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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)
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050016 select HAVE_OPROFILE
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
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500184if OPROFILE
185
186config OPROFILE_ARMV6
187 def_bool y
188 depends on CPU_V6 && !SMP
189 select OPROFILE_ARM11_CORE
190
191config OPROFILE_MPCORE
192 def_bool y
193 depends on CPU_V6 && SMP
194 select OPROFILE_ARM11_CORE
195
196config OPROFILE_ARM11_CORE
197 bool
198
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100199config OPROFILE_ARMV7
200 def_bool y
201 depends on CPU_V7 && !SMP
202 bool
203
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500204endif
205
Hyok S. Choic760fc12006-03-27 15:18:50 +0100206config VECTORS_BASE
207 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900208 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100209 default DRAM_BASE if REMAP_VECTORS_TO_RAM
210 default 0x00000000
211 help
212 The base address of exception vectors.
213
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214source "init/Kconfig"
215
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700216source "kernel/Kconfig.freezer"
217
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218menu "System Type"
219
Hyok S. Choi3c427972009-07-24 12:35:00 +0100220config MMU
221 bool "MMU-based Paged Memory Management Support"
222 default y
223 help
224 Select if you want MMU-based virtualised addressing space
225 support by paged memory management. If unsure, say 'Y'.
226
Russell Kingccf50e22010-03-15 19:03:06 +0000227#
228# The "ARM system type" choice list is ordered alphabetically by option
229# text. Please add new entries in the option alphabetic order.
230#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231choice
232 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000233 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100235config ARCH_AAEC2000
236 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000237 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100238 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700239 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000240 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100241 help
242 This enables support for systems based on the Agilent AAEC-2000
243
244config ARCH_INTEGRATOR
245 bool "ARM Ltd. Integrator family"
246 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100247 select ARCH_HAS_CPUFREQ
Russell Kingd72fbdf2008-11-08 20:08:08 +0000248 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100249 select ICST525
250 help
251 Support for ARM's Integrator platform.
252
253config ARCH_REALVIEW
254 bool "ARM Ltd. RealView family"
255 select ARM_AMBA
Russell Kingcf30fb42008-11-08 20:05:55 +0000256 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100257 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100258 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100259 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100260 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100261 help
262 This enables support for ARM Ltd RealView boards.
263
264config ARCH_VERSATILE
265 bool "ARM Ltd. Versatile family"
266 select ARM_AMBA
267 select ARM_VIC
Russell King71a06da2008-11-08 20:13:53 +0000268 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100269 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100270 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100271 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100272 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100273 help
274 This enables support for ARM Ltd Versatile board.
275
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100276config ARCH_AT91
277 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800278 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100279 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700280 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000281 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100282 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100283 This enables support for systems based on the Atmel AT91RM9200,
284 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100285
Russell Kingccf50e22010-03-15 19:03:06 +0000286config ARCH_BCMRING
287 bool "Broadcom BCMRING"
288 depends on MMU
289 select CPU_V6
290 select ARM_AMBA
291 select COMMON_CLKDEV
292 select GENERIC_TIME
293 select GENERIC_CLOCKEVENTS
294 select ARCH_WANT_OPTIONAL_GPIOLIB
295 help
296 Support for Broadcom's BCMRing platform.
297
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100299 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000300 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000301 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000302 help
303 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304
Russell King788c9702009-04-26 14:21:59 +0100305config ARCH_GEMINI
306 bool "Cortina Systems Gemini"
307 select CPU_FA526
308 select GENERIC_GPIO
309 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000310 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100311 help
312 Support for the Cortina Systems Gemini family SoCs
313
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314config ARCH_EBSA110
315 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000316 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100317 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000318 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000319 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 help
321 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000322 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 Ethernet interface, two PCMCIA sockets, two serial ports and a
324 parallel port.
325
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000326config ARCH_EP93XX
327 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000328 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000329 select ARM_AMBA
330 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100331 select GENERIC_GPIO
Russell Kingae696fd2008-11-30 17:11:49 +0000332 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700333 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100334 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000335 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000336 help
337 This enables support for the Cirrus EP93xx series of CPUs.
338
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339config ARCH_FOOTBRIDGE
340 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000341 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000343 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000344 help
345 Support for systems based on the DC21285 companion chip
346 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347
Russell King788c9702009-04-26 14:21:59 +0100348config ARCH_MXC
349 bool "Freescale MXC/iMX-based"
350 select GENERIC_TIME
351 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100352 select ARCH_REQUIRE_GPIOLIB
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100353 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100354 help
355 Support for Freescale MXC/iMX-based family of processors
356
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100357config ARCH_STMP3XXX
358 bool "Freescale STMP3xxx"
359 select CPU_ARM926T
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100360 select COMMON_CLKDEV
361 select ARCH_REQUIRE_GPIOLIB
362 select GENERIC_TIME
363 select GENERIC_CLOCKEVENTS
364 select GENERIC_GPIO
365 select USB_ARCH_HAS_EHCI
366 help
367 Support for systems based on the Freescale 3xxx CPUs.
368
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100369config ARCH_NETX
370 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000371 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100372 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100373 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100374 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000375 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100376 This enables support for systems based on the Hilscher NetX Soc
377
378config ARCH_H720X
379 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000380 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100381 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000382 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100383 help
384 This enables support for systems based on the Hynix HMS720x
385
Russell King3b938be2007-05-12 11:25:44 +0100386config ARCH_IOP13XX
387 bool "IOP13xx-based"
388 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000389 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100390 select PLAT_IOP
391 select PCI
392 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100393 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100394 help
395 Support for Intel's IOP13XX (XScale) family of processors.
396
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100397config ARCH_IOP32X
398 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100399 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000400 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100401 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100402 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100403 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100404 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000405 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100406 Support for Intel's 80219 and IOP32X (XScale) family of
407 processors.
408
409config ARCH_IOP33X
410 bool "IOP33x-based"
411 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000412 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100413 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100414 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100415 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100416 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100417 help
418 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419
Russell King3b938be2007-05-12 11:25:44 +0100420config ARCH_IXP23XX
421 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100422 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000423 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100424 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000425 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100426 help
Russell King3b938be2007-05-12 11:25:44 +0100427 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428
429config ARCH_IXP2000
430 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100431 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000432 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100433 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000434 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000435 help
436 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437
Russell King3b938be2007-05-12 11:25:44 +0100438config ARCH_IXP4XX
439 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100440 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000441 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100442 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100443 select GENERIC_TIME
444 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100445 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100446 help
Russell King3b938be2007-05-12 11:25:44 +0100447 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100448
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449config ARCH_L7200
450 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000451 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 select FIQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000453 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454 help
455 Say Y here if you intend to run this kernel on a LinkUp Systems
456 L7200 Software Development Board which uses an ARM720T processor.
457 Information on this board can be obtained at:
458
459 <http://www.linkupsys.com/>
460
461 If you have any questions or comments about the Linux kernel port
462 to this board, send e-mail to <sjhill@cotw.com>.
463
Saeed Bisharaedabd382009-08-06 15:12:43 +0300464config ARCH_DOVE
465 bool "Marvell Dove"
466 select PCI
467 select GENERIC_GPIO
468 select ARCH_REQUIRE_GPIOLIB
469 select GENERIC_TIME
470 select GENERIC_CLOCKEVENTS
471 select PLAT_ORION
472 help
473 Support for the Marvell Dove SoC 88AP510
474
Saeed Bishara651c74c2008-06-22 22:45:06 +0200475config ARCH_KIRKWOOD
476 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000477 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200478 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200479 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700480 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200481 select GENERIC_TIME
482 select GENERIC_CLOCKEVENTS
483 select PLAT_ORION
484 help
485 Support for the following Marvell Kirkwood series SoCs:
486 88F6180, 88F6192 and 88F6281.
487
Russell King788c9702009-04-26 14:21:59 +0100488config ARCH_LOKI
489 bool "Marvell Loki (88RC8480)"
490 select CPU_FEROCEON
491 select GENERIC_TIME
492 select GENERIC_CLOCKEVENTS
493 select PLAT_ORION
494 help
495 Support for the Marvell Loki (88RC8480) SoC.
496
497config ARCH_MV78XX0
498 bool "Marvell MV78xx0"
499 select CPU_FEROCEON
500 select PCI
501 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700502 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100503 select GENERIC_TIME
504 select GENERIC_CLOCKEVENTS
505 select PLAT_ORION
506 help
507 Support for the following Marvell MV78xx0 series SoCs:
508 MV781x0, MV782x0.
509
510config ARCH_ORION5X
511 bool "Marvell Orion"
512 depends on MMU
513 select CPU_FEROCEON
514 select PCI
515 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700516 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100517 select GENERIC_TIME
518 select GENERIC_CLOCKEVENTS
519 select PLAT_ORION
520 help
521 Support for the following Marvell Orion 5x series SoCs:
522 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
523 Orion-2 (5281), Orion-1-90 (6183).
524
525config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500526 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100527 depends on MMU
528 select GENERIC_GPIO
529 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100530 select COMMON_CLKDEV
531 select GENERIC_TIME
532 select GENERIC_CLOCKEVENTS
533 select TICK_ONESHOT
534 select PLAT_PXA
535 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500536 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100537
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100538config ARCH_KS8695
539 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000540 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100541 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000542 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000543 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100544 help
545 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
546 System-on-Chip devices.
547
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100548config ARCH_NS9XXX
549 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000550 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100551 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100552 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100553 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700554 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100555 help
556 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
557 System.
558
559 <http://www.digi.com/products/microprocessors/index.jsp>
560
Russell King788c9702009-04-26 14:21:59 +0100561config ARCH_W90X900
562 bool "Nuvoton W90X900 CPU"
563 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100564 select ARCH_REQUIRE_GPIOLIB
565 select GENERIC_GPIO
wanzongshun0e4a34b2009-06-10 15:50:44 +0100566 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100567 select GENERIC_TIME
568 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200569 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100570 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
571 At present, the w90x900 has been renamed nuc900, regarding
572 the ARM series product line, you can login the following
573 link address to know more.
574
575 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
576 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400577
wanzongshuna62e9032009-12-31 15:06:05 +0100578config ARCH_NUC93X
579 bool "Nuvoton NUC93X CPU"
580 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100581 select COMMON_CLKDEV
582 help
583 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
584 low-power and high performance MPEG-4/JPEG multimedia controller chip.
585
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100586config ARCH_PNX4008
587 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000588 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000589 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000590 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100591 help
592 This enables support for Philips PNX4008 mobile platform.
593
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700595 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100596 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500597 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100598 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800599 select GENERIC_GPIO
Russell King8c3abc72008-11-08 20:25:21 +0000600 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700601 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100602 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100603 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000604 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800605 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000606 help
eric miao2c8086a2007-09-11 19:13:17 -0700607 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608
Russell King788c9702009-04-26 14:21:59 +0100609config ARCH_MSM
610 bool "Qualcomm MSM"
611 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800612 select GENERIC_TIME
613 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800614 help
Russell King788c9702009-04-26 14:21:59 +0100615 Support for Qualcomm MSM7K based systems. This runs on the ARM11
616 apps processor of the MSM7K and depends on a shared memory
617 interface to the ARM9 modem processor which runs the baseband stack
618 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800619
Magnus Dammc793c1b2010-02-05 11:14:49 +0000620config ARCH_SHMOBILE
621 bool "Renesas SH-Mobile"
622 help
623 Support for Renesas's SH-Mobile ARM platforms
624
Linus Torvalds1da177e2005-04-16 15:20:36 -0700625config ARCH_RPC
626 bool "RiscPC"
627 select ARCH_ACORN
628 select FIQ
629 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100630 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100631 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000632 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000633 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100634 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000635 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636 help
637 On the Acorn Risc-PC, Linux can support the internal IDE disk and
638 CD-ROM interface, serial and parallel port, and the floppy drive.
639
640config ARCH_SA1100
641 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000642 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100643 select ISA
Russell King05944d72006-11-30 20:43:51 +0000644 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500645 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100646 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000647 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800648 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000649 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100650 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700651 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100652 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700653 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000654 help
655 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656
657config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100658 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800659 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100660 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700661 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000662 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663 help
664 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
665 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000666 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667
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 Dooksa08ab632008-10-21 14:06:39 +0100672 select GENERIC_GPIO
Ben Dooks89f0ce72010-01-26 15:49:15 +0900673 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100674 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900675 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000676 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100677 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900678 select ARCH_REQUIRE_GPIOLIB
679 select SAMSUNG_CLKSRC
680 select SAMSUNG_IRQ_VIC_TIMER
681 select SAMSUNG_IRQ_UART
682 select S3C_GPIO_TRACK
683 select S3C_GPIO_PULL_UPDOWN
684 select S3C_GPIO_CFG_S3C24XX
685 select S3C_GPIO_CFG_S3C64XX
686 select S3C_DEV_NAND
687 select USB_ARCH_HAS_OHCI
688 select SAMSUNG_GPIOLIB_4BIT
Ben Dooksa08ab632008-10-21 14:06:39 +0100689 help
690 Samsung S3C64XX series based systems
691
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900692config ARCH_S5P6440
693 bool "Samsung S5P6440"
694 select CPU_V6
695 select GENERIC_GPIO
696 select HAVE_CLK
697 help
698 Samsung S5P6440 CPU based systems
699
Kukjin Kim550db7f2010-01-29 10:19:26 +0900700config ARCH_S5P6442
701 bool "Samsung S5P6442"
702 select CPU_V6
703 select GENERIC_GPIO
704 select HAVE_CLK
705 help
706 Samsung S5P6442 CPU based systems
707
Byungho Min5a7652f2009-06-23 21:39:42 +0900708config ARCH_S5PC1XX
709 bool "Samsung S5PC1XX"
710 select GENERIC_GPIO
711 select HAVE_CLK
712 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100713 select ARM_L1_CACHE_SHIFT_6
Byungho Min5a7652f2009-06-23 21:39:42 +0900714 help
715 Samsung S5PC1XX series based systems
716
Kukjin Kim170f4e42010-02-24 16:40:44 +0900717config ARCH_S5PV210
718 bool "Samsung S5PV210/S5PC110"
719 select CPU_V7
720 select GENERIC_GPIO
721 select HAVE_CLK
722 select ARM_L1_CACHE_SHIFT_6
723 help
724 Samsung S5PV210/S5PC110 series based systems
725
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726config ARCH_SHARK
727 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000728 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100729 select ISA
730 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100731 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100732 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000733 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000734 help
735 Support for the StrongARM based Digital DNARD machine, also known
736 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737
738config ARCH_LH7A40X
739 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000740 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100741 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
742 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000743 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744 help
745 Say Y here for systems based on one of the Sharp LH7A40X
746 System on a Chip processors. These CPUs include an ARM922T
747 core with a wide array of integrated devices for
748 hand-held and low-power applications.
749
Linus Walleijd98aac72009-04-27 10:21:46 +0100750config ARCH_U300
751 bool "ST-Ericsson U300 Series"
752 depends on MMU
753 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100754 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100755 select ARM_AMBA
756 select ARM_VIC
757 select GENERIC_TIME
758 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100759 select COMMON_CLKDEV
760 select GENERIC_GPIO
761 help
762 Support for ST-Ericsson U300 series mobile platforms.
763
Russell Kingccf50e22010-03-15 19:03:06 +0000764config ARCH_U8500
765 bool "ST-Ericsson U8500 Series"
766 select CPU_V7
767 select ARM_AMBA
768 select GENERIC_TIME
769 select GENERIC_CLOCKEVENTS
770 select COMMON_CLKDEV
771 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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700814endchoice
815
Russell Kingccf50e22010-03-15 19:03:06 +0000816#
817# This is sorted alphabetically by mach-* pathname. However, plat-*
818# Kconfigs may be included either alphabetically (according to the
819# plat- suffix) or along side the corresponding mach-* source.
820#
Russell King95b8f202010-01-14 11:43:54 +0000821source "arch/arm/mach-aaec2000/Kconfig"
822
823source "arch/arm/mach-at91/Kconfig"
824
825source "arch/arm/mach-bcmring/Kconfig"
826
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827source "arch/arm/mach-clps711x/Kconfig"
828
Russell King95b8f202010-01-14 11:43:54 +0000829source "arch/arm/mach-davinci/Kconfig"
830
831source "arch/arm/mach-dove/Kconfig"
832
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000833source "arch/arm/mach-ep93xx/Kconfig"
834
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835source "arch/arm/mach-footbridge/Kconfig"
836
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200837source "arch/arm/mach-gemini/Kconfig"
838
Russell King95b8f202010-01-14 11:43:54 +0000839source "arch/arm/mach-h720x/Kconfig"
840
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841source "arch/arm/mach-integrator/Kconfig"
842
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100843source "arch/arm/mach-iop32x/Kconfig"
844
845source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846
Dan Williams285f5fa2006-12-07 02:59:39 +0100847source "arch/arm/mach-iop13xx/Kconfig"
848
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849source "arch/arm/mach-ixp4xx/Kconfig"
850
851source "arch/arm/mach-ixp2000/Kconfig"
852
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100853source "arch/arm/mach-ixp23xx/Kconfig"
854
Russell King95b8f202010-01-14 11:43:54 +0000855source "arch/arm/mach-kirkwood/Kconfig"
856
857source "arch/arm/mach-ks8695/Kconfig"
858
859source "arch/arm/mach-lh7a40x/Kconfig"
860
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200861source "arch/arm/mach-loki/Kconfig"
862
Russell King95b8f202010-01-14 11:43:54 +0000863source "arch/arm/mach-msm/Kconfig"
864
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200865source "arch/arm/mach-mv78xx0/Kconfig"
866
Russell King95b8f202010-01-14 11:43:54 +0000867source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868
Russell King95b8f202010-01-14 11:43:54 +0000869source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800870
Russell King95b8f202010-01-14 11:43:54 +0000871source "arch/arm/mach-nomadik/Kconfig"
872source "arch/arm/plat-nomadik/Kconfig"
873
874source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875
Russell Kingd91a89102010-02-04 18:13:17 +0000876source "arch/arm/mach-nuc93x/Kconfig"
877
Tony Lindgrend48af152005-07-10 19:58:17 +0100878source "arch/arm/plat-omap/Kconfig"
879
880source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881
Tony Lindgren1dbae812005-11-10 14:26:51 +0000882source "arch/arm/mach-omap2/Kconfig"
883
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400884source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400885
Russell King95b8f202010-01-14 11:43:54 +0000886source "arch/arm/mach-pxa/Kconfig"
887source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888
Russell King95b8f202010-01-14 11:43:54 +0000889source "arch/arm/mach-mmp/Kconfig"
890
891source "arch/arm/mach-realview/Kconfig"
892
893source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300894
Ben Dookscf383672009-11-10 00:14:58 +0000895source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100896source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900897source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900898source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100899
900if ARCH_S3C2410
901source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100903source "arch/arm/mach-s3c2412/Kconfig"
904source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100905source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100906endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700907
Ben Dooksa08ab632008-10-21 14:06:39 +0100908if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900909source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100910endif
911
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900912source "arch/arm/mach-s5p6440/Kconfig"
913
Kukjin Kim550db7f2010-01-29 10:19:26 +0900914source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100915
Byungho Min5a7652f2009-06-23 21:39:42 +0900916if ARCH_S5PC1XX
917source "arch/arm/mach-s5pc100/Kconfig"
918endif
919
Kukjin Kim170f4e42010-02-24 16:40:44 +0900920source "arch/arm/mach-s5pv210/Kconfig"
921
Russell King882d01f2010-03-02 23:40:15 +0000922source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923
Russell King882d01f2010-03-02 23:40:15 +0000924source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800925
Russell King95b8f202010-01-14 11:43:54 +0000926source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100927
Russell King95b8f202010-01-14 11:43:54 +0000928source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929
930source "arch/arm/mach-versatile/Kconfig"
931
wanzongshun7ec80dd2008-12-03 03:55:38 +0100932source "arch/arm/mach-w90x900/Kconfig"
933
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934# Definitions to make life easier
935config ARCH_ACORN
936 bool
937
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100938config PLAT_IOP
939 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700940 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700941 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100942
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400943config PLAT_ORION
944 bool
945
Eric Miaobd5ce432009-01-20 12:06:01 +0800946config PLAT_PXA
947 bool
948
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949source arch/arm/mm/Kconfig
950
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100951config IWMMXT
952 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800953 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
954 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100955 help
956 Enable support for iWMMXt context switching at run time if
957 running on a CPU that supports it.
958
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
960config XSCALE_PMU
961 bool
962 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
963 default y
964
Jamie Iles0f4f0672010-02-02 20:23:15 +0100965config CPU_HAS_PMU
966 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
967 default y
968 bool
969
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100970if !MMU
971source "arch/arm/Kconfig-nommu"
972endif
973
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100974config ARM_ERRATA_411920
975 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
976 depends on CPU_V6 && !SMP
977 help
978 Invalidation of the Instruction Cache operation can
979 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
980 It does not affect the MPCore. This option enables the ARM Ltd.
981 recommended workaround.
982
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100983config ARM_ERRATA_430973
984 bool "ARM errata: Stale prediction on replaced interworking branch"
985 depends on CPU_V7
986 help
987 This option enables the workaround for the 430973 Cortex-A8
988 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
989 interworking branch is replaced with another code sequence at the
990 same virtual address, whether due to self-modifying code or virtual
991 to physical address re-mapping, Cortex-A8 does not recover from the
992 stale interworking branch prediction. This results in Cortex-A8
993 executing the new code sequence in the incorrect ARM or Thumb state.
994 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
995 and also flushes the branch target cache at every context switch.
996 Note that setting specific bits in the ACTLR register may not be
997 available in non-secure mode.
998
Catalin Marinas855c5512009-04-30 17:06:15 +0100999config ARM_ERRATA_458693
1000 bool "ARM errata: Processor deadlock when a false hazard is created"
1001 depends on CPU_V7
1002 help
1003 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1004 erratum. For very specific sequences of memory operations, it is
1005 possible for a hazard condition intended for a cache line to instead
1006 be incorrectly associated with a different cache line. This false
1007 hazard might then cause a processor deadlock. The workaround enables
1008 the L1 caching of the NEON accesses and disables the PLD instruction
1009 in the ACTLR register. Note that setting specific bits in the ACTLR
1010 register may not be available in non-secure mode.
1011
Catalin Marinas0516e462009-04-30 17:06:20 +01001012config ARM_ERRATA_460075
1013 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1014 depends on CPU_V7
1015 help
1016 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1017 erratum. Any asynchronous access to the L2 cache may encounter a
1018 situation in which recent store transactions to the L2 cache are lost
1019 and overwritten with stale memory contents from external memory. The
1020 workaround disables the write-allocate mode for the L2 cache via the
1021 ACTLR register. Note that setting specific bits in the ACTLR register
1022 may not be available in non-secure mode.
1023
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001024config PL310_ERRATA_588369
1025 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1026 depends on CACHE_L2X0 && ARCH_OMAP4
1027 help
1028 The PL310 L2 cache controller implements three types of Clean &
1029 Invalidate maintenance operations: by Physical Address
1030 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1031 They are architecturally defined to behave as the execution of a
1032 clean operation followed immediately by an invalidate operation,
1033 both performing to the same memory location. This functionality
1034 is not correctly implemented in PL310 as clean lines are not
1035 invalidated as a result of these operations. Note that this errata
1036 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037endmenu
1038
1039source "arch/arm/common/Kconfig"
1040
1041config FORCE_MAX_ZONEORDER
1042 int
1043 depends on SA1111
1044 default "9"
1045
1046menu "Bus support"
1047
1048config ARM_AMBA
1049 bool
1050
1051config ISA
1052 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053 help
1054 Find out whether you have ISA slots on your motherboard. ISA is the
1055 name of a bus system, i.e. the way the CPU talks to the other stuff
1056 inside your box. Other bus systems are PCI, EISA, MicroChannel
1057 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1058 newer boards don't support it. If you have ISA, say Y, otherwise N.
1059
Russell King065909b2006-01-04 15:44:16 +00001060# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061config ISA_DMA
1062 bool
Russell King065909b2006-01-04 15:44:16 +00001063 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064
Russell King065909b2006-01-04 15:44:16 +00001065# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001066config ISA_DMA_API
1067 bool
Al Viro5cae8412005-05-04 05:39:22 +01001068
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +01001070 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071 help
1072 Find out whether you have a PCI motherboard. PCI is the name of a
1073 bus system, i.e. the way the CPU talks to the other stuff inside
1074 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1075 VESA. If you have PCI, say Y, otherwise N.
1076
Anton Vorontsov52882172010-04-19 13:20:49 +01001077config PCI_DOMAINS
1078 bool
1079 depends on PCI
1080
Matthew Wilcox36e23592007-07-10 10:54:40 -06001081config PCI_SYSCALL
1082 def_bool PCI
1083
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084# Select the host bridge type
1085config PCI_HOST_VIA82C505
1086 bool
1087 depends on PCI && ARCH_SHARK
1088 default y
1089
Mike Rapoporta0113a92007-11-25 08:55:34 +01001090config PCI_HOST_ITE8152
1091 bool
1092 depends on PCI && MACH_ARMCORE
1093 default y
1094 select DMABOUNCE
1095
Linus Torvalds1da177e2005-04-16 15:20:36 -07001096source "drivers/pci/Kconfig"
1097
1098source "drivers/pcmcia/Kconfig"
1099
1100endmenu
1101
1102menu "Kernel Features"
1103
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001104source "kernel/time/Kconfig"
1105
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106config SMP
1107 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001108 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001109 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001110 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001111 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001112 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001113 help
1114 This enables support for systems with more than one CPU. If you have
1115 a system with only one CPU, like most personal computers, say N. If
1116 you have a system with more than one CPU, say Y.
1117
1118 If you say N here, the kernel will run on single and multiprocessor
1119 machines, but will use only one CPU of a multiprocessor machine. If
1120 you say Y here, the kernel will run on many, but not all, single
1121 processor machines. On a single processor machine, the kernel will
1122 run faster if you say N here.
1123
Adrian Bunk03502fa2008-02-03 15:50:21 +02001124 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001125 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1126 <http://www.linuxdoc.org/docs.html#howto>.
1127
1128 If you don't know what to do here, say N.
1129
Russell Kinga8cbcd92009-05-16 11:51:14 +01001130config HAVE_ARM_SCU
1131 bool
1132 depends on SMP
1133 help
1134 This option enables support for the ARM system coherency unit
1135
Russell Kingf32f4ce2009-05-16 12:14:21 +01001136config HAVE_ARM_TWD
1137 bool
1138 depends on SMP
1139 help
1140 This options enables support for the ARM timer and watchdog unit
1141
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001142choice
1143 prompt "Memory split"
1144 default VMSPLIT_3G
1145 help
1146 Select the desired split between kernel and user memory.
1147
1148 If you are not absolutely sure what you are doing, leave this
1149 option alone!
1150
1151 config VMSPLIT_3G
1152 bool "3G/1G user/kernel split"
1153 config VMSPLIT_2G
1154 bool "2G/2G user/kernel split"
1155 config VMSPLIT_1G
1156 bool "1G/3G user/kernel split"
1157endchoice
1158
1159config PAGE_OFFSET
1160 hex
1161 default 0x40000000 if VMSPLIT_1G
1162 default 0x80000000 if VMSPLIT_2G
1163 default 0xC0000000
1164
Linus Torvalds1da177e2005-04-16 15:20:36 -07001165config NR_CPUS
1166 int "Maximum number of CPUs (2-32)"
1167 range 2 32
1168 depends on SMP
1169 default "4"
1170
Russell Kinga054a812005-11-02 22:24:33 +00001171config HOTPLUG_CPU
1172 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1173 depends on SMP && HOTPLUG && EXPERIMENTAL
1174 help
1175 Say Y here to experiment with turning CPUs off and on. CPUs
1176 can be controlled through /sys/devices/system/cpu.
1177
Russell King37ee16a2005-11-08 19:08:05 +00001178config LOCAL_TIMERS
1179 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001180 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001181 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001182 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001183 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001184 help
1185 Enable support for local timers on SMP platforms, rather then the
1186 legacy IPI broadcast method. Local timers allows the system
1187 accounting to be spread across the timer interval, preventing a
1188 "thundering herd" at every timer tick.
1189
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001190source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191
Russell Kingf8065812006-03-02 22:41:59 +00001192config HZ
1193 int
1194 default 128 if ARCH_L7200
Kukjin Kim170f4e42010-02-24 16:40:44 +09001195 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001196 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001197 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001198 default 100
1199
Catalin Marinas16c79652009-07-24 12:33:02 +01001200config THUMB2_KERNEL
1201 bool "Compile the kernel in Thumb-2 mode"
1202 depends on CPU_V7 && EXPERIMENTAL
1203 select AEABI
1204 select ARM_ASM_UNIFIED
1205 help
1206 By enabling this option, the kernel will be compiled in
1207 Thumb-2 mode. A compiler/assembler that understand the unified
1208 ARM-Thumb syntax is needed.
1209
1210 If unsure, say N.
1211
Catalin Marinas0becb082009-07-24 12:32:53 +01001212config ARM_ASM_UNIFIED
1213 bool
1214
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001215config AEABI
1216 bool "Use the ARM EABI to compile the kernel"
1217 help
1218 This option allows for the kernel to be compiled using the latest
1219 ARM ABI (aka EABI). This is only useful if you are using a user
1220 space environment that is also compiled with EABI.
1221
1222 Since there are major incompatibilities between the legacy ABI and
1223 EABI, especially with regard to structure member alignment, this
1224 option also changes the kernel syscall calling convention to
1225 disambiguate both ABIs and allow for backward compatibility support
1226 (selected with CONFIG_OABI_COMPAT).
1227
1228 To use this you need GCC version 4.0.0 or later.
1229
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001230config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001231 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001232 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001233 default y
1234 help
1235 This option preserves the old syscall interface along with the
1236 new (ARM EABI) one. It also provides a compatibility layer to
1237 intercept syscalls that have structure arguments which layout
1238 in memory differs between the legacy ABI and the new ARM EABI
1239 (only for non "thumb" binaries). This option adds a tiny
1240 overhead to all syscalls and produces a slightly larger kernel.
1241 If you know you'll be using only pure EABI user space then you
1242 can say N here. If this option is not selected and you attempt
1243 to execute a legacy ABI binary then the result will be
1244 UNPREDICTABLE (in fact it can be predicted that it won't work
1245 at all). If in doubt say Y.
1246
Mel Gormaneb335752009-05-13 17:34:48 +01001247config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001248 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001249
Russell King07a2f732008-10-01 21:39:58 +01001250# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001251config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253
Russell King05944d72006-11-30 20:43:51 +00001254config ARCH_SPARSEMEM_ENABLE
1255 bool
1256
Russell King07a2f732008-10-01 21:39:58 +01001257config ARCH_SPARSEMEM_DEFAULT
1258 def_bool ARCH_SPARSEMEM_ENABLE
1259
Russell King05944d72006-11-30 20:43:51 +00001260config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001261 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001262
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001263config NODES_SHIFT
1264 int
1265 default "4" if ARCH_LH7A40X
1266 default "2"
1267 depends on NEED_MULTIPLE_NODES
1268
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001269config HIGHMEM
1270 bool "High Memory Support (EXPERIMENTAL)"
1271 depends on MMU && EXPERIMENTAL
1272 help
1273 The address space of ARM processors is only 4 Gigabytes large
1274 and it has to accommodate user address space, kernel address
1275 space as well as some memory mapped IO. That means that, if you
1276 have a large amount of physical memory and/or IO, not all of the
1277 memory can be "permanently mapped" by the kernel. The physical
1278 memory that is not permanently mapped is called "high memory".
1279
1280 Depending on the selected kernel/user memory split, minimum
1281 vmalloc space and actual amount of RAM, you may not need this
1282 option which should result in a slightly faster kernel.
1283
1284 If unsure, say n.
1285
Russell King65cec8e2009-08-17 20:02:06 +01001286config HIGHPTE
1287 bool "Allocate 2nd-level pagetables from highmem"
1288 depends on HIGHMEM
1289 depends on !OUTER_CACHE
1290
Jamie Iles1b8873a2010-02-02 20:25:44 +01001291config HW_PERF_EVENTS
1292 bool "Enable hardware performance counter support for perf events"
Jean PIHET796d1292010-01-26 18:51:05 +01001293 depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
Jamie Iles1b8873a2010-02-02 20:25:44 +01001294 default y
1295 help
1296 Enable hardware performance counter support for perf events. If
1297 disabled, perf events will use software events only.
1298
Dave Hansen3f22ab22005-06-23 00:07:43 -07001299source "mm/Kconfig"
1300
Linus Torvalds1da177e2005-04-16 15:20:36 -07001301config LEDS
1302 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001303 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001304 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001305 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1306 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001307 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001308 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001309 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310 help
1311 If you say Y here, the LEDs on your machine will be used
1312 to provide useful information about your current system status.
1313
1314 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1315 be able to select which LEDs are active using the options below. If
1316 you are compiling a kernel for the EBSA-110 or the LART however, the
1317 red LED will simply flash regularly to indicate that the system is
1318 still functional. It is safe to say Y here if you have a CATS
1319 system, but the driver will do nothing.
1320
1321config LEDS_TIMER
1322 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001323 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1324 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001326 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327 default y if ARCH_EBSA110
1328 help
1329 If you say Y here, one of the system LEDs (the green one on the
1330 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1331 will flash regularly to indicate that the system is still
1332 operational. This is mainly useful to kernel hackers who are
1333 debugging unstable kernels.
1334
1335 The LART uses the same LED for both Timer LED and CPU usage LED
1336 functions. You may choose to use both, but the Timer LED function
1337 will overrule the CPU usage LED.
1338
1339config LEDS_CPU
1340 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001341 !ARCH_OMAP) \
1342 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1343 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344 depends on LEDS
1345 help
1346 If you say Y here, the red LED will be used to give a good real
1347 time indication of CPU usage, by lighting whenever the idle task
1348 is not currently executing.
1349
1350 The LART uses the same LED for both Timer LED and CPU usage LED
1351 functions. You may choose to use both, but the Timer LED function
1352 will overrule the CPU usage LED.
1353
1354config ALIGNMENT_TRAP
1355 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001356 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001358 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001359 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001360 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1362 address divisible by 4. On 32-bit ARM processors, these non-aligned
1363 fetch/store instructions will be emulated in software if you say
1364 here, which has a severe performance impact. This is necessary for
1365 correct operation of some network protocols. With an IP-only
1366 configuration it is safe to say N, otherwise say Y.
1367
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001368config UACCESS_WITH_MEMCPY
1369 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1370 depends on MMU && EXPERIMENTAL
1371 default y if CPU_FEROCEON
1372 help
1373 Implement faster copy_to_user and clear_user methods for CPU
1374 cores where a 8-word STM instruction give significantly higher
1375 memory write throughput than a sequence of individual 32bit stores.
1376
1377 A possible side effect is a slight increase in scheduling latency
1378 between threads sharing the same address space if they invoke
1379 such copy operations with large buffers.
1380
1381 However, if the CPU data cache is using a write-allocate mode,
1382 this option is unlikely to provide any performance gain.
1383
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384endmenu
1385
1386menu "Boot options"
1387
1388# Compressed boot loader in ROM. Yes, we really want to ask about
1389# TEXT and BSS so we preserve their values in the config files.
1390config ZBOOT_ROM_TEXT
1391 hex "Compressed ROM boot loader base address"
1392 default "0"
1393 help
1394 The physical address at which the ROM-able zImage is to be
1395 placed in the target. Platforms which normally make use of
1396 ROM-able zImage formats normally set this to a suitable
1397 value in their defconfig file.
1398
1399 If ZBOOT_ROM is not enabled, this has no effect.
1400
1401config ZBOOT_ROM_BSS
1402 hex "Compressed ROM boot loader BSS address"
1403 default "0"
1404 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001405 The base address of an area of read/write memory in the target
1406 for the ROM-able zImage which must be available while the
1407 decompressor is running. It must be large enough to hold the
1408 entire decompressed kernel plus an additional 128 KiB.
1409 Platforms which normally make use of ROM-able zImage formats
1410 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411
1412 If ZBOOT_ROM is not enabled, this has no effect.
1413
1414config ZBOOT_ROM
1415 bool "Compressed boot loader in ROM/flash"
1416 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1417 help
1418 Say Y here if you intend to execute your compressed kernel image
1419 (zImage) directly from ROM or flash. If unsure, say N.
1420
1421config CMDLINE
1422 string "Default kernel command string"
1423 default ""
1424 help
1425 On some architectures (EBSA110 and CATS), there is currently no way
1426 for the boot loader to pass arguments to the kernel. For these
1427 architectures, you should supply some command-line options at build
1428 time by entering them here. As a minimum, you should specify the
1429 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1430
1431config XIP_KERNEL
1432 bool "Kernel Execute-In-Place from ROM"
1433 depends on !ZBOOT_ROM
1434 help
1435 Execute-In-Place allows the kernel to run from non-volatile storage
1436 directly addressable by the CPU, such as NOR flash. This saves RAM
1437 space since the text section of the kernel is not loaded from flash
1438 to RAM. Read-write sections, such as the data section and stack,
1439 are still copied to RAM. The XIP kernel is not compressed since
1440 it has to run directly from flash, so it will take more space to
1441 store it. The flash address used to link the kernel object files,
1442 and for storing it, is configuration dependent. Therefore, if you
1443 say Y here, you must know the proper physical address where to
1444 store the kernel image depending on your own flash memory usage.
1445
1446 Also note that the make target becomes "make xipImage" rather than
1447 "make zImage" or "make Image". The final kernel binary to put in
1448 ROM memory will be arch/arm/boot/xipImage.
1449
1450 If unsure, say N.
1451
1452config XIP_PHYS_ADDR
1453 hex "XIP Kernel Physical Location"
1454 depends on XIP_KERNEL
1455 default "0x00080000"
1456 help
1457 This is the physical address in your flash memory the kernel will
1458 be linked for and stored to. This address is dependent on your
1459 own flash usage.
1460
Richard Purdiec587e4a2007-02-06 21:29:00 +01001461config KEXEC
1462 bool "Kexec system call (EXPERIMENTAL)"
1463 depends on EXPERIMENTAL
1464 help
1465 kexec is a system call that implements the ability to shutdown your
1466 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001467 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001468 you can start any kernel with it, not just Linux.
1469
1470 It is an ongoing process to be certain the hardware in a machine
1471 is properly shutdown, so do not be surprised if this code does not
1472 initially work for you. It may help to enable device hotplugging
1473 support.
1474
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001475config ATAGS_PROC
1476 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001477 depends on KEXEC
1478 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001479 help
1480 Should the atags used to boot the kernel be exported in an "atags"
1481 file in procfs. Useful with kexec.
1482
Linus Torvalds1da177e2005-04-16 15:20:36 -07001483endmenu
1484
Russell Kingac9d7ef2008-08-18 17:26:00 +01001485menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486
Ben Dooks89c52ed2009-07-30 23:23:24 +01001487if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001488
1489source "drivers/cpufreq/Kconfig"
1490
1491config CPU_FREQ_SA1100
1492 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001493
1494config CPU_FREQ_SA1110
1495 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001496
1497config CPU_FREQ_INTEGRATOR
1498 tristate "CPUfreq driver for ARM Integrator CPUs"
1499 depends on ARCH_INTEGRATOR && CPU_FREQ
1500 default y
1501 help
1502 This enables the CPUfreq driver for ARM Integrator CPUs.
1503
1504 For details, take a look at <file:Documentation/cpu-freq>.
1505
1506 If in doubt, say Y.
1507
Russell King9e2697f2007-12-14 13:30:14 +00001508config CPU_FREQ_PXA
1509 bool
1510 depends on CPU_FREQ && ARCH_PXA && PXA25x
1511 default y
1512 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1513
Mark Brownb3748dd2009-06-15 11:23:20 +01001514config CPU_FREQ_S3C64XX
1515 bool "CPUfreq support for Samsung S3C64XX CPUs"
1516 depends on CPU_FREQ && CPU_S3C6410
1517
Ben Dooks9d56c022009-07-30 23:23:25 +01001518config CPU_FREQ_S3C
1519 bool
1520 help
1521 Internal configuration node for common cpufreq on Samsung SoC
1522
1523config CPU_FREQ_S3C24XX
1524 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1525 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1526 select CPU_FREQ_S3C
1527 help
1528 This enables the CPUfreq driver for the Samsung S3C24XX family
1529 of CPUs.
1530
1531 For details, take a look at <file:Documentation/cpu-freq>.
1532
1533 If in doubt, say N.
1534
1535config CPU_FREQ_S3C24XX_PLL
1536 bool "Support CPUfreq changing of PLL frequency"
1537 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1538 help
1539 Compile in support for changing the PLL frequency from the
1540 S3C24XX series CPUfreq driver. The PLL takes time to settle
1541 after a frequency change, so by default it is not enabled.
1542
1543 This also means that the PLL tables for the selected CPU(s) will
1544 be built which may increase the size of the kernel image.
1545
1546config CPU_FREQ_S3C24XX_DEBUG
1547 bool "Debug CPUfreq Samsung driver core"
1548 depends on CPU_FREQ_S3C24XX
1549 help
1550 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1551
1552config CPU_FREQ_S3C24XX_IODEBUG
1553 bool "Debug CPUfreq Samsung driver IO timing"
1554 depends on CPU_FREQ_S3C24XX
1555 help
1556 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1557
Ben Dookse6d197a2009-07-30 23:23:42 +01001558config CPU_FREQ_S3C24XX_DEBUGFS
1559 bool "Export debugfs for CPUFreq"
1560 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1561 help
1562 Export status information via debugfs.
1563
Linus Torvalds1da177e2005-04-16 15:20:36 -07001564endif
1565
Russell Kingac9d7ef2008-08-18 17:26:00 +01001566source "drivers/cpuidle/Kconfig"
1567
1568endmenu
1569
Linus Torvalds1da177e2005-04-16 15:20:36 -07001570menu "Floating point emulation"
1571
1572comment "At least one emulation must be selected"
1573
1574config FPE_NWFPE
1575 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001576 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001577 ---help---
1578 Say Y to include the NWFPE floating point emulator in the kernel.
1579 This is necessary to run most binaries. Linux does not currently
1580 support floating point hardware so you need to say Y here even if
1581 your machine has an FPA or floating point co-processor podule.
1582
1583 You may say N here if you are going to load the Acorn FPEmulator
1584 early in the bootup.
1585
1586config FPE_NWFPE_XP
1587 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001588 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001589 help
1590 Say Y to include 80-bit support in the kernel floating-point
1591 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1592 Note that gcc does not generate 80-bit operations by default,
1593 so in most cases this option only enlarges the size of the
1594 floating point emulator without any good reason.
1595
1596 You almost surely want to say N here.
1597
1598config FPE_FASTFPE
1599 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001600 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001601 ---help---
1602 Say Y here to include the FAST floating point emulator in the kernel.
1603 This is an experimental much faster emulator which now also has full
1604 precision for the mantissa. It does not support any exceptions.
1605 It is very simple, and approximately 3-6 times faster than NWFPE.
1606
1607 It should be sufficient for most programs. It may be not suitable
1608 for scientific calculations, but you have to check this for yourself.
1609 If you do not feel you need a faster FP emulation you should better
1610 choose NWFPE.
1611
1612config VFP
1613 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001614 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001615 help
1616 Say Y to include VFP support code in the kernel. This is needed
1617 if your hardware includes a VFP unit.
1618
1619 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1620 release notes and additional status information.
1621
1622 Say N if your target does not have VFP hardware.
1623
Catalin Marinas25ebee02007-09-25 15:22:24 +01001624config VFPv3
1625 bool
1626 depends on VFP
1627 default y if CPU_V7
1628
Catalin Marinasb5872db2008-01-10 19:16:17 +01001629config NEON
1630 bool "Advanced SIMD (NEON) Extension support"
1631 depends on VFPv3 && CPU_V7
1632 help
1633 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1634 Extension.
1635
Linus Torvalds1da177e2005-04-16 15:20:36 -07001636endmenu
1637
1638menu "Userspace binary formats"
1639
1640source "fs/Kconfig.binfmt"
1641
1642config ARTHUR
1643 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001644 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001645 help
1646 Say Y here to include the kernel code necessary if you want to run
1647 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1648 experimental; if this sounds frightening, say N and sleep in peace.
1649 You can also say M here to compile this support as a module (which
1650 will be called arthur).
1651
1652endmenu
1653
1654menu "Power management options"
1655
Russell Kingeceab4a2005-11-15 11:31:41 +00001656source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001657
Johannes Bergf4cb5702007-12-08 02:14:00 +01001658config ARCH_SUSPEND_POSSIBLE
1659 def_bool y
1660
Linus Torvalds1da177e2005-04-16 15:20:36 -07001661endmenu
1662
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001663source "net/Kconfig"
1664
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001665source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001666
1667source "fs/Kconfig"
1668
Linus Torvalds1da177e2005-04-16 15:20:36 -07001669source "arch/arm/Kconfig.debug"
1670
1671source "security/Kconfig"
1672
1673source "crypto/Kconfig"
1674
1675source "lib/Kconfig"