blob: fd4882e61dd51772f8b2e69191f2c911a5dc080a [file] [log] [blame]
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
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050015 select HAVE_OPROFILE
Jason Wessel5cbad0e2008-02-20 13:33:40 -060016 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050017 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080018 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040019 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040020 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080021 select HAVE_KERNEL_GZIP
22 select HAVE_KERNEL_LZO
Linus Torvalds1da177e2005-04-16 15:20:36 -070023 help
24 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000025 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000027 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070028 Europe. There is an ARM Linux project with a web page at
29 <http://www.arm.linux.org.uk/>.
30
Russell King1a189b92008-04-13 21:41:55 +010031config HAVE_PWM
32 bool
33
Ralf Baechle75e71532007-02-09 17:08:58 +000034config SYS_SUPPORTS_APM_EMULATION
35 bool
36
David Brownell0a938b92007-03-05 00:30:18 -080037config GENERIC_GPIO
38 bool
David Brownell0a938b92007-03-05 00:30:18 -080039
Kevin Hilman746140c2006-09-22 00:16:30 +010040config GENERIC_TIME
41 bool
Kevin Hilman746140c2006-09-22 00:16:30 +010042
Kevin Hilman0567a0c2007-03-13 20:29:24 +010043config GENERIC_CLOCKEVENTS
44 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010045
Catalin Marinasa8655e82008-02-04 17:30:57 +010046config GENERIC_CLOCKEVENTS_BROADCAST
47 bool
48 depends on GENERIC_CLOCKEVENTS
49 default y if SMP && !LOCAL_TIMERS
50
Linus Walleijbc581772009-09-15 17:30:37 +010051config HAVE_TCM
52 bool
53 select GENERIC_ALLOCATOR
54
Al Viro5ea81762007-02-11 15:41:31 +000055config NO_IOPORT
56 bool
Al Viro5ea81762007-02-11 15:41:31 +000057
Linus Torvalds1da177e2005-04-16 15:20:36 -070058config EISA
59 bool
60 ---help---
61 The Extended Industry Standard Architecture (EISA) bus was
62 developed as an open alternative to the IBM MicroChannel bus.
63
64 The EISA bus provided some of the features of the IBM MicroChannel
65 bus while maintaining backward compatibility with cards made for
66 the older ISA bus. The EISA bus saw limited use between 1988 and
67 1995 when it was made obsolete by the PCI bus.
68
69 Say Y here if you are building a kernel for an EISA-based machine.
70
71 Otherwise, say N.
72
73config SBUS
74 bool
75
76config MCA
77 bool
78 help
79 MicroChannel Architecture is found in some IBM PS/2 machines and
80 laptops. It is a bus system similar to PCI or ISA. See
81 <file:Documentation/mca.txt> (and especially the web page given
82 there) before attempting to build an MCA bus kernel.
83
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010084config GENERIC_HARDIRQS
85 bool
86 default y
87
Russell Kingf16fb1e2007-04-28 09:59:37 +010088config STACKTRACE_SUPPORT
89 bool
90 default y
91
Nicolas Pitref76e9152008-04-24 01:31:46 -040092config HAVE_LATENCYTOP_SUPPORT
93 bool
94 depends on !SMP
95 default y
96
Russell Kingf16fb1e2007-04-28 09:59:37 +010097config LOCKDEP_SUPPORT
98 bool
99 default y
100
Russell King7ad1bcb2006-08-27 12:07:02 +0100101config TRACE_IRQFLAGS_SUPPORT
102 bool
103 default y
104
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100105config HARDIRQS_SW_RESEND
106 bool
107 default y
108
109config GENERIC_IRQ_PROBE
110 bool
111 default y
112
Nick Piggin95c354f2008-01-30 13:31:20 +0100113config GENERIC_LOCKBREAK
114 bool
115 default y
116 depends on SMP && PREEMPT
117
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118config RWSEM_GENERIC_SPINLOCK
119 bool
120 default y
121
122config RWSEM_XCHGADD_ALGORITHM
123 bool
124
David Howellsf0d1b0b2006-12-08 02:37:49 -0800125config ARCH_HAS_ILOG2_U32
126 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800127
128config ARCH_HAS_ILOG2_U64
129 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800130
Ben Dooks89c52ed2009-07-30 23:23:24 +0100131config ARCH_HAS_CPUFREQ
132 bool
133 help
134 Internal node to signify that the ARCH has CPUFREQ support
135 and that the relevant menu configurations are displayed for
136 it.
137
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800138config GENERIC_HWEIGHT
139 bool
140 default y
141
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142config GENERIC_CALIBRATE_DELAY
143 bool
144 default y
145
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100146config ARCH_MAY_HAVE_PC_FDC
147 bool
148
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800149config ZONE_DMA
150 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800151
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152config GENERIC_ISA_DMA
153 bool
154
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155config FIQ
156 bool
157
Al Viro034d2f52005-12-19 16:27:59 -0500158config ARCH_MTD_XIP
159 bool
160
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100161config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100162 def_bool y
163
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500164if OPROFILE
165
166config OPROFILE_ARMV6
167 def_bool y
168 depends on CPU_V6 && !SMP
169 select OPROFILE_ARM11_CORE
170
171config OPROFILE_MPCORE
172 def_bool y
173 depends on CPU_V6 && SMP
174 select OPROFILE_ARM11_CORE
175
176config OPROFILE_ARM11_CORE
177 bool
178
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100179config OPROFILE_ARMV7
180 def_bool y
181 depends on CPU_V7 && !SMP
182 bool
183
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500184endif
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194source "init/Kconfig"
195
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700196source "kernel/Kconfig.freezer"
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198menu "System Type"
199
Hyok S. Choi3c427972009-07-24 12:35:00 +0100200config MMU
201 bool "MMU-based Paged Memory Management Support"
202 default y
203 help
204 Select if you want MMU-based virtualised addressing space
205 support by paged memory management. If unsure, say 'Y'.
206
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207choice
208 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000209 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100211config ARCH_AAEC2000
212 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000213 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100214 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700215 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100216 help
217 This enables support for systems based on the Agilent AAEC-2000
218
219config ARCH_INTEGRATOR
220 bool "ARM Ltd. Integrator family"
221 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100222 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700223 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000224 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100225 select ICST525
226 help
227 Support for ARM's Integrator platform.
228
229config ARCH_REALVIEW
230 bool "ARM Ltd. RealView family"
231 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700232 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000233 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100234 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100235 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100236 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100237 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100238 help
239 This enables support for ARM Ltd RealView boards.
240
241config ARCH_VERSATILE
242 bool "ARM Ltd. Versatile family"
243 select ARM_AMBA
244 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700245 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000246 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100247 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100248 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100249 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100250 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100251 help
252 This enables support for ARM Ltd Versatile board.
253
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100254config ARCH_AT91
255 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800256 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100257 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700258 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100259 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100260 This enables support for systems based on the Atmel AT91RM9200,
261 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100262
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100264 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000265 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000266 help
267 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268
Russell King788c9702009-04-26 14:21:59 +0100269config ARCH_GEMINI
270 bool "Cortina Systems Gemini"
271 select CPU_FA526
272 select GENERIC_GPIO
273 select ARCH_REQUIRE_GPIOLIB
274 help
275 Support for the Cortina Systems Gemini family SoCs
276
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277config ARCH_EBSA110
278 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000279 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100280 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000281 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 help
283 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000284 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 Ethernet interface, two PCMCIA sockets, two serial ports and a
286 parallel port.
287
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000288config ARCH_EP93XX
289 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000290 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000291 select ARM_AMBA
292 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100293 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700294 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000295 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700296 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100297 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000298 help
299 This enables support for the Cirrus EP93xx series of CPUs.
300
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301config ARCH_FOOTBRIDGE
302 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000303 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000305 help
306 Support for systems based on the DC21285 companion chip
307 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308
Russell King788c9702009-04-26 14:21:59 +0100309config ARCH_MXC
310 bool "Freescale MXC/iMX-based"
311 select GENERIC_TIME
312 select GENERIC_CLOCKEVENTS
313 select ARCH_MTD_XIP
314 select GENERIC_GPIO
315 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100316 select HAVE_CLK
Russell King788c9702009-04-26 14:21:59 +0100317 help
318 Support for Freescale MXC/iMX-based family of processors
319
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100320config ARCH_STMP3XXX
321 bool "Freescale STMP3xxx"
322 select CPU_ARM926T
323 select HAVE_CLK
324 select COMMON_CLKDEV
325 select ARCH_REQUIRE_GPIOLIB
326 select GENERIC_TIME
327 select GENERIC_CLOCKEVENTS
328 select GENERIC_GPIO
329 select USB_ARCH_HAS_EHCI
330 help
331 Support for systems based on the Freescale 3xxx CPUs.
332
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100333config ARCH_NETX
334 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000335 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100336 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100337 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100338 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000339 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100340 This enables support for systems based on the Hilscher NetX Soc
341
342config ARCH_H720X
343 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000344 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100345 select ISA_DMA_API
346 help
347 This enables support for systems based on the Hynix HMS720x
348
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100349config ARCH_NOMADIK
350 bool "STMicroelectronics Nomadik"
351 select ARM_AMBA
352 select ARM_VIC
353 select CPU_ARM926T
354 select HAVE_CLK
355 select COMMON_CLKDEV
356 select GENERIC_TIME
357 select GENERIC_CLOCKEVENTS
Alessandro Rubini2ec1d352009-07-02 15:29:12 +0100358 select GENERIC_GPIO
359 select ARCH_REQUIRE_GPIOLIB
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100360 help
361 Support for the Nomadik platform by ST-Ericsson
362
Russell King3b938be2007-05-12 11:25:44 +0100363config ARCH_IOP13XX
364 bool "IOP13xx-based"
365 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000366 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100367 select PLAT_IOP
368 select PCI
369 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100370 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100371 help
372 Support for Intel's IOP13XX (XScale) family of processors.
373
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100374config ARCH_IOP32X
375 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100376 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000377 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100378 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100379 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100380 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100381 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000382 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100383 Support for Intel's 80219 and IOP32X (XScale) family of
384 processors.
385
386config ARCH_IOP33X
387 bool "IOP33x-based"
388 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000389 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100390 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100391 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100392 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100393 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100394 help
395 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396
Russell King3b938be2007-05-12 11:25:44 +0100397config ARCH_IXP23XX
398 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100399 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000400 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100401 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100402 help
Russell King3b938be2007-05-12 11:25:44 +0100403 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404
405config ARCH_IXP2000
406 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100407 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000408 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100409 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000410 help
411 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412
Russell King3b938be2007-05-12 11:25:44 +0100413config ARCH_IXP4XX
414 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100415 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000416 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100417 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100418 select GENERIC_TIME
419 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100420 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100421 help
Russell King3b938be2007-05-12 11:25:44 +0100422 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100423
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424config ARCH_L7200
425 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000426 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427 select FIQ
428 help
429 Say Y here if you intend to run this kernel on a LinkUp Systems
430 L7200 Software Development Board which uses an ARM720T processor.
431 Information on this board can be obtained at:
432
433 <http://www.linkupsys.com/>
434
435 If you have any questions or comments about the Linux kernel port
436 to this board, send e-mail to <sjhill@cotw.com>.
437
Saeed Bisharaedabd382009-08-06 15:12:43 +0300438config ARCH_DOVE
439 bool "Marvell Dove"
440 select PCI
441 select GENERIC_GPIO
442 select ARCH_REQUIRE_GPIOLIB
443 select GENERIC_TIME
444 select GENERIC_CLOCKEVENTS
445 select PLAT_ORION
446 help
447 Support for the Marvell Dove SoC 88AP510
448
Saeed Bishara651c74c2008-06-22 22:45:06 +0200449config ARCH_KIRKWOOD
450 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000451 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200452 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200453 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700454 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200455 select GENERIC_TIME
456 select GENERIC_CLOCKEVENTS
457 select PLAT_ORION
458 help
459 Support for the following Marvell Kirkwood series SoCs:
460 88F6180, 88F6192 and 88F6281.
461
Russell King788c9702009-04-26 14:21:59 +0100462config ARCH_LOKI
463 bool "Marvell Loki (88RC8480)"
464 select CPU_FEROCEON
465 select GENERIC_TIME
466 select GENERIC_CLOCKEVENTS
467 select PLAT_ORION
468 help
469 Support for the Marvell Loki (88RC8480) SoC.
470
471config ARCH_MV78XX0
472 bool "Marvell MV78xx0"
473 select CPU_FEROCEON
474 select PCI
475 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700476 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100477 select GENERIC_TIME
478 select GENERIC_CLOCKEVENTS
479 select PLAT_ORION
480 help
481 Support for the following Marvell MV78xx0 series SoCs:
482 MV781x0, MV782x0.
483
484config ARCH_ORION5X
485 bool "Marvell Orion"
486 depends on MMU
487 select CPU_FEROCEON
488 select PCI
489 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700490 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100491 select GENERIC_TIME
492 select GENERIC_CLOCKEVENTS
493 select PLAT_ORION
494 help
495 Support for the following Marvell Orion 5x series SoCs:
496 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
497 Orion-2 (5281), Orion-1-90 (6183).
498
499config ARCH_MMP
500 bool "Marvell PXA168/910"
501 depends on MMU
502 select GENERIC_GPIO
503 select ARCH_REQUIRE_GPIOLIB
504 select HAVE_CLK
505 select COMMON_CLKDEV
506 select GENERIC_TIME
507 select GENERIC_CLOCKEVENTS
508 select TICK_ONESHOT
509 select PLAT_PXA
510 help
511 Support for Marvell's PXA168/910 processor line.
512
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100513config ARCH_KS8695
514 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000515 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100516 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000517 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100518 help
519 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
520 System-on-Chip devices.
521
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100522config ARCH_NS9XXX
523 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000524 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100525 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100526 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100527 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700528 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100529 help
530 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
531 System.
532
533 <http://www.digi.com/products/microprocessors/index.jsp>
534
Russell King788c9702009-04-26 14:21:59 +0100535config ARCH_W90X900
536 bool "Nuvoton W90X900 CPU"
537 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100538 select ARCH_REQUIRE_GPIOLIB
539 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100540 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100541 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100542 select GENERIC_TIME
543 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200544 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100545 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
546 At present, the w90x900 has been renamed nuc900, regarding
547 the ARM series product line, you can login the following
548 link address to know more.
549
550 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
551 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400552
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100553config ARCH_PNX4008
554 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000555 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700556 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100557 help
558 This enables support for Philips PNX4008 mobile platform.
559
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700561 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100562 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500563 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100564 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800565 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700566 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000567 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700568 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100569 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100570 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000571 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800572 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000573 help
eric miao2c8086a2007-09-11 19:13:17 -0700574 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575
Russell King788c9702009-04-26 14:21:59 +0100576config ARCH_MSM
577 bool "Qualcomm MSM"
578 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800579 select GENERIC_TIME
580 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800581 help
Russell King788c9702009-04-26 14:21:59 +0100582 Support for Qualcomm MSM7K based systems. This runs on the ARM11
583 apps processor of the MSM7K and depends on a shared memory
584 interface to the ARM9 modem processor which runs the baseband stack
585 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800586
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587config ARCH_RPC
588 bool "RiscPC"
589 select ARCH_ACORN
590 select FIQ
591 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100592 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100593 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000594 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000595 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100596 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597 help
598 On the Acorn Risc-PC, Linux can support the internal IDE disk and
599 CD-ROM interface, serial and parallel port, and the floppy drive.
600
601config ARCH_SA1100
602 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000603 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100604 select ISA
Russell King05944d72006-11-30 20:43:51 +0000605 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500606 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100607 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000608 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800609 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000610 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100611 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700612 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100613 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700614 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000615 help
616 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617
618config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100619 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800620 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100621 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700622 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623 help
624 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
625 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000626 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627
Ben Dooksa08ab632008-10-21 14:06:39 +0100628config ARCH_S3C64XX
629 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000630 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900631 select CPU_V6
Ben Dooksa08ab632008-10-21 14:06:39 +0100632 select GENERIC_GPIO
Ben Dooks89f0ce72010-01-26 15:49:15 +0900633 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100634 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900635 select NO_IOPORT
Ben Dooks89c52ed2009-07-30 23:23:24 +0100636 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900637 select ARCH_REQUIRE_GPIOLIB
638 select SAMSUNG_CLKSRC
639 select SAMSUNG_IRQ_VIC_TIMER
640 select SAMSUNG_IRQ_UART
641 select S3C_GPIO_TRACK
642 select S3C_GPIO_PULL_UPDOWN
643 select S3C_GPIO_CFG_S3C24XX
644 select S3C_GPIO_CFG_S3C64XX
645 select S3C_DEV_NAND
646 select USB_ARCH_HAS_OHCI
647 select SAMSUNG_GPIOLIB_4BIT
Ben Dooksa08ab632008-10-21 14:06:39 +0100648 help
649 Samsung S3C64XX series based systems
650
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900651config ARCH_S5P6440
652 bool "Samsung S5P6440"
653 select CPU_V6
654 select GENERIC_GPIO
655 select HAVE_CLK
656 help
657 Samsung S5P6440 CPU based systems
658
Byungho Min5a7652f2009-06-23 21:39:42 +0900659config ARCH_S5PC1XX
660 bool "Samsung S5PC1XX"
661 select GENERIC_GPIO
662 select HAVE_CLK
663 select CPU_V7
664 help
665 Samsung S5PC1XX series based systems
666
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667config ARCH_SHARK
668 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000669 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100670 select ISA
671 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100672 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100673 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000674 help
675 Support for the StrongARM based Digital DNARD machine, also known
676 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677
678config ARCH_LH7A40X
679 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000680 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100681 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
682 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683 help
684 Say Y here for systems based on one of the Sharp LH7A40X
685 System on a Chip processors. These CPUs include an ARM922T
686 core with a wide array of integrated devices for
687 hand-held and low-power applications.
688
Linus Walleijd98aac72009-04-27 10:21:46 +0100689config ARCH_U300
690 bool "ST-Ericsson U300 Series"
691 depends on MMU
692 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100693 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100694 select ARM_AMBA
695 select ARM_VIC
696 select GENERIC_TIME
697 select GENERIC_CLOCKEVENTS
698 select HAVE_CLK
699 select COMMON_CLKDEV
700 select GENERIC_GPIO
701 help
702 Support for ST-Ericsson U300 series mobile platforms.
703
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100704config ARCH_DAVINCI
705 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000706 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100707 select GENERIC_TIME
708 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100709 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700710 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700711 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100712 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700713 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700714 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700715 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530716 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100717 help
718 Support for TI's DaVinci platform.
719
Russell King3b938be2007-05-12 11:25:44 +0100720config ARCH_OMAP
721 bool "TI OMAP"
722 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700723 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700724 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100725 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100726 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700727 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100728 help
729 Support for TI's OMAP platform (OMAP1 and OMAP2).
730
Leo Chen6288e282009-08-07 19:46:15 +0100731config ARCH_BCMRING
732 bool "Broadcom BCMRING"
733 depends on MMU
734 select CPU_V6
735 select ARM_AMBA
736 select COMMON_CLKDEV
737 select GENERIC_TIME
738 select GENERIC_CLOCKEVENTS
739 select ARCH_WANT_OPTIONAL_GPIOLIB
740 help
741 Support for Broadcom's BCMRing platform.
742
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100743config ARCH_U8500
744 bool "ST-Ericsson U8500 Series"
745 select CPU_V7
746 select ARM_AMBA
747 select GENERIC_TIME
748 select GENERIC_CLOCKEVENTS
749 select COMMON_CLKDEV
750 help
751 Support for ST-Ericsson's Ux500 architecture
752
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753endchoice
754
755source "arch/arm/mach-clps711x/Kconfig"
756
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000757source "arch/arm/mach-ep93xx/Kconfig"
758
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759source "arch/arm/mach-footbridge/Kconfig"
760
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200761source "arch/arm/mach-gemini/Kconfig"
762
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763source "arch/arm/mach-integrator/Kconfig"
764
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100765source "arch/arm/mach-iop32x/Kconfig"
766
767source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768
Dan Williams285f5fa2006-12-07 02:59:39 +0100769source "arch/arm/mach-iop13xx/Kconfig"
770
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771source "arch/arm/mach-ixp4xx/Kconfig"
772
773source "arch/arm/mach-ixp2000/Kconfig"
774
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100775source "arch/arm/mach-ixp23xx/Kconfig"
776
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200777source "arch/arm/mach-loki/Kconfig"
778
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200779source "arch/arm/mach-mv78xx0/Kconfig"
780
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781source "arch/arm/mach-pxa/Kconfig"
Eric Miaobd5ce432009-01-20 12:06:01 +0800782source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783
Eric Miao49cbe782009-01-20 14:15:18 +0800784source "arch/arm/mach-mmp/Kconfig"
785
Linus Torvalds1da177e2005-04-16 15:20:36 -0700786source "arch/arm/mach-sa1100/Kconfig"
787
Tony Lindgrend48af152005-07-10 19:58:17 +0100788source "arch/arm/plat-omap/Kconfig"
789
790source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700791
Tony Lindgren1dbae812005-11-10 14:26:51 +0000792source "arch/arm/mach-omap2/Kconfig"
793
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400794source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400795
Saeed Bishara651c74c2008-06-22 22:45:06 +0200796source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797
Saeed Bisharaedabd382009-08-06 15:12:43 +0300798source "arch/arm/mach-dove/Kconfig"
799
Ben Dookscf383672009-11-10 00:14:58 +0000800source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100801source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900802source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900803source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100804
805if ARCH_S3C2410
806source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100808source "arch/arm/mach-s3c2412/Kconfig"
809source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100810source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100811endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700812
Ben Dooksa08ab632008-10-21 14:06:39 +0100813if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900814source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100815endif
816
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900817source "arch/arm/mach-s5p6440/Kconfig"
818
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100819source "arch/arm/plat-stmp3xxx/Kconfig"
820
Byungho Min5a7652f2009-06-23 21:39:42 +0900821if ARCH_S5PC1XX
822source "arch/arm/mach-s5pc100/Kconfig"
823endif
824
Linus Torvalds1da177e2005-04-16 15:20:36 -0700825source "arch/arm/mach-lh7a40x/Kconfig"
826
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827source "arch/arm/mach-h720x/Kconfig"
828
829source "arch/arm/mach-versatile/Kconfig"
830
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100831source "arch/arm/mach-aaec2000/Kconfig"
832
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000833source "arch/arm/mach-realview/Kconfig"
834
Andrew Victor9d041262007-02-05 11:42:07 +0100835source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000836
Quinn Jensen52c543f2007-07-09 22:06:53 +0100837source "arch/arm/plat-mxc/Kconfig"
838
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100839source "arch/arm/mach-nomadik/Kconfig"
Srinidhi Kasagar59b559d2009-11-12 06:20:54 +0100840source "arch/arm/plat-nomadik/Kconfig"
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100841
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100842source "arch/arm/mach-netx/Kconfig"
843
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100844source "arch/arm/mach-ns9xxx/Kconfig"
845
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100846source "arch/arm/mach-davinci/Kconfig"
847
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100848source "arch/arm/mach-ks8695/Kconfig"
849
Brian Swetland9e73c842007-11-26 04:12:13 -0800850source "arch/arm/mach-msm/Kconfig"
851
Linus Walleijd98aac72009-04-27 10:21:46 +0100852source "arch/arm/mach-u300/Kconfig"
853
wanzongshun7ec80dd2008-12-03 03:55:38 +0100854source "arch/arm/mach-w90x900/Kconfig"
855
Leo Chen6288e282009-08-07 19:46:15 +0100856source "arch/arm/mach-bcmring/Kconfig"
857
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100858source "arch/arm/mach-ux500/Kconfig"
859
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860# Definitions to make life easier
861config ARCH_ACORN
862 bool
863
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100864config PLAT_IOP
865 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700866 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700867 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100868
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400869config PLAT_ORION
870 bool
871
Eric Miaobd5ce432009-01-20 12:06:01 +0800872config PLAT_PXA
873 bool
874
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875source arch/arm/mm/Kconfig
876
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100877config IWMMXT
878 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800879 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
880 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100881 help
882 Enable support for iWMMXt context switching at run time if
883 running on a CPU that supports it.
884
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
886config XSCALE_PMU
887 bool
888 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
889 default y
890
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100891if !MMU
892source "arch/arm/Kconfig-nommu"
893endif
894
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100895config ARM_ERRATA_411920
896 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
897 depends on CPU_V6 && !SMP
898 help
899 Invalidation of the Instruction Cache operation can
900 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
901 It does not affect the MPCore. This option enables the ARM Ltd.
902 recommended workaround.
903
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100904config ARM_ERRATA_430973
905 bool "ARM errata: Stale prediction on replaced interworking branch"
906 depends on CPU_V7
907 help
908 This option enables the workaround for the 430973 Cortex-A8
909 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
910 interworking branch is replaced with another code sequence at the
911 same virtual address, whether due to self-modifying code or virtual
912 to physical address re-mapping, Cortex-A8 does not recover from the
913 stale interworking branch prediction. This results in Cortex-A8
914 executing the new code sequence in the incorrect ARM or Thumb state.
915 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
916 and also flushes the branch target cache at every context switch.
917 Note that setting specific bits in the ACTLR register may not be
918 available in non-secure mode.
919
Catalin Marinas855c5512009-04-30 17:06:15 +0100920config ARM_ERRATA_458693
921 bool "ARM errata: Processor deadlock when a false hazard is created"
922 depends on CPU_V7
923 help
924 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
925 erratum. For very specific sequences of memory operations, it is
926 possible for a hazard condition intended for a cache line to instead
927 be incorrectly associated with a different cache line. This false
928 hazard might then cause a processor deadlock. The workaround enables
929 the L1 caching of the NEON accesses and disables the PLD instruction
930 in the ACTLR register. Note that setting specific bits in the ACTLR
931 register may not be available in non-secure mode.
932
Catalin Marinas0516e462009-04-30 17:06:20 +0100933config ARM_ERRATA_460075
934 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
935 depends on CPU_V7
936 help
937 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
938 erratum. Any asynchronous access to the L2 cache may encounter a
939 situation in which recent store transactions to the L2 cache are lost
940 and overwritten with stale memory contents from external memory. The
941 workaround disables the write-allocate mode for the L2 cache via the
942 ACTLR register. Note that setting specific bits in the ACTLR register
943 may not be available in non-secure mode.
944
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945endmenu
946
947source "arch/arm/common/Kconfig"
948
949config FORCE_MAX_ZONEORDER
950 int
951 depends on SA1111
952 default "9"
953
954menu "Bus support"
955
956config ARM_AMBA
957 bool
958
959config ISA
960 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961 help
962 Find out whether you have ISA slots on your motherboard. ISA is the
963 name of a bus system, i.e. the way the CPU talks to the other stuff
964 inside your box. Other bus systems are PCI, EISA, MicroChannel
965 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
966 newer boards don't support it. If you have ISA, say Y, otherwise N.
967
Russell King065909b2006-01-04 15:44:16 +0000968# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969config ISA_DMA
970 bool
Russell King065909b2006-01-04 15:44:16 +0000971 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972
Russell King065909b2006-01-04 15:44:16 +0000973# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100974config ISA_DMA_API
975 bool
Al Viro5cae8412005-05-04 05:39:22 +0100976
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100978 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979 help
980 Find out whether you have a PCI motherboard. PCI is the name of a
981 bus system, i.e. the way the CPU talks to the other stuff inside
982 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
983 VESA. If you have PCI, say Y, otherwise N.
984
Matthew Wilcox36e23592007-07-10 10:54:40 -0600985config PCI_SYSCALL
986 def_bool PCI
987
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988# Select the host bridge type
989config PCI_HOST_VIA82C505
990 bool
991 depends on PCI && ARCH_SHARK
992 default y
993
Mike Rapoporta0113a92007-11-25 08:55:34 +0100994config PCI_HOST_ITE8152
995 bool
996 depends on PCI && MACH_ARMCORE
997 default y
998 select DMABOUNCE
999
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000source "drivers/pci/Kconfig"
1001
1002source "drivers/pcmcia/Kconfig"
1003
1004endmenu
1005
1006menu "Kernel Features"
1007
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001008source "kernel/time/Kconfig"
1009
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010config SMP
1011 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001012 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001013 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001014 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001015 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001016 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017 help
1018 This enables support for systems with more than one CPU. If you have
1019 a system with only one CPU, like most personal computers, say N. If
1020 you have a system with more than one CPU, say Y.
1021
1022 If you say N here, the kernel will run on single and multiprocessor
1023 machines, but will use only one CPU of a multiprocessor machine. If
1024 you say Y here, the kernel will run on many, but not all, single
1025 processor machines. On a single processor machine, the kernel will
1026 run faster if you say N here.
1027
Adrian Bunk03502fa2008-02-03 15:50:21 +02001028 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1030 <http://www.linuxdoc.org/docs.html#howto>.
1031
1032 If you don't know what to do here, say N.
1033
Russell Kinga8cbcd92009-05-16 11:51:14 +01001034config HAVE_ARM_SCU
1035 bool
1036 depends on SMP
1037 help
1038 This option enables support for the ARM system coherency unit
1039
Russell Kingf32f4ce2009-05-16 12:14:21 +01001040config HAVE_ARM_TWD
1041 bool
1042 depends on SMP
1043 help
1044 This options enables support for the ARM timer and watchdog unit
1045
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001046choice
1047 prompt "Memory split"
1048 default VMSPLIT_3G
1049 help
1050 Select the desired split between kernel and user memory.
1051
1052 If you are not absolutely sure what you are doing, leave this
1053 option alone!
1054
1055 config VMSPLIT_3G
1056 bool "3G/1G user/kernel split"
1057 config VMSPLIT_2G
1058 bool "2G/2G user/kernel split"
1059 config VMSPLIT_1G
1060 bool "1G/3G user/kernel split"
1061endchoice
1062
1063config PAGE_OFFSET
1064 hex
1065 default 0x40000000 if VMSPLIT_1G
1066 default 0x80000000 if VMSPLIT_2G
1067 default 0xC0000000
1068
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069config NR_CPUS
1070 int "Maximum number of CPUs (2-32)"
1071 range 2 32
1072 depends on SMP
1073 default "4"
1074
Russell Kinga054a812005-11-02 22:24:33 +00001075config HOTPLUG_CPU
1076 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1077 depends on SMP && HOTPLUG && EXPERIMENTAL
1078 help
1079 Say Y here to experiment with turning CPUs off and on. CPUs
1080 can be controlled through /sys/devices/system/cpu.
1081
Russell King37ee16a2005-11-08 19:08:05 +00001082config LOCAL_TIMERS
1083 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001084 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001085 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001086 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001087 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001088 help
1089 Enable support for local timers on SMP platforms, rather then the
1090 legacy IPI broadcast method. Local timers allows the system
1091 accounting to be spread across the timer interval, preventing a
1092 "thundering herd" at every timer tick.
1093
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001094source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095
Russell Kingf8065812006-03-02 22:41:59 +00001096config HZ
1097 int
1098 default 128 if ARCH_L7200
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001099 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440
Russell Kingbfe65702006-03-04 11:01:53 +00001100 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001101 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001102 default 100
1103
Catalin Marinas16c79652009-07-24 12:33:02 +01001104config THUMB2_KERNEL
1105 bool "Compile the kernel in Thumb-2 mode"
1106 depends on CPU_V7 && EXPERIMENTAL
1107 select AEABI
1108 select ARM_ASM_UNIFIED
1109 help
1110 By enabling this option, the kernel will be compiled in
1111 Thumb-2 mode. A compiler/assembler that understand the unified
1112 ARM-Thumb syntax is needed.
1113
1114 If unsure, say N.
1115
Catalin Marinas0becb082009-07-24 12:32:53 +01001116config ARM_ASM_UNIFIED
1117 bool
1118
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001119config AEABI
1120 bool "Use the ARM EABI to compile the kernel"
1121 help
1122 This option allows for the kernel to be compiled using the latest
1123 ARM ABI (aka EABI). This is only useful if you are using a user
1124 space environment that is also compiled with EABI.
1125
1126 Since there are major incompatibilities between the legacy ABI and
1127 EABI, especially with regard to structure member alignment, this
1128 option also changes the kernel syscall calling convention to
1129 disambiguate both ABIs and allow for backward compatibility support
1130 (selected with CONFIG_OABI_COMPAT).
1131
1132 To use this you need GCC version 4.0.0 or later.
1133
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001134config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001135 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001136 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001137 default y
1138 help
1139 This option preserves the old syscall interface along with the
1140 new (ARM EABI) one. It also provides a compatibility layer to
1141 intercept syscalls that have structure arguments which layout
1142 in memory differs between the legacy ABI and the new ARM EABI
1143 (only for non "thumb" binaries). This option adds a tiny
1144 overhead to all syscalls and produces a slightly larger kernel.
1145 If you know you'll be using only pure EABI user space then you
1146 can say N here. If this option is not selected and you attempt
1147 to execute a legacy ABI binary then the result will be
1148 UNPREDICTABLE (in fact it can be predicted that it won't work
1149 at all). If in doubt say Y.
1150
Mel Gormaneb335752009-05-13 17:34:48 +01001151config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001152 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001153
Russell King07a2f732008-10-01 21:39:58 +01001154# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001155config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001157
Russell King05944d72006-11-30 20:43:51 +00001158config ARCH_SPARSEMEM_ENABLE
1159 bool
1160
Russell King07a2f732008-10-01 21:39:58 +01001161config ARCH_SPARSEMEM_DEFAULT
1162 def_bool ARCH_SPARSEMEM_ENABLE
1163
Russell King05944d72006-11-30 20:43:51 +00001164config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001165 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001166
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001167config NODES_SHIFT
1168 int
1169 default "4" if ARCH_LH7A40X
1170 default "2"
1171 depends on NEED_MULTIPLE_NODES
1172
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001173config HIGHMEM
1174 bool "High Memory Support (EXPERIMENTAL)"
1175 depends on MMU && EXPERIMENTAL
1176 help
1177 The address space of ARM processors is only 4 Gigabytes large
1178 and it has to accommodate user address space, kernel address
1179 space as well as some memory mapped IO. That means that, if you
1180 have a large amount of physical memory and/or IO, not all of the
1181 memory can be "permanently mapped" by the kernel. The physical
1182 memory that is not permanently mapped is called "high memory".
1183
1184 Depending on the selected kernel/user memory split, minimum
1185 vmalloc space and actual amount of RAM, you may not need this
1186 option which should result in a slightly faster kernel.
1187
1188 If unsure, say n.
1189
Russell King65cec8e2009-08-17 20:02:06 +01001190config HIGHPTE
1191 bool "Allocate 2nd-level pagetables from highmem"
1192 depends on HIGHMEM
1193 depends on !OUTER_CACHE
1194
Dave Hansen3f22ab22005-06-23 00:07:43 -07001195source "mm/Kconfig"
1196
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197config LEDS
1198 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001199 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001200 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001201 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1202 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001203 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001204 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001205 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206 help
1207 If you say Y here, the LEDs on your machine will be used
1208 to provide useful information about your current system status.
1209
1210 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1211 be able to select which LEDs are active using the options below. If
1212 you are compiling a kernel for the EBSA-110 or the LART however, the
1213 red LED will simply flash regularly to indicate that the system is
1214 still functional. It is safe to say Y here if you have a CATS
1215 system, but the driver will do nothing.
1216
1217config LEDS_TIMER
1218 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001219 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1220 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001221 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001222 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001223 default y if ARCH_EBSA110
1224 help
1225 If you say Y here, one of the system LEDs (the green one on the
1226 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1227 will flash regularly to indicate that the system is still
1228 operational. This is mainly useful to kernel hackers who are
1229 debugging unstable kernels.
1230
1231 The LART uses the same LED for both Timer LED and CPU usage LED
1232 functions. You may choose to use both, but the Timer LED function
1233 will overrule the CPU usage LED.
1234
1235config LEDS_CPU
1236 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001237 !ARCH_OMAP) \
1238 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1239 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001240 depends on LEDS
1241 help
1242 If you say Y here, the red LED will be used to give a good real
1243 time indication of CPU usage, by lighting whenever the idle task
1244 is not currently executing.
1245
1246 The LART uses the same LED for both Timer LED and CPU usage LED
1247 functions. You may choose to use both, but the Timer LED function
1248 will overrule the CPU usage LED.
1249
1250config ALIGNMENT_TRAP
1251 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001252 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253 default y if !ARCH_EBSA110
1254 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001255 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1257 address divisible by 4. On 32-bit ARM processors, these non-aligned
1258 fetch/store instructions will be emulated in software if you say
1259 here, which has a severe performance impact. This is necessary for
1260 correct operation of some network protocols. With an IP-only
1261 configuration it is safe to say N, otherwise say Y.
1262
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001263config UACCESS_WITH_MEMCPY
1264 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1265 depends on MMU && EXPERIMENTAL
1266 default y if CPU_FEROCEON
1267 help
1268 Implement faster copy_to_user and clear_user methods for CPU
1269 cores where a 8-word STM instruction give significantly higher
1270 memory write throughput than a sequence of individual 32bit stores.
1271
1272 A possible side effect is a slight increase in scheduling latency
1273 between threads sharing the same address space if they invoke
1274 such copy operations with large buffers.
1275
1276 However, if the CPU data cache is using a write-allocate mode,
1277 this option is unlikely to provide any performance gain.
1278
Linus Torvalds1da177e2005-04-16 15:20:36 -07001279endmenu
1280
1281menu "Boot options"
1282
1283# Compressed boot loader in ROM. Yes, we really want to ask about
1284# TEXT and BSS so we preserve their values in the config files.
1285config ZBOOT_ROM_TEXT
1286 hex "Compressed ROM boot loader base address"
1287 default "0"
1288 help
1289 The physical address at which the ROM-able zImage is to be
1290 placed in the target. Platforms which normally make use of
1291 ROM-able zImage formats normally set this to a suitable
1292 value in their defconfig file.
1293
1294 If ZBOOT_ROM is not enabled, this has no effect.
1295
1296config ZBOOT_ROM_BSS
1297 hex "Compressed ROM boot loader BSS address"
1298 default "0"
1299 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001300 The base address of an area of read/write memory in the target
1301 for the ROM-able zImage which must be available while the
1302 decompressor is running. It must be large enough to hold the
1303 entire decompressed kernel plus an additional 128 KiB.
1304 Platforms which normally make use of ROM-able zImage formats
1305 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306
1307 If ZBOOT_ROM is not enabled, this has no effect.
1308
1309config ZBOOT_ROM
1310 bool "Compressed boot loader in ROM/flash"
1311 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1312 help
1313 Say Y here if you intend to execute your compressed kernel image
1314 (zImage) directly from ROM or flash. If unsure, say N.
1315
1316config CMDLINE
1317 string "Default kernel command string"
1318 default ""
1319 help
1320 On some architectures (EBSA110 and CATS), there is currently no way
1321 for the boot loader to pass arguments to the kernel. For these
1322 architectures, you should supply some command-line options at build
1323 time by entering them here. As a minimum, you should specify the
1324 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1325
1326config XIP_KERNEL
1327 bool "Kernel Execute-In-Place from ROM"
1328 depends on !ZBOOT_ROM
1329 help
1330 Execute-In-Place allows the kernel to run from non-volatile storage
1331 directly addressable by the CPU, such as NOR flash. This saves RAM
1332 space since the text section of the kernel is not loaded from flash
1333 to RAM. Read-write sections, such as the data section and stack,
1334 are still copied to RAM. The XIP kernel is not compressed since
1335 it has to run directly from flash, so it will take more space to
1336 store it. The flash address used to link the kernel object files,
1337 and for storing it, is configuration dependent. Therefore, if you
1338 say Y here, you must know the proper physical address where to
1339 store the kernel image depending on your own flash memory usage.
1340
1341 Also note that the make target becomes "make xipImage" rather than
1342 "make zImage" or "make Image". The final kernel binary to put in
1343 ROM memory will be arch/arm/boot/xipImage.
1344
1345 If unsure, say N.
1346
1347config XIP_PHYS_ADDR
1348 hex "XIP Kernel Physical Location"
1349 depends on XIP_KERNEL
1350 default "0x00080000"
1351 help
1352 This is the physical address in your flash memory the kernel will
1353 be linked for and stored to. This address is dependent on your
1354 own flash usage.
1355
Richard Purdiec587e4a2007-02-06 21:29:00 +01001356config KEXEC
1357 bool "Kexec system call (EXPERIMENTAL)"
1358 depends on EXPERIMENTAL
1359 help
1360 kexec is a system call that implements the ability to shutdown your
1361 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001362 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001363 you can start any kernel with it, not just Linux.
1364
1365 It is an ongoing process to be certain the hardware in a machine
1366 is properly shutdown, so do not be surprised if this code does not
1367 initially work for you. It may help to enable device hotplugging
1368 support.
1369
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001370config ATAGS_PROC
1371 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001372 depends on KEXEC
1373 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001374 help
1375 Should the atags used to boot the kernel be exported in an "atags"
1376 file in procfs. Useful with kexec.
1377
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378endmenu
1379
Russell Kingac9d7ef2008-08-18 17:26:00 +01001380menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381
Ben Dooks89c52ed2009-07-30 23:23:24 +01001382if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383
1384source "drivers/cpufreq/Kconfig"
1385
1386config CPU_FREQ_SA1100
1387 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388
1389config CPU_FREQ_SA1110
1390 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001391
1392config CPU_FREQ_INTEGRATOR
1393 tristate "CPUfreq driver for ARM Integrator CPUs"
1394 depends on ARCH_INTEGRATOR && CPU_FREQ
1395 default y
1396 help
1397 This enables the CPUfreq driver for ARM Integrator CPUs.
1398
1399 For details, take a look at <file:Documentation/cpu-freq>.
1400
1401 If in doubt, say Y.
1402
Russell King9e2697f2007-12-14 13:30:14 +00001403config CPU_FREQ_PXA
1404 bool
1405 depends on CPU_FREQ && ARCH_PXA && PXA25x
1406 default y
1407 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1408
Mark Brownb3748dd2009-06-15 11:23:20 +01001409config CPU_FREQ_S3C64XX
1410 bool "CPUfreq support for Samsung S3C64XX CPUs"
1411 depends on CPU_FREQ && CPU_S3C6410
1412
Ben Dooks9d56c022009-07-30 23:23:25 +01001413config CPU_FREQ_S3C
1414 bool
1415 help
1416 Internal configuration node for common cpufreq on Samsung SoC
1417
1418config CPU_FREQ_S3C24XX
1419 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1420 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1421 select CPU_FREQ_S3C
1422 help
1423 This enables the CPUfreq driver for the Samsung S3C24XX family
1424 of CPUs.
1425
1426 For details, take a look at <file:Documentation/cpu-freq>.
1427
1428 If in doubt, say N.
1429
1430config CPU_FREQ_S3C24XX_PLL
1431 bool "Support CPUfreq changing of PLL frequency"
1432 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1433 help
1434 Compile in support for changing the PLL frequency from the
1435 S3C24XX series CPUfreq driver. The PLL takes time to settle
1436 after a frequency change, so by default it is not enabled.
1437
1438 This also means that the PLL tables for the selected CPU(s) will
1439 be built which may increase the size of the kernel image.
1440
1441config CPU_FREQ_S3C24XX_DEBUG
1442 bool "Debug CPUfreq Samsung driver core"
1443 depends on CPU_FREQ_S3C24XX
1444 help
1445 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1446
1447config CPU_FREQ_S3C24XX_IODEBUG
1448 bool "Debug CPUfreq Samsung driver IO timing"
1449 depends on CPU_FREQ_S3C24XX
1450 help
1451 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1452
Ben Dookse6d197a2009-07-30 23:23:42 +01001453config CPU_FREQ_S3C24XX_DEBUGFS
1454 bool "Export debugfs for CPUFreq"
1455 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1456 help
1457 Export status information via debugfs.
1458
Linus Torvalds1da177e2005-04-16 15:20:36 -07001459endif
1460
Russell Kingac9d7ef2008-08-18 17:26:00 +01001461source "drivers/cpuidle/Kconfig"
1462
1463endmenu
1464
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465menu "Floating point emulation"
1466
1467comment "At least one emulation must be selected"
1468
1469config FPE_NWFPE
1470 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001471 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472 ---help---
1473 Say Y to include the NWFPE floating point emulator in the kernel.
1474 This is necessary to run most binaries. Linux does not currently
1475 support floating point hardware so you need to say Y here even if
1476 your machine has an FPA or floating point co-processor podule.
1477
1478 You may say N here if you are going to load the Acorn FPEmulator
1479 early in the bootup.
1480
1481config FPE_NWFPE_XP
1482 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001483 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001484 help
1485 Say Y to include 80-bit support in the kernel floating-point
1486 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1487 Note that gcc does not generate 80-bit operations by default,
1488 so in most cases this option only enlarges the size of the
1489 floating point emulator without any good reason.
1490
1491 You almost surely want to say N here.
1492
1493config FPE_FASTFPE
1494 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001495 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001496 ---help---
1497 Say Y here to include the FAST floating point emulator in the kernel.
1498 This is an experimental much faster emulator which now also has full
1499 precision for the mantissa. It does not support any exceptions.
1500 It is very simple, and approximately 3-6 times faster than NWFPE.
1501
1502 It should be sufficient for most programs. It may be not suitable
1503 for scientific calculations, but you have to check this for yourself.
1504 If you do not feel you need a faster FP emulation you should better
1505 choose NWFPE.
1506
1507config VFP
1508 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001509 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001510 help
1511 Say Y to include VFP support code in the kernel. This is needed
1512 if your hardware includes a VFP unit.
1513
1514 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1515 release notes and additional status information.
1516
1517 Say N if your target does not have VFP hardware.
1518
Catalin Marinas25ebee02007-09-25 15:22:24 +01001519config VFPv3
1520 bool
1521 depends on VFP
1522 default y if CPU_V7
1523
Catalin Marinasb5872db2008-01-10 19:16:17 +01001524config NEON
1525 bool "Advanced SIMD (NEON) Extension support"
1526 depends on VFPv3 && CPU_V7
1527 help
1528 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1529 Extension.
1530
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531endmenu
1532
1533menu "Userspace binary formats"
1534
1535source "fs/Kconfig.binfmt"
1536
1537config ARTHUR
1538 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001539 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540 help
1541 Say Y here to include the kernel code necessary if you want to run
1542 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1543 experimental; if this sounds frightening, say N and sleep in peace.
1544 You can also say M here to compile this support as a module (which
1545 will be called arthur).
1546
1547endmenu
1548
1549menu "Power management options"
1550
Russell Kingeceab4a2005-11-15 11:31:41 +00001551source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001552
Johannes Bergf4cb5702007-12-08 02:14:00 +01001553config ARCH_SUSPEND_POSSIBLE
1554 def_bool y
1555
Linus Torvalds1da177e2005-04-16 15:20:36 -07001556endmenu
1557
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001558source "net/Kconfig"
1559
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001560source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001561
1562source "fs/Kconfig"
1563
Linus Torvalds1da177e2005-04-16 15:20:36 -07001564source "arch/arm/Kconfig.debug"
1565
1566source "security/Kconfig"
1567
1568source "crypto/Kconfig"
1569
1570source "lib/Kconfig"