800618
Magnus Dammc793c1b2010-02-05 11:14:49 +0000619config ARCH_SHMOBILE
620 bool "Renesas SH-Mobile"
621 help
622 Support for Renesas's SH-Mobile ARM platforms
623
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624config ARCH_RPC
625 bool "RiscPC"
626 select ARCH_ACORN
627 select FIQ
628 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100629 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100630 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000631 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000632 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100633 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000634 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635 help
636 On the Acorn Risc-PC, Linux can support the internal IDE disk and
637 CD-ROM interface, serial and parallel port, and the floppy drive.
638
639config ARCH_SA1100
640 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000641 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100642 select ISA
Russell King05944d72006-11-30 20:43:51 +0000643 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500644 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100645 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000646 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800647 select GENERIC_GPIO
Russell Kingd142b6e72007-11-12 21:55:12 +0000648 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100649 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700650 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100651 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700652 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000653 help
654 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655
656config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100657 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800658 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100659 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700660 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000661 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700662 help
663 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
664 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000665 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666
Ben Dooksa08ab632008-10-21 14:06:39 +0100667config ARCH_S3C64XX
668 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000669 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900670 select CPU_V6
Ben Dooksa08ab632008-10-21 14:06:39 +0100671 select GENERIC_GPIO
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
Ben Dooksa08ab632008-10-21 14:06:39 +0100688 help
689 Samsung S3C64XX series based systems
690
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900691config ARCH_S5P6440
692 bool "Samsung S5P6440"
693 select CPU_V6
694 select GENERIC_GPIO
695 select HAVE_CLK
696 help
697 Samsung S5P6440 CPU based systems
698
Kukjin Kim550db7f2010-01-29 10:19:26 +0900699config ARCH_S5P6442
700 bool "Samsung S5P6442"
701 select CPU_V6
702 select GENERIC_GPIO
703 select HAVE_CLK
704 help
705 Samsung S5P6442 CPU based systems
706
Byungho Min5a7652f2009-06-23 21:39:42 +0900707config ARCH_S5PC1XX
708 bool "Samsung S5PC1XX"
709 select GENERIC_GPIO
710 select HAVE_CLK
711 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100712 select ARM_L1_CACHE_SHIFT_6
Byungho Min5a7652f2009-06-23 21:39:42 +0900713 help
714 Samsung S5PC1XX series based systems
715
Kukjin Kim170f4e42010-02-24 16:40:44 +0900716config ARCH_S5PV210
717 bool "Samsung S5PV210/S5PC110"
718 select CPU_V7
719 select GENERIC_GPIO
720 select HAVE_CLK
721 select ARM_L1_CACHE_SHIFT_6
722 help
723 Samsung S5PV210/S5PC110 series based systems
724
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725config ARCH_SHARK
726 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000727 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100728 select ISA
729 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100730 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100731 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000732 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000733 help
734 Support for the StrongARM based Digital DNARD machine, also known
735 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736
737config ARCH_LH7A40X
738 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000739 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100740 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
741 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000742 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743 help
744 Say Y here for systems based on one of the Sharp LH7A40X
745 System on a Chip processors. These CPUs include an ARM922T
746 core with a wide array of integrated devices for
747 hand-held and low-power applications.
748
Linus Walleijd98aac72009-04-27 10:21:46 +0100749config ARCH_U300
750 bool "ST-Ericsson U300 Series"
751 depends on MMU
752 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100753 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100754 select ARM_AMBA
755 select ARM_VIC
756 select GENERIC_TIME
757 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100758 select COMMON_CLKDEV
759 select GENERIC_GPIO
760 help
761 Support for ST-Ericsson U300 series mobile platforms.
762
Russell Kingccf50e22010-03-15 19:03:06 +0000763config ARCH_U8500
764 bool "ST-Ericsson U8500 Series"
765 select CPU_V7
766 select ARM_AMBA
767 select GENERIC_TIME
768 select GENERIC_CLOCKEVENTS
769 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100770 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000771 help
772 Support for ST-Ericsson's Ux500 architecture
773
774config ARCH_NOMADIK
775 bool "STMicroelectronics Nomadik"
776 select ARM_AMBA
777 select ARM_VIC
778 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000779 select COMMON_CLKDEV
780 select GENERIC_TIME
781 select GENERIC_CLOCKEVENTS
782 select GENERIC_GPIO
783 select ARCH_REQUIRE_GPIOLIB
784 help
785 Support for the Nomadik platform by ST-Ericsson
786
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100787config ARCH_DAVINCI
788 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000789 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100790 select GENERIC_TIME
791 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100792 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700793 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100794 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700795 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700796 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700797 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530798 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100799 help
800 Support for TI's DaVinci platform.
801
Russell King3b938be2007-05-12 11:25:44 +0100802config ARCH_OMAP
803 bool "TI OMAP"
804 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700805 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700806 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100807 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100808 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700809 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800810 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100811 help
812 Support for TI's OMAP platform (OMAP1 and OMAP2).
813
viresh kumarcee37e52010-04-01 12:31:05 +0100814config PLAT_SPEAR
815 bool "ST SPEAr"
816 select ARM_AMBA
817 select ARCH_REQUIRE_GPIOLIB
818 select COMMON_CLKDEV
819 select GENERIC_CLOCKEVENTS
820 select GENERIC_GPIO
821 select GENERIC_TIME
822 select HAVE_CLK
823 help
824 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
825
Linus Torvalds1da177e2005-04-16 15:20:36 -0700826endchoice
827
Russell Kingccf50e22010-03-15 19:03:06 +0000828#
829# This is sorted alphabetically by mach-* pathname. However, plat-*
830# Kconfigs may be included either alphabetically (according to the
831# plat- suffix) or along side the corresponding mach-* source.
832#
Russell King95b8f202010-01-14 11:43:54 +0000833source "arch/arm/mach-aaec2000/Kconfig"
834
835source "arch/arm/mach-at91/Kconfig"
836
837source "arch/arm/mach-bcmring/Kconfig"
838
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839source "arch/arm/mach-clps711x/Kconfig"
840
Russell King95b8f202010-01-14 11:43:54 +0000841source "arch/arm/mach-davinci/Kconfig"
842
843source "arch/arm/mach-dove/Kconfig"
844
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000845source "arch/arm/mach-ep93xx/Kconfig"
846
Linus Torvalds1da177e2005-04-16 15:20:36 -0700847source "arch/arm/mach-footbridge/Kconfig"
848
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200849source "arch/arm/mach-gemini/Kconfig"
850
Russell King95b8f202010-01-14 11:43:54 +0000851source "arch/arm/mach-h720x/Kconfig"
852
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853source "arch/arm/mach-integrator/Kconfig"
854
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100855source "arch/arm/mach-iop32x/Kconfig"
856
857source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858
Dan Williams285f5fa2006-12-07 02:59:39 +0100859source "arch/arm/mach-iop13xx/Kconfig"
860
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861source "arch/arm/mach-ixp4xx/Kconfig"
862
863source "arch/arm/mach-ixp2000/Kconfig"
864
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100865source "arch/arm/mach-ixp23xx/Kconfig"
866
Russell King95b8f202010-01-14 11:43:54 +0000867source "arch/arm/mach-kirkwood/Kconfig"
868
869source "arch/arm/mach-ks8695/Kconfig"
870
871source "arch/arm/mach-lh7a40x/Kconfig"
872
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200873source "arch/arm/mach-loki/Kconfig"
874
Russell King95b8f202010-01-14 11:43:54 +0000875source "arch/arm/mach-msm/Kconfig"
876
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200877source "arch/arm/mach-mv78xx0/Kconfig"
878
Russell King95b8f202010-01-14 11:43:54 +0000879source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880
Russell King95b8f202010-01-14 11:43:54 +0000881source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800882
Russell King95b8f202010-01-14 11:43:54 +0000883source "arch/arm/mach-nomadik/Kconfig"
884source "arch/arm/plat-nomadik/Kconfig"
885
886source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
Russell Kingd91a89102010-02-04 18:13:17 +0000888source "arch/arm/mach-nuc93x/Kconfig"
889
Tony Lindgrend48af152005-07-10 19:58:17 +0100890source "arch/arm/plat-omap/Kconfig"
891
892source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893
Tony Lindgren1dbae812005-11-10 14:26:51 +0000894source "arch/arm/mach-omap2/Kconfig"
895
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400896source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400897
Russell King95b8f202010-01-14 11:43:54 +0000898source "arch/arm/mach-pxa/Kconfig"
899source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900
Russell King95b8f202010-01-14 11:43:54 +0000901source "arch/arm/mach-mmp/Kconfig"
902
903source "arch/arm/mach-realview/Kconfig"
904
905source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300906
Ben Dookscf383672009-11-10 00:14:58 +0000907source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100908source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900909source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900910source "arch/arm/plat-s5pc1xx/Kconfig"
viresh kumarcee37e52010-04-01 12:31:05 +0100911source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100912
913if ARCH_S3C2410
914source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100916source "arch/arm/mach-s3c2412/Kconfig"
917source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100918source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100919endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920
Ben Dooksa08ab632008-10-21 14:06:39 +0100921if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900922source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100923endif
924
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900925source "arch/arm/mach-s5p6440/Kconfig"
926
Kukjin Kim550db7f2010-01-29 10:19:26 +0900927source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100928
Byungho Min5a7652f2009-06-23 21:39:42 +0900929if ARCH_S5PC1XX
930source "arch/arm/mach-s5pc100/Kconfig"
931endif
932
Kukjin Kim170f4e42010-02-24 16:40:44 +0900933source "arch/arm/mach-s5pv210/Kconfig"
934
Russell King882d01f2010-03-02 23:40:15 +0000935source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936
Russell King882d01f2010-03-02 23:40:15 +0000937source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800938
Russell King95b8f202010-01-14 11:43:54 +0000939source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100940
Russell King95b8f202010-01-14 11:43:54 +0000941source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942
943source "arch/arm/mach-versatile/Kconfig"
944
Russell Kingceade892010-02-11 21:44:53 +0000945source "arch/arm/mach-vexpress/Kconfig"
946
wanzongshun7ec80dd2008-12-03 03:55:38 +0100947source "arch/arm/mach-w90x900/Kconfig"
948
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949# Definitions to make life easier
950config ARCH_ACORN
951 bool
952
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100953config PLAT_IOP
954 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700955 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700956 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100957
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400958config PLAT_ORION
959 bool
960
Eric Miaobd5ce432009-01-20 12:06:01 +0800961config PLAT_PXA
962 bool
963
Russell Kingf4b8b312010-01-14 12:48:06 +0000964config PLAT_VERSATILE
965 bool
966
Russell Kinge3887712010-01-14 13:30:16 +0000967config ARM_TIMER_SP804
968 bool
969
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970source arch/arm/mm/Kconfig
971
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100972config IWMMXT
973 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800974 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
975 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100976 help
977 Enable support for iWMMXt context switching at run time if
978 running on a CPU that supports it.
979
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
981config XSCALE_PMU
982 bool
983 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
984 default y
985
Jamie Iles0f4f0672010-02-02 20:23:15 +0100986config CPU_HAS_PMU
987 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
988 default y
989 bool
990
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100991if !MMU
992source "arch/arm/Kconfig-nommu"
993endif
994
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100995config ARM_ERRATA_411920
996 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
997 depends on CPU_V6 && !SMP
998 help
999 Invalidation of the Instruction Cache operation can
1000 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1001 It does not affect the MPCore. This option enables the ARM Ltd.
1002 recommended workaround.
1003
Catalin Marinas7ce236fc2009-04-30 17:06:09 +01001004config ARM_ERRATA_430973
1005 bool "ARM errata: Stale prediction on replaced interworking branch"
1006 depends on CPU_V7
1007 help
1008 This option enables the workaround for the 430973 Cortex-A8
1009 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1010 interworking branch is replaced with another code sequence at the
1011 same virtual address, whether due to self-modifying code or virtual
1012 to physical address re-mapping, Cortex-A8 does not recover from the
1013 stale interworking branch prediction. This results in Cortex-A8
1014 executing the new code sequence in the incorrect ARM or Thumb state.
1015 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1016 and also flushes the branch target cache at every context switch.
1017 Note that setting specific bits in the ACTLR register may not be
1018 available in non-secure mode.
1019
Catalin Marinas855c5512009-04-30 17:06:15 +01001020config ARM_ERRATA_458693
1021 bool "ARM errata: Processor deadlock when a false hazard is created"
1022 depends on CPU_V7
1023 help
1024 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1025 erratum. For very specific sequences of memory operations, it is
1026 possible for a hazard condition intended for a cache line to instead
1027 be incorrectly associated with a different cache line. This false
1028 hazard might then cause a processor deadlock. The workaround enables
1029 the L1 caching of the NEON accesses and disables the PLD instruction
1030 in the ACTLR register. Note that setting specific bits in the ACTLR
1031 register may not be available in non-secure mode.
1032
Catalin Marinas0516e462009-04-30 17:06:20 +01001033config ARM_ERRATA_460075
1034 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1035 depends on CPU_V7
1036 help
1037 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1038 erratum. Any asynchronous access to the L2 cache may encounter a
1039 situation in which recent store transactions to the L2 cache are lost
1040 and overwritten with stale memory contents from external memory. The
1041 workaround disables the write-allocate mode for the L2 cache via the
1042 ACTLR register. Note that setting specific bits in the ACTLR register
1043 may not be available in non-secure mode.
1044
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001045config PL310_ERRATA_588369
1046 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1047 depends on CACHE_L2X0 && ARCH_OMAP4
1048 help
1049 The PL310 L2 cache controller implements three types of Clean &
1050 Invalidate maintenance operations: by Physical Address
1051 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1052 They are architecturally defined to behave as the execution of a
1053 clean operation followed immediately by an invalidate operation,
1054 both performing to the same memory location. This functionality
1055 is not correctly implemented in PL310 as clean lines are not
1056 invalidated as a result of these operations. Note that this errata
1057 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058endmenu
1059
1060source "arch/arm/common/Kconfig"
1061
1062config FORCE_MAX_ZONEORDER
1063 int
1064 depends on SA1111
1065 default "9"
1066
1067menu "Bus support"
1068
1069config ARM_AMBA
1070 bool
1071
1072config ISA
1073 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074 help
1075 Find out whether you have ISA slots on your motherboard. ISA is the
1076 name of a bus system, i.e. the way the CPU talks to the other stuff
1077 inside your box. Other bus systems are PCI, EISA, MicroChannel
1078 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1079 newer boards don't support it. If you have ISA, say Y, otherwise N.
1080
Russell King065909b2006-01-04 15:44:16 +00001081# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001082config ISA_DMA
1083 bool
Russell King065909b2006-01-04 15:44:16 +00001084 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001085
Russell King065909b2006-01-04 15:44:16 +00001086# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001087config ISA_DMA_API
1088 bool
Al Viro5cae8412005-05-04 05:39:22 +01001089
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +01001091 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001092 help
1093 Find out whether you have a PCI motherboard. PCI is the name of a
1094 bus system, i.e. the way the CPU talks to the other stuff inside
1095 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1096 VESA. If you have PCI, say Y, otherwise N.
1097
Anton Vorontsov52882172010-04-19 13:20:49 +01001098config PCI_DOMAINS
1099 bool
1100 depends on PCI
1101
Matthew Wilcox36e23592007-07-10 10:54:40 -06001102config PCI_SYSCALL
1103 def_bool PCI
1104
Linus Torvalds1da177e2005-04-16 15:20:36 -07001105# Select the host bridge type
1106config PCI_HOST_VIA82C505
1107 bool
1108 depends on PCI && ARCH_SHARK
1109 default y
1110
Mike Rapoporta0113a92007-11-25 08:55:34 +01001111config PCI_HOST_ITE8152
1112 bool
1113 depends on PCI && MACH_ARMCORE
1114 default y
1115 select DMABOUNCE
1116
Linus Torvalds1da177e2005-04-16 15:20:36 -07001117source "drivers/pci/Kconfig"
1118
1119source "drivers/pcmcia/Kconfig"
1120
1121endmenu
1122
1123menu "Kernel Features"
1124
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001125source "kernel/time/Kconfig"
1126
Linus Torvalds1da177e2005-04-16 15:20:36 -07001127config SMP
1128 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001129 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Russell King59ac59f2010-02-11 21:56:07 +00001130 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
1131 ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Russell Kingbc282482009-05-17 18:58:34 +01001132 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001133 select USE_GENERIC_SMP_HELPERS
Russell King59ac59f2010-02-11 21:56:07 +00001134 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001135 help
1136 This enables support for systems with more than one CPU. If you have
1137 a system with only one CPU, like most personal computers, say N. If
1138 you have a system with more than one CPU, say Y.
1139
1140 If you say N here, the kernel will run on single and multiprocessor
1141 machines, but will use only one CPU of a multiprocessor machine. If
1142 you say Y here, the kernel will run on many, but not all, single
1143 processor machines. On a single processor machine, the kernel will
1144 run faster if you say N here.
1145
Adrian Bunk03502fa2008-02-03 15:50:21 +02001146 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001147 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1148 <http://www.linuxdoc.org/docs.html#howto>.
1149
1150 If you don't know what to do here, say N.
1151
Russell Kinga8cbcd92009-05-16 11:51:14 +01001152config HAVE_ARM_SCU
1153 bool
1154 depends on SMP
1155 help
1156 This option enables support for the ARM system coherency unit
1157
Russell Kingf32f4ce2009-05-16 12:14:21 +01001158config HAVE_ARM_TWD
1159 bool
1160 depends on SMP
1161 help
1162 This options enables support for the ARM timer and watchdog unit
1163
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001164choice
1165 prompt "Memory split"
1166 default VMSPLIT_3G
1167 help
1168 Select the desired split between kernel and user memory.
1169
1170 If you are not absolutely sure what you are doing, leave this
1171 option alone!
1172
1173 config VMSPLIT_3G
1174 bool "3G/1G user/kernel split"
1175 config VMSPLIT_2G
1176 bool "2G/2G user/kernel split"
1177 config VMSPLIT_1G
1178 bool "1G/3G user/kernel split"
1179endchoice
1180
1181config PAGE_OFFSET
1182 hex
1183 default 0x40000000 if VMSPLIT_1G
1184 default 0x80000000 if VMSPLIT_2G
1185 default 0xC0000000
1186
Linus Torvalds1da177e2005-04-16 15:20:36 -07001187config NR_CPUS
1188 int "Maximum number of CPUs (2-32)"
1189 range 2 32
1190 depends on SMP
1191 default "4"
1192
Russell Kinga054a812005-11-02 22:24:33 +00001193config HOTPLUG_CPU
1194 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1195 depends on SMP && HOTPLUG && EXPERIMENTAL
1196 help
1197 Say Y here to experiment with turning CPUs off and on. CPUs
1198 can be controlled through /sys/devices/system/cpu.
1199
Russell King37ee16a2005-11-08 19:08:05 +00001200config LOCAL_TIMERS
1201 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001202 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001203 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001204 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001205 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001206 help
1207 Enable support for local timers on SMP platforms, rather then the
1208 legacy IPI broadcast method. Local timers allows the system
1209 accounting to be spread across the timer interval, preventing a
1210 "thundering herd" at every timer tick.
1211
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001212source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001213
Russell Kingf8065812006-03-02 22:41:59 +00001214config HZ
1215 int
1216 default 128 if ARCH_L7200
Kukjin Kim170f4e42010-02-24 16:40:44 +09001217 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001218 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001219 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001220 default 100
1221
Catalin Marinas16c79652009-07-24 12:33:02 +01001222config THUMB2_KERNEL
1223 bool "Compile the kernel in Thumb-2 mode"
1224 depends on CPU_V7 && EXPERIMENTAL
1225 select AEABI
1226 select ARM_ASM_UNIFIED
1227 help
1228 By enabling this option, the kernel will be compiled in
1229 Thumb-2 mode. A compiler/assembler that understand the unified
1230 ARM-Thumb syntax is needed.
1231
1232 If unsure, say N.
1233
Catalin Marinas0becb082009-07-24 12:32:53 +01001234config ARM_ASM_UNIFIED
1235 bool
1236
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001237config AEABI
1238 bool "Use the ARM EABI to compile the kernel"
1239 help
1240 This option allows for the kernel to be compiled using the latest
1241 ARM ABI (aka EABI). This is only useful if you are using a user
1242 space environment that is also compiled with EABI.
1243
1244 Since there are major incompatibilities between the legacy ABI and
1245 EABI, especially with regard to structure member alignment, this
1246 option also changes the kernel syscall calling convention to
1247 disambiguate both ABIs and allow for backward compatibility support
1248 (selected with CONFIG_OABI_COMPAT).
1249
1250 To use this you need GCC version 4.0.0 or later.
1251
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001252config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001253 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001254 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001255 default y
1256 help
1257 This option preserves the old syscall interface along with the
1258 new (ARM EABI) one. It also provides a compatibility layer to
1259 intercept syscalls that have structure arguments which layout
1260 in memory differs between the legacy ABI and the new ARM EABI
1261 (only for non "thumb" binaries). This option adds a tiny
1262 overhead to all syscalls and produces a slightly larger kernel.
1263 If you know you'll be using only pure EABI user space then you
1264 can say N here. If this option is not selected and you attempt
1265 to execute a legacy ABI binary then the result will be
1266 UNPREDICTABLE (in fact it can be predicted that it won't work
1267 at all). If in doubt say Y.
1268
Mel Gormaneb335752009-05-13 17:34:48 +01001269config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001270 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001271
Russell King07a2f732008-10-01 21:39:58 +01001272# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001273config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275
Russell King05944d72006-11-30 20:43:51 +00001276config ARCH_SPARSEMEM_ENABLE
1277 bool
1278
Russell King07a2f732008-10-01 21:39:58 +01001279config ARCH_SPARSEMEM_DEFAULT
1280 def_bool ARCH_SPARSEMEM_ENABLE
1281
Russell King05944d72006-11-30 20:43:51 +00001282config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001283 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001284
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001285config NODES_SHIFT
1286 int
1287 default "4" if ARCH_LH7A40X
1288 default "2"
1289 depends on NEED_MULTIPLE_NODES
1290
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001291config HIGHMEM
1292 bool "High Memory Support (EXPERIMENTAL)"
1293 depends on MMU && EXPERIMENTAL
1294 help
1295 The address space of ARM processors is only 4 Gigabytes large
1296 and it has to accommodate user address space, kernel address
1297 space as well as some memory mapped IO. That means that, if you
1298 have a large amount of physical memory and/or IO, not all of the
1299 memory can be "permanently mapped" by the kernel. The physical
1300 memory that is not permanently mapped is called "high memory".
1301
1302 Depending on the selected kernel/user memory split, minimum
1303 vmalloc space and actual amount of RAM, you may not need this
1304 option which should result in a slightly faster kernel.
1305
1306 If unsure, say n.
1307
Russell King65cec8e2009-08-17 20:02:06 +01001308config HIGHPTE
1309 bool "Allocate 2nd-level pagetables from highmem"
1310 depends on HIGHMEM
1311 depends on !OUTER_CACHE
1312
Jamie Iles1b8873a2010-02-02 20:25:44 +01001313config HW_PERF_EVENTS
1314 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001315 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001316 default y
1317 help
1318 Enable hardware performance counter support for perf events. If
1319 disabled, perf events will use software events only.
1320
Dave Hansen3f22ab22005-06-23 00:07:43 -07001321source "mm/Kconfig"
1322
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323config LEDS
1324 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001325 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001326 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1328 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001329 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001330 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042fb2009-05-30 13:56:13 +01001331 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332 help
1333 If you say Y here, the LEDs on your machine will be used
1334 to provide useful information about your current system status.
1335
1336 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1337 be able to select which LEDs are active using the options below. If
1338 you are compiling a kernel for the EBSA-110 or the LART however, the
1339 red LED will simply flash regularly to indicate that the system is
1340 still functional. It is safe to say Y here if you have a CATS
1341 system, but the driver will do nothing.
1342
1343config LEDS_TIMER
1344 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001345 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1346 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001347 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001348 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349 default y if ARCH_EBSA110
1350 help
1351 If you say Y here, one of the system LEDs (the green one on the
1352 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1353 will flash regularly to indicate that the system is still
1354 operational. This is mainly useful to kernel hackers who are
1355 debugging unstable kernels.
1356
1357 The LART uses the same LED for both Timer LED and CPU usage LED
1358 functions. You may choose to use both, but the Timer LED function
1359 will overrule the CPU usage LED.
1360
1361config LEDS_CPU
1362 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001363 !ARCH_OMAP) \
1364 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1365 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366 depends on LEDS
1367 help
1368 If you say Y here, the red LED will be used to give a good real
1369 time indication of CPU usage, by lighting whenever the idle task
1370 is not currently executing.
1371
1372 The LART uses the same LED for both Timer LED and CPU usage LED
1373 functions. You may choose to use both, but the Timer LED function
1374 will overrule the CPU usage LED.
1375
1376config ALIGNMENT_TRAP
1377 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001378 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001380 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001382 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1384 address divisible by 4. On 32-bit ARM processors, these non-aligned
1385 fetch/store instructions will be emulated in software if you say
1386 here, which has a severe performance impact. This is necessary for
1387 correct operation of some network protocols. With an IP-only
1388 configuration it is safe to say N, otherwise say Y.
1389
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001390config UACCESS_WITH_MEMCPY
1391 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1392 depends on MMU && EXPERIMENTAL
1393 default y if CPU_FEROCEON
1394 help
1395 Implement faster copy_to_user and clear_user methods for CPU
1396 cores where a 8-word STM instruction give significantly higher
1397 memory write throughput than a sequence of individual 32bit stores.
1398
1399 A possible side effect is a slight increase in scheduling latency
1400 between threads sharing the same address space if they invoke
1401 such copy operations with large buffers.
1402
1403 However, if the CPU data cache is using a write-allocate mode,
1404 this option is unlikely to provide any performance gain.
1405
Linus Torvalds1da177e2005-04-16 15:20:36 -07001406endmenu
1407
1408menu "Boot options"
1409
1410# Compressed boot loader in ROM. Yes, we really want to ask about
1411# TEXT and BSS so we preserve their values in the config files.
1412config ZBOOT_ROM_TEXT
1413 hex "Compressed ROM boot loader base address"
1414 default "0"
1415 help
1416 The physical address at which the ROM-able zImage is to be
1417 placed in the target. Platforms which normally make use of
1418 ROM-able zImage formats normally set this to a suitable
1419 value in their defconfig file.
1420
1421 If ZBOOT_ROM is not enabled, this has no effect.
1422
1423config ZBOOT_ROM_BSS
1424 hex "Compressed ROM boot loader BSS address"
1425 default "0"
1426 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001427 The base address of an area of read/write memory in the target
1428 for the ROM-able zImage which must be available while the
1429 decompressor is running. It must be large enough to hold the
1430 entire decompressed kernel plus an additional 128 KiB.
1431 Platforms which normally make use of ROM-able zImage formats
1432 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001433
1434 If ZBOOT_ROM is not enabled, this has no effect.
1435
1436config ZBOOT_ROM
1437 bool "Compressed boot loader in ROM/flash"
1438 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1439 help
1440 Say Y here if you intend to execute your compressed kernel image
1441 (zImage) directly from ROM or flash. If unsure, say N.
1442
1443config CMDLINE
1444 string "Default kernel command string"
1445 default ""
1446 help
1447 On some architectures (EBSA110 and CATS), there is currently no way
1448 for the boot loader to pass arguments to the kernel. For these
1449 architectures, you should supply some command-line options at build
1450 time by entering them here. As a minimum, you should specify the
1451 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1452
1453config XIP_KERNEL
1454 bool "Kernel Execute-In-Place from ROM"
1455 depends on !ZBOOT_ROM
1456 help
1457 Execute-In-Place allows the kernel to run from non-volatile storage
1458 directly addressable by the CPU, such as NOR flash. This saves RAM
1459 space since the text section of the kernel is not loaded from flash
1460 to RAM. Read-write sections, such as the data section and stack,
1461 are still copied to RAM. The XIP kernel is not compressed since
1462 it has to run directly from flash, so it will take more space to
1463 store it. The flash address used to link the kernel object files,
1464 and for storing it, is configuration dependent. Therefore, if you
1465 say Y here, you must know the proper physical address where to
1466 store the kernel image depending on your own flash memory usage.
1467
1468 Also note that the make target becomes "make xipImage" rather than
1469 "make zImage" or "make Image". The final kernel binary to put in
1470 ROM memory will be arch/arm/boot/xipImage.
1471
1472 If unsure, say N.
1473
1474config XIP_PHYS_ADDR
1475 hex "XIP Kernel Physical Location"
1476 depends on XIP_KERNEL
1477 default "0x00080000"
1478 help
1479 This is the physical address in your flash memory the kernel will
1480 be linked for and stored to. This address is dependent on your
1481 own flash usage.
1482
Richard Purdiec587e4a2007-02-06 21:29:00 +01001483config KEXEC
1484 bool "Kexec system call (EXPERIMENTAL)"
1485 depends on EXPERIMENTAL
1486 help
1487 kexec is a system call that implements the ability to shutdown your
1488 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001489 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001490 you can start any kernel with it, not just Linux.
1491
1492 It is an ongoing process to be certain the hardware in a machine
1493 is properly shutdown, so do not be surprised if this code does not
1494 initially work for you. It may help to enable device hotplugging
1495 support.
1496
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001497config ATAGS_PROC
1498 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001499 depends on KEXEC
1500 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001501 help
1502 Should the atags used to boot the kernel be exported in an "atags"
1503 file in procfs. Useful with kexec.
1504
Linus Torvalds1da177e2005-04-16 15:20:36 -07001505endmenu
1506
Russell Kingac9d7ef2008-08-18 17:26:00 +01001507menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001508
Ben Dooks89c52ed2009-07-30 23:23:24 +01001509if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001510
1511source "drivers/cpufreq/Kconfig"
1512
1513config CPU_FREQ_SA1100
1514 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001515
1516config CPU_FREQ_SA1110
1517 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001518
1519config CPU_FREQ_INTEGRATOR
1520 tristate "CPUfreq driver for ARM Integrator CPUs"
1521 depends on ARCH_INTEGRATOR && CPU_FREQ
1522 default y
1523 help
1524 This enables the CPUfreq driver for ARM Integrator CPUs.
1525
1526 For details, take a look at <file:Documentation/cpu-freq>.
1527
1528 If in doubt, say Y.
1529
Russell King9e2697f2007-12-14 13:30:14 +00001530config CPU_FREQ_PXA
1531 bool
1532 depends on CPU_FREQ && ARCH_PXA && PXA25x
1533 default y
1534 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1535
Mark Brownb3748dd2009-06-15 11:23:20 +01001536config CPU_FREQ_S3C64XX
1537 bool "CPUfreq support for Samsung S3C64XX CPUs"
1538 depends on CPU_FREQ && CPU_S3C6410
1539
Ben Dooks9d56c022009-07-30 23:23:25 +01001540config CPU_FREQ_S3C
1541 bool
1542 help
1543 Internal configuration node for common cpufreq on Samsung SoC
1544
1545config CPU_FREQ_S3C24XX
1546 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1547 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1548 select CPU_FREQ_S3C
1549 help
1550 This enables the CPUfreq driver for the Samsung S3C24XX family
1551 of CPUs.
1552
1553 For details, take a look at <file:Documentation/cpu-freq>.
1554
1555 If in doubt, say N.
1556
1557config CPU_FREQ_S3C24XX_PLL
1558 bool "Support CPUfreq changing of PLL frequency"
1559 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1560 help
1561 Compile in support for changing the PLL frequency from the
1562 S3C24XX series CPUfreq driver. The PLL takes time to settle
1563 after a frequency change, so by default it is not enabled.
1564
1565 This also means that the PLL tables for the selected CPU(s) will
1566 be built which may increase the size of the kernel image.
1567
1568config CPU_FREQ_S3C24XX_DEBUG
1569 bool "Debug CPUfreq Samsung driver core"
1570 depends on CPU_FREQ_S3C24XX
1571 help
1572 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1573
1574config CPU_FREQ_S3C24XX_IODEBUG
1575 bool "Debug CPUfreq Samsung driver IO timing"
1576 depends on CPU_FREQ_S3C24XX
1577 help
1578 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1579
Ben Dookse6d197a2009-07-30 23:23:42 +01001580config CPU_FREQ_S3C24XX_DEBUGFS
1581 bool "Export debugfs for CPUFreq"
1582 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1583 help
1584 Export status information via debugfs.
1585
Linus Torvalds1da177e2005-04-16 15:20:36 -07001586endif
1587
Russell Kingac9d7ef2008-08-18 17:26:00 +01001588source "drivers/cpuidle/Kconfig"
1589
1590endmenu
1591
Linus Torvalds1da177e2005-04-16 15:20:36 -07001592menu "Floating point emulation"
1593
1594comment "At least one emulation must be selected"
1595
1596config FPE_NWFPE
1597 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001598 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001599 ---help---
1600 Say Y to include the NWFPE floating point emulator in the kernel.
1601 This is necessary to run most binaries. Linux does not currently
1602 support floating point hardware so you need to say Y here even if
1603 your machine has an FPA or floating point co-processor podule.
1604
1605 You may say N here if you are going to load the Acorn FPEmulator
1606 early in the bootup.
1607
1608config FPE_NWFPE_XP
1609 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001610 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001611 help
1612 Say Y to include 80-bit support in the kernel floating-point
1613 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1614 Note that gcc does not generate 80-bit operations by default,
1615 so in most cases this option only enlarges the size of the
1616 floating point emulator without any good reason.
1617
1618 You almost surely want to say N here.
1619
1620config FPE_FASTFPE
1621 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001622 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001623 ---help---
1624 Say Y here to include the FAST floating point emulator in the kernel.
1625 This is an experimental much faster emulator which now also has full
1626 precision for the mantissa. It does not support any exceptions.
1627 It is very simple, and approximately 3-6 times faster than NWFPE.
1628
1629 It should be sufficient for most programs. It may be not suitable
1630 for scientific calculations, but you have to check this for yourself.
1631 If you do not feel you need a faster FP emulation you should better
1632 choose NWFPE.
1633
1634config VFP
1635 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001636 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001637 help
1638 Say Y to include VFP support code in the kernel. This is needed
1639 if your hardware includes a VFP unit.
1640
1641 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1642 release notes and additional status information.
1643
1644 Say N if your target does not have VFP hardware.
1645
Catalin Marinas25ebee02007-09-25 15:22:24 +01001646config VFPv3
1647 bool
1648 depends on VFP
1649 default y if CPU_V7
1650
Catalin Marinasb5872db2008-01-10 19:16:17 +01001651config NEON
1652 bool "Advanced SIMD (NEON) Extension support"
1653 depends on VFPv3 && CPU_V7
1654 help
1655 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1656 Extension.
1657
Linus Torvalds1da177e2005-04-16 15:20:36 -07001658endmenu
1659
1660menu "Userspace binary formats"
1661
1662source "fs/Kconfig.binfmt"
1663
1664config ARTHUR
1665 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001666 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001667 help
1668 Say Y here to include the kernel code necessary if you want to run
1669 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1670 experimental; if this sounds frightening, say N and sleep in peace.
1671 You can also say M here to compile this support as a module (which
1672 will be called arthur).
1673
1674endmenu
1675
1676menu "Power management options"
1677
Russell Kingeceab4a2005-11-15 11:31:41 +00001678source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001679
Johannes Bergf4cb5702007-12-08 02:14:00 +01001680config ARCH_SUSPEND_POSSIBLE
1681 def_bool y
1682
Linus Torvalds1da177e2005-04-16 15:20:36 -07001683endmenu
1684
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001685source "net/Kconfig"
1686
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001687source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001688
1689source "fs/Kconfig"
1690
Linus Torvalds1da177e2005-04-16 15:20:36 -07001691source "arch/arm/Kconfig.debug"
1692
1693source "security/Kconfig"
1694
1695source "crypto/Kconfig"
1696
1697source "lib/Kconfig"